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linux/sound/soc/sunxi/sun4i-codec.c

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/*
* Copyright 2014 Emilio López <emilio@elopez.com.ar>
* Copyright 2014 Jon Smirl <jonsmirl@gmail.com>
* Copyright 2015 Maxime Ripard <maxime.ripard@free-electrons.com>
* Copyright 2015 Adam Sampson <ats@offog.org>
* Copyright 2016 Chen-Yu Tsai <wens@csie.org>
*
* Based on the Allwinner SDK driver, released under the GPL.
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/clk.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <linux/gpio/consumer.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/initval.h>
#include <sound/dmaengine_pcm.h>
/* Codec DAC digital controls and FIFO registers */
#define SUN4I_CODEC_DAC_DPC (0x00)
#define SUN4I_CODEC_DAC_DPC_EN_DA (31)
#define SUN4I_CODEC_DAC_DPC_DVOL (12)
#define SUN4I_CODEC_DAC_FIFOC (0x04)
#define SUN4I_CODEC_DAC_FIFOC_DAC_FS (29)
#define SUN4I_CODEC_DAC_FIFOC_FIR_VERSION (28)
#define SUN4I_CODEC_DAC_FIFOC_SEND_LASAT (26)
#define SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE (24)
#define SUN4I_CODEC_DAC_FIFOC_DRQ_CLR_CNT (21)
#define SUN4I_CODEC_DAC_FIFOC_TX_TRIG_LEVEL (8)
#define SUN4I_CODEC_DAC_FIFOC_MONO_EN (6)
#define SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS (5)
#define SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN (4)
#define SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH (0)
#define SUN4I_CODEC_DAC_FIFOS (0x08)
#define SUN4I_CODEC_DAC_TXDATA (0x0c)
/* Codec DAC side analog signal controls */
#define SUN4I_CODEC_DAC_ACTL (0x10)
#define SUN4I_CODEC_DAC_ACTL_DACAENR (31)
#define SUN4I_CODEC_DAC_ACTL_DACAENL (30)
#define SUN4I_CODEC_DAC_ACTL_MIXEN (29)
#define SUN4I_CODEC_DAC_ACTL_LDACLMIXS (15)
#define SUN4I_CODEC_DAC_ACTL_RDACRMIXS (14)
#define SUN4I_CODEC_DAC_ACTL_LDACRMIXS (13)
#define SUN4I_CODEC_DAC_ACTL_DACPAS (8)
#define SUN4I_CODEC_DAC_ACTL_MIXPAS (7)
#define SUN4I_CODEC_DAC_ACTL_PA_MUTE (6)
#define SUN4I_CODEC_DAC_ACTL_PA_VOL (0)
#define SUN4I_CODEC_DAC_TUNE (0x14)
#define SUN4I_CODEC_DAC_DEBUG (0x18)
/* Codec ADC digital controls and FIFO registers */
#define SUN4I_CODEC_ADC_FIFOC (0x1c)
#define SUN4I_CODEC_ADC_FIFOC_ADC_FS (29)
#define SUN4I_CODEC_ADC_FIFOC_EN_AD (28)
#define SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE (24)
#define SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL (8)
#define SUN4I_CODEC_ADC_FIFOC_MONO_EN (7)
#define SUN4I_CODEC_ADC_FIFOC_RX_SAMPLE_BITS (6)
#define SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN (4)
#define SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH (0)
#define SUN4I_CODEC_ADC_FIFOS (0x20)
#define SUN4I_CODEC_ADC_RXDATA (0x24)
/* Codec ADC side analog signal controls */
#define SUN4I_CODEC_ADC_ACTL (0x28)
#define SUN4I_CODEC_ADC_ACTL_ADC_R_EN (31)
#define SUN4I_CODEC_ADC_ACTL_ADC_L_EN (30)
#define SUN4I_CODEC_ADC_ACTL_PREG1EN (29)
#define SUN4I_CODEC_ADC_ACTL_PREG2EN (28)
#define SUN4I_CODEC_ADC_ACTL_VMICEN (27)
#define SUN4I_CODEC_ADC_ACTL_VADCG (20)
#define SUN4I_CODEC_ADC_ACTL_ADCIS (17)
#define SUN4I_CODEC_ADC_ACTL_PA_EN (4)
#define SUN4I_CODEC_ADC_ACTL_DDE (3)
#define SUN4I_CODEC_ADC_DEBUG (0x2c)
/* FIFO counters */
#define SUN4I_CODEC_DAC_TXCNT (0x30)
#define SUN4I_CODEC_ADC_RXCNT (0x34)
/* Calibration register (sun7i only) */
#define SUN7I_CODEC_AC_DAC_CAL (0x38)
/* Microphone controls (sun7i only) */
#define SUN7I_CODEC_AC_MIC_PHONE_CAL (0x3c)
/*
* sun6i specific registers
*
* sun6i shares the same digital control and FIFO registers as sun4i,
* but only the DAC digital controls are at the same offset. The others
* have been moved around to accommodate extra analog controls.
*/
/* Codec DAC digital controls and FIFO registers */
#define SUN6I_CODEC_ADC_FIFOC (0x10)
#define SUN6I_CODEC_ADC_FIFOC_EN_AD (28)
#define SUN6I_CODEC_ADC_FIFOS (0x14)
#define SUN6I_CODEC_ADC_RXDATA (0x18)
/* Output mixer and gain controls */
#define SUN6I_CODEC_OM_DACA_CTRL (0x20)
#define SUN6I_CODEC_OM_DACA_CTRL_DACAREN (31)
#define SUN6I_CODEC_OM_DACA_CTRL_DACALEN (30)
#define SUN6I_CODEC_OM_DACA_CTRL_RMIXEN (29)
#define SUN6I_CODEC_OM_DACA_CTRL_LMIXEN (28)
#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_MIC1 (23)
#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_MIC2 (22)
#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_PHONE (21)
#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_PHONEP (20)
#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_LINEINR (19)
#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACR (18)
#define SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACL (17)
#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_MIC1 (16)
#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_MIC2 (15)
#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_PHONE (14)
#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_PHONEN (13)
#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_LINEINL (12)
#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACL (11)
#define SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACR (10)
#define SUN6I_CODEC_OM_DACA_CTRL_RHPIS (9)
#define SUN6I_CODEC_OM_DACA_CTRL_LHPIS (8)
#define SUN6I_CODEC_OM_DACA_CTRL_RHPPAMUTE (7)
#define SUN6I_CODEC_OM_DACA_CTRL_LHPPAMUTE (6)
#define SUN6I_CODEC_OM_DACA_CTRL_HPVOL (0)
#define SUN6I_CODEC_OM_PA_CTRL (0x24)
#define SUN6I_CODEC_OM_PA_CTRL_HPPAEN (31)
#define SUN6I_CODEC_OM_PA_CTRL_HPCOM_CTL (29)
#define SUN6I_CODEC_OM_PA_CTRL_COMPTEN (28)
#define SUN6I_CODEC_OM_PA_CTRL_MIC1G (15)
#define SUN6I_CODEC_OM_PA_CTRL_MIC2G (12)
#define SUN6I_CODEC_OM_PA_CTRL_LINEING (9)
#define SUN6I_CODEC_OM_PA_CTRL_PHONEG (6)
#define SUN6I_CODEC_OM_PA_CTRL_PHONEPG (3)
#define SUN6I_CODEC_OM_PA_CTRL_PHONENG (0)
/* Microphone, line out and phone out controls */
#define SUN6I_CODEC_MIC_CTRL (0x28)
#define SUN6I_CODEC_MIC_CTRL_HBIASEN (31)
#define SUN6I_CODEC_MIC_CTRL_MBIASEN (30)
#define SUN6I_CODEC_MIC_CTRL_MIC1AMPEN (28)
#define SUN6I_CODEC_MIC_CTRL_MIC1BOOST (25)
#define SUN6I_CODEC_MIC_CTRL_MIC2AMPEN (24)
#define SUN6I_CODEC_MIC_CTRL_MIC2BOOST (21)
#define SUN6I_CODEC_MIC_CTRL_MIC2SLT (20)
#define SUN6I_CODEC_MIC_CTRL_LINEOUTLEN (19)
