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MOXA linux-2.6.x / linux-2.6.9-uc0 from sdlinux-moxaart.tgz
[linux-2.6.9-moxart.git] / drivers / media / video / msp3400.c
blobb606096164b9ecce36e061b33c45e1da44c6fd1a
1 /*
2 * programming the msp34* 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 *
28 * TODO:
29 * - better SAT support
30 *
31 *
32 * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch)
33 * using soundcore instead of OSS
34 *
35 */
36
37 #include <linux/config.h>
38 #include <linux/module.h>
39 #include <linux/kernel.h>
40 #include <linux/sched.h>
41 #include <linux/string.h>
42 #include <linux/timer.h>
43 #include <linux/delay.h>
44 #include <linux/errno.h>
45 #include <linux/slab.h>
46 #include <linux/i2c.h>
47 #include <linux/videodev.h>
48 #include <linux/init.h>
49 #include <linux/smp_lock.h>
50 #include <asm/semaphore.h>
51 #include <asm/pgtable.h>
52
53 #include <media/audiochip.h>
54 #include <media/id.h>
55 #include "msp3400.h"
56
57 /* insmod parameters */
58 static int debug = 0; /* debug output */
59 static int once = 0; /* no continous stereo monitoring */
60 static int amsound = 0; /* hard-wire AM sound at 6.5 Hz (france),
61 the autoscan seems work well only with FM... */
62 static int simple = -1; /* use short programming (>= msp3410 only) */
63 static int dolby = 0;
64
65 #define DFP_COUNT 0x41
66 static const int bl_dfp[] = {
67 0x00, 0x01, 0x02, 0x03, 0x06, 0x08, 0x09, 0x0a,
68 0x0b, 0x0d, 0x0e, 0x10
69 };
70
71 struct msp3400c {
72 int rev1,rev2;
73
74 int simple;
75 int mode;
76 int norm;
77 int stereo;
78 int nicam_on;
79 int acb;
80 int main, second; /* sound carrier */
81 int input;
82
83 int muted;
84 int volume, balance;
85 int bass, treble;
86
87 /* shadow register set */
88 int dfp_regs[DFP_COUNT];
89
90 /* thread */
91 pid_t tpid;
92 struct completion texit;
93 wait_queue_head_t wq;
94
95 int active:1;
96 int restart:1;
97 int rmmod:1;
98
99 int watch_stereo;
100 struct timer_list wake_stereo;
101 };
102
103 #define HAVE_NICAM(msp) (((msp->rev2>>8) & 0xff) != 00)
104 #define HAVE_SIMPLE(msp) ((msp->rev1 & 0xff) >= 'D'-'@')
105 #define HAVE_RADIO(msp) ((msp->rev1 & 0xff) >= 'G'-'@')
106
107 #define VIDEO_MODE_RADIO 16 /* norm magic for radio mode */
108
109 /* ---------------------------------------------------------------------- */
110
111 #define dprintk if (debug >= 1) printk
112 #define d2printk if (debug >= 2) printk
113
114 MODULE_PARM(once,"i");
115 MODULE_PARM(debug,"i");
116 MODULE_PARM(simple,"i");
117 MODULE_PARM(amsound,"i");
118 MODULE_PARM(dolby,"i");
119
120 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
121 MODULE_AUTHOR("Gerd Knorr");
122 MODULE_LICENSE("Dual BSD/GPL"); /* FreeBSD uses this too */
123
124 /* ---------------------------------------------------------------------- */
125
126 #define I2C_MSP3400C 0x80
127 #define I2C_MSP3400C_ALT 0x88
128
129 #define I2C_MSP3400C_DEM 0x10
130 #define I2C_MSP3400C_DFP 0x12
131
132 /* Addresses to scan */
133 static unsigned short normal_i2c[] = {
134 I2C_MSP3400C >> 1,
135 I2C_MSP3400C_ALT >> 1,
136 I2C_CLIENT_END
137 };
138 static unsigned short normal_i2c_range[] = {I2C_CLIENT_END,I2C_CLIENT_END};
139 I2C_CLIENT_INSMOD;
140
141 /* ----------------------------------------------------------------------- */
142 /* functions for talking to the MSP3400C Sound processor */
143
144 #ifndef I2C_M_IGNORE_NAK
145 # define I2C_M_IGNORE_NAK 0x1000
146 #endif
147
148 static int msp3400c_reset(struct i2c_client *client)
149 {
150 /* reset and read revision code */
151 static char reset_off[3] = { 0x00, 0x80, 0x00 };
152 static char reset_on[3] = { 0x00, 0x00, 0x00 };
153 static char write[3] = { I2C_MSP3400C_DFP + 1, 0x00, 0x1e };
154 char read[2];
155 struct i2c_msg reset[2] = {
156 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
157 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
158 };
159 struct i2c_msg test[2] = {
160 { client->addr, 0, 3, write },
161 { client->addr, I2C_M_RD, 2, read },
162 };
163
164 if ( (1 != i2c_transfer(client->adapter,&reset[0],1)) ||
165 (1 != i2c_transfer(client->adapter,&reset[1],1)) ||
166 (2 != i2c_transfer(client->adapter,test,2)) ) {
167 printk(KERN_ERR "msp3400: chip reset failed\n");
168 return -1;
169 }
170 return 0;
171 }
172
173 static int
174 msp3400c_read(struct i2c_client *client, int dev, int addr)
175 {
176 int err;
177
178 unsigned char write[3];
179 unsigned char read[2];
180 struct i2c_msg msgs[2] = {
181 { client->addr, 0, 3, write },
182 { client->addr, I2C_M_RD, 2, read }
183 };
184 write[0] = dev+1;
185 write[1] = addr >> 8;
186 write[2] = addr & 0xff;
187
188 for (err = 0; err < 3;) {
189 if (2 == i2c_transfer(client->adapter,msgs,2))
190 break;
191 err++;
192 printk(KERN_WARNING "msp34xx: I/O error #%d (read 0x%02x/0x%02x)\n",
193 err, dev, addr);
194 set_current_state(TASK_INTERRUPTIBLE);
195 schedule_timeout(HZ/10);
196 }
197 if (3 == err) {
198 printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
199 msp3400c_reset(client);
200 return -1;
201 }
202 return read[0] << 8 | read[1];
203 }
204
205 static int
206 msp3400c_write(struct i2c_client *client, int dev, int addr, int val)
207 {
208 int err;
209 unsigned char buffer[5];
210
211 buffer[0] = dev;
212 buffer[1] = addr >> 8;
213 buffer[2] = addr & 0xff;
214 buffer[3] = val >> 8;
215 buffer[4] = val & 0xff;
216
217 for (err = 0; err < 3;) {
218 if (5 == i2c_master_send(client, buffer, 5))
219 break;
220 err++;
221 printk(KERN_WARNING "msp34xx: I/O error #%d (write 0x%02x/0x%02x)\n",
222 err, dev, addr);
223 set_current_state(TASK_INTERRUPTIBLE);
224 schedule_timeout(HZ/10);
225 }
226 if (3 == err) {
227 printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
228 msp3400c_reset(client);
229 return -1;
230 }
231 return 0;
232 }
