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/*
* Based on 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_PCIBIOS_H
#define __ASM_PCIBIOS_H
#include <linux/ioport.h>
struct pci_sys_data;
struct pci_ops;
struct pci_bus;
struct device;
struct hw_pci {
#ifdef CONFIG_PCI_DOMAINS
int domain;
#endif
struct pci_ops *ops;
int nr_controllers;
void **private_data;
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);
resource_size_t(*align_resource) (struct pci_dev *dev,
const struct resource *res,
resource_size_t start,
resource_size_t size,
resource_size_t align);
void (*add_bus) (struct pci_bus *bus);
void (*remove_bus) (struct pci_bus *bus);
};
/*
* 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);
/* Resource alignement requirements */
resource_size_t(*align_resource) (struct pci_dev *dev,
const struct resource *res,
resource_size_t start,
resource_size_t size,
resource_size_t align);
void (*add_bus) (struct pci_bus *bus);
void (*remove_bus) (struct pci_bus *bus);
void *private_data; /* platform controller private data */
};
/*
* Call this with your hw_pci struct to initialise the PCI system.
*/
void pci_common_init_dev(struct device *, struct hw_pci *);
/*
* Compatibility wrapper for older platforms that do not care about
* passing the parent device.
*/
static inline void pci_common_init(struct hw_pci *hw)
{
pci_common_init_dev(NULL, hw);
}
/*
* 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
#endif /* __ASM_PCIBIOS_H */