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ubuntu-linux-kernel/sound/soc/intel/boards/bytcr_rt5640.c

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2024-04-01 15:06:58 +00:00
/*
* 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/moduleparam.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/dmi.h>
#include <linux/slab.h>
#include <asm/cpu_device_id.h>
#include <asm/platform_sst_audio.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <sound/soc-acpi.h>
#include "../../codecs/rt5640.h"
#include "../atom/sst-atom-controls.h"
#include "../common/sst-dsp.h"
enum {
BYT_RT5640_DMIC1_MAP,
BYT_RT5640_DMIC2_MAP,
BYT_RT5640_IN1_MAP,
BYT_RT5640_IN3_MAP,
};
#define BYT_RT5640_MAP(quirk) ((quirk) & GENMASK(7, 0))
#define BYT_RT5640_DMIC_EN BIT(16)
#define BYT_RT5640_MONO_SPEAKER BIT(17)
#define BYT_RT5640_DIFF_MIC BIT(18) /* defaut is single-ended */
#define BYT_RT5640_SSP2_AIF2 BIT(19) /* default is using AIF1 */
#define BYT_RT5640_SSP0_AIF1 BIT(20)
#define BYT_RT5640_SSP0_AIF2 BIT(21)
#define BYT_RT5640_MCLK_EN BIT(22)
#define BYT_RT5640_MCLK_25MHZ BIT(23)
struct byt_rt5640_private {
struct clk *mclk;
};
static bool is_bytcr;
static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN;
static unsigned int quirk_override;
module_param_named(quirk, quirk_override, uint, 0444);
MODULE_PARM_DESC(quirk, "Board-specific quirk override");
static void log_quirks(struct device *dev)
{
int map;
bool has_dmic = false;
bool has_mclk = false;
bool has_ssp0 = false;
bool has_ssp0_aif1 = false;
bool has_ssp0_aif2 = false;
bool has_ssp2_aif2 = false;
map = BYT_RT5640_MAP(byt_rt5640_quirk);
switch (map) {
case BYT_RT5640_DMIC1_MAP:
dev_info(dev, "quirk DMIC1_MAP enabled\n");
has_dmic = true;
break;
case BYT_RT5640_DMIC2_MAP:
dev_info(dev, "quirk DMIC2_MAP enabled\n");
has_dmic = true;
break;
case BYT_RT5640_IN1_MAP:
dev_info(dev, "quirk IN1_MAP enabled\n");
break;
case BYT_RT5640_IN3_MAP:
dev_info(dev, "quirk IN3_MAP enabled\n");
break;
default:
dev_err(dev, "quirk map 0x%x is not supported, microphone input will not work\n", map);
break;
}
if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
if (has_dmic)
dev_info(dev, "quirk DMIC enabled\n");
else
dev_err(dev, "quirk DMIC enabled but no DMIC input set, will be ignored\n");
}
if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER)
dev_info(dev, "quirk MONO_SPEAKER enabled\n");
if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
if (!has_dmic)
dev_info(dev, "quirk DIFF_MIC enabled\n");
else
dev_info(dev, "quirk DIFF_MIC enabled but DMIC input selected, will be ignored\n");
}
if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
dev_info(dev, "quirk SSP0_AIF1 enabled\n");
has_ssp0 = true;
has_ssp0_aif1 = true;
}
if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
dev_info(dev, "quirk SSP0_AIF2 enabled\n");
has_ssp0 = true;
has_ssp0_aif2 = true;
}
if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
dev_info(dev, "quirk SSP2_AIF2 enabled\n");
has_ssp2_aif2 = true;
}
if (is_bytcr && !has_ssp0)
dev_err(dev, "Invalid routing, bytcr detected but no SSP0-based quirk, audio cannot work with SSP2 on bytcr\n");
if (has_ssp0_aif1 && has_ssp0_aif2)
dev_err(dev, "Invalid routing, SSP0 cannot be connected to both AIF1 and AIF2\n");
if (has_ssp0 && has_ssp2_aif2)
dev_err(dev, "Invalid routing, cannot have both SSP0 and SSP2 connected to codec\n");
if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
dev_info(dev, "quirk MCLK_EN enabled\n");
has_mclk = true;
}
if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
if (has_mclk)
dev_info(dev, "quirk MCLK_25MHZ enabled\n");
else
dev_err(dev, "quirk MCLK_25MHZ enabled but quirk MCLK not selected, will be ignored\n");
}
}
#define BYT_CODEC_DAI1 "rt5640-aif1"
#define BYT_CODEC_DAI2 "rt5640-aif2"
static int platform_clock_control(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
struct snd_soc_dapm_context *dapm = w->dapm;
struct snd_soc_card *card = dapm->card;
struct snd_soc_dai *codec_dai;
struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
int ret;
codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI1);
if (!codec_dai)
codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI2);
if (!codec_dai) {
dev_err(card->dev,
"Codec dai not found; Unable to set platform clock\n");
return -EIO;
}
if (SND_SOC_DAPM_EVENT_ON(event)) {
