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ubuntu-linux-kernel/sound/soc/codecs/da7219-aad.c

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2024-04-01 15:06:58 +00:00
/*
* da7219-aad.c - Dialog DA7219 ALSA SoC AAD Driver
*
* Copyright (c) 2015 Dialog Semiconductor Ltd.
*
* Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/i2c.h>
#include <linux/property.h>
#include <linux/pm_wakeirq.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <sound/da7219.h>
#include "da7219.h"
#include "da7219-aad.h"
/*
* Detection control
*/
void da7219_aad_jack_det(struct snd_soc_codec *codec, struct snd_soc_jack *jack)
{
struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
da7219->aad->jack = jack;
da7219->aad->jack_inserted = false;
/* Send an initial empty report */
snd_soc_jack_report(jack, 0, DA7219_AAD_REPORT_ALL_MASK);
/* Enable/Disable jack detection */
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
DA7219_ACCDET_EN_MASK,
(jack ? DA7219_ACCDET_EN_MASK : 0));
}
EXPORT_SYMBOL_GPL(da7219_aad_jack_det);
/*
* Button/HPTest work
*/
static void da7219_aad_btn_det_work(struct work_struct *work)
{
struct da7219_aad_priv *da7219_aad =
container_of(work, struct da7219_aad_priv, btn_det_work);
struct snd_soc_codec *codec = da7219_aad->codec;
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
u8 statusa, micbias_ctrl;
bool micbias_up = false;
int retries = 0;
/* Drive headphones/lineout */
snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
DA7219_HP_L_AMP_OE_MASK,
DA7219_HP_L_AMP_OE_MASK);
snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
DA7219_HP_R_AMP_OE_MASK,
DA7219_HP_R_AMP_OE_MASK);
/* Make sure mic bias is up */
snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
snd_soc_dapm_sync(dapm);
do {
statusa = snd_soc_read(codec, DA7219_ACCDET_STATUS_A);
if (statusa & DA7219_MICBIAS_UP_STS_MASK)
micbias_up = true;
else if (retries++ < DA7219_AAD_MICBIAS_CHK_RETRIES)
msleep(DA7219_AAD_MICBIAS_CHK_DELAY);
} while ((!micbias_up) && (retries < DA7219_AAD_MICBIAS_CHK_RETRIES));
if (retries >= DA7219_AAD_MICBIAS_CHK_RETRIES)
dev_warn(codec->dev, "Mic bias status check timed out");
/*
* Mic bias pulse required to enable mic, must be done before enabling
* button detection to prevent erroneous button readings.
*/
if (da7219_aad->micbias_pulse_lvl && da7219_aad->micbias_pulse_time) {
/* Pulse higher level voltage */
micbias_ctrl = snd_soc_read(codec, DA7219_MICBIAS_CTRL);
snd_soc_update_bits(codec, DA7219_MICBIAS_CTRL,
DA7219_MICBIAS1_LEVEL_MASK,
da7219_aad->micbias_pulse_lvl);
msleep(da7219_aad->micbias_pulse_time);
snd_soc_write(codec, DA7219_MICBIAS_CTRL, micbias_ctrl);
}
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
DA7219_BUTTON_CONFIG_MASK,
da7219_aad->btn_cfg);
}
static void da7219_aad_hptest_work(struct work_struct *work)
{
struct da7219_aad_priv *da7219_aad =
container_of(work, struct da7219_aad_priv, hptest_work);
struct snd_soc_codec *codec = da7219_aad->codec;
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
u16 tonegen_freq_hptest;
u8 pll_srm_sts, pll_ctrl, gain_ramp_ctrl, accdet_cfg8;
int report = 0, ret = 0;
/* Lock DAPM, Kcontrols affected by this test and the PLL */
snd_soc_dapm_mutex_lock(dapm);
mutex_lock(&da7219->ctrl_lock);
mutex_lock(&da7219->pll_lock);
/* Ensure MCLK is available for HP test procedure */
if (da7219->mclk) {
ret = clk_prepare_enable(da7219->mclk);
if (ret) {
dev_err(codec->dev, "Failed to enable mclk - %d\n", ret);
mutex_unlock(&da7219->pll_lock);
mutex_unlock(&da7219->ctrl_lock);
snd_soc_dapm_mutex_unlock(dapm);
return;
}
}
/*
* If MCLK not present, then we're using the internal oscillator and
* require different frequency settings to achieve the same result.
*
* If MCLK is present, but PLL is not enabled then we enable it here to
* ensure a consistent detection procedure.
