493 lines
14 KiB
C
493 lines
14 KiB
C
/*
|
|
* cht-bsw-rt5645.c - ASoc Machine driver for Intel Cherryview-based platforms
|
|
* Cherrytrail and Braswell, with RT5645 codec.
|
|
*
|
|
* Copyright (C) 2015 Intel Corp
|
|
* Author: Fang, Yang A <yang.a.fang@intel.com>
|
|
* N,Harshapriya <harshapriya.n@intel.com>
|
|
* This file is modified from cht_bsw_rt5672.c
|
|
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
*
|
|
* 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/cpu_device_id.h>
|
|
#include <asm/platform_sst_audio.h>
|
|
#include <linux/clk.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/jack.h>
|
|
#include "../../codecs/rt5645.h"
|
|
#include "../atom/sst-atom-controls.h"
|
|
#include "../common/sst-acpi.h"
|
|
|
|
#define CHT_PLAT_CLK_3_HZ 19200000
|
|
#define CHT_CODEC_DAI "rt5645-aif1"
|
|
|
|
struct cht_acpi_card {
|
|
char *codec_id;
|
|
int codec_type;
|
|
struct snd_soc_card *soc_card;
|
|
};
|
|
|
|
struct cht_mc_private {
|
|
struct snd_soc_jack jack;
|
|
struct cht_acpi_card *acpi_card;
|
|
char codec_name[16];
|
|
struct clk *mclk;
|
|
};
|
|
|
|
static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd;
|
|
|
|
list_for_each_entry(rtd, &card->rtd_list, list) {
|
|
if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
|
|
strlen(CHT_CODEC_DAI)))
|
|
return rtd->codec_dai;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
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 cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
|
|
int ret;
|
|
|
|
codec_dai = cht_get_codec_dai(card);
|
|
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 (ctx->mclk) {
|
|
ret = clk_prepare_enable(ctx->mclk);
|
|
if (ret < 0) {
|
|
dev_err(card->dev,
|
|
"could not configure MCLK state");
|
|
return ret;
|
|
}
|
|
}
|
|
} else {
|
|
/* Set codec sysclk source to its internal clock because codec PLL will
|
|
* be off when idle and MCLK will also be off when codec is
|
|
* runtime suspended. Codec needs clock for jack detection and button
|
|
* press. MCLK is turned off with clock framework or ACPI.
|
|
*/
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK,
|
|
48000 * 512, SND_SOC_CLOCK_IN);
|
|
if (ret < 0) {
|
|
dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
if (ctx->mclk)
|
|
clk_disable_unprepare(ctx->mclk);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_dapm_widget cht_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_MIC("Int Analog Mic", NULL),
|
|
SND_SOC_DAPM_SPK("Ext Spk", 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 cht_rt5645_audio_map[] = {
|
|
{"IN1P", NULL, "Headset Mic"},
|
|
{"IN1N", NULL, "Headset Mic"},
|
|
{"DMIC L1", NULL, "Int Mic"},
|
|
{"DMIC R1", NULL, "Int Mic"},
|
|
{"IN2P", NULL, "Int Analog Mic"},
|
|
{"IN2N", NULL, "Int Analog Mic"},
|
|
{"Headphone", NULL, "HPOL"},
|
|
{"Headphone", NULL, "HPOR"},
|
|
{"Ext Spk", NULL, "SPOL"},
|
|
{"Ext Spk", NULL, "SPOR"},
|
|
{"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"},
|
|
{"Headphone", NULL, "Platform Clock"},
|
|
{"Headset Mic", NULL, "Platform Clock"},
|
|
{"Int Mic", NULL, "Platform Clock"},
|
|
{"Int Analog Mic", NULL, "Platform Clock"},
|
|
{"Int Analog Mic", NULL, "micbias1"},
|
|
{"Int Analog Mic", NULL, "micbias2"},
|
|
{"Ext Spk", NULL, "Platform Clock"},
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route cht_rt5650_audio_map[] = {
|
|
{"IN1P", NULL, "Headset Mic"},
|
|
{"IN1N", NULL, "Headset Mic"},
|
|
{"DMIC L2", NULL, "Int Mic"},
|
|
{"DMIC R2", NULL, "Int Mic"},
|
|
{"Headphone", NULL, "HPOL"},
|
|
{"Headphone", NULL, "HPOR"},
|
|
{"Ext Spk", NULL, "SPOL"},
|
|
{"Ext Spk", NULL, "SPOR"},
|
|
{"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"},
|
|
{"Headphone", NULL, "Platform Clock"},
|
|
{"Headset Mic", NULL, "Platform Clock"},
|
|
{"Int Mic", NULL, "Platform Clock"},
|
|
{"Ext Spk", NULL, "Platform Clock"},
|
|
};
|
|
