/*
* 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>
#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;
* 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
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 */
/*
* 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);
/*
/*
* 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,
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);
}
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);
}
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;
}
projects / karo-tx-linux.git / blobdiff