[PATCH] ASoC: codecs: wcd938x: add Multi Button Headset Control support
Srinivas Kandagatla
srinivas.kandagatla at linaro.org
Fri Jul 16 12:59:18 CEST 2021
WCD938x has Multi Button Headset Control hardware to support Headset
insertion, type detection, 8 headset buttons detection, Over Current
detection and Impedence measurements.
This patch adds support for this using wcd-mbhc apis.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
---
sound/soc/codecs/Kconfig | 1 +
sound/soc/codecs/wcd938x.c | 841 ++++++++++++++++++++++++++++++++++++-
2 files changed, 819 insertions(+), 23 deletions(-)
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 6d4c65d6fadd..57437eef1125 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -1563,6 +1563,7 @@ config SND_SOC_WCD938X
config SND_SOC_WCD938X_SDW
tristate "WCD9380/WCD9385 Codec - SDW"
select SND_SOC_WCD938X
+ select SND_SOC_WCD_MBHC
depends on SOUNDWIRE
select REGMAP_SOUNDWIRE
help
diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index e5795cd964f7..90e072a78ebf 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -21,6 +21,7 @@
#include <linux/regulator/consumer.h>
#include "wcd-clsh-v2.h"
+#include "wcd-mbhc-v2.h"
#include "wcd938x.h"
#define WCD938X_MAX_MICBIAS (4)
@@ -173,6 +174,11 @@ struct wcd938x_priv {
struct device *rxdev;
struct device_node *rxnode, *txnode;
struct regmap *regmap;
+ struct mutex micb_lock;
+ /* mbhc module */
+ struct wcd_mbhc *wcd_mbhc;
+ struct wcd_mbhc_config mbhc_cfg;
+ struct wcd_mbhc_intr intr_ids;
struct wcd_clsh_ctrl *clsh_info;
struct irq_domain *virq;
struct regmap_irq_chip *wcd_regmap_irq_chip;
@@ -201,24 +207,70 @@ struct wcd938x_priv {
bool bcs_dis;
};
-enum {
- MIC_BIAS_1 = 1,
- MIC_BIAS_2,
- MIC_BIAS_3,
- MIC_BIAS_4
-};
-
-enum {
- MICB_PULLUP_ENABLE,
- MICB_PULLUP_DISABLE,
- MICB_ENABLE,
- MICB_DISABLE,
-};
-
static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(ear_pa_gain, 600, -1800);
static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(line_gain, 600, -3000);
static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(analog_gain, 0, 3000);
+struct wcd938x_mbhc_zdet_param {
+ u16 ldo_ctl;
+ u16 noff;
+ u16 nshift;
+ u16 btn5;
+ u16 btn6;
+ u16 btn7;
+};
+
+static struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
+ WCD_MBHC_FIELD(WCD_MBHC_L_DET_EN, WCD938X_ANA_MBHC_MECH, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_GND_DET_EN, WCD938X_ANA_MBHC_MECH, 0x40),
+ WCD_MBHC_FIELD(WCD_MBHC_MECH_DETECTION_TYPE, WCD938X_ANA_MBHC_MECH, 0x20),
+ WCD_MBHC_FIELD(WCD_MBHC_MIC_CLAMP_CTL, WCD938X_MBHC_NEW_PLUG_DETECT_CTL, 0x30),
+ WCD_MBHC_FIELD(WCD_MBHC_ELECT_DETECTION_TYPE, WCD938X_ANA_MBHC_ELECT, 0x08),
+ WCD_MBHC_FIELD(WCD_MBHC_HS_L_DET_PULL_UP_CTRL, WCD938X_MBHC_NEW_INT_MECH_DET_CURRENT, 0x1F),
+ WCD_MBHC_FIELD(WCD_MBHC_HS_L_DET_PULL_UP_COMP_CTRL, WCD938X_ANA_MBHC_MECH, 0x04),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_PLUG_TYPE, WCD938X_ANA_MBHC_MECH, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_GND_PLUG_TYPE, WCD938X_ANA_MBHC_MECH, 0x08),
+ WCD_MBHC_FIELD(WCD_MBHC_SW_HPH_LP_100K_TO_GND, WCD938X_ANA_MBHC_MECH, 0x01),
+ WCD_MBHC_FIELD(WCD_MBHC_ELECT_SCHMT_ISRC, WCD938X_ANA_MBHC_ELECT, 0x06),
+ WCD_MBHC_FIELD(WCD_MBHC_FSM_EN, WCD938X_ANA_MBHC_ELECT, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_INSREM_DBNC, WCD938X_MBHC_NEW_PLUG_DETECT_CTL, 0x0F),
+ WCD_MBHC_FIELD(WCD_MBHC_BTN_DBNC, WCD938X_MBHC_NEW_CTL_1, 0x03),
+ WCD_MBHC_FIELD(WCD_MBHC_HS_VREF, WCD938X_MBHC_NEW_CTL_2, 0x03),
+ WCD_MBHC_FIELD(WCD_MBHC_HS_COMP_RESULT, WCD938X_ANA_MBHC_RESULT_3, 0x08),
+ WCD_MBHC_FIELD(WCD_MBHC_IN2P_CLAMP_STATE, WCD938X_ANA_MBHC_RESULT_3, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_MIC_SCHMT_RESULT, WCD938X_ANA_MBHC_RESULT_3, 0x20),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_SCHMT_RESULT, WCD938X_ANA_MBHC_RESULT_3, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHR_SCHMT_RESULT, WCD938X_ANA_MBHC_RESULT_3, 0x40),
+ WCD_MBHC_FIELD(WCD_MBHC_OCP_FSM_EN, WCD938X_HPH_OCP_CTL, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_BTN_RESULT, WCD938X_ANA_MBHC_RESULT_3, 0x07),
+ WCD_MBHC_FIELD(WCD_MBHC_BTN_ISRC_CTL, WCD938X_ANA_MBHC_ELECT, 0x70),
