global.c

来自「6410BSP3」· C语言 代码 · 共 87 行

//
// Copyright (c) Samsung Electronics. Co. LTD.  All rights reserved.
//
/*++
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.
*/

#include "fgl.h"
#include "register.h"

#ifdef USE_INTERRUPT
#include <bsp.h>
extern DWORD                 g_IntrFIMG;
extern HANDLE                g_hPipeEvent;
#endif

void _gl_asm_nop(void);

void WaitForPipelineStatus(unsigned int pipelineFlags)
{
    unsigned int pipeline_state;    
      WRITEREG(FGGB_PIPEMASK, pipelineFlags);
      do
      {
          WRITEREG(FGGB_INTMASK, 1);    
          WaitForSingleObject(g_hPipeEvent,INFINITE);
          WRITEREG(FGGB_INTMASK, 0);        
          WRITEREG(FGGB_INTPENDING, 1);
          InterruptDone(g_IntrFIMG);        
          READREGP(FGGB_PIPEINTSTATE, pipeline_state);        
      }
    while(pipeline_state & pipelineFlags);   
}

/***************************************************************************** 
 * FUNCTIONS: fglSoftReset
 * SYNOPSIS: This function resets FIMG-3DSE, but the SFR values are not affected
 * PARAMETERS:
 * RETURNS: FGL_ERR_NO_ERROR - always.
 * ERRNO:
 *****************************************************************************/

FGL_Error
fglSoftReset(void)
{
    unsigned int i;
    
    WRITEREG(FGGB_RST, FGL_TRUE);
    
    /* delay */
    for(i = 0; i < 50; i++)
    {
#ifndef __GNUC__
    #ifndef WIN32
        __asm ("nop");
    #else
        _gl_asm_nop();
    #endif
#else
        __asm__ __volatile__ ("nop");
#endif
    }

    WRITEREG(FGGB_RST, FGL_FALSE);

    return FGL_ERR_NO_ERROR;
}

/***************************************************************************** 
 * FUNCTIONS: fglGetVersion
 * SYNOPSIS: This function gets FIMG-3DSE version.
 * PARAMETERS: [OUT] ver : FIMG3DSE version code
 * RETURNS: FGL_ERR_NO_ERROR - always.
 * ERRNO:
 *****************************************************************************/

FGL_Error
fglGetVersion(unsigned int* ver)
{

    READREGP(FGGB_VERSION, *ver);

    return FGL_ERR_NO_ERROR;
}