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c164d6ab RRC |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* | |
3 | * HID driver for Valve Steam Controller | |
4 | * | |
5 | * Copyright (c) 2018 Rodrigo Rivas Costa <rodrigorivascosta@gmail.com> | |
9ba9498b | 6 | * Copyright (c) 2022 Valve Software |
c164d6ab RRC |
7 | * |
8 | * Supports both the wired and wireless interfaces. | |
9 | * | |
10 | * This controller has a builtin emulation of mouse and keyboard: the right pad | |
11 | * can be used as a mouse, the shoulder buttons are mouse buttons, A and B | |
12 | * buttons are ENTER and ESCAPE, and so on. This is implemented as additional | |
13 | * HID interfaces. | |
14 | * | |
15 | * This is known as the "lizard mode", because apparently lizards like to use | |
16 | * the computer from the coach, without a proper mouse and keyboard. | |
17 | * | |
18 | * This driver will disable the lizard mode when the input device is opened | |
19 | * and re-enable it when the input device is closed, so as not to break user | |
20 | * mode behaviour. The lizard_mode parameter can be used to change that. | |
21 | * | |
22 | * There are a few user space applications (notably Steam Client) that use | |
23 | * the hidraw interface directly to create input devices (XTest, uinput...). | |
24 | * In order to avoid breaking them this driver creates a layered hidraw device, | |
25 | * so it can detect when the client is running and then: | |
26 | * - it will not send any command to the controller. | |
385a4886 | 27 | * - this input device will be removed, to avoid double input of the same |
c164d6ab | 28 | * user action. |
385a4886 | 29 | * When the client is closed, this input device will be created again. |
c164d6ab RRC |
30 | * |
31 | * For additional functions, such as changing the right-pad margin or switching | |
32 | * the led, you can use the user-space tool at: | |
33 | * | |
34 | * https://github.com/rodrigorc/steamctrl | |
35 | */ | |
36 | ||
37 | #include <linux/device.h> | |
38 | #include <linux/input.h> | |
39 | #include <linux/hid.h> | |
40 | #include <linux/module.h> | |
41 | #include <linux/workqueue.h> | |
42 | #include <linux/mutex.h> | |
43 | #include <linux/rcupdate.h> | |
44 | #include <linux/delay.h> | |
f8271979 | 45 | #include <linux/power_supply.h> |
c164d6ab RRC |
46 | #include "hid-ids.h" |
47 | ||
48 | MODULE_LICENSE("GPL"); | |
49 | MODULE_AUTHOR("Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>"); | |
50 | ||
51 | static bool lizard_mode = true; | |
52 | ||
53 | static DEFINE_MUTEX(steam_devices_lock); | |
54 | static LIST_HEAD(steam_devices); | |
55 | ||
56 | #define STEAM_QUIRK_WIRELESS BIT(0) | |
9ba9498b | 57 | #define STEAM_QUIRK_DECK BIT(1) |
c164d6ab RRC |
58 | |
59 | /* Touch pads are 40 mm in diameter and 65535 units */ | |
60 | #define STEAM_PAD_RESOLUTION 1638 | |
61 | /* Trigger runs are about 5 mm and 256 units */ | |
62 | #define STEAM_TRIGGER_RESOLUTION 51 | |
63 | /* Joystick runs are about 5 mm and 256 units */ | |
64 | #define STEAM_JOYSTICK_RESOLUTION 51 | |
9ba9498b VP |
65 | /* Trigger runs are about 6 mm and 32768 units */ |
66 | #define STEAM_DECK_TRIGGER_RESOLUTION 5461 | |
67 | /* Joystick runs are about 5 mm and 32768 units */ | |
68 | #define STEAM_DECK_JOYSTICK_RESOLUTION 6553 | |
c164d6ab RRC |
69 | |
70 | #define STEAM_PAD_FUZZ 256 | |
71 | ||
72 | /* | |
73 | * Commands that can be sent in a feature report. | |
4f9a5a97 | 74 | * Thanks to Valve and SDL for the names. |
c164d6ab | 75 | */ |
4f9a5a97 VP |
76 | enum { |
77 | ID_SET_DIGITAL_MAPPINGS = 0x80, | |
78 | ID_CLEAR_DIGITAL_MAPPINGS = 0x81, | |
79 | ID_GET_DIGITAL_MAPPINGS = 0x82, | |
80 | ID_GET_ATTRIBUTES_VALUES = 0x83, | |
81 | ID_GET_ATTRIBUTE_LABEL = 0x84, | |
82 | ID_SET_DEFAULT_DIGITAL_MAPPINGS = 0x85, | |
83 | ID_FACTORY_RESET = 0x86, | |
84 | ID_SET_SETTINGS_VALUES = 0x87, | |
85 | ID_CLEAR_SETTINGS_VALUES = 0x88, | |
86 | ID_GET_SETTINGS_VALUES = 0x89, | |
87 | ID_GET_SETTING_LABEL = 0x8A, | |
88 | ID_GET_SETTINGS_MAXS = 0x8B, | |
89 | ID_GET_SETTINGS_DEFAULTS = 0x8C, | |
90 | ID_SET_CONTROLLER_MODE = 0x8D, | |
91 | ID_LOAD_DEFAULT_SETTINGS = 0x8E, | |
92 | ID_TRIGGER_HAPTIC_PULSE = 0x8F, | |
93 | ID_TURN_OFF_CONTROLLER = 0x9F, | |
94 | ||
95 | ID_GET_DEVICE_INFO = 0xA1, | |
96 | ||
97 | ID_CALIBRATE_TRACKPADS = 0xA7, | |
98 | ID_RESERVED_0 = 0xA8, | |
99 | ID_SET_SERIAL_NUMBER = 0xA9, | |
100 | ID_GET_TRACKPAD_CALIBRATION = 0xAA, | |
101 | ID_GET_TRACKPAD_FACTORY_CALIBRATION = 0xAB, | |
102 | ID_GET_TRACKPAD_RAW_DATA = 0xAC, | |
103 | ID_ENABLE_PAIRING = 0xAD, | |
104 | ID_GET_STRING_ATTRIBUTE = 0xAE, | |
105 | ID_RADIO_ERASE_RECORDS = 0xAF, | |
106 | ID_RADIO_WRITE_RECORD = 0xB0, | |
107 | ID_SET_DONGLE_SETTING = 0xB1, | |
108 | ID_DONGLE_DISCONNECT_DEVICE = 0xB2, | |
109 | ID_DONGLE_COMMIT_DEVICE = 0xB3, | |
110 | ID_DONGLE_GET_WIRELESS_STATE = 0xB4, | |
111 | ID_CALIBRATE_GYRO = 0xB5, | |
112 | ID_PLAY_AUDIO = 0xB6, | |
113 | ID_AUDIO_UPDATE_START = 0xB7, | |
114 | ID_AUDIO_UPDATE_DATA = 0xB8, | |
115 | ID_AUDIO_UPDATE_COMPLETE = 0xB9, | |
116 | ID_GET_CHIPID = 0xBA, | |
117 | ||
118 | ID_CALIBRATE_JOYSTICK = 0xBF, | |
119 | ID_CALIBRATE_ANALOG_TRIGGERS = 0xC0, | |
120 | ID_SET_AUDIO_MAPPING = 0xC1, | |
121 | ID_CHECK_GYRO_FW_LOAD = 0xC2, | |
122 | ID_CALIBRATE_ANALOG = 0xC3, | |
123 | ID_DONGLE_GET_CONNECTED_SLOTS = 0xC4, | |
124 | ||
125 | ID_RESET_IMU = 0xCE, | |
126 | ||
127 | ID_TRIGGER_HAPTIC_CMD = 0xEA, | |
128 | ID_TRIGGER_RUMBLE_CMD = 0xEB, | |
129 | }; | |
130 | ||
131 | /* Settings IDs */ | |
132 | enum { | |
133 | /* 0 */ | |
134 | SETTING_MOUSE_SENSITIVITY, | |
135 | SETTING_MOUSE_ACCELERATION, | |
136 | SETTING_TRACKBALL_ROTATION_ANGLE, | |
137 | SETTING_HAPTIC_INTENSITY_UNUSED, | |
138 | SETTING_LEFT_GAMEPAD_STICK_ENABLED, | |
139 | SETTING_RIGHT_GAMEPAD_STICK_ENABLED, | |
140 | SETTING_USB_DEBUG_MODE, | |
141 | SETTING_LEFT_TRACKPAD_MODE, | |
142 | SETTING_RIGHT_TRACKPAD_MODE, | |
143 | SETTING_MOUSE_POINTER_ENABLED, | |
144 | ||
145 | /* 10 */ | |
146 | SETTING_DPAD_DEADZONE, | |
147 | SETTING_MINIMUM_MOMENTUM_VEL, | |
148 | SETTING_MOMENTUM_DECAY_AMMOUNT, | |
149 | SETTING_TRACKPAD_RELATIVE_MODE_TICKS_PER_PIXEL, | |
150 | SETTING_HAPTIC_INCREMENT, | |
151 | SETTING_DPAD_ANGLE_SIN, | |
152 | SETTING_DPAD_ANGLE_COS, | |
153 | SETTING_MOMENTUM_VERTICAL_DIVISOR, | |
154 | SETTING_MOMENTUM_MAXIMUM_VELOCITY, | |
155 | SETTING_TRACKPAD_Z_ON, | |
156 | ||
157 | /* 20 */ | |
158 | SETTING_TRACKPAD_Z_OFF, | |
159 | SETTING_SENSITIVY_SCALE_AMMOUNT, | |
160 | SETTING_LEFT_TRACKPAD_SECONDARY_MODE, | |
161 | SETTING_RIGHT_TRACKPAD_SECONDARY_MODE, | |
162 | SETTING_SMOOTH_ABSOLUTE_MOUSE, | |
163 | SETTING_STEAMBUTTON_POWEROFF_TIME, | |
164 | SETTING_UNUSED_1, | |
165 | SETTING_TRACKPAD_OUTER_RADIUS, | |
166 | SETTING_TRACKPAD_Z_ON_LEFT, | |
167 | SETTING_TRACKPAD_Z_OFF_LEFT, | |
168 | ||
169 | /* 30 */ | |
170 | SETTING_TRACKPAD_OUTER_SPIN_VEL, | |
171 | SETTING_TRACKPAD_OUTER_SPIN_RADIUS, | |
172 | SETTING_TRACKPAD_OUTER_SPIN_HORIZONTAL_ONLY, | |
173 | SETTING_TRACKPAD_RELATIVE_MODE_DEADZONE, | |
174 | SETTING_TRACKPAD_RELATIVE_MODE_MAX_VEL, | |
175 | SETTING_TRACKPAD_RELATIVE_MODE_INVERT_Y, | |
176 | SETTING_TRACKPAD_DOUBLE_TAP_BEEP_ENABLED, | |
177 | SETTING_TRACKPAD_DOUBLE_TAP_BEEP_PERIOD, | |
178 | SETTING_TRACKPAD_DOUBLE_TAP_BEEP_COUNT, | |
179 | SETTING_TRACKPAD_OUTER_RADIUS_RELEASE_ON_TRANSITION, | |
180 | ||
181 | /* 40 */ | |
182 | SETTING_RADIAL_MODE_ANGLE, | |
183 | SETTING_HAPTIC_INTENSITY_MOUSE_MODE, | |
184 | SETTING_LEFT_DPAD_REQUIRES_CLICK, | |
185 | SETTING_RIGHT_DPAD_REQUIRES_CLICK, | |
186 | SETTING_LED_BASELINE_BRIGHTNESS, | |
187 | SETTING_LED_USER_BRIGHTNESS, | |
188 | SETTING_ENABLE_RAW_JOYSTICK, | |
189 | SETTING_ENABLE_FAST_SCAN, | |
190 | SETTING_IMU_MODE, | |
191 | SETTING_WIRELESS_PACKET_VERSION, | |
192 | ||
193 | /* 50 */ | |
194 | SETTING_SLEEP_INACTIVITY_TIMEOUT, | |
195 | SETTING_TRACKPAD_NOISE_THRESHOLD, | |
196 | SETTING_LEFT_TRACKPAD_CLICK_PRESSURE, | |
197 | SETTING_RIGHT_TRACKPAD_CLICK_PRESSURE, | |
198 | SETTING_LEFT_BUMPER_CLICK_PRESSURE, | |
199 | SETTING_RIGHT_BUMPER_CLICK_PRESSURE, | |
200 | SETTING_LEFT_GRIP_CLICK_PRESSURE, | |
201 | SETTING_RIGHT_GRIP_CLICK_PRESSURE, | |
202 | SETTING_LEFT_GRIP2_CLICK_PRESSURE, | |
203 | SETTING_RIGHT_GRIP2_CLICK_PRESSURE, | |
204 | ||
205 | /* 60 */ | |
206 | SETTING_PRESSURE_MODE, | |
207 | SETTING_CONTROLLER_TEST_MODE, | |
208 | SETTING_TRIGGER_MODE, | |
209 | SETTING_TRACKPAD_Z_THRESHOLD, | |
210 | SETTING_FRAME_RATE, | |
211 | SETTING_TRACKPAD_FILT_CTRL, | |
