Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
[linux-2.6] / drivers / media / video / saa7134 / saa7134-input.c
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/input.h>
26
27 #include "saa7134-reg.h"
28 #include "saa7134.h"
29
30 static unsigned int disable_ir = 0;
31 module_param(disable_ir, int, 0444);
32 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
33
34 static unsigned int ir_debug = 0;
35 module_param(ir_debug, int, 0644);
36 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
37
38 static int pinnacle_remote = 0;
39 module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
40 MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
41
42 static int ir_rc5_remote_gap = 885;
43 module_param(ir_rc5_remote_gap, int, 0644);
44 static int ir_rc5_key_timeout = 115;
45 module_param(ir_rc5_key_timeout, int, 0644);
46
47 #define dprintk(fmt, arg...)    if (ir_debug) \
48         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
49 #define i2cdprintk(fmt, arg...)    if (ir_debug) \
50         printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
51
52 /** rc5 functions */
53 static int saa7134_rc5_irq(struct saa7134_dev *dev);
54
55 /* -------------------- GPIO generic keycode builder -------------------- */
56
57 static int build_key(struct saa7134_dev *dev)
58 {
59         struct card_ir *ir = dev->remote;
60         u32 gpio, data;
61
62         /* rising SAA7134_GPIO_GPRESCAN reads the status */
63         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
64         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
65
66         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
67         if (ir->polling) {
68                 if (ir->last_gpio == gpio)
69                         return 0;
70                 ir->last_gpio = gpio;
71         }
72
73         data = ir_extract_bits(gpio, ir->mask_keycode);
74         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
75                 gpio, ir->mask_keycode, data);
76
77         if (ir->polling) {
78                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
79                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
80                         ir_input_keydown(ir->dev, &ir->ir, data, data);
81                 } else {
82                         ir_input_nokey(ir->dev, &ir->ir);
83                 }
84         }
85         else {  /* IRQ driven mode - handle key press and release in one go */
86                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
87                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
88                         ir_input_keydown(ir->dev, &ir->ir, data, data);
89                         ir_input_nokey(ir->dev, &ir->ir);
90                 }
91         }
92
93         return 0;
94 }
95
96 /* --------------------- Chip specific I2C key builders ----------------- */
97
98 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
99 {
100         unsigned char b;
101
102         /* poll IR chip */
103         if (1 != i2c_master_recv(&ir->c,&b,1)) {
104                 i2cdprintk("read error\n");
105                 return -EIO;
106         }
107
108         /* no button press */
109         if (b==0)
110                 return 0;
111
112         /* repeating */
113         if (b & 0x80)
114                 return 1;
115
116         *ir_key = b;
117         *ir_raw = b;
118         return 1;
119 }
120
121 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
122 {
123         unsigned char buf[5], cod4, code3, code4;
124
125         /* poll IR chip */
126         if (5 != i2c_master_recv(&ir->c,buf,5))
127                 return -EIO;
128
129         cod4    = buf[4];
130         code4   = (cod4 >> 2);
131         code3   = buf[3];
132         if (code3 == 0)
133                 /* no key pressed */
134                 return 0;
135
136         /* return key */
137         *ir_key = code4;
138         *ir_raw = code4;
139         return 1;
140 }
141
142 void saa7134_input_irq(struct saa7134_dev *dev)
143 {
144         struct card_ir *ir = dev->remote;
145
146         if (!ir->polling && !ir->rc5_gpio) {
147                 build_key(dev);
148         } else if (ir->rc5_gpio) {
149                 saa7134_rc5_irq(dev);
150         }
151 }
152
153 static void saa7134_input_timer(unsigned long data)
154 {
155         struct saa7134_dev *dev = (struct saa7134_dev *)data;
156         struct card_ir *ir = dev->remote;
157
158         build_key(dev);
159         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
