ASoC: Added OMAP3 EVM support in ASoC. (14610ce7) · Commits · e / devices / android_kernel_fairphone_FP3

sound/soc/omap/Kconfig

+8 −0

Original line number	Diff line number	Diff line
		@@ -39,6 +39,14 @@ config SND_OMAP_SOC_OMAP2EVM
		help
		Say Y if you want to add support for SoC audio on the omap2evm board.

		config SND_OMAP_SOC_OMAP3EVM
		tristate "SoC Audio support for OMAP3EVM board"
		depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP3EVM
		select SND_OMAP_SOC_MCBSP
		select SND_SOC_TWL4030
		help
		Say Y if you want to add support for SoC audio on the omap3evm board.

		config SND_OMAP_SOC_SDP3430
		tristate "SoC Audio support for Texas Instruments SDP3430"
		depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP_3430SDP

sound/soc/omap/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -10,6 +10,7 @@ snd-soc-n810-objs := n810.o
		snd-soc-osk5912-objs := osk5912.o
		snd-soc-overo-objs := overo.o
		snd-soc-omap2evm-objs := omap2evm.o
		snd-soc-omap3evm-objs := omap3evm.o
		snd-soc-sdp3430-objs := sdp3430.o
		snd-soc-omap3pandora-objs := omap3pandora.o
		snd-soc-omap3beagle-objs := omap3beagle.o
		@@ -18,6 +19,7 @@ obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
		obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o
		obj-$(CONFIG_SND_OMAP_SOC_OVERO) += snd-soc-overo.o
		obj-$(CONFIG_MACH_OMAP2EVM) += snd-soc-omap2evm.o
		obj-$(CONFIG_MACH_OMAP3EVM) += snd-soc-omap3evm.o
		obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o
		obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += snd-soc-omap3pandora.o
		obj-$(CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE) += snd-soc-omap3beagle.o

sound/soc/omap/omap3evm.c

0 → 100644

+147 −0

Original line number	Diff line number	Diff line
		/*
		* omap3evm.c -- ALSA SoC support for OMAP3 EVM
		*
		* Author: Anuj Aggarwal <anuj.aggarwal@ti.com>
		*
		* Based on sound/soc/omap/beagle.c by Steve Sakoman
		*
		* Copyright (C) 2008 Texas Instruments, Incorporated
		*
		* This program is free software; you can redistribute it and/or modify it
		* under the terms of the GNU General Public License as published by the
		* Free Software Foundation version 2.
		*
		* This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
		* whether express or implied; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		* General Public License for more details.
		*/

		#include <linux/clk.h>
		#include <linux/platform_device.h>
		#include <sound/core.h>
		#include <sound/pcm.h>
		#include <sound/soc.h>
		#include <sound/soc-dapm.h>

		#include <asm/mach-types.h>
		#include <mach/hardware.h>
		#include <mach/gpio.h>
		#include <mach/mcbsp.h>

		#include "omap-mcbsp.h"
		#include "omap-pcm.h"
		#include "../codecs/twl4030.h"

		static int omap3evm_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params)
		{
		struct snd_soc_pcm_runtime *rtd = substream->private_data;
		struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
		struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
		int ret;

		/* Set codec DAI configuration */
		ret = snd_soc_dai_set_fmt(codec_dai,
		SND_SOC_DAIFMT_I2S \|
		SND_SOC_DAIFMT_NB_NF \|
		SND_SOC_DAIFMT_CBM_CFM);
		if (ret < 0) {
		printk(KERN_ERR "Can't set codec DAI configuration\n");
		return ret;
		}

		/* Set cpu DAI configuration */
		ret = snd_soc_dai_set_fmt(cpu_dai,
		SND_SOC_DAIFMT_I2S \|
		SND_SOC_DAIFMT_NB_NF \|
		SND_SOC_DAIFMT_CBM_CFM);
		if (ret < 0) {
		printk(KERN_ERR "Can't set cpu DAI configuration\n");
		return ret;
		}

		/* Set the codec system clock for DAC and ADC */
		ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
		SND_SOC_CLOCK_IN);
		if (ret < 0) {
		printk(KERN_ERR "Can't set codec system clock\n");
		return ret;
		}

		return 0;
		}

		static struct snd_soc_ops omap3evm_ops = {
		.hw_params = omap3evm_hw_params,
		};

		/* Digital audio interface glue - connects codec <--> CPU */
		static struct snd_soc_dai_link omap3evm_dai = {
		.name = "TWL4030",
		.stream_name = "TWL4030",
		.cpu_dai = &omap_mcbsp_dai[0],
		.codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
		.ops = &omap3evm_ops,
		};

		/* Audio machine driver */
		static struct snd_soc_card snd_soc_omap3evm = {
		.name = "omap3evm",
		.platform = &omap_soc_platform,
		.dai_link = &omap3evm_dai,
		.num_links = 1,
		};

		/* Audio subsystem */
		static struct snd_soc_device omap3evm_snd_devdata = {
		.card = &snd_soc_omap3evm,
		.codec_dev = &soc_codec_dev_twl4030,
		};

		static struct platform_device *omap3evm_snd_device;

		static int __init omap3evm_soc_init(void)
		{
		int ret;

		if (!machine_is_omap3evm()) {
		pr_err("Not OMAP3 EVM!\n");
		return -ENODEV;
		}
		pr_info("OMAP3 EVM SoC init\n");

		omap3evm_snd_device = platform_device_alloc("soc-audio", -1);
		if (!omap3evm_snd_device) {
		printk(KERN_ERR "Platform device allocation failed\n");
		return -ENOMEM;
		}

		platform_set_drvdata(omap3evm_snd_device, &omap3evm_snd_devdata);
		omap3evm_snd_devdata.dev = &omap3evm_snd_device->dev;
		(unsigned int )omap3evm_dai.cpu_dai->private_data = 1;

		ret = platform_device_add(omap3evm_snd_device);
		if (ret)
		goto err1;

		return 0;

		err1:
		printk(KERN_ERR "Unable to add platform device\n");
		platform_device_put(omap3evm_snd_device);

		return ret;
		}

		static void __exit omap3evm_soc_exit(void)
		{
		platform_device_unregister(omap3evm_snd_device);
		}

		module_init(omap3evm_soc_init);
		module_exit(omap3evm_soc_exit);

		MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
		MODULE_DESCRIPTION("ALSA SoC OMAP3 EVM");
		MODULE_LICENSE("GPLv2");