*/
pll_srm_sts = snd_soc_read(codec, DA7219_PLL_SRM_STS);
if (pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) {
tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ);
pll_ctrl = snd_soc_read(codec, DA7219_PLL_CTRL);
if ((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS)
da7219_set_pll(codec, DA7219_SYSCLK_PLL,
DA7219_PLL_FREQ_OUT_98304);
} else {
tonegen_freq_hptest = cpu_to_le16(DA7219_AAD_HPTEST_RAMP_FREQ_INT_OSC);
}
/* Ensure gain ramping at fastest rate */
gain_ramp_ctrl = snd_soc_read(codec, DA7219_GAIN_RAMP_CTRL);
snd_soc_write(codec, DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_X8);
/* Bypass cache so it saves current settings */
regcache_cache_bypass(da7219->regmap, true);
/* Make sure Tone Generator is disabled */
snd_soc_write(codec, DA7219_TONE_GEN_CFG1, 0);
/* Enable HPTest block, 1KOhms check */
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_8,
DA7219_HPTEST_EN_MASK | DA7219_HPTEST_RES_SEL_MASK,
DA7219_HPTEST_EN_MASK |
DA7219_HPTEST_RES_SEL_1KOHMS);
/* Set gains to 0db */
snd_soc_write(codec, DA7219_DAC_L_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
snd_soc_write(codec, DA7219_DAC_R_GAIN, DA7219_DAC_DIGITAL_GAIN_0DB);
snd_soc_write(codec, DA7219_HP_L_GAIN, DA7219_HP_AMP_GAIN_0DB);
snd_soc_write(codec, DA7219_HP_R_GAIN, DA7219_HP_AMP_GAIN_0DB);
/* Disable DAC filters, EQs and soft mute */
snd_soc_update_bits(codec, DA7219_DAC_FILTERS1, DA7219_HPF_MODE_MASK,
0);
snd_soc_update_bits(codec, DA7219_DAC_FILTERS4, DA7219_DAC_EQ_EN_MASK,
0);
snd_soc_update_bits(codec, DA7219_DAC_FILTERS5,
DA7219_DAC_SOFTMUTE_EN_MASK, 0);
/* Enable HP left & right paths */
snd_soc_update_bits(codec, DA7219_CP_CTRL, DA7219_CP_EN_MASK,
DA7219_CP_EN_MASK);
snd_soc_update_bits(codec, DA7219_DIG_ROUTING_DAC,
DA7219_DAC_L_SRC_MASK | DA7219_DAC_R_SRC_MASK,
DA7219_DAC_L_SRC_TONEGEN |
DA7219_DAC_R_SRC_TONEGEN);
snd_soc_update_bits(codec, DA7219_DAC_L_CTRL,
DA7219_DAC_L_EN_MASK | DA7219_DAC_L_MUTE_EN_MASK,
DA7219_DAC_L_EN_MASK);
snd_soc_update_bits(codec, DA7219_DAC_R_CTRL,
DA7219_DAC_R_EN_MASK | DA7219_DAC_R_MUTE_EN_MASK,
DA7219_DAC_R_EN_MASK);
snd_soc_update_bits(codec, DA7219_MIXOUT_L_SELECT,
DA7219_MIXOUT_L_MIX_SELECT_MASK,
DA7219_MIXOUT_L_MIX_SELECT_MASK);
snd_soc_update_bits(codec, DA7219_MIXOUT_R_SELECT,
DA7219_MIXOUT_R_MIX_SELECT_MASK,
DA7219_MIXOUT_R_MIX_SELECT_MASK);
snd_soc_update_bits(codec, DA7219_DROUTING_ST_OUTFILT_1L,
DA7219_OUTFILT_ST_1L_SRC_MASK,
DA7219_DMIX_ST_SRC_OUTFILT1L);
snd_soc_update_bits(codec, DA7219_DROUTING_ST_OUTFILT_1R,
DA7219_OUTFILT_ST_1R_SRC_MASK,
DA7219_DMIX_ST_SRC_OUTFILT1R);
snd_soc_update_bits(codec, DA7219_MIXOUT_L_CTRL,
DA7219_MIXOUT_L_AMP_EN_MASK,
DA7219_MIXOUT_L_AMP_EN_MASK);
snd_soc_update_bits(codec, DA7219_MIXOUT_R_CTRL,
DA7219_MIXOUT_R_AMP_EN_MASK,
DA7219_MIXOUT_R_AMP_EN_MASK);
snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK,
DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK);
snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK,
DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK);
msleep(DA7219_SETTLING_DELAY);
snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
DA7219_HP_L_AMP_MUTE_EN_MASK |
DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0);
snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
DA7219_HP_R_AMP_MUTE_EN_MASK |
DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0);
/*
* If we're running from the internal oscillator then give audio paths
* time to settle before running test.
