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310355c1 VB |
1 | /* |
2 | * ASoC driver for TI DAVINCI EVM platform | |
3 | * | |
d6b52039 | 4 | * Author: Vladimir Barinov, <vbarinov@embeddedalley.com> |
310355c1 VB |
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 <sound/core.h> | |
18 | #include <sound/pcm.h> | |
19 | #include <sound/soc.h> | |
20 | #include <sound/soc-dapm.h> | |
21 | ||
310355c1 | 22 | #include <asm/dma.h> |
f492ec9f DB |
23 | #include <asm/mach-types.h> |
24 | ||
25 | #include <mach/asp.h> | |
26 | #include <mach/edma.h> | |
27 | #include <mach/mux.h> | |
310355c1 VB |
28 | |
29 | #include "../codecs/tlv320aic3x.h" | |
04f80f5c | 30 | #include "../codecs/spdif_transciever.h" |
310355c1 VB |
31 | #include "davinci-pcm.h" |
32 | #include "davinci-i2s.h" | |
04f80f5c | 33 | #include "davinci-mcasp.h" |
310355c1 | 34 | |
d6f83396 TK |
35 | #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \ |
36 | SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF) | |
310355c1 VB |
37 | static int evm_hw_params(struct snd_pcm_substream *substream, |
38 | struct snd_pcm_hw_params *params) | |
39 | { | |
40 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
9cb132d7 LG |
41 | struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; |
42 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; | |
310355c1 | 43 | int ret = 0; |
05d5e991 DB |
44 | unsigned sysclk; |
45 | ||
46 | /* ASP1 on DM355 EVM is clocked by an external oscillator */ | |
04f80f5c | 47 | if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm()) |
05d5e991 DB |
48 | sysclk = 27000000; |
49 | ||
50 | /* ASP0 in DM6446 EVM is clocked by U55, as configured by | |
51 | * board-dm644x-evm.c using GPIOs from U18. There are six | |
52 | * options; here we "know" we use a 48 KHz sample rate. | |
53 | */ | |
54 | else if (machine_is_davinci_evm()) | |
55 | sysclk = 12288000; | |
56 | ||
57 | else | |
58 | return -EINVAL; | |
310355c1 VB |
59 | |
60 | /* set codec DAI configuration */ | |
9e031624 | 61 | ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT); |
310355c1 VB |
62 | if (ret < 0) |
63 | return ret; | |
64 | ||
65 | /* set cpu DAI configuration */ | |
9e031624 | 66 | ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT); |
310355c1 VB |
67 | if (ret < 0) |
68 | return ret; | |
69 | ||
70 | /* set the codec system clock */ | |
05d5e991 | 71 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT); |
310355c1 VB |
72 | if (ret < 0) |
73 | return ret; | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
78 | static struct snd_soc_ops evm_ops = { | |
79 | .hw_params = evm_hw_params, | |
80 | }; | |
81 | ||
82 | /* davinci-evm machine dapm widgets */ | |
83 | static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = { | |
84 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
85 | SND_SOC_DAPM_LINE("Line Out", NULL), | |
86 | SND_SOC_DAPM_MIC("Mic Jack", NULL), | |
87 | SND_SOC_DAPM_LINE("Line In", NULL), | |
88 | }; | |
89 | ||
90 | /* davinci-evm machine audio_mapnections to the codec pins */ | |