160 }
161
162 static void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
163 {
164         if (ir->polling) {
165                 setup_timer(&ir->timer, saa7134_input_timer,
166                             (unsigned long)dev);
167                 ir->timer.expires  = jiffies + HZ;
168                 add_timer(&ir->timer);
169         } else if (ir->rc5_gpio) {
170                 /* set timer_end for code completion */
171                 init_timer(&ir->timer_end);
172                 ir->timer_end.function = ir_rc5_timer_end;
173                 ir->timer_end.data = (unsigned long)ir;
174                 init_timer(&ir->timer_keyup);
175                 ir->timer_keyup.function = ir_rc5_timer_keyup;
176                 ir->timer_keyup.data = (unsigned long)ir;
177                 ir->shift_by = 2;
178                 ir->start = 0x2;
179                 ir->addr = 0x17;
180                 ir->rc5_key_timeout = ir_rc5_key_timeout;
181                 ir->rc5_remote_gap = ir_rc5_remote_gap;
182         }
183 }
184
185 static void saa7134_ir_stop(struct saa7134_dev *dev)
186 {
187         if (dev->remote->polling)
188                 del_timer_sync(&dev->remote->timer);
189 }
190
191 int saa7134_input_init1(struct saa7134_dev *dev)
192 {
193         struct card_ir *ir;
194         struct input_dev *input_dev;
195         IR_KEYTAB_TYPE *ir_codes = NULL;
196         u32 mask_keycode = 0;
197         u32 mask_keydown = 0;
198         u32 mask_keyup   = 0;
199         int polling      = 0;
200         int rc5_gpio     = 0;
201         int ir_type      = IR_TYPE_OTHER;
202         int err;
203
204         if (dev->has_remote != SAA7134_REMOTE_GPIO)
205                 return -ENODEV;
206         if (disable_ir)
207                 return -ENODEV;
208
209         /* detect & configure */
210         switch (dev->board) {
211         case SAA7134_BOARD_FLYVIDEO2000:
212         case SAA7134_BOARD_FLYVIDEO3000:
213         case SAA7134_BOARD_FLYTVPLATINUM_FM:
214         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
215                 ir_codes     = ir_codes_flyvideo;
216                 mask_keycode = 0xEC00000;
217                 mask_keydown = 0x0040000;
218                 break;
219         case SAA7134_BOARD_CINERGY400:
220         case SAA7134_BOARD_CINERGY600:
221         case SAA7134_BOARD_CINERGY600_MK3:
222                 ir_codes     = ir_codes_cinergy;
223                 mask_keycode = 0x00003f;
224                 mask_keyup   = 0x040000;
225                 break;
226         case SAA7134_BOARD_ECS_TVP3XP:
227         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
228                 ir_codes     = ir_codes_eztv;
229                 mask_keycode = 0x00017c;
230                 mask_keyup   = 0x000002;
231                 polling      = 50; // ms
232                 break;
233         case SAA7134_BOARD_KWORLD_XPERT:
234         case SAA7134_BOARD_AVACSSMARTTV:
235                 ir_codes     = ir_codes_pixelview;
236                 mask_keycode = 0x00001F;
237                 mask_keyup   = 0x000020;
238                 polling      = 50; // ms
239                 break;
240         case SAA7134_BOARD_MD2819:
241         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
242         case SAA7134_BOARD_AVERMEDIA_305:
243         case SAA7134_BOARD_AVERMEDIA_307:
244         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
245         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
246         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
247         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
248                 ir_codes     = ir_codes_avermedia;
249                 mask_keycode = 0x0007C8;
250                 mask_keydown = 0x000010;
251                 polling      = 50; // ms
252                 /* Set GPIO pin2 to high to enable the IR controller */
253                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
254                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
255                 break;
256         case SAA7134_BOARD_AVERMEDIA_777:
257         case SAA7134_BOARD_AVERMEDIA_A16AR:
258                 ir_codes     = ir_codes_avermedia;
259                 mask_keycode = 0x02F200;
260                 mask_keydown = 0x000400;
261                 polling      = 50; // ms
262                 /* Without this we won't receive key up events */
263                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