#define SUN6I_CODEC_MIC_CTRL_LINEOUTREN (18)
#define SUN6I_CODEC_MIC_CTRL_LINEOUTLSRC (17)
#define SUN6I_CODEC_MIC_CTRL_LINEOUTRSRC (16)
#define SUN6I_CODEC_MIC_CTRL_LINEOUTVC (11)
#define SUN6I_CODEC_MIC_CTRL_PHONEPREG (8)
/* ADC mixer controls */
#define SUN6I_CODEC_ADC_ACTL (0x2c)
#define SUN6I_CODEC_ADC_ACTL_ADCREN (31)
#define SUN6I_CODEC_ADC_ACTL_ADCLEN (30)
#define SUN6I_CODEC_ADC_ACTL_ADCRG (27)
#define SUN6I_CODEC_ADC_ACTL_ADCLG (24)
#define SUN6I_CODEC_ADC_ACTL_RADCMIX_MIC1 (13)
#define SUN6I_CODEC_ADC_ACTL_RADCMIX_MIC2 (12)
#define SUN6I_CODEC_ADC_ACTL_RADCMIX_PHONE (11)
#define SUN6I_CODEC_ADC_ACTL_RADCMIX_PHONEP (10)
#define SUN6I_CODEC_ADC_ACTL_RADCMIX_LINEINR (9)
#define SUN6I_CODEC_ADC_ACTL_RADCMIX_OMIXR (8)
#define SUN6I_CODEC_ADC_ACTL_RADCMIX_OMIXL (7)
#define SUN6I_CODEC_ADC_ACTL_LADCMIX_MIC1 (6)
#define SUN6I_CODEC_ADC_ACTL_LADCMIX_MIC2 (5)
#define SUN6I_CODEC_ADC_ACTL_LADCMIX_PHONE (4)
#define SUN6I_CODEC_ADC_ACTL_LADCMIX_PHONEN (3)
#define SUN6I_CODEC_ADC_ACTL_LADCMIX_LINEINL (2)
#define SUN6I_CODEC_ADC_ACTL_LADCMIX_OMIXL (1)
#define SUN6I_CODEC_ADC_ACTL_LADCMIX_OMIXR (0)
/* Analog performance tuning controls */
#define SUN6I_CODEC_ADDA_TUNE (0x30)
/* Calibration controls */
#define SUN6I_CODEC_CALIBRATION (0x34)
/* FIFO counters */
#define SUN6I_CODEC_DAC_TXCNT (0x40)
#define SUN6I_CODEC_ADC_RXCNT (0x44)
/* headset jack detection and button support registers */
#define SUN6I_CODEC_HMIC_CTL (0x50)
#define SUN6I_CODEC_HMIC_DATA (0x54)
/* TODO sun6i DAP (Digital Audio Processing) bits */
/* FIFO counters moved on A23 */
#define SUN8I_A23_CODEC_DAC_TXCNT (0x1c)
#define SUN8I_A23_CODEC_ADC_RXCNT (0x20)
/* TX FIFO moved on H3 */
#define SUN8I_H3_CODEC_DAC_TXDATA (0x20)
#define SUN8I_H3_CODEC_DAC_DBG (0x48)
#define SUN8I_H3_CODEC_ADC_DBG (0x4c)
/* TODO H3 DAP (Digital Audio Processing) bits */
struct sun4i_codec {
struct device *dev;
struct regmap *regmap;
struct clk *clk_apb;
struct clk *clk_module;
struct reset_control *rst;
struct gpio_desc *gpio_pa;
/* ADC_FIFOC register is at different offset on different SoCs */
struct regmap_field *reg_adc_fifoc;
struct snd_dmaengine_dai_dma_data capture_dma_data;
struct snd_dmaengine_dai_dma_data playback_dma_data;
};
static void sun4i_codec_start_playback(struct sun4i_codec *scodec)
{
/* Flush TX FIFO */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH),
BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH));
/* Enable DAC DRQ */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN),
BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN));
}
static void sun4i_codec_stop_playback(struct sun4i_codec *scodec)
{
/* Disable DAC DRQ */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN),
0);
}
static void sun4i_codec_start_capture(struct sun4i_codec *scodec)
{
/* Enable ADC DRQ */
regmap_field_update_bits(scodec->reg_adc_fifoc,
BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN),
BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN));
}
static void sun4i_codec_stop_capture(struct sun4i_codec *scodec)
{
/* Disable ADC DRQ */
regmap_field_update_bits(scodec->reg_adc_fifoc,
BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN), 0);
}
static int sun4i_codec_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
sun4i_codec_start_playback(scodec);
else
sun4i_codec_start_capture(scodec);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
sun4i_codec_stop_playback(scodec);
else
sun4i_codec_stop_capture(scodec);
break;
default:
return -EINVAL;
}
return 0;
}
static int sun4i_codec_prepare_capture(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
/* Flush RX FIFO */
regmap_field_update_bits(scodec->reg_adc_fifoc,
BIT(SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH),
BIT(SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH));
/* Set RX FIFO trigger level */
regmap_field_update_bits(scodec->reg_adc_fifoc,
0xf << SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL,
0x7 << SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL);
/*
* FIXME: Undocumented in the datasheet, but
* Allwinner's code mentions that it is related
* related to microphone gain
*/
if (of_device_is_compatible(scodec->dev->of_node,
"allwinner,sun4i-a10-codec") ||
of_device_is_compatible(scodec->dev->of_node,
"allwinner,sun7i-a20-codec")) {
regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_ACTL,
0x3 << 25,
0x1 << 25);
}
if (of_device_is_compatible(scodec->dev->of_node,
"allwinner,sun7i-a20-codec"))
/* FIXME: Undocumented bits */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_TUNE,
0x3 << 8,
0x1 << 8);
return 0;
}
static int sun4i_codec_prepare_playback(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
u32 val;
/* Flush the TX FIFO */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH),
BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH));
/* Set TX FIFO Empty Trigger Level */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
0x3f << SUN4I_CODEC_DAC_FIFOC_TX_TRIG_LEVEL,
0xf << SUN4I_CODEC_DAC_FIFOC_TX_TRIG_LEVEL);
if (substream->runtime->rate > 32000)
/* Use 64 bits FIR filter */
val = 0;
else
/* Use 32 bits FIR filter */
val = BIT(SUN4I_CODEC_DAC_FIFOC_FIR_VERSION);
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_FIR_VERSION),
val);
/* Send zeros when we have an underrun */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_SEND_LASAT),
0);
return 0;
};
static int sun4i_codec_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return sun4i_codec_prepare_playback(substream, dai);
return sun4i_codec_prepare_capture(substream, dai);
}
static unsigned long sun4i_codec_get_mod_freq(struct snd_pcm_hw_params *params)
{
unsigned int rate = params_rate(params);
switch (rate) {
case 176400:
case 88200:
case 44100:
case 33075:
case 22050:
case 14700:
case 11025:
case 7350:
return 22579200;
case 192000:
case 96000:
case 48000:
case 32000:
case 24000:
case 16000:
case 12000:
case 8000:
return 24576000;
default:
return 0;
}
}
static int sun4i_codec_get_hw_rate(struct snd_pcm_hw_params *params)
{
unsigned int rate = params_rate(params);
switch (rate) {
case 192000:
case 176400:
return 6;
case 96000:
case 88200:
return 7;
case 48000:
case 44100:
return 0;
case 32000:
case 33075:
return 1;
