Merge branches 'stable/ia64', 'stable/blkfront-cleanup' and 'stable/cleanup' of git...
[pandora-kernel.git] / sound / soc / davinci / davinci-evm.c
1 /*
2  * ASoC driver for TI DAVINCI EVM platform
3  *
4  * Author:      Vladimir Barinov, <vbarinov@embeddedalley.com>
5  * Copyright:   (C) 2007 MontaVista Software, Inc., <source@mvista.com>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  */
11
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/timer.h>
15 #include <linux/interrupt.h>
16 #include <linux/platform_device.h>
17 #include <linux/i2c.h>
18 #include <sound/core.h>
19 #include <sound/pcm.h>
20 #include <sound/soc.h>
21
22 #include <asm/dma.h>
23 #include <asm/mach-types.h>
24
25 #include <mach/asp.h>
26 #include <mach/edma.h>
27 #include <mach/mux.h>
28
29 #include "davinci-pcm.h"
30 #include "davinci-i2s.h"
31 #include "davinci-mcasp.h"
32
33 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
34                 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
35 static int evm_hw_params(struct snd_pcm_substream *substream,
36                          struct snd_pcm_hw_params *params)
37 {
38         struct snd_soc_pcm_runtime *rtd = substream->private_data;
39         struct snd_soc_dai *codec_dai = rtd->codec_dai;
40         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
41         int ret = 0;
42         unsigned sysclk;
43
44         /* ASP1 on DM355 EVM is clocked by an external oscillator */
45         if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
46             machine_is_davinci_dm365_evm())
47                 sysclk = 27000000;
48
49         /* ASP0 in DM6446 EVM is clocked by U55, as configured by
50          * board-dm644x-evm.c using GPIOs from U18.  There are six
51          * options; here we "know" we use a 48 KHz sample rate.
52          */
53         else if (machine_is_davinci_evm())
54                 sysclk = 12288000;
55
56         else if (machine_is_davinci_da830_evm() ||
57                                 machine_is_davinci_da850_evm())
58                 sysclk = 24576000;
59
60         else
61                 return -EINVAL;
62
63         /* set codec DAI configuration */
64         ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
65         if (ret < 0)
66                 return ret;
67
68         /* set cpu DAI configuration */
69         ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
70         if (ret < 0)
71                 return ret;
72
73         /* set the codec system clock */
74         ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
75         if (ret < 0)
76                 return ret;
77
78         return 0;
79 }
80
81 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
82                                 struct snd_pcm_hw_params *params)
83 {
84         struct snd_soc_pcm_runtime *rtd = substream->private_data;
85         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
86
87         /* set cpu DAI configuration */
88         return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
89 }
90
91 static struct snd_soc_ops evm_ops = {
92         .hw_params = evm_hw_params,
93 };
94
95 static struct snd_soc_ops evm_spdif_ops = {
96         .hw_params = evm_spdif_hw_params,
97 };
98
99 /* davinci-evm machine dapm widgets */
100 static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
101         SND_SOC_DAPM_HP("Headphone Jack", NULL),
102         SND_SOC_DAPM_LINE("Line Out", NULL),
103         SND_SOC_DAPM_MIC("Mic Jack", NULL),
104         SND_SOC_DAPM_LINE("Line In", NULL),
105 };
106
107 /* davinci-evm machine audio_mapnections to the codec pins */
108 static const struct snd_soc_dapm_route audio_map[] = {
109         /* Headphone connected to HPLOUT, HPROUT */
110         {"Headphone Jack", NULL, "HPLOUT"},
111         {"Headphone Jack", NULL, "HPROUT"},
112
113         /* Line Out connected to LLOUT, RLOUT */
114         {"Line Out", NULL, "LLOUT"},
115         {"Line Out", NULL, "RLOUT"},
116
