1/*
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>
22#include <linux/init.h>
23#include <linux/delay.h>
24#include <linux/interrupt.h>
25#include <linux/slab.h>
26
27#include "saa7134-reg.h"
28#include "saa7134.h"
29
30#define MODULE_NAME "saa7134"
31
32static unsigned int disable_ir;
33module_param(disable_ir, int, 0444);
34MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
35
36static unsigned int ir_debug;
37module_param(ir_debug, int, 0644);
38MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
39
40static int pinnacle_remote;
41module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
42MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
43
44#define dprintk(fmt, arg...)	if (ir_debug) \
45	printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
46#define i2cdprintk(fmt, arg...)    if (ir_debug) \
47	printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg)
48
49/* Helper function for raw decoding at GPIO16 or GPIO18 */
50static int saa7134_raw_decode_irq(struct saa7134_dev *dev);
51
52/* -------------------- GPIO generic keycode builder -------------------- */
53
54static int build_key(struct saa7134_dev *dev)
55{
56	struct saa7134_card_ir *ir = dev->remote;
57	u32 gpio, data;
58
59	/* here comes the additional handshake steps for some cards */
60	switch (dev->board) {
61	case SAA7134_BOARD_GOTVIEW_7135:
62		saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
63		saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
64		break;
65	}
66	/* rising SAA7134_GPIO_GPRESCAN reads the status */
67	saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
68	saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
69
70	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
71	if (ir->polling) {
72		if (ir->last_gpio == gpio)
73			return 0;
74		ir->last_gpio = gpio;
75	}
76
77	data = ir_extract_bits(gpio, ir->mask_keycode);
78	dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
79		gpio, ir->mask_keycode, data);
80
81	switch (dev->board) {
82	case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
83		if (data == ir->mask_keycode)
84			rc_keyup(ir->dev);
85		else
86			rc_keydown_notimeout(ir->dev, RC_TYPE_UNKNOWN, data, 0);
87		return 0;
88	}
89
90	if (ir->polling) {
91		if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
92		    (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
93			rc_keydown_notimeout(ir->dev, RC_TYPE_UNKNOWN, data, 0);
94		} else {
95			rc_keyup(ir->dev);
96		}
97	}
98	else {	/* IRQ driven mode - handle key press and release in one go */
99		if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
100		    (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
101			rc_keydown_notimeout(ir->dev, RC_TYPE_UNKNOWN, data, 0);
102			rc_keyup(ir->dev);
103		}
104	}
105
106	return 0;
107}
108
109/* --------------------- Chip specific I2C key builders ----------------- */
110
111static int get_key_flydvb_trio(struct IR_i2c *ir, enum rc_type *protocol,
112			       u32 *scancode, u8 *toggle)
113{
114	int gpio;
115	int attempt = 0;
116	unsigned char b;
117
118	/* We need this to access GPI Used by the saa_readl macro. */
119	struct saa7134_dev *dev = ir->c->adapter->algo_data;
120
121	if (dev == NULL) {
122		i2cdprintk("get_key_flydvb_trio: "
123			   "ir->c->adapter->algo_data is NULL!\n");
124		return -EIO;
125	}
126
127	/* rising SAA7134_GPIGPRESCAN reads the status */
128	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
129	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
130
131	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
132
133	if (0x40000 & ~gpio)
134		return 0; /* No button press */
135
136	/* poll IR chip */
137	/* weak up the IR chip */
138	b = 0;
139
140	while (1 != i2c_master_send(ir->c, &b, 1)) {
141		if ((attempt++) < 10) {
142			/*
143			 * wait a bit for next attempt -
144			 * I don't know how make it better
145			 */
146			msleep(10);
147			continue;
148		}
149		i2cdprintk("send wake up byte to pic16C505 (IR chip)"
150			   "failed %dx\n", attempt);