233
234 /* ------------------------------------------------------------------------ */
235
236 /* This macro is allowed for *constants* only, gcc must calculate it
237 at compile time. Remember -- no floats in kernel mode */
238 #define MSP_CARRIER(freq) ((int)((float)(freq/18.432)*(1<<24)))
239
240 #define MSP_MODE_AM_DETECT 0
241 #define MSP_MODE_FM_RADIO 2
242 #define MSP_MODE_FM_TERRA 3
243 #define MSP_MODE_FM_SAT 4
244 #define MSP_MODE_FM_NICAM1 5
245 #define MSP_MODE_FM_NICAM2 6
246 #define MSP_MODE_AM_NICAM 7
247 #define MSP_MODE_BTSC 8
248 #define MSP_MODE_EXTERN 9
249
250 static struct MSP_INIT_DATA_DEM {
251 int fir1[6];
252 int fir2[6];
253 int cdo1;
254 int cdo2;
255 int ad_cv;
256 int mode_reg;
257 int dfp_src;
258 int dfp_matrix;
259 } msp_init_data[] = {
260 /* AM (for carrier detect / msp3400) */
261 { { 75, 19, 36, 35, 39, 40 }, { 75, 19, 36, 35, 39, 40 },
262 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
263 0x00d0, 0x0500, 0x0020, 0x3000},
264
265 /* AM (for carrier detect / msp3410) */
266 { { -1, -1, -8, 2, 59, 126 }, { -1, -1, -8, 2, 59, 126 },
267 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
268 0x00d0, 0x0100, 0x0020, 0x3000},
269
270 /* FM Radio */
271 { { -8, -8, 4, 6, 78, 107 }, { -8, -8, 4, 6, 78, 107 },
272 MSP_CARRIER(10.7), MSP_CARRIER(10.7),
273 0x00d0, 0x0480, 0x0020, 0x3000 },
274
275 /* Terrestial FM-mono + FM-stereo */
276 { { 3, 18, 27, 48, 66, 72 }, { 3, 18, 27, 48, 66, 72 },
277 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
278 0x00d0, 0x0480, 0x0030, 0x3000},
279
280 /* Sat FM-mono */
281 { { 1, 9, 14, 24, 33, 37 }, { 3, 18, 27, 48, 66, 72 },
282 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
283 0x00c6, 0x0480, 0x0000, 0x3000},
284
285 /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
286 { { -2, -8, -10, 10, 50, 86 }, { 3, 18, 27, 48, 66, 72 },
287 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
288 0x00d0, 0x0040, 0x0120, 0x3000},
289
290 /* NICAM/FM -- I (6.0/6.552) */
291 { { 2, 4, -6, -4, 40, 94 }, { 3, 18, 27, 48, 66, 72 },
292 MSP_CARRIER(6.0), MSP_CARRIER(6.0),
293 0x00d0, 0x0040, 0x0120, 0x3000},
294
295 /* NICAM/AM -- L (6.5/5.85) */
296 { { -2, -8, -10, 10, 50, 86 }, { -4, -12, -9, 23, 79, 126 },
297 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
298 0x00c6, 0x0140, 0x0120, 0x7c03},
299 };
300
301 struct CARRIER_DETECT {
302 int cdo;
303 char *name;
304 };
305
306 static struct CARRIER_DETECT carrier_detect_main[] = {
307 /* main carrier */
308 { MSP_CARRIER(4.5), "4.5 NTSC" },
309 { MSP_CARRIER(5.5), "5.5 PAL B/G" },
310 { MSP_CARRIER(6.0), "6.0 PAL I" },
311 { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
312 };
313
314 static struct CARRIER_DETECT carrier_detect_55[] = {
315 /* PAL B/G */
316 { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
317 { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
318 };
319
320 static struct CARRIER_DETECT carrier_detect_65[] = {
321 /* PAL SAT / SECAM */
322 { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
323 { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
324 { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
325 { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
326 { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
327 { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
328 };
329
330 #define CARRIER_COUNT(x) (sizeof(x)/sizeof(struct CARRIER_DETECT))
331
332 /* ----------------------------------------------------------------------- */
333
334 #define SCART_MASK 0
335 #define SCART_IN1 1
336 #define SCART_IN2 2
337 #define SCART_IN1_DA 3
338 #define SCART_IN2_DA 4
339 #define SCART_IN3 5
340 #define SCART_IN4 6
341 #define SCART_MONO 7
342 #define SCART_MUTE 8
343
344 static int scarts[3][9] = {
345 /* MASK IN1 IN2 IN1_DA IN2_DA IN3 IN4 MONO MUTE */
346 { 0x0320, 0x0000, 0x0200, -1, -1, 0x0300, 0x0020, 0x0100, 0x0320 },
347 { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
348 { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
349 };
350
351 static char *scart_names[] = {
352 "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
353 };
354
355 static void
356 msp3400c_set_scart(struct i2c_client *client, int in, int out)
357 {
358 struct msp3400c *msp = i2c_get_clientdata(client);
359
360 if (-1 == scarts[out][in])
361 return;
362
363 dprintk(KERN_DEBUG
364 "msp34xx: scart switch: %s => %d\n",scart_names[in],out);
365 msp->acb &= ~scarts[out][SCART_MASK];
366 msp->acb |= scarts[out][in];
367 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0013, msp->acb);
368 }
369
370 /* ------------------------------------------------------------------------ */
371
372 static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2)
373 {
374 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0093, cdo1 & 0xfff);
375 msp3400c_write(client,I2C_MSP3400C_DEM, 0x009b, cdo1 >> 12);
376 msp3400c_write(client,I2C_MSP3400C_DEM, 0x00a3, cdo2 & 0xfff);
377 msp3400c_write(client,I2C_MSP3400C_DEM, 0x00ab, cdo2 >> 12);
378 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
379 }
380
381 static void msp3400c_setvolume(struct i2c_client *client,
382 int muted, int volume, int balance)
383 {
384 int val = 0, bal = 0;
385
386 if (!muted) {
387 val = (volume * 0x73 / 65535) << 8;
388 }
389 if (val) {
390 bal = (balance / 256) - 128;
391 }
392 dprintk(KERN_DEBUG
393 "msp34xx: setvolume: mute=%s %d:%d v=0x%02x b=0x%02x\n",
394 muted ? "on" : "off", volume, balance, val>>8, bal);
395 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */
396 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones */
397 /* scart - on/off only */
398 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007, val ? 0x4000 : 0);
399 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, bal << 8);
400 }
401
