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18236370a0
linux/sound/soc/codecs/rt711.c
Pierre-Louis Bossart 18236370a0
ASoC: rt711-sdw: fix race condition on system suspend 
In previous commits we cancelled deferred work, but there is still a
window of time where a new interrupt could result in new deferred work
executed after the link is disabled, leading to an IO error. While we
did not see this IO error on RT711-based platforms, the code pattern
is similar to the RT700 case where the IO error was noted, so the fix
is added for consistency.

This patch uses an 'disable_irq_lock' mutex to prevent new interrupts
from happening after the start of the system suspend. The choice of a
mutex v. a spinlock is mainly due to the time required to clear
interrupts, which requires a command to be transmitted by the
SoundWire host IP and acknowledged with an interrupt. The
'interrupt_callback' routine is also not meant to be called from an
interrupt context.

An additional 'disable_irq' flag prevents race conditions where the
status changes before the interrupts are disabled, but the workqueue
handling status changes is scheduled after the completion of the
system suspend. On resume the interrupts are re-enabled already by the
io_init routine so we only clear the flag.

BugLink: https://github.com/thesofproject/linux/issues/2943
Fixes: 501ef01339 ('ASoC: rt711: wait for the delayed work to finish when the system suspends')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20210614180815.153711-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-06-21 13:00:44 +01:00

1314 lines
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// SPDX-License-Identifier: GPL-2.0
//
// rt711.c -- rt711 ALSA SoC audio driver
//
// Copyright(c) 2019 Realtek Semiconductor Corp.
//
//
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm_runtime.h>
#include <linux/pm.h>
#include <linux/soundwire/sdw.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <sound/hda_verbs.h>
#include <sound/jack.h>
#include "rt711.h"
static int rt711_index_write(struct regmap *regmap,
unsigned int nid, unsigned int reg, unsigned int value)
{
int ret;
unsigned int addr = ((RT711_PRIV_INDEX_W_H | nid) << 8) | reg;
ret = regmap_write(regmap, addr, value);
if (ret < 0)
pr_err("Failed to set private value: %06x <= %04x ret=%d\n",
addr, value, ret);
return ret;
}
static int rt711_index_read(struct regmap *regmap,
unsigned int nid, unsigned int reg, unsigned int *value)
{
int ret;
unsigned int addr = ((RT711_PRIV_INDEX_W_H | nid) << 8) | reg;
*value = 0;
ret = regmap_read(regmap, addr, value);
if (ret < 0)
pr_err("Failed to get private value: %06x => %04x ret=%d\n",
addr, *value, ret);
return ret;
}
static int rt711_index_update_bits(struct regmap *regmap, unsigned int nid,
unsigned int reg, unsigned int mask, unsigned int val)
{
unsigned int tmp, orig;
int ret;
ret = rt711_index_read(regmap, nid, reg, &orig);
if (ret < 0)
return ret;
tmp = orig & ~mask;
tmp |= val & mask;
return rt711_index_write(regmap, nid, reg, tmp);
}
static void rt711_reset(struct regmap *regmap)
{
regmap_write(regmap, RT711_FUNC_RESET, 0);
rt711_index_update_bits(regmap, RT711_VENDOR_REG,
RT711_PARA_VERB_CTL, RT711_HIDDEN_REG_SW_RESET,
RT711_HIDDEN_REG_SW_RESET);
}
static int rt711_calibration(struct rt711_priv *rt711)
{
unsigned int val, loop = 0;
struct device *dev;
struct regmap *regmap = rt711->regmap;
int ret = 0;
mutex_lock(&rt711->calibrate_mutex);
regmap_write(rt711->regmap,
RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
dev = regmap_get_device(regmap);
/* Calibration manual mode */
rt711_index_update_bits(regmap, RT711_VENDOR_REG, RT711_FSM_CTL,
0xf, 0x0);
/* trigger */
rt711_index_update_bits(regmap, RT711_VENDOR_CALI,
RT711_DAC_DC_CALI_CTL1, RT711_DAC_DC_CALI_TRIGGER,
RT711_DAC_DC_CALI_TRIGGER);
/* wait for calibration process */
rt711_index_read(regmap, RT711_VENDOR_CALI,
RT711_DAC_DC_CALI_CTL1, &val);
while (val & RT711_DAC_DC_CALI_TRIGGER) {
if (loop >= 500) {
pr_err("%s, calibration time-out!\n",
__func__);
ret = -ETIMEDOUT;
break;
}
loop++;
