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M7350/kernel/sound/soc/codecs/wcd-mbhc-v2.c
T f75098198c M7350v5_en_gpl
2024-09-09 08:57:42 +00:00

2452 lines
70 KiB
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/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/of_gpio.h>
#include <linux/platform_device.h>
#include <linux/device.h>
#include <linux/printk.h>
#include <linux/ratelimit.h>
#include <linux/list.h>
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/pm_runtime.h>
#include <linux/kernel.h>
#include <linux/input.h>
#include <linux/firmware.h>
#include <linux/completion.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include "wcd-mbhc-v2.h"
#include "wcdcal-hwdep.h"
#define WCD_MBHC_JACK_MASK (SND_JACK_HEADSET | SND_JACK_OC_HPHL | \
SND_JACK_OC_HPHR | SND_JACK_LINEOUT | \
SND_JACK_MECHANICAL | SND_JACK_MICROPHONE2 | \
SND_JACK_UNSUPPORTED)
#define WCD_MBHC_JACK_BUTTON_MASK (SND_JACK_BTN_0 | SND_JACK_BTN_1 | \
SND_JACK_BTN_2 | SND_JACK_BTN_3 | \
SND_JACK_BTN_4 | SND_JACK_BTN_5 | \
SND_JACK_BTN_6 | SND_JACK_BTN_7)
#define OCP_ATTEMPT 1
#define HS_DETECT_PLUG_TIME_MS (3 * 1000)
#define SPECIAL_HS_DETECT_TIME_MS (2 * 1000)
#define MBHC_BUTTON_PRESS_THRESHOLD_MIN 250
#define GND_MIC_SWAP_THRESHOLD 4
#define WCD_FAKE_REMOVAL_MIN_PERIOD_MS 100
#define HS_VREF_MIN_VAL 1400
#define FW_READ_ATTEMPTS 15
#define FW_READ_TIMEOUT 4000000
#define FAKE_REM_RETRY_ATTEMPTS 3
#define MAX_IMPED 60000
#define WCD_MBHC_BTN_PRESS_COMPL_TIMEOUT_MS 50
#define ANC_DETECT_RETRY_CNT 7
static int det_extn_cable_en;
module_param(det_extn_cable_en, int,
S_IRUGO | S_IWUSR | S_IWGRP);
MODULE_PARM_DESC(det_extn_cable_en, "enable/disable extn cable detect");
enum wcd_mbhc_cs_mb_en_flag {
WCD_MBHC_EN_CS = 0,
WCD_MBHC_EN_MB,
WCD_MBHC_EN_PULLUP,
WCD_MBHC_EN_NONE,
};
static void wcd_mbhc_jack_report(struct wcd_mbhc *mbhc,
struct snd_soc_jack *jack, int status, int mask)
{
snd_soc_jack_report(jack, status, mask);
}
static void __hphocp_off_report(struct wcd_mbhc *mbhc, u32 jack_status,
int irq)
{
struct snd_soc_codec *codec = mbhc->codec;
dev_dbg(codec->dev, "%s: clear ocp status %x\n",
__func__, jack_status);
if (mbhc->hph_status & jack_status) {
mbhc->hph_status &= ~jack_status;
wcd_mbhc_jack_report(mbhc, &mbhc->headset_jack,
mbhc->hph_status, WCD_MBHC_JACK_MASK);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_OCP_FSM_EN, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_OCP_FSM_EN, 1);
/*
* reset retry counter as PA is turned off signifying
* start of new OCP detection session
*/
if (mbhc->intr_ids->hph_left_ocp)
mbhc->hphlocp_cnt = 0;
else
mbhc->hphrocp_cnt = 0;
mbhc->mbhc_cb->irq_control(codec, irq, true);
}
}
static void hphrocp_off_report(struct wcd_mbhc *mbhc, u32 jack_status)
{
__hphocp_off_report(mbhc, SND_JACK_OC_HPHR,
mbhc->intr_ids->hph_right_ocp);
}
static void hphlocp_off_report(struct wcd_mbhc *mbhc, u32 jack_status)
{
__hphocp_off_report(mbhc, SND_JACK_OC_HPHL,
mbhc->intr_ids->hph_left_ocp);
}
static void wcd_program_hs_vref(struct wcd_mbhc *mbhc)
{
struct wcd_mbhc_plug_type_cfg *plug_type_cfg;
struct snd_soc_codec *codec = mbhc->codec;
u32 reg_val;
plug_type_cfg = WCD_MBHC_CAL_PLUG_TYPE_PTR(mbhc->mbhc_cfg->calibration);
reg_val = ((plug_type_cfg->v_hs_max - HS_VREF_MIN_VAL) / 100);
dev_dbg(codec->dev, "%s: reg_val = %x\n", __func__, reg_val);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_HS_VREF, reg_val);
}
static void wcd_program_btn_threshold(const struct wcd_mbhc *mbhc, bool micbias)
{
struct wcd_mbhc_btn_detect_cfg *btn_det;
struct snd_soc_codec *codec = mbhc->codec;
struct snd_soc_card *card = codec->component.card;
s16 *btn_low, *btn_high;
if (mbhc->mbhc_cfg->calibration == NULL) {
dev_err(card->dev, "%s: calibration data is NULL\n", __func__);
return;
}
btn_det = WCD_MBHC_CAL_BTN_DET_PTR(mbhc->mbhc_cfg->calibration);
btn_low = btn_det->_v_btn_low;
btn_high = ((void *)&btn_det->_v_btn_low) +
(sizeof(btn_det->_v_btn_low[0]) * btn_det->num_btn);
mbhc->mbhc_cb->set_btn_thr(codec, btn_low, btn_high, btn_det->num_btn,
micbias);
}
static void wcd_enable_curr_micbias(const struct wcd_mbhc *mbhc,
const enum wcd_mbhc_cs_mb_en_flag cs_mb_en)
{
/*
* Some codecs handle micbias/pullup enablement in codec
* drivers itself and micbias is not needed for regular
* plug type detection. So if micbias_control callback function
* is defined, just return.
*/
if (mbhc->mbhc_cb->mbhc_micbias_control)
return;
pr_debug("%s: enter, cs_mb_en: %d\n", __func__, cs_mb_en);
switch (cs_mb_en) {
case WCD_MBHC_EN_CS:
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_MICB_CTRL, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL, 3);
/* Program Button threshold registers as per CS */
wcd_program_btn_threshold(mbhc, false);
break;
case WCD_MBHC_EN_MB:
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 1);
/* Disable PULL_UP_EN & enable MICBIAS */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_MICB_CTRL, 2);
/* Program Button threshold registers as per MICBIAS */
wcd_program_btn_threshold(mbhc, true);
break;
case WCD_MBHC_EN_PULLUP:
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL, 3);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 1);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_MICB_CTRL, 1);
/* Program Button threshold registers as per MICBIAS */
wcd_program_btn_threshold(mbhc, true);
break;
case WCD_MBHC_EN_NONE:
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 1);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_MICB_CTRL, 0);
break;
default:
pr_debug("%s: Invalid parameter", __func__);
break;
}
pr_debug("%s: exit\n", __func__);
}
static const char *wcd_mbhc_get_event_string(int event)
{
switch (event) {
case WCD_EVENT_PRE_MICBIAS_2_OFF:
return WCD_MBHC_STRINGIFY(WCD_EVENT_PRE_MICBIAS_2_OFF);
case WCD_EVENT_POST_MICBIAS_2_OFF:
return WCD_MBHC_STRINGIFY(WCD_EVENT_POST_MICBIAS_2_OFF);
case WCD_EVENT_PRE_MICBIAS_2_ON:
return WCD_MBHC_STRINGIFY(WCD_EVENT_PRE_MICBIAS_2_ON);
case WCD_EVENT_POST_MICBIAS_2_ON:
return WCD_MBHC_STRINGIFY(WCD_EVENT_POST_MICBIAS_2_ON);
case WCD_EVENT_PRE_HPHL_PA_ON:
return WCD_MBHC_STRINGIFY(WCD_EVENT_PRE_HPHL_PA_ON);
case WCD_EVENT_POST_HPHL_PA_OFF:
return WCD_MBHC_STRINGIFY(WCD_EVENT_POST_HPHL_PA_OFF);
case WCD_EVENT_PRE_HPHR_PA_ON:
return WCD_MBHC_STRINGIFY(WCD_EVENT_PRE_HPHR_PA_ON);
case WCD_EVENT_POST_HPHR_PA_OFF:
return WCD_MBHC_STRINGIFY(WCD_EVENT_POST_HPHR_PA_OFF);
case WCD_EVENT_PRE_HPHR_PA_OFF:
return WCD_MBHC_STRINGIFY(WCD_EVENT_PRE_HPHR_PA_OFF);
case WCD_EVENT_PRE_HPHL_PA_OFF:
return WCD_MBHC_STRINGIFY(WCD_EVENT_PRE_HPHL_PA_OFF);
case WCD_EVENT_POST_DAPM_MICBIAS_2_ON:
return WCD_MBHC_STRINGIFY(WCD_EVENT_POST_DAPM_MICBIAS_2_ON);
case WCD_EVENT_PRE_DAPM_MICBIAS_2_ON:
return WCD_MBHC_STRINGIFY(WCD_EVENT_PRE_DAPM_MICBIAS_2_ON);
case WCD_EVENT_POST_DAPM_MICBIAS_2_OFF:
return WCD_MBHC_STRINGIFY(WCD_EVENT_POST_DAPM_MICBIAS_2_OFF);
case WCD_EVENT_PRE_DAPM_MICBIAS_2_OFF:
return WCD_MBHC_STRINGIFY(WCD_EVENT_PRE_DAPM_MICBIAS_2_OFF);
case WCD_EVENT_INVALID:
default:
return WCD_MBHC_STRINGIFY(WCD_EVENT_INVALID);
}
}
static int wcd_event_notify(struct notifier_block *self, unsigned long val,
void *data)
{
struct wcd_mbhc *mbhc = (struct wcd_mbhc *)data;
enum wcd_notify_event event = (enum wcd_notify_event)val;
struct snd_soc_codec *codec = mbhc->codec;
bool micbias2 = false;
bool micbias1 = false;
u8 fsm_en;
pr_debug("%s: event %s (%d)\n", __func__,
wcd_mbhc_get_event_string(event), event);
if (mbhc->mbhc_cb->micbias_enable_status) {
micbias2 = mbhc->mbhc_cb->micbias_enable_status(mbhc,
MIC_BIAS_2);
micbias1 = mbhc->mbhc_cb->micbias_enable_status(mbhc,
MIC_BIAS_1);
}
switch (event) {
/* MICBIAS usage change */
case WCD_EVENT_POST_DAPM_MICBIAS_2_ON:
mbhc->is_hs_recording = true;
pr_debug("%s: is_capture: %d\n", __func__,
mbhc->is_hs_recording);
break;
case WCD_EVENT_POST_MICBIAS_2_ON:
if (!mbhc->micbias_enable)
goto out_micb_en;
if (mbhc->mbhc_cb->mbhc_common_micb_ctrl) {
mbhc->mbhc_cb->mbhc_common_micb_ctrl(codec,
MBHC_COMMON_MICB_PRECHARGE,
true);
mbhc->mbhc_cb->mbhc_common_micb_ctrl(codec,
MBHC_COMMON_MICB_SET_VAL,
true);
/*
* Special headset needs MICBIAS as 2.7V so wait for
* 50 msec for the MICBIAS to reach 2.7 volts.
