[PATCH v2 3/4] ASoC: codecs: wcd934x: add mbhc support
From: Srinivas Kandagatla
Date: Mon May 24 2021 - 07:07:29 EST
WCD934x 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 feature via common mbhc layer.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
---
include/linux/mfd/wcd934x/registers.h | 57 ++
sound/soc/codecs/Kconfig | 1 +
sound/soc/codecs/wcd934x.c | 884 +++++++++++++++++++++++++-
3 files changed, 927 insertions(+), 15 deletions(-)
diff --git a/include/linux/mfd/wcd934x/registers.h b/include/linux/mfd/wcd934x/registers.h
index bb8d2e276668..76a943c83c63 100644
--- a/include/linux/mfd/wcd934x/registers.h
+++ b/include/linux/mfd/wcd934x/registers.h
@@ -18,6 +18,8 @@
#define WCD934X_EFUSE_SENSE_STATE_DEF 0x10
#define WCD934X_EFUSE_SENSE_EN_MASK BIT(0)
#define WCD934X_EFUSE_SENSE_ENABLE BIT(0)
+#define WCD934X_CHIP_TIER_CTRL_EFUSE_VAL_OUT1 0x002a
+#define WCD934X_CHIP_TIER_CTRL_EFUSE_VAL_OUT2 0x002b
#define WCD934X_CHIP_TIER_CTRL_EFUSE_VAL_OUT14 0x0037
#define WCD934X_CHIP_TIER_CTRL_EFUSE_VAL_OUT15 0x0038
#define WCD934X_CHIP_TIER_CTRL_EFUSE_STATUS 0x0039
@@ -103,21 +105,58 @@
#define WCD934X_ANA_AMIC3 0x0610
#define WCD934X_ANA_AMIC4 0x0611
#define WCD934X_ANA_MBHC_MECH 0x0614
+#define WCD934X_MBHC_L_DET_EN_MASK BIT(7)
+#define WCD934X_MBHC_L_DET_EN BIT(7)
+#define WCD934X_MBHC_GND_DET_EN_MASK BIT(6)
+#define WCD934X_MBHC_MECH_DETECT_TYPE_MASK BIT(5)
+#define WCD934X_MBHC_MECH_DETECT_TYPE_INS 1
+#define WCD934X_MBHC_HPHL_PLUG_TYPE_MASK BIT(4)
+#define WCD934X_MBHC_HPHL_PLUG_TYPE_NO 1
+#define WCD934X_MBHC_GND_PLUG_TYPE_MASK BIT(3)
+#define WCD934X_MBHC_GND_PLUG_TYPE_NO 1
+#define WCD934X_MBHC_HSL_PULLUP_COMP_EN BIT(2)
+#define WCD934X_MBHC_HSG_PULLUP_COMP_EN BIT(1)
+#define WCD934X_MBHC_HPHL_100K_TO_GND_EN BIT(0)
#define WCD934X_ANA_MBHC_ELECT 0x0615
+#define WCD934X_ANA_MBHC_BIAS_EN_MASK BIT(0)
+#define WCD934X_ANA_MBHC_BIAS_EN BIT(0)
#define WCD934X_ANA_MBHC_ZDET 0x0616
#define WCD934X_ANA_MBHC_RESULT_1 0x0617
#define WCD934X_ANA_MBHC_RESULT_2 0x0618
#define WCD934X_ANA_MBHC_RESULT_3 0x0619
+#define WCD934X_ANA_MBHC_BTN0 0x061a
+#define WCD934X_VTH_MASK GENMASK(7, 2)
+#define WCD934X_ANA_MBHC_BTN1 0x061b
+#define WCD934X_ANA_MBHC_BTN2 0x061c
+#define WCD934X_ANA_MBHC_BTN3 0x061d
+#define WCD934X_ANA_MBHC_BTN4 0x061e
+#define WCD934X_ANA_MBHC_BTN5 0x061f
+#define WCD934X_ANA_MBHC_BTN6 0x0620
+#define WCD934X_ANA_MBHC_BTN7 0x0621
+#define WCD934X_MBHC_BTN_VTH_MASK GENMASK(7, 2)
#define WCD934X_ANA_MICB1 0x0622
#define WCD934X_MICB_VAL_MASK GENMASK(5, 0)
#define WCD934X_ANA_MICB_EN_MASK GENMASK(7, 6)
+#define WCD934X_MICB_DISABLE 0
+#define WCD934X_MICB_ENABLE 1
+#define WCD934X_MICB_PULL_UP 2
+#define WCD934X_MICB_PULL_DOWN 3
#define WCD934X_ANA_MICB_PULL_UP 0x80
#define WCD934X_ANA_MICB_ENABLE 0x40
#define WCD934X_ANA_MICB_DISABLE 0x0
#define WCD934X_ANA_MICB2 0x0623
+#define WCD934X_ANA_MICB2_ENABLE BIT(6)
+#define WCD934X_ANA_MICB2_ENABLE_MASK GENMASK(7, 6)
+#define WCD934X_ANA_MICB2_VOUT_MASK GENMASK(5, 0)
+#define WCD934X_ANA_MICB2_RAMP 0x0624
+#define WCD934X_RAMP_EN_MASK BIT(7)
+#define WCD934X_RAMP_SHIFT_CTRL_MASK GENMASK(4, 2)
#define WCD934X_ANA_MICB3 0x0625
#define WCD934X_ANA_MICB4 0x0626
#define WCD934X_BIAS_VBG_FINE_ADJ 0x0629
+#define WCD934X_MBHC_CTL_CLK 0x0656
+#define WCD934X_MBHC_CTL_BCS 0x065a
+#define WCD934X_MBHC_STATUS_SPARE_1 0x065b
#define WCD934X_MICB1_TEST_CTL_1 0x066b
#define WCD934X_MICB1_TEST_CTL_2 0x066c
#define WCD934X_MICB2_TEST_CTL_1 0x066e
@@ -141,7 +180,11 @@
#define WCD934X_HPH_CNP_WG_CTL 0x06cc
#define WCD934X_HPH_GM3_BOOST_EN_MASK BIT(7)
#define WCD934X_HPH_GM3_BOOST_ENABLE BIT(7)
+#define WCD934X_HPH_CNP_WG_TIME 0x06cd
#define WCD934X_HPH_OCP_CTL 0x06ce
+#define WCD934X_HPH_PA_CTL2 0x06d2
+#define WCD934X_HPHPA_GND_R_MASK BIT(6)
+#define WCD934X_HPHPA_GND_L_MASK BIT(4)
#define WCD934X_HPH_L_EN 0x06d3
#define WCD934X_HPH_GAIN_SRC_SEL_MASK BIT(5)
#define WCD934X_HPH_GAIN_SRC_SEL_COMPANDER 0
@@ -152,6 +195,8 @@
#define WCD934X_HPH_OCP_DET_MASK BIT(0)
#define WCD934X_HPH_OCP_DET_ENABLE BIT(0)
#define WCD934X_HPH_OCP_DET_DISABLE 0
+#define WCD934X_HPH_R_ATEST 0x06d8
+#define WCD934X_HPHPA_GND_OVR_MASK BIT(1)
#define WCD934X_DIFF_LO_LO2_COMPANDER 0x06ea
#define WCD934X_DIFF_LO_LO1_COMPANDER 0x06eb
#define WCD934X_CLK_SYS_MCLK_PRG 0x0711
@@ -172,7 +217,19 @@
#define WCD934X_SIDO_NEW_VOUT_D_FREQ2 0x071e
#define WCD934X_SIDO_RIPPLE_FREQ_EN_MASK BIT(0)
#define WCD934X_SIDO_RIPPLE_FREQ_ENABLE BIT(0)
+#define WCD934X_MBHC_NEW_CTL_1 0x0720
+#define WCD934X_MBHC_CTL_RCO_EN_MASK BIT(7)
+#define WCD935X_MBHC_CTL_RCO_EN BIT(7)
#define WCD934X_MBHC_NEW_CTL_2 0x0721
+#define WCD934X_M_RTH_CTL_MASK GENMASK(3, 2)
+#define WCD934X_MBHC_NEW_PLUG_DETECT_CTL 0x0722
