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21#include <linux/io.h>
22#include <asm/dma.h>
23#include <linux/init.h>
24#include <linux/time.h>
25#include <linux/module.h>
26#include <sound/core.h>
27#include <sound/sb.h>
28#include <sound/sb16_csp.h>
29#include <sound/mpu401.h>
30#include <sound/control.h>
31#include <sound/info.h>
32
33MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
34MODULE_DESCRIPTION("Routines for control of 16-bit SoundBlaster cards and clones");
35MODULE_LICENSE("GPL");
36
37#define runtime_format_bits(runtime) \
38 ((unsigned int)pcm_format_to_bits((runtime)->format))
39
40#ifdef CONFIG_SND_SB16_CSP
41static void snd_sb16_csp_playback_prepare(struct snd_sb *chip, struct snd_pcm_runtime *runtime)
42{
43 if (chip->hardware == SB_HW_16CSP) {
44 struct snd_sb_csp *csp = chip->csp;
45
46 if (csp->running & SNDRV_SB_CSP_ST_LOADED) {
47
48 if ((csp->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) &&
49 (runtime_format_bits(runtime) == csp->acc_format)) {
50
51 if (csp->ops.csp_use(csp) == 0) {
52
53 goto __start_CSP;
54 }
55 } else if ((csp->mode & SNDRV_SB_CSP_MODE_QSOUND) && (csp->q_enabled)) {
56
57 if (runtime_format_bits(runtime) & (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
58 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE)) {
59
60 if (csp->ops.csp_use(csp) == 0) {
61
62 goto __start_CSP;
63 }
64 }
65 }
66 } else if (csp->ops.csp_use(csp) == 0) {
67
68 if (csp->ops.csp_autoload(csp, runtime->format, SNDRV_SB_CSP_MODE_DSP_WRITE)) {
69
70 csp->ops.csp_unuse(csp);
71 } else {
72 __start_CSP:
73
74 if (csp->ops.csp_start(csp, (chip->mode & SB_MODE_PLAYBACK_16) ?
75 SNDRV_SB_CSP_SAMPLE_16BIT : SNDRV_SB_CSP_SAMPLE_8BIT,
76 (runtime->channels > 1) ?
77 SNDRV_SB_CSP_STEREO : SNDRV_SB_CSP_MONO)) {
78
79 csp->ops.csp_unuse(csp);
80 } else {
81
82 chip->open = SNDRV_SB_CSP_MODE_DSP_WRITE;
83 }
84 }
85 }
86 }
87}
88
89static void snd_sb16_csp_capture_prepare(struct snd_sb *chip, struct snd_pcm_runtime *runtime)
90{
91 if (chip->hardware == SB_HW_16CSP) {
92 struct snd_sb_csp *csp = chip->csp;
93
94 if (csp->running & SNDRV_SB_CSP_ST_LOADED) {
95
96 if ((csp->mode & SNDRV_SB_CSP_MODE_DSP_READ) &&
97 (runtime_format_bits(runtime) == csp->acc_format)) {
98
99 if (csp->ops.csp_use(csp) == 0) {
100
101 goto __start_CSP;
102 }
103 }
104 } else if (csp->ops.csp_use(csp) == 0) {
105
106 if (csp->ops.csp_autoload(csp, runtime->format, SNDRV_SB_CSP_MODE_DSP_READ)) {
107
108 csp->ops.csp_unuse(csp);
109 } else {
110 __start_CSP:
111
112 if (csp->ops.csp_start(csp, (chip->mode & SB_MODE_CAPTURE_16) ?
113 SNDRV_SB_CSP_SAMPLE_16BIT : SNDRV_SB_CSP_SAMPLE_8BIT,
114 (runtime->channels > 1) ?
