1 /*****************************************************************************
3 * (c) Copyright 2009-2010 Xilinx, Inc. All rights reserved.
5 * This file contains confidential and proprietary information of Xilinx, Inc.
6 * and is protected under U.S. and international copyright and other
7 * intellectual property laws.
10 * This disclaimer is not a license and does not grant any rights to the
11 * materials distributed herewith. Except as otherwise provided in a valid
12 * license issued to you by Xilinx, and to the maximum extent permitted by
13 * applicable law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND WITH ALL
14 * FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS, EXPRESS,
15 * IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
16 * MERCHANTABILITY, NON-INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE;
17 * and (2) Xilinx shall not be liable (whether in contract or tort, including
18 * negligence, or under any other theory of liability) for any loss or damage
19 * of any kind or nature related to, arising under or in connection with these
20 * materials, including for any direct, or any indirect, special, incidental,
21 * or consequential loss or damage (including loss of data, profits, goodwill,
22 * or any type of loss or damage suffered as a result of any action brought by
23 * a third party) even if such damage or loss was reasonably foreseeable or
24 * Xilinx had been advised of the possibility of the same.
26 * CRITICAL APPLICATIONS
27 * Xilinx products are not designed or intended to be fail-safe, or for use in
28 * any application requiring fail-safe performance, such as life-support or
29 * safety devices or systems, Class III medical devices, nuclear facilities,
30 * applications related to the deployment of airbags, or any other applications
31 * that could lead to death, personal injury, or severe property or
32 * environmental damage (individually and collectively, "Critical
33 * Applications"). Customer assumes the sole risk and liability of any use of
34 * Xilinx products in Critical Applications, subject only to applicable laws
35 * and regulations governing limitations on product liability.
37 * THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS PART OF THIS FILE
40 *****************************************************************************/
41 /****************************************************************************/
44 * @file xdmaps_selftest.c
46 * This file contains the self-test functions for the XDmaPs driver.
49 * MODIFICATION HISTORY:
51 * Ver Who Date Changes
52 * ----- ------ -------- -----------------------------------------------
53 * 1.00 hbm 03/29/2010 First Release
56 ******************************************************************************/
58 /***************************** Include Files *********************************/
63 /************************** Constant Definitions *****************************/
66 /**************************** Type Definitions *******************************/
69 /***************** Macros (Inline Functions) Definitions *********************/
72 /************************** Variable Definitions *****************************/
75 /************************** Function Prototypes ******************************/
78 /****************************************************************************/
81 * This function runs a self-test on the driver and hardware device. This self
82 * test performs a local loopback and verifies data can be sent and received.
84 * The time for this test is proportional to the baud rate that has been set
85 * prior to calling this function.
87 * The mode and control registers are restored before return.
89 * @param InstPtr is a pointer to the XDmaPs instance
93 * - XST_SUCCESS if the test was successful
94 * - XST_FAILURE if the test failed
98 * This function can hang if the hardware is not functioning properly.
100 ******************************************************************************/
101 int XDmaPs_SelfTest(XDmaPs *InstPtr)
103 u32 BaseAddr = InstPtr->Config.BaseAddress;
106 if (XDmaPs_ReadReg(BaseAddr, XDMAPS_DBGSTATUS_OFFSET)
107 & XDMAPS_DBGSTATUS_BUSY)
110 for (i = 0; i < XDMAPS_CHANNELS_PER_DEV; i++) {
111 if (XDmaPs_ReadReg(BaseAddr,
112 XDmaPs_CSn_OFFSET(i)))