Line data Source code
1 : /* $OpenBSD: bktr_audio.c,v 1.12 2015/03/14 03:38:49 jsg Exp $ */
2 : /* $FreeBSD: src/sys/dev/bktr/bktr_audio.c,v 1.8 2000/10/31 13:09:56 roger Exp $ */
3 : /*
4 : * This is part of the Driver for Video Capture Cards (Frame grabbers)
5 : * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
6 : * chipset.
7 : * Copyright Roger Hardiman and Amancio Hasty.
8 : *
9 : * bktr_audio : This deals with controlling the audio on TV cards,
10 : * controlling the Audio Multiplexer (audio source selector).
11 : * controlling any MSP34xx stereo audio decoders.
12 : * controlling any DPL35xx dolby surround sound audio decoders.
13 : * initialising TDA98xx audio devices.
14 : *
15 : */
16 :
17 : /*
18 : * 1. Redistributions of source code must retain the
19 : * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
20 : * All rights reserved.
21 : *
22 : * Redistribution and use in source and binary forms, with or without
23 : * modification, are permitted provided that the following conditions
24 : * are met:
25 : * 1. Redistributions of source code must retain the above copyright
26 : * notice, this list of conditions and the following disclaimer.
27 : * 2. Redistributions in binary form must reproduce the above copyright
28 : * notice, this list of conditions and the following disclaimer in the
29 : * documentation and/or other materials provided with the distribution.
30 : * 3. All advertising materials mentioning features or use of this software
31 : * must display the following acknowledgement:
32 : * This product includes software developed by Amancio Hasty and
33 : * Roger Hardiman
34 : * 4. The name of the author may not be used to endorse or promote products
35 : * derived from this software without specific prior written permission.
36 : *
37 : * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
38 : * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
39 : * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40 : * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
41 : * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
42 : * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
43 : * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 : * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
46 : * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
47 : * POSSIBILITY OF SUCH DAMAGE.
48 : */
49 :
50 : #include <sys/param.h>
51 : #include <sys/systm.h>
52 : #include <sys/kernel.h>
53 : #include <sys/vnode.h>
54 :
55 : #include <dev/ic/bt8xx.h> /* OpenBSD location of .h files */
56 : #include <dev/pci/bktr/bktr_reg.h>
57 : #include <dev/pci/bktr/bktr_core.h>
58 : #include <dev/pci/bktr/bktr_card.h>
59 : #include <dev/pci/bktr/bktr_audio.h>
60 :
61 : /*
62 : * Prototypes for the GV_BCTV specific functions.
63 : */
64 : void set_bctv_audio( bktr_ptr_t bktr );
65 : void bctv_gpio_write( bktr_ptr_t bktr, int port, int val );
66 : /*int bctv_gpio_read( bktr_ptr_t bktr, int port );*/ /* Not used */
67 :
68 :
69 :
70 : /*
71 : * init_audio_devices
72 : * Reset any MSP34xx or TDA98xx audio devices.
73 : */
74 0 : void init_audio_devices( bktr_ptr_t bktr ) {
75 :
76 : /* enable stereo if appropriate on TDA audio chip */
77 0 : if ( bktr->card.dbx )
78 0 : init_BTSC( bktr );
79 :
80 : /* reset the MSP34xx stereo audio chip */
81 0 : if ( bktr->card.msp3400c )
82 0 : msp_dpl_reset( bktr, bktr->msp_addr );
83 :
84 : /* reset the DPL35xx dolby audio chip */
85 0 : if ( bktr->card.dpl3518a )
86 0 : msp_dpl_reset( bktr, bktr->dpl_addr );
87 :
88 0 : }
89 :
90 :
91 : /*
92 : *
93 : */
94 : #define AUDIOMUX_DISCOVER_NOT
95 : int
96 0 : set_audio( bktr_ptr_t bktr, int cmd )
97 : {
98 : u_int temp;
99 0 : volatile u_char idx;
100 :
101 : #if defined( AUDIOMUX_DISCOVER )
102 : if ( cmd >= 200 )
103 : cmd -= 200;
104 : else
105 : #endif /* AUDIOMUX_DISCOVER */
106 :
107 : /* check for existance of audio MUXes */
108 0 : if ( !bktr->card.audiomuxs[ 4 ] )
109 0 : return( -1 );
110 :
111 0 : switch (cmd) {
112 : case AUDIO_TUNER:
113 0 : if (bktr->reverse_mute )
114 0 : bktr->audio_mux_select = 0;
115 : else
116 0 : bktr->audio_mux_select = 3;
117 :
118 : break;
119 : case AUDIO_EXTERN:
120 0 : bktr->audio_mux_select = 1;
121 0 : break;
122 : case AUDIO_INTERN:
123 0 : bktr->audio_mux_select = 2;
124 0 : break;
125 : case AUDIO_MUTE:
126 0 : bktr->audio_mute_state = TRUE; /* set mute */
127 0 : break;
128 : case AUDIO_UNMUTE:
129 0 : bktr->audio_mute_state = FALSE; /* clear mute */
130 0 : break;
131 : default:
132 0 : printf("%s: audio cmd error %02x\n", bktr_name(bktr),
133 : cmd);
134 0 : return( -1 );
135 : }
136 :
137 :
138 : /* Most cards have a simple audio multiplexer to select the
139 : * audio source. The I/O_GV card has a more advanced multiplexer
140 : * and requires special handling.
