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1da177e4 LT |
1 | /* |
2 | * Copyright (c) by Jaroslav Kysela <perex@suse.cz> | |
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 | ||
45 | typedef struct { | |
46 | snd_gus_card_t * gus; | |
47 | snd_pcm_substream_t * substream; | |
48 | spinlock_t lock; | |
49 | unsigned int voices; | |
50 | snd_gus_voice_t *pvoices[2]; | |
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; | |
61 | } gus_pcm_private_t; | |
62 | ||
63 | static int snd_gf1_pcm_use_dma = 1; | |
64 | ||
65 | static void snd_gf1_pcm_block_change_ack(snd_gus_card_t * gus, void *private_data) | |
66 | { | |
67 | gus_pcm_private_t *pcmp = private_data; | |
68 | ||
69 | if (pcmp) { | |
70 | atomic_dec(&pcmp->dma_count); | |
71 | wake_up(&pcmp->sleep); | |
72 | } | |
73 | } | |
74 | ||
75 | static int snd_gf1_pcm_block_change(snd_pcm_substream_t * substream, | |
76 | unsigned int offset, | |
77 | unsigned int addr, | |
78 | unsigned int count) | |
79 | { | |
80 | snd_gf1_dma_block_t block; | |
81 | snd_pcm_runtime_t *runtime = substream->runtime; | |
82 | gus_pcm_private_t *pcmp = runtime->private_data; | |
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 | ||
104 | static void snd_gf1_pcm_trigger_up(snd_pcm_substream_t * substream) | |
105 | { | |
106 | snd_pcm_runtime_t *runtime = substream->runtime; | |
107 | gus_pcm_private_t *pcmp = runtime->private_data; | |
108 | snd_gus_card_t * gus = pcmp->gus; | |
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 | ||
117 | if (substream == NULL) | |
118 | return; | |
119 | spin_lock_irqsave(&pcmp->lock, flags); | |
120 | if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) { | |
121 | spin_unlock_irqrestore(&pcmp->lock, flags); | |
122 | return; | |
123 | } | |
124 | pcmp->flags |= SNDRV_GF1_PCM_PFLG_ACTIVE; | |
125 | pcmp->final_volume = 0; | |
126 | spin_unlock_irqrestore(&pcmp->lock, flags); | |
127 | rate = snd_gf1_translate_freq(gus, runtime->rate << 4); | |
128 | /* enable WAVE IRQ */ | |
129 | voice_ctrl = snd_pcm_format_width(runtime->format) == 16 ? 0x24 : 0x20; | |
130 | /* enable RAMP IRQ + rollover */ | |
131 | ramp_ctrl = 0x24; | |
132 | if (pcmp->blocks == 1) { | |
133 | voice_ctrl |= 0x08; /* loop enable */ | |
134 | ramp_ctrl &= ~0x04; /* disable rollover */ | |
135 | } | |
136 | for (voice = 0; voice < pcmp->voices; voice++) { | |
137 | begin = pcmp->memory + voice * (pcmp->dma_size / runtime->channels); | |
138 | curr = begin + (pcmp->bpos * pcmp->block_size) / runtime->channels; | |
139 | end = curr + (pcmp->block_size / runtime->channels); | |
140 | end -= snd_pcm_format_width(runtime->format) == 16 ? 2 : 1; | |
141 | // snd_printk("init: curr=0x%x, begin=0x%x, end=0x%x, ctrl=0x%x, ramp=0x%x, rate=0x%x\n", curr, begin, end, voice_ctrl, ramp_ctrl, rate); | |
142 | pan = runtime->channels == 2 ? (!voice ? 1 : 14) : 8; | |
143 | vol = !voice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right; | |
144 | spin_lock_irqsave(&gus->reg_lock, flags); | |
145 | snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number); | |
146 | snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, pan); | |
147 | snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, rate); | |
148 | snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, begin << 4, voice_ctrl & 4); | |
149 | snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4); | |
150 | snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, curr << 4, voice_ctrl & 4); | |
151 | snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME << 4); | |
152 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0x2f); | |
153 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET); | |
154 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, vol >> 8); | |
155 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); | |
156 | if (!gus->gf1.enh_mode) { | |
157 | snd_gf1_delay(gus); | |
158 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); | |
159 | } | |
160 | spin_unlock_irqrestore(&gus->reg_lock, flags); | |
161 | } | |
162 | spin_lock_irqsave(&gus->reg_lock, flags); | |
163 | for (voice = 0; voice < pcmp->voices; voice++) { | |
164 | snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number); | |
165 | if (gus->gf1.enh_mode) | |
