rom/usb/pciusb/buffer.c

   1 #include <aros/debug.h>
   2 #include <devices/usbhardware.h>
   3 #include <exec/memory.h>
   4 #include <proto/exec.h>
   5
   6 #if __WORDSIZE == 64
   7
   8 APTR usbGetBuffer(APTR data, ULONG len, UWORD dir)
   9 {
  10     APTR ret = data;
  11
  12     if (len && (((IPTR)data + len - 1) >> 32) != 0)
  13     {
  14         ret = AllocVec(len, MEMF_31BIT|MEMF_PUBLIC);
  15
  16         if (ret && (dir == UHDIR_OUT))
  17             CopyMem(data, ret, len);
  18    }
  19
  20     return ret;
  21 }
  22
  23 void usbReleaseBuffer(APTR buffer, APTR data, ULONG len, UWORD dir)
  24 {
  25     if (buffer && (buffer != data))
  26     {
  27         if (len && (dir == UHDIR_IN))
  28             CopyMem(buffer, data, len);
  29
  30         FreeVec(buffer);
  31     }
  32 }
  33
  34 #endif