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32 /*****************************************************************************/
35 * @file xzdma_selftest.c
37 * This file contains the self-test function for the ZDMA core.
40 * MODIFICATION HISTORY:
42 * Ver Who Date Changes
43 * ----- ------ -------- ------------------------------------------------------
44 * 1.0 vns 2/27/15 First release
47 ******************************************************************************/
49 /***************************** Include Files *********************************/
53 /************************** Constant Definitions *****************************/
56 /***************** Macros (Inline Functions) Definitions *********************/
59 /**************************** Type Definitions *******************************/
62 /************************** Function Prototypes ******************************/
65 /************************** Variable Definitions *****************************/
68 /************************** Function Definitions *****************************/
70 /*****************************************************************************/
73 * This file contains a diagnostic self-test function for the ZDMA driver.
74 * Refer to the header file xzdma.h for more detailed information.
76 * @param InstancePtr is a pointer to XZDma instance.
79 * - XST_SUCCESS if the test is successful.
80 * - XST_FAILURE if the test is failed.
84 ******************************************************************************/
85 s32 XZDma_SelfTest(XZDma *InstancePtr)
91 Xil_AssertNonvoid(InstancePtr != NULL);
93 Data = XZDma_ReadReg(InstancePtr->Config.BaseAddress,
94 XZDMA_CH_CTRL0_OFFSET);
96 /* Changing DMA channel to over fetch */
98 XZDma_WriteReg(InstancePtr->Config.BaseAddress, XZDMA_CH_CTRL0_OFFSET,
99 (Data | XZDMA_CTRL0_OVR_FETCH_MASK));
101 if (((u32)XZDma_ReadReg(InstancePtr->Config.BaseAddress,
102 XZDMA_CH_CTRL0_OFFSET) & XZDMA_CTRL0_OVR_FETCH_MASK) !=
103 XZDMA_CTRL0_OVR_FETCH_MASK) {
104 Status = (s32)XST_FAILURE;
107 Status = (s32)XST_SUCCESS;
110 /* Retrieving the change settings */
111 XZDma_WriteReg(InstancePtr->Config.BaseAddress, XZDMA_CH_CTRL0_OFFSET,