^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Intel HID event & 5 button array driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2015 Alex Hung <alex.hung@canonical.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2015 Andrew Lutomirski <luto@kernel.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/dmi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/input/sparse-keymap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/suspend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) MODULE_AUTHOR("Alex Hung");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static const struct acpi_device_id intel_hid_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {"INT33D5", 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) {"INTC1051", 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {"", 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) MODULE_DEVICE_TABLE(acpi, intel_hid_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /* In theory, these are HID usages. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static const struct key_entry intel_hid_keymap[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) /* 1: LSuper (Page 0x07, usage 0xE3) -- unclear what to do */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /* 2: Toggle SW_ROTATE_LOCK -- easy to implement if seen in wild */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) { KE_KEY, 3, { KEY_NUMLOCK } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) { KE_KEY, 4, { KEY_HOME } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) { KE_KEY, 5, { KEY_END } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) { KE_KEY, 6, { KEY_PAGEUP } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) { KE_KEY, 7, { KEY_PAGEDOWN } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) { KE_KEY, 8, { KEY_RFKILL } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) { KE_KEY, 9, { KEY_POWER } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) { KE_KEY, 11, { KEY_SLEEP } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /* 13 has two different meanings in the spec -- ignore it. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) { KE_KEY, 14, { KEY_STOPCD } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) { KE_KEY, 15, { KEY_PLAYPAUSE } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) { KE_KEY, 16, { KEY_MUTE } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) { KE_KEY, 17, { KEY_VOLUMEUP } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) { KE_KEY, 18, { KEY_VOLUMEDOWN } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) { KE_KEY, 19, { KEY_BRIGHTNESSUP } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) { KE_KEY, 20, { KEY_BRIGHTNESSDOWN } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* 27: wake -- needs special handling */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) { KE_END },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* 5 button array notification value. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static const struct key_entry intel_array_keymap[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) { KE_KEY, 0xC2, { KEY_LEFTMETA } }, /* Press */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) { KE_IGNORE, 0xC3, { KEY_LEFTMETA } }, /* Release */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) { KE_KEY, 0xC4, { KEY_VOLUMEUP } }, /* Press */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) { KE_IGNORE, 0xC5, { KEY_VOLUMEUP } }, /* Release */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) { KE_KEY, 0xC6, { KEY_VOLUMEDOWN } }, /* Press */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) { KE_IGNORE, 0xC7, { KEY_VOLUMEDOWN } }, /* Release */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) { KE_KEY, 0xC8, { KEY_ROTATE_LOCK_TOGGLE } }, /* Press */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) { KE_IGNORE, 0xC9, { KEY_ROTATE_LOCK_TOGGLE } }, /* Release */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) { KE_KEY, 0xCE, { KEY_POWER } }, /* Press */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) { KE_IGNORE, 0xCF, { KEY_POWER } }, /* Release */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) { KE_END },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static const struct dmi_system_id button_array_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .ident = "Wacom MobileStudio Pro 13",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .matches = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) DMI_MATCH(DMI_SYS_VENDOR, "Wacom Co.,Ltd"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) DMI_MATCH(DMI_PRODUCT_NAME, "Wacom MobileStudio Pro 13"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .ident = "Wacom MobileStudio Pro 16",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .matches = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) DMI_MATCH(DMI_SYS_VENDOR, "Wacom Co.,Ltd"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) DMI_MATCH(DMI_PRODUCT_NAME, "Wacom MobileStudio Pro 16"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .ident = "HP Spectre x2 (2015)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .matches = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) DMI_MATCH(DMI_SYS_VENDOR, "HP"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) DMI_MATCH(DMI_PRODUCT_NAME, "HP Spectre x2 Detachable"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .ident = "Lenovo ThinkPad X1 Tablet Gen 2",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .matches = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) DMI_MATCH(DMI_PRODUCT_FAMILY, "ThinkPad X1 Tablet Gen 2"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct intel_hid_priv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct input_dev *array;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) bool wakeup_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #define HID_EVENT_FILTER_UUID "eeec56b3-4442-408f-a792-4edd4d758054"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) enum intel_hid_dsm_fn_codes {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) INTEL_HID_DSM_FN_INVALID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) INTEL_HID_DSM_BTNL_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) INTEL_HID_DSM_HDMM_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) INTEL_HID_DSM_HDSM_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) INTEL_HID_DSM_HDEM_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) INTEL_HID_DSM_BTNS_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) INTEL_HID_DSM_BTNE_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) INTEL_HID_DSM_HEBC_V1_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) INTEL_HID_DSM_VGBS_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) INTEL_HID_DSM_HEBC_V2_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) INTEL_HID_DSM_FN_MAX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) static const char *intel_hid_dsm_fn_to_method[INTEL_HID_DSM_FN_MAX] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) "BTNL",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) "HDMM",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) "HDSM",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) "HDEM",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) "BTNS",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) "BTNE",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) "HEBC",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) "VGBS",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) "HEBC"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) static unsigned long long intel_hid_dsm_fn_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) static guid_t intel_dsm_guid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) static bool intel_hid_execute_method(acpi_handle handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) enum intel_hid_dsm_fn_codes fn_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) unsigned long long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) union acpi_object *obj, argv4, req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) char *method_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) if (fn_index <= INTEL_HID_DSM_FN_INVALID ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) fn_index >= INTEL_HID_DSM_FN_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) method_name = (char *)intel_hid_dsm_fn_to_method[fn_index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) if (!