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f22e9e71 MCC |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // handle em28xx IR remotes via linux kernel input layer. | |
4 | // | |
5 | // Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it> | |
6 | // Markus Rechberger <mrechberger@gmail.com> | |
32590819 | 7 | // Mauro Carvalho Chehab <mchehab@kernel.org> |
f22e9e71 MCC |
8 | // Sascha Sommer <saschasommer@freenet.de> |
9 | // | |
10 | // This program is free software; you can redistribute it and/or modify | |
11 | // it under the terms of the GNU General Public License as published by | |
12 | // the Free Software Foundation; either version 2 of the License, or | |
13 | // (at your option) any later version. | |
14 | // | |
15 | // This program is distributed in the hope that it will be useful, | |
16 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | // GNU General Public License for more details. | |
d5e52653 | 19 | |
8314d402 MCC |
20 | #include "em28xx.h" |
21 | ||
d5e52653 | 22 | #include <linux/module.h> |
d5e52653 MCC |
23 | #include <linux/init.h> |
24 | #include <linux/delay.h> | |
d5e52653 | 25 | #include <linux/interrupt.h> |
d5e52653 | 26 | #include <linux/usb.h> |
5a0e3ad6 | 27 | #include <linux/slab.h> |
120703f9 | 28 | #include <linux/bitrev.h> |
d5e52653 | 29 | |
0ff950a7 FS |
30 | #define EM28XX_SNAPSHOT_KEY KEY_CAMERA |
31 | #define EM28XX_BUTTONS_DEBOUNCED_QUERY_INTERVAL 500 /* [ms] */ | |
32 | #define EM28XX_BUTTONS_VOLATILE_QUERY_INTERVAL 100 /* [ms] */ | |
a9fc52bc | 33 | |
c8793b03 | 34 | static unsigned int ir_debug; |
d5e52653 | 35 | module_param(ir_debug, int, 0644); |
6ea54d93 | 36 | MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]"); |
d5e52653 | 37 | |
727e625c MCC |
38 | #define MODULE_NAME "em28xx" |
39 | ||
08cc05e4 | 40 | #define dprintk(fmt, arg...) do { \ |
ce8591ff | 41 | if (ir_debug) \ |
29b05e22 | 42 | dev_printk(KERN_DEBUG, &ir->dev->intf->dev, \ |
ce8591ff MCC |
43 | "input: %s: " fmt, __func__, ## arg); \ |
44 | } while (0) | |
a924a499 | 45 | |
08cc05e4 MCC |
46 | /* |
47 | * Polling structure used by em28xx IR's | |
48 | */ | |
a924a499 | 49 | |
4b92253a DH |
50 | struct em28xx_ir_poll_result { |
51 | unsigned int toggle_bit:1; | |
52 | unsigned int read_count:7; | |
105e3687 | 53 | |
6d741bfe | 54 | enum rc_proto protocol; |
105e3687 | 55 | u32 scancode; |
4b92253a DH |
56 | }; |
57 | ||
a924a499 MCC |
58 | struct em28xx_IR { |
59 | struct em28xx *dev; | |
d8b4b582 | 60 | struct rc_dev *rc; |
a924a499 MCC |
61 | char name[32]; |
62 | char phys[32]; | |
63 | ||
768da3db | 64 | /* poll decoder */ |
a924a499 | 65 | int polling; |
f263bac9 | 66 | struct delayed_work work; |
0278155c | 67 | unsigned int full_code:1; |
4b92253a | 68 | unsigned int last_readcount; |
6d741bfe | 69 | u64 rc_proto; |
a924a499 | 70 | |
78e719a5 | 71 | struct i2c_client *i2c_client; |
768da3db | 72 | |
6d741bfe SY |
73 | int (*get_key_i2c)(struct i2c_client *ir, enum rc_proto *protocol, |
74 | u32 *scancode); | |
08cc05e4 | 75 | int (*get_key)(struct em28xx_IR *ir, struct em28xx_ir_poll_result *r); |
a924a499 MCC |
76 | }; |
77 | ||
08cc05e4 MCC |
78 | /* |
79 | * I2C IR based get keycodes - should be used with ir-kbd-i2c | |
80 | */ | |
d5e52653 | 81 | |
120703f9 | 82 | static int em28xx_get_key_terratec(struct i2c_client *i2c_dev, |
6d741bfe | 83 | enum rc_proto *protocol, u32 *scancode) |
e43f14af | 84 | { |
728d9fd9 | 85 | int rc; |
e43f14af MR |
86 | unsigned char b; |
87 | ||
88 | /* poll IR chip */ | |
728d9fd9 MCC |
89 | rc = i2c_master_recv(i2c_dev, &b, 1); |
90 | if (rc != 1) { | |
91 | if (rc < 0) | |
92 | return rc; | |
e43f14af | 93 | return -EIO; |
728d9fd9 | 94 | } |
e43f14af | 95 | |
08cc05e4 MCC |
96 | /* |
97 | * it seems that 0xFE indicates that a button is still hold | |
98 | * down, while 0xff indicates that no button is hold down. | |
99 | */ | |
e43f14af | 100 | |
4f9c05aa | 101 | if (b == 0xff) |
e43f14af MR |
102 | return 0; |
103 | ||
4f9c05aa | 104 | if (b == 0xfe) |
e43f14af MR |
105 | /* keep old data */ |
106 | return 1; | |
107 | ||
6d741bfe | 108 | *protocol = RC_PROTO_UNKNOWN; |
120703f9 | 109 | *scancode = b; |
e43f14af MR |
110 | return 1; |
111 | } | |
112 | ||
120703f9 | 113 | static int em28xx_get_key_em_haup(struct i2c_client *i2c_dev, |
6d741bfe | 114 | enum rc_proto *protocol, u32 *scancode) |
d5e52653 MCC |
115 | { |
116 | unsigned char buf[2]; | |
b779974b | 117 | int size; |
d5e52653 MCC |
118 | |
119 | /* poll IR chip */ | |
768da3db | 120 | size = i2c_master_recv(i2c_dev, buf, sizeof(buf)); |
b779974b MCC |
121 | |
122 | if (size != 2) | |
d5e52653 MCC |
123 | return -EIO; |
124 | ||
125 | /* Does eliminate repeated parity code */ | |
