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android_kernel_samsung_msm8976/sound/soc/codecs/wcd-mbhc-v2.c

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/* Copyright (c) 2014, 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/mfd/wcd9xxx/pdata.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include <sound/jack.h>
#include "wcd-mbhc-v2.h"
#include "wcd9xxx-mbhc.h"
#include "msm8x16_wcd_registers.h"
#include "msm8916-wcd-irq.h"
#define WCD_MBHC_JACK_MASK (SND_JACK_HEADSET | SND_JACK_OC_HPHL | \
SND_JACK_OC_HPHR | SND_JACK_LINEOUT | \
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)
#define OCP_ATTEMPT 1
#define HS_DETECT_PLUG_TIME_MS (3 * 1000)
#define MBHC_BUTTON_PRESS_THRESHOLD_MIN 250
#define WCD_MBHC_RSC_LOCK(mbhc) \
{ \
pr_debug("%s: Acquiring BCL\n", __func__); \
mutex_lock(&mbhc->codec_resource_lock); \
pr_debug("%s: Acquiring BCL done\n", __func__); \
}
#define WCD_MBHC_RSC_UNLOCK(mbhc) \
{ \
pr_debug("%s: Release BCL\n", __func__); \
mutex_unlock(&mbhc->codec_resource_lock); \
}
#define WCD_MBHC_RSC_ASSERT_LOCKED(mbhc) \
{ \
WARN_ONCE(!mutex_is_locked(&mbhc->codec_resource_lock), \
"%s: BCL should have acquired\n", __func__); \
}
static void wcd_program_btn_threshold(const struct wcd_mbhc *mbhc)
{
struct wcd_mbhc_btn_detect_cfg *btn_det;
struct snd_soc_codec *codec = mbhc->codec;
struct snd_soc_card *card = codec->card;
u16 i;
u32 course, fine, reg_val;
u16 reg_addr = MSM8X16_WCD_A_ANALOG_MBHC_BTN0_ZDETL_CTL;
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);
for (i = 0; i < btn_det->num_btn; i++) {
course = (btn_det->_v_btn_high[i] / 100);
fine = ((btn_det->_v_btn_high[i] % 100) / 12);
reg_val = (course << 5) | (fine << 2);
snd_soc_update_bits(codec, reg_addr, 0xFC, reg_val);
pr_debug("%s: course: %d fine: %d reg_addr: %x reg_val: %x\n",
__func__, course, fine, reg_addr, reg_val);
reg_addr++;
}
}
static bool wcd_swch_level_remove(struct wcd_mbhc *mbhc)
{
u16 result2;
struct snd_soc_codec *codec = mbhc->codec;
result2 = snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_ZDET_ELECT_RESULT);
return (result2 & 0x10) ? 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;
wcd9xxx_spmi_lock_sleep();
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__);
wcd9xxx_spmi_unlock_sleep();
}
WCD_MBHC_RSC_LOCK(mbhc);
}
static void wcd_mbhc_jack_report(struct wcd_mbhc *mbhc,
struct snd_soc_jack *jack, int status, int mask)
{
snd_soc_jack_report_no_dapm(jack, status, mask);
}
static void __hphocp_off_report(struct wcd_mbhc *mbhc, u32 jack_status,
int irq)
{
struct snd_soc_codec *codec;
pr_debug("%s: clear ocp status %x\n", __func__, jack_status);
codec = mbhc->codec;
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);
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_RX_COM_OCP_CTL,
0x10, 0x00);
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_RX_COM_OCP_CTL,
0x10, 0x10);
/*
* 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;
wcd9xxx_spmi_enable_irq(irq);
}
}
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_mbhc_clr_and_turnon_hph_padac(struct wcd_mbhc *mbhc)
{
bool pa_turned_on = false;
u8 wg_time;
struct snd_soc_codec *codec = mbhc->codec;
wg_time = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_RX_HPH_CNP_WG_TIME);
wg_time += 1;
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__);
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_RX_HPH_CNP_EN,
0x10, 0x10);
pa_turned_on = true;
}
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__);
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_RX_HPH_CNP_EN,
0x20, 0x20);
pa_turned_on = true;
}
if (pa_turned_on) {
pr_debug("%s: PA was turned off 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 snd_soc_codec *codec)
{
u8 hph_reg_val = 0;
hph_reg_val = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_RX_HPH_CNP_EN);
return (hph_reg_val & 0x30) ? true : false;
}
static void wcd_mbhc_set_and_turnoff_hph_padac(struct wcd_mbhc *mbhc)
{
u8 wg_time;
struct snd_soc_codec *codec = mbhc->codec;
wg_time = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_RX_HPH_CNP_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(codec)) {
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__);
}
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_RX_HPH_CNP_EN,