usleep_range(10000, 11000);
rt711_index_read(regmap, RT711_VENDOR_CALI,
RT711_DAC_DC_CALI_CTL1, &val);
}
/* depop mode */
rt711_index_update_bits(regmap, RT711_VENDOR_REG,
RT711_FSM_CTL, 0xf, RT711_DEPOP_CTL);
regmap_write(rt711->regmap,
RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
mutex_unlock(&rt711->calibrate_mutex);
dev_dbg(dev, "%s calibration complete, ret=%d\n", __func__, ret);
return ret;
}
static unsigned int rt711_button_detect(struct rt711_priv *rt711)
{
unsigned int btn_type = 0, val80, val81;
int ret;
ret = rt711_index_read(rt711->regmap, RT711_VENDOR_REG,
RT711_IRQ_FLAG_TABLE1, &val80);
if (ret < 0)
goto read_error;
ret = rt711_index_read(rt711->regmap, RT711_VENDOR_REG,
RT711_IRQ_FLAG_TABLE2, &val81);
if (ret < 0)
goto read_error;
val80 &= 0x0381;
val81 &= 0xff00;
switch (val80) {
case 0x0200:
case 0x0100:
case 0x0080:
btn_type |= SND_JACK_BTN_0;
break;
case 0x0001:
btn_type |= SND_JACK_BTN_3;
break;
}
switch (val81) {
case 0x8000:
case 0x4000:
case 0x2000:
btn_type |= SND_JACK_BTN_1;
break;
case 0x1000:
case 0x0800:
case 0x0400:
btn_type |= SND_JACK_BTN_2;
break;
case 0x0200:
case 0x0100:
btn_type |= SND_JACK_BTN_3;
break;
}
read_error:
return btn_type;
}
static int rt711_headset_detect(struct rt711_priv *rt711)
{
unsigned int buf, loop = 0;
int ret;
unsigned int jack_status = 0, reg;
ret = rt711_index_read(rt711->regmap, RT711_VENDOR_REG,
RT711_COMBO_JACK_AUTO_CTL2, &buf);
if (ret < 0)
goto io_error;
while (loop < 500 &&
(buf & RT711_COMBOJACK_AUTO_DET_STATUS) == 0) {
loop++;
usleep_range(9000, 10000);
ret = rt711_index_read(rt711->regmap, RT711_VENDOR_REG,
RT711_COMBO_JACK_AUTO_CTL2, &buf);
if (ret < 0)
goto io_error;
reg = RT711_VERB_GET_PIN_SENSE | RT711_HP_OUT;
ret = regmap_read(rt711->regmap, reg, &jack_status);
if (ret < 0)
goto io_error;
if ((jack_status & (1 << 31)) == 0)
goto remove_error;
}
if (loop >= 500)
goto to_error;
if (buf & RT711_COMBOJACK_AUTO_DET_TRS)
rt711->jack_type = SND_JACK_HEADPHONE;
else if ((buf & RT711_COMBOJACK_AUTO_DET_CTIA) ||
(buf & RT711_COMBOJACK_AUTO_DET_OMTP))
rt711->jack_type = SND_JACK_HEADSET;
return 0;
to_error:
ret = -ETIMEDOUT;
pr_err_ratelimited("Time-out error in %s\n", __func__);
return ret;
io_error:
pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
return ret;
remove_error:
pr_err_ratelimited("Jack removal in %s\n", __func__);
return -ENODEV;
}
static void rt711_jack_detect_handler(struct work_struct *work)
{
struct rt711_priv *rt711 =
container_of(work, struct rt711_priv, jack_detect_work.work);
int btn_type = 0, ret;
unsigned int jack_status = 0, reg;
if (!rt711->hs_jack)
return;
if (!rt711->component->card->instantiated)
return;
reg = RT711_VERB_GET_PIN_SENSE | RT711_HP_OUT;
ret = regmap_read(rt711->regmap, reg, &jack_status);
if (ret < 0)
goto io_error;
/* pin attached */
if (jack_status & (1 << 31)) {
/* jack in */
if (rt711->jack_type == 0) {
ret = rt711_headset_detect(rt711);
if (ret < 0)
return;
if (rt711->jack_type == SND_JACK_HEADSET)
btn_type = rt711_button_detect(rt711);
} else if (rt711->jack_type == SND_JACK_HEADSET) {
/* jack is already in, report button event */
btn_type = rt711_button_detect(rt711);
}
} else {
/* jack out */
rt711->jack_type = 0;
}
dev_dbg(&rt711->slave->dev,
"in %s, jack_type=0x%x\n", __func__, rt711->jack_type);
dev_dbg(&rt711->slave->dev,
"in %s, btn_type=0x%x\n", __func__, btn_type);
snd_soc_jack_report(rt711->hs_jack, rt711->jack_type | btn_type,
SND_JACK_HEADSET |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3);
if (btn_type) {
/* button released */
snd_soc_jack_report(rt711->hs_jack, rt711->jack_type,
SND_JACK_HEADSET |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3);
mod_delayed_work(system_power_efficient_wq,
&rt711->jack_btn_check_work, msecs_to_jiffies(200));
}
return;
io_error:
pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
}
static void rt711_btn_check_handler(struct work_struct *work)
{
struct rt711_priv *rt711 = container_of(work, struct rt711_priv,
jack_btn_check_work.work);
int btn_type = 0, ret;
unsigned int jack_status = 0, reg;
