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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /sound/soc/codecs/cs42l43-jack.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/codecs/cs42l43-jack.c')
-rw-r--r--sound/soc/codecs/cs42l43-jack.c946
1 files changed, 946 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs42l43-jack.c b/sound/soc/codecs/cs42l43-jack.c
new file mode 100644
index 0000000000..9f5f1a9256
--- /dev/null
+++ b/sound/soc/codecs/cs42l43-jack.c
@@ -0,0 +1,946 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// CS42L43 CODEC driver jack handling
+//
+// Copyright (C) 2022-2023 Cirrus Logic, Inc. and
+// Cirrus Logic International Semiconductor Ltd.
+
+#include <linux/build_bug.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/irq.h>
+#include <linux/jiffies.h>
+#include <linux/mfd/cs42l43.h>
+#include <linux/mfd/cs42l43-regs.h>
+#include <linux/pm_runtime.h>
+#include <linux/property.h>
+#include <sound/control.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-component.h>
+#include <sound/soc.h>
+
+#include "cs42l43.h"
+
+static const unsigned int cs42l43_accdet_us[] = {
+ 20, 100, 1000, 10000, 50000, 75000, 100000, 200000
+};
+
+static const unsigned int cs42l43_accdet_db_ms[] = {
+ 0, 125, 250, 500, 750, 1000, 1250, 1500
+};
+
+static const unsigned int cs42l43_accdet_ramp_ms[] = { 10, 40, 90, 170 };
+
+static const unsigned int cs42l43_accdet_bias_sense[] = {
+ 14, 24, 43, 52, 61, 71, 90, 99, 0,
+};
+
+static int cs42l43_find_index(struct cs42l43_codec *priv, const char * const prop,
+ unsigned int defval, unsigned int *val,
+ const unsigned int *values, const int nvalues)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+ int i, ret;
+
+ ret = device_property_read_u32(cs42l43->dev, prop, &defval);
+ if (ret != -EINVAL && ret < 0) {
+ dev_err(priv->dev, "Property %s malformed: %d\n", prop, ret);
+ return ret;
+ }
+
+ if (val)
+ *val = defval;
+
+ for (i = 0; i < nvalues; i++)
+ if (defval == values[i])
+ return i;
+
+ dev_err(priv->dev, "Invalid value for property %s: %d\n", prop, defval);
+ return -EINVAL;
+}
+
+int cs42l43_set_jack(struct snd_soc_component *component,
+ struct snd_soc_jack *jack, void *d)
+{
+ struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component);
+ struct cs42l43 *cs42l43 = priv->core;
+ /* This tip sense invert is always set, HW wants an inverted signal */
+ unsigned int tip_deb = CS42L43_TIPSENSE_INV_MASK;
+ unsigned int hs2 = 0x2 << CS42L43_HSDET_MODE_SHIFT;
+ unsigned int autocontrol = 0, pdncntl = 0;
+ int ret;
+
+ dev_dbg(priv->dev, "Configure accessory detect\n");
+
+ ret = pm_runtime_resume_and_get(priv->dev);
+ if (ret) {
+ dev_err(priv->dev, "Failed to resume for jack config: %d\n", ret);
+ return ret;
+ }
+
+ mutex_lock(&priv->jack_lock);
+
+ priv->jack_hp = jack;
+
+ if (!jack)
+ goto done;
+
+ ret = device_property_count_u32(cs42l43->dev, "cirrus,buttons-ohms");
+ if (ret != -EINVAL) {
+ if (ret < 0) {
+ dev_err(priv->dev, "Property cirrus,buttons-ohms malformed: %d\n",
+ ret);
+ goto error;
+ }
+
+ if (ret > CS42L43_N_BUTTONS) {
+ ret = -EINVAL;
+ dev_err(priv->dev, "Property cirrus,buttons-ohms too many entries\n");
+ goto error;
+ }
+
+ device_property_read_u32_array(cs42l43->dev, "cirrus,buttons-ohms",
+ priv->buttons, ret);
+ } else {
+ priv->buttons[0] = 70;
+ priv->buttons[1] = 185;
+ priv->buttons[2] = 355;
+ priv->buttons[3] = 735;
+ }
+
+ ret = cs42l43_find_index(priv, "cirrus,detect-us", 10000, &priv->detect_us,
+ cs42l43_accdet_us, ARRAY_SIZE(cs42l43_accdet_us));
+ if (ret < 0)
+ goto error;