6ea54d93 | 126 | if (buf[1] == 0xff) |
d5e52653 MCC |
127 | return 0; |
128 | ||
b779974b MCC |
129 | /* |
130 | * Rearranges bits to the right order. | |
131 | * The bit order were determined experimentally by using | |
132 | * The original Hauppauge Grey IR and another RC5 that uses addr=0x08 | |
133 | * The RC5 code has 14 bits, but we've experimentally determined | |
134 | * the meaning for only 11 bits. | |
135 | * So, the code translation is not complete. Yet, it is enough to | |
136 | * work with the provided RC5 IR. | |
137 | */ | |
6d741bfe | 138 | *protocol = RC_PROTO_RC5; |
120703f9 | 139 | *scancode = (bitrev8(buf[1]) & 0x1f) << 8 | bitrev8(buf[0]) >> 2; |
d5e52653 MCC |
140 | return 1; |
141 | } | |
142 | ||
768da3db | 143 | static int em28xx_get_key_pinnacle_usb_grey(struct i2c_client *i2c_dev, |
6d741bfe SY |
144 | enum rc_proto *protocol, |
145 | u32 *scancode) | |
366cc64b MR |
146 | { |
147 | unsigned char buf[3]; | |
148 | ||
149 | /* poll IR chip */ | |
150 | ||
08cc05e4 | 151 | if (i2c_master_recv(i2c_dev, buf, 3) != 3) |
366cc64b | 152 | return -EIO; |
366cc64b | 153 | |
6ea54d93 | 154 | if (buf[0] != 0x00) |
366cc64b | 155 | return 0; |
366cc64b | 156 | |
6d741bfe | 157 | *protocol = RC_PROTO_UNKNOWN; |
120703f9 | 158 | *scancode = buf[2] & 0x3f; |
366cc64b MR |
159 | return 1; |
160 | } | |
161 | ||
768da3db | 162 | static int em28xx_get_key_winfast_usbii_deluxe(struct i2c_client *i2c_dev, |
6d741bfe SY |
163 | enum rc_proto *protocol, |
164 | u32 *scancode) | |
ca39d84d MA |
165 | { |
166 | unsigned char subaddr, keydetect, key; | |
167 | ||
08cc05e4 MCC |
168 | struct i2c_msg msg[] = { |
169 | { | |
170 | .addr = i2c_dev->addr, | |
171 | .flags = 0, | |
172 | .buf = &subaddr, .len = 1 | |
173 | }, { | |
174 | .addr = i2c_dev->addr, | |
175 | .flags = I2C_M_RD, | |
176 | .buf = &keydetect, | |
177 | .len = 1 | |
178 | } | |
179 | }; | |
ca39d84d MA |
180 | |
181 | subaddr = 0x10; | |
08cc05e4 | 182 | if (i2c_transfer(i2c_dev->adapter, msg, 2) != 2) |
ca39d84d | 183 | return -EIO; |
ca39d84d MA |
184 | if (keydetect == 0x00) |
185 | return 0; | |
186 | ||
187 | subaddr = 0x00; | |
188 | msg[1].buf = &key; | |
08cc05e4 | 189 | if (i2c_transfer(i2c_dev->adapter, msg, 2) != 2) |
62ec3f86 | 190 | return -EIO; |
ca39d84d MA |
191 | if (key == 0x00) |
192 | return 0; | |
193 | ||
6d741bfe | 194 | *protocol = RC_PROTO_UNKNOWN; |
120703f9 | 195 | *scancode = key; |
ca39d84d MA |
196 | return 1; |
197 | } | |
198 | ||
08cc05e4 MCC |
199 | /* |
200 | * Poll based get keycode functions | |
201 | */ | |
a924a499 | 202 | |
4b92253a DH |
203 | /* This is for the em2860/em2880 */ |
204 | static int default_polling_getkey(struct em28xx_IR *ir, | |
205 | struct em28xx_ir_poll_result *poll_result) | |
a924a499 MCC |
206 | { |
207 | struct em28xx *dev = ir->dev; | |
208 | int rc; | |
4b92253a | 209 | u8 msg[3] = { 0, 0, 0 }; |
a924a499 | 210 | |
08cc05e4 MCC |
211 | /* |
212 | * Read key toggle, brand, and key code | |
213 | * on registers 0x45, 0x46 and 0x47 | |
0a6b8a85 | 214 | */ |
a924a499 | 215 | rc = dev->em28xx_read_reg_req_len(dev, 0, EM28XX_R45_IR, |
0a6b8a85 | 216 | msg, sizeof(msg)); |
a924a499 MCC |
217 | if (rc < 0) |
218 | return rc; | |
219 | ||
4b92253a DH |
220 | /* Infrared toggle (Reg 0x45[7]) */ |
221 | poll_result->toggle_bit = (msg[0] >> 7); | |
222 | ||
223 | /* Infrared read count (Reg 0x45[6:0] */ | |
224 | poll_result->read_count = (msg[0] & 0x7f); | |
225 | ||
105e3687 | 226 | /* Remote Control Address/Data (Regs 0x46/0x47) */ |
6d741bfe SY |
227 | switch (ir->rc_proto) { |
228 | case RC_PROTO_BIT_RC5: | |
229 | poll_result->protocol = RC_PROTO_RC5; | |
120703f9 DH |
230 | poll_result->scancode = RC_SCANCODE_RC5(msg[1], msg[2]); |
231 | break; | |
232 | ||
6d741bfe SY |
233 | case RC_PROTO_BIT_NEC: |
234 | poll_result->protocol = RC_PROTO_NEC; | |
120703f9 DH |
235 | poll_result->scancode = RC_SCANCODE_NEC(msg[1], msg[2]); |
236 | break; | |
237 | ||
238 | default: | |
6d741bfe | 239 | poll_result->protocol = RC_PROTO_UNKNOWN; |
120703f9 DH |
240 | poll_result->scancode = msg[1] << 8 | msg[2]; |
241 | break; | |
242 | } | |
4b92253a DH |
243 | |
244 | return 0; | |
245 | } | |
246 | ||
247 | static int em2874_polling_getkey(struct em28xx_IR *ir, | |
248 | struct em28xx_ir_poll_result *poll_result) | |
249 | { | |
250 | struct em28xx *dev = ir->dev; | |
251 | int rc; | |
252 | u8 msg[5] = { 0, 0, 0, 0, 0 }; | |
253 | ||
08cc05e4 MCC |
254 | /* |
255 | * Read key toggle, brand, and key code | |
256 | * on registers 0x51-55 | |
4b92253a DH |
257 | */ |
258 | rc = dev->em28xx_read_reg_req_len(dev, 0, EM2874_R51_IR, | |
259 | msg, sizeof(msg)); | |
