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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. | |
74 | * Thanks to Valve for some valuable hints. | |
75 | */ | |
76 | #define STEAM_CMD_SET_MAPPINGS 0x80 | |
77 | #define STEAM_CMD_CLEAR_MAPPINGS 0x81 | |
78 | #define STEAM_CMD_GET_MAPPINGS 0x82 | |
79 | #define STEAM_CMD_GET_ATTRIB 0x83 | |
80 | #define STEAM_CMD_GET_ATTRIB_LABEL 0x84 | |
81 | #define STEAM_CMD_DEFAULT_MAPPINGS 0x85 | |
82 | #define STEAM_CMD_FACTORY_RESET 0x86 | |
83 | #define STEAM_CMD_WRITE_REGISTER 0x87 | |
84 | #define STEAM_CMD_CLEAR_REGISTER 0x88 | |
85 | #define STEAM_CMD_READ_REGISTER 0x89 | |
86 | #define STEAM_CMD_GET_REGISTER_LABEL 0x8a | |
87 | #define STEAM_CMD_GET_REGISTER_MAX 0x8b | |
88 | #define STEAM_CMD_GET_REGISTER_DEFAULT 0x8c | |
89 | #define STEAM_CMD_SET_MODE 0x8d | |
90 | #define STEAM_CMD_DEFAULT_MOUSE 0x8e | |
91 | #define STEAM_CMD_FORCEFEEDBAK 0x8f | |
92 | #define STEAM_CMD_REQUEST_COMM_STATUS 0xb4 | |
93 | #define STEAM_CMD_GET_SERIAL 0xae | |
9cd61c81 | 94 | #define STEAM_CMD_HAPTIC_RUMBLE 0xeb |
c164d6ab RRC |
95 | |
96 | /* Some useful register ids */ | |
97 | #define STEAM_REG_LPAD_MODE 0x07 | |
98 | #define STEAM_REG_RPAD_MODE 0x08 | |
99 | #define STEAM_REG_RPAD_MARGIN 0x18 | |
100 | #define STEAM_REG_LED 0x2d | |
101 | #define STEAM_REG_GYRO_MODE 0x30 | |
9ba9498b VP |
102 | #define STEAM_REG_LPAD_CLICK_PRESSURE 0x34 |
103 | #define STEAM_REG_RPAD_CLICK_PRESSURE 0x35 | |
c164d6ab RRC |
104 | |
105 | /* Raw event identifiers */ | |
106 | #define STEAM_EV_INPUT_DATA 0x01 | |
107 | #define STEAM_EV_CONNECT 0x03 | |
108 | #define STEAM_EV_BATTERY 0x04 | |
9ba9498b | 109 | #define STEAM_EV_DECK_INPUT_DATA 0x09 |
c164d6ab RRC |
110 | |
111 | /* Values for GYRO_MODE (bitmask) */ | |
112 | #define STEAM_GYRO_MODE_OFF 0x0000 | |
113 | #define STEAM_GYRO_MODE_STEERING 0x0001 | |
114 | #define STEAM_GYRO_MODE_TILT 0x0002 | |
115 | #define STEAM_GYRO_MODE_SEND_ORIENTATION 0x0004 | |
116 | #define STEAM_GYRO_MODE_SEND_RAW_ACCEL 0x0008 | |
117 | #define STEAM_GYRO_MODE_SEND_RAW_GYRO 0x0010 | |
118 | ||
119 | /* Other random constants */ | |
120 | #define STEAM_SERIAL_LEN 10 | |
121 | ||
122 | struct steam_device { | |
123 | struct list_head list; | |
124 | spinlock_t lock; | |
125 | struct hid_device *hdev, *client_hdev; | |
126 | struct mutex mutex; | |
385a4886 | 127 | bool client_opened; |
c164d6ab RRC |
128 | struct input_dev __rcu *input; |
129 | unsigned long quirks; | |
130 | struct work_struct work_connect; | |
131 | bool connected; | |
132 | char serial_no[STEAM_SERIAL_LEN + 1]; | |
f8271979 RRC |
133 | struct power_supply_desc battery_desc; |
134 | struct power_supply __rcu *battery; | |
135 | u8 battery_charge; | |
136 | u16 voltage; | |
9ba9498b | 137 | struct delayed_work heartbeat; |
9cd61c81 VP |
138 | struct work_struct rumble_work; |
139 | u16 rumble_left; | |
140 | u16 rumble_right; | |
c164d6ab RRC |
141 | }; |
142 | ||
143 | static int steam_recv_report(struct steam_device *steam, | |
144 | u8 *data, int size) | |
145 | { | |
146 | struct hid_report *r; | |
147 | u8 *buf; | |
148 | int ret; | |
149 | ||
150 | r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0]; | |
cd11d1a6 LJ |
151 | if (!r) { |
152 | hid_err(steam->hdev, "No HID_FEATURE_REPORT submitted - nothing to read\n"); | |
153 | return -EINVAL; | |
154 | } | |
155 | ||
c164d6ab RRC |
156 | if (hid_report_len(r) < 64) |
157 | return -EINVAL; | |
158 | ||
159 | buf = hid_alloc_report_buf(r, GFP_KERNEL); | |
160 | if (!buf) | |
161 | return -ENOMEM; | |
162 | ||
163 | /* | |
164 | * The report ID is always 0, so strip the first byte from the output. | |
165 | * hid_report_len() is not counting the report ID, so +1 to the length | |
166 | * or else we get a EOVERFLOW. We are safe from a buffer overflow | |
167 | * because hid_alloc_report_buf() allocates +7 bytes. | |
168 | */ | |
169 | ret = hid_hw_raw_request(steam->hdev, 0x00, | |
170 | buf, hid_report_len(r) + 1, | |
171 | HID_FEATURE_REPORT, HID_REQ_GET_REPORT); | |
172 | if (ret > 0) | |
173 | memcpy(data, buf + 1, min(size, ret - 1)); | |
174 | kfree(buf); | |
175 | return ret; | |
176 | } | |
177 | ||
178 | static int steam_send_report(struct steam_device *steam, | |
179 | u8 *cmd, int size) | |
180 | { | |
181 | struct hid_report *r; | |
182 | u8 *buf; | |
183 | unsigned int retries = 50; | |
184 | int ret; | |
185 | ||
186 | r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0]; | |
cd11d1a6 LJ |
187 | if (!r) { |
188 | hid_err(steam->hdev, "No HID_FEATURE_REPORT submitted - nothing to read\n"); | |
189 | return -EINVAL; | |
190 | } | |
191 | ||
c164d6ab RRC |
192 | if (hid_report_len(r) < 64) |
193 | return -EINVAL; | |
194 | ||
195 | buf = hid_alloc_report_buf(r, GFP_KERNEL); | |
196 | if (!buf) | |
197 | return -ENOMEM; | |
198 | ||
199 | /* The report ID is always 0 */ | |
200 | memcpy(buf + 1, cmd, size); | |
201 | ||
202 | /* | |
203 | * Sometimes the wireless controller fails with EPIPE | |
204 | * when sending a feature report. | |
205 | * Doing a HID_REQ_GET_REPORT and waiting for a while | |
206 | * seems to fix that. | |
207 | */ | |
208 | do { | |
209 | ret = hid_hw_raw_request(steam->hdev, 0, | |
9ba9498b | 210 | buf, max(size, 64) + 1, |
c164d6ab RRC |
211 | HID_FEATURE_REPORT, HID_REQ_SET_REPORT); |
212 | if (ret != -EPIPE) | |
213 | break; | |
214 | msleep(20); | |
215 | } while (--retries); | |
216 | ||
217 | kfree(buf); | |
218 | if (ret < 0) | |
219 | hid_err(steam->hdev, "%s: error %d (%*ph)\n", __func__, | |
220 | ret, size, cmd); | |
221 | return ret; | |
222 | } | |
223 | ||
224 | static inline int steam_send_report_byte(struct steam_device *steam, u8 cmd) | |
225 | { | |
226 | return steam_send_report(steam, &cmd, 1); | |
227 | } | |
228 | ||
229 | static int steam_write_registers(struct steam_device *steam, | |
230 | /* u8 reg, u16 val */...) | |
231 | { | |
232 | /* Send: 0x87 len (reg valLo valHi)* */ | |
233 | u8 reg; | |
234 | u16 val; | |
235 | u8 cmd[64] = {STEAM_CMD_WRITE_REGISTER, 0x00}; | |
9ba9498b | 236 | int ret; |
c164d6ab RRC |
237 | va_list args; |
238 | ||
239 | va_start(args, steam); | |
240 | for (;;) { | |
241 | reg = va_arg(args, int); | |
242 | if (reg == 0) | |
243 | break; | |
244 | val = va_arg(args, int); | |
245 | cmd[cmd[1] + 2] = reg; | |
246 | cmd[cmd[1] + 3] = val & 0xff; | |
247 | cmd[cmd[1] + 4] = val >> 8; | |
248 | cmd[1] += 3; | |
249 | } | |
250 | va_end(args); | |
251 | ||
9ba9498b VP |
252 | ret = steam_send_report(steam, cmd, 2 + cmd[1]); |
253 | if (ret < 0) | |
254 | return ret; | |
255 | ||
256 | /* | |
257 | * Sometimes a lingering report for this command can | |
258 | * get read back instead of the last set report if | |
259 | * this isn't explicitly queried | |
260 | */ | |
261 | return steam_recv_report(steam, cmd, 2 + cmd[1]); | |
c164d6ab RRC |
262 | } |
263 | ||
264 | static int steam_get_serial(struct steam_device *steam) | |
265 | { | |
266 | /* | |
267 | * Send: 0xae 0x15 0x01 | |
