hw/isa.h

   1 #ifndef HW_ISA_H
   2 #define HW_ISA_H
   3
   4 /* ISA bus */
   5
   6 #include "ioport.h"
   7 #include "qdev.h"
   8
   9 typedef struct ISABus ISABus;
  10 typedef struct ISADevice ISADevice;
  11 typedef struct ISADeviceInfo ISADeviceInfo;
  12
  13 struct ISADevice {
  14     DeviceState qdev;
  15     uint32_t isairq[2];
  16     int nirqs;
  17     uint16_t ioports[32];
  18     int nioports;
  19 };
  20
  21 typedef int (*isa_qdev_initfn)(ISADevice *dev);
  22 struct ISADeviceInfo {
  23     DeviceInfo qdev;
  24     isa_qdev_initfn init;
  25 };
  26
  27 ISABus *isa_bus_new(DeviceState *dev);
  28 void isa_bus_irqs(qemu_irq *irqs);
  29 qemu_irq isa_reserve_irq(int isairq);
  30 void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq);
  31 void isa_init_ioport(ISADevice *dev, uint16_t ioport);
  32 void isa_init_ioport_range(ISADevice *dev, uint16_t start, uint16_t length);
  33 void isa_qdev_register(ISADeviceInfo *info);
  34 ISADevice *isa_create(const char *name);
  35 ISADevice *isa_create_simple(const char *name);
  36
  37 extern target_phys_addr_t isa_mem_base;
  38
  39 void isa_mmio_init(target_phys_addr_t base, target_phys_addr_t size);
  40
  41 /* dma.c */
  42 int DMA_get_channel_mode (int nchan);
  43 int DMA_read_memory (int nchan, void *buf, int pos, int size);
  44 int DMA_write_memory (int nchan, void *buf, int pos, int size);
  45 void DMA_hold_DREQ (int nchan);
  46 void DMA_release_DREQ (int nchan);
  47 void DMA_schedule(int nchan);
  48 void DMA_init(int high_page_enable, qemu_irq *cpu_request_exit);
  49 void DMA_register_channel (int nchan,
  50                            DMA_transfer_handler transfer_handler,
  51                            void *opaque);
  52 #endif