^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) * MacBook (Pro) SPI keyboard and touchpad driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 2015-2018 Federico Lorenzi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2017-2018 Ronald Tschalär
^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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * The keyboard and touchpad controller on the MacBookAir6, MacBookPro12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * MacBook8 and newer can be driven either by USB or SPI. However the USB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * pins are only connected on the MacBookAir6 and 7 and the MacBookPro12.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * All others need this driver. The interface is selected using ACPI methods:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * * UIEN ("USB Interface Enable"): If invoked with argument 1, disables SPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * and enables USB. If invoked with argument 0, disables USB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * * UIST ("USB Interface Status"): Returns 1 if USB is enabled, 0 otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * * SIEN ("SPI Interface Enable"): If invoked with argument 1, disables USB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * and enables SPI. If invoked with argument 0, disables SPI.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * * SIST ("SPI Interface Status"): Returns 1 if SPI is enabled, 0 otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * * ISOL: Resets the four GPIO pins used for SPI. Intended to be invoked with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * argument 1, then once more with argument 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * UIEN and UIST are only provided on models where the USB pins are connected.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * SPI-based Protocol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * ------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * The device and driver exchange messages (struct message); each message is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * encapsulated in one or more packets (struct spi_packet). There are two types
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * of exchanges: reads, and writes. A read is signaled by a GPE, upon which one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * message can be read from the device. A write exchange consists of writing a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * command message, immediately reading a short status packet, and then, upon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * receiving a GPE, reading the response message. Write exchanges cannot be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * interleaved, i.e. a new write exchange must not be started till the previous
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * write exchange is complete. Whether a received message is part of a read or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * write exchange is indicated in the encapsulating packet's flags field.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * A single message may be too large to fit in a single packet (which has a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * fixed, 256-byte size). In that case it will be split over multiple,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * consecutive packets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #include <linux/crc16.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #include <linux/debugfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #include <linux/efi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #include <linux/input/mt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #include <linux/ktime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #include <linux/leds.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #include <linux/spi/spi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #include <linux/wait.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #include <asm/barrier.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define CREATE_TRACE_POINTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #include "applespi.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #include "applespi_trace.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define APPLESPI_PACKET_SIZE 256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define APPLESPI_STATUS_SIZE 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define PACKET_TYPE_READ 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define PACKET_TYPE_WRITE 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define PACKET_DEV_KEYB 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #define PACKET_DEV_TPAD 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define PACKET_DEV_INFO 0xd0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define MAX_ROLLOVER 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #define MAX_FINGERS 11
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #define MAX_FINGER_ORIENTATION 16384
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define MAX_PKTS_PER_MSG 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #define KBD_BL_LEVEL_MIN 32U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define KBD_BL_LEVEL_MAX 255U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define KBD_BL_LEVEL_SCALE 1000000U
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #define KBD_BL_LEVEL_ADJ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) ((KBD_BL_LEVEL_MAX - KBD_BL_LEVEL_MIN) * KBD_BL_LEVEL_SCALE / 255U)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define EFI_BL_LEVEL_NAME L"KeyboardBacklightLevel"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #define EFI_BL_LEVEL_GUID EFI_GUID(0xa076d2af, 0x9678, 0x4386, 0x8b, 0x58, 0x1f, 0xc8, 0xef, 0x04, 0x16, 0x19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) #define APPLE_FLAG_FKEY 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) #define SPI_RW_CHG_DELAY_US 100 /* from experimentation, in µs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #define SYNAPTICS_VENDOR_ID 0x06cb
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) static unsigned int fnmode = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) module_param(fnmode, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) MODULE_PARM_DESC(fnmode, "Mode of Fn key on Apple keyboards (0 = disabled, [1] = fkeyslast, 2 = fkeysfirst)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static unsigned int fnremap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) module_param(fnremap, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) MODULE_PARM_DESC(fnremap, "Remap Fn key ([0] = no-remap; 1 = left-ctrl, 2 = left-shift, 3 = left-alt, 4 = left-meta, 6 = right-shift, 7 = right-alt, 8 = right-meta)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static bool iso_layout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) module_param(iso_layout, bool, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) MODULE_PARM_DESC(iso_layout, "Enable/Disable hardcoded ISO-layout of the keyboard. ([0] = disabled, 1 = enabled)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static char touchpad_dimensions[40];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) module_param_string(touchpad_dimensions, touchpad_dimensions,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) sizeof(touchpad_dimensions), 0444);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) MODULE_PARM_DESC(touchpad_dimensions, "The pixel dimensions of the touchpad, as XxY+W+H .");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * struct keyboard_protocol - keyboard message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * message.type = 0x0110, message.length = 0x000a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * @unknown1: unknown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * @modifiers: bit-set of modifier/control keys pressed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) * @unknown2: unknown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * @keys_pressed: the (non-modifier) keys currently pressed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * @fn_pressed: whether the fn key is currently pressed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * @crc16: crc over the whole message struct (message header +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * this struct) minus this @crc16 field
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct keyboard_protocol {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) u8 unknown1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) u8 modifiers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) u8 unknown2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) u8 keys_pressed[MAX_ROLLOVER];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) u8 fn_pressed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) __le16 crc16;
^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) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) * struct tp_finger - single trackpad finger structure, le16-aligned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * @origin: zero when switching track finger
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * @abs_x: absolute x coordinate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) * @abs_y: absolute y coordinate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) * @rel_x: relative x coordinate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * @rel_y: relative y coordinate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * @tool_major: tool area, major axis
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) * @tool_minor: tool area, minor axis
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * @orientation: 16384 when point, else 15 bit angle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * @touch_major: touch area, major axis
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * @touch_minor: touch area, minor axis
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) * @unused: zeros
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * @pressure: pressure on forcetouch touchpad
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * @multi: one finger: varies, more fingers: constant
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) * @crc16: on last finger: crc over the whole message struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) * (i.e. message header + this struct) minus the last
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) * @crc16 field; unknown on all other fingers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) struct tp_finger {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) __le16 origin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) __le16 abs_x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) __le16 abs_y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) __le16 rel_x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) __le16 rel_y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) __le16 tool_major;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) __le16 tool_minor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) __le16 orientation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) __le16 touch_major;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) __le16 touch_minor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) __le16 unused[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) __le16 pressure;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) __le16 multi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) __le16 crc16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) * struct touchpad_protocol - touchpad message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) * message.type = 0x0210
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) * @unknown1: unknown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * @clicked: 1 if a button-click was detected, 0 otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * @unknown2: unknown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * @number_of_fingers: the number of fingers being reported in @fingers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) * @clicked2: same as @clicked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * @unknown3: unknown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * @fingers: the data for each finger
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) struct touchpad_protocol {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) u8 unknown1[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) u8 clicked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) u8 unknown2[28];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) u8 number_of_fingers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) u8 clicked2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) u8 unknown3[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) struct tp_finger fingers[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) * struct command_protocol_tp_info - get touchpad info.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * message.type = 0x1020, message.length = 0x0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * @crc16: crc over the whole message struct (message header +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * this struct) minus this @crc16 field
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) struct command_protocol_tp_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) __le16 crc16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) * struct touchpad_info - touchpad info response.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) * message.type = 0x1020, message.length = 0x006e
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * @unknown1: unknown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) * @model_flags: flags (vary by model number, but significance otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) * unknown)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * @model_no: the touchpad model number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * @unknown2: unknown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * @crc16: crc over the whole message struct (message header +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) * this struct) minus this @crc16 field
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct touchpad_info_protocol {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) u8 unknown1[105];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) u8 model_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) u8 model_no;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) u8 unknown2[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) __le16 crc16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) * struct command_protocol_mt_init - initialize multitouch.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) * message.type = 0x0252, message.length = 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) * @cmd: value: 0x0102
