Commit 90931b9e authored by Liam Girdwood's avatar Liam Girdwood Committed by Mark Brown
Browse files

ASoC: Intel: Add Haswell Machine support 



Add support for Haswell based machines with SST DSP audio.

Signed-off-by: default avatarLiam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 5e4482fc

sound/soc/intel/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -26,3 +26,14 @@ config SND_SOC_INTEL_SST_ACPI 


config SND_SOC_INTEL_HASWELL

	tristate



config SND_SOC_INTEL_HASWELL_MACH

        tristate "ASoC Audio DSP support for Intel Haswell Lynxpoint"

        depends on SND_SOC_INTEL_SST && X86_INTEL_LPSS

	select SND_SOC_INTEL_HASWELL

	select SND_SOC_RT5640

	help

          This adds support for the Lynxpoint Audio DSP on Intel(R) Haswell

	  Ultrabook platforms.

          Say Y if you have such a device

          If unsure select "N".
 
 No newline at end of file

sound/soc/intel/Makefile

+5 −0
Original line number Diff line number Diff line
@@ -16,3 +16,8 @@ snd-soc-sst-haswell-pcm-objs := \ 
	sst-haswell-ipc.o sst-haswell-pcm.o sst-haswell-dsp.o



obj-$(CONFIG_SND_SOC_INTEL_HASWELL) += snd-soc-sst-haswell-pcm.o



# Machine support

snd-soc-sst-haswell-objs := haswell.o



obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o

sound/soc/intel/haswell.c

0 → 100644
+241 −0
Original line number Diff line number Diff line 
/*

 * Intel Haswell Lynxpoint SST Audio

 *

 * Copyright (C) 2013, Intel Corporation. All rights reserved.

 *

 * 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.

 *

 */



#include <linux/module.h>

#include <linux/platform_device.h>

#include <sound/core.h>

#include <sound/pcm.h>

#include <sound/soc.h>

#include <sound/pcm_params.h>



#include "sst-dsp.h"

#include "sst-haswell-ipc.h"



#include "../codecs/rt5640.h"



/* Haswell ULT platforms have a Headphone and Mic jack */

static const struct snd_soc_dapm_widget haswell_widgets[] = {

	SND_SOC_DAPM_HP("Headphones", NULL),

	SND_SOC_DAPM_MIC("Mic", NULL),

};



static const struct snd_soc_dapm_route haswell_rt5640_map[] = {



	{"Headphones", NULL, "HPOR"},

	{"Headphones", NULL, "HPOL"},

	{"IN2P", NULL, "Mic"},



	/* CODEC BE connections */

	{"SSP0 CODEC IN", NULL, "AIF1 Capture"},

	{"AIF1 Playback", NULL, "SSP0 CODEC OUT"},

};



static int haswell_ssp0_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 ADSP will covert the FE rate to 48k, stereo */

	rate->min = rate->max = 48000;

	channels->min = channels->max = 2;



	/* set SSP0 to 16 bit */

	snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -

				    SNDRV_PCM_HW_PARAM_FIRST_MASK],

				    SNDRV_PCM_FORMAT_S16_LE);

	return 0;

}



static int haswell_rt5640_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;



	/* Set codec DAI configuration */

	ret = snd_soc_dai_set_fmt(codec_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 codec DAI configuration\n");

		return ret;

	}



	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000,

		SND_SOC_CLOCK_IN);



	if (ret < 0) {

		dev_err(rtd->dev, "can't set codec sysclk configuration\n");

		return ret;

	}



	/* set correct codec filter for DAI format and clock config */

	snd_soc_update_bits(rtd->codec, 0x83, 0xffff, 0x8000);



	return ret;

}



static struct snd_soc_ops haswell_rt5640_ops = {

	.hw_params = haswell_rt5640_hw_params,

};



static int haswell_rtd_init(struct snd_soc_pcm_runtime *rtd)

{

	struct snd_soc_codec *codec = rtd->codec;

	struct snd_soc_dapm_context *dapm = &codec->dapm;

	struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);

	struct sst_hsw *haswell = pdata->dsp;

	int ret;