212 | SETTING_TRACKPAD_CLIP, | |
213 | SETTING_DEBUG_OUTPUT_SELECT, | |
214 | SETTING_TRIGGER_THRESHOLD_PERCENT, | |
215 | SETTING_TRACKPAD_FREQUENCY_HOPPING, | |
216 | ||
217 | /* 70 */ | |
218 | SETTING_HAPTICS_ENABLED, | |
219 | SETTING_STEAM_WATCHDOG_ENABLE, | |
220 | SETTING_TIMP_TOUCH_THRESHOLD_ON, | |
221 | SETTING_TIMP_TOUCH_THRESHOLD_OFF, | |
222 | SETTING_FREQ_HOPPING, | |
223 | SETTING_TEST_CONTROL, | |
224 | SETTING_HAPTIC_MASTER_GAIN_DB, | |
225 | SETTING_THUMB_TOUCH_THRESH, | |
226 | SETTING_DEVICE_POWER_STATUS, | |
227 | SETTING_HAPTIC_INTENSITY, | |
228 | ||
229 | /* 80 */ | |
230 | SETTING_STABILIZER_ENABLED, | |
231 | SETTING_TIMP_MODE_MTE, | |
232 | }; | |
233 | ||
234 | /* Input report identifiers */ | |
235 | enum | |
236 | { | |
237 | ID_CONTROLLER_STATE = 1, | |
238 | ID_CONTROLLER_DEBUG = 2, | |
239 | ID_CONTROLLER_WIRELESS = 3, | |
240 | ID_CONTROLLER_STATUS = 4, | |
241 | ID_CONTROLLER_DEBUG2 = 5, | |
242 | ID_CONTROLLER_SECONDARY_STATE = 6, | |
243 | ID_CONTROLLER_BLE_STATE = 7, | |
244 | ID_CONTROLLER_DECK_STATE = 9 | |
245 | }; | |
246 | ||
247 | /* String attribute idenitifiers */ | |
248 | enum { | |
249 | ATTRIB_STR_BOARD_SERIAL, | |
250 | ATTRIB_STR_UNIT_SERIAL, | |
251 | }; | |
c164d6ab RRC |
252 | |
253 | /* Values for GYRO_MODE (bitmask) */ | |
4f9a5a97 VP |
254 | enum { |
255 | SETTING_GYRO_MODE_OFF = 0, | |
256 | SETTING_GYRO_MODE_STEERING = BIT(0), | |
257 | SETTING_GYRO_MODE_TILT = BIT(1), | |
258 | SETTING_GYRO_MODE_SEND_ORIENTATION = BIT(2), | |
259 | SETTING_GYRO_MODE_SEND_RAW_ACCEL = BIT(3), | |
260 | SETTING_GYRO_MODE_SEND_RAW_GYRO = BIT(4), | |
261 | }; | |
262 | ||
263 | /* Trackpad modes */ | |
264 | enum { | |
265 | TRACKPAD_ABSOLUTE_MOUSE, | |
266 | TRACKPAD_RELATIVE_MOUSE, | |
267 | TRACKPAD_DPAD_FOUR_WAY_DISCRETE, | |
268 | TRACKPAD_DPAD_FOUR_WAY_OVERLAP, | |
269 | TRACKPAD_DPAD_EIGHT_WAY, | |
270 | TRACKPAD_RADIAL_MODE, | |
271 | TRACKPAD_ABSOLUTE_DPAD, | |
272 | TRACKPAD_NONE, | |
273 | TRACKPAD_GESTURE_KEYBOARD, | |
274 | }; | |
c164d6ab | 275 | |
cd438e57 VP |
276 | /* Pad identifiers for the deck */ |
277 | #define STEAM_PAD_LEFT 0 | |
278 | #define STEAM_PAD_RIGHT 1 | |
279 | #define STEAM_PAD_BOTH 2 | |
280 | ||
c164d6ab | 281 | /* Other random constants */ |
43565b67 | 282 | #define STEAM_SERIAL_LEN 0x15 |
c164d6ab RRC |
283 | |
284 | struct steam_device { | |
285 | struct list_head list; | |
286 | spinlock_t lock; | |
287 | struct hid_device *hdev, *client_hdev; | |
691ead12 | 288 | struct mutex report_mutex; |
555b818a | 289 | unsigned long client_opened; |
c164d6ab RRC |
290 | struct input_dev __rcu *input; |
291 | unsigned long quirks; | |
292 | struct work_struct work_connect; | |
293 | bool connected; | |
294 | char serial_no[STEAM_SERIAL_LEN + 1]; | |
f8271979 RRC |
295 | struct power_supply_desc battery_desc; |
296 | struct power_supply __rcu *battery; | |
297 | u8 battery_charge; | |
298 | u16 voltage; | |
cd438e57 VP |
299 | struct delayed_work mode_switch; |
300 | bool did_mode_switch; | |
301 | bool gamepad_mode; | |
9cd61c81 VP |
302 | struct work_struct rumble_work; |
303 | u16 rumble_left; | |
304 | u16 rumble_right; | |
c164d6ab RRC |
305 | }; |
306 | ||
307 | static int steam_recv_report(struct steam_device *steam, | |
308 | u8 *data, int size) | |
309 | { | |
310 | struct hid_report *r; | |
311 | u8 *buf; | |
312 | int ret; | |
313 | ||
314 | r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0]; | |
cd11d1a6 LJ |
315 | if (!r) { |
316 | hid_err(steam->hdev, "No HID_FEATURE_REPORT submitted - nothing to read\n"); | |
317 | return -EINVAL; | |
318 | } | |
319 | ||
c164d6ab RRC |
320 | if (hid_report_len(r) < 64) |
321 | return -EINVAL; | |
322 | ||
323 | buf = hid_alloc_report_buf(r, GFP_KERNEL); | |
324 | if (!buf) | |
325 | return -ENOMEM; | |
326 | ||
327 | /* | |
328 | * The report ID is always 0, so strip the first byte from the output. | |
329 | * hid_report_len() is not counting the report ID, so +1 to the length | |
330 | * or else we get a EOVERFLOW. We are safe from a buffer overflow | |
331 | * because hid_alloc_report_buf() allocates +7 bytes. | |
332 | */ | |
333 | ret = hid_hw_raw_request(steam->hdev, 0x00, | |
334 | buf, hid_report_len(r) + 1, | |
335 | HID_FEATURE_REPORT, HID_REQ_GET_REPORT); | |
336 | if (ret > 0) | |
337 | memcpy(data, buf + 1, min(size, ret - 1)); | |
338 | kfree(buf); | |
339 | return ret; | |
340 | } | |
341 | ||
342 | static int steam_send_report(struct steam_device *steam, | |
343 | u8 *cmd, int size) | |
344 | { | |
345 | struct hid_report *r; | |
346 | u8 *buf; | |
347 | unsigned int retries = 50; | |
348 | int ret; | |
349 | ||
350 | r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0]; | |
cd11d1a6 LJ |
351 | if (!r) { |
352 | hid_err(steam->hdev, "No HID_FEATURE_REPORT submitted - nothing to read\n"); | |
353 | return -EINVAL; | |
354 | } | |
355 | ||
c164d6ab RRC |
356 | if (hid_report_len(r) < 64) |
357 | return -EINVAL; | |
358 | ||
359 | buf = hid_alloc_report_buf(r, GFP_KERNEL); | |
360 | if (!buf) | |
361 | return -ENOMEM; | |
362 | ||
363 | /* The report ID is always 0 */ | |
364 | memcpy(buf + 1, cmd, size); | |
365 | ||
366 | /* | |
367 | * Sometimes the wireless controller fails with EPIPE | |
368 | * when sending a feature report. | |
369 | * Doing a HID_REQ_GET_REPORT and waiting for a while | |
370 | * seems to fix that. | |
371 | */ | |
372 | do { | |
373 | ret = hid_hw_raw_request(steam->hdev, 0, | |
9ba9498b | 374 | buf, max(size, 64) + 1, |
c164d6ab RRC |
375 | HID_FEATURE_REPORT, HID_REQ_SET_REPORT); |
376 | if (ret != -EPIPE) | |
377 | break; | |
378 | msleep(20); | |
379 | } while (--retries); | |
380 | ||
381 | kfree(buf); | |
382 | if (ret < 0) | |
383 | hid_err(steam->hdev, "%s: error %d (%*ph)\n", __func__, | |
384 | ret, size, cmd); | |
385 | return ret; | |
386 | } | |
387 | ||
388 | static inline int steam_send_report_byte(struct steam_device *steam, u8 cmd) | |
389 | { | |
390 | return steam_send_report(steam, &cmd, 1); | |
391 | } | |
392 | ||
4f9a5a97 | 393 | static int steam_write_settings(struct steam_device *steam, |
c164d6ab RRC |
394 | /* u8 reg, u16 val */...) |
395 | { | |
396 | /* Send: 0x87 len (reg valLo valHi)* */ | |
397 | u8 reg; | |
398 | u16 val; | |
4f9a5a97 | 399 | u8 cmd[64] = {ID_SET_SETTINGS_VALUES, 0x00}; |
9ba9498b | 400 | int ret; |
c164d6ab RRC |
401 | va_list args; |
402 | ||
403 | va_start(args, steam); | |
404 | for (;;) { | |
405 | reg = va_arg(args, int); | |
406 | if (reg == 0) | |
407 | break; | |
408 | val = va_arg(args, int); | |
409 | cmd[cmd[1] + 2] = reg; | |
410 | cmd[cmd[1] + 3] = val & 0xff; | |
411 | cmd[cmd[1] + 4] = val >> 8; | |
412 | cmd[1] += 3; | |
413 | } | |
414 | va_end(args); | |
415 | ||
9ba9498b VP |
416 | ret = steam_send_report(steam, cmd, 2 + cmd[1]); |
417 | if (ret < 0) | |
418 | return ret; | |
419 | ||
420 | /* | |
421 | * Sometimes a lingering report for this command can | |
422 | * get read back instead of the last set report if | |
423 | * this isn't explicitly queried | |
424 | */ | |
425 | return steam_recv_report(steam, cmd, 2 + cmd[1]); | |
c164d6ab RRC |
426 | } |
427 | ||
428 | static int steam_get_serial(struct steam_device *steam) | |
429 | { | |
430 | /* | |
431 | * Send: 0xae 0x15 0x01 | |
43565b67 | 432 | * Recv: 0xae 0x15 0x01 serialnumber |
c164d6ab | 433 | */ |
691ead12 | 434 | int ret = 0; |
43565b67 | 435 | u8 cmd[] = {ID_GET_STRING_ATTRIBUTE, sizeof(steam->serial_no), ATTRIB_STR_UNIT_SERIAL}; |
c164d6ab RRC |
436 | u8 reply[3 + STEAM_SERIAL_LEN + 1]; |
437 | ||
691ead12 | 438 | mutex_lock(&steam->report_mutex); |
c164d6ab RRC |
439 | ret = steam_send_report(steam, cmd, sizeof(cmd)); |
440 | if (ret < 0) | |
691ead12 | 441 | goto out; |
c164d6ab RRC |
442 | ret = steam_recv_report(steam, reply, sizeof(reply)); |
443 | if (ret < 0) | |
691ead12 | 444 | goto out; |
43565b67 VP |
445 | if (reply[0] != ID_GET_STRING_ATTRIBUTE || reply[1] < 1 || |
446 | reply[1] > sizeof(steam->serial_no) || reply[2] != ATTRIB_STR_UNIT_SERIAL) { | |
691ead12 VP |
447 | ret = -EIO; |
448 | goto out; | |
449 | } | |
c164d6ab | 450 | reply[3 + STEAM_SERIAL_LEN] = 0; |
43565b67 | 451 | strscpy(steam->serial_no, reply + 3, reply[1]); |
691ead12 VP |
452 | out: |
453 | mutex_unlock(&steam->report_mutex); | |
454 | return ret; | |
c164d6ab RRC |
455 | } |
456 | ||
457 | /* | |
458 | * This command requests the wireless adaptor to post an event | |
459 | * with the connection status. Useful if this driver is loaded when | |
460 | * the controller is already connected. | |
461 | */ | |