+
+ hs2 |= ret << CS42L43_AUTO_HSDET_TIME_SHIFT;
+
+ priv->bias_low = device_property_read_bool(cs42l43->dev, "cirrus,bias-low");
+
+ ret = cs42l43_find_index(priv, "cirrus,bias-ramp-ms", 170,
+ &priv->bias_ramp_ms, cs42l43_accdet_ramp_ms,
+ ARRAY_SIZE(cs42l43_accdet_ramp_ms));
+ if (ret < 0)
+ goto error;
+
+ hs2 |= ret << CS42L43_HSBIAS_RAMP_SHIFT;
+
+ ret = cs42l43_find_index(priv, "cirrus,bias-sense-microamp", 0,
+ &priv->bias_sense_ua, cs42l43_accdet_bias_sense,
+ ARRAY_SIZE(cs42l43_accdet_bias_sense));
+ if (ret < 0)
+ goto error;
+
+ if (priv->bias_sense_ua)
+ autocontrol |= ret << CS42L43_HSBIAS_SENSE_TRIP_SHIFT;
+
+ if (!device_property_read_bool(cs42l43->dev, "cirrus,button-automute"))
+ autocontrol |= CS42L43_S0_AUTO_ADCMUTE_DISABLE_MASK;
+
+ ret = device_property_read_u32(cs42l43->dev, "cirrus,tip-debounce-ms",
+ &priv->tip_debounce_ms);
+ if (ret < 0 && ret != -EINVAL) {
+ dev_err(priv->dev, "Property cirrus,tip-debounce-ms malformed: %d\n", ret);
+ goto error;
+ }
+
+ /* This tip sense invert is set normally, as TIPSENSE_INV already inverted */
+ if (device_property_read_bool(cs42l43->dev, "cirrus,tip-invert"))
+ autocontrol |= 0x1 << CS42L43_JACKDET_INV_SHIFT;
+
+ if (device_property_read_bool(cs42l43->dev, "cirrus,tip-disable-pullup"))
+ autocontrol |= 0x1 << CS42L43_JACKDET_MODE_SHIFT;
+ else
+ autocontrol |= 0x3 << CS42L43_JACKDET_MODE_SHIFT;
+
+ ret = cs42l43_find_index(priv, "cirrus,tip-fall-db-ms", 500,
+ NULL, cs42l43_accdet_db_ms,
+ ARRAY_SIZE(cs42l43_accdet_db_ms));
+ if (ret < 0)
+ goto error;
+
+ tip_deb |= ret << CS42L43_TIPSENSE_FALLING_DB_TIME_SHIFT;
+
+ ret = cs42l43_find_index(priv, "cirrus,tip-rise-db-ms", 500,
+ NULL, cs42l43_accdet_db_ms,
+ ARRAY_SIZE(cs42l43_accdet_db_ms));
+ if (ret < 0)
+ goto error;
+
+ tip_deb |= ret << CS42L43_TIPSENSE_RISING_DB_TIME_SHIFT;
+
+ if (device_property_read_bool(cs42l43->dev, "cirrus,use-ring-sense")) {
+ unsigned int ring_deb = 0;
+
+ priv->use_ring_sense = true;
+
+ /* HW wants an inverted signal, so invert the invert */
+ if (!device_property_read_bool(cs42l43->dev, "cirrus,ring-invert"))
+ ring_deb |= CS42L43_RINGSENSE_INV_MASK;
+
+ if (!device_property_read_bool(cs42l43->dev,
+ "cirrus,ring-disable-pullup"))
+ ring_deb |= CS42L43_RINGSENSE_PULLUP_PDNB_MASK;
+
+ ret = cs42l43_find_index(priv, "cirrus,ring-fall-db-ms", 500,
+ NULL, cs42l43_accdet_db_ms,
+ ARRAY_SIZE(cs42l43_accdet_db_ms));
+ if (ret < 0)
+ goto error;
+
+ ring_deb |= ret << CS42L43_RINGSENSE_FALLING_DB_TIME_SHIFT;
+
+ ret = cs42l43_find_index(priv, "cirrus,ring-rise-db-ms", 500,
+ NULL, cs42l43_accdet_db_ms,
+ ARRAY_SIZE(cs42l43_accdet_db_ms));
+ if (ret < 0)
+ goto error;
+
+ ring_deb |= ret << CS42L43_RINGSENSE_RISING_DB_TIME_SHIFT;
+ pdncntl |= CS42L43_RING_SENSE_EN_MASK;
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_RINGSENSE_DEB_CTRL,
+ CS42L43_RINGSENSE_INV_MASK |
+ CS42L43_RINGSENSE_PULLUP_PDNB_MASK |
+ CS42L43_RINGSENSE_FALLING_DB_TIME_MASK |
+ CS42L43_RINGSENSE_RISING_DB_TIME_MASK,
+ ring_deb);
+ }
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_TIPSENSE_DEB_CTRL,
+ CS42L43_TIPSENSE_INV_MASK |
+ CS42L43_TIPSENSE_FALLING_DB_TIME_MASK |
+ CS42L43_TIPSENSE_RISING_DB_TIME_MASK, tip_deb);
+ regmap_update_bits(cs42l43->regmap, CS42L43_HS2,
+ CS42L43_HSBIAS_RAMP_MASK | CS42L43_HSDET_MODE_MASK |
+ CS42L43_AUTO_HSDET_TIME_MASK, hs2);
+
+done:
+ ret = 0;
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL,
+ CS42L43_JACKDET_MODE_MASK | CS42L43_S0_AUTO_ADCMUTE_DISABLE_MASK |
+ CS42L43_HSBIAS_SENSE_TRIP_MASK, autocontrol);
