Commit | Line | Data |
---|---|---|
2af16c1f DO |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* | |
3 | * HID driver for Nintendo Switch Joy-Cons and Pro Controllers | |
4 | * | |
e93363f7 | 5 | * Copyright (c) 2019-2021 Daniel J. Ogorchock <djogorchock@gmail.com> |
2af16c1f DO |
6 | * |
7 | * The following resources/projects were referenced for this driver: | |
8 | * https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering | |
9 | * https://gitlab.com/pjranki/joycon-linux-kernel (Peter Rankin) | |
10 | * https://github.com/FrotBot/SwitchProConLinuxUSB | |
11 | * https://github.com/MTCKC/ProconXInput | |
c4eae84f | 12 | * https://github.com/Davidobot/BetterJoyForCemu |
2af16c1f DO |
13 | * hid-wiimote kernel hid driver |
14 | * hid-logitech-hidpp driver | |
08ebba5c | 15 | * hid-sony driver |
2af16c1f DO |
16 | * |
17 | * This driver supports the Nintendo Switch Joy-Cons and Pro Controllers. The | |
18 | * Pro Controllers can either be used over USB or Bluetooth. | |
19 | * | |
20 | * The driver will retrieve the factory calibration info from the controllers, | |
21 | * so little to no user calibration should be required. | |
22 | * | |
23 | */ | |
24 | ||
25 | #include "hid-ids.h" | |
83d640c4 | 26 | #include <asm/unaligned.h> |
2af16c1f DO |
27 | #include <linux/delay.h> |
28 | #include <linux/device.h> | |
4ff5b108 | 29 | #include <linux/kernel.h> |
2af16c1f DO |
30 | #include <linux/hid.h> |
31 | #include <linux/input.h> | |
c4eae84f | 32 | #include <linux/jiffies.h> |
c5e62676 | 33 | #include <linux/leds.h> |
2af16c1f | 34 | #include <linux/module.h> |
08ebba5c | 35 | #include <linux/power_supply.h> |
2af16c1f DO |
36 | #include <linux/spinlock.h> |
37 | ||
38 | /* | |
39 | * Reference the url below for the following HID report defines: | |
40 | * https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering | |
41 | */ | |
42 | ||
43 | /* Output Reports */ | |
daf11ca2 JK |
44 | #define JC_OUTPUT_RUMBLE_AND_SUBCMD 0x01 |
45 | #define JC_OUTPUT_FW_UPDATE_PKT 0x03 | |
46 | #define JC_OUTPUT_RUMBLE_ONLY 0x10 | |
47 | #define JC_OUTPUT_MCU_DATA 0x11 | |
48 | #define JC_OUTPUT_USB_CMD 0x80 | |
2af16c1f DO |
49 | |
50 | /* Subcommand IDs */ | |
daf11ca2 JK |
51 | #define JC_SUBCMD_STATE 0x00 |
52 | #define JC_SUBCMD_MANUAL_BT_PAIRING 0x01 | |
53 | #define JC_SUBCMD_REQ_DEV_INFO 0x02 | |
54 | #define JC_SUBCMD_SET_REPORT_MODE 0x03 | |
55 | #define JC_SUBCMD_TRIGGERS_ELAPSED 0x04 | |
56 | #define JC_SUBCMD_GET_PAGE_LIST_STATE 0x05 | |
57 | #define JC_SUBCMD_SET_HCI_STATE 0x06 | |
58 | #define JC_SUBCMD_RESET_PAIRING_INFO 0x07 | |
59 | #define JC_SUBCMD_LOW_POWER_MODE 0x08 | |
60 | #define JC_SUBCMD_SPI_FLASH_READ 0x10 | |
61 | #define JC_SUBCMD_SPI_FLASH_WRITE 0x11 | |
62 | #define JC_SUBCMD_RESET_MCU 0x20 | |
63 | #define JC_SUBCMD_SET_MCU_CONFIG 0x21 | |
64 | #define JC_SUBCMD_SET_MCU_STATE 0x22 | |
65 | #define JC_SUBCMD_SET_PLAYER_LIGHTS 0x30 | |
66 | #define JC_SUBCMD_GET_PLAYER_LIGHTS 0x31 | |
67 | #define JC_SUBCMD_SET_HOME_LIGHT 0x38 | |
68 | #define JC_SUBCMD_ENABLE_IMU 0x40 | |
69 | #define JC_SUBCMD_SET_IMU_SENSITIVITY 0x41 | |
70 | #define JC_SUBCMD_WRITE_IMU_REG 0x42 | |
71 | #define JC_SUBCMD_READ_IMU_REG 0x43 | |
72 | #define JC_SUBCMD_ENABLE_VIBRATION 0x48 | |
73 | #define JC_SUBCMD_GET_REGULATED_VOLTAGE 0x50 | |
2af16c1f DO |
74 | |
75 | /* Input Reports */ | |
daf11ca2 JK |
76 | #define JC_INPUT_BUTTON_EVENT 0x3F |
77 | #define JC_INPUT_SUBCMD_REPLY 0x21 | |
78 | #define JC_INPUT_IMU_DATA 0x30 | |
79 | #define JC_INPUT_MCU_DATA 0x31 | |
80 | #define JC_INPUT_USB_RESPONSE 0x81 | |
2af16c1f DO |
81 | |
82 | /* Feature Reports */ | |
daf11ca2 JK |
83 | #define JC_FEATURE_LAST_SUBCMD 0x02 |
84 | #define JC_FEATURE_OTA_FW_UPGRADE 0x70 | |
85 | #define JC_FEATURE_SETUP_MEM_READ 0x71 | |
86 | #define JC_FEATURE_MEM_READ 0x72 | |
87 | #define JC_FEATURE_ERASE_MEM_SECTOR 0x73 | |
88 | #define JC_FEATURE_MEM_WRITE 0x74 | |
89 | #define JC_FEATURE_LAUNCH 0x75 | |
2af16c1f DO |
90 | |
91 | /* USB Commands */ | |
daf11ca2 JK |
92 | #define JC_USB_CMD_CONN_STATUS 0x01 |
93 | #define JC_USB_CMD_HANDSHAKE 0x02 | |
94 | #define JC_USB_CMD_BAUDRATE_3M 0x03 | |
95 | #define JC_USB_CMD_NO_TIMEOUT 0x04 | |
96 | #define JC_USB_CMD_EN_TIMEOUT 0x05 | |
97 | #define JC_USB_RESET 0x06 | |
98 | #define JC_USB_PRE_HANDSHAKE 0x91 | |
99 | #define JC_USB_SEND_UART 0x92 | |
2af16c1f | 100 | |
83d640c4 | 101 | /* Magic value denoting presence of user calibration */ |
daf11ca2 JK |
102 | #define JC_CAL_USR_MAGIC_0 0xB2 |
103 | #define JC_CAL_USR_MAGIC_1 0xA1 | |
104 | #define JC_CAL_USR_MAGIC_SIZE 2 | |
83d640c4 DO |
105 | |
106 | /* SPI storage addresses of user calibration data */ | |
daf11ca2 JK |
107 | #define JC_CAL_USR_LEFT_MAGIC_ADDR 0x8010 |
108 | #define JC_CAL_USR_LEFT_DATA_ADDR 0x8012 | |
109 | #define JC_CAL_USR_LEFT_DATA_END 0x801A | |
110 | #define JC_CAL_USR_RIGHT_MAGIC_ADDR 0x801B | |
111 | #define JC_CAL_USR_RIGHT_DATA_ADDR 0x801D | |
83d640c4 DO |
112 | #define JC_CAL_STICK_DATA_SIZE \ |
113 | (JC_CAL_USR_LEFT_DATA_END - JC_CAL_USR_LEFT_DATA_ADDR + 1) | |
2af16c1f | 114 | |
83d640c4 | 115 | /* SPI storage addresses of factory calibration data */ |
daf11ca2 JK |
116 | #define JC_CAL_FCT_DATA_LEFT_ADDR 0x603d |
117 | #define JC_CAL_FCT_DATA_RIGHT_ADDR 0x6046 | |
2af16c1f | 118 | |
4ff5b108 | 119 | /* SPI storage addresses of IMU factory calibration data */ |
daf11ca2 JK |
120 | #define JC_IMU_CAL_FCT_DATA_ADDR 0x6020 |
121 | #define JC_IMU_CAL_FCT_DATA_END 0x6037 | |
4ff5b108 DO |
122 | #define JC_IMU_CAL_DATA_SIZE \ |
123 | (JC_IMU_CAL_FCT_DATA_END - JC_IMU_CAL_FCT_DATA_ADDR + 1) | |
124 | /* SPI storage addresses of IMU user calibration data */ | |
daf11ca2 JK |
125 | #define JC_IMU_CAL_USR_MAGIC_ADDR 0x8026 |
126 | #define JC_IMU_CAL_USR_DATA_ADDR 0x8028 | |
4ff5b108 | 127 | |
2af16c1f | 128 | /* The raw analog joystick values will be mapped in terms of this magnitude */ |
daf11ca2 JK |
129 | #define JC_MAX_STICK_MAG 32767 |
130 | #define JC_STICK_FUZZ 250 | |
131 | #define JC_STICK_FLAT 500 | |
2af16c1f DO |
132 | |
133 | /* Hat values for pro controller's d-pad */ | |
daf11ca2 JK |
134 | #define JC_MAX_DPAD_MAG 1 |
135 | #define JC_DPAD_FUZZ 0 | |
136 | #define JC_DPAD_FLAT 0 | |
2af16c1f | 137 | |
4ff5b108 | 138 | /* Under most circumstances IMU reports are pushed every 15ms; use as default */ |
daf11ca2 | 139 | #define JC_IMU_DFLT_AVG_DELTA_MS 15 |
4ff5b108 | 140 | /* How many samples to sum before calculating average IMU report delta */ |
daf11ca2 | 141 | #define JC_IMU_SAMPLES_PER_DELTA_AVG 300 |
4ff5b108 | 142 | /* Controls how many dropped IMU packets at once trigger a warning message */ |
daf11ca2 | 143 | #define JC_IMU_DROPPED_PKT_WARNING 3 |
4ff5b108 DO |
144 | |
145 | /* | |
146 | * The controller's accelerometer has a sensor resolution of 16bits and is | |
147 | * configured with a range of +-8000 milliGs. Therefore, the resolution can be | |
148 | * calculated thus: (2^16-1)/(8000 * 2) = 4.096 digits per milliG | |
149 | * Resolution per G (rather than per millliG): 4.096 * 1000 = 4096 digits per G | |
150 | * Alternatively: 1/4096 = .0002441 Gs per digit | |
151 | */ | |
daf11ca2 JK |
152 | #define JC_IMU_MAX_ACCEL_MAG 32767 |
153 | #define JC_IMU_ACCEL_RES_PER_G 4096 | |
154 | #define JC_IMU_ACCEL_FUZZ 10 | |
155 | #define JC_IMU_ACCEL_FLAT 0 | |
4ff5b108 DO |
156 | |
157 | /* | |
158 | * The controller's gyroscope has a sensor resolution of 16bits and is | |
159 | * configured with a range of +-2000 degrees/second. | |
160 | * Digits per dps: (2^16 -1)/(2000*2) = 16.38375 | |
161 | * dps per digit: 16.38375E-1 = .0610 | |
162 | * | |
163 | * STMicro recommends in the datasheet to add 15% to the dps/digit. This allows | |
164 | * the full sensitivity range to be saturated without clipping. This yields more | |
165 | * accurate results, so it's the technique this driver uses. | |
166 | * dps per digit (corrected): .0610 * 1.15 = .0702 | |
167 | * digits per dps (corrected): .0702E-1 = 14.247 | |
168 | * | |
169 | * Now, 14.247 truncating to 14 loses a lot of precision, so we rescale the | |
170 | * min/max range by 1000. | |
171 | */ | |
daf11ca2 | 172 | #define JC_IMU_PREC_RANGE_SCALE 1000 |
4ff5b108 | 173 | /* Note: change mag and res_per_dps if prec_range_scale is ever altered */ |
daf11ca2 JK |
174 | #define JC_IMU_MAX_GYRO_MAG 32767000 /* (2^16-1)*1000 */ |
175 | #define JC_IMU_GYRO_RES_PER_DPS 14247 /* (14.247*1000) */ | |
176 | #define JC_IMU_GYRO_FUZZ 10 | |
177 | #define JC_IMU_GYRO_FLAT 0 | |
4ff5b108 | 178 | |
c4eae84f DO |
179 | /* frequency/amplitude tables for rumble */ |
180 | struct joycon_rumble_freq_data { | |
181 | u16 high; | |
182 | u8 low; | |
183 | u16 freq; /* Hz*/ | |
184 | }; | |
185 | ||
186 | struct joycon_rumble_amp_data { | |
187 | u8 high; | |
188 | u16 low; | |
189 | u16 amp; | |
190 | }; | |
191 | ||
192 | /* | |
193 | * These tables are from | |
194 | * https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering/blob/master/rumble_data_table.md | |
195 | */ | |
196 | static const struct joycon_rumble_freq_data joycon_rumble_frequencies[] = { | |
197 | /* high, low, freq */ | |
198 | { 0x0000, 0x01, 41 }, { 0x0000, 0x02, 42 }, { 0x0000, 0x03, 43 }, | |
199 | { 0x0000, 0x04, 44 }, { 0x0000, 0x05, 45 }, { 0x0000, 0x06, 46 }, | |
200 | { 0x0000, 0x07, 47 }, { 0x0000, 0x08, 48 }, { 0x0000, 0x09, 49 }, | |
201 | { 0x0000, 0x0A, 50 }, { 0x0000, 0x0B, 51 }, { 0x0000, 0x0C, 52 }, | |
202 | { 0x0000, 0x0D, 53 }, { 0x0000, 0x0E, 54 }, { 0x0000, 0x0F, 55 }, | |
203 | { 0x0000, 0x10, 57 }, { 0x0000, 0x11, 58 }, { 0x0000, 0x12, 59 }, | |
204 | { 0x0000, 0x13, 60 }, { 0x0000, 0x14, 62 }, { 0x0000, 0x15, 63 }, | |
205 | { 0x0000, 0x16, 64 }, { 0x0000, 0x17, 66 }, { 0x0000, 0x18, 67 }, | |
206 | { 0x0000, 0x19, 69 }, { 0x0000, 0x1A, 70 }, { 0x0000, 0x1B, 72 }, | |
207 | { 0x0000, 0x1C, 73 }, { 0x0000, 0x1D, 75 }, { 0x0000, 0x1e, 77 }, | |
208 | { 0x0000, 0x1f, 78 }, { 0x0000, 0x20, 80 }, { 0x0400, 0x21, 82 }, | |
209 | { 0x0800, 0x22, 84 }, { 0x0c00, 0x23, 85 }, { 0x1000, 0x24, 87 }, | |
210 | { 0x1400, 0x25, 89 }, { 0x1800, 0x26, 91 }, { 0x1c00, 0x27, 93 }, | |
211 | { 0x2000, 0x28, 95 }, { 0x2400, 0x29, 97 }, { 0x2800, 0x2a, 99 }, | |
212 | { 0x2c00, 0x2b, 102 }, { 0x3000, 0x2c, 104 }, { 0x3400, 0x2d, 106 }, | |
213 | { 0x3800, 0x2e, 108 }, { 0x3c00, 0x2f, 111 }, { 0x4000, 0x30, 113 }, | |
214 | { 0x4400, 0x31, 116 }, { 0x4800, 0x32, 118 }, { 0x4c00, 0x33, 121 }, | |
215 | { 0x5000, 0x34, 123 }, { 0x5400, 0x35, 126 }, { 0x5800, 0x36, 129 }, | |
216 | { 0x5c00, 0x37, 132 }, { 0x6000, 0x38, 135 }, { 0x6400, 0x39, 137 }, | |
217 | { 0x6800, 0x3a, 141 }, { 0x6c00, 0x3b, 144 }, { 0x7000, 0x3c, 147 }, | |
218 | { 0x7400, 0x3d, 150 }, { 0x7800, 0x3e, 153 }, { 0x7c00, 0x3f, 157 }, | |
219 | { 0x8000, 0x40, 160 }, { 0x8400, 0x41, 164 }, { 0x8800, 0x42, 167 }, | |
220 | { 0x8c00, 0x43, 171 }, { 0x9000, 0x44, 174 }, { 0x9400, 0x45, 178 }, | |
221 | { 0x9800, 0x46, 182 }, { 0x9c00, 0x47, 186 }, { 0xa000, 0x48, 190 }, | |
222 | { 0xa400, 0x49, 194 }, { 0xa800, 0x4a, 199 }, { 0xac00, 0x4b, 203 }, | |
223 | { 0xb000, 0x4c, 207 }, { 0xb400, 0x4d, 212 }, { 0xb800, 0x4e, 217 }, | |
224 | { 0xbc00, 0x4f, 221 }, { 0xc000, 0x50, 226 }, { 0xc400, 0x51, 231 }, | |
225 | { 0xc800, 0x52, 236 }, { 0xcc00, 0x53, 241 }, { 0xd000, 0x54, 247 }, | |
226 | { 0xd400, 0x55, 252 }, { 0xd800, 0x56, 258 }, { 0xdc00, 0x57, 263 }, | |
227 | { 0xe000, 0x58, 269 }, { 0xe400, 0x59, 275 }, { 0xe800, 0x5a, 281 }, | |
228 | { 0xec00, 0x5b, 287 }, { 0xf000, 0x5c, 293 }, { 0xf400, 0x5d, 300 }, | |
229 | { 0xf800, 0x5e, 306 }, { 0xfc00, 0x5f, 313 }, { 0x0001, 0x60, 320 }, | |
230 | { 0x0401, 0x61, 327 }, { 0x0801, 0x62, 334 }, { 0x0c01, 0x63, 341 }, | |
231 | { 0x1001, 0x64, 349 }, { 0x1401, 0x65, 357 }, { 0x1801, 0x66, 364 }, | |
232 | { 0x1c01, 0x67, 372 }, { 0x2001, 0x68, 381 }, { 0x2401, 0x69, 389 }, | |
233 | { 0x2801, 0x6a, 397 }, { 0x2c01, 0x6b, 406 }, { 0x3001, 0x6c, 415 }, | |
234 | { 0x3401, 0x6d, 424 }, { 0x3801, 0x6e, 433 }, { 0x3c01, 0x6f, 443 }, | |
235 | { 0x4001, 0x70, 453 }, { 0x4401, 0x71, 462 }, { 0x4801, 0x72, 473 }, | |
236 | { 0x4c01, 0x73, 483 }, { 0x5001, 0x74, 494 }, { 0x5401, 0x75, 504 }, | |