462 | static inline int steam_request_conn_status(struct steam_device *steam) | |
463 | { | |
691ead12 VP |
464 | int ret; |
465 | mutex_lock(&steam->report_mutex); | |
4f9a5a97 | 466 | ret = steam_send_report_byte(steam, ID_DONGLE_GET_WIRELESS_STATE); |
691ead12 VP |
467 | mutex_unlock(&steam->report_mutex); |
468 | return ret; | |
c164d6ab RRC |
469 | } |
470 | ||
cd438e57 VP |
471 | /* |
472 | * Send a haptic pulse to the trackpads | |
473 | * Duration and interval are measured in microseconds, count is the number | |
474 | * of pulses to send for duration time with interval microseconds between them | |
475 | * and gain is measured in decibels, ranging from -24 to +6 | |
476 | */ | |
477 | static inline int steam_haptic_pulse(struct steam_device *steam, u8 pad, | |
478 | u16 duration, u16 interval, u16 count, u8 gain) | |
479 | { | |
480 | int ret; | |
481 | u8 report[10] = {ID_TRIGGER_HAPTIC_PULSE, 8}; | |
482 | ||
483 | /* Left and right are swapped on this report for legacy reasons */ | |
484 | if (pad < STEAM_PAD_BOTH) | |
485 | pad ^= 1; | |
486 | ||
487 | report[2] = pad; | |
488 | report[3] = duration & 0xFF; | |
489 | report[4] = duration >> 8; | |
490 | report[5] = interval & 0xFF; | |
491 | report[6] = interval >> 8; | |
492 | report[7] = count & 0xFF; | |
493 | report[8] = count >> 8; | |
494 | report[9] = gain; | |
495 | ||
496 | mutex_lock(&steam->report_mutex); | |
497 | ret = steam_send_report(steam, report, sizeof(report)); | |
498 | mutex_unlock(&steam->report_mutex); | |
499 | return ret; | |
500 | } | |
501 | ||
9cd61c81 VP |
502 | static inline int steam_haptic_rumble(struct steam_device *steam, |
503 | u16 intensity, u16 left_speed, u16 right_speed, | |
504 | u8 left_gain, u8 right_gain) | |
505 | { | |
691ead12 | 506 | int ret; |
4f9a5a97 | 507 | u8 report[11] = {ID_TRIGGER_RUMBLE_CMD, 9}; |
9cd61c81 VP |
508 | |
509 | report[3] = intensity & 0xFF; | |
510 | report[4] = intensity >> 8; | |
511 | report[5] = left_speed & 0xFF; | |
512 | report[6] = left_speed >> 8; | |
513 | report[7] = right_speed & 0xFF; | |
514 | report[8] = right_speed >> 8; | |
515 | report[9] = left_gain; | |
516 | report[10] = right_gain; | |
517 | ||
691ead12 VP |
518 | mutex_lock(&steam->report_mutex); |
519 | ret = steam_send_report(steam, report, sizeof(report)); | |
520 | mutex_unlock(&steam->report_mutex); | |
521 | return ret; | |
9cd61c81 VP |
522 | } |
523 | ||
524 | static void steam_haptic_rumble_cb(struct work_struct *work) | |
525 | { | |
526 | struct steam_device *steam = container_of(work, struct steam_device, | |
527 | rumble_work); | |
528 | steam_haptic_rumble(steam, 0, steam->rumble_left, | |
529 | steam->rumble_right, 2, 0); | |
530 | } | |
531 | ||
532 | #ifdef CONFIG_STEAM_FF | |
533 | static int steam_play_effect(struct input_dev *dev, void *data, | |
534 | struct ff_effect *effect) | |
535 | { | |
536 | struct steam_device *steam = input_get_drvdata(dev); | |
537 | ||
538 | steam->rumble_left = effect->u.rumble.strong_magnitude; | |
539 | steam->rumble_right = effect->u.rumble.weak_magnitude; | |
540 | ||
541 | return schedule_work(&steam->rumble_work); | |
542 | } | |
543 | #endif | |
544 | ||
c164d6ab RRC |
545 | static void steam_set_lizard_mode(struct steam_device *steam, bool enable) |
546 | { | |
cd438e57 VP |
547 | if (steam->gamepad_mode) |
548 | enable = false; | |
549 | ||
c164d6ab | 550 | if (enable) { |
691ead12 | 551 | mutex_lock(&steam->report_mutex); |
c164d6ab | 552 | /* enable esc, enter, cursors */ |
4f9a5a97 VP |
553 | steam_send_report_byte(steam, ID_SET_DEFAULT_DIGITAL_MAPPINGS); |
554 | /* reset settings */ | |
555 | steam_send_report_byte(steam, ID_LOAD_DEFAULT_SETTINGS); | |
691ead12 | 556 | mutex_unlock(&steam->report_mutex); |
c164d6ab | 557 | } else { |
691ead12 | 558 | mutex_lock(&steam->report_mutex); |
c164d6ab | 559 | /* disable esc, enter, cursor */ |
4f9a5a97 | 560 | steam_send_report_byte(steam, ID_CLEAR_DIGITAL_MAPPINGS); |
9ba9498b VP |
561 | |
562 | if (steam->quirks & STEAM_QUIRK_DECK) { | |
4f9a5a97 VP |
563 | steam_write_settings(steam, |
564 | SETTING_LEFT_TRACKPAD_MODE, TRACKPAD_NONE, /* disable mouse */ | |
565 | SETTING_RIGHT_TRACKPAD_MODE, TRACKPAD_NONE, /* disable mouse */ | |
566 | SETTING_LEFT_TRACKPAD_CLICK_PRESSURE, 0xFFFF, /* disable haptic click */ | |
567 | SETTING_RIGHT_TRACKPAD_CLICK_PRESSURE, 0xFFFF, /* disable haptic click */ | |
568 | SETTING_STEAM_WATCHDOG_ENABLE, 0, /* disable watchdog that tests if Steam is active */ | |
9ba9498b | 569 | 0); |
691ead12 | 570 | mutex_unlock(&steam->report_mutex); |
9ba9498b | 571 | } else { |
4f9a5a97 VP |
572 | steam_write_settings(steam, |
573 | SETTING_LEFT_TRACKPAD_MODE, TRACKPAD_NONE, /* disable mouse */ | |
574 | SETTING_RIGHT_TRACKPAD_MODE, TRACKPAD_NONE, /* disable mouse */ | |
9ba9498b | 575 | 0); |
691ead12 | 576 | mutex_unlock(&steam->report_mutex); |
9ba9498b | 577 | } |
c164d6ab RRC |
578 | } |
579 | } | |
580 | ||
c164d6ab RRC |
581 | static int steam_input_open(struct input_dev *dev) |
582 | { | |
583 | struct steam_device *steam = input_get_drvdata(dev); | |
691ead12 VP |
584 | unsigned long flags; |
585 | bool set_lizard_mode; | |
c164d6ab | 586 | |
cd438e57 VP |
587 | /* |
588 | * Disabling lizard mode automatically is only done on the Steam | |
589 | * Controller. On the Steam Deck, this is toggled manually by holding | |
590 | * the options button instead, handled by steam_mode_switch_cb. | |
591 | */ | |
592 | if (!(steam->quirks & STEAM_QUIRK_DECK)) { | |
593 | spin_lock_irqsave(&steam->lock, flags); | |
594 | set_lizard_mode = !steam->client_opened && lizard_mode; | |
595 | spin_unlock_irqrestore(&steam->lock, flags); | |
596 | if (set_lizard_mode) | |
597 | steam_set_lizard_mode(steam, false); | |
598 | } | |
691ead12 | 599 | |
c164d6ab RRC |
600 | return 0; |
601 | } | |
602 | ||
603 | static void steam_input_close(struct input_dev *dev) | |
604 | { | |
605 | struct steam_device *steam = input_get_drvdata(dev); | |
691ead12 VP |
606 | unsigned long flags; |
607 | bool set_lizard_mode; | |
c164d6ab | 608 | |
cd438e57 VP |
609 | if (!(steam->quirks & STEAM_QUIRK_DECK)) { |
610 | spin_lock_irqsave(&steam->lock, flags); | |
611 | set_lizard_mode = !steam->client_opened && lizard_mode; | |
612 | spin_unlock_irqrestore(&steam->lock, flags); | |
613 | if (set_lizard_mode) | |
614 | steam_set_lizard_mode(steam, true); | |
615 | } | |
c164d6ab RRC |
616 | } |
617 | ||
f8271979 RRC |
618 | static enum power_supply_property steam_battery_props[] = { |
619 | POWER_SUPPLY_PROP_PRESENT, | |
620 | POWER_SUPPLY_PROP_SCOPE, | |
621 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
622 | POWER_SUPPLY_PROP_CAPACITY, | |
623 | }; | |
624 | ||
625 | static int steam_battery_get_property(struct power_supply *psy, | |
626 | enum power_supply_property psp, | |
627 | union power_supply_propval *val) | |
628 | { | |
629 | struct steam_device *steam = power_supply_get_drvdata(psy); | |
630 | unsigned long flags; | |
631 | s16 volts; | |
632 | u8 batt; | |
633 | int ret = 0; | |
634 | ||
635 | spin_lock_irqsave(&steam->lock, flags); | |
636 | volts = steam->voltage; | |
637 | batt = steam->battery_charge; | |
638 | spin_unlock_irqrestore(&steam->lock, flags); | |
639 | ||
640 | switch (psp) { | |
641 | case POWER_SUPPLY_PROP_PRESENT: | |
642 | val->intval = 1; | |
643 | break; | |
644 | case POWER_SUPPLY_PROP_SCOPE: | |
645 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
646 | break; | |
647 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
648 | val->intval = volts * 1000; /* mV -> uV */ | |
649 | break; | |
650 | case POWER_SUPPLY_PROP_CAPACITY: | |
651 | val->intval = batt; | |
652 | break; | |
653 | default: | |
654 | ret = -EINVAL; | |
655 | break; | |
656 | } | |
657 | return ret; | |
658 | } | |
659 | ||
660 | static int steam_battery_register(struct steam_device *steam) | |
661 | { | |
662 | struct power_supply *battery; | |
663 | struct power_supply_config battery_cfg = { .drv_data = steam, }; | |
664 | unsigned long flags; | |
665 | int ret; | |
666 | ||
667 | steam->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY; | |
668 | steam->battery_desc.properties = steam_battery_props; | |
669 | steam->battery_desc.num_properties = ARRAY_SIZE(steam_battery_props); | |
670 | steam->battery_desc.get_property = steam_battery_get_property; | |
671 | steam->battery_desc.name = devm_kasprintf(&steam->hdev->dev, | |
672 | GFP_KERNEL, "steam-controller-%s-battery", | |
673 | steam->serial_no); | |
674 | if (!steam->battery_desc.name) | |
675 | return -ENOMEM; | |
