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25#include <linux/init.h>
26#include <linux/hrtimer.h>
27#include <linux/pci.h>
28#include <linux/slab.h>
29#include <linux/module.h>
30
31#include "cx88.h"
32#include <media/rc-core.h>
33
34#define MODULE_NAME "cx88xx"
35
36
37
38struct cx88_IR {
39 struct cx88_core *core;
40 struct rc_dev *dev;
41
42 int users;
43
44 char name[32];
45 char phys[32];
46
47
48 u32 sampling;
49
50
51 int polling;
52 struct hrtimer timer;
53 u32 gpio_addr;
54 u32 last_gpio;
55 u32 mask_keycode;
56 u32 mask_keydown;
57 u32 mask_keyup;
58};
59
60static unsigned ir_samplerate = 4;
61module_param(ir_samplerate, uint, 0444);
62MODULE_PARM_DESC(ir_samplerate, "IR samplerate in kHz, 1 - 20, default 4");
63
64static int ir_debug;
65module_param(ir_debug, int, 0644);
66MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
67
68#define ir_dprintk(fmt, arg...) if (ir_debug) \
69 printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg)
70
71#define dprintk(fmt, arg...) if (ir_debug) \
72 printk(KERN_DEBUG "cx88 IR: " fmt , ##arg)
73
74
75
76static void cx88_ir_handle_key(struct cx88_IR *ir)
77{
78 struct cx88_core *core = ir->core;
79 u32 gpio, data, auxgpio;
80
81
82 gpio = cx_read(ir->gpio_addr);
83 switch (core->boardnr) {
84 case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
85
86
87
88
89
90
91
92
93
94
95
96
97 auxgpio = cx_read(MO_GP1_IO);
98
99 gpio=(gpio & 0x7fd) + (auxgpio & 0xef);
100 break;
101 case CX88_BOARD_WINFAST_DTV1000:
102 case CX88_BOARD_WINFAST_DTV1800H:
103 case CX88_BOARD_WINFAST_DTV1800H_XC4000:
104 case CX88_BOARD_WINFAST_DTV2000H_PLUS:
105 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
106 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36:
107 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43:
108 gpio = (gpio & 0x6ff) | ((cx_read(MO_GP1_IO) << 8) & 0x900);
109 auxgpio = gpio;
110 break;
111 default:
112 auxgpio = gpio;
113 }
114 if (ir->polling) {
115 if (ir->last_gpio == auxgpio)
116 return;
117 ir->last_gpio = auxgpio;
118 }
119
120
121 data = ir_extract_bits(gpio, ir->mask_keycode);
122 ir_dprintk("irq gpio=0x%x code=%d | %s%s%s\n",
123 gpio, data,
124 ir->polling ? "poll" : "irq",
125 (gpio & ir->mask_keydown) ? " down" : "",
126 (gpio & ir->mask_keyup) ? " up" : "");
127
128 if (ir->core->boardnr == CX88_BOARD_NORWOOD_MICRO) {
129 u32 gpio_key = cx_read(MO_GP0_IO);
130
131 data = (data << 4) | ((gpio_key & 0xf0) >> 4);
132
133 rc_keydown(ir->dev, RC_TYPE_UNKNOWN, data, 0);
134
135 } else if (ir->core->boardnr == CX88_BOARD_PROLINK_PLAYTVPVR ||
136 ir->core->boardnr == CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO) {
137
138 u16 addr;
139 u8 cmd;
140 u32 scancode;
141
142 addr = (data >> 8) & 0xffff;
143 cmd = (data >> 0) & 0x00ff;
144 scancode = RC_SCANCODE_NECX(addr, cmd);
145
146 if (0 == (gpio & ir->mask_keyup))
147 rc_keydown_notimeout(ir->dev, RC_TYPE_NECX, scancode,
148 0);
149 else
150 rc_keyup(ir->dev);
151
152 } else if (ir->mask_keydown) {
153
154 if (gpio & ir->mask_keydown)