141 : */
142 0 : if ( bktr->bt848_card == CARD_IO_GV ) {
143 0 : set_bctv_audio( bktr );
144 0 : return( 0 );
145 : }
146 :
147 : /* Proceed with the simpler audio multiplexer code for the majority
148 : * of Bt848 cards.
149 : */
150 :
151 : /*
152 : * Leave the upper bits of the GPIO port alone in case they control
153 : * something like the dbx or teletext chips. This doesn't guarantee
154 : * success, but follows the rule of least astonishment.
155 : */
156 :
157 0 : if ( bktr->audio_mute_state == TRUE ) {
158 0 : if (bktr->reverse_mute )
159 0 : idx = 3;
160 : else
161 0 : idx = 0;
162 : }
163 : else
164 0 : idx = bktr->audio_mux_select;
165 :
166 :
167 0 : temp = INL(bktr, BKTR_GPIO_DATA) & ~bktr->card.gpio_mux_bits;
168 : #if defined( AUDIOMUX_DISCOVER )
169 : OUTL(bktr, BKTR_GPIO_DATA, temp | (cmd & 0xff));
170 : printf("%s: cmd: %d audio mux %x temp %x \n", bktr_name(bktr),
171 : cmd, bktr->card.audiomuxs[ idx ], temp );
172 : #else
173 0 : OUTL(bktr, BKTR_GPIO_DATA, temp | bktr->card.audiomuxs[ idx ]);
174 : #endif /* AUDIOMUX_DISCOVER */
175 :
176 :
177 :
178 : /* Some new Hauppauge cards do not have an audio mux */
179 : /* Instead we use the MSP34xx chip to select TV audio, Line-In */
180 : /* FM Radio and Mute */
181 : /* Examples of this are the Hauppauge 44xxx MSP34xx models */
182 : /* It is ok to drive both the mux and the MSP34xx chip. */
183 : /* If there is no mux, the MSP does the switching of the audio source */
184 : /* If there is a mux, it does the switching of the audio source */
185 :
186 0 : if ((bktr->card.msp3400c) && (bktr->audio_mux_present == 0)) {
187 :
188 0 : if (bktr->audio_mute_state == TRUE ) {
189 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x0000); /* volume to MUTE */
190 0 : } else {
191 0 : if(bktr->audio_mux_select == 0) { /* TV Tuner */
192 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
193 0 : if (bktr->msp_source_selected != 0) msp_autodetect(bktr); /* setup TV audio mode */
194 0 : bktr->msp_source_selected = 0;
195 0 : }
196 0 : if(bktr->audio_mux_select == 1) { /* Line In */
197 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
198 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */
199 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */
200 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0000); /* DSP In = SC1_IN_L/R */
201 0 : bktr->msp_source_selected = 1;
202 0 : }
203 :
204 0 : if(bktr->audio_mux_select == 2) { /* FM Radio */
205 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
206 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */
207 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */
208 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0200); /* DSP In = SC2_IN_L/R */
209 0 : bktr->msp_source_selected = 2;
210 0 : }
211 : }
212 : }
213 :
214 :
215 0 : return( 0 );
216 0 : }
217 :
218 :
219 : /*
220 : *
221 : */
222 : void
