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/*
* 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(¶ms->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;
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 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;
}
return 0;
}
static struct snd_soc_dai_link haswell_rt5640_dais[] = {
/* Front End DAI links */
{
.name = "System",
.stream_name = "System Playback/Capture",
.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,
.dpcm_capture = 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,
},
/* 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",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.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 devm_snd_soc_register_card(&pdev->dev, &haswell_rt5640);
}
static struct platform_driver haswell_audio = {
.probe = haswell_audio_probe,
.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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