+ regmap_update_bits(cs42l43->regmap, CS42L43_PDNCNTL,
+ CS42L43_RING_SENSE_EN_MASK, pdncntl);
+
+ dev_dbg(priv->dev, "Successfully configured accessory detect\n");
+
+error:
+ mutex_unlock(&priv->jack_lock);
+
+ pm_runtime_mark_last_busy(priv->dev);
+ pm_runtime_put_autosuspend(priv->dev);
+
+ return ret;
+}
+
+static void cs42l43_start_hs_bias(struct cs42l43_codec *priv, bool force_high)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+ unsigned int val = 0x3 << CS42L43_HSBIAS_MODE_SHIFT;
+
+ dev_dbg(priv->dev, "Start headset bias\n");
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_HS2,
+ CS42L43_HS_CLAMP_DISABLE_MASK, CS42L43_HS_CLAMP_DISABLE_MASK);
+
+ if (!force_high && priv->bias_low)
+ val = 0x2 << CS42L43_HSBIAS_MODE_SHIFT;
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1,
+ CS42L43_HSBIAS_MODE_MASK, val);
+
+ msleep(priv->bias_ramp_ms);
+}
+
+static void cs42l43_stop_hs_bias(struct cs42l43_codec *priv)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+
+ dev_dbg(priv->dev, "Stop headset bias\n");
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1,
+ CS42L43_HSBIAS_MODE_MASK, 0x1 << CS42L43_HSBIAS_MODE_SHIFT);
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_HS2,
+ CS42L43_HS_CLAMP_DISABLE_MASK, 0);
+}
+
+irqreturn_t cs42l43_bias_detect_clamp(int irq, void *data)
+{
+ struct cs42l43_codec *priv = data;
+
+ queue_delayed_work(system_wq, &priv->bias_sense_timeout,
+ msecs_to_jiffies(250));
+
+ return IRQ_HANDLED;
+}
+
+#define CS42L43_JACK_PRESENT 0x3
+#define CS42L43_JACK_ABSENT 0x0
+
+#define CS42L43_JACK_OPTICAL (SND_JACK_MECHANICAL | SND_JACK_AVOUT)
+#define CS42L43_JACK_HEADPHONE (SND_JACK_MECHANICAL | SND_JACK_HEADPHONE)
+#define CS42L43_JACK_HEADSET (SND_JACK_MECHANICAL | SND_JACK_HEADSET)
+#define CS42L43_JACK_LINEOUT (SND_JACK_MECHANICAL | SND_JACK_LINEOUT)
+#define CS42L43_JACK_LINEIN (SND_JACK_MECHANICAL | SND_JACK_LINEIN)
+#define CS42L43_JACK_EXTENSION (SND_JACK_MECHANICAL)
+#define CS42L43_JACK_BUTTONS (SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 | \
+ SND_JACK_BTN_3 | SND_JACK_BTN_4 | SND_JACK_BTN_5)
+
+static inline bool cs42l43_jack_present(struct cs42l43_codec *priv)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+ unsigned int sts = 0;
+
+ regmap_read(cs42l43->regmap, CS42L43_TIP_RING_SENSE_INTERRUPT_STATUS, &sts);
+
+ sts = (sts >> CS42L43_TIPSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT;
+
+ return sts == CS42L43_JACK_PRESENT;
+}
+
+static void cs42l43_start_button_detect(struct cs42l43_codec *priv)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+ unsigned int val = 0x3 << CS42L43_BUTTON_DETECT_MODE_SHIFT;
+
+ dev_dbg(priv->dev, "Start button detect\n");
+
+ priv->button_detect_running = true;
+
+ if (priv->bias_low)
+ val = 0x1 << CS42L43_BUTTON_DETECT_MODE_SHIFT;
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1,
+ CS42L43_BUTTON_DETECT_MODE_MASK |
+ CS42L43_MIC_LVL_DET_DISABLE_MASK, val);
+
+ if (priv->bias_sense_ua) {
+ regmap_update_bits(cs42l43->regmap,
+ CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL,
+ CS42L43_HSBIAS_SENSE_EN_MASK |
+ CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK,
+ CS42L43_HSBIAS_SENSE_EN_MASK |
+ CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK);
+ }
+}
+
+static void cs42l43_stop_button_detect(struct cs42l43_codec *priv)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+
+ dev_dbg(priv->dev, "Stop button detect\n");
+
+ if (priv->bias_sense_ua) {
+ regmap_update_bits(cs42l43->regmap,
+ CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL,
+ CS42L43_HSBIAS_SENSE_EN_MASK |
+ CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 0);
+ }
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1,
+ CS42L43_BUTTON_DETECT_MODE_MASK |
+ CS42L43_MIC_LVL_DET_DISABLE_MASK,
+ CS42L43_MIC_LVL_DET_DISABLE_MASK);
+
+ priv->button_detect_running = false;
+}
+
+#define CS42L43_BUTTON_COMB_MAX 512
+#define CS42L43_BUTTON_ROUT 2210
+
+void cs42l43_button_press_work(struct work_struct *work)
+{
+ struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec,
+ button_press_work.work);
+ struct cs42l43 *cs42l43 = priv->core;
+ unsigned int buttons = 0;
+ unsigned int val = 0;
+ int i, ret;
+
+ ret = pm_runtime_resume_and_get(priv->dev);
+ if (ret) {
+ dev_err(priv->dev, "Failed to resume for button press: %d\n", ret);
+ return;
+ }
+
+ mutex_lock(&priv->jack_lock);
+
+ if (!priv->button_detect_running) {
+ dev_dbg(priv->dev, "Spurious button press IRQ\n");
+ goto error;
+ }
+
+ regmap_read(cs42l43->regmap, CS42L43_DETECT_STATUS_1, &val);
+
+ /* Bail if jack removed, the button is irrelevant and likely invalid */
+ if (!cs42l43_jack_present(priv)) {
+ dev_dbg(priv->dev, "Button ignored due to removal\n");
+ goto error;
+ }
+
+ if (val & CS42L43_HSBIAS_CLAMP_STS_MASK) {
+ dev_dbg(priv->dev, "Button ignored due to bias sense\n");
+ goto error;
+ }
+
+ val = (val & CS42L43_HSDET_DC_STS_MASK) >> CS42L43_HSDET_DC_STS_SHIFT;
+ val = ((CS42L43_BUTTON_COMB_MAX << 20) / (val + 1)) - (1 << 20);
+ if (val)
+ val = (CS42L43_BUTTON_ROUT << 20) / val;
+ else
+ val = UINT_MAX;
+
+ for (i = 0; i < CS42L43_N_BUTTONS; i++) {
+ if (val < priv->buttons[i]) {
+ buttons = SND_JACK_BTN_0 >> i;
+ dev_dbg(priv->dev, "Detected button %d at %d Ohms\n", i, val);
+ break;
+ }
+ }
+
+ if (!buttons)
+ dev_dbg(priv->dev, "Unrecognised button: %d Ohms\n", val);
+
+ snd_soc_jack_report(priv->jack_hp, buttons, CS42L43_JACK_BUTTONS);
+
+error:
+ mutex_unlock(&priv->jack_lock);
+
+ pm_runtime_mark_last_busy(priv->dev);
+ pm_runtime_put_autosuspend(priv->dev);
+}
+
+irqreturn_t cs42l43_button_press(int irq, void *data)
+{
+ struct cs42l43_codec *priv = data;
+
+ // Wait for 2 full cycles of comb filter to ensure good reading
+ queue_delayed_work(system_wq, &priv->button_press_work,
+ msecs_to_jiffies(10));
+
+ return IRQ_HANDLED;
+}
+
+void cs42l43_button_release_work(struct work_struct *work)
+{
+ struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec,
+ button_release_work);
+ int ret;
+
+ ret = pm_runtime_resume_and_get(priv->dev);
+ if (ret) {
+ dev_err(priv->dev, "Failed to resume for button release: %d\n", ret);
+ return;
+ }
+
+ mutex_lock(&priv->jack_lock);
+
+ if (priv->button_detect_running) {
+ dev_dbg(priv->dev, "Button release IRQ\n");
+
+ snd_soc_jack_report(priv->jack_hp, 0, CS42L43_JACK_BUTTONS);
+ } else {
+ dev_dbg(priv->dev, "Spurious button release IRQ\n");
+ }
+
+ mutex_unlock(&priv->jack_lock);
+
+ pm_runtime_mark_last_busy(priv->dev);
+ pm_runtime_put_autosuspend(priv->dev);
+}
+
+irqreturn_t cs42l43_button_release(int irq, void *data)
+{
+ struct cs42l43_codec *priv = data;
+
+ queue_work(system_wq, &priv->button_release_work);
+
+ return IRQ_HANDLED;
+}
+
+void cs42l43_bias_sense_timeout(struct work_struct *work)
+{
+ struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec,
+ bias_sense_timeout.work);
+ struct cs42l43 *cs42l43 = priv->core;
+ int ret;
+
+ ret = pm_runtime_resume_and_get(priv->dev);
+ if (ret) {
+ dev_err(priv->dev, "Failed to resume for bias sense: %d\n", ret);
+ return;
+ }
+
+ mutex_lock(&priv->jack_lock);
+
+ if (cs42l43_jack_present(priv) && priv->button_detect_running) {