223 0 : temp_mute( bktr_ptr_t bktr, int flag )
224 : {
225 : static int muteState = FALSE;
226 :
227 0 : if ( flag == TRUE ) {
228 0 : muteState = bktr->audio_mute_state;
229 0 : set_audio( bktr, AUDIO_MUTE ); /* prevent 'click' */
230 0 : }
231 : else {
232 0 : tsleep( BKTR_SLEEP, PZERO, "tuning", hz/8 );
233 0 : if ( muteState == FALSE )
234 0 : set_audio( bktr, AUDIO_UNMUTE );
235 : }
236 0 : }
237 :
238 : /* address of BTSC/SAP decoder chip */
239 : #define TDA9850_WADDR 0xb6
240 : #define TDA9850_RADDR 0xb7
241 :
242 :
243 : /* registers in the TDA9850 BTSC/dbx chip */
244 : #define CON1ADDR 0x04
245 : #define CON2ADDR 0x05
246 : #define CON3ADDR 0x06
247 : #define CON4ADDR 0x07
248 : #define ALI1ADDR 0x08
249 : #define ALI2ADDR 0x09
250 : #define ALI3ADDR 0x0a
251 :
252 : /*
253 : * initialise the dbx chip
254 : * taken from the Linux bttv driver TDA9850 initialisation code
255 : */
256 : void
257 0 : init_BTSC( bktr_ptr_t bktr )
258 : {
259 0 : i2cWrite(bktr, TDA9850_WADDR, CON1ADDR, 0x08); /* noise threshold st */
260 0 : i2cWrite(bktr, TDA9850_WADDR, CON2ADDR, 0x08); /* noise threshold sap */
261 0 : i2cWrite(bktr, TDA9850_WADDR, CON3ADDR, 0x40); /* stereo mode */
262 0 : i2cWrite(bktr, TDA9850_WADDR, CON4ADDR, 0x07); /* 0 dB input gain? */
263 0 : i2cWrite(bktr, TDA9850_WADDR, ALI1ADDR, 0x10); /* wideband alignment? */
264 0 : i2cWrite(bktr, TDA9850_WADDR, ALI2ADDR, 0x10); /* spectral alignment? */
265 0 : i2cWrite(bktr, TDA9850_WADDR, ALI3ADDR, 0x03);
266 0 : }
267 :
268 : /*
269 : * setup the dbx chip
270 : * XXX FIXME: alot of work to be done here, this merely unmutes it.
271 : */
272 : int
273 0 : set_BTSC( bktr_ptr_t bktr, int control )
274 : {
275 0 : return( i2cWrite( bktr, TDA9850_WADDR, CON3ADDR, control ) );
276 : }
277 :
278 : /*
279 : * CARD_GV_BCTV specific functions.
280 : */
281 :
282 : #define BCTV_AUDIO_MAIN 0x10 /* main audio program */
283 : #define BCTV_AUDIO_SUB 0x20 /* sub audio program */
284 : #define BCTV_AUDIO_BOTH 0x30 /* main(L) + sub(R) program */
285 :
286 : #define BCTV_GPIO_REG0 1
287 : #define BCTV_GPIO_REG1 3
288 :
289 : #define BCTV_GR0_AUDIO_MODE 3
290 : #define BCTV_GR0_AUDIO_MAIN 0 /* main program */
291 : #define BCTV_GR0_AUDIO_SUB 3 /* sub program */
292 : #define BCTV_GR0_AUDIO_BOTH 1 /* main(L) + sub(R) */
293 : #define BCTV_GR0_AUDIO_MUTE 4 /* audio mute */
294 : #define BCTV_GR0_AUDIO_MONO 8 /* force mono */
295 :
296 : void
297 0 : set_bctv_audio( bktr_ptr_t bktr )
298 : {
299 : int data;
300 :
301 0 : switch (bktr->audio_mux_select) {
302 : case 1: /* external */
303 : case 2: /* internal */
304 0 : bctv_gpio_write(bktr, BCTV_GPIO_REG1, 0);
305 0 : break;
306 : default: /* tuner */
307 0 : bctv_gpio_write(bktr, BCTV_GPIO_REG1, 1);
308 0 : break;
309 : }
310 : /* switch (bktr->audio_sap_select) { */
311 : switch (BCTV_AUDIO_BOTH) {
312 : case BCTV_AUDIO_SUB:
313 : data = BCTV_GR0_AUDIO_SUB;
314 : break;
