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28#include <asm/dma.h>
29#include <linux/slab.h>
30#include <linux/sched/signal.h>
31
32#include <sound/core.h>
33#include <sound/control.h>
34#include <sound/gus.h>
35#include <sound/pcm_params.h>
36#include "gus_tables.h"
37
38
39
40#define SNDRV_GF1_PCM_RATE 48000
41
42#define SNDRV_GF1_PCM_PFLG_NONE 0
43#define SNDRV_GF1_PCM_PFLG_ACTIVE (1<<0)
44#define SNDRV_GF1_PCM_PFLG_NEUTRAL (2<<0)
45
46struct gus_pcm_private {
47 struct snd_gus_card * gus;
48 struct snd_pcm_substream *substream;
49 spinlock_t lock;
50 unsigned int voices;
51 struct snd_gus_voice *pvoices[2];
52 unsigned int memory;
53 unsigned short flags;
54 unsigned char voice_ctrl, ramp_ctrl;
55 unsigned int bpos;
56 unsigned int blocks;
57 unsigned int block_size;
58 unsigned int dma_size;
59 wait_queue_head_t sleep;
60 atomic_t dma_count;
61 int final_volume;
62};
63
64static void snd_gf1_pcm_block_change_ack(struct snd_gus_card * gus, void *private_data)
65{
66 struct gus_pcm_private *pcmp = private_data;
67
68 if (pcmp) {
69 atomic_dec(&pcmp->dma_count);
70 wake_up(&pcmp->sleep);
71 }
72}
73
74static int snd_gf1_pcm_block_change(struct snd_pcm_substream *substream,
75 unsigned int offset,
76 unsigned int addr,
77 unsigned int count)
78{
79 struct snd_gf1_dma_block block;
80 struct snd_pcm_runtime *runtime = substream->runtime;
81 struct gus_pcm_private *pcmp = runtime->private_data;
82
83 count += offset & 31;
84 offset &= ~31;
85
86
87
88
89 memset(&block, 0, sizeof(block));
90 block.cmd = SNDRV_GF1_DMA_IRQ;
91 if (snd_pcm_format_unsigned(runtime->format))
92 block.cmd |= SNDRV_GF1_DMA_UNSIGNED;
93 if (snd_pcm_format_width(runtime->format) == 16)
94 block.cmd |= SNDRV_GF1_DMA_16BIT;
95 block.addr = addr & ~31;
96 block.buffer = runtime->dma_area + offset;
97 block.buf_addr = runtime->dma_addr + offset;
98 block.count = count;
99 block.private_data = pcmp;
100 block.ack = snd_gf1_pcm_block_change_ack;
101 if (!snd_gf1_dma_transfer_block(pcmp->gus, &block, 0, 0))
102 atomic_inc(&pcmp->dma_count);
103 return 0;
104}
105
106static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
107{
108 struct snd_pcm_runtime *runtime = substream->runtime;
109 struct gus_pcm_private *pcmp = runtime->private_data;
110 struct snd_gus_card * gus = pcmp->gus;
111 unsigned long flags;
112 unsigned char voice_ctrl, ramp_ctrl;
113 unsigned short rate;
114 unsigned int curr, begin, end;
115 unsigned short vol;
116 unsigned char pan;
117 unsigned int voice;
118
119 spin_lock_irqsave(&pcmp->lock, flags);
120 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
121 spin_unlock_irqrestore(&pcmp->lock, flags);
122 return;
123 }
124 pcmp->flags |= SNDRV_GF1_PCM_PFLG_ACTIVE;
125 pcmp->final_volume = 0;
126 spin_unlock_irqrestore(&pcmp->lock, flags);
127 rate = snd_gf1_translate_freq(gus, runtime->rate << 4);
128
129 voice_ctrl = snd_pcm_format_width(runtime->format) == 16 ? 0x24 : 0x20;
130
131 ramp_ctrl = 0x24;
132 if (pcmp->blocks == 1) {
133 voice_ctrl |= 0x08;
134 ramp_ctrl &= ~0x04;
135 }
136 for (voice = 0; voice < pcmp->voices; voice++) {
137 begin = pcmp->memory + voice * (pcmp->dma_size / runtime->channels);
138 curr = begin + (pcmp->bpos * pcmp->block_size) / runtime->channels;
139 end = curr + (pcmp->block_size / runtime->channels);
140 end -= snd_pcm_format_width(runtime->format) == 16 ? 2 : 1;
141
142
143
144
145
146 pan = runtime->channels == 2 ? (!voice ? 1 : 14) : 8;
147 vol = !voice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
148 spin_lock_irqsave(&gus->reg_lock, flags);
149 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
150 snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, pan);
