arm:omap:am33xx: McASP hookup for AM335x EVM
[sitara-epos/sitara-epos-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  */
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>
22 #include <asm/dma.h>
23 #include <asm/mach-types.h>
25 #include <asm/hardware/asp.h>
26 #include <mach/edma.h>
28 #include "davinci-pcm.h"
29 #include "davinci-i2s.h"
30 #include "davinci-mcasp.h"
32 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
33                 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
34 static int evm_hw_params(struct snd_pcm_substream *substream,
35                          struct snd_pcm_hw_params *params)
36 {
37         struct snd_soc_pcm_runtime *rtd = substream->private_data;
38         struct snd_soc_dai *codec_dai = rtd->codec_dai;
39         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
40         int ret = 0;
41         unsigned sysclk;
43         /* ASP1 on DM355 EVM is clocked by an external oscillator */
44         if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
45             machine_is_davinci_dm365_evm())
46                 sysclk = 27000000;
48         /* ASP0 in DM6446 EVM is clocked by U55, as configured by
49          * board-dm644x-evm.c using GPIOs from U18.  There are six
50          * options; here we "know" we use a 48 KHz sample rate.
51          */
52         else if (machine_is_davinci_evm())
53                 sysclk = 12288000;
55         else if (machine_is_davinci_da830_evm() ||
56                                 machine_is_davinci_da850_evm())
57                 sysclk = 24576000;
58         /* On AM335X, CODEC gets MCLK from external Xtal (12MHz). */
59         else if (machine_is_am335xevm())
60                 sysclk = 12000000;
62         else
63                 return -EINVAL;
65         /* set codec DAI configuration */
66         ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
67         if (ret < 0)
68                 return ret;
70         /* set cpu DAI configuration */
71         ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
72         if (ret < 0)
73                 return ret;
75         /* set the codec system clock */
76         ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
77         if (ret < 0)
78                 return ret;
80         return 0;
81 }
83 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
84                                 struct snd_pcm_hw_params *params)
85 {
86         struct snd_soc_pcm_runtime *rtd = substream->private_data;
87         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
89         /* set cpu DAI configuration */
90         return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
91 }
93 static struct snd_soc_ops evm_ops = {
94         .hw_params = evm_hw_params,
95 };
97 static struct snd_soc_ops evm_spdif_ops = {
98         .hw_params = evm_spdif_hw_params,
99 };
101 /* davinci-evm machine dapm widgets */
102 static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
103         SND_SOC_DAPM_HP("Headphone Jack", NULL),
104         SND_SOC_DAPM_LINE("Line Out", NULL),
105         SND_SOC_DAPM_MIC("Mic Jack", NULL),
106         SND_SOC_DAPM_LINE("Line In", NULL),
107 };
109 /* davinci-evm machine audio_mapnections to the codec pins */
110 static const struct snd_soc_dapm_route audio_map[] = {
111         /* Headphone connected to HPLOUT, HPROUT */
112         {"Headphone Jack", NULL, "HPLOUT"},
113         {"Headphone Jack", NULL, "HPROUT"},
115         /* Line Out connected to LLOUT, RLOUT */
116         {"Line Out", NULL, "LLOUT"},
117         {"Line Out", NULL, "RLOUT"},
119         /* Mic connected to (MIC3L | MIC3R) */
120         {"MIC3L", NULL, "Mic Bias 2V"},
121         {"MIC3R", NULL, "Mic Bias 2V"},
122         {"Mic Bias 2V", NULL, "Mic Jack"},
124         /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
125         {"LINE1L", NULL, "Line In"},
126         {"LINE2L", NULL, "Line In"},
127         {"LINE1R", NULL, "Line In"},
128         {"LINE2R", NULL, "Line In"},
129 };
131 /* Logic for a aic3x as connected on a davinci-evm */
132 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
134         struct snd_soc_codec *codec = rtd->codec;
135         struct snd_soc_dapm_context *dapm = &codec->dapm;
137         /* Add davinci-evm specific widgets */
138         snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
139                                   ARRAY_SIZE(aic3x_dapm_widgets));
141         /* Set up davinci-evm specific audio path audio_map */
142         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
