ASoC: new board driver to connect bfin-5xx with ad1836 codec
As discussed, the patch uses the original TDM order without rewriting. For the match between TDM slot number and audio channel number, a new API need be added. Signed-off-by: Barry Song <21cnbao@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Barry Song
Mark Brown
parent
d2c0bdaa93
commit
dce944dbb2
3 changed files with 138 additions and 0 deletions
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@ -88,6 +88,14 @@ config SND_BF5XX_SOC_AC97
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select SND_SOC_AC97_BUS
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select SND_BF5XX_SOC_SPORT
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config SND_BF5XX_SOC_AD1836
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tristate "SoC AD1836 Audio support for BF5xx"
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depends on SND_BF5XX_TDM
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select SND_BF5XX_SOC_TDM
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select SND_SOC_AD1836
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help
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Say Y if you want to add support for SoC audio on BF5xx STAMP/EZKIT.
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config SND_BF5XX_SOC_AD1980
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tristate "SoC AD1980/1 Audio support for BF5xx"
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depends on SND_BF5XX_AC97
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@ -16,11 +16,13 @@ obj-$(CONFIG_SND_BF5XX_SOC_I2S) += snd-soc-bf5xx-i2s.o
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obj-$(CONFIG_SND_BF5XX_SOC_TDM) += snd-soc-bf5xx-tdm.o
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# Blackfin Machine Support
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snd-ad1836-objs := bf5xx-ad1836.o
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snd-ad1980-objs := bf5xx-ad1980.o
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snd-ssm2602-objs := bf5xx-ssm2602.o
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snd-ad73311-objs := bf5xx-ad73311.o
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snd-ad1938-objs := bf5xx-ad1938.o
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obj-$(CONFIG_SND_BF5XX_SOC_AD1836) += snd-ad1836.o
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obj-$(CONFIG_SND_BF5XX_SOC_AD1980) += snd-ad1980.o
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obj-$(CONFIG_SND_BF5XX_SOC_SSM2602) += snd-ssm2602.o
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obj-$(CONFIG_SND_BF5XX_SOC_AD73311) += snd-ad73311.o
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128
sound/soc/blackfin/bf5xx-ad1836.c
Normal file
128
sound/soc/blackfin/bf5xx-ad1836.c
Normal file
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@ -0,0 +1,128 @@
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/*
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* File: sound/soc/blackfin/bf5xx-ad1836.c
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* Author: Barry Song <Barry.Song@analog.com>
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*
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* Created: Aug 4 2009
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* Description: Board driver for ad1836 sound chip
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*
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/pcm_params.h>
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#include <asm/blackfin.h>
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#include <asm/cacheflush.h>
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#include <asm/irq.h>
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#include <asm/dma.h>
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#include <asm/portmux.h>
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#include "../codecs/ad1836.h"
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#include "bf5xx-sport.h"
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#include "bf5xx-tdm-pcm.h"
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#include "bf5xx-tdm.h"
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static struct snd_soc_card bf5xx_ad1836;
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static int bf5xx_ad1836_startup(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
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cpu_dai->private_data = sport_handle;
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return 0;
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}
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static int bf5xx_ad1836_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
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struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
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int ret = 0;
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/* set cpu DAI configuration */
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ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
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SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0)
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return ret;
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/* set codec DAI configuration */
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ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A |
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SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0)
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return ret;
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return 0;
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}
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static struct snd_soc_ops bf5xx_ad1836_ops = {
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.startup = bf5xx_ad1836_startup,
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.hw_params = bf5xx_ad1836_hw_params,
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};
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static struct snd_soc_dai_link bf5xx_ad1836_dai = {
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.name = "ad1836",
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.stream_name = "AD1836",
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.cpu_dai = &bf5xx_tdm_dai,
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.codec_dai = &ad1836_dai,
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.ops = &bf5xx_ad1836_ops,
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};
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static struct snd_soc_card bf5xx_ad1836 = {
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.name = "bf5xx_ad1836",
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.platform = &bf5xx_tdm_soc_platform,
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.dai_link = &bf5xx_ad1836_dai,
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.num_links = 1,
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};
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static struct snd_soc_device bf5xx_ad1836_snd_devdata = {
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.card = &bf5xx_ad1836,
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.codec_dev = &soc_codec_dev_ad1836,
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};
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static struct platform_device *bfxx_ad1836_snd_device;
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static int __init bf5xx_ad1836_init(void)
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{
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int ret;
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bfxx_ad1836_snd_device = platform_device_alloc("soc-audio", -1);
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if (!bfxx_ad1836_snd_device)
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return -ENOMEM;
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platform_set_drvdata(bfxx_ad1836_snd_device, &bf5xx_ad1836_snd_devdata);
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bf5xx_ad1836_snd_devdata.dev = &bfxx_ad1836_snd_device->dev;
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ret = platform_device_add(bfxx_ad1836_snd_device);
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if (ret)
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platform_device_put(bfxx_ad1836_snd_device);
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return ret;
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}
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static void __exit bf5xx_ad1836_exit(void)
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{
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platform_device_unregister(bfxx_ad1836_snd_device);
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}
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module_init(bf5xx_ad1836_init);
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module_exit(bf5xx_ad1836_exit);
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/* Module information */
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MODULE_AUTHOR("Barry Song");
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MODULE_DESCRIPTION("ALSA SoC AD1836 board driver");
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MODULE_LICENSE("GPL");
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