reg = RT711_VERB_GET_PIN_SENSE | RT711_HP_OUT;
ret = regmap_read(rt711->regmap, reg, &jack_status);
if (ret < 0)
goto io_error;
/* pin attached */
if (jack_status & (1 << 31)) {
if (rt711->jack_type == SND_JACK_HEADSET) {
/* jack is already in, report button event */
btn_type = rt711_button_detect(rt711);
}
} else {
rt711->jack_type = 0;
}
/* cbj comparator */
ret = rt711_index_read(rt711->regmap, RT711_VENDOR_REG,
RT711_COMBO_JACK_AUTO_CTL2, &reg);
if (ret < 0)
goto io_error;
if ((reg & 0xf0) == 0xf0)
btn_type = 0;
dev_dbg(&rt711->slave->dev,
"%s, btn_type=0x%x\n", __func__, btn_type);
snd_soc_jack_report(rt711->hs_jack, rt711->jack_type | btn_type,
SND_JACK_HEADSET |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3);
if (btn_type) {
/* button released */
snd_soc_jack_report(rt711->hs_jack, rt711->jack_type,
SND_JACK_HEADSET |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3);
mod_delayed_work(system_power_efficient_wq,
&rt711->jack_btn_check_work, msecs_to_jiffies(200));
}
return;
io_error:
pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
}
static void rt711_jack_init(struct rt711_priv *rt711)
{
struct snd_soc_dapm_context *dapm =
snd_soc_component_get_dapm(rt711->component);
mutex_lock(&rt711->calibrate_mutex);
/* power on */
if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
regmap_write(rt711->regmap,
RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
if (rt711->hs_jack) {
/* unsolicited response & IRQ control */
regmap_write(rt711->regmap,
RT711_SET_MIC2_UNSOLICITED_ENABLE, 0x82);
regmap_write(rt711->regmap,
RT711_SET_HP_UNSOLICITED_ENABLE, 0x81);
regmap_write(rt711->regmap,
RT711_SET_INLINE_UNSOLICITED_ENABLE, 0x83);
rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
0x10, 0x2420);
rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
0x19, 0x2e11);
switch (rt711->jd_src) {
case RT711_JD1:
/* default settings was already for JD1 */
break;
case RT711_JD2:
rt711_index_update_bits(rt711->regmap, RT711_VENDOR_REG,
RT711_JD_CTL2, RT711_JD2_2PORT_200K_DECODE_HP |
RT711_HP_JD_SEL_JD2,
RT711_JD2_2PORT_200K_DECODE_HP |
RT711_HP_JD_SEL_JD2);
rt711_index_update_bits(rt711->regmap, RT711_VENDOR_REG,
RT711_CC_DET1,
RT711_HP_JD_FINAL_RESULT_CTL_JD12,
RT711_HP_JD_FINAL_RESULT_CTL_JD12);
break;
default:
dev_warn(rt711->component->dev, "Wrong JD source\n");
break;
}
dev_dbg(&rt711->slave->dev, "in %s enable\n", __func__);
mod_delayed_work(system_power_efficient_wq,
&rt711->jack_detect_work, msecs_to_jiffies(250));
} else {
regmap_write(rt711->regmap,
RT711_SET_MIC2_UNSOLICITED_ENABLE, 0x00);
regmap_write(rt711->regmap,
RT711_SET_HP_UNSOLICITED_ENABLE, 0x00);
regmap_write(rt711->regmap,
RT711_SET_INLINE_UNSOLICITED_ENABLE, 0x00);
dev_dbg(&rt711->slave->dev, "in %s disable\n", __func__);
}
/* power off */
if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
regmap_write(rt711->regmap,
RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
mutex_unlock(&rt711->calibrate_mutex);
}
static int rt711_set_jack_detect(struct snd_soc_component *component,
struct snd_soc_jack *hs_jack, void *data)
{
struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
rt711->hs_jack = hs_jack;
if (!rt711->hw_init) {
dev_dbg(&rt711->slave->dev,
"%s hw_init not ready yet\n", __func__);
return 0;
}
rt711_jack_init(rt711);
return 0;
}
static void rt711_get_gain(struct rt711_priv *rt711, unsigned int addr_h,
unsigned int addr_l, unsigned int val_h,
unsigned int *r_val, unsigned int *l_val)
{
/* R Channel */
*r_val = (val_h << 8);
regmap_read(rt711->regmap, addr_l, r_val);
/* L Channel */
val_h |= 0x20;
*l_val = (val_h << 8);
regmap_read(rt711->regmap, addr_h, l_val);
}
/* For Verb-Set Amplifier Gain (Verb ID = 3h) */
static int rt711_set_amp_gain_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
struct snd_soc_dapm_context *dapm =
snd_soc_component_get_dapm(component);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
unsigned int addr_h, addr_l, val_h, val_ll, val_lr;
unsigned int read_ll, read_rl;
int i;
mutex_lock(&rt711->calibrate_mutex);
/* Can't use update bit function, so read the original value first */
