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kernel/linux-imx6_3.14.28/arch/mn10300/unit-asb2305/pci-asb2305.h 2.06 KB
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  /* ASB2305 Arch-specific PCI declarations
   *
   * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   * Written by David Howells (dhowells@redhat.com)
   * Derived from: arch/i386/kernel/pci-i386.h: (c) 1999 Martin Mares <mj@ucw.cz>
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public Licence
   * as published by the Free Software Foundation; either version
   * 2 of the Licence, or (at your option) any later version.
   */
  #ifndef _PCI_ASB2305_H
  #define _PCI_ASB2305_H
  
  #undef DEBUG
  
  #ifdef DEBUG
  #define DBG(x...) printk(x)
  #else
  #define DBG(x...)
  #endif
  
  #define PCI_PROBE_BIOS 1
  #define PCI_PROBE_CONF1 2
  #define PCI_PROBE_CONF2 4
  #define PCI_NO_CHECKS 0x400
  #define PCI_ASSIGN_ROMS 0x1000
  #define PCI_BIOS_IRQ_SCAN 0x2000
  
  extern unsigned int pci_probe;
  
  /* pci-asb2305.c */
  
  extern void pcibios_resource_survey(void);
  
  /* pci.c */
  
  extern struct pci_ops *pci_root_ops;
  
  extern struct irq_routing_table *pcibios_get_irq_routing_table(void);
  extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
  
  /* pci-irq.c */
  
  struct irq_info {
  	u8 bus, devfn;			/* Bus, device and function */
  	struct {
  		u8 link;		/* IRQ line ID, chipset dependent,
  					 * 0=not routed */
  		u16 bitmap;		/* Available IRQs */
  	} __attribute__((packed)) irq[4];
  	u8 slot;			/* Slot number, 0=onboard */
  	u8 rfu;
  } __attribute__((packed));
  
  struct irq_routing_table {
  	u32 signature;			/* PIRQ_SIGNATURE should be here */
  	u16 version;			/* PIRQ_VERSION */
  	u16 size;			/* Table size in bytes */
  	u8 rtr_bus, rtr_devfn;		/* Where the interrupt router lies */
  	u16 exclusive_irqs;		/* IRQs devoted exclusively to PCI usage */
  	u16 rtr_vendor, rtr_device;	/* Vendor and device ID of interrupt router */
  	u32 miniport_data;		/* Crap */
  	u8 rfu[11];
  	u8 checksum;			/* Modulo 256 checksum must give zero */
  	struct irq_info slots[0];
  } __attribute__((packed));
  
  extern unsigned int pcibios_irq_mask;
  
  extern void pcibios_irq_init(void);
  extern void pcibios_fixup_irqs(void);
  extern void pcibios_enable_irq(struct pci_dev *dev);
  
  #endif /* PCI_ASB2305_H */