0x30, 0x00);
usleep_range(wg_time * 1000, wg_time * 1000 + 50);
}
static void wcd_mbhc_calc_impedance(struct wcd_mbhc *mbhc, uint32_t *zl,
uint32_t *zr)
{
struct snd_soc_codec *codec = mbhc->codec;
u16 impedance_l, impedance_r;
u16 impedance_l_fixed;
s16 reg0, reg1;
pr_debug("%s: enter\n", __func__);
WCD_MBHC_RSC_ASSERT_LOCKED(mbhc);
reg0 = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_MASTER_BIAS_CTL);
reg1 = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_MICB_1_EN);
/* enable master bias */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MASTER_BIAS_CTL,
0x30, 0x30);
/* enable mic bias */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MICB_1_EN,
0x06, 0x04);
/* disable FSM */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x80, 0x00);
/* Enable ZDET_L_MEAS_EN */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x08, 0x08);
usleep_range(2000, 2100);
/* Read Left impedance value from Result1 */
impedance_l = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_MBHC_BTN_RESULT);
/* Enable ZDET_R_MEAS_EN */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x0C, 0x04);
usleep_range(2000, 2100);
/* Read Right impedance value from Result1 */
impedance_r = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_MBHC_BTN_RESULT);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x04, 0x00);
if (impedance_l > 1)
goto exit;
/*
* As the result is 0 impedance is < 200 use
* RAMP to measure impedance further.
*/
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0xFF, 0x00);
/* Enable RAMP_L , RAMP_R & ZDET_CHG*/
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_BTN0_ZDETL_CTL,
0x03, 0x03);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x02, 0x02);
usleep_range(50000, 50100);
/* Enable ZDET_DISCHG_CAP_CTL to add extra capacitance */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x01, 0x01);
usleep_range(5000, 5100);
/* Enable ZDET_L_MEAS_EN */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x08, 0x08);
usleep_range(2000, 2100);
/* Read Left impedance value from Result1 */
impedance_l = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_MBHC_BTN_RESULT);
/* Enable ZDET_R_MEAS_EN */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x0C, 0x04);
usleep_range(2000, 2100);
/* Read Right impedance value from Result1 */
impedance_r = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_MBHC_BTN_RESULT);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x04, 0x00);
if (!mbhc->mbhc_cfg->mono_stero_detection) {
/* Set ZDET_CHG to 0 to discharge ramp */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x02, 0x00);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_BTN0_ZDETL_CTL,
0x03, 0x00);
usleep_range(40000, 40100);
goto exit;
}
/* Disable Set ZDET_CONN_RAMP_L and enable ZDET_CONN_FIXED_L */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_BTN0_ZDETL_CTL,
0x02, 0x00);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_BTN1_ZDETM_CTL,
0x02, 0x02);
/* Set ZDET_CHG to 0 */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x02, 0x00);
usleep_range(40000, 40100);
/* Set ZDET_CONN_RAMP_R to 0 */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_BTN0_ZDETL_CTL,
0x01, 0x00);
/* Enable ZDET_L_MEAS_EN */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x08, 0x08);
usleep_range(2000, 2100);
/* Read Left impedance value from Result1 */
impedance_l_fixed = snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_BTN_RESULT);
/* Disable ZDET_L_MEAS_EN */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x08, 0x00);
/*
* impedance_l is equal to impedance_l_fixed then headset is stereo
* otherwise headset is mono
*/
/* Enable ZDET_CHG */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x02, 0x02);
usleep_range(10000, 10100);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_BTN0_ZDETL_CTL,
0x02, 0x02);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_BTN1_ZDETM_CTL,
0x02, 0x00);
/* Set ZDET_CHG to 0 to discharge HPHL */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0x02, 0x00);
usleep_range(40000, 40100);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_BTN0_ZDETL_CTL,
0x02, 0x00);
exit:
/*
* Enable the FSM and button source back for
* button detection.