151		return -EIO;
152	}
153	if (1 != i2c_master_recv(ir->c, &b, 1)) {
154		i2cdprintk("read error\n");
155		return -EIO;
156	}
157
158	*protocol = RC_TYPE_UNKNOWN;
159	*scancode = b;
160	*toggle = 0;
161	return 1;
162}
163
164static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, enum rc_type *protocol,
165				       u32 *scancode, u8 *toggle)
166{
167	unsigned char b;
168	int gpio;
169
170	/* <dev> is needed to access GPIO. Used by the saa_readl macro. */
171	struct saa7134_dev *dev = ir->c->adapter->algo_data;
172	if (dev == NULL) {
173		i2cdprintk("get_key_msi_tvanywhere_plus: "
174			   "ir->c->adapter->algo_data is NULL!\n");
175		return -EIO;
176	}
177
178	/* rising SAA7134_GPIO_GPRESCAN reads the status */
179
180	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
181	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
182
183	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
184
185	/* GPIO&0x40 is pulsed low when a button is pressed. Don't do
186	   I2C receive if gpio&0x40 is not low. */
187
188	if (gpio & 0x40)
189		return 0;       /* No button press */
190
191	/* GPIO says there is a button press. Get it. */
192
193	if (1 != i2c_master_recv(ir->c, &b, 1)) {
194		i2cdprintk("read error\n");
195		return -EIO;
196	}
197
198	/* No button press */
199
200	if (b == 0xff)
201		return 0;
202
203	/* Button pressed */
204
205	dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
206	*protocol = RC_TYPE_UNKNOWN;
207	*scancode = b;
208	*toggle = 0;
209	return 1;
210}
211
212/* copied and modified from get_key_msi_tvanywhere_plus() */
213static int get_key_kworld_pc150u(struct IR_i2c *ir, enum rc_type *protocol,
214				 u32 *scancode, u8 *toggle)
215{
216	unsigned char b;
217	unsigned int gpio;
218
219	/* <dev> is needed to access GPIO. Used by the saa_readl macro. */
220	struct saa7134_dev *dev = ir->c->adapter->algo_data;
221	if (dev == NULL) {
222		i2cdprintk("get_key_kworld_pc150u: "
223			   "ir->c->adapter->algo_data is NULL!\n");
224		return -EIO;
225	}
226
227	/* rising SAA7134_GPIO_GPRESCAN reads the status */
228
229	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
230	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
231
232	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
233
234	/* GPIO&0x100 is pulsed low when a button is pressed. Don't do
235	   I2C receive if gpio&0x100 is not low. */
236
237	if (gpio & 0x100)
238		return 0;       /* No button press */
239
240	/* GPIO says there is a button press. Get it. */
241
242	if (1 != i2c_master_recv(ir->c, &b, 1)) {
243		i2cdprintk("read error\n");
244		return -EIO;
245	}
246
247	/* No button press */
248
249	if (b == 0xff)
250		return 0;
251
252	/* Button pressed */
253
254	dprintk("get_key_kworld_pc150u: Key = 0x%02X\n", b);
255	*protocol = RC_TYPE_UNKNOWN;
256	*scancode = b;
257	*toggle = 0;
258	return 1;
259}
260
261static int get_key_purpletv(struct IR_i2c *ir, enum rc_type *protocol,
262			    u32 *scancode, u8 *toggle)
263{
264	unsigned char b;
265
266	/* poll IR chip */
267	if (1 != i2c_master_recv(ir->c, &b, 1)) {
268		i2cdprintk("read error\n");
269		return -EIO;
270	}
271
272	/* no button press */
273	if (b==0)
274		return 0;
275
276	/* repeating */
277	if (b & 0x80)
278		return 1;
279
280	*protocol = RC_TYPE_UNKNOWN;
281	*scancode = b;
282	*toggle = 0;
283	return 1;
284}
285
286static int get_key_hvr1110(struct IR_i2c *ir, enum rc_type *protocol,
287			   u32 *scancode, u8 *toggle)
288{
289	unsigned char buf[5];
290
291	/* poll IR chip */
292	if (5 != i2c_master_recv(ir->c, buf, 5))
293		return -EIO;
294
295	/* Check if some key were pressed */
296	if (!(buf[0] & 0x80))
297		return 0;
298
299	/*
300	 * buf[3] & 0x80 is always high.
301	 * buf[3] & 0x40 is a parity bit. A repeat event is marked
302	 * by preserving it into two separate readings
303	 * buf[4] bits 0 and 1, and buf[1] and buf[2] are always
304	 * zero.
305	 *
306	 * Note that the keymap which the hvr1110 uses is RC5.
307	 *
308	 * FIXME: start bits could maybe be used...?
