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linuxdebug/sound/soc/codecs/cpcap.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0
/*
* ALSA SoC CPCAP codec driver
*
* Copyright (C) 2017 - 2018 Sebastian Reichel <sre@kernel.org>
*
* Very loosely based on original driver from Motorola:
* Copyright (C) 2007 - 2009 Motorola, Inc.
*/
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/platform_device.h>
#include <linux/mfd/motorola-cpcap.h>
#include <sound/core.h>
#include <sound/soc.h>
#include <sound/tlv.h>
/* Register 512 CPCAP_REG_VAUDIOC --- Audio Regulator and Bias Voltage */
#define CPCAP_BIT_AUDIO_LOW_PWR 6
#define CPCAP_BIT_AUD_LOWPWR_SPEED 5
#define CPCAP_BIT_VAUDIOPRISTBY 4
#define CPCAP_BIT_VAUDIO_MODE1 2
#define CPCAP_BIT_VAUDIO_MODE0 1
#define CPCAP_BIT_V_AUDIO_EN 0
/* Register 513 CPCAP_REG_CC --- CODEC */
#define CPCAP_BIT_CDC_CLK2 15
#define CPCAP_BIT_CDC_CLK1 14
#define CPCAP_BIT_CDC_CLK0 13
#define CPCAP_BIT_CDC_SR3 12
#define CPCAP_BIT_CDC_SR2 11
#define CPCAP_BIT_CDC_SR1 10
#define CPCAP_BIT_CDC_SR0 9
#define CPCAP_BIT_CDC_CLOCK_TREE_RESET 8
#define CPCAP_BIT_MIC2_CDC_EN 7
#define CPCAP_BIT_CDC_EN_RX 6
#define CPCAP_BIT_DF_RESET 5
#define CPCAP_BIT_MIC1_CDC_EN 4
#define CPCAP_BIT_AUDOHPF_1 3
#define CPCAP_BIT_AUDOHPF_0 2
#define CPCAP_BIT_AUDIHPF_1 1
#define CPCAP_BIT_AUDIHPF_0 0
/* Register 514 CPCAP_REG_CDI --- CODEC Digital Audio Interface */
#define CPCAP_BIT_CDC_PLL_SEL 15
#define CPCAP_BIT_CLK_IN_SEL 13
#define CPCAP_BIT_DIG_AUD_IN 12
#define CPCAP_BIT_CDC_CLK_EN 11
#define CPCAP_BIT_CDC_DIG_AUD_FS1 10
#define CPCAP_BIT_CDC_DIG_AUD_FS0 9
#define CPCAP_BIT_MIC2_TIMESLOT2 8
#define CPCAP_BIT_MIC2_TIMESLOT1 7
#define CPCAP_BIT_MIC2_TIMESLOT0 6
#define CPCAP_BIT_MIC1_RX_TIMESLOT2 5
#define CPCAP_BIT_MIC1_RX_TIMESLOT1 4
#define CPCAP_BIT_MIC1_RX_TIMESLOT0 3
#define CPCAP_BIT_FS_INV 2
#define CPCAP_BIT_CLK_INV 1
#define CPCAP_BIT_SMB_CDC 0
/* Register 515 CPCAP_REG_SDAC --- Stereo DAC */
#define CPCAP_BIT_FSYNC_CLK_IN_COMMON 11
#define CPCAP_BIT_SLAVE_PLL_CLK_INPUT 10
#define CPCAP_BIT_ST_CLOCK_TREE_RESET 9
#define CPCAP_BIT_DF_RESET_ST_DAC 8
#define CPCAP_BIT_ST_SR3 7
#define CPCAP_BIT_ST_SR2 6
#define CPCAP_BIT_ST_SR1 5
#define CPCAP_BIT_ST_SR0 4
#define CPCAP_BIT_ST_DAC_CLK2 3
#define CPCAP_BIT_ST_DAC_CLK1 2
#define CPCAP_BIT_ST_DAC_CLK0 1
#define CPCAP_BIT_ST_DAC_EN 0
/* Register 516 CPCAP_REG_SDACDI --- Stereo DAC Digital Audio Interface */
#define CPCAP_BIT_ST_L_TIMESLOT2 13
#define CPCAP_BIT_ST_L_TIMESLOT1 12
#define CPCAP_BIT_ST_L_TIMESLOT0 11
#define CPCAP_BIT_ST_R_TIMESLOT2 10
#define CPCAP_BIT_ST_R_TIMESLOT1 9
#define CPCAP_BIT_ST_R_TIMESLOT0 8
#define CPCAP_BIT_ST_DAC_CLK_IN_SEL 7
#define CPCAP_BIT_ST_FS_INV 6
#define CPCAP_BIT_ST_CLK_INV 5
#define CPCAP_BIT_ST_DIG_AUD_FS1 4
#define CPCAP_BIT_ST_DIG_AUD_FS0 3
#define CPCAP_BIT_DIG_AUD_IN_ST_DAC 2
#define CPCAP_BIT_ST_CLK_EN 1
#define CPCAP_BIT_SMB_ST_DAC 0
/* Register 517 CPCAP_REG_TXI --- TX Interface */
#define CPCAP_BIT_PTT_TH 15
#define CPCAP_BIT_PTT_CMP_EN 14
#define CPCAP_BIT_HS_ID_TX 13
#define CPCAP_BIT_MB_ON2 12
#define CPCAP_BIT_MB_ON1L 11
#define CPCAP_BIT_MB_ON1R 10
#define CPCAP_BIT_RX_L_ENCODE 9
#define CPCAP_BIT_RX_R_ENCODE 8
#define CPCAP_BIT_MIC2_MUX 7
#define CPCAP_BIT_MIC2_PGA_EN 6
#define CPCAP_BIT_CDET_DIS 5
#define CPCAP_BIT_EMU_MIC_MUX 4
#define CPCAP_BIT_HS_MIC_MUX 3
#define CPCAP_BIT_MIC1_MUX 2
#define CPCAP_BIT_MIC1_PGA_EN 1
#define CPCAP_BIT_DLM 0
/* Register 518 CPCAP_REG_TXMP --- Mic Gain */
#define CPCAP_BIT_MB_BIAS_R1 11
#define CPCAP_BIT_MB_BIAS_R0 10
#define CPCAP_BIT_MIC2_GAIN_4 9
#define CPCAP_BIT_MIC2_GAIN_3 8
#define CPCAP_BIT_MIC2_GAIN_2 7
#define CPCAP_BIT_MIC2_GAIN_1 6
#define CPCAP_BIT_MIC2_GAIN_0 5
#define CPCAP_BIT_MIC1_GAIN_4 4
#define CPCAP_BIT_MIC1_GAIN_3 3
#define CPCAP_BIT_MIC1_GAIN_2 2
#define CPCAP_BIT_MIC1_GAIN_1 1
#define CPCAP_BIT_MIC1_GAIN_0 0
/* Register 519 CPCAP_REG_RXOA --- RX Output Amplifier */
#define CPCAP_BIT_UNUSED_519_15 15
#define CPCAP_BIT_UNUSED_519_14 14
#define CPCAP_BIT_UNUSED_519_13 13
#define CPCAP_BIT_STDAC_LOW_PWR_DISABLE 12
#define CPCAP_BIT_HS_LOW_PWR 11
#define CPCAP_BIT_HS_ID_RX 10
#define CPCAP_BIT_ST_HS_CP_EN 9
#define CPCAP_BIT_EMU_SPKR_R_EN 8
#define CPCAP_BIT_EMU_SPKR_L_EN 7
#define CPCAP_BIT_HS_L_EN 6
#define CPCAP_BIT_HS_R_EN 5
#define CPCAP_BIT_A4_LINEOUT_L_EN 4
#define CPCAP_BIT_A4_LINEOUT_R_EN 3
#define CPCAP_BIT_A2_LDSP_L_EN 2
#define CPCAP_BIT_A2_LDSP_R_EN 1
#define CPCAP_BIT_A1_EAR_EN 0
/* Register 520 CPCAP_REG_RXVC --- RX Volume Control */
#define CPCAP_BIT_VOL_EXT3 15
#define CPCAP_BIT_VOL_EXT2 14
#define CPCAP_BIT_VOL_EXT1 13
#define CPCAP_BIT_VOL_EXT0 12
#define CPCAP_BIT_VOL_DAC3 11
#define CPCAP_BIT_VOL_DAC2 10
#define CPCAP_BIT_VOL_DAC1 9
#define CPCAP_BIT_VOL_DAC0 8
#define CPCAP_BIT_VOL_DAC_LSB_1dB1 7
#define CPCAP_BIT_VOL_DAC_LSB_1dB0 6
#define CPCAP_BIT_VOL_CDC3 5
#define CPCAP_BIT_VOL_CDC2 4
#define CPCAP_BIT_VOL_CDC1 3
#define CPCAP_BIT_VOL_CDC0 2
#define CPCAP_BIT_VOL_CDC_LSB_1dB1 1
#define CPCAP_BIT_VOL_CDC_LSB_1dB0 0
/* Register 521 CPCAP_REG_RXCOA --- Codec to Output Amp Switches */
#define CPCAP_BIT_PGA_CDC_EN 10
#define CPCAP_BIT_CDC_SW 9
#define CPCAP_BIT_PGA_OUTR_USBDP_CDC_SW 8
#define CPCAP_BIT_PGA_OUTL_USBDN_CDC_SW 7
#define CPCAP_BIT_ALEFT_HS_CDC_SW 6
#define CPCAP_BIT_ARIGHT_HS_CDC_SW 5