*/
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0xFF, 0xB0);
/* write back Master Bias and mic_bias registers */
snd_soc_write(codec, MSM8X16_WCD_A_ANALOG_MICB_1_EN, reg1);
snd_soc_write(codec, MSM8X16_WCD_A_ANALOG_MASTER_BIAS_CTL, reg0);
*zl = impedance_l;
*zr = impedance_r;
pr_debug("%s: RL %d milliohm, RR %d milliohm\n", __func__, *zl, *zr);
pr_debug("%s: Impedance detection completed\n", __func__);
}
static void wcd_mbhc_report_plug(struct wcd_mbhc *mbhc, int insertion,
enum snd_jack_types jack_type)
{
struct snd_soc_codec *codec = mbhc->codec;
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;
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;
}
/*
* Set micbias back to 1.8V if accessory was special
* headset and thus micbias was increased to 2.8V
*/
if (mbhc->micbias_enable)
snd_soc_write(codec, MSM8X16_WCD_A_ANALOG_MICB_1_VAL,
0x20);
mbhc->zl = mbhc->zr = 0;
mbhc->is_hs_inserted = false;
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);
/* make sure to turn off micbias */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MICB_1_INT_RBIAS,
0x18, 0x08);
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_MICB_2_EN,
0x20, 0x20);
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 &&
mbhc->hph_status == SND_JACK_HEADSET)
snd_soc_write(codec,
MSM8X16_WCD_A_ANALOG_MICB_1_VAL,
0x20);
mbhc->zl = mbhc->zr = 0;
mbhc->is_hs_inserted = false;
pr_debug("%s: Reporting removal (%x)\n",
__func__, mbhc->hph_status);
wcd_mbhc_jack_report(mbhc, &mbhc->headset_jack,
0, WCD_MBHC_JACK_MASK);
mbhc->hph_status &= ~(SND_JACK_HEADSET |
SND_JACK_LINEOUT);
}
if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADSET &&
jack_type == SND_JACK_HEADPHONE)
mbhc->hph_status &= ~SND_JACK_HEADSET;
/* Report insertion */
mbhc->hph_status |= jack_type;
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;
if (mbhc->impedance_detect)
wcd_mbhc_calc_impedance(mbhc,
&mbhc->zl, &mbhc->zr);
mbhc->is_hs_inserted = true;
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, 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 void wcd_mbhc_find_plug_and_report(struct wcd_mbhc *mbhc,
enum wcd_mbhc_plug_type plug_type)
{
struct snd_soc_codec *codec = mbhc->codec;
pr_debug("%s: enter current_plug(%d) new_plug(%d)\n",
__func__, mbhc->current_plug, plug_type);
WCD_MBHC_RSC_ASSERT_LOCKED(mbhc);
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) {
wcd_mbhc_report_plug(mbhc, 1, SND_JACK_UNSUPPORTED);
} else if (plug_type == MBHC_PLUG_TYPE_HEADSET) {
/*
* If Headphone was reported previously, this will
* only report the mic line
*/
wcd_mbhc_report_plug(mbhc, 1, SND_JACK_HEADSET);
} 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__);
/*
* Enable HPHL trigger and MIC Schmitt triggers.
* Setup for insertion detection.
*/
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_2,
0x06, 0x06);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_1,
0x01, 0x01);
wcd9xxx_spmi_enable_irq(
mbhc->intr_ids->mbhc_hs_ins_rem_intr);
} else {
wcd_mbhc_report_plug(mbhc, 1, SND_JACK_UNSUPPORTED);
}
} else {
WARN(1, "Unexpected current plug_type %d, plug_type %d\n",
mbhc->current_plug, plug_type);
}
pr_debug("%s: leave\n", __func__);
}
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 result1, result2;
bool wrk_complete = false;
int delay = 0;
pr_debug("%s: enter\n", __func__);
mbhc = container_of(work, struct wcd_mbhc, correct_plug_swch);
codec = mbhc->codec;
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\n", __func__);
goto exit;
}
/*
* allow sometime and re-check stop requested again.