+#define WCD934X_HSDET_PULLUP_C_MASK GENMASK(7, 6)
+#define WCD934X_MBHC_NEW_ZDET_ANA_CTL 0x0723
+#define WCD934X_ZDET_RANGE_CTL_MASK GENMASK(3, 0)
+#define WCD934X_ZDET_MAXV_CTL_MASK GENMASK(6, 4)
+#define WCD934X_MBHC_NEW_ZDET_RAMP_CTL 0x0724
+#define WCD934X_MBHC_NEW_FSM_STATUS 0x0725
+#define WCD934X_MBHC_NEW_ADC_RESULT 0x0726
#define WCD934X_TX_NEW_AMIC_4_5_SEL 0x0727
#define WCD934X_HPH_NEW_INT_RDAC_HD2_CTL_L 0x0733
#define WCD934X_HPH_NEW_INT_RDAC_OVERRIDE_CTL 0x0735
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 448ba0980e09..7f48b9095b6b 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -1532,6 +1532,7 @@ config SND_SOC_WCD_MBHC
config SND_SOC_WCD934X
tristate "WCD9340/WCD9341 Codec"
depends on COMMON_CLK
+ select SND_SOC_WCD_MBHC
depends on MFD_WCD934X
help
The WCD9340/9341 is a audio codec IC Integrated in
diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index 046874ef490e..16fd1ab62609 100644
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -21,6 +21,7 @@
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include "wcd-clsh-v2.h"
+#include "wcd-mbhc-v2.h"
#define WCD934X_RATES_MASK (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000 |\
@@ -131,6 +132,24 @@
} \
}
+/* Z value defined in milliohm */
+#define WCD934X_ZDET_VAL_32 32000
+#define WCD934X_ZDET_VAL_400 400000
+#define WCD934X_ZDET_VAL_1200 1200000
+#define WCD934X_ZDET_VAL_100K 100000000
+/* Z floating defined in ohms */
+#define WCD934X_ZDET_FLOATING_IMPEDANCE 0x0FFFFFFE
+
+#define WCD934X_ZDET_NUM_MEASUREMENTS 900
+#define WCD934X_MBHC_GET_C1(c) ((c & 0xC000) >> 14)
+#define WCD934X_MBHC_GET_X1(x) (x & 0x3FFF)
+/* Z value compared in milliOhm */
+#define WCD934X_MBHC_IS_SECOND_RAMP_REQUIRED(z) ((z > 400000) || (z < 32000))
+#define WCD934X_MBHC_ZDET_CONST (86 * 16384)
+#define WCD934X_MBHC_MOISTURE_RREF R_24_KOHM
+#define WCD934X_MBHC_MAX_BUTTONS (8)
+#define WCD_MBHC_HS_V_MAX 1600
+
#define WCD934X_INTERPOLATOR_PATH(id) \
{"RX INT" #id "_1 MIX1 INP0", "RX0", "SLIM RX0"}, \
{"RX INT" #id "_1 MIX1 INP0", "RX1", "SLIM RX1"}, \
@@ -287,12 +306,7 @@
{"AIF3_CAP Mixer", "SLIM TX" #id, "SLIM TX" #id }, \
{"SLIM TX" #id, NULL, "CDC_IF TX" #id " MUX"}
-enum {
- MIC_BIAS_1 = 1,
- MIC_BIAS_2,
- MIC_BIAS_3,
- MIC_BIAS_4
-};
+#define WCD934X_MAX_MICBIAS MIC_BIAS_4
enum {
SIDO_SOURCE_INTERNAL,
@@ -486,6 +500,15 @@ static struct interp_sample_rate sr_val_tbl[] = {
{352800, 0xC},
};
+struct wcd934x_mbhc_zdet_param {
+ u16 ldo_ctl;
+ u16 noff;
+ u16 nshift;
+ u16 btn5;
+ u16 btn6;
+ u16 btn7;
+};
+
struct wcd_slim_codec_dai_data {
struct list_head slim_ch_list;
struct slim_stream_config sconfig;
@@ -541,6 +564,18 @@ struct wcd934x_codec {
int comp_enabled[COMPANDER_MAX];
int sysclk_users;
struct mutex sysclk_mutex;
+ /* mbhc module */
+ struct wcd_mbhc *mbhc;
+ struct wcd_mbhc_config mbhc_cfg;
+ struct wcd_mbhc_intr intr_ids;
+ bool mbhc_started;
+ struct mutex micb_lock;
+ u32 micb_ref[WCD934X_MAX_MICBIAS];
+ u32 pullup_ref[WCD934X_MAX_MICBIAS];
+ u32 micb1_mv;
+ u32 micb2_mv;
+ u32 micb3_mv;
+ u32 micb4_mv;
};
#define to_wcd934x_codec(_hw) container_of(_hw, struct wcd934x_codec, hw)
@@ -1183,6 +1218,57 @@ static const struct soc_enum cdc_if_tx13_mux_enum =
SOC_ENUM_SINGLE(WCD934X_DATA_HUB_SB_TX13_INP_CFG, 0,
ARRAY_SIZE(cdc_if_tx13_mux_text), cdc_if_tx13_mux_text);
+static struct wcd_mbhc_field wcd_mbhc_fields[WCD_MBHC_REG_FUNC_MAX] = {
+ WCD_MBHC_FIELD(WCD_MBHC_L_DET_EN, WCD934X_ANA_MBHC_MECH, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_GND_DET_EN, WCD934X_ANA_MBHC_MECH, 0x40),
+ WCD_MBHC_FIELD(WCD_MBHC_MECH_DETECTION_TYPE, WCD934X_ANA_MBHC_MECH, 0x20),
+ WCD_MBHC_FIELD(WCD_MBHC_MIC_CLAMP_CTL, WCD934X_MBHC_NEW_PLUG_DETECT_CTL, 0x30),
+ WCD_MBHC_FIELD(WCD_MBHC_ELECT_DETECTION_TYPE, WCD934X_ANA_MBHC_ELECT, 0x08),
+ WCD_MBHC_FIELD(WCD_MBHC_HS_L_DET_PULL_UP_CTRL, WCD934X_MBHC_NEW_PLUG_DETECT_CTL, 0xC0),
+ WCD_MBHC_FIELD(WCD_MBHC_HS_L_DET_PULL_UP_COMP_CTRL, WCD934X_ANA_MBHC_MECH, 0x04),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_PLUG_TYPE, WCD934X_ANA_MBHC_MECH, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_GND_PLUG_TYPE, WCD934X_ANA_MBHC_MECH, 0x08),
+ WCD_MBHC_FIELD(WCD_MBHC_SW_HPH_LP_100K_TO_GND, WCD934X_ANA_MBHC_MECH, 0x01),
+ WCD_MBHC_FIELD(WCD_MBHC_ELECT_SCHMT_ISRC, WCD934X_ANA_MBHC_ELECT, 0x06),
+ WCD_MBHC_FIELD(WCD_MBHC_FSM_EN, WCD934X_ANA_MBHC_ELECT, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_INSREM_DBNC, WCD934X_MBHC_NEW_PLUG_DETECT_CTL, 0x0F),
+ WCD_MBHC_FIELD(WCD_MBHC_BTN_DBNC, WCD934X_MBHC_NEW_CTL_1, 0x03),
+ WCD_MBHC_FIELD(WCD_MBHC_HS_VREF, WCD934X_MBHC_NEW_CTL_2, 0x03),
+ WCD_MBHC_FIELD(WCD_MBHC_HS_COMP_RESULT, WCD934X_ANA_MBHC_RESULT_3, 0x08),
