LXR qemu/include/hw/isa/i8257.h

   1#ifndef HW_I8257_H
   2#define HW_I8257_H
   3
   4#define TYPE_I8257 "i8257"
   5
   6typedef 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
  18typedef 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
  42
  43