*/
msleep(50);
}
if (mbhc->mbhc_cb->set_auto_zeroing)
mbhc->mbhc_cb->set_auto_zeroing(codec, true);
if (mbhc->mbhc_cb->mbhc_common_micb_ctrl)
mbhc->mbhc_cb->mbhc_common_micb_ctrl(codec,
MBHC_COMMON_MICB_PRECHARGE,
false);
out_micb_en:
/* Disable current source if micbias enabled */
if (mbhc->mbhc_cb->mbhc_micbias_control) {
WCD_MBHC_REG_READ(WCD_MBHC_FSM_EN, fsm_en);
if (fsm_en)
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL,
0);
} else {
mbhc->is_hs_recording = true;
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
}
/* configure cap settings properly when micbias is enabled */
if (mbhc->mbhc_cb->set_cap_mode)
mbhc->mbhc_cb->set_cap_mode(codec, micbias1, true);
break;
case WCD_EVENT_PRE_MICBIAS_2_OFF:
/*
* Before MICBIAS_2 is turned off, if FSM is enabled,
* make sure current source is enabled so as to detect
* button press/release events
*/
if (mbhc->mbhc_cb->mbhc_micbias_control &&
!mbhc->micbias_enable) {
WCD_MBHC_REG_READ(WCD_MBHC_FSM_EN, fsm_en);
if (fsm_en)
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL,
3);
}
break;
/* MICBIAS usage change */
case WCD_EVENT_POST_DAPM_MICBIAS_2_OFF:
mbhc->is_hs_recording = false;
pr_debug("%s: is_capture: %d\n", __func__,
mbhc->is_hs_recording);
break;
case WCD_EVENT_POST_MICBIAS_2_OFF:
if (mbhc->mbhc_cb->set_auto_zeroing)
mbhc->mbhc_cb->set_auto_zeroing(codec, false);
if (mbhc->mbhc_cb->set_micbias_value)
mbhc->mbhc_cb->set_micbias_value(codec);
if (!mbhc->mbhc_cb->mbhc_micbias_control)
mbhc->is_hs_recording = false;
/* Enable PULL UP if PA's are enabled */
if ((test_bit(WCD_MBHC_EVENT_PA_HPHL, &mbhc->event_state)) ||
(test_bit(WCD_MBHC_EVENT_PA_HPHR,
&mbhc->event_state)))
/* enable pullup and cs, disable mb */
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_PULLUP);
else
/* enable current source and disable mb, pullup*/
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_CS);
/* configure cap settings properly when micbias is disabled */
if (mbhc->mbhc_cb->set_cap_mode)
mbhc->mbhc_cb->set_cap_mode(codec, micbias1, false);
break;
case WCD_EVENT_PRE_HPHL_PA_OFF:
mutex_lock(&mbhc->hphl_pa_lock);
break;
case WCD_EVENT_POST_HPHL_PA_OFF:
clear_bit(WCD_MBHC_HPHL_PA_OFF_ACK, &mbhc->hph_pa_dac_state);
if (mbhc->hph_status & SND_JACK_OC_HPHL)
hphlocp_off_report(mbhc, SND_JACK_OC_HPHL);
clear_bit(WCD_MBHC_EVENT_PA_HPHL, &mbhc->event_state);
/* check if micbias is enabled */
if (micbias2)
/* Disable cs, pullup & enable micbias */
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
else
/* Disable micbias, pullup & enable cs */
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_CS);
mutex_unlock(&mbhc->hphl_pa_lock);
break;
case WCD_EVENT_PRE_HPHR_PA_OFF:
mutex_lock(&mbhc->hphr_pa_lock);
break;
case WCD_EVENT_POST_HPHR_PA_OFF:
clear_bit(WCD_MBHC_HPHR_PA_OFF_ACK, &mbhc->hph_pa_dac_state);
if (mbhc->hph_status & SND_JACK_OC_HPHR)
hphrocp_off_report(mbhc, SND_JACK_OC_HPHR);
clear_bit(WCD_MBHC_EVENT_PA_HPHR, &mbhc->event_state);
/* check if micbias is enabled */
if (micbias2)
/* Disable cs, pullup & enable micbias */
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
else
/* Disable micbias, pullup & enable cs */
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_CS);
mutex_unlock(&mbhc->hphr_pa_lock);
break;
case WCD_EVENT_PRE_HPHL_PA_ON:
set_bit(WCD_MBHC_EVENT_PA_HPHL, &mbhc->event_state);
/* check if micbias is enabled */
if (micbias2)
/* Disable cs, pullup & enable micbias */
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
else
/* Disable micbias, enable pullup & cs */
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_PULLUP);
break;
case WCD_EVENT_PRE_HPHR_PA_ON:
set_bit(WCD_MBHC_EVENT_PA_HPHR, &mbhc->event_state);
/* check if micbias is enabled */
if (micbias2)
/* Disable cs, pullup & enable micbias */
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
else
/* Disable micbias, enable pullup & cs */
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_PULLUP);
break;
default:
break;
}
return 0;
}
static int wcd_cancel_btn_work(struct wcd_mbhc *mbhc)
{
int r;
r = cancel_delayed_work_sync(&mbhc->mbhc_btn_dwork);
/*
* if scheduled mbhc.mbhc_btn_dwork is canceled from here,
* we have to unlock from here instead btn_work
*/
if (r)
mbhc->mbhc_cb->lock_sleep(mbhc, false);
return r;
}
static bool wcd_swch_level_remove(struct wcd_mbhc *mbhc)
{
u16 result2;
WCD_MBHC_REG_READ(WCD_MBHC_SWCH_LEVEL_REMOVE, result2);
return (result2) ? true : false;
}
/* should be called under interrupt context that hold suspend */
static void wcd_schedule_hs_detect_plug(struct wcd_mbhc *mbhc,
struct work_struct *work)
{
pr_debug("%s: scheduling correct_swch_plug\n", __func__);
WCD_MBHC_RSC_ASSERT_LOCKED(mbhc);
mbhc->hs_detect_work_stop = false;
mbhc->mbhc_cb->lock_sleep(mbhc, true);
schedule_work(work);
}
/* called under codec_resource_lock acquisition */
static void wcd_cancel_hs_detect_plug(struct wcd_mbhc *mbhc,
struct work_struct *work)
{
pr_debug("%s: Canceling correct_plug_swch\n", __func__);
mbhc->hs_detect_work_stop = true;
WCD_MBHC_RSC_UNLOCK(mbhc);
if (cancel_work_sync(work)) {
pr_debug("%s: correct_plug_swch is canceled\n",
__func__);
mbhc->mbhc_cb->lock_sleep(mbhc, false);
}
WCD_MBHC_RSC_LOCK(mbhc);
}
static void wcd_mbhc_clr_and_turnon_hph_padac(struct wcd_mbhc *mbhc)
{
bool pa_turned_on = false;
u8 wg_time;
WCD_MBHC_REG_READ(WCD_MBHC_HPH_CNP_WG_TIME, wg_time);
wg_time += 1;
mutex_lock(&mbhc->hphr_pa_lock);
if (test_and_clear_bit(WCD_MBHC_HPHR_PA_OFF_ACK,
&mbhc->hph_pa_dac_state)) {
pr_debug("%s: HPHR clear flag and enable PA\n", __func__);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_HPHR_PA_EN, 1);
pa_turned_on = true;
}
mutex_unlock(&mbhc->hphr_pa_lock);
mutex_lock(&mbhc->hphl_pa_lock);
if (test_and_clear_bit(WCD_MBHC_HPHL_PA_OFF_ACK,
&mbhc->hph_pa_dac_state)) {
pr_debug("%s: HPHL clear flag and enable PA\n", __func__);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_HPHL_PA_EN, 1);
pa_turned_on = true;
}
mutex_unlock(&mbhc->hphl_pa_lock);
if (pa_turned_on) {
pr_debug("%s: PA was turned on by MBHC and not by DAPM\n",
__func__);
usleep_range(wg_time * 1000, wg_time * 1000 + 50);
}
}
static bool wcd_mbhc_is_hph_pa_on(struct wcd_mbhc *mbhc)
{
bool hph_pa_on = false;
WCD_MBHC_REG_READ(WCD_MBHC_HPH_PA_EN, hph_pa_on);
return (hph_pa_on) ? true : false;
}
static void wcd_mbhc_set_and_turnoff_hph_padac(struct wcd_mbhc *mbhc)
{
u8 wg_time;
WCD_MBHC_REG_READ(WCD_MBHC_HPH_CNP_WG_TIME, wg_time);
wg_time += 1;
/* If headphone PA is on, check if userspace receives
* removal event to sync-up PA's state */
if (wcd_mbhc_is_hph_pa_on(mbhc)) {
pr_debug("%s PA is on, setting PA_OFF_ACK\n", __func__);
set_bit(WCD_MBHC_HPHL_PA_OFF_ACK, &mbhc->hph_pa_dac_state);
set_bit(WCD_MBHC_HPHR_PA_OFF_ACK, &mbhc->hph_pa_dac_state);
} else {
pr_debug("%s PA is off\n", __func__);
}
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_HPH_PA_EN, 0);
usleep_range(wg_time * 1000, wg_time * 1000 + 50);
}
int wcd_mbhc_get_impedance(struct wcd_mbhc *mbhc, uint32_t *zl,
uint32_t *zr)
{
*zl = mbhc->zl;
*zr = mbhc->zr;
if (*zl && *zr)
return 0;
else
return -EINVAL;
}
static void wcd_mbhc_hs_elec_irq(struct wcd_mbhc *mbhc, int irq_type,
bool enable)
{
int irq;
WCD_MBHC_RSC_ASSERT_LOCKED(mbhc);
if (irq_type == WCD_MBHC_ELEC_HS_INS)
irq = mbhc->intr_ids->mbhc_hs_ins_intr;
else if (irq_type == WCD_MBHC_ELEC_HS_REM)
irq = mbhc->intr_ids->mbhc_hs_rem_intr;
else {
pr_debug("%s: irq_type: %d, enable: %d\n",
__func__, irq_type, enable);
return;
}
pr_debug("%s: irq: %d, enable: %d, intr_status:%lu\n",
__func__, irq, enable, mbhc->intr_status);
if ((test_bit(irq_type, &mbhc->intr_status)) != enable) {
mbhc->mbhc_cb->irq_control(mbhc->codec, irq, enable);
if (enable)
set_bit(irq_type, &mbhc->intr_status);
else
clear_bit(irq_type, &mbhc->intr_status);
}
}
static void wcd_mbhc_report_plug(struct wcd_mbhc *mbhc, int insertion,
enum snd_jack_types jack_type)
{
WCD_MBHC_RSC_ASSERT_LOCKED(mbhc);
pr_debug("%s: enter insertion %d hph_status %x\n",
__func__, insertion, mbhc->hph_status);
if (!insertion) {
/* Report removal */
mbhc->hph_status &= ~jack_type;
/*
* cancel possibly scheduled btn work and
* report release if we reported button press
*/
if (wcd_cancel_btn_work(mbhc)) {
pr_debug("%s: button press is canceled\n", __func__);
} else if (mbhc->buttons_pressed) {
pr_debug("%s: release of button press%d\n",
__func__, jack_type);
wcd_mbhc_jack_report(mbhc, &mbhc->button_jack, 0,
mbhc->buttons_pressed);
mbhc->buttons_pressed &=
~WCD_MBHC_JACK_BUTTON_MASK;
}
if (mbhc->micbias_enable) {
if (mbhc->mbhc_cb->mbhc_micbias_control)
mbhc->mbhc_cb->mbhc_micbias_control(
mbhc->codec, MIC_BIAS_2,
MICB_DISABLE);
if (mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic)
mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(
mbhc->codec,
MIC_BIAS_2, false);
mbhc->micbias_enable = false;
}
mbhc->hph_type = WCD_MBHC_HPH_NONE;
mbhc->zl = mbhc->zr = 0;
pr_debug("%s: Reporting removal %d(%x)\n", __func__,
jack_type, mbhc->hph_status);
wcd_mbhc_jack_report(mbhc, &mbhc->headset_jack,
mbhc->hph_status, WCD_MBHC_JACK_MASK);
wcd_mbhc_set_and_turnoff_hph_padac(mbhc);
hphrocp_off_report(mbhc, SND_JACK_OC_HPHR);
hphlocp_off_report(mbhc, SND_JACK_OC_HPHL);
mbhc->current_plug = MBHC_PLUG_TYPE_NONE;
} else {
/*
* Report removal of current jack type.
