csl_spihwsetupraw.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_spiHwSetupRaw.c
 *
 *  @brief File for functional layer of CSL API @a CSL_spiHwSetupRaw()
 *
 *  Description
 *    - The @a CSL_spiHwSetupRaw() function definition & it's associated
 *      functions
 *
 *  Path: \\(CSLPATH)\\ipmodules\\spi\\src
 */

/* =============================================================================
 *  Revision History
 *  ===============
 *  11-oct-2004 Hs Updated code review comments
 *  01-Sep-2004 Hs File Created.
 * =============================================================================
 */

#include <csl_spi.h>

/** ============================================================================
 *   @n@b CSL_spiHwSetupRaw
 *
 *   @b Description
 *   @n This function initializes the device registers with the register-values
 *      provided through the Config Data structure.
 *
 *   @b Arguments
 *   @verbatim
            hSpi            Handle to the SPI

            config          Pointer to config structure
     @endverbatim
 *
 *   <b> Return Value </b>  CSL_Status
 *   @li                    CSL_SOK             - Configuration successful
 *   @li                    CSL_ESYS_BADHANDLE  - Invalid handle
 *   @li                    CSL_ESYS_INVPARAMS  - Configuration is not
 *                                                properly initialized
 *
 *   <b> Pre Condition </b>
 *   @n  None
 *
 *   <b> Post Condition </b>
 *   @n  The registers of the specified SPI instance will be setup
 *       according to value passed.
 *
 *   @b Modifies
 *   @n Hardware registers of the specified SPI instance.
 *
 *   @b Example
 *   @verbatim
        CSL_SpiHandle       hSpi;
        CSL_SpiConfig       config = CSL_SPI_CONFIG_DEFAULTS;
        CSL_Status          status;

        status = CSL_spiHwSetupRaw (hSpi, &config);

     @endverbatim
 * ===========================================================================
 */
#pragma CODE_SECTION (CSL_spiHwSetupRaw, ".text:csl_section:spi");
CSL_Status CSL_spiHwSetupRaw (
    CSL_SpiHandle               hSpi,
    CSL_SpiConfig              *config
)
{
    if (hSpi == NULL) {
        return CSL_ESYS_BADHANDLE;
    }

    if (config == NULL ) {
        return CSL_ESYS_INVPARAMS;
    }

    hSpi->regs->SPIGCR0     = config->SPIGCR0;
    hSpi->regs->SPIGCR1     = config->SPIGCR1;
    hSpi->regs->SPIINT0     = config->SPIINT0;
    hSpi->regs->SPILVL      = config->SPILVL;
    hSpi->regs->SPIFLG      = config->SPIFLG;
    hSpi->regs->SPIPC0      = config->SPIPC0;
    hSpi->regs->SPIPC1      = config->SPIPC1;
    hSpi->regs->SPIPC2      = config->SPIPC2;
    hSpi->regs->SPIPC3      = config->SPIPC3;
    hSpi->regs->SPIPC4      = config->SPIPC4;
    hSpi->regs->SPIPC5      = config->SPIPC5;
    hSpi->regs->SPIPC6      = config->SPIPC6;
    hSpi->regs->SPIPC7      = config->SPIPC7;
    hSpi->regs->SPIPC8      = config->SPIPC8;
    hSpi->regs->SPIDAT0     = config->SPIDAT0;
    hSpi->regs->SPIDAT1     = config->SPIDAT1;
    hSpi->regs->SPIDELAY    = config->SPIDELAY;
    hSpi->regs->SPIDEF      = config->SPIDEF;
    hSpi->regs->SPIFMT[0]   = config->SPIFMT[0];
    hSpi->regs->SPIFMT[1]   = config->SPIFMT[1];
    hSpi->regs->SPIFMT[2]   = config->SPIFMT[2];
    hSpi->regs->SPIFMT[3]   = config->SPIFMT[3];
    hSpi->regs->MIBSPIE     = config->MIBSPIE;

    return CSL_SOK;
}