237 | { 0x5801, 0x76, 515 }, { 0x5c01, 0x77, 527 }, { 0x6001, 0x78, 538 }, | |
238 | { 0x6401, 0x79, 550 }, { 0x6801, 0x7a, 562 }, { 0x6c01, 0x7b, 574 }, | |
239 | { 0x7001, 0x7c, 587 }, { 0x7401, 0x7d, 600 }, { 0x7801, 0x7e, 613 }, | |
240 | { 0x7c01, 0x7f, 626 }, { 0x8001, 0x00, 640 }, { 0x8401, 0x00, 654 }, | |
241 | { 0x8801, 0x00, 668 }, { 0x8c01, 0x00, 683 }, { 0x9001, 0x00, 698 }, | |
242 | { 0x9401, 0x00, 713 }, { 0x9801, 0x00, 729 }, { 0x9c01, 0x00, 745 }, | |
243 | { 0xa001, 0x00, 761 }, { 0xa401, 0x00, 778 }, { 0xa801, 0x00, 795 }, | |
244 | { 0xac01, 0x00, 812 }, { 0xb001, 0x00, 830 }, { 0xb401, 0x00, 848 }, | |
245 | { 0xb801, 0x00, 867 }, { 0xbc01, 0x00, 886 }, { 0xc001, 0x00, 905 }, | |
246 | { 0xc401, 0x00, 925 }, { 0xc801, 0x00, 945 }, { 0xcc01, 0x00, 966 }, | |
247 | { 0xd001, 0x00, 987 }, { 0xd401, 0x00, 1009 }, { 0xd801, 0x00, 1031 }, | |
248 | { 0xdc01, 0x00, 1053 }, { 0xe001, 0x00, 1076 }, { 0xe401, 0x00, 1100 }, | |
249 | { 0xe801, 0x00, 1124 }, { 0xec01, 0x00, 1149 }, { 0xf001, 0x00, 1174 }, | |
250 | { 0xf401, 0x00, 1199 }, { 0xf801, 0x00, 1226 }, { 0xfc01, 0x00, 1253 } | |
251 | }; | |
252 | ||
253 | #define joycon_max_rumble_amp (1003) | |
254 | static const struct joycon_rumble_amp_data joycon_rumble_amplitudes[] = { | |
255 | /* high, low, amp */ | |
256 | { 0x00, 0x0040, 0 }, | |
257 | { 0x02, 0x8040, 10 }, { 0x04, 0x0041, 12 }, { 0x06, 0x8041, 14 }, | |
258 | { 0x08, 0x0042, 17 }, { 0x0a, 0x8042, 20 }, { 0x0c, 0x0043, 24 }, | |
259 | { 0x0e, 0x8043, 28 }, { 0x10, 0x0044, 33 }, { 0x12, 0x8044, 40 }, | |
260 | { 0x14, 0x0045, 47 }, { 0x16, 0x8045, 56 }, { 0x18, 0x0046, 67 }, | |
261 | { 0x1a, 0x8046, 80 }, { 0x1c, 0x0047, 95 }, { 0x1e, 0x8047, 112 }, | |
262 | { 0x20, 0x0048, 117 }, { 0x22, 0x8048, 123 }, { 0x24, 0x0049, 128 }, | |
263 | { 0x26, 0x8049, 134 }, { 0x28, 0x004a, 140 }, { 0x2a, 0x804a, 146 }, | |
264 | { 0x2c, 0x004b, 152 }, { 0x2e, 0x804b, 159 }, { 0x30, 0x004c, 166 }, | |
265 | { 0x32, 0x804c, 173 }, { 0x34, 0x004d, 181 }, { 0x36, 0x804d, 189 }, | |
266 | { 0x38, 0x004e, 198 }, { 0x3a, 0x804e, 206 }, { 0x3c, 0x004f, 215 }, | |
267 | { 0x3e, 0x804f, 225 }, { 0x40, 0x0050, 230 }, { 0x42, 0x8050, 235 }, | |
268 | { 0x44, 0x0051, 240 }, { 0x46, 0x8051, 245 }, { 0x48, 0x0052, 251 }, | |
269 | { 0x4a, 0x8052, 256 }, { 0x4c, 0x0053, 262 }, { 0x4e, 0x8053, 268 }, | |
270 | { 0x50, 0x0054, 273 }, { 0x52, 0x8054, 279 }, { 0x54, 0x0055, 286 }, | |
271 | { 0x56, 0x8055, 292 }, { 0x58, 0x0056, 298 }, { 0x5a, 0x8056, 305 }, | |
272 | { 0x5c, 0x0057, 311 }, { 0x5e, 0x8057, 318 }, { 0x60, 0x0058, 325 }, | |
273 | { 0x62, 0x8058, 332 }, { 0x64, 0x0059, 340 }, { 0x66, 0x8059, 347 }, | |
274 | { 0x68, 0x005a, 355 }, { 0x6a, 0x805a, 362 }, { 0x6c, 0x005b, 370 }, | |
275 | { 0x6e, 0x805b, 378 }, { 0x70, 0x005c, 387 }, { 0x72, 0x805c, 395 }, | |
276 | { 0x74, 0x005d, 404 }, { 0x76, 0x805d, 413 }, { 0x78, 0x005e, 422 }, | |
277 | { 0x7a, 0x805e, 431 }, { 0x7c, 0x005f, 440 }, { 0x7e, 0x805f, 450 }, | |
278 | { 0x80, 0x0060, 460 }, { 0x82, 0x8060, 470 }, { 0x84, 0x0061, 480 }, | |
279 | { 0x86, 0x8061, 491 }, { 0x88, 0x0062, 501 }, { 0x8a, 0x8062, 512 }, | |
280 | { 0x8c, 0x0063, 524 }, { 0x8e, 0x8063, 535 }, { 0x90, 0x0064, 547 }, | |
281 | { 0x92, 0x8064, 559 }, { 0x94, 0x0065, 571 }, { 0x96, 0x8065, 584 }, | |
282 | { 0x98, 0x0066, 596 }, { 0x9a, 0x8066, 609 }, { 0x9c, 0x0067, 623 }, | |
283 | { 0x9e, 0x8067, 636 }, { 0xa0, 0x0068, 650 }, { 0xa2, 0x8068, 665 }, | |
284 | { 0xa4, 0x0069, 679 }, { 0xa6, 0x8069, 694 }, { 0xa8, 0x006a, 709 }, | |
285 | { 0xaa, 0x806a, 725 }, { 0xac, 0x006b, 741 }, { 0xae, 0x806b, 757 }, | |
286 | { 0xb0, 0x006c, 773 }, { 0xb2, 0x806c, 790 }, { 0xb4, 0x006d, 808 }, | |
287 | { 0xb6, 0x806d, 825 }, { 0xb8, 0x006e, 843 }, { 0xba, 0x806e, 862 }, | |
288 | { 0xbc, 0x006f, 881 }, { 0xbe, 0x806f, 900 }, { 0xc0, 0x0070, 920 }, | |
289 | { 0xc2, 0x8070, 940 }, { 0xc4, 0x0071, 960 }, { 0xc6, 0x8071, 981 }, | |
290 | { 0xc8, 0x0072, joycon_max_rumble_amp } | |
291 | }; | |
292 | ||
2af16c1f DO |
293 | /* States for controller state machine */ |
294 | enum joycon_ctlr_state { | |
295 | JOYCON_CTLR_STATE_INIT, | |
296 | JOYCON_CTLR_STATE_READ, | |
012bd52c | 297 | JOYCON_CTLR_STATE_REMOVED, |
2af16c1f DO |
298 | }; |
299 | ||
294a8287 DO |
300 | /* Controller type received as part of device info */ |
301 | enum joycon_ctlr_type { | |
302 | JOYCON_CTLR_TYPE_JCL = 0x01, | |
303 | JOYCON_CTLR_TYPE_JCR = 0x02, | |
304 | JOYCON_CTLR_TYPE_PRO = 0x03, | |
305 | }; | |
306 | ||
2af16c1f DO |
307 | struct joycon_stick_cal { |
308 | s32 max; | |
309 | s32 min; | |
310 | s32 center; | |
311 | }; | |
312 | ||
4ff5b108 DO |
313 | struct joycon_imu_cal { |
314 | s16 offset[3]; | |
315 | s16 scale[3]; | |
316 | }; | |
317 | ||
2af16c1f DO |
318 | /* |
319 | * All the controller's button values are stored in a u32. | |
320 | * They can be accessed with bitwise ANDs. | |
321 | */ | |
322 | static const u32 JC_BTN_Y = BIT(0); | |
323 | static const u32 JC_BTN_X = BIT(1); | |
324 | static const u32 JC_BTN_B = BIT(2); | |
325 | static const u32 JC_BTN_A = BIT(3); | |
326 | static const u32 JC_BTN_SR_R = BIT(4); | |
327 | static const u32 JC_BTN_SL_R = BIT(5); | |
328 | static const u32 JC_BTN_R = BIT(6); | |
329 | static const u32 JC_BTN_ZR = BIT(7); | |
330 | static const u32 JC_BTN_MINUS = BIT(8); | |
331 | static const u32 JC_BTN_PLUS = BIT(9); | |
332 | static const u32 JC_BTN_RSTICK = BIT(10); | |
333 | static const u32 JC_BTN_LSTICK = BIT(11); | |
334 | static const u32 JC_BTN_HOME = BIT(12); | |
335 | static const u32 JC_BTN_CAP = BIT(13); /* capture button */ | |
336 | static const u32 JC_BTN_DOWN = BIT(16); | |
337 | static const u32 JC_BTN_UP = BIT(17); | |
338 | static const u32 JC_BTN_RIGHT = BIT(18); | |
339 | static const u32 JC_BTN_LEFT = BIT(19); | |
340 | static const u32 JC_BTN_SR_L = BIT(20); | |
341 | static const u32 JC_BTN_SL_L = BIT(21); | |
342 | static const u32 JC_BTN_L = BIT(22); | |
343 | static const u32 JC_BTN_ZL = BIT(23); | |
344 | ||
345 | enum joycon_msg_type { | |
346 | JOYCON_MSG_TYPE_NONE, | |
347 | JOYCON_MSG_TYPE_USB, | |
348 | JOYCON_MSG_TYPE_SUBCMD, | |
349 | }; | |
350 | ||
4c048f6b DO |
351 | struct joycon_rumble_output { |
352 | u8 output_id; | |
353 | u8 packet_num; | |
354 | u8 rumble_data[8]; | |
355 | } __packed; | |
356 | ||
2af16c1f DO |
357 | struct joycon_subcmd_request { |
358 | u8 output_id; /* must be 0x01 for subcommand, 0x10 for rumble only */ | |
359 | u8 packet_num; /* incremented every send */ | |
360 | u8 rumble_data[8]; | |
361 | u8 subcmd_id; | |
362 | u8 data[]; /* length depends on the subcommand */ | |
363 | } __packed; | |
364 | ||
365 | struct joycon_subcmd_reply { | |
366 | u8 ack; /* MSB 1 for ACK, 0 for NACK */ | |
367 | u8 id; /* id of requested subcmd */ | |
368 | u8 data[]; /* will be at most 35 bytes */ | |
369 | } __packed; | |
370 | ||
4ff5b108 DO |
371 | struct joycon_imu_data { |
372 | s16 accel_x; | |
373 | s16 accel_y; | |
374 | s16 accel_z; | |
375 | s16 gyro_x; | |
376 | s16 gyro_y; | |
377 | s16 gyro_z; | |
378 | } __packed; | |
379 | ||
2af16c1f DO |
380 | struct joycon_input_report { |
381 | u8 id; | |
382 | u8 timer; | |
383 | u8 bat_con; /* battery and connection info */ | |
384 | u8 button_status[3]; | |
385 | u8 left_stick[3]; | |
386 | u8 right_stick[3]; | |
387 | u8 vibrator_report; | |
388 | ||
4ff5b108 DO |
389 | union { |
390 | struct joycon_subcmd_reply subcmd_reply; | |
391 | /* IMU input reports contain 3 samples */ | |
392 | u8 imu_raw_bytes[sizeof(struct joycon_imu_data) * 3]; | |
393 | }; | |
2af16c1f DO |
394 | } __packed; |
395 | ||
396 | #define JC_MAX_RESP_SIZE (sizeof(struct joycon_input_report) + 35) | |
c4eae84f DO |
397 | #define JC_RUMBLE_DATA_SIZE 8 |
398 | #define JC_RUMBLE_QUEUE_SIZE 8 | |
399 | ||
400 | static const u16 JC_RUMBLE_DFLT_LOW_FREQ = 160; | |
401 | static const u16 JC_RUMBLE_DFLT_HIGH_FREQ = 320; | |
402 | static const u16 JC_RUMBLE_PERIOD_MS = 50; | |
dad74e18 | 403 | static const unsigned short JC_RUMBLE_ZERO_AMP_PKT_CNT = 5; |
2af16c1f | 404 | |
c5e62676 DO |
405 | static const char * const joycon_player_led_names[] = { |
406 | LED_FUNCTION_PLAYER1, | |
407 | LED_FUNCTION_PLAYER2, | |
408 | LED_FUNCTION_PLAYER3, | |
409 | LED_FUNCTION_PLAYER4, | |
410 | }; | |
411 | #define JC_NUM_LEDS ARRAY_SIZE(joycon_player_led_names) | |
412 | ||
2af16c1f DO |
413 | /* Each physical controller is associated with a joycon_ctlr struct */ |
414 | struct joycon_ctlr { | |
415 | struct hid_device *hdev; | |
416 | struct input_dev *input; | |
697e5c7a DO |
417 | struct led_classdev leds[JC_NUM_LEDS]; /* player leds */ |
418 | struct led_classdev home_led; | |
2af16c1f | 419 | enum joycon_ctlr_state ctlr_state; |
08ebba5c | 420 | spinlock_t lock; |
14252473 DO |
421 | u8 mac_addr[6]; |
422 | char *mac_addr_str; | |
294a8287 | 423 | enum joycon_ctlr_type ctlr_type; |
2af16c1f DO |
424 | |
425 | /* The following members are used for synchronous sends/receives */ | |
426 | enum joycon_msg_type msg_type; | |
427 | u8 subcmd_num; | |
428 | struct mutex output_mutex; | |
429 | u8 input_buf[JC_MAX_RESP_SIZE]; | |
430 | wait_queue_head_t wait; | |
431 | bool received_resp; | |
432 | u8 usb_ack_match; | |
433 | u8 subcmd_ack_match; | |
479da173 | 434 | bool received_input_report; |
e93363f7 | 435 | unsigned int last_subcmd_sent_msecs; |
2af16c1f DO |
436 | |
437 | /* factory calibration data */ | |
438 | struct joycon_stick_cal left_stick_cal_x; | |
439 | struct joycon_stick_cal left_stick_cal_y; | |
440 | struct joycon_stick_cal right_stick_cal_x; | |
441 | struct joycon_stick_cal right_stick_cal_y; | |
442 | ||
4ff5b108 DO |
443 | struct joycon_imu_cal accel_cal; |
444 | struct joycon_imu_cal gyro_cal; | |
445 | ||
446 | /* prevents needlessly recalculating these divisors every sample */ | |
447 | s32 imu_cal_accel_divisor[3]; | |
448 | s32 imu_cal_gyro_divisor[3]; | |
449 | ||
08ebba5c DO |
450 | /* power supply data */ |
451 | struct power_supply *battery; | |
452 | struct power_supply_desc battery_desc; | |
453 | u8 battery_capacity; | |
454 | bool battery_charging; | |
455 | bool host_powered; | |
c4eae84f DO |
456 | |
457 | /* rumble */ | |
458 | u8 rumble_data[JC_RUMBLE_QUEUE_SIZE][JC_RUMBLE_DATA_SIZE]; | |
459 | int rumble_queue_head; | |
460 | int rumble_queue_tail; | |
461 | struct workqueue_struct *rumble_queue; | |
462 | struct work_struct rumble_worker; | |
463 | unsigned int rumble_msecs; | |
464 | u16 rumble_ll_freq; | |
465 | u16 rumble_lh_freq; | |
466 | u16 rumble_rl_freq; | |
467 | u16 rumble_rh_freq; | |
dad74e18 | 468 | unsigned short rumble_zero_countdown; |
4ff5b108 DO |
469 | |
470 | /* imu */ | |
471 | struct input_dev *imu_input; | |
472 | bool imu_first_packet_received; /* helps in initiating timestamp */ | |
473 | unsigned int imu_timestamp_us; /* timestamp we report to userspace */ | |
474 | unsigned int imu_last_pkt_ms; /* used to calc imu report delta */ | |
475 | /* the following are used to track the average imu report time delta */ | |
476 | unsigned int imu_delta_samples_count; | |
477 | unsigned int imu_delta_samples_sum; | |
478 | unsigned int imu_avg_delta_ms; | |
2af16c1f DO |
479 | }; |
480 | ||
294a8287 DO |
481 | /* Helper macros for checking controller type */ |
482 | #define jc_type_is_joycon(ctlr) \ | |
483 | (ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONL || \ | |
484 | ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONR || \ | |
485 | ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_CHRGGRIP) | |
486 | #define jc_type_is_procon(ctlr) \ | |
487 | (ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_PROCON) | |
488 | #define jc_type_is_chrggrip(ctlr) \ | |
489 | (ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_CHRGGRIP) | |
490 | ||
491 | /* Does this controller have inputs associated with left joycon? */ | |
492 | #define jc_type_has_left(ctlr) \ | |
493 | (ctlr->ctlr_type == JOYCON_CTLR_TYPE_JCL || \ | |
494 | ctlr->ctlr_type == JOYCON_CTLR_TYPE_PRO) | |
495 | ||
496 | /* Does this controller have inputs associated with right joycon? */ | |
497 | #define jc_type_has_right(ctlr) \ | |