268 | * Recv: 0xae 0x15 0x01 serialnumber (10 chars) | |
269 | */ | |
270 | int ret; | |
271 | u8 cmd[] = {STEAM_CMD_GET_SERIAL, 0x15, 0x01}; | |
272 | u8 reply[3 + STEAM_SERIAL_LEN + 1]; | |
273 | ||
274 | ret = steam_send_report(steam, cmd, sizeof(cmd)); | |
275 | if (ret < 0) | |
276 | return ret; | |
277 | ret = steam_recv_report(steam, reply, sizeof(reply)); | |
278 | if (ret < 0) | |
279 | return ret; | |
280 | if (reply[0] != 0xae || reply[1] != 0x15 || reply[2] != 0x01) | |
281 | return -EIO; | |
282 | reply[3 + STEAM_SERIAL_LEN] = 0; | |
eeeec27d | 283 | strscpy(steam->serial_no, reply + 3, sizeof(steam->serial_no)); |
c164d6ab RRC |
284 | return 0; |
285 | } | |
286 | ||
287 | /* | |
288 | * This command requests the wireless adaptor to post an event | |
289 | * with the connection status. Useful if this driver is loaded when | |
290 | * the controller is already connected. | |
291 | */ | |
292 | static inline int steam_request_conn_status(struct steam_device *steam) | |
293 | { | |
294 | return steam_send_report_byte(steam, STEAM_CMD_REQUEST_COMM_STATUS); | |
295 | } | |
296 | ||
9cd61c81 VP |
297 | static inline int steam_haptic_rumble(struct steam_device *steam, |
298 | u16 intensity, u16 left_speed, u16 right_speed, | |
299 | u8 left_gain, u8 right_gain) | |
300 | { | |
301 | u8 report[11] = {STEAM_CMD_HAPTIC_RUMBLE, 9}; | |
302 | ||
303 | report[3] = intensity & 0xFF; | |
304 | report[4] = intensity >> 8; | |
305 | report[5] = left_speed & 0xFF; | |
306 | report[6] = left_speed >> 8; | |
307 | report[7] = right_speed & 0xFF; | |
308 | report[8] = right_speed >> 8; | |
309 | report[9] = left_gain; | |
310 | report[10] = right_gain; | |
311 | ||
312 | return steam_send_report(steam, report, sizeof(report)); | |
313 | } | |
314 | ||
315 | static void steam_haptic_rumble_cb(struct work_struct *work) | |
316 | { | |
317 | struct steam_device *steam = container_of(work, struct steam_device, | |
318 | rumble_work); | |
319 | steam_haptic_rumble(steam, 0, steam->rumble_left, | |
320 | steam->rumble_right, 2, 0); | |
321 | } | |
322 | ||
323 | #ifdef CONFIG_STEAM_FF | |
324 | static int steam_play_effect(struct input_dev *dev, void *data, | |
325 | struct ff_effect *effect) | |
326 | { | |
327 | struct steam_device *steam = input_get_drvdata(dev); | |
328 | ||
329 | steam->rumble_left = effect->u.rumble.strong_magnitude; | |
330 | steam->rumble_right = effect->u.rumble.weak_magnitude; | |
331 | ||
332 | return schedule_work(&steam->rumble_work); | |
333 | } | |
334 | #endif | |
335 | ||
c164d6ab RRC |
336 | static void steam_set_lizard_mode(struct steam_device *steam, bool enable) |
337 | { | |
338 | if (enable) { | |
339 | /* enable esc, enter, cursors */ | |
340 | steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MAPPINGS); | |
341 | /* enable mouse */ | |
342 | steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MOUSE); | |
343 | steam_write_registers(steam, | |
344 | STEAM_REG_RPAD_MARGIN, 0x01, /* enable margin */ | |
345 | 0); | |
9ba9498b VP |
346 | |
347 | cancel_delayed_work_sync(&steam->heartbeat); | |
c164d6ab RRC |
348 | } else { |
349 | /* disable esc, enter, cursor */ | |
350 | steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS); | |
9ba9498b VP |
351 | |
352 | if (steam->quirks & STEAM_QUIRK_DECK) { | |
353 | steam_write_registers(steam, | |
354 | STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */ | |
355 | STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */ | |
356 | STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */ | |
357 | STEAM_REG_LPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */ | |
358 | STEAM_REG_RPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */ | |
359 | 0); | |
360 | /* | |
361 | * The Steam Deck has a watchdog that automatically enables | |
362 | * lizard mode if it doesn't see any traffic for too long | |
363 | */ | |
364 | if (!work_busy(&steam->heartbeat.work)) | |
365 | schedule_delayed_work(&steam->heartbeat, 5 * HZ); | |
366 | } else { | |
367 | steam_write_registers(steam, | |
368 | STEAM_REG_RPAD_MARGIN, 0x00, /* disable margin */ | |
369 | STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */ | |
370 | STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */ | |
371 | 0); | |
372 | } | |
c164d6ab RRC |
373 | } |
374 | } | |
375 | ||
c164d6ab RRC |
376 | static int steam_input_open(struct input_dev *dev) |
377 | { | |
378 | struct steam_device *steam = input_get_drvdata(dev); | |
c164d6ab RRC |
379 | |
380 | mutex_lock(&steam->mutex); | |
c164d6ab RRC |
381 | if (!steam->client_opened && lizard_mode) |
382 | steam_set_lizard_mode(steam, false); | |
383 | mutex_unlock(&steam->mutex); | |
384 | return 0; | |
385 | } | |
386 | ||
387 | static void steam_input_close(struct input_dev *dev) | |
388 | { | |
389 | struct steam_device *steam = input_get_drvdata(dev); | |
390 | ||
391 | mutex_lock(&steam->mutex); | |
c164d6ab RRC |
392 | if (!steam->client_opened && lizard_mode) |
393 | steam_set_lizard_mode(steam, true); | |
394 | mutex_unlock(&steam->mutex); | |
c164d6ab RRC |
395 | } |
396 | ||
f8271979 RRC |
397 | static enum power_supply_property steam_battery_props[] = { |
398 | POWER_SUPPLY_PROP_PRESENT, | |
399 | POWER_SUPPLY_PROP_SCOPE, | |
400 | POWER_SUPPLY_PROP_VOLTAGE_NOW, | |
401 | POWER_SUPPLY_PROP_CAPACITY, | |
402 | }; | |
403 | ||
404 | static int steam_battery_get_property(struct power_supply *psy, | |
405 | enum power_supply_property psp, | |
406 | union power_supply_propval *val) | |
407 | { | |
408 | struct steam_device *steam = power_supply_get_drvdata(psy); | |
409 | unsigned long flags; | |
410 | s16 volts; | |
411 | u8 batt; | |
412 | int ret = 0; | |
413 | ||
414 | spin_lock_irqsave(&steam->lock, flags); | |
415 | volts = steam->voltage; | |
416 | batt = steam->battery_charge; | |
417 | spin_unlock_irqrestore(&steam->lock, flags); | |
418 | ||
419 | switch (psp) { | |
420 | case POWER_SUPPLY_PROP_PRESENT: | |
421 | val->intval = 1; | |
422 | break; | |
423 | case POWER_SUPPLY_PROP_SCOPE: | |
424 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
425 | break; | |
426 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: | |
427 | val->intval = volts * 1000; /* mV -> uV */ | |
428 | break; | |
429 | case POWER_SUPPLY_PROP_CAPACITY: | |
430 | val->intval = batt; | |
431 | break; | |
432 | default: | |
433 | ret = -EINVAL; | |
434 | break; | |
435 | } | |
436 | return ret; | |
437 | } | |
438 | ||
439 | static int steam_battery_register(struct steam_device *steam) | |
440 | { | |
441 | struct power_supply *battery; | |
442 | struct power_supply_config battery_cfg = { .drv_data = steam, }; | |
443 | unsigned long flags; | |
444 | int ret; | |
445 | ||
446 | steam->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY; | |
447 | steam->battery_desc.properties = steam_battery_props; | |
448 | steam->battery_desc.num_properties = ARRAY_SIZE(steam_battery_props); | |
449 | steam->battery_desc.get_property = steam_battery_get_property; | |
