haraldwolff/qemu-patch-raspberry4
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isa: Add isa_register_portio_list()

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Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2011-09-26 14:52:44 +03:00
parent 03808f58e4
commit d750073472
2 changed files with 47 additions and 1 deletions
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17
hw/isa-bus.c
View file

@ -103,6 +103,23 @@ void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start)
}
}
void isa_register_portio_list(ISADevice *dev, uint16_t start,
const MemoryRegionPortio *pio_start,
void *opaque, const char *name)
{
PortioList *piolist = g_new(PortioList, 1);
/* START is how we should treat DEV, regardless of the actual
contents of the portio array. This is how the old code
actually handled e.g. the FDC device. */
if (dev) {
isa_init_ioport(dev, start);
}
portio_list_init(piolist, pio_start, opaque, name);
portio_list_add(piolist, isabus->address_space_io, start);
}
static int isa_qdev_init(DeviceState *qdev, DeviceInfo *base)
{
ISADevice *dev = DO_UPCAST(ISADevice, qdev, qdev);

31
hw/isa.h
View file

@ -28,7 +28,6 @@ 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);
@ -37,6 +36,36 @@ 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);