[linux-2.6-block.git] / sound / soc / intel / boards / bytcht_da7213.c

/*
 *  bytcht-da7213.c - ASoc Machine driver for Intel Baytrail and
 *             Cherrytrail-based platforms, with Dialog DA7213 codec
 *
 *  Copyright (C) 2017 Intel Corporation
 *  Author: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
 *
 *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 *  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 of the License.
 *
 *  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.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */

#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <asm/platform_sst_audio.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "../../codecs/da7213.h"
#include "../atom/sst-atom-controls.h"

static const struct snd_kcontrol_new controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Mic"),
	SOC_DAPM_PIN_SWITCH("Aux In"),
};

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

static const struct snd_soc_dapm_route audio_map[] = {
	{"Headphone Jack", NULL, "HPL"},
	{"Headphone Jack", NULL, "HPR"},

	{"AUXL", NULL, "Aux In"},
	{"AUXR", NULL, "Aux In"},

	/* Assume Mic1 is linked to Headset and Mic2 to on-board mic */
	{"MIC1", NULL, "Headset Mic"},
	{"MIC2", NULL, "Mic"},

	/* SOC-codec link */
	{"ssp2 Tx", NULL, "codec_out0"},
	{"ssp2 Tx", NULL, "codec_out1"},
	{"codec_in0", NULL, "ssp2 Rx"},
	{"codec_in1", NULL, "ssp2 Rx"},

	{"Playback", NULL, "ssp2 Tx"},
	{"ssp2 Rx", NULL, "Capture"},
};

static int codec_fixup(struct snd_soc_pcm_runtime *rtd,
		       struct snd_pcm_hw_params *params)
{
	int ret;
	struct snd_interval *rate = hw_param_interval(params,
			SNDRV_PCM_HW_PARAM_RATE);
	struct snd_interval *channels = hw_param_interval(params,
						SNDRV_PCM_HW_PARAM_CHANNELS);

	/* The DSP will convert the FE rate to 48k, stereo, 24bits */
	rate->min = rate->max = 48000;
	channels->min = channels->max = 2;

	/* set SSP2 to 24-bit */
	params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);

	/*
	 * Default mode for SSP configuration is TDM 4 slot, override config
	 * with explicit setting to I2S 2ch 24-bit. The word length is set with
	 * dai_set_tdm_slot() since there is no other API exposed
	 */
	ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
				  SND_SOC_DAIFMT_I2S     |
				  SND_SOC_DAIFMT_NB_NF   |
				  SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0) {
		dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
	if (ret < 0) {
		dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
		return ret;
	}

	return 0;
}

static int aif1_startup(struct snd_pcm_substream *substream)
{
	return snd_pcm_hw_constraint_single(substream->runtime,
			SNDRV_PCM_HW_PARAM_RATE, 48000);
}

static int aif1_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;
	int ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, DA7213_CLKSRC_MCLK,
				     19200000, SND_SOC_CLOCK_IN);
	if (ret < 0)
		dev_err(codec_dai->dev, "can't set codec sysclk configuration\n");

	ret = snd_soc_dai_set_pll(codec_dai, 0,
			DA7213_SYSCLK_PLL_SRM, 0, DA7213_PLL_FREQ_OUT_98304000);
	if (ret < 0) {
		dev_err(codec_dai->dev, "failed to start PLL: %d\n", ret);
		return -EIO;
	}

	return ret;
}

static int aif1_hw_free(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	int ret;

	ret = snd_soc_dai_set_pll(codec_dai, 0,
				  DA7213_SYSCLK_MCLK, 0, 0);
	if (ret < 0) {
		dev_err(codec_dai->dev, "failed to stop PLL: %d\n", ret);
		return -EIO;
	}

	return ret;
}

static const struct snd_soc_ops aif1_ops = {
	.startup = aif1_startup,
};

static const struct snd_soc_ops ssp2_ops = {
	.hw_params = aif1_hw_params,
	.hw_free = aif1_hw_free,

