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 *card;
  18         const char *cpu_dai;
  19         const char *codec;
  20         const char *platform;
  21         int id;
  22 };
  23
  24 static int fsi_ak4642_dai_init(struct snd_soc_pcm_runtime *rtd)
  25 {
  26         struct snd_soc_dai *codec = rtd->codec_dai;
  27         struct snd_soc_dai *cpu = rtd->cpu_dai;
  28         int ret;
  29
  30         ret = snd_soc_dai_set_fmt(codec, SND_SOC_DAIFMT_LEFT_J |
  31                                          SND_SOC_DAIFMT_CBM_CFM);
  32         if (ret < 0)
  33                 return ret;
  34
  35         ret = snd_soc_dai_set_sysclk(codec, 0, 11289600, 0);
  36         if (ret < 0)
  37                 return ret;
  38
  39         ret = snd_soc_dai_set_fmt(cpu, SND_SOC_DAIFMT_LEFT_J |
  40                                        SND_SOC_DAIFMT_CBS_CFS);
  41
  42         return ret;
  43 }
  44
  45 static struct snd_soc_dai_link fsi_dai_link = {
  46         .codec_dai_name = "ak4642-hifi",
  47         .init           = fsi_ak4642_dai_init,
  48 };
  49
  50 static struct snd_soc_card fsi_soc_card  = {
  51         .dai_link       = &fsi_dai_link,
  52         .num_links      = 1,
  53 };
  54
  55 static struct platform_device *fsi_snd_device;
  56
  57 static int fsi_ak4642_probe(struct platform_device *pdev)
  58 {
  59         int ret = -ENOMEM;
  60         const struct platform_device_id *id_entry;
  61         struct fsi_ak4642_data *pdata;
  62
  63         id_entry = pdev->id_entry;
  64         if (!id_entry) {
  65                 dev_err(&pdev->dev, "unknown fsi ak4642\n");
  66                 return -ENODEV;
  67         }
  68
  69         pdata = (struct fsi_ak4642_data *)id_entry->driver_data;
  70
  71         fsi_snd_device = platform_device_alloc("soc-audio", pdata->id);
  72         if (!fsi_snd_device)
  73                 goto out;
  74
  75         fsi_dai_link.name               = pdata->name;
  76         fsi_dai_link.stream_name        = pdata->name;
  77         fsi_dai_link.cpu_dai_name       = pdata->cpu_dai;
  78         fsi_dai_link.platform_name      = pdata->platform;
  79         fsi_dai_link.codec_name         = pdata->codec;
  80         fsi_soc_card.name               = pdata->card;
  81
  82         platform_set_drvdata(fsi_snd_device, &fsi_soc_card);
  83         ret = platform_device_add(fsi_snd_device);
  84
  85         if (ret)
  86                 platform_device_put(fsi_snd_device);
  87
  88 out:
  89         return ret;
  90 }
  91
  92 static int fsi_ak4642_remove(struct platform_device *pdev)
  93 {
  94         platform_device_unregister(fsi_snd_device);
  95         return 0;
  96 }
  97
  98 static struct fsi_ak4642_data fsi_a_ak4642 = {
  99         .name           = "AK4642",
 100         .card           = "FSIA (AK4642)",
 101         .cpu_dai        = "fsia-dai",
 102         .codec          = "ak4642-codec.0-0012",
 103         .platform       = "sh_fsi.0",
 104         .id             = FSI_PORT_A,
 105 };
 106
 107 static struct fsi_ak4642_data fsi_b_ak4642 = {
 108         .name           = "AK4642",
 109         .card           = "FSIB (AK4642)",
 110         .cpu_dai        = "fsib-dai",
 111         .codec          = "ak4642-codec.0-0012",
 112         .platform       = "sh_fsi.0",
 113         .id             = FSI_PORT_B,
 114 };
 115
 116 static struct fsi_ak4642_data fsi_a_ak4643 = {
