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9b4ffa48 JK |
1 | /* |
2 | * Driver for audio on multifunction CS5535 companion device | |
3 | * Copyright (C) Jaya Kumar | |
4 | * | |
5 | * Based on Jaroslav Kysela and Takashi Iwai's examples. | |
6 | * This work was sponsored by CIS(M) Sdn Bhd. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | * todo: add be fmt support, spdif, pm | |
23 | */ | |
24 | ||
25 | #include <linux/init.h> | |
9b4ffa48 | 26 | #include <linux/pci.h> |
9b4ffa48 JK |
27 | #include <sound/core.h> |
28 | #include <sound/control.h> | |
29 | #include <sound/initval.h> | |
30 | #include <sound/asoundef.h> | |
31 | #include <sound/pcm.h> | |
32 | #include <sound/pcm_params.h> | |
33 | #include <sound/ac97_codec.h> | |
34 | #include "cs5535audio.h" | |
35 | ||
66f8df6b | 36 | static struct snd_pcm_hardware snd_cs5535audio_playback = |
9b4ffa48 JK |
37 | { |
38 | .info = ( | |
39 | SNDRV_PCM_INFO_MMAP | | |
40 | SNDRV_PCM_INFO_INTERLEAVED | | |
41 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
42 | SNDRV_PCM_INFO_MMAP_VALID | | |
43 | SNDRV_PCM_INFO_PAUSE | | |
9ac25594 | 44 | SNDRV_PCM_INFO_RESUME |
9b4ffa48 JK |
45 | ), |
46 | .formats = ( | |
47 | SNDRV_PCM_FMTBIT_S16_LE | |
48 | ), | |
49 | .rates = ( | |
50 | SNDRV_PCM_RATE_CONTINUOUS | | |
51 | SNDRV_PCM_RATE_8000_48000 | |
52 | ), | |
53 | .rate_min = 4000, | |
54 | .rate_max = 48000, | |
55 | .channels_min = 2, | |
56 | .channels_max = 2, | |
57 | .buffer_bytes_max = (128*1024), | |
58 | .period_bytes_min = 64, | |
59 | .period_bytes_max = (64*1024 - 16), | |
60 | .periods_min = 1, | |
61 | .periods_max = CS5535AUDIO_MAX_DESCRIPTORS, | |
62 | .fifo_size = 0, | |
63 | }; | |
64 | ||
66f8df6b | 65 | static struct snd_pcm_hardware snd_cs5535audio_capture = |
9b4ffa48 JK |
66 | { |
67 | .info = ( | |
68 | SNDRV_PCM_INFO_MMAP | | |
69 | SNDRV_PCM_INFO_INTERLEAVED | | |
70 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
b83f346b | 71 | SNDRV_PCM_INFO_MMAP_VALID |
9b4ffa48 JK |
72 | ), |
73 | .formats = ( | |
74 | SNDRV_PCM_FMTBIT_S16_LE | |
75 | ), | |
76 | .rates = ( | |
77 | SNDRV_PCM_RATE_CONTINUOUS | | |
78 | SNDRV_PCM_RATE_8000_48000 | |
79 | ), | |
80 | .rate_min = 4000, | |
81 | .rate_max = 48000, | |
82 | .channels_min = 2, | |
83 | .channels_max = 2, | |
84 | .buffer_bytes_max = (128*1024), | |
85 | .period_bytes_min = 64, | |
86 | .period_bytes_max = (64*1024 - 16), | |
87 | .periods_min = 1, | |
88 | .periods_max = CS5535AUDIO_MAX_DESCRIPTORS, | |
89 | .fifo_size = 0, | |
90 | }; | |
91 | ||
66f8df6b | 92 | static int snd_cs5535audio_playback_open(struct snd_pcm_substream *substream) |
9b4ffa48 JK |
93 | { |
94 | int err; | |
66f8df6b TI |
95 | struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); |
96 | struct snd_pcm_runtime *runtime = substream->runtime; | |
9b4ffa48 JK |
97 | |
98 | runtime->hw = snd_cs5535audio_playback; | |
0de27c10 TI |
99 | runtime->hw.rates = cs5535au->ac97->rates[AC97_RATES_FRONT_DAC]; |
100 | snd_pcm_limit_hw_rates(runtime); | |
