diff options
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-hid-appletb-kbd | 13 | ||||
| -rw-r--r-- | drivers/hid/Kconfig | 25 | ||||
| -rw-r--r-- | drivers/hid/Makefile | 2 | ||||
| -rw-r--r-- | drivers/hid/hid-appletb-bl.c | 204 | ||||
| -rw-r--r-- | drivers/hid/hid-appletb-kbd.c | 507 | ||||
| -rw-r--r-- | drivers/hid/hid-quirks.c | 8 |
6 files changed, 757 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-appletb-kbd b/Documentation/ABI/testing/sysfs-driver-hid-appletb-kbd new file mode 100644 index 000000000000..2a19584d091e --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-appletb-kbd @@ -0,0 +1,13 @@ +What: /sys/bus/hid/drivers/hid-appletb-kbd/<dev>/mode +Date: September, 2023 +KernelVersion: 6.5 +Contact: linux-input@vger.kernel.org +Description: + The set of keys displayed on the Touch Bar. + Valid values are: + == ================= + 0 Escape key only + 1 Function keys + 2 Media/brightness keys + 3 None + == ================= diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index dfc245867a46..e9da46dd4483 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -148,6 +148,31 @@ config HID_APPLEIR Say Y here if you want support for Apple infrared remote control. +config HID_APPLETB_BL + tristate "Apple Touch Bar Backlight" + depends on BACKLIGHT_CLASS_DEVICE + help + Say Y here if you want support for the backlight of Touch Bars on x86 + MacBook Pros. + + To compile this driver as a module, choose M here: the + module will be called hid-appletb-bl. + +config HID_APPLETB_KBD + tristate "Apple Touch Bar Keyboard Mode" + depends on USB_HID + depends on BACKLIGHT_CLASS_DEVICE + depends on INPUT + select INPUT_SPARSEKMAP + select HID_APPLETB_BL + help + Say Y here if you want support for the keyboard mode (escape, + function, media and brightness keys) of Touch Bars on x86 MacBook + Pros. + + To compile this driver as a module, choose M here: the + module will be called hid-appletb-kbd. + config HID_ASUS tristate "Asus" depends on USB_HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 482b096eea28..0775269be0a9 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -29,6 +29,8 @@ obj-$(CONFIG_HID_ALPS) += hid-alps.o obj-$(CONFIG_HID_ACRUX) += hid-axff.o obj-$(CONFIG_HID_APPLE) += hid-apple.o obj-$(CONFIG_HID_APPLEIR) += hid-appleir.o +obj-$(CONFIG_HID_APPLETB_BL) += hid-appletb-bl.o +obj-$(CONFIG_HID_APPLETB_KBD) += hid-appletb-kbd.o obj-$(CONFIG_HID_CREATIVE_SB0540) += hid-creative-sb0540.o obj-$(CONFIG_HID_ASUS) += hid-asus.o obj-$(CONFIG_HID_AUREAL) += hid-aureal.o diff --git a/drivers/hid/hid-appletb-bl.c b/drivers/hid/hid-appletb-bl.c new file mode 100644 index 000000000000..bad2aead8780 --- /dev/null +++ b/drivers/hid/hid-appletb-bl.c @@ -0,0 +1,204 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Apple Touch Bar Backlight Driver + * + * Copyright (c) 2017-2018 Ronald Tschalär + * Copyright (c) 2022-2023 Kerem Karabay <kekrby@gmail.com> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/hid.h> +#include <linux/backlight.h> +#include <linux/device.h> + +#include "hid-ids.h" + +#define APPLETB_BL_ON 1 +#define APPLETB_BL_DIM 3 +#define APPLETB_BL_OFF 4 + +#define HID_UP_APPLEVENDOR_TB_BL 0xff120000 + +#define HID_VD_APPLE_TB_BRIGHTNESS 0xff120001 +#define HID_USAGE_AUX1 