addr_h = mc->reg;
addr_l = mc->rreg;
if (mc->shift == RT711_DIR_OUT_SFT) /* output */
val_h = 0x80;
else /* input */
val_h = 0x0;
rt711_get_gain(rt711, addr_h, addr_l, val_h, &read_rl, &read_ll);
/* L Channel */
if (mc->invert) {
/* for mute/unmute */
val_ll = (mc->max - ucontrol->value.integer.value[0])
<< RT711_MUTE_SFT;
/* keep gain */
read_ll = read_ll & 0x7f;
val_ll |= read_ll;
} else {
/* for gain */
val_ll = ((ucontrol->value.integer.value[0]) & 0x7f);
if (val_ll > mc->max)
val_ll = mc->max;
/* keep mute status */
read_ll = read_ll & (1 << RT711_MUTE_SFT);
val_ll |= read_ll;
}
if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
regmap_write(rt711->regmap,
RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
/* R Channel */
if (mc->invert) {
/* for mute/unmute */
val_lr = (mc->max - ucontrol->value.integer.value[1])
<< RT711_MUTE_SFT;
/* keep gain */
read_rl = read_rl & 0x7f;
val_lr |= read_rl;
} else {
/* for gain */
val_lr = ((ucontrol->value.integer.value[1]) & 0x7f);
if (val_lr > mc->max)
val_lr = mc->max;
/* keep mute status */
read_rl = read_rl & (1 << RT711_MUTE_SFT);
val_lr |= read_rl;
}
for (i = 0; i < 3; i++) { /* retry 3 times at most */
if (val_ll == val_lr) {
/* Set both L/R channels at the same time */
val_h = (1 << mc->shift) | (3 << 4);
regmap_write(rt711->regmap,
addr_h, (val_h << 8 | val_ll));
regmap_write(rt711->regmap,
addr_l, (val_h << 8 | val_ll));
} else {
/* Lch*/
val_h = (1 << mc->shift) | (1 << 5);
regmap_write(rt711->regmap,
addr_h, (val_h << 8 | val_ll));
/* Rch */
val_h = (1 << mc->shift) | (1 << 4);
regmap_write(rt711->regmap,
addr_l, (val_h << 8 | val_lr));
}
/* check result */
if (mc->shift == RT711_DIR_OUT_SFT) /* output */
val_h = 0x80;
else /* input */
val_h = 0x0;
rt711_get_gain(rt711, addr_h, addr_l, val_h,
&read_rl, &read_ll);
if (read_rl == val_lr && read_ll == val_ll)
break;
}
if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
regmap_write(rt711->regmap,
RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
mutex_unlock(&rt711->calibrate_mutex);
return 0;
}
static int rt711_set_amp_gain_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
unsigned int addr_h, addr_l, val_h;
unsigned int read_ll, read_rl;
/* switch to get command */
addr_h = mc->reg;
addr_l = mc->rreg;
if (mc->shift == RT711_DIR_OUT_SFT) /* output */
val_h = 0x80;
else /* input */
val_h = 0x0;
rt711_get_gain(rt711, addr_h, addr_l, val_h, &read_rl, &read_ll);
if (mc->invert) {
/* mute/unmute for switch controls */
read_ll = !((read_ll & 0x80) >> RT711_MUTE_SFT);
read_rl = !((read_rl & 0x80) >> RT711_MUTE_SFT);
} else {
/* for gain volume controls */
read_ll = read_ll & 0x7f;
read_rl = read_rl & 0x7f;
}
ucontrol->value.integer.value[0] = read_ll;
ucontrol->value.integer.value[1] = read_rl;
return 0;
}
static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -6525, 75, 0);
static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -1725, 75, 0);
static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 1000, 0);
static const struct snd_kcontrol_new rt711_snd_controls[] = {
SOC_DOUBLE_R_EXT_TLV("DAC Surr Playback Volume",
RT711_SET_GAIN_DAC2_H, RT711_SET_GAIN_DAC2_L,
RT711_DIR_OUT_SFT, 0x57, 0,
rt711_set_amp_gain_get, rt711_set_amp_gain_put, out_vol_tlv),
SOC_DOUBLE_R_EXT("ADC 08 Capture Switch",
RT711_SET_GAIN_ADC2_H, RT711_SET_GAIN_ADC2_L,
RT711_DIR_IN_SFT, 1, 1,
rt711_set_amp_gain_get, rt711_set_amp_gain_put),
SOC_DOUBLE_R_EXT("ADC 09 Capture Switch",
RT711_SET_GAIN_ADC1_H, RT711_SET_GAIN_ADC1_L,
RT711_DIR_IN_SFT, 1, 1,
rt711_set_amp_gain_get, rt711_set_amp_gain_put),
SOC_DOUBLE_R_EXT_TLV("ADC 08 Capture Volume",
RT711_SET_GAIN_ADC2_H, RT711_SET_GAIN_ADC2_L,
RT711_DIR_IN_SFT, 0x3f, 0,
rt711_set_amp_gain_get, rt711_set_amp_gain_put, in_vol_tlv),
SOC_DOUBLE_R_EXT_TLV("ADC 09 Capture Volume",
RT711_SET_GAIN_ADC1_H, RT711_SET_GAIN_ADC1_L,
RT711_DIR_IN_SFT, 0x3f, 0,
rt711_set_amp_gain_get, rt711_set_amp_gain_put, in_vol_tlv),
SOC_DOUBLE_R_EXT_TLV("AMIC Volume",
RT711_SET_GAIN_AMIC_H, RT711_SET_GAIN_AMIC_L,
RT711_DIR_IN_SFT, 3, 0,