* Headphone to headset shouldn't report headphone
* removal.
*/
if (mbhc->mbhc_cfg->detect_extn_cable &&
(mbhc->current_plug == MBHC_PLUG_TYPE_HIGH_HPH ||
jack_type == SND_JACK_LINEOUT) &&
(mbhc->hph_status && mbhc->hph_status != jack_type)) {
if (mbhc->micbias_enable) {
if (mbhc->mbhc_cb->mbhc_micbias_control)
mbhc->mbhc_cb->mbhc_micbias_control(
mbhc->codec, MIC_BIAS_2,
MICB_DISABLE);
if (mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic)
mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(
mbhc->codec,
MIC_BIAS_2, false);
mbhc->micbias_enable = false;
}
mbhc->hph_type = WCD_MBHC_HPH_NONE;
mbhc->zl = mbhc->zr = 0;
pr_debug("%s: Reporting removal (%x)\n",
__func__, mbhc->hph_status);
wcd_mbhc_jack_report(mbhc, &mbhc->headset_jack,
0, WCD_MBHC_JACK_MASK);
if (mbhc->hph_status == SND_JACK_LINEOUT) {
pr_debug("%s: Enable micbias\n", __func__);
/* Disable current source and enable micbias */
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
pr_debug("%s: set up elec removal detection\n",
__func__);
WCD_MBHC_REG_UPDATE_BITS(
WCD_MBHC_ELECT_DETECTION_TYPE,
0);
usleep_range(200, 210);
wcd_mbhc_hs_elec_irq(mbhc,
WCD_MBHC_ELEC_HS_REM,
true);
}
mbhc->hph_status &= ~(SND_JACK_HEADSET |
SND_JACK_LINEOUT |
SND_JACK_ANC_HEADPHONE |
SND_JACK_UNSUPPORTED);
}
if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADSET &&
jack_type == SND_JACK_HEADPHONE)
mbhc->hph_status &= ~SND_JACK_HEADSET;
/* Report insertion */
if (jack_type == SND_JACK_HEADPHONE)
mbhc->current_plug = MBHC_PLUG_TYPE_HEADPHONE;
else if (jack_type == SND_JACK_UNSUPPORTED)
mbhc->current_plug = MBHC_PLUG_TYPE_GND_MIC_SWAP;
else if (jack_type == SND_JACK_HEADSET) {
mbhc->current_plug = MBHC_PLUG_TYPE_HEADSET;
mbhc->jiffies_atreport = jiffies;
} else if (jack_type == SND_JACK_LINEOUT) {
mbhc->current_plug = MBHC_PLUG_TYPE_HIGH_HPH;
} else if (jack_type == SND_JACK_ANC_HEADPHONE)
mbhc->current_plug = MBHC_PLUG_TYPE_ANC_HEADPHONE;
if (mbhc->impedance_detect &&
mbhc->mbhc_cb->compute_impedance &&
(mbhc->mbhc_cfg->linein_th != 0)) {
mbhc->mbhc_cb->compute_impedance(mbhc,
&mbhc->zl, &mbhc->zr);
if ((mbhc->zl > mbhc->mbhc_cfg->linein_th &&
mbhc->zl < MAX_IMPED) &&
(mbhc->zr > mbhc->mbhc_cfg->linein_th &&
mbhc->zr < MAX_IMPED) &&
(jack_type == SND_JACK_HEADPHONE)) {
jack_type = SND_JACK_LINEOUT;
mbhc->current_plug = MBHC_PLUG_TYPE_HIGH_HPH;
if (mbhc->hph_status) {
mbhc->hph_status &= ~(SND_JACK_HEADSET |
SND_JACK_LINEOUT |
SND_JACK_UNSUPPORTED);
wcd_mbhc_jack_report(mbhc,
&mbhc->headset_jack,
mbhc->hph_status,
WCD_MBHC_JACK_MASK);
}
pr_debug("%s: Marking jack type as SND_JACK_LINEOUT\n",
__func__);
}
}
mbhc->hph_status |= jack_type;
pr_debug("%s: Reporting insertion %d(%x)\n", __func__,
jack_type, mbhc->hph_status);
wcd_mbhc_jack_report(mbhc, &mbhc->headset_jack,
(mbhc->hph_status | SND_JACK_MECHANICAL),
WCD_MBHC_JACK_MASK);
wcd_mbhc_clr_and_turnon_hph_padac(mbhc);
}
pr_debug("%s: leave hph_status %x\n", __func__, mbhc->hph_status);
}
static bool wcd_mbhc_detect_anc_plug_type(struct wcd_mbhc *mbhc)
{
bool anc_mic_found = false;
u16 val, hs_comp_res, btn_status = 0;
unsigned long retry = 0;
int valid_plug_cnt = 0, invalid_plug_cnt = 0;
int btn_status_cnt = 0;
bool is_check_btn_press = false;
if (mbhc->mbhc_cfg->anc_micbias < MIC_BIAS_1 ||
mbhc->mbhc_cfg->anc_micbias > MIC_BIAS_4)
return false;
if (!mbhc->mbhc_cb->mbhc_micbias_control)
return false;
WCD_MBHC_REG_READ(WCD_MBHC_FSM_EN, val);
if (val)
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 0);
mbhc->mbhc_cb->mbhc_micbias_control(mbhc->codec,
mbhc->mbhc_cfg->anc_micbias,
MICB_ENABLE);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_MUX_CTL, 0x2);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ANC_DET_EN, 1);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 1);
/*
* wait for button debounce time 20ms. If 4-pole plug is inserted
* into 5-pole jack, then there will be a button press interrupt
* during anc plug detection. In that case though Hs_comp_res is 0,
* it should not be declared as ANC plug type
*/
usleep_range(20000, 20100);
/*
* After enabling FSM, to handle slow insertion scenarios,
* check hs_comp_result for few times to see if the IN3 voltage
* is below the Vref
*/
do {
if (wcd_swch_level_remove(mbhc)) {
pr_debug("%s: Switch level is low\n", __func__);
goto exit;
}
pr_debug("%s: Retry attempt %lu\n", __func__, retry + 1);
WCD_MBHC_REG_READ(WCD_MBHC_HS_COMP_RESULT, hs_comp_res);
if (!hs_comp_res) {
valid_plug_cnt++;
is_check_btn_press = true;
} else
invalid_plug_cnt++;
/* Wait 1ms before taking another reading */
usleep_range(1000, 1100);
WCD_MBHC_REG_READ(WCD_MBHC_FSM_STATUS, btn_status);
if (btn_status)
btn_status_cnt++;
retry++;
} while (retry < ANC_DETECT_RETRY_CNT);
pr_debug("%s: valid: %d, invalid: %d, btn_status_cnt: %d\n",
__func__, valid_plug_cnt, invalid_plug_cnt, btn_status_cnt);
/* decision logic */
if ((valid_plug_cnt > invalid_plug_cnt) && is_check_btn_press &&
(btn_status_cnt == 0))
anc_mic_found = true;
exit:
if (!val)
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ANC_DET_EN, 0);
mbhc->mbhc_cb->mbhc_micbias_control(mbhc->codec,
mbhc->mbhc_cfg->anc_micbias,
MICB_DISABLE);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_MUX_CTL, 0x0);
pr_debug("%s: anc mic %sfound\n", __func__,
anc_mic_found ? "" : "not ");
return anc_mic_found;
}
static void wcd_mbhc_find_plug_and_report(struct wcd_mbhc *mbhc,
enum wcd_mbhc_plug_type plug_type)
{
bool anc_mic_found = false;
enum snd_jack_types jack_type;
pr_debug("%s: enter current_plug(%d) new_plug(%d)\n",
__func__, mbhc->current_plug, plug_type);
WCD_MBHC_RSC_ASSERT_LOCKED(mbhc);
if (mbhc->current_plug == plug_type) {
pr_debug("%s: cable already reported, exit\n", __func__);
goto exit;
}
if (plug_type == MBHC_PLUG_TYPE_HEADPHONE) {
/*
* Nothing was reported previously
* report a headphone or unsupported
*/
wcd_mbhc_report_plug(mbhc, 1, SND_JACK_HEADPHONE);
} else if (plug_type == MBHC_PLUG_TYPE_GND_MIC_SWAP) {
if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADPHONE)
wcd_mbhc_report_plug(mbhc, 0,
SND_JACK_HEADPHONE);
if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADSET)
wcd_mbhc_report_plug(mbhc, 0, SND_JACK_HEADSET);
wcd_mbhc_report_plug(mbhc, 1, SND_JACK_UNSUPPORTED);
} else if (plug_type == MBHC_PLUG_TYPE_HEADSET) {
if (mbhc->mbhc_cfg->enable_anc_mic_detect)
anc_mic_found = wcd_mbhc_detect_anc_plug_type(mbhc);
jack_type = SND_JACK_HEADSET;
if (anc_mic_found)
jack_type = SND_JACK_ANC_HEADPHONE;
/*
* If Headphone was reported previously, this will
* only report the mic line
*/
wcd_mbhc_report_plug(mbhc, 1, jack_type);
} else if (plug_type == MBHC_PLUG_TYPE_HIGH_HPH) {
if (mbhc->mbhc_cfg->detect_extn_cable) {
/* High impedance device found. Report as LINEOUT */
wcd_mbhc_report_plug(mbhc, 1, SND_JACK_LINEOUT);
pr_debug("%s: setup mic trigger for further detection\n",
__func__);
/* Disable HW FSM and current source */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL, 0);
/* Setup for insertion detection */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_DETECTION_TYPE,
1);
/*
* Enable HPHL trigger and MIC Schmitt triggers
* and request for elec insertion interrupts
*/
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_SCHMT_ISRC,
3);
wcd_mbhc_hs_elec_irq(mbhc, WCD_MBHC_ELEC_HS_INS,
true);
} else {
wcd_mbhc_report_plug(mbhc, 1, SND_JACK_LINEOUT);
}
} else {
WARN(1, "Unexpected current plug_type %d, plug_type %d\n",
mbhc->current_plug, plug_type);
}
exit:
pr_debug("%s: leave\n", __func__);
}
/* To determine if cross connection occured */
static int wcd_check_cross_conn(struct wcd_mbhc *mbhc)
{
u16 swap_res;
enum wcd_mbhc_plug_type plug_type = MBHC_PLUG_TYPE_NONE;
s16 reg1;
bool hphl_sch_res, hphr_sch_res;
if (wcd_swch_level_remove(mbhc)) {
pr_debug("%s: Switch level is low\n", __func__);
return -EINVAL;
}
WCD_MBHC_REG_READ(WCD_MBHC_ELECT_SCHMT_ISRC, reg1);
/*
* Check if there is any cross connection,
* Micbias and schmitt trigger (HPHL-HPHR)
* needs to be enabled. For some codecs like wcd9335,
* pull-up will already be enabled when this function
* is called for cross-connection identification. No
* need to enable micbias in that case.
