Merge master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6] / drivers / media / video / msp3400-driver.c
1 /*
2  * Programming the mspx4xx sound processor family
3  *
4  * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
5  *
6  * what works and what doesn't:
7  *
8  *  AM-Mono
9  *      Support for Hauppauge cards added (decoding handled by tuner) added by
10  *      Frederic Crozat <fcrozat@mail.dotcom.fr>
11  *
12  *  FM-Mono
13  *      should work. The stereo modes are backward compatible to FM-mono,
14  *      therefore FM-Mono should be allways available.
15  *
16  *  FM-Stereo (B/G, used in germany)
17  *      should work, with autodetect
18  *
19  *  FM-Stereo (satellite)
20  *      should work, no autodetect (i.e. default is mono, but you can
21  *      switch to stereo -- untested)
22  *
23  *  NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
24  *      should work, with autodetect. Support for NICAM was added by
25  *      Pekka Pietikainen <pp@netppl.fi>
26  *
27  * TODO:
28  *   - better SAT support
29  *
30  * 980623  Thomas Sailer (sailer@ife.ee.ethz.ch)
31  *         using soundcore instead of OSS
32  *
33  * This program is free software; you can redistribute it and/or
34  * modify it under the terms of the GNU General Public License
35  * as published by the Free Software Foundation; either version 2
36  * of the License, or (at your option) any later version.
37  *
38  * This program is distributed in the hope that it will be useful,
39  * but WITHOUT ANY WARRANTY; without even the implied warranty of
40  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
41  * GNU General Public License for more details.
42  *
43  * You should have received a copy of the GNU General Public License
44  * along with this program; if not, write to the Free Software
45  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
46  */
47
48
49 #include <linux/kernel.h>
50 #include <linux/module.h>
51 #include <linux/slab.h>
52 #include <linux/i2c.h>
53 #include <linux/videodev.h>
54 #include <linux/videodev2.h>
55 #include <media/v4l2-common.h>
56 #include <media/audiochip.h>
57 #include <linux/kthread.h>
58 #include <linux/suspend.h>
59 #include "msp3400.h"
60
61 /* ---------------------------------------------------------------------- */
62
63 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
64 MODULE_AUTHOR("Gerd Knorr");
65 MODULE_LICENSE("GPL");
66
67 /* module parameters */
68 static int opmode   = OPMODE_AUTO;
69 int msp_debug;           /* msp_debug output */
70 int msp_once;            /* no continous stereo monitoring */
71 int msp_amsound;         /* hard-wire AM sound at 6.5 Hz (france),
72                             the autoscan seems work well only with FM... */
73 int msp_standard = 1;    /* Override auto detect of audio msp_standard, if needed. */
74 int msp_dolby;
75
76 int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
77                                         (msp34xxg only) 0x00a0-0x03c0 */
78
79 /* read-only */
80 module_param(opmode,           int, 0444);
81
82 /* read-write */
83 module_param_named(once,msp_once,                      bool, 0644);
84 module_param_named(debug,msp_debug,                    int,  0644);
85 module_param_named(stereo_threshold,msp_stereo_thresh, int,  0644);
86 module_param_named(standard,msp_standard,              int,  0644);
87 module_param_named(amsound,msp_amsound,                bool, 0644);
88 module_param_named(dolby,msp_dolby,                    bool, 0644);
89
90 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
91 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
92 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
93 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
94 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
95 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
96 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
97
98 /* ---------------------------------------------------------------------- */
99
100 /* control subaddress */
101 #define I2C_MSP_CONTROL 0x00
102 /* demodulator unit subaddress */
103 #define I2C_MSP_DEM     0x10
104 /* DSP unit subaddress */
105 #define I2C_MSP_DSP     0x12
106
107 /* Addresses to scan */
108 static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
109 I2C_CLIENT_INSMOD;
110
111 /* ----------------------------------------------------------------------- */
112 /* functions for talking to the MSP3400C Sound processor                   */
113
114 int msp_reset(struct i2c_client *client)
115 {
116         /* reset and read revision code */
117         static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
118         static u8 reset_on[3]  = { I2C_MSP_CONTROL, 0x00, 0x00 };
119         static u8 write[3]     = { I2C_MSP_DSP + 1, 0x00, 0x1e };
120         u8 read[2];
121         struct i2c_msg reset[2] = {
122                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
123                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on  },
124         };
125         struct i2c_msg test[2] = {
126                 { client->addr, 0,        3, write },
127                 { client->addr, I2C_M_RD, 2, read  },
128         };
129
130         v4l_dbg(3, msp_debug, client, "msp_reset\n");
131         if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
132             i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
133             i2c_transfer(client->adapter, test, 2) != 2) {
134                 v4l_err(client, "chip reset failed\n");
135                 return -1;
136         }
137         return 0;
138 }
139
140 static int msp_read(struct i2c_client *client, int dev, int addr)
141 {
142         int err, retval;
143         u8 write[3];
144         u8 read[2];
145         struct i2c_msg msgs[2] = {
146                 { client->addr, 0,        3, write },
147                 { client->addr, I2C_M_RD, 2, read  }
148         };
149
150         write[0] = dev + 1;