case 24000:
case 22050:
return 2;
case 16000:
case 14700:
return 3;
case 12000:
case 11025:
return 4;
case 8000:
case 7350:
return 5;
default:
return -EINVAL;
}
}
static int sun4i_codec_hw_params_capture(struct sun4i_codec *scodec,
struct snd_pcm_hw_params *params,
unsigned int hwrate)
{
/* Set ADC sample rate */
regmap_field_update_bits(scodec->reg_adc_fifoc,
7 << SUN4I_CODEC_ADC_FIFOC_ADC_FS,
hwrate << SUN4I_CODEC_ADC_FIFOC_ADC_FS);
/* Set the number of channels we want to use */
if (params_channels(params) == 1)
regmap_field_update_bits(scodec->reg_adc_fifoc,
BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN),
BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN));
else
regmap_field_update_bits(scodec->reg_adc_fifoc,
BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN),
0);
/* Set the number of sample bits to either 16 or 24 bits */
if (hw_param_interval(params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min == 32) {
regmap_field_update_bits(scodec->reg_adc_fifoc,
BIT(SUN4I_CODEC_ADC_FIFOC_RX_SAMPLE_BITS),
BIT(SUN4I_CODEC_ADC_FIFOC_RX_SAMPLE_BITS));
regmap_field_update_bits(scodec->reg_adc_fifoc,
BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE),
0);
scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
} else {
regmap_field_update_bits(scodec->reg_adc_fifoc,
BIT(SUN4I_CODEC_ADC_FIFOC_RX_SAMPLE_BITS),
0);
/* Fill most significant bits with valid data MSB */
regmap_field_update_bits(scodec->reg_adc_fifoc,
BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE),
BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE));
scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
}
return 0;
}
static int sun4i_codec_hw_params_playback(struct sun4i_codec *scodec,
struct snd_pcm_hw_params *params,
unsigned int hwrate)
{
u32 val;
/* Set DAC sample rate */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
7 << SUN4I_CODEC_DAC_FIFOC_DAC_FS,
hwrate << SUN4I_CODEC_DAC_FIFOC_DAC_FS);
/* Set the number of channels we want to use */
if (params_channels(params) == 1)
val = BIT(SUN4I_CODEC_DAC_FIFOC_MONO_EN);
else
val = 0;
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_MONO_EN),
val);
/* Set the number of sample bits to either 16 or 24 bits */
if (hw_param_interval(params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min == 32) {
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS),
BIT(SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS));
/* Set TX FIFO mode to padding the LSBs with 0 */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE),
0);
scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
} else {
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS),
0);
/* Set TX FIFO mode to repeat the MSB */
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
BIT(SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE),
BIT(SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE));
scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
}
return 0;
}
static int sun4i_codec_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
unsigned long clk_freq;
int ret, hwrate;
clk_freq = sun4i_codec_get_mod_freq(params);
if (!clk_freq)
return -EINVAL;
ret = clk_set_rate(scodec->clk_module, clk_freq);
if (ret)
return ret;
hwrate = sun4i_codec_get_hw_rate(params);
if (hwrate < 0)
return hwrate;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return sun4i_codec_hw_params_playback(scodec, params,
hwrate);
return sun4i_codec_hw_params_capture(scodec, params,
hwrate);
}
static unsigned int sun4i_codec_src_rates[] = {
8000, 11025, 12000, 16000, 22050, 24000, 32000,
44100, 48000, 96000, 192000
};
static struct snd_pcm_hw_constraint_list sun4i_codec_constraints = {
.count = ARRAY_SIZE(sun4i_codec_src_rates),
.list = sun4i_codec_src_rates,
};
static int sun4i_codec_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &sun4i_codec_constraints);
/*
* Stop issuing DRQ when we have room for less than 16 samples
* in our TX FIFO
*/
regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
3 << SUN4I_CODEC_DAC_FIFOC_DRQ_CLR_CNT,
3 << SUN4I_CODEC_DAC_FIFOC_DRQ_CLR_CNT);
return clk_prepare_enable(scodec->clk_module);
}
static void sun4i_codec_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
clk_disable_unprepare(scodec->clk_module);
}
static const struct snd_soc_dai_ops sun4i_codec_dai_ops = {
.startup = sun4i_codec_startup,
.shutdown = sun4i_codec_shutdown,
.trigger = sun4i_codec_trigger,
.hw_params = sun4i_codec_hw_params,
.prepare = sun4i_codec_prepare,
};
static struct snd_soc_dai_driver sun4i_codec_dai = {
.name = "Codec",
.ops = &sun4i_codec_dai_ops,
.playback = {
.stream_name = "Codec Playback",
.channels_min = 1,
.channels_max = 2,
.rate_min = 8000,
.rate_max = 192000,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE,
.sig_bits = 24,
},
.capture = {
.stream_name = "Codec Capture",
.channels_min = 1,
.channels_max = 2,
.rate_min = 8000,
.rate_max = 48000,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE,
.sig_bits = 24,
},
};
/*** sun4i Codec ***/
static const struct snd_kcontrol_new sun4i_codec_pa_mute =
SOC_DAPM_SINGLE("Switch", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_PA_MUTE, 1, 0);
static DECLARE_TLV_DB_SCALE(sun4i_codec_pa_volume_scale, -6300, 100, 1);
static const struct snd_kcontrol_new sun4i_codec_controls[] = {
SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_PA_VOL, 0x3F, 0,
sun4i_codec_pa_volume_scale),
};
static const struct snd_kcontrol_new sun4i_codec_left_mixer_controls[] = {
SOC_DAPM_SINGLE("Left DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_LDACLMIXS, 1, 0),
};
static const struct snd_kcontrol_new sun4i_codec_right_mixer_controls[] = {
SOC_DAPM_SINGLE("Right DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_RDACRMIXS, 1, 0),
SOC_DAPM_SINGLE("Left DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_LDACRMIXS, 1, 0),
};
static const struct snd_kcontrol_new sun4i_codec_pa_mixer_controls[] = {
SOC_DAPM_SINGLE("DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_DACPAS, 1, 0),
SOC_DAPM_SINGLE("Mixer Playback Switch", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_MIXPAS, 1, 0),
};
static const struct snd_soc_dapm_widget sun4i_codec_codec_dapm_widgets[] = {
