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|
/* $NetBSD: es8316ac.c,v 1.2.4.2 2020/01/21 10:39:58 martin Exp $ */
/*-
* Copyright (c) 2020 Jared McNeill <jmcneill@invisible.ca>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: es8316ac.c,v 1.2.4.2 2020/01/21 10:39:58 martin Exp $");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/device.h>
#include <sys/intr.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/bitops.h>
#include <dev/audio/audio_dai.h>
#include <dev/i2c/i2cvar.h>
#include <dev/fdt/fdtvar.h>
#define ESCODEC_RESET_REG 0x00
#define RESET_ALL __BITS(5,0)
#define RESET_CSM_ON __BIT(7)
#define ESCODEC_CLKMAN1_REG 0x01
#define CLKMAN1_MCLK_ON __BIT(6)
#define CLKMAN1_BCLK_ON __BIT(5)
#define CLKMAN1_CLK_CP_ON __BIT(4)
#define CLKMAN1_CLK_DAC_ON __BIT(2)
#define CLKMAN1_ANACLK_DAC_ON __BIT(0)
#define ESCODEC_ADC_OSR_REG 0x03
#define ESCODEC_SD_CLK_REG 0x09
#define SD_CLK_MSC __BIT(7)
#define SD_CLK_BCLK_INV __BIT(5)
#define ESCODEC_SD_ADC_REG 0x0a
#define ESCODEC_SD_DAC_REG 0x0b
#define SD_FMT_LRP __BIT(5)
#define SD_FMT_WL __BITS(4,2)
#define SD_FMT_WL_16 3
#define SD_FMT_MASK __BITS(1,0)
#define SD_FMT_I2S 0
#define ESCODEC_VMID_REG 0x0c
#define ESCODEC_PDN_REG 0x0d
#define ESCODEC_HPSEL_REG 0x13
#define ESCODEC_HPMIXRT_REG 0x14
#define HPMIXRT_LD2LHPMIX __BIT(7)
#define HPMIXRT_RD2RHPMIX __BIT(3)
#define ESCODEC_HPMIX_REG 0x15
#define HPMIX_LHPMIX_MUTE __BIT(5)
#define HPMIX_PDN_LHP_MIX __BIT(4)
#define HPMIX_RHPMIX_MUTE __BIT(1)
#define HPMIX_PDN_RHP_MIX __BIT(0)
#define ESCODEC_HPMIXVOL_REG 0x16
#define HPMIXVOL_LHPMIXVOL __BITS(7,4)
#define HPMIXVOL_RHPMIXVOL __BITS(3,0)
#define ESCODEC_HPOUTEN_REG 0x17
#define HPOUTEN_EN_HPL __BIT(6)
#define HPOUTEN_HPL_OUTEN __BIT(5)
#define HPOUTEN_EN_HPR __BIT(2)
#define HPOUTEN_HPR_OUTEN __BIT(1)
#define ESCODEC_HPVOL_REG 0x18
#define HPVOL_PDN_LICAL __BIT(7)
#define HPVOL_HPLVOL __BITS(5,4)
#define HPVOL_PDN_RICAL __BIT(3)
#define HPVOL_HPRVOL __BITS(1,0)
#define ESCODEC_HPPWR_REG 0x19
#define HPPWR_PDN_CPHP __BIT(2)
#define ESCODEC_CPPWR_REG 0x1a
#define CPPWR_PDN_CP __BIT(5)
#define ESCODEC_DACPWR_REG 0x2f
#define DACPWR_PDN_DAC_L __BIT(4)
#define DACPWR_PDN_DAC_R __BIT(0)
#define ESCODEC_DACCTL1_REG 0x30
#define DACCTL1_MUTE __BIT(5)
#define ESCODEC_DACVOL_L_REG 0x33
#define DACVOL_L_DACVOLUME __BITS(7,0)
#define ESCODEC_DACVOL_R_REG 0x34
#define DACVOL_R_DACVOLUME __BITS(7,0)
static const struct device_compatible_entry compat_data[] = {
{ "everest,es8316", 1 },
{ NULL }
};
struct escodec_softc {
device_t sc_dev;
i2c_tag_t sc_i2c;
i2c_addr_t sc_addr;
int sc_phandle;
struct clk *sc_clk;
struct audio_dai_device sc_dai;
