dp: rx: Added callback for video mode change interrupts.

Signed-off-by: Andrei-Liviu Simion <andrei.simion@xilinx.com>

XilinxProcessorIPLib/drivers/dp/src/xdprx.h

@@ -61,6 +61,17 @@ typedef struct {
 						link. */
 } XDprx_LinkConfig;
 
+/******************************************************************************/
+/**
+ * Callback type which represents the handler for interrupts.
+ *
+ * @param	InstancePtr is a pointer to the XDprx instance.
+ *
+ * @note	None.
+ *
+*******************************************************************************/
+typedef void (*XDprx_IntrHandler)(void *InstancePtr);
+
 /**
  * The XDprx driver instance data. The user is required to allocate a variable
  * of this type for every XDprx device in the system. A pointer to a variable of
@@ -81,6 +92,13 @@ typedef struct {
 	void *UserTimerPtr;			/**< Pointer to a timer instance
 							used by the custom user
 							delay/sleep function. */
+	XDptx_IntrHandler IntrVmChangeHandler;	/**< Callback function for video
+							mode change
+							interrupts. */
+	void *IntrVmChangeCallbackRef;		/**< A pointer to the user data
+							passed to the video mode
+							change callback
+							function. */
 } XDprx;
 
 /**************************** Function Prototypes *****************************/
@@ -101,4 +119,8 @@ void XDprx_SetUserTimerHandler(XDprx *InstancePtr,
 			XDp_TimerHandler CallbackFunc, void *CallbackRef);
 void XDprx_WaitUs(XDprx *InstancePtr, u32 MicroSeconds);
 
+/* xdprx_intr.c: Interrupt handling functions. */
+void XDptx_SetIntrVmChangeHandler(XDptx *InstancePtr,
+			XDprx_IntrHandler CallbackFunc, void *CallbackRef);
+
 #endif /* XDPRX_H_ */

XilinxProcessorIPLib/drivers/dp/src/xdprx_intr.c

@@ -0,0 +1,81 @@
+/*******************************************************************************
+ *
+ * Copyright (C) 2015 Xilinx, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * Use of the Software is limited solely to applications:
+ * (a) running on a Xilinx device, or
+ * (b) that interact with a Xilinx device through a bus or interconnect.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the Xilinx shall not be used
+ * in advertising or otherwise to promote the sale, use or other dealings in
+ * this Software without prior written authorization from Xilinx.
+ *
+*******************************************************************************/
+/******************************************************************************/
+/**
+ *
+ * @file xdprx_intr.c
+ *
+ * This file contains functions related to XDprx interrupt handling.
+ *
+ * @note	None.
+ *
+ * <pre>
+ * MODIFICATION HISTORY:
+ *
+ * Ver   Who  Date     Changes
+ * ----- ---- -------- -----------------------------------------------
+ * </pre>
+ *
+*******************************************************************************/
+
+/******************************* Include Files ********************************/
+
+#include "xdprx.h"
+
+/**************************** Function Definitions ****************************/
+
+/******************************************************************************/
+/**
+ * This function installs a callback function for when a video mode change
+ * interrupt occurs.
+ *
+ * @param	InstancePtr is a pointer to the XDprx instance.
+ * @param	CallbackFunc is the address to the callback function.
+ * @param	CallbackRef is the user data item that will be passed to the
+ *		callback function when it is invoked.
+ *
+ * @return	None.
+ *
+ * @note	None.
+ *
+*******************************************************************************/
+void XDptx_SetIntrVmChangeHandler(XDptx *InstancePtr,
+			XDprx_IntrHandler CallbackFunc, void *CallbackRef)
+{
+	/* Verify arguments. */
+	Xil_AssertVoid(InstancePtr != NULL);
+	Xil_AssertVoid(CallbackFunc != NULL);
+	Xil_AssertVoid(CallbackRef != NULL);
+
+	InstancePtr->IntrVmChangeHandler = CallbackFunc;
+	InstancePtr->IntrVmChangeCallbackRef = CallbackRef;
+}