260 | if (rc < 0) | |
261 | return rc; | |
262 | ||
263 | /* Infrared toggle (Reg 0x51[7]) */ | |
264 | poll_result->toggle_bit = (msg[0] >> 7); | |
265 | ||
266 | /* Infrared read count (Reg 0x51[6:0] */ | |
267 | poll_result->read_count = (msg[0] & 0x7f); | |
268 | ||
105e3687 MCC |
269 | /* |
270 | * Remote Control Address (Reg 0x52) | |
271 | * Remote Control Data (Reg 0x53-0x55) | |
272 | */ | |
6d741bfe SY |
273 | switch (ir->rc_proto) { |
274 | case RC_PROTO_BIT_RC5: | |
275 | poll_result->protocol = RC_PROTO_RC5; | |
120703f9 | 276 | poll_result->scancode = RC_SCANCODE_RC5(msg[1], msg[2]); |
105e3687 | 277 | break; |
120703f9 | 278 | |
6d741bfe | 279 | case RC_PROTO_BIT_NEC: |
120703f9 | 280 | poll_result->scancode = msg[1] << 8 | msg[2]; |
17809ed2 | 281 | if ((msg[3] ^ msg[4]) != 0xff) { /* 32 bits NEC */ |
6d741bfe | 282 | poll_result->protocol = RC_PROTO_NEC32; |
120703f9 DH |
283 | poll_result->scancode = RC_SCANCODE_NEC32((msg[1] << 24) | |
284 | (msg[2] << 16) | | |
285 | (msg[3] << 8) | | |
286 | (msg[4])); | |
17809ed2 | 287 | } else if ((msg[1] ^ msg[2]) != 0xff) { /* 24 bits NEC */ |
6d741bfe | 288 | poll_result->protocol = RC_PROTO_NECX; |
120703f9 DH |
289 | poll_result->scancode = RC_SCANCODE_NECX(msg[1] << 8 | |
290 | msg[2], msg[3]); | |
17809ed2 | 291 | } else { /* Normal NEC */ |
6d741bfe | 292 | poll_result->protocol = RC_PROTO_NEC; |
120703f9 | 293 | poll_result->scancode = RC_SCANCODE_NEC(msg[1], msg[3]); |
17809ed2 | 294 | } |
105e3687 | 295 | break; |
120703f9 | 296 | |
6d741bfe SY |
297 | case RC_PROTO_BIT_RC6_0: |
298 | poll_result->protocol = RC_PROTO_RC6_0; | |
120703f9 | 299 | poll_result->scancode = RC_SCANCODE_RC6_0(msg[1], msg[2]); |
0dae8839 | 300 | break; |
120703f9 | 301 | |
105e3687 | 302 | default: |
6d741bfe | 303 | poll_result->protocol = RC_PROTO_UNKNOWN; |
105e3687 MCC |
304 | poll_result->scancode = (msg[1] << 24) | (msg[2] << 16) | |
305 | (msg[3] << 8) | msg[4]; | |
306 | break; | |
307 | } | |
4b92253a DH |
308 | |
309 | return 0; | |
a924a499 MCC |
310 | } |
311 | ||
08cc05e4 MCC |
312 | /* |
313 | * Polling code for em28xx | |
314 | */ | |
a924a499 | 315 | |
768da3db FS |
316 | static int em28xx_i2c_ir_handle_key(struct em28xx_IR *ir) |
317 | { | |
120703f9 | 318 | static u32 scancode; |
6d741bfe | 319 | enum rc_proto protocol; |
768da3db | 320 | int rc; |
1d968cda | 321 | |
78e719a5 | 322 | rc = ir->get_key_i2c(ir->i2c_client, &protocol, &scancode); |
768da3db FS |
323 | if (rc < 0) { |
324 | dprintk("ir->get_key_i2c() failed: %d\n", rc); | |
325 | return rc; | |
326 | } | |
327 | ||
328 | if (rc) { | |
120703f9 DH |
329 | dprintk("%s: proto = 0x%04x, scancode = 0x%04x\n", |
330 | __func__, protocol, scancode); | |
331 | rc_keydown(ir->rc, protocol, scancode, 0); | |
768da3db FS |
332 | } |
333 | return 0; | |
334 | } | |
335 | ||
a924a499 MCC |
336 | static void em28xx_ir_handle_key(struct em28xx_IR *ir) |
337 | { | |
4b92253a | 338 | int result; |
4b92253a DH |
339 | struct em28xx_ir_poll_result poll_result; |
340 | ||
341 | /* read the registers containing the IR status */ | |
342 | result = ir->get_key(ir, &poll_result); | |
603044d8 | 343 | if (unlikely(result < 0)) { |
768da3db | 344 | dprintk("ir->get_key() failed: %d\n", result); |
a924a499 | 345 | return; |
4b92253a | 346 | } |
a924a499 | 347 | |
603044d8 | 348 | if (unlikely(poll_result.read_count != ir->last_readcount)) { |
105e3687 | 349 | dprintk("%s: toggle: %d, count: %d, key 0x%04x\n", __func__, |
603044d8 | 350 | poll_result.toggle_bit, poll_result.read_count, |
105e3687 | 351 | poll_result.scancode); |
a469585b | 352 | if (ir->full_code) |
ca86674b | 353 | rc_keydown(ir->rc, |
120703f9 | 354 | poll_result.protocol, |
105e3687 | 355 | poll_result.scancode, |
a469585b DH |
356 | poll_result.toggle_bit); |
357 | else | |
ca86674b | 358 | rc_keydown(ir->rc, |
6d741bfe | 359 | RC_PROTO_UNKNOWN, |
105e3687 | 360 | poll_result.scancode & 0xff, |
a469585b | 361 | poll_result.toggle_bit); |
a469585b | 362 | |
20ae9742 MCC |
363 | if (ir->dev->chip_id == CHIP_ID_EM2874 || |
364 | ir->dev->chip_id == CHIP_ID_EM2884) | |
08cc05e4 MCC |
365 | /* |
366 | * The em2874 clears the readcount field every time the | |
367 | * register is read. The em2860/2880 datasheet says | |
368 | * that it is supposed to clear the readcount, but it | |
369 | * doesn't. So with the em2874, we are looking for a | |
370 | * non-zero read count as opposed to a readcount | |
371 | * that is incrementing | |
372 | */ | |
603044d8 MCC |
373 | ir->last_readcount = 0; |
374 | else | |
375 | ir->last_readcount = poll_result.read_count; | |
376 | } | |
a924a499 MCC |
377 | } |
378 | ||
a924a499 MCC |
379 | static void em28xx_ir_work(struct work_struct *work) |
