sound/soc/fsl/efika-audio-fabric.c

   1 /*
   2  * Efika driver for the PSC of the Freescale MPC52xx
   3  * configured as AC97 interface
   4  *
   5  * Copyright 2008 Jon Smirl, Digispeaker
   6  * Author: Jon Smirl <jonsmirl@gmail.com>
   7  *
   8  * This file is licensed under the terms of the GNU General Public License
   9  * version 2. This program is licensed "as is" without any warranty of any
  10  * kind, whether express or implied.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/module.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/device.h>
  17 #include <linux/delay.h>
  18 #include <linux/of_device.h>
  19 #include <linux/of_platform.h>
  20 #include <linux/dma-mapping.h>
  21
  22 #include <sound/core.h>
  23 #include <sound/pcm.h>
  24 #include <sound/pcm_params.h>
  25 #include <sound/initval.h>
  26 #include <sound/soc.h>
  27 #include <sound/soc-of-simple.h>
  28
  29 #include "mpc5200_dma.h"
  30 #include "mpc5200_psc_ac97.h"
  31 #include "../codecs/stac9766.h"
  32
  33 #define DRV_NAME "efika-audio-fabric"
  34
  35 static struct snd_soc_device device;
  36 static struct snd_soc_card card;
  37
  38 static struct snd_soc_dai_link efika_fabric_dai[] = {
  39 {
  40         .name = "AC97",
  41         .stream_name = "AC97 Analog",
  42         .codec_dai = &stac9766_dai[STAC9766_DAI_AC97_ANALOG],
  43         .cpu_dai = &psc_ac97_dai[MPC5200_AC97_NORMAL],
  44 },
  45 {
  46         .name = "AC97",
  47         .stream_name = "AC97 IEC958",
  48         .codec_dai = &stac9766_dai[STAC9766_DAI_AC97_DIGITAL],
  49         .cpu_dai = &psc_ac97_dai[MPC5200_AC97_SPDIF],
  50 },
  51 };
  52
  53 static __init int efika_fabric_init(void)
  54 {
  55         struct platform_device *pdev;
  56         int rc;
  57
  58         if (!of_machine_is_compatible("bplan,efika"))
  59                 return -ENODEV;
  60
  61         card.platform = &mpc5200_audio_dma_platform;
  62         card.name = "Efika";
  63         card.dai_link = efika_fabric_dai;
  64         card.num_links = ARRAY_SIZE(efika_fabric_dai);
  65
  66         device.card = &card;
  67         device.codec_dev = &soc_codec_dev_stac9766;
  68
  69         pdev = platform_device_alloc("soc-audio", 1);
  70         if (!pdev) {
  71                 pr_err("efika_fabric_init: platform_device_alloc() failed\n");
  72                 return -ENODEV;
  73         }
  74
  75         platform_set_drvdata(pdev, &device);
  76         device.dev = &pdev->dev;
  77
  78         rc = platform_device_add(pdev);
  79         if (rc) {
  80                 pr_err("efika_fabric_init: platform_device_add() failed\n");
  81                 return -ENODEV;
  82         }
  83         return 0;
  84 }
  85
  86 module_init(efika_fabric_init);
  87
  88
  89 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
  90 MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");
  91 MODULE_LICENSE("GPL");
  92