166 | snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, 0x00); /* deactivate voice */ | |
167 | snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); | |
168 | voice_ctrl &= ~0x20; | |
169 | } | |
170 | voice_ctrl |= 0x20; | |
171 | if (!gus->gf1.enh_mode) { | |
172 | snd_gf1_delay(gus); | |
173 | for (voice = 0; voice < pcmp->voices; voice++) { | |
174 | snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number); | |
175 | snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); | |
176 | voice_ctrl &= ~0x20; /* disable IRQ for next voice */ | |
177 | } | |
178 | } | |
179 | spin_unlock_irqrestore(&gus->reg_lock, flags); | |
180 | } | |
181 | ||
182 | static void snd_gf1_pcm_interrupt_wave(snd_gus_card_t * gus, snd_gus_voice_t *pvoice) | |
183 | { | |
184 | gus_pcm_private_t * pcmp; | |
185 | snd_pcm_runtime_t * runtime; | |
186 | unsigned char voice_ctrl, ramp_ctrl; | |
187 | unsigned int idx; | |
188 | unsigned int end, step; | |
189 | ||
190 | if (!pvoice->private_data) { | |
191 | snd_printd("snd_gf1_pcm: unknown wave irq?\n"); | |
192 | snd_gf1_smart_stop_voice(gus, pvoice->number); | |
193 | return; | |
194 | } | |
195 | pcmp = pvoice->private_data; | |
196 | if (pcmp == NULL) { | |
197 | snd_printd("snd_gf1_pcm: unknown wave irq?\n"); | |
198 | snd_gf1_smart_stop_voice(gus, pvoice->number); | |
199 | return; | |
200 | } | |
201 | gus = pcmp->gus; | |
202 | runtime = pcmp->substream->runtime; | |
203 | ||
204 | spin_lock(&gus->reg_lock); | |
205 | snd_gf1_select_voice(gus, pvoice->number); | |
206 | voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b; | |
207 | ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03; | |
208 | #if 0 | |
209 | snd_gf1_select_voice(gus, pvoice->number); | |
210 | printk("position = 0x%x\n", (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4)); | |
211 | snd_gf1_select_voice(gus, pcmp->pvoices[1]->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, pvoice->number); | |
214 | #endif | |
215 | pcmp->bpos++; | |
216 | pcmp->bpos %= pcmp->blocks; | |
217 | if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */ | |
218 | voice_ctrl |= 0x08; /* enable loop */ | |
219 | } else { | |
220 | ramp_ctrl |= 0x04; /* enable rollover */ | |
221 | } | |
222 | end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels); | |
223 | end -= voice_ctrl & 4 ? 2 : 1; | |
224 | step = pcmp->dma_size / runtime->channels; | |
225 | voice_ctrl |= 0x20; | |
226 | if (!pcmp->final_volume) { | |
227 | ramp_ctrl |= 0x20; | |
228 | ramp_ctrl &= ~0x03; | |
229 | } | |
230 | for (idx = 0; idx < pcmp->voices; idx++, end += step) { | |
231 | snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number); | |
232 | snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4); | |
233 | snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl); | |
234 | snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl); | |
235 | voice_ctrl &= ~0x20; | |
236 | } | |
237 | if (!gus->gf1.enh_mode) { | |
238 | snd_gf1_delay(gus); | |
239 | voice_ctrl |= 0x20; | |
240 | for (idx = 0; idx < pcmp->voices; idx++) { | |
241 | snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number); | |
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 | } | |
247 | spin_unlock(&gus->reg_lock); | |
248 | ||
249 | snd_pcm_period_elapsed(pcmp->substream); | |
250 | #if 0 | |
251 | if ((runtime->flags & SNDRV_PCM_FLG_MMAP) && | |
252 | *runtime->state == SNDRV_PCM_STATE_RUNNING) { | |
253 | end = pcmp->bpos * pcmp->block_size; | |
254 | if (runtime->channels > 1) { | |
255 | snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + (end / 2), pcmp->block_size / 2); | |
256 | snd_gf1_pcm_block_change(pcmp->substream, end + (pcmp->block_size / 2), pcmp->memory + (pcmp->dma_size / 2) + (end / 2), pcmp->block_size / 2); | |
257 | } else { | |
258 | snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size); | |
259 | } | |
260 | } | |
261 | #endif | |
262 | } | |
263 | ||
264 | static void snd_gf1_pcm_interrupt_volume(snd_gus_card_t * gus, snd_gus_voice_t * pvoice) | |
265 | { | |
266 | unsigned short vol; | |
267 | int cvoice; | |
268 | gus_pcm_private_t *pcmp = pvoice->private_data; | |
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 | ||
292 | static void snd_gf1_pcm_volume_change(snd_gus_card_t * gus) | |
293 | { | |
294 | } | |
