xref: /dragonfly/sys/dev/video/bktr/msp34xx.c (revision 40cda7a2)
1 /*-
2  * Copyright (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/dev/bktr/msp34xx.c,v 1.5 2004/12/16 23:19:57 julian Exp
27  */
28 
29 /*
30  * programming the msp34* sound processor family
31  *
32  * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
33  *
34  * what works and what doesn't:
35  *
36  *  AM-Mono
37  *      Support for Hauppauge cards added (decoding handled by tuner) added by
38  *      Frederic Crozat <fcrozat@mail.dotcom.fr>
39  *
40  *  FM-Mono
41  *      should work. The stereo modes are backward compatible to FM-mono,
42  *      therefore FM-Mono should be allways available.
43  *
44  *  FM-Stereo (B/G, used in germany)
45  *      should work, with autodetect
46  *
47  *  FM-Stereo (satellite)
48  *      should work, no autodetect (i.e. default is mono, but you can
49  *      switch to stereo -- untested)
50  *
51  *  NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
52  *      should work, with autodetect. Support for NICAM was added by
53  *      Pekka Pietikainen <pp@netppl.fi>
54  *
55  *
56  * TODO:
57  *   - better SAT support
58  *
59  *
60  * 980623  Thomas Sailer (sailer@ife.ee.ethz.ch)
61  *         using soundcore instead of OSS
62  *
63  *
64  * The FreeBSD modifications by Alexander Langer <alex@FreeBSD.org>
65  * are in the public domain.  Please contact me (Alex) and not Gerd for
66  * any problems you encounter under FreeBSD.
67  *
68  * FreeBSD TODO:
69  * - mutex handling (currently not mp-safe)
70  * - the various options here as loader tunables or compile time or whatever
71  * - how does the new dolby flag work with the current dpl_* stuff?
72  *   Maybe it's just enough to set the dolby flag to 1 and it works.
73  *   As I don't have a dolby card myself, I can't test it, though.
74  */
75 
76 #include "opt_bktr.h"			/* Include any kernel config options */
77 #ifdef BKTR_NEW_MSP34XX_DRIVER		/* file only needed for new driver */
78 
79 #include <sys/param.h>
80 #include <sys/systm.h>
81 #include <sys/kernel.h>
82 #include <sys/vnode.h>
83 #include <sys/bus.h>
84 #include <sys/unistd.h>
85 #include <sys/kthread.h>
86 #include <sys/malloc.h>
87 
88 #include <sys/mplock2.h>
89 
90 #include <dev/video/meteor/ioctl_meteor.h>
91 #include <dev/video/bktr/ioctl_bt848.h>	/* extensions to ioctl_meteor.h */
92 #include <dev/video/bktr/bktr_reg.h>
93 #include <dev/video/bktr/bktr_tuner.h>
94 #include <dev/video/bktr/bktr_audio.h>
95 #include <dev/video/bktr/bktr_core.h>
96 
97 #define VIDEO_MODE_PAL          0
98 #define VIDEO_MODE_NTSC         1
99 #define VIDEO_MODE_SECAM        2
100 #define VIDEO_MODE_AUTO         3
101 
102 #define VIDEO_SOUND_MONO	1
103 #define VIDEO_SOUND_STEREO	2
104 #define VIDEO_SOUND_LANG1	4
105 #define VIDEO_SOUND_LANG2	8
106 
107 #define DFP_COUNT 0x41
108 #if 0 /* unused */
109 static const int bl_dfp[] = {
110 	0x00, 0x01, 0x02, 0x03,  0x06, 0x08, 0x09, 0x0a,
111 	0x0b, 0x0d, 0x0e, 0x10
112 };
113 #endif
114 
115 struct msp3400c {
116 	int simple;
117 	int nicam;
118 	int mode;
119 	int norm;
120 	int stereo;
121 	int nicam_on;
122 	int acb;
123 	int main, second;	/* sound carrier */
124 	int input;
125 
126 	int muted;
127 	int left, right;	/* volume */
128 	int bass, treble;
129 
130 	/* shadow register set */
131 	int dfp_regs[DFP_COUNT];
132 
133 	/* thread */
134 	struct thread	    *kthread;
135 
136 	int                  active,restart,rmmod;
137 
138 	int                  watch_stereo;
139 	int		     halt_thread;
140 };
141 
142 #define VIDEO_MODE_RADIO 16      /* norm magic for radio mode */
143 
144 /* ---------------------------------------------------------------------- */
145 
146 #define dprintk(args) do {						\
147 	if (bootverbose) {						\
148 		kprintf("%s: ", bktr_name(client));			\
149 		kprintf args;						\
150 	}								\
151 } while (0)
152 
153 /* ---------------------------------------------------------------------- */
154 
155 #define I2C_MSP3400C       0x80
156 #define I2C_MSP3400C_DEM   0x10
157 #define I2C_MSP3400C_DFP   0x12
158 
159 /* ----------------------------------------------------------------------- */
160 /* functions for talking to the MSP3400C Sound processor                   */
161 
msp3400c_reset(bktr_ptr_t client)162 static int msp3400c_reset(bktr_ptr_t client)
163 {
164 	/* use our own which handles config(8) options */
165 	msp_dpl_reset(client, client->msp_addr);
166 
167         return 0;
168 }
169 
170 static int
msp3400c_read(bktr_ptr_t client,int dev,int addr)171 msp3400c_read(bktr_ptr_t client, int dev, int addr)
172 {
173 	/* use our own */
174 	return(msp_dpl_read(client, client->msp_addr, dev, addr));
175 }
176 
177 static int
msp3400c_write(bktr_ptr_t client,int dev,int addr,int val)178 msp3400c_write(bktr_ptr_t client, int dev, int addr, int val)
179 {
180 	/* use our own */
181 	msp_dpl_write(client, client->msp_addr, dev, addr, val);
182 
183 	return(0);
184 }
185 
186 /* ------------------------------------------------------------------------ */
187 
