[deliverable/linux.git] / sound / soc / intel / bytcr_dpcm_rt5640.c

/*
 *  byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform
 *
 *  Copyright (C) 2014 Intel Corp
 *  Author: Subhransu S. Prusty <subhransu.s.prusty@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/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "../codecs/rt5640.h"
#include "sst-atom-controls.h"

static const struct snd_soc_dapm_widget byt_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Int Mic", NULL),
	SND_SOC_DAPM_SPK("Ext Spk", NULL),
};

static const struct snd_soc_dapm_route byt_audio_map[] = {
	{"IN2P", NULL, "Headset Mic"},
	{"IN2N", NULL, "Headset Mic"},
	{"Headset Mic", NULL, "MICBIAS1"},
	{"IN1P", NULL, "MICBIAS1"},
	{"LDO2", NULL, "Int Mic"},
	{"Headphone", NULL, "HPOL"},
	{"Headphone", NULL, "HPOR"},
	{"Ext Spk", NULL, "SPOLP"},
	{"Ext Spk", NULL, "SPOLN"},
	{"Ext Spk", NULL, "SPORP"},
	{"Ext Spk", NULL, "SPORN"},

	{"AIF1 Playback", NULL, "ssp2 Tx"},
	{"ssp2 Tx", NULL, "codec_out0"},
	{"ssp2 Tx", NULL, "codec_out1"},
	{"codec_in0", NULL, "ssp2 Rx"},
	{"codec_in1", NULL, "ssp2 Rx"},
	{"ssp2 Rx", NULL, "AIF1 Capture"},
};

static const struct snd_kcontrol_new byt_mc_controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphone"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Int Mic"),
	SOC_DAPM_PIN_SWITCH("Ext Spk"),
};

static int byt_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;

	snd_soc_dai_set_bclk_ratio(codec_dai, 50);

	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
				     params_rate(params) * 512,
				     SND_SOC_CLOCK_IN);
	if (ret < 0) {
		dev_err(rtd->dev, "can't set codec clock %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
				  params_rate(params) * 50,
				  params_rate(params) * 512);
	if (ret < 0) {
		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
		return ret;
	}

	return 0;
}

static const struct snd_soc_pcm_stream byt_dai_params = {
	.formats = SNDRV_PCM_FMTBIT_S24_LE,
	.rate_min = 48000,
	.rate_max = 48000,
	.channels_min = 2,
	.channels_max = 2,
};

static int byt_codec_fixup(struct snd_soc_pcm_runtime *rtd,
			    struct snd_pcm_hw_params *params)
{
	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 covert the FE rate to 48k, stereo, 24bits */
	rate->min = rate->max = 48000;
	channels->min = channels->max = 2;

	/* set SSP2 to 24-bit */
	snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
				    SNDRV_PCM_HW_PARAM_FIRST_MASK],
				    SNDRV_PCM_FORMAT_S24_LE);
	return 0;
}

static unsigned int rates_48000[] = {
	48000,
};

static struct snd_pcm_hw_constraint_list constraints_48000 = {
	.count = ARRAY_SIZE(rates_48000),
	.list  = rates_48000,
};

static int byt_aif1_startup(struct snd_pcm_substream *substream)
{
	return snd_pcm_hw_constraint_list(substream->runtime, 0,
			SNDRV_PCM_HW_PARAM_RATE,
			&constraints_48000);
}

static struct snd_soc_ops byt_aif1_ops = {
	.startup = byt_aif1_startup,
};

static struct snd_soc_ops byt_be_ssp2_ops = {
	.hw_params = byt_aif1_hw_params,
};

static struct snd_soc_dai_link byt_dailink[] = {
	[MERR_DPCM_AUDIO] = {
		.name = "Baytrail Audio Port",
		.stream_name = "Baytrail Audio",
		.cpu_dai_name = "media-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
		.ignore_suspend = 1,
		.dynamic = 1,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &byt_aif1_ops,
	},
	[MERR_DPCM_COMPR] = {
		.name = "Baytrail Compressed Port",
		.stream_name = "Baytrail Compress",
		.cpu_dai_name = "compress-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
	},
		/* back ends */
	{
		.name = "SSP2-Codec",
		.be_id = 1,
		.cpu_dai_name = "ssp2-port",
		.platform_name = "sst-mfld-platform",
		.no_pcm = 1,
		.codec_dai_name = "rt5640-aif1",
		.codec_name = "i2c-10EC5640:00",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
						| SND_SOC_DAIFMT_CBS_CFS,
		.be_hw_params_fixup = byt_codec_fixup,
		.ignore_suspend = 1,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &byt_be_ssp2_ops,
	},
};

