2 * ASoC driver for TI DAVINCI EVM platform
4 * Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
5 * Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com>
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.
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 #include <sound/soc-dapm.h>
24 #include <asm/mach-types.h>
27 #include <mach/edma.h>
30 #include "../codecs/tlv320aic3x.h"
31 #include "davinci-pcm.h"
32 #include "davinci-i2s.h"
33 #include "davinci-mcasp.h"
35 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
36 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
37 static int evm_hw_params(struct snd_pcm_substream
*substream
,
38 struct snd_pcm_hw_params
*params
)
40 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
41 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
42 struct snd_soc_dai
*cpu_dai
= rtd
->cpu_dai
;
46 /* ASP1 on DM355 EVM is clocked by an external oscillator */
47 if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
48 machine_is_davinci_dm365_evm())
51 /* ASP0 in DM6446 EVM is clocked by U55, as configured by
52 * board-dm644x-evm.c using GPIOs from U18. There are six
53 * options; here we "know" we use a 48 KHz sample rate.
55 else if (machine_is_davinci_evm())
58 else if (machine_is_davinci_da830_evm() ||
59 machine_is_davinci_da850_evm())
65 /* set codec DAI configuration */
66 ret
= snd_soc_dai_set_fmt(codec_dai
, AUDIO_FORMAT
);
70 /* set cpu DAI configuration */
71 ret
= snd_soc_dai_set_fmt(cpu_dai
, AUDIO_FORMAT
);
75 /* set the codec system clock */
76 ret
= snd_soc_dai_set_sysclk(codec_dai
, 0, sysclk
, SND_SOC_CLOCK_OUT
);
83 static int evm_spdif_hw_params(struct snd_pcm_substream
*substream
,
84 struct snd_pcm_hw_params
*params
)
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
);
93 static struct snd_soc_ops evm_ops
= {
94 .hw_params
= evm_hw_params
,
97 static struct snd_soc_ops evm_spdif_ops
= {
98 .hw_params
= evm_spdif_hw_params
,
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
),
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"},
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
;
136 /* Add davinci-evm specific widgets */
137 snd_soc_dapm_new_controls(codec
, aic3x_dapm_widgets
,
138 ARRAY_SIZE(aic3x_dapm_widgets
));
140 /* Set up davinci-evm specific audio path audio_map */
141 snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
144 snd_soc_dapm_disable_pin(codec
, "MONO_LOUT");
145 snd_soc_dapm_disable_pin(codec
, "HPLCOM");
146 snd_soc_dapm_disable_pin(codec
, "HPRCOM");
148 /* always connected */
149 snd_soc_dapm_enable_pin(codec
, "Headphone Jack");
150 snd_soc_dapm_enable_pin(codec
, "Line Out");
151 snd_soc_dapm_enable_pin(codec
, "Mic Jack");
152 snd_soc_dapm_enable_pin(codec
, "Line In");
154 snd_soc_dapm_sync(codec
);
159 /* davinci-evm digital audio interface glue - connects codec <--> CPU */
160 static struct snd_soc_dai_link dm6446_evm_dai
= {
161 .name
= "TLV320AIC3X",
162 .stream_name
= "AIC3X",
163 .cpu_dai_name
= "davinci-mcbsp",
164 .codec_dai_name
= "tlv320aic3x-hifi",
165 .codec_name
= "tlv320aic3x-codec.1-001b",
166 .platform_name
= "davinci-pcm-audio",
167 .init
= evm_aic3x_init
,
171 static struct snd_soc_dai_link dm355_evm_dai
= {
172 .name
= "TLV320AIC3X",
173 .stream_name
= "AIC3X",
174 .cpu_dai_name
= "davinci-mcbsp.1",
175 .codec_dai_name
= "tlv320aic3x-hifi",
176 .codec_name
= "tlv320aic3x-codec.1-001b",
177 .platform_name
= "davinci-pcm-audio",
178 .init
= evm_aic3x_init
,
182 static struct snd_soc_dai_link dm365_evm_dai
= {