188 /* This macro is allowed for *constants* only, gcc must calculate it
189    at compile time.  Remember -- no floats in kernel mode */
190 #define MSP_CARRIER(freq) ((int)((float)(freq/18.432)*(1<<24)))
191 
192 #define MSP_MODE_AM_DETECT   0
193 #define MSP_MODE_FM_RADIO    2
194 #define MSP_MODE_FM_TERRA    3
195 #define MSP_MODE_FM_SAT      4
196 #define MSP_MODE_FM_NICAM1   5
197 #define MSP_MODE_FM_NICAM2   6
198 #define MSP_MODE_AM_NICAM    7
199 #define MSP_MODE_BTSC        8
200 #define MSP_MODE_EXTERN      9
201 
202 static struct MSP_INIT_DATA_DEM {
203 	int fir1[6];
204 	int fir2[6];
205 	int cdo1;
206 	int cdo2;
207 	int ad_cv;
208 	int mode_reg;
209 	int dfp_src;
210 	int dfp_matrix;
211 } msp_init_data[] = {
212 	/* AM (for carrier detect / msp3400) */
213 	{ { 75, 19, 36, 35, 39, 40 }, { 75, 19, 36, 35, 39, 40 },
214 	  MSP_CARRIER(5.5), MSP_CARRIER(5.5),
215 	  0x00d0, 0x0500,   0x0020, 0x3000},
216 
217 	/* AM (for carrier detect / msp3410) */
218 	{ { -1, -1, -8, 2, 59, 126 }, { -1, -1, -8, 2, 59, 126 },
219 	  MSP_CARRIER(5.5), MSP_CARRIER(5.5),
220 	  0x00d0, 0x0100,   0x0020, 0x3000},
221 
222 	/* FM Radio */
223 	{ { -8, -8, 4, 6, 78, 107 }, { -8, -8, 4, 6, 78, 107 },
224 	  MSP_CARRIER(10.7), MSP_CARRIER(10.7),
225 	  0x00d0, 0x0480, 0x0020, 0x3000 },
226 
227 	/* Terrestial FM-mono + FM-stereo */
228 	{ {  3, 18, 27, 48, 66, 72 }, {  3, 18, 27, 48, 66, 72 },
229 	  MSP_CARRIER(5.5), MSP_CARRIER(5.5),
230 	  0x00d0, 0x0480,   0x0030, 0x3000},
231 
232 	/* Sat FM-mono */
233 	{ {  1,  9, 14, 24, 33, 37 }, {  3, 18, 27, 48, 66, 72 },
234 	  MSP_CARRIER(6.5), MSP_CARRIER(6.5),
235 	  0x00c6, 0x0480,   0x0000, 0x3000},
236 
237 	/* NICAM/FM --  B/G (5.5/5.85), D/K (6.5/5.85) */
238 	{ { -2, -8, -10, 10, 50, 86 }, {  3, 18, 27, 48, 66, 72 },
239 	  MSP_CARRIER(5.5), MSP_CARRIER(5.5),
240 	  0x00d0, 0x0040,   0x0120, 0x3000},
241 
242 	/* NICAM/FM -- I (6.0/6.552) */
243 	{ {  2, 4, -6, -4, 40, 94 }, {  3, 18, 27, 48, 66, 72 },
244 	  MSP_CARRIER(6.0), MSP_CARRIER(6.0),
245 	  0x00d0, 0x0040,   0x0120, 0x3000},
246 
247 	/* NICAM/AM -- L (6.5/5.85) */
248 	{ {  -2, -8, -10, 10, 50, 86 }, {  -4, -12, -9, 23, 79, 126 },
249 	  MSP_CARRIER(6.5), MSP_CARRIER(6.5),
250 	  0x00c6, 0x0140,   0x0120, 0x7c03},
251 };
252 
253 struct CARRIER_DETECT {
254 	int   cdo;
255 	char *name;
256 };
257 
258 static struct CARRIER_DETECT carrier_detect_main[] = {
259 	/* main carrier */
260 	{ MSP_CARRIER(4.5),        "4.5   NTSC"                   },
261 	{ MSP_CARRIER(5.5),        "5.5   PAL B/G"                },
262 	{ MSP_CARRIER(6.0),        "6.0   PAL I"                  },
263 	{ MSP_CARRIER(6.5),        "6.5   PAL D/K + SAT + SECAM"  }
264 };
265 
266 static struct CARRIER_DETECT carrier_detect_55[] = {
267 	/* PAL B/G */
268 	{ MSP_CARRIER(5.7421875),  "5.742 PAL B/G FM-stereo"     },
269 	{ MSP_CARRIER(5.85),       "5.85  PAL B/G NICAM"         }
270 };
271 
272 static struct CARRIER_DETECT carrier_detect_65[] = {
273 	/* PAL SAT / SECAM */
274 	{ MSP_CARRIER(5.85),       "5.85  PAL D/K + SECAM NICAM" },
275 	{ MSP_CARRIER(6.2578125),  "6.25  PAL D/K1 FM-stereo" },
276 	{ MSP_CARRIER(6.7421875),  "6.74  PAL D/K2 FM-stereo" },
277 	{ MSP_CARRIER(7.02),       "7.02  PAL SAT FM-stereo s/b" },
278 	{ MSP_CARRIER(7.20),       "7.20  PAL SAT FM-stereo s"   },
279 	{ MSP_CARRIER(7.38),       "7.38  PAL SAT FM-stereo b"   },
280 };
281 
282 #define CARRIER_COUNT(x) (sizeof(x)/sizeof(struct CARRIER_DETECT))
283 
284 /* ----------------------------------------------------------------------- */
285 
286 #define SCART_MASK    0
287 #define SCART_IN1     1
288 #define SCART_IN2     2
289 #define SCART_IN1_DA  3
290 #define SCART_IN2_DA  4
291 #define SCART_IN3     5
292 #define SCART_IN4     6
293 #define SCART_MONO    7
294 #define SCART_MUTE    8
295 
296 static int scarts[3][9] = {
297   /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
298   {  0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
299   {  0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
300   {  0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
301 };
302 
303 static char *scart_names[] = {
304   "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
305 };
306 
307 static void
msp3400c_set_scart(bktr_ptr_t client,int in,int out)308 msp3400c_set_scart(bktr_ptr_t client, int in, int out)
309 {
310 	struct msp3400c *msp = client->msp3400c_info;
311 
312 	if (-1 == scarts[out][in])
313 		return;
314 
315 	dprintk(("msp34xx: scart switch: %s => %d\n", scart_names[in], out));
316 	msp->acb &= ~scarts[out][SCART_MASK];
317 	msp->acb |=  scarts[out][in];
318 	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0013, msp->acb);
319 }
320 
321 /* ------------------------------------------------------------------------ */
322 
msp3400c_setcarrier(bktr_ptr_t client,int cdo1,int cdo2)323 static void msp3400c_setcarrier(bktr_ptr_t client, int cdo1, int cdo2)
324 {
325 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0093, cdo1 & 0xfff);
326 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x009b, cdo1 >> 12);
