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 iobase[2];
  16     uint32_t isairq[2];
  17     qemu_irq *irqs[2];
  18     int nirqs;
  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 void isa_connect_irq(ISADevice *dev, int devirq, int isairq);
  30 qemu_irq isa_reserve_irq(int isairq);
  31 void isa_init_irq(ISADevice *dev, qemu_irq *p);
  32 void isa_qdev_register(ISADeviceInfo *info);
  33 ISADevice *isa_create_simple(const char *name, uint32_t iobase, uint32_t iobase2,
  34                              uint32_t irq, uint32_t irq2);
  35
  36 extern target_phys_addr_t isa_mem_base;
  37
  38 void isa_mmio_init(target_phys_addr_t base, target_phys_addr_t size);
  39
  40 /* dma.c */
  41 int DMA_get_channel_mode (int nchan);
  42 int DMA_read_memory (int nchan, void *buf, int pos, int size);
  43 int DMA_write_memory (int nchan, void *buf, int pos, int size);
  44 void DMA_hold_DREQ (int nchan);
  45 void DMA_release_DREQ (int nchan);
  46 void DMA_schedule(int nchan);
  47 void DMA_init (int high_page_enable);
  48 void DMA_register_channel (int nchan,
  49                            DMA_transfer_handler transfer_handler,
  50                            void *opaque);
  51 #endif