1 /******************************************************************************
3 * Copyright (C) 2014 Xilinx, Inc. All rights reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * Use of the Software is limited solely to applications:
16 * (a) running on a Xilinx device, or
17 * (b) that interact with a Xilinx device through a bus or interconnect.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
23 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
24 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 * Except as contained in this notice, the name of the Xilinx shall not be used
28 * in advertising or otherwise to promote the sale, use or other dealings in
29 * this Software without prior written authorization from Xilinx.
31 ******************************************************************************/
33 /*****************************************************************************/
36 * @file xcsudma_selftest.c
37 * @addtogroup csudma_v1_0
40 * This file contains a diagnostic self-test function for the CSU_DMA driver.
41 * Refer to the header file xcsudma.h for more detailed information.
44 * MODIFICATION HISTORY:
46 * Ver Who Date Changes
47 * ----- ------ -------- ---------------------------------------------------
48 * 1.0 vnsld 22/10/14 First release
51 ******************************************************************************/
53 /***************************** Include Files *********************************/
57 /************************** Constant Definitions ****************************/
60 /**************************** Type Definitions ******************************/
63 /***************** Macros (Inline Functions) Definitions ********************/
66 /************************** Variable Definitions ****************************/
69 /************************** Function Prototypes *****************************/
72 /************************** Function Definitions *****************************/
75 /*****************************************************************************/
78 * This function runs a self-test on the driver and hardware device. Performs
79 * reset of both source and destination channels and checks if reset is working
82 * @param InstancePtr is a pointer to the XCsuDma instance.
85 * - XST_SUCCESS if the self-test passed.
86 * - XST_FAILURE otherwise.
90 ******************************************************************************/
91 s32 XCsuDma_SelfTest(XCsuDma *InstancePtr)
96 /* Verify arguments. */
97 Xil_AssertNonvoid(InstancePtr != NULL);
99 Data = XCsuDma_ReadReg(InstancePtr->Config.BaseAddress,
100 (u32)(XCSUDMA_CTRL_OFFSET));
102 /* Changing Endianess of Source channel */
104 XCsuDma_WriteReg(InstancePtr->Config.BaseAddress,
105 (u32)(XCSUDMA_CTRL_OFFSET),
106 ((Data) | (u32)(XCSUDMA_CTRL_ENDIAN_MASK)));
108 if ((XCsuDma_ReadReg(InstancePtr->Config.BaseAddress,
109 (u32)(XCSUDMA_CTRL_OFFSET)) &
110 (u32)(XCSUDMA_CTRL_ENDIAN_MASK)) ==
111 (XCSUDMA_CTRL_ENDIAN_MASK)) {
112 Status = (s32)(XST_SUCCESS);
115 Status = (s32)(XST_FAILURE);
118 /* Changes made are being reverted back */
119 XCsuDma_WriteReg(InstancePtr->Config.BaseAddress,
120 (u32)(XCSUDMA_CTRL_OFFSET), Data);