if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
ret = clk_prepare_enable(priv->mclk);
if (ret < 0) {
dev_err(card->dev,
"could not configure MCLK state\n");
return ret;
}
}
ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
48000 * 512,
SND_SOC_CLOCK_IN);
} else {
/*
* Set codec clock source to internal clock before
* turning off the platform clock. Codec needs clock
* for Jack detection and button press
*/
ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
48000 * 512,
SND_SOC_CLOCK_IN);
if (!ret) {
if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
clk_disable_unprepare(priv->mclk);
}
}
if (ret < 0) {
dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
return ret;
}
return 0;
}
static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Internal Mic", NULL),
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
platform_clock_control, SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_POST_PMD),
};
static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
{"Headphone", NULL, "Platform Clock"},
{"Headset Mic", NULL, "Platform Clock"},
{"Internal Mic", NULL, "Platform Clock"},
{"Speaker", NULL, "Platform Clock"},
{"Headset Mic", NULL, "MICBIAS1"},
{"IN2P", NULL, "Headset Mic"},
{"Headphone", NULL, "HPOL"},
{"Headphone", NULL, "HPOR"},
};
static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
{"DMIC1", NULL, "Internal Mic"},
};
static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
{"DMIC2", NULL, "Internal Mic"},
};
static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
{"Internal Mic", NULL, "MICBIAS1"},
{"IN1P", NULL, "Internal Mic"},
};
static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = {
{"Internal Mic", NULL, "MICBIAS1"},
{"IN3P", NULL, "Internal Mic"},
};
static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
{"ssp2 Tx", NULL, "codec_out0"},
{"ssp2 Tx", NULL, "codec_out1"},
{"codec_in0", NULL, "ssp2 Rx"},
{"codec_in1", NULL, "ssp2 Rx"},
{"AIF1 Playback", NULL, "ssp2 Tx"},
{"ssp2 Rx", NULL, "AIF1 Capture"},
};
static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
{"ssp2 Tx", NULL, "codec_out0"},
{"ssp2 Tx", NULL, "codec_out1"},
{"codec_in0", NULL, "ssp2 Rx"},
{"codec_in1", NULL, "ssp2 Rx"},
{"AIF2 Playback", NULL, "ssp2 Tx"},
{"ssp2 Rx", NULL, "AIF2 Capture"},
};
static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
{"ssp0 Tx", NULL, "modem_out"},
{"modem_in", NULL, "ssp0 Rx"},
{"AIF1 Playback", NULL, "ssp0 Tx"},
{"ssp0 Rx", NULL, "AIF1 Capture"},
};
static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
{"ssp0 Tx", NULL, "modem_out"},
{"modem_in", NULL, "ssp0 Rx"},
{"AIF2 Playback", NULL, "ssp0 Tx"},
{"ssp0 Rx", NULL, "AIF2 Capture"},
};
static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
{"Speaker", NULL, "SPOLP"},
{"Speaker", NULL, "SPOLN"},
{"Speaker", NULL, "SPORP"},
{"Speaker", NULL, "SPORN"},
};
static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
{"Speaker", NULL, "SPOLP"},
{"Speaker", NULL, "SPOLN"},
};
static const struct snd_kcontrol_new byt_rt5640_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Internal Mic"),
SOC_DAPM_PIN_SWITCH("Speaker"),
};
static int byt_rt5640_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, 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;
}
if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) {
/* use bitclock as PLL input */
if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
(byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
/* 2x16 bit slots on SSP0 */
ret = snd_soc_dai_set_pll(codec_dai, 0,
RT5640_PLL1_S_BCLK1,
params_rate(params) * 32,
params_rate(params) * 512);
} else {
/* 2x15 bit slots on SSP2 */
ret = snd_soc_dai_set_pll(codec_dai, 0,
RT5640_PLL1_S_BCLK1,
params_rate(params) * 50,
params_rate(params) * 512);
}
} else {
if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
ret = snd_soc_dai_set_pll(codec_dai, 0,
RT5640_PLL1_S_MCLK,
25000000,
params_rate(params) * 512);
} else {
ret = snd_soc_dai_set_pll(codec_dai, 0,
RT5640_PLL1_S_MCLK,
19200000,
params_rate(params) * 512);
}
}
if (ret < 0) {
dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
return ret;
}
return 0;
}
static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
{
byt_rt5640_quirk = (unsigned long)id->driver_data;
return 1;
}
static const struct dmi_system_id byt_rt5640_quirk_table[] = {