+ WCD_MBHC_FIELD(WCD_MBHC_ELECT_RESULT, WCD938X_ANA_MBHC_RESULT_3, 0xFF),
+ WCD_MBHC_FIELD(WCD_MBHC_MICB_CTRL, WCD938X_ANA_MICB2, 0xC0),
+ WCD_MBHC_FIELD(WCD_MBHC_HPH_CNP_WG_TIME, WCD938X_HPH_CNP_WG_TIME, 0xFF),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHR_PA_EN, WCD938X_ANA_HPH, 0x40),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_PA_EN, WCD938X_ANA_HPH, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_HPH_PA_EN, WCD938X_ANA_HPH, 0xC0),
+ WCD_MBHC_FIELD(WCD_MBHC_SWCH_LEVEL_REMOVE, WCD938X_ANA_MBHC_RESULT_3, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_ANC_DET_EN, WCD938X_MBHC_CTL_BCS, 0x02),
+ WCD_MBHC_FIELD(WCD_MBHC_FSM_STATUS, WCD938X_MBHC_NEW_FSM_STATUS, 0x01),
+ WCD_MBHC_FIELD(WCD_MBHC_MUX_CTL, WCD938X_MBHC_NEW_CTL_2, 0x70),
+ WCD_MBHC_FIELD(WCD_MBHC_MOISTURE_STATUS, WCD938X_MBHC_NEW_FSM_STATUS, 0x20),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHR_GND, WCD938X_HPH_PA_CTL2, 0x40),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_GND, WCD938X_HPH_PA_CTL2, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_OCP_DET_EN, WCD938X_HPH_L_TEST, 0x01),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHR_OCP_DET_EN, WCD938X_HPH_R_TEST, 0x01),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_OCP_STATUS, WCD938X_DIGITAL_INTR_STATUS_0, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHR_OCP_STATUS, WCD938X_DIGITAL_INTR_STATUS_0, 0x20),
+ WCD_MBHC_FIELD(WCD_MBHC_ADC_EN, WCD938X_MBHC_NEW_CTL_1, 0x08),
+ WCD_MBHC_FIELD(WCD_MBHC_ADC_COMPLETE, WCD938X_MBHC_NEW_FSM_STATUS, 0x40),
+ WCD_MBHC_FIELD(WCD_MBHC_ADC_TIMEOUT, WCD938X_MBHC_NEW_FSM_STATUS, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_ADC_RESULT, WCD938X_MBHC_NEW_ADC_RESULT, 0xFF),
+ WCD_MBHC_FIELD(WCD_MBHC_MICB2_VOUT, WCD938X_ANA_MICB2, 0x3F),
+ WCD_MBHC_FIELD(WCD_MBHC_ADC_MODE, WCD938X_MBHC_NEW_CTL_1, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_DETECTION_DONE, WCD938X_MBHC_NEW_CTL_1, 0x04),
+ WCD_MBHC_FIELD(WCD_MBHC_ELECT_ISRC_EN, WCD938X_ANA_MBHC_ZDET, 0x02),
+};
+
static const struct reg_default wcd938x_defaults[] = {
{WCD938X_ANA_PAGE_REGISTER, 0x00},
{WCD938X_ANA_BIAS, 0x00},
@@ -1725,6 +1777,8 @@ static int wcd938x_codec_enable_hphr_pa(struct snd_soc_dapm_widget *w,
usleep_range(7000, 7100);
snd_soc_component_write_field(component, WCD938X_ANA_HPH,
WCD938X_HPHR_EN_MASK, 0);
+ wcd_mbhc_event_notify(wcd938x->wcd_mbhc,
+ WCD_EVENT_PRE_HPHR_PA_OFF);
set_bit(HPH_PA_DELAY, &wcd938x->status_mask);
break;
case SND_SOC_DAPM_POST_PMD:
@@ -1740,6 +1794,8 @@ static int wcd938x_codec_enable_hphr_pa(struct snd_soc_dapm_widget *w,
usleep_range(7000, 7100);
clear_bit(HPH_PA_DELAY, &wcd938x->status_mask);
}
+ wcd_mbhc_event_notify(wcd938x->wcd_mbhc,
+ WCD_EVENT_POST_HPHR_PA_OFF);
snd_soc_component_write_field(component, WCD938X_ANA_HPH,
WCD938X_HPHR_REF_EN_MASK, 0);
snd_soc_component_write_field(component, WCD938X_DIGITAL_PDM_WD_CTL1,
@@ -1827,6 +1883,7 @@ static int wcd938x_codec_enable_hphl_pa(struct snd_soc_dapm_widget *w,
usleep_range(7000, 7100);
snd_soc_component_write_field(component, WCD938X_ANA_HPH,
WCD938X_HPHL_EN_MASK, 0);
+ wcd_mbhc_event_notify(wcd938x->wcd_mbhc, WCD_EVENT_PRE_HPHL_PA_OFF);
set_bit(HPH_PA_DELAY, &wcd938x->status_mask);
break;
case SND_SOC_DAPM_POST_PMD:
@@ -1842,6 +1899,8 @@ static int wcd938x_codec_enable_hphl_pa(struct snd_soc_dapm_widget *w,
usleep_range(7000, 7100);
clear_bit(HPH_PA_DELAY, &wcd938x->status_mask);
}
+ wcd_mbhc_event_notify(wcd938x->wcd_mbhc,
+ WCD_EVENT_POST_HPHL_PA_OFF);
snd_soc_component_write_field(component, WCD938X_ANA_HPH,
WCD938X_HPHL_REF_EN_MASK, 0);
snd_soc_component_write_field(component, WCD938X_DIGITAL_PDM_WD_CTL0,
@@ -2352,7 +2411,14 @@ static int wcd938x_micbias_control(struct snd_soc_component *component,
snd_soc_component_write_field(component, micb_reg,
WCD938X_MICB_EN_MASK,
WCD938X_MICB_ENABLE);
+ if (micb_num == MIC_BIAS_2)
+ wcd_mbhc_event_notify(wcd938x->wcd_mbhc,
+ WCD_EVENT_POST_MICBIAS_2_ON);
}
+ if (micb_num == MIC_BIAS_2 && is_dapm)
+ wcd_mbhc_event_notify(wcd938x->wcd_mbhc,
+ WCD_EVENT_POST_DAPM_MICBIAS_2_ON);
+
break;
case MICB_DISABLE:
@@ -2366,10 +2432,19 @@ static int wcd938x_micbias_control(struct snd_soc_component *component,
