C++ (Cpp) adb_scan_bus Examples

Example #1

File: adb.c Project: FatSunHYS/OSCourseDesign

static int
do_adb_reset_bus(void)
{
	int ret, nret;
	
	if (adb_controller == NULL)
		return -ENXIO;
		
	if (adb_controller->autopoll)
		adb_controller->autopoll(0);

	nret = blocking_notifier_call_chain(&adb_client_list,
			ADB_MSG_PRE_RESET, NULL);
	if (nret & NOTIFY_STOP_MASK) {
		if (adb_controller->autopoll)
			adb_controller->autopoll(autopoll_devs);
		return -EBUSY;
	}

	if (sleepy_trackpad) {
		/* Let the trackpad settle down */
		adb_wait_ms(500);
	}

	down(&adb_handler_sem);
	write_lock_irq(&adb_handler_lock);
	memset(adb_handler, 0, sizeof(adb_handler));
	write_unlock_irq(&adb_handler_lock);

	/* That one is still a bit synchronous, oh well... */
	if (adb_controller->reset_bus)
		ret = adb_controller->reset_bus();
	else
		ret = 0;

	if (sleepy_trackpad) {
		/* Let the trackpad settle down */
		adb_wait_ms(1500);
	}

	if (!ret) {
		autopoll_devs = adb_scan_bus();
		if (adb_controller->autopoll)
			adb_controller->autopoll(autopoll_devs);
	}
	up(&adb_handler_sem);

	nret = blocking_notifier_call_chain(&adb_client_list,
			ADB_MSG_POST_RESET, NULL);
	if (nret & NOTIFY_STOP_MASK)
		return -EBUSY;
	
	return ret;
}

Example #2

File: adb.c Project: chinnyannieb/empeg-hijack

int
adb_reset_bus(void)
{
	int ret, nret, devs;
	unsigned long flags;
	
	if (adb_controller == NULL)
		return -ENXIO;
		
	if (adb_controller->autopoll)
		adb_controller->autopoll(0);

	nret = notifier_call_chain(&adb_client_list, ADB_MSG_PRE_RESET, NULL);
	if (nret & NOTIFY_STOP_MASK) {
		if (adb_controller->autopoll)
			adb_controller->autopoll(devs);
		return -EBUSY;
	}

	save_flags(flags);
	cli();
	memset(adb_handler, 0, sizeof(adb_handler));
	restore_flags(flags);
	
	if (adb_controller->reset_bus)
		ret = adb_controller->reset_bus();
	else
		ret = 0;

	if (!ret) {
		devs = adb_scan_bus();
		if (adb_controller->autopoll)
			adb_controller->autopoll(devs);
	}

	nret = notifier_call_chain(&adb_client_list, ADB_MSG_POST_RESET, NULL);
	if (nret & NOTIFY_STOP_MASK)
		return -EBUSY;
	
	return ret;
}