450 | steam->battery_desc.name = devm_kasprintf(&steam->hdev->dev, | |
451 | GFP_KERNEL, "steam-controller-%s-battery", | |
452 | steam->serial_no); | |
453 | if (!steam->battery_desc.name) | |
454 | return -ENOMEM; | |
455 | ||
456 | /* avoid the warning of 0% battery while waiting for the first info */ | |
457 | spin_lock_irqsave(&steam->lock, flags); | |
458 | steam->voltage = 3000; | |
459 | steam->battery_charge = 100; | |
460 | spin_unlock_irqrestore(&steam->lock, flags); | |
461 | ||
462 | battery = power_supply_register(&steam->hdev->dev, | |
463 | &steam->battery_desc, &battery_cfg); | |
464 | if (IS_ERR(battery)) { | |
465 | ret = PTR_ERR(battery); | |
466 | hid_err(steam->hdev, | |
467 | "%s:power_supply_register failed with error %d\n", | |
468 | __func__, ret); | |
469 | return ret; | |
470 | } | |
471 | rcu_assign_pointer(steam->battery, battery); | |
472 | power_supply_powers(battery, &steam->hdev->dev); | |
473 | return 0; | |
474 | } | |
475 | ||
385a4886 | 476 | static int steam_input_register(struct steam_device *steam) |
c164d6ab RRC |
477 | { |
478 | struct hid_device *hdev = steam->hdev; | |
479 | struct input_dev *input; | |
480 | int ret; | |
481 | ||
482 | rcu_read_lock(); | |
483 | input = rcu_dereference(steam->input); | |
484 | rcu_read_unlock(); | |
485 | if (input) { | |
486 | dbg_hid("%s: already connected\n", __func__); | |
487 | return 0; | |
488 | } | |
489 | ||
c164d6ab RRC |
490 | input = input_allocate_device(); |
491 | if (!input) | |
492 | return -ENOMEM; | |
493 | ||
494 | input_set_drvdata(input, steam); | |
495 | input->dev.parent = &hdev->dev; | |
496 | input->open = steam_input_open; | |
497 | input->close = steam_input_close; | |
498 | ||
9ba9498b VP |
499 | input->name = (steam->quirks & STEAM_QUIRK_WIRELESS) ? "Wireless Steam Controller" : |
500 | (steam->quirks & STEAM_QUIRK_DECK) ? "Steam Deck" : | |
c164d6ab RRC |
501 | "Steam Controller"; |
502 | input->phys = hdev->phys; | |
503 | input->uniq = steam->serial_no; | |
504 | input->id.bustype = hdev->bus; | |
505 | input->id.vendor = hdev->vendor; | |
506 | input->id.product = hdev->product; | |
507 | input->id.version = hdev->version; | |
508 | ||
509 | input_set_capability(input, EV_KEY, BTN_TR2); | |
510 | input_set_capability(input, EV_KEY, BTN_TL2); | |
511 | input_set_capability(input, EV_KEY, BTN_TR); | |
512 | input_set_capability(input, EV_KEY, BTN_TL); | |
513 | input_set_capability(input, EV_KEY, BTN_Y); | |
514 | input_set_capability(input, EV_KEY, BTN_B); | |
515 | input_set_capability(input, EV_KEY, BTN_X); | |
516 | input_set_capability(input, EV_KEY, BTN_A); | |
517 | input_set_capability(input, EV_KEY, BTN_DPAD_UP); | |
518 | input_set_capability(input, EV_KEY, BTN_DPAD_RIGHT); | |
519 | input_set_capability(input, EV_KEY, BTN_DPAD_LEFT); | |
520 | input_set_capability(input, EV_KEY, BTN_DPAD_DOWN); | |
521 | input_set_capability(input, EV_KEY, BTN_SELECT); | |
522 | input_set_capability(input, EV_KEY, BTN_MODE); | |
523 | input_set_capability(input, EV_KEY, BTN_START); | |
c164d6ab RRC |
524 | input_set_capability(input, EV_KEY, BTN_THUMBR); |
525 | input_set_capability(input, EV_KEY, BTN_THUMBL); | |
526 | input_set_capability(input, EV_KEY, BTN_THUMB); | |
527 | input_set_capability(input, EV_KEY, BTN_THUMB2); | |
9ba9498b VP |
528 | if (steam->quirks & STEAM_QUIRK_DECK) { |
529 | input_set_capability(input, EV_KEY, BTN_BASE); | |
530 | input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY1); | |
531 | input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY2); | |
532 | input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY3); | |
533 | input_set_capability(input, EV_KEY, BTN_TRIGGER_HAPPY4); | |
534 | } else { | |
535 | input_set_capability(input, EV_KEY, BTN_GEAR_DOWN); | |
536 | input_set_capability(input, EV_KEY, BTN_GEAR_UP); | |
537 | } | |
c164d6ab | 538 | |
c164d6ab RRC |
539 | input_set_abs_params(input, ABS_X, -32767, 32767, 0, 0); |
540 | input_set_abs_params(input, ABS_Y, -32767, 32767, 0, 0); | |
9ba9498b | 541 | |
c164d6ab RRC |
542 | input_set_abs_params(input, ABS_HAT0X, -32767, 32767, |
543 | STEAM_PAD_FUZZ, 0); | |
544 | input_set_abs_params(input, ABS_HAT0Y, -32767, 32767, | |
545 | STEAM_PAD_FUZZ, 0); | |
9ba9498b VP |
546 | |
547 | if (steam->quirks & STEAM_QUIRK_DECK) { | |
548 | input_set_abs_params(input, ABS_HAT2Y, 0, 32767, 0, 0); | |
549 | input_set_abs_params(input, ABS_HAT2X, 0, 32767, 0, 0); | |
550 | ||
551 | input_set_abs_params(input, ABS_RX, -32767, 32767, 0, 0); | |
552 | input_set_abs_params(input, ABS_RY, -32767, 32767, 0, 0); | |
553 | ||
554 | input_set_abs_params(input, ABS_HAT1X, -32767, 32767, | |
555 | STEAM_PAD_FUZZ, 0); | |
556 | input_set_abs_params(input, ABS_HAT1Y, -32767, 32767, | |
557 | STEAM_PAD_FUZZ, 0); | |
558 | ||
559 | input_abs_set_res(input, ABS_X, STEAM_DECK_JOYSTICK_RESOLUTION); | |
560 | input_abs_set_res(input, ABS_Y, STEAM_DECK_JOYSTICK_RESOLUTION); | |
561 | input_abs_set_res(input, ABS_RX, STEAM_DECK_JOYSTICK_RESOLUTION); | |
562 | input_abs_set_res(input, ABS_RY, STEAM_DECK_JOYSTICK_RESOLUTION); | |
563 | input_abs_set_res(input, ABS_HAT1X, STEAM_PAD_RESOLUTION); | |
564 | input_abs_set_res(input, ABS_HAT1Y, STEAM_PAD_RESOLUTION); | |
565 | input_abs_set_res(input, ABS_HAT2Y, STEAM_DECK_TRIGGER_RESOLUTION); | |
566 | input_abs_set_res(input, ABS_HAT2X, STEAM_DECK_TRIGGER_RESOLUTION); | |
567 | } else { | |
568 | input_set_abs_params(input, ABS_HAT2Y, 0, 255, 0, 0); | |
569 | input_set_abs_params(input, ABS_HAT2X, 0, 255, 0, 0); | |
570 | ||
571 | input_set_abs_params(input, ABS_RX, -32767, 32767, | |
572 | STEAM_PAD_FUZZ, 0); | |
573 | input_set_abs_params(input, ABS_RY, -32767, 32767, | |
574 | STEAM_PAD_FUZZ, 0); | |
575 | ||
576 | input_abs_set_res(input, ABS_X, STEAM_JOYSTICK_RESOLUTION); | |
577 | input_abs_set_res(input, ABS_Y, STEAM_JOYSTICK_RESOLUTION); | |
578 | input_abs_set_res(input, ABS_RX, STEAM_PAD_RESOLUTION); | |
579 | input_abs_set_res(input, ABS_RY, STEAM_PAD_RESOLUTION); | |
580 | input_abs_set_res(input, ABS_HAT2Y, STEAM_TRIGGER_RESOLUTION); | |
581 | input_abs_set_res(input, ABS_HAT2X, STEAM_TRIGGER_RESOLUTION); | |
582 | } | |
c164d6ab RRC |
583 | input_abs_set_res(input, ABS_HAT0X, STEAM_PAD_RESOLUTION); |
584 | input_abs_set_res(input, ABS_HAT0Y, STEAM_PAD_RESOLUTION); | |
c164d6ab | 585 | |
9cd61c81 VP |
586 | #ifdef CONFIG_STEAM_FF |
587 | if (steam->quirks & STEAM_QUIRK_DECK) { | |
588 | input_set_capability(input, EV_FF, FF_RUMBLE); | |
589 | ret = input_ff_create_memless(input, NULL, steam_play_effect); | |
590 | if (ret) | |
591 | goto input_register_fail; | |
592 | } | |
593 | #endif | |
c164d6ab RRC |
594 | |
595 | ret = input_register_device(input); | |
596 | if (ret) | |
597 | goto input_register_fail; | |
598 | ||
599 | rcu_assign_pointer(steam->input, input); | |
c164d6ab RRC |
600 | return 0; |
601 | ||
602 | input_register_fail: | |
603 | input_free_device(input); | |
604 | return ret; | |
605 | } | |
606 | ||