+ WCD_MBHC_FIELD(WCD_MBHC_IN2P_CLAMP_STATE, WCD934X_ANA_MBHC_RESULT_3, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_MIC_SCHMT_RESULT, WCD934X_ANA_MBHC_RESULT_3, 0x20),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_SCHMT_RESULT, WCD934X_ANA_MBHC_RESULT_3, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHR_SCHMT_RESULT, WCD934X_ANA_MBHC_RESULT_3, 0x40),
+ WCD_MBHC_FIELD(WCD_MBHC_OCP_FSM_EN, WCD934X_HPH_OCP_CTL, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_BTN_RESULT, WCD934X_ANA_MBHC_RESULT_3, 0x07),
+ WCD_MBHC_FIELD(WCD_MBHC_BTN_ISRC_CTL, WCD934X_ANA_MBHC_ELECT, 0x70),
+ WCD_MBHC_FIELD(WCD_MBHC_ELECT_RESULT, WCD934X_ANA_MBHC_RESULT_3, 0xFF),
+ WCD_MBHC_FIELD(WCD_MBHC_MICB_CTRL, WCD934X_ANA_MICB2, 0xC0),
+ WCD_MBHC_FIELD(WCD_MBHC_HPH_CNP_WG_TIME, WCD934X_HPH_CNP_WG_TIME, 0xFF),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHR_PA_EN, WCD934X_ANA_HPH, 0x40),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_PA_EN, WCD934X_ANA_HPH, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_HPH_PA_EN, WCD934X_ANA_HPH, 0xC0),
+ WCD_MBHC_FIELD(WCD_MBHC_SWCH_LEVEL_REMOVE, WCD934X_ANA_MBHC_RESULT_3, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_ANC_DET_EN, WCD934X_MBHC_CTL_BCS, 0x02),
+ WCD_MBHC_FIELD(WCD_MBHC_FSM_STATUS, WCD934X_MBHC_STATUS_SPARE_1, 0x01),
+ WCD_MBHC_FIELD(WCD_MBHC_MUX_CTL, WCD934X_MBHC_NEW_CTL_2, 0x70),
+ WCD_MBHC_FIELD(WCD_MBHC_MOISTURE_STATUS, WCD934X_MBHC_NEW_FSM_STATUS, 0x20),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHR_GND, WCD934X_HPH_PA_CTL2, 0x40),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_GND, WCD934X_HPH_PA_CTL2, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_OCP_DET_EN, WCD934X_HPH_L_TEST, 0x01),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHR_OCP_DET_EN, WCD934X_HPH_R_TEST, 0x01),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHL_OCP_STATUS, WCD934X_INTR_PIN1_STATUS0, 0x04),
+ WCD_MBHC_FIELD(WCD_MBHC_HPHR_OCP_STATUS, WCD934X_INTR_PIN1_STATUS0, 0x08),
+ WCD_MBHC_FIELD(WCD_MBHC_ADC_EN, WCD934X_MBHC_NEW_CTL_1, 0x08),
+ WCD_MBHC_FIELD(WCD_MBHC_ADC_COMPLETE, WCD934X_MBHC_NEW_FSM_STATUS, 0x40),
+ WCD_MBHC_FIELD(WCD_MBHC_ADC_TIMEOUT, WCD934X_MBHC_NEW_FSM_STATUS, 0x80),
+ WCD_MBHC_FIELD(WCD_MBHC_ADC_RESULT, WCD934X_MBHC_NEW_ADC_RESULT, 0xFF),
+ WCD_MBHC_FIELD(WCD_MBHC_MICB2_VOUT, WCD934X_ANA_MICB2, 0x3F),
+ WCD_MBHC_FIELD(WCD_MBHC_ADC_MODE, WCD934X_MBHC_NEW_CTL_1, 0x10),
+ WCD_MBHC_FIELD(WCD_MBHC_DETECTION_DONE, WCD934X_MBHC_NEW_CTL_1, 0x04),
+ WCD_MBHC_FIELD(WCD_MBHC_ELECT_ISRC_EN, WCD934X_ANA_MBHC_ZDET, 0x02),
+};
+
static int wcd934x_set_sido_input_src(struct wcd934x_codec *wcd, int sido_src)
{
if (sido_src == wcd->sido_input_src)
@@ -2127,7 +2213,8 @@ static struct clk *wcd934x_register_mclk_output(struct wcd934x_codec *wcd)
return NULL;
}
-static int wcd934x_get_micbias_val(struct device *dev, const char *micbias)
+static int wcd934x_get_micbias_val(struct device *dev, const char *micbias,
+ u32 *micb_mv)
{
int mv;
@@ -2145,6 +2232,8 @@ static int wcd934x_get_micbias_val(struct device *dev, const char *micbias)
mv = WCD934X_DEF_MICBIAS_MV;
}
+ *micb_mv = mv;
+
return (mv - 1000) / 50;
}
@@ -2155,13 +2244,17 @@ static int wcd934x_init_dmic(struct snd_soc_component *comp)
u32 def_dmic_rate, dmic_clk_drv;
vout_ctl_1 = wcd934x_get_micbias_val(comp->dev,
- "qcom,micbias1-microvolt");
+ "qcom,micbias1-microvolt",
+ &wcd->micb1_mv);
vout_ctl_2 = wcd934x_get_micbias_val(comp->dev,
- "qcom,micbias2-microvolt");
+ "qcom,micbias2-microvolt",
+ &wcd->micb2_mv);
vout_ctl_3 = wcd934x_get_micbias_val(comp->dev,
- "qcom,micbias3-microvolt");
+ "qcom,micbias3-microvolt",
+ &wcd->micb3_mv);
vout_ctl_4 = wcd934x_get_micbias_val(comp->dev,
- "qcom,micbias4-microvolt");
+ "qcom,micbias4-microvolt",
+ &wcd->micb4_mv);
snd_soc_component_update_bits(comp, WCD934X_ANA_MICB1,
WCD934X_MICB_VAL_MASK, vout_ctl_1);
@@ -2287,6 +2380,695 @@ static irqreturn_t wcd934x_slim_irq_handler(int irq, void *data)
return ret;
}
+static void wcd934x_mbhc_clk_setup(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_write_field(component, WCD934X_MBHC_NEW_CTL_1,
+ WCD934X_MBHC_CTL_RCO_EN_MASK, enable);
+}
+
+static void wcd934x_mbhc_mbhc_bias_control(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_write_field(component, WCD934X_ANA_MBHC_ELECT,
+ WCD934X_ANA_MBHC_BIAS_EN, enable);
+}
+
+static void wcd934x_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, WCD934X_ANA_MBHC_BTN0 + i,
+ WCD934X_MBHC_BTN_VTH_MASK, vth);
+ }
+}
+
+static bool wcd934x_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, WCD934X_ANA_MICB2,
+ WCD934X_ANA_MICB2_ENABLE_MASK);
+ if (val == WCD934X_MICB_ENABLE)
+ return true;
+ }
+ return false;
+}
+
+static void wcd934x_mbhc_hph_l_pull_up_control(struct snd_soc_component *component,
