diff options
Diffstat (limited to 'drivers/hid/hid-msi.c')
| -rw-r--r-- | drivers/hid/hid-msi.c | 2063 |
1 files changed, 2063 insertions, 0 deletions
diff --git a/drivers/hid/hid-msi.c b/drivers/hid/hid-msi.c new file mode 100644 index 000000000..3225d3bf6 --- /dev/null +++ b/drivers/hid/hid-msi.c @@ -0,0 +1,2063 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * HID driver for MSI Claw Handheld PC gamepads. + * + * Provides configuration support for the MSI Claw series of handheld PC + * gamepads. Multiple iterations of the device firmware has led to some + * quirks for how certain attributes are handled. The original firmware + * did not support remapping of the M1 (right) and M2 (left) rear paddles. + * Additionally, the MCU RAM address for writing configuration data has + * changed twice. Checks are done during probe to enumerate these variances. + * + * Copyright (c) 2026 Zhouwang Huang <honjow311@gmail.com> + * Copyright (c) 2026 Denis Benato <denis.benato@linux.dev> + * Copyright (c) 2026 Valve Corporation + */ + +#include <linux/array_size.h> +#include <linux/cleanup.h> +#include <linux/completion.h> +#include <linux/container_of.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/hid.h> +#include <linux/kobject.h> +#include <linux/led-class-multicolor.h> +#include <linux/leds.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/pm.h> +#include <linux/spinlock.h> +#include <linux/sysfs.h> +#include <linux/types.h> +#include <linux/unaligned.h> +#include <linux/usb.h> +#include <linux/workqueue.h> + +#include "hid-ids.h" + +#define CLAW_OUTPUT_REPORT_ID 0x0f +#define CLAW_INPUT_REPORT_ID 0x10 + +#define CLAW_PACKET_SIZE 64 + +#define CLAW_DINPUT_CFG_INTF_IN 0x82 +#define CLAW_XINPUT_CFG_INTF_IN 0x83 + +#define CLAW_KEYS_MAX 5 + +#define CLAW_RGB_ZONES 9 +#define CLAW_RGB_MAX_FRAMES 8 +#define CLAW_RGB_FRAME_OFFSET 0x24 + +enum claw_command_index { + CLAW_COMMAND_TYPE_NONE = 0x00, + CLAW_COMMAND_TYPE_READ_PROFILE = 0x04, + CLAW_COMMAND_TYPE_READ_PROFILE_ACK = 0x05, + CLAW_COMMAND_TYPE_ACK = 0x06, + CLAW_COMMAND_TYPE_WRITE_PROFILE_DATA = 0x21, + CLAW_COMMAND_TYPE_SYNC_TO_ROM = 0x22, + CLAW_COMMAND_TYPE_SWITCH_MODE = 0x24, + CLAW_COMMAND_TYPE_READ_GAMEPAD_MODE = 0x26, + CLAW_COMMAND_TYPE_GAMEPAD_MODE_ACK = 0x27, + CLAW_COMMAND_TYPE_RESET_DEVICE = 0x28, +}; + +enum claw_gamepad_mode_index { + CLAW_GAMEPAD_MODE_XINPUT = 0x01, + CLAW_GAMEPAD_MODE_DINPUT = 0x02, + CLAW_GAMEPAD_MODE_DESKTOP = 0x04, +}; + +static const char * const claw_gamepad_mode_text[] = { + [CLAW_GAMEPAD_MODE_XINPUT] = "xinput", + [CLAW_GAMEPAD_MODE_DINPUT] = "dinput", + [CLAW_GAMEPAD_MODE_DESKTOP] = "desktop", +}; + +enum claw_profile_ack_pending { + CLAW_NO_PENDING, + CLAW_M1_PENDING, + CLAW_M2_PENDING, + CLAW_RGB_PENDING, + CLAW_RUMBLE_LEFT_PENDING, + CLAW_RUMBLE_RIGHT_PENDING, +}; + +enum claw_key_index { + CLAW_KEY_M1, + CLAW_KEY_M2, +}; + +enum claw_mkeys_function_index { + CLAW_MKEY_FUNCTION_MACRO, + CLAW_MKEY_FUNCTION_DISABLED, + CLAW_MKEY_FUNCTION_COMBO, +}; + +enum claw_mode_field { + CLAW_FIELD_GAMEPAD_MODE, + CLAW_FIELD_MKEYS_FUNCTION, +}; + +static const char * const claw_mkeys_function_text[] = { + [CLAW_MKEY_FUNCTION_MACRO] = "macro", + [CLAW_MKEY_FUNCTION_DISABLED] = "disabled", + [CLAW_MKEY_FUNCTION_COMBO] = "combination", +}; + +static const struct { + u8 code; + const char *name; +} claw_button_mapping_key_map[] = { + /* Gamepad buttons */ + { 0x01, "ABS_HAT0Y_UP" }, + { 0x02, "ABS_HAT0Y_DOWN" }, + { 0x03, "ABS_HAT0X_LEFT" }, + { 0x04, "ABS_HAT0X_RIGHT" }, + { 0x05, "BTN_TL" }, + { 0x06, "BTN_TR" }, + { 0x07, "BTN_THUMBL" }, + { 0x08, "BTN_THUMBR" }, + { 0x09, "BTN_SOUTH" }, + { 0x0a, "BTN_EAST" }, + { 0x0b, "BTN_NORTH" }, + { 0x0c, "BTN_WEST" }, + { 0x0d, "BTN_MODE" }, + { 0x0e, "BTN_SELECT" }, + { 0x0f, "BTN_START" }, + { 0x13, "BTN_TL2"}, + { 0x14, "BTN_TR2"}, + { 0x15, "ABS_Y_UP"}, + { 0x16, "ABS_Y_DOWN"}, + { 0x17, "ABS_X_LEFT"}, + { 0x18, "ABS_X_RIGHT"}, + { 0x19, "ABS_RY_UP"}, + { 0x1a, "ABS_RY_DOWN"}, + { 0x1b, "ABS_RX_LEFT"}, + { 0x1c, "ABS_RX_RIGHT"}, + /* Keyboard keys */ + { 0x32, "KEY_ESC" }, + { 0x33, "KEY_F1" }, + { 0x34, "KEY_F2" }, + { 0x35, "KEY_F3" }, + { 0x36, "KEY_F4" }, + { 0x37, "KEY_F5" }, + { 0x38, "KEY_F6" }, + { 0x39, "KEY_F7" }, + { 0x3a, "KEY_F8" }, + { 0x3b, "KEY_F9" }, + { 0x3c, "KEY_F10" }, + { 0x3d, "KEY_F11" }, + { 0x3e, "KEY_F12" }, + { 0x3f, "KEY_GRAVE" }, + { 0x40, "KEY_1" }, + { 0x41, "KEY_2" }, + { 0x42, "KEY_3" }, + { 0x43, "KEY_4" }, + { 0x44, "KEY_5" }, + { 0x45, "KEY_6" }, + { 0x46, "KEY_7" }, + { 0x47, "KEY_8" }, + { 0x48, "KEY_9" }, + { 0x49, "KEY_0" }, + { 0x4a, "KEY_MINUS" }, + { 0x4b, "KEY_EQUAL" }, + { 0x4c, "KEY_BACKSPACE" }, + { 0x4d, "KEY_TAB" }, + { 0x4e, "KEY_Q" }, + { 0x4f, "KEY_W" }, + { 0x50, "KEY_E" }, + { 0x51, "KEY_R" }, + { 0x52, "KEY_T" }, + { 0x53, "KEY_Y" }, + { 0x54, "KEY_U" }, + { 0x55, "KEY_I" }, + { 0x56, "KEY_O" }, + { 0x57, "KEY_P" }, + { 0x58, "KEY_LEFTBRACE" }, + { 0x59, "KEY_RIGHTBRACE" }, + { 0x5a, "KEY_BACKSLASH" }, + { 0x5b, "KEY_CAPSLOCK" }, + { 0x5c, "KEY_A" }, + { 0x5d, "KEY_S" }, + { 0x5e, "KEY_D" }, + { 0x5f, "KEY_F" }, + { 0x60, "KEY_G" }, + { 0x61, "KEY_H" }, + { 0x62, "KEY_J" }, + { 0x63, "KEY_K" }, + { 0x64, "KEY_L" }, + { 0x65, "KEY_SEMICOLON" }, + { 0x66, "KEY_APOSTROPHE" }, + { 0x67, "KEY_ENTER" }, + { 0x68, "KEY_LEFTSHIFT" }, + { 0x69, "KEY_Z" }, + { 0x6a, "KEY_X" }, + { 0x6b, "KEY_C" }, + { 0x6c, "KEY_V" }, + { 0x6d, "KEY_B" }, + { 0x6e, "KEY_N" }, + { 0x6f, "KEY_M" }, + { 0x70, "KEY_COMMA" }, + { 0x71, "KEY_DOT" }, + { 0x72, "KEY_SLASH" }, + { 0x73, "KEY_RIGHTSHIFT" }, + { 0x74, "KEY_LEFTCTRL" }, + { 0x75, "KEY_LEFTMETA" }, + { 0x76, "KEY_LEFTALT" }, + { 0x77, "KEY_SPACE" }, + { 0x78, "KEY_RIGHTALT" }, + { 0x79, "KEY_RIGHTCTRL" }, + { 0x7a, "KEY_INSERT" }, + { 0x7b, "KEY_HOME" }, + { 0x7c, "KEY_PAGEUP" }, + { 0x7d, "KEY_DELETE" }, + { 0x7e, "KEY_END" }, + { 0x7f, "KEY_PAGEDOWN" }, + { 0x8a, "KEY_KPENTER" }, + { 0x8b, "KEY_KP0" }, + { 0x8c, "KEY_KP1" }, + { 0x8d, "KEY_KP2" }, + { 0x8e, "KEY_KP3" }, + { 0x8f, "KEY_KP4" }, + { 0x90, "KEY_KP5" }, + { 0x91, "KEY_KP6" }, + { 0x92, "KEY_KP7" }, + { 0x93, "KEY_KP8" }, + { 0x94, "KEY_KP9" }, + { 0x95, "MD_PLAY" }, + { 0x96, "MD_STOP" }, + { 0x97, "MD_NEXT" }, + { 0x98, "MD_PREV" }, + { 0x99, "MD_VOL_UP" }, + { 0x9a, "MD_VOL_DOWN" }, + { 0x9b, "MD_VOL_MUTE" }, + { 0x9c, "KEY_F23" }, + /* Mouse events */ + { 0xc8, "BTN_LEFT" }, + { 0xc9, "BTN_MIDDLE" }, + { 0xca, "BTN_RIGHT" }, + { 0xcb, "BTN_SIDE" }, + { 0xcc, "BTN_EXTRA" }, + { 0xcd, "REL_WHEEL_UP" }, + { 0xce, "REL_WHEEL_DOWN" }, + { 0xff, "DISABLED" }, +}; + +enum claw_rgb_effect_index { + CLAW_RGB_EFFECT_MONOCOLOR, + CLAW_RGB_EFFECT_BREATHE, + CLAW_RGB_EFFECT_CHROMA, + CLAW_RGB_EFFECT_RAINBOW, + CLAW_RGB_EFFECT_FROSTFIRE, +}; + +static const