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) * @crc16: crc over the whole message struct (message header +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) * this struct) minus this @crc16 field
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) struct command_protocol_mt_init {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) __le16 cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) __le16 crc16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) * struct command_protocol_capsl - toggle caps-lock led
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) * message.type = 0x0151, message.length = 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) * @unknown: value: 0x01 (length?)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) * @led: 0 off, 2 on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) * @crc16: crc over the whole message struct (message header +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) * this struct) minus this @crc16 field
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) struct command_protocol_capsl {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) u8 unknown;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) u8 led;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) __le16 crc16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) * struct command_protocol_bl - set keyboard backlight brightness
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) * message.type = 0xB051, message.length = 0x0006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) * @const1: value: 0x01B0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) * @level: the brightness level to set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) * @const2: value: 0x0001 (backlight off), 0x01F4 (backlight on)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) * @crc16: crc over the whole message struct (message header +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * this struct) minus this @crc16 field
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) struct command_protocol_bl {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) __le16 const1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) __le16 level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) __le16 const2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) __le16 crc16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) };
^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) * struct message - a complete spi message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * Each message begins with fixed header, followed by a message-type specific
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * payload, and ends with a 16-bit crc. Because of the varying lengths of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * payload, the crc is defined at the end of each payload struct, rather than
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * in this struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) * @type: the message type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) * @zero: always 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * @counter: incremented on each message, rolls over after 255; there is a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) * separate counter for each message type.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) * @rsp_buf_len:response buffer length (the exact nature of this field is quite
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) * speculative). On a request/write this is often the same as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) * @length, though in some cases it has been seen to be much larger
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) * (e.g. 0x400); on a response/read this the same as on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) * request; for reads that are not responses it is 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) * @length: length of the remainder of the data in the whole message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) * structure (after re-assembly in case of being split over
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) * multiple spi-packets), minus the trailing crc. The total size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) * of the message struct is therefore @length + 10.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) struct message {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) __le16 type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) u8 zero;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) u8 counter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) __le16 rsp_buf_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) __le16 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) struct keyboard_protocol keyboard;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) struct touchpad_protocol touchpad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) struct touchpad_info_protocol tp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) struct command_protocol_tp_info tp_info_command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) struct command_protocol_mt_init init_mt_command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) struct command_protocol_capsl capsl_command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) struct command_protocol_bl bl_command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) u8 data[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)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) /* type + zero + counter + rsp_buf_len + length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) #define MSG_HEADER_SIZE 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) * struct spi_packet - a complete spi packet; always 256 bytes. This carries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) * the (parts of the) message in the data. But note that this does not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) * necessarily contain a complete message, as in some cases (e.g. many
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) * fingers pressed) the message is split over multiple packets (see the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) * @offset, @remaining, and @length fields). In general the data parts in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) * spi_packet's are concatenated until @remaining is 0, and the result is an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) * message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) * @flags: 0x40 = write (to device), 0x20 = read (from device); note that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) * the response to a write still has 0x40.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) * @device: 1 = keyboard, 2 = touchpad
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) * @offset: specifies the offset of this packet's data in the complete
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) * message; i.e. > 0 indicates this is a continuation packet (in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) * the second packet for a message split over multiple packets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) * this would then be the same as the @length in the first packet)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) * @remaining: number of message bytes remaining in subsequents packets (in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) * the first packet of a message split over two packets this would
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) * then be the same as the @length in the second packet)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) * @length: length of the valid data in the @data in this packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) * @data: all or part of a message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) * @crc16: crc over this whole structure minus this @crc16 field. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) * covers just this packet, even on multi-packet messages (in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) * contrast to the crc in the message).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) struct spi_packet {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) u8 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) u8 device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) __le16 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) __le16 remaining;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) __le16 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) u8 data[246];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) __le16 crc16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) struct spi_settings {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) u64 spi_cs_delay; /* cs-to-clk delay in us */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) u64 reset_a2r_usec; /* active-to-receive delay? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) u64 reset_rec_usec; /* ? (cur val: 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) /* this mimics struct drm_rect */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) struct applespi_tp_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) int x_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) int y_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) int x_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) int y_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) struct applespi_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) struct spi_device *spi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) struct spi_settings spi_settings;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct input_dev *keyboard_input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct input_dev *touchpad_input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) u8 *tx_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) u8 *tx_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) u8 *rx_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) u8 *msg_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) unsigned int saved_msg_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) struct applespi_tp_info tp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) u8 last_keys_pressed[MAX_ROLLOVER];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) u8 last_keys_fn_pressed[MAX_ROLLOVER];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) u8 last_fn_pressed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) struct input_mt_pos pos[MAX_FINGERS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) int slots[MAX_FINGERS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) int gpe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) acpi_handle sien;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) acpi_handle sist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) struct spi_transfer dl_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) struct spi_transfer rd_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) struct spi_message rd_m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) struct spi_transfer ww_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) struct spi_transfer wd_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) struct spi_transfer wr_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) struct spi_transfer st_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) struct spi_message wr_m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) bool want_tp_info_cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) bool want_mt_init_cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) bool want_cl_led_on;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) bool have_cl_led_on;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) unsigned int want_bl_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) unsigned int have_bl_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) unsigned int cmd_msg_cntr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) /* lock to protect the above parameters and flags below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) spinlock_t cmd_msg_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) ktime_t cmd_msg_queued;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) enum applespi_evt_type cmd_evt_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) struct led_classdev backlight_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) bool suspended;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) bool drain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) wait_queue_head_t drain_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) bool read_active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) bool write_active;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) struct work_struct work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) struct touchpad_info_protocol rcvd_tp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) struct dentry *debugfs_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) bool debug_tp_dim;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) char tp_dim_val[40];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) int tp_dim_min_x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) int tp_dim_max_x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) int tp_dim_min_y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) int tp_dim_max_y;
^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 const unsigned char applespi_scancodes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 0, 0, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) KEY_K, KEY_L, KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) KEY_U, KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) KEY_ENTER, KEY_ESC, KEY_BACKSPACE, KEY_TAB, KEY_SPACE, KEY_MINUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) KEY_EQUAL, KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) KEY_SEMICOLON, KEY_APOSTROPHE, KEY_GRAVE, KEY_COMMA, KEY_DOT, KEY_SLASH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) KEY_CAPSLOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8, KEY_F9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) KEY_F10, KEY_F11, KEY_F12, 0, 0, 0, 0, 0, 0, 0, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) KEY_RIGHT, KEY_LEFT, KEY_DOWN, KEY_UP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_102ND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RO, 0, KEY_YEN, 0, 0, 0, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 0, KEY_KATAKANAHIRAGANA, KEY_MUHENKAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) * This must have exactly as many entries as there are bits in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) * struct keyboard_protocol.modifiers .