151         write[1] = addr >> 8;
152         write[2] = addr & 0xff;
153
154         for (err = 0; err < 3; err++) {
155                 if (i2c_transfer(client->adapter, msgs, 2) == 2)
156                         break;
157                 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
158                        dev, addr);
159                 current->state = TASK_INTERRUPTIBLE;
160                 schedule_timeout(msecs_to_jiffies(10));
161         }
162         if (err == 3) {
163                 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
164                 msp_reset(client);
165                 return -1;
166         }
167         retval = read[0] << 8 | read[1];
168         v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
169         return retval;
170 }
171
172 int msp_read_dem(struct i2c_client *client, int addr)
173 {
174         return msp_read(client, I2C_MSP_DEM, addr);
175 }
176
177 int msp_read_dsp(struct i2c_client *client, int addr)
178 {
179         return msp_read(client, I2C_MSP_DSP, addr);
180 }
181
182 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
183 {
184         int err;
185         u8 buffer[5];
186
187         buffer[0] = dev;
188         buffer[1] = addr >> 8;
189         buffer[2] = addr &  0xff;
190         buffer[3] = val  >> 8;
191         buffer[4] = val  &  0xff;
192
193         v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
194         for (err = 0; err < 3; err++) {
195                 if (i2c_master_send(client, buffer, 5) == 5)
196                         break;
197                 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
198                        dev, addr);
199                 current->state = TASK_INTERRUPTIBLE;
200                 schedule_timeout(msecs_to_jiffies(10));
201         }
202         if (err == 3) {
203                 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
204                 msp_reset(client);
205                 return -1;
206         }
207         return 0;
208 }
209
210 int msp_write_dem(struct i2c_client *client, int addr, int val)
211 {
212         return msp_write(client, I2C_MSP_DEM, addr, val);
213 }
214
215 int msp_write_dsp(struct i2c_client *client, int addr, int val)
216 {
217         return msp_write(client, I2C_MSP_DSP, addr, val);
218 }
219
220 /* ----------------------------------------------------------------------- *
221  * bits  9  8  5 - SCART DSP input Select:
222  *       0  0  0 - SCART 1 to DSP input (reset position)
223  *       0  1  0 - MONO to DSP input
224  *       1  0  0 - SCART 2 to DSP input
225  *       1  1  1 - Mute DSP input
226  *
227  * bits 11 10  6 - SCART 1 Output Select:
228  *       0  0  0 - undefined (reset position)
229  *       0  1  0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
230  *       1  0  0 - MONO input to SCART 1 Output
231  *       1  1  0 - SCART 1 DA to SCART 1 Output
232  *       0  0  1 - SCART 2 DA to SCART 1 Output
233  *       0  1  1 - SCART 1 Input to SCART 1 Output
234  *       1  1  1 - Mute SCART 1 Output
235  *
236  * bits 13 12  7 - SCART 2 Output Select (for devices with 2 Output SCART):
237  *       0  0  0 - SCART 1 DA to SCART 2 Output (reset position)
238  *       0  1  0 - SCART 1 Input to SCART 2 Output
239  *       1  0  0 - MONO input to SCART 2 Output
240  *       0  0  1 - SCART 2 DA to SCART 2 Output
241  *       0  1  1 - SCART 2 Input to SCART 2 Output
242  *       1  1  0 - Mute SCART 2 Output
243  *
244  * Bits 4 to 0 should be zero.
245  * ----------------------------------------------------------------------- */
246
247 static int scarts[3][9] = {
248         /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
249         /* SCART DSP Input select */
250         { 0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
251         /* SCART1 Output select */
252         { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
253         /* SCART2 Output select */
254         { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
255 };
256
257 static char *scart_names[] = {
258         "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
259 };
260
261 void msp_set_scart(struct i2c_client *client, int in, int out)
262 {
263         struct msp_state *state = i2c_get_clientdata(client);
264
265         state->in_scart=in;
266
267         if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
268                 if (-1 == scarts[out][in])
269                         return;
270
271                 state->acb &= ~scarts[out][SCART_MASK];
272                 state->acb |=  scarts[out][in];
273         } else
274                 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
275
276         v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
277                                                 scart_names[in], out, state->acb);
278         msp_write_dsp(client, 0x13, state->acb);
279
280         /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
281         msp_write_dem(client, 0x40, state->i2s_mode);
282 }
283
284 void msp_set_mute(struct i2c_client *client)
285 {
286         struct msp_state *state = i2c_get_clientdata(client);
287
288         v4l_dbg(1, msp_debug, client, "mute audio\n");
289         msp_write_dsp(client, 0x0000, 0);
290         msp_write_dsp(client, 0x0007, 1);
291         if (state->has_scart2_out_volume)
292                 msp_write_dsp(client, 0x0040, 1);
293         if (state->has_headphones)
294                 msp_write_dsp(client, 0x0006, 0);
295 }
296
297 void msp_set_audio(struct i2c_client *client)
298 {
299         struct msp_state *state = i2c_get_clientdata(client);
300         int bal = 0, bass, treble, loudness;
301         int val = 0;
302
303         if (!state->muted)
304                 val = (state->volume * 0x7f / 65535) << 8;
305
306         v4l_dbg(1, msp_debug, client, "mute=%s volume=%d\n",
307                 state->muted ? "on" : "off", state->volume);
308
309         msp_write_dsp(client, 0x0000, val);
