Ryan Mallon | 315f7da | 2010-06-08 22:01:12 +1200 | [diff] [blame] | 1 | /* |
| 2 | * snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module |
| 3 | * |
| 4 | * Copyright (C) 2008 Bluewater Systems Ltd |
| 5 | * Author: Ryan Mallon <ryan@bluewatersys.com> |
| 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> |
| 15 | #include <sound/core.h> |
| 16 | #include <sound/pcm.h> |
| 17 | #include <sound/soc.h> |
| 18 | #include <sound/soc-dapm.h> |
| 19 | |
| 20 | #include <asm/mach-types.h> |
| 21 | #include <mach/hardware.h> |
| 22 | |
| 23 | #include "../codecs/tlv320aic23.h" |
| 24 | #include "ep93xx-pcm.h" |
Ryan Mallon | 315f7da | 2010-06-08 22:01:12 +1200 | [diff] [blame] | 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; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 32 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
| 33 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
Ryan Mallon | 315f7da | 2010-06-08 22:01:12 +1200 | [diff] [blame] | 34 | int err; |
| 35 | |
| 36 | err = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
| 37 | SND_SOC_DAIFMT_NB_IF | |
| 38 | SND_SOC_DAIFMT_CBS_CFS); |
| 39 | |
| 40 | err = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
| 41 | SND_SOC_DAIFMT_NB_IF | |
| 42 | SND_SOC_DAIFMT_CBS_CFS); |
| 43 | if (err) |
| 44 | return err; |
| 45 | |
| 46 | err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, |
| 47 | SND_SOC_CLOCK_IN); |
| 48 | if (err) |
| 49 | return err; |
| 50 | |
| 51 | err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK, |
| 52 | SND_SOC_CLOCK_OUT); |
| 53 | if (err) |
| 54 | return err; |
| 55 | |
| 56 | return 0; |
| 57 | } |
| 58 | |
| 59 | static struct snd_soc_ops snappercl15_ops = { |
| 60 | .hw_params = snappercl15_hw_params, |
| 61 | }; |
| 62 | |
| 63 | static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { |
| 64 | SND_SOC_DAPM_HP("Headphone Jack", NULL), |
| 65 | SND_SOC_DAPM_LINE("Line In", NULL), |
| 66 | SND_SOC_DAPM_MIC("Mic Jack", NULL), |
| 67 | }; |
| 68 | |
| 69 | static const struct snd_soc_dapm_route audio_map[] = { |
| 70 | {"Headphone Jack", NULL, "LHPOUT"}, |
| 71 | {"Headphone Jack", NULL, "RHPOUT"}, |
| 72 | |
| 73 | {"LLINEIN", NULL, "Line In"}, |
| 74 | {"RLINEIN", NULL, "Line In"}, |
| 75 | |
| 76 | {"MICIN", NULL, "Mic Jack"}, |
| 77 | }; |
| 78 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 79 | static int snappercl15_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd) |
Ryan Mallon | 315f7da | 2010-06-08 22:01:12 +1200 | [diff] [blame] | 80 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 81 | struct snd_soc_codec *codec = rtd->codec; |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame^] | 82 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 83 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame^] | 84 | snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets, |
Ryan Mallon | 315f7da | 2010-06-08 22:01:12 +1200 | [diff] [blame] | 85 | ARRAY_SIZE(tlv320aic23_dapm_widgets)); |
| 86 | |
Liam Girdwood | ce6120c | 2010-11-05 15:53:46 +0200 | [diff] [blame^] | 87 | snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); |
Ryan Mallon | 315f7da | 2010-06-08 22:01:12 +1200 | [diff] [blame] | 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | static struct snd_soc_dai_link snappercl15_dai = { |
| 92 | .name = "tlv320aic23", |
| 93 | .stream_name = "AIC23", |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 94 | .cpu_dai_name = "ep93xx-i2s", |
| 95 | .codec_dai_name = "tlv320aic23-hifi", |
| 96 | .codec_name = "tlv320aic23-codec.0-001a", |
| 97 | .platform_name = "ep93xx-pcm-audio", |
Ryan Mallon | 315f7da | 2010-06-08 22:01:12 +1200 | [diff] [blame] | 98 | .init = snappercl15_tlv320aic23_init, |
| 99 | .ops = &snappercl15_ops, |
| 100 | }; |
| 101 | |
| 102 | static struct snd_soc_card snd_soc_snappercl15 = { |
| 103 | .name = "Snapper CL15", |
Ryan Mallon | 315f7da | 2010-06-08 22:01:12 +1200 | [diff] [blame] | 104 | .dai_link = &snappercl15_dai, |
| 105 | .num_links = 1, |
| 106 | }; |
| 107 | |
Ryan Mallon | 315f7da | 2010-06-08 22:01:12 +1200 | [diff] [blame] | 108 | static struct platform_device *snappercl15_snd_device; |
| 109 | |
| 110 | static int __init snappercl15_init(void) |
| 111 | { |
| 112 | int ret; |
| 113 | |
| 114 | if (!machine_is_snapper_cl15()) |
| 115 | return -ENODEV; |
| 116 | |
| 117 | ret = ep93xx_i2s_acquire(EP93XX_SYSCON_DEVCFG_I2SONAC97, |
| 118 | EP93XX_SYSCON_I2SCLKDIV_ORIDE | |
| 119 | EP93XX_SYSCON_I2SCLKDIV_SPOL); |
| 120 | if (ret) |
| 121 | return ret; |
| 122 | |
| 123 | snappercl15_snd_device = platform_device_alloc("soc-audio", -1); |
| 124 | if (!snappercl15_snd_device) |
| 125 | return -ENOMEM; |
| 126 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 127 | platform_set_drvdata(snappercl15_snd_device, &snd_soc_snappercl15); |
Ryan Mallon | 315f7da | 2010-06-08 22:01:12 +1200 | [diff] [blame] | 128 | ret = platform_device_add(snappercl15_snd_device); |
| 129 | if (ret) |
| 130 | platform_device_put(snappercl15_snd_device); |
| 131 | |
| 132 | return ret; |
| 133 | } |
| 134 | |
| 135 | static void __exit snappercl15_exit(void) |
| 136 | { |
| 137 | platform_device_unregister(snappercl15_snd_device); |
| 138 | ep93xx_i2s_release(); |
| 139 | } |
| 140 | |
| 141 | module_init(snappercl15_init); |
| 142 | module_exit(snappercl15_exit); |
| 143 | |
| 144 | MODULE_AUTHOR("Ryan Mallon <ryan@bluewatersys.com>"); |
| 145 | MODULE_DESCRIPTION("ALSA SoC Snapper CL15"); |
| 146 | MODULE_LICENSE("GPL"); |
| 147 | |