315 : case BCTV_AUDIO_BOTH:
316 : data = BCTV_GR0_AUDIO_BOTH;
317 : break;
318 : case BCTV_AUDIO_MAIN:
319 : default:
320 : data = BCTV_GR0_AUDIO_MAIN;
321 : break;
322 : }
323 0 : if (bktr->audio_mute_state == TRUE)
324 0 : data |= BCTV_GR0_AUDIO_MUTE;
325 :
326 0 : bctv_gpio_write(bktr, BCTV_GPIO_REG0, data);
327 :
328 : return;
329 0 : }
330 :
331 : /* gpio_data bit assignment */
332 : #define BCTV_GPIO_ADDR_MASK 0x000300
333 : #define BCTV_GPIO_WE 0x000400
334 : #define BCTV_GPIO_OE 0x000800
335 : #define BCTV_GPIO_VAL_MASK 0x00f000
336 :
337 : #define BCTV_GPIO_PORT_MASK 3
338 : #define BCTV_GPIO_ADDR_SHIFT 8
339 : #define BCTV_GPIO_VAL_SHIFT 12
340 :
341 : /* gpio_out_en value for read/write */
342 : #define BCTV_GPIO_OUT_RMASK 0x000f00
343 : #define BCTV_GPIO_OUT_WMASK 0x00ff00
344 :
345 : #define BCTV_BITS 100
346 :
347 : void
348 0 : bctv_gpio_write( bktr_ptr_t bktr, int port, int val )
349 : {
350 : u_int data, outbits;
351 :
352 0 : port &= BCTV_GPIO_PORT_MASK;
353 0 : switch (port) {
354 : case 1:
355 : case 3:
356 0 : data = ((val << BCTV_GPIO_VAL_SHIFT) & BCTV_GPIO_VAL_MASK) |
357 0 : ((port << BCTV_GPIO_ADDR_SHIFT) & BCTV_GPIO_ADDR_MASK) |
358 0 : BCTV_GPIO_WE | BCTV_GPIO_OE;
359 : outbits = BCTV_GPIO_OUT_WMASK;
360 : break;
361 : default:
362 0 : return;
363 : }
364 0 : OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
365 0 : OUTL(bktr, BKTR_GPIO_DATA, data);
366 0 : OUTL(bktr, BKTR_GPIO_OUT_EN, outbits);
367 0 : DELAY(BCTV_BITS);
368 0 : OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV_GPIO_WE);
369 0 : DELAY(BCTV_BITS);
370 0 : OUTL(bktr, BKTR_GPIO_DATA, data);
371 0 : DELAY(BCTV_BITS);
372 0 : OUTL(bktr, BKTR_GPIO_DATA, ~0);
373 0 : OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
374 0 : }
375 :
376 : /* Not yet used
377 : int
378 : bctv_gpio_read( bktr_ptr_t bktr, int port )
379 : {
380 : u_int data, outbits, ret;
381 :
382 : port &= BCTV_GPIO_PORT_MASK;
383 : switch (port) {
384 : case 1:
385 : case 3:
386 : data = ((port << BCTV_GPIO_ADDR_SHIFT) & BCTV_GPIO_ADDR_MASK) |
387 : BCTV_GPIO_WE | BCTV_GPIO_OE;
388 : outbits = BCTV_GPIO_OUT_RMASK;
389 : break;
390 : default:
391 : return( -1 );
392 : }
393 : OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
394 : OUTL(bktr, BKTR_GPIO_DATA, data);
395 : OUTL(bktr, BKTR_GPIO_OUT_EN, outbits);
396 : DELAY(BCTV_BITS);
397 : OUTL(bktr, BKTR_GPIO_DATA, data & ~BCTV_GPIO_OE);
398 : DELAY(BCTV_BITS);
399 : ret = INL(bktr, BKTR_GPIO_DATA);
400 : DELAY(BCTV_BITS);
401 : OUTL(bktr, BKTR_GPIO_DATA, data);
402 : DELAY(BCTV_BITS);
403 : OUTL(bktr, BKTR_GPIO_DATA, ~0);
404 : OUTL(bktr, BKTR_GPIO_OUT_EN, 0);
405 : return( (ret & BCTV_GPIO_VAL_MASK) >> BCTV_GPIO_VAL_SHIFT );
406 : }
407 : */
408 :
409 : /*
410 : * setup the MSP34xx Stereo Audio Chip
411 : * This uses the Auto Configuration Option on MSP3410D and MSP3415D chips
412 : * and DBX mode selection for MSP3430G chips.