380 | { | |
f263bac9 | 381 | struct em28xx_IR *ir = container_of(work, struct em28xx_IR, work.work); |
a924a499 | 382 | |
78e719a5 | 383 | if (ir->i2c_client) /* external i2c device */ |
9b4539be FS |
384 | em28xx_i2c_ir_handle_key(ir); |
385 | else /* internal device */ | |
386 | em28xx_ir_handle_key(ir); | |
f263bac9 | 387 | schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling)); |
a924a499 MCC |
388 | } |
389 | ||
d8b4b582 | 390 | static int em28xx_ir_start(struct rc_dev *rc) |
a924a499 | 391 | { |
d8b4b582 | 392 | struct em28xx_IR *ir = rc->priv; |
c373cabf | 393 | |
9b4539be | 394 | INIT_DELAYED_WORK(&ir->work, em28xx_ir_work); |
f263bac9 | 395 | schedule_delayed_work(&ir->work, 0); |
c373cabf MCC |
396 | |
397 | return 0; | |
a924a499 MCC |
398 | } |
399 | ||
d8b4b582 | 400 | static void em28xx_ir_stop(struct rc_dev *rc) |
a924a499 | 401 | { |
d8b4b582 | 402 | struct em28xx_IR *ir = rc->priv; |
c373cabf | 403 | |
f263bac9 | 404 | cancel_delayed_work_sync(&ir->work); |
a924a499 MCC |
405 | } |
406 | ||
6d741bfe | 407 | static int em2860_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_proto) |
a924a499 | 408 | { |
d8b4b582 | 409 | struct em28xx_IR *ir = rc_dev->priv; |
950b0f5a | 410 | struct em28xx *dev = ir->dev; |
1bad429e | 411 | |
0dae8839 | 412 | /* Adjust xclk based on IR table for RC5/NEC tables */ |
6d741bfe | 413 | if (*rc_proto & RC_PROTO_BIT_RC5) { |
0dae8839 MCC |
414 | dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE; |
415 | ir->full_code = 1; | |
6d741bfe SY |
416 | *rc_proto = RC_PROTO_BIT_RC5; |
417 | } else if (*rc_proto & RC_PROTO_BIT_NEC) { | |
0dae8839 MCC |
418 | dev->board.xclk &= ~EM28XX_XCLK_IR_RC5_MODE; |
419 | ir->full_code = 1; | |
6d741bfe SY |
420 | *rc_proto = RC_PROTO_BIT_NEC; |
421 | } else if (*rc_proto & RC_PROTO_BIT_UNKNOWN) { | |
422 | *rc_proto = RC_PROTO_BIT_UNKNOWN; | |
0dae8839 | 423 | } else { |
6d741bfe | 424 | *rc_proto = ir->rc_proto; |
0dae8839 MCC |
425 | return -EINVAL; |
426 | } | |
0dae8839 MCC |
427 | em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, dev->board.xclk, |
428 | EM28XX_XCLK_IR_RC5_MODE); | |
429 | ||
6d741bfe | 430 | ir->rc_proto = *rc_proto; |
950b0f5a | 431 | |
0dae8839 MCC |
432 | return 0; |
433 | } | |
434 | ||
6d741bfe | 435 | static int em2874_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_proto) |
0dae8839 MCC |
436 | { |
437 | struct em28xx_IR *ir = rc_dev->priv; | |
438 | struct em28xx *dev = ir->dev; | |
439 | u8 ir_config = EM2874_IR_RC5; | |
440 | ||
441 | /* Adjust xclk and set type based on IR table for RC5/NEC/RC6 tables */ | |
6d741bfe | 442 | if (*rc_proto & RC_PROTO_BIT_RC5) { |
1bad429e MCC |
443 | dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE; |
444 | ir->full_code = 1; | |
6d741bfe SY |
445 | *rc_proto = RC_PROTO_BIT_RC5; |
446 | } else if (*rc_proto & RC_PROTO_BIT_NEC) { | |
1bad429e | 447 | dev->board.xclk &= ~EM28XX_XCLK_IR_RC5_MODE; |
105e3687 | 448 | ir_config = EM2874_IR_NEC | EM2874_IR_NEC_NO_PARITY; |
1bad429e | 449 | ir->full_code = 1; |
6d741bfe SY |
450 | *rc_proto = RC_PROTO_BIT_NEC; |
451 | } else if (*rc_proto & RC_PROTO_BIT_RC6_0) { | |
0dae8839 MCC |
452 | dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE; |
453 | ir_config = EM2874_IR_RC6_MODE_0; | |
454 | ir->full_code = 1; | |
6d741bfe SY |
455 | *rc_proto = RC_PROTO_BIT_RC6_0; |
456 | } else if (*rc_proto & RC_PROTO_BIT_UNKNOWN) { | |
457 | *rc_proto = RC_PROTO_BIT_UNKNOWN; | |
0dae8839 | 458 | } else { |
6d741bfe | 459 | *rc_proto = ir->rc_proto; |
0dae8839 MCC |
460 | return -EINVAL; |
461 | } | |
0dae8839 | 462 | em28xx_write_regs(dev, EM2874_R50_IR_CONFIG, &ir_config, 1); |
1bad429e MCC |
463 | em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, dev->board.xclk, |
464 | EM28XX_XCLK_IR_RC5_MODE); | |
a924a499 | 465 | |
6d741bfe | 466 | ir->rc_proto = *rc_proto; |
0dae8839 MCC |
467 | |
468 | return 0; | |
469 | } | |
6d741bfe SY |
470 | |
471 | static int em28xx_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_proto) | |
0dae8839 MCC |
472 | { |
473 | struct em28xx_IR *ir = rc_dev->priv; | |
474 | struct em28xx *dev = ir->dev; | |
475 | ||
4b92253a DH |
476 | /* Setup the proper handler based on the chip */ |
477 | switch (dev->chip_id) { | |
478 | case CHIP_ID_EM2860: | |
479 | case CHIP_ID_EM2883: | |
6d741bfe | 480 | return em2860_ir_change_protocol(rc_dev, rc_proto); |
20ae9742 | 481 | case CHIP_ID_EM2884: |
4b92253a | 482 | case CHIP_ID_EM2874: |
a24ec448 | 483 | case CHIP_ID_EM28174: |
9f1d0bda | 484 | case CHIP_ID_EM28178: |
6d741bfe | 485 | return em2874_ir_change_protocol(rc_dev, rc_proto); |
4b92253a | 486 | default: |
29b05e22 | 487 | dev_err(&ir->dev->intf->dev, |