+ enum mbhc_hs_pullup_iref pull_up_cur)
+{
+ /* Default pull up current to 2uA */
+ if (pull_up_cur < I_OFF || pull_up_cur > I_3P0_UA ||
+ pull_up_cur == I_DEFAULT)
+ pull_up_cur = I_2P0_UA;
+
+
+ snd_soc_component_write_field(component, WCD934X_MBHC_NEW_PLUG_DETECT_CTL,
+ WCD934X_HSDET_PULLUP_C_MASK, pull_up_cur);
+}
+
+static int wcd934x_micbias_control(struct snd_soc_component *component,
+ int micb_num, int req, bool is_dapm)
+{
+ struct wcd934x_codec *wcd934x = snd_soc_component_get_drvdata(component);
+ int micb_index = micb_num - 1;
+ u16 micb_reg;
+
+ switch (micb_num) {
+ case MIC_BIAS_1:
+ micb_reg = WCD934X_ANA_MICB1;
+ break;
+ case MIC_BIAS_2:
+ micb_reg = WCD934X_ANA_MICB2;
+ break;
+ case MIC_BIAS_3:
+ micb_reg = WCD934X_ANA_MICB3;
+ break;
+ case MIC_BIAS_4:
+ micb_reg = WCD934X_ANA_MICB4;
+ break;
+ default:
+ dev_err(component->dev, "%s: Invalid micbias number: %d\n",
+ __func__, micb_num);
+ return -EINVAL;
+ };
+ mutex_lock(&wcd934x->micb_lock);
+
+ switch (req) {
+ case MICB_PULLUP_ENABLE:
+ wcd934x->pullup_ref[micb_index]++;
+ if ((wcd934x->pullup_ref[micb_index] == 1) &&
+ (wcd934x->micb_ref[micb_index] == 0))
+ snd_soc_component_write_field(component, micb_reg,
+ WCD934X_ANA_MICB_EN_MASK,
+ WCD934X_MICB_PULL_UP);
+ break;
+ case MICB_PULLUP_DISABLE:
+ if (wcd934x->pullup_ref[micb_index] > 0)
+ wcd934x->pullup_ref[micb_index]--;
+
+ if ((wcd934x->pullup_ref[micb_index] == 0) &&
+ (wcd934x->micb_ref[micb_index] == 0))
+ snd_soc_component_write_field(component, micb_reg,
+ WCD934X_ANA_MICB_EN_MASK, 0);
+ break;
+ case MICB_ENABLE:
+ wcd934x->micb_ref[micb_index]++;
+ if (wcd934x->micb_ref[micb_index] == 1) {
+ snd_soc_component_write_field(component, micb_reg,
+ WCD934X_ANA_MICB_EN_MASK,
+ WCD934X_MICB_ENABLE);
+ if (micb_num == MIC_BIAS_2)
+ wcd_mbhc_event_notify(wcd934x->mbhc,
+ WCD_EVENT_POST_MICBIAS_2_ON);
+ }
+
+ if (micb_num == MIC_BIAS_2 && is_dapm)
+ wcd_mbhc_event_notify(wcd934x->mbhc,
+ WCD_EVENT_POST_DAPM_MICBIAS_2_ON);
+ break;
+ case MICB_DISABLE:
+ if (wcd934x->micb_ref[micb_index] > 0)
+ wcd934x->micb_ref[micb_index]--;
+
+ if ((wcd934x->micb_ref[micb_index] == 0) &&
+ (wcd934x->pullup_ref[micb_index] > 0))
+ snd_soc_component_write_field(component, micb_reg,
+ WCD934X_ANA_MICB_EN_MASK,
+ WCD934X_MICB_PULL_UP);
+ else if ((wcd934x->micb_ref[micb_index] == 0) &&
+ (wcd934x->pullup_ref[micb_index] == 0)) {
+ if (micb_num == MIC_BIAS_2)
+ wcd_mbhc_event_notify(wcd934x->mbhc,
+ WCD_EVENT_PRE_MICBIAS_2_OFF);
+
+ snd_soc_component_write_field(component, micb_reg,
+ WCD934X_ANA_MICB_EN_MASK, 0);
+ if (micb_num == MIC_BIAS_2)
+ wcd_mbhc_event_notify(wcd934x->mbhc,
+ WCD_EVENT_POST_MICBIAS_2_OFF);
+ }
+ if (is_dapm && micb_num == MIC_BIAS_2)
+ wcd_mbhc_event_notify(wcd934x->mbhc,
+ WCD_EVENT_POST_DAPM_MICBIAS_2_OFF);
+ break;
+ };
+
+ mutex_unlock(&wcd934x->micb_lock);
+
+ return 0;
+}
+
+static int wcd934x_mbhc_request_micbias(struct snd_soc_component *component,
+ int micb_num, int req)
+{
+ struct wcd934x_codec *wcd = dev_get_drvdata(component->dev);
+ int ret;
+
+ if (req == MICB_ENABLE)
+ __wcd934x_cdc_mclk_enable(wcd, true);
+
+ ret = wcd934x_micbias_control(component, micb_num, req, false);
+
+ if (req == MICB_DISABLE)
+ __wcd934x_cdc_mclk_enable(wcd, false);
+
+ return ret;
+}
+
+static void wcd934x_mbhc_micb_ramp_control(struct snd_soc_component *component,
+ bool enable)
+{
+ if (enable) {
+ snd_soc_component_write_field(component, WCD934X_ANA_MICB2_RAMP,
+ WCD934X_RAMP_SHIFT_CTRL_MASK, 0x3);
+ snd_soc_component_write_field(component, WCD934X_ANA_MICB2_RAMP,
+ WCD934X_RAMP_EN_MASK, 1);
+ } else {
+ snd_soc_component_write_field(component, WCD934X_ANA_MICB2_RAMP,
+ WCD934X_RAMP_EN_MASK, 0);
+ snd_soc_component_write_field(component, WCD934X_ANA_MICB2_RAMP,
+ WCD934X_RAMP_SHIFT_CTRL_MASK, 0);
+ }
+}
+
+static int wcd934x_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 wcd934x_mbhc_micb_adjust_voltage(struct snd_soc_component *component,
+ int req_volt, int micb_num)
+{
+ struct wcd934x_codec *wcd934x = 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 = WCD934X_ANA_MICB1;
+ break;
+ case MIC_BIAS_2:
+ micb_reg = WCD934X_ANA_MICB2;
+ break;
+ case MIC_BIAS_3:
+ micb_reg = WCD934X_ANA_MICB3;
+ break;
+ case MIC_BIAS_4:
+ micb_reg = WCD934X_ANA_MICB4;
+ break;
+ default:
+ return -EINVAL;
+ }
+ mutex_lock(&wcd934x->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,
+ WCD934X_ANA_MICB_EN_MASK);
+ cur_vout_ctl = snd_soc_component_read_field(component, micb_reg,
+ WCD934X_MICB_VAL_MASK);
+
+ req_vout_ctl = wcd934x_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 == WCD934X_MICB_ENABLE)
+ snd_soc_component_write_field(component, micb_reg,
+ WCD934X_ANA_MICB_EN_MASK,
