1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21#include "cx88.h"
22
23#include <linux/init.h>
24#include <linux/hrtimer.h>
25#include <linux/pci.h>
26#include <linux/slab.h>
27#include <linux/module.h>
28
29#include <media/rc-core.h>
30
31#define MODULE_NAME "cx88xx"
32
33
34
35struct cx88_IR {
36 struct cx88_core *core;
37 struct rc_dev *dev;
38
39 int users;
40
41 char name[32];
42 char phys[32];
43
44
45 u32 sampling;
46
47
48 int polling;
49 struct hrtimer timer;
50 u32 gpio_addr;
51 u32 last_gpio;
52 u32 mask_keycode;
53 u32 mask_keydown;
54 u32 mask_keyup;
55};
56
57static unsigned int ir_samplerate = 4;
58module_param(ir_samplerate, uint, 0444);
59MODULE_PARM_DESC(ir_samplerate, "IR samplerate in kHz, 1 - 20, default 4");
60
61static int ir_debug;
62module_param(ir_debug, int, 0644);
63MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
64
65#define ir_dprintk(fmt, arg...) do { \
66 if (ir_debug) \
67 printk(KERN_DEBUG "%s IR: " fmt, ir->core->name, ##arg);\
68} while (0)
69
70#define dprintk(fmt, arg...) do { \
71 if (ir_debug) \
72 printk(KERN_DEBUG "cx88 IR: " fmt, ##arg); \
73} while (0)
74
75
76
77static void cx88_ir_handle_key(struct cx88_IR *ir)
78{
79 struct cx88_core *core = ir->core;
80 u32 gpio, data, auxgpio;
81
82
83 gpio = cx_read(ir->gpio_addr);
84 switch (core->boardnr) {
85 case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
86
87
88
89
90
91
92
93
94
95
96
97
98
99 auxgpio = cx_read(MO_GP1_IO);
100
101 gpio = (gpio & 0x7fd) + (auxgpio & 0xef);
102 break;
103 case CX88_BOARD_WINFAST_DTV1000:
104 case CX88_BOARD_WINFAST_DTV1800H:
105 case CX88_BOARD_WINFAST_DTV1800H_XC4000:
106 case CX88_BOARD_WINFAST_DTV2000H_PLUS:
107 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
108 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36:
109 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43:
110 gpio = (gpio & 0x6ff) | ((cx_read(MO_GP1_IO) << 8) & 0x900);
111 auxgpio = gpio;
112 break;
113 default:
114 auxgpio = gpio;
115 }
116 if (ir->polling) {
117 if (ir->last_gpio == auxgpio)
118 return;
119 ir->last_gpio = auxgpio;
120 }
121
122
123 data = ir_extract_bits(gpio, ir->mask_keycode);
124 ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n",
125 gpio, data,
126 ir->polling ? "poll" : "irq",
127 (gpio & ir->mask_keydown) ? " down" : "",
128 (gpio & ir->mask_keyup) ? " up" : "");
129
130 if (ir->core->boardnr == CX88_BOARD_NORWOOD_MICRO) {
131 u32 gpio_key = cx_read(MO_GP0_IO);
132
133 data = (data << 4) | ((gpio_key & 0xf0) >> 4);
134
135 rc_keydown(ir->dev, RC_PROTO_UNKNOWN, data, 0);
136
137 } else if (ir->core->boardnr == CX88_BOARD_PROLINK_PLAYTVPVR ||
138 ir->core->boardnr == CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO) {
139
140 u16 addr;
141 u8 cmd;
142 u32 scancode;
143
144 addr = (data >> 8) & 0xffff;
145 cmd = (data >> 0) & 0x00ff;
146 scancode = RC_SCANCODE_NECX(addr, cmd);
147
148 if (0 == (gpio & ir->mask_keyup))
149 rc_keydown_notimeout(ir->dev, RC_PROTO_NECX, scancode,
150 0);
151 else
152 rc_keyup(ir->dev);
153
154 } else if (ir->mask_keydown) {
155