* this is as recommeneded by HW design team after
* multiple test iterations with trial error basis.
*/
msleep(200);
if (mbhc->hs_detect_work_stop) {
pr_debug("%s: stop requested\n", __func__);
goto exit;
}
result1 = snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_BTN_RESULT);
result2 = snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_ZDET_ELECT_RESULT);
pr_debug("%s: result2 = %x\n", __func__, result2);
if (result2 == 1) {
pr_debug("%s: cable is extension cable\n", __func__);
wrk_complete = true;
} else {
pr_debug("%s: cable is headset\n", __func__);
plug_type = MBHC_PLUG_TYPE_HEADSET;
if (mbhc->current_plug != MBHC_PLUG_TYPE_HEADSET) {
wcd_mbhc_find_plug_and_report(mbhc, plug_type);
goto exit;
}
wrk_complete = false;
}
}
if (wrk_complete == true)
plug_type = MBHC_PLUG_TYPE_HIGH_HPH;
else if (plug_type == MBHC_PLUG_TYPE_HEADSET) {
if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADSET &&
mbhc->btn_press_intr) {
pr_debug("%s: Can be slow insertion of headphone\n",
__func__);
plug_type = MBHC_PLUG_TYPE_HEADPHONE;
}
} else
plug_type = MBHC_PLUG_TYPE_INVALID;
if (plug_type == MBHC_PLUG_TYPE_HIGH_HPH) {
/* Enable external voltage source to micbias if present */
if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mb_source)
mbhc->mbhc_cb->enable_mb_source(codec, true);
/* Enable micbias if not already enabled*/
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_MICB_2_EN,
0x80, 0x80);
pr_debug("DEBUG special headset, start register writes");
result2 = snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_ZDET_ELECT_RESULT);
while (result2 & 0x01) {
if (wcd_swch_level_remove(mbhc)) {
pr_debug("%s: Switch level is low ", __func__);
break;
}
delay = delay + 50;
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MICB_1_CTL,
0x60, 0x60);
snd_soc_write(codec, MSM8X16_WCD_A_ANALOG_MICB_1_VAL,
0xC0);
/*
* Special headset needs micbias voltage above 2.4,
* it is taking time for micbias to rampup and
* for result2 to change.This delay is also dependent
* on type of headset.
*/
msleep(delay);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MICB_2_EN,
0x18, 0x10);
msleep(50);
result2 = snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_ZDET_ELECT_RESULT);
if (!(result2 & 0x01))
pr_debug("spl headset detected in %d msecs",
delay);
if (delay == 2000) {
pr_debug("spl headset not detected in 2 sec");
break;
}
}
if (!result1 && !(result2 & 0x01)) {
pr_debug("%s: Headset with threshold found\n",
__func__);
plug_type = MBHC_PLUG_TYPE_HEADSET;
mbhc->micbias_enable = true;
}
/* Disable autozero and put micbias back to 1.8V */
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_MICB_2_EN,
0x18, 0x00);
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_MICB_1_CTL,
0x60, 0x00);
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_MICB_2_EN,
0x80, 0x00);
if (!mbhc->micbias_enable)
snd_soc_write(codec, MSM8X16_WCD_A_ANALOG_MICB_1_VAL,
0x20);
/* Disable external voltage source to micbias if present */
if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mb_source)
mbhc->mbhc_cb->enable_mb_source(codec, false);
}
wcd_mbhc_find_plug_and_report(mbhc, plug_type);
exit:
wcd9xxx_spmi_unlock_sleep();
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;
long timeout = msecs_to_jiffies(50); /* 50ms */
enum wcd_mbhc_plug_type plug_type;
int timeout_result;
u16 result1, result2, swap_res;
pr_debug("%s: enter\n", __func__);
WCD_MBHC_RSC_ASSERT_LOCKED(mbhc);
/* Enable micbias */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MICB_2_EN,
0x80, 0x80);
/* Enable external voltage source to micbias if present */
if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mb_source)
mbhc->mbhc_cb->enable_mb_source(codec, true);
/*
* Wait for 50msec for FSM to complete its task.
