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-rw-r--r--drivers/extcon/extcon-arizona.c38
-rw-r--r--drivers/extcon/extcon-axp288.c24
-rw-r--r--drivers/extcon/extcon-max14577.c45
-rw-r--r--drivers/extcon/extcon-max77693.c95
-rw-r--r--drivers/extcon/extcon-max77843.c56
-rw-r--r--drivers/extcon/extcon-max8997.c59
-rw-r--r--drivers/extcon/extcon-palmas.c22
-rw-r--r--drivers/extcon/extcon-rt8973a.c40
-rw-r--r--drivers/extcon/extcon-sm5502.c32
-rw-r--r--drivers/extcon/extcon-usb-gpio.c32
-rw-r--r--drivers/extcon/extcon.c163
-rw-r--r--drivers/usb/phy/phy-tahvo.c9
-rw-r--r--include/linux/extcon.h111
-rw-r--r--include/linux/extcon/extcon-adc-jack.h5
14 files changed, 320 insertions, 411 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 1ec06b4b4875..9262b45a4484 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -118,17 +118,12 @@ static const int arizona_micd_levels[] = {
1257,
};
-#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 const enum extcon arizona_cable[] = {
+ EXTCON_MECHANICAL,
+ EXTCON_MICROPHONE,
+ EXTCON_HEADPHONE,
+ EXTCON_LINE_OUT,
+ EXTCON_NONE,
};
static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info);
@@ -557,7 +552,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
struct arizona_extcon_info *info = data;
struct arizona *arizona = info->arizona;
int id_gpio = arizona->pdata.hpdet_id_gpio;
- int report = ARIZONA_CABLE_HEADPHONE;
+ enum extcon report = EXTCON_HEADPHONE;
int ret, reading;
bool mic = false;
@@ -571,7 +566,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
}
/* If the cable was removed while measuring ignore the result */
- ret = extcon_get_cable_state_(info->edev, ARIZONA_CABLE_MECHANICAL);
+ ret = extcon_get_cable_state_(info->edev, EXTCON_MECHANICAL);
if (ret < 0) {
dev_err(arizona->dev, "Failed to check cable state: %d\n",
ret);
@@ -602,9 +597,9 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
/* Report high impedence cables as line outputs */
if (reading >= 5000)
- report = ARIZONA_CABLE_LINEOUT;
+ report = EXTCON_LINE_OUT;
else
- report = ARIZONA_CABLE_HEADPHONE;
+ report = EXTCON_HEADPHONE;
ret = extcon_set_cable_state_(info->edev, report, true);
if (ret != 0)
@@ -689,8 +684,7 @@ err:
ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
/* Just report headphone */
- ret = extcon_set_cable_state_(info->edev,
- ARIZONA_CABLE_HEADPHONE, true);
+ ret = extcon_set_cable_state_(info->edev, EXTCON_HEADPHONE, true);
if (ret != 0)
dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
@@ -747,8 +741,7 @@ err:
ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
/* Just report headphone */
- ret = extcon_set_cable_state_(info->edev,
- ARIZONA_CABLE_HEADPHONE, true);
+ ret = extcon_set_cable_state_(info->edev, EXTCON_HEADPHONE, true);
if (ret != 0)
dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
@@ -787,7 +780,7 @@ static void arizona_micd_detect(struct work_struct *work)
mutex_lock(&info->lock);
/* If the cable was removed while measuring ignore the result */
- ret = extcon_get_cable_state_(info->edev, ARIZONA_CABLE_MECHANICAL);
+ ret = extcon_get_cable_state_(info->edev, EXTCON_MECHANICAL);
if (ret < 0) {
dev_err(arizona->dev, "Failed to check cable state: %d\n",
ret);
@@ -836,8 +829,7 @@ static void arizona_micd_detect(struct work_struct *work)
arizona_identify_headphone(info);
ret = extcon_set_cable_state_(info->edev,
- ARIZONA_CABLE_MICROPHONE, true);
-
+ EXTCON_MICROPHONE, true);
if (ret != 0)
dev_err(arizona->dev, "Headset report failed: %d\n",
ret);
@@ -1028,7 +1020,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
if (info->last_jackdet == present) {
dev_dbg(arizona->dev, "Detected jack\n");
ret = extcon_set_cable_state_(info->edev,
- ARIZONA_CABLE_MECHANICAL, true);
+ EXTCON_MECHANICAL, true);
if (ret != 0)
dev_err(arizona->dev, "Mechanical report failed: %d\n",
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index 8299adb9b676..3605aa96c25a 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -77,10 +77,6 @@
/* IRQ enable-6 register */
#define BC12_IRQ_CFG_MASK BIT(1)
-#define AXP288_EXTCON_SLOW_CHARGER "SLOW-CHARGER"
-#define AXP288_EXTCON_DOWNSTREAM_CHARGER "CHARGE-DOWNSTREAM"
-#define AXP288_EXTCON_FAST_CHARGER "FAST-CHARGER"
-
enum axp288_extcon_reg {
AXP288_PS_STAT_REG = 0x00,
AXP288_PS_BOOT_REASON_REG = 0x02,
@@ -105,11 +101,11 @@ enum axp288_extcon_irq {
EXTCON_IRQ_END,
};
-static const char *axp288_extcon_cables[] = {
- AXP288_EXTCON_SLOW_CHARGER,
- AXP288_EXTCON_DOWNSTREAM_CHARGER,
- AXP288_EXTCON_FAST_CHARGER,
- NULL,
+static const enum extcon axp288_extcon_cables[] = {
+ EXTCON_SLOW_CHARGER,
+ EXTCON_CHARGE_DOWNSTREAM,
+ EXTCON_FAST_CHARGER,
+ EXTCON_NONE,
};
struct axp288_extcon_info {
@@ -161,7 +157,7 @@ static void axp288_extcon_log_rsi(struct axp288_extcon_info *info)
static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
{
static bool notify_otg, notify_charger;
- static char *cable;
+ static enum extcon cable;
int ret, stat, cfg, pwr_stat;
u8 chrg_type;
bool vbus_attach = false;
@@ -196,18 +192,18 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
dev_dbg(info->dev, "sdp cable is connecetd\n");
notify_otg = true;
notify_charger = true;
- cable = AXP288_EXTCON_SLOW_CHARGER;
+ cable = EXTCON_SLOW_CHARGER;
break;
case DET_STAT_CDP:
dev_dbg(info->dev, "cdp cable is connecetd\n");
notify_otg = true;
notify_charger = true;
- cable = AXP288_EXTCON_DOWNSTREAM_CHARGER;
+ cable = EXTCON_CHARGE_DOWNSTREAM;
break;
case DET_STAT_DCP:
dev_dbg(info->dev, "dcp cable is connecetd\n");
notify_charger = true;
- cable = AXP288_EXTCON_FAST_CHARGER;
+ cable = EXTCON_FAST_CHARGER;
break;
default:
dev_warn(info->dev,
@@ -230,7 +226,7 @@ notify_otg:
}
if (notify_charger)
- extcon_set_cable_state(info->edev, cable, vbus_attach);
+ extcon_set_cable_state_(info->edev, cable, vbus_attach);
/* Clear the flags on disconnect event */
if (!vbus_attach)
diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
index ad8f8ddc8e51..e7c3edb5bd4b 100644
--- a/drivers/extcon/extcon-max14577.c
+++ b/drivers/extcon/extcon-max14577.c
@@ -148,27 +148,14 @@ enum max14577_muic_acc_type {
MAX14577_MUIC_ADC_OPEN,
};
-/* max14577 MUIC device support below list of accessories(external connector) */