WCD938X_MICB_PULL_UP);
else if ((wcd938x->micb_ref[micb_index] == 0) &&
(wcd938x->pullup_ref[micb_index] == 0)) {
+ if (micb_num == MIC_BIAS_2)
+ wcd_mbhc_event_notify(wcd938x->wcd_mbhc,
+ WCD_EVENT_PRE_MICBIAS_2_OFF);
snd_soc_component_write_field(component, micb_reg,
WCD938X_MICB_EN_MASK, 0);
+ if (micb_num == MIC_BIAS_2)
+ wcd_mbhc_event_notify(wcd938x->wcd_mbhc,
+ WCD_EVENT_POST_MICBIAS_2_OFF);
}
+ if (is_dapm && micb_num == MIC_BIAS_2)
+ wcd_mbhc_event_notify(wcd938x->wcd_mbhc,
+ WCD_EVENT_POST_DAPM_MICBIAS_2_OFF);
break;
}
@@ -2842,6 +2917,704 @@ static int wcd938x_set_swr_port(struct snd_kcontrol *kcontrol,
}
+/* MBHC related */
+static void wcd938x_mbhc_clk_setup(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_write_field(component, WCD938X_MBHC_NEW_CTL_1,
+ WCD938X_MBHC_CTL_RCO_EN_MASK, enable);
+}
+
+static void wcd938x_mbhc_mbhc_bias_control(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_write_field(component, WCD938X_ANA_MBHC_ELECT,
+ WCD938X_ANA_MBHC_BIAS_EN, enable);
+}
+
+static void wcd938x_mbhc_program_btn_thr(struct snd_soc_component *component,
+ int *btn_low, int *btn_high,
+ int num_btn, bool is_micbias)
+{
+ int i, vth;
+
+ if (num_btn > WCD_MBHC_DEF_BUTTONS) {
+ dev_err(component->dev, "%s: invalid number of buttons: %d\n",
+ __func__, num_btn);
+ return;
+ }
+
+ for (i = 0; i < num_btn; i++) {
+ vth = ((btn_high[i] * 2) / 25) & 0x3F;
+ snd_soc_component_write_field(component, WCD938X_ANA_MBHC_BTN0 + i,
+ WCD938X_MBHC_BTN_VTH_MASK, vth);
+ dev_dbg(component->dev, "%s: btn_high[%d]: %d, vth: %d\n",
+ __func__, i, btn_high[i], vth);
+ }
+}
+
+static bool wcd938x_mbhc_micb_en_status(struct snd_soc_component *component, int micb_num)
+{
+ u8 val;
+
+ if (micb_num == MIC_BIAS_2) {
+ val = snd_soc_component_read_field(component,
+ WCD938X_ANA_MICB2,
+ WCD938X_ANA_MICB2_ENABLE_MASK);
+ if (val == WCD938X_MICB_ENABLE)
+ return true;
+ }
+ return false;
+}
+
+static void wcd938x_mbhc_hph_l_pull_up_control(struct snd_soc_component *component,
+ int pull_up_cur)
+{
+ /* Default pull up current to 2uA */
+ if (pull_up_cur > HS_PULLUP_I_OFF || pull_up_cur < HS_PULLUP_I_3P0_UA)
+ pull_up_cur = HS_PULLUP_I_2P0_UA;
+
+ snd_soc_component_write_field(component,
+ WCD938X_MBHC_NEW_INT_MECH_DET_CURRENT,
+ WCD938X_HSDET_PULLUP_C_MASK, pull_up_cur);
+}
+
+static int wcd938x_mbhc_request_micbias(struct snd_soc_component *component,
+ int micb_num, int req)
+{
+ return wcd938x_micbias_control(component, micb_num, req, false);
+}
+
+static void wcd938x_mbhc_micb_ramp_control(struct snd_soc_component *component,
+ bool enable)
+{
+ if (enable) {
+ snd_soc_component_write_field(component, WCD938X_ANA_MICB2_RAMP,
+ WCD938X_RAMP_SHIFT_CTRL_MASK, 0x0C);
+ snd_soc_component_write_field(component, WCD938X_ANA_MICB2_RAMP,
+ WCD938X_RAMP_EN_MASK, 1);
+ } else {
+ snd_soc_component_write_field(component, WCD938X_ANA_MICB2_RAMP,
+ WCD938X_RAMP_EN_MASK, 0);
+ snd_soc_component_write_field(component, WCD938X_ANA_MICB2_RAMP,
+ WCD938X_RAMP_SHIFT_CTRL_MASK, 0);
+ }
+}
+
+static int wcd938x_get_micb_vout_ctl_val(u32 micb_mv)
+{
+ /* min micbias voltage is 1V and maximum is 2.85V */
+ if (micb_mv < 1000 || micb_mv > 2850)
+ return -EINVAL;
+
+ return (micb_mv - 1000) / 50;
+}
+
+static int wcd938x_mbhc_micb_adjust_voltage(struct snd_soc_component *component,
+ int req_volt, int micb_num)
+{
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+ int cur_vout_ctl, req_vout_ctl, micb_reg, micb_en, ret = 0;
+
+ switch (micb_num) {
+ case MIC_BIAS_1:
+ micb_reg = WCD938X_ANA_MICB1;
+ break;
+ case MIC_BIAS_2:
+ micb_reg = WCD938X_ANA_MICB2;
+ break;
+ case MIC_BIAS_3:
+ micb_reg = WCD938X_ANA_MICB3;
+ break;
+ case MIC_BIAS_4:
+ micb_reg = WCD938X_ANA_MICB4;
+ break;
+ default:
+ return -EINVAL;
+ }
+ mutex_lock(&wcd938x->micb_lock);
+ /*
+ * If requested micbias voltage is same as current micbias
+ * voltage, then just return. Otherwise, adjust voltage as
+ * per requested value. If micbias is already enabled, then
+ * to avoid slow micbias ramp-up or down enable pull-up
+ * momentarily, change the micbias value and then re-enable
+ * micbias.