115 SNDRV_SB_CSP_STEREO : SNDRV_SB_CSP_MONO)) {
116
117 csp->ops.csp_unuse(csp);
118 } else {
119
120 chip->open = SNDRV_SB_CSP_MODE_DSP_READ;
121 }
122 }
123 }
124 }
125}
126
127static void snd_sb16_csp_update(struct snd_sb *chip)
128{
129 if (chip->hardware == SB_HW_16CSP) {
130 struct snd_sb_csp *csp = chip->csp;
131
132 if (csp->qpos_changed) {
133 spin_lock(&chip->reg_lock);
134 csp->ops.csp_qsound_transfer (csp);
135 spin_unlock(&chip->reg_lock);
136 }
137 }
138}
139
140static void snd_sb16_csp_playback_open(struct snd_sb *chip, struct snd_pcm_runtime *runtime)
141{
142
143 if (chip->hardware == SB_HW_16CSP) {
144 struct snd_sb_csp *csp = chip->csp;
145
146 if (csp->running & SNDRV_SB_CSP_ST_LOADED) {
147
148 if (csp->mode & SNDRV_SB_CSP_MODE_DSP_WRITE) {
149 runtime->hw.formats |= csp->acc_format;
150 }
151 } else {
152
153 runtime->hw.formats |= SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
154 SNDRV_PCM_FMTBIT_IMA_ADPCM;
155 }
156 }
157}
158
159static void snd_sb16_csp_playback_close(struct snd_sb *chip)
160{
161 if ((chip->hardware == SB_HW_16CSP) && (chip->open == SNDRV_SB_CSP_MODE_DSP_WRITE)) {
162 struct snd_sb_csp *csp = chip->csp;
163
164 if (csp->ops.csp_stop(csp) == 0) {
165 csp->ops.csp_unuse(csp);
166 chip->open = 0;
167 }
168 }
169}
170
171static void snd_sb16_csp_capture_open(struct snd_sb *chip, struct snd_pcm_runtime *runtime)
172{
173
174 if (chip->hardware == SB_HW_16CSP) {
175 struct snd_sb_csp *csp = chip->csp;
176
177 if (csp->running & SNDRV_SB_CSP_ST_LOADED) {
178
179 if (csp->mode & SNDRV_SB_CSP_MODE_DSP_READ) {
180 runtime->hw.formats |= csp->acc_format;
181 }
182 } else {
183
184 runtime->hw.formats |= SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
185 SNDRV_PCM_FMTBIT_IMA_ADPCM;
186 }
187 }
188}
189
190static void snd_sb16_csp_capture_close(struct snd_sb *chip)
191{
192 if ((chip->hardware == SB_HW_16CSP) && (chip->open == SNDRV_SB_CSP_MODE_DSP_READ)) {
193 struct snd_sb_csp *csp = chip->csp;
194
195 if (csp->ops.csp_stop(csp) == 0) {
196 csp->ops.csp_unuse(csp);
197 chip->open = 0;
198 }
199 }
200}
201#else
202#define snd_sb16_csp_playback_prepare(chip, runtime)
203#define snd_sb16_csp_capture_prepare(chip, runtime)
204#define snd_sb16_csp_update(chip)
205#define snd_sb16_csp_playback_open(chip, runtime)
206#define snd_sb16_csp_playback_close(chip)
207#define snd_sb16_csp_capture_open(chip, runtime)
208#define snd_sb16_csp_capture_close(chip)
209#endif
210
211
212static void snd_sb16_setup_rate(struct snd_sb *chip,
213 unsigned short rate,
214 int channel)
215{
216 unsigned long flags;
217
218 spin_lock_irqsave(&chip->reg_lock, flags);
219 if (chip->mode & (channel == SNDRV_PCM_STREAM_PLAYBACK ? SB_MODE_PLAYBACK_16 : SB_MODE_CAPTURE_16))
220 snd_sb_ack_16bit(chip);
221 else
222 snd_sb_ack_8bit(chip);
223 if (!(chip->mode & SB_RATE_LOCK)) {
224 chip->locked_rate = rate;
225 snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_IN);
226 snd_sbdsp_command(chip, rate >> 8);
227 snd_sbdsp_command(chip, rate & 0xff);
228 snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT);
229 snd_sbdsp_command(chip, rate >> 8);
230 snd_sbdsp_command(chip, rate & 0xff);
231 }