498 | (ctlr->ctlr_type == JOYCON_CTLR_TYPE_JCR || \ | |
499 | ctlr->ctlr_type == JOYCON_CTLR_TYPE_PRO) | |
500 | ||
2af16c1f DO |
501 | static int __joycon_hid_send(struct hid_device *hdev, u8 *data, size_t len) |
502 | { | |
503 | u8 *buf; | |
504 | int ret; | |
505 | ||
506 | buf = kmemdup(data, len, GFP_KERNEL); | |
507 | if (!buf) | |
508 | return -ENOMEM; | |
509 | ret = hid_hw_output_report(hdev, buf, len); | |
510 | kfree(buf); | |
511 | if (ret < 0) | |
512 | hid_dbg(hdev, "Failed to send output report ret=%d\n", ret); | |
513 | return ret; | |
514 | } | |
515 | ||
e93363f7 DO |
516 | static void joycon_wait_for_input_report(struct joycon_ctlr *ctlr) |
517 | { | |
518 | int ret; | |
519 | ||
520 | /* | |
521 | * If we are in the proper reporting mode, wait for an input | |
522 | * report prior to sending the subcommand. This improves | |
523 | * reliability considerably. | |
524 | */ | |
525 | if (ctlr->ctlr_state == JOYCON_CTLR_STATE_READ) { | |
526 | unsigned long flags; | |
527 | ||
528 | spin_lock_irqsave(&ctlr->lock, flags); | |
529 | ctlr->received_input_report = false; | |
530 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
531 | ret = wait_event_timeout(ctlr->wait, | |
532 | ctlr->received_input_report, | |
533 | HZ / 4); | |
534 | /* We will still proceed, even with a timeout here */ | |
535 | if (!ret) | |
536 | hid_warn(ctlr->hdev, | |
537 | "timeout waiting for input report\n"); | |
538 | } | |
539 | } | |
540 | ||
541 | /* | |
542 | * Sending subcommands and/or rumble data at too high a rate can cause bluetooth | |
543 | * controller disconnections. | |
544 | */ | |
545 | static void joycon_enforce_subcmd_rate(struct joycon_ctlr *ctlr) | |
546 | { | |
547 | static const unsigned int max_subcmd_rate_ms = 25; | |
548 | unsigned int current_ms = jiffies_to_msecs(jiffies); | |
549 | unsigned int delta_ms = current_ms - ctlr->last_subcmd_sent_msecs; | |
550 | ||
551 | while (delta_ms < max_subcmd_rate_ms && | |
552 | ctlr->ctlr_state == JOYCON_CTLR_STATE_READ) { | |
553 | joycon_wait_for_input_report(ctlr); | |
554 | current_ms = jiffies_to_msecs(jiffies); | |
555 | delta_ms = current_ms - ctlr->last_subcmd_sent_msecs; | |
556 | } | |
557 | ctlr->last_subcmd_sent_msecs = current_ms; | |
558 | } | |
559 | ||
6b5dca2d DO |
560 | static int joycon_hid_send_sync(struct joycon_ctlr *ctlr, u8 *data, size_t len, |
561 | u32 timeout) | |
2af16c1f DO |
562 | { |
563 | int ret; | |
6b5dca2d | 564 | int tries = 2; |
2af16c1f | 565 | |
6b5dca2d DO |
566 | /* |
567 | * The controller occasionally seems to drop subcommands. In testing, | |
568 | * doing one retry after a timeout appears to always work. | |
569 | */ | |
570 | while (tries--) { | |
e93363f7 | 571 | joycon_enforce_subcmd_rate(ctlr); |
479da173 | 572 | |
6b5dca2d DO |
573 | ret = __joycon_hid_send(ctlr->hdev, data, len); |
574 | if (ret < 0) { | |
575 | memset(ctlr->input_buf, 0, JC_MAX_RESP_SIZE); | |
576 | return ret; | |
577 | } | |
2af16c1f | 578 | |
6b5dca2d DO |
579 | ret = wait_event_timeout(ctlr->wait, ctlr->received_resp, |
580 | timeout); | |
581 | if (!ret) { | |
582 | hid_dbg(ctlr->hdev, | |
583 | "synchronous send/receive timed out\n"); | |
584 | if (tries) { | |
585 | hid_dbg(ctlr->hdev, | |
586 | "retrying sync send after timeout\n"); | |
587 | } | |
588 | memset(ctlr->input_buf, 0, JC_MAX_RESP_SIZE); | |
589 | ret = -ETIMEDOUT; | |
590 | } else { | |
591 | ret = 0; | |
592 | break; | |
593 | } | |
2af16c1f DO |
594 | } |
595 | ||
596 | ctlr->received_resp = false; | |
6b5dca2d | 597 | return ret; |
2af16c1f DO |
598 | } |
599 | ||
6b5dca2d | 600 | static int joycon_send_usb(struct joycon_ctlr *ctlr, u8 cmd, u32 timeout) |
2af16c1f DO |
601 | { |
602 | int ret; | |
603 | u8 buf[2] = {JC_OUTPUT_USB_CMD}; | |
604 | ||
605 | buf[1] = cmd; | |
606 | ctlr->usb_ack_match = cmd; | |
607 | ctlr->msg_type = JOYCON_MSG_TYPE_USB; | |
6b5dca2d | 608 | ret = joycon_hid_send_sync(ctlr, buf, sizeof(buf), timeout); |
2af16c1f DO |
609 | if (ret) |
610 | hid_dbg(ctlr->hdev, "send usb command failed; ret=%d\n", ret); | |
611 | return ret; | |
612 | } | |
613 | ||
614 | static int joycon_send_subcmd(struct joycon_ctlr *ctlr, | |
615 | struct joycon_subcmd_request *subcmd, | |
6b5dca2d | 616 | size_t data_len, u32 timeout) |
2af16c1f DO |
617 | { |
618 | int ret; | |
c4eae84f DO |
619 | unsigned long flags; |
620 | ||
621 | spin_lock_irqsave(&ctlr->lock, flags); | |
012bd52c DO |
622 | /* |
623 | * If the controller has been removed, just return ENODEV so the LED | |
624 | * subsystem doesn't print invalid errors on removal. | |
625 | */ | |
626 | if (ctlr->ctlr_state == JOYCON_CTLR_STATE_REMOVED) { | |
627 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
628 | return -ENODEV; | |
629 | } | |
c4eae84f DO |
630 | memcpy(subcmd->rumble_data, ctlr->rumble_data[ctlr->rumble_queue_tail], |
631 | JC_RUMBLE_DATA_SIZE); | |
632 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
2af16c1f DO |
633 | |
634 | subcmd->output_id = JC_OUTPUT_RUMBLE_AND_SUBCMD; | |
635 | subcmd->packet_num = ctlr->subcmd_num; | |
636 | if (++ctlr->subcmd_num > 0xF) | |
637 | ctlr->subcmd_num = 0; | |
638 | ctlr->subcmd_ack_match = subcmd->subcmd_id; | |
639 | ctlr->msg_type = JOYCON_MSG_TYPE_SUBCMD; | |
640 | ||
641 | ret = joycon_hid_send_sync(ctlr, (u8 *)subcmd, | |
6b5dca2d | 642 | sizeof(*subcmd) + data_len, timeout); |
2af16c1f DO |
643 | if (ret < 0) |
644 | hid_dbg(ctlr->hdev, "send subcommand failed; ret=%d\n", ret); | |
645 | else | |
646 | ret = 0; | |
647 | return ret; | |
648 | } | |
649 | ||
650 | /* Supply nibbles for flash and on. Ones correspond to active */ | |
651 | static int joycon_set_player_leds(struct joycon_ctlr *ctlr, u8 flash, u8 on) | |
652 | { | |
653 | struct joycon_subcmd_request *req; | |
654 | u8 buffer[sizeof(*req) + 1] = { 0 }; | |
655 | ||
656 | req = (struct joycon_subcmd_request *)buffer; | |
657 | req->subcmd_id = JC_SUBCMD_SET_PLAYER_LIGHTS; | |
658 | req->data[0] = (flash << 4) | on; | |
659 | ||
660 | hid_dbg(ctlr->hdev, "setting player leds\n"); | |
6b5dca2d | 661 | return joycon_send_subcmd(ctlr, req, 1, HZ/4); |
2af16c1f DO |
662 | } |
663 | ||
83d640c4 DO |
664 | static int joycon_request_spi_flash_read(struct joycon_ctlr *ctlr, |
665 | u32 start_addr, u8 size, u8 **reply) | |
2af16c1f DO |
666 | { |
667 | struct joycon_subcmd_request *req; | |
2af16c1f | 668 | struct joycon_input_report *report; |
83d640c4 DO |
669 | u8 buffer[sizeof(*req) + 5] = { 0 }; |
670 | u8 *data; | |
671 | int ret; | |
672 | ||
673 | if (!reply) | |
674 | return -EINVAL; | |
675 | ||
676 | req = (struct joycon_subcmd_request *)buffer; | |
677 | req->subcmd_id = JC_SUBCMD_SPI_FLASH_READ; | |
678 | data = req->data; | |
679 | put_unaligned_le32(start_addr, data); | |
680 | data[4] = size; | |
681 | ||
682 | hid_dbg(ctlr->hdev, "requesting SPI flash data\n"); | |
683 | ret = joycon_send_subcmd(ctlr, req, 5, HZ); | |
684 | if (ret) { | |
685 | hid_err(ctlr->hdev, "failed reading SPI flash; ret=%d\n", ret); | |
686 | } else { | |
687 | report = (struct joycon_input_report *)ctlr->input_buf; | |
688 | /* The read data starts at the 6th byte */ | |
4ff5b108 | 689 | *reply = &report->subcmd_reply.data[5]; |
83d640c4 DO |
690 | } |
691 | return ret; | |
692 | } | |
693 | ||
694 | /* | |
695 | * User calibration's presence is denoted with a magic byte preceding it. | |
696 | * returns 0 if magic val is present, 1 if not present, < 0 on error | |
697 | */ | |
698 | static int joycon_check_for_cal_magic(struct joycon_ctlr *ctlr, u32 flash_addr) | |
699 | { | |
700 | int ret; | |
701 | u8 *reply; | |
702 | ||
703 | ret = joycon_request_spi_flash_read(ctlr, flash_addr, | |
704 | JC_CAL_USR_MAGIC_SIZE, &reply); | |
705 | if (ret) | |
706 | return ret; | |
707 | ||
708 | return reply[0] != JC_CAL_USR_MAGIC_0 || reply[1] != JC_CAL_USR_MAGIC_1; | |
709 | } | |
710 | ||
711 | static int joycon_read_stick_calibration(struct joycon_ctlr *ctlr, u16 cal_addr, | |
712 | struct joycon_stick_cal *cal_x, | |
713 | struct joycon_stick_cal *cal_y, | |
714 | bool left_stick) | |
715 | { | |
2af16c1f DO |
716 | s32 x_max_above; |
717 | s32 x_min_below; | |
718 | s32 y_max_above; | |
719 | s32 y_min_below; | |
2af16c1f DO |
720 | u8 *raw_cal; |
721 | int ret; | |
722 | ||
83d640c4 DO |
723 | ret = joycon_request_spi_flash_read(ctlr, cal_addr, |
724 | JC_CAL_STICK_DATA_SIZE, &raw_cal); | |
725 | if (ret) | |
726 | return ret; | |
727 | ||
728 | /* stick calibration parsing: note the order differs based on stick */ | |
729 | if (left_stick) { | |
730 | x_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 0), 0, | |
731 | 12); | |
732 | y_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 1), 4, | |
733 | 12); | |
734 | cal_x->center = hid_field_extract(ctlr->hdev, (raw_cal + 3), 0, | |
735 | 12); | |
736 | cal_y->center = hid_field_extract(ctlr->hdev, (raw_cal + 4), 4, | |
737 | 12); | |
738 | x_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 6), 0, | |
739 | 12); | |
740 | y_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 7), 4, | |
741 | 12); | |
742 | } else { | |
743 | cal_x->center = hid_field_extract(ctlr->hdev, (raw_cal + 0), 0, | |
744 | 12); | |
745 | cal_y->center = hid_field_extract(ctlr->hdev, (raw_cal + 1), 4, | |
746 | 12); | |
747 | x_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 3), 0, | |
748 | 12); | |
749 | y_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 4), 4, | |
750 | 12); | |
751 | x_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 6), 0, | |
752 | 12); | |
753 | y_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 7), 4, | |
754 | 12); | |
755 | } | |
756 | ||
757 | cal_x->max = cal_x->center + x_max_above; | |
758 | cal_x->min = cal_x->center - x_min_below; | |
759 | cal_y->max = cal_y->center + y_max_above; | |
760 | cal_y->min = cal_y->center - y_min_below; | |
761 | ||
762 | return 0; | |
763 | } | |
764 | ||
765 | static const u16 DFLT_STICK_CAL_CEN = 2000; | |
766 | static const u16 DFLT_STICK_CAL_MAX = 3500; | |
767 | static const u16 DFLT_STICK_CAL_MIN = 500; | |
768 | static int joycon_request_calibration(struct joycon_ctlr *ctlr) | |
769 | { | |
770 | u16 left_stick_addr = JC_CAL_FCT_DATA_LEFT_ADDR; | |
771 | u16 right_stick_addr = JC_CAL_FCT_DATA_RIGHT_ADDR; | |
772 | int ret; | |
2af16c1f DO |
773 | |
774 | hid_dbg(ctlr->hdev, "requesting cal data\n"); | |
83d640c4 DO |
775 | |
776 | /* check if user stick calibrations are present */ | |
777 | if (!joycon_check_for_cal_magic(ctlr, JC_CAL_USR_LEFT_MAGIC_ADDR)) { | |
778 | left_stick_addr = JC_CAL_USR_LEFT_DATA_ADDR; | |
779 | hid_info(ctlr->hdev, "using user cal for left stick\n"); | |
780 | } else { | |
781 | hid_info(ctlr->hdev, "using factory cal for left stick\n"); | |
782 | } | |
783 | if (!joycon_check_for_cal_magic(ctlr, JC_CAL_USR_RIGHT_MAGIC_ADDR)) { | |
784 | right_stick_addr = JC_CAL_USR_RIGHT_DATA_ADDR; | |
785 | hid_info(ctlr->hdev, "using user cal for right stick\n"); | |
786 | } else { | |
787 | hid_info(ctlr->hdev, "using factory cal for right stick\n"); | |
788 | } | |
789 | ||
790 | /* read the left stick calibration data */ | |
791 | ret = joycon_read_stick_calibration(ctlr, left_stick_addr, | |
792 | &ctlr->left_stick_cal_x, | |
793 | &ctlr->left_stick_cal_y, | |
794 | true); | |
2af16c1f DO |
795 | if (ret) { |
796 | hid_warn(ctlr->hdev, | |
83d640c4 | 797 | "Failed to read left stick cal, using dflts; e=%d\n", |
2af16c1f DO |
798 | ret); |
799 | ||
800 | ctlr->left_stick_cal_x.center = DFLT_STICK_CAL_CEN; | |
801 | ctlr->left_stick_cal_x.max = DFLT_STICK_CAL_MAX; | |
802 | ctlr->left_stick_cal_x.min = DFLT_STICK_CAL_MIN; | |
803 | ||
804 | ctlr->left_stick_cal_y.center = DFLT_STICK_CAL_CEN; | |
805 | ctlr->left_stick_cal_y.max = DFLT_STICK_CAL_MAX; | |
806 | ctlr->left_stick_cal_y.min = DFLT_STICK_CAL_MIN; | |
83d640c4 DO |
807 | } |
808 | ||
809 | /* read the right stick calibration data */ | |
810 | ret = joycon_read_stick_calibration(ctlr, right_stick_addr, | |
811 | &ctlr->right_stick_cal_x, | |
812 | &ctlr->right_stick_cal_y, | |
813 | false); | |
814 | if (ret) { | |
815 | hid_warn(ctlr->hdev, | |