+ WCD934X_MICB_PULL_UP);
+
+ snd_soc_component_write_field(component, micb_reg,
+ WCD934X_MICB_VAL_MASK,
+ req_vout_ctl);
+
+ if (micb_en == WCD934X_MICB_ENABLE) {
+ snd_soc_component_write_field(component, micb_reg,
+ WCD934X_ANA_MICB_EN_MASK,
+ WCD934X_MICB_ENABLE);
+ /*
+ * Add 2ms delay as per HW requirement after enabling
+ * micbias
+ */
+ usleep_range(2000, 2100);
+ }
+exit:
+ mutex_unlock(&wcd934x->micb_lock);
+ return ret;
+}
+
+static int wcd934x_mbhc_micb_ctrl_threshold_mic(struct snd_soc_component *component,
+ int micb_num, bool req_en)
+{
+ struct wcd934x_codec *wcd934x = 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 (wcd934x->micb2_mv >= WCD_MBHC_THR_HS_MICB_MV)
+ return 0;
+
+ micb_mv = req_en ? WCD_MBHC_THR_HS_MICB_MV : wcd934x->micb2_mv;
+
+ rc = wcd934x_mbhc_micb_adjust_voltage(component, micb_mv, MIC_BIAS_2);
+
+ return rc;
+}
+
+static inline void wcd934x_mbhc_get_result_params(struct wcd934x_codec *wcd934x,
+ 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(wcd934x->regmap, WCD934X_ANA_MBHC_ZDET, 0x20, 0x20);
+ for (i = 0; i < WCD934X_ZDET_NUM_MEASUREMENTS; i++) {
+ regmap_read(wcd934x->regmap, WCD934X_ANA_MBHC_RESULT_2, &val);
+ if (val & 0x80)
+ break;
+ }
+ val = val << 0x8;
+ regmap_read(wcd934x->regmap, WCD934X_ANA_MBHC_RESULT_1, &val1);
+ val |= val1;
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_ZDET, 0x20, 0x00);
+ x1 = WCD934X_MBHC_GET_X1(val);
+ c1 = WCD934X_MBHC_GET_C1(val);
+ /* If ramp is not complete, give additional 5ms */
+ if ((c1 < 2) && x1)
+ usleep_range(5000, 5050);
+
+ if (!c1 || !x1) {
+ dev_err(wcd934x->dev, "%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 = (WCD934X_MBHC_ZDET_CONST * 1000) / denom;
+ else if (x1 < minCode_param[noff])
+ *zdet = WCD934X_ZDET_FLOATING_IMPEDANCE;
+
+ dev_info(wcd934x->dev, "%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(wcd934x->regmap, WCD934X_ANA_MBHC_RESULT_1, &val);
+ regmap_read(wcd934x->regmap, WCD934X_ANA_MBHC_RESULT_2, &val1);
+ val = val << 0x08;
+ val |= val1;
+ x1 = WCD934X_MBHC_GET_X1(val);
+ i++;
+ if (i == WCD934X_ZDET_NUM_MEASUREMENTS)
+ break;
+ }
+}
+
+static void wcd934x_mbhc_zdet_ramp(struct snd_soc_component *component,
+ struct wcd934x_mbhc_zdet_param *zdet_param,
+ int32_t *zl, int32_t *zr, s16 *d1_a)
+{
+ struct wcd934x_codec *wcd934x = dev_get_drvdata(component->dev);
+ int32_t zdet = 0;
+
+ snd_soc_component_write_field(component, WCD934X_MBHC_NEW_ZDET_ANA_CTL,
+ WCD934X_ZDET_MAXV_CTL_MASK, zdet_param->ldo_ctl);
+ snd_soc_component_update_bits(component, WCD934X_ANA_MBHC_BTN5,
+ WCD934X_VTH_MASK, zdet_param->btn5);
+ snd_soc_component_update_bits(component, WCD934X_ANA_MBHC_BTN6,
+ WCD934X_VTH_MASK, zdet_param->btn6);
+ snd_soc_component_update_bits(component, WCD934X_ANA_MBHC_BTN7,
+ WCD934X_VTH_MASK, zdet_param->btn7);
+ snd_soc_component_write_field(component, WCD934X_MBHC_NEW_ZDET_ANA_CTL,
+ WCD934X_ZDET_RANGE_CTL_MASK, zdet_param->noff);
+ snd_soc_component_update_bits(component, WCD934X_MBHC_NEW_ZDET_RAMP_CTL,
+ 0x0F, zdet_param->nshift);
+
+ if (!zl)
+ goto z_right;
+ /* Start impedance measurement for HPH_L */
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_ZDET, 0x80, 0x80);
+ wcd934x_mbhc_get_result_params(wcd934x, d1_a, zdet_param->noff, &zdet);
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_ZDET, 0x80, 0x00);
+
+ *zl = zdet;
+
+z_right:
+ if (!zr)
+ return;
+ /* Start impedance measurement for HPH_R */
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_ZDET, 0x40, 0x40);
+ wcd934x_mbhc_get_result_params(wcd934x, d1_a, zdet_param->noff, &zdet);
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_ZDET, 0x40, 0x00);
+
+ *zr = zdet;
+}
+
+static inline void wcd934x_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 < (WCD934X_ZDET_VAL_400/1000))
+ q1 = snd_soc_component_read(component,
+ WCD934X_CHIP_TIER_CTRL_EFUSE_VAL_OUT1 + (2 * flag_l_r));
+ else
+ q1 = snd_soc_component_read(component,
+ WCD934X_CHIP_TIER_CTRL_EFUSE_VAL_OUT2 + (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 wcd934x_wcd_mbhc_calc_impedance(struct snd_soc_component *component,
+ uint32_t *zl, uint32_t *zr)
+{
+ struct wcd934x_codec *wcd934x = dev_get_drvdata(component->dev);
+ s16 reg0, reg1, reg2, reg3, reg4;
+ int32_t z1L, z1R, z1Ls;
+ int zMono, z_diff1, z_diff2;
+ bool is_fsm_disable = false;
+ struct wcd934x_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 wcd934x_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, WCD934X_ANA_MBHC_BTN5);
+ reg1 = snd_soc_component_read(component, WCD934X_ANA_MBHC_BTN6);
+ reg2 = snd_soc_component_read(component, WCD934X_ANA_MBHC_BTN7);
+ reg3 = snd_soc_component_read(component, WCD934X_MBHC_CTL_CLK);
+ reg4 = snd_soc_component_read(component, WCD934X_MBHC_NEW_ZDET_ANA_CTL);