151 snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, rate);
152 snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, begin << 4, voice_ctrl & 4);
153 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
154 snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, curr << 4, voice_ctrl & 4);
155 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME << 4);
156 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0x2f);
157 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET);
158 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, vol >> 8);
159 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
160 if (!gus->gf1.enh_mode) {
161 snd_gf1_delay(gus);
162 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
163 }
164 spin_unlock_irqrestore(&gus->reg_lock, flags);
165 }
166 spin_lock_irqsave(&gus->reg_lock, flags);
167 for (voice = 0; voice < pcmp->voices; voice++) {
168 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
169 if (gus->gf1.enh_mode)
170 snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, 0x00);
171 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
172 voice_ctrl &= ~0x20;
173 }
174 voice_ctrl |= 0x20;
175 if (!gus->gf1.enh_mode) {
176 snd_gf1_delay(gus);
177 for (voice = 0; voice < pcmp->voices; voice++) {
178 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
179 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
180 voice_ctrl &= ~0x20;
181 }
182 }
183 spin_unlock_irqrestore(&gus->reg_lock, flags);
184}
185
186static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus,
187 struct snd_gus_voice *pvoice)
188{
189 struct gus_pcm_private * pcmp;
190 struct snd_pcm_runtime *runtime;
191 unsigned char voice_ctrl, ramp_ctrl;
192 unsigned int idx;
193 unsigned int end, step;
194
195 if (!pvoice->private_data) {
196 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
197 snd_gf1_smart_stop_voice(gus, pvoice->number);
198 return;
199 }
200 pcmp = pvoice->private_data;
201 if (pcmp == NULL) {
202 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
203 snd_gf1_smart_stop_voice(gus, pvoice->number);
204 return;
205 }
206 gus = pcmp->gus;
207 runtime = pcmp->substream->runtime;
208
209 spin_lock(&gus->reg_lock);
210 snd_gf1_select_voice(gus, pvoice->number);
211 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b;
212 ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03;
213#if 0
214 snd_gf1_select_voice(gus, pvoice->number);
215 printk(KERN_DEBUG "position = 0x%x\n",
216 (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
217 snd_gf1_select_voice(gus, pcmp->pvoices[1]->number);
218 printk(KERN_DEBUG "position = 0x%x\n",
219 (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
220 snd_gf1_select_voice(gus, pvoice->number);
221#endif
222 pcmp->bpos++;
223 pcmp->bpos %= pcmp->blocks;
224 if (pcmp->bpos + 1 >= pcmp->blocks) {
225 voice_ctrl |= 0x08;
226 } else {
227 ramp_ctrl |= 0x04;
228 }
229 end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels);
230 end -= voice_ctrl & 4 ? 2 : 1;
231 step = pcmp->dma_size / runtime->channels;
232 voice_ctrl |= 0x20;
233 if (!pcmp->final_volume) {
234 ramp_ctrl |= 0x20;
235 ramp_ctrl &= ~0x03;
236 }
237 for (idx = 0; idx < pcmp->voices; idx++, end += step) {
238 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
239 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
240 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
241 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
242 voice_ctrl &= ~0x20;
243 }
244 if (!gus->gf1.enh_mode) {
245 snd_gf1_delay(gus);
246 voice_ctrl |= 0x20;
247 for (idx = 0; idx < pcmp->voices; idx++) {
248 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