rt711_set_amp_gain_get, rt711_set_amp_gain_put, mic_vol_tlv),
SOC_DOUBLE_R_EXT_TLV("DMIC1 Volume",
RT711_SET_GAIN_DMIC1_H, RT711_SET_GAIN_DMIC1_L,
RT711_DIR_IN_SFT, 3, 0,
rt711_set_amp_gain_get, rt711_set_amp_gain_put, mic_vol_tlv),
SOC_DOUBLE_R_EXT_TLV("DMIC2 Volume",
RT711_SET_GAIN_DMIC2_H, RT711_SET_GAIN_DMIC2_L,
RT711_DIR_IN_SFT, 3, 0,
rt711_set_amp_gain_get, rt711_set_amp_gain_put, mic_vol_tlv),
};
static int rt711_mux_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component =
snd_soc_dapm_kcontrol_component(kcontrol);
struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
unsigned int reg, val = 0, nid;
int ret;
if (strstr(ucontrol->id.name, "ADC 22 Mux"))
nid = RT711_MIXER_IN1;
else if (strstr(ucontrol->id.name, "ADC 23 Mux"))
nid = RT711_MIXER_IN2;
else
return -EINVAL;
/* vid = 0xf01 */
reg = RT711_VERB_SET_CONNECT_SEL | nid;
ret = regmap_read(rt711->regmap, reg, &val);
if (ret < 0) {
dev_err(component->dev, "%s: sdw read failed: %d\n",
__func__, ret);
return ret;
}
ucontrol->value.enumerated.item[0] = val;
return 0;
}
static int rt711_mux_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component =
snd_soc_dapm_kcontrol_component(kcontrol);
struct snd_soc_dapm_context *dapm =
snd_soc_dapm_kcontrol_dapm(kcontrol);
struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int *item = ucontrol->value.enumerated.item;
unsigned int val, val2 = 0, change, reg, nid;
int ret;
if (item[0] >= e->items)
return -EINVAL;
if (strstr(ucontrol->id.name, "ADC 22 Mux"))
nid = RT711_MIXER_IN1;
else if (strstr(ucontrol->id.name, "ADC 23 Mux"))
nid = RT711_MIXER_IN2;
else
return -EINVAL;
/* Verb ID = 0x701h */
val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
reg = RT711_VERB_SET_CONNECT_SEL | nid;
ret = regmap_read(rt711->regmap, reg, &val2);
if (ret < 0) {
dev_err(component->dev, "%s: sdw read failed: %d\n",
__func__, ret);
return ret;
}
if (val == val2)
change = 0;
else
change = 1;
if (change) {
reg = RT711_VERB_SET_CONNECT_SEL | nid;
regmap_write(rt711->regmap, reg, val);
}
snd_soc_dapm_mux_update_power(dapm, kcontrol,
item[0], e, NULL);
return change;
}
static const char * const adc_mux_text[] = {
"MIC2",
"LINE1",
"LINE2",
"DMIC",
};
static SOC_ENUM_SINGLE_DECL(
rt711_adc22_enum, SND_SOC_NOPM, 0, adc_mux_text);
static SOC_ENUM_SINGLE_DECL(
rt711_adc23_enum, SND_SOC_NOPM, 0, adc_mux_text);
static const struct snd_kcontrol_new rt711_adc22_mux =
SOC_DAPM_ENUM_EXT("ADC 22 Mux", rt711_adc22_enum,
rt711_mux_get, rt711_mux_put);
static const struct snd_kcontrol_new rt711_adc23_mux =
SOC_DAPM_ENUM_EXT("ADC 23 Mux", rt711_adc23_enum,
rt711_mux_get, rt711_mux_put);
static int rt711_dac_surround_event(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 rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
unsigned int val_h = (1 << RT711_DIR_OUT_SFT) | (0x3 << 4);
unsigned int val_l;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
regmap_write(rt711->regmap,
RT711_SET_STREAMID_DAC2, 0x10);
val_l = 0x00;
regmap_write(rt711->regmap,
RT711_SET_GAIN_HP_H, (val_h << 8 | val_l));
break;
case SND_SOC_DAPM_PRE_PMD:
val_l = (1 << RT711_MUTE_SFT);
regmap_write(rt711->regmap,
RT711_SET_GAIN_HP_H, (val_h << 8 | val_l));
usleep_range(50000, 55000);
regmap_write(rt711->regmap,
RT711_SET_STREAMID_DAC2, 0x00);
break;
}
return 0;
}
static int rt711_adc_09_event(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 rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
regmap_write(rt711->regmap,
RT711_SET_STREAMID_ADC1, 0x10);
break;
case SND_SOC_DAPM_PRE_PMD:
regmap_write(rt711->regmap,
RT711_SET_STREAMID_ADC1, 0x00);
break;
}
return 0;
}
static int rt711_adc_08_event(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 rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
regmap_write(rt711->regmap,
RT711_SET_STREAMID_ADC2, 0x10);
break;
case SND_SOC_DAPM_PRE_PMD:
regmap_write(rt711->regmap,
RT711_SET_STREAMID_ADC2, 0x00);
break;
}
return 0;
}
static const struct snd_soc_dapm_widget rt711_dapm_widgets[] = {
SND_SOC_DAPM_OUTPUT("HP"),
SND_SOC_DAPM_INPUT("MIC2"),
SND_SOC_DAPM_INPUT("DMIC1"),
SND_SOC_DAPM_INPUT("DMIC2"),