+ dev_dbg(priv->dev, "Bias sense timeout out, restore bias\n");
+
+ regmap_update_bits(cs42l43->regmap,
+ CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL,
+ CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 0);
+ regmap_update_bits(cs42l43->regmap,
+ CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL,
+ CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK,
+ CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK);
+ }
+
+ mutex_unlock(&priv->jack_lock);
+
+ pm_runtime_mark_last_busy(priv->dev);
+ pm_runtime_put_autosuspend(priv->dev);
+}
+
+static void cs42l43_start_load_detect(struct cs42l43_codec *priv)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+
+ dev_dbg(priv->dev, "Start load detect\n");
+
+ snd_soc_dapm_mutex_lock(snd_soc_component_get_dapm(priv->component));
+
+ priv->load_detect_running = true;
+
+ if (priv->hp_ena) {
+ unsigned long time_left;
+
+ reinit_completion(&priv->hp_shutdown);
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN8,
+ CS42L43_HP_EN_MASK, 0);
+
+ time_left = wait_for_completion_timeout(&priv->hp_shutdown,
+ msecs_to_jiffies(CS42L43_HP_TIMEOUT_MS));
+ if (!time_left)
+ dev_err(priv->dev, "Load detect HP power down timed out\n");
+ }
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN3,
+ CS42L43_ADC1_EN_MASK | CS42L43_ADC2_EN_MASK, 0);
+ regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG2, CS42L43_HP_HPF_EN_MASK, 0);
+ regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1,
+ CS42L43_HSBIAS_MODE_MASK, 0);
+ regmap_update_bits(cs42l43->regmap, CS42L43_CTRL,
+ CS42L43_ADPTPWR_MODE_MASK, 0x4 << CS42L43_ADPTPWR_MODE_SHIFT);
+ regmap_update_bits(cs42l43->regmap, CS42L43_PGAVOL,
+ CS42L43_HP_DIG_VOL_RAMP_MASK | CS42L43_HP_ANA_VOL_RAMP_MASK, 0x6);
+ regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG1,
+ CS42L43_HP_MSTR_VOL_CTRL_EN_MASK, 0);
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_HS2,
+ CS42L43_HS_CLAMP_DISABLE_MASK, CS42L43_HS_CLAMP_DISABLE_MASK);
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_LOADDETENA,
+ CS42L43_HPLOAD_DET_EN_MASK,
+ CS42L43_HPLOAD_DET_EN_MASK);
+
+ snd_soc_dapm_mutex_unlock(snd_soc_component_get_dapm(priv->component));
+}
+
+static void cs42l43_stop_load_detect(struct cs42l43_codec *priv)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+
+ dev_dbg(priv->dev, "Stop load detect\n");
+
+ snd_soc_dapm_mutex_lock(snd_soc_component_get_dapm(priv->component));
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_LOADDETENA,
+ CS42L43_HPLOAD_DET_EN_MASK, 0);
+ regmap_update_bits(cs42l43->regmap, CS42L43_HS2,
+ CS42L43_HS_CLAMP_DISABLE_MASK, 0);
+ regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG1,
+ CS42L43_HP_MSTR_VOL_CTRL_EN_MASK,
+ CS42L43_HP_MSTR_VOL_CTRL_EN_MASK);
+ regmap_update_bits(cs42l43->regmap, CS42L43_PGAVOL,
+ CS42L43_HP_DIG_VOL_RAMP_MASK | CS42L43_HP_ANA_VOL_RAMP_MASK,
+ 0x4 << CS42L43_HP_DIG_VOL_RAMP_SHIFT);
+ regmap_update_bits(cs42l43->regmap, CS42L43_CTRL,
+ CS42L43_ADPTPWR_MODE_MASK, 0x7 << CS42L43_ADPTPWR_MODE_SHIFT);
+ regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1,
+ CS42L43_HSBIAS_MODE_MASK, 0x1 << CS42L43_HSBIAS_MODE_SHIFT);
+ regmap_update_bits(cs42l43->regmap, CS42L43_DACCNFG2,
+ CS42L43_HP_HPF_EN_MASK, CS42L43_HP_HPF_EN_MASK);
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN3,
+ CS42L43_ADC1_EN_MASK | CS42L43_ADC2_EN_MASK,
+ priv->adc_ena);
+
+ if (priv->hp_ena) {
+ unsigned long time_left;
+
+ reinit_completion(&priv->hp_startup);
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_BLOCK_EN8,
+ CS42L43_HP_EN_MASK, priv->hp_ena);
+