|
|
static const struct snd_kcontrol_new cht_mc_controls[] = {
|
|
SOC_DAPM_PIN_SWITCH("Headphone"),
|
|
SOC_DAPM_PIN_SWITCH("Headset Mic"),
|
|
SOC_DAPM_PIN_SWITCH("Int Mic"),
|
|
SOC_DAPM_PIN_SWITCH("Int Analog Mic"),
|
|
SOC_DAPM_PIN_SWITCH("Ext Spk"),
|
|
};
|
|
|
|
static struct snd_soc_jack_pin cht_bsw_jack_pins[] = {
|
|
{
|
|
.pin = "Headphone",
|
|
.mask = SND_JACK_HEADPHONE,
|
|
},
|
|
{
|
|
.pin = "Headset Mic",
|
|
.mask = SND_JACK_MICROPHONE,
|
|
},
|
|
};
|
|
|
|
static int cht_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;
|
|
|
|
/* set codec PLL source to the 19.2MHz platform clock (MCLK) */
|
|
ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK,
|
|
CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
|
|
if (ret < 0) {
|
|
dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1,
|
|
params_rate(params) * 512, SND_SOC_CLOCK_IN);
|
|
if (ret < 0) {
|
|
dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
|
|
{
|
|
int ret;
|
|
int jack_type;
|
|
struct snd_soc_codec *codec = runtime->codec;
|
|
struct snd_soc_dai *codec_dai = runtime->codec_dai;
|
|
struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
|
|
|
|
/* Select clk_i2s1_asrc as ASRC clock source */
|
|
rt5645_sel_asrc_clk_src(codec,
|
|
RT5645_DA_STEREO_FILTER |
|
|
RT5645_DA_MONO_L_FILTER |
|
|
RT5645_DA_MONO_R_FILTER |
|
|
RT5645_AD_STEREO_FILTER,
|
|
RT5645_CLK_SEL_I2S1_ASRC);
|
|
|
|
/* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
|
|
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);
|
|
if (ret < 0) {
|
|
dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
if (ctx->acpi_card->codec_type == CODEC_TYPE_RT5650)
|
|
jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
|
|
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
|
|
SND_JACK_BTN_2 | SND_JACK_BTN_3;
|
|
else
|
|
jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
|
|
|
|
ret = snd_soc_card_jack_new(runtime->card, "Headset",
|
|
jack_type, &ctx->jack,
|
|
cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins));
|
|
if (ret) {
|
|
dev_err(runtime->dev, "Headset jack creation failed %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
rt5645_set_jack_detect(codec, &ctx->jack, &ctx->jack, &ctx->jack);
|
|
|
|
if (ctx->mclk) {
|
|
/*
|
|
* 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(ctx->mclk);
|
|
if (!ret)
|
|
clk_disable_unprepare(ctx->mclk);
|
|
|
|
ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
|
|
|
|
if (ret)
|
|
dev_err(runtime->dev, "unable to set MCLK rate\n");
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int cht_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 */
|
|
params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
|
|
return 0;
|
|
}
|
|
|
|
static int cht_aif1_startup(struct snd_pcm_substream *substream)
|
|
{
|
|
return snd_pcm_hw_constraint_single(substream->runtime,
|
|
SNDRV_PCM_HW_PARAM_RATE, 48000);
|
|
}
|
|
|
|
static struct snd_soc_ops cht_aif1_ops = {
|
|
.startup = cht_aif1_startup,
|
|
};
|
|
|
|
static struct snd_soc_ops cht_be_ssp2_ops = {
|
|
.hw_params = cht_aif1_hw_params,
|
|
};
|
|
|
|
static struct snd_soc_dai_link cht_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 = &cht_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 = &cht_aif1_ops,
|
|
},
|
|
[MERR_DPCM_COMPR] = {
|
|
.name = "Compressed Port",
|
|
.stream_name = "Compress",
|
|
.cpu_dai_name = "compress-cpu-dai",
|
|
.codec_dai_name = "snd-soc-dummy-dai",
|
|
.codec_name = "snd-soc-dummy",
|
|
.platform_name = "sst-mfld-platform",
|
|
},
|
|
/* CODEC<->CODEC link */
|
|
/* back ends */
|
|
{
|
|
.name = "SSP2-Codec",
|
|
.id = 1,
|
|
.cpu_dai_name = "ssp2-port",
|
|
.platform_name = "sst-mfld-platform",
|
|
.no_pcm = 1,
|
|
.codec_dai_name = "rt5645-aif1",
|
|
.codec_name = "i2c-10EC5645:00",
|
|
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF
|
|
| SND_SOC_DAIFMT_CBS_CFS,