/* Digital parts of the ADCs */
SND_SOC_DAPM_SUPPLY("ADC", SUN4I_CODEC_ADC_FIFOC,
SUN4I_CODEC_ADC_FIFOC_EN_AD, 0,
NULL, 0),
/* Digital parts of the DACs */
SND_SOC_DAPM_SUPPLY("DAC", SUN4I_CODEC_DAC_DPC,
SUN4I_CODEC_DAC_DPC_EN_DA, 0,
NULL, 0),
/* Analog parts of the ADCs */
SND_SOC_DAPM_ADC("Left ADC", "Codec Capture", SUN4I_CODEC_ADC_ACTL,
SUN4I_CODEC_ADC_ACTL_ADC_L_EN, 0),
SND_SOC_DAPM_ADC("Right ADC", "Codec Capture", SUN4I_CODEC_ADC_ACTL,
SUN4I_CODEC_ADC_ACTL_ADC_R_EN, 0),
/* Analog parts of the DACs */
SND_SOC_DAPM_DAC("Left DAC", "Codec Playback", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_DACAENL, 0),
SND_SOC_DAPM_DAC("Right DAC", "Codec Playback", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_DACAENR, 0),
/* Mixers */
SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
sun4i_codec_left_mixer_controls,
ARRAY_SIZE(sun4i_codec_left_mixer_controls)),
SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
sun4i_codec_right_mixer_controls,
ARRAY_SIZE(sun4i_codec_right_mixer_controls)),
/* Global Mixer Enable */
SND_SOC_DAPM_SUPPLY("Mixer Enable", SUN4I_CODEC_DAC_ACTL,
SUN4I_CODEC_DAC_ACTL_MIXEN, 0, NULL, 0),
/* VMIC */
SND_SOC_DAPM_SUPPLY("VMIC", SUN4I_CODEC_ADC_ACTL,
SUN4I_CODEC_ADC_ACTL_VMICEN, 0, NULL, 0),
/* Mic Pre-Amplifiers */
SND_SOC_DAPM_PGA("MIC1 Pre-Amplifier", SUN4I_CODEC_ADC_ACTL,
SUN4I_CODEC_ADC_ACTL_PREG1EN, 0, NULL, 0),
/* Power Amplifier */
SND_SOC_DAPM_MIXER("Power Amplifier", SUN4I_CODEC_ADC_ACTL,
SUN4I_CODEC_ADC_ACTL_PA_EN, 0,
sun4i_codec_pa_mixer_controls,
ARRAY_SIZE(sun4i_codec_pa_mixer_controls)),
SND_SOC_DAPM_SWITCH("Power Amplifier Mute", SND_SOC_NOPM, 0, 0,
&sun4i_codec_pa_mute),
SND_SOC_DAPM_INPUT("Mic1"),
SND_SOC_DAPM_OUTPUT("HP Right"),
SND_SOC_DAPM_OUTPUT("HP Left"),
};
static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
/* Left ADC / DAC Routes */
{ "Left ADC", NULL, "ADC" },
{ "Left DAC", NULL, "DAC" },
/* Right ADC / DAC Routes */
{ "Right ADC", NULL, "ADC" },
{ "Right DAC", NULL, "DAC" },
/* Right Mixer Routes */
{ "Right Mixer", NULL, "Mixer Enable" },
{ "Right Mixer", "Left DAC Playback Switch", "Left DAC" },
{ "Right Mixer", "Right DAC Playback Switch", "Right DAC" },
/* Left Mixer Routes */
{ "Left Mixer", NULL, "Mixer Enable" },
{ "Left Mixer", "Left DAC Playback Switch", "Left DAC" },
/* Power Amplifier Routes */
{ "Power Amplifier", "Mixer Playback Switch", "Left Mixer" },
{ "Power Amplifier", "Mixer Playback Switch", "Right Mixer" },
{ "Power Amplifier", "DAC Playback Switch", "Left DAC" },
{ "Power Amplifier", "DAC Playback Switch", "Right DAC" },
/* Headphone Output Routes */
{ "Power Amplifier Mute", "Switch", "Power Amplifier" },
{ "HP Right", NULL, "Power Amplifier Mute" },
{ "HP Left", NULL, "Power Amplifier Mute" },
/* Mic1 Routes */
{ "Left ADC", NULL, "MIC1 Pre-Amplifier" },
{ "Right ADC", NULL, "MIC1 Pre-Amplifier" },
{ "MIC1 Pre-Amplifier", NULL, "Mic1"},
{ "Mic1", NULL, "VMIC" },
};
static const struct snd_soc_codec_driver sun4i_codec_codec = {
.component_driver = {
.controls = sun4i_codec_controls,
.num_controls = ARRAY_SIZE(sun4i_codec_controls),
.dapm_widgets = sun4i_codec_codec_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets),
.dapm_routes = sun4i_codec_codec_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(sun4i_codec_codec_dapm_routes),
},
};
/*** sun6i Codec ***/
/* mixer controls */
static const struct snd_kcontrol_new sun6i_codec_mixer_controls[] = {
SOC_DAPM_DOUBLE("DAC Playback Switch",
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACL,
SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACR, 1, 0),
SOC_DAPM_DOUBLE("DAC Reversed Playback Switch",
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACR,
SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACL, 1, 0),
SOC_DAPM_DOUBLE("Line In Playback Switch",
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LMIX_LINEINL,
SUN6I_CODEC_OM_DACA_CTRL_RMIX_LINEINR, 1, 0),
SOC_DAPM_DOUBLE("Mic1 Playback Switch",
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LMIX_MIC1,
SUN6I_CODEC_OM_DACA_CTRL_RMIX_MIC1, 1, 0),
SOC_DAPM_DOUBLE("Mic2 Playback Switch",
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LMIX_MIC2,
SUN6I_CODEC_OM_DACA_CTRL_RMIX_MIC2, 1, 0),
};
/* ADC mixer controls */
static const struct snd_kcontrol_new sun6i_codec_adc_mixer_controls[] = {
SOC_DAPM_DOUBLE("Mixer Capture Switch",
SUN6I_CODEC_ADC_ACTL,
SUN6I_CODEC_ADC_ACTL_LADCMIX_OMIXL,
SUN6I_CODEC_ADC_ACTL_RADCMIX_OMIXR, 1, 0),
SOC_DAPM_DOUBLE("Mixer Reversed Capture Switch",
SUN6I_CODEC_ADC_ACTL,
SUN6I_CODEC_ADC_ACTL_LADCMIX_OMIXR,
SUN6I_CODEC_ADC_ACTL_RADCMIX_OMIXL, 1, 0),
SOC_DAPM_DOUBLE("Line In Capture Switch",
SUN6I_CODEC_ADC_ACTL,
SUN6I_CODEC_ADC_ACTL_LADCMIX_LINEINL,
SUN6I_CODEC_ADC_ACTL_RADCMIX_LINEINR, 1, 0),
SOC_DAPM_DOUBLE("Mic1 Capture Switch",
SUN6I_CODEC_ADC_ACTL,
SUN6I_CODEC_ADC_ACTL_LADCMIX_MIC1,
SUN6I_CODEC_ADC_ACTL_RADCMIX_MIC1, 1, 0),
SOC_DAPM_DOUBLE("Mic2 Capture Switch",
SUN6I_CODEC_ADC_ACTL,
SUN6I_CODEC_ADC_ACTL_LADCMIX_MIC2,
SUN6I_CODEC_ADC_ACTL_RADCMIX_MIC2, 1, 0),
};
/* headphone controls */
static const char * const sun6i_codec_hp_src_enum_text[] = {
"DAC", "Mixer",
};
static SOC_ENUM_DOUBLE_DECL(sun6i_codec_hp_src_enum,
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LHPIS,
SUN6I_CODEC_OM_DACA_CTRL_RHPIS,
sun6i_codec_hp_src_enum_text);
static const struct snd_kcontrol_new sun6i_codec_hp_src[] = {
SOC_DAPM_ENUM("Headphone Source Playback Route",
sun6i_codec_hp_src_enum),
};
/* microphone controls */
static const char * const sun6i_codec_mic2_src_enum_text[] = {
"Mic2", "Mic3",
};
static SOC_ENUM_SINGLE_DECL(sun6i_codec_mic2_src_enum,
SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_MIC2SLT,
sun6i_codec_mic2_src_enum_text);
static const struct snd_kcontrol_new sun6i_codec_mic2_src[] = {
SOC_DAPM_ENUM("Mic2 Amplifier Source Route",
sun6i_codec_mic2_src_enum),
};
/* line out controls */
static const char * const sun6i_codec_lineout_src_enum_text[] = {
"Stereo", "Mono Differential",
};
static SOC_ENUM_DOUBLE_DECL(sun6i_codec_lineout_src_enum,
SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_LINEOUTLSRC,
SUN6I_CODEC_MIC_CTRL_LINEOUTRSRC,
sun6i_codec_lineout_src_enum_text);