audio_dai_tag_t sc_amplifier;
uint8_t sc_swvol;
};
static void
escodec_lock(struct escodec_softc *sc)
{
iic_acquire_bus(sc->sc_i2c, 0);
}
static void
escodec_unlock(struct escodec_softc *sc)
{
iic_release_bus(sc->sc_i2c, 0);
}
static uint8_t
escodec_read(struct escodec_softc *sc, uint8_t reg)
{
uint8_t val;
if (iic_smbus_read_byte(sc->sc_i2c, sc->sc_addr, reg, &val, 0) != 0)
val = 0xff;
return val;
}
static void
escodec_write(struct escodec_softc *sc, uint8_t reg, uint8_t val)
{
(void)iic_smbus_write_byte(sc->sc_i2c, sc->sc_addr, reg, val, 0);
}
enum escodec_mixer_ctrl {
ESCODEC_OUTPUT_CLASS,
ESCODEC_INPUT_CLASS,
ESCODEC_OUTPUT_MASTER,
ESCODEC_INPUT_DAC,
ESCODEC_INPUT_DAC_MUTE,
ESCODEC_INPUT_HEADPHONE,
ESCODEC_INPUT_MIXEROUT,
ESCODEC_INPUT_MIXEROUT_MUTE,
ESCODEC_MIXER_CTRL_LAST
};
enum escodec_mixer_type {
ESCODEC_MIXER_CLASS,
ESCODEC_MIXER_SWVOL,
ESCODEC_MIXER_AMPLIFIER,
ESCODEC_MIXER_ATTENUATOR,
ESCODEC_MIXER_MUTE,
};
static const struct escodec_mixer {
const char * name;
int mixer_class;
int prev, next;
enum escodec_mixer_ctrl ctrl;
enum escodec_mixer_type type;
u_int reg[2];
uint8_t mask[2];
uint8_t maxval;
} escodec_mixers[ESCODEC_MIXER_CTRL_LAST] = {
/*
* Mixer classes
*/
[ESCODEC_OUTPUT_CLASS] = {
.name = AudioCoutputs,
.type = ESCODEC_MIXER_CLASS,
},
[ESCODEC_INPUT_CLASS] = {
.name = AudioCinputs,
.type = ESCODEC_MIXER_CLASS,
},
/*
* Software master volume
*/
[ESCODEC_OUTPUT_MASTER] = {
.name = AudioNmaster,
.mixer_class = ESCODEC_OUTPUT_CLASS,
.prev = AUDIO_MIXER_LAST,
.next = AUDIO_MIXER_LAST,
.type = ESCODEC_MIXER_SWVOL,
},
/*
* Stereo DAC
*/
[ESCODEC_INPUT_DAC] = {
.name = AudioNdac,
.mixer_class = ESCODEC_INPUT_CLASS,
.prev = AUDIO_MIXER_LAST,
.next = ESCODEC_INPUT_DAC_MUTE,
.type = ESCODEC_MIXER_ATTENUATOR,
.reg = {
[AUDIO_MIXER_LEVEL_LEFT] = ESCODEC_DACVOL_L_REG,
[AUDIO_MIXER_LEVEL_RIGHT] = ESCODEC_DACVOL_R_REG,
},
.mask = {
[AUDIO_MIXER_LEVEL_LEFT] = DACVOL_L_DACVOLUME,
[AUDIO_MIXER_LEVEL_RIGHT] = DACVOL_R_DACVOLUME,
},
.maxval = 0xc0,
},
[ESCODEC_INPUT_DAC_MUTE] = {
.name = AudioNmute,
.mixer_class = ESCODEC_INPUT_CLASS,
.prev = ESCODEC_INPUT_DAC,
.next = AUDIO_MIXER_LAST,
.type = ESCODEC_MIXER_MUTE,
.reg = {
[AUDIO_MIXER_LEVEL_MONO] = ESCODEC_DACCTL1_REG,
},
.mask = {
[AUDIO_MIXER_LEVEL_MONO] = DACCTL1_MUTE,
}
},
/*
* Charge Pump Headphones
*/
[ESCODEC_INPUT_HEADPHONE] = {
.name = AudioNheadphone,
.mixer_class = ESCODEC_INPUT_CLASS,
.prev = AUDIO_MIXER_LAST,
.next = AUDIO_MIXER_LAST,
.type = ESCODEC_MIXER_ATTENUATOR,
.reg = {
[AUDIO_MIXER_LEVEL_LEFT] = ESCODEC_HPVOL_REG,
[AUDIO_MIXER_LEVEL_RIGHT] = ESCODEC_HPVOL_REG,
},
.mask = {
[AUDIO_MIXER_LEVEL_LEFT] = HPVOL_HPLVOL,