310         msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
311         if (state->has_scart2_out_volume)
312                 msp_write_dsp(client, 0x0040, state->muted ? 0x1 : (val | 0x1));
313         if (state->has_headphones)
314                 msp_write_dsp(client, 0x0006, val);
315         if (!state->has_sound_processing)
316                 return;
317
318         if (val)
319                 bal = (u8)((state->balance / 256) - 128);
320         bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
321         treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
322         loudness = state->loudness ? ((5 * 4) << 8) : 0;
323
324         v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
325                 state->balance, state->bass, state->treble, state->loudness);
326
327         msp_write_dsp(client, 0x0001, bal << 8);
328         msp_write_dsp(client, 0x0002, bass);
329         msp_write_dsp(client, 0x0003, treble);
330         msp_write_dsp(client, 0x0004, loudness);
331         if (!state->has_headphones)
332                 return;
333         msp_write_dsp(client, 0x0030, bal << 8);
334         msp_write_dsp(client, 0x0031, bass);
335         msp_write_dsp(client, 0x0032, treble);
336         msp_write_dsp(client, 0x0033, loudness);
337 }
338
339 int msp_modus(struct i2c_client *client)
340 {
341         struct msp_state *state = i2c_get_clientdata(client);
342
343         if (state->radio) {
344                 v4l_dbg(1, msp_debug, client, "video mode selected to Radio\n");
345                 return 0x0003;
346         }
347
348         if (state->v4l2_std & V4L2_STD_PAL) {
349                 v4l_dbg(1, msp_debug, client, "video mode selected to PAL\n");
350
351 #if 1
352                 /* experimental: not sure this works with all chip versions */
353                 return 0x7003;
354 #else
355                 /* previous value, try this if it breaks ... */
356                 return 0x1003;
357 #endif
358         }
359         if (state->v4l2_std & V4L2_STD_NTSC) {
360                 v4l_dbg(1, msp_debug, client, "video mode selected to NTSC\n");
361                 return 0x2003;
362         }
363         if (state->v4l2_std & V4L2_STD_SECAM) {
364                 v4l_dbg(1, msp_debug, client, "video mode selected to SECAM\n");
365                 return 0x0003;
366         }
367         return 0x0003;
368 }
369
370 /* ------------------------------------------------------------------------ */
371
372
373 static void msp_wake_thread(struct i2c_client *client)
374 {
375         struct msp_state *state = i2c_get_clientdata(client);
376
377         if (NULL == state->kthread)
378                 return;
379         msp_set_mute(client);
380         state->watch_stereo = 0;
381         state->restart = 1;
382         wake_up_interruptible(&state->wq);
383 }
384
385 int msp_sleep(struct msp_state *state, int timeout)
386 {
387         DECLARE_WAITQUEUE(wait, current);
388
389         add_wait_queue(&state->wq, &wait);
390         if (!kthread_should_stop()) {
391                 if (timeout < 0) {
392                         set_current_state(TASK_INTERRUPTIBLE);
393                         schedule();
394                 } else {
395                         schedule_timeout_interruptible
396                                                 (msecs_to_jiffies(timeout));
397                 }
398         }
399
400         remove_wait_queue(&state->wq, &wait);
401         try_to_freeze();
402         return state->restart;
403 }
404
405 /* ------------------------------------------------------------------------ */
406
407 static int msp_mode_v4l2_to_v4l1(int rxsubchans)
408 {
409         int mode = 0;
410
411         if (rxsubchans & V4L2_TUNER_SUB_STEREO)
412                 mode |= VIDEO_SOUND_STEREO;
413         if (rxsubchans & V4L2_TUNER_SUB_LANG2)
414                 mode |= VIDEO_SOUND_LANG2 | VIDEO_SOUND_STEREO;
415         if (rxsubchans & V4L2_TUNER_SUB_LANG1)
416                 mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_STEREO;
417         if (mode == 0)
418                 mode |= VIDEO_SOUND_MONO;
419         return mode;
420 }
421
422 static int msp_mode_v4l1_to_v4l2(int mode)
423 {
424         if (mode & VIDEO_SOUND_STEREO)
425                 return V4L2_TUNER_MODE_STEREO;
426         if (mode & VIDEO_SOUND_LANG2)
427                 return V4L2_TUNER_MODE_LANG2;
428         if (mode & VIDEO_SOUND_LANG1)
429                 return V4L2_TUNER_MODE_LANG1;
430         return V4L2_TUNER_MODE_MONO;
431 }
432
433 static struct v4l2_queryctrl msp_qctrl_std[] = {
434         {
435                 .id            = V4L2_CID_AUDIO_VOLUME,
436                 .name          = "Volume",
437                 .minimum       = 0,
438                 .maximum       = 65535,
439                 .step          = 65535/100,
440                 .default_value = 58880,
441                 .flags         = 0,
442                 .type          = V4L2_CTRL_TYPE_INTEGER,
443         },{
444                 .id            = V4L2_CID_AUDIO_MUTE,
445                 .name          = "Mute",
446                 .minimum       = 0,
447                 .maximum       = 1,
448                 .step          = 1,
449                 .default_value = 1,
450                 .flags         = 0,
451                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
452         },
453 };
454
455 static struct v4l2_queryctrl msp_qctrl_sound_processing[] = {
456         {
457                 .id            = V4L2_CID_AUDIO_BALANCE,
458                 .name          = "Balance",
459                 .minimum       = 0,
460                 .maximum       = 65535,
461                 .step          = 65535/100,
462                 .default_value = 32768,
463                 .flags         = 0,
464                 .type          = V4L2_CTRL_TYPE_INTEGER,
465         },{
466                 .id            = V4L2_CID_AUDIO_BASS,