static const struct snd_kcontrol_new sun6i_codec_lineout_src[] = {
SOC_DAPM_ENUM("Line Out Source Playback Route",
sun6i_codec_lineout_src_enum),
};
/* volume / mute controls */
static const DECLARE_TLV_DB_SCALE(sun6i_codec_dvol_scale, -7308, 116, 0);
static const DECLARE_TLV_DB_SCALE(sun6i_codec_hp_vol_scale, -6300, 100, 1);
static const DECLARE_TLV_DB_SCALE(sun6i_codec_out_mixer_pregain_scale,
-450, 150, 0);
static const DECLARE_TLV_DB_RANGE(sun6i_codec_lineout_vol_scale,
0, 1, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
2, 31, TLV_DB_SCALE_ITEM(-4350, 150, 0),
);
static const DECLARE_TLV_DB_RANGE(sun6i_codec_mic_gain_scale,
0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
1, 7, TLV_DB_SCALE_ITEM(2400, 300, 0),
);
static const struct snd_kcontrol_new sun6i_codec_codec_widgets[] = {
SOC_SINGLE_TLV("DAC Playback Volume", SUN4I_CODEC_DAC_DPC,
SUN4I_CODEC_DAC_DPC_DVOL, 0x3f, 1,
sun6i_codec_dvol_scale),
SOC_SINGLE_TLV("Headphone Playback Volume",
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_HPVOL, 0x3f, 0,
sun6i_codec_hp_vol_scale),
SOC_SINGLE_TLV("Line Out Playback Volume",
SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_LINEOUTVC, 0x1f, 0,
sun6i_codec_lineout_vol_scale),
SOC_DOUBLE("Headphone Playback Switch",
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LHPPAMUTE,
SUN6I_CODEC_OM_DACA_CTRL_RHPPAMUTE, 1, 0),
SOC_DOUBLE("Line Out Playback Switch",
SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_LINEOUTLEN,
SUN6I_CODEC_MIC_CTRL_LINEOUTREN, 1, 0),
/* Mixer pre-gains */
SOC_SINGLE_TLV("Line In Playback Volume",
SUN6I_CODEC_OM_PA_CTRL, SUN6I_CODEC_OM_PA_CTRL_LINEING,
0x7, 0, sun6i_codec_out_mixer_pregain_scale),
SOC_SINGLE_TLV("Mic1 Playback Volume",
SUN6I_CODEC_OM_PA_CTRL, SUN6I_CODEC_OM_PA_CTRL_MIC1G,
0x7, 0, sun6i_codec_out_mixer_pregain_scale),
SOC_SINGLE_TLV("Mic2 Playback Volume",
SUN6I_CODEC_OM_PA_CTRL, SUN6I_CODEC_OM_PA_CTRL_MIC2G,
0x7, 0, sun6i_codec_out_mixer_pregain_scale),
/* Microphone Amp boost gains */
SOC_SINGLE_TLV("Mic1 Boost Volume", SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_MIC1BOOST, 0x7, 0,
sun6i_codec_mic_gain_scale),
SOC_SINGLE_TLV("Mic2 Boost Volume", SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_MIC2BOOST, 0x7, 0,
sun6i_codec_mic_gain_scale),
SOC_DOUBLE_TLV("ADC Capture Volume",
SUN6I_CODEC_ADC_ACTL, SUN6I_CODEC_ADC_ACTL_ADCLG,
SUN6I_CODEC_ADC_ACTL_ADCRG, 0x7, 0,
sun6i_codec_out_mixer_pregain_scale),
};
static const struct snd_soc_dapm_widget sun6i_codec_codec_dapm_widgets[] = {
/* Microphone inputs */
SND_SOC_DAPM_INPUT("MIC1"),
SND_SOC_DAPM_INPUT("MIC2"),
SND_SOC_DAPM_INPUT("MIC3"),
/* Microphone Bias */
SND_SOC_DAPM_SUPPLY("HBIAS", SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_HBIASEN, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("MBIAS", SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_MBIASEN, 0, NULL, 0),
/* Mic input path */
SND_SOC_DAPM_MUX("Mic2 Amplifier Source Route",
SND_SOC_NOPM, 0, 0, sun6i_codec_mic2_src),
SND_SOC_DAPM_PGA("Mic1 Amplifier", SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_MIC1AMPEN, 0, NULL, 0),
SND_SOC_DAPM_PGA("Mic2 Amplifier", SUN6I_CODEC_MIC_CTRL,
SUN6I_CODEC_MIC_CTRL_MIC2AMPEN, 0, NULL, 0),
/* Line In */
SND_SOC_DAPM_INPUT("LINEIN"),
/* Digital parts of the ADCs */
SND_SOC_DAPM_SUPPLY("ADC Enable", SUN6I_CODEC_ADC_FIFOC,
SUN6I_CODEC_ADC_FIFOC_EN_AD, 0,
NULL, 0),
/* Analog parts of the ADCs */
SND_SOC_DAPM_ADC("Left ADC", "Codec Capture", SUN6I_CODEC_ADC_ACTL,
SUN6I_CODEC_ADC_ACTL_ADCLEN, 0),
SND_SOC_DAPM_ADC("Right ADC", "Codec Capture", SUN6I_CODEC_ADC_ACTL,
SUN6I_CODEC_ADC_ACTL_ADCREN, 0),
/* ADC Mixers */
SOC_MIXER_ARRAY("Left ADC Mixer", SND_SOC_NOPM, 0, 0,
sun6i_codec_adc_mixer_controls),
SOC_MIXER_ARRAY("Right ADC Mixer", SND_SOC_NOPM, 0, 0,
sun6i_codec_adc_mixer_controls),
/* Digital parts of the DACs */
SND_SOC_DAPM_SUPPLY("DAC Enable", SUN4I_CODEC_DAC_DPC,
SUN4I_CODEC_DAC_DPC_EN_DA, 0,
NULL, 0),
/* Analog parts of the DACs */
SND_SOC_DAPM_DAC("Left DAC", "Codec Playback",
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_DACALEN, 0),
SND_SOC_DAPM_DAC("Right DAC", "Codec Playback",
SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_DACAREN, 0),
/* Mixers */
SOC_MIXER_ARRAY("Left Mixer", SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_LMIXEN, 0,
sun6i_codec_mixer_controls),
SOC_MIXER_ARRAY("Right Mixer", SUN6I_CODEC_OM_DACA_CTRL,
SUN6I_CODEC_OM_DACA_CTRL_RMIXEN, 0,
sun6i_codec_mixer_controls),
/* Headphone output path */
SND_SOC_DAPM_MUX("Headphone Source Playback Route",
SND_SOC_NOPM, 0, 0, sun6i_codec_hp_src),
SND_SOC_DAPM_OUT_DRV("Headphone Amp", SUN6I_CODEC_OM_PA_CTRL,
SUN6I_CODEC_OM_PA_CTRL_HPPAEN, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("HPCOM Protection", SUN6I_CODEC_OM_PA_CTRL,
SUN6I_CODEC_OM_PA_CTRL_COMPTEN, 0, NULL, 0),
SND_SOC_DAPM_REG(snd_soc_dapm_supply, "HPCOM", SUN6I_CODEC_OM_PA_CTRL,
SUN6I_CODEC_OM_PA_CTRL_HPCOM_CTL, 0x3, 0x3, 0),
SND_SOC_DAPM_OUTPUT("HP"),
/* Line Out path */
SND_SOC_DAPM_MUX("Line Out Source Playback Route",
SND_SOC_NOPM, 0, 0, sun6i_codec_lineout_src),
SND_SOC_DAPM_OUTPUT("LINEOUT"),
};
static const struct snd_soc_dapm_route sun6i_codec_codec_dapm_routes[] = {
/* DAC Routes */
{ "Left DAC", NULL, "DAC Enable" },
{ "Right DAC", NULL, "DAC Enable" },
/* Microphone Routes */
{ "Mic1 Amplifier", NULL, "MIC1"},
{ "Mic2 Amplifier Source Route", "Mic2", "MIC2" },
{ "Mic2 Amplifier Source Route", "Mic3", "MIC3" },
{ "Mic2 Amplifier", NULL, "Mic2 Amplifier Source Route"},
/* Left Mixer Routes */
{ "Left Mixer", "DAC Playback Switch", "Left DAC" },
{ "Left Mixer", "DAC Reversed Playback Switch", "Right DAC" },
{ "Left Mixer", "Line In Playback Switch", "LINEIN" },
{ "Left Mixer", "Mic1 Playback Switch", "Mic1 Amplifier" },
{ "Left Mixer", "Mic2 Playback Switch", "Mic2 Amplifier" },
/* Right Mixer Routes */
{ "Right Mixer", "DAC Playback Switch", "Right DAC" },
{ "Right Mixer", "DAC Reversed Playback Switch", "Left DAC" },
{ "Right Mixer", "Line In Playback Switch", "LINEIN" },
{ "Right Mixer", "Mic1 Playback Switch", "Mic1 Amplifier" },
{ "Right Mixer", "Mic2 Playback Switch", "Mic2 Amplifier" },
/* Left ADC Mixer Routes */