/* SoC card */
static struct snd_soc_card snd_soc_card_byt = {
	.name = "baytrailcraudio",
	.dai_link = byt_dailink,
	.num_links = ARRAY_SIZE(byt_dailink),
	.dapm_widgets = byt_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(byt_dapm_widgets),
	.dapm_routes = byt_audio_map,
	.num_dapm_routes = ARRAY_SIZE(byt_audio_map),
	.controls = byt_mc_controls,
	.num_controls = ARRAY_SIZE(byt_mc_controls),
};

static int snd_byt_mc_probe(struct platform_device *pdev)
{
	int ret_val = 0;

	/* register the soc card */
	snd_soc_card_byt.dev = &pdev->dev;

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

static struct platform_driver snd_byt_mc_driver = {
	.driver = {
		.owner = THIS_MODULE,
		.name = "bytt100_rt5640",
		.pm = &snd_soc_pm_ops,
	},
	.probe = snd_byt_mc_probe,
};

module_platform_driver(snd_byt_mc_driver);

MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:bytrt5640-audio");
Commit	Line	Data
996cc849 SP	1	/*
	2	* byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform
	3	*
	4	* Copyright (C) 2014 Intel Corp
	5	* Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
	6	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; version 2 of the License.
	11	*
	12	* This program is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	18	*/
	19
	20	#include <linux/init.h>
	21	#include <linux/module.h>
	22	#include <linux/platform_device.h>
	23	#include <linux/device.h>
	24	#include <linux/slab.h>
	25	#include <linux/input.h>
	26	#include <sound/pcm.h>
	27	#include <sound/pcm_params.h>
	28	#include <sound/soc.h>
	29	#include "../codecs/rt5640.h"
	30	#include "sst-atom-controls.h"
	31
	32	static const struct snd_soc_dapm_widget byt_dapm_widgets[] = {
	33	SND_SOC_DAPM_HP("Headphone", NULL),
	34	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	35	SND_SOC_DAPM_MIC("Int Mic", NULL),
	36	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	37	};
	38
	39	static const struct snd_soc_dapm_route byt_audio_map[] = {
	40	{"IN2P", NULL, "Headset Mic"},
	41	{"IN2N", NULL, "Headset Mic"},
	42	{"Headset Mic", NULL, "MICBIAS1"},
	43	{"IN1P", NULL, "MICBIAS1"},
	44	{"LDO2", NULL, "Int Mic"},
	45	{"Headphone", NULL, "HPOL"},
	46	{"Headphone", NULL, "HPOR"},
	47	{"Ext Spk", NULL, "SPOLP"},
	48	{"Ext Spk", NULL, "SPOLN"},
	49	{"Ext Spk", NULL, "SPORP"},
	50	{"Ext Spk", NULL, "SPORN"},
	51
	52	{"AIF1 Playback", NULL, "ssp2 Tx"},
	53	{"ssp2 Tx", NULL, "codec_out0"},
	54	{"ssp2 Tx", NULL, "codec_out1"},
	55	{"codec_in0", NULL, "ssp2 Rx"},
	56	{"codec_in1", NULL, "ssp2 Rx"},
	57	{"ssp2 Rx", NULL, "AIF1 Capture"},
	58	};
	59
	60	static const struct snd_kcontrol_new byt_mc_controls[] = {
	61	SOC_DAPM_PIN_SWITCH("Headphone"),
	62	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	63	SOC_DAPM_PIN_SWITCH("Int Mic"),
	64	SOC_DAPM_PIN_SWITCH("Ext Spk"),
65	};
66
67	static int byt_aif1_hw_params(struct snd_pcm_substream *substream,
68	struct snd_pcm_hw_params *params)
69	{
70	struct snd_soc_pcm_runtime *rtd = substream->private_data;
71	struct snd_soc_dai *codec_dai = rtd->codec_dai;
72	int ret;
73
74	snd_soc_dai_set_bclk_ratio(codec_dai, 50);
75
76	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
77	params_rate(params) * 512,
78	SND_SOC_CLOCK_IN);
79	if (ret < 0) {
80	dev_err(rtd->dev, "can't set codec clock %d\n", ret);
81	return ret;
82	}
83
84	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
85	params_rate(params) * 50,
86	params_rate(params) * 512);
87	if (ret < 0) {
88	dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
89	return ret;
90	}
91
92	return 0;
93	}
94
95	static const struct snd_soc_pcm_stream byt_dai_params = {
96	.formats = SNDRV_PCM_FMTBIT_S24_LE,
97	.rate_min = 48000,
98	.rate_max = 48000,
99	.channels_min = 2,
100	.channels_max = 2,
101	};
