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 {
  24     void *opaque;
  25     void *channel;
  26     int len;
  27     int is_last;
  28     void *buf;
  29     int buf_pos;
  30     int buf_len;
  31 } DBDMA_transfer;
  32
  33 typedef int (*DBDMA_transfer_cb)(DBDMA_transfer *info);
  34 typedef int (*DBDMA_transfer_handler)(DBDMA_transfer *info,
  35                                       DBDMA_transfer_cb cb);
  36
  37 void DBDMA_register_channel(void *dbdma, int nchan, qemu_irq irq,
  38                             DBDMA_transfer_handler transfer_handler,
  39                             void *opaque);
  40 void DBDMA_schedule(void);
  41 void* DBDMA_init (int *dbdma_mem_index);