(intel_hid_dsm_fn_mask & fn_index))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) goto skip_dsm_exec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* All methods expects a package with one integer element */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) req.type = ACPI_TYPE_INTEGER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) req.integer.value = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) argv4.type = ACPI_TYPE_PACKAGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) argv4.package.count = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) argv4.package.elements = &req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) obj = acpi_evaluate_dsm(handle, &intel_dsm_guid, 1, fn_index, &argv4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) if (obj) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) acpi_handle_debug(handle, "Exec DSM Fn code: %d[%s] success\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) fn_index, method_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) ACPI_FREE(obj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) skip_dsm_exec:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) status = acpi_execute_simple_method(handle, method_name, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) if (ACPI_SUCCESS(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) static bool intel_hid_evaluate_method(acpi_handle handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) enum intel_hid_dsm_fn_codes fn_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) unsigned long long *result)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) union acpi_object *obj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) char *method_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) if (fn_index <= INTEL_HID_DSM_FN_INVALID ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) fn_index >= INTEL_HID_DSM_FN_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) method_name = (char *)intel_hid_dsm_fn_to_method[fn_index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) if (!(intel_hid_dsm_fn_mask & fn_index))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) goto skip_dsm_eval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) obj = acpi_evaluate_dsm_typed(handle, &intel_dsm_guid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 1, fn_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) NULL, ACPI_TYPE_INTEGER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) if (obj) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) *result = obj->integer.value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) acpi_handle_debug(handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) "Eval DSM Fn code: %d[%s] results: 0x%llx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) fn_index, method_name, *result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) ACPI_FREE(obj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) skip_dsm_eval:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) status = acpi_evaluate_integer(handle, method_name, NULL, result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) if (ACPI_SUCCESS(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) static void intel_hid_init_dsm(acpi_handle handle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) union acpi_object *obj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) guid_parse(HID_EVENT_FILTER_UUID, &intel_dsm_guid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) obj = acpi_evaluate_dsm_typed(handle, &intel_dsm_guid, 1, 0, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) ACPI_TYPE_BUFFER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) if (obj) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) intel_hid_dsm_fn_mask = *obj->buffer.pointer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) ACPI_FREE(obj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) acpi_handle_debug(handle, "intel_hid_dsm_fn_mask = %llx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) intel_hid_dsm_fn_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static int intel_hid_set_enable(struct device *device, bool enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) acpi_handle handle = ACPI_HANDLE(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) /* Enable|disable features - power button is always enabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) if (!intel_hid_execute_method(handle, INTEL_HID_DSM_HDSM_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) enable)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) dev_warn(device, "failed to %sable hotkeys\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) enable ? "en" : "dis");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) static void intel_button_array_enable(struct device *device, bool enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) struct intel_hid_priv *priv = dev_get_drvdata(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) acpi_handle handle = ACPI_HANDLE(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) unsigned long long button_cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (!priv->array)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) /* Query supported platform features */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) status = acpi_evaluate_integer(handle, "BTNC", NULL, &button_cap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) dev_warn(device, "failed to get button capability\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) /* Enable|disable features - power button is always enabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) if (!intel_hid_execute_method(handle, INTEL_HID_DSM_BTNE_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) enable ? button_cap : 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) dev_warn(device, "failed to set button capability\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) static int intel_hid_pm_prepare(struct device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) if (device_may_wakeup(device)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct intel_hid_priv *priv = dev_get_drvdata(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) priv->wakeup_mode = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) static void intel_hid_pm_complete(struct device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) struct intel_hid_priv *priv = dev_get_drvdata(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) priv->wakeup_mode = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) static int intel_hid_pl_suspend_handler(struct