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.
537 lines
17 KiB
537 lines
17 KiB
/* |
|
* ASoC Driver for HiFiBerry DAC+ / DAC Pro with ADC PRO Version (SW control) |
|
* |
|
* Author: Daniel Matuschek, Stuart MacLean <[email protected]> |
|
* Copyright 2014-2015 |
|
* based on code by Florian Meier <[email protected]> |
|
* ADC added by Joerg Schambacher <[email protected]> |
|
* Copyright 2018-19 |
|
* |
|
* 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 <linux/kernel.h> |
|
#include <linux/clk.h> |
|
#include <linux/kernel.h> |
|
#include <linux/module.h> |
|
#include <linux/of.h> |
|
#include <linux/slab.h> |
|
#include <linux/delay.h> |
|
|
|
#include <sound/core.h> |
|
#include <sound/pcm.h> |
|
#include <sound/pcm_params.h> |
|
#include <sound/soc.h> |
|
#include <sound/jack.h> |
|
#include <sound/tlv.h> |
|
|
|
#include "../codecs/pcm512x.h" |
|
#include "../codecs/pcm186x.h" |
|
|
|
#define HIFIBERRY_DACPRO_NOCLOCK 0 |
|
#define HIFIBERRY_DACPRO_CLK44EN 1 |
|
#define HIFIBERRY_DACPRO_CLK48EN 2 |
|
|
|
struct pcm512x_priv { |
|
struct regmap *regmap; |
|
struct clk *sclk; |
|
}; |
|
|
|
/* Clock rate of CLK44EN attached to GPIO6 pin */ |
|
#define CLK_44EN_RATE 22579200UL |
|
/* Clock rate of CLK48EN attached to GPIO3 pin */ |
|
#define CLK_48EN_RATE 24576000UL |
|
|
|
static bool slave; |
|
static bool snd_rpi_hifiberry_is_dacpro; |
|
static bool digital_gain_0db_limit = true; |
|
static bool leds_off; |
|
|
|
static const unsigned int pcm186x_adc_input_channel_sel_value[] = { |
|
0x00, 0x01, 0x02, 0x03, 0x10 |
|
}; |
|
|
|
static const char * const pcm186x_adcl_input_channel_sel_text[] = { |
|
"No Select", |
|
"VINL1[SE]", /* Default for ADCL */ |
|
"VINL2[SE]", |
|
"VINL2[SE] + VINL1[SE]", |
|
"{VIN1P, VIN1M}[DIFF]" |
|
}; |
|
|
|
static const char * const pcm186x_adcr_input_channel_sel_text[] = { |
|
"No Select", |
|
"VINR1[SE]", /* Default for ADCR */ |
|
"VINR2[SE]", |
|
"VINR2[SE] + VINR1[SE]", |
|
"{VIN2P, VIN2M}[DIFF]" |
|
}; |
|
|
|
static const struct soc_enum pcm186x_adc_input_channel_sel[] = { |
|
SOC_VALUE_ENUM_SINGLE(PCM186X_ADC1_INPUT_SEL_L, 0, |
|
PCM186X_ADC_INPUT_SEL_MASK, |
|
ARRAY_SIZE(pcm186x_adcl_input_channel_sel_text), |
|
pcm186x_adcl_input_channel_sel_text, |
|
pcm186x_adc_input_channel_sel_value), |
|
SOC_VALUE_ENUM_SINGLE(PCM186X_ADC1_INPUT_SEL_R, 0, |
|
PCM186X_ADC_INPUT_SEL_MASK, |
|
ARRAY_SIZE(pcm186x_adcr_input_channel_sel_text), |
|
pcm186x_adcr_input_channel_sel_text, |
|
pcm186x_adc_input_channel_sel_value), |
|
}; |
|
|
|
static const unsigned int pcm186x_mic_bias_sel_value[] = { |
|
0x00, 0x01, 0x11 |
|
}; |
|
|
|
static const char * const pcm186x_mic_bias_sel_text[] = { |
|
"Mic Bias off", |
|
"Mic Bias on", |
|
"Mic Bias with Bypass Resistor" |
|
}; |
|
|
|
static const struct soc_enum pcm186x_mic_bias_sel[] = { |
|
SOC_VALUE_ENUM_SINGLE(PCM186X_MIC_BIAS_CTRL, 0, |
|
GENMASK(4, 0), |
|
ARRAY_SIZE(pcm186x_mic_bias_sel_text), |
|
pcm186x_mic_bias_sel_text, |
|
pcm186x_mic_bias_sel_value), |
|
}; |
|
|
|