[AUDIO_MIXER_LEVEL_RIGHT] = HPVOL_HPRVOL,
}
},
/*
* Headphone mixer
*/
[ESCODEC_INPUT_MIXEROUT] = {
.name = AudioNmixerout,
.mixer_class = ESCODEC_INPUT_CLASS,
.prev = AUDIO_MIXER_LAST,
.next = ESCODEC_INPUT_MIXEROUT_MUTE,
.type = ESCODEC_MIXER_AMPLIFIER,
.reg = {
[AUDIO_MIXER_LEVEL_LEFT] = ESCODEC_HPMIXVOL_REG,
[AUDIO_MIXER_LEVEL_RIGHT] = ESCODEC_HPMIXVOL_REG,
},
.mask = {
[AUDIO_MIXER_LEVEL_LEFT] = HPMIXVOL_LHPMIXVOL,
[AUDIO_MIXER_LEVEL_RIGHT] = HPMIXVOL_RHPMIXVOL
},
/*
* Datasheet says this field goes up to 0xb, but values
* above 0x4 result in noisy output in practice.
*/
.maxval = 0x4,
},
[ESCODEC_INPUT_MIXEROUT_MUTE] = {
.name = AudioNmute,
.mixer_class = ESCODEC_INPUT_CLASS,
.prev = ESCODEC_INPUT_MIXEROUT,
.next = AUDIO_MIXER_LAST,
.type = ESCODEC_MIXER_MUTE,
.reg = {
[AUDIO_MIXER_LEVEL_MONO] = ESCODEC_HPMIX_REG,
},
.mask = {
[AUDIO_MIXER_LEVEL_MONO] = HPMIX_LHPMIX_MUTE | HPMIX_RHPMIX_MUTE,
}
},
};
static void
escodec_swvol_codec(audio_filter_arg_t *arg)
{
struct escodec_softc * const sc = arg->context;
const aint_t *src;
aint_t *dst;
u_int sample_count;
u_int i;
src = arg->src;
dst = arg->dst;
sample_count = arg->count * arg->srcfmt->channels;
for (i = 0; i < sample_count; i++) {
aint2_t v = (aint2_t)(*src++);
v = v * sc->sc_swvol / 255;
*dst++ = (aint_t)v;
}
}
static const struct escodec_mixer *
escodec_get_mixer(u_int index)
{
if (index >= ESCODEC_MIXER_CTRL_LAST)
return NULL;
return &escodec_mixers[index];
}
static int
escodec_set_format(void *priv, int setmode,
const audio_params_t *play, const audio_params_t *rec,
audio_filter_reg_t *pfil, audio_filter_reg_t *rfil)
{
struct escodec_softc * const sc = priv;
pfil->codec = escodec_swvol_codec;
pfil->context = sc;
return 0;
}
static int
escodec_set_port(void *priv, mixer_ctrl_t *mc)
{
struct escodec_softc * const sc = priv;
const struct escodec_mixer *mix;
int nvol, shift, ch;
uint8_t val;
if ((mix = escodec_get_mixer(mc->dev)) == NULL)
return ENXIO;
switch (mix->type) {
case ESCODEC_MIXER_SWVOL:
sc->sc_swvol = mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
return 0;
case ESCODEC_MIXER_AMPLIFIER:
case ESCODEC_MIXER_ATTENUATOR:
escodec_lock(sc);
for (ch = 0; ch < 2; ch++) {
val = escodec_read(sc, mix->reg[ch]);
shift = 8 - fls32(__SHIFTOUT_MASK(mix->mask[ch]));
nvol = mc->un.value.level[ch] >> shift;
if (mix->type == ESCODEC_MIXER_ATTENUATOR)
nvol = __SHIFTOUT_MASK(mix->mask[ch]) - nvol;
if (mix->maxval != 0 && nvol > mix->maxval)
nvol = mix->maxval;
val &= ~mix->mask[ch];
val |= __SHIFTIN(nvol, mix->mask[ch]);
escodec_write(sc, mix->reg[ch], val);
}
escodec_unlock(sc);
return 0;
case ESCODEC_MIXER_MUTE:
if (mc->un.ord < 0 || mc->un.ord > 1)