*/
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_SCHMT_ISRC, 2);
WCD_MBHC_REG_READ(WCD_MBHC_ELECT_RESULT, swap_res);
pr_debug("%s: swap_res%x\n", __func__, swap_res);
/*
* Read reg hphl and hphr schmitt result with cross connection
* bit. These bits will both be "0" in case of cross connection
* otherwise, they stay at 1
*/
WCD_MBHC_REG_READ(WCD_MBHC_HPHL_SCHMT_RESULT, hphl_sch_res);
WCD_MBHC_REG_READ(WCD_MBHC_HPHR_SCHMT_RESULT, hphr_sch_res);
if (!(hphl_sch_res || hphr_sch_res)) {
plug_type = MBHC_PLUG_TYPE_GND_MIC_SWAP;
pr_debug("%s: Cross connection identified\n", __func__);
} else {
pr_debug("%s: No Cross connection found\n", __func__);
}
/* Disable schmitt trigger and restore micbias */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_SCHMT_ISRC, reg1);
pr_debug("%s: leave, plug type: %d\n", __func__, plug_type);
return (plug_type == MBHC_PLUG_TYPE_GND_MIC_SWAP) ? true : false;
}
static bool wcd_is_special_headset(struct wcd_mbhc *mbhc)
{
struct snd_soc_codec *codec = mbhc->codec;
int delay = 0, rc;
bool ret = false;
u16 hs_comp_res;
bool is_spl_hs = false;
/*
* Increase micbias to 2.7V to detect headsets with
* threshold on microphone
*/
if (mbhc->mbhc_cb->mbhc_micbias_control &&
!mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic) {
pr_debug("%s: callback fn micb_ctrl_thr_mic not defined\n",
__func__);
return false;
} else if (mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic) {
rc = mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(codec,
MIC_BIAS_2, true);
if (rc) {
pr_err("%s: Micbias control for thr mic failed, rc: %d\n",
__func__, rc);
return false;
}
}
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
pr_debug("%s: special headset, start register writes\n", __func__);
WCD_MBHC_REG_READ(WCD_MBHC_HS_COMP_RESULT, hs_comp_res);
while (hs_comp_res) {
if (mbhc->hs_detect_work_stop) {
pr_debug("%s: stop requested: %d\n", __func__,
mbhc->hs_detect_work_stop);
break;
}
delay = delay + 50;
if (mbhc->mbhc_cb->mbhc_common_micb_ctrl) {
mbhc->mbhc_cb->mbhc_common_micb_ctrl(codec,
MBHC_COMMON_MICB_PRECHARGE,
true);
mbhc->mbhc_cb->mbhc_common_micb_ctrl(codec,
MBHC_COMMON_MICB_SET_VAL,
true);
}
/* Wait for 50msec for MICBIAS to settle down */
msleep(50);
if (mbhc->mbhc_cb->set_auto_zeroing)
mbhc->mbhc_cb->set_auto_zeroing(codec, true);
/* Wait for 50msec for FSM to update result values */
msleep(50);
WCD_MBHC_REG_READ(WCD_MBHC_HS_COMP_RESULT, hs_comp_res);
if (!(hs_comp_res)) {
pr_debug("%s: Special headset detected in %d msecs\n",
__func__, (delay * 2));
is_spl_hs = true;
}
if (delay == SPECIAL_HS_DETECT_TIME_MS) {
pr_debug("%s: Spl headset didnt get detect in 4 sec\n",
__func__);
break;
}
}
if (is_spl_hs) {
pr_debug("%s: Headset with threshold found\n", __func__);
mbhc->micbias_enable = true;
ret = true;
}
if (mbhc->mbhc_cb->mbhc_common_micb_ctrl)
mbhc->mbhc_cb->mbhc_common_micb_ctrl(codec,
MBHC_COMMON_MICB_PRECHARGE,
false);
if (mbhc->mbhc_cb->set_micbias_value)
mbhc->mbhc_cb->set_micbias_value(codec);
if (mbhc->mbhc_cb->set_auto_zeroing)
mbhc->mbhc_cb->set_auto_zeroing(codec, false);
if (mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic &&
!mbhc->micbias_enable)
mbhc->mbhc_cb->mbhc_micb_ctrl_thr_mic(codec, MIC_BIAS_2,
false);
pr_debug("%s: leave, micb_enable: %d\n", __func__,
mbhc->micbias_enable);
return ret;
}
static void wcd_mbhc_update_fsm_source(struct wcd_mbhc *mbhc,
enum wcd_mbhc_plug_type plug_type)
{
bool micbias2;
micbias2 = mbhc->mbhc_cb->micbias_enable_status(mbhc,
MIC_BIAS_2);
switch (plug_type) {
case MBHC_PLUG_TYPE_HEADPHONE:
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL, 3);
break;
case MBHC_PLUG_TYPE_HEADSET:
case MBHC_PLUG_TYPE_ANC_HEADPHONE:
if (!mbhc->is_hs_recording && !micbias2)
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL, 3);
break;
default:
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL, 0);
break;
};
}
static void wcd_enable_mbhc_supply(struct wcd_mbhc *mbhc,
enum wcd_mbhc_plug_type plug_type)
{
struct snd_soc_codec *codec = mbhc->codec;
/*
* Do not disable micbias if recording is going on or
* headset is inserted on the other side of the extn
* cable. If headset has been detected current source
* needs to be kept enabled for button detection to work.
* If the accessory type is invalid or unsupported, we
* dont need to enable either of them.
*/
if (det_extn_cable_en && mbhc->is_extn_cable &&
mbhc->mbhc_cb && mbhc->mbhc_cb->extn_use_mb &&
mbhc->mbhc_cb->extn_use_mb(codec)) {
if (plug_type == MBHC_PLUG_TYPE_HEADPHONE ||
plug_type == MBHC_PLUG_TYPE_HEADSET)
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
} else {
if (plug_type == MBHC_PLUG_TYPE_HEADSET) {
if (mbhc->is_hs_recording)
wcd_enable_curr_micbias(mbhc,
WCD_MBHC_EN_MB);
else if ((test_bit(WCD_MBHC_EVENT_PA_HPHL,
&mbhc->event_state)) ||
(test_bit(WCD_MBHC_EVENT_PA_HPHR,
&mbhc->event_state)))
wcd_enable_curr_micbias(mbhc,
WCD_MBHC_EN_PULLUP);
else
wcd_enable_curr_micbias(mbhc,
WCD_MBHC_EN_CS);
} else if (plug_type == MBHC_PLUG_TYPE_HEADPHONE) {
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_CS);
} else {
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_NONE);
}
}
}
static void wcd_correct_swch_plug(struct work_struct *work)
{
struct wcd_mbhc *mbhc;
struct snd_soc_codec *codec;
enum wcd_mbhc_plug_type plug_type = MBHC_PLUG_TYPE_INVALID;
unsigned long timeout;
u16 hs_comp_res, hphl_sch, mic_sch, btn_result;
bool wrk_complete = false;
int pt_gnd_mic_swap_cnt = 0;
int no_gnd_mic_swap_cnt = 0;
bool is_pa_on = false;
bool micbias2 = false;
bool micbias1 = false;
int ret = 0;
int rc;
pr_debug("%s: enter\n", __func__);
mbhc = container_of(work, struct wcd_mbhc, correct_plug_swch);
codec = mbhc->codec;
/*
* Enable micbias/pullup for detection in correct work.
* This work will get scheduled from detect_plug_type which
* will already request for pullup/micbias. If the pullup/micbias
* is handled with ref-counts by individual codec drivers, there is
* no need to enabale micbias/pullup here
*/
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
if (mbhc->current_plug == MBHC_PLUG_TYPE_GND_MIC_SWAP) {
mbhc->current_plug = MBHC_PLUG_TYPE_NONE;
goto correct_plug_type;
}
/* Enable HW FSM */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 1);
/*
* Check for any button press interrupts before starting 3-sec
* loop.
*/
rc = wait_for_completion_timeout(&mbhc->btn_press_compl,
msecs_to_jiffies(WCD_MBHC_BTN_PRESS_COMPL_TIMEOUT_MS));
WCD_MBHC_REG_READ(WCD_MBHC_BTN_RESULT, btn_result);
WCD_MBHC_REG_READ(WCD_MBHC_HS_COMP_RESULT, hs_comp_res);
if (!rc) {
pr_debug("%s No btn press interrupt\n", __func__);
if (!btn_result && !hs_comp_res)
plug_type = MBHC_PLUG_TYPE_HEADSET;
else if (!btn_result && hs_comp_res)
plug_type = MBHC_PLUG_TYPE_HIGH_HPH;
else
plug_type = MBHC_PLUG_TYPE_INVALID;
} else {
if (!btn_result && !hs_comp_res)
plug_type = MBHC_PLUG_TYPE_HEADPHONE;
else
plug_type = MBHC_PLUG_TYPE_INVALID;
}
pr_debug("%s: Valid plug found, plug type is %d\n",
__func__, plug_type);
if ((plug_type == MBHC_PLUG_TYPE_HEADSET ||
plug_type == MBHC_PLUG_TYPE_HEADPHONE) &&
(!wcd_swch_level_remove(mbhc))) {
WCD_MBHC_RSC_LOCK(mbhc);
wcd_mbhc_find_plug_and_report(mbhc, plug_type);
WCD_MBHC_RSC_UNLOCK(mbhc);
}
correct_plug_type:
timeout = jiffies + msecs_to_jiffies(HS_DETECT_PLUG_TIME_MS);
while (!time_after(jiffies, timeout)) {
if (mbhc->hs_detect_work_stop) {
pr_debug("%s: stop requested: %d\n", __func__,
mbhc->hs_detect_work_stop);
wcd_enable_curr_micbias(mbhc,
WCD_MBHC_EN_NONE);
goto exit;
}
if (mbhc->btn_press_intr) {
wcd_cancel_btn_work(mbhc);
mbhc->btn_press_intr = false;
}
/* Toggle FSM */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 1);
/* allow sometime and re-check stop requested again */
msleep(20);
if (mbhc->hs_detect_work_stop) {
pr_debug("%s: stop requested: %d\n", __func__,
mbhc->hs_detect_work_stop);
wcd_enable_curr_micbias(mbhc,
WCD_MBHC_EN_NONE);
goto exit;
}
WCD_MBHC_REG_READ(WCD_MBHC_HS_COMP_RESULT, hs_comp_res);
pr_debug("%s: hs_comp_res: %x\n", __func__, hs_comp_res);
if (mbhc->mbhc_cb->hph_pa_on_status)
is_pa_on = mbhc->mbhc_cb->hph_pa_on_status(codec);
/*
* instead of hogging system by contineous polling, wait for
* sometime and re-check stop request again.
*/
msleep(180);
if ((!hs_comp_res) && (!is_pa_on)) {
/* Check for cross connection*/
ret = wcd_check_cross_conn(mbhc);
if (ret < 0) {
continue;
} else if (ret > 0) {
pt_gnd_mic_swap_cnt++;
no_gnd_mic_swap_cnt = 0;
if (pt_gnd_mic_swap_cnt <
GND_MIC_SWAP_THRESHOLD) {
continue;
} else if (pt_gnd_mic_swap_cnt >
GND_MIC_SWAP_THRESHOLD) {
/*
* This is due to GND/MIC switch didn't
* work, Report unsupported plug.
