include/hw/char/parallel.h

   1 #ifndef HW_PARALLEL_H
   2 #define HW_PARALLEL_H
   3
   4 #include "exec/memory.h"
   5 #include "hw/isa/isa.h"
   6 #include "hw/irq.h"
   7 #include "chardev/char-fe.h"
   8 #include "chardev/char.h"
   9
  10 typedef struct ParallelState {
  11     MemoryRegion iomem;
  12     uint8_t dataw;
  13     uint8_t datar;
  14     uint8_t status;
  15     uint8_t control;
  16     qemu_irq irq;
  17     int irq_pending;
  18     CharBackend chr;
  19     int hw_driver;
  20     int epp_timeout;
  21     uint32_t last_read_offset; /* For debugging */
  22     /* Memory-mapped interface */
  23     int it_shift;
  24 } ParallelState;
  25
  26 void parallel_hds_isa_init(ISABus *bus, int n);
  27
  28 bool parallel_mm_init(MemoryRegion *address_space,
  29                       hwaddr base, int it_shift, qemu_irq irq,
  30                       Chardev *chr);
  31
  32 #endif