Module Name: src
Committed By: jmcneill
Date: Thu Jan 2 22:06:59 UTC 2020
Modified Files:
src/sys/dev/i2c: files.i2c
Added Files:
src/sys/dev/i2c: es8316ac.c
Log Message:
Add driver for Everest Semi ES8316 Low Power Audio CODEC
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/sys/dev/i2c/es8316ac.c
cvs rdiff -u -r1.104 -r1.105 src/sys/dev/i2c/files.i2c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/i2c/files.i2c
diff -u src/sys/dev/i2c/files.i2c:1.104 src/sys/dev/i2c/files.i2c:1.105
--- src/sys/dev/i2c/files.i2c:1.104 Sun Nov 3 22:57:52 2019
+++ src/sys/dev/i2c/files.i2c Thu Jan 2 22:06:59 2020
@@ -1,4 +1,4 @@
-# $NetBSD: files.i2c,v 1.104 2019/11/03 22:57:52 jmcneill Exp $
+# $NetBSD: files.i2c,v 1.105 2020/01/02 22:06:59 jmcneill Exp $
obsolete defflag opt_i2cbus.h I2C_SCAN
define i2cbus { }
@@ -378,3 +378,8 @@ file dev/i2c/twl4030.c twl
device tdahdmi: edid, videomode, drmkms, drmkms_i2c
attach tdahdmi at iic
file dev/i2c/tda19988.c tdahdmi
+
+# Everest Semi ES8316 Low Power Audio CODEC
+device es8316ac
+attach es8316ac at iic
+file dev/i2c/es8316ac.c es8316ac
Added files:
Index: src/sys/dev/i2c/es8316ac.c
diff -u /dev/null src/sys/dev/i2c/es8316ac.c:1.1
--- /dev/null Thu Jan 2 22:06:59 2020
+++ src/sys/dev/i2c/es8316ac.c Thu Jan 2 22:06:59 2020
@@ -0,0 +1,753 @@
+/* $NetBSD: es8316ac.c,v 1.1 2020/01/02 22:06:59 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2020 Jared McNeill <[email protected]>
+ * 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 1.1 2020/01/02 22:06:59 jmcneill 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, I2C_F_POLL) != 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, I2C_F_POLL);
+}
+
+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_trigger_output(void *priv, void *start, void *end, int blksize,
+ void (*intr)(void *), void *intarg, const audio_params_t *params)
+{
+ struct escodec_softc * const sc = priv;
+ uint8_t val;
+
+ escodec_lock(sc);
+
+ /* 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);
+
+ return 0;
+}
+
+static int
+escodec_halt_output(void *priv)
+{
+ struct escodec_softc * const sc = priv;
+
+ escodec_lock(sc);
+
+ /* Disable HP output */
+ escodec_write(sc, ESCODEC_HPOUTEN_REG, 0);
+
+ escodec_unlock(sc);
+
+ return 0;
+}
+
+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 = {
+ .trigger_output = escodec_trigger_output,
+ .halt_output = escodec_halt_output,
+ .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);
+
+ 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);