+ */
+ micb_en = snd_soc_component_read_field(component, micb_reg,
+ WCD938X_MICB_EN_MASK);
+ cur_vout_ctl = snd_soc_component_read_field(component, micb_reg,
+ WCD938X_MICB_VOUT_MASK);
+
+ req_vout_ctl = wcd938x_get_micb_vout_ctl_val(req_volt);
+ if (req_vout_ctl < 0) {
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ if (cur_vout_ctl == req_vout_ctl) {
+ ret = 0;
+ goto exit;
+ }
+
+ if (micb_en == WCD938X_MICB_ENABLE)
+ snd_soc_component_write_field(component, micb_reg,
+ WCD938X_MICB_EN_MASK,
+ WCD938X_MICB_PULL_UP);
+
+ snd_soc_component_write_field(component, micb_reg,
+ WCD938X_MICB_VOUT_MASK,
+ req_vout_ctl);
+
+ if (micb_en == WCD938X_MICB_ENABLE) {
+ snd_soc_component_write_field(component, micb_reg,
+ WCD938X_MICB_EN_MASK,
+ WCD938X_MICB_ENABLE);
+ /*
+ * Add 2ms delay as per HW requirement after enabling
+ * micbias
+ */
+ usleep_range(2000, 2100);
+ }
+exit:
+ mutex_unlock(&wcd938x->micb_lock);
+ return ret;
+}
+
+static int wcd938x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *component,
+ int micb_num, bool req_en)
+{
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+ int rc, micb_mv;
+
+ if (micb_num != MIC_BIAS_2)
+ return -EINVAL;
+ /*
+ * If device tree micbias level is already above the minimum
+ * voltage needed to detect threshold microphone, then do
+ * not change the micbias, just return.
+ */
+ if (wcd938x->micb2_mv >= WCD_MBHC_THR_HS_MICB_MV)
+ return 0;
+
+ micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd938x->micb2_mv;
+
+ rc = wcd938x_mbhc_micb_adjust_voltage(component, micb_mv, MIC_BIAS_2);
+
+ return rc;
+}
+
+static inline void wcd938x_mbhc_get_result_params(struct wcd938x_priv *wcd938x,
+ s16 *d1_a, u16 noff,
+ int32_t *zdet)
+{
+ int i;
+ int val, val1;
+ s16 c1;
+ s32 x1, d1;
+ int32_t denom;
+ int minCode_param[] = {
+ 3277, 1639, 820, 410, 205, 103, 52, 26
+ };
+
+ regmap_update_bits(wcd938x->regmap, WCD938X_ANA_MBHC_ZDET, 0x20, 0x20);
+ for (i = 0; i < WCD938X_ZDET_NUM_MEASUREMENTS; i++) {
+ regmap_read(wcd938x->regmap, WCD938X_ANA_MBHC_RESULT_2, &val);
+ if (val & 0x80)
+ break;
+ }
+ val = val << 0x8;
+ regmap_read(wcd938x->regmap, WCD938X_ANA_MBHC_RESULT_1, &val1);
+ val |= val1;
+ regmap_update_bits(wcd938x->regmap, WCD938X_ANA_MBHC_ZDET, 0x20, 0x00);
+ x1 = WCD938X_MBHC_GET_X1(val);
+ c1 = WCD938X_MBHC_GET_C1(val);
+ /* If ramp is not complete, give additional 5ms */
+ if ((c1 < 2) && x1)
+ usleep_range(5000, 5050);
+
+ if (!c1 || !x1) {
+ pr_err("%s: Impedance detect ramp error, c1=%d, x1=0x%x\n",
+ __func__, c1, x1);
+ goto ramp_down;
+ }
+ d1 = d1_a[c1];
+ denom = (x1 * d1) - (1 << (14 - noff));
+ if (denom > 0)
+ *zdet = (WCD938X_MBHC_ZDET_CONST * 1000) / denom;
+ else if (x1 < minCode_param[noff])
+ *zdet = WCD938X_ZDET_FLOATING_IMPEDANCE;
+
+ pr_err("%s: d1=%d, c1=%d, x1=0x%x, z_val=%d(milliOhm)\n",
+ __func__, d1, c1, x1, *zdet);
+ramp_down:
+ i = 0;
+ while (x1) {
+ regmap_read(wcd938x->regmap,
+ WCD938X_ANA_MBHC_RESULT_1, &val);
+ regmap_read(wcd938x->regmap,
+ WCD938X_ANA_MBHC_RESULT_2, &val1);
+ val = val << 0x08;
+ val |= val1;
+ x1 = WCD938X_MBHC_GET_X1(val);
+ i++;
+ if (i == WCD938X_ZDET_NUM_MEASUREMENTS)
+ break;
+ }
+}
+
+static void wcd938x_mbhc_zdet_ramp(struct snd_soc_component *component,
+ struct wcd938x_mbhc_zdet_param *zdet_param,
+ int32_t *zl, int32_t *zr, s16 *d1_a)
+{
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+ int32_t zdet = 0;
+
+ snd_soc_component_write_field(component, WCD938X_MBHC_NEW_ZDET_ANA_CTL,
+ WCD938X_ZDET_MAXV_CTL_MASK, zdet_param->ldo_ctl);
+ snd_soc_component_update_bits(component, WCD938X_ANA_MBHC_BTN5,
+ WCD938X_VTH_MASK, zdet_param->btn5);
+ snd_soc_component_update_bits(component, WCD938X_ANA_MBHC_BTN6,
+ WCD938X_VTH_MASK, zdet_param->btn6);
+ snd_soc_component_update_bits(component, WCD938X_ANA_MBHC_BTN7,
+ WCD938X_VTH_MASK, zdet_param->btn7);
+ snd_soc_component_write_field(component, WCD938X_MBHC_NEW_ZDET_ANA_CTL,
+ WCD938X_ZDET_RANGE_CTL_MASK, zdet_param->noff);
+ snd_soc_component_update_bits(component, WCD938X_MBHC_NEW_ZDET_RAMP_CTL,
+ 0x0F, zdet_param->nshift);
+
+ if (!zl)
+ goto z_right;
+ /* Start impedance measurement for HPH_L */
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_ANA_MBHC_ZDET, 0x80, 0x80);
+ dev_dbg(component->dev, "%s: ramp for HPH_L, noff = %d\n",