*/
if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
/* Configure & start Tone Generator */
snd_soc_write(codec, DA7219_TONE_GEN_ON_PER, DA7219_BEEP_ON_PER_MASK);
regmap_raw_write(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
&tonegen_freq_hptest, sizeof(tonegen_freq_hptest));
snd_soc_update_bits(codec, DA7219_TONE_GEN_CFG2,
DA7219_SWG_SEL_MASK | DA7219_TONE_GEN_GAIN_MASK,
DA7219_SWG_SEL_SRAMP |
DA7219_TONE_GEN_GAIN_MINUS_15DB);
snd_soc_write(codec, DA7219_TONE_GEN_CFG1, DA7219_START_STOPN_MASK);
msleep(DA7219_AAD_HPTEST_PERIOD);
/* Grab comparator reading */
accdet_cfg8 = snd_soc_read(codec, DA7219_ACCDET_CONFIG_8);
if (accdet_cfg8 & DA7219_HPTEST_COMP_MASK)
report |= SND_JACK_HEADPHONE;
else
report |= SND_JACK_LINEOUT;
/* Stop tone generator */
snd_soc_write(codec, DA7219_TONE_GEN_CFG1, 0);
msleep(DA7219_AAD_HPTEST_PERIOD);
/* Restore original settings from cache */
regcache_mark_dirty(da7219->regmap);
regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL,
DA7219_HP_R_CTRL);
msleep(DA7219_SETTLING_DELAY);
regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL,
DA7219_MIXOUT_R_CTRL);
regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L,
DA7219_DROUTING_ST_OUTFILT_1R);
regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_SELECT,
DA7219_MIXOUT_R_SELECT);
regcache_sync_region(da7219->regmap, DA7219_DAC_L_CTRL,
DA7219_DAC_R_CTRL);
regcache_sync_region(da7219->regmap, DA7219_DIG_ROUTING_DAC,
DA7219_DIG_ROUTING_DAC);
regcache_sync_region(da7219->regmap, DA7219_CP_CTRL, DA7219_CP_CTRL);
regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS5,
DA7219_DAC_FILTERS5);
regcache_sync_region(da7219->regmap, DA7219_DAC_FILTERS4,
DA7219_DAC_FILTERS1);
regcache_sync_region(da7219->regmap, DA7219_HP_L_GAIN,
DA7219_HP_R_GAIN);
regcache_sync_region(da7219->regmap, DA7219_DAC_L_GAIN,
DA7219_DAC_R_GAIN);
regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_ON_PER,
DA7219_TONE_GEN_ON_PER);
regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_FREQ1_L,
DA7219_TONE_GEN_FREQ1_U);
regcache_sync_region(da7219->regmap, DA7219_TONE_GEN_CFG1,
DA7219_TONE_GEN_CFG2);
regcache_cache_bypass(da7219->regmap, false);
/* Disable HPTest block */
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_8,
DA7219_HPTEST_EN_MASK, 0);
/*
* If we're running from the internal oscillator then give audio paths
* time to settle before allowing headphones to be driven as required.
*/
if (!(pll_srm_sts & DA7219_PLL_SRM_STS_MCLK))
msleep(DA7219_AAD_HPTEST_INT_OSC_PATH_DELAY);
/* Restore gain ramping rate */
snd_soc_write(codec, DA7219_GAIN_RAMP_CTRL, gain_ramp_ctrl);
/* Drive Headphones/lineout */
snd_soc_update_bits(codec, DA7219_HP_L_CTRL, DA7219_HP_L_AMP_OE_MASK,
DA7219_HP_L_AMP_OE_MASK);
snd_soc_update_bits(codec, DA7219_HP_R_CTRL, DA7219_HP_R_AMP_OE_MASK,
DA7219_HP_R_AMP_OE_MASK);
/* Restore PLL to previous configuration, if re-configured */
if ((pll_srm_sts & DA7219_PLL_SRM_STS_MCLK) &&
((pll_ctrl & DA7219_PLL_MODE_MASK) == DA7219_PLL_MODE_BYPASS))
da7219_set_pll(codec, DA7219_SYSCLK_MCLK, 0);
/* Remove MCLK, if previously enabled */
if (da7219->mclk)
clk_disable_unprepare(da7219->mclk);
mutex_unlock(&da7219->pll_lock);
mutex_unlock(&da7219->ctrl_lock);
snd_soc_dapm_mutex_unlock(dapm);
/*
* Only send report if jack hasn't been removed during process,
* otherwise it's invalid and we drop it.
