_csl_prevsetave.c

TI达芬奇dm644x各硬件模块测试代码

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

#include <csl_prev_aux.h>

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

/** @brief Configures the PREV using the values passed in through the
 *  Average data structure.
 */
CSL_Status  CSL_prevSetAve(
    /** Pointer to the object that holds reference to the
     *  instance of PREV requested after the call 
	 */
    CSL_PrevHandle                         hPrev,
    /** Pointer to Averager data used to set it up.
	 */
    CSL_PrevAveData                       *data
	){
	
    CSL_PrevRegsOvly prevRegs =  hPrev->regs; 
    if(data == NULL) return (CSL_ESYS_INVPARAMS);

	prevRegs->AVE = CSL_FMK(PREV_AVE_ODDDIST, data->oddDistAve)   |
					CSL_FMK(PREV_AVE_EVENDIST, data->evenDistAve) |
					CSL_FMK(PREV_AVE_COUNT, data->numPixelsAve);
	
	if(CSL_FEXT(prevRegs->PCR, PREV_PCR_DRKFEN))
		return (CSL_ESYS_NOTSUPPORTED);
	else
	    return (CSL_SOK);
}