816 | "Failed to read right stick cal, using dflts; e=%d\n", | |
817 | ret); | |
2af16c1f DO |
818 | |
819 | ctlr->right_stick_cal_x.center = DFLT_STICK_CAL_CEN; | |
820 | ctlr->right_stick_cal_x.max = DFLT_STICK_CAL_MAX; | |
821 | ctlr->right_stick_cal_x.min = DFLT_STICK_CAL_MIN; | |
822 | ||
823 | ctlr->right_stick_cal_y.center = DFLT_STICK_CAL_CEN; | |
824 | ctlr->right_stick_cal_y.max = DFLT_STICK_CAL_MAX; | |
825 | ctlr->right_stick_cal_y.min = DFLT_STICK_CAL_MIN; | |
2af16c1f DO |
826 | } |
827 | ||
2af16c1f DO |
828 | hid_dbg(ctlr->hdev, "calibration:\n" |
829 | "l_x_c=%d l_x_max=%d l_x_min=%d\n" | |
830 | "l_y_c=%d l_y_max=%d l_y_min=%d\n" | |
831 | "r_x_c=%d r_x_max=%d r_x_min=%d\n" | |
832 | "r_y_c=%d r_y_max=%d r_y_min=%d\n", | |
833 | ctlr->left_stick_cal_x.center, | |
834 | ctlr->left_stick_cal_x.max, | |
835 | ctlr->left_stick_cal_x.min, | |
836 | ctlr->left_stick_cal_y.center, | |
837 | ctlr->left_stick_cal_y.max, | |
838 | ctlr->left_stick_cal_y.min, | |
839 | ctlr->right_stick_cal_x.center, | |
840 | ctlr->right_stick_cal_x.max, | |
841 | ctlr->right_stick_cal_x.min, | |
842 | ctlr->right_stick_cal_y.center, | |
843 | ctlr->right_stick_cal_y.max, | |
844 | ctlr->right_stick_cal_y.min); | |
845 | ||
846 | return 0; | |
847 | } | |
848 | ||
4ff5b108 DO |
849 | /* |
850 | * These divisors are calculated once rather than for each sample. They are only | |
851 | * dependent on the IMU calibration values. They are used when processing the | |
852 | * IMU input reports. | |
853 | */ | |
854 | static void joycon_calc_imu_cal_divisors(struct joycon_ctlr *ctlr) | |
855 | { | |
856 | int i; | |
857 | ||
858 | for (i = 0; i < 3; i++) { | |
859 | ctlr->imu_cal_accel_divisor[i] = ctlr->accel_cal.scale[i] - | |
860 | ctlr->accel_cal.offset[i]; | |
861 | ctlr->imu_cal_gyro_divisor[i] = ctlr->gyro_cal.scale[i] - | |
862 | ctlr->gyro_cal.offset[i]; | |
863 | } | |
864 | } | |
865 | ||
866 | static const s16 DFLT_ACCEL_OFFSET /*= 0*/; | |
867 | static const s16 DFLT_ACCEL_SCALE = 16384; | |
868 | static const s16 DFLT_GYRO_OFFSET /*= 0*/; | |
869 | static const s16 DFLT_GYRO_SCALE = 13371; | |
870 | static int joycon_request_imu_calibration(struct joycon_ctlr *ctlr) | |
871 | { | |
872 | u16 imu_cal_addr = JC_IMU_CAL_FCT_DATA_ADDR; | |
873 | u8 *raw_cal; | |
874 | int ret; | |
875 | int i; | |
876 | ||
877 | /* check if user calibration exists */ | |
878 | if (!joycon_check_for_cal_magic(ctlr, JC_IMU_CAL_USR_MAGIC_ADDR)) { | |
879 | imu_cal_addr = JC_IMU_CAL_USR_DATA_ADDR; | |
880 | hid_info(ctlr->hdev, "using user cal for IMU\n"); | |
881 | } else { | |
882 | hid_info(ctlr->hdev, "using factory cal for IMU\n"); | |
883 | } | |
884 | ||
885 | /* request IMU calibration data */ | |
886 | hid_dbg(ctlr->hdev, "requesting IMU cal data\n"); | |
887 | ret = joycon_request_spi_flash_read(ctlr, imu_cal_addr, | |
888 | JC_IMU_CAL_DATA_SIZE, &raw_cal); | |
889 | if (ret) { | |
890 | hid_warn(ctlr->hdev, | |
891 | "Failed to read IMU cal, using defaults; ret=%d\n", | |
892 | ret); | |
893 | ||
894 | for (i = 0; i < 3; i++) { | |
895 | ctlr->accel_cal.offset[i] = DFLT_ACCEL_OFFSET; | |
896 | ctlr->accel_cal.scale[i] = DFLT_ACCEL_SCALE; | |
897 | ctlr->gyro_cal.offset[i] = DFLT_GYRO_OFFSET; | |
898 | ctlr->gyro_cal.scale[i] = DFLT_GYRO_SCALE; | |
899 | } | |
900 | joycon_calc_imu_cal_divisors(ctlr); | |
901 | return ret; | |
902 | } | |
903 | ||
904 | /* IMU calibration parsing */ | |
905 | for (i = 0; i < 3; i++) { | |
906 | int j = i * 2; | |
907 | ||
908 | ctlr->accel_cal.offset[i] = get_unaligned_le16(raw_cal + j); | |
909 | ctlr->accel_cal.scale[i] = get_unaligned_le16(raw_cal + j + 6); | |
910 | ctlr->gyro_cal.offset[i] = get_unaligned_le16(raw_cal + j + 12); | |
911 | ctlr->gyro_cal.scale[i] = get_unaligned_le16(raw_cal + j + 18); | |
912 | } | |
913 | ||
914 | joycon_calc_imu_cal_divisors(ctlr); | |
915 | ||
916 | hid_dbg(ctlr->hdev, "IMU calibration:\n" | |
917 | "a_o[0]=%d a_o[1]=%d a_o[2]=%d\n" | |
918 | "a_s[0]=%d a_s[1]=%d a_s[2]=%d\n" | |
919 | "g_o[0]=%d g_o[1]=%d g_o[2]=%d\n" | |
920 | "g_s[0]=%d g_s[1]=%d g_s[2]=%d\n", | |
921 | ctlr->accel_cal.offset[0], | |
922 | ctlr->accel_cal.offset[1], | |
923 | ctlr->accel_cal.offset[2], | |
924 | ctlr->accel_cal.scale[0], | |
925 | ctlr->accel_cal.scale[1], | |
926 | ctlr->accel_cal.scale[2], | |
927 | ctlr->gyro_cal.offset[0], | |
928 | ctlr->gyro_cal.offset[1], | |
929 | ctlr->gyro_cal.offset[2], | |
930 | ctlr->gyro_cal.scale[0], | |
931 | ctlr->gyro_cal.scale[1], | |
932 | ctlr->gyro_cal.scale[2]); | |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
2af16c1f DO |
937 | static int joycon_set_report_mode(struct joycon_ctlr *ctlr) |
938 | { | |
939 | struct joycon_subcmd_request *req; | |
940 | u8 buffer[sizeof(*req) + 1] = { 0 }; | |
941 | ||
942 | req = (struct joycon_subcmd_request *)buffer; | |
943 | req->subcmd_id = JC_SUBCMD_SET_REPORT_MODE; | |
944 | req->data[0] = 0x30; /* standard, full report mode */ | |
945 | ||
946 | hid_dbg(ctlr->hdev, "setting controller report mode\n"); | |
6b5dca2d | 947 | return joycon_send_subcmd(ctlr, req, 1, HZ); |
2af16c1f DO |
948 | } |
949 | ||
c4eae84f DO |
950 | static int joycon_enable_rumble(struct joycon_ctlr *ctlr) |
951 | { | |
952 | struct joycon_subcmd_request *req; | |
953 | u8 buffer[sizeof(*req) + 1] = { 0 }; | |
954 | ||
955 | req = (struct joycon_subcmd_request *)buffer; | |
956 | req->subcmd_id = JC_SUBCMD_ENABLE_VIBRATION; | |
957 | req->data[0] = 0x01; /* note: 0x00 would disable */ | |
958 | ||
959 | hid_dbg(ctlr->hdev, "enabling rumble\n"); | |
6b5dca2d | 960 | return joycon_send_subcmd(ctlr, req, 1, HZ/4); |
c4eae84f DO |
961 | } |
962 | ||
4ff5b108 DO |
963 | static int joycon_enable_imu(struct joycon_ctlr *ctlr) |
964 | { | |
965 | struct joycon_subcmd_request *req; | |
966 | u8 buffer[sizeof(*req) + 1] = { 0 }; | |
967 | ||
968 | req = (struct joycon_subcmd_request *)buffer; | |
969 | req->subcmd_id = JC_SUBCMD_ENABLE_IMU; | |
970 | req->data[0] = 0x01; /* note: 0x00 would disable */ | |
971 | ||
972 | hid_dbg(ctlr->hdev, "enabling IMU\n"); | |
973 | return joycon_send_subcmd(ctlr, req, 1, HZ); | |
974 | } | |
975 | ||
2af16c1f DO |
976 | static s32 joycon_map_stick_val(struct joycon_stick_cal *cal, s32 val) |
977 | { | |
978 | s32 center = cal->center; | |
979 | s32 min = cal->min; | |
980 | s32 max = cal->max; | |
981 | s32 new_val; | |
982 | ||
983 | if (val > center) { | |
984 | new_val = (val - center) * JC_MAX_STICK_MAG; | |
985 | new_val /= (max - center); | |
986 | } else { | |
987 | new_val = (center - val) * -JC_MAX_STICK_MAG; | |
988 | new_val /= (center - min); | |
989 | } | |
990 | new_val = clamp(new_val, (s32)-JC_MAX_STICK_MAG, (s32)JC_MAX_STICK_MAG); | |
991 | return new_val; | |
992 | } | |
993 | ||
4ff5b108 DO |
994 | static void joycon_input_report_parse_imu_data(struct joycon_ctlr *ctlr, |
995 | struct joycon_input_report *rep, | |
996 | struct joycon_imu_data *imu_data) | |
997 | { | |
998 | u8 *raw = rep->imu_raw_bytes; | |
999 | int i; | |
1000 | ||
1001 | for (i = 0; i < 3; i++) { | |
1002 | struct joycon_imu_data *data = &imu_data[i]; | |
1003 | ||
1004 | data->accel_x = get_unaligned_le16(raw + 0); | |
1005 | data->accel_y = get_unaligned_le16(raw + 2); | |
1006 | data->accel_z = get_unaligned_le16(raw + 4); | |
1007 | data->gyro_x = get_unaligned_le16(raw + 6); | |
1008 | data->gyro_y = get_unaligned_le16(raw + 8); | |
1009 | data->gyro_z = get_unaligned_le16(raw + 10); | |
1010 | /* point to next imu sample */ | |
1011 | raw += sizeof(struct joycon_imu_data); | |
1012 | } | |
1013 | } | |
1014 | ||
1015 | static void joycon_parse_imu_report(struct joycon_ctlr *ctlr, | |
1016 | struct joycon_input_report *rep) | |
1017 | { | |
1018 | struct joycon_imu_data imu_data[3] = {0}; /* 3 reports per packet */ | |
1019 | struct input_dev *idev = ctlr->imu_input; | |
1020 | unsigned int msecs = jiffies_to_msecs(jiffies); | |
1021 | unsigned int last_msecs = ctlr->imu_last_pkt_ms; | |
1022 | int i; | |
1023 | int value[6]; | |
1024 | ||
1025 | joycon_input_report_parse_imu_data(ctlr, rep, imu_data); | |
1026 | ||
1027 | /* | |
1028 | * There are complexities surrounding how we determine the timestamps we | |
1029 | * associate with the samples we pass to userspace. The IMU input | |
1030 | * reports do not provide us with a good timestamp. There's a quickly | |
1031 | * incrementing 8-bit counter per input report, but it is not very | |
1032 | * useful for this purpose (it is not entirely clear what rate it | |
1033 | * increments at or if it varies based on packet push rate - more on | |
1034 | * the push rate below...). | |
1035 | * | |
1036 | * The reverse engineering work done on the joy-cons and pro controllers | |
1037 | * by the community seems to indicate the following: | |
1038 | * - The controller samples the IMU every 1.35ms. It then does some of | |
1039 | * its own processing, probably averaging the samples out. | |
1040 | * - Each imu input report contains 3 IMU samples, (usually 5ms apart). | |
1041 | * - In the standard reporting mode (which this driver uses exclusively) | |
1042 | * input reports are pushed from the controller as follows: | |
1043 | * * joy-con (bluetooth): every 15 ms | |
1044 | * * joy-cons (in charging grip via USB): every 15 ms | |
1045 | * * pro controller (USB): every 15 ms | |
1046 | * * pro controller (bluetooth): every 8 ms (this is the wildcard) | |
1047 | * | |
1048 | * Further complicating matters is that some bluetooth stacks are known | |
1049 | * to alter the controller's packet rate by hardcoding the bluetooth | |
1050 | * SSR for the switch controllers (android's stack currently sets the | |
1051 | * SSR to 11ms for both the joy-cons and pro controllers). | |
1052 | * | |
1053 | * In my own testing, I've discovered that my pro controller either | |
1054 | * reports IMU sample batches every 11ms or every 15ms. This rate is | |
1055 | * stable after connecting. It isn't 100% clear what determines this | |
1056 | * rate. Importantly, even when sending every 11ms, none of the samples | |
1057 | * are duplicates. This seems to indicate that the time deltas between | |
1058 | * reported samples can vary based on the input report rate. | |
1059 | * | |
1060 | * The solution employed in this driver is to keep track of the average | |
1061 | * time delta between IMU input reports. In testing, this value has | |
1062 | * proven to be stable, staying at 15ms or 11ms, though other hardware | |
1063 | * configurations and bluetooth stacks could potentially see other rates | |
1064 | * (hopefully this will become more clear as more people use the | |
1065 | * driver). | |
1066 | * | |
1067 | * Keeping track of the average report delta allows us to submit our | |
1068 | * timestamps to userspace based on that. Each report contains 3 | |
1069 | * samples, so the IMU sampling rate should be avg_time_delta/3. We can | |
1070 | * also use this average to detect events where we have dropped a | |
1071 | * packet. The userspace timestamp for the samples will be adjusted | |
1072 | * accordingly to prevent unwanted behvaior. | |
1073 | */ | |
1074 | if (!ctlr->imu_first_packet_received) { | |
1075 | ctlr->imu_timestamp_us = 0; | |
1076 | ctlr->imu_delta_samples_count = 0; | |
1077 | ctlr->imu_delta_samples_sum = 0; | |
1078 | ctlr->imu_avg_delta_ms = JC_IMU_DFLT_AVG_DELTA_MS; | |
1079 | ctlr->imu_first_packet_received = true; | |
1080 | } else { | |
1081 | unsigned int delta = msecs - last_msecs; | |
1082 | unsigned int dropped_pkts; | |
1083 | unsigned int dropped_threshold; | |
1084 | ||
1085 | /* avg imu report delta housekeeping */ | |
1086 | ctlr->imu_delta_samples_sum += delta; | |
1087 | ctlr->imu_delta_samples_count++; | |
1088 | if (ctlr->imu_delta_samples_count >= | |
1089 | JC_IMU_SAMPLES_PER_DELTA_AVG) { | |
1090 | ctlr->imu_avg_delta_ms = ctlr->imu_delta_samples_sum / | |
1091 | ctlr->imu_delta_samples_count; | |
1092 | /* don't ever want divide by zero shenanigans */ | |
1093 | if (ctlr->imu_avg_delta_ms == 0) { | |
1094 | ctlr->imu_avg_delta_ms = 1; | |
1095 | hid_warn(ctlr->hdev, | |
1096 | "calculated avg imu delta of 0\n"); | |
1097 | } | |
