// SPDX-License-Identifier: GPL-2.0-or-later /* * thinkpad_acpi.c - ThinkPad ACPI Extras * * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net> * Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br> */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #define TPACPI_VERSION "0.26" #define TPACPI_SYSFS_VERSION 0x030000 /* * Changelog: * 2007-10-20 changelog trimmed down * * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to * drivers/misc. * * 2006-11-22 0.13 new maintainer * changelog now lives in git commit history, and will * not be updated further in-file. * * 2005-03-17 0.11 support for 600e, 770x * thanks to Jamie Lentin <lentinj@dial.pipex.com> * * 2005-01-16 0.9 use MODULE_VERSION * thanks to Henrik Brix Andersen <brix@gentoo.org> * fix parameter passing on module loading * thanks to Rusty Russell <rusty@rustcorp.com.au> * thanks to Jim Radford <radford@blackbean.org> * 2004-11-08 0.8 fix init error case, don't return from a macro * thanks to Chris Wright <chrisw@osdl.org> */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> #include <linux/string.h> #include <linux/list.h> #include <linux/mutex.h> #include <linux/sched.h> #include <linux/sched/signal.h> #include <linux/kthread.h> #include <linux/freezer.h> #include <linux/delay.h> #include <linux/slab.h> #include <linux/nvram.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/sysfs.h> #include <linux/backlight.h> #include <linux/bitops.h> #include <linux/fb.h> #include <linux/platform_device.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/input.h> #include <linux/leds.h> #include <linux/rfkill.h> #include <linux/dmi.h> #include <linux/jiffies.h> #include <linux/workqueue.h> #include <linux/acpi.h> #include <linux/pci.h> #include <linux/power_supply.h> #include <sound/core.h> #include <sound/control.h> #include <sound/initval.h> #include <linux/uaccess.h> #include <acpi/battery.h> #include <acpi/video.h> /* ThinkPad CMOS commands */ #define TP_CMOS_VOLUME_DOWN 0 #define TP_CMOS_VOLUME_UP 1 #define TP_CMOS_VOLUME_MUTE 2 #define TP_CMOS_BRIGHTNESS_UP 4 #define TP_CMOS_BRIGHTNESS_DOWN 5 #define TP_CMOS_THINKLIGHT_ON 12 #define TP_CMOS_THINKLIGHT_OFF 13 /* NVRAM Addresses */ enum tp_nvram_addr { <------>TP_NVRAM_ADDR_HK2 = 0x57, <------>TP_NVRAM_ADDR_THINKLIGHT = 0x58, <------>TP_NVRAM_ADDR_VIDEO = 0x59, <------>TP_NVRAM_ADDR_BRIGHTNESS = 0x5e, <------>TP_NVRAM_ADDR_MIXER = 0x60, }; /* NVRAM bit masks */ enum { <------>TP_NVRAM_MASK_HKT_THINKPAD = 0x08, <------>TP_NVRAM_MASK_HKT_ZOOM = 0x20, <------>TP_NVRAM_MASK_HKT_DISPLAY = 0x40, <------>TP_NVRAM_MASK_HKT_HIBERNATE = 0x80, <------>TP_NVRAM_MASK_THINKLIGHT = 0x10, <------>TP_NVRAM_MASK_HKT_DISPEXPND = 0x30, <------>TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20, <------>TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f, <------>TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0, <------>TP_NVRAM_MASK_MUTE = 0x40, <------>TP_NVRAM_MASK_HKT_VOLUME = 0x80, <------>TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f, <------>TP_NVRAM_POS_LEVEL_VOLUME = 0, }; /* Misc NVRAM-related */ enum { <------>TP_NVRAM_LEVEL_VOLUME_MAX = 14, }; /* ACPI HIDs */ #define TPACPI_ACPI_IBM_HKEY_HID "IBM0068" #define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068" #define TPACPI_ACPI_LENOVO_HKEY_V2_HID "LEN0268" #define TPACPI_ACPI_EC_HID "PNP0C09" /* Input IDs */ #define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */ #define TPACPI_HKEY_INPUT_VERSION 0x4101 /* ACPI \WGSV commands */ enum { <------>TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */ <------>TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */ <------>TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */ <------>TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */ }; /* TP_ACPI_WGSV_GET_STATE bits */ enum { <------>TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */ <------>TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */ <------>TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */ <------>TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */ <------>TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */ <------>TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */ <------>TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */ <------>TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */ <------>TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */ <------>TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */ }; /* HKEY events */ enum tpacpi_hkey_event_t { <------>/* Hotkey-related */ <------>TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */ <------>TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */ <------>TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */ <------>TP_HKEY_EV_KBD_LIGHT = 0x1012, /* Thinklight/kbd backlight */ <------>TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */ <------>TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */ <------>TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */ <------>/* Reasons for waking up from S3/S4 */ <------>TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */ <------>TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */ <------>TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */ <------>TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */ <------>TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */ <------>TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */ <------>/* Auto-sleep after eject request */ <------>TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */ <------>TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */ <------>/* Misc bay events */ <------>TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */ <------>TP_HKEY_EV_HOTPLUG_DOCK = 0x4010, /* docked into hotplug dock <------><------><------><------><------><------> or port replicator */ <------>TP_HKEY_EV_HOTPLUG_UNDOCK = 0x4011, /* undocked from hotplug <------><------><------><------><------><------> dock or port replicator */ <------>/* User-interface events */ <------>TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */ <------>TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */ <------>TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */ <------>TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */ <------>TP_HKEY_EV_TABLET_CHANGED = 0x60c0, /* X1 Yoga (2016): <------><------><------><------><------><------> * enter/leave tablet mode <------><------><------><------><------><------> */ <------>TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */ <------>TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */ <------>TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */ <------>/* Key-related user-interface events */ <------>TP_HKEY_EV_KEY_NUMLOCK = 0x6000, /* NumLock key pressed */ <------>TP_HKEY_EV_KEY_FN = 0x6005, /* Fn key pressed? E420 */ <------>TP_HKEY_EV_KEY_FN_ESC = 0x6060, /* Fn+Esc key pressed X240 */ <------>/* Thermal events */ <------>TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */ <------>TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */ <------>TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */ <------>TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */ <------>TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* windows; thermal table changed */ <------>TP_HKEY_EV_THM_CSM_COMPLETED = 0x6032, /* windows; thermal control set <------><------><------><------><------><------> * command completed. Related to <------><------><------><------><------><------> * AML DYTC */ <------>TP_HKEY_EV_THM_TRANSFM_CHANGED = 0x60F0, /* windows; thermal transformation <------><------><------><------><------><------> * changed. Related to AML GMTS */ <------>/* AC-related events */ <------>TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */ <------>/* Further user-interface events */ <------>TP_HKEY_EV_PALM_DETECTED = 0x60b0, /* palm hoveres keyboard */ <------>TP_HKEY_EV_PALM_UNDETECTED = 0x60b1, /* palm removed */ <------>/* Misc */ <------>TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */ }; /**************************************************************************** * Main driver */ #define TPACPI_NAME "thinkpad" #define TPACPI_DESC "ThinkPad ACPI Extras" #define TPACPI_FILE TPACPI_NAME "_acpi" #define TPACPI_URL "http://ibm-acpi.sf.net/" #define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net" #define TPACPI_PROC_DIR "ibm" #define TPACPI_ACPI_EVENT_PREFIX "ibm" #define TPACPI_DRVR_NAME TPACPI_FILE #define TPACPI_DRVR_SHORTNAME "tpacpi" #define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon" #define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd" #define TPACPI_WORKQUEUE_NAME "ktpacpid" #define TPACPI_MAX_ACPI_ARGS 3 /* Debugging printk groups */ #define TPACPI_DBG_ALL 0xffff #define TPACPI_DBG_DISCLOSETASK 0x8000 #define TPACPI_DBG_INIT 0x0001 #define TPACPI_DBG_EXIT 0x0002 #define TPACPI_DBG_RFKILL 0x0004 #define TPACPI_DBG_HKEY 0x0008 #define TPACPI_DBG_FAN 0x0010 #define TPACPI_DBG_BRGHT 0x0020 #define TPACPI_DBG_MIXER 0x0040 #define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off") #define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled") #define strlencmp(a, b) (strncmp((a), (b), strlen(b))) /**************************************************************************** * Driver-wide structs and misc. variables */ struct ibm_struct; struct tp_acpi_drv_struct { <------>const struct acpi_device_id *hid; <------>struct acpi_driver *driver; <------>void (*notify) (struct ibm_struct *, u32); <------>acpi_handle *handle; <------>u32 type; <------>struct acpi_device *device; }; struct ibm_struct { <------>char *name; <------>int (*read) (struct seq_file *); <------>int (*write) (char *); <------>void (*exit) (void); <------>void (*resume) (void); <------>void (*suspend) (void); <------>void (*shutdown) (void); <------>struct list_head all_drivers; <------>struct tp_acpi_drv_struct *acpi; <------>struct { <------><------>u8 acpi_driver_registered:1; <------><------>u8 acpi_notify_installed:1; <------><------>u8 proc_created:1; <------><------>u8 init_called:1; <------><------>u8 experimental:1; <------>} flags; }; struct ibm_init_struct { <------>char param[32]; <------>int (*init) (struct ibm_init_struct *); <------>umode_t base_procfs_mode; <------>struct ibm_struct *data; }; static struct { <------>u32 bluetooth:1; <------>u32 hotkey:1; <------>u32 hotkey_mask:1; <------>u32 hotkey_wlsw:1; <------>enum { <------><------>TP_HOTKEY_TABLET_NONE = 0, <------><------>TP_HOTKEY_TABLET_USES_MHKG, <------><------>TP_HOTKEY_TABLET_USES_GMMS, <------>} hotkey_tablet; <------>u32 kbdlight:1; <------>u32 light:1; <------>u32 light_status:1; <------>u32 bright_acpimode:1; <------>u32 bright_unkfw:1; <------>u32 wan:1; <------>u32 uwb:1; <------>u32 fan_ctrl_status_undef:1; <------>u32 second_fan:1; <------>u32 second_fan_ctl:1; <------>u32 beep_needs_two_args:1; <------>u32 mixer_no_level_control:1; <------>u32 battery_force_primary:1; <------>u32 input_device_registered:1; <------>u32 platform_drv_registered:1; <------>u32 platform_drv_attrs_registered:1; <------>u32 sensors_pdrv_registered:1; <------>u32 sensors_pdrv_attrs_registered:1; <------>u32 sensors_pdev_attrs_registered:1; <------>u32 hotkey_poll_active:1; <------>u32 has_adaptive_kbd:1; } tp_features; static struct { <------>u16 hotkey_mask_ff:1; <------>u16 volume_ctrl_forbidden:1; } tp_warned; struct thinkpad_id_data { <------>unsigned int vendor; /* ThinkPad vendor: <------><------><------><------> * PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */ <------>char *bios_version_str; /* Something like 1ZET51WW (1.03z) */ <------>char *ec_version_str; /* Something like 1ZHT51WW-1.04a */ <------>u32 bios_model; /* 1Y = 0x3159, 0 = unknown */ <------>u32 ec_model; <------>u16 bios_release; /* 1ZETK1WW = 0x4b31, 0 = unknown */ <------>u16 ec_release; <------>char *model_str; /* ThinkPad T43 */ <------>char *nummodel_str; /* 9384A9C for a 9384-A9C model */ }; static struct thinkpad_id_data thinkpad_id; static enum { <------>TPACPI_LIFE_INIT = 0, <------>TPACPI_LIFE_RUNNING, <------>TPACPI_LIFE_EXITING, } tpacpi_lifecycle; static int experimental; static u32 dbg_level; static struct workqueue_struct *tpacpi_wq; enum led_status_t { <------>TPACPI_LED_OFF = 0, <------>TPACPI_LED_ON, <------>TPACPI_LED_BLINK, }; /* tpacpi LED class */ struct tpacpi_led_classdev { <------>struct led_classdev led_classdev; <------>int led; }; /* brightness level capabilities */ static unsigned int bright_maxlvl; /* 0 = unknown */ #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES static int dbg_wlswemul; static bool tpacpi_wlsw_emulstate; static int dbg_bluetoothemul; static bool tpacpi_bluetooth_emulstate; static int dbg_wwanemul; static bool tpacpi_wwan_emulstate; static int dbg_uwbemul; static bool tpacpi_uwb_emulstate; #endif /************************************************************************* * Debugging helpers */ #define dbg_printk(a_dbg_level, format, arg...) \ do { \ <------>if (dbg_level & (a_dbg_level)) \ <------><------>printk(KERN_DEBUG pr_fmt("%s: " format), \ <------><------> __func__, ##arg); \ } while (0) #ifdef CONFIG_THINKPAD_ACPI_DEBUG #define vdbg_printk dbg_printk static const char *str_supported(int is_supported); #else static inline const char *str_supported(int is_supported) { return ""; } #define vdbg_printk(a_dbg_level, format, arg...) \ <------>do { if (0) no_printk(format, ##arg); } while (0) #endif static void tpacpi_log_usertask(const char * const what) { <------>printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"), <------> what, task_tgid_vnr(current)); } #define tpacpi_disclose_usertask(what, format, arg...) \ do { \ <------>if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \ <------><------> (tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \ <------><------>printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \ <------><------> what, task_tgid_vnr(current), ## arg); \ <------>} \ } while (0) /* * Quirk handling helpers * * ThinkPad IDs and versions seen in the field so far are * two or three characters from the set [0-9A-Z], i.e. base 36. * * We use values well outside that range as specials. */ #define TPACPI_MATCH_ANY 0xffffffffU #define TPACPI_MATCH_ANY_VERSION 0xffffU #define TPACPI_MATCH_UNKNOWN 0U /* TPID('1', 'Y') == 0x3159 */ #define TPID(__c1, __c2) (((__c1) << 8) | (__c2)) #define TPID3(__c1, __c2, __c3) (((__c1) << 16) | ((__c2) << 8) | (__c3)) #define TPVER TPID #define TPACPI_Q_IBM(__id1, __id2, __quirk) \ <------>{ .vendor = PCI_VENDOR_ID_IBM, \ <------> .bios = TPID(__id1, __id2), \ <------> .ec = TPACPI_MATCH_ANY, \ <------> .quirks = (__quirk) } #define TPACPI_Q_LNV(__id1, __id2, __quirk) \ <------>{ .vendor = PCI_VENDOR_ID_LENOVO, \ <------> .bios = TPID(__id1, __id2), \ <------> .ec = TPACPI_MATCH_ANY, \ <------> .quirks = (__quirk) } #define TPACPI_Q_LNV3(__id1, __id2, __id3, __quirk) \ <------>{ .vendor = PCI_VENDOR_ID_LENOVO, \ <------> .bios = TPID3(__id1, __id2, __id3), \ <------> .ec = TPACPI_MATCH_ANY, \ <------> .quirks = (__quirk) } #define TPACPI_QEC_IBM(__id1, __id2, __quirk) \ <------>{ .vendor = PCI_VENDOR_ID_IBM, \ <------> .bios = TPACPI_MATCH_ANY, \ <------> .ec = TPID(__id1, __id2), \ <------> .quirks = (__quirk) } #define TPACPI_QEC_LNV(__id1, __id2, __quirk) \ <------>{ .vendor = PCI_VENDOR_ID_LENOVO, \ <------> .bios = TPACPI_MATCH_ANY, \ <------> .ec = TPID(__id1, __id2), \ <------> .quirks = (__quirk) } struct tpacpi_quirk { <------>unsigned int vendor; <------>u32 bios; <------>u32 ec; <------>unsigned long quirks; }; /** * tpacpi_check_quirks() - search BIOS/EC version on a list * @qlist: array of &struct tpacpi_quirk * @qlist_size: number of elements in @qlist * * Iterates over a quirks list until one is found that matches the * ThinkPad's vendor, BIOS and EC model. * * Returns 0 if nothing matches, otherwise returns the quirks field of * the matching &struct tpacpi_quirk entry. * * The match criteria is: vendor, ec and bios much match. */ static unsigned long __init tpacpi_check_quirks( <------><------><------>const struct tpacpi_quirk *qlist, <------><------><------>unsigned int qlist_size) { <------>while (qlist_size) { <------><------>if ((qlist->vendor == thinkpad_id.vendor || <------><------><------><------>qlist->vendor == TPACPI_MATCH_ANY) && <------><------> (qlist->bios == thinkpad_id.bios_model || <------><------><------><------>qlist->bios == TPACPI_MATCH_ANY) && <------><------> (qlist->ec == thinkpad_id.ec_model || <------><------><------><------>qlist->ec == TPACPI_MATCH_ANY)) <------><------><------>return qlist->quirks; <------><------>qlist_size--; <------><------>qlist++; <------>} <------>return 0; } static inline bool __pure __init tpacpi_is_lenovo(void) { <------>return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO; } static inline bool __pure __init tpacpi_is_ibm(void) { <------>return thinkpad_id.vendor == PCI_VENDOR_ID_IBM; } /**************************************************************************** **************************************************************************** * * ACPI Helpers and device model * **************************************************************************** ****************************************************************************/ /************************************************************************* * ACPI basic handles */ static acpi_handle root_handle; static acpi_handle ec_handle; #define TPACPI_HANDLE(object, parent, paths...) \ <------>static acpi_handle object##_handle; \ <------>static const acpi_handle * const object##_parent __initconst = \ <------><------><------><------><------><------>&parent##_handle; \ <------>static char *object##_paths[] __initdata = { paths } TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */ TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */ TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */ <------><------><------><------><------>/* T4x, X31, X40 */ <------> "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */ <------> "\\CMS", /* R40, R40e */ <------> ); /* all others */ TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */ <------> "^HKEY", /* R30, R31 */ <------> "HKEY", /* all others */ <------> ); /* 570 */ /************************************************************************* * ACPI helpers */ static int acpi_evalf(acpi_handle handle, <------><------> int *res, char *method, char *fmt, ...) { <------>char *fmt0 = fmt; <------>struct acpi_object_list params; <------>union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS]; <------>struct acpi_buffer result, *resultp; <------>union acpi_object out_obj; <------>acpi_status status; <------>va_list ap; <------>char res_type; <------>int success; <------>int quiet; <------>if (!*fmt) { <------><------>pr_err("acpi_evalf() called with empty format\n"); <------><------>return 0; <------>} <------>if (*fmt == 'q') { <------><------>quiet = 1; <------><------>fmt++; <------>} else <------><------>quiet = 0; <------>res_type = *(fmt++); <------>params.count = 0; <------>params.pointer = &in_objs[0]; <------>va_start(ap, fmt); <------>while (*fmt) { <------><------>char c = *(fmt++); <------><------>switch (c) { <------><------>case 'd': /* int */ <------><------><------>in_objs[params.count].integer.value = va_arg(ap, int); <------><------><------>in_objs[params.count++].type = ACPI_TYPE_INTEGER; <------><------><------>break; <------><------><------>/* add more types as needed */ <------><------>default: <------><------><------>pr_err("acpi_evalf() called with invalid format character '%c'\n", <------><------><------> c); <------><------><------>va_end(ap); <------><------><------>return 0; <------><------>} <------>} <------>va_end(ap); <------>if (res_type != 'v') { <------><------>result.length = sizeof(out_obj); <------><------>result.pointer = &out_obj; <------><------>resultp = &result; <------>} else <------><------>resultp = NULL; <------>status = acpi_evaluate_object(handle, method, ¶ms, resultp); <------>switch (res_type) { <------>case 'd': /* int */ <------><------>success = (status == AE_OK && <------><------><------> out_obj.type == ACPI_TYPE_INTEGER); <------><------>if (success && res) <------><------><------>*res = out_obj.integer.value; <------><------>break; <------>case 'v': /* void */ <------><------>success = status == AE_OK; <------><------>break; <------><------>/* add more types as needed */ <------>default: <------><------>pr_err("acpi_evalf() called with invalid format character '%c'\n", <------><------> res_type); <------><------>return 0; <------>} <------>if (!success && !quiet) <------><------>pr_err("acpi_evalf(%s, %s, ...) failed: %s\n", <------><------> method, fmt0, acpi_format_exception(status)); <------>return success; } static int acpi_ec_read(int i, u8 *p) { <------>int v; <------>if (ecrd_handle) { <------><------>if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i)) <------><------><------>return 0; <------><------>*p = v; <------>} else { <------><------>if (ec_read(i, p) < 0) <------><------><------>return 0; <------>} <------>return 1; } static int acpi_ec_write(int i, u8 v) { <------>if (ecwr_handle) { <------><------>if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v)) <------><------><------>return 0; <------>} else { <------><------>if (ec_write(i, v) < 0) <------><------><------>return 0; <------>} <------>return 1; } static int issue_thinkpad_cmos_command(int cmos_cmd) { <------>if (!cmos_handle) <------><------>return -ENXIO; <------>if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd)) <------><------>return -EIO; <------>return 0; } /************************************************************************* * ACPI device model */ #define TPACPI_ACPIHANDLE_INIT(object) \ <------>drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \ <------><------>object##_paths, ARRAY_SIZE(object##_paths)) static void __init drv_acpi_handle_init(const char *name, <------><------><------> acpi_handle *handle, const acpi_handle parent, <------><------><------> char **paths, const int num_paths) { <------>int i; <------>acpi_status status; <------>vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n", <------><------>name); <------>for (i = 0; i < num_paths; i++) { <------><------>status = acpi_get_handle(parent, paths[i], handle); <------><------>if (ACPI_SUCCESS(status)) { <------><------><------>dbg_printk(TPACPI_DBG_INIT, <------><------><------><------> "Found ACPI handle %s for %s\n", <------><------><------><------> paths[i], name); <------><------><------>return; <------><------>} <------>} <------>vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n", <------><------> name); <------>*handle = NULL; } static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle, <------><------><------>u32 level, void *context, void **return_value) { <------>struct acpi_device *dev; <------>if (!strcmp(context, "video")) { <------><------>if (acpi_bus_get_device(handle, &dev)) <------><------><------>return AE_OK; <------><------>if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev))) <------><------><------>return AE_OK; <------>} <------>*(acpi_handle *)return_value = handle; <------>return AE_CTRL_TERMINATE; } static void __init tpacpi_acpi_handle_locate(const char *name, <------><------>const char *hid, <------><------>acpi_handle *handle) { <------>acpi_status status; <------>acpi_handle device_found; <------>BUG_ON(!name || !handle); <------>vdbg_printk(TPACPI_DBG_INIT, <------><------><------>"trying to locate ACPI handle for %s, using HID %s\n", <------><------><------>name, hid ? hid : "NULL"); <------>memset(&device_found, 0, sizeof(device_found)); <------>status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback, <------><------><------><------> (void *)name, &device_found); <------>*handle = NULL; <------>if (ACPI_SUCCESS(status)) { <------><------>*handle = device_found; <------><------>dbg_printk(TPACPI_DBG_INIT, <------><------><------> "Found ACPI handle for %s\n", name); <------>} else { <------><------>vdbg_printk(TPACPI_DBG_INIT, <------><------><------> "Could not locate an ACPI handle for %s: %s\n", <------><------><------> name, acpi_format_exception(status)); <------>} } static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data) { <------>struct ibm_struct *ibm = data; <------>if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) <------><------>return; <------>if (!ibm || !ibm->acpi || !ibm->acpi->notify) <------><------>return; <------>ibm->acpi->notify(ibm, event); } static int __init setup_acpi_notify(struct ibm_struct *ibm) { <------>acpi_status status; <------>int rc; <------>BUG_ON(!ibm->acpi); <------>if (!*ibm->acpi->handle) <------><------>return 0; <------>vdbg_printk(TPACPI_DBG_INIT, <------><------>"setting up ACPI notify for %s\n", ibm->name); <------>rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device); <------>if (rc < 0) { <------><------>pr_err("acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc); <------><------>return -ENODEV; <------>} <------>ibm->acpi->device->driver_data = ibm; <------>sprintf(acpi_device_class(ibm->acpi->device), "%s/%s", <------><------>TPACPI_ACPI_EVENT_PREFIX, <------><------>ibm->name); <------>status = acpi_install_notify_handler(*ibm->acpi->handle, <------><------><------>ibm->acpi->type, dispatch_acpi_notify, ibm); <------>if (ACPI_FAILURE(status)) { <------><------>if (status == AE_ALREADY_EXISTS) { <------><------><------>pr_notice("another device driver is already handling %s events\n", <------><------><------><------> ibm->name); <------><------>} else { <------><------><------>pr_err("acpi_install_notify_handler(%s) failed: %s\n", <------><------><------> ibm->name, acpi_format_exception(status)); <------><------>} <------><------>return -ENODEV; <------>} <------>ibm->flags.acpi_notify_installed = 1; <------>return 0; } static int __init tpacpi_device_add(struct acpi_device *device) { <------>return 0; } static int __init register_tpacpi_subdriver(struct ibm_struct *ibm) { <------>int rc; <------>dbg_printk(TPACPI_DBG_INIT, <------><------>"registering %s as an ACPI driver\n", ibm->name); <------>BUG_ON(!ibm->acpi); <------>ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL); <------>if (!ibm->acpi->driver) { <------><------>pr_err("failed to allocate memory for ibm->acpi->driver\n"); <------><------>return -ENOMEM; <------>} <------>sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name); <------>ibm->acpi->driver->ids = ibm->acpi->hid; <------>ibm->acpi->driver->ops.add = &tpacpi_device_add; <------>rc = acpi_bus_register_driver(ibm->acpi->driver); <------>if (rc < 0) { <------><------>pr_err("acpi_bus_register_driver(%s) failed: %d\n", <------><------> ibm->name, rc); <------><------>kfree(ibm->acpi->driver); <------><------>ibm->acpi->driver = NULL; <------>} else if (!rc) <------><------>ibm->flags.acpi_driver_registered = 1; <------>return rc; } /**************************************************************************** **************************************************************************** * * Procfs Helpers * **************************************************************************** ****************************************************************************/ static int dispatch_proc_show(struct seq_file *m, void *v) { <------>struct ibm_struct *ibm = m->private; <------>if (!ibm || !ibm->read) <------><------>return -EINVAL; <------>return ibm->read(m); } static int dispatch_proc_open(struct inode *inode, struct file *file) { <------>return single_open(file, dispatch_proc_show, PDE_DATA(inode)); } static ssize_t dispatch_proc_write(struct file *file, <------><------><------>const char __user *userbuf, <------><------><------>size_t count, loff_t *pos) { <------>struct ibm_struct *ibm = PDE_DATA(file_inode(file)); <------>char *kernbuf; <------>int ret; <------>if (!ibm || !ibm->write) <------><------>return -EINVAL; <------>if (count > PAGE_SIZE - 1) <------><------>return -EINVAL; <------>kernbuf = kmalloc(count + 1, GFP_KERNEL); <------>if (!kernbuf) <------><------>return -ENOMEM; <------>if (copy_from_user(kernbuf, userbuf, count)) { <------><------>kfree(kernbuf); <------><------>return -EFAULT; <------>} <------>kernbuf[count] = 0; <------>ret = ibm->write(kernbuf); <------>if (ret == 0) <------><------>ret = count; <------>kfree(kernbuf); <------>return ret; } static const struct proc_ops dispatch_proc_ops = { <------>.proc_open = dispatch_proc_open, <------>.proc_read = seq_read, <------>.proc_lseek = seq_lseek, <------>.proc_release = single_release, <------>.proc_write = dispatch_proc_write, }; /**************************************************************************** **************************************************************************** * * Device model: input, hwmon and platform * **************************************************************************** ****************************************************************************/ static struct platform_device *tpacpi_pdev; static struct platform_device *tpacpi_sensors_pdev; static struct device *tpacpi_hwmon; static struct input_dev *tpacpi_inputdev; static struct mutex tpacpi_inputdev_send_mutex; static LIST_HEAD(tpacpi_all_drivers); #ifdef CONFIG_PM_SLEEP static int tpacpi_suspend_handler(struct device *dev) { <------>struct ibm_struct *ibm, *itmp; <------>list_for_each_entry_safe(ibm, itmp, <------><------><------><------> &tpacpi_all_drivers, <------><------><------><------> all_drivers) { <------><------>if (ibm->suspend) <------><------><------>(ibm->suspend)(); <------>} <------>return 0; } static int tpacpi_resume_handler(struct device *dev) { <------>struct ibm_struct *ibm, *itmp; <------>list_for_each_entry_safe(ibm, itmp, <------><------><------><------> &tpacpi_all_drivers, <------><------><------><------> all_drivers) { <------><------>if (ibm->resume) <------><------><------>(ibm->resume)(); <------>} <------>return 0; } #endif static SIMPLE_DEV_PM_OPS(tpacpi_pm, <------><------><------> tpacpi_suspend_handler, tpacpi_resume_handler); static void tpacpi_shutdown_handler(struct platform_device *pdev) { <------>struct ibm_struct *ibm, *itmp; <------>list_for_each_entry_safe(ibm, itmp, <------><------><------><------> &tpacpi_all_drivers, <------><------><------><------> all_drivers) { <------><------>if (ibm->shutdown) <------><------><------>(ibm->shutdown)(); <------>} } static struct platform_driver tpacpi_pdriver = { <------>.driver = { <------><------>.name = TPACPI_DRVR_NAME, <------><------>.pm = &tpacpi_pm, <------>}, <------>.shutdown = tpacpi_shutdown_handler, }; static struct platform_driver tpacpi_hwmon_pdriver = { <------>.driver = { <------><------>.name = TPACPI_HWMON_DRVR_NAME, <------>}, }; /************************************************************************* * sysfs support helpers */ struct attribute_set { <------>unsigned int members, max_members; <------>struct attribute_group group; }; struct attribute_set_obj { <------>struct attribute_set s; <------>struct attribute *a; } __attribute__((packed)); static struct attribute_set *create_attr_set(unsigned int max_members, <------><------><------><------><------><------>const char *name) { <------>struct attribute_set_obj *sobj; <------>if (max_members == 0) <------><------>return NULL; <------>/* Allocates space for implicit NULL at the end too */ <------>sobj = kzalloc(sizeof(struct attribute_set_obj) + <------><------> max_members * sizeof(struct attribute *), <------><------> GFP_KERNEL); <------>if (!sobj) <------><------>return NULL; <------>sobj->s.max_members = max_members; <------>sobj->s.group.attrs = &sobj->a; <------>sobj->s.group.name = name; <------>return &sobj->s; } #define destroy_attr_set(_set) \ <------>kfree(_set); /* not multi-threaded safe, use it in a single thread per set */ static int add_to_attr_set(struct attribute_set *s, struct attribute *attr) { <------>if (!s || !attr) <------><------>return -EINVAL; <------>if (s->members >= s->max_members) <------><------>return -ENOMEM; <------>s->group.attrs[s->members] = attr; <------>s->members++; <------>return 0; } static int add_many_to_attr_set(struct attribute_set *s, <------><------><------>struct attribute **attr, <------><------><------>unsigned int count) { <------>int i, res; <------>for (i = 0; i < count; i++) { <------><------>res = add_to_attr_set(s, attr[i]); <------><------>if (res) <------><------><------>return res; <------>} <------>return 0; } static void delete_attr_set(struct attribute_set *s, struct kobject *kobj) { <------>sysfs_remove_group(kobj, &s->group); <------>destroy_attr_set(s); } #define register_attr_set_with_sysfs(_attr_set, _kobj) \ <------>sysfs_create_group(_kobj, &_attr_set->group) static int parse_strtoul(const char *buf, <------><------>unsigned long max, unsigned long *value) { <------>char *endp; <------>*value = simple_strtoul(skip_spaces(buf), &endp, 0); <------>endp = skip_spaces(endp); <------>if (*endp || *value > max) <------><------>return -EINVAL; <------>return 0; } static void tpacpi_disable_brightness_delay(void) { <------>if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0)) <------><------>pr_notice("ACPI backlight control delay disabled\n"); } static void printk_deprecated_attribute(const char * const what, <------><------><------><------><------>const char * const details) { <------>tpacpi_log_usertask("deprecated sysfs attribute"); <------>pr_warn("WARNING: sysfs attribute %s is deprecated and will be removed. %s\n", <------><------>what, details); } /************************************************************************* * rfkill and radio control support helpers */ /* * ThinkPad-ACPI firmware handling model: * * WLSW (master wireless switch) is event-driven, and is common to all * firmware-controlled radios. It cannot be controlled, just monitored, * as expected. It overrides all radio state in firmware * * The kernel, a masked-off hotkey, and WLSW can change the radio state * (TODO: verify how WLSW interacts with the returned radio state). * * The only time there are shadow radio state changes, is when * masked-off hotkeys are used. */ /* * Internal driver API for radio state: * * int: < 0 = error, otherwise enum tpacpi_rfkill_state * bool: true means radio blocked (off) */ enum tpacpi_rfkill_state { <------>TPACPI_RFK_RADIO_OFF = 0, <------>TPACPI_RFK_RADIO_ON }; /* rfkill switches */ enum tpacpi_rfk_id { <------>TPACPI_RFK_BLUETOOTH_SW_ID = 0, <------>TPACPI_RFK_WWAN_SW_ID, <------>TPACPI_RFK_UWB_SW_ID, <------>TPACPI_RFK_SW_MAX }; static const char *tpacpi_rfkill_names[] = { <------>[TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth", <------>[TPACPI_RFK_WWAN_SW_ID] = "wwan", <------>[TPACPI_RFK_UWB_SW_ID] = "uwb", <------>[TPACPI_RFK_SW_MAX] = NULL }; /* ThinkPad-ACPI rfkill subdriver */ struct tpacpi_rfk { <------>struct rfkill *rfkill; <------>enum tpacpi_rfk_id id; <------>const struct tpacpi_rfk_ops *ops; }; struct tpacpi_rfk_ops { <------>/* firmware interface */ <------>int (*get_status)(void); <------>int (*set_status)(const enum tpacpi_rfkill_state); }; static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX]; /* Query FW and update rfkill sw state for a given rfkill switch */ static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk) { <------>int status; <------>if (!tp_rfk) <------><------>return -ENODEV; <------>status = (tp_rfk->ops->get_status)(); <------>if (status < 0) <------><------>return status; <------>rfkill_set_sw_state(tp_rfk->rfkill, <------><------><------> (status == TPACPI_RFK_RADIO_OFF)); <------>return status; } /* * Sync the HW-blocking state of all rfkill switches, * do notice it causes the rfkill core to schedule uevents */ static void tpacpi_rfk_update_hwblock_state(bool blocked) { <------>unsigned int i; <------>struct tpacpi_rfk *tp_rfk; <------>for (i = 0; i < TPACPI_RFK_SW_MAX; i++) { <------><------>tp_rfk = tpacpi_rfkill_switches[i]; <------><------>if (tp_rfk) { <------><------><------>if (rfkill_set_hw_state(tp_rfk->rfkill, <------><------><------><------><------><------>blocked)) { <------><------><------><------>/* ignore -- we track sw block */ <------><------><------>} <------><------>} <------>} } /* Call to get the WLSW state from the firmware */ static int hotkey_get_wlsw(void); /* Call to query WLSW state and update all rfkill switches */ static bool tpacpi_rfk_check_hwblock_state(void) { <------>int res = hotkey_get_wlsw(); <------>int hw_blocked; <------>/* When unknown or unsupported, we have to assume it is unblocked */ <------>if (res < 0) <------><------>return false; <------>hw_blocked = (res == TPACPI_RFK_RADIO_OFF); <------>tpacpi_rfk_update_hwblock_state(hw_blocked); <------>return hw_blocked; } static int tpacpi_rfk_hook_set_block(void *data, bool blocked) { <------>struct tpacpi_rfk *tp_rfk = data; <------>int res; <------>dbg_printk(TPACPI_DBG_RFKILL, <------><------> "request to change radio state to %s\n", <------><------> blocked ? "blocked" : "unblocked"); <------>/* try to set radio state */ <------>res = (tp_rfk->ops->set_status)(blocked ? <------><------><------><------>TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON); <------>/* and update the rfkill core with whatever the FW really did */ <------>tpacpi_rfk_update_swstate(tp_rfk); <------>return (res < 0) ? res : 0; } static const struct rfkill_ops tpacpi_rfk_rfkill_ops = { <------>.set_block = tpacpi_rfk_hook_set_block, }; static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id, <------><------><------>const struct tpacpi_rfk_ops *tp_rfkops, <------><------><------>const enum rfkill_type rfktype, <------><------><------>const char *name, <------><------><------>const bool set_default) { <------>struct tpacpi_rfk *atp_rfk; <------>int res; <------>bool sw_state = false; <------>bool hw_state; <------>int sw_status; <------>BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]); <------>atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL); <------>if (atp_rfk) <------><------>atp_rfk->rfkill = rfkill_alloc(name, <------><------><------><------><------><------>&tpacpi_pdev->dev, <------><------><------><------><------><------>rfktype, <------><------><------><------><------><------>&tpacpi_rfk_rfkill_ops, <------><------><------><------><------><------>atp_rfk); <------>if (!atp_rfk || !atp_rfk->rfkill) { <------><------>pr_err("failed to allocate memory for rfkill class\n"); <------><------>kfree(atp_rfk); <------><------>return -ENOMEM; <------>} <------>atp_rfk->id = id; <------>atp_rfk->ops = tp_rfkops; <------>sw_status = (tp_rfkops->get_status)(); <------>if (sw_status < 0) { <------><------>pr_err("failed to read initial state for %s, error %d\n", <------><------> name, sw_status); <------>} else { <------><------>sw_state = (sw_status == TPACPI_RFK_RADIO_OFF); <------><------>if (set_default) { <------><------><------>/* try to keep the initial state, since we ask the <------><------><------> * firmware to preserve it across S5 in NVRAM */ <------><------><------>rfkill_init_sw_state(atp_rfk->rfkill, sw_state); <------><------>} <------>} <------>hw_state = tpacpi_rfk_check_hwblock_state(); <------>rfkill_set_hw_state(atp_rfk->rfkill, hw_state); <------>res = rfkill_register(atp_rfk->rfkill); <------>if (res < 0) { <------><------>pr_err("failed to register %s rfkill switch: %d\n", name, res); <------><------>rfkill_destroy(atp_rfk->rfkill); <------><------>kfree(atp_rfk); <------><------>return res; <------>} <------>tpacpi_rfkill_switches[id] = atp_rfk; <------>pr_info("rfkill switch %s: radio is %sblocked\n", <------><------>name, (sw_state || hw_state) ? "" : "un"); <------>return 0; } static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id) { <------>struct tpacpi_rfk *tp_rfk; <------>BUG_ON(id >= TPACPI_RFK_SW_MAX); <------>tp_rfk = tpacpi_rfkill_switches[id]; <------>if (tp_rfk) { <------><------>rfkill_unregister(tp_rfk->rfkill); <------><------>rfkill_destroy(tp_rfk->rfkill); <------><------>tpacpi_rfkill_switches[id] = NULL; <------><------>kfree(tp_rfk); <------>} } static void printk_deprecated_rfkill_attribute(const char * const what) { <------>printk_deprecated_attribute(what, <------><------><------>"Please switch to generic rfkill before year 2010"); } /* sysfs <radio> enable ------------------------------------------------ */ static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id, <------><------><------><------><------> struct device_attribute *attr, <------><------><------><------><------> char *buf) { <------>int status; <------>printk_deprecated_rfkill_attribute(attr->attr.name); <------>/* This is in the ABI... */ <------>if (tpacpi_rfk_check_hwblock_state()) { <------><------>status = TPACPI_RFK_RADIO_OFF; <------>} else { <------><------>status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); <------><------>if (status < 0) <------><------><------>return status; <------>} <------>return snprintf(buf, PAGE_SIZE, "%d\n", <------><------><------>(status == TPACPI_RFK_RADIO_ON) ? 