264                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
265                 break;
266         case SAA7134_BOARD_KWORLD_TERMINATOR:
267                 ir_codes     = ir_codes_pixelview;
268                 mask_keycode = 0x00001f;
269                 mask_keyup   = 0x000060;
270                 polling      = 50; // ms
271                 break;
272         case SAA7134_BOARD_MANLI_MTV001:
273         case SAA7134_BOARD_MANLI_MTV002:
274         case SAA7134_BOARD_BEHOLD_409FM:
275                 ir_codes     = ir_codes_manli;
276                 mask_keycode = 0x001f00;
277                 mask_keyup   = 0x004000;
278                 polling      = 50; // ms
279                 break;
280         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
281                 ir_codes     = ir_codes_pctv_sedna;
282                 mask_keycode = 0x001f00;
283                 mask_keyup   = 0x004000;
284                 polling      = 50; // ms
285                 break;
286         case SAA7134_BOARD_GOTVIEW_7135:
287                 ir_codes     = ir_codes_gotview7135;
288                 mask_keycode = 0x0003EC;
289                 mask_keyup   = 0x008000;
290                 mask_keydown = 0x000010;
291                 polling      = 50; // ms
292                 break;
293         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
294         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
295         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
296                 ir_codes     = ir_codes_videomate_tv_pvr;
297                 mask_keycode = 0x00003F;
298                 mask_keyup   = 0x400000;
299                 polling      = 50; // ms
300                 break;
301         case SAA7134_BOARD_PROTEUS_2309:
302                 ir_codes     = ir_codes_proteus_2309;
303                 mask_keycode = 0x00007F;
304                 mask_keyup   = 0x000080;
305                 polling      = 50; // ms
306                 break;
307         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
308         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
309                 ir_codes     = ir_codes_videomate_tv_pvr;
310                 mask_keycode = 0x003F00;
311                 mask_keyup   = 0x040000;
312                 break;
313         case SAA7134_BOARD_FLYDVBS_LR300:
314         case SAA7134_BOARD_FLYDVBT_LR301:
315         case SAA7134_BOARD_FLYDVBTDUO:
316                 ir_codes     = ir_codes_flydvb;
317                 mask_keycode = 0x0001F00;
318                 mask_keydown = 0x0040000;
319                 break;
320         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
321         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
322                 ir_codes     = ir_codes_asus_pc39;
323                 mask_keydown = 0x0040000;
324                 rc5_gpio = 1;
325                 break;
326         case SAA7134_BOARD_ENCORE_ENLTV:
327         case SAA7134_BOARD_ENCORE_ENLTV_FM:
328                 ir_codes     = ir_codes_encore_enltv;
329                 mask_keycode = 0x00007f;
330                 mask_keyup   = 0x040000;
331                 polling      = 50; // ms
332                 break;
333         case SAA7134_BOARD_10MOONSTVMASTER3:
334                 ir_codes     = ir_codes_encore_enltv;
335                 mask_keycode = 0x5f80000;
336                 mask_keyup   = 0x8000000;
337                 polling      = 50; //ms
338                 break;
339         }
340         if (NULL == ir_codes) {
341                 printk("%s: Oops: IR config error [card=%d]\n",
342                        dev->name, dev->board);
343                 return -ENODEV;
344         }
345
346         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
347         input_dev = input_allocate_device();
348         if (!ir || !input_dev) {
349                 err = -ENOMEM;
350                 goto err_out_free;
351         }
352
353         ir->dev = input_dev;
354
355         /* init hardware-specific stuff */
356         ir->mask_keycode = mask_keycode;
357         ir->mask_keydown = mask_keydown;
358         ir->mask_keyup   = mask_keyup;
359         ir->polling      = polling;
360         ir->rc5_gpio     = rc5_gpio;
361
362         /* init input device */
363         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
364                  saa7134_boards[dev->board].name);
365         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
366                  pci_name(dev->pci));
367