155 rc_keydown_notimeout(ir->dev, RC_TYPE_UNKNOWN, data, 0);
156 else
157 rc_keyup(ir->dev);
158
159 } else if (ir->mask_keyup) {
160
161 if (0 == (gpio & ir->mask_keyup))
162 rc_keydown_notimeout(ir->dev, RC_TYPE_UNKNOWN, data, 0);
163 else
164 rc_keyup(ir->dev);
165
166 } else {
167
168 rc_keydown_notimeout(ir->dev, RC_TYPE_UNKNOWN, data, 0);
169 rc_keyup(ir->dev);
170 }
171}
172
173static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer)
174{
175 unsigned long missed;
176 struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer);
177
178 cx88_ir_handle_key(ir);
179 missed = hrtimer_forward_now(&ir->timer,
180 ktime_set(0, ir->polling * 1000000));
181 if (missed > 1)
182 ir_dprintk("Missed ticks %ld\n", missed - 1);
183
184 return HRTIMER_RESTART;
185}
186
187static int __cx88_ir_start(void *priv)
188{
189 struct cx88_core *core = priv;
190 struct cx88_IR *ir;
191
192 if (!core || !core->ir)
193 return -EINVAL;
194
195 ir = core->ir;
196
197 if (ir->polling) {
198 hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
199 ir->timer.function = cx88_ir_work;
200 hrtimer_start(&ir->timer,
201 ktime_set(0, ir->polling * 1000000),
202 HRTIMER_MODE_REL);
203 }
204 if (ir->sampling) {
205 core->pci_irqmask |= PCI_INT_IR_SMPINT;
206 cx_write(MO_DDS_IO, 0x33F286 * ir_samplerate);
207 cx_write(MO_DDSCFG_IO, 0x5);
208 }
209 return 0;
210}
211
212static void __cx88_ir_stop(void *priv)
213{
214 struct cx88_core *core = priv;
215 struct cx88_IR *ir;
216
217 if (!core || !core->ir)
218 return;
219
220 ir = core->ir;
221 if (ir->sampling) {
222 cx_write(MO_DDSCFG_IO, 0x0);
223 core->pci_irqmask &= ~PCI_INT_IR_SMPINT;
224 }
225
226 if (ir->polling)
227 hrtimer_cancel(&ir->timer);
228}
229
230int cx88_ir_start(struct cx88_core *core)
231{
232 if (core->ir->users)
233 return __cx88_ir_start(core);
234
235 return 0;
236}
237
238void cx88_ir_stop(struct cx88_core *core)
239{
240 if (core->ir->users)
241 __cx88_ir_stop(core);
242}
243
244static int cx88_ir_open(struct rc_dev *rc)
245{
246 struct cx88_core *core = rc->priv;
247
248 core->ir->users++;
249 return __cx88_ir_start(core);
250}
251
252static void cx88_ir_close(struct rc_dev *rc)
253{
254 struct cx88_core *core = rc->priv;
255
256 core->ir->users--;
257 if (!core->ir->users)
258 __cx88_ir_stop(core);
259}
260
261
262
263int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
264{
265 struct cx88_IR *ir;
266 struct rc_dev *dev;
267 char *ir_codes = NULL;
268 u64 rc_type = RC_BIT_OTHER;
269 int err = -ENOMEM;
270 u32 hardware_mask = 0;
271
272
273
274 ir = kzalloc(sizeof(*ir), GFP_KERNEL);
275 dev = rc_allocate_device();
276 if (!ir || !dev)
277 goto err_out_free;
278
279 ir->dev = dev;
280
281
282 switch (core->boardnr) {
283 case CX88_BOARD_DNTV_LIVE_DVB_T:
284 case CX88_BOARD_KWORLD_DVB_T:
285 case CX88_BOARD_KWORLD_DVB_T_CX22702:
286 ir_codes = RC_MAP_DNTV_LIVE_DVB_T;
287 ir->gpio_addr = MO_GP1_IO;
288 ir->mask_keycode = 0x1f;
289 ir->mask_keyup = 0x60;
290 ir->polling = 50;
291 break;
292 case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