+
+ if (snd_soc_component_read(component, WCD934X_ANA_MBHC_ELECT) & 0x80) {
+ is_fsm_disable = true;
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_ELECT, 0x80, 0x00);
+ }
+
+ /* For NO-jack, disable L_DET_EN before Z-det measurements */
+ if (wcd934x->mbhc_cfg.hphl_swh)
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_MECH, 0x80, 0x00);
+
+ /* Turn off 100k pull down on HPHL */
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_MECH, 0x01, 0x00);
+
+ /* First get impedance on Left */
+ d1 = d1_a[1];
+ zdet_param_ptr = &zdet_param[1];
+ wcd934x_mbhc_zdet_ramp(component, zdet_param_ptr, &z1L, NULL, d1);
+
+ if (!WCD934X_MBHC_IS_SECOND_RAMP_REQUIRED(z1L))
+ goto left_ch_impedance;
+
+ /* Second ramp for left ch */
+ if (z1L < WCD934X_ZDET_VAL_32) {
+ zdet_param_ptr = &zdet_param[0];
+ d1 = d1_a[0];
+ } else if ((z1L > WCD934X_ZDET_VAL_400) &&
+ (z1L <= WCD934X_ZDET_VAL_1200)) {
+ zdet_param_ptr = &zdet_param[2];
+ d1 = d1_a[2];
+ } else if (z1L > WCD934X_ZDET_VAL_1200) {
+ zdet_param_ptr = &zdet_param[3];
+ d1 = d1_a[3];
+ }
+ wcd934x_mbhc_zdet_ramp(component, zdet_param_ptr, &z1L, NULL, d1);
+
+left_ch_impedance:
+ if ((z1L == WCD934X_ZDET_FLOATING_IMPEDANCE) ||
+ (z1L > WCD934X_ZDET_VAL_100K)) {
+ *zl = WCD934X_ZDET_FLOATING_IMPEDANCE;
+ zdet_param_ptr = &zdet_param[1];
+ d1 = d1_a[1];
+ } else {
+ *zl = z1L/1000;
+ wcd934x_wcd_mbhc_qfuse_cal(component, zl, 0);
+ }
+ dev_info(component->dev, "%s: impedance on HPH_L = %d(ohms)\n",
+ __func__, *zl);
+
+ /* Start of right impedance ramp and calculation */
+ wcd934x_mbhc_zdet_ramp(component, zdet_param_ptr, NULL, &z1R, d1);
+ if (WCD934X_MBHC_IS_SECOND_RAMP_REQUIRED(z1R)) {
+ if (((z1R > WCD934X_ZDET_VAL_1200) &&
+ (zdet_param_ptr->noff == 0x6)) ||
+ ((*zl) != WCD934X_ZDET_FLOATING_IMPEDANCE))
+ goto right_ch_impedance;
+ /* Second ramp for right ch */
+ if (z1R < WCD934X_ZDET_VAL_32) {
+ zdet_param_ptr = &zdet_param[0];
+ d1 = d1_a[0];
+ } else if ((z1R > WCD934X_ZDET_VAL_400) &&
+ (z1R <= WCD934X_ZDET_VAL_1200)) {
+ zdet_param_ptr = &zdet_param[2];
+ d1 = d1_a[2];
+ } else if (z1R > WCD934X_ZDET_VAL_1200) {
+ zdet_param_ptr = &zdet_param[3];
+ d1 = d1_a[3];
+ }
+ wcd934x_mbhc_zdet_ramp(component, zdet_param_ptr, NULL, &z1R, d1);
+ }
+right_ch_impedance:
+ if ((z1R == WCD934X_ZDET_FLOATING_IMPEDANCE) ||
+ (z1R > WCD934X_ZDET_VAL_100K)) {
+ *zr = WCD934X_ZDET_FLOATING_IMPEDANCE;
+ } else {
+ *zr = z1R/1000;
+ wcd934x_wcd_mbhc_qfuse_cal(component, zr, 1);
+ }
+ dev_err(component->dev, "%s: impedance on HPH_R = %d(ohms)\n",
+ __func__, *zr);
+
+ /* Mono/stereo detection */
+ if ((*zl == WCD934X_ZDET_FLOATING_IMPEDANCE) &&
+ (*zr == WCD934X_ZDET_FLOATING_IMPEDANCE)) {
+ dev_dbg(component->dev,
+ "%s: plug type is invalid or extension cable\n",
+ __func__);
+ goto zdet_complete;
+ }
+ if ((*zl == WCD934X_ZDET_FLOATING_IMPEDANCE) ||
+ (*zr == WCD934X_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(wcd934x->mbhc, WCD_MBHC_HPH_MONO);
+ goto zdet_complete;
+ }
+ snd_soc_component_write_field(component, WCD934X_HPH_R_ATEST,
+ WCD934X_HPHPA_GND_OVR_MASK, 1);
+ snd_soc_component_write_field(component, WCD934X_HPH_PA_CTL2,
+ WCD934X_HPHPA_GND_R_MASK, 1);
+ if (*zl < (WCD934X_ZDET_VAL_32/1000))
+ wcd934x_mbhc_zdet_ramp(component, &zdet_param[0], &z1Ls, NULL, d1);
+ else
+ wcd934x_mbhc_zdet_ramp(component, &zdet_param[1], &z1Ls, NULL, d1);
+ snd_soc_component_write_field(component, WCD934X_HPH_PA_CTL2,
+ WCD934X_HPHPA_GND_R_MASK, 0);
+ snd_soc_component_write_field(component, WCD934X_HPH_R_ATEST,
+ WCD934X_HPHPA_GND_OVR_MASK, 0);
+ z1Ls /= 1000;
+ wcd934x_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_err(component->dev, "%s: stereo plug type detected\n",
+ __func__);
+ wcd_mbhc_set_hph_type(wcd934x->mbhc, WCD_MBHC_HPH_STEREO);
+ } else {
+ dev_err(component->dev, "%s: MONO plug type detected\n",
+ __func__);
+ wcd_mbhc_set_hph_type(wcd934x->mbhc, WCD_MBHC_HPH_MONO);
+ }
+
+zdet_complete:
+ snd_soc_component_write(component, WCD934X_ANA_MBHC_BTN5, reg0);
+ snd_soc_component_write(component, WCD934X_ANA_MBHC_BTN6, reg1);
+ snd_soc_component_write(component, WCD934X_ANA_MBHC_BTN7, reg2);
+ /* Turn on 100k pull down on HPHL */
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_MECH, 0x01, 0x01);
+
+ /* For NO-jack, re-enable L_DET_EN after Z-det measurements */
+ if (wcd934x->mbhc_cfg.hphl_swh)
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_MECH, 0x80, 0x80);
+
+ snd_soc_component_write(component, WCD934X_MBHC_NEW_ZDET_ANA_CTL, reg4);
+ snd_soc_component_write(component, WCD934X_MBHC_CTL_CLK, reg3);
+ if (is_fsm_disable)
+ regmap_update_bits(wcd934x->regmap, WCD934X_ANA_MBHC_ELECT, 0x80, 0x80);
+}
+
