csl_osdgethwstatus.c

TI达芬奇dm644x各硬件模块测试代码

/** @file csl_osdGetHwStatus.c
 *
 *    @brief    File for functional layer of CSL API @a CSL_osdGetHwStatus()
 *
 *  Description
 *    - The @a CSL_osdGetHwStatus() function definition & it's associated
 *      functions
 *
 *  Modification 1
 *    - Modified on: 1/10/2004
 *    - Reason: created the sources
 *
 *  @date 7th Oct, 2004
 *    @author Sandeep Tiwari.
 */


#include <csl_osd.h>
#include <_csl_osd_aux.h>

#pragma CODE_SECTION  (CSL_osdGetHwStatus,".text:csl_section:osd")


/** @brief Gets the status of the different operations.
 */


CSL_Status CSL_osdGetHwStatus(
            /** Pointer to the object that holds reference to the
            *  instance of OSD requested after the call 
	      */
           CSL_OsdHandle             hOsd,
           /** The query to this API which indicates the status 
           *  to be returned 
       	 */

      
           CSL_OsdHwStatusQuery      query,
            /** Placeholder to return the status. @a void* casted */


           void                       *response
           )   
{
  
           CSL_Status  status=CSL_SOK;
       
           switch(query){
           /** Get OSD window data address */
 
           case CSL_OSD_QUERY_WIN_ADDR:
		     _CSL_osdGetWinAddr(hOsd, (CSL_GetWinAddr *) response);
		    break;

	     /** Get OSD video window 0, ping pong buffer address */ 

	     case CSL_OSD_QUERY_PINGPONG_BUFFER_ADDR:

			*(Uint32 *)response =  CSL_FEXT(hOsd->regs->PPVWIN0ADR,OSD_PPVWIN0ADR_PPVWIN0ADR);
			break;
           /** Get the busy status of the CLUT */
           case CSL_OSD_QUERY_CLUT_BUSY:
                  *(Uint16*)response = CSL_FEXT(hOsd->regs->MISCCTL, OSD_MISCCTL_CPBSY);
                  break;

           default:
    	        status = CSL_ESYS_INVQUERY;
		        break;	   

          }

          return status;

  }