*/
if (da7219_aad->jack_inserted)
snd_soc_jack_report(da7219_aad->jack, report,
SND_JACK_HEADSET | SND_JACK_LINEOUT);
}
/*
* IRQ
*/
static irqreturn_t da7219_aad_irq_thread(int irq, void *data)
{
struct da7219_aad_priv *da7219_aad = data;
struct snd_soc_codec *codec = da7219_aad->codec;
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
u8 events[DA7219_AAD_IRQ_REG_MAX];
u8 statusa;
int i, report = 0, mask = 0;
/* Read current IRQ events */
regmap_bulk_read(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
events, DA7219_AAD_IRQ_REG_MAX);
if (!events[DA7219_AAD_IRQ_REG_A] && !events[DA7219_AAD_IRQ_REG_B])
return IRQ_NONE;
/* Read status register for jack insertion & type status */
statusa = snd_soc_read(codec, DA7219_ACCDET_STATUS_A);
/* Clear events */
regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_EVENT_A,
events, DA7219_AAD_IRQ_REG_MAX);
dev_dbg(codec->dev, "IRQ events = 0x%x|0x%x, status = 0x%x\n",
events[DA7219_AAD_IRQ_REG_A], events[DA7219_AAD_IRQ_REG_B],
statusa);
if (statusa & DA7219_JACK_INSERTION_STS_MASK) {
/* Jack Insertion */
if (events[DA7219_AAD_IRQ_REG_A] &
DA7219_E_JACK_INSERTED_MASK) {
report |= SND_JACK_MECHANICAL;
mask |= SND_JACK_MECHANICAL;
da7219_aad->jack_inserted = true;
}
/* Jack type detection */
if (events[DA7219_AAD_IRQ_REG_A] &
DA7219_E_JACK_DETECT_COMPLETE_MASK) {
/*
* If 4-pole, then enable button detection, else perform
* HP impedance test to determine output type to report.
*
* We schedule work here as the tasks themselves can
* take time to complete, and in particular for hptest
* we want to be able to check if the jack was removed
* during the procedure as this will invalidate the
* result. By doing this as work, the IRQ thread can
* handle a removal, and we can check at the end of
* hptest if we have a valid result or not.
*/
if (statusa & DA7219_JACK_TYPE_STS_MASK) {
report |= SND_JACK_HEADSET;
mask |= SND_JACK_HEADSET | SND_JACK_LINEOUT;
schedule_work(&da7219_aad->btn_det_work);
} else {
schedule_work(&da7219_aad->hptest_work);
}
}
/* Button support for 4-pole jack */
if (statusa & DA7219_JACK_TYPE_STS_MASK) {
for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
/* Button Press */
if (events[DA7219_AAD_IRQ_REG_B] &
(DA7219_E_BUTTON_A_PRESSED_MASK << i)) {
report |= SND_JACK_BTN_0 >> i;
mask |= SND_JACK_BTN_0 >> i;
}
}
snd_soc_jack_report(da7219_aad->jack, report, mask);
for (i = 0; i < DA7219_AAD_MAX_BUTTONS; ++i) {
/* Button Release */
if (events[DA7219_AAD_IRQ_REG_B] &
(DA7219_E_BUTTON_A_RELEASED_MASK >> i)) {
report &= ~(SND_JACK_BTN_0 >> i);
mask |= SND_JACK_BTN_0 >> i;
}
}
}
} else {
/* Jack removal */
if (events[DA7219_AAD_IRQ_REG_A] & DA7219_E_JACK_REMOVED_MASK) {
report = 0;
mask |= DA7219_AAD_REPORT_ALL_MASK;
da7219_aad->jack_inserted = false;
/* Un-drive headphones/lineout */
snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
DA7219_HP_R_AMP_OE_MASK, 0);
snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
DA7219_HP_L_AMP_OE_MASK, 0);
/* Ensure button detection disabled */
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
DA7219_BUTTON_CONFIG_MASK, 0);
/* Disable mic bias */
snd_soc_dapm_disable_pin(dapm, "Mic Bias");
snd_soc_dapm_sync(dapm);
/* Cancel any pending work */
cancel_work_sync(&da7219_aad->btn_det_work);
cancel_work_sync(&da7219_aad->hptest_work);
}
}
snd_soc_jack_report(da7219_aad->jack, report, mask);
return IRQ_HANDLED;
}
/*
* DT/ACPI to pdata conversion
*/
static enum da7219_aad_micbias_pulse_lvl
