1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
4 * Routines for control of GF1 chip (PCM things)
6 * InterWave chips supports interleaved DMA, but this feature isn't used in
9 * This code emulates autoinit DMA transfer for playback, recording by GF1
10 * chip doesn't support autoinit DMA.
14 #include <linux/slab.h>
15 #include <linux/sched/signal.h>
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"
25 #define SNDRV_GF1_PCM_RATE 48000
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)
31 struct gus_pcm_private {
32 struct snd_gus_card * gus;
33 struct snd_pcm_substream *substream;
36 struct snd_gus_voice *pvoices[2];
39 unsigned char voice_ctrl, ramp_ctrl;
42 unsigned int block_size;
43 unsigned int dma_size;
44 wait_queue_head_t sleep;
49 static void snd_gf1_pcm_block_change_ack(struct snd_gus_card * gus, void *private_data)
51 struct gus_pcm_private *pcmp = private_data;
54 atomic_dec(&pcmp->dma_count);
55 wake_up(&pcmp->sleep);
59 static int snd_gf1_pcm_block_change(struct snd_pcm_substream *substream,
64 struct snd_gf1_dma_block block;
65 struct snd_pcm_runtime *runtime = substream->runtime;
66 struct gus_pcm_private *pcmp = runtime->private_data;
71 snd_printk(KERN_DEBUG "block change - offset = 0x%x, count = 0x%x\n",
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;
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);
91 static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
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;
97 unsigned char voice_ctrl, ramp_ctrl;
99 unsigned int curr, begin, end;
104 spin_lock_irqsave(&pcmp->lock, flags);
105 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
106 spin_unlock_irqrestore(&pcmp->lock, flags);
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 /* enable WAVE IRQ */
114 voice_ctrl = snd_pcm_format_width(runtime->format) == 16 ? 0x24 : 0x20;
115 /* enable RAMP IRQ + rollover */
117 if (pcmp->blocks == 1) {
118 voice_ctrl |= 0x08; /* loop enable */
119 ramp_ctrl &= ~0x04; /* disable rollover */
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;
127 snd_printk(KERN_DEBUG "init: curr=0x%x, begin=0x%x, end=0x%x, "
128 "ctrl=0x%x, ramp=0x%x, rate=0x%x\n",
129 curr, begin, end, voice_ctrl, ramp_ctrl, rate);
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) {
147 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
149 spin_unlock_irqrestore(&gus->reg_lock, flags);
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); /* deactivate voice */
156 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
160 if (!gus->gf1.enh_mode) {
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; /* disable IRQ for next voice */
168 spin_unlock_irqrestore(&gus->reg_lock, flags);
171 static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus,
172 struct snd_gus_voice *pvoice)
174 struct gus_pcm_private * pcmp;
175 struct snd_pcm_runtime *runtime;
176 unsigned char voice_ctrl, ramp_ctrl;
178 unsigned int end, step;
180 if (!pvoice->private_data) {
181 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
182 snd_gf1_smart_stop_voice(gus, pvoice->number);
185 pcmp = pvoice->private_data;
187 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
188 snd_gf1_smart_stop_voice(gus, pvoice->number);
192 runtime = pcmp->substream->runtime;
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;
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);
208 pcmp->bpos %= pcmp->blocks;
209 if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */
210 voice_ctrl |= 0x08; /* enable loop */
212 ramp_ctrl |= 0x04; /* enable rollover */
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;
218 if (!pcmp->final_volume) {
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);
229 if (!gus->gf1.enh_mode) {
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);
239 spin_unlock(&gus->reg_lock);
241 snd_pcm_period_elapsed(pcmp->substream);
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);
250 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size);
256 static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus,
257 struct snd_gus_voice * pvoice)
261 struct gus_pcm_private *pcmp = pvoice->private_data;
263 /* stop ramp, but leave rollover bit untouched */
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);
271 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
273 /* load real volume - better precision */
274 cvoice = pcmp->pvoices[0] == pvoice ? 0 : 1;
275 if (pcmp->substream == NULL)
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);
285 static void snd_gf1_pcm_volume_change(struct snd_gus_card * gus)
289 static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf,
290 unsigned int pos, unsigned int count,
298 "poke block; buf = 0x%x, pos = %i, count = %i, port = 0x%x\n",
299 (int)buf, pos, count, gus->gf1.port);
303 if (len > 512) /* limit, to allow IRQ */
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);
311 outb(SNDRV_GF1_GW_DRAM_IO16, GUSP(gus, GF1REGSEL));
312 outsw(GUSP(gus, GF1DATALOW), buf, len >> 1);
314 outsb(GUSP(gus, DRAM), buf, len);
316 spin_unlock_irqrestore(&gus->reg_lock, flags);
320 invert = invert ? 0x80 : 0x00;
324 snd_gf1_poke(gus, pos++, *buf++);
325 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
329 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
332 if (count > 0 && !in_interrupt()) {
333 schedule_timeout_interruptible(1);
334 if (signal_pending(current))
341 static int get_bpos(struct gus_pcm_private *pcmp, int voice, unsigned int pos,
344 unsigned int bpos = pos + (voice * (pcmp->dma_size / 2));
345 if (snd_BUG_ON(bpos > pcmp->dma_size))
347 if (snd_BUG_ON(bpos + len > pcmp->dma_size))
352 static int playback_copy_ack(struct snd_pcm_substream *substream,
353 unsigned int bpos, unsigned int len)
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;
361 return snd_gf1_pcm_block_change(substream, bpos,
362 pcmp->memory + bpos, len);
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);
370 static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream,
371 int voice, unsigned long pos,
372 void __user *src, unsigned long count)
374 struct snd_pcm_runtime *runtime = substream->runtime;
375 struct gus_pcm_private *pcmp = runtime->private_data;
376 unsigned int len = count;
379 bpos = get_bpos(pcmp, voice, pos, len);
382 if (copy_from_user(runtime->dma_area + bpos, src, len))
384 return playback_copy_ack(substream, bpos, len);
387 static int snd_gf1_pcm_playback_copy_kernel(struct snd_pcm_substream *substream,
388 int voice, unsigned long pos,
389 void *src, unsigned long count)
391 struct snd_pcm_runtime *runtime = substream->runtime;
392 struct gus_pcm_private *pcmp = runtime->private_data;
393 unsigned int len = count;
396 bpos = get_bpos(pcmp, voice, pos, len);
399 memcpy(runtime->dma_area + bpos, src, len);
400 return playback_copy_ack(substream, bpos, len);
403 static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream,
404 int voice, unsigned long pos,
407 struct snd_pcm_runtime *runtime = substream->runtime;
408 struct gus_pcm_private *pcmp = runtime->private_data;
409 unsigned int len = count;
412 bpos = get_bpos(pcmp, voice, pos, len);
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);
420 static int snd_gf1_pcm_playback_hw_params(struct snd_pcm_substream *substream,
421 struct snd_pcm_hw_params *hw_params)
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;
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);
433 if ((block = snd_gf1_mem_alloc(&gus->gf1.mem_alloc,
434 SNDRV_GF1_MEM_OWNER_DRIVER,
436 runtime->dma_bytes, 1, 32,
439 pcmp->memory = block->ptr;
441 pcmp->voices = params_channels(hw_params);
442 if (pcmp->pvoices[0] == NULL) {
443 if ((pcmp->pvoices[0] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL)
445 pcmp->pvoices[0]->handler_wave = snd_gf1_pcm_interrupt_wave;
446 pcmp->pvoices[0]->handler_volume = snd_gf1_pcm_interrupt_volume;
447 pcmp->pvoices[0]->volume_change = snd_gf1_pcm_volume_change;
448 pcmp->pvoices[0]->private_data = pcmp;
450 if (pcmp->voices > 1 && pcmp->pvoices[1] == NULL) {
451 if ((pcmp->pvoices[1] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL)
453 pcmp->pvoices[1]->handler_wave = snd_gf1_pcm_interrupt_wave;
454 pcmp->pvoices[1]->handler_volume = snd_gf1_pcm_interrupt_volume;
455 pcmp->pvoices[1]->volume_change = snd_gf1_pcm_volume_change;
456 pcmp->pvoices[1]->private_data = pcmp;
457 } else if (pcmp->voices == 1) {
458 if (pcmp->pvoices[1]) {
459 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
460 pcmp->pvoices[1] = NULL;
466 static int snd_gf1_pcm_playback_hw_free(struct snd_pcm_substream *substream)
468 struct snd_pcm_runtime *runtime = substream->runtime;
469 struct gus_pcm_private *pcmp = runtime->private_data;
471 if (pcmp->pvoices[0]) {
472 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[0]);
473 pcmp->pvoices[0] = NULL;
475 if (pcmp->pvoices[1]) {
476 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
477 pcmp->pvoices[1] = NULL;
479 if (pcmp->memory > 0) {
480 snd_gf1_mem_free(&pcmp->gus->gf1.mem_alloc, pcmp->memory);
486 static int snd_gf1_pcm_playback_prepare(struct snd_pcm_substream *substream)
488 struct snd_pcm_runtime *runtime = substream->runtime;
489 struct gus_pcm_private *pcmp = runtime->private_data;
492 pcmp->dma_size = snd_pcm_lib_buffer_bytes(substream);
493 pcmp->block_size = snd_pcm_lib_period_bytes(substream);
494 pcmp->blocks = pcmp->dma_size / pcmp->block_size;
498 static int snd_gf1_pcm_playback_trigger(struct snd_pcm_substream *substream,
501 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
502 struct snd_pcm_runtime *runtime = substream->runtime;
503 struct gus_pcm_private *pcmp = runtime->private_data;
506 if (cmd == SNDRV_PCM_TRIGGER_START) {
507 snd_gf1_pcm_trigger_up(substream);
508 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
509 spin_lock(&pcmp->lock);
510 pcmp->flags &= ~SNDRV_GF1_PCM_PFLG_ACTIVE;
511 spin_unlock(&pcmp->lock);
512 voice = pcmp->pvoices[0]->number;
513 snd_gf1_stop_voices(gus, voice, voice);
514 if (pcmp->pvoices[1]) {
515 voice = pcmp->pvoices[1]->number;
516 snd_gf1_stop_voices(gus, voice, voice);
524 static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *substream)
526 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
527 struct snd_pcm_runtime *runtime = substream->runtime;
528 struct gus_pcm_private *pcmp = runtime->private_data;
530 unsigned char voice_ctrl;
533 spin_lock(&gus->reg_lock);
534 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
535 snd_gf1_select_voice(gus, pcmp->pvoices[0]->number);
536 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
537 pos = (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4) - pcmp->memory;
538 if (substream->runtime->channels > 1)
540 pos = bytes_to_frames(runtime, pos);
542 spin_unlock(&gus->reg_lock);
546 static const struct snd_ratnum clock = {
553 static const struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
558 static int snd_gf1_pcm_capture_hw_params(struct snd_pcm_substream *substream,
559 struct snd_pcm_hw_params *hw_params)
561 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
563 gus->c_dma_size = params_buffer_bytes(hw_params);
564 gus->c_period_size = params_period_bytes(hw_params);
566 gus->gf1.pcm_rcntrl_reg = 0x21; /* IRQ at end, enable & start */
567 if (params_channels(hw_params) > 1)
568 gus->gf1.pcm_rcntrl_reg |= 2;
569 if (gus->gf1.dma2 > 3)
570 gus->gf1.pcm_rcntrl_reg |= 4;
571 if (snd_pcm_format_unsigned(params_format(hw_params)))
572 gus->gf1.pcm_rcntrl_reg |= 0x80;
576 static int snd_gf1_pcm_capture_prepare(struct snd_pcm_substream *substream)
578 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
579 struct snd_pcm_runtime *runtime = substream->runtime;
581 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RECORD_RATE, runtime->rate_den - 2);
582 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */
583 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */
584 snd_dma_program(gus->gf1.dma2, runtime->dma_addr, gus->c_period_size, DMA_MODE_READ);
588 static int snd_gf1_pcm_capture_trigger(struct snd_pcm_substream *substream,
591 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
594 if (cmd == SNDRV_PCM_TRIGGER_START) {
595 val = gus->gf1.pcm_rcntrl_reg;
596 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
602 spin_lock(&gus->reg_lock);
603 snd_gf1_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, val);
604 snd_gf1_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
605 spin_unlock(&gus->reg_lock);
609 static snd_pcm_uframes_t snd_gf1_pcm_capture_pointer(struct snd_pcm_substream *substream)
611 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
612 int pos = snd_dma_pointer(gus->gf1.dma2, gus->c_period_size);
613 pos = bytes_to_frames(substream->runtime, (gus->c_pos + pos) % gus->c_dma_size);
617 static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus)
619 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */
620 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */
621 if (gus->pcm_cap_substream != NULL) {
622 snd_gf1_pcm_capture_prepare(gus->pcm_cap_substream);
623 snd_gf1_pcm_capture_trigger(gus->pcm_cap_substream, SNDRV_PCM_TRIGGER_START);
624 gus->c_pos += gus->c_period_size;
625 snd_pcm_period_elapsed(gus->pcm_cap_substream);
629 static const struct snd_pcm_hardware snd_gf1_pcm_playback =
631 .info = SNDRV_PCM_INFO_NONINTERLEAVED,
632 .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
633 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
634 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
639 .buffer_bytes_max = (128*1024),
640 .period_bytes_min = 64,
641 .period_bytes_max = (128*1024),
647 static const struct snd_pcm_hardware snd_gf1_pcm_capture =
649 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
650 SNDRV_PCM_INFO_MMAP_VALID),
651 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8,
652 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100,
657 .buffer_bytes_max = (128*1024),
658 .period_bytes_min = 64,
659 .period_bytes_max = (128*1024),
665 static void snd_gf1_pcm_playback_free(struct snd_pcm_runtime *runtime)
667 kfree(runtime->private_data);
670 static int snd_gf1_pcm_playback_open(struct snd_pcm_substream *substream)
672 struct gus_pcm_private *pcmp;
673 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
674 struct snd_pcm_runtime *runtime = substream->runtime;
677 pcmp = kzalloc(sizeof(*pcmp), GFP_KERNEL);
681 spin_lock_init(&pcmp->lock);
682 init_waitqueue_head(&pcmp->sleep);
683 atomic_set(&pcmp->dma_count, 0);
685 runtime->private_data = pcmp;
686 runtime->private_free = snd_gf1_pcm_playback_free;
689 printk(KERN_DEBUG "playback.buffer = 0x%lx, gf1.pcm_buffer = 0x%lx\n",
690 (long) pcm->playback.buffer, (long) gus->gf1.pcm_buffer);
692 if ((err = snd_gf1_dma_init(gus)) < 0)
694 pcmp->flags = SNDRV_GF1_PCM_PFLG_NONE;
695 pcmp->substream = substream;
696 runtime->hw = snd_gf1_pcm_playback;
697 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.buffer_bytes_max);
698 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.period_bytes_max);
699 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
703 static int snd_gf1_pcm_playback_close(struct snd_pcm_substream *substream)
705 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
706 struct snd_pcm_runtime *runtime = substream->runtime;
707 struct gus_pcm_private *pcmp = runtime->private_data;
709 if (!wait_event_timeout(pcmp->sleep, (atomic_read(&pcmp->dma_count) <= 0), 2*HZ))
710 snd_printk(KERN_ERR "gf1 pcm - serious DMA problem\n");
712 snd_gf1_dma_done(gus);
716 static int snd_gf1_pcm_capture_open(struct snd_pcm_substream *substream)
718 struct snd_pcm_runtime *runtime = substream->runtime;
719 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
721 gus->gf1.interrupt_handler_dma_read = snd_gf1_pcm_interrupt_dma_read;
722 gus->pcm_cap_substream = substream;
723 substream->runtime->hw = snd_gf1_pcm_capture;
724 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.buffer_bytes_max);
725 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.period_bytes_max);
726 snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
727 &hw_constraints_clocks);
731 static int snd_gf1_pcm_capture_close(struct snd_pcm_substream *substream)
733 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
735 gus->pcm_cap_substream = NULL;
736 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ);
740 static int snd_gf1_pcm_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
742 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
744 uinfo->value.integer.min = 0;
745 uinfo->value.integer.max = 127;
749 static int snd_gf1_pcm_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
751 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
754 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
755 ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1;
756 ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1;
757 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
761 static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
763 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
767 unsigned short val1, val2, vol;
768 struct gus_pcm_private *pcmp;
769 struct snd_gus_voice *pvoice;
771 val1 = ucontrol->value.integer.value[0] & 127;
772 val2 = ucontrol->value.integer.value[1] & 127;
773 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
774 change = val1 != gus->gf1.pcm_volume_level_left1 ||
775 val2 != gus->gf1.pcm_volume_level_right1;
776 gus->gf1.pcm_volume_level_left1 = val1;
777 gus->gf1.pcm_volume_level_right1 = val2;
778 gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4;
779 gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4;
780 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
782 spin_lock_irqsave(&gus->voice_alloc, flags);
783 for (idx = 0; idx < 32; idx++) {
784 pvoice = &gus->gf1.voices[idx];
787 pcmp = pvoice->private_data;
788 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
790 /* load real volume - better precision */
791 spin_lock(&gus->reg_lock);
792 snd_gf1_select_voice(gus, pvoice->number);
793 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
794 vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
795 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
796 pcmp->final_volume = 1;
797 spin_unlock(&gus->reg_lock);
799 spin_unlock_irqrestore(&gus->voice_alloc, flags);
803 static const struct snd_kcontrol_new snd_gf1_pcm_volume_control =
805 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
806 .name = "PCM Playback Volume",
807 .info = snd_gf1_pcm_volume_info,
808 .get = snd_gf1_pcm_volume_get,
809 .put = snd_gf1_pcm_volume_put
812 static const struct snd_kcontrol_new snd_gf1_pcm_volume_control1 =
814 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
815 .name = "GPCM Playback Volume",
816 .info = snd_gf1_pcm_volume_info,
817 .get = snd_gf1_pcm_volume_get,
818 .put = snd_gf1_pcm_volume_put
821 static const struct snd_pcm_ops snd_gf1_pcm_playback_ops = {
822 .open = snd_gf1_pcm_playback_open,
823 .close = snd_gf1_pcm_playback_close,
824 .hw_params = snd_gf1_pcm_playback_hw_params,
825 .hw_free = snd_gf1_pcm_playback_hw_free,
826 .prepare = snd_gf1_pcm_playback_prepare,
827 .trigger = snd_gf1_pcm_playback_trigger,
828 .pointer = snd_gf1_pcm_playback_pointer,
829 .copy_user = snd_gf1_pcm_playback_copy,
830 .copy_kernel = snd_gf1_pcm_playback_copy_kernel,
831 .fill_silence = snd_gf1_pcm_playback_silence,
834 static const struct snd_pcm_ops snd_gf1_pcm_capture_ops = {
835 .open = snd_gf1_pcm_capture_open,
836 .close = snd_gf1_pcm_capture_close,
837 .hw_params = snd_gf1_pcm_capture_hw_params,
838 .prepare = snd_gf1_pcm_capture_prepare,
839 .trigger = snd_gf1_pcm_capture_trigger,
840 .pointer = snd_gf1_pcm_capture_pointer,
843 int snd_gf1_pcm_new(struct snd_gus_card *gus, int pcm_dev, int control_index)
845 struct snd_card *card;
846 struct snd_kcontrol *kctl;
848 struct snd_pcm_substream *substream;
852 capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0;
853 err = snd_pcm_new(card,
854 gus->interwave ? "AMD InterWave" : "GF1",
856 gus->gf1.pcm_channels / 2,
861 pcm->private_data = gus;
863 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops);
865 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
866 snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
868 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024);
871 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
873 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_gf1_pcm_capture_ops);
874 if (gus->gf1.dma2 == gus->gf1.dma1)
875 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
876 snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
877 SNDRV_DMA_TYPE_DEV, card->dev,
878 64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024);
880 strcpy(pcm->name, pcm->id);
881 if (gus->interwave) {
882 sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A');
884 strcat(pcm->name, " (synth)");
888 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus);
890 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus);
891 if ((err = snd_ctl_add(card, kctl)) < 0)
893 kctl->id.index = control_index;