SND_SOC_DAPM_INPUT("LINE1"),
SND_SOC_DAPM_INPUT("LINE2"),
SND_SOC_DAPM_DAC_E("DAC Surround", NULL, SND_SOC_NOPM, 0, 0,
rt711_dac_surround_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_ADC_E("ADC 09", NULL, SND_SOC_NOPM, 0, 0,
rt711_adc_09_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_ADC_E("ADC 08", NULL, SND_SOC_NOPM, 0, 0,
rt711_adc_08_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_MUX("ADC 22 Mux", SND_SOC_NOPM, 0, 0,
&rt711_adc22_mux),
SND_SOC_DAPM_MUX("ADC 23 Mux", SND_SOC_NOPM, 0, 0,
&rt711_adc23_mux),
SND_SOC_DAPM_AIF_IN("DP3RX", "DP3 Playback", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT("DP4TX", "DP4 Capture", 0, SND_SOC_NOPM, 0, 0),
};
static const struct snd_soc_dapm_route rt711_audio_map[] = {
{"DAC Surround", NULL, "DP3RX"},
{"DP2TX", NULL, "ADC 09"},
{"DP4TX", NULL, "ADC 08"},
{"ADC 09", NULL, "ADC 22 Mux"},
{"ADC 08", NULL, "ADC 23 Mux"},
{"ADC 22 Mux", "DMIC", "DMIC1"},
{"ADC 22 Mux", "LINE1", "LINE1"},
{"ADC 22 Mux", "LINE2", "LINE2"},
{"ADC 22 Mux", "MIC2", "MIC2"},
{"ADC 23 Mux", "DMIC", "DMIC2"},
{"ADC 23 Mux", "LINE1", "LINE1"},
{"ADC 23 Mux", "LINE2", "LINE2"},
{"ADC 23 Mux", "MIC2", "MIC2"},
{"HP", NULL, "DAC Surround"},
};
static int rt711_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
struct snd_soc_dapm_context *dapm =
snd_soc_component_get_dapm(component);
struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
switch (level) {
case SND_SOC_BIAS_PREPARE:
if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
regmap_write(rt711->regmap,
RT711_SET_AUDIO_POWER_STATE,
AC_PWRST_D0);
}
break;
case SND_SOC_BIAS_STANDBY:
mutex_lock(&rt711->calibrate_mutex);
regmap_write(rt711->regmap,
RT711_SET_AUDIO_POWER_STATE,
AC_PWRST_D3);
mutex_unlock(&rt711->calibrate_mutex);
break;
default:
break;
}
return 0;
}
static int rt711_parse_dt(struct rt711_priv *rt711, struct device *dev)
{
device_property_read_u32(dev, "realtek,jd-src",
&rt711->jd_src);
return 0;
}
static int rt711_probe(struct snd_soc_component *component)
{
struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
rt711_parse_dt(rt711, &rt711->slave->dev);
rt711->component = component;
return 0;
}
static void rt711_remove(struct snd_soc_component *component)
{
struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
regcache_cache_only(rt711->regmap, true);
}
static const struct snd_soc_component_driver soc_codec_dev_rt711 = {
.probe = rt711_probe,
.set_bias_level = rt711_set_bias_level,
.controls = rt711_snd_controls,
.num_controls = ARRAY_SIZE(rt711_snd_controls),
.dapm_widgets = rt711_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(rt711_dapm_widgets),
.dapm_routes = rt711_audio_map,
.num_dapm_routes = ARRAY_SIZE(rt711_audio_map),
.set_jack = rt711_set_jack_detect,
.remove = rt711_remove,
};
static int rt711_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
int direction)
{
struct sdw_stream_data *stream;
if (!sdw_stream)
return 0;
stream = kzalloc(sizeof(*stream), GFP_KERNEL);
if (!stream)
return -ENOMEM;
stream->sdw_stream = sdw_stream;
/* Use tx_mask or rx_mask to configure stream tag and set dma_data */
if (direction == SNDRV_PCM_STREAM_PLAYBACK)
dai->playback_dma_data = stream;
else
dai->capture_dma_data = stream;
return 0;
}
static void rt711_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct sdw_stream_data *stream;
stream = snd_soc_dai_get_dma_data(dai, substream);
snd_soc_dai_set_dma_data(dai, substream, NULL);
kfree(stream);
}
static int rt711_pcm_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 rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
struct sdw_stream_config stream_config;
struct sdw_port_config port_config;
enum sdw_data_direction direction;
struct sdw_stream_data *stream;
int retval, port, num_channels;
unsigned int val = 0;
dev_dbg(dai->dev, "%s %s", __func__, dai->name);
stream = snd_soc_dai_get_dma_data(dai, substream);
if (!stream)
return -EINVAL;
if (!rt711->slave)
return -EINVAL;
/* SoundWire specific configuration */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
direction = SDW_DATA_DIR_RX;
port = 3;
} else {
