extcon: max77693: Add support dock device and buttons
This patch support detection of dock device with extcon and buttons of dock device for playing music with input subsystem. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>hifive-unleashed-5.1
Chanwoo Choi
parent
d0587eb794
commit
39bf369e4e
|
|
@ -19,6 +19,7 @@
|
|||
#include <linux/module.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/input.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
|
@ -44,11 +45,15 @@ struct max77693_muic_info {
|
|||
int prev_cable_type;
|
||||
int prev_cable_type_gnd;
|
||||
int prev_chg_type;
|
||||
int prev_button_type;
|
||||
u8 status[2];
|
||||
|
||||
int irq;
|
||||
struct work_struct irq_work;
|
||||
struct mutex mutex;
|
||||
|
||||
/* Button of dock device */
|
||||
struct input_dev *dock;
|
||||
};
|
||||
|
||||
enum max77693_muic_cable_group {
|
||||
|
|
@ -156,7 +161,10 @@ enum {
|
|||
EXTCON_CABLE_JIG_USB_ON,
|
||||
EXTCON_CABLE_JIG_USB_OFF,
|
||||
EXTCON_CABLE_JIG_UART_OFF,
|
||||
EXTCON_CABLE_AUDIO_VIDEO_LOAD,
|
||||
EXTCON_CABLE_JIG_UART_ON,
|
||||
EXTCON_CABLE_DOCK_SMART,
|
||||
EXTCON_CABLE_DOCK_DESK,
|
||||
EXTCON_CABLE_DOCK_AUDIO,
|
||||
|
||||
_EXTCON_CABLE_NUM,
|
||||
};
|
||||
|
|
@ -173,7 +181,10 @@ const char *max77693_extcon_cable[] = {
|
|||
[EXTCON_CABLE_JIG_USB_ON] = "JIG-USB-ON",
|
||||
[EXTCON_CABLE_JIG_USB_OFF] = "JIG-USB-OFF",
|
||||
[EXTCON_CABLE_JIG_UART_OFF] = "JIG-UART-OFF",
|
||||
[EXTCON_CABLE_AUDIO_VIDEO_LOAD] = "Audio-video-load",
|
||||
[EXTCON_CABLE_JIG_UART_ON] = "Dock-Car",
|
||||
[EXTCON_CABLE_DOCK_SMART] = "Dock-Smart",
|
||||
[EXTCON_CABLE_DOCK_DESK] = "Dock-Desk",
|
||||
[EXTCON_CABLE_DOCK_AUDIO] = "Dock-Audio",
|
||||
|
||||
NULL,
|
||||
};
|
||||
|
|
@ -411,6 +422,96 @@ static int max77693_muic_get_cable_type(struct max77693_muic_info *info,
|
|||
return cable_type;
|
||||
}
|
||||
|
||||
static int max77693_muic_dock_handler(struct max77693_muic_info *info,
|
||||
int cable_type, bool attached)
|
||||
{
|
||||
int ret = 0;
|
||||
char dock_name[CABLE_NAME_MAX];
|
||||
|
||||
dev_info(info->dev,
|
||||
"external connector is %s (adc:0x%02x)\n",
|
||||
attached ? "attached" : "detached", cable_type);
|
||||
|
||||
switch (cable_type) {
|
||||
case MAX77693_MUIC_ADC_RESERVED_ACC_3: /* Dock-Smart */
|
||||
/* PATH:AP_USB */
|
||||
ret = max77693_muic_set_path(info,
|
||||
CONTROL1_SW_USB, attached);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
|
||||
/* Dock-Smart */
|
||||
extcon_set_cable_state(info->edev, "Dock-Smart", attached);
|
||||
goto out;
|
||||
case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON: /* Dock-Car */
|
||||
strcpy(dock_name, "Dock-Car");
|
||||
break;
|
||||
case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE: /* Dock-Desk */
|
||||
strcpy(dock_name, "Dock-Desk");
|
||||
break;
|
||||
case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD: /* Dock-Audio */
|
||||
strcpy(dock_name, "Dock-Audio");
|
||||
if (!attached)
|
||||
extcon_set_cable_state(info->edev, "USB", false);
|
||||
break;
|
||||
}
|
||||
|
||||
/* Dock-Car/Desk/Audio, PATH:AUDIO */
|
||||
ret = max77693_muic_set_path(info, CONTROL1_SW_AUDIO, attached);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
extcon_set_cable_state(info->edev, dock_name, attached);
|
||||
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int max77693_muic_dock_button_handler(struct max77693_muic_info *info,
|
||||
int button_type, bool attached)
|
||||
{
|
||||
struct input_dev *dock = info->dock;
|
||||
unsigned int code;
|
||||
int ret = 0;
|
||||
|
||||
switch (button_type) {