309	 */
310	*protocol = RC_TYPE_RC5;
311	*scancode = RC_SCANCODE_RC5(buf[3] & 0x1f, buf[4] >> 2);
312	*toggle = !!(buf[3] & 0x40);
313	return 1;
314}
315
316
317static int get_key_beholdm6xx(struct IR_i2c *ir, enum rc_type *protocol,
318			      u32 *scancode, u8 *toggle)
319{
320	unsigned char data[12];
321	u32 gpio;
322
323	struct saa7134_dev *dev = ir->c->adapter->algo_data;
324
325	/* rising SAA7134_GPIO_GPRESCAN reads the status */
326	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
327	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
328
329	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
330
331	if (0x400000 & ~gpio)
332		return 0; /* No button press */
333
334	ir->c->addr = 0x5a >> 1;
335
336	if (12 != i2c_master_recv(ir->c, data, 12)) {
337		i2cdprintk("read error\n");
338		return -EIO;
339	}
340
341	if (data[9] != (unsigned char)(~data[8]))
342		return 0;
343
344	*protocol = RC_TYPE_NEC;
345	*scancode = RC_SCANCODE_NECX(data[11] << 8 | data[10], data[9]);
346	*toggle = 0;
347	return 1;
348}
349
350/* Common (grey or coloured) pinnacle PCTV remote handling
351 *
352 */
353static int get_key_pinnacle(struct IR_i2c *ir, enum rc_type *protocol,
354			    u32 *scancode, u8 *toggle, int parity_offset,
355			    int marker, int code_modulo)
356{
357	unsigned char b[4];
358	unsigned int start = 0,parity = 0,code = 0;
359
360	/* poll IR chip */
361	if (4 != i2c_master_recv(ir->c, b, 4)) {
362		i2cdprintk("read error\n");
363		return -EIO;
364	}
365
366	for (start = 0; start < ARRAY_SIZE(b); start++) {
367		if (b[start] == marker) {
368			code=b[(start+parity_offset + 1) % 4];
369			parity=b[(start+parity_offset) % 4];
370		}
371	}
372
373	/* Empty Request */
374	if (parity == 0)
375		return 0;
376
377	/* Repeating... */
378	if (ir->old == parity)
379		return 0;
380
381	ir->old = parity;
382
383	/* drop special codes when a key is held down a long time for the grey controller
384	   In this case, the second bit of the code is asserted */
385	if (marker == 0xfe && (code & 0x40))
386		return 0;
387
388	code %= code_modulo;
389
390	*protocol = RC_TYPE_UNKNOWN;
391	*scancode = code;
392	*toggle = 0;
393
394	i2cdprintk("Pinnacle PCTV key %02x\n", code);
395	return 1;
396}
397
398/* The grey pinnacle PCTV remote
399 *
400 *  There are one issue with this remote:
401 *   - I2c packet does not change when the same key is pressed quickly. The workaround
402 *     is to hold down each key for about half a second, so that another code is generated
403 *     in the i2c packet, and the function can distinguish key presses.
404 *
405 * Sylvain Pasche <sylvain.pasche@gmail.com>
406 */
407static int get_key_pinnacle_grey(struct IR_i2c *ir, enum rc_type *protocol,
408				 u32 *scancode, u8 *toggle)
409{
410
411	return get_key_pinnacle(ir, protocol, scancode, toggle, 1, 0xfe, 0xff);
412}
413
414
415/* The new pinnacle PCTV remote (with the colored buttons)
416 *
417 * Ricardo Cerqueira <v4l@cerqueira.org>
418 */
419static int get_key_pinnacle_color(struct IR_i2c *ir, enum rc_type *protocol,
420				  u32 *scancode, u8 *toggle)
421{
422	/* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
423	 *
424	 * this is the only value that results in 42 unique
425	 * codes < 128
426	 */
427
428	return get_key_pinnacle(ir, protocol, scancode, toggle, 2, 0x80, 0x88);
429}
430
431void saa7134_input_irq(struct saa7134_dev *dev)
432{
433	struct saa7134_card_ir *ir;
434
435	if (!dev || !dev->remote)
436		return;
437
438	ir = dev->remote;
439	if (!ir->running)
440		return;
441
442	if (!ir->polling && !ir->raw_decode) {
443		build_key(dev);
444	} else if (ir->raw_decode) {
445		saa7134_raw_decode_irq(dev);
446	}
447}
448
449static void saa7134_input_timer(unsigned long data)
450{
451	struct saa7134_dev *dev = (struct saa7134_dev *)data;
452	struct saa7134_card_ir *ir = dev->remote;
453
454	build_key(dev);
455	mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
