isa: Add isa_register_portio_list()
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
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parent
03808f58e4
commit
d750073472
17
hw/isa-bus.c
17
hw/isa-bus.c
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@ -103,6 +103,23 @@ void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start)
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}
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}
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void isa_register_portio_list(ISADevice *dev, uint16_t start,
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const MemoryRegionPortio *pio_start,
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void *opaque, const char *name)
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{
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PortioList *piolist = g_new(PortioList, 1);
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/* START is how we should treat DEV, regardless of the actual
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contents of the portio array. This is how the old code
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actually handled e.g. the FDC device. */
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if (dev) {
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isa_init_ioport(dev, start);
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}
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portio_list_init(piolist, pio_start, opaque, name);
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portio_list_add(piolist, isabus->address_space_io, start);
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}
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static int isa_qdev_init(DeviceState *qdev, DeviceInfo *base)
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{
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ISADevice *dev = DO_UPCAST(ISADevice, qdev, qdev);
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31
hw/isa.h
31
hw/isa.h
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@ -28,7 +28,6 @@ ISABus *isa_bus_new(DeviceState *dev, MemoryRegion *address_space_io);
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void isa_bus_irqs(qemu_irq *irqs);
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qemu_irq isa_get_irq(int isairq);
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void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq);
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void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start);
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void isa_init_ioport(ISADevice *dev, uint16_t ioport);
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void isa_init_ioport_range(ISADevice *dev, uint16_t start, uint16_t length);
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void isa_qdev_register(ISADeviceInfo *info);
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@ -37,6 +36,36 @@ ISADevice *isa_create(const char *name);
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ISADevice *isa_try_create(const char *name);
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ISADevice *isa_create_simple(const char *name);
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/**
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* isa_register_ioport: Install an I/O port region on the ISA bus.
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*
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* Register an I/O port region via memory_region_add_subregion
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* inside the ISA I/O address space.
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*
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* @dev: the ISADevice against which these are registered; may be NULL.
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* @io: the #MemoryRegion being registered.
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* @start: the base I/O port.
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*/
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void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start);
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/**
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* isa_register_portio_list: Initialize a set of ISA io ports
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*
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* Several ISA devices have many dis-joint I/O ports. Worse, these I/O
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* ports can be interleaved with I/O ports from other devices. This
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* function makes it easy to create multiple MemoryRegions for a single
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* device and use the legacy portio routines.
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*
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* @dev: the ISADevice against which these are registered; may be NULL.
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* @start: the base I/O port against which the portio->offset is applied.
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* @portio: the ports, sorted by offset.
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* @opaque: passed into the old_portio callbacks.
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* @name: passed into memory_region_init_io.
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*/
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void isa_register_portio_list(ISADevice *dev, uint16_t start,
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const MemoryRegionPortio *portio,
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void *opaque, const char *name);
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extern target_phys_addr_t isa_mem_base;
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void isa_mmio_setup(MemoryRegion *mr, target_phys_addr_t size);
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