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13#include <asm/dma.h>
14#include <linux/slab.h>
15#include <linux/sched/signal.h>
16
17#include <sound/core.h>
18#include <sound/control.h>
19#include <sound/gus.h>
20#include <sound/pcm_params.h>
21#include "gus_tables.h"
22
23
24
25#define SNDRV_GF1_PCM_RATE 48000
26
27#define SNDRV_GF1_PCM_PFLG_NONE 0
28#define SNDRV_GF1_PCM_PFLG_ACTIVE (1<<0)
29#define SNDRV_GF1_PCM_PFLG_NEUTRAL (2<<0)
30
31struct gus_pcm_private {
32 struct snd_gus_card * gus;
33 struct snd_pcm_substream *substream;
34 spinlock_t lock;
35 unsigned int voices;
36 struct snd_gus_voice *pvoices[2];
37 unsigned int memory;
38 unsigned short flags;
39 unsigned char voice_ctrl, ramp_ctrl;
40 unsigned int bpos;
41 unsigned int blocks;
42 unsigned int block_size;
43 unsigned int dma_size;
44 wait_queue_head_t sleep;
45 atomic_t dma_count;
46 int final_volume;
47};
48
49static void snd_gf1_pcm_block_change_ack(struct snd_gus_card * gus, void *private_data)
50{
51 struct gus_pcm_private *pcmp = private_data;
52
53 if (pcmp) {
54 atomic_dec(&pcmp->dma_count);
55 wake_up(&pcmp->sleep);
56 }
57}
58
59static int snd_gf1_pcm_block_change(struct snd_pcm_substream *substream,
60 unsigned int offset,
61 unsigned int addr,
62 unsigned int count)
63{
64 struct snd_gf1_dma_block block;
65 struct snd_pcm_runtime *runtime = substream->runtime;
66 struct gus_pcm_private *pcmp = runtime->private_data;
67
68 count += offset & 31;
69 offset &= ~31;
70
71
72
73
74 memset(&block, 0, sizeof(block));
75 block.cmd = SNDRV_GF1_DMA_IRQ;
76 if (snd_pcm_format_unsigned(runtime->format))
77 block.cmd |= SNDRV_GF1_DMA_UNSIGNED;
78 if (snd_pcm_format_width(runtime->format) == 16)
79 block.cmd |= SNDRV_GF1_DMA_16BIT;
80 block.addr = addr & ~31;
81 block.buffer = runtime->dma_area + offset;
82 block.buf_addr = runtime->dma_addr + offset;
83 block.count = count;
84 block.private_data = pcmp;
85 block.ack = snd_gf1_pcm_block_change_ack;
86 if (!snd_gf1_dma_transfer_block(pcmp->gus, &block, 0, 0))
87 atomic_inc(&pcmp->dma_count);
88 return 0;
89}
90
91static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
92{
93 struct snd_pcm_runtime *runtime = substream->runtime;
94 struct gus_pcm_private *pcmp = runtime->private_data;
95 struct snd_gus_card * gus = pcmp->gus;
96 unsigned long flags;
97 unsigned char voice_ctrl, ramp_ctrl;
98 unsigned short rate;
99 unsigned int curr, begin, end;
100 unsigned short vol;
101 unsigned char pan;
102 unsigned int voice;
103
104 spin_lock_irqsave(&pcmp->lock, flags);
105 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
106 spin_unlock_irqrestore(&pcmp->lock, flags);
107 return;
108 }
109 pcmp->flags |= SNDRV_GF1_PCM_PFLG_ACTIVE;
110 pcmp->final_volume = 0;
111 spin_unlock_irqrestore(&pcmp->lock, flags);
112 rate = snd_gf1_translate_freq(gus, runtime->rate << 4);
113
114 voice_ctrl = snd_pcm_format_width(runtime->format) == 16 ? 0x24 : 0x20;
115
116 ramp_ctrl = 0x24;
117 if (pcmp->blocks == 1) {
118 voice_ctrl |= 0x08;
119 ramp_ctrl &= ~0x04;
120 }
121 for (voice = 0; voice < pcmp->voices; voice++) {
122 begin = pcmp->memory + voice * (pcmp->dma_size / runtime->channels);
123 curr = begin + (pcmp->bpos * pcmp->block_size) / runtime->channels;
124 end = curr + (pcmp->block_size / runtime->channels);
125 end -= snd_pcm_format_width(runtime->format) == 16 ? 2 : 1;
126
127
128
129
130
131 pan = runtime->channels == 2 ? (!voice ? 1 : 14) : 8;
132 vol = !voice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
133 spin_lock_irqsave(&gus->reg_lock, flags);
134 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
135 snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, pan);
136 snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, rate);
137 snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, begin << 4, voice_ctrl & 4);
138 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
139 snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, curr << 4, voice_ctrl & 4);
140 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME << 4);
141 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0x2f);
142 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET);
143 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, vol >> 8);
144 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
145 if (!gus->gf1.enh_mode) {
146 snd_gf1_delay(gus);
147 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
148 }
149 spin_unlock_irqrestore(&gus->reg_lock, flags);
150 }
151 spin_lock_irqsave(&gus->reg_lock, flags);
152 for (voice = 0; voice < pcmp->voices; voice++) {
153 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
154 if (gus->gf1.enh_mode)
155 snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, 0x00);
156 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
157 voice_ctrl &= ~0x20;
158 }
159 voice_ctrl |= 0x20;
160 if (!gus->gf1.enh_mode) {
161 snd_gf1_delay(gus);
162 for (voice = 0; voice < pcmp->voices; voice++) {
163 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
164 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
165 voice_ctrl &= ~0x20;
166 }
167 }
168 spin_unlock_irqrestore(&gus->reg_lock, flags);
169}
170
171static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus,
172 struct snd_gus_voice *pvoice)
173{
174 struct gus_pcm_private * pcmp;
175 struct snd_pcm_runtime *runtime;
176 unsigned char voice_ctrl, ramp_ctrl;
177 unsigned int idx;
178 unsigned int end, step;
179
180 if (!pvoice->private_data) {
181 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
182 snd_gf1_smart_stop_voice(gus, pvoice->number);
183 return;
184 }
185 pcmp = pvoice->private_data;
186 if (pcmp == NULL) {
187 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
188 snd_gf1_smart_stop_voice(gus, pvoice->number);
189 return;
190 }
191 gus = pcmp->gus;
192 runtime = pcmp->substream->runtime;
193
194 spin_lock(&gus->reg_lock);
195 snd_gf1_select_voice(gus, pvoice->number);
196 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b;
197 ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03;
198#if 0
199 snd_gf1_select_voice(gus, pvoice->number);
200 printk(KERN_DEBUG "position = 0x%x\n",
201 (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
202 snd_gf1_select_voice(gus, pcmp->pvoices[1]->number);
203 printk(KERN_DEBUG "position = 0x%x\n",
204 (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
205 snd_gf1_select_voice(gus, pvoice->number);
206#endif
207 pcmp->bpos++;
208 pcmp->bpos %= pcmp->blocks;
209 if (pcmp->bpos + 1 >= pcmp->blocks) {
210 voice_ctrl |= 0x08;
211 } else {
212 ramp_ctrl |= 0x04;
213 }
214 end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels);
215 end -= voice_ctrl & 4 ? 2 : 1;
216 step = pcmp->dma_size / runtime->channels;
217 voice_ctrl |= 0x20;
218 if (!pcmp->final_volume) {
219 ramp_ctrl |= 0x20;
220 ramp_ctrl &= ~0x03;
221 }
222 for (idx = 0; idx < pcmp->voices; idx++, end += step) {
223 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
224 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
225 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
226 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
227 voice_ctrl &= ~0x20;
228 }
229 if (!gus->gf1.enh_mode) {
230 snd_gf1_delay(gus);
231 voice_ctrl |= 0x20;
232 for (idx = 0; idx < pcmp->voices; idx++) {
233 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
234 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
235 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
236 voice_ctrl &= ~0x20;
237 }
238 }
239 spin_unlock(&gus->reg_lock);
240
241 snd_pcm_period_elapsed(pcmp->substream);
242#if 0
243 if ((runtime->flags & SNDRV_PCM_FLG_MMAP) &&
244 *runtime->state == SNDRV_PCM_STATE_RUNNING) {
245 end = pcmp->bpos * pcmp->block_size;
246 if (runtime->channels > 1) {
247 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + (end / 2), pcmp->block_size / 2);
248 snd_gf1_pcm_block_change(pcmp->substream, end + (pcmp->block_size / 2), pcmp->memory + (pcmp->dma_size / 2) + (end / 2), pcmp->block_size / 2);
249 } else {
250 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size);
251 }
252 }
253#endif
254}
255
256static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus,
257 struct snd_gus_voice * pvoice)
258{
259 unsigned short vol;
260 int cvoice;
261 struct gus_pcm_private *pcmp = pvoice->private_data;
262
263
264 spin_lock(&gus->reg_lock);
265 snd_gf1_select_voice(gus, pvoice->number);
266 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
267 spin_unlock(&gus->reg_lock);
268 if (pcmp == NULL)
269 return;
270
271 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
272 return;
273
274 cvoice = pcmp->pvoices[0] == pvoice ? 0 : 1;
275 if (pcmp->substream == NULL)
276 return;
277 vol = !cvoice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
278 spin_lock(&gus->reg_lock);
279 snd_gf1_select_voice(gus, pvoice->number);
280 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
281 pcmp->final_volume = 1;
282 spin_unlock(&gus->reg_lock);
283}
284
285static void snd_gf1_pcm_volume_change(struct snd_gus_card * gus)
286{
287}
288
289static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf,
290 unsigned int pos, unsigned int count,
291 int w16, int invert)
292{
293 unsigned int len;
294 unsigned long flags;
295
296
297
298
299
300
301 while (count > 0) {
302 len = count;
303 if (len > 512)
304 len = 512;
305 count -= len;
306 if (gus->interwave) {
307 spin_lock_irqsave(&gus->reg_lock, flags);
308 snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01 | (invert ? 0x08 : 0x00));
309 snd_gf1_dram_addr(gus, pos);
310 if (w16) {
311 outb(SNDRV_GF1_GW_DRAM_IO16, GUSP(gus, GF1REGSEL));
312 outsw(GUSP(gus, GF1DATALOW), buf, len >> 1);
313 } else {
314 outsb(GUSP(gus, DRAM), buf, len);
315 }
316 spin_unlock_irqrestore(&gus->reg_lock, flags);
317 buf += 512;
318 pos += 512;
319 } else {
320 invert = invert ? 0x80 : 0x00;
321 if (w16) {
322 len >>= 1;
323 while (len--) {
324 snd_gf1_poke(gus, pos++, *buf++);
325 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
326 }
327 } else {
328 while (len--)
329 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
330 }
331 }
332 if (count > 0 && !in_interrupt()) {
333 schedule_timeout_interruptible(1);
334 if (signal_pending(current))
335 return -EAGAIN;
336 }
337 }
338 return 0;
339}
340
341static int get_bpos(struct gus_pcm_private *pcmp, int voice, unsigned int pos,
342 unsigned int len)
343{
344 unsigned int bpos = pos + (voice * (pcmp->dma_size / 2));
345 if (snd_BUG_ON(bpos > pcmp->dma_size))
346 return -EIO;
347 if (snd_BUG_ON(bpos + len > pcmp->dma_size))
348 return -EIO;
349 return bpos;
350}
351
352static int playback_copy_ack(struct snd_pcm_substream *substream,
353 unsigned int bpos, unsigned int len)
354{
355 struct snd_pcm_runtime *runtime = substream->runtime;
356 struct gus_pcm_private *pcmp = runtime->private_data;
357 struct snd_gus_card *gus = pcmp->gus;
358 int w16, invert;
359
360 if (len > 32)
361 return snd_gf1_pcm_block_change(substream, bpos,
362 pcmp->memory + bpos, len);
363
364 w16 = (snd_pcm_format_width(runtime->format) == 16);
365 invert = snd_pcm_format_unsigned(runtime->format);
366 return snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos,
367 pcmp->memory + bpos, len, w16, invert);
368}
369
370static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream,
371 int voice, unsigned long pos,
372 void __user *src, unsigned long count)
373{
374 struct snd_pcm_runtime *runtime = substream->runtime;
375 struct gus_pcm_private *pcmp = runtime->private_data;
376 unsigned int len = count;
377 int bpos;
378
379 bpos = get_bpos(pcmp, voice, pos, len);
380 if (bpos < 0)
381 return pos;
382 if (copy_from_user(runtime->dma_area + bpos, src, len))
383 return -EFAULT;
384 return playback_copy_ack(substream, bpos, len);
385}
386
387static int snd_gf1_pcm_playback_copy_kernel(struct snd_pcm_substream *substream,
388 int voice, unsigned long pos,
389 void *src, unsigned long count)
390{
391 struct snd_pcm_runtime *runtime = substream->runtime;
392 struct gus_pcm_private *pcmp = runtime->private_data;
393 unsigned int len = count;
394 int bpos;
395
396 bpos = get_bpos(pcmp, voice, pos, len);
397 if (bpos < 0)
398 return pos;
399 memcpy(runtime->dma_area + bpos, src, len);
400 return playback_copy_ack(substream, bpos, len);
401}
402
403static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream,
404 int voice, unsigned long pos,
405 unsigned long count)
406{
407 struct snd_pcm_runtime *runtime = substream->runtime;
408 struct gus_pcm_private *pcmp = runtime->private_data;
409 unsigned int len = count;
410 int bpos;
411
412 bpos = get_bpos(pcmp, voice, pos, len);
413 if (bpos < 0)
414 return pos;
415 snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos,
416 bytes_to_samples(runtime, count));
417 return playback_copy_ack(substream, bpos, len);
418}
419
420static int snd_gf1_pcm_playback_hw_params(struct snd_pcm_substream *substream,
421 struct snd_pcm_hw_params *hw_params)
422{
423 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
424 struct snd_pcm_runtime *runtime = substream->runtime;
425 struct gus_pcm_private *pcmp = runtime->private_data;
426
427 if (runtime->buffer_changed) {
428 struct snd_gf1_mem_block *block;
429 if (pcmp->memory > 0) {
430 snd_gf1_mem_free(&gus->gf1.mem_alloc, pcmp->memory);
431 pcmp->memory = 0;
432 }
433 block = snd_gf1_mem_alloc(&gus->gf1.mem_alloc,
434 SNDRV_GF1_MEM_OWNER_DRIVER,
435 "GF1 PCM",
436 runtime->dma_bytes, 1, 32,
437 NULL);
438 if (!block)
439 return -ENOMEM;
440 pcmp->memory = block->ptr;
441 }
442 pcmp->voices = params_channels(hw_params);
443 if (pcmp->pvoices[0] == NULL) {
444 pcmp->pvoices[0] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0);
445 if (!pcmp->pvoices[0])
446 return -ENOMEM;
447 pcmp->pvoices[0]->handler_wave = snd_gf1_pcm_interrupt_wave;
448 pcmp->pvoices[0]->handler_volume = snd_gf1_pcm_interrupt_volume;
449 pcmp->pvoices[0]->volume_change = snd_gf1_pcm_volume_change;
450 pcmp->pvoices[0]->private_data = pcmp;
451 }
452 if (pcmp->voices > 1 && pcmp->pvoices[1] == NULL) {
453 pcmp->pvoices[1] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0);
454 if (!pcmp->pvoices[1])
455 return -ENOMEM;
456 pcmp->pvoices[1]->handler_wave = snd_gf1_pcm_interrupt_wave;
457 pcmp->pvoices[1]->handler_volume = snd_gf1_pcm_interrupt_volume;
458 pcmp->pvoices[1]->volume_change = snd_gf1_pcm_volume_change;
459 pcmp->pvoices[1]->private_data = pcmp;
460 } else if (pcmp->voices == 1) {
461 if (pcmp->pvoices[1]) {
462 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
463 pcmp->pvoices[1] = NULL;
464 }
465 }
466 return 0;
467}
468
469static int snd_gf1_pcm_playback_hw_free(struct snd_pcm_substream *substream)
470{
471 struct snd_pcm_runtime *runtime = substream->runtime;
472 struct gus_pcm_private *pcmp = runtime->private_data;
473
474 if (pcmp->pvoices[0]) {
475 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[0]);
476 pcmp->pvoices[0] = NULL;
477 }
478 if (pcmp->pvoices[1]) {
479 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
480 pcmp->pvoices[1] = NULL;
481 }
482 if (pcmp->memory > 0) {
483 snd_gf1_mem_free(&pcmp->gus->gf1.mem_alloc, pcmp->memory);
484 pcmp->memory = 0;
485 }
486 return 0;
487}
488
489static int snd_gf1_pcm_playback_prepare(struct snd_pcm_substream *substream)
490{
491 struct snd_pcm_runtime *runtime = substream->runtime;
492 struct gus_pcm_private *pcmp = runtime->private_data;
493
494 pcmp->bpos = 0;
495 pcmp->dma_size = snd_pcm_lib_buffer_bytes(substream);
496 pcmp->block_size = snd_pcm_lib_period_bytes(substream);
497 pcmp->blocks = pcmp->dma_size / pcmp->block_size;
498 return 0;
499}
500
501static int snd_gf1_pcm_playback_trigger(struct snd_pcm_substream *substream,
502 int cmd)
503{
504 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
505 struct snd_pcm_runtime *runtime = substream->runtime;
506 struct gus_pcm_private *pcmp = runtime->private_data;
507 int voice;
508
509 if (cmd == SNDRV_PCM_TRIGGER_START) {
510 snd_gf1_pcm_trigger_up(substream);
511 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
512 spin_lock(&pcmp->lock);
513 pcmp->flags &= ~SNDRV_GF1_PCM_PFLG_ACTIVE;
514 spin_unlock(&pcmp->lock);
515 voice = pcmp->pvoices[0]->number;
516 snd_gf1_stop_voices(gus, voice, voice);
517 if (pcmp->pvoices[1]) {
518 voice = pcmp->pvoices[1]->number;
519 snd_gf1_stop_voices(gus, voice, voice);
520 }
521 } else {
522 return -EINVAL;
523 }
524 return 0;
525}
526
527static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *substream)
528{
529 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
530 struct snd_pcm_runtime *runtime = substream->runtime;
531 struct gus_pcm_private *pcmp = runtime->private_data;
532 unsigned int pos;
533 unsigned char voice_ctrl;
534
535 pos = 0;
536 spin_lock(&gus->reg_lock);
537 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
538 snd_gf1_select_voice(gus, pcmp->pvoices[0]->number);
539 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
540 pos = (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4) - pcmp->memory;
541 if (substream->runtime->channels > 1)
542 pos <<= 1;
543 pos = bytes_to_frames(runtime, pos);
544 }
545 spin_unlock(&gus->reg_lock);
546 return pos;
547}
548
549static const struct snd_ratnum clock = {
550 .num = 9878400/16,
551 .den_min = 2,
552 .den_max = 257,
553 .den_step = 1,
554};
555
556static const struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
557 .nrats = 1,
558 .rats = &clock,
559};
560
561static int snd_gf1_pcm_capture_hw_params(struct snd_pcm_substream *substream,
562 struct snd_pcm_hw_params *hw_params)
563{
564 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
565
566 gus->c_dma_size = params_buffer_bytes(hw_params);
567 gus->c_period_size = params_period_bytes(hw_params);
568 gus->c_pos = 0;
569 gus->gf1.pcm_rcntrl_reg = 0x21;
570 if (params_channels(hw_params) > 1)
571 gus->gf1.pcm_rcntrl_reg |= 2;
572 if (gus->gf1.dma2 > 3)
573 gus->gf1.pcm_rcntrl_reg |= 4;
574 if (snd_pcm_format_unsigned(params_format(hw_params)))
575 gus->gf1.pcm_rcntrl_reg |= 0x80;
576 return 0;
577}
578
579static int snd_gf1_pcm_capture_prepare(struct snd_pcm_substream *substream)
580{
581 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
582 struct snd_pcm_runtime *runtime = substream->runtime;
583
584 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RECORD_RATE, runtime->rate_den - 2);
585 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0);
586 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
587 snd_dma_program(gus->gf1.dma2, runtime->dma_addr, gus->c_period_size, DMA_MODE_READ);
588 return 0;
589}
590
591static int snd_gf1_pcm_capture_trigger(struct snd_pcm_substream *substream,
592 int cmd)
593{
594 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
595 int val;
596
597 if (cmd == SNDRV_PCM_TRIGGER_START) {
598 val = gus->gf1.pcm_rcntrl_reg;
599 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
600 val = 0;
601 } else {
602 return -EINVAL;
603 }
604
605 spin_lock(&gus->reg_lock);
606 snd_gf1_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, val);
607 snd_gf1_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
608 spin_unlock(&gus->reg_lock);
609 return 0;
610}
611
612static snd_pcm_uframes_t snd_gf1_pcm_capture_pointer(struct snd_pcm_substream *substream)
613{
614 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
615 int pos = snd_dma_pointer(gus->gf1.dma2, gus->c_period_size);
616 pos = bytes_to_frames(substream->runtime, (gus->c_pos + pos) % gus->c_dma_size);
617 return pos;
618}
619
620static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus)
621{
622 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0);
623 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
624 if (gus->pcm_cap_substream != NULL) {
625 snd_gf1_pcm_capture_prepare(gus->pcm_cap_substream);
626 snd_gf1_pcm_capture_trigger(gus->pcm_cap_substream, SNDRV_PCM_TRIGGER_START);
627 gus->c_pos += gus->c_period_size;
628 snd_pcm_period_elapsed(gus->pcm_cap_substream);
629 }
630}
631
632static const struct snd_pcm_hardware snd_gf1_pcm_playback =
633{
634 .info = SNDRV_PCM_INFO_NONINTERLEAVED,
635 .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
636 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
637 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
638 .rate_min = 5510,
639 .rate_max = 48000,
640 .channels_min = 1,
641 .channels_max = 2,
642 .buffer_bytes_max = (128*1024),
643 .period_bytes_min = 64,
644 .period_bytes_max = (128*1024),
645 .periods_min = 1,
646 .periods_max = 1024,
647 .fifo_size = 0,
648};
649
650static const struct snd_pcm_hardware snd_gf1_pcm_capture =
651{
652 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
653 SNDRV_PCM_INFO_MMAP_VALID),
654 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8,
655 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100,
656 .rate_min = 5510,
657 .rate_max = 44100,
658 .channels_min = 1,
659 .channels_max = 2,
660 .buffer_bytes_max = (128*1024),
661 .period_bytes_min = 64,
662 .period_bytes_max = (128*1024),
663 .periods_min = 1,
664 .periods_max = 1024,
665 .fifo_size = 0,
666};
667
668static void snd_gf1_pcm_playback_free(struct snd_pcm_runtime *runtime)
669{
670 kfree(runtime->private_data);
671}
672
673static int snd_gf1_pcm_playback_open(struct snd_pcm_substream *substream)
674{
675 struct gus_pcm_private *pcmp;
676 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
677 struct snd_pcm_runtime *runtime = substream->runtime;
678 int err;
679
680 pcmp = kzalloc(sizeof(*pcmp), GFP_KERNEL);
681 if (pcmp == NULL)
682 return -ENOMEM;
683 pcmp->gus = gus;
684 spin_lock_init(&pcmp->lock);
685 init_waitqueue_head(&pcmp->sleep);
686 atomic_set(&pcmp->dma_count, 0);
687
688 runtime->private_data = pcmp;
689 runtime->private_free = snd_gf1_pcm_playback_free;
690
691#if 0
692 printk(KERN_DEBUG "playback.buffer = 0x%lx, gf1.pcm_buffer = 0x%lx\n",
693 (long) pcm->playback.buffer, (long) gus->gf1.pcm_buffer);
694#endif
695 err = snd_gf1_dma_init(gus);
696 if (err < 0)
697 return err;
698 pcmp->flags = SNDRV_GF1_PCM_PFLG_NONE;
699 pcmp->substream = substream;
700 runtime->hw = snd_gf1_pcm_playback;
701 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.buffer_bytes_max);
702 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.period_bytes_max);
703 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
704 return 0;
705}
706
707static int snd_gf1_pcm_playback_close(struct snd_pcm_substream *substream)
708{
709 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
710 struct snd_pcm_runtime *runtime = substream->runtime;
711 struct gus_pcm_private *pcmp = runtime->private_data;
712
713 if (!wait_event_timeout(pcmp->sleep, (atomic_read(&pcmp->dma_count) <= 0), 2*HZ))
714 snd_printk(KERN_ERR "gf1 pcm - serious DMA problem\n");
715
716 snd_gf1_dma_done(gus);
717 return 0;
718}
719
720static int snd_gf1_pcm_capture_open(struct snd_pcm_substream *substream)
721{
722 struct snd_pcm_runtime *runtime = substream->runtime;
723 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
724
725 gus->gf1.interrupt_handler_dma_read = snd_gf1_pcm_interrupt_dma_read;
726 gus->pcm_cap_substream = substream;
727 substream->runtime->hw = snd_gf1_pcm_capture;
728 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.buffer_bytes_max);
729 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.period_bytes_max);
730 snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
731 &hw_constraints_clocks);
732 return 0;
733}
734
735static int snd_gf1_pcm_capture_close(struct snd_pcm_substream *substream)
736{
737 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
738
739 gus->pcm_cap_substream = NULL;
740 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ);
741 return 0;
742}
743
744static int snd_gf1_pcm_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
745{
746 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
747 uinfo->count = 2;
748 uinfo->value.integer.min = 0;
749 uinfo->value.integer.max = 127;
750 return 0;
751}
752
753static int snd_gf1_pcm_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
754{
755 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
756 unsigned long flags;
757
758 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
759 ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1;
760 ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1;
761 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
762 return 0;
763}
764
765static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
766{
767 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
768 unsigned long flags;
769 int change;
770 unsigned int idx;
771 unsigned short val1, val2, vol;
772 struct gus_pcm_private *pcmp;
773 struct snd_gus_voice *pvoice;
774
775 val1 = ucontrol->value.integer.value[0] & 127;
776 val2 = ucontrol->value.integer.value[1] & 127;
777 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
778 change = val1 != gus->gf1.pcm_volume_level_left1 ||
779 val2 != gus->gf1.pcm_volume_level_right1;
780 gus->gf1.pcm_volume_level_left1 = val1;
781 gus->gf1.pcm_volume_level_right1 = val2;
782 gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4;
783 gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4;
784 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
785
786 spin_lock_irqsave(&gus->voice_alloc, flags);
787 for (idx = 0; idx < 32; idx++) {
788 pvoice = &gus->gf1.voices[idx];
789 if (!pvoice->pcm)
790 continue;
791 pcmp = pvoice->private_data;
792 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
793 continue;
794
795 spin_lock(&gus->reg_lock);
796 snd_gf1_select_voice(gus, pvoice->number);
797 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
798 vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
799 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
800 pcmp->final_volume = 1;
801 spin_unlock(&gus->reg_lock);
802 }
803 spin_unlock_irqrestore(&gus->voice_alloc, flags);
804 return change;
805}
806
807static const struct snd_kcontrol_new snd_gf1_pcm_volume_control =
808{
809 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
810 .name = "PCM Playback Volume",
811 .info = snd_gf1_pcm_volume_info,
812 .get = snd_gf1_pcm_volume_get,
813 .put = snd_gf1_pcm_volume_put
814};
815
816static const struct snd_kcontrol_new snd_gf1_pcm_volume_control1 =
817{
818 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
819 .name = "GPCM Playback Volume",
820 .info = snd_gf1_pcm_volume_info,
821 .get = snd_gf1_pcm_volume_get,
822 .put = snd_gf1_pcm_volume_put
823};
824
825static const struct snd_pcm_ops snd_gf1_pcm_playback_ops = {
826 .open = snd_gf1_pcm_playback_open,
827 .close = snd_gf1_pcm_playback_close,
828 .hw_params = snd_gf1_pcm_playback_hw_params,
829 .hw_free = snd_gf1_pcm_playback_hw_free,
830 .prepare = snd_gf1_pcm_playback_prepare,
831 .trigger = snd_gf1_pcm_playback_trigger,
832 .pointer = snd_gf1_pcm_playback_pointer,
833 .copy_user = snd_gf1_pcm_playback_copy,
834 .copy_kernel = snd_gf1_pcm_playback_copy_kernel,
835 .fill_silence = snd_gf1_pcm_playback_silence,
836};
837
838static const struct snd_pcm_ops snd_gf1_pcm_capture_ops = {
839 .open = snd_gf1_pcm_capture_open,
840 .close = snd_gf1_pcm_capture_close,
841 .hw_params = snd_gf1_pcm_capture_hw_params,
842 .prepare = snd_gf1_pcm_capture_prepare,
843 .trigger = snd_gf1_pcm_capture_trigger,
844 .pointer = snd_gf1_pcm_capture_pointer,
845};
846
847int snd_gf1_pcm_new(struct snd_gus_card *gus, int pcm_dev, int control_index)
848{
849 struct snd_card *card;
850 struct snd_kcontrol *kctl;
851 struct snd_pcm *pcm;
852 struct snd_pcm_substream *substream;
853 int capture, err;
854
855 card = gus->card;
856 capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0;
857 err = snd_pcm_new(card,
858 gus->interwave ? "AMD InterWave" : "GF1",
859 pcm_dev,
860 gus->gf1.pcm_channels / 2,
861 capture,
862 &pcm);
863 if (err < 0)
864 return err;
865 pcm->private_data = gus;
866
867 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops);
868
869 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
870 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
871 card->dev,
872 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024);
873
874 pcm->info_flags = 0;
875 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
876 if (capture) {
877 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_gf1_pcm_capture_ops);
878 if (gus->gf1.dma2 == gus->gf1.dma1)
879 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
880 snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
881 SNDRV_DMA_TYPE_DEV, card->dev,
882 64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024);
883 }
884 strcpy(pcm->name, pcm->id);
885 if (gus->interwave) {
886 sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A');
887 }
888 strcat(pcm->name, " (synth)");
889 gus->pcm = pcm;
890
891 if (gus->codec_flag)
892 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus);
893 else
894 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus);
895 err = snd_ctl_add(card, kctl);
896 if (err < 0)
897 return err;
898 kctl->id.index = control_index;
899
900 return 0;
901}
902
903