return EINVAL;
escodec_lock(sc);
val = escodec_read(sc, mix->reg[0]);
if (mc->un.ord)
val |= mix->mask[0];
else
val &= ~mix->mask[0];
escodec_write(sc, mix->reg[0], val);
escodec_unlock(sc);
return 0;
default:
return ENXIO;
}
}
static int
escodec_get_port(void *priv, mixer_ctrl_t *mc)
{
struct escodec_softc * const sc = priv;
const struct escodec_mixer *mix;
int nvol, shift, ch;
uint8_t val;
if ((mix = escodec_get_mixer(mc->dev)) == NULL)
return ENXIO;
switch (mix->type) {
case ESCODEC_MIXER_SWVOL:
mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = sc->sc_swvol;
mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = sc->sc_swvol;
return 0;
case ESCODEC_MIXER_AMPLIFIER:
case ESCODEC_MIXER_ATTENUATOR:
escodec_lock(sc);
for (ch = 0; ch < 2; ch++) {
val = escodec_read(sc, mix->reg[ch]);
shift = 8 - fls32(__SHIFTOUT_MASK(mix->mask[ch]));
nvol = __SHIFTOUT(val, mix->mask[ch]);
if (mix->type == ESCODEC_MIXER_ATTENUATOR)
nvol = __SHIFTOUT_MASK(mix->mask[ch]) - nvol;
nvol <<= shift;
mc->un.value.level[ch] = nvol;
}
escodec_unlock(sc);
return 0;
case ESCODEC_MIXER_MUTE:
escodec_lock(sc);
val = escodec_read(sc, mix->reg[0]);
mc->un.ord = (val & mix->mask[0]) != 0;
escodec_unlock(sc);
return 0;
default:
return ENXIO;
}
}
static int
escodec_query_devinfo(void *priv, mixer_devinfo_t *di)
{
const struct escodec_mixer *mix;
if ((mix = escodec_get_mixer(di->index)) == NULL)
return ENXIO;
strcpy(di->label.name, mix->name);
di->mixer_class = mix->mixer_class;
di->next = mix->next;
di->prev = mix->prev;
switch (mix->type) {
case ESCODEC_MIXER_CLASS:
di->type = AUDIO_MIXER_CLASS;
return 0;
case ESCODEC_MIXER_SWVOL:
di->type = AUDIO_MIXER_VALUE;
di->un.v.delta = 1;
di->un.v.num_channels = 2;
strcpy(di->un.v.units.name, AudioNvolume);
return 0;
case ESCODEC_MIXER_AMPLIFIER:
case ESCODEC_MIXER_ATTENUATOR:
di->type = AUDIO_MIXER_VALUE;
di->un.v.delta =
256 / (__SHIFTOUT_MASK(mix->mask[0]) + 1);
di->un.v.num_channels = 2;
strcpy(di->un.v.units.name, AudioNvolume);
return 0;
case ESCODEC_MIXER_MUTE:
di->type = AUDIO_MIXER_ENUM;
di->un.e.num_mem = 2;
strcpy(di->un.e.member[0].label.name, AudioNoff);
di->un.e.member[0].ord = 0;
strcpy(di->un.e.member[1].label.name, AudioNon);
di->un.e.member[1].ord = 1;
return 0;
default:
return ENXIO;
}
}
static const struct audio_hw_if escodec_hw_if = {
.set_format = escodec_set_format,
.set_port = escodec_set_port,
.get_port = escodec_get_port,
.query_devinfo = escodec_query_devinfo,
};
static int
escodec_dai_set_sysclk(audio_dai_tag_t dai, u_int rate, int dir)
{
struct escodec_softc * const sc = audio_dai_private(dai);
int error;
error = clk_set_rate(sc->sc_clk, rate);
if (error != 0)