402 static void msp3400c_setbass(struct i2c_client *client, int bass)
403 {
404 int val = ((bass-32768) * 0x60 / 65535) << 8;
405
406 dprintk(KERN_DEBUG "msp34xx: setbass: %d 0x%02x\n",bass, val>>8);
407 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0002, val); /* loudspeaker */
408 }
409
410 static void msp3400c_settreble(struct i2c_client *client, int treble)
411 {
412 int val = ((treble-32768) * 0x60 / 65535) << 8;
413
414 dprintk(KERN_DEBUG "msp34xx: settreble: %d 0x%02x\n",treble, val>>8);
415 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0003, val); /* loudspeaker */
416 }
417
418 static void msp3400c_setmode(struct i2c_client *client, int type)
419 {
420 struct msp3400c *msp = i2c_get_clientdata(client);
421 int i;
422
423 dprintk(KERN_DEBUG "msp3400: setmode: %d\n",type);
424 msp->mode = type;
425 msp->stereo = VIDEO_SOUND_MONO;
426
427 msp3400c_write(client,I2C_MSP3400C_DEM, 0x00bb, /* ad_cv */
428 msp_init_data[type].ad_cv);
429
430 for (i = 5; i >= 0; i--) /* fir 1 */
431 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0001,
432 msp_init_data[type].fir1[i]);
433
434 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0004); /* fir 2 */
435 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0040);
436 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0000);
437 for (i = 5; i >= 0; i--)
438 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005,
439 msp_init_data[type].fir2[i]);
440
441 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0083, /* MODE_REG */
442 msp_init_data[type].mode_reg);
443
444 msp3400c_setcarrier(client, msp_init_data[type].cdo1,
445 msp_init_data[type].cdo2);
446
447 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
448
449 if (dolby) {
450 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
451 0x0520); /* I2S1 */
452 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
453 0x0620); /* I2S2 */
454 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
455 msp_init_data[type].dfp_src);
456 } else {
457 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
458 msp_init_data[type].dfp_src);
459 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
460 msp_init_data[type].dfp_src);
461 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
462 msp_init_data[type].dfp_src);
463 }
464 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,
465 msp_init_data[type].dfp_src);
466 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e,
467 msp_init_data[type].dfp_matrix);
468
469 if (HAVE_NICAM(msp)) {
470 /* nicam prescale */
471 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */
472 }
473 }
474
475 /* turn on/off nicam + stereo */
476 static void msp3400c_setstereo(struct i2c_client *client, int mode)
477 {
478 static char *strmode[16] = {
479 #if __GNUC__ >= 3
480 [ 0 ... 15 ] = "invalid",
481 #endif
482 [ VIDEO_SOUND_MONO ] = "mono",
483 [ VIDEO_SOUND_STEREO ] = "stereo",
484 [ VIDEO_SOUND_LANG1 ] = "lang1",
485 [ VIDEO_SOUND_LANG2 ] = "lang2",
486 };
487 struct msp3400c *msp = i2c_get_clientdata(client);
488 int nicam=0; /* channel source: FM/AM or nicam */
489 int src=0;
490
491 /* switch demodulator */
492 switch (msp->mode) {
493 case MSP_MODE_FM_TERRA:
494 dprintk(KERN_DEBUG "msp3400: FM setstereo: %s\n",strmode[mode]);
495 msp3400c_setcarrier(client,msp->second,msp->main);
496 switch (mode) {
497 case VIDEO_SOUND_STEREO:
498 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001);
499 break;
500 case VIDEO_SOUND_MONO:
501 case VIDEO_SOUND_LANG1:
502 case VIDEO_SOUND_LANG2:
503 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000);
504 break;
505 }
506 break;
507 case MSP_MODE_FM_SAT:
508 dprintk(KERN_DEBUG "msp3400: SAT setstereo: %s\n",strmode[mode]);
509 switch (mode) {
510 case VIDEO_SOUND_MONO:
511 msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
512 break;
513 case VIDEO_SOUND_STEREO:
514 msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
515 break;
516 case VIDEO_SOUND_LANG1:
517 msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
518 break;
519 case VIDEO_SOUND_LANG2:
520 msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
521 break;
522 }
523 break;
524 case MSP_MODE_FM_NICAM1:
525 case MSP_MODE_FM_NICAM2:
526 case MSP_MODE_AM_NICAM:
527 dprintk(KERN_DEBUG "msp3400: NICAM setstereo: %s\n",strmode[mode]);
528 msp3400c_setcarrier(client,msp->second,msp->main);
529 if (msp->nicam_on)
530 nicam=0x0100;
531 break;
532 case MSP_MODE_BTSC:
533 dprintk(KERN_DEBUG "msp3400: BTSC setstereo: %s\n",strmode[mode]);
534 nicam=0x0300;
535 break;
536 case MSP_MODE_EXTERN:
537 dprintk(KERN_DEBUG "msp3400: extern setstereo: %s\n",strmode[mode]);
538 nicam = 0x0200;
539 break;
540 case MSP_MODE_FM_RADIO:
541 dprintk(KERN_DEBUG "msp3400: FM-Radio setstereo: %s\n",strmode[mode]);
542 break;
543 default:
544 dprintk(KERN_DEBUG "msp3400: mono setstereo\n");
545 return;
546 }
547
548 /* switch audio */
549 switch (mode) {
550 case VIDEO_SOUND_STEREO:
551 src = 0x0020 | nicam;
552 #if 0
553 /* spatial effect */
554 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000);
555 #endif
556 break;
557 case VIDEO_SOUND_MONO:
558 if (msp->mode == MSP_MODE_AM_NICAM) {
559 dprintk("msp3400: switching to AM mono\n");
560 /* AM mono decoding is handled by tuner, not MSP chip */
561 /* SCART switching control register */
562 msp3400c_set_scart(client,SCART_MONO,0);
563 src = 0x0200;
564 break;
565 }
566 case VIDEO_SOUND_LANG1:
567 src = 0x0000 | nicam;
568 break;
569 case VIDEO_SOUND_LANG2:
570 src = 0x0010 | nicam;
571 break;
572 }
573 dprintk(KERN_DEBUG
574 "msp3400: setstereo final source/matrix = 0x%x\n", src);
575
576 if (dolby) {
577 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,0x0520);
578 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,0x0620);
579 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