1 : 0); } static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id, <------><------><------> struct device_attribute *attr, <------><------><------> const char *buf, size_t count) { <------>unsigned long t; <------>int res; <------>printk_deprecated_rfkill_attribute(attr->attr.name); <------>if (parse_strtoul(buf, 1, &t)) <------><------>return -EINVAL; <------>tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t); <------>/* This is in the ABI... */ <------>if (tpacpi_rfk_check_hwblock_state() && !!t) <------><------>return -EPERM; <------>res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ? <------><------><------><------>TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF); <------>tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); <------>return (res < 0) ? res : count; } /* procfs -------------------------------------------------------------- */ static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m) { <------>if (id >= TPACPI_RFK_SW_MAX) <------><------>seq_printf(m, "status:\t\tnot supported\n"); <------>else { <------><------>int status; <------><------>/* This is in the ABI... */ <------><------>if (tpacpi_rfk_check_hwblock_state()) { <------><------><------>status = TPACPI_RFK_RADIO_OFF; <------><------>} else { <------><------><------>status = tpacpi_rfk_update_swstate( <------><------><------><------><------><------>tpacpi_rfkill_switches[id]); <------><------><------>if (status < 0) <------><------><------><------>return status; <------><------>} <------><------>seq_printf(m, "status:\t\t%s\n", <------><------><------><------>(status == TPACPI_RFK_RADIO_ON) ? <------><------><------><------><------>"enabled" : "disabled"); <------><------>seq_printf(m, "commands:\tenable, disable\n"); <------>} <------>return 0; } static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf) { <------>char *cmd; <------>int status = -1; <------>int res = 0; <------>if (id >= TPACPI_RFK_SW_MAX) <------><------>return -ENODEV; <------>while ((cmd = strsep(&buf, ","))) { <------><------>if (strlencmp(cmd, "enable") == 0) <------><------><------>status = TPACPI_RFK_RADIO_ON; <------><------>else if (strlencmp(cmd, "disable") == 0) <------><------><------>status = TPACPI_RFK_RADIO_OFF; <------><------>else <------><------><------>return -EINVAL; <------>} <------>if (status != -1) { <------><------>tpacpi_disclose_usertask("procfs", "attempt to %s %s\n", <------><------><------><------>(status == TPACPI_RFK_RADIO_ON) ? <------><------><------><------><------><------>"enable" : "disable", <------><------><------><------>tpacpi_rfkill_names[id]); <------><------>res = (tpacpi_rfkill_switches[id]->ops->set_status)(status); <------><------>tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]); <------>} <------>return res; } /************************************************************************* * thinkpad-acpi driver attributes */ /* interface_version --------------------------------------------------- */ static ssize_t interface_version_show(struct device_driver *drv, char *buf) { <------>return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION); } static DRIVER_ATTR_RO(interface_version); /* debug_level --------------------------------------------------------- */ static ssize_t debug_level_show(struct device_driver *drv, char *buf) { <------>return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level); } static ssize_t debug_level_store(struct device_driver *drv, const char *buf, <------><------><------><------> size_t count) { <------>unsigned long t; <------>if (parse_strtoul(buf, 0xffff, &t)) <------><------>return -EINVAL; <------>dbg_level = t; <------>return count; } static DRIVER_ATTR_RW(debug_level); /* version ------------------------------------------------------------- */ static ssize_t version_show(struct device_driver *drv, char *buf) { <------>return snprintf(buf, PAGE_SIZE, "%s v%s\n", <------><------><------>TPACPI_DESC, TPACPI_VERSION); } static DRIVER_ATTR_RO(version); /* --------------------------------------------------------------------- */ #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES /* wlsw_emulstate ------------------------------------------------------ */ static ssize_t wlsw_emulstate_show(struct device_driver *drv, char *buf) { <------>return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate); } static ssize_t wlsw_emulstate_store(struct device_driver *drv, const char *buf, <------><------><------><------> size_t count) { <------>unsigned long t; <------>if (parse_strtoul(buf, 1, &t)) <------><------>return -EINVAL; <------>if (tpacpi_wlsw_emulstate != !!t) { <------><------>tpacpi_wlsw_emulstate = !!t; <------><------>tpacpi_rfk_update_hwblock_state(!t); /* negative logic */ <------>} <------>return count; } static DRIVER_ATTR_RW(wlsw_emulstate); /* bluetooth_emulstate ------------------------------------------------- */ static ssize_t bluetooth_emulstate_show(struct device_driver *drv, char *buf) { <------>return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate); } static ssize_t bluetooth_emulstate_store(struct device_driver *drv, <------><------><------><------><------> const char *buf, size_t count) { <------>unsigned long t; <------>if (parse_strtoul(buf, 1, &t)) <------><------>return -EINVAL; <------>tpacpi_bluetooth_emulstate = !!t; <------>return count; } static DRIVER_ATTR_RW(bluetooth_emulstate); /* wwan_emulstate ------------------------------------------------- */ static ssize_t wwan_emulstate_show(struct device_driver *drv, char *buf) { <------>return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate); } static ssize_t wwan_emulstate_store(struct device_driver *drv, const char *buf, <------><------><------><------> size_t count) { <------>unsigned long t; <------>if (parse_strtoul(buf, 1, &t)) <------><------>return -EINVAL; <------>tpacpi_wwan_emulstate = !!t; <------>return count; } static DRIVER_ATTR_RW(wwan_emulstate); /* uwb_emulstate ------------------------------------------------- */ static ssize_t uwb_emulstate_show(struct device_driver *drv, char *buf) { <------>return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate); } static ssize_t uwb_emulstate_store(struct device_driver *drv, const char *buf, <------><------><------><------> size_t count) { <------>unsigned long t; <------>if (parse_strtoul(buf, 1, &t)) <------><------>return -EINVAL; <------>tpacpi_uwb_emulstate = !!t; <------>return count; } static DRIVER_ATTR_RW(uwb_emulstate); #endif /* --------------------------------------------------------------------- */ static struct driver_attribute *tpacpi_driver_attributes[] = { <------>&driver_attr_debug_level, &driver_attr_version, <------>&driver_attr_interface_version, }; static int __init tpacpi_create_driver_attributes(struct device_driver *drv) { <------>int i, res; <------>i = 0; <------>res = 0; <------>while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) { <------><------>res = driver_create_file(drv, tpacpi_driver_attributes[i]); <------><------>i++; <------>} #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (!res && dbg_wlswemul) <------><------>res = driver_create_file(drv, &driver_attr_wlsw_emulstate); <------>if (!res && dbg_bluetoothemul) <------><------>res = driver_create_file(drv, &driver_attr_bluetooth_emulstate); <------>if (!res && dbg_wwanemul) <------><------>res = driver_create_file(drv, &driver_attr_wwan_emulstate); <------>if (!res && dbg_uwbemul) <------><------>res = driver_create_file(drv, &driver_attr_uwb_emulstate); #endif <------>return res; } static void tpacpi_remove_driver_attributes(struct device_driver *drv) { <------>int i; <------>for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++) <------><------>driver_remove_file(drv, tpacpi_driver_attributes[i]); #ifdef THINKPAD_ACPI_DEBUGFACILITIES <------>driver_remove_file(drv, &driver_attr_wlsw_emulstate); <------>driver_remove_file(drv, &driver_attr_bluetooth_emulstate); <------>driver_remove_file(drv, &driver_attr_wwan_emulstate); <------>driver_remove_file(drv, &driver_attr_uwb_emulstate); #endif } /************************************************************************* * Firmware Data */ /* * Table of recommended minimum BIOS versions * * Reasons for listing: * 1. Stable BIOS, listed because the unknown amount of * bugs and bad ACPI behaviour on older versions * * 2. BIOS or EC fw with known bugs that trigger on Linux * * 3. BIOS with known reduced functionality in older versions * * We recommend the latest BIOS and EC version. * We only support the latest BIOS and EC fw version as a rule. * * Sources: IBM ThinkPad Public Web Documents (update changelogs), * Information from users in ThinkWiki * * WARNING: we use this table also to detect that the machine is * a ThinkPad in some cases, so don't remove entries lightly. */ #define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \ <------>{ .vendor = (__v), \ <------> .bios = TPID(__id1, __id2), \ <------> .ec = TPACPI_MATCH_ANY, \ <------> .quirks = TPACPI_MATCH_ANY_VERSION << 16 \ <------><------><------> | TPVER(__bv1, __bv2) } #define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \ <------><------>__eid, __ev1, __ev2) \ <------>{ .vendor = (__v), \ <------> .bios = TPID(__bid1, __bid2), \ <------> .ec = __eid, \ <------> .quirks = TPVER(__ev1, __ev2) << 16 \ <------><------><------> | TPVER(__bv1, __bv2) } #define TPV_QI0(__id1, __id2, __bv1, __bv2) \ <------>TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2) /* Outdated IBM BIOSes often lack the EC id string */ #define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ <------>TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ <------><------>__bv1, __bv2, TPID(__id1, __id2), \ <------><------>__ev1, __ev2), \ <------>TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \ <------><------>__bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ <------><------>__ev1, __ev2) /* Outdated IBM BIOSes often lack the EC id string */ #define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \ <------><------>__eid1, __eid2, __ev1, __ev2) \ <------>TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ <------><------>__bv1, __bv2, TPID(__eid1, __eid2), \ <------><------>__ev1, __ev2), \ <------>TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \ <------><------>__bv1, __bv2, TPACPI_MATCH_UNKNOWN, \ <------><------>__ev1, __ev2) #define TPV_QL0(__id1, __id2, __bv1, __bv2) \ <------>TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2) #define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \ <------>TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \ <------><------>__bv1, __bv2, TPID(__id1, __id2), \ <------><------>__ev1, __ev2) #define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \ <------><------>__eid1, __eid2, __ev1, __ev2) \ <------>TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \ <------><------>__bv1, __bv2, TPID(__eid1, __eid2), \ <------><------>__ev1, __ev2) static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = { <------>/* Numeric models ------------------ */ <------>/* FW MODEL BIOS VERS */ <------>TPV_QI0('I', 'M', '6', '5'), /* 570 */ <------>TPV_QI0('I', 'U', '2', '6'), /* 570E */ <------>TPV_QI0('I', 'B', '5', '4'), /* 600 */ <------>TPV_QI0('I', 'H', '4', '7'), /* 600E */ <------>TPV_QI0('I', 'N', '3', '6'), /* 600E */ <------>TPV_QI0('I', 'T', '5', '5'), /* 600X */ <------>TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */ <------>TPV_QI0('I', 'I', '4', '2'), /* 770X */ <------>TPV_QI0('I', 'O', '2', '3'), /* 770Z */ <------>/* A-series ------------------------- */ <------>/* FW MODEL BIOS VERS EC VERS */ <------>TPV_QI0('I', 'W', '5', '9'), /* A20m */ <------>TPV_QI0('I', 'V', '6', '9'), /* A20p */ <------>TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */ <------>TPV_QI0('K', 'U', '3', '6'), /* A21e */ <------>TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */ <------>TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */ <------>TPV_QI0('1', 'B', '1', '7'), /* A22e */ <------>TPV_QI0('1', '3', '2', '0'), /* A22m */ <------>TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */ <------>TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */ <------>TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */ <------>/* G-series ------------------------- */ <------>/* FW MODEL BIOS VERS */ <------>TPV_QI0('1', 'T', 'A', '6'), /* G40 */ <------>TPV_QI0('1', 'X', '5', '7'), /* G41 */ <------>/* R-series, T-series --------------- */ <------>/* FW MODEL BIOS VERS EC VERS */ <------>TPV_QI0('1', 'C', 'F', '0'), /* R30 */ <------>TPV_QI0('1', 'F', 'F', '1'), /* R31 */ <------>TPV_QI0('1', 'M', '9', '7'), /* R32 */ <------>TPV_QI0('1', 'O', '6', '1'), /* R40 */ <------>TPV_QI0('1', 'P', '6', '5'), /* R40 */ <------>TPV_QI0('1', 'S', '7', '0'), /* R40e */ <------>TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51, <------><------><------><------><------><------> T40/p, T41/p, T42/p (1) */ <------>TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */ <------>TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */ <------>TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */ <------>TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */ <------>TPV_QI0('I', 'Y', '6', '1'), /* T20 */ <------>TPV_QI0('K', 'Z', '3', '4'), /* T21 */ <------>TPV_QI0('1', '6', '3', '2'), /* T22 */ <------>TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */ <------>TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */ <------>TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */ <------>TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */ <------>TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */ <------>TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */ <------>/* BIOS FW BIOS VERS EC FW EC VERS */ <------>TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */ <------>TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */ <------>/* X-series ------------------------- */ <------>/* FW MODEL BIOS VERS EC VERS */ <------>TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */ <------>TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */ <------>TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */ <------>TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */ <------>TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */ <------>TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */ <------>TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */ <------>TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */ <------>TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */ <------>/* (0) - older versions lack DMI EC fw string and functionality */ <------>/* (1) - older versions known to lack functionality */ }; #undef TPV_QL1 #undef TPV_QL0 #undef TPV_QI2 #undef TPV_QI1 #undef TPV_QI0 #undef TPV_Q_X #undef TPV_Q static void __init tpacpi_check_outdated_fw(void) { <------>unsigned long fwvers; <------>u16 ec_version, bios_version; <------>fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable, <------><------><------><------>ARRAY_SIZE(tpacpi_bios_version_qtable)); <------>if (!fwvers) <------><------>return; <------>bios_version = fwvers & 0xffffU; <------>ec_version = (fwvers >> 16) & 0xffffU; <------>/* note that unknown versions are set to 0x0000 and we use that */ <------>if ((bios_version > thinkpad_id.bios_release) || <------> (ec_version > thinkpad_id.ec_release && <------><------><------><------>ec_version != TPACPI_MATCH_ANY_VERSION)) { <------><------>/* <------><------> * The changelogs would let us track down the exact <------><------> * reason, but it is just too much of a pain to track <------><------> * it. We only list BIOSes that are either really <------><------> * broken, or really stable to begin with, so it is <------><------> * best if the user upgrades the firmware anyway. <------><------> */ <------><------>pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n"); <------><------>pr_warn("WARNING: This firmware may be missing critical bug fixes and/or important features\n"); <------>} } static bool __init tpacpi_is_fw_known(void) { <------>return tpacpi_check_quirks(tpacpi_bios_version_qtable, <------><------><------>ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0; } /**************************************************************************** **************************************************************************** * * Subdrivers * **************************************************************************** ****************************************************************************/ /************************************************************************* * thinkpad-acpi metadata subdriver */ static int thinkpad_acpi_driver_read(struct seq_file *m) { <------>seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC); <------>seq_printf(m, "version:\t%s\n", TPACPI_VERSION); <------>return 0; } static struct ibm_struct thinkpad_acpi_driver_data = { <------>.name = "driver", <------>.read = thinkpad_acpi_driver_read, }; /************************************************************************* * Hotkey subdriver */ /* * ThinkPad firmware event model * * The ThinkPad firmware has two main event interfaces: normal ACPI * notifications (which follow the ACPI standard), and a private event * interface. * * The private event interface also issues events for the hotkeys. As * the driver gained features, the event handling code ended up being * built around the hotkey subdriver. This will need to be refactored * to a more formal event API eventually. * * Some "hotkeys" are actually supposed to be used as event reports, * such as "brightness has changed", "volume has changed", depending on * the ThinkPad model and how the firmware is operating. * * Unlike other classes, hotkey-class events have mask/unmask control on * non-ancient firmware. However, how it behaves changes a lot with the * firmware model and version. */ enum { /* hot key scan codes (derived from ACPI DSDT) */ <------>TP_ACPI_HOTKEYSCAN_FNF1 = 0, <------>TP_ACPI_HOTKEYSCAN_FNF2, <------>TP_ACPI_HOTKEYSCAN_FNF3, <------>TP_ACPI_HOTKEYSCAN_FNF4, <------>TP_ACPI_HOTKEYSCAN_FNF5, <------>TP_ACPI_HOTKEYSCAN_FNF6, <------>TP_ACPI_HOTKEYSCAN_FNF7, <------>TP_ACPI_HOTKEYSCAN_FNF8, <------>TP_ACPI_HOTKEYSCAN_FNF9, <------>TP_ACPI_HOTKEYSCAN_FNF10, <------>TP_ACPI_HOTKEYSCAN_FNF11, <------>TP_ACPI_HOTKEYSCAN_FNF12, <------>TP_ACPI_HOTKEYSCAN_FNBACKSPACE, <------>TP_ACPI_HOTKEYSCAN_FNINSERT, <------>TP_ACPI_HOTKEYSCAN_FNDELETE, <------>TP_ACPI_HOTKEYSCAN_FNHOME, <------>TP_ACPI_HOTKEYSCAN_FNEND, <------>TP_ACPI_HOTKEYSCAN_FNPAGEUP, <------>TP_ACPI_HOTKEYSCAN_FNPAGEDOWN, <------>TP_ACPI_HOTKEYSCAN_FNSPACE, <------>TP_ACPI_HOTKEYSCAN_VOLUMEUP, <------>TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, <------>TP_ACPI_HOTKEYSCAN_MUTE, <------>TP_ACPI_HOTKEYSCAN_THINKPAD, <------>TP_ACPI_HOTKEYSCAN_UNK1, <------>TP_ACPI_HOTKEYSCAN_UNK2, <------>TP_ACPI_HOTKEYSCAN_UNK3, <------>TP_ACPI_HOTKEYSCAN_UNK4, <------>TP_ACPI_HOTKEYSCAN_UNK5, <------>TP_ACPI_HOTKEYSCAN_UNK6, <------>TP_ACPI_HOTKEYSCAN_UNK7, <------>TP_ACPI_HOTKEYSCAN_UNK8, <------>/* Adaptive keyboard keycodes */ <------>TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, <------>TP_ACPI_HOTKEYSCAN_MUTE2 = TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, <------>TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO, <------>TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL, <------>TP_ACPI_HOTKEYSCAN_CLOUD, <------>TP_ACPI_HOTKEYSCAN_UNK9, <------>TP_ACPI_HOTKEYSCAN_VOICE, <------>TP_ACPI_HOTKEYSCAN_UNK10, <------>TP_ACPI_HOTKEYSCAN_GESTURES, <------>TP_ACPI_HOTKEYSCAN_UNK11, <------>TP_ACPI_HOTKEYSCAN_UNK12, <------>TP_ACPI_HOTKEYSCAN_UNK13, <------>TP_ACPI_HOTKEYSCAN_CONFIG, <------>TP_ACPI_HOTKEYSCAN_NEW_TAB, <------>TP_ACPI_HOTKEYSCAN_RELOAD, <------>TP_ACPI_HOTKEYSCAN_BACK, <------>TP_ACPI_HOTKEYSCAN_MIC_DOWN, <------>TP_ACPI_HOTKEYSCAN_MIC_UP, <------>TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION, <------>TP_ACPI_HOTKEYSCAN_CAMERA_MODE, <------>TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY, <------>/* Lenovo extended keymap, starting at 0x1300 */ <------>TP_ACPI_HOTKEYSCAN_EXTENDED_START, <------>/* first new observed key (star, favorites) is 0x1311 */ <------>TP_ACPI_HOTKEYSCAN_STAR = 69, <------>TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2, <------>TP_ACPI_HOTKEYSCAN_CALCULATOR, <------>TP_ACPI_HOTKEYSCAN_BLUETOOTH, <------>TP_ACPI_HOTKEYSCAN_KEYBOARD, <------>TP_ACPI_HOTKEYSCAN_FN_RIGHT_SHIFT, /* Used by "Lenovo Quick Clean" */ <------>TP_ACPI_HOTKEYSCAN_NOTIFICATION_CENTER, <------>TP_ACPI_HOTKEYSCAN_PICKUP_PHONE, <------>TP_ACPI_HOTKEYSCAN_HANGUP_PHONE, <------>/* Hotkey keymap size */ <------>TPACPI_HOTKEY_MAP_LEN }; enum { /* Keys/events available through NVRAM polling */ <------>TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U, <------>TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U, }; enum { /* Positions of some of the keys in hotkey masks */ <------>TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7, <------>TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8, <------>TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12, <------>TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME, <------>TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND, <------>TP_ACPI_HKEY_KBD_LIGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP, <------>TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE, <------>TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP, <------>TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, <------>TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE, <------>TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD, }; enum { /* NVRAM to ACPI HKEY group map */ <------>TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK | <------><------><------><------><------> TP_ACPI_HKEY_ZOOM_MASK | <------><------><------><------><------> TP_ACPI_HKEY_DISPSWTCH_MASK | <------><------><------><------><------> TP_ACPI_HKEY_HIBERNATE_MASK, <------>TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK | <------><------><------><------><------> TP_ACPI_HKEY_BRGHTDWN_MASK, <------>TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK | <------><------><------><------><------> TP_ACPI_HKEY_VOLDWN_MASK | <------><------><------><------><------> TP_ACPI_HKEY_MUTE_MASK, }; #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL struct tp_nvram_state { u16 thinkpad_toggle:1; u16 zoom_toggle:1; u16 display_toggle:1; u16 thinklight_toggle:1; u16 hibernate_toggle:1; u16 displayexp_toggle:1; u16 display_state:1; u16 brightness_toggle:1; u16 volume_toggle:1; u16 mute:1; u8 brightness_level; u8 volume_level; }; /* kthread for the hotkey poller */ static struct task_struct *tpacpi_hotkey_task; /* * Acquire mutex to write poller control variables as an * atomic block. * * Increment hotkey_config_change when changing them if you * want the kthread to forget old state. * * See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END */ static struct mutex hotkey_thread_data_mutex; static unsigned int hotkey_config_change; /* * hotkey poller control variables * * Must be atomic or readers will also need to acquire mutex * * HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END * should be used only when the changes need to be taken as * a block, OR when one needs to force the kthread to forget * old state. */ static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */ static unsigned int hotkey_poll_freq = 10; /* Hz */ #define HOTKEY_CONFIG_CRITICAL_START \ <------>do { \ <------><------>mutex_lock(&hotkey_thread_data_mutex); \ <------><------>hotkey_config_change++; \ <------>} while (0); #define HOTKEY_CONFIG_CRITICAL_END \ <------>mutex_unlock(&hotkey_thread_data_mutex); #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ #define hotkey_source_mask 0U #define HOTKEY_CONFIG_CRITICAL_START #define HOTKEY_CONFIG_CRITICAL_END #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ static struct mutex hotkey_mutex; static enum { /* Reasons for waking up */ <------>TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */ <------>TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */ <------>TP_ACPI_WAKEUP_UNDOCK, /* Undock request */ } hotkey_wakeup_reason; static int hotkey_autosleep_ack; static u32 hotkey_orig_mask; /* events the BIOS had enabled */ static u32 hotkey_all_mask; /* all events supported in fw */ static u32 hotkey_adaptive_all_mask; /* all adaptive events supported in fw */ static u32 hotkey_reserved_mask; /* events better left disabled */ static u32 hotkey_driver_mask; /* events needed by the driver */ static u32 hotkey_user_mask; /* events visible to userspace */ static u32 hotkey_acpi_mask; /* events enabled in firmware */ static u16 *hotkey_keycode_map; static struct attribute_set *hotkey_dev_attributes; static void tpacpi_driver_event(const unsigned int hkey_event); static void hotkey_driver_event(const unsigned int scancode); static void hotkey_poll_setup(const bool may_warn); /* HKEY.MHKG() return bits */ #define TP_HOTKEY_TABLET_MASK (1 << 3) enum { <------>TP_ACPI_MULTI_MODE_INVALID = 0, <------>TP_ACPI_MULTI_MODE_UNKNOWN = 1 << 0, <------>TP_ACPI_MULTI_MODE_LAPTOP = 1 << 1, <------>TP_ACPI_MULTI_MODE_TABLET = 1 << 2, <------>TP_ACPI_MULTI_MODE_FLAT = 1 << 3, <------>TP_ACPI_MULTI_MODE_STAND = 1 << 4, <------>TP_ACPI_MULTI_MODE_TENT = 1 << 5, <------>TP_ACPI_MULTI_MODE_STAND_TENT = 1 << 6, }; enum { <------>/* The following modes are considered tablet mode for the purpose of <------> * reporting the status to userspace. i.e. in all these modes it makes <------> * sense to disable the laptop input devices such as touchpad and <------> * keyboard. <------> */ <------>TP_ACPI_MULTI_MODE_TABLET_LIKE = TP_ACPI_MULTI_MODE_TABLET | <------><------><------><------><------> TP_ACPI_MULTI_MODE_STAND | <------><------><------><------><------> TP_ACPI_MULTI_MODE_TENT | <------><------><------><------><------> TP_ACPI_MULTI_MODE_STAND_TENT, }; static int hotkey_get_wlsw(void) { <------>int status; <------>if (!tp_features.hotkey_wlsw) <------><------>return -ENODEV; #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_wlswemul) <------><------>return (tpacpi_wlsw_emulstate) ? <------><------><------><------>TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; #endif <------>if (!acpi_evalf(hkey_handle, &status, "WLSW", "d")) <------><------>return -EIO; <------>return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; } static int hotkey_gmms_get_tablet_mode(int s, int *has_tablet_mode) { <------>int type = (s >> 16) & 0xffff; <------>int value = s & 0xffff; <------>int mode = TP_ACPI_MULTI_MODE_INVALID; <------>int valid_modes = 0; <------>if (has_tablet_mode) <------><------>*has_tablet_mode = 0; <------>switch (type) { <------>case 1: <------><------>valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | <------><------><------> TP_ACPI_MULTI_MODE_TABLET | <------><------><------> TP_ACPI_MULTI_MODE_STAND_TENT; <------><------>break; <------>case 2: <------><------>valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | <------><------><------> TP_ACPI_MULTI_MODE_FLAT | <------><------><------> TP_ACPI_MULTI_MODE_TABLET | <------><------><------> TP_ACPI_MULTI_MODE_STAND | <------><------><------> TP_ACPI_MULTI_MODE_TENT; <------><------>break; <------>case 3: <------><------>valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | <------><------><------> TP_ACPI_MULTI_MODE_FLAT; <------><------>break; <------>case 4: <------>case 5: <------><------>/* In mode 4, FLAT is not specified as a valid mode. However, <------><------> * it can be seen at least on the X1 Yoga 2nd Generation. <------><------> */ <------><------>valid_modes = TP_ACPI_MULTI_MODE_LAPTOP | <------><------><------> TP_ACPI_MULTI_MODE_FLAT | <------><------><------> TP_ACPI_MULTI_MODE_TABLET | <------><------><------> TP_ACPI_MULTI_MODE_STAND | <------><------><------> TP_ACPI_MULTI_MODE_TENT; <------><------>break; <------>default: <------><------>pr_err("Unknown multi mode status type %d with value 0x%04X, please report this to %s\n", <------><------> type, value, TPACPI_MAIL); <------><------>return 0; <------>} <------>if (has_tablet_mode && (valid_modes & TP_ACPI_MULTI_MODE_TABLET_LIKE)) <------><------>*has_tablet_mode = 1; <------>switch (value) { <------>case 1: <------><------>mode = TP_ACPI_MULTI_MODE_LAPTOP; <------><------>break; <------>case 2: <------><------>mode = TP_ACPI_MULTI_MODE_FLAT; <------><------>break; <------>case 3: <------><------>mode = TP_ACPI_MULTI_MODE_TABLET; <------><------>break; <------>case 4: <------><------>if (type == 1) <------><------><------>mode = TP_ACPI_MULTI_MODE_STAND_TENT; <------><------>else <------><------><------>mode = TP_ACPI_MULTI_MODE_STAND; <------><------>break; <------>case 5: <------><------>mode = TP_ACPI_MULTI_MODE_TENT; <------><------>break; <------>default: <------><------>if (type == 5 && value == 0xffff) { <------><------><------>pr_warn("Multi mode status is undetected, assuming laptop\n"); <------><------><------>return 0; <------><------>} <------>} <------>if (!(mode & valid_modes)) { <------><------>pr_err("Unknown/reserved multi mode value 0x%04X for type %d, please report this to %s\n", <------><------> value, type, TPACPI_MAIL); <------><------>return 0; <------>} <------>return !!(mode & TP_ACPI_MULTI_MODE_TABLET_LIKE); } static int hotkey_get_tablet_mode(int *status) { <------>int s; <------>switch (tp_features.hotkey_tablet) { <------>case TP_HOTKEY_TABLET_USES_MHKG: <------><------>if (!acpi_evalf(hkey_handle, &s, "MHKG", "d")) <------><------><------>return -EIO; <------><------>*status = ((s & TP_HOTKEY_TABLET_MASK) != 0); <------><------>break; <------>case TP_HOTKEY_TABLET_USES_GMMS: <------><------>if (!acpi_evalf(hkey_handle, &s, "GMMS", "dd", 0)) <------><------><------>return -EIO; <------><------>*status = hotkey_gmms_get_tablet_mode(s, NULL); <------><------>break; <------>default: <------><------>break; <------>} <------>return 0; } /* * Reads current event mask from firmware, and updates * hotkey_acpi_mask accordingly. Also resets any bits * from hotkey_user_mask that are unavailable to be * delivered (shadow requirement of the userspace ABI). * * Call with hotkey_mutex held */ static int hotkey_mask_get(void) { <------>if (tp_features.hotkey_mask) { <------><------>u32 m = 0; <------><------>if (!acpi_evalf(hkey_handle, &m, "DHKN", "d")) <------><------><------>return -EIO; <------><------>hotkey_acpi_mask = m; <------>} else { <------><------>/* no mask support doesn't mean no event support... */ <------><------>hotkey_acpi_mask = hotkey_all_mask; <------>} <------>/* sync userspace-visible mask */ <------>hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask); <------>return 0; } static void hotkey_mask_warn_incomplete_mask(void) { <------>/* log only what the user can fix... */ <------>const u32 wantedmask = hotkey_driver_mask & <------><------>~(hotkey_acpi_mask | hotkey_source_mask) & <------><------>(hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK); <------>if (wantedmask) <------><------>pr_notice("required events 0x%08x not enabled!\n", wantedmask); } /* * Set the firmware mask when supported * * Also calls hotkey_mask_get to update hotkey_acpi_mask. * * NOTE: does not set bits in hotkey_user_mask, but may reset them. * * Call with hotkey_mutex held */ static int hotkey_mask_set(u32 mask) { <------>int i; <------>int rc = 0; <------>const u32 fwmask = mask & ~hotkey_source_mask; <------>if (tp_features.hotkey_mask) { <------><------>for (i = 0; i < 32; i++) { <------><------><------>if (!acpi_evalf(hkey_handle, <------><------><------><------><------>NULL, "MHKM", "vdd", i + 1, <------><------><------><------><------>!!(mask & (1 << i)))) { <------><------><------><------>rc = -EIO; <------><------><------><------>break; <------><------><------>} <------><------>} <------>} <------>/* <------> * We *must* make an inconditional call to hotkey_mask_get to <------> * refresh hotkey_acpi_mask and update hotkey_user_mask <------> * <------> * Take the opportunity to also log when we cannot _enable_ <------> * a given event. <------> */ <------>if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) { <------><------>pr_notice("asked for hotkey mask 0x%08x, but firmware forced it to 0x%08x\n", <------><------><------> fwmask, hotkey_acpi_mask); <------>} <------>if (tpacpi_lifecycle != TPACPI_LIFE_EXITING) <------><------>hotkey_mask_warn_incomplete_mask(); <------>return rc; } /* * Sets hotkey_user_mask and tries to set the firmware mask * * Call with hotkey_mutex held */ static int hotkey_user_mask_set(const u32 mask) { <------>int rc; <------>/* Give people a chance to notice they are doing something that <------> * is bound to go boom on their users sooner or later */ <------>if (!tp_warned.hotkey_mask_ff && <------> (mask == 0xffff || mask == 0xffffff || <------> mask == 0xffffffff)) { <------><------>tp_warned.hotkey_mask_ff = 1; <------><------>pr_notice("setting the hotkey mask to 0x%08x is likely not the best way to go about it\n", <------><------><------> mask); <------><------>pr_notice("please consider using the driver defaults, and refer to up-to-date thinkpad-acpi documentation\n"); <------>} <------>/* Try to enable what the user asked for, plus whatever we need. <------> * this syncs everything but won't enable bits in hotkey_user_mask */ <------>rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask); <------>/* Enable the available bits in hotkey_user_mask */ <------>hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask); <------>return rc; } /* * Sets the driver hotkey mask. * * Can be called even if the hotkey subdriver is inactive */ static int tpacpi_hotkey_driver_mask_set(const u32 mask) { <------>int rc; <------>/* Do the right thing if hotkey_init has not been called yet */ <------>if (!tp_features.hotkey) { <------><------>hotkey_driver_mask = mask; <------><------>return 0; <------>} <------>mutex_lock(&hotkey_mutex); <------>HOTKEY_CONFIG_CRITICAL_START <------>hotkey_driver_mask = mask; #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL <------>hotkey_source_mask |= (mask & ~hotkey_all_mask); #endif <------>HOTKEY_CONFIG_CRITICAL_END <------>rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) & <------><------><------><------><------><------><------>~hotkey_source_mask); <------>hotkey_poll_setup(true); <------>mutex_unlock(&hotkey_mutex); <------>return rc; } static int hotkey_status_get(int *status) { <------>if (!acpi_evalf(hkey_handle, status, "DHKC", "d")) <------><------>return -EIO; <------>return 0; } static int hotkey_status_set(bool enable) { <------>if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0)) <------><------>return -EIO; <------>return 0; } static void tpacpi_input_send_tabletsw(void) { <------>int state; <------>if (tp_features.hotkey_tablet && <------> !hotkey_get_tablet_mode(&state)) { <------><------>mutex_lock(&tpacpi_inputdev_send_mutex); <------><------>input_report_switch(tpacpi_inputdev, <------><------><------><------> SW_TABLET_MODE, !!state); <------><------>input_sync(tpacpi_inputdev); <------><------>mutex_unlock(&tpacpi_inputdev_send_mutex); <------>} } /* Do NOT call without validating scancode first */ static void tpacpi_input_send_key(const unsigned int scancode) { <------>const unsigned int keycode = hotkey_keycode_map[scancode]; <------>if (keycode != KEY_RESERVED) { <------><------>mutex_lock(&tpacpi_inputdev_send_mutex); <------><------>input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); <------><------>input_report_key(tpacpi_inputdev, keycode, 1); <------><------>input_sync(tpacpi_inputdev); <------><------>input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode); <------><------>input_report_key(tpacpi_inputdev, keycode, 0); <------><------>input_sync(tpacpi_inputdev); <------><------>mutex_unlock(&tpacpi_inputdev_send_mutex); <------>} } /* Do NOT call without validating scancode first */ static void tpacpi_input_send_key_masked(const unsigned int scancode) { <------>hotkey_driver_event(scancode); <------>if (hotkey_user_mask & (1 << scancode)) <------><------>tpacpi_input_send_key(scancode); } #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL static struct tp_acpi_drv_struct ibm_hotkey_acpidriver; /* Do NOT call without validating scancode first */ static void tpacpi_hotkey_send_key(unsigned int scancode) { <------>tpacpi_input_send_key_masked(scancode); } static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m) { <------>u8 d; <------>if (m & TP_NVRAM_HKEY_GROUP_HK2) { <------><------>d = nvram_read_byte(TP_NVRAM_ADDR_HK2); <------><------>n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD); <------><------>n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM); <------><------>n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY); <------><------>n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE); <------>} <------>if (m & TP_ACPI_HKEY_KBD_LIGHT_MASK) { <------><------>d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT); <------><------>n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT); <------>} <------>if (m & TP_ACPI_HKEY_DISPXPAND_MASK) { <------><------>d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO); <------><------>n->displayexp_toggle = <------><------><------><------>!!(d & TP_NVRAM_MASK_HKT_DISPEXPND); <------>} <------>if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) { <------><------>d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); <------><------>n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) <------><------><------><------>>> TP_NVRAM_POS_LEVEL_BRIGHTNESS; <------><------>n->brightness_toggle = <------><------><------><------>!!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS); <------>} <------>if (m & TP_NVRAM_HKEY_GROUP_VOLUME) { <------><------>d = nvram_read_byte(TP_NVRAM_ADDR_MIXER); <------><------>n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME) <------><------><------><------>>> TP_NVRAM_POS_LEVEL_VOLUME; <------><------>n->mute = !!(d & TP_NVRAM_MASK_MUTE); <------><------>n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME); <------>} } #define TPACPI_COMPARE_KEY(__scancode, __member) \ do { \ <------>if ((event_mask & (1 << __scancode)) && \ <------> oldn->__member != newn->__member) \ <------><------>tpacpi_hotkey_send_key(__scancode); \ } while (0) #define TPACPI_MAY_SEND_KEY(__scancode) \ do { \ <------>if (event_mask & (1 << __scancode)) \ <------><------>tpacpi_hotkey_send_key(__scancode); \ } while (0) static void issue_volchange(const unsigned int oldvol, <------><------><------> const unsigned int newvol, <------><------><------> const u32 event_mask) { <------>unsigned int i = oldvol; <------>while (i > newvol) { <------><------>TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); <------><------>i--; <------>} <------>while (i < newvol) { <------><------>TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); <------><------>i++; <------>} } static void issue_brightnesschange(const unsigned int oldbrt, <------><------><------><------> const unsigned int newbrt, <------><------><------><------> const u32 event_mask) { <------>unsigned int i = oldbrt; <------>while (i > newbrt) { <------><------>TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); <------><------>i--; <------>} <------>while (i < newbrt) { <------><------>TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); <------><------>i++; <------>} } static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn, <------><------><------><------><------> struct tp_nvram_state *newn, <------><------><------><------><------> const u32 event_mask) { <------>TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle); <------>TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle); <------>TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle); <------>TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle); <------>TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle); <------>TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle); <------>/* <------> * Handle volume <------> * <------> * This code is supposed to duplicate the IBM firmware behaviour: <------> * - Pressing MUTE issues mute hotkey message, even when already mute <------> * - Pressing Volume up/down issues volume up/down hotkey messages, <------> * even when already at maximum or minimum volume <------> * - The act of unmuting issues volume up/down notification, <------> * depending which key was used to unmute <------> * <------> * We are constrained to what the NVRAM can tell us, which is not much <------> * and certainly not enough if more than one volume hotkey was pressed <------> * since the last poll cycle. <------> * <------> * Just to make our life interesting, some newer Lenovo ThinkPads have <------> * bugs in the BIOS and may fail to update volume_toggle properly. <------> */ <------>if (newn->mute) { <------><------>/* muted */ <------><------>if (!oldn->mute || <------><------> oldn->volume_toggle != newn->volume_toggle || <------><------> oldn->volume_level != newn->volume_level) { <------><------><------>/* recently muted, or repeated mute keypress, or <------><------><------> * multiple presses ending in mute */ <------><------><------>issue_volchange(oldn->volume_level, newn->volume_level, <------><------><------><------>event_mask); <------><------><------>TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE); <------><------>} <------>} else { <------><------>/* unmute */ <------><------>if (oldn->mute) { <------><------><------>/* recently unmuted, issue 'unmute' keypress */ <------><------><------>TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); <------><------>} <------><------>if (oldn->volume_level != newn->volume_level) { <------><------><------>issue_volchange(oldn->volume_level, newn->volume_level, <------><------><------><------>event_mask); <------><------>} else if (oldn->volume_toggle != newn->volume_toggle) { <------><------><------>/* repeated vol up/down keypress at end of scale ? */ <------><------><------>if (newn->volume_level == 0) <------><------><------><------>TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN); <------><------><------>else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX) <------><------><------><------>TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP); <------><------>} <------>} <------>/* handle brightness */ <------>if (oldn->brightness_level != newn->brightness_level) { <------><------>issue_brightnesschange(oldn->brightness_level, <------><------><------><------> newn->brightness_level, event_mask); <------>} else if (oldn->brightness_toggle != newn->brightness_toggle) { <------><------>/* repeated key presses that didn't change state */ <------><------>if (newn->brightness_level == 0) <------><------><------>TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND); <------><------>else if (newn->brightness_level >= bright_maxlvl <------><------><------><------>&& !tp_features.bright_unkfw) <------><------><------>TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME); <------>} #undef TPACPI_COMPARE_KEY #undef TPACPI_MAY_SEND_KEY } /* * Polling driver * * We track all events in hotkey_source_mask all the time, since * most of them are edge-based. We only issue those requested by * hotkey_user_mask or hotkey_driver_mask, though. */ static int hotkey_kthread(void *data) { <------>struct tp_nvram_state s[2] = { 0 }; <------>u32 poll_mask, event_mask; <------>unsigned int si, so; <------>unsigned long t; <------>unsigned int change_detector; <------>unsigned int poll_freq; <------>bool was_frozen; <------>if (tpacpi_lifecycle == TPACPI_LIFE_EXITING) <------><------>goto exit; <------>set_freezable(); <------>so = 0; <------>si = 1; <------>t = 0; <------>/* Initial state for compares */ <------>mutex_lock(&hotkey_thread_data_mutex); <------>change_detector = hotkey_config_change; <------>poll_mask = hotkey_source_mask; <------>event_mask = hotkey_source_mask & <------><------><------>(hotkey_driver_mask | hotkey_user_mask); <------>poll_freq = hotkey_poll_freq; <------>mutex_unlock(&hotkey_thread_data_mutex); <------>hotkey_read_nvram(&s[so], poll_mask); <------>while (!kthread_should_stop()) { <------><------>if (t == 0) { <------><------><------>if (likely(poll_freq)) <------><------><------><------>t = 1000/poll_freq; <------><------><------>else <------><------><------><------>t = 100; /* should never happen... */ <------><------>} <------><------>t = msleep_interruptible(t); <------><------>if (unlikely(kthread_freezable_should_stop(&was_frozen))) <------><------><------>break; <------><------>if (t > 0 && !was_frozen) <------><------><------>continue; <------><------>mutex_lock(&hotkey_thread_data_mutex); <------><------>if (was_frozen || hotkey_config_change != change_detector) { <------><------><------>/* forget old state on thaw or config change */ <------><------><------>si = so; <------><------><------>t = 0; <------><------><------>change_detector = hotkey_config_change; <------><------>} <------><------>poll_mask = hotkey_source_mask; <------><------>event_mask = hotkey_source_mask & <------><------><------><------>(hotkey_driver_mask | hotkey_user_mask); <------><------>poll_freq = hotkey_poll_freq; <------><------>mutex_unlock(&hotkey_thread_data_mutex); <------><------>if (likely(poll_mask)) { <------><------><------>hotkey_read_nvram(&s[si], poll_mask); <------><------><------>if (likely(si != so)) { <------><------><------><------>hotkey_compare_and_issue_event(&s[so], &s[si], <------><------><------><------><------><------><------><------>event_mask); <------><------><------>} <------><------>} <------><------>so = si; <------><------>si ^= 1; <------>} exit: <------>return 0; } /* call with hotkey_mutex held */ static void hotkey_poll_stop_sync(void) { <------>if (tpacpi_hotkey_task) { <------><------>kthread_stop(tpacpi_hotkey_task); <------><------>tpacpi_hotkey_task = NULL; <------>} } /* call with hotkey_mutex held */ static void hotkey_poll_setup(const bool may_warn) { <------>const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask; <------>const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask; <------>if (hotkey_poll_freq > 0 && <------> (poll_driver_mask || <------> (poll_user_mask && tpacpi_inputdev->users > 0))) { <------><------>if (!tpacpi_hotkey_task) { <------><------><------>tpacpi_hotkey_task = kthread_run(hotkey_kthread, <------><------><------><------><------>NULL, TPACPI_NVRAM_KTHREAD_NAME); <------><------><------>if (IS_ERR(tpacpi_hotkey_task)) { <------><------><------><------>tpacpi_hotkey_task = NULL; <------><------><------><------>pr_err("could not create kernel thread for hotkey polling\n"); <------><------><------>} <------><------>} <------>} else { <------><------>hotkey_poll_stop_sync(); <------><------>if (may_warn && (poll_driver_mask || poll_user_mask) && <------><------> hotkey_poll_freq == 0) { <------><------><------>pr_notice("hot keys 0x%08x and/or events 0x%08x require polling, which is currently disabled\n", <------><------><------><------> poll_user_mask, poll_driver_mask); <------><------>} <------>} } static void hotkey_poll_setup_safe(const bool may_warn) { <------>mutex_lock(&hotkey_mutex); <------>hotkey_poll_setup(may_warn); <------>mutex_unlock(&hotkey_mutex); } /* call with hotkey_mutex held */ static void hotkey_poll_set_freq(unsigned int freq) { <------>if (!freq) <------><------>hotkey_poll_stop_sync(); <------>hotkey_poll_freq = freq; } #else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ static void hotkey_poll_setup(const bool __unused) { } static void hotkey_poll_setup_safe(const bool __unused) { } #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ static int hotkey_inputdev_open(struct input_dev *dev) { <------>switch (tpacpi_lifecycle) { <------>case TPACPI_LIFE_INIT: <------>case TPACPI_LIFE_RUNNING: <------><------>hotkey_poll_setup_safe(false); <------><------>return 0; <------>case TPACPI_LIFE_EXITING: <------><------>return -EBUSY; <------>} <------>/* Should only happen if tpacpi_lifecycle is corrupt */ <------>BUG(); <------>return -EBUSY; } static void hotkey_inputdev_close(struct input_dev *dev) { <------>/* disable hotkey polling when possible */ <------>if (tpacpi_lifecycle != TPACPI_LIFE_EXITING && <------> !