Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[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/moduleparam.h>
23 #include <linux/init.h>
24 #include <linux/delay.h>
25 #include <linux/interrupt.h>
26 #include <linux/input.h>
27
28 #include "saa7134-reg.h"
29 #include "saa7134.h"
30
31 static unsigned int disable_ir = 0;
32 module_param(disable_ir, int, 0444);
33 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
34
35 static unsigned int ir_debug = 0;
36 module_param(ir_debug, int, 0644);
37 MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
38
39 static int pinnacle_remote = 0;
40 module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
41 MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
42
43 static int ir_rc5_remote_gap = 885;
44 module_param(ir_rc5_remote_gap, int, 0644);
45 static int ir_rc5_key_timeout = 115;
46 module_param(ir_rc5_key_timeout, int, 0644);
47
48 #define dprintk(fmt, arg...)    if (ir_debug) \
49         printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
50 #define i2cdprintk(fmt, arg...)    if (ir_debug) \
51         printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
52
53 /** rc5 functions */
54 static int saa7134_rc5_irq(struct saa7134_dev *dev);
55
56 /* -------------------- GPIO generic keycode builder -------------------- */
57
58 static int build_key(struct saa7134_dev *dev)
59 {
60         struct card_ir *ir = dev->remote;
61         u32 gpio, data;
62
63         /* rising SAA7134_GPIO_GPRESCAN reads the status */
64         saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
65         saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
66
67         gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
68         if (ir->polling) {
69                 if (ir->last_gpio == gpio)
70                         return 0;
71                 ir->last_gpio = gpio;
72         }
73
74         data = ir_extract_bits(gpio, ir->mask_keycode);
75         dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
76                 gpio, ir->mask_keycode, data);
77
78         if (ir->polling) {
79                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
80                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
81                         ir_input_keydown(ir->dev, &ir->ir, data, data);
82                 } else {
83                         ir_input_nokey(ir->dev, &ir->ir);
84                 }
85         }
86         else {  /* IRQ driven mode - handle key press and release in one go */
87                 if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
88                     (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
89                         ir_input_keydown(ir->dev, &ir->ir, data, data);
90                         ir_input_nokey(ir->dev, &ir->ir);
91                 }
92         }
93
94         return 0;
95 }
96
97 /* --------------------- Chip specific I2C key builders ----------------- */
98
99 static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
100 {
101         unsigned char b;
102
103         /* poll IR chip */
104         if (1 != i2c_master_recv(&ir->c,&b,1)) {
105                 i2cdprintk("read error\n");
106                 return -EIO;
107         }
108
109         /* no button press */
110         if (b==0)
111                 return 0;
112
113         /* repeating */
114         if (b & 0x80)
115                 return 1;
116
117         *ir_key = b;
118         *ir_raw = b;
119         return 1;
120 }
121
122 static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
123 {
124         unsigned char buf[5], cod4, code3, code4;
125
126         /* poll IR chip */
127         if (5 != i2c_master_recv(&ir->c,buf,5))
128                 return -EIO;
129
130         cod4    = buf[4];
131         code4   = (cod4 >> 2);
132         code3   = buf[3];
133         if (code3 == 0)
134                 /* no key pressed */
135                 return 0;
136
137         /* return key */
138         *ir_key = code4;
139         *ir_raw = code4;
140         return 1;
141 }
142
143 void saa7134_input_irq(struct saa7134_dev *dev)
144 {
145         struct card_ir *ir = dev->remote;
146
147         if (!ir->polling && !ir->rc5_gpio) {
148                 build_key(dev);
149         } else if (ir->rc5_gpio) {
150                 saa7134_rc5_irq(dev);
151         }
152 }
153
154 static void saa7134_input_timer(unsigned long data)
155 {
156         struct saa7134_dev *dev = (struct saa7134_dev *)data;
157         struct card_ir *ir = dev->remote;
158