144         /* not connected */
145         snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
146         snd_soc_dapm_disable_pin(dapm, "HPLCOM");
147         snd_soc_dapm_disable_pin(dapm, "HPRCOM");
149         /* always connected */
150         snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
151         snd_soc_dapm_enable_pin(dapm, "Line Out");
152         snd_soc_dapm_enable_pin(dapm, "Mic Jack");
153         snd_soc_dapm_enable_pin(dapm, "Line In");
155         return 0;
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 };
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 };
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 };
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 };
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 };
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 };
244 static struct snd_soc_dai_link am335x_evm_dai = {
245         .name = "TLV320AIC3X",
246         .stream_name = "AIC3X",
247         .cpu_dai_name = "davinci-mcasp.1",
248         .codec_dai_name = "tlv320aic3x-hifi",
249         .codec_name = "tlv320aic3x-codec.2-001b",
250         .platform_name = "davinci-pcm-audio",
251         .init = evm_aic3x_init,
252         .ops = &evm_ops,
253 };
255 /* davinci dm6446 evm audio machine driver */
256 static struct snd_soc_card dm6446_snd_soc_card_evm = {
257         .name = "DaVinci DM6446 EVM",
258         .dai_link = &dm6446_evm_dai,
259         .num_links = 1,
260 };
262 /* davinci dm355 evm audio machine driver */
263 static struct snd_soc_card dm355_snd_soc_card_evm = {
264         .name = "DaVinci DM355 EVM",
265         .dai_link = &dm355_evm_dai,
266         .num_links = 1,
267 };
269 /* davinci dm365 evm audio machine driver */
270 static struct snd_soc_card dm365_snd_soc_card_evm = {
271         .name = "DaVinci DM365 EVM",
272         .dai_link = &dm365_evm_dai,
273         .num_links = 1,
274 };
276 /* davinci dm6467 evm audio machine driver */
277 static struct snd_soc_card dm6467_snd_soc_card_evm = {
278         .name = "DaVinci DM6467 EVM",
279         .dai_link = dm6467_evm_dai,
280         .num_links = ARRAY_SIZE(dm6467_evm_dai),
281 };
283 static struct snd_soc_card da830_snd_soc_card = {
284         .name = "DA830/OMAP-L137 EVM",
285         .dai_link = &da830_evm_dai,
286         .num_links = 1,
287 };
289 static struct snd_soc_card da850_snd_soc_card = {
290         .name = "DA850/OMAP-L138 EVM",
291         .dai_link = &da850_evm_dai,
292         .num_links = 1,
293 };
295 static struct snd_soc_card am335x_snd_soc_card = {
296         .name = "AM335X EVM",
297         .dai_link = &am335x_evm_dai,
298         .num_links = 1,
299 };
301 static struct platform_device *evm_snd_device;
303 static int __init evm_init(void)
305         struct snd_soc_card *evm_snd_dev_data;
306         int index;
307         int ret;
309         if (machine_is_davinci_evm()) {
310                 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
311                 index = 0;
312         } else if (machine_is_davinci_dm355_evm()) {
313                 evm_snd_dev_data = &dm355_snd_soc_card_evm;
314                 index = 1;
315         } else if (machine_is_davinci_dm365_evm()) {
316                 evm_snd_dev_data = &dm365_snd_soc_card_evm;
317                 index = 0;
318         } else if (machine_is_davinci_dm6467_evm()) {
319                 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
320                 index = 0;
321         } else if (machine_is_davinci_da830_evm()) {
322                 evm_snd_dev_data = &da830_snd_soc_card;
323                 index = 1;
324         } else if (machine_is_davinci_da850_evm()) {
325                 evm_snd_dev_data = &da850_snd_soc_card;
326                 index = 0;
327         } else if (machine_is_am335xevm()) {
328                 evm_snd_dev_data = &am335x_snd_soc_card;
329                 index = 0;
330         } else
331                 return -EINVAL;
333         evm_snd_device = platform_device_alloc("soc-audio", index);
334         if (!evm_snd_device)
335                 return -ENOMEM;
337         platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
338         ret = platform_device_add(evm_snd_device);
339         if (ret)
340                 platform_device_put(evm_snd_device);
342         return ret;
345 static void __exit evm_exit(void)
347         platform_device_unregister(evm_snd_device);
350 module_init(evm_init);
351 module_exit(evm_exit);
353 MODULE_AUTHOR("Vladimir Barinov");
354 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
355 MODULE_LICENSE("GPL");