#define CPCAP_BIT_A4_LINEOUT_L_CDC_SW 4
#define CPCAP_BIT_A4_LINEOUT_R_CDC_SW 3
#define CPCAP_BIT_A2_LDSP_L_CDC_SW 2
#define CPCAP_BIT_A2_LDSP_R_CDC_SW 1
#define CPCAP_BIT_A1_EAR_CDC_SW 0
/* Register 522 CPCAP_REG_RXSDOA --- RX Stereo DAC to Output Amp Switches */
#define CPCAP_BIT_PGA_DAC_EN 12
#define CPCAP_BIT_ST_DAC_SW 11
#define CPCAP_BIT_MONO_DAC1 10
#define CPCAP_BIT_MONO_DAC0 9
#define CPCAP_BIT_PGA_OUTR_USBDP_DAC_SW 8
#define CPCAP_BIT_PGA_OUTL_USBDN_DAC_SW 7
#define CPCAP_BIT_ALEFT_HS_DAC_SW 6
#define CPCAP_BIT_ARIGHT_HS_DAC_SW 5
#define CPCAP_BIT_A4_LINEOUT_L_DAC_SW 4
#define CPCAP_BIT_A4_LINEOUT_R_DAC_SW 3
#define CPCAP_BIT_A2_LDSP_L_DAC_SW 2
#define CPCAP_BIT_A2_LDSP_R_DAC_SW 1
#define CPCAP_BIT_A1_EAR_DAC_SW 0
/* Register 523 CPCAP_REG_RXEPOA --- RX External PGA to Output Amp Switches */
#define CPCAP_BIT_PGA_EXT_L_EN 14
#define CPCAP_BIT_PGA_EXT_R_EN 13
#define CPCAP_BIT_PGA_IN_L_SW 12
#define CPCAP_BIT_PGA_IN_R_SW 11
#define CPCAP_BIT_MONO_EXT1 10
#define CPCAP_BIT_MONO_EXT0 9
#define CPCAP_BIT_PGA_OUTR_USBDP_EXT_SW 8
#define CPCAP_BIT_PGA_OUTL_USBDN_EXT_SW 7
#define CPCAP_BIT_ALEFT_HS_EXT_SW 6
#define CPCAP_BIT_ARIGHT_HS_EXT_SW 5
#define CPCAP_BIT_A4_LINEOUT_L_EXT_SW 4
#define CPCAP_BIT_A4_LINEOUT_R_EXT_SW 3
#define CPCAP_BIT_A2_LDSP_L_EXT_SW 2
#define CPCAP_BIT_A2_LDSP_R_EXT_SW 1
#define CPCAP_BIT_A1_EAR_EXT_SW 0
/* Register 525 CPCAP_REG_A2LA --- SPK Amplifier and Clock Config for Headset */
#define CPCAP_BIT_NCP_CLK_SYNC 7
#define CPCAP_BIT_A2_CLK_SYNC 6
#define CPCAP_BIT_A2_FREE_RUN 5
#define CPCAP_BIT_A2_CLK2 4
#define CPCAP_BIT_A2_CLK1 3
#define CPCAP_BIT_A2_CLK0 2
#define CPCAP_BIT_A2_CLK_IN 1
#define CPCAP_BIT_A2_CONFIG 0
#define SLEEP_ACTIVATE_POWER 2
#define CLOCK_TREE_RESET_TIME 1
/* constants for ST delay workaround */
#define STM_STDAC_ACTIVATE_RAMP_TIME 1
#define STM_STDAC_EN_TEST_PRE 0x090C
#define STM_STDAC_EN_TEST_POST 0x0000
#define STM_STDAC_EN_ST_TEST1_PRE 0x2400
#define STM_STDAC_EN_ST_TEST1_POST 0x0400
struct cpcap_reg_info {
u16 reg;
u16 mask;
u16 val;
};
static const struct cpcap_reg_info cpcap_default_regs[] = {
{ CPCAP_REG_VAUDIOC, 0x003F, 0x0000 },
{ CPCAP_REG_CC, 0xFFFF, 0x0000 },
{ CPCAP_REG_CC, 0xFFFF, 0x0000 },
{ CPCAP_REG_CDI, 0xBFFF, 0x0000 },
{ CPCAP_REG_SDAC, 0x0FFF, 0x0000 },
{ CPCAP_REG_SDACDI, 0x3FFF, 0x0000 },
{ CPCAP_REG_TXI, 0x0FDF, 0x0000 },
{ CPCAP_REG_TXMP, 0x0FFF, 0x0400 },
{ CPCAP_REG_RXOA, 0x01FF, 0x0000 },
{ CPCAP_REG_RXVC, 0xFF3C, 0x0000 },
{ CPCAP_REG_RXCOA, 0x07FF, 0x0000 },
{ CPCAP_REG_RXSDOA, 0x1FFF, 0x0000 },
{ CPCAP_REG_RXEPOA, 0x7FFF, 0x0000 },
{ CPCAP_REG_A2LA, BIT(CPCAP_BIT_A2_FREE_RUN),
BIT(CPCAP_BIT_A2_FREE_RUN) },
};
enum cpcap_dai {
CPCAP_DAI_HIFI,
CPCAP_DAI_VOICE,
};
struct cpcap_audio {
struct snd_soc_component *component;
struct regmap *regmap;
u16 vendor;
int codec_clk_id;
int codec_freq;
int codec_format;
};
static int cpcap_st_workaround(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
int err = 0;
/* Only CPCAP from ST requires workaround */
if (cpcap->vendor != CPCAP_VENDOR_ST)
return 0;
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
err = regmap_write(cpcap->regmap, CPCAP_REG_TEST,
STM_STDAC_EN_TEST_PRE);
if (err)
return err;
err = regmap_write(cpcap->regmap, CPCAP_REG_ST_TEST1,
STM_STDAC_EN_ST_TEST1_PRE);
break;
case SND_SOC_DAPM_POST_PMU:
msleep(STM_STDAC_ACTIVATE_RAMP_TIME);
err = regmap_write(cpcap->regmap, CPCAP_REG_ST_TEST1,
STM_STDAC_EN_ST_TEST1_POST);
if (err)
return err;
err = regmap_write(cpcap->regmap, CPCAP_REG_TEST,
STM_STDAC_EN_TEST_POST);
break;
default:
break;
}
return err;
}
/* Capture Gain Control: 0dB to 31dB in 1dB steps */
static const DECLARE_TLV_DB_SCALE(mic_gain_tlv, 0, 100, 0);
/* Playback Gain Control: -33dB to 12dB in 3dB steps */
static const DECLARE_TLV_DB_SCALE(vol_tlv, -3300, 300, 0);
static const struct snd_kcontrol_new cpcap_snd_controls[] = {
/* Playback Gain */
SOC_SINGLE_TLV("HiFi Playback Volume",
CPCAP_REG_RXVC, CPCAP_BIT_VOL_DAC0, 0xF, 0, vol_tlv),
SOC_SINGLE_TLV("Voice Playback Volume",
CPCAP_REG_RXVC, CPCAP_BIT_VOL_CDC0, 0xF, 0, vol_tlv),
SOC_SINGLE_TLV("Ext Playback Volume",
CPCAP_REG_RXVC, CPCAP_BIT_VOL_EXT0, 0xF, 0, vol_tlv),
/* Capture Gain */
SOC_SINGLE_TLV("Mic1 Capture Volume",
CPCAP_REG_TXMP, CPCAP_BIT_MIC1_GAIN_0, 0x1F, 0, mic_gain_tlv),
SOC_SINGLE_TLV("Mic2 Capture Volume",
CPCAP_REG_TXMP, CPCAP_BIT_MIC2_GAIN_0, 0x1F, 0, mic_gain_tlv),
/* Phase Invert */
SOC_SINGLE("Hifi Left Phase Invert Switch",
CPCAP_REG_RXSDOA, CPCAP_BIT_MONO_DAC0, 1, 0),
SOC_SINGLE("Ext Left Phase Invert Switch",
CPCAP_REG_RXEPOA, CPCAP_BIT_MONO_EXT0, 1, 0),
};
static const char * const cpcap_out_mux_texts[] = {
"Off", "Voice", "HiFi", "Ext"
};
static const char * const cpcap_in_right_mux_texts[] = {
"Off", "Mic 1", "Headset Mic", "EMU Mic", "Ext Right"
};
static const char * const cpcap_in_left_mux_texts[] = {
"Off", "Mic 2", "Ext Left"
};
/*
* input muxes use unusual register layout, so that we need to use custom
* getter/setter methods
*/
static SOC_ENUM_SINGLE_EXT_DECL(cpcap_input_left_mux_enum,
cpcap_in_left_mux_texts);
static SOC_ENUM_SINGLE_EXT_DECL(cpcap_input_right_mux_enum,
cpcap_in_right_mux_texts);
/*
* mux uses same bit in CPCAP_REG_RXCOA, CPCAP_REG_RXSDOA & CPCAP_REG_RXEPOA;
* even though the register layout makes it look like a mixer, this is a mux.
