Disable keyboard and mouse before checking the i8042 controller.

Flush queue before enabling them

svn path=/trunk/; revision=24368

reactos/drivers/input/i8042prt/pnp.c

@@ -80,6 +80,10 @@ i8042BasicDetect(
 	NTSTATUS Status;
 	UCHAR Value = 0;
 
+	/* Don't enable keyboard and mouse interrupts, disable keyboard/mouse */
+	if (!i8042ChangeMode(DeviceExtension, CCB_KBD_INT_ENAB | CCB_MOUSE_INT_ENAB, CCB_KBD_DISAB | CCB_MOUSE_DISAB))
+		return STATUS_IO_DEVICE_ERROR;
+
 	i8042Flush(DeviceExtension);
 
 	if (!i8042Write(DeviceExtension, DeviceExtension->ControlPort, CTRL_SELF_TEST))
@@ -101,10 +105,6 @@ i8042BasicDetect(
 		return STATUS_IO_DEVICE_ERROR;
 	}
 
-	/* Don't enable keyboard and mouse interrupts, disable keyboard/mouse */
-	if (!i8042ChangeMode(DeviceExtension, CCB_KBD_INT_ENAB | CCB_MOUSE_INT_ENAB, CCB_KBD_DISAB | CCB_MOUSE_DISAB))
-		return STATUS_IO_DEVICE_ERROR;
-
 	/*
 	 * We used to send a KBD_LINE_TEST (0xAB) command here, but on at least HP
 	 * Pavilion notebooks the response to that command was incorrect.
@@ -132,11 +132,6 @@ i8042DetectKeyboard(
 {
 	NTSTATUS Status;
 
-	if (!i8042ChangeMode(DeviceExtension, 0, CCB_KBD_DISAB))
-		return FALSE;
-
-	i8042Flush(DeviceExtension);
-
 	/* Set LEDs (that is not fatal if some error occurs) */
 	Status = i8042SynchWritePort(DeviceExtension, 0, KBD_CMD_SET_LEDS, TRUE);
 	if (NT_SUCCESS(Status))
@@ -333,6 +328,8 @@ EnableInterrupts(
 	UCHAR FlagsToDisable = 0;
 	UCHAR FlagsToEnable = 0;
 
+	i8042Flush(DeviceExtension);
+
 	/* Select the devices we have */
 	if (DeviceExtension->Flags & KEYBOARD_PRESENT)
 	{