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315f7da6 RM |
1 | /* |
2 | * snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module | |
3 | * | |
4 | * Copyright (C) 2008 Bluewater Systems Ltd | |
1c5454ee | 5 | * Author: Ryan Mallon |
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6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | */ | |
13 | ||
14 | #include <linux/platform_device.h> | |
da155d5b | 15 | #include <linux/module.h> |
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16 | #include <sound/core.h> |
17 | #include <sound/pcm.h> | |
18 | #include <sound/soc.h> | |
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19 | |
20 | #include <asm/mach-types.h> | |
21 | #include <mach/hardware.h> | |
22 | ||
23 | #include "../codecs/tlv320aic23.h" | |
24 | #include "ep93xx-pcm.h" | |
315f7da6 RM |
25 | |
26 | #define CODEC_CLOCK 5644800 | |
27 | ||
28 | static int snappercl15_hw_params(struct snd_pcm_substream *substream, | |
29 | struct snd_pcm_hw_params *params) | |
30 | { | |
31 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
32 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
33 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
315f7da6 RM |
34 | int err; |
35 | ||
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36 | err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, |
37 | SND_SOC_CLOCK_IN); | |
38 | if (err) | |
39 | return err; | |
40 | ||
41 | err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK, | |
42 | SND_SOC_CLOCK_OUT); | |
43 | if (err) | |
44 | return err; | |
45 | ||
46 | return 0; | |
47 | } | |
48 | ||
49 | static struct snd_soc_ops snappercl15_ops = { | |
50 | .hw_params = snappercl15_hw_params, | |
51 | }; | |
52 | ||
53 | static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { | |
54 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
55 | SND_SOC_DAPM_LINE("Line In", NULL), | |
56 | SND_SOC_DAPM_MIC("Mic Jack", NULL), | |
57 | }; | |
58 | ||
59 | static const struct snd_soc_dapm_route audio_map[] = { | |
60 | {"Headphone Jack", NULL, "LHPOUT"}, | |
61 | {"Headphone Jack", NULL, "RHPOUT"}, | |
62 | ||
63 | {"LLINEIN", NULL, "Line In"}, | |
64 | {"RLINEIN", NULL, "Line In"}, | |
65 | ||
66 | {"MICIN", NULL, "Mic Jack"}, | |
67 | }; | |
68 | ||
f0fba2ad | 69 | static int snappercl15_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd) |
315f7da6 | 70 | { |
f0fba2ad | 71 | struct snd_soc_codec *codec = rtd->codec; |
ce6120cc | 72 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
f0fba2ad | 73 | |
ce6120cc | 74 | snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets, |
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75 | ARRAY_SIZE(tlv320aic23_dapm_widgets)); |
76 | ||
ce6120cc | 77 | snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); |
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78 | return 0; |
79 | } | |
80 | ||
81 | static struct snd_soc_dai_link snappercl15_dai = { | |
82 | .name = "tlv320aic23", | |
83 | .stream_name = "AIC23", | |
f0fba2ad LG |
84 | .cpu_dai_name = "ep93xx-i2s", |
85 | .codec_dai_name = "tlv320aic23-hifi", | |
86 | .codec_name = "tlv320aic23-codec.0-001a", | |
87 | .platform_name = "ep93xx-pcm-audio", | |
315f7da6 | 88 | .init = snappercl15_tlv320aic23_init, |
f49f8510 AL |
89 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_IF | |
90 | SND_SOC_DAIFMT_CBS_CFS, | |
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91 | .ops = &snappercl15_ops, |
92 | }; | |
93 | ||
94 | static struct snd_soc_card snd_soc_snappercl15 = { | |
95 | .name = "Snapper CL15", | |
a76a7023 | 96 | .owner = THIS_MODULE, |
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97 | .dai_link = &snappercl15_dai, |
98 | .num_links = 1, | |
99 | }; | |
100 | ||
62e4f7d1 | 101 | static int __devinit snappercl15_probe(struct platform_device *pdev) |
315f7da6 | 102 | { |
62e4f7d1 | 103 | struct snd_soc_card *card = &snd_soc_snappercl15; |
315f7da6 RM |
104 | int ret; |
105 | ||
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106 | ret = ep93xx_i2s_acquire(EP93XX_SYSCON_DEVCFG_I2SONAC97, |
107 | EP93XX_SYSCON_I2SCLKDIV_ORIDE | | |
108 | EP93XX_SYSCON_I2SCLKDIV_SPOL); | |
109 | if (ret) | |
110 | return ret; | |
111 | ||
62e4f7d1 MW |
112 | card->dev = &pdev->dev; |
113 | ||
114 | ret = snd_soc_register_card(card); | |
115 | if (ret) { | |
116 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", | |
117 | ret); | |
118 | ep93xx_i2s_release(); | |
119 | } | |
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120 | |
121 | return ret; | |
122 | } | |
123 | ||
62e4f7d1 | 124 | static int __devexit snappercl15_remove(struct platform_device *pdev) |
315f7da6 | 125 | { |
62e4f7d1 MW |
126 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
127 | ||
128 | snd_soc_unregister_card(card); | |
315f7da6 | 129 | ep93xx_i2s_release(); |
62e4f7d1 MW |
130 | |
131 | return 0; | |
132 | } | |
133 | ||
134 | static struct platform_driver snappercl15_driver = { | |
135 | .driver = { | |
136 | .name = "snappercl15-audio", | |
137 | .owner = THIS_MODULE, | |
138 | }, | |
139 | .probe = snappercl15_probe, | |
140 | .remove = __devexit_p(snappercl15_remove), | |
141 | }; | |
142 | ||
ee18f631 | 143 | module_platform_driver(snappercl15_driver); |
315f7da6 | 144 | |
1c5454ee | 145 | MODULE_AUTHOR("Ryan Mallon"); |
315f7da6 RM |
146 | MODULE_DESCRIPTION("ALSA SoC Snapper CL15"); |
147 | MODULE_LICENSE("GPL"); | |
62e4f7d1 | 148 | MODULE_ALIAS("platform:snappercl15-audio"); |