467                 .name          = "Bass",
468                 .minimum       = 0,
469                 .maximum       = 65535,
470                 .step          = 65535/100,
471                 .default_value = 32768,
472                 .type          = V4L2_CTRL_TYPE_INTEGER,
473         },{
474                 .id            = V4L2_CID_AUDIO_TREBLE,
475                 .name          = "Treble",
476                 .minimum       = 0,
477                 .maximum       = 65535,
478                 .step          = 65535/100,
479                 .default_value = 32768,
480                 .type          = V4L2_CTRL_TYPE_INTEGER,
481         },{
482                 .id            = V4L2_CID_AUDIO_LOUDNESS,
483                 .name          = "Loudness",
484                 .minimum       = 0,
485                 .maximum       = 1,
486                 .step          = 1,
487                 .default_value = 1,
488                 .flags         = 0,
489                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
490         },
491 };
492
493
494 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
495 {
496         struct msp_state *state = i2c_get_clientdata(client);
497
498         switch (ctrl->id) {
499         case V4L2_CID_AUDIO_VOLUME:
500                 ctrl->value = state->volume;
501                 break;
502
503         case V4L2_CID_AUDIO_MUTE:
504                 ctrl->value = state->muted;
505                 break;
506
507         case V4L2_CID_AUDIO_BALANCE:
508                 if (!state->has_sound_processing)
509                         return -EINVAL;
510                 ctrl->value = state->balance;
511                 break;
512
513         case V4L2_CID_AUDIO_BASS:
514                 if (!state->has_sound_processing)
515                         return -EINVAL;
516                 ctrl->value = state->bass;
517                 break;
518
519         case V4L2_CID_AUDIO_TREBLE:
520                 if (!state->has_sound_processing)
521                         return -EINVAL;
522                 ctrl->value = state->treble;
523                 break;
524
525         case V4L2_CID_AUDIO_LOUDNESS:
526                 if (!state->has_sound_processing)
527                         return -EINVAL;
528                 ctrl->value = state->loudness;
529                 break;
530
531         default:
532                 return -EINVAL;
533         }
534         return 0;
535 }
536
537 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
538 {
539         struct msp_state *state = i2c_get_clientdata(client);
540
541         switch (ctrl->id) {
542         case V4L2_CID_AUDIO_VOLUME:
543                 state->volume = ctrl->value;
544                 if (state->volume == 0)
545                         state->balance = 32768;
546                 break;
547
548         case V4L2_CID_AUDIO_MUTE:
549                 if (ctrl->value < 0 || ctrl->value >= 2)
550                         return -ERANGE;
551                 state->muted = ctrl->value;
552                 break;
553
554         case V4L2_CID_AUDIO_BASS:
555                 if (!state->has_sound_processing)
556                         return -EINVAL;
557                 state->bass = ctrl->value;
558                 break;
559
560         case V4L2_CID_AUDIO_TREBLE:
561                 if (!state->has_sound_processing)
562                         return -EINVAL;
563                 state->treble = ctrl->value;
564                 break;
565
566         case V4L2_CID_AUDIO_LOUDNESS:
567                 if (!state->has_sound_processing)
568                         return -EINVAL;
569                 state->loudness = ctrl->value;
570                 break;
571
572         case V4L2_CID_AUDIO_BALANCE:
573                 if (!state->has_sound_processing)
574                         return -EINVAL;
575                 state->balance = ctrl->value;
576                 break;
577
578         default:
579                 return -EINVAL;
580         }
581         msp_set_audio(client);
582         return 0;
583 }
584
585 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
586 {
587         struct msp_state *state = i2c_get_clientdata(client);
588         u16 *sarg = arg;
589         int scart = 0;
590
591         if (msp_debug >= 2)
592                 v4l_i2c_print_ioctl(client, cmd);
593
594         switch (cmd) {
595         case AUDC_SET_INPUT:
596                 if (*sarg == state->input)
597                         break;
598                 state->input = *sarg;
599                 switch (*sarg) {
600                 case AUDIO_RADIO:
601                         /* Hauppauge uses IN2 for the radio */
602                         state->mode = MSP_MODE_FM_RADIO;
603                         scart       = SCART_IN2;
604                         break;
605                 case AUDIO_EXTERN_1:
606                         /* IN1 is often used for external input ... */
607                         state->mode = MSP_MODE_EXTERN;
608                         scart       = SCART_IN1;
609                         break;
610                 case AUDIO_EXTERN_2:
611                         /* ... sometimes it is IN2 through ;) */
612                         state->mode = MSP_MODE_EXTERN;
613                         scart       = SCART_IN2;
614                         break;
615                 case AUDIO_TUNER:
616                         state->mode = -1;
617                         break;
618                 default:
619                         if (*sarg & AUDIO_MUTE)
620                                 msp_set_scart(client, SCART_MUTE, 0);
621                         break;
622                 }
623                 if (scart) {
624                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
625                         msp_set_scart(client, scart, 0);
626                         msp_write_dsp(client, 0x000d, 0x1900);
627                         if (state->opmode != OPMODE_AUTOSELECT)