+ time_left = wait_for_completion_timeout(&priv->hp_startup,
+ msecs_to_jiffies(CS42L43_HP_TIMEOUT_MS));
+ if (!time_left)
+ dev_err(priv->dev, "Load detect HP restore timed out\n");
+ }
+
+ priv->load_detect_running = false;
+
+ snd_soc_dapm_mutex_unlock(snd_soc_component_get_dapm(priv->component));
+}
+
+static int cs42l43_run_load_detect(struct cs42l43_codec *priv, bool mic)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+ unsigned int val = 0;
+ unsigned long time_left;
+
+ reinit_completion(&priv->load_detect);
+
+ cs42l43_start_load_detect(priv);
+ time_left = wait_for_completion_timeout(&priv->load_detect,
+ msecs_to_jiffies(CS42L43_LOAD_TIMEOUT_MS));
+ cs42l43_stop_load_detect(priv);
+
+ if (!time_left)
+ return -ETIMEDOUT;
+
+ regmap_read(cs42l43->regmap, CS42L43_LOADDETRESULTS, &val);
+
+ dev_dbg(priv->dev, "Headphone load detect: 0x%x\n", val);
+
+ /* Bail if jack removed, the load is irrelevant and likely invalid */
+ if (!cs42l43_jack_present(priv))
+ return -ENODEV;
+
+ if (mic) {
+ cs42l43_start_hs_bias(priv, false);
+ cs42l43_start_button_detect(priv);
+
+ return CS42L43_JACK_HEADSET;
+ }
+
+ switch (val & CS42L43_AMP3_RES_DET_MASK) {
+ case 0x0: // low impedance
+ case 0x1: // high impedance
+ return CS42L43_JACK_HEADPHONE;
+ case 0x2: // lineout
+ case 0x3: // Open circuit
+ return CS42L43_JACK_LINEOUT;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int cs42l43_run_type_detect(struct cs42l43_codec *priv)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+ int timeout_ms = ((2 * priv->detect_us) / 1000) + 200;
+ unsigned int type = 0xff;
+ unsigned long time_left;
+
+ reinit_completion(&priv->type_detect);
+
+ cs42l43_start_hs_bias(priv, true);
+ regmap_update_bits(cs42l43->regmap, CS42L43_HS2,
+ CS42L43_HSDET_MODE_MASK, 0x3 << CS42L43_HSDET_MODE_SHIFT);
+
+ time_left = wait_for_completion_timeout(&priv->type_detect,
+ msecs_to_jiffies(timeout_ms));
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_HS2,
+ CS42L43_HSDET_MODE_MASK, 0x2 << CS42L43_HSDET_MODE_SHIFT);
+ cs42l43_stop_hs_bias(priv);
+
+ if (!time_left)
+ return -ETIMEDOUT;
+
+ regmap_read(cs42l43->regmap, CS42L43_HS_STAT, &type);
+
+ dev_dbg(priv->dev, "Type detect: 0x%x\n", type);
+
+ /* Bail if jack removed, the type is irrelevant and likely invalid */
+ if (!cs42l43_jack_present(priv))
+ return -ENODEV;
+
+ switch (type & CS42L43_HSDET_TYPE_STS_MASK) {
+ case 0x0: // CTIA
+ case 0x1: // OMTP
+ return cs42l43_run_load_detect(priv, true);
+ case 0x2: // 3-pole
+ return cs42l43_run_load_detect(priv, false);
+ case 0x3: // Open-circuit
+ return CS42L43_JACK_EXTENSION;
+ default:
+ return -EINVAL;
+ }
+}
+
+static void cs42l43_clear_jack(struct cs42l43_codec *priv)
+{
+ struct cs42l43 *cs42l43 = priv->core;
+
+ cs42l43_stop_button_detect(priv);
+ cs42l43_stop_hs_bias(priv);
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL1,
+ CS42L43_PGA_WIDESWING_MODE_EN_MASK, 0);
+ regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL2,
+ CS42L43_PGA_WIDESWING_MODE_EN_MASK, 0);
+ regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CTRL,
+ CS42L43_JACK_STEREO_CONFIG_MASK, 0);
+ regmap_update_bits(cs42l43->regmap, CS42L43_HS2,
+ CS42L43_HSDET_MODE_MASK | CS42L43_HSDET_MANUAL_MODE_MASK,
+ 0x2 << CS42L43_HSDET_MODE_SHIFT);
+
+ snd_soc_jack_report(priv->jack_hp, 0, 0xFFFF);
+}
+
+void cs42l43_tip_sense_work(struct work_struct *work)
+{
+ struct cs42l43_codec *priv = container_of(work, struct cs42l43_codec,
+ tip_sense_work.work);
+ struct cs42l43 *cs42l43 = priv->core;
+ unsigned int sts = 0;
+ unsigned int tip, ring;