9b4ffa48 JK |
101 | cs5535au->playback_substream = substream; |
102 | runtime->private_data = &(cs5535au->dmas[CS5535AUDIO_DMA_PLAYBACK]); | |
9b4ffa48 JK |
103 | if ((err = snd_pcm_hw_constraint_integer(runtime, |
104 | SNDRV_PCM_HW_PARAM_PERIODS)) < 0) | |
105 | return err; | |
106 | ||
107 | return 0; | |
108 | } | |
109 | ||
66f8df6b | 110 | static int snd_cs5535audio_playback_close(struct snd_pcm_substream *substream) |
9b4ffa48 JK |
111 | { |
112 | return 0; | |
113 | } | |
114 | ||
115 | #define CS5535AUDIO_DESC_LIST_SIZE \ | |
66f8df6b | 116 | PAGE_ALIGN(CS5535AUDIO_MAX_DESCRIPTORS * sizeof(struct cs5535audio_dma_desc)) |
9b4ffa48 | 117 | |
66f8df6b TI |
118 | static int cs5535audio_build_dma_packets(struct cs5535audio *cs5535au, |
119 | struct cs5535audio_dma *dma, | |
120 | struct snd_pcm_substream *substream, | |
121 | unsigned int periods, | |
122 | unsigned int period_bytes) | |
9b4ffa48 JK |
123 | { |
124 | unsigned int i; | |
125 | u32 addr, desc_addr, jmpprd_addr; | |
66f8df6b | 126 | struct cs5535audio_dma_desc *lastdesc; |
9b4ffa48 JK |
127 | |
128 | if (periods > CS5535AUDIO_MAX_DESCRIPTORS) | |
129 | return -ENOMEM; | |
130 | ||
131 | if (dma->desc_buf.area == NULL) { | |
132 | if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, | |
133 | snd_dma_pci_data(cs5535au->pci), | |
134 | CS5535AUDIO_DESC_LIST_SIZE+1, | |
135 | &dma->desc_buf) < 0) | |
136 | return -ENOMEM; | |
137 | dma->period_bytes = dma->periods = 0; | |
138 | } | |
139 | ||
140 | if (dma->periods == periods && dma->period_bytes == period_bytes) | |
141 | return 0; | |
142 | ||
d6e05edc | 143 | /* the u32 cast is okay because in snd*create we successfully told |
9b4ffa48 JK |
144 | pci alloc that we're only 32 bit capable so the uppper will be 0 */ |
145 | addr = (u32) substream->runtime->dma_addr; | |
146 | desc_addr = (u32) dma->desc_buf.addr; | |
147 | for (i = 0; i < periods; i++) { | |
66f8df6b TI |
148 | struct cs5535audio_dma_desc *desc = |
149 | &((struct cs5535audio_dma_desc *) dma->desc_buf.area)[i]; | |
9b4ffa48 | 150 | desc->addr = cpu_to_le32(addr); |
27533df8 | 151 | desc->size = cpu_to_le16(period_bytes); |
71276410 | 152 | desc->ctlreserved = cpu_to_le16(PRD_EOP); |
66f8df6b | 153 | desc_addr += sizeof(struct cs5535audio_dma_desc); |
9b4ffa48 JK |
154 | addr += period_bytes; |
155 | } | |
156 | /* we reserved one dummy descriptor at the end to do the PRD jump */ | |
66f8df6b | 157 | lastdesc = &((struct cs5535audio_dma_desc *) dma->desc_buf.area)[periods]; |
9b4ffa48 JK |
158 | lastdesc->addr = cpu_to_le32((u32) dma->desc_buf.addr); |
159 | lastdesc->size = 0; | |
71276410 | 160 | lastdesc->ctlreserved = cpu_to_le16(PRD_JMP); |
9b4ffa48 | 161 | jmpprd_addr = cpu_to_le32(lastdesc->addr + |
66f8df6b | 162 | (sizeof(struct cs5535audio_dma_desc)*periods)); |
9b4ffa48 | 163 | |
7abcacb0 | 164 | dma->substream = substream; |
9b4ffa48 JK |
165 | dma->period_bytes = period_bytes; |
166 | dma->periods = periods; | |
167 | spin_lock_irq(&cs5535au->reg_lock); | |