0xff120020 +#define HID_USAGE_BRIGHTNESS 0xff120021 + +static int appletb_bl_def_brightness = 2; +module_param_named(brightness, appletb_bl_def_brightness, int, 0444); +MODULE_PARM_DESC(brightness, "Default brightness:\n" + " 0 - Touchbar is off\n" + " 1 - Dim brightness\n" + " [2] - Full brightness"); + +struct appletb_bl { + struct hid_field *aux1_field, *brightness_field; + struct backlight_device *bdev; + + bool full_on; +}; + +static const u8 appletb_bl_brightness_map[] = { + APPLETB_BL_OFF, + APPLETB_BL_DIM, + APPLETB_BL_ON, +}; + +static int appletb_bl_set_brightness(struct appletb_bl *bl, u8 brightness) +{ + struct hid_report *report = bl->brightness_field->report; + struct hid_device *hdev = report->device; + int ret; + + ret = hid_set_field(bl->aux1_field, 0, 1); + if (ret) { + hid_err(hdev, "Failed to set auxiliary field (%pe)\n", ERR_PTR(ret)); + return ret; + } + + ret = hid_set_field(bl->brightness_field, 0, brightness); + if (ret) { + hid_err(hdev, "Failed to set brightness field (%pe)\n", ERR_PTR(ret)); + return ret; + } + + if (!bl->full_on) { + ret = hid_hw_power(hdev, PM_HINT_FULLON); + if (ret < 0) { + hid_err(hdev, "Device didn't power on (%pe)\n", ERR_PTR(ret)); + return ret; + } + + bl->full_on = true; + } + + hid_hw_request(hdev, report, HID_REQ_SET_REPORT); + + if (brightness == APPLETB_BL_OFF) { + hid_hw_power(hdev, PM_HINT_NORMAL); + bl->full_on = false; + } + + return 0; +} + +static int appletb_bl_update_status(struct backlight_device *bdev) +{ + struct appletb_bl *bl = bl_get_data(bdev); + u8 brightness; + + if (backlight_is_blank(bdev)) + brightness = APPLETB_BL_OFF; + else + brightness = appletb_bl_brightness_map[backlight_get_brightness(bdev)]; + + return appletb_bl_set_brightness(bl, brightness); +} + +static const struct backlight_ops appletb_bl_backlight_ops = { + .options = BL_CORE_SUSPENDRESUME, + .update_status = appletb_bl_update_status, +}; + +static int appletb_bl_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + struct hid_field *aux1_field, *brightness_field; + struct backlight_properties bl_props = { 0 }; + struct device *dev = &hdev->dev; + struct appletb_bl *bl; + int ret; + + ret = hid_parse(hdev); + if (ret) + return dev_err_probe(dev, ret, "HID parse failed\n"); + + aux1_field = hid_find_field(hdev, HID_FEATURE_REPORT, + HID_VD_APPLE_TB_BRIGHTNESS, HID_USAGE_AUX1); + + brightness_field = hid_find_field(hdev, HID_FEATURE_REPORT, + HID_VD_APPLE_TB_BRIGHTNESS, HID_USAGE_BRIGHTNESS); + + if (!aux1_field || !brightness_field) + return -ENODEV; + + if (aux1_field->report != brightness_field->report) + return dev_err_probe(dev, -ENODEV, "Encountered unexpected report structure\n"); + + bl = devm_kzalloc(dev, sizeof(*bl), GFP_KERNEL); + if (!bl) + return -ENOMEM; + + ret = hid_hw_start(hdev, HID_CONNECT_DRIVER); + if (ret) + return dev_err_probe(dev, ret, "HID hardware start failed\n"); + + ret = hid_hw_open(hdev); + if (ret) { + dev_err_probe(dev, ret, "HID hardware open failed\n"); + goto stop_hw; + } + + bl->aux1_field = aux1_field; + bl->brightness_field = brightness_field; + + ret = appletb_bl_set_brightness(bl, + appletb_bl_brightness_map[(appletb_bl_def_brightness > 2) ? 