249 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
250 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
251 voice_ctrl &= ~0x20;
252 }
253 }
254 spin_unlock(&gus->reg_lock);
255
256 snd_pcm_period_elapsed(pcmp->substream);
257#if 0
258 if ((runtime->flags & SNDRV_PCM_FLG_MMAP) &&
259 *runtime->state == SNDRV_PCM_STATE_RUNNING) {
260 end = pcmp->bpos * pcmp->block_size;
261 if (runtime->channels > 1) {
262 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + (end / 2), pcmp->block_size / 2);
263 snd_gf1_pcm_block_change(pcmp->substream, end + (pcmp->block_size / 2), pcmp->memory + (pcmp->dma_size / 2) + (end / 2), pcmp->block_size / 2);
264 } else {
265 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size);
266 }
267 }
268#endif
269}
270
271static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus,
272 struct snd_gus_voice * pvoice)
273{
274 unsigned short vol;
275 int cvoice;
276 struct gus_pcm_private *pcmp = pvoice->private_data;
277
278
279 spin_lock(&gus->reg_lock);
280 snd_gf1_select_voice(gus, pvoice->number);
281 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
282 spin_unlock(&gus->reg_lock);
283 if (pcmp == NULL)
284 return;
285
286 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
287 return;
288
289 cvoice = pcmp->pvoices[0] == pvoice ? 0 : 1;
290 if (pcmp->substream == NULL)
291 return;
292 vol = !cvoice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
293 spin_lock(&gus->reg_lock);
294 snd_gf1_select_voice(gus, pvoice->number);
295 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
296 pcmp->final_volume = 1;
297 spin_unlock(&gus->reg_lock);
298}
299
300static void snd_gf1_pcm_volume_change(struct snd_gus_card * gus)
301{
302}
303
304static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf,
305 unsigned int pos, unsigned int count,
306 int w16, int invert)
307{
308 unsigned int len;
309 unsigned long flags;
310
311
312
313
314
315
316 while (count > 0) {
317 len = count;
318 if (len > 512)
319 len = 512;
320 count -= len;
321 if (gus->interwave) {
322 spin_lock_irqsave(&gus->reg_lock, flags);
323 snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01 | (invert ? 0x08 : 0x00));
324 snd_gf1_dram_addr(gus, pos);
325 if (w16) {
326 outb(SNDRV_GF1_GW_DRAM_IO16, GUSP(gus, GF1REGSEL));
327 outsw(GUSP(gus, GF1DATALOW), buf, len >> 1);
328 } else {
329 outsb(GUSP(gus, DRAM), buf, len);
330 }
331 spin_unlock_irqrestore(&gus->reg_lock, flags);
332 buf += 512;
333 pos += 512;
334 } else {
335 invert = invert ? 0x80 : 0x00;
336 if (w16) {
337 len >>= 1;
338 while (len--) {
339 snd_gf1_poke(gus, pos++, *buf++);
340 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
341 }
342 } else {
343 while (len--)
344 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
345 }
346 }
347 if (count > 0 && !in_interrupt()) {
348 schedule_timeout_interruptible(1);
349 if (signal_pending(current))
350 return -EAGAIN;
351 }
352 }
353 return 0;
354}
355
356static int get_bpos(struct gus_pcm_private *pcmp, int voice, unsigned int pos,
357 unsigned int len)
358{
359 unsigned int bpos = pos + (voice * (pcmp->dma_size / 2));
360 if (snd_BUG_ON(bpos > pcmp->dma_size))
361 return -EIO;
362 if (snd_BUG_ON(bpos + len > pcmp->dma_size))
363 return -EIO;
364 return bpos;
365}
366
367static int playback_copy_ack(struct snd_pcm_substream *substream,
368 unsigned int bpos, unsigned int len)
369{
370 struct snd_pcm_runtime *runtime = substream->runtime;
371 struct gus_pcm_private *pcmp = runtime->private_data;
372 struct snd_gus_card *gus = pcmp->gus;
373 int w16, invert;
374
375 if (len > 32)
376 return snd_gf1_pcm_block_change(substream, bpos,
377 pcmp->memory + bpos, len);
378