-enum {
- EXTCON_CABLE_USB = 0,
- EXTCON_CABLE_TA,
- EXTCON_CABLE_FAST_CHARGER,
- EXTCON_CABLE_SLOW_CHARGER,
- EXTCON_CABLE_CHARGE_DOWNSTREAM,
- EXTCON_CABLE_JIG,
-
- _EXTCON_CABLE_NUM,
-};
-
-static const char *max14577_extcon_cable[] = {
- [EXTCON_CABLE_USB] = "USB",
- [EXTCON_CABLE_TA] = "TA",
- [EXTCON_CABLE_FAST_CHARGER] = "Fast-charger",
- [EXTCON_CABLE_SLOW_CHARGER] = "Slow-charger",
- [EXTCON_CABLE_CHARGE_DOWNSTREAM] = "Charge-downstream",
- [EXTCON_CABLE_JIG] = "JIG",
-
- NULL,
+static const enum extcon max14577_extcon_cable[] = {
+ EXTCON_USB,
+ EXTCON_TA,
+ EXTCON_FAST_CHARGER,
+ EXTCON_SLOW_CHARGER,
+ EXTCON_CHARGE_DOWNSTREAM,
+ EXTCON_JIG,
+ EXTCON_NONE,
};
/*
@@ -369,7 +356,7 @@ static int max14577_muic_jig_handler(struct max14577_muic_info *info,
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "JIG", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_JIG, attached);
return 0;
}
@@ -466,20 +453,22 @@ static int max14577_muic_chg_handler(struct max14577_muic_info *info)
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "USB", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
break;
case MAX14577_CHARGER_TYPE_DEDICATED_CHG:
- extcon_set_cable_state(info->edev, "TA", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_TA, attached);
break;
case MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT:
- extcon_set_cable_state(info->edev,
- "Charge-downstream", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_CHARGE_DOWNSTREAM,
+ attached);
break;
case MAX14577_CHARGER_TYPE_SPECIAL_500MA:
- extcon_set_cable_state(info->edev, "Slow-charger", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_SLOW_CHARGER,
+ attached);
break;
case MAX14577_CHARGER_TYPE_SPECIAL_1A:
- extcon_set_cable_state(info->edev, "Fast-charger", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_FAST_CHARGER,
+ attached);
break;
case MAX14577_CHARGER_TYPE_NONE:
case MAX14577_CHARGER_TYPE_DEAD_BATTERY:
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index c274249245ff..20e796e10e57 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -200,32 +200,17 @@ enum max77693_muic_acc_type {
/*
* MAX77693 MUIC device support below list of accessories(external connector)
*/
-enum {
- EXTCON_CABLE_USB = 0,
- EXTCON_CABLE_USB_HOST,
- EXTCON_CABLE_TA,
- EXTCON_CABLE_FAST_CHARGER,
- EXTCON_CABLE_SLOW_CHARGER,
- EXTCON_CABLE_CHARGE_DOWNSTREAM,
- EXTCON_CABLE_MHL,
- EXTCON_CABLE_JIG,
- EXTCON_CABLE_DOCK,
-
- _EXTCON_CABLE_NUM,
-};
-
-static const char *max77693_extcon_cable[] = {
- [EXTCON_CABLE_USB] = "USB",
- [EXTCON_CABLE_USB_HOST] = "USB-Host",
- [EXTCON_CABLE_TA] = "TA",
- [EXTCON_CABLE_FAST_CHARGER] = "Fast-charger",
- [EXTCON_CABLE_SLOW_CHARGER] = "Slow-charger",
- [EXTCON_CABLE_CHARGE_DOWNSTREAM] = "Charge-downstream",
- [EXTCON_CABLE_MHL] = "MHL",
- [EXTCON_CABLE_JIG] = "JIG",
- [EXTCON_CABLE_DOCK] = "DOCK",
-
- NULL,
+static const enum extcon max77693_extcon_cable[] = {
+ EXTCON_USB,
+ EXTCON_USB_HOST,
+ EXTCON_TA,
+ EXTCON_FAST_CHARGER,
+ EXTCON_SLOW_CHARGER,
+ EXTCON_CHARGE_DOWNSTREAM,
+ EXTCON_MHL,
+ EXTCON_JIG,
+ EXTCON_DOCK,
+ EXTCON_NONE,
};
/*
@@ -472,7 +457,7 @@ static int max77693_muic_dock_handler(struct max77693_muic_info *info,
int ret = 0;
int vbvolt;
bool cable_attached;
- char dock_name[CABLE_NAME_MAX];
+ enum extcon dock_id;
dev_info(info->dev,
"external connector is %s (adc:0x%02x)\n",
@@ -517,16 +502,16 @@ static int max77693_muic_dock_handler(struct max77693_muic_info *info,
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "DOCK", attached);
- extcon_set_cable_state(info->edev, "MHL", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_DOCK, attached);
+ extcon_set_cable_state_(info->edev, EXTCON_MHL, attached);
goto out;
case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE: /* Dock-Desk */
- strcpy(dock_name, "DOCK");
+ dock_id = EXTCON_DOCK;
break;
case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD: /* Dock-Audio */
- strcpy(dock_name, "DOCK");
+ dock_id = EXTCON_DOCK;
if (!attached)
- extcon_set_cable_state(info->edev, "USB", false);
+ extcon_set_cable_state_(info->edev, EXTCON_USB, false);
break;
default:
dev_err(info->dev, "failed to detect %s dock device\n",
@@ -538,7 +523,7 @@ static int max77693_muic_dock_handler(struct max77693_muic_info *info,
ret = max77693_muic_set_path(info, CONTROL1_SW_AUDIO, attached);
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, dock_name, attached);
+ extcon_set_cable_state_(info->edev, dock_id, attached);
out:
return 0;
@@ -603,20 +588,19 @@ static int max77693_muic_adc_ground_handler(struct max77693_muic_info *info)
ret = max77693_muic_set_path(info, CONTROL1_SW_USB, attached);
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "USB-Host", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, attached);
break;
case MAX77693_MUIC_GND_AV_CABLE_LOAD:
/* Audio Video Cable with load, PATH:AUDIO */
ret = max77693_muic_set_path(info, CONTROL1_SW_AUDIO, attached);
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev,
- "Audio-video-load", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
break;
case MAX77693_MUIC_GND_MHL:
case MAX77693_MUIC_GND_MHL_VB:
/* MHL or MHL with USB/TA cable */
- extcon_set_cable_state(info->edev, "MHL", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_MHL, attached);
break;
default:
dev_err(info->dev, "failed to detect %s cable of gnd type\n",
@@ -658,7 +642,7 @@ static int max77693_muic_jig_handler(struct max77693_muic_info *info,
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "JIG", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_JIG, attached);
return 0;
}
@@ -812,10 +796,10 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
* - Support charging through micro-usb port without
* data connection
*/
- extcon_set_cable_state(info->edev, "TA", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_TA, attached);
if (!cable_attached)
- extcon_set_cable_state(info->edev,
- "MHL", cable_attached);
+ extcon_set_cable_state_(info->edev, EXTCON_MHL,
+ cable_attached);
break;
}
@@ -838,11 +822,12 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
* - Support charging through micro-usb port without
* data connection.