static const unsigned int pcm186x_gain_sel_value[] = { |
|
0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, |
|
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, |
|
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, |
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
|
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
|
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, |
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, |
|
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, |
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, |
|
0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, |
|
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, |
|
0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, |
|
0x50 |
|
}; |
|
|
|
static const char * const pcm186x_gain_sel_text[] = { |
|
"-12.0dB", "-11.5dB", "-11.0dB", "-10.5dB", "-10.0dB", "-9.5dB", |
|
"-9.0dB", "-8.5dB", "-8.0dB", "-7.5dB", "-7.0dB", "-6.5dB", |
|
"-6.0dB", "-5.5dB", "-5.0dB", "-4.5dB", "-4.0dB", "-3.5dB", |
|
"-3.0dB", "-2.5dB", "-2.0dB", "-1.5dB", "-1.0dB", "-0.5dB", |
|
"0.0dB", "0.5dB", "1.0dB", "1.5dB", "2.0dB", "2.5dB", |
|
"3.0dB", "3.5dB", "4.0dB", "4.5dB", "5.0dB", "5.5dB", |
|
"6.0dB", "6.5dB", "7.0dB", "7.5dB", "8.0dB", "8.5dB", |
|
"9.0dB", "9.5dB", "10.0dB", "10.5dB", "11.0dB", "11.5dB", |
|
"12.0dB", "12.5dB", "13.0dB", "13.5dB", "14.0dB", "14.5dB", |
|
"15.0dB", "15.5dB", "16.0dB", "16.5dB", "17.0dB", "17.5dB", |
|
"18.0dB", "18.5dB", "19.0dB", "19.5dB", "20.0dB", "20.5dB", |
|
"21.0dB", "21.5dB", "22.0dB", "22.5dB", "23.0dB", "23.5dB", |
|
"24.0dB", "24.5dB", "25.0dB", "25.5dB", "26.0dB", "26.5dB", |
|
"27.0dB", "27.5dB", "28.0dB", "28.5dB", "29.0dB", "29.5dB", |
|
"30.0dB", "30.5dB", "31.0dB", "31.5dB", "32.0dB", "32.5dB", |
|
"33.0dB", "33.5dB", "34.0dB", "34.5dB", "35.0dB", "35.5dB", |
|
"36.0dB", "36.5dB", "37.0dB", "37.5dB", "38.0dB", "38.5dB", |
|
"39.0dB", "39.5dB", "40.0dB"}; |
|
|
|
static const struct soc_enum pcm186x_gain_sel[] = { |
|
SOC_VALUE_ENUM_SINGLE(PCM186X_PGA_VAL_CH1_L, 0, |
|
0xff, |
|
ARRAY_SIZE(pcm186x_gain_sel_text), |
|
pcm186x_gain_sel_text, |
|
pcm186x_gain_sel_value), |
|
SOC_VALUE_ENUM_SINGLE(PCM186X_PGA_VAL_CH1_R, 0, |
|
0xff, |
|
ARRAY_SIZE(pcm186x_gain_sel_text), |
|
pcm186x_gain_sel_text, |
|
pcm186x_gain_sel_value), |
|
}; |
|
|
|
static const struct snd_kcontrol_new pcm1863_snd_controls_card[] = { |
|
SOC_ENUM("ADC Left Input", pcm186x_adc_input_channel_sel[0]), |
|
SOC_ENUM("ADC Right Input", pcm186x_adc_input_channel_sel[1]), |
|
SOC_ENUM("ADC Mic Bias", pcm186x_mic_bias_sel), |
|
SOC_ENUM("PGA Gain Left", pcm186x_gain_sel[0]), |
|
SOC_ENUM("PGA Gain Right", pcm186x_gain_sel[1]), |
|
}; |
|
|
|
static int pcm1863_add_controls(struct snd_soc_component *component) |
|
{ |
|
snd_soc_add_component_controls(component, |
|
pcm1863_snd_controls_card, |
|
ARRAY_SIZE(pcm1863_snd_controls_card)); |
|
return 0; |
|
} |
|
|
|
static void snd_rpi_hifiberry_dacplusadcpro_select_clk( |
|
struct snd_soc_component *component, int clk_id) |
|
{ |