379 w16 = (snd_pcm_format_width(runtime->format) == 16);
380 invert = snd_pcm_format_unsigned(runtime->format);
381 return snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos,
382 pcmp->memory + bpos, len, w16, invert);
383}
384
385static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream,
386 int voice, unsigned long pos,
387 void __user *src, unsigned long count)
388{
389 struct snd_pcm_runtime *runtime = substream->runtime;
390 struct gus_pcm_private *pcmp = runtime->private_data;
391 unsigned int len = count;
392 int bpos;
393
394 bpos = get_bpos(pcmp, voice, pos, len);
395 if (bpos < 0)
396 return pos;
397 if (copy_from_user(runtime->dma_area + bpos, src, len))
398 return -EFAULT;
399 return playback_copy_ack(substream, bpos, len);
400}
401
402static int snd_gf1_pcm_playback_copy_kernel(struct snd_pcm_substream *substream,
403 int voice, unsigned long pos,
404 void *src, unsigned long count)
405{
406 struct snd_pcm_runtime *runtime = substream->runtime;
407 struct gus_pcm_private *pcmp = runtime->private_data;
408 unsigned int len = count;
409 int bpos;
410
411 bpos = get_bpos(pcmp, voice, pos, len);
412 if (bpos < 0)
413 return pos;
414 memcpy(runtime->dma_area + bpos, src, len);
415 return playback_copy_ack(substream, bpos, len);
416}
417
418static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream,
419 int voice, unsigned long pos,
420 unsigned long count)
421{
422 struct snd_pcm_runtime *runtime = substream->runtime;
423 struct gus_pcm_private *pcmp = runtime->private_data;
424 unsigned int len = count;
425 int bpos;
426
427 bpos = get_bpos(pcmp, voice, pos, len);
428 if (bpos < 0)
429 return pos;
430 snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos,
431 bytes_to_samples(runtime, count));
432 return playback_copy_ack(substream, bpos, len);
433}
434
435static int snd_gf1_pcm_playback_hw_params(struct snd_pcm_substream *substream,
436 struct snd_pcm_hw_params *hw_params)
437{
438 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
439 struct snd_pcm_runtime *runtime = substream->runtime;
440 struct gus_pcm_private *pcmp = runtime->private_data;
441 int err;
442
443 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
444 return err;
445 if (err > 0) {
446 struct snd_gf1_mem_block *block;
447 if (pcmp->memory > 0) {
448 snd_gf1_mem_free(&gus->gf1.mem_alloc, pcmp->memory);
449 pcmp->memory = 0;
450 }
451 if ((block = snd_gf1_mem_alloc(&gus->gf1.mem_alloc,
452 SNDRV_GF1_MEM_OWNER_DRIVER,
453 "GF1 PCM",
454 runtime->dma_bytes, 1, 32,
455 NULL)) == NULL)
456 return -ENOMEM;
457 pcmp->memory = block->ptr;
458 }
459 pcmp->voices = params_channels(hw_params);
460 if (pcmp->pvoices[0] == NULL) {
461 if ((pcmp->pvoices[0] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL)
462 return -ENOMEM;
463 pcmp->pvoices[0]->handler_wave = snd_gf1_pcm_interrupt_wave;
464 pcmp->pvoices[0]->handler_volume = snd_gf1_pcm_interrupt_volume;
465 pcmp->pvoices[0]->volume_change = snd_gf1_pcm_volume_change;
466 pcmp->pvoices[0]->private_data = pcmp;
467 }
468 if (pcmp->voices > 1 && pcmp->pvoices[1] == NULL) {
469 if ((pcmp->pvoices[1] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL)
470 return -ENOMEM;
471 pcmp->pvoices[1]->handler_wave = snd_gf1_pcm_interrupt_wave;
472 pcmp->pvoices[1]->handler_volume = snd_gf1_pcm_interrupt_volume;
473 pcmp->pvoices[1]->volume_change = snd_gf1_pcm_volume_change;
474 pcmp->pvoices[1]->private_data = pcmp;
475 } else if (pcmp->voices == 1) {
476 if (pcmp->pvoices[1]) {
477 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
478 pcmp->pvoices[1] = NULL;
479 }
480 }
481 return 0;
482}
483
484static int snd_gf1_pcm_playback_hw_free(struct snd_pcm_substream *substream)
485{