580 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
581 } else {
582 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,src);
583 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,src);
584 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
585 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
586 }
587 }
588
589 static void
590 msp3400c_print_mode(struct msp3400c *msp)
591 {
592 if (msp->main == msp->second) {
593 printk(KERN_DEBUG "msp3400: mono sound carrier: %d.%03d MHz\n",
594 msp->main/910000,(msp->main/910)%1000);
595 } else {
596 printk(KERN_DEBUG "msp3400: main sound carrier: %d.%03d MHz\n",
597 msp->main/910000,(msp->main/910)%1000);
598 }
599 if (msp->mode == MSP_MODE_FM_NICAM1 ||
600 msp->mode == MSP_MODE_FM_NICAM2)
601 printk(KERN_DEBUG "msp3400: NICAM/FM carrier : %d.%03d MHz\n",
602 msp->second/910000,(msp->second/910)%1000);
603 if (msp->mode == MSP_MODE_AM_NICAM)
604 printk(KERN_DEBUG "msp3400: NICAM/AM carrier : %d.%03d MHz\n",
605 msp->second/910000,(msp->second/910)%1000);
606 if (msp->mode == MSP_MODE_FM_TERRA &&
607 msp->main != msp->second) {
608 printk(KERN_DEBUG "msp3400: FM-stereo carrier : %d.%03d MHz\n",
609 msp->second/910000,(msp->second/910)%1000);
610 }
611 }
612
613 static void
614 msp3400c_restore_dfp(struct i2c_client *client)
615 {
616 struct msp3400c *msp = i2c_get_clientdata(client);
617 int i;
618
619 for (i = 0; i < DFP_COUNT; i++) {
620 if (-1 == msp->dfp_regs[i])
621 continue;
622 msp3400c_write(client,I2C_MSP3400C_DFP, i, msp->dfp_regs[i]);
623 }
624 }
625
626 /* ----------------------------------------------------------------------- */
627
628 struct REGISTER_DUMP {
629 int addr;
630 char *name;
631 };
632
633 struct REGISTER_DUMP d1[] = {
634 { 0x007e, "autodetect" },
635 { 0x0023, "C_AD_BITS " },
636 { 0x0038, "ADD_BITS " },
637 { 0x003e, "CIB_BITS " },
638 { 0x0057, "ERROR_RATE" },
639 };
640
641 static int
642 autodetect_stereo(struct i2c_client *client)
643 {
644 struct msp3400c *msp = i2c_get_clientdata(client);
645 int val;
646 int newstereo = msp->stereo;
647 int newnicam = msp->nicam_on;
648 int update = 0;
649
650 switch (msp->mode) {
651 case MSP_MODE_FM_TERRA:
652 val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x18);
653 if (val > 32767)
654 val -= 65536;
655 dprintk(KERN_DEBUG
656 "msp34xx: stereo detect register: %d\n",val);
657 if (val > 4096) {
658 newstereo = VIDEO_SOUND_STEREO | VIDEO_SOUND_MONO;
659 } else if (val < -4096) {
660 newstereo = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
661 } else {
662 newstereo = VIDEO_SOUND_MONO;
663 }
664 newnicam = 0;
665 break;
666 case MSP_MODE_FM_NICAM1:
667 case MSP_MODE_FM_NICAM2:
668 case MSP_MODE_AM_NICAM:
669 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x23);
670 dprintk(KERN_DEBUG
671 "msp34xx: nicam sync=%d, mode=%d\n",
672 val & 1, (val & 0x1e) >> 1);
673
674 if (val & 1) {
675 /* nicam synced */
676 switch ((val & 0x1e) >> 1) {
677 case 0:
678 case 8:
679 newstereo = VIDEO_SOUND_STEREO;
680 break;
681 case 1:
682 case 9:
683 newstereo = VIDEO_SOUND_MONO
684 | VIDEO_SOUND_LANG1;
685 break;
686 case 2:
687 case 10:
688 newstereo = VIDEO_SOUND_MONO
689 | VIDEO_SOUND_LANG1
690 | VIDEO_SOUND_LANG2;
691 break;
692 default:
693 newstereo = VIDEO_SOUND_MONO;
694 break;
695 }
696 newnicam=1;
697 } else {
698 newnicam = 0;
699 newstereo = VIDEO_SOUND_MONO;
700 }
701 break;
702 case MSP_MODE_BTSC:
703 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200);
704 dprintk(KERN_DEBUG
705 "msp3410: status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
706 val,
707 (val & 0x0002) ? "no" : "yes",
708 (val & 0x0004) ? "no" : "yes",
709 (val & 0x0040) ? "stereo" : "mono",
710 (val & 0x0080) ? ", nicam 2nd mono" : "",
711 (val & 0x0100) ? ", bilingual/SAP" : "");
712 newstereo = VIDEO_SOUND_MONO;
713 if (val & 0x0040) newstereo |= VIDEO_SOUND_STEREO;
714 if (val & 0x0100) newstereo |= VIDEO_SOUND_LANG1;
715 break;
716 }
717 if (newstereo != msp->stereo) {
718 update = 1;
719 dprintk(KERN_DEBUG "msp34xx: watch: stereo %d => %d\n",
720 msp->stereo,newstereo);
721 msp->stereo = newstereo;
722 }
723 if (newnicam != msp->nicam_on) {
724 update = 1;
725 dprintk(KERN_DEBUG "msp34xx: watch: nicam %d => %d\n",
726 msp->nicam_on,newnicam);
727 msp->nicam_on = newnicam;
728 }
729 return update;
730 }
731
732 /*
733 * A kernel thread for msp3400 control -- we don't want to block the
734 * in the ioctl while doing the sound carrier & stereo detect
735 */
736
737 static int msp34xx_sleep(struct msp3400c *msp, int timeout)
738 {
739 DECLARE_WAITQUEUE(wait, current);
740
741 add_wait_queue(&msp->wq, &wait);
742 if (!msp->rmmod) {
743 set_current_state(TASK_INTERRUPTIBLE);
744 if (timeout < 0)
745 schedule();
746 else
747 schedule_timeout(timeout);
748 }
749 remove_wait_queue(&msp->wq, &wait);
750 return msp->rmmod || signal_pending(current);
751 }
752
753 static void msp3400c_stereo_wake(unsigned long data)
754 {
755 struct msp3400c *msp = (struct msp3400c*)data; /* XXX alpha ??? */
756
757 wake_up_interruptible(&msp->wq);
758 }
759
760 /* stereo/multilang monitoring */
761 static void watch_stereo(struct i2c_client *client)
762 {
763 struct msp3400c *msp = i2c_get_clientdata(client);
764
765 if (autodetect_stereo(client)) {
766 if (msp->stereo & VIDEO_SOUND_STEREO)
767 msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
768 else if (msp->stereo & VIDEO_SOUND_LANG1)
769 msp3400c_setstereo(client,VIDEO_SOUND_LANG1);
770 else if (msp->stereo & VIDEO_SOUND_LANG2)
771 msp3400c_setstereo(client,VIDEO_SOUND_LANG2);
772 else
773 msp3400c_setstereo(client,VIDEO_SOUND_MONO);
774 }
775 if (once)
776 msp->watch_stereo = 0;
777 if (msp->watch_stereo)
778 mod_timer(&msp->wake_stereo, jiffies+5*HZ);
779 }
780
781 static int msp3400c_thread(void *data)