232 spin_unlock_irqrestore(&chip->reg_lock, flags);
233}
234
235static int snd_sb16_playback_prepare(struct snd_pcm_substream *substream)
236{
237 unsigned long flags;
238 struct snd_sb *chip = snd_pcm_substream_chip(substream);
239 struct snd_pcm_runtime *runtime = substream->runtime;
240 unsigned char format;
241 unsigned int size, count, dma;
242
243 snd_sb16_csp_playback_prepare(chip, runtime);
244 if (snd_pcm_format_unsigned(runtime->format) > 0) {
245 format = runtime->channels > 1 ? SB_DSP4_MODE_UNS_STEREO : SB_DSP4_MODE_UNS_MONO;
246 } else {
247 format = runtime->channels > 1 ? SB_DSP4_MODE_SIGN_STEREO : SB_DSP4_MODE_SIGN_MONO;
248 }
249
250 snd_sb16_setup_rate(chip, runtime->rate, SNDRV_PCM_STREAM_PLAYBACK);
251 size = chip->p_dma_size = snd_pcm_lib_buffer_bytes(substream);
252 dma = (chip->mode & SB_MODE_PLAYBACK_8) ? chip->dma8 : chip->dma16;
253 snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
254
255 count = snd_pcm_lib_period_bytes(substream);
256 spin_lock_irqsave(&chip->reg_lock, flags);
257 if (chip->mode & SB_MODE_PLAYBACK_16) {
258 count >>= 1;
259 count--;
260 snd_sbdsp_command(chip, SB_DSP4_OUT16_AI);
261 snd_sbdsp_command(chip, format);
262 snd_sbdsp_command(chip, count & 0xff);
263 snd_sbdsp_command(chip, count >> 8);
264 snd_sbdsp_command(chip, SB_DSP_DMA16_OFF);
265 } else {
266 count--;
267 snd_sbdsp_command(chip, SB_DSP4_OUT8_AI);
268 snd_sbdsp_command(chip, format);
269 snd_sbdsp_command(chip, count & 0xff);
270 snd_sbdsp_command(chip, count >> 8);
271 snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
272 }
273 spin_unlock_irqrestore(&chip->reg_lock, flags);
274 return 0;
275}
276
277static int snd_sb16_playback_trigger(struct snd_pcm_substream *substream,
278 int cmd)
279{
280 struct snd_sb *chip = snd_pcm_substream_chip(substream);
281 int result = 0;
282
283 spin_lock(&chip->reg_lock);
284 switch (cmd) {
285 case SNDRV_PCM_TRIGGER_START:
286 case SNDRV_PCM_TRIGGER_RESUME:
287 chip->mode |= SB_RATE_LOCK_PLAYBACK;
288 snd_sbdsp_command(chip, chip->mode & SB_MODE_PLAYBACK_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);
289 break;
290 case SNDRV_PCM_TRIGGER_STOP:
291 case SNDRV_PCM_TRIGGER_SUSPEND:
292 snd_sbdsp_command(chip, chip->mode & SB_MODE_PLAYBACK_16 ? SB_DSP_DMA16_OFF : SB_DSP_DMA8_OFF);
293
294 if (chip->mode & SB_RATE_LOCK_CAPTURE)
295 snd_sbdsp_command(chip, chip->mode & SB_MODE_CAPTURE_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);
296 chip->mode &= ~SB_RATE_LOCK_PLAYBACK;
297 break;
298 default:
299 result = -EINVAL;
300 }
301 spin_unlock(&chip->reg_lock);
302 return result;
303}
304
305static int snd_sb16_capture_prepare(struct snd_pcm_substream *substream)
306{
307 unsigned long flags;
308 struct snd_sb *chip = snd_pcm_substream_chip(substream);
309 struct snd_pcm_runtime *runtime = substream->runtime;
310 unsigned char format;
311 unsigned int size, count, dma;
312
313 snd_sb16_csp_capture_prepare(chip, runtime);
314 if (snd_pcm_format_unsigned(runtime->format) > 0) {
315 format = runtime->channels > 1 ? SB_DSP4_MODE_UNS_STEREO : SB_DSP4_MODE_UNS_MONO;
316 } else {
317 format = runtime->channels > 1 ? SB_DSP4_MODE_SIGN_STEREO : SB_DSP4_MODE_SIGN_MONO;
318 }