*/
- extcon_set_cable_state(info->edev, "USB", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_USB,
+ attached);
if (!cable_attached)
- extcon_set_cable_state(info->edev, "DOCK",
- cable_attached);
+ extcon_set_cable_state_(info->edev, EXTCON_DOCK,
+ cable_attached);
break;
case MAX77693_MUIC_ADC_RESERVED_ACC_3: /* Dock-Smart */
/*
@@ -870,9 +855,10 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "DOCK", attached);
- extcon_set_cable_state(info->edev, "MHL", attached);
-
+ extcon_set_cable_state_(info->edev, EXTCON_DOCK,
+ attached);
+ extcon_set_cable_state_(info->edev, EXTCON_MHL,
+ attached);
break;
}
@@ -905,23 +891,26 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "USB", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_USB,
+ attached);
break;
case MAX77693_CHARGER_TYPE_DEDICATED_CHG:
/* Only TA cable */
- extcon_set_cable_state(info->edev, "TA", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_TA, attached);
break;
}
break;
case MAX77693_CHARGER_TYPE_DOWNSTREAM_PORT:
- extcon_set_cable_state(info->edev,
- "Charge-downstream", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_CHARGE_DOWNSTREAM,
+ attached);
break;
case MAX77693_CHARGER_TYPE_APPLE_500MA:
- extcon_set_cable_state(info->edev, "Slow-charger", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_SLOW_CHARGER,
+ attached);
break;
case MAX77693_CHARGER_TYPE_APPLE_1A_2A:
- extcon_set_cable_state(info->edev, "Fast-charger", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_FAST_CHARGER,
+ attached);
break;
case MAX77693_CHARGER_TYPE_DEAD_BATTERY:
break;
diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c
index 5746d7bc165f..d78a64d7fc20 100644
--- a/drivers/extcon/extcon-max77843.c
+++ b/drivers/extcon/extcon-max77843.c
@@ -118,28 +118,16 @@ enum max77843_muic_charger_type {
MAX77843_MUIC_CHG_GND,
};
-enum {
- MAX77843_CABLE_USB = 0,
- MAX77843_CABLE_USB_HOST,
- MAX77843_CABLE_TA,
- MAX77843_CABLE_CHARGE_DOWNSTREAM,
- MAX77843_CABLE_FAST_CHARGER,
- MAX77843_CABLE_SLOW_CHARGER,
- MAX77843_CABLE_MHL,
- MAX77843_CABLE_JIG,
-
- MAX77843_CABLE_NUM,
-};
-
-static const char *max77843_extcon_cable[] = {
- [MAX77843_CABLE_USB] = "USB",
- [MAX77843_CABLE_USB_HOST] = "USB-HOST",
- [MAX77843_CABLE_TA] = "TA",
- [MAX77843_CABLE_CHARGE_DOWNSTREAM] = "CHARGER-DOWNSTREAM",
- [MAX77843_CABLE_FAST_CHARGER] = "FAST-CHARGER",
- [MAX77843_CABLE_SLOW_CHARGER] = "SLOW-CHARGER",
- [MAX77843_CABLE_MHL] = "MHL",
- [MAX77843_CABLE_JIG] = "JIG",
+static const enum extcon max77843_extcon_cable[] = {
+ EXTCON_USB,
+ EXTCON_USB_HOST,
+ EXTCON_TA,
+ EXTCON_CHARGE_DOWNSTREAM,
+ EXTCON_FAST_CHARGER,
+ EXTCON_SLOW_CHARGER,
+ EXTCON_MHL,
+ EXTCON_JIG,
+ EXTCON_NONE,
};
struct max77843_muic_irq {
@@ -354,7 +342,7 @@ static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info)
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "USB-HOST", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, attached);
break;
case MAX77843_MUIC_GND_MHL_VB:
case MAX77843_MUIC_GND_MHL:
@@ -362,7 +350,7 @@ static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info)
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "MHL", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_MHL, attached);
break;
default:
dev_err(info->dev, "failed to detect %s accessory(gnd:0x%x)\n",
@@ -398,7 +386,7 @@ static int max77843_muic_jig_handler(struct max77843_muic_info *info,
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "JIG", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_JIG, attached);
return 0;
}
@@ -490,36 +478,38 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "USB", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
break;
case MAX77843_MUIC_CHG_DOWNSTREAM:
ret = max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached);
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev,
- "CHARGER-DOWNSTREAM", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_CHARGE_DOWNSTREAM,
+ attached);
break;
case MAX77843_MUIC_CHG_DEDICATED:
ret = max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached);
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "TA", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_TA, attached);
break;
case MAX77843_MUIC_CHG_SPECIAL_500MA:
ret = max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached);
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "SLOW-CHAREGER", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_SLOW_CHARGER,
+ attached);
break;
case MAX77843_MUIC_CHG_SPECIAL_1A:
ret = max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached);
if (ret < 0)
return ret;
- extcon_set_cable_state(info->edev, "FAST-CHARGER", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_FAST_CHARGER,
+ attached);
break;
case MAX77843_MUIC_CHG_GND:
gnd_type = max77843_muic_get_cable_type(info,
@@ -527,9 +517,9 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
/* Charger cable on MHL accessory is attach or detach */
if (gnd_type == MAX77843_MUIC_GND_MHL_VB)
- extcon_set_cable_state(info->edev, "TA", true);
+ extcon_set_cable_state_(info->edev, EXTCON_TA, true);
else if (gnd_type == MAX77843_MUIC_GND_MHL)
- extcon_set_cable_state(info->edev, "TA", false);
+ extcon_set_cable_state_(info->edev, EXTCON_TA, false);
break;
case MAX77843_MUIC_CHG_NONE:
break;
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 33613c490d34..4d10949c6eb2 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -145,32 +145,17 @@ struct max8997_muic_info {
int path_uart;
};
-enum {
- EXTCON_CABLE_USB = 0,
- EXTCON_CABLE_USB_HOST,
- EXTCON_CABLE_TA,
- EXTCON_CABLE_FAST_CHARGER,
- EXTCON_CABLE_SLOW_CHARGER,
- EXTCON_CABLE_CHARGE_DOWNSTREAM,
- EXTCON_CABLE_MHL,
- EXTCON_CABLE_DOCK,
- EXTCON_CABLE_JIG,
-
- _EXTCON_CABLE_NUM,
-};
-
-static const char *max8997_extcon_cable[] = {