628                                 msp_set_audmode(client);
629                 }
630                 msp_wake_thread(client);
631                 break;
632
633         case AUDC_SET_RADIO:
634                 if (state->radio)
635                         return 0;
636                 state->radio = 1;
637                 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
638                 state->watch_stereo = 0;
639                 switch (state->opmode) {
640                 case OPMODE_MANUAL:
641                         /* set msp3400 to FM radio mode */
642                         msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
643                         msp3400c_set_carrier(client, MSP_CARRIER(10.7),
644                                             MSP_CARRIER(10.7));
645                         msp_set_audio(client);
646                         break;
647                 case OPMODE_AUTODETECT:
648                 case OPMODE_AUTOSELECT:
649                         /* the thread will do for us */
650                         msp_wake_thread(client);
651                         break;
652                 }
653                 break;
654
655         /* --- v4l ioctls --- */
656         /* take care: bttv does userspace copying, we'll get a
657            kernel pointer here... */
658         case VIDIOCGAUDIO:
659         {
660                 struct video_audio *va = arg;
661
662                 va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
663                 if (state->has_sound_processing)
664                         va->flags |= VIDEO_AUDIO_BALANCE |
665                                 VIDEO_AUDIO_BASS |
666                                 VIDEO_AUDIO_TREBLE;
667                 if (state->muted)
668                         va->flags |= VIDEO_AUDIO_MUTE;
669                 va->volume = state->volume;
670                 va->balance = state->volume ? state->balance : 32768;
671                 va->bass = state->bass;
672                 va->treble = state->treble;
673
674                 if (state->radio)
675                         break;
676                 if (state->opmode == OPMODE_AUTOSELECT)
677                         msp_detect_stereo(client);
678                 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
679                 break;
680         }
681
682         case VIDIOCSAUDIO:
683         {
684                 struct video_audio *va = arg;
685
686                 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
687                 state->volume = va->volume;
688                 state->balance = va->balance;
689                 state->bass = va->bass;
690                 state->treble = va->treble;
691                 msp_set_audio(client);
692
693                 if (va->mode != 0 && state->radio == 0) {
694                         state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
695                 }
696                 break;
697         }
698
699         case VIDIOCSCHAN:
700         {
701                 struct video_channel *vc = arg;
702                 int update = 0;
703                 v4l2_std_id std;
704
705                 if (state->radio)
706                         update = 1;
707                 state->radio = 0;
708                 if (vc->norm == VIDEO_MODE_PAL)
709                         std = V4L2_STD_PAL;
710                 else if (vc->norm == VIDEO_MODE_SECAM)
711                         std = V4L2_STD_SECAM;
712                 else
713                         std = V4L2_STD_NTSC;
714                 if (std != state->v4l2_std) {
715                         state->v4l2_std = std;
716                         update = 1;
717                 }
718                 if (update)
719                         msp_wake_thread(client);
720                 break;
721         }
722
723         case VIDIOCSFREQ:
724         case VIDIOC_S_FREQUENCY:
725         {
726                 /* new channel -- kick audio carrier scan */
727                 msp_wake_thread(client);
728                 break;
729         }
730
731         /* msp34xx specific */
732         case MSP_SET_MATRIX:
733         {
734                 struct msp_matrix *mspm = arg;
735
736                 msp_set_scart(client, mspm->input, mspm->output);
737                 break;
738         }
739
740         /* --- v4l2 ioctls --- */
741         case VIDIOC_S_STD:
742         {
743                 v4l2_std_id *id = arg;
744                 int update = state->radio || state->v4l2_std != *id;
745
746                 state->v4l2_std = *id;
747                 state->radio = 0;
748                 if (update)
749                         msp_wake_thread(client);
750                 return 0;
751         }
752
753         case VIDIOC_ENUMINPUT:
754         {
755                 struct v4l2_input *i = arg;
756
757                 if (i->index != 0)
758                         return -EINVAL;
759
760                 i->type = V4L2_INPUT_TYPE_TUNER;
761                 switch (i->index) {
762                 case AUDIO_RADIO:
763                         strcpy(i->name, "Radio");
764                         break;
765                 case AUDIO_EXTERN_1:
766                         strcpy(i->name, "Extern 1");
767                         break;
768                 case AUDIO_EXTERN_2:
769                         strcpy(i->name, "Extern 2");
770                         break;
771                 case AUDIO_TUNER:
772                         strcpy(i->name, "Television");
773                         break;
774                 default:
775                         return -EINVAL;
776                 }
777                 return 0;
778         }
779
780         case VIDIOC_G_AUDIO:
781         {
782                 struct v4l2_audio *a = arg;
783
784                 memset(a, 0, sizeof(*a));
785
786                 switch (a->index) {
787                 case AUDIO_RADIO:
788                         strcpy(a->name, "Radio");
