ALSA: ASoC: Add support for osk5912 (17f9ecf3) · Commits · e / devices / android_kernel_oneplus_sm8150

sound/soc/omap/Kconfig

+8 −0

Original line number	Diff line number	Diff line
		@@ -13,3 +13,11 @@ config SND_OMAP_SOC_N810
		select SND_SOC_TLV320AIC3X
		help
		Say Y if you want to add support for SoC audio on Nokia N810.

		config SND_OMAP_SOC_OSK5912
		tristate "SoC Audio support for omap osk5912"
		depends on SND_OMAP_SOC && MACH_OMAP_OSK
		select SND_OMAP_SOC_MCBSP
		select SND_SOC_TLV320AIC23
		help
		Say Y if you want to add support for SoC audio on osk5912.

sound/soc/omap/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -7,5 +7,7 @@ obj-$(CONFIG_SND_OMAP_SOC_MCBSP) += snd-soc-omap-mcbsp.o

		# OMAP Machine Support
		snd-soc-n810-objs := n810.o
		snd-soc-osk5912-objs := osk5912.o

		obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
		obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o

sound/soc/omap/osk5912.c

0 → 100644

+232 −0

Original line number	Diff line number	Diff line
		/*
		* osk5912.c -- SoC audio for OSK 5912
		*
		* Copyright (C) 2008 Mistral Solutions
		*
		* Contact: Arun KS <arunks@mistralsolutions.com>
		*
		* 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 <linux/gpio.h>
		#include <mach/mcbsp.h>

		#include "omap-mcbsp.h"
		#include "omap-pcm.h"
		#include "../codecs/tlv320aic23.h"

		#define CODEC_CLOCK 12000000

		static struct clk *tlv320aic23_mclk;

		static int osk_startup(struct snd_pcm_substream *substream)
		{
		return clk_enable(tlv320aic23_mclk);
		}

		static void osk_shutdown(struct snd_pcm_substream *substream)
		{
		clk_disable(tlv320aic23_mclk);
		}

		static int osk_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 err;

		/* Set codec DAI configuration */
		err = snd_soc_dai_set_fmt(codec_dai,
		SND_SOC_DAIFMT_DSP_A \|
		SND_SOC_DAIFMT_NB_IF \|
		SND_SOC_DAIFMT_CBM_CFM);
		if (err < 0) {
		printk(KERN_ERR "can't set codec DAI configuration\n");
		return err;
		}

		/* Set cpu DAI configuration */
		err = snd_soc_dai_set_fmt(cpu_dai,
		SND_SOC_DAIFMT_DSP_A \|
		SND_SOC_DAIFMT_NB_IF \|
		SND_SOC_DAIFMT_CBM_CFM);
		if (err < 0) {
		printk(KERN_ERR "can't set cpu DAI configuration\n");
		return err;
		}

		/* Set the codec system clock for DAC and ADC */
		err =
		snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_IN);

		if (err < 0) {
		printk(KERN_ERR "can't set codec system clock\n");
		return err;
		}

		return err;
		}

		static struct snd_soc_ops osk_ops = {
		.startup = osk_startup,
		.hw_params = osk_hw_params,
		.shutdown = osk_shutdown,
		};

		static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
		SND_SOC_DAPM_HP("Headphone Jack", NULL),
		SND_SOC_DAPM_LINE("Line In", NULL),
		SND_SOC_DAPM_MIC("Mic Jack", NULL),
		};

		static const struct snd_soc_dapm_route audio_map[] = {
		{"Headphone Jack", NULL, "LHPOUT"},
		{"Headphone Jack", NULL, "RHPOUT"},

		{"LLINEIN", NULL, "Line In"},
		{"RLINEIN", NULL, "Line In"},

		{"MICIN", NULL, "Mic Jack"},
		};

		static int osk_tlv320aic23_init(struct snd_soc_codec *codec)
		{

		/* Add osk5912 specific widgets */
		snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets,
		ARRAY_SIZE(tlv320aic23_dapm_widgets));

		/* Set up osk5912 specific audio path audio_map */
		snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));

		snd_soc_dapm_enable_pin(codec, "Headphone Jack");
		snd_soc_dapm_enable_pin(codec, "Line In");
		snd_soc_dapm_enable_pin(codec, "Mic Jack");

		snd_soc_dapm_sync(codec);

		return 0;
		}

		/* Digital audio interface glue - connects codec <--> CPU */
		static struct snd_soc_dai_link osk_dai = {
		.name = "TLV320AIC23",
		.stream_name = "AIC23",
		.cpu_dai = &omap_mcbsp_dai[0],
		.codec_dai = &tlv320aic23_dai,
		.init = osk_tlv320aic23_init,
		.ops = &osk_ops,
		};

		/* Audio machine driver */
		static struct snd_soc_machine snd_soc_machine_osk = {
		.name = "OSK5912",
		.dai_link = &osk_dai,
		.num_links = 1,
		};

		/* Audio subsystem */
		static struct snd_soc_device osk_snd_devdata = {
		.machine = &snd_soc_machine_osk,
		.platform = &omap_soc_platform,
		.codec_dev = &soc_codec_dev_tlv320aic23,
		};

		static struct platform_device *osk_snd_device;

		static int __init osk_soc_init(void)
		{
		int err;
		u32 curRate;
		struct device *dev;

		if (!(machine_is_omap_osk()))
		return -ENODEV;

		osk_snd_device = platform_device_alloc("soc-audio", -1);
		if (!osk_snd_device)
		return -ENOMEM;

		platform_set_drvdata(osk_snd_device, &osk_snd_devdata);
		osk_snd_devdata.dev = &osk_snd_device->dev;
		(unsigned int )osk_dai.cpu_dai->private_data = 0; /* McBSP1 */
		err = platform_device_add(osk_snd_device);
		if (err)
		goto err1;

		dev = &osk_snd_device->dev;

		tlv320aic23_mclk = clk_get(dev, "mclk");
		if (IS_ERR(tlv320aic23_mclk)) {
		printk(KERN_ERR "Could not get mclk clock\n");
		return -ENODEV;
		}

		if (clk_get_usecount(tlv320aic23_mclk) > 0) {
		/* MCLK is already in use */
		printk(KERN_WARNING
		"MCLK in use at %d Hz. We change it to %d Hz\n",
		(uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK);
		}

		/*
		* Configure 12 MHz output on MCLK.
		*/
		curRate = (uint) clk_get_rate(tlv320aic23_mclk);
		if (curRate != CODEC_CLOCK) {
		if (clk_set_rate(tlv320aic23_mclk, CODEC_CLOCK)) {
		printk(KERN_ERR "Cannot set MCLK for AIC23 CODEC\n");
		err = -ECANCELED;
		goto err1;
		}
		}

		printk(KERN_INFO "MCLK = %d [%d], usecount = %d\n",
		(uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK,
		clk_get_usecount(tlv320aic23_mclk));

		return 0;
		err1:
		clk_put(tlv320aic23_mclk);
		platform_device_del(osk_snd_device);
		platform_device_put(osk_snd_device);

		return err;

		}

		static void __exit osk_soc_exit(void)
		{
		platform_device_unregister(osk_snd_device);
		}

		module_init(osk_soc_init);
		module_exit(osk_soc_exit);

		MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
		MODULE_DESCRIPTION("ALSA SoC OSK 5912");
		MODULE_LICENSE("GPL");