1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
#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;
uint32_t isairq[2];
int nirqs;
int ioport_id;
};
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_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);
/**
* isa_register_ioport: Install an I/O port region on the ISA bus.
*
* Register an I/O port region via memory_region_add_subregion
* inside the ISA I/O address space.
*
* @dev: the ISADevice against which these are registered; may be NULL.
* @io: the #MemoryRegion being registered.
* @start: the base I/O port.
*/
void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start);
/**
* isa_register_portio_list: Initialize a set of ISA io ports
*
* Several ISA devices have many dis-joint I/O ports. Worse, these I/O
* ports can be interleaved with I/O ports from other devices. This
* function makes it easy to create multiple MemoryRegions for a single
* device and use the legacy portio routines.
*
* @dev: the ISADevice against which these are registered; may be NULL.
* @start: the base I/O port against which the portio->offset is applied.
* @portio: the ports, sorted by offset.
* @opaque: passed into the old_portio callbacks.
* @name: passed into memory_region_init_io.
*/
void isa_register_portio_list(ISADevice *dev, uint16_t start,
const MemoryRegionPortio *portio,
void *opaque, 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
|
