![Mark Brown](/assets/img/avatar_default.png)
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
918 lines
23 KiB
C
918 lines
23 KiB
C
/*
|
|
* extcon-arizona.c - Extcon driver Wolfson Arizona devices
|
|
*
|
|
* Copyright (C) 2012 Wolfson Microelectronics plc
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 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/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/err.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/input.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/pm_runtime.h>
|
|
#include <linux/regulator/consumer.h>
|
|
#include <linux/extcon.h>
|
|
|
|
#include <linux/mfd/arizona/core.h>
|
|
#include <linux/mfd/arizona/pdata.h>
|
|
#include <linux/mfd/arizona/registers.h>
|
|
|
|
#define ARIZONA_DEFAULT_HP 32
|
|
|
|
#define ARIZONA_NUM_BUTTONS 6
|
|
|
|
#define ARIZONA_ACCDET_MODE_MIC 0
|
|
#define ARIZONA_ACCDET_MODE_HPL 1
|
|
#define ARIZONA_ACCDET_MODE_HPR 2
|
|
|
|
struct arizona_extcon_info {
|
|
struct device *dev;
|
|
struct arizona *arizona;
|
|
struct mutex lock;
|
|
struct regulator *micvdd;
|
|
struct input_dev *input;
|
|
|
|
int micd_mode;
|
|
const struct arizona_micd_config *micd_modes;
|
|
int micd_num_modes;
|
|
|
|
bool micd_reva;
|
|
bool micd_clamp;
|
|
|
|
bool hpdet_active;
|
|
|
|
bool mic;
|
|
bool detecting;
|
|
int jack_flips;
|
|
|
|
int hpdet_ip;
|
|
|
|
struct extcon_dev edev;
|
|
};
|
|
|
|
static const struct arizona_micd_config micd_default_modes[] = {
|
|
{ ARIZONA_ACCDET_SRC, 1 << ARIZONA_MICD_BIAS_SRC_SHIFT, 0 },
|
|
{ 0, 2 << ARIZONA_MICD_BIAS_SRC_SHIFT, 1 },
|
|
};
|
|
|
|
static struct {
|
|
u16 status;
|
|
int report;
|
|
} arizona_lvl_to_key[ARIZONA_NUM_BUTTONS] = {
|
|
{ 0x1, BTN_0 },
|
|
{ 0x2, BTN_1 },
|
|
{ 0x4, BTN_2 },
|
|
{ 0x8, BTN_3 },
|
|
{ 0x10, BTN_4 },
|
|
{ 0x20, BTN_5 },
|
|
};
|
|
|
|
#define ARIZONA_CABLE_MECHANICAL 0
|
|
#define ARIZONA_CABLE_MICROPHONE 1
|
|
#define ARIZONA_CABLE_HEADPHONE 2
|
|
#define ARIZONA_CABLE_LINEOUT 3
|
|
|
|
static const char *arizona_cable[] = {
|
|
"Mechanical",
|
|
"Microphone",
|
|
"Headphone",
|
|
"Line-out",
|
|
NULL,
|
|
};
|
|
|
|
static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode)
|
|
{
|
|
struct arizona *arizona = info->arizona;
|
|
|
|
if (arizona->pdata.micd_pol_gpio > 0)
|
|
gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio,
|
|
info->micd_modes[mode].gpio);
|
|
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
|
|
ARIZONA_MICD_BIAS_SRC_MASK,
|
|
info->micd_modes[mode].bias);
|
|
regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1,
|
|
ARIZONA_ACCDET_SRC, info->micd_modes[mode].src);
|
|
|
|
info->micd_mode = mode;
|
|
|
|
dev_dbg(arizona->dev, "Set jack polarity to %d\n", mode);
|
|
}
|
|
|
|
static void arizona_start_mic(struct arizona_extcon_info *info)
|
|
{
|
|
struct arizona *arizona = info->arizona;
|
|
bool change;
|
|
int ret;
|
|
|
|
info->detecting = true;
|
|
info->mic = false;
|
|
info->jack_flips = 0;
|
|
|
|
/* Microphone detection can't use idle mode */
|
|
pm_runtime_get(info->dev);
|
|
|
|
ret = regulator_enable(info->micvdd);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to enable MICVDD: %d\n",
|
|
ret);
|
|
}
|
|
|
|