*/
pr_debug("%s: switch didnt work\n",
__func__);
plug_type = MBHC_PLUG_TYPE_GND_MIC_SWAP;
goto report;
} else {
plug_type = MBHC_PLUG_TYPE_GND_MIC_SWAP;
}
} else {
no_gnd_mic_swap_cnt++;
pt_gnd_mic_swap_cnt = 0;
plug_type = MBHC_PLUG_TYPE_HEADSET;
if (no_gnd_mic_swap_cnt <
GND_MIC_SWAP_THRESHOLD) {
continue;
} else {
no_gnd_mic_swap_cnt = 0;
}
}
if ((pt_gnd_mic_swap_cnt == GND_MIC_SWAP_THRESHOLD) &&
(plug_type == MBHC_PLUG_TYPE_GND_MIC_SWAP)) {
/*
* if switch is toggled, check again,
* otherwise report unsupported plug
*/
if (mbhc->mbhc_cfg->swap_gnd_mic &&
mbhc->mbhc_cfg->swap_gnd_mic(codec)) {
pr_debug("%s: US_EU gpio present,flip switch\n"
, __func__);
continue;
}
}
}
WCD_MBHC_REG_READ(WCD_MBHC_HPHL_SCHMT_RESULT, hphl_sch);
WCD_MBHC_REG_READ(WCD_MBHC_MIC_SCHMT_RESULT, mic_sch);
if (hs_comp_res && !(hphl_sch || mic_sch)) {
pr_debug("%s: cable is extension cable\n", __func__);
plug_type = MBHC_PLUG_TYPE_HIGH_HPH;
wrk_complete = true;
} else {
pr_debug("%s: cable might be headset: %d\n", __func__,
plug_type);
if (!(plug_type == MBHC_PLUG_TYPE_GND_MIC_SWAP)) {
plug_type = MBHC_PLUG_TYPE_HEADSET;
/*
* Report headset only if not already reported
* and if there is not button press without
* release
*/
if (((mbhc->current_plug !=
MBHC_PLUG_TYPE_HEADSET) &&
(mbhc->current_plug !=
MBHC_PLUG_TYPE_ANC_HEADPHONE)) &&
!mbhc->btn_press_intr) {
pr_debug("%s: cable is headset\n",
__func__);
goto report;
}
}
wrk_complete = false;
}
}
if (!wrk_complete && mbhc->btn_press_intr) {
pr_debug("%s: Can be slow insertion of headphone\n", __func__);
wcd_cancel_btn_work(mbhc);
plug_type = MBHC_PLUG_TYPE_HEADPHONE;
}
/*
* If plug_tye is headset, we might have already reported either in
* detect_plug-type or in above while loop, no need to report again
*/
if (!wrk_complete && ((plug_type == MBHC_PLUG_TYPE_HEADSET) ||
(plug_type == MBHC_PLUG_TYPE_ANC_HEADPHONE))) {
pr_debug("%s: plug_type:0x%x already reported\n",
__func__, mbhc->current_plug);
goto enable_supply;
}
if (plug_type == MBHC_PLUG_TYPE_HIGH_HPH &&
(!det_extn_cable_en)) {
if (wcd_is_special_headset(mbhc)) {
pr_debug("%s: Special headset found %d\n",
__func__, plug_type);
plug_type = MBHC_PLUG_TYPE_HEADSET;
goto report;
}
}
report:
if (wcd_swch_level_remove(mbhc)) {
pr_debug("%s: Switch level is low\n", __func__);
goto exit;
}
pr_debug("%s: Valid plug found, plug type %d wrk_cmpt %d btn_intr %d\n",
__func__, plug_type, wrk_complete,
mbhc->btn_press_intr);
WCD_MBHC_RSC_LOCK(mbhc);
wcd_mbhc_find_plug_and_report(mbhc, plug_type);
WCD_MBHC_RSC_UNLOCK(mbhc);
enable_supply:
if (mbhc->mbhc_cb->mbhc_micbias_control)
wcd_mbhc_update_fsm_source(mbhc, plug_type);
else
wcd_enable_mbhc_supply(mbhc, plug_type);
exit:
if (mbhc->mbhc_cb->mbhc_micbias_control &&
!mbhc->micbias_enable)
mbhc->mbhc_cb->mbhc_micbias_control(codec, MIC_BIAS_2,
MICB_DISABLE);
if (mbhc->mbhc_cb->micbias_enable_status) {
micbias1 = mbhc->mbhc_cb->micbias_enable_status(mbhc,
MIC_BIAS_1);
micbias2 = mbhc->mbhc_cb->micbias_enable_status(mbhc,
MIC_BIAS_2);
}
if (mbhc->mbhc_cb->set_cap_mode)
mbhc->mbhc_cb->set_cap_mode(codec, micbias1, micbias2);
if (mbhc->mbhc_cb->hph_pull_down_ctrl)
mbhc->mbhc_cb->hph_pull_down_ctrl(codec, true);
mbhc->mbhc_cb->lock_sleep(mbhc, false);
pr_debug("%s: leave\n", __func__);
}
/* called under codec_resource_lock acquisition */
static void wcd_mbhc_detect_plug_type(struct wcd_mbhc *mbhc)
{
struct snd_soc_codec *codec = mbhc->codec;
enum wcd_mbhc_plug_type plug_type;
bool micbias1 = false;
int cross_conn;
int try = 0;
pr_debug("%s: enter\n", __func__);
WCD_MBHC_RSC_ASSERT_LOCKED(mbhc);
if (mbhc->mbhc_cb->hph_pull_down_ctrl)
mbhc->mbhc_cb->hph_pull_down_ctrl(codec, false);
if (mbhc->mbhc_cb->micbias_enable_status)
micbias1 = mbhc->mbhc_cb->micbias_enable_status(mbhc,
MIC_BIAS_1);
if (mbhc->mbhc_cb->set_cap_mode)
mbhc->mbhc_cb->set_cap_mode(codec, micbias1, true);
if (mbhc->mbhc_cb->mbhc_micbias_control)
mbhc->mbhc_cb->mbhc_micbias_control(codec, MIC_BIAS_2,
MICB_ENABLE);
else
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_MB);
do {
cross_conn = wcd_check_cross_conn(mbhc);
try++;
} while (try < GND_MIC_SWAP_THRESHOLD);
if (cross_conn > 0) {
pr_debug("%s: cross con found, start polling\n",
__func__);
plug_type = MBHC_PLUG_TYPE_GND_MIC_SWAP;
if (!mbhc->current_plug)
mbhc->current_plug = plug_type;
pr_debug("%s: Plug found, plug type is %d\n",
__func__, plug_type);
}
/* Re-initialize button press completion object */
reinit_completion(&mbhc->btn_press_compl);
wcd_schedule_hs_detect_plug(mbhc, &mbhc->correct_plug_swch);
pr_debug("%s: leave\n", __func__);
}
static void wcd_mbhc_swch_irq_handler(struct wcd_mbhc *mbhc)
{
bool detection_type;
bool micbias1 = false;
struct snd_soc_codec *codec = mbhc->codec;
dev_dbg(codec->dev, "%s: enter\n", __func__);
WCD_MBHC_RSC_LOCK(mbhc);
mbhc->in_swch_irq_handler = true;
/* cancel pending button press */
if (wcd_cancel_btn_work(mbhc))
pr_debug("%s: button press is canceled\n", __func__);
WCD_MBHC_REG_READ(WCD_MBHC_MECH_DETECTION_TYPE, detection_type);
/* Set the detection type appropriately */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_MECH_DETECTION_TYPE,
!detection_type);
pr_debug("%s: mbhc->current_plug: %d detection_type: %d\n", __func__,
mbhc->current_plug, detection_type);
wcd_cancel_hs_detect_plug(mbhc, &mbhc->correct_plug_swch);
if (mbhc->mbhc_cb->micbias_enable_status)
micbias1 = mbhc->mbhc_cb->micbias_enable_status(mbhc,
MIC_BIAS_1);
if ((mbhc->current_plug == MBHC_PLUG_TYPE_NONE) &&
detection_type) {
/* Make sure MASTER_BIAS_CTL is enabled */
mbhc->mbhc_cb->mbhc_bias(codec, true);
if (mbhc->mbhc_cb->mbhc_common_micb_ctrl)
mbhc->mbhc_cb->mbhc_common_micb_ctrl(codec,
MBHC_COMMON_MICB_TAIL_CURR, true);
if (!mbhc->mbhc_cfg->hs_ext_micbias &&
mbhc->mbhc_cb->micb_internal)
/*
* Enable Tx2 RBias if the headset
* is using internal micbias
*/
mbhc->mbhc_cb->micb_internal(codec, 1, true);
/* Remove micbias pulldown */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_PULLDOWN_CTRL, 0);
/* Apply trim if needed on the device */
if (mbhc->mbhc_cb->trim_btn_reg)
mbhc->mbhc_cb->trim_btn_reg(codec);
/* Enable external voltage source to micbias if present */
if (mbhc->mbhc_cb->enable_mb_source)
mbhc->mbhc_cb->enable_mb_source(codec, true);
mbhc->btn_press_intr = false;
wcd_mbhc_detect_plug_type(mbhc);
} else if ((mbhc->current_plug != MBHC_PLUG_TYPE_NONE)
&& !detection_type) {
/* Disable external voltage source to micbias if present */
if (mbhc->mbhc_cb->enable_mb_source)
mbhc->mbhc_cb->enable_mb_source(codec, false);
/* Disable HW FSM */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL, 0);
if (mbhc->mbhc_cb->mbhc_common_micb_ctrl)
mbhc->mbhc_cb->mbhc_common_micb_ctrl(codec,
MBHC_COMMON_MICB_TAIL_CURR, false);
if (mbhc->mbhc_cb->set_cap_mode)
mbhc->mbhc_cb->set_cap_mode(codec, micbias1, false);
mbhc->btn_press_intr = false;
if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADPHONE) {
wcd_mbhc_report_plug(mbhc, 0, SND_JACK_HEADPHONE);
} else if (mbhc->current_plug == MBHC_PLUG_TYPE_GND_MIC_SWAP) {
wcd_mbhc_report_plug(mbhc, 0, SND_JACK_UNSUPPORTED);
} else if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADSET) {
/* make sure to turn off Rbias */
if (mbhc->mbhc_cb->micb_internal)
mbhc->mbhc_cb->micb_internal(codec, 1, false);
/* Pulldown micbias */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_PULLDOWN_CTRL, 1);
wcd_mbhc_hs_elec_irq(mbhc, WCD_MBHC_ELEC_HS_REM,
false);
wcd_mbhc_hs_elec_irq(mbhc, WCD_MBHC_ELEC_HS_INS,
false);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_DETECTION_TYPE,
1);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_SCHMT_ISRC, 0);
wcd_mbhc_report_plug(mbhc, 0, SND_JACK_HEADSET);
} else if (mbhc->current_plug == MBHC_PLUG_TYPE_HIGH_HPH) {
mbhc->is_extn_cable = false;
wcd_mbhc_hs_elec_irq(mbhc, WCD_MBHC_ELEC_HS_REM,
false);
wcd_mbhc_hs_elec_irq(mbhc, WCD_MBHC_ELEC_HS_INS,
false);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_DETECTION_TYPE,
1);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_SCHMT_ISRC, 0);
wcd_mbhc_report_plug(mbhc, 0, SND_JACK_LINEOUT);
} else if (mbhc->current_plug == MBHC_PLUG_TYPE_ANC_HEADPHONE) {
mbhc->mbhc_cb->irq_control(codec,
mbhc->intr_ids->mbhc_hs_rem_intr,
false);
mbhc->mbhc_cb->irq_control(codec,
mbhc->intr_ids->mbhc_hs_ins_intr,
false);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_DETECTION_TYPE,
0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_SCHMT_ISRC, 0);
wcd_mbhc_report_plug(mbhc, 0, SND_JACK_ANC_HEADPHONE);
}
} else if (!detection_type) {
/* Disable external voltage source to micbias if present */
if (mbhc->mbhc_cb->enable_mb_source)
mbhc->mbhc_cb->enable_mb_source(codec, false);
/* Disable HW FSM */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_ISRC_CTL, 0);
}
mbhc->in_swch_irq_handler = false;
WCD_MBHC_RSC_UNLOCK(mbhc);
pr_debug("%s: leave\n", __func__);
}
