2 * Copyright (c) by Jaroslav Kysela <perex@suse.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
28 #include <sound/driver.h>
30 #include <linux/slab.h>
31 #include <sound/core.h>
32 #include <sound/control.h>
33 #include <sound/gus.h>
34 #include <sound/pcm_params.h>
35 #include "gus_tables.h"
39 #define SNDRV_GF1_PCM_RATE 48000
41 #define SNDRV_GF1_PCM_PFLG_NONE 0
42 #define SNDRV_GF1_PCM_PFLG_ACTIVE (1<<0)
43 #define SNDRV_GF1_PCM_PFLG_NEUTRAL (2<<0)
45 struct gus_pcm_private {
46 struct snd_gus_card * gus;
47 struct snd_pcm_substream *substream;
50 struct snd_gus_voice *pvoices[2];
53 unsigned char voice_ctrl, ramp_ctrl;
56 unsigned int block_size;
57 unsigned int dma_size;
58 wait_queue_head_t sleep;
63 static int snd_gf1_pcm_use_dma = 1;
65 static void snd_gf1_pcm_block_change_ack(struct snd_gus_card * gus, void *private_data)
67 struct gus_pcm_private *pcmp = private_data;
70 atomic_dec(&pcmp->dma_count);
71 wake_up(&pcmp->sleep);
75 static int snd_gf1_pcm_block_change(struct snd_pcm_substream *substream,
80 struct snd_gf1_dma_block block;
81 struct snd_pcm_runtime *runtime = substream->runtime;
82 struct gus_pcm_private *pcmp = runtime->private_data;
86 // snd_printk("block change - offset = 0x%x, count = 0x%x\n", offset, count);
87 memset(&block, 0, sizeof(block));
88 block.cmd = SNDRV_GF1_DMA_IRQ;
89 if (snd_pcm_format_unsigned(runtime->format))
90 block.cmd |= SNDRV_GF1_DMA_UNSIGNED;
91 if (snd_pcm_format_width(runtime->format) == 16)
92 block.cmd |= SNDRV_GF1_DMA_16BIT;
93 block.addr = addr & ~31;
94 block.buffer = runtime->dma_area + offset;
95 block.buf_addr = runtime->dma_addr + offset;
97 block.private_data = pcmp;
98 block.ack = snd_gf1_pcm_block_change_ack;
99 if (!snd_gf1_dma_transfer_block(pcmp->gus, &block, 0, 0))
100 atomic_inc(&pcmp->dma_count);
104 static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
106 struct snd_pcm_runtime *runtime = substream->runtime;
107 struct gus_pcm_private *pcmp = runtime->private_data;
108 struct snd_gus_card * gus = pcmp->gus;
110 unsigned char voice_ctrl, ramp_ctrl;
112 unsigned int curr, begin, end;
117 if (substream == NULL)
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;
141 // snd_printk("init: curr=0x%x, begin=0x%x, end=0x%x, ctrl=0x%x, ramp=0x%x, rate=0x%x\n", curr, begin, end, voice_ctrl, ramp_ctrl, rate);
142 pan = runtime->channels == 2 ? (!voice ? 1 : 14) : 8;
143 vol = !voice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
144 spin_lock_irqsave(&gus->reg_lock, flags);
145 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
146 snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, pan);
147 snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, rate);
148 snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, begin << 4, voice_ctrl & 4);
149 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
150 snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, curr << 4, voice_ctrl & 4);
151 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME << 4);
152 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0x2f);
153 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET);
154 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, vol >> 8);
155 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
156 if (!gus->gf1.enh_mode) {
158 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
160 spin_unlock_irqrestore(&gus->reg_lock, flags);
162 spin_lock_irqsave(&gus->reg_lock, flags);
163 for (voice = 0; voice < pcmp->voices; voice++) {
164 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
165 if (gus->gf1.enh_mode)
166 snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, 0x00); /* deactivate voice */
167 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
171 if (!gus->gf1.enh_mode) {
173 for (voice = 0; voice < pcmp->voices; voice++) {
174 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
175 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
176 voice_ctrl &= ~0x20; /* disable IRQ for next voice */
179 spin_unlock_irqrestore(&gus->reg_lock, flags);
182 static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus,
183 struct snd_gus_voice *pvoice)
185 struct gus_pcm_private * pcmp;
186 struct snd_pcm_runtime *runtime;
187 unsigned char voice_ctrl, ramp_ctrl;
189 unsigned int end, step;
191 if (!pvoice->private_data) {
192 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
193 snd_gf1_smart_stop_voice(gus, pvoice->number);
196 pcmp = pvoice->private_data;
198 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
199 snd_gf1_smart_stop_voice(gus, pvoice->number);
203 runtime = pcmp->substream->runtime;
205 spin_lock(&gus->reg_lock);
206 snd_gf1_select_voice(gus, pvoice->number);
207 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b;
208 ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03;
210 snd_gf1_select_voice(gus, pvoice->number);
211 printk("position = 0x%x\n", (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
212 snd_gf1_select_voice(gus, pcmp->pvoices[1]->number);
213 printk("position = 0x%x\n", (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
214 snd_gf1_select_voice(gus, pvoice->number);
217 pcmp->bpos %= pcmp->blocks;
218 if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */
219 voice_ctrl |= 0x08; /* enable loop */
221 ramp_ctrl |= 0x04; /* enable rollover */
223 end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels);
224 end -= voice_ctrl & 4 ? 2 : 1;
225 step = pcmp->dma_size / runtime->channels;
227 if (!pcmp->final_volume) {
231 for (idx = 0; idx < pcmp->voices; idx++, end += step) {
232 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
233 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
234 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
235 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
238 if (!gus->gf1.enh_mode) {
241 for (idx = 0; idx < pcmp->voices; idx++) {
242 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
243 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
244 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
248 spin_unlock(&gus->reg_lock);
250 snd_pcm_period_elapsed(pcmp->substream);
252 if ((runtime->flags & SNDRV_PCM_FLG_MMAP) &&
253 *runtime->state == SNDRV_PCM_STATE_RUNNING) {
254 end = pcmp->bpos * pcmp->block_size;
255 if (runtime->channels > 1) {
256 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + (end / 2), pcmp->block_size / 2);
257 snd_gf1_pcm_block_change(pcmp->substream, end + (pcmp->block_size / 2), pcmp->memory + (pcmp->dma_size / 2) + (end / 2), pcmp->block_size / 2);
259 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size);
265 static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus,
266 struct snd_gus_voice * pvoice)
270 struct gus_pcm_private *pcmp = pvoice->private_data;
272 /* stop ramp, but leave rollover bit untouched */
273 spin_lock(&gus->reg_lock);
274 snd_gf1_select_voice(gus, pvoice->number);
275 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
276 spin_unlock(&gus->reg_lock);
280 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
282 /* load real volume - better precision */
283 cvoice = pcmp->pvoices[0] == pvoice ? 0 : 1;
284 if (pcmp->substream == NULL)
286 vol = !cvoice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
287 spin_lock(&gus->reg_lock);
288 snd_gf1_select_voice(gus, pvoice->number);
289 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
290 pcmp->final_volume = 1;
291 spin_unlock(&gus->reg_lock);
294 static void snd_gf1_pcm_volume_change(struct snd_gus_card * gus)
298 static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf,
299 unsigned int pos, unsigned int count,
305 // printk("poke block; buf = 0x%x, pos = %i, count = %i, port = 0x%x\n", (int)buf, pos, count, gus->gf1.port);
308 if (len > 512) /* limit, to allow IRQ */
311 if (gus->interwave) {
312 spin_lock_irqsave(&gus->reg_lock, flags);
313 snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01 | (invert ? 0x08 : 0x00));
314 snd_gf1_dram_addr(gus, pos);
316 outb(SNDRV_GF1_GW_DRAM_IO16, GUSP(gus, GF1REGSEL));
317 outsw(GUSP(gus, GF1DATALOW), buf, len >> 1);
319 outsb(GUSP(gus, DRAM), buf, len);
321 spin_unlock_irqrestore(&gus->reg_lock, flags);
325 invert = invert ? 0x80 : 0x00;
329 snd_gf1_poke(gus, pos++, *buf++);
330 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
334 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
337 if (count > 0 && !in_interrupt()) {
338 schedule_timeout_interruptible(1);
339 if (signal_pending(current))
346 static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream,
348 snd_pcm_uframes_t pos,
350 snd_pcm_uframes_t count)
352 struct snd_pcm_runtime *runtime = substream->runtime;
353 struct gus_pcm_private *pcmp = runtime->private_data;
354 unsigned int bpos, len;
356 bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2));
357 len = samples_to_bytes(runtime, count);
358 snd_assert(bpos <= pcmp->dma_size, return -EIO);
359 snd_assert(bpos + len <= pcmp->dma_size, return -EIO);
360 if (copy_from_user(runtime->dma_area + bpos, src, len))
362 if (snd_gf1_pcm_use_dma && len > 32) {
363 return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len);
365 struct snd_gus_card *gus = pcmp->gus;
366 int err, w16, invert;
368 w16 = (snd_pcm_format_width(runtime->format) == 16);
369 invert = snd_pcm_format_unsigned(runtime->format);
370 if ((err = snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, pcmp->memory + bpos, len, w16, invert)) < 0)
376 static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream,
378 snd_pcm_uframes_t pos,
379 snd_pcm_uframes_t count)
381 struct snd_pcm_runtime *runtime = substream->runtime;
382 struct gus_pcm_private *pcmp = runtime->private_data;
383 unsigned int bpos, len;
385 bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2));
386 len = samples_to_bytes(runtime, count);
387 snd_assert(bpos <= pcmp->dma_size, return -EIO);
388 snd_assert(bpos + len <= pcmp->dma_size, return -EIO);
389 snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos, count);
390 if (snd_gf1_pcm_use_dma && len > 32) {
391 return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len);
393 struct snd_gus_card *gus = pcmp->gus;
394 int err, w16, invert;
396 w16 = (snd_pcm_format_width(runtime->format) == 16);
397 invert = snd_pcm_format_unsigned(runtime->format);
398 if ((err = snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, pcmp->memory + bpos, len, w16, invert)) < 0)
404 static int snd_gf1_pcm_playback_hw_params(struct snd_pcm_substream *substream,
405 struct snd_pcm_hw_params *hw_params)
407 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
408 struct snd_pcm_runtime *runtime = substream->runtime;
409 struct gus_pcm_private *pcmp = runtime->private_data;
412 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
414 if (err > 0) { /* change */
415 struct snd_gf1_mem_block *block;
416 if (pcmp->memory > 0) {
417 snd_gf1_mem_free(&gus->gf1.mem_alloc, pcmp->memory);
420 if ((block = snd_gf1_mem_alloc(&gus->gf1.mem_alloc,
421 SNDRV_GF1_MEM_OWNER_DRIVER,
423 runtime->dma_bytes, 1, 32,
426 pcmp->memory = block->ptr;
428 pcmp->voices = params_channels(hw_params);
429 if (pcmp->pvoices[0] == NULL) {
430 if ((pcmp->pvoices[0] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL)
432 pcmp->pvoices[0]->handler_wave = snd_gf1_pcm_interrupt_wave;
433 pcmp->pvoices[0]->handler_volume = snd_gf1_pcm_interrupt_volume;
434 pcmp->pvoices[0]->volume_change = snd_gf1_pcm_volume_change;
435 pcmp->pvoices[0]->private_data = pcmp;
437 if (pcmp->voices > 1 && pcmp->pvoices[1] == NULL) {
438 if ((pcmp->pvoices[1] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL)
440 pcmp->pvoices[1]->handler_wave = snd_gf1_pcm_interrupt_wave;
441 pcmp->pvoices[1]->handler_volume = snd_gf1_pcm_interrupt_volume;
442 pcmp->pvoices[1]->volume_change = snd_gf1_pcm_volume_change;
443 pcmp->pvoices[1]->private_data = pcmp;
444 } else if (pcmp->voices == 1) {
445 if (pcmp->pvoices[1]) {
446 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
447 pcmp->pvoices[1] = NULL;
453 static int snd_gf1_pcm_playback_hw_free(struct snd_pcm_substream *substream)
455 struct snd_pcm_runtime *runtime = substream->runtime;
456 struct gus_pcm_private *pcmp = runtime->private_data;
458 snd_pcm_lib_free_pages(substream);
459 if (pcmp->pvoices[0]) {
460 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[0]);
461 pcmp->pvoices[0] = NULL;
463 if (pcmp->pvoices[1]) {
464 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
465 pcmp->pvoices[1] = NULL;
467 if (pcmp->memory > 0) {
468 snd_gf1_mem_free(&pcmp->gus->gf1.mem_alloc, pcmp->memory);
474 static int snd_gf1_pcm_playback_prepare(struct snd_pcm_substream *substream)
476 struct snd_pcm_runtime *runtime = substream->runtime;
477 struct gus_pcm_private *pcmp = runtime->private_data;
480 pcmp->dma_size = snd_pcm_lib_buffer_bytes(substream);
481 pcmp->block_size = snd_pcm_lib_period_bytes(substream);
482 pcmp->blocks = pcmp->dma_size / pcmp->block_size;
486 static int snd_gf1_pcm_playback_trigger(struct snd_pcm_substream *substream,
489 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
490 struct snd_pcm_runtime *runtime = substream->runtime;
491 struct gus_pcm_private *pcmp = runtime->private_data;
494 if (cmd == SNDRV_PCM_TRIGGER_START) {
495 snd_gf1_pcm_trigger_up(substream);
496 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
497 spin_lock(&pcmp->lock);
498 pcmp->flags &= ~SNDRV_GF1_PCM_PFLG_ACTIVE;
499 spin_unlock(&pcmp->lock);
500 voice = pcmp->pvoices[0]->number;
501 snd_gf1_stop_voices(gus, voice, voice);
502 if (pcmp->pvoices[1]) {
503 voice = pcmp->pvoices[1]->number;
504 snd_gf1_stop_voices(gus, voice, voice);
512 static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *substream)
514 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
515 struct snd_pcm_runtime *runtime = substream->runtime;
516 struct gus_pcm_private *pcmp = runtime->private_data;
518 unsigned char voice_ctrl;
521 spin_lock(&gus->reg_lock);
522 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
523 snd_gf1_select_voice(gus, pcmp->pvoices[0]->number);
524 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
525 pos = (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4) - pcmp->memory;
526 if (substream->runtime->channels > 1)
528 pos = bytes_to_frames(runtime, pos);
530 spin_unlock(&gus->reg_lock);
534 static struct snd_ratnum clock = {
541 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
546 static int snd_gf1_pcm_capture_hw_params(struct snd_pcm_substream *substream,
547 struct snd_pcm_hw_params *hw_params)
549 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
551 gus->c_dma_size = params_buffer_bytes(hw_params);
552 gus->c_period_size = params_period_bytes(hw_params);
554 gus->gf1.pcm_rcntrl_reg = 0x21; /* IRQ at end, enable & start */
555 if (params_channels(hw_params) > 1)
556 gus->gf1.pcm_rcntrl_reg |= 2;
557 if (gus->gf1.dma2 > 3)
558 gus->gf1.pcm_rcntrl_reg |= 4;
559 if (snd_pcm_format_unsigned(params_format(hw_params)))
560 gus->gf1.pcm_rcntrl_reg |= 0x80;
561 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
564 static int snd_gf1_pcm_capture_hw_free(struct snd_pcm_substream *substream)
566 return snd_pcm_lib_free_pages(substream);
569 static int snd_gf1_pcm_capture_prepare(struct snd_pcm_substream *substream)
571 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
572 struct snd_pcm_runtime *runtime = substream->runtime;
574 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RECORD_RATE, runtime->rate_den - 2);
575 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */
576 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */
577 snd_dma_program(gus->gf1.dma2, runtime->dma_addr, gus->c_period_size, DMA_MODE_READ);
581 static int snd_gf1_pcm_capture_trigger(struct snd_pcm_substream *substream,
584 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
587 if (cmd == SNDRV_PCM_TRIGGER_START) {
588 val = gus->gf1.pcm_rcntrl_reg;
589 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
595 spin_lock(&gus->reg_lock);
596 snd_gf1_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, val);
597 snd_gf1_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
598 spin_unlock(&gus->reg_lock);
602 static snd_pcm_uframes_t snd_gf1_pcm_capture_pointer(struct snd_pcm_substream *substream)
604 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
605 int pos = snd_dma_pointer(gus->gf1.dma2, gus->c_period_size);
606 pos = bytes_to_frames(substream->runtime, (gus->c_pos + pos) % gus->c_dma_size);
610 static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus)
612 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */
613 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */
614 if (gus->pcm_cap_substream != NULL) {
615 snd_gf1_pcm_capture_prepare(gus->pcm_cap_substream);
616 snd_gf1_pcm_capture_trigger(gus->pcm_cap_substream, SNDRV_PCM_TRIGGER_START);
617 gus->c_pos += gus->c_period_size;
618 snd_pcm_period_elapsed(gus->pcm_cap_substream);
622 static struct snd_pcm_hardware snd_gf1_pcm_playback =
624 .info = SNDRV_PCM_INFO_NONINTERLEAVED,
625 .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
626 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
627 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
632 .buffer_bytes_max = (128*1024),
633 .period_bytes_min = 64,
634 .period_bytes_max = (128*1024),
640 static struct snd_pcm_hardware snd_gf1_pcm_capture =
642 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
643 SNDRV_PCM_INFO_MMAP_VALID),
644 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8,
645 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100,
650 .buffer_bytes_max = (128*1024),
651 .period_bytes_min = 64,
652 .period_bytes_max = (128*1024),
658 static void snd_gf1_pcm_playback_free(struct snd_pcm_runtime *runtime)
660 kfree(runtime->private_data);
663 static int snd_gf1_pcm_playback_open(struct snd_pcm_substream *substream)
665 struct gus_pcm_private *pcmp;
666 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
667 struct snd_pcm_runtime *runtime = substream->runtime;
670 pcmp = kzalloc(sizeof(*pcmp), GFP_KERNEL);
674 spin_lock_init(&pcmp->lock);
675 init_waitqueue_head(&pcmp->sleep);
676 atomic_set(&pcmp->dma_count, 0);
678 runtime->private_data = pcmp;
679 runtime->private_free = snd_gf1_pcm_playback_free;
682 printk("playback.buffer = 0x%lx, gf1.pcm_buffer = 0x%lx\n", (long) pcm->playback.buffer, (long) gus->gf1.pcm_buffer);
684 if ((err = snd_gf1_dma_init(gus)) < 0)
686 pcmp->flags = SNDRV_GF1_PCM_PFLG_NONE;
687 pcmp->substream = substream;
688 runtime->hw = snd_gf1_pcm_playback;
689 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.buffer_bytes_max);
690 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.period_bytes_max);
691 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
695 static int snd_gf1_pcm_playback_close(struct snd_pcm_substream *substream)
697 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
698 struct snd_pcm_runtime *runtime = substream->runtime;
699 struct gus_pcm_private *pcmp = runtime->private_data;
701 if (!wait_event_timeout(pcmp->sleep, (atomic_read(&pcmp->dma_count) <= 0), 2*HZ))
702 snd_printk(KERN_ERR "gf1 pcm - serious DMA problem\n");
704 snd_gf1_dma_done(gus);
708 static int snd_gf1_pcm_capture_open(struct snd_pcm_substream *substream)
710 struct snd_pcm_runtime *runtime = substream->runtime;
711 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
713 gus->gf1.interrupt_handler_dma_read = snd_gf1_pcm_interrupt_dma_read;
714 gus->pcm_cap_substream = substream;
715 substream->runtime->hw = snd_gf1_pcm_capture;
716 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.buffer_bytes_max);
717 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.period_bytes_max);
718 snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
719 &hw_constraints_clocks);
723 static int snd_gf1_pcm_capture_close(struct snd_pcm_substream *substream)
725 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
727 gus->pcm_cap_substream = NULL;
728 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ);
732 static int snd_gf1_pcm_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
734 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
736 uinfo->value.integer.min = 0;
737 uinfo->value.integer.max = 127;
741 static int snd_gf1_pcm_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
743 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
746 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
747 ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1;
748 ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1;
749 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
753 static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
755 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
759 unsigned short val1, val2, vol;
760 struct gus_pcm_private *pcmp;
761 struct snd_gus_voice *pvoice;
763 val1 = ucontrol->value.integer.value[0] & 127;
764 val2 = ucontrol->value.integer.value[1] & 127;
765 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
766 change = val1 != gus->gf1.pcm_volume_level_left1 ||
767 val2 != gus->gf1.pcm_volume_level_right1;
768 gus->gf1.pcm_volume_level_left1 = val1;
769 gus->gf1.pcm_volume_level_right1 = val2;
770 gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4;
771 gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4;
772 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
774 spin_lock_irqsave(&gus->voice_alloc, flags);
775 for (idx = 0; idx < 32; idx++) {
776 pvoice = &gus->gf1.voices[idx];
779 pcmp = pvoice->private_data;
780 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
782 /* load real volume - better precision */
783 spin_lock_irqsave(&gus->reg_lock, flags);
784 snd_gf1_select_voice(gus, pvoice->number);
785 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
786 vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
787 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
788 pcmp->final_volume = 1;
789 spin_unlock_irqrestore(&gus->reg_lock, flags);
791 spin_unlock_irqrestore(&gus->voice_alloc, flags);
795 static struct snd_kcontrol_new snd_gf1_pcm_volume_control =
797 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
798 .name = "PCM Playback Volume",
799 .info = snd_gf1_pcm_volume_info,
800 .get = snd_gf1_pcm_volume_get,
801 .put = snd_gf1_pcm_volume_put
804 static struct snd_kcontrol_new snd_gf1_pcm_volume_control1 =
806 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
807 .name = "GPCM Playback Volume",
808 .info = snd_gf1_pcm_volume_info,
809 .get = snd_gf1_pcm_volume_get,
810 .put = snd_gf1_pcm_volume_put
813 static struct snd_pcm_ops snd_gf1_pcm_playback_ops = {
814 .open = snd_gf1_pcm_playback_open,
815 .close = snd_gf1_pcm_playback_close,
816 .ioctl = snd_pcm_lib_ioctl,
817 .hw_params = snd_gf1_pcm_playback_hw_params,
818 .hw_free = snd_gf1_pcm_playback_hw_free,
819 .prepare = snd_gf1_pcm_playback_prepare,
820 .trigger = snd_gf1_pcm_playback_trigger,
821 .pointer = snd_gf1_pcm_playback_pointer,
822 .copy = snd_gf1_pcm_playback_copy,
823 .silence = snd_gf1_pcm_playback_silence,
826 static struct snd_pcm_ops snd_gf1_pcm_capture_ops = {
827 .open = snd_gf1_pcm_capture_open,
828 .close = snd_gf1_pcm_capture_close,
829 .ioctl = snd_pcm_lib_ioctl,
830 .hw_params = snd_gf1_pcm_capture_hw_params,
831 .hw_free = snd_gf1_pcm_capture_hw_free,
832 .prepare = snd_gf1_pcm_capture_prepare,
833 .trigger = snd_gf1_pcm_capture_trigger,
834 .pointer = snd_gf1_pcm_capture_pointer,
837 int snd_gf1_pcm_new(struct snd_gus_card * gus, int pcm_dev, int control_index, struct snd_pcm ** rpcm)
839 struct snd_card *card;
840 struct snd_kcontrol *kctl;
842 struct snd_pcm_substream *substream;
848 capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0;
849 err = snd_pcm_new(card,
850 gus->interwave ? "AMD InterWave" : "GF1",
852 gus->gf1.pcm_channels / 2,
857 pcm->private_data = gus;
859 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops);
861 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
862 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV,
864 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024);
867 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
869 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_gf1_pcm_capture_ops);
870 if (gus->gf1.dma2 == gus->gf1.dma1)
871 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
872 snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
873 SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(),
874 64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024);
876 strcpy(pcm->name, pcm->id);
877 if (gus->interwave) {
878 sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A');
880 strcat(pcm->name, " (synth)");
884 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus);
886 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus);
887 if ((err = snd_ctl_add(card, kctl)) < 0)
889 kctl->id.index = control_index;