* wakeup if btn pres intr occurs
*/
mbhc->is_btn_press = false;
WCD_MBHC_RSC_UNLOCK(mbhc);
timeout_result = wait_event_interruptible_timeout(mbhc->wait_btn_press,
mbhc->is_btn_press, timeout);
WCD_MBHC_RSC_LOCK(mbhc);
result1 = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_MBHC_BTN_RESULT);
result2 = snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_ZDET_ELECT_RESULT);
if (!timeout_result) {
pr_debug("%s No btn press interrupt\n", __func__);
/*
* Check if there is any cross connection,
* Micbias and schmitt trigger (HPHL-HPHR)
* needs to be enabled.
*/
pr_debug("%s: result1 %x, result2 %x\n",
__func__, result1, result2);
if (!(result2 & 0x01)) {
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_2,
0x6, 0x2);
/*
* read reg MBHC_RESULT_2 value with cross
* connection bit
*/
swap_res = snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_ZDET_ELECT_RESULT);
pr_debug("%s: swap_res %x\n", __func__, swap_res);
if (!result1 && !(swap_res & 0x04)) {
plug_type = MBHC_PLUG_TYPE_GND_MIC_SWAP;
pr_debug("%s: Cross connection identified\n",
__func__);
goto eu_us_switch;
} else {
pr_debug("%s: No Cross connection found\n",
__func__);
}
/* Disable micbias and schmitt trigger */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_2,
0x6, 0x0);
}
if (!result1 && !(result2 & 0x01))
plug_type = MBHC_PLUG_TYPE_HEADSET;
else if (!result1 && (result2 & 0x01))
plug_type = MBHC_PLUG_TYPE_HIGH_HPH;
else {
plug_type = MBHC_PLUG_TYPE_INVALID;
goto exit;
}
} else {
if (!result1 && !result2)
plug_type = MBHC_PLUG_TYPE_HEADPHONE;
else {
plug_type = MBHC_PLUG_TYPE_INVALID;
goto exit;
}
}
eu_us_switch:
if (plug_type == MBHC_PLUG_TYPE_GND_MIC_SWAP) {
pr_debug("%s: cross connection found\n", __func__);
if (mbhc->mbhc_cfg->swap_gnd_mic) {
pr_debug("%s: US_EU gpio present, flip switch\n",
__func__);
if (mbhc->mbhc_cfg->swap_gnd_mic(codec))
plug_type = MBHC_PLUG_TYPE_HEADSET;
}
/* Disable micbias and schmitt trigger */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_2,
0x6, 0x0);
}
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MICB_2_EN,
0x80, 0x00);
/* Disable external voltage source to micbias if present */
if (mbhc->mbhc_cb && mbhc->mbhc_cb->enable_mb_source)
mbhc->mbhc_cb->enable_mb_source(codec, false);
pr_debug("%s: Valid plug found, plug type is %d\n",
__func__, plug_type);
if (plug_type != MBHC_PLUG_TYPE_HIGH_HPH &&
plug_type != MBHC_PLUG_TYPE_HEADSET &&
plug_type != MBHC_PLUG_TYPE_INVALID)
wcd_mbhc_find_plug_and_report(mbhc, plug_type);
else if (plug_type == MBHC_PLUG_TYPE_HEADSET) {
wcd_mbhc_find_plug_and_report(mbhc, plug_type);
wcd_schedule_hs_detect_plug(mbhc, &mbhc->correct_plug_swch);
} else
wcd_schedule_hs_detect_plug(mbhc, &mbhc->correct_plug_swch);
exit:
pr_debug("%s: leave\n", __func__);
}
static void wcd_mbhc_swch_irq_handler(struct wcd_mbhc *mbhc)
{
bool detection_type;
struct snd_soc_codec *codec = mbhc->codec;
pr_debug("%s: enter\n", __func__);
WCD_MBHC_RSC_LOCK(mbhc);
mbhc->in_swch_irq_handler = true;
detection_type = (snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_1)) & 0x20;
/* Set the detection type appropriately */
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_1,
0x20, (!detection_type << 5));
wcd_cancel_hs_detect_plug(mbhc, &mbhc->correct_plug_swch);
if ((mbhc->current_plug == MBHC_PLUG_TYPE_NONE) && detection_type) {
/* Make sure MASTER_BIAS_CTL is enabled */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MASTER_BIAS_CTL,
0x30, 0x30);
/* Enable Tx2 RBias */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MICB_1_INT_RBIAS,
0x10, 0x10);
/* Remove pull down on MIC BIAS2 */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MICB_2_EN,
0x20, 0x00);
/* Enable HW FSM and current source */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0xB0, 0xB0);
/*
* Calculate the trim value for each device used
* till is comes in production by hardware team.