* Enabling multiple inputs will result in no audio being forwarded.
*/
static SOC_ENUM_SINGLE_DECL(cpcap_earpiece_mux_enum, 0, 0, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_spkr_r_mux_enum, 0, 1, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_spkr_l_mux_enum, 0, 2, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_line_r_mux_enum, 0, 3, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_line_l_mux_enum, 0, 4, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_hs_r_mux_enum, 0, 5, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_hs_l_mux_enum, 0, 6, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_emu_l_mux_enum, 0, 7, cpcap_out_mux_texts);
static SOC_ENUM_SINGLE_DECL(cpcap_emu_r_mux_enum, 0, 8, cpcap_out_mux_texts);
static int cpcap_output_mux_get_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int shift = e->shift_l;
int reg_voice, reg_hifi, reg_ext, status;
int err;
err = regmap_read(cpcap->regmap, CPCAP_REG_RXCOA, &reg_voice);
if (err)
return err;
err = regmap_read(cpcap->regmap, CPCAP_REG_RXSDOA, &reg_hifi);
if (err)
return err;
err = regmap_read(cpcap->regmap, CPCAP_REG_RXEPOA, &reg_ext);
if (err)
return err;
reg_voice = (reg_voice >> shift) & 1;
reg_hifi = (reg_hifi >> shift) & 1;
reg_ext = (reg_ext >> shift) & 1;
status = reg_ext << 2 | reg_hifi << 1 | reg_voice;
switch (status) {
case 0x04:
ucontrol->value.enumerated.item[0] = 3;
break;
case 0x02:
ucontrol->value.enumerated.item[0] = 2;
break;
case 0x01:
ucontrol->value.enumerated.item[0] = 1;
break;
default:
ucontrol->value.enumerated.item[0] = 0;
break;
}
return 0;
}
static int cpcap_output_mux_put_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
struct snd_soc_dapm_context *dapm =
snd_soc_dapm_kcontrol_dapm(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int muxval = ucontrol->value.enumerated.item[0];
unsigned int mask = BIT(e->shift_l);
u16 reg_voice = 0x00, reg_hifi = 0x00, reg_ext = 0x00;
int err;
switch (muxval) {
case 1:
reg_voice = mask;
break;
case 2:
reg_hifi = mask;
break;
case 3:
reg_ext = mask;
break;
default:
break;
}
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_RXCOA,
mask, reg_voice);
if (err)
return err;
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_RXSDOA,
mask, reg_hifi);
if (err)
return err;
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_RXEPOA,
mask, reg_ext);
if (err)
return err;
snd_soc_dapm_mux_update_power(dapm, kcontrol, muxval, e, NULL);
return 0;
}
static int cpcap_input_right_mux_get_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
int regval, mask;
int err;
err = regmap_read(cpcap->regmap, CPCAP_REG_TXI, &regval);
if (err)
return err;
mask = 0;
mask |= BIT(CPCAP_BIT_MIC1_MUX);
mask |= BIT(CPCAP_BIT_HS_MIC_MUX);
mask |= BIT(CPCAP_BIT_EMU_MIC_MUX);
mask |= BIT(CPCAP_BIT_RX_R_ENCODE);
switch (regval & mask) {
case BIT(CPCAP_BIT_RX_R_ENCODE):
ucontrol->value.enumerated.item[0] = 4;
break;
case BIT(CPCAP_BIT_EMU_MIC_MUX):
ucontrol->value.enumerated.item[0] = 3;
break;
case BIT(CPCAP_BIT_HS_MIC_MUX):
ucontrol->value.enumerated.item[0] = 2;
break;
case BIT(CPCAP_BIT_MIC1_MUX):
ucontrol->value.enumerated.item[0] = 1;
break;
default:
ucontrol->value.enumerated.item[0] = 0;
break;
}
return 0;
}
static int cpcap_input_right_mux_put_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
struct snd_soc_dapm_context *dapm =
snd_soc_dapm_kcontrol_dapm(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int muxval = ucontrol->value.enumerated.item[0];
int regval = 0, mask;
int err;
mask = 0;
mask |= BIT(CPCAP_BIT_MIC1_MUX);
mask |= BIT(CPCAP_BIT_HS_MIC_MUX);
mask |= BIT(CPCAP_BIT_EMU_MIC_MUX);
mask |= BIT(CPCAP_BIT_RX_R_ENCODE);
switch (muxval) {
case 1:
regval = BIT(CPCAP_BIT_MIC1_MUX);
break;
case 2:
regval = BIT(CPCAP_BIT_HS_MIC_MUX);
break;
case 3:
regval = BIT(CPCAP_BIT_EMU_MIC_MUX);
break;
case 4:
regval = BIT(CPCAP_BIT_RX_R_ENCODE);
break;
default:
break;
}
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_TXI,
mask, regval);
if (err)
return err;
snd_soc_dapm_mux_update_power(dapm, kcontrol, muxval, e, NULL);
return 0;
}
static int cpcap_input_left_mux_get_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
int regval, mask;
int err;
err = regmap_read(cpcap->regmap, CPCAP_REG_TXI, &regval);
if (err)
return err;
mask = 0;
mask |= BIT(CPCAP_BIT_MIC2_MUX);
mask |= BIT(CPCAP_BIT_RX_L_ENCODE);
switch (regval & mask) {
case BIT(CPCAP_BIT_RX_L_ENCODE):
ucontrol->value.enumerated.item[0] = 2;
break;
case BIT(CPCAP_BIT_MIC2_MUX):
ucontrol->value.enumerated.item[0] = 1;
break;
default:
ucontrol->value.enumerated.item[0] = 0;
break;
}
return 0;
}
static int cpcap_input_left_mux_put_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
struct snd_soc_dapm_context *dapm =
snd_soc_dapm_kcontrol_dapm(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int muxval = ucontrol->value.enumerated.item[0];
int regval = 0, mask;
int err;
mask = 0;
mask |= BIT(CPCAP_BIT_MIC2_MUX);
mask |= BIT(CPCAP_BIT_RX_L_ENCODE);
switch (muxval) {
case 1:
regval = BIT(CPCAP_BIT_MIC2_MUX);
break;
case 2:
regval = BIT(CPCAP_BIT_RX_L_ENCODE);
break;
default:
break;
}
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_TXI,
mask, regval);
if (err)
return err;
snd_soc_dapm_mux_update_power(dapm, kcontrol, muxval, e, NULL);
return 0;
}
static const struct snd_kcontrol_new cpcap_input_left_mux =
SOC_DAPM_ENUM_EXT("Input Left", cpcap_input_left_mux_enum,
cpcap_input_left_mux_get_enum,
cpcap_input_left_mux_put_enum);
static const struct snd_kcontrol_new cpcap_input_right_mux =
SOC_DAPM_ENUM_EXT("Input Right", cpcap_input_right_mux_enum,
cpcap_input_right_mux_get_enum,
cpcap_input_right_mux_put_enum);
static const struct snd_kcontrol_new cpcap_emu_left_mux =
SOC_DAPM_ENUM_EXT("EMU Left", cpcap_emu_l_mux_enum,
cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_emu_right_mux =
SOC_DAPM_ENUM_EXT("EMU Right", cpcap_emu_r_mux_enum,
cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_hs_left_mux =
SOC_DAPM_ENUM_EXT("Headset Left", cpcap_hs_l_mux_enum,
cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_hs_right_mux =
SOC_DAPM_ENUM_EXT("Headset Right", cpcap_hs_r_mux_enum,
cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_line_left_mux =
SOC_DAPM_ENUM_EXT("Line Left", cpcap_line_l_mux_enum,
cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_line_right_mux =
SOC_DAPM_ENUM_EXT("Line Right", cpcap_line_r_mux_enum,
cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_speaker_left_mux =
SOC_DAPM_ENUM_EXT("Speaker Left", cpcap_spkr_l_mux_enum,
cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_speaker_right_mux =
SOC_DAPM_ENUM_EXT("Speaker Right", cpcap_spkr_r_mux_enum,
cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_earpiece_mux =
SOC_DAPM_ENUM_EXT("Earpiece", cpcap_earpiece_mux_enum,
cpcap_output_mux_get_enum, cpcap_output_mux_put_enum);
static const struct snd_kcontrol_new cpcap_hifi_mono_mixer_controls[] = {
SOC_DAPM_SINGLE("HiFi Mono Playback Switch",
CPCAP_REG_RXSDOA, CPCAP_BIT_MONO_DAC1, 1, 0),
};
static const struct snd_kcontrol_new cpcap_ext_mono_mixer_controls[] = {
SOC_DAPM_SINGLE("Ext Mono Playback Switch",
CPCAP_REG_RXEPOA, CPCAP_BIT_MONO_EXT0, 1, 0),
};
static const struct snd_kcontrol_new cpcap_extr_mute_control =
SOC_DAPM_SINGLE("Switch",
CPCAP_REG_RXEPOA, CPCAP_BIT_PGA_IN_R_SW, 1, 0);
static const struct snd_kcontrol_new cpcap_extl_mute_control =
SOC_DAPM_SINGLE("Switch",
CPCAP_REG_RXEPOA, CPCAP_BIT_PGA_IN_L_SW, 1, 0);
static const struct snd_kcontrol_new cpcap_voice_loopback =
SOC_DAPM_SINGLE("Switch",
CPCAP_REG_TXI, CPCAP_BIT_DLM, 1, 0);
static const struct snd_soc_dapm_widget cpcap_dapm_widgets[] = {
/* DAIs */
SND_SOC_DAPM_AIF_IN("HiFi RX", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("Voice RX", NULL, 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT("Voice TX", NULL, 0, SND_SOC_NOPM, 0, 0),
/* Power Supply */
SND_SOC_DAPM_REGULATOR_SUPPLY("VAUDIO", SLEEP_ACTIVATE_POWER, 0),
/* Highpass Filters */
SND_SOC_DAPM_REG(snd_soc_dapm_pga, "Highpass Filter RX",
CPCAP_REG_CC, CPCAP_BIT_AUDIHPF_0, 0x3, 0x3, 0x0),
SND_SOC_DAPM_REG(snd_soc_dapm_pga, "Highpass Filter TX",
CPCAP_REG_CC, CPCAP_BIT_AUDOHPF_0, 0x3, 0x3, 0x0),
/* Clocks */
SND_SOC_DAPM_SUPPLY("HiFi DAI Clock",
CPCAP_REG_SDACDI, CPCAP_BIT_ST_CLK_EN, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("Voice DAI Clock",
CPCAP_REG_CDI, CPCAP_BIT_CDC_CLK_EN, 0, NULL, 0),
/* Microphone Bias */
SND_SOC_DAPM_SUPPLY("MIC1R Bias",
CPCAP_REG_TXI, CPCAP_BIT_MB_ON1R, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("MIC1L Bias",
CPCAP_REG_TXI, CPCAP_BIT_MB_ON1L, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("MIC2 Bias",
CPCAP_REG_TXI, CPCAP_BIT_MB_ON2, 0, NULL, 0),
/* Inputs */
SND_SOC_DAPM_INPUT("MICR"),
SND_SOC_DAPM_INPUT("HSMIC"),
SND_SOC_DAPM_INPUT("EMUMIC"),
SND_SOC_DAPM_INPUT("MICL"),
SND_SOC_DAPM_INPUT("EXTR"),
SND_SOC_DAPM_INPUT("EXTL"),
/* Capture Route */
SND_SOC_DAPM_MUX("Right Capture Route",
SND_SOC_NOPM, 0, 0, &cpcap_input_right_mux),
SND_SOC_DAPM_MUX("Left Capture Route",
SND_SOC_NOPM, 0, 0, &cpcap_input_left_mux),
/* Capture PGAs */
SND_SOC_DAPM_PGA("Microphone 1 PGA",
CPCAP_REG_TXI, CPCAP_BIT_MIC1_PGA_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA("Microphone 2 PGA",
CPCAP_REG_TXI, CPCAP_BIT_MIC2_PGA_EN, 0, NULL, 0),
/* ADC */
SND_SOC_DAPM_ADC("ADC Right", NULL,
CPCAP_REG_CC, CPCAP_BIT_MIC1_CDC_EN, 0),
SND_SOC_DAPM_ADC("ADC Left", NULL,
CPCAP_REG_CC, CPCAP_BIT_MIC2_CDC_EN, 0),
/* DAC */
SND_SOC_DAPM_DAC_E("DAC HiFi", NULL,
CPCAP_REG_SDAC, CPCAP_BIT_ST_DAC_EN, 0,
cpcap_st_workaround,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_DAC_E("DAC Voice", NULL,
CPCAP_REG_CC, CPCAP_BIT_CDC_EN_RX, 0,
cpcap_st_workaround,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),
/* Playback PGA */
SND_SOC_DAPM_PGA("HiFi PGA",
CPCAP_REG_RXSDOA, CPCAP_BIT_PGA_DAC_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA("Voice PGA",
CPCAP_REG_RXCOA, CPCAP_BIT_PGA_CDC_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA_E("Ext Right PGA",
CPCAP_REG_RXEPOA, CPCAP_BIT_PGA_EXT_R_EN, 0,
NULL, 0,
cpcap_st_workaround,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_PGA_E("Ext Left PGA",
CPCAP_REG_RXEPOA, CPCAP_BIT_PGA_EXT_L_EN, 0,
NULL, 0,
cpcap_st_workaround,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU),
/* Playback Switch */
SND_SOC_DAPM_SWITCH("Ext Right Enable", SND_SOC_NOPM, 0, 0,
&cpcap_extr_mute_control),
SND_SOC_DAPM_SWITCH("Ext Left Enable", SND_SOC_NOPM, 0, 0,
&cpcap_extl_mute_control),
/* Loopback Switch */
SND_SOC_DAPM_SWITCH("Voice Loopback", SND_SOC_NOPM, 0, 0,
&cpcap_voice_loopback),
/* Mono Mixer */
SOC_MIXER_ARRAY("HiFi Mono Left Mixer", SND_SOC_NOPM, 0, 0,
cpcap_hifi_mono_mixer_controls),
SOC_MIXER_ARRAY("HiFi Mono Right Mixer", SND_SOC_NOPM, 0, 0,
cpcap_hifi_mono_mixer_controls),
SOC_MIXER_ARRAY("Ext Mono Left Mixer", SND_SOC_NOPM, 0, 0,
cpcap_ext_mono_mixer_controls),
SOC_MIXER_ARRAY("Ext Mono Right Mixer", SND_SOC_NOPM, 0, 0,
cpcap_ext_mono_mixer_controls),
/* Output Routes */
SND_SOC_DAPM_MUX("Earpiece Playback Route", SND_SOC_NOPM, 0, 0,
&cpcap_earpiece_mux),
SND_SOC_DAPM_MUX("Speaker Right Playback Route", SND_SOC_NOPM, 0, 0,
&cpcap_speaker_right_mux),
SND_SOC_DAPM_MUX("Speaker Left Playback Route", SND_SOC_NOPM, 0, 0,
&cpcap_speaker_left_mux),
SND_SOC_DAPM_MUX("Lineout Right Playback Route", SND_SOC_NOPM, 0, 0,
&cpcap_line_right_mux),
SND_SOC_DAPM_MUX("Lineout Left Playback Route", SND_SOC_NOPM, 0, 0,
&cpcap_line_left_mux),
SND_SOC_DAPM_MUX("Headset Right Playback Route", SND_SOC_NOPM, 0, 0,
