void pci_io_write16(struct pci_io_handle *handle, uint32_t reg, uint16_t data);
void pci_io_write8(struct pci_io_handle *handle, uint32_t reg, uint8_t data);
+/*
+ * Legacy memory access
+ */
+
+int pci_device_map_legacy(struct pci_device *dev, pciaddr_t base,
+ pciaddr_t size, unsigned map_flags, void **addr);
+int pci_device_unmap_legacy(struct pci_device *dev, void *addr, pciaddr_t size);
+
#endif /* PCIACCESS_H */
if (pci_sys->methods->enable)
pci_sys->methods->enable(dev);
}
+
+/**
+ * Map the legacy memory space for the PCI domain containing \c dev.
+ *
+ * \param dev Device whose memory region is to be mapped.
+ * \param base Base address of the range to be mapped.
+ * \param size Size of the range to be mapped.
+ * \param map_flags Flag bits controlling how the mapping is accessed.
+ * \param addr Location to store the mapped address.
+ *
+ * \returns
+ * Zero on success or an \c errno value on failure.
+ */
+int
+pci_device_map_legacy(struct pci_device *dev, pciaddr_t base, pciaddr_t size,
+ unsigned map_flags, void **addr)
+{
+ if (base > 0x100000 || base + size > 0x100000)
+ return EINVAL;
+
+ if (!pci_sys->methods->map_legacy)
+ return ENOSYS;
+
+ return pci_sys->methods->map_legacy(dev, base, size, map_flags, addr);
+}
+
+/**
+ * Unmap the legacy memory space for the PCI domain containing \c dev.
+ *
+ * \param dev Device whose memory region is to be unmapped.
+ * \param addr Location of the mapped address.
+ * \param size Size of the range to be unmapped.
+ *
+ * \returns
+ * Zero on success or an \c errno value on failure.
+ */
+int
+pci_device_unmap_legacy(struct pci_device *dev, void *addr, pciaddr_t size)
+{
+ if (!pci_sys->methods->unmap_legacy)
+ return ENOSYS;
+
+ return pci_sys->methods->unmap_legacy(dev, addr, size);
+}
void (*write16)( struct pci_io_handle *handle, uint32_t reg,
uint16_t data );
void (*write8)( struct pci_io_handle *handle, uint32_t reg, uint8_t data );
+
+ int (*map_legacy)(struct pci_device *dev, pciaddr_t base, pciaddr_t size,
+ unsigned map_flags, void **addr);
+ int (*unmap_legacy)(struct pci_device *dev, void *addr, pciaddr_t size);
};
struct pci_device_mapping {