782 {
783 struct i2c_client *client = data;
784 struct msp3400c *msp = i2c_get_clientdata(client);
785
786 struct CARRIER_DETECT *cd;
787 int count, max1,max2,val1,val2, val,this;
788
789 daemonize("msp3400");
790 allow_signal(SIGTERM);
791 printk("msp3400: daemon started\n");
792
793 for (;;) {
794 d2printk("msp3400: thread: sleep\n");
795 if (msp34xx_sleep(msp,-1))
796 goto done;
797
798 d2printk("msp3400: thread: wakeup\n");
799 msp->active = 1;
800
801 if (msp->watch_stereo) {
802 watch_stereo(client);
803 msp->active = 0;
804 continue;
805 }
806
807 /* some time for the tuner to sync */
808 if (msp34xx_sleep(msp,HZ/5))
809 goto done;
810
811 restart:
812 if (VIDEO_MODE_RADIO == msp->norm ||
813 MSP_MODE_EXTERN == msp->mode) {
814 /* no carrier scan, just unmute */
815 printk("msp3400: thread: no carrier scan\n");
816 msp3400c_setvolume(client, msp->muted,
817 msp->volume, msp->balance);
818 continue;
819 }
820 msp->restart = 0;
821 msp3400c_setvolume(client, msp->muted, 0, 0);
822 msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
823 val1 = val2 = 0;
824 max1 = max2 = -1;
825 del_timer(&msp->wake_stereo);
826 msp->watch_stereo = 0;
827
828 /* carrier detect pass #1 -- main carrier */
829 cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main);
830
831 if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
832 /* autodetect doesn't work well with AM ... */
833 max1 = 3;
834 count = 0;
835 dprintk("msp3400: AM sound override\n");
836 }
837
838 for (this = 0; this < count; this++) {
839 msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
840
841 if (msp34xx_sleep(msp,HZ/10))
842 goto done;
843 if (msp->restart)
844 msp->restart = 0;
845
846 val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
847 if (val > 32767)
848 val -= 65536;
849 if (val1 < val)
850 val1 = val, max1 = this;
851 dprintk("msp3400: carrier1 val: %5d / %s\n", val,cd[this].name);
852 }
853
854 /* carrier detect pass #2 -- second (stereo) carrier */
855 switch (max1) {
856 case 1: /* 5.5 */
857 cd = carrier_detect_55; count = CARRIER_COUNT(carrier_detect_55);
858 break;
859 case 3: /* 6.5 */
860 cd = carrier_detect_65; count = CARRIER_COUNT(carrier_detect_65);
861 break;
862 case 0: /* 4.5 */
863 case 2: /* 6.0 */
864 default:
865 cd = NULL; count = 0;
866 break;
867 }
868
869 if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
870 /* autodetect doesn't work well with AM ... */
871 cd = NULL; count = 0; max2 = 0;
872 }
873 for (this = 0; this < count; this++) {
874 msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
875
876 if (msp34xx_sleep(msp,HZ/10))
877 goto done;
878 if (msp->restart)
879 goto restart;
880
881 val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
882 if (val > 32767)
883 val -= 65536;
884 if (val2 < val)
885 val2 = val, max2 = this;
886 dprintk("msp3400: carrier2 val: %5d / %s\n", val,cd[this].name);
887 }
888
889 /* programm the msp3400 according to the results */
890 msp->main = carrier_detect_main[max1].cdo;
891 switch (max1) {
892 case 1: /* 5.5 */
893 if (max2 == 0) {
894 /* B/G FM-stereo */
895 msp->second = carrier_detect_55[max2].cdo;
896 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
897 msp->nicam_on = 0;
898 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
899 msp->watch_stereo = 1;
900 } else if (max2 == 1 && HAVE_NICAM(msp)) {
901 /* B/G NICAM */
902 msp->second = carrier_detect_55[max2].cdo;
903 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
904 msp->nicam_on = 1;
905 msp3400c_setcarrier(client, msp->second, msp->main);
906 msp->watch_stereo = 1;
907 } else {
908 goto no_second;
909 }
910 break;
911 case 2: /* 6.0 */
912 /* PAL I NICAM */
913 msp->second = MSP_CARRIER(6.552);
914 msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
915 msp->nicam_on = 1;
916 msp3400c_setcarrier(client, msp->second, msp->main);
917 msp->watch_stereo = 1;
918 break;
919 case 3: /* 6.5 */
920 if (max2 == 1 || max2 == 2) {
921 /* D/K FM-stereo */
922 msp->second = carrier_detect_65[max2].cdo;
923 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
924 msp->nicam_on = 0;
925 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
926 msp->watch_stereo = 1;
927 } else if (max2 == 0 &&
928 msp->norm == VIDEO_MODE_SECAM) {
929 /* L NICAM or AM-mono */
930 msp->second = carrier_detect_65[max2].cdo;
931 msp3400c_setmode(client, MSP_MODE_AM_NICAM);
932 msp->nicam_on = 0;
933 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
934 msp3400c_setcarrier(client, msp->second, msp->main);
935 /* volume prescale for SCART (AM mono input) */
936 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000d, 0x1900);
937 msp->watch_stereo = 1;
938 } else if (max2 == 0 && HAVE_NICAM(msp)) {
939 /* D/K NICAM */
940 msp->second = carrier_detect_65[max2].cdo;
941 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
942 msp->nicam_on = 1;
943 msp3400c_setcarrier(client, msp->second, msp->main);
944 msp->watch_stereo = 1;
945 } else {
946 goto no_second;
947 }
948 break;
949 case 0: /* 4.5 */
950 default:
951 no_second:
952 msp->second = carrier_detect_main[max1].cdo;
953 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
954 msp->nicam_on = 0;
955 msp3400c_setcarrier(client, msp->second, msp->main);
956 msp->stereo = VIDEO_SOUND_MONO;
957 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
958 break;
959 }
960
961 /* unmute + restore dfp registers */
962 msp3400c_setvolume(client, msp->muted,
963 msp->volume, msp->balance);
964 msp3400c_restore_dfp(client);
965
966 if (msp->watch_stereo)
967 mod_timer(&msp->wake_stereo, jiffies+5*HZ);
968
969 if (debug)
970 msp3400c_print_mode(msp);
971
972 msp->active = 0;
973 }
974
975 done:
976 msp->active = 0;
977 dprintk(KERN_DEBUG "msp3400: thread: exit\n");
978 complete_and_exit(&msp->texit, 0);
