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V4L/DVB (6970): Request snd-usb-audio for devices with Audio Class support
[deliverable/linux.git] / drivers / media / video / saa7134 / saa7134-input.c
CommitLineData
1da177e4 1/*
1da177e4
LT		 2 *
3 * handle saa7134 IR remotes via linux kernel input layer.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
20
21#include <linux/module.h>
1da177e4
LT		 22#include <linux/init.h>
23#include <linux/delay.h>
1da177e4
LT		 24#include <linux/interrupt.h>
25#include <linux/input.h>
26
27#include "saa7134-reg.h"
28#include "saa7134.h"
29
30static unsigned int disable_ir = 0;
31module_param(disable_ir, int, 0444);
32MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
33
34static unsigned int ir_debug = 0;
35module_param(ir_debug, int, 0644);
36MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
37
b93eedb6
SP		 38static int pinnacle_remote = 0;
39module_param(pinnacle_remote, int, 0644); /* Choose Pinnacle PCTV remote */
40MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
41
c408a6f6 42static int ir_rc5_remote_gap = 885;
9160723e 43module_param(ir_rc5_remote_gap, int, 0644);
c408a6f6 44static int ir_rc5_key_timeout = 115;
9160723e
HP		 45module_param(ir_rc5_key_timeout, int, 0644);
46
0938e319
P		 47static int repeat_delay = 500;
48module_param(repeat_delay, int, 0644);
49MODULE_PARM_DESC(repeat_delay, "delay before key repeat started");
50static int repeat_period = 33;
51module_param(repeat_period, int, 0644);
ac9bb7f5 52MODULE_PARM_DESC(repeat_period, "repeat period between "
0938e319
P		 53 "keypresses when key is down");
54
1da177e4
LT		 55#define dprintk(fmt, arg...) if (ir_debug) \
56 printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
ac9cd976
RC		 57#define i2cdprintk(fmt, arg...) if (ir_debug) \
58 printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
1da177e4 59
9160723e
HP		 60/** rc5 functions */
61static int saa7134_rc5_irq(struct saa7134_dev *dev);
62
ac9cd976 63/* -------------------- GPIO generic keycode builder -------------------- */
1da177e4
LT		 64
65static int build_key(struct saa7134_dev *dev)
66{
9160723e 67 struct card_ir *ir = dev->remote;
1da177e4
LT		 68 u32 gpio, data;
69
0938e319
P		 70 /* here comes the additional handshake steps for some cards */
71 switch (dev->board) {
72 case SAA7134_BOARD_GOTVIEW_7135:
73 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
74 saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
75 break;
76 }
1da177e4
LT		 77 /* rising SAA7134_GPIO_GPRESCAN reads the status */
78 saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
79 saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
80
81 gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
4ac97914
MCC		 82 if (ir->polling) {
83 if (ir->last_gpio == gpio)
84 return 0;
85 ir->last_gpio = gpio;
86 }
1da177e4 87
4ac97914 88 data = ir_extract_bits(gpio, ir->mask_keycode);
1da177e4
LT		 89 dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
90 gpio, ir->mask_keycode, data);
91
0602fbb2
PM		 92 if (ir->polling) {
93 if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) ||
94 (ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
95 ir_input_keydown(ir->dev, &ir->ir, data, data);
96 } else {
97 ir_input_nokey(ir->dev, &ir->ir);
98 }
1da177e4 99 }