156 if (gpio & ir->mask_keydown)
157 rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
158 0);
159 else
160 rc_keyup(ir->dev);
161
162 } else if (ir->mask_keyup) {
163
164 if (0 == (gpio & ir->mask_keyup))
165 rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
166 0);
167 else
168 rc_keyup(ir->dev);
169
170 } else {
171
172 rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data, 0);
173 rc_keyup(ir->dev);
174 }
175}
176
177static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer)
178{
179 unsigned long missed;
180 struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer);
181
182 cx88_ir_handle_key(ir);
183 missed = hrtimer_forward_now(&ir->timer,
184 ktime_set(0, ir->polling * 1000000));
185 if (missed > 1)
186 ir_dprintk("Missed ticks %ld\n", missed - 1);
187
188 return HRTIMER_RESTART;
189}
190
191static int __cx88_ir_start(void *priv)
192{
193 struct cx88_core *core = priv;
194 struct cx88_IR *ir;
195
196 if (!core || !core->ir)
197 return -EINVAL;
198
199 ir = core->ir;
200
201 if (ir->polling) {
202 hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
203 ir->timer.function = cx88_ir_work;
204 hrtimer_start(&ir->timer,
205 ktime_set(0, ir->polling * 1000000),
206 HRTIMER_MODE_REL);
207 }
208 if (ir->sampling) {
209 core->pci_irqmask |= PCI_INT_IR_SMPINT;
210 cx_write(MO_DDS_IO, 0x33F286 * ir_samplerate);
211 cx_write(MO_DDSCFG_IO, 0x5);
212 }
213 return 0;
214}
215
216static void __cx88_ir_stop(void *priv)
217{
218 struct cx88_core *core = priv;
219 struct cx88_IR *ir;
220
221 if (!core || !core->ir)
222 return;
223
224 ir = core->ir;
225 if (ir->sampling) {
226 cx_write(MO_DDSCFG_IO, 0x0);
227 core->pci_irqmask &= ~PCI_INT_IR_SMPINT;
228 }
229
230 if (ir->polling)
231 hrtimer_cancel(&ir->timer);
232}
233
234int cx88_ir_start(struct cx88_core *core)
235{
236 if (core->ir->users)
237 return __cx88_ir_start(core);
238
239 return 0;
240}
241EXPORT_SYMBOL(cx88_ir_start);
242
243void cx88_ir_stop(struct cx88_core *core)
244{
245 if (core->ir->users)
246 __cx88_ir_stop(core);
247}
248EXPORT_SYMBOL(cx88_ir_stop);
249
250static int cx88_ir_open(struct rc_dev *rc)
251{
252 struct cx88_core *core = rc->priv;
253
254 core->ir->users++;
255 return __cx88_ir_start(core);
256}
257
258static void cx88_ir_close(struct rc_dev *rc)
259{
260 struct cx88_core *core = rc->priv;
261
262 core->ir->users--;
263 if (!core->ir->users)
264 __cx88_ir_stop(core);
265}
266
267
268
269int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
270{
271 struct cx88_IR *ir;
272 struct rc_dev *dev;
273 char *ir_codes = NULL;
274 u64 rc_proto = RC_PROTO_BIT_OTHER;
275 int err = -ENOMEM;
276 u32 hardware_mask = 0;
277
278
279
280 ir = kzalloc(sizeof(*ir), GFP_KERNEL);
281 dev = rc_allocate_device(RC_DRIVER_IR_RAW);
282 if (!ir || !dev)
283 goto err_out_free;
284
285 ir->dev = dev;
286
287
288 switch (core->boardnr) {
289 case CX88_BOARD_DNTV_LIVE_DVB_T:
290 case CX88_BOARD_KWORLD_DVB_T:
291 case CX88_BOARD_KWORLD_DVB_T_CX22702:
292 ir_codes = RC_MAP_DNTV_LIVE_DVB_T;
293 ir->gpio_addr = MO_GP1_IO;
294 ir->mask_keycode = 0x1f;
295 ir->mask_keyup = 0x60;