if (info->micd_reva) {
|
|
regmap_write(arizona->regmap, 0x80, 0x3);
|
|
regmap_write(arizona->regmap, 0x294, 0);
|
|
regmap_write(arizona->regmap, 0x80, 0x0);
|
|
}
|
|
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_ACCESSORY_DETECT_MODE_1,
|
|
ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
|
|
|
|
regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
|
|
ARIZONA_MICD_ENA, ARIZONA_MICD_ENA,
|
|
&change);
|
|
if (!change) {
|
|
regulator_disable(info->micvdd);
|
|
pm_runtime_put_autosuspend(info->dev);
|
|
}
|
|
}
|
|
|
|
static void arizona_stop_mic(struct arizona_extcon_info *info)
|
|
{
|
|
struct arizona *arizona = info->arizona;
|
|
bool change;
|
|
|
|
regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
|
|
ARIZONA_MICD_ENA, 0,
|
|
&change);
|
|
|
|
if (info->micd_reva) {
|
|
regmap_write(arizona->regmap, 0x80, 0x3);
|
|
regmap_write(arizona->regmap, 0x294, 2);
|
|
regmap_write(arizona->regmap, 0x80, 0x0);
|
|
}
|
|
|
|
if (change) {
|
|
regulator_disable(info->micvdd);
|
|
pm_runtime_mark_last_busy(info->dev);
|
|
pm_runtime_put_autosuspend(info->dev);
|
|
}
|
|
}
|
|
|
|
static struct {
|
|
unsigned int factor_a;
|
|
unsigned int factor_b;
|
|
} arizona_hpdet_b_ranges[] = {
|
|
{ 5528, 362464 },
|
|
{ 11084, 6186851 },
|
|
{ 11065, 65460395 },
|
|
};
|
|
|
|
static struct {
|
|
int min;
|
|
int max;
|
|
} arizona_hpdet_c_ranges[] = {
|
|
{ 0, 30 },
|
|
{ 8, 100 },
|
|
{ 100, 1000 },
|
|
{ 1000, 10000 },
|
|
};
|
|
|
|
static int arizona_hpdet_read(struct arizona_extcon_info *info)
|
|
{
|
|
struct arizona *arizona = info->arizona;
|
|
unsigned int val, range;
|
|
int ret;
|
|
|
|
ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2, &val);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to read HPDET status: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
switch (info->hpdet_ip) {
|
|
case 0:
|
|
if (!(val & ARIZONA_HP_DONE)) {
|
|
dev_err(arizona->dev, "HPDET did not complete: %x\n",
|
|
val);
|
|
val = ARIZONA_DEFAULT_HP;
|
|
}
|
|
|
|
val &= ARIZONA_HP_LVL_MASK;
|
|
break;
|
|
|
|
case 1:
|
|
if (!(val & ARIZONA_HP_DONE_B)) {
|
|
dev_err(arizona->dev, "HPDET did not complete: %x\n",
|
|
val);
|
|
return ARIZONA_DEFAULT_HP;
|
|
}
|
|
|
|
ret = regmap_read(arizona->regmap, ARIZONA_HP_DACVAL, &val);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to read HP value: %d\n",
|
|
ret);
|
|
return ARIZONA_DEFAULT_HP;
|
|
}
|
|
|
|
regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
|
|
&range);
|
|
range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK)
|
|
>> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT;
|
|
|
|
if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 &&
|
|
(val < 100 || val > 0x3fb)) {
|
|
range++;
|
|
dev_dbg(arizona->dev, "Moving to HPDET range %d\n",
|
|
range);
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_HEADPHONE_DETECT_1,
|
|
ARIZONA_HP_IMPEDANCE_RANGE_MASK,
|
|
range <<
|
|
ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
/* If we go out of range report top of range */
|
|
if (val < 100 || val > 0x3fb) {
|
|
dev_dbg(arizona->dev, "Measurement out of range\n");
|
|
return 10000;
|
|
}
|
|
|
|
dev_dbg(arizona->dev, "HPDET read %d in range %d\n",
|
|