456}
457
458static void ir_raw_decode_timer_end(unsigned long data)
459{
460	struct saa7134_dev *dev = (struct saa7134_dev *)data;
461
462	ir_raw_event_handle(dev->remote->dev);
463}
464
465static int __saa7134_ir_start(void *priv)
466{
467	struct saa7134_dev *dev = priv;
468	struct saa7134_card_ir *ir;
469
470	if (!dev || !dev->remote)
471		return -EINVAL;
472
473	ir  = dev->remote;
474	if (ir->running)
475		return 0;
476
477	/* Moved here from saa7134_input_init1() because the latter
478	 * is not called on device resume */
479	switch (dev->board) {
480	case SAA7134_BOARD_MD2819:
481	case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
482	case SAA7134_BOARD_AVERMEDIA_305:
483	case SAA7134_BOARD_AVERMEDIA_307:
484	case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
485	case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
486	case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
487	case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
488	case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
489	case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
490	case SAA7134_BOARD_AVERMEDIA_M102:
491	case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
492		/* Without this we won't receive key up events */
493		saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
494		saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
495		break;
496	case SAA7134_BOARD_AVERMEDIA_777:
497	case SAA7134_BOARD_AVERMEDIA_A16AR:
498		/* Without this we won't receive key up events */
499		saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
500		saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
501		break;
502	case SAA7134_BOARD_AVERMEDIA_A16D:
503		/* Without this we won't receive key up events */
504		saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
505		saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
506		break;
507	case SAA7134_BOARD_GOTVIEW_7135:
508		saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
509		break;
510	}
511
512	ir->running = true;
513
514	if (ir->polling) {
515		setup_timer(&ir->timer, saa7134_input_timer,
516			    (unsigned long)dev);
517		ir->timer.expires = jiffies + HZ;
518		add_timer(&ir->timer);
519	} else if (ir->raw_decode) {
520		/* set timer_end for code completion */
521		setup_timer(&ir->timer, ir_raw_decode_timer_end,
522			    (unsigned long)dev);
523	}
524
525	return 0;
526}
527
528static void __saa7134_ir_stop(void *priv)
529{
530	struct saa7134_dev *dev = priv;
531	struct saa7134_card_ir *ir;
532
533	if (!dev || !dev->remote)
534		return;
535
536	ir  = dev->remote;
537	if (!ir->running)
538		return;
539
540	if (ir->polling || ir->raw_decode)
541		del_timer_sync(&ir->timer);
542
543	ir->running = false;
544
545	return;
546}
547
548int saa7134_ir_start(struct saa7134_dev *dev)
549{
550	if (dev->remote->users)
551		return __saa7134_ir_start(dev);
552
553	return 0;
554}
555
556void saa7134_ir_stop(struct saa7134_dev *dev)
557{
558	if (dev->remote->users)
559		__saa7134_ir_stop(dev);
560}
561
562static int saa7134_ir_open(struct rc_dev *rc)
563{
564	struct saa7134_dev *dev = rc->priv;
565
566	dev->remote->users++;
567	return __saa7134_ir_start(dev);
568}
569
570static void saa7134_ir_close(struct rc_dev *rc)
571{
572	struct saa7134_dev *dev = rc->priv;
573
574	dev->remote->users--;
575	if (!dev->remote->users)
576		__saa7134_ir_stop(dev);
577}
578
579int saa7134_input_init1(struct saa7134_dev *dev)
580{
581	struct saa7134_card_ir *ir;
582	struct rc_dev *rc;
583	char *ir_codes = NULL;
584	u32 mask_keycode = 0;
585	u32 mask_keydown = 0;
586	u32 mask_keyup   = 0;
587	unsigned polling = 0;
588	bool raw_decode  = false;
589	int err;
590
591	if (dev->has_remote != SAA7134_REMOTE_GPIO)
592		return -ENODEV;
593	if (disable_ir)
594		return -ENODEV;
595
596	/* detect & configure */
597	switch (dev->board) {
598	case SAA7134_BOARD_FLYVIDEO2000:
599	case SAA7134_BOARD_FLYVIDEO3000:
600	case SAA7134_BOARD_FLYTVPLATINUM_FM:
601	case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
602	case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
603		ir_codes     = RC_MAP_FLYVIDEO;
604		mask_keycode = 0xEC00000;
605		mask_keydown = 0x0040000;
606		break;
607	case SAA7134_BOARD_CINERGY400:
608	case SAA7134_BOARD_CINERGY600:
609	case SAA7134_BOARD_CINERGY600_MK3:
610		ir_codes     = RC_MAP_CINERGY;
611		mask_keycode = 0x00003f;
612		mask_keyup   = 0x040000;
613		break;
614	case SAA7134_BOARD_ECS_TVP3XP:
615	case SAA7134_BOARD_ECS_TVP3XP_4CB5:
616		ir_codes     = RC_MAP_EZTV;
617		mask_keycode = 0x00017c;
618		mask_keyup   = 0x000002;
619		polling      = 50; // ms
620		break;
621	case SAA7134_BOARD_KWORLD_XPERT:
622	case SAA7134_BOARD_AVACSSMARTTV:
623		ir_codes     = RC_MAP_PIXELVIEW;
624		mask_keycode = 0x00001F;
625		mask_keyup   = 0x000020;
626		polling      = 50; // ms
627		break;
628	case SAA7134_BOARD_MD2819:
629	case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
630	case SAA7134_BOARD_AVERMEDIA_305:
631	case SAA7134_BOARD_AVERMEDIA_307:
632	case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
633	case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
634	case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
635	case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
636	case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
637	case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
638	case SAA7134_BOARD_AVERMEDIA_M102:
639	case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
640		ir_codes     = RC_MAP_AVERMEDIA;
641		mask_keycode = 0x0007C8;
642		mask_keydown = 0x000010;
643		polling      = 50; // ms
644		/* GPIO stuff moved to __saa7134_ir_start() */
645		break;
646	case SAA7134_BOARD_AVERMEDIA_M135A:
647		ir_codes     = RC_MAP_AVERMEDIA_M135A;
648		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
649		mask_keyup   = 0x0040000;
650		mask_keycode = 0xffff;
651		raw_decode   = true;
652		break;
653	case SAA7134_BOARD_AVERMEDIA_M733A:
654		ir_codes     = RC_MAP_AVERMEDIA_M733A_RM_K6;
655		mask_keydown = 0x0040000;
656		mask_keyup   = 0x0040000;
657		mask_keycode = 0xffff;
658		raw_decode   = true;
659		break;
660	case SAA7134_BOARD_AVERMEDIA_777:
661	case SAA7134_BOARD_AVERMEDIA_A16AR:
662		ir_codes     = RC_MAP_AVERMEDIA;
663		mask_keycode = 0x02F200;
664		mask_keydown = 0x000400;
665		polling      = 50; // ms
666		/* GPIO stuff moved to __saa7134_ir_start() */
667		break;
668	case SAA7134_BOARD_AVERMEDIA_A16D:
669		ir_codes     = RC_MAP_AVERMEDIA_A16D;
670		mask_keycode = 0x02F200;
671		mask_keydown = 0x000400;
672		polling      = 50; /* ms */
673		/* GPIO stuff moved to __saa7134_ir_start() */
674		break;
675	case SAA7134_BOARD_KWORLD_TERMINATOR:
676		ir_codes     = RC_MAP_PIXELVIEW;
677		mask_keycode = 0x00001f;
678		mask_keyup   = 0x000060;
679		polling      = 50; // ms
680		break;
681	case SAA7134_BOARD_MANLI_MTV001:
682	case SAA7134_BOARD_MANLI_MTV002:
683		ir_codes     = RC_MAP_MANLI;
684		mask_keycode = 0x001f00;
685		mask_keyup   = 0x004000;
686		polling      = 50; /* ms */
687		break;
688	case SAA7134_BOARD_BEHOLD_409FM:
689	case SAA7134_BOARD_BEHOLD_401:
690	case SAA7134_BOARD_BEHOLD_403:
691	case SAA7134_BOARD_BEHOLD_403FM:
692	case SAA7134_BOARD_BEHOLD_405:
693	case SAA7134_BOARD_BEHOLD_405FM:
694	case SAA7134_BOARD_BEHOLD_407:
695	case SAA7134_BOARD_BEHOLD_407FM:
696	case SAA7134_BOARD_BEHOLD_409:
697	case SAA7134_BOARD_BEHOLD_505FM:
698	case SAA7134_BOARD_BEHOLD_505RDS_MK5:
699	case SAA7134_BOARD_BEHOLD_505RDS_MK3:
700	case SAA7134_BOARD_BEHOLD_507_9FM:
701	case SAA7134_BOARD_BEHOLD_507RDS_MK3:
702	case SAA7134_BOARD_BEHOLD_507RDS_MK5:
703		ir_codes     = RC_MAP_MANLI;
704		mask_keycode = 0x003f00;
705		mask_keyup   = 0x004000;
706		polling      = 50; /* ms */
707		break;
708	case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