1098 | ctlr->imu_delta_samples_count = 0; | |
1099 | ctlr->imu_delta_samples_sum = 0; | |
1100 | } | |
1101 | ||
1102 | /* useful for debugging IMU sample rate */ | |
1103 | hid_dbg(ctlr->hdev, | |
1104 | "imu_report: ms=%u last_ms=%u delta=%u avg_delta=%u\n", | |
1105 | msecs, last_msecs, delta, ctlr->imu_avg_delta_ms); | |
1106 | ||
1107 | /* check if any packets have been dropped */ | |
1108 | dropped_threshold = ctlr->imu_avg_delta_ms * 3 / 2; | |
1109 | dropped_pkts = (delta - min(delta, dropped_threshold)) / | |
1110 | ctlr->imu_avg_delta_ms; | |
1111 | ctlr->imu_timestamp_us += 1000 * ctlr->imu_avg_delta_ms; | |
1112 | if (dropped_pkts > JC_IMU_DROPPED_PKT_WARNING) { | |
1113 | hid_warn(ctlr->hdev, | |
1114 | "compensating for %u dropped IMU reports\n", | |
1115 | dropped_pkts); | |
1116 | hid_warn(ctlr->hdev, | |
1117 | "delta=%u avg_delta=%u\n", | |
1118 | delta, ctlr->imu_avg_delta_ms); | |
1119 | } | |
1120 | } | |
1121 | ctlr->imu_last_pkt_ms = msecs; | |
1122 | ||
1123 | /* Each IMU input report contains three samples */ | |
1124 | for (i = 0; i < 3; i++) { | |
1125 | input_event(idev, EV_MSC, MSC_TIMESTAMP, | |
1126 | ctlr->imu_timestamp_us); | |
1127 | ||
1128 | /* | |
1129 | * These calculations (which use the controller's calibration | |
1130 | * settings to improve the final values) are based on those | |
1131 | * found in the community's reverse-engineering repo (linked at | |
1132 | * top of driver). For hid-nintendo, we make sure that the final | |
1133 | * value given to userspace is always in terms of the axis | |
1134 | * resolution we provided. | |
1135 | * | |
1136 | * Currently only the gyro calculations subtract the calibration | |
1137 | * offsets from the raw value itself. In testing, doing the same | |
1138 | * for the accelerometer raw values decreased accuracy. | |
1139 | * | |
1140 | * Note that the gyro values are multiplied by the | |
1141 | * precision-saving scaling factor to prevent large inaccuracies | |
1142 | * due to truncation of the resolution value which would | |
1143 | * otherwise occur. To prevent overflow (without resorting to 64 | |
1144 | * bit integer math), the mult_frac macro is used. | |
1145 | */ | |
1146 | value[0] = mult_frac((JC_IMU_PREC_RANGE_SCALE * | |
1147 | (imu_data[i].gyro_x - | |
1148 | ctlr->gyro_cal.offset[0])), | |
1149 | ctlr->gyro_cal.scale[0], | |
1150 | ctlr->imu_cal_gyro_divisor[0]); | |
1151 | value[1] = mult_frac((JC_IMU_PREC_RANGE_SCALE * | |
1152 | (imu_data[i].gyro_y - | |
1153 | ctlr->gyro_cal.offset[1])), | |
1154 | ctlr->gyro_cal.scale[1], | |
1155 | ctlr->imu_cal_gyro_divisor[1]); | |
1156 | value[2] = mult_frac((JC_IMU_PREC_RANGE_SCALE * | |
1157 | (imu_data[i].gyro_z - | |
1158 | ctlr->gyro_cal.offset[2])), | |
1159 | ctlr->gyro_cal.scale[2], | |
1160 | ctlr->imu_cal_gyro_divisor[2]); | |
1161 | ||
1162 | value[3] = ((s32)imu_data[i].accel_x * | |
1163 | ctlr->accel_cal.scale[0]) / | |
1164 | ctlr->imu_cal_accel_divisor[0]; | |
1165 | value[4] = ((s32)imu_data[i].accel_y * | |
1166 | ctlr->accel_cal.scale[1]) / | |
1167 | ctlr->imu_cal_accel_divisor[1]; | |
1168 | value[5] = ((s32)imu_data[i].accel_z * | |
1169 | ctlr->accel_cal.scale[2]) / | |
1170 | ctlr->imu_cal_accel_divisor[2]; | |
1171 | ||
1172 | hid_dbg(ctlr->hdev, "raw_gyro: g_x=%d g_y=%d g_z=%d\n", | |
1173 | imu_data[i].gyro_x, imu_data[i].gyro_y, | |
1174 | imu_data[i].gyro_z); | |
1175 | hid_dbg(ctlr->hdev, "raw_accel: a_x=%d a_y=%d a_z=%d\n", | |
1176 | imu_data[i].accel_x, imu_data[i].accel_y, | |
1177 | imu_data[i].accel_z); | |
1178 | ||
1179 | /* | |
1180 | * The right joy-con has 2 axes negated, Y and Z. This is due to | |
1181 | * the orientation of the IMU in the controller. We negate those | |
1182 | * axes' values in order to be consistent with the left joy-con | |
1183 | * and the pro controller: | |
1184 | * X: positive is pointing toward the triggers | |
1185 | * Y: positive is pointing to the left | |
1186 | * Z: positive is pointing up (out of the buttons/sticks) | |
1187 | * The axes follow the right-hand rule. | |
1188 | */ | |
1189 | if (jc_type_is_joycon(ctlr) && jc_type_has_right(ctlr)) { | |
1190 | int j; | |
1191 | ||
1192 | /* negate all but x axis */ | |
1193 | for (j = 1; j < 6; ++j) { | |
1194 | if (j == 3) | |
1195 | continue; | |
1196 | value[j] *= -1; | |
1197 | } | |
1198 | } | |
1199 | ||
1200 | input_report_abs(idev, ABS_RX, value[0]); | |
1201 | input_report_abs(idev, ABS_RY, value[1]); | |
1202 | input_report_abs(idev, ABS_RZ, value[2]); | |
1203 | input_report_abs(idev, ABS_X, value[3]); | |
1204 | input_report_abs(idev, ABS_Y, value[4]); | |
1205 | input_report_abs(idev, ABS_Z, value[5]); | |
1206 | input_sync(idev); | |
1207 | /* convert to micros and divide by 3 (3 samples per report). */ | |
1208 | ctlr->imu_timestamp_us += ctlr->imu_avg_delta_ms * 1000 / 3; | |
1209 | } | |
1210 | } | |
1211 | ||
2af16c1f DO |
1212 | static void joycon_parse_report(struct joycon_ctlr *ctlr, |
1213 | struct joycon_input_report *rep) | |
1214 | { | |
1215 | struct input_dev *dev = ctlr->input; | |
08ebba5c DO |
1216 | unsigned long flags; |
1217 | u8 tmp; | |
2af16c1f | 1218 | u32 btns; |
c4eae84f DO |
1219 | unsigned long msecs = jiffies_to_msecs(jiffies); |
1220 | ||
1221 | spin_lock_irqsave(&ctlr->lock, flags); | |
1222 | if (IS_ENABLED(CONFIG_NINTENDO_FF) && rep->vibrator_report && | |
dad74e18 DO |
1223 | (msecs - ctlr->rumble_msecs) >= JC_RUMBLE_PERIOD_MS && |
1224 | (ctlr->rumble_queue_head != ctlr->rumble_queue_tail || | |
1225 | ctlr->rumble_zero_countdown > 0)) { | |
1226 | /* | |
1227 | * When this value reaches 0, we know we've sent multiple | |
1228 | * packets to the controller instructing it to disable rumble. | |
1229 | * We can safely stop sending periodic rumble packets until the | |
1230 | * next ff effect. | |
1231 | */ | |
1232 | if (ctlr->rumble_zero_countdown > 0) | |
1233 | ctlr->rumble_zero_countdown--; | |
c4eae84f | 1234 | queue_work(ctlr->rumble_queue, &ctlr->rumble_worker); |
dad74e18 | 1235 | } |
2af16c1f | 1236 | |
08ebba5c DO |
1237 | /* Parse the battery status */ |
1238 | tmp = rep->bat_con; | |
08ebba5c DO |
1239 | ctlr->host_powered = tmp & BIT(0); |
1240 | ctlr->battery_charging = tmp & BIT(4); | |
1241 | tmp = tmp >> 5; | |
1242 | switch (tmp) { | |
1243 | case 0: /* empty */ | |
1244 | ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; | |
1245 | break; | |
1246 | case 1: /* low */ | |
1247 | ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_LOW; | |
1248 | break; | |
1249 | case 2: /* medium */ | |
1250 | ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; | |
1251 | break; | |
1252 | case 3: /* high */ | |
1253 | ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_HIGH; | |
1254 | break; | |
1255 | case 4: /* full */ | |
1256 | ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_FULL; | |
1257 | break; | |
1258 | default: | |
1259 | ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN; | |
1260 | hid_warn(ctlr->hdev, "Invalid battery status\n"); | |
1261 | break; | |
1262 | } | |
1263 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
1264 | ||
1265 | /* Parse the buttons and sticks */ | |
2af16c1f DO |
1266 | btns = hid_field_extract(ctlr->hdev, rep->button_status, 0, 24); |
1267 | ||
294a8287 | 1268 | if (jc_type_has_left(ctlr)) { |
2af16c1f DO |
1269 | u16 raw_x; |
1270 | u16 raw_y; | |
1271 | s32 x; | |
1272 | s32 y; | |
1273 | ||
1274 | /* get raw stick values */ | |
1275 | raw_x = hid_field_extract(ctlr->hdev, rep->left_stick, 0, 12); | |
1276 | raw_y = hid_field_extract(ctlr->hdev, | |
1277 | rep->left_stick + 1, 4, 12); | |
1278 | /* map the stick values */ | |
1279 | x = joycon_map_stick_val(&ctlr->left_stick_cal_x, raw_x); | |
1280 | y = -joycon_map_stick_val(&ctlr->left_stick_cal_y, raw_y); | |
1281 | /* report sticks */ | |
1282 | input_report_abs(dev, ABS_X, x); | |
1283 | input_report_abs(dev, ABS_Y, y); | |
1284 | ||
1285 | /* report buttons */ | |
1286 | input_report_key(dev, BTN_TL, btns & JC_BTN_L); | |
1287 | input_report_key(dev, BTN_TL2, btns & JC_BTN_ZL); | |
1288 | input_report_key(dev, BTN_SELECT, btns & JC_BTN_MINUS); | |
1289 | input_report_key(dev, BTN_THUMBL, btns & JC_BTN_LSTICK); | |
1290 | input_report_key(dev, BTN_Z, btns & JC_BTN_CAP); | |
1291 | ||
294a8287 | 1292 | if (jc_type_is_joycon(ctlr)) { |
2af16c1f DO |
1293 | /* Report the S buttons as the non-existent triggers */ |
1294 | input_report_key(dev, BTN_TR, btns & JC_BTN_SL_L); | |
1295 | input_report_key(dev, BTN_TR2, btns & JC_BTN_SR_L); | |
1296 | ||
1297 | /* Report d-pad as digital buttons for the joy-cons */ | |
1298 | input_report_key(dev, BTN_DPAD_DOWN, | |
1299 | btns & JC_BTN_DOWN); | |
1300 | input_report_key(dev, BTN_DPAD_UP, btns & JC_BTN_UP); | |
1301 | input_report_key(dev, BTN_DPAD_RIGHT, | |
1302 | btns & JC_BTN_RIGHT); | |
1303 | input_report_key(dev, BTN_DPAD_LEFT, | |
1304 | btns & JC_BTN_LEFT); | |
1305 | } else { | |
1306 | int hatx = 0; | |
1307 | int haty = 0; | |
1308 | ||
1309 | /* d-pad x */ | |
1310 | if (btns & JC_BTN_LEFT) | |
1311 | hatx = -1; | |
1312 | else if (btns & JC_BTN_RIGHT) | |
1313 | hatx = 1; | |
1314 | input_report_abs(dev, ABS_HAT0X, hatx); | |
1315 | ||
1316 | /* d-pad y */ | |
1317 | if (btns & JC_BTN_UP) | |
1318 | haty = -1; | |
1319 | else if (btns & JC_BTN_DOWN) | |
1320 | haty = 1; | |
1321 | input_report_abs(dev, ABS_HAT0Y, haty); | |
1322 | } | |
1323 | } | |
294a8287 | 1324 | if (jc_type_has_right(ctlr)) { |
2af16c1f DO |
1325 | u16 raw_x; |
1326 | u16 raw_y; | |
1327 | s32 x; | |
1328 | s32 y; | |
1329 | ||
1330 | /* get raw stick values */ | |
1331 | raw_x = hid_field_extract(ctlr->hdev, rep->right_stick, 0, 12); | |
1332 | raw_y = hid_field_extract(ctlr->hdev, | |
1333 | rep->right_stick + 1, 4, 12); | |
1334 | /* map stick values */ | |
1335 | x = joycon_map_stick_val(&ctlr->right_stick_cal_x, raw_x); | |
1336 | y = -joycon_map_stick_val(&ctlr->right_stick_cal_y, raw_y); | |
1337 | /* report sticks */ | |
1338 | input_report_abs(dev, ABS_RX, x); | |
1339 | input_report_abs(dev, ABS_RY, y); | |
1340 | ||
1341 | /* report buttons */ | |
1342 | input_report_key(dev, BTN_TR, btns & JC_BTN_R); | |
1343 | input_report_key(dev, BTN_TR2, btns & JC_BTN_ZR); | |
294a8287 | 1344 | if (jc_type_is_joycon(ctlr)) { |
2af16c1f DO |
1345 | /* Report the S buttons as the non-existent triggers */ |
1346 | input_report_key(dev, BTN_TL, btns & JC_BTN_SL_R); | |
1347 | input_report_key(dev, BTN_TL2, btns & JC_BTN_SR_R); | |
1348 | } | |
1349 | input_report_key(dev, BTN_START, btns & JC_BTN_PLUS); | |
1350 | input_report_key(dev, BTN_THUMBR, btns & JC_BTN_RSTICK); | |
1351 | input_report_key(dev, BTN_MODE, btns & JC_BTN_HOME); | |
1352 | input_report_key(dev, BTN_WEST, btns & JC_BTN_Y); | |
1353 | input_report_key(dev, BTN_NORTH, btns & JC_BTN_X); | |
1354 | input_report_key(dev, BTN_EAST, btns & JC_BTN_A); | |
1355 | input_report_key(dev, BTN_SOUTH, btns & JC_BTN_B); | |
1356 | } | |
1357 | ||
1358 | input_sync(dev); | |
479da173 DO |
1359 | |
1360 | /* | |
1361 | * Immediately after receiving a report is the most reliable time to | |
1362 | * send a subcommand to the controller. Wake any subcommand senders | |
1363 | * waiting for a report. | |
1364 | */ | |
1365 | if (unlikely(mutex_is_locked(&ctlr->output_mutex))) { | |
1366 | spin_lock_irqsave(&ctlr->lock, flags); | |
1367 | ctlr->received_input_report = true; | |
1368 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
1369 | wake_up(&ctlr->wait); | |
1370 | } | |
4ff5b108 DO |
1371 | |
1372 | /* parse IMU data if present */ | |
1373 | if (rep->id == JC_INPUT_IMU_DATA) | |
1374 | joycon_parse_imu_report(ctlr, rep); | |
2af16c1f DO |
1375 | } |
1376 | ||
4c048f6b DO |
1377 | static int joycon_send_rumble_data(struct joycon_ctlr *ctlr) |
1378 | { | |
1379 | int ret; | |
1380 | unsigned long flags; | |
1381 | struct joycon_rumble_output rumble_output = { 0 }; | |
1382 | ||
1383 | spin_lock_irqsave(&ctlr->lock, flags); | |
1384 | /* | |
1385 | * If the controller has been removed, just return ENODEV so the LED | |
1386 | * subsystem doesn't print invalid errors on removal. | |
1387 | */ | |
