| /****************************************************************************** |
| * |
| * Copyright (C) 2004 - 2014 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 |
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| * 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, |
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| * SOFTWARE. |
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| * this Software without prior written authorization from Xilinx. |
| * |
| ******************************************************************************/ |
| /*****************************************************************************/ |
| /** |
| * |
| * @file microblaze_interrupt_handler.c |
| * |
| * This file contains the standard interrupt handler for the MicroBlaze processor. |
| * |
| * <pre> |
| * MODIFICATION HISTORY: |
| * |
| * Ver Date Changes |
| * ----- -------- ----------------------------------------------- |
| * 1.00b 10/03/03 First release |
| * </pre> |
| * |
| ******************************************************************************/ |
| |
| |
| /***************************** Include Files *********************************/ |
| |
| #include "xil_exception.h" |
| #include "microblaze_interrupts_i.h" |
| |
| /************************** Constant Definitions *****************************/ |
| |
| |
| /**************************** Type Definitions *******************************/ |
| |
| |
| /***************** Macros (Inline Functions) Definitions *********************/ |
| |
| |
| /************************** Function Prototypes ******************************/ |
| |
| void __interrupt_handler (void) __attribute__ ((interrupt_handler)); |
| void microblaze_register_handler(XInterruptHandler Handler, void *DataPtr); |
| |
| /************************** Variable Definitions *****************************/ |
| |
| extern MB_InterruptVectorTableEntry MB_InterruptVectorTable; |
| /*****************************************************************************/ |
| /** |
| * |
| * This function is the standard interrupt handler used by the MicroBlaze processor. |
| * It saves all volatile registers, calls the users top level interrupt handler. |
| * When this returns, it restores all registers, and returns using a rtid instruction. |
| * |
| * @param |
| * |
| * None |
| * |
| * @return |
| * |
| * None. |
| * |
| * @note |
| * |
| * None. |
| * |
| ******************************************************************************/ |
| void __interrupt_handler(void) |
| { |
| /* The compiler saves all volatiles and the MSR */ |
| (void)MB_InterruptVectorTable.Handler(MB_InterruptVectorTable.CallBackRef); |
| /* The compiler restores all volatiles and MSR, and returns from interrupt */ |
| } |
| |
| /****************************************************************************/ |
| /*****************************************************************************/ |
| /** |
| * |
| * Registers a top-level interrupt handler for the MicroBlaze. The |
| * argument provided in this call as the DataPtr is used as the argument |
| * for the handler when it is called. |
| * |
| * @param Top level handler. |
| * @param DataPtr is a reference to data that will be passed to the handler |
| * when it gets called. |
| |
| * @return None. |
| * |
| * @note |
| * |
| * None. |
| * |
| ****************************************************************************/ |
| void microblaze_register_handler(XInterruptHandler Handler, void *DataPtr) |
| { |
| MB_InterruptVectorTable.Handler = Handler; |
| MB_InterruptVectorTable.CallBackRef = DataPtr; |
| } |