mcu/driver/audio/src/v1/audio_idma.c

/*****************************************************************************
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/*****************************************************************************
 *
 * Filename:
 * ---------
 *   L1audio_idma.c
 *
 * Project:
 * --------
 *   MAUI
 *
 * Description:
 * ------------
 *   transfer data by IDMA
 *   address-mode and short-mode could be predefined switched.
 *
 * Author:
 * -------
 * -------
 *
 *===========================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
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 *----------------------------------------------------------------------------
 * Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *===========================================================
*****************************************************************************/

#include "reg_base.h"
#include "sync_data.h"

// #include "audio_def.h"
#include "l1aud_common_def.h"

/*void IDMA_WriteToDSP_Duplicate(volatile kal_uint16 *dst, kal_uint16 *src, kal_uint32 length)
{
   kal_int32 i;
#ifdef L1AUDIO_IDMA_ALL_ADDRESS_MODE

   for(i=length; i>0;i-=2)
   {
      *dst++ = *src;
      *dst++ = *src++;
   }
#else

   *dst = *src;
   *IDMA_SHORT_ADDR = *src++;
   for(i=length-2; i>0;i-=2)
   {
      *IDMA_SHORT_ADDR=*src;
      *IDMA_SHORT_ADDR=*src++;
   }
#endif

   Data_Sync_Barrier();
}*/

void EMI_WriteToDSP(kal_uint16 *dst, kal_uint16 *src, kal_uint32 length)
{
   //kal_int32 i;
#ifdef L1AUDIO_IDMA_ALL_ADDRESS_MODE

   //for(i=length; i>0;i--)
   //   *dst++ = *src++;
   kal_mem_cpy(dst, (const void *)src, length<<1);
#else

   *dst = *src++;
   for(i=length-1; i>0;i--)
      *IDMA_SHORT_ADDR=*src++;

#endif

   Data_Sync_Barrier();
}


/*void IDMA_FillToDSP(volatile kal_uint16 *dst, kal_uint16 value, kal_uint32 length)
{
   kal_int32 i;
#ifdef L1AUDIO_IDMA_ALL_ADDRESS_MODE

   for(i=length; i>0;i--)
      *dst++ = value;

#else

   *dst = value;
   for(i=length-1; i>0;i--)
      *IDMA_SHORT_ADDR=value;

#endif

   Data_Sync_Barrier();
}*/

void EMI_ReadFromDSP(kal_uint16 *dst, kal_uint16 *src, kal_uint32 length)
{
   //kal_int32 i;

#ifdef L1AUDIO_IDMA_ALL_ADDRESS_MODE

   //for( i = length; i > 0; i-- )    
   //    *dst++ = *src++;
   kal_mem_cpy(dst, (const void *)src, length<<1);
#else

   *dst = *src;   // dummy read
   for(i=length; i>0;i--)
      *dst++ = *IDMA_SHORT_ADDR;

#endif
}
/*
void IDMA_ReadFromDSP_Skip_1(kal_uint16 *dst, volatile kal_uint16 *src, kal_uint32 length)
{
   kal_int32 i;

#ifdef L1AUDIO_IDMA_ALL_ADDRESS_MODE

   for( i = length; i > 0; i-- )
   {
       *dst++ = *src++;
       dst++;
   }
   
#else

   *dst = *src;   // dummy read
   for(i=length; i>0;i--)
   {
      *dst++ = *IDMA_SHORT_ADDR;
      dst++;	  
   }
   
#endif
}*/