1388 | if (ctlr->ctlr_state == JOYCON_CTLR_STATE_REMOVED) { | |
1389 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
1390 | return -ENODEV; | |
1391 | } | |
1392 | memcpy(rumble_output.rumble_data, | |
1393 | ctlr->rumble_data[ctlr->rumble_queue_tail], | |
1394 | JC_RUMBLE_DATA_SIZE); | |
1395 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
1396 | ||
1397 | rumble_output.output_id = JC_OUTPUT_RUMBLE_ONLY; | |
1398 | rumble_output.packet_num = ctlr->subcmd_num; | |
1399 | if (++ctlr->subcmd_num > 0xF) | |
1400 | ctlr->subcmd_num = 0; | |
1401 | ||
e93363f7 DO |
1402 | joycon_enforce_subcmd_rate(ctlr); |
1403 | ||
4c048f6b DO |
1404 | ret = __joycon_hid_send(ctlr->hdev, (u8 *)&rumble_output, |
1405 | sizeof(rumble_output)); | |
1406 | return ret; | |
1407 | } | |
1408 | ||
c4eae84f DO |
1409 | static void joycon_rumble_worker(struct work_struct *work) |
1410 | { | |
1411 | struct joycon_ctlr *ctlr = container_of(work, struct joycon_ctlr, | |
1412 | rumble_worker); | |
1413 | unsigned long flags; | |
1414 | bool again = true; | |
1415 | int ret; | |
1416 | ||
1417 | while (again) { | |
1418 | mutex_lock(&ctlr->output_mutex); | |
4c048f6b | 1419 | ret = joycon_send_rumble_data(ctlr); |
c4eae84f | 1420 | mutex_unlock(&ctlr->output_mutex); |
c4eae84f | 1421 | |
012bd52c | 1422 | /* -ENODEV means the controller was just unplugged */ |
c4eae84f | 1423 | spin_lock_irqsave(&ctlr->lock, flags); |
012bd52c DO |
1424 | if (ret < 0 && ret != -ENODEV && |
1425 | ctlr->ctlr_state != JOYCON_CTLR_STATE_REMOVED) | |
1426 | hid_warn(ctlr->hdev, "Failed to set rumble; e=%d", ret); | |
1427 | ||
c4eae84f DO |
1428 | ctlr->rumble_msecs = jiffies_to_msecs(jiffies); |
1429 | if (ctlr->rumble_queue_tail != ctlr->rumble_queue_head) { | |
1430 | if (++ctlr->rumble_queue_tail >= JC_RUMBLE_QUEUE_SIZE) | |
1431 | ctlr->rumble_queue_tail = 0; | |
1432 | } else { | |
1433 | again = false; | |
1434 | } | |
1435 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
1436 | } | |
1437 | } | |
1438 | ||
1439 | #if IS_ENABLED(CONFIG_NINTENDO_FF) | |
1440 | static struct joycon_rumble_freq_data joycon_find_rumble_freq(u16 freq) | |
1441 | { | |
1442 | const size_t length = ARRAY_SIZE(joycon_rumble_frequencies); | |
1443 | const struct joycon_rumble_freq_data *data = joycon_rumble_frequencies; | |
1444 | int i = 0; | |
1445 | ||
1446 | if (freq > data[0].freq) { | |
1447 | for (i = 1; i < length - 1; i++) { | |
1448 | if (freq > data[i - 1].freq && freq <= data[i].freq) | |
1449 | break; | |
1450 | } | |
1451 | } | |
1452 | ||
1453 | return data[i]; | |
1454 | } | |
1455 | ||
1456 | static struct joycon_rumble_amp_data joycon_find_rumble_amp(u16 amp) | |
1457 | { | |
1458 | const size_t length = ARRAY_SIZE(joycon_rumble_amplitudes); | |
1459 | const struct joycon_rumble_amp_data *data = joycon_rumble_amplitudes; | |
1460 | int i = 0; | |
1461 | ||
1462 | if (amp > data[0].amp) { | |
1463 | for (i = 1; i < length - 1; i++) { | |
1464 | if (amp > data[i - 1].amp && amp <= data[i].amp) | |
1465 | break; | |
1466 | } | |
1467 | } | |
1468 | ||
1469 | return data[i]; | |
1470 | } | |
1471 | ||
1472 | static void joycon_encode_rumble(u8 *data, u16 freq_low, u16 freq_high, u16 amp) | |
1473 | { | |
1474 | struct joycon_rumble_freq_data freq_data_low; | |
1475 | struct joycon_rumble_freq_data freq_data_high; | |
1476 | struct joycon_rumble_amp_data amp_data; | |
1477 | ||
1478 | freq_data_low = joycon_find_rumble_freq(freq_low); | |
1479 | freq_data_high = joycon_find_rumble_freq(freq_high); | |
1480 | amp_data = joycon_find_rumble_amp(amp); | |
1481 | ||
1482 | data[0] = (freq_data_high.high >> 8) & 0xFF; | |
1483 | data[1] = (freq_data_high.high & 0xFF) + amp_data.high; | |
1484 | data[2] = freq_data_low.low + ((amp_data.low >> 8) & 0xFF); | |
1485 | data[3] = amp_data.low & 0xFF; | |
1486 | } | |
1487 | ||
1488 | static const u16 JOYCON_MAX_RUMBLE_HIGH_FREQ = 1253; | |
1489 | static const u16 JOYCON_MIN_RUMBLE_HIGH_FREQ = 82; | |
1490 | static const u16 JOYCON_MAX_RUMBLE_LOW_FREQ = 626; | |
1491 | static const u16 JOYCON_MIN_RUMBLE_LOW_FREQ = 41; | |
1492 | ||
1493 | static void joycon_clamp_rumble_freqs(struct joycon_ctlr *ctlr) | |
1494 | { | |
1495 | unsigned long flags; | |
1496 | ||
1497 | spin_lock_irqsave(&ctlr->lock, flags); | |
1498 | ctlr->rumble_ll_freq = clamp(ctlr->rumble_ll_freq, | |
1499 | JOYCON_MIN_RUMBLE_LOW_FREQ, | |
1500 | JOYCON_MAX_RUMBLE_LOW_FREQ); | |
1501 | ctlr->rumble_lh_freq = clamp(ctlr->rumble_lh_freq, | |
1502 | JOYCON_MIN_RUMBLE_HIGH_FREQ, | |
1503 | JOYCON_MAX_RUMBLE_HIGH_FREQ); | |
1504 | ctlr->rumble_rl_freq = clamp(ctlr->rumble_rl_freq, | |
1505 | JOYCON_MIN_RUMBLE_LOW_FREQ, | |
1506 | JOYCON_MAX_RUMBLE_LOW_FREQ); | |
1507 | ctlr->rumble_rh_freq = clamp(ctlr->rumble_rh_freq, | |
1508 | JOYCON_MIN_RUMBLE_HIGH_FREQ, | |
1509 | JOYCON_MAX_RUMBLE_HIGH_FREQ); | |
1510 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
1511 | } | |
1512 | ||
1513 | static int joycon_set_rumble(struct joycon_ctlr *ctlr, u16 amp_r, u16 amp_l, | |
1514 | bool schedule_now) | |
1515 | { | |
1516 | u8 data[JC_RUMBLE_DATA_SIZE]; | |
1517 | u16 amp; | |
1518 | u16 freq_r_low; | |
1519 | u16 freq_r_high; | |
1520 | u16 freq_l_low; | |
1521 | u16 freq_l_high; | |
1522 | unsigned long flags; | |
1523 | ||
1524 | spin_lock_irqsave(&ctlr->lock, flags); | |
1525 | freq_r_low = ctlr->rumble_rl_freq; | |
1526 | freq_r_high = ctlr->rumble_rh_freq; | |
1527 | freq_l_low = ctlr->rumble_ll_freq; | |
1528 | freq_l_high = ctlr->rumble_lh_freq; | |
dad74e18 DO |
1529 | /* limit number of silent rumble packets to reduce traffic */ |
1530 | if (amp_l != 0 || amp_r != 0) | |
1531 | ctlr->rumble_zero_countdown = JC_RUMBLE_ZERO_AMP_PKT_CNT; | |
c4eae84f DO |
1532 | spin_unlock_irqrestore(&ctlr->lock, flags); |
1533 | ||
1534 | /* right joy-con */ | |
1535 | amp = amp_r * (u32)joycon_max_rumble_amp / 65535; | |
1536 | joycon_encode_rumble(data + 4, freq_r_low, freq_r_high, amp); | |
1537 | ||
1538 | /* left joy-con */ | |
1539 | amp = amp_l * (u32)joycon_max_rumble_amp / 65535; | |
1540 | joycon_encode_rumble(data, freq_l_low, freq_l_high, amp); | |
1541 | ||
1542 | spin_lock_irqsave(&ctlr->lock, flags); | |
1543 | if (++ctlr->rumble_queue_head >= JC_RUMBLE_QUEUE_SIZE) | |
1544 | ctlr->rumble_queue_head = 0; | |
1545 | memcpy(ctlr->rumble_data[ctlr->rumble_queue_head], data, | |
1546 | JC_RUMBLE_DATA_SIZE); | |
1547 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
1548 | ||
1549 | /* don't wait for the periodic send (reduces latency) */ | |
1550 | if (schedule_now) | |
1551 | queue_work(ctlr->rumble_queue, &ctlr->rumble_worker); | |
1552 | ||
1553 | return 0; | |
1554 | } | |
1555 | ||
1556 | static int joycon_play_effect(struct input_dev *dev, void *data, | |
1557 | struct ff_effect *effect) | |
1558 | { | |
1559 | struct joycon_ctlr *ctlr = input_get_drvdata(dev); | |
1560 | ||
1561 | if (effect->type != FF_RUMBLE) | |
1562 | return 0; | |
1563 | ||
1564 | return joycon_set_rumble(ctlr, | |
1565 | effect->u.rumble.weak_magnitude, | |
1566 | effect->u.rumble.strong_magnitude, | |
1567 | true); | |
1568 | } | |
1569 | #endif /* IS_ENABLED(CONFIG_NINTENDO_FF) */ | |
2af16c1f DO |
1570 | |
1571 | static const unsigned int joycon_button_inputs_l[] = { | |
1572 | BTN_SELECT, BTN_Z, BTN_THUMBL, | |
1573 | BTN_TL, BTN_TL2, | |
1574 | 0 /* 0 signals end of array */ | |
1575 | }; | |
1576 | ||
1577 | static const unsigned int joycon_button_inputs_r[] = { | |
1578 | BTN_START, BTN_MODE, BTN_THUMBR, | |
1579 | BTN_SOUTH, BTN_EAST, BTN_NORTH, BTN_WEST, | |
1580 | BTN_TR, BTN_TR2, | |
1581 | 0 /* 0 signals end of array */ | |
1582 | }; | |
1583 | ||
1584 | /* We report joy-con d-pad inputs as buttons and pro controller as a hat. */ | |
1585 | static const unsigned int joycon_dpad_inputs_jc[] = { | |
1586 | BTN_DPAD_UP, BTN_DPAD_DOWN, BTN_DPAD_LEFT, BTN_DPAD_RIGHT, | |
1587 | }; | |
1588 | ||
2af16c1f DO |
1589 | static int joycon_input_create(struct joycon_ctlr *ctlr) |
1590 | { | |
1591 | struct hid_device *hdev; | |
2af16c1f | 1592 | const char *name; |
4ff5b108 | 1593 | const char *imu_name; |
2af16c1f DO |
1594 | int ret; |
1595 | int i; | |
1596 | ||
1597 | hdev = ctlr->hdev; | |
1598 | ||
1599 | switch (hdev->product) { | |
1600 | case USB_DEVICE_ID_NINTENDO_PROCON: | |
1601 | name = "Nintendo Switch Pro Controller"; | |
4ff5b108 | 1602 | imu_name = "Nintendo Switch Pro Controller IMU"; |
2af16c1f | 1603 | break; |
294a8287 | 1604 | case USB_DEVICE_ID_NINTENDO_CHRGGRIP: |
4ff5b108 | 1605 | if (jc_type_has_left(ctlr)) { |
294a8287 | 1606 | name = "Nintendo Switch Left Joy-Con (Grip)"; |
4ff5b108 DO |
1607 | imu_name = "Nintendo Switch Left Joy-Con IMU (Grip)"; |
1608 | } else { | |
294a8287 | 1609 | name = "Nintendo Switch Right Joy-Con (Grip)"; |
4ff5b108 DO |
1610 | imu_name = "Nintendo Switch Right Joy-Con IMU (Grip)"; |
1611 | } | |
294a8287 | 1612 | break; |
2af16c1f DO |
1613 | case USB_DEVICE_ID_NINTENDO_JOYCONL: |
1614 | name = "Nintendo Switch Left Joy-Con"; | |
4ff5b108 | 1615 | imu_name = "Nintendo Switch Left Joy-Con IMU"; |
2af16c1f DO |
1616 | break; |
1617 | case USB_DEVICE_ID_NINTENDO_JOYCONR: | |
1618 | name = "Nintendo Switch Right Joy-Con"; | |
4ff5b108 | 1619 | imu_name = "Nintendo Switch Right Joy-Con IMU"; |
2af16c1f DO |
1620 | break; |
1621 | default: /* Should be impossible */ | |
1622 | hid_err(hdev, "Invalid hid product\n"); | |
1623 | return -EINVAL; | |
1624 | } | |
1625 | ||
1626 | ctlr->input = devm_input_allocate_device(&hdev->dev); | |
1627 | if (!ctlr->input) | |
1628 | return -ENOMEM; | |
1629 | ctlr->input->id.bustype = hdev->bus; | |
1630 | ctlr->input->id.vendor = hdev->vendor; | |
1631 | ctlr->input->id.product = hdev->product; | |
1632 | ctlr->input->id.version = hdev->version; | |
14252473 | 1633 | ctlr->input->uniq = ctlr->mac_addr_str; |
2af16c1f DO |
1634 | ctlr->input->name = name; |
1635 | input_set_drvdata(ctlr->input, ctlr); | |
1636 | ||
2af16c1f | 1637 | /* set up sticks and buttons */ |
294a8287 | 1638 | if (jc_type_has_left(ctlr)) { |
2af16c1f DO |
1639 | input_set_abs_params(ctlr->input, ABS_X, |
1640 | -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG, | |
1641 | JC_STICK_FUZZ, JC_STICK_FLAT); | |
1642 | input_set_abs_params(ctlr->input, ABS_Y, | |
1643 | -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG, | |
1644 | JC_STICK_FUZZ, JC_STICK_FLAT); | |
1645 | ||
1646 | for (i = 0; joycon_button_inputs_l[i] > 0; i++) | |
1647 | input_set_capability(ctlr->input, EV_KEY, | |
1648 | joycon_button_inputs_l[i]); | |
1649 | ||
1650 | /* configure d-pad differently for joy-con vs pro controller */ | |
1651 | if (hdev->product != USB_DEVICE_ID_NINTENDO_PROCON) { | |
1652 | for (i = 0; joycon_dpad_inputs_jc[i] > 0; i++) | |
1653 | input_set_capability(ctlr->input, EV_KEY, | |
1654 | joycon_dpad_inputs_jc[i]); | |
1655 | } else { | |
1656 | input_set_abs_params(ctlr->input, ABS_HAT0X, | |
1657 | -JC_MAX_DPAD_MAG, JC_MAX_DPAD_MAG, | |
1658 | JC_DPAD_FUZZ, JC_DPAD_FLAT); | |
1659 | input_set_abs_params(ctlr->input, ABS_HAT0Y, | |
1660 | -JC_MAX_DPAD_MAG, JC_MAX_DPAD_MAG, | |
1661 | JC_DPAD_FUZZ, JC_DPAD_FLAT); | |
1662 | } | |
1663 | } | |
294a8287 | 1664 | if (jc_type_has_right(ctlr)) { |
2af16c1f DO |
1665 | input_set_abs_params(ctlr->input, ABS_RX, |
1666 | -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG, | |
1667 | JC_STICK_FUZZ, JC_STICK_FLAT); | |
1668 | input_set_abs_params(ctlr->input, ABS_RY, | |
1669 | -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG, | |
1670 | JC_STICK_FUZZ, JC_STICK_FLAT); | |
1671 | ||
1672 | for (i = 0; joycon_button_inputs_r[i] > 0; i++) | |
1673 | input_set_capability(ctlr->input, EV_KEY, | |
1674 | joycon_button_inputs_r[i]); | |
1675 | } | |
1676 | ||
1677 | /* Let's report joy-con S triggers separately */ | |
1678 | if (hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONL) { | |
1679 | input_set_capability(ctlr->input, EV_KEY, BTN_TR); | |
1680 | input_set_capability(ctlr->input, EV_KEY, BTN_TR2); | |
1681 | } else if (hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONR) { | |
1682 | input_set_capability(ctlr->input, EV_KEY, BTN_TL); | |
