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 };
  18
  19 typedef int (*isa_qdev_initfn)(ISADevice *dev);
  20 struct ISADeviceInfo {
  21     DeviceInfo qdev;
  22     isa_qdev_initfn init;
  23 };
  24
  25 ISABus *isa_bus_new(DeviceState *dev);
  26 void isa_bus_irqs(qemu_irq *irqs);
  27 qemu_irq isa_reserve_irq(int isairq);
  28 void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq);
  29 void isa_qdev_register(ISADeviceInfo *info);
  30 ISADevice *isa_create(const char *name);
  31 ISADevice *isa_create_simple(const char *name);
  32
  33 extern target_phys_addr_t isa_mem_base;
  34
  35 void isa_mmio_init(target_phys_addr_t base, target_phys_addr_t size);
  36
  37 /* dma.c */
  38 int DMA_get_channel_mode (int nchan);
  39 int DMA_read_memory (int nchan, void *buf, int pos, int size);
  40 int DMA_write_memory (int nchan, void *buf, int pos, int size);
  41 void DMA_hold_DREQ (int nchan);
  42 void DMA_release_DREQ (int nchan);
  43 void DMA_schedule(int nchan);
  44 void DMA_init (int high_page_enable);
  45 void DMA_register_channel (int nchan,
  46                            DMA_transfer_handler transfer_handler,
  47                            void *opaque);
  48 #endif