ce8591ff MCC |
488 | "Unrecognized em28xx chip id 0x%02x: IR not supported\n", |
489 | dev->chip_id); | |
0dae8839 | 490 | return -EINVAL; |
950b0f5a | 491 | } |
950b0f5a MCC |
492 | } |
493 | ||
1d968cda | 494 | static int em28xx_probe_i2c_ir(struct em28xx *dev) |
9d9f479b | 495 | { |
768da3db | 496 | int i = 0; |
08cc05e4 MCC |
497 | /* |
498 | * Leadtek winfast tv USBII deluxe can find a non working IR-device | |
499 | * at address 0x18, so if that address is needed for another board in | |
500 | * the future, please put it after 0x1f. | |
501 | */ | |
9d9f479b EG |
502 | const unsigned short addr_list[] = { |
503 | 0x1f, 0x30, 0x47, I2C_CLIENT_END | |
504 | }; | |
505 | ||
768da3db | 506 | while (addr_list[i] != I2C_CLIENT_END) { |
08cc05e4 MCC |
507 | if (i2c_probe_func_quick_read(&dev->i2c_adap[dev->def_i2c_bus], |
508 | addr_list[i]) == 1) | |
1d968cda | 509 | return addr_list[i]; |
768da3db | 510 | i++; |
9d9f479b EG |
511 | } |
512 | ||
1d968cda | 513 | return -ENODEV; |
9d9f479b EG |
514 | } |
515 | ||
08cc05e4 MCC |
516 | /* |
517 | * Handle buttons | |
518 | */ | |
769af214 | 519 | |
f5222609 | 520 | static void em28xx_query_buttons(struct work_struct *work) |
769af214 | 521 | { |
769af214 | 522 | struct em28xx *dev = |
f5222609 FS |
523 | container_of(work, struct em28xx, buttons_query_work.work); |
524 | u8 i, j; | |
525 | int regval; | |
7763481a | 526 | bool is_pressed, was_pressed; |
6063d077 | 527 | const struct em28xx_led *led; |
f5222609 FS |
528 | |
529 | /* Poll and evaluate all addresses */ | |
530 | for (i = 0; i < dev->num_button_polling_addresses; i++) { | |
531 | /* Read value from register */ | |
532 | regval = em28xx_read_reg(dev, dev->button_polling_addresses[i]); | |
533 | if (regval < 0) | |
534 | continue; | |
535 | /* Check states of the buttons and act */ | |
536 | j = 0; | |
537 | while (dev->board.buttons[j].role >= 0 && | |
fdf1bc9f | 538 | dev->board.buttons[j].role < EM28XX_NUM_BUTTON_ROLES) { |
08cc05e4 MCC |
539 | const struct em28xx_button *button; |
540 | ||
541 | button = &dev->board.buttons[j]; | |
0108ae7f | 542 | |
f5222609 FS |
543 | /* Check if button uses the current address */ |
544 | if (button->reg_r != dev->button_polling_addresses[i]) { | |
545 | j++; | |
546 | continue; | |
547 | } | |
7763481a FS |
548 | /* Determine if button is and was pressed last time */ |
549 | is_pressed = regval & button->mask; | |
550 | was_pressed = dev->button_polling_last_values[i] | |
551 | & button->mask; | |
552 | if (button->inverted) { | |
553 | is_pressed = !is_pressed; | |
554 | was_pressed = !was_pressed; | |
555 | } | |
556 | /* Clear button state (if needed) */ | |
557 | if (is_pressed && button->reg_clearing) | |
558 | em28xx_write_reg(dev, button->reg_clearing, | |
559 | (~regval & button->mask) | |
560 | | (regval & ~button->mask)); | |
f5222609 | 561 | /* Handle button state */ |
7763481a | 562 | if (!is_pressed || was_pressed) { |
f5222609 FS |
563 | j++; |
564 | continue; | |
565 | } | |
566 | switch (button->role) { | |
567 | case EM28XX_BUTTON_SNAPSHOT: | |
568 | /* Emulate the keypress */ | |
569 | input_report_key(dev->sbutton_input_dev, | |
570 | EM28XX_SNAPSHOT_KEY, 1); | |
571 | /* Unpress the key */ | |
572 | input_report_key(dev->sbutton_input_dev, | |
573 | EM28XX_SNAPSHOT_KEY, 0); | |
574 | break; | |
6063d077 FS |
575 | case EM28XX_BUTTON_ILLUMINATION: |
576 | led = em28xx_find_led(dev, | |
577 | EM28XX_LED_ILLUMINATION); | |
578 | /* Switch illumination LED on/off */ | |
579 | if (led) | |
580 | em28xx_toggle_reg_bits(dev, | |
581 | led->gpio_reg, | |
582 | led->gpio_mask); | |
583 | break; | |
f5222609 FS |
584 | default: |
585 | WARN_ONCE(1, "BUG: unhandled button role."); | |
586 | } | |
f5222609 FS |
587 | /* Next button */ |
588 | j++; | |
589 | } | |
7763481a FS |
590 | /* Save current value for comparison during the next polling */ |
591 | dev->button_polling_last_values[i] = regval; | |
769af214 | 592 | } |
769af214 | 593 | /* Schedule next poll */ |
f5222609 | 594 | schedule_delayed_work(&dev->buttons_query_work, |
0ff950a7 | 595 | msecs_to_jiffies(dev->button_polling_interval)); |
769af214 EG |
596 | } |
597 | ||
f5222609 | 598 | static int em28xx_register_snapshot_button(struct em28xx *dev) |
769af214 | 599 | { |
c6d48134 | 600 | struct usb_device *udev = interface_to_usbdev(dev->intf); |
769af214 EG |
601 | struct input_dev *input_dev; |
602 | int err; | |
603 | ||
29b05e22 | 604 | dev_info(&dev->intf->dev, "Registering snapshot button...\n"); |
769af214 | 605 | input_dev = input_allocate_device(); |
da4a7339 | 606 | if (!input_dev) |
f5222609 | 607 | return -ENOMEM; |
769af214 | 608 | |