*/
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_SEC_ACCESS,
0xA5, 0xA5);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_TRIM_CTRL2,
0xFF, 0x30);
wcd_mbhc_detect_plug_type(mbhc);
} else if ((mbhc->current_plug != MBHC_PLUG_TYPE_NONE)
&& !detection_type) {
/* Disable HW FSM */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0xB0, 0x00);
/* Make sure MASTER_BIAS_CTL is enabled */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MASTER_BIAS_CTL,
0x30, 0x00);
if (mbhc->current_plug == MBHC_PLUG_TYPE_HEADPHONE) {
wcd_mbhc_report_plug(mbhc, 0, SND_JACK_HEADPHONE);
mbhc->btn_press_intr = false;
} 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) {
wcd_mbhc_report_plug(mbhc, 0, SND_JACK_HEADSET);
} else if (mbhc->current_plug == MBHC_PLUG_TYPE_HIGH_HPH) {
wcd_mbhc_report_plug(mbhc, 0, SND_JACK_LINEOUT);
/*
* Disable HPHL trigger and MIC Schmitt triggers.
* Setup for insertion detection.
*/
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_2,
0x06, 0x00);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_1,
0x01, 0x00);
wcd9xxx_spmi_disable_irq(
mbhc->intr_ids->mbhc_hs_ins_rem_intr);
}
} else if (!detection_type) {
/* Disable HW FSM */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MBHC_FSM_CTL,
0xB0, 0x00);
/* Make sure MASTER_BIAS_CTL is enabled */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_MASTER_BIAS_CTL,
0x30, 0x00);
}
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(wcd9xxx_spmi_lock_sleep() == false)) {
pr_warn("%s: failed to hold suspend\n", __func__);
r = IRQ_NONE;
} else {
/* Call handler */
wcd_mbhc_swch_irq_handler(mbhc);
wcd9xxx_spmi_unlock_sleep();
}
pr_debug("%s: leave %d\n", __func__, r);
return r;
}
static int wcd_mbhc_get_button_mask(u16 btn)
{
int mask = 0;
switch (btn) {
case 0:
mask = SND_JACK_BTN_0;
break;
case 1:
mask = SND_JACK_BTN_1;
break;
case 3:
mask = SND_JACK_BTN_2;
break;
case 7:
mask = SND_JACK_BTN_3;
break;
case 15:
mask = SND_JACK_BTN_4;
break;
default:
break;
}
return mask;
}
static irqreturn_t wcd_mbhc_hs_ins_rem_irq(int irq, void *data)
{
struct wcd_mbhc *mbhc = data;
struct snd_soc_codec *codec = mbhc->codec;
u16 result2;
bool detection_type;
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);
detection_type = (snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_1)) & 0x01;
/* Set the detection type appropriately */
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_1,
0x01, (!detection_type));
/* chech if both Left and MIC Schmitt triggers are triggered */
result2 = (snd_soc_read(codec,
MSM8X16_WCD_A_ANALOG_MBHC_ZDET_ELECT_RESULT)
^ 0x0A);
if (detection_type) {
if (result2)
/* Go for plug type determination */
wcd_mbhc_detect_plug_type(mbhc);
} else if (!result2) {
/*
* extension cable is still plugged in
* report it as LINEOUT device
*/
wcd_mbhc_report_plug(mbhc, 1, SND_JACK_LINEOUT);
} else {
pr_debug("%s: detection_type %d, result2 %d\n", __func__,
detection_type, result2);
}
WCD_MBHC_RSC_UNLOCK(mbhc);
pr_debug("%s: leave\n", __func__);
return IRQ_HANDLED;
}
irqreturn_t wcd_mbhc_btn_press_handler(int irq, void *data)
{
struct wcd_mbhc *mbhc = data;