|
switch (clk_id) { |
|
case HIFIBERRY_DACPRO_NOCLOCK: |
|
snd_soc_component_update_bits(component, |
|
PCM512x_GPIO_CONTROL_1, 0x24, 0x00); |
|
break; |
|
case HIFIBERRY_DACPRO_CLK44EN: |
|
snd_soc_component_update_bits(component, |
|
PCM512x_GPIO_CONTROL_1, 0x24, 0x20); |
|
break; |
|
case HIFIBERRY_DACPRO_CLK48EN: |
|
snd_soc_component_update_bits(component, |
|
PCM512x_GPIO_CONTROL_1, 0x24, 0x04); |
|
break; |
|
} |
|
usleep_range(3000, 4000); |
|
} |
|
|
|
static void snd_rpi_hifiberry_dacplusadcpro_clk_gpio(struct snd_soc_component *component) |
|
{ |
|
snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24); |
|
snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02); |
|
snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02); |
|
} |
|
|
|
static bool snd_rpi_hifiberry_dacplusadcpro_is_sclk(struct snd_soc_component *component) |
|
{ |
|
unsigned int sck; |
|
|
|
sck = snd_soc_component_read(component, PCM512x_RATE_DET_4); |
|
return (!(sck & 0x40)); |
|
} |
|
|
|
static bool snd_rpi_hifiberry_dacplusadcpro_is_pro_card(struct snd_soc_component *component) |
|
{ |
|
bool isClk44EN, isClk48En, isNoClk; |
|
|
|
snd_rpi_hifiberry_dacplusadcpro_clk_gpio(component); |
|
|
|
snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_CLK44EN); |
|
isClk44EN = snd_rpi_hifiberry_dacplusadcpro_is_sclk(component); |
|
|
|
snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK); |
|
isNoClk = snd_rpi_hifiberry_dacplusadcpro_is_sclk(component); |
|
|
|
snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_CLK48EN); |
|
isClk48En = snd_rpi_hifiberry_dacplusadcpro_is_sclk(component); |
|
|
|
return (isClk44EN && isClk48En && !isNoClk); |
|
} |
|
|
|
static int snd_rpi_hifiberry_dacplusadcpro_clk_for_rate(int sample_rate) |
|
{ |
|
int type; |
|
|
|
switch (sample_rate) { |
|
case 11025: |
|
case 22050: |
|
case 44100: |
|
case 88200: |
|
case 176400: |
|
case 352800: |
|
type = HIFIBERRY_DACPRO_CLK44EN; |
|
break; |
|
default: |
|
type = HIFIBERRY_DACPRO_CLK48EN; |
|
break; |
|
} |
|
return type; |
|
} |
|
|
|
static void snd_rpi_hifiberry_dacplusadcpro_set_sclk(struct snd_soc_component *component, |
|
int sample_rate) |
|
{ |
|
struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); |
|
|
|
if (!IS_ERR(pcm512x->sclk)) { |
|
int ctype; |
|
|
|
ctype = snd_rpi_hifiberry_dacplusadcpro_clk_for_rate(sample_rate); |
|
clk_set_rate(pcm512x->sclk, (ctype == HIFIBERRY_DACPRO_CLK44EN) |
|
? CLK_44EN_RATE : CLK_48EN_RATE); |
|
snd_rpi_hifiberry_dacplusadcpro_select_clk(component, ctype); |
|
} |
|
} |
|
|
|
static int snd_rpi_hifiberry_dacplusadcpro_init(struct snd_soc_pcm_runtime *rtd) |
|
{ |
|
struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component; |
|
struct snd_soc_component *adc = asoc_rtd_to_codec(rtd, 1)->component; |
|
struct snd_soc_dai_driver *adc_driver = asoc_rtd_to_codec(rtd, 1)->driver; |
|
struct pcm512x_priv *priv; |
|
int ret; |
|
|
|
if (slave) |
|
snd_rpi_hifiberry_is_dacpro = false; |
|
else |
|
snd_rpi_hifiberry_is_dacpro = |
|
