6 #include "exec/ioport.h"
7 #include "exec/memory.h"
10 #define ISA_NUM_IRQS 16
12 #define TYPE_ISA_DEVICE "isa-device"
13 #define ISA_DEVICE(obj) \
14 OBJECT_CHECK(ISADevice, (obj), TYPE_ISA_DEVICE)
15 #define ISA_DEVICE_CLASS(klass) \
16 OBJECT_CLASS_CHECK(ISADeviceClass, (klass), TYPE_ISA_DEVICE)
17 #define ISA_DEVICE_GET_CLASS(obj) \
18 OBJECT_GET_CLASS(ISADeviceClass, (obj), TYPE_ISA_DEVICE)
20 #define TYPE_ISA_BUS "ISA"
21 #define ISA_BUS(obj) OBJECT_CHECK(ISABus, (obj), TYPE_ISA_BUS)
23 typedef struct ISADeviceClass {
24 DeviceClass parent_class;
25 int (*init)(ISADevice *dev);
30 MemoryRegion *address_space_io;
41 ISABus *isa_bus_new(DeviceState *dev, MemoryRegion *address_space_io);
42 void isa_bus_irqs(ISABus *bus, qemu_irq *irqs);
43 qemu_irq isa_get_irq(ISADevice *dev, int isairq);
44 void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq);
45 MemoryRegion *isa_address_space(ISADevice *dev);
46 MemoryRegion *isa_address_space_io(ISADevice *dev);
47 ISADevice *isa_create(ISABus *bus, const char *name);
48 ISADevice *isa_try_create(ISABus *bus, const char *name);
49 ISADevice *isa_create_simple(ISABus *bus, const char *name);
51 ISADevice *isa_vga_init(ISABus *bus);
54 * isa_register_ioport: Install an I/O port region on the ISA bus.
56 * Register an I/O port region via memory_region_add_subregion
57 * inside the ISA I/O address space.
59 * @dev: the ISADevice against which these are registered; may be NULL.
60 * @io: the #MemoryRegion being registered.
61 * @start: the base I/O port.
63 void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start);
66 * isa_register_portio_list: Initialize a set of ISA io ports
68 * Several ISA devices have many dis-joint I/O ports. Worse, these I/O
69 * ports can be interleaved with I/O ports from other devices. This
70 * function makes it easy to create multiple MemoryRegions for a single
71 * device and use the legacy portio routines.
73 * @dev: the ISADevice against which these are registered; may be NULL.
74 * @start: the base I/O port against which the portio->offset is applied.
75 * @portio: the ports, sorted by offset.
76 * @opaque: passed into the old_portio callbacks.
77 * @name: passed into memory_region_init_io.
79 void isa_register_portio_list(ISADevice *dev, uint16_t start,
80 const MemoryRegionPortio *portio,
81 void *opaque, const char *name);
83 static inline ISABus *isa_bus_from_device(ISADevice *d)
85 return DO_UPCAST(ISABus, qbus, d->qdev.parent_bus);
88 extern hwaddr isa_mem_base;
90 void isa_mmio_setup(MemoryRegion *mr, hwaddr size);
91 void isa_mmio_init(hwaddr base, hwaddr size);
94 int DMA_get_channel_mode (int nchan);
95 int DMA_read_memory (int nchan, void *buf, int pos, int size);
96 int DMA_write_memory (int nchan, void *buf, int pos, int size);
97 void DMA_hold_DREQ (int nchan);
98 void DMA_release_DREQ (int nchan);
99 void DMA_schedule(int nchan);
100 void DMA_init(int high_page_enable, qemu_irq *cpu_request_exit);
101 void DMA_register_channel (int nchan,
102 DMA_transfer_handler transfer_handler,