- [EXTCON_CABLE_USB] = "USB",
- [EXTCON_CABLE_USB_HOST] = "USB-Host",
- [EXTCON_CABLE_TA] = "TA",
- [EXTCON_CABLE_FAST_CHARGER] = "Fast-charger",
- [EXTCON_CABLE_SLOW_CHARGER] = "Slow-charger",
- [EXTCON_CABLE_CHARGE_DOWNSTREAM] = "Charge-downstream",
- [EXTCON_CABLE_MHL] = "MHL",
- [EXTCON_CABLE_DOCK] = "DOCK",
- [EXTCON_CABLE_JIG] = "JIG",
-
- NULL,
+static const enum extcon max8997_extcon_cable[] = {
+ EXTCON_USB,
+ EXTCON_USB_HOST,
+ EXTCON_TA,
+ EXTCON_FAST_CHARGER,
+ EXTCON_SLOW_CHARGER,
+ EXTCON_CHARGE_DOWNSTREAM,
+ EXTCON_MHL,
+ EXTCON_DOCK,
+ EXTCON_JIG,
+ EXTCON_NONE,
};
/*
@@ -345,10 +330,10 @@ static int max8997_muic_handle_usb(struct max8997_muic_info *info,
switch (usb_type) {
case MAX8997_USB_HOST:
- extcon_set_cable_state(info->edev, "USB-Host", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, attached);
break;
case MAX8997_USB_DEVICE:
- extcon_set_cable_state(info->edev, "USB", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
break;
default:
dev_err(info->dev, "failed to detect %s usb cable\n",
@@ -373,7 +358,7 @@ static int max8997_muic_handle_dock(struct max8997_muic_info *info,
switch (cable_type) {
case MAX8997_MUIC_ADC_AV_CABLE_NOLOAD:
case MAX8997_MUIC_ADC_FACTORY_MODE_UART_ON:
- extcon_set_cable_state(info->edev, "DOCK", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_DOCK, attached);
break;
default:
dev_err(info->dev, "failed to detect %s dock device\n",
@@ -396,7 +381,7 @@ static int max8997_muic_handle_jig_uart(struct max8997_muic_info *info,
return ret;
}
- extcon_set_cable_state(info->edev, "JIG", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_JIG, attached);
return 0;
}
@@ -418,7 +403,7 @@ static int max8997_muic_adc_handler(struct max8997_muic_info *info)
return ret;
break;
case MAX8997_MUIC_ADC_MHL:
- extcon_set_cable_state(info->edev, "MHL", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_MHL, attached);
break;
case MAX8997_MUIC_ADC_FACTORY_MODE_USB_OFF:
case MAX8997_MUIC_ADC_FACTORY_MODE_USB_ON:
@@ -501,17 +486,19 @@ static int max8997_muic_chg_handler(struct max8997_muic_info *info)
}
break;
case MAX8997_CHARGER_TYPE_DOWNSTREAM_PORT:
- extcon_set_cable_state(info->edev,
- "Charge-downstream", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_CHARGE_DOWNSTREAM,
+ attached);
break;
case MAX8997_CHARGER_TYPE_DEDICATED_CHG:
- extcon_set_cable_state(info->edev, "TA", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_TA, attached);
break;
case MAX8997_CHARGER_TYPE_500MA:
- extcon_set_cable_state(info->edev, "Slow-charger", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_SLOW_CHARGER,
+ attached);
break;
case MAX8997_CHARGER_TYPE_1A:
- extcon_set_cable_state(info->edev, "Fast-charger", attached);
+ extcon_set_cable_state_(info->edev, EXTCON_FAST_CHARGER,
+ attached);
break;
default:
dev_err(info->dev,
diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 9c8943d691b1..d68954045a33 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -29,10 +29,10 @@
#include <linux/of.h>
#include <linux/of_platform.h>
-static const char *palmas_extcon_cable[] = {
- [0] = "USB",
- [1] = "USB-HOST",
- NULL,
+static const enum extcon palmas_extcon_cable[] = {
+ EXTCON_USB,
+ EXTCON_USB_HOST,
+ EXTCON_NONE,
};
static const int mutually_exclusive[] = {0x3, 0x0};
@@ -49,6 +49,7 @@ static void palmas_usb_wakeup(struct palmas *palmas, int enable)
static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
{
struct palmas_usb *palmas_usb = _palmas_usb;
+ struct extcon_dev *edev = palmas_usb->edev;
unsigned int vbus_line_state;
palmas_read(palmas_usb->palmas, PALMAS_INTERRUPT_BASE,
@@ -57,7 +58,7 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
if (vbus_line_state & PALMAS_INT3_LINE_STATE_VBUS) {
if (palmas_usb->linkstat != PALMAS_USB_STATE_VBUS) {
palmas_usb->linkstat = PALMAS_USB_STATE_VBUS;
- extcon_set_cable_state(palmas_usb->edev, "USB", true);
+ extcon_set_cable_state_(edev, EXTCON_USB, true);
dev_info(palmas_usb->dev, "USB cable is attached\n");
} else {
dev_dbg(palmas_usb->dev,
@@ -66,7 +67,7 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
} else if (!(vbus_line_state & PALMAS_INT3_LINE_STATE_VBUS)) {
if (palmas_usb->linkstat == PALMAS_USB_STATE_VBUS) {
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
- extcon_set_cable_state(palmas_usb->edev, "USB", false);
+ extcon_set_cable_state_(edev, EXTCON_USB, false);
dev_info(palmas_usb->dev, "USB cable is detached\n");
} else {
dev_dbg(palmas_usb->dev,
@@ -81,6 +82,7 @@ static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
{
unsigned int set, id_src;
struct palmas_usb *palmas_usb = _palmas_usb;
+ struct extcon_dev *edev = palmas_usb->edev;
palmas_read(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
PALMAS_USB_ID_INT_LATCH_SET, &set);
@@ -93,7 +95,7 @@ static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
PALMAS_USB_ID_INT_LATCH_CLR,
PALMAS_USB_ID_INT_EN_HI_CLR_ID_GND);
palmas_usb->linkstat = PALMAS_USB_STATE_ID;
- extcon_set_cable_state(palmas_usb->edev, "USB-HOST", true);
+ extcon_set_cable_state_(edev, EXTCON_USB_HOST, true);
dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
} else if ((set & PALMAS_USB_ID_INT_SRC_ID_FLOAT) &&
(id_src & PALMAS_USB_ID_INT_SRC_ID_FLOAT)) {
@@ -101,17 +103,17 @@ static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
PALMAS_USB_ID_INT_LATCH_CLR,
PALMAS_USB_ID_INT_EN_HI_CLR_ID_FLOAT);
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
- extcon_set_cable_state(palmas_usb->edev, "USB-HOST", false);
+ extcon_set_cable_state_(edev, EXTCON_USB_HOST, false);
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
} else if ((palmas_usb->linkstat == PALMAS_USB_STATE_ID) &&
(!(set & PALMAS_USB_ID_INT_SRC_ID_GND))) {
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
- extcon_set_cable_state(palmas_usb->edev, "USB-HOST", false);