acf497f9 | 91 | static const struct snd_soc_dapm_route audio_map[] = { |
310355c1 VB |
92 | /* Headphone connected to HPLOUT, HPROUT */ |
93 | {"Headphone Jack", NULL, "HPLOUT"}, | |
94 | {"Headphone Jack", NULL, "HPROUT"}, | |
95 | ||
96 | /* Line Out connected to LLOUT, RLOUT */ | |
97 | {"Line Out", NULL, "LLOUT"}, | |
98 | {"Line Out", NULL, "RLOUT"}, | |
99 | ||
100 | /* Mic connected to (MIC3L | MIC3R) */ | |
101 | {"MIC3L", NULL, "Mic Bias 2V"}, | |
102 | {"MIC3R", NULL, "Mic Bias 2V"}, | |
103 | {"Mic Bias 2V", NULL, "Mic Jack"}, | |
104 | ||
105 | /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */ | |
106 | {"LINE1L", NULL, "Line In"}, | |
107 | {"LINE2L", NULL, "Line In"}, | |
108 | {"LINE1R", NULL, "Line In"}, | |
109 | {"LINE2R", NULL, "Line In"}, | |
310355c1 VB |
110 | }; |
111 | ||
112 | /* Logic for a aic3x as connected on a davinci-evm */ | |
113 | static int evm_aic3x_init(struct snd_soc_codec *codec) | |
114 | { | |
310355c1 | 115 | /* Add davinci-evm specific widgets */ |
acf497f9 MB |
116 | snd_soc_dapm_new_controls(codec, aic3x_dapm_widgets, |
117 | ARRAY_SIZE(aic3x_dapm_widgets)); | |
310355c1 VB |
118 | |
119 | /* Set up davinci-evm specific audio path audio_map */ | |
acf497f9 | 120 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); |
310355c1 VB |
121 | |
122 | /* not connected */ | |
a5302181 LG |
123 | snd_soc_dapm_disable_pin(codec, "MONO_LOUT"); |
124 | snd_soc_dapm_disable_pin(codec, "HPLCOM"); | |
125 | snd_soc_dapm_disable_pin(codec, "HPRCOM"); | |
310355c1 VB |
126 | |
127 | /* always connected */ | |
a5302181 LG |
128 | snd_soc_dapm_enable_pin(codec, "Headphone Jack"); |
129 | snd_soc_dapm_enable_pin(codec, "Line Out"); | |
130 | snd_soc_dapm_enable_pin(codec, "Mic Jack"); | |
131 | snd_soc_dapm_enable_pin(codec, "Line In"); | |
310355c1 | 132 | |
a5302181 | 133 | snd_soc_dapm_sync(codec); |
310355c1 VB |
134 | |
135 | return 0; | |
136 | } | |
137 | ||
138 | /* davinci-evm digital audio interface glue - connects codec <--> CPU */ | |
139 | static struct snd_soc_dai_link evm_dai = { | |
140 | .name = "TLV320AIC3X", | |
141 | .stream_name = "AIC3X", | |
142 | .cpu_dai = &davinci_i2s_dai, | |
143 | .codec_dai = &aic3x_dai, | |
144 | .init = evm_aic3x_init, | |
145 | .ops = &evm_ops, | |
146 | }; | |
147 | ||
04f80f5c C |
148 | static struct snd_soc_dai_link dm6467_evm_dai[] = { |
149 | { | |
150 | .name = "TLV320AIC3X", | |
151 | .stream_name = "AIC3X", | |
152 | .cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_I2S_DAI], | |
153 | .codec_dai = &aic3x_dai, | |
154 | .init = evm_aic3x_init, | |
155 | .ops = &evm_ops, | |
156 | }, | |
157 | { | |
158 | .name = "McASP", | |
159 | .stream_name = "spdif", | |
160 | .cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_DIT_DAI], | |
161 | .codec_dai = &dit_stub_dai, | |
162 | .ops = &evm_ops, | |
163 | }, | |
164 | }; | |
165 | ||
310355c1 | 166 | /* davinci-evm audio machine driver */ |
87506549 | 167 | static struct snd_soc_card snd_soc_card_evm = { |