&cpcap_hs_right_mux),
SND_SOC_DAPM_MUX("Headset Left Playback Route", SND_SOC_NOPM, 0, 0,
&cpcap_hs_left_mux),
SND_SOC_DAPM_MUX("EMU Right Playback Route", SND_SOC_NOPM, 0, 0,
&cpcap_emu_right_mux),
SND_SOC_DAPM_MUX("EMU Left Playback Route", SND_SOC_NOPM, 0, 0,
&cpcap_emu_left_mux),
/* Output Amplifier */
SND_SOC_DAPM_PGA("Earpiece PGA",
CPCAP_REG_RXOA, CPCAP_BIT_A1_EAR_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA("Speaker Right PGA",
CPCAP_REG_RXOA, CPCAP_BIT_A2_LDSP_R_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA("Speaker Left PGA",
CPCAP_REG_RXOA, CPCAP_BIT_A2_LDSP_L_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA("Lineout Right PGA",
CPCAP_REG_RXOA, CPCAP_BIT_A4_LINEOUT_R_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA("Lineout Left PGA",
CPCAP_REG_RXOA, CPCAP_BIT_A4_LINEOUT_L_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA("Headset Right PGA",
CPCAP_REG_RXOA, CPCAP_BIT_HS_R_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA("Headset Left PGA",
CPCAP_REG_RXOA, CPCAP_BIT_HS_L_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA("EMU Right PGA",
CPCAP_REG_RXOA, CPCAP_BIT_EMU_SPKR_R_EN, 0, NULL, 0),
SND_SOC_DAPM_PGA("EMU Left PGA",
CPCAP_REG_RXOA, CPCAP_BIT_EMU_SPKR_L_EN, 0, NULL, 0),
/* Headet Charge Pump */
SND_SOC_DAPM_SUPPLY("Headset Charge Pump",
CPCAP_REG_RXOA, CPCAP_BIT_ST_HS_CP_EN, 0, NULL, 0),
/* Outputs */
SND_SOC_DAPM_OUTPUT("EP"),
SND_SOC_DAPM_OUTPUT("SPKR"),
SND_SOC_DAPM_OUTPUT("SPKL"),
SND_SOC_DAPM_OUTPUT("LINER"),
SND_SOC_DAPM_OUTPUT("LINEL"),
SND_SOC_DAPM_OUTPUT("HSR"),
SND_SOC_DAPM_OUTPUT("HSL"),
SND_SOC_DAPM_OUTPUT("EMUR"),
SND_SOC_DAPM_OUTPUT("EMUL"),
};
static const struct snd_soc_dapm_route intercon[] = {
/* Power Supply */
{"HiFi PGA", NULL, "VAUDIO"},
{"Voice PGA", NULL, "VAUDIO"},
{"Ext Right PGA", NULL, "VAUDIO"},
{"Ext Left PGA", NULL, "VAUDIO"},
{"Microphone 1 PGA", NULL, "VAUDIO"},
{"Microphone 2 PGA", NULL, "VAUDIO"},
/* Stream -> AIF */
{"HiFi RX", NULL, "HiFi Playback"},
{"Voice RX", NULL, "Voice Playback"},
{"Voice Capture", NULL, "Voice TX"},
/* AIF clocks */
{"HiFi RX", NULL, "HiFi DAI Clock"},
{"Voice RX", NULL, "Voice DAI Clock"},
{"Voice TX", NULL, "Voice DAI Clock"},
/* Digital Loopback */
{"Voice Loopback", "Switch", "Voice TX"},
{"Voice RX", NULL, "Voice Loopback"},
/* Highpass Filters */
{"Highpass Filter RX", NULL, "Voice RX"},
{"Voice TX", NULL, "Highpass Filter TX"},
/* AIF -> DAC mapping */
{"DAC HiFi", NULL, "HiFi RX"},
{"DAC Voice", NULL, "Highpass Filter RX"},
/* DAC -> PGA */
{"HiFi PGA", NULL, "DAC HiFi"},
{"Voice PGA", NULL, "DAC Voice"},
/* Ext Input -> PGA */
{"Ext Right PGA", NULL, "EXTR"},
{"Ext Left PGA", NULL, "EXTL"},
/* Ext PGA -> Ext Playback Switch */
{"Ext Right Enable", "Switch", "Ext Right PGA"},
{"Ext Left Enable", "Switch", "Ext Left PGA"},
/* HiFi PGA -> Mono Mixer */
{"HiFi Mono Left Mixer", NULL, "HiFi PGA"},
{"HiFi Mono Left Mixer", "HiFi Mono Playback Switch", "HiFi PGA"},
{"HiFi Mono Right Mixer", NULL, "HiFi PGA"},
{"HiFi Mono Right Mixer", "HiFi Mono Playback Switch", "HiFi PGA"},
/* Ext Playback Switch -> Ext Mono Mixer */
{"Ext Mono Right Mixer", NULL, "Ext Right Enable"},
{"Ext Mono Right Mixer", "Ext Mono Playback Switch", "Ext Left Enable"},
{"Ext Mono Left Mixer", NULL, "Ext Left Enable"},
{"Ext Mono Left Mixer", "Ext Mono Playback Switch", "Ext Right Enable"},
/* HiFi Mono Mixer -> Output Route */
{"Earpiece Playback Route", "HiFi", "HiFi Mono Right Mixer"},
{"Speaker Right Playback Route", "HiFi", "HiFi Mono Right Mixer"},
{"Speaker Left Playback Route", "HiFi", "HiFi Mono Left Mixer"},
{"Lineout Right Playback Route", "HiFi", "HiFi Mono Right Mixer"},
{"Lineout Left Playback Route", "HiFi", "HiFi Mono Left Mixer"},
{"Headset Right Playback Route", "HiFi", "HiFi Mono Right Mixer"},
{"Headset Left Playback Route", "HiFi", "HiFi Mono Left Mixer"},
{"EMU Right Playback Route", "HiFi", "HiFi Mono Right Mixer"},
{"EMU Left Playback Route", "HiFi", "HiFi Mono Left Mixer"},
/* Voice PGA -> Output Route */
{"Earpiece Playback Route", "Voice", "Voice PGA"},
{"Speaker Right Playback Route", "Voice", "Voice PGA"},
{"Speaker Left Playback Route", "Voice", "Voice PGA"},
{"Lineout Right Playback Route", "Voice", "Voice PGA"},
{"Lineout Left Playback Route", "Voice", "Voice PGA"},
{"Headset Right Playback Route", "Voice", "Voice PGA"},
{"Headset Left Playback Route", "Voice", "Voice PGA"},
{"EMU Right Playback Route", "Voice", "Voice PGA"},
{"EMU Left Playback Route", "Voice", "Voice PGA"},
/* Ext Mono Mixer -> Output Route */
{"Earpiece Playback Route", "Ext", "Ext Mono Right Mixer"},
{"Speaker Right Playback Route", "Ext", "Ext Mono Right Mixer"},
{"Speaker Left Playback Route", "Ext", "Ext Mono Left Mixer"},
{"Lineout Right Playback Route", "Ext", "Ext Mono Right Mixer"},
{"Lineout Left Playback Route", "Ext", "Ext Mono Left Mixer"},
{"Headset Right Playback Route", "Ext", "Ext Mono Right Mixer"},
{"Headset Left Playback Route", "Ext", "Ext Mono Left Mixer"},
{"EMU Right Playback Route", "Ext", "Ext Mono Right Mixer"},
{"EMU Left Playback Route", "Ext", "Ext Mono Left Mixer"},
/* Output Route -> Output Amplifier */
{"Earpiece PGA", NULL, "Earpiece Playback Route"},
{"Speaker Right PGA", NULL, "Speaker Right Playback Route"},
{"Speaker Left PGA", NULL, "Speaker Left Playback Route"},
{"Lineout Right PGA", NULL, "Lineout Right Playback Route"},
{"Lineout Left PGA", NULL, "Lineout Left Playback Route"},
{"Headset Right PGA", NULL, "Headset Right Playback Route"},
{"Headset Left PGA", NULL, "Headset Left Playback Route"},
{"EMU Right PGA", NULL, "EMU Right Playback Route"},
{"EMU Left PGA", NULL, "EMU Left Playback Route"},
/* Output Amplifier -> Output */
{"EP", NULL, "Earpiece PGA"},