struct snd_soc_codec *codec = mbhc->codec;
u16 result1;
int mask;
unsigned long msec_val;
pr_debug("%s: enter\n", __func__);
WCD_MBHC_RSC_LOCK(mbhc);
/* send event to sw intr handler*/
mbhc->is_btn_press = true;
wake_up_interruptible(&mbhc->wait_btn_press);
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 type is not headset, ignore button press\n",
__func__);
goto done;
}
result1 = snd_soc_read(codec, MSM8X16_WCD_A_ANALOG_MBHC_BTN_RESULT);
mask = wcd_mbhc_get_button_mask(result1);
mbhc->buttons_pressed |= mask;
pr_debug("%s: Reporting btn press result1 =%d\n", __func__, result1);
wcd_mbhc_jack_report(mbhc, &mbhc->button_jack,
mbhc->buttons_pressed, mbhc->buttons_pressed);
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;
pr_debug("%s: enter\n", __func__);
WCD_MBHC_RSC_LOCK(mbhc);
mbhc->btn_press_intr = false;
/*
* 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_report_plug(mbhc, 1, SND_JACK_HEADSET);
goto exit;
}
if (mbhc->buttons_pressed & WCD_MBHC_JACK_BUTTON_MASK) {
if (mbhc->in_swch_irq_handler) {
pr_debug("%s: Switch irq kicked in, ignore\n",
__func__);
} else {
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;
struct snd_soc_codec *codec;
pr_debug("%s: received HPHL OCP irq\n", __func__);
if (mbhc) {
codec = mbhc->codec;
if ((mbhc->hphlocp_cnt < OCP_ATTEMPT) &&
(!mbhc->hphrocp_cnt)) {
pr_debug("%s: retry\n", __func__);
mbhc->hphlocp_cnt++;
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_RX_COM_OCP_CTL,
0x10, 0x00);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_RX_COM_OCP_CTL,
0x10, 0x10);
} else {
wcd9xxx_spmi_disable_irq(mbhc->intr_ids->hph_left_ocp);
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;
struct snd_soc_codec *codec;
pr_debug("%s: received HPHR OCP irq\n", __func__);
codec = mbhc->codec;
if ((mbhc->hphrocp_cnt < OCP_ATTEMPT) &&
(!mbhc->hphlocp_cnt)) {
pr_debug("%s: retry\n", __func__);
mbhc->hphrocp_cnt++;
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_RX_COM_OCP_CTL,
0x10, 0x00);
snd_soc_update_bits(codec,
MSM8X16_WCD_A_ANALOG_RX_COM_OCP_CTL,
0x10, 0x10);
} else {
wcd9xxx_spmi_disable_irq(mbhc->intr_ids->hph_right_ocp);
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 int wcd_mbhc_initialise(struct wcd_mbhc *mbhc)
{
int ret = 0;
struct snd_soc_codec *codec = mbhc->codec;
pr_debug("%s: enter\n", __func__);
/* Bring the digital block out of reset */
snd_soc_update_bits(codec, MSM8X16_WCD_A_DIGITAL_CDC_RST_CTL,
0x80, 0x80);
snd_soc_write(codec, MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_1, 0xB4);
/* enable HS detection */
snd_soc_write(codec, MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_2, 0xE8);
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_2, 0x18,
(mbhc->hphl_swh << 4 | mbhc->gnd_swh << 3));
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_MBHC_DET_CTL_2,
0x01, 0x01);
snd_soc_write(codec, MSM8X16_WCD_A_ANALOG_MBHC_DBNC_TIMER, 0x98);
snd_soc_update_bits(codec, MSM8X16_WCD_A_ANALOG_RX_COM_OCP_CTL,
0x10, 0x00);
/* enable MBHC clock */
snd_soc_update_bits(codec,
MSM8X16_WCD_A_DIGITAL_CDC_DIG_CLK_CTL,
0x08, 0x08);
/* Program Button threshold registers */