direction = SDW_DATA_DIR_TX;
if (dai->id == RT711_AIF1)
port = 4;
else if (dai->id == RT711_AIF2)
port = 2;
else
return -EINVAL;
}
stream_config.frame_rate = params_rate(params);
stream_config.ch_count = params_channels(params);
stream_config.bps = snd_pcm_format_width(params_format(params));
stream_config.direction = direction;
num_channels = params_channels(params);
port_config.ch_mask = (1 << (num_channels)) - 1;
port_config.num = port;
retval = sdw_stream_add_slave(rt711->slave, &stream_config,
&port_config, 1, stream->sdw_stream);
if (retval) {
dev_err(dai->dev, "Unable to configure port\n");
return retval;
}
if (params_channels(params) <= 16) {
/* bit 3:0 Number of Channel */
val |= (params_channels(params) - 1);
} else {
dev_err(component->dev, "Unsupported channels %d\n",
params_channels(params));
return -EINVAL;
}
switch (params_width(params)) {
/* bit 6:4 Bits per Sample */
case 8:
break;
case 16:
val |= (0x1 << 4);
break;
case 20:
val |= (0x2 << 4);
break;
case 24:
val |= (0x3 << 4);
break;
case 32:
val |= (0x4 << 4);
break;
default:
return -EINVAL;
}
/* 48Khz */
regmap_write(rt711->regmap, RT711_DAC_FORMAT_H, val);
regmap_write(rt711->regmap, RT711_ADC1_FORMAT_H, val);
regmap_write(rt711->regmap, RT711_ADC2_FORMAT_H, val);
return retval;
}
static int rt711_pcm_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
struct sdw_stream_data *stream =
snd_soc_dai_get_dma_data(dai, substream);
if (!rt711->slave)
return -EINVAL;
sdw_stream_remove_slave(rt711->slave, stream->sdw_stream);
return 0;
}
#define RT711_STEREO_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
#define RT711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)
static const struct snd_soc_dai_ops rt711_ops = {
.hw_params = rt711_pcm_hw_params,
.hw_free = rt711_pcm_hw_free,
.set_sdw_stream = rt711_set_sdw_stream,
.shutdown = rt711_shutdown,
};
static struct snd_soc_dai_driver rt711_dai[] = {
{
.name = "rt711-aif1",
.id = RT711_AIF1,
.playback = {
.stream_name = "DP3 Playback",
.channels_min = 1,
.channels_max = 2,
.rates = RT711_STEREO_RATES,
.formats = RT711_FORMATS,
},
.capture = {
.stream_name = "DP4 Capture",
.channels_min = 1,
.channels_max = 2,
.rates = RT711_STEREO_RATES,
.formats = RT711_FORMATS,
},
.ops = &rt711_ops,
},
{
.name = "rt711-aif2",
.id = RT711_AIF2,
.capture = {
.stream_name = "DP2 Capture",
.channels_min = 1,
.channels_max = 2,
.rates = RT711_STEREO_RATES,
.formats = RT711_FORMATS,
},
.ops = &rt711_ops,
}
};
/* Bus clock frequency */
#define RT711_CLK_FREQ_9600000HZ 9600000
#define RT711_CLK_FREQ_12000000HZ 12000000
#define RT711_CLK_FREQ_6000000HZ 6000000
#define RT711_CLK_FREQ_4800000HZ 4800000
#define RT711_CLK_FREQ_2400000HZ 2400000
#define RT711_CLK_FREQ_12288000HZ 12288000
int rt711_clock_config(struct device *dev)
{
struct rt711_priv *rt711 = dev_get_drvdata(dev);
unsigned int clk_freq, value;
clk_freq = (rt711->params.curr_dr_freq >> 1);
switch (clk_freq) {
case RT711_CLK_FREQ_12000000HZ:
value = 0x0;
break;
case RT711_CLK_FREQ_6000000HZ:
value = 0x1;
break;
case RT711_CLK_FREQ_9600000HZ:
value = 0x2;
break;
case RT711_CLK_FREQ_4800000HZ:
value = 0x3;
break;
case RT711_CLK_FREQ_2400000HZ:
value = 0x4;
break;
case RT711_CLK_FREQ_12288000HZ:
value = 0x5;
break;
default:
return -EINVAL;
}
regmap_write(rt711->regmap, 0xe0, value);
regmap_write(rt711->regmap, 0xf0, value);
dev_dbg(dev, "%s complete, clk_freq=%d\n", __func__, clk_freq);
return 0;
}
static void rt711_calibration_work(struct work_struct *work)
{
struct rt711_priv *rt711 =
container_of(work, struct rt711_priv, calibration_work);
rt711_calibration(rt711);
}
int rt711_init(struct device *dev, struct regmap *sdw_regmap,
struct regmap *regmap, struct sdw_slave *slave)
{
struct rt711_priv *rt711;
int ret;
rt711 = devm_kzalloc(dev, sizeof(*rt711), GFP_KERNEL);
if (!rt711)
return -ENOMEM;
dev_set_drvdata(dev, rt711);
rt711->slave = slave;
rt711->sdw_regmap = sdw_regmap;
rt711->regmap = regmap;
mutex_init(&rt711->disable_irq_lock);
/*
* Mark hw_init to false
* HW init will be performed when device reports present
*/