|
||||
case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON-1
|
||||
... MAX77693_MUIC_ADC_REMOTE_S3_BUTTON+1:
|
||||
/* DOCK_KEY_PREV */
|
||||
code = KEY_PREVIOUSSONG;
|
||||
break;
|
||||
case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON-1
|
||||
... MAX77693_MUIC_ADC_REMOTE_S7_BUTTON+1:
|
||||
/* DOCK_KEY_NEXT */
|
||||
code = KEY_NEXTSONG;
|
||||
break;
|
||||
case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON:
|
||||
/* DOCK_VOL_DOWN */
|
||||
code = KEY_VOLUMEDOWN;
|
||||
break;
|
||||
case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON:
|
||||
/* DOCK_VOL_UP */
|
||||
code = KEY_VOLUMEUP;
|
||||
break;
|
||||
case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON-1
|
||||
... MAX77693_MUIC_ADC_REMOTE_S12_BUTTON+1:
|
||||
/* DOCK_KEY_PLAY_PAUSE */
|
||||
code = KEY_PLAYPAUSE;
|
||||
break;
|
||||
default:
|
||||
dev_err(info->dev,
|
||||
"failed to detect %s key (adc:0x%x)\n",
|
||||
attached ? "pressed" : "released", button_type);
|
||||
ret = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
input_event(dock, EV_KEY, code, attached);
|
||||
input_sync(dock);
|
||||
|
||||
out:
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max77693_muic_adc_ground_handler(struct max77693_muic_info *info)
|
||||
{
|
||||
int cable_type_gnd;
|
||||
|
|
@ -494,6 +595,7 @@ out:
|
|||
static int max77693_muic_adc_handler(struct max77693_muic_info *info)
|
||||
{
|
||||
int cable_type;
|
||||
int button_type;
|
||||
bool attached;
|
||||
int ret = 0;
|
||||
|
||||
|
|
@ -519,31 +621,58 @@ static int max77693_muic_adc_handler(struct max77693_muic_info *info)
|
|||
if (ret < 0)
|
||||
goto out;
|
||||
break;
|
||||
case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON:
|
||||
case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE:
|
||||
/* Audio Video cable with no-load */
|
||||
ret = max77693_muic_set_path(info, CONTROL1_SW_AUDIO, attached);
|
||||
case MAX77693_MUIC_ADC_RESERVED_ACC_3: /* Dock-Smart */
|
||||
case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON: /* Dock-Car */
|
||||
case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE: /* Dock-Desk */
|
||||
case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD: /* Dock-Audio */
|
||||
/*
|
||||
* DOCK device
|
||||
*
|
||||
* The MAX77693 MUIC device can detect total 34 cable type
|
||||
* except of charger cable and MUIC device didn't define
|
||||
* specfic role of cable in the range of from 0x01 to 0x12
|
||||
* of ADC value. So, can use/define cable with no role according
|
||||
* to schema of hardware board.
|
||||
*/
|
||||
ret = max77693_muic_dock_handler(info, cable_type, attached);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
break;
|
||||
case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON: /* DOCK_KEY_PREV */
|
||||
case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON: /* DOCK_KEY_NEXT */
|
||||
case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON: /* DOCK_VOL_DOWN */
|
||||
case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON: /* DOCK_VOL_UP */
|
||||
case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON: /* DOCK_KEY_PLAY_PAUSE */
|
||||
/*
|
||||
* Button of DOCK device
|
||||
* - the Prev/Next/Volume Up/Volume Down/Play-Pause button
|
||||
*
|
||||
* The MAX77693 MUIC device can detect total 34 cable type
|
||||
* except of charger cable and MUIC device didn't define
|
||||
* specfic role of cable in the range of from 0x01 to 0x12
|
||||
* of ADC value. So, can use/define cable with no role according
|
||||
* to schema of hardware board.