385a4886 | 607 | static void steam_input_unregister(struct steam_device *steam) |
c164d6ab RRC |
608 | { |
609 | struct input_dev *input; | |
385a4886 RRC |
610 | rcu_read_lock(); |
611 | input = rcu_dereference(steam->input); | |
612 | rcu_read_unlock(); | |
613 | if (!input) | |
614 | return; | |
615 | RCU_INIT_POINTER(steam->input, NULL); | |
616 | synchronize_rcu(); | |
617 | input_unregister_device(input); | |
618 | } | |
619 | ||
620 | static void steam_battery_unregister(struct steam_device *steam) | |
621 | { | |
f8271979 | 622 | struct power_supply *battery; |
c164d6ab RRC |
623 | |
624 | rcu_read_lock(); | |
f8271979 | 625 | battery = rcu_dereference(steam->battery); |
c164d6ab RRC |
626 | rcu_read_unlock(); |
627 | ||
385a4886 RRC |
628 | if (!battery) |
629 | return; | |
630 | RCU_INIT_POINTER(steam->battery, NULL); | |
631 | synchronize_rcu(); | |
632 | power_supply_unregister(battery); | |
633 | } | |
634 | ||
635 | static int steam_register(struct steam_device *steam) | |
636 | { | |
637 | int ret; | |
6b538cc2 | 638 | bool client_opened; |
385a4886 RRC |
639 | |
640 | /* | |
641 | * This function can be called several times in a row with the | |
642 | * wireless adaptor, without steam_unregister() between them, because | |
643 | * another client send a get_connection_status command, for example. | |
644 | * The battery and serial number are set just once per device. | |
645 | */ | |
646 | if (!steam->serial_no[0]) { | |
647 | /* | |
648 | * Unlikely, but getting the serial could fail, and it is not so | |
649 | * important, so make up a serial number and go on. | |
650 | */ | |
6b538cc2 | 651 | mutex_lock(&steam->mutex); |
385a4886 | 652 | if (steam_get_serial(steam) < 0) |
eeeec27d | 653 | strscpy(steam->serial_no, "XXXXXXXXXX", |
385a4886 | 654 | sizeof(steam->serial_no)); |
6b538cc2 | 655 | mutex_unlock(&steam->mutex); |
385a4886 RRC |
656 | |
657 | hid_info(steam->hdev, "Steam Controller '%s' connected", | |
658 | steam->serial_no); | |
659 | ||
660 | /* ignore battery errors, we can live without it */ | |
661 | if (steam->quirks & STEAM_QUIRK_WIRELESS) | |
662 | steam_battery_register(steam); | |
663 | ||
664 | mutex_lock(&steam_devices_lock); | |
2d3f53a8 RRC |
665 | if (list_empty(&steam->list)) |
666 | list_add(&steam->list, &steam_devices); | |
385a4886 | 667 | mutex_unlock(&steam_devices_lock); |
f8271979 | 668 | } |
385a4886 RRC |
669 | |
670 | mutex_lock(&steam->mutex); | |
6b538cc2 RRC |
671 | client_opened = steam->client_opened; |
672 | if (!client_opened) | |
385a4886 | 673 | steam_set_lizard_mode(steam, lizard_mode); |
6b538cc2 RRC |
674 | mutex_unlock(&steam->mutex); |
675 | ||
676 | if (!client_opened) | |
385a4886 | 677 | ret = steam_input_register(steam); |
6b538cc2 | 678 | else |
385a4886 | 679 | ret = 0; |
385a4886 RRC |
680 | |
681 | return ret; | |
682 | } | |
683 | ||
684 | static void steam_unregister(struct steam_device *steam) | |
685 | { | |
686 | steam_battery_unregister(steam); | |
687 | steam_input_unregister(steam); | |
688 | if (steam->serial_no[0]) { | |
c164d6ab RRC |
689 | hid_info(steam->hdev, "Steam Controller '%s' disconnected", |
690 | steam->serial_no); | |
385a4886 | 691 | mutex_lock(&steam_devices_lock); |
2d3f53a8 | 692 | list_del_init(&steam->list); |
385a4886 RRC |
693 | mutex_unlock(&steam_devices_lock); |
694 | steam->serial_no[0] = 0; | |
c164d6ab RRC |
695 | } |
696 | } | |
697 | ||
698 | static void steam_work_connect_cb(struct work_struct *work) | |
699 | { | |
700 | struct steam_device *steam = container_of(work, struct steam_device, | |
701 | work_connect); | |
702 | unsigned long flags; | |
703 | bool connected; | |
704 | int ret; | |
705 | ||
706 | spin_lock_irqsave(&steam->lock, flags); | |
707 | connected = steam->connected; | |
708 | spin_unlock_irqrestore(&steam->lock, flags); | |
709 | ||
710 | if (connected) { | |
711 | ret = steam_register(steam); | |
712 | if (ret) { | |
713 | hid_err(steam->hdev, | |
714 | "%s:steam_register failed with error %d\n", | |
715 | __func__, ret); | |
716 | } | |
717 | } else { | |
718 | steam_unregister(steam); | |
719 | } | |
720 | } | |
721 | ||
722 | static bool steam_is_valve_interface(struct hid_device *hdev) | |
723 | { | |
724 | struct hid_report_enum *rep_enum; | |
725 | ||
726 | /* | |
727 | * The wired device creates 3 interfaces: | |
728 | * 0: emulated mouse. | |
729 | * 1: emulated keyboard. | |
730 | * 2: the real game pad. | |
731 | * The wireless device creates 5 interfaces: | |
732 | * 0: emulated keyboard. | |
733 | * 1-4: slots where up to 4 real game pads will be connected to. | |
734 | * We know which one is the real gamepad interface because they are the | |
735 | * only ones with a feature report. | |
736 | */ | |
737 | rep_enum = &hdev->report_enum[HID_FEATURE_REPORT]; | |
738 | return !list_empty(&rep_enum->report_list); | |
739 | } | |
740 | ||
9ba9498b VP |
741 | static void steam_lizard_mode_heartbeat(struct work_struct *work) |
742 | { | |
743 | struct steam_device *steam = container_of(work, struct steam_device, | |
744 | heartbeat.work); | |
745 | ||
746 | mutex_lock(&steam->mutex); | |
747 | if (!steam->client_opened && steam->client_hdev) { | |
748 | steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS); | |
749 | steam_write_registers(steam, | |
750 | STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */ | |
751 | 0); | |
752 | schedule_delayed_work(&steam->heartbeat, 5 * HZ); | |
753 | } | |
754 | mutex_unlock(&steam->mutex); | |
755 | } | |
756 | ||
c164d6ab RRC |
757 | static int steam_client_ll_parse(struct hid_device *hdev) |
758 | { | |
4bff980f | 759 | struct steam_device *steam = hdev->driver_data; |
c164d6ab RRC |
760 | |
761 | return hid_parse_report(hdev, steam->hdev->dev_rdesc, | |
762 | steam->hdev->dev_rsize); | |
763 | } | |
764 | ||
765 | static int steam_client_ll_start(struct hid_device *hdev) | |
766 | { | |
767 | return 0; | |
768 | } | |
769 | ||
770 | static void steam_client_ll_stop(struct hid_device *hdev) | |
771 | { | |
772 | } | |
773 | ||
774 | static int steam_client_ll_open(struct hid_device *hdev) | |
775 | { | |
4bff980f | 776 | struct steam_device *steam = hdev->driver_data; |
c164d6ab RRC |
777 | |
778 | mutex_lock(&steam->mutex); | |
779 | steam->client_opened = true; | |
780 | mutex_unlock(&steam->mutex); | |
385a4886 RRC |
781 | |
782 | steam_input_unregister(steam); | |
783 | ||
cf28aee2 | 784 | return 0; |
c164d6ab RRC |
785 | } |
786 | ||
787 | static void steam_client_ll_close(struct hid_device *hdev) | |
788 | { | |
4bff980f | 789 | struct steam_device *steam = hdev->driver_data; |
c164d6ab | 790 | |
6b538cc2 RRC |
791 | unsigned long flags; |
792 | bool connected; | |
793 | ||
794 | spin_lock_irqsave(&steam->lock, flags); | |
795 | connected = steam->connected; | |
796 | spin_unlock_irqrestore(&steam->lock, flags); | |
797 | ||
c164d6ab RRC |
798 | mutex_lock(&steam->mutex); |
799 | steam->client_opened = false; | |
6b538cc2 RRC |
800 | if (connected) |
801 | steam_set_lizard_mode(steam, lizard_mode); | |