c6d48134 | 609 | usb_make_path(udev, dev->snapshot_button_path, |
769af214 EG |
610 | sizeof(dev->snapshot_button_path)); |
611 | strlcat(dev->snapshot_button_path, "/sbutton", | |
612 | sizeof(dev->snapshot_button_path)); | |
769af214 EG |
613 | |
614 | input_dev->name = "em28xx snapshot button"; | |
615 | input_dev->phys = dev->snapshot_button_path; | |
616 | input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); | |
617 | set_bit(EM28XX_SNAPSHOT_KEY, input_dev->keybit); | |
618 | input_dev->keycodesize = 0; | |
619 | input_dev->keycodemax = 0; | |
620 | input_dev->id.bustype = BUS_USB; | |
c6d48134 MCC |
621 | input_dev->id.vendor = le16_to_cpu(udev->descriptor.idVendor); |
622 | input_dev->id.product = le16_to_cpu(udev->descriptor.idProduct); | |
769af214 | 623 | input_dev->id.version = 1; |
29b05e22 | 624 | input_dev->dev.parent = &dev->intf->dev; |
769af214 EG |
625 | |
626 | err = input_register_device(input_dev); | |
627 | if (err) { | |
29b05e22 | 628 | dev_err(&dev->intf->dev, "input_register_device failed\n"); |
769af214 | 629 | input_free_device(input_dev); |
f5222609 | 630 | return err; |
769af214 EG |
631 | } |
632 | ||
633 | dev->sbutton_input_dev = input_dev; | |
f5222609 FS |
634 | return 0; |
635 | } | |
769af214 | 636 | |
f5222609 FS |
637 | static void em28xx_init_buttons(struct em28xx *dev) |
638 | { | |
639 | u8 i = 0, j = 0; | |
7e6c8c19 | 640 | bool addr_new = false; |
f5222609 | 641 | |
0ff950a7 | 642 | dev->button_polling_interval = EM28XX_BUTTONS_DEBOUNCED_QUERY_INTERVAL; |
f5222609 | 643 | while (dev->board.buttons[i].role >= 0 && |
fdf1bc9f | 644 | dev->board.buttons[i].role < EM28XX_NUM_BUTTON_ROLES) { |
0108ae7f MCC |
645 | const struct em28xx_button *button = &dev->board.buttons[i]; |
646 | ||
f5222609 | 647 | /* Check if polling address is already on the list */ |
7e6c8c19 | 648 | addr_new = true; |
f5222609 FS |
649 | for (j = 0; j < dev->num_button_polling_addresses; j++) { |
650 | if (button->reg_r == dev->button_polling_addresses[j]) { | |
7e6c8c19 | 651 | addr_new = false; |
f5222609 FS |
652 | break; |
653 | } | |
654 | } | |
655 | /* Check if max. number of polling addresses is exceeded */ | |
656 | if (addr_new && dev->num_button_polling_addresses | |
657 | >= EM28XX_NUM_BUTTON_ADDRESSES_MAX) { | |
658 | WARN_ONCE(1, "BUG: maximum number of button polling addresses exceeded."); | |
0ff950a7 | 659 | goto next_button; |
f5222609 | 660 | } |
6063d077 | 661 | /* Button role specific checks and actions */ |
f5222609 | 662 | if (button->role == EM28XX_BUTTON_SNAPSHOT) { |
6063d077 | 663 | /* Register input device */ |
f5222609 | 664 | if (em28xx_register_snapshot_button(dev) < 0) |
0ff950a7 | 665 | goto next_button; |
6063d077 FS |
666 | } else if (button->role == EM28XX_BUTTON_ILLUMINATION) { |
667 | /* Check sanity */ | |
668 | if (!em28xx_find_led(dev, EM28XX_LED_ILLUMINATION)) { | |
29b05e22 | 669 | dev_err(&dev->intf->dev, |
ce8591ff | 670 | "BUG: illumination button defined, but no illumination LED.\n"); |
0ff950a7 | 671 | goto next_button; |
6063d077 | 672 | } |
f5222609 FS |
673 | } |
674 | /* Add read address to list of polling addresses */ | |
675 | if (addr_new) { | |
676 | unsigned int index = dev->num_button_polling_addresses; | |
08cc05e4 | 677 | |
f5222609 FS |
678 | dev->button_polling_addresses[index] = button->reg_r; |
679 | dev->num_button_polling_addresses++; | |
680 | } | |
0ff950a7 FS |
681 | /* Reduce polling interval if necessary */ |
682 | if (!button->reg_clearing) | |
683 | dev->button_polling_interval = | |
684 | EM28XX_BUTTONS_VOLATILE_QUERY_INTERVAL; | |
685 | next_button: | |
f5222609 FS |
686 | /* Next button */ |
687 | i++; | |
688 | } | |
689 | ||
690 | /* Start polling */ | |
691 | if (dev->num_button_polling_addresses) { | |
7763481a | 692 | memset(dev->button_polling_last_values, 0, |
fdf1bc9f | 693 | EM28XX_NUM_BUTTON_ADDRESSES_MAX); |
f5222609 | 694 | schedule_delayed_work(&dev->buttons_query_work, |
fdf1bc9f | 695 | msecs_to_jiffies(dev->button_polling_interval)); |
f5222609 | 696 | } |
769af214 EG |
697 | } |
698 | ||
f5222609 | 699 | static void em28xx_shutdown_buttons(struct em28xx *dev) |
769af214 | 700 | { |
f5222609 FS |
701 | /* Cancel polling */ |
702 | cancel_delayed_work_sync(&dev->buttons_query_work); | |
703 | /* Clear polling addresses list */ | |
704 | dev->num_button_polling_addresses = 0; | |
705 | /* Deregister input devices */ | |
08cc05e4 | 706 | if (dev->sbutton_input_dev) { |
29b05e22 | 707 | dev_info(&dev->intf->dev, "Deregistering snapshot button\n"); |
769af214 EG |
708 | input_unregister_device(dev->sbutton_input_dev); |
709 | dev->sbutton_input_dev = NULL; | |
710 | } | |
769af214 EG |
711 | } |
712 | ||
