_csl_vpsssetrdexp.c

来自「TI达芬奇dm644x各硬件模块测试代码」· C语言 代码 · 共 54 行

/** @file _csl_vpssSetRdExp.c
 *
 *  @brief    File for functional layer of CSL API @a CSL_vpssSetRdExp()
 *
 *  Description
 *    - The @a CSL_vpssSetRdExp() function definition & it's associated
 *      functions
 *
 *  @date 2nd June, 2005
 *  @author Jesse Villarreal
 */

#include <csl_vpss_aux.h>

#pragma CODE_SECTION (CSL_vpssSetRdExp, ".text:csl_section:vpss");

/** @brief	Sets the DMA read request expansion parameters
*/
CSL_Status  CSL_vpssSetRdExp(
    /** Pointer to the object that holds reference to the
     *  instance of RESZ requested after the call 
	 */
    CSL_VpssHandle                         hVpss,
    /** Sets the DMA read request expansion parameters
	 */
    CSL_VpssRdExpInfo						*data
	){
	
	CSL_Status  status=CSL_SOK;
    if(data == NULL) return (CSL_ESYS_INVPARAMS);

	switch (data->module) {

		case CSL_VPSS_PREV:
			CSL_FINS(hVpss->regs->SDR_REQ_EXP, VPSS_SDR_REQ_EXP_PRV_EXP, data->valRdExpand);
		    break;

		case CSL_VPSS_RESZ:
			CSL_FINS(hVpss->regs->SDR_REQ_EXP, VPSS_SDR_REQ_EXP_RESZ_EXP, (data->valRdExpand>>5));
		    break;
	
		case CSL_VPSS_HIST:	
			CSL_FINS(hVpss->regs->SDR_REQ_EXP, VPSS_SDR_REQ_EXP_HIST_EXP, data->valRdExpand);
			break;

		default:
			status = CSL_ESYS_INVPARAMS ;
			break;
	}

	return status;
}