/arch/i386/pci/pci.h

https://bitbucket.org/evzijst/gittest · C Header · 74 lines · 50 code · 16 blank · 8 comment · 0 complexity · 52423c2261e20e7954a025d0cbd0916c MD5 · raw file 

    

  1. /*
    2. 

  2.  *	Low-Level PCI Access for i386 machines.
    3. 

  3.  *
    4. 

  4.  *	(c) 1999 Martin Mares <mj@ucw.cz>
    5. 

  5.  */
    6. 

  6. 

  7. #undef DEBUG
    8. 

  8. 

  9. #ifdef DEBUG
    10. 

  10. #define DBG(x...) printk(x)
    11. 

  11. #else
    12. 

  12. #define DBG(x...)
    13. 

  13. #endif
    14. 

  14. 

  15. #define PCI_PROBE_BIOS		0x0001
    16. 

  16. #define PCI_PROBE_CONF1		0x0002
    17. 

  17. #define PCI_PROBE_CONF2		0x0004
    18. 

  18. #define PCI_PROBE_MMCONF	0x0008
    19. 

  19. #define PCI_PROBE_MASK		0x000f
    20. 

  20. 

  21. #define PCI_NO_SORT		0x0100
    22. 

  22. #define PCI_BIOS_SORT		0x0200
    23. 

  23. #define PCI_NO_CHECKS		0x0400
    24. 

  24. #define PCI_USE_PIRQ_MASK	0x0800
    25. 

  25. #define PCI_ASSIGN_ROMS		0x1000
    26. 

  26. #define PCI_BIOS_IRQ_SCAN	0x2000
    27. 

  27. #define PCI_ASSIGN_ALL_BUSSES	0x4000
    28. 

  28. 

  29. extern unsigned int pci_probe;
    30. 

  30. 

  31. /* pci-i386.c */
    32. 

  32. 

  33. extern unsigned int pcibios_max_latency;
    34. 

  34. 

  35. void pcibios_resource_survey(void);
    36. 

  36. int pcibios_enable_resources(struct pci_dev *, int);
    37. 

  37. 

  38. /* pci-pc.c */
    39. 

  39. 