293 ir_codes = RC_MAP_CINERGY_1400;
294 ir->sampling = 0xeb04;
295 break;
296 case CX88_BOARD_HAUPPAUGE:
297 case CX88_BOARD_HAUPPAUGE_DVB_T1:
298 case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
299 case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
300 case CX88_BOARD_HAUPPAUGE_HVR1100:
301 case CX88_BOARD_HAUPPAUGE_HVR3000:
302 case CX88_BOARD_HAUPPAUGE_HVR4000:
303 case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
304 case CX88_BOARD_PCHDTV_HD3000:
305 case CX88_BOARD_PCHDTV_HD5500:
306 case CX88_BOARD_HAUPPAUGE_IRONLY:
307 ir_codes = RC_MAP_HAUPPAUGE;
308 ir->sampling = 1;
309 break;
310 case CX88_BOARD_WINFAST_DTV2000H:
311 case CX88_BOARD_WINFAST_DTV2000H_J:
312 case CX88_BOARD_WINFAST_DTV1800H:
313 case CX88_BOARD_WINFAST_DTV1800H_XC4000:
314 case CX88_BOARD_WINFAST_DTV2000H_PLUS:
315 ir_codes = RC_MAP_WINFAST;
316 ir->gpio_addr = MO_GP0_IO;
317 ir->mask_keycode = 0x8f8;
318 ir->mask_keyup = 0x100;
319 ir->polling = 50;
320 break;
321 case CX88_BOARD_WINFAST2000XP_EXPERT:
322 case CX88_BOARD_WINFAST_DTV1000:
323 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
324 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36:
325 case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43:
326 ir_codes = RC_MAP_WINFAST;
327 ir->gpio_addr = MO_GP0_IO;
328 ir->mask_keycode = 0x8f8;
329 ir->mask_keyup = 0x100;
330 ir->polling = 1;
331 break;
332 case CX88_BOARD_IODATA_GVBCTV7E:
333 ir_codes = RC_MAP_IODATA_BCTV7E;
334 ir->gpio_addr = MO_GP0_IO;
335 ir->mask_keycode = 0xfd;
336 ir->mask_keydown = 0x02;
337 ir->polling = 5;
338 break;
339 case CX88_BOARD_PROLINK_PLAYTVPVR:
340 case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
341
342
343
344
345
346
347
348 ir_codes = RC_MAP_PIXELVIEW_MK12;
349 rc_type = RC_BIT_NECX;
350 ir->gpio_addr = MO_GP1_IO;
351 ir->mask_keyup = 0x80;
352 ir->polling = 10;
353 hardware_mask = 0x3f;
354 break;
355 case CX88_BOARD_PROLINK_PV_8000GT:
356 case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME:
357 ir_codes = RC_MAP_PIXELVIEW_NEW;
358 ir->gpio_addr = MO_GP1_IO;
359 ir->mask_keycode = 0x3f;
360 ir->mask_keyup = 0x80;
361 ir->polling = 1;
362 break;
363 case CX88_BOARD_KWORLD_LTV883:
364 ir_codes = RC_MAP_PIXELVIEW;
365 ir->gpio_addr = MO_GP1_IO;
366 ir->mask_keycode = 0x1f;
367 ir->mask_keyup = 0x60;
368 ir->polling = 1;
369 break;
370 case CX88_BOARD_ADSTECH_DVB_T_PCI:
371 ir_codes = RC_MAP_ADSTECH_DVB_T_PCI;
372 ir->gpio_addr = MO_GP1_IO;
373 ir->mask_keycode = 0xbf;
374 ir->mask_keyup = 0x40;
375 ir->polling = 50;
376 break;
377 case CX88_BOARD_MSI_TVANYWHERE_MASTER:
378 ir_codes = RC_MAP_MSI_TVANYWHERE;
379 ir->gpio_addr = MO_GP1_IO;
380 ir->mask_keycode = 0x1f;
381 ir->mask_keyup = 0x40;
382 ir->polling = 1;
383 break;
384 case CX88_BOARD_AVERTV_303:
385 case CX88_BOARD_AVERTV_STUDIO_303:
386 ir_codes = RC_MAP_AVERTV_303;
387 ir->gpio_addr = MO_GP2_IO;
388 ir->mask_keycode = 0xfb;
389 ir->mask_keydown = 0x02;
390 ir->polling = 50;
391 break;
392 case CX88_BOARD_OMICOM_SS4_PCI:
393 case CX88_BOARD_SATTRADE_ST4200:
394 case CX88_BOARD_TBS_8920:
395 case CX88_BOARD_TBS_8910:
396 case CX88_BOARD_PROF_7300:
397 case CX88_BOARD_PROF_7301:
398 case CX88_BOARD_PROF_6200:
399 ir_codes = RC_MAP_TBS_NEC;
400 ir->sampling = 0xff00;
401 break;
402 case CX88_BOARD_TEVII_S464:
403 case CX88_BOARD_TEVII_S460:
404 case CX88_BOARD_TEVII_S420:
405 ir_codes = RC_MAP_TEVII_NEC;
406 ir->sampling = 0xff00;
407 break;
408 case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
409 ir_codes = RC_MAP_DNTV_LIVE_DVBT_PRO;
410 ir->sampling = 0xff00;
411 break;
412 case CX88_BOARD_NORWOOD_MICRO:
413 ir_codes = RC_MAP_NORWOOD;
414 ir->gpio_addr = MO_GP1_IO;
415 ir->mask_keycode = 0x0e;
416 ir->mask_keyup = 0x80;
417 ir->polling = 50;
418 break;
419 case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
420 ir_codes = RC_MAP_NPGTECH;
421 ir->gpio_addr = MO_GP0_IO;
422 ir->mask_keycode = 0xfa;
423 ir->polling = 50;
424 break;
425 case CX88_BOARD_PINNACLE_PCTV_HD_800i:
426 ir_codes = RC_MAP_PINNACLE_PCTV_HD;
427 ir->sampling = 1;
428 break;
429 case CX88_BOARD_POWERCOLOR_REAL_ANGEL:
430 ir_codes = RC_MAP_POWERCOLOR_REAL_ANGEL;
431 ir->gpio_addr = MO_GP2_IO;
432 ir->mask_keycode = 0x7e;
433 ir->polling = 100;
434 break;
435 case CX88_BOARD_TWINHAN_VP1027_DVBS:
436 ir_codes = RC_MAP_TWINHAN_VP1027_DVBS;
437 ir->sampling = 0xff00;
438 break;
439 }
440
441 if (!ir_codes) {
442 err = -ENODEV;
443 goto err_out_free;
444 }
445
446
447
448
449
450
451
452
453
454
455
456
457
458 if (hardware_mask && !ir->mask_keycode)
459 ir->mask_keycode = hardware_mask;
460
461
462 snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name);
463 snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
464
465 dev->input_name = ir->name;
466 dev->input_phys = ir->phys;
467 dev->input_id.bustype = BUS_PCI;
468 dev->input_id.version = 1;
469 if (pci->subsystem_vendor) {
470 dev->input_id.vendor = pci->subsystem_vendor;
471 dev->input_id.product = pci->subsystem_device;
472 } else {
473 dev->input_id.vendor = pci->vendor;
474 dev->input_id.product = pci->device;
475 }
476 dev->dev.parent = &pci->dev;
477 dev->map_name = ir_codes;
478 dev->driver_name = MODULE_NAME;
479 dev->priv = core;
480 dev->open = cx88_ir_open;
481 dev->close = cx88_ir_close;
482 dev->scancode_mask = hardware_mask;
483
484 if (ir->sampling) {
485 dev->driver_type = RC_DRIVER_IR_RAW;
486 dev->timeout = 10 * 1000 * 1000;
487 } else {
488 dev->driver_type = RC_DRIVER_SCANCODE;
489 dev->allowed_protocols = rc_type;
490 }
491
492 ir->core = core;
493 core->ir = ir;
494
495
496 err = rc_register_device(dev);
497 if (err)
498 goto err_out_free;
499
500 return 0;
501
502err_out_free:
503 rc_free_device(dev);
504 core->ir = NULL;
505 kfree(ir);
506 return err;
507}
508
509int cx88_ir_fini(struct cx88_core *core)
510{
511 struct cx88_IR *ir = core->ir;
512
513
514 if (NULL == ir)
515 return 0;
516
517 cx88_ir_stop(core);
518 rc_unregister_device(ir->dev);
519 kfree(ir);
520
521
522 core->ir = NULL;
523 return 0;
524}
525
526
527
528void cx88_ir_irq(struct cx88_core *core)