319 snd_sb16_setup_rate(chip, runtime->rate, SNDRV_PCM_STREAM_CAPTURE);
320 size = chip->c_dma_size = snd_pcm_lib_buffer_bytes(substream);
321 dma = (chip->mode & SB_MODE_CAPTURE_8) ? chip->dma8 : chip->dma16;
322 snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
323
324 count = snd_pcm_lib_period_bytes(substream);
325 spin_lock_irqsave(&chip->reg_lock, flags);
326 if (chip->mode & SB_MODE_CAPTURE_16) {
327 count >>= 1;
328 count--;
329 snd_sbdsp_command(chip, SB_DSP4_IN16_AI);
330 snd_sbdsp_command(chip, format);
331 snd_sbdsp_command(chip, count & 0xff);
332 snd_sbdsp_command(chip, count >> 8);
333 snd_sbdsp_command(chip, SB_DSP_DMA16_OFF);
334 } else {
335 count--;
336 snd_sbdsp_command(chip, SB_DSP4_IN8_AI);
337 snd_sbdsp_command(chip, format);
338 snd_sbdsp_command(chip, count & 0xff);
339 snd_sbdsp_command(chip, count >> 8);
340 snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
341 }
342 spin_unlock_irqrestore(&chip->reg_lock, flags);
343 return 0;
344}
345
346static int snd_sb16_capture_trigger(struct snd_pcm_substream *substream,
347 int cmd)
348{
349 struct snd_sb *chip = snd_pcm_substream_chip(substream);
350 int result = 0;
351
352 spin_lock(&chip->reg_lock);
353 switch (cmd) {
354 case SNDRV_PCM_TRIGGER_START:
355 case SNDRV_PCM_TRIGGER_RESUME:
356 chip->mode |= SB_RATE_LOCK_CAPTURE;
357 snd_sbdsp_command(chip, chip->mode & SB_MODE_CAPTURE_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);
358 break;
359 case SNDRV_PCM_TRIGGER_STOP:
360 case SNDRV_PCM_TRIGGER_SUSPEND:
361 snd_sbdsp_command(chip, chip->mode & SB_MODE_CAPTURE_16 ? SB_DSP_DMA16_OFF : SB_DSP_DMA8_OFF);
362
363 if (chip->mode & SB_RATE_LOCK_PLAYBACK)
364 snd_sbdsp_command(chip, chip->mode & SB_MODE_PLAYBACK_16 ? SB_DSP_DMA16_ON : SB_DSP_DMA8_ON);
365 chip->mode &= ~SB_RATE_LOCK_CAPTURE;
366 break;
367 default:
368 result = -EINVAL;
369 }
370 spin_unlock(&chip->reg_lock);
371 return result;
372}
373
374irqreturn_t snd_sb16dsp_interrupt(int irq, void *dev_id)
375{
376 struct snd_sb *chip = dev_id;
377 unsigned char status;
378 int ok;
379
380 spin_lock(&chip->mixer_lock);
381 status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
382 spin_unlock(&chip->mixer_lock);
383 if ((status & SB_IRQTYPE_MPUIN) && chip->rmidi_callback)
384 chip->rmidi_callback(irq, chip->rmidi->private_data);
385 if (status & SB_IRQTYPE_8BIT) {
386 ok = 0;
387 if (chip->mode & SB_MODE_PLAYBACK_8) {
388 snd_pcm_period_elapsed(chip->playback_substream);
389 snd_sb16_csp_update(chip);
390 ok++;
391 }
392 if (chip->mode & SB_MODE_CAPTURE_8) {
393 snd_pcm_period_elapsed(chip->capture_substream);
394 ok++;
395 }
396 spin_lock(&chip->reg_lock);
397 if (!ok)
398 snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
399 snd_sb_ack_8bit(chip);
400 spin_unlock(&chip->reg_lock);
401 }
402 if (status & SB_IRQTYPE_16BIT) {
403 ok = 0;
404 if (chip->mode & SB_MODE_PLAYBACK_16) {
405 snd_pcm_period_elapsed(chip->playback_substream);
406 snd_sb16_csp_update(chip);
407 ok++;
408 }
409 if (chip->mode & SB_MODE_CAPTURE_16) {
410 snd_pcm_period_elapsed(chip->capture_substream);
411 ok++;
412 }
413 spin_lock(&chip->reg_lock);
414 if (!ok)
415 snd_sbdsp_command(chip, SB_DSP_DMA16_OFF);
416 snd_sb_ack_16bit(chip);
