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-rw-r--r--sound/soc/pxa/corgi.c84
1 files changed, 53 insertions, 31 deletions
diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c
index 2b1c6e94d1e4..5ee51a994ac3 100644
--- a/sound/soc/pxa/corgi.c
+++ b/sound/soc/pxa/corgi.c
@@ -37,6 +37,7 @@
37 37
38#include "../codecs/wm8731.h" 38#include "../codecs/wm8731.h"
39#include "pxa2xx-pcm.h" 39#include "pxa2xx-pcm.h"
40#include "pxa2xx-i2s.h"
40 41
41#define CORGI_HP 0 42#define CORGI_HP 0
42#define CORGI_MIC 1 43#define CORGI_MIC 1
@@ -119,8 +120,59 @@ static int corgi_shutdown(struct snd_pcm_substream *substream)
119 return 0; 120 return 0;
120} 121}
121 122
123static int corgi_hw_params(struct snd_pcm_substream *substream,
124 struct snd_pcm_hw_params *params)
125{
126 struct snd_soc_pcm_runtime *rtd = substream->private_data;
127 struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
128 struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
129 unsigned int clk = 0;
130 int ret = 0;
131
132 switch (params_rate(params)) {
133 case 8000:
134 case 16000:
135 case 48000:
136 case 96000:
137 clk = 12288000;
138 break;
139 case 11025:
140 case 22050:
141 case 44100:
142 clk = 11289600;
143 break;
144 }
145
146 /* set codec DAI configuration */
147 ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
148 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
149 if (ret < 0)
150 return ret;
151
152 /* set cpu DAI configuration */
153 ret = cpu_dai->dai_ops.set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
154 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
155 if (ret < 0)
156 return ret;
157
158 /* set the codec system clock for DAC and ADC */
159 ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8731_SYSCLK, clk,
160 SND_SOC_CLOCK_IN);
161 if (ret < 0)
162 return ret;
163
164 /* set the I2S system clock as input (unused) */
165 ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
166 SND_SOC_CLOCK_IN);
167 if (ret < 0)
168 return ret;
169
170 return 0;
171}
172
122static struct snd_soc_ops corgi_ops = { 173static struct snd_soc_ops corgi_ops = {
123 .startup = corgi_startup, 174 .startup = corgi_startup,
175 .hw_params = corgi_hw_params,
124 .shutdown = corgi_shutdown, 176 .shutdown = corgi_shutdown,
125}; 177};
126 178
@@ -264,35 +316,6 @@ static int corgi_wm8731_init(struct snd_soc_codec *codec)
264 return 0; 316 return 0;
265} 317}
266 318
267static unsigned int corgi_config_sysclk(struct snd_soc_pcm_runtime *rtd,
268 struct snd_soc_clock_info *info)
269{
270 if (info->bclk_master & SND_SOC_DAIFMT_CBS_CFS) {
271 /* pxa2xx is i2s master */
272 switch (info->rate) {
273 case 44100:
274 case 88200:
275 /* configure codec digital filters for 44.1, 88.2 */
276 rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
277 11289600);
278 break;
279 default:
280 /* configure codec digital filters for all other rates */
281 rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
282 CORGI_AUDIO_CLOCK);
283 break;
284 }
285 /* config pxa i2s as master */
286 return rtd->cpu_dai->config_sysclk(rtd->cpu_dai, info,
287 CORGI_AUDIO_CLOCK);
288 } else {
289 /* codec is i2s master -
290 * only configure codec DAI clock and filters */
291 return rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
292 CORGI_AUDIO_CLOCK);
293 }
294}
295
296/* corgi digital audio interface glue - connects codec <--> CPU */ 319/* corgi digital audio interface glue - connects codec <--> CPU */
297static struct snd_soc_dai_link corgi_dai = { 320static struct snd_soc_dai_link corgi_dai = {
298 .name = "WM8731", 321 .name = "WM8731",
@@ -300,7 +323,7 @@ static struct snd_soc_dai_link corgi_dai = {
300 .cpu_dai = &pxa_i2s_dai, 323 .cpu_dai = &pxa_i2s_dai,
301 .codec_dai = &wm8731_dai, 324 .codec_dai = &wm8731_dai,
302 .init = corgi_wm8731_init, 325 .init = corgi_wm8731_init,
303 .config_sysclk = corgi_config_sysclk, 326 .ops = &corgi_ops,
304}; 327};
305 328
306/* corgi audio machine driver */ 329/* corgi audio machine driver */
@@ -308,7 +331,6 @@ static struct snd_soc_machine snd_soc_machine_corgi = {
308 .name = "Corgi", 331 .name = "Corgi",
309 .dai_link = &corgi_dai, 332 .dai_link = &corgi_dai,
310 .num_links = 1, 333 .num_links = 1,
311 .ops = &corgi_ops,
312}; 334};
313 335
314/* corgi audio private data */ 336/* corgi audio private data */