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sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched...
[mirror_ubuntu-artful-kernel.git] / sound / isa / gus / gus_pcm.c
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1da177e4 1/*
c1017a4c 2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
1da177e4
LT		 3 * Routines for control of GF1 chip (PCM things)
4 *
5 * InterWave chips supports interleaved DMA, but this feature isn't used in
6 * this code.
7 *
8 * This code emulates autoinit DMA transfer for playback, recording by GF1
9 * chip doesn't support autoinit DMA.
10 *
11 *
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.
16 *
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.
21 *
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
25 *
26 */
27
1da177e4
LT		 28#include <asm/dma.h>
29#include <linux/slab.h>
174cd4b1
IM		 30#include <linux/sched/signal.h>
31
1da177e4
LT		 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"
37
38/* maximum rate */
39
40#define SNDRV_GF1_PCM_RATE 48000
41
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)
45
5e2da206
TI		 46struct gus_pcm_private {
47 struct snd_gus_card * gus;
48 struct snd_pcm_substream *substream;
1da177e4
LT		 49 spinlock_t lock;
50 unsigned int voices;
5e2da206 51 struct snd_gus_voice *pvoices[2];
1da177e4
LT		 52 unsigned int memory;
53 unsigned short flags;
54 unsigned char voice_ctrl, ramp_ctrl;
55 unsigned int bpos;
56 unsigned int blocks;
57 unsigned int block_size;
58 unsigned int dma_size;
59 wait_queue_head_t sleep;
60 atomic_t dma_count;
61 int final_volume;
5e2da206 62};
1da177e4
LT		 63
64static int snd_gf1_pcm_use_dma = 1;
65
5e2da206 66static void snd_gf1_pcm_block_change_ack(struct snd_gus_card * gus, void *private_data)
1da177e4 67{
5e2da206 68 struct gus_pcm_private *pcmp = private_data;
1da177e4
LT		 69
70 if (pcmp) {
71 atomic_dec(&pcmp->dma_count);
72 wake_up(&pcmp->sleep);
73 }
74}
75
5e2da206 76static int snd_gf1_pcm_block_change(struct snd_pcm_substream *substream,
1da177e4
LT		 77 unsigned int offset,
78 unsigned int addr,
79 unsigned int count)
80{
5e2da206
TI		 81 struct snd_gf1_dma_block block;
82 struct snd_pcm_runtime *runtime = substream->runtime;
83 struct gus_pcm_private *pcmp = runtime->private_data;
1da177e4
LT		 84
85 count += offset & 31;
86 offset &= ~31;
91f05060
TI		 87 /*
88 snd_printk(KERN_DEBUG "block change - offset = 0x%x, count = 0x%x\n",
89 offset, count);
90 */
1da177e4
LT		 91 memset(&block, 0, sizeof(block));
92 block.cmd = SNDRV_GF1_DMA_IRQ;
93 if (snd_pcm_format_unsigned(runtime->format))
94 block.cmd |= SNDRV_GF1_DMA_UNSIGNED;
95 if (snd_pcm_format_width(runtime->format) == 16)
96 block.cmd |= SNDRV_GF1_DMA_16BIT;
97 block.addr = addr & ~31;
98 block.buffer = runtime->dma_area + offset;
99 block.buf_addr = runtime->dma_addr + offset;
100 block.count = count;
101 block.private_data = pcmp;
102 block.ack = snd_gf1_pcm_block_change_ack;
103 if (!snd_gf1_dma_transfer_block(pcmp->gus, &block, 0, 0))
104 atomic_inc(&pcmp->dma_count);
105 return 0;
106}
107
5e2da206 108static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
1da177e4 109{
5e2da206
TI		 110 struct snd_pcm_runtime *runtime = substream->runtime;
111 struct gus_pcm_private *pcmp = runtime->private_data;
112 struct snd_gus_card * gus = pcmp->gus;
1da177e4
LT		 113 unsigned long flags;
114 unsigned char voice_ctrl, ramp_ctrl;
115 unsigned short rate;
116 unsigned int curr, begin, end;
117 unsigned short vol;
118 unsigned char pan;
119 unsigned int voice;
120
1da177e4
LT		 121 spin_lock_irqsave(&pcmp->lock, flags);
122 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
123 spin_unlock_irqrestore(&pcmp->lock, flags);
124 return;
125 }
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 */
133 ramp_ctrl = 0x24;
134 if (pcmp->blocks == 1) {
135 voice_ctrl |= 0x08; /* loop enable */
136 ramp_ctrl &= ~0x04; /* disable rollover */
137 }
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;
91f05060
TI		 143 /*
144 snd_printk(KERN_DEBUG "init: curr=0x%x, begin=0x%x, end=0x%x, "
145 "ctrl=0x%x, ramp=0x%x, rate=0x%x\n",
146 curr, begin, end, voice_ctrl, ramp_ctrl, rate);
147 */
1da177e4
LT		 148 pan = runtime->channels == 2 ? (!voice ? 1 : 14) : 8;
149 vol = !voice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
150 spin_lock_irqsave(&gus->reg_lock, flags);
151 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
152 snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, pan);
153 snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, rate);
154 snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, begin << 4, voice_ctrl & 4);
155 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
156 snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, curr << 4, voice_ctrl & 4);
157 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME << 4);
158 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0x2f);
159 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET);
160 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, vol >> 8);
161 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
162 if (!gus->gf1.enh_mode) {
163 snd_gf1_delay(gus);
164 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
165 }
166 spin_unlock_irqrestore(&gus->reg_lock, flags);
167 }
168 spin_lock_irqsave(&gus->reg_lock, flags);
169 for (voice = 0; voice < pcmp->voices; voice++) {
170 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
171 if (gus->gf1.enh_mode)
172 snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, 0x00); /* deactivate voice */
173 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
174 voice_ctrl &= ~0x20;
175 }
176 voice_ctrl |= 0x20;
177 if (!gus->gf1.enh_mode) {
178 snd_gf1_delay(gus);
179 for (voice = 0; voice < pcmp->voices; voice++) {
180 snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
181 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
182 voice_ctrl &= ~0x20; /* disable IRQ for next voice */
183 }
184 }
185 spin_unlock_irqrestore(&gus->reg_lock, flags);
186}
187
5e2da206
TI		 188static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus,
189 struct snd_gus_voice *pvoice)
1da177e4 190{
5e2da206
TI		 191 struct gus_pcm_private * pcmp;
192 struct snd_pcm_runtime *runtime;
1da177e4
LT		 193 unsigned char voice_ctrl, ramp_ctrl;
194 unsigned int idx;
195 unsigned int end, step;
196
197 if (!pvoice->private_data) {
198 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
199 snd_gf1_smart_stop_voice(gus, pvoice->number);
200 return;
201 }
202 pcmp = pvoice->private_data;
203 if (pcmp == NULL) {
204 snd_printd("snd_gf1_pcm: unknown wave irq?\n");
205 snd_gf1_smart_stop_voice(gus, pvoice->number);
206 return;
207 }
208 gus = pcmp->gus;
209 runtime = pcmp->substream->runtime;
210
211 spin_lock(&gus->reg_lock);
212 snd_gf1_select_voice(gus, pvoice->number);
213 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b;
214 ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03;
215#if 0
216 snd_gf1_select_voice(gus, pvoice->number);
91f05060
TI		 217 printk(KERN_DEBUG "position = 0x%x\n",
218 (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
1da177e4 219 snd_gf1_select_voice(gus, pcmp->pvoices[1]->number);
91f05060
TI		 220 printk(KERN_DEBUG "position = 0x%x\n",
221 (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
1da177e4
LT		 222 snd_gf1_select_voice(gus, pvoice->number);
223#endif
224 pcmp->bpos++;
225 pcmp->bpos %= pcmp->blocks;
226 if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */
227 voice_ctrl |= 0x08; /* enable loop */
228 } else {
229 ramp_ctrl |= 0x04; /* enable rollover */
230 }
231 end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels);
232 end -= voice_ctrl & 4 ? 2 : 1;
233 step = pcmp->dma_size / runtime->channels;
234 voice_ctrl |= 0x20;
235 if (!pcmp->final_volume) {
236 ramp_ctrl |= 0x20;
237 ramp_ctrl &= ~0x03;
238 }
239 for (idx = 0; idx < pcmp->voices; idx++, end += step) {
240 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
241 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
242 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
243 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
244 voice_ctrl &= ~0x20;
245 }
246 if (!gus->gf1.enh_mode) {
247 snd_gf1_delay(gus);
248 voice_ctrl |= 0x20;
249 for (idx = 0; idx < pcmp->voices; idx++) {
250 snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
251 snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
252 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
253 voice_ctrl &= ~0x20;
254 }
255 }
256 spin_unlock(&gus->reg_lock);
257
258 snd_pcm_period_elapsed(pcmp->substream);
259#if 0
260 if ((runtime->flags & SNDRV_PCM_FLG_MMAP) &&
261 *runtime->state == SNDRV_PCM_STATE_RUNNING) {
262 end = pcmp->bpos * pcmp->block_size;
263 if (runtime->channels > 1) {
264 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + (end / 2), pcmp->block_size / 2);
265 snd_gf1_pcm_block_change(pcmp->substream, end + (pcmp->block_size / 2), pcmp->memory + (pcmp->dma_size / 2) + (end / 2), pcmp->block_size / 2);
266 } else {
267 snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size);
268 }
269 }
270#endif
271}
272
5e2da206
TI		 273static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus,
274 struct snd_gus_voice * pvoice)
1da177e4
LT		 275{
276 unsigned short vol;
277 int cvoice;
5e2da206 278 struct gus_pcm_private *pcmp = pvoice->private_data;
1da177e4
LT		 279
280 /* stop ramp, but leave rollover bit untouched */
281 spin_lock(&gus->reg_lock);
282 snd_gf1_select_voice(gus, pvoice->number);
283 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
284 spin_unlock(&gus->reg_lock);
285 if (pcmp == NULL)
286 return;
287 /* are we active? */
288 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
289 return;
290 /* load real volume - better precision */
291 cvoice = pcmp->pvoices[0] == pvoice ? 0 : 1;
292 if (pcmp->substream == NULL)
293 return;
294 vol = !cvoice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
295 spin_lock(&gus->reg_lock);
296 snd_gf1_select_voice(gus, pvoice->number);
297 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
298 pcmp->final_volume = 1;
299 spin_unlock(&gus->reg_lock);
300}
301
5e2da206 302static void snd_gf1_pcm_volume_change(struct snd_gus_card * gus)
1da177e4
LT		 303{
304}
305
5e2da206 306static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf,
1da177e4
LT		 307 unsigned int pos, unsigned int count,
308 int w16, int invert)
309{
310 unsigned int len;
311 unsigned long flags;
312
91f05060
TI		 313 /*
314 printk(KERN_DEBUG
315 "poke block; buf = 0x%x, pos = %i, count = %i, port = 0x%x\n",
316 (int)buf, pos, count, gus->gf1.port);
317 */
1da177e4
LT		 318 while (count > 0) {
319 len = count;
320 if (len > 512) /* limit, to allow IRQ */
321 len = 512;
322 count -= len;
323 if (gus->interwave) {
324 spin_lock_irqsave(&gus->reg_lock, flags);
325 snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01 | (invert ? 0x08 : 0x00));
326 snd_gf1_dram_addr(gus, pos);
327 if (w16) {
328 outb(SNDRV_GF1_GW_DRAM_IO16, GUSP(gus, GF1REGSEL));
329 outsw(GUSP(gus, GF1DATALOW), buf, len >> 1);
330 } else {
331 outsb(GUSP(gus, DRAM), buf, len);
332 }
333 spin_unlock_irqrestore(&gus->reg_lock, flags);
334 buf += 512;
335 pos += 512;
336 } else {
337 invert = invert ? 0x80 : 0x00;
338 if (w16) {
339 len >>= 1;
340 while (len--) {
341 snd_gf1_poke(gus, pos++, *buf++);
342 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
343 }
344 } else {
345 while (len--)
346 snd_gf1_poke(gus, pos++, *buf++ ^ invert);
347 }
348 }
349 if (count > 0 && !in_interrupt()) {
8433a509 350 schedule_timeout_interruptible(1);
1da177e4
LT		 351 if (signal_pending(current))
352 return -EAGAIN;
353 }
354 }
355 return 0;
356}
357
5e2da206 358static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream,
1da177e4
LT		 359 int voice,
360 snd_pcm_uframes_t pos,
361 void __user *src,
362 snd_pcm_uframes_t count)
363{
5e2da206
TI		 364 struct snd_pcm_runtime *runtime = substream->runtime;
365 struct gus_pcm_private *pcmp = runtime->private_data;
1da177e4
LT		 366 unsigned int bpos, len;
367
368 bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2));
369 len = samples_to_bytes(runtime, count);
622207dc
TI		 370 if (snd_BUG_ON(bpos > pcmp->dma_size))
371 return -EIO;
372 if (snd_BUG_ON(bpos + len > pcmp->dma_size))
373 return -EIO;
1da177e4
LT		 374 if (copy_from_user(runtime->dma_area + bpos, src, len))
375 return -EFAULT;
376 if (snd_gf1_pcm_use_dma && len > 32) {
377 return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len);
378 } else {
5e2da206 379 struct snd_gus_card *gus = pcmp->gus;
1da177e4
LT		 380 int err, w16, invert;
381
382 w16 = (snd_pcm_format_width(runtime->format) == 16);
383 invert = snd_pcm_format_unsigned(runtime->format);
384 if ((err = snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, pcmp->memory + bpos, len, w16, invert)) < 0)
385 return err;
386 }
387 return 0;
388}
389
5e2da206 390static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream,
1da177e4
LT		 391 int voice,
392 snd_pcm_uframes_t pos,
393 snd_pcm_uframes_t count)
394{
5e2da206
TI		 395 struct snd_pcm_runtime *runtime = substream->runtime;
396 struct gus_pcm_private *pcmp = runtime->private_data;
1da177e4
LT		 397 unsigned int bpos, len;
398
399 bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2));
400 len = samples_to_bytes(runtime, count);
622207dc
TI		 401 if (snd_BUG_ON(bpos > pcmp->dma_size))
402 return -EIO;
403 if (snd_BUG_ON(bpos + len > pcmp->dma_size))
404 return -EIO;
1da177e4
LT		 405 snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos, count);
406 if (snd_gf1_pcm_use_dma && len > 32) {
407 return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len);
408 } else {
5e2da206 409 struct snd_gus_card *gus = pcmp->gus;
1da177e4
LT		 410 int err, w16, invert;
411
412 w16 = (snd_pcm_format_width(runtime->format) == 16);
413 invert = snd_pcm_format_unsigned(runtime->format);
414 if ((err = snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, pcmp->memory + bpos, len, w16, invert)) < 0)
415 return err;
416 }
417 return 0;
418}
419
5e2da206
TI		 420static int snd_gf1_pcm_playback_hw_params(struct snd_pcm_substream *substream,
421 struct snd_pcm_hw_params *hw_params)
1da177e4 422{
5e2da206
TI		 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;
1da177e4
LT		 426 int err;
427
428 if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
429 return err;
430 if (err > 0) { /* change */
5e2da206 431 struct snd_gf1_mem_block *block;
1da177e4
LT		 432 if (pcmp->memory > 0) {
433 snd_gf1_mem_free(&gus->gf1.mem_alloc, pcmp->memory);
434 pcmp->memory = 0;
435 }
436 if ((block = snd_gf1_mem_alloc(&gus->gf1.mem_alloc,
437 SNDRV_GF1_MEM_OWNER_DRIVER,
438 "GF1 PCM",
439 runtime->dma_bytes, 1, 32,
440 NULL)) == NULL)
441 return -ENOMEM;
442 pcmp->memory = block->ptr;
443 }
444 pcmp->voices = params_channels(hw_params);
445 if (pcmp->pvoices[0] == NULL) {
446 if ((pcmp->pvoices[0] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL)
447 return -ENOMEM;
448 pcmp->pvoices[0]->handler_wave = snd_gf1_pcm_interrupt_wave;
449 pcmp->pvoices[0]->handler_volume = snd_gf1_pcm_interrupt_volume;
450 pcmp->pvoices[0]->volume_change = snd_gf1_pcm_volume_change;
451 pcmp->pvoices[0]->private_data = pcmp;
452 }
453 if (pcmp->voices > 1 && pcmp->pvoices[1] == NULL) {
454 if ((pcmp->pvoices[1] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL)
455 return -ENOMEM;
456 pcmp->pvoices[1]->handler_wave = snd_gf1_pcm_interrupt_wave;
457 pcmp->pvoices[1]->handler_volume = snd_gf1_pcm_interrupt_volume;
458 pcmp->pvoices[1]->volume_change = snd_gf1_pcm_volume_change;
459 pcmp->pvoices[1]->private_data = pcmp;
460 } else if (pcmp->voices == 1) {
461 if (pcmp->pvoices[1]) {
462 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
463 pcmp->pvoices[1] = NULL;
464 }
465 }
466 return 0;
467}
468
5e2da206 469static int snd_gf1_pcm_playback_hw_free(struct snd_pcm_substream *substream)
1da177e4 470{
5e2da206
TI		 471 struct snd_pcm_runtime *runtime = substream->runtime;
472 struct gus_pcm_private *pcmp = runtime->private_data;
1da177e4
LT		 473
474 snd_pcm_lib_free_pages(substream);
475 if (pcmp->pvoices[0]) {
476 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[0]);
477 pcmp->pvoices[0] = NULL;
478 }
479 if (pcmp->pvoices[1]) {
480 snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
481 pcmp->pvoices[1] = NULL;
482 }
483 if (pcmp->memory > 0) {
484 snd_gf1_mem_free(&pcmp->gus->gf1.mem_alloc, pcmp->memory);
485 pcmp->memory = 0;
486 }
487 return 0;
488}
489
5e2da206 490static int snd_gf1_pcm_playback_prepare(struct snd_pcm_substream *substream)
1da177e4 491{
5e2da206
TI		 492 struct snd_pcm_runtime *runtime = substream->runtime;
493 struct gus_pcm_private *pcmp = runtime->private_data;
1da177e4
LT		 494
495 pcmp->bpos = 0;
496 pcmp->dma_size = snd_pcm_lib_buffer_bytes(substream);
497 pcmp->block_size = snd_pcm_lib_period_bytes(substream);
498 pcmp->blocks = pcmp->dma_size / pcmp->block_size;
499 return 0;
500}
501
5e2da206 502static int snd_gf1_pcm_playback_trigger(struct snd_pcm_substream *substream,
1da177e4
LT		 503 int cmd)
504{
5e2da206
TI		 505 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
506 struct snd_pcm_runtime *runtime = substream->runtime;
507 struct gus_pcm_private *pcmp = runtime->private_data;
1da177e4
LT		 508 int voice;
509
510 if (cmd == SNDRV_PCM_TRIGGER_START) {
511 snd_gf1_pcm_trigger_up(substream);
512 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
513 spin_lock(&pcmp->lock);
514 pcmp->flags &= ~SNDRV_GF1_PCM_PFLG_ACTIVE;
515 spin_unlock(&pcmp->lock);
516 voice = pcmp->pvoices[0]->number;
517 snd_gf1_stop_voices(gus, voice, voice);
518 if (pcmp->pvoices[1]) {
519 voice = pcmp->pvoices[1]->number;
520 snd_gf1_stop_voices(gus, voice, voice);
521 }
522 } else {
523 return -EINVAL;
524 }
525 return 0;
526}
527
5e2da206 528static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *substream)
1da177e4 529{
5e2da206
TI		 530 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
531 struct snd_pcm_runtime *runtime = substream->runtime;
532 struct gus_pcm_private *pcmp = runtime->private_data;
1da177e4
LT		 533 unsigned int pos;
534 unsigned char voice_ctrl;
535
536 pos = 0;
537 spin_lock(&gus->reg_lock);
538 if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
539 snd_gf1_select_voice(gus, pcmp->pvoices[0]->number);
540 voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
541 pos = (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4) - pcmp->memory;
542 if (substream->runtime->channels > 1)
543 pos <<= 1;
544 pos = bytes_to_frames(runtime, pos);
545 }
546 spin_unlock(&gus->reg_lock);
547 return pos;
548}
549
5e2da206 550static struct snd_ratnum clock = {
1da177e4
LT		 551 .num = 9878400/16,
552 .den_min = 2,
553 .den_max = 257,
554 .den_step = 1,
555};
556
5e2da206 557static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
1da177e4
LT		 558 .nrats = 1,
559 .rats = &clock,
560};
561
5e2da206
TI		 562static int snd_gf1_pcm_capture_hw_params(struct snd_pcm_substream *substream,
563 struct snd_pcm_hw_params *hw_params)
1da177e4 564{
5e2da206 565 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
1da177e4
LT		 566
567 gus->c_dma_size = params_buffer_bytes(hw_params);
568 gus->c_period_size = params_period_bytes(hw_params);
569 gus->c_pos = 0;
570 gus->gf1.pcm_rcntrl_reg = 0x21; /* IRQ at end, enable & start */
571 if (params_channels(hw_params) > 1)
572 gus->gf1.pcm_rcntrl_reg |= 2;
573 if (gus->gf1.dma2 > 3)
574 gus->gf1.pcm_rcntrl_reg |= 4;
575 if (snd_pcm_format_unsigned(params_format(hw_params)))
576 gus->gf1.pcm_rcntrl_reg |= 0x80;
577 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
578}
579
5e2da206 580static int snd_gf1_pcm_capture_hw_free(struct snd_pcm_substream *substream)
1da177e4
LT		 581{
582 return snd_pcm_lib_free_pages(substream);
583}
584
5e2da206 585static int snd_gf1_pcm_capture_prepare(struct snd_pcm_substream *substream)
1da177e4 586{
5e2da206
TI		 587 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
588 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 589
590 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RECORD_RATE, runtime->rate_den - 2);
591 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */
592 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */
593 snd_dma_program(gus->gf1.dma2, runtime->dma_addr, gus->c_period_size, DMA_MODE_READ);
594 return 0;
595}
596
5e2da206 597static int snd_gf1_pcm_capture_trigger(struct snd_pcm_substream *substream,
1da177e4
LT		 598 int cmd)
599{
5e2da206 600 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
1da177e4
LT		 601 int val;
602
603 if (cmd == SNDRV_PCM_TRIGGER_START) {
604 val = gus->gf1.pcm_rcntrl_reg;
605 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
606 val = 0;
607 } else {
608 return -EINVAL;
609 }
610
611 spin_lock(&gus->reg_lock);
612 snd_gf1_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, val);
613 snd_gf1_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
614 spin_unlock(&gus->reg_lock);
615 return 0;
616}
617
5e2da206 618static snd_pcm_uframes_t snd_gf1_pcm_capture_pointer(struct snd_pcm_substream *substream)
1da177e4 619{
5e2da206 620 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
1da177e4
LT		 621 int pos = snd_dma_pointer(gus->gf1.dma2, gus->c_period_size);
622 pos = bytes_to_frames(substream->runtime, (gus->c_pos + pos) % gus->c_dma_size);
623 return pos;
624}
625
5e2da206 626static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus)
1da177e4
LT		 627{
628 snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */
629 snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */
630 if (gus->pcm_cap_substream != NULL) {
631 snd_gf1_pcm_capture_prepare(gus->pcm_cap_substream);
632 snd_gf1_pcm_capture_trigger(gus->pcm_cap_substream, SNDRV_PCM_TRIGGER_START);
633 gus->c_pos += gus->c_period_size;
634 snd_pcm_period_elapsed(gus->pcm_cap_substream);
635 }
636}
637
5e2da206 638static struct snd_pcm_hardware snd_gf1_pcm_playback =
1da177e4
LT		 639{
640 .info = SNDRV_PCM_INFO_NONINTERLEAVED,
641 .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
642 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
643 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
644 .rate_min = 5510,
645 .rate_max = 48000,
646 .channels_min = 1,
647 .channels_max = 2,
648 .buffer_bytes_max = (128*1024),
649 .period_bytes_min = 64,
650 .period_bytes_max = (128*1024),
651 .periods_min = 1,
652 .periods_max = 1024,
653 .fifo_size = 0,
654};
655
5e2da206 656static struct snd_pcm_hardware snd_gf1_pcm_capture =
1da177e4
LT		 657{
658 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
659 SNDRV_PCM_INFO_MMAP_VALID),
660 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8,
661 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100,
662 .rate_min = 5510,
663 .rate_max = 44100,
664 .channels_min = 1,
665 .channels_max = 2,
666 .buffer_bytes_max = (128*1024),
667 .period_bytes_min = 64,
668 .period_bytes_max = (128*1024),
669 .periods_min = 1,
670 .periods_max = 1024,
671 .fifo_size = 0,
672};
673
5e2da206 674static void snd_gf1_pcm_playback_free(struct snd_pcm_runtime *runtime)
1da177e4 675{
4d572776 676 kfree(runtime->private_data);
1da177e4
LT		 677}
678
5e2da206 679static int snd_gf1_pcm_playback_open(struct snd_pcm_substream *substream)
1da177e4 680{
5e2da206
TI		 681 struct gus_pcm_private *pcmp;
682 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
683 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 684 int err;
685
9e76a76e 686 pcmp = kzalloc(sizeof(*pcmp), GFP_KERNEL);
1da177e4
LT		 687 if (pcmp == NULL)
688 return -ENOMEM;
689 pcmp->gus = gus;
690 spin_lock_init(&pcmp->lock);
691 init_waitqueue_head(&pcmp->sleep);
692 atomic_set(&pcmp->dma_count, 0);
693
694 runtime->private_data = pcmp;
695 runtime->private_free = snd_gf1_pcm_playback_free;
696
697#if 0
91f05060
TI		 698 printk(KERN_DEBUG "playback.buffer = 0x%lx, gf1.pcm_buffer = 0x%lx\n",
699 (long) pcm->playback.buffer, (long) gus->gf1.pcm_buffer);
1da177e4
LT		 700#endif
701 if ((err = snd_gf1_dma_init(gus)) < 0)
702 return err;
703 pcmp->flags = SNDRV_GF1_PCM_PFLG_NONE;
704 pcmp->substream = substream;
705 runtime->hw = snd_gf1_pcm_playback;
706 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.buffer_bytes_max);
707 snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.period_bytes_max);
708 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
709 return 0;
710}
711
5e2da206 712static int snd_gf1_pcm_playback_close(struct snd_pcm_substream *substream)
1da177e4 713{
5e2da206
TI		 714 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
715 struct snd_pcm_runtime *runtime = substream->runtime;
716 struct gus_pcm_private *pcmp = runtime->private_data;
1da177e4
LT		 717
718 if (!wait_event_timeout(pcmp->sleep, (atomic_read(&pcmp->dma_count) <= 0), 2*HZ))
99b359ba 719 snd_printk(KERN_ERR "gf1 pcm - serious DMA problem\n");
1da177e4
LT		 720
721 snd_gf1_dma_done(gus);
722 return 0;
723}
724
5e2da206 725static int snd_gf1_pcm_capture_open(struct snd_pcm_substream *substream)
1da177e4 726{
5e2da206
TI		 727 struct snd_pcm_runtime *runtime = substream->runtime;
728 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
1da177e4
LT		 729
730 gus->gf1.interrupt_handler_dma_read = snd_gf1_pcm_interrupt_dma_read;
731 gus->pcm_cap_substream = substream;
732 substream->runtime->hw = snd_gf1_pcm_capture;
733 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.buffer_bytes_max);
734 snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.period_bytes_max);
735 snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
736 &hw_constraints_clocks);
737 return 0;
738}
739
5e2da206 740static int snd_gf1_pcm_capture_close(struct snd_pcm_substream *substream)
1da177e4 741{
5e2da206 742 struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
1da177e4
LT		 743
744 gus->pcm_cap_substream = NULL;
745 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ);
746 return 0;
747}
748
5e2da206 749static int snd_gf1_pcm_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 750{
751 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
752 uinfo->count = 2;
753 uinfo->value.integer.min = 0;
754 uinfo->value.integer.max = 127;
755 return 0;
756}
757
5e2da206 758static int snd_gf1_pcm_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 759{
5e2da206 760 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 761 unsigned long flags;
762
763 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
764 ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1;
765 ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1;
766 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
767 return 0;
768}
769
5e2da206 770static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1da177e4 771{
5e2da206 772 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 773 unsigned long flags;
774 int change;
775 unsigned int idx;
776 unsigned short val1, val2, vol;
5e2da206
TI		 777 struct gus_pcm_private *pcmp;
778 struct snd_gus_voice *pvoice;
1da177e4
LT		 779
780 val1 = ucontrol->value.integer.value[0] & 127;
781 val2 = ucontrol->value.integer.value[1] & 127;
782 spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
783 change = val1 != gus->gf1.pcm_volume_level_left1 ||
784 val2 != gus->gf1.pcm_volume_level_right1;
785 gus->gf1.pcm_volume_level_left1 = val1;
786 gus->gf1.pcm_volume_level_right1 = val2;
787 gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4;
788 gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4;
789 spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
790 /* are we active? */
791 spin_lock_irqsave(&gus->voice_alloc, flags);
792 for (idx = 0; idx < 32; idx++) {
793 pvoice = &gus->gf1.voices[idx];
794 if (!pvoice->pcm)
795 continue;
796 pcmp = pvoice->private_data;
797 if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
798 continue;
799 /* load real volume - better precision */
fcb2954b 800 spin_lock(&gus->reg_lock);
1da177e4
LT		 801 snd_gf1_select_voice(gus, pvoice->number);
802 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
803 vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
804 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
805 pcmp->final_volume = 1;
fcb2954b 806 spin_unlock(&gus->reg_lock);
1da177e4
LT		 807 }
808 spin_unlock_irqrestore(&gus->voice_alloc, flags);
809 return change;
810}
811
5e2da206 812static struct snd_kcontrol_new snd_gf1_pcm_volume_control =
1da177e4
LT		 813{
814 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
815 .name = "PCM Playback Volume",
816 .info = snd_gf1_pcm_volume_info,
817 .get = snd_gf1_pcm_volume_get,
818 .put = snd_gf1_pcm_volume_put
819};
820
5e2da206 821static struct snd_kcontrol_new snd_gf1_pcm_volume_control1 =
1da177e4
LT		 822{
823 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
824 .name = "GPCM Playback Volume",
825 .info = snd_gf1_pcm_volume_info,
826 .get = snd_gf1_pcm_volume_get,
827 .put = snd_gf1_pcm_volume_put
828};
829
5e2da206 830static struct snd_pcm_ops snd_gf1_pcm_playback_ops = {
1da177e4
LT		 831 .open = snd_gf1_pcm_playback_open,
832 .close = snd_gf1_pcm_playback_close,
833 .ioctl = snd_pcm_lib_ioctl,
834 .hw_params = snd_gf1_pcm_playback_hw_params,
835 .hw_free = snd_gf1_pcm_playback_hw_free,
836 .prepare = snd_gf1_pcm_playback_prepare,
837 .trigger = snd_gf1_pcm_playback_trigger,
838 .pointer = snd_gf1_pcm_playback_pointer,
839 .copy = snd_gf1_pcm_playback_copy,
840 .silence = snd_gf1_pcm_playback_silence,
841};
842
5e2da206 843static struct snd_pcm_ops snd_gf1_pcm_capture_ops = {
1da177e4
LT		 844 .open = snd_gf1_pcm_capture_open,
845 .close = snd_gf1_pcm_capture_close,
846 .ioctl = snd_pcm_lib_ioctl,
847 .hw_params = snd_gf1_pcm_capture_hw_params,
848 .hw_free = snd_gf1_pcm_capture_hw_free,
849 .prepare = snd_gf1_pcm_capture_prepare,
850 .trigger = snd_gf1_pcm_capture_trigger,
851 .pointer = snd_gf1_pcm_capture_pointer,
852};
853
db5abb3c 854int snd_gf1_pcm_new(struct snd_gus_card *gus, int pcm_dev, int control_index)
1da177e4 855{
5e2da206
TI		 856 struct snd_card *card;
857 struct snd_kcontrol *kctl;
858 struct snd_pcm *pcm;
859 struct snd_pcm_substream *substream;
1da177e4
LT		 860 int capture, err;
861
1da177e4
LT		 862 card = gus->card;
863 capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0;
864 err = snd_pcm_new(card,
865 gus->interwave ? "AMD InterWave" : "GF1",
866 pcm_dev,
867 gus->gf1.pcm_channels / 2,
868 capture,
869 &pcm);
870 if (err < 0)
871 return err;
872 pcm->private_data = gus;
1da177e4
LT		 873 /* playback setup */
874 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops);
875
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,
878 snd_dma_isa_data(),
879 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024);
880
881 pcm->info_flags = 0;
882 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
883 if (capture) {
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);
890 }
891 strcpy(pcm->name, pcm->id);
892 if (gus->interwave) {
893 sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A');
894 }
895 strcat(pcm->name, " (synth)");
896 gus->pcm = pcm;
897
898 if (gus->codec_flag)
899 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus);
900 else
901 kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus);
902 if ((err = snd_ctl_add(card, kctl)) < 0)
903 return err;
904 kctl->id.index = control_index;
905
1da177e4
LT		 906 return 0;
907}
908
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