+ __func__, zdet_param->noff);
+ wcd938x_mbhc_get_result_params(wcd938x, d1_a, zdet_param->noff, &zdet);
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_ANA_MBHC_ZDET, 0x80, 0x00);
+
+ *zl = zdet;
+
+z_right:
+ if (!zr)
+ return;
+ /* Start impedance measurement for HPH_R */
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_ANA_MBHC_ZDET, 0x40, 0x40);
+ dev_dbg(component->dev, "%s: ramp for HPH_R, noff = %d\n",
+ __func__, zdet_param->noff);
+ wcd938x_mbhc_get_result_params(wcd938x, d1_a, zdet_param->noff, &zdet);
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_ANA_MBHC_ZDET, 0x40, 0x00);
+
+ *zr = zdet;
+}
+
+static inline void wcd938x_wcd_mbhc_qfuse_cal(struct snd_soc_component *component,
+ int32_t *z_val, int flag_l_r)
+{
+ s16 q1;
+ int q1_cal;
+
+ if (*z_val < (WCD938X_ZDET_VAL_400/1000))
+ q1 = snd_soc_component_read(component,
+ WCD938X_DIGITAL_EFUSE_REG_23 + (2 * flag_l_r));
+ else
+ q1 = snd_soc_component_read(component,
+ WCD938X_DIGITAL_EFUSE_REG_24 + (2 * flag_l_r));
+ if (q1 & 0x80)
+ q1_cal = (10000 - ((q1 & 0x7F) * 25));
+ else
+ q1_cal = (10000 + (q1 * 25));
+ if (q1_cal > 0)
+ *z_val = ((*z_val) * 10000) / q1_cal;
+}
+
+static void wcd938x_wcd_mbhc_calc_impedance(struct snd_soc_component *component,
+ uint32_t *zl, uint32_t *zr)
+{
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+ s16 reg0, reg1, reg2, reg3, reg4;
+ int32_t z1L, z1R, z1Ls;
+ int zMono, z_diff1, z_diff2;
+ bool is_fsm_disable = false;
+ struct wcd938x_mbhc_zdet_param zdet_param[] = {
+ {4, 0, 4, 0x08, 0x14, 0x18}, /* < 32ohm */
+ {2, 0, 3, 0x18, 0x7C, 0x90}, /* 32ohm < Z < 400ohm */
+ {1, 4, 5, 0x18, 0x7C, 0x90}, /* 400ohm < Z < 1200ohm */
+ {1, 6, 7, 0x18, 0x7C, 0x90}, /* >1200ohm */
+ };
+ struct wcd938x_mbhc_zdet_param *zdet_param_ptr = NULL;
+ s16 d1_a[][4] = {
+ {0, 30, 90, 30},
+ {0, 30, 30, 5},
+ {0, 30, 30, 5},
+ {0, 30, 30, 5},
+ };
+ s16 *d1 = NULL;
+
+ reg0 = snd_soc_component_read(component, WCD938X_ANA_MBHC_BTN5);
+ reg1 = snd_soc_component_read(component, WCD938X_ANA_MBHC_BTN6);
+ reg2 = snd_soc_component_read(component, WCD938X_ANA_MBHC_BTN7);
+ reg3 = snd_soc_component_read(component, WCD938X_MBHC_CTL_CLK);
+ reg4 = snd_soc_component_read(component, WCD938X_MBHC_NEW_ZDET_ANA_CTL);
+
+ if (snd_soc_component_read(component, WCD938X_ANA_MBHC_ELECT) & 0x80) {
+ is_fsm_disable = true;
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_ANA_MBHC_ELECT, 0x80, 0x00);
+ }
+
+ /* For NO-jack, disable L_DET_EN before Z-det measurements */
+ if (wcd938x->mbhc_cfg.hphl_swh)
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_ANA_MBHC_MECH, 0x80, 0x00);
+
+ /* Turn off 100k pull down on HPHL */
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_ANA_MBHC_MECH, 0x01, 0x00);
+
+ /* Disable surge protection before impedance detection.
+ * This is done to give correct value for high impedance.
+ */
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_HPH_SURGE_HPHLR_SURGE_EN, 0xC0, 0x00);
+ /* 1ms delay needed after disable surge protection */
+ usleep_range(1000, 1010);
+
+ /* First get impedance on Left */
+ d1 = d1_a[1];
+ zdet_param_ptr = &zdet_param[1];
+ wcd938x_mbhc_zdet_ramp(component, zdet_param_ptr, &z1L, NULL, d1);
+
+ if (!WCD938X_MBHC_IS_SECOND_RAMP_REQUIRED(z1L))
+ goto left_ch_impedance;
+
+ /* Second ramp for left ch */
+ if (z1L < WCD938X_ZDET_VAL_32) {
+ zdet_param_ptr = &zdet_param[0];
+ d1 = d1_a[0];
+ } else if ((z1L > WCD938X_ZDET_VAL_400) &&
+ (z1L <= WCD938X_ZDET_VAL_1200)) {
+ zdet_param_ptr = &zdet_param[2];
+ d1 = d1_a[2];
+ } else if (z1L > WCD938X_ZDET_VAL_1200) {
+ zdet_param_ptr = &zdet_param[3];
+ d1 = d1_a[3];
+ }
+ wcd938x_mbhc_zdet_ramp(component, zdet_param_ptr, &z1L, NULL, d1);
+
+left_ch_impedance:
+ if ((z1L == WCD938X_ZDET_FLOATING_IMPEDANCE) ||
+ (z1L > WCD938X_ZDET_VAL_100K)) {
+ *zl = WCD938X_ZDET_FLOATING_IMPEDANCE;
+ zdet_param_ptr = &zdet_param[1];
+ d1 = d1_a[1];
+ } else {
+ *zl = z1L/1000;
+ wcd938x_wcd_mbhc_qfuse_cal(component, zl, 0);
+ }
+ dev_dbg(component->dev, "%s: impedance on HPH_L = %d(ohms)\n",
+ __func__, *zl);
+
+ /* Start of right impedance ramp and calculation */
+ wcd938x_mbhc_zdet_ramp(component, zdet_param_ptr, NULL, &z1R, d1);
+ if (WCD938X_MBHC_IS_SECOND_RAMP_REQUIRED(z1R)) {
+ if (((z1R > WCD938X_ZDET_VAL_1200) &&
+ (zdet_param_ptr->noff == 0x6)) ||