676 | ||
677 | /* avoid the warning of 0% battery while waiting for the first info */ | |
678 | spin_lock_irqsave(&steam->lock, flags); | |
679 | steam->voltage = 3000; | |
680 | steam->battery_charge = 100; | |
681 | spin_unlock_irqrestore(&steam->lock, flags); | |
682 | ||
683 | battery = power_supply_register(&steam->hdev->dev, | |
684 | &steam->battery_desc, &battery_cfg); | |
685 | if (IS_ERR(battery)) { | |
686 | ret = PTR_ERR(battery); | |
687 | hid_err(steam->hdev, | |
688 | "%s:power_supply_register failed with error %d\n", | |
689 | __func__, ret); | |
690 | return ret; | |
691 | } | |
692 | rcu_assign_pointer(steam->battery, battery); | |
693 | power_supply_powers(battery, &steam->hdev->dev); | |
694 | return 0; | |
695 | } | |
696 | ||
385a4886 | 697 | static int steam_input_register(struct steam_device *steam) |
c164d6ab RRC |
698 | { |
699 | struct hid_device *hdev = steam->hdev; | |
700 | struct input_dev *input; | |
701 | int ret; | |
702 | ||
703 | rcu_read_lock(); | |
704 | input = rcu_dereference(steam->input); | |
705 | rcu_read_unlock(); | |
706 | if (input) { | |
707 | dbg_hid("%s: already connected\n", __func__); | |
708 | return 0; | |
709 | } | |
710 | ||
c164d6ab RRC |
711 | input = input_allocate_device(); |
712 | if (!input) | |
713 | return -ENOMEM; | |
714 | ||
715 | input_set_drvdata(input, steam); | |
716 | input->dev.parent = &hdev->dev; | |
717 | input->open = steam_input_open; | |
718 | input->close = steam_input_close; | |
719 | ||
9ba9498b VP |
720 | input->name = (steam->quirks & STEAM_QUIRK_WIRELESS) ? "Wireless Steam Controller" : |
721 | (steam->quirks & STEAM_QUIRK_DECK) ? "Steam Deck" : | |
c164d6ab RRC |
722 | "Steam Controller"; |
723 | input->phys = hdev->phys; | |
724 | input->uniq = steam->serial_no; | |
725 | input->id.bustype = hdev->bus; | |
726 | input->id.vendor = hdev->vendor; | |
727 | input->id.product = hdev->product; | |
728 | input->id.version = hdev->version; | |
729 | ||
730 | input_set_capability(input, EV_KEY, BTN_TR2); | |
731 | input_set_capability(input, EV_KEY, BTN_TL2); | |
732 | input_set_capability(input, EV_KEY, BTN_TR); | |
733 | input_set_capability(input, EV_KEY, BTN_TL); | |
734 | input_set_capability(input, EV_KEY, BTN_Y); | |
735 | input_set_capability(input, EV_KEY, BTN_B); | |
736 | input_set_capability(input, EV_KEY, BTN_X); | |
737 | input_set_capability(input, EV_KEY, BTN_A); | |
738 | input_set_capability(input, EV_KEY, BTN_DPAD_UP); | |
739 | input_set_capability(input, EV_KEY, BTN_DPAD_RIGHT); | |
740 | input_set_capability(input, EV_KEY, BTN_DPAD_LEFT); | |
741 | input_set_capability(input, EV_KEY, BTN_DPAD_DOWN); | |
742 | input_set_capability(input, EV_KEY, BTN_SELECT); | |
743 | input_set_capability(input, EV_KEY, BTN_MODE); | |
744 | input_set_capability(input, EV_KEY, BTN_START); | |
c164d6ab RRC |
745 | input_set_capability(input, EV_KEY, BTN_THUMBR); |
746 | input_set_capability(input, EV_KEY, BTN_THUMBL); | |
747 | input_set_capability(input, EV_KEY, BTN_THUMB); | |
748 | input_set_capability(input, EV_KEY, BTN_THUMB2); | |
9ba9498b VP |
749 | if (steam->quirks & STEAM_QUIRK_DECK) { |
750 | input_set_capability(input, EV_KEY, BTN_BASE); | |
751 | input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY1); | |
752 | input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY2); | |
753 | input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY3); | |
754 | input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY4); | |
755 | } else { | |
756 | input_set_capability(input, EV_KEY, BTN_GEAR_DOWN); | |
757 | input_set_capability(input, EV_KEY, BTN_GEAR_UP); | |
758 | } | |
c164d6ab | 759 | |
c164d6ab RRC |
760 | input_set_abs_params(input, ABS_X, -32767, 32767, 0, 0); |
761 | input_set_abs_params(input, ABS_Y, -32767, 32767, 0, 0); | |
9ba9498b | 762 | |
c164d6ab RRC |
763 | input_set_abs_params(input, ABS_HAT0X, -32767, 32767, |
764 | STEAM_PAD_FUZZ, 0); | |
765 | input_set_abs_params(input, ABS_HAT0Y, -32767, 32767, | |
766 | STEAM_PAD_FUZZ, 0); | |
9ba9498b VP |
767 | |
768 | if (steam->quirks & STEAM_QUIRK_DECK) { | |
769 | input_set_abs_params(input, ABS_HAT2Y, 0, 32767, 0, 0); | |
770 | input_set_abs_params(input, ABS_HAT2X, 0, 32767, 0, 0); | |
771 | ||
772 | input_set_abs_params(input, ABS_RX, -32767, 32767, 0, 0); | |
773 | input_set_abs_params(input, ABS_RY, -32767, 32767, 0, 0); | |
774 | ||
775 | input_set_abs_params(input, ABS_HAT1X, -32767, 32767, | |
776 | STEAM_PAD_FUZZ, 0); | |
777 | input_set_abs_params(input, ABS_HAT1Y, -32767, 32767, | |
778 | STEAM_PAD_FUZZ, 0); | |
779 | ||
780 | input_abs_set_res(input, ABS_X, STEAM_DECK_JOYSTICK_RESOLUTION); | |
781 | input_abs_set_res(input, ABS_Y, STEAM_DECK_JOYSTICK_RESOLUTION); | |
782 | input_abs_set_res(input, ABS_RX, STEAM_DECK_JOYSTICK_RESOLUTION); | |
783 | input_abs_set_res(input, ABS_RY, STEAM_DECK_JOYSTICK_RESOLUTION); | |
784 | input_abs_set_res(input, ABS_HAT1X, STEAM_PAD_RESOLUTION); | |
785 | input_abs_set_res(input, ABS_HAT1Y, STEAM_PAD_RESOLUTION); | |
786 | input_abs_set_res(input, ABS_HAT2Y, STEAM_DECK_TRIGGER_RESOLUTION); | |
787 | input_abs_set_res(input, ABS_HAT2X, STEAM_DECK_TRIGGER_RESOLUTION); | |
788 | } else { | |
789 | input_set_abs_params(input, ABS_HAT2Y, 0, 255, 0, 0); | |
790 | input_set_abs_params(input, ABS_HAT2X, 0, 255, 0, 0); | |
791 | ||
792 | input_set_abs_params(input, ABS_RX, -32767, 32767, | |
793 | STEAM_PAD_FUZZ, 0); | |
794 | input_set_abs_params(input, ABS_RY, -32767, 32767, | |
795 | STEAM_PAD_FUZZ, 0); | |
796 | ||
797 | input_abs_set_res(input, ABS_X, STEAM_JOYSTICK_RESOLUTION); | |
798 | input_abs_set_res(input, ABS_Y, STEAM_JOYSTICK_RESOLUTION); | |
799 | input_abs_set_res(input, ABS_RX, STEAM_PAD_RESOLUTION); | |
800 | input_abs_set_res(input, ABS_RY, STEAM_PAD_RESOLUTION); | |
801 | input_abs_set_res(input, ABS_HAT2Y, STEAM_TRIGGER_RESOLUTION); | |
802 | input_abs_set_res(input, ABS_HAT2X, STEAM_TRIGGER_RESOLUTION); | |
803 | } | |
c164d6ab RRC |
804 | input_abs_set_res(input, ABS_HAT0X, STEAM_PAD_RESOLUTION); |
805 | input_abs_set_res(input, ABS_HAT0Y, STEAM_PAD_RESOLUTION); | |
c164d6ab | 806 | |
9cd61c81 VP |
807 | #ifdef CONFIG_STEAM_FF |
808 | if (steam->quirks & STEAM_QUIRK_DECK) { | |
809 | input_set_capability(input, EV_FF, FF_RUMBLE); | |
810 | ret = input_ff_create_memless(input, NULL, steam_play_effect); | |
811 | if (ret) | |
812 | goto input_register_fail; | |
813 | } | |
814 | #endif | |
c164d6ab RRC |
815 | |
816 | ret = input_register_device(input); | |
817 | if (ret) | |
818 | goto input_register_fail; | |
819 | ||
820 | rcu_assign_pointer(steam->input, input); | |
c164d6ab RRC |
821 | return 0; |
822 | ||
823 | input_register_fail: | |
824 | input_free_device(input); | |
825 | return ret; | |
826 | } | |
827 | ||
385a4886 | 828 | static void steam_input_unregister(struct steam_device *steam) |
c164d6ab RRC |
829 | { |
830 | struct input_dev *input; | |
385a4886 RRC |
831 | rcu_read_lock(); |
832 | input = rcu_dereference(steam->input); | |
833 | rcu_read_unlock(); | |
834 | if (!input) | |
835 | return; | |
836 | RCU_INIT_POINTER(steam->input, NULL); | |
837 | synchronize_rcu(); | |
838 | input_unregister_device(input); | |
839 | } | |
840 | ||
841 | static void steam_battery_unregister(struct steam_device *steam) | |
842 | { | |
f8271979 | 843 | struct power_supply *battery; |
c164d6ab RRC |
844 | |
845 | rcu_read_lock(); | |
f8271979 | 846 | battery = rcu_dereference(steam->battery); |
c164d6ab RRC |
847 | rcu_read_unlock(); |
848 | ||
385a4886 RRC |
849 | if (!battery) |
850 | return; | |
851 | RCU_INIT_POINTER(steam->battery, NULL); | |
852 | synchronize_rcu(); | |
853 | power_supply_unregister(battery); | |
854 | } | |
855 | ||
856 | static int steam_register(struct steam_device *steam) | |
857 | { | |
858 | int ret; | |
555b818a | 859 | unsigned long client_opened; |
691ead12 | 860 | unsigned long flags; |
385a4886 RRC |
861 | |
862 | /* | |
863 | * This function can be called several times in a row with the | |
864 | * wireless adaptor, without steam_unregister() between them, because | |
865 | * another client send a get_connection_status command, for example. | |
866 | * The battery and serial number are set just once per device. | |
867 | */ | |
868 | if (!steam->serial_no[0]) { | |
869 | /* | |
870 | * Unlikely, but getting the serial could fail, and it is not so | |
871 | * important, so make up a serial number and go on. | |
872 | */ | |
873 | if (steam_get_serial(steam) < 0) | |
eeeec27d | 874 | strscpy(steam->serial_no, "XXXXXXXXXX", |