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) static const unsigned char applespi_controlcodes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) KEY_LEFTCTRL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) KEY_LEFTSHIFT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) KEY_LEFTALT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) KEY_LEFTMETA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) KEY_RIGHTSHIFT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) KEY_RIGHTALT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) KEY_RIGHTMETA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) struct applespi_key_translation {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) u16 from;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) u16 to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) u8 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) static const struct applespi_key_translation applespi_fn_codes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) { KEY_BACKSPACE, KEY_DELETE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) { KEY_ENTER, KEY_INSERT },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) { KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) { KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) { KEY_F3, KEY_SCALE, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) { KEY_F4, KEY_DASHBOARD, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) { KEY_F5, KEY_KBDILLUMDOWN, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) { KEY_F6, KEY_KBDILLUMUP, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) { KEY_F7, KEY_PREVIOUSSONG, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) { KEY_F8, KEY_PLAYPAUSE, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) { KEY_F9, KEY_NEXTSONG, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) { KEY_F10, KEY_MUTE, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) { KEY_F11, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) { KEY_F12, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) { KEY_RIGHT, KEY_END },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) { KEY_LEFT, KEY_HOME },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) { KEY_DOWN, KEY_PAGEDOWN },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) { KEY_UP, KEY_PAGEUP },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) static const struct applespi_key_translation apple_iso_keyboard[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) { KEY_GRAVE, KEY_102ND },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) { KEY_102ND, KEY_GRAVE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) { }
^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) struct applespi_tp_model_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) u16 model;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) struct applespi_tp_info tp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) static const struct applespi_tp_model_info applespi_tp_models[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) .model = 0x04, /* MB8 MB9 MB10 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) .tp_info = { -5087, -182, 5579, 6089 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) .model = 0x05, /* MBP13,1 MBP13,2 MBP14,1 MBP14,2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) .tp_info = { -6243, -170, 6749, 7685 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) .model = 0x06, /* MBP13,3 MBP14,3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) .tp_info = { -7456, -163, 7976, 9283 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) typedef void (*applespi_trace_fun)(enum applespi_evt_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) enum applespi_pkt_type, u8 *, size_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) static applespi_trace_fun applespi_get_trace_fun(enum applespi_evt_type type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) case ET_CMD_TP_INI:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) return trace_applespi_tp_ini_cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) case ET_CMD_BL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) return trace_applespi_backlight_cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) case ET_CMD_CL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) return trace_applespi_caps_lock_cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) case ET_RD_KEYB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) return trace_applespi_keyboard_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) case ET_RD_TPAD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) return trace_applespi_touchpad_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) case ET_RD_UNKN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) return trace_applespi_unknown_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) WARN_ONCE(1, "Unknown msg type %d", type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) return trace_applespi_unknown_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) static void applespi_setup_read_txfrs(struct applespi_data *applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) struct spi_message *msg = &applespi->rd_m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) struct spi_transfer *dl_t = &applespi->dl_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) struct spi_transfer *rd_t = &applespi->rd_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) memset(dl_t, 0, sizeof(*dl_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) memset(rd_t, 0, sizeof(*rd_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) dl_t->delay_usecs = applespi->spi_settings.spi_cs_delay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) rd_t->rx_buf = applespi->rx_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) rd_t->len = APPLESPI_PACKET_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) spi_message_init(msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) spi_message_add_tail(dl_t, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) spi_message_add_tail(rd_t, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) static void applespi_setup_write_txfrs(struct applespi_data *applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) struct spi_message *msg = &applespi->wr_m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) struct spi_transfer *wt_t = &applespi->ww_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) struct spi_transfer *dl_t = &applespi->wd_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) struct spi_transfer *wr_t = &applespi->wr_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) struct spi_transfer *st_t = &applespi->st_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) memset(wt_t, 0, sizeof(*wt_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) memset(dl_t, 0, sizeof(*dl_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) memset(wr_t, 0, sizeof(*wr_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) memset(st_t, 0, sizeof(*st_t));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) * All we need here is a delay at the beginning of the message before
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) * asserting cs. But the current spi API doesn't support this, so we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) * end up with an extra unnecessary (but harmless) cs assertion and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) * deassertion.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) wt_t->delay_usecs = SPI_RW_CHG_DELAY_US;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) wt_t->cs_change = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) dl_t->delay_usecs = applespi->spi_settings.spi_cs_delay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) wr_t->tx_buf = applespi->tx_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) wr_t->len = APPLESPI_PACKET_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) wr_t->delay_usecs = SPI_RW_CHG_DELAY_US;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) st_t->rx_buf = applespi->tx_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) st_t->len = APPLESPI_STATUS_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) spi_message_init(msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) spi_message_add_tail(wt_t, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) spi_message_add_tail(dl_t, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) spi_message_add_tail(wr_t, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) spi_message_add_tail(st_t, msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) static int applespi_async(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) struct spi_message *message, void (*complete)(void *))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) message->complete = complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) message->context = applespi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) return spi_async(applespi->spi, message);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) static inline bool applespi_check_write_status(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) int sts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) static u8 status_ok[] = { 0xac, 0x27, 0x68, 0xd5 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) if (sts < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) dev_warn(&applespi->spi->dev, "Error writing to device: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) if (memcmp(applespi->tx_status, status_ok, APPLESPI_STATUS_SIZE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) dev_warn(&applespi->spi->dev, "Error writing to device: %*ph\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) APPLESPI_STATUS_SIZE, applespi->tx_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) static int applespi_get_spi_settings(struct applespi_data *applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) struct acpi_device *adev = ACPI_COMPANION(&applespi->spi->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) const union acpi_object *o;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) struct spi_settings *settings = &applespi->spi_settings;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) if (!acpi_dev_get_property(adev, "spiCSDelay", ACPI_TYPE_BUFFER, &o))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) settings->spi_cs_delay = *(u64 *)o->buffer.pointer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) "Property spiCSDelay not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) if (!acpi_dev_get_property(adev, "resetA2RUsec", ACPI_TYPE_BUFFER, &o))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) settings->reset_a2r_usec = *(u64 *)o->buffer.pointer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) "Property resetA2RUsec not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) if (!acpi_dev_get_property(adev, "resetRecUsec", ACPI_TYPE_BUFFER, &o))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) settings->reset_rec_usec = *(u64 *)o->buffer.pointer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) "Property resetRecUsec not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) dev_dbg(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) "SPI settings: spi_cs_delay=%llu reset_a2r_usec=%llu reset_rec_usec=%llu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) settings->spi_cs_delay, settings->reset_a2r_usec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) settings->reset_rec_usec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) static int applespi_setup_spi(struct applespi_data *applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) int sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) sts = applespi_get_spi_settings(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) if (sts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) return sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) spin_lock_init(&applespi->cmd_msg_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) init_waitqueue_head(&applespi->drain_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) static int applespi_enable_spi(struct applespi_data *applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) acpi_status acpi_sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) unsigned long long spi_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) /* check if SPI is already enabled, so we can skip the delay below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) acpi_sts = acpi_evaluate_integer(applespi->sist, NULL, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) &spi_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) if (ACPI_SUCCESS(acpi_sts) && spi_status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) /* SIEN(1) will enable SPI communication */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) acpi_sts = acpi_execute_simple_method(applespi->sien, NULL, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) if (ACPI_FAILURE(acpi_sts)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) dev_err(&applespi->spi->dev, "SIEN failed: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) acpi_format_exception(acpi_sts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) * Allow the SPI interface to come up before returning. Without this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) * delay, the SPI commands to enable multitouch mode may not reach