296 ir->polling = 50;
297 break;
298 case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
299 ir_codes = RC_MAP_CINERGY_1400;
300 ir->sampling = 0xeb04;
301 break;
302 case CX88_BOARD_HAUPPAUGE:
303 case CX88_BOARD_HAUPPAUGE_DVB_T1:
304 case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
305 case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
306 case CX88_BOARD_HAUPPAUGE_HVR1100:
307 case CX88_BOARD_HAUPPAUGE_HVR3000:
308 case CX88_BOARD_HAUPPAUGE_HVR4000:
309 case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
310 case CX88_BOARD_PCHDTV_HD3000:
311 case CX88_BOARD_PCHDTV_HD5500:
312 case CX88_BOARD_HAUPPAUGE_IRONLY:
313 ir_codes = RC_MAP_HAUPPAUGE;
314 ir->sampling = 1;
315 break;
316 case CX88_BOARD_WINFAST_DTV2000H:
317 case CX88_BOARD_WINFAST_DTV2000H_J:
318 case CX88_BOARD_WINFAST_DTV1800H:
319 case CX88_BOARD_WINFAST_DTV1800H_XC4000:
320 case CX88_BOARD_WINFAST_DTV2000H_PLUS:
321 ir_codes = RC_MAP_WINFAST;
322 ir->gpio_addr = MO_GP0_IO;
323 ir->mask_keycode = 0x8f8;
324 ir->mask_keyup = 0x100;
325 ir->polling = 50;
326 break;
327 case CX88_BOARD_WINFAST2000XP_EXPERT:
328 case CX88_BOARD_WINFAST_DTV1000:
329 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
330 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36:
331 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43:
332 ir_codes = RC_MAP_WINFAST;
333 ir->gpio_addr = MO_GP0_IO;
334 ir->mask_keycode = 0x8f8;
335 ir->mask_keyup = 0x100;
336 ir->polling = 1;
337 break;
338 case CX88_BOARD_IODATA_GVBCTV7E:
339 ir_codes = RC_MAP_IODATA_BCTV7E;
340 ir->gpio_addr = MO_GP0_IO;
341 ir->mask_keycode = 0xfd;
342 ir->mask_keydown = 0x02;
343 ir->polling = 5;
344 break;
345 case CX88_BOARD_PROLINK_PLAYTVPVR:
346 case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
347
348
349
350
351
352
353
354 ir_codes = RC_MAP_PIXELVIEW_MK12;
355 rc_proto = RC_PROTO_BIT_NECX;
356 ir->gpio_addr = MO_GP1_IO;
357 ir->mask_keyup = 0x80;
358 ir->polling = 10;
359 hardware_mask = 0x3f;
360 break;
361 case CX88_BOARD_PROLINK_PV_8000GT:
362 case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME:
363 ir_codes = RC_MAP_PIXELVIEW_NEW;
364 ir->gpio_addr = MO_GP1_IO;
365 ir->mask_keycode = 0x3f;
366 ir->mask_keyup = 0x80;
367 ir->polling = 1;
368 break;
369 case CX88_BOARD_KWORLD_LTV883:
370 ir_codes = RC_MAP_PIXELVIEW;
371 ir->gpio_addr = MO_GP1_IO;
372 ir->mask_keycode = 0x1f;
373 ir->mask_keyup = 0x60;
374 ir->polling = 1;
375 break;
376 case CX88_BOARD_ADSTECH_DVB_T_PCI:
377 ir_codes = RC_MAP_ADSTECH_DVB_T_PCI;
378 ir->gpio_addr = MO_GP1_IO;
379 ir->mask_keycode = 0xbf;
380 ir->mask_keyup = 0x40;
381 ir->polling = 50;
382 break;
383 case CX88_BOARD_MSI_TVANYWHERE_MASTER:
384 ir_codes = RC_MAP_MSI_TVANYWHERE;
385 ir->gpio_addr = MO_GP1_IO;
386 ir->mask_keycode = 0x1f;
387 ir->mask_keyup = 0x40;
388 ir->polling = 1;
389 break;
390 case CX88_BOARD_AVERTV_303:
391 case CX88_BOARD_AVERTV_STUDIO_303:
392 ir_codes = RC_MAP_AVERTV_303;
393 ir->gpio_addr = MO_GP2_IO;
394 ir->mask_keycode = 0xfb;
395 ir->mask_keydown = 0x02;
396 ir->polling = 50;
397 break;
