ASoC: tegra: TrimSlice machine support (1307394a) · Commits · e / devices / android_kernel_fairphone_FP4

sound/soc/tegra/Kconfig

+8 −0

Original line number	Original line	Diff line number	Diff line
	@@ -30,3 +30,11 @@ config SND_SOC_TEGRA_WM8903
	boards using the WM8093 codec. Currently, the supported boards are		boards using the WM8093 codec. Currently, the supported boards are
	Harmony, Ventana, Seaboard, Kaen, and Aebl.		Harmony, Ventana, Seaboard, Kaen, and Aebl.

			config SND_SOC_TEGRA_TRIMSLICE
			tristate "SoC Audio support for TrimSlice board"
			depends on SND_SOC_TEGRA && MACH_TRIMSLICE && I2C
			select SND_SOC_TEGRA_I2S
			select SND_SOC_TLV320AIC23
			help
			Say Y or M here if you want to add support for SoC audio on the
			TrimSlice platform.

sound/soc/tegra/Makefile

+2 −0

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	@@ -11,5 +11,7 @@ obj-$(CONFIG_SND_SOC_TEGRA_I2S) += snd-soc-tegra-i2s.o

	# Tegra machine Support		# Tegra machine Support
	snd-soc-tegra-wm8903-objs := tegra_wm8903.o		snd-soc-tegra-wm8903-objs := tegra_wm8903.o
			snd-soc-tegra-trimslice-objs := trimslice.o

	obj-$(CONFIG_SND_SOC_TEGRA_WM8903) += snd-soc-tegra-wm8903.o		obj-$(CONFIG_SND_SOC_TEGRA_WM8903) += snd-soc-tegra-wm8903.o
			obj-$(CONFIG_SND_SOC_TEGRA_TRIMSLICE) += snd-soc-tegra-trimslice.o

sound/soc/tegra/trimslice.c

0 → 100644

+228 −0

Original line number	Original line	Diff line number	Diff line
			/*
			* trimslice.c - TrimSlice machine ASoC driver
			*
			* Copyright (C) 2011 - CompuLab, Ltd.
			* Author: Mike Rapoport <mike@compulab.co.il>
			*
			* Based on code copyright/by:
			* Author: Stephen Warren <swarren@nvidia.com>
			* Copyright (C) 2010-2011 - NVIDIA, Inc.
			*
			* 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 <asm/mach-types.h>

			#include <linux/module.h>
			#include <linux/platform_device.h>
			#include <linux/slab.h>

			#include <sound/core.h>
			#include <sound/jack.h>
			#include <sound/pcm.h>
			#include <sound/pcm_params.h>
			#include <sound/soc.h>

			#include "../codecs/tlv320aic23.h"

			#include "tegra_das.h"
			#include "tegra_i2s.h"
			#include "tegra_pcm.h"
			#include "tegra_asoc_utils.h"

			#define DRV_NAME "tegra-snd-trimslice"

			struct tegra_trimslice {
			struct tegra_asoc_utils_data util_data;
			};

			static int trimslice_asoc_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->codec_dai;
			struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
			struct snd_soc_codec *codec = rtd->codec;
			struct snd_soc_card *card = codec->card;
			struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
			int srate, mclk;
			int err;

			srate = params_rate(params);
			mclk = 128 * srate;

			err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk);
			if (err < 0) {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
			}

			err = snd_soc_dai_set_fmt(codec_dai,
			SND_SOC_DAIFMT_I2S \|
			SND_SOC_DAIFMT_NB_NF \|
			SND_SOC_DAIFMT_CBS_CFS);
			if (err < 0) {
			dev_err(card->dev, "codec_dai fmt not set\n");
			return err;
			}

			err = snd_soc_dai_set_fmt(cpu_dai,
			SND_SOC_DAIFMT_I2S \|
			SND_SOC_DAIFMT_NB_NF \|
			SND_SOC_DAIFMT_CBS_CFS);
			if (err < 0) {
			dev_err(card->dev, "cpu_dai fmt not set\n");
			return err;
			}