device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) intel_button_array_enable(device, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) if (!pm_suspend_no_platform())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) intel_hid_set_enable(device, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) static int intel_hid_pl_resume_handler(struct device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) intel_hid_pm_complete(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) if (!pm_suspend_no_platform())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) intel_hid_set_enable(device, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) intel_button_array_enable(device, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) static const struct dev_pm_ops intel_hid_pl_pm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) .prepare = intel_hid_pm_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) .complete = intel_hid_pm_complete,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) .freeze = intel_hid_pl_suspend_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) .thaw = intel_hid_pl_resume_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) .restore = intel_hid_pl_resume_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) .suspend = intel_hid_pl_suspend_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) .resume = intel_hid_pl_resume_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) static int intel_hid_input_setup(struct platform_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) priv->input_dev = devm_input_allocate_device(&device->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) if (!priv->input_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) ret = sparse_keymap_setup(priv->input_dev, intel_hid_keymap, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) priv->input_dev->name = "Intel HID events";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) priv->input_dev->id.bustype = BUS_HOST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) return input_register_device(priv->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) static int intel_button_array_input_setup(struct platform_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) /* Setup input device for 5 button array */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) priv->array = devm_input_allocate_device(&device->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (!priv->array)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) ret = sparse_keymap_setup(priv->array, intel_array_keymap, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) priv->array->name = "Intel HID 5 button array";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) priv->array->id.bustype = BUS_HOST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) return input_register_device(priv->array);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) static void notify_handler(acpi_handle handle, u32 event, void *context)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) struct platform_device *device = context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) unsigned long long ev_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) if (priv->wakeup_mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) * Needed for wakeup from suspend-to-idle to work on some
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) * platforms that don't expose the 5-button array, but still
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) * send notifies with the power button event code to this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) * device object on power button actions while suspended.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) if (event == 0xce)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) goto wakeup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) /* Wake up on 5-button array events only. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) if (event == 0xc0 || !priv->array)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) if (!sparse_keymap_entry_from_scancode(priv->array, event)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) dev_info(&device->dev, "unknown event 0x%x\n", event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) wakeup:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) pm_wakeup_hard_event(&device->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) * Needed for suspend to work on some platforms that don't expose
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) * the 5-button array, but still send notifies with power button
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) * event code to this device object on power button actions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) * Report the power button press and release.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if (!priv->array) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) if (event == 0xce) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) input_report_key(priv->input_dev, KEY_POWER, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) input_sync(priv->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) if (event == 0xcf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) input_report_key(priv->input_dev, KEY_POWER, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) input_sync(priv->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) /* 0xC0 is for HID events, other values are for 5 button array */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) if (event != 0xc0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) if (!priv->array ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) !sparse_keymap_report_event(priv->array, event, 1, true))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) dev_dbg(&device->dev, "unknown event 0x%x\n", event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) if (!intel_hid_evaluate_method(handle, INTEL_HID_DSM_HDEM_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) &ev_index)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) dev_warn(&device->dev, "failed to get event index\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) if (!sparse_keymap_report_event(priv->input_dev, ev_index, 1, true))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) dev_dbg(&device->dev, "unknown event index 0x%llx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) ev_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) static bool button_array_present(struct platform_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) acpi_handle handle = ACPI_HANDLE(&device->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) unsigned long long event_cap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) if (intel_hid_evaluate_method(handle, INTEL_HID_DSM_HEBC_V2_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) &event_cap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) /* Check presence of 5 button array or v2 power button */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) if (event_cap & 0x60000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) if (intel_hid_evaluate_method(handle, INTEL_HID_DSM_HEBC_V1_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) &event_cap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) if (event_cap & 0x20000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) if (dmi_check_system(button_array_table))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) static int intel_hid_probe(struct platform_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) acpi_handle handle = ACPI_HANDLE(&device->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) unsigned long long mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) struct intel_hid_priv *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) intel_hid_init_dsm(handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) if (!intel_hid_evaluate_method(handle, INTEL_HID_DSM_HDMM_FN, &mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) dev_warn(&device->dev, "failed to read mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) if (mode != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) * This driver only implements "simple" mode. There appear