+ int ret, report;
+
+ ret = pm_runtime_resume_and_get(priv->dev);
+ if (ret) {
+ dev_err(priv->dev, "Failed to resume for tip work: %d\n", ret);
+ return;
+ }
+
+ mutex_lock(&priv->jack_lock);
+
+ regmap_read(cs42l43->regmap, CS42L43_TIP_RING_SENSE_INTERRUPT_STATUS, &sts);
+
+ dev_dbg(priv->dev, "Tip sense: 0x%x\n", sts);
+
+ tip = (sts >> CS42L43_TIPSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT;
+ ring = (sts >> CS42L43_RINGSENSE_PLUG_DB_STS_SHIFT) & CS42L43_JACK_PRESENT;
+
+ if (tip == CS42L43_JACK_PRESENT) {
+ if (cs42l43->sdw && !priv->jack_present) {
+ priv->jack_present = true;
+ pm_runtime_get(priv->dev);
+ }
+
+ if (priv->use_ring_sense && ring == CS42L43_JACK_ABSENT) {
+ report = CS42L43_JACK_OPTICAL;
+ } else {
+ report = cs42l43_run_type_detect(priv);
+ if (report < 0) {
+ dev_err(priv->dev, "Jack detect failed: %d\n", report);
+ goto error;
+ }
+ }
+
+ snd_soc_jack_report(priv->jack_hp, report, report);
+ } else {
+ priv->jack_override = 0;
+
+ cs42l43_clear_jack(priv);
+
+ if (cs42l43->sdw && priv->jack_present) {
+ pm_runtime_put(priv->dev);
+ priv->jack_present = false;
+ }
+ }
+
+error:
+ mutex_unlock(&priv->jack_lock);
+
+ pm_runtime_mark_last_busy(priv->dev);
+ pm_runtime_put_autosuspend(priv->dev);
+}
+
+irqreturn_t cs42l43_tip_sense(int irq, void *data)
+{
+ struct cs42l43_codec *priv = data;
+
+ cancel_delayed_work(&priv->bias_sense_timeout);
+ cancel_delayed_work(&priv->tip_sense_work);
+ cancel_delayed_work(&priv->button_press_work);
+ cancel_work(&priv->button_release_work);
+
+ queue_delayed_work(system_long_wq, &priv->tip_sense_work,
+ msecs_to_jiffies(priv->tip_debounce_ms));
+
+ return IRQ_HANDLED;
+}
+
+enum cs42l43_raw_jack {
+ CS42L43_JACK_RAW_CTIA = 0,
+ CS42L43_JACK_RAW_OMTP,
+ CS42L43_JACK_RAW_HEADPHONE,
+ CS42L43_JACK_RAW_LINE_OUT,
+ CS42L43_JACK_RAW_LINE_IN,
+ CS42L43_JACK_RAW_MICROPHONE,
+ CS42L43_JACK_RAW_OPTICAL,
+};
+
+#define CS42L43_JACK_3_POLE_SWITCHES ((0x2 << CS42L43_HSDET_MANUAL_MODE_SHIFT) | \
+ CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK | \
+ CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK | \
+ CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK | \
+ CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK | \
+ CS42L43_HSGND_HS3_SEL_MASK | \
+ CS42L43_HSGND_HS4_SEL_MASK)
+
+static const struct cs42l43_jack_override_mode {
+ unsigned int hsdet_mode;
+ unsigned int mic_ctrl;
+ unsigned int clamp_ctrl;
+ int report;
+} cs42l43_jack_override_modes[] = {
+ [CS42L43_JACK_RAW_CTIA] = {
+ .hsdet_mode = CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK |
+ CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK |
+ CS42L43_HSBIAS_OUT_HS4_SEL_MASK |
+ CS42L43_HSGND_HS3_SEL_MASK,
+ .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK,
+ .report = CS42L43_JACK_HEADSET,
+ },
+ [CS42L43_JACK_RAW_OMTP] = {
+ .hsdet_mode = (0x1 << CS42L43_HSDET_MANUAL_MODE_SHIFT) |
+ CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK |
+ CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK |
+ CS42L43_HSBIAS_OUT_HS3_SEL_MASK |
+ CS42L43_HSGND_HS4_SEL_MASK,
+ .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK,
+ .report = CS42L43_JACK_HEADSET,
+ },
+ [CS42L43_JACK_RAW_HEADPHONE] = {
+ .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES,
+ .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK,
+ .report = CS42L43_JACK_HEADPHONE,
+ },
+ [CS42L43_JACK_RAW_LINE_OUT] = {
+ .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES,
+ .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK,
+ .report = CS42L43_JACK_LINEOUT,
+ },