979 }
980
981 /* ----------------------------------------------------------------------- */
982 /* this one uses the automatic sound standard detection of newer */
983 /* msp34xx chip versions */
984
985 static struct MODES {
986 int retval;
987 int main, second;
988 char *name;
989 } modelist[] = {
990 { 0x0000, 0, 0, "ERROR" },
991 { 0x0001, 0, 0, "autodetect start" },
992 { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" },
993 { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" },
994 { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" },
995 { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" },
996 { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" },
997 { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
998 { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
999 { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
1000 { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
1001 { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
1002 { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
1003 { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
1004 { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
1005 { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
1006 { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
1007 { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
1008 { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
1009 { -1, 0, 0, NULL }, /* EOF */
1010 };
1011
1012 static int msp3410d_thread(void *data)
1013 {
1014 struct i2c_client *client = data;
1015 struct msp3400c *msp = i2c_get_clientdata(client);
1016 int mode,val,i,std;
1017
1018 daemonize("msp3410 [auto]");
1019 allow_signal(SIGTERM);
1020 printk("msp3410: daemon started\n");
1021
1022 for (;;) {
1023 d2printk(KERN_DEBUG "msp3410: thread: sleep\n");
1024 if (msp34xx_sleep(msp,-1))
1025 goto done;
1026
1027 d2printk(KERN_DEBUG "msp3410: thread: wakeup\n");
1028 msp->active = 1;
1029
1030 if (msp->watch_stereo) {
1031 watch_stereo(client);
1032 msp->active = 0;
1033 continue;
1034 }
1035
1036 /* some time for the tuner to sync */
1037 if (msp34xx_sleep(msp,HZ/5))
1038 goto done;
1039
1040 restart:
1041 if (msp->mode == MSP_MODE_EXTERN) {
1042 /* no carrier scan needed, just unmute */
1043 dprintk(KERN_DEBUG "msp3410: thread: no carrier scan\n");
1044 msp3400c_setvolume(client, msp->muted,
1045 msp->volume, msp->balance);
1046 continue;
1047 }
1048 msp->restart = 0;
1049 del_timer(&msp->wake_stereo);
1050 msp->watch_stereo = 0;
1051
1052 /* put into sane state (and mute) */
1053 msp3400c_reset(client);
1054
1055 /* start autodetect */
1056 switch (msp->norm) {
1057 case VIDEO_MODE_PAL:
1058 mode = 0x1003;
1059 std = 1;
1060 break;
1061 case VIDEO_MODE_NTSC: /* BTSC */
1062 mode = 0x2003;
1063 std = 0x0020;
1064 break;
1065 case VIDEO_MODE_SECAM:
1066 mode = 0x0003;
1067 std = 1;
1068 break;
1069 case VIDEO_MODE_RADIO:
1070 mode = 0x0003;
1071 std = 0x0040;
1072 break;
1073 default:
1074 mode = 0x0003;
1075 std = 1;
1076 break;
1077 }
1078 msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode);
1079 msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std);
1080
1081 if (debug) {
1082 int i;
1083 for (i = 0; modelist[i].name != NULL; i++)
1084 if (modelist[i].retval == std)
1085 break;
1086 printk(KERN_DEBUG "msp3410: setting mode: %s (0x%04x)\n",
1087 modelist[i].name ? modelist[i].name : "unknown",std);
1088 }
1089
1090 if (std != 1) {
1091 /* programmed some specific mode */
1092 val = std;
1093 } else {
1094 /* triggered autodetect */
1095 for (;;) {
1096 if (msp34xx_sleep(msp,HZ/10))
1097 goto done;
1098 if (msp->restart)
1099 goto restart;
1100
1101 /* check results */
1102 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
1103 if (val < 0x07ff)
1104 break;
1105 dprintk(KERN_DEBUG "msp3410: detection still in progress\n");
1106 }
1107 }
1108 for (i = 0; modelist[i].name != NULL; i++)
1109 if (modelist[i].retval == val)
1110 break;
1111 dprintk(KERN_DEBUG "msp3410: current mode: %s (0x%04x)\n",
1112 modelist[i].name ? modelist[i].name : "unknown",
1113 val);
1114 msp->main = modelist[i].main;
1115 msp->second = modelist[i].second;
1116
1117 if (amsound && (msp->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
1118 /* autodetection has failed, let backup */
1119 dprintk(KERN_DEBUG "msp3410: autodetection failed,"
1120 " switching to backup mode: %s (0x%04x)\n",
1121 modelist[8].name ? modelist[8].name : "unknown",val);
1122 val = 0x0009;
1123 msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, val);
1124 }
1125
1126 /* set various prescales */
1127 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0d, 0x1900); /* scart */
1128 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */
1129 msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00); /* nicam */
1130
1131 /* set stereo */
1132 switch (val) {
1133 case 0x0008: /* B/G NICAM */
1134 case 0x000a: /* I NICAM */
1135 if (val == 0x0008)
1136 msp->mode = MSP_MODE_FM_NICAM1;
1137 else
1138 msp->mode = MSP_MODE_FM_NICAM2;
1139 /* just turn on stereo */
1140 msp->stereo = VIDEO_SOUND_STEREO;
1141 msp->nicam_on = 1;
1142 msp->watch_stereo = 1;
1143 msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
1144 break;
1145 case 0x0009:
1146 msp->mode = MSP_MODE_AM_NICAM;
1147 msp->stereo = VIDEO_SOUND_MONO;
1148 msp->nicam_on = 1;
1149 msp3400c_setstereo(client,VIDEO_SOUND_MONO);
1150 msp->watch_stereo = 1;
1151 break;
1152 case 0x0020: /* BTSC */
1153 /* just turn on stereo */
1154 msp->mode = MSP_MODE_BTSC;
1155 msp->stereo = VIDEO_SOUND_STEREO;
1156 msp->nicam_on = 0;
1157 msp->watch_stereo = 1;
1158 msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
1159 break;
1160 case 0x0040: /* FM radio */
1161 msp->mode = MSP_MODE_FM_RADIO;
1162 msp->stereo = VIDEO_SOUND_STEREO;
