mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
201 lines
5.3 KiB
201 lines
5.3 KiB
// SPDX-License-Identifier: GPL-2.0+ |
|
|
|
#include "../codecs/wm8994.h" |
|
#include <sound/pcm_params.h> |
|
#include <sound/soc.h> |
|
#include <linux/module.h> |
|
#include <linux/of.h> |
|
#include <linux/of_device.h> |
|
|
|
/* |
|
* Default CFG switch settings to use this driver: |
|
* SMDKV310: CFG5-1000, CFG7-111111 |
|
*/ |
|
|
|
/* |
|
* Configure audio route as :- |
|
* $ amixer sset 'DAC1' on,on |
|
* $ amixer sset 'Right Headphone Mux' 'DAC' |
|
* $ amixer sset 'Left Headphone Mux' 'DAC' |
|
* $ amixer sset 'DAC1R Mixer AIF1.1' on |
|
* $ amixer sset 'DAC1L Mixer AIF1.1' on |
|
* $ amixer sset 'IN2L' on |
|
* $ amixer sset 'IN2L PGA IN2LN' on |
|
* $ amixer sset 'MIXINL IN2L' on |
|
* $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on |
|
* $ amixer sset 'IN2R' on |
|
* $ amixer sset 'IN2R PGA IN2RN' on |
|
* $ amixer sset 'MIXINR IN2R' on |
|
* $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on |
|
*/ |
|
|
|
/* SMDK has a 16.934MHZ crystal attached to WM8994 */ |
|
#define SMDK_WM8994_FREQ 16934000 |
|
|
|
struct smdk_wm8994_data { |
|
int mclk1_rate; |
|
}; |
|
|
|
/* Default SMDKs */ |
|
static struct smdk_wm8994_data smdk_board_data = { |
|
.mclk1_rate = SMDK_WM8994_FREQ, |
|
}; |
|
|
|
static int smdk_hw_params(struct snd_pcm_substream *substream, |
|
struct snd_pcm_hw_params *params) |
|
{ |
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
|
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
|
unsigned int pll_out; |
|
int ret; |
|
|
|
/* AIF1CLK should be >=3MHz for optimal performance */ |
|
if (params_width(params) == 24) |
|
pll_out = params_rate(params) * 384; |
|
else if (params_rate(params) == 8000 || params_rate(params) == 11025) |
|
pll_out = params_rate(params) * 512; |
|
else |
|
pll_out = params_rate(params) * 256; |
|
|
|
ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1, |
|
SMDK_WM8994_FREQ, pll_out); |
|
if (ret < 0) |
|
return ret; |
|
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1, |
|
pll_out, SND_SOC_CLOCK_IN); |
|
if (ret < 0) |
|
return ret; |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* SMDK WM8994 DAI operations. |
|
*/ |
|
static const struct snd_soc_ops smdk_ops = { |
|
.hw_params = smdk_hw_params, |
|
}; |
|
|
|
static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd) |
|
{ |
|
struct snd_soc_dapm_context *dapm = &rtd->card->dapm; |
|
|
|
/* Other pins NC */ |
|
snd_soc_dapm_nc_pin(dapm, "HPOUT2P"); |
|
snd_soc_dapm_nc_pin(dapm, "HPOUT2N"); |
|
snd_soc_dapm_nc_pin(dapm, "SPKOUTLN"); |
|
snd_soc_dapm_nc_pin(dapm, "SPKOUTLP"); |
|
snd_soc_dapm_nc_pin(dapm, "SPKOUTRP"); |
|
snd_soc_dapm_nc_pin(dapm, "SPKOUTRN"); |
|
snd_soc_dapm_nc_pin(dapm, "LINEOUT1N"); |
|
snd_soc_dapm_nc_pin(dapm, "LINEOUT1P"); |
|
snd_soc_dapm_nc_pin(dapm, "LINEOUT2N"); |
|
snd_soc_dapm_nc_pin(dapm, "LINEOUT2P"); |
|
snd_soc_dapm_nc_pin(dapm, "IN1LP"); |
|
snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN"); |
|
snd_soc_dapm_nc_pin(dapm, "IN1RP"); |
|
snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP"); |
|
|
|
return 0; |
|
} |
|
|
|
SND_SOC_DAILINK_DEFS(aif1, |
|
DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")), |
|
DAILINK_COMP_ARRAY(COMP_CODEC("wm8994-codec", "wm8994-aif1")), |
|
DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0"))); |
|
|
|
SND_SOC_DAILINK_DEFS(fifo_tx, |
|
DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s-sec")), |
|
DAILINK_COMP_ARRAY(COMP_CODEC("wm8994-codec", "wm8994-aif1")), |
|
DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s-sec"))); |
|
|
|
static struct snd_soc_dai_link smdk_dai[] = { |
|
{ /* Primary DAI i/f */ |
|
.name = "WM8994 AIF1", |
|
.stream_name = "Pri_Dai", |
|
.init = smdk_wm8994_init_paiftx, |
|
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
|
SND_SOC_DAIFMT_CBM_CFM, |
|
.ops = &smdk_ops, |
|
SND_SOC_DAILINK_REG(aif1), |
|
}, { /* Sec_Fifo Playback i/f */ |
|
.name = "Sec_FIFO TX", |
|
.stream_name = "Sec_Dai", |
|
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
|
SND_SOC_DAIFMT_CBM_CFM, |
|
.ops = &smdk_ops, |
|
SND_SOC_DAILINK_REG(fifo_tx), |
|
}, |
|
}; |
|
|
|
static struct snd_soc_card smdk = { |
|
.name = "SMDK-I2S", |
|
.owner = THIS_MODULE, |
|
.dai_link = smdk_dai, |
|
.num_links = ARRAY_SIZE(smdk_dai), |
|
}; |
|
|
|
static const struct of_device_id samsung_wm8994_of_match[] __maybe_unused = { |
|
{ .compatible = "samsung,smdk-wm8994", .data = &smdk_board_data }, |
|
{}, |
|
}; |
|
MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match); |
|
|
|
static int smdk_audio_probe(struct platform_device *pdev) |
|
{ |
|
int ret; |
|
struct device_node *np = pdev->dev.of_node; |
|
struct snd_soc_card *card = &smdk; |
|
struct smdk_wm8994_data *board; |
|
const struct of_device_id *id; |
|
|
|
card->dev = &pdev->dev; |
|
|
|
board = devm_kzalloc(&pdev->dev, sizeof(*board), GFP_KERNEL); |
|
if (!board) |
|
return -ENOMEM; |
|
|
|
if (np) { |
|
smdk_dai[0].cpus->dai_name = NULL; |
|
smdk_dai[0].cpus->of_node = of_parse_phandle(np, |
|
"samsung,i2s-controller", 0); |
|
if (!smdk_dai[0].cpus->of_node) { |
|
dev_err(&pdev->dev, |
|
"Property 'samsung,i2s-controller' missing or invalid\n"); |
|
ret = -EINVAL; |
|
return ret; |
|
} |
|
|
|
smdk_dai[0].platforms->name = NULL; |
|
smdk_dai[0].platforms->of_node = smdk_dai[0].cpus->of_node; |
|
} |
|
|
|
id = of_match_device(samsung_wm8994_of_match, &pdev->dev); |
|
if (id) |
|
*board = *((struct smdk_wm8994_data *)id->data); |
|
|
|
platform_set_drvdata(pdev, board); |
|
|
|
ret = devm_snd_soc_register_card(&pdev->dev, card); |
|
|
|
if (ret) |
|
dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n"); |
|
|
|
return ret; |
|
} |
|
|
|
static struct platform_driver smdk_audio_driver = { |
|
.driver = { |
|
.name = "smdk-audio-wm8994", |
|
.of_match_table = of_match_ptr(samsung_wm8994_of_match), |
|
.pm = &snd_soc_pm_ops, |
|
}, |
|
.probe = smdk_audio_probe, |
|
}; |
|
|
|
module_platform_driver(smdk_audio_driver); |
|
|
|
MODULE_DESCRIPTION("ALSA SoC SMDK WM8994"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_ALIAS("platform:smdk-audio-wm8994");
|
|
|