{ "Left ADC Mixer", "Mixer Capture Switch", "Left Mixer" },
{ "Left ADC Mixer", "Mixer Reversed Capture Switch", "Right Mixer" },
{ "Left ADC Mixer", "Line In Capture Switch", "LINEIN" },
{ "Left ADC Mixer", "Mic1 Capture Switch", "Mic1 Amplifier" },
{ "Left ADC Mixer", "Mic2 Capture Switch", "Mic2 Amplifier" },
/* Right ADC Mixer Routes */
{ "Right ADC Mixer", "Mixer Capture Switch", "Right Mixer" },
{ "Right ADC Mixer", "Mixer Reversed Capture Switch", "Left Mixer" },
{ "Right ADC Mixer", "Line In Capture Switch", "LINEIN" },
{ "Right ADC Mixer", "Mic1 Capture Switch", "Mic1 Amplifier" },
{ "Right ADC Mixer", "Mic2 Capture Switch", "Mic2 Amplifier" },
/* Headphone Routes */
{ "Headphone Source Playback Route", "DAC", "Left DAC" },
{ "Headphone Source Playback Route", "DAC", "Right DAC" },
{ "Headphone Source Playback Route", "Mixer", "Left Mixer" },
{ "Headphone Source Playback Route", "Mixer", "Right Mixer" },
{ "Headphone Amp", NULL, "Headphone Source Playback Route" },
{ "HP", NULL, "Headphone Amp" },
{ "HPCOM", NULL, "HPCOM Protection" },
/* Line Out Routes */
{ "Line Out Source Playback Route", "Stereo", "Left Mixer" },
{ "Line Out Source Playback Route", "Stereo", "Right Mixer" },
{ "Line Out Source Playback Route", "Mono Differential", "Left Mixer" },
{ "Line Out Source Playback Route", "Mono Differential", "Right Mixer" },
{ "LINEOUT", NULL, "Line Out Source Playback Route" },
/* ADC Routes */
{ "Left ADC", NULL, "ADC Enable" },
{ "Right ADC", NULL, "ADC Enable" },
{ "Left ADC", NULL, "Left ADC Mixer" },
{ "Right ADC", NULL, "Right ADC Mixer" },
};
static const struct snd_soc_codec_driver sun6i_codec_codec = {
.component_driver = {
.controls = sun6i_codec_codec_widgets,
.num_controls = ARRAY_SIZE(sun6i_codec_codec_widgets),
.dapm_widgets = sun6i_codec_codec_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(sun6i_codec_codec_dapm_widgets),
.dapm_routes = sun6i_codec_codec_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(sun6i_codec_codec_dapm_routes),
},
};
/* sun8i A23 codec */
static const struct snd_kcontrol_new sun8i_a23_codec_codec_controls[] = {
SOC_SINGLE_TLV("DAC Playback Volume", SUN4I_CODEC_DAC_DPC,
SUN4I_CODEC_DAC_DPC_DVOL, 0x3f, 1,
sun6i_codec_dvol_scale),
};
static const struct snd_soc_dapm_widget sun8i_a23_codec_codec_widgets[] = {
/* Digital parts of the ADCs */
SND_SOC_DAPM_SUPPLY("ADC Enable", SUN6I_CODEC_ADC_FIFOC,
SUN6I_CODEC_ADC_FIFOC_EN_AD, 0, NULL, 0),
/* Digital parts of the DACs */
SND_SOC_DAPM_SUPPLY("DAC Enable", SUN4I_CODEC_DAC_DPC,
SUN4I_CODEC_DAC_DPC_EN_DA, 0, NULL, 0),
};
static const struct snd_soc_codec_driver sun8i_a23_codec_codec = {
.component_driver = {
.controls = sun8i_a23_codec_codec_controls,
.num_controls = ARRAY_SIZE(sun8i_a23_codec_codec_controls),
.dapm_widgets = sun8i_a23_codec_codec_widgets,
.num_dapm_widgets = ARRAY_SIZE(sun8i_a23_codec_codec_widgets),
},
};
static const struct snd_soc_component_driver sun4i_codec_component = {
.name = "sun4i-codec",
};
#define SUN4I_CODEC_RATES SNDRV_PCM_RATE_CONTINUOUS
#define SUN4I_CODEC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S32_LE)
static int sun4i_codec_dai_probe(struct snd_soc_dai *dai)
{
struct snd_soc_card *card = snd_soc_dai_get_drvdata(dai);
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(card);
snd_soc_dai_init_dma_data(dai, &scodec->playback_dma_data,
&scodec->capture_dma_data);
return 0;
}
static struct snd_soc_dai_driver dummy_cpu_dai = {
.name = "sun4i-codec-cpu-dai",
.probe = sun4i_codec_dai_probe,
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SUN4I_CODEC_RATES,
.formats = SUN4I_CODEC_FORMATS,
.sig_bits = 24,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = SUN4I_CODEC_RATES,
.formats = SUN4I_CODEC_FORMATS,
.sig_bits = 24,
},
};
static struct snd_soc_dai_link *sun4i_codec_create_link(struct device *dev,
int *num_links)
{
struct snd_soc_dai_link *link = devm_kzalloc(dev, sizeof(*link),
GFP_KERNEL);
if (!link)
return NULL;
link->name = "cdc";
link->stream_name = "CDC PCM";
link->codec_dai_name = "Codec";
link->cpu_dai_name = dev_name(dev);
link->codec_name = dev_name(dev);
link->platform_name = dev_name(dev);
link->dai_fmt = SND_SOC_DAIFMT_I2S;
*num_links = 1;
return link;
};
static int sun4i_codec_spk_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(w->dapm->card);
gpiod_set_value_cansleep(scodec->gpio_pa,
!!SND_SOC_DAPM_EVENT_ON(event));
return 0;
}
static const struct snd_soc_dapm_widget sun4i_codec_card_dapm_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", sun4i_codec_spk_event),
};
static const struct snd_soc_dapm_route sun4i_codec_card_dapm_routes[] = {
{ "Speaker", NULL, "HP Right" },
{ "Speaker", NULL, "HP Left" },
};
static struct snd_soc_card *sun4i_codec_create_card(struct device *dev)
{
struct snd_soc_card *card;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return ERR_PTR(-ENOMEM);
card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
if (!card->dai_link)
return ERR_PTR(-ENOMEM);
card->dev = dev;
card->name = "sun4i-codec";
card->dapm_widgets = sun4i_codec_card_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sun4i_codec_card_dapm_widgets);
card->dapm_routes = sun4i_codec_card_dapm_routes;
card->num_dapm_routes = ARRAY_SIZE(sun4i_codec_card_dapm_routes);
return card;
};
static const struct snd_soc_dapm_widget sun6i_codec_card_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_LINE("Line In", NULL),
SND_SOC_DAPM_LINE("Line Out", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Mic", NULL),
SND_SOC_DAPM_SPK("Speaker", sun4i_codec_spk_event),
};
static struct snd_soc_card *sun6i_codec_create_card(struct device *dev)
{
struct snd_soc_card *card;
int ret;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return ERR_PTR(-ENOMEM);
card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
if (!card->dai_link)
return ERR_PTR(-ENOMEM);
card->dev = dev;
card->name = "A31 Audio Codec";
card->dapm_widgets = sun6i_codec_card_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sun6i_codec_card_dapm_widgets);
card->fully_routed = true;
ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
if (ret)
dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
return card;
};
/* Connect digital side enables to analog side widgets */