|
|
.init = cht_codec_init,
|
|
.be_hw_params_fixup = cht_codec_fixup,
|
|
.nonatomic = true,
|
|
.dpcm_playback = 1,
|
|
.dpcm_capture = 1,
|
|
.ops = &cht_be_ssp2_ops,
|
|
},
|
|
};
|
|
|
|
/* SoC card */
|
|
static struct snd_soc_card snd_soc_card_chtrt5645 = {
|
|
.name = "chtrt5645",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = cht_dailink,
|
|
.num_links = ARRAY_SIZE(cht_dailink),
|
|
.dapm_widgets = cht_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
|
|
.dapm_routes = cht_rt5645_audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(cht_rt5645_audio_map),
|
|
.controls = cht_mc_controls,
|
|
.num_controls = ARRAY_SIZE(cht_mc_controls),
|
|
};
|
|
|
|
static struct snd_soc_card snd_soc_card_chtrt5650 = {
|
|
.name = "chtrt5650",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = cht_dailink,
|
|
.num_links = ARRAY_SIZE(cht_dailink),
|
|
.dapm_widgets = cht_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
|
|
.dapm_routes = cht_rt5650_audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(cht_rt5650_audio_map),
|
|
.controls = cht_mc_controls,
|
|
.num_controls = ARRAY_SIZE(cht_mc_controls),
|
|
};
|
|
|
|
static struct cht_acpi_card snd_soc_cards[] = {
|
|
{"10EC5640", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
|
|
{"10EC5645", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
|
|
{"10EC5650", CODEC_TYPE_RT5650, &snd_soc_card_chtrt5650},
|
|
};
|
|
|
|
static char cht_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
|
|
|
|
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;
|
|
}
|
|
|
|
static int snd_cht_mc_probe(struct platform_device *pdev)
|
|
{
|
|
int ret_val = 0;
|
|
int i;
|
|
struct cht_mc_private *drv;
|
|
struct snd_soc_card *card = snd_soc_cards[0].soc_card;
|
|
struct sst_acpi_mach *mach;
|
|
const char *i2c_name = NULL;
|
|
int dai_index = 0;
|
|
bool found = false;
|
|
|
|
drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
|
|
if (!drv)
|
|
return -ENOMEM;
|
|
|
|
mach = (&pdev->dev)->platform_data;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) {
|
|
if (acpi_dev_found(snd_soc_cards[i].codec_id) &&
|
|
(!strncmp(snd_soc_cards[i].codec_id, mach->id, 8))) {
|
|
dev_dbg(&pdev->dev,
|
|
"found codec %s\n", snd_soc_cards[i].codec_id);
|
|
card = snd_soc_cards[i].soc_card;
|
|
drv->acpi_card = &snd_soc_cards[i];
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
dev_err(&pdev->dev, "No matching HID found in supported list\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
card->dev = &pdev->dev;
|
|
sprintf(drv->codec_name, "i2c-%s:00", drv->acpi_card->codec_id);
|
|
|
|
/* set correct codec name */
|
|
for (i = 0; i < ARRAY_SIZE(cht_dailink); i++)
|
|
if (!strcmp(card->dai_link[i].codec_name, "i2c-10EC5645:00")) {
|
|
card->dai_link[i].codec_name = drv->codec_name;
|
|
dai_index = i;
|
|
}
|
|
|
|
/* fixup codec name based on HID */
|
|
i2c_name = sst_acpi_find_name_from_hid(mach->id);
|
|
if (i2c_name != NULL) {
|
|
snprintf(cht_rt5640_codec_name, sizeof(cht_rt5640_codec_name),
|
|
"%s%s", "i2c-", i2c_name);
|
|
cht_dailink[dai_index].codec_name = cht_rt5640_codec_name;
|
|
}
|
|
|
|
if (is_valleyview()) {
|
|
drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
|
|
if (IS_ERR(drv->mclk)) {
|
|
dev_err(&pdev->dev,
|
|
"Failed to get MCLK from pmc_plt_clk_3: %ld\n",
|
|
PTR_ERR(drv->mclk));
|
|
return PTR_ERR(drv->mclk);
|
|
}
|
|
}
|
|
|
|
snd_soc_card_set_drvdata(card, drv);
|
|
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 snd_cht_mc_driver = {
|
|
.driver = {
|
|
.name = "cht-bsw-rt5645",
|
|
},
|
|
.probe = snd_cht_mc_probe,
|
|
};
|
|
|
|
module_platform_driver(snd_cht_mc_driver)
|
|
|
|
MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
|
|
MODULE_AUTHOR("Fang, Yang A,N,Harshapriya");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_ALIAS("platform:cht-bsw-rt5645");
|