/*
* drivers/extcon/extcon.c - External Connector (extcon) framework.
*
* 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>
*
* based on android/drivers/switch/switch_class.c
* Copyright (C) 2008 Google, Inc.
* Author: Mike Lockwood <lockwood@android.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/err.h>
#include <linux/extcon.h>
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
#define SUPPORTED_CABLE_MAX 32
#define CABLE_NAME_MAX 30
struct __extcon_info {
unsigned int type;
unsigned int id;
const char *name;
} extcon_info[] = {
[EXTCON_NONE] = {
.type = EXTCON_TYPE_MISC,
.id = EXTCON_NONE,
.name = "NONE",
},
/* USB external connector */
[EXTCON_USB] = {
.type = EXTCON_TYPE_USB,
.id = EXTCON_USB,
.name = "USB",
},
[EXTCON_USB_HOST] = {
.type = EXTCON_TYPE_USB,
.id = EXTCON_USB_HOST,
.name = "USB_HOST",
},
/* Charging external connector */
[EXTCON_CHG_USB_SDP] = {
.type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
.id = EXTCON_CHG_USB_SDP,
.name = "SDP",
},
[EXTCON_CHG_USB_DCP] = {
.type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
.id = EXTCON_CHG_USB_DCP,
.name = "DCP",
},
[EXTCON_CHG_USB_CDP] = {
.type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
.id = EXTCON_CHG_USB_CDP,
.name = "CDP",
},
[EXTCON_CHG_USB_ACA] = {
.type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
.id = EXTCON_CHG_USB_ACA,
.name = "ACA",
},
[EXTCON_CHG_USB_FAST] = {
.type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
.id = EXTCON_CHG_USB_FAST,
.name = "FAST-CHARGER",
},
[EXTCON_CHG_USB_SLOW] = {
.type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
.id = EXTCON_CHG_USB_SLOW,
.name = "SLOW-CHARGER",
},
/* Jack external connector */
[EXTCON_JACK_MICROPHONE] = {
.type = EXTCON_TYPE_JACK,
.id = EXTCON_JACK_MICROPHONE,
.name = "MICROPHONE",
},
[EXTCON_JACK_HEADPHONE] = {
.type = EXTCON_TYPE_JACK,
.id = EXTCON_JACK_HEADPHONE,
.name = "HEADPHONE",
},
[EXTCON_JACK_LINE_IN] = {
.type = EXTCON_TYPE_JACK,
.id = EXTCON_JACK_LINE_IN,
.name = "LINE-IN",
},
[EXTCON_JACK_LINE_OUT] = {
.type = EXTCON_TYPE_JACK,
.id = EXTCON_JACK_LINE_OUT,
.name = "LINE-OUT",
},
[EXTCON_JACK_VIDEO_IN] = {
.type = EXTCON_TYPE_JACK,
.id = EXTCON_JACK_VIDEO_IN,
.name = "VIDEO-IN",
},
[EXTCON_JACK_VIDEO_OUT] = {
.type = EXTCON_TYPE_JACK,
.id = EXTCON_JACK_VIDEO_OUT,
.name = "VIDEO-OUT",
},
[EXTCON_JACK_SPDIF_IN] = {
.type = EXTCON_TYPE_JACK,
.id = EXTCON_JACK_SPDIF_IN,
.name = "SPDIF-IN",
},
[EXTCON_JACK_SPDIF_OUT] = {
.type = EXTCON_TYPE_JACK,
.id = EXTCON_JACK_SPDIF_OUT,
.name = "SPDIF-OUT",
},
/* Display external connector */
[EXTCON_DISP_HDMI] = {
.type = EXTCON_TYPE_DISP,
.id = EXTCON_DISP_HDMI,
.name = "HDMI",
},
[EXTCON_DISP_MHL] = {
.type = EXTCON_TYPE_DISP,
.id = EXTCON_DISP_MHL,
.name = "MHL",
},
[EXTCON_DISP_DVI] = {
.type = EXTCON_TYPE_DISP,
.id = EXTCON_DISP_DVI,
.name = "DVI",
},
[EXTCON_DISP_VGA] = {
.type = EXTCON_TYPE_DISP,
.id = EXTCON_DISP_VGA,
.name = "VGA",
},
/* Miscellaneous external connector */
[EXTCON_DOCK] = {
.type = EXTCON_TYPE_MISC,