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) * the trackpad controller, causing pointer movement to break upon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) * resume from sleep.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) msleep(50);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) static int applespi_send_cmd_msg(struct applespi_data *applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) static void applespi_msg_complete(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) bool is_write_msg, bool is_read_compl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) if (is_read_compl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) applespi->read_active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) if (is_write_msg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) applespi->write_active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) if (applespi->drain && !applespi->write_active)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) wake_up_all(&applespi->drain_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) if (is_write_msg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) applespi->cmd_msg_queued = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) applespi_send_cmd_msg(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) static void applespi_async_write_complete(void *context)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) struct applespi_data *applespi = context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) enum applespi_evt_type evt_type = applespi->cmd_evt_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) applespi_get_trace_fun(evt_type)(evt_type, PT_WRITE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) applespi->tx_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) APPLESPI_PACKET_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) applespi_get_trace_fun(evt_type)(evt_type, PT_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) applespi->tx_status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) APPLESPI_STATUS_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) if (!applespi_check_write_status(applespi, applespi->wr_m.status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) * If we got an error, we presumably won't get the expected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) * response message either.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) applespi_msg_complete(applespi, true, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) static int applespi_send_cmd_msg(struct applespi_data *applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) u16 crc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) int sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) struct spi_packet *packet = (struct spi_packet *)applespi->tx_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) struct message *message = (struct message *)packet->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) u16 msg_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) u8 device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) /* check if draining */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) if (applespi->drain)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) /* check whether send is in progress */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) if (applespi->cmd_msg_queued) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) if (ktime_ms_delta(ktime_get(), applespi->cmd_msg_queued) < 1000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) dev_warn(&applespi->spi->dev, "Command %d timed out\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) applespi->cmd_evt_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) applespi->cmd_msg_queued = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) applespi->write_active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) /* set up packet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) memset(packet, 0, APPLESPI_PACKET_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) /* are we processing init commands? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) if (applespi->want_tp_info_cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) applespi->want_tp_info_cmd = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) applespi->want_mt_init_cmd = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) applespi->cmd_evt_type = ET_CMD_TP_INI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) /* build init command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) device = PACKET_DEV_INFO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) message->type = cpu_to_le16(0x1020);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) msg_len = sizeof(message->tp_info_command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) message->zero = 0x02;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) message->rsp_buf_len = cpu_to_le16(0x0200);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) } else if (applespi->want_mt_init_cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) applespi->want_mt_init_cmd = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) applespi->cmd_evt_type = ET_CMD_TP_INI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) /* build init command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) device = PACKET_DEV_TPAD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) message->type = cpu_to_le16(0x0252);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) msg_len = sizeof(message->init_mt_command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) message->init_mt_command.cmd = cpu_to_le16(0x0102);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) /* do we need caps-lock command? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) } else if (applespi->want_cl_led_on != applespi->have_cl_led_on) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) applespi->have_cl_led_on = applespi->want_cl_led_on;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) applespi->cmd_evt_type = ET_CMD_CL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) /* build led command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) device = PACKET_DEV_KEYB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) message->type = cpu_to_le16(0x0151);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) msg_len = sizeof(message->capsl_command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) message->capsl_command.unknown = 0x01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) message->capsl_command.led = applespi->have_cl_led_on ? 2 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) /* do we need backlight command? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) } else if (applespi->want_bl_level != applespi->have_bl_level) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) applespi->have_bl_level = applespi->want_bl_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) applespi->cmd_evt_type = ET_CMD_BL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) /* build command buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) device = PACKET_DEV_KEYB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) message->type = cpu_to_le16(0xB051);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) msg_len = sizeof(message->bl_command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) message->bl_command.const1 = cpu_to_le16(0x01B0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) message->bl_command.level =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) cpu_to_le16(applespi->have_bl_level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) if (applespi->have_bl_level > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) message->bl_command.const2 = cpu_to_le16(0x01F4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) message->bl_command.const2 = cpu_to_le16(0x0001);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) /* everything's up-to-date */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) /* finalize packet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) packet->flags = PACKET_TYPE_WRITE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) packet->device = device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) packet->length = cpu_to_le16(MSG_HEADER_SIZE + msg_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) message->counter = applespi->cmd_msg_cntr++ % (U8_MAX + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) message->length = cpu_to_le16(msg_len - 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) if (!message->rsp_buf_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) message->rsp_buf_len = message->length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) crc = crc16(0, (u8 *)message, le16_to_cpu(packet->length) - 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) put_unaligned_le16(crc, &message->data[msg_len - 2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) crc = crc16(0, (u8 *)packet, sizeof(*packet) - 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) packet->crc16 = cpu_to_le16(crc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) /* send command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) sts = applespi_async(applespi, &applespi->wr_m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) applespi_async_write_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) if (sts) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) "Error queueing async write to device: %d\n", sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) return sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) applespi->cmd_msg_queued = ktime_get_coarse();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) applespi->write_active = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) static void applespi_init(struct applespi_data *applespi, bool is_resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) if (is_resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) applespi->want_mt_init_cmd = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) applespi->want_tp_info_cmd = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) applespi_send_cmd_msg(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) static int applespi_set_capsl_led(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) bool capslock_on)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) int sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) applespi->want_cl_led_on = capslock_on;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) sts = applespi_send_cmd_msg(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) return sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) static void applespi_set_bl_level(struct led_classdev *led_cdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) enum led_brightness value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) struct applespi_data *applespi =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) container_of(led_cdev, struct applespi_data, backlight_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) if (value == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) applespi->want_bl_level = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) * The backlight does not turn on till level 32, so we scale
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) * the range here so that from a user's perspective it turns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) * on at 1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) applespi->want_bl_level =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) ((value * KBD_BL_LEVEL_ADJ) / KBD_BL_LEVEL_SCALE +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) KBD_BL_LEVEL_MIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) applespi_send_cmd_msg(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) static int applespi_event(struct input_dev *dev, unsigned int type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) unsigned int code, int value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) struct applespi_data *applespi = input_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) case EV_LED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) applespi_set_capsl_led(applespi, !!test_bit(LED_CAPSL, dev->led));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) /* lifted from the BCM5974 driver and renamed from raw2int */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) /* convert 16-bit little endian to signed integer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) static inline int le16_to_int(__le16 x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) return (signed short)le16_to_cpu(x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) static void applespi_debug_update_dimensions(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) const struct tp_finger *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) applespi->tp_dim_min_x = min(applespi->tp_dim_min_x,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) le16_to_int(f->abs_x));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) applespi->tp_dim_max_x = max(applespi->tp_dim_max_x,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) le16_to_int(f->abs_x));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) applespi->tp_dim_min_y = min(applespi->tp_dim_min_y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) le16_to_int(f->abs_y));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) applespi->tp_dim_max_y = max(applespi->tp_dim_max_y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) le16_to_int(f->abs_y));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) static int applespi_tp_dim_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) struct applespi_data *applespi = inode->i_private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) file->private_data = applespi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) snprintf(applespi->tp_dim_val, sizeof(applespi->tp_dim_val),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) "0x%.4x %dx%d+%u+%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) applespi->touchpad_input_dev->id.product,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) applespi->tp_dim_min_x, applespi->tp_dim_min_y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) applespi->tp_dim_max_x - applespi->tp_dim_min_x,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) applespi->tp_dim_max_y - applespi->tp_dim_min_y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) return nonseekable_open(inode, file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) static ssize_t applespi_tp_dim_read(struct file *file, char __user *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) size_t len, loff_t *off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) struct applespi_data *applespi = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) return simple_read_from_buffer(buf, len, off, applespi->tp_dim_val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) strlen(applespi->tp_dim_val));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) static const struct file_operations applespi_tp_dim_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) .open = applespi_tp_dim_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) .read = applespi_tp_dim_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) .llseek = no_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) static void report_finger_data(struct input_dev *input, int slot,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) const struct input_mt_pos *pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) const struct tp_finger *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) input_mt_slot(input, slot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) input_report_abs(input, ABS_MT_TOUCH_MAJOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) le16_to_int(f->touch_major) << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) input_report_abs(input, ABS_MT_TOUCH_MINOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) le16_to_int(f->touch_minor) << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) input_report_abs(input, ABS_MT_WIDTH_MAJOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) le16_to_int(f->tool_major) << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) input_report_abs(input, ABS_MT_WIDTH_MINOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) le16_to_int(f->tool_minor) << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) input_report_abs(input, ABS_MT_ORIENTATION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) MAX_FINGER_ORIENTATION - le16_to_int(f->orientation));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) input_report_abs(input, ABS_MT_POSITION_X, pos->x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) input_report_abs(input, ABS_MT_POSITION_Y, pos->y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) static void report_tp_state(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) struct touchpad_protocol *t)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) const struct tp_finger *f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) const struct applespi_tp_info *tp_info = &applespi->tp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) int i, n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) /* touchpad_input_dev is set async in worker */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) input = smp_load_acquire(&applespi->touchpad_input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) if (!input)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) return; /* touchpad isn't initialized yet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) n = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) for (i = 0; i < t->number_of_fingers; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) f = &t->fingers[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) if (le16_to_int(f->touch_major) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) applespi->pos[n].x = le16_to_int(f->abs_x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) applespi->pos[n].y = tp_info->y_min + tp_info->y_max -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) le16_to_int(f->abs_y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) n++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) if (applespi->debug_tp_dim)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) applespi_debug_update_dimensions(applespi, f);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) input_mt_assign_slots(input, applespi->slots, applespi->pos, n, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) for (i = 0; i < n; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) report_finger_data(input, applespi->slots[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) &applespi->pos[i], &t->fingers[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) input_mt_sync_frame(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) input_report_key(input, BTN_LEFT, t->clicked);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) input_sync(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) static const struct applespi_key_translation *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) applespi_find_translation(const struct applespi_key_translation *table, u16 key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) const struct applespi_key_translation *trans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) for (trans = table; trans->from; trans++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) if (trans->from == key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) return trans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) static unsigned int applespi_translate_fn_key(unsigned int key, int fn_pressed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) const struct applespi_key_translation *trans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) int do_translate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) trans = applespi_find_translation(applespi_fn_codes, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) if (trans) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) if (trans->flags & APPLE_FLAG_FKEY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) do_translate = (fnmode == 2 && fn_pressed) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) (fnmode == 1 && !fn_pressed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) do_translate = fn_pressed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) if (do_translate)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) key = trans->to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) return key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) static unsigned int applespi_translate_iso_layout(unsigned int key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) const struct applespi_key_translation *trans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) trans = applespi_find_translation(apple_iso_keyboard, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) if (trans)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) key = trans->to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) return key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) static unsigned int applespi_code_to_key(u8 code, int fn_pressed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) unsigned int key = applespi_scancodes[code];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) if (fnmode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) key = applespi_translate_fn_key(key, fn_pressed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) if (iso_layout)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) key = applespi_translate_iso_layout(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) return key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) applespi_remap_fn_key(struct keyboard_protocol *keyboard_protocol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) unsigned char tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) u8 bit = BIT((fnremap - 1) & 0x07);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) if (!fnremap || fnremap > ARRAY_SIZE(applespi_controlcodes) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) !applespi_controlcodes[fnremap - 1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) tmp = keyboard_protocol->fn_pressed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) keyboard_protocol->fn_pressed = !!(keyboard_protocol->modifiers & bit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) if (tmp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) keyboard_protocol->modifiers |= bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) keyboard_protocol->modifiers &= ~bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) applespi_handle_keyboard_event(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) struct keyboard_protocol *keyboard_protocol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) unsigned int key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) compiletime_assert(ARRAY_SIZE(applespi_controlcodes) ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) sizeof_field(struct keyboard_protocol, modifiers) * 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) "applespi_controlcodes has wrong number of entries");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) /* check for rollover overflow, which is signalled by all keys == 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) if (!memchr_inv(keyboard_protocol->keys_pressed, 1, MAX_ROLLOVER))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) /* remap fn key if desired */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) applespi_remap_fn_key(keyboard_protocol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) /* check released keys */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) for (i = 0; i < MAX_ROLLOVER; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) if (memchr(keyboard_protocol->keys_pressed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) applespi->last_keys_pressed[i], MAX_ROLLOVER))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) continue; /* key is still pressed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) key = applespi_code_to_key(applespi->last_keys_pressed[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) applespi->last_keys_fn_pressed[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) input_report_key(applespi->keyboard_input_dev, key, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) applespi->last_keys_fn_pressed[i] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) /* check pressed keys */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) for (i = 0; i < MAX_ROLLOVER; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) if (keyboard_protocol->keys_pressed[i] <
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) ARRAY_SIZE(applespi_scancodes) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) keyboard_protocol->keys_pressed[i] > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) key = applespi_code_to_key(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) keyboard_protocol->keys_pressed[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) keyboard_protocol->fn_pressed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) input_report_key(applespi->keyboard_input_dev, key, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) applespi->last_keys_fn_pressed[i] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) keyboard_protocol->fn_pressed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) /* check control keys */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) for (i = 0; i < ARRAY_SIZE(applespi_controlcodes); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) if (keyboard_protocol->modifiers & BIT(i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) input_report_key(applespi->keyboard_input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) applespi_controlcodes[i], 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) input_report_key(applespi->keyboard_input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) applespi_controlcodes[i], 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) /* check function key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) if (keyboard_protocol->fn_pressed && !applespi->last_fn_pressed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) input_report_key(applespi->keyboard_input_dev, KEY_FN, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) else if (!keyboard_protocol->fn_pressed && applespi->last_fn_pressed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) input_report_key(applespi->keyboard_input_dev, KEY_FN, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) applespi->last_fn_pressed = keyboard_protocol->fn_pressed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) /* done */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) input_sync(applespi->keyboard_input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) memcpy(&applespi->last_keys_pressed, keyboard_protocol->keys_pressed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) sizeof(applespi->last_keys_pressed));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) static const struct applespi_tp_info *applespi_find_touchpad_info(u8 model)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) const struct applespi_tp_model_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) for (info = applespi_tp_models; info->model; info++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) if (info->model == model)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) return &info->tp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) applespi_register_touchpad_device(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) struct touchpad_info_protocol *rcvd_tp_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) const struct applespi_tp_info *tp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) struct input_dev *touchpad_input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) int sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) /* set up touchpad dimensions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) tp_info = applespi_find_touchpad_info(rcvd_tp_info->model_no);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) if (!tp_info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) "Unknown touchpad model %x - falling back to MB8 touchpad\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) rcvd_tp_info->model_no);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) tp_info = &applespi_tp_models[0].tp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) applespi->tp_info = *tp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) if (touchpad_dimensions[0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) int x, y, w, h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) sts = sscanf(touchpad_dimensions, "%dx%d+%u+%u", &x, &y, &w, &h);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) if (sts == 4) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) dev_info(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) "Overriding touchpad dimensions from module param\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) applespi->tp_info.x_min = x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) applespi->tp_info.y_min = y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) applespi->tp_info.x_max = x + w;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) applespi->tp_info.y_max = y + h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) "Invalid touchpad dimensions '%s': must be in the form XxY+W+H\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243) touchpad_dimensions);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) touchpad_dimensions[0] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) if (!touchpad_dimensions[0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) snprintf(touchpad_dimensions, sizeof(touchpad_dimensions),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) "%dx%d+%u+%u",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) applespi->tp_info.x_min,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) applespi->tp_info.y_min,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) applespi->tp_info.x_max - applespi->tp_info.x_min,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) applespi->tp_info.y_max - applespi->tp_info.y_min);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) /* create touchpad input device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) touchpad_input_dev = devm_input_allocate_device(&applespi->spi->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) if (!touchpad_input_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) "Failed to allocate touchpad input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) touchpad_input_dev->name = "Apple SPI Touchpad";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) touchpad_input_dev->phys = "applespi/input1";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) touchpad_input_dev->dev.parent = &applespi->spi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267) touchpad_input_dev->id.bustype = BUS_SPI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) touchpad_input_dev->id.vendor = SYNAPTICS_VENDOR_ID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) touchpad_input_dev->id.product =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) rcvd_tp_info->model_no << 8 | rcvd_tp_info->model_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) /* basic properties */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) input_set_capability(touchpad_input_dev, EV_REL, REL_X);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) input_set_capability(touchpad_input_dev, EV_REL, REL_Y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276) __set_bit(INPUT_PROP_POINTER, touchpad_input_dev->propbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) __set_bit(INPUT_PROP_BUTTONPAD, touchpad_input_dev->propbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) /* finger touch area */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) input_set_abs_params(touchpad_input_dev, ABS_MT_TOUCH_MAJOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) 0, 5000, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) input_set_abs_params(touchpad_input_dev, ABS_MT_TOUCH_MINOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) 0, 5000, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) /* finger approach area */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) input_set_abs_params(touchpad_input_dev, ABS_MT_WIDTH_MAJOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) 0, 5000, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) input_set_abs_params(touchpad_input_dev, ABS_MT_WIDTH_MINOR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) 0, 5000, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) /* finger orientation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) input_set_abs_params(touchpad_input_dev, ABS_MT_ORIENTATION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) -MAX_FINGER_ORIENTATION, MAX_FINGER_ORIENTATION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) /* finger position */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) input_set_abs_params(touchpad_input_dev, ABS_MT_POSITION_X,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298) applespi->tp_info.x_min, applespi->tp_info.x_max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) input_set_abs_params(touchpad_input_dev, ABS_MT_POSITION_Y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) applespi->tp_info.y_min, applespi->tp_info.y_max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) /* touchpad button */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) input_set_capability(touchpad_input_dev, EV_KEY, BTN_LEFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) /* multitouch */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) sts = input_mt_init_slots(touchpad_input_dev, MAX_FINGERS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) INPUT_MT_TRACK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311) if (sts) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) "failed to initialize slots: %d", sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) return sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) /* register input device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) sts = input_register_device(touchpad_input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) if (sts) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) "Unable to register touchpad input device (%d)\n", sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) return sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325) /* touchpad_input_dev is read async in spi callback */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) smp_store_release(&applespi->touchpad_input_dev, touchpad_input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) static void applespi_worker(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) struct applespi_data *applespi =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) container_of(work, struct applespi_data, work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) applespi_register_touchpad_device(applespi, &applespi->rcvd_tp_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) static void applespi_handle_cmd_response(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) struct spi_packet *packet,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) struct message *message)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343) if (packet->device == PACKET_DEV_INFO &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) le16_to_cpu(message->type) == 0x1020) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) * We're not allowed to sleep here, but registering an input
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) * device can sleep.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) applespi->rcvd_tp_info = message->tp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) schedule_work(&applespi->work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) if (le16_to_cpu(message->length) != 0x0000) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355) dev_warn_ratelimited(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) "Received unexpected write response: length=%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) le16_to_cpu(message->length));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) if (packet->device == PACKET_DEV_TPAD &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) le16_to_cpu(message->type) == 0x0252 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) le16_to_cpu(message->rsp_buf_len) == 0x0002)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) dev_info(&applespi->spi->dev, "modeswitch done.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) static bool applespi_verify_crc(struct applespi_data *applespi, u8 *buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) size_t buflen)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370) u16 crc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) crc = crc16(0, buffer, buflen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373) if (crc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) dev_warn_ratelimited(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) "Received corrupted packet (crc mismatch)\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) trace_applespi_bad_crc(ET_RD_CRC, READ, buffer, buflen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) static void applespi_debug_print_read_packet(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) struct spi_packet *packet)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) unsigned int evt_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389) if (packet->flags == PACKET_TYPE_READ &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) packet->device == PACKET_DEV_KEYB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) evt_type = ET_RD_KEYB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) else if (packet->flags == PACKET_TYPE_READ &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) packet->device == PACKET_DEV_TPAD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) evt_type = ET_RD_TPAD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) else if (packet->flags == PACKET_TYPE_WRITE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) evt_type = applespi->cmd_evt_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) evt_type = ET_RD_UNKN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400) applespi_get_trace_fun(evt_type)(evt_type, PT_READ, applespi->rx_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) APPLESPI_PACKET_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) static void applespi_got_data(struct applespi_data *applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406) struct spi_packet *packet;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) struct message *message;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) unsigned int msg_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) unsigned int off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) unsigned int rem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) unsigned int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) /* process packet header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) if (!applespi_verify_crc(applespi, applespi->rx_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) APPLESPI_PACKET_SIZE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420) if (applespi->drain) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) applespi->read_active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) applespi->write_active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) wake_up_all(&applespi->drain_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) packet = (struct spi_packet *)applespi->rx_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) applespi_debug_print_read_packet(applespi, packet);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436) off = le16_to_cpu(packet->offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) rem = le16_to_cpu(packet->remaining);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) len = le16_to_cpu(packet->length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) if (len > sizeof(packet->data)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441) dev_warn_ratelimited(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) "Received corrupted packet (invalid packet length %u)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) goto msg_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) /* handle multi-packet messages */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) if (rem > 0 || off > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) if (off != applespi->saved_msg_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) dev_warn_ratelimited(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) "Received unexpected offset (got %u, expected %u)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452) off, applespi->saved_msg_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453) goto msg_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) if (off + rem > MAX_PKTS_PER_MSG * APPLESPI_PACKET_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457) dev_warn_ratelimited(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) "Received message too large (size %u)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) off + rem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460) goto msg_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463) if (off + len > MAX_PKTS_PER_MSG * APPLESPI_PACKET_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) dev_warn_ratelimited(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) "Received message too large (size %u)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) off + len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) goto msg_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470) memcpy(applespi->msg_buf + off, &packet->data, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) applespi->saved_msg_len += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) if (rem > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) message = (struct message *)applespi->msg_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) msg_len = applespi->saved_msg_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) message = (struct message *)&packet->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) msg_len = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483) /* got complete message - verify */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) if (!applespi_verify_crc(applespi, (u8 *)message, msg_len))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) goto msg_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) if (le16_to_cpu(message->length) != msg_len - MSG_HEADER_SIZE - 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) dev_warn_ratelimited(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) "Received corrupted packet (invalid message length %u - expected %u)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490) le16_to_cpu(message->length),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) msg_len - MSG_HEADER_SIZE - 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) goto msg_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) /* handle message */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496) if (packet->flags == PACKET_TYPE_READ &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) packet->device == PACKET_DEV_KEYB) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498) applespi_handle_keyboard_event(applespi, &message->keyboard);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) } else if (packet->flags == PACKET_TYPE_READ &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) packet->device == PACKET_DEV_TPAD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502) struct touchpad_protocol *tp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) size_t tp_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) tp = &message->touchpad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) tp_len = struct_size(tp, fingers, tp->number_of_fingers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508) if (le16_to_cpu(message->length) + 2 != tp_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) dev_warn_ratelimited(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) "Received corrupted packet (invalid message length %u - num-fingers %u, tp-len %zu)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511) le16_to_cpu(message->length),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) tp->number_of_fingers, tp_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) goto msg_complete;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) if (tp->number_of_fingers > MAX_FINGERS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) dev_warn_ratelimited(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518) "Number of reported fingers (%u) exceeds max (%u))\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) tp->number_of_fingers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) MAX_FINGERS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521) tp->number_of_fingers = MAX_FINGERS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) report_tp_state(applespi, tp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) } else if (packet->flags == PACKET_TYPE_WRITE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) applespi_handle_cmd_response(applespi, packet, message);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) msg_complete:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) applespi->saved_msg_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533) applespi_msg_complete(applespi, packet->flags == PACKET_TYPE_WRITE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) static void applespi_async_read_complete(void *context)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) struct applespi_data *applespi = context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) if (applespi->rd_m.status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) dev_warn(&applespi->spi->dev, "Error reading from device: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543) applespi->rd_m.status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) * We don't actually know if this was a pure read, or a response
