b591721909
Re-implement the Sysbus GPIOs to use the existing TYPE_DEVICE GPIO named framework. A constant string name is chosen to avoid conflicts with existing unnamed GPIOs. This unifies GPIOs are IRQs for sysbus devices and allows removal of all Sysbus state for GPIOs. Any existing and future-added functionality for GPIOs is now also available for sysbus IRQs. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
#ifndef HW_SYSBUS_H
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#define HW_SYSBUS_H 1
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/* Devices attached directly to the main system bus. */
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#include "hw/qdev.h"
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#include "exec/memory.h"
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#define QDEV_MAX_MMIO 32
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#define QDEV_MAX_PIO 32
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#define TYPE_SYSTEM_BUS "System"
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#define SYSTEM_BUS(obj) OBJECT_CHECK(IDEBus, (obj), TYPE_IDE_BUS)
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typedef struct SysBusDevice SysBusDevice;
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#define TYPE_SYS_BUS_DEVICE "sys-bus-device"
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#define SYS_BUS_DEVICE(obj) \
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OBJECT_CHECK(SysBusDevice, (obj), TYPE_SYS_BUS_DEVICE)
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#define SYS_BUS_DEVICE_CLASS(klass) \
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OBJECT_CLASS_CHECK(SysBusDeviceClass, (klass), TYPE_SYS_BUS_DEVICE)
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#define SYS_BUS_DEVICE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(SysBusDeviceClass, (obj), TYPE_SYS_BUS_DEVICE)
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/**
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* SysBusDeviceClass:
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* @init: Callback function invoked when the #DeviceState.realized property
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* is changed to %true. Deprecated, new types inheriting directly from
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* TYPE_SYS_BUS_DEVICE should use #DeviceClass.realize instead, new leaf
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* types should consult their respective parent type.
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*
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* SysBusDeviceClass is not overriding #DeviceClass.realize, so derived
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* classes overriding it are not required to invoke its implementation.
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*/
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#define SYSBUS_DEVICE_GPIO_IRQ "sysbus-irq"
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typedef struct SysBusDeviceClass {
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/*< private >*/
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DeviceClass parent_class;
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/*< public >*/
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int (*init)(SysBusDevice *dev);
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} SysBusDeviceClass;
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struct SysBusDevice {
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/*< private >*/
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DeviceState parent_obj;
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/*< public >*/
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int num_mmio;
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struct {
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hwaddr addr;
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MemoryRegion *memory;
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} mmio[QDEV_MAX_MMIO];
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int num_pio;
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pio_addr_t pio[QDEV_MAX_PIO];
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};
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void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory);
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MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n);
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void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p);
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void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target);
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void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size);
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void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq);
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void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr);
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void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr,
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int priority);
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void sysbus_add_io(SysBusDevice *dev, hwaddr addr,
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MemoryRegion *mem);
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MemoryRegion *sysbus_address_space(SysBusDevice *dev);
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/* Legacy helper function for creating devices. */
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DeviceState *sysbus_create_varargs(const char *name,
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hwaddr addr, ...);
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DeviceState *sysbus_try_create_varargs(const char *name,
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hwaddr addr, ...);
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static inline DeviceState *sysbus_create_simple(const char *name,
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hwaddr addr,
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qemu_irq irq)
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{
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return sysbus_create_varargs(name, addr, irq, NULL);
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}
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static inline DeviceState *sysbus_try_create_simple(const char *name,
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hwaddr addr,
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qemu_irq irq)
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{
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return sysbus_try_create_varargs(name, addr, irq, NULL);
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}
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#endif /* !HW_SYSBUS_H */
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