789                         break;
790                 case AUDIO_EXTERN_1:
791                         strcpy(a->name, "Extern 1");
792                         break;
793                 case AUDIO_EXTERN_2:
794                         strcpy(a->name, "Extern 2");
795                         break;
796                 case AUDIO_TUNER:
797                         strcpy(a->name, "Television");
798                         break;
799                 default:
800                         return -EINVAL;
801                 }
802
803                 a->capability = V4L2_AUDCAP_STEREO;
804                 a->mode = 0;  /* TODO: add support for AVL */
805                 break;
806         }
807
808         case VIDIOC_S_AUDIO:
809         {
810                 struct v4l2_audio *sarg = arg;
811
812                 switch (sarg->index) {
813                 case AUDIO_RADIO:
814                         /* Hauppauge uses IN2 for the radio */
815                         state->mode = MSP_MODE_FM_RADIO;
816                         scart       = SCART_IN2;
817                         break;
818                 case AUDIO_EXTERN_1:
819                         /* IN1 is often used for external input ... */
820                         state->mode = MSP_MODE_EXTERN;
821                         scart       = SCART_IN1;
822                         break;
823                 case AUDIO_EXTERN_2:
824                         /* ... sometimes it is IN2 through ;) */
825                         state->mode = MSP_MODE_EXTERN;
826                         scart       = SCART_IN2;
827                         break;
828                 case AUDIO_TUNER:
829                         state->mode = -1;
830                         break;
831                 }
832                 if (scart) {
833                         state->rxsubchans = V4L2_TUNER_SUB_STEREO;
834                         msp_set_scart(client, scart, 0);
835                         msp_write_dsp(client, 0x000d, 0x1900);
836                 }
837                 msp_set_audmode(client);
838                 msp_wake_thread(client);
839                 break;
840         }
841
842         case VIDIOC_G_TUNER:
843         {
844                 struct v4l2_tuner *vt = arg;
845
846                 if (state->radio)
847                         break;
848                 if (state->opmode == OPMODE_AUTOSELECT)
849                         msp_detect_stereo(client);
850                 vt->audmode    = state->audmode;
851                 vt->rxsubchans = state->rxsubchans;
852                 vt->capability = V4L2_TUNER_CAP_STEREO |
853                         V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
854                 break;
855         }
856
857         case VIDIOC_S_TUNER:
858         {
859                 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
860
861                 if (state->radio)  /* TODO: add mono/stereo support for radio */
862                         break;
863                 state->audmode = vt->audmode;
864                 /* only set audmode */
865                 msp_set_audmode(client);
866                 break;
867         }
868
869         case VIDIOC_G_AUDOUT:
870         {
871                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
872                 int idx = a->index;
873
874                 memset(a, 0, sizeof(*a));
875
876                 switch (idx) {
877                 case 0:
878                         strcpy(a->name, "Scart1 Out");
879                         break;
880                 case 1:
881                         strcpy(a->name, "Scart2 Out");
882                         break;
883                 case 2:
884                         strcpy(a->name, "I2S Out");
885                         break;
886                 default:
887                         return -EINVAL;
888                 }
889                 break;
890         }
891
892         case VIDIOC_S_AUDOUT:
893         {
894                 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
895
896                 if (a->index < 0 || a->index > 2)
897                         return -EINVAL;
898
899                 v4l_dbg(1, msp_debug, client, "Setting audio out on msp34xx to input %i\n", a->index);
900                 msp_set_scart(client, state->in_scart, a->index + 1);
901
902                 break;
903         }
904
905         case VIDIOC_INT_I2S_CLOCK_FREQ:
906         {
907                 u32 *a = (u32 *)arg;
908
909                 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
910
911                 switch (*a) {
912                         case 1024000:
913                                 state->i2s_mode = 0;
914                                 break;
915                         case 2048000:
916                                 state->i2s_mode = 1;
917                                 break;
918                         default:
919                                 return -EINVAL;
920                 }
921                 break;
922         }
923
924         case VIDIOC_QUERYCTRL:
925         {
926                 struct v4l2_queryctrl *qc = arg;
927                 int i;
928
929                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_std); i++)
930                         if (qc->id && qc->id == msp_qctrl_std[i].id) {
931                                 memcpy(qc, &msp_qctrl_std[i], sizeof(*qc));
932                                 return 0;
933                         }
934                 if (!state->has_sound_processing)
935                         return -EINVAL;
936                 for (i = 0; i < ARRAY_SIZE(msp_qctrl_sound_processing); i++)
937                         if (qc->id && qc->id == msp_qctrl_sound_processing[i].id) {
938                                 memcpy(qc, &msp_qctrl_sound_processing[i], sizeof(*qc));
939                                 return 0;
940                         }
941                 return -EINVAL;
