diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/isa-bus.c | 10 | ||||
| -rw-r--r-- | hw/isa.h | 5 |
2 files changed, 14 insertions, 1 deletions
diff --git a/hw/isa-bus.c b/hw/isa-bus.c index d06750589b..6c15a31fe8 100644 --- a/hw/isa-bus.c +++ b/hw/isa-bus.c @@ -108,6 +108,16 @@ void isa_init_ioport(ISADevice *dev, uint16_t ioport) isa_init_ioport_range(dev, ioport, 1); } +void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start) +{ + memory_region_add_subregion(isabus->address_space_io, start, io); + if (dev != NULL) { + assert(dev->nio < ARRAY_SIZE(dev->io)); + dev->io[dev->nio++] = io; + isa_init_ioport_range(dev, start, memory_region_size(io)); + } +} + static int isa_qdev_init(DeviceState *qdev, DeviceInfo *base) { ISADevice *dev = DO_UPCAST(ISADevice, qdev, qdev); @@ -13,10 +13,12 @@ typedef struct ISADeviceInfo ISADeviceInfo; struct ISADevice { DeviceState qdev; + MemoryRegion *io[32]; uint32_t isairq[2]; - int nirqs; uint16_t ioports[32]; + int nirqs; int nioports; + int nio; }; typedef int (*isa_qdev_initfn)(ISADevice *dev); @@ -29,6 +31,7 @@ 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); |