486 struct snd_pcm_runtime *runtime = substream->runtime;
487 struct gus_pcm_private *pcmp = runtime->private_data;
488
489 snd_pcm_lib_free_pages(substream);
490 if (pcmp->pvoices[0]) {
491 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[0]);
492 pcmp->pvoices[0] = NULL;
493 }
494 if (pcmp->pvoices[1]) {
495 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
496 pcmp->pvoices[1] = NULL;
497 }
498 if (pcmp->memory > 0) {
499 snd_gf1_mem_free(&pcmp->gus->gf1.mem_alloc, pcmp->memory);
500 pcmp->memory = 0;
501 }
502 return 0;
503}
504
505static int snd_gf1_pcm_playback_prepare(struct snd_pcm_substream *substream)
506{
507 struct snd_pcm_runtime *runtime = substream->runtime;
508 struct gus_pcm_private *pcmp = runtime->private_data;
509
510 pcmp->bpos = 0;
511 pcmp->dma_size = snd_pcm_lib_buffer_bytes(substream);
512 pcmp->block_size = snd_pcm_lib_period_bytes(substream);
513 pcmp->blocks = pcmp->dma_size / pcmp->block_size;
514 return 0;
515}
516
517static int snd_gf1_pcm_playback_trigger(struct snd_pcm_substream *substream,
518 int cmd)
519{
520 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
521 struct snd_pcm_runtime *runtime = substream->runtime;
522 struct gus_pcm_private *pcmp = runtime->private_data;
523 int voice;
524
525 if (cmd == SNDRV_PCM_TRIGGER_START) {
526 snd_gf1_pcm_trigger_up(substream);
527 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
528 spin_lock(&pcmp->lock);
529 pcmp->flags &= ~SNDRV_GF1_PCM_PFLG_ACTIVE;
530 spin_unlock(&pcmp->lock);
531 voice = pcmp->pvoices[0]->number;
532 snd_gf1_stop_voices(gus, voice, voice);
533 if (pcmp->pvoices[1]) {
534 voice = pcmp->pvoices[1]->number;
535 snd_gf1_stop_voices(gus, voice, voice);
536 }
537 } else {
538 return -EINVAL;
539 }
540 return 0;
541}
542
543static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *substream)
544{
545 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
546 struct snd_pcm_runtime *runtime = substream->runtime;
547 struct gus_pcm_private *pcmp = runtime->private_data;
548 unsigned int pos;
549 unsigned char voice_ctrl;
550
551 pos = 0;
552 spin_lock(&gus->reg_lock);
553 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
554 snd_gf1_select_voice(gus, pcmp->pvoices[0]->number);
555 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
556 pos = (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4) - pcmp->memory;
557 if (substream->runtime->channels > 1)
558 pos <<= 1;
559 pos = bytes_to_frames(runtime, pos);
560 }
561 spin_unlock(&gus->reg_lock);
562 return pos;
563}
564
565static const struct snd_ratnum clock = {
566 .num = 9878400/16,
567 .den_min = 2,
568 .den_max = 257,
569 .den_step = 1,
570};
571
572static const struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
573 .nrats = 1,
574 .rats = &clock,
575};
576
577static int snd_gf1_pcm_capture_hw_params(struct snd_pcm_substream *substream,
578 struct snd_pcm_hw_params *hw_params)
579{
580 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
581
582 gus->c_dma_size = params_buffer_bytes(hw_params);
583 gus->c_period_size = params_period_bytes(hw_params);
584 gus->c_pos = 0;
585 gus->gf1.pcm_rcntrl_reg = 0x21;
586 if (params_channels(hw_params) > 1)
587 gus->gf1.pcm_rcntrl_reg |= 2;
588 if (gus->gf1.dma2 > 3)
589 gus->gf1.pcm_rcntrl_reg |= 4;
590 if (snd_pcm_format_unsigned(params_format(hw_params)))
591 gus->gf1.pcm_rcntrl_reg |= 0x80;
592 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
593}
594
595static int snd_gf1_pcm_capture_hw_free(struct snd_pcm_substream *substream)
596{
597 return snd_pcm_lib_free_pages(substream);
598}
599
600static int snd_gf1_pcm_capture_prepare(struct snd_pcm_substream *substream)
601{