f4d4e765 | 713 | static int em28xx_ir_init(struct em28xx *dev) |
950b0f5a | 714 | { |
c6d48134 | 715 | struct usb_device *udev = interface_to_usbdev(dev->intf); |
950b0f5a | 716 | struct em28xx_IR *ir; |
d8b4b582 | 717 | struct rc_dev *rc; |
950b0f5a | 718 | int err = -ENOMEM; |
6d741bfe | 719 | u64 rc_proto; |
1d968cda | 720 | u16 i2c_rc_dev_addr = 0; |
950b0f5a | 721 | |
822b8dea MCC |
722 | if (dev->is_audio_only) { |
723 | /* Shouldn't initialize IR for this interface */ | |
724 | return 0; | |
725 | } | |
726 | ||
47677e51 | 727 | kref_get(&dev->ref); |
bbfebeea | 728 | INIT_DELAYED_WORK(&dev->buttons_query_work, em28xx_query_buttons); |
47677e51 | 729 | |
f5222609 FS |
730 | if (dev->board.buttons) |
731 | em28xx_init_buttons(dev); | |
8303dc99 MCC |
732 | |
733 | if (dev->board.has_ir_i2c) { | |
1d968cda FS |
734 | i2c_rc_dev_addr = em28xx_probe_i2c_ir(dev); |
735 | if (!i2c_rc_dev_addr) { | |
768da3db | 736 | dev->board.has_ir_i2c = 0; |
29b05e22 | 737 | dev_warn(&dev->intf->dev, |
ce8591ff | 738 | "No i2c IR remote control device found.\n"); |
768da3db FS |
739 | return -ENODEV; |
740 | } | |
8303dc99 MCC |
741 | } |
742 | ||
08cc05e4 | 743 | if (!dev->board.ir_codes && !dev->board.has_ir_i2c) { |
950b0f5a | 744 | /* No remote control support */ |
29b05e22 | 745 | dev_warn(&dev->intf->dev, |
ce8591ff | 746 | "Remote control support is not available for this card.\n"); |
950b0f5a | 747 | return 0; |
a924a499 MCC |
748 | } |
749 | ||
29b05e22 | 750 | dev_info(&dev->intf->dev, "Registering input extension\n"); |
9634614f | 751 | |
950b0f5a | 752 | ir = kzalloc(sizeof(*ir), GFP_KERNEL); |
34d7c248 DC |
753 | if (!ir) |
754 | return -ENOMEM; | |
0f7499fd | 755 | rc = rc_allocate_device(RC_DRIVER_SCANCODE); |
34d7c248 | 756 | if (!rc) |
2f5741aa | 757 | goto error; |
950b0f5a MCC |
758 | |
759 | /* record handles to ourself */ | |
760 | ir->dev = dev; | |
761 | dev->ir = ir; | |
d8b4b582 | 762 | ir->rc = rc; |
950b0f5a | 763 | |
d8b4b582 | 764 | rc->priv = ir; |
d8b4b582 DH |
765 | rc->open = em28xx_ir_start; |
766 | rc->close = em28xx_ir_stop; | |
c373cabf | 767 | |
768da3db FS |
768 | if (dev->board.has_ir_i2c) { /* external i2c device */ |
769 | switch (dev->model) { | |
770 | case EM2800_BOARD_TERRATEC_CINERGY_200: | |
771 | case EM2820_BOARD_TERRATEC_CINERGY_250: | |
772 | rc->map_name = RC_MAP_EM_TERRATEC; | |
773 | ir->get_key_i2c = em28xx_get_key_terratec; | |
774 | break; | |
775 | case EM2820_BOARD_PINNACLE_USB_2: | |
776 | rc->map_name = RC_MAP_PINNACLE_GREY; | |
777 | ir->get_key_i2c = em28xx_get_key_pinnacle_usb_grey; | |
778 | break; | |
779 | case EM2820_BOARD_HAUPPAUGE_WINTV_USB_2: | |
780 | rc->map_name = RC_MAP_HAUPPAUGE; | |
781 | ir->get_key_i2c = em28xx_get_key_em_haup; | |
6d741bfe | 782 | rc->allowed_protocols = RC_PROTO_BIT_RC5; |
768da3db FS |
783 | break; |
784 | case EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE: | |
785 | rc->map_name = RC_MAP_WINFAST_USBII_DELUXE; | |
786 | ir->get_key_i2c = em28xx_get_key_winfast_usbii_deluxe; | |
787 | break; | |
788 | default: | |
789 | err = -ENODEV; | |
790 | goto error; | |
791 | } | |
792 | ||
08cc05e4 | 793 | ir->i2c_client = kzalloc(sizeof(*ir->i2c_client), GFP_KERNEL); |
78e719a5 FS |
794 | if (!ir->i2c_client) |
795 | goto error; | |
796 | ir->i2c_client->adapter = &ir->dev->i2c_adap[dev->def_i2c_bus]; | |
797 | ir->i2c_client->addr = i2c_rc_dev_addr; | |
798 | ir->i2c_client->flags = 0; | |
799 | /* NOTE: all other fields of i2c_client are unused */ | |
768da3db FS |
800 | } else { /* internal device */ |
801 | switch (dev->chip_id) { | |
802 | case CHIP_ID_EM2860: | |
803 | case CHIP_ID_EM2883: | |
6d741bfe SY |
804 | rc->allowed_protocols = RC_PROTO_BIT_RC5 | |
805 | RC_PROTO_BIT_NEC; | |
768da3db FS |
806 | ir->get_key = default_polling_getkey; |
807 | break; | |
808 | case CHIP_ID_EM2884: | |
809 | case CHIP_ID_EM2874: | |
810 | case CHIP_ID_EM28174: | |
9f1d0bda | 811 | case CHIP_ID_EM28178: |
768da3db | 812 | ir->get_key = em2874_polling_getkey; |
6d741bfe SY |
813 | rc->allowed_protocols = RC_PROTO_BIT_RC5 | |
814 | RC_PROTO_BIT_NEC | RC_PROTO_BIT_NECX | | |
815 | RC_PROTO_BIT_NEC32 | RC_PROTO_BIT_RC6_0; | |
768da3db FS |
816 | break; |
817 | default: | |
818 | err = -ENODEV; | |
819 | goto error; | |
820 | } | |
821 | ||
822 | rc->change_protocol = em28xx_ir_change_protocol; | |
823 | rc->map_name = dev->board.ir_codes; | |
824 | ||
825 | /* By default, keep protocol field untouched */ | |
6d741bfe SY |
826 | rc_proto = RC_PROTO_BIT_UNKNOWN; |
827 | err = em28xx_ir_change_protocol(rc, &rc_proto); | |
768da3db FS |
828 | if (err) |
829 | goto error; | |
0dae8839 MCC |
830 | } |
831 | ||
4b92253a DH |