char * const claw_rgb_effect_text[] = { + [CLAW_RGB_EFFECT_MONOCOLOR] = "monocolor", + [CLAW_RGB_EFFECT_BREATHE] = "breathe", + [CLAW_RGB_EFFECT_CHROMA] = "chroma", + [CLAW_RGB_EFFECT_RAINBOW] = "rainbow", + [CLAW_RGB_EFFECT_FROSTFIRE] = "frostfire", +}; + +static const u16 button_mapping_addr_old[] = { + 0x007a, /* M1 */ + 0x011f, /* M2 */ +}; + +static const u16 button_mapping_addr_new[] = { + 0x00bb, /* M1 */ + 0x0164, /* M2 */ +}; + +static const u16 rgb_addr_old = 0x01fa; +static const u16 rgb_addr_new = 0x024a; + +static const u16 rumble_addr[] = { + 0x0022, /* left */ + 0x0023, /* right */ +}; + +struct claw_command_report { + u8 report_id; + u8 padding[2]; + u8 header_tail; + u8 cmd; + u8 data[59]; +} __packed; + +struct claw_profile_report { + u8 profile; + __be16 read_addr; +} __packed; + +struct claw_mkey_report { + struct claw_profile_report; + u8 padding_0; + u8 padding_1; + u8 padding_2; + u8 codes[5]; +} __packed; + +struct rgb_zone { + u8 red; + u8 green; + u8 blue; +}; + +struct rgb_frame { + struct rgb_zone zone[CLAW_RGB_ZONES]; +}; + +struct claw_rgb_report { + struct claw_profile_report; + u8 frame_bytes; + u8 padding; + u8 frame_count; + u8 state; /* Always 0x09 */ + u8 speed; + u8 brightness; + struct rgb_frame zone_data; +} __packed; + +struct claw_rumble_report { + struct claw_profile_report; + u8 padding; + u8 intensity; +} __packed; + +struct claw_drvdata { + /* MCU General Variables */ + enum claw_profile_ack_pending profile_pending; + struct completion orphan_ack_complete; + struct completion send_cmd_complete; + struct delayed_work cfg_resume; + struct delayed_work cfg_setup; + spinlock_t registration_lock; /* Lock for registration read/write */ + struct mutex profile_mutex; /* mutex for profile_pending calls */ + spinlock_t profile_lock; /* Lock for profile_pending read/write */ + struct hid_device *hdev; + bool orphan_ack_pending; + struct mutex cfg_mutex; /* mutex for synchronous data */ + struct mutex rom_mutex; /* mutex for SYNC_TO_ROM calls */ + spinlock_t cmd_lock; /* Lock for cmd data read/write */ + u8 waiting_cmd; + int cmd_status; + u16 bcd_device; + u8 ep; + + /* Gamepad Variables */ + enum claw_mkeys_function_index mkeys_function; + enum claw_gamepad_mode_index gamepad_mode; + u8 m1_codes[CLAW_KEYS_MAX]; + u8 m2_codes[CLAW_KEYS_MAX]; + u8 rumble_intensity_right; + u8 rumble_intensity_left; + const u16 *bmap_addr; + spinlock_t rumble_lock; /* lock for rumble_intensity read/write */ + spinlock_t mode_lock; /* Lock for mode data read/write */ + bool rumble_support; + bool gp_registered; + bool bmap_support; + + /* RGB Variables */ + struct rgb_frame rgb_frames[CLAW_RGB_MAX_FRAMES]; + enum claw_rgb_effect_index rgb_effect; + struct led_classdev_mc led_mc; + struct delayed_work rgb_queue; + spinlock_t frame_lock; /* lock for rgb_frames read/write */ + bool rgb_registered; + u8 rgb_frame_count; + bool rgb_enabled; + u8 rgb_speed; + u16 rgb_addr; +}; + +static int get_endpoint_address(struct hid_device *hdev) +{ + struct usb_host_endpoint *ep; + struct usb_interface *intf; + + intf = to_usb_interface(hdev->dev.parent); + ep = intf->cur_altsetting->endpoint; + if (ep) + return ep->desc.bEndpointAddress; + + return -ENODEV; +} + +static int claw_gamepad_mode_event(struct claw_drvdata *drvdata, + struct claw_command_report *cmd_rep) +{ + if (cmd_rep->data[0] >= ARRAY_SIZE(claw_gamepad_mode_text) || + !claw_gamepad_mode_text[cmd_rep->data[0]] || + cmd_rep->data[1] >= ARRAY_SIZE(claw_mkeys_function_text)) + return -EINVAL; + + scoped_guard(spinlock_irqsave, &drvdata->mode_lock) { + drvdata->gamepad_mode = cmd_rep->data[0]; + drvdata->mkeys_function = cmd_rep->data[1]; + } + + return 0; +} + +static int claw_profile_event(struct claw_drvdata *drvdata, struct claw_command_report *cmd_rep) +{ + enum claw_profile_ack_pending profile; + struct claw_rumble_report *rumble; + struct claw_mkey_report *mkeys; + struct claw_rgb_report *frame; + u16 rgb_addr, read_addr; + u8 *codes, key, f_idx; + u16 frame_calc; + int i; + + scoped_guard(spinlock_irqsave, &drvdata->profile_lock) + profile = drvdata->profile_pending; + + switch (profile) { + case CLAW_M1_PENDING: + case CLAW_M2_PENDING: + key = (profile == CLAW_M1_PENDING) ? CLAW_KEY_M1 : CLAW_KEY_M2; + mkeys = (struct claw_mkey_report *)cmd_rep->data; + if (be16_to_cpu(mkeys->read_addr) != drvdata->bmap_addr[key]) + return -EAGAIN; + codes = (profile == CLAW_M1_PENDING) ? drvdata->m1_codes : drvdata->m2_codes; + for (i = 0; i < CLAW_KEYS_MAX; i++) + codes[i] = (mkeys->codes[i]); + break; + case CLAW_RGB_PENDING: + frame = (struct claw_rgb_report *)cmd_rep->data; + rgb_addr = drvdata->rgb_addr; + read_addr = be16_to_cpu(frame->read_addr); + + if (read_addr < drvdata->rgb_addr) + return -EAGAIN; + + frame_calc = (read_addr - rgb_addr) / CLAW_RGB_FRAME_OFFSET; + if (frame_calc >= CLAW_RGB_MAX_FRAMES) { + dev_err(&drvdata->hdev->dev, "Got unsupported frame index: %x\n", + frame_calc); + return -EAGAIN; + } + f_idx = frame_calc; + + scoped_guard(spinlock_irqsave, &drvdata->frame_lock) { + memcpy(&drvdata->rgb_frames[f_idx], &frame->zone_data, + sizeof(struct rgb_frame)); + + /* Only use frame 0 for remaining variable assignment */ + if (f_idx != 0) + break; + + drvdata->rgb_speed = frame->speed; + drvdata->led_mc.led_cdev.brightness = frame->brightness; + drvdata->led_mc.subled_info[0].intensity = frame->zone_data.zone[0].red; + drvdata->led_mc.subled_info[1].intensity = frame->zone_data.zone[0].green; + drvdata->led_mc.subled_info[2].intensity = frame->zone_data.zone[0].blue; + } + + break; + case CLAW_RUMBLE_LEFT_PENDING: + rumble = (struct claw_rumble_report *)cmd_rep->data; + if (be16_to_cpu(rumble->read_addr) != rumble_addr[0]) + return -EAGAIN; + scoped_guard(spinlock_irqsave, &drvdata->rumble_lock) + drvdata->rumble_intensity_left = rumble->intensity; + break; + case CLAW_RUMBLE_RIGHT_PENDING: + rumble = (struct claw_rumble_report *)cmd_rep->data; + if (be16_to_cpu(rumble->read_addr) != rumble_addr[1]) + return -EAGAIN; + scoped_guard(spinlock_irqsave, &drvdata->rumble_lock) + drvdata->rumble_intensity_right = rumble->intensity; + break; + default: + dev_dbg(&drvdata->hdev->dev, + "Got profile event without changes pending from command: %x\n", + cmd_rep->cmd); + return -EINVAL; + } + scoped_guard(spinlock_irqsave, &drvdata->profile_lock) + drvdata->profile_pending = CLAW_NO_PENDING; + + return 0; +} + +static int claw_raw_event(struct claw_drvdata *drvdata, struct hid_report *report, + u8 *data, int size) +{ + struct claw_command_report *cmd_rep; + int ret = 0; + + if (size != CLAW_PACKET_SIZE) + return 0; + + cmd_rep = (struct claw_command_report *)data; + + if (cmd_rep->report_id != CLAW_INPUT_REPORT_ID || cmd_rep->header_tail != 0x3c) + return 