(hotkey_source_mask & hotkey_driver_mask)) <------><------>hotkey_poll_setup_safe(false); } /* sysfs hotkey enable ------------------------------------------------- */ static ssize_t hotkey_enable_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>int res, status; <------>printk_deprecated_attribute("hotkey_enable", <------><------><------>"Hotkey reporting is always enabled"); <------>res = hotkey_status_get(&status); <------>if (res) <------><------>return res; <------>return snprintf(buf, PAGE_SIZE, "%d\n", status); } static ssize_t hotkey_enable_store(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> const char *buf, size_t count) { <------>unsigned long t; <------>printk_deprecated_attribute("hotkey_enable", <------><------><------>"Hotkeys can be disabled through hotkey_mask"); <------>if (parse_strtoul(buf, 1, &t)) <------><------>return -EINVAL; <------>if (t == 0) <------><------>return -EPERM; <------>return count; } static DEVICE_ATTR_RW(hotkey_enable); /* sysfs hotkey mask --------------------------------------------------- */ static ssize_t hotkey_mask_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask); } static ssize_t hotkey_mask_store(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> const char *buf, size_t count) { <------>unsigned long t; <------>int res; <------>if (parse_strtoul(buf, 0xffffffffUL, &t)) <------><------>return -EINVAL; <------>if (mutex_lock_killable(&hotkey_mutex)) <------><------>return -ERESTARTSYS; <------>res = hotkey_user_mask_set(t); #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL <------>hotkey_poll_setup(true); #endif <------>mutex_unlock(&hotkey_mutex); <------>tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t); <------>return (res) ? res : count; } static DEVICE_ATTR_RW(hotkey_mask); /* sysfs hotkey bios_enabled ------------------------------------------- */ static ssize_t hotkey_bios_enabled_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>return sprintf(buf, "0\n"); } static DEVICE_ATTR_RO(hotkey_bios_enabled); /* sysfs hotkey bios_mask ---------------------------------------------- */ static ssize_t hotkey_bios_mask_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>printk_deprecated_attribute("hotkey_bios_mask", <------><------><------>"This attribute is useless."); <------>return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask); } static DEVICE_ATTR_RO(hotkey_bios_mask); /* sysfs hotkey all_mask ----------------------------------------------- */ static ssize_t hotkey_all_mask_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>return snprintf(buf, PAGE_SIZE, "0x%08x\n", <------><------><------><------>hotkey_all_mask | hotkey_source_mask); } static DEVICE_ATTR_RO(hotkey_all_mask); /* sysfs hotkey all_mask ----------------------------------------------- */ static ssize_t hotkey_adaptive_all_mask_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>return snprintf(buf, PAGE_SIZE, "0x%08x\n", <------><------><------>hotkey_adaptive_all_mask | hotkey_source_mask); } static DEVICE_ATTR_RO(hotkey_adaptive_all_mask); /* sysfs hotkey recommended_mask --------------------------------------- */ static ssize_t hotkey_recommended_mask_show(struct device *dev, <------><------><------><------><------> struct device_attribute *attr, <------><------><------><------><------> char *buf) { <------>return snprintf(buf, PAGE_SIZE, "0x%08x\n", <------><------><------>(hotkey_all_mask | hotkey_source_mask) <------><------><------>& ~hotkey_reserved_mask); } static DEVICE_ATTR_RO(hotkey_recommended_mask); #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL /* sysfs hotkey hotkey_source_mask ------------------------------------- */ static ssize_t hotkey_source_mask_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask); } static ssize_t hotkey_source_mask_store(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> const char *buf, size_t count) { <------>unsigned long t; <------>u32 r_ev; <------>int rc; <------>if (parse_strtoul(buf, 0xffffffffUL, &t) || <------><------>((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0)) <------><------>return -EINVAL; <------>if (mutex_lock_killable(&hotkey_mutex)) <------><------>return -ERESTARTSYS; <------>HOTKEY_CONFIG_CRITICAL_START <------>hotkey_source_mask = t; <------>HOTKEY_CONFIG_CRITICAL_END <------>rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) & <------><------><------>~hotkey_source_mask); <------>hotkey_poll_setup(true); <------>/* check if events needed by the driver got disabled */ <------>r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask) <------><------>& ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK; <------>mutex_unlock(&hotkey_mutex); <------>if (rc < 0) <------><------>pr_err("hotkey_source_mask: failed to update the firmware event mask!\n"); <------>if (r_ev) <------><------>pr_notice("hotkey_source_mask: some important events were disabled: 0x%04x\n", <------><------><------> r_ev); <------>tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t); <------>return (rc < 0) ? rc : count; } static DEVICE_ATTR_RW(hotkey_source_mask); /* sysfs hotkey hotkey_poll_freq --------------------------------------- */ static ssize_t hotkey_poll_freq_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq); } static ssize_t hotkey_poll_freq_store(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> const char *buf, size_t count) { <------>unsigned long t; <------>if (parse_strtoul(buf, 25, &t)) <------><------>return -EINVAL; <------>if (mutex_lock_killable(&hotkey_mutex)) <------><------>return -ERESTARTSYS; <------>hotkey_poll_set_freq(t); <------>hotkey_poll_setup(true); <------>mutex_unlock(&hotkey_mutex); <------>tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t); <------>return count; } static DEVICE_ATTR_RW(hotkey_poll_freq); #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */ /* sysfs hotkey radio_sw (pollable) ------------------------------------ */ static ssize_t hotkey_radio_sw_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>int res; <------>res = hotkey_get_wlsw(); <------>if (res < 0) <------><------>return res; <------>/* Opportunistic update */ <------>tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF)); <------>return snprintf(buf, PAGE_SIZE, "%d\n", <------><------><------>(res == TPACPI_RFK_RADIO_OFF) ? 0 : 1); } static DEVICE_ATTR_RO(hotkey_radio_sw); static void hotkey_radio_sw_notify_change(void) { <------>if (tp_features.hotkey_wlsw) <------><------>sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, <------><------><------> "hotkey_radio_sw"); } /* sysfs hotkey tablet mode (pollable) --------------------------------- */ static ssize_t hotkey_tablet_mode_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>int res, s; <------>res = hotkey_get_tablet_mode(&s); <------>if (res < 0) <------><------>return res; <------>return snprintf(buf, PAGE_SIZE, "%d\n", !!s); } static DEVICE_ATTR_RO(hotkey_tablet_mode); static void hotkey_tablet_mode_notify_change(void) { <------>if (tp_features.hotkey_tablet) <------><------>sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, <------><------><------> "hotkey_tablet_mode"); } /* sysfs wakeup reason (pollable) -------------------------------------- */ static ssize_t hotkey_wakeup_reason_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason); } static DEVICE_ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL); static void hotkey_wakeup_reason_notify_change(void) { <------>sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, <------><------> "wakeup_reason"); } /* sysfs wakeup hotunplug_complete (pollable) -------------------------- */ static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack); } static DEVICE_ATTR(wakeup_hotunplug_complete, S_IRUGO, <------><------> hotkey_wakeup_hotunplug_complete_show, NULL); static void hotkey_wakeup_hotunplug_complete_notify_change(void) { <------>sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, <------><------> "wakeup_hotunplug_complete"); } /* sysfs adaptive kbd mode --------------------------------------------- */ static int adaptive_keyboard_get_mode(void); static int adaptive_keyboard_set_mode(int new_mode); enum ADAPTIVE_KEY_MODE { <------>HOME_MODE, <------>WEB_BROWSER_MODE, <------>WEB_CONFERENCE_MODE, <------>FUNCTION_MODE, <------>LAYFLAT_MODE }; static ssize_t adaptive_kbd_mode_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>int current_mode; <------>current_mode = adaptive_keyboard_get_mode(); <------>if (current_mode < 0) <------><------>return current_mode; <------>return snprintf(buf, PAGE_SIZE, "%d\n", current_mode); } static ssize_t adaptive_kbd_mode_store(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> const char *buf, size_t count) { <------>unsigned long t; <------>int res; <------>if (parse_strtoul(buf, LAYFLAT_MODE, &t)) <------><------>return -EINVAL; <------>res = adaptive_keyboard_set_mode(t); <------>return (res < 0) ? res : count; } static DEVICE_ATTR_RW(adaptive_kbd_mode); static struct attribute *adaptive_kbd_attributes[] = { <------>&dev_attr_adaptive_kbd_mode.attr, <------>NULL }; static const struct attribute_group adaptive_kbd_attr_group = { <------>.attrs = adaptive_kbd_attributes, }; /* --------------------------------------------------------------------- */ static struct attribute *hotkey_attributes[] __initdata = { <------>&dev_attr_hotkey_enable.attr, <------>&dev_attr_hotkey_bios_enabled.attr, <------>&dev_attr_hotkey_bios_mask.attr, <------>&dev_attr_wakeup_reason.attr, <------>&dev_attr_wakeup_hotunplug_complete.attr, <------>&dev_attr_hotkey_mask.attr, <------>&dev_attr_hotkey_all_mask.attr, <------>&dev_attr_hotkey_adaptive_all_mask.attr, <------>&dev_attr_hotkey_recommended_mask.attr, #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL <------>&dev_attr_hotkey_source_mask.attr, <------>&dev_attr_hotkey_poll_freq.attr, #endif }; /* * Sync both the hw and sw blocking state of all switches */ static void tpacpi_send_radiosw_update(void) { <------>int wlsw; <------>/* <------> * We must sync all rfkill controllers *before* issuing any <------> * rfkill input events, or we will race the rfkill core input <------> * handler. <------> * <------> * tpacpi_inputdev_send_mutex works as a synchronization point <------> * for the above. <------> * <------> * We optimize to avoid numerous calls to hotkey_get_wlsw. <------> */ <------>wlsw = hotkey_get_wlsw(); <------>/* Sync hw blocking state first if it is hw-blocked */ <------>if (wlsw == TPACPI_RFK_RADIO_OFF) <------><------>tpacpi_rfk_update_hwblock_state(true); <------>/* Sync hw blocking state last if it is hw-unblocked */ <------>if (wlsw == TPACPI_RFK_RADIO_ON) <------><------>tpacpi_rfk_update_hwblock_state(false); <------>/* Issue rfkill input event for WLSW switch */ <------>if (!(wlsw < 0)) { <------><------>mutex_lock(&tpacpi_inputdev_send_mutex); <------><------>input_report_switch(tpacpi_inputdev, <------><------><------><------> SW_RFKILL_ALL, (wlsw > 0)); <------><------>input_sync(tpacpi_inputdev); <------><------>mutex_unlock(&tpacpi_inputdev_send_mutex); <------>} <------>/* <------> * this can be unconditional, as we will poll state again <------> * if userspace uses the notify to read data <------> */ <------>hotkey_radio_sw_notify_change(); } static void hotkey_exit(void) { #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL <------>mutex_lock(&hotkey_mutex); <------>hotkey_poll_stop_sync(); <------>mutex_unlock(&hotkey_mutex); #endif <------>if (hotkey_dev_attributes) <------><------>delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); <------>dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY, <------><------> "restoring original HKEY status and mask\n"); <------>/* yes, there is a bitwise or below, we want the <------> * functions to be called even if one of them fail */ <------>if (((tp_features.hotkey_mask && <------> hotkey_mask_set(hotkey_orig_mask)) | <------> hotkey_status_set(false)) != 0) <------><------>pr_err("failed to restore hot key mask to BIOS defaults\n"); } static void __init hotkey_unmap(const unsigned int scancode) { <------>if (hotkey_keycode_map[scancode] != KEY_RESERVED) { <------><------>clear_bit(hotkey_keycode_map[scancode], <------><------><------> tpacpi_inputdev->keybit); <------><------>hotkey_keycode_map[scancode] = KEY_RESERVED; <------>} } /* * HKEY quirks: * TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12 */ #define TPACPI_HK_Q_INIMASK 0x0001 static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = { <------>TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */ <------>TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */ <------>TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */ <------>TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */ <------>TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */ <------>TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */ <------>TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */ <------>TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */ <------>TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */ <------>TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */ <------>TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */ <------>TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */ <------>TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */ <------>TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */ <------>TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */ <------>TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */ <------>TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */ <------>TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */ <------>TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */ }; typedef u16 tpacpi_keymap_entry_t; typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN]; static int hotkey_init_tablet_mode(void) { <------>int in_tablet_mode = 0, res; <------>char *type = NULL; <------>if (acpi_evalf(hkey_handle, &res, "GMMS", "qdd", 0)) { <------><------>int has_tablet_mode; <------><------>in_tablet_mode = hotkey_gmms_get_tablet_mode(res, <------><------><------><------><------><------><------> &has_tablet_mode); <------><------>/* <------><------> * The Yoga 11e series has 2 accelerometers described by a <------><------> * BOSC0200 ACPI node. This setup relies on a Windows service <------><------> * which calls special ACPI methods on this node to report <------><------> * the laptop/tent/tablet mode to the EC. The bmc150 iio driver <------><------> * does not support this, so skip the hotkey on these models. <------><------> */ <------><------>if (has_tablet_mode && !acpi_dev_present("BOSC0200", "1", -1)) <------><------><------>tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_GMMS; <------><------>type = "GMMS"; <------>} else if (acpi_evalf(hkey_handle, &res, "MHKG", "qd")) { <------><------>/* For X41t, X60t, X61t Tablets... */ <------><------>tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_MHKG; <------><------>in_tablet_mode = !!(res & TP_HOTKEY_TABLET_MASK); <------><------>type = "MHKG"; <------>} <------>if (!tp_features.hotkey_tablet) <------><------>return 0; <------>pr_info("Tablet mode switch found (type: %s), currently in %s mode\n", <------><------>type, in_tablet_mode ? "tablet" : "laptop"); <------>res = add_to_attr_set(hotkey_dev_attributes, <------><------><------> &dev_attr_hotkey_tablet_mode.attr); <------>if (res) <------><------>return -1; <------>return in_tablet_mode; } static int __init hotkey_init(struct ibm_init_struct *iibm) { <------>/* Requirements for changing the default keymaps: <------> * <------> * 1. Many of the keys are mapped to KEY_RESERVED for very <------> * good reasons. Do not change them unless you have deep <------> * knowledge on the IBM and Lenovo ThinkPad firmware for <------> * the various ThinkPad models. The driver behaves <------> * differently for KEY_RESERVED: such keys have their <------> * hot key mask *unset* in mask_recommended, and also <------> * in the initial hot key mask programmed into the <------> * firmware at driver load time, which means the firm- <------> * ware may react very differently if you change them to <------> * something else; <------> * <------> * 2. You must be subscribed to the linux-thinkpad and <------> * ibm-acpi-devel mailing lists, and you should read the <------> * list archives since 2007 if you want to change the <------> * keymaps. This requirement exists so that you will <------> * know the past history of problems with the thinkpad- <------> * acpi driver keymaps, and also that you will be <------> * listening to any bug reports; <------> * <------> * 3. Do not send thinkpad-acpi specific patches directly to <------> * for merging, *ever*. Send them to the linux-acpi <------> * mailinglist for comments. Merging is to be done only <------> * through acpi-test and the ACPI maintainer. <------> * <------> * If the above is too much to ask, don't change the keymap. <------> * Ask the thinkpad-acpi maintainer to do it, instead. <------> */ <------>enum keymap_index { <------><------>TPACPI_KEYMAP_IBM_GENERIC = 0, <------><------>TPACPI_KEYMAP_LENOVO_GENERIC, <------>}; <------>static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = { <------>/* Generic keymap for IBM ThinkPads */ <------>[TPACPI_KEYMAP_IBM_GENERIC] = { <------><------>/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ <------><------>KEY_FN_F1, KEY_BATTERY, KEY_COFFEE, KEY_SLEEP, <------><------>KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8, <------><------>KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, <------><------>/* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ <------><------>KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ <------><------>KEY_UNKNOWN, /* 0x0D: FN+INSERT */ <------><------>KEY_UNKNOWN, /* 0x0E: FN+DELETE */ <------><------>/* brightness: firmware always reacts to them */ <------><------>KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */ <------><------>KEY_RESERVED, /* 0x10: FN+END (brightness down) */ <------><------>/* Thinklight: firmware always react to it */ <------><------>KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ <------><------>KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ <------><------>KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ <------><------>/* Volume: firmware always react to it and reprograms <------><------> * the built-in *extra* mixer. Never map it to control <------><------> * another mixer by default. */ <------><------>KEY_RESERVED, /* 0x14: VOLUME UP */ <------><------>KEY_RESERVED, /* 0x15: VOLUME DOWN */ <------><------>KEY_RESERVED, /* 0x16: MUTE */ <------><------>KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ <------><------>/* (assignments unknown, please report if found) */ <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>/* No assignments, only used for Adaptive keyboards. */ <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>/* No assignment, used for newer Lenovo models */ <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN <------><------>}, <------>/* Generic keymap for Lenovo ThinkPads */ <------>[TPACPI_KEYMAP_LENOVO_GENERIC] = { <------><------>/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */ <------><------>KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP, <------><------>KEY_WLAN, KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8, <------><------>KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND, <------><------>/* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */ <------><------>KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */ <------><------>KEY_UNKNOWN, /* 0x0D: FN+INSERT */ <------><------>KEY_UNKNOWN, /* 0x0E: FN+DELETE */ <------><------>/* These should be enabled --only-- when ACPI video <------><------> * is disabled (i.e. in "vendor" mode), and are handled <------><------> * in a special way by the init code */ <------><------>KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */ <------><------>KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */ <------><------>KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */ <------><------>KEY_UNKNOWN, /* 0x12: FN+PGDOWN */ <------><------>KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */ <------><------>/* Volume: z60/z61, T60 (BIOS version?): firmware always <------><------> * react to it and reprograms the built-in *extra* mixer. <------><------> * Never map it to control another mixer by default. <------><------> * <------><------> * T60?, T61, R60?, R61: firmware and EC tries to send <------><------> * these over the regular keyboard, so these are no-ops, <------><------> * but there are still weird bugs re. MUTE, so do not <------><------> * change unless you get test reports from all Lenovo <------><------> * models. May cause the BIOS to interfere with the <------><------> * HDA mixer. <------><------> */ <------><------>KEY_RESERVED, /* 0x14: VOLUME UP */ <------><------>KEY_RESERVED, /* 0x15: VOLUME DOWN */ <------><------>KEY_RESERVED, /* 0x16: MUTE */ <------><------>KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */ <------><------>/* (assignments unknown, please report if found) */ <------><------>KEY_UNKNOWN, KEY_UNKNOWN, <------><------>/* <------><------> * The mic mute button only sends 0x1a. It does not <------><------> * automatically mute the mic or change the mute light. <------><------> */ <------><------>KEY_MICMUTE, /* 0x1a: Mic mute (since ?400 or so) */ <------><------>/* (assignments unknown, please report if found) */ <------><------>KEY_UNKNOWN, <------><------>/* Extra keys in use since the X240 / T440 / T540 */ <------><------>KEY_CONFIG, KEY_SEARCH, KEY_SCALE, KEY_FILE, <------><------>/* <------><------> * These are the adaptive keyboard keycodes for Carbon X1 2014. <------><------> * The first item in this list is the Mute button which is <------><------> * emitted with 0x103 through <------><------> * adaptive_keyboard_hotkey_notify_hotkey() when the sound <------><------> * symbol is held. <------><------> * We'll need to offset those by 0x20. <------><------> */ <------><------>KEY_RESERVED, /* Mute held, 0x103 */ <------><------>KEY_BRIGHTNESS_MIN, /* Backlight off */ <------><------>KEY_RESERVED, /* Clipping tool */ <------><------>KEY_RESERVED, /* Cloud */ <------><------>KEY_RESERVED, <------><------>KEY_VOICECOMMAND, /* Voice */ <------><------>KEY_RESERVED, <------><------>KEY_RESERVED, /* Gestures */ <------><------>KEY_RESERVED, <------><------>KEY_RESERVED, <------><------>KEY_RESERVED, <------><------>KEY_CONFIG, /* Settings */ <------><------>KEY_RESERVED, /* New tab */ <------><------>KEY_REFRESH, /* Reload */ <------><------>KEY_BACK, /* Back */ <------><------>KEY_RESERVED, /* Microphone down */ <------><------>KEY_RESERVED, /* Microphone up */ <------><------>KEY_RESERVED, /* Microphone cancellation */ <------><------>KEY_RESERVED, /* Camera mode */ <------><------>KEY_RESERVED, /* Rotate display, 0x116 */ <------><------>/* <------><------> * These are found in 2017 models (e.g. T470s, X270). <------><------> * The lowest known value is 0x311, which according to <------><------> * the manual should launch a user defined favorite <------><------> * application. <------><------> * <------><------> * The offset for these is TP_ACPI_HOTKEYSCAN_EXTENDED_START, <------><------> * corresponding to 0x34. <------><------> */ <------><------>/* (assignments unknown, please report if found) */ <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, <------><------>KEY_UNKNOWN, <------><------>KEY_BOOKMARKS, /* Favorite app, 0x311 */ <------><------>KEY_SELECTIVE_SCREENSHOT, /* Clipping tool */ <------><------>KEY_CALC, /* Calculator (above numpad, P52) */ <------><------>KEY_BLUETOOTH, /* Bluetooth */ <------><------>KEY_KEYBOARD, /* Keyboard, 0x315 */ <------><------>KEY_FN_RIGHT_SHIFT, /* Fn + right Shift */ <------><------>KEY_NOTIFICATION_CENTER, /* Notification Center */ <------><------>KEY_PICKUP_PHONE, /* Answer incoming call */ <------><------>KEY_HANGUP_PHONE, /* Decline incoming call */ <------><------>}, <------>}; <------>static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = { <------><------>/* Generic maps (fallback) */ <------><------>{ <------><------> .vendor = PCI_VENDOR_ID_IBM, <------><------> .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, <------><------> .quirks = TPACPI_KEYMAP_IBM_GENERIC, <------><------>}, <------><------>{ <------><------> .vendor = PCI_VENDOR_ID_LENOVO, <------><------> .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, <------><------> .quirks = TPACPI_KEYMAP_LENOVO_GENERIC, <------><------>}, <------>}; #define TPACPI_HOTKEY_MAP_SIZE sizeof(tpacpi_keymap_t) #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(tpacpi_keymap_entry_t) <------>int res, i; <------>int status; <------>int hkeyv; <------>bool radiosw_state = false; <------>bool tabletsw_state = false; <------>unsigned long quirks; <------>unsigned long keymap_id; <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, <------><------><------>"initializing hotkey subdriver\n"); <------>BUG_ON(!tpacpi_inputdev); <------>BUG_ON(tpacpi_inputdev->open != NULL || <------> tpacpi_inputdev->close != NULL); <------>TPACPI_ACPIHANDLE_INIT(hkey); <------>mutex_init(&hotkey_mutex); #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL <------>mutex_init(&hotkey_thread_data_mutex); #endif <------>/* hotkey not supported on 570 */ <------>tp_features.hotkey = hkey_handle != NULL; <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, <------><------>"hotkeys are %s\n", <------><------>str_supported(tp_features.hotkey)); <------>if (!tp_features.hotkey) <------><------>return 1; <------>quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable, <------><------><------><------> ARRAY_SIZE(tpacpi_hotkey_qtable)); <------>tpacpi_disable_brightness_delay(); <------>/* MUST have enough space for all attributes to be added to <------> * hotkey_dev_attributes */ <------>hotkey_dev_attributes = create_attr_set( <------><------><------><------><------>ARRAY_SIZE(hotkey_attributes) + 2, <------><------><------><------><------>NULL); <------>if (!hotkey_dev_attributes) <------><------>return -ENOMEM; <------>res = add_many_to_attr_set(hotkey_dev_attributes, <------><------><------>hotkey_attributes, <------><------><------>ARRAY_SIZE(hotkey_attributes)); <------>if (res) <------><------>goto err_exit; <------>/* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p, <------> A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking <------> for HKEY interface version 0x100 */ <------>if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) { <------><------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, <------><------><------> "firmware HKEY interface version: 0x%x\n", <------><------><------> hkeyv); <------><------>switch (hkeyv >> 8) { <------><------>case 1: <------><------><------>/* <------><------><------> * MHKV 0x100 in A31, R40, R40e, <------><------><------> * T4x, X31, and later <------><------><------> */ <------><------><------>/* Paranoia check AND init hotkey_all_mask */ <------><------><------>if (!acpi_evalf(hkey_handle, &hotkey_all_mask, <------><------><------><------><------>"MHKA", "qd")) { <------><------><------><------>pr_err("missing MHKA handler, please report this to %s\n", <------><------><------><------> TPACPI_MAIL); <------><------><------><------>/* Fallback: pre-init for FN+F3,F4,F12 */ <------><------><------><------>hotkey_all_mask = 0x080cU; <------><------><------>} else { <------><------><------><------>tp_features.hotkey_mask = 1; <------><------><------>} <------><------><------>break; <------><------>case 2: <------><------><------>/* <------><------><------> * MHKV 0x200 in X1, T460s, X260, T560, X1 Tablet (2016) <------><------><------> */ <------><------><------>/* Paranoia check AND init hotkey_all_mask */ <------><------><------>if (!acpi_evalf(hkey_handle, &hotkey_all_mask, <------><------><------><------><------>"MHKA", "dd", 1)) { <------><------><------><------>pr_err("missing MHKA handler, please report this to %s\n", <------><------><------><------> TPACPI_MAIL); <------><------><------><------>/* Fallback: pre-init for FN+F3,F4,F12 */ <------><------><------><------>hotkey_all_mask = 0x080cU; <------><------><------>} else { <------><------><------><------>tp_features.hotkey_mask = 1; <------><------><------>} <------><------><------>/* <------><------><------> * Check if we have an adaptive keyboard, like on the <------><------><------> * Lenovo Carbon X1 2014 (2nd Gen). <------><------><------> */ <------><------><------>if (acpi_evalf(hkey_handle, &hotkey_adaptive_all_mask, <------><------><------><------> "MHKA", "dd", 2)) { <------><------><------><------>if (hotkey_adaptive_all_mask != 0) { <------><------><------><------><------>tp_features.has_adaptive_kbd = true; <------><------><------><------><------>res = sysfs_create_group( <------><------><------><------><------><------>&tpacpi_pdev->dev.kobj, <------><------><------><------><------><------>&adaptive_kbd_attr_group); <------><------><------><------><------>if (res) <------><------><------><------><------><------>goto err_exit; <------><------><------><------>} <------><------><------>} else { <------><------><------><------>tp_features.has_adaptive_kbd = false; <------><------><------><------>hotkey_adaptive_all_mask = 0x0U; <------><------><------>} <------><------><------>break; <------><------>default: <------><------><------>pr_err("unknown version of the HKEY interface: 0x%x\n", <------><------><------> hkeyv); <------><------><------>pr_err("please report this to %s\n", TPACPI_MAIL); <------><------><------>break; <------><------>} <------>} <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, <------><------>"hotkey masks are %s\n", <------><------>str_supported(tp_features.hotkey_mask)); <------>/* Init hotkey_all_mask if not initialized yet */ <------>if (!tp_features.hotkey_mask && !hotkey_all_mask && <------> (quirks & TPACPI_HK_Q_INIMASK)) <------><------>hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */ <------>/* Init hotkey_acpi_mask and hotkey_orig_mask */ <------>if (tp_features.hotkey_mask) { <------><------>/* hotkey_source_mask *must* be zero for <------><------> * the first hotkey_mask_get to return hotkey_orig_mask */ <------><------>res = hotkey_mask_get(); <------><------>if (res) <------><------><------>goto err_exit; <------><------>hotkey_orig_mask = hotkey_acpi_mask; <------>} else { <------><------>hotkey_orig_mask = hotkey_all_mask; <------><------>hotkey_acpi_mask = hotkey_all_mask; <------>} #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_wlswemul) { <------><------>tp_features.hotkey_wlsw = 1; <------><------>radiosw_state = !!tpacpi_wlsw_emulstate; <------><------>pr_info("radio switch emulation enabled\n"); <------>} else #endif <------>/* Not all thinkpads have a hardware radio switch */ <------>if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) { <------><------>tp_features.hotkey_wlsw = 1; <------><------>radiosw_state = !!status; <------><------>pr_info("radio switch found; radios are %s\n", <------><------><------>enabled(status, 0)); <------>} <------>if (tp_features.hotkey_wlsw) <------><------>res = add_to_attr_set(hotkey_dev_attributes, <------><------><------><------>&dev_attr_hotkey_radio_sw.attr); <------>res = hotkey_init_tablet_mode(); <------>if (res < 0) <------><------>goto err_exit; <------>tabletsw_state = res; <------>res = register_attr_set_with_sysfs(hotkey_dev_attributes, <------><------><------><------><------> &tpacpi_pdev->dev.kobj); <------>if (res) <------><------>goto err_exit; <------>/* Set up key map */ <------>keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable, <------><------><------><------><------>ARRAY_SIZE(tpacpi_keymap_qtable)); <------>BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps)); <------>dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, <------><------> "using keymap number %lu\n", keymap_id); <------>hotkey_keycode_map = kmemdup(&tpacpi_keymaps[keymap_id], <------><------><------>TPACPI_HOTKEY_MAP_SIZE, GFP_KERNEL); <------>if (!hotkey_keycode_map) { <------><------>pr_err("failed to allocate memory for key map\n"); <------><------>res = -ENOMEM; <------><------>goto err_exit; <------>} <------>input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN); <------>tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE; <------>tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN; <------>tpacpi_inputdev->keycode = hotkey_keycode_map; <------>for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) { <------><------>if (hotkey_keycode_map[i] != KEY_RESERVED) { <------><------><------>input_set_capability(tpacpi_inputdev, EV_KEY, <------><------><------><------><------><------>hotkey_keycode_map[i]); <------><------>} else { <------><------><------>if (i < sizeof(hotkey_reserved_mask)*8) <------><------><------><------>hotkey_reserved_mask |= 1 << i; <------><------>} <------>} <------>if (tp_features.hotkey_wlsw) { <------><------>input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL); <------><------>input_report_switch(tpacpi_inputdev, <------><------><------><------> SW_RFKILL_ALL, radiosw_state); <------>} <------>if (tp_features.hotkey_tablet) { <------><------>input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE); <------><------>input_report_switch(tpacpi_inputdev, <------><------><------><------> SW_TABLET_MODE, tabletsw_state); <------>} <------>/* Do not issue duplicate brightness change events to <------> * userspace. tpacpi_detect_brightness_capabilities() must have <------> * been called before this point */ <------>if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { <------><------>pr_info("This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver\n"); <------><------>pr_notice("Disabling thinkpad-acpi brightness events by default...\n"); <------><------>/* Disable brightness up/down on Lenovo thinkpads when <------><------> * ACPI is handling them, otherwise it is plain impossible <------><------> * for userspace to do something even remotely sane */ <------><------>hotkey_reserved_mask |= <------><------><------>(1 << TP_ACPI_HOTKEYSCAN_FNHOME) <------><------><------>| (1 << TP_ACPI_HOTKEYSCAN_FNEND); <------><------>hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME); <------><------>hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND); <------>} #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL <------>hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK <------><------><------><------>& ~hotkey_all_mask <------><------><------><------>& ~hotkey_reserved_mask; <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, <------><------> "hotkey source mask 0x%08x, polling freq %u\n", <------><------> hotkey_source_mask, hotkey_poll_freq); #endif <------>dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, <------><------><------>"enabling firmware HKEY event interface...\n"); <------>res = hotkey_status_set(true); <------>if (res) { <------><------>hotkey_exit(); <------><------>return res; <------>} <------>res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask) <------><------><------> | hotkey_driver_mask) <------><------><------> & ~hotkey_source_mask); <------>if (res < 0 && res != -ENXIO) { <------><------>hotkey_exit(); <------><------>return res; <------>} <------>hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask) <------><------><------><------>& ~hotkey_reserved_mask; <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY, <------><------>"initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n", <------><------>hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask); <------>tpacpi_inputdev->open = &hotkey_inputdev_open; <------>tpacpi_inputdev->close = &hotkey_inputdev_close; <------>hotkey_poll_setup_safe(true); <------>return 0; err_exit: <------>delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj); <------>sysfs_remove_group(&tpacpi_pdev->dev.kobj, <------><------><------>&adaptive_kbd_attr_group); <------>hotkey_dev_attributes = NULL; <------>return (res < 0) ? res : 1; } /* Thinkpad X1 Carbon support 5 modes including Home mode, Web browser * mode, Web conference mode, Function mode and Lay-flat mode. * We support Home mode and Function mode currently. * * Will consider support rest of modes in future. * */ static const int adaptive_keyboard_modes[] = { <------>HOME_MODE, /* WEB_BROWSER_MODE = 2, <------>WEB_CONFERENCE_MODE = 3, */ <------>FUNCTION_MODE }; #define DFR_CHANGE_ROW 0x101 #define DFR_SHOW_QUICKVIEW_ROW 0x102 #define FIRST_ADAPTIVE_KEY 0x103 /* press Fn key a while second, it will switch to Function Mode. Then * release Fn key, previous mode be restored. */ static bool adaptive_keyboard_mode_is_saved; static int adaptive_keyboard_prev_mode; static int adaptive_keyboard_get_mode(void) { <------>int mode = 0; <------>if (!acpi_evalf(hkey_handle, &mode, "GTRW", "dd", 0)) { <------><------>pr_err("Cannot read adaptive keyboard mode\n"); <------><------>return -EIO; <------>} <------>return mode; } static int adaptive_keyboard_set_mode(int new_mode) { <------>if (new_mode < 0 || <------><------>new_mode > LAYFLAT_MODE) <------><------>return -EINVAL; <------>if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) { <------><------>pr_err("Cannot set adaptive keyboard mode\n"); <------><------>return -EIO; <------>} <------>return 0; } static int adaptive_keyboard_get_next_mode(int mode) { <------>size_t i; <------>size_t max_mode = ARRAY_SIZE(adaptive_keyboard_modes) - 1; <------>for (i = 0; i <= max_mode; i++) { <------><------>if (adaptive_keyboard_modes[i] == mode) <------><------><------>break; <------>} <------>if (i >= max_mode) <------><------>i = 0; <------>else <------><------>i++; <------>return adaptive_keyboard_modes[i]; } static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode) { <------>int current_mode = 0; <------>int new_mode = 0; <------>int keycode; <------>switch (scancode) { <------>case DFR_CHANGE_ROW: <------><------>if (adaptive_keyboard_mode_is_saved) { <------><------><------>new_mode = adaptive_keyboard_prev_mode; <------><------><------>adaptive_keyboard_mode_is_saved = false; <------><------>} else { <------><------><------>current_mode = adaptive_keyboard_get_mode(); <------><------><------>if (current_mode < 0) <------><------><------><------>return false; <------><------><------>new_mode = adaptive_keyboard_get_next_mode( <------><------><------><------><------>current_mode); <------><------>} <------><------>if (adaptive_keyboard_set_mode(new_mode) < 0) <------><------><------>return false; <------><------>return true; <------>case DFR_SHOW_QUICKVIEW_ROW: <------><------>current_mode = adaptive_keyboard_get_mode(); <------><------>if (current_mode < 0) <------><------><------>return false; <------><------>adaptive_keyboard_prev_mode = current_mode; <------><------>adaptive_keyboard_mode_is_saved = true; <------><------>if (adaptive_keyboard_set_mode (FUNCTION_MODE) < 0) <------><------><------>return false; <------><------>return true; <------>default: <------><------>if (scancode < FIRST_ADAPTIVE_KEY || <------><------> scancode >= FIRST_ADAPTIVE_KEY + <------><------> TP_ACPI_HOTKEYSCAN_EXTENDED_START - <------><------> TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) { <------><------><------>pr_info("Unhandled adaptive keyboard key: 0x%x\n", <------><------><------><------>scancode); <------><------><------>return false; <------><------>} <------><------>keycode = hotkey_keycode_map[scancode - FIRST_ADAPTIVE_KEY + <------><------><------><------><------> TP_ACPI_HOTKEYSCAN_ADAPTIVE_START]; <------><------>if (keycode != KEY_RESERVED) { <------><------><------>mutex_lock(&tpacpi_inputdev_send_mutex); <------><------><------>input_report_key(tpacpi_inputdev, keycode, 1); <------><------><------>input_sync(tpacpi_inputdev); <------><------><------>input_report_key(tpacpi_inputdev, keycode, 0); <------><------><------>input_sync(tpacpi_inputdev); <------><------><------>mutex_unlock(&tpacpi_inputdev_send_mutex); <------><------>} <------><------>return true; <------>} } static bool hotkey_notify_hotkey(const u32 hkey, <------><------><------><------> bool *send_acpi_ev, <------><------><------><------> bool *ignore_acpi_ev) { <------>/* 0x1000-0x1FFF: key presses */ <------>unsigned int scancode = hkey & 0xfff; <------>*send_acpi_ev = true; <------>*ignore_acpi_ev = false; <------>/* <------> * Original events are in the 0x10XX range, the adaptive keyboard <------> * found in 2014 X1 Carbon emits events are of 0x11XX. In 2017 <------> * models, additional keys are emitted through 0x13XX. <------> */ <------>switch ((hkey >> 8) & 0xf) { <------>case 0: <------><------>if (scancode > 0 && <------><------> scancode <= TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) { <------><------><------>/* HKEY event 0x1001 is scancode 0x00 */ <------><------><------>scancode--; <------><------><------>if (!(hotkey_source_mask & (1 << scancode))) { <------><------><------><------>tpacpi_input_send_key_masked(scancode); <------><------><------><------>*send_acpi_ev = false; <------><------><------>} else { <------><------><------><------>*ignore_acpi_ev = true; <------><------><------>} <------><------><------>return true; <------><------>} <------><------>break; <------>case 1: <------><------>return adaptive_keyboard_hotkey_notify_hotkey(scancode); <------>case 3: <------><------>/* Extended keycodes start at 0x300 and our offset into the map <------><------> * TP_ACPI_HOTKEYSCAN_EXTENDED_START. The calculated scancode <------><------> * will be positive, but might not be in the correct range. <------><------> */ <------><------>scancode -= (0x300 - TP_ACPI_HOTKEYSCAN_EXTENDED_START); <------><------>if (scancode >= TP_ACPI_HOTKEYSCAN_EXTENDED_START && <------><------> scancode < TPACPI_HOTKEY_MAP_LEN) { <------><------><------>tpacpi_input_send_key(scancode); <------><------><------>return true; <------><------>} <------><------>break; <------>} <------>return false; } static bool hotkey_notify_wakeup(const u32 hkey, <------><------><------><------> bool *send_acpi_ev, <------><------><------><------> bool *ignore_acpi_ev) { <------>/* 0x2000-0x2FFF: Wakeup reason */ <------>*send_acpi_ev = true; <------>*ignore_acpi_ev = false; <------>switch (hkey) { <------>case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */ <------>case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */ <------><------>hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK; <------><------>*ignore_acpi_ev = true; <------><------>break; <------>case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */ <------>case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */ <------><------>hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ; <------><------>*ignore_acpi_ev = true; <------><------>break; <------>case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */ <------>case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */ <------><------>pr_alert("EMERGENCY WAKEUP: battery almost empty\n"); <------><------>/* how to auto-heal: */ <------><------>/* 2313: woke up from S3, go to S4/S5 */ <------><------>/* 2413: woke up from S4, go to S5 */ <------><------>break; <------>default: <------><------>return false; <------>} <------>if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) { <------><------>pr_info("woke up due to a hot-unplug request...