327 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x00a3, cdo2 & 0xfff);
328 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x00ab, cdo2 >> 12);
329 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
330 }
331 
msp3400c_setvolume(bktr_ptr_t client,int muted,int left,int right)332 static void msp3400c_setvolume(bktr_ptr_t client,
333 			       int muted, int left, int right)
334 {
335 	int vol = 0,val = 0,balance = 0;
336 
337 	if (!muted) {
338 		vol     = (left > right) ? left : right;
339 		val     = (vol * 0x73 / 65535) << 8;
340 	}
341 	if (vol > 0) {
342 		balance = ((right-left) * 127) / vol;
343 	}
344 
345 	dprintk(("msp34xx: setvolume: mute=%s %d:%d  v=0x%02x b=0x%02x\n",
346 		muted ? "on" : "off", left, right, val>>8, balance));
347 	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */
348 	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones  */
349 	/* scart - on/off only */
350 	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007, val ? 0x4000 : 0);
351 	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, balance << 8);
352 }
353 
msp3400c_setbass(bktr_ptr_t client,int bass)354 static void msp3400c_setbass(bktr_ptr_t client, int bass)
355 {
356 	int val = ((bass-32768) * 0x60 / 65535) << 8;
357 
358 	dprintk(("msp34xx: setbass: %d 0x%02x\n",bass, val>>8));
359 	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0002, val); /* loudspeaker */
360 }
361 
msp3400c_settreble(bktr_ptr_t client,int treble)362 static void msp3400c_settreble(bktr_ptr_t client, int treble)
363 {
364 	int val = ((treble-32768) * 0x60 / 65535) << 8;
365 
366 	dprintk(("msp34xx: settreble: %d 0x%02x\n",treble, val>>8));
367 	msp3400c_write(client,I2C_MSP3400C_DFP, 0x0003, val); /* loudspeaker */
368 }
369 
msp3400c_setmode(bktr_ptr_t client,int type)370 static void msp3400c_setmode(bktr_ptr_t client, int type)
371 {
372 	struct msp3400c *msp = client->msp3400c_info;
373 	int i;
374 
375 	dprintk(("msp3400: setmode: %d\n",type));
376 	msp->mode   = type;
377 	msp->stereo = VIDEO_SOUND_MONO;
378 
379 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x00bb,          /* ad_cv */
380 		       msp_init_data[type].ad_cv);
381 
382 	for (i = 5; i >= 0; i--)                                   /* fir 1 */
383 		msp3400c_write(client,I2C_MSP3400C_DEM, 0x0001,
384 			       msp_init_data[type].fir1[i]);
385 
386 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0004); /* fir 2 */
387 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0040);
388 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0000);
389 	for (i = 5; i >= 0; i--)
390 		msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005,
391 			       msp_init_data[type].fir2[i]);
392 
393 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0083,     /* MODE_REG */
394 		       msp_init_data[type].mode_reg);
395 
396 	msp3400c_setcarrier(client, msp_init_data[type].cdo1,
397 			    msp_init_data[type].cdo2);
398 
399 	msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
400 
401 	if (client->dolby) {
402 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
403 			       0x0520); /* I2S1 */
404 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
405 			       0x0620); /* I2S2 */
406 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
407 			       msp_init_data[type].dfp_src);
408 	} else {
409 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
410 			       msp_init_data[type].dfp_src);
411 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
412 			       msp_init_data[type].dfp_src);
413 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
414 			       msp_init_data[type].dfp_src);
415 	}
416 	msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,
417 		       msp_init_data[type].dfp_src);
418 	msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e,
419 		       msp_init_data[type].dfp_matrix);
420 
421 	if (msp->nicam) {
422 		/* nicam prescale */
423 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */
424 	}
425 }
426 
427 /* turn on/off nicam + stereo */
msp3400c_setstereo(bktr_ptr_t client,int mode)428 static void msp3400c_setstereo(bktr_ptr_t client, int mode)
429 {
430 	static char *strmode[] = { "0", "mono", "stereo", "3",
431 				   "lang1", "5", "6", "7", "lang2" };
432 	struct msp3400c *msp = client->msp3400c_info;
433 	int nicam=0; /* channel source: FM/AM or nicam */
434 	int src=0;
435 
436 	/* switch demodulator */
437 	switch (msp->mode) {
438 	case MSP_MODE_FM_TERRA:
439 		dprintk(("msp3400: FM setstereo: %s\n",strmode[mode]));
440 		msp3400c_setcarrier(client,msp->second,msp->main);
441 		switch (mode) {
442 		case VIDEO_SOUND_STEREO:
443 			msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001);
444 			break;
445 		case VIDEO_SOUND_MONO:
446 		case VIDEO_SOUND_LANG1:
447 		case VIDEO_SOUND_LANG2:
448 			msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000);
449 			break;
450 		}
451 		break;
452 	case MSP_MODE_FM_SAT:
453 		dprintk(("msp3400: SAT setstereo: %s\n",strmode[mode]));
454 		switch (mode) {
455 		case VIDEO_SOUND_MONO:
456 			msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
457 			break;
458 		case VIDEO_SOUND_STEREO:
459 			msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
460 			break;
461 		case VIDEO_SOUND_LANG1:
462 			msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
463 			break;
464 		case VIDEO_SOUND_LANG2:
465 			msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
466 			break;
467 		}
468 		break;
469 	case MSP_MODE_FM_NICAM1:
470 	case MSP_MODE_FM_NICAM2:
471 	case MSP_MODE_AM_NICAM:
472 		dprintk(("msp3400: NICAM setstereo: %s\n",strmode[mode]));
473 		msp3400c_setcarrier(client,msp->second,msp->main);
474 		if (msp->nicam_on)
475 			nicam=0x0100;
476 		break;
477 	case MSP_MODE_BTSC:
478 		dprintk(("msp3400: BTSC setstereo: %s\n",strmode[mode]));
479 		nicam=0x0300;
480 		break;
481 	case MSP_MODE_EXTERN:
482 		dprintk(("msp3400: extern setstereo: %s\n",strmode[mode]));
483 		nicam = 0x0200;
484 		break;
485 	case MSP_MODE_FM_RADIO:
486 		dprintk(("msp3400: FM-Radio setstereo: %s\n",strmode[mode]));
487 		break;
488 	default:
489 		dprintk(("msp3400: mono setstereo\n"));
490 		return;
491 	}
492 
493 	/* switch audio */
494 	switch (mode) {
495 	case VIDEO_SOUND_STEREO:
496 		src = 0x0020 | nicam;
497 #if 0
498 		/* spatial effect */
499 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000);
500 #endif
501 		break;
502 	case VIDEO_SOUND_MONO:
503 		if (msp->mode == MSP_MODE_AM_NICAM) {
504 			dprintk(("msp3400: switching to AM mono\n"));
505 			/* AM mono decoding is handled by tuner, not MSP chip */
506 			/* SCART switching control register */
507 			msp3400c_set_scart(client,SCART_MONO,0);
508 			src = 0x0200;
509 			break;
510 		}
511 	case VIDEO_SOUND_LANG1:
512 		src = 0x0000 | nicam;
513 		break;
514 	case VIDEO_SOUND_LANG2:
515 		src = 0x0010 | nicam;
516 		break;
517 	}
518 	dprintk(("msp3400: setstereo final source/matrix = 0x%x\n", src));
519 
520 	if (client->dolby) {
521 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,0x0520);
522 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,0x0620);
523 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
524 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
525 	} else {
526 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,src);
527 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,src);
528 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
529 		msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
530 	}
531 }
532 
533 static void
msp3400c_print_mode(struct msp3400c * msp)534 msp3400c_print_mode(struct msp3400c *msp)
535 {
536 	if (msp->main == msp->second) {
537 		kprintf("bktr: msp3400: mono sound carrier: %d.%03d MHz\n",
538 		       msp->main/910000,(msp->main/910)%1000);
539 	} else {
540 		kprintf("bktr: msp3400: main sound carrier: %d.%03d MHz\n",
541 		       msp->main/910000,(msp->main/910)%1000);
542 	}
543 	if (msp->mode == MSP_MODE_FM_NICAM1 ||
544 	    msp->mode == MSP_MODE_FM_NICAM2)
545 		kprintf("bktr: msp3400: NICAM/FM carrier   : %d.%03d MHz\n",
546 		       msp->second/910000,(msp->second/910)%1000);
547 	if (msp->mode == MSP_MODE_AM_NICAM)
548 		kprintf("bktr: msp3400: NICAM/AM carrier   : %d.%03d MHz\n",
549 		       msp->second/910000,(msp->second/910)%1000);
550 	if (msp->mode == MSP_MODE_FM_TERRA &&
551 	    msp->main != msp->second) {
552 		kprintf("bktr: msp3400: FM-stereo carrier : %d.%03d MHz\n",
553 		       msp->second/910000,(msp->second/910)%1000);
554 	}
555 }
556 
557 static void
msp3400c_restore_dfp(bktr_ptr_t client)558 msp3400c_restore_dfp(bktr_ptr_t client)
559 {
560 	struct msp3400c *msp = (struct msp3400c*)client->msp3400c_info;
561 	int i;
562 
563 	for (i = 0; i < DFP_COUNT; i++) {
564 		if (-1 == msp->dfp_regs[i])
565 			continue;
566 		msp3400c_write(client,I2C_MSP3400C_DFP, i, msp->dfp_regs[i]);
567 	}
568 }
569 
570 /* ----------------------------------------------------------------------- */
571 
572 struct REGISTER_DUMP {
573 	int   addr;
574 	char *name;
575 };
576 
577 struct REGISTER_DUMP d1[] = {
578 	{ 0x007e, "autodetect" },
579 	{ 0x0023, "C_AD_BITS " },
580 	{ 0x0038, "ADD_BITS  " },
581 	{ 0x003e, "CIB_BITS  " },
582 	{ 0x0057, "ERROR_RATE" },
583 };
584 
585 static int
autodetect_stereo(bktr_ptr_t client)586 autodetect_stereo(bktr_ptr_t client)
587 {
588 	struct msp3400c *msp = (struct msp3400c*)client->msp3400c_info;
589 	int val;
590 	int newstereo = msp->stereo;
591 	int newnicam  = msp->nicam_on;
592 	int update = 0;
593 
594 	switch (msp->mode) {
595 	case MSP_MODE_FM_TERRA:
596 		val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x18);
597 		if (val > 32767)
598 			val -= 65536;
599 		dprintk(("msp34xx: stereo detect register: %d\n",val));
600 
601 		if (val > 4096) {
602 			newstereo = VIDEO_SOUND_STEREO | VIDEO_SOUND_MONO;
603 		} else if (val < -4096) {
604 			newstereo = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
605 		} else {
606 			newstereo = VIDEO_SOUND_MONO;
607 		}
608 		newnicam = 0;
609 		break;
610 	case MSP_MODE_FM_NICAM1:
611 	case MSP_MODE_FM_NICAM2:
612 	case MSP_MODE_AM_NICAM:
613 		val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x23);
614 		dprintk(("msp34xx: nicam sync=%d, mode=%d\n",
615 			 val & 1, (val & 0x1e) >> 1));
616 
617 		if (val & 1) {
618 			/* nicam synced */
619 			switch ((val & 0x1e) >> 1)  {
620 			case 0:
621 			case 8:
622 				newstereo = VIDEO_SOUND_STEREO;
623 				break;
624 			case 1:
625 			case 9:
626 				newstereo = VIDEO_SOUND_MONO
627 					| VIDEO_SOUND_LANG1;
628 				break;
629 			case 2:
630 			case 10:
631 				newstereo = VIDEO_SOUND_MONO
632 					| VIDEO_SOUND_LANG1
633 					| VIDEO_SOUND_LANG2;
634 				break;
635 			default:
636 				newstereo = VIDEO_SOUND_MONO;
637 				break;
638 			}
639 			newnicam=1;
640 		} else {
641 			newnicam = 0;
642 			newstereo = VIDEO_SOUND_MONO;
643 		}
644 		break;
645 	case MSP_MODE_BTSC:
646 		val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200);
647 		dprintk(("msp3410: status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
648 			 val,
649 			 (val & 0x0002) ? "no"     : "yes",
650 			 (val & 0x0004) ? "no"     : "yes",
651 			 (val & 0x0040) ? "stereo" : "mono",
652 			 (val & 0x0080) ? ", nicam 2nd mono" : "",
653 			 (val & 0x0100) ? ", bilingual/SAP"  : ""));
654 		newstereo = VIDEO_SOUND_MONO;
655 		if (val & 0x0040) newstereo |= VIDEO_SOUND_STEREO;
656 		if (val & 0x0100) newstereo |= VIDEO_SOUND_LANG1;
657 		break;
658 	}
659 	if (newstereo != msp->stereo) {
660 		update = 1;
661 		dprintk(("msp34xx: watch: stereo %d => %d\n",
662 			 msp->stereo,newstereo));
663 		msp->stereo   = newstereo;
664 	}
665 	if (newnicam != msp->nicam_on) {
666 		update = 1;
667 		dprintk(("msp34xx: watch: nicam %d => %d\n",
668 			 msp->nicam_on,newnicam));
669 		msp->nicam_on = newnicam;
670 	}
671 	return update;
672 }
673 
674 /*
675  * A kernel thread for msp3400 control -- we don't want to block the
676  * in the ioctl while doing the sound carrier & stereo detect
677  */
678 
679 /* stereo/multilang monitoring */
watch_stereo(bktr_ptr_t client)680 static void watch_stereo(bktr_ptr_t client)
681 {
682 	struct msp3400c *msp = (struct msp3400c*)client->msp3400c_info;
683 
684 	if (autodetect_stereo(client)) {
685 		if (msp->stereo & VIDEO_SOUND_STEREO)
686 			msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
687 		else if (msp->stereo & VIDEO_SOUND_LANG1)
688 			msp3400c_setstereo(client,VIDEO_SOUND_LANG1);
689 		else
690 			msp3400c_setstereo(client,VIDEO_SOUND_MONO);
691 	}
692 	if (client->stereo_once)
693 		msp->watch_stereo = 0;
694 
695 }
696 
697 static void
msp3400c_thread(void * data)698 msp3400c_thread(void *data)
699 {
700 	bktr_ptr_t client = data;
701 	struct msp3400c *msp = (struct msp3400c*)client->msp3400c_info;
702 	struct CARRIER_DETECT *cd;
703 	int count, max1,max2,val1,val2, val,this;
704 
705 	get_mplock();
706 
707 	dprintk(("msp3400: thread started\n"));
708 
709 	for (;;) {
710 		if (msp->rmmod)
711 			goto done;
712 		tsleep(msp->kthread, 0, "idle", 0);
713 		if (msp->rmmod)
714 			goto done;
715 		if (msp->halt_thread) {
716 			msp->watch_stereo = 0;
717 			msp->halt_thread = 0;
718 			continue;
719 		}
720 
721 		if (VIDEO_MODE_RADIO == msp->norm ||
722 		    MSP_MODE_EXTERN  == msp->mode)
723 			continue;  /* nothing to do */
724 
725 		msp->active = 1;
726 
727 		if (msp->watch_stereo) {
728 			watch_stereo(client);
729 			msp->active = 0;
730 			continue;
731 		}
732 
733 		/* some time for the tuner to sync */
734 		tsleep(msp->kthread, 0, "tuner sync", hz/2);
735 
736 	restart:
737 		if (VIDEO_MODE_RADIO == msp->norm ||
738 		    MSP_MODE_EXTERN  == msp->mode)
739 			continue;  /* nothing to do */
740 		msp->restart = 0;
741 		msp3400c_setvolume(client, msp->muted, 0, 0);
742 		msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
743 		val1 = val2 = 0;
744 		max1 = max2 = -1;
745 		msp->watch_stereo = 0;
746 
747 		/* carrier detect pass #1 -- main carrier */
748 		cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main);
749 
750 		if (client->amsound && (msp->norm == VIDEO_MODE_SECAM)) {
751 			/* autodetect doesn't work well with AM ... */
752 			max1 = 3;
753 			count = 0;
754 			dprintk(("msp3400: AM sound override\n"));
755 		}
756 
757 		for (this = 0; this < count; this++) {
758 			msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
759 
760 			tsleep(msp->kthread, 0, "carrier detect", hz/100);
761 
762 			if (msp->restart)
763 				msp->restart = 0;
764 
765 			val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
766 			if (val > 32767)
767 				val -= 65536;
768 			if (val1 < val)
769 				val1 = val, max1 = this;
770 			dprintk(("msp3400: carrier1 val: %5d / %s\n", val,
771 				 cd[this].name));
772 		}
773 
774 		/* carrier detect pass #2 -- second (stereo) carrier */
775 		switch (max1) {
776 		case 1: /* 5.5 */
777 			cd = carrier_detect_55; count = CARRIER_COUNT(carrier_detect_55);
778 			break;
779 		case 3: /* 6.5 */
780 			cd = carrier_detect_65; count = CARRIER_COUNT(carrier_detect_65);
781 			break;
782 		case 0: /* 4.5 */
783 		case 2: /* 6.0 */