117         /* Mic connected to (MIC3L | MIC3R) */
118         {"MIC3L", NULL, "Mic Bias 2V"},
119         {"MIC3R", NULL, "Mic Bias 2V"},
120         {"Mic Bias 2V", NULL, "Mic Jack"},
121
122         /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
123         {"LINE1L", NULL, "Line In"},
124         {"LINE2L", NULL, "Line In"},
125         {"LINE1R", NULL, "Line In"},
126         {"LINE2R", NULL, "Line In"},
127 };
128
129 /* Logic for a aic3x as connected on a davinci-evm */
130 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
131 {
132         struct snd_soc_codec *codec = rtd->codec;
133         struct snd_soc_dapm_context *dapm = &codec->dapm;
134
135         /* Add davinci-evm specific widgets */
136         snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
137                                   ARRAY_SIZE(aic3x_dapm_widgets));
138
139         /* Set up davinci-evm specific audio path audio_map */
140         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
141
142         /* not connected */
143         snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
144         snd_soc_dapm_disable_pin(dapm, "HPLCOM");
145         snd_soc_dapm_disable_pin(dapm, "HPRCOM");
146
147         /* always connected */
148         snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
149         snd_soc_dapm_enable_pin(dapm, "Line Out");
150         snd_soc_dapm_enable_pin(dapm, "Mic Jack");
151         snd_soc_dapm_enable_pin(dapm, "Line In");
152
153         snd_soc_dapm_sync(dapm);
154
155         return 0;
156 }
157
158 /* davinci-evm digital audio interface glue - connects codec <--> CPU */
159 static struct snd_soc_dai_link dm6446_evm_dai = {
160         .name = "TLV320AIC3X",
161         .stream_name = "AIC3X",
162         .cpu_dai_name = "davinci-mcbsp",
163         .codec_dai_name = "tlv320aic3x-hifi",
164         .codec_name = "tlv320aic3x-codec.1-001b",
165         .platform_name = "davinci-pcm-audio",
166         .init = evm_aic3x_init,
167         .ops = &evm_ops,
168 };
169
170 static struct snd_soc_dai_link dm355_evm_dai = {
171         .name = "TLV320AIC3X",
172         .stream_name = "AIC3X",
173         .cpu_dai_name = "davinci-mcbsp.1",
174         .codec_dai_name = "tlv320aic3x-hifi",
175         .codec_name = "tlv320aic3x-codec.1-001b",
176         .platform_name = "davinci-pcm-audio",
177         .init = evm_aic3x_init,
178         .ops = &evm_ops,
179 };
180
181 static struct snd_soc_dai_link dm365_evm_dai = {
182 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
183         .name = "TLV320AIC3X",
184         .stream_name = "AIC3X",
185         .cpu_dai_name = "davinci-mcbsp",
186         .codec_dai_name = "tlv320aic3x-hifi",
187         .init = evm_aic3x_init,
188         .codec_name = "tlv320aic3x-codec.1-0018",
189         .ops = &evm_ops,
190 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
191         .name = "Voice Codec - CQ93VC",
192         .stream_name = "CQ93",
193         .cpu_dai_name = "davinci-vcif",
194         .codec_dai_name = "cq93vc-hifi",
195         .codec_name = "cq93vc-codec",
196 #endif
197         .platform_name = "davinci-pcm-audio",
198 };
199
200 static struct snd_soc_dai_link dm6467_evm_dai[] = {
201         {
202                 .name = "TLV320AIC3X",
203                 .stream_name = "AIC3X",
204                 .cpu_dai_name= "davinci-mcasp.0",
205                 .codec_dai_name = "tlv320aic3x-hifi",
206                 .platform_name ="davinci-pcm-audio",
207                 .codec_name = "tlv320aic3x-codec.0-001a",
208                 .init = evm_aic3x_init,
209                 .ops = &evm_ops,
210         },
211         {
212                 .name = "McASP",
213                 .stream_name = "spdif",
214                 .cpu_dai_name= "davinci-mcasp.1",
215                 .codec_dai_name = "dit-hifi",
216                 .codec_name = "spdif_dit",
217                 .platform_name = "davinci-pcm-audio",
218                 .ops = &evm_spdif_ops,
