qdev: don't access name through info
[qemu.git] / 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 #define ISA_NUM_IRQS 16
11
12 typedef struct ISADevice ISADevice;
13 typedef struct ISADeviceInfo ISADeviceInfo;
14
15 struct ISABus {
16 BusState qbus;
17 MemoryRegion *address_space_io;
18 qemu_irq *irqs;
19 };
20
21 struct ISADevice {
22 DeviceState qdev;
23 uint32_t isairq[2];
24 int nirqs;
25 int ioport_id;
26 };
27
28 typedef int (*isa_qdev_initfn)(ISADevice *dev);
29 struct ISADeviceInfo {
30 DeviceInfo qdev;
31 isa_qdev_initfn init;
32 };
33
34 ISABus *isa_bus_new(DeviceState *dev, MemoryRegion *address_space_io);
35 void isa_bus_irqs(ISABus *bus, qemu_irq *irqs);
36 qemu_irq isa_get_irq(ISADevice *dev, int isairq);
37 void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq);
38 void isa_qdev_register(ISADeviceInfo *info);
39 MemoryRegion *isa_address_space(ISADevice *dev);
40 ISADevice *isa_create(ISABus *bus, const char *name);
41 ISADevice *isa_try_create(ISABus *bus, const char *name);
42 ISADevice *isa_create_simple(ISABus *bus, const char *name);
43
44 /**
45 * isa_register_ioport: Install an I/O port region on the ISA bus.
46 *
47 * Register an I/O port region via memory_region_add_subregion
48 * inside the ISA I/O address space.
49 *
50 * @dev: the ISADevice against which these are registered; may be NULL.
51 * @io: the #MemoryRegion being registered.
52 * @start: the base I/O port.
53 */
54 void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start);
55
56 /**
57 * isa_register_portio_list: Initialize a set of ISA io ports
58 *
59 * Several ISA devices have many dis-joint I/O ports. Worse, these I/O
60 * ports can be interleaved with I/O ports from other devices. This
61 * function makes it easy to create multiple MemoryRegions for a single
62 * device and use the legacy portio routines.
63 *
64 * @dev: the ISADevice against which these are registered; may be NULL.
65 * @start: the base I/O port against which the portio->offset is applied.
66 * @portio: the ports, sorted by offset.
67 * @opaque: passed into the old_portio callbacks.
68 * @name: passed into memory_region_init_io.
69 */
70 void isa_register_portio_list(ISADevice *dev, uint16_t start,
71 const MemoryRegionPortio *portio,
72 void *opaque, const char *name);
73
74 extern target_phys_addr_t isa_mem_base;
75
76 void isa_mmio_setup(MemoryRegion *mr, target_phys_addr_t size);
77 void isa_mmio_init(target_phys_addr_t base, target_phys_addr_t size);
78
79 /* dma.c */
80 int DMA_get_channel_mode (int nchan);
81 int DMA_read_memory (int nchan, void *buf, int pos, int size);
82 int DMA_write_memory (int nchan, void *buf, int pos, int size);
83 void DMA_hold_DREQ (int nchan);
84 void DMA_release_DREQ (int nchan);
85 void DMA_schedule(int nchan);
86 void DMA_init(int high_page_enable, qemu_irq *cpu_request_exit);
87 void DMA_register_channel (int nchan,
88 DMA_transfer_handler transfer_handler,
89 void *opaque);
90 #endif