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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" | |
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24 | |
25 | #define CODEC_CLOCK 5644800 | |
26 | ||
27 | static int snappercl15_hw_params(struct snd_pcm_substream *substream, | |
28 | struct snd_pcm_hw_params *params) | |
29 | { | |
30 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
31 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
32 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
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33 | int err; |
34 | ||
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35 | err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, |
36 | SND_SOC_CLOCK_IN); | |
37 | if (err) | |
38 | return err; | |
39 | ||
40 | err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK, | |
41 | SND_SOC_CLOCK_OUT); | |
42 | if (err) | |
43 | return err; | |
44 | ||
45 | return 0; | |
46 | } | |
47 | ||
7f8159ac | 48 | static const struct snd_soc_ops snappercl15_ops = { |
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49 | .hw_params = snappercl15_hw_params, |
50 | }; | |
51 | ||
52 | static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { | |
53 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
54 | SND_SOC_DAPM_LINE("Line In", NULL), | |
55 | SND_SOC_DAPM_MIC("Mic Jack", NULL), | |
56 | }; | |
57 | ||
58 | static const struct snd_soc_dapm_route audio_map[] = { | |
59 | {"Headphone Jack", NULL, "LHPOUT"}, | |
60 | {"Headphone Jack", NULL, "RHPOUT"}, | |
61 | ||
62 | {"LLINEIN", NULL, "Line In"}, | |
63 | {"RLINEIN", NULL, "Line In"}, | |
64 | ||
65 | {"MICIN", NULL, "Mic Jack"}, | |
66 | }; | |
67 | ||
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68 | static struct snd_soc_dai_link snappercl15_dai = { |
69 | .name = "tlv320aic23", | |
70 | .stream_name = "AIC23", | |
f0fba2ad LG |
71 | .cpu_dai_name = "ep93xx-i2s", |
72 | .codec_dai_name = "tlv320aic23-hifi", | |
73 | .codec_name = "tlv320aic23-codec.0-001a", | |
6f2032a1 | 74 | .platform_name = "ep93xx-i2s", |
2d534113 | 75 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
f49f8510 | 76 | SND_SOC_DAIFMT_CBS_CFS, |
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77 | .ops = &snappercl15_ops, |
78 | }; | |
79 | ||
80 | static struct snd_soc_card snd_soc_snappercl15 = { | |
81 | .name = "Snapper CL15", | |
a76a7023 | 82 | .owner = THIS_MODULE, |
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83 | .dai_link = &snappercl15_dai, |
84 | .num_links = 1, | |
7b2655b4 LPC |
85 | |
86 | .dapm_widgets = tlv320aic23_dapm_widgets, | |
87 | .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets), | |
88 | .dapm_routes = audio_map, | |
89 | .num_dapm_routes = ARRAY_SIZE(audio_map), | |
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90 | }; |
91 | ||
145e2879 | 92 | static int snappercl15_probe(struct platform_device *pdev) |
315f7da6 | 93 | { |
62e4f7d1 | 94 | struct snd_soc_card *card = &snd_soc_snappercl15; |
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95 | int ret; |
96 | ||
44fb864b | 97 | ret = ep93xx_i2s_acquire(); |
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98 | if (ret) |
99 | return ret; | |
100 | ||
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101 | card->dev = &pdev->dev; |
102 | ||
103 | ret = snd_soc_register_card(card); | |
104 | if (ret) { | |
105 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", | |
106 | ret); | |
107 | ep93xx_i2s_release(); | |
108 | } | |
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109 | |
110 | return ret; | |
111 | } | |
112 | ||
145e2879 | 113 | static int snappercl15_remove(struct platform_device *pdev) |
315f7da6 | 114 | { |
62e4f7d1 MW |
115 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
116 | ||
117 | snd_soc_unregister_card(card); | |
315f7da6 | 118 | ep93xx_i2s_release(); |
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119 | |
120 | return 0; | |
121 | } | |
122 | ||
123 | static struct platform_driver snappercl15_driver = { | |
124 | .driver = { | |
125 | .name = "snappercl15-audio", | |
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126 | }, |
127 | .probe = snappercl15_probe, | |
145e2879 | 128 | .remove = snappercl15_remove, |
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129 | }; |
130 | ||
ee18f631 | 131 | module_platform_driver(snappercl15_driver); |
315f7da6 | 132 | |
1c5454ee | 133 | MODULE_AUTHOR("Ryan Mallon"); |
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134 | MODULE_DESCRIPTION("ALSA SoC Snapper CL15"); |
135 | MODULE_LICENSE("GPL"); | |
62e4f7d1 | 136 | MODULE_ALIAS("platform:snappercl15-audio"); |