0; + + dev_dbg(&drvdata->hdev->dev, "Rx data as raw input report: [%*ph]\n", + CLAW_PACKET_SIZE, data); + + guard(spinlock_irqsave)(&drvdata->cmd_lock); + switch (cmd_rep->cmd) { + case CLAW_COMMAND_TYPE_GAMEPAD_MODE_ACK: + ret = claw_gamepad_mode_event(drvdata, cmd_rep); + if (drvdata->waiting_cmd == CLAW_COMMAND_TYPE_READ_GAMEPAD_MODE) { + drvdata->cmd_status = ret; + complete(&drvdata->send_cmd_complete); + } + + break; + case CLAW_COMMAND_TYPE_READ_PROFILE_ACK: + ret = claw_profile_event(drvdata, cmd_rep); + /* Stale address received, ignore and keep waiting */ + if (ret == -EAGAIN) + return 0; + if (drvdata->waiting_cmd == CLAW_COMMAND_TYPE_READ_PROFILE) { + drvdata->cmd_status = ret; + complete(&drvdata->send_cmd_complete); + } + + break; + case CLAW_COMMAND_TYPE_ACK: + if (drvdata->orphan_ack_pending) { + drvdata->orphan_ack_pending = false; + complete(&drvdata->orphan_ack_complete); + break; + } + + if (drvdata->waiting_cmd == CLAW_COMMAND_TYPE_NONE) { + dev_warn(&drvdata->hdev->dev, "Got unexpected ACK from MCU, ignoring\n"); + break; + } + + drvdata->cmd_status = 0; + complete(&drvdata->send_cmd_complete); + + dev_dbg(&drvdata->hdev->dev, "Waiting CMD: %x\n", drvdata->waiting_cmd); + + break; + default: + dev_dbg(&drvdata->hdev->dev, "Unknown command: %x\n", cmd_rep->cmd); + return 0; + } + + return ret; +} + +static int msi_raw_event(struct hid_device *hdev, struct hid_report *report, + u8 *data, int size) +{ + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + + if (!drvdata || (drvdata->ep != CLAW_XINPUT_CFG_INTF_IN && + drvdata->ep != CLAW_DINPUT_CFG_INTF_IN)) + return 0; + + return claw_raw_event(drvdata, report, data, size); +} + +/* Caller must hold drvdata->cfg_mutex. */ +static int __claw_hw_output_report(struct hid_device *hdev, u8 index, u8 *data, + size_t len, unsigned int timeout) +{ + unsigned char *dmabuf __free(kfree) = NULL; + u8 header[] = { CLAW_OUTPUT_REPORT_ID, 0, 0, 0x3c, index }; + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + size_t header_size = ARRAY_SIZE(header); + bool orphaned; + int ret; + + lockdep_assert_held(&drvdata->cfg_mutex); + + /* If expecting an orphan ack, hold next event until MCU has time to clear it */ + scoped_guard(spinlock_irqsave, &drvdata->cmd_lock) + orphaned = drvdata->orphan_ack_pending; + + if (orphaned) { + wait_for_completion_timeout(&drvdata->orphan_ack_complete, msecs_to_jiffies(25)); + scoped_guard(spinlock_irqsave, &drvdata->cmd_lock) + drvdata->orphan_ack_pending = false; + } + + if (header_size + len > CLAW_PACKET_SIZE) + return -EINVAL; + + /* We can't use a devm_alloc reusable buffer without side effects during suspend */ + dmabuf = kzalloc(CLAW_PACKET_SIZE, GFP_KERNEL); + if (!dmabuf) + return -ENOMEM; + + memcpy(dmabuf, header, header_size); + if (data && len) + memcpy(dmabuf + header_size, data, len); + + reinit_completion(&drvdata->send_cmd_complete); + + scoped_guard(spinlock_irqsave, &drvdata->cmd_lock) { + if (timeout) { + drvdata->waiting_cmd = index; + drvdata->cmd_status = -ETIMEDOUT; + } else { + reinit_completion(&drvdata->orphan_ack_complete); + drvdata->waiting_cmd = CLAW_COMMAND_TYPE_NONE; + drvdata->orphan_ack_pending = true; + } + } + + dev_dbg(&hdev->dev, "Send data as raw output report: [%*ph]\n", + CLAW_PACKET_SIZE, dmabuf); + + ret = hid_hw_output_report(hdev, dmabuf, CLAW_PACKET_SIZE); + if (ret < 0) + goto err; + + ret = ret == CLAW_PACKET_SIZE ? 0 : -EIO; + if (ret) + goto err; + + if (timeout) { + ret = wait_for_completion_interruptible_timeout(&drvdata->send_cmd_complete, + msecs_to_jiffies(timeout)); + + dev_dbg(&hdev->dev, "Remaining timeout: %u\n", ret); + ret = ret > 0 ? drvdata->cmd_status : ret ?: -EBUSY; + if (ret) + goto err; + } + + scoped_guard(spinlock_irqsave, &drvdata->cmd_lock) + drvdata->waiting_cmd = CLAW_COMMAND_TYPE_NONE; + + return ret; + +err: + scoped_guard(spinlock_irqsave, &drvdata->cmd_lock) { + drvdata->waiting_cmd = CLAW_COMMAND_TYPE_NONE; + drvdata->orphan_ack_pending = false; + } + return ret; +} + +static int claw_hw_output_report(struct hid_device *hdev, u8 index, u8 *data, + size_t len, unsigned int timeout) +{ + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + + guard(mutex)(&drvdata->cfg_mutex); + return __claw_hw_output_report(hdev, index, data, len, timeout); +} + +static int claw_switch_mode(struct hid_device *hdev, enum claw_mode_field field, u8 val) +{ + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + u8 data[2]; + + guard(mutex)(&drvdata->cfg_mutex); + + scoped_guard(spinlock_irqsave, &drvdata->mode_lock) { + switch (field) { + case CLAW_FIELD_GAMEPAD_MODE: + data[0] = val; + data[1] = drvdata->mkeys_function; + break; + case CLAW_FIELD_MKEYS_FUNCTION: + data[0] = drvdata->gamepad_mode; + data[1] = val; + break; + } + } + + return __claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_SWITCH_MODE, data, + ARRAY_SIZE(data), 0); +} + +static ssize_t gamepad_mode_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + int i, ret = -EINVAL; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + for (i = 0; i < ARRAY_SIZE(claw_gamepad_mode_text); i++) { + if (claw_gamepad_mode_text[i] && sysfs_streq(buf, claw_gamepad_mode_text[i])) { + ret = i; + break; + } + } + if (ret < 0) + return ret; + + ret = claw_switch_mode(hdev, CLAW_FIELD_GAMEPAD_MODE, ret); + if (ret) + return ret; + + return count; +} + +static ssize_t gamepad_mode_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + int ret, i; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_READ_GAMEPAD_MODE, NULL, 0, 25); + if (ret) + return ret; + + scoped_guard(spinlock_irqsave, &drvdata->mode_lock) + i = drvdata->gamepad_mode; + + if (!claw_gamepad_mode_text[i] || claw_gamepad_mode_text[i][0] == '\0') + return sysfs_emit(buf, "unsupported\n"); + + return sysfs_emit(buf, "%s\n", claw_gamepad_mode_text[i]); +} +static DEVICE_ATTR_RW(gamepad_mode); + +static ssize_t gamepad_mode_index_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + ssize_t count = 0; + int i; + + for (i = 0; i < ARRAY_SIZE(claw_gamepad_mode_text); i++) { + if (!claw_gamepad_mode_text[i] || claw_gamepad_mode_text[i][0] == '\0') + continue; + count += sysfs_emit_at(buf, count, "%s ", claw_gamepad_mode_text[i]); + } + + if (count) + buf[count - 1] = '\n'; + + return count; +} +static DEVICE_ATTR_RO(gamepad_mode_index); + +static ssize_t mkeys_function_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + int i, ret = -EINVAL; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + for (i = 0; i < ARRAY_SIZE(claw_mkeys_function_text); i++) { + if (claw_mkeys_function_text[i] && sysfs_streq(buf, claw_mkeys_function_text[i])) { + ret = i; + break; + } + } + if (ret < 0) + return ret; + + ret = claw_switch_mode(hdev, CLAW_FIELD_MKEYS_FUNCTION, ret); + if (ret) + return ret; + + return count; +} + +static ssize_t mkeys_function_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + int ret, i; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_READ_GAMEPAD_MODE, NULL, 0, 25); + if (ret) + return ret; + + scoped_guard(spinlock_irqsave, &drvdata->mode_lock) + i = drvdata->mkeys_function; + + if (i >= ARRAY_SIZE(claw_mkeys_function_text)) + return sysfs_emit(buf, "unsupported\n"); + + return sysfs_emit(buf, "%s\n", claw_mkeys_function_text[i]); +} +static DEVICE_ATTR_RW(mkeys_function); + +static ssize_t mkeys_function_index_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int i, count = 0; + + for (i = 0; i < ARRAY_SIZE(claw_mkeys_function_text); i++) + count += sysfs_emit_at(buf, count, "%s ", claw_mkeys_function_text[i]); + + if (count) + buf[count - 1] = '\n'; + + return count; +} +static DEVICE_ATTR_RO(mkeys_function_index); + +static ssize_t reset_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + bool val; + int ret; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + ret = kstrtobool(buf, &val); + if (ret) + return ret; + + if (!val) + return -EINVAL; + + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_RESET_DEVICE, NULL, 0, 0); + if (ret) + return ret; + + return count; +} +static DEVICE_ATTR_WO(reset); + +static int mkey_mapping_name_to_code(const char *name) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(claw_button_mapping_key_map); i++) { + if (!strcmp(name, claw_button_mapping_key_map[i].name)) + return claw_button_mapping_key_map[i].code; + } + + return -EINVAL; +} + +static const char *mkey_mapping_code_to_name(u8 code) +{ + int i; + + if (code == 0xff) + return NULL; + + for (i = 0; i < ARRAY_SIZE(claw_button_mapping_key_map); i++) { + if (claw_button_mapping_key_map[i].code == code) + return claw_button_mapping_key_map[i].name; + } + + return NULL; +} + +static int claw_mkey_store(struct device *dev, const char *buf, u8 mkey) +{ + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + struct claw_mkey_report report = { {0x01, cpu_to_be16(drvdata->bmap_addr[mkey])}, + 0x07, 0x04, 0x00, {0xff, 0xff, 0xff, 0xff, 0xff} }; + char **raw_keys __free(argv_free) = NULL; + int ret, key_count, i; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + raw_keys = argv_split(GFP_KERNEL, buf, &key_count); + if (!raw_keys) + return -ENOMEM; + + if (key_count > CLAW_KEYS_MAX) + return -EINVAL; + + if (key_count == 0) + goto set_buttons; + + for (i = 0; i < key_count; i++) { + ret = mkey_mapping_name_to_code(raw_keys[i]); + if (ret < 0) + return ret; + + report.codes[i] = ret; + } + +set_buttons: + scoped_guard(mutex, &drvdata->rom_mutex) { + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_WRITE_PROFILE_DATA, + (u8 *)&report, sizeof(report), 25); + if (ret) + return ret; + /* MCU will not send ACK until the USB transaction completes. ACK is sent + * immediately after and will hit the stale state machine, before the next + * command re-arms the state machine. Timeout 0 ensures no deadlock waiting + * for ACK that ill never come. + */ + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_SYNC_TO_ROM, NULL, 0, 0); + } + + return ret; +} + +static int claw_mkey_show(struct device *dev, char *buf, enum claw_key_index m_key) +{ + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + struct claw_mkey_report report = { {0x01, cpu_to_be16(drvdata->bmap_addr[m_key])}, 0x07 }; + int i, ret, count = 0; + const char *name; + u8 *codes; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + codes = (m_key == CLAW_KEY_M1) ? drvdata->m1_codes : drvdata->m2_codes; + + guard(mutex)(&drvdata->profile_mutex); + scoped_guard(spinlock_irqsave, &drvdata->profile_lock) + drvdata->profile_pending = (m_key == CLAW_KEY_M1) ? CLAW_M1_PENDING + : CLAW_M2_PENDING; + + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_READ_PROFILE, + (u8 *)&report, sizeof(report), 25); + if (ret) + return ret; + + for (i = 0; i < CLAW_KEYS_MAX; i++) { + name = mkey_mapping_code_to_name(codes[i]); + if (name) + count += sysfs_emit_at(buf, count, "%s ", name); + } + + if (!count) + return sysfs_emit(buf, "(not set)\n"); + + buf[count - 1] = '\n'; + + return count; +} + +static ssize_t button_m1_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + + ret = claw_mkey_store(dev, buf, CLAW_KEY_M1); + if (ret) + return ret; + + return count; +} + +static ssize_t button_m1_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return claw_mkey_show(dev, buf, CLAW_KEY_M1); +} +static DEVICE_ATTR_RW(button_m1); + +static ssize_t button_m2_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + int ret; + + ret = claw_mkey_store(dev, buf, CLAW_KEY_M2); + if (ret) + return ret; + + return count; +} + +static ssize_t button_m2_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return claw_mkey_show(dev, buf, CLAW_KEY_M2); +} +static DEVICE_ATTR_RW(button_m2); + +static ssize_t button_mapping_options_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int i, count = 0; + + for (i = 0; i < ARRAY_SIZE(claw_button_mapping_key_map); i++) + count += sysfs_emit_at(buf, count, "%s ", claw_button_mapping_key_map[i].name); + + if (count) + buf[count - 1] = '\n'; + + return count; +} +static DEVICE_ATTR_RO(button_mapping_options); + +static ssize_t rumble_intensity_left_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct claw_rumble_report report = { {0x01, cpu_to_be16(rumble_addr[0])}, 0x01 }; + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + u8 val; + int ret; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + ret = kstrtou8(buf, 10, &val); + if (ret) + return ret; + + if (val > 100) + return -EINVAL; + + report.intensity = val; + + guard(mutex)(&drvdata->rom_mutex); + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_WRITE_PROFILE_DATA, + (u8 *)&report, sizeof(report), 25); + if (ret) + return ret; + + /* MCU will not send ACK until the USB transaction completes. ACK is sent + * immediately after and will hit the stale state machine, before the next + * command re-arms the state machine. Timeout 0 ensures no deadlock waiting + * for ACK that ill never come. + */ + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_SYNC_TO_ROM, NULL, 0, 0); + if (ret) + return ret; + + return count; +} + +static ssize_t rumble_intensity_left_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct claw_rumble_report report = { {0x01, cpu_to_be16(rumble_addr[0])}, 0x01 }; + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + int ret; + u8 val; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + guard(mutex)(&drvdata->profile_mutex); + scoped_guard(spinlock_irqsave, &drvdata->profile_lock) + drvdata->profile_pending = CLAW_RUMBLE_LEFT_PENDING; + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_READ_PROFILE, + (u8 *)&report, sizeof(report), 25); + if (ret) + return ret; + + scoped_guard(spinlock_irqsave, &drvdata->rumble_lock) + val = drvdata->rumble_intensity_left; + + return sysfs_emit(buf, "%u\n", val); +} +static DEVICE_ATTR_RW(rumble_intensity_left); + +static ssize_t rumble_intensity_right_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct claw_rumble_report report = { {0x01, cpu_to_be16(rumble_addr[1])}, 0x01 }; + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + u8 val; + int ret; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + ret = kstrtou8(buf, 10, &val); + if (ret) + return ret; + + if (val > 100) + return -EINVAL; + + report.intensity = val; + + guard(mutex)(&drvdata->rom_mutex); + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_WRITE_PROFILE_DATA, + (u8 *)&report, sizeof(report), 25); + if (ret) + return ret; + + /* MCU will not send ACK until the USB transaction completes. ACK is sent + * immediately after and will hit the stale state machine, before the next + * command re-arms the state machine. Timeout 0 ensures no deadlock waiting + * for ACK that ill never come. + */ + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_SYNC_TO_ROM, NULL, 0, 0); + if (ret) + return ret; + + return count; +} + +static ssize_t rumble_intensity_right_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct claw_rumble_report report = { {0x01, cpu_to_be16(rumble_addr[1])}, 0x01 }; + struct hid_device *hdev = to_hid_device(dev); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + int ret; + u8 val; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered)) + return -ENODEV; + } + + guard(mutex)(&drvdata->profile_mutex); + scoped_guard(spinlock_irqsave, &drvdata->profile_lock) + drvdata->profile_pending = CLAW_RUMBLE_RIGHT_PENDING; + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_READ_PROFILE, + (u8 *)&report, sizeof(report), 25); + if (ret) + return ret; + + scoped_guard(spinlock_irqsave, &drvdata->rumble_lock) + val = drvdata->rumble_intensity_right; + + return sysfs_emit(buf, "%u\n", val); +} +static DEVICE_ATTR_RW(rumble_intensity_right); + +static ssize_t rumble_intensity_range_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sysfs_emit(buf, "0-100\n"); +} +static DEVICE_ATTR_RO(rumble_intensity_range); + +static umode_t claw_gamepad_attr_is_visible(struct kobject *kobj, struct attribute *attr, + int n) +{ + struct hid_device *hdev = to_hid_device(kobj_to_dev(kobj)); + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + + if (!drvdata) { + dev_warn(&hdev->dev, + "Failed to get drvdata from kobj. Gamepad attributes are not available.\n"); + return 0; + } + + /* Always show attrs available on all firmware */ + if (attr == &dev_attr_gamepad_mode.attr || + attr == &dev_attr_gamepad_mode_index.attr || + attr == &dev_attr_mkeys_function.attr || + attr == &dev_attr_mkeys_function_index.attr || + attr == &dev_attr_reset.attr) + return attr->mode; + + /* Hide rumble attrs if not supported */ + if (attr == &dev_attr_rumble_intensity_left.attr || + attr == &dev_attr_rumble_intensity_right.attr || + attr == &dev_attr_rumble_intensity_range.attr) + return drvdata->rumble_support ? attr->mode : 0; + + /* Hide button mapping attrs if it isn't supported */ + return drvdata->bmap_support ? attr->mode : 0; +} + +static struct attribute *claw_gamepad_attrs[] = { + &dev_attr_button_m1.attr, + &dev_attr_button_m2.attr, + &dev_attr_button_mapping_options.attr, + &dev_attr_gamepad_mode.attr, + &dev_attr_gamepad_mode_index.attr, + &dev_attr_mkeys_function.attr, + &dev_attr_mkeys_function_index.attr, + &dev_attr_reset.attr, + &dev_attr_rumble_intensity_left.attr, + &dev_attr_rumble_intensity_right.attr, + &dev_attr_rumble_intensity_range.attr, + NULL, +}; + +static const struct attribute_group claw_gamepad_attr_group = { + .attrs = claw_gamepad_attrs, + .is_visible = claw_gamepad_attr_is_visible, +}; + +/* Read RGB config from device */ +static int claw_read_rgb_config(struct hid_device *hdev) +{ + u8 data[4] = { 0x01, 0x00, 0x00, CLAW_RGB_FRAME_OFFSET }; + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + u16 read_addr = drvdata->rgb_addr; + size_t len = ARRAY_SIZE(data); + int ret, i; + + if (!drvdata->rgb_addr) + return -ENODEV; + + /* Loop through all 8 pages of RGB data */ + guard(mutex)(&drvdata->profile_mutex); + for (i = 0; i < CLAW_RGB_MAX_FRAMES; i++) { + scoped_guard(spinlock_irqsave, &drvdata->profile_lock) + drvdata->profile_pending = CLAW_RGB_PENDING; + data[1] = (read_addr >> 8) & 0xff; + data[2] = read_addr & 0x00ff; + ret = claw_hw_output_report(hdev, CLAW_COMMAND_TYPE_READ_PROFILE, data, len, 25); + if (ret) + return ret; + + read_addr += CLAW_RGB_FRAME_OFFSET; + } + + return 0; +} + +/* Send RGB configuration to device */ +static int claw_write_rgb_state(struct claw_drvdata *drvdata) +{ + struct claw_rgb_report report = { {0x01, 0}, CLAW_RGB_FRAME_OFFSET, 0x00, + drvdata->rgb_frame_count, 0x09, drvdata->rgb_speed, + drvdata->led_mc.led_cdev.brightness }; + u16 write_addr = drvdata->rgb_addr; + int f, ret; + + if (!drvdata->rgb_addr) + return -ENODEV; + + if (!drvdata->rgb_frame_count) + return -EINVAL; + + guard(mutex)(&drvdata->rom_mutex); + /* Loop through (up to) 8 pages of RGB data */ + for (f = 0; f < drvdata->rgb_frame_count; f++) { + scoped_guard(spinlock_irqsave, &drvdata->frame_lock) + report.zone_data = drvdata->rgb_frames[f]; + + /* Set the MCU address to write the frame data to */ + report.read_addr = cpu_to_be16(write_addr); + + /* Serialize the rgb_report and write it to MCU */ + ret = claw_hw_output_report(drvdata->hdev, CLAW_COMMAND_TYPE_WRITE_PROFILE_DATA, + (u8 *)&report, sizeof(report), 25); + if (ret) + return ret; + + /* Increment the write addr by the offset for the next frame */ + write_addr += CLAW_RGB_FRAME_OFFSET; + } + + /* MCU will not send ACK until the USB transaction completes. ACK is sent + * immediately after and will hit the stale state machine, before the next + * command re-arms the state machine. Timeout 0 ensures no deadlock waiting + * for ACK that ill never come. + */ + ret = claw_hw_output_report(drvdata->hdev, CLAW_COMMAND_TYPE_SYNC_TO_ROM, NULL, 0, 0); + + return ret; +} + +/* Fill all zones with the same color */ +static void claw_frame_fill_solid(struct rgb_frame *frame, struct rgb_zone zone) +{ + int z; + + for (z = 0; z < CLAW_RGB_ZONES; z++) + frame->zone[z] = zone; +} + +/* Apply solid effect (1 frame, no color) */ +static int claw_apply_disabled(struct claw_drvdata *drvdata) +{ + struct rgb_zone off = { 0x00, 0x00, 0x00}; + + scoped_guard(spinlock_irqsave, &drvdata->frame_lock) { + drvdata->rgb_frame_count = 1; + claw_frame_fill_solid(&drvdata->rgb_frames[0], off); + } + + return claw_write_rgb_state(drvdata); +} + +/* Apply solid effect (1 frame, all zones same color) */ +static int claw_apply_monocolor(struct claw_drvdata *drvdata) +{ + struct mc_subled *subleds = drvdata->led_mc.subled_info; + struct rgb_zone zone = { subleds[0].intensity, subleds[1].intensity, + subleds[2].intensity }; + + scoped_guard(spinlock_irqsave, &drvdata->frame_lock) { + drvdata->rgb_frame_count = 1; + claw_frame_fill_solid(&drvdata->rgb_frames[0], zone); + } + + return claw_write_rgb_state(drvdata); +} + +/* Apply breathe effect (2 frames: color -> off) */ +static int claw_apply_breathe(struct claw_drvdata *drvdata) +{ + struct mc_subled *subleds = drvdata->led_mc.subled_info; + struct rgb_zone zone = { subleds[0].intensity, subleds[1].intensity, + subleds[2].intensity }; + static const struct rgb_zone off = { 0, 0, 0 }; + + scoped_guard(spinlock_irqsave, &drvdata->frame_lock) { + drvdata->rgb_frame_count = 2; + claw_frame_fill_solid(&drvdata->rgb_frames[0], zone); + claw_frame_fill_solid(&drvdata->rgb_frames[1], off); + } + + return claw_write_rgb_state(drvdata); +} + +/* Apply chroma effect (6 frames: rainbow cycle, all zones sync) */ +static int claw_apply_chroma(struct claw_drvdata *drvdata) +{ + static const struct rgb_zone colors[] = { + {255, 0, 0}, /* red */ + {255, 255, 0}, /* yellow */ + { 0, 255, 0}, /* green */ + { 0, 255, 255}, /* cyan */ + { 0, 0, 255}, /* blue */ + {255, 0, 255}, /* magenta */ + }; + u8 frame_count = ARRAY_SIZE(colors); + int f; + + scoped_guard(spinlock_irqsave, &drvdata->frame_lock) { + drvdata->rgb_frame_count = frame_count; + + for (f = 0; f < frame_count; f++) + claw_frame_fill_solid(&drvdata->rgb_frames[f], colors[f]); + } + + return claw_write_rgb_state(drvdata); +} + +/* Apply rainbow effect (4 frames: rotating colors around joysticks) */ +static int claw_apply_rainbow(struct claw_drvdata *drvdata) +{ + static const struct rgb_zone colors[] = { + {255, 0, 0}, /* red */ + { 0, 255, 0}, /* green */ + { 0, 255, 255}, /* cyan */ + { 0, 0, 255}, /* blue */ + }; + u8 frame_count = ARRAY_SIZE(colors); + int f, z; + + scoped_guard(spinlock_irqsave, &drvdata->frame_lock) { + drvdata->rgb_frame_count = frame_count; + + for (f = 0; f < frame_count; f++) { + for (z = 0; z < 4; z++) { + drvdata->rgb_frames[f].zone[z] = colors[(z + f) % 4]; + drvdata->rgb_frames[f].zone[z + 4] = colors[(z + f) % 4]; + } + drvdata->rgb_frames[f].zone[8] = colors[f]; + } + } + + return claw_write_rgb_state(drvdata); +} + +/* + * Apply frostfire effect (4 frames: fire vs ice rotating) + * Right joystick: fire red -> dark -> ice blue -> dark (clockwise) + * Left joystick: ice blue -> dark -> fire red -> dark (counter-clockwise) + * ABXY: fire red -> dark -> ice blue -> dark + */ +static int claw_apply_frostfire(struct claw_drvdata *drvdata) +{ + static const struct rgb_zone colors[] = { + {255, 0, 0}, /* fire red */ + { 0, 0, 0}, /* dark */ + { 0, 0, 255}, /* ice blue */ + { 0, 0, 0}, /* dark */ + }; + u8 frame_count = ARRAY_SIZE(colors); + int f, z; + + scoped_guard(spinlock_irqsave, &drvdata->frame_lock) { + drvdata->rgb_frame_count = frame_count; + + for (f = 0; f < frame_count; f++) { + for (z = 0; z < 4; z++) { + drvdata->rgb_frames[f].zone[z] = colors[(z + f) % 4]; + drvdata->rgb_frames[f].zone[z + 4] = colors[(z - f + 6) % 4]; + } + drvdata->rgb_frames[f].zone[8] = colors[f]; + } + } + + return claw_write_rgb_state(drvdata); +} + +/* Apply current state to device */ +static int claw_apply_rgb_state(struct claw_drvdata *drvdata) +{ + if (!drvdata->rgb_enabled) + return claw_apply_disabled(drvdata); + + switch (drvdata->rgb_effect) { + case CLAW_RGB_EFFECT_MONOCOLOR: + return claw_apply_monocolor(drvdata); + case CLAW_RGB_EFFECT_BREATHE: + return claw_apply_breathe(drvdata); + case CLAW_RGB_EFFECT_CHROMA: + return claw_apply_chroma(drvdata); + case CLAW_RGB_EFFECT_RAINBOW: + return claw_apply_rainbow(drvdata); + case CLAW_RGB_EFFECT_FROSTFIRE: + return claw_apply_frostfire(drvdata); + default: + dev_err(&drvdata->hdev->dev, "No supported rgb_effect selected\n"); + return -EINVAL; + } +} + +static void claw_rgb_queue_fn(struct work_struct *work) +{ + struct delayed_work *dwork = container_of(work, struct delayed_work, work); + struct claw_drvdata *drvdata = container_of(dwork, struct claw_drvdata, rgb_queue); + int ret; + + if (!drvdata) + return; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->rgb_registered)) + return; + } + + ret = claw_apply_rgb_state(drvdata); + if (ret) + dev_err(&drvdata->hdev->dev, "Failed to apply RGB state: %d\n", ret); +} + +static ssize_t effect_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct led_classdev_mc *led_mc = container_of(led_cdev, struct led_classdev_mc, led_cdev); + struct claw_drvdata *drvdata = container_of(led_mc, struct claw_drvdata, led_mc); + int ret; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->rgb_registered)) + return -ENODEV; + } + + ret = sysfs_match_string(claw_rgb_effect_text, buf); + if (ret < 0) + return ret; + + scoped_guard(spinlock_irqsave, &drvdata->profile_lock) + drvdata->rgb_effect = ret; + + mod_delayed_work(system_wq, &drvdata->rgb_queue, msecs_to_jiffies(50)); + + return count; +} + +static ssize_t effect_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct led_classdev_mc *led_mc = container_of(led_cdev, struct led_classdev_mc, led_cdev); + struct claw_drvdata *drvdata = container_of(led_mc, struct claw_drvdata, led_mc); + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->rgb_registered)) + return -ENODEV; + } + + if (drvdata->rgb_effect >= ARRAY_SIZE(claw_rgb_effect_text)) + return -EINVAL; + + return sysfs_emit(buf, "%s\n", claw_rgb_effect_text[drvdata->rgb_effect]); +} + +static DEVICE_ATTR_RW(effect); + +static ssize_t effect_index_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int i, count = 0; + + for (i = 0; i < ARRAY_SIZE(claw_rgb_effect_text); i++) + count += sysfs_emit_at(buf, count, "%s ", claw_rgb_effect_text[i]); + + if (count) + buf[count - 1] = '\n'; + + return count; +} +static DEVICE_ATTR_RO(effect_index); + +static ssize_t enabled_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct led_classdev_mc *led_mc = container_of(led_cdev, struct led_classdev_mc, led_cdev); + struct claw_drvdata *drvdata = container_of(led_mc, struct claw_drvdata, led_mc); + bool val; + int ret; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->rgb_registered)) + return -ENODEV; + } + + ret = kstrtobool(buf, &val); + if (ret) + return ret; + + scoped_guard(spinlock_irqsave, &drvdata->profile_lock) + drvdata->rgb_enabled = val; + + mod_delayed_work(system_wq, &drvdata->rgb_queue, msecs_to_jiffies(50)); + + return count; +} + +static ssize_t enabled_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct led_classdev_mc *led_mc = container_of(led_cdev, struct