1163 msp->nicam_on = 0;
1164 msp->watch_stereo = 0;
1165 /* not needed in theory if HAVE_RADIO(), but
1166 short programming enables carrier mute */
1167 msp3400c_setmode(client,MSP_MODE_FM_RADIO);
1168 msp3400c_setcarrier(client, MSP_CARRIER(10.7),
1169 MSP_CARRIER(10.7));
1170 /* scart routing */
1171 msp3400c_set_scart(client,SCART_IN2,0);
1172 #if 0
1173 /* radio from SCART_IN2 */
1174 msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0220);
1175 msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0220);
1176 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0220);
1177 #else
1178 /* msp34xx does radio decoding */
1179 msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0020);
1180 msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0020);
1181 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0020);
1182 #endif
1183 break;
1184 case 0x0003:
1185 case 0x0004:
1186 case 0x0005:
1187 msp->mode = MSP_MODE_FM_TERRA;
1188 msp->stereo = VIDEO_SOUND_MONO;
1189 msp->nicam_on = 0;
1190 msp->watch_stereo = 1;
1191 break;
1192 }
1193
1194 /* unmute + restore dfp registers */
1195 msp3400c_setbass(client, msp->bass);
1196 msp3400c_settreble(client, msp->treble);
1197 msp3400c_setvolume(client, msp->muted,
1198 msp->volume, msp->balance);
1199 msp3400c_restore_dfp(client);
1200
1201 if (msp->watch_stereo)
1202 mod_timer(&msp->wake_stereo, jiffies+HZ);
1203
1204 msp->active = 0;
1205 }
1206
1207 done:
1208 msp->active = 0;
1209 dprintk(KERN_DEBUG "msp3410: thread: exit\n");
1210 complete_and_exit(&msp->texit, 0);
1211 return 0;
1212 }
1213
1214 /* ----------------------------------------------------------------------- */
1215
1216 static int msp_attach(struct i2c_adapter *adap, int addr, int kind);
1217 static int msp_detach(struct i2c_client *client);
1218 static int msp_probe(struct i2c_adapter *adap);
1219 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg);
1220
1221 static struct i2c_driver driver = {
1222 .owner = THIS_MODULE,
1223 .name = "i2c msp3400 driver",
1224 .id = I2C_DRIVERID_MSP3400,
1225 .flags = I2C_DF_NOTIFY,
1226 .attach_adapter = msp_probe,
1227 .detach_client = msp_detach,
1228 .command = msp_command,
1229 };
1230
1231 static struct i2c_client client_template =
1232 {
1233 I2C_DEVNAME("(unset)"),
1234 .flags = I2C_CLIENT_ALLOW_USE,
1235 .driver = &driver,
1236 };
1237
1238 static int msp_attach(struct i2c_adapter *adap, int addr, int kind)
1239 {
1240 struct msp3400c *msp;
1241 struct i2c_client *c;
1242 int i;
1243
1244 client_template.adapter = adap;
1245 client_template.addr = addr;
1246
1247 if (-1 == msp3400c_reset(&client_template)) {
1248 dprintk("msp3400: no chip found\n");
1249 return -1;
1250 }
1251
1252 if (NULL == (c = kmalloc(sizeof(struct i2c_client),GFP_KERNEL)))
1253 return -ENOMEM;
1254 memcpy(c,&client_template,sizeof(struct i2c_client));
1255 if (NULL == (msp = kmalloc(sizeof(struct msp3400c),GFP_KERNEL))) {
1256 kfree(c);
1257 return -ENOMEM;
1258 }
1259
1260 memset(msp,0,sizeof(struct msp3400c));
1261 msp->volume = 65535;
1262 msp->balance = 32768;
1263 msp->bass = 32768;
1264 msp->treble = 32768;
1265 msp->input = -1;
1266 msp->muted = 1;
1267 for (i = 0; i < DFP_COUNT; i++)
1268 msp->dfp_regs[i] = -1;
1269
1270 i2c_set_clientdata(c, msp);
1271 init_waitqueue_head(&msp->wq);
1272
1273 if (-1 == msp3400c_reset(c)) {
1274 kfree(msp);
1275 kfree(c);
1276 dprintk("msp3400: no chip found\n");
1277 return -1;
1278 }
1279
1280 msp->rev1 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1e);
1281 if (-1 != msp->rev1)
1282 msp->rev2 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1f);
1283 if ((-1 == msp->rev1) || (0 == msp->rev1 && 0 == msp->rev2)) {
1284 kfree(msp);
1285 kfree(c);
1286 printk("msp3400: error while reading chip version\n");
1287 return -1;
1288 }
1289
1290 #if 0
1291 /* this will turn on a 1kHz beep - might be useful for debugging... */
1292 msp3400c_write(c,I2C_MSP3400C_DFP, 0x0014, 0x1040);
1293 #endif
1294 msp3400c_setvolume(c, msp->muted, msp->volume, msp->balance);
1295
1296 snprintf(c->name, sizeof(c->name), "MSP34%02d%c-%c%d",
1297 (msp->rev2>>8)&0xff, (msp->rev1&0xff)+'@',
1298 ((msp->rev1>>8)&0xff)+'@', msp->rev2&0x1f);
1299
1300 if (simple == -1) {
1301 /* default mode */
1302 msp->simple = HAVE_SIMPLE(msp);
1303 } else {
1304 /* use insmod option */
1305 msp->simple = simple;
1306 }
1307
1308 /* timer for stereo checking */
1309 init_timer(&msp->wake_stereo);
1310 msp->wake_stereo.function = msp3400c_stereo_wake;
1311 msp->wake_stereo.data = (unsigned long)msp;
1312
1313 /* hello world :-) */
1314 printk(KERN_INFO "msp34xx: init: chip=%s",i2c_clientname(c));
1315 if (HAVE_NICAM(msp))
1316 printk(" +nicam");
1317 if (HAVE_SIMPLE(msp))
1318 printk(" +simple");
1319 if (HAVE_RADIO(msp))
1320 printk(" +radio");
1321 printk("\n");
1322
1323 /* startup control thread */
1324 init_completion(&msp->texit);
1325 msp->tpid = kernel_thread(msp->simple ? msp3410d_thread : msp3400c_thread,
1326 (void *)c, 0);
1327 if (msp->tpid < 0)
1328 printk(KERN_WARNING "msp34xx: kernel_thread() failed\n");
1329 wake_up_interruptible(&msp->wq);
1330
1331 /* done */
1332 i2c_attach_client(c);
1333 return 0;
1334 }
1335
1336 static int msp_detach(struct i2c_client *client)
1337 {
1338 struct msp3400c *msp = i2c_get_clientdata(client);
1339
1340 /* shutdown control thread */
1341 del_timer_sync(&msp->wake_stereo);
1342 if (msp->tpid >= 0) {
1343 msp->rmmod = 1;
1344 wake_up_interruptible(&msp->wq);
1345 wait_for_completion(&msp->texit);
1346 }
1347 msp3400c_reset(client);
1348
1349 i2c_detach_client(client);
1350 kfree(msp);
1351 kfree(client);
1352 return 0;
1353 }
1354
1355 static int msp_probe(struct i2c_adapter *adap)
1356 {
1357 #ifdef I2C_CLASS_TV_ANALOG
1358 if (adap->class & I2C_CLASS_TV_ANALOG)
