Archipelago » qemu

struct dma_context_metadata {

        /* data descriptor md */

        uint16_t metadata;

};

struct etraxfs_dma_client

{

        /* DMA controller. */

        int channel;

        void *ctrl;

        /* client.  */

        struct {

                int (*push)(void *opaque, unsigned char *buf,

                            int len, bool eop);

                void (*pull)(void *opaque);

                void (*metadata_push)(void *opaque,

                                      const struct dma_context_metadata *md);

                void *opaque;

        } client;

};

void *etraxfs_dmac_init(target_phys_addr_t base, int nr_channels);

void etraxfs_dmac_connect(void *opaque, int channel, qemu_irq *line,

                          int input);

void etraxfs_dmac_connect_client(void *opaque, int c, 

                                 struct etraxfs_dma_client *cl);

int etraxfs_dmac_input(struct etraxfs_dma_client *client, 

                       void *buf, int len, int eop);