val, range);
|
|
|
|
val = arizona_hpdet_b_ranges[range].factor_b
|
|
/ ((val * 100) -
|
|
arizona_hpdet_b_ranges[range].factor_a);
|
|
break;
|
|
|
|
default:
|
|
dev_warn(arizona->dev, "Unknown HPDET IP revision %d\n",
|
|
info->hpdet_ip);
|
|
case 2:
|
|
if (!(val & ARIZONA_HP_DONE_B)) {
|
|
dev_err(arizona->dev, "HPDET did not complete: %x\n",
|
|
val);
|
|
return ARIZONA_DEFAULT_HP;
|
|
}
|
|
|
|
val &= ARIZONA_HP_LVL_B_MASK;
|
|
|
|
regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
|
|
&range);
|
|
range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK)
|
|
>> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT;
|
|
|
|
/* Skip up or down a range? */
|
|
if (range && (val < arizona_hpdet_c_ranges[range].min)) {
|
|
range--;
|
|
dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n",
|
|
arizona_hpdet_c_ranges[range].min,
|
|
arizona_hpdet_c_ranges[range].max);
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_HEADPHONE_DETECT_1,
|
|
ARIZONA_HP_IMPEDANCE_RANGE_MASK,
|
|
range <<
|
|
ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 &&
|
|
(val >= arizona_hpdet_c_ranges[range].max)) {
|
|
range++;
|
|
dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n",
|
|
arizona_hpdet_c_ranges[range].min,
|
|
arizona_hpdet_c_ranges[range].max);
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_HEADPHONE_DETECT_1,
|
|
ARIZONA_HP_IMPEDANCE_RANGE_MASK,
|
|
range <<
|
|
ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
|
|
return -EAGAIN;
|
|
}
|
|
}
|
|
|
|
dev_dbg(arizona->dev, "HP impedance %d ohms\n", val);
|
|
return val;
|
|
}
|
|
|
|
static irqreturn_t arizona_hpdet_irq(int irq, void *data)
|
|
{
|
|
struct arizona_extcon_info *info = data;
|
|
struct arizona *arizona = info->arizona;
|
|
int report = ARIZONA_CABLE_HEADPHONE;
|
|
int ret;
|
|
|
|
mutex_lock(&info->lock);
|
|
|
|
/* If we got a spurious IRQ for some reason then ignore it */
|
|
if (!info->hpdet_active) {
|
|
dev_warn(arizona->dev, "Spurious HPDET IRQ\n");
|
|
mutex_unlock(&info->lock);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
/* If the cable was removed while measuring ignore the result */
|
|
ret = extcon_get_cable_state_(&info->edev, ARIZONA_CABLE_MECHANICAL);
|
|
if (ret < 0) {
|
|
dev_err(arizona->dev, "Failed to check cable state: %d\n",
|
|
ret);
|
|
goto out;
|
|
} else if (!ret) {
|
|
dev_dbg(arizona->dev, "Ignoring HPDET for removed cable\n");
|
|
goto done;
|
|
}
|
|
|
|
ret = arizona_hpdet_read(info);
|
|
if (ret == -EAGAIN) {
|
|
goto out;
|
|
} else if (ret < 0) {
|
|
goto done;
|
|
}
|
|
|
|
/* Reset back to starting range */
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_HEADPHONE_DETECT_1,
|
|
ARIZONA_HP_IMPEDANCE_RANGE_MASK, 0);
|
|
|
|
/* Report high impedence cables as line outputs */
|
|
if (ret >= 5000)
|
|
report = ARIZONA_CABLE_LINEOUT;
|
|
else
|
|
report = ARIZONA_CABLE_HEADPHONE;
|
|
|
|
ret = extcon_set_cable_state_(&info->edev, report, true);
|
|
if (ret != 0)
|
|
dev_err(arizona->dev, "Failed to report HP/line: %d\n",
|
|
ret);
|
|
|
|
ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, 0);
|
|
if (ret != 0)
|
|
dev_warn(arizona->dev, "Failed to undo magic: %d\n", ret);
|
|
|
|
ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, 0);