602 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
603 struct snd_pcm_runtime *runtime = substream->runtime;
604
605 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RECORD_RATE, runtime->rate_den - 2);
606 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0);
607 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
608 snd_dma_program(gus->gf1.dma2, runtime->dma_addr, gus->c_period_size, DMA_MODE_READ);
609 return 0;
610}
611
612static int snd_gf1_pcm_capture_trigger(struct snd_pcm_substream *substream,
613 int cmd)
614{
615 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
616 int val;
617
618 if (cmd == SNDRV_PCM_TRIGGER_START) {
619 val = gus->gf1.pcm_rcntrl_reg;
620 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
621 val = 0;
622 } else {
623 return -EINVAL;
624 }
625
626 spin_lock(&gus->reg_lock);
627 snd_gf1_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, val);
628 snd_gf1_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
629 spin_unlock(&gus->reg_lock);
630 return 0;
631}
632
633static snd_pcm_uframes_t snd_gf1_pcm_capture_pointer(struct snd_pcm_substream *substream)
634{
635 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
636 int pos = snd_dma_pointer(gus->gf1.dma2, gus->c_period_size);
637 pos = bytes_to_frames(substream->runtime, (gus->c_pos + pos) % gus->c_dma_size);
638 return pos;
639}
640
641static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus)
642{
643 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0);
644 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
645 if (gus->pcm_cap_substream != NULL) {
646 snd_gf1_pcm_capture_prepare(gus->pcm_cap_substream);
647 snd_gf1_pcm_capture_trigger(gus->pcm_cap_substream, SNDRV_PCM_TRIGGER_START);
648 gus->c_pos += gus->c_period_size;
649 snd_pcm_period_elapsed(gus->pcm_cap_substream);
650 }
651}
652
653static const struct snd_pcm_hardware snd_gf1_pcm_playback =
654{
655 .info = SNDRV_PCM_INFO_NONINTERLEAVED,
656 .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
657 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
658 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
659 .rate_min = 5510,
660 .rate_max = 48000,
661 .channels_min = 1,
662 .channels_max = 2,
663 .buffer_bytes_max = (128*1024),
664 .period_bytes_min = 64,
665 .period_bytes_max = (128*1024),
666 .periods_min = 1,
667 .periods_max = 1024,
668 .fifo_size = 0,
669};
670
671static const struct snd_pcm_hardware snd_gf1_pcm_capture =
672{
673 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
674 SNDRV_PCM_INFO_MMAP_VALID),
675 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8,
676 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100,
677 .rate_min = 5510,
678 .rate_max = 44100,
679 .channels_min = 1,
680 .channels_max = 2,
681 .buffer_bytes_max = (128*1024),
682 .period_bytes_min = 64,
683 .period_bytes_max = (128*1024),
684 .periods_min = 1,
685 .periods_max = 1024,
686 .fifo_size = 0,
687};
688
689static void snd_gf1_pcm_playback_free(struct snd_pcm_runtime *runtime)
690{
691 kfree(runtime->private_data);
692}
693
694static int snd_gf1_pcm_playback_open(struct snd_pcm_substream *substream)
695{
696 struct gus_pcm_private *pcmp;
697 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
698 struct snd_pcm_runtime *runtime = substream->runtime;
699 int err;
700
701 pcmp = kzalloc(sizeof(*pcmp), GFP_KERNEL);
702 if (pcmp == NULL)
703 return -ENOMEM;
704 pcmp->gus = gus;
705 spin_lock_init(&pcmp->lock);
706 init_waitqueue_head(&pcmp->sleep);
707 atomic_set(&pcmp->dma_count, 0);
708
709 runtime->private_data = pcmp;
710 runtime->private_free = snd_gf1_pcm_playback_free;
711
712#if 0
713 printk(KERN_DEBUG "playback.buffer = 0x%lx, gf1.pcm_buffer = 0x%lx\n",