385a4886 RRC |
875 | sizeof(steam->serial_no)); |
876 | ||
877 | hid_info(steam->hdev, "Steam Controller '%s' connected", | |
878 | steam->serial_no); | |
879 | ||
880 | /* ignore battery errors, we can live without it */ | |
881 | if (steam->quirks & STEAM_QUIRK_WIRELESS) | |
882 | steam_battery_register(steam); | |
883 | ||
884 | mutex_lock(&steam_devices_lock); | |
2d3f53a8 RRC |
885 | if (list_empty(&steam->list)) |
886 | list_add(&steam->list, &steam_devices); | |
385a4886 | 887 | mutex_unlock(&steam_devices_lock); |
f8271979 | 888 | } |
385a4886 | 889 | |
691ead12 | 890 | spin_lock_irqsave(&steam->lock, flags); |
6b538cc2 | 891 | client_opened = steam->client_opened; |
691ead12 VP |
892 | spin_unlock_irqrestore(&steam->lock, flags); |
893 | if (!client_opened) { | |
385a4886 RRC |
894 | steam_set_lizard_mode(steam, lizard_mode); |
895 | ret = steam_input_register(steam); | |
691ead12 | 896 | } else |
385a4886 | 897 | ret = 0; |
385a4886 RRC |
898 | |
899 | return ret; | |
900 | } | |
901 | ||
902 | static void steam_unregister(struct steam_device *steam) | |
903 | { | |
904 | steam_battery_unregister(steam); | |
905 | steam_input_unregister(steam); | |
906 | if (steam->serial_no[0]) { | |
c164d6ab RRC |
907 | hid_info(steam->hdev, "Steam Controller '%s' disconnected", |
908 | steam->serial_no); | |
385a4886 | 909 | mutex_lock(&steam_devices_lock); |
2d3f53a8 | 910 | list_del_init(&steam->list); |
385a4886 RRC |
911 | mutex_unlock(&steam_devices_lock); |
912 | steam->serial_no[0] = 0; | |
c164d6ab RRC |
913 | } |
914 | } | |
915 | ||
916 | static void steam_work_connect_cb(struct work_struct *work) | |
917 | { | |
918 | struct steam_device *steam = container_of(work, struct steam_device, | |
919 | work_connect); | |
920 | unsigned long flags; | |
921 | bool connected; | |
922 | int ret; | |
923 | ||
924 | spin_lock_irqsave(&steam->lock, flags); | |
925 | connected = steam->connected; | |
926 | spin_unlock_irqrestore(&steam->lock, flags); | |
927 | ||
928 | if (connected) { | |
929 | ret = steam_register(steam); | |
930 | if (ret) { | |
931 | hid_err(steam->hdev, | |
932 | "%s:steam_register failed with error %d\n", | |
933 | __func__, ret); | |
934 | } | |
935 | } else { | |
936 | steam_unregister(steam); | |
937 | } | |
938 | } | |
939 | ||
cd438e57 VP |
940 | static void steam_mode_switch_cb(struct work_struct *work) |
941 | { | |
942 | struct steam_device *steam = container_of(to_delayed_work(work), | |
943 | struct steam_device, mode_switch); | |
944 | unsigned long flags; | |
945 | bool client_opened; | |
946 | steam->gamepad_mode = !steam->gamepad_mode; | |
947 | if (!lizard_mode) | |
948 | return; | |
949 | ||
950 | if (steam->gamepad_mode) | |
951 | steam_set_lizard_mode(steam, false); | |
952 | else { | |
953 | spin_lock_irqsave(&steam->lock, flags); | |
954 | client_opened = steam->client_opened; | |
955 | spin_unlock_irqrestore(&steam->lock, flags); | |
956 | if (!client_opened) | |
957 | steam_set_lizard_mode(steam, lizard_mode); | |
958 | } | |
959 | ||
960 | steam_haptic_pulse(steam, STEAM_PAD_RIGHT, 0x190, 0, 1, 0); | |
961 | if (steam->gamepad_mode) { | |
962 | steam_haptic_pulse(steam, STEAM_PAD_LEFT, 0x14D, 0x14D, 0x2D, 0); | |
963 | } else { | |
964 | steam_haptic_pulse(steam, STEAM_PAD_LEFT, 0x1F4, 0x1F4, 0x1E, 0); | |
965 | } | |
966 | } | |
967 | ||
c164d6ab RRC |
968 | static bool steam_is_valve_interface(struct hid_device *hdev) |
969 | { | |
970 | struct hid_report_enum *rep_enum; | |
971 | ||
972 | /* | |
973 | * The wired device creates 3 interfaces: | |
974 | * 0: emulated mouse. | |
975 | * 1: emulated keyboard. | |
976 | * 2: the real game pad. | |
977 | * The wireless device creates 5 interfaces: | |
978 | * 0: emulated keyboard. | |
979 | * 1-4: slots where up to 4 real game pads will be connected to. | |
980 | * We know which one is the real gamepad interface because they are the | |
981 | * only ones with a feature report. | |
982 | */ | |
983 | rep_enum = &hdev->report_enum[HID_FEATURE_REPORT]; | |
984 | return !list_empty(&rep_enum->report_list); | |
985 | } | |
986 | ||
987 | static int steam_client_ll_parse(struct hid_device *hdev) | |
988 | { | |
4bff980f | 989 | struct steam_device *steam = hdev->driver_data; |
c164d6ab RRC |
990 | |
991 | return hid_parse_report(hdev, steam->hdev->dev_rdesc, | |
992 | steam->hdev->dev_rsize); | |
993 | } | |
994 | ||
995 | static int steam_client_ll_start(struct hid_device *hdev) | |
996 | { | |
997 | return 0; | |
998 | } | |
999 | ||
1000 | static void steam_client_ll_stop(struct hid_device *hdev) | |
1001 | { | |
1002 | } | |
1003 | ||
1004 | static int steam_client_ll_open(struct hid_device *hdev) | |
1005 | { | |
4bff980f | 1006 | struct steam_device *steam = hdev->driver_data; |
691ead12 | 1007 | unsigned long flags; |
c164d6ab | 1008 | |
691ead12 | 1009 | spin_lock_irqsave(&steam->lock, flags); |
555b818a | 1010 | steam->client_opened++; |
691ead12 | 1011 | spin_unlock_irqrestore(&steam->lock, flags); |
385a4886 RRC |
1012 | |
1013 | steam_input_unregister(steam); | |
1014 | ||
cf28aee2 | 1015 | return 0; |
c164d6ab RRC |
1016 | } |
1017 | ||
1018 | static void steam_client_ll_close(struct hid_device *hdev) | |
1019 | { | |
4bff980f | 1020 | struct steam_device *steam = hdev->driver_data; |
c164d6ab | 1021 | |
6b538cc2 RRC |
1022 | unsigned long flags; |
1023 | bool connected; | |
1024 | ||
1025 | spin_lock_irqsave(&steam->lock, flags); | |
555b818a | 1026 | steam->client_opened--; |
691ead12 | 1027 | connected = steam->connected && !steam->client_opened; |
6b538cc2 RRC |
1028 | spin_unlock_irqrestore(&steam->lock, flags); |
1029 | ||
691ead12 | 1030 | if (connected) { |
6b538cc2 | 1031 | steam_set_lizard_mode(steam, lizard_mode); |
385a4886 | 1032 | steam_input_register(steam); |
691ead12 | 1033 | } |
c164d6ab RRC |
1034 | } |
1035 | ||
1036 | static int steam_client_ll_raw_request(struct hid_device *hdev, | |
1037 | unsigned char reportnum, u8 *buf, | |
1038 | size_t count, unsigned char report_type, | |
1039 | int reqtype) | |
1040 | { | |
4bff980f | 1041 | struct steam_device *steam = hdev->driver_data; |
c164d6ab RRC |
1042 | |
1043 | return hid_hw_raw_request(steam->hdev, reportnum, buf, count, | |
1044 | report_type, reqtype); | |
1045 | } | |
1046 | ||
ddb6792f | 1047 | static const struct hid_ll_driver steam_client_ll_driver = { |
c164d6ab RRC |
1048 | .parse = steam_client_ll_parse, |
1049 | .start = steam_client_ll_start, | |
1050 | .stop = steam_client_ll_stop, | |
1051 | .open = steam_client_ll_open, | |
1052 | .close = steam_client_ll_close, | |
1053 | .raw_request = steam_client_ll_raw_request, | |
1054 | }; | |
1055 | ||
1056 | static struct hid_device *steam_create_client_hid(struct hid_device *hdev) | |
1057 | { | |
1058 | struct hid_device *client_hdev; | |
1059 | ||
1060 | client_hdev = hid_allocate_device(); | |
1061 | if (IS_ERR(client_hdev)) | |
1062 | return client_hdev; | |
1063 | ||
1064 | client_hdev->ll_driver = &steam_client_ll_driver; | |
1065 | client_hdev->dev.parent = hdev->dev.parent; | |
1066 | client_hdev->bus = hdev->bus; | |
1067 | client_hdev->vendor = hdev->vendor; | |
1068 | client_hdev->product = hdev->product; | |
165e2cad JK |
1069 | client_hdev->version = hdev->version; |
1070 | client_hdev->type = hdev->type; | |
1071 | client_hdev->country = hdev->country; | |
eeeec27d | 1072 | strscpy(client_hdev->name, hdev->name, |
c164d6ab | 1073 | sizeof(client_hdev->name)); |
eeeec27d | 1074 | strscpy(client_hdev->phys, hdev->phys, |
c164d6ab RRC |
1075 | sizeof(client_hdev->phys)); |
1076 | /* | |
1077 | * Since we use the same device info than the real interface to | |
1078 | * trick userspace, we will be calling steam_probe recursively. | |
1079 | * We need to recognize the client interface somehow. | |
1080 | */ | |
1081 | client_hdev->group = HID_GROUP_STEAM; | |
1082 | return client_hdev; | |
1083 | } | |
1084 | ||
1085 | static int steam_probe(struct hid_device *hdev, | |
1086 | const struct hid_device_id *id) | |
1087 | { | |
1088 | struct steam_device *steam; | |
1089 | int ret; | |
1090 | ||
1091 | ret = hid_parse(hdev); | |
1092 | if (ret) { | |
1093 | hid_err(hdev, | |
1094 | "%s:parse of hid interface failed\n", __func__); | |
1095 | return ret; | |
1096 | } | |
1097 | ||
1098 | /* | |
1099 | * The virtual client_dev is only used for hidraw. | |
1100 | * Also avoid the recursive probe. | |
1101 | */ | |
1102 | if (hdev->group == HID_GROUP_STEAM) | |
1103 | return hid_hw_start(hdev, HID_CONNECT_HIDRAW); | |
1104 | /* | |