1359 return i2c_probe(adap, &addr_data, msp_attach);
1360 #else
1361 switch (adap->id) {
1362 case I2C_ALGO_BIT | I2C_HW_SMBUS_VOODOO3:
1363 case I2C_ALGO_BIT | I2C_HW_B_BT848:
1364 //case I2C_ALGO_SAA7134:
1365 return i2c_probe(adap, &addr_data, msp_attach);
1366 break;
1367 }
1368 #endif
1369 return 0;
1370 }
1371
1372 static void msp_wake_thread(struct i2c_client *client)
1373 {
1374 struct msp3400c *msp = i2c_get_clientdata(client);
1375
1376 msp3400c_setvolume(client,msp->muted,0,0);
1377 msp->watch_stereo=0;
1378 del_timer(&msp->wake_stereo);
1379 if (msp->active)
1380 msp->restart = 1;
1381 wake_up_interruptible(&msp->wq);
1382 }
1383
1384 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
1385 {
1386 struct msp3400c *msp = i2c_get_clientdata(client);
1387 __u16 *sarg = arg;
1388 int scart = 0;
1389
1390 switch (cmd) {
1391
1392 case AUDC_SET_INPUT:
1393 dprintk(KERN_DEBUG "msp34xx: AUDC_SET_INPUT(%d)\n",*sarg);
1394 if (*sarg == msp->input)
1395 break;
1396 msp->input = *sarg;
1397 switch (*sarg) {
1398 case AUDIO_RADIO:
1399 /* Hauppauge uses IN2 for the radio */
1400 msp->mode = MSP_MODE_FM_RADIO;
1401 scart = SCART_IN2;
1402 break;
1403 case AUDIO_EXTERN_1:
1404 /* IN1 is often used for external input ... */
1405 msp->mode = MSP_MODE_EXTERN;
1406 scart = SCART_IN1;
1407 break;
1408 case AUDIO_EXTERN_2:
1409 /* ... sometimes it is IN2 through ;) */
1410 msp->mode = MSP_MODE_EXTERN;
1411 scart = SCART_IN2;
1412 break;
1413 case AUDIO_TUNER:
1414 msp->mode = -1;
1415 msp_wake_thread(client);
1416 break;
1417 default:
1418 if (*sarg & AUDIO_MUTE)
1419 msp3400c_set_scart(client,SCART_MUTE,0);
1420 break;
1421 }
1422 if (scart) {
1423 msp->stereo = VIDEO_SOUND_STEREO;
1424 msp3400c_set_scart(client,scart,0);
1425 msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900);
1426 msp3400c_setstereo(client,msp->stereo);
1427 }
1428 if (msp->active)
1429 msp->restart = 1;
1430 break;
1431
1432 case AUDC_SET_RADIO:
1433 dprintk(KERN_DEBUG "msp34xx: AUDC_SET_RADIO\n");
1434 msp->norm = VIDEO_MODE_RADIO;
1435 msp->watch_stereo=0;
1436 del_timer(&msp->wake_stereo);
1437 dprintk(KERN_DEBUG "msp34xx: switching to radio mode\n");
1438 if (msp->simple) {
1439 /* the thread will do for us */
1440 msp_wake_thread(client);
1441 } else {
1442 /* set msp3400 to FM radio mode */
1443 msp3400c_setmode(client,MSP_MODE_FM_RADIO);
1444 msp3400c_setcarrier(client, MSP_CARRIER(10.7),
1445 MSP_CARRIER(10.7));
1446 msp3400c_setvolume(client, msp->muted,
1447 msp->volume, msp->balance);
1448 }
1449 if (msp->active)
1450 msp->restart = 1;
1451 break;
1452
1453 #if 1
1454 /* work-in-progress: hook to control the DFP registers */
1455 case MSP_SET_DFPREG:
1456 {
1457 struct msp_dfpreg *r = arg;
1458 unsigned int i;
1459
1460 if (r->reg < 0 || r->reg >= DFP_COUNT)
1461 return -EINVAL;
1462 for (i = 0; i < ARRAY_SIZE(bl_dfp); i++)
1463 if (r->reg == bl_dfp[i])
1464 return -EINVAL;
1465 msp->dfp_regs[r->reg] = r->value;
1466 msp3400c_write(client,I2C_MSP3400C_DFP,r->reg,r->value);
1467 return 0;
1468 }
1469 case MSP_GET_DFPREG:
1470 {
1471 struct msp_dfpreg *r = arg;
1472
1473 if (r->reg < 0 || r->reg >= DFP_COUNT)
1474 return -EINVAL;
1475 r->value = msp3400c_read(client,I2C_MSP3400C_DFP,r->reg);
1476 return 0;
1477 }
1478 #endif
1479
1480 /* --- v4l ioctls --- */
1481 /* take care: bttv does userspace copying, we'll get a
1482 kernel pointer here... */
1483 case VIDIOCGAUDIO:
1484 {
1485 struct video_audio *va = arg;
1486
1487 dprintk(KERN_DEBUG "msp34xx: VIDIOCGAUDIO\n");
1488 va->flags |= VIDEO_AUDIO_VOLUME |
1489 VIDEO_AUDIO_BASS |
1490 VIDEO_AUDIO_TREBLE |
1491 VIDEO_AUDIO_MUTABLE;
1492 if (msp->muted)
1493 va->flags |= VIDEO_AUDIO_MUTE;
1494
1495 va->volume = msp->volume;
1496 va->balance = (va->volume) ? msp->balance : 32768;
1497 va->bass = msp->bass;
1498 va->treble = msp->treble;
1499
1500 if (msp->norm != VIDEO_MODE_RADIO) {
1501 autodetect_stereo(client);
1502 va->mode = msp->stereo;
1503 }
1504 break;
1505 }
1506 case VIDIOCSAUDIO:
1507 {
1508 struct video_audio *va = arg;
1509
1510 dprintk(KERN_DEBUG "msp34xx: VIDIOCSAUDIO\n");
1511 msp->muted = (va->flags & VIDEO_AUDIO_MUTE);
1512 msp->volume = va->volume;
1513 msp->balance = va->balance;
1514 msp->bass = va->bass;
1515 msp->treble = va->treble;
1516
1517 msp3400c_setvolume(client, msp->muted,
1518 msp->volume, msp->balance);
1519 msp3400c_setbass(client,msp->bass);
1520 msp3400c_settreble(client,msp->treble);
1521
1522 if (va->mode != 0 && msp->norm != VIDEO_MODE_RADIO) {
1523 msp->watch_stereo=0;
1524 del_timer(&msp->wake_stereo);
1525 msp->stereo = va->mode & 0x0f;
1526 msp3400c_setstereo(client,va->mode & 0x0f);
1527 }
1528 break;
1529 }
1530 case VIDIOCSCHAN:
1531 {
1532 struct video_channel *vc = arg;
1533
1534 dprintk(KERN_DEBUG "msp34xx: VIDIOCSCHAN (norm=%d)\n",vc->norm);
1535 msp->norm = vc->norm;
1536 break;
1537 }
1538 case VIDIOCSFREQ:
1539 {
1540 /* new channel -- kick audio carrier scan */
1541 dprintk(KERN_DEBUG "msp34xx: VIDIOCSFREQ\n");
1542 msp_wake_thread(client);
1543 break;
1544 }
1545
1546 default:
1547 /* nothing */
1548 break;
1549 }
1550 return 0;
1551 }
1552
1553 /* ----------------------------------------------------------------------- */
1554
1555 static int __init msp3400_init_module(void)
1556 {
1557 return i2c_add_driver(&driver);
1558 }
1559
1560 static void __exit msp3400_cleanup_module(void)
1561 {
1562 i2c_del_driver(&driver);
1563 }
1564
1565 module_init(msp3400_init_module);
1566 module_exit(msp3400_cleanup_module);
1567
1568 /*
1569 * Overrides for Emacs so that we follow Linus's tabbing style.
1570 * ---------------------------------------------------------------------------
1571 * Local variables:
1572 * c-basic-offset: 8
1573 * End:
1574 */
MOXA 2.6.9 from sdlinux-moxaart.tgz