da7219_aad_fw_micbias_pulse_lvl(struct snd_soc_codec *codec, u32 val)
{
switch (val) {
case 2800:
return DA7219_AAD_MICBIAS_PULSE_LVL_2_8V;
case 2900:
return DA7219_AAD_MICBIAS_PULSE_LVL_2_9V;
default:
dev_warn(codec->dev, "Invalid micbias pulse level");
return DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
}
}
static enum da7219_aad_btn_cfg
da7219_aad_fw_btn_cfg(struct snd_soc_codec *codec, u32 val)
{
switch (val) {
case 2:
return DA7219_AAD_BTN_CFG_2MS;
case 5:
return DA7219_AAD_BTN_CFG_5MS;
case 10:
return DA7219_AAD_BTN_CFG_10MS;
case 50:
return DA7219_AAD_BTN_CFG_50MS;
case 100:
return DA7219_AAD_BTN_CFG_100MS;
case 200:
return DA7219_AAD_BTN_CFG_200MS;
case 500:
return DA7219_AAD_BTN_CFG_500MS;
default:
dev_warn(codec->dev, "Invalid button config");
return DA7219_AAD_BTN_CFG_10MS;
}
}
static enum da7219_aad_mic_det_thr
da7219_aad_fw_mic_det_thr(struct snd_soc_codec *codec, u32 val)
{
switch (val) {
case 200:
return DA7219_AAD_MIC_DET_THR_200_OHMS;
case 500:
return DA7219_AAD_MIC_DET_THR_500_OHMS;
case 750:
return DA7219_AAD_MIC_DET_THR_750_OHMS;
case 1000:
return DA7219_AAD_MIC_DET_THR_1000_OHMS;
default:
dev_warn(codec->dev, "Invalid mic detect threshold");
return DA7219_AAD_MIC_DET_THR_500_OHMS;
}
}
static enum da7219_aad_jack_ins_deb
da7219_aad_fw_jack_ins_deb(struct snd_soc_codec *codec, u32 val)
{
switch (val) {
case 5:
return DA7219_AAD_JACK_INS_DEB_5MS;
case 10:
return DA7219_AAD_JACK_INS_DEB_10MS;
case 20:
return DA7219_AAD_JACK_INS_DEB_20MS;
case 50:
return DA7219_AAD_JACK_INS_DEB_50MS;
case 100:
return DA7219_AAD_JACK_INS_DEB_100MS;
case 200:
return DA7219_AAD_JACK_INS_DEB_200MS;
case 500:
return DA7219_AAD_JACK_INS_DEB_500MS;
case 1000:
return DA7219_AAD_JACK_INS_DEB_1S;
default:
dev_warn(codec->dev, "Invalid jack insert debounce");
return DA7219_AAD_JACK_INS_DEB_20MS;
}
}
static enum da7219_aad_jack_det_rate
da7219_aad_fw_jack_det_rate(struct snd_soc_codec *codec, const char *str)
{
if (!strcmp(str, "32ms_64ms")) {
return DA7219_AAD_JACK_DET_RATE_32_64MS;
} else if (!strcmp(str, "64ms_128ms")) {
return DA7219_AAD_JACK_DET_RATE_64_128MS;
} else if (!strcmp(str, "128ms_256ms")) {
return DA7219_AAD_JACK_DET_RATE_128_256MS;
} else if (!strcmp(str, "256ms_512ms")) {
return DA7219_AAD_JACK_DET_RATE_256_512MS;
} else {
dev_warn(codec->dev, "Invalid jack detect rate");
return DA7219_AAD_JACK_DET_RATE_256_512MS;
}
}
static enum da7219_aad_jack_rem_deb
da7219_aad_fw_jack_rem_deb(struct snd_soc_codec *codec, u32 val)
{
switch (val) {
case 1:
return DA7219_AAD_JACK_REM_DEB_1MS;
case 5:
return DA7219_AAD_JACK_REM_DEB_5MS;
case 10:
return DA7219_AAD_JACK_REM_DEB_10MS;
case 20:
return DA7219_AAD_JACK_REM_DEB_20MS;
default:
dev_warn(codec->dev, "Invalid jack removal debounce");
return DA7219_AAD_JACK_REM_DEB_1MS;
}
}
static enum da7219_aad_btn_avg
da7219_aad_fw_btn_avg(struct snd_soc_codec *codec, u32 val)
{
switch (val) {
case 1:
return DA7219_AAD_BTN_AVG_1;
case 2:
return DA7219_AAD_BTN_AVG_2;
case 4:
return DA7219_AAD_BTN_AVG_4;
case 8:
return DA7219_AAD_BTN_AVG_8;
default:
dev_warn(codec->dev, "Invalid button average value");
return DA7219_AAD_BTN_AVG_2;
}
}
static enum da7219_aad_adc_1bit_rpt
da7219_aad_fw_adc_1bit_rpt(struct snd_soc_codec *codec, u32 val)
{
switch (val) {
case 1:
return DA7219_AAD_ADC_1BIT_RPT_1;
case 2:
return DA7219_AAD_ADC_1BIT_RPT_2;
case 4:
return DA7219_AAD_ADC_1BIT_RPT_4;
case 8:
return DA7219_AAD_ADC_1BIT_RPT_8;
default:
dev_warn(codec->dev, "Invalid ADC 1-bit repeat value");
return DA7219_AAD_ADC_1BIT_RPT_1;
}
}
static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct snd_soc_codec *codec)
{
struct device *dev = codec->dev;
struct i2c_client *i2c = to_i2c_client(dev);
struct fwnode_handle *aad_np;
struct da7219_aad_pdata *aad_pdata;
const char *fw_str;
u32 fw_val32;
aad_np = device_get_named_child_node(dev, "da7219_aad");
if (!aad_np)
return NULL;
aad_pdata = devm_kzalloc(codec->dev, sizeof(*aad_pdata), GFP_KERNEL);
if (!aad_pdata)
return NULL;
aad_pdata->irq = i2c->irq;
if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-lvl",
&fw_val32) >= 0)
aad_pdata->micbias_pulse_lvl =
da7219_aad_fw_micbias_pulse_lvl(codec, fw_val32);
else
aad_pdata->micbias_pulse_lvl = DA7219_AAD_MICBIAS_PULSE_LVL_OFF;
if (fwnode_property_read_u32(aad_np, "dlg,micbias-pulse-time",
&fw_val32) >= 0)
aad_pdata->micbias_pulse_time = fw_val32;
if (fwnode_property_read_u32(aad_np, "dlg,btn-cfg", &fw_val32) >= 0)
aad_pdata->btn_cfg = da7219_aad_fw_btn_cfg(codec, fw_val32);
else
aad_pdata->btn_cfg = DA7219_AAD_BTN_CFG_10MS;
if (fwnode_property_read_u32(aad_np, "dlg,mic-det-thr", &fw_val32) >= 0)
aad_pdata->mic_det_thr =
da7219_aad_fw_mic_det_thr(codec, fw_val32);
else
aad_pdata->mic_det_thr = DA7219_AAD_MIC_DET_THR_500_OHMS;
if (fwnode_property_read_u32(aad_np, "dlg,jack-ins-deb", &fw_val32) >= 0)
aad_pdata->jack_ins_deb =
da7219_aad_fw_jack_ins_deb(codec, fw_val32);
else
aad_pdata->jack_ins_deb = DA7219_AAD_JACK_INS_DEB_20MS;
if (!fwnode_property_read_string(aad_np, "dlg,jack-det-rate", &fw_str))
aad_pdata->jack_det_rate =
da7219_aad_fw_jack_det_rate(codec, fw_str);
else
aad_pdata->jack_det_rate = DA7219_AAD_JACK_DET_RATE_256_512MS;
if (fwnode_property_read_u32(aad_np, "dlg,jack-rem-deb", &fw_val32) >= 0)
aad_pdata->jack_rem_deb =
da7219_aad_fw_jack_rem_deb(codec, fw_val32);
else
aad_pdata->jack_rem_deb = DA7219_AAD_JACK_REM_DEB_1MS;
if (fwnode_property_read_u32(aad_np, "dlg,a-d-btn-thr", &fw_val32) >= 0)
aad_pdata->a_d_btn_thr = (u8) fw_val32;
else
aad_pdata->a_d_btn_thr = 0xA;
if (fwnode_property_read_u32(aad_np, "dlg,d-b-btn-thr", &fw_val32) >= 0)
aad_pdata->d_b_btn_thr = (u8) fw_val32;
else
aad_pdata->d_b_btn_thr = 0x16;
if (fwnode_property_read_u32(aad_np, "dlg,b-c-btn-thr", &fw_val32) >= 0)
aad_pdata->b_c_btn_thr = (u8) fw_val32;
else
aad_pdata->b_c_btn_thr = 0x21;
if (fwnode_property_read_u32(aad_np, "dlg,c-mic-btn-thr", &fw_val32) >= 0)
aad_pdata->c_mic_btn_thr = (u8) fw_val32;
else
aad_pdata->c_mic_btn_thr = 0x3E;
if (fwnode_property_read_u32(aad_np, "dlg,btn-avg", &fw_val32) >= 0)
aad_pdata->btn_avg = da7219_aad_fw_btn_avg(codec, fw_val32);
else
aad_pdata->btn_avg = DA7219_AAD_BTN_AVG_2;
if (fwnode_property_read_u32(aad_np, "dlg,adc-1bit-rpt", &fw_val32) >= 0)
aad_pdata->adc_1bit_rpt =
da7219_aad_fw_adc_1bit_rpt(codec, fw_val32);
else
aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
return aad_pdata;
}
static void da7219_aad_handle_pdata(struct snd_soc_codec *codec)
{
struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
struct da7219_aad_priv *da7219_aad = da7219->aad;
struct da7219_pdata *pdata = da7219->pdata;
if ((pdata) && (pdata->aad_pdata)) {
struct da7219_aad_pdata *aad_pdata = pdata->aad_pdata;
u8 cfg, mask;
da7219_aad->irq = aad_pdata->irq;
switch (aad_pdata->micbias_pulse_lvl) {
case DA7219_AAD_MICBIAS_PULSE_LVL_2_8V:
case DA7219_AAD_MICBIAS_PULSE_LVL_2_9V:
da7219_aad->micbias_pulse_lvl =
(aad_pdata->micbias_pulse_lvl <<