static const struct snd_soc_dapm_route sun8i_codec_card_routes[] = {
/* ADC Routes */
{ "Left ADC", NULL, "ADC Enable" },
{ "Right ADC", NULL, "ADC Enable" },
{ "Codec Capture", NULL, "Left ADC" },
{ "Codec Capture", NULL, "Right ADC" },
/* DAC Routes */
{ "Left DAC", NULL, "DAC Enable" },
{ "Right DAC", NULL, "DAC Enable" },
{ "Left DAC", NULL, "Codec Playback" },
{ "Right DAC", NULL, "Codec Playback" },
};
static struct snd_soc_aux_dev aux_dev = {
.name = "Codec Analog Controls",
};
static struct snd_soc_card *sun8i_a23_codec_create_card(struct device *dev)
{
struct snd_soc_card *card;
int ret;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return ERR_PTR(-ENOMEM);
aux_dev.codec_of_node = of_parse_phandle(dev->of_node,
"allwinner,codec-analog-controls",
0);
if (!aux_dev.codec_of_node) {
dev_err(dev, "Can't find analog controls for codec.\n");
return ERR_PTR(-EINVAL);
};
card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
if (!card->dai_link)
return ERR_PTR(-ENOMEM);
card->dev = dev;
card->name = "A23 Audio Codec";
card->dapm_widgets = sun6i_codec_card_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sun6i_codec_card_dapm_widgets);
card->dapm_routes = sun8i_codec_card_routes;
card->num_dapm_routes = ARRAY_SIZE(sun8i_codec_card_routes);
card->aux_dev = &aux_dev;
card->num_aux_devs = 1;
card->fully_routed = true;
ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
if (ret)
dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
return card;
};
static struct snd_soc_card *sun8i_h3_codec_create_card(struct device *dev)
{
struct snd_soc_card *card;
int ret;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return ERR_PTR(-ENOMEM);
aux_dev.codec_of_node = of_parse_phandle(dev->of_node,
"allwinner,codec-analog-controls",
0);
if (!aux_dev.codec_of_node) {
dev_err(dev, "Can't find analog controls for codec.\n");
return ERR_PTR(-EINVAL);
};
card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
if (!card->dai_link)
return ERR_PTR(-ENOMEM);
card->dev = dev;
card->name = "H3 Audio Codec";
card->dapm_widgets = sun6i_codec_card_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sun6i_codec_card_dapm_widgets);
card->dapm_routes = sun8i_codec_card_routes;
card->num_dapm_routes = ARRAY_SIZE(sun8i_codec_card_routes);
card->aux_dev = &aux_dev;
card->num_aux_devs = 1;
card->fully_routed = true;
ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
if (ret)
dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
return card;
};
static struct snd_soc_card *sun8i_v3s_codec_create_card(struct device *dev)
{
struct snd_soc_card *card;
int ret;
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return ERR_PTR(-ENOMEM);
aux_dev.codec_of_node = of_parse_phandle(dev->of_node,
"allwinner,codec-analog-controls",
0);
if (!aux_dev.codec_of_node) {
dev_err(dev, "Can't find analog controls for codec.\n");
return ERR_PTR(-EINVAL);
};
card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
if (!card->dai_link)
return ERR_PTR(-ENOMEM);
card->dev = dev;
card->name = "V3s Audio Codec";
card->dapm_widgets = sun6i_codec_card_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sun6i_codec_card_dapm_widgets);
card->dapm_routes = sun8i_codec_card_routes;
card->num_dapm_routes = ARRAY_SIZE(sun8i_codec_card_routes);
card->aux_dev = &aux_dev;
card->num_aux_devs = 1;
card->fully_routed = true;
ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
if (ret)
dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
return card;
};
static const struct regmap_config sun4i_codec_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = SUN4I_CODEC_ADC_RXCNT,
};
static const struct regmap_config sun6i_codec_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = SUN6I_CODEC_HMIC_DATA,
};
static const struct regmap_config sun7i_codec_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = SUN7I_CODEC_AC_MIC_PHONE_CAL,
};
static const struct regmap_config sun8i_a23_codec_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = SUN8I_A23_CODEC_ADC_RXCNT,
};
static const struct regmap_config sun8i_h3_codec_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = SUN8I_H3_CODEC_ADC_DBG,
};
static const struct regmap_config sun8i_v3s_codec_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = SUN8I_H3_CODEC_ADC_DBG,
};
struct sun4i_codec_quirks {
const struct regmap_config *regmap_config;
const struct snd_soc_codec_driver *codec;
struct snd_soc_card * (*create_card)(struct device *dev);
struct reg_field reg_adc_fifoc; /* used for regmap_field */
unsigned int reg_dac_txdata; /* TX FIFO offset for DMA config */
unsigned int reg_adc_rxdata; /* RX FIFO offset for DMA config */
bool has_reset;
};
static const struct sun4i_codec_quirks sun4i_codec_quirks = {
.regmap_config = &sun4i_codec_regmap_config,
.codec = &sun4i_codec_codec,
.create_card = sun4i_codec_create_card,
.reg_adc_fifoc = REG_FIELD(SUN4I_CODEC_ADC_FIFOC, 0, 31),
.reg_dac_txdata = SUN4I_CODEC_DAC_TXDATA,
.reg_adc_rxdata = SUN4I_CODEC_ADC_RXDATA,
};
static const struct sun4i_codec_quirks sun6i_a31_codec_quirks = {
.regmap_config = &sun6i_codec_regmap_config,
.codec = &sun6i_codec_codec,
.create_card = sun6i_codec_create_card,
.reg_adc_fifoc = REG_FIELD(SUN6I_CODEC_ADC_FIFOC, 0, 31),
.reg_dac_txdata = SUN4I_CODEC_DAC_TXDATA,
.reg_adc_rxdata = SUN6I_CODEC_ADC_RXDATA,
.has_reset = true,
};
static const struct sun4i_codec_quirks sun7i_codec_quirks = {
.regmap_config = &sun7i_codec_regmap_config,
.codec = &sun4i_codec_codec,
.create_card = sun4i_codec_create_card,
.reg_adc_fifoc = REG_FIELD(SUN4I_CODEC_ADC_FIFOC, 0, 31),
.reg_dac_txdata = SUN4I_CODEC_DAC_TXDATA,
.reg_adc_rxdata = SUN4I_CODEC_ADC_RXDATA,
};
static const struct sun4i_codec_quirks sun8i_a23_codec_quirks = {
.regmap_config = &sun8i_a23_codec_regmap_config,
.codec = &sun8i_a23_codec_codec,
.create_card = sun8i_a23_codec_create_card,
.reg_adc_fifoc = REG_FIELD(SUN6I_CODEC_ADC_FIFOC, 0, 31),
.reg_dac_txdata = SUN4I_CODEC_DAC_TXDATA,
.reg_adc_rxdata = SUN6I_CODEC_ADC_RXDATA,
.has_reset = true,
};
static const struct sun4i_codec_quirks sun8i_h3_codec_quirks = {
.regmap_config = &sun8i_h3_codec_regmap_config,
/*
* TODO Share the codec structure with A23 for now.
