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/* Functions internal to the PCI core code */

extern int pci_hotplug (struct device *dev, char **envp, int num_envp,
                         char *buffer, int buffer_size);
extern void pci_create_sysfs_dev_files(struct pci_dev *pdev);
extern int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
                                  unsigned long size, unsigned long align,
                                  unsigned long min, unsigned int type_mask,
                                  void (*alignf)(void *, struct resource *,
                                                 unsigned long, unsigned long),
                                  void *alignf_data);
/* PCI /proc functions */
#ifdef CONFIG_PROC_FS
extern int pci_proc_attach_device(struct pci_dev *dev);
extern int pci_proc_detach_device(struct pci_dev *dev);
extern int pci_proc_attach_bus(struct pci_bus *bus);
extern int pci_proc_detach_bus(struct pci_bus *bus);
#else
static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
static inline int pci_proc_attach_bus(struct pci_bus *bus) { return 0; }
static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
#endif

/* Functions for PCI Hotplug drivers to use */
extern struct pci_bus * pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr);
extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
extern int pci_remove_device_safe(struct pci_dev *dev);
extern unsigned char pci_max_busnr(void);
extern unsigned char pci_bus_max_busnr(struct pci_bus *bus);
extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);

struct pci_dev_wrapped {
        struct pci_dev  *dev;
        void            *data;
};

struct pci_bus_wrapped {
        struct pci_bus  *bus;
        void            *data;
};

struct pci_visit {
        int (* pre_visit_pci_bus)       (struct pci_bus_wrapped *,
                                         struct pci_dev_wrapped *);
        int (* post_visit_pci_bus)      (struct pci_bus_wrapped *,
                                         struct pci_dev_wrapped *);

        int (* pre_visit_pci_dev)       (struct pci_dev_wrapped *,
                                         struct pci_bus_wrapped *);
        int (* visit_pci_dev)           (struct pci_dev_wrapped *,
                                         struct pci_bus_wrapped *);
        int (* post_visit_pci_dev)      (struct pci_dev_wrapped *,
                                         struct pci_bus_wrapped *);
};

extern int pci_visit_dev(struct pci_visit *fn,
                         struct pci_dev_wrapped *wrapped_dev,
                         struct pci_bus_wrapped *wrapped_parent);

/* Lock for read/write access to pci device and bus lists */
extern spinlock_t pci_bus_lock;