hw/etraxfs_dma.h

   1 struct dma_context_metadata {
   2         /* data descriptor md */
   3         uint16_t metadata;
   4 };
   5
   6 struct etraxfs_dma_client
   7 {
   8         /* DMA controller. */
   9         int channel;
  10         void *ctrl;
  11
  12         /* client.  */
  13         struct {
  14                 int (*push)(void *opaque, unsigned char *buf,
  15                             int len, bool eop);
  16                 void (*pull)(void *opaque);
  17                 void (*metadata_push)(void *opaque,
  18                                       const struct dma_context_metadata *md);
  19                 void *opaque;
  20         } client;
  21 };
  22
  23 void *etraxfs_dmac_init(hwaddr base, int nr_channels);
  24 void etraxfs_dmac_connect(void *opaque, int channel, qemu_irq *line,
  25                           int input);
  26 void etraxfs_dmac_connect_client(void *opaque, int c,
  27                                  struct etraxfs_dma_client *cl);
  28 int etraxfs_dmac_input(struct etraxfs_dma_client *client,
  29                        void *buf, int len, int eop);