1683 | input_set_capability(ctlr->input, EV_KEY, BTN_TL2); | |
1684 | } | |
1685 | ||
c4eae84f DO |
1686 | #if IS_ENABLED(CONFIG_NINTENDO_FF) |
1687 | /* set up rumble */ | |
1688 | input_set_capability(ctlr->input, EV_FF, FF_RUMBLE); | |
1689 | input_ff_create_memless(ctlr->input, NULL, joycon_play_effect); | |
1690 | ctlr->rumble_ll_freq = JC_RUMBLE_DFLT_LOW_FREQ; | |
1691 | ctlr->rumble_lh_freq = JC_RUMBLE_DFLT_HIGH_FREQ; | |
1692 | ctlr->rumble_rl_freq = JC_RUMBLE_DFLT_LOW_FREQ; | |
1693 | ctlr->rumble_rh_freq = JC_RUMBLE_DFLT_HIGH_FREQ; | |
1694 | joycon_clamp_rumble_freqs(ctlr); | |
1695 | joycon_set_rumble(ctlr, 0, 0, false); | |
1696 | ctlr->rumble_msecs = jiffies_to_msecs(jiffies); | |
1697 | #endif | |
1698 | ||
2af16c1f DO |
1699 | ret = input_register_device(ctlr->input); |
1700 | if (ret) | |
1701 | return ret; | |
1702 | ||
4ff5b108 DO |
1703 | /* configure the imu input device */ |
1704 | ctlr->imu_input = devm_input_allocate_device(&hdev->dev); | |
1705 | if (!ctlr->imu_input) | |
1706 | return -ENOMEM; | |
1707 | ||
1708 | ctlr->imu_input->id.bustype = hdev->bus; | |
1709 | ctlr->imu_input->id.vendor = hdev->vendor; | |
1710 | ctlr->imu_input->id.product = hdev->product; | |
1711 | ctlr->imu_input->id.version = hdev->version; | |
1712 | ctlr->imu_input->uniq = ctlr->mac_addr_str; | |
1713 | ctlr->imu_input->name = imu_name; | |
1714 | input_set_drvdata(ctlr->imu_input, ctlr); | |
1715 | ||
1716 | /* configure imu axes */ | |
1717 | input_set_abs_params(ctlr->imu_input, ABS_X, | |
1718 | -JC_IMU_MAX_ACCEL_MAG, JC_IMU_MAX_ACCEL_MAG, | |
1719 | JC_IMU_ACCEL_FUZZ, JC_IMU_ACCEL_FLAT); | |
1720 | input_set_abs_params(ctlr->imu_input, ABS_Y, | |
1721 | -JC_IMU_MAX_ACCEL_MAG, JC_IMU_MAX_ACCEL_MAG, | |
1722 | JC_IMU_ACCEL_FUZZ, JC_IMU_ACCEL_FLAT); | |
1723 | input_set_abs_params(ctlr->imu_input, ABS_Z, | |
1724 | -JC_IMU_MAX_ACCEL_MAG, JC_IMU_MAX_ACCEL_MAG, | |
1725 | JC_IMU_ACCEL_FUZZ, JC_IMU_ACCEL_FLAT); | |
1726 | input_abs_set_res(ctlr->imu_input, ABS_X, JC_IMU_ACCEL_RES_PER_G); | |
1727 | input_abs_set_res(ctlr->imu_input, ABS_Y, JC_IMU_ACCEL_RES_PER_G); | |
1728 | input_abs_set_res(ctlr->imu_input, ABS_Z, JC_IMU_ACCEL_RES_PER_G); | |
1729 | ||
1730 | input_set_abs_params(ctlr->imu_input, ABS_RX, | |
1731 | -JC_IMU_MAX_GYRO_MAG, JC_IMU_MAX_GYRO_MAG, | |
1732 | JC_IMU_GYRO_FUZZ, JC_IMU_GYRO_FLAT); | |
1733 | input_set_abs_params(ctlr->imu_input, ABS_RY, | |
1734 | -JC_IMU_MAX_GYRO_MAG, JC_IMU_MAX_GYRO_MAG, | |
1735 | JC_IMU_GYRO_FUZZ, JC_IMU_GYRO_FLAT); | |
1736 | input_set_abs_params(ctlr->imu_input, ABS_RZ, | |
1737 | -JC_IMU_MAX_GYRO_MAG, JC_IMU_MAX_GYRO_MAG, | |
1738 | JC_IMU_GYRO_FUZZ, JC_IMU_GYRO_FLAT); | |
1739 | ||
1740 | input_abs_set_res(ctlr->imu_input, ABS_RX, JC_IMU_GYRO_RES_PER_DPS); | |
1741 | input_abs_set_res(ctlr->imu_input, ABS_RY, JC_IMU_GYRO_RES_PER_DPS); | |
1742 | input_abs_set_res(ctlr->imu_input, ABS_RZ, JC_IMU_GYRO_RES_PER_DPS); | |
1743 | ||
1744 | __set_bit(EV_MSC, ctlr->imu_input->evbit); | |
1745 | __set_bit(MSC_TIMESTAMP, ctlr->imu_input->mscbit); | |
1746 | __set_bit(INPUT_PROP_ACCELEROMETER, ctlr->imu_input->propbit); | |
1747 | ||
1748 | ret = input_register_device(ctlr->imu_input); | |
1749 | if (ret) | |
1750 | return ret; | |
1751 | ||
c5e62676 DO |
1752 | return 0; |
1753 | } | |
1754 | ||
1755 | static int joycon_player_led_brightness_set(struct led_classdev *led, | |
1756 | enum led_brightness brightness) | |
1757 | { | |
1758 | struct device *dev = led->dev->parent; | |
1759 | struct hid_device *hdev = to_hid_device(dev); | |
1760 | struct joycon_ctlr *ctlr; | |
1761 | int val = 0; | |
1762 | int i; | |
1763 | int ret; | |
1764 | int num; | |
1765 | ||
1766 | ctlr = hid_get_drvdata(hdev); | |
1767 | if (!ctlr) { | |
1768 | hid_err(hdev, "No controller data\n"); | |
1769 | return -ENODEV; | |
1770 | } | |
1771 | ||
1772 | /* determine which player led this is */ | |
1773 | for (num = 0; num < JC_NUM_LEDS; num++) { | |
1774 | if (&ctlr->leds[num] == led) | |
1775 | break; | |
1776 | } | |
1777 | if (num >= JC_NUM_LEDS) | |
1778 | return -EINVAL; | |
1779 | ||
1780 | mutex_lock(&ctlr->output_mutex); | |
1781 | for (i = 0; i < JC_NUM_LEDS; i++) { | |
1782 | if (i == num) | |
1783 | val |= brightness << i; | |
1784 | else | |
1785 | val |= ctlr->leds[i].brightness << i; | |
1786 | } | |
1787 | ret = joycon_set_player_leds(ctlr, 0, val); | |
1788 | mutex_unlock(&ctlr->output_mutex); | |
1789 | ||
1790 | return ret; | |
1791 | } | |
1792 | ||
697e5c7a DO |
1793 | static int joycon_home_led_brightness_set(struct led_classdev *led, |
1794 | enum led_brightness brightness) | |
1795 | { | |
1796 | struct device *dev = led->dev->parent; | |
1797 | struct hid_device *hdev = to_hid_device(dev); | |
1798 | struct joycon_ctlr *ctlr; | |
1799 | struct joycon_subcmd_request *req; | |
1800 | u8 buffer[sizeof(*req) + 5] = { 0 }; | |
1801 | u8 *data; | |
1802 | int ret; | |
1803 | ||
1804 | ctlr = hid_get_drvdata(hdev); | |
1805 | if (!ctlr) { | |
1806 | hid_err(hdev, "No controller data\n"); | |
1807 | return -ENODEV; | |
1808 | } | |
1809 | ||
1810 | req = (struct joycon_subcmd_request *)buffer; | |
1811 | req->subcmd_id = JC_SUBCMD_SET_HOME_LIGHT; | |
1812 | data = req->data; | |
1813 | data[0] = 0x01; | |
1814 | data[1] = brightness << 4; | |
1815 | data[2] = brightness | (brightness << 4); | |
1816 | data[3] = 0x11; | |
1817 | data[4] = 0x11; | |
1818 | ||
1819 | hid_dbg(hdev, "setting home led brightness\n"); | |
1820 | mutex_lock(&ctlr->output_mutex); | |
6b5dca2d | 1821 | ret = joycon_send_subcmd(ctlr, req, 5, HZ/4); |
697e5c7a DO |
1822 | mutex_unlock(&ctlr->output_mutex); |
1823 | ||
1824 | return ret; | |
1825 | } | |
1826 | ||
c5e62676 | 1827 | static DEFINE_MUTEX(joycon_input_num_mutex); |
697e5c7a | 1828 | static int joycon_leds_create(struct joycon_ctlr *ctlr) |
c5e62676 DO |
1829 | { |
1830 | struct hid_device *hdev = ctlr->hdev; | |
1831 | struct device *dev = &hdev->dev; | |
1832 | const char *d_name = dev_name(dev); | |
1833 | struct led_classdev *led; | |
1834 | char *name; | |
1835 | int ret = 0; | |
1836 | int i; | |
1837 | static int input_num = 1; | |
1838 | ||
2af16c1f DO |
1839 | /* Set the default controller player leds based on controller number */ |
1840 | mutex_lock(&joycon_input_num_mutex); | |
1841 | mutex_lock(&ctlr->output_mutex); | |
1842 | ret = joycon_set_player_leds(ctlr, 0, 0xF >> (4 - input_num)); | |
1843 | if (ret) | |
1844 | hid_warn(ctlr->hdev, "Failed to set leds; ret=%d\n", ret); | |
1845 | mutex_unlock(&ctlr->output_mutex); | |
c5e62676 DO |
1846 | |
1847 | /* configure the player LEDs */ | |
1848 | for (i = 0; i < JC_NUM_LEDS; i++) { | |
1849 | name = devm_kasprintf(dev, GFP_KERNEL, "%s:%s:%s", | |
1850 | d_name, | |
1851 | "green", | |
1852 | joycon_player_led_names[i]); | |
304dd368 DC |
1853 | if (!name) { |
1854 | mutex_unlock(&joycon_input_num_mutex); | |
c5e62676 | 1855 | return -ENOMEM; |
304dd368 | 1856 | } |
c5e62676 DO |
1857 | |
1858 | led = &ctlr->leds[i]; | |
1859 | led->name = name; | |
1860 | led->brightness = ((i + 1) <= input_num) ? 1 : 0; | |
1861 | led->max_brightness = 1; | |
1862 | led->brightness_set_blocking = | |
1863 | joycon_player_led_brightness_set; | |
1864 | led->flags = LED_CORE_SUSPENDRESUME | LED_HW_PLUGGABLE; | |
1865 | ||
1866 | ret = devm_led_classdev_register(&hdev->dev, led); | |
1867 | if (ret) { | |
1868 | hid_err(hdev, "Failed registering %s LED\n", led->name); | |
304dd368 | 1869 | mutex_unlock(&joycon_input_num_mutex); |
697e5c7a | 1870 | return ret; |
c5e62676 DO |
1871 | } |
1872 | } | |
1873 | ||
2af16c1f DO |
1874 | if (++input_num > 4) |
1875 | input_num = 1; | |
1876 | mutex_unlock(&joycon_input_num_mutex); | |
1877 | ||
697e5c7a | 1878 | /* configure the home LED */ |
294a8287 | 1879 | if (jc_type_has_right(ctlr)) { |
697e5c7a DO |
1880 | name = devm_kasprintf(dev, GFP_KERNEL, "%s:%s:%s", |
1881 | d_name, | |
1882 | "blue", | |
1883 | LED_FUNCTION_PLAYER5); | |
1884 | if (!name) | |
1885 | return -ENOMEM; | |
1886 | ||
1887 | led = &ctlr->home_led; | |
1888 | led->name = name; | |
1889 | led->brightness = 0; | |
1890 | led->max_brightness = 0xF; | |
1891 | led->brightness_set_blocking = joycon_home_led_brightness_set; | |
1892 | led->flags = LED_CORE_SUSPENDRESUME | LED_HW_PLUGGABLE; | |
1893 | ret = devm_led_classdev_register(&hdev->dev, led); | |
1894 | if (ret) { | |
1895 | hid_err(hdev, "Failed registering home led\n"); | |
1896 | return ret; | |
1897 | } | |
1898 | /* Set the home LED to 0 as default state */ | |
1899 | ret = joycon_home_led_brightness_set(led, 0); | |
1900 | if (ret) { | |
1901 | hid_err(hdev, "Failed to set home LED dflt; ret=%d\n", | |
1902 | ret); | |
1903 | return ret; | |
1904 | } | |
1905 | } | |
1906 | ||
2af16c1f DO |
1907 | return 0; |
1908 | } | |
1909 | ||
08ebba5c DO |
1910 | static int joycon_battery_get_property(struct power_supply *supply, |
1911 | enum power_supply_property prop, | |
1912 | union power_supply_propval *val) | |
1913 | { | |
1914 | struct joycon_ctlr *ctlr = power_supply_get_drvdata(supply); | |
1915 | unsigned long flags; | |
1916 | int ret = 0; | |
1917 | u8 capacity; | |
1918 | bool charging; | |
1919 | bool powered; | |
1920 | ||
1921 | spin_lock_irqsave(&ctlr->lock, flags); | |
1922 | capacity = ctlr->battery_capacity; | |
1923 | charging = ctlr->battery_charging; | |
1924 | powered = ctlr->host_powered; | |
1925 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
1926 | ||
1927 | switch (prop) { | |
1928 | case POWER_SUPPLY_PROP_PRESENT: | |
1929 | val->intval = 1; | |
1930 | break; | |
1931 | case POWER_SUPPLY_PROP_SCOPE: | |
1932 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
1933 | break; | |
1934 | case POWER_SUPPLY_PROP_CAPACITY_LEVEL: | |
1935 | val->intval = capacity; | |
1936 | break; | |
1937 | case POWER_SUPPLY_PROP_STATUS: | |
1938 | if (charging) | |
1939 | val->intval = POWER_SUPPLY_STATUS_CHARGING; | |
1940 | else if (capacity == POWER_SUPPLY_CAPACITY_LEVEL_FULL && | |
1941 | powered) | |
1942 | val->intval = POWER_SUPPLY_STATUS_FULL; | |
1943 | else | |
1944 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; | |
1945 | break; | |
1946 | default: | |
1947 | ret = -EINVAL; | |
1948 | break; | |
1949 | } | |
1950 | return ret; | |
1951 | } | |
1952 | ||
1953 | static enum power_supply_property joycon_battery_props[] = { | |
1954 | POWER_SUPPLY_PROP_PRESENT, | |
1955 | POWER_SUPPLY_PROP_CAPACITY_LEVEL, | |
1956 | POWER_SUPPLY_PROP_SCOPE, | |
1957 | POWER_SUPPLY_PROP_STATUS, | |
1958 | }; | |
1959 | ||
1960 | static int joycon_power_supply_create(struct joycon_ctlr *ctlr) | |
1961 | { | |
1962 | struct hid_device *hdev = ctlr->hdev; | |
1963 | struct power_supply_config supply_config = { .drv_data = ctlr, }; | |
1964 | const char * const name_fmt = "nintendo_switch_controller_battery_%s"; | |
1965 | int ret = 0; | |
1966 | ||
1967 | /* Set initially to unknown before receiving first input report */ | |
1968 | ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN; | |
1969 | ||
1970 | /* Configure the battery's description */ | |
1971 | ctlr->battery_desc.properties = joycon_battery_props; | |
1972 | ctlr->battery_desc.num_properties = | |
1973 | ARRAY_SIZE(joycon_battery_props); | |
1974 | ctlr->battery_desc.get_property = joycon_battery_get_property; | |
1975 | ctlr->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY; | |
1976 | ctlr->battery_desc.use_for_apm = 0; | |
1977 | ctlr->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL, | |
1978 | name_fmt, | |
1979 | dev_name(&hdev->dev)); | |
1980 | if (!ctlr->battery_desc.name) | |
1981 | return -ENOMEM; | |
1982 | ||
1983 | ctlr->battery = devm_power_supply_register(&hdev->dev, | |
1984 | &ctlr->battery_desc, | |
1985 | &supply_config); | |
1986 | if (IS_ERR(ctlr->battery)) { | |
1987 | ret = PTR_ERR(ctlr->battery); | |
1988 | hid_err(hdev, "Failed to register battery; ret=%d\n", ret); | |
1989 | return ret; | |
1990 | } | |
1991 | ||
1992 | return power_supply_powers(ctlr->battery, &hdev->dev); | |
1993 | } | |
1994 | ||
294a8287 | 1995 | static int joycon_read_info(struct joycon_ctlr *ctlr) |
14252473 DO |
1996 | { |
1997 | int ret; | |
1998 | int i; | |