{
.callback = byt_rt5640_quirk_cb,
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
},
.driver_data = (void *)(BYT_RT5640_IN1_MAP |
BYT_RT5640_MCLK_EN),
},
{
.callback = byt_rt5640_quirk_cb,
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
},
.driver_data = (void *)(BYT_RT5640_IN1_MAP |
BYT_RT5640_MONO_SPEAKER |
BYT_RT5640_DIFF_MIC |
BYT_RT5640_SSP0_AIF2 |
BYT_RT5640_MCLK_EN),
},
{
.callback = byt_rt5640_quirk_cb,
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "DellInc."),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
},
.driver_data = (void *)(BYT_RT5640_DMIC2_MAP |
BYT_RT5640_DMIC_EN |
BYT_RT5640_MCLK_EN),
},
{
.callback = byt_rt5640_quirk_cb,
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
},
.driver_data = (void *)(BYT_RT5640_IN1_MAP |
BYT_RT5640_MCLK_EN),
},
{
.callback = byt_rt5640_quirk_cb,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
},
.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
BYT_RT5640_DMIC_EN),
},
{
.callback = byt_rt5640_quirk_cb,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
},
.driver_data = (void *)(BYT_RT5640_IN3_MAP |
BYT_RT5640_MCLK_EN |
BYT_RT5640_SSP0_AIF1),
},
{
.callback = byt_rt5640_quirk_cb,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
},
.driver_data = (void *)(BYT_RT5640_IN1_MAP |
BYT_RT5640_MCLK_EN |
BYT_RT5640_SSP0_AIF1),
},
{
.callback = byt_rt5640_quirk_cb,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
},
.driver_data = (void *)(BYT_RT5640_IN3_MAP |
BYT_RT5640_MCLK_EN |
BYT_RT5640_SSP0_AIF1),
},
{}
};
static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
{
struct snd_soc_card *card = runtime->card;
struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
struct snd_soc_codec *codec = runtime->codec;
const struct snd_soc_dapm_route *custom_map;
int num_routes;
int ret;
card->dapm.idle_bias_off = true;
rt5640_sel_asrc_clk_src(codec,
RT5640_DA_STEREO_FILTER |
RT5640_DA_MONO_L_FILTER |
RT5640_DA_MONO_R_FILTER |
RT5640_AD_STEREO_FILTER |
RT5640_AD_MONO_L_FILTER |
RT5640_AD_MONO_R_FILTER,
RT5640_CLK_SEL_ASRC);
ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
ARRAY_SIZE(byt_rt5640_controls));
if (ret) {
dev_err(card->dev, "unable to add card controls\n");
return ret;
}
switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
case BYT_RT5640_IN1_MAP:
custom_map = byt_rt5640_intmic_in1_map;
num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
break;
case BYT_RT5640_IN3_MAP:
custom_map = byt_rt5640_intmic_in3_map;
num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map);
break;
case BYT_RT5640_DMIC2_MAP:
custom_map = byt_rt5640_intmic_dmic2_map;
num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
break;
default:
custom_map = byt_rt5640_intmic_dmic1_map;
num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
}
ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
if (ret)
return ret;
if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
ret = snd_soc_dapm_add_routes(&card->dapm,
byt_rt5640_ssp2_aif2_map,
ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
} else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
ret = snd_soc_dapm_add_routes(&card->dapm,
byt_rt5640_ssp0_aif1_map,
ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
} else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
ret = snd_soc_dapm_add_routes(&card->dapm,
byt_rt5640_ssp0_aif2_map,
ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
} else {
ret = snd_soc_dapm_add_routes(&card->dapm,
byt_rt5640_ssp2_aif1_map,
ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
}
if (ret)
return ret;
if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
ret = snd_soc_dapm_add_routes(&card->dapm,
byt_rt5640_mono_spk_map,
ARRAY_SIZE(byt_rt5640_mono_spk_map));
} else {
ret = snd_soc_dapm_add_routes(&card->dapm,
byt_rt5640_stereo_spk_map,
ARRAY_SIZE(byt_rt5640_stereo_spk_map));
}
if (ret)
return ret;
if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
snd_soc_update_bits(codec, RT5640_IN1_IN2, RT5640_IN_DF1,
RT5640_IN_DF1);
}
if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
ret = rt5640_dmic_enable(codec, 0, 0);
if (ret)
return ret;
}
snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
/*
* The firmware might enable the clock at
* boot (this information may or may not
* be reflected in the enable clock register).