|
||||
*/
|
||||
if (attached)
|
||||
button_type = info->prev_button_type = cable_type;
|
||||
else
|
||||
button_type = info->prev_button_type;
|
||||
|
||||
ret = max77693_muic_dock_button_handler(info, button_type,
|
||||
attached);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
extcon_set_cable_state(info->edev,
|
||||
"Audio-video-noload", attached);
|
||||
break;
|
||||
case MAX77693_MUIC_ADC_SEND_END_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S1_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S2_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S4_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S5_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S6_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S8_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S11_BUTTON:
|
||||
case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON:
|
||||
case MAX77693_MUIC_ADC_RESERVED_ACC_1:
|
||||
case MAX77693_MUIC_ADC_RESERVED_ACC_2:
|
||||
case MAX77693_MUIC_ADC_RESERVED_ACC_3:
|
||||
case MAX77693_MUIC_ADC_RESERVED_ACC_4:
|
||||
case MAX77693_MUIC_ADC_RESERVED_ACC_5:
|
||||
case MAX77693_MUIC_ADC_CEA936_AUDIO:
|
||||
|
|
@ -551,11 +680,12 @@ static int max77693_muic_adc_handler(struct max77693_muic_info *info)
|
|||
case MAX77693_MUIC_ADC_TTY_CONVERTER:
|
||||
case MAX77693_MUIC_ADC_UART_CABLE:
|
||||
case MAX77693_MUIC_ADC_CEA936A_TYPE1_CHG:
|
||||
case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD:
|
||||
case MAX77693_MUIC_ADC_CEA936A_TYPE2_CHG:
|
||||
/* This accessory isn't used in general case if it is specially
|
||||
needed to detect additional accessory, should implement
|
||||
proper operation when this accessory is attached/detached. */
|
||||
/*
|
||||
* This accessory isn't used in general case if it is specially
|
||||
* needed to detect additional accessory, should implement
|
||||
* proper operation when this accessory is attached/detached.
|
||||
*/
|
||||
dev_info(info->dev,
|
||||
"accessory is %s but it isn't used (adc:0x%x)\n",
|
||||
attached ? "attached" : "detached", cable_type);
|
||||
|
|
@ -576,6 +706,7 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
|
|||
{
|
||||
int chg_type;
|
||||
int cable_type_gnd;
|
||||
int cable_type;
|
||||
bool attached;
|
||||
bool cable_attached;
|
||||
int ret = 0;
|
||||
|
|
@ -590,35 +721,52 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
|
|||
|
||||
switch (chg_type) {
|
||||
case MAX77693_CHARGER_TYPE_USB:
|
||||
/*
|
||||
* MHL_TA(USB/TA) with MHL cable
|
||||
* - MHL cable include two port(HDMI line and separate micro
|
||||
* -usb port. When the target connect MHL cable, extcon driver
|
||||
* check whether MHL_TA(USB/TA) cable is connected. If MHL_TA
|
||||
* cable is connected, extcon driver notify state to notifiee
|
||||
* for charging battery.
|
||||
*/
|
||||
cable_type_gnd = max77693_muic_get_cable_type(info,
|
||||
MAX77693_CABLE_GROUP_ADC_GND,
|
||||
&cable_attached);
|
||||
|
||||
switch (cable_type_gnd) {
|
||||
case MAX77693_MUIC_GND_MHL:
|
||||
case MAX77693_MUIC_GND_MHL_VB:
|
||||
/*
|
||||
* USB/TA with MHL cable
|
||||
* - MHL cable, which connect micro USB or TA cable,
|
||||
* is used to charging battery. So, extcon driver check
|
||||
* charging type whether micro USB or TA cable is
|
||||
* connected to MHL cable when extcon driver detect MHL
|
||||
* cable.
|
||||
*/
|
||||
if (cable_type_gnd == MAX77693_MUIC_GND_MHL
|
||||
|| cable_type_gnd == MAX77693_MUIC_GND_MHL_VB) {
|
||||
extcon_set_cable_state(info->edev, "MHL_TA", attached);
|
||||
|
||||
if (!cable_attached)
|
||||
extcon_set_cable_state(info->edev,
|
||||
"MHL", false);
|
||||
break;
|
||||
default:
|
||||
/* Only USB cable, PATH:AP_USB */
|
||||
ret = max77693_muic_set_path(info, CONTROL1_SW_USB,
|
||||
attached);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
extcon_set_cable_state(info->edev, "USB", attached);
|
||||
"MHL", false);
|
||||
goto out;
|
||||
}
|
||||
|
||||
/*
|
||||
* USB/TA cable with Dock-Audio device
|
||||
* - Dock device include two port(Dock-Audio and micro-usb
|
||||
* port). When the target connect Dock-Audio device, extcon
|
||||
* driver check whether USB/TA cable is connected.