832 | /* This is how often we ask the chip for IR information */ |
833 | ir->polling = 100; /* ms */ | |
834 | ||
a924a499 | 835 | /* init input device */ |
ce8591ff | 836 | snprintf(ir->name, sizeof(ir->name), "%s IR", |
29b05e22 | 837 | dev_name(&dev->intf->dev)); |
a924a499 | 838 | |
c6d48134 | 839 | usb_make_path(udev, ir->phys, sizeof(ir->phys)); |
a924a499 MCC |
840 | strlcat(ir->phys, "/input0", sizeof(ir->phys)); |
841 | ||
518f4b26 | 842 | rc->device_name = ir->name; |
d8b4b582 DH |
843 | rc->input_phys = ir->phys; |
844 | rc->input_id.bustype = BUS_USB; | |
845 | rc->input_id.version = 1; | |
c6d48134 MCC |
846 | rc->input_id.vendor = le16_to_cpu(udev->descriptor.idVendor); |
847 | rc->input_id.product = le16_to_cpu(udev->descriptor.idProduct); | |
29b05e22 | 848 | rc->dev.parent = &dev->intf->dev; |
d8b4b582 | 849 | rc->driver_name = MODULE_NAME; |
a924a499 MCC |
850 | |
851 | /* all done */ | |
d8b4b582 | 852 | err = rc_register_device(rc); |
a924a499 | 853 | if (err) |
2f5741aa | 854 | goto error; |
a924a499 | 855 | |
1250a85b | 856 | dev_info(&dev->intf->dev, "Input extension successfully initialized\n"); |
9634614f | 857 | |
a924a499 | 858 | return 0; |
d8b4b582 | 859 | |
2f5741aa | 860 | error: |
78e719a5 | 861 | kfree(ir->i2c_client); |
a924a499 | 862 | dev->ir = NULL; |
d8b4b582 | 863 | rc_free_device(rc); |
a924a499 MCC |
864 | kfree(ir); |
865 | return err; | |
866 | } | |
867 | ||
f4d4e765 | 868 | static int em28xx_ir_fini(struct em28xx *dev) |
a924a499 MCC |
869 | { |
870 | struct em28xx_IR *ir = dev->ir; | |
871 | ||
822b8dea MCC |
872 | if (dev->is_audio_only) { |
873 | /* Shouldn't initialize IR for this interface */ | |
874 | return 0; | |
875 | } | |
876 | ||
29b05e22 | 877 | dev_info(&dev->intf->dev, "Closing input extension\n"); |
aa929ad7 | 878 | |
f5222609 | 879 | em28xx_shutdown_buttons(dev); |
2fd6f8d1 | 880 | |
a924a499 MCC |
881 | /* skip detach on non attached boards */ |
882 | if (!ir) | |
47677e51 | 883 | goto ref_put; |
a924a499 | 884 | |
83f56f7c | 885 | rc_unregister_device(ir->rc); |
a924a499 | 886 | |
78e719a5 FS |
887 | kfree(ir->i2c_client); |
888 | ||
a924a499 | 889 | /* done */ |
6d514774 | 890 | kfree(ir); |
a924a499 | 891 | dev->ir = NULL; |
47677e51 MCC |
892 | |
893 | ref_put: | |
894 | kref_put(&dev->ref, em28xx_free_device); | |
895 | ||
a924a499 MCC |
896 | return 0; |
897 | } | |
898 | ||
5025076a SK |
899 | static int em28xx_ir_suspend(struct em28xx *dev) |
900 | { | |
901 | struct em28xx_IR *ir = dev->ir; | |
902 | ||
903 | if (dev->is_audio_only) | |
904 | return 0; | |
905 | ||
29b05e22 | 906 | dev_info(&dev->intf->dev, "Suspending input extension\n"); |
5025076a SK |
907 | if (ir) |
908 | cancel_delayed_work_sync(&ir->work); | |
909 | cancel_delayed_work_sync(&dev->buttons_query_work); | |
08cc05e4 MCC |
910 | /* |
911 | * is canceling delayed work sufficient or does the rc event | |
912 | * kthread needs stopping? kthread is stopped in | |
913 | * ir_raw_event_unregister() | |
914 | */ | |
5025076a SK |
915 | return 0; |
916 | } | |
917 | ||
918 | static int em28xx_ir_resume(struct em28xx *dev) | |
919 | { | |
920 | struct em28xx_IR *ir = dev->ir; | |
921 | ||
922 | if (dev->is_audio_only) | |
923 | return 0; | |
924 | ||
29b05e22 | 925 | dev_info(&dev->intf->dev, "Resuming input extension\n"); |
08cc05e4 MCC |
926 | /* |
927 | * if suspend calls ir_raw_event_unregister(), the should call | |
928 | * ir_raw_event_register() | |
929 | */ | |
5025076a SK |
930 | if (ir) |
931 | schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling)); | |
932 | if (dev->num_button_polling_addresses) | |
933 | schedule_delayed_work(&dev->buttons_query_work, | |
fdf1bc9f | 934 | msecs_to_jiffies(dev->button_polling_interval)); |
5025076a SK |
935 | return 0; |
936 | } | |
937 | ||
f4d4e765 EG |
938 | static struct em28xx_ops rc_ops = { |
939 | .id = EM28XX_RC, | |
940 | .name = "Em28xx Input Extension", | |
941 | .init = em28xx_ir_init, | |
942 | .fini = em28xx_ir_fini, | |
5025076a SK |
943 | .suspend = em28xx_ir_suspend, |
944 | .resume = em28xx_ir_resume, | |
f4d4e765 EG |
945 | }; |
946 | ||
947 | static int __init em28xx_rc_register(void) | |
948 | { | |
949 | return em28xx_register_extension(&rc_ops); | |
950 | } | |
951 | ||
952 | static void __exit em28xx_rc_unregister(void) | |
953 | { | |
954 | em28xx_unregister_extension(&rc_ops); | |
955 | } | |
956 | ||
f22e9e71 | 957 | MODULE_LICENSE("GPL v2"); |
37e59f87 | 958 | MODULE_AUTHOR("Mauro Carvalho Chehab"); |
d8992b09 MCC |
959 | MODULE_DESCRIPTION(DRIVER_DESC " - input interface"); |
960 | MODULE_VERSION(EM28XX_VERSION); | |
f4d4e765 EG |
961 | |
962 | module_init(em28xx_rc_register); | |
963 | module_exit(em28xx_rc_unregister); |