DA7219_MICBIAS1_LEVEL_SHIFT);
break;
default:
break;
}
da7219_aad->micbias_pulse_time = aad_pdata->micbias_pulse_time;
switch (aad_pdata->btn_cfg) {
case DA7219_AAD_BTN_CFG_2MS:
case DA7219_AAD_BTN_CFG_5MS:
case DA7219_AAD_BTN_CFG_10MS:
case DA7219_AAD_BTN_CFG_50MS:
case DA7219_AAD_BTN_CFG_100MS:
case DA7219_AAD_BTN_CFG_200MS:
case DA7219_AAD_BTN_CFG_500MS:
da7219_aad->btn_cfg = (aad_pdata->btn_cfg <<
DA7219_BUTTON_CONFIG_SHIFT);
}
cfg = 0;
mask = 0;
switch (aad_pdata->mic_det_thr) {
case DA7219_AAD_MIC_DET_THR_200_OHMS:
case DA7219_AAD_MIC_DET_THR_500_OHMS:
case DA7219_AAD_MIC_DET_THR_750_OHMS:
case DA7219_AAD_MIC_DET_THR_1000_OHMS:
cfg |= (aad_pdata->mic_det_thr <<
DA7219_MIC_DET_THRESH_SHIFT);
mask |= DA7219_MIC_DET_THRESH_MASK;
}
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1, mask, cfg);
cfg = 0;
mask = 0;
switch (aad_pdata->jack_ins_deb) {
case DA7219_AAD_JACK_INS_DEB_5MS:
case DA7219_AAD_JACK_INS_DEB_10MS:
case DA7219_AAD_JACK_INS_DEB_20MS:
case DA7219_AAD_JACK_INS_DEB_50MS:
case DA7219_AAD_JACK_INS_DEB_100MS:
case DA7219_AAD_JACK_INS_DEB_200MS:
case DA7219_AAD_JACK_INS_DEB_500MS:
case DA7219_AAD_JACK_INS_DEB_1S:
cfg |= (aad_pdata->jack_ins_deb <<
DA7219_JACKDET_DEBOUNCE_SHIFT);
mask |= DA7219_JACKDET_DEBOUNCE_MASK;
}
switch (aad_pdata->jack_det_rate) {
case DA7219_AAD_JACK_DET_RATE_32_64MS:
case DA7219_AAD_JACK_DET_RATE_64_128MS:
case DA7219_AAD_JACK_DET_RATE_128_256MS:
case DA7219_AAD_JACK_DET_RATE_256_512MS:
cfg |= (aad_pdata->jack_det_rate <<
DA7219_JACK_DETECT_RATE_SHIFT);
mask |= DA7219_JACK_DETECT_RATE_MASK;
}
switch (aad_pdata->jack_rem_deb) {
case DA7219_AAD_JACK_REM_DEB_1MS:
case DA7219_AAD_JACK_REM_DEB_5MS:
case DA7219_AAD_JACK_REM_DEB_10MS:
case DA7219_AAD_JACK_REM_DEB_20MS:
cfg |= (aad_pdata->jack_rem_deb <<
DA7219_JACKDET_REM_DEB_SHIFT);
mask |= DA7219_JACKDET_REM_DEB_MASK;
}
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_2, mask, cfg);
snd_soc_write(codec, DA7219_ACCDET_CONFIG_3,
aad_pdata->a_d_btn_thr);
snd_soc_write(codec, DA7219_ACCDET_CONFIG_4,
aad_pdata->d_b_btn_thr);
snd_soc_write(codec, DA7219_ACCDET_CONFIG_5,
aad_pdata->b_c_btn_thr);
snd_soc_write(codec, DA7219_ACCDET_CONFIG_6,
aad_pdata->c_mic_btn_thr);
cfg = 0;
mask = 0;
switch (aad_pdata->btn_avg) {
case DA7219_AAD_BTN_AVG_1:
case DA7219_AAD_BTN_AVG_2:
case DA7219_AAD_BTN_AVG_4:
case DA7219_AAD_BTN_AVG_8:
cfg |= (aad_pdata->btn_avg <<
DA7219_BUTTON_AVERAGE_SHIFT);
mask |= DA7219_BUTTON_AVERAGE_MASK;
}
switch (aad_pdata->adc_1bit_rpt) {
case DA7219_AAD_ADC_1BIT_RPT_1:
case DA7219_AAD_ADC_1BIT_RPT_2:
case DA7219_AAD_ADC_1BIT_RPT_4:
case DA7219_AAD_ADC_1BIT_RPT_8:
cfg |= (aad_pdata->adc_1bit_rpt <<
DA7219_ADC_1_BIT_REPEAT_SHIFT);
mask |= DA7219_ADC_1_BIT_REPEAT_MASK;
}
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_7, mask, cfg);
}
}
/*
* Suspend/Resume
*/
void da7219_aad_suspend(struct snd_soc_codec *codec)
{
struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
struct da7219_aad_priv *da7219_aad = da7219->aad;
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
u8 micbias_ctrl;
if (da7219_aad->jack) {
/* Disable jack detection during suspend */
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
DA7219_ACCDET_EN_MASK, 0);
/*
* If we have a 4-pole jack inserted, then micbias will be
* enabled. We can disable micbias here, and keep a note to
* re-enable it on resume. If jack removal occurred during
* suspend then this will be dealt with through the IRQ handler.
