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 <linux/module.h>
  14 #include <sound/sh_fsi.h>
  15
  16 struct fsi_ak4642_data {
  17         const char *name;
  18         const char *card;
  19         const char *cpu_dai;
  20         const char *codec;
  21         const char *platform;
  22         int id;
  23 };
  24
  25 static int fsi_ak4642_dai_init(struct snd_soc_pcm_runtime *rtd)
  26 {
  27         struct snd_soc_dai *codec = rtd->codec_dai;
  28         struct snd_soc_dai *cpu = rtd->cpu_dai;
  29         int ret;
  30
  31         ret = snd_soc_dai_set_fmt(codec, SND_SOC_DAIFMT_LEFT_J |
  32                                          SND_SOC_DAIFMT_CBM_CFM);
  33         if (ret < 0)
  34                 return ret;
  35
  36         ret = snd_soc_dai_set_sysclk(codec, 0, 11289600, 0);
  37         if (ret < 0)
  38                 return ret;
  39
  40         ret = snd_soc_dai_set_fmt(cpu, SND_SOC_DAIFMT_LEFT_J |
  41                                        SND_SOC_DAIFMT_CBS_CFS);
  42
  43         return ret;
  44 }
  45
  46 static struct snd_soc_dai_link fsi_dai_link = {
  47         .codec_dai_name = "ak4642-hifi",
  48         .init           = fsi_ak4642_dai_init,
  49 };
  50
  51 static struct snd_soc_card fsi_soc_card  = {
  52         .dai_link       = &fsi_dai_link,
  53         .num_links      = 1,
  54 };
  55
  56 static struct platform_device *fsi_snd_device;
  57
  58 static int fsi_ak4642_probe(struct platform_device *pdev)
  59 {
  60         int ret = -ENOMEM;
  61         const struct platform_device_id *id_entry;
  62         struct fsi_ak4642_data *pdata;
  63
  64         id_entry = pdev->id_entry;
  65         if (!id_entry) {
  66                 dev_err(&pdev->dev, "unknown fsi ak4642\n");
  67                 return -ENODEV;
  68         }
  69
  70         pdata = (struct fsi_ak4642_data *)id_entry->driver_data;
  71
  72         fsi_snd_device = platform_device_alloc("soc-audio", pdata->id);
  73         if (!fsi_snd_device)
  74                 goto out;
  75
  76         fsi_dai_link.name               = pdata->name;
  77         fsi_dai_link.stream_name        = pdata->name;
  78         fsi_dai_link.cpu_dai_name       = pdata->cpu_dai;
  79         fsi_dai_link.platform_name      = pdata->platform;
  80         fsi_dai_link.codec_name         = pdata->codec;
  81         fsi_soc_card.name               = pdata->card;
  82
  83         platform_set_drvdata(fsi_snd_device, &fsi_soc_card);
  84         ret = platform_device_add(fsi_snd_device);
  85
  86         if (ret)
  87                 platform_device_put(fsi_snd_device);
  88
  89 out:
  90         return ret;
  91 }
  92
  93 static int fsi_ak4642_remove(struct platform_device *pdev)
  94 {
  95         platform_device_unregister(fsi_snd_device);
  96         return 0;
  97 }
  98
  99 static struct fsi_ak4642_data fsi_a_ak4642 = {
 100         .name           = "AK4642",
 101         .card           = "FSIA-AK4642",
 102         .cpu_dai        = "fsia-dai",
 103         .codec          = "ak4642-codec.0-0012",
 104         .platform       = "sh_fsi.0",
 105         .id             = FSI_PORT_A,
 106 };
 107
 108 static struct fsi_ak4642_data fsi_b_ak4642 = {
 109         .name           = "AK4642",
 110         .card           = "FSIB-AK4642",
 111         .cpu_dai        = "fsib-dai",
 112         .codec          = "ak4642-codec.0-0012",
 113         .platform       = "sh_fsi.0",
 114         .id             = FSI_PORT_B,