snd_rpi_hifiberry_dacplusadcpro_is_pro_card(dac); |
|
|
|
if (snd_rpi_hifiberry_is_dacpro) { |
|
struct snd_soc_dai_link *dai = rtd->dai_link; |
|
|
|
dai->name = "HiFiBerry DAC+ADC Pro"; |
|
dai->stream_name = "HiFiBerry DAC+ADC Pro HiFi"; |
|
dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
|
| SND_SOC_DAIFMT_CBM_CFM; |
|
|
|
// set DAC DAI configuration |
|
ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0), |
|
SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
|
| SND_SOC_DAIFMT_CBM_CFM); |
|
if (ret < 0) |
|
return ret; |
|
|
|
// set ADC DAI configuration |
|
ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 1), |
|
SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
|
| SND_SOC_DAIFMT_CBS_CFS); |
|
if (ret < 0) |
|
return ret; |
|
|
|
// set CPU DAI configuration |
|
ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0), |
|
SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
|
if (ret < 0) |
|
return ret; |
|
|
|
snd_soc_component_update_bits(dac, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11); |
|
snd_soc_component_update_bits(dac, PCM512x_MASTER_MODE, 0x03, 0x03); |
|
snd_soc_component_update_bits(dac, PCM512x_MASTER_CLKDIV_2, 0x7f, 63); |
|
} else { |
|
priv = snd_soc_component_get_drvdata(dac); |
|
priv->sclk = ERR_PTR(-ENOENT); |
|
} |
|
|
|
/* disable 24bit mode as long as I2S module does not have sign extension fixed */ |
|
adc_driver->capture.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE; |
|
|
|
snd_soc_component_update_bits(dac, PCM512x_GPIO_EN, 0x08, 0x08); |
|
snd_soc_component_update_bits(dac, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02); |
|
if (leds_off) |
|
snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x00); |
|
else |
|
snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08); |
|
|
|
ret = pcm1863_add_controls(adc); |
|
if (ret < 0) |
|
dev_warn(rtd->dev, "Failed to add pcm1863 controls: %d\n", |
|
ret); |
|
|
|
/* set GPIO2 to output, GPIO3 input */ |
|
snd_soc_component_write(adc, PCM186X_GPIO3_2_CTRL, 0x00); |
|
snd_soc_component_write(adc, PCM186X_GPIO3_2_DIR_CTRL, 0x04); |
|
if (leds_off) |
|
snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x00); |
|
else |
|
snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x40); |
|
|
|
if (digital_gain_0db_limit) { |
|
int ret; |
|
struct snd_soc_card *card = rtd->card; |
|
|
|
ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207); |
|
if (ret < 0) |
|
dev_warn(card->dev, "Failed to set volume limit: %d\n", ret); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int snd_rpi_hifiberry_dacplusadcpro_update_rate_den( |
|
struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) |
|
{ |
|
struct snd_soc_pcm_runtime *rtd = substream->private_data; |
|
struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; /* only use DAC */ |
|
struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); |
|
struct snd_ratnum *rats_no_pll; |
|
unsigned int num = 0, den = 0; |
|
int err; |
|
|
|
rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL); |
|