c164d6ab RRC |
802 | mutex_unlock(&steam->mutex); |
803 | ||
6b538cc2 | 804 | if (connected) |
385a4886 | 805 | steam_input_register(steam); |
c164d6ab RRC |
806 | } |
807 | ||
808 | static int steam_client_ll_raw_request(struct hid_device *hdev, | |
809 | unsigned char reportnum, u8 *buf, | |
810 | size_t count, unsigned char report_type, | |
811 | int reqtype) | |
812 | { | |
4bff980f | 813 | struct steam_device *steam = hdev->driver_data; |
c164d6ab RRC |
814 | |
815 | return hid_hw_raw_request(steam->hdev, reportnum, buf, count, | |
816 | report_type, reqtype); | |
817 | } | |
818 | ||
ddb6792f | 819 | static const struct hid_ll_driver steam_client_ll_driver = { |
c164d6ab RRC |
820 | .parse = steam_client_ll_parse, |
821 | .start = steam_client_ll_start, | |
822 | .stop = steam_client_ll_stop, | |
823 | .open = steam_client_ll_open, | |
824 | .close = steam_client_ll_close, | |
825 | .raw_request = steam_client_ll_raw_request, | |
826 | }; | |
827 | ||
828 | static struct hid_device *steam_create_client_hid(struct hid_device *hdev) | |
829 | { | |
830 | struct hid_device *client_hdev; | |
831 | ||
832 | client_hdev = hid_allocate_device(); | |
833 | if (IS_ERR(client_hdev)) | |
834 | return client_hdev; | |
835 | ||
836 | client_hdev->ll_driver = &steam_client_ll_driver; | |
837 | client_hdev->dev.parent = hdev->dev.parent; | |
838 | client_hdev->bus = hdev->bus; | |
839 | client_hdev->vendor = hdev->vendor; | |
840 | client_hdev->product = hdev->product; | |
165e2cad JK |
841 | client_hdev->version = hdev->version; |
842 | client_hdev->type = hdev->type; | |
843 | client_hdev->country = hdev->country; | |
eeeec27d | 844 | strscpy(client_hdev->name, hdev->name, |
c164d6ab | 845 | sizeof(client_hdev->name)); |
eeeec27d | 846 | strscpy(client_hdev->phys, hdev->phys, |
c164d6ab RRC |
847 | sizeof(client_hdev->phys)); |
848 | /* | |
849 | * Since we use the same device info than the real interface to | |
850 | * trick userspace, we will be calling steam_probe recursively. | |
851 | * We need to recognize the client interface somehow. | |
852 | */ | |
853 | client_hdev->group = HID_GROUP_STEAM; | |
854 | return client_hdev; | |
855 | } | |
856 | ||
857 | static int steam_probe(struct hid_device *hdev, | |
858 | const struct hid_device_id *id) | |
859 | { | |
860 | struct steam_device *steam; | |
861 | int ret; | |
862 | ||
863 | ret = hid_parse(hdev); | |
864 | if (ret) { | |
865 | hid_err(hdev, | |
866 | "%s:parse of hid interface failed\n", __func__); | |
867 | return ret; | |
868 | } | |
869 | ||
870 | /* | |
871 | * The virtual client_dev is only used for hidraw. | |
872 | * Also avoid the recursive probe. | |
873 | */ | |
874 | if (hdev->group == HID_GROUP_STEAM) | |
875 | return hid_hw_start(hdev, HID_CONNECT_HIDRAW); | |
876 | /* | |
877 | * The non-valve interfaces (mouse and keyboard emulation) are | |
878 | * connected without changes. | |
879 | */ | |
880 | if (!steam_is_valve_interface(hdev)) | |
881 | return hid_hw_start(hdev, HID_CONNECT_DEFAULT); | |
882 | ||
883 | steam = devm_kzalloc(&hdev->dev, sizeof(*steam), GFP_KERNEL); | |
884 | if (!steam) { | |
885 | ret = -ENOMEM; | |
886 | goto steam_alloc_fail; | |
887 | } | |
888 | steam->hdev = hdev; | |
889 | hid_set_drvdata(hdev, steam); | |
890 | spin_lock_init(&steam->lock); | |
891 | mutex_init(&steam->mutex); | |
892 | steam->quirks = id->driver_data; | |
893 | INIT_WORK(&steam->work_connect, steam_work_connect_cb); | |
2d3f53a8 | 894 | INIT_LIST_HEAD(&steam->list); |
9ba9498b | 895 | INIT_DEFERRABLE_WORK(&steam->heartbeat, steam_lizard_mode_heartbeat); |
9cd61c81 | 896 | INIT_WORK(&steam->rumble_work, steam_haptic_rumble_cb); |
c164d6ab RRC |
897 | |
898 | steam->client_hdev = steam_create_client_hid(hdev); | |
899 | if (IS_ERR(steam->client_hdev)) { | |
900 | ret = PTR_ERR(steam->client_hdev); | |
901 | goto client_hdev_fail; | |
902 | } | |
4bff980f | 903 | steam->client_hdev->driver_data = steam; |
c164d6ab RRC |
904 | |
905 | /* | |
906 | * With the real steam controller interface, do not connect hidraw. | |
907 | * Instead, create the client_hid and connect that. | |
908 | */ | |
909 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_HIDRAW); | |
910 | if (ret) | |
911 | goto hid_hw_start_fail; | |
912 | ||
913 | ret = hid_add_device(steam->client_hdev); | |
914 | if (ret) | |
915 | goto client_hdev_add_fail; | |
916 | ||
cf28aee2 RRC |
917 | ret = hid_hw_open(hdev); |
918 | if (ret) { | |
919 | hid_err(hdev, | |
920 | "%s:hid_hw_open\n", | |
921 | __func__); | |
922 | goto hid_hw_open_fail; | |
923 | } | |
924 | ||
c164d6ab | 925 | if (steam->quirks & STEAM_QUIRK_WIRELESS) { |
c164d6ab | 926 | hid_info(hdev, "Steam wireless receiver connected"); |
20eee6e5 RRC |
927 | /* If using a wireless adaptor ask for connection status */ |
928 | steam->connected = false; | |
c164d6ab RRC |
929 | steam_request_conn_status(steam); |
930 | } else { | |
20eee6e5 RRC |
931 | /* A wired connection is always present */ |
932 | steam->connected = true; | |
c164d6ab RRC |
933 | ret = steam_register(steam); |
934 | if (ret) { | |
935 | hid_err(hdev, | |
936 | "%s:steam_register failed with error %d\n", | |
937 | __func__, ret); | |
938 | goto input_register_fail; | |
939 | } | |
940 | } | |
941 | ||
c164d6ab RRC |
942 | return 0; |
943 | ||
c164d6ab | 944 | input_register_fail: |
cf28aee2 | 945 | hid_hw_open_fail: |
c164d6ab RRC |
946 | client_hdev_add_fail: |
947 | hid_hw_stop(hdev); | |
948 | hid_hw_start_fail: | |
949 | hid_destroy_device(steam->client_hdev); | |
950 | client_hdev_fail: | |
951 | cancel_work_sync(&steam->work_connect); | |
9ba9498b | 952 | cancel_delayed_work_sync(&steam->heartbeat); |
9cd61c81 | 953 | cancel_work_sync(&steam->rumble_work); |
c164d6ab RRC |
954 | steam_alloc_fail: |
955 | hid_err(hdev, "%s: failed with error %d\n", | |
956 | __func__, ret); | |
957 | return ret; | |
958 | } | |
959 | ||
960 | static void steam_remove(struct hid_device *hdev) | |
961 | { | |
962 | struct steam_device *steam = hid_get_drvdata(hdev); | |
963 | ||
964 | if (!steam || hdev->group == HID_GROUP_STEAM) { | |
965 | hid_hw_stop(hdev); | |
966 | return; | |
967 | } | |
968 | ||
c164d6ab | 969 | hid_destroy_device(steam->client_hdev); |
9ba9498b VP |
970 | mutex_lock(&steam->mutex); |
971 | steam->client_hdev = NULL; | |
c164d6ab | 972 | steam->client_opened = false; |
9ba9498b VP |
973 | cancel_delayed_work_sync(&steam->heartbeat); |
974 | mutex_unlock(&steam->mutex); | |
c164d6ab RRC |
975 | cancel_work_sync(&steam->work_connect); |
976 | if (steam->quirks & STEAM_QUIRK_WIRELESS) { | |
977 | hid_info(hdev, "Steam wireless receiver disconnected"); | |
c164d6ab | 978 | } |
cf28aee2 | 979 | hid_hw_close(hdev); |
c164d6ab RRC |
980 | hid_hw_stop(hdev); |
981 | steam_unregister(steam); | |
982 | } | |
983 | ||
984 | static void steam_do_connect_event(struct steam_device *steam, bool connected) | |
985 | { | |
986 | unsigned long flags; | |
385a4886 | 987 | bool changed; |