|
|
if (ret != 0)
|
|
dev_warn(arizona->dev, "Failed to undo magic: %d\n", ret);
|
|
|
|
done:
|
|
regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
|
|
ARIZONA_HP_POLL, 0);
|
|
|
|
/* Revert back to MICDET mode */
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_ACCESSORY_DETECT_MODE_1,
|
|
ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
|
|
|
|
/* If we have a mic then reenable MICDET */
|
|
if (info->mic)
|
|
arizona_start_mic(info);
|
|
|
|
if (info->hpdet_active) {
|
|
pm_runtime_put_autosuspend(info->dev);
|
|
info->hpdet_active = false;
|
|
}
|
|
|
|
out:
|
|
mutex_unlock(&info->lock);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void arizona_identify_headphone(struct arizona_extcon_info *info)
|
|
{
|
|
struct arizona *arizona = info->arizona;
|
|
int ret;
|
|
|
|
dev_dbg(arizona->dev, "Starting HPDET\n");
|
|
|
|
/* Make sure we keep the device enabled during the measurement */
|
|
pm_runtime_get(info->dev);
|
|
|
|
info->hpdet_active = true;
|
|
|
|
if (info->mic)
|
|
arizona_stop_mic(info);
|
|
|
|
ret = regmap_update_bits(arizona->regmap, 0x225, 0x4000, 0x4000);
|
|
if (ret != 0)
|
|
dev_warn(arizona->dev, "Failed to do magic: %d\n", ret);
|
|
|
|
ret = regmap_update_bits(arizona->regmap, 0x226, 0x4000, 0x4000);
|
|
if (ret != 0)
|
|
dev_warn(arizona->dev, "Failed to do magic: %d\n", ret);
|
|
|
|
ret = regmap_update_bits(arizona->regmap,
|
|
ARIZONA_ACCESSORY_DETECT_MODE_1,
|
|
ARIZONA_ACCDET_MODE_MASK,
|
|
ARIZONA_ACCDET_MODE_HPL);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to set HPDETL mode: %d\n", ret);
|
|
goto err;
|
|
}
|
|
|
|
ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
|
|
ARIZONA_HP_POLL, ARIZONA_HP_POLL);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n",
|
|
ret);
|
|
goto err;
|
|
}
|
|
|
|
return;
|
|
|
|
err:
|
|
regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1,
|
|
ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
|
|
|
|
/* Just report headphone */
|
|
ret = extcon_update_state(&info->edev,
|
|
1 << ARIZONA_CABLE_HEADPHONE,
|
|
1 << ARIZONA_CABLE_HEADPHONE);
|
|
if (ret != 0)
|
|
dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
|
|
|
|
if (info->mic)
|
|
arizona_start_mic(info);
|
|
|
|
info->hpdet_active = false;
|
|
}
|
|
}
|
|
|
|
info->hpdet_active = false;
|
|
}
|
|
|
|
static irqreturn_t arizona_micdet(int irq, void *data)
|
|
{
|
|
struct arizona_extcon_info *info = data;
|
|
struct arizona *arizona = info->arizona;
|
|
unsigned int val, lvl;
|
|
int ret, i;
|
|
|
|
mutex_lock(&info->lock);
|
|
|
|
ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to read MICDET: %d\n", ret);
|
|
mutex_unlock(&info->lock);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
dev_dbg(arizona->dev, "MICDET: %x\n", val);
|
|
|
|
if (!(val & ARIZONA_MICD_VALID)) {
|
|
dev_warn(arizona->dev, "Microphone detection state invalid\n");
|
|
mutex_unlock(&info->lock);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
/* Due to jack detect this should never happen */
|
|
if (!(val & ARIZONA_MICD_STS)) {
|
|
dev_warn(arizona->dev, "Detected open circuit\n");
|
|
info->detecting = false;
|
|
goto handled;
|
|
}
|
|
|
|