417 spin_unlock(&chip->reg_lock);
418 }
419 return IRQ_HANDLED;
420}
421
422
423
424
425
426static snd_pcm_uframes_t snd_sb16_playback_pointer(struct snd_pcm_substream *substream)
427{
428 struct snd_sb *chip = snd_pcm_substream_chip(substream);
429 unsigned int dma;
430 size_t ptr;
431
432 dma = (chip->mode & SB_MODE_PLAYBACK_8) ? chip->dma8 : chip->dma16;
433 ptr = snd_dma_pointer(dma, chip->p_dma_size);
434 return bytes_to_frames(substream->runtime, ptr);
435}
436
437static snd_pcm_uframes_t snd_sb16_capture_pointer(struct snd_pcm_substream *substream)
438{
439 struct snd_sb *chip = snd_pcm_substream_chip(substream);
440 unsigned int dma;
441 size_t ptr;
442
443 dma = (chip->mode & SB_MODE_CAPTURE_8) ? chip->dma8 : chip->dma16;
444 ptr = snd_dma_pointer(dma, chip->c_dma_size);
445 return bytes_to_frames(substream->runtime, ptr);
446}
447
448
449
450
451
452static const struct snd_pcm_hardware snd_sb16_playback =
453{
454 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
455 SNDRV_PCM_INFO_MMAP_VALID),
456 .formats = 0,
457 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100,
458 .rate_min = 4000,
459 .rate_max = 44100,
460 .channels_min = 1,
461 .channels_max = 2,
462 .buffer_bytes_max = (128*1024),
463 .period_bytes_min = 64,
464 .period_bytes_max = (128*1024),
465 .periods_min = 1,
466 .periods_max = 1024,
467 .fifo_size = 0,
468};
469
470static const struct snd_pcm_hardware snd_sb16_capture =
471{
472 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
473 SNDRV_PCM_INFO_MMAP_VALID),
474 .formats = 0,
475 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100,
476 .rate_min = 4000,
477 .rate_max = 44100,
478 .channels_min = 1,
479 .channels_max = 2,
480 .buffer_bytes_max = (128*1024),
481 .period_bytes_min = 64,
482 .period_bytes_max = (128*1024),
483 .periods_min = 1,
484 .periods_max = 1024,
485 .fifo_size = 0,
486};
487
488
489
490
491
492static int snd_sb16_playback_open(struct snd_pcm_substream *substream)
493{
494 unsigned long flags;
495 struct snd_sb *chip = snd_pcm_substream_chip(substream);
496 struct snd_pcm_runtime *runtime = substream->runtime;
497
498 spin_lock_irqsave(&chip->open_lock, flags);
499 if (chip->mode & SB_MODE_PLAYBACK) {
500 spin_unlock_irqrestore(&chip->open_lock, flags);
501 return -EAGAIN;
502 }
503 runtime->hw = snd_sb16_playback;
504
505
506 if (chip->force_mode16 & SB_MODE_CAPTURE_16)
507 goto __skip_16bit;
508
509 if (chip->dma16 >= 0 && !(chip->mode & SB_MODE_CAPTURE_16)) {
510 chip->mode |= SB_MODE_PLAYBACK_16;
511 runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE;
512
513 if (chip->dma16 <= 3) {
514 runtime->hw.buffer_bytes_max =
515 runtime->hw.period_bytes_max = 64 * 1024;
516 } else {
517 snd_sb16_csp_playback_open(chip, runtime);
518 }
519 goto __open_ok;
520 }
521
522 __skip_16bit:
523 if (chip->dma8 >= 0 && !(chip->mode & SB_MODE_CAPTURE_8)) {
524 chip->mode |= SB_MODE_PLAYBACK_8;
525
526 if (chip->dma16 < 0) {
527 runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE;
528 chip->mode |= SB_MODE_PLAYBACK_16;
529 } else {
530 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8;
531 }
532 runtime->hw.buffer_bytes_max =
533 runtime->hw.period_bytes_max = 64 * 1024;