static irqreturn_t wcd_mbhc_mech_plug_detect_irq(int irq, void *data)
{
int r = IRQ_HANDLED;
struct wcd_mbhc *mbhc = data;
pr_debug("%s: enter\n", __func__);
if (unlikely((mbhc->mbhc_cb->lock_sleep(mbhc, true)) == false)) {
pr_warn("%s: failed to hold suspend\n", __func__);
r = IRQ_NONE;
} else {
/* Call handler */
wcd_mbhc_swch_irq_handler(mbhc);
mbhc->mbhc_cb->lock_sleep(mbhc, false);
}
pr_debug("%s: leave %d\n", __func__, r);
return r;
}
static int wcd_mbhc_get_button_mask(struct wcd_mbhc *mbhc)
{
int mask = 0;
int btn;
btn = mbhc->mbhc_cb->map_btn_code_to_num(mbhc->codec);
switch (btn) {
case 0:
mask = SND_JACK_BTN_0;
break;
case 1:
mask = SND_JACK_BTN_1;
break;
case 2:
mask = SND_JACK_BTN_2;
break;
case 3:
mask = SND_JACK_BTN_3;
break;
case 4:
mask = SND_JACK_BTN_4;
break;
case 5:
mask = SND_JACK_BTN_5;
break;
case 6:
mask = SND_JACK_BTN_6;
break;
case 7:
mask = SND_JACK_BTN_7;
break;
default:
break;
}
return mask;
}
static irqreturn_t wcd_mbhc_hs_ins_irq(int irq, void *data)
{
struct wcd_mbhc *mbhc = data;
bool detection_type, hphl_sch, mic_sch;
u16 elect_result;
static u16 hphl_trigerred;
static u16 mic_trigerred;
pr_debug("%s: enter\n", __func__);
if (!mbhc->mbhc_cfg->detect_extn_cable) {
pr_debug("%s: Returning as Extension cable feature not enabled\n",
__func__);
return IRQ_HANDLED;
}
WCD_MBHC_RSC_LOCK(mbhc);
WCD_MBHC_REG_READ(WCD_MBHC_ELECT_DETECTION_TYPE, detection_type);
WCD_MBHC_REG_READ(WCD_MBHC_ELECT_RESULT, elect_result);
pr_debug("%s: detection_type %d, elect_result %x\n", __func__,
detection_type, elect_result);
if (detection_type) {
/* check if both Left and MIC Schmitt triggers are triggered */
WCD_MBHC_REG_READ(WCD_MBHC_HPHL_SCHMT_RESULT, hphl_sch);
WCD_MBHC_REG_READ(WCD_MBHC_MIC_SCHMT_RESULT, mic_sch);
if (hphl_sch && mic_sch) {
/* Go for plug type determination */
pr_debug("%s: Go for plug type determination\n",
__func__);
goto determine_plug;
} else {
if (mic_sch) {
mic_trigerred++;
pr_debug("%s: Insertion MIC trigerred %d\n",
__func__, mic_trigerred);
WCD_MBHC_REG_UPDATE_BITS(
WCD_MBHC_ELECT_SCHMT_ISRC,
0);
msleep(20);
WCD_MBHC_REG_UPDATE_BITS(
WCD_MBHC_ELECT_SCHMT_ISRC,
1);
}
if (hphl_sch) {
hphl_trigerred++;
pr_debug("%s: Insertion HPHL trigerred %d\n",
__func__, hphl_trigerred);
}
if (mic_trigerred && hphl_trigerred) {
/* Go for plug type determination */
pr_debug("%s: Go for plug type determination\n",
__func__);
goto determine_plug;
}
}
}
WCD_MBHC_RSC_UNLOCK(mbhc);
pr_debug("%s: leave\n", __func__);
return IRQ_HANDLED;
determine_plug:
/*
* Disable HPHL trigger and MIC Schmitt triggers.
* Setup for insertion detection.
*/
pr_debug("%s: Disable insertion interrupt\n", __func__);
wcd_mbhc_hs_elec_irq(mbhc, WCD_MBHC_ELEC_HS_INS,
false);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_SCHMT_ISRC, 0);
hphl_trigerred = 0;
mic_trigerred = 0;
mbhc->is_extn_cable = true;
mbhc->btn_press_intr = false;
wcd_mbhc_detect_plug_type(mbhc);
WCD_MBHC_RSC_UNLOCK(mbhc);
pr_debug("%s: leave\n", __func__);
return IRQ_HANDLED;
}
static irqreturn_t wcd_mbhc_hs_rem_irq(int irq, void *data)
{
struct wcd_mbhc *mbhc = data;
u8 hs_comp_result, hphl_sch, mic_sch;
static u16 hphl_trigerred;
static u16 mic_trigerred;
unsigned long timeout;
bool removed = true;
int retry = 0;
pr_debug("%s: enter\n", __func__);
WCD_MBHC_RSC_LOCK(mbhc);
timeout = jiffies +
msecs_to_jiffies(WCD_FAKE_REMOVAL_MIN_PERIOD_MS);
do {
retry++;
/*
* read the result register every 10ms to look for
* any change in HS_COMP_RESULT bit
*/
usleep_range(10000, 10100);
WCD_MBHC_REG_READ(WCD_MBHC_HS_COMP_RESULT, hs_comp_result);
pr_debug("%s: Check result reg for fake removal: hs_comp_res %x\n",
__func__, hs_comp_result);
if ((!hs_comp_result) &&
retry > FAKE_REM_RETRY_ATTEMPTS) {
removed = false;
break;
}
} while (!time_after(jiffies, timeout));
pr_debug("%s: headset %s actually removed\n", __func__,
removed ? "" : "not ");
WCD_MBHC_REG_READ(WCD_MBHC_HPHL_SCHMT_RESULT, hphl_sch);
WCD_MBHC_REG_READ(WCD_MBHC_MIC_SCHMT_RESULT, mic_sch);
WCD_MBHC_REG_READ(WCD_MBHC_HS_COMP_RESULT, hs_comp_result);
if (removed) {
if (!(hphl_sch && mic_sch && hs_comp_result)) {
/*
* extension cable is still plugged in
* report it as LINEOUT device
*/
goto report_unplug;
} else {
if (!mic_sch) {
mic_trigerred++;
pr_debug("%s: Removal MIC trigerred %d\n",
__func__, mic_trigerred);
}
if (!hphl_sch) {
hphl_trigerred++;
pr_debug("%s: Removal HPHL trigerred %d\n",
__func__, hphl_trigerred);
}
if (mic_trigerred && hphl_trigerred) {
/*
* extension cable is still plugged in
* report it as LINEOUT device
*/
goto report_unplug;
}
}
}
WCD_MBHC_RSC_UNLOCK(mbhc);
pr_debug("%s: leave\n", __func__);
return IRQ_HANDLED;
report_unplug:
/* cancel pending button press */
if (wcd_cancel_btn_work(mbhc))
pr_debug("%s: button press is canceled\n", __func__);
/* cancel correct work function */
wcd_cancel_hs_detect_plug(mbhc, &mbhc->correct_plug_swch);
pr_debug("%s: Report extension cable\n", __func__);
wcd_mbhc_report_plug(mbhc, 1, SND_JACK_LINEOUT);
/*
* If PA is enabled HPHL schmitt trigger can
* be unreliable, make sure to disable it
*/
if (test_bit(WCD_MBHC_EVENT_PA_HPHL,
&mbhc->event_state))
wcd_mbhc_set_and_turnoff_hph_padac(mbhc);
/*
* Disable HPHL trigger and MIC Schmitt triggers.
* Setup for insertion detection.
*/
wcd_mbhc_hs_elec_irq(mbhc, WCD_MBHC_ELEC_HS_REM,
false);
wcd_enable_curr_micbias(mbhc, WCD_MBHC_EN_NONE);
/* Disable HW FSM */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_FSM_EN, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_SCHMT_ISRC, 3);
/* Set the detection type appropriately */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_ELECT_DETECTION_TYPE, 1);
wcd_mbhc_hs_elec_irq(mbhc, WCD_MBHC_ELEC_HS_INS,
true);
hphl_trigerred = 0;
mic_trigerred = 0;
WCD_MBHC_RSC_UNLOCK(mbhc);
pr_debug("%s: leave\n", __func__);
return IRQ_HANDLED;
}
static void wcd_btn_lpress_fn(struct work_struct *work)
{
struct delayed_work *dwork;
struct wcd_mbhc *mbhc;
s16 btn_result;
pr_debug("%s: Enter\n", __func__);
dwork = to_delayed_work(work);
mbhc = container_of(dwork, struct wcd_mbhc, mbhc_btn_dwork);
WCD_MBHC_REG_READ(WCD_MBHC_BTN_RESULT, btn_result);
if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADSET) {
pr_debug("%s: Reporting long button press event, btn_result: %d\n",
__func__, btn_result);
wcd_mbhc_jack_report(mbhc, &mbhc->button_jack,
mbhc->buttons_pressed, mbhc->buttons_pressed);
}
pr_debug("%s: leave\n", __func__);
mbhc->mbhc_cb->lock_sleep(mbhc, false);
}
static bool wcd_mbhc_fw_validate(const void *data, size_t size)
{
u32 cfg_offset;
struct wcd_mbhc_btn_detect_cfg *btn_cfg;
struct firmware_cal fw;
fw.data = (void *)data;
fw.size = size;
if (fw.size < WCD_MBHC_CAL_MIN_SIZE)
return false;
/*
* Previous check guarantees that there is enough fw data up
* to num_btn
*/
btn_cfg = WCD_MBHC_CAL_BTN_DET_PTR(fw.data);
cfg_offset = (u32) ((void *) btn_cfg - (void *) fw.data);
if (fw.size < (cfg_offset + WCD_MBHC_CAL_BTN_SZ(btn_cfg)))
return false;
return true;
}
static irqreturn_t wcd_mbhc_btn_press_handler(int irq, void *data)
{
struct wcd_mbhc *mbhc = data;
int mask;
unsigned long msec_val;
pr_debug("%s: enter\n", __func__);
complete(&mbhc->btn_press_compl);
WCD_MBHC_RSC_LOCK(mbhc);
/* send event to sw intr handler*/
mbhc->is_btn_press = true;
wcd_cancel_btn_work(mbhc);
if (wcd_swch_level_remove(mbhc)) {
pr_debug("%s: Switch level is low ", __func__);
goto done;
}
mbhc->btn_press_intr = true;
msec_val = jiffies_to_msecs(jiffies - mbhc->jiffies_atreport);
pr_debug("%s: msec_val = %ld\n", __func__, msec_val);
if (msec_val < MBHC_BUTTON_PRESS_THRESHOLD_MIN) {
pr_debug("%s: Too short, ignore button press\n", __func__);
goto done;
}
/* If switch interrupt already kicked in, ignore button press */
if (mbhc->in_swch_irq_handler) {
pr_debug("%s: Swtich level changed, ignore button press\n",
__func__);
goto done;
}
if (mbhc->current_plug != MBHC_PLUG_TYPE_HEADSET) {
pr_debug("%s: Plug isn't headset, ignore button press\n",
__func__);
goto done;
}
mask = wcd_mbhc_get_button_mask(mbhc);
mbhc->buttons_pressed |= mask;
mbhc->mbhc_cb->lock_sleep(mbhc, true);
if (schedule_delayed_work(&mbhc->mbhc_btn_dwork,
msecs_to_jiffies(400)) == 0) {
WARN(1, "Button pressed twice without release event\n");
mbhc->mbhc_cb->lock_sleep(mbhc, false);
}
done:
pr_debug("%s: leave\n", __func__);
WCD_MBHC_RSC_UNLOCK(mbhc);
return IRQ_HANDLED;
}
static irqreturn_t wcd_mbhc_release_handler(int irq, void *data)
{
struct wcd_mbhc *mbhc = data;
int ret;
pr_debug("%s: enter\n", __func__);
WCD_MBHC_RSC_LOCK(mbhc);
if (wcd_swch_level_remove(mbhc)) {
pr_debug("%s: Switch level is low ", __func__);
goto exit;
}
if (mbhc->btn_press_intr) {
mbhc->btn_press_intr = false;
} else {
pr_debug("%s: This release is for fake btn press\n", __func__);
goto exit;
}
/*
* If current plug is headphone then there is no chance to
* get btn release interrupt, so connected cable should be
* headset not headphone.