942         }
943
944         case VIDIOC_G_CTRL:
945                 return msp_get_ctrl(client, arg);
946
947         case VIDIOC_S_CTRL:
948                 return msp_set_ctrl(client, arg);
949
950         case VIDIOC_LOG_STATUS:
951         {
952                 const char *p;
953
954                 if (state->opmode == OPMODE_AUTOSELECT)
955                         msp_detect_stereo(client);
956                 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
957                                 client->name, state->rev1, state->rev2);
958                 v4l_info(client, "Audio:    volume %d%s\n",
959                                 state->volume, state->muted ? " (muted)" : "");
960                 if (state->has_sound_processing) {
961                         v4l_info(client, "Audio:    balance %d bass %d treble %d loudness %s\n",
962                                         state->balance, state->bass, state->treble,
963                                         state->loudness ? "on" : "off");
964                 }
965                 switch (state->mode) {
966                 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
967                 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
968                 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
969                 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
970                 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
971                 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
972                 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
973                 case MSP_MODE_BTSC: p = "BTSC"; break;
974                 case MSP_MODE_EXTERN: p = "External input"; break;
975                 default: p = "unknown"; break;
976                 }
977                 if (state->opmode == OPMODE_MANUAL) {
978                         v4l_info(client, "Mode:     %s (%s%s)\n", p,
979                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
980                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
981                 } else {
982                         v4l_info(client, "Mode:     %s\n", p);
983                         v4l_info(client, "Standard: %s (%s%s)\n",
984                                 msp_standard_std_name(state->std),
985                                 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
986                                 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
987                 }
988                 v4l_info(client, "ACB:      0x%04x\n", state->acb);
989                 break;
990         }
991
992         default:
993                 /* unknown */
994                 return -EINVAL;
995         }
996         return 0;
997 }
998
999 static int msp_suspend(struct device * dev, pm_message_t state)
1000 {
1001         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1002
1003         v4l_dbg(1, msp_debug, client, "suspend\n");
1004         msp_reset(client);
1005         return 0;
1006 }
1007
1008 static int msp_resume(struct device * dev)
1009 {
1010         struct i2c_client *client = container_of(dev, struct i2c_client, dev);
1011
1012         v4l_dbg(1, msp_debug, client, "resume\n");
1013         msp_wake_thread(client);
1014         return 0;
1015 }
1016
1017 /* ----------------------------------------------------------------------- */
1018
1019 static struct i2c_driver i2c_driver;
1020
1021 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
1022 {
1023         struct i2c_client *client;
1024         struct msp_state *state;
1025         int (*thread_func)(void *data) = NULL;
1026         int msp_hard;
1027         int msp_family;
1028         int msp_revision;
1029         int msp_product, msp_prod_hi, msp_prod_lo;
1030         int msp_rom;
1031
1032         client = kmalloc(sizeof(*client), GFP_KERNEL);
1033         if (client == NULL)
1034                 return -ENOMEM;
1035         memset(client, 0, sizeof(*client));
1036         client->addr = address;
1037         client->adapter = adapter;
1038         client->driver = &i2c_driver;
1039         snprintf(client->name, sizeof(client->name) - 1, "msp3400");
1040
1041         if (msp_reset(client) == -1) {
1042                 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
1043                 kfree(client);
1044                 return -1;
1045         }
1046
1047         state = kmalloc(sizeof(*state), GFP_KERNEL);
1048         if (state == NULL) {
1049                 kfree(client);
1050                 return -ENOMEM;
1051         }
1052         i2c_set_clientdata(client, state);
1053
1054         memset(state, 0, sizeof(*state));
1055         state->v4l2_std = V4L2_STD_NTSC;
1056         state->audmode = V4L2_TUNER_MODE_LANG1;
1057         state->volume = 58880;  /* 0db gain */
1058         state->balance = 32768; /* 0db gain */
1059         state->bass = 32768;
1060         state->treble = 32768;
1061         state->loudness = 0;
1062         state->input = -1;
1063         state->muted = 0;
1064         state->i2s_mode = 0;
1065         init_waitqueue_head(&state->wq);
1066
1067         state->rev1 = msp_read_dsp(client, 0x1e);
1068         if (state->rev1 != -1)
1069                 state->rev2 = msp_read_dsp(client, 0x1f);
1070         v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
1071         if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
1072                 v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
1073                 kfree(state);
1074                 kfree(client);
1075                 return -1;
1076         }
1077
1078         msp_set_audio(client);
1079
1080         msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
1081         msp_product = (state->rev2 >> 8) & 0xff;
1082         msp_prod_hi = msp_product / 10;
1083         msp_prod_lo = msp_product % 10;
1084         msp_revision = (state->rev1 & 0x0f) + '@';