c164d6ab RRC |
988 | |
989 | spin_lock_irqsave(&steam->lock, flags); | |
385a4886 | 990 | changed = steam->connected != connected; |
c164d6ab RRC |
991 | steam->connected = connected; |
992 | spin_unlock_irqrestore(&steam->lock, flags); | |
993 | ||
385a4886 | 994 | if (changed && schedule_work(&steam->work_connect) == 0) |
c164d6ab RRC |
995 | dbg_hid("%s: connected=%d event already queued\n", |
996 | __func__, connected); | |
997 | } | |
998 | ||
999 | /* | |
1000 | * Some input data in the protocol has the opposite sign. | |
1001 | * Clamp the values to 32767..-32767 so that the range is | |
1002 | * symmetrical and can be negated safely. | |
1003 | */ | |
1004 | static inline s16 steam_le16(u8 *data) | |
1005 | { | |
1006 | s16 x = (s16) le16_to_cpup((__le16 *)data); | |
1007 | ||
1008 | return x == -32768 ? -32767 : x; | |
1009 | } | |
1010 | ||
1011 | /* | |
1012 | * The size for this message payload is 60. | |
1013 | * The known values are: | |
1014 | * (* values are not sent through wireless) | |
1015 | * (* accelerator/gyro is disabled by default) | |
1016 | * Offset| Type | Mapped to |Meaning | |
1017 | * -------+-------+-----------+-------------------------- | |
1018 | * 4-7 | u32 | -- | sequence number | |
1019 | * 8-10 | 24bit | see below | buttons | |
1020 | * 11 | u8 | ABS_HAT2Y | left trigger | |
1021 | * 12 | u8 | ABS_HAT2X | right trigger | |
1022 | * 13-15 | -- | -- | always 0 | |
1023 | * 16-17 | s16 | ABS_X/ABS_HAT0X | X value | |
1024 | * 18-19 | s16 | ABS_Y/ABS_HAT0Y | Y value | |
1025 | * 20-21 | s16 | ABS_RX | right-pad X value | |
1026 | * 22-23 | s16 | ABS_RY | right-pad Y value | |
1027 | * 24-25 | s16 | -- | * left trigger | |
1028 | * 26-27 | s16 | -- | * right trigger | |
1029 | * 28-29 | s16 | -- | * accelerometer X value | |
1030 | * 30-31 | s16 | -- | * accelerometer Y value | |
1031 | * 32-33 | s16 | -- | * accelerometer Z value | |
1032 | * 34-35 | s16 | -- | gyro X value | |
1033 | * 36-36 | s16 | -- | gyro Y value | |
1034 | * 38-39 | s16 | -- | gyro Z value | |
1035 | * 40-41 | s16 | -- | quaternion W value | |
1036 | * 42-43 | s16 | -- | quaternion X value | |
1037 | * 44-45 | s16 | -- | quaternion Y value | |
1038 | * 46-47 | s16 | -- | quaternion Z value | |
1039 | * 48-49 | -- | -- | always 0 | |
1040 | * 50-51 | s16 | -- | * left trigger (uncalibrated) | |
1041 | * 52-53 | s16 | -- | * right trigger (uncalibrated) | |
1042 | * 54-55 | s16 | -- | * joystick X value (uncalibrated) | |
1043 | * 56-57 | s16 | -- | * joystick Y value (uncalibrated) | |
1044 | * 58-59 | s16 | -- | * left-pad X value | |
1045 | * 60-61 | s16 | -- | * left-pad Y value | |
1046 | * 62-63 | u16 | -- | * battery voltage | |
1047 | * | |
1048 | * The buttons are: | |
1049 | * Bit | Mapped to | Description | |
1050 | * ------+------------+-------------------------------- | |
1051 | * 8.0 | BTN_TR2 | right trigger fully pressed | |
1052 | * 8.1 | BTN_TL2 | left trigger fully pressed | |
1053 | * 8.2 | BTN_TR | right shoulder | |
1054 | * 8.3 | BTN_TL | left shoulder | |
1055 | * 8.4 | BTN_Y | button Y | |
1056 | * 8.5 | BTN_B | button B | |
1057 | * 8.6 | BTN_X | button X | |
1058 | * 8.7 | BTN_A | button A | |
9ba9498b VP |
1059 | * 9.0 | BTN_DPAD_UP | left-pad up |
1060 | * 9.1 | BTN_DPAD_RIGHT | left-pad right | |
1061 | * 9.2 | BTN_DPAD_LEFT | left-pad left | |
1062 | * 9.3 | BTN_DPAD_DOWN | left-pad down | |
c164d6ab RRC |
1063 | * 9.4 | BTN_SELECT | menu left |
1064 | * 9.5 | BTN_MODE | steam logo | |
1065 | * 9.6 | BTN_START | menu right | |
1066 | * 9.7 | BTN_GEAR_DOWN | left back lever | |
1067 | * 10.0 | BTN_GEAR_UP | right back lever | |
1068 | * 10.1 | -- | left-pad clicked | |
1069 | * 10.2 | BTN_THUMBR | right-pad clicked | |
1070 | * 10.3 | BTN_THUMB | left-pad touched (but see explanation below) | |
1071 | * 10.4 | BTN_THUMB2 | right-pad touched | |
1072 | * 10.5 | -- | unknown | |
1073 | * 10.6 | BTN_THUMBL | joystick clicked | |
1074 | * 10.7 | -- | lpad_and_joy | |
1075 | */ | |
1076 | ||
1077 | static void steam_do_input_event(struct steam_device *steam, | |
1078 | struct input_dev *input, u8 *data) | |
1079 | { | |
1080 | /* 24 bits of buttons */ | |
1081 | u8 b8, b9, b10; | |
1082 | s16 x, y; | |
1083 | bool lpad_touched, lpad_and_joy; | |
1084 | ||
1085 | b8 = data[8]; | |
1086 | b9 = data[9]; | |
1087 | b10 = data[10]; | |
1088 | ||
1089 | input_report_abs(input, ABS_HAT2Y, data[11]); | |
1090 | input_report_abs(input, ABS_HAT2X, data[12]); | |
1091 | ||
1092 | /* | |
1093 | * These two bits tells how to interpret the values X and Y. | |
1094 | * lpad_and_joy tells that the joystick and the lpad are used at the | |
1095 | * same time. | |
1096 | * lpad_touched tells whether X/Y are to be read as lpad coord or | |
1097 | * joystick values. | |
1098 | * (lpad_touched || lpad_and_joy) tells if the lpad is really touched. | |
1099 | */ | |
1100 | lpad_touched = b10 & BIT(3); | |
1101 | lpad_and_joy = b10 & BIT(7); | |
1102 | x = steam_le16(data + 16); | |
1103 | y = -steam_le16(data + 18); | |
1104 | ||
1105 | input_report_abs(input, lpad_touched ? ABS_HAT0X : ABS_X, x); | |
1106 | input_report_abs(input, lpad_touched ? ABS_HAT0Y : ABS_Y, y); | |
1107 | /* Check if joystick is centered */ | |
1108 | if (lpad_touched && !lpad_and_joy) { | |
1109 | input_report_abs(input, ABS_X, 0); | |
1110 | input_report_abs(input, ABS_Y, 0); | |
1111 | } | |
1112 | /* Check if lpad is untouched */ | |
1113 | if (!(lpad_touched || lpad_and_joy)) { | |
1114 | input_report_abs(input, ABS_HAT0X, 0); | |
1115 | input_report_abs(input, ABS_HAT0Y, 0); | |
1116 | } | |
1117 | ||
1118 | input_report_abs(input, ABS_RX, steam_le16(data + 20)); | |
1119 | input_report_abs(input, ABS_RY, -steam_le16(data + 22)); | |
1120 | ||
1121 | input_event(input, EV_KEY, BTN_TR2, !!(b8 & BIT(0))); | |
1122 | input_event(input, EV_KEY, BTN_TL2, !!(b8 & BIT(1))); | |
1123 | input_event(input, EV_KEY, BTN_TR, !!(b8 & BIT(2))); | |
1124 | input_event(input, EV_KEY, BTN_TL, !!(b8 & BIT(3))); | |
1125 | input_event(input, EV_KEY, BTN_Y, !!(b8 & BIT(4))); | |
1126 | input_event(input, EV_KEY, BTN_B, !!(b8 & BIT(5))); | |
1127 | input_event(input, EV_KEY, BTN_X, !!(b8 & BIT(6))); | |
1128 | input_event(input, EV_KEY, BTN_A, !!(b8 & BIT(7))); | |
1129 | input_event(input, EV_KEY, BTN_SELECT, !!(b9 & BIT(4))); | |
1130 | input_event(input, EV_KEY, BTN_MODE, !!(b9 & BIT(5))); | |
1131 | input_event(input, EV_KEY, BTN_START, !!(b9 & BIT(6))); | |
1132 | input_event(input, EV_KEY, BTN_GEAR_DOWN, !!(b9 & BIT(7))); | |
1133 | input_event(input, EV_KEY, BTN_GEAR_UP, !!(b10 & BIT(0))); | |
1134 | input_event(input, EV_KEY, BTN_THUMBR, !!(b10 & BIT(2))); | |
1135 | input_event(input, EV_KEY, BTN_THUMBL, !!(b10 & BIT(6))); | |
1136 | input_event(input, EV_KEY, BTN_THUMB, lpad_touched || lpad_and_joy); | |
1137 | input_event(input, EV_KEY, BTN_THUMB2, !!(b10 & BIT(4))); | |
1138 | input_event(input, EV_KEY, BTN_DPAD_UP, !!(b9 & BIT(0))); | |
1139 | input_event(input, EV_KEY, BTN_DPAD_RIGHT, !!(b9 & BIT(1))); | |
