LXR linux/sound/soc/blackfin/bf5xx-ad1980.c

   1/*
   2 * File:         sound/soc/blackfin/bf5xx-ad1980.c
   3 * Author:       Cliff Cai <Cliff.Cai@analog.com>
   4 *
   5 * Created:      Tue June 06 2008
   6 * Description:  Board driver for AD1980/1 audio codec
   7 *
   8 * Modified:
   9 *               Copyright 2008 Analog Devices Inc.
  10 *
  11 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  12 *
  13 * This program is free software; you can redistribute it and/or modify
  14 * it under the terms of the GNU General Public License as published by
  15 * the Free Software Foundation; either version 2 of the License, or
  16 * (at your option) any later version.
  17 *
  18 * This program is distributed in the hope that it will be useful,
  19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 * GNU General Public License for more details.
  22 *
  23 * You should have received a copy of the GNU General Public License
  24 * along with this program; if not, see the file COPYING, or write
  25 * to the Free Software Foundation, Inc.,
  26 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  27 */
  28
  29#include <linux/module.h>
  30#include <linux/moduleparam.h>
  31#include <linux/device.h>
  32#include <asm/dma.h>
  33
  34#include <sound/core.h>
  35#include <sound/pcm.h>
  36#include <sound/soc.h>
  37
  38#include <linux/gpio.h>
  39#include <asm/portmux.h>
  40
  41#include "../codecs/ad1980.h"
  42#include "bf5xx-sport.h"
  43#include "bf5xx-ac97-pcm.h"
  44#include "bf5xx-ac97.h"
  45
  46static struct snd_soc_card bf5xx_board;
  47
  48static int bf5xx_board_startup(struct snd_pcm_substream *substream)
  49{
  50        struct snd_soc_pcm_runtime *rtd = substream->private_data;
  51        struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
  52
  53        pr_debug("%s enter\n", __func__);
  54        cpu_dai->private_data = sport_handle;
  55        return 0;
  56}
  57
  58static struct snd_soc_ops bf5xx_board_ops = {
  59        .startup = bf5xx_board_startup,
  60};
  61
  62static struct snd_soc_dai_link bf5xx_board_dai = {
  63        .name = "AC97",
  64        .stream_name = "AC97 HiFi",
  65        .cpu_dai = &bfin_ac97_dai,
  66        .codec_dai = &ad1980_dai,
  67        .ops = &bf5xx_board_ops,
  68};
  69
  70static struct snd_soc_card bf5xx_board = {
  71        .name = "bf5xx-board",
  72        .platform = &bf5xx_ac97_soc_platform,
  73        .dai_link = &bf5xx_board_dai,
  74        .num_links = 1,
  75};
  76
  77static struct snd_soc_device bf5xx_board_snd_devdata = {
  78        .card = &bf5xx_board,
  79        .codec_dev = &soc_codec_dev_ad1980,
  80};
  81
  82static struct platform_device *bf5xx_board_snd_device;
  83
  84static int __init bf5xx_board_init(void)
  85{
  86        int ret;
  87
  88        bf5xx_board_snd_device = platform_device_alloc("soc-audio", -1);
  89        if (!bf5xx_board_snd_device)
  90                return -ENOMEM;
  91
  92        platform_set_drvdata(bf5xx_board_snd_device, &bf5xx_board_snd_devdata);
  93        bf5xx_board_snd_devdata.dev = &bf5xx_board_snd_device->dev;
  94        ret = platform_device_add(bf5xx_board_snd_device);
  95
  96        if (ret)
  97                platform_device_put(bf5xx_board_snd_device);
  98
  99        return ret;
 100}
 101
 102static void __exit bf5xx_board_exit(void)
 103{
 104        platform_device_unregister(bf5xx_board_snd_device);
 105}
 106
 107module_init(bf5xx_board_init);
 108module_exit(bf5xx_board_exit);
 109
 110/* Module information */
 111MODULE_AUTHOR("Cliff Cai");
 112MODULE_DESCRIPTION("ALSA SoC AD1980/1 BF5xx board");
 113MODULE_LICENSE("GPL");
 114