398 case CX88_BOARD_OMICOM_SS4_PCI:
399 case CX88_BOARD_SATTRADE_ST4200:
400 case CX88_BOARD_TBS_8920:
401 case CX88_BOARD_TBS_8910:
402 case CX88_BOARD_PROF_7300:
403 case CX88_BOARD_PROF_7301:
404 case CX88_BOARD_PROF_6200:
405 ir_codes = RC_MAP_TBS_NEC;
406 ir->sampling = 0xff00;
407 break;
408 case CX88_BOARD_TEVII_S464:
409 case CX88_BOARD_TEVII_S460:
410 case CX88_BOARD_TEVII_S420:
411 ir_codes = RC_MAP_TEVII_NEC;
412 ir->sampling = 0xff00;
413 break;
414 case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
415 ir_codes = RC_MAP_DNTV_LIVE_DVBT_PRO;
416 ir->sampling = 0xff00;
417 break;
418 case CX88_BOARD_NORWOOD_MICRO:
419 ir_codes = RC_MAP_NORWOOD;
420 ir->gpio_addr = MO_GP1_IO;
421 ir->mask_keycode = 0x0e;
422 ir->mask_keyup = 0x80;
423 ir->polling = 50;
424 break;
425 case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
426 ir_codes = RC_MAP_NPGTECH;
427 ir->gpio_addr = MO_GP0_IO;
428 ir->mask_keycode = 0xfa;
429 ir->polling = 50;
430 break;
431 case CX88_BOARD_PINNACLE_PCTV_HD_800i:
432 ir_codes = RC_MAP_PINNACLE_PCTV_HD;
433 ir->sampling = 1;
434 break;
435 case CX88_BOARD_POWERCOLOR_REAL_ANGEL:
436 ir_codes = RC_MAP_POWERCOLOR_REAL_ANGEL;
437 ir->gpio_addr = MO_GP2_IO;
438 ir->mask_keycode = 0x7e;
439 ir->polling = 100;
440 break;
441 case CX88_BOARD_TWINHAN_VP1027_DVBS:
442 ir_codes = RC_MAP_TWINHAN_VP1027_DVBS;
443 ir->sampling = 0xff00;
444 break;
445 }
446
447 if (!ir_codes) {
448 err = -ENODEV;
449 goto err_out_free;
450 }
451
452
453
454
455
456
457
458
459
460
461
462
463
464 if (hardware_mask && !ir->mask_keycode)
465 ir->mask_keycode = hardware_mask;
466
467
468 snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name);
469 snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
470
471 dev->device_name = ir->name;
472 dev->input_phys = ir->phys;
473 dev->input_id.bustype = BUS_PCI;
474 dev->input_id.version = 1;
475 if (pci->subsystem_vendor) {
476 dev->input_id.vendor = pci->subsystem_vendor;
477 dev->input_id.product = pci->subsystem_device;
478 } else {
479 dev->input_id.vendor = pci->vendor;
480 dev->input_id.product = pci->device;
481 }
482 dev->dev.parent = &pci->dev;
483 dev->map_name = ir_codes;
484 dev->driver_name = MODULE_NAME;
485 dev->priv = core;
486 dev->open = cx88_ir_open;
487 dev->close = cx88_ir_close;
488 dev->scancode_mask = hardware_mask;
489
490 if (ir->sampling) {
491 dev->timeout = 10 * 1000 * 1000;
492 } else {
493 dev->driver_type = RC_DRIVER_SCANCODE;
494 dev->allowed_protocols = rc_proto;
495 }
496
497 ir->core = core;
498 core->ir = ir;
499
500
501 err = rc_register_device(dev);
502 if (err)
503 goto err_out_free;
504
505 return 0;
506
507err_out_free:
508 rc_free_device(dev);
509 core->ir = NULL;
510 kfree(ir);
511 return err;
512}
513
514int cx88_ir_fini(struct cx88_core *core)
515{
516 struct cx88_IR *ir = core->ir;
517
518
519 if (!ir)
520 return 0;
521
522 cx88_ir_stop(core);
523 rc_unregister_device(ir->dev);
524 kfree(ir);
525
526
527 core->ir = NULL;
528 return 0;
529}
530
531
532
533void cx88_ir_irq(struct cx88_core *core)
534{
535 struct cx88_IR *ir = core->ir;
