csl_mshwcontrol.c

TI达芬奇dm644x各硬件模块测试代码

/*  ============================================================================
 *   Copyright (c) Texas Instruments Inc 2002, 2003, 2004, 2005
 *
 *   Use of this software is controlled by the terms and conditions found in the
 *   license agreement under which this software has been supplied.
 *   ===========================================================================
 */

/** @file csl_msHwControl.c
 *
 *  @brief    File for functional layer of CSL API \a CSL_msHwControl()
 *
 *  Path: \\(CSLPATH)\\ipmodules\\memstick\\src
 *
 *  Description
 *    - The \a CSL_msHwControl() function definition & it's associated
 *      functions
 *
 *  Date   7th June, 2004
 *  Author Santosh Narayanan
 *
 */

/* =============================================================================
 *  Revision History
 *  ================
 *  14-Dec-2004 kpn Updated the file according to CSL Upgradation guidelines.
 *                  Added control commands for setting Byte Swap & Clock divider
 *                  Values according to csl_ms.h
 * =============================================================================
 */

#include <csl_ms.h>
#include <csl_msAux.h>

/** ============================================================================
 *   @n@b CSL_msHwControl
 *
 *   @b Description
 *   @n Takes a command of MS with an optional argument & implements it.
 *
 *   @b Arguments
 *   @verbatim
            hMs             Handle to the MS instance

            cmd             The command to this API indicates the action to be
                            taken on MS.

            arg             An optional argument.
     @endverbatim
 *
 *   <b> Return Value </b>  CSL_Status
 *   @li             CSL_SOK               - Status info return successful.
 *   @li             CSL_ESYS_BADHANDLE    - Invalid handle
 *   @li             CSL_ESYS_INVCMD       - Invalid command
 *
 *   <b> Pre Condition </b>
 *   @n  None
 *
 *   <b> Post Condition </b>
 *   @n  The MS is controlled according to input command and argument.
 *
 *   @b Modifies
 *   @n The hardware registers of MS.
 *
 *   @b Example
 *   @verbatim
        CSL_MsHandle         hMs;
        CSL_MsHwControlCmd   cmd;
        void                 arg;
        ...

        status = CSL_msHwControl (hMs, cmd, &arg);
     @endverbatim
 * =============================================================================
 */
#pragma CODE_SECTION (CSL_msHwControl, ".text:csl_section:ms");
CSL_Status CSL_msHwControl (
    CSL_MsHandle              hMs,
    CSL_MsHwControlCmd        cmd,
    void                     *arg
)
{
    CSL_Status status = CSL_SOK;

    if (hMs == NULL) {
        return CSL_ESYS_BADHANDLE;
    }

    switch (cmd) {

        case CSL_MS_CMD_TPC_SET:
            CSL_msTpcSet (hMs, *(Uint16*)arg);
            break;

        case CSL_MS_CMD_DSL_FIFO:
            CSL_msDslFifo (hMs);
            break;

        case CSL_MS_CMD_DSL_EXTMEM:
            CSL_msDslExtmem (hMs);
            break;

        case CSL_MS_CMD_RESET:
            CSL_msReset (hMs);
            break;

        case CSL_MS_CMD_SET_DATA_SIZE:
            CSL_msSetDataSize (hMs, *(Uint16*)arg);
            break;

        case CSL_MS_CMD_WRITE_FIFO:
            CSL_msWriteFifo (hMs, *(Uint32*)arg);
            break;

        case CSL_MS_CMD_READ_FIFO:
            CSL_msReadFifo(hMs, arg);
            break;

        case CSL_MS_CMD_INT_ENABLE:
            CSL_msIntEnable (hMs);
            break;

        case CSL_MS_CMD_INT_DISABLE:
            CSL_msIntDisable (hMs);
            break;

        case CSL_MS_CMD_DMA_ENABLE:
            CSL_msDmaEnable (hMs);
            break;

        case CSL_MS_CMD_DMA_DISABLE:
            CSL_msDmaDisable (hMs);
            break;

        case CSL_MS_CMD_SET_BYTESWAP:
            CSL_msSetByteSwap (hMs, *(CSL_MsByteSwapSel*)arg);
            break;

        case CSL_MS_CMD_SET_CLKDIV:
            CSL_msSetClkDiv (hMs, *(CSL_MsClkDivRatio*)arg);
            break;

        default:
            status = CSL_ESYS_INVCMD ;
            break;
    }
    return status;
}