forked from Minki/linux
09ae3aaf3c
Use the common DAI DMA data struct for omap, this allows us to use the common helper function to configure the DMA slave config based on the DAI DMA data. For omap-dmic and omap-mcpdm also move the DMA data from a global variable to the driver state struct. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
142 lines
3.6 KiB
C
142 lines
3.6 KiB
C
/*
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* am3517evm.c -- ALSA SoC support for OMAP3517 / AM3517 EVM
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*
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* Author: Anuj Aggarwal <anuj.aggarwal@ti.com>
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*
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* Based on sound/soc/omap/beagle.c by Steve Sakoman
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*
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* Copyright (C) 2009 Texas Instruments Incorporated
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
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* whether express or implied; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <linux/module.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 <asm/mach-types.h>
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#include <linux/platform_data/asoc-ti-mcbsp.h>
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#include "omap-mcbsp.h"
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#include "../codecs/tlv320aic23.h"
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#define CODEC_CLOCK 12000000
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static int am3517evm_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 *codec_dai = rtd->codec_dai;
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int ret;
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/* Set the codec system clock for DAC and ADC */
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ret = snd_soc_dai_set_sysclk(codec_dai, 0,
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CODEC_CLOCK, SND_SOC_CLOCK_IN);
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if (ret < 0)
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printk(KERN_ERR "can't set codec system clock\n");
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return ret;
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}
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static struct snd_soc_ops am3517evm_ops = {
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.hw_params = am3517evm_hw_params,
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};
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/* am3517evm machine dapm widgets */
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static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Line Out", NULL),
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SND_SOC_DAPM_LINE("Line In", NULL),
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SND_SOC_DAPM_MIC("Mic In", NULL),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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/* Line Out connected to LLOUT, RLOUT */
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{"Line Out", NULL, "LOUT"},
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{"Line Out", NULL, "ROUT"},
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{"LLINEIN", NULL, "Line In"},
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{"RLINEIN", NULL, "Line In"},
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{"MICIN", NULL, "Mic In"},
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};
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/* Digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link am3517evm_dai = {
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.name = "TLV320AIC23",
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.stream_name = "AIC23",
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.cpu_dai_name = "omap-mcbsp.1",
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.codec_dai_name = "tlv320aic23-hifi",
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.platform_name = "omap-pcm-audio",
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.codec_name = "tlv320aic23-codec.2-001a",
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM,
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.ops = &am3517evm_ops,
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};
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/* Audio machine driver */
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static struct snd_soc_card snd_soc_am3517evm = {
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.name = "am3517evm",
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.owner = THIS_MODULE,
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.dai_link = &am3517evm_dai,
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.num_links = 1,
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.dapm_widgets = tlv320aic23_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
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.dapm_routes = audio_map,
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.num_dapm_routes = ARRAY_SIZE(audio_map),
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};
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static struct platform_device *am3517evm_snd_device;
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static int __init am3517evm_soc_init(void)
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{
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int ret;
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if (!machine_is_omap3517evm())
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return -ENODEV;
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pr_info("OMAP3517 / AM3517 EVM SoC init\n");
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am3517evm_snd_device = platform_device_alloc("soc-audio", -1);
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if (!am3517evm_snd_device) {
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printk(KERN_ERR "Platform device allocation failed\n");
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return -ENOMEM;
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}
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platform_set_drvdata(am3517evm_snd_device, &snd_soc_am3517evm);
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ret = platform_device_add(am3517evm_snd_device);
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if (ret)
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goto err1;
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return 0;
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err1:
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printk(KERN_ERR "Unable to add platform device\n");
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platform_device_put(am3517evm_snd_device);
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return ret;
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}
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static void __exit am3517evm_soc_exit(void)
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{
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platform_device_unregister(am3517evm_snd_device);
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}
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module_init(am3517evm_soc_init);
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module_exit(am3517evm_soc_exit);
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MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
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MODULE_DESCRIPTION("ALSA SoC OMAP3517 / AM3517 EVM");
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MODULE_LICENSE("GPL v2");
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