784 		default:
785 			cd = NULL; count = 0;
786 			break;
787 		}
788 
789 		if (client->amsound && (msp->norm == VIDEO_MODE_SECAM)) {
790 			/* autodetect doesn't work well with AM ... */
791 			cd = NULL; count = 0; max2 = 0;
792 		}
793 		for (this = 0; this < count; this++) {
794 			msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
795 
796 			tsleep(msp->kthread, 0, "carrier detection", hz/100);
797 			if (msp->restart)
798 				goto restart;
799 
800 			val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
801 			if (val > 32767)
802 				val -= 65536;
803 			if (val2 < val)
804 				val2 = val, max2 = this;
805 			dprintk(("msp3400: carrier2 val: %5d / %s\n", val,
806 				 cd[this].name));
807 		}
808 
809 		/* programm the msp3400 according to the results */
810 		msp->main   = carrier_detect_main[max1].cdo;
811 		switch (max1) {
812 		case 1: /* 5.5 */
813 			if (max2 == 0) {
814 				/* B/G FM-stereo */
815 				msp->second = carrier_detect_55[max2].cdo;
816 				msp3400c_setmode(client, MSP_MODE_FM_TERRA);
817 				msp->nicam_on = 0;
818 				/* XXX why mono? this probably can do stereo... - Alex*/
819 				msp3400c_setstereo(client, VIDEO_SOUND_MONO);
820 				msp->watch_stereo = 1;
821 			} else if (max2 == 1 && msp->nicam) {
822 				/* B/G NICAM */
823 				msp->second = carrier_detect_55[max2].cdo;
824 				msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
825 				msp->nicam_on = 1;
826 				msp3400c_setcarrier(client, msp->second, msp->main);
827 				msp->watch_stereo = 1;
828 			} else {
829 				goto no_second;
830 			}
831 			break;
832 		case 2: /* 6.0 */
833 			/* PAL I NICAM */
834 			msp->second = MSP_CARRIER(6.552);
835 			msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
836 			msp->nicam_on = 1;
837 			msp3400c_setcarrier(client, msp->second, msp->main);
838 			msp->watch_stereo = 1;
839 			break;
840 		case 3: /* 6.5 */
841 			if (max2 == 1 || max2 == 2) {
842 				/* D/K FM-stereo */
843 				msp->second = carrier_detect_65[max2].cdo;
844 				msp3400c_setmode(client, MSP_MODE_FM_TERRA);
845 				msp->nicam_on = 0;
846 				msp3400c_setstereo(client, VIDEO_SOUND_MONO);
847 				msp->watch_stereo = 1;
848 			} else if (max2 == 0 &&
849 				   msp->norm == VIDEO_MODE_SECAM) {
850 				/* L NICAM or AM-mono */
851 				msp->second = carrier_detect_65[max2].cdo;
852 				msp3400c_setmode(client, MSP_MODE_AM_NICAM);
853 				msp->nicam_on = 0;
854 				msp3400c_setstereo(client, VIDEO_SOUND_MONO);
855 				msp3400c_setcarrier(client, msp->second, msp->main);
856 				/* volume prescale for SCART (AM mono input) */
857 				msp3400c_write(client,I2C_MSP3400C_DFP, 0x000d, 0x1900);
858 				msp->watch_stereo = 1;
859 			} else if (max2 == 0 && msp->nicam) {
860 				/* D/K NICAM */
861 				msp->second = carrier_detect_65[max2].cdo;
862 				msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
863 				msp->nicam_on = 1;
864 				msp3400c_setcarrier(client, msp->second, msp->main);
865 				msp->watch_stereo = 1;
866 			} else {
867 				goto no_second;
868 			}
869 			break;
870 		case 0: /* 4.5 */
871 		default:
872 		no_second:
873 			msp->second = carrier_detect_main[max1].cdo;
874 			msp3400c_setmode(client, MSP_MODE_FM_TERRA);
875 			msp->nicam_on = 0;
876 			msp3400c_setcarrier(client, msp->second, msp->main);
877 			msp->stereo = VIDEO_SOUND_MONO;
878 			msp3400c_setstereo(client, VIDEO_SOUND_MONO);
879 			break;
880 		}
881 
882 		if (msp->watch_stereo)
883 			watch_stereo(client);
884 
885 		/* unmute + restore dfp registers */
886 		msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
887 		msp3400c_restore_dfp(client);
888 
889 		if (bootverbose)
890 			msp3400c_print_mode(msp);
891 
892 		msp->active = 0;
893 	}
894 
895 done:
896 	dprintk(("msp3400: thread: exit\n"));
897 	msp->active = 0;
898 
899 	msp->kthread = NULL;
900 	wakeup(&msp->kthread);
901 	rel_mplock();
902 }
903 
904 /* ----------------------------------------------------------------------- */
905 /* this one uses the automatic sound standard detection of newer           */
906 /* msp34xx chip versions                                                   */
907 
908 static struct MODES {
909 	int retval;
910 	int main, second;
911 	char *name;
912 } modelist[] = {
913 	{ 0x0000, 0, 0, "ERROR" },
914 	{ 0x0001, 0, 0, "autodetect start" },
915 	{ 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72  M Dual FM-Stereo" },
916 	{ 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74  B/G Dual FM-Stereo" },
917 	{ 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25  D/K1 Dual FM-Stereo" },
918 	{ 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74  D/K2 Dual FM-Stereo" },
919 	{ 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  D/K FM-Mono (HDEV3)" },
920 	{ 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85  B/G NICAM FM" },
921 	{ 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  L NICAM AM" },
922 	{ 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55  I NICAM FM" },
923 	{ 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM" },