295 | ||
296 | static int snd_gf1_pcm_poke_block(snd_gus_card_t *gus, unsigned char *buf, | |
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 | ||
344 | static int snd_gf1_pcm_playback_copy(snd_pcm_substream_t *substream, | |
345 | int voice, | |
346 | snd_pcm_uframes_t pos, | |
347 | void __user *src, | |
348 | snd_pcm_uframes_t count) | |
349 | { | |
350 | snd_pcm_runtime_t *runtime = substream->runtime; | |
351 | gus_pcm_private_t *pcmp = runtime->private_data; | |
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 { | |
363 | snd_gus_card_t *gus = pcmp->gus; | |
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 | ||
374 | static int snd_gf1_pcm_playback_silence(snd_pcm_substream_t *substream, | |
375 | int voice, | |
376 | snd_pcm_uframes_t pos, | |
377 | snd_pcm_uframes_t count) | |
378 | { | |
379 | snd_pcm_runtime_t *runtime = substream->runtime; | |
380 | gus_pcm_private_t *pcmp = runtime->private_data; | |
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 { | |
391 | snd_gus_card_t *gus = pcmp->gus; | |
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 | ||
402 | static int snd_gf1_pcm_playback_hw_params(snd_pcm_substream_t * substream, | |
403 | snd_pcm_hw_params_t * hw_params) | |
404 | { | |
405 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
406 | snd_pcm_runtime_t *runtime = substream->runtime; | |
407 | gus_pcm_private_t *pcmp = runtime->private_data; | |
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 */ | |
413 | snd_gf1_mem_block_t *block; | |
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 | ||
451 | static int snd_gf1_pcm_playback_hw_free(snd_pcm_substream_t * substream) | |
452 | { | |
453 | snd_pcm_runtime_t *runtime = substream->runtime; | |
454 | gus_pcm_private_t *pcmp = runtime->private_data; | |
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 | ||
472 | static int snd_gf1_pcm_playback_prepare(snd_pcm_substream_t * substream) | |
473 | { | |
474 | snd_pcm_runtime_t *runtime = substream->runtime; | |
475 | gus_pcm_private_t *pcmp = runtime->private_data; | |
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 | ||
484 | static int snd_gf1_pcm_playback_trigger(snd_pcm_substream_t * substream, | |
485 | int cmd) | |
486 | { | |
487 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
488 | snd_pcm_runtime_t *runtime = substream->runtime; | |
489 | gus_pcm_private_t *pcmp = runtime->private_data; | |
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 | ||
510 | static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(snd_pcm_substream_t * substream) | |
511 | { | |
512 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
513 | snd_pcm_runtime_t *runtime = substream->runtime; | |
514 | gus_pcm_private_t *pcmp = runtime->private_data; | |
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 | ||
532 | static ratnum_t clock = { | |
533 | .num = 9878400/16, | |
534 | .den_min = 2, | |
535 | .den_max = 257, | |
536 | .den_step = 1, | |
537 | }; | |
538 | ||
539 | static snd_pcm_hw_constraint_ratnums_t hw_constraints_clocks = { | |
540 | .nrats = 1, | |
541 | .rats = &clock, | |
542 | }; | |
543 | ||
544 | static int snd_gf1_pcm_capture_hw_params(snd_pcm_substream_t * substream, | |
545 | snd_pcm_hw_params_t * hw_params) | |
546 | { | |
547 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
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 | ||
562 | static int snd_gf1_pcm_capture_hw_free(snd_pcm_substream_t * substream) | |
563 | { | |
564 | return snd_pcm_lib_free_pages(substream); | |
565 | } | |
566 | ||
567 | static int snd_gf1_pcm_capture_prepare(snd_pcm_substream_t * substream) | |
568 | { | |
569 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
570 | snd_pcm_runtime_t *runtime = substream->runtime; | |
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 | ||
579 | static int snd_gf1_pcm_capture_trigger(snd_pcm_substream_t * substream, | |
580 | int cmd) | |
581 | { | |
582 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
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 | ||
600 | static snd_pcm_uframes_t snd_gf1_pcm_capture_pointer(snd_pcm_substream_t * substream) | |
601 | { | |
602 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
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 | ||
