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32 /****************************************************************************/
35 * @file xdmaps_selftest.c
37 * This file contains the self-test functions for the XDmaPs driver.
40 * MODIFICATION HISTORY:
42 * Ver Who Date Changes
43 * ----- ------ -------- -----------------------------------------------
44 * 1.00 hbm 03/29/2010 First Release
47 ******************************************************************************/
49 /***************************** Include Files *********************************/
54 /************************** Constant Definitions *****************************/
57 /**************************** Type Definitions *******************************/
60 /***************** Macros (Inline Functions) Definitions *********************/
63 /************************** Variable Definitions *****************************/
66 /************************** Function Prototypes ******************************/
69 /****************************************************************************/
72 * This function runs a self-test on the driver and hardware device. This self
73 * test performs a local loopback and verifies data can be sent and received.
75 * The time for this test is proportional to the baud rate that has been set
76 * prior to calling this function.
78 * The mode and control registers are restored before return.
80 * @param InstPtr is a pointer to the XDmaPs instance
84 * - XST_SUCCESS if the test was successful
85 * - XST_FAILURE if the test failed
89 * This function can hang if the hardware is not functioning properly.
91 ******************************************************************************/
92 int XDmaPs_SelfTest(XDmaPs *InstPtr)
94 u32 BaseAddr = InstPtr->Config.BaseAddress;
97 if (XDmaPs_ReadReg(BaseAddr, XDMAPS_DBGSTATUS_OFFSET)
98 & XDMAPS_DBGSTATUS_BUSY)
101 for (i = 0; i < XDMAPS_CHANNELS_PER_DEV; i++) {
102 if (XDmaPs_ReadReg(BaseAddr,
103 XDmaPs_CSn_OFFSET(i)))