From 9ba9498bff1a3ae6e8661b423453e319af57fc3c Mon Sep 17 00:00:00 2001 From: Vicki Pfau Date: Wed, 25 Jan 2023 19:01:25 -0800 Subject: HID: hid-steam: Add Steam Deck support Add preliminary support for the Steam Deck's controller interface. Currently, this only supports the controller inputs and toggling lizard mode (Valve's name for a hardware kb/m emulation mode). It does not support any of the advanced features, such as the motion sensors or force-feedback. The Steam Deck also includes a heartbeat for lizard mode that switches it back on if no reports have been received within a few milliseconds. The official Steam client handles this by sending a handful of configuration reports every few ms, so we copy this behavior by sending configuration reports to disable the mouse and reset the digital mappings every 5ms. As this isn't needed for the older Steam Controller, this is only done on the Steam Deck. Signed-off-by: Vicki Pfau Reviewed-by: Lyude Paul Link: https://lore.kernel.org/r/20230126030126.895670-2-vi@endrift.com Signed-off-by: Benjamin Tissoires --- drivers/hid/Kconfig | 4 +- drivers/hid/hid-ids.h | 1 + drivers/hid/hid-steam.c | 329 ++++++++++++++++++++++++++++++++++++++++++++---- 3 files changed, 306 insertions(+), 28 deletions(-) diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index e2a5d30c8895..20402d0a7eab 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -1018,10 +1018,10 @@ config HID_SPEEDLINK Support for Speedlink Vicious and Divine Cezanne mouse. config HID_STEAM - tristate "Steam Controller support" + tristate "Steam Controller/Deck support" select POWER_SUPPLY help - Say Y here if you have a Steam Controller if you want to use it + Say Y here if you have a Steam Controller or Deck if you want to use it without running the Steam Client. It supports both the wired and the wireless adaptor. diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 0f8c11842a3a..1209f0665bbe 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -1182,6 +1182,7 @@ #define USB_VENDOR_ID_VALVE 0x28de #define USB_DEVICE_ID_STEAM_CONTROLLER 0x1102 #define USB_DEVICE_ID_STEAM_CONTROLLER_WIRELESS 0x1142 +#define USB_DEVICE_ID_STEAM_DECK 0x1205 #define USB_VENDOR_ID_STEELSERIES 0x1038 #define USB_DEVICE_ID_STEELSERIES_SRWS1 0x1410 diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c index 8ee43cb225fc..09330d9bfee3 100644 --- a/drivers/hid/hid-steam.c +++ b/drivers/hid/hid-steam.c @@ -3,6 +3,7 @@ * HID driver for Valve Steam Controller * * Copyright (c) 2018 Rodrigo Rivas Costa + * Copyright (c) 2022 Valve Software * * Supports both the wired and wireless interfaces. * @@ -53,6 +54,7 @@ static DEFINE_MUTEX(steam_devices_lock); static LIST_HEAD(steam_devices); #define STEAM_QUIRK_WIRELESS BIT(0) +#define STEAM_QUIRK_DECK BIT(1) /* Touch pads are 40 mm in diameter and 65535 units */ #define STEAM_PAD_RESOLUTION 1638 @@ -60,6 +62,10 @@ static LIST_HEAD(steam_devices); #define STEAM_TRIGGER_RESOLUTION 51 /* Joystick runs are about 5 mm and 256 units */ #define STEAM_JOYSTICK_RESOLUTION 51 +/* Trigger runs are about 6 mm and 32768 units */ +#define STEAM_DECK_TRIGGER_RESOLUTION 5461 +/* Joystick runs are about 5 mm and 32768 units */ +#define STEAM_DECK_JOYSTICK_RESOLUTION 6553 #define STEAM_PAD_FUZZ 256 @@ -92,11 +98,14 @@ static LIST_HEAD(steam_devices); #define STEAM_REG_RPAD_MARGIN 0x18 #define STEAM_REG_LED 0x2d #define STEAM_REG_GYRO_MODE 0x30 +#define STEAM_REG_LPAD_CLICK_PRESSURE 