|
||||
* If USB/TA cable is connected, extcon driver notify state
|
||||
* to notifiee for charging battery.
|
||||
*/
|
||||
cable_type = max77693_muic_get_cable_type(info,
|
||||
MAX77693_CABLE_GROUP_ADC,
|
||||
&cable_attached);
|
||||
if (cable_type == MAX77693_MUIC_ADC_AV_CABLE_NOLOAD) {
|
||||
extcon_set_cable_state(info->edev, "USB", attached);
|
||||
|
||||
if (!cable_attached)
|
||||
extcon_set_cable_state(info->edev,
|
||||
"Dock-Audio", false);
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* Only USB cable, PATH:AP_USB */
|
||||
ret = max77693_muic_set_path(info, CONTROL1_SW_USB, attached);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
extcon_set_cable_state(info->edev, "USB", attached);
|
||||
break;
|
||||
case MAX77693_CHARGER_TYPE_DOWNSTREAM_PORT:
|
||||
extcon_set_cable_state(info->edev,
|
||||
|
|
@ -794,6 +942,32 @@ static int max77693_muic_probe(struct platform_device *pdev)
|
|||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
/* Register input device for button of dock device */
|
||||
info->dock = input_allocate_device();
|
||||
if (!info->dock) {
|
||||
dev_err(&pdev->dev, "%s: failed to allocate input\n", __func__);
|
||||
return -ENOMEM;
|
||||
}
|
||||
info->dock->name = "max77693-muic/dock";
|
||||
info->dock->phys = "max77693-muic/extcon";
|
||||
info->dock->dev.parent = &pdev->dev;
|
||||
|
||||
__set_bit(EV_REP, info->dock->evbit);
|
||||
|
||||
input_set_capability(info->dock, EV_KEY, KEY_VOLUMEUP);
|
||||
input_set_capability(info->dock, EV_KEY, KEY_VOLUMEDOWN);
|
||||
input_set_capability(info->dock, EV_KEY, KEY_PLAYPAUSE);
|
||||
input_set_capability(info->dock, EV_KEY, KEY_PREVIOUSSONG);
|
||||
input_set_capability(info->dock, EV_KEY, KEY_NEXTSONG);
|
||||
|
||||
ret = input_register_device(info->dock);
|
||||
if (ret < 0) {
|
||||
dev_err(&pdev->dev, "Cannot register input device error(%d)\n",
|
||||
ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, info);
|
||||
mutex_init(&info->mutex);
|
||||
|
||||
|
|
@ -870,7 +1044,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
|
|||
MAX77693_MUIC_REG_ID, &id);
|
||||
if (ret < 0) {
|
||||
dev_err(&pdev->dev, "failed to read revision number\n");
|
||||
goto err_irq;
|
||||
goto err_extcon;
|
||||
}
|
||||
dev_info(info->dev, "device ID : 0x%x\n", id);
|
||||
|
||||
|
|
@ -882,6 +1056,8 @@ static int max77693_muic_probe(struct platform_device *pdev)
|
|||
|
||||
return ret;
|
||||
|
||||
err_extcon:
|
||||
extcon_dev_unregister(info->edev);
|
||||
err_irq:
|
||||
while (--i >= 0)
|
||||
free_irq(muic_irqs[i].virq, info);
|
||||
|
|
@ -896,6 +1072,7 @@ static int max77693_muic_remove(struct platform_device *pdev)
|
|||
for (i = 0; i < ARRAY_SIZE(muic_irqs); i++)
|
||||
free_irq(muic_irqs[i].virq, info);
|
||||
cancel_work_sync(&info->irq_work);
|
||||
input_unregister_device(info->dock);
|
||||
extcon_dev_unregister(info->edev);
|
||||
|
||||
return 0;
|
||||
|
|
|
|||
Loading…
Reference in New Issue