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32 /****************************************************************************/
35 * @file xdmaps_selftest.c
36 * @addtogroup dmaps_v2_0
39 * This file contains the self-test functions for the XDmaPs driver.
42 * MODIFICATION HISTORY:
44 * Ver Who Date Changes
45 * ----- ------ -------- -----------------------------------------------
46 * 1.00 hbm 03/29/2010 First Release
49 ******************************************************************************/
51 /***************************** Include Files *********************************/
56 /************************** Constant Definitions *****************************/
59 /**************************** Type Definitions *******************************/
62 /***************** Macros (Inline Functions) Definitions *********************/
65 /************************** Variable Definitions *****************************/
68 /************************** Function Prototypes ******************************/
71 /****************************************************************************/
74 * This function runs a self-test on the driver and hardware device. This self
75 * test performs a local loopback and verifies data can be sent and received.
77 * The time for this test is proportional to the baud rate that has been set
78 * prior to calling this function.
80 * The mode and control registers are restored before return.
82 * @param InstPtr is a pointer to the XDmaPs instance
86 * - XST_SUCCESS if the test was successful
87 * - XST_FAILURE if the test failed
91 * This function can hang if the hardware is not functioning properly.
93 ******************************************************************************/
94 int XDmaPs_SelfTest(XDmaPs *InstPtr)
96 u32 BaseAddr = InstPtr->Config.BaseAddress;
99 if (XDmaPs_ReadReg(BaseAddr, XDMAPS_DBGSTATUS_OFFSET)
100 & XDMAPS_DBGSTATUS_BUSY)
103 for (i = 0; i < XDMAPS_CHANNELS_PER_DEV; i++) {
104 if (XDmaPs_ReadReg(BaseAddr,
105 XDmaPs_CSn_OFFSET(i)))