1105 | * The non-valve interfaces (mouse and keyboard emulation) are | |
1106 | * connected without changes. | |
1107 | */ | |
1108 | if (!steam_is_valve_interface(hdev)) | |
1109 | return hid_hw_start(hdev, HID_CONNECT_DEFAULT); | |
1110 | ||
1111 | steam = devm_kzalloc(&hdev->dev, sizeof(*steam), GFP_KERNEL); | |
1112 | if (!steam) { | |
1113 | ret = -ENOMEM; | |
1114 | goto steam_alloc_fail; | |
1115 | } | |
1116 | steam->hdev = hdev; | |
1117 | hid_set_drvdata(hdev, steam); | |
1118 | spin_lock_init(&steam->lock); | |
691ead12 | 1119 | mutex_init(&steam->report_mutex); |
c164d6ab RRC |
1120 | steam->quirks = id->driver_data; |
1121 | INIT_WORK(&steam->work_connect, steam_work_connect_cb); | |
cd438e57 | 1122 | INIT_DELAYED_WORK(&steam->mode_switch, steam_mode_switch_cb); |
2d3f53a8 | 1123 | INIT_LIST_HEAD(&steam->list); |
9cd61c81 | 1124 | INIT_WORK(&steam->rumble_work, steam_haptic_rumble_cb); |
c164d6ab | 1125 | |
c164d6ab RRC |
1126 | /* |
1127 | * With the real steam controller interface, do not connect hidraw. | |
1128 | * Instead, create the client_hid and connect that. | |
1129 | */ | |
1130 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_HIDRAW); | |
1131 | if (ret) | |
1132 | goto hid_hw_start_fail; | |
1133 | ||
cf28aee2 RRC |
1134 | ret = hid_hw_open(hdev); |
1135 | if (ret) { | |
1136 | hid_err(hdev, | |
1137 | "%s:hid_hw_open\n", | |
1138 | __func__); | |
1139 | goto hid_hw_open_fail; | |
1140 | } | |
1141 | ||
c164d6ab | 1142 | if (steam->quirks & STEAM_QUIRK_WIRELESS) { |
c164d6ab | 1143 | hid_info(hdev, "Steam wireless receiver connected"); |
20eee6e5 RRC |
1144 | /* If using a wireless adaptor ask for connection status */ |
1145 | steam->connected = false; | |
c164d6ab RRC |
1146 | steam_request_conn_status(steam); |
1147 | } else { | |
20eee6e5 RRC |
1148 | /* A wired connection is always present */ |
1149 | steam->connected = true; | |
c164d6ab RRC |
1150 | ret = steam_register(steam); |
1151 | if (ret) { | |
1152 | hid_err(hdev, | |
1153 | "%s:steam_register failed with error %d\n", | |
1154 | __func__, ret); | |
1155 | goto input_register_fail; | |
1156 | } | |
1157 | } | |
1158 | ||
691ead12 VP |
1159 | steam->client_hdev = steam_create_client_hid(hdev); |
1160 | if (IS_ERR(steam->client_hdev)) { | |
1161 | ret = PTR_ERR(steam->client_hdev); | |
1162 | goto client_hdev_fail; | |
1163 | } | |
1164 | steam->client_hdev->driver_data = steam; | |
1165 | ||
1166 | ret = hid_add_device(steam->client_hdev); | |
1167 | if (ret) | |
1168 | goto client_hdev_add_fail; | |
1169 | ||
c164d6ab RRC |
1170 | return 0; |
1171 | ||
c164d6ab RRC |
1172 | client_hdev_add_fail: |
1173 | hid_hw_stop(hdev); | |
c164d6ab | 1174 | client_hdev_fail: |
691ead12 VP |
1175 | hid_destroy_device(steam->client_hdev); |
1176 | input_register_fail: | |
1177 | hid_hw_open_fail: | |
1178 | hid_hw_start_fail: | |
c164d6ab | 1179 | cancel_work_sync(&steam->work_connect); |
cd438e57 | 1180 | cancel_delayed_work_sync(&steam->mode_switch); |
9cd61c81 | 1181 | cancel_work_sync(&steam->rumble_work); |
c164d6ab RRC |
1182 | steam_alloc_fail: |
1183 | hid_err(hdev, "%s: failed with error %d\n", | |
1184 | __func__, ret); | |
1185 | return ret; | |
1186 | } | |
1187 | ||
1188 | static void steam_remove(struct hid_device *hdev) | |
1189 | { | |
1190 | struct steam_device *steam = hid_get_drvdata(hdev); | |
1191 | ||
1192 | if (!steam || hdev->group == HID_GROUP_STEAM) { | |
1193 | hid_hw_stop(hdev); | |
1194 | return; | |
1195 | } | |
1196 | ||
cd438e57 | 1197 | cancel_delayed_work_sync(&steam->mode_switch); |
691ead12 | 1198 | cancel_work_sync(&steam->work_connect); |
c164d6ab | 1199 | hid_destroy_device(steam->client_hdev); |
9ba9498b | 1200 | steam->client_hdev = NULL; |
555b818a | 1201 | steam->client_opened = 0; |
c164d6ab RRC |
1202 | if (steam->quirks & STEAM_QUIRK_WIRELESS) { |
1203 | hid_info(hdev, "Steam wireless receiver disconnected"); | |
c164d6ab | 1204 | } |
cf28aee2 | 1205 | hid_hw_close(hdev); |
c164d6ab RRC |
1206 | hid_hw_stop(hdev); |
1207 | steam_unregister(steam); | |
1208 | } | |
1209 | ||
1210 | static void steam_do_connect_event(struct steam_device *steam, bool connected) | |
1211 | { | |
1212 | unsigned long flags; | |
385a4886 | 1213 | bool changed; |
c164d6ab RRC |
1214 | |
1215 | spin_lock_irqsave(&steam->lock, flags); | |
385a4886 | 1216 | changed = steam->connected != connected; |
c164d6ab RRC |
1217 | steam->connected = connected; |
1218 | spin_unlock_irqrestore(&steam->lock, flags); | |
1219 | ||
385a4886 | 1220 | if (changed && schedule_work(&steam->work_connect) == 0) |
c164d6ab RRC |
1221 | dbg_hid("%s: connected=%d event already queued\n", |
1222 | __func__, connected); | |
1223 | } | |
1224 | ||
1225 | /* | |
1226 | * Some input data in the protocol has the opposite sign. | |
1227 | * Clamp the values to 32767..-32767 so that the range is | |
1228 | * symmetrical and can be negated safely. | |
1229 | */ | |
1230 | static inline s16 steam_le16(u8 *data) | |
1231 | { | |
1232 | s16 x = (s16) le16_to_cpup((__le16 *)data); | |
1233 | ||
1234 | return x == -32768 ? -32767 : x; | |
1235 | } | |
1236 | ||
1237 | /* | |
1238 | * The size for this message payload is 60. | |
1239 | * The known values are: | |
1240 | * (* values are not sent through wireless) | |
1241 | * (* accelerator/gyro is disabled by default) | |
1242 | * Offset| Type | Mapped to |Meaning | |
1243 | * -------+-------+-----------+-------------------------- | |
1244 | * 4-7 | u32 | -- | sequence number | |
1245 | * 8-10 | 24bit | see below | buttons | |
1246 | * 11 | u8 | ABS_HAT2Y | left trigger | |
1247 | * 12 | u8 | ABS_HAT2X | right trigger | |
1248 | * 13-15 | -- | -- | always 0 | |
1249 | * 16-17 | s16 | ABS_X/ABS_HAT0X | X value | |
1250 | * 18-19 | s16 | ABS_Y/ABS_HAT0Y | Y value | |
1251 | * 20-21 | s16 | ABS_RX | right-pad X value | |
1252 | * 22-23 | s16 | ABS_RY | right-pad Y value | |
1253 | * 24-25 | s16 | -- | * left trigger | |
1254 | * 26-27 | s16 | -- | * right trigger | |
1255 | * 28-29 | s16 | -- | * accelerometer X value | |
1256 | * 30-31 | s16 | -- | * accelerometer Y value | |
1257 | * 32-33 | s16 | -- | * accelerometer Z value | |
1258 | * 34-35 | s16 | -- | gyro X value | |
1259 | * 36-36 | s16 | -- | gyro Y value | |
1260 | * 38-39 | s16 | -- | gyro Z value | |
1261 | * 40-41 | s16 | -- | quaternion W value | |
1262 | * 42-43 | s16 | -- | quaternion X value | |
1263 | * 44-45 | s16 | -- | quaternion Y value | |
1264 | * 46-47 | s16 | -- | quaternion Z value | |
1265 | * 48-49 | -- | -- | always 0 | |
1266 | * 50-51 | s16 | -- | * left trigger (uncalibrated) | |
1267 | * 52-53 | s16 | -- | * right trigger (uncalibrated) | |
1268 | * 54-55 | s16 | -- | * joystick X value (uncalibrated) | |
1269 | * 56-57 | s16 | -- | * joystick Y value (uncalibrated) | |
1270 | * 58-59 | s16 | -- | * left-pad X value | |
1271 | * 60-61 | s16 | -- | * left-pad Y value | |
1272 | * 62-63 | u16 | -- | * battery voltage | |
1273 | * | |
1274 | * The buttons are: | |
1275 | * Bit | Mapped to | Description | |
1276 | * ------+------------+-------------------------------- | |
1277 | * 8.0 | BTN_TR2 | right trigger fully pressed | |
1278 | * 8.1 | BTN_TL2 | left trigger fully pressed | |
1279 | * 8.2 | BTN_TR | right shoulder | |
1280 | * 8.3 | BTN_TL | left shoulder | |
1281 | * 8.4 | BTN_Y | button Y | |
1282 | * 8.5 | BTN_B | button B | |
1283 | * 8.6 | BTN_X | button X | |
1284 | * 8.7 | BTN_A | button A | |
9ba9498b VP |
1285 | * 9.0 | BTN_DPAD_UP | left-pad up |
1286 | * 9.1 | BTN_DPAD_RIGHT | left-pad right | |
1287 | * 9.2 | BTN_DPAD_LEFT | left-pad left | |
1288 | * 9.3 | BTN_DPAD_DOWN | left-pad down | |
c164d6ab RRC |
1289 | * 9.4 | BTN_SELECT | menu left |
1290 | * 9.5 | BTN_MODE | steam logo | |
1291 | * 9.6 | BTN_START | menu right | |
1292 | * 9.7 | BTN_GEAR_DOWN | left back lever | |
1293 | * 10.0 | BTN_GEAR_UP | right back lever | |
1294 | * 10.1 | -- | left-pad clicked | |
1295 | * 10.2 | BTN_THUMBR | right-pad clicked | |
1296 | * 10.3 | BTN_THUMB | left-pad touched (but see explanation below) | |
1297 | * 10.4 | BTN_THUMB2 | right-pad touched | |
1298 | * 10.5 | -- | unknown | |
1299 | * 10.6 | BTN_THUMBL | joystick clicked | |
1300 | * 10.7 | -- | lpad_and_joy | |
1301 | */ | |
1302 | ||
1303 | static void steam_do_input_event(struct steam_device *steam, | |
1304 | struct input_dev *input, u8 *data) | |
1305 | { | |
1306 | /* 24 bits of buttons */ | |
1307 | u8 b8, b9, b10; | |
1308 | s16 x, y; | |
1309 | bool lpad_touched, lpad_and_joy; | |
1310 | ||
1311 | b8 = data[8]; | |
1312 | b9 = data[9]; | |
1313 | b10 = data[10]; | |