0602fbb2
PM		 100 else { /* IRQ driven mode - handle key press and release in one go */
101 if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) ||
102 (ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
103 ir_input_keydown(ir->dev, &ir->ir, data, data);
104 ir_input_nokey(ir->dev, &ir->ir);
105 }
106 }
107
1da177e4
LT		 108 return 0;
109}
110
ac9cd976
RC		 111/* --------------------- Chip specific I2C key builders ----------------- */
112
113static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
114{
115 unsigned char b;
116
117 /* poll IR chip */
118 if (1 != i2c_master_recv(&ir->c,&b,1)) {
119 i2cdprintk("read error\n");
120 return -EIO;
121 }
122
123 /* no button press */
124 if (b==0)
125 return 0;
126
127 /* repeating */
128 if (b & 0x80)
129 return 1;
130
131 *ir_key = b;
132 *ir_raw = b;
133 return 1;
134}
135
177aaaf8
TG		 136static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
137{
138 unsigned char buf[5], cod4, code3, code4;
139
140 /* poll IR chip */
141 if (5 != i2c_master_recv(&ir->c,buf,5))
142 return -EIO;
143
144 cod4 = buf[4];
145 code4 = (cod4 >> 2);
146 code3 = buf[3];
147 if (code3 == 0)
148 /* no key pressed */
149 return 0;
150
151 /* return key */
152 *ir_key = code4;
153 *ir_raw = code4;
154 return 1;
155}
156
1da177e4
LT		 157void saa7134_input_irq(struct saa7134_dev *dev)
158{
9160723e 159 struct card_ir *ir = dev->remote;
1da177e4 160
9160723e 161 if (!ir->polling && !ir->rc5_gpio) {
1da177e4 162 build_key(dev);
9160723e
HP		 163 } else if (ir->rc5_gpio) {
164 saa7134_rc5_irq(dev);
165 }
1da177e4
LT		 166}
167
168static void saa7134_input_timer(unsigned long data)
169{
b4ba7884 170 struct saa7134_dev *dev = (struct saa7134_dev *)data;
9160723e 171 struct card_ir *ir = dev->remote;
1da177e4
LT		 172
173 build_key(dev);
b4ba7884 174 mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
1da177e4
LT		 175}
176
c458473e 177void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
b07b4783
DT		 178{
179 if (ir->polling) {
b4ba7884
DT		 180 setup_timer(&ir->timer, saa7134_input_timer,
181 (unsigned long)dev);
b07b4783
DT		 182 ir->timer.expires = jiffies + HZ;
183 add_timer(&ir->timer);
9160723e
HP		 184 } else if (ir->rc5_gpio) {
185 /* set timer_end for code completion */
186 init_timer(&ir->timer_end);
187 ir->timer_end.function = ir_rc5_timer_end;
188 ir->timer_end.data = (unsigned long)ir;
189 init_timer(&ir->timer_keyup);
190 ir->timer_keyup.function = ir_rc5_timer_keyup;
191 ir->timer_keyup.data = (unsigned long)ir;
192 ir->shift_by = 2;
193 ir->start = 0x2;
194 ir->addr = 0x17;
195 ir->rc5_key_timeout = ir_rc5_key_timeout;
196 ir->rc5_remote_gap = ir_rc5_remote_gap;
b07b4783
DT		 197 }
198}
199
c458473e 200void saa7134_ir_stop(struct saa7134_dev *dev)
b07b4783
DT		 201{
202 if (dev->remote->polling)
203 del_timer_sync(&dev->remote->timer);
204}
205
1da177e4
LT		 206int saa7134_input_init1(struct saa7134_dev *dev)
207{
9160723e 208 struct card_ir *ir;
b7df3910 209 struct input_dev *input_dev;
1da177e4
LT		 210 IR_KEYTAB_TYPE *ir_codes = NULL;
211 u32 mask_keycode = 0;
212 u32 mask_keydown = 0;
213 u32 mask_keyup = 0;
214 int polling = 0;
9160723e 215 int rc5_gpio = 0;
1da177e4 216 int ir_type = IR_TYPE_OTHER;
b07b4783 217 int err;
1da177e4 218
cb2444df 219 if (dev->has_remote != SAA7134_REMOTE_GPIO)