led_classdev_mc, led_cdev); + struct claw_drvdata *drvdata = container_of(led_mc, struct claw_drvdata, led_mc); + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->rgb_registered)) + return -ENODEV; + } + + return sysfs_emit(buf, "%s\n", drvdata->rgb_enabled ? "true" : "false"); +} +static DEVICE_ATTR_RW(enabled); + +static ssize_t enabled_index_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "true false\n"); +} +static DEVICE_ATTR_RO(enabled_index); + +static ssize_t speed_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct led_classdev_mc *led_mc = container_of(led_cdev, struct led_classdev_mc, led_cdev); + struct claw_drvdata *drvdata = container_of(led_mc, struct claw_drvdata, led_mc); + unsigned int val, speed; + int ret; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->rgb_registered)) + return -ENODEV; + } + + ret = kstrtouint(buf, 10, &val); + if (ret) + return ret; + + if (val > 20) + return -EINVAL; + + /* 0 is fastest, invert value for intuitive userspace speed */ + speed = 20 - val; + + scoped_guard(spinlock_irqsave, &drvdata->profile_lock) + drvdata->rgb_speed = speed; + + mod_delayed_work(system_wq, &drvdata->rgb_queue, msecs_to_jiffies(50)); + + return count; +} + +static ssize_t speed_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct led_classdev_mc *led_mc = container_of(led_cdev, struct led_classdev_mc, led_cdev); + struct claw_drvdata *drvdata = container_of(led_mc, struct claw_drvdata, led_mc); + u8 speed = 20 - drvdata->rgb_speed; + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->rgb_registered)) + return -ENODEV; + } + + return sysfs_emit(buf, "%u\n", speed); +} +static DEVICE_ATTR_RW(speed); + +static ssize_t speed_range_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "0-20\n"); +} +static DEVICE_ATTR_RO(speed_range); + +static void claw_led_brightness_set(struct led_classdev *led_cdev, + enum led_brightness _brightness) +{ + struct led_classdev_mc *led_mc = container_of(led_cdev, struct led_classdev_mc, led_cdev); + struct claw_drvdata *drvdata = container_of(led_mc, struct claw_drvdata, led_mc); + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->rgb_registered)) + return; + } + + mod_delayed_work(system_wq, &drvdata->rgb_queue, msecs_to_jiffies(50)); +} + +static struct attribute *claw_rgb_attrs[] = { + &dev_attr_effect.attr, + &dev_attr_effect_index.attr, + &dev_attr_enabled.attr, + &dev_attr_enabled_index.attr, + &dev_attr_speed.attr, + &dev_attr_speed_range.attr, + NULL, +}; + +static const struct attribute_group claw_rgb_attr_group = { + .attrs = claw_rgb_attrs, +}; + +static struct mc_subled claw_rgb_subled_info[] = { + { + .color_index = LED_COLOR_ID_RED, + .channel = 0x1, + }, + { + .color_index = LED_COLOR_ID_GREEN, + .channel = 0x2, + }, + { + .color_index = LED_COLOR_ID_BLUE, + .channel = 0x3, + }, +}; + +static void cfg_setup_fn(struct work_struct *work) +{ + struct delayed_work *dwork = container_of(work, struct delayed_work, work); + struct claw_drvdata *drvdata = container_of(dwork, struct claw_drvdata, cfg_setup); + bool gamepad_ready = false, rgb_ready = false, gp_registered, rgb_registered; + int ret; + + ret = claw_hw_output_report(drvdata->hdev, CLAW_COMMAND_TYPE_READ_GAMEPAD_MODE, + NULL, 0, 25); + if (ret) { + dev_err(&drvdata->hdev->dev, + "Failed to read gamepad mode: %d\n", ret); + goto prep_rgb; + } + gamepad_ready = true; + +prep_rgb: + ret = claw_read_rgb_config(drvdata->hdev); + if (ret) { + dev_err(&drvdata->hdev->dev, + "Failed to read RGB config: %d\n", ret); + goto try_gamepad; + } + rgb_ready = true; + + /* Add sysfs attributes after we get the device state */ +try_gamepad: + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) + /* Pairs with smp_store_release from below */ + gp_registered = smp_load_acquire(&drvdata->gp_registered); + + if (!gp_registered && gamepad_ready) { + ret = device_add_group(&drvdata->hdev->dev, &claw_gamepad_attr_group); + if (ret) { + dev_err(&drvdata->hdev->dev, + "Failed to create gamepad attrs: %d\n", ret); + goto try_rgb; + } + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_load_acquire in attribute show/store functions */ + smp_store_release(&drvdata->gp_registered, true); + gp_registered = true; + } + } + +try_rgb: + /* Add and enable RGB interface once we have the device state */ + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) + /* Pairs with smp_store_release from below */ + rgb_registered = smp_load_acquire(&drvdata->rgb_registered); + + if (!rgb_registered && rgb_ready) { + ret = led_classdev_multicolor_register(&drvdata->hdev->dev, + &drvdata->led_mc); + if (ret) { + dev_err(&drvdata->hdev->dev, "Failed to create led device: %d\n", ret); + goto update_kobjects; + } + + ret = device_add_group(drvdata->led_mc.led_cdev.dev, &claw_rgb_attr_group); + if (ret) { + dev_err(&drvdata->hdev->dev, "Failed to create RGB attrs: %d\n", ret); + led_classdev_multicolor_unregister(&drvdata->led_mc); + goto update_kobjects; + } + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_load_acquire in attribute show/store functions */ + smp_store_release(&drvdata->rgb_registered, true); + rgb_registered = true; + } + } + +update_kobjects: + if (gp_registered) + kobject_uevent(&drvdata->hdev->dev.kobj, KOBJ_CHANGE); + if (rgb_registered) + kobject_uevent(&drvdata->led_mc.led_cdev.dev->kobj, KOBJ_CHANGE); +} + +static void cfg_resume_fn(struct work_struct *work) +{ + struct delayed_work *dwork = container_of(work, struct delayed_work, work); + struct claw_drvdata *drvdata = container_of(dwork, struct claw_drvdata, cfg_resume); + + guard(spinlock_irqsave)(&drvdata->registration_lock); + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + if (!smp_load_acquire(&drvdata->gp_registered) || + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + !smp_load_acquire(&drvdata->rgb_registered)) + schedule_delayed_work(&drvdata->cfg_setup, msecs_to_jiffies(500)); +} + +static void claw_features_supported(struct claw_drvdata *drvdata) +{ + u8 major = (drvdata->bcd_device >> 8) & 0xff; + u8 minor = drvdata->bcd_device & 0xff; + + if (major == 0x01) { + drvdata->bmap_support = true; + if (minor >= 0x66) { + drvdata->bmap_addr = button_mapping_addr_new; + drvdata->rumble_support = true; + drvdata->rgb_addr = rgb_addr_new; + } else { + drvdata->bmap_addr = button_mapping_addr_old; + drvdata->rgb_addr = rgb_addr_old; + } + return; + } + + if ((major == 0x02 && minor >= 0x17) || major >= 0x03) { + drvdata->bmap_support = true; + drvdata->bmap_addr = button_mapping_addr_new; + drvdata->rumble_support = true; + drvdata->rgb_addr = rgb_addr_new; + return; + } + + drvdata->rgb_addr = rgb_addr_old; +} + +static int claw_probe(struct hid_device *hdev, u8 ep) +{ + struct usb_interface *intf = to_usb_interface(hdev->dev.parent); + struct usb_device *udev = interface_to_usbdev(intf); + struct claw_drvdata *drvdata; + int ret; + + drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL); + if (!drvdata) + return -ENOMEM; + + drvdata->gamepad_mode = CLAW_GAMEPAD_MODE_XINPUT; + drvdata->rgb_enabled = true; + drvdata->hdev = hdev; + drvdata->ep = ep; + + /* Determine feature level from firmware version */ + drvdata->bcd_device = le16_to_cpu(udev->descriptor.bcdDevice); + claw_features_supported(drvdata); + + if (!drvdata->bmap_support) + dev_dbg(&hdev->dev, "M-Key mapping is not supported. Update firmware to enable.