};

static struct snd_soc_dai_link dailink[] = {
	[MERR_DPCM_AUDIO] = {
		.name = "Audio Port",
		.stream_name = "Audio",
		.cpu_dai_name = "media-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
		.nonatomic = true,
		.dynamic = 1,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &aif1_ops,
	},
	[MERR_DPCM_DEEP_BUFFER] = {
		.name = "Deep-Buffer Audio Port",
		.stream_name = "Deep-Buffer Audio",
		.cpu_dai_name = "deepbuffer-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
		.nonatomic = true,
		.dynamic = 1,
		.dpcm_playback = 1,
		.ops = &aif1_ops,
	},
	/* CODEC<->CODEC link */
	/* back ends */
	{
		.name = "SSP2-Codec",
		.id = 0,
		.cpu_dai_name = "ssp2-port",
		.platform_name = "sst-mfld-platform",
		.no_pcm = 1,
		.codec_dai_name = "da7213-hifi",
		.codec_name = "i2c-DLGS7213:00",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
						| SND_SOC_DAIFMT_CBS_CFS,
		.be_hw_params_fixup = codec_fixup,
		.nonatomic = true,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &ssp2_ops,
	},
};

/* SoC card */
static struct snd_soc_card bytcht_da7213_card = {
	.name = "bytcht-da7213",
	.owner = THIS_MODULE,
	.dai_link = dailink,
	.num_links = ARRAY_SIZE(dailink),
	.controls = controls,
	.num_controls = ARRAY_SIZE(controls),
	.dapm_widgets = dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
};

static char codec_name[SND_ACPI_I2C_ID_LEN];

static int bytcht_da7213_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card;
	struct snd_soc_acpi_mach *mach;
	const char *i2c_name = NULL;
	int dai_index = 0;
	int ret_val = 0;
	int i;

	mach = (&pdev->dev)->platform_data;
	card = &bytcht_da7213_card;
	card->dev = &pdev->dev;

	/* fix index of codec dai */
	for (i = 0; i < ARRAY_SIZE(dailink); i++) {
		if (!strcmp(dailink[i].codec_name, "i2c-DLGS7213:00")) {
			dai_index = i;
			break;
		}
	}

	/* fixup codec name based on HID */
	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
	if (i2c_name) {
		snprintf(codec_name, sizeof(codec_name),
			"%s%s", "i2c-", i2c_name);
		dailink[dai_index].codec_name = codec_name;
	}

	ret_val = devm_snd_soc_register_card(&pdev->dev, card);
	if (ret_val) {
		dev_err(&pdev->dev,
			"snd_soc_register_card failed %d\n", ret_val);
		return ret_val;
	}
	platform_set_drvdata(pdev, card);
	return ret_val;
}

static struct platform_driver bytcht_da7213_driver = {
	.driver = {
		.name = "bytcht_da7213",
	},
	.probe = bytcht_da7213_probe,
};
module_platform_driver(bytcht_da7213_driver);

MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail+DA7213 Machine driver");
MODULE_AUTHOR("Pierre-Louis Bossart");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:bytcht_da7213");
Commit	Line	Data
82cf89de PLB	1	/*
	2	* bytcht-da7213.c - ASoc Machine driver for Intel Baytrail and
	3	* Cherrytrail-based platforms, with Dialog DA7213 codec
	4	*
	5	* Copyright (C) 2017 Intel Corporation
	6	* Author: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
	7	*
	8	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; version 2 of the License.
	13	*
	14	* This program is distributed in the hope that it will be useful, but
	15	* WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	17	* General Public License for more details.
	18	*
	19	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	20	*/
	21
	22	#include <linux/module.h>
	23	#include <linux/acpi.h>
	24	#include <linux/platform_device.h>
	25	#include <linux/slab.h>
	26	#include <asm/platform_sst_audio.h>
	27	#include <sound/pcm.h>
	28	#include <sound/pcm_params.h>
	29	#include <sound/soc.h>
7feb2f78	30	#include <sound/soc-acpi.h>
82cf89de PLB	31	#include "../../codecs/da7213.h"
82cf89de PLB	32	#include "../atom/sst-atom-controls.h"
82cf89de PLB	33
	34	static const struct snd_kcontrol_new controls[] = {
	35	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	36	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	37	SOC_DAPM_PIN_SWITCH("Mic"),
	38	SOC_DAPM_PIN_SWITCH("Aux In"),
	39	};
	40
	41	static const struct snd_soc_dapm_widget dapm_widgets[] = {
	42	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	43	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	44	SND_SOC_DAPM_MIC("Mic", NULL),
	45	SND_SOC_DAPM_LINE("Aux In", NULL),
	46	};
	47
	48	static const struct snd_soc_dapm_route audio_map[] = {
	49	{"Headphone Jack", NULL, "HPL"},
	50	{"Headphone Jack", NULL, "HPR"},
	51
	52	{"AUXL", NULL, "Aux In"},
	53	{"AUXR", NULL, "Aux In"},
	54
	55	/* Assume Mic1 is linked to Headset and Mic2 to on-board mic */
	56	{"MIC1", NULL, "Headset Mic"},
	57	{"MIC2", NULL, "Mic"},
	58
	59	/* SOC-codec link */
	60	{"ssp2 Tx", NULL, "codec_out0"},
	61	{"ssp2 Tx", NULL, "codec_out1"},
	62	{"codec_in0", NULL, "ssp2 Rx"},
	63	{"codec_in1", NULL, "ssp2 Rx"},
	64
	65	{"Playback", NULL, "ssp2 Tx"},
	66	{"ssp2 Rx", NULL, "Capture"},
	67	};
	68
	69	static int codec_fixup(struct snd_soc_pcm_runtime *rtd,
	70	struct snd_pcm_hw_params *params)
	71	{
	72	int ret;
	73	struct snd_interval *rate = hw_param_interval(params,
	74	SNDRV_PCM_HW_PARAM_RATE);
	75	struct snd_interval *channels = hw_param_interval(params,
	76	SNDRV_PCM_HW_PARAM_CHANNELS);
	77
	78	/* The DSP will convert the FE rate to 48k, stereo, 24bits */
	79	rate->min = rate->max = 48000;
	80	channels->min = channels->max = 2;
	81
	82	/* set SSP2 to 24-bit */
	83	params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
	84
	85	/*
	86	* Default mode for SSP configuration is TDM 4 slot, override config
	87	* with explicit setting to I2S 2ch 24-bit. The word length is set with
	88	* dai_set_tdm_slot() since there is no other API exposed
	89	*/
	90	ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
	91	SND_SOC_DAIFMT_I2S \|
	92	SND_SOC_DAIFMT_NB_NF \|
	93	SND_SOC_DAIFMT_CBS_CFS);
	94	if (ret < 0) {
	95	dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
	96	return ret;
97	}
98
99	ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
100	if (ret < 0) {
101	dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
102	return ret;
103	}
104
105	return 0;
106	}
107
108	static int aif1_startup(struct snd_pcm_substream *substream)
109	{
110	return snd_pcm_hw_constraint_single(substream->runtime,
111	SNDRV_PCM_HW_PARAM_RATE, 48000);
112	}
113
114	static int aif1_hw_params(struct snd_pcm_substream *substream,
115	struct snd_pcm_hw_params *params)
116	{
117	struct snd_soc_pcm_runtime *rtd = substream->private_data;
118	struct snd_soc_dai *codec_dai = rtd->codec_dai;
119	int ret;
120
121	ret = snd_soc_dai_set_sysclk(codec_dai, DA7213_CLKSRC_MCLK,
122	19200000, SND_SOC_CLOCK_IN);
123	if (ret < 0)
124	dev_err(codec_dai->dev, "can't set codec sysclk configuration\n");
125
126	ret = snd_soc_dai_set_pll(codec_dai, 0,
127	DA7213_SYSCLK_PLL_SRM, 0, DA7213_PLL_FREQ_OUT_98304000);