rt711->hw_init = false;
rt711->first_hw_init = false;
/* JD source uses JD2 in default */
rt711->jd_src = RT711_JD2;
ret = devm_snd_soc_register_component(dev,
&soc_codec_dev_rt711,
rt711_dai,
ARRAY_SIZE(rt711_dai));
dev_dbg(&slave->dev, "%s\n", __func__);
return ret;
}
int rt711_io_init(struct device *dev, struct sdw_slave *slave)
{
struct rt711_priv *rt711 = dev_get_drvdata(dev);
rt711->disable_irq = false;
if (rt711->hw_init)
return 0;
if (rt711->first_hw_init) {
regcache_cache_only(rt711->regmap, false);
regcache_cache_bypass(rt711->regmap, true);
}
/*
* PM runtime is only enabled when a Slave reports as Attached
*/
if (!rt711->first_hw_init) {
/* set autosuspend parameters */
pm_runtime_set_autosuspend_delay(&slave->dev, 3000);
pm_runtime_use_autosuspend(&slave->dev);
/* update count of parent 'active' children */
pm_runtime_set_active(&slave->dev);
/* make sure the device does not suspend immediately */
pm_runtime_mark_last_busy(&slave->dev);
pm_runtime_enable(&slave->dev);
}
pm_runtime_get_noresume(&slave->dev);
rt711_reset(rt711->regmap);
/* power on */
regmap_write(rt711->regmap, RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
/* Set Pin Widget */
regmap_write(rt711->regmap, RT711_SET_PIN_MIC2, 0x25);
regmap_write(rt711->regmap, RT711_SET_PIN_HP, 0xc0);
regmap_write(rt711->regmap, RT711_SET_PIN_DMIC1, 0x20);
regmap_write(rt711->regmap, RT711_SET_PIN_DMIC2, 0x20);
regmap_write(rt711->regmap, RT711_SET_PIN_LINE1, 0x20);
regmap_write(rt711->regmap, RT711_SET_PIN_LINE2, 0x20);
/* Mute HP/ADC1/ADC2 */
regmap_write(rt711->regmap, RT711_SET_GAIN_HP_H, 0xa080);
regmap_write(rt711->regmap, RT711_SET_GAIN_HP_H, 0x9080);
regmap_write(rt711->regmap, RT711_SET_GAIN_ADC2_H, 0x6080);
regmap_write(rt711->regmap, RT711_SET_GAIN_ADC2_H, 0x5080);
regmap_write(rt711->regmap, RT711_SET_GAIN_ADC1_H, 0x6080);
regmap_write(rt711->regmap, RT711_SET_GAIN_ADC1_H, 0x5080);
/* Set Configuration Default */
regmap_write(rt711->regmap, 0x4f12, 0x91);
regmap_write(rt711->regmap, 0x4e12, 0xd6);
regmap_write(rt711->regmap, 0x4d12, 0x11);
regmap_write(rt711->regmap, 0x4c12, 0x20);
regmap_write(rt711->regmap, 0x4f13, 0x91);
regmap_write(rt711->regmap, 0x4e13, 0xd6);
regmap_write(rt711->regmap, 0x4d13, 0x11);
regmap_write(rt711->regmap, 0x4c13, 0x21);
regmap_write(rt711->regmap, 0x4c21, 0xf0);
regmap_write(rt711->regmap, 0x4d21, 0x11);
regmap_write(rt711->regmap, 0x4e21, 0x11);
regmap_write(rt711->regmap, 0x4f21, 0x01);
/* Data port arrangement */
rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
RT711_TX_RX_MUX_CTL, 0x0154);
/* Set index */
rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
RT711_DIGITAL_MISC_CTRL4, 0x201b);
rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
RT711_COMBO_JACK_AUTO_CTL1, 0x5089);
rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
RT711_VREFOUT_CTL, 0x5064);
rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
RT711_INLINE_CMD_CTL, 0xd249);
/* Finish Initial Settings, set power to D3 */
regmap_write(rt711->regmap, RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
if (rt711->first_hw_init)
rt711_calibration(rt711);
else {
INIT_DELAYED_WORK(&rt711->jack_detect_work,
rt711_jack_detect_handler);
INIT_DELAYED_WORK(&rt711->jack_btn_check_work,
rt711_btn_check_handler);
mutex_init(&rt711->calibrate_mutex);
INIT_WORK(&rt711->calibration_work, rt711_calibration_work);
schedule_work(&rt711->calibration_work);
}
/*
* if set_jack callback occurred early than io_init,
* we set up the jack detection function now
*/
if (rt711->hs_jack)
rt711_jack_init(rt711);
if (rt711->first_hw_init) {
regcache_cache_bypass(rt711->regmap, false);
regcache_mark_dirty(rt711->regmap);
} else
rt711->first_hw_init = true;
/* Mark Slave initialization complete */
rt711->hw_init = true;
pm_runtime_mark_last_busy(&slave->dev);
pm_runtime_put_autosuspend(&slave->dev);
dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
return 0;
}
MODULE_DESCRIPTION("ASoC RT711 SDW driver");
MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
MODULE_LICENSE("GPL");
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