1140 | input_event(input, EV_KEY, BTN_DPAD_LEFT, !!(b9 & BIT(2))); | |
1141 | input_event(input, EV_KEY, BTN_DPAD_DOWN, !!(b9 & BIT(3))); | |
1142 | ||
1143 | input_sync(input); | |
1144 | } | |
1145 | ||
9ba9498b VP |
1146 | /* |
1147 | * The size for this message payload is 56. | |
1148 | * The known values are: | |
1149 | * Offset| Type | Mapped to |Meaning | |
1150 | * -------+-------+-----------+-------------------------- | |
1151 | * 4-7 | u32 | -- | sequence number | |
1152 | * 8-15 | u64 | see below | buttons | |
1153 | * 16-17 | s16 | ABS_HAT0X | left-pad X value | |
1154 | * 18-19 | s16 | ABS_HAT0Y | left-pad Y value | |
1155 | * 20-21 | s16 | ABS_HAT1X | right-pad X value | |
1156 | * 22-23 | s16 | ABS_HAT1Y | right-pad Y value | |
1157 | * 24-25 | s16 | -- | accelerometer X value | |
1158 | * 26-27 | s16 | -- | accelerometer Y value | |
1159 | * 28-29 | s16 | -- | accelerometer Z value | |
1160 | * 30-31 | s16 | -- | gyro X value | |
1161 | * 32-33 | s16 | -- | gyro Y value | |
1162 | * 34-35 | s16 | -- | gyro Z value | |
1163 | * 36-37 | s16 | -- | quaternion W value | |
1164 | * 38-39 | s16 | -- | quaternion X value | |
1165 | * 40-41 | s16 | -- | quaternion Y value | |
1166 | * 42-43 | s16 | -- | quaternion Z value | |
1167 | * 44-45 | u16 | ABS_HAT2Y | left trigger (uncalibrated) | |
1168 | * 46-47 | u16 | ABS_HAT2X | right trigger (uncalibrated) | |
1169 | * 48-49 | s16 | ABS_X | left joystick X | |
1170 | * 50-51 | s16 | ABS_Y | left joystick Y | |
1171 | * 52-53 | s16 | ABS_RX | right joystick X | |
1172 | * 54-55 | s16 | ABS_RY | right joystick Y | |
1173 | * 56-57 | u16 | -- | left pad pressure | |
1174 | * 58-59 | u16 | -- | right pad pressure | |
1175 | * | |
1176 | * The buttons are: | |
1177 | * Bit | Mapped to | Description | |
1178 | * ------+------------+-------------------------------- | |
1179 | * 8.0 | BTN_TR2 | right trigger fully pressed | |
1180 | * 8.1 | BTN_TL2 | left trigger fully pressed | |
1181 | * 8.2 | BTN_TR | right shoulder | |
1182 | * 8.3 | BTN_TL | left shoulder | |
1183 | * 8.4 | BTN_Y | button Y | |
1184 | * 8.5 | BTN_B | button B | |
1185 | * 8.6 | BTN_X | button X | |
1186 | * 8.7 | BTN_A | button A | |
1187 | * 9.0 | BTN_DPAD_UP | left-pad up | |
1188 | * 9.1 | BTN_DPAD_RIGHT | left-pad right | |
1189 | * 9.2 | BTN_DPAD_LEFT | left-pad left | |
1190 | * 9.3 | BTN_DPAD_DOWN | left-pad down | |
1191 | * 9.4 | BTN_SELECT | menu left | |
1192 | * 9.5 | BTN_MODE | steam logo | |
1193 | * 9.6 | BTN_START | menu right | |
1194 | * 9.7 | BTN_TRIGGER_HAPPY3 | left bottom grip button | |
1195 | * 10.0 | BTN_TRIGGER_HAPPY4 | right bottom grip button | |
1196 | * 10.1 | BTN_THUMB | left pad pressed | |
1197 | * 10.2 | BTN_THUMB2 | right pad pressed | |
1198 | * 10.3 | -- | left pad touched | |
1199 | * 10.4 | -- | right pad touched | |
1200 | * 10.5 | -- | unknown | |
1201 | * 10.6 | BTN_THUMBL | left joystick clicked | |
1202 | * 10.7 | -- | unknown | |
1203 | * 11.0 | -- | unknown | |
1204 | * 11.1 | -- | unknown | |
1205 | * 11.2 | BTN_THUMBR | right joystick clicked | |
1206 | * 11.3 | -- | unknown | |
1207 | * 11.4 | -- | unknown | |
1208 | * 11.5 | -- | unknown | |
1209 | * 11.6 | -- | unknown | |
1210 | * 11.7 | -- | unknown | |
1211 | * 12.0 | -- | unknown | |
1212 | * 12.1 | -- | unknown | |
1213 | * 12.2 | -- | unknown | |
1214 | * 12.3 | -- | unknown | |
1215 | * 12.4 | -- | unknown | |
1216 | * 12.5 | -- | unknown | |
1217 | * 12.6 | -- | unknown | |
1218 | * 12.7 | -- | unknown | |
1219 | * 13.0 | -- | unknown | |
1220 | * 13.1 | BTN_TRIGGER_HAPPY1 | left top grip button | |
1221 | * 13.2 | BTN_TRIGGER_HAPPY2 | right top grip button | |
1222 | * 13.3 | -- | unknown | |
1223 | * 13.4 | -- | unknown | |
1224 | * 13.5 | -- | unknown | |
1225 | * 13.6 | -- | left joystick touched | |
1226 | * 13.7 | -- | right joystick touched | |
1227 | * 14.0 | -- | unknown | |
1228 | * 14.1 | -- | unknown | |
1229 | * 14.2 | BTN_BASE | quick access button | |
1230 | * 14.3 | -- | unknown | |
1231 | * 14.4 | -- | unknown | |
1232 | * 14.5 | -- | unknown | |
1233 | * 14.6 | -- | unknown | |
1234 | * 14.7 | -- | unknown | |
1235 | * 15.0 | -- | unknown | |
1236 | * 15.1 | -- | unknown | |
1237 | * 15.2 | -- | unknown | |
1238 | * 15.3 | -- | unknown | |
1239 | * 15.4 | -- | unknown | |
1240 | * 15.5 | -- | unknown | |
1241 | * 15.6 | -- | unknown | |
1242 | * 15.7 | -- | unknown | |
1243 | */ | |
1244 | static void steam_do_deck_input_event(struct steam_device *steam, | |
1245 | struct input_dev *input, u8 *data) | |
1246 | { | |
1247 | u8 b8, b9, b10, b11, b13, b14; | |
1248 | bool lpad_touched, rpad_touched; | |
1249 | ||
1250 | b8 = data[8]; | |
1251 | b9 = data[9]; | |
1252 | b10 = data[10]; | |
1253 | b11 = data[11]; | |
1254 | b13 = data[13]; | |
1255 | b14 = data[14]; | |
1256 | ||
1257 | lpad_touched = b10 & BIT(3); | |
1258 | rpad_touched = b10 & BIT(4); | |
1259 | ||
1260 | if (lpad_touched) { | |
1261 | input_report_abs(input, ABS_HAT0X, steam_le16(data + 16)); | |
1262 | input_report_abs(input, ABS_HAT0Y, steam_le16(data + 18)); | |
1263 | } else { | |
1264 | input_report_abs(input, ABS_HAT0X, 0); | |
1265 | input_report_abs(input, ABS_HAT0Y, 0); | |
1266 | } | |
1267 | ||
1268 | if (rpad_touched) { | |
1269 | input_report_abs(input, ABS_HAT1X, steam_le16(data + 20)); | |
1270 | input_report_abs(input, ABS_HAT1Y, steam_le16(data + 22)); | |
1271 | } else { | |
1272 | input_report_abs(input, ABS_HAT1X, 0); | |
1273 | input_report_abs(input, ABS_HAT1Y, 0); | |
1274 | } | |
1275 | ||
1276 | input_report_abs(input, ABS_X, steam_le16(data + 48)); | |
1277 | input_report_abs(input, ABS_Y, -steam_le16(data + 50)); | |
1278 | input_report_abs(input, ABS_RX, steam_le16(data + 52)); | |
1279 | input_report_abs(input, ABS_RY, -steam_le16(data + 54)); | |
1280 | ||
1281 | input_report_abs(input, ABS_HAT2Y, steam_le16(data + 44)); | |
1282 | input_report_abs(input, ABS_HAT2X, steam_le16(data + 46)); | |
1283 | ||
1284 | input_event(input, EV_KEY, BTN_TR2, !!(b8 & BIT(0))); | |
1285 | input_event(input, EV_KEY, BTN_TL2, !!(b8 & BIT(1))); | |
1286 | input_event(input, EV_KEY, BTN_TR, !!(b8 & BIT(2))); | |
1287 | input_event(input, EV_KEY, BTN_TL, !!(b8 & BIT(3))); | |
1288 | input_event(input, EV_KEY, BTN_Y, !!(b8 & BIT(4))); | |
1289 | input_event(input, EV_KEY, BTN_B, !!(b8 & BIT(5))); | |
1290 | input_event(input, EV_KEY, BTN_X, !!(b8 & BIT(6))); | |
1291 | input_event(input, EV_KEY, BTN_A, !!(b8 & BIT(7))); | |
1292 | input_event(input, EV_KEY, BTN_SELECT, !!(b9 & BIT(4))); | |
1293 | input_event(input, EV_KEY, BTN_MODE, !!(b9 & BIT(5))); | |
1294 | input_event(input, EV_KEY, BTN_START, !!(b9 & BIT(6))); | |
1295 | input_event(input, EV_KEY, BTN_TRIGGER_HAPPY3, !!(b9 & BIT(7))); | |
1296 | input_event(input, EV_KEY, BTN_TRIGGER_HAPPY4, !!(b10 & BIT(0))); | |
1297 | input_event(input, EV_KEY, BTN_THUMBL, !!(b10 & BIT(6))); | |
1298 | input_event(input, EV_KEY, BTN_THUMBR, !!(b11 & BIT(2))); | |