+ ((*zl) != WCD938X_ZDET_FLOATING_IMPEDANCE))
+ goto right_ch_impedance;
+ /* Second ramp for right ch */
+ if (z1R < WCD938X_ZDET_VAL_32) {
+ zdet_param_ptr = &zdet_param[0];
+ d1 = d1_a[0];
+ } else if ((z1R > WCD938X_ZDET_VAL_400) &&
+ (z1R <= WCD938X_ZDET_VAL_1200)) {
+ zdet_param_ptr = &zdet_param[2];
+ d1 = d1_a[2];
+ } else if (z1R > WCD938X_ZDET_VAL_1200) {
+ zdet_param_ptr = &zdet_param[3];
+ d1 = d1_a[3];
+ }
+ wcd938x_mbhc_zdet_ramp(component, zdet_param_ptr, NULL, &z1R, d1);
+ }
+right_ch_impedance:
+ if ((z1R == WCD938X_ZDET_FLOATING_IMPEDANCE) ||
+ (z1R > WCD938X_ZDET_VAL_100K)) {
+ *zr = WCD938X_ZDET_FLOATING_IMPEDANCE;
+ } else {
+ *zr = z1R/1000;
+ wcd938x_wcd_mbhc_qfuse_cal(component, zr, 1);
+ }
+ dev_dbg(component->dev, "%s: impedance on HPH_R = %d(ohms)\n",
+ __func__, *zr);
+
+ /* Mono/stereo detection */
+ if ((*zl == WCD938X_ZDET_FLOATING_IMPEDANCE) &&
+ (*zr == WCD938X_ZDET_FLOATING_IMPEDANCE)) {
+ dev_dbg(component->dev,
+ "%s: plug type is invalid or extension cable\n",
+ __func__);
+ goto zdet_complete;
+ }
+ if ((*zl == WCD938X_ZDET_FLOATING_IMPEDANCE) ||
+ (*zr == WCD938X_ZDET_FLOATING_IMPEDANCE) ||
+ ((*zl < WCD_MONO_HS_MIN_THR) && (*zr > WCD_MONO_HS_MIN_THR)) ||
+ ((*zl > WCD_MONO_HS_MIN_THR) && (*zr < WCD_MONO_HS_MIN_THR))) {
+ dev_dbg(component->dev,
+ "%s: Mono plug type with one ch floating or shorted to GND\n",
+ __func__);
+ wcd_mbhc_set_hph_type(wcd938x->wcd_mbhc, WCD_MBHC_HPH_MONO);
+ goto zdet_complete;
+ }
+ snd_soc_component_write_field(component, WCD938X_HPH_R_ATEST,
+ WCD938X_HPHPA_GND_OVR_MASK, 1);
+ snd_soc_component_write_field(component, WCD938X_HPH_PA_CTL2,
+ WCD938X_HPHPA_GND_R_MASK, 1);
+ if (*zl < (WCD938X_ZDET_VAL_32/1000))
+ wcd938x_mbhc_zdet_ramp(component, &zdet_param[0], &z1Ls, NULL, d1);
+ else
+ wcd938x_mbhc_zdet_ramp(component, &zdet_param[1], &z1Ls, NULL, d1);
+ snd_soc_component_write_field(component, WCD938X_HPH_PA_CTL2,
+ WCD938X_HPHPA_GND_R_MASK, 0);
+ snd_soc_component_write_field(component, WCD938X_HPH_R_ATEST,
+ WCD938X_HPHPA_GND_OVR_MASK, 0);
+ z1Ls /= 1000;
+ wcd938x_wcd_mbhc_qfuse_cal(component, &z1Ls, 0);
+ /* Parallel of left Z and 9 ohm pull down resistor */
+ zMono = ((*zl) * 9) / ((*zl) + 9);
+ z_diff1 = (z1Ls > zMono) ? (z1Ls - zMono) : (zMono - z1Ls);
+ z_diff2 = ((*zl) > z1Ls) ? ((*zl) - z1Ls) : (z1Ls - (*zl));
+ if ((z_diff1 * (*zl + z1Ls)) > (z_diff2 * (z1Ls + zMono))) {
+ dev_dbg(component->dev, "%s: stereo plug type detected\n",
+ __func__);
+ wcd_mbhc_set_hph_type(wcd938x->wcd_mbhc, WCD_MBHC_HPH_STEREO);
+ } else {
+ dev_dbg(component->dev, "%s: MONO plug type detected\n",
+ __func__);
+ wcd_mbhc_set_hph_type(wcd938x->wcd_mbhc, WCD_MBHC_HPH_MONO);
+ }
+
+ /* Enable surge protection again after impedance detection */
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_HPH_SURGE_HPHLR_SURGE_EN, 0xC0, 0xC0);
+zdet_complete:
+ snd_soc_component_write(component, WCD938X_ANA_MBHC_BTN5, reg0);
+ snd_soc_component_write(component, WCD938X_ANA_MBHC_BTN6, reg1);
+ snd_soc_component_write(component, WCD938X_ANA_MBHC_BTN7, reg2);
+ /* Turn on 100k pull down on HPHL */
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_ANA_MBHC_MECH, 0x01, 0x01);
+
+ /* For NO-jack, re-enable L_DET_EN after Z-det measurements */
+ if (wcd938x->mbhc_cfg.hphl_swh)
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_ANA_MBHC_MECH, 0x80, 0x80);
+
+ snd_soc_component_write(component, WCD938X_MBHC_NEW_ZDET_ANA_CTL, reg4);
+ snd_soc_component_write(component, WCD938X_MBHC_CTL_CLK, reg3);
+ if (is_fsm_disable)
+ regmap_update_bits(wcd938x->regmap,
+ WCD938X_ANA_MBHC_ELECT, 0x80, 0x80);
+}
+
+static void wcd938x_mbhc_gnd_det_ctrl(struct snd_soc_component *component,
+ bool enable)
+{
+ if (enable) {
+ snd_soc_component_write_field(component, WCD938X_ANA_MBHC_MECH,
+ WCD938X_MBHC_HSG_PULLUP_COMP_EN, 1);
+ snd_soc_component_write_field(component, WCD938X_ANA_MBHC_MECH,
+ WCD938X_MBHC_GND_DET_EN_MASK, 1);
+ } else {
+ snd_soc_component_write_field(component, WCD938X_ANA_MBHC_MECH,
+ WCD938X_MBHC_GND_DET_EN_MASK, 0);
+ snd_soc_component_write_field(component, WCD938X_ANA_MBHC_MECH,
+ WCD938X_MBHC_HSG_PULLUP_COMP_EN, 0);
+ }
+}
+
+static void wcd938x_mbhc_hph_pull_down_ctrl(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_write_field(component, WCD938X_HPH_PA_CTL2,
