projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| dce944db BS |
1 | /* |
| 2 | * File: sound/soc/blackfin/bf5xx-ad1836.c | |
| 3 | * Author: Barry Song <Barry.Song@analog.com> | |
| 4 | * | |
| 5 | * Created: Aug 4 2009 | |
| 6 | * Description: Board driver for ad1836 sound chip | |
| 7 | * | |
| 8 | * Bugs: Enter bugs at http://blackfin.uclinux.org/ | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of the GNU General Public License as published by | |
| 12 | * the Free Software Foundation; either version 2 of the License, or | |
| 13 | * (at your option) any later version. | |
| 14 | * | |
| 15 | */ | |
| 16 | ||
| 17 | #include <linux/module.h> | |
| 18 | #include <linux/moduleparam.h> | |
| 19 | #include <linux/device.h> | |
| 20 | #include <sound/core.h> | |
| 21 | #include <sound/pcm.h> | |
| 22 | #include <sound/soc.h> | |
| dce944db BS |
23 | #include <sound/pcm_params.h> |
| 24 | ||
| 25 | #include <asm/blackfin.h> | |
| 26 | #include <asm/cacheflush.h> | |
| 27 | #include <asm/irq.h> | |
| 28 | #include <asm/dma.h> | |
| 29 | #include <asm/portmux.h> | |
| 30 | ||
| 31 | #include "../codecs/ad1836.h" | |
| 32 | #include "bf5xx-sport.h" | |
| 33 | ||
| 34 | #include "bf5xx-tdm-pcm.h" | |
| 35 | #include "bf5xx-tdm.h" | |
| 36 | ||
| 37 | static struct snd_soc_card bf5xx_ad1836; | |
| 38 | ||
| 39 | static int bf5xx_ad1836_startup(struct snd_pcm_substream *substream) | |
| 40 | { | |
| 41 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
| f0fba2ad | 42 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
| dce944db | 43 | |
| f0fba2ad | 44 | snd_soc_dai_set_drvdata(cpu_dai, sport_handle); |
| dce944db BS |
45 | return 0; |
| 46 | } | |
| 47 | ||
| 48 | static int bf5xx_ad1836_hw_params(struct snd_pcm_substream *substream, | |
| 49 | struct snd_pcm_hw_params *params) | |
| 50 | { | |
| 51 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
| f0fba2ad LG |
52 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
| 53 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
| 08db48f1 | 54 | unsigned int channel_map[] = {0, 4, 1, 5, 2, 6, 3, 7}; |
| dce944db BS |
55 | int ret = 0; |
| 56 | /* set cpu DAI configuration */ | |
| 57 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | | |
| 58 | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM); | |
| 59 | if (ret < 0) | |
| 60 | return ret; | |
| 61 | ||
| 62 | /* set codec DAI configuration */ | |
| 63 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A | | |
| 64 | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM); | |
| 65 | if (ret < 0) | |
| 66 | return ret; | |
| 67 | ||
| 08db48f1 BS |
68 | /* set cpu DAI channel mapping */ |
| 69 | ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map), | |
| 70 | channel_map, ARRAY_SIZE(channel_map), channel_map); | |
| 71 | if (ret < 0) | |
| 72 | return ret; | |
| 73 | ||
| dce944db BS |
74 | return 0; |
| 75 | } | |
| 76 | ||
| 77 | static struct snd_soc_ops bf5xx_ad1836_ops = { | |
| 78 | .startup = bf5xx_ad1836_startup, | |
| 79 | .hw_params = bf5xx_ad1836_hw_params, | |
| 80 | }; | |
| 81 | ||
| 82 | static struct snd_soc_dai_link bf5xx_ad1836_dai = { | |
| 83 | .name = "ad1836", | |
| 84 | .stream_name = "AD1836", | |
| f0fba2ad LG |
85 | .cpu_dai_name = "bf5xx-tdm", |
| 86 | .codec_dai_name = "ad1836-hifi", | |
| 87 | .platform_name = "bf5xx-tdm-pcm-audio", | |
| 88 | .codec_name = "ad1836-codec.0", | |
| dce944db BS |
89 | .ops = &bf5xx_ad1836_ops, |
| 90 | }; | |
| 91 | ||
| 92 | static struct snd_soc_card bf5xx_ad1836 = { | |
| 93 | .name = "bf5xx_ad1836", | |
| dce944db BS |
94 | .dai_link = &bf5xx_ad1836_dai, |
| 95 | .num_links = 1, | |
| 96 | }; | |
| 97 | ||
| dce944db BS |
98 | static struct platform_device *bfxx_ad1836_snd_device; |
| 99 | ||
| 100 | static int __init bf5xx_ad1836_init(void) | |
| 101 | { | |
| 102 | int ret; | |
| 103 | ||
| 104 | bfxx_ad1836_snd_device = platform_device_alloc("soc-audio", -1); | |
| 105 | if (!bfxx_ad1836_snd_device) | |
| 106 | return -ENOMEM; | |
| 107 | ||
| f0fba2ad | 108 | platform_set_drvdata(bfxx_ad1836_snd_device, &bf5xx_ad1836); |
| dce944db BS |
109 | ret = platform_device_add(bfxx_ad1836_snd_device); |
| 110 | ||
| 111 | if (ret) | |
| 112 | platform_device_put(bfxx_ad1836_snd_device); | |
| 113 | ||
| 114 | return ret; | |
| 115 | } | |
| 116 | ||
| 117 | static void __exit bf5xx_ad1836_exit(void) | |
| 118 | { | |
| 119 | platform_device_unregister(bfxx_ad1836_snd_device); | |
| 120 | } | |
| 121 | ||
| 122 | module_init(bf5xx_ad1836_init); | |
| 123 | module_exit(bf5xx_ad1836_exit); | |
| 124 | ||
| 125 | /* Module information */ | |
| 126 | MODULE_AUTHOR("Barry Song"); | |
| 127 | MODULE_DESCRIPTION("ALSA SoC AD1836 board driver"); | |
| 128 | MODULE_LICENSE("GPL"); | |
| 129 |