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
  23 typedef struct DBDMA_io DBDMA_io;
  24
  25 typedef void (*DBDMA_flush)(DBDMA_io *io);
  26 typedef void (*DBDMA_rw)(DBDMA_io *io);
  27 typedef void (*DBDMA_end)(DBDMA_io *io);
  28 struct DBDMA_io {
  29     void *opaque;
  30     void *channel;
  31     target_phys_addr_t addr;
  32     int len;
  33     int is_last;
  34     int is_dma_out;
  35     DBDMA_end dma_end;
  36 };
  37
  38
  39 void DBDMA_register_channel(void *dbdma, int nchan, qemu_irq irq,
  40                             DBDMA_rw rw, DBDMA_flush flush,
  41                             void *opaque);
  42 void DBDMA_schedule(void);
  43 void* DBDMA_init (int *dbdma_mem_index);