include/hw/isa/i8257.h

   1 #ifndef HW_I8257_H
   2 #define HW_I8257_H
   3
   4 #define TYPE_I8257 "i8257"
   5
   6 typedef struct I8257Regs {
   7     int now[2];
   8     uint16_t base[2];
   9     uint8_t mode;
  10     uint8_t page;
  11     uint8_t pageh;
  12     uint8_t dack;
  13     uint8_t eop;
  14     IsaDmaTransferHandler transfer_handler;
  15     void *opaque;
  16 } I8257Regs;
  17
  18 typedef struct I8257State {
  19     /* <private> */
  20     ISADevice parent_obj;
  21
  22     /* <public> */
  23     int32_t base;
  24     int32_t page_base;
  25     int32_t pageh_base;
  26     int32_t dshift;
  27
  28     uint8_t status;
  29     uint8_t command;
  30     uint8_t mask;
  31     uint8_t flip_flop;
  32     I8257Regs regs[4];
  33     MemoryRegion channel_io;
  34     MemoryRegion cont_io;
  35
  36     QEMUBH *dma_bh;
  37     bool dma_bh_scheduled;
  38     int running;
  39 } I8257State;
  40
  41 #endif