924 	{ 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM (HDEV2)" },
925 	{ 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Stereo" },
926 	{ 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Mono + SAP" },
927 	{ 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M EIA-J Japan Stereo" },
928 	{ 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7  FM-Stereo Radio" },
929 	{ 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  SAT-Mono" },
930 	{ 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20  SAT-Stereo" },
931 	{ 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2  SAT ADR" },
932 	{     -1, 0, 0, NULL }, /* EOF */
933 };
934 
msp3410d_thread(void * data)935 static void msp3410d_thread(void *data)
936 {
937 	bktr_ptr_t client = data;
938 	struct msp3400c *msp = (struct msp3400c*)client->msp3400c_info;
939 	int mode,val,i,std;
940 	int timo = 0;
941 
942 	get_mplock();
943 	dprintk(("msp3410: thread started\n"));
944 
945 	for (;;) {
946 		if (msp->rmmod)
947 			goto done;
948 		if (!msp->watch_stereo)
949 			timo = 0;
950 		else
951 			timo = 10*hz;
952 		tsleep(msp->kthread, 0, "idle", timo);
953 		if (msp->rmmod)
954 			goto done;
955 		if (msp->halt_thread) {
956 			msp->watch_stereo = 0;
957 			msp->halt_thread = 0;
958 			dprintk(("msp3410: thread halted\n"));
959 			continue;
960 		}
961 
962 		if (msp->mode == MSP_MODE_EXTERN)
963 			continue;
964 
965 		msp->active = 1;
966 
967 		if (msp->watch_stereo) {
968 			watch_stereo(client);
969 			msp->active = 0;
970 			continue;
971 		}
972 
973 		/* some time for the tuner to sync */
974 		tsleep(msp->kthread, 0, "tuner sync", hz/2);
975 
976 	restart:
977 		if (msp->mode == MSP_MODE_EXTERN)
978 			continue;
979 		msp->restart = 0;
980 		msp->watch_stereo = 0;
981 
982 		/* put into sane state (and mute) */
983 		msp3400c_reset(client);
984 
985 		/* start autodetect */
986 		switch (msp->norm) {
987 		case VIDEO_MODE_PAL:
988 			mode = 0x1003;
989 			std  = 1;
990 			break;
991 		case VIDEO_MODE_NTSC:  /* BTSC */
992 			mode = 0x2003;
993 			std  = 0x0020;
994 			break;
995 		case VIDEO_MODE_SECAM:
996 			mode = 0x0003;
997 			std  = 1;
998 			break;
999 		case VIDEO_MODE_RADIO:
1000 			mode = 0x0003;
1001 			std  = 0x0040;
1002 			break;
1003 		default:
1004 			mode = 0x0003;
1005 			std  = 1;
1006 			break;
1007 		}
1008 		msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode);
1009 		msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std);
1010 
1011 		if (bootverbose) {
1012 			int i;
1013 			for (i = 0; modelist[i].name != NULL; i++)
1014 				if (modelist[i].retval == std)
1015 					break;
1016 			dprintk(("msp3410: setting mode: %s (0x%04x)\n",
1017 			        modelist[i].name ? modelist[i].name : "unknown",
1018 				std));
1019 		}
1020 
1021 		if (std != 1) {
1022 			/* programmed some specific mode */
1023 			val = std;
1024 		} else {
1025 			/* triggered autodetect */
1026 			for (;;) {
1027 				tsleep(msp->kthread, 0, "autodetection", hz/10);
1028 				if (msp->restart)
1029 					goto restart;
1030 
1031 				/* check results */
1032 				val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
1033 				if (val < 0x07ff)
1034 					break;
1035 				dprintk(("msp3410: detection still in progress\n"));
1036 			}
1037 		}
1038 		for (i = 0; modelist[i].name != NULL; i++)
1039 			if (modelist[i].retval == val)
1040 				break;
1041 		dprintk(("msp3410: current mode: %s (0x%04x)\n",
1042 			 modelist[i].name ? modelist[i].name : "unknown",
1043 			 val));
1044 		msp->main   = modelist[i].main;
1045 		msp->second = modelist[i].second;
1046 
1047 		if (client->amsound && (msp->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
1048 			/* autodetection has failed, let backup */
1049 			dprintk(("msp3410: autodetection failed, switching to backup mode: %s (0x%04x)\n",
1050 				modelist[8].name ? modelist[8].name : "unknown",val));
1051 			val = 0x0009;
1052 			msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, val);
1053 		}
1054 
1055 		/* set various prescales */
1056 		msp3400c_write(client, I2C_MSP3400C_DFP, 0x0d, 0x1900); /* scart */
1057 		msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */
1058 		msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00); /* nicam */
1059 
1060 		/* set stereo */
1061 		switch (val) {
1062 		case 0x0008: /* B/G NICAM */
1063 		case 0x000a: /* I NICAM */
1064 			if (val == 0x0008)
1065 				msp->mode = MSP_MODE_FM_NICAM1;
1066 			else
1067 				msp->mode = MSP_MODE_FM_NICAM2;
1068 			/* just turn on stereo */
1069 			msp->stereo = VIDEO_SOUND_STEREO;
1070 			msp->nicam_on = 1;
1071 			msp->watch_stereo = 1;
1072 			msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
1073 			break;
1074 		case 0x0009:
1075 			msp->mode = MSP_MODE_AM_NICAM;
1076 			msp->stereo = VIDEO_SOUND_MONO;
1077 			msp->nicam_on = 1;
1078 			msp3400c_setstereo(client,VIDEO_SOUND_MONO);
1079 			msp->watch_stereo = 1;
1080 			break;
1081 		case 0x0020: /* BTSC */
1082 			/* just turn on stereo */
1083 			msp->mode   = MSP_MODE_BTSC;
1084 			msp->stereo = VIDEO_SOUND_STEREO;
