csl_edcpageenable.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_edcPageEnable.c
 *
 *  @brief    File for functional layer of CSL API @a CSL_edcPageEnable()
 *
 *  Description
 *    - The @a CSL_edcPageEnable() function definition & it's associated functions
 *
 *  @date 14 July, 2004
 *  @author Chad Courtney
 */

#include <csl_edc.h>
#pragma CODE_SECTION (CSL_edcPageEnable, ".text:csl_section:edc");


/** Reserves the specified edc for use. The device can be 
 * re-opened anytime after it has been normally closed if so
 * required. The handle returned by this call is input as an
 * essential argument for rest of the APIs described for this
 * module.
 * 
 * <b> Usage Constraints: </b>
 * The CSL system as well as EDC must be succesfully initialized
 * via @a CSL_sysInit() 
 */

/** @brief Enables the pages for EDC specified by a 32-bit mask.
 */ 
CSL_Status  CSL_edcPageEnable
(
	/** Specifies what pages of the given map(s) are to be enabled by setting the 
	* bit corresponding to the page to 1
	*/
	Uint32						mask,
	/** Specificies which map(s) to apply mask to (MAP0, MAP1, or BOTH)
	 */
	CSL_EdcUmap					umap
)
{
	CSL_Status status = CSL_SOK;
	
	switch(umap){
	
	case CSL_EDC_UMAP0:		/* Apply Page Enables to UMAP0 */
			CSL_FINS(((CSL_EdcRegs*)CSL_EDC_REGS)->L2EDEN0, EDC_L2EDEN0_EN, mask);		
		break;
		
	case CSL_EDC_UMAP1:		/* Apply Page Enables to UMAP1 */
			CSL_FINS(((CSL_EdcRegs*)CSL_EDC_REGS)->L2EDEN1, EDC_L2EDEN1_EN, mask);		
		break;
		
	case CSL_EDC_UMAPBOTH:	/* Apply Page Enables to both UMAP0 and UMAP1 */
			CSL_FINS(((CSL_EdcRegs*)CSL_EDC_REGS)->L2EDEN0, EDC_L2EDEN0_EN, mask);		
			CSL_FINS(((CSL_EdcRegs*)CSL_EDC_REGS)->L2EDEN1, EDC_L2EDEN1_EN, mask);		
		break;
		
    default:
    	status = CSL_ESYS_INVQUERY;			
    }
    
	return status;    
}