\n"); <------><------>hotkey_wakeup_reason_notify_change(); <------>} <------>return true; } static bool hotkey_notify_dockevent(const u32 hkey, <------><------><------><------> bool *send_acpi_ev, <------><------><------><------> bool *ignore_acpi_ev) { <------>/* 0x4000-0x4FFF: dock-related events */ <------>*send_acpi_ev = true; <------>*ignore_acpi_ev = false; <------>switch (hkey) { <------>case TP_HKEY_EV_UNDOCK_ACK: <------><------>/* ACPI undock operation completed after wakeup */ <------><------>hotkey_autosleep_ack = 1; <------><------>pr_info("undocked\n"); <------><------>hotkey_wakeup_hotunplug_complete_notify_change(); <------><------>return true; <------>case TP_HKEY_EV_HOTPLUG_DOCK: /* docked to port replicator */ <------><------>pr_info("docked into hotplug port replicator\n"); <------><------>return true; <------>case TP_HKEY_EV_HOTPLUG_UNDOCK: /* undocked from port replicator */ <------><------>pr_info("undocked from hotplug port replicator\n"); <------><------>return true; <------>default: <------><------>return false; <------>} } static bool hotkey_notify_usrevent(const u32 hkey, <------><------><------><------> bool *send_acpi_ev, <------><------><------><------> bool *ignore_acpi_ev) { <------>/* 0x5000-0x5FFF: human interface helpers */ <------>*send_acpi_ev = true; <------>*ignore_acpi_ev = false; <------>switch (hkey) { <------>case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */ <------>case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */ <------><------>return true; <------>case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */ <------>case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */ <------><------>tpacpi_input_send_tabletsw(); <------><------>hotkey_tablet_mode_notify_change(); <------><------>*send_acpi_ev = false; <------><------>return true; <------>case TP_HKEY_EV_LID_CLOSE: /* Lid closed */ <------>case TP_HKEY_EV_LID_OPEN: /* Lid opened */ <------>case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */ <------><------>/* do not propagate these events */ <------><------>*ignore_acpi_ev = true; <------><------>return true; <------>default: <------><------>return false; <------>} } static void thermal_dump_all_sensors(void); static bool hotkey_notify_6xxx(const u32 hkey, <------><------><------><------> bool *send_acpi_ev, <------><------><------><------> bool *ignore_acpi_ev) { <------>/* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */ <------>*send_acpi_ev = true; <------>*ignore_acpi_ev = false; <------>switch (hkey) { <------>case TP_HKEY_EV_THM_TABLE_CHANGED: <------><------>pr_debug("EC reports: Thermal Table has changed\n"); <------><------>/* recommended action: do nothing, we don't have <------><------> * Lenovo ATM information */ <------><------>return true; <------>case TP_HKEY_EV_THM_CSM_COMPLETED: <------><------>pr_debug("EC reports: Thermal Control Command set completed (DYTC)\n"); <------><------>/* Thermal event - pass on to event handler */ <------><------>tpacpi_driver_event(hkey); <------><------>return true; <------>case TP_HKEY_EV_THM_TRANSFM_CHANGED: <------><------>pr_debug("EC reports: Thermal Transformation changed (GMTS)\n"); <------><------>/* recommended action: do nothing, we don't have <------><------> * Lenovo ATM information */ <------><------>return true; <------>case TP_HKEY_EV_ALARM_BAT_HOT: <------><------>pr_crit("THERMAL ALARM: battery is too hot!\n"); <------><------>/* recommended action: warn user through gui */ <------><------>break; <------>case TP_HKEY_EV_ALARM_BAT_XHOT: <------><------>pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n"); <------><------>/* recommended action: immediate sleep/hibernate */ <------><------>break; <------>case TP_HKEY_EV_ALARM_SENSOR_HOT: <------><------>pr_crit("THERMAL ALARM: a sensor reports something is too hot!\n"); <------><------>/* recommended action: warn user through gui, that */ <------><------>/* some internal component is too hot */ <------><------>break; <------>case TP_HKEY_EV_ALARM_SENSOR_XHOT: <------><------>pr_alert("THERMAL EMERGENCY: a sensor reports something is extremely hot!\n"); <------><------>/* recommended action: immediate sleep/hibernate */ <------><------>break; <------>case TP_HKEY_EV_AC_CHANGED: <------><------>/* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520: <------><------> * AC status changed; can be triggered by plugging or <------><------> * unplugging AC adapter, docking or undocking. */ <------><------>fallthrough; <------>case TP_HKEY_EV_KEY_NUMLOCK: <------>case TP_HKEY_EV_KEY_FN: <------><------>/* key press events, we just ignore them as long as the EC <------><------> * is still reporting them in the normal keyboard stream */ <------><------>*send_acpi_ev = false; <------><------>*ignore_acpi_ev = true; <------><------>return true; <------>case TP_HKEY_EV_KEY_FN_ESC: <------><------>/* Get the media key status to foce the status LED to update */ <------><------>acpi_evalf(hkey_handle, NULL, "GMKS", "v"); <------><------>*send_acpi_ev = false; <------><------>*ignore_acpi_ev = true; <------><------>return true; <------>case TP_HKEY_EV_TABLET_CHANGED: <------><------>tpacpi_input_send_tabletsw(); <------><------>hotkey_tablet_mode_notify_change(); <------><------>*send_acpi_ev = false; <------><------>return true; <------>case TP_HKEY_EV_PALM_DETECTED: <------>case TP_HKEY_EV_PALM_UNDETECTED: <------><------>/* palm detected hovering the keyboard, forward to user-space <------><------> * via netlink for consumption */ <------><------>return true; <------>default: <------><------>/* report simply as unknown, no sensor dump */ <------><------>return false; <------>} <------>thermal_dump_all_sensors(); <------>return true; } static void hotkey_notify(struct ibm_struct *ibm, u32 event) { <------>u32 hkey; <------>bool send_acpi_ev; <------>bool ignore_acpi_ev; <------>bool known_ev; <------>if (event != 0x80) { <------><------>pr_err("unknown HKEY notification event %d\n", event); <------><------>/* forward it to userspace, maybe it knows how to handle it */ <------><------>acpi_bus_generate_netlink_event( <------><------><------><------><------>ibm->acpi->device->pnp.device_class, <------><------><------><------><------>dev_name(&ibm->acpi->device->dev), <------><------><------><------><------>event, 0); <------><------>return; <------>} <------>while (1) { <------><------>if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) { <------><------><------>pr_err("failed to retrieve HKEY event\n"); <------><------><------>return; <------><------>} <------><------>if (hkey == 0) { <------><------><------>/* queue empty */ <------><------><------>return; <------><------>} <------><------>send_acpi_ev = true; <------><------>ignore_acpi_ev = false; <------><------>switch (hkey >> 12) { <------><------>case 1: <------><------><------>/* 0x1000-0x1FFF: key presses */ <------><------><------>known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev, <------><------><------><------><------><------> &ignore_acpi_ev); <------><------><------>break; <------><------>case 2: <------><------><------>/* 0x2000-0x2FFF: Wakeup reason */ <------><------><------>known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev, <------><------><------><------><------><------> &ignore_acpi_ev); <------><------><------>break; <------><------>case 3: <------><------><------>/* 0x3000-0x3FFF: bay-related wakeups */ <------><------><------>switch (hkey) { <------><------><------>case TP_HKEY_EV_BAYEJ_ACK: <------><------><------><------>hotkey_autosleep_ack = 1; <------><------><------><------>pr_info("bay ejected\n"); <------><------><------><------>hotkey_wakeup_hotunplug_complete_notify_change(); <------><------><------><------>known_ev = true; <------><------><------><------>break; <------><------><------>case TP_HKEY_EV_OPTDRV_EJ: <------><------><------><------>/* FIXME: kick libata if SATA link offline */ <------><------><------><------>known_ev = true; <------><------><------><------>break; <------><------><------>default: <------><------><------><------>known_ev = false; <------><------><------>} <------><------><------>break; <------><------>case 4: <------><------><------>/* 0x4000-0x4FFF: dock-related events */ <------><------><------>known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev, <------><------><------><------><------><------>&ignore_acpi_ev); <------><------><------>break; <------><------>case 5: <------><------><------>/* 0x5000-0x5FFF: human interface helpers */ <------><------><------>known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev, <------><------><------><------><------><------> &ignore_acpi_ev); <------><------><------>break; <------><------>case 6: <------><------><------>/* 0x6000-0x6FFF: thermal alarms/notices and <------><------><------> * keyboard events */ <------><------><------>known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev, <------><------><------><------><------><------> &ignore_acpi_ev); <------><------><------>break; <------><------>case 7: <------><------><------>/* 0x7000-0x7FFF: misc */ <------><------><------>if (tp_features.hotkey_wlsw && <------><------><------><------><------>hkey == TP_HKEY_EV_RFKILL_CHANGED) { <------><------><------><------>tpacpi_send_radiosw_update(); <------><------><------><------>send_acpi_ev = 0; <------><------><------><------>known_ev = true; <------><------><------><------>break; <------><------><------>} <------><------><------>fallthrough; /* to default */ <------><------>default: <------><------><------>known_ev = false; <------><------>} <------><------>if (!known_ev) { <------><------><------>pr_notice("unhandled HKEY event 0x%04x\n", hkey); <------><------><------>pr_notice("please report the conditions when this event happened to %s\n", <------><------><------><------> TPACPI_MAIL); <------><------>} <------><------>/* netlink events */ <------><------>if (!ignore_acpi_ev && send_acpi_ev) { <------><------><------>acpi_bus_generate_netlink_event( <------><------><------><------><------>ibm->acpi->device->pnp.device_class, <------><------><------><------><------>dev_name(&ibm->acpi->device->dev), <------><------><------><------><------>event, hkey); <------><------>} <------>} } static void hotkey_suspend(void) { <------>/* Do these on suspend, we get the events on early resume! */ <------>hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE; <------>hotkey_autosleep_ack = 0; <------>/* save previous mode of adaptive keyboard of X1 Carbon */ <------>if (tp_features.has_adaptive_kbd) { <------><------>if (!acpi_evalf(hkey_handle, &adaptive_keyboard_prev_mode, <------><------><------><------><------>"GTRW", "dd", 0)) { <------><------><------>pr_err("Cannot read adaptive keyboard mode.\n"); <------><------>} <------>} } static void hotkey_resume(void) { <------>tpacpi_disable_brightness_delay(); <------>if (hotkey_status_set(true) < 0 || <------> hotkey_mask_set(hotkey_acpi_mask) < 0) <------><------>pr_err("error while attempting to reset the event firmware interface\n"); <------>tpacpi_send_radiosw_update(); <------>tpacpi_input_send_tabletsw(); <------>hotkey_tablet_mode_notify_change(); <------>hotkey_wakeup_reason_notify_change(); <------>hotkey_wakeup_hotunplug_complete_notify_change(); <------>hotkey_poll_setup_safe(false); <------>/* restore previous mode of adapive keyboard of X1 Carbon */ <------>if (tp_features.has_adaptive_kbd) { <------><------>if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", <------><------><------><------><------>adaptive_keyboard_prev_mode)) { <------><------><------>pr_err("Cannot set adaptive keyboard mode.\n"); <------><------>} <------>} } /* procfs -------------------------------------------------------------- */ static int hotkey_read(struct seq_file *m) { <------>int res, status; <------>if (!tp_features.hotkey) { <------><------>seq_printf(m, "status:\t\tnot supported\n"); <------><------>return 0; <------>} <------>if (mutex_lock_killable(&hotkey_mutex)) <------><------>return -ERESTARTSYS; <------>res = hotkey_status_get(&status); <------>if (!res) <------><------>res = hotkey_mask_get(); <------>mutex_unlock(&hotkey_mutex); <------>if (res) <------><------>return res; <------>seq_printf(m, "status:\t\t%s\n", enabled(status, 0)); <------>if (hotkey_all_mask) { <------><------>seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask); <------><------>seq_printf(m, "commands:\tenable, disable, reset, <mask>\n"); <------>} else { <------><------>seq_printf(m, "mask:\t\tnot supported\n"); <------><------>seq_printf(m, "commands:\tenable, disable, reset\n"); <------>} <------>return 0; } static void hotkey_enabledisable_warn(bool enable) { <------>tpacpi_log_usertask("procfs hotkey enable/disable"); <------>if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable), <------><------> pr_fmt("hotkey enable/disable functionality has been removed from the driver. Hotkeys are always enabled.\n"))) <------><------>pr_err("Please remove the hotkey=enable module parameter, it is deprecated. Hotkeys are always enabled.\n"); } static int hotkey_write(char *buf) { <------>int res; <------>u32 mask; <------>char *cmd; <------>if (!tp_features.hotkey) <------><------>return -ENODEV; <------>if (mutex_lock_killable(&hotkey_mutex)) <------><------>return -ERESTARTSYS; <------>mask = hotkey_user_mask; <------>res = 0; <------>while ((cmd = strsep(&buf, ","))) { <------><------>if (strlencmp(cmd, "enable") == 0) { <------><------><------>hotkey_enabledisable_warn(1); <------><------>} else if (strlencmp(cmd, "disable") == 0) { <------><------><------>hotkey_enabledisable_warn(0); <------><------><------>res = -EPERM; <------><------>} else if (strlencmp(cmd, "reset") == 0) { <------><------><------>mask = (hotkey_all_mask | hotkey_source_mask) <------><------><------><------>& ~hotkey_reserved_mask; <------><------>} else if (sscanf(cmd, "0x%x", &mask) == 1) { <------><------><------>/* mask set */ <------><------>} else if (sscanf(cmd, "%x", &mask) == 1) { <------><------><------>/* mask set */ <------><------>} else { <------><------><------>res = -EINVAL; <------><------><------>goto errexit; <------><------>} <------>} <------>if (!res) { <------><------>tpacpi_disclose_usertask("procfs hotkey", <------><------><------>"set mask to 0x%08x\n", mask); <------><------>res = hotkey_user_mask_set(mask); <------>} errexit: <------>mutex_unlock(&hotkey_mutex); <------>return res; } static const struct acpi_device_id ibm_htk_device_ids[] = { <------>{TPACPI_ACPI_IBM_HKEY_HID, 0}, <------>{TPACPI_ACPI_LENOVO_HKEY_HID, 0}, <------>{TPACPI_ACPI_LENOVO_HKEY_V2_HID, 0}, <------>{"", 0}, }; static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = { <------>.hid = ibm_htk_device_ids, <------>.notify = hotkey_notify, <------>.handle = &hkey_handle, <------>.type = ACPI_DEVICE_NOTIFY, }; static struct ibm_struct hotkey_driver_data = { <------>.name = "hotkey", <------>.read = hotkey_read, <------>.write = hotkey_write, <------>.exit = hotkey_exit, <------>.resume = hotkey_resume, <------>.suspend = hotkey_suspend, <------>.acpi = &ibm_hotkey_acpidriver, }; /************************************************************************* * Bluetooth subdriver */ enum { <------>/* ACPI GBDC/SBDC bits */ <------>TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */ <------>TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */ <------>TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume: <------><------><------><------><------><------> 0 = disable, 1 = enable */ }; enum { <------>/* ACPI \BLTH commands */ <------>TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */ <------>TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */ <------>TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */ <------>TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */ <------>TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */ }; #define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw" static int bluetooth_get_status(void) { <------>int status; #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_bluetoothemul) <------><------>return (tpacpi_bluetooth_emulstate) ? <------><------> TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; #endif <------>if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) <------><------>return -EIO; <------>return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? <------><------><------>TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; } static int bluetooth_set_status(enum tpacpi_rfkill_state state) { <------>int status; <------>vdbg_printk(TPACPI_DBG_RFKILL, <------><------>"will attempt to %s bluetooth\n", <------><------>(state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_bluetoothemul) { <------><------>tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON); <------><------>return 0; <------>} #endif <------>if (state == TPACPI_RFK_RADIO_ON) <------><------>status = TP_ACPI_BLUETOOTH_RADIOSSW <------><------><------> | TP_ACPI_BLUETOOTH_RESUMECTRL; <------>else <------><------>status = 0; <------>if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) <------><------>return -EIO; <------>return 0; } /* sysfs bluetooth enable ---------------------------------------------- */ static ssize_t bluetooth_enable_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID, <------><------><------>attr, buf); } static ssize_t bluetooth_enable_store(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> const char *buf, size_t count) { <------>return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID, <------><------><------><------>attr, buf, count); } static DEVICE_ATTR_RW(bluetooth_enable); /* --------------------------------------------------------------------- */ static struct attribute *bluetooth_attributes[] = { <------>&dev_attr_bluetooth_enable.attr, <------>NULL }; static const struct attribute_group bluetooth_attr_group = { <------>.attrs = bluetooth_attributes, }; static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = { <------>.get_status = bluetooth_get_status, <------>.set_status = bluetooth_set_status, }; static void bluetooth_shutdown(void) { <------>/* Order firmware to save current state to NVRAM */ <------>if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd", <------><------><------>TP_ACPI_BLTH_SAVE_STATE)) <------><------>pr_notice("failed to save bluetooth state to NVRAM\n"); <------>else <------><------>vdbg_printk(TPACPI_DBG_RFKILL, <------><------><------>"bluetooth state saved to NVRAM\n"); } static void bluetooth_exit(void) { <------>sysfs_remove_group(&tpacpi_pdev->dev.kobj, <------><------><------>&bluetooth_attr_group); <------>tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); <------>bluetooth_shutdown(); } static const struct dmi_system_id bt_fwbug_list[] __initconst = { <------>{ <------><------>.ident = "ThinkPad E485", <------><------>.matches = { <------><------><------>DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), <------><------><------>DMI_MATCH(DMI_BOARD_NAME, "20KU"), <------><------>}, <------>}, <------>{ <------><------>.ident = "ThinkPad E585", <------><------>.matches = { <------><------><------>DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), <------><------><------>DMI_MATCH(DMI_BOARD_NAME, "20KV"), <------><------>}, <------>}, <------>{ <------><------>.ident = "ThinkPad A285 - 20MW", <------><------>.matches = { <------><------><------>DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), <------><------><------>DMI_MATCH(DMI_BOARD_NAME, "20MW"), <------><------>}, <------>}, <------>{ <------><------>.ident = "ThinkPad A285 - 20MX", <------><------>.matches = { <------><------><------>DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), <------><------><------>DMI_MATCH(DMI_BOARD_NAME, "20MX"), <------><------>}, <------>}, <------>{ <------><------>.ident = "ThinkPad A485 - 20MU", <------><------>.matches = { <------><------><------>DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), <------><------><------>DMI_MATCH(DMI_BOARD_NAME, "20MU"), <------><------>}, <------>}, <------>{ <------><------>.ident = "ThinkPad A485 - 20MV", <------><------>.matches = { <------><------><------>DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), <------><------><------>DMI_MATCH(DMI_BOARD_NAME, "20MV"), <------><------>}, <------>}, <------>{} }; static const struct pci_device_id fwbug_cards_ids[] __initconst = { <------>{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24F3) }, <------>{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24FD) }, <------>{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2526) }, <------>{} }; static int __init have_bt_fwbug(void) { <------>/* <------> * Some AMD based ThinkPads have a firmware bug that calling <------> * "GBDC" will cause bluetooth on Intel wireless cards blocked <------> */ <------>if (dmi_check_system(bt_fwbug_list) && pci_dev_present(fwbug_cards_ids)) { <------><------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, <------><------><------>FW_BUG "disable bluetooth subdriver for Intel cards\n"); <------><------>return 1; <------>} else <------><------>return 0; } static int __init bluetooth_init(struct ibm_init_struct *iibm) { <------>int res; <------>int status = 0; <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, <------><------><------>"initializing bluetooth subdriver\n"); <------>TPACPI_ACPIHANDLE_INIT(hkey); <------>/* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, <------> G4x, R30, R31, R40e, R50e, T20-22, X20-21 */ <------>tp_features.bluetooth = !have_bt_fwbug() && hkey_handle && <------> acpi_evalf(hkey_handle, &status, "GBDC", "qd"); <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, <------><------>"bluetooth is %s, status 0x%02x\n", <------><------>str_supported(tp_features.bluetooth), <------><------>status); #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_bluetoothemul) { <------><------>tp_features.bluetooth = 1; <------><------>pr_info("bluetooth switch emulation enabled\n"); <------>} else #endif <------>if (tp_features.bluetooth && <------> !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { <------><------>/* no bluetooth hardware present in system */ <------><------>tp_features.bluetooth = 0; <------><------>dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, <------><------><------> "bluetooth hardware not installed\n"); <------>} <------>if (!tp_features.bluetooth) <------><------>return 1; <------>res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, <------><------><------><------>&bluetooth_tprfk_ops, <------><------><------><------>RFKILL_TYPE_BLUETOOTH, <------><------><------><------>TPACPI_RFK_BLUETOOTH_SW_NAME, <------><------><------><------>true); <------>if (res) <------><------>return res; <------>res = sysfs_create_group(&tpacpi_pdev->dev.kobj, <------><------><------><------>&bluetooth_attr_group); <------>if (res) { <------><------>tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID); <------><------>return res; <------>} <------>return 0; } /* procfs -------------------------------------------------------------- */ static int bluetooth_read(struct seq_file *m) { <------>return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m); } static int bluetooth_write(char *buf) { <------>return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf); } static struct ibm_struct bluetooth_driver_data = { <------>.name = "bluetooth", <------>.read = bluetooth_read, <------>.write = bluetooth_write, <------>.exit = bluetooth_exit, <------>.shutdown = bluetooth_shutdown, }; /************************************************************************* * Wan subdriver */ enum { <------>/* ACPI GWAN/SWAN bits */ <------>TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */ <------>TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */ <------>TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume: <------><------><------><------><------><------> 0 = disable, 1 = enable */ }; #define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw" static int wan_get_status(void) { <------>int status; #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_wwanemul) <------><------>return (tpacpi_wwan_emulstate) ? <------><------> TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; #endif <------>if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) <------><------>return -EIO; <------>return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? <------><------><------>TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; } static int wan_set_status(enum tpacpi_rfkill_state state) { <------>int status; <------>vdbg_printk(TPACPI_DBG_RFKILL, <------><------>"will attempt to %s wwan\n", <------><------>(state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_wwanemul) { <------><------>tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON); <------><------>return 0; <------>} #endif <------>if (state == TPACPI_RFK_RADIO_ON) <------><------>status = TP_ACPI_WANCARD_RADIOSSW <------><------><------> | TP_ACPI_WANCARD_RESUMECTRL; <------>else <------><------>status = 0; <------>if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) <------><------>return -EIO; <------>return 0; } /* sysfs wan enable ---------------------------------------------------- */ static ssize_t wan_enable_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID, <------><------><------>attr, buf); } static ssize_t wan_enable_store(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> const char *buf, size_t count) { <------>return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID, <------><------><------>attr, buf, count); } static DEVICE_ATTR(wwan_enable, S_IWUSR | S_IRUGO, <------><------> wan_enable_show, wan_enable_store); /* --------------------------------------------------------------------- */ static struct attribute *wan_attributes[] = { <------>&dev_attr_wwan_enable.attr, <------>NULL }; static const struct attribute_group wan_attr_group = { <------>.attrs = wan_attributes, }; static const struct tpacpi_rfk_ops wan_tprfk_ops = { <------>.get_status = wan_get_status, <------>.set_status = wan_set_status, }; static void wan_shutdown(void) { <------>/* Order firmware to save current state to NVRAM */ <------>if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd", <------><------><------>TP_ACPI_WGSV_SAVE_STATE)) <------><------>pr_notice("failed to save WWAN state to NVRAM\n"); <------>else <------><------>vdbg_printk(TPACPI_DBG_RFKILL, <------><------><------>"WWAN state saved to NVRAM\n"); } static void wan_exit(void) { <------>sysfs_remove_group(&tpacpi_pdev->dev.kobj, <------><------>&wan_attr_group); <------>tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); <------>wan_shutdown(); } static int __init wan_init(struct ibm_init_struct *iibm) { <------>int res; <------>int status = 0; <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, <------><------><------>"initializing wan subdriver\n"); <------>TPACPI_ACPIHANDLE_INIT(hkey); <------>tp_features.wan = hkey_handle && <------> acpi_evalf(hkey_handle, &status, "GWAN", "qd"); <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, <------><------>"wan is %s, status 0x%02x\n", <------><------>str_supported(tp_features.wan), <------><------>status); #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_wwanemul) { <------><------>tp_features.wan = 1; <------><------>pr_info("wwan switch emulation enabled\n"); <------>} else #endif <------>if (tp_features.wan && <------> !(status & TP_ACPI_WANCARD_HWPRESENT)) { <------><------>/* no wan hardware present in system */ <------><------>tp_features.wan = 0; <------><------>dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, <------><------><------> "wan hardware not installed\n"); <------>} <------>if (!tp_features.wan) <------><------>return 1; <------>res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, <------><------><------><------>&wan_tprfk_ops, <------><------><------><------>RFKILL_TYPE_WWAN, <------><------><------><------>TPACPI_RFK_WWAN_SW_NAME, <------><------><------><------>true); <------>if (res) <------><------>return res; <------>res = sysfs_create_group(&tpacpi_pdev->dev.kobj, <------><------><------><------>&wan_attr_group); <------>if (res) { <------><------>tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID); <------><------>return res; <------>} <------>return 0; } /* procfs -------------------------------------------------------------- */ static int wan_read(struct seq_file *m) { <------>return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m); } static int wan_write(char *buf) { <------>return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf); } static struct ibm_struct wan_driver_data = { <------>.name = "wan", <------>.read = wan_read, <------>.write = wan_write, <------>.exit = wan_exit, <------>.shutdown = wan_shutdown, }; /************************************************************************* * UWB subdriver */ enum { <------>/* ACPI GUWB/SUWB bits */ <------>TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */ <------>TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */ }; #define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw" static int uwb_get_status(void) { <------>int status; #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_uwbemul) <------><------>return (tpacpi_uwb_emulstate) ? <------><------> TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; #endif <------>if (!acpi_evalf(hkey_handle, &status, "GUWB", "d")) <------><------>return -EIO; <------>return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ? <------><------><------>TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF; } static int uwb_set_status(enum tpacpi_rfkill_state state) { <------>int status; <------>vdbg_printk(TPACPI_DBG_RFKILL, <------><------>"will attempt to %s UWB\n", <------><------>(state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable"); #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_uwbemul) { <------><------>tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON); <------><------>return 0; <------>} #endif <------>if (state == TPACPI_RFK_RADIO_ON) <------><------>status = TP_ACPI_UWB_RADIOSSW; <------>else <------><------>status = 0; <------>if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status)) <------><------>return -EIO; <------>return 0; } /* --------------------------------------------------------------------- */ static const struct tpacpi_rfk_ops uwb_tprfk_ops = { <------>.get_status = uwb_get_status, <------>.set_status = uwb_set_status, }; static void uwb_exit(void) { <------>tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID); } static int __init uwb_init(struct ibm_init_struct *iibm) { <------>int res; <------>int status = 0; <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, <------><------><------>"initializing uwb subdriver\n"); <------>TPACPI_ACPIHANDLE_INIT(hkey); <------>tp_features.uwb = hkey_handle && <------> acpi_evalf(hkey_handle, &status, "GUWB", "qd"); <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL, <------><------>"uwb is %s, status 0x%02x\n", <------><------>str_supported(tp_features.uwb), <------><------>status); #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES <------>if (dbg_uwbemul) { <------><------>tp_features.uwb = 1; <------><------>pr_info("uwb switch emulation enabled\n"); <------>} else #endif <------>if (tp_features.uwb && <------> !(status & TP_ACPI_UWB_HWPRESENT)) { <------><------>/* no uwb hardware present in system */ <------><------>tp_features.uwb = 0; <------><------>dbg_printk(TPACPI_DBG_INIT, <------><------><------> "uwb hardware not installed\n"); <------>} <------>if (!tp_features.uwb) <------><------>return 1; <------>res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID, <------><------><------><------>&uwb_tprfk_ops, <------><------><------><------>RFKILL_TYPE_UWB, <------><------><------><------>TPACPI_RFK_UWB_SW_NAME, <------><------><------><------>false); <------>return res; } static struct ibm_struct uwb_driver_data = { <------>.name = "uwb", <------>.exit = uwb_exit, <------>.flags.experimental = 1, }; /************************************************************************* * Video subdriver */ #ifdef CONFIG_THINKPAD_ACPI_VIDEO enum video_access_mode { <------>TPACPI_VIDEO_NONE = 0, <------>TPACPI_VIDEO_570, /* 570 */ <------>TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */ <------>TPACPI_VIDEO_NEW, /* all others */ }; enum { /* video status flags, based on VIDEO_570 */ <------>TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */ <------>TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */ <------>TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */ }; enum { /* TPACPI_VIDEO_570 constants */ <------>TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */ <------>TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to <------><------><------><------><------><------> * video_status_flags */ <------>TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */ <------>TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */ }; static enum video_access_mode video_supported; static int video_orig_autosw; static int video_autosw_get(void); static int video_autosw_set(int enable); TPACPI_HANDLE(vid, root, <------> "\\_SB.PCI.AGP.VGA", /* 570 */ <------> "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */ <------> "\\_SB.PCI0.VID0", /* 770e */ <------> "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */ <------> "\\_SB.PCI0.AGP.VGA", /* X100e and a few others */ <------> "\\_SB.PCI0.AGP.VID", /* all others */ <------>); /* R30, R31 */ TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */ static int __init video_init(struct ibm_init_struct *iibm) { <------>int ivga; <------>vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n"); <------>TPACPI_ACPIHANDLE_INIT(vid); <------>if (tpacpi_is_ibm()) <------><------>TPACPI_ACPIHANDLE_INIT(vid2); <------>if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga) <------><------>/* G41, assume IVGA doesn't change */ <------><------>vid_handle = vid2_handle; <------>if (!vid_handle) <------><------>/* video switching not supported on R30, R31 */ <------><------>video_supported = TPACPI_VIDEO_NONE; <------>else if (tpacpi_is_ibm() && <------><------> acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd")) <------><------>/* 570 */ <------><------>video_supported = TPACPI_VIDEO_570; <------>else if (tpacpi_is_ibm() && <------><------> acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd")) <------><------>/* 600e/x, 770e, 770x */ <------><------>video_supported = TPACPI_VIDEO_770; <------>else <------><------>/* all others */ <------><------>video_supported = TPACPI_VIDEO_NEW; <------>vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n", <------><------>str_supported(video_supported != TPACPI_VIDEO_NONE), <------><------>video_supported); <------>return (video_supported != TPACPI_VIDEO_NONE) ? 0 : 1; } static void video_exit(void) { <------>dbg_printk(TPACPI_DBG_EXIT, <------><------> "restoring original video autoswitch mode\n"); <------>if (video_autosw_set(video_orig_autosw)) <------><------>pr_err("error while trying to restore original video autoswitch mode\n"); } static int video_outputsw_get(void) { <------>int status = 0; <------>int i; <------>switch (video_supported) { <------>case TPACPI_VIDEO_570: <------><------>if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd", <------><------><------><------> TP_ACPI_VIDEO_570_PHSCMD)) <------><------><------>return -EIO; <------><------>status = i & TP_ACPI_VIDEO_570_PHSMASK; <------><------>break; <------>case TPACPI_VIDEO_770: <------><------>if (!acpi_evalf(NULL, &i, "\\VCDL", "d")) <------><------><------>return -EIO; <------><------>if (i) <------><------><------>status |= TP_ACPI_VIDEO_S_LCD; <------><------>if (!acpi_evalf(NULL, &i, "\\VCDC", "d")) <------><------><------>return -EIO; <------><------>if (i) <------><------><------>status |= TP_ACPI_VIDEO_S_CRT; <------><------>break; <------>case TPACPI_VIDEO_NEW: <------><------>if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) || <------><------> !acpi_evalf(NULL, &i, "\\VCDC", "d")) <------><------><------>return -EIO; <------><------>if (i) <------><------><------>status |= TP_ACPI_VIDEO_S_CRT; <------><------>if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) || <------><------> !acpi_evalf(NULL, &i, "\\VCDL", "d")) <------><------><------>return -EIO; <------><------>if (i) <------><------><------>status |= TP_ACPI_VIDEO_S_LCD; <------><------>if (!acpi_evalf(NULL, &i, "\\VCDD", "d")) <------><------><------>return -EIO; <------><------>if (i) <------><------><------>status |= TP_ACPI_VIDEO_S_DVI; <------><------>break; <------>default: <------><------>return -ENOSYS; <------>} <------>return status; } static int video_outputsw_set(int status) { <------>int autosw; <------>int res = 0; <------>switch (video_supported) { <------>case TPACPI_VIDEO_570: <------><------>res = acpi_evalf(NULL, NULL, <------><------><------><------> "\\_SB.PHS2", "vdd", <------><------><------><------> TP_ACPI_VIDEO_570_PHS2CMD, <------><------><------><------> status | TP_ACPI_VIDEO_570_PHS2SET); <------><------>break; <------>case TPACPI_VIDEO_770: <------><------>autosw = video_autosw_get(); <------><------>if (autosw < 0) <------><------><------>return autosw; <------><------>res = video_autosw_set(1); <------><------>if (res) <------><------><------>return res; <------><------>res = acpi_evalf(vid_handle, NULL, <------><------><------><------> "ASWT", "vdd", status * 0x100, 0); <------><------>if (!autosw && video_autosw_set(autosw)) { <------><------><------>pr_err("video auto-switch left enabled due to error\n"); <------><------><------>return -EIO; <------><------>} <------><------>break; <------>case TPACPI_VIDEO_NEW: <------><------>res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) && <------><------> acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1); <------><------>break; <------>default: <------><------>return -ENOSYS; <------>} <------>return (res) ? 0 : -EIO; } static int video_autosw_get(void) { <------>int autosw = 0; <------>switch (video_supported) { <------>case TPACPI_VIDEO_570: <------><------>if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d")) <------><------><------>return -EIO; <------><------>break; <------>case TPACPI_VIDEO_770: <------>case TPACPI_VIDEO_NEW: <------><------>if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d")) <------><------><------>return -EIO; <------><------>break; <------>default: <------><------>return -ENOSYS; <------>} <------>return autosw & 1; } static int video_autosw_set(int enable) { <------>if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable) ? 1 : 0)) <------><------>return -EIO; <------>return 0; } static int video_outputsw_cycle(void) { <------>int autosw = video_autosw_get(); <------>int res; <------>if (autosw < 0) <------><------>return autosw; <------>switch (video_supported) { <------>case TPACPI_VIDEO_570: <------><------>res = video_autosw_set(1); <------><------>if (res) <------><------><------>return res; <------><------>res = acpi_evalf(ec_handle, NULL, "_Q16", "v"); <------><------>break; <------>case TPACPI_VIDEO_770: <------>case TPACPI_VIDEO_NEW: <------><------>res = video_autosw_set(1); <------><------>if (res) <------><------><------>return res; <------><------>res = acpi_evalf(vid_handle, NULL, "VSWT", "v"); <------><------>break; <------>default: <------><------>return -ENOSYS; <------>} <------>if (!autosw && video_autosw_set(autosw)) { <------><------>pr_err("video auto-switch left enabled due to error\n"); <------><------>return -EIO; <------>} <------>return (res) ? 