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"
37 #define chip_t snd_gus_card_t
41 #define SNDRV_GF1_PCM_RATE 48000
43 #define SNDRV_GF1_PCM_PFLG_NONE 0
44 #define SNDRV_GF1_PCM_PFLG_ACTIVE (1<<0)
45 #define SNDRV_GF1_PCM_PFLG_NEUTRAL (2<<0)
49 snd_pcm_substream_t * substream;
52 snd_gus_voice_t *pvoices[2];
55 unsigned char voice_ctrl, ramp_ctrl;
58 unsigned int block_size;
59 unsigned int dma_size;
60 wait_queue_head_t sleep;
65 static int snd_gf1_pcm_use_dma = 1;
67 static void snd_gf1_pcm_block_change_ack(snd_gus_card_t * gus, void *private_data)
69 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, private_data, return);
72 atomic_dec(&pcmp->dma_count);
73 wake_up(&pcmp->sleep);
77 static int snd_gf1_pcm_block_change(snd_pcm_substream_t * substream,
82 snd_gf1_dma_block_t block;
83 snd_pcm_runtime_t *runtime = substream->runtime;
84 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return -ENXIO);
88 // snd_printk("block change - offset = 0x%x, count = 0x%x\n", offset, count);
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(snd_pcm_substream_t * substream)
108 snd_pcm_runtime_t *runtime = substream->runtime;
109 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return);
110 snd_gus_card_t * gus = pcmp->gus;
112 unsigned char voice_ctrl, ramp_ctrl;
114 unsigned int curr, begin, end;
119 if (substream == NULL)
121 spin_lock_irqsave(&pcmp->lock, flags);
122 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
123 spin_unlock_irqrestore(&pcmp->lock, flags);
126 pcmp->flags |= SNDRV_GF1_PCM_PFLG_ACTIVE;
127 pcmp->final_volume = 0;
128 spin_unlock_irqrestore(&pcmp->lock, flags);
129 rate = snd_gf1_translate_freq(gus, runtime->rate << 4);
130 /* enable WAVE IRQ */
131 voice_ctrl = snd_pcm_format_width(runtime->format) == 16 ? 0x24 : 0x20;
132 /* enable RAMP IRQ + rollover */
134 if (pcmp->blocks == 1) {
135 voice_ctrl |= 0x08; /* loop enable */
136 ramp_ctrl &= ~0x04; /* disable rollover */
138 for (voice = 0; voice < pcmp->voices; voice++) {
139 begin = pcmp->memory + voice * (pcmp->dma_size / runtime->channels);
140 curr = begin + (pcmp->bpos * pcmp->block_size) / runtime->channels;
141 end = curr + (pcmp->block_size / runtime->channels);
142 end -= snd_pcm_format_width(runtime->format) == 16 ? 2 : 1;
143 // 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);
144 pan = runtime->channels == 2 ? (!voice ? 1 : 14) : 8;
145 vol = !voice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
146 spin_lock_irqsave(&gus->reg_lock, flags);
147 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
148 snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, pan);
149 snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, rate);
150 snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, begin << 4, voice_ctrl & 4);
151 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
152 snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, curr << 4, voice_ctrl & 4);
153 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME << 4);
154 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0x2f);
155 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET);
156 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, vol >> 8);
157 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
158 if (!gus->gf1.enh_mode) {
160 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
162 spin_unlock_irqrestore(&gus->reg_lock, flags);
164 spin_lock_irqsave(&gus->reg_lock, flags);
165 for (voice = 0; voice < pcmp->voices; voice++) {
166 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
167 if (gus->gf1.enh_mode)
168 snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, 0x00); /* deactivate voice */
169 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
173 if (!gus->gf1.enh_mode) {
175 for (voice = 0; voice < pcmp->voices; voice++) {
176 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
177 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
178 voice_ctrl &= ~0x20; /* disable IRQ for next voice */
181 spin_unlock_irqrestore(&gus->reg_lock, flags);
184 static void snd_gf1_pcm_interrupt_wave(snd_gus_card_t * gus, snd_gus_voice_t *pvoice)
186 gus_pcm_private_t * pcmp;
187 snd_pcm_runtime_t * runtime;
188 unsigned char voice_ctrl, ramp_ctrl;
190 unsigned int end, step;
192 if (!pvoice->private_data) {
193 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
194 snd_gf1_smart_stop_voice(gus, pvoice->number);
197 pcmp = snd_magic_cast(gus_pcm_private_t, pvoice->private_data, return);
199 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
200 snd_gf1_smart_stop_voice(gus, pvoice->number);
204 runtime = pcmp->substream->runtime;
206 spin_lock(&gus->reg_lock);
207 snd_gf1_select_voice(gus, pvoice->number);
208 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b;
209 ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03;
211 snd_gf1_select_voice(gus, pvoice->number);
212 printk("position = 0x%x\n", (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
213 snd_gf1_select_voice(gus, pcmp->pvoices[1]->number);
214 printk("position = 0x%x\n", (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
215 snd_gf1_select_voice(gus, pvoice->number);
218 pcmp->bpos %= pcmp->blocks;
219 if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */
220 voice_ctrl |= 0x08; /* enable loop */
222 ramp_ctrl |= 0x04; /* enable rollover */
224 end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels);
225 end -= voice_ctrl & 4 ? 2 : 1;
226 step = pcmp->dma_size / runtime->channels;
228 if (!pcmp->final_volume) {
232 for (idx = 0; idx < pcmp->voices; idx++, end += step) {
233 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
234 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
235 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
236 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
239 if (!gus->gf1.enh_mode) {
242 for (idx = 0; idx < pcmp->voices; idx++) {
243 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
244 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
245 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
249 spin_unlock(&gus->reg_lock);
251 snd_pcm_period_elapsed(pcmp->substream);
253 if ((runtime->flags & SNDRV_PCM_FLG_MMAP) &&
254 *runtime->state == SNDRV_PCM_STATE_RUNNING) {
255 end = pcmp->bpos * pcmp->block_size;
256 if (runtime->channels > 1) {
257 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + (end / 2), pcmp->block_size / 2);
258 snd_gf1_pcm_block_change(pcmp->substream, end + (pcmp->block_size / 2), pcmp->memory + (pcmp->dma_size / 2) + (end / 2), pcmp->block_size / 2);
260 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size);
266 static void snd_gf1_pcm_interrupt_volume(snd_gus_card_t * gus, snd_gus_voice_t * pvoice)
270 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, pvoice->private_data, return);
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(snd_gus_card_t * gus)
298 static int snd_gf1_pcm_poke_block(snd_gus_card_t *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()) {
339 if (signal_pending(current))
346 static int snd_gf1_pcm_playback_copy(snd_pcm_substream_t *substream,
348 snd_pcm_uframes_t pos,
350 snd_pcm_uframes_t count)
352 snd_pcm_runtime_t *runtime = substream->runtime;
353 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return -ENXIO);
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 snd_gus_card_t *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(snd_pcm_substream_t *substream,
378 snd_pcm_uframes_t pos,
379 snd_pcm_uframes_t count)
381 snd_pcm_runtime_t *runtime = substream->runtime;
382 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return -ENXIO);
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 snd_gus_card_t *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(snd_pcm_substream_t * substream,
405 snd_pcm_hw_params_t * hw_params)
407 snd_gus_card_t *gus = snd_pcm_substream_chip(substream);
408 snd_pcm_runtime_t *runtime = substream->runtime;
409 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return -ENXIO);
412 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
414 if (err > 0) { /* change */
415 snd_gf1_mem_block_t *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(snd_pcm_substream_t * substream)
455 snd_pcm_runtime_t *runtime = substream->runtime;
456 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return -ENXIO);
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(snd_pcm_substream_t * substream)
476 snd_pcm_runtime_t *runtime = substream->runtime;
477 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return -ENXIO);
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(snd_pcm_substream_t * substream,
489 snd_gus_card_t *gus = snd_pcm_substream_chip(substream);
490 snd_pcm_runtime_t *runtime = substream->runtime;
491 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return -ENXIO);
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(snd_pcm_substream_t * substream)
514 snd_gus_card_t *gus = snd_pcm_substream_chip(substream);
515 snd_pcm_runtime_t *runtime = substream->runtime;
516 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return -ENXIO);
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 ratnum_t clock = {
541 static snd_pcm_hw_constraint_ratnums_t hw_constraints_clocks = {
546 static int snd_gf1_pcm_capture_hw_params(snd_pcm_substream_t * substream,
547 snd_pcm_hw_params_t * hw_params)
549 snd_gus_card_t *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(snd_pcm_substream_t * substream)
566 return snd_pcm_lib_free_pages(substream);
569 static int snd_gf1_pcm_capture_prepare(snd_pcm_substream_t * substream)
571 snd_gus_card_t *gus = snd_pcm_substream_chip(substream);
572 snd_pcm_runtime_t *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(snd_pcm_substream_t * substream,
584 snd_gus_card_t *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(snd_pcm_substream_t * substream)
604 snd_gus_card_t *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(snd_gus_card_t * 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 snd_pcm_hardware_t 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 snd_pcm_hardware_t 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(snd_pcm_runtime_t *runtime)
660 gus_pcm_private_t * pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return);
661 snd_magic_kfree(pcmp);
664 static int snd_gf1_pcm_playback_open(snd_pcm_substream_t *substream)
666 gus_pcm_private_t *pcmp;
667 snd_gus_card_t *gus = snd_pcm_substream_chip(substream);
668 snd_pcm_runtime_t *runtime = substream->runtime;
671 pcmp = snd_magic_kcalloc(gus_pcm_private_t, 0, GFP_KERNEL);
675 spin_lock_init(&pcmp->lock);
676 init_waitqueue_head(&pcmp->sleep);
677 atomic_set(&pcmp->dma_count, 0);
679 runtime->private_data = pcmp;
680 runtime->private_free = snd_gf1_pcm_playback_free;
683 printk("playback.buffer = 0x%lx, gf1.pcm_buffer = 0x%lx\n", (long) pcm->playback.buffer, (long) gus->gf1.pcm_buffer);
685 if ((err = snd_gf1_dma_init(gus)) < 0)
687 pcmp->flags = SNDRV_GF1_PCM_PFLG_NONE;
688 pcmp->substream = substream;
689 runtime->hw = snd_gf1_pcm_playback;
690 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.buffer_bytes_max);
691 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.period_bytes_max);
692 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
696 static int snd_gf1_pcm_playback_close(snd_pcm_substream_t * substream)
698 snd_gus_card_t *gus = snd_pcm_substream_chip(substream);
699 snd_pcm_runtime_t *runtime = substream->runtime;
700 gus_pcm_private_t *pcmp = snd_magic_cast(gus_pcm_private_t, runtime->private_data, return -ENXIO);
701 unsigned long jiffies_old;
703 jiffies_old = jiffies;
704 while (atomic_read(&pcmp->dma_count) > 0) {
705 interruptible_sleep_on_timeout(&pcmp->sleep, 1);
706 if ((signed long)(jiffies - jiffies_old) > 2*HZ) {
707 snd_printk("gf1 pcm - serious DMA problem\n");
711 snd_gf1_dma_done(gus);
715 static int snd_gf1_pcm_capture_open(snd_pcm_substream_t * substream)
717 snd_pcm_runtime_t *runtime = substream->runtime;
718 snd_gus_card_t *gus = snd_pcm_substream_chip(substream);
720 gus->gf1.interrupt_handler_dma_read = snd_gf1_pcm_interrupt_dma_read;
721 gus->pcm_cap_substream = substream;
722 substream->runtime->hw = snd_gf1_pcm_capture;
723 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.buffer_bytes_max);
724 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.period_bytes_max);
725 snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
726 &hw_constraints_clocks);
730 static int snd_gf1_pcm_capture_close(snd_pcm_substream_t * substream)
732 snd_gus_card_t *gus = snd_pcm_substream_chip(substream);
734 gus->pcm_cap_substream = NULL;
735 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ);
739 static void snd_gf1_pcm_free(snd_pcm_t *pcm)
741 snd_gus_card_t *gus = snd_magic_cast(snd_gus_card_t, pcm->private_data, return);
743 snd_pcm_lib_preallocate_free_for_all(pcm);
746 static int snd_gf1_pcm_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
748 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
750 uinfo->value.integer.min = 0;
751 uinfo->value.integer.max = 127;
755 static int snd_gf1_pcm_volume_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
757 snd_gus_card_t *gus = snd_kcontrol_chip(kcontrol);
760 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
761 ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1;
762 ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1;
763 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
767 static int snd_gf1_pcm_volume_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
769 snd_gus_card_t *gus = snd_kcontrol_chip(kcontrol);
773 unsigned short val1, val2, vol;
774 gus_pcm_private_t *pcmp;
775 snd_gus_voice_t *pvoice;
777 val1 = ucontrol->value.integer.value[0] & 127;
778 val2 = ucontrol->value.integer.value[1] & 127;
779 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
780 change = val1 != gus->gf1.pcm_volume_level_left1 ||
781 val2 != gus->gf1.pcm_volume_level_right1;
782 gus->gf1.pcm_volume_level_left1 = val1;
783 gus->gf1.pcm_volume_level_right1 = val2;
784 gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4;
785 gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4;
786 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
788 spin_lock_irqsave(&gus->voice_alloc, flags);
789 for (idx = 0; idx < 32; idx++) {
790 pvoice = &gus->gf1.voices[idx];
793 pcmp = snd_magic_cast(gus_pcm_private_t, pvoice->private_data, return -ENXIO);
794 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
796 /* load real volume - better precision */
797 spin_lock_irqsave(&gus->reg_lock, flags);
798 snd_gf1_select_voice(gus, pvoice->number);
799 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
800 vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
801 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
802 pcmp->final_volume = 1;
803 spin_unlock_irqrestore(&gus->reg_lock, flags);
805 spin_unlock_irqrestore(&gus->voice_alloc, flags);
809 static snd_kcontrol_new_t snd_gf1_pcm_volume_control =
811 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
812 .name = "PCM Playback Volume",
813 .info = snd_gf1_pcm_volume_info,
814 .get = snd_gf1_pcm_volume_get,
815 .put = snd_gf1_pcm_volume_put
818 static snd_kcontrol_new_t snd_gf1_pcm_volume_control1 =
820 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
821 .name = "GPCM Playback Volume",
822 .info = snd_gf1_pcm_volume_info,
823 .get = snd_gf1_pcm_volume_get,
824 .put = snd_gf1_pcm_volume_put
827 static snd_pcm_ops_t snd_gf1_pcm_playback_ops = {
828 .open = snd_gf1_pcm_playback_open,
829 .close = snd_gf1_pcm_playback_close,
830 .ioctl = snd_pcm_lib_ioctl,
831 .hw_params = snd_gf1_pcm_playback_hw_params,
832 .hw_free = snd_gf1_pcm_playback_hw_free,
833 .prepare = snd_gf1_pcm_playback_prepare,
834 .trigger = snd_gf1_pcm_playback_trigger,
835 .pointer = snd_gf1_pcm_playback_pointer,
836 .copy = snd_gf1_pcm_playback_copy,
837 .silence = snd_gf1_pcm_playback_silence,
840 static snd_pcm_ops_t snd_gf1_pcm_capture_ops = {
841 .open = snd_gf1_pcm_capture_open,
842 .close = snd_gf1_pcm_capture_close,
843 .ioctl = snd_pcm_lib_ioctl,
844 .hw_params = snd_gf1_pcm_capture_hw_params,
845 .hw_free = snd_gf1_pcm_capture_hw_free,
846 .prepare = snd_gf1_pcm_capture_prepare,
847 .trigger = snd_gf1_pcm_capture_trigger,
848 .pointer = snd_gf1_pcm_capture_pointer,
851 int snd_gf1_pcm_new(snd_gus_card_t * gus, int pcm_dev, int control_index, snd_pcm_t ** rpcm)
854 snd_kcontrol_t *kctl;
856 snd_pcm_substream_t *substream;
862 capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0;
863 err = snd_pcm_new(card,
864 gus->interwave ? "AMD InterWave" : "GF1",
866 gus->gf1.pcm_channels / 2,
871 pcm->private_data = gus;
872 pcm->private_free = snd_gf1_pcm_free;
874 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops);
876 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
877 snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV,
879 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024);
882 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
884 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_gf1_pcm_capture_ops);
885 if (gus->gf1.dma2 == gus->gf1.dma1)
886 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
887 snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
888 SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(),
889 64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024);
891 strcpy(pcm->name, pcm->id);
892 if (gus->interwave) {
893 sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A');
895 strcat(pcm->name, " (synth)");
899 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus);
901 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus);
902 if ((err = snd_ctl_add(card, kctl)) < 0)
904 kctl->id.index = control_index;