+ extcon_set_cable_state_(edev, EXTCON_USB_HOST, false);
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
} else if ((palmas_usb->linkstat == PALMAS_USB_STATE_DISCONNECT) &&
(id_src & PALMAS_USB_ID_INT_SRC_ID_GND)) {
palmas_usb->linkstat = PALMAS_USB_STATE_ID;
- extcon_set_cable_state(palmas_usb->edev, "USB-HOST", true);
+ extcon_set_cable_state_(edev, EXTCON_USB_HOST, true);
dev_info(palmas_usb->dev, " USB-HOST cable is attached\n");
}
diff --git a/drivers/extcon/extcon-rt8973a.c b/drivers/extcon/extcon-rt8973a.c
index 04447f36c994..f2a8672cbf82 100644
--- a/drivers/extcon/extcon-rt8973a.c
+++ b/drivers/extcon/extcon-rt8973a.c
@@ -90,21 +90,12 @@ static struct reg_data rt8973a_reg_data[] = {
};
/* List of detectable cables */
-enum {
- EXTCON_CABLE_USB = 0,
- EXTCON_CABLE_USB_HOST,
- EXTCON_CABLE_TA,
- EXTCON_CABLE_JIG,
-
- EXTCON_CABLE_END,
-};
-
-static const char *rt8973a_extcon_cable[] = {
- [EXTCON_CABLE_USB] = "USB",
- [EXTCON_CABLE_USB_HOST] = "USB-Host",
- [EXTCON_CABLE_TA] = "TA",
- [EXTCON_CABLE_JIG] = "JIG",
- NULL,
+static const enum extcon rt8973a_extcon_cable[] = {
+ EXTCON_USB,
+ EXTCON_USB_HOST,
+ EXTCON_TA,
+ EXTCON_JIG,
+ EXTCON_NONE,
};
/* Define OVP (Over Voltage Protection), OTP (Over Temperature Protection) */
@@ -307,14 +298,11 @@ static int rt8973a_muic_cable_handler(struct rt8973a_muic_info *info,
enum rt8973a_event_type event)
{
static unsigned int prev_cable_type;
- const char **cable_names = info->edev->supported_cable;
unsigned int con_sw = DM_DP_SWITCH_UART;
- int ret, idx = 0, cable_type;
+ int ret, cable_type;
+ enum extcon id;
bool attached = false;
- if (!cable_names)
- return 0;
-
switch (event) {
case RT8973A_EVENT_ATTACH:
cable_type = rt8973a_muic_get_cable_type(info);
@@ -341,25 +329,25 @@ static int rt8973a_muic_cable_handler(struct rt8973a_muic_info *info,
switch (cable_type) {
case RT8973A_MUIC_ADC_OTG:
- idx = EXTCON_CABLE_USB_HOST;
+ id = EXTCON_USB_HOST;
con_sw = DM_DP_SWITCH_USB;
break;
case RT8973A_MUIC_ADC_TA:
- idx = EXTCON_CABLE_TA;
+ id = EXTCON_TA;
con_sw = DM_DP_SWITCH_OPEN;
break;
case RT8973A_MUIC_ADC_FACTORY_MODE_BOOT_OFF_USB:
case RT8973A_MUIC_ADC_FACTORY_MODE_BOOT_ON_USB:
- idx = EXTCON_CABLE_JIG;
+ id = EXTCON_JIG;
con_sw = DM_DP_SWITCH_USB;
break;
case RT8973A_MUIC_ADC_FACTORY_MODE_BOOT_OFF_UART:
case RT8973A_MUIC_ADC_FACTORY_MODE_BOOT_ON_UART:
- idx = EXTCON_CABLE_JIG;
+ id = EXTCON_JIG;
con_sw = DM_DP_SWITCH_UART;
break;
case RT8973A_MUIC_ADC_USB:
- idx = EXTCON_CABLE_USB;
+ id = EXTCON_USB;
con_sw = DM_DP_SWITCH_USB;
break;
case RT8973A_MUIC_ADC_OPEN:
@@ -409,7 +397,7 @@ static int rt8973a_muic_cable_handler(struct rt8973a_muic_info *info,
return ret;
/* Change the state of external accessory */
- extcon_set_cable_state(info->edev, cable_names[idx], attached);
+ extcon_set_cable_state_(info->edev, id, attached);
return 0;
}
diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c
index 6f1d11f8723b..520693d6fa8a 100644
--- a/drivers/extcon/extcon-sm5502.c
+++ b/drivers/extcon/extcon-sm5502.c
@@ -92,19 +92,11 @@ static struct reg_data sm5502_reg_data[] = {
};
/* List of detectable cables */
-enum {
- EXTCON_CABLE_USB = 0,
- EXTCON_CABLE_USB_HOST,
- EXTCON_CABLE_TA,
-
- EXTCON_CABLE_END,
-};
-
-static const char *sm5502_extcon_cable[] = {
- [EXTCON_CABLE_USB] = "USB",
- [EXTCON_CABLE_USB_HOST] = "USB-Host",
- [EXTCON_CABLE_TA] = "TA",
- NULL,
+static const enum extcon sm5502_extcon_cable[] = {
+ EXTCON_USB,
+ EXTCON_USB_HOST,
+ EXTCON_TA,
+ EXTCON_NONE,
};
/* Define supported accessory type */
@@ -377,16 +369,12 @@ static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
bool attached)
{
static unsigned int prev_cable_type = SM5502_MUIC_ADC_GROUND;
- const char **cable_names = info->edev->supported_cable;
unsigned int cable_type = SM5502_MUIC_ADC_GROUND;
unsigned int con_sw = DM_DP_SWITCH_OPEN;
unsigned int vbus_sw = VBUSIN_SWITCH_OPEN;
- unsigned int idx = 0;
+ enum extcon id;
int ret;
- if (!cable_names)
- return 0;
-
/* Get the type of attached or detached cable */
if (attached)
cable_type = sm5502_muic_get_cable_type(info);
@@ -396,17 +384,17 @@ static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
switch (cable_type) {
case SM5502_MUIC_ADC_OPEN_USB:
- idx = EXTCON_CABLE_USB;
+ id = EXTCON_USB;
con_sw = DM_DP_SWITCH_USB;
vbus_sw = VBUSIN_SWITCH_VBUSOUT_WITH_USB;
break;
case SM5502_MUIC_ADC_OPEN_TA:
- idx = EXTCON_CABLE_TA;
+ id = EXTCON_TA;
con_sw = DM_DP_SWITCH_OPEN;
vbus_sw = VBUSIN_SWITCH_VBUSOUT;
break;
case SM5502_MUIC_ADC_OPEN_USB_OTG:
- idx = EXTCON_CABLE_USB_HOST;
+ id = EXTCON_USB_HOST;
con_sw = DM_DP_SWITCH_USB;
vbus_sw = VBUSIN_SWITCH_OPEN;
break;
@@ -422,7 +410,7 @@ static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
return ret;
/* Change the state of external accessory */
- extcon_set_cable_state(info->edev, cable_names[idx], attached);
+ extcon_set_cable_state_(info->edev, id, attached);
return 0;
}
diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
index 900744b978fc..14da94cb57fa 100644
--- a/drivers/extcon/extcon-usb-gpio.c
+++ b/drivers/extcon/extcon-usb-gpio.c
@@ -39,18 +39,10 @@ struct usb_extcon_info {
struct delayed_work wq_detcable;
};
-/* List of detectable cables */
-enum {
- EXTCON_CABLE_USB = 0,
- EXTCON_CABLE_USB_HOST,
-
- EXTCON_CABLE_END,
-};
-
-static const char *usb_extcon_cable[] = {
- [EXTCON_CABLE_USB] = "USB",
- [EXTCON_CABLE_USB_HOST] = "USB-HOST",
- NULL,
+static const enum extcon usb_extcon_cable[] = {
+ EXTCON_USB,
+ EXTCON_USB_HOST,
+ EXTCON_NONE,
};
static void usb_extcon_detect_cable(struct work_struct *work)
@@ -68,24 +60,16 @@ static void usb_extcon_detect_cable(struct work_struct *work)
* As we don't have event for USB peripheral cable attached,
* we simulate USB peripheral attach here.