0 : -EIO; } static int video_expand_toggle(void) { <------>switch (video_supported) { <------>case TPACPI_VIDEO_570: <------><------>return acpi_evalf(ec_handle, NULL, "_Q17", "v") ? <------><------><------>0 : -EIO; <------>case TPACPI_VIDEO_770: <------><------>return acpi_evalf(vid_handle, NULL, "VEXP", "v") ? <------><------><------>0 : -EIO; <------>case TPACPI_VIDEO_NEW: <------><------>return acpi_evalf(NULL, NULL, "\\VEXP", "v") ? <------><------><------>0 : -EIO; <------>default: <------><------>return -ENOSYS; <------>} <------>/* not reached */ } static int video_read(struct seq_file *m) { <------>int status, autosw; <------>if (video_supported == TPACPI_VIDEO_NONE) { <------><------>seq_printf(m, "status:\t\tnot supported\n"); <------><------>return 0; <------>} <------>/* Even reads can crash X.org, so... */ <------>if (!capable(CAP_SYS_ADMIN)) <------><------>return -EPERM; <------>status = video_outputsw_get(); <------>if (status < 0) <------><------>return status; <------>autosw = video_autosw_get(); <------>if (autosw < 0) <------><------>return autosw; <------>seq_printf(m, "status:\t\tsupported\n"); <------>seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0)); <------>seq_printf(m, "crt:\t\t%s\n", enabled(status, 1)); <------>if (video_supported == TPACPI_VIDEO_NEW) <------><------>seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3)); <------>seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0)); <------>seq_printf(m, "commands:\tlcd_enable, lcd_disable\n"); <------>seq_printf(m, "commands:\tcrt_enable, crt_disable\n"); <------>if (video_supported == TPACPI_VIDEO_NEW) <------><------>seq_printf(m, "commands:\tdvi_enable, dvi_disable\n"); <------>seq_printf(m, "commands:\tauto_enable, auto_disable\n"); <------>seq_printf(m, "commands:\tvideo_switch, expand_toggle\n"); <------>return 0; } static int video_write(char *buf) { <------>char *cmd; <------>int enable, disable, status; <------>int res; <------>if (video_supported == TPACPI_VIDEO_NONE) <------><------>return -ENODEV; <------>/* Even reads can crash X.org, let alone writes... */ <------>if (!capable(CAP_SYS_ADMIN)) <------><------>return -EPERM; <------>enable = 0; <------>disable = 0; <------>while ((cmd = strsep(&buf, ","))) { <------><------>if (strlencmp(cmd, "lcd_enable") == 0) { <------><------><------>enable |= TP_ACPI_VIDEO_S_LCD; <------><------>} else if (strlencmp(cmd, "lcd_disable") == 0) { <------><------><------>disable |= TP_ACPI_VIDEO_S_LCD; <------><------>} else if (strlencmp(cmd, "crt_enable") == 0) { <------><------><------>enable |= TP_ACPI_VIDEO_S_CRT; <------><------>} else if (strlencmp(cmd, "crt_disable") == 0) { <------><------><------>disable |= TP_ACPI_VIDEO_S_CRT; <------><------>} else if (video_supported == TPACPI_VIDEO_NEW && <------><------><------> strlencmp(cmd, "dvi_enable") == 0) { <------><------><------>enable |= TP_ACPI_VIDEO_S_DVI; <------><------>} else if (video_supported == TPACPI_VIDEO_NEW && <------><------><------> strlencmp(cmd, "dvi_disable") == 0) { <------><------><------>disable |= TP_ACPI_VIDEO_S_DVI; <------><------>} else if (strlencmp(cmd, "auto_enable") == 0) { <------><------><------>res = video_autosw_set(1); <------><------><------>if (res) <------><------><------><------>return res; <------><------>} else if (strlencmp(cmd, "auto_disable") == 0) { <------><------><------>res = video_autosw_set(0); <------><------><------>if (res) <------><------><------><------>return res; <------><------>} else if (strlencmp(cmd, "video_switch") == 0) { <------><------><------>res = video_outputsw_cycle(); <------><------><------>if (res) <------><------><------><------>return res; <------><------>} else if (strlencmp(cmd, "expand_toggle") == 0) { <------><------><------>res = video_expand_toggle(); <------><------><------>if (res) <------><------><------><------>return res; <------><------>} else <------><------><------>return -EINVAL; <------>} <------>if (enable || disable) { <------><------>status = video_outputsw_get(); <------><------>if (status < 0) <------><------><------>return status; <------><------>res = video_outputsw_set((status & ~disable) | enable); <------><------>if (res) <------><------><------>return res; <------>} <------>return 0; } static struct ibm_struct video_driver_data = { <------>.name = "video", <------>.read = video_read, <------>.write = video_write, <------>.exit = video_exit, }; #endif /* CONFIG_THINKPAD_ACPI_VIDEO */ /************************************************************************* * Keyboard backlight subdriver */ static enum led_brightness kbdlight_brightness; static DEFINE_MUTEX(kbdlight_mutex); static int kbdlight_set_level(int level) { <------>int ret = 0; <------>if (!hkey_handle) <------><------>return -ENXIO; <------>mutex_lock(&kbdlight_mutex); <------>if (!acpi_evalf(hkey_handle, NULL, "MLCS", "dd", level)) <------><------>ret = -EIO; <------>else <------><------>kbdlight_brightness = level; <------>mutex_unlock(&kbdlight_mutex); <------>return ret; } static int kbdlight_get_level(void) { <------>int status = 0; <------>if (!hkey_handle) <------><------>return -ENXIO; <------>if (!acpi_evalf(hkey_handle, &status, "MLCG", "dd", 0)) <------><------>return -EIO; <------>if (status < 0) <------><------>return status; <------>return status & 0x3; } static bool kbdlight_is_supported(void) { <------>int status = 0; <------>if (!hkey_handle) <------><------>return false; <------>if (!acpi_has_method(hkey_handle, "MLCG")) { <------><------>vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG is unavailable\n"); <------><------>return false; <------>} <------>if (!acpi_evalf(hkey_handle, &status, "MLCG", "qdd", 0)) { <------><------>vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG failed\n"); <------><------>return false; <------>} <------>if (status < 0) { <------><------>vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG err: %d\n", status); <------><------>return false; <------>} <------>vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG returned 0x%x\n", status); <------>/* <------> * Guessed test for keyboard backlight: <------> * <------> * Machines with backlight keyboard return: <------> * b010100000010000000XX - ThinkPad X1 Carbon 3rd <------> * b110100010010000000XX - ThinkPad x230 <------> * b010100000010000000XX - ThinkPad x240 <------> * b010100000010000000XX - ThinkPad W541 <------> * (XX is current backlight level) <------> * <------> * Machines without backlight keyboard return: <------> * b10100001000000000000 - ThinkPad x230 <------> * b10110001000000000000 - ThinkPad E430 <------> * b00000000000000000000 - ThinkPad E450 <------> * <------> * Candidate BITs for detection test (XOR): <------> * b01000000001000000000 <------> * ^ <------> */ <------>return status & BIT(9); } static int kbdlight_sysfs_set(struct led_classdev *led_cdev, <------><------><------>enum led_brightness brightness) { <------>return kbdlight_set_level(brightness); } static enum led_brightness kbdlight_sysfs_get(struct led_classdev *led_cdev) { <------>int level; <------>level = kbdlight_get_level(); <------>if (level < 0) <------><------>return 0; <------>return level; } static struct tpacpi_led_classdev tpacpi_led_kbdlight = { <------>.led_classdev = { <------><------>.name = "tpacpi::kbd_backlight", <------><------>.max_brightness = 2, <------><------>.flags = LED_BRIGHT_HW_CHANGED, <------><------>.brightness_set_blocking = &kbdlight_sysfs_set, <------><------>.brightness_get = &kbdlight_sysfs_get, <------>} }; static int __init kbdlight_init(struct ibm_init_struct *iibm) { <------>int rc; <------>vdbg_printk(TPACPI_DBG_INIT, "initializing kbdlight subdriver\n"); <------>TPACPI_ACPIHANDLE_INIT(hkey); <------>if (!kbdlight_is_supported()) { <------><------>tp_features.kbdlight = 0; <------><------>vdbg_printk(TPACPI_DBG_INIT, "kbdlight is unsupported\n"); <------><------>return 1; <------>} <------>kbdlight_brightness = kbdlight_sysfs_get(NULL); <------>tp_features.kbdlight = 1; <------>rc = led_classdev_register(&tpacpi_pdev->dev, <------><------><------><------> &tpacpi_led_kbdlight.led_classdev); <------>if (rc < 0) { <------><------>tp_features.kbdlight = 0; <------><------>return rc; <------>} <------>tpacpi_hotkey_driver_mask_set(hotkey_driver_mask | <------><------><------><------> TP_ACPI_HKEY_KBD_LIGHT_MASK); <------>return 0; } static void kbdlight_exit(void) { <------>led_classdev_unregister(&tpacpi_led_kbdlight.led_classdev); } static int kbdlight_set_level_and_update(int level) { <------>int ret; <------>struct led_classdev *led_cdev; <------>ret = kbdlight_set_level(level); <------>led_cdev = &tpacpi_led_kbdlight.led_classdev; <------>if (ret == 0 && !(led_cdev->flags & LED_SUSPENDED)) <------><------>led_cdev->brightness = level; <------>return ret; } static int kbdlight_read(struct seq_file *m) { <------>int level; <------>if (!tp_features.kbdlight) { <------><------>seq_printf(m, "status:\t\tnot supported\n"); <------>} else { <------><------>level = kbdlight_get_level(); <------><------>if (level < 0) <------><------><------>seq_printf(m, "status:\t\terror %d\n", level); <------><------>else <------><------><------>seq_printf(m, "status:\t\t%d\n", level); <------><------>seq_printf(m, "commands:\t0, 1, 2\n"); <------>} <------>return 0; } static int kbdlight_write(char *buf) { <------>char *cmd; <------>int res, level = -EINVAL; <------>if (!tp_features.kbdlight) <------><------>return -ENODEV; <------>while ((cmd = strsep(&buf, ","))) { <------><------>res = kstrtoint(cmd, 10, &level); <------><------>if (res < 0) <------><------><------>return res; <------>} <------>if (level >= 3 || level < 0) <------><------>return -EINVAL; <------>return kbdlight_set_level_and_update(level); } static void kbdlight_suspend(void) { <------>struct led_classdev *led_cdev; <------>if (!tp_features.kbdlight) <------><------>return; <------>led_cdev = &tpacpi_led_kbdlight.led_classdev; <------>led_update_brightness(led_cdev); <------>led_classdev_suspend(led_cdev); } static void kbdlight_resume(void) { <------>if (!tp_features.kbdlight) <------><------>return; <------>led_classdev_resume(&tpacpi_led_kbdlight.led_classdev); } static struct ibm_struct kbdlight_driver_data = { <------>.name = "kbdlight", <------>.read = kbdlight_read, <------>.write = kbdlight_write, <------>.suspend = kbdlight_suspend, <------>.resume = kbdlight_resume, <------>.exit = kbdlight_exit, }; /************************************************************************* * Light (thinklight) subdriver */ TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */ TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */ static int light_get_status(void) { <------>int status = 0; <------>if (tp_features.light_status) { <------><------>if (!acpi_evalf(ec_handle, &status, "KBLT", "d")) <------><------><------>return -EIO; <------><------>return (!!status); <------>} <------>return -ENXIO; } static int light_set_status(int status) { <------>int rc; <------>if (tp_features.light) { <------><------>if (cmos_handle) { <------><------><------>rc = acpi_evalf(cmos_handle, NULL, NULL, "vd", <------><------><------><------><------>(status) ? <------><------><------><------><------><------>TP_CMOS_THINKLIGHT_ON : <------><------><------><------><------><------>TP_CMOS_THINKLIGHT_OFF); <------><------>} else { <------><------><------>rc = acpi_evalf(lght_handle, NULL, NULL, "vd", <------><------><------><------><------>(status) ? 1 : 0); <------><------>} <------><------>return (rc) ? 0 : -EIO; <------>} <------>return -ENXIO; } static int light_sysfs_set(struct led_classdev *led_cdev, <------><------><------>enum led_brightness brightness) { <------>return light_set_status((brightness != LED_OFF) ? <------><------><------><------>TPACPI_LED_ON : TPACPI_LED_OFF); } static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev) { <------>return (light_get_status() == 1) ? LED_FULL : LED_OFF; } static struct tpacpi_led_classdev tpacpi_led_thinklight = { <------>.led_classdev = { <------><------>.name = "tpacpi::thinklight", <------><------>.brightness_set_blocking = &light_sysfs_set, <------><------>.brightness_get = &light_sysfs_get, <------>} }; static int __init light_init(struct ibm_init_struct *iibm) { <------>int rc; <------>vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n"); <------>if (tpacpi_is_ibm()) { <------><------>TPACPI_ACPIHANDLE_INIT(ledb); <------><------>TPACPI_ACPIHANDLE_INIT(lght); <------>} <------>TPACPI_ACPIHANDLE_INIT(cmos); <------>/* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */ <------>tp_features.light = (cmos_handle || lght_handle) && !ledb_handle; <------>if (tp_features.light) <------><------>/* light status not supported on <------><------> 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */ <------><------>tp_features.light_status = <------><------><------>acpi_evalf(ec_handle, NULL, "KBLT", "qv"); <------>vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n", <------><------>str_supported(tp_features.light), <------><------>str_supported(tp_features.light_status)); <------>if (!tp_features.light) <------><------>return 1; <------>rc = led_classdev_register(&tpacpi_pdev->dev, <------><------><------><------> &tpacpi_led_thinklight.led_classdev); <------>if (rc < 0) { <------><------>tp_features.light = 0; <------><------>tp_features.light_status = 0; <------>} else { <------><------>rc = 0; <------>} <------>return rc; } static void light_exit(void) { <------>led_classdev_unregister(&tpacpi_led_thinklight.led_classdev); } static int light_read(struct seq_file *m) { <------>int status; <------>if (!tp_features.light) { <------><------>seq_printf(m, "status:\t\tnot supported\n"); <------>} else if (!tp_features.light_status) { <------><------>seq_printf(m, "status:\t\tunknown\n"); <------><------>seq_printf(m, "commands:\ton, off\n"); <------>} else { <------><------>status = light_get_status(); <------><------>if (status < 0) <------><------><------>return status; <------><------>seq_printf(m, "status:\t\t%s\n", onoff(status, 0)); <------><------>seq_printf(m, "commands:\ton, off\n"); <------>} <------>return 0; } static int light_write(char *buf) { <------>char *cmd; <------>int newstatus = 0; <------>if (!tp_features.light) <------><------>return -ENODEV; <------>while ((cmd = strsep(&buf, ","))) { <------><------>if (strlencmp(cmd, "on") == 0) { <------><------><------>newstatus = 1; <------><------>} else if (strlencmp(cmd, "off") == 0) { <------><------><------>newstatus = 0; <------><------>} else <------><------><------>return -EINVAL; <------>} <------>return light_set_status(newstatus); } static struct ibm_struct light_driver_data = { <------>.name = "light", <------>.read = light_read, <------>.write = light_write, <------>.exit = light_exit, }; /************************************************************************* * CMOS subdriver */ /* sysfs cmos_command -------------------------------------------------- */ static ssize_t cmos_command_store(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> const char *buf, size_t count) { <------>unsigned long cmos_cmd; <------>int res; <------>if (parse_strtoul(buf, 21, &cmos_cmd)) <------><------>return -EINVAL; <------>res = issue_thinkpad_cmos_command(cmos_cmd); <------>return (res) ? res : count; } static DEVICE_ATTR_WO(cmos_command); /* --------------------------------------------------------------------- */ static int __init cmos_init(struct ibm_init_struct *iibm) { <------>int res; <------>vdbg_printk(TPACPI_DBG_INIT, <------><------>"initializing cmos commands subdriver\n"); <------>TPACPI_ACPIHANDLE_INIT(cmos); <------>vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n", <------><------>str_supported(cmos_handle != NULL)); <------>res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); <------>if (res) <------><------>return res; <------>return (cmos_handle) ? 0 : 1; } static void cmos_exit(void) { <------>device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command); } static int cmos_read(struct seq_file *m) { <------>/* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p, <------> R30, R31, T20-22, X20-21 */ <------>if (!cmos_handle) <------><------>seq_printf(m, "status:\t\tnot supported\n"); <------>else { <------><------>seq_printf(m, "status:\t\tsupported\n"); <------><------>seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n"); <------>} <------>return 0; } static int cmos_write(char *buf) { <------>char *cmd; <------>int cmos_cmd, res; <------>while ((cmd = strsep(&buf, ","))) { <------><------>if (sscanf(cmd, "%u", &cmos_cmd) == 1 && <------><------> cmos_cmd >= 0 && cmos_cmd <= 21) { <------><------><------>/* cmos_cmd set */ <------><------>} else <------><------><------>return -EINVAL; <------><------>res = issue_thinkpad_cmos_command(cmos_cmd); <------><------>if (res) <------><------><------>return res; <------>} <------>return 0; } static struct ibm_struct cmos_driver_data = { <------>.name = "cmos", <------>.read = cmos_read, <------>.write = cmos_write, <------>.exit = cmos_exit, }; /************************************************************************* * LED subdriver */ enum led_access_mode { <------>TPACPI_LED_NONE = 0, <------>TPACPI_LED_570, /* 570 */ <------>TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ <------>TPACPI_LED_NEW, /* all others */ }; enum { /* For TPACPI_LED_OLD */ <------>TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */ <------>TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */ <------>TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */ }; static enum led_access_mode led_supported; static acpi_handle led_handle; #define TPACPI_LED_NUMLEDS 16 static struct tpacpi_led_classdev *tpacpi_leds; static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS]; static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = { <------>/* there's a limit of 19 chars + NULL before 2.6.26 */ <------>"tpacpi::power", <------>"tpacpi:orange:batt", <------>"tpacpi:green:batt", <------>"tpacpi::dock_active", <------>"tpacpi::bay_active", <------>"tpacpi::dock_batt", <------>"tpacpi::unknown_led", <------>"tpacpi::standby", <------>"tpacpi::dock_status1", <------>"tpacpi::dock_status2", <------>"tpacpi::unknown_led2", <------>"tpacpi::unknown_led3", <------>"tpacpi::thinkvantage", }; #define TPACPI_SAFE_LEDS 0x1081U static inline bool tpacpi_is_led_restricted(const unsigned int led) { #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS <------>return false; #else <------>return (1U & (TPACPI_SAFE_LEDS >> led)) == 0; #endif } static int led_get_status(const unsigned int led) { <------>int status; <------>enum led_status_t led_s; <------>switch (led_supported) { <------>case TPACPI_LED_570: <------><------>if (!acpi_evalf(ec_handle, <------><------><------><------>&status, "GLED", "dd", 1 << led)) <------><------><------>return -EIO; <------><------>led_s = (status == 0) ? <------><------><------><------>TPACPI_LED_OFF : <------><------><------><------>((status == 1) ? <------><------><------><------><------>TPACPI_LED_ON : <------><------><------><------><------>TPACPI_LED_BLINK); <------><------>tpacpi_led_state_cache[led] = led_s; <------><------>return led_s; <------>default: <------><------>return -ENXIO; <------>} <------>/* not reached */ } static int led_set_status(const unsigned int led, <------><------><------> const enum led_status_t ledstatus) { <------>/* off, on, blink. Index is led_status_t */ <------>static const unsigned int led_sled_arg1[] = { 0, 1, 3 }; <------>static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 }; <------>int rc = 0; <------>switch (led_supported) { <------>case TPACPI_LED_570: <------><------>/* 570 */ <------><------>if (unlikely(led > 7)) <------><------><------>return -EINVAL; <------><------>if (unlikely(tpacpi_is_led_restricted(led))) <------><------><------>return -EPERM; <------><------>if (!acpi_evalf(led_handle, NULL, NULL, "vdd", <------><------><------><------>(1 << led), led_sled_arg1[ledstatus])) <------><------><------>return -EIO; <------><------>break; <------>case TPACPI_LED_OLD: <------><------>/* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */ <------><------>if (unlikely(led > 7)) <------><------><------>return -EINVAL; <------><------>if (unlikely(tpacpi_is_led_restricted(led))) <------><------><------>return -EPERM; <------><------>rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led)); <------><------>if (rc >= 0) <------><------><------>rc = ec_write(TPACPI_LED_EC_HLBL, <------><------><------><------> (ledstatus == TPACPI_LED_BLINK) << led); <------><------>if (rc >= 0) <------><------><------>rc = ec_write(TPACPI_LED_EC_HLCL, <------><------><------><------> (ledstatus != TPACPI_LED_OFF) << led); <------><------>break; <------>case TPACPI_LED_NEW: <------><------>/* all others */ <------><------>if (unlikely(led >= TPACPI_LED_NUMLEDS)) <------><------><------>return -EINVAL; <------><------>if (unlikely(tpacpi_is_led_restricted(led))) <------><------><------>return -EPERM; <------><------>if (!acpi_evalf(led_handle, NULL, NULL, "vdd", <------><------><------><------>led, led_led_arg1[ledstatus])) <------><------><------>return -EIO; <------><------>break; <------>default: <------><------>return -ENXIO; <------>} <------>if (!rc) <------><------>tpacpi_led_state_cache[led] = ledstatus; <------>return rc; } static int led_sysfs_set(struct led_classdev *led_cdev, <------><------><------>enum led_brightness brightness) { <------>struct tpacpi_led_classdev *data = container_of(led_cdev, <------><------><------> struct tpacpi_led_classdev, led_classdev); <------>enum led_status_t new_state; <------>if (brightness == LED_OFF) <------><------>new_state = TPACPI_LED_OFF; <------>else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK) <------><------>new_state = TPACPI_LED_ON; <------>else <------><------>new_state = TPACPI_LED_BLINK; <------>return led_set_status(data->led, new_state); } static int led_sysfs_blink_set(struct led_classdev *led_cdev, <------><------><------>unsigned long *delay_on, unsigned long *delay_off) { <------>struct tpacpi_led_classdev *data = container_of(led_cdev, <------><------><------> struct tpacpi_led_classdev, led_classdev); <------>/* Can we choose the flash rate? */ <------>if (*delay_on == 0 && *delay_off == 0) { <------><------>/* yes. set them to the hardware blink rate (1 Hz) */ <------><------>*delay_on = 500; /* ms */ <------><------>*delay_off = 500; /* ms */ <------>} else if ((*delay_on != 500) || (*delay_off != 500)) <------><------>return -EINVAL; <------>return led_set_status(data->led, TPACPI_LED_BLINK); } static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev) { <------>int rc; <------>struct tpacpi_led_classdev *data = container_of(led_cdev, <------><------><------> struct tpacpi_led_classdev, led_classdev); <------>rc = led_get_status(data->led); <------>if (rc == TPACPI_LED_OFF || rc < 0) <------><------>rc = LED_OFF; /* no error handling in led class :( */ <------>else <------><------>rc = LED_FULL; <------>return rc; } static void led_exit(void) { <------>unsigned int i; <------>for (i = 0; i < TPACPI_LED_NUMLEDS; i++) <------><------>led_classdev_unregister(&tpacpi_leds[i].led_classdev); <------>kfree(tpacpi_leds); } static int __init tpacpi_init_led(unsigned int led) { <------>/* LEDs with no name don't get registered */ <------>if (!tpacpi_led_names[led]) <------><------>return 0; <------>tpacpi_leds[led].led_classdev.brightness_set_blocking = &led_sysfs_set; <------>tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set; <------>if (led_supported == TPACPI_LED_570) <------><------>tpacpi_leds[led].led_classdev.brightness_get = &led_sysfs_get; <------>tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led]; <------>tpacpi_leds[led].led = led; <------>return led_classdev_register(&tpacpi_pdev->dev, &tpacpi_leds[led].led_classdev); } static const struct tpacpi_quirk led_useful_qtable[] __initconst = { <------>TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */ <------>TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */ <------>TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */ <------>TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */ <------>TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */ <------>TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */ <------>TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */ <------>TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */ <------>TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */ <------>TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */ <------>TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */ <------>TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */ <------>TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */ <------>TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */ <------>TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */ <------>TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */ <------>TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */ <------>TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */ <------>TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */ <------>TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */ <------>/* (1) - may have excess leds enabled on MSB */ <------>/* Defaults (order matters, keep last, don't reorder!) */ <------>{ /* Lenovo */ <------> .vendor = PCI_VENDOR_ID_LENOVO, <------> .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, <------> .quirks = 0x1fffU, <------>}, <------>{ /* IBM ThinkPads with no EC version string */ <------> .vendor = PCI_VENDOR_ID_IBM, <------> .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN, <------> .quirks = 0x00ffU, <------>}, <------>{ /* IBM ThinkPads with EC version string */ <------> .vendor = PCI_VENDOR_ID_IBM, <------> .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY, <------> .quirks = 0x00bfU, <------>}, }; static enum led_access_mode __init led_init_detect_mode(void) { <------>acpi_status status; <------>if (tpacpi_is_ibm()) { <------><------>/* 570 */ <------><------>status = acpi_get_handle(ec_handle, "SLED", &led_handle); <------><------>if (ACPI_SUCCESS(status)) <------><------><------>return TPACPI_LED_570; <------><------>/* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */ <------><------>status = acpi_get_handle(ec_handle, "SYSL", &led_handle); <------><------>if (ACPI_SUCCESS(status)) <------><------><------>return TPACPI_LED_OLD; <------>} <------>/* most others */ <------>status = acpi_get_handle(ec_handle, "LED", &led_handle); <------>if (ACPI_SUCCESS(status)) <------><------>return TPACPI_LED_NEW; <------>/* R30, R31, and unknown firmwares */ <------>led_handle = NULL; <------>return TPACPI_LED_NONE; } static int __init led_init(struct ibm_init_struct *iibm) { <------>unsigned int i; <------>int rc; <------>unsigned long useful_leds; <------>vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n"); <------>led_supported = led_init_detect_mode(); <------>if (led_supported != TPACPI_LED_NONE) { <------><------>useful_leds = tpacpi_check_quirks(led_useful_qtable, <------><------><------><------>ARRAY_SIZE(led_useful_qtable)); <------><------>if (!useful_leds) { <------><------><------>led_handle = NULL; <------><------><------>led_supported = TPACPI_LED_NONE; <------><------>} <------>} <------>vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n", <------><------>str_supported(led_supported), led_supported); <------>if (led_supported == TPACPI_LED_NONE) <------><------>return 1; <------>tpacpi_leds = kcalloc(TPACPI_LED_NUMLEDS, sizeof(*tpacpi_leds), <------><------><------> GFP_KERNEL); <------>if (!tpacpi_leds) { <------><------>pr_err("Out of memory for LED data\n"); <------><------>return -ENOMEM; <------>} <------>for (i = 0; i < TPACPI_LED_NUMLEDS; i++) { <------><------>tpacpi_leds[i].led = -1; <------><------>if (!tpacpi_is_led_restricted(i) && test_bit(i, &useful_leds)) { <------><------><------>rc = tpacpi_init_led(i); <------><------><------>if (rc < 0) { <------><------><------><------>led_exit(); <------><------><------><------>return rc; <------><------><------>} <------><------>} <------>} #ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS <------>pr_notice("warning: userspace override of important firmware LEDs is enabled\n"); #endif <------>return 0; } #define str_led_status(s) \ <------>((s) == TPACPI_LED_OFF ? "off" : \ <------><------>((s) == TPACPI_LED_ON ? "on" : "blinking")) static int led_read(struct seq_file *m) { <------>if (!led_supported) { <------><------>seq_printf(m, "status:\t\tnot supported\n"); <------><------>return 0; <------>} <------>seq_printf(m, "status:\t\tsupported\n"); <------>if (led_supported == TPACPI_LED_570) { <------><------>/* 570 */ <------><------>int i, status; <------><------>for (i = 0; i < 8; i++) { <------><------><------>status = led_get_status(i); <------><------><------>if (status < 0) <------><------><------><------>return -EIO; <------><------><------>seq_printf(m, "%d:\t\t%s\n", <------><------><------><------> i, str_led_status(status)); <------><------>} <------>} <------>seq_printf(m, "commands:\t<led> on, <led> off, <led> blink (<led> is 0-15)\n"); <------>return 0; } static int led_write(char *buf) { <------>char *cmd; <------>int led, rc; <------>enum led_status_t s; <------>if (!led_supported) <------><------>return -ENODEV; <------>while ((cmd = strsep(&buf, ","))) { <------><------>if (sscanf(cmd, "%d", &led) != 1) <------><------><------>return -EINVAL; <------><------>if (led < 0 || led > (TPACPI_LED_NUMLEDS - 1)) <------><------><------>return -ENODEV; <------><------>if (tpacpi_leds[led].led < 0) <------><------><------>return -ENODEV; <------><------>if (strstr(cmd, "off")) { <------><------><------>s = TPACPI_LED_OFF; <------><------>} else if (strstr(cmd, "on")) { <------><------><------>s = TPACPI_LED_ON; <------><------>} else if (strstr(cmd, "blink")) { <------><------><------>s = TPACPI_LED_BLINK; <------><------>} else { <------><------><------>return -EINVAL; <------><------>} <------><------>rc = led_set_status(led, s); <------><------>if (rc < 0) <------><------><------>return rc; <------>} <------>return 0; } static struct ibm_struct led_driver_data = { <------>.name = "led", <------>.read = led_read, <------>.write = led_write, <------>.exit = led_exit, }; /************************************************************************* * Beep subdriver */ TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */ #define TPACPI_BEEP_Q1 0x0001 static const struct tpacpi_quirk beep_quirk_table[] __initconst = { <------>TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */ <------>TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */ }; static int __init beep_init(struct ibm_init_struct *iibm) { <------>unsigned long quirks; <------>vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n"); <------>TPACPI_ACPIHANDLE_INIT(beep); <------>vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n", <------><------>str_supported(beep_handle != NULL)); <------>quirks = tpacpi_check_quirks(beep_quirk_table, <------><------><------><------> ARRAY_SIZE(beep_quirk_table)); <------>tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1); <------>return (beep_handle) ? 0 : 1; } static int beep_read(struct seq_file *m) { <------>if (!beep_handle) <------><------>seq_printf(m, "status:\t\tnot supported\n"); <------>else { <------><------>seq_printf(m, "status:\t\tsupported\n"); <------><------>seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n"); <------>} <------>return 0; } static int beep_write(char *buf) { <------>char *cmd; <------>int beep_cmd; <------>if (!beep_handle) <------><------>return -ENODEV; <------>while ((cmd = strsep(&buf, ","))) { <------><------>if (sscanf(cmd, "%u", &beep_cmd) == 1 && <------><------> beep_cmd >= 0 && beep_cmd <= 17) { <------><------><------>/* beep_cmd set */ <------><------>} else <------><------><------>return -EINVAL; <------><------>if (tp_features.beep_needs_two_args) { <------><------><------>if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", <------><------><------><------><------>beep_cmd, 0)) <------><------><------><------>return -EIO; <------><------>} else { <------><------><------>if (!acpi_evalf(beep_handle, NULL, NULL, "vd", <------><------><------><------><------>beep_cmd)) <------><------><------><------>return -EIO; <------><------>} <------>} <------>return 0; } static struct ibm_struct beep_driver_data = { <------>.name = "beep", <------>.read = beep_read, <------>.write = beep_write, }; /************************************************************************* * Thermal subdriver */ enum thermal_access_mode { <------>TPACPI_THERMAL_NONE = 0, /* No thermal support */ <------>TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */ <------>TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */ <------>TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */ <------>TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */ }; enum { /* TPACPI_THERMAL_TPEC_* */ <------>TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */ <------>TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */ <------>TP_EC_FUNCREV = 0xEF, /* ACPI EC Functional revision */ <------>TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */ <------>TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */ }; #define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */ struct ibm_thermal_sensors_struct { <------>s32 temp[TPACPI_MAX_THERMAL_SENSORS]; }; static enum thermal_access_mode thermal_read_mode; /* idx is zero-based */ static int thermal_get_sensor(int idx, s32 *value) { <------>int t; <------>s8 tmp; <------>char tmpi[5]; <------>t = TP_EC_THERMAL_TMP0; <------>switch (thermal_read_mode) { #if TPACPI_MAX_THERMAL_SENSORS >= 16 <------>case TPACPI_THERMAL_TPEC_16: <------><------>if (idx >= 8 && idx <= 15) { <------><------><------>t = TP_EC_THERMAL_TMP8; <------><------><------>idx -= 8; <------><------>} #endif <------><------>fallthrough; <------>case TPACPI_THERMAL_TPEC_8: <------><------>if (idx <= 7) { <------><------><------>if (!acpi_ec_read(t + idx, &tmp)) <------><------><------><------>return -EIO; <------><------><------>*value = tmp * 1000; <------><------><------>return 0; <------><------>} <------><------>break; <------>case TPACPI_THERMAL_ACPI_UPDT: <------><------>if (idx <= 7) { <------><------><------>snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); <------><------><------>if (!acpi_evalf(ec_handle, NULL, "UPDT", "v")) <------><------><------><------>return -EIO; <------><------><------>if (!acpi_evalf(ec_handle, &t, tmpi, "d")) <------><------><------><------>return -EIO; <------><------><------>*value = (t - 2732) * 100; <------><------><------>return 0; <------><------>} <------><------>break; <------>case TPACPI_THERMAL_ACPI_TMP07: <------><------>if (idx <= 7) { <------><------><------>snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx); <------><------><------>if (!acpi_evalf(ec_handle, &t, tmpi, "d")) <------><------><------><------>return -EIO; <------><------><------>if (t > 127 || t < -127) <------><------><------><------>t = TP_EC_THERMAL_TMP_NA; <------><------><------>*value = t * 1000; <------><------><------>return 0; <------><------>} <------><------>break; <------>case TPACPI_THERMAL_NONE: <------>default: <------><------>return -ENOSYS; <------>} <------>return -EINVAL; } static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s) { <------>int res, i; <------>int n; <------>n = 8; <------>i = 0; <------>if (!s) <------><------>return -EINVAL; <------>if (thermal_read_mode == TPACPI_THERMAL_TPEC_16) <------><------>n = 16; <------>for (i = 0 ; i < n; i++) { <------><------>res = thermal_get_sensor(i, &s->temp[i]); <------><------>if (res) <------><------><------>return res; <------>} <------>return n; } static void thermal_dump_all_sensors(void) { <------>int n, i; <------>struct ibm_thermal_sensors_struct t; <------>n = thermal_get_sensors(&t); <------>if (n <= 0) <------><------>return; <------>pr_notice("temperatures (Celsius):"); <------>for (i = 0; i < n; i++) { <------><------>if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA) <------><------><------>pr_cont(" %d", (int)(t.temp[i] / 1000)); <------><------>else <------><------><------>pr_cont(" N/A"); <------>} <------>pr_cont("\n"); } /* sysfs temp##_input -------------------------------------------------- */ static ssize_t thermal_temp_input_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>struct sensor_device_attribute *sensor_attr = <------><------><------><------><------>to_sensor_dev_attr(attr); <------>int idx = sensor_attr->index; <------>s32 value; <------>int res; <------>res = thermal_get_sensor(idx, &value); <------>if (res) <------><------>return res; <------>if (value == TPACPI_THERMAL_SENSOR_NA) <------><------>return -ENXIO; <------>return snprintf(buf, PAGE_SIZE, "%d\n", value); } #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \ <------> SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \ <------><------> thermal_temp_input_show, NULL, _idxB) static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = { <------>THERMAL_SENSOR_ATTR_TEMP(1, 0), <------>THERMAL_SENSOR_ATTR_TEMP(2, 1), <------>THERMAL_SENSOR_ATTR_TEMP(3, 2), <------>THERMAL_SENSOR_ATTR_TEMP(4, 3), <------>THERMAL_SENSOR_ATTR_TEMP(5, 4), <------>THERMAL_SENSOR_ATTR_TEMP(6, 5), <------>THERMAL_SENSOR_ATTR_TEMP(7, 6), <------>THERMAL_SENSOR_ATTR_TEMP(8, 7), <------>THERMAL_SENSOR_ATTR_TEMP(9, 8), <------>THERMAL_SENSOR_ATTR_TEMP(10, 9), <------>THERMAL_SENSOR_ATTR_TEMP(11, 10), <------>THERMAL_SENSOR_ATTR_TEMP(12, 11), <------>THERMAL_SENSOR_ATTR_TEMP(13, 12), <------>THERMAL_SENSOR_ATTR_TEMP(14, 13), <------>THERMAL_SENSOR_ATTR_TEMP(15, 14), <------>THERMAL_SENSOR_ATTR_TEMP(16, 15), }; #define THERMAL_ATTRS(X) \ <------>&sensor_dev_attr_thermal_temp_input[X].dev_attr.attr static struct attribute *thermal_temp_input_attr[] = { <------>THERMAL_ATTRS(8), <------>THERMAL_ATTRS(9), <------>THERMAL_ATTRS(10), <------>THERMAL_ATTRS(11), <------>THERMAL_ATTRS(12), <------>THERMAL_ATTRS(13), <------>THERMAL_ATTRS(14), <------>THERMAL_ATTRS(15), <------>THERMAL_ATTRS(0), <------>THERMAL_ATTRS(1), <------>THERMAL_ATTRS(2), <------>THERMAL_ATTRS(3), <------>THERMAL_ATTRS(4), <------>THERMAL_ATTRS(5), <------>THERMAL_ATTRS(6), <------>THERMAL_ATTRS(7), <------>NULL }; static const struct attribute_group thermal_temp_input16_group = { <------>.attrs = thermal_temp_input_attr }; static const struct attribute_group thermal_temp_input8_group = { <------>.attrs = &thermal_temp_input_attr[8] }; #undef THERMAL_SENSOR_ATTR_TEMP #undef THERMAL_ATTRS /* --------------------------------------------------------------------- */ static int __init thermal_init(struct ibm_init_struct *iibm) { <------>u8 t, ta1, ta2, ver = 0; <------>int i; <------>int acpi_tmp7; <------>int res; <------>vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n"); <------>acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv"); <------>if (thinkpad_id.ec_model) { <------><------>/* <------><------> * Direct EC access mode: sensors at registers <------><------> * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for <------><------> * non-implemented, thermal sensors return 0x80 when <------><------> * not available <------><------> * The above rule is unfortunately flawed. This has been seen with <------><------> * 0xC2 (power supply ID) causing thermal control problems. <------><------> * The EC version can be determined by offset 0xEF and at least for <------><------> * version 3 the Lenovo firmware team confirmed that registers 0xC0-0xC7 <------><------> * are not thermal registers. <------><------> */ <------><------>if (!acpi_ec_read(TP_EC_FUNCREV, &ver)) <------><------><------>pr_warn("Thinkpad ACPI EC unable to access EC version\n"); <------><------>ta1 = ta2 = 0; <------><------>for (i = 0; i < 8; i++) { <------><------><------>if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) { <------><------><------><------>ta1 |= t; <------><------><------>} else { <------><------><------><------>ta1 = 0; <------><------><------><------>break; <------><------><------>} <------><------><------>if (ver < 3) { <------><------><------><------>if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) { <------><------><------><------><------>ta2 |= t; <------><------><------><------>} else { <------><------><------><------><------>ta1 = 0; <------><------><------><------><------>break; <------><------><------><------>} <------><------><------>} <------><------>} <------><------>if (ta1 == 0) { <------><------><------>/* This is sheer paranoia, but we handle it anyway */ <------><------><------>if (acpi_tmp7) { <------><------><------><------>pr_err("ThinkPad ACPI EC access misbehaving, falling back to ACPI TMPx access mode\n"); <------><------><------><------>thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; <------><------><------>} else { <------><------><------><------>pr_err("ThinkPad ACPI EC access misbehaving, disabling thermal sensors access\n"); <------><------><------><------>thermal_read_mode = TPACPI_THERMAL_NONE; <------><------><------>} <------><------>} else { <------><------><------>if (ver >= 3) <------><------><------><------>thermal_read_mode = TPACPI_THERMAL_TPEC_8; <------><------><------>else <------><------><------><------>thermal_read_mode = <------><------><------><------><------>(ta2 != 0) ? <------><------><------><------><------>TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8; <------><------>} <------>} else if (acpi_tmp7) { <------><------>if (tpacpi_is_ibm() && <------><------> acpi_evalf(ec_handle, NULL, "UPDT", "qv")) { <------><------><------>/* 600e/x, 770e, 770x */ <------><------><------>thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT; <------><------>} else { <------><------><------>/* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */ <------><------><------>thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07; <------><------>} <------>} else { <------><------>/* temperatures not supported on 570, G4x, R30, R31, R32 */ <------><------>thermal_read_mode = TPACPI_THERMAL_NONE; <------>} <------>vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n", <------><------>str_supported(thermal_read_mode != TPACPI_THERMAL_NONE), <------><------>thermal_read_mode); <------>switch (thermal_read_mode) { <------>case TPACPI_THERMAL_TPEC_16: <------><------>res = sysfs_create_group(&tpacpi_hwmon->kobj, <------><------><------><------>&thermal_temp_input16_group); <------><------>if (res) <------><------><------>return res; <------><------>break; <------>case TPACPI_THERMAL_TPEC_8: <------>case TPACPI_THERMAL_ACPI_TMP07: <------>case TPACPI_THERMAL_ACPI_UPDT: <------><------>res = sysfs_create_group(&tpacpi_hwmon->kobj, <------><------><------><------>&thermal_temp_input8_group); <------><------>if (res) <------><------><------>return res; <------><------>break; <------>case TPACPI_THERMAL_NONE: <------>default: <------><------>return 1; <------>} <------>return 0; } static void thermal_exit(void) { <------>switch (thermal_read_mode) { <------>case TPACPI_THERMAL_TPEC_16: <------><------>sysfs_remove_group(&tpacpi_hwmon->kobj, <------><------><------><------> &thermal_temp_input16_group); <------><------>break; <------>case TPACPI_THERMAL_TPEC_8: <------>case TPACPI_THERMAL_ACPI_TMP07: <------>case TPACPI_THERMAL_ACPI_UPDT: <------><------>sysfs_remove_group(&tpacpi_hwmon->kobj, <------><------><------><------> &thermal_temp_input8_group); <------><------>break; <------>case TPACPI_THERMAL_NONE: <------>default: <------><------>break; <------>} } static int thermal_read(struct seq_file *m) { <------>int n, i; <------>struct ibm_thermal_sensors_struct t; <------>n = thermal_get_sensors(&t); <------>if (unlikely(n < 0)) <------><------>return n; <------>seq_printf(m, "temperatures:\t"); <------>if (n > 0) { <------><------>for (i = 0; i < (n - 1); i++) <------><------><------>seq_printf(m, "%d ", t.temp[i] / 1000); <------><------>seq_printf(m, "%d\n", t.temp[i] / 1000); <------>} else <------><------>seq_printf(m, "not supported\n"); <------>return 0; } static struct ibm_struct thermal_driver_data = { <------>.name = "thermal", <------>.read = thermal_read, <------>.exit = thermal_exit, }; /************************************************************************* * Backlight/brightness subdriver */ #define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen" /* * ThinkPads can read brightness from two places: EC HBRV (0x31), or * CMOS NVRAM byte 0x5E, bits 0-3. * * EC HBRV (0x31) has the following layout * Bit 7: unknown function * Bit 6: unknown function * Bit 5: Z: honour scale changes, NZ: ignore scale changes * Bit 4: must be set to zero to avoid problems * Bit 3-0: backlight brightness level * * brightness_get_raw returns status data in the HBRV layout * * WARNING: The X61 has been verified to use HBRV for something else, so * this should be used _only_ on IBM ThinkPads, and maybe with some careful * testing on the very early *60 Lenovo models... */ enum { <------>TP_EC_BACKLIGHT = 0x31, <------>/* TP_EC_BACKLIGHT bitmasks */ <------>TP_EC_BACKLIGHT_LVLMSK = 0x1F, <------>TP_EC_BACKLIGHT_CMDMSK = 0xE0, <------>TP_EC_BACKLIGHT_MAPSW = 0x20, }; enum tpacpi_brightness_access_mode { <------>TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */ <------>TPACPI_BRGHT_MODE_EC, /* EC control */ <------>TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */ <------>TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */ <------>TPACPI_BRGHT_MODE_MAX }; static struct backlight_device *ibm_backlight_device; static enum tpacpi_brightness_access_mode brightness_mode = <------><------>TPACPI_BRGHT_MODE_MAX; static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */ static struct mutex brightness_mutex; /* NVRAM brightness access, * call with brightness_mutex held! */ static unsigned int tpacpi_brightness_nvram_get(void) { <------>u8 lnvram; <------>lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS) <------><------> & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) <------><------> >> TP_NVRAM_POS_LEVEL_BRIGHTNESS; <------>lnvram &= bright_maxlvl; <------>return lnvram; } static void tpacpi_brightness_checkpoint_nvram(void) { <------>u8 lec = 0; <------>u8 b_nvram; <------>if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM) <------><------>return; <------>vdbg_printk(TPACPI_DBG_BRGHT, <------><------>"trying to checkpoint backlight level to NVRAM...