			err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
			SND_SOC_CLOCK_IN);
			if (err < 0) {
			dev_err(card->dev, "codec_dai clock not set\n");
			return err;
			}

			return 0;
			}

			static struct snd_soc_ops trimslice_asoc_ops = {
			.hw_params = trimslice_asoc_hw_params,
			};

			static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
			SND_SOC_DAPM_HP("Line Out", NULL),
			SND_SOC_DAPM_LINE("Line In", NULL),
			};

			static const struct snd_soc_dapm_route trimslice_audio_map[] = {
			{"Line Out", NULL, "LOUT"},
			{"Line Out", NULL, "ROUT"},

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

			static int trimslice_asoc_init(struct snd_soc_pcm_runtime *rtd)
			{
			struct snd_soc_codec *codec = rtd->codec;
			struct snd_soc_dapm_context *dapm = &codec->dapm;

			snd_soc_dapm_nc_pin(dapm, "LHPOUT");
			snd_soc_dapm_nc_pin(dapm, "RHPOUT");
			snd_soc_dapm_nc_pin(dapm, "MICIN");

			snd_soc_dapm_sync(dapm);

			return 0;
			}

			static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
			.name = "TLV320AIC23",
			.stream_name = "AIC23",
			.codec_name = "tlv320aic23-codec.2-001a",
			.platform_name = "tegra-pcm-audio",
			.cpu_dai_name = "tegra-i2s.0",
			.codec_dai_name = "tlv320aic23-hifi",
			.init = trimslice_asoc_init,
			.ops = &trimslice_asoc_ops,
			};

			static struct snd_soc_card snd_soc_trimslice = {
			.name = "tegra-trimslice",
			.dai_link = &trimslice_tlv320aic23_dai,
			.num_links = 1,

			.dapm_widgets = trimslice_dapm_widgets,
			.num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
			.dapm_routes = trimslice_audio_map,
			.num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
			};

			static __devinit int tegra_snd_trimslice_probe(struct platform_device *pdev)
			{
			struct snd_soc_card *card = &snd_soc_trimslice;
			struct tegra_trimslice *trimslice;
			int ret;

			trimslice = kzalloc(sizeof(struct tegra_trimslice), GFP_KERNEL);
			if (!trimslice) {
			dev_err(&pdev->dev, "Can't allocate tegra_trimslice\n");
			return -ENOMEM;
			}

			ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
			if (ret)
			goto err_free_trimslice;

			card->dev = &pdev->dev;
			platform_set_drvdata(pdev, card);
			snd_soc_card_set_drvdata(card, trimslice);

			ret = snd_soc_register_card(card);
			if (ret) {
			dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
			ret);
			goto err_fini_utils;
			}

			return 0;

			err_fini_utils:
			tegra_asoc_utils_fini(&trimslice->util_data);
			err_free_trimslice:
			kfree(trimslice);
			return ret;
			}

			static int __devexit tegra_snd_trimslice_remove(struct platform_device *pdev)
			{
			struct snd_soc_card *card = platform_get_drvdata(pdev);
			struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);

			snd_soc_unregister_card(card);

			tegra_asoc_utils_fini(&trimslice->util_data);

			kfree(trimslice);

			return 0;
			}

			static struct platform_driver tegra_snd_trimslice_driver = {
			.driver = {
			.name = DRV_NAME,
			.owner = THIS_MODULE,
			},
			.probe = tegra_snd_trimslice_probe,
			.remove = __devexit_p(tegra_snd_trimslice_remove),
			};

			static int __init snd_tegra_trimslice_init(void)
			{
			return platform_driver_register(&tegra_snd_trimslice_driver);
			}
			module_init(snd_tegra_trimslice_init);

			static void __exit snd_tegra_trimslice_exit(void)
			{
			platform_driver_unregister(&tegra_snd_trimslice_driver);
			}
			module_exit(snd_tegra_trimslice_exit);

			MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
			MODULE_DESCRIPTION("Trimslice machine ASoC driver");
			MODULE_LICENSE("GPL");
			MODULE_ALIAS("platform:" DRV_NAME);