*/
- extcon_set_cable_state(info->edev,
- usb_extcon_cable[EXTCON_CABLE_USB_HOST],
- false);
- extcon_set_cable_state(info->edev,
- usb_extcon_cable[EXTCON_CABLE_USB],
- true);
+ extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, false);
+ extcon_set_cable_state_(info->edev, EXTCON_USB, true);
} else {
/*
* ID = 0 means USB HOST cable attached.
* As we don't have event for USB peripheral cable detached,
* we simulate USB peripheral detach here.
*/
- extcon_set_cable_state(info->edev,
- usb_extcon_cable[EXTCON_CABLE_USB],
- false);
- extcon_set_cable_state(info->edev,
- usb_extcon_cable[EXTCON_CABLE_USB_HOST],
- true);
+ extcon_set_cable_state_(info->edev, EXTCON_USB, false);
+ extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, true);
}
}
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 2fb5f757e811..a57355fc8fea 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -3,6 +3,9 @@
*
* External connector (extcon) class driver
*
+ * Copyright (C) 2015 Samsung Electronics
+ * Author: Chanwoo Choi <cw00.choi@samsung.com>
+ *
* Copyright (C) 2012 Samsung Electronics
* Author: Donggeun Kim <dg77.kim@samsung.com>
* Author: MyungJoo Ham <myungjoo.ham@samsung.com>
@@ -32,36 +35,32 @@
#include <linux/slab.h>
#include <linux/sysfs.h>
-/*
- * extcon_cable_name suggests the standard cable names for commonly used
- * cable types.
- *
- * However, please do not use extcon_cable_name directly for extcon_dev
- * struct's supported_cable pointer unless your device really supports
- * every single port-type of the following cable names. Please choose cable
- * names that are actually used in your extcon device.
- */
-const char extcon_cable_name[][CABLE_NAME_MAX + 1] = {
+#define SUPPORTED_CABLE_MAX 32
+#define CABLE_NAME_MAX 30
+
+static const char *extcon_name[] = {
[EXTCON_USB] = "USB",
[EXTCON_USB_HOST] = "USB-Host",
[EXTCON_TA] = "TA",
[EXTCON_FAST_CHARGER] = "Fast-charger",
[EXTCON_SLOW_CHARGER] = "Slow-charger",
[EXTCON_CHARGE_DOWNSTREAM] = "Charge-downstream",
+ [EXTCON_LINE_IN] = "Line-in",
+ [EXTCON_LINE_OUT] = "Line-out",
+ [EXTCON_MICROPHONE] = "Microphone",
+ [EXTCON_HEADPHONE] = "Headphone",
[EXTCON_HDMI] = "HDMI",
[EXTCON_MHL] = "MHL",
[EXTCON_DVI] = "DVI",
[EXTCON_VGA] = "VGA",
- [EXTCON_DOCK] = "Dock",
- [EXTCON_LINE_IN] = "Line-in",
- [EXTCON_LINE_OUT] = "Line-out",
- [EXTCON_MIC_IN] = "Microphone",
- [EXTCON_HEADPHONE_OUT] = "Headphone",
[EXTCON_SPDIF_IN] = "SPDIF-in",
[EXTCON_SPDIF_OUT] = "SPDIF-out",
[EXTCON_VIDEO_IN] = "Video-in",
[EXTCON_VIDEO_OUT] = "Video-out",
+ [EXTCON_DOCK] = "Dock",
+ [EXTCON_JIG] = "JIG",
[EXTCON_MECHANICAL] = "Mechanical",
+ NULL,
};
static struct class *extcon_class;
@@ -101,6 +100,43 @@ static int check_mutually_exclusive(struct extcon_dev *edev, u32 new_state)
return 0;
}
+static int find_cable_index_by_id(struct extcon_dev *edev, const enum extcon id)
+{
+ int i;
+
+ /* Find the the index of extcon cable in edev->supported_cable */
+ for (i = 0; i < edev->max_supported; i++) {
+ if (edev->supported_cable[i] == id)
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+static int find_cable_index_by_name(struct extcon_dev *edev, const char *name)
+{
+ enum extcon id = EXTCON_NONE;
+ int i;
+
+ if (edev->max_supported == 0)
+ return -EINVAL;
+
+ /* Find the the number of extcon cable */
+ for (i = 0; i < EXTCON_END; i++) {
+ if (!extcon_name[i])
+ continue;
+ if (!strncmp(extcon_name[i], name, CABLE_NAME_MAX)) {
+ id = i;
+ break;
+ }
+ }
+
+ if (id == EXTCON_NONE)
+ return -EINVAL;
+
+ return find_cable_index_by_id(edev, id);
+}
+
static ssize_t state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -118,11 +154,9 @@ static ssize_t state_show(struct device *dev, struct device_attribute *attr,
if (edev->max_supported == 0)
return sprintf(buf, "%u\n", edev->state);
- for (i = 0; i < SUPPORTED_CABLE_MAX; i++) {
- if (!edev->supported_cable[i])
- break;
+ for (i = 0; i < edev->max_supported; i++) {
count += sprintf(buf + count, "%s=%d\n",
- edev->supported_cable[i],
+ extcon_name[edev->supported_cable[i]],
!!(edev->state & (1 << i)));
}
@@ -171,9 +205,10 @@ static ssize_t cable_name_show(struct device *dev,
{
struct extcon_cable *cable = container_of(attr, struct extcon_cable,
attr_name);
+ int i = cable->cable_index;
return sprintf(buf, "%s\n",
- cable->edev->supported_cable[cable->cable_index]);
+ extcon_name[cable->edev->supported_cable[i]]);
}
static ssize_t cable_state_show(struct device *dev,
@@ -283,39 +318,19 @@ int extcon_set_state(struct extcon_dev *edev, u32 state)
EXPORT_SYMBOL_GPL(extcon_set_state);
/**
- * extcon_find_cable_index() - Get the cable index based on the cable name.
+ * extcon_get_cable_state_() - Get the status of a specific cable.
* @edev: the extcon device that has the cable.
- * @cable_name: cable name to be searched.
- *
- * Note that accessing a cable state based on cable_index is faster than
- * cable_name because using cable_name induces a loop with strncmp().
- * Thus, when get/set_cable_state is repeatedly used, using cable_index
- * is recommended.
+ * @id: the unique id of each external connector in extcon enumeration.
*/
-int extcon_find_cable_index(struct extcon_dev *edev, const char *cable_name)
+int extcon_get_cable_state_(struct extcon_dev *edev, const enum extcon id)
{
- int i;
-
- if (edev->supported_cable) {
- for (i = 0; edev->supported_cable[i]; i++) {
- if (!strncmp(edev->supported_cable[i],
- cable_name, CABLE_NAME_MAX))
- return i;
- }
- }
+ int index;
- return -EINVAL;
-}
-EXPORT_SYMBOL_GPL(extcon_find_cable_index);
+ index = find_cable_index_by_id(edev, id);
+ if (index < 0)
+ return index;
-/**
- * extcon_get_cable_state_() - Get the status of a specific cable.