168 | dma->ops->disable_dma(cs5535au); | |
169 | dma->ops->setup_prd(cs5535au, jmpprd_addr); | |
170 | spin_unlock_irq(&cs5535au->reg_lock); | |
171 | return 0; | |
172 | } | |
173 | ||
66f8df6b | 174 | static void cs5535audio_playback_enable_dma(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
175 | { |
176 | cs_writeb(cs5535au, ACC_BM0_CMD, BM_CTL_EN); | |
177 | } | |
178 | ||
66f8df6b | 179 | static void cs5535audio_playback_disable_dma(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
180 | { |
181 | cs_writeb(cs5535au, ACC_BM0_CMD, 0); | |
182 | } | |
183 | ||
66f8df6b | 184 | static void cs5535audio_playback_pause_dma(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
185 | { |
186 | cs_writeb(cs5535au, ACC_BM0_CMD, BM_CTL_PAUSE); | |
187 | } | |
188 | ||
66f8df6b TI |
189 | static void cs5535audio_playback_setup_prd(struct cs5535audio *cs5535au, |
190 | u32 prd_addr) | |
9b4ffa48 JK |
191 | { |
192 | cs_writel(cs5535au, ACC_BM0_PRD, prd_addr); | |
193 | } | |
194 | ||
9ac25594 JK |
195 | static u32 cs5535audio_playback_read_prd(struct cs5535audio *cs5535au) |
196 | { | |
197 | return cs_readl(cs5535au, ACC_BM0_PRD); | |
198 | } | |
199 | ||
66f8df6b | 200 | static u32 cs5535audio_playback_read_dma_pntr(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
201 | { |
202 | return cs_readl(cs5535au, ACC_BM0_PNTR); | |
203 | } | |
204 | ||
66f8df6b | 205 | static void cs5535audio_capture_enable_dma(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
206 | { |
207 | cs_writeb(cs5535au, ACC_BM1_CMD, BM_CTL_EN); | |
208 | } | |
209 | ||
66f8df6b | 210 | static void cs5535audio_capture_disable_dma(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
211 | { |
212 | cs_writeb(cs5535au, ACC_BM1_CMD, 0); | |
213 | } | |
214 | ||
66f8df6b | 215 | static void cs5535audio_capture_pause_dma(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
216 | { |
217 | cs_writeb(cs5535au, ACC_BM1_CMD, BM_CTL_PAUSE); | |
218 | } | |
219 | ||
66f8df6b TI |
220 | static void cs5535audio_capture_setup_prd(struct cs5535audio *cs5535au, |
221 | u32 prd_addr) | |
9b4ffa48 JK |
222 | { |
223 | cs_writel(cs5535au, ACC_BM1_PRD, prd_addr); | |
224 | } | |
225 | ||
9ac25594 JK |
226 | static u32 cs5535audio_capture_read_prd(struct cs5535audio *cs5535au) |
227 | { | |
228 | return cs_readl(cs5535au, ACC_BM1_PRD); | |
229 | } | |
230 | ||
66f8df6b | 231 | static u32 cs5535audio_capture_read_dma_pntr(struct cs5535audio *cs5535au) |
9b4ffa48 JK |
232 | { |
233 | return cs_readl(cs5535au, ACC_BM1_PNTR); | |
234 | } | |
235 | ||
66f8df6b TI |
236 | static void cs5535audio_clear_dma_packets(struct cs5535audio *cs5535au, |
237 | struct cs5535audio_dma *dma, | |
238 | struct snd_pcm_substream *substream) | |
9b4ffa48 JK |
239 | { |
240 | snd_dma_free_pages(&dma->desc_buf); | |
241 | dma->desc_buf.area = NULL; | |
7abcacb0 | 242 | dma->substream = NULL; |
9b4ffa48 JK |
243 | } |
244 | ||
66f8df6b TI |
245 | static int snd_cs5535audio_hw_params(struct snd_pcm_substream *substream, |