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) * to be no other modes, but we should be paranoid and check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) * for compatibility.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) dev_info(&device->dev, "platform is not in simple mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) priv = devm_kzalloc(&device->dev, sizeof(*priv), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) dev_set_drvdata(&device->dev, priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) err = intel_hid_input_setup(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) pr_err("Failed to setup Intel HID hotkeys\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) /* Setup 5 button array */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) if (button_array_present(device)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) dev_info(&device->dev, "platform supports 5 button array\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) err = intel_button_array_input_setup(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) pr_err("Failed to setup Intel 5 button array hotkeys\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) status = acpi_install_notify_handler(handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) ACPI_DEVICE_NOTIFY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) notify_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) if (ACPI_FAILURE(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) err = intel_hid_set_enable(&device->dev, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) goto err_remove_notify;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) if (priv->array) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) unsigned long long dummy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) intel_button_array_enable(&device->dev, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) /* Call button load method to enable HID power button */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) if (!intel_hid_evaluate_method(handle, INTEL_HID_DSM_BTNL_FN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) &dummy)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) dev_warn(&device->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) "failed to enable HID power button\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) device_init_wakeup(&device->dev, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) * In order for system wakeup to work, the EC GPE has to be marked as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) * a wakeup one, so do that here (this setting will persist, but it has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) * no effect until the wakeup mask is set for the EC GPE).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) acpi_ec_mark_gpe_for_wake();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) err_remove_notify:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) acpi_remove_notify_handler(handle, ACPI_DEVICE_NOTIFY, notify_handler);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) static int intel_hid_remove(struct platform_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) acpi_handle handle = ACPI_HANDLE(&device->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) device_init_wakeup(&device->dev, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) acpi_remove_notify_handler(handle, ACPI_DEVICE_NOTIFY, notify_handler);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) intel_hid_set_enable(&device->dev, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) intel_button_array_enable(&device->dev, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) * Even if we failed to shut off the event stream, we can still
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) * safely detach from the device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) static struct platform_driver intel_hid_pl_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) .name = "intel-hid",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) .acpi_match_table = intel_hid_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) .pm = &intel_hid_pl_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) .probe = intel_hid_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) .remove = intel_hid_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) * Unfortunately, some laptops provide a _HID="INT33D5" device with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) * _CID="PNP0C02". This causes the pnpacpi scan driver to claim the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) * ACPI node, so no platform device will be created. The pnpacpi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) * driver rejects this device in subsequent processing, so no physical
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) * node is created at all.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) * As a workaround until the ACPI core figures out how to handle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) * this corner case, manually ask the ACPI platform device code to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) * claim the ACPI node.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) static acpi_status __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) check_acpi_dev(acpi_handle handle, u32 lvl, void *context, void **rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) const struct acpi_device_id *ids = context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) struct acpi_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) if (acpi_bus_get_device(handle, &dev) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) return AE_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) if (acpi_match_device_ids(dev, ids) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) if (!IS_ERR_OR_NULL(acpi_create_platform_device(dev, NULL)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) dev_info(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) "intel-hid: created platform device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) return AE_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) static int __init intel_hid_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) ACPI_UINT32_MAX, check_acpi_dev, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) (void *)intel_hid_ids, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) return platform_driver_register(&intel_hid_pl_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) module_init(intel_hid_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) static void __exit intel_hid_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) platform_driver_unregister(&intel_hid_pl_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) module_exit(intel_hid_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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