2 : appletb_bl_def_brightness]); + + if (ret) { + dev_err_probe(dev, ret, "Failed to set default touch bar brightness to %d\n", + appletb_bl_def_brightness); + goto close_hw; + } + + bl_props.type = BACKLIGHT_RAW; + bl_props.max_brightness = ARRAY_SIZE(appletb_bl_brightness_map) - 1; + + bl->bdev = devm_backlight_device_register(dev, "appletb_backlight", dev, bl, + &appletb_bl_backlight_ops, &bl_props); + if (IS_ERR(bl->bdev)) { + ret = PTR_ERR(bl->bdev); + dev_err_probe(dev, ret, "Failed to register backlight device\n"); + goto close_hw; + } + + hid_set_drvdata(hdev, bl); + + return 0; + +close_hw: + hid_hw_close(hdev); +stop_hw: + hid_hw_stop(hdev); + + return ret; +} + +static void appletb_bl_remove(struct hid_device *hdev) +{ + struct appletb_bl *bl = hid_get_drvdata(hdev); + + appletb_bl_set_brightness(bl, APPLETB_BL_OFF); + + hid_hw_close(hdev); + hid_hw_stop(hdev); +} + +static const struct hid_device_id appletb_bl_hid_ids[] = { + /* MacBook Pro's 2018, 2019, with T2 chip: iBridge DFR Brightness */ + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_TOUCHBAR_BACKLIGHT) }, + { } +}; +MODULE_DEVICE_TABLE(hid, appletb_bl_hid_ids); + +static struct hid_driver appletb_bl_hid_driver = { + .name = "hid-appletb-bl", + .id_table = appletb_bl_hid_ids, + .probe = appletb_bl_probe, + .remove = appletb_bl_remove, +}; +module_hid_driver(appletb_bl_hid_driver); + +MODULE_AUTHOR("Ronald Tschalär"); +MODULE_AUTHOR("Kerem Karabay <kekrby@gmail.com>"); +MODULE_DESCRIPTION("MacBook Pro Touch Bar Backlight driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hid/hid-appletb-kbd.c b/drivers/hid/hid-appletb-kbd.c new file mode 100644 index 000000000000..d4b95aa3eecb --- /dev/null +++ b/drivers/hid/hid-appletb-kbd.c @@ -0,0 +1,507 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Apple Touch Bar Keyboard Mode Driver + * + * Copyright (c) 2017-2018 Ronald Tschalär + * Copyright (c) 2022-2023 Kerem Karabay <kekrby@gmail.com> + * Copyright (c) 2024-2025 Aditya Garg <gargaditya08@live.com> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/hid.h> +#include <linux/usb.h> +#include <linux/input.h> +#include <linux/sysfs.h> +#include <linux/bitops.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/backlight.h> +#include <linux/timer.h> +#include <linux/input/sparse-keymap.h> + +#include "hid-ids.h" + +#define APPLETB_KBD_MODE_ESC 0 +#define APPLETB_KBD_MODE_FN 1 +#define APPLETB_KBD_MODE_SPCL 2 +#define APPLETB_KBD_MODE_OFF 3 +#define APPLETB_KBD_MODE_MAX APPLETB_KBD_MODE_OFF + +#define APPLETB_DEVID_KEYBOARD 1 +#define APPLETB_DEVID_TRACKPAD 2 + +#define HID_USAGE_MODE 0x00ff0004 + +static int appletb_tb_def_mode = APPLETB_KBD_MODE_SPCL; +module_param_named(mode, appletb_tb_def_mode, int, 0444); +MODULE_PARM_DESC(mode, "Default touchbar mode:\n" + " 0 - escape key only\n" + " 1 - function-keys\n" + " [2] - special keys"); + +static bool appletb_tb_fn_toggle = true; +module_param_named(fntoggle, appletb_tb_fn_toggle, bool, 0644); +MODULE_PARM_DESC(fntoggle, "Switch between Fn and media controls on pressing Fn key"); + +static bool appletb_tb_autodim = true; +module_param_named(autodim, appletb_tb_autodim, bool, 0644); +MODULE_PARM_DESC(autodim, "Automatically dim and turn off the Touch Bar after some time"); + +static int appletb_tb_dim_timeout = 60; +module_param_named(dim_timeout, appletb_tb_dim_timeout, int, 