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546) * to a write. But this is a rare error condition that should
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547) * never occur, so clearing both flags to avoid deadlock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) applespi_msg_complete(applespi, true, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551) applespi_got_data(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554) acpi_finish_gpe(NULL, applespi->gpe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557) static u32 applespi_notify(acpi_handle gpe_device, u32 gpe, void *context)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) struct applespi_data *applespi = context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) int sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) trace_applespi_irq_received(ET_RD_IRQ, PT_READ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) if (!applespi->suspended) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) sts = applespi_async(applespi, &applespi->rd_m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569) applespi_async_read_complete);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) if (sts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572) "Error queueing async read to device: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) applespi->read_active = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) return ACPI_INTERRUPT_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) static int applespi_get_saved_bl_level(struct applespi_data *applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585) struct efivar_entry *efivar_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586) u16 efi_data = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) unsigned long efi_data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588) int sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590) efivar_entry = kmalloc(sizeof(*efivar_entry), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) if (!efivar_entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594) memcpy(efivar_entry->var.VariableName, EFI_BL_LEVEL_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) sizeof(EFI_BL_LEVEL_NAME));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) efivar_entry->var.VendorGuid = EFI_BL_LEVEL_GUID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597) efi_data_len = sizeof(efi_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) sts = efivar_entry_get(efivar_entry, NULL, &efi_data_len, &efi_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600) if (sts && sts != -ENOENT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) "Error getting backlight level from EFI vars: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603) sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605) kfree(efivar_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) return sts ? sts : efi_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) static void applespi_save_bl_level(struct applespi_data *applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611) unsigned int level)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) efi_guid_t efi_guid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614) u32 efi_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) unsigned long efi_data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616) u16 efi_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) int sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) /* Save keyboard backlight level */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620) efi_guid = EFI_BL_LEVEL_GUID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621) efi_data = (u16)level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) efi_data_len = sizeof(efi_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) efi_attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624) EFI_VARIABLE_RUNTIME_ACCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626) sts = efivar_entry_set_safe((efi_char16_t *)EFI_BL_LEVEL_NAME, efi_guid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627) efi_attr, true, efi_data_len, &efi_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) if (sts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630) "Error saving backlight level to EFI vars: %d\n", sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633) static int applespi_probe(struct spi_device *spi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) struct applespi_data *applespi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636) acpi_handle spi_handle = ACPI_HANDLE(&spi->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) acpi_status acpi_sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638) int sts, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639) unsigned long long gpe, usb_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) /* check if the USB interface is present and enabled already */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642) acpi_sts = acpi_evaluate_integer(spi_handle, "UIST", NULL, &usb_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643) if (ACPI_SUCCESS(acpi_sts) && usb_status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) /* let the USB driver take over instead */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645) dev_info(&spi->dev, "USB interface already enabled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) /* allocate driver data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650) applespi = devm_kzalloc(&spi->dev, sizeof(*applespi), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) if (!applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) applespi->spi = spi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) INIT_WORK(&applespi->work, applespi_worker);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658) /* store the driver data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) spi_set_drvdata(spi, applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) /* create our buffers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662) applespi->tx_buffer = devm_kmalloc(&spi->dev, APPLESPI_PACKET_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664) applespi->tx_status = devm_kmalloc(&spi->dev, APPLESPI_STATUS_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666) applespi->rx_buffer = devm_kmalloc(&spi->dev, APPLESPI_PACKET_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668) applespi->msg_buf = devm_kmalloc_array(&spi->dev, MAX_PKTS_PER_MSG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) APPLESPI_PACKET_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) if (!applespi->tx_buffer || !applespi->tx_status ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673) !applespi->rx_buffer || !applespi->msg_buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676) /* set up our spi messages */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) applespi_setup_read_txfrs(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) applespi_setup_write_txfrs(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) /* cache ACPI method handles */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) acpi_sts = acpi_get_handle(spi_handle, "SIEN", &applespi->sien);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682) if (ACPI_FAILURE(acpi_sts)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684) "Failed to get SIEN ACPI method handle: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) acpi_format_exception(acpi_sts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689) acpi_sts = acpi_get_handle(spi_handle, "SIST", &applespi->sist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) if (ACPI_FAILURE(acpi_sts)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) "Failed to get SIST ACPI method handle: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693) acpi_format_exception(acpi_sts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697) /* switch on the SPI interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698) sts = applespi_setup_spi(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) if (sts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700) return sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702) sts = applespi_enable_spi(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) if (sts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704) return sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) /* setup the keyboard input dev */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707) applespi->keyboard_input_dev = devm_input_allocate_device(&spi->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) if (!applespi->keyboard_input_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) applespi->keyboard_input_dev->name = "Apple SPI Keyboard";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) applespi->keyboard_input_dev->phys = "applespi/input0";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714) applespi->keyboard_input_dev->dev.parent = &spi->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) applespi->keyboard_input_dev->id.bustype = BUS_SPI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) applespi->keyboard_input_dev->evbit[0] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718) BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) | BIT_MASK(EV_REP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719) applespi->keyboard_input_dev->ledbit[0] = BIT_MASK(LED_CAPSL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721) input_set_drvdata(applespi->keyboard_input_dev, applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722) applespi->keyboard_input_dev->event = applespi_event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724) for (i = 0; i < ARRAY_SIZE(applespi_scancodes); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725) if (applespi_scancodes[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726) input_set_capability(applespi->keyboard_input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) EV_KEY, applespi_scancodes[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729) for (i = 0; i < ARRAY_SIZE(applespi_controlcodes); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) if (applespi_controlcodes[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) input_set_capability(applespi->keyboard_input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732) EV_KEY, applespi_controlcodes[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) for (i = 0; i < ARRAY_SIZE(applespi_fn_codes); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735) if (applespi_fn_codes[i].to)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) input_set_capability(applespi->keyboard_input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737) EV_KEY, applespi_fn_codes[i].to);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739) input_set_capability(applespi->keyboard_input_dev, EV_KEY, KEY_FN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741) sts = input_register_device(applespi->keyboard_input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742) if (sts) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) "Unable to register keyboard input device (%d)\n", sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) * The applespi device doesn't send interrupts normally (as is described
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) * in its DSDT), but rather seems to use ACPI GPEs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752) acpi_sts = acpi_evaluate_integer(spi_handle, "_GPE", NULL, &gpe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) if (ACPI_FAILURE(acpi_sts)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755) "Failed to obtain GPE for SPI slave device: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) acpi_format_exception(acpi_sts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759) applespi->gpe = (int)gpe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) acpi_sts = acpi_install_gpe_handler(NULL, applespi->gpe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) ACPI_GPE_LEVEL_TRIGGERED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763) applespi_notify, applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764) if (ACPI_FAILURE(acpi_sts)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) "Failed to install GPE handler for GPE %d: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) applespi->gpe, acpi_format_exception(acpi_sts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) applespi->suspended = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773) acpi_sts = acpi_enable_gpe(NULL, applespi->gpe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) if (ACPI_FAILURE(acpi_sts)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776) "Failed to enable GPE handler for GPE %d: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777) applespi->gpe, acpi_format_exception(acpi_sts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778) acpi_remove_gpe_handler(NULL, applespi->gpe, applespi_notify);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782) /* trigger touchpad setup */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783) applespi_init(applespi, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786) * By default this device is not enabled for wakeup; but USB keyboards