246 | struct snd_pcm_hw_params *hw_params) | |
9b4ffa48 | 247 | { |
66f8df6b TI |
248 | struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); |
249 | struct cs5535audio_dma *dma = substream->runtime->private_data; | |
9b4ffa48 JK |
250 | int err; |
251 | ||
252 | err = snd_pcm_lib_malloc_pages(substream, | |
253 | params_buffer_bytes(hw_params)); | |
254 | if (err < 0) | |
255 | return err; | |
256 | dma->buf_addr = substream->runtime->dma_addr; | |
257 | dma->buf_bytes = params_buffer_bytes(hw_params); | |
258 | ||
259 | err = cs5535audio_build_dma_packets(cs5535au, dma, substream, | |
66f8df6b TI |
260 | params_periods(hw_params), |
261 | params_period_bytes(hw_params)); | |
b035ce0f JK |
262 | if (!err) |
263 | dma->pcm_open_flag = 1; | |
264 | ||
9b4ffa48 JK |
265 | return err; |
266 | } | |
267 | ||
66f8df6b | 268 | static int snd_cs5535audio_hw_free(struct snd_pcm_substream *substream) |
9b4ffa48 | 269 | { |
66f8df6b TI |
270 | struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); |
271 | struct cs5535audio_dma *dma = substream->runtime->private_data; | |
9b4ffa48 | 272 | |
b035ce0f JK |
273 | if (dma->pcm_open_flag) { |
274 | if (substream == cs5535au->playback_substream) | |
275 | snd_ac97_update_power(cs5535au->ac97, | |
276 | AC97_PCM_FRONT_DAC_RATE, 0); | |
277 | else | |
278 | snd_ac97_update_power(cs5535au->ac97, | |
279 | AC97_PCM_LR_ADC_RATE, 0); | |
280 | dma->pcm_open_flag = 0; | |
281 | } | |
9b4ffa48 JK |
282 | cs5535audio_clear_dma_packets(cs5535au, dma, substream); |
283 | return snd_pcm_lib_free_pages(substream); | |
284 | } | |
285 | ||
66f8df6b | 286 | static int snd_cs5535audio_playback_prepare(struct snd_pcm_substream *substream) |
9b4ffa48 | 287 | { |
66f8df6b | 288 | struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); |
9b4ffa48 | 289 | return snd_ac97_set_rate(cs5535au->ac97, AC97_PCM_FRONT_DAC_RATE, |
66f8df6b | 290 | substream->runtime->rate); |
9b4ffa48 JK |
291 | } |
292 | ||
66f8df6b | 293 | static int snd_cs5535audio_trigger(struct snd_pcm_substream *substream, int cmd) |
9b4ffa48 | 294 | { |
66f8df6b TI |
295 | struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); |
296 | struct cs5535audio_dma *dma = substream->runtime->private_data; | |
3e873174 | 297 | int err = 0; |
9b4ffa48 | 298 | |
3e873174 | 299 | spin_lock(&cs5535au->reg_lock); |
9b4ffa48 | 300 | switch (cmd) { |
3e873174 TI |
301 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
302 | dma->ops->pause_dma(cs5535au); | |
303 | break; | |
304 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
305 | dma->ops->enable_dma(cs5535au); | |
306 | break; | |
307 | case SNDRV_PCM_TRIGGER_START: | |
308 | dma->ops->enable_dma(cs5535au); | |
309 | break; | |
9ac25594 JK |
310 | case SNDRV_PCM_TRIGGER_RESUME: |
311 | dma->ops->enable_dma(cs5535au); | |
9ac25594 | 312 | break; |
3e873174 TI |
313 | case SNDRV_PCM_TRIGGER_STOP: |
314 | dma->ops->disable_dma(cs5535au); | |
315 | break; | |
9ac25594 JK |
