C++ (Cpp) wpalDmaMemoryAllocate示例

示例#1

文件： wlan_qct_wdi_bd.c 项目： Abhinav1997/android_kernel_lge_msm8226

/*
 * Create a memory pool which is DMA capabale
 */
WDI_Status WDI_DS_MemPoolCreate(WDI_DS_BdMemPoolType *memPool, wpt_uint8 chunkSize,
                                                                  wpt_uint8 numChunks)
{
  wpt_uint8 staLoop;

  //Allocate all the max size and align them to a double word boundary. The first 8 bytes are control bytes.
  memPool->numChunks = 0;
  memPool->chunkSize = chunkSize + 16 - (chunkSize%8);
  memPool->pVirtBaseAddress = wpalDmaMemoryAllocate((numChunks * memPool->chunkSize),
          &(memPool->pPhysBaseAddress));

  if( memPool->pVirtBaseAddress == 0)
    return WDI_STATUS_E_FAILURE;

  memPool->AllocationBitmap = (wpt_uint32*)wpalMemoryAllocate( (numChunks/32 + 1) * sizeof(wpt_uint32));
  if( NULL == memPool->AllocationBitmap)
     return WDI_STATUS_E_FAILURE;
  wpalMemoryZero(memPool->AllocationBitmap, (numChunks/32+1)*sizeof(wpt_uint32));

  //Initialize resource infor per STA
  for(staLoop = 0; staLoop < WDI_DS_MAX_STA_ID; staLoop++)
  {
    memPool->numChunkSTA[staLoop].STAIndex = 0xFF;
    memPool->numChunkSTA[staLoop].numChunkReservedBySTA = 0;
    memPool->numChunkSTA[staLoop].validIdx = 0;
  }

  return WDI_STATUS_SUCCESS;
}

示例#2

文件： wlan_qct_wdi_bd.c 项目： Alex-V2/One_M8_4.4.3_kernel

WDI_Status WDI_DS_MemPoolCreate(WDI_DS_BdMemPoolType *memPool, wpt_uint8 chunkSize,
                                                                  wpt_uint8 numChunks)
{
  wpt_uint8 staLoop;

  
  memPool->numChunks = 0;
  memPool->chunkSize = chunkSize + 16 - (chunkSize%8);
  memPool->pVirtBaseAddress = wpalDmaMemoryAllocate((numChunks * memPool->chunkSize),
          &(memPool->pPhysBaseAddress));

  if( memPool->pVirtBaseAddress == 0)
    return WDI_STATUS_E_FAILURE;

  memPool->AllocationBitmap = (wpt_uint32*)wpalMemoryAllocate( (numChunks/32 + 1) * sizeof(wpt_uint32));
  if( NULL == memPool->AllocationBitmap)
     return WDI_STATUS_E_FAILURE;
  wpalMemoryZero(memPool->AllocationBitmap, (numChunks/32+1)*sizeof(wpt_uint32));

  
  for(staLoop = 0; staLoop < WDI_DS_MAX_STA_ID; staLoop++)
  {
    memPool->numChunkSTA[staLoop].STAIndex = 0xFF;
    memPool->numChunkSTA[staLoop].numChunkReservedBySTA = 0;
    memPool->numChunkSTA[staLoop].validIdx = 0;
  }

  return WDI_STATUS_SUCCESS;
}