 115 };
 116
 117 static struct fsi_ak4642_data fsi_a_ak4643 = {
 118         .name           = "AK4643",
 119         .card           = "FSIA-AK4643",
 120         .cpu_dai        = "fsia-dai",
 121         .codec          = "ak4642-codec.0-0013",
 122         .platform       = "sh_fsi.0",
 123         .id             = FSI_PORT_A,
 124 };
 125
 126 static struct fsi_ak4642_data fsi_b_ak4643 = {
 127         .name           = "AK4643",
 128         .card           = "FSIB-AK4643",
 129         .cpu_dai        = "fsib-dai",
 130         .codec          = "ak4642-codec.0-0013",
 131         .platform       = "sh_fsi.0",
 132         .id             = FSI_PORT_B,
 133 };
 134
 135 static struct fsi_ak4642_data fsi2_a_ak4642 = {
 136         .name           = "AK4642",
 137         .card           = "FSI2A-AK4642",
 138         .cpu_dai        = "fsia-dai",
 139         .codec          = "ak4642-codec.0-0012",
 140         .platform       = "sh_fsi2",
 141         .id             = FSI_PORT_A,
 142 };
 143
 144 static struct fsi_ak4642_data fsi2_b_ak4642 = {
 145         .name           = "AK4642",
 146         .card           = "FSI2B-AK4642",
 147         .cpu_dai        = "fsib-dai",
 148         .codec          = "ak4642-codec.0-0012",
 149         .platform       = "sh_fsi2",
 150         .id             = FSI_PORT_B,
 151 };
 152
 153 static struct fsi_ak4642_data fsi2_a_ak4643 = {
 154         .name           = "AK4643",
 155         .card           = "FSI2A-AK4643",
 156         .cpu_dai        = "fsia-dai",
 157         .codec          = "ak4642-codec.0-0013",
 158         .platform       = "sh_fsi2",
 159         .id             = FSI_PORT_A,
 160 };
 161
 162 static struct fsi_ak4642_data fsi2_b_ak4643 = {
 163         .name           = "AK4643",
 164         .card           = "FSI2B-AK4643",
 165         .cpu_dai        = "fsib-dai",
 166         .codec          = "ak4642-codec.0-0013",
 167         .platform       = "sh_fsi2",
 168         .id             = FSI_PORT_B,
 169 };
 170
 171 static struct platform_device_id fsi_id_table[] = {
 172         /* FSI */
 173         { "sh_fsi_a_ak4642",    (kernel_ulong_t)&fsi_a_ak4642 },
 174         { "sh_fsi_b_ak4642",    (kernel_ulong_t)&fsi_b_ak4642 },
 175         { "sh_fsi_a_ak4643",    (kernel_ulong_t)&fsi_a_ak4643 },
 176         { "sh_fsi_b_ak4643",    (kernel_ulong_t)&fsi_b_ak4643 },
 177
 178         /* FSI 2 */
 179         { "sh_fsi2_a_ak4642",   (kernel_ulong_t)&fsi2_a_ak4642 },
 180         { "sh_fsi2_b_ak4642",   (kernel_ulong_t)&fsi2_b_ak4642 },
 181         { "sh_fsi2_a_ak4643",   (kernel_ulong_t)&fsi2_a_ak4643 },
 182         { "sh_fsi2_b_ak4643",   (kernel_ulong_t)&fsi2_b_ak4643 },
 183         {},
 184 };
 185
 186 static struct platform_driver fsi_ak4642 = {
 187         .driver = {
 188                 .name   = "fsi-ak4642-audio",
 189         },
 190         .probe          = fsi_ak4642_probe,
 191         .remove         = fsi_ak4642_remove,
 192         .id_table       = fsi_id_table,
 193 };
 194
 195 static int __init fsi_ak4642_init(void)
 196 {
 197         return platform_driver_register(&fsi_ak4642);
 198 }
 199
 200 static void __exit fsi_ak4642_exit(void)
 201 {
 202         platform_driver_unregister(&fsi_ak4642);
 203 }
 204
 205 module_init(fsi_ak4642_init);
 206 module_exit(fsi_ak4642_exit);
 207
 208 MODULE_LICENSE("GPL");
 209 MODULE_DESCRIPTION("Generic SH4 FSI-AK4642 sound card");
 210 MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");