534 goto __open_ok;
535 }
536 spin_unlock_irqrestore(&chip->open_lock, flags);
537 return -EAGAIN;
538
539 __open_ok:
540 if (chip->hardware == SB_HW_ALS100)
541 runtime->hw.rate_max = 48000;
542 if (chip->hardware == SB_HW_CS5530) {
543 runtime->hw.buffer_bytes_max = 32 * 1024;
544 runtime->hw.periods_min = 2;
545 runtime->hw.rate_min = 44100;
546 }
547 if (chip->mode & SB_RATE_LOCK)
548 runtime->hw.rate_min = runtime->hw.rate_max = chip->locked_rate;
549 chip->playback_substream = substream;
550 spin_unlock_irqrestore(&chip->open_lock, flags);
551 return 0;
552}
553
554static int snd_sb16_playback_close(struct snd_pcm_substream *substream)
555{
556 unsigned long flags;
557 struct snd_sb *chip = snd_pcm_substream_chip(substream);
558
559 snd_sb16_csp_playback_close(chip);
560 spin_lock_irqsave(&chip->open_lock, flags);
561 chip->playback_substream = NULL;
562 chip->mode &= ~SB_MODE_PLAYBACK;
563 spin_unlock_irqrestore(&chip->open_lock, flags);
564 return 0;
565}
566
567static int snd_sb16_capture_open(struct snd_pcm_substream *substream)
568{
569 unsigned long flags;
570 struct snd_sb *chip = snd_pcm_substream_chip(substream);
571 struct snd_pcm_runtime *runtime = substream->runtime;
572
573 spin_lock_irqsave(&chip->open_lock, flags);
574 if (chip->mode & SB_MODE_CAPTURE) {
575 spin_unlock_irqrestore(&chip->open_lock, flags);
576 return -EAGAIN;
577 }
578 runtime->hw = snd_sb16_capture;
579
580
581 if (chip->force_mode16 & SB_MODE_PLAYBACK_16)
582 goto __skip_16bit;
583
584 if (chip->dma16 >= 0 && !(chip->mode & SB_MODE_PLAYBACK_16)) {
585 chip->mode |= SB_MODE_CAPTURE_16;
586 runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE;
587
588 if (chip->dma16 <= 3) {
589 runtime->hw.buffer_bytes_max =
590 runtime->hw.period_bytes_max = 64 * 1024;
591 } else {
592 snd_sb16_csp_capture_open(chip, runtime);
593 }
594 goto __open_ok;
595 }
596
597 __skip_16bit:
598 if (chip->dma8 >= 0 && !(chip->mode & SB_MODE_PLAYBACK_8)) {
599 chip->mode |= SB_MODE_CAPTURE_8;
600
601 if (chip->dma16 < 0) {
602 runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE;
603 chip->mode |= SB_MODE_CAPTURE_16;
604 } else {
605 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8;
606 }
607 runtime->hw.buffer_bytes_max =
608 runtime->hw.period_bytes_max = 64 * 1024;
609 goto __open_ok;
610 }
611 spin_unlock_irqrestore(&chip->open_lock, flags);
612 return -EAGAIN;
613
614 __open_ok:
615 if (chip->hardware == SB_HW_ALS100)
616 runtime->hw.rate_max = 48000;
617 if (chip->hardware == SB_HW_CS5530) {
618 runtime->hw.buffer_bytes_max = 32 * 1024;
619 runtime->hw.periods_min = 2;
620 runtime->hw.rate_min = 44100;
621 }
622 if (chip->mode & SB_RATE_LOCK)
623 runtime->hw.rate_min = runtime->hw.rate_max = chip->locked_rate;
624 chip->capture_substream = substream;
625 spin_unlock_irqrestore(&chip->open_lock, flags);
626 return 0;
627}
628
629static int snd_sb16_capture_close(struct snd_pcm_substream *substream)
630{
631 unsigned long flags;
632 struct snd_sb *chip = snd_pcm_substream_chip(substream);
633
634 snd_sb16_csp_capture_close(chip);
635 spin_lock_irqsave(&chip->open_lock, flags);
636 chip->capture_substream = NULL;
637 chip->mode &= ~SB_MODE_CAPTURE;