\n"); + + /* Device is hardwired and name is guaranteed to be unique */ + drvdata->led_mc.led_cdev.name = "msi_claw:rgb:joystick_rings"; + drvdata->led_mc.led_cdev.brightness = 0x50; + drvdata->led_mc.led_cdev.max_brightness = 0x64; + drvdata->led_mc.led_cdev.color = LED_COLOR_ID_RGB; + drvdata->led_mc.led_cdev.brightness_set = claw_led_brightness_set; + drvdata->led_mc.num_colors = 3; + drvdata->led_mc.subled_info = devm_kmemdup(&hdev->dev, claw_rgb_subled_info, + sizeof(claw_rgb_subled_info), GFP_KERNEL); + if (!drvdata->led_mc.subled_info) + return -ENOMEM; + + mutex_init(&drvdata->cfg_mutex); + mutex_init(&drvdata->profile_mutex); + mutex_init(&drvdata->rom_mutex); + spin_lock_init(&drvdata->registration_lock); + spin_lock_init(&drvdata->cmd_lock); + spin_lock_init(&drvdata->mode_lock); + spin_lock_init(&drvdata->profile_lock); + spin_lock_init(&drvdata->frame_lock); + spin_lock_init(&drvdata->rumble_lock); + init_completion(&drvdata->orphan_ack_complete); + init_completion(&drvdata->send_cmd_complete); + INIT_DELAYED_WORK(&drvdata->cfg_resume, &cfg_resume_fn); + INIT_DELAYED_WORK(&drvdata->cfg_setup, &cfg_setup_fn); + INIT_DELAYED_WORK(&drvdata->rgb_queue, &claw_rgb_queue_fn); + + /* For control interface: open the HID transport for sending commands. */ + ret = hid_hw_open(hdev); + if (ret) + return ret; + + hid_set_drvdata(hdev, drvdata); + schedule_delayed_work(&drvdata->cfg_setup, msecs_to_jiffies(500)); + + return 0; +} + +static int msi_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + int ret; + u8 ep; + + if (!hid_is_usb(hdev)) { + ret = -ENODEV; + goto err_probe; + } + + ret = hid_parse(hdev); + if (ret) + goto err_probe; + + /* Set quirk to create separate input devices per HID application */ + hdev->quirks |= HID_QUIRK_INPUT_PER_APP | HID_QUIRK_MULTI_INPUT; + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + if (ret) + goto err_probe; + + /* For non-control interfaces (keyboard/mouse), allow userspace to grab the devices. */ + ret = get_endpoint_address(hdev); + if (ret < 0) + goto err_stop_hw; + + ep = ret; + if (ep == CLAW_XINPUT_CFG_INTF_IN || ep == CLAW_DINPUT_CFG_INTF_IN) { + ret = claw_probe(hdev, ep); + if (ret) + goto err_stop_hw; + } + + return 0; + +err_stop_hw: + hid_hw_stop(hdev); +err_probe: + return dev_err_probe(&hdev->dev, ret, "Failed to init device\n"); +} + +static void claw_remove(struct hid_device *hdev) +{ + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + bool gp_registered; + bool rgb_registered; + + if (!drvdata) + return; + + cancel_delayed_work_sync(&drvdata->cfg_resume); + cancel_delayed_work_sync(&drvdata->cfg_setup); + + scoped_guard(spinlock_irqsave, &drvdata->registration_lock) { + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + gp_registered = smp_load_acquire(&drvdata->gp_registered); + /* Pairs with smp_load_acquire in attribute show/store functions */ + smp_store_release(&drvdata->gp_registered, false); + /* Pairs with smp_store_release from cfg_setup_fn in system_wq context */ + rgb_registered = smp_load_acquire(&drvdata->rgb_registered); + /* Pairs with smp_load_acquire in attribute show/store functions */ + smp_store_release(&drvdata->rgb_registered, false); + } + + if (gp_registered) + device_remove_group(&hdev->dev, &claw_gamepad_attr_group); + + if (rgb_registered) { + device_remove_group(drvdata->led_mc.led_cdev.dev, &claw_rgb_attr_group); + led_classdev_multicolor_unregister(&drvdata->led_mc); + } + cancel_delayed_work_sync(&drvdata->rgb_queue); + + hid_hw_close(hdev); +} + +static void msi_remove(struct hid_device *hdev) +{ + int ret; + u8 ep; + + /* Safe assumption. SET_INTERFACE ioctl can't be used while driver is bound */ + ret = get_endpoint_address(hdev); + if (ret <= 0) + goto hw_stop; + + ep = ret; + if (ep == CLAW_XINPUT_CFG_INTF_IN || ep == CLAW_DINPUT_CFG_INTF_IN) + claw_remove(hdev); + +hw_stop: + hid_hw_stop(hdev); +} + +static int claw_resume(struct hid_device *hdev) +{ + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + + if (!drvdata) + return -ENODEV; + + /* MCU can take up to 500ms to be ready after resume */ + schedule_delayed_work(&drvdata->cfg_resume, msecs_to_jiffies(500)); + return 0; +} + +static int msi_resume(struct hid_device *hdev) +{ + int ret; + u8 ep; + + /* Safe assumption. SET_INTERFACE ioctl can't be used while driver is bound */ + ret = get_endpoint_address(hdev); + if (ret <= 0) + return 0; + + ep = ret; + if (ep == CLAW_XINPUT_CFG_INTF_IN || ep == CLAW_DINPUT_CFG_INTF_IN) + return claw_resume(hdev); + + return 0; +} + +static int claw_suspend(struct hid_device *hdev) +{ + struct claw_drvdata *drvdata = hid_get_drvdata(hdev); + + if (!drvdata) + return -ENODEV; + + cancel_delayed_work_sync(&drvdata->cfg_resume); + cancel_delayed_work_sync(&drvdata->cfg_setup); + cancel_delayed_work_sync(&drvdata->rgb_queue); + + return 0; +} + +static int msi_suspend(struct hid_device *hdev, pm_message_t msg) +{ + int ret; + u8 ep; + + /* Safe assumption. SET_INTERFACE ioctl can't be used while driver is bound */ + ret = get_endpoint_address(hdev); + if (ret <= 0) + return 0; + + ep = ret; + if (ep == CLAW_XINPUT_CFG_INTF_IN || ep == CLAW_DINPUT_CFG_INTF_IN) + return claw_suspend(hdev); + + return 0; +} + +static const struct hid_device_id msi_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_MSI_2, USB_DEVICE_ID_MSI_CLAW_XINPUT) }, + { HID_USB_DEVICE(USB_VENDOR_ID_MSI_2, USB_DEVICE_ID_MSI_CLAW_DINPUT) }, + { HID_USB_DEVICE(USB_VENDOR_ID_MSI_2, USB_DEVICE_ID_MSI_CLAW_DESKTOP) }, + { HID_USB_DEVICE(USB_VENDOR_ID_MSI_2, USB_DEVICE_ID_MSI_CLAW_BIOS) }, + { } +}; +MODULE_DEVICE_TABLE(hid, msi_devices); + +static struct hid_driver msi_driver = { + .name = "hid-msi", + .id_table = msi_devices, + .raw_event = msi_raw_event, + .probe = msi_probe, + .remove = msi_remove, + .resume = pm_ptr(msi_resume), + .suspend = pm_ptr(msi_suspend), +}; +module_hid_driver(msi_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Denis Benato <denis.benato@linux.dev>"); +MODULE_AUTHOR("Zhouwang Huang <honjow311@gmail.com>"); +MODULE_AUTHOR("Derek J. Clark <derekjohn.clark@gmail.com>"); +MODULE_DESCRIPTION("HID driver for MSI Claw Handheld PC gamepads"); |