_csl_prevsethorzvert.c

TI达芬奇dm644x各硬件模块测试代码

/** @file _csl_prevSetHorzVert.c
 *
 *  @brief    File for functional layer of CSL API @a CSL_prevSetHorzVert()
 *
 *  Description
 *    - The @a CSL_prevSetHorzVert() function definition & it's associated
 *      functions
 *
 *  @date 18th October, 2004
 *  @author Vignesh LA.
 */

#include <csl_prev_aux.h>

#pragma CODE_SECTION (CSL_prevSetHorzVert, ".text:csl_section:prev");

/** @brief Configures the Horizontal and vertical values 
 *   
 */
CSL_Status  CSL_prevSetHorzVert(
    /** Pointer to the object that holds reference to the
     *  instance of PREV requested after the call 
	 */
    CSL_PrevHandle                         hPrev,
    /** Pointer to structure holding horizontal and vertical  
     * parameters.
	 */
    CSL_PrevHorzVertData                 *data
	){
	CSL_PrevRegsOvly prevRegs =  hPrev->regs; 
    if(data == NULL) return (CSL_ESYS_INVPARAMS);
    
	prevRegs->HORZ_INFO = CSL_FMK(PREV_HORZ_INFO_SPH,data->startPixelHorz)|
						  CSL_FMK(PREV_HORZ_INFO_EPH,data->endPixelHorz);

	prevRegs->VERT_INFO = CSL_FMK(PREV_VERT_INFO_SLV,data->startLineVert)|
						  CSL_FMK(PREV_VERT_INFO_ELV,data->endLineVert);

    return (CSL_SOK);
}