{"SPKR", NULL, "Speaker Right PGA"},
{"SPKL", NULL, "Speaker Left PGA"},
{"LINER", NULL, "Lineout Right PGA"},
{"LINEL", NULL, "Lineout Left PGA"},
{"HSR", NULL, "Headset Right PGA"},
{"HSL", NULL, "Headset Left PGA"},
{"EMUR", NULL, "EMU Right PGA"},
{"EMUL", NULL, "EMU Left PGA"},
/* Headset Charge Pump -> Headset */
{"HSR", NULL, "Headset Charge Pump"},
{"HSL", NULL, "Headset Charge Pump"},
/* Mic -> Mic Route */
{"Right Capture Route", "Mic 1", "MICR"},
{"Right Capture Route", "Headset Mic", "HSMIC"},
{"Right Capture Route", "EMU Mic", "EMUMIC"},
{"Right Capture Route", "Ext Right", "EXTR"},
{"Left Capture Route", "Mic 2", "MICL"},
{"Left Capture Route", "Ext Left", "EXTL"},
/* Input Route -> Microphone PGA */
{"Microphone 1 PGA", NULL, "Right Capture Route"},
{"Microphone 2 PGA", NULL, "Left Capture Route"},
/* Microphone PGA -> ADC */
{"ADC Right", NULL, "Microphone 1 PGA"},
{"ADC Left", NULL, "Microphone 2 PGA"},
/* ADC -> Stream */
{"Highpass Filter TX", NULL, "ADC Right"},
{"Highpass Filter TX", NULL, "ADC Left"},
/* Mic Bias */
{"MICL", NULL, "MIC1L Bias"},
{"MICR", NULL, "MIC1R Bias"},
};
static int cpcap_set_sysclk(struct cpcap_audio *cpcap, enum cpcap_dai dai,
int clk_id, int freq)
{
u16 clkfreqreg, clkfreqshift;
u16 clkfreqmask, clkfreqval;
u16 clkidreg, clkidshift;
u16 mask, val;
int err;
switch (dai) {
case CPCAP_DAI_HIFI:
clkfreqreg = CPCAP_REG_SDAC;
clkfreqshift = CPCAP_BIT_ST_DAC_CLK0;
clkidreg = CPCAP_REG_SDACDI;
clkidshift = CPCAP_BIT_ST_DAC_CLK_IN_SEL;
break;
case CPCAP_DAI_VOICE:
clkfreqreg = CPCAP_REG_CC;
clkfreqshift = CPCAP_BIT_CDC_CLK0;
clkidreg = CPCAP_REG_CDI;
clkidshift = CPCAP_BIT_CLK_IN_SEL;
break;
default:
dev_err(cpcap->component->dev, "invalid DAI: %d", dai);
return -EINVAL;
}
/* setup clk id */
if (clk_id < 0 || clk_id > 1) {
dev_err(cpcap->component->dev, "invalid clk id %d", clk_id);
return -EINVAL;
}
err = regmap_update_bits(cpcap->regmap, clkidreg, BIT(clkidshift),
clk_id ? BIT(clkidshift) : 0);
if (err)
return err;
/* enable PLL for Voice DAI */
if (dai == CPCAP_DAI_VOICE) {
mask = BIT(CPCAP_BIT_CDC_PLL_SEL);
val = BIT(CPCAP_BIT_CDC_PLL_SEL);
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_CDI,
mask, val);
if (err)
return err;
}
/* setup frequency */
clkfreqmask = 0x7 << clkfreqshift;
switch (freq) {
case 15360000:
clkfreqval = 0x01 << clkfreqshift;
break;
case 16800000:
clkfreqval = 0x02 << clkfreqshift;
break;
case 19200000:
clkfreqval = 0x03 << clkfreqshift;
break;
case 26000000:
clkfreqval = 0x04 << clkfreqshift;
break;
case 33600000:
clkfreqval = 0x05 << clkfreqshift;
break;
case 38400000:
clkfreqval = 0x06 << clkfreqshift;
break;
default:
dev_err(cpcap->component->dev, "unsupported freq %u", freq);
return -EINVAL;
}
err = regmap_update_bits(cpcap->regmap, clkfreqreg,
clkfreqmask, clkfreqval);
if (err)
return err;
if (dai == CPCAP_DAI_VOICE) {
cpcap->codec_clk_id = clk_id;
cpcap->codec_freq = freq;
}
return 0;
}
static int cpcap_set_samprate(struct cpcap_audio *cpcap, enum cpcap_dai dai,
int samplerate)
{
struct snd_soc_component *component = cpcap->component;
u16 sampreg, sampmask, sampshift, sampval, sampreset;
int err, sampreadval;
switch (dai) {
case CPCAP_DAI_HIFI:
sampreg = CPCAP_REG_SDAC;
sampshift = CPCAP_BIT_ST_SR0;
sampreset = BIT(CPCAP_BIT_DF_RESET_ST_DAC) |
BIT(CPCAP_BIT_ST_CLOCK_TREE_RESET);
break;
case CPCAP_DAI_VOICE:
sampreg = CPCAP_REG_CC;
sampshift = CPCAP_BIT_CDC_SR0;
sampreset = BIT(CPCAP_BIT_DF_RESET) |
BIT(CPCAP_BIT_CDC_CLOCK_TREE_RESET);
break;
default:
dev_err(component->dev, "invalid DAI: %d", dai);
return -EINVAL;
}
sampmask = 0xF << sampshift | sampreset;
switch (samplerate) {
case 48000:
sampval = 0x8 << sampshift;
break;
case 44100:
sampval = 0x7 << sampshift;
break;
case 32000:
sampval = 0x6 << sampshift;
break;
case 24000:
sampval = 0x5 << sampshift;
break;
case 22050:
sampval = 0x4 << sampshift;
break;
case 16000:
sampval = 0x3 << sampshift;
break;
case 12000:
sampval = 0x2 << sampshift;
break;
case 11025:
sampval = 0x1 << sampshift;
break;
case 8000:
sampval = 0x0 << sampshift;
break;
default:
dev_err(component->dev, "unsupported samplerate %d", samplerate);
return -EINVAL;
}
err = regmap_update_bits(cpcap->regmap, sampreg,
sampmask, sampval | sampreset);
if (err)
return err;
/* Wait for clock tree reset to complete */
mdelay(CLOCK_TREE_RESET_TIME);
err = regmap_read(cpcap->regmap, sampreg, &sampreadval);
if (err)
return err;
if (sampreadval & sampreset) {
dev_err(component->dev, "reset self-clear failed: %04x",
sampreadval);
return -EIO;
}
return 0;
}
static int cpcap_hifi_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
int rate = params_rate(params);
dev_dbg(component->dev, "HiFi setup HW params: rate=%d", rate);
return cpcap_set_samprate(cpcap, CPCAP_DAI_HIFI, rate);
}
static int cpcap_hifi_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id,
unsigned int freq, int dir)
{
struct snd_soc_component *component = codec_dai->component;
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
struct device *dev = component->dev;
dev_dbg(dev, "HiFi setup sysclk: clk_id=%u, freq=%u", clk_id, freq);
return cpcap_set_sysclk(cpcap, CPCAP_DAI_HIFI, clk_id, freq);
}
static int cpcap_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
struct snd_soc_component *component = codec_dai->component;
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
struct device *dev = component->dev;
static const u16 reg = CPCAP_REG_SDACDI;
static const u16 mask =
BIT(CPCAP_BIT_SMB_ST_DAC) |
BIT(CPCAP_BIT_ST_CLK_INV) |
BIT(CPCAP_BIT_ST_FS_INV) |
BIT(CPCAP_BIT_ST_DIG_AUD_FS0) |
BIT(CPCAP_BIT_ST_DIG_AUD_FS1) |
BIT(CPCAP_BIT_ST_L_TIMESLOT0) |
BIT(CPCAP_BIT_ST_L_TIMESLOT1) |
BIT(CPCAP_BIT_ST_L_TIMESLOT2) |
BIT(CPCAP_BIT_ST_R_TIMESLOT0) |
BIT(CPCAP_BIT_ST_R_TIMESLOT1) |