- * @edev: the extcon device that has the cable.
- * @index: cable index that can be retrieved by extcon_find_cable_index().
- */
-int extcon_get_cable_state_(struct extcon_dev *edev, int index)
-{
- if (index < 0 || (edev->max_supported && edev->max_supported <= index))
+ if (edev->max_supported && edev->max_supported <= index)
return -EINVAL;
return !!(edev->state & (1 << index));
@@ -331,7 +346,7 @@ EXPORT_SYMBOL_GPL(extcon_get_cable_state_);
*/
int extcon_get_cable_state(struct extcon_dev *edev, const char *cable_name)
{
- return extcon_get_cable_state_(edev, extcon_find_cable_index
+ return extcon_get_cable_state_(edev, find_cable_index_by_name
(edev, cable_name));
}
EXPORT_SYMBOL_GPL(extcon_get_cable_state);
@@ -339,17 +354,22 @@ EXPORT_SYMBOL_GPL(extcon_get_cable_state);
/**
* extcon_set_cable_state_() - Set the status of a specific cable.
* @edev: the extcon device that has the cable.
- * @index: cable index that can be retrieved by
- * extcon_find_cable_index().
- * @cable_state: the new cable status. The default semantics is
+ * @id: the unique id of each external connector
+ * in extcon enumeration.
+ * @state: the new cable status. The default semantics is
* true: attached / false: detached.
*/
-int extcon_set_cable_state_(struct extcon_dev *edev,
- int index, bool cable_state)
+int extcon_set_cable_state_(struct extcon_dev *edev, enum extcon id,
+ bool cable_state)
{
u32 state;
+ int index;
- if (index < 0 || (edev->max_supported && edev->max_supported <= index))
+ index = find_cable_index_by_id(edev, id);
+ if (index < 0)
+ return index;
+
+ if (edev->max_supported && edev->max_supported <= index)
return -EINVAL;
state = cable_state ? (1 << index) : 0;
@@ -369,7 +389,7 @@ EXPORT_SYMBOL_GPL(extcon_set_cable_state_);
int extcon_set_cable_state(struct extcon_dev *edev,
const char *cable_name, bool cable_state)
{
- return extcon_set_cable_state_(edev, extcon_find_cable_index
+ return extcon_set_cable_state_(edev, find_cable_index_by_name
(edev, cable_name), cable_state);
}
EXPORT_SYMBOL_GPL(extcon_set_cable_state);
@@ -455,8 +475,8 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj,
if (!obj->edev)
return -ENODEV;
- obj->cable_index = extcon_find_cable_index(obj->edev,
- cable_name);
+ obj->cable_index = find_cable_index_by_name(obj->edev,
+ cable_name);
if (obj->cable_index < 0)
return obj->cable_index;
@@ -479,7 +499,7 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj,
while ((dev = class_dev_iter_next(&iter))) {
extd = dev_get_drvdata(dev);
- if (extcon_find_cable_index(extd, cable_name) < 0)
+ if (find_cable_index_by_name(extd, cable_name) < 0)
continue;
class_dev_iter_exit(&iter);
@@ -595,7 +615,7 @@ static void dummy_sysfs_dev_release(struct device *dev)
/*
* extcon_dev_allocate() - Allocate the memory of extcon device.
- * @supported_cable: Array of supported cable names ending with NULL.
+ * @supported_cable: Array of supported extcon ending with EXTCON_NONE.
* If supported_cable is NULL, cable name related APIs
* are disabled.
*
@@ -605,7 +625,7 @@ static void dummy_sysfs_dev_release(struct device *dev)
*
* Return the pointer of extcon device if success or ERR_PTR(err) if fail
*/
-struct extcon_dev *extcon_dev_allocate(const char **supported_cable)
+struct extcon_dev *extcon_dev_allocate(const enum extcon *supported_cable)
{
struct extcon_dev *edev;
@@ -647,7 +667,7 @@ static void devm_extcon_dev_release(struct device *dev, void *res)
/**
* devm_extcon_dev_allocate - Allocate managed extcon device
* @dev: device owning the extcon device being created
- * @supported_cable: Array of supported cable names ending with NULL.
+ * @supported_cable: Array of supported extcon ending with EXTCON_NONE.
* If supported_cable is NULL, cable name related APIs
* are disabled.
*
@@ -659,7 +679,7 @@ static void devm_extcon_dev_release(struct device *dev, void *res)
* or ERR_PTR(err) if fail
*/
struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
- const char **supported_cable)
+ const enum extcon *supported_cable)
{
struct extcon_dev **ptr, *edev;
@@ -709,17 +729,15 @@ int extcon_dev_register(struct extcon_dev *edev)
return ret;
}
- if (edev->supported_cable) {
- /* Get size of array */
- for (index = 0; edev->supported_cable[index]; index++)
- ;
- edev->max_supported = index;
- } else {
- edev->max_supported = 0;
- }
+ if (!edev->supported_cable)
+ return -EINVAL;
+
+ for (; edev->supported_cable[index] != EXTCON_NONE; index++);
+ edev->max_supported = index;
if (index > SUPPORTED_CABLE_MAX) {
- dev_err(&edev->dev, "extcon: maximum number of supported cables exceeded.\n");
+ dev_err(&edev->dev,
+ "exceed the maximum number of supported cables\n");
return -EINVAL;
}
@@ -1070,6 +1088,7 @@ static void __exit extcon_class_exit(void)
}
module_exit(extcon_class_exit);
+MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>");
MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>");
MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
diff --git a/drivers/usb/phy/phy-tahvo.c b/drivers/usb/phy/phy-tahvo.c
index 845f658276b1..1d1bb9ad8ccf 100644
--- a/drivers/usb/phy/phy-tahvo.c
+++ b/drivers/usb/phy/phy-tahvo.c
@@ -60,10 +60,11 @@ struct tahvo_usb {
struct extcon_dev extcon;
};
-static const char *tahvo_cable[] = {
- "USB-HOST",
- "USB",
- NULL,
+static const enum extcon tahvo_cable[] = {
+ EXTCON_USB,
+ EXTCON_USB_HOST,
+
+ EXTCON_NONE,
};
static ssize_t vbus_state_show(struct device *device,
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 799474d9dc48..85c882f0029e 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -1,6 +1,9 @@
/*
* External connector (extcon) class driver
*
+ * Copyright (C) 2015 Samsung Electronics
+ * Author: Chanwoo Choi <cw00.choi@samsung.com>
+ *
* Copyright (C) 2012 Samsung Electronics
* Author: Donggeun Kim <dg77.kim@samsung.com>
* Author: MyungJoo Ham <myungjoo.ham@samsung.com>
@@ -27,50 +30,41 @@
#include <linux/notifier.h>
#include <linux/sysfs.h>
-#define SUPPORTED_CABLE_MAX 32
-#define CABLE_NAME_MAX 30
-
-/*
- * The standard cable name is to help support general notifier
- * and notifiee device drivers to share the common names.
- * Please use standard cable names unless your notifier device has
- * a very unique and abnormal cable or
- * the cable type is supposed to be used with only one unique
- * pair of notifier/notifiee devices.
