3963e1398e
TYPE_PIIX3_PCI_DEVICE resides there as already, so add the remaining ones, too. Signed-off-by: Bernhard Beschow <shentey@gmail.com> Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220603185045.143789-2-shentey@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
133 lines
4.1 KiB
C
133 lines
4.1 KiB
C
#ifndef HW_ISA_H
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#define HW_ISA_H
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/* ISA bus */
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#include "exec/memory.h"
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#include "exec/ioport.h"
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#include "hw/qdev-core.h"
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#include "qom/object.h"
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#define ISA_NUM_IRQS 16
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#define TYPE_ISA_DEVICE "isa-device"
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OBJECT_DECLARE_TYPE(ISADevice, ISADeviceClass, ISA_DEVICE)
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#define TYPE_ISA_BUS "ISA"
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OBJECT_DECLARE_SIMPLE_TYPE(ISABus, ISA_BUS)
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#define TYPE_ISADMA "isa-dma"
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typedef struct IsaDmaClass IsaDmaClass;
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DECLARE_CLASS_CHECKERS(IsaDmaClass, ISADMA,
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TYPE_ISADMA)
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#define ISADMA(obj) \
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INTERFACE_CHECK(IsaDma, (obj), TYPE_ISADMA)
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typedef enum {
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ISADMA_TRANSFER_VERIFY,
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ISADMA_TRANSFER_READ,
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ISADMA_TRANSFER_WRITE,
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ISADMA_TRANSFER_ILLEGAL,
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} IsaDmaTransferMode;
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typedef int (*IsaDmaTransferHandler)(void *opaque, int nchan, int pos,
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int size);
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struct IsaDmaClass {
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InterfaceClass parent;
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bool (*has_autoinitialization)(IsaDma *obj, int nchan);
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int (*read_memory)(IsaDma *obj, int nchan, void *buf, int pos, int len);
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int (*write_memory)(IsaDma *obj, int nchan, void *buf, int pos, int len);
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void (*hold_DREQ)(IsaDma *obj, int nchan);
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void (*release_DREQ)(IsaDma *obj, int nchan);
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void (*schedule)(IsaDma *obj);
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void (*register_channel)(IsaDma *obj, int nchan,
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IsaDmaTransferHandler transfer_handler,
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void *opaque);
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};
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struct ISADeviceClass {
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DeviceClass parent_class;
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};
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struct ISABus {
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/*< private >*/
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BusState parent_obj;
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/*< public >*/
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MemoryRegion *address_space;
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MemoryRegion *address_space_io;
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qemu_irq *irqs;
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IsaDma *dma[2];
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};
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struct ISADevice {
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/*< private >*/
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DeviceState parent_obj;
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/*< public >*/
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int ioport_id;
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};
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ISABus *isa_bus_new(DeviceState *dev, MemoryRegion *address_space,
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MemoryRegion *address_space_io, Error **errp);
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void isa_bus_irqs(ISABus *bus, qemu_irq *irqs);
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qemu_irq isa_get_irq(ISADevice *dev, unsigned isairq);
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void isa_connect_gpio_out(ISADevice *isadev, int gpioirq, unsigned isairq);
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void isa_bus_dma(ISABus *bus, IsaDma *dma8, IsaDma *dma16);
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IsaDma *isa_get_dma(ISABus *bus, int nchan);
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MemoryRegion *isa_address_space(ISADevice *dev);
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MemoryRegion *isa_address_space_io(ISADevice *dev);
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ISADevice *isa_new(const char *name);
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ISADevice *isa_try_new(const char *name);
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bool isa_realize_and_unref(ISADevice *dev, ISABus *bus, Error **errp);
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ISADevice *isa_create_simple(ISABus *bus, const char *name);
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ISADevice *isa_vga_init(ISABus *bus);
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void isa_build_aml(ISABus *bus, Aml *scope);
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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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* @piolist: the PortioList associated with the io ports
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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 portio callbacks.
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* @name: passed into memory_region_init_io.
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*
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* Returns: 0 on success, negative error code otherwise (e.g. if the
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* ISA bus is not available)
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*/
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int isa_register_portio_list(ISADevice *dev,
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PortioList *piolist,
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uint16_t start,
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const MemoryRegionPortio *portio,
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void *opaque, const char *name);
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static inline ISABus *isa_bus_from_device(ISADevice *d)
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{
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return ISA_BUS(qdev_get_parent_bus(DEVICE(d)));
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}
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#endif
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