+ WCD938X_HPHPA_GND_R_MASK, enable);
+ snd_soc_component_write_field(component, WCD938X_HPH_PA_CTL2,
+ WCD938X_HPHPA_GND_L_MASK, enable);
+}
+
+static void wcd938x_mbhc_moisture_config(struct snd_soc_component *component)
+{
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+
+ if (wcd938x->mbhc_cfg.moist_rref == R_OFF) {
+ snd_soc_component_write_field(component, WCD938X_MBHC_NEW_CTL_2,
+ WCD938X_M_RTH_CTL_MASK, R_OFF);
+ return;
+ }
+
+ /* Do not enable moisture detection if jack type is NC */
+ if (!wcd938x->mbhc_cfg.hphl_swh) {
+ dev_dbg(component->dev, "%s: disable moisture detection for NC\n",
+ __func__);
+ snd_soc_component_write_field(component, WCD938X_MBHC_NEW_CTL_2,
+ WCD938X_M_RTH_CTL_MASK, R_OFF);
+ return;
+ }
+
+ snd_soc_component_write_field(component, WCD938X_MBHC_NEW_CTL_2,
+ WCD938X_M_RTH_CTL_MASK, wcd938x->mbhc_cfg.moist_rref);
+}
+
+static void wcd938x_mbhc_moisture_detect_en(struct snd_soc_component *component, bool enable)
+{
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+
+ if (enable)
+ snd_soc_component_write_field(component, WCD938X_MBHC_NEW_CTL_2,
+ WCD938X_M_RTH_CTL_MASK, wcd938x->mbhc_cfg.moist_rref);
+ else
+ snd_soc_component_write_field(component, WCD938X_MBHC_NEW_CTL_2,
+ WCD938X_M_RTH_CTL_MASK, R_OFF);
+}
+
+static bool wcd938x_mbhc_get_moisture_status(struct snd_soc_component *component)
+{
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+ bool ret = false;
+
+ if (wcd938x->mbhc_cfg.moist_rref == R_OFF) {
+ snd_soc_component_write_field(component, WCD938X_MBHC_NEW_CTL_2,
+ WCD938X_M_RTH_CTL_MASK, R_OFF);
+ goto done;
+ }
+
+ /* Do not enable moisture detection if jack type is NC */
+ if (!wcd938x->mbhc_cfg.hphl_swh) {
+ dev_dbg(component->dev, "%s: disable moisture detection for NC\n",
+ __func__);
+ snd_soc_component_write_field(component, WCD938X_MBHC_NEW_CTL_2,
+ WCD938X_M_RTH_CTL_MASK, R_OFF);
+ goto done;
+ }
+
+ /*
+ * If moisture_en is already enabled, then skip to plug type
+ * detection.
+ */
+ if (snd_soc_component_read_field(component, WCD938X_MBHC_NEW_CTL_2, WCD938X_M_RTH_CTL_MASK))
+ goto done;
+
+ wcd938x_mbhc_moisture_detect_en(component, true);
+ /* Read moisture comparator status */
+ ret = ((snd_soc_component_read(component, WCD938X_MBHC_NEW_FSM_STATUS)
+ & 0x20) ? 0 : 1);
+
+done:
+ return ret;
+
+}
+
+static void wcd938x_mbhc_moisture_polling_ctrl(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_write_field(component,
+ WCD938X_MBHC_NEW_INT_MOISTURE_DET_POLLING_CTRL,
+ WCD938X_MOISTURE_EN_POLLING_MASK, enable);
+}
+
+static const struct wcd_mbhc_cb mbhc_cb = {
+ .clk_setup = wcd938x_mbhc_clk_setup,
+ .mbhc_bias = wcd938x_mbhc_mbhc_bias_control,
+ .set_btn_thr = wcd938x_mbhc_program_btn_thr,
+ .micbias_enable_status = wcd938x_mbhc_micb_en_status,
+ .hph_pull_up_control_v2 = wcd938x_mbhc_hph_l_pull_up_control,
+ .mbhc_micbias_control = wcd938x_mbhc_request_micbias,
+ .mbhc_micb_ramp_control = wcd938x_mbhc_micb_ramp_control,
+ .mbhc_micb_ctrl_thr_mic = wcd938x_mbhc_micb_ctrl_threshold_mic,
+ .compute_impedance = wcd938x_wcd_mbhc_calc_impedance,
+ .mbhc_gnd_det_ctrl = wcd938x_mbhc_gnd_det_ctrl,
+ .hph_pull_down_ctrl = wcd938x_mbhc_hph_pull_down_ctrl,
+ .mbhc_moisture_config = wcd938x_mbhc_moisture_config,
+ .mbhc_get_moisture_status = wcd938x_mbhc_get_moisture_status,
+ .mbhc_moisture_polling_ctrl = wcd938x_mbhc_moisture_polling_ctrl,
+ .mbhc_moisture_detect_en = wcd938x_mbhc_moisture_detect_en,
+};
+
+static int wcd938x_get_hph_type(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+
+ ucontrol->value.integer.value[0] = wcd_mbhc_get_hph_type(wcd938x->wcd_mbhc);
+
+ return 0;
+}
+
+static int wcd938x_hph_impedance_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ uint32_t zl, zr;
+ bool hphr;
+ struct soc_mixer_control *mc;
+ struct snd_soc_component *component =
+ snd_soc_kcontrol_component(kcontrol);
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+
+ mc = (struct soc_mixer_control *)(kcontrol->private_value);
+ hphr = mc->shift;
+ wcd_mbhc_get_impedance(wcd938x->wcd_mbhc, &zl, &zr);
+ dev_dbg(component->dev, "%s: zl=%u(ohms), zr=%u(ohms)\n", __func__, zl, zr);
+ ucontrol->value.integer.value[0] = hphr ? zr : zl;
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new hph_type_detect_controls[] = {