1314 | ||
1315 | input_report_abs(input, ABS_HAT2Y, data[11]); | |
1316 | input_report_abs(input, ABS_HAT2X, data[12]); | |
1317 | ||
1318 | /* | |
1319 | * These two bits tells how to interpret the values X and Y. | |
1320 | * lpad_and_joy tells that the joystick and the lpad are used at the | |
1321 | * same time. | |
1322 | * lpad_touched tells whether X/Y are to be read as lpad coord or | |
1323 | * joystick values. | |
1324 | * (lpad_touched || lpad_and_joy) tells if the lpad is really touched. | |
1325 | */ | |
1326 | lpad_touched = b10 & BIT(3); | |
1327 | lpad_and_joy = b10 & BIT(7); | |
1328 | x = steam_le16(data + 16); | |
1329 | y = -steam_le16(data + 18); | |
1330 | ||
1331 | input_report_abs(input, lpad_touched ? ABS_HAT0X : ABS_X, x); | |
1332 | input_report_abs(input, lpad_touched ? ABS_HAT0Y : ABS_Y, y); | |
1333 | /* Check if joystick is centered */ | |
1334 | if (lpad_touched && !lpad_and_joy) { | |
1335 | input_report_abs(input, ABS_X, 0); | |
1336 | input_report_abs(input, ABS_Y, 0); | |
1337 | } | |
1338 | /* Check if lpad is untouched */ | |
1339 | if (!(lpad_touched || lpad_and_joy)) { | |
1340 | input_report_abs(input, ABS_HAT0X, 0); | |
1341 | input_report_abs(input, ABS_HAT0Y, 0); | |
1342 | } | |
1343 | ||
1344 | input_report_abs(input, ABS_RX, steam_le16(data + 20)); | |
1345 | input_report_abs(input, ABS_RY, -steam_le16(data + 22)); | |
1346 | ||
1347 | input_event(input, EV_KEY, BTN_TR2, !!(b8 & BIT(0))); | |
1348 | input_event(input, EV_KEY, BTN_TL2, !!(b8 & BIT(1))); | |
1349 | input_event(input, EV_KEY, BTN_TR, !!(b8 & BIT(2))); | |
1350 | input_event(input, EV_KEY, BTN_TL, !!(b8 & BIT(3))); | |
1351 | input_event(input, EV_KEY, BTN_Y, !!(b8 & BIT(4))); | |
1352 | input_event(input, EV_KEY, BTN_B, !!(b8 & BIT(5))); | |
1353 | input_event(input, EV_KEY, BTN_X, !!(b8 & BIT(6))); | |
1354 | input_event(input, EV_KEY, BTN_A, !!(b8 & BIT(7))); | |
1355 | input_event(input, EV_KEY, BTN_SELECT, !!(b9 & BIT(4))); | |
1356 | input_event(input, EV_KEY, BTN_MODE, !!(b9 & BIT(5))); | |
1357 | input_event(input, EV_KEY, BTN_START, !!(b9 & BIT(6))); | |
1358 | input_event(input, EV_KEY, BTN_GEAR_DOWN, !!(b9 & BIT(7))); | |
1359 | input_event(input, EV_KEY, BTN_GEAR_UP, !!(b10 & BIT(0))); | |
1360 | input_event(input, EV_KEY, BTN_THUMBR, !!(b10 & BIT(2))); | |
1361 | input_event(input, EV_KEY, BTN_THUMBL, !!(b10 & BIT(6))); | |
1362 | input_event(input, EV_KEY, BTN_THUMB, lpad_touched || lpad_and_joy); | |
1363 | input_event(input, EV_KEY, BTN_THUMB2, !!(b10 & BIT(4))); | |
1364 | input_event(input, EV_KEY, BTN_DPAD_UP, !!(b9 & BIT(0))); | |
1365 | input_event(input, EV_KEY, BTN_DPAD_RIGHT, !!(b9 & BIT(1))); | |
1366 | input_event(input, EV_KEY, BTN_DPAD_LEFT, !!(b9 & BIT(2))); | |
1367 | input_event(input, EV_KEY, BTN_DPAD_DOWN, !!(b9 & BIT(3))); | |
1368 | ||
1369 | input_sync(input); | |
1370 | } | |
1371 | ||
9ba9498b VP |
1372 | /* |
1373 | * The size for this message payload is 56. | |
1374 | * The known values are: | |
1375 | * Offset| Type | Mapped to |Meaning | |
1376 | * -------+-------+-----------+-------------------------- | |
1377 | * 4-7 | u32 | -- | sequence number | |
1378 | * 8-15 | u64 | see below | buttons | |
1379 | * 16-17 | s16 | ABS_HAT0X | left-pad X value | |
1380 | * 18-19 | s16 | ABS_HAT0Y | left-pad Y value | |
1381 | * 20-21 | s16 | ABS_HAT1X | right-pad X value | |
1382 | * 22-23 | s16 | ABS_HAT1Y | right-pad Y value | |
1383 | * 24-25 | s16 | -- | accelerometer X value | |
1384 | * 26-27 | s16 | -- | accelerometer Y value | |
1385 | * 28-29 | s16 | -- | accelerometer Z value | |
1386 | * 30-31 | s16 | -- | gyro X value | |
1387 | * 32-33 | s16 | -- | gyro Y value | |
1388 | * 34-35 | s16 | -- | gyro Z value | |
1389 | * 36-37 | s16 | -- | quaternion W value | |
1390 | * 38-39 | s16 | -- | quaternion X value | |
1391 | * 40-41 | s16 | -- | quaternion Y value | |
1392 | * 42-43 | s16 | -- | quaternion Z value | |
1393 | * 44-45 | u16 | ABS_HAT2Y | left trigger (uncalibrated) | |
1394 | * 46-47 | u16 | ABS_HAT2X | right trigger (uncalibrated) | |
1395 | * 48-49 | s16 | ABS_X | left joystick X | |
1396 | * 50-51 | s16 | ABS_Y | left joystick Y | |
1397 | * 52-53 | s16 | ABS_RX | right joystick X | |
1398 | * 54-55 | s16 | ABS_RY | right joystick Y | |
1399 | * 56-57 | u16 | -- | left pad pressure | |
1400 | * 58-59 | u16 | -- | right pad pressure | |
1401 | * | |
1402 | * The buttons are: | |
1403 | * Bit | Mapped to | Description | |
1404 | * ------+------------+-------------------------------- | |
1405 | * 8.0 | BTN_TR2 | right trigger fully pressed | |
1406 | * 8.1 | BTN_TL2 | left trigger fully pressed | |
1407 | * 8.2 | BTN_TR | right shoulder | |
1408 | * 8.3 | BTN_TL | left shoulder | |
1409 | * 8.4 | BTN_Y | button Y | |
1410 | * 8.5 | BTN_B | button B | |
1411 | * 8.6 | BTN_X | button X | |
1412 | * 8.7 | BTN_A | button A | |
1413 | * 9.0 | BTN_DPAD_UP | left-pad up | |
1414 | * 9.1 | BTN_DPAD_RIGHT | left-pad right | |
1415 | * 9.2 | BTN_DPAD_LEFT | left-pad left | |
1416 | * 9.3 | BTN_DPAD_DOWN | left-pad down | |
1417 | * 9.4 | BTN_SELECT | menu left | |
1418 | * 9.5 | BTN_MODE | steam logo | |
1419 | * 9.6 | BTN_START | menu right | |
1420 | * 9.7 | BTN_TRIGGER_HAPPY3 | left bottom grip button | |
1421 | * 10.0 | BTN_TRIGGER_HAPPY4 | right bottom grip button | |
1422 | * 10.1 | BTN_THUMB | left pad pressed | |
1423 | * 10.2 | BTN_THUMB2 | right pad pressed | |
1424 | * 10.3 | -- | left pad touched | |
1425 | * 10.4 | -- | right pad touched | |
1426 | * 10.5 | -- | unknown | |
1427 | * 10.6 | BTN_THUMBL | left joystick clicked | |
1428 | * 10.7 | -- | unknown | |
1429 | * 11.0 | -- | unknown | |
1430 | * 11.1 | -- | unknown | |
1431 | * 11.2 | BTN_THUMBR | right joystick clicked | |
1432 | * 11.3 | -- | unknown | |
1433 | * 11.4 | -- | unknown | |
1434 | * 11.5 | -- | unknown | |
1435 | * 11.6 | -- | unknown | |
1436 | * 11.7 | -- | unknown | |
1437 | * 12.0 | -- | unknown | |
1438 | * 12.1 | -- | unknown | |
1439 | * 12.2 | -- | unknown | |
1440 | * 12.3 | -- | unknown | |
1441 | * 12.4 | -- | unknown | |
1442 | * 12.5 | -- | unknown | |
1443 | * 12.6 | -- | unknown | |
1444 | * 12.7 | -- | unknown | |
1445 | * 13.0 | -- | unknown | |
1446 | * 13.1 | BTN_TRIGGER_HAPPY1 | left top grip button | |
1447 | * 13.2 | BTN_TRIGGER_HAPPY2 | right top grip button | |
1448 | * 13.3 | -- | unknown | |
1449 | * 13.4 | -- | unknown | |
1450 | * 13.5 | -- | unknown | |
1451 | * 13.6 | -- | left joystick touched | |
1452 | * 13.7 | -- | right joystick touched | |
1453 | * 14.0 | -- | unknown | |
1454 | * 14.1 | -- | unknown | |
1455 | * 14.2 | BTN_BASE | quick access button | |
1456 | * 14.3 | -- | unknown | |
1457 | * 14.4 | -- | unknown | |
1458 | * 14.5 | -- | unknown | |
1459 | * 14.6 | -- | unknown | |
1460 | * 14.7 | -- | unknown | |
1461 | * 15.0 | -- | unknown | |
1462 | * 15.1 | -- | unknown | |
1463 | * 15.2 | -- | unknown | |
1464 | * 15.3 | -- | unknown | |
1465 | * 15.4 | -- | unknown | |
1466 | * 15.5 | -- | unknown | |
1467 | * 15.6 | -- | unknown | |
1468 | * 15.7 | -- | unknown | |
1469 | */ | |
1470 | static void steam_do_deck_input_event(struct steam_device *steam, | |
1471 | struct input_dev *input, u8 *data) | |
1472 | { | |
1473 | u8 b8, b9, b10, b11, b13, b14; | |
1474 | bool lpad_touched, rpad_touched; | |
1475 | ||
1476 | b8 = data[8]; | |
1477 | b9 = data[9]; | |
1478 | b10 = data[10]; | |
1479 | b11 = data[11]; | |
1480 | b13 = data[13]; | |
1481 | b14 = data[14]; | |
1482 | ||
cd438e57 VP |
1483 | if (!(b9 & BIT(6)) && steam->did_mode_switch) { |
1484 | steam->did_mode_switch = false; | |
1485 | cancel_delayed_work_sync(&steam->mode_switch); | |
1486 | } else if (!steam->client_opened && (b9 & BIT(6)) && !steam->did_mode_switch) { | |
1487 | steam->did_mode_switch = true; | |
1488 | schedule_delayed_work(&steam->mode_switch, 45 * HZ / 100); | |
1489 | } | |
1490 | ||
1491 | if (!steam->gamepad_mode) | |
1492 | return; | |
1493 | ||
9ba9498b VP |
1494 | lpad_touched = b10 & BIT(3); |
1495 | rpad_touched = b10 & BIT(4); | |
1496 | ||
1497 | if (lpad_touched) { | |
1498 | input_report_abs(input, ABS_HAT0X, steam_le16(data + 16)); | |
1499 | input_report_abs(input, ABS_HAT0Y, steam_le16(data + 18)); | |
1500 | } else { | |
1501 | input_report_abs(input, ABS_HAT0X, 0); | |
1502 | input_report_abs(input, ABS_HAT0Y, 0); | |
1503 | } | |
1504 | ||
1505 | if (rpad_touched) { | |
1506 | input_report_abs(input, ABS_HAT1X, steam_le16(data + 20)); | |
1507 | input_report_abs(input, ABS_HAT1Y, steam_le16(data + 22)); | |