0644); +MODULE_PARM_DESC(dim_timeout, "Dim timeout in sec"); + +static int appletb_tb_idle_timeout = 15; +module_param_named(idle_timeout, appletb_tb_idle_timeout, int, 0644); +MODULE_PARM_DESC(idle_timeout, "Idle timeout in sec"); + +struct appletb_kbd { + struct hid_field *mode_field; + struct input_handler inp_handler; + struct input_handle kbd_handle; + struct input_handle tpd_handle; + struct backlight_device *backlight_dev; + struct timer_list inactivity_timer; + bool has_dimmed; + bool has_turned_off; + u8 saved_mode; + u8 current_mode; +}; + +static const struct key_entry appletb_kbd_keymap[] = { + { KE_KEY, KEY_ESC, { KEY_ESC } }, + { KE_KEY, KEY_F1, { KEY_BRIGHTNESSDOWN } }, + { KE_KEY, KEY_F2, { KEY_BRIGHTNESSUP } }, + { KE_KEY, KEY_F3, { KEY_RESERVED } }, + { KE_KEY, KEY_F4, { KEY_RESERVED } }, + { KE_KEY, KEY_F5, { KEY_KBDILLUMDOWN } }, + { KE_KEY, KEY_F6, { KEY_KBDILLUMUP } }, + { KE_KEY, KEY_F7, { KEY_PREVIOUSSONG } }, + { KE_KEY, KEY_F8, { KEY_PLAYPAUSE } }, + { KE_KEY, KEY_F9, { KEY_NEXTSONG } }, + { KE_KEY, KEY_F10, { KEY_MUTE } }, + { KE_KEY, KEY_F11, { KEY_VOLUMEDOWN } }, + { KE_KEY, KEY_F12, { KEY_VOLUMEUP } }, + { KE_END, 0 } +}; + +static int appletb_kbd_set_mode(struct appletb_kbd *kbd, u8 mode) +{ + struct hid_report *report = kbd->mode_field->report; + struct hid_device *hdev = report->device; + int ret; + + ret = hid_hw_power(hdev, PM_HINT_FULLON); + if (ret) { + hid_err(hdev, "Device didn't resume (%pe)\n", ERR_PTR(ret)); + return ret; + } + + ret = hid_set_field(kbd->mode_field, 0, mode); + if (ret) { + hid_err(hdev, "Failed to set mode field to %u (%pe)\n", mode, ERR_PTR(ret)); + goto power_normal; + } + + hid_hw_request(hdev, report, HID_REQ_SET_REPORT); + + kbd->current_mode = mode; + +power_normal: + hid_hw_power(hdev, PM_HINT_NORMAL); + + return ret; +} + +static ssize_t mode_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct appletb_kbd *kbd = dev_get_drvdata(dev); + + return sysfs_emit(buf, "%d\n", kbd->current_mode); +} + +static ssize_t mode_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct appletb_kbd *kbd = dev_get_drvdata(dev); + u8 mode; + int ret; + + ret = kstrtou8(buf, 0, &mode); + if (ret) + return ret; + + if (mode > APPLETB_KBD_MODE_MAX) + return -EINVAL; + + ret = appletb_kbd_set_mode(kbd, mode); + + return ret < 0 ? ret : size; +} +static DEVICE_ATTR_RW(mode); + +static struct attribute *appletb_kbd_attrs[] = { + &dev_attr_mode.attr, + NULL +}; +ATTRIBUTE_GROUPS(appletb_kbd); + +static int appletb_tb_key_to_slot(unsigned int code) +{ + switch (code) { + case KEY_ESC: + return 0; + case KEY_F1 ... KEY_F10: + return code - KEY_F1 + 1; + case KEY_F11 ... KEY_F12: + return code - KEY_F11 + 11; + + default: + return -EINVAL; + } +} + +static void appletb_inactivity_timer(struct timer_list *t) +{ + struct appletb_kbd *kbd = from_timer(kbd, t, inactivity_timer); + + if (kbd->backlight_dev && appletb_tb_autodim) { + if (!kbd->has_dimmed) { + backlight_device_set_brightness(kbd->backlight_dev, 1); + kbd->has_dimmed = true; + mod_timer(&kbd->inactivity_timer, jiffies + msecs_to_jiffies(appletb_tb_idle_timeout * 1000)); + } else if (!kbd->has_turned_off) { + backlight_device_set_brightness(kbd->backlight_dev, 0); + kbd->has_turned_off = true; + } + } +} + +static void reset_inactivity_timer(struct appletb_kbd *kbd) +{ + if (kbd->backlight_dev && appletb_tb_autodim) { + if (kbd->has_dimmed || kbd->has_turned_off) { + backlight_device_set_brightness(kbd->backlight_dev, 2); + kbd->has_dimmed = false; + kbd->has_turned_off = false; + } + mod_timer(&kbd->inactivity_timer, jiffies + msecs_to_jiffies(appletb_tb_dim_timeout * 1000)); + } +} + +static int appletb_kbd_hid_event(struct hid_device *hdev, struct hid_field *field, + struct hid_usage *usage, __s32 value) +{ + struct appletb_kbd *kbd = hid_get_drvdata(hdev); + struct key_entry *translation; + struct input_dev *input; + int slot; + + if ((usage->hid & HID_USAGE_PAGE) != HID_UP_KEYBOARD || usage->type != EV_KEY) + return 0; + + input = field->hidinput->input; + + /* + * Skip non-touch-bar keys. + * + * Either the touch bar itself or usbhid generate a slew of key-down + * events for all the meta keys. None of which we're at all interested + * in. + */ + slot = appletb_tb_key_to_slot(usage->code); + if (slot < 0) + return 0; + + reset_inactivity_timer(kbd); + + translation = sparse_keymap_entry_from_scancode(input, usage->code); + + if (translation && kbd->current_mode == APPLETB_KBD_MODE_SPCL) { + input_event(input, usage->type, translation->keycode, value); + + return 1; + } + + return kbd->current_mode == APPLETB_KBD_MODE_OFF; +} + +static void appletb_kbd_inp_event(struct input_handle *handle, unsigned int type, + unsigned int code, int value) +{ + struct appletb_kbd *kbd = handle->private; + + reset_inactivity_timer(kbd); + + if (type == EV_KEY && code == KEY_FN && appletb_tb_fn_toggle && + (kbd->current_mode == APPLETB_KBD_MODE_SPCL || + kbd->current_mode == APPLETB_KBD_MODE_FN)) { + if (value == 1) { + kbd->saved_mode = kbd->current_mode; + appletb_kbd_set_mode(kbd, kbd->current_mode == APPLETB_KBD_MODE_SPCL + ? APPLETB_KBD_MODE_FN : APPLETB_KBD_MODE_SPCL); + } else if (value == 0) { + if (kbd->saved_mode != kbd->current_mode) + appletb_kbd_set_mode(kbd, kbd->saved_mode); + } + } +} + +static int appletb_kbd_inp_connect(struct input_handler *handler, + struct input_dev *dev, + const struct input_device_id *id) +{ + struct appletb_kbd *kbd = handler->private; + struct input_handle *handle; + int rc; + + if (id->driver_info == APPLETB_DEVID_KEYBOARD) { + handle = &kbd->kbd_handle; + handle->name = "tbkbd"; + } else if (id->driver_info == APPLETB_DEVID_TRACKPAD) { + handle = &kbd->tpd_handle; + handle->name = "tbtpd"; + } else { + return -ENOENT; + } + + if (handle->dev) + return -EEXIST; + + handle->open = 0; + handle->dev = input_get_device(dev); + handle->handler = handler; + handle->private = kbd; + + rc = input_register_handle(handle); + if (rc) + goto err_free_dev; + + rc = input_open_device(handle); + if (rc) + goto err_unregister_handle; + + return 0; + + err_unregister_handle: + input_unregister_handle(handle); + err_free_dev: + input_put_device(handle->dev); + handle->dev = NULL; + return rc; +} + +static void appletb_kbd_inp_disconnect(struct input_handle *handle) +{ + input_close_device(handle); + input_unregister_handle(handle); + + input_put_device(handle->dev); + handle->dev = NULL; +} + +static int appletb_kbd_input_configured(struct hid_device *hdev, struct hid_input *hidinput) +{ + int idx; + struct input_dev *input = hidinput->input; + + /* + * Clear various input capabilities that are blindly set by the hid + * driver (usbkbd.c) + */ + memset(input->evbit, 0, sizeof(input->evbit)); + memset(input->keybit, 0, sizeof(input->keybit)); + memset(input->ledbit, 0, sizeof(input->ledbit)); + + __set_bit(EV_REP, input->evbit); + + sparse_keymap_setup(input, appletb_kbd_keymap, NULL); + + for (idx = 0; appletb_kbd_keymap[idx].type != KE_END; idx++) + input_set_capability(input, EV_KEY, appletb_kbd_keymap[idx].code); + + return 0; +} + +static const struct input_device_id appletb_kbd_input_devices[] = { + { + .flags = INPUT_DEVICE_ID_MATCH_BUS | + INPUT_DEVICE_ID_MATCH_VENDOR | + INPUT_DEVICE_ID_MATCH_KEYBIT, + .bustype = BUS_USB, + .vendor = USB_VENDOR_ID_APPLE, + .keybit = { [BIT_WORD(KEY_FN)] = BIT_MASK(KEY_FN) }, + .driver_info = APPLETB_DEVID_KEYBOARD, + }, + { + .flags = INPUT_DEVICE_ID_MATCH_BUS | + INPUT_DEVICE_ID_MATCH_VENDOR | + INPUT_DEVICE_ID_MATCH_KEYBIT, + .bustype = BUS_USB, + .vendor = USB_VENDOR_ID_APPLE, + .keybit = { [BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH) }, + .driver_info = APPLETB_DEVID_TRACKPAD, + }, + { } +}; + +static bool appletb_kbd_match_internal_device(struct input_handler *handler, + struct input_dev *inp_dev) +{ + struct device *dev = &inp_dev->dev; + + /* in kernel: dev && !is_usb_device(dev) */ + while (dev && !(dev->type && dev->type->name && + !strcmp(dev->type->name, "usb_device"))) + dev = dev->parent; + + /* + * Apple labels all their internal keyboards and trackpads as such, + * instead of maintaining an ever expanding list of product-id's we + * just look at the device's product name. + */ + if (dev) + return !!strstr(to_usb_device(dev)->product, "Internal Keyboard"); + + return false; +} + +static int appletb_kbd_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + struct appletb_kbd *kbd; + struct device *dev = &hdev->dev; + struct hid_field *mode_field; + int ret; + + ret = hid_parse(hdev); + if (ret) + return dev_err_probe(dev, ret, "HID parse failed\n"); + + mode_field = hid_find_field(hdev, HID_OUTPUT_REPORT, + HID_GD_KEYBOARD, HID_USAGE_MODE); + if (!mode_field) + return -ENODEV; + + kbd = devm_kzalloc(dev, sizeof(*kbd), GFP_KERNEL); + if (!kbd) + return -ENOMEM; + + kbd->mode_field = mode_field; + + ret = hid_hw_start(hdev, HID_CONNECT_HIDINPUT); + if (ret) + return dev_err_probe(dev, ret, "HID hw start failed\n"); + + ret = hid_hw_open(hdev); + if (ret) { + dev_err_probe(dev, ret, "HID hw open failed\n"); + goto stop_hw; + } + + kbd->backlight_dev = backlight_device_get_by_name("appletb_backlight"); + if (!kbd->backlight_dev) { + dev_err_probe(dev, -ENODEV, "Failed to get backlight device\n"); + } else { + backlight_device_set_brightness(kbd->backlight_dev, 2); + timer_setup(&kbd->inactivity_timer, appletb_inactivity_timer, 0); + mod_timer(&kbd->inactivity_timer, jiffies + msecs_to_jiffies(appletb_tb_dim_timeout * 1000)); + } + + kbd->inp_handler.event = appletb_kbd_inp_event; + kbd->inp_handler.connect = appletb_kbd_inp_connect; + kbd->inp_handler.disconnect = appletb_kbd_inp_disconnect; + kbd->inp_handler.name = "appletb"; + kbd->inp_handler.id_table = appletb_kbd_input_devices; + kbd->inp_handler.match = appletb_kbd_match_internal_device; + kbd->inp_handler.private = kbd; + + ret = input_register_handler(&kbd->inp_handler); + if (ret) { + dev_err_probe(dev, ret, "Unable to register keyboard handler\n"); + goto close_hw; + } + + ret = appletb_kbd_set_mode(kbd, appletb_tb_def_mode); + if (ret) { + dev_err_probe(dev, ret, "Failed to set touchbar mode\n"); + goto close_hw; + } + + hid_set_drvdata(hdev, kbd); + + return 0; + +close_hw: + hid_hw_close(hdev); +stop_hw: + hid_hw_stop(hdev); + return ret; +} + +static void appletb_kbd_remove(struct hid_device *hdev) +{ + struct appletb_kbd *kbd = hid_get_drvdata(hdev); + + appletb_kbd_set_mode(kbd, APPLETB_KBD_MODE_OFF); + + input_unregister_handler(&kbd->inp_handler); + del_timer_sync(&kbd->inactivity_timer); + + hid_hw_close(hdev); + hid_hw_stop(hdev); +} + +#ifdef CONFIG_PM +static int appletb_kbd_suspend(struct hid_device *hdev, pm_message_t msg) +{ + struct appletb_kbd *kbd = hid_get_drvdata(hdev); + + kbd->saved_mode = kbd->current_mode; + appletb_kbd_set_mode(kbd, APPLETB_KBD_MODE_OFF); + + return 0; +} + +static int appletb_kbd_reset_resume(struct hid_device *hdev) +{ + struct appletb_kbd *kbd = hid_get_drvdata(hdev); + + appletb_kbd_set_mode(kbd, kbd->saved_mode); + + return 0; +} +#endif + +static const struct hid_device_id appletb_kbd_hid_ids[] = { + /* MacBook Pro's 2018, 2019, with T2 chip: iBridge Display */ + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_TOUCHBAR_DISPLAY) }, + { } +}; +MODULE_DEVICE_TABLE(hid, appletb_kbd_hid_ids); + +static struct hid_driver appletb_kbd_hid_driver = { + .name = "hid-appletb-kbd", + .id_table = appletb_kbd_hid_ids, + .probe = appletb_kbd_probe, + .remove = appletb_kbd_remove, + .event = appletb_kbd_hid_event, + .input_configured = appletb_kbd_input_configured, +#ifdef CONFIG_PM + .suspend = appletb_kbd_suspend, + .reset_resume = appletb_kbd_reset_resume, +#endif + .driver.dev_groups = appletb_kbd_groups, +}; +module_hid_driver(appletb_kbd_hid_driver); + +/* The backlight driver should be loaded before the keyboard driver is initialised */ +MODULE_SOFTDEP("pre: hid_appletb_bl"); + +MODULE_AUTHOR("Ronald Tschalär"); +MODULE_AUTHOR("Kerem Karabay <kekrby@gmail.com>"); +MODULE_AUTHOR("Aditya Garg <gargaditya08@live.com>"); +MODULE_DESCRIPTION("MacBook Pro Touch Bar Keyboard Mode driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index 5d7a418ccdbe..ff1364f6e743 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -328,8 +328,6 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021) }, - { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_TOUCHBAR_BACKLIGHT) }, - { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_TOUCHBAR_DISPLAY) }, #endif #if IS_ENABLED(CONFIG_HID_APPLEIR) { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) }, @@ -338,6 +336,12 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) }, #endif +#if IS_ENABLED(CONFIG_HID_APPLETB_BL) + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_TOUCHBAR_BACKLIGHT) }, +#endif +#if IS_ENABLED(CONFIG_HID_APPLETB_KBD) + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_TOUCHBAR_DISPLAY) }, +#endif #if IS_ENABLED(CONFIG_HID_ASUS) { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD) }, { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD) }, |