529{
530 struct cx88_IR *ir = core->ir;
531 u32 samples;
532 unsigned todo, bits;
533 struct ir_raw_event ev;
534
535 if (!ir || !ir->sampling)
536 return;
537
538
539
540
541
542
543 samples = cx_read(MO_SAMPLE_IO);
544
545 if (samples == 0xff && ir->dev->idle)
546 return;
547
548 init_ir_raw_event(&ev);
549 for (todo = 32; todo > 0; todo -= bits) {
550 ev.pulse = samples & 0x80000000 ? false : true;
551 bits = min(todo, 32U - fls(ev.pulse ? samples : ~samples));
552 ev.duration = (bits * (NSEC_PER_SEC / 1000)) / ir_samplerate;
553 ir_raw_event_store_with_filter(ir->dev, &ev);
554 samples <<= bits;
555 }
556 ir_raw_event_handle(ir->dev);
557}
558
559static int get_key_pvr2000(struct IR_i2c *ir, enum rc_type *protocol,
560 u32 *scancode, u8 *toggle)
561{
562 int flags, code;
563
564
565 flags = i2c_smbus_read_byte_data(ir->c, 0x10);
566 if (flags < 0) {
567 dprintk("read error\n");
568 return 0;
569 }
570
571 if (0 == (flags & 0x80))
572 return 0;
573
574
575 code = i2c_smbus_read_byte_data(ir->c, 0x00);
576 if (code < 0) {
577 dprintk("read error\n");
578 return 0;
579 }
580
581 dprintk("IR Key/Flags: (0x%02x/0x%02x)\n",
582 code & 0xff, flags & 0xff);
583
584 *protocol = RC_TYPE_UNKNOWN;
585 *scancode = code & 0xff;
586 *toggle = 0;
587 return 1;
588}
589
590void cx88_i2c_init_ir(struct cx88_core *core)
591{
592 struct i2c_board_info info;
593 const unsigned short default_addr_list[] = {
594 0x18, 0x6b, 0x71,
595 I2C_CLIENT_END
596 };
597 const unsigned short pvr2000_addr_list[] = {
598 0x18, 0x1a,
599 I2C_CLIENT_END
600 };
601 const unsigned short *addr_list = default_addr_list;
602 const unsigned short *addrp;
603
604 if (0 != core->i2c_rc)
605 return;
606
607 memset(&info, 0, sizeof(struct i2c_board_info));
608 strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
609
610 switch (core->boardnr) {
611 case CX88_BOARD_LEADTEK_PVR2000:
612 addr_list = pvr2000_addr_list;
613 core->init_data.name = "cx88 Leadtek PVR 2000 remote";
614 core->init_data.type = RC_BIT_UNKNOWN;
615 core->init_data.get_key = get_key_pvr2000;
616 core->init_data.ir_codes = RC_MAP_EMPTY;
617 break;
618 }
619
620
621
622
623
624
625
626
627 for (addrp = addr_list; *addrp != I2C_CLIENT_END; addrp++) {
628 info.platform_data = NULL;
629 memset(&core->init_data, 0, sizeof(core->init_data));
630
631 if (*addrp == 0x71) {
632
633 core->init_data.name = "cx88 Hauppauge XVR remote";
634 core->init_data.ir_codes = RC_MAP_HAUPPAUGE;
635 core->init_data.type = RC_BIT_RC5 | RC_BIT_RC6_MCE |
636 RC_BIT_RC6_6A_32;
637 core->init_data.internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
638
639 info.platform_data = &core->init_data;
640 }
641 if (i2c_smbus_xfer(&core->i2c_adap, *addrp, 0,
642 I2C_SMBUS_READ, 0,
643 I2C_SMBUS_QUICK, NULL) >= 0) {
644 info.addr = *addrp;
645 i2c_new_device(&core->i2c_adap, &info);
646 break;
647 }
648 }
649}
650
651
652
653MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
654MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
655MODULE_LICENSE("GPL");
656