128	if (ret < 0) {
129	dev_err(codec_dai->dev, "failed to start PLL: %d\n", ret);
130	return -EIO;
131	}
132
133	return ret;
134	}
135
136	static int aif1_hw_free(struct snd_pcm_substream *substream)
137	{
138	struct snd_soc_pcm_runtime *rtd = substream->private_data;
139	struct snd_soc_dai *codec_dai = rtd->codec_dai;
140	int ret;
141
142	ret = snd_soc_dai_set_pll(codec_dai, 0,
143	DA7213_SYSCLK_MCLK, 0, 0);
144	if (ret < 0) {
145	dev_err(codec_dai->dev, "failed to stop PLL: %d\n", ret);
146	return -EIO;
147	}
148
149	return ret;
150	}
151
152	static const struct snd_soc_ops aif1_ops = {
153	.startup = aif1_startup,
154	};
155
156	static const struct snd_soc_ops ssp2_ops = {
157	.hw_params = aif1_hw_params,
158	.hw_free = aif1_hw_free,
159
160	};
161
162	static struct snd_soc_dai_link dailink[] = {
163	[MERR_DPCM_AUDIO] = {
164	.name = "Audio Port",
165	.stream_name = "Audio",
166	.cpu_dai_name = "media-cpu-dai",
167	.codec_dai_name = "snd-soc-dummy-dai",
168	.codec_name = "snd-soc-dummy",
169	.platform_name = "sst-mfld-platform",
170	.nonatomic = true,
171	.dynamic = 1,
172	.dpcm_playback = 1,
173	.dpcm_capture = 1,
174	.ops = &aif1_ops,
175	},
176	[MERR_DPCM_DEEP_BUFFER] = {
177	.name = "Deep-Buffer Audio Port",
178	.stream_name = "Deep-Buffer Audio",
179	.cpu_dai_name = "deepbuffer-cpu-dai",
180	.codec_dai_name = "snd-soc-dummy-dai",
181	.codec_name = "snd-soc-dummy",
182	.platform_name = "sst-mfld-platform",
183	.nonatomic = true,
184	.dynamic = 1,
185	.dpcm_playback = 1,
186	.ops = &aif1_ops,
187	},
82cf89de PLB	188	/* CODEC<->CODEC link */
	189	/* back ends */
	190	{
	191	.name = "SSP2-Codec",
149f7757	192	.id = 0,
82cf89de PLB	193	.cpu_dai_name = "ssp2-port",
	194	.platform_name = "sst-mfld-platform",
	195	.no_pcm = 1,
	196	.codec_dai_name = "da7213-hifi",
	197	.codec_name = "i2c-DLGS7213:00",
	198	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	199	\| SND_SOC_DAIFMT_CBS_CFS,
	200	.be_hw_params_fixup = codec_fixup,
	201	.nonatomic = true,
	202	.dpcm_playback = 1,
	203	.dpcm_capture = 1,
	204	.ops = &ssp2_ops,
	205	},
	206	};
	207
	208	/* SoC card */
	209	static struct snd_soc_card bytcht_da7213_card = {
	210	.name = "bytcht-da7213",
	211	.owner = THIS_MODULE,
	212	.dai_link = dailink,
	213	.num_links = ARRAY_SIZE(dailink),
	214	.controls = controls,
	215	.num_controls = ARRAY_SIZE(controls),
	216	.dapm_widgets = dapm_widgets,
	217	.num_dapm_widgets = ARRAY_SIZE(dapm_widgets),
	218	.dapm_routes = audio_map,
	219	.num_dapm_routes = ARRAY_SIZE(audio_map),
	220	};
	221
2be2d579	222	static char codec_name[SND_ACPI_I2C_ID_LEN];
82cf89de PLB	223
	224	static int bytcht_da7213_probe(struct platform_device *pdev)
	225	{
82cf89de	226	struct snd_soc_card *card;
7feb2f78	227	struct snd_soc_acpi_mach *mach;
82cf89de PLB	228	const char *i2c_name = NULL;
82cf89de PLB	229	int dai_index = 0;
22a317a0 PLB	230	int ret_val = 0;
22a317a0 PLB	231	int i;
82cf89de PLB	232
	233	mach = (&pdev->dev)->platform_data;
	234	card = &bytcht_da7213_card;
	235	card->dev = &pdev->dev;
	236
	237	/* fix index of codec dai */
82cf89de PLB	238	for (i = 0; i < ARRAY_SIZE(dailink); i++) {
	239	if (!strcmp(dailink[i].codec_name, "i2c-DLGS7213:00")) {
	240	dai_index = i;
	241	break;
	242	}
	243	}
	244
	245	/* fixup codec name based on HID */
3a147959	246	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
22a317a0	247	if (i2c_name) {
82cf89de PLB	248	snprintf(codec_name, sizeof(codec_name),
	249	"%s%s", "i2c-", i2c_name);
	250	dailink[dai_index].codec_name = codec_name;
	251	}
	252
	253	ret_val = devm_snd_soc_register_card(&pdev->dev, card);
	254	if (ret_val) {
	255	dev_err(&pdev->dev,
	256	"snd_soc_register_card failed %d\n", ret_val);
	257	return ret_val;
	258	}
	259	platform_set_drvdata(pdev, card);
	260	return ret_val;
	261	}
	262
	263	static struct platform_driver bytcht_da7213_driver = {
	264	.driver = {
	265	.name = "bytcht_da7213",
	266	},
	267	.probe = bytcht_da7213_probe,
	268	};
	269	module_platform_driver(bytcht_da7213_driver);
	270
	271	MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail+DA7213 Machine driver");
	272	MODULE_AUTHOR("Pierre-Louis Bossart");
	273	MODULE_LICENSE("GPL v2");
	274	MODULE_ALIAS("platform:bytcht_da7213");