return error;
return 0;
}
static int
escodec_dai_set_format(audio_dai_tag_t dai, u_int format)
{
struct escodec_softc * const sc = audio_dai_private(dai);
uint8_t sd_clk, sd_fmt, val;
const u_int fmt = __SHIFTOUT(format, AUDIO_DAI_FORMAT_MASK);
const u_int clk = __SHIFTOUT(format, AUDIO_DAI_CLOCK_MASK);
const u_int pol = __SHIFTOUT(format, AUDIO_DAI_POLARITY_MASK);
if (fmt != AUDIO_DAI_FORMAT_I2S)
return EINVAL;
if (clk != AUDIO_DAI_CLOCK_CBS_CFS)
return EINVAL;
switch (pol) {
case AUDIO_DAI_POLARITY_NB_NF:
sd_clk = 0;
sd_fmt = 0;
break;
case AUDIO_DAI_POLARITY_NB_IF:
sd_clk = 0;
sd_fmt = SD_FMT_LRP;
break;
case AUDIO_DAI_POLARITY_IB_NF:
sd_clk = SD_CLK_BCLK_INV;
sd_fmt = 0;
break;
case AUDIO_DAI_POLARITY_IB_IF:
sd_clk = SD_CLK_BCLK_INV;
sd_fmt = SD_FMT_LRP;
break;
}
escodec_lock(sc);
val = escodec_read(sc, ESCODEC_SD_CLK_REG);
val &= ~(SD_CLK_MSC|SD_CLK_BCLK_INV);
val |= sd_clk;
escodec_write(sc, ESCODEC_SD_CLK_REG, val);
val = escodec_read(sc, ESCODEC_SD_ADC_REG);
val &= ~SD_FMT_MASK;
val |= __SHIFTIN(SD_FMT_I2S, SD_FMT_MASK);
val &= ~SD_FMT_LRP;
val |= sd_fmt;
escodec_write(sc, ESCODEC_SD_ADC_REG, val);
val = escodec_read(sc, ESCODEC_SD_DAC_REG);
val &= ~SD_FMT_MASK;
val |= __SHIFTIN(SD_FMT_I2S, SD_FMT_MASK);
val &= ~SD_FMT_LRP;
val |= sd_fmt;
escodec_write(sc, ESCODEC_SD_DAC_REG, val);
val = escodec_read(sc, ESCODEC_CLKMAN1_REG);
val |= CLKMAN1_MCLK_ON;
val |= CLKMAN1_BCLK_ON;
val |= CLKMAN1_CLK_CP_ON;
val |= CLKMAN1_CLK_DAC_ON;
val |= CLKMAN1_ANACLK_DAC_ON;
escodec_write(sc, ESCODEC_CLKMAN1_REG, val);
escodec_unlock(sc);
return 0;
}
static int
escodec_dai_add_device(audio_dai_tag_t dai, audio_dai_tag_t aux)
{
struct escodec_softc * const sc = audio_dai_private(dai);
if (sc->sc_amplifier != NULL)
return 0;
sc->sc_amplifier = aux;
return 0;
}
static audio_dai_tag_t
escodec_dai_get_tag(device_t dev, const void *data, size_t len)
{
struct escodec_softc * const sc = device_private(dev);
if (len != 4)
return NULL;
return &sc->sc_dai;
}
static struct fdtbus_dai_controller_func escodec_dai_funcs = {
.get_tag = escodec_dai_get_tag
};
static void
escodec_init(struct escodec_softc *sc)
{
uint8_t val;
escodec_lock(sc);
escodec_write(sc, ESCODEC_RESET_REG, RESET_ALL);
delay(5000);
escodec_write(sc, ESCODEC_RESET_REG, RESET_CSM_ON);
delay(30000);
escodec_write(sc, ESCODEC_VMID_REG, 0xff);
escodec_write(sc, ESCODEC_ADC_OSR_REG, 0x32);
val = escodec_read(sc, ESCODEC_SD_ADC_REG);
val &= ~SD_FMT_WL;
val |= __SHIFTIN(SD_FMT_WL_16, SD_FMT_WL);
escodec_write(sc, ESCODEC_SD_ADC_REG, val);
val = escodec_read(sc, ESCODEC_SD_DAC_REG);
val &= ~SD_FMT_WL;
val |= __SHIFTIN(SD_FMT_WL_16, SD_FMT_WL);
escodec_write(sc, ESCODEC_SD_DAC_REG, val);