	/* Set ADSP SSP port settings */

	ret = sst_hsw_device_set_config(haswell, SST_HSW_DEVICE_SSP_0,

		SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,

		SST_HSW_DEVICE_CLOCK_MASTER, 9);

	if (ret < 0) {

		dev_err(rtd->dev, "failed to set device config\n");

		return ret;

	}



	/* always connected */

	snd_soc_dapm_enable_pin(dapm, "Headphones");

	snd_soc_dapm_enable_pin(dapm, "Mic");



	return 0;

}



static struct snd_soc_dai_link haswell_rt5640_dais[] = {

	/* Front End DAI links */

	{

		.name = "System",

		.stream_name = "System Playback",

		.cpu_dai_name = "System Pin",

		.platform_name = "haswell-pcm-audio",

		.dynamic = 1,

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.init = haswell_rtd_init,

		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},

		.dpcm_playback = 1,

	},

	{

		.name = "Offload0",

		.stream_name = "Offload0 Playback",

		.cpu_dai_name = "Offload0 Pin",

		.platform_name = "haswell-pcm-audio",

		.dynamic = 1,

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},

		.dpcm_playback = 1,

	},

	{

		.name = "Offload1",

		.stream_name = "Offload1 Playback",

		.cpu_dai_name = "Offload1 Pin",

		.platform_name = "haswell-pcm-audio",

		.dynamic = 1,

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},

		.dpcm_playback = 1,

	},

	{

		.name = "Loopback",

		.stream_name = "Loopback",

		.cpu_dai_name = "Loopback Pin",

		.platform_name = "haswell-pcm-audio",

		.dynamic = 0,

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},

		.dpcm_capture = 1,

	},

	{

		.name = "Capture",

		.stream_name = "Capture",

		.cpu_dai_name = "Capture Pin",

		.platform_name = "haswell-pcm-audio",

		.dynamic = 1,

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},

		.dpcm_capture = 1,

	},



	/* Back End DAI links */

	{

		/* SSP0 - Codec */

		.name = "Codec",

		.be_id = 0,

		.cpu_dai_name = "snd-soc-dummy-dai",

		.platform_name = "snd-soc-dummy",

		.no_pcm = 1,

		.codec_name = "i2c-INT33CA:00",

		.codec_dai_name = "rt5640-aif1",

		.ignore_suspend = 1,

		.ignore_pmdown_time = 1,

		.be_hw_params_fixup = haswell_ssp0_fixup,

		.ops = &haswell_rt5640_ops,

		.dpcm_playback = 1,

		.dpcm_capture = 1,

	},

};



/* audio machine driver for Haswell Lynxpoint DSP + RT5640 */

static struct snd_soc_card haswell_rt5640 = {

	.name = "haswell-rt5640",

	.owner = THIS_MODULE,

	.dai_link = haswell_rt5640_dais,

	.num_links = ARRAY_SIZE(haswell_rt5640_dais),

	.dapm_widgets = haswell_widgets,

	.num_dapm_widgets = ARRAY_SIZE(haswell_widgets),

	.dapm_routes = haswell_rt5640_map,

	.num_dapm_routes = ARRAY_SIZE(haswell_rt5640_map),

	.fully_routed = true,

};



static int haswell_audio_probe(struct platform_device *pdev)

{

	haswell_rt5640.dev = &pdev->dev;



	return snd_soc_register_card(&haswell_rt5640);

}



static int haswell_audio_remove(struct platform_device *pdev)

{

	snd_soc_unregister_card(&haswell_rt5640);

	return 0;

}



static struct platform_driver haswell_audio = {

	.probe = haswell_audio_probe,

	.remove = haswell_audio_remove,

	.driver = {

		.name = "haswell-audio",

		.owner = THIS_MODULE,

	},

};



module_platform_driver(haswell_audio)



/* Module information */

MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");

MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");

MODULE_LICENSE("GPL v2");

MODULE_ALIAS("platform:haswell-audio");

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