183 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
184 .name
= "TLV320AIC3X",
185 .stream_name
= "AIC3X",
186 .cpu_dai_name
= "davinci-mcbsp",
187 .codec_dai_name
= "tlv320aic3x-hifi",
188 .init
= evm_aic3x_init
,
189 .codec_name
= "tlv320aic3x-codec.1-0018",
191 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
192 .name
= "Voice Codec - CQ93VC",
193 .stream_name
= "CQ93",
194 .cpu_dai_name
= "davinci-vcif",
195 .codec_dai_name
= "cq93vc-hifi",
196 .codec_name
= "cq93vc-codec",
198 .platform_name
= "davinci-pcm-audio",
201 static struct snd_soc_dai_link dm6467_evm_dai
[] = {
203 .name
= "TLV320AIC3X",
204 .stream_name
= "AIC3X",
205 .cpu_dai_name
= "davinci-mcasp.0",
206 .codec_dai_name
= "tlv320aic3x-hifi",
207 .platform_name
="davinci-pcm-audio",
208 .codec_name
= "tlv320aic3x-codec.0-001a",
209 .init
= evm_aic3x_init
,
214 .stream_name
= "spdif",
215 .cpu_dai_name
= "davinci-mcasp.1",
216 .codec_dai_name
= "dit-hifi",
217 .codec_name
= "spdif_dit",
218 .platform_name
= "davinci-pcm-audio",
219 .ops
= &evm_spdif_ops
,
222 static struct snd_soc_dai_link da8xx_evm_dai
= {
223 .name
= "TLV320AIC3X",
224 .stream_name
= "AIC3X",
225 .cpu_dai_name
= "davinci-mcasp.0",
226 .codec_dai_name
= "tlv320aic3x-hifi",
227 .codec_name
= "tlv320aic3x-codec.0-001a",
228 .platform_name
= "davinci-pcm-audio",
229 .init
= evm_aic3x_init
,
233 /* davinci dm6446 evm audio machine driver */
234 static struct snd_soc_card dm6446_snd_soc_card_evm
= {
235 .name
= "DaVinci DM6446 EVM",
236 .dai_link
= &dm6446_evm_dai
,
240 /* davinci dm355 evm audio machine driver */
241 static struct snd_soc_card dm355_snd_soc_card_evm
= {
242 .name
= "DaVinci DM355 EVM",
243 .dai_link
= &dm355_evm_dai
,
247 /* davinci dm365 evm audio machine driver */
248 static struct snd_soc_card dm365_snd_soc_card_evm
= {
249 .name
= "DaVinci DM365 EVM",
250 .dai_link
= &dm365_evm_dai
,
254 /* davinci dm6467 evm audio machine driver */
255 static struct snd_soc_card dm6467_snd_soc_card_evm
= {
256 .name
= "DaVinci DM6467 EVM",
257 .dai_link
= dm6467_evm_dai
,
258 .num_links
= ARRAY_SIZE(dm6467_evm_dai
),
261 static struct snd_soc_card da830_snd_soc_card
= {
262 .name
= "DA830/OMAP-L137 EVM",
263 .dai_link
= &da8xx_evm_dai
,
267 static struct snd_soc_card da850_snd_soc_card
= {
268 .name
= "DA850/OMAP-L138 EVM",
269 .dai_link
= &da8xx_evm_dai
,
273 static struct platform_device
*evm_snd_device
;
275 static int __init
evm_init(void)
277 struct snd_soc_card
*evm_snd_dev_data
;
281 if (machine_is_davinci_evm()) {
282 evm_snd_dev_data
= &dm6446_snd_soc_card_evm
;
284 } else if (machine_is_davinci_dm355_evm()) {
285 evm_snd_dev_data
= &dm355_snd_soc_card_evm
;
287 } else if (machine_is_davinci_dm365_evm()) {
288 evm_snd_dev_data
= &dm365_snd_soc_card_evm
;
290 } else if (machine_is_davinci_dm6467_evm()) {
291 evm_snd_dev_data
= &dm6467_snd_soc_card_evm
;
293 } else if (machine_is_davinci_da830_evm()) {
294 evm_snd_dev_data
= &da830_snd_soc_card
;
296 } else if (machine_is_davinci_da850_evm()) {
297 evm_snd_dev_data
= &da850_snd_soc_card
;
302 evm_snd_device
= platform_device_alloc("soc-audio", index
);
306 platform_set_drvdata(evm_snd_device
, evm_snd_dev_data
);
307 ret
= platform_device_add(evm_snd_device
);
309 platform_device_put(evm_snd_device
);
314 static void __exit
evm_exit(void)
316 platform_device_unregister(evm_snd_device
);
319 module_init(evm_init
);
320 module_exit(evm_exit
);
322 MODULE_AUTHOR("Vladimir Barinov");
323 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
324 MODULE_LICENSE("GPL");