709		ir_codes     = RC_MAP_BEHOLD_COLUMBUS;
710		mask_keycode = 0x003f00;
711		mask_keyup   = 0x004000;
712		polling      = 50; // ms
713		break;
714	case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
715		ir_codes     = RC_MAP_PCTV_SEDNA;
716		mask_keycode = 0x001f00;
717		mask_keyup   = 0x004000;
718		polling      = 50; // ms
719		break;
720	case SAA7134_BOARD_GOTVIEW_7135:
721		ir_codes     = RC_MAP_GOTVIEW7135;
722		mask_keycode = 0x0003CC;
723		mask_keydown = 0x000010;
724		polling	     = 5; /* ms */
725		/* GPIO stuff moved to __saa7134_ir_start() */
726		break;
727	case SAA7134_BOARD_VIDEOMATE_TV_PVR:
728	case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
729	case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
730		ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
731		mask_keycode = 0x00003F;
732		mask_keyup   = 0x400000;
733		polling      = 50; // ms
734		break;
735	case SAA7134_BOARD_PROTEUS_2309:
736		ir_codes     = RC_MAP_PROTEUS_2309;
737		mask_keycode = 0x00007F;
738		mask_keyup   = 0x000080;
739		polling      = 50; // ms
740		break;
741	case SAA7134_BOARD_VIDEOMATE_DVBT_300:
742	case SAA7134_BOARD_VIDEOMATE_DVBT_200:
743		ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
744		mask_keycode = 0x003F00;
745		mask_keyup   = 0x040000;
746		break;
747	case SAA7134_BOARD_FLYDVBS_LR300:
748	case SAA7134_BOARD_FLYDVBT_LR301:
749	case SAA7134_BOARD_FLYDVBTDUO:
750		ir_codes     = RC_MAP_FLYDVB;
751		mask_keycode = 0x0001F00;
752		mask_keydown = 0x0040000;
753		break;
754	case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
755	case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
756	case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
757		ir_codes     = RC_MAP_ASUS_PC39;
758		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
759		mask_keyup   = 0x0040000;
760		mask_keycode = 0xffff;
761		raw_decode   = true;
762		break;
763	case SAA7134_BOARD_ASUSTeK_PS3_100:
764		ir_codes     = RC_MAP_ASUS_PS3_100;
765		mask_keydown = 0x0040000;
766		mask_keyup   = 0x0040000;
767		mask_keycode = 0xffff;
768		raw_decode   = true;
769		break;
770	case SAA7134_BOARD_ENCORE_ENLTV:
771	case SAA7134_BOARD_ENCORE_ENLTV_FM:
772		ir_codes     = RC_MAP_ENCORE_ENLTV;
773		mask_keycode = 0x00007f;
774		mask_keyup   = 0x040000;
775		polling      = 50; // ms
776		break;
777	case SAA7134_BOARD_ENCORE_ENLTV_FM53:
778	case SAA7134_BOARD_ENCORE_ENLTV_FM3:
779		ir_codes     = RC_MAP_ENCORE_ENLTV_FM53;
780		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
781		mask_keyup   = 0x0040000;
782		mask_keycode = 0xffff;
783		raw_decode   = true;
784		break;
785	case SAA7134_BOARD_10MOONSTVMASTER3:
786		ir_codes     = RC_MAP_ENCORE_ENLTV;
787		mask_keycode = 0x5f80000;
788		mask_keyup   = 0x8000000;
789		polling      = 50; //ms
790		break;
791	case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
792		ir_codes     = RC_MAP_GENIUS_TVGO_A11MCE;
793		mask_keycode = 0xff;
794		mask_keydown = 0xf00000;
795		polling = 50; /* ms */
796		break;
797	case SAA7134_BOARD_REAL_ANGEL_220:
798		ir_codes     = RC_MAP_REAL_AUDIO_220_32_KEYS;
799		mask_keycode = 0x3f00;
800		mask_keyup   = 0x4000;
801		polling = 50; /* ms */
802		break;
803	case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
804		ir_codes     = RC_MAP_KWORLD_PLUS_TV_ANALOG;
805		mask_keycode = 0x7f;
806		polling = 40; /* ms */
807		break;
808	case SAA7134_BOARD_VIDEOMATE_S350:
809		ir_codes     = RC_MAP_VIDEOMATE_S350;
810		mask_keycode = 0x003f00;
811		mask_keydown = 0x040000;
812		break;
813	case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
814		ir_codes     = RC_MAP_WINFAST;
815		mask_keycode = 0x5f00;
816		mask_keyup   = 0x020000;
817		polling      = 50; /* ms */
818		break;
819	case SAA7134_BOARD_VIDEOMATE_M1F:
820		ir_codes     = RC_MAP_VIDEOMATE_K100;
821		mask_keycode = 0x0ff00;
822		mask_keyup   = 0x040000;
823		break;
824	case SAA7134_BOARD_HAUPPAUGE_HVR1150:
825	case SAA7134_BOARD_HAUPPAUGE_HVR1120:
826		ir_codes     = RC_MAP_HAUPPAUGE;
827		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
828		mask_keyup   = 0x0040000;
829		mask_keycode = 0xffff;
830		raw_decode   = true;
831		break;
832	}
833	if (NULL == ir_codes) {
834		printk("%s: Oops: IR config error [card=%d]\n",
835		       dev->name, dev->board);
836		return -ENODEV;
837	}
838
839	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
840	rc = rc_allocate_device();
841	if (!ir || !rc) {
842		err = -ENOMEM;
843		goto err_out_free;
844	}
845
846	ir->dev = rc;
847	dev->remote = ir;
848
849	/* init hardware-specific stuff */
850	ir->mask_keycode = mask_keycode;
851	ir->mask_keydown = mask_keydown;
852	ir->mask_keyup   = mask_keyup;
853	ir->polling      = polling;
854	ir->raw_decode	 = raw_decode;
855
856	/* init input device */
857	snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
858		 saa7134_boards[dev->board].name);
859	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
860		 pci_name(dev->pci));
861
862	rc->priv = dev;
863	rc->open = saa7134_ir_open;
864	rc->close = saa7134_ir_close;
865	if (raw_decode)
866		rc->driver_type = RC_DRIVER_IR_RAW;
867
868	rc->input_name = ir->name;
869	rc->input_phys = ir->phys;
870	rc->input_id.bustype = BUS_PCI;
871	rc->input_id.version = 1;
872	if (dev->pci->subsystem_vendor) {
873		rc->input_id.vendor  = dev->pci->subsystem_vendor;
874		rc->input_id.product = dev->pci->subsystem_device;
875	} else {
876		rc->input_id.vendor  = dev->pci->vendor;
877		rc->input_id.product = dev->pci->device;
878	}
879	rc->dev.parent = &dev->pci->dev;
880	rc->map_name = ir_codes;
881	rc->driver_name = MODULE_NAME;
882
883	err = rc_register_device(rc);
884	if (err)
885		goto err_out_free;
886
887	return 0;
888
889err_out_free:
890	rc_free_device(rc);
891	dev->remote = NULL;
892	kfree(ir);
893	return err;
894}
895
896void saa7134_input_fini(struct saa7134_dev *dev)
897{
898	if (NULL == dev->remote)
899		return;
900
901	saa7134_ir_stop(dev);
902	rc_unregister_device(dev->remote->dev);
903	kfree(dev->remote);
904	dev->remote = NULL;
905}
906
907void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
908{
909	struct i2c_board_info info;
910	struct i2c_msg msg_msi = {
911		.addr = 0x50,
912		.flags = I2C_M_RD,
913		.len = 0,
914		.buf = NULL,
915	};
916	int rc;
917
918	if (disable_ir) {
919		dprintk("IR has been disabled, not probing for i2c remote\n");
920		return;
921	}
922
923	memset(&info, 0, sizeof(struct i2c_board_info));
924	memset(&dev->init_data, 0, sizeof(dev->init_data));
925	strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
926
927	switch (dev->board) {
928	case SAA7134_BOARD_PINNACLE_PCTV_110i:
929	case SAA7134_BOARD_PINNACLE_PCTV_310i:
930		dev->init_data.name = "Pinnacle PCTV";
931		if (pinnacle_remote == 0) {
932			dev->init_data.get_key = get_key_pinnacle_color;
933			dev->init_data.ir_codes = RC_MAP_PINNACLE_COLOR;
934			info.addr = 0x47;
935		} else {
936			dev->init_data.get_key = get_key_pinnacle_grey;
937			dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY;
938			info.addr = 0x47;
939		}
940		break;
941	case SAA7134_BOARD_UPMOST_PURPLE_TV:
942		dev->init_data.name = "Purple TV";
943		dev->init_data.get_key = get_key_purpletv;
944		dev->init_data.ir_codes = RC_MAP_PURPLETV;
945		info.addr = 0x7a;
946		break;
947	case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
948		dev->init_data.name = "MSI TV@nywhere Plus";
949		dev->init_data.get_key = get_key_msi_tvanywhere_plus;
950		dev->init_data.ir_codes = RC_MAP_MSI_TVANYWHERE_PLUS;
951		/*
952		 * MSI TV@nyware Plus requires more frequent polling
953		 * otherwise it will miss some keypresses
954		 */
955		dev->init_data.polling_interval = 50;
956		info.addr = 0x30;
957		/* MSI TV@nywhere Plus controller doesn't seem to
958		   respond to probes unless we read something from
959		   an existing device. Weird...
