sound/soc/sh/fsi-ak4642.c

   1 /*
   2  * FSI-AK464x sound support for ms7724se
   3  *
   4  * Copyright (C) 2009 Renesas Solutions Corp.
   5  * Kuninori Morimoto <morimoto.kuninori@renesas.com>
   6  *
   7  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file "COPYING" in the main directory of this archive
   9  * for more details.
  10  */
  11
  12 #include <linux/platform_device.h>
  13 #include <sound/sh_fsi.h>
  14
  15 struct fsi_ak4642_data {
  16         const char *name;
  17         const char *cpu_dai;
  18         const char *codec;
  19         const char *platform;
  20 };
  21
  22 static int fsi_ak4642_dai_init(struct snd_soc_pcm_runtime *rtd)
  23 {
  24         struct snd_soc_dai *dai = rtd->codec_dai;
  25         int ret;
  26
  27         ret = snd_soc_dai_set_fmt(dai, SND_SOC_DAIFMT_CBM_CFM);
  28         if (ret < 0)
  29                 return ret;
  30
  31         ret = snd_soc_dai_set_sysclk(dai, 0, 11289600, 0);
  32
  33         return ret;
  34 }
  35
  36 static struct snd_soc_dai_link fsi_dai_link = {
  37         /* .name */
  38         /* .stream_name */
  39         /* .cpu_dai_name */
  40         .codec_dai_name = "ak4642-hifi",
  41         /* .platform_name */
  42         /* .codec_name */
  43         .init           = fsi_ak4642_dai_init,
  44         .ops            = NULL,
  45 };
  46
  47 static struct snd_soc_card fsi_soc_card  = {
  48         .name           = "FSI (AK4642)",
  49         .dai_link       = &fsi_dai_link,
  50         .num_links      = 1,
  51 };
  52
  53 static struct platform_device *fsi_snd_device;
  54
  55 static int fsi_ak4642_probe(struct platform_device *pdev)
  56 {
  57         int ret = -ENOMEM;
  58         const struct platform_device_id *id_entry;
  59         struct fsi_ak4642_data *pdata;
  60
  61         id_entry = pdev->id_entry;
  62         if (!id_entry) {
  63                 dev_err(&pdev->dev, "unknown fsi ak4642\n");
  64                 return -ENODEV;
  65         }
  66
  67         pdata = (struct fsi_ak4642_data *)id_entry->driver_data;
  68
  69         fsi_snd_device = platform_device_alloc("soc-audio", FSI_PORT_A);
  70         if (!fsi_snd_device)
  71                 goto out;
  72
  73         fsi_dai_link.name               = pdata->name;
  74         fsi_dai_link.stream_name        = pdata->name;
  75         fsi_dai_link.cpu_dai_name       = pdata->cpu_dai;
  76         fsi_dai_link.platform_name      = pdata->platform;
  77         fsi_dai_link.codec_name         = pdata->codec;
  78
  79         platform_set_drvdata(fsi_snd_device, &fsi_soc_card);
  80         ret = platform_device_add(fsi_snd_device);
  81
  82         if (ret)
  83                 platform_device_put(fsi_snd_device);
  84
  85 out:
  86         return ret;
  87 }
  88
  89 static int fsi_ak4642_remove(struct platform_device *pdev)
  90 {
  91         platform_device_unregister(fsi_snd_device);
  92         return 0;
  93 }
  94
  95 static struct fsi_ak4642_data fsi_a_ak4642 = {
  96         .name           = "AK4642",
  97         .cpu_dai        = "fsia-dai",
  98         .codec          = "ak4642-codec.0-0012",
  99         .platform       = "sh_fsi.0",
 100 };
 101
 102 static struct fsi_ak4642_data fsi_b_ak4642 = {
 103         .name           = "AK4642",
 104         .cpu_dai        = "fsib-dai",
 105         .codec          = "ak4642-codec.0-0012",
 106         .platform       = "sh_fsi.0",
 107 };
 108
 109 static struct fsi_ak4642_data fsi_a_ak4643 = {
 110         .name           = "AK4643",
 111         .cpu_dai        = "fsia-dai",
 112         .codec          = "ak4642-codec.0-0013",
 113         .platform       = "sh_fsi.0",
 114 };
 115
 116 static struct fsi_ak4642_data fsi_b_ak4643 = {
 117         .name           = "AK4643",
 118         .cpu_dai        = "fsib-dai",
 119         .codec          = "ak4642-codec.0-0013",
 120         .platform       = "sh_fsi.0",
 121 };
 122
 123 static struct fsi_ak4642_data fsi2_a_ak4642 = {
 124         .name           = "AK4642",
 125         .cpu_dai        = "fsia-dai",
 126         .codec          = "ak4642-codec.0-0012",
 127         .platform       = "sh_fsi2",
 128 };
 129
 130 static struct fsi_ak4642_data fsi2_b_ak4642 = {
 131         .name           = "AK4642",
 132         .cpu_dai        = "fsib-dai",
 133         .codec          = "ak4642-codec.0-0012",
 134         .platform       = "sh_fsi2",
 135 };
 136
 137 static struct fsi_ak4642_data fsi2_a_ak4643 = {
 138         .name           = "AK4643",
 139         .cpu_dai        = "fsia-dai",
 140         .codec          = "ak4642-codec.0-0013",
 141         .platform       = "sh_fsi2",
 142 };
 143
 144 static struct fsi_ak4642_data fsi2_b_ak4643 = {
 145         .name           = "AK4643",
 146         .cpu_dai        = "fsib-dai",
 147         .codec          = "ak4642-codec.0-0013",
 148         .platform       = "sh_fsi2",
 149 };
 150
 151 static struct platform_device_id fsi_id_table[] = {
 152         /* FSI */
 153         { "sh_fsi_a_ak4642",    (kernel_ulong_t)&fsi_a_ak4642 },
 154         { "sh_fsi_b_ak4642",    (kernel_ulong_t)&fsi_b_ak4642 },
 155         { "sh_fsi_a_ak4643",    (kernel_ulong_t)&fsi_a_ak4643 },
 156         { "sh_fsi_b_ak4643",    (kernel_ulong_t)&fsi_b_ak4643 },
 157
 158         /* FSI 2 */
 159         { "sh_fsi2_a_ak4642",   (kernel_ulong_t)&fsi2_a_ak4642 },
 160         { "sh_fsi2_b_ak4642",   (kernel_ulong_t)&fsi2_b_ak4642 },
 161         { "sh_fsi2_a_ak4643",   (kernel_ulong_t)&fsi2_a_ak4643 },
 162         { "sh_fsi2_b_ak4643",   (kernel_ulong_t)&fsi2_b_ak4643 },
 163         {},
 164 };
 165
 166 static struct platform_driver fsi_ak4642 = {
 167         .driver = {
 168                 .name   = "fsi-ak4642-audio",
 169         },
 170         .probe          = fsi_ak4642_probe,
 171         .remove         = fsi_ak4642_remove,
 172         .id_table       = fsi_id_table,
 173 };
 174
 175 static int __init fsi_ak4642_init(void)
 176 {
 177         return platform_driver_register(&fsi_ak4642);
 178 }
 179
 180 static void __exit fsi_ak4642_exit(void)
 181 {
 182         platform_driver_unregister(&fsi_ak4642);
 183 }
 184
 185 module_init(fsi_ak4642_init);
 186 module_exit(fsi_ak4642_exit);
 187
 188 MODULE_LICENSE("GPL");
 189 MODULE_DESCRIPTION("Generic SH4 FSI-AK4642 sound card");
 190 MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");