\n"); <------>if (mutex_lock_killable(&brightness_mutex) < 0) <------><------>return; <------>if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) <------><------>goto unlock; <------>lec &= TP_EC_BACKLIGHT_LVLMSK; <------>b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS); <------>if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS) <------><------><------> >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) { <------><------>/* NVRAM needs update */ <------><------>b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS << <------><------><------><------>TP_NVRAM_POS_LEVEL_BRIGHTNESS); <------><------>b_nvram |= lec; <------><------>nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS); <------><------>dbg_printk(TPACPI_DBG_BRGHT, <------><------><------> "updated NVRAM backlight level to %u (0x%02x)\n", <------><------><------> (unsigned int) lec, (unsigned int) b_nvram); <------>} else <------><------>vdbg_printk(TPACPI_DBG_BRGHT, <------><------><------> "NVRAM backlight level already is %u (0x%02x)\n", <------><------><------> (unsigned int) lec, (unsigned int) b_nvram); unlock: <------>mutex_unlock(&brightness_mutex); } /* call with brightness_mutex held! */ static int tpacpi_brightness_get_raw(int *status) { <------>u8 lec = 0; <------>switch (brightness_mode) { <------>case TPACPI_BRGHT_MODE_UCMS_STEP: <------><------>*status = tpacpi_brightness_nvram_get(); <------><------>return 0; <------>case TPACPI_BRGHT_MODE_EC: <------>case TPACPI_BRGHT_MODE_ECNVRAM: <------><------>if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) <------><------><------>return -EIO; <------><------>*status = lec; <------><------>return 0; <------>default: <------><------>return -ENXIO; <------>} } /* call with brightness_mutex held! */ /* do NOT call with illegal backlight level value */ static int tpacpi_brightness_set_ec(unsigned int value) { <------>u8 lec = 0; <------>if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec))) <------><------>return -EIO; <------>if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT, <------><------><------><------>(lec & TP_EC_BACKLIGHT_CMDMSK) | <------><------><------><------>(value & TP_EC_BACKLIGHT_LVLMSK)))) <------><------>return -EIO; <------>return 0; } /* call with brightness_mutex held! */ static int tpacpi_brightness_set_ucmsstep(unsigned int value) { <------>int cmos_cmd, inc; <------>unsigned int current_value, i; <------>current_value = tpacpi_brightness_nvram_get(); <------>if (value == current_value) <------><------>return 0; <------>cmos_cmd = (value > current_value) ? <------><------><------>TP_CMOS_BRIGHTNESS_UP : <------><------><------>TP_CMOS_BRIGHTNESS_DOWN; <------>inc = (value > current_value) ? 1 : -1; <------>for (i = current_value; i != value; i += inc) <------><------>if (issue_thinkpad_cmos_command(cmos_cmd)) <------><------><------>return -EIO; <------>return 0; } /* May return EINTR which can always be mapped to ERESTARTSYS */ static int brightness_set(unsigned int value) { <------>int res; <------>if (value > bright_maxlvl) <------><------>return -EINVAL; <------>vdbg_printk(TPACPI_DBG_BRGHT, <------><------><------>"set backlight level to %d\n", value); <------>res = mutex_lock_killable(&brightness_mutex); <------>if (res < 0) <------><------>return res; <------>switch (brightness_mode) { <------>case TPACPI_BRGHT_MODE_EC: <------>case TPACPI_BRGHT_MODE_ECNVRAM: <------><------>res = tpacpi_brightness_set_ec(value); <------><------>break; <------>case TPACPI_BRGHT_MODE_UCMS_STEP: <------><------>res = tpacpi_brightness_set_ucmsstep(value); <------><------>break; <------>default: <------><------>res = -ENXIO; <------>} <------>mutex_unlock(&brightness_mutex); <------>return res; } /* sysfs backlight class ----------------------------------------------- */ static int brightness_update_status(struct backlight_device *bd) { <------>unsigned int level = <------><------>(bd->props.fb_blank == FB_BLANK_UNBLANK && <------><------> bd->props.power == FB_BLANK_UNBLANK) ? <------><------><------><------>bd->props.brightness : 0; <------>dbg_printk(TPACPI_DBG_BRGHT, <------><------><------>"backlight: attempt to set level to %d\n", <------><------><------>level); <------>/* it is the backlight class's job (caller) to handle <------> * EINTR and other errors properly */ <------>return brightness_set(level); } static int brightness_get(struct backlight_device *bd) { <------>int status, res; <------>res = mutex_lock_killable(&brightness_mutex); <------>if (res < 0) <------><------>return 0; <------>res = tpacpi_brightness_get_raw(&status); <------>mutex_unlock(&brightness_mutex); <------>if (res < 0) <------><------>return 0; <------>return status & TP_EC_BACKLIGHT_LVLMSK; } static void tpacpi_brightness_notify_change(void) { <------>backlight_force_update(ibm_backlight_device, <------><------><------> BACKLIGHT_UPDATE_HOTKEY); } static const struct backlight_ops ibm_backlight_data = { <------>.get_brightness = brightness_get, <------>.update_status = brightness_update_status, }; /* --------------------------------------------------------------------- */ /* * Call _BCL method of video device. On some ThinkPads this will * switch the firmware to the ACPI brightness control mode. */ static int __init tpacpi_query_bcl_levels(acpi_handle handle) { <------>struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; <------>union acpi_object *obj; <------>struct acpi_device *device, *child; <------>int rc; <------>if (acpi_bus_get_device(handle, &device)) <------><------>return 0; <------>rc = 0; <------>list_for_each_entry(child, &device->children, node) { <------><------>acpi_status status = acpi_evaluate_object(child->handle, "_BCL", <------><------><------><------><------><------><------> NULL, &buffer); <------><------>if (ACPI_FAILURE(status)) { <------><------><------>buffer.length = ACPI_ALLOCATE_BUFFER; <------><------><------>continue; <------><------>} <------><------>obj = (union acpi_object *)buffer.pointer; <------><------>if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { <------><------><------>pr_err("Unknown _BCL data, please report this to %s\n", <------><------><------><------>TPACPI_MAIL); <------><------><------>rc = 0; <------><------>} else { <------><------><------>rc = obj->package.count; <------><------>} <------><------>break; <------>} <------>kfree(buffer.pointer); <------>return rc; } /* * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map */ static unsigned int __init tpacpi_check_std_acpi_brightness_support(void) { <------>acpi_handle video_device; <------>int bcl_levels = 0; <------>tpacpi_acpi_handle_locate("video", NULL, &video_device); <------>if (video_device) <------><------>bcl_levels = tpacpi_query_bcl_levels(video_device); <------>tp_features.bright_acpimode = (bcl_levels > 0); <------>return (bcl_levels > 2) ? (bcl_levels - 2) : 0; } /* * These are only useful for models that have only one possibility * of GPU. If the BIOS model handles both ATI and Intel, don't use * these quirks. */ #define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */ #define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */ #define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */ static const struct tpacpi_quirk brightness_quirk_table[] __initconst = { <------>/* Models with ATI GPUs known to require ECNVRAM mode */ <------>TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */ <------>/* Models with ATI GPUs that can use ECNVRAM */ <------>TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */ <------>TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), <------>TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */ <------>TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), <------>/* Models with Intel Extreme Graphics 2 */ <------>TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */ <------>TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), <------>TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC), <------>/* Models with Intel GMA900 */ <------>TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */ <------>TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */ <------>TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */ }; /* * Returns < 0 for error, otherwise sets tp_features.bright_* * and bright_maxlvl. */ static void __init tpacpi_detect_brightness_capabilities(void) { <------>unsigned int b; <------>vdbg_printk(TPACPI_DBG_INIT, <------><------> "detecting firmware brightness interface capabilities\n"); <------>/* we could run a quirks check here (same table used by <------> * brightness_init) if needed */ <------>/* <------> * We always attempt to detect acpi support, so as to switch <------> * Lenovo Vista BIOS to ACPI brightness mode even if we are not <------> * going to publish a backlight interface <------> */ <------>b = tpacpi_check_std_acpi_brightness_support(); <------>switch (b) { <------>case 16: <------><------>bright_maxlvl = 15; <------><------>break; <------>case 8: <------>case 0: <------><------>bright_maxlvl = 7; <------><------>break; <------>default: <------><------>tp_features.bright_unkfw = 1; <------><------>bright_maxlvl = b - 1; <------>} <------>pr_debug("detected %u brightness levels\n", bright_maxlvl + 1); } static int __init brightness_init(struct ibm_init_struct *iibm) { <------>struct backlight_properties props; <------>int b; <------>unsigned long quirks; <------>vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n"); <------>mutex_init(&brightness_mutex); <------>quirks = tpacpi_check_quirks(brightness_quirk_table, <------><------><------><------>ARRAY_SIZE(brightness_quirk_table)); <------>/* tpacpi_detect_brightness_capabilities() must have run already */ <------>/* if it is unknown, we don't handle it: it wouldn't be safe */ <------>if (tp_features.bright_unkfw) <------><------>return 1; <------>if (!brightness_enable) { <------><------>dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, <------><------><------> "brightness support disabled by module parameter\n"); <------><------>return 1; <------>} <------>if (acpi_video_get_backlight_type() != acpi_backlight_vendor) { <------><------>if (brightness_enable > 1) { <------><------><------>pr_info("Standard ACPI backlight interface available, not loading native one\n"); <------><------><------>return 1; <------><------>} else if (brightness_enable == 1) { <------><------><------>pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n"); <------><------><------>return 1; <------><------>} <------>} else if (!tp_features.bright_acpimode) { <------><------>pr_notice("ACPI backlight interface not available\n"); <------><------>return 1; <------>} <------>pr_notice("ACPI native brightness control enabled\n"); <------>/* <------> * Check for module parameter bogosity, note that we <------> * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be <------> * able to detect "unspecified" <------> */ <------>if (brightness_mode > TPACPI_BRGHT_MODE_MAX) <------><------>return -EINVAL; <------>/* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */ <------>if (brightness_mode == TPACPI_BRGHT_MODE_AUTO || <------> brightness_mode == TPACPI_BRGHT_MODE_MAX) { <------><------>if (quirks & TPACPI_BRGHT_Q_EC) <------><------><------>brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM; <------><------>else <------><------><------>brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP; <------><------>dbg_printk(TPACPI_DBG_BRGHT, <------><------><------> "driver auto-selected brightness_mode=%d\n", <------><------><------> brightness_mode); <------>} <------>/* Safety */ <------>if (!tpacpi_is_ibm() && <------> (brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM || <------> brightness_mode == TPACPI_BRGHT_MODE_EC)) <------><------>return -EINVAL; <------>if (tpacpi_brightness_get_raw(&b) < 0) <------><------>return 1; <------>memset(&props, 0, sizeof(struct backlight_properties)); <------>props.type = BACKLIGHT_PLATFORM; <------>props.max_brightness = bright_maxlvl; <------>props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; <------>ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, <------><------><------><------><------><------><------> NULL, NULL, <------><------><------><------><------><------><------> &ibm_backlight_data, <------><------><------><------><------><------><------> &props); <------>if (IS_ERR(ibm_backlight_device)) { <------><------>int rc = PTR_ERR(ibm_backlight_device); <------><------>ibm_backlight_device = NULL; <------><------>pr_err("Could not register backlight device\n"); <------><------>return rc; <------>} <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, <------><------><------>"brightness is supported\n"); <------>if (quirks & TPACPI_BRGHT_Q_ASK) { <------><------>pr_notice("brightness: will use unverified default: brightness_mode=%d\n", <------><------><------> brightness_mode); <------><------>pr_notice("brightness: please report to %s whether it works well or not on your ThinkPad\n", <------><------><------> TPACPI_MAIL); <------>} <------>/* Added by mistake in early 2007. Probably useless, but it could <------> * be working around some unknown firmware problem where the value <------> * read at startup doesn't match the real hardware state... so leave <------> * it in place just in case */ <------>backlight_update_status(ibm_backlight_device); <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT, <------><------> "brightness: registering brightness hotkeys as change notification\n"); <------>tpacpi_hotkey_driver_mask_set(hotkey_driver_mask <------><------><------><------>| TP_ACPI_HKEY_BRGHTUP_MASK <------><------><------><------>| TP_ACPI_HKEY_BRGHTDWN_MASK); <------>return 0; } static void brightness_suspend(void) { <------>tpacpi_brightness_checkpoint_nvram(); } static void brightness_shutdown(void) { <------>tpacpi_brightness_checkpoint_nvram(); } static void brightness_exit(void) { <------>if (ibm_backlight_device) { <------><------>vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT, <------><------><------> "calling backlight_device_unregister()\n"); <------><------>backlight_device_unregister(ibm_backlight_device); <------>} <------>tpacpi_brightness_checkpoint_nvram(); } static int brightness_read(struct seq_file *m) { <------>int level; <------>level = brightness_get(NULL); <------>if (level < 0) { <------><------>seq_printf(m, "level:\t\tunreadable\n"); <------>} else { <------><------>seq_printf(m, "level:\t\t%d\n", level); <------><------>seq_printf(m, "commands:\tup, down\n"); <------><------>seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", <------><------><------> bright_maxlvl); <------>} <------>return 0; } static int brightness_write(char *buf) { <------>int level; <------>int rc; <------>char *cmd; <------>level = brightness_get(NULL); <------>if (level < 0) <------><------>return level; <------>while ((cmd = strsep(&buf, ","))) { <------><------>if (strlencmp(cmd, "up") == 0) { <------><------><------>if (level < bright_maxlvl) <------><------><------><------>level++; <------><------>} else if (strlencmp(cmd, "down") == 0) { <------><------><------>if (level > 0) <------><------><------><------>level--; <------><------>} else if (sscanf(cmd, "level %d", &level) == 1 && <------><------><------> level >= 0 && level <= bright_maxlvl) { <------><------><------>/* new level set */ <------><------>} else <------><------><------>return -EINVAL; <------>} <------>tpacpi_disclose_usertask("procfs brightness", <------><------><------>"set level to %d\n", level); <------>/* <------> * Now we know what the final level should be, so we try to set it. <------> * Doing it this way makes the syscall restartable in case of EINTR <------> */ <------>rc = brightness_set(level); <------>if (!rc && ibm_backlight_device) <------><------>backlight_force_update(ibm_backlight_device, <------><------><------><------><------>BACKLIGHT_UPDATE_SYSFS); <------>return (rc == -EINTR) ? -ERESTARTSYS : rc; } static struct ibm_struct brightness_driver_data = { <------>.name = "brightness", <------>.read = brightness_read, <------>.write = brightness_write, <------>.exit = brightness_exit, <------>.suspend = brightness_suspend, <------>.shutdown = brightness_shutdown, }; /************************************************************************* * Volume subdriver */ /* * IBM ThinkPads have a simple volume controller with MUTE gating. * Very early Lenovo ThinkPads follow the IBM ThinkPad spec. * * Since the *61 series (and probably also the later *60 series), Lenovo * ThinkPads only implement the MUTE gate. * * EC register 0x30 * Bit 6: MUTE (1 mutes sound) * Bit 3-0: Volume * Other bits should be zero as far as we know. * * This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and * bits 3-0 (volume). Other bits in NVRAM may have other functions, * such as bit 7 which is used to detect repeated presses of MUTE, * and we leave them unchanged. * * On newer Lenovo ThinkPads, the EC can automatically change the volume * in response to user input. Unfortunately, this rarely works well. * The laptop changes the state of its internal MUTE gate and, on some * models, sends KEY_MUTE, causing any user code that responds to the * mute button to get confused. The hardware MUTE gate is also * unnecessary, since user code can handle the mute button without * kernel or EC help. * * To avoid confusing userspace, we simply disable all EC-based mute * and volume controls when possible. */ #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT #define TPACPI_ALSA_DRVNAME "ThinkPad EC" #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME #if SNDRV_CARDS <= 32 #define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1) #else #define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1) #endif static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */ static char *alsa_id = "ThinkPadEC"; static bool alsa_enable = SNDRV_DEFAULT_ENABLE1; struct tpacpi_alsa_data { <------>struct snd_card *card; <------>struct snd_ctl_elem_id *ctl_mute_id; <------>struct snd_ctl_elem_id *ctl_vol_id; }; static struct snd_card *alsa_card; enum { <------>TP_EC_AUDIO = 0x30, <------>/* TP_EC_AUDIO bits */ <------>TP_EC_AUDIO_MUTESW = 6, <------>/* TP_EC_AUDIO bitmasks */ <------>TP_EC_AUDIO_LVL_MSK = 0x0F, <------>TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW), <------>/* Maximum volume */ <------>TP_EC_VOLUME_MAX = 14, }; enum tpacpi_volume_access_mode { <------>TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */ <------>TPACPI_VOL_MODE_EC, /* Pure EC control */ <------>TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */ <------>TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */ <------>TPACPI_VOL_MODE_MAX }; enum tpacpi_volume_capabilities { <------>TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */ <------>TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */ <------>TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */ <------>TPACPI_VOL_CAP_MAX }; enum tpacpi_mute_btn_mode { <------>TP_EC_MUTE_BTN_LATCH = 0, /* Mute mutes; up/down unmutes */ <------>/* We don't know what mode 1 is. */ <------>TP_EC_MUTE_BTN_NONE = 2, /* Mute and up/down are just keys */ <------>TP_EC_MUTE_BTN_TOGGLE = 3, /* Mute toggles; up/down unmutes */ }; static enum tpacpi_volume_access_mode volume_mode = <------>TPACPI_VOL_MODE_MAX; static enum tpacpi_volume_capabilities volume_capabilities; static bool volume_control_allowed; static bool software_mute_requested = true; static bool software_mute_active; static int software_mute_orig_mode; /* * Used to syncronize writers to TP_EC_AUDIO and * TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write */ static struct mutex volume_mutex; static void tpacpi_volume_checkpoint_nvram(void) { <------>u8 lec = 0; <------>u8 b_nvram; <------>u8 ec_mask; <------>if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) <------><------>return; <------>if (!volume_control_allowed) <------><------>return; <------>if (software_mute_active) <------><------>return; <------>vdbg_printk(TPACPI_DBG_MIXER, <------><------>"trying to checkpoint mixer state to NVRAM...\n"); <------>if (tp_features.mixer_no_level_control) <------><------>ec_mask = TP_EC_AUDIO_MUTESW_MSK; <------>else <------><------>ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK; <------>if (mutex_lock_killable(&volume_mutex) < 0) <------><------>return; <------>if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec))) <------><------>goto unlock; <------>lec &= ec_mask; <------>b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER); <------>if (lec != (b_nvram & ec_mask)) { <------><------>/* NVRAM needs update */ <------><------>b_nvram &= ~ec_mask; <------><------>b_nvram |= lec; <------><------>nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER); <------><------>dbg_printk(TPACPI_DBG_MIXER, <------><------><------> "updated NVRAM mixer status to 0x%02x (0x%02x)\n", <------><------><------> (unsigned int) lec, (unsigned int) b_nvram); <------>} else { <------><------>vdbg_printk(TPACPI_DBG_MIXER, <------><------><------> "NVRAM mixer status already is 0x%02x (0x%02x)\n", <------><------><------> (unsigned int) lec, (unsigned int) b_nvram); <------>} unlock: <------>mutex_unlock(&volume_mutex); } static int volume_get_status_ec(u8 *status) { <------>u8 s; <------>if (!acpi_ec_read(TP_EC_AUDIO, &s)) <------><------>return -EIO; <------>*status = s; <------>dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s); <------>return 0; } static int volume_get_status(u8 *status) { <------>return volume_get_status_ec(status); } static int volume_set_status_ec(const u8 status) { <------>if (!acpi_ec_write(TP_EC_AUDIO, status)) <------><------>return -EIO; <------>dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status); <------>/* <------> * On X200s, and possibly on others, it can take a while for <------> * reads to become correct. <------> */ <------>msleep(1); <------>return 0; } static int volume_set_status(const u8 status) { <------>return volume_set_status_ec(status); } /* returns < 0 on error, 0 on no change, 1 on change */ static int __volume_set_mute_ec(const bool mute) { <------>int rc; <------>u8 s, n; <------>if (mutex_lock_killable(&volume_mutex) < 0) <------><------>return -EINTR; <------>rc = volume_get_status_ec(&s); <------>if (rc) <------><------>goto unlock; <------>n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK : <------><------> s & ~TP_EC_AUDIO_MUTESW_MSK; <------>if (n != s) { <------><------>rc = volume_set_status_ec(n); <------><------>if (!rc) <------><------><------>rc = 1; <------>} unlock: <------>mutex_unlock(&volume_mutex); <------>return rc; } static int volume_alsa_set_mute(const bool mute) { <------>dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n", <------><------> (mute) ? "" : "un"); <------>return __volume_set_mute_ec(mute); } static int volume_set_mute(const bool mute) { <------>int rc; <------>dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n", <------><------> (mute) ? "" : "un"); <------>rc = __volume_set_mute_ec(mute); <------>return (rc < 0) ? rc : 0; } /* returns < 0 on error, 0 on no change, 1 on change */ static int __volume_set_volume_ec(const u8 vol) { <------>int rc; <------>u8 s, n; <------>if (vol > TP_EC_VOLUME_MAX) <------><------>return -EINVAL; <------>if (mutex_lock_killable(&volume_mutex) < 0) <------><------>return -EINTR; <------>rc = volume_get_status_ec(&s); <------>if (rc) <------><------>goto unlock; <------>n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol; <------>if (n != s) { <------><------>rc = volume_set_status_ec(n); <------><------>if (!rc) <------><------><------>rc = 1; <------>} unlock: <------>mutex_unlock(&volume_mutex); <------>return rc; } static int volume_set_software_mute(bool startup) { <------>int result; <------>if (!tpacpi_is_lenovo()) <------><------>return -ENODEV; <------>if (startup) { <------><------>if (!acpi_evalf(ec_handle, &software_mute_orig_mode, <------><------><------><------>"HAUM", "qd")) <------><------><------>return -EIO; <------><------>dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, <------><------><------> "Initial HAUM setting was %d\n", <------><------><------> software_mute_orig_mode); <------>} <------>if (!acpi_evalf(ec_handle, &result, "SAUM", "qdd", <------><------><------>(int)TP_EC_MUTE_BTN_NONE)) <------><------>return -EIO; <------>if (result != TP_EC_MUTE_BTN_NONE) <------><------>pr_warn("Unexpected SAUM result %d\n", <------><------><------>result); <------>/* <------> * In software mute mode, the standard codec controls take <------> * precendence, so we unmute the ThinkPad HW switch at <------> * startup. Just on case there are SAUM-capable ThinkPads <------> * with level controls, set max HW volume as well. <------> */ <------>if (tp_features.mixer_no_level_control) <------><------>result = volume_set_mute(false); <------>else <------><------>result = volume_set_status(TP_EC_VOLUME_MAX); <------>if (result != 0) <------><------>pr_warn("Failed to unmute the HW mute switch\n"); <------>return 0; } static void volume_exit_software_mute(void) { <------>int r; <------>if (!acpi_evalf(ec_handle, &r, "SAUM", "qdd", software_mute_orig_mode) <------> || r != software_mute_orig_mode) <------><------>pr_warn("Failed to restore mute mode\n"); } static int volume_alsa_set_volume(const u8 vol) { <------>dbg_printk(TPACPI_DBG_MIXER, <------><------> "ALSA: trying to set volume level to %hu\n", vol); <------>return __volume_set_volume_ec(vol); } static void volume_alsa_notify_change(void) { <------>struct tpacpi_alsa_data *d; <------>if (alsa_card && alsa_card->private_data) { <------><------>d = alsa_card->private_data; <------><------>if (d->ctl_mute_id) <------><------><------>snd_ctl_notify(alsa_card, <------><------><------><------><------>SNDRV_CTL_EVENT_MASK_VALUE, <------><------><------><------><------>d->ctl_mute_id); <------><------>if (d->ctl_vol_id) <------><------><------>snd_ctl_notify(alsa_card, <------><------><------><------><------>SNDRV_CTL_EVENT_MASK_VALUE, <------><------><------><------><------>d->ctl_vol_id); <------>} } static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol, <------><------><------><------>struct snd_ctl_elem_info *uinfo) { <------>uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; <------>uinfo->count = 1; <------>uinfo->value.integer.min = 0; <------>uinfo->value.integer.max = TP_EC_VOLUME_MAX; <------>return 0; } static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol, <------><------><------><------>struct snd_ctl_elem_value *ucontrol) { <------>u8 s; <------>int rc; <------>rc = volume_get_status(&s); <------>if (rc < 0) <------><------>return rc; <------>ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK; <------>return 0; } static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol, <------><------><------><------>struct snd_ctl_elem_value *ucontrol) { <------>tpacpi_disclose_usertask("ALSA", "set volume to %ld\n", <------><------><------><------> ucontrol->value.integer.value[0]); <------>return volume_alsa_set_volume(ucontrol->value.integer.value[0]); } #define volume_alsa_mute_info snd_ctl_boolean_mono_info static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol, <------><------><------><------>struct snd_ctl_elem_value *ucontrol) { <------>u8 s; <------>int rc; <------>rc = volume_get_status(&s); <------>if (rc < 0) <------><------>return rc; <------>ucontrol->value.integer.value[0] = <------><------><------><------>(s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1; <------>return 0; } static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol, <------><------><------><------>struct snd_ctl_elem_value *ucontrol) { <------>tpacpi_disclose_usertask("ALSA", "%smute\n", <------><------><------><------> ucontrol->value.integer.value[0] ? <------><------><------><------><------>"un" : ""); <------>return volume_alsa_set_mute(!ucontrol->value.integer.value[0]); } static struct snd_kcontrol_new volume_alsa_control_vol __initdata = { <------>.iface = SNDRV_CTL_ELEM_IFACE_MIXER, <------>.name = "Console Playback Volume", <------>.index = 0, <------>.access = SNDRV_CTL_ELEM_ACCESS_READ, <------>.info = volume_alsa_vol_info, <------>.get = volume_alsa_vol_get, }; static struct snd_kcontrol_new volume_alsa_control_mute __initdata = { <------>.iface = SNDRV_CTL_ELEM_IFACE_MIXER, <------>.name = "Console Playback Switch", <------>.index = 0, <------>.access = SNDRV_CTL_ELEM_ACCESS_READ, <------>.info = volume_alsa_mute_info, <------>.get = volume_alsa_mute_get, }; static void volume_suspend(void) { <------>tpacpi_volume_checkpoint_nvram(); } static void volume_resume(void) { <------>if (software_mute_active) { <------><------>if (volume_set_software_mute(false) < 0) <------><------><------>pr_warn("Failed to restore software mute\n"); <------>} else { <------><------>volume_alsa_notify_change(); <------>} } static void volume_shutdown(void) { <------>tpacpi_volume_checkpoint_nvram(); } static void volume_exit(void) { <------>if (alsa_card) { <------><------>snd_card_free(alsa_card); <------><------>alsa_card = NULL; <------>} <------>tpacpi_volume_checkpoint_nvram(); <------>if (software_mute_active) <------><------>volume_exit_software_mute(); } static int __init volume_create_alsa_mixer(void) { <------>struct snd_card *card; <------>struct tpacpi_alsa_data *data; <------>struct snd_kcontrol *ctl_vol; <------>struct snd_kcontrol *ctl_mute; <------>int rc; <------>rc = snd_card_new(&tpacpi_pdev->dev, <------><------><------> alsa_index, alsa_id, THIS_MODULE, <------><------><------> sizeof(struct tpacpi_alsa_data), &card); <------>if (rc < 0 || !card) { <------><------>pr_err("Failed to create ALSA card structures: %d\n", rc); <------><------>return 1; <------>} <------>BUG_ON(!card->private_data); <------>data = card->private_data; <------>data->card = card; <------>strlcpy(card->driver, TPACPI_ALSA_DRVNAME, <------><------>sizeof(card->driver)); <------>strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME, <------><------>sizeof(card->shortname)); <------>snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s", <------><------> (thinkpad_id.ec_version_str) ? <------><------><------>thinkpad_id.ec_version_str : "(unknown)"); <------>snprintf(card->longname, sizeof(card->longname), <------><------> "%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO, <------><------> (thinkpad_id.ec_version_str) ? <------><------><------>thinkpad_id.ec_version_str : "unknown"); <------>if (volume_control_allowed) { <------><------>volume_alsa_control_vol.put = volume_alsa_vol_put; <------><------>volume_alsa_control_vol.access = <------><------><------><------>SNDRV_CTL_ELEM_ACCESS_READWRITE; <------><------>volume_alsa_control_mute.put = volume_alsa_mute_put; <------><------>volume_alsa_control_mute.access = <------><------><------><------>SNDRV_CTL_ELEM_ACCESS_READWRITE; <------>} <------>if (!tp_features.mixer_no_level_control) { <------><------>ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL); <------><------>rc = snd_ctl_add(card, ctl_vol); <------><------>if (rc < 0) { <------><------><------>pr_err("Failed to create ALSA volume control: %d\n", <------><------><------> rc); <------><------><------>goto err_exit; <------><------>} <------><------>data->ctl_vol_id = &ctl_vol->id; <------>} <------>ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL); <------>rc = snd_ctl_add(card, ctl_mute); <------>if (rc < 0) { <------><------>pr_err("Failed to create ALSA mute control: %d\n", rc); <------><------>goto err_exit; <------>} <------>data->ctl_mute_id = &ctl_mute->id; <------>rc = snd_card_register(card); <------>if (rc < 0) { <------><------>pr_err("Failed to register ALSA card: %d\n", rc); <------><------>goto err_exit; <------>} <------>alsa_card = card; <------>return 0; err_exit: <------>snd_card_free(card); <------>return 1; } #define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */ #define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */ static const struct tpacpi_quirk volume_quirk_table[] __initconst = { <------>/* Whitelist volume level on all IBM by default */ <------>{ .vendor = PCI_VENDOR_ID_IBM, <------> .bios = TPACPI_MATCH_ANY, <------> .ec = TPACPI_MATCH_ANY, <------> .quirks = TPACPI_VOL_Q_LEVEL }, <------>/* Lenovo models with volume control (needs confirmation) */ <------>TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */ <------>TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */ <------>TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */ <------>TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */ <------>TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */ <------>TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */ <------>TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */ <------>/* Whitelist mute-only on all Lenovo by default */ <------>{ .vendor = PCI_VENDOR_ID_LENOVO, <------> .bios = TPACPI_MATCH_ANY, <------> .ec = TPACPI_MATCH_ANY, <------> .quirks = TPACPI_VOL_Q_MUTEONLY } }; static int __init volume_init(struct ibm_init_struct *iibm) { <------>unsigned long quirks; <------>int rc; <------>vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n"); <------>mutex_init(&volume_mutex); <------>/* <------> * Check for module parameter bogosity, note that we <------> * init volume_mode to TPACPI_VOL_MODE_MAX in order to be <------> * able to detect "unspecified" <------> */ <------>if (volume_mode > TPACPI_VOL_MODE_MAX) <------><------>return -EINVAL; <------>if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) { <------><------>pr_err("UCMS step volume mode not implemented, please contact %s\n", <------><------> TPACPI_MAIL); <------><------>return 1; <------>} <------>if (volume_capabilities >= TPACPI_VOL_CAP_MAX) <------><------>return -EINVAL; <------>/* <------> * The ALSA mixer is our primary interface. <------> * When disabled, don't install the subdriver at all <------> */ <------>if (!alsa_enable) { <------><------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, <------><------><------> "ALSA mixer disabled by parameter, not loading volume subdriver...\n"); <------><------>return 1; <------>} <------>quirks = tpacpi_check_quirks(volume_quirk_table, <------><------><------><------> ARRAY_SIZE(volume_quirk_table)); <------>switch (volume_capabilities) { <------>case TPACPI_VOL_CAP_AUTO: <------><------>if (quirks & TPACPI_VOL_Q_MUTEONLY) <------><------><------>tp_features.mixer_no_level_control = 1; <------><------>else if (quirks & TPACPI_VOL_Q_LEVEL) <------><------><------>tp_features.mixer_no_level_control = 0; <------><------>else <------><------><------>return 1; /* no mixer */ <------><------>break; <------>case TPACPI_VOL_CAP_VOLMUTE: <------><------>tp_features.mixer_no_level_control = 0; <------><------>break; <------>case TPACPI_VOL_CAP_MUTEONLY: <------><------>tp_features.mixer_no_level_control = 1; <------><------>break; <------>default: <------><------>return 1; <------>} <------>if (volume_capabilities != TPACPI_VOL_CAP_AUTO) <------><------>dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, <------><------><------><------>"using user-supplied volume_capabilities=%d\n", <------><------><------><------>volume_capabilities); <------>if (volume_mode == TPACPI_VOL_MODE_AUTO || <------> volume_mode == TPACPI_VOL_MODE_MAX) { <------><------>volume_mode = TPACPI_VOL_MODE_ECNVRAM; <------><------>dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, <------><------><------><------>"driver auto-selected volume_mode=%d\n", <------><------><------><------>volume_mode); <------>} else { <------><------>dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, <------><------><------><------>"using user-supplied volume_mode=%d\n", <------><------><------><------>volume_mode); <------>} <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, <------><------><------>"mute is supported, volume control is %s\n", <------><------><------>str_supported(!tp_features.mixer_no_level_control)); <------>if (software_mute_requested && volume_set_software_mute(true) == 0) { <------><------>software_mute_active = true; <------>} else { <------><------>rc = volume_create_alsa_mixer(); <------><------>if (rc) { <------><------><------>pr_err("Could not create the ALSA mixer interface\n"); <------><------><------>return rc; <------><------>} <------><------>pr_info("Console audio control enabled, mode: %s\n", <------><------><------>(volume_control_allowed) ? <------><------><------><------>"override (read/write)" : <------><------><------><------>"monitor (read only)"); <------>} <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER, <------><------>"registering volume hotkeys as change notification\n"); <------>tpacpi_hotkey_driver_mask_set(hotkey_driver_mask <------><------><------>| TP_ACPI_HKEY_VOLUP_MASK <------><------><------>| TP_ACPI_HKEY_VOLDWN_MASK <------><------><------>| TP_ACPI_HKEY_MUTE_MASK); <------>return 0; } static int volume_read(struct seq_file *m) { <------>u8 status; <------>if (volume_get_status(&status) < 0) { <------><------>seq_printf(m, "level:\t\tunreadable\n"); <------>} else { <------><------>if (tp_features.mixer_no_level_control) <------><------><------>seq_printf(m, "level:\t\tunsupported\n"); <------><------>else <------><------><------>seq_printf(m, "level:\t\t%d\n", <------><------><------><------><------>status & TP_EC_AUDIO_LVL_MSK); <------><------>seq_printf(m, "mute:\t\t%s\n", <------><------><------><------>onoff(status, TP_EC_AUDIO_MUTESW)); <------><------>if (volume_control_allowed) { <------><------><------>seq_printf(m, "commands:\tunmute, mute\n"); <------><------><------>if (!tp_features.mixer_no_level_control) { <------><------><------><------>seq_printf(m, "commands:\tup, down\n"); <------><------><------><------>seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n", <------><------><------><------><------> TP_EC_VOLUME_MAX); <------><------><------>} <------><------>} <------>} <------>return 0; } static int volume_write(char *buf) { <------>u8 s; <------>u8 new_level, new_mute; <------>int l; <------>char *cmd; <------>int rc; <------>/* <------> * We do allow volume control at driver startup, so that the <------> * user can set initial state through the volume=... parameter hack. <------> */ <------>if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) { <------><------>if (unlikely(!tp_warned.volume_ctrl_forbidden)) { <------><------><------>tp_warned.volume_ctrl_forbidden = 1; <------><------><------>pr_notice("Console audio control in monitor mode, changes are not allowed\n"); <------><------><------>pr_notice("Use the volume_control=1 module parameter to enable volume control\n"); <------><------>} <------><------>return -EPERM; <------>} <------>rc = volume_get_status(&s); <------>if (rc < 0) <------><------>return rc; <------>new_level = s & TP_EC_AUDIO_LVL_MSK; <------>new_mute = s & TP_EC_AUDIO_MUTESW_MSK; <------>while ((cmd = strsep(&buf, ","))) { <------><------>if (!tp_features.mixer_no_level_control) { <------><------><------>if (strlencmp(cmd, "up") == 0) { <------><------><------><------>if (new_mute) <------><------><------><------><------>new_mute = 0; <------><------><------><------>else if (new_level < TP_EC_VOLUME_MAX) <------><------><------><------><------>new_level++; <------><------><------><------>continue; <------><------><------>} else if (strlencmp(cmd, "down") == 0) { <------><------><------><------>if (new_mute) <------><------><------><------><------>new_mute = 0; <------><------><------><------>else if (new_level > 0) <------><------><------><------><------>new_level--; <------><------><------><------>continue; <------><------><------>} else if (sscanf(cmd, "level %u", &l) == 1 && <------><------><------><------> l >= 0 && l <= TP_EC_VOLUME_MAX) { <------><------><------><------><------>new_level = l; <------><------><------><------>continue; <------><------><------>} <------><------>} <------><------>if (strlencmp(cmd, "mute") == 0) <------><------><------>new_mute = TP_EC_AUDIO_MUTESW_MSK; <------><------>else if (strlencmp(cmd, "unmute") == 0) <------><------><------>new_mute = 0; <------><------>else <------><------><------>return -EINVAL; <------>} <------>if (tp_features.mixer_no_level_control) { <------><------>tpacpi_disclose_usertask("procfs volume", "%smute\n", <------><------><------><------><------>new_mute ? "" : "un"); <------><------>rc = volume_set_mute(!!new_mute); <------>} else { <------><------>tpacpi_disclose_usertask("procfs volume", <------><------><------><------><------>"%smute and set level to %d\n", <------><------><------><------><------>new_mute ? "" : "un", new_level); <------><------>rc = volume_set_status(new_mute | new_level); <------>} <------>volume_alsa_notify_change(); <------>return (rc == -EINTR) ? -ERESTARTSYS : rc; } static struct ibm_struct volume_driver_data = { <------>.name = "volume", <------>.read = volume_read, <------>.write = volume_write, <------>.exit = volume_exit, <------>.suspend = volume_suspend, <------>.resume = volume_resume, <------>.shutdown = volume_shutdown, }; #else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ #define alsa_card NULL static inline void volume_alsa_notify_change(void) { } static int __init volume_init(struct ibm_init_struct *iibm) { <------>pr_info("volume: disabled as there is no ALSA support in this kernel\n"); <------>return 1; } static struct ibm_struct volume_driver_data = { <------>.name = "volume", }; #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ /************************************************************************* * Fan subdriver */ /* * FAN ACCESS MODES * * TPACPI_FAN_RD_ACPI_GFAN: * ACPI GFAN method: returns fan level * * see TPACPI_FAN_WR_ACPI_SFAN * EC 0x2f (HFSP) not available if GFAN exists * * TPACPI_FAN_WR_ACPI_SFAN: * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max) * * EC 0x2f (HFSP) might be available *for reading*, but do not use * it for writing. * * TPACPI_FAN_WR_TPEC: * ThinkPad EC register 0x2f (HFSP): fan control loop mode * Supported on almost all ThinkPads * * Fan speed changes of any sort (including those caused by the * disengaged mode) are usually done slowly by the firmware as the * maximum amount of fan duty cycle change per second seems to be * limited. * * Reading is not available if GFAN exists. * Writing is not available if SFAN exists. * * Bits * 7 automatic mode engaged; * (default operation mode of the ThinkPad) * fan level is ignored in this mode. * 6 full speed mode (takes precedence over bit 7); * not available on all thinkpads. May disable * the tachometer while the fan controller ramps up * the speed (which can take up to a few *minutes*). * Speeds up fan to 100% duty-cycle, which is far above * the standard RPM levels. It is not impossible that * it could cause hardware damage. * 5-3 unused in some models. Extra bits for fan level * in others, but still useless as all values above * 7 map to the same speed as level 7 in these models. * 2-0 fan level (0..7 usually) * 0x00 = stop * 0x07 = max (set when temperatures critical) * Some ThinkPads may have other levels, see * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41) * * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at * boot. Apparently the EC does not initialize it, so unless ACPI DSDT * does so, its initial value is meaningless (0x07). * * For firmware bugs, refer to: * https://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues * * ---- * * ThinkPad EC register 0x84 (LSB), 0x85 (MSB): * Main fan tachometer reading (in RPM) * * This register is present on all ThinkPads with a new-style EC, and * it is known not to be present on the A21m/e, and T22, as there is * something else in offset 0x84 according to the ACPI DSDT. Other * ThinkPads from this same time period (and earlier) probably lack the * tachometer as well. * * Unfortunately a lot of ThinkPads with new-style ECs but whose firmware * was never fixed by IBM to report the EC firmware version string * probably support the tachometer (like the early X models), so * detecting it is quite hard. We need more data to know for sure. * * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings * might result. * * FIRMWARE BUG: may go stale while the EC is switching to full speed * mode. * * For firmware bugs, refer to: * https://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues * * ---- * * ThinkPad EC register 0x31 bit 0 (only on select models) * * When bit 0 of EC register 0x31 is zero, the tachometer registers * show the speed of the main fan. When bit 0 of EC register 0x31 * is one, the tachometer registers show the speed of the auxiliary * fan. * * Fan control seems to affect both fans, regardless of the state * of this bit. * * So far, only the firmware for the X60/X61 non-tablet versions * seem to support this (firmware TP-7M). * * TPACPI_FAN_WR_ACPI_FANS: * ThinkPad X31, X40, X41. Not available in the X60. * * FANS ACPI handle: takes