if (!rats_no_pll) |
|
return -ENOMEM; |
|
|
|
rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64; |
|
rats_no_pll->den_min = 1; |
|
rats_no_pll->den_max = 128; |
|
rats_no_pll->den_step = 1; |
|
|
|
err = snd_interval_ratnum(hw_param_interval(params, |
|
SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den); |
|
if (err >= 0 && den) { |
|
params->rate_num = num; |
|
params->rate_den = den; |
|
} |
|
|
|
devm_kfree(rtd->dev, rats_no_pll); |
|
return 0; |
|
} |
|
|
|
static int snd_rpi_hifiberry_dacplusadcpro_hw_params( |
|
struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) |
|
{ |
|
int ret = 0; |
|
struct snd_soc_pcm_runtime *rtd = substream->private_data; |
|
int channels = params_channels(params); |
|
int width = 32; |
|
struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component; |
|
struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0); |
|
struct snd_soc_dai_driver *drv = dai->driver; |
|
const struct snd_soc_dai_ops *ops = drv->ops; |
|
|
|
if (snd_rpi_hifiberry_is_dacpro) { |
|
width = snd_pcm_format_physical_width(params_format(params)); |
|
|
|
snd_rpi_hifiberry_dacplusadcpro_set_sclk(dac, |
|
params_rate(params)); |
|
|
|
ret = snd_rpi_hifiberry_dacplusadcpro_update_rate_den( |
|
substream, params); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), channels * width); |
|
if (ret) |
|
return ret; |
|
ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), channels * width); |
|
if (ret) |
|
return ret; |
|
if (snd_rpi_hifiberry_is_dacpro && ops->hw_params) |
|
ret = ops->hw_params(substream, params, dai); |
|
return ret; |
|
} |
|
|
|
static int snd_rpi_hifiberry_dacplusadcpro_startup( |
|
struct snd_pcm_substream *substream) |
|
{ |
|
struct snd_soc_pcm_runtime *rtd = substream->private_data; |
|
struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component; |
|
struct snd_soc_component *adc = asoc_rtd_to_codec(rtd, 1)->component; |
|
|
|
if (leds_off) |
|
return 0; |
|
/* switch on respective LED */ |
|
if (!substream->stream) |
|
snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08); |
|
else |
|
snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x40); |
|
return 0; |
|
} |
|
|
|
static void snd_rpi_hifiberry_dacplusadcpro_shutdown( |
|
struct snd_pcm_substream *substream) |
|
{ |
|
struct snd_soc_pcm_runtime *rtd = substream->private_data; |
|
struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component; |
|
struct snd_soc_component *adc = asoc_rtd_to_codec(rtd, 1)->component; |
|
|
|
/* switch off respective LED */ |
|
if (!substream->stream) |
|
snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x00); |
|
else |
|
snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x00); |
|
} |
|
|
|
|
|
/* machine stream operations */ |
|
static struct snd_soc_ops snd_rpi_hifiberry_dacplusadcpro_ops = { |
|
.hw_params = snd_rpi_hifiberry_dacplusadcpro_hw_params, |
|
.startup = snd_rpi_hifiberry_dacplusadcpro_startup, |
|
.shutdown = snd_rpi_hifiberry_dacplusadcpro_shutdown, |
|
}; |
|
|
|
SND_SOC_DAILINK_DEFS(hifi, |
|
DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")), |
|
DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi"), |
|
COMP_CODEC("pcm186x.1-004a", "pcm1863-aif")), |
|
DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0"))); |
|
|
|
static struct snd_soc_dai_link snd_rpi_hifiberry_dacplusadcpro_dai[] = { |
|
{ |
|
.name = "HiFiBerry DAC+ADC PRO", |
|
.stream_name = "HiFiBerry DAC+ADC PRO HiFi", |
|
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
|
SND_SOC_DAIFMT_CBS_CFS, |
|
.ops = &snd_rpi_hifiberry_dacplusadcpro_ops, |
|
.init = snd_rpi_hifiberry_dacplusadcpro_init, |
|
SND_SOC_DAILINK_REG(hifi), |
|
}, |
|
}; |
|
|
|
/* audio machine driver */ |
|
static struct snd_soc_card snd_rpi_hifiberry_dacplusadcpro = { |
|
.name = "snd_rpi_hifiberry_dacplusadcpro", |
|
.driver_name = "HifiberryDacpAdcPro", |
|
.owner = THIS_MODULE, |
|
.dai_link = snd_rpi_hifiberry_dacplusadcpro_dai, |
|
.num_links = ARRAY_SIZE(snd_rpi_hifiberry_dacplusadcpro_dai), |
|
}; |
|
|
|
static int snd_rpi_hifiberry_dacplusadcpro_probe(struct platform_device *pdev) |
|
{ |
|
int ret = 0, i = 0; |
|
struct snd_soc_card *card = &snd_rpi_hifiberry_dacplusadcpro; |
|
|
|
snd_rpi_hifiberry_dacplusadcpro.dev = &pdev->dev; |
|
if (pdev->dev.of_node) { |
|
struct device_node *i2s_node; |
|
struct snd_soc_dai_link *dai; |
|
|
|
dai = &snd_rpi_hifiberry_dacplusadcpro_dai[0]; |
|
i2s_node = of_parse_phandle(pdev->dev.of_node, |
|
"i2s-controller", 0); |
|
if (i2s_node) { |
|
for (i = 0; i < card->num_links; i++) { |
|
dai->cpus->dai_name = NULL; |
|
dai->cpus->of_node = i2s_node; |
|
dai->platforms->name = NULL; |
|
dai->platforms->of_node = i2s_node; |
|
} |
|
} |
|
} |
|
digital_gain_0db_limit = !of_property_read_bool( |
|
pdev->dev.of_node, "hifiberry-dacplusadcpro,24db_digital_gain"); |
|
slave = of_property_read_bool(pdev->dev.of_node, |
|
"hifiberry-dacplusadcpro,slave"); |
|
leds_off = of_property_read_bool(pdev->dev.of_node, |
|
"hifiberry-dacplusadcpro,leds_off"); |
|
ret = snd_soc_register_card(&snd_rpi_hifiberry_dacplusadcpro); |
|
if (ret && ret != -EPROBE_DEFER) |
|
dev_err(&pdev->dev, |
|
"snd_soc_register_card() failed: %d\n", ret); |
|
|
|
return ret; |
|
} |
|
|
|
static const struct of_device_id snd_rpi_hifiberry_dacplusadcpro_of_match[] = { |
|
{ .compatible = "hifiberry,hifiberry-dacplusadcpro", }, |
|
{}, |
|
}; |
|
|
|
MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplusadcpro_of_match); |
|
|
|
static struct platform_driver snd_rpi_hifiberry_dacplusadcpro_driver = { |
|
.driver = { |
|
.name = "snd-rpi-hifiberry-dacplusadcpro", |
|
.owner = THIS_MODULE, |
|
.of_match_table = snd_rpi_hifiberry_dacplusadcpro_of_match, |
|
}, |
|
.probe = snd_rpi_hifiberry_dacplusadcpro_probe, |
|
}; |
|
|
|
module_platform_driver(snd_rpi_hifiberry_dacplusadcpro_driver); |
|
|
|
MODULE_AUTHOR("Joerg Schambacher <[email protected]>"); |
|
MODULE_AUTHOR("Daniel Matuschek <[email protected]>"); |
|
MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+ADC"); |
|
MODULE_LICENSE("GPL v2");
|
|
|