1085 			msp->nicam_on = 0;
1086 			msp->watch_stereo = 1;
1087 			msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
1088 			break;
1089 		case 0x0040: /* FM radio */
1090 			msp->mode   = MSP_MODE_FM_RADIO;
1091 			msp->stereo = VIDEO_SOUND_STEREO;
1092 			msp->nicam_on = 0;
1093 			msp->watch_stereo = 0;
1094 			/* scart routing */
1095 			msp3400c_set_scart(client,SCART_IN2,0);
1096 			msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0220);
1097 			msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0220);
1098 			msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0220);
1099 			break;
1100 		case 0x0003:
1101 			msp->mode   = MSP_MODE_FM_TERRA;
1102 			msp->stereo = VIDEO_SOUND_STEREO;
1103 			msp->nicam_on = 0;
1104 			msp->watch_stereo = 1;
1105 			msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
1106 			break;
1107 		}
1108 
1109 		if (msp->watch_stereo)
1110 			watch_stereo(client);
1111 
1112 		/* unmute + restore dfp registers */
1113 		msp3400c_setbass(client, msp->bass);
1114 		msp3400c_settreble(client, msp->treble);
1115 		msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
1116 		msp3400c_restore_dfp(client);
1117 
1118 		msp->active = 0;
1119 	}
1120 
1121 done:
1122 	dprintk(("msp3410: thread: exit\n"));
1123 	msp->active = 0;
1124 
1125 	msp->kthread = NULL;
1126 	wakeup(&msp->kthread);
1127 
1128 	rel_mplock();
1129 }
1130 
msp_attach(bktr_ptr_t bktr)1131 int msp_attach(bktr_ptr_t bktr)
1132 {
1133 	struct msp3400c *msp;
1134 	int              rev1,rev2,i;
1135 	int		 err;
1136 	char		 buf[20];
1137 
1138 	msp = (struct msp3400c *) kmalloc(sizeof(struct msp3400c), M_DEVBUF, M_NOWAIT);
1139 	if (msp == NULL)
1140                 return ENOMEM;
1141 	bktr->msp3400c_info = msp;
1142 
1143 	memset(msp,0,sizeof(struct msp3400c));
1144 	msp->left   = 65535;
1145 	msp->right  = 65535;
1146 	msp->bass   = 32768;
1147 	msp->treble = 32768;
1148 	msp->input  = -1;
1149 
1150 	for (i = 0; i < DFP_COUNT; i++)
1151 		msp->dfp_regs[i] = -1;
1152 
1153 	msp3400c_reset(bktr);
1154 
1155 	rev1 = msp3400c_read(bktr, I2C_MSP3400C_DFP, 0x1e);
1156 	if (-1 != rev1)
1157 		rev2 = msp3400c_read(bktr, I2C_MSP3400C_DFP, 0x1f);
1158 	if ((-1 == rev1) || (0 == rev1 && 0 == rev2)) {
1159 		kfree(msp, M_DEVBUF);
1160 		bktr->msp3400c_info = NULL;
1161 		kprintf("%s: msp3400: error while reading chip version\n", bktr_name(bktr));
1162 		return ENXIO;
1163 	}
1164 
1165 #if 0
1166 	/* this will turn on a 1kHz beep - might be useful for debugging... */
1167 	msp3400c_write(bktr,I2C_MSP3400C_DFP, 0x0014, 0x1040);
1168 #endif
1169 
1170 	ksprintf(buf,"MSP34%02d%c-%c%d",
1171 		(rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f);
1172 	msp->nicam = (((rev2>>8)&0xff) != 00) ? 1 : 0;
1173 
1174 	if (bktr->mspsimple == -1) {
1175 		/* default mode */
1176 		/* msp->simple = (((rev2>>8)&0xff) == 0) ? 0 : 1; */
1177 		msp->simple = ((rev1&0xff)+'@' > 'C');
1178 	} else {
1179 		/* use kenv value */
1180 		msp->simple = bktr->mspsimple;
1181 	}
1182 
1183 	/* hello world :-) */
1184 	if (bootverbose) {
1185 		kprintf("%s: msp34xx: init: chip=%s", bktr_name(bktr), buf);
1186 		if (msp->nicam)
1187 			kprintf(", has NICAM support");
1188 		kprintf("\n");
1189 	}
1190 
1191 	/* startup control thread */
1192 	err = kthread_create(msp->simple ? msp3410d_thread : msp3400c_thread,
1193 	    bktr, &msp->kthread, "%s_msp34xx_thread", bktr->bktr_xname);
1194 	if (err) {
1195 		kprintf("%s: Error returned by kthread_create: %d", bktr_name(bktr), err);
1196 		kfree(msp, M_DEVBUF);
1197 		bktr->msp3400c_info = NULL;
1198 		return ENXIO;
1199 	}
1200 	wakeup(msp->kthread);
1201 
1202 	/* done */
1203 	return 0;
1204 }
1205 
msp_detach(bktr_ptr_t client)1206 int msp_detach(bktr_ptr_t client)
1207 {
1208 	struct msp3400c *msp  = (struct msp3400c*)client->msp3400c_info;
1209 
1210 	/* shutdown control thread */
1211 	if (msp->kthread)
1212 	{
1213 		/* XXX mutex lock required */
1214 		msp->rmmod = 1;
1215 		msp->watch_stereo = 0;
1216 		wakeup(msp->kthread);
1217 
1218 		while (msp->kthread)
1219 			tsleep(&msp->kthread, 0, "wait for kthread", hz/10);
1220 	}
1221 
1222 	if (client->msp3400c_info != NULL) {
1223 		kfree(client->msp3400c_info, M_DEVBUF);
1224 		client->msp3400c_info = NULL;
1225 	}
1226 
1227     	msp3400c_reset(client);
1228 
1229 	return 0;
1230 }
1231 
msp_wake_thread(bktr_ptr_t client)1232 void msp_wake_thread(bktr_ptr_t client)
1233 {
1234 	struct msp3400c *msp  = (struct msp3400c*)client->msp3400c_info;
1235 
1236 	msp3400c_setvolume(client,msp->muted,0,0);
1237 	msp->watch_stereo=0;
1238 	if (msp->active)
1239 		msp->restart = 1;
1240 	wakeup(msp->kthread);
1241 }
1242 
msp_halt_thread(bktr_ptr_t client)1243 void msp_halt_thread(bktr_ptr_t client)
1244 {
1245 	struct msp3400c *msp  = (struct msp3400c*)client->msp3400c_info;
1246 
1247 	msp3400c_setvolume(client,msp->muted,0,0);
1248 	if (msp->active)
1249 		msp->restart = 1;
1250 	msp->halt_thread = 1;
1251 	wakeup(msp->kthread);
1252 }
1253 #endif /* BKTR_NEW_MSP34XX_DRIVER */
1254