qemu-patch-raspberry4/hw/isa.h
Richard Henderson 78e2059352 isa: add isa_register_ioport()
To replace isa_init_ioport and isa_init_ioport_range
as the ISA devices are converted to the memory api.

[avi: use memory_region_size()]

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-25 14:58:36 +03:00

60 lines
1.8 KiB
C

#ifndef HW_ISA_H
#define HW_ISA_H
/* ISA bus */
#include "ioport.h"
#include "memory.h"
#include "qdev.h"
typedef struct ISABus ISABus;
typedef struct ISADevice ISADevice;
typedef struct ISADeviceInfo ISADeviceInfo;
struct ISADevice {
DeviceState qdev;
MemoryRegion *io[32];
uint32_t isairq[2];
uint16_t ioports[32];
int nirqs;
int nioports;
int nio;
};
typedef int (*isa_qdev_initfn)(ISADevice *dev);
struct ISADeviceInfo {
DeviceInfo qdev;
isa_qdev_initfn init;
};
ISABus *isa_bus_new(DeviceState *dev, MemoryRegion *address_space_io);
void isa_bus_irqs(qemu_irq *irqs);
qemu_irq isa_get_irq(int isairq);
void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq);
void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start);
void isa_init_ioport(ISADevice *dev, uint16_t ioport);
void isa_init_ioport_range(ISADevice *dev, uint16_t start, uint16_t length);
void isa_qdev_register(ISADeviceInfo *info);
MemoryRegion *isa_address_space(ISADevice *dev);
ISADevice *isa_create(const char *name);
ISADevice *isa_try_create(const char *name);
ISADevice *isa_create_simple(const char *name);
extern target_phys_addr_t isa_mem_base;
void isa_mmio_setup(MemoryRegion *mr, target_phys_addr_t size);
void isa_mmio_init(target_phys_addr_t base, target_phys_addr_t size);
/* dma.c */
int DMA_get_channel_mode (int nchan);
int DMA_read_memory (int nchan, void *buf, int pos, int size);
int DMA_write_memory (int nchan, void *buf, int pos, int size);
void DMA_hold_DREQ (int nchan);
void DMA_release_DREQ (int nchan);
void DMA_schedule(int nchan);
void DMA_init(int high_page_enable, qemu_irq *cpu_request_exit);
void DMA_register_channel (int nchan,
DMA_transfer_handler transfer_handler,
void *opaque);
#endif