*/
if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADPHONE) {
wcd_mbhc_find_plug_and_report(mbhc, MBHC_PLUG_TYPE_HEADSET);
goto exit;
}
if (mbhc->buttons_pressed & WCD_MBHC_JACK_BUTTON_MASK) {
ret = wcd_cancel_btn_work(mbhc);
if (ret == 0) {
pr_debug("%s: Reporting long button release event\n",
__func__);
wcd_mbhc_jack_report(mbhc, &mbhc->button_jack,
0, mbhc->buttons_pressed);
} else {
if (mbhc->in_swch_irq_handler) {
pr_debug("%s: Switch irq kicked in, ignore\n",
__func__);
} else {
pr_debug("%s: Reporting btn press\n",
__func__);
wcd_mbhc_jack_report(mbhc,
&mbhc->button_jack,
mbhc->buttons_pressed,
mbhc->buttons_pressed);
pr_debug("%s: Reporting btn release\n",
__func__);
wcd_mbhc_jack_report(mbhc,
&mbhc->button_jack,
0, mbhc->buttons_pressed);
}
}
mbhc->buttons_pressed &= ~WCD_MBHC_JACK_BUTTON_MASK;
}
exit:
pr_debug("%s: leave\n", __func__);
WCD_MBHC_RSC_UNLOCK(mbhc);
return IRQ_HANDLED;
}
static irqreturn_t wcd_mbhc_hphl_ocp_irq(int irq, void *data)
{
struct wcd_mbhc *mbhc = data;
pr_debug("%s: received HPHL OCP irq\n", __func__);
if (mbhc) {
if ((mbhc->hphlocp_cnt < OCP_ATTEMPT) &&
(!mbhc->hphrocp_cnt)) {
pr_debug("%s: retry\n", __func__);
mbhc->hphlocp_cnt++;
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_OCP_FSM_EN, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_OCP_FSM_EN, 1);
} else {
mbhc->mbhc_cb->irq_control(mbhc->codec,
mbhc->intr_ids->hph_left_ocp,
false);
mbhc->hph_status |= SND_JACK_OC_HPHL;
wcd_mbhc_jack_report(mbhc, &mbhc->headset_jack,
mbhc->hph_status,
WCD_MBHC_JACK_MASK);
}
} else {
pr_err("%s: Bad wcd9xxx_spmi private data\n", __func__);
}
return IRQ_HANDLED;
}
static irqreturn_t wcd_mbhc_hphr_ocp_irq(int irq, void *data)
{
struct wcd_mbhc *mbhc = data;
pr_debug("%s: received HPHR OCP irq\n", __func__);
if ((mbhc->hphrocp_cnt < OCP_ATTEMPT) &&
(!mbhc->hphlocp_cnt)) {
pr_debug("%s: retry\n", __func__);
mbhc->hphrocp_cnt++;
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_OCP_FSM_EN, 0);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_OCP_FSM_EN, 1);
} else {
mbhc->mbhc_cb->irq_control(mbhc->codec,
mbhc->intr_ids->hph_right_ocp,
false);
mbhc->hph_status |= SND_JACK_OC_HPHR;
wcd_mbhc_jack_report(mbhc, &mbhc->headset_jack,
mbhc->hph_status, WCD_MBHC_JACK_MASK);
}
return IRQ_HANDLED;
}
static void wcd_mbhc_moisture_config(struct wcd_mbhc *mbhc)
{
if (mbhc->mbhc_cfg->moist_cfg.m_vref_ctl == V_OFF)
return;
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_MOISTURE_VREF,
mbhc->mbhc_cfg->moist_cfg.m_vref_ctl);
if (mbhc->mbhc_cb->hph_pull_up_control)
mbhc->mbhc_cb->hph_pull_up_control(mbhc->codec,
mbhc->mbhc_cfg->moist_cfg.m_iref_ctl);
}
static int wcd_mbhc_initialise(struct wcd_mbhc *mbhc)
{
int ret = 0;
struct snd_soc_codec *codec = mbhc->codec;
pr_debug("%s: enter\n", __func__);
WCD_MBHC_RSC_LOCK(mbhc);
/* enable HS detection */
if (mbhc->mbhc_cb->hph_pull_up_control)
mbhc->mbhc_cb->hph_pull_up_control(codec, I_DEFAULT);
else
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_HS_L_DET_PULL_UP_CTRL, 3);
wcd_mbhc_moisture_config(mbhc);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_HPHL_PLUG_TYPE, mbhc->hphl_swh);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_GND_PLUG_TYPE, mbhc->gnd_swh);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_SW_HPH_LP_100K_TO_GND, 1);
if (mbhc->mbhc_cfg->gnd_det_en && mbhc->mbhc_cb->mbhc_gnd_det_ctrl)
mbhc->mbhc_cb->mbhc_gnd_det_ctrl(codec, true);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_HS_L_DET_PULL_UP_COMP_CTRL, 1);
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_L_DET_EN, 1);
/* Insertion debounce set to 96ms */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_INSREM_DBNC, 6);
/* Button Debounce set to 16ms */
WCD_MBHC_REG_UPDATE_BITS(WCD_MBHC_BTN_DBNC, 2);
/* Enable micbias ramp */
if (mbhc->mbhc_cb->mbhc_micb_ramp_control)
mbhc->mbhc_cb->mbhc_micb_ramp_control(codec, true);
/* enable bias */
mbhc->mbhc_cb->mbhc_bias(codec, true);
/* enable MBHC clock */
if (mbhc->mbhc_cb->clk_setup)
mbhc->mbhc_cb->clk_setup(codec, true);
/* program HS_VREF value */
wcd_program_hs_vref(mbhc);
wcd_program_btn_threshold(mbhc, false);
INIT_WORK(&mbhc->correct_plug_swch, wcd_correct_swch_plug);
init_completion(&mbhc->btn_press_compl);
WCD_MBHC_RSC_UNLOCK(mbhc);
pr_debug("%s: leave\n", __func__);
return ret;
}
static void wcd_mbhc_fw_read(struct work_struct *work)
{
struct delayed_work *dwork;
struct wcd_mbhc *mbhc;
struct snd_soc_codec *codec;
const struct firmware *fw;
struct firmware_cal *fw_data = NULL;
int ret = -1, retry = 0;
bool use_default_cal = false;
dwork = to_delayed_work(work);
mbhc = container_of(dwork, struct wcd_mbhc, mbhc_firmware_dwork);
codec = mbhc->codec;
while (retry < FW_READ_ATTEMPTS) {
retry++;
pr_debug("%s:Attempt %d to request MBHC firmware\n",
__func__, retry);
if (mbhc->mbhc_cb->get_hwdep_fw_cal)
fw_data = mbhc->mbhc_cb->get_hwdep_fw_cal(codec,
WCD9XXX_MBHC_CAL);
if (!fw_data)
ret = request_firmware(&fw, "wcd9320/wcd9320_mbhc.bin",
codec->dev);
/*
* if request_firmware and hwdep cal both fail then
* sleep for 4sec for the userspace to send data to kernel
* retry for few times before bailing out
*/
if ((ret != 0) && !fw_data) {
usleep_range(FW_READ_TIMEOUT, FW_READ_TIMEOUT +
WCD_MBHC_USLEEP_RANGE_MARGIN_US);
} else {
pr_debug("%s: MBHC Firmware read succesful\n",
__func__);
break;
}
}
if (!fw_data)
pr_debug("%s: using request_firmware\n", __func__);
else
pr_debug("%s: using hwdep cal\n", __func__);
if (ret != 0 && !fw_data) {
pr_err("%s: Cannot load MBHC firmware use default cal\n",
__func__);
use_default_cal = true;
}
if (!use_default_cal) {
const void *data;
size_t size;
if (fw_data) {
data = fw_data->data;
size = fw_data->size;
} else {
data = fw->data;
size = fw->size;
}
if (wcd_mbhc_fw_validate(data, size) == false) {
pr_err("%s: Invalid MBHC cal data size use default cal\n",
__func__);
if (!fw_data)
release_firmware(fw);
} else {
if (fw_data) {
mbhc->mbhc_cfg->calibration =
(void *)fw_data->data;
mbhc->mbhc_cal = fw_data;
} else {
mbhc->mbhc_cfg->calibration =
(void *)fw->data;
mbhc->mbhc_fw = fw;
}
}
}
(void) wcd_mbhc_initialise(mbhc);
}
int wcd_mbhc_set_keycode(struct wcd_mbhc *mbhc)
{
enum snd_jack_types type;
int i, ret, result = 0;
int *btn_key_code;
btn_key_code = mbhc->mbhc_cfg->key_code;
for (i = 0 ; i < WCD_MBHC_KEYCODE_NUM ; i++) {
if (btn_key_code[i] != 0) {
switch (i) {
case 0:
type = SND_JACK_BTN_0;
break;
case 1:
type = SND_JACK_BTN_1;
break;
case 2:
type = SND_JACK_BTN_2;
break;
case 3:
type = SND_JACK_BTN_3;
break;
case 4:
type = SND_JACK_BTN_4;
break;
case 5:
type = SND_JACK_BTN_5;
break;
case 6:
type = SND_JACK_BTN_6;
break;
case 7:
type = SND_JACK_BTN_7;
break;
default:
WARN_ONCE(1, "Wrong button number:%d\n", i);
result = -1;
return result;
}
ret = snd_jack_set_key(mbhc->button_jack.jack,
type,
btn_key_code[i]);
if (ret) {
pr_err("%s: Failed to set code for %d\n",
__func__, btn_key_code[i]);
result = -1;
return result;
}
input_set_capability(
mbhc->button_jack.jack->input_dev,
EV_KEY, btn_key_code[i]);
pr_debug("%s: set btn%d key code:%d\n", __func__,
i, btn_key_code[i]);
}
}
if (btn_key_code[0])
mbhc->is_btn_already_regd = true;
return result;
}
int wcd_mbhc_start(struct wcd_mbhc *mbhc,
struct wcd_mbhc_config *mbhc_cfg)
{
int rc = 0;
pr_debug("%s: enter\n", __func__);
/* update the mbhc config */
mbhc->mbhc_cfg = mbhc_cfg;
/* Set btn key code */
if ((!mbhc->is_btn_already_regd) && wcd_mbhc_set_keycode(mbhc))
pr_err("Set btn key code error!!!\n");
if (!mbhc->mbhc_cfg->read_fw_bin ||
(mbhc->mbhc_cfg->read_fw_bin && mbhc->mbhc_fw) ||
(mbhc->mbhc_cfg->read_fw_bin && mbhc->mbhc_cal)) {
rc = wcd_mbhc_initialise(mbhc);
} else {
if (!mbhc->mbhc_fw || !mbhc->mbhc_cal)
schedule_delayed_work(&mbhc->mbhc_firmware_dwork,
usecs_to_jiffies(FW_READ_TIMEOUT));
else
pr_err("%s: Skipping to read mbhc fw, 0x%p %p\n",
__func__, mbhc->mbhc_fw, mbhc->mbhc_cal);
}
pr_debug("%s: leave %d\n", __func__, rc);
return rc;
}
EXPORT_SYMBOL(wcd_mbhc_start);
void wcd_mbhc_stop(struct wcd_mbhc *mbhc)
{
pr_debug("%s: enter\n", __func__);
if (mbhc->current_plug != MBHC_PLUG_TYPE_NONE) {
if (mbhc->mbhc_cb && mbhc->mbhc_cb->skip_imped_detect)
mbhc->mbhc_cb->skip_imped_detect(mbhc->codec);
}
mbhc->current_plug = MBHC_PLUG_TYPE_NONE;
mbhc->hph_status = 0;
mbhc->mbhc_cb->irq_control(mbhc->codec, mbhc->intr_ids->hph_left_ocp,
false);
mbhc->mbhc_cb->irq_control(mbhc->codec, mbhc->intr_ids->hph_right_ocp,
false);
if (mbhc->mbhc_fw || mbhc->mbhc_cal) {
cancel_delayed_work_sync(&mbhc->mbhc_firmware_dwork);
if (!mbhc->mbhc_cal)
release_firmware(mbhc->mbhc_fw);
mbhc->mbhc_fw = NULL;
mbhc->mbhc_cal = NULL;
}
pr_debug("%s: leave\n", __func__);
}
EXPORT_SYMBOL(wcd_mbhc_stop);
/*
* wcd_mbhc_init : initialize MBHC internal structures.