three arguments: low speed, medium speed, * high speed. ACPI DSDT seems to map these three speeds to levels * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3") * * The speeds are stored on handles * (FANA:FAN9), (FANC:FANB), (FANE:FAND). * * There are three default speed sets, accessible as handles: * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H * * ACPI DSDT switches which set is in use depending on various * factors. * * TPACPI_FAN_WR_TPEC is also available and should be used to * command the fan. The X31/X40/X41 seems to have 8 fan levels, * but the ACPI tables just mention level 7. */ enum { /* Fan control constants */ <------>fan_status_offset = 0x2f, /* EC register 0x2f */ <------>fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM) <------><------><------><------><------> * 0x84 must be read before 0x85 */ <------>fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M) <------><------><------><------><------> bit 0 selects which fan is active */ <------>TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */ <------>TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */ <------>TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */ }; enum fan_status_access_mode { <------>TPACPI_FAN_NONE = 0, /* No fan status or control */ <------>TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */ <------>TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */ }; enum fan_control_access_mode { <------>TPACPI_FAN_WR_NONE = 0, /* No fan control */ <------>TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */ <------>TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */ <------>TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */ }; enum fan_control_commands { <------>TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */ <------>TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */ <------>TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd, <------><------><------><------><------><------> * and also watchdog cmd */ }; static bool fan_control_allowed; static enum fan_status_access_mode fan_status_access_mode; static enum fan_control_access_mode fan_control_access_mode; static enum fan_control_commands fan_control_commands; static u8 fan_control_initial_status; static u8 fan_control_desired_level; static u8 fan_control_resume_level; static int fan_watchdog_maxinterval; static struct mutex fan_mutex; static void fan_watchdog_fire(struct work_struct *ignored); static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire); TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */ TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */ <------> "\\FSPD", /* 600e/x, 770e, 770x */ <------> ); /* all others */ TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */ <------> "JFNS", /* 770x-JL */ <------> ); /* all others */ /* * Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the * HFSP register at boot, so it contains 0x07 but the Thinkpad could * be in auto mode (0x80). * * This is corrected by any write to HFSP either by the driver, or * by the firmware. * * We assume 0x07 really means auto mode while this quirk is active, * as this is far more likely than the ThinkPad being in level 7, * which is only used by the firmware during thermal emergencies. * * Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52), * TP-70 (T43, R52), which are known to be buggy. */ static void fan_quirk1_setup(void) { <------>if (fan_control_initial_status == 0x07) { <------><------>pr_notice("fan_init: initial fan status is unknown, assuming it is in auto mode\n"); <------><------>tp_features.fan_ctrl_status_undef = 1; <------>} } static void fan_quirk1_handle(u8 *fan_status) { <------>if (unlikely(tp_features.fan_ctrl_status_undef)) { <------><------>if (*fan_status != fan_control_initial_status) { <------><------><------>/* something changed the HFSP regisnter since <------><------><------> * driver init time, so it is not undefined <------><------><------> * anymore */ <------><------><------>tp_features.fan_ctrl_status_undef = 0; <------><------>} else { <------><------><------>/* Return most likely status. In fact, it <------><------><------> * might be the only possible status */ <------><------><------>*fan_status = TP_EC_FAN_AUTO; <------><------>} <------>} } /* Select main fan on X60/X61, NOOP on others */ static bool fan_select_fan1(void) { <------>if (tp_features.second_fan) { <------><------>u8 val; <------><------>if (ec_read(fan_select_offset, &val) < 0) <------><------><------>return false; <------><------>val &= 0xFEU; <------><------>if (ec_write(fan_select_offset, val) < 0) <------><------><------>return false; <------>} <------>return true; } /* Select secondary fan on X60/X61 */ static bool fan_select_fan2(void) { <------>u8 val; <------>if (!tp_features.second_fan) <------><------>return false; <------>if (ec_read(fan_select_offset, &val) < 0) <------><------>return false; <------>val |= 0x01U; <------>if (ec_write(fan_select_offset, val) < 0) <------><------>return false; <------>return true; } /* * Call with fan_mutex held */ static void fan_update_desired_level(u8 status) { <------>if ((status & <------> (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { <------><------>if (status > 7) <------><------><------>fan_control_desired_level = 7; <------><------>else <------><------><------>fan_control_desired_level = status; <------>} } static int fan_get_status(u8 *status) { <------>u8 s; <------>/* TODO: <------> * Add TPACPI_FAN_RD_ACPI_FANS ? */ <------>switch (fan_status_access_mode) { <------>case TPACPI_FAN_RD_ACPI_GFAN: { <------><------>/* 570, 600e/x, 770e, 770x */ <------><------>int res; <------><------>if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d"))) <------><------><------>return -EIO; <------><------>if (likely(status)) <------><------><------>*status = res & 0x07; <------><------>break; <------>} <------>case TPACPI_FAN_RD_TPEC: <------><------>/* all except 570, 600e/x, 770e, 770x */ <------><------>if (unlikely(!acpi_ec_read(fan_status_offset, &s))) <------><------><------>return -EIO; <------><------>if (likely(status)) { <------><------><------>*status = s; <------><------><------>fan_quirk1_handle(status); <------><------>} <------><------>break; <------>default: <------><------>return -ENXIO; <------>} <------>return 0; } static int fan_get_status_safe(u8 *status) { <------>int rc; <------>u8 s; <------>if (mutex_lock_killable(&fan_mutex)) <------><------>return -ERESTARTSYS; <------>rc = fan_get_status(&s); <------>if (!rc) <------><------>fan_update_desired_level(s); <------>mutex_unlock(&fan_mutex); <------>if (rc) <------><------>return rc; <------>if (status) <------><------>*status = s; <------>return 0; } static int fan_get_speed(unsigned int *speed) { <------>u8 hi, lo; <------>switch (fan_status_access_mode) { <------>case TPACPI_FAN_RD_TPEC: <------><------>/* all except 570, 600e/x, 770e, 770x */ <------><------>if (unlikely(!fan_select_fan1())) <------><------><------>return -EIO; <------><------>if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) || <------><------><------> !acpi_ec_read(fan_rpm_offset + 1, &hi))) <------><------><------>return -EIO; <------><------>if (likely(speed)) <------><------><------>*speed = (hi << 8) | lo; <------><------>break; <------>default: <------><------>return -ENXIO; <------>} <------>return 0; } static int fan2_get_speed(unsigned int *speed) { <------>u8 hi, lo; <------>bool rc; <------>switch (fan_status_access_mode) { <------>case TPACPI_FAN_RD_TPEC: <------><------>/* all except 570, 600e/x, 770e, 770x */ <------><------>if (unlikely(!fan_select_fan2())) <------><------><------>return -EIO; <------><------>rc = !acpi_ec_read(fan_rpm_offset, &lo) || <------><------><------> !acpi_ec_read(fan_rpm_offset + 1, &hi); <------><------>fan_select_fan1(); /* play it safe */ <------><------>if (rc) <------><------><------>return -EIO; <------><------>if (likely(speed)) <------><------><------>*speed = (hi << 8) | lo; <------><------>break; <------>default: <------><------>return -ENXIO; <------>} <------>return 0; } static int fan_set_level(int level) { <------>if (!fan_control_allowed) <------><------>return -EPERM; <------>switch (fan_control_access_mode) { <------>case TPACPI_FAN_WR_ACPI_SFAN: <------><------>if ((level < 0) || (level > 7)) <------><------><------>return -EINVAL; <------><------>if (tp_features.second_fan_ctl) { <------><------><------>if (!fan_select_fan2() || <------><------><------> !acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) { <------><------><------><------>pr_warn("Couldn't set 2nd fan level, disabling support\n"); <------><------><------><------>tp_features.second_fan_ctl = 0; <------><------><------>} <------><------><------>fan_select_fan1(); <------><------>} <------><------>if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) <------><------><------>return -EIO; <------><------>break; <------>case TPACPI_FAN_WR_ACPI_FANS: <------>case TPACPI_FAN_WR_TPEC: <------><------>if (!(level & TP_EC_FAN_AUTO) && <------><------> !(level & TP_EC_FAN_FULLSPEED) && <------><------> ((level < 0) || (level > 7))) <------><------><------>return -EINVAL; <------><------>/* safety net should the EC not support AUTO <------><------> * or FULLSPEED mode bits and just ignore them */ <------><------>if (level & TP_EC_FAN_FULLSPEED) <------><------><------>level |= 7; /* safety min speed 7 */ <------><------>else if (level & TP_EC_FAN_AUTO) <------><------><------>level |= 4; /* safety min speed 4 */ <------><------>if (tp_features.second_fan_ctl) { <------><------><------>if (!fan_select_fan2() || <------><------><------> !acpi_ec_write(fan_status_offset, level)) { <------><------><------><------>pr_warn("Couldn't set 2nd fan level, disabling support\n"); <------><------><------><------>tp_features.second_fan_ctl = 0; <------><------><------>} <------><------><------>fan_select_fan1(); <------><------>} <------><------>if (!acpi_ec_write(fan_status_offset, level)) <------><------><------>return -EIO; <------><------>else <------><------><------>tp_features.fan_ctrl_status_undef = 0; <------><------>break; <------>default: <------><------>return -ENXIO; <------>} <------>vdbg_printk(TPACPI_DBG_FAN, <------><------>"fan control: set fan control register to 0x%02x\n", level); <------>return 0; } static int fan_set_level_safe(int level) { <------>int rc; <------>if (!fan_control_allowed) <------><------>return -EPERM; <------>if (mutex_lock_killable(&fan_mutex)) <------><------>return -ERESTARTSYS; <------>if (level == TPACPI_FAN_LAST_LEVEL) <------><------>level = fan_control_desired_level; <------>rc = fan_set_level(level); <------>if (!rc) <------><------>fan_update_desired_level(level); <------>mutex_unlock(&fan_mutex); <------>return rc; } static int fan_set_enable(void) { <------>u8 s; <------>int rc; <------>if (!fan_control_allowed) <------><------>return -EPERM; <------>if (mutex_lock_killable(&fan_mutex)) <------><------>return -ERESTARTSYS; <------>switch (fan_control_access_mode) { <------>case TPACPI_FAN_WR_ACPI_FANS: <------>case TPACPI_FAN_WR_TPEC: <------><------>rc = fan_get_status(&s); <------><------>if (rc < 0) <------><------><------>break; <------><------>/* Don't go out of emergency fan mode */ <------><------>if (s != 7) { <------><------><------>s &= 0x07; <------><------><------>s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */ <------><------>} <------><------>if (!acpi_ec_write(fan_status_offset, s)) <------><------><------>rc = -EIO; <------><------>else { <------><------><------>tp_features.fan_ctrl_status_undef = 0; <------><------><------>rc = 0; <------><------>} <------><------>break; <------>case TPACPI_FAN_WR_ACPI_SFAN: <------><------>rc = fan_get_status(&s); <------><------>if (rc < 0) <------><------><------>break; <------><------>s &= 0x07; <------><------>/* Set fan to at least level 4 */ <------><------>s |= 4; <------><------>if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s)) <------><------><------>rc = -EIO; <------><------>else <------><------><------>rc = 0; <------><------>break; <------>default: <------><------>rc = -ENXIO; <------>} <------>mutex_unlock(&fan_mutex); <------>if (!rc) <------><------>vdbg_printk(TPACPI_DBG_FAN, <------><------><------>"fan control: set fan control register to 0x%02x\n", <------><------><------>s); <------>return rc; } static int fan_set_disable(void) { <------>int rc; <------>if (!fan_control_allowed) <------><------>return -EPERM; <------>if (mutex_lock_killable(&fan_mutex)) <------><------>return -ERESTARTSYS; <------>rc = 0; <------>switch (fan_control_access_mode) { <------>case TPACPI_FAN_WR_ACPI_FANS: <------>case TPACPI_FAN_WR_TPEC: <------><------>if (!acpi_ec_write(fan_status_offset, 0x00)) <------><------><------>rc = -EIO; <------><------>else { <------><------><------>fan_control_desired_level = 0; <------><------><------>tp_features.fan_ctrl_status_undef = 0; <------><------>} <------><------>break; <------>case TPACPI_FAN_WR_ACPI_SFAN: <------><------>if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00)) <------><------><------>rc = -EIO; <------><------>else <------><------><------>fan_control_desired_level = 0; <------><------>break; <------>default: <------><------>rc = -ENXIO; <------>} <------>if (!rc) <------><------>vdbg_printk(TPACPI_DBG_FAN, <------><------><------>"fan control: set fan control register to 0\n"); <------>mutex_unlock(&fan_mutex); <------>return rc; } static int fan_set_speed(int speed) { <------>int rc; <------>if (!fan_control_allowed) <------><------>return -EPERM; <------>if (mutex_lock_killable(&fan_mutex)) <------><------>return -ERESTARTSYS; <------>rc = 0; <------>switch (fan_control_access_mode) { <------>case TPACPI_FAN_WR_ACPI_FANS: <------><------>if (speed >= 0 && speed <= 65535) { <------><------><------>if (!acpi_evalf(fans_handle, NULL, NULL, "vddd", <------><------><------><------><------>speed, speed, speed)) <------><------><------><------>rc = -EIO; <------><------>} else <------><------><------>rc = -EINVAL; <------><------>break; <------>default: <------><------>rc = -ENXIO; <------>} <------>mutex_unlock(&fan_mutex); <------>return rc; } static void fan_watchdog_reset(void) { <------>if (fan_control_access_mode == TPACPI_FAN_WR_NONE) <------><------>return; <------>if (fan_watchdog_maxinterval > 0 && <------> tpacpi_lifecycle != TPACPI_LIFE_EXITING) <------><------>mod_delayed_work(tpacpi_wq, &fan_watchdog_task, <------><------><------>msecs_to_jiffies(fan_watchdog_maxinterval * 1000)); <------>else <------><------>cancel_delayed_work(&fan_watchdog_task); } static void fan_watchdog_fire(struct work_struct *ignored) { <------>int rc; <------>if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING) <------><------>return; <------>pr_notice("fan watchdog: enabling fan\n"); <------>rc = fan_set_enable(); <------>if (rc < 0) { <------><------>pr_err("fan watchdog: error %d while enabling fan, will try again later...\n", <------><------> rc); <------><------>/* reschedule for later */ <------><------>fan_watchdog_reset(); <------>} } /* * SYSFS fan layout: hwmon compatible (device) * * pwm*_enable: * 0: "disengaged" mode * 1: manual mode * 2: native EC "auto" mode (recommended, hardware default) * * pwm*: set speed in manual mode, ignored otherwise. * 0 is level 0; 255 is level 7. Intermediate points done with linear * interpolation. * * fan*_input: tachometer reading, RPM * * * SYSFS fan layout: extensions * * fan_watchdog (driver): * fan watchdog interval in seconds, 0 disables (default), max 120 */ /* sysfs fan pwm1_enable ----------------------------------------------- */ static ssize_t fan_pwm1_enable_show(struct device *dev, <------><------><------><------> struct device_attribute *attr, <------><------><------><------> char *buf) { <------>int res, mode; <------>u8 status; <------>res = fan_get_status_safe(&status); <------>if (res) <------><------>return res; <------>if (status & TP_EC_FAN_FULLSPEED) { <------><------>mode = 0; <------>} else if (status & TP_EC_FAN_AUTO) { <------><------>mode = 2; <------>} else <------><------>mode = 1; <------>return snprintf(buf, PAGE_SIZE, "%d\n", mode); } static ssize_t fan_pwm1_enable_store(struct device *dev, <------><------><------><------> struct device_attribute *attr, <------><------><------><------> const char *buf, size_t count) { <------>unsigned long t; <------>int res, level; <------>if (parse_strtoul(buf, 2, &t)) <------><------>return -EINVAL; <------>tpacpi_disclose_usertask("hwmon pwm1_enable", <------><------><------>"set fan mode to %lu\n", t); <------>switch (t) { <------>case 0: <------><------>level = TP_EC_FAN_FULLSPEED; <------><------>break; <------>case 1: <------><------>level = TPACPI_FAN_LAST_LEVEL; <------><------>break; <------>case 2: <------><------>level = TP_EC_FAN_AUTO; <------><------>break; <------>case 3: <------><------>/* reserved for software-controlled auto mode */ <------><------>return -ENOSYS; <------>default: <------><------>return -EINVAL; <------>} <------>res = fan_set_level_safe(level); <------>if (res == -ENXIO) <------><------>return -EINVAL; <------>else if (res < 0) <------><------>return res; <------>fan_watchdog_reset(); <------>return count; } static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, <------><------> fan_pwm1_enable_show, fan_pwm1_enable_store); /* sysfs fan pwm1 ------------------------------------------------------ */ static ssize_t fan_pwm1_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>int res; <------>u8 status; <------>res = fan_get_status_safe(&status); <------>if (res) <------><------>return res; <------>if ((status & <------> (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0) <------><------>status = fan_control_desired_level; <------>if (status > 7) <------><------>status = 7; <------>return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7); } static ssize_t fan_pwm1_store(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> const char *buf, size_t count) { <------>unsigned long s; <------>int rc; <------>u8 status, newlevel; <------>if (parse_strtoul(buf, 255, &s)) <------><------>return -EINVAL; <------>tpacpi_disclose_usertask("hwmon pwm1", <------><------><------>"set fan speed to %lu\n", s); <------>/* scale down from 0-255 to 0-7 */ <------>newlevel = (s >> 5) & 0x07; <------>if (mutex_lock_killable(&fan_mutex)) <------><------>return -ERESTARTSYS; <------>rc = fan_get_status(&status); <------>if (!rc && (status & <------><------> (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) { <------><------>rc = fan_set_level(newlevel); <------><------>if (rc == -ENXIO) <------><------><------>rc = -EINVAL; <------><------>else if (!rc) { <------><------><------>fan_update_desired_level(newlevel); <------><------><------>fan_watchdog_reset(); <------><------>} <------>} <------>mutex_unlock(&fan_mutex); <------>return (rc) ? rc : count; } static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, fan_pwm1_show, fan_pwm1_store); /* sysfs fan fan1_input ------------------------------------------------ */ static ssize_t fan_fan1_input_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>int res; <------>unsigned int speed; <------>res = fan_get_speed(&speed); <------>if (res < 0) <------><------>return res; <------>return snprintf(buf, PAGE_SIZE, "%u\n", speed); } static DEVICE_ATTR(fan1_input, S_IRUGO, fan_fan1_input_show, NULL); /* sysfs fan fan2_input ------------------------------------------------ */ static ssize_t fan_fan2_input_show(struct device *dev, <------><------><------> struct device_attribute *attr, <------><------><------> char *buf) { <------>int res; <------>unsigned int speed; <------>res = fan2_get_speed(&speed); <------>if (res < 0) <------><------>return res; <------>return snprintf(buf, PAGE_SIZE, "%u\n", speed); } static DEVICE_ATTR(fan2_input, S_IRUGO, fan_fan2_input_show, NULL); /* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */ static ssize_t fan_watchdog_show(struct device_driver *drv, char *buf) { <------>return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval); } static ssize_t fan_watchdog_store(struct device_driver *drv, const char *buf, <------><------><------><------> size_t count) { <------>unsigned long t; <------>if (parse_strtoul(buf, 120, &t)) <------><------>return -EINVAL; <------>if (!fan_control_allowed) <------><------>return -EPERM; <------>fan_watchdog_maxinterval = t; <------>fan_watchdog_reset(); <------>tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t); <------>return count; } static DRIVER_ATTR_RW(fan_watchdog); /* --------------------------------------------------------------------- */ static struct attribute *fan_attributes[] = { <------>&dev_attr_pwm1_enable.attr, &dev_attr_pwm1.attr, <------>&dev_attr_fan1_input.attr, <------>NULL, /* for fan2_input */ <------>NULL }; static const struct attribute_group fan_attr_group = { <------>.attrs = fan_attributes, }; #define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */ #define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */ #define TPACPI_FAN_2CTL 0x0004 /* selects fan2 control */ static const struct tpacpi_quirk fan_quirk_table[] __initconst = { <------>TPACPI_QEC_IBM('1', 'Y', TPACPI_FAN_Q1), <------>TPACPI_QEC_IBM('7', '8', TPACPI_FAN_Q1), <------>TPACPI_QEC_IBM('7', '6', TPACPI_FAN_Q1), <------>TPACPI_QEC_IBM('7', '0', TPACPI_FAN_Q1), <------>TPACPI_QEC_LNV('7', 'M', TPACPI_FAN_2FAN), <------>TPACPI_Q_LNV('N', '1', TPACPI_FAN_2FAN), <------>TPACPI_Q_LNV3('N', '1', 'D', TPACPI_FAN_2CTL), /* P70 */ <------>TPACPI_Q_LNV3('N', '1', 'E', TPACPI_FAN_2CTL), /* P50 */ <------>TPACPI_Q_LNV3('N', '1', 'T', TPACPI_FAN_2CTL), /* P71 */ <------>TPACPI_Q_LNV3('N', '1', 'U', TPACPI_FAN_2CTL), /* P51 */ <------>TPACPI_Q_LNV3('N', '2', 'C', TPACPI_FAN_2CTL), /* P52 / P72 */ <------>TPACPI_Q_LNV3('N', '2', 'N', TPACPI_FAN_2CTL), /* P53 / P73 */ <------>TPACPI_Q_LNV3('N', '2', 'E', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (1st gen) */ <------>TPACPI_Q_LNV3('N', '2', 'O', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (2nd gen) */ <------>TPACPI_Q_LNV3('N', '2', 'V', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (3nd gen) */ <------>TPACPI_Q_LNV3('N', '4', '0', TPACPI_FAN_2CTL), /* P1 / X1 Extreme (4nd gen) */ <------>TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL), /* P15 (1st gen) / P15v (1st gen) */ <------>TPACPI_Q_LNV3('N', '3', '2', TPACPI_FAN_2CTL), /* X1 Carbon (9th gen) */ }; static int __init fan_init(struct ibm_init_struct *iibm) { <------>int rc; <------>unsigned long quirks; <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, <------><------><------>"initializing fan subdriver\n"); <------>mutex_init(&fan_mutex); <------>fan_status_access_mode = TPACPI_FAN_NONE; <------>fan_control_access_mode = TPACPI_FAN_WR_NONE; <------>fan_control_commands = 0; <------>fan_watchdog_maxinterval = 0; <------>tp_features.fan_ctrl_status_undef = 0; <------>tp_features.second_fan = 0; <------>tp_features.second_fan_ctl = 0; <------>fan_control_desired_level = 7; <------>if (tpacpi_is_ibm()) { <------><------>TPACPI_ACPIHANDLE_INIT(fans); <------><------>TPACPI_ACPIHANDLE_INIT(gfan); <------><------>TPACPI_ACPIHANDLE_INIT(sfan); <------>} <------>quirks = tpacpi_check_quirks(fan_quirk_table, <------><------><------><------> ARRAY_SIZE(fan_quirk_table)); <------>if (gfan_handle) { <------><------>/* 570, 600e/x, 770e, 770x */ <------><------>fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN; <------>} else { <------><------>/* all other ThinkPads: note that even old-style <------><------> * ThinkPad ECs supports the fan control register */ <------><------>if (likely(acpi_ec_read(fan_status_offset, <------><------><------><------><------>&fan_control_initial_status))) { <------><------><------>fan_status_access_mode = TPACPI_FAN_RD_TPEC; <------><------><------>if (quirks & TPACPI_FAN_Q1) <------><------><------><------>fan_quirk1_setup(); <------><------><------>if (quirks & TPACPI_FAN_2FAN) { <------><------><------><------>tp_features.second_fan = 1; <------><------><------><------>pr_info("secondary fan support enabled\n"); <------><------><------>} <------><------><------>if (quirks & TPACPI_FAN_2CTL) { <------><------><------><------>tp_features.second_fan = 1; <------><------><------><------>tp_features.second_fan_ctl = 1; <------><------><------><------>pr_info("secondary fan control enabled\n"); <------><------><------>} <------><------>} else { <------><------><------>pr_err("ThinkPad ACPI EC access misbehaving, fan status and control unavailable\n"); <------><------><------>return 1; <------><------>} <------>} <------>if (sfan_handle) { <------><------>/* 570, 770x-JL */ <------><------>fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN; <------><------>fan_control_commands |= <------><------> TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE; <------>} else { <------><------>if (!gfan_handle) { <------><------><------>/* gfan without sfan means no fan control */ <------><------><------>/* all other models implement TP EC 0x2f control */ <------><------><------>if (fans_handle) { <------><------><------><------>/* X31, X40, X41 */ <------><------><------><------>fan_control_access_mode = <------><------><------><------> TPACPI_FAN_WR_ACPI_FANS; <------><------><------><------>fan_control_commands |= <------><------><------><------> TPACPI_FAN_CMD_SPEED | <------><------><------><------> TPACPI_FAN_CMD_LEVEL | <------><------><------><------> TPACPI_FAN_CMD_ENABLE; <------><------><------>} else { <------><------><------><------>fan_control_access_mode = TPACPI_FAN_WR_TPEC; <------><------><------><------>fan_control_commands |= <------><------><------><------> TPACPI_FAN_CMD_LEVEL | <------><------><------><------> TPACPI_FAN_CMD_ENABLE; <------><------><------>} <------><------>} <------>} <------>vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, <------><------>"fan is %s, modes %d, %d\n", <------><------>str_supported(fan_status_access_mode != TPACPI_FAN_NONE || <------><------> fan_control_access_mode != TPACPI_FAN_WR_NONE), <------><------>fan_status_access_mode, fan_control_access_mode); <------>/* fan control master switch */ <------>if (!fan_control_allowed) { <------><------>fan_control_access_mode = TPACPI_FAN_WR_NONE; <------><------>fan_control_commands = 0; <------><------>dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN, <------><------><------> "fan control features disabled by parameter\n"); <------>} <------>/* update fan_control_desired_level */ <------>if (fan_status_access_mode != TPACPI_FAN_NONE) <------><------>fan_get_status_safe(NULL); <------>if (fan_status_access_mode != TPACPI_FAN_NONE || <------> fan_control_access_mode != TPACPI_FAN_WR_NONE) { <------><------>if (tp_features.second_fan) { <------><------><------>/* attach second fan tachometer */ <------><------><------>fan_attributes[ARRAY_SIZE(fan_attributes)-2] = <------><------><------><------><------>&dev_attr_fan2_input.attr; <------><------>} <------><------>rc = sysfs_create_group(&tpacpi_hwmon->kobj, <------><------><------><------><------> &fan_attr_group); <------><------>if (rc < 0) <------><------><------>return rc; <------><------>rc = driver_create_file(&tpacpi_hwmon_pdriver.driver, <------><------><------><------><------>&driver_attr_fan_watchdog); <------><------>if (rc < 0) { <------><------><------>sysfs_remove_group(&tpacpi_hwmon->kobj, <------><------><------><------><------>&fan_attr_group); <------><------><------>return rc; <------><------>} <------><------>return 0; <------>} else <------><------>return 1; } static void fan_exit(void) { <------>vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN, <------><------> "cancelling any pending fan watchdog tasks\n"); <------>/* FIXME: can we really do this unconditionally? */ <------>sysfs_remove_group(&tpacpi_hwmon->kobj, &fan_attr_group); <------>driver_remove_file(&tpacpi_hwmon_pdriver.driver, <------><------><------> &driver_attr_fan_watchdog); <------>cancel_delayed_work(&fan_watchdog_task); <------>flush_workqueue(tpacpi_wq); } static void fan_suspend(void) { <------>int rc; <------>if (!fan_control_allowed) <------><------>return; <------>/* Store fan status in cache */ <------>fan_control_resume_level = 0; <------>rc = fan_get_status_safe(&fan_control_resume_level); <------>if (rc < 0) <------><------>pr_notice("failed to read fan level for later restore during resume: %d\n", <------><------><------> rc); <------>/* if it is undefined, don't attempt to restore it. <------> * KEEP THIS LAST */ <------>if (tp_features.fan_ctrl_status_undef) <------><------>fan_control_resume_level = 0; } static void fan_resume(void) { <------>u8 current_level = 7; <------>bool do_set = false; <------>int rc; <------>/* DSDT *always* updates status on resume */ <------>tp_features.fan_ctrl_status_undef = 0; <------>if (!fan_control_allowed || <------> !fan_control_resume_level || <------> (fan_get_status_safe(¤t_level) < 0)) <------><------>return; <------>switch (fan_control_access_mode) { <------>case TPACPI_FAN_WR_ACPI_SFAN: <------><------>/* never decrease fan level */ <------><------>do_set = (fan_control_resume_level > current_level); <------><------>break; <------>case TPACPI_FAN_WR_ACPI_FANS: <------>case TPACPI_FAN_WR_TPEC: <------><------>/* never decrease fan level, scale is: <------><------> * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO <------><------> * <------><------> * We expect the firmware to set either 7 or AUTO, but we <------><------> * handle FULLSPEED out of paranoia. <------><------> * <------><------> * So, we can safely only restore FULLSPEED or 7, anything <------><------> * else could slow the fan. Restoring AUTO is useless, at <------><------> * best that's exactly what the DSDT already set (it is the <------><------> * slower it uses). <------><------> * <------><------> * Always keep in mind that the DSDT *will* have set the <------><------> * fans to what the vendor supposes is the best level. We <------><------> * muck with it only to speed the fan up. <------><------> */ <------><------>if (fan_control_resume_level != 7 && <------><------> !(fan_control_resume_level & TP_EC_FAN_FULLSPEED)) <------><------><------>return; <------><------>else <------><------><------>do_set = !(current_level & TP_EC_FAN_FULLSPEED) && <------><------><------><------> (current_level != fan_control_resume_level); <------><------>break; <------>default: <------><------>return; <------>} <------>if (do_set) { <------><------>pr_notice("restoring fan level to 0x%02x\n", <------><------><------> fan_control_resume_level); <------><------>rc = fan_set_level_safe(fan_control_resume_level); <------><------>if (rc < 0) <------><------><------>pr_notice("failed to restore fan level: %d\n", rc); <------>} } static int fan_read(struct seq_file *m) { <------>int rc; <------>u8 status; <------>unsigned int speed = 0; <------>switch (fan_status_access_mode) { <------>case TPACPI_FAN_RD_ACPI_GFAN: <------><------>/* 570, 600e/x, 770e, 770x */ <------><------>rc = fan_get_status_safe(&status); <------><------>if (rc < 0) <------><------><------>return rc; <------><------>seq_printf(m, "status:\t\t%s\n" <------><------><------> "level:\t\t%d\n", <------><------><------> (status != 0) ? "enabled" : "disabled", status); <------><------>break; <------>case TPACPI_FAN_RD_TPEC: <------><------>/* all except 570, 600e/x, 770e, 770x */ <------><------>rc = fan_get_status_safe(&status); <------><------>if (rc < 0) <------><------><------>return rc; <------><------>seq_printf(m, "status:\t\t%s\n", <------><------><------> (status != 0) ? "enabled" : "disabled"); <------><------>rc = fan_get_speed(&speed); <------><------>if (rc < 0) <------><------><------>return rc; <------><------>seq_printf(m, "speed:\t\t%d\n", speed); <------><------>if (status & TP_EC_FAN_FULLSPEED) <------><------><------>/* Disengaged mode takes precedence */ <------><------><------>seq_printf(m, "level:\t\tdisengaged\n"); <------><------>else if (status & TP_EC_FAN_AUTO) <------><------><------>seq_printf(m, "level:\t\tauto\n"); <------><------>else <------><------><------>seq_printf(m, "level:\t\t%d\n", status); <------><------>break; <------>case TPACPI_FAN_NONE: <------>default: <------><------>seq_printf(m, "status:\t\tnot supported\n"); <------>} <------>if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) { <------><------>seq_printf(m, "commands:\tlevel <level>"); <------><------>switch (fan_control_access_mode) { <------><------>case TPACPI_FAN_WR_ACPI_SFAN: <------><------><------>seq_printf(m, " (<level> is 0-7)\n"); <------><------><------>break; <------><------>default: <------><------><------>seq_printf(m, " (<level> is 0-7, auto, disengaged, full-speed)\n"); <------><------><------>break; <------><------>} <------>} <------>if (fan_control_commands & TPACPI_FAN_CMD_ENABLE) <------><------>seq_printf(m, "commands:\tenable, disable\n" <------><------><------> "commands:\twatchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))\n"); <------>if (fan_control_commands & TPACPI_FAN_CMD_SPEED) <------><------>seq_printf(m, "commands:\tspeed <speed> (<speed> is 0-65535)\n"); <------>return 0; } static int fan_write_cmd_level(const char *cmd, int *rc) { <------>int level; <------>if (strlencmp(cmd, "level auto") == 0) <------><------>level = TP_EC_FAN_AUTO; <------>else if ((strlencmp(cmd, "level disengaged") == 0) || <------><------><------>(strlencmp(cmd, "level full-speed") == 0)) <------><------>level = TP_EC_FAN_FULLSPEED; <------>else if (sscanf(cmd, "level %d", &level) != 1) <------><------>return 0; <------>*rc = fan_set_level_safe(level); <------>if (*rc == -ENXIO) <------><------>pr_err("level command accepted for unsupported access mode %d\n", <------><------> fan_control_access_mode); <------>else if (!*rc) <------><------>tpacpi_disclose_usertask("procfs fan", <------><------><------>"set level to %d\n", level); <------>return 1; } static int fan_write_cmd_enable(const char *cmd, int *rc) { <------>if (strlencmp(cmd, "enable") != 0) <------><------>return 0; <------>*rc = fan_set_enable(); <------>if (*rc == -ENXIO) <------><------>pr_err("enable command accepted for unsupported access mode %d\n", <------><------> fan_control_access_mode); <------>else if (!*rc) <------><------>tpacpi_disclose_usertask("procfs fan", "enable\n"); <------>return 1; } static int fan_write_cmd_disable(const char *cmd, int *rc) { <------>if (strlencmp(cmd, "disable") != 0) <------><------>return 0; <------>*rc = fan_set_disable(); <------>if (*rc == -ENXIO) <------><------>pr_err("disable command accepted for unsupported access mode %d\n", <------><------> fan_control_access_mode); <------>else if (!*rc) <------><------>tpacpi_disclose_usertask("procfs fan", "disable\n"); <------>return 1; } static int fan_write_cmd_speed(const char *cmd, int *rc) { <------>int speed; <------>/* TODO: <------> * Support speed <low> <medium> <high> ? */ <------>if (sscanf(cmd, "speed %d", &speed) != 1) <------><------>return 0; <------>*rc = fan_set_speed(speed); <------>if (*rc == -ENXIO) <------><------>pr_err("speed command accepted for unsupported access mode %d\n", <------><------> fan_control_access_mode); <------>else if (!*rc) <------><------>tpacpi_disclose_usertask("procfs fan", <------><------><------>"set speed to %d\n", speed); <------>return 1; } static int fan_write_cmd_watchdog(const char *cmd, int *rc) { <------>int interval; <------>if (sscanf(cmd, "watchdog %d", &interval) != 1) <------><------>return 0; <------>if (interval < 0 || interval > 120) <------><------>*rc = -EINVAL; <------>else { <------><------>fan_watchdog_maxinterval = interval; <------><------>tpacpi_disclose_usertask("procfs fan", <------><------><------>"set watchdog timer to %d\n", <------><------><------>interval); <------>} <------>return 1; } static int fan_write(char *buf) { <------>char *cmd; <------>int rc = 0; <------>while (!rc && (cmd = strsep(&buf, ","))) { <------><------>if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) && <------><------> fan_write_cmd_level(cmd, &rc)) && <------><------> !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) && <------><------> (fan_write_cmd_enable(cmd, &rc) || <------><------> fan_write_cmd_disable(cmd, &rc) || <------><------> fan_write_cmd_watchdog(cmd, &rc))) && <------><------> !((fan_control_commands & TPACPI_FAN_CMD_SPEED) && <------><------> fan_write_cmd_speed(cmd, &rc)) <------><------> ) <------><------><------>rc = -EINVAL; <------><------>else if (!rc) <------><------><------>fan_watchdog_reset(); <------>} <------>return rc; } static struct ibm_struct fan_driver_data = { <------>.name = "fan", <------>.read = fan_read, <------>.write = fan_write, <------>.exit = fan_exit, <------>.suspend = fan_suspend, <------>.resume = fan_resume, }; /************************************************************************* * Mute LED subdriver */ #define TPACPI_LED_MAX 2 struct tp_led_table { <------>acpi_string name; <------>int on_value; <------>int off_value; <------>int state; }; static struct tp_led_table led_tables[TPACPI_LED_MAX] = { <------>[LED_AUDIO_MUTE] = { <------><------>.name = "SSMS", <------><------>.on_value = 1, <------><------>.off_value = 0, <------>}, <------>[LED_AUDIO_MICMUTE] = { <------><------>.name = "MMTS", <------><------>.on_value = 2, <------><------>.off_value = 0, <------>}, }; static int mute_led_on_off(struct tp_led_table *t, bool state) { <------>acpi_handle temp; <------>int output; <------>if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) { <------><------>pr_warn("Thinkpad ACPI has no %s interface.\n", t->name); <------><------>return -EIO; <------>} <------>if (!acpi_evalf(hkey_handle, &output, t->name, "dd", <------><------><------>state ? t->on_value : t->off_value)) <------><------>return -EIO; <------>t->state = state; <------>return state; } static int tpacpi_led_set(int whichled, bool on) { <------>struct tp_led_table *t; <------>t = &led_tables[whichled]; <------>if (t->state < 0 || t->state == on) <------><------>return t->state; <------>return mute_led_on_off(t, on); } static int tpacpi_led_mute_set(struct led_classdev *led_cdev, <------><------><------> enum led_brightness brightness) { <------>return tpacpi_led_set(LED_AUDIO_MUTE, brightness != LED_OFF); } static int tpacpi_led_micmute_set(struct led_classdev *led_cdev, <------><------><------><------> enum led_brightness brightness) { <------>return tpacpi_led_set(LED_AUDIO_MICMUTE, brightness != LED_OFF); } static struct led_classdev mute_led_cdev[TPACPI_LED_MAX] = { <------>[LED_AUDIO_MUTE] = { <------><------>.name = "platform::mute", <------><------>.max_brightness = 1, <------><------>.brightness_set_blocking = tpacpi_led_mute_set, <------><------>.default_trigger = "audio-mute", <------>}, <------>[LED_AUDIO_MICMUTE] = { <------><------>.name = "platform::micmute", <------><------>.max_brightness = 1, <------><------>.brightness_set_blocking = tpacpi_led_micmute_set, <------><------>.default_trigger = "audio-micmute", <------>}, }; static int mute_led_init(struct ibm_init_struct *iibm) { <------>acpi_handle temp; <------>int i, err; <------>for (i = 0; i < TPACPI_LED_MAX; i++) { <------><------>struct tp_led_table *t = &led_tables[i]; <------><------>if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) { <------><------><------>t->state = -ENODEV; <------><------><------>continue; <------><------>} <------><------>mute_led_cdev[i].brightness = ledtrig_audio_get(i); <------><------>err = led_classdev_register(&tpacpi_pdev->dev, &mute_led_cdev[i]); <------><------>if (err < 0) { <------><------><------>while (i--) <------><------><------><------>led_classdev_unregister(&mute_led_cdev[i]); <------><------><------>return err; <------><------>} <------>} <------>return 0; } static void mute_led_exit(void) { <------>int i; <------>for (i = 0; i < TPACPI_LED_MAX; i++) { <------><------>led_classdev_unregister(&mute_led_cdev[i]); <------><------>tpacpi_led_set(i, false); <------>} } static void mute_led_resume(void) { <------>int i; <------>for (i = 0; i < TPACPI_LED_MAX; i++) { <------><------>struct tp_led_table *t = &led_tables[i]; <------><------>if (t->state >= 0) <------><------><------>mute_led_on_off(t, t->state); <------>} } static struct ibm_struct mute_led_driver_data = { <------>.name = "mute_led", <------>.exit = mute_led_exit, <------>.resume = mute_led_resume, }; /* * Battery Wear Control Driver * Contact: Ognjen Galic <smclt30p@gmail.com> */ /* Metadata */ #define GET_START "BCTG" #define SET_START "BCCS" #define GET_STOP "BCSG" #define SET_STOP "BCSS" enum { <------>BAT_ANY = 0, <------>BAT_PRIMARY = 1, <------>BAT_SECONDARY = 2 }; enum { <------>/* Error condition bit */ <------>METHOD_ERR = BIT(31), }; enum { <------>/* This is used in the get/set helpers */ <------>THRESHOLD_START, <------>THRESHOLD_STOP, }; struct tpacpi_battery_data { <------>int charge_start; <------>int start_support; <------>int charge_stop; <------>int stop_support; }; struct tpacpi_battery_driver_data { <------>struct tpacpi_battery_data batteries[3]; <------>int individual_addressing; }; static struct tpacpi_battery_driver_data battery_info; /* ACPI helpers/functions/probes */ /** * This evaluates a ACPI method call specific to the battery * ACPI extension. The specifics are that an error is marked * in the 32rd bit of the response, so we just check that here. */ static acpi_status tpacpi_battery_acpi_eval(char *method, int *ret, int param) { <------>int response; <------>if (!acpi_evalf(hkey_handle, &response, method, "dd", param)) { <------><------>acpi_handle_err(hkey_handle, "%s: evaluate failed", method); <------><------>return AE_ERROR; <------>} <------>if (response & METHOD_ERR) { <------><------>acpi_handle_err(hkey_handle, <------><------><------><------>"%s evaluated but flagged as error", method); <------><------>return AE_ERROR; <------>} <------>*ret = response; <------>return AE_OK; } static int tpacpi_battery_get(int what, int battery, int *ret) { <------>switch (what) { <------>case THRESHOLD_START: <------><------>if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, ret, battery)) <------><------><------>return -ENODEV; <------><------>/* The value is in the low 8 bits of the response */ <------><------>*ret = *ret & 0xFF; <------><------>return 0; <------>case THRESHOLD_STOP: <------><------>if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, ret, battery)) <------><------><------>return -ENODEV; <------><------>/* Value is in lower 8 bits */ <------><------>*ret = *ret & 0xFF; <------><------>/* <------><------> * On the stop value, if we return 0 that <------><------> * does not make any sense. 