714 (long) pcm->playback.buffer, (long) gus->gf1.pcm_buffer);
715#endif
716 if ((err = snd_gf1_dma_init(gus)) < 0)
717 return err;
718 pcmp->flags = SNDRV_GF1_PCM_PFLG_NONE;
719 pcmp->substream = substream;
720 runtime->hw = snd_gf1_pcm_playback;
721 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.buffer_bytes_max);
722 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.period_bytes_max);
723 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
724 return 0;
725}
726
727static int snd_gf1_pcm_playback_close(struct snd_pcm_substream *substream)
728{
729 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
730 struct snd_pcm_runtime *runtime = substream->runtime;
731 struct gus_pcm_private *pcmp = runtime->private_data;
732
733 if (!wait_event_timeout(pcmp->sleep, (atomic_read(&pcmp->dma_count) <= 0), 2*HZ))
734 snd_printk(KERN_ERR "gf1 pcm - serious DMA problem\n");
735
736 snd_gf1_dma_done(gus);
737 return 0;
738}
739
740static int snd_gf1_pcm_capture_open(struct snd_pcm_substream *substream)
741{
742 struct snd_pcm_runtime *runtime = substream->runtime;
743 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
744
745 gus->gf1.interrupt_handler_dma_read = snd_gf1_pcm_interrupt_dma_read;
746 gus->pcm_cap_substream = substream;
747 substream->runtime->hw = snd_gf1_pcm_capture;
748 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.buffer_bytes_max);
749 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.period_bytes_max);
750 snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
751 &hw_constraints_clocks);
752 return 0;
753}
754
755static int snd_gf1_pcm_capture_close(struct snd_pcm_substream *substream)
756{
757 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
758
759 gus->pcm_cap_substream = NULL;
760 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ);
761 return 0;
762}
763
764static int snd_gf1_pcm_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
765{
766 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
767 uinfo->count = 2;
768 uinfo->value.integer.min = 0;
769 uinfo->value.integer.max = 127;
770 return 0;
771}
772
773static int snd_gf1_pcm_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
774{
775 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
776 unsigned long flags;
777
778 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
779 ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1;
780 ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1;
781 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
782 return 0;
783}
784
785static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
786{
787 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
788 unsigned long flags;
789 int change;
790 unsigned int idx;
791 unsigned short val1, val2, vol;
792 struct gus_pcm_private *pcmp;
793 struct snd_gus_voice *pvoice;
794
795 val1 = ucontrol->value.integer.value[0] & 127;
796 val2 = ucontrol->value.integer.value[1] & 127;
797 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
798 change = val1 != gus->gf1.pcm_volume_level_left1 ||
799 val2 != gus->gf1.pcm_volume_level_right1;
800 gus->gf1.pcm_volume_level_left1 = val1;
801 gus->gf1.pcm_volume_level_right1 = val2;
802 gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4;
803 gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4;
804 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
805
806 spin_lock_irqsave(&gus->voice_alloc, flags);
807 for (idx = 0; idx < 32; idx++) {
808 pvoice = &gus->gf1.voices[idx];
809 if (!pvoice->pcm)
810 continue;
811 pcmp = pvoice->private_data;
812 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
813 continue;
814
815 spin_lock(&gus->reg_lock);