1da177e4
LT		 220 return -ENODEV;
221 if (disable_ir)
222 return -ENODEV;
223
224 /* detect & configure */
225 switch (dev->board) {
226 case SAA7134_BOARD_FLYVIDEO2000:
227 case SAA7134_BOARD_FLYVIDEO3000:
4ac97914 228 case SAA7134_BOARD_FLYTVPLATINUM_FM:
6af90ab5 229 case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
4c0f631e 230 ir_codes = ir_codes_flyvideo;
1da177e4
LT		 231 mask_keycode = 0xEC00000;
232 mask_keydown = 0x0040000;
233 break;
234 case SAA7134_BOARD_CINERGY400:
235 case SAA7134_BOARD_CINERGY600:
236 case SAA7134_BOARD_CINERGY600_MK3:
4c0f631e 237 ir_codes = ir_codes_cinergy;
1da177e4
LT		 238 mask_keycode = 0x00003f;
239 mask_keyup = 0x040000;
240 break;
241 case SAA7134_BOARD_ECS_TVP3XP:
242 case SAA7134_BOARD_ECS_TVP3XP_4CB5:
4c0f631e 243 ir_codes = ir_codes_eztv;
330a115a
MCC		 244 mask_keycode = 0x00017c;
245 mask_keyup = 0x000002;
1da177e4 246 polling = 50; // ms
330a115a
MCC		 247 break;
248 case SAA7134_BOARD_KWORLD_XPERT:
1da177e4 249 case SAA7134_BOARD_AVACSSMARTTV:
b639f9d2 250 ir_codes = ir_codes_pixelview;
1da177e4
LT		 251 mask_keycode = 0x00001F;
252 mask_keyup = 0x000020;
253 polling = 50; // ms
254 break;
255 case SAA7134_BOARD_MD2819:
ac19ecc6 256 case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
1da177e4
LT		 257 case SAA7134_BOARD_AVERMEDIA_305:
258 case SAA7134_BOARD_AVERMEDIA_307:
ac19ecc6
MCC		 259 case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
260 case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
3ac706d2 261 case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
ac19ecc6 262 case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
d2761f22 263 case SAA7134_BOARD_AVERMEDIA_M102:
b639f9d2 264 ir_codes = ir_codes_avermedia;
1da177e4
LT		 265 mask_keycode = 0x0007C8;
266 mask_keydown = 0x000010;
267 polling = 50; // ms
268 /* Set GPIO pin2 to high to enable the IR controller */
269 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
270 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
271 break;
450efcfd 272 case SAA7134_BOARD_AVERMEDIA_777:
29e0f1a1 273 case SAA7134_BOARD_AVERMEDIA_A16AR:
450efcfd 274 ir_codes = ir_codes_avermedia;
275 mask_keycode = 0x02F200;
276 mask_keydown = 0x000400;
277 polling = 50; // ms
278 /* Without this we won't receive key up events */
279 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
280 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
4dd7406e 281 break;
4ac97914 282 case SAA7134_BOARD_KWORLD_TERMINATOR:
b639f9d2 283 ir_codes = ir_codes_pixelview;
dc2286cf
JW		 284 mask_keycode = 0x00001f;
285 mask_keyup = 0x000060;
286 polling = 50; // ms
287 break;
ac19ecc6
MCC		 288 case SAA7134_BOARD_MANLI_MTV001:
289 case SAA7134_BOARD_MANLI_MTV002:
a8ff417e 290 case SAA7134_BOARD_BEHOLD_409FM:
4c0f631e 291 ir_codes = ir_codes_manli;
ac19ecc6
MCC		 292 mask_keycode = 0x001f00;
293 mask_keyup = 0x004000;
ac19ecc6
MCC		 294 polling = 50; // ms
295 break;
17ce1ff9 296 case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
4c0f631e 297 ir_codes = ir_codes_pctv_sedna;
c3d93192
PM		 298 mask_keycode = 0x001f00;
299 mask_keyup = 0x004000;
300 polling = 50; // ms
301 break;
4ac97914 302 case SAA7134_BOARD_GOTVIEW_7135:
4c0f631e 303 ir_codes = ir_codes_gotview7135;
0938e319 304 mask_keycode = 0x0003CC;