159         build_key(dev);
160         mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
161 }
162
163 static void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
164 {
165         if (ir->polling) {
166                 setup_timer(&ir->timer, saa7134_input_timer,
167                             (unsigned long)dev);
168                 ir->timer.expires  = jiffies + HZ;
169                 add_timer(&ir->timer);
170         } else if (ir->rc5_gpio) {
171                 /* set timer_end for code completion */
172                 init_timer(&ir->timer_end);
173                 ir->timer_end.function = ir_rc5_timer_end;
174                 ir->timer_end.data = (unsigned long)ir;
175                 init_timer(&ir->timer_keyup);
176                 ir->timer_keyup.function = ir_rc5_timer_keyup;
177                 ir->timer_keyup.data = (unsigned long)ir;
178                 ir->shift_by = 2;
179                 ir->start = 0x2;
180                 ir->addr = 0x17;
181                 ir->rc5_key_timeout = ir_rc5_key_timeout;
182                 ir->rc5_remote_gap = ir_rc5_remote_gap;
183         }
184 }
185
186 static void saa7134_ir_stop(struct saa7134_dev *dev)
187 {
188         if (dev->remote->polling)
189                 del_timer_sync(&dev->remote->timer);
190 }
191
192 int saa7134_input_init1(struct saa7134_dev *dev)
193 {
194         struct card_ir *ir;
195         struct input_dev *input_dev;
196         IR_KEYTAB_TYPE *ir_codes = NULL;
197         u32 mask_keycode = 0;
198         u32 mask_keydown = 0;
199         u32 mask_keyup   = 0;
200         int polling      = 0;
201         int rc5_gpio     = 0;
202         int ir_type      = IR_TYPE_OTHER;
203         int err;
204
205         if (dev->has_remote != SAA7134_REMOTE_GPIO)
206                 return -ENODEV;
207         if (disable_ir)
208                 return -ENODEV;
209
210         /* detect & configure */
211         switch (dev->board) {
212         case SAA7134_BOARD_FLYVIDEO2000:
213         case SAA7134_BOARD_FLYVIDEO3000:
214         case SAA7134_BOARD_FLYTVPLATINUM_FM:
215         case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
216                 ir_codes     = ir_codes_flyvideo;
217                 mask_keycode = 0xEC00000;
218                 mask_keydown = 0x0040000;
219                 break;
220         case SAA7134_BOARD_CINERGY400:
221         case SAA7134_BOARD_CINERGY600:
222         case SAA7134_BOARD_CINERGY600_MK3:
223                 ir_codes     = ir_codes_cinergy;
224                 mask_keycode = 0x00003f;
225                 mask_keyup   = 0x040000;
226                 break;
227         case SAA7134_BOARD_ECS_TVP3XP:
228         case SAA7134_BOARD_ECS_TVP3XP_4CB5:
229                 ir_codes     = ir_codes_eztv;
230                 mask_keycode = 0x00017c;
231                 mask_keyup   = 0x000002;
232                 polling      = 50; // ms
233                 break;
234         case SAA7134_BOARD_KWORLD_XPERT:
235         case SAA7134_BOARD_AVACSSMARTTV:
236                 ir_codes     = ir_codes_pixelview;
237                 mask_keycode = 0x00001F;
238                 mask_keyup   = 0x000020;
239                 polling      = 50; // ms
240                 break;
241         case SAA7134_BOARD_MD2819:
242         case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
243         case SAA7134_BOARD_AVERMEDIA_305:
244         case SAA7134_BOARD_AVERMEDIA_307:
245         case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
246         case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
247         case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
248         case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
249                 ir_codes     = ir_codes_avermedia;
250                 mask_keycode = 0x0007C8;
251                 mask_keydown = 0x000010;
252                 polling      = 50; // ms
253                 /* Set GPIO pin2 to high to enable the IR controller */
254                 saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
255                 saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
256                 break;
257         case SAA7134_BOARD_AVERMEDIA_777:
258         case SAA7134_BOARD_AVERMEDIA_A16AR:
259                 ir_codes     = ir_codes_avermedia;
260                 mask_keycode = 0x02F200;
261                 mask_keydown = 0x000400;
262                 polling      = 50; // ms
263                 /* Without this we won't receive key up events */