*/
if (da7219_aad->jack_inserted) {
micbias_ctrl = snd_soc_read(codec, DA7219_MICBIAS_CTRL);
if (micbias_ctrl & DA7219_MICBIAS1_EN_MASK) {
snd_soc_dapm_disable_pin(dapm, "Mic Bias");
snd_soc_dapm_sync(dapm);
da7219_aad->micbias_resume_enable = true;
}
}
}
}
void da7219_aad_resume(struct snd_soc_codec *codec)
{
struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
struct da7219_aad_priv *da7219_aad = da7219->aad;
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
if (da7219_aad->jack) {
/* Re-enable micbias if previously enabled for 4-pole jack */
if (da7219_aad->jack_inserted &&
da7219_aad->micbias_resume_enable) {
snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
snd_soc_dapm_sync(dapm);
da7219_aad->micbias_resume_enable = false;
}
/* Re-enable jack detection */
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
DA7219_ACCDET_EN_MASK,
DA7219_ACCDET_EN_MASK);
}
}
/*
* Init/Exit
*/
int da7219_aad_init(struct snd_soc_codec *codec)
{
struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
struct da7219_aad_priv *da7219_aad;
u8 mask[DA7219_AAD_IRQ_REG_MAX];
int ret;
da7219_aad = devm_kzalloc(codec->dev, sizeof(*da7219_aad), GFP_KERNEL);
if (!da7219_aad)
return -ENOMEM;
da7219->aad = da7219_aad;
da7219_aad->codec = codec;
/* Handle any DT/ACPI/platform data */
if (da7219->pdata && !da7219->pdata->aad_pdata)
da7219->pdata->aad_pdata = da7219_aad_fw_to_pdata(codec);
da7219_aad_handle_pdata(codec);
/* Disable button detection */
snd_soc_update_bits(codec, DA7219_ACCDET_CONFIG_1,
DA7219_BUTTON_CONFIG_MASK, 0);
INIT_WORK(&da7219_aad->btn_det_work, da7219_aad_btn_det_work);
INIT_WORK(&da7219_aad->hptest_work, da7219_aad_hptest_work);
ret = request_threaded_irq(da7219_aad->irq, NULL,
da7219_aad_irq_thread,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
"da7219-aad", da7219_aad);
if (ret) {
dev_err(codec->dev, "Failed to request IRQ: %d\n", ret);
return ret;
}
/* Unmask AAD IRQs */
memset(mask, 0, DA7219_AAD_IRQ_REG_MAX);
regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
&mask, DA7219_AAD_IRQ_REG_MAX);
return 0;
}
EXPORT_SYMBOL_GPL(da7219_aad_init);
void da7219_aad_exit(struct snd_soc_codec *codec)
{
struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
struct da7219_aad_priv *da7219_aad = da7219->aad;
u8 mask[DA7219_AAD_IRQ_REG_MAX];
/* Mask off AAD IRQs */
memset(mask, DA7219_BYTE_MASK, DA7219_AAD_IRQ_REG_MAX);
regmap_bulk_write(da7219->regmap, DA7219_ACCDET_IRQ_MASK_A,
mask, DA7219_AAD_IRQ_REG_MAX);
free_irq(da7219_aad->irq, da7219_aad);
cancel_work_sync(&da7219_aad->btn_det_work);
cancel_work_sync(&da7219_aad->hptest_work);
}
EXPORT_SYMBOL_GPL(da7219_aad_exit);
MODULE_DESCRIPTION("ASoC DA7219 AAD Driver");
MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
MODULE_LICENSE("GPL");