pci.h

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/*
 *  arch/arm/include/asm/mach/pci.h
 *
 *  Copyright (C) 2000 Russell King
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef __ASM_MACH_PCI_H
#define __ASM_MACH_PCI_H

#include <linux/ioport.h>

struct pci_sys_data;
struct pci_ops;
struct pci_bus;

struct hw_pci {
#ifdef CONFIG_PCI_DOMAINS
    int     domain;
#endif
    struct pci_ops  *ops;
    int     nr_controllers;
    int     (*setup)(int nr, struct pci_sys_data *);
    struct pci_bus *(*scan)(int nr, struct pci_sys_data *);
    void        (*preinit)(void);
    void        (*postinit)(void);
    u8      (*swizzle)(struct pci_dev *dev, u8 *pin);
    int     (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
};

/*
 * Per-controller structure
 */
struct pci_sys_data {
#ifdef CONFIG_PCI_DOMAINS
    int     domain;
#endif
    struct list_head node;
    int     busnr;      /* primary bus number           */
    u64     mem_offset; /* bus->cpu memory mapping offset   */
    unsigned long   io_offset;  /* bus->cpu IO mapping offset       */
    struct pci_bus  *bus;       /* PCI bus              */
    struct list_head resources; /* root bus resources (apertures)       */
    struct resource io_res;
    char        io_res_name[12];
                    /* Bridge swizzling         */
    u8      (*swizzle)(struct pci_dev *, u8 *);
                    /* IRQ mapping              */
    int     (*map_irq)(const struct pci_dev *, u8, u8);
    void        *private_data;  /* platform controller private data */
};

/*
 * Call this with your hw_pci struct to initialise the PCI system.
 */
void pci_common_init(struct hw_pci *);

/*
 * Setup early fixed I/O mapping.
 */
#if defined(CONFIG_PCI)
extern void pci_map_io_early(unsigned long pfn);
#else
static inline void pci_map_io_early(unsigned long pfn) {}
#endif

/*
 * PCI controllers
 */
extern struct pci_ops iop3xx_ops;
extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
extern void iop3xx_pci_preinit(void);
extern void iop3xx_pci_preinit_cond(void);

extern struct pci_ops dc21285_ops;
extern int dc21285_setup(int nr, struct pci_sys_data *);
extern void dc21285_preinit(void);
extern void dc21285_postinit(void);

extern struct pci_ops via82c505_ops;
extern int via82c505_setup(int nr, struct pci_sys_data *);
extern void via82c505_init(void *sysdata);

extern struct pci_ops pci_v3_ops;
extern int pci_v3_setup(int nr, struct pci_sys_data *);
extern void pci_v3_preinit(void);
extern void pci_v3_postinit(void);

#endif /* __ASM_MACH_PCI_H */