368         ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
369         input_dev->name = ir->name;
370         input_dev->phys = ir->phys;
371         input_dev->id.bustype = BUS_PCI;
372         input_dev->id.version = 1;
373         if (dev->pci->subsystem_vendor) {
374                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
375                 input_dev->id.product = dev->pci->subsystem_device;
376         } else {
377                 input_dev->id.vendor  = dev->pci->vendor;
378                 input_dev->id.product = dev->pci->device;
379         }
380         input_dev->dev.parent = &dev->pci->dev;
381
382         dev->remote = ir;
383         saa7134_ir_start(dev, ir);
384
385         err = input_register_device(ir->dev);
386         if (err)
387                 goto err_out_stop;
388
389         return 0;
390
391  err_out_stop:
392         saa7134_ir_stop(dev);
393         dev->remote = NULL;
394  err_out_free:
395         input_free_device(input_dev);
396         kfree(ir);
397         return err;
398 }
399
400 void saa7134_input_fini(struct saa7134_dev *dev)
401 {
402         if (NULL == dev->remote)
403                 return;
404
405         saa7134_ir_stop(dev);
406         input_unregister_device(dev->remote->dev);
407         kfree(dev->remote);
408         dev->remote = NULL;
409 }
410
411 void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir)
412 {
413         if (disable_ir) {
414                 dprintk("Found supported i2c remote, but IR has been disabled\n");
415                 ir->get_key=NULL;
416                 return;
417         }
418
419         switch (dev->board) {
420         case SAA7134_BOARD_PINNACLE_PCTV_110i:
421         case SAA7134_BOARD_PINNACLE_PCTV_310i:
422                 snprintf(ir->c.name, sizeof(ir->c.name), "Pinnacle PCTV");
423                 if (pinnacle_remote == 0) {
424                         ir->get_key   = get_key_pinnacle_color;
425                         ir->ir_codes = ir_codes_pinnacle_color;
426                 } else {
427                         ir->get_key   = get_key_pinnacle_grey;
428                         ir->ir_codes = ir_codes_pinnacle_grey;
429                 }
430                 break;
431         case SAA7134_BOARD_UPMOST_PURPLE_TV:
432                 snprintf(ir->c.name, sizeof(ir->c.name), "Purple TV");
433                 ir->get_key   = get_key_purpletv;
434                 ir->ir_codes  = ir_codes_purpletv;
435                 break;
436         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
437                 snprintf(ir->c.name, sizeof(ir->c.name), "HVR 1110");
438                 ir->get_key   = get_key_hvr1110;
439                 ir->ir_codes  = ir_codes_hauppauge_new;
440                 break;
441         default:
442                 dprintk("Shouldn't get here: Unknown board %x for I2C IR?\n",dev->board);
443                 break;
444         }
445
446 }
447
448 static int saa7134_rc5_irq(struct saa7134_dev *dev)
449 {
450         struct card_ir *ir = dev->remote;
451         struct timeval tv;
452         u32 gap;
453         unsigned long current_jiffies, timeout;
454
455         /* get time of bit */
456         current_jiffies = jiffies;
457         do_gettimeofday(&tv);
458
459         /* avoid overflow with gap >1s */
460         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
461                 gap = 200000;
462         } else {
463                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
464                     tv.tv_usec - ir->base_time.tv_usec;
465         }
466
467         /* active code => add bit */
468         if (ir->active) {
469                 /* only if in the code (otherwise spurious IRQ or timer
470                    late) */
471                 if (ir->last_bit < 28) {
472                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
473                             ir_rc5_remote_gap;
474                         ir->code |= 1 << ir->last_bit;
475                 }
476                 /* starting new code */
477         } else {
478                 ir->active = 1;
479                 ir->code = 0;
480                 ir->base_time = tv;
481                 ir->last_bit = 0;
482
483                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
484                 mod_timer(&ir->timer_end, timeout);
485         }
486
487         return 1;
488 }
489
490 /* ----------------------------------------------------------------------
491  * Local variables:
492  * c-basic-offset: 8
493  * End:
494  */