 117         .name           = "AK4643",
 118         .card           = "FSIA (AK4643)",
 119         .cpu_dai        = "fsia-dai",
 120         .codec          = "ak4642-codec.0-0013",
 121         .platform       = "sh_fsi.0",
 122         .id             = FSI_PORT_A,
 123 };
 124
 125 static struct fsi_ak4642_data fsi_b_ak4643 = {
 126         .name           = "AK4643",
 127         .card           = "FSIB (AK4643)",
 128         .cpu_dai        = "fsib-dai",
 129         .codec          = "ak4642-codec.0-0013",
 130         .platform       = "sh_fsi.0",
 131         .id             = FSI_PORT_B,
 132 };
 133
 134 static struct fsi_ak4642_data fsi2_a_ak4642 = {
 135         .name           = "AK4642",
 136         .card           = "FSI2A (AK4642)",
 137         .cpu_dai        = "fsia-dai",
 138         .codec          = "ak4642-codec.0-0012",
 139         .platform       = "sh_fsi2",
 140         .id             = FSI_PORT_A,
 141 };
 142
 143 static struct fsi_ak4642_data fsi2_b_ak4642 = {
 144         .name           = "AK4642",
 145         .card           = "FSI2B (AK4642)",
 146         .cpu_dai        = "fsib-dai",
 147         .codec          = "ak4642-codec.0-0012",
 148         .platform       = "sh_fsi2",
 149         .id             = FSI_PORT_B,
 150 };
 151
 152 static struct fsi_ak4642_data fsi2_a_ak4643 = {
 153         .name           = "AK4643",
 154         .card           = "FSI2A (AK4643)",
 155         .cpu_dai        = "fsia-dai",
 156         .codec          = "ak4642-codec.0-0013",
 157         .platform       = "sh_fsi2",
 158         .id             = FSI_PORT_A,
 159 };
 160
 161 static struct fsi_ak4642_data fsi2_b_ak4643 = {
 162         .name           = "AK4643",
 163         .card           = "FSI2B (AK4643)",
 164         .cpu_dai        = "fsib-dai",
 165         .codec          = "ak4642-codec.0-0013",
 166         .platform       = "sh_fsi2",
 167         .id             = FSI_PORT_B,
 168 };
 169
 170 static struct platform_device_id fsi_id_table[] = {
 171         /* FSI */
 172         { "sh_fsi_a_ak4642",    (kernel_ulong_t)&fsi_a_ak4642 },
 173         { "sh_fsi_b_ak4642",    (kernel_ulong_t)&fsi_b_ak4642 },
 174         { "sh_fsi_a_ak4643",    (kernel_ulong_t)&fsi_a_ak4643 },
 175         { "sh_fsi_b_ak4643",    (kernel_ulong_t)&fsi_b_ak4643 },
 176
 177         /* FSI 2 */
 178         { "sh_fsi2_a_ak4642",   (kernel_ulong_t)&fsi2_a_ak4642 },
 179         { "sh_fsi2_b_ak4642",   (kernel_ulong_t)&fsi2_b_ak4642 },
 180         { "sh_fsi2_a_ak4643",   (kernel_ulong_t)&fsi2_a_ak4643 },
 181         { "sh_fsi2_b_ak4643",   (kernel_ulong_t)&fsi2_b_ak4643 },
 182         {},
 183 };
 184
 185 static struct platform_driver fsi_ak4642 = {
 186         .driver = {
 187                 .name   = "fsi-ak4642-audio",
 188         },
 189         .probe          = fsi_ak4642_probe,
 190         .remove         = fsi_ak4642_remove,
 191         .id_table       = fsi_id_table,
 192 };
 193
 194 static int __init fsi_ak4642_init(void)
 195 {
 196         return platform_driver_register(&fsi_ak4642);
 197 }
 198
 199 static void __exit fsi_ak4642_exit(void)
 200 {
 201         platform_driver_unregister(&fsi_ak4642);
 202 }
 203
 204 module_init(fsi_ak4642_init);
 205 module_exit(fsi_ak4642_exit);
 206
 207 MODULE_LICENSE("GPL");
 208 MODULE_DESCRIPTION("Generic SH4 FSI-AK4642 sound card");
 209 MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");