0x34 +#define STEAM_REG_RPAD_CLICK_PRESSURE 0x35 /* Raw event identifiers */ #define STEAM_EV_INPUT_DATA 0x01 #define STEAM_EV_CONNECT 0x03 #define STEAM_EV_BATTERY 0x04 +#define STEAM_EV_DECK_INPUT_DATA 0x09 /* Values for GYRO_MODE (bitmask) */ #define STEAM_GYRO_MODE_OFF 0x0000 @@ -124,6 +133,7 @@ struct steam_device { struct power_supply __rcu *battery; u8 battery_charge; u16 voltage; + struct delayed_work heartbeat; }; static int steam_recv_report(struct steam_device *steam, @@ -193,7 +203,7 @@ static int steam_send_report(struct steam_device *steam, */ do { ret = hid_hw_raw_request(steam->hdev, 0, - buf, size + 1, + buf, max(size, 64) + 1, HID_FEATURE_REPORT, HID_REQ_SET_REPORT); if (ret != -EPIPE) break; @@ -219,6 +229,7 @@ static int steam_write_registers(struct steam_device *steam, u8 reg; u16 val; u8 cmd[64] = {STEAM_CMD_WRITE_REGISTER, 0x00}; + int ret; va_list args; va_start(args, steam); @@ -234,7 +245,16 @@ static int steam_write_registers(struct steam_device *steam, } va_end(args); - return steam_send_report(steam, cmd, 2 + cmd[1]); + ret = steam_send_report(steam, cmd, 2 + cmd[1]); + if (ret < 0) + return ret; + + /* + * Sometimes a lingering report for this command can + * get read back instead of the last set report if + * this isn't explicitly queried + */ + return steam_recv_report(steam, cmd, 2 + cmd[1]); } static int steam_get_serial(struct steam_device *steam) @@ -280,13 +300,33 @@ static void steam_set_lizard_mode(struct steam_device *steam, bool enable) steam_write_registers(steam, STEAM_REG_RPAD_MARGIN, 0x01, /* enable margin */ 0); + + cancel_delayed_work_sync(&steam->heartbeat); } else { /* disable esc, enter, cursor */ steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS); - steam_write_registers(steam, - STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */ - STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */ - 0); + + if (steam->quirks & STEAM_QUIRK_DECK) { + steam_write_registers(steam, + STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */ + STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */ + STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */ + STEAM_REG_LPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */ + STEAM_REG_RPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */ + 0); + /* + * The Steam Deck has a watchdog that automatically enables + * lizard mode if it doesn't see any traffic for too long + */ + if (!work_busy(&steam->heartbeat.work)) + schedule_delayed_work(&steam->heartbeat, 5 * HZ); + } else { + steam_write_registers(steam, + STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */ + STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */ + STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */ + 0); + } } } @@ -413,8 +453,8 @@ static int steam_input_register(struct steam_device *steam) input->open = steam_input_open; input->close = steam_input_close; - input->name = (steam->quirks & STEAM_QUIRK_WIRELESS) ? - "Wireless Steam Controller" : + input->name = (steam->quirks & STEAM_QUIRK_WIRELESS) ? "Wireless Steam Controller" : + (steam->quirks & STEAM_QUIRK_DECK) ? "Steam Deck" : "Steam Controller"; input->phys = hdev->phys; input->uniq = steam->serial_no; @@ -438,33 +478,67 @@ static int steam_input_register(struct steam_device *steam) input_set_capability(input, EV_KEY, BTN_SELECT); input_set_capability(input, EV_KEY, BTN_MODE); input_set_capability(input, EV_KEY, BTN_START); - input_set_capability(input, EV_KEY, BTN_GEAR_DOWN); - input_set_capability(input, EV_KEY, BTN_GEAR_UP); input_set_capability(input, EV_KEY, BTN_THUMBR); input_set_capability(input, EV_KEY, BTN_THUMBL); input_set_capability(input, EV_KEY, BTN_THUMB); input_set_capability(input, EV_KEY, BTN_THUMB2); + if (steam->quirks & STEAM_QUIRK_DECK) { + input_set_capability(input, EV_KEY, BTN_BASE); + input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY1); + input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY2); + input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY3); + input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY4); + } else { + input_set_capability(input, EV_KEY, BTN_GEAR_DOWN); + input_set_capability(input, EV_KEY, BTN_GEAR_UP); + } - input_set_abs_params(input, ABS_HAT2Y, 0, 255, 0, 0); - input_set_abs_params(input, ABS_HAT2X, 0, 255, 0, 0); input_set_abs_params(input, ABS_X, -32767, 32767, 0, 0); input_set_abs_params(input, ABS_Y, -32767, 32767, 0, 0); - input_set_abs_params(input, ABS_RX, -32767, 32767, - STEAM_PAD_FUZZ, 0); - input_set_abs_params(input, ABS_RY, -32767, 32767, - STEAM_PAD_FUZZ, 0); + input_set_abs_params(input, ABS_HAT0X, -32767, 32767, STEAM_PAD_FUZZ, 0); input_set_abs_params(input, ABS_HAT0Y, -32767, 32767, STEAM_PAD_FUZZ, 0); - input_abs_set_res(input, ABS_X, STEAM_JOYSTICK_RESOLUTION); - input_abs_set_res(input, ABS_Y, STEAM_JOYSTICK_RESOLUTION); - input_abs_set_res(input, ABS_RX, STEAM_PAD_RESOLUTION); - input_abs_set_res(input, ABS_RY, STEAM_PAD_RESOLUTION); + + if (steam->quirks & STEAM_QUIRK_DECK) { + input_set_abs_params(input, ABS_HAT2Y, 0, 32767, 0, 0); + input_set_abs_params(input, ABS_HAT2X, 0, 32767, 0, 0); + + input_set_abs_params(input, ABS_RX, -32767, 32767, 0, 0); + input_set_abs_params(input, ABS_RY, -32767, 32767, 0, 0); + + input_set_abs_params(input, ABS_HAT1X, -32767, 32767, + STEAM_PAD_FUZZ, 0); + input_set_abs_params(input, ABS_HAT1Y, -32767, 32767, + STEAM_PAD_FUZZ, 0); + + input_abs_set_res(input, ABS_X, STEAM_DECK_JOYSTICK_RESOLUTION); + input_abs_set_res(input, ABS_Y, STEAM_DECK_JOYSTICK_RESOLUTION); + input_abs_set_res(input, ABS_RX, STEAM_DECK_JOYSTICK_RESOLUTION); + input_abs_set_res(input, ABS_RY, STEAM_DECK_JOYSTICK_RESOLUTION); + input_abs_set_res(input, ABS_HAT1X, STEAM_PAD_RESOLUTION); + input_abs_set_res(input, ABS_HAT1Y, STEAM_PAD_RESOLUTION); + input_abs_set_res(input, ABS_HAT2Y, STEAM_DECK_TRIGGER_RESOLUTION); + input_abs_set_res(input, ABS_HAT2X, STEAM_DECK_TRIGGER_RESOLUTION); + } else { + input_set_abs_params(input, ABS_HAT2Y, 0, 255, 0, 0); + input_set_abs_params(input, ABS_HAT2X, 0, 255, 0, 0); + + input_set_abs_params(input, ABS_RX, -32767, 32767, + STEAM_PAD_FUZZ, 0); + input_set_abs_params(input, ABS_RY, -32767, 32767, + STEAM_PAD_FUZZ, 0); + + input_abs_set_res(input, ABS_X, STEAM_JOYSTICK_RESOLUTION); + input_abs_set_res(input, ABS_Y, STEAM_JOYSTICK_RESOLUTION); + input_abs_set_res(input, ABS_RX, STEAM_PAD_RESOLUTION); + input_abs_set_res(input, ABS_RY, STEAM_PAD_RESOLUTION); + input_abs_set_res(input, ABS_HAT2Y, STEAM_TRIGGER_RESOLUTION); + input_abs_set_res(input, ABS_HAT2X, STEAM_TRIGGER_RESOLUTION); + } input_abs_set_res(input, ABS_HAT0X, STEAM_PAD_RESOLUTION); input_abs_set_res(input, ABS_HAT0Y, STEAM_PAD_RESOLUTION); - input_abs_set_res(input, ABS_HAT2Y, STEAM_TRIGGER_RESOLUTION); - input_abs_set_res(input, ABS_HAT2X, STEAM_TRIGGER_RESOLUTION); ret = input_register_device(input); if (ret) @@ -612,6 +686,22 @@ static bool steam_is_valve_interface(struct hid_device *hdev) return !list_empty(&rep_enum->report_list); } +static void steam_lizard_mode_heartbeat(struct work_struct *work) +{ + struct steam_device *steam = container_of(work, struct steam_device, + heartbeat.work); + + mutex_lock(&steam->mutex); + if (!steam->client_opened && steam->client_hdev) { + steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS); + steam_write_registers(steam, + STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */ + 0); + schedule_delayed_work(&steam->heartbeat, 5 * HZ); + } + mutex_unlock(&steam->mutex); +} + static int steam_client_ll_parse(struct hid_device *hdev) { struct steam_device *steam = hdev->driver_data; @@ -750,6 +840,7 @@ static int steam_probe(struct hid_device *hdev, steam->quirks = id->driver_data; INIT_WORK(&steam->work_connect, steam_work_connect_cb); INIT_LIST_HEAD(&steam->list); + INIT_DEFERRABLE_WORK(&steam->heartbeat, steam_lizard_mode_heartbeat); steam->client_hdev = steam_create_client_hid(hdev); if (IS_ERR(steam->client_hdev)) { @@ -805,6 +896,7 @@ hid_hw_start_fail: hid_destroy_device(steam->client_hdev); client_hdev_fail: cancel_work_sync(&steam->work_connect); + cancel_delayed_work_sync(&steam->heartbeat); steam_alloc_fail: hid_err(hdev, "%s: failed with error %d\n", __func__, ret); @@ -821,7 +913,11 @@ static void steam_remove(struct hid_device *hdev) } hid_destroy_device(steam->client_hdev); + mutex_lock(&steam->mutex); + steam->client_hdev = NULL; steam->client_opened = false; + cancel_delayed_work_sync(&steam->heartbeat); + mutex_unlock(&steam->mutex); cancel_work_sync(&steam->work_connect); if (steam->quirks & STEAM_QUIRK_WIRELESS) { hid_info(hdev, "Steam wireless receiver disconnected"); @@ -906,10 +1002,10 @@ static inline s16 steam_le16(u8 *data) * 8.5 | BTN_B | button B * 8.6 | BTN_X | button X * 8.7 | BTN_A | button A - * 9.0 | BTN_DPAD_UP | lef-pad up - * 9.1 | BTN_DPAD_RIGHT | lef-pad right - * 9.2 | BTN_DPAD_LEFT | lef-pad left - * 9.3 | BTN_DPAD_DOWN | lef-pad down + * 9.0 | BTN_DPAD_UP | left-pad up + * 9.1 | BTN_DPAD_RIGHT | left-pad right + * 9.2 | BTN_DPAD_LEFT | left-pad left + * 9.3 | BTN_DPAD_DOWN | left-pad down * 9.4 | BTN_SELECT | menu left * 9.5 | BTN_MODE | steam logo * 9.6 | BTN_START | menu right @@ -993,6 +1089,172 @@ static void steam_do_input_event(struct steam_device *steam, input_sync(input); } +/* + * The size for this message payload is 56. + * The known values are: + * Offset| Type | Mapped to |Meaning + * -------+-------+-----------+-------------------------- + * 4-7 | u32 | -- | sequence number + * 8-15 | u64 | see below | buttons + * 16-17 | s16 | ABS_HAT0X | left-pad X value + * 18-19 | s16 | ABS_HAT0Y | left-pad Y value + * 20-21 | s16 | ABS_HAT1X | right-pad X value + * 22-23 | s16 | ABS_HAT1Y | right-pad Y value + * 24-25 | s16 | -- | accelerometer X value + * 26-27 | s16 | -- | accelerometer Y value + * 28-29 | s16 | -- | accelerometer Z value + * 30-31 | s16 | -- | gyro X value + * 32-33 | s16 | -- | gyro Y value + * 34-35 | s16 | -- | gyro Z value + * 36-37 | s16 | -- | quaternion W value + * 38-39 | s16 | -- | quaternion X value + * 40-41 | s16 | -- | quaternion Y value + * 42-43 | s16 | -- | quaternion Z value + * 44-45 | u16 | ABS_HAT2Y | left trigger (uncalibrated) + * 46-47 | u16 | ABS_HAT2X | right trigger (uncalibrated) + * 48-49 | s16 | ABS_X | left joystick X + * 50-51 | s16 | ABS_Y | left joystick Y + * 