ASoC: Add support for IGEP v2 (b2a2236d) · Commits · e / devices / android_kernel_teracube_emerald

sound/soc/omap/Kconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -109,3 +109,10 @@ config SND_OMAP_SOC_ZOOM2
		help
		Say Y if you want to add support for Soc audio on Zoom2 board.

		config SND_OMAP_SOC_IGEP0020
		tristate "SoC Audio support for IGEP v2"
		depends on TWL4030_CORE && SND_OMAP_SOC && MACH_IGEP0020
		select SND_OMAP_SOC_MCBSP
		select SND_SOC_TWL4030
		help
		Say Y if you want to add support for Soc audio on IGEP v2 board.

sound/soc/omap/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@ snd-soc-sdp3430-objs := sdp3430.o
		snd-soc-omap3pandora-objs := omap3pandora.o
		snd-soc-omap3beagle-objs := omap3beagle.o
		snd-soc-zoom2-objs := zoom2.o
		snd-soc-igep0020-objs := igep0020.o

		obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
		obj-$(CONFIG_SND_OMAP_SOC_AMS_DELTA) += snd-soc-ams-delta.o
		@@ -29,3 +30,4 @@ obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o
		obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += snd-soc-omap3pandora.o
		obj-$(CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE) += snd-soc-omap3beagle.o
		obj-$(CONFIG_SND_OMAP_SOC_ZOOM2) += snd-soc-zoom2.o
		obj-$(CONFIG_SND_OMAP_SOC_IGEP0020) += snd-soc-igep0020.o

sound/soc/omap/igep0020.c

0 → 100644

+148 −0

Original line number	Diff line number	Diff line
		/*
		* igep0020.c -- SoC audio for IGEP v2
		*
		* Based on sound/soc/omap/overo.c by Steve Sakoman
		*
		* This program is free software; you can redistribute it and/or
		* modify it under the terms of the GNU General Public License
		* version 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful, but
		* WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		* General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write to the Free Software
		* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
		* 02110-1301 USA
		*
		*/

		#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 <plat/mcbsp.h>

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

		static int igep2_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 igep2_ops = {
		.hw_params = igep2_hw_params,
		};

		/* Digital audio interface glue - connects codec <--> CPU */
		static struct snd_soc_dai_link igep2_dai = {
		.name = "TWL4030",
		.stream_name = "TWL4030",
		.cpu_dai = &omap_mcbsp_dai[0],
		.codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
		.ops = &igep2_ops,
		};

		/* Audio machine driver */
		static struct snd_soc_card snd_soc_card_igep2 = {
		.name = "igep2",
		.platform = &omap_soc_platform,
		.dai_link = &igep2_dai,
		.num_links = 1,
		};

		/* Audio subsystem */
		static struct snd_soc_device igep2_snd_devdata = {
		.card = &snd_soc_card_igep2,
		.codec_dev = &soc_codec_dev_twl4030,
		};

		static struct platform_device *igep2_snd_device;

		static int __init igep2_soc_init(void)
		{
		int ret;

		if (!machine_is_igep0020()) {
		pr_debug("Not IGEP v2!\n");
		return -ENODEV;
		}
		printk(KERN_INFO "IGEP v2 SoC init\n");

		igep2_snd_device = platform_device_alloc("soc-audio", -1);
		if (!igep2_snd_device) {
		printk(KERN_ERR "Platform device allocation failed\n");
		return -ENOMEM;
		}

		platform_set_drvdata(igep2_snd_device, &igep2_snd_devdata);
		igep2_snd_devdata.dev = &igep2_snd_device->dev;
		(unsigned int )igep2_dai.cpu_dai->private_data = 1; /* McBSP2 */

		ret = platform_device_add(igep2_snd_device);
		if (ret)
		goto err1;

		return 0;

		err1:
		printk(KERN_ERR "Unable to add platform device\n");
		platform_device_put(igep2_snd_device);

		return ret;
		}
		module_init(igep2_soc_init);

		static void __exit igep2_soc_exit(void)
		{
		platform_device_unregister(igep2_snd_device);
		}
		module_exit(igep2_soc_exit);

		MODULE_AUTHOR("Enric Balletbo i Serra <eballetbo@iseebcn.com>");
		MODULE_DESCRIPTION("ALSA SoC IGEP v2");
		MODULE_LICENSE("GPL");