316 | case SNDRV_PCM_TRIGGER_SUSPEND: |
317 | dma->ops->disable_dma(cs5535au); | |
9ac25594 | 318 | break; |
3e873174 | 319 | default: |
00980aa9 | 320 | dev_err(cs5535au->card->dev, "unhandled trigger\n"); |
3e873174 TI |
321 | err = -EINVAL; |
322 | break; | |
9b4ffa48 | 323 | } |
3e873174 TI |
324 | spin_unlock(&cs5535au->reg_lock); |
325 | return err; | |
9b4ffa48 JK |
326 | } |
327 | ||
66f8df6b | 328 | static snd_pcm_uframes_t snd_cs5535audio_pcm_pointer(struct snd_pcm_substream |
9b4ffa48 JK |
329 | *substream) |
330 | { | |
66f8df6b | 331 | struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); |
9b4ffa48 | 332 | u32 curdma; |
66f8df6b | 333 | struct cs5535audio_dma *dma; |
9b4ffa48 JK |
334 | |
335 | dma = substream->runtime->private_data; | |
336 | curdma = dma->ops->read_dma_pntr(cs5535au); | |
337 | if (curdma < dma->buf_addr) { | |
00980aa9 | 338 | dev_err(cs5535au->card->dev, "curdma=%x < %x bufaddr.\n", |
9b4ffa48 JK |
339 | curdma, dma->buf_addr); |
340 | return 0; | |
341 | } | |
342 | curdma -= dma->buf_addr; | |
343 | if (curdma >= dma->buf_bytes) { | |
00980aa9 | 344 | dev_err(cs5535au->card->dev, "diff=%x >= %x buf_bytes.\n", |
9b4ffa48 JK |
345 | curdma, dma->buf_bytes); |
346 | return 0; | |
347 | } | |
348 | return bytes_to_frames(substream->runtime, curdma); | |
349 | } | |
350 | ||
66f8df6b | 351 | static int snd_cs5535audio_capture_open(struct snd_pcm_substream *substream) |
9b4ffa48 JK |
352 | { |
353 | int err; | |
66f8df6b TI |
354 | struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); |
355 | struct snd_pcm_runtime *runtime = substream->runtime; | |
9b4ffa48 JK |
356 | |
357 | runtime->hw = snd_cs5535audio_capture; | |
0de27c10 TI |
358 | runtime->hw.rates = cs5535au->ac97->rates[AC97_RATES_ADC]; |
359 | snd_pcm_limit_hw_rates(runtime); | |
9b4ffa48 JK |
360 | cs5535au->capture_substream = substream; |
361 | runtime->private_data = &(cs5535au->dmas[CS5535AUDIO_DMA_CAPTURE]); | |
9b4ffa48 JK |
362 | if ((err = snd_pcm_hw_constraint_integer(runtime, |
363 | SNDRV_PCM_HW_PARAM_PERIODS)) < 0) | |
364 | return err; | |
bf1e5278 | 365 | olpc_capture_open(cs5535au->ac97); |
9b4ffa48 JK |
366 | return 0; |
367 | } | |
368 | ||
66f8df6b | 369 | static int snd_cs5535audio_capture_close(struct snd_pcm_substream *substream) |
9b4ffa48 | 370 | { |
e463ae1d | 371 | struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); |
bf1e5278 | 372 | olpc_capture_close(cs5535au->ac97); |
9b4ffa48 JK |
373 | return 0; |
374 | } | |
375 | ||
66f8df6b | 376 | static int snd_cs5535audio_capture_prepare(struct snd_pcm_substream *substream) |
9b4ffa48 | 377 | { |
66f8df6b | 378 | struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream); |
9b4ffa48 | 379 | return snd_ac97_set_rate(cs5535au->ac97, AC97_PCM_LR_ADC_RATE, |
66f8df6b | 380 | substream->runtime->rate); |
9b4ffa48 JK |
381 | } |
382 | ||
9d5262ae | 383 | static const struct snd_pcm_ops snd_cs5535audio_playback_ops = { |
9b4ffa48 JK |
384 | .open = snd_cs5535audio_playback_open, |