52-53 | s16 | ABS_RX | right joystick X + * 54-55 | s16 | ABS_RY | right joystick Y + * 56-57 | u16 | -- | left pad pressure + * 58-59 | u16 | -- | right pad pressure + * + * The buttons are: + * Bit | Mapped to | Description + * ------+------------+-------------------------------- + * 8.0 | BTN_TR2 | right trigger fully pressed + * 8.1 | BTN_TL2 | left trigger fully pressed + * 8.2 | BTN_TR | right shoulder + * 8.3 | BTN_TL | left shoulder + * 8.4 | BTN_Y | button Y + * 8.5 | BTN_B | button B + * 8.6 | BTN_X | button X + * 8.7 | BTN_A | button A + * 9.0 | BTN_DPAD_UP | left-pad up + * 9.1 | BTN_DPAD_RIGHT | left-pad right + * 9.2 | BTN_DPAD_LEFT | left-pad left + * 9.3 | BTN_DPAD_DOWN | left-pad down + * 9.4 | BTN_SELECT | menu left + * 9.5 | BTN_MODE | steam logo + * 9.6 | BTN_START | menu right + * 9.7 | BTN_TRIGGER_HAPPY3 | left bottom grip button + * 10.0 | BTN_TRIGGER_HAPPY4 | right bottom grip button + * 10.1 | BTN_THUMB | left pad pressed + * 10.2 | BTN_THUMB2 | right pad pressed + * 10.3 | -- | left pad touched + * 10.4 | -- | right pad touched + * 10.5 | -- | unknown + * 10.6 | BTN_THUMBL | left joystick clicked + * 10.7 | -- | unknown + * 11.0 | -- | unknown + * 11.1 | -- | unknown + * 11.2 | BTN_THUMBR | right joystick clicked + * 11.3 | -- | unknown + * 11.4 | -- | unknown + * 11.5 | -- | unknown + * 11.6 | -- | unknown + * 11.7 | -- | unknown + * 12.0 | -- | unknown + * 12.1 | -- | unknown + * 12.2 | -- | unknown + * 12.3 | -- | unknown + * 12.4 | -- | unknown + * 12.5 | -- | unknown + * 12.6 | -- | unknown + * 12.7 | -- | unknown + * 13.0 | -- | unknown + * 13.1 | BTN_TRIGGER_HAPPY1 | left top grip button + * 13.2 | BTN_TRIGGER_HAPPY2 | right top grip button + * 13.3 | -- | unknown + * 13.4 | -- | unknown + * 13.5 | -- | unknown + * 13.6 | -- | left joystick touched + * 13.7 | -- | right joystick touched + * 14.0 | -- | unknown + * 14.1 | -- | unknown + * 14.2 | BTN_BASE | quick access button + * 14.3 | -- | unknown + * 14.4 | -- | unknown + * 14.5 | -- | unknown + * 14.6 | -- | unknown + * 14.7 | -- | unknown + * 15.0 | -- | unknown + * 15.1 | -- | unknown + * 15.2 | -- | unknown + * 15.3 | -- | unknown + * 15.4 | -- | unknown + * 15.5 | -- | unknown + * 15.6 | -- | unknown + * 15.7 | -- | unknown + */ +static void steam_do_deck_input_event(struct steam_device *steam, + struct input_dev *input, u8 *data) +{ + u8 b8, b9, b10, b11, b13, b14; + bool lpad_touched, rpad_touched; + + b8 = data[8]; + b9 = data[9]; + b10 = data[10]; + b11 = data[11]; + b13 = data[13]; + b14 = data[14]; + + lpad_touched = b10 & BIT(3); + rpad_touched = b10 & BIT(4); + + if (lpad_touched) { + input_report_abs(input, ABS_HAT0X, steam_le16(data + 16)); + input_report_abs(input, ABS_HAT0Y, steam_le16(data + 18)); + } else { + input_report_abs(input, ABS_HAT0X, 0); + input_report_abs(input, ABS_HAT0Y, 0); + } + + if (rpad_touched) { + input_report_abs(input, ABS_HAT1X, steam_le16(data + 20)); + input_report_abs(input, ABS_HAT1Y, steam_le16(data + 22)); + } else { + input_report_abs(input, ABS_HAT1X, 0); + input_report_abs(input, ABS_HAT1Y, 0); + } + + input_report_abs(input, ABS_X, steam_le16(data + 48)); + input_report_abs(input, ABS_Y, -steam_le16(data + 50)); + input_report_abs(input, ABS_RX, steam_le16(data + 52)); + input_report_abs(input, ABS_RY, -steam_le16(data + 54)); + + input_report_abs(input, ABS_HAT2Y, steam_le16(data + 44)); + input_report_abs(input, ABS_HAT2X, steam_le16(data + 46)); + + input_event(input, EV_KEY, BTN_TR2, !!