_csl_prevsetcfa.c

TI的DM6446的硬件平台搭建的相关例子

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

#include <csl_prev_aux.h>

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

/** @brief Configures the CFA 
 *  value 
 */
CSL_Status  CSL_prevSetCFA(
    /** Pointer to the object that holds reference to the
     *  instance of PREV requested after the call 
	 */
    CSL_PrevHandle                         hPrev,
    /** Pointer to structure holding CFA format, vertical and horizontal 
     * gradient.
	 */
    CSL_PrevCFAData                        *data
	){

	CSL_PrevRegsOvly prevRegs =  hPrev->regs; 
    Uint32 i;
	
	if(data == NULL) return (CSL_ESYS_INVPARAMS);
    
	CSL_FINS(prevRegs->PCR,PREV_PCR_CFAFMT,data->cfaFormat);
	prevRegs->CFA = CSL_FMK(PREV_CFA_GRADTH_VER,data->vGradThres)|
                    CSL_FMK(PREV_CFA_GRADTH_HOR,data->hGradThres);

	/** Load cfa coefficient table if it is passed.
	*/
	if(data->cfaCoefTable != NULL)
	{
		CSL_PREV_0_REGS->SET_TBL_ADDRESS = 0x1400;
		for( i=0;i<576;i++) {
	    	CSL_PREV_0_REGS->SET_TBL_DATA = data->cfaCoefTable[i];
		}
	}

    return (CSL_SOK);
}