* This should be split out when adding digital audio
* processing support for the H3.
*/
.codec = &sun8i_a23_codec_codec,
.create_card = sun8i_h3_codec_create_card,
.reg_adc_fifoc = REG_FIELD(SUN6I_CODEC_ADC_FIFOC, 0, 31),
.reg_dac_txdata = SUN8I_H3_CODEC_DAC_TXDATA,
.reg_adc_rxdata = SUN6I_CODEC_ADC_RXDATA,
.has_reset = true,
};
static const struct sun4i_codec_quirks sun8i_v3s_codec_quirks = {
.regmap_config = &sun8i_v3s_codec_regmap_config,
/*
* TODO The codec structure should be split out, like
* H3, when adding digital audio processing support.
*/
.codec = &sun8i_a23_codec_codec,
.create_card = sun8i_v3s_codec_create_card,
.reg_adc_fifoc = REG_FIELD(SUN6I_CODEC_ADC_FIFOC, 0, 31),
.reg_dac_txdata = SUN8I_H3_CODEC_DAC_TXDATA,
.reg_adc_rxdata = SUN6I_CODEC_ADC_RXDATA,
.has_reset = true,
};
static const struct of_device_id sun4i_codec_of_match[] = {
{
.compatible = "allwinner,sun4i-a10-codec",
.data = &sun4i_codec_quirks,
},
{
.compatible = "allwinner,sun6i-a31-codec",
.data = &sun6i_a31_codec_quirks,
},
{
.compatible = "allwinner,sun7i-a20-codec",
.data = &sun7i_codec_quirks,
},
{
.compatible = "allwinner,sun8i-a23-codec",
.data = &sun8i_a23_codec_quirks,
},
{
.compatible = "allwinner,sun8i-h3-codec",
.data = &sun8i_h3_codec_quirks,
},
{
.compatible = "allwinner,sun8i-v3s-codec",
.data = &sun8i_v3s_codec_quirks,
},
{}
};
MODULE_DEVICE_TABLE(of, sun4i_codec_of_match);
static int sun4i_codec_probe(struct platform_device *pdev)
{
struct snd_soc_card *card;
struct sun4i_codec *scodec;
const struct sun4i_codec_quirks *quirks;
struct resource *res;
void __iomem *base;
int ret;
scodec = devm_kzalloc(&pdev->dev, sizeof(*scodec), GFP_KERNEL);
if (!scodec)
return -ENOMEM;
scodec->dev = &pdev->dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base)) {
dev_err(&pdev->dev, "Failed to map the registers\n");
return PTR_ERR(base);
}
quirks = of_device_get_match_data(&pdev->dev);
if (quirks == NULL) {
dev_err(&pdev->dev, "Failed to determine the quirks to use\n");
return -ENODEV;
}
scodec->regmap = devm_regmap_init_mmio(&pdev->dev, base,
quirks->regmap_config);
if (IS_ERR(scodec->regmap)) {
dev_err(&pdev->dev, "Failed to create our regmap\n");
return PTR_ERR(scodec->regmap);
}
/* Get the clocks from the DT */
scodec->clk_apb = devm_clk_get(&pdev->dev, "apb");
if (IS_ERR(scodec->clk_apb)) {
dev_err(&pdev->dev, "Failed to get the APB clock\n");
return PTR_ERR(scodec->clk_apb);
}
scodec->clk_module = devm_clk_get(&pdev->dev, "codec");
if (IS_ERR(scodec->clk_module)) {
dev_err(&pdev->dev, "Failed to get the module clock\n");
return PTR_ERR(scodec->clk_module);
}
if (quirks->has_reset) {
scodec->rst = devm_reset_control_get_exclusive(&pdev->dev,
NULL);
if (IS_ERR(scodec->rst)) {
dev_err(&pdev->dev, "Failed to get reset control\n");
return PTR_ERR(scodec->rst);
}
}
scodec->gpio_pa = devm_gpiod_get_optional(&pdev->dev, "allwinner,pa",
GPIOD_OUT_LOW);
if (IS_ERR(scodec->gpio_pa)) {
ret = PTR_ERR(scodec->gpio_pa);
if (ret != -EPROBE_DEFER)
dev_err(&pdev->dev, "Failed to get pa gpio: %d\n", ret);
return ret;
}
/* reg_field setup */
scodec->reg_adc_fifoc = devm_regmap_field_alloc(&pdev->dev,
scodec->regmap,
quirks->reg_adc_fifoc);
if (IS_ERR(scodec->reg_adc_fifoc)) {
ret = PTR_ERR(scodec->reg_adc_fifoc);
dev_err(&pdev->dev, "Failed to create regmap fields: %d\n",
ret);
return ret;
}
/* Enable the bus clock */
if (clk_prepare_enable(scodec->clk_apb)) {
dev_err(&pdev->dev, "Failed to enable the APB clock\n");
return -EINVAL;
}
/* Deassert the reset control */
if (scodec->rst) {
ret = reset_control_deassert(scodec->rst);
if (ret) {
dev_err(&pdev->dev,
"Failed to deassert the reset control\n");
goto err_clk_disable;
}
}
/* DMA configuration for TX FIFO */
scodec->playback_dma_data.addr = res->start + quirks->reg_dac_txdata;
scodec->playback_dma_data.maxburst = 8;
scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
/* DMA configuration for RX FIFO */
scodec->capture_dma_data.addr = res->start + quirks->reg_adc_rxdata;
scodec->capture_dma_data.maxburst = 8;
scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
ret = snd_soc_register_codec(&pdev->dev, quirks->codec,
&sun4i_codec_dai, 1);
if (ret) {
dev_err(&pdev->dev, "Failed to register our codec\n");
goto err_assert_reset;
}
ret = devm_snd_soc_register_component(&pdev->dev,
&sun4i_codec_component,
&dummy_cpu_dai, 1);
if (ret) {
dev_err(&pdev->dev, "Failed to register our DAI\n");
goto err_unregister_codec;
}
ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
if (ret) {
dev_err(&pdev->dev, "Failed to register against DMAEngine\n");
goto err_unregister_codec;
}
card = quirks->create_card(&pdev->dev);
if (IS_ERR(card)) {
ret = PTR_ERR(card);
dev_err(&pdev->dev, "Failed to create our card\n");
goto err_unregister_codec;
}
snd_soc_card_set_drvdata(card, scodec);
ret = snd_soc_register_card(card);
if (ret) {
dev_err(&pdev->dev, "Failed to register our card\n");
goto err_unregister_codec;
}
return 0;
err_unregister_codec:
snd_soc_unregister_codec(&pdev->dev);
err_assert_reset:
if (scodec->rst)
reset_control_assert(scodec->rst);
err_clk_disable:
clk_disable_unprepare(scodec->clk_apb);
return ret;
}
static int sun4i_codec_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
struct sun4i_codec *scodec = snd_soc_card_get_drvdata(card);
snd_soc_unregister_card(card);
snd_soc_unregister_codec(&pdev->dev);
if (scodec->rst)
reset_control_assert(scodec->rst);
clk_disable_unprepare(scodec->clk_apb);
return 0;
}
static struct platform_driver sun4i_codec_driver = {
.driver = {
.name = "sun4i-codec",
.of_match_table = sun4i_codec_of_match,
},
.probe = sun4i_codec_probe,
.remove = sun4i_codec_remove,
};
module_platform_driver(sun4i_codec_driver);
MODULE_DESCRIPTION("Allwinner A10 codec driver");
MODULE_AUTHOR("Emilio López <emilio@elopez.com.ar>");
MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
MODULE_LICENSE("GPL");
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