wcd_program_btn_threshold(mbhc);
INIT_WORK(&mbhc->correct_plug_swch, wcd_correct_swch_plug);
/* enable the WCD MBHC IRQ's */
wcd9xxx_spmi_enable_irq(mbhc->intr_ids->mbhc_sw_intr);
wcd9xxx_spmi_enable_irq(mbhc->intr_ids->mbhc_btn_press_intr);
wcd9xxx_spmi_enable_irq(mbhc->intr_ids->mbhc_btn_release_intr);
wcd9xxx_spmi_enable_irq(mbhc->intr_ids->mbhc_hs_ins_rem_intr);
wcd9xxx_spmi_enable_irq(mbhc->intr_ids->hph_left_ocp);
wcd9xxx_spmi_enable_irq(mbhc->intr_ids->hph_right_ocp);
pr_debug("%s: leave\n", __func__);
return ret;
}
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;
rc = wcd_mbhc_initialise(mbhc);
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__);
wcd9xxx_spmi_disable_irq(mbhc->intr_ids->hph_left_ocp);
wcd9xxx_spmi_disable_irq(mbhc->intr_ids->hph_right_ocp);
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,
bool impedance_det_en)
{
int ret = 0;
int hph_swh = 0;
int gnd_swh = 0;
struct snd_soc_card *card = codec->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;
if (mbhc->intr_ids == NULL) {
pr_err("%s: Interrupt mapping not provided\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;
}
}
init_waitqueue_head(&mbhc->wait_btn_press);
mutex_init(&mbhc->codec_resource_lock);
ret = wcd9xxx_spmi_request_irq(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 = wcd9xxx_spmi_request_irq(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 = wcd9xxx_spmi_request_irq(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 = wcd9xxx_spmi_request_irq(mbhc->intr_ids->mbhc_hs_ins_rem_intr,
wcd_mbhc_hs_ins_rem_irq,
"Elect Insert Remove", mbhc);
if (ret) {
pr_err("%s: Failed to request irq %d\n", __func__,
mbhc->intr_ids->mbhc_hs_ins_rem_intr);
goto err_mbhc_hs_ins_rem_irq;
}
wcd9xxx_spmi_disable_irq(mbhc->intr_ids->mbhc_hs_ins_rem_intr);
ret = wcd9xxx_spmi_request_irq(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;
}
wcd9xxx_spmi_disable_irq(mbhc->intr_ids->hph_left_ocp);
ret = wcd9xxx_spmi_request_irq(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;
}
wcd9xxx_spmi_disable_irq(mbhc->intr_ids->hph_right_ocp);
pr_debug("%s: leave ret %d\n", __func__, ret);
return ret;
err_hphr_ocp_irq:
wcd9xxx_spmi_free_irq(mbhc->intr_ids->hph_left_ocp, mbhc);
err_hphl_ocp_irq:
wcd9xxx_spmi_free_irq(mbhc->intr_ids->mbhc_hs_ins_rem_intr, mbhc);
err_mbhc_hs_ins_rem_irq:
wcd9xxx_spmi_free_irq(mbhc->intr_ids->mbhc_btn_release_intr, mbhc);
err_btn_release_irq:
wcd9xxx_spmi_free_irq(mbhc->intr_ids->mbhc_btn_press_intr, mbhc);
err_btn_press_irq:
wcd9xxx_spmi_free_irq(mbhc->intr_ids->mbhc_sw_intr, mbhc);
err_mbhc_sw_irq:
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)
{
wcd9xxx_spmi_free_irq(mbhc->intr_ids->mbhc_sw_intr, mbhc);
wcd9xxx_spmi_free_irq(mbhc->intr_ids->mbhc_btn_press_intr, mbhc);
wcd9xxx_spmi_free_irq(mbhc->intr_ids->mbhc_btn_release_intr, mbhc);
wcd9xxx_spmi_free_irq(mbhc->intr_ids->mbhc_hs_ins_rem_intr, mbhc);
wcd9xxx_spmi_free_irq(mbhc->intr_ids->hph_left_ocp, mbhc);
wcd9xxx_spmi_free_irq(mbhc->intr_ids->hph_right_ocp, mbhc);
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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