BIT(CPCAP_BIT_ST_R_TIMESLOT2);
u16 val = 0x0000;
dev_dbg(dev, "HiFi setup dai format (%08x)", fmt);
/*
* "HiFi Playback" should always be configured as
* SND_SOC_DAIFMT_CBP_CFP - codec clk & frm provider
* SND_SOC_DAIFMT_I2S - I2S mode
*/
switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
case SND_SOC_DAIFMT_CBP_CFP:
val &= ~BIT(CPCAP_BIT_SMB_ST_DAC);
break;
default:
dev_err(dev, "HiFi dai fmt failed: CPCAP should be provider");
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_IB_IF:
val |= BIT(CPCAP_BIT_ST_FS_INV);
val |= BIT(CPCAP_BIT_ST_CLK_INV);
break;
case SND_SOC_DAIFMT_IB_NF:
val &= ~BIT(CPCAP_BIT_ST_FS_INV);
val |= BIT(CPCAP_BIT_ST_CLK_INV);
break;
case SND_SOC_DAIFMT_NB_IF:
val |= BIT(CPCAP_BIT_ST_FS_INV);
val &= ~BIT(CPCAP_BIT_ST_CLK_INV);
break;
case SND_SOC_DAIFMT_NB_NF:
val &= ~BIT(CPCAP_BIT_ST_FS_INV);
val &= ~BIT(CPCAP_BIT_ST_CLK_INV);
break;
default:
dev_err(dev, "HiFi dai fmt failed: unsupported clock invert mode");
return -EINVAL;
}
if (val & BIT(CPCAP_BIT_ST_CLK_INV))
val &= ~BIT(CPCAP_BIT_ST_CLK_INV);
else
val |= BIT(CPCAP_BIT_ST_CLK_INV);
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
val |= BIT(CPCAP_BIT_ST_DIG_AUD_FS0);
val |= BIT(CPCAP_BIT_ST_DIG_AUD_FS1);
break;
default:
/* 01 - 4 slots network mode */
val |= BIT(CPCAP_BIT_ST_DIG_AUD_FS0);
val &= ~BIT(CPCAP_BIT_ST_DIG_AUD_FS1);
/* L on slot 1 */
val |= BIT(CPCAP_BIT_ST_L_TIMESLOT0);
break;
}
dev_dbg(dev, "HiFi dai format: val=%04x", val);
return regmap_update_bits(cpcap->regmap, reg, mask, val);
}
static int cpcap_hifi_set_mute(struct snd_soc_dai *dai, int mute, int direction)
{
struct snd_soc_component *component = dai->component;
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
static const u16 reg = CPCAP_REG_RXSDOA;
static const u16 mask = BIT(CPCAP_BIT_ST_DAC_SW);
u16 val;
if (mute)
val = 0;
else
val = BIT(CPCAP_BIT_ST_DAC_SW);
dev_dbg(component->dev, "HiFi mute: %d", mute);
return regmap_update_bits(cpcap->regmap, reg, mask, val);
}
static const struct snd_soc_dai_ops cpcap_dai_hifi_ops = {
.hw_params = cpcap_hifi_hw_params,
.set_sysclk = cpcap_hifi_set_dai_sysclk,
.set_fmt = cpcap_hifi_set_dai_fmt,
.mute_stream = cpcap_hifi_set_mute,
.no_capture_mute = 1,
};
static int cpcap_voice_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct device *dev = component->dev;
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
static const u16 reg_cdi = CPCAP_REG_CDI;
int rate = params_rate(params);
int channels = params_channels(params);
int direction = substream->stream;
u16 val, mask;
int err;
dev_dbg(dev, "Voice setup HW params: rate=%d, direction=%d, chan=%d",
rate, direction, channels);
err = cpcap_set_samprate(cpcap, CPCAP_DAI_VOICE, rate);
if (err)
return err;
if (direction == SNDRV_PCM_STREAM_CAPTURE) {
mask = 0x0000;
mask |= BIT(CPCAP_BIT_MIC1_RX_TIMESLOT0);
mask |= BIT(CPCAP_BIT_MIC1_RX_TIMESLOT1);
mask |= BIT(CPCAP_BIT_MIC1_RX_TIMESLOT2);
mask |= BIT(CPCAP_BIT_MIC2_TIMESLOT0);
mask |= BIT(CPCAP_BIT_MIC2_TIMESLOT1);
mask |= BIT(CPCAP_BIT_MIC2_TIMESLOT2);
val = 0x0000;
if (channels >= 2)
val = BIT(CPCAP_BIT_MIC1_RX_TIMESLOT0);
err = regmap_update_bits(cpcap->regmap, reg_cdi, mask, val);
if (err)
return err;
}
return 0;
}
static int cpcap_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id,
unsigned int freq, int dir)
{
struct snd_soc_component *component = codec_dai->component;
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
dev_dbg(component->dev, "Voice setup sysclk: clk_id=%u, freq=%u",
clk_id, freq);
return cpcap_set_sysclk(cpcap, CPCAP_DAI_VOICE, clk_id, freq);
}
static int cpcap_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
struct snd_soc_component *component = codec_dai->component;
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
static const u16 mask = BIT(CPCAP_BIT_SMB_CDC) |
BIT(CPCAP_BIT_CLK_INV) |
BIT(CPCAP_BIT_FS_INV) |
BIT(CPCAP_BIT_CDC_DIG_AUD_FS0) |
BIT(CPCAP_BIT_CDC_DIG_AUD_FS1);
u16 val = 0x0000;
int err;
dev_dbg(component->dev, "Voice setup dai format (%08x)", fmt);
/*
* "Voice Playback" and "Voice Capture" should always be
* configured as SND_SOC_DAIFMT_CBP_CFP - codec clk & frm
* provider
*/
switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
case SND_SOC_DAIFMT_CBP_CFP:
val &= ~BIT(CPCAP_BIT_SMB_CDC);
break;
default:
dev_err(component->dev, "Voice dai fmt failed: CPCAP should be the provider");
val &= ~BIT(CPCAP_BIT_SMB_CDC);
break;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_IB_IF:
val |= BIT(CPCAP_BIT_CLK_INV);
val |= BIT(CPCAP_BIT_FS_INV);
break;
case SND_SOC_DAIFMT_IB_NF:
val |= BIT(CPCAP_BIT_CLK_INV);
val &= ~BIT(CPCAP_BIT_FS_INV);
break;
case SND_SOC_DAIFMT_NB_IF:
val &= ~BIT(CPCAP_BIT_CLK_INV);
val |= BIT(CPCAP_BIT_FS_INV);
break;
case SND_SOC_DAIFMT_NB_NF:
val &= ~BIT(CPCAP_BIT_CLK_INV);
val &= ~BIT(CPCAP_BIT_FS_INV);
break;
default:
dev_err(component->dev, "Voice dai fmt failed: unsupported clock invert mode");
break;
}
if (val & BIT(CPCAP_BIT_CLK_INV))
val &= ~BIT(CPCAP_BIT_CLK_INV);
else
val |= BIT(CPCAP_BIT_CLK_INV);
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
/* 11 - true I2S mode */
val |= BIT(CPCAP_BIT_CDC_DIG_AUD_FS0);
val |= BIT(CPCAP_BIT_CDC_DIG_AUD_FS1);
break;
default:
/* 4 timeslots network mode */
val |= BIT(CPCAP_BIT_CDC_DIG_AUD_FS0);
val &= ~BIT(CPCAP_BIT_CDC_DIG_AUD_FS1);
break;
}
dev_dbg(component->dev, "Voice dai format: val=%04x", val);
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_CDI, mask, val);
if (err)
return err;
cpcap->codec_format = val;
return 0;
}
/*
* Configure codec for voice call if requested.
*
* We can configure most with snd_soc_dai_set_sysclk(), snd_soc_dai_set_fmt()
* and snd_soc_dai_set_tdm_slot(). This function configures the rest of the
* cpcap related hardware as CPU is not involved in the voice call.