(b8 & BIT(0))); + input_event(input, EV_KEY, BTN_TL2, !!(b8 & BIT(1))); + input_event(input, EV_KEY, BTN_TR, !!(b8 & BIT(2))); + input_event(input, EV_KEY, BTN_TL, !!(b8 & BIT(3))); + input_event(input, EV_KEY, BTN_Y, !!(b8 & BIT(4))); + input_event(input, EV_KEY, BTN_B, !!(b8 & BIT(5))); + input_event(input, EV_KEY, BTN_X, !!(b8 & BIT(6))); + input_event(input, EV_KEY, BTN_A, !!(b8 & BIT(7))); + input_event(input, EV_KEY, BTN_SELECT, !!(b9 & BIT(4))); + input_event(input, EV_KEY, BTN_MODE, !!(b9 & BIT(5))); + input_event(input, EV_KEY, BTN_START, !!(b9 & BIT(6))); + input_event(input, EV_KEY, BTN_TRIGGER_HAPPY3, !!(b9 & BIT(7))); + input_event(input, EV_KEY, BTN_TRIGGER_HAPPY4, !!(b10 & BIT(0))); + input_event(input, EV_KEY, BTN_THUMBL, !!(b10 & BIT(6))); + input_event(input, EV_KEY, BTN_THUMBR, !!(b11 & BIT(2))); + input_event(input, EV_KEY, BTN_DPAD_UP, !!(b9 & BIT(0))); + input_event(input, EV_KEY, BTN_DPAD_RIGHT, !!(b9 & BIT(1))); + input_event(input, EV_KEY, BTN_DPAD_LEFT, !!(b9 & BIT(2))); + input_event(input, EV_KEY, BTN_DPAD_DOWN, !!(b9 & BIT(3))); + input_event(input, EV_KEY, BTN_THUMB, !!(b10 & BIT(1))); + input_event(input, EV_KEY, BTN_THUMB2, !!(b10 & BIT(2))); + input_event(input, EV_KEY, BTN_TRIGGER_HAPPY1, !!(b13 & BIT(1))); + input_event(input, EV_KEY, BTN_TRIGGER_HAPPY2, !!(b13 & BIT(2))); + input_event(input, EV_KEY, BTN_BASE, !!(b14 & BIT(2))); + + input_sync(input); +} + /* * The size for this message payload is 11. * The known values are: @@ -1052,6 +1314,7 @@ static int steam_raw_event(struct hid_device *hdev, * 0x01: input data (60 bytes) * 0x03: wireless connect/disconnect (1 byte) * 0x04: battery status (11 bytes) + * 0x09: Steam Deck input data (56 bytes) */ if (size != 64 || data[0] != 1 || data[1] != 0) @@ -1067,6 +1330,15 @@ static int steam_raw_event(struct hid_device *hdev, steam_do_input_event(steam, input, data); rcu_read_unlock(); break; + case STEAM_EV_DECK_INPUT_DATA: + if (steam->client_opened) + return 0; + rcu_read_lock(); + input = rcu_dereference(steam->input); + if (likely(input)) + steam_do_deck_input_event(steam, input, data); + rcu_read_unlock(); + break; case STEAM_EV_CONNECT: /* * The payload of this event is a single byte: @@ -1141,6 +1413,11 @@ static const struct hid_device_id steam_controllers[] = { USB_DEVICE_ID_STEAM_CONTROLLER_WIRELESS), .driver_data = STEAM_QUIRK_WIRELESS }, + { /* Steam Deck */ + HID_USB_DEVICE(USB_VENDOR_ID_VALVE, + USB_DEVICE_ID_STEAM_DECK), + .driver_data = STEAM_QUIRK_DECK + }, {} }; -- cgit v1.2.3 From 9cd61c8179781344315c2a9816977ea415c5459e Mon Sep 17 00:00:00 2001 From: Vicki Pfau Date: Wed, 25 Jan 2023 19:01:26 -0800 Subject: HID: hid-steam: Add rumble on Deck The Steam Deck includes a new report that allows for emulating XInput-style rumble motors with the Deck's actuators. This adds support for passing these values directly to the Deck. Signed-off-by: Vicki Pfau Reviewed-by: Lyude Paul Link: https://lore.kernel.org/r/20230126030126.895670-3-vi@endrift.com Signed-off-by: Benjamin Tissoires --- drivers/hid/Kconfig | 8 ++++++++ drivers/hid/hid-steam.