960		   REVISIT: might no longer be needed */
961		rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
962		dprintk("probe 0x%02x @ %s: %s\n",
963			msg_msi.addr, dev->i2c_adap.name,
964			(1 == rc) ? "yes" : "no");
965		break;
966	case SAA7134_BOARD_KWORLD_PC150U:
967		/* copied and modified from MSI TV@nywhere Plus */
968		dev->init_data.name = "Kworld PC150-U";
969		dev->init_data.get_key = get_key_kworld_pc150u;
970		dev->init_data.ir_codes = RC_MAP_KWORLD_PC150U;
971		info.addr = 0x30;
972		/* MSI TV@nywhere Plus controller doesn't seem to
973		   respond to probes unless we read something from
974		   an existing device. Weird...
975		   REVISIT: might no longer be needed */
976		rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
977		dprintk("probe 0x%02x @ %s: %s\n",
978			msg_msi.addr, dev->i2c_adap.name,
979			(1 == rc) ? "yes" : "no");
980		break;
981	case SAA7134_BOARD_HAUPPAUGE_HVR1110:
982		dev->init_data.name = "HVR 1110";
983		dev->init_data.get_key = get_key_hvr1110;
984		dev->init_data.ir_codes = RC_MAP_HAUPPAUGE;
985		info.addr = 0x71;
986		break;
987	case SAA7134_BOARD_BEHOLD_607FM_MK3:
988	case SAA7134_BOARD_BEHOLD_607FM_MK5:
989	case SAA7134_BOARD_BEHOLD_609FM_MK3:
990	case SAA7134_BOARD_BEHOLD_609FM_MK5:
991	case SAA7134_BOARD_BEHOLD_607RDS_MK3:
992	case SAA7134_BOARD_BEHOLD_607RDS_MK5:
993	case SAA7134_BOARD_BEHOLD_609RDS_MK3:
994	case SAA7134_BOARD_BEHOLD_609RDS_MK5:
995	case SAA7134_BOARD_BEHOLD_M6:
996	case SAA7134_BOARD_BEHOLD_M63:
997	case SAA7134_BOARD_BEHOLD_M6_EXTRA:
998	case SAA7134_BOARD_BEHOLD_H6:
999	case SAA7134_BOARD_BEHOLD_X7:
1000	case SAA7134_BOARD_BEHOLD_H7:
1001	case SAA7134_BOARD_BEHOLD_A7:
1002		dev->init_data.name = "BeholdTV";
1003		dev->init_data.get_key = get_key_beholdm6xx;
1004		dev->init_data.ir_codes = RC_MAP_BEHOLD;
1005		dev->init_data.type = RC_BIT_NEC;
1006		info.addr = 0x2d;
1007		break;
1008	case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
1009	case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
1010		info.addr = 0x40;
1011		break;
1012	case SAA7134_BOARD_AVERMEDIA_A706:
1013		info.addr = 0x41;
1014		break;
1015	case SAA7134_BOARD_FLYDVB_TRIO:
1016		dev->init_data.name = "FlyDVB Trio";
1017		dev->init_data.get_key = get_key_flydvb_trio;
1018		dev->init_data.ir_codes = RC_MAP_FLYDVB;
1019		info.addr = 0x0b;
1020		break;
1021	default:
1022		dprintk("No I2C IR support for board %x\n", dev->board);
1023		return;
1024	}
1025
1026	if (dev->init_data.name)
1027		info.platform_data = &dev->init_data;
1028	i2c_new_device(&dev->i2c_adap, &info);
1029}
1030
1031static int saa7134_raw_decode_irq(struct saa7134_dev *dev)
1032{
1033	struct saa7134_card_ir *ir = dev->remote;
1034	unsigned long timeout;
1035	int space;
1036
1037	/* Generate initial event */
1038	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1039	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
1040	space = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
1041	ir_raw_event_store_edge(dev->remote->dev, space ? IR_SPACE : IR_PULSE);
1042
1043	/*
1044	 * Wait 15 ms from the start of the first IR event before processing
1045	 * the event. This time is enough for NEC protocol. May need adjustments
1046	 * to work with other protocols.
1047	 */
1048	smp_mb();
1049
1050	if (!timer_pending(&ir->timer)) {
1051		timeout = jiffies + msecs_to_jiffies(15);
1052		mod_timer(&ir->timer, timeout);
1053	}
1054
1055	return 1;
1056}
1057