536 u32 samples;
537 unsigned int todo, bits;
538 struct ir_raw_event ev;
539
540 if (!ir || !ir->sampling)
541 return;
542
543
544
545
546
547
548 samples = cx_read(MO_SAMPLE_IO);
549
550 if (samples == 0xff && ir->dev->idle)
551 return;
552
553 init_ir_raw_event(&ev);
554 for (todo = 32; todo > 0; todo -= bits) {
555 ev.pulse = samples & 0x80000000 ? false : true;
556 bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples));
557 ev.duration = (bits * (NSEC_PER_SEC / 1000)) / ir_samplerate;
558 ir_raw_event_store_with_filter(ir->dev, &ev);
559 samples <<= bits;
560 }
561 ir_raw_event_handle(ir->dev);
562}
563
564static int get_key_pvr2000(struct IR_i2c *ir, enum rc_proto *protocol,
565 u32 *scancode, u8 *toggle)
566{
567 int flags, code;
568
569
570 flags = i2c_smbus_read_byte_data(ir->c, 0x10);
571 if (flags < 0) {
572 dprintk("read error\n");
573 return 0;
574 }
575
576 if (0 == (flags & 0x80))
577 return 0;
578
579
580 code = i2c_smbus_read_byte_data(ir->c, 0x00);
581 if (code < 0) {
582 dprintk("read error\n");
583 return 0;
584 }
585
586 dprintk("IR Key/Flags: (0x%02x/0x%02x)\n",
587 code & 0xff, flags & 0xff);
588
589 *protocol = RC_PROTO_UNKNOWN;
590 *scancode = code & 0xff;
591 *toggle = 0;
592 return 1;
593}
594
595void cx88_i2c_init_ir(struct cx88_core *core)
596{
597 struct i2c_board_info info;
598 static const unsigned short default_addr_list[] = {
599 0x18, 0x6b, 0x71,
600 I2C_CLIENT_END
601 };
602 static const unsigned short pvr2000_addr_list[] = {
603 0x18, 0x1a,
604 I2C_CLIENT_END
605 };
606 const unsigned short *addr_list = default_addr_list;
607 const unsigned short *addrp;
608
609 if (core->i2c_rc != 0)
610 return;
611
612 memset(&info, 0, sizeof(struct i2c_board_info));
613 strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
614
615 switch (core->boardnr) {
616 case CX88_BOARD_LEADTEK_PVR2000:
617 addr_list = pvr2000_addr_list;
618 core->init_data.name = "cx88 Leadtek PVR 2000 remote";
619 core->init_data.type = RC_PROTO_BIT_UNKNOWN;
620 core->init_data.get_key = get_key_pvr2000;
621 core->init_data.ir_codes = RC_MAP_EMPTY;
622 break;
623 }
624
625
626
627
628
629
630
631
632 for (addrp = addr_list; *addrp != I2C_CLIENT_END; addrp++) {
633 info.platform_data = NULL;
634 memset(&core->init_data, 0, sizeof(core->init_data));
635
636 if (*addrp == 0x71) {
637
638 strlcpy(info.type, "ir_z8f0811_haup", I2C_NAME_SIZE);
639 core->init_data.name = core->board.name;
640 core->init_data.ir_codes = RC_MAP_HAUPPAUGE;
641 core->init_data.type = RC_PROTO_BIT_RC5 |
642 RC_PROTO_BIT_RC6_MCE | RC_PROTO_BIT_RC6_6A_32;
643 core->init_data.internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
644
645 info.platform_data = &core->init_data;
646 }
647 if (i2c_smbus_xfer(&core->i2c_adap, *addrp, 0,
648 I2C_SMBUS_READ, 0,
649 I2C_SMBUS_QUICK, NULL) >= 0) {
650 info.addr = *addrp;
651 i2c_new_device(&core->i2c_adap, &info);
652 break;
653 }
654 }
655}
656
657
658
659MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
660MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
661MODULE_LICENSE("GPL");
662