| /****************************************************************************** |
| * |
| * Copyright (C) 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 |
| * 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 |
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| * 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 xcsudma_selftest.c |
| * @addtogroup csudma_v1_2 |
| * @{ |
| * |
| * This file contains a diagnostic self-test function for the CSU_DMA driver. |
| * Refer to the header file xcsudma.h for more detailed information. |
| * |
| * <pre> |
| * MODIFICATION HISTORY: |
| * |
| * Ver Who Date Changes |
| * ----- ------ -------- --------------------------------------------------- |
| * 1.0 vnsld 22/10/14 First release |
| * </pre> |
| * |
| ******************************************************************************/ |
| |
| /***************************** Include Files *********************************/ |
| |
| #include "xcsudma.h" |
| |
| /************************** Constant Definitions ****************************/ |
| |
| |
| /**************************** Type Definitions ******************************/ |
| |
| |
| /***************** Macros (Inline Functions) Definitions ********************/ |
| |
| |
| /************************** Variable Definitions ****************************/ |
| |
| |
| /************************** Function Prototypes *****************************/ |
| |
| |
| /************************** Function Definitions *****************************/ |
| |
| |
| /*****************************************************************************/ |
| /** |
| * |
| * This function runs a self-test on the driver and hardware device. Performs |
| * reset of both source and destination channels and checks if reset is working |
| * properly or not. |
| * |
| * @param InstancePtr is a pointer to the XCsuDma instance. |
| * |
| * @return |
| * - XST_SUCCESS if the self-test passed. |
| * - XST_FAILURE otherwise. |
| * |
| * @note None. |
| * |
| ******************************************************************************/ |
| s32 XCsuDma_SelfTest(XCsuDma *InstancePtr) |
| { |
| u32 Data; |
| s32 Status; |
| |
| /* Verify arguments. */ |
| Xil_AssertNonvoid(InstancePtr != NULL); |
| |
| Data = XCsuDma_ReadReg(InstancePtr->Config.BaseAddress, |
| (u32)(XCSUDMA_CTRL_OFFSET)); |
| |
| /* Changing Endianess of Source channel */ |
| |
| XCsuDma_WriteReg(InstancePtr->Config.BaseAddress, |
| (u32)(XCSUDMA_CTRL_OFFSET), |
| ((Data) | (u32)(XCSUDMA_CTRL_ENDIAN_MASK))); |
| |
| if ((XCsuDma_ReadReg(InstancePtr->Config.BaseAddress, |
| (u32)(XCSUDMA_CTRL_OFFSET)) & |
| (u32)(XCSUDMA_CTRL_ENDIAN_MASK)) == |
| (XCSUDMA_CTRL_ENDIAN_MASK)) { |
| Status = (s32)(XST_SUCCESS); |
| } |
| else { |
| Status = (s32)(XST_FAILURE); |
| } |
| |
| /* Changes made are being reverted back */ |
| XCsuDma_WriteReg(InstancePtr->Config.BaseAddress, |
| (u32)(XCSUDMA_CTRL_OFFSET), Data); |
| |
| return Status; |
| |
| } |
| /** @} */ |