1299 | input_event(input, EV_KEY, BTN_DPAD_UP, !!(b9 & BIT(0))); | |
1300 | input_event(input, EV_KEY, BTN_DPAD_RIGHT, !!(b9 & BIT(1))); | |
1301 | input_event(input, EV_KEY, BTN_DPAD_LEFT, !!(b9 & BIT(2))); | |
1302 | input_event(input, EV_KEY, BTN_DPAD_DOWN, !!(b9 & BIT(3))); | |
1303 | input_event(input, EV_KEY, BTN_THUMB, !!(b10 & BIT(1))); | |
1304 | input_event(input, EV_KEY, BTN_THUMB2, !!(b10 & BIT(2))); | |
1305 | input_event(input, EV_KEY, BTN_TRIGGER_HAPPY1, !!(b13 & BIT(1))); | |
1306 | input_event(input, EV_KEY, BTN_TRIGGER_HAPPY2, !!(b13 & BIT(2))); | |
1307 | input_event(input, EV_KEY, BTN_BASE, !!(b14 & BIT(2))); | |
1308 | ||
1309 | input_sync(input); | |
1310 | } | |
1311 | ||
f8271979 RRC |
1312 | /* |
1313 | * The size for this message payload is 11. | |
1314 | * The known values are: | |
1315 | * Offset| Type | Meaning | |
1316 | * -------+-------+--------------------------- | |
1317 | * 4-7 | u32 | sequence number | |
1318 | * 8-11 | -- | always 0 | |
1319 | * 12-13 | u16 | voltage (mV) | |
1320 | * 14 | u8 | battery percent | |
1321 | */ | |
1322 | static void steam_do_battery_event(struct steam_device *steam, | |
1323 | struct power_supply *battery, u8 *data) | |
1324 | { | |
1325 | unsigned long flags; | |
1326 | ||
1327 | s16 volts = steam_le16(data + 12); | |
1328 | u8 batt = data[14]; | |
1329 | ||
1330 | /* Creating the battery may have failed */ | |
1331 | rcu_read_lock(); | |
1332 | battery = rcu_dereference(steam->battery); | |
1333 | if (likely(battery)) { | |
1334 | spin_lock_irqsave(&steam->lock, flags); | |
1335 | steam->voltage = volts; | |
1336 | steam->battery_charge = batt; | |
1337 | spin_unlock_irqrestore(&steam->lock, flags); | |
1338 | power_supply_changed(battery); | |
1339 | } | |
1340 | rcu_read_unlock(); | |
1341 | } | |
1342 | ||
c164d6ab RRC |
1343 | static int steam_raw_event(struct hid_device *hdev, |
1344 | struct hid_report *report, u8 *data, | |
1345 | int size) | |
1346 | { | |
1347 | struct steam_device *steam = hid_get_drvdata(hdev); | |
1348 | struct input_dev *input; | |
f8271979 | 1349 | struct power_supply *battery; |
c164d6ab RRC |
1350 | |
1351 | if (!steam) | |
1352 | return 0; | |
1353 | ||
1354 | if (steam->client_opened) | |
1355 | hid_input_report(steam->client_hdev, HID_FEATURE_REPORT, | |
1356 | data, size, 0); | |
1357 | /* | |
1358 | * All messages are size=64, all values little-endian. | |
1359 | * The format is: | |
1360 | * Offset| Meaning | |
1361 | * -------+-------------------------------------------- | |
1362 | * 0-1 | always 0x01, 0x00, maybe protocol version? | |
1363 | * 2 | type of message | |
1364 | * 3 | length of the real payload (not checked) | |
1365 | * 4-n | payload data, depends on the type | |
1366 | * | |
1367 | * There are these known types of message: | |
1368 | * 0x01: input data (60 bytes) | |
1369 | * 0x03: wireless connect/disconnect (1 byte) | |
1370 | * 0x04: battery status (11 bytes) | |
9ba9498b | 1371 | * 0x09: Steam Deck input data (56 bytes) |
c164d6ab RRC |
1372 | */ |
1373 | ||
1374 | if (size != 64 || data[0] != 1 || data[1] != 0) | |
1375 | return 0; | |
1376 | ||
1377 | switch (data[2]) { | |
1378 | case STEAM_EV_INPUT_DATA: | |
1379 | if (steam->client_opened) | |
1380 | return 0; | |
1381 | rcu_read_lock(); | |
1382 | input = rcu_dereference(steam->input); | |
385a4886 | 1383 | if (likely(input)) |
c164d6ab | 1384 | steam_do_input_event(steam, input, data); |
c164d6ab RRC |
1385 | rcu_read_unlock(); |
1386 | break; | |
9ba9498b VP |
1387 | case STEAM_EV_DECK_INPUT_DATA: |
1388 | if (steam->client_opened) | |
1389 | return 0; | |
1390 | rcu_read_lock(); | |
1391 | input = rcu_dereference(steam->input); | |
1392 | if (likely(input)) | |
1393 | steam_do_deck_input_event(steam, input, data); | |
1394 | rcu_read_unlock(); | |
1395 | break; | |
c164d6ab RRC |
1396 | case STEAM_EV_CONNECT: |
1397 | /* | |
1398 | * The payload of this event is a single byte: | |
1399 | * 0x01: disconnected. | |
1400 | * 0x02: connected. | |
1401 | */ | |
1402 | switch (data[4]) { | |
1403 | case 0x01: | |
1404 | steam_do_connect_event(steam, false); | |
1405 | break; | |
1406 | case 0x02: | |
1407 | steam_do_connect_event(steam, true); | |
1408 | break; | |
1409 | } | |
1410 | break; | |
1411 | case STEAM_EV_BATTERY: | |
f8271979 RRC |
1412 | if (steam->quirks & STEAM_QUIRK_WIRELESS) { |
1413 | rcu_read_lock(); | |
1414 | battery = rcu_dereference(steam->battery); | |
1415 | if (likely(battery)) { | |
1416 | steam_do_battery_event(steam, battery, data); | |
1417 | } else { | |
1418 | dbg_hid( | |
1419 | "%s: battery data without connect event\n", | |
1420 | __func__); | |
1421 | steam_do_connect_event(steam, true); | |
1422 | } | |
1423 | rcu_read_unlock(); | |
1424 | } | |
c164d6ab RRC |
1425 | break; |
1426 | } | |
1427 | return 0; | |
1428 | } | |
1429 | ||
1430 | static int steam_param_set_lizard_mode(const char *val, | |
1431 | const struct kernel_param *kp) | |
1432 | { | |
1433 | struct steam_device *steam; | |
1434 | int ret; | |
1435 | ||
1436 | ret = param_set_bool(val, kp); | |
1437 | if (ret) | |
1438 | return ret; | |
1439 | ||
1440 | mutex_lock(&steam_devices_lock); | |
1441 | list_for_each_entry(steam, &steam_devices, list) { | |
385a4886 RRC |
1442 | mutex_lock(&steam->mutex); |
1443 | if (!steam->client_opened) | |
1444 | steam_set_lizard_mode(steam, lizard_mode); | |
1445 | mutex_unlock(&steam->mutex); | |
c164d6ab RRC |
1446 | } |
1447 | mutex_unlock(&steam_devices_lock); | |
1448 | return 0; | |
1449 | } | |
1450 | ||
1451 | static const struct kernel_param_ops steam_lizard_mode_ops = { | |
1452 | .set = steam_param_set_lizard_mode, | |
1453 | .get = param_get_bool, | |
1454 | }; | |
1455 | ||
1456 | module_param_cb(lizard_mode, &steam_lizard_mode_ops, &lizard_mode, 0644); | |
1457 | MODULE_PARM_DESC(lizard_mode, | |
1458 | "Enable mouse and keyboard emulation (lizard mode) when the gamepad is not in use"); | |
1459 | ||
1460 | static const struct hid_device_id steam_controllers[] = { | |
1461 | { /* Wired Steam Controller */ | |
1462 | HID_USB_DEVICE(USB_VENDOR_ID_VALVE, | |
1463 | USB_DEVICE_ID_STEAM_CONTROLLER) | |
1464 | }, | |
1465 | { /* Wireless Steam Controller */ | |
1466 | HID_USB_DEVICE(USB_VENDOR_ID_VALVE, | |
1467 | USB_DEVICE_ID_STEAM_CONTROLLER_WIRELESS), | |
1468 | .driver_data = STEAM_QUIRK_WIRELESS | |
1469 | }, | |
9ba9498b VP |
1470 | { /* Steam Deck */ |
1471 | HID_USB_DEVICE(USB_VENDOR_ID_VALVE, | |
1472 | USB_DEVICE_ID_STEAM_DECK), | |
1473 | .driver_data = STEAM_QUIRK_DECK | |
1474 | }, | |
c164d6ab RRC |
1475 | {} |
1476 | }; | |
1477 | ||
1478 | MODULE_DEVICE_TABLE(hid, steam_controllers); | |
1479 | ||
1480 | static struct hid_driver steam_controller_driver = { | |
1481 | .name = "hid-steam", | |
1482 | .id_table = steam_controllers, | |
1483 | .probe = steam_probe, | |
1484 | .remove = steam_remove, | |
1485 | .raw_event = steam_raw_event, | |
1486 | }; | |
1487 | ||
1488 | module_hid_driver(steam_controller_driver); |