hw/isa.h

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