/* If we got a high impedence we should have a headset, report it. */
|
|
if (info->detecting && (val & 0x400)) {
|
|
arizona_identify_headphone(info);
|
|
|
|
ret = extcon_update_state(&info->edev,
|
|
1 << ARIZONA_CABLE_MICROPHONE,
|
|
1 << ARIZONA_CABLE_MICROPHONE);
|
|
|
|
if (ret != 0)
|
|
dev_err(arizona->dev, "Headset report failed: %d\n",
|
|
ret);
|
|
|
|
info->mic = true;
|
|
info->detecting = false;
|
|
goto handled;
|
|
}
|
|
|
|
/* If we detected a lower impedence during initial startup
|
|
* then we probably have the wrong polarity, flip it. Don't
|
|
* do this for the lowest impedences to speed up detection of
|
|
* plain headphones. If both polarities report a low
|
|
* impedence then give up and report headphones.
|
|
*/
|
|
if (info->detecting && (val & 0x3f8)) {
|
|
info->jack_flips++;
|
|
|
|
if (info->jack_flips >= info->micd_num_modes) {
|
|
dev_dbg(arizona->dev, "Detected HP/line\n");
|
|
arizona_identify_headphone(info);
|
|
|
|
info->detecting = false;
|
|
|
|
arizona_stop_mic(info);
|
|
} else {
|
|
info->micd_mode++;
|
|
if (info->micd_mode == info->micd_num_modes)
|
|
info->micd_mode = 0;
|
|
arizona_extcon_set_mode(info, info->micd_mode);
|
|
|
|
info->jack_flips++;
|
|
}
|
|
|
|
goto handled;
|
|
}
|
|
|
|
/*
|
|
* If we're still detecting and we detect a short then we've
|
|
* got a headphone. Otherwise it's a button press.
|
|
*/
|
|
if (val & 0x3fc) {
|
|
if (info->mic) {
|
|
dev_dbg(arizona->dev, "Mic button detected\n");
|
|
|
|
lvl = val & ARIZONA_MICD_LVL_MASK;
|
|
lvl >>= ARIZONA_MICD_LVL_SHIFT;
|
|
|
|
for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
|
|
if (lvl & arizona_lvl_to_key[i].status)
|
|
input_report_key(info->input,
|
|
arizona_lvl_to_key[i].report,
|
|
1);
|
|
input_sync(info->input);
|
|
|
|
} else if (info->detecting) {
|
|
dev_dbg(arizona->dev, "Headphone detected\n");
|
|
info->detecting = false;
|
|
arizona_stop_mic(info);
|
|
|
|
arizona_identify_headphone(info);
|
|
} else {
|
|
dev_warn(arizona->dev, "Button with no mic: %x\n",
|
|
val);
|
|
}
|
|
} else {
|
|
dev_dbg(arizona->dev, "Mic button released\n");
|
|
for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
|
|
input_report_key(info->input,
|
|
arizona_lvl_to_key[i].report, 0);
|
|
input_sync(info->input);
|
|
}
|
|
|
|
handled:
|
|
pm_runtime_mark_last_busy(info->dev);
|
|
mutex_unlock(&info->lock);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t arizona_jackdet(int irq, void *data)
|
|
{
|
|
struct arizona_extcon_info *info = data;
|
|
struct arizona *arizona = info->arizona;
|
|
unsigned int val, present, mask;
|
|
int ret, i;
|
|
|
|
pm_runtime_get_sync(info->dev);
|
|
|
|
mutex_lock(&info->lock);
|
|
|
|
if (arizona->pdata.jd_gpio5) {
|
|
mask = ARIZONA_MICD_CLAMP_STS;
|
|
present = 0;
|
|
} else {
|
|
mask = ARIZONA_JD1_STS;
|
|
present = ARIZONA_JD1_STS;
|
|
}
|
|
|
|
ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val);
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to read jackdet status: %d\n",
|
|
ret);
|
|
mutex_unlock(&info->lock);
|
|
pm_runtime_put_autosuspend(info->dev);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
if ((val & mask) == present) {
|
|
dev_dbg(arizona->dev, "Detected jack\n");
|
|
