2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3 * Routines for control of GF1 chip (PCM things)
5 * InterWave chips supports interleaved DMA, but this feature isn't used in
8 * This code emulates autoinit DMA transfer for playback, recording by GF1
9 * chip doesn't support autoinit DMA.
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 #include <linux/slab.h>
30 #include <linux/sched/signal.h>
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"
40 #define SNDRV_GF1_PCM_RATE 48000
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)
46 struct gus_pcm_private {
47 struct snd_gus_card * gus;
48 struct snd_pcm_substream *substream;
51 struct snd_gus_voice *pvoices[2];
54 unsigned char voice_ctrl, ramp_ctrl;
57 unsigned int block_size;
58 unsigned int dma_size;
59 wait_queue_head_t sleep;
64 static void snd_gf1_pcm_block_change_ack(struct snd_gus_card * gus, void *private_data)
66 struct gus_pcm_private *pcmp = private_data;
69 atomic_dec(&pcmp->dma_count);
70 wake_up(&pcmp->sleep);
74 static int snd_gf1_pcm_block_change(struct snd_pcm_substream *substream,
79 struct snd_gf1_dma_block block;
80 struct snd_pcm_runtime *runtime = substream->runtime;
81 struct gus_pcm_private *pcmp = runtime->private_data;
86 snd_printk(KERN_DEBUG "block change - offset = 0x%x, count = 0x%x\n",
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;
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);
106 static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
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;
112 unsigned char voice_ctrl, ramp_ctrl;
114 unsigned int curr, begin, end;
119 spin_lock_irqsave(&pcmp->lock, flags);
120 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
121 spin_unlock_irqrestore(&pcmp->lock, flags);
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 /* enable WAVE IRQ */
129 voice_ctrl = snd_pcm_format_width(runtime->format) == 16 ? 0x24 : 0x20;
130 /* enable RAMP IRQ + rollover */
132 if (pcmp->blocks == 1) {
133 voice_ctrl |= 0x08; /* loop enable */
134 ramp_ctrl &= ~0x04; /* disable rollover */
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;
142 snd_printk(KERN_DEBUG "init: curr=0x%x, begin=0x%x, end=0x%x, "
143 "ctrl=0x%x, ramp=0x%x, rate=0x%x\n",
144 curr, begin, end, voice_ctrl, ramp_ctrl, rate);
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) {
162 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
164 spin_unlock_irqrestore(&gus->reg_lock, flags);
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); /* deactivate voice */
171 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
175 if (!gus->gf1.enh_mode) {
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; /* disable IRQ for next voice */
183 spin_unlock_irqrestore(&gus->reg_lock, flags);
186 static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus,
187 struct snd_gus_voice *pvoice)
189 struct gus_pcm_private * pcmp;
190 struct snd_pcm_runtime *runtime;
191 unsigned char voice_ctrl, ramp_ctrl;
193 unsigned int end, step;
195 if (!pvoice->private_data) {
196 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
197 snd_gf1_smart_stop_voice(gus, pvoice->number);
200 pcmp = pvoice->private_data;
202 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
203 snd_gf1_smart_stop_voice(gus, pvoice->number);
207 runtime = pcmp->substream->runtime;
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;
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);
223 pcmp->bpos %= pcmp->blocks;
224 if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */
225 voice_ctrl |= 0x08; /* enable loop */
227 ramp_ctrl |= 0x04; /* enable rollover */
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;
233 if (!pcmp->final_volume) {
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);
244 if (!gus->gf1.enh_mode) {
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);
254 spin_unlock(&gus->reg_lock);
256 snd_pcm_period_elapsed(pcmp->substream);
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);
265 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size);
271 static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus,
272 struct snd_gus_voice * pvoice)
276 struct gus_pcm_private *pcmp = pvoice->private_data;
278 /* stop ramp, but leave rollover bit untouched */
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);
286 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
288 /* load real volume - better precision */
289 cvoice = pcmp->pvoices[0] == pvoice ? 0 : 1;
290 if (pcmp->substream == NULL)
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);
300 static void snd_gf1_pcm_volume_change(struct snd_gus_card * gus)
304 static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf,
305 unsigned int pos, unsigned int count,
313 "poke block; buf = 0x%x, pos = %i, count = %i, port = 0x%x\n",
314 (int)buf, pos, count, gus->gf1.port);
318 if (len > 512) /* limit, to allow IRQ */
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);
326 outb(SNDRV_GF1_GW_DRAM_IO16, GUSP(gus, GF1REGSEL));
327 outsw(GUSP(gus, GF1DATALOW), buf, len >> 1);
329 outsb(GUSP(gus, DRAM), buf, len);
331 spin_unlock_irqrestore(&gus->reg_lock, flags);
335 invert = invert ? 0x80 : 0x00;
339 snd_gf1_poke(gus, pos++, *buf++);
340 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
344 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
347 if (count > 0 && !in_interrupt()) {
348 schedule_timeout_interruptible(1);
349 if (signal_pending(current))
356 static int get_bpos(struct gus_pcm_private *pcmp, int voice, unsigned int pos,
359 unsigned int bpos = pos + (voice * (pcmp->dma_size / 2));
360 if (snd_BUG_ON(bpos > pcmp->dma_size))
362 if (snd_BUG_ON(bpos + len > pcmp->dma_size))
367 static int playback_copy_ack(struct snd_pcm_substream *substream,
368 unsigned int bpos, unsigned int len)
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;
376 return snd_gf1_pcm_block_change(substream, bpos,
377 pcmp->memory + bpos, len);
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);
385 static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream,
386 int voice, unsigned long pos,
387 void __user *src, unsigned long count)
389 struct snd_pcm_runtime *runtime = substream->runtime;
390 struct gus_pcm_private *pcmp = runtime->private_data;
391 unsigned int len = count;
394 bpos = get_bpos(pcmp, voice, pos, len);
397 if (copy_from_user(runtime->dma_area + bpos, src, len))
399 return playback_copy_ack(substream, bpos, len);
402 static int snd_gf1_pcm_playback_copy_kernel(struct snd_pcm_substream *substream,
403 int voice, unsigned long pos,
404 void *src, unsigned long count)
406 struct snd_pcm_runtime *runtime = substream->runtime;
407 struct gus_pcm_private *pcmp = runtime->private_data;
408 unsigned int len = count;
411 bpos = get_bpos(pcmp, voice, pos, len);
414 memcpy(runtime->dma_area + bpos, src, len);
415 return playback_copy_ack(substream, bpos, len);
418 static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream,
419 int voice, unsigned long pos,
422 struct snd_pcm_runtime *runtime = substream->runtime;
423 struct gus_pcm_private *pcmp = runtime->private_data;
424 unsigned int len = count;
427 bpos = get_bpos(pcmp, voice, pos, len);
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);
435 static int snd_gf1_pcm_playback_hw_params(struct snd_pcm_substream *substream,
436 struct snd_pcm_hw_params *hw_params)
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;
443 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
445 if (err > 0) { /* change */
446 struct snd_gf1_mem_block *block;
447 if (pcmp->memory > 0) {
448 snd_gf1_mem_free(&gus->gf1.mem_alloc, pcmp->memory);
451 if ((block = snd_gf1_mem_alloc(&gus->gf1.mem_alloc,
452 SNDRV_GF1_MEM_OWNER_DRIVER,
454 runtime->dma_bytes, 1, 32,
457 pcmp->memory = block->ptr;
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)
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;
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)
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;
484 static int snd_gf1_pcm_playback_hw_free(struct snd_pcm_substream *substream)
486 struct snd_pcm_runtime *runtime = substream->runtime;
487 struct gus_pcm_private *pcmp = runtime->private_data;
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;
494 if (pcmp->pvoices[1]) {
495 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
496 pcmp->pvoices[1] = NULL;
498 if (pcmp->memory > 0) {
499 snd_gf1_mem_free(&pcmp->gus->gf1.mem_alloc, pcmp->memory);
505 static int snd_gf1_pcm_playback_prepare(struct snd_pcm_substream *substream)
507 struct snd_pcm_runtime *runtime = substream->runtime;
508 struct gus_pcm_private *pcmp = runtime->private_data;
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;
517 static int snd_gf1_pcm_playback_trigger(struct snd_pcm_substream *substream,
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;
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);
543 static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *substream)
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;
549 unsigned char voice_ctrl;
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)
559 pos = bytes_to_frames(runtime, pos);
561 spin_unlock(&gus->reg_lock);
565 static const struct snd_ratnum clock = {
572 static const struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
577 static int snd_gf1_pcm_capture_hw_params(struct snd_pcm_substream *substream,
578 struct snd_pcm_hw_params *hw_params)
580 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
582 gus->c_dma_size = params_buffer_bytes(hw_params);
583 gus->c_period_size = params_period_bytes(hw_params);
585 gus->gf1.pcm_rcntrl_reg = 0x21; /* IRQ at end, enable & start */
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));
595 static int snd_gf1_pcm_capture_hw_free(struct snd_pcm_substream *substream)
597 return snd_pcm_lib_free_pages(substream);
600 static int snd_gf1_pcm_capture_prepare(struct snd_pcm_substream *substream)
602 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
603 struct snd_pcm_runtime *runtime = substream->runtime;
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); /* disable sampling */
607 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */
608 snd_dma_program(gus->gf1.dma2, runtime->dma_addr, gus->c_period_size, DMA_MODE_READ);
612 static int snd_gf1_pcm_capture_trigger(struct snd_pcm_substream *substream,
615 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
618 if (cmd == SNDRV_PCM_TRIGGER_START) {
619 val = gus->gf1.pcm_rcntrl_reg;
620 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
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);
633 static snd_pcm_uframes_t snd_gf1_pcm_capture_pointer(struct snd_pcm_substream *substream)
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);
641 static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus)
643 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */
644 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */
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);
653 static const struct snd_pcm_hardware snd_gf1_pcm_playback =
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,
663 .buffer_bytes_max = (128*1024),
664 .period_bytes_min = 64,
665 .period_bytes_max = (128*1024),
671 static const struct snd_pcm_hardware snd_gf1_pcm_capture =
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,
681 .buffer_bytes_max = (128*1024),
682 .period_bytes_min = 64,
683 .period_bytes_max = (128*1024),
689 static void snd_gf1_pcm_playback_free(struct snd_pcm_runtime *runtime)
691 kfree(runtime->private_data);
694 static int snd_gf1_pcm_playback_open(struct snd_pcm_substream *substream)
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;
701 pcmp = kzalloc(sizeof(*pcmp), GFP_KERNEL);
705 spin_lock_init(&pcmp->lock);
706 init_waitqueue_head(&pcmp->sleep);
707 atomic_set(&pcmp->dma_count, 0);
709 runtime->private_data = pcmp;
710 runtime->private_free = snd_gf1_pcm_playback_free;
713 printk(KERN_DEBUG "playback.buffer = 0x%lx, gf1.pcm_buffer = 0x%lx\n",
714 (long) pcm->playback.buffer, (long) gus->gf1.pcm_buffer);
716 if ((err = snd_gf1_dma_init(gus)) < 0)
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);
727 static int snd_gf1_pcm_playback_close(struct snd_pcm_substream *substream)
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;
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");
736 snd_gf1_dma_done(gus);
740 static int snd_gf1_pcm_capture_open(struct snd_pcm_substream *substream)
742 struct snd_pcm_runtime *runtime = substream->runtime;
743 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
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);
755 static int snd_gf1_pcm_capture_close(struct snd_pcm_substream *substream)
757 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
759 gus->pcm_cap_substream = NULL;
760 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ);
764 static int snd_gf1_pcm_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
766 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
768 uinfo->value.integer.min = 0;
769 uinfo->value.integer.max = 127;
773 static int snd_gf1_pcm_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
775 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
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);
785 static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
787 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
791 unsigned short val1, val2, vol;
792 struct gus_pcm_private *pcmp;
793 struct snd_gus_voice *pvoice;
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);
806 spin_lock_irqsave(&gus->voice_alloc, flags);
807 for (idx = 0; idx < 32; idx++) {
808 pvoice = &gus->gf1.voices[idx];
811 pcmp = pvoice->private_data;
812 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
814 /* load real volume - better precision */
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);
823 spin_unlock_irqrestore(&gus->voice_alloc, flags);
827 static const struct snd_kcontrol_new snd_gf1_pcm_volume_control =
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
836 static const struct snd_kcontrol_new snd_gf1_pcm_volume_control1 =
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
845 static 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,
859 static 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,
870 int snd_gf1_pcm_new(struct snd_gus_card *gus, int pcm_dev, int control_index)
872 struct snd_card *card;
873 struct snd_kcontrol *kctl;
875 struct snd_pcm_substream *substream;
879 capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0;
880 err = snd_pcm_new(card,
881 gus->interwave ? "AMD InterWave" : "GF1",
883 gus->gf1.pcm_channels / 2,
888 pcm->private_data = gus;
890 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops);
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,
895 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024);
898 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
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);
907 strcpy(pcm->name, pcm->id);
908 if (gus->interwave) {
909 sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A');
911 strcat(pcm->name, " (synth)");
915 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus);
917 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus);
918 if ((err = snd_ctl_add(card, kctl)) < 0)
920 kctl->id.index = control_index;