638 spin_unlock_irqrestore(&chip->open_lock, flags);
639 return 0;
640}
641
642
643
644
645
646static int snd_sb16_set_dma_mode(struct snd_sb *chip, int what)
647{
648 if (chip->dma8 < 0 || chip->dma16 < 0) {
649 if (snd_BUG_ON(what))
650 return -EINVAL;
651 return 0;
652 }
653 if (what == 0) {
654 chip->force_mode16 = 0;
655 } else if (what == 1) {
656 chip->force_mode16 = SB_MODE_PLAYBACK_16;
657 } else if (what == 2) {
658 chip->force_mode16 = SB_MODE_CAPTURE_16;
659 } else {
660 return -EINVAL;
661 }
662 return 0;
663}
664
665static int snd_sb16_get_dma_mode(struct snd_sb *chip)
666{
667 if (chip->dma8 < 0 || chip->dma16 < 0)
668 return 0;
669 switch (chip->force_mode16) {
670 case SB_MODE_PLAYBACK_16:
671 return 1;
672 case SB_MODE_CAPTURE_16:
673 return 2;
674 default:
675 return 0;
676 }
677}
678
679static int snd_sb16_dma_control_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
680{
681 static const char * const texts[3] = {
682 "Auto", "Playback", "Capture"
683 };
684
685 return snd_ctl_enum_info(uinfo, 1, 3, texts);
686}
687
688static int snd_sb16_dma_control_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
689{
690 struct snd_sb *chip = snd_kcontrol_chip(kcontrol);
691 unsigned long flags;
692
693 spin_lock_irqsave(&chip->reg_lock, flags);
694 ucontrol->value.enumerated.item[0] = snd_sb16_get_dma_mode(chip);
695 spin_unlock_irqrestore(&chip->reg_lock, flags);
696 return 0;
697}
698
699static int snd_sb16_dma_control_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
700{
701 struct snd_sb *chip = snd_kcontrol_chip(kcontrol);
702 unsigned long flags;
703 unsigned char nval, oval;
704 int change;
705
706 if ((nval = ucontrol->value.enumerated.item[0]) > 2)
707 return -EINVAL;
708 spin_lock_irqsave(&chip->reg_lock, flags);
709 oval = snd_sb16_get_dma_mode(chip);
710 change = nval != oval;
711 snd_sb16_set_dma_mode(chip, nval);
712 spin_unlock_irqrestore(&chip->reg_lock, flags);
713 return change;
714}
715
716static const struct snd_kcontrol_new snd_sb16_dma_control = {
717 .iface = SNDRV_CTL_ELEM_IFACE_CARD,
718 .name = "16-bit DMA Allocation",
719 .info = snd_sb16_dma_control_info,
720 .get = snd_sb16_dma_control_get,
721 .put = snd_sb16_dma_control_put
722};
723
724
725
726
727
728int snd_sb16dsp_configure(struct snd_sb * chip)
729{
730 unsigned long flags;
731 unsigned char irqreg = 0, dmareg = 0, mpureg;
732 unsigned char realirq, realdma, realmpureg;
733
734
735
736 spin_lock_irqsave(&chip->mixer_lock, flags);
737 mpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP) & ~0x06;
738 spin_unlock_irqrestore(&chip->mixer_lock, flags);
739 switch (chip->irq) {
740 case 2:
741 case 9:
742 irqreg |= SB_IRQSETUP_IRQ9;
743 break;
744 case 5:
745 irqreg |= SB_IRQSETUP_IRQ5;
746 break;
747 case 7:
748 irqreg |= SB_IRQSETUP_IRQ7;
749 break;
750 case 10:
751 irqreg |= SB_IRQSETUP_IRQ10;
752 break;
753 default:
754 return -EINVAL;
755 }
756 if (chip->dma8 >= 0) {
757 switch (chip->dma8) {
758 case 0:
759 dmareg |= SB_DMASETUP_DMA0;
760 break;
761 case 1:
762 dmareg |= SB_DMASETUP_DMA1;
763 break;
764 case 3:
765 dmareg |= SB_DMASETUP_DMA3;
766 break;
767 default:
768 return -EINVAL;
769 }
770 }
771 if (chip->dma16 >= 0 && chip->dma16 != chip->dma8) {
772 switch (chip->dma16) {
773 case 5:
774 dmareg |= SB_DMASETUP_DMA5;
775 break;
776 case 6:
777 dmareg |= SB_DMASETUP_DMA6;
778 break;
779 case 7:
780 dmareg |= SB_DMASETUP_DMA7;
781 break;
782 default:
783 return -EINVAL;
784 }
785 }
786 switch (chip->mpu_port) {
787 case 0x300:
788 mpureg |= 0x04;
789 break;
790 case 0x330:
791 mpureg |= 0x00;
792 break;
793 default:
794 mpureg |= 0x02;
795 }
796 spin_lock_irqsave(&chip->mixer_lock, flags);
797
798 snd_sbmixer_write(chip, SB_DSP4_IRQSETUP, irqreg);
799 realirq = snd_sbmixer_read(chip, SB_DSP4_IRQSETUP);
800
801 snd_sbmixer_write(chip, SB_DSP4_DMASETUP, dmareg);
802 realdma = snd_sbmixer_read(chip, SB_DSP4_DMASETUP);
803
804 snd_sbmixer_write(chip, SB_DSP4_MPUSETUP, mpureg);
805 realmpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP);
806
807 spin_unlock_irqrestore(&chip->mixer_lock, flags);
808 if ((~realirq) & irqreg || (~realdma) & dmareg) {
809 snd_printk(KERN_ERR "SB16 [0x%lx]: unable to set DMA & IRQ (PnP device?)\n", chip->port);
810 snd_printk(KERN_ERR "SB16 [0x%lx]: wanted: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n", chip->port, realirq, realdma, realmpureg);
811 snd_printk(KERN_ERR "SB16 [0x%lx]: got: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n", chip->port, irqreg, dmareg, mpureg);
812 return -ENODEV;
813 }
814 return 0;
815}
816
817static const struct snd_pcm_ops snd_sb16_playback_ops = {
818 .open = snd_sb16_playback_open,
819 .close = snd_sb16_playback_close,
820 .prepare = snd_sb16_playback_prepare,
821 .trigger = snd_sb16_playback_trigger,
822 .pointer = snd_sb16_playback_pointer,
823};
824
825static const struct snd_pcm_ops snd_sb16_capture_ops = {
826 .open = snd_sb16_capture_open,
827 .close = snd_sb16_capture_close,
828 .prepare = snd_sb16_capture_prepare,
829 .trigger = snd_sb16_capture_trigger,
830 .pointer = snd_sb16_capture_pointer,
831};
832
833int snd_sb16dsp_pcm(struct snd_sb *chip, int device)
834{
835 struct snd_card *card = chip->card;
836 struct snd_pcm *pcm;
837 int err;
838
839 if ((err = snd_pcm_new(card, "SB16 DSP", device, 1, 1, &pcm)) < 0)
840 return err;
841 sprintf(pcm->name, "DSP v%i.%i", chip->version >> 8, chip->version & 0xff);
842 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
843 pcm->private_data = chip;
844 chip->pcm = pcm;
845
846 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_sb16_playback_ops);
847 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_sb16_capture_ops);
848
849 if (chip->dma16 >= 0 && chip->dma8 != chip->dma16) {
850 err = snd_ctl_add(card, snd_ctl_new1(
851 &snd_sb16_dma_control, chip));
852 if (err)
853 return err;
854 } else {
855 pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
856 }
857
858 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
859 card->dev, 64*1024, 128*1024);
860 return 0;
861}
862
863const struct snd_pcm_ops *snd_sb16dsp_get_pcm_ops(int direction)
864{
865 return direction == SNDRV_PCM_STREAM_PLAYBACK ?
866 &snd_sb16_playback_ops : &snd_sb16_capture_ops;
867}
868
869EXPORT_SYMBOL(snd_sb16dsp_pcm);
870EXPORT_SYMBOL(snd_sb16dsp_get_pcm_ops);
871EXPORT_SYMBOL(snd_sb16dsp_configure);
872EXPORT_SYMBOL(snd_sb16dsp_interrupt);
873