ret = extcon_set_cable_state_(&info->edev,
|
|
ARIZONA_CABLE_MECHANICAL, true);
|
|
|
|
if (ret != 0)
|
|
dev_err(arizona->dev, "Mechanical report failed: %d\n",
|
|
ret);
|
|
|
|
arizona_start_mic(info);
|
|
} else {
|
|
dev_dbg(arizona->dev, "Detected jack removal\n");
|
|
|
|
arizona_stop_mic(info);
|
|
|
|
|
|
for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
|
|
input_report_key(info->input,
|
|
arizona_lvl_to_key[i].report, 0);
|
|
input_sync(info->input);
|
|
|
|
ret = extcon_update_state(&info->edev, 0xffffffff, 0);
|
|
if (ret != 0)
|
|
dev_err(arizona->dev, "Removal report failed: %d\n",
|
|
ret);
|
|
}
|
|
|
|
mutex_unlock(&info->lock);
|
|
|
|
pm_runtime_mark_last_busy(info->dev);
|
|
pm_runtime_put_autosuspend(info->dev);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int arizona_extcon_probe(struct platform_device *pdev)
|
|
{
|
|
struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
|
|
struct arizona_pdata *pdata;
|
|
struct arizona_extcon_info *info;
|
|
int jack_irq_fall, jack_irq_rise;
|
|
int ret, mode, i;
|
|
|
|
pdata = dev_get_platdata(arizona->dev);
|
|
|
|
info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
|
|
if (!info) {
|
|
dev_err(&pdev->dev, "Failed to allocate memory\n");
|
|
ret = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
info->micvdd = devm_regulator_get(arizona->dev, "MICVDD");
|
|
if (IS_ERR(info->micvdd)) {
|
|
ret = PTR_ERR(info->micvdd);
|
|
dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret);
|
|
goto err;
|
|
}
|
|
|
|
mutex_init(&info->lock);
|
|
info->arizona = arizona;
|
|
info->dev = &pdev->dev;
|
|
info->detecting = true;
|
|
platform_set_drvdata(pdev, info);
|
|
|
|
switch (arizona->type) {
|
|
case WM5102:
|
|
switch (arizona->rev) {
|
|
case 0:
|
|
info->micd_reva = true;
|
|
break;
|
|
default:
|
|
info->micd_clamp = true;
|
|
info->hpdet_ip = 1;
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
info->edev.name = "Headset Jack";
|
|
info->edev.supported_cable = arizona_cable;
|
|
|
|
ret = extcon_dev_register(&info->edev, arizona->dev);
|
|
if (ret < 0) {
|
|
dev_err(arizona->dev, "extcon_dev_register() failed: %d\n",
|
|
ret);
|
|
goto err;
|
|
}
|
|
|
|
if (pdata->num_micd_configs) {
|
|
info->micd_modes = pdata->micd_configs;
|
|
info->micd_num_modes = pdata->num_micd_configs;
|
|
} else {
|
|
info->micd_modes = micd_default_modes;
|
|
info->micd_num_modes = ARRAY_SIZE(micd_default_modes);
|
|
}
|
|
|
|
if (arizona->pdata.micd_pol_gpio > 0) {
|
|
if (info->micd_modes[0].gpio)
|
|
mode = GPIOF_OUT_INIT_HIGH;
|
|
else
|
|
mode = GPIOF_OUT_INIT_LOW;
|
|
|
|
ret = devm_gpio_request_one(&pdev->dev,
|
|
arizona->pdata.micd_pol_gpio,
|
|
mode,
|
|
"MICD polarity");
|
|
if (ret != 0) {
|
|
dev_err(arizona->dev, "Failed to request GPIO%d: %d\n",
|
|
arizona->pdata.micd_pol_gpio, ret);
|
|
goto err_register;
|
|
}
|
|
}
|
|
|
|
if (arizona->pdata.micd_bias_start_time)
|
|
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
|
|
ARIZONA_MICD_BIAS_STARTTIME_MASK,
|
|
arizona->pdata.micd_bias_start_time
|
|
<< ARIZONA_MICD_BIAS_STARTTIME_SHIFT);
|
|
|
|
/*
|
|
* If we have a clamp use it, activating in conjunction with
|
|
* GPIO5 if that is connected for jack detect operation.