608 | static void snd_gf1_pcm_interrupt_dma_read(snd_gus_card_t * gus) | |
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 | ||
620 | static snd_pcm_hardware_t snd_gf1_pcm_playback = | |
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 | ||
638 | static snd_pcm_hardware_t snd_gf1_pcm_capture = | |
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 | ||
656 | static void snd_gf1_pcm_playback_free(snd_pcm_runtime_t *runtime) | |
657 | { | |
4d572776 | 658 | kfree(runtime->private_data); |
1da177e4 LT |
659 | } |
660 | ||
661 | static int snd_gf1_pcm_playback_open(snd_pcm_substream_t *substream) | |
662 | { | |
663 | gus_pcm_private_t *pcmp; | |
664 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
665 | snd_pcm_runtime_t *runtime = substream->runtime; | |
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 | ||
693 | static int snd_gf1_pcm_playback_close(snd_pcm_substream_t * substream) | |
694 | { | |
695 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
696 | snd_pcm_runtime_t *runtime = substream->runtime; | |
697 | gus_pcm_private_t *pcmp = runtime->private_data; | |
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 | ||
706 | static int snd_gf1_pcm_capture_open(snd_pcm_substream_t * substream) | |
707 | { | |
708 | snd_pcm_runtime_t *runtime = substream->runtime; | |
709 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
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 | ||
721 | static int snd_gf1_pcm_capture_close(snd_pcm_substream_t * substream) | |
722 | { | |
723 | snd_gus_card_t *gus = snd_pcm_substream_chip(substream); | |
724 | ||
725 | gus->pcm_cap_substream = NULL; | |
726 | snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ); | |
727 | return 0; | |
728 | } | |
729 | ||
730 | static void snd_gf1_pcm_free(snd_pcm_t *pcm) | |
731 | { | |
732 | snd_gus_card_t *gus = pcm->private_data; | |
733 | gus->pcm = NULL; | |
734 | snd_pcm_lib_preallocate_free_for_all(pcm); | |
735 | } | |
736 | ||
737 | static int snd_gf1_pcm_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) | |
738 | { | |
739 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
740 | uinfo->count = 2; | |
741 | uinfo->value.integer.min = 0; | |
742 | uinfo->value.integer.max = 127; | |
743 | return 0; | |
744 | } | |
745 | ||
746 | static int snd_gf1_pcm_volume_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) | |
747 | { | |
748 | snd_gus_card_t *gus = snd_kcontrol_chip(kcontrol); | |
749 | unsigned long flags; | |
750 | ||
751 | spin_lock_irqsave(&gus->pcm_volume_level_lock, flags); | |
752 | ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1; | |
753 | ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1; | |
754 | spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags); | |
755 | return 0; | |
756 | } | |
757 | ||
758 | static int snd_gf1_pcm_volume_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) | |
759 | { | |
760 | snd_gus_card_t *gus = snd_kcontrol_chip(kcontrol); | |
761 | unsigned long flags; | |
762 | int change; | |
763 | unsigned int idx; | |
764 | unsigned short val1, val2, vol; | |
765 | gus_pcm_private_t *pcmp; | |
766 | snd_gus_voice_t *pvoice; | |
767 | ||
768 | val1 = ucontrol->value.integer.value[0] & 127; | |
769 | val2 = ucontrol->value.integer.value[1] & 127; | |
770 | spin_lock_irqsave(&gus->pcm_volume_level_lock, flags); | |
771 | change = val1 != gus->gf1.pcm_volume_level_left1 || | |
772 | val2 != gus->gf1.pcm_volume_level_right1; | |
773 | gus->gf1.pcm_volume_level_left1 = val1; | |
774 | gus->gf1.pcm_volume_level_right1 = val2; | |
775 | gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4; | |
776 | gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4; | |
777 | spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags); | |
778 | /* are we active? */ | |
779 | spin_lock_irqsave(&gus->voice_alloc, flags); | |
780 | for (idx = 0; idx < 32; idx++) { | |
781 | pvoice = &gus->gf1.voices[idx]; | |
782 | if (!pvoice->pcm) | |
783 | continue; | |
784 | pcmp = pvoice->private_data; | |
785 | if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE)) | |
786 | continue; | |
787 | /* load real volume - better precision */ | |
788 | spin_lock_irqsave(&gus->reg_lock, flags); | |
789 | snd_gf1_select_voice(gus, pvoice->number); | |
790 | snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL); | |