264                 saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
265                 saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
266                 break;
267         case SAA7134_BOARD_KWORLD_TERMINATOR:
268                 ir_codes     = ir_codes_pixelview;
269                 mask_keycode = 0x00001f;
270                 mask_keyup   = 0x000060;
271                 polling      = 50; // ms
272                 break;
273         case SAA7134_BOARD_MANLI_MTV001:
274         case SAA7134_BOARD_MANLI_MTV002:
275         case SAA7134_BOARD_BEHOLD_409FM:
276                 ir_codes     = ir_codes_manli;
277                 mask_keycode = 0x001f00;
278                 mask_keyup   = 0x004000;
279                 polling      = 50; // ms
280                 break;
281         case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
282                 ir_codes     = ir_codes_pctv_sedna;
283                 mask_keycode = 0x001f00;
284                 mask_keyup   = 0x004000;
285                 polling      = 50; // ms
286                 break;
287         case SAA7134_BOARD_GOTVIEW_7135:
288                 ir_codes     = ir_codes_gotview7135;
289                 mask_keycode = 0x0003EC;
290                 mask_keyup   = 0x008000;
291                 mask_keydown = 0x000010;
292                 polling      = 50; // ms
293                 break;
294         case SAA7134_BOARD_VIDEOMATE_TV_PVR:
295         case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
296         case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
297                 ir_codes     = ir_codes_videomate_tv_pvr;
298                 mask_keycode = 0x00003F;
299                 mask_keyup   = 0x400000;
300                 polling      = 50; // ms
301                 break;
302         case SAA7134_BOARD_PROTEUS_2309:
303                 ir_codes     = ir_codes_proteus_2309;
304                 mask_keycode = 0x00007F;
305                 mask_keyup   = 0x000080;
306                 polling      = 50; // ms
307                 break;
308         case SAA7134_BOARD_VIDEOMATE_DVBT_300:
309         case SAA7134_BOARD_VIDEOMATE_DVBT_200:
310                 ir_codes     = ir_codes_videomate_tv_pvr;
311                 mask_keycode = 0x003F00;
312                 mask_keyup   = 0x040000;
313                 break;
314         case SAA7134_BOARD_FLYDVBS_LR300:
315         case SAA7134_BOARD_FLYDVBT_LR301:
316         case SAA7134_BOARD_FLYDVBTDUO:
317                 ir_codes     = ir_codes_flydvb;
318                 mask_keycode = 0x0001F00;
319                 mask_keydown = 0x0040000;
320                 break;
321         case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
322         case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
323                 ir_codes     = ir_codes_asus_pc39;
324                 mask_keydown = 0x0040000;
325                 rc5_gpio = 1;
326                 break;
327         case SAA7134_BOARD_ENCORE_ENLTV:
328         case SAA7134_BOARD_ENCORE_ENLTV_FM:
329                 ir_codes     = ir_codes_encore_enltv;
330                 mask_keycode = 0x00007f;
331                 mask_keyup   = 0x040000;
332                 polling      = 50; // ms
333                 break;
334         case SAA7134_BOARD_10MOONSTVMASTER3:
335                 ir_codes     = ir_codes_encore_enltv;
336                 mask_keycode = 0x5f80000;
337                 mask_keyup   = 0x8000000;
338                 polling      = 50; //ms
339                 break;
340         }
341         if (NULL == ir_codes) {
342                 printk("%s: Oops: IR config error [card=%d]\n",
343                        dev->name, dev->board);
344                 return -ENODEV;
345         }
346
347         ir = kzalloc(sizeof(*ir), GFP_KERNEL);
348         input_dev = input_allocate_device();
349         if (!ir || !input_dev) {
350                 err = -ENOMEM;
351                 goto err_out_free;
352         }
353
354         ir->dev = input_dev;
355
356         /* init hardware-specific stuff */
357         ir->mask_keycode = mask_keycode;
358         ir->mask_keydown = mask_keydown;
359         ir->mask_keyup   = mask_keyup;
360         ir->polling      = polling;
361         ir->rc5_gpio     = rc5_gpio;
362
363         /* init input device */
364         snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
365                  saa7134_boards[dev->board].name);
366         snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
367                  pci_name(dev->pci));