|
|
*/
|
|
if (info->micd_clamp) {
|
|
if (arizona->pdata.jd_gpio5) {
|
|
/* Put the GPIO into input mode */
|
|
regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL,
|
|
0xc101);
|
|
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_MICD_CLAMP_CONTROL,
|
|
ARIZONA_MICD_CLAMP_MODE_MASK, 0x9);
|
|
} else {
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_MICD_CLAMP_CONTROL,
|
|
ARIZONA_MICD_CLAMP_MODE_MASK, 0x4);
|
|
}
|
|
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_JACK_DETECT_DEBOUNCE,
|
|
ARIZONA_MICD_CLAMP_DB,
|
|
ARIZONA_MICD_CLAMP_DB);
|
|
}
|
|
|
|
arizona_extcon_set_mode(info, 0);
|
|
|
|
info->input = devm_input_allocate_device(&pdev->dev);
|
|
if (!info->input) {
|
|
dev_err(arizona->dev, "Can't allocate input dev\n");
|
|
ret = -ENOMEM;
|
|
goto err_register;
|
|
}
|
|
|
|
for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
|
|
input_set_capability(info->input, EV_KEY,
|
|
arizona_lvl_to_key[i].report);
|
|
info->input->name = "Headset";
|
|
info->input->phys = "arizona/extcon";
|
|
info->input->dev.parent = &pdev->dev;
|
|
|
|
pm_runtime_enable(&pdev->dev);
|
|
pm_runtime_idle(&pdev->dev);
|
|
pm_runtime_get_sync(&pdev->dev);
|
|
|
|
if (arizona->pdata.jd_gpio5) {
|
|
jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE;
|
|
jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL;
|
|
} else {
|
|
jack_irq_rise = ARIZONA_IRQ_JD_RISE;
|
|
jack_irq_fall = ARIZONA_IRQ_JD_FALL;
|
|
}
|
|
|
|
ret = arizona_request_irq(arizona, jack_irq_rise,
|
|
"JACKDET rise", arizona_jackdet, info);
|
|
if (ret != 0) {
|
|
dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n",
|
|
ret);
|
|
goto err_input;
|
|
}
|
|
|
|
ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1);
|
|
if (ret != 0) {
|
|
dev_err(&pdev->dev, "Failed to set JD rise IRQ wake: %d\n",
|
|
ret);
|
|
goto err_rise;
|
|
}
|
|
|
|
ret = arizona_request_irq(arizona, jack_irq_fall,
|
|
"JACKDET fall", arizona_jackdet, info);
|
|
if (ret != 0) {
|
|
dev_err(&pdev->dev, "Failed to get JD fall IRQ: %d\n", ret);
|
|
goto err_rise_wake;
|
|
}
|
|
|
|
ret = arizona_set_irq_wake(arizona, jack_irq_fall, 1);
|
|
if (ret != 0) {
|
|
dev_err(&pdev->dev, "Failed to set JD fall IRQ wake: %d\n",
|
|
ret);
|
|
goto err_fall;
|
|
}
|
|
|
|
ret = arizona_request_irq(arizona, ARIZONA_IRQ_MICDET,
|
|
"MICDET", arizona_micdet, info);
|
|
if (ret != 0) {
|
|
dev_err(&pdev->dev, "Failed to get MICDET IRQ: %d\n", ret);
|
|
goto err_fall_wake;
|
|
}
|
|
|
|
ret = arizona_request_irq(arizona, ARIZONA_IRQ_HPDET,
|
|
"HPDET", arizona_hpdet_irq, info);
|
|
if (ret != 0) {
|
|
dev_err(&pdev->dev, "Failed to get HPDET IRQ: %d\n", ret);
|
|
goto err_micdet;
|
|
}
|
|
|
|
regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
|
|
ARIZONA_MICD_RATE_MASK,
|
|
8 << ARIZONA_MICD_RATE_SHIFT);
|
|
|
|