310355c1 | 168 | .name = "DaVinci EVM", |
87689d56 | 169 | .platform = &davinci_soc_platform, |
310355c1 VB |
170 | .dai_link = &evm_dai, |
171 | .num_links = 1, | |
172 | }; | |
173 | ||
04f80f5c C |
174 | /* davinci dm6467 evm audio machine driver */ |
175 | static struct snd_soc_card dm6467_snd_soc_card_evm = { | |
176 | .name = "DaVinci DM6467 EVM", | |
177 | .platform = &davinci_soc_platform, | |
178 | .dai_link = dm6467_evm_dai, | |
179 | .num_links = ARRAY_SIZE(dm6467_evm_dai), | |
180 | }; | |
181 | ||
310355c1 VB |
182 | /* evm audio private data */ |
183 | static struct aic3x_setup_data evm_aic3x_setup = { | |
f492ec9f | 184 | .i2c_bus = 1, |
310355c1 VB |
185 | .i2c_address = 0x1b, |
186 | }; | |
187 | ||
04f80f5c C |
188 | /* dm6467 evm audio private data */ |
189 | static struct aic3x_setup_data dm6467_evm_aic3x_setup = { | |
190 | .i2c_bus = 1, | |
191 | .i2c_address = 0x18, | |
192 | }; | |
193 | ||
310355c1 VB |
194 | /* evm audio subsystem */ |
195 | static struct snd_soc_device evm_snd_devdata = { | |
87506549 | 196 | .card = &snd_soc_card_evm, |
310355c1 VB |
197 | .codec_dev = &soc_codec_dev_aic3x, |
198 | .codec_data = &evm_aic3x_setup, | |
199 | }; | |
200 | ||
04f80f5c C |
201 | /* evm audio subsystem */ |
202 | static struct snd_soc_device dm6467_evm_snd_devdata = { | |
203 | .card = &dm6467_snd_soc_card_evm, | |
204 | .codec_dev = &soc_codec_dev_aic3x, | |
205 | .codec_data = &dm6467_evm_aic3x_setup, | |
310355c1 VB |
206 | }; |
207 | ||
208 | static struct platform_device *evm_snd_device; | |
209 | ||
210 | static int __init evm_init(void) | |
211 | { | |
04f80f5c | 212 | struct snd_soc_device *evm_snd_dev_data; |
f492ec9f | 213 | int index; |
310355c1 VB |
214 | int ret; |
215 | ||
f492ec9f | 216 | if (machine_is_davinci_evm()) { |
04f80f5c | 217 | evm_snd_dev_data = &evm_snd_devdata; |
f492ec9f DB |
218 | index = 0; |
219 | } else if (machine_is_davinci_dm355_evm()) { | |
04f80f5c | 220 | evm_snd_dev_data = &evm_snd_devdata; |
f492ec9f | 221 | index = 1; |
04f80f5c C |
222 | } else if (machine_is_davinci_dm6467_evm()) { |
223 | evm_snd_dev_data = &dm6467_evm_snd_devdata; | |
224 | index = 0; | |
f492ec9f DB |
225 | } else |
226 | return -EINVAL; | |
227 | ||
228 | evm_snd_device = platform_device_alloc("soc-audio", index); | |
310355c1 VB |
229 | if (!evm_snd_device) |
230 | return -ENOMEM; | |
231 | ||
04f80f5c C |
232 | platform_set_drvdata(evm_snd_device, evm_snd_dev_data); |
233 | evm_snd_dev_data->dev = &evm_snd_device->dev; | |
310355c1 VB |
234 | ret = platform_device_add(evm_snd_device); |
235 | if (ret) | |
236 | platform_device_put(evm_snd_device); | |
237 | ||
238 | return ret; | |
239 | } | |
240 | ||
241 | static void __exit evm_exit(void) | |
242 | { | |
243 | platform_device_unregister(evm_snd_device); | |
244 | } | |
245 | ||
246 | module_init(evm_init); | |
247 | module_exit(evm_exit); | |
248 | ||
249 | MODULE_AUTHOR("Vladimir Barinov"); | |
250 | MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver"); | |
251 | MODULE_LICENSE("GPL"); |