6b961440 305 mask_keydown = 0x000010;
0938e319
P		 306 polling = 5; /* ms */
307 saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
6b961440 308 break;
1da177e4 309 case SAA7134_BOARD_VIDEOMATE_TV_PVR:
2a9a9a84 310 case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
330a115a 311 case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
4c0f631e 312 ir_codes = ir_codes_videomate_tv_pvr;
1da177e4
LT		 313 mask_keycode = 0x00003F;
314 mask_keyup = 0x400000;
315 polling = 50; // ms
316 break;
b04c1baf
MM		 317 case SAA7134_BOARD_PROTEUS_2309:
318 ir_codes = ir_codes_proteus_2309;
319 mask_keycode = 0x00007F;
320 mask_keyup = 0x000080;
321 polling = 50; // ms
322 break;
4ac97914
MCC		 323 case SAA7134_BOARD_VIDEOMATE_DVBT_300:
324 case SAA7134_BOARD_VIDEOMATE_DVBT_200:
4c0f631e 325 ir_codes = ir_codes_videomate_tv_pvr;
fea095fe
NS		 326 mask_keycode = 0x003F00;
327 mask_keyup = 0x040000;
328 break;
f5c965ab 329 case SAA7134_BOARD_FLYDVBS_LR300:
3d8466ec 330 case SAA7134_BOARD_FLYDVBT_LR301:
a8029170 331 case SAA7134_BOARD_FLYDVBTDUO:
3d8466ec
GG		 332 ir_codes = ir_codes_flydvb;
333 mask_keycode = 0x0001F00;
334 mask_keydown = 0x0040000;
335 break;
9160723e 336 case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
904ab884 337 case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
9160723e
HP		 338 ir_codes = ir_codes_asus_pc39;
339 mask_keydown = 0x0040000;
340 rc5_gpio = 1;
341 break;
c36c459a
JPS		 342 case SAA7134_BOARD_ENCORE_ENLTV:
343 case SAA7134_BOARD_ENCORE_ENLTV_FM:
344 ir_codes = ir_codes_encore_enltv;
345 mask_keycode = 0x00007f;
346 mask_keyup = 0x040000;
347 polling = 50; // ms
348 break;
480f75ac
TW		 349 case SAA7134_BOARD_10MOONSTVMASTER3:
350 ir_codes = ir_codes_encore_enltv;
351 mask_keycode = 0x5f80000;
352 mask_keyup = 0x8000000;
353 polling = 50; //ms
354 break;
1da177e4
LT		 355 }
356 if (NULL == ir_codes) {
357 printk("%s: Oops: IR config error [card=%d]\n",
358 dev->name, dev->board);
359 return -ENODEV;
360 }
361
b7df3910
DT		 362 ir = kzalloc(sizeof(*ir), GFP_KERNEL);
363 input_dev = input_allocate_device();
364 if (!ir || !input_dev) {
b07b4783
DT		 365 err = -ENOMEM;
366 goto err_out_free;
b7df3910 367 }
1da177e4 368
d271d1c2
DT		 369 ir->dev = input_dev;
370
1da177e4
LT		 371 /* init hardware-specific stuff */
372 ir->mask_keycode = mask_keycode;
373 ir->mask_keydown = mask_keydown;
374 ir->mask_keyup = mask_keyup;
4ac97914 375 ir->polling = polling;
9160723e 376 ir->rc5_gpio = rc5_gpio;
1da177e4
LT		 377
378 /* init input device */
379 snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
380 saa7134_boards[dev->board].name);
381 snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
382 pci_name(dev->pci));
383
b7df3910
DT		 384 ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
385 input_dev->name = ir->name;
386 input_dev->phys = ir->phys;
387 input_dev->id.bustype = BUS_PCI;
388 input_dev->id.version = 1;
1da177e4 389 if (dev->pci->subsystem_vendor) {
b7df3910
DT		 390 input_dev->id.vendor = dev->pci->subsystem_vendor;
391 input_dev->id.product = dev->pci->subsystem_device;
1da177e4 392 } else {
b7df3910
DT		 393 input_dev->id.vendor = dev->pci->vendor;
394 input_dev->id.product = dev->pci->device;
1da177e4 395 }
2c8a3a33 396 input_dev->dev.parent = &dev->pci->dev;
1da177e4 397
1da177e4 398 dev->remote = ir;