/* Power up */
escodec_write(sc, ESCODEC_PDN_REG, 0);
/* Route DAC signal to HP mixer */
val = HPMIXRT_LD2LHPMIX | HPMIXRT_RD2RHPMIX;
escodec_write(sc, ESCODEC_HPMIXRT_REG, val);
/* Power up DAC */
escodec_write(sc, ESCODEC_DACPWR_REG, 0);
/* Power up HP mixer and unmute */
escodec_write(sc, ESCODEC_HPMIX_REG, 0);
/* Power up HP output driver */
val = escodec_read(sc, ESCODEC_HPPWR_REG);
val &= ~HPPWR_PDN_CPHP;
escodec_write(sc, ESCODEC_HPPWR_REG, val);
/* Power up HP charge pump circuits */
val = escodec_read(sc, ESCODEC_CPPWR_REG);
val &= ~CPPWR_PDN_CP;
escodec_write(sc, ESCODEC_CPPWR_REG, val);
/* Set LIN1/RIN1 as inputs for HP mixer */
escodec_write(sc, ESCODEC_HPSEL_REG, 0);
/* Power up HP output driver calibration */
val = escodec_read(sc, ESCODEC_HPVOL_REG);
val &= ~HPVOL_PDN_LICAL;
val &= ~HPVOL_PDN_RICAL;
escodec_write(sc, ESCODEC_HPVOL_REG, val);
/* Set headphone mixer to -6dB */
escodec_write(sc, ESCODEC_HPMIXVOL_REG, 0x44);
/* Set charge pump headphone to -48dB */
escodec_write(sc, ESCODEC_HPVOL_REG, 0x33);
/* Set DAC to 0dB */
escodec_write(sc, ESCODEC_DACVOL_L_REG, 0);
escodec_write(sc, ESCODEC_DACVOL_R_REG, 0);
/* Enable HP output */
val = HPOUTEN_EN_HPL | HPOUTEN_EN_HPR |
HPOUTEN_HPL_OUTEN | HPOUTEN_HPR_OUTEN;
escodec_write(sc, ESCODEC_HPOUTEN_REG, val);
escodec_unlock(sc);
}
static int
escodec_match(device_t parent, cfdata_t match, void *aux)
{
struct i2c_attach_args *ia = aux;
int match_result;
if (iic_use_direct_match(ia, match, compat_data, &match_result))
return match_result;
/* This device is direct-config only */
return 0;
}
static void
escodec_attach(device_t parent, device_t self, void *aux)
{
struct escodec_softc * const sc = device_private(self);
struct i2c_attach_args * const ia = aux;
const int phandle = ia->ia_cookie;
sc->sc_dev = self;
sc->sc_i2c = ia->ia_tag;
sc->sc_addr = ia->ia_addr;
sc->sc_phandle = ia->ia_cookie;
sc->sc_swvol = 0xff;
sc->sc_clk = fdtbus_clock_get(phandle, "mclk");
if (sc->sc_clk == NULL || clk_enable(sc->sc_clk) != 0) {
aprint_error(": couldn't enable mclk\n");
return;
}
aprint_naive("\n");
aprint_normal(": Everest Semi ES8316 Audio CODEC\n");
escodec_init(sc);
sc->sc_dai.dai_set_sysclk = escodec_dai_set_sysclk;
sc->sc_dai.dai_set_format = escodec_dai_set_format;
sc->sc_dai.dai_add_device = escodec_dai_add_device;
sc->sc_dai.dai_hw_if = &escodec_hw_if;
sc->sc_dai.dai_dev = self;
sc->sc_dai.dai_priv = sc;
fdtbus_register_dai_controller(self, phandle, &escodec_dai_funcs);
}
CFATTACH_DECL_NEW(es8316ac, sizeof(struct escodec_softc),
escodec_match, escodec_attach, NULL, NULL);
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