+static void wcd934x_mbhc_gnd_det_ctrl(struct snd_soc_component *component,
+ bool enable)
+{
+ if (enable) {
+ snd_soc_component_write_field(component, WCD934X_ANA_MBHC_MECH,
+ WCD934X_MBHC_HSG_PULLUP_COMP_EN, 1);
+ snd_soc_component_write_field(component, WCD934X_ANA_MBHC_MECH,
+ WCD934X_MBHC_GND_DET_EN_MASK, 1);
+ } else {
+ snd_soc_component_write_field(component, WCD934X_ANA_MBHC_MECH,
+ WCD934X_MBHC_GND_DET_EN_MASK, 0);
+ snd_soc_component_write_field(component, WCD934X_ANA_MBHC_MECH,
+ WCD934X_MBHC_HSG_PULLUP_COMP_EN, 0);
+ }
+}
+
+static void wcd934x_mbhc_hph_pull_down_ctrl(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_write_field(component, WCD934X_HPH_PA_CTL2,
+ WCD934X_HPHPA_GND_R_MASK, enable);
+ snd_soc_component_write_field(component, WCD934X_HPH_PA_CTL2,
+ WCD934X_HPHPA_GND_L_MASK, enable);
+}
+
+static const struct wcd_mbhc_cb mbhc_cb = {
+ .clk_setup = wcd934x_mbhc_clk_setup,
+ .mbhc_bias = wcd934x_mbhc_mbhc_bias_control,
+ .set_btn_thr = wcd934x_mbhc_program_btn_thr,
+ .micbias_enable_status = wcd934x_mbhc_micb_en_status,
+ .hph_pull_up_control = wcd934x_mbhc_hph_l_pull_up_control,
+ .mbhc_micbias_control = wcd934x_mbhc_request_micbias,
+ .mbhc_micb_ramp_control = wcd934x_mbhc_micb_ramp_control,
+ .mbhc_micb_ctrl_thr_mic = wcd934x_mbhc_micb_ctrl_threshold_mic,
+ .compute_impedance = wcd934x_wcd_mbhc_calc_impedance,
+ .mbhc_gnd_det_ctrl = wcd934x_mbhc_gnd_det_ctrl,
+ .hph_pull_down_ctrl = wcd934x_mbhc_hph_pull_down_ctrl,
+};
+
+static int wcd934x_get_hph_type(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+ struct wcd934x_codec *wcd = snd_soc_component_get_drvdata(component);
+
+ ucontrol->value.integer.value[0] = wcd_mbhc_get_hph_type(wcd->mbhc);
+
+ return 0;
+}
+
+static int wcd934x_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 wcd934x_codec *wcd = snd_soc_component_get_drvdata(component);
+
+ mc = (struct soc_mixer_control *)(kcontrol->private_value);
+ hphr = mc->shift;
+ wcd_mbhc_get_impedance(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,
+ wcd934x_get_hph_type, NULL),
+};
+
+static const struct snd_kcontrol_new impedance_detect_controls[] = {
+ SOC_SINGLE_EXT("HPHL Impedance", 0, 0, UINT_MAX, 0,
+ wcd934x_hph_impedance_get, NULL),
+ SOC_SINGLE_EXT("HPHR Impedance", 0, 1, UINT_MAX, 0,
+ wcd934x_hph_impedance_get, NULL),
+};
+
+static int wcd934x_mbhc_init(struct snd_soc_component *component)
+{
+ struct wcd934x_ddata *data = dev_get_drvdata(component->dev->parent);
+ struct wcd934x_codec *wcd = snd_soc_component_get_drvdata(component);
+ struct wcd_mbhc_intr *intr_ids = &wcd->intr_ids;
+
+ intr_ids->mbhc_sw_intr = regmap_irq_get_virq(data->irq_data,
+ WCD934X_IRQ_MBHC_SW_DET);
+ intr_ids->mbhc_btn_press_intr = regmap_irq_get_virq(data->irq_data,
+ WCD934X_IRQ_MBHC_BUTTON_PRESS_DET);
+ intr_ids->mbhc_btn_release_intr = regmap_irq_get_virq(data->irq_data,
+ WCD934X_IRQ_MBHC_BUTTON_RELEASE_DET);
+ intr_ids->mbhc_hs_ins_intr = regmap_irq_get_virq(data->irq_data,
+ WCD934X_IRQ_MBHC_ELECT_INS_REM_LEG_DET);
+ intr_ids->mbhc_hs_rem_intr = regmap_irq_get_virq(data->irq_data,
+ WCD934X_IRQ_MBHC_ELECT_INS_REM_DET);
+ intr_ids->hph_left_ocp = regmap_irq_get_virq(data->irq_data,
+ WCD934X_IRQ_HPH_PA_OCPL_FAULT);
+ intr_ids->hph_right_ocp = regmap_irq_get_virq(data->irq_data,
+ WCD934X_IRQ_HPH_PA_OCPR_FAULT);
+
+ wcd->mbhc = wcd_mbhc_init(component, &mbhc_cb, intr_ids, wcd_mbhc_fields, true);
+ if (IS_ERR(wcd->mbhc)) {
+ wcd->mbhc = NULL;
+ return -EINVAL;
+ }
+
+ 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;
+}
static int wcd934x_comp_probe(struct snd_soc_component *component)
{
struct wcd934x_codec *wcd = dev_get_drvdata(component->dev);
@@ -2309,6 +3091,10 @@ static int wcd934x_comp_probe(struct snd_soc_component *component)
INIT_LIST_HEAD(&wcd->dai[i].slim_ch_list);
wcd934x_init_dmic(component);
+
+ if (wcd934x_mbhc_init(component))
+ dev_err(component->dev, "Failed to Initialize MBHC\n");
+
return 0;
}
@@ -3756,6 +4542,7 @@ static int wcd934x_codec_enable_hphl_pa(struct snd_soc_dapm_widget *w,
int event)
{
struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm);
+ struct wcd934x_codec *wcd = snd_soc_component_get_drvdata(comp);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
@@ -3788,6 +4575,7 @@ static int wcd934x_codec_enable_hphl_pa(struct snd_soc_dapm_widget *w,
WCD934X_CDC_RX_PGA_MUTE_EN_MASK, 0x00);
break;
case SND_SOC_DAPM_PRE_PMD:
+ wcd_mbhc_event_notify(wcd->mbhc, WCD_EVENT_POST_HPHL_PA_OFF);
/* Enable DSD Mute before PA disable */
snd_soc_component_update_bits(comp, WCD934X_HPH_L_TEST,
WCD934X_HPH_OCP_DET_MASK,
@@ -3806,6 +4594,7 @@ static int wcd934x_codec_enable_hphl_pa(struct snd_soc_dapm_widget *w,
* disabled, then 20ms delay is needed after PA disable.