- *
- * Please add any other "standard" cables used with extcon dev.
- *
- * You may add a dot and number to specify version or specification
- * of the specific cable if it is required. (e.g., "Fast-charger.18"
- * and "Fast-charger.10" for 1.8A and 1.0A chargers)
- * However, the notifiee and notifier should be able to handle such
- * string and if the notifiee can negotiate the protocol or identify,
- * you don't need such convention. This convention is helpful when
- * notifier can distinguish but notifiee cannot.
- */
-enum extcon_cable_name {
- EXTCON_USB = 0,
- EXTCON_USB_HOST,
- EXTCON_TA, /* Travel Adaptor */
- EXTCON_FAST_CHARGER,
- EXTCON_SLOW_CHARGER,
- EXTCON_CHARGE_DOWNSTREAM, /* Charging an external device */
- EXTCON_HDMI,
- EXTCON_MHL,
- EXTCON_DVI,
- EXTCON_VGA,
- EXTCON_DOCK,
- EXTCON_LINE_IN,
- EXTCON_LINE_OUT,
- EXTCON_MIC_IN,
- EXTCON_HEADPHONE_OUT,
- EXTCON_SPDIF_IN,
- EXTCON_SPDIF_OUT,
- EXTCON_VIDEO_IN,
- EXTCON_VIDEO_OUT,
- EXTCON_MECHANICAL,
+enum extcon {
+ EXTCON_NONE = 0x0,
+
+ /* USB external connector */
+ EXTCON_USB = 0x1,
+ EXTCON_USB_HOST = 0x2,
+
+ /* Charger external connector */
+ EXTCON_TA = 0x10,
+ EXTCON_FAST_CHARGER = 0x11,
+ EXTCON_SLOW_CHARGER = 0x12,
+ EXTCON_CHARGE_DOWNSTREAM = 0x13,
+
+ /* Audio/Video external connector */
+ EXTCON_LINE_IN = 0x20,
+ EXTCON_LINE_OUT = 0x21,
+ EXTCON_MICROPHONE = 0x22,
+ EXTCON_HEADPHONE = 0x23,
+
+ EXTCON_HDMI = 0x30,
+ EXTCON_MHL = 0x31,
+ EXTCON_DVI = 0x32,
+ EXTCON_VGA = 0x33,
+ EXTCON_SPDIF_IN = 0x34,
+ EXTCON_SPDIF_OUT = 0x35,
+ EXTCON_VIDEO_IN = 0x36,
+ EXTCON_VIDEO_OUT = 0x37,
+
+ /* Etc external connector */
+ EXTCON_DOCK = 0x50,
+ EXTCON_JIG = 0x51,
+ EXTCON_MECHANICAL = 0x52,
+
+ EXTCON_END,
};
-extern const char extcon_cable_name[][CABLE_NAME_MAX + 1];
struct extcon_cable;
@@ -78,7 +72,7 @@ struct extcon_cable;
* struct extcon_dev - An extcon device represents one external connector.
* @name: The name of this extcon device. Parent device name is
* used if NULL.
- * @supported_cable: Array of supported cable names ending with NULL.
+ * @supported_cable: Array of supported cable names ending with EXTCON_NONE.
* If supported_cable is NULL, cable name related APIs
* are disabled.
* @mutually_exclusive: Array of mutually exclusive set of cables that cannot
@@ -113,7 +107,7 @@ struct extcon_cable;
struct extcon_dev {
/* Optional user initializing data */
const char *name;
- const char **supported_cable;
+ const enum extcon *supported_cable;
const u32 *mutually_exclusive;
/* Optional callbacks to override class functions */
@@ -194,10 +188,10 @@ extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);
/*
* Following APIs control the memory of extcon device.
*/
-extern struct extcon_dev *extcon_dev_allocate(const char **cables);
+extern struct extcon_dev *extcon_dev_allocate(const enum extcon *cable);
extern void extcon_dev_free(struct extcon_dev *edev);
extern struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
- const char **cables);
+ const enum extcon *cable);
extern void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev);
/*
@@ -216,13 +210,10 @@ extern int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state);
/*
* get/set_cable_state access each bit of the 32b encoded state value.
- * They are used to access the status of each cable based on the cable_name
- * or cable_index, which is retrieved by extcon_find_cable_index
+ * They are used to access the status of each cable based on the cable_name.
*/
-extern int extcon_find_cable_index(struct extcon_dev *sdev,
- const char *cable_name);
-extern int extcon_get_cable_state_(struct extcon_dev *edev, int cable_index);
-extern int extcon_set_cable_state_(struct extcon_dev *edev, int cable_index,
+extern int extcon_get_cable_state_(struct extcon_dev *edev, enum extcon id);
+extern int extcon_set_cable_state_(struct extcon_dev *edev, enum extcon id,
bool cable_state);
extern int extcon_get_cable_state(struct extcon_dev *edev,
@@ -281,7 +272,7 @@ static inline int devm_extcon_dev_register(struct device *dev,
static inline void devm_extcon_dev_unregister(struct device *dev,
struct extcon_dev *edev) { }
-static inline struct extcon_dev *extcon_dev_allocate(const char **cables)
+static inline struct extcon_dev *extcon_dev_allocate(const enum extcon *cable)
{
return ERR_PTR(-ENOSYS);
}
@@ -289,7 +280,7 @@ static inline struct extcon_dev *extcon_dev_allocate(const char **cables)
static inline void extcon_dev_free(struct extcon_dev *edev) { }
static inline struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
- const char **cables)
+ const enum extcon *cable)
{
return ERR_PTR(-ENOSYS);
}
@@ -312,20 +303,14 @@ static inline int extcon_update_state(struct extcon_dev *edev, u32 mask,
return 0;
}
-static inline int extcon_find_cable_index(struct extcon_dev *edev,
- const char *cable_name)
-{
- return 0;
-}
-
static inline int extcon_get_cable_state_(struct extcon_dev *edev,
- int cable_index)
+ enum extcon id)
{
return 0;
}
static inline int extcon_set_cable_state_(struct extcon_dev *edev,
- int cable_index, bool cable_state)
+ enum extcon id, bool cable_state)
{
return 0;
}
diff --git a/include/linux/extcon/extcon-adc-jack.h b/include/linux/extcon/extcon-adc-jack.h
index 9ca958c4e94c..53c60806bcfb 100644
--- a/include/linux/extcon/extcon-adc-jack.h
+++ b/include/linux/extcon/extcon-adc-jack.h
@@ -44,7 +44,7 @@ struct adc_jack_cond {
* @consumer_channel: Unique name to identify the channel on the consumer
* side. This typically describes the channels used within
* the consumer. E.g. 'battery_voltage'
- * @cable_names: array of cable names ending with null.
+ * @cable_names: array of extcon id for supported cables.
* @adc_contitions: array of struct adc_jack_cond conditions ending
* with .state = 0 entry. This describes how to decode
* adc values into extcon state.
@@ -58,8 +58,7 @@ struct adc_jack_pdata {
const char *name;
const char *consumer_channel;
- /* The last entry should be NULL */
- const char **cable_names;
+ const enum extcon *cable_names;
/* The last entry's state should be 0 */
struct adc_jack_cond *adc_conditions;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 02:17:02 +0100