0 means Default, which <------><------> * means that charging stops at 100%, so we return <------><------> * that. <------><------> */ <------><------>if (*ret == 0) <------><------><------>*ret = 100; <------><------>return 0; <------>default: <------><------>pr_crit("wrong parameter: %d", what); <------><------>return -EINVAL; <------>} } static int tpacpi_battery_set(int what, int battery, int value) { <------>int param, ret; <------>/* The first 8 bits are the value of the threshold */ <------>param = value; <------>/* The battery ID is in bits 8-9, 2 bits */ <------>param |= battery << 8; <------>switch (what) { <------>case THRESHOLD_START: <------><------>if ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_START, &ret, param)) { <------><------><------>pr_err("failed to set charge threshold on battery %d", <------><------><------><------><------>battery); <------><------><------>return -ENODEV; <------><------>} <------><------>return 0; <------>case THRESHOLD_STOP: <------><------>if ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_STOP, &ret, param)) { <------><------><------>pr_err("failed to set stop threshold: %d", battery); <------><------><------>return -ENODEV; <------><------>} <------><------>return 0; <------>default: <------><------>pr_crit("wrong parameter: %d", what); <------><------>return -EINVAL; <------>} } static int tpacpi_battery_probe(int battery) { <------>int ret = 0; <------>memset(&battery_info.batteries[battery], 0, <------><------>sizeof(battery_info.batteries[battery])); <------>/* <------> * 1) Get the current start threshold <------> * 2) Check for support <------> * 3) Get the current stop threshold <------> * 4) Check for support <------> */ <------>if (acpi_has_method(hkey_handle, GET_START)) { <------><------>if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, &ret, battery)) { <------><------><------>pr_err("Error probing battery %d\n", battery); <------><------><------>return -ENODEV; <------><------>} <------><------>/* Individual addressing is in bit 9 */ <------><------>if (ret & BIT(9)) <------><------><------>battery_info.individual_addressing = true; <------><------>/* Support is marked in bit 8 */ <------><------>if (ret & BIT(8)) <------><------><------>battery_info.batteries[battery].start_support = 1; <------><------>else <------><------><------>return -ENODEV; <------><------>if (tpacpi_battery_get(THRESHOLD_START, battery, <------><------><------>&battery_info.batteries[battery].charge_start)) { <------><------><------>pr_err("Error probing battery %d\n", battery); <------><------><------>return -ENODEV; <------><------>} <------>} <------>if (acpi_has_method(hkey_handle, GET_STOP)) { <------><------>if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, &ret, battery)) { <------><------><------>pr_err("Error probing battery stop; %d\n", battery); <------><------><------>return -ENODEV; <------><------>} <------><------>/* Support is marked in bit 8 */ <------><------>if (ret & BIT(8)) <------><------><------>battery_info.batteries[battery].stop_support = 1; <------><------>else <------><------><------>return -ENODEV; <------><------>if (tpacpi_battery_get(THRESHOLD_STOP, battery, <------><------><------>&battery_info.batteries[battery].charge_stop)) { <------><------><------>pr_err("Error probing battery stop: %d\n", battery); <------><------><------>return -ENODEV; <------><------>} <------>} <------>pr_info("battery %d registered (start %d, stop %d)", <------><------><------>battery, <------><------><------>battery_info.batteries[battery].charge_start, <------><------><------>battery_info.batteries[battery].charge_stop); <------>return 0; } /* General helper functions */ static int tpacpi_battery_get_id(const char *battery_name) { <------>if (strcmp(battery_name, "BAT0") == 0 || <------> tp_features.battery_force_primary) <------><------>return BAT_PRIMARY; <------>if (strcmp(battery_name, "BAT1") == 0) <------><------>return BAT_SECONDARY; <------>/* <------> * If for some reason the battery is not BAT0 nor is it <------> * BAT1, we will assume it's the default, first battery, <------> * AKA primary. <------> */ <------>pr_warn("unknown battery %s, assuming primary", battery_name); <------>return BAT_PRIMARY; } /* sysfs interface */ static ssize_t tpacpi_battery_store(int what, <------><------><------><------> struct device *dev, <------><------><------><------> const char *buf, size_t count) { <------>struct power_supply *supply = to_power_supply(dev); <------>unsigned long value; <------>int battery, rval; <------>/* <------> * Some systems have support for more than <------> * one battery. If that is the case, <------> * tpacpi_battery_probe marked that addressing <------> * them individually is supported, so we do that <------> * based on the device struct. <------> * <------> * On systems that are not supported, we assume <------> * the primary as most of the ACPI calls fail <------> * with "Any Battery" as the parameter. <------> */ <------>if (battery_info.individual_addressing) <------><------>/* BAT_PRIMARY or BAT_SECONDARY */ <------><------>battery = tpacpi_battery_get_id(supply->desc->name); <------>else <------><------>battery = BAT_PRIMARY; <------>rval = kstrtoul(buf, 10, &value); <------>if (rval) <------><------>return rval; <------>switch (what) { <------>case THRESHOLD_START: <------><------>if (!battery_info.batteries[battery].start_support) <------><------><------>return -ENODEV; <------><------>/* valid values are [0, 99] */ <------><------>if (value > 99) <------><------><------>return -EINVAL; <------><------>if (value > battery_info.batteries[battery].charge_stop) <------><------><------>return -EINVAL; <------><------>if (tpacpi_battery_set(THRESHOLD_START, battery, value)) <------><------><------>return -ENODEV; <------><------>battery_info.batteries[battery].charge_start = value; <------><------>return count; <------>case THRESHOLD_STOP: <------><------>if (!battery_info.batteries[battery].stop_support) <------><------><------>return -ENODEV; <------><------>/* valid values are [1, 100] */ <------><------>if (value < 1 || value > 100) <------><------><------>return -EINVAL; <------><------>if (value < battery_info.batteries[battery].charge_start) <------><------><------>return -EINVAL; <------><------>battery_info.batteries[battery].charge_stop = value; <------><------>/* <------><------> * When 100 is passed to stop, we need to flip <------><------> * it to 0 as that the EC understands that as <------><------> * "Default", which will charge to 100% <------><------> */ <------><------>if (value == 100) <------><------><------>value = 0; <------><------>if (tpacpi_battery_set(THRESHOLD_STOP, battery, value)) <------><------><------>return -EINVAL; <------><------>return count; <------>default: <------><------>pr_crit("Wrong parameter: %d", what); <------><------>return -EINVAL; <------>} <------>return count; } static ssize_t tpacpi_battery_show(int what, <------><------><------><------> struct device *dev, <------><------><------><------> char *buf) { <------>struct power_supply *supply = to_power_supply(dev); <------>int ret, battery; <------>/* <------> * Some systems have support for more than <------> * one battery. If that is the case, <------> * tpacpi_battery_probe marked that addressing <------> * them individually is supported, so we; <------> * based on the device struct. <------> * <------> * On systems that are not supported, we assume <------> * the primary as most of the ACPI calls fail <------> * with "Any Battery" as the parameter. <------> */ <------>if (battery_info.individual_addressing) <------><------>/* BAT_PRIMARY or BAT_SECONDARY */ <------><------>battery = tpacpi_battery_get_id(supply->desc->name); <------>else <------><------>battery = BAT_PRIMARY; <------>if (tpacpi_battery_get(what, battery, &ret)) <------><------>return -ENODEV; <------>return sprintf(buf, "%d\n", ret); } static ssize_t charge_control_start_threshold_show(struct device *device, <------><------><------><------>struct device_attribute *attr, <------><------><------><------>char *buf) { <------>return tpacpi_battery_show(THRESHOLD_START, device, buf); } static ssize_t charge_control_end_threshold_show(struct device *device, <------><------><------><------>struct device_attribute *attr, <------><------><------><------>char *buf) { <------>return tpacpi_battery_show(THRESHOLD_STOP, device, buf); } static ssize_t charge_control_start_threshold_store(struct device *dev, <------><------><------><------>struct device_attribute *attr, <------><------><------><------>const char *buf, size_t count) { <------>return tpacpi_battery_store(THRESHOLD_START, dev, buf, count); } static ssize_t charge_control_end_threshold_store(struct device *dev, <------><------><------><------>struct device_attribute *attr, <------><------><------><------>const char *buf, size_t count) { <------>return tpacpi_battery_store(THRESHOLD_STOP, dev, buf, count); } static DEVICE_ATTR_RW(charge_control_start_threshold); static DEVICE_ATTR_RW(charge_control_end_threshold); static struct device_attribute dev_attr_charge_start_threshold = __ATTR( <------>charge_start_threshold, <------>0644, <------>charge_control_start_threshold_show, <------>charge_control_start_threshold_store ); static struct device_attribute dev_attr_charge_stop_threshold = __ATTR( <------>charge_stop_threshold, <------>0644, <------>charge_control_end_threshold_show, <------>charge_control_end_threshold_store ); static struct attribute *tpacpi_battery_attrs[] = { <------>&dev_attr_charge_control_start_threshold.attr, <------>&dev_attr_charge_control_end_threshold.attr, <------>&dev_attr_charge_start_threshold.attr, <------>&dev_attr_charge_stop_threshold.attr, <------>NULL, }; ATTRIBUTE_GROUPS(tpacpi_battery); /* ACPI battery hooking */ static int tpacpi_battery_add(struct power_supply *battery) { <------>int batteryid = tpacpi_battery_get_id(battery->desc->name); <------>if (tpacpi_battery_probe(batteryid)) <------><------>return -ENODEV; <------>if (device_add_groups(&battery->dev, tpacpi_battery_groups)) <------><------>return -ENODEV; <------>return 0; } static int tpacpi_battery_remove(struct power_supply *battery) { <------>device_remove_groups(&battery->dev, tpacpi_battery_groups); <------>return 0; } static struct acpi_battery_hook battery_hook = { <------>.add_battery = tpacpi_battery_add, <------>.remove_battery = tpacpi_battery_remove, <------>.name = "ThinkPad Battery Extension", }; /* Subdriver init/exit */ static const struct tpacpi_quirk battery_quirk_table[] __initconst = { <------>/* <------> * Individual addressing is broken on models that expose the <------> * primary battery as BAT1. <------> */ <------>TPACPI_Q_LNV('J', '7', true), /* B5400 */ <------>TPACPI_Q_LNV('J', 'I', true), /* Thinkpad 11e */ <------>TPACPI_Q_LNV3('R', '0', 'B', true), /* Thinkpad 11e gen 3 */ <------>TPACPI_Q_LNV3('R', '0', 'C', true), /* Thinkpad 13 */ <------>TPACPI_Q_LNV3('R', '0', 'J', true), /* Thinkpad 13 gen 2 */ <------>TPACPI_Q_LNV3('R', '0', 'K', true), /* Thinkpad 11e gen 4 celeron BIOS */ }; static int __init tpacpi_battery_init(struct ibm_init_struct *ibm) { <------>memset(&battery_info, 0, sizeof(battery_info)); <------>tp_features.battery_force_primary = tpacpi_check_quirks( <------><------><------><------><------>battery_quirk_table, <------><------><------><------><------>ARRAY_SIZE(battery_quirk_table)); <------>battery_hook_register(&battery_hook); <------>return 0; } static void tpacpi_battery_exit(void) { <------>battery_hook_unregister(&battery_hook); } static struct ibm_struct battery_driver_data = { <------>.name = "battery", <------>.exit = tpacpi_battery_exit, }; /************************************************************************* * LCD Shadow subdriver, for the Lenovo PrivacyGuard feature */ static int lcdshadow_state; static int lcdshadow_on_off(bool state) { <------>acpi_handle set_shadow_handle; <------>int output; <------>if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "SSSS", &set_shadow_handle))) { <------><------>pr_warn("Thinkpad ACPI has no %s interface.\n", "SSSS"); <------><------>return -EIO; <------>} <------>if (!acpi_evalf(set_shadow_handle, &output, NULL, "dd", (int)state)) <------><------>return -EIO; <------>lcdshadow_state = state; <------>return 0; } static int lcdshadow_set(bool on) { <------>if (lcdshadow_state < 0) <------><------>return lcdshadow_state; <------>if (lcdshadow_state == on) <------><------>return 0; <------>return lcdshadow_on_off(on); } static int tpacpi_lcdshadow_init(struct ibm_init_struct *iibm) { <------>acpi_handle get_shadow_handle; <------>int output; <------>if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "GSSS", &get_shadow_handle))) { <------><------>lcdshadow_state = -ENODEV; <------><------>return 0; <------>} <------>if (!acpi_evalf(get_shadow_handle, &output, NULL, "dd", 0)) { <------><------>lcdshadow_state = -EIO; <------><------>return -EIO; <------>} <------>if (!(output & 0x10000)) { <------><------>lcdshadow_state = -ENODEV; <------><------>return 0; <------>} <------>lcdshadow_state = output & 0x1; <------>return 0; } static void lcdshadow_resume(void) { <------>if (lcdshadow_state >= 0) <------><------>lcdshadow_on_off(lcdshadow_state); } static int lcdshadow_read(struct seq_file *m) { <------>if (lcdshadow_state < 0) { <------><------>seq_puts(m, "status:\t\tnot supported\n"); <------>} else { <------><------>seq_printf(m, "status:\t\t%d\n", lcdshadow_state); <------><------>seq_puts(m, "commands:\t0, 1\n"); <------>} <------>return 0; } static int lcdshadow_write(char *buf) { <------>char *cmd; <------>int res, state = -EINVAL; <------>if (lcdshadow_state < 0) <------><------>return -ENODEV; <------>while ((cmd = strsep(&buf, ","))) { <------><------>res = kstrtoint(cmd, 10, &state); <------><------>if (res < 0) <------><------><------>return res; <------>} <------>if (state >= 2 || state < 0) <------><------>return -EINVAL; <------>return lcdshadow_set(state); } static struct ibm_struct lcdshadow_driver_data = { <------>.name = "lcdshadow", <------>.resume = lcdshadow_resume, <------>.read = lcdshadow_read, <------>.write = lcdshadow_write, }; /************************************************************************* * DYTC subdriver, for the Lenovo lapmode feature */ #define DYTC_CMD_GET 2 /* To get current IC function and mode */ #define DYTC_GET_LAPMODE_BIT 17 /* Set when in lapmode */ static bool dytc_lapmode; static void dytc_lapmode_notify_change(void) { <------>sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, "dytc_lapmode"); } static int dytc_command(int command, int *output) { <------>acpi_handle dytc_handle; <------>if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "DYTC", &dytc_handle))) { <------><------>/* Platform doesn't support DYTC */ <------><------>return -ENODEV; <------>} <------>if (!acpi_evalf(dytc_handle, output, NULL, "dd", command)) <------><------>return -EIO; <------>return 0; } static int dytc_lapmode_get(bool *state) { <------>int output, err; <------>err = dytc_command(DYTC_CMD_GET, &output); <------>if (err) <------><------>return err; <------>*state = output & BIT(DYTC_GET_LAPMODE_BIT) ? true : false; <------>return 0; } static void dytc_lapmode_refresh(void) { <------>bool new_state; <------>int err; <------>err = dytc_lapmode_get(&new_state); <------>if (err || (new_state == dytc_lapmode)) <------><------>return; <------>dytc_lapmode = new_state; <------>dytc_lapmode_notify_change(); } /* sysfs lapmode entry */ static ssize_t dytc_lapmode_show(struct device *dev, <------><------><------><------><------>struct device_attribute *attr, <------><------><------><------><------>char *buf) { <------>return snprintf(buf, PAGE_SIZE, "%d\n", dytc_lapmode); } static DEVICE_ATTR_RO(dytc_lapmode); static struct attribute *dytc_attributes[] = { <------>&dev_attr_dytc_lapmode.attr, <------>NULL, }; static const struct attribute_group dytc_attr_group = { <------>.attrs = dytc_attributes, }; static int tpacpi_dytc_init(struct ibm_init_struct *iibm) { <------>int err; <------>err = dytc_lapmode_get(&dytc_lapmode); <------>/* If support isn't available (ENODEV) then don't return an error <------> * but just don't create the sysfs group <------> */ <------>if (err == -ENODEV) <------><------>return 0; <------>/* For all other errors we can flag the failure */ <------>if (err) <------><------>return err; <------>/* Platform supports this feature - create the group */ <------>err = sysfs_create_group(&tpacpi_pdev->dev.kobj, &dytc_attr_group); <------>return err; } static void dytc_exit(void) { <------>sysfs_remove_group(&tpacpi_pdev->dev.kobj, &dytc_attr_group); } static struct ibm_struct dytc_driver_data = { <------>.name = "dytc", <------>.exit = dytc_exit, }; /**************************************************************************** **************************************************************************** * * Infrastructure * **************************************************************************** ****************************************************************************/ /* * HKEY event callout for other subdrivers go here * (yes, it is ugly, but it is quick, safe, and gets the job done */ static void tpacpi_driver_event(const unsigned int hkey_event) { <------>if (ibm_backlight_device) { <------><------>switch (hkey_event) { <------><------>case TP_HKEY_EV_BRGHT_UP: <------><------>case TP_HKEY_EV_BRGHT_DOWN: <------><------><------>tpacpi_brightness_notify_change(); <------><------>} <------>} <------>if (alsa_card) { <------><------>switch (hkey_event) { <------><------>case TP_HKEY_EV_VOL_UP: <------><------>case TP_HKEY_EV_VOL_DOWN: <------><------>case TP_HKEY_EV_VOL_MUTE: <------><------><------>volume_alsa_notify_change(); <------><------>} <------>} <------>if (tp_features.kbdlight && hkey_event == TP_HKEY_EV_KBD_LIGHT) { <------><------>enum led_brightness brightness; <------><------>mutex_lock(&kbdlight_mutex); <------><------>/* <------><------> * Check the brightness actually changed, setting the brightness <------><------> * through kbdlight_set_level() also triggers this event. <------><------> */ <------><------>brightness = kbdlight_sysfs_get(NULL); <------><------>if (kbdlight_brightness != brightness) { <------><------><------>kbdlight_brightness = brightness; <------><------><------>led_classdev_notify_brightness_hw_changed( <------><------><------><------>&tpacpi_led_kbdlight.led_classdev, brightness); <------><------>} <------><------>mutex_unlock(&kbdlight_mutex); <------>} <------>if (hkey_event == TP_HKEY_EV_THM_CSM_COMPLETED) <------><------>dytc_lapmode_refresh(); } static void hotkey_driver_event(const unsigned int scancode) { <------>tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode); } /* --------------------------------------------------------------------- */ /* /proc support */ static struct proc_dir_entry *proc_dir; /* * Module and infrastructure proble, init and exit handling */ static bool force_load; #ifdef CONFIG_THINKPAD_ACPI_DEBUG static const char * __init str_supported(int is_supported) { <------>static char text_unsupported[] __initdata = "not supported"; <------>return (is_supported) ? &text_unsupported[4] : &text_unsupported[0]; } #endif /* CONFIG_THINKPAD_ACPI_DEBUG */ static void ibm_exit(struct ibm_struct *ibm) { <------>dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name); <------>list_del_init(&ibm->all_drivers); <------>if (ibm->flags.acpi_notify_installed) { <------><------>dbg_printk(TPACPI_DBG_EXIT, <------><------><------>"%s: acpi_remove_notify_handler\n", ibm->name); <------><------>BUG_ON(!ibm->acpi); <------><------>acpi_remove_notify_handler(*ibm->acpi->handle, <------><------><------><------><------> ibm->acpi->type, <------><------><------><------><------> dispatch_acpi_notify); <------><------>ibm->flags.acpi_notify_installed = 0; <------>} <------>if (ibm->flags.proc_created) { <------><------>dbg_printk(TPACPI_DBG_EXIT, <------><------><------>"%s: remove_proc_entry\n", ibm->name); <------><------>remove_proc_entry(ibm->name, proc_dir); <------><------>ibm->flags.proc_created = 0; <------>} <------>if (ibm->flags.acpi_driver_registered) { <------><------>dbg_printk(TPACPI_DBG_EXIT, <------><------><------>"%s: acpi_bus_unregister_driver\n", ibm->name); <------><------>BUG_ON(!ibm->acpi); <------><------>acpi_bus_unregister_driver(ibm->acpi->driver); <------><------>kfree(ibm->acpi->driver); <------><------>ibm->acpi->driver = NULL; <------><------>ibm->flags.acpi_driver_registered = 0; <------>} <------>if (ibm->flags.init_called && ibm->exit) { <------><------>ibm->exit(); <------><------>ibm->flags.init_called = 0; <------>} <------>dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name); } static int __init ibm_init(struct ibm_init_struct *iibm) { <------>int ret; <------>struct ibm_struct *ibm = iibm->data; <------>struct proc_dir_entry *entry; <------>BUG_ON(ibm == NULL); <------>INIT_LIST_HEAD(&ibm->all_drivers); <------>if (ibm->flags.experimental && !experimental) <------><------>return 0; <------>dbg_printk(TPACPI_DBG_INIT, <------><------>"probing for %s\n", ibm->name); <------>if (iibm->init) { <------><------>ret = iibm->init(iibm); <------><------>if (ret > 0) <------><------><------>return 0; /* probe failed */ <------><------>if (ret) <------><------><------>return ret; <------><------>ibm->flags.init_called = 1; <------>} <------>if (ibm->acpi) { <------><------>if (ibm->acpi->hid) { <------><------><------>ret = register_tpacpi_subdriver(ibm); <------><------><------>if (ret) <------><------><------><------>goto err_out; <------><------>} <------><------>if (ibm->acpi->notify) { <------><------><------>ret = setup_acpi_notify(ibm); <------><------><------>if (ret == -ENODEV) { <------><------><------><------>pr_notice("disabling subdriver %s\n", <------><------><------><------><------> ibm->name); <------><------><------><------>ret = 0; <------><------><------><------>goto err_out; <------><------><------>} <------><------><------>if (ret < 0) <------><------><------><------>goto err_out; <------><------>} <------>} <------>dbg_printk(TPACPI_DBG_INIT, <------><------>"%s installed\n", ibm->name); <------>if (ibm->read) { <------><------>umode_t mode = iibm->base_procfs_mode; <------><------>if (!mode) <------><------><------>mode = S_IRUGO; <------><------>if (ibm->write) <------><------><------>mode |= S_IWUSR; <------><------>entry = proc_create_data(ibm->name, mode, proc_dir, <------><------><------><------><------> &dispatch_proc_ops, ibm); <------><------>if (!entry) { <------><------><------>pr_err("unable to create proc entry %s\n", ibm->name); <------><------><------>ret = -ENODEV; <------><------><------>goto err_out; <------><------>} <------><------>ibm->flags.proc_created = 1; <------>} <------>list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers); <------>return 0; err_out: <------>dbg_printk(TPACPI_DBG_INIT, <------><------>"%s: at error exit path with result %d\n", <------><------>ibm->name, ret); <------>ibm_exit(ibm); <------>return (ret < 0) ? ret : 0; } /* Probing */ static char __init tpacpi_parse_fw_id(const char * const s, <------><------><------><------> u32 *model, u16 *release) { <------>int i; <------>if (!s || strlen(s) < 8) <------><------>goto invalid; <------>for (i = 0; i < 8; i++) <------><------>if (!((s[i] >= '0' && s[i] <= '9') || <------><------> (s[i] >= 'A' && s[i] <= 'Z'))) <------><------><------>goto invalid; <------>/* <------> * Most models: xxyTkkWW (#.##c) <------> * Ancient 570/600 and -SL lacks (#.##c) <------> */ <------>if (s[3] == 'T' || s[3] == 'N') { <------><------>*model = TPID(s[0], s[1]); <------><------>*release = TPVER(s[4], s[5]); <------><------>return s[2]; <------>/* New models: xxxyTkkW (#.##c); T550 and some others */ <------>} else if (s[4] == 'T' || s[4] == 'N') { <------><------>*model = TPID3(s[0], s[1], s[2]); <------><------>*release = TPVER(s[5], s[6]); <------><------>return s[3]; <------>} invalid: <------>return '\0'; } static void find_new_ec_fwstr(const struct dmi_header *dm, void *private) { <------>char *ec_fw_string = (char *) private; <------>const char *dmi_data = (const char *)dm; <------>/* <------> * ThinkPad Embedded Controller Program Table on newer models <------> * <------> * Offset | Name | Width | Description <------> * ---------------------------------------------------- <------> * 0x00 | Type | BYTE | 0x8C <------> * 0x01 | Length | BYTE | <------> * 0x02 | Handle | WORD | Varies <------> * 0x04 | Signature | BYTEx6 | ASCII for "LENOVO" <------> * 0x0A | OEM struct offset | BYTE | 0x0B <------> * 0x0B | OEM struct number | BYTE | 0x07, for this structure <------> * 0x0C | OEM struct revision | BYTE | 0x01, for this format <------> * 0x0D | ECP version ID | STR ID | <------> * 0x0E | ECP release date | STR ID | <------> */ <------>/* Return if data structure not match */ <------>if (dm->type != 140 || dm->length < 0x0F || <------>memcmp(dmi_data + 4, "LENOVO", 6) != 0 || <------>dmi_data[0x0A] != 0x0B || dmi_data[0x0B] != 0x07 || <------>dmi_data[0x0C] != 0x01) <------><------>return; <------>/* fwstr is the first 8byte string */ <------>strncpy(ec_fw_string, dmi_data + 0x0F, 8); } /* returns 0 - probe ok, or < 0 - probe error. * Probe ok doesn't mean thinkpad found. * On error, kfree() cleanup on tp->* is not performed, caller must do it */ static int __must_check __init get_thinkpad_model_data( <------><------><------><------><------><------>struct thinkpad_id_data *tp) { <------>const struct dmi_device *dev = NULL; <------>char ec_fw_string[18] = {0}; <------>char const *s; <------>char t; <------>if (!tp) <------><------>return -EINVAL; <------>memset(tp, 0, sizeof(*tp)); <------>if (dmi_name_in_vendors("IBM")) <------><------>tp->vendor = PCI_VENDOR_ID_IBM; <------>else if (dmi_name_in_vendors("LENOVO")) <------><------>tp->vendor = PCI_VENDOR_ID_LENOVO; <------>else <------><------>return 0; <------>s = dmi_get_system_info(DMI_BIOS_VERSION); <------>tp->bios_version_str = kstrdup(s, GFP_KERNEL); <------>if (s && !tp->bios_version_str) <------><------>return -ENOMEM; <------>/* Really ancient ThinkPad 240X will fail this, which is fine */ <------>t = tpacpi_parse_fw_id(tp->bios_version_str, <------><------><------> &tp->bios_model, &tp->bios_release); <------>if (t != 'E' && t != 'C') <------><------>return 0; <------>/* <------> * ThinkPad T23 or newer, A31 or newer, R50e or newer, <------> * X32 or newer, all Z series; Some models must have an <------> * up-to-date BIOS or they will not be detected. <------> * <------> * See https://thinkwiki.org/wiki/List_of_DMI_IDs <------> */ <------>while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) { <------><------>if (sscanf(dev->name, <------><------><------> "IBM ThinkPad Embedded Controller -[%17c", <------><------><------> ec_fw_string) == 1) { <------><------><------>ec_fw_string[sizeof(ec_fw_string) - 1] = 0; <------><------><------>ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; <------><------><------>break; <------><------>} <------>} <------>/* Newer ThinkPads have different EC program info table */ <------>if (!ec_fw_string[0]) <------><------>dmi_walk(find_new_ec_fwstr, &ec_fw_string); <------>if (ec_fw_string[0]) { <------><------>tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); <------><------>if (!tp->ec_version_str) <------><------><------>return -ENOMEM; <------><------>t = tpacpi_parse_fw_id(ec_fw_string, <------><------><------> &tp->ec_model, &tp->ec_release); <------><------>if (t != 'H') { <------><------><------>pr_notice("ThinkPad firmware release %s doesn't match the known patterns\n", <------><------><------><------> ec_fw_string); <------><------><------>pr_notice("please report this to %s\n", TPACPI_MAIL); <------><------>} <------>} <------>s = dmi_get_system_info(DMI_PRODUCT_VERSION); <------>if (s && !(strncasecmp(s, "ThinkPad", 8) && strncasecmp(s, "Lenovo", 6))) { <------><------>tp->model_str = kstrdup(s, GFP_KERNEL); <------><------>if (!tp->model_str) <------><------><------>return -ENOMEM; <------>} else { <------><------>s = dmi_get_system_info(DMI_BIOS_VENDOR); <------><------>if (s && !(strncasecmp(s, "Lenovo", 6))) { <------><------><------>tp->model_str = kstrdup(s, GFP_KERNEL); <------><------><------>if (!tp->model_str) <------><------><------><------>return -ENOMEM; <------><------>} <------>} <------>s = dmi_get_system_info(DMI_PRODUCT_NAME); <------>tp->nummodel_str = kstrdup(s, GFP_KERNEL); <------>if (s && !tp->nummodel_str) <------><------>return -ENOMEM; <------>return 0; } static int __init probe_for_thinkpad(void) { <------>int is_thinkpad; <------>if (acpi_disabled) <------><------>return -ENODEV; <------>/* It would be dangerous to run the driver in this case */ <------>if (!tpacpi_is_ibm() && !tpacpi_is_lenovo()) <------><------>return -ENODEV; <------>/* <------> * Non-ancient models have better DMI tagging, but very old models <------> * don't. tpacpi_is_fw_known() is a cheat to help in that case. <------> */ <------>is_thinkpad = (thinkpad_id.model_str != NULL) || <------><------> (thinkpad_id.ec_model != 0) || <------><------> tpacpi_is_fw_known(); <------>/* The EC handler is required */ <------>tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle); <------>if (!ec_handle) { <------><------>if (is_thinkpad) <------><------><------>pr_err("Not yet supported ThinkPad detected!\n"); <------><------>return -ENODEV; <------>} <------>if (!is_thinkpad && !force_load) <------><------>return -ENODEV; <------>return 0; } static void __init thinkpad_acpi_init_banner(void) { <------>pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION); <------>pr_info("%s\n", TPACPI_URL); <------>pr_info("ThinkPad BIOS %s, EC %s\n", <------><------>(thinkpad_id.bios_version_str) ? <------><------><------>thinkpad_id.bios_version_str : "unknown", <------><------>(thinkpad_id.ec_version_str) ? <------><------><------>thinkpad_id.ec_version_str : "unknown"); <------>BUG_ON(!thinkpad_id.vendor); <------>if (thinkpad_id.model_str) <------><------>pr_info("%s %s, model %s\n", <------><------><------>(thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ? <------><------><------><------>"IBM" : ((thinkpad_id.vendor == <------><------><------><------><------><------>PCI_VENDOR_ID_LENOVO) ? <------><------><------><------><------>"Lenovo" : "Unknown vendor"), <------><------><------>thinkpad_id.model_str, <------><------><------>(thinkpad_id.nummodel_str) ? <------><------><------><------>thinkpad_id.nummodel_str : "unknown"); } /* Module init, exit, parameters */ static struct ibm_init_struct ibms_init[] __initdata = { <------>{ <------><------>.data = &thinkpad_acpi_driver_data, <------>}, <------>{ <------><------>.init = hotkey_init, <------><------>.data = &hotkey_driver_data, <------>}, <------>{ <------><------>.init = bluetooth_init, <------><------>.data = &bluetooth_driver_data, <------>}, <------>{ <------><------>.init = wan_init, <------><------>.data = &wan_driver_data, <------>}, <------>{ <------><------>.init = uwb_init, <------><------>.data = &uwb_driver_data, <------>}, #ifdef CONFIG_THINKPAD_ACPI_VIDEO <------>{ <------><------>.init = video_init, <------><------>.base_procfs_mode = S_IRUSR, <------><------>.data = &video_driver_data, <------>}, #endif <------>{ <------><------>.init = kbdlight_init, <------><------>.data = &kbdlight_driver_data, <------>}, <------>{ <------><------>.init = light_init, <------><------>.data = &light_driver_data, <------>}, <------>{ <------><------>.init = cmos_init, <------><------>.data = &cmos_driver_data, <------>}, <------>{ <------><------>.init = led_init, <------><------>.data = &led_driver_data, <------>}, <------>{ <------><------>.init = beep_init, <------><------>.data = &beep_driver_data, <------>}, <------>{ <------><------>.init = thermal_init, <------><------>.data = &thermal_driver_data, <------>}, <------>{ <------><------>.init = brightness_init, <------><------>.data = &brightness_driver_data, <------>}, <------>{ <------><------>.init = volume_init, <------><------>.data = &volume_driver_data, <------>}, <------>{ <------><------>.init = fan_init, <------><------>.data = &fan_driver_data, <------>}, <------>{ <------><------>.init = mute_led_init, <------><------>.data = &mute_led_driver_data, <------>}, <------>{ <------><------>.init = tpacpi_battery_init, <------><------>.data = &battery_driver_data, <------>}, <------>{ <------><------>.init = tpacpi_lcdshadow_init, <------><------>.data = &lcdshadow_driver_data, <------>}, <------>{ <------><------>.init = tpacpi_dytc_init, <------><------>.data = &dytc_driver_data, <------>}, }; static int __init set_ibm_param(const char *val, const struct kernel_param *kp) { <------>unsigned int i; <------>struct ibm_struct *ibm; <------>if (!kp || !kp->name || !val) <------><------>return -EINVAL; <------>for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { <------><------>ibm = ibms_init[i].data; <------><------>WARN_ON(ibm == NULL); <------><------>if (!ibm || !ibm->name) <------><------><------>continue; <------><------>if (strcmp(ibm->name, kp->name) == 0 && ibm->write) { <------><------><------>if (strlen(val) > sizeof(ibms_init[i].param) - 1) <------><------><------><------>return -ENOSPC; <------><------><------>strcpy(ibms_init[i].param, val); <------><------><------>return 0; <------><------>} <------>} <------>return -EINVAL; } module_param(experimental, int, 0444); MODULE_PARM_DESC(experimental, <------><------> "Enables experimental features when non-zero"); module_param_named(debug, dbg_level, uint, 0); MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); module_param(force_load, bool, 0444); MODULE_PARM_DESC(force_load, <------><------> "Attempts to load the driver even on a mis-identified ThinkPad when true"); module_param_named(fan_control, fan_control_allowed, bool, 0444); MODULE_PARM_DESC(fan_control, <------><------> "Enables setting fan parameters features when true"); module_param_named(brightness_mode, brightness_mode, uint, 0444); MODULE_PARM_DESC(brightness_mode, <------><------> "Selects brightness control strategy: 0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM"); module_param(brightness_enable, uint, 0444); MODULE_PARM_DESC(brightness_enable, <------><------> "Enables backlight control when 1, disables when 0"); #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT module_param_named(volume_mode, volume_mode, uint, 0444); MODULE_PARM_DESC(volume_mode, <------><------> "Selects volume control strategy: 0=auto, 1=EC, 2=N/A, 3=EC+NVRAM"); module_param_named(volume_capabilities, volume_capabilities, uint, 0444); MODULE_PARM_DESC(volume_capabilities, <------><------> "Selects the mixer capabilities: 0=auto, 1=volume and mute, 2=mute only"); module_param_named(volume_control, volume_control_allowed, bool, 0444); MODULE_PARM_DESC(volume_control, <------><------> "Enables software override for the console audio control when true"); module_param_named(software_mute, software_mute_requested, bool, 0444); MODULE_PARM_DESC(software_mute, <------><------> "Request full software mute control"); /* ALSA module API parameters */ module_param_named(index, alsa_index, int, 0444); MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer"); module_param_named(id, alsa_id, charp, 0444); MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer"); module_param_named(enable, alsa_enable, bool, 0444); MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer"); #endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */ /* The module parameter can't be read back, that's why 0 is used here */ #define TPACPI_PARAM(feature) \ <------>module_param_call(feature, set_ibm_param, NULL, NULL, 0); \ <------>MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command at module load, see documentation") TPACPI_PARAM(hotkey); TPACPI_PARAM(bluetooth); TPACPI_PARAM(video); TPACPI_PARAM(light); TPACPI_PARAM(cmos); TPACPI_PARAM(led); TPACPI_PARAM(beep); TPACPI_PARAM(brightness); TPACPI_PARAM(volume); TPACPI_PARAM(fan); #ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES module_param(dbg_wlswemul, uint, 0444); MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation"); module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0); MODULE_PARM_DESC(wlsw_state, <------><------> "Initial state of the emulated WLSW switch"); module_param(dbg_bluetoothemul, uint, 0444); MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation"); module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0); MODULE_PARM_DESC(bluetooth_state, <------><------> "Initial state of the emulated bluetooth switch"); module_param(dbg_wwanemul, uint, 0444); MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation"); module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0); MODULE_PARM_DESC(wwan_state, <------><------> "Initial state of the emulated WWAN switch"); module_param(dbg_uwbemul, uint, 0444); MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation"); module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0); MODULE_PARM_DESC(uwb_state, <------><------> "Initial state of the emulated UWB switch"); #endif static void thinkpad_acpi_module_exit(void) { <------>struct ibm_struct *ibm, *itmp; <------>tpacpi_lifecycle = TPACPI_LIFE_EXITING; <------>list_for_each_entry_safe_reverse(ibm, itmp, <------><------><------><------><------> &tpacpi_all_drivers, <------><------><------><------><------> all_drivers) { <------><------>ibm_exit(ibm); <------>} <------>dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n"); <------>if (tpacpi_inputdev) { <------><------>if (tp_features.input_device_registered) <------><------><------>input_unregister_device(tpacpi_inputdev); <------><------>else <------><------><------>input_free_device(tpacpi_inputdev); <------><------>kfree(hotkey_keycode_map); <------>} <------>if (tpacpi_hwmon) <------><------>hwmon_device_unregister(tpacpi_hwmon); <------>if (tpacpi_sensors_pdev) <------><------>platform_device_unregister(tpacpi_sensors_pdev); <------>if (tpacpi_pdev) <------><------>platform_device_unregister(tpacpi_pdev); <------>if (tp_features.sensors_pdrv_attrs_registered) <------><------>tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver); <------>if (tp_features.platform_drv_attrs_registered) <------><------>tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); <------>if (tp_features.sensors_pdrv_registered) <------><------>platform_driver_unregister(&tpacpi_hwmon_pdriver); <------>if (tp_features.platform_drv_registered) <------><------>platform_driver_unregister(&tpacpi_pdriver); <------>if (proc_dir) <------><------>remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir); <------>if (tpacpi_wq) <------><------>destroy_workqueue(tpacpi_wq); <------>kfree(thinkpad_id.bios_version_str); <------>kfree(thinkpad_id.ec_version_str); <------>kfree(thinkpad_id.model_str); <------>kfree(thinkpad_id.nummodel_str); } static int __init thinkpad_acpi_module_init(void) { <------>int ret, i; <------>tpacpi_lifecycle = TPACPI_LIFE_INIT; <------>/* Driver-level probe */ <------>ret = get_thinkpad_model_data(&thinkpad_id); <------>if (ret) { <------><------>pr_err("unable to get DMI data: %d\n", ret); <------><------>thinkpad_acpi_module_exit(); <------><------>return ret; <------>} <------>ret = probe_for_thinkpad(); <------>if (ret) { <------><------>thinkpad_acpi_module_exit(); <------><------>return ret; <------>} <------>/* Driver initialization */ <------>thinkpad_acpi_init_banner(); <------>tpacpi_check_outdated_fw(); <------>TPACPI_ACPIHANDLE_INIT(ecrd); <------>TPACPI_ACPIHANDLE_INIT(ecwr); <------>tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME); <------>if (!tpacpi_wq) { <------><------>thinkpad_acpi_module_exit(); <------><------>return -ENOMEM; <------>} <------>proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir); <------>if (!proc_dir) { <------><------>pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n"); <------><------>thinkpad_acpi_module_exit(); <------><------>return -ENODEV; <------>} <------>ret = platform_driver_register(&tpacpi_pdriver); <------>if (ret) { <------><------>pr_err("unable to register main platform driver\n"); <------><------>thinkpad_acpi_module_exit(); <------><------>return ret; <------>} <------>tp_features.platform_drv_registered = 1; <------>ret = platform_driver_register(&tpacpi_hwmon_pdriver); <------>if (ret) { <------><------>pr_err("unable to register hwmon platform driver\n"); <------><------>thinkpad_acpi_module_exit(); <------><------>return ret; <------>} <------>tp_features.sensors_pdrv_registered = 1; <------>ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); <------>if (!ret) { <------><------>tp_features.platform_drv_attrs_registered = 1; <------><------>ret = tpacpi_create_driver_attributes( <------><------><------><------><------>&tpacpi_hwmon_pdriver.driver); <------>} <------>if (ret) { <------><------>pr_err("unable to create sysfs driver attributes\n"); <------><------>thinkpad_acpi_module_exit(); <------><------>return ret; <------>} <------>tp_features.sensors_pdrv_attrs_registered = 1; <------>/* Device initialization */ <------>tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1, <------><------><------><------><------><------><------>NULL, 0); <------>if (IS_ERR(tpacpi_pdev)) { <------><------>ret = PTR_ERR(tpacpi_pdev); <------><------>tpacpi_pdev = NULL; <------><------>pr_err("unable to register platform device\n"); <------><------>thinkpad_acpi_module_exit(); <------><------>return ret; <------>} <------>tpacpi_sensors_pdev = platform_device_register_simple( <------><------><------><------><------><------>TPACPI_HWMON_DRVR_NAME, <------><------><------><------><------><------>-1, NULL, 0); <------>if (IS_ERR(tpacpi_sensors_pdev)) { <------><------>ret = PTR_ERR(tpacpi_sensors_pdev); <------><------>tpacpi_sensors_pdev = NULL; <------><------>pr_err("unable to register hwmon platform device\n"); <------><------>thinkpad_acpi_module_exit(); <------><------>return ret; <------>} <------>tp_features.sensors_pdev_attrs_registered = 1; <------>tpacpi_hwmon = hwmon_device_register_with_groups( <------><------>&tpacpi_sensors_pdev->dev, TPACPI_NAME, NULL, NULL); <------>if (IS_ERR(tpacpi_hwmon)) { <------><------>ret = PTR_ERR(tpacpi_hwmon); <------><------>tpacpi_hwmon = NULL; <------><------>pr_err("unable to register hwmon device\n"); <------><------>thinkpad_acpi_module_exit(); <------><------>return ret; <------>} <------>mutex_init(&tpacpi_inputdev_send_mutex); <------>tpacpi_inputdev = input_allocate_device(); <------>if (!tpacpi_inputdev) { <------><------>thinkpad_acpi_module_exit(); <------><------>return -ENOMEM; <------>} else { <------><------>/* Prepare input device, but don't register */ <------><------>tpacpi_inputdev->name = "ThinkPad Extra Buttons"; <------><------>tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0"; <------><------>tpacpi_inputdev->id.bustype = BUS_HOST; <------><------>tpacpi_inputdev->id.vendor = thinkpad_id.vendor; <------><------>tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT; <------><------>tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION; <------><------>tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev; <------>} <------>/* Init subdriver dependencies */ <------>tpacpi_detect_brightness_capabilities(); <------>/* Init subdrivers */ <------>for (i = 0; i < ARRAY_SIZE(ibms_init); i++) { <------><------>ret = ibm_init(&ibms_init[i]); <------><------>if (ret >= 0 && *ibms_init[i].param) <------><------><------>ret = ibms_init[i].data->write(ibms_init[i].param); <------><------>if (ret < 0) { <------><------><------>thinkpad_acpi_module_exit(); <------><------><------>return ret; <------><------>} <------>} <------>tpacpi_lifecycle = TPACPI_LIFE_RUNNING; <------>ret = input_register_device(tpacpi_inputdev); <------>if (ret < 0) { <------><------>pr_err("unable to register input device\n"); <------><------>thinkpad_acpi_module_exit(); <------><------>return ret; <------>} else { <------><------>tp_features.input_device_registered = 1; <------>} <------>return 0; } MODULE_ALIAS(TPACPI_DRVR_SHORTNAME); /* * This will autoload the driver in almost every ThinkPad * in widespread use. * * Only _VERY_ old models, like the 240, 240x and 570 lack * the HKEY event interface. */ MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids); /* * DMI matching for module autoloading * * See https://thinkwiki.org/wiki/List_of_DMI_IDs * See https://thinkwiki.org/wiki/BIOS_Upgrade_Downloads * * Only models listed in thinkwiki will be supported, so add yours * if it is not there yet. */ #define IBM_BIOS_MODULE_ALIAS(__type) \ <------>MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*") /* Ancient thinkpad BIOSes have to be identified by * BIOS type or model number, and there are far less * BIOS types than model numbers... */ IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */ MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>"); MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>"); MODULE_DESCRIPTION(TPACPI_DESC); MODULE_VERSION(TPACPI_VERSION); MODULE_LICENSE("GPL"); module_init(thinkpad_acpi_module_init); module_exit(thinkpad_acpi_module_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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