219         },
220 };
221
222 static struct snd_soc_dai_link da830_evm_dai = {
223         .name = "TLV320AIC3X",
224         .stream_name = "AIC3X",
225         .cpu_dai_name = "davinci-mcasp.1",
226         .codec_dai_name = "tlv320aic3x-hifi",
227         .codec_name = "tlv320aic3x-codec.1-0018",
228         .platform_name = "davinci-pcm-audio",
229         .init = evm_aic3x_init,
230         .ops = &evm_ops,
231 };
232
233 static struct snd_soc_dai_link da850_evm_dai = {
234         .name = "TLV320AIC3X",
235         .stream_name = "AIC3X",
236         .cpu_dai_name= "davinci-mcasp.0",
237         .codec_dai_name = "tlv320aic3x-hifi",
238         .codec_name = "tlv320aic3x-codec.1-0018",
239         .platform_name = "davinci-pcm-audio",
240         .init = evm_aic3x_init,
241         .ops = &evm_ops,
242 };
243
244 /* davinci dm6446 evm audio machine driver */
245 static struct snd_soc_card dm6446_snd_soc_card_evm = {
246         .name = "DaVinci DM6446 EVM",
247         .dai_link = &dm6446_evm_dai,
248         .num_links = 1,
249 };
250
251 /* davinci dm355 evm audio machine driver */
252 static struct snd_soc_card dm355_snd_soc_card_evm = {
253         .name = "DaVinci DM355 EVM",
254         .dai_link = &dm355_evm_dai,
255         .num_links = 1,
256 };
257
258 /* davinci dm365 evm audio machine driver */
259 static struct snd_soc_card dm365_snd_soc_card_evm = {
260         .name = "DaVinci DM365 EVM",
261         .dai_link = &dm365_evm_dai,
262         .num_links = 1,
263 };
264
265 /* davinci dm6467 evm audio machine driver */
266 static struct snd_soc_card dm6467_snd_soc_card_evm = {
267         .name = "DaVinci DM6467 EVM",
268         .dai_link = dm6467_evm_dai,
269         .num_links = ARRAY_SIZE(dm6467_evm_dai),
270 };
271
272 static struct snd_soc_card da830_snd_soc_card = {
273         .name = "DA830/OMAP-L137 EVM",
274         .dai_link = &da830_evm_dai,
275         .num_links = 1,
276 };
277
278 static struct snd_soc_card da850_snd_soc_card = {
279         .name = "DA850/OMAP-L138 EVM",
280         .dai_link = &da850_evm_dai,
281         .num_links = 1,
282 };
283
284 static struct platform_device *evm_snd_device;
285
286 static int __init evm_init(void)
287 {
288         struct snd_soc_card *evm_snd_dev_data;
289         int index;
290         int ret;
291
292         if (machine_is_davinci_evm()) {
293                 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
294                 index = 0;
295         } else if (machine_is_davinci_dm355_evm()) {
296                 evm_snd_dev_data = &dm355_snd_soc_card_evm;
297                 index = 1;
298         } else if (machine_is_davinci_dm365_evm()) {
299                 evm_snd_dev_data = &dm365_snd_soc_card_evm;
300                 index = 0;
301         } else if (machine_is_davinci_dm6467_evm()) {
302                 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
303                 index = 0;
304         } else if (machine_is_davinci_da830_evm()) {
305                 evm_snd_dev_data = &da830_snd_soc_card;
306                 index = 1;
307         } else if (machine_is_davinci_da850_evm()) {
308                 evm_snd_dev_data = &da850_snd_soc_card;
309                 index = 0;
310         } else
311                 return -EINVAL;
312
313         evm_snd_device = platform_device_alloc("soc-audio", index);
314         if (!evm_snd_device)
315                 return -ENOMEM;
316
317         platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
318         ret = platform_device_add(evm_snd_device);
319         if (ret)
320                 platform_device_put(evm_snd_device);
321
322         return ret;
323 }
324
325 static void __exit evm_exit(void)
326 {
327         platform_device_unregister(evm_snd_device);
328 }
329
330 module_init(evm_init);
331 module_exit(evm_exit);
332
333 MODULE_AUTHOR("Vladimir Barinov");
334 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
335 MODULE_LICENSE("GPL");