extcon: Add the extcon_type to gather each connector into five category
This patch adds the new extcon type to group the each connecotr
into following five category. This type would be used to handle
the connectors as a group unit instead of a connector unit.
- EXTCON_TYPE_USB : USB connector
- EXTCON_TYPE_CHG : Charger connector
- EXTCON_TYPE_JACK : Jack connector
- EXTCON_TYPE_DISP : Display connector
- EXTCON_TYPE_MISC : Miscellaneous connector
Also, each external connector is possible to belong to one more extcon type.
In caes of EXTCON_CHG_USB_SDP, it have the EXTCON_TYPE_CHG and EXTCON_TYPE_USB.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Chris Zhong <zyw@rock-chips.com>
Tested-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 9a266e5..f209a69 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -38,43 +38,144 @@
#define SUPPORTED_CABLE_MAX 32
#define CABLE_NAME_MAX 30
-static const char *extcon_name[] = {
- [EXTCON_NONE] = "NONE",
+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] = "USB",
- [EXTCON_USB_HOST] = "USB-HOST",
+ [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] = "SDP",
- [EXTCON_CHG_USB_DCP] = "DCP",
- [EXTCON_CHG_USB_CDP] = "CDP",
- [EXTCON_CHG_USB_ACA] = "ACA",
- [EXTCON_CHG_USB_FAST] = "FAST-CHARGER",
- [EXTCON_CHG_USB_SLOW] = "SLOW-CHARGER",
+ [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] = "MICROPHONE",
- [EXTCON_JACK_HEADPHONE] = "HEADPHONE",
- [EXTCON_JACK_LINE_IN] = "LINE-IN",
- [EXTCON_JACK_LINE_OUT] = "LINE-OUT",
- [EXTCON_JACK_VIDEO_IN] = "VIDEO-IN",
- [EXTCON_JACK_VIDEO_OUT] = "VIDEO-OUT",
- [EXTCON_JACK_SPDIF_IN] = "SPDIF-IN",
- [EXTCON_JACK_SPDIF_OUT] = "SPDIF-OUT",
+ [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] = "HDMI",
- [EXTCON_DISP_MHL] = "MHL",
- [EXTCON_DISP_DVI] = "DVI",
- [EXTCON_DISP_VGA] = "VGA",
+ [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] = "DOCK",
- [EXTCON_JIG] = "JIG",
- [EXTCON_MECHANICAL] = "MECHANICAL",
+ [EXTCON_DOCK] = {
+ .type = EXTCON_TYPE_MISC,
+ .id = EXTCON_DOCK,
+ .name = "DOCK",
+ },
+ [EXTCON_JIG] = {
+ .type = EXTCON_TYPE_MISC,
+ .id = EXTCON_JIG,
+ .name = "JIG",
+ },
+ [EXTCON_MECHANICAL] = {
+ .type = EXTCON_TYPE_MISC,
+ .id = EXTCON_MECHANICAL,
+ .name = "MECHANICAL",
+ },
- NULL,
+ { /* sentinel */ }
};
/**
@@ -168,7 +269,7 @@
for (i = 0; i < edev->max_supported; i++) {
count += sprintf(buf + count, "%s=%d\n",
- extcon_name[edev->supported_cable[i]],
+ extcon_info[edev->supported_cable[i]].name,
!!(edev->state & (1 << i)));
}
@@ -193,7 +294,7 @@
int i = cable->cable_index;
return sprintf(buf, "%s\n",
- extcon_name[cable->edev->supported_cable[i]]);
+ extcon_info[cable->edev->supported_cable[i]].name);
}
static ssize_t cable_state_show(struct device *dev,
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 667b1d3..46d8028 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -29,6 +29,15 @@
#include <linux/device.h>
/*
+ * Define the type of supported external connectors
+ */
+#define EXTCON_TYPE_USB BIT(0) /* USB connector */
+#define EXTCON_TYPE_CHG BIT(1) /* Charger connector */
+#define EXTCON_TYPE_JACK BIT(2) /* Jack connector */
+#define EXTCON_TYPE_DISP BIT(3) /* Display connector */
+#define EXTCON_TYPE_MISC BIT(4) /* Miscellaneous connector */
+
+/*
* Define the unique id of supported external connectors
*/
#define EXTCON_NONE 0