* To change the rate we must disable the clock
* first to cover these cases. Due to common
* clock framework restrictions that do not allow
* to disable a clock that has not been enabled,
* we need to enable the clock first.
*/
ret = clk_prepare_enable(priv->mclk);
if (!ret)
clk_disable_unprepare(priv->mclk);
if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
ret = clk_set_rate(priv->mclk, 25000000);
else
ret = clk_set_rate(priv->mclk, 19200000);
if (ret)
dev_err(card->dev, "unable to set MCLK rate\n");
}
return ret;
}
static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
.formats = SNDRV_PCM_FMTBIT_S24_LE,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
};
static int byt_rt5640_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);
int ret;
/* The DSP will covert the FE rate to 48k, stereo */
rate->min = rate->max = 48000;
channels->min = channels->max = 2;
if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
(byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
/* set SSP0 to 16-bit */
params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
/*
* Default mode for SSP configuration is TDM 4 slot, override config
* with explicit setting to I2S 2ch 16-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, 16);
if (ret < 0) {
dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
return ret;
}
} else {
/* 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 byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
{
return snd_pcm_hw_constraint_single(substream->runtime,
SNDRV_PCM_HW_PARAM_RATE, 48000);
}
static const struct snd_soc_ops byt_rt5640_aif1_ops = {
.startup = byt_rt5640_aif1_startup,
};
static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
.hw_params = byt_rt5640_aif1_hw_params,
};
static struct snd_soc_dai_link byt_rt5640_dais[] = {
[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",
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &byt_rt5640_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 = &byt_rt5640_aif1_ops,
},
/* back ends */
{
.name = "SSP2-Codec",
.id = 0,
.cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
.platform_name = "sst-mfld-platform",
.no_pcm = 1,
.codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
.codec_name = "i2c-10EC5640:00", /* overwritten with HID */
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS,
.be_hw_params_fixup = byt_rt5640_codec_fixup,
.ignore_suspend = 1,
.nonatomic = true,
.dpcm_playback = 1,
.dpcm_capture = 1,
.init = byt_rt5640_init,
.ops = &byt_rt5640_be_ssp2_ops,
},
};
/* SoC card */
static struct snd_soc_card byt_rt5640_card = {
.name = "bytcr-rt5640",
.owner = THIS_MODULE,
.dai_link = byt_rt5640_dais,
.num_links = ARRAY_SIZE(byt_rt5640_dais),
.dapm_widgets = byt_rt5640_widgets,
.num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
.dapm_routes = byt_rt5640_audio_map,
.num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
.fully_routed = true,
};
static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
static char byt_rt5640_codec_aif_name[12]; /* = "rt5640-aif[1|2]" */
static char byt_rt5640_cpu_dai_name[10]; /* = "ssp[0|2]-port" */
static bool is_valleyview(void)
{
static const struct x86_cpu_id cpu_ids[] = {
{ X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
{}
};
if (!x86_match_cpu(cpu_ids))
return false;
return true;
}
struct acpi_chan_package { /* ACPICA seems to require 64 bit integers */
u64 aif_value; /* 1: AIF1, 2: AIF2 */
u64 mclock_value; /* usually 25MHz (0x17d7940), ignored */
};
static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
{
struct byt_rt5640_private *priv;
struct snd_soc_acpi_mach *mach;
const char *i2c_name = NULL;
int ret_val = 0;
int dai_index = 0;
int i;
is_bytcr = false;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
if (!priv)
return -ENOMEM;
/* register the soc card */
byt_rt5640_card.dev = &pdev->dev;
mach = byt_rt5640_card.dev->platform_data;