368
369         ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
370         input_dev->name = ir->name;
371         input_dev->phys = ir->phys;
372         input_dev->id.bustype = BUS_PCI;
373         input_dev->id.version = 1;
374         if (dev->pci->subsystem_vendor) {
375                 input_dev->id.vendor  = dev->pci->subsystem_vendor;
376                 input_dev->id.product = dev->pci->subsystem_device;
377         } else {
378                 input_dev->id.vendor  = dev->pci->vendor;
379                 input_dev->id.product = dev->pci->device;
380         }
381         input_dev->dev.parent = &dev->pci->dev;
382
383         dev->remote = ir;
384         saa7134_ir_start(dev, ir);
385
386         err = input_register_device(ir->dev);
387         if (err)
388                 goto err_out_stop;
389
390         return 0;
391
392  err_out_stop:
393         saa7134_ir_stop(dev);
394         dev->remote = NULL;
395  err_out_free:
396         input_free_device(input_dev);
397         kfree(ir);
398         return err;
399 }
400
401 void saa7134_input_fini(struct saa7134_dev *dev)
402 {
403         if (NULL == dev->remote)
404                 return;
405
406         saa7134_ir_stop(dev);
407         input_unregister_device(dev->remote->dev);
408         kfree(dev->remote);
409         dev->remote = NULL;
410 }
411
412 void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir)
413 {
414         if (disable_ir) {
415                 dprintk("Found supported i2c remote, but IR has been disabled\n");
416                 ir->get_key=NULL;
417                 return;
418         }
419
420         switch (dev->board) {
421         case SAA7134_BOARD_PINNACLE_PCTV_110i:
422         case SAA7134_BOARD_PINNACLE_PCTV_310i:
423                 snprintf(ir->c.name, sizeof(ir->c.name), "Pinnacle PCTV");
424                 if (pinnacle_remote == 0) {
425                         ir->get_key   = get_key_pinnacle_color;
426                         ir->ir_codes = ir_codes_pinnacle_color;
427                 } else {
428                         ir->get_key   = get_key_pinnacle_grey;
429                         ir->ir_codes = ir_codes_pinnacle_grey;
430                 }
431                 break;
432         case SAA7134_BOARD_UPMOST_PURPLE_TV:
433                 snprintf(ir->c.name, sizeof(ir->c.name), "Purple TV");
434                 ir->get_key   = get_key_purpletv;
435                 ir->ir_codes  = ir_codes_purpletv;
436                 break;
437         case SAA7134_BOARD_HAUPPAUGE_HVR1110:
438                 snprintf(ir->c.name, sizeof(ir->c.name), "HVR 1110");
439                 ir->get_key   = get_key_hvr1110;
440                 ir->ir_codes  = ir_codes_hauppauge_new;
441                 break;
442         default:
443                 dprintk("Shouldn't get here: Unknown board %x for I2C IR?\n",dev->board);
444                 break;
445         }
446
447 }
448
449 static int saa7134_rc5_irq(struct saa7134_dev *dev)
450 {
451         struct card_ir *ir = dev->remote;
452         struct timeval tv;
453         u32 gap;
454         unsigned long current_jiffies, timeout;
455
456         /* get time of bit */
457         current_jiffies = jiffies;
458         do_gettimeofday(&tv);
459
460         /* avoid overflow with gap >1s */
461         if (tv.tv_sec - ir->base_time.tv_sec > 1) {
462                 gap = 200000;
463         } else {
464                 gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
465                     tv.tv_usec - ir->base_time.tv_usec;
466         }
467
468         /* active code => add bit */
469         if (ir->active) {
470                 /* only if in the code (otherwise spurious IRQ or timer
471                    late) */
472                 if (ir->last_bit < 28) {
473                         ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
474                             ir_rc5_remote_gap;
475                         ir->code |= 1 << ir->last_bit;
476                 }
477                 /* starting new code */
478         } else {
479                 ir->active = 1;
480                 ir->code = 0;
481                 ir->base_time = tv;
482                 ir->last_bit = 0;
483
484                 timeout = current_jiffies + (500 + 30 * HZ) / 1000;
485                 mod_timer(&ir->timer_end, timeout);
486         }
487
488         return 1;
489 }
490
491 /* ----------------------------------------------------------------------
492  * Local variables:
493  * c-basic-offset: 8
494  * End:
495  */