arizona_clk32k_enable(arizona);
|
|
regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_DEBOUNCE,
|
|
ARIZONA_JD1_DB, ARIZONA_JD1_DB);
|
|
regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
|
|
ARIZONA_JD1_ENA, ARIZONA_JD1_ENA);
|
|
|
|
ret = regulator_allow_bypass(info->micvdd, true);
|
|
if (ret != 0)
|
|
dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n",
|
|
ret);
|
|
|
|
pm_runtime_put(&pdev->dev);
|
|
|
|
ret = input_register_device(info->input);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "Can't register input device: %d\n", ret);
|
|
goto err_hpdet;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_hpdet:
|
|
arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info);
|
|
err_micdet:
|
|
arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info);
|
|
err_fall_wake:
|
|
arizona_set_irq_wake(arizona, jack_irq_fall, 0);
|
|
err_fall:
|
|
arizona_free_irq(arizona, jack_irq_fall, info);
|
|
err_rise_wake:
|
|
arizona_set_irq_wake(arizona, jack_irq_rise, 0);
|
|
err_rise:
|
|
arizona_free_irq(arizona, jack_irq_rise, info);
|
|
err_input:
|
|
err_register:
|
|
pm_runtime_disable(&pdev->dev);
|
|
extcon_dev_unregister(&info->edev);
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
static int arizona_extcon_remove(struct platform_device *pdev)
|
|
{
|
|
struct arizona_extcon_info *info = platform_get_drvdata(pdev);
|
|
struct arizona *arizona = info->arizona;
|
|
int jack_irq_rise, jack_irq_fall;
|
|
|
|
pm_runtime_disable(&pdev->dev);
|
|
|
|
regmap_update_bits(arizona->regmap,
|
|
ARIZONA_MICD_CLAMP_CONTROL,
|
|
ARIZONA_MICD_CLAMP_MODE_MASK, 0);
|
|
|
|
if (arizona->pdata.jd_gpio5) {
|
|
jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE;
|
|
jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL;
|
|
} else {
|
|
jack_irq_rise = ARIZONA_IRQ_JD_RISE;
|
|
jack_irq_fall = ARIZONA_IRQ_JD_FALL;
|
|
}
|
|
|
|
arizona_set_irq_wake(arizona, jack_irq_rise, 0);
|
|
arizona_set_irq_wake(arizona, jack_irq_fall, 0);
|
|
arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info);
|
|
arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info);
|
|
arizona_free_irq(arizona, jack_irq_rise, info);
|
|
arizona_free_irq(arizona, jack_irq_fall, info);
|
|
regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
|
|
ARIZONA_JD1_ENA, 0);
|
|
arizona_clk32k_disable(arizona);
|
|
extcon_dev_unregister(&info->edev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver arizona_extcon_driver = {
|
|
.driver = {
|
|
.name = "arizona-extcon",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = arizona_extcon_probe,
|
|
.remove = arizona_extcon_remove,
|
|
};
|
|
|
|
module_platform_driver(arizona_extcon_driver);
|
|
|
|
MODULE_DESCRIPTION("Arizona Extcon driver");
|
|
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:extcon-arizona");
|