413 : * For MSP3400C support, the full programming sequence is required and is
414 : * not yet supported.
415 : */
416 :
417 : /* Read the MSP version string */
418 0 : void msp_read_id( bktr_ptr_t bktr ){
419 : int rev1=0, rev2=0;
420 0 : rev1 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001e);
421 0 : rev2 = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x001f);
422 :
423 0 : snprintf(bktr->msp_version_string, sizeof bktr->msp_version_string,
424 0 : "34%02d%c-%c%d", (rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@',
425 0 : rev2&0x1f);
426 :
427 0 : }
428 :
429 :
430 : /* Configure the MSP chip to Auto-detect the audio format.
431 : * For the MSP3430G, we use fast autodetect mode
432 : * For the MSP3410/3415 there are two schemes for this
433 : * a) Fast autodetection - the chip is put into autodetect mode, and the function
434 : * returns immediately. This works in most cases and is the Default Mode.
435 : * b) Slow mode. The function sets the MSP3410/3415 chip, then waits for feedback from
436 : * the chip and re-programs it if needed.
437 : */
438 0 : void msp_autodetect( bktr_ptr_t bktr ) {
439 : int auto_detect, loops;
440 : int stereo;
441 :
442 : /* MSP3430G - countries with mono and DBX stereo */
443 0 : if (strncmp("3430G", bktr->msp_version_string, 5) == 0 ||
444 0 : strncmp("3435G", bktr->msp_version_string, 5) == 0) {
445 :
446 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0030,0x2003);/* Enable Auto format detection */
447 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0020);/* Standard Select Reg. = BTSC-Stereo*/
448 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000E,0x2403);/* darned if I know */
449 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0320);/* Source select = (St or A) */
450 : /* & Ch. Matrix = St */
451 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */
452 0 : }
453 :
454 :
455 : /* MSP3415D SPECIAL CASE Use the Tuner's Mono audio output for the MSP */
456 : /* (for Hauppauge 44xxx card with Tuner Type 0x2a) */
457 0 : else if ( ( (strncmp("3415D", bktr->msp_version_string, 5) == 0)
458 0 : &&(bktr->msp_use_mono_source == 1)
459 : )
460 0 : || (bktr->slow_msp_audio == 2) ){
461 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
462 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */
463 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */
464 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0100); /* DSP In = MONO IN */
465 0 : }
466 :
467 :
468 : /* MSP3410/MSP3415 - countries with mono, stereo using 2 FM channels and NICAM */
469 : /* FAST sound scheme */
470 0 : else if (bktr->slow_msp_audio == 0) {
471 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */
472 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Spkr Source = default(FM/AM) */
473 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */
474 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */
475 0 : }
476 :
477 :
478 : /* MSP3410/MSP3415 - European Countries where the fast MSP3410/3415 programming fails */
479 : /* SLOW sound scheme */
480 0 : else if ( bktr->slow_msp_audio == 1) {
481 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */
482 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */
483 :
484 : /* wait for 0.5s max for terrestrial sound autodetection */
485 : loops = 10;
486 0 : do {
487 0 : DELAY(100000);
488 0 : auto_detect = msp_dpl_read(bktr, bktr->msp_addr, 0x10, 0x007e);
489 0 : loops++;
490 0 : } while (auto_detect > 0xff && loops < 50);
491 : if (bootverbose)printf ("%s: Result of autodetect after %dms: %d\n",
492 : bktr_name(bktr), loops*10, auto_detect);
493 :
494 : /* Now set the audio baseband processing */
495 0 : switch (auto_detect) {
496 : case 0: /* no TV sound standard detected */
497 : break;
498 : case 2: /* M Dual FM */
499 : break;
500 : case 3: /* B/G Dual FM; German stereo */
501 : /* Read the stereo detection value from DSP reg 0x0018 */
502 0 : DELAY(20000);
503 0 : stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018);
504 : if (bootverbose)printf ("%s: Stereo reg 0x18 a: %d\n",
505 : bktr_name(bktr), stereo);
506 0 : DELAY(20000);
507 0 : stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018);
508 : if (bootverbose)printf ("%s: Stereo reg 0x18 b: %d\n",
509 : bktr_name(bktr), stereo);
510 0 : DELAY(20000);