1508 | } else { | |
1509 | input_report_abs(input, ABS_HAT1X, 0); | |
1510 | input_report_abs(input, ABS_HAT1Y, 0); | |
1511 | } | |
1512 | ||
1513 | input_report_abs(input, ABS_X, steam_le16(data + 48)); | |
1514 | input_report_abs(input, ABS_Y, -steam_le16(data + 50)); | |
1515 | input_report_abs(input, ABS_RX, steam_le16(data + 52)); | |
1516 | input_report_abs(input, ABS_RY, -steam_le16(data + 54)); | |
1517 | ||
1518 | input_report_abs(input, ABS_HAT2Y, steam_le16(data + 44)); | |
1519 | input_report_abs(input, ABS_HAT2X, steam_le16(data + 46)); | |
1520 | ||
1521 | input_event(input, EV_KEY, BTN_TR2, !!(b8 & BIT(0))); | |
1522 | input_event(input, EV_KEY, BTN_TL2, !!(b8 & BIT(1))); | |
1523 | input_event(input, EV_KEY, BTN_TR, !!(b8 & BIT(2))); | |
1524 | input_event(input, EV_KEY, BTN_TL, !!(b8 & BIT(3))); | |
1525 | input_event(input, EV_KEY, BTN_Y, !!(b8 & BIT(4))); | |
1526 | input_event(input, EV_KEY, BTN_B, !!(b8 & BIT(5))); | |
1527 | input_event(input, EV_KEY, BTN_X, !!(b8 & BIT(6))); | |
1528 | input_event(input, EV_KEY, BTN_A, !!(b8 & BIT(7))); | |
1529 | input_event(input, EV_KEY, BTN_SELECT, !!(b9 & BIT(4))); | |
1530 | input_event(input, EV_KEY, BTN_MODE, !!(b9 & BIT(5))); | |
1531 | input_event(input, EV_KEY, BTN_START, !!(b9 & BIT(6))); | |
1532 | input_event(input, EV_KEY, BTN_TRIGGER_HAPPY3, !!(b9 & BIT(7))); | |
1533 | input_event(input, EV_KEY, BTN_TRIGGER_HAPPY4, !!(b10 & BIT(0))); | |
1534 | input_event(input, EV_KEY, BTN_THUMBL, !!(b10 & BIT(6))); | |
1535 | input_event(input, EV_KEY, BTN_THUMBR, !!(b11 & BIT(2))); | |
1536 | input_event(input, EV_KEY, BTN_DPAD_UP, !!(b9 & BIT(0))); | |
1537 | input_event(input, EV_KEY, BTN_DPAD_RIGHT, !!(b9 & BIT(1))); | |
1538 | input_event(input, EV_KEY, BTN_DPAD_LEFT, !!(b9 & BIT(2))); | |
1539 | input_event(input, EV_KEY, BTN_DPAD_DOWN, !!(b9 & BIT(3))); | |
1540 | input_event(input, EV_KEY, BTN_THUMB, !!(b10 & BIT(1))); | |
1541 | input_event(input, EV_KEY, BTN_THUMB2, !!(b10 & BIT(2))); | |
1542 | input_event(input, EV_KEY, BTN_TRIGGER_HAPPY1, !!(b13 & BIT(1))); | |
1543 | input_event(input, EV_KEY, BTN_TRIGGER_HAPPY2, !!(b13 & BIT(2))); | |
1544 | input_event(input, EV_KEY, BTN_BASE, !!(b14 & BIT(2))); | |
1545 | ||
1546 | input_sync(input); | |
1547 | } | |
1548 | ||
f8271979 RRC |
1549 | /* |
1550 | * The size for this message payload is 11. | |
1551 | * The known values are: | |
1552 | * Offset| Type | Meaning | |
1553 | * -------+-------+--------------------------- | |
1554 | * 4-7 | u32 | sequence number | |
1555 | * 8-11 | -- | always 0 | |
1556 | * 12-13 | u16 | voltage (mV) | |
1557 | * 14 | u8 | battery percent | |
1558 | */ | |
1559 | static void steam_do_battery_event(struct steam_device *steam, | |
1560 | struct power_supply *battery, u8 *data) | |
1561 | { | |
1562 | unsigned long flags; | |
1563 | ||
1564 | s16 volts = steam_le16(data + 12); | |
1565 | u8 batt = data[14]; | |
1566 | ||
1567 | /* Creating the battery may have failed */ | |
1568 | rcu_read_lock(); | |
1569 | battery = rcu_dereference(steam->battery); | |
1570 | if (likely(battery)) { | |
1571 | spin_lock_irqsave(&steam->lock, flags); | |
1572 | steam->voltage = volts; | |
1573 | steam->battery_charge = batt; | |
1574 | spin_unlock_irqrestore(&steam->lock, flags); | |
1575 | power_supply_changed(battery); | |
1576 | } | |
1577 | rcu_read_unlock(); | |
1578 | } | |
1579 | ||
c164d6ab RRC |
1580 | static int steam_raw_event(struct hid_device *hdev, |
1581 | struct hid_report *report, u8 *data, | |
1582 | int size) | |
1583 | { | |
1584 | struct steam_device *steam = hid_get_drvdata(hdev); | |
1585 | struct input_dev *input; | |
f8271979 | 1586 | struct power_supply *battery; |
c164d6ab RRC |
1587 | |
1588 | if (!steam) | |
1589 | return 0; | |
1590 | ||
1591 | if (steam->client_opened) | |
1592 | hid_input_report(steam->client_hdev, HID_FEATURE_REPORT, | |
1593 | data, size, 0); | |
1594 | /* | |
1595 | * All messages are size=64, all values little-endian. | |
1596 | * The format is: | |
1597 | * Offset| Meaning | |
1598 | * -------+-------------------------------------------- | |
1599 | * 0-1 | always 0x01, 0x00, maybe protocol version? | |
1600 | * 2 | type of message | |
1601 | * 3 | length of the real payload (not checked) | |
1602 | * 4-n | payload data, depends on the type | |
1603 | * | |
1604 | * There are these known types of message: | |
1605 | * 0x01: input data (60 bytes) | |
1606 | * 0x03: wireless connect/disconnect (1 byte) | |
1607 | * 0x04: battery status (11 bytes) | |
9ba9498b | 1608 | * 0x09: Steam Deck input data (56 bytes) |
c164d6ab RRC |
1609 | */ |
1610 | ||
1611 | if (size != 64 || data[0] != 1 || data[1] != 0) | |
1612 | return 0; | |
1613 | ||
1614 | switch (data[2]) { | |
4f9a5a97 | 1615 | case ID_CONTROLLER_STATE: |
c164d6ab RRC |
1616 | if (steam->client_opened) |
1617 | return 0; | |
1618 | rcu_read_lock(); | |
1619 | input = rcu_dereference(steam->input); | |
385a4886 | 1620 | if (likely(input)) |
c164d6ab | 1621 | steam_do_input_event(steam, input, data); |
c164d6ab RRC |
1622 | rcu_read_unlock(); |
1623 | break; | |
4f9a5a97 | 1624 | case ID_CONTROLLER_DECK_STATE: |
9ba9498b VP |
1625 | if (steam->client_opened) |
1626 | return 0; | |
1627 | rcu_read_lock(); | |
1628 | input = rcu_dereference(steam->input); | |
1629 | if (likely(input)) | |
1630 | steam_do_deck_input_event(steam, input, data); | |
1631 | rcu_read_unlock(); | |
1632 | break; | |
4f9a5a97 | 1633 | case ID_CONTROLLER_WIRELESS: |
c164d6ab RRC |
1634 | /* |
1635 | * The payload of this event is a single byte: | |
1636 | * 0x01: disconnected. | |
1637 | * 0x02: connected. | |
1638 | */ | |
1639 | switch (data[4]) { | |
1640 | case 0x01: | |
1641 | steam_do_connect_event(steam, false); | |
1642 | break; | |
1643 | case 0x02: | |
1644 | steam_do_connect_event(steam, true); | |
1645 | break; | |
1646 | } | |
1647 | break; | |
4f9a5a97 | 1648 | case ID_CONTROLLER_STATUS: |
f8271979 RRC |
1649 | if (steam->quirks & STEAM_QUIRK_WIRELESS) { |
1650 | rcu_read_lock(); | |
1651 | battery = rcu_dereference(steam->battery); | |
1652 | if (likely(battery)) { | |
1653 | steam_do_battery_event(steam, battery, data); | |
1654 | } else { | |
1655 | dbg_hid( | |
1656 | "%s: battery data without connect event\n", | |
1657 | __func__); | |
1658 | steam_do_connect_event(steam, true); | |
1659 | } | |
1660 | rcu_read_unlock(); | |
1661 | } | |
c164d6ab RRC |
1662 | break; |
1663 | } | |
1664 | return 0; | |
1665 | } | |
1666 | ||
1667 | static int steam_param_set_lizard_mode(const char *val, | |
1668 | const struct kernel_param *kp) | |
1669 | { | |
1670 | struct steam_device *steam; | |
1671 | int ret; | |
1672 | ||
1673 | ret = param_set_bool(val, kp); | |
1674 | if (ret) | |
1675 | return ret; | |
1676 | ||
1677 | mutex_lock(&steam_devices_lock); | |
1678 | list_for_each_entry(steam, &steam_devices, list) { | |
385a4886 RRC |
1679 | if (!steam->client_opened) |
1680 | steam_set_lizard_mode(steam, lizard_mode); | |
c164d6ab RRC |
1681 | } |
1682 | mutex_unlock(&steam_devices_lock); | |
1683 | return 0; | |
1684 | } | |
1685 | ||
1686 | static const struct kernel_param_ops steam_lizard_mode_ops = { | |
1687 | .set = steam_param_set_lizard_mode, | |
1688 | .get = param_get_bool, | |
1689 | }; | |
1690 | ||
1691 | module_param_cb(lizard_mode, &steam_lizard_mode_ops, &lizard_mode, 0644); | |
1692 | MODULE_PARM_DESC(lizard_mode, | |
1693 | "Enable mouse and keyboard emulation (lizard mode) when the gamepad is not in use"); | |
1694 | ||
1695 | static const struct hid_device_id steam_controllers[] = { | |
1696 | { /* Wired Steam Controller */ | |
1697 | HID_USB_DEVICE(USB_VENDOR_ID_VALVE, | |
1698 | USB_DEVICE_ID_STEAM_CONTROLLER) | |
1699 | }, | |
1700 | { /* Wireless Steam Controller */ | |
1701 | HID_USB_DEVICE(USB_VENDOR_ID_VALVE, | |
1702 | USB_DEVICE_ID_STEAM_CONTROLLER_WIRELESS), | |
1703 | .driver_data = STEAM_QUIRK_WIRELESS | |
1704 | }, | |
9ba9498b VP |
1705 | { /* Steam Deck */ |
1706 | HID_USB_DEVICE(USB_VENDOR_ID_VALVE, | |
1707 | USB_DEVICE_ID_STEAM_DECK), | |
1708 | .driver_data = STEAM_QUIRK_DECK | |
1709 | }, | |
c164d6ab RRC |
1710 | {} |
1711 | }; | |
1712 | ||
1713 | MODULE_DEVICE_TABLE(hid, steam_controllers); | |
1714 | ||
1715 | static struct hid_driver steam_controller_driver = { | |
1716 | .name = "hid-steam", | |
1717 | .id_table = steam_controllers, | |
1718 | .probe = steam_probe, | |
1719 | .remove = steam_remove, | |
1720 | .raw_event = steam_raw_event, | |
1721 | }; | |
1722 | ||
1723 | module_hid_driver(steam_controller_driver); |