From: INSUN PYO <insun.pyo@samsung.com>
Date: Fri, 10 Jan 2020 05:00:10 +0000 (+0900)
Subject: Enable usb_mode udev event for factory mode.
X-Git-Tag: accepted/tizen/unified/20200114.130716~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F78%2F222178%2F3;p=platform%2Fcore%2Fsystem%2Fdeviced.git

Enable usb_mode udev event for factory mode.

Factory jig internally disconnects only signal cable(in Blue and White) of USB cable.
It makes a strange state.

In general, when the USB cable is disconnected, switch udev event and usb_mode udev event occur.
But, in factory jig case, usb_mode udev event only occurs.

Without luck, data-router.service crashs on factory jig because of one's own problems.
So, we have to restart data-router.service when usb_mode udev event happens.

And, sdbd.service and mtp-response.service also restart as a preventive measure.

Change-Id: Ia538383aefd82bad9eaf976fc4dedef605c60026
---

diff --git a/src/usb/usb.c b/src/usb/usb.c
index 65a33d0..367aa21 100644
--- a/src/usb/usb.c
+++ b/src/usb/usb.c
@@ -21,9 +21,11 @@
 #include <vconf.h>
 #include <bundle.h>
 #include <eventsystem.h>
+#include <libsyscommon/dbus-systemd.h>
 
 #include "core/log.h"
 #include "core/list.h"
+#include "core/udev.h"
 #include "core/common.h"
 #include "core/device-notifier.h"
 #include "display/poll.h"
@@ -397,6 +399,34 @@ static int usb_state_changed(int status)
 	return ret;
 }
 
+static void uevent_usb_mode_handler(struct udev_device *dev)
+{
+	const char *state = NULL;
+
+	state = udev_device_get_property_value(dev, "USB_STATE");
+	if (!state)
+		return;
+
+	if (strncmp(state, "CONFIGURED", strlen(state) + 1))
+		return;
+
+	_I("usb_mode udev event happend : CONFIGURED");
+
+	if (usb_state_get_selected_mode() | USB_FUNCTION_ACM)
+		systemd_start_unit_wait_started ("data-router.service", NULL, -1);
+
+	if (usb_state_get_selected_mode() | USB_FUNCTION_SDB)
+		systemd_start_unit_wait_started ("sdbd.service", NULL, -1);
+
+	if (usb_state_get_selected_mode() | USB_FUNCTION_MTP)
+		systemd_start_unit_wait_started ("mtp-responder.service", NULL, -1);
+}
+
+static struct uevent_handler uh = {
+	.subsystem = "usb_mode",
+	.uevent_func = uevent_usb_mode_handler,
+};
+
 static void usb_init(void *data)
 {
 	int ret;
@@ -413,6 +443,10 @@ static void usb_init(void *data)
 		ret = usb_config_init();
 		if (ret < 0)
 			_E("Failed to initialize usb configuation.");
+
+		ret = register_udev_uevent_control(&uh);
+		if (ret < 0)
+			_E("Failed to register udev event(%d)", ret);
 	}
 
 	ret = usb_dbus_init();
@@ -434,6 +468,7 @@ static void usb_exit(void *data)
 	usb_state_update_state(USB_DISCONNECTED, USB_FUNCTION_NONE);
 
 	if (!is_emulator()) {
+		unregister_udev_uevent_control(&uh);
 		usb_config_deinit();
 		usb_release();
 	}