*/
static int cpcap_voice_call(struct cpcap_audio *cpcap, struct snd_soc_dai *dai,
bool voice_call)
{
int mask, err;
/* Modem to codec VAUDIO_MODE1 */
mask = BIT(CPCAP_BIT_VAUDIO_MODE1);
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_VAUDIOC,
mask, voice_call ? mask : 0);
if (err)
return err;
/* Clear MIC1_MUX for call */
mask = BIT(CPCAP_BIT_MIC1_MUX);
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_TXI,
mask, voice_call ? 0 : mask);
if (err)
return err;
/* Set MIC2_MUX for call */
mask = BIT(CPCAP_BIT_MB_ON1L) | BIT(CPCAP_BIT_MB_ON1R) |
BIT(CPCAP_BIT_MIC2_MUX) | BIT(CPCAP_BIT_MIC2_PGA_EN);
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_TXI,
mask, voice_call ? mask : 0);
if (err)
return err;
/* Enable LDSP for call */
mask = BIT(CPCAP_BIT_A2_LDSP_L_EN) | BIT(CPCAP_BIT_A2_LDSP_R_EN);
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_RXOA,
mask, voice_call ? mask : 0);
if (err)
return err;
/* Enable CPCAP_BIT_PGA_CDC_EN for call */
mask = BIT(CPCAP_BIT_PGA_CDC_EN);
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_RXCOA,
mask, voice_call ? mask : 0);
if (err)
return err;
/* Unmute voice for call */
if (dai) {
err = snd_soc_dai_digital_mute(dai, !voice_call,
SNDRV_PCM_STREAM_PLAYBACK);
if (err)
return err;
}
/* Set modem to codec mic CDC and HPF for call */
mask = BIT(CPCAP_BIT_MIC2_CDC_EN) | BIT(CPCAP_BIT_CDC_EN_RX) |
BIT(CPCAP_BIT_AUDOHPF_1) | BIT(CPCAP_BIT_AUDOHPF_0) |
BIT(CPCAP_BIT_AUDIHPF_1) | BIT(CPCAP_BIT_AUDIHPF_0);
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_CC,
mask, voice_call ? mask : 0);
if (err)
return err;
/* Enable modem to codec CDC for call*/
mask = BIT(CPCAP_BIT_CDC_CLK_EN);
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_CDI,
mask, voice_call ? mask : 0);
return err;
}
static int cpcap_voice_set_tdm_slot(struct snd_soc_dai *dai,
unsigned int tx_mask, unsigned int rx_mask,
int slots, int slot_width)
{
struct snd_soc_component *component = dai->component;
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
int err, ts_mask, mask;
bool voice_call;
/*
* Primitive test for voice call, probably needs more checks
* later on for 16-bit calls detected, Bluetooth headset etc.
*/
if (tx_mask == 0 && rx_mask == 1 && slot_width == 8)
voice_call = true;
else
voice_call = false;
ts_mask = 0x7 << CPCAP_BIT_MIC2_TIMESLOT0;
ts_mask |= 0x7 << CPCAP_BIT_MIC1_RX_TIMESLOT0;
mask = (tx_mask & 0x7) << CPCAP_BIT_MIC2_TIMESLOT0;
mask |= (rx_mask & 0x7) << CPCAP_BIT_MIC1_RX_TIMESLOT0;
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_CDI,
ts_mask, mask);
if (err)
return err;
err = cpcap_set_samprate(cpcap, CPCAP_DAI_VOICE, slot_width * 1000);
if (err)
return err;
err = cpcap_voice_call(cpcap, dai, voice_call);
if (err)
return err;
return 0;
}
static int cpcap_voice_set_mute(struct snd_soc_dai *dai, int mute, int direction)
{
struct snd_soc_component *component = dai->component;
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
static const u16 reg = CPCAP_REG_RXCOA;
static const u16 mask = BIT(CPCAP_BIT_CDC_SW);
u16 val;
if (mute)
val = 0;
else
val = BIT(CPCAP_BIT_CDC_SW);
dev_dbg(component->dev, "Voice mute: %d", mute);
return regmap_update_bits(cpcap->regmap, reg, mask, val);
};
static const struct snd_soc_dai_ops cpcap_dai_voice_ops = {
.hw_params = cpcap_voice_hw_params,
.set_sysclk = cpcap_voice_set_dai_sysclk,
.set_fmt = cpcap_voice_set_dai_fmt,
.set_tdm_slot = cpcap_voice_set_tdm_slot,
.mute_stream = cpcap_voice_set_mute,
.no_capture_mute = 1,
};
static struct snd_soc_dai_driver cpcap_dai[] = {
{
.id = 0,
.name = "cpcap-hifi",
.playback = {
.stream_name = "HiFi Playback",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FORMAT_S24_LE,
},
.ops = &cpcap_dai_hifi_ops,
},
{
.id = 1,
.name = "cpcap-voice",
.playback = {
.stream_name = "Voice Playback",
.channels_min = 1,
.channels_max = 1,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
.capture = {
.stream_name = "Voice Capture",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
.ops = &cpcap_dai_voice_ops,
},
};
static int cpcap_dai_mux(struct cpcap_audio *cpcap, bool swap_dai_configuration)
{
u16 hifi_val, voice_val;
u16 hifi_mask = BIT(CPCAP_BIT_DIG_AUD_IN_ST_DAC);
u16 voice_mask = BIT(CPCAP_BIT_DIG_AUD_IN);
int err;
if (!swap_dai_configuration) {
/* Codec on DAI0, HiFi on DAI1 */
voice_val = 0;
hifi_val = hifi_mask;
} else {
/* Codec on DAI1, HiFi on DAI0 */
voice_val = voice_mask;
hifi_val = 0;
}
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_CDI,
voice_mask, voice_val);
if (err)
return err;
err = regmap_update_bits(cpcap->regmap, CPCAP_REG_SDACDI,
hifi_mask, hifi_val);
if (err)
return err;
return 0;
}
static int cpcap_audio_reset(struct snd_soc_component *component,
bool swap_dai_configuration)
{
struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component);
int i, err = 0;
dev_dbg(component->dev, "init audio codec");
for (i = 0; i < ARRAY_SIZE(cpcap_default_regs); i++) {
err = regmap_update_bits(cpcap->regmap,
cpcap_default_regs[i].reg,
cpcap_default_regs[i].mask,
cpcap_default_regs[i].val);
if (err)
return err;
}
/* setup default settings */
err = cpcap_dai_mux(cpcap, swap_dai_configuration);
if (err)
return err;
err = cpcap_set_sysclk(cpcap, CPCAP_DAI_HIFI, 0, 26000000);
if (err)
return err;
err = cpcap_set_sysclk(cpcap, CPCAP_DAI_VOICE, 0, 26000000);
if (err)
return err;
err = cpcap_set_samprate(cpcap, CPCAP_DAI_HIFI, 48000);
if (err)
return err;
err = cpcap_set_samprate(cpcap, CPCAP_DAI_VOICE, 48000);
if (err)
return err;
return 0;
}
static int cpcap_soc_probe(struct snd_soc_component *component)
{
struct cpcap_audio *cpcap;
int err;
cpcap = devm_kzalloc(component->dev, sizeof(*cpcap), GFP_KERNEL);
if (!cpcap)
return -ENOMEM;
snd_soc_component_set_drvdata(component, cpcap);
cpcap->component = component;
cpcap->regmap = dev_get_regmap(component->dev->parent, NULL);
if (!cpcap->regmap)
return -ENODEV;
snd_soc_component_init_regmap(component, cpcap->regmap);
err = cpcap_get_vendor(component->dev, cpcap->regmap, &cpcap->vendor);
if (err)
return err;
return cpcap_audio_reset(component, false);
}
static struct snd_soc_component_driver soc_codec_dev_cpcap = {
.probe = cpcap_soc_probe,
.controls = cpcap_snd_controls,
.num_controls = ARRAY_SIZE(cpcap_snd_controls),
.dapm_widgets = cpcap_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(cpcap_dapm_widgets),
.dapm_routes = intercon,
.num_dapm_routes = ARRAY_SIZE(intercon),
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
};
static int cpcap_codec_probe(struct platform_device *pdev)
{
struct device_node *codec_node =
of_get_child_by_name(pdev->dev.parent->of_node, "audio-codec");
if (!codec_node)
return -ENODEV;
pdev->dev.of_node = codec_node;
return devm_snd_soc_register_component(&pdev->dev, &soc_codec_dev_cpcap,
cpcap_dai, ARRAY_SIZE(cpcap_dai));
}
static struct platform_driver cpcap_codec_driver = {
.probe = cpcap_codec_probe,
.driver = {
.name = "cpcap-codec",
},
};
module_platform_driver(cpcap_codec_driver);
MODULE_ALIAS("platform:cpcap-codec");
MODULE_DESCRIPTION("ASoC CPCAP codec driver");
MODULE_AUTHOR("Sebastian Reichel");
MODULE_LICENSE("GPL v2");