+ [CS42L43_JACK_RAW_LINE_IN] = {
+ .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES,
+ .mic_ctrl = 0x2 << CS42L43_JACK_STEREO_CONFIG_SHIFT,
+ .report = CS42L43_JACK_LINEIN,
+ },
+ [CS42L43_JACK_RAW_MICROPHONE] = {
+ .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES,
+ .mic_ctrl = (0x3 << CS42L43_JACK_STEREO_CONFIG_SHIFT) |
+ CS42L43_HS1_BIAS_EN_MASK | CS42L43_HS2_BIAS_EN_MASK,
+ .report = CS42L43_JACK_LINEIN,
+ },
+ [CS42L43_JACK_RAW_OPTICAL] = {
+ .hsdet_mode = CS42L43_JACK_3_POLE_SWITCHES,
+ .clamp_ctrl = CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK,
+ .report = CS42L43_JACK_OPTICAL,
+ },
+};
+
+static const char * const cs42l43_jack_text[] = {
+ "None", "CTIA", "OMTP", "Headphone", "Line-Out",
+ "Line-In", "Microphone", "Optical",
+};
+
+SOC_ENUM_SINGLE_VIRT_DECL(cs42l43_jack_enum, cs42l43_jack_text);
+
+int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+ struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component);
+
+ mutex_lock(&priv->jack_lock);
+ ucontrol->value.integer.value[0] = priv->jack_override;
+ mutex_unlock(&priv->jack_lock);
+
+ return 0;
+}
+
+int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+ struct cs42l43_codec *priv = snd_soc_component_get_drvdata(component);
+ struct cs42l43 *cs42l43 = priv->core;
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ unsigned int override = ucontrol->value.integer.value[0];
+
+ BUILD_BUG_ON(ARRAY_SIZE(cs42l43_jack_override_modes) !=
+ ARRAY_SIZE(cs42l43_jack_text) - 1);
+
+ if (override >= e->items)
+ return -EINVAL;
+
+ mutex_lock(&priv->jack_lock);
+
+ if (!cs42l43_jack_present(priv)) {
+ mutex_unlock(&priv->jack_lock);
+ return -EBUSY;
+ }
+
+ if (override == priv->jack_override) {
+ mutex_unlock(&priv->jack_lock);
+ return 0;
+ }
+
+ priv->jack_override = override;
+
+ cs42l43_clear_jack(priv);
+
+ if (!override) {
+ queue_delayed_work(system_long_wq, &priv->tip_sense_work, 0);
+ } else {
+ override--;
+
+ regmap_update_bits(cs42l43->regmap, CS42L43_HS2,
+ CS42L43_HSDET_MODE_MASK |
+ CS42L43_HSDET_MANUAL_MODE_MASK |
+ CS42L43_AMP3_4_GNDREF_HS3_SEL_MASK |
+ CS42L43_AMP3_4_GNDREF_HS4_SEL_MASK |
+ CS42L43_HSBIAS_GNDREF_HS3_SEL_MASK |
+ CS42L43_HSBIAS_GNDREF_HS4_SEL_MASK |
+ CS42L43_HSBIAS_OUT_HS3_SEL_MASK |
+ CS42L43_HSBIAS_OUT_HS4_SEL_MASK |
+ CS42L43_HSGND_HS3_SEL_MASK |
+ CS42L43_HSGND_HS4_SEL_MASK,
+ cs42l43_jack_override_modes[override].hsdet_mode);
+ regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CTRL,
+ CS42L43_HS2_BIAS_EN_MASK | CS42L43_HS1_BIAS_EN_MASK |
+ CS42L43_JACK_STEREO_CONFIG_MASK,
+ cs42l43_jack_override_modes[override].mic_ctrl);
+ regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL,
+ CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_MASK,
+ cs42l43_jack_override_modes[override].clamp_ctrl);
+
+ switch (override) {
+ case CS42L43_JACK_RAW_CTIA:
+ case CS42L43_JACK_RAW_OMTP:
+ cs42l43_start_hs_bias(priv, false);
+ cs42l43_start_button_detect(priv);
+ break;
+ case CS42L43_JACK_RAW_LINE_IN:
+ regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL1,
+ CS42L43_PGA_WIDESWING_MODE_EN_MASK,
+ CS42L43_PGA_WIDESWING_MODE_EN_MASK);
+ regmap_update_bits(cs42l43->regmap, CS42L43_ADC_B_CTRL2,
+ CS42L43_PGA_WIDESWING_MODE_EN_MASK,
+ CS42L43_PGA_WIDESWING_MODE_EN_MASK);
+ break;
+ case CS42L43_JACK_RAW_MICROPHONE:
+ cs42l43_start_hs_bias(priv, false);
+ break;
+ default:
+ break;
+ }
+
+ snd_soc_jack_report(priv->jack_hp,
+ cs42l43_jack_override_modes[override].report,
+ cs42l43_jack_override_modes[override].report);
+ }
+
+ mutex_unlock(&priv->jack_lock);
+
+ return 1;
+}