385 | .close = snd_cs5535audio_playback_close, | |
386 | .ioctl = snd_pcm_lib_ioctl, | |
387 | .hw_params = snd_cs5535audio_hw_params, | |
388 | .hw_free = snd_cs5535audio_hw_free, | |
389 | .prepare = snd_cs5535audio_playback_prepare, | |
390 | .trigger = snd_cs5535audio_trigger, | |
391 | .pointer = snd_cs5535audio_pcm_pointer, | |
392 | }; | |
393 | ||
9d5262ae | 394 | static const struct snd_pcm_ops snd_cs5535audio_capture_ops = { |
9b4ffa48 JK |
395 | .open = snd_cs5535audio_capture_open, |
396 | .close = snd_cs5535audio_capture_close, | |
397 | .ioctl = snd_pcm_lib_ioctl, | |
398 | .hw_params = snd_cs5535audio_hw_params, | |
399 | .hw_free = snd_cs5535audio_hw_free, | |
400 | .prepare = snd_cs5535audio_capture_prepare, | |
401 | .trigger = snd_cs5535audio_trigger, | |
402 | .pointer = snd_cs5535audio_pcm_pointer, | |
403 | }; | |
404 | ||
55a8aeef | 405 | static const struct cs5535audio_dma_ops snd_cs5535audio_playback_dma_ops = { |
9b4ffa48 JK |
406 | .type = CS5535AUDIO_DMA_PLAYBACK, |
407 | .enable_dma = cs5535audio_playback_enable_dma, | |
408 | .disable_dma = cs5535audio_playback_disable_dma, | |
409 | .setup_prd = cs5535audio_playback_setup_prd, | |
9ac25594 | 410 | .read_prd = cs5535audio_playback_read_prd, |
9b4ffa48 JK |
411 | .pause_dma = cs5535audio_playback_pause_dma, |
412 | .read_dma_pntr = cs5535audio_playback_read_dma_pntr, | |
413 | }; | |
414 | ||
55a8aeef | 415 | static const struct cs5535audio_dma_ops snd_cs5535audio_capture_dma_ops = { |
9b4ffa48 JK |
416 | .type = CS5535AUDIO_DMA_CAPTURE, |
417 | .enable_dma = cs5535audio_capture_enable_dma, | |
418 | .disable_dma = cs5535audio_capture_disable_dma, | |
419 | .setup_prd = cs5535audio_capture_setup_prd, | |
9ac25594 | 420 | .read_prd = cs5535audio_capture_read_prd, |
9b4ffa48 JK |
421 | .pause_dma = cs5535audio_capture_pause_dma, |
422 | .read_dma_pntr = cs5535audio_capture_read_dma_pntr, | |
423 | }; | |
424 | ||
e23e7a14 | 425 | int snd_cs5535audio_pcm(struct cs5535audio *cs5535au) |
9b4ffa48 | 426 | { |
66f8df6b | 427 | struct snd_pcm *pcm; |
9b4ffa48 JK |
428 | int err; |
429 | ||
430 | err = snd_pcm_new(cs5535au->card, "CS5535 Audio", 0, 1, 1, &pcm); | |
431 | if (err < 0) | |
432 | return err; | |
433 | ||
434 | cs5535au->dmas[CS5535AUDIO_DMA_PLAYBACK].ops = | |
435 | &snd_cs5535audio_playback_dma_ops; | |
436 | cs5535au->dmas[CS5535AUDIO_DMA_CAPTURE].ops = | |
437 | &snd_cs5535audio_capture_dma_ops; | |
438 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, | |
439 | &snd_cs5535audio_playback_ops); | |
440 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, | |
441 | &snd_cs5535audio_capture_ops); | |
442 | ||
443 | pcm->private_data = cs5535au; | |
9b4ffa48 JK |
444 | pcm->info_flags = 0; |
445 | strcpy(pcm->name, "CS5535 Audio"); | |
446 | ||
447 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, | |
448 | snd_dma_pci_data(cs5535au->pci), | |
449 | 64*1024, 128*1024); | |
9ac25594 | 450 | cs5535au->pcm = pcm; |
9b4ffa48 JK |
451 | |
452 | return 0; | |
453 | } | |
454 |