snd_soc_card_set_drvdata(&byt_rt5640_card, priv);
/* fix index of codec dai */
for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
dai_index = i;
break;
}
}
/* fixup codec name based on HID */
i2c_name = snd_soc_acpi_find_name_from_hid(mach->id);
if (i2c_name) {
snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
"%s%s", "i2c-", i2c_name);
byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
}
/*
* swap SSP0 if bytcr is detected
* (will be overridden if DMI quirk is detected)
*/
if (is_valleyview()) {
struct sst_platform_info *p_info = mach->pdata;
const struct sst_res_info *res_info = p_info->res_info;
if (res_info->acpi_ipc_irq_index == 0)
is_bytcr = true;
}
if (is_bytcr) {
/*
* Baytrail CR platforms may have CHAN package in BIOS, try
* to find relevant routing quirk based as done on Windows
* platforms. We have to read the information directly from the
* BIOS, at this stage the card is not created and the links
* with the codec driver/pdata are non-existent
*/
struct acpi_chan_package chan_package;
/* format specified: 2 64-bit integers */
struct acpi_buffer format = {sizeof("NN"), "NN"};
struct acpi_buffer state = {0, NULL};
struct snd_soc_acpi_package_context pkg_ctx;
bool pkg_found = false;
state.length = sizeof(chan_package);
state.pointer = &chan_package;
pkg_ctx.name = "CHAN";
pkg_ctx.length = 2;
pkg_ctx.format = &format;
pkg_ctx.state = &state;
pkg_ctx.data_valid = false;
pkg_found = snd_soc_acpi_find_package_from_hid(mach->id,
&pkg_ctx);
if (pkg_found) {
if (chan_package.aif_value == 1) {
dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1;
} else if (chan_package.aif_value == 2) {
dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
} else {
dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
pkg_found = false;
}
}
if (!pkg_found) {
/* no BIOS indications, assume SSP0-AIF2 connection */
byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
}
/* change defaults for Baytrail-CR capture */
byt_rt5640_quirk |= BYT_RT5640_IN1_MAP;
byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC;
} else {
byt_rt5640_quirk |= (BYT_RT5640_DMIC1_MAP |
BYT_RT5640_DMIC_EN);
}
/* check quirks before creating card */
dmi_check_system(byt_rt5640_quirk_table);
if (quirk_override) {
dev_info(&pdev->dev, "Overriding quirk 0x%x => 0x%x\n",
(unsigned int)byt_rt5640_quirk, quirk_override);
byt_rt5640_quirk = quirk_override;
}
log_quirks(&pdev->dev);
if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
(byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
/* fixup codec aif name */
snprintf(byt_rt5640_codec_aif_name,
sizeof(byt_rt5640_codec_aif_name),
"%s", "rt5640-aif2");
byt_rt5640_dais[dai_index].codec_dai_name =
byt_rt5640_codec_aif_name;
}
if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
(byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
/* fixup cpu dai name name */
snprintf(byt_rt5640_cpu_dai_name,
sizeof(byt_rt5640_cpu_dai_name),
"%s", "ssp0-port");
byt_rt5640_dais[dai_index].cpu_dai_name =
byt_rt5640_cpu_dai_name;
}
if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
if (IS_ERR(priv->mclk)) {
ret_val = PTR_ERR(priv->mclk);
dev_err(&pdev->dev,
"Failed to get MCLK from pmc_plt_clk_3: %d\n",
ret_val);
/*
* Fall back to bit clock usage for -ENOENT (clock not
* available likely due to missing dependencies), bail
* for all other errors, including -EPROBE_DEFER
*/
if (ret_val != -ENOENT)
return ret_val;
byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN;
}
}
ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
if (ret_val) {
dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
ret_val);
return ret_val;
}
platform_set_drvdata(pdev, &byt_rt5640_card);
return ret_val;
}
static struct platform_driver snd_byt_rt5640_mc_driver = {
.driver = {
.name = "bytcr_rt5640",
},
.probe = snd_byt_rt5640_mc_probe,
};
module_platform_driver(snd_byt_rt5640_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:bytcr_rt5640");