511 0 : stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018);
512 : if (bootverbose)printf ("%s: Stereo reg 0x18 c: %d\n",
513 : bktr_name(bktr), stereo);
514 0 : if (stereo > 0x0100 && stereo < 0x8000) { /* Seems to be stereo */
515 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker set stereo*/
516 : /*
517 : set spatial effect strength to 50% enlargement
518 : set spatial effect mode b, stereo basewidth enlargment only
519 : */
520 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f28);
521 0 : } else if (stereo > 0x8000) { /* bilingual mode */
522 : if (bootverbose) printf ("%s: Bilingual mode detected\n",
523 : bktr_name(bktr));
524 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Loudspeaker */
525 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x0000);/* all spatial effects off */
526 0 : } else { /* must be mono */
527 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0030);/* Loudspeaker */
528 : /*
529 : set spatial effect strength to 50% enlargement
530 : set spatial effect mode a, stereo basewidth enlargment
531 : and pseudo stereo effect with automatic high-pass filter
532 : */
533 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f08);
534 : }
535 : #if 0
536 : /* The reset value for Channel matrix mode is FM/AM and SOUNDA/LEFT */
537 : /* We would like STEREO instead val: 0x0020 */
538 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker */
539 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0009,0x0020);/* Headphone */
540 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000a,0x0020);/* SCART1 */
541 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0041,0x0020);/* SCART2 */
542 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000b,0x0020);/* I2S */
543 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000c,0x0020);/* Quasi-Peak Detector Source */
544 : msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000e,0x0001);
545 : #endif
546 : break;
547 : case 8: /* B/G FM NICAM */
548 0 : msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */
549 0 : break;
550 : case 9: /* L_AM NICAM or D/K*/
551 : case 10: /* i-FM NICAM */
552 : break;
553 : default:
554 : if (bootverbose) printf ("%s: Unknown autodetection result value: %d\n",
555 : bktr_name(bktr), auto_detect);
556 : }
557 :
558 : }
559 :
560 :
561 : /* uncomment the following line to enable the MSP34xx 1KHz Tone Generator */
562 : /* turn your speaker volume down low before trying this */
563 : /* msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0014, 0x7f40); */
564 0 : }
565 :
566 : /* Read the DPL version string */
567 0 : void dpl_read_id( bktr_ptr_t bktr ){
568 : int rev1=0, rev2=0;
569 0 : rev1 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001e);
570 0 : rev2 = msp_dpl_read(bktr, bktr->dpl_addr, 0x12, 0x001f);
571 :
572 0 : snprintf(bktr->dpl_version_string, sizeof bktr->dpl_version_string,
573 0 : "34%02d%c-%c%d", ((rev2>>8)&0xff)-1, (rev1&0xff)+'@',
574 0 : ((rev1>>8)&0xff)+'@', rev2&0x1f);
575 0 : }
576 :
577 : /* Configure the DPL chip to Auto-detect the audio format */
578 0 : void dpl_autodetect( bktr_ptr_t bktr ) {
579 :
580 : /* The following are empiric values tried from the DPL35xx data sheet */
581 0 : msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x000c,0x0320); /* quasi peak detector source dolby
582 : lr 0x03xx; quasi peak detector matrix
583 : stereo 0xXX20 */
584 0 : msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0040,0x0060); /* Surround decoder mode;
585 : ADAPTIVE/3D-PANORAMA, that means two
586 : speakers and no center speaker, all
587 : channels L/R/C/S mixed to L and R */
588 0 : msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0041,0x0620); /* surround source matrix;I2S2/STEREO*/
589 0 : msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0042,0x1F00); /* surround delay 31ms max */
590 0 : msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0043,0x0000); /* automatic surround input balance */
591 0 : msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0044,0x4000); /* surround spatial effect 50%
592 : recommended*/
593 0 : msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0045,0x5400); /* surround panorama effect 66%
594 : recommended with PANORAMA mode
595 : in 0x0040 set to panorama */
596 0 : }
597 :
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