[mirror_ubuntu-zesty-kernel.git] / sound / soc / tegra / trimslice.c

/*
 * 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 <linux/module.h>
#include <linux/of.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_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_card *card = rtd->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_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 struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
	.name = "TLV320AIC23",
	.stream_name = "AIC23",
	.codec_dai_name = "tlv320aic23-hifi",
	.ops = &trimslice_asoc_ops,
	.dai_fmt = SND_SOC_DAIFMT_I2S |
		   SND_SOC_DAIFMT_NB_NF |
		   SND_SOC_DAIFMT_CBS_CFS,
};

static struct snd_soc_card snd_soc_trimslice = {
	.name = "tegra-trimslice",
	.owner = THIS_MODULE,
	.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),
	.fully_routed = true,
};

static int tegra_snd_trimslice_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct snd_soc_card *card = &snd_soc_trimslice;
	struct tegra_trimslice *trimslice;
	int ret;

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

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

	trimslice_tlv320aic23_dai.codec_of_node = of_parse_phandle(np,
			"nvidia,audio-codec", 0);
	if (!trimslice_tlv320aic23_dai.codec_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,audio-codec' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	trimslice_tlv320aic23_dai.cpu_of_node = of_parse_phandle(np,
			"nvidia,i2s-controller", 0);
	if (!trimslice_tlv320aic23_dai.cpu_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,i2s-controller' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	trimslice_tlv320aic23_dai.platform_of_node =
			trimslice_tlv320aic23_dai.cpu_of_node;

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

	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:
	return ret;
}

static int 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);

	return 0;
}

static const struct of_device_id trimslice_of_match[] = {
	{ .compatible = "nvidia,tegra-audio-trimslice", },
	{},
};
MODULE_DEVICE_TABLE(of, trimslice_of_match);

static struct platform_driver tegra_snd_trimslice_driver = {
	.driver = {
		.name = DRV_NAME,
		.of_match_table = trimslice_of_match,
	},
	.probe = tegra_snd_trimslice_probe,
	.remove = tegra_snd_trimslice_remove,
};
module_platform_driver(tegra_snd_trimslice_driver);

MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
MODULE_DESCRIPTION("Trimslice machine ASoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
Commit	Line	Data
1307394a MR	1	/*
	2	* trimslice.c - TrimSlice machine ASoC driver
	3	*
	4	* Copyright (C) 2011 - CompuLab, Ltd.
	5	* Author: Mike Rapoport <mike@compulab.co.il>
	6	*
	7	* Based on code copyright/by:
	8	* Author: Stephen Warren <swarren@nvidia.com>
	9	* Copyright (C) 2010-2011 - NVIDIA, Inc.
	10	*
	11	* This program is free software; you can redistribute it and/or
	12	* modify it under the terms of the GNU General Public License
	13	* version 2 as published by the Free Software Foundation.
	14	*
	15	* This program is distributed in the hope that it will be useful, but
	16	* WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	18	* General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	23	* 02110-1301 USA
	24	*
	25	*/
	26
1307394a	27	#include <linux/module.h>
6264f668	28	#include <linux/of.h>
1307394a MR	29	#include <linux/platform_device.h>
	30	#include <linux/slab.h>
	31
	32	#include <sound/core.h>
	33	#include <sound/jack.h>
	34	#include <sound/pcm.h>
	35	#include <sound/pcm_params.h>
	36	#include <sound/soc.h>
	37
	38	#include "../codecs/tlv320aic23.h"
	39
1307394a MR	40	#include "tegra_asoc_utils.h"
	41
	42	#define DRV_NAME "tegra-snd-trimslice"
	43
	44	struct tegra_trimslice {
	45	struct tegra_asoc_utils_data util_data;
	46	};
	47
	48	static int trimslice_asoc_hw_params(struct snd_pcm_substream *substream,
	49	struct snd_pcm_hw_params *params)
	50	{
	51	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	52	struct snd_soc_dai *codec_dai = rtd->codec_dai;
093c4e5c	53	struct snd_soc_card *card = rtd->card;
1307394a MR	54	struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
	55	int srate, mclk;
	56	int err;
	57
	58	srate = params_rate(params);
	59	mclk = 128 * srate;
	60
	61	err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk);
	62	if (err < 0) {
	63	dev_err(card->dev, "Can't configure clocks\n");
	64	return err;
	65	}
	66
1307394a MR	67	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
	68	SND_SOC_CLOCK_IN);
	69	if (err < 0) {
	70	dev_err(card->dev, "codec_dai clock not set\n");
	71	return err;
	72	}
	73
	74	return 0;
	75	}
	76
	77	static struct snd_soc_ops trimslice_asoc_ops = {
	78	.hw_params = trimslice_asoc_hw_params,
	79	};
	80
	81	static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
	82	SND_SOC_DAPM_HP("Line Out", NULL),
	83	SND_SOC_DAPM_LINE("Line In", NULL),
	84	};
	85
	86	static const struct snd_soc_dapm_route trimslice_audio_map[] = {
	87	{"Line Out", NULL, "LOUT"},
	88	{"Line Out", NULL, "ROUT"},
	89
	90	{"LLINEIN", NULL, "Line In"},
	91	{"RLINEIN", NULL, "Line In"},
	92	};
	93
1307394a MR	94	static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
	95	.name = "TLV320AIC23",
	96	.stream_name = "AIC23",
1307394a	97	.codec_dai_name = "tlv320aic23-hifi",
1307394a	98	.ops = &trimslice_asoc_ops,
408dafc4 SW	99	.dai_fmt = SND_SOC_DAIFMT_I2S \|
	100	SND_SOC_DAIFMT_NB_NF \|
	101	SND_SOC_DAIFMT_CBS_CFS,
1307394a MR	102	};
	103
	104	static struct snd_soc_card snd_soc_trimslice = {
	105	.name = "tegra-trimslice",
b16eaf9f	106	.owner = THIS_MODULE,
1307394a MR	107	.dai_link = &trimslice_tlv320aic23_dai,
	108	.num_links = 1,
	109
	110	.dapm_widgets = trimslice_dapm_widgets,
	111	.num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
	112	.dapm_routes = trimslice_audio_map,
	113	.num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
504855d1	114	.fully_routed = true,
1307394a MR	115	};
1307394a MR	116
4652a0d0	117	static int tegra_snd_trimslice_probe(struct platform_device *pdev)
1307394a	118	{
bd85a06c	119	struct device_node *np = pdev->dev.of_node;
1307394a MR	120	struct snd_soc_card *card = &snd_soc_trimslice;
	121	struct tegra_trimslice *trimslice;
	122	int ret;
	123
45c26091 SW	124	trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice),
45c26091 SW	125	GFP_KERNEL);
1307394a MR	126	if (!trimslice) {
1307394a MR	127	dev_err(&pdev->dev, "Can't allocate tegra_trimslice\n");
bd85a06c SW	128	return -ENOMEM;
	129	}
	130
	131	card->dev = &pdev->dev;
	132	platform_set_drvdata(pdev, card);
	133	snd_soc_card_set_drvdata(card, trimslice);
	134
	135	trimslice_tlv320aic23_dai.codec_of_node = of_parse_phandle(np,
	136	"nvidia,audio-codec", 0);
	137	if (!trimslice_tlv320aic23_dai.codec_of_node) {
	138	dev_err(&pdev->dev,
	139	"Property 'nvidia,audio-codec' missing or invalid\n");
	140	ret = -EINVAL;
45c26091	141	goto err;
1307394a MR	142	}
1307394a MR	143
bd85a06c SW	144	trimslice_tlv320aic23_dai.cpu_of_node = of_parse_phandle(np,
	145	"nvidia,i2s-controller", 0);
	146	if (!trimslice_tlv320aic23_dai.cpu_of_node) {
	147	dev_err(&pdev->dev,
	148	"Property 'nvidia,i2s-controller' missing or invalid\n");
	149	ret = -EINVAL;
	150	goto err;
6264f668 SW	151	}
6264f668 SW	152
bd85a06c SW	153	trimslice_tlv320aic23_dai.platform_of_node =
	154	trimslice_tlv320aic23_dai.cpu_of_node;
	155
1307394a MR	156	ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
1307394a MR	157	if (ret)
45c26091	158	goto err;
1307394a	159
1307394a MR	160	ret = snd_soc_register_card(card);
	161	if (ret) {
	162	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
	163	ret);
	164	goto err_fini_utils;
	165	}
	166
	167	return 0;
	168
	169	err_fini_utils:
	170	tegra_asoc_utils_fini(&trimslice->util_data);
45c26091	171	err:
1307394a MR	172	return ret;
	173	}
	174
4652a0d0	175	static int tegra_snd_trimslice_remove(struct platform_device *pdev)
1307394a MR	176	{
	177	struct snd_soc_card *card = platform_get_drvdata(pdev);
	178	struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
	179
	180	snd_soc_unregister_card(card);
	181
	182	tegra_asoc_utils_fini(&trimslice->util_data);
	183
1307394a MR	184	return 0;
	185	}
	186
f6e65744	187	static const struct of_device_id trimslice_of_match[] = {
6264f668 SW	188	{ .compatible = "nvidia,tegra-audio-trimslice", },
	189	{},
	190	};
	191	MODULE_DEVICE_TABLE(of, trimslice_of_match);
	192
1307394a MR	193	static struct platform_driver tegra_snd_trimslice_driver = {
	194	.driver = {
	195	.name = DRV_NAME,
6264f668	196	.of_match_table = trimslice_of_match,
1307394a MR	197	},
1307394a MR	198	.probe = tegra_snd_trimslice_probe,
4652a0d0	199	.remove = tegra_snd_trimslice_remove,
1307394a	200	};
45c26091	201	module_platform_driver(tegra_snd_trimslice_driver);
1307394a MR	202
	203	MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
	204	MODULE_DESCRIPTION("Trimslice machine ASoC driver");
	205	MODULE_LICENSE("GPL");
	206	MODULE_ALIAS("platform:" DRV_NAME);