b07b4783
DT		 399 saa7134_ir_start(dev, ir);
400
401 err = input_register_device(ir->dev);
402 if (err)
403 goto err_out_stop;
1da177e4 404
0938e319
P		 405 /* the remote isn't as bouncy as a keyboard */
406 ir->dev->rep[REP_DELAY] = repeat_delay;
407 ir->dev->rep[REP_PERIOD] = repeat_period;
408
1da177e4 409 return 0;
b07b4783
DT		 410
411 err_out_stop:
412 saa7134_ir_stop(dev);
413 dev->remote = NULL;
414 err_out_free:
415 input_free_device(input_dev);
416 kfree(ir);
417 return err;
1da177e4
LT		 418}
419
420void saa7134_input_fini(struct saa7134_dev *dev)
421{
422 if (NULL == dev->remote)
423 return;
424
b07b4783 425 saa7134_ir_stop(dev);
b7df3910 426 input_unregister_device(dev->remote->dev);
1da177e4
LT		 427 kfree(dev->remote);
428 dev->remote = NULL;
429}
430
ac9cd976
RC		 431void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir)
432{
433 if (disable_ir) {
cb2444df 434 dprintk("Found supported i2c remote, but IR has been disabled\n");
ac9cd976
RC		 435 ir->get_key=NULL;
436 return;
437 }
438
439 switch (dev->board) {
440 case SAA7134_BOARD_PINNACLE_PCTV_110i:
eb591af3 441 case SAA7134_BOARD_PINNACLE_PCTV_310i:
ac9cd976 442 snprintf(ir->c.name, sizeof(ir->c.name), "Pinnacle PCTV");
b93eedb6
SP		 443 if (pinnacle_remote == 0) {
444 ir->get_key = get_key_pinnacle_color;
445 ir->ir_codes = ir_codes_pinnacle_color;
446 } else {
447 ir->get_key = get_key_pinnacle_grey;
448 ir->ir_codes = ir_codes_pinnacle_grey;
449 }
ac9cd976
RC		 450 break;
451 case SAA7134_BOARD_UPMOST_PURPLE_TV:
452 snprintf(ir->c.name, sizeof(ir->c.name), "Purple TV");
453 ir->get_key = get_key_purpletv;
454 ir->ir_codes = ir_codes_purpletv;
455 break;
177aaaf8
TG		 456 case SAA7134_BOARD_HAUPPAUGE_HVR1110:
457 snprintf(ir->c.name, sizeof(ir->c.name), "HVR 1110");
458 ir->get_key = get_key_hvr1110;
459 ir->ir_codes = ir_codes_hauppauge_new;
460 break;
ac9cd976
RC		 461 default:
462 dprintk("Shouldn't get here: Unknown board %x for I2C IR?\n",dev->board);
463 break;
464 }
465
466}
9160723e
HP		 467
468static int saa7134_rc5_irq(struct saa7134_dev *dev)
469{
470 struct card_ir *ir = dev->remote;
471 struct timeval tv;
472 u32 gap;
473 unsigned long current_jiffies, timeout;
474
475 /* get time of bit */
476 current_jiffies = jiffies;
477 do_gettimeofday(&tv);
478
479 /* avoid overflow with gap >1s */
480 if (tv.tv_sec - ir->base_time.tv_sec > 1) {
481 gap = 200000;
482 } else {
483 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
484 tv.tv_usec - ir->base_time.tv_usec;
485 }
486
487 /* active code => add bit */
488 if (ir->active) {
489 /* only if in the code (otherwise spurious IRQ or timer
490 late) */
491 if (ir->last_bit < 28) {
492 ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
493 ir_rc5_remote_gap;
494 ir->code |= 1 << ir->last_bit;
495 }
496 /* starting new code */
497 } else {
498 ir->active = 1;
499 ir->code = 0;
500 ir->base_time = tv;
501 ir->last_bit = 0;
502
503 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
504 mod_timer(&ir->timer_end, timeout);
505 }
506
507 return 1;
508}
509
1da177e4
LT		 510/* ----------------------------------------------------------------------
511 * Local variables:
512 * c-basic-offset: 8
513 * End:
514 */
Linux kernel - Deliverables
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