+ SOC_SINGLE_EXT("HPH Type", 0, 0, UINT_MAX, 0,
+ wcd938x_get_hph_type, NULL),
+};
+
+static const struct snd_kcontrol_new impedance_detect_controls[] = {
+ SOC_SINGLE_EXT("HPHL Impedance", 0, 0, UINT_MAX, 0,
+ wcd938x_hph_impedance_get, NULL),
+ SOC_SINGLE_EXT("HPHR Impedance", 0, 1, UINT_MAX, 0,
+ wcd938x_hph_impedance_get, NULL),
+};
+
+static int wcd938x_mbhc_init(struct snd_soc_component *component)
+{
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+ struct wcd_mbhc_intr *intr_ids = &wcd938x->intr_ids;
+
+ intr_ids->mbhc_sw_intr = regmap_irq_get_virq(wcd938x->irq_chip,
+ WCD938X_IRQ_MBHC_SW_DET);
+ intr_ids->mbhc_btn_press_intr = regmap_irq_get_virq(wcd938x->irq_chip,
+ WCD938X_IRQ_MBHC_BUTTON_PRESS_DET);
+ intr_ids->mbhc_btn_release_intr = regmap_irq_get_virq(wcd938x->irq_chip,
+ WCD938X_IRQ_MBHC_BUTTON_RELEASE_DET);
+ intr_ids->mbhc_hs_ins_intr = regmap_irq_get_virq(wcd938x->irq_chip,
+ WCD938X_IRQ_MBHC_ELECT_INS_REM_LEG_DET);
+ intr_ids->mbhc_hs_rem_intr = regmap_irq_get_virq(wcd938x->irq_chip,
+ WCD938X_IRQ_MBHC_ELECT_INS_REM_DET);
+ intr_ids->hph_left_ocp = regmap_irq_get_virq(wcd938x->irq_chip,
+ WCD938X_IRQ_HPHL_OCP_INT);
+ intr_ids->hph_right_ocp = regmap_irq_get_virq(wcd938x->irq_chip,
+ WCD938X_IRQ_HPHR_OCP_INT);
+
+ wcd938x->wcd_mbhc = wcd_mbhc_init(component, &mbhc_cb, intr_ids, wcd_mbhc_fields, true);
+
+ snd_soc_add_component_controls(component, impedance_detect_controls,
+ ARRAY_SIZE(impedance_detect_controls));
+ snd_soc_add_component_controls(component, hph_type_detect_controls,
+ ARRAY_SIZE(hph_type_detect_controls));
+
+ return 0;
+}
+/* END MBHC */
+
static const struct snd_kcontrol_new wcd938x_snd_controls[] = {
SOC_SINGLE_EXT("HPHL_COMP Switch", WCD938X_COMP_L, 0, 1, 0,
wcd938x_get_compander, wcd938x_set_compander),
@@ -3222,15 +3995,6 @@ static const struct snd_soc_dapm_route wcd938x_audio_map[] = {
{"EAR", NULL, "EAR PGA"},
};
-static int wcd938x_get_micb_vout_ctl_val(u32 micb_mv)
-{
- /* min micbias voltage is 1V and maximum is 2.85V */
- if (micb_mv < 1000 || micb_mv > 2850)
- return -EINVAL;
-
- return (micb_mv - 1000) / 50;
-}
-
static int wcd938x_set_micbias_data(struct wcd938x_priv *wcd938x)
{
int vout_ctl_1, vout_ctl_2, vout_ctl_3, vout_ctl_4;
@@ -3369,10 +4133,27 @@ static int wcd938x_soc_codec_probe(struct snd_soc_component *component)
default:
break;
}
+
+ ret = wcd938x_mbhc_init(component);
+ if (ret)
+ dev_err(component->dev, "mbhc initialization failed\n");
err:
return ret;
}
+static int wcd938x_codec_set_jack(struct snd_soc_component *comp,
+ struct snd_soc_jack *jack, void *data)
+{
+ struct wcd938x_priv *wcd = dev_get_drvdata(comp->dev);
+
+ if (!jack)
+ return wcd_mbhc_start(wcd->wcd_mbhc, &wcd->mbhc_cfg, jack);
+
+ wcd_mbhc_stop(wcd->wcd_mbhc);
+
+ return 0;
+}
+
static const struct snd_soc_component_driver soc_codec_dev_wcd938x = {
.name = "wcd938x_codec",
.probe = wcd938x_soc_codec_probe,
@@ -3382,6 +4163,7 @@ static const struct snd_soc_component_driver soc_codec_dev_wcd938x = {
.num_dapm_widgets = ARRAY_SIZE(wcd938x_dapm_widgets),
.dapm_routes = wcd938x_audio_map,
.num_dapm_routes = ARRAY_SIZE(wcd938x_audio_map),
+ .set_jack = wcd938x_codec_set_jack,
};
static void wcd938x_dt_parse_micbias_info(struct device *dev, struct wcd938x_priv *wcd)
@@ -3417,6 +4199,7 @@ static void wcd938x_dt_parse_micbias_info(struct device *dev, struct wcd938x_pri
static int wcd938x_populate_dt_data(struct wcd938x_priv *wcd938x, struct device *dev)
{
+ struct wcd_mbhc_config *cfg = &wcd938x->mbhc_cfg;
int ret;
wcd938x->reset_gpio = of_get_named_gpio(dev->of_node, "reset-gpios", 0);
@@ -3445,6 +4228,17 @@ static int wcd938x_populate_dt_data(struct wcd938x_priv *wcd938x, struct device
wcd938x_dt_parse_micbias_info(dev, wcd938x);
+ cfg->mbhc_micbias = MIC_BIAS_2;
+ cfg->anc_micbias = MIC_BIAS_2;
+ cfg->v_hs_max = WCD_MBHC_HS_V_MAX;
+ cfg->num_btn = WCD938X_MBHC_MAX_BUTTONS;
+ cfg->micb_mv = wcd938x->micb2_mv;
+ cfg->linein_th = 5000;
+ cfg->hs_thr = 1700;
+ cfg->hph_thr = 50;
+
+ wcd_dt_parse_mbhc_data(dev, cfg);
+
return 0;
}
@@ -3676,6 +4470,7 @@ static int wcd938x_probe(struct platform_device *pdev)
return -ENOMEM;
dev_set_drvdata(dev, wcd938x);
+ mutex_init(&wcd938x->micb_lock);
ret = wcd938x_populate_dt_data(wcd938x, dev);
if (ret) {
--
2.21.0
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