1085         msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
1086         msp_rom = state->rev2 & 0x1f;
1087         snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
1088                         msp_family, msp_product,
1089                         msp_revision, msp_hard, msp_rom);
1090
1091         /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
1092         state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
1093         /* Has radio support: was added with revision G */
1094         state->has_radio = msp_revision >= 'G';
1095         /* Has headphones output: not for stripped down products */
1096         state->has_headphones = msp_prod_lo < 5;
1097         /* Has scart4 input: not in pre D revisions, not in stripped D revs */
1098         state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
1099         /* Has scart2 and scart3 inputs and scart2 output: not in stripped
1100            down products of the '3' family */
1101         state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
1102         /* Has scart2 a volume control? Not in pre-D revisions. */
1103         state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart23_in_scart2_out;
1104         /* Has a configurable i2s out? */
1105         state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
1106         /* Has subwoofer output: not in pre-D revs and not in stripped down products */
1107         state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
1108         /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
1109            stripped down products */
1110         state->has_sound_processing = msp_prod_lo < 7;
1111         /* Has Virtual Dolby Surround: only in msp34x1 */
1112         state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
1113         /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
1114         state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
1115
1116         state->opmode = opmode;
1117         if (state->opmode == OPMODE_AUTO) {
1118                 /* MSP revision G and up have both autodetect and autoselect */
1119                 if (msp_revision >= 'G')
1120                         state->opmode = OPMODE_AUTOSELECT;
1121                 /* MSP revision D and up have autodetect */
1122                 else if (msp_revision >= 'D')
1123                         state->opmode = OPMODE_AUTODETECT;
1124                 else
1125                         state->opmode = OPMODE_MANUAL;
1126         }
1127
1128         /* hello world :-) */
1129         v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
1130         v4l_info(client, "%s ", client->name);
1131         if (state->has_nicam && state->has_radio)
1132                 printk("supports nicam and radio, ");
1133         else if (state->has_nicam)
1134                 printk("supports nicam, ");
1135         else if (state->has_radio)
1136                 printk("supports radio, ");
1137         printk("mode is ");
1138
1139         /* version-specific initialization */
1140         switch (state->opmode) {
1141         case OPMODE_MANUAL:
1142                 printk("manual");
1143                 thread_func = msp3400c_thread;
1144                 break;
1145         case OPMODE_AUTODETECT:
1146                 printk("autodetect");
1147                 thread_func = msp3410d_thread;
1148                 break;
1149         case OPMODE_AUTOSELECT:
1150                 printk("autodetect and autoselect");
1151                 thread_func = msp34xxg_thread;
1152                 break;
1153         }
1154         printk("\n");
1155
1156         /* startup control thread if needed */
1157         if (thread_func) {
1158                 state->kthread = kthread_run(thread_func, client, "msp34xx");
1159
1160                 if (state->kthread == NULL)
1161                         v4l_warn(client, "kernel_thread() failed\n");
1162                 msp_wake_thread(client);
1163         }
1164
1165         /* done */
1166         i2c_attach_client(client);
1167
1168         return 0;
1169 }
1170
1171 static int msp_probe(struct i2c_adapter *adapter)
1172 {
1173         if (adapter->class & I2C_CLASS_TV_ANALOG)
1174                 return i2c_probe(adapter, &addr_data, msp_attach);
1175         return 0;
1176 }
1177
1178 static int msp_detach(struct i2c_client *client)
1179 {
1180         struct msp_state *state = i2c_get_clientdata(client);
1181         int err;
1182
1183         /* shutdown control thread */
1184         if (state->kthread) {
1185                 state->restart = 1;
1186                 kthread_stop(state->kthread);
1187         }
1188         msp_reset(client);
1189
1190         err = i2c_detach_client(client);
1191         if (err) {
1192                 return err;
1193         }
1194
1195         kfree(state);
1196         kfree(client);
1197         return 0;
1198 }
1199
1200 /* ----------------------------------------------------------------------- */
1201
1202 /* i2c implementation */
1203 static struct i2c_driver i2c_driver = {
1204         .id             = I2C_DRIVERID_MSP3400,
1205         .attach_adapter = msp_probe,
1206         .detach_client  = msp_detach,
1207         .command        = msp_command,
1208         .driver = {
1209                 .name    = "msp3400",
1210                 .suspend = msp_suspend,
1211                 .resume  = msp_resume,
1212         },
1213 };
1214
1215 static int __init msp3400_init_module(void)
1216 {
1217         return i2c_add_driver(&i2c_driver);
1218 }
1219
1220 static void __exit msp3400_cleanup_module(void)
1221 {
1222         i2c_del_driver(&i2c_driver);
1223 }
1224
1225 module_init(msp3400_init_module);
1226 module_exit(msp3400_cleanup_module);
1227
1228 /*
1229  * Overrides for Emacs so that we follow Linus's tabbing style.
1230  * ---------------------------------------------------------------------------
1231  * Local variables:
1232  * c-basic-offset: 8
1233  * End:
1234  */