791 | vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right; | |
792 | snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol); | |
793 | pcmp->final_volume = 1; | |
794 | spin_unlock_irqrestore(&gus->reg_lock, flags); | |
795 | } | |
796 | spin_unlock_irqrestore(&gus->voice_alloc, flags); | |
797 | return change; | |
798 | } | |
799 | ||
800 | static snd_kcontrol_new_t snd_gf1_pcm_volume_control = | |
801 | { | |
802 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
803 | .name = "PCM Playback Volume", | |
804 | .info = snd_gf1_pcm_volume_info, | |
805 | .get = snd_gf1_pcm_volume_get, | |
806 | .put = snd_gf1_pcm_volume_put | |
807 | }; | |
808 | ||
809 | static snd_kcontrol_new_t snd_gf1_pcm_volume_control1 = | |
810 | { | |
811 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
812 | .name = "GPCM Playback Volume", | |
813 | .info = snd_gf1_pcm_volume_info, | |
814 | .get = snd_gf1_pcm_volume_get, | |
815 | .put = snd_gf1_pcm_volume_put | |
816 | }; | |
817 | ||
818 | static snd_pcm_ops_t snd_gf1_pcm_playback_ops = { | |
819 | .open = snd_gf1_pcm_playback_open, | |
820 | .close = snd_gf1_pcm_playback_close, | |
821 | .ioctl = snd_pcm_lib_ioctl, | |
822 | .hw_params = snd_gf1_pcm_playback_hw_params, | |
823 | .hw_free = snd_gf1_pcm_playback_hw_free, | |
824 | .prepare = snd_gf1_pcm_playback_prepare, | |
825 | .trigger = snd_gf1_pcm_playback_trigger, | |
826 | .pointer = snd_gf1_pcm_playback_pointer, | |
827 | .copy = snd_gf1_pcm_playback_copy, | |
828 | .silence = snd_gf1_pcm_playback_silence, | |
829 | }; | |
830 | ||
831 | static snd_pcm_ops_t snd_gf1_pcm_capture_ops = { | |
832 | .open = snd_gf1_pcm_capture_open, | |
833 | .close = snd_gf1_pcm_capture_close, | |
834 | .ioctl = snd_pcm_lib_ioctl, | |
835 | .hw_params = snd_gf1_pcm_capture_hw_params, | |
836 | .hw_free = snd_gf1_pcm_capture_hw_free, | |
837 | .prepare = snd_gf1_pcm_capture_prepare, | |
838 | .trigger = snd_gf1_pcm_capture_trigger, | |
839 | .pointer = snd_gf1_pcm_capture_pointer, | |
840 | }; | |
841 | ||
842 | int snd_gf1_pcm_new(snd_gus_card_t * gus, int pcm_dev, int control_index, snd_pcm_t ** rpcm) | |
843 | { | |
844 | snd_card_t *card; | |
845 | snd_kcontrol_t *kctl; | |
846 | snd_pcm_t *pcm; | |
847 | snd_pcm_substream_t *substream; | |
848 | int capture, err; | |
849 | ||
850 | if (rpcm) | |
851 | *rpcm = NULL; | |
852 | card = gus->card; | |
853 | capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0; | |
854 | err = snd_pcm_new(card, | |
855 | gus->interwave ? "AMD InterWave" : "GF1", | |
856 | pcm_dev, | |
857 | gus->gf1.pcm_channels / 2, | |
858 | capture, | |
859 | &pcm); | |
860 | if (err < 0) | |
861 | return err; | |
862 | pcm->private_data = gus; | |
863 | pcm->private_free = snd_gf1_pcm_free; | |
864 | /* playback setup */ | |
865 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops); | |
866 | ||
867 | for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next) | |
868 | snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV, | |
869 | snd_dma_isa_data(), | |
870 | 64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024); | |
871 | ||
872 | pcm->info_flags = 0; | |
873 | pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; | |
874 | if (capture) { | |
875 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_gf1_pcm_capture_ops); | |
876 | if (gus->gf1.dma2 == gus->gf1.dma1) | |
877 | pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX; | |
878 | snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, | |
879 | SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(), | |
880 | 64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024); | |
881 | } | |
882 | strcpy(pcm->name, pcm->id); | |
883 | if (gus->interwave) { | |
884 | sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A'); | |
885 | } | |
886 | strcat(pcm->name, " (synth)"); | |
887 | gus->pcm = pcm; | |
888 | ||
889 | if (gus->codec_flag) | |
890 | kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus); | |
891 | else | |
892 | kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus); | |
893 | if ((err = snd_ctl_add(card, kctl)) < 0) | |
894 | return err; | |
895 | kctl->id.index = control_index; | |
896 | ||
897 | if (rpcm) | |
898 | *rpcm = pcm; | |
899 | return 0; | |
900 | } | |
901 |