1999 | int j; | |
2000 | struct joycon_subcmd_request req = { 0 }; | |
2001 | struct joycon_input_report *report; | |
2002 | ||
2003 | req.subcmd_id = JC_SUBCMD_REQ_DEV_INFO; | |
2004 | ret = joycon_send_subcmd(ctlr, &req, 0, HZ); | |
2005 | if (ret) { | |
2006 | hid_err(ctlr->hdev, "Failed to get joycon info; ret=%d\n", ret); | |
2007 | return ret; | |
2008 | } | |
2009 | ||
2010 | report = (struct joycon_input_report *)ctlr->input_buf; | |
2011 | ||
2012 | for (i = 4, j = 0; j < 6; i++, j++) | |
4ff5b108 | 2013 | ctlr->mac_addr[j] = report->subcmd_reply.data[i]; |
14252473 DO |
2014 | |
2015 | ctlr->mac_addr_str = devm_kasprintf(&ctlr->hdev->dev, GFP_KERNEL, | |
2016 | "%02X:%02X:%02X:%02X:%02X:%02X", | |
2017 | ctlr->mac_addr[0], | |
2018 | ctlr->mac_addr[1], | |
2019 | ctlr->mac_addr[2], | |
2020 | ctlr->mac_addr[3], | |
2021 | ctlr->mac_addr[4], | |
2022 | ctlr->mac_addr[5]); | |
2023 | if (!ctlr->mac_addr_str) | |
2024 | return -ENOMEM; | |
2025 | hid_info(ctlr->hdev, "controller MAC = %s\n", ctlr->mac_addr_str); | |
2026 | ||
294a8287 | 2027 | /* Retrieve the type so we can distinguish for charging grip */ |
4ff5b108 | 2028 | ctlr->ctlr_type = report->subcmd_reply.data[2]; |
294a8287 | 2029 | |
14252473 DO |
2030 | return 0; |
2031 | } | |
2032 | ||
2af16c1f DO |
2033 | /* Common handler for parsing inputs */ |
2034 | static int joycon_ctlr_read_handler(struct joycon_ctlr *ctlr, u8 *data, | |
2035 | int size) | |
2036 | { | |
2037 | if (data[0] == JC_INPUT_SUBCMD_REPLY || data[0] == JC_INPUT_IMU_DATA || | |
2038 | data[0] == JC_INPUT_MCU_DATA) { | |
2039 | if (size >= 12) /* make sure it contains the input report */ | |
2040 | joycon_parse_report(ctlr, | |
2041 | (struct joycon_input_report *)data); | |
2042 | } | |
2043 | ||
2044 | return 0; | |
2045 | } | |
2046 | ||
2047 | static int joycon_ctlr_handle_event(struct joycon_ctlr *ctlr, u8 *data, | |
2048 | int size) | |
2049 | { | |
2050 | int ret = 0; | |
2051 | bool match = false; | |
2052 | struct joycon_input_report *report; | |
2053 | ||
2054 | if (unlikely(mutex_is_locked(&ctlr->output_mutex)) && | |
2055 | ctlr->msg_type != JOYCON_MSG_TYPE_NONE) { | |
2056 | switch (ctlr->msg_type) { | |
2057 | case JOYCON_MSG_TYPE_USB: | |
2058 | if (size < 2) | |
2059 | break; | |
2060 | if (data[0] == JC_INPUT_USB_RESPONSE && | |
2061 | data[1] == ctlr->usb_ack_match) | |
2062 | match = true; | |
2063 | break; | |
2064 | case JOYCON_MSG_TYPE_SUBCMD: | |
2065 | if (size < sizeof(struct joycon_input_report) || | |
2066 | data[0] != JC_INPUT_SUBCMD_REPLY) | |
2067 | break; | |
2068 | report = (struct joycon_input_report *)data; | |
4ff5b108 | 2069 | if (report->subcmd_reply.id == ctlr->subcmd_ack_match) |
2af16c1f DO |
2070 | match = true; |
2071 | break; | |
2072 | default: | |
2073 | break; | |
2074 | } | |
2075 | ||
2076 | if (match) { | |
2077 | memcpy(ctlr->input_buf, data, | |
2078 | min(size, (int)JC_MAX_RESP_SIZE)); | |
2079 | ctlr->msg_type = JOYCON_MSG_TYPE_NONE; | |
2080 | ctlr->received_resp = true; | |
2081 | wake_up(&ctlr->wait); | |
2082 | ||
2083 | /* This message has been handled */ | |
2084 | return 1; | |
2085 | } | |
2086 | } | |
2087 | ||
2088 | if (ctlr->ctlr_state == JOYCON_CTLR_STATE_READ) | |
2089 | ret = joycon_ctlr_read_handler(ctlr, data, size); | |
2090 | ||
2091 | return ret; | |
2092 | } | |
2093 | ||
2094 | static int nintendo_hid_event(struct hid_device *hdev, | |
2095 | struct hid_report *report, u8 *raw_data, int size) | |
2096 | { | |
2097 | struct joycon_ctlr *ctlr = hid_get_drvdata(hdev); | |
2098 | ||
2099 | if (size < 1) | |
2100 | return -EINVAL; | |
2101 | ||
2102 | return joycon_ctlr_handle_event(ctlr, raw_data, size); | |
2103 | } | |
2104 | ||
2105 | static int nintendo_hid_probe(struct hid_device *hdev, | |
2106 | const struct hid_device_id *id) | |
2107 | { | |
2108 | int ret; | |
2109 | struct joycon_ctlr *ctlr; | |
2110 | ||
2111 | hid_dbg(hdev, "probe - start\n"); | |
2112 | ||
2113 | ctlr = devm_kzalloc(&hdev->dev, sizeof(*ctlr), GFP_KERNEL); | |
2114 | if (!ctlr) { | |
2115 | ret = -ENOMEM; | |
2116 | goto err; | |
2117 | } | |
2118 | ||
2119 | ctlr->hdev = hdev; | |
2120 | ctlr->ctlr_state = JOYCON_CTLR_STATE_INIT; | |
c4eae84f DO |
2121 | ctlr->rumble_queue_head = JC_RUMBLE_QUEUE_SIZE - 1; |
2122 | ctlr->rumble_queue_tail = 0; | |
2af16c1f DO |
2123 | hid_set_drvdata(hdev, ctlr); |
2124 | mutex_init(&ctlr->output_mutex); | |
2125 | init_waitqueue_head(&ctlr->wait); | |
08ebba5c | 2126 | spin_lock_init(&ctlr->lock); |
c4eae84f DO |
2127 | ctlr->rumble_queue = alloc_workqueue("hid-nintendo-rumble_wq", |
2128 | WQ_FREEZABLE | WQ_MEM_RECLAIM, 0); | |
2129 | INIT_WORK(&ctlr->rumble_worker, joycon_rumble_worker); | |
2af16c1f DO |
2130 | |
2131 | ret = hid_parse(hdev); | |
2132 | if (ret) { | |
2133 | hid_err(hdev, "HID parse failed\n"); | |
c4eae84f | 2134 | goto err_wq; |
2af16c1f DO |
2135 | } |
2136 | ||
c7d0d636 DO |
2137 | /* |
2138 | * Patch the hw version of pro controller/joycons, so applications can | |
2139 | * distinguish between the default HID mappings and the mappings defined | |
2140 | * by the Linux game controller spec. This is important for the SDL2 | |
2141 | * library, which has a game controller database, which uses device ids | |
2142 | * in combination with version as a key. | |
2143 | */ | |
2144 | hdev->version |= 0x8000; | |
2145 | ||
2af16c1f DO |
2146 | ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW); |
2147 | if (ret) { | |
2148 | hid_err(hdev, "HW start failed\n"); | |
c4eae84f | 2149 | goto err_wq; |
2af16c1f DO |
2150 | } |
2151 | ||
2152 | ret = hid_hw_open(hdev); | |
2153 | if (ret) { | |
2154 | hid_err(hdev, "cannot start hardware I/O\n"); | |
2155 | goto err_stop; | |
2156 | } | |
2157 | ||
2158 | hid_device_io_start(hdev); | |
2159 | ||
2160 | /* Initialize the controller */ | |
2161 | mutex_lock(&ctlr->output_mutex); | |
2162 | /* if handshake command fails, assume ble pro controller */ | |
294a8287 | 2163 | if ((jc_type_is_procon(ctlr) || jc_type_is_chrggrip(ctlr)) && |
6b5dca2d | 2164 | !joycon_send_usb(ctlr, JC_USB_CMD_HANDSHAKE, HZ)) { |
2af16c1f DO |
2165 | hid_dbg(hdev, "detected USB controller\n"); |
2166 | /* set baudrate for improved latency */ | |
6b5dca2d | 2167 | ret = joycon_send_usb(ctlr, JC_USB_CMD_BAUDRATE_3M, HZ); |
2af16c1f DO |
2168 | if (ret) { |
2169 | hid_err(hdev, "Failed to set baudrate; ret=%d\n", ret); | |
2170 | goto err_mutex; | |
2171 | } | |
2172 | /* handshake */ | |
6b5dca2d | 2173 | ret = joycon_send_usb(ctlr, JC_USB_CMD_HANDSHAKE, HZ); |
2af16c1f DO |
2174 | if (ret) { |
2175 | hid_err(hdev, "Failed handshake; ret=%d\n", ret); | |
2176 | goto err_mutex; | |
2177 | } | |
2178 | /* | |
2179 | * Set no timeout (to keep controller in USB mode). | |
2180 | * This doesn't send a response, so ignore the timeout. | |
2181 | */ | |
6b5dca2d | 2182 | joycon_send_usb(ctlr, JC_USB_CMD_NO_TIMEOUT, HZ/10); |
294a8287 DO |
2183 | } else if (jc_type_is_chrggrip(ctlr)) { |
2184 | hid_err(hdev, "Failed charging grip handshake\n"); | |
2185 | ret = -ETIMEDOUT; | |
2186 | goto err_mutex; | |
2af16c1f DO |
2187 | } |
2188 | ||
2189 | /* get controller calibration data, and parse it */ | |
2190 | ret = joycon_request_calibration(ctlr); | |
2191 | if (ret) { | |
2192 | /* | |
2193 | * We can function with default calibration, but it may be | |
2194 | * inaccurate. Provide a warning, and continue on. | |
2195 | */ | |
2196 | hid_warn(hdev, "Analog stick positions may be inaccurate\n"); | |
2197 | } | |
2198 | ||
4ff5b108 DO |
2199 | /* get IMU calibration data, and parse it */ |
2200 | ret = joycon_request_imu_calibration(ctlr); | |
2201 | if (ret) { | |
2202 | /* | |
2203 | * We can function with default calibration, but it may be | |
2204 | * inaccurate. Provide a warning, and continue on. | |
2205 | */ | |
2206 | hid_warn(hdev, "Unable to read IMU calibration data\n"); | |
2207 | } | |
2208 | ||
2af16c1f DO |
2209 | /* Set the reporting mode to 0x30, which is the full report mode */ |
2210 | ret = joycon_set_report_mode(ctlr); | |
2211 | if (ret) { | |
2212 | hid_err(hdev, "Failed to set report mode; ret=%d\n", ret); | |
2213 | goto err_mutex; | |
2214 | } | |
2215 | ||
c4eae84f DO |
2216 | /* Enable rumble */ |
2217 | ret = joycon_enable_rumble(ctlr); | |
2218 | if (ret) { | |
2219 | hid_err(hdev, "Failed to enable rumble; ret=%d\n", ret); | |
2220 | goto err_mutex; | |
2221 | } | |
2222 | ||
4ff5b108 DO |
2223 | /* Enable the IMU */ |
2224 | ret = joycon_enable_imu(ctlr); | |
2225 | if (ret) { | |
2226 | hid_err(hdev, "Failed to enable the IMU; ret=%d\n", ret); | |
2227 | goto err_mutex; | |
2228 | } | |
2229 | ||
294a8287 | 2230 | ret = joycon_read_info(ctlr); |
14252473 | 2231 | if (ret) { |
294a8287 | 2232 | hid_err(hdev, "Failed to retrieve controller info; ret=%d\n", |
14252473 DO |
2233 | ret); |
2234 | goto err_mutex; | |
2235 | } | |
2236 | ||
2af16c1f DO |
2237 | mutex_unlock(&ctlr->output_mutex); |
2238 | ||
c5e62676 | 2239 | /* Initialize the leds */ |
697e5c7a | 2240 | ret = joycon_leds_create(ctlr); |
c5e62676 DO |
2241 | if (ret) { |
2242 | hid_err(hdev, "Failed to create leds; ret=%d\n", ret); | |
2243 | goto err_close; | |
2244 | } | |
2245 | ||
08ebba5c DO |
2246 | /* Initialize the battery power supply */ |
2247 | ret = joycon_power_supply_create(ctlr); | |
2248 | if (ret) { | |
2249 | hid_err(hdev, "Failed to create power_supply; ret=%d\n", ret); | |
2250 | goto err_close; | |
2251 | } | |
2252 | ||
2af16c1f DO |
2253 | ret = joycon_input_create(ctlr); |
2254 | if (ret) { | |
2255 | hid_err(hdev, "Failed to create input device; ret=%d\n", ret); | |
2256 | goto err_close; | |
2257 | } | |
2258 | ||
2259 | ctlr->ctlr_state = JOYCON_CTLR_STATE_READ; | |
2260 | ||
2261 | hid_dbg(hdev, "probe - success\n"); | |
2262 | return 0; | |
2263 | ||
2264 | err_mutex: | |
2265 | mutex_unlock(&ctlr->output_mutex); | |
2266 | err_close: | |
2267 | hid_hw_close(hdev); | |
2268 | err_stop: | |
2269 | hid_hw_stop(hdev); | |
c4eae84f DO |
2270 | err_wq: |
2271 | destroy_workqueue(ctlr->rumble_queue); | |
2af16c1f DO |
2272 | err: |
2273 | hid_err(hdev, "probe - fail = %d\n", ret); | |
2274 | return ret; | |
2275 | } | |
2276 | ||
2277 | static void nintendo_hid_remove(struct hid_device *hdev) | |
2278 | { | |
c4eae84f | 2279 | struct joycon_ctlr *ctlr = hid_get_drvdata(hdev); |
012bd52c | 2280 | unsigned long flags; |
c4eae84f | 2281 | |
2af16c1f | 2282 | hid_dbg(hdev, "remove\n"); |
012bd52c DO |
2283 | |
2284 | /* Prevent further attempts at sending subcommands. */ | |
2285 | spin_lock_irqsave(&ctlr->lock, flags); | |
2286 | ctlr->ctlr_state = JOYCON_CTLR_STATE_REMOVED; | |
2287 | spin_unlock_irqrestore(&ctlr->lock, flags); | |
2288 | ||
c4eae84f | 2289 | destroy_workqueue(ctlr->rumble_queue); |
012bd52c | 2290 | |
2af16c1f DO |
2291 | hid_hw_close(hdev); |
2292 | hid_hw_stop(hdev); | |
2293 | } | |
2294 | ||
2295 | static const struct hid_device_id nintendo_hid_devices[] = { | |
2296 | { HID_USB_DEVICE(USB_VENDOR_ID_NINTENDO, | |
2297 | USB_DEVICE_ID_NINTENDO_PROCON) }, | |
2298 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, | |
2299 | USB_DEVICE_ID_NINTENDO_PROCON) }, | |
294a8287 DO |
2300 | { HID_USB_DEVICE(USB_VENDOR_ID_NINTENDO, |
2301 | USB_DEVICE_ID_NINTENDO_CHRGGRIP) }, | |
2af16c1f DO |
2302 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, |
2303 | USB_DEVICE_ID_NINTENDO_JOYCONL) }, | |
2304 | { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, | |
2305 | USB_DEVICE_ID_NINTENDO_JOYCONR) }, | |
2306 | { } | |
2307 | }; | |
2308 | MODULE_DEVICE_TABLE(hid, nintendo_hid_devices); | |
2309 | ||
2310 | static struct hid_driver nintendo_hid_driver = { | |
2311 | .name = "nintendo", | |
2312 | .id_table = nintendo_hid_devices, | |
2313 | .probe = nintendo_hid_probe, | |
2314 | .remove = nintendo_hid_remove, | |
2315 | .raw_event = nintendo_hid_event, | |
2316 | }; | |
2317 | module_hid_driver(nintendo_hid_driver); | |
2318 | ||
2319 | MODULE_LICENSE("GPL"); | |
2320 | MODULE_AUTHOR("Daniel J. Ogorchock <djogorchock@gmail.com>"); | |
2321 | MODULE_DESCRIPTION("Driver for Nintendo Switch Controllers"); | |
4ff5b108 | 2322 |