*/
usleep_range(20000, 20100);
+ wcd_mbhc_event_notify(wcd->mbhc, WCD_EVENT_POST_HPHL_PA_OFF);
break;
}
@@ -3817,6 +4606,7 @@ static int wcd934x_codec_enable_hphr_pa(struct snd_soc_dapm_widget *w,
int event)
{
struct snd_soc_component *comp = snd_soc_dapm_to_component(w->dapm);
+ struct wcd934x_codec *wcd = snd_soc_component_get_drvdata(comp);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
@@ -3851,6 +4641,7 @@ static int wcd934x_codec_enable_hphr_pa(struct snd_soc_dapm_widget *w,
WCD934X_CDC_RX_PGA_MUTE_DISABLE);
break;
case SND_SOC_DAPM_PRE_PMD:
+ wcd_mbhc_event_notify(wcd->mbhc, WCD_EVENT_PRE_HPHR_PA_OFF);
snd_soc_component_update_bits(comp, WCD934X_HPH_R_TEST,
WCD934X_HPH_OCP_DET_MASK,
WCD934X_HPH_OCP_DET_DISABLE);
@@ -3868,6 +4659,7 @@ static int wcd934x_codec_enable_hphr_pa(struct snd_soc_dapm_widget *w,
* disabled, then 20ms delay is needed after PA disable.
*/
usleep_range(20000, 20100);
+ wcd_mbhc_event_notify(wcd->mbhc, WCD_EVENT_POST_HPHR_PA_OFF);
break;
}
@@ -4323,6 +5115,29 @@ static int wcd934x_codec_enable_adc(struct snd_soc_dapm_widget *w,
return 0;
}
+static int wcd934x_codec_enable_micbias(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol,
+ int event)
+{
+ struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
+ int micb_num = w->shift;
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ wcd934x_micbias_control(component, micb_num, MICB_ENABLE, true);
+ break;
+ case SND_SOC_DAPM_POST_PMU:
+ /* 1 msec delay as per HW requirement */
+ usleep_range(1000, 1100);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
+ wcd934x_micbias_control(component, micb_num, MICB_DISABLE, true);
+ break;
+ };
+
+ return 0;
+}
+
static const struct snd_soc_dapm_widget wcd934x_dapm_widgets[] = {
/* Analog Outputs */
SND_SOC_DAPM_OUTPUT("EAR"),
@@ -4778,13 +5593,17 @@ static const struct snd_soc_dapm_widget wcd934x_dapm_widgets[] = {
wcd934x_codec_enable_adc, SND_SOC_DAPM_PRE_PMU),
SND_SOC_DAPM_ADC_E("ADC4", NULL, WCD934X_ANA_AMIC4, 7, 0,
wcd934x_codec_enable_adc, SND_SOC_DAPM_PRE_PMU),
- SND_SOC_DAPM_SUPPLY("MIC BIAS1", WCD934X_ANA_MICB1, 6, 0, NULL,
+ SND_SOC_DAPM_SUPPLY("MIC BIAS1", SND_SOC_NOPM, MIC_BIAS_1, 0,
+ wcd934x_codec_enable_micbias, SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
- SND_SOC_DAPM_SUPPLY("MIC BIAS2", WCD934X_ANA_MICB2, 6, 0, NULL,
+ SND_SOC_DAPM_SUPPLY("MIC BIAS2", SND_SOC_NOPM, MIC_BIAS_2, 0,
+ wcd934x_codec_enable_micbias, SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
- SND_SOC_DAPM_SUPPLY("MIC BIAS3", WCD934X_ANA_MICB3, 6, 0, NULL,
+ SND_SOC_DAPM_SUPPLY("MIC BIAS3", SND_SOC_NOPM, MIC_BIAS_3, 0,
+ wcd934x_codec_enable_micbias, SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
- SND_SOC_DAPM_SUPPLY("MIC BIAS4", WCD934X_ANA_MICB4, 6, 0, NULL,
+ SND_SOC_DAPM_SUPPLY("MIC BIAS4", SND_SOC_NOPM, MIC_BIAS_4, 0,
+ wcd934x_codec_enable_micbias, SND_SOC_DAPM_PRE_PMU |
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_MUX("AMIC4_5 SEL", SND_SOC_NOPM, 0, 0, &tx_amic4_5),
@@ -4961,6 +5780,26 @@ static const struct snd_soc_dapm_route wcd934x_audio_map[] = {
{"SRC1", NULL, "IIR1"},
};
+static int wcd934x_codec_set_jack(struct snd_soc_component *comp,
+ struct snd_soc_jack *jack, void *data)
+{
+ struct wcd934x_codec *wcd = dev_get_drvdata(comp->dev);
+ int ret = 0;
+
+ if (!wcd->mbhc)
+ return -ENOTSUPP;
+
+ if (jack && !wcd->mbhc_started) {
+ ret = wcd_mbhc_start(wcd->mbhc, &wcd->mbhc_cfg, jack);
+ wcd->mbhc_started = true;
+ } else if (wcd->mbhc_started) {
+ wcd_mbhc_stop(wcd->mbhc);
+ wcd->mbhc_started = false;
+ }
+
+ return ret;
+}
+
static const struct snd_soc_component_driver wcd934x_component_drv = {
.probe = wcd934x_comp_probe,
.remove = wcd934x_comp_remove,
@@ -4971,11 +5810,13 @@ static const struct snd_soc_component_driver wcd934x_component_drv = {
.num_dapm_widgets = ARRAY_SIZE(wcd934x_dapm_widgets),
.dapm_routes = wcd934x_audio_map,
.num_dapm_routes = ARRAY_SIZE(wcd934x_audio_map),
+ .set_jack = wcd934x_codec_set_jack,
};
static int wcd934x_codec_parse_data(struct wcd934x_codec *wcd)
{
struct device *dev = &wcd->sdev->dev;
+ struct wcd_mbhc_config *cfg = &wcd->mbhc_cfg;
struct device_node *ifc_dev_np;
ifc_dev_np = of_parse_phandle(dev->of_node, "slim-ifc-dev", 0);
@@ -5001,6 +5842,18 @@ static int wcd934x_codec_parse_data(struct wcd934x_codec *wcd)
of_property_read_u32(dev->parent->of_node, "qcom,dmic-sample-rate",
&wcd->dmic_sample_rate);
+ cfg->mbhc_micbias = MIC_BIAS_2;
+ cfg->anc_micbias = MIC_BIAS_2;
+ cfg->v_hs_max = WCD_MBHC_HS_V_MAX;
+ cfg->num_btn = WCD934X_MBHC_MAX_BUTTONS;
+ cfg->micb_mv = wcd->micb2_mv;
+ cfg->linein_th = 5000;
+ cfg->hs_thr = 1700;
+ cfg->hph_thr = 50;
+
+ wcd_dt_parse_mbhc_data(dev, cfg);
+
+
return 0;
}
@@ -5020,6 +5873,7 @@ static int wcd934x_codec_probe(struct platform_device *pdev)
wcd->extclk = data->extclk;
wcd->sdev = to_slim_device(data->dev);
mutex_init(&wcd->sysclk_mutex);
+ mutex_init(&wcd->micb_lock);
ret = wcd934x_codec_parse_data(wcd);
if (ret) {
--
2.21.0