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) * generally are, so the expectation is that by default the keyboard
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788) * will wake the system.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790) device_wakeup_enable(&spi->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) /* set up keyboard-backlight */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793) sts = applespi_get_saved_bl_level(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1794) if (sts >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1795) applespi_set_bl_level(&applespi->backlight_info, sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1797) applespi->backlight_info.name = "spi::kbd_backlight";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1798) applespi->backlight_info.default_trigger = "kbd-backlight";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1799) applespi->backlight_info.brightness_set = applespi_set_bl_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1800)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1801) sts = devm_led_classdev_register(&spi->dev, &applespi->backlight_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1802) if (sts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1803) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1804) "Unable to register keyboard backlight class dev (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1805) sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1806)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1807) /* set up debugfs entries for touchpad dimensions logging */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1808) applespi->debugfs_root = debugfs_create_dir("applespi", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1809)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1810) debugfs_create_bool("enable_tp_dim", 0600, applespi->debugfs_root,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1811) &applespi->debug_tp_dim);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1813) debugfs_create_file("tp_dim", 0400, applespi->debugfs_root, applespi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1814) &applespi_tp_dim_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1815)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1816) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1817) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1818)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1819) static void applespi_drain_writes(struct applespi_data *applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1820) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1821) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1823) spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1825) applespi->drain = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1826) wait_event_lock_irq(applespi->drain_complete, !applespi->write_active,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1827) applespi->cmd_msg_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1828)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1829) spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1830) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1832) static void applespi_drain_reads(struct applespi_data *applespi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1833) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1834) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1835)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1836) spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1838) wait_event_lock_irq(applespi->drain_complete, !applespi->read_active,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1839) applespi->cmd_msg_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1841) applespi->suspended = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1842)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1843) spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1844) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1845)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1846) static int applespi_remove(struct spi_device *spi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1847) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1848) struct applespi_data *applespi = spi_get_drvdata(spi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1849)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1850) applespi_drain_writes(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1851)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1852) acpi_disable_gpe(NULL, applespi->gpe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1853) acpi_remove_gpe_handler(NULL, applespi->gpe, applespi_notify);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1854) device_wakeup_disable(&spi->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1855)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1856) applespi_drain_reads(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1857)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1858) debugfs_remove_recursive(applespi->debugfs_root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1859)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1860) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1861) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1862)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1863) static void applespi_shutdown(struct spi_device *spi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1864) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1865) struct applespi_data *applespi = spi_get_drvdata(spi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1867) applespi_save_bl_level(applespi, applespi->have_bl_level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1868) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1869)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1870) static int applespi_poweroff_late(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1871) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1872) struct spi_device *spi = to_spi_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1873) struct applespi_data *applespi = spi_get_drvdata(spi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1874)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1875) applespi_save_bl_level(applespi, applespi->have_bl_level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1876)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1877) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1878) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1879)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1880) static int __maybe_unused applespi_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1881) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1882) struct spi_device *spi = to_spi_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1883) struct applespi_data *applespi = spi_get_drvdata(spi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1884) acpi_status acpi_sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1885) int sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1886)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1887) /* turn off caps-lock - it'll stay on otherwise */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1888) sts = applespi_set_capsl_led(applespi, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1889) if (sts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1890) dev_warn(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1891) "Failed to turn off caps-lock led (%d)\n", sts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1892)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1893) applespi_drain_writes(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1895) /* disable the interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1896) acpi_sts = acpi_disable_gpe(NULL, applespi->gpe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1897) if (ACPI_FAILURE(acpi_sts))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1898) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1899) "Failed to disable GPE handler for GPE %d: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1900) applespi->gpe, acpi_format_exception(acpi_sts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1901)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1902) applespi_drain_reads(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1903)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1904) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1905) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1906)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1907) static int __maybe_unused applespi_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1908) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1909) struct spi_device *spi = to_spi_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1910) struct applespi_data *applespi = spi_get_drvdata(spi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1911) acpi_status acpi_sts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1912) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1913)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1914) /* ensure our flags and state reflect a newly resumed device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1915) spin_lock_irqsave(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1916)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1917) applespi->drain = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1918) applespi->have_cl_led_on = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1919) applespi->have_bl_level = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1920) applespi->cmd_msg_queued = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1921) applespi->read_active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1922) applespi->write_active = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1923)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1924) applespi->suspended = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1925)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1926) spin_unlock_irqrestore(&applespi->cmd_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1927)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1928) /* switch on the SPI interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1929) applespi_enable_spi(applespi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1930)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1931) /* re-enable the interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1932) acpi_sts = acpi_enable_gpe(NULL, applespi->gpe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1933) if (ACPI_FAILURE(acpi_sts))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1934) dev_err(&applespi->spi->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1935) "Failed to re-enable GPE handler for GPE %d: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1936) applespi->gpe, acpi_format_exception(acpi_sts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1937)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1938) /* switch the touchpad into multitouch mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1939) applespi_init(applespi, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1940)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1941) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1942) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1943)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1944) static const struct acpi_device_id applespi_acpi_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1945) { "APP000D", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1946) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1947) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1948) MODULE_DEVICE_TABLE(acpi, applespi_acpi_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1949)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1950) static const struct dev_pm_ops applespi_pm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1951) SET_SYSTEM_SLEEP_PM_OPS(applespi_suspend, applespi_resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1952) .poweroff_late = applespi_poweroff_late,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1953) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1954)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1955) static struct spi_driver applespi_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1956) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1957) .name = "applespi",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1958) .acpi_match_table = applespi_acpi_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1959) .pm = &applespi_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1960) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1961) .probe = applespi_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1962) .remove = applespi_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1963) .shutdown = applespi_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1964) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1965)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1966) module_spi_driver(applespi_driver)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1968) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1969) MODULE_DESCRIPTION("MacBook(Pro) SPI Keyboard/Touchpad driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1970) MODULE_AUTHOR("Federico Lorenzi");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1971) MODULE_AUTHOR("Ronald Tschalär");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags