Commit | Line | Data |
---|---|---|
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 | ||
28 | #include <sound/driver.h> | |
29 | #include <asm/dma.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" | |
36 | ||
37 | /* maximum rate */ | |
38 | ||
39 | #define SNDRV_GF1_PCM_RATE 48000 | |
40 | ||
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) | |
44 | ||
5e2da206 TI |
45 | struct gus_pcm_private { |
46 | struct snd_gus_card * gus; | |
47 | struct snd_pcm_substream *substream; | |
1da177e4 LT |
48 | spinlock_t lock; |
49 | unsigned int voices; | |
5e2da206 | 50 | struct snd_gus_voice *pvoices[2]; |
1da177e4 LT |
51 | unsigned int memory; |
52 | unsigned short flags; | |
53 | unsigned char voice_ctrl, ramp_ctrl; | |
54 | unsigned int bpos; | |
55 | unsigned int blocks; | |
56 | unsigned int block_size; | |
57 | unsigned int dma_size; | |
58 | wait_queue_head_t sleep; | |
59 | atomic_t dma_count; | |
60 | int final_volume; | |
5e2da206 | 61 | }; |
1da177e4 LT |
62 | |
63 | static int snd_gf1_pcm_use_dma = 1; | |
64 | ||
5e2da206 | 65 | static void snd_gf1_pcm_block_change_ack(struct snd_gus_card * gus, void *private_data) |
1da177e4 | 66 | { |
5e2da206 | 67 | struct gus_pcm_private *pcmp = private_data; |
1da177e4 LT |
68 | |
69 | if (pcmp) { | |
70 | atomic_dec(&pcmp->dma_count); | |
71 | wake_up(&pcmp->sleep); | |
72 | } | |
73 | } | |
74 | ||
5e2da206 | 75 | static int snd_gf1_pcm_block_change(struct snd_pcm_substream *substream, |
1da177e4 LT |
76 | unsigned int offset, |
77 | unsigned int addr, | |
78 | unsigned int count) | |
79 | { | |
5e2da206 TI |
80 | struct snd_gf1_dma_block block; |
81 | struct snd_pcm_runtime *runtime = substream->runtime; | |
82 | struct gus_pcm_private *pcmp = runtime->private_data; | |
1da177e4 LT |
83 | |
84 | count += offset & 31; | |
85 | offset &= ~31; | |
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; | |
96 | block.count = count; | |
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); | |
101 | return 0; | |
102 | } | |
103 | ||
5e2da206 | 104 | static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream) |
1da177e4 | 105 | { |
5e2da206 TI |
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; | |
1da177e4 LT |
109 | unsigned long flags; |
110 | unsigned char voice_ctrl, ramp_ctrl; | |
111 | unsigned short rate; | |
112 | unsigned int curr, begin, end; | |
113 | unsigned short vol; | |
114 | unsigned char pan; | |
115 | unsigned int voice; | |
116 | ||
1da177e4 LT |
117 | spin_lock_irqsave(&pcmp->lock, flags); |
118 | if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) { | |
119 | spin_unlock_irqrestore(&pcmp->lock, flags); | |
120 | return; | |
121 | } | |
122 | pcmp->flags |= SNDRV_GF1_PCM_PFLG_ACTIVE; | |
123 | pcmp->final_volume = 0; | |
124 | spin_unlock_irqrestore(&pcmp->lock, flags); | |
125 | rate = snd_gf1_translate_freq(gus, runtime->rate << 4); | |
126 | /* enable WAVE IRQ */ | |
127 | voice_ctrl = snd_pcm_format_width(runtime->format) == 16 ? 0x24 : 0x20; | |
128 | /* enable RAMP IRQ + rollover */ | |
129 | ramp_ctrl = 0x24; | |
130 | if (pcmp->blocks == 1) { | |
131 | voice_ctrl |= 0x08; /* loop enable */ | |
132 | ramp_ctrl &= ~0x04; /* disable rollover */ | |
133 | } | |
134 | for (voice = 0; voice < pcmp->voices; voice++) { | |
135 | begin = pcmp->memory + voice * (pcmp->dma_size / runtime->channels); | |
136 | curr = begin + (pcmp->bpos * pcmp->block_size) / runtime->channels; | |
137 | end = curr + (pcmp->block_size / runtime->channels); | |
138 | end -= snd_pcm_format_width(runtime->format) == 16 ? 2 : 1; | |
139 | // 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); | |
140 | pan = runtime->channels == 2 ? (!voice ? 1 : 14) : 8; | |
141 | vol = !voice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right; | |
142 | spin_lock_irqsave(&gus->reg_lock, flags); | |
143 | snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number); | |
144 | snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, pan); | |
145 | snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, rate); | |
146 | snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, begin << 4, voice_ctrl & 4); | |
147 | snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4); | |
148 | snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, curr << 4, voice_ctrl & 4); | |
149 | snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME << 4); | |
150 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0x2f); | |
151 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET); | |
152 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, vol >> 8); | |
153 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); | |
154 | if (!gus->gf1.enh_mode) { | |
155 | snd_gf1_delay(gus); | |
156 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); | |
157 | } | |
158 | spin_unlock_irqrestore(&gus->reg_lock, flags); | |
159 | } | |
160 | spin_lock_irqsave(&gus->reg_lock, flags); | |
161 | for (voice = 0; voice < pcmp->voices; voice++) { | |
162 | snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number); | |
163 | if (gus->gf1.enh_mode) | |
164 | snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, 0x00); /* deactivate voice */ | |
165 | snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); | |
166 | voice_ctrl &= ~0x20; | |
167 | } | |
168 | voice_ctrl |= 0x20; | |
169 | if (!gus->gf1.enh_mode) { | |
170 | snd_gf1_delay(gus); | |
171 | for (voice = 0; voice < pcmp->voices; voice++) { | |
172 | snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number); | |
173 | snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); | |
174 | voice_ctrl &= ~0x20; /* disable IRQ for next voice */ | |
175 | } | |
176 | } | |
177 | spin_unlock_irqrestore(&gus->reg_lock, flags); | |
178 | } | |
179 | ||
5e2da206 TI |
180 | static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus, |
181 | struct snd_gus_voice *pvoice) | |
1da177e4 | 182 | { |
5e2da206 TI |
183 | struct gus_pcm_private * pcmp; |
184 | struct snd_pcm_runtime *runtime; | |
1da177e4 LT |
185 | unsigned char voice_ctrl, ramp_ctrl; |
186 | unsigned int idx; | |
187 | unsigned int end, step; | |
188 | ||
189 | if (!pvoice->private_data) { | |
190 | snd_printd("snd_gf1_pcm: unknown wave irq?\n"); | |
191 | snd_gf1_smart_stop_voice(gus, pvoice->number); | |
192 | return; | |
193 | } | |
194 | pcmp = pvoice->private_data; | |
195 | if (pcmp == NULL) { | |
196 | snd_printd("snd_gf1_pcm: unknown wave irq?\n"); | |
197 | snd_gf1_smart_stop_voice(gus, pvoice->number); | |
198 | return; | |
199 | } | |
200 | gus = pcmp->gus; | |
201 | runtime = pcmp->substream->runtime; | |
202 | ||
203 | spin_lock(&gus->reg_lock); | |
204 | snd_gf1_select_voice(gus, pvoice->number); | |
205 | voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b; | |
206 | ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03; | |
207 | #if 0 | |
208 | snd_gf1_select_voice(gus, pvoice->number); | |
209 | printk("position = 0x%x\n", (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4)); | |
210 | snd_gf1_select_voice(gus, pcmp->pvoices[1]->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, pvoice->number); | |
213 | #endif | |
214 | pcmp->bpos++; | |
215 | pcmp->bpos %= pcmp->blocks; | |
216 | if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */ | |
217 | voice_ctrl |= 0x08; /* enable loop */ | |
218 | } else { | |
219 | ramp_ctrl |= 0x04; /* enable rollover */ | |
220 | } | |
221 | end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels); | |
222 | end -= voice_ctrl & 4 ? 2 : 1; | |
223 | step = pcmp->dma_size / runtime->channels; | |
224 | voice_ctrl |= 0x20; | |
225 | if (!pcmp->final_volume) { | |
226 | ramp_ctrl |= 0x20; | |
227 | ramp_ctrl &= ~0x03; | |
228 | } | |
229 | for (idx = 0; idx < pcmp->voices; idx++, end += step) { | |
230 | snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number); | |
231 | snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4); | |
232 | snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); | |
233 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); | |
234 | voice_ctrl &= ~0x20; | |
235 | } | |
236 | if (!gus->gf1.enh_mode) { | |
237 | snd_gf1_delay(gus); | |
238 | voice_ctrl |= 0x20; | |
239 | for (idx = 0; idx < pcmp->voices; idx++) { | |
240 | snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number); | |
241 | snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); | |
242 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); | |
243 | voice_ctrl &= ~0x20; | |
244 | } | |
245 | } | |
246 | spin_unlock(&gus->reg_lock); | |
247 | ||
248 | snd_pcm_period_elapsed(pcmp->substream); | |
249 | #if 0 | |
250 | if ((runtime->flags & SNDRV_PCM_FLG_MMAP) && | |
251 | *runtime->state == SNDRV_PCM_STATE_RUNNING) { | |
252 | end = pcmp->bpos * pcmp->block_size; | |
253 | if (runtime->channels > 1) { | |
254 | snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + (end / 2), pcmp->block_size / 2); | |
255 | snd_gf1_pcm_block_change(pcmp->substream, end + (pcmp->block_size / 2), pcmp->memory + (pcmp->dma_size / 2) + (end / 2), pcmp->block_size / 2); | |
256 | } else { | |
257 | snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size); | |
258 | } | |
259 | } | |
260 | #endif | |
261 | } | |
262 | ||
5e2da206 TI |
263 | static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus, |
264 | struct snd_gus_voice * pvoice) | |
1da177e4 LT |
265 | { |
266 | unsigned short vol; | |
267 | int cvoice; | |
5e2da206 | 268 | struct gus_pcm_private *pcmp = pvoice->private_data; |
1da177e4 LT |
269 | |
270 | /* stop ramp, but leave rollover bit untouched */ | |
271 | spin_lock(&gus->reg_lock); | |
272 | snd_gf1_select_voice(gus, pvoice->number); | |
273 | snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL); | |
274 | spin_unlock(&gus->reg_lock); | |
275 | if (pcmp == NULL) | |
276 | return; | |
277 | /* are we active? */ | |
278 | if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE)) | |
279 | return; | |
280 | /* load real volume - better precision */ | |
281 | cvoice = pcmp->pvoices[0] == pvoice ? 0 : 1; | |
282 | if (pcmp->substream == NULL) | |
283 | return; | |
284 | vol = !cvoice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right; | |
285 | spin_lock(&gus->reg_lock); | |
286 | snd_gf1_select_voice(gus, pvoice->number); | |
287 | snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol); | |
288 | pcmp->final_volume = 1; | |
289 | spin_unlock(&gus->reg_lock); | |
290 | } | |
291 | ||
5e2da206 | 292 | static void snd_gf1_pcm_volume_change(struct snd_gus_card * gus) |
1da177e4 LT |
293 | { |
294 | } | |
295 | ||
5e2da206 | 296 | static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf, |
1da177e4 LT |
297 | unsigned int pos, unsigned int count, |
298 | int w16, int invert) | |
299 | { | |
300 | unsigned int len; | |
301 | unsigned long flags; | |
302 | ||
303 | // printk("poke block; buf = 0x%x, pos = %i, count = %i, port = 0x%x\n", (int)buf, pos, count, gus->gf1.port); | |
304 | while (count > 0) { | |
305 | len = count; | |
306 | if (len > 512) /* limit, to allow IRQ */ | |
307 | len = 512; | |
308 | count -= len; | |
309 | if (gus->interwave) { | |
310 | spin_lock_irqsave(&gus->reg_lock, flags); | |
311 | snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01 | (invert ? 0x08 : 0x00)); | |
312 | snd_gf1_dram_addr(gus, pos); | |
313 | if (w16) { | |
314 | outb(SNDRV_GF1_GW_DRAM_IO16, GUSP(gus, GF1REGSEL)); | |
315 | outsw(GUSP(gus, GF1DATALOW), buf, len >> 1); | |
316 | } else { | |
317 | outsb(GUSP(gus, DRAM), buf, len); | |
318 | } | |
319 | spin_unlock_irqrestore(&gus->reg_lock, flags); | |
320 | buf += 512; | |
321 | pos += 512; | |
322 | } else { | |
323 | invert = invert ? 0x80 : 0x00; | |
324 | if (w16) { | |
325 | len >>= 1; | |
326 | while (len--) { | |
327 | snd_gf1_poke(gus, pos++, *buf++); | |
328 | snd_gf1_poke(gus, pos++, *buf++ ^ invert); | |
329 | } | |
330 | } else { | |
331 | while (len--) | |
332 | snd_gf1_poke(gus, pos++, *buf++ ^ invert); | |
333 | } | |
334 | } | |
335 | if (count > 0 && !in_interrupt()) { | |
8433a509 | 336 | schedule_timeout_interruptible(1); |
1da177e4 LT |
337 | if (signal_pending(current)) |
338 | return -EAGAIN; | |
339 | } | |
340 | } | |
341 | return 0; | |
342 | } | |
343 | ||
5e2da206 | 344 | static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream, |
1da177e4 LT |
345 | int voice, |
346 | snd_pcm_uframes_t pos, | |
347 | void __user *src, | |
348 | snd_pcm_uframes_t count) | |
349 | { | |
5e2da206 TI |
350 | struct snd_pcm_runtime *runtime = substream->runtime; |
351 | struct gus_pcm_private *pcmp = runtime->private_data; | |
1da177e4 LT |
352 | unsigned int bpos, len; |
353 | ||
354 | bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2)); | |
355 | len = samples_to_bytes(runtime, count); | |
356 | snd_assert(bpos <= pcmp->dma_size, return -EIO); | |
357 | snd_assert(bpos + len <= pcmp->dma_size, return -EIO); | |
358 | if (copy_from_user(runtime->dma_area + bpos, src, len)) | |
359 | return -EFAULT; | |
360 | if (snd_gf1_pcm_use_dma && len > 32) { | |
361 | return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len); | |
362 | } else { | |
5e2da206 | 363 | struct snd_gus_card *gus = pcmp->gus; |
1da177e4 LT |
364 | int err, w16, invert; |
365 | ||
366 | w16 = (snd_pcm_format_width(runtime->format) == 16); | |
367 | invert = snd_pcm_format_unsigned(runtime->format); | |
368 | if ((err = snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, pcmp->memory + bpos, len, w16, invert)) < 0) | |
369 | return err; | |
370 | } | |
371 | return 0; | |
372 | } | |
373 | ||
5e2da206 | 374 | static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream, |
1da177e4 LT |
375 | int voice, |
376 | snd_pcm_uframes_t pos, | |
377 | snd_pcm_uframes_t count) | |
378 | { | |
5e2da206 TI |
379 | struct snd_pcm_runtime *runtime = substream->runtime; |
380 | struct gus_pcm_private *pcmp = runtime->private_data; | |
1da177e4 LT |
381 | unsigned int bpos, len; |
382 | ||
383 | bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2)); | |
384 | len = samples_to_bytes(runtime, count); | |
385 | snd_assert(bpos <= pcmp->dma_size, return -EIO); | |
386 | snd_assert(bpos + len <= pcmp->dma_size, return -EIO); | |
387 | snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos, count); | |
388 | if (snd_gf1_pcm_use_dma && len > 32) { | |
389 | return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len); | |
390 | } else { | |
5e2da206 | 391 | struct snd_gus_card *gus = pcmp->gus; |
1da177e4 LT |
392 | int err, w16, invert; |
393 | ||
394 | w16 = (snd_pcm_format_width(runtime->format) == 16); | |
395 | invert = snd_pcm_format_unsigned(runtime->format); | |
396 | if ((err = snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, pcmp->memory + bpos, len, w16, invert)) < 0) | |
397 | return err; | |
398 | } | |
399 | return 0; | |
400 | } | |
401 | ||
5e2da206 TI |
402 | static int snd_gf1_pcm_playback_hw_params(struct snd_pcm_substream *substream, |
403 | struct snd_pcm_hw_params *hw_params) | |
1da177e4 | 404 | { |
5e2da206 TI |
405 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); |
406 | struct snd_pcm_runtime *runtime = substream->runtime; | |
407 | struct gus_pcm_private *pcmp = runtime->private_data; | |
1da177e4 LT |
408 | int err; |
409 | ||
410 | if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) | |
411 | return err; | |
412 | if (err > 0) { /* change */ | |
5e2da206 | 413 | struct snd_gf1_mem_block *block; |
1da177e4 LT |
414 | if (pcmp->memory > 0) { |
415 | snd_gf1_mem_free(&gus->gf1.mem_alloc, pcmp->memory); | |
416 | pcmp->memory = 0; | |
417 | } | |
418 | if ((block = snd_gf1_mem_alloc(&gus->gf1.mem_alloc, | |
419 | SNDRV_GF1_MEM_OWNER_DRIVER, | |
420 | "GF1 PCM", | |
421 | runtime->dma_bytes, 1, 32, | |
422 | NULL)) == NULL) | |
423 | return -ENOMEM; | |
424 | pcmp->memory = block->ptr; | |
425 | } | |
426 | pcmp->voices = params_channels(hw_params); | |
427 | if (pcmp->pvoices[0] == NULL) { | |
428 | if ((pcmp->pvoices[0] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL) | |
429 | return -ENOMEM; | |
430 | pcmp->pvoices[0]->handler_wave = snd_gf1_pcm_interrupt_wave; | |
431 | pcmp->pvoices[0]->handler_volume = snd_gf1_pcm_interrupt_volume; | |
432 | pcmp->pvoices[0]->volume_change = snd_gf1_pcm_volume_change; | |
433 | pcmp->pvoices[0]->private_data = pcmp; | |
434 | } | |
435 | if (pcmp->voices > 1 && pcmp->pvoices[1] == NULL) { | |
436 | if ((pcmp->pvoices[1] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL) | |
437 | return -ENOMEM; | |
438 | pcmp->pvoices[1]->handler_wave = snd_gf1_pcm_interrupt_wave; | |
439 | pcmp->pvoices[1]->handler_volume = snd_gf1_pcm_interrupt_volume; | |
440 | pcmp->pvoices[1]->volume_change = snd_gf1_pcm_volume_change; | |
441 | pcmp->pvoices[1]->private_data = pcmp; | |
442 | } else if (pcmp->voices == 1) { | |
443 | if (pcmp->pvoices[1]) { | |
444 | snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]); | |
445 | pcmp->pvoices[1] = NULL; | |
446 | } | |
447 | } | |
448 | return 0; | |
449 | } | |
450 | ||
5e2da206 | 451 | static int snd_gf1_pcm_playback_hw_free(struct snd_pcm_substream *substream) |
1da177e4 | 452 | { |
5e2da206 TI |
453 | struct snd_pcm_runtime *runtime = substream->runtime; |
454 | struct gus_pcm_private *pcmp = runtime->private_data; | |
1da177e4 LT |
455 | |
456 | snd_pcm_lib_free_pages(substream); | |
457 | if (pcmp->pvoices[0]) { | |
458 | snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[0]); | |
459 | pcmp->pvoices[0] = NULL; | |
460 | } | |
461 | if (pcmp->pvoices[1]) { | |
462 | snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]); | |
463 | pcmp->pvoices[1] = NULL; | |
464 | } | |
465 | if (pcmp->memory > 0) { | |
466 | snd_gf1_mem_free(&pcmp->gus->gf1.mem_alloc, pcmp->memory); | |
467 | pcmp->memory = 0; | |
468 | } | |
469 | return 0; | |
470 | } | |
471 | ||
5e2da206 | 472 | static int snd_gf1_pcm_playback_prepare(struct snd_pcm_substream *substream) |
1da177e4 | 473 | { |
5e2da206 TI |
474 | struct snd_pcm_runtime *runtime = substream->runtime; |
475 | struct gus_pcm_private *pcmp = runtime->private_data; | |
1da177e4 LT |
476 | |
477 | pcmp->bpos = 0; | |
478 | pcmp->dma_size = snd_pcm_lib_buffer_bytes(substream); | |
479 | pcmp->block_size = snd_pcm_lib_period_bytes(substream); | |
480 | pcmp->blocks = pcmp->dma_size / pcmp->block_size; | |
481 | return 0; | |
482 | } | |
483 | ||
5e2da206 | 484 | static int snd_gf1_pcm_playback_trigger(struct snd_pcm_substream *substream, |
1da177e4 LT |
485 | int cmd) |
486 | { | |
5e2da206 TI |
487 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); |
488 | struct snd_pcm_runtime *runtime = substream->runtime; | |
489 | struct gus_pcm_private *pcmp = runtime->private_data; | |
1da177e4 LT |
490 | int voice; |
491 | ||
492 | if (cmd == SNDRV_PCM_TRIGGER_START) { | |
493 | snd_gf1_pcm_trigger_up(substream); | |
494 | } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { | |
495 | spin_lock(&pcmp->lock); | |
496 | pcmp->flags &= ~SNDRV_GF1_PCM_PFLG_ACTIVE; | |
497 | spin_unlock(&pcmp->lock); | |
498 | voice = pcmp->pvoices[0]->number; | |
499 | snd_gf1_stop_voices(gus, voice, voice); | |
500 | if (pcmp->pvoices[1]) { | |
501 | voice = pcmp->pvoices[1]->number; | |
502 | snd_gf1_stop_voices(gus, voice, voice); | |
503 | } | |
504 | } else { | |
505 | return -EINVAL; | |
506 | } | |
507 | return 0; | |
508 | } | |
509 | ||
5e2da206 | 510 | static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *substream) |
1da177e4 | 511 | { |
5e2da206 TI |
512 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); |
513 | struct snd_pcm_runtime *runtime = substream->runtime; | |
514 | struct gus_pcm_private *pcmp = runtime->private_data; | |
1da177e4 LT |
515 | unsigned int pos; |
516 | unsigned char voice_ctrl; | |
517 | ||
518 | pos = 0; | |
519 | spin_lock(&gus->reg_lock); | |
520 | if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) { | |
521 | snd_gf1_select_voice(gus, pcmp->pvoices[0]->number); | |
522 | voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL); | |
523 | pos = (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4) - pcmp->memory; | |
524 | if (substream->runtime->channels > 1) | |
525 | pos <<= 1; | |
526 | pos = bytes_to_frames(runtime, pos); | |
527 | } | |
528 | spin_unlock(&gus->reg_lock); | |
529 | return pos; | |
530 | } | |
531 | ||
5e2da206 | 532 | static struct snd_ratnum clock = { |
1da177e4 LT |
533 | .num = 9878400/16, |
534 | .den_min = 2, | |
535 | .den_max = 257, | |
536 | .den_step = 1, | |
537 | }; | |
538 | ||
5e2da206 | 539 | static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = { |
1da177e4 LT |
540 | .nrats = 1, |
541 | .rats = &clock, | |
542 | }; | |
543 | ||
5e2da206 TI |
544 | static int snd_gf1_pcm_capture_hw_params(struct snd_pcm_substream *substream, |
545 | struct snd_pcm_hw_params *hw_params) | |
1da177e4 | 546 | { |
5e2da206 | 547 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); |
1da177e4 LT |
548 | |
549 | gus->c_dma_size = params_buffer_bytes(hw_params); | |
550 | gus->c_period_size = params_period_bytes(hw_params); | |
551 | gus->c_pos = 0; | |
552 | gus->gf1.pcm_rcntrl_reg = 0x21; /* IRQ at end, enable & start */ | |
553 | if (params_channels(hw_params) > 1) | |
554 | gus->gf1.pcm_rcntrl_reg |= 2; | |
555 | if (gus->gf1.dma2 > 3) | |
556 | gus->gf1.pcm_rcntrl_reg |= 4; | |
557 | if (snd_pcm_format_unsigned(params_format(hw_params))) | |
558 | gus->gf1.pcm_rcntrl_reg |= 0x80; | |
559 | return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); | |
560 | } | |
561 | ||
5e2da206 | 562 | static int snd_gf1_pcm_capture_hw_free(struct snd_pcm_substream *substream) |
1da177e4 LT |
563 | { |
564 | return snd_pcm_lib_free_pages(substream); | |
565 | } | |
566 | ||
5e2da206 | 567 | static int snd_gf1_pcm_capture_prepare(struct snd_pcm_substream *substream) |
1da177e4 | 568 | { |
5e2da206 TI |
569 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); |
570 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1da177e4 LT |
571 | |
572 | snd_gf1_i_write8(gus, SNDRV_GF1_GB_RECORD_RATE, runtime->rate_den - 2); | |
573 | snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */ | |
574 | snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */ | |
575 | snd_dma_program(gus->gf1.dma2, runtime->dma_addr, gus->c_period_size, DMA_MODE_READ); | |
576 | return 0; | |
577 | } | |
578 | ||
5e2da206 | 579 | static int snd_gf1_pcm_capture_trigger(struct snd_pcm_substream *substream, |
1da177e4 LT |
580 | int cmd) |
581 | { | |
5e2da206 | 582 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); |
1da177e4 LT |
583 | int val; |
584 | ||
585 | if (cmd == SNDRV_PCM_TRIGGER_START) { | |
586 | val = gus->gf1.pcm_rcntrl_reg; | |
587 | } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { | |
588 | val = 0; | |
589 | } else { | |
590 | return -EINVAL; | |
591 | } | |
592 | ||
593 | spin_lock(&gus->reg_lock); | |
594 | snd_gf1_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, val); | |
595 | snd_gf1_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); | |
596 | spin_unlock(&gus->reg_lock); | |
597 | return 0; | |
598 | } | |
599 | ||
5e2da206 | 600 | static snd_pcm_uframes_t snd_gf1_pcm_capture_pointer(struct snd_pcm_substream *substream) |
1da177e4 | 601 | { |
5e2da206 | 602 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); |
1da177e4 LT |
603 | int pos = snd_dma_pointer(gus->gf1.dma2, gus->c_period_size); |
604 | pos = bytes_to_frames(substream->runtime, (gus->c_pos + pos) % gus->c_dma_size); | |
605 | return pos; | |
606 | } | |
607 | ||
5e2da206 | 608 | static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus) |
1da177e4 LT |
609 | { |
610 | snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */ | |
611 | snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */ | |
612 | if (gus->pcm_cap_substream != NULL) { | |
613 | snd_gf1_pcm_capture_prepare(gus->pcm_cap_substream); | |
614 | snd_gf1_pcm_capture_trigger(gus->pcm_cap_substream, SNDRV_PCM_TRIGGER_START); | |
615 | gus->c_pos += gus->c_period_size; | |
616 | snd_pcm_period_elapsed(gus->pcm_cap_substream); | |
617 | } | |
618 | } | |
619 | ||
5e2da206 | 620 | static struct snd_pcm_hardware snd_gf1_pcm_playback = |
1da177e4 LT |
621 | { |
622 | .info = SNDRV_PCM_INFO_NONINTERLEAVED, | |
623 | .formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | | |
624 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE), | |
625 | .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, | |
626 | .rate_min = 5510, | |
627 | .rate_max = 48000, | |
628 | .channels_min = 1, | |
629 | .channels_max = 2, | |
630 | .buffer_bytes_max = (128*1024), | |
631 | .period_bytes_min = 64, | |
632 | .period_bytes_max = (128*1024), | |
633 | .periods_min = 1, | |
634 | .periods_max = 1024, | |
635 | .fifo_size = 0, | |
636 | }; | |
637 | ||
5e2da206 | 638 | static struct snd_pcm_hardware snd_gf1_pcm_capture = |
1da177e4 LT |
639 | { |
640 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
641 | SNDRV_PCM_INFO_MMAP_VALID), | |
642 | .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8, | |
643 | .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100, | |
644 | .rate_min = 5510, | |
645 | .rate_max = 44100, | |
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 | 656 | static void snd_gf1_pcm_playback_free(struct snd_pcm_runtime *runtime) |
1da177e4 | 657 | { |
4d572776 | 658 | kfree(runtime->private_data); |
1da177e4 LT |
659 | } |
660 | ||
5e2da206 | 661 | static int snd_gf1_pcm_playback_open(struct snd_pcm_substream *substream) |
1da177e4 | 662 | { |
5e2da206 TI |
663 | struct gus_pcm_private *pcmp; |
664 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); | |
665 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1da177e4 LT |
666 | int err; |
667 | ||
9e76a76e | 668 | pcmp = kzalloc(sizeof(*pcmp), GFP_KERNEL); |
1da177e4 LT |
669 | if (pcmp == NULL) |
670 | return -ENOMEM; | |
671 | pcmp->gus = gus; | |
672 | spin_lock_init(&pcmp->lock); | |
673 | init_waitqueue_head(&pcmp->sleep); | |
674 | atomic_set(&pcmp->dma_count, 0); | |
675 | ||
676 | runtime->private_data = pcmp; | |
677 | runtime->private_free = snd_gf1_pcm_playback_free; | |
678 | ||
679 | #if 0 | |
680 | printk("playback.buffer = 0x%lx, gf1.pcm_buffer = 0x%lx\n", (long) pcm->playback.buffer, (long) gus->gf1.pcm_buffer); | |
681 | #endif | |
682 | if ((err = snd_gf1_dma_init(gus)) < 0) | |
683 | return err; | |
684 | pcmp->flags = SNDRV_GF1_PCM_PFLG_NONE; | |
685 | pcmp->substream = substream; | |
686 | runtime->hw = snd_gf1_pcm_playback; | |
687 | snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.buffer_bytes_max); | |
688 | snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.period_bytes_max); | |
689 | snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64); | |
690 | return 0; | |
691 | } | |
692 | ||
5e2da206 | 693 | static int snd_gf1_pcm_playback_close(struct snd_pcm_substream *substream) |
1da177e4 | 694 | { |
5e2da206 TI |
695 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); |
696 | struct snd_pcm_runtime *runtime = substream->runtime; | |
697 | struct gus_pcm_private *pcmp = runtime->private_data; | |
1da177e4 LT |
698 | |
699 | if (!wait_event_timeout(pcmp->sleep, (atomic_read(&pcmp->dma_count) <= 0), 2*HZ)) | |
99b359ba | 700 | snd_printk(KERN_ERR "gf1 pcm - serious DMA problem\n"); |
1da177e4 LT |
701 | |
702 | snd_gf1_dma_done(gus); | |
703 | return 0; | |
704 | } | |
705 | ||
5e2da206 | 706 | static int snd_gf1_pcm_capture_open(struct snd_pcm_substream *substream) |
1da177e4 | 707 | { |
5e2da206 TI |
708 | struct snd_pcm_runtime *runtime = substream->runtime; |
709 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); | |
1da177e4 LT |
710 | |
711 | gus->gf1.interrupt_handler_dma_read = snd_gf1_pcm_interrupt_dma_read; | |
712 | gus->pcm_cap_substream = substream; | |
713 | substream->runtime->hw = snd_gf1_pcm_capture; | |
714 | snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.buffer_bytes_max); | |
715 | snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.period_bytes_max); | |
716 | snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, | |
717 | &hw_constraints_clocks); | |
718 | return 0; | |
719 | } | |
720 | ||
5e2da206 | 721 | static int snd_gf1_pcm_capture_close(struct snd_pcm_substream *substream) |
1da177e4 | 722 | { |
5e2da206 | 723 | struct snd_gus_card *gus = snd_pcm_substream_chip(substream); |
1da177e4 LT |
724 | |
725 | gus->pcm_cap_substream = NULL; | |
726 | snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ); | |
727 | return 0; | |
728 | } | |
729 | ||
5e2da206 | 730 | static int snd_gf1_pcm_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) |
1da177e4 LT |
731 | { |
732 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
733 | uinfo->count = 2; | |
734 | uinfo->value.integer.min = 0; | |
735 | uinfo->value.integer.max = 127; | |
736 | return 0; | |
737 | } | |
738 | ||
5e2da206 | 739 | static int snd_gf1_pcm_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 740 | { |
5e2da206 | 741 | struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
742 | unsigned long flags; |
743 | ||
744 | spin_lock_irqsave(&gus->pcm_volume_level_lock, flags); | |
745 | ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1; | |
746 | ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1; | |
747 | spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags); | |
748 | return 0; | |
749 | } | |
750 | ||
5e2da206 | 751 | static int snd_gf1_pcm_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) |
1da177e4 | 752 | { |
5e2da206 | 753 | struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol); |
1da177e4 LT |
754 | unsigned long flags; |
755 | int change; | |
756 | unsigned int idx; | |
757 | unsigned short val1, val2, vol; | |
5e2da206 TI |
758 | struct gus_pcm_private *pcmp; |
759 | struct snd_gus_voice *pvoice; | |
1da177e4 LT |
760 | |
761 | val1 = ucontrol->value.integer.value[0] & 127; | |
762 | val2 = ucontrol->value.integer.value[1] & 127; | |
763 | spin_lock_irqsave(&gus->pcm_volume_level_lock, flags); | |
764 | change = val1 != gus->gf1.pcm_volume_level_left1 || | |
765 | val2 != gus->gf1.pcm_volume_level_right1; | |
766 | gus->gf1.pcm_volume_level_left1 = val1; | |
767 | gus->gf1.pcm_volume_level_right1 = val2; | |
768 | gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4; | |
769 | gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4; | |
770 | spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags); | |
771 | /* are we active? */ | |
772 | spin_lock_irqsave(&gus->voice_alloc, flags); | |
773 | for (idx = 0; idx < 32; idx++) { | |
774 | pvoice = &gus->gf1.voices[idx]; | |
775 | if (!pvoice->pcm) | |
776 | continue; | |
777 | pcmp = pvoice->private_data; | |
778 | if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE)) | |
779 | continue; | |
780 | /* load real volume - better precision */ | |
781 | spin_lock_irqsave(&gus->reg_lock, flags); | |
782 | snd_gf1_select_voice(gus, pvoice->number); | |
783 | snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL); | |
784 | vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right; | |
785 | snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol); | |
786 | pcmp->final_volume = 1; | |
787 | spin_unlock_irqrestore(&gus->reg_lock, flags); | |
788 | } | |
789 | spin_unlock_irqrestore(&gus->voice_alloc, flags); | |
790 | return change; | |
791 | } | |
792 | ||
5e2da206 | 793 | static struct snd_kcontrol_new snd_gf1_pcm_volume_control = |
1da177e4 LT |
794 | { |
795 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
796 | .name = "PCM Playback Volume", | |
797 | .info = snd_gf1_pcm_volume_info, | |
798 | .get = snd_gf1_pcm_volume_get, | |
799 | .put = snd_gf1_pcm_volume_put | |
800 | }; | |
801 | ||
5e2da206 | 802 | static struct snd_kcontrol_new snd_gf1_pcm_volume_control1 = |
1da177e4 LT |
803 | { |
804 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
805 | .name = "GPCM Playback Volume", | |
806 | .info = snd_gf1_pcm_volume_info, | |
807 | .get = snd_gf1_pcm_volume_get, | |
808 | .put = snd_gf1_pcm_volume_put | |
809 | }; | |
810 | ||
5e2da206 | 811 | static struct snd_pcm_ops snd_gf1_pcm_playback_ops = { |
1da177e4 LT |
812 | .open = snd_gf1_pcm_playback_open, |
813 | .close = snd_gf1_pcm_playback_close, | |
814 | .ioctl = snd_pcm_lib_ioctl, | |
815 | .hw_params = snd_gf1_pcm_playback_hw_params, | |
816 | .hw_free = snd_gf1_pcm_playback_hw_free, | |
817 | .prepare = snd_gf1_pcm_playback_prepare, | |
818 | .trigger = snd_gf1_pcm_playback_trigger, | |
819 | .pointer = snd_gf1_pcm_playback_pointer, | |
820 | .copy = snd_gf1_pcm_playback_copy, | |
821 | .silence = snd_gf1_pcm_playback_silence, | |
822 | }; | |
823 | ||
5e2da206 | 824 | static struct snd_pcm_ops snd_gf1_pcm_capture_ops = { |
1da177e4 LT |
825 | .open = snd_gf1_pcm_capture_open, |
826 | .close = snd_gf1_pcm_capture_close, | |
827 | .ioctl = snd_pcm_lib_ioctl, | |
828 | .hw_params = snd_gf1_pcm_capture_hw_params, | |
829 | .hw_free = snd_gf1_pcm_capture_hw_free, | |
830 | .prepare = snd_gf1_pcm_capture_prepare, | |
831 | .trigger = snd_gf1_pcm_capture_trigger, | |
832 | .pointer = snd_gf1_pcm_capture_pointer, | |
833 | }; | |
834 | ||
5e2da206 | 835 | int snd_gf1_pcm_new(struct snd_gus_card * gus, int pcm_dev, int control_index, struct snd_pcm ** rpcm) |
1da177e4 | 836 | { |
5e2da206 TI |
837 | struct snd_card *card; |
838 | struct snd_kcontrol *kctl; | |
839 | struct snd_pcm *pcm; | |
840 | struct snd_pcm_substream *substream; | |
1da177e4 LT |
841 | int capture, err; |
842 | ||
843 | if (rpcm) | |
844 | *rpcm = NULL; | |
845 | card = gus->card; | |
846 | capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0; | |
847 | err = snd_pcm_new(card, | |
848 | gus->interwave ? "AMD InterWave" : "GF1", | |
849 | pcm_dev, | |
850 | gus->gf1.pcm_channels / 2, | |
851 | capture, | |
852 | &pcm); | |
853 | if (err < 0) | |
854 | return err; | |
855 | pcm->private_data = gus; | |
1da177e4 LT |
856 | /* playback setup */ |
857 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops); | |
858 | ||
859 | for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next) | |
860 | snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, | |
861 | snd_dma_isa_data(), | |
862 | 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024); | |
863 | ||
864 | pcm->info_flags = 0; | |
865 | pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; | |
866 | if (capture) { | |
867 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_gf1_pcm_capture_ops); | |
868 | if (gus->gf1.dma2 == gus->gf1.dma1) | |
869 | pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX; | |
870 | snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, | |
871 | SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(), | |
872 | 64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024); | |
873 | } | |
874 | strcpy(pcm->name, pcm->id); | |
875 | if (gus->interwave) { | |
876 | sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A'); | |
877 | } | |
878 | strcat(pcm->name, " (synth)"); | |
879 | gus->pcm = pcm; | |
880 | ||
881 | if (gus->codec_flag) | |
882 | kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus); | |
883 | else | |
884 | kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus); | |
885 | if ((err = snd_ctl_add(card, kctl)) < 0) | |
886 | return err; | |
887 | kctl->id.index = control_index; | |
888 | ||
889 | if (rpcm) | |
890 | *rpcm = pcm; | |
891 | return 0; | |
892 | } | |
893 |