*
* NOTE: mbhc->mbhc_cfg is not YET configure so shouldn't be used
*/
int wcd_mbhc_init(struct wcd_mbhc *mbhc, struct snd_soc_codec *codec,
const struct wcd_mbhc_cb *mbhc_cb,
const struct wcd_mbhc_intr *mbhc_cdc_intr_ids,
struct wcd_mbhc_register *wcd_mbhc_regs,
bool impedance_det_en)
{
int ret = 0;
int hph_swh = 0;
int gnd_swh = 0;
struct snd_soc_card *card = codec->component.card;
const char *hph_switch = "qcom,msm-mbhc-hphl-swh";
const char *gnd_switch = "qcom,msm-mbhc-gnd-swh";
pr_debug("%s: enter\n", __func__);
ret = of_property_read_u32(card->dev->of_node, hph_switch, &hph_swh);
if (ret) {
dev_err(card->dev,
"%s: missing %s in dt node\n", __func__, hph_switch);
goto err;
}
ret = of_property_read_u32(card->dev->of_node, gnd_switch, &gnd_swh);
if (ret) {
dev_err(card->dev,
"%s: missing %s in dt node\n", __func__, gnd_switch);
goto err;
}
mbhc->in_swch_irq_handler = false;
mbhc->current_plug = MBHC_PLUG_TYPE_NONE;
mbhc->is_btn_press = false;
mbhc->codec = codec;
mbhc->intr_ids = mbhc_cdc_intr_ids;
mbhc->impedance_detect = impedance_det_en;
mbhc->hphl_swh = hph_swh;
mbhc->gnd_swh = gnd_swh;
mbhc->micbias_enable = false;
mbhc->mbhc_cb = mbhc_cb;
mbhc->btn_press_intr = false;
mbhc->is_hs_recording = false;
mbhc->is_extn_cable = false;
mbhc->hph_type = WCD_MBHC_HPH_NONE;
mbhc->wcd_mbhc_regs = wcd_mbhc_regs;
if (mbhc->intr_ids == NULL) {
pr_err("%s: Interrupt mapping not provided\n", __func__);
return -EINVAL;
}
if (!mbhc->wcd_mbhc_regs) {
dev_err(codec->dev, "%s: mbhc registers are not defined\n",
__func__);
return -EINVAL;
}
/* Check if IRQ and other required callbacks are defined or not */
if (!mbhc_cb || !mbhc_cb->request_irq || !mbhc_cb->irq_control ||
!mbhc_cb->free_irq || !mbhc_cb->map_btn_code_to_num ||
!mbhc_cb->lock_sleep || !mbhc_cb->mbhc_bias ||
!mbhc_cb->set_btn_thr) {
dev_err(codec->dev, "%s: required mbhc callbacks are not defined\n",
__func__);
return -EINVAL;
}
if (mbhc->headset_jack.jack == NULL) {
ret = snd_soc_jack_new(codec, "Headset Jack",
WCD_MBHC_JACK_MASK, &mbhc->headset_jack);
if (ret) {
pr_err("%s: Failed to create new jack\n", __func__);
return ret;
}
ret = snd_soc_jack_new(codec, "Button Jack",
WCD_MBHC_JACK_BUTTON_MASK,
&mbhc->button_jack);
if (ret) {
pr_err("Failed to create new jack\n");
return ret;
}
ret = snd_jack_set_key(mbhc->button_jack.jack,
SND_JACK_BTN_0,
KEY_MEDIA);
if (ret) {
pr_err("%s: Failed to set code for btn-0\n",
__func__);
return ret;
}
set_bit(INPUT_PROP_NO_DUMMY_RELEASE,
mbhc->button_jack.jack->input_dev->propbit);
INIT_DELAYED_WORK(&mbhc->mbhc_firmware_dwork,
wcd_mbhc_fw_read);
INIT_DELAYED_WORK(&mbhc->mbhc_btn_dwork, wcd_btn_lpress_fn);
}
mutex_init(&mbhc->hphl_pa_lock);
mutex_init(&mbhc->hphr_pa_lock);
/* Register event notifier */
mbhc->nblock.notifier_call = wcd_event_notify;
if (mbhc->mbhc_cb->register_notifier) {
ret = mbhc->mbhc_cb->register_notifier(codec, &mbhc->nblock,
true);
if (ret) {
pr_err("%s: Failed to register notifier %d\n",
__func__, ret);
return ret;
}
}
init_waitqueue_head(&mbhc->wait_btn_press);
mutex_init(&mbhc->codec_resource_lock);
ret = mbhc->mbhc_cb->request_irq(codec, mbhc->intr_ids->mbhc_sw_intr,
wcd_mbhc_mech_plug_detect_irq,
"mbhc sw intr", mbhc);
if (ret) {
pr_err("%s: Failed to request irq %d, ret = %d\n", __func__,
mbhc->intr_ids->mbhc_sw_intr, ret);
goto err_mbhc_sw_irq;
}
ret = mbhc->mbhc_cb->request_irq(codec,
mbhc->intr_ids->mbhc_btn_press_intr,
wcd_mbhc_btn_press_handler,
"Button Press detect",
mbhc);
if (ret) {
pr_err("%s: Failed to request irq %d\n", __func__,
mbhc->intr_ids->mbhc_btn_press_intr);
goto err_btn_press_irq;
}
ret = mbhc->mbhc_cb->request_irq(codec,
mbhc->intr_ids->mbhc_btn_release_intr,
wcd_mbhc_release_handler,
"Button Release detect", mbhc);
if (ret) {
pr_err("%s: Failed to request irq %d\n", __func__,
mbhc->intr_ids->mbhc_btn_release_intr);
goto err_btn_release_irq;
}
ret = mbhc->mbhc_cb->request_irq(codec,
mbhc->intr_ids->mbhc_hs_ins_intr,
wcd_mbhc_hs_ins_irq,
"Elect Insert", mbhc);
if (ret) {
pr_err("%s: Failed to request irq %d\n", __func__,
mbhc->intr_ids->mbhc_hs_ins_intr);
goto err_mbhc_hs_ins_irq;
}
mbhc->mbhc_cb->irq_control(codec, mbhc->intr_ids->mbhc_hs_ins_intr,
false);
clear_bit(WCD_MBHC_ELEC_HS_INS, &mbhc->intr_status);
ret = mbhc->mbhc_cb->request_irq(codec,
mbhc->intr_ids->mbhc_hs_rem_intr,
wcd_mbhc_hs_rem_irq,
"Elect Remove", mbhc);
if (ret) {
pr_err("%s: Failed to request irq %d\n", __func__,
mbhc->intr_ids->mbhc_hs_rem_intr);
goto err_mbhc_hs_rem_irq;
}
mbhc->mbhc_cb->irq_control(codec, mbhc->intr_ids->mbhc_hs_rem_intr,
false);
clear_bit(WCD_MBHC_ELEC_HS_REM, &mbhc->intr_status);
ret = mbhc->mbhc_cb->request_irq(codec, mbhc->intr_ids->hph_left_ocp,
wcd_mbhc_hphl_ocp_irq, "HPH_L OCP detect",
mbhc);
if (ret) {
pr_err("%s: Failed to request irq %d\n", __func__,
mbhc->intr_ids->hph_left_ocp);
goto err_hphl_ocp_irq;
}
ret = mbhc->mbhc_cb->request_irq(codec, mbhc->intr_ids->hph_right_ocp,
wcd_mbhc_hphr_ocp_irq, "HPH_R OCP detect",
mbhc);
if (ret) {
pr_err("%s: Failed to request irq %d\n", __func__,
mbhc->intr_ids->hph_right_ocp);
goto err_hphr_ocp_irq;
}
pr_debug("%s: leave ret %d\n", __func__, ret);
return ret;
err_hphr_ocp_irq:
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->hph_left_ocp, mbhc);
err_hphl_ocp_irq:
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->mbhc_hs_rem_intr, mbhc);
err_mbhc_hs_rem_irq:
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->mbhc_hs_ins_intr, mbhc);
err_mbhc_hs_ins_irq:
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->mbhc_btn_release_intr,
mbhc);
err_btn_release_irq:
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->mbhc_btn_press_intr,
mbhc);
err_btn_press_irq:
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->mbhc_sw_intr, mbhc);
err_mbhc_sw_irq:
if (mbhc->mbhc_cb->register_notifier)
mbhc->mbhc_cb->register_notifier(codec, &mbhc->nblock, false);
mutex_destroy(&mbhc->codec_resource_lock);
err:
pr_debug("%s: leave ret %d\n", __func__, ret);
return ret;
}
EXPORT_SYMBOL(wcd_mbhc_init);
void wcd_mbhc_deinit(struct wcd_mbhc *mbhc)
{
struct snd_soc_codec *codec = mbhc->codec;
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->mbhc_sw_intr, mbhc);
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->mbhc_btn_press_intr,
mbhc);
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->mbhc_btn_release_intr,
mbhc);
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->mbhc_hs_ins_intr, mbhc);
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->mbhc_hs_rem_intr, mbhc);
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->hph_left_ocp, mbhc);
mbhc->mbhc_cb->free_irq(codec, mbhc->intr_ids->hph_right_ocp, mbhc);
if (mbhc->mbhc_cb && mbhc->mbhc_cb->register_notifier)
mbhc->mbhc_cb->register_notifier(codec, &mbhc->nblock, false);
mutex_destroy(&mbhc->codec_resource_lock);
}
EXPORT_SYMBOL(wcd_mbhc_deinit);
MODULE_DESCRIPTION("wcd MBHC v2 module");
MODULE_LICENSE("GPL v2");
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