102
103	static int byt_codec_fixup(struct snd_soc_pcm_runtime *rtd,
104	struct snd_pcm_hw_params *params)
105	{
106	struct snd_interval *rate = hw_param_interval(params,
107	SNDRV_PCM_HW_PARAM_RATE);
108	struct snd_interval *channels = hw_param_interval(params,
109	SNDRV_PCM_HW_PARAM_CHANNELS);
110
111	/* The DSP will covert the FE rate to 48k, stereo, 24bits */
112	rate->min = rate->max = 48000;
113	channels->min = channels->max = 2;
114
115	/* set SSP2 to 24-bit */
116	snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
117	SNDRV_PCM_HW_PARAM_FIRST_MASK],
118	SNDRV_PCM_FORMAT_S24_LE);
119	return 0;
120	}
121
122	static unsigned int rates_48000[] = {
123	48000,
124	};
125
126	static struct snd_pcm_hw_constraint_list constraints_48000 = {
127	.count = ARRAY_SIZE(rates_48000),
128	.list = rates_48000,
129	};
130
131	static int byt_aif1_startup(struct snd_pcm_substream *substream)
132	{
133	return snd_pcm_hw_constraint_list(substream->runtime, 0,
134	SNDRV_PCM_HW_PARAM_RATE,
135	&constraints_48000);
136	}
137
138	static struct snd_soc_ops byt_aif1_ops = {
139	.startup = byt_aif1_startup,
140	};
141
142	static struct snd_soc_ops byt_be_ssp2_ops = {
143	.hw_params = byt_aif1_hw_params,
144	};
145
146	static struct snd_soc_dai_link byt_dailink[] = {
147	[MERR_DPCM_AUDIO] = {
148	.name = "Baytrail Audio Port",
149	.stream_name = "Baytrail Audio",
150	.cpu_dai_name = "media-cpu-dai",
151	.codec_dai_name = "snd-soc-dummy-dai",
152	.codec_name = "snd-soc-dummy",
153	.platform_name = "sst-mfld-platform",
154	.ignore_suspend = 1,
155	.dynamic = 1,
156	.dpcm_playback = 1,
157	.dpcm_capture = 1,
158	.ops = &byt_aif1_ops,
159	},
160	[MERR_DPCM_COMPR] = {
161	.name = "Baytrail Compressed Port",
162	.stream_name = "Baytrail Compress",
163	.cpu_dai_name = "compress-cpu-dai",
164	.codec_dai_name = "snd-soc-dummy-dai",
165	.codec_name = "snd-soc-dummy",
166	.platform_name = "sst-mfld-platform",
167	},
168	/* back ends */
169	{
170	.name = "SSP2-Codec",
171	.be_id = 1,
172	.cpu_dai_name = "ssp2-port",
173	.platform_name = "sst-mfld-platform",
174	.no_pcm = 1,
175	.codec_dai_name = "rt5640-aif1",
176	.codec_name = "i2c-10EC5640:00",
177	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
178	\| SND_SOC_DAIFMT_CBS_CFS,
179	.be_hw_params_fixup = byt_codec_fixup,
180	.ignore_suspend = 1,
181	.dpcm_playback = 1,
182	.dpcm_capture = 1,
183	.ops = &byt_be_ssp2_ops,
184	},
185	};
186
187	/* SoC card */
188	static struct snd_soc_card snd_soc_card_byt = {
189	.name = "baytrailcraudio",
190	.dai_link = byt_dailink,
191	.num_links = ARRAY_SIZE(byt_dailink),
192	.dapm_widgets = byt_dapm_widgets,
193	.num_dapm_widgets = ARRAY_SIZE(byt_dapm_widgets),
194	.dapm_routes = byt_audio_map,
195	.num_dapm_routes = ARRAY_SIZE(byt_audio_map),
196	.controls = byt_mc_controls,
197	.num_controls = ARRAY_SIZE(byt_mc_controls),
198	};
199
200	static int snd_byt_mc_probe(struct platform_device *pdev)
201	{
202	int ret_val = 0;
203
204	/* register the soc card */
205	snd_soc_card_byt.dev = &pdev->dev;
206
207	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_byt);
208	if (ret_val) {
209	dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n", ret_val);
210	return ret_val;
211	}
212	platform_set_drvdata(pdev, &snd_soc_card_byt);
213	return ret_val;
214	}
215
216	static struct platform_driver snd_byt_mc_driver = {
217	.driver = {
218	.owner = THIS_MODULE,
219	.name = "bytt100_rt5640",
220	.pm = &snd_soc_pm_ops,
221	},
222	.probe = snd_byt_mc_probe,
223	};
224
225	module_platform_driver(snd_byt_mc_driver);
226
227	MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
228	MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
229	MODULE_LICENSE("GPL v2");
230	MODULE_ALIAS("platform:bytrt5640-audio");