816 snd_gf1_select_voice(gus, pvoice->number);
817 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
818 vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
819 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
820 pcmp->final_volume = 1;
821 spin_unlock(&gus->reg_lock);
822 }
823 spin_unlock_irqrestore(&gus->voice_alloc, flags);
824 return change;
825}
826
827static const struct snd_kcontrol_new snd_gf1_pcm_volume_control =
828{
829 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
830 .name = "PCM Playback Volume",
831 .info = snd_gf1_pcm_volume_info,
832 .get = snd_gf1_pcm_volume_get,
833 .put = snd_gf1_pcm_volume_put
834};
835
836static const struct snd_kcontrol_new snd_gf1_pcm_volume_control1 =
837{
838 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
839 .name = "GPCM Playback Volume",
840 .info = snd_gf1_pcm_volume_info,
841 .get = snd_gf1_pcm_volume_get,
842 .put = snd_gf1_pcm_volume_put
843};
844
845static const struct snd_pcm_ops snd_gf1_pcm_playback_ops = {
846 .open = snd_gf1_pcm_playback_open,
847 .close = snd_gf1_pcm_playback_close,
848 .ioctl = snd_pcm_lib_ioctl,
849 .hw_params = snd_gf1_pcm_playback_hw_params,
850 .hw_free = snd_gf1_pcm_playback_hw_free,
851 .prepare = snd_gf1_pcm_playback_prepare,
852 .trigger = snd_gf1_pcm_playback_trigger,
853 .pointer = snd_gf1_pcm_playback_pointer,
854 .copy_user = snd_gf1_pcm_playback_copy,
855 .copy_kernel = snd_gf1_pcm_playback_copy_kernel,
856 .fill_silence = snd_gf1_pcm_playback_silence,
857};
858
859static const struct snd_pcm_ops snd_gf1_pcm_capture_ops = {
860 .open = snd_gf1_pcm_capture_open,
861 .close = snd_gf1_pcm_capture_close,
862 .ioctl = snd_pcm_lib_ioctl,
863 .hw_params = snd_gf1_pcm_capture_hw_params,
864 .hw_free = snd_gf1_pcm_capture_hw_free,
865 .prepare = snd_gf1_pcm_capture_prepare,
866 .trigger = snd_gf1_pcm_capture_trigger,
867 .pointer = snd_gf1_pcm_capture_pointer,
868};
869
870int snd_gf1_pcm_new(struct snd_gus_card *gus, int pcm_dev, int control_index)
871{
872 struct snd_card *card;
873 struct snd_kcontrol *kctl;
874 struct snd_pcm *pcm;
875 struct snd_pcm_substream *substream;
876 int capture, err;
877
878 card = gus->card;
879 capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0;
880 err = snd_pcm_new(card,
881 gus->interwave ? "AMD InterWave" : "GF1",
882 pcm_dev,
883 gus->gf1.pcm_channels / 2,
884 capture,
885 &pcm);
886 if (err < 0)
887 return err;
888 pcm->private_data = gus;
889
890 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops);
891
892 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
893 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV,
894 snd_dma_isa_data(),
895 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024);
896
897 pcm->info_flags = 0;
898 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
899 if (capture) {
900 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_gf1_pcm_capture_ops);
901 if (gus->gf1.dma2 == gus->gf1.dma1)
902 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
903 snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
904 SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(),
905 64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024);
906 }
907 strcpy(pcm->name, pcm->id);
908 if (gus->interwave) {
909 sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A');
910 }
911 strcat(pcm->name, " (synth)");
912 gus->pcm = pcm;
913
914 if (gus->codec_flag)
915 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus);
916 else
917 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus);
918 if ((err = snd_ctl_add(card, kctl)) < 0)
919 return err;
920 kctl->id.index = control_index;
921
922 return 0;
923}
924
925