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 62 insertions(+) diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 20402d0a7eab..ce488cf8765f 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -1025,6 +1025,14 @@ config HID_STEAM without running the Steam Client. It supports both the wired and the wireless adaptor. +config STEAM_FF + bool "Steam Deck force feedback support" + depends on HID_STEAM + select INPUT_FF_MEMLESS + help + Say Y here if you want to enable force feedback support for the Steam + Deck. + config HID_STEELSERIES tristate "Steelseries SRW-S1 steering wheel support" help diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c index 09330d9bfee3..aaca390ca299 100644 --- a/drivers/hid/hid-steam.c +++ b/drivers/hid/hid-steam.c @@ -91,6 +91,7 @@ static LIST_HEAD(steam_devices); #define STEAM_CMD_FORCEFEEDBAK 0x8f #define STEAM_CMD_REQUEST_COMM_STATUS 0xb4 #define STEAM_CMD_GET_SERIAL 0xae +#define STEAM_CMD_HAPTIC_RUMBLE 0xeb /* Some useful register ids */ #define STEAM_REG_LPAD_MODE 0x07 @@ -134,6 +135,9 @@ struct steam_device { u8 battery_charge; u16 voltage; struct delayed_work heartbeat; + struct work_struct rumble_work; + u16 rumble_left; + u16 rumble_right; }; static int steam_recv_report(struct steam_device *steam, @@ -290,6 +294,45 @@ static inline int steam_request_conn_status(struct steam_device *steam) return steam_send_report_byte(steam, STEAM_CMD_REQUEST_COMM_STATUS); } +static inline int steam_haptic_rumble(struct steam_device *steam, + u16 intensity, u16 left_speed, u16 right_speed, + u8 left_gain, u8 right_gain) +{ + u8 report[11] = {STEAM_CMD_HAPTIC_RUMBLE, 9}; + + report[3] = intensity & 0xFF; + report[4] = intensity >> 8; + report[5] = left_speed & 0xFF; + report[6] = left_speed >> 8; + report[7] = right_speed & 0xFF; + report[8] = right_speed >> 8; + report[9] = left_gain; + report[10] = right_gain; + + return steam_send_report(steam, report, sizeof(report)); +} + +static void steam_haptic_rumble_cb(struct work_struct *work) +{ + struct steam_device *steam = container_of(work, struct steam_device, + rumble_work); + steam_haptic_rumble(steam, 0, steam->rumble_left, + steam->rumble_right, 2, 0); +} + +#ifdef CONFIG_STEAM_FF +static int steam_play_effect(struct input_dev *dev, void *data, + struct ff_effect *effect) +{ + struct steam_device *steam = input_get_drvdata(dev); + + steam->rumble_left = effect->u.rumble.strong_magnitude; + steam->rumble_right = effect->u.rumble.weak_magnitude; + + return schedule_work(&steam->rumble_work); +} +#endif + static void steam_set_lizard_mode(struct steam_device *steam, bool enable) { if (enable) { @@ -540,6 +583,15 @@ static int steam_input_register(struct steam_device *steam) input_abs_set_res(input, ABS_HAT0X, STEAM_PAD_RESOLUTION); input_abs_set_res(input, ABS_HAT0Y, STEAM_PAD_RESOLUTION); +#ifdef CONFIG_STEAM_FF + if (steam->quirks & STEAM_QUIRK_DECK) { + input_set_capability(input, EV_FF, FF_RUMBLE); + ret = input_ff_create_memless(input, NULL, steam_play_effect); + if (ret) + goto input_register_fail; + } +#endif + ret = input_register_device(input); if (ret) goto input_register_fail; @@ -841,6 +893,7 @@ static int steam_probe(struct hid_device *hdev, INIT_WORK(&steam->work_connect, steam_work_connect_cb); INIT_LIST_HEAD(&steam->list); INIT_DEFERRABLE_WORK(&steam->heartbeat, steam_lizard_mode_heartbeat); + INIT_WORK(&steam->rumble_work, steam_haptic_rumble_cb); steam->client_hdev = steam_create_client_hid(hdev); if (IS_ERR(steam->client_hdev)) { @@ -897,6 +950,7 @@ hid_hw_start_fail: client_hdev_fail: cancel_work_sync(&steam->work_connect); cancel_delayed_work_sync(&steam->heartbeat); + cancel_work_sync(&steam->rumble_work); steam_alloc_fail: hid_err(hdev, "%s: failed with error %d\n", __func__, ret); -- cgit v1.2.3