hw/mac_dbdma.h

   1 /*
   2  * Copyright (c) 2009 Laurent Vivier
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to deal
   6  * in the Software without restriction, including without limitation the rights
   7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  * copies of the Software, and to permit persons to whom the Software is
   9  * furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  20  * THE SOFTWARE.
  21  */
  22 #ifndef HW_MAC_DBDMA_H
  23 #define HW_MAC_DBDMA_H 1
  24
  25 #include "exec/memory.h"
  26
  27 typedef struct DBDMA_io DBDMA_io;
  28
  29 typedef void (*DBDMA_flush)(DBDMA_io *io);
  30 typedef void (*DBDMA_rw)(DBDMA_io *io);
  31 typedef void (*DBDMA_end)(DBDMA_io *io);
  32 struct DBDMA_io {
  33     void *opaque;
  34     void *channel;
  35     hwaddr addr;
  36     int len;
  37     int is_last;
  38     int is_dma_out;
  39     DBDMA_end dma_end;
  40 };
  41
  42
  43 void DBDMA_register_channel(void *dbdma, int nchan, qemu_irq irq,
  44                             DBDMA_rw rw, DBDMA_flush flush,
  45                             void *opaque);
  46 void* DBDMA_init (MemoryRegion **dbdma_mem);
  47
  48 #endif