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
  28 #include "mpc5200_dma.h"
  29 #include "mpc5200_psc_ac97.h"
  30 #include "../codecs/stac9766.h"
  31
  32 #define DRV_NAME "efika-audio-fabric"
  33
  34 static struct snd_soc_card card;
  35
  36 static struct snd_soc_dai_link efika_fabric_dai[] = {
  37 {
  38         .name = "AC97",
  39         .stream_name = "AC97 Analog",
  40         .codec_dai_name = "stac9766-hifi-analog",
  41         .cpu_dai_name = "mpc5200-psc-ac97.0",
  42         .platform_name = "mpc5200-pcm-audio",
  43         .codec_name = "stac9766-codec",
  44 },
  45 {
  46         .name = "AC97",
  47         .stream_name = "AC97 IEC958",
  48         .codec_dai_name = "stac9766-hifi-IEC958",
  49         .cpu_dai_name = "mpc5200-psc-ac97.1",
  50         .platform_name = "mpc5200-pcm-audio",
  51         .codec_name = "stac9766-codec",
  52 },
  53 };
  54
  55 static __init int efika_fabric_init(void)
  56 {
  57         struct platform_device *pdev;
  58         int rc;
  59
  60         if (!of_machine_is_compatible("bplan,efika"))
  61                 return -ENODEV;
  62
  63         card.name = "Efika";
  64         card.dai_link = efika_fabric_dai;
  65         card.num_links = ARRAY_SIZE(efika_fabric_dai);
  66
  67
  68         pdev = platform_device_alloc("soc-audio", 1);
  69         if (!pdev) {
  70                 pr_err("efika_fabric_init: platform_device_alloc() failed\n");
  71                 return -ENODEV;
  72         }
  73
  74         platform_set_drvdata(pdev, &card);
  75
  76         rc = platform_device_add(pdev);
  77         if (rc) {
  78                 pr_err("efika_fabric_init: platform_device_add() failed\n");
  79                 platform_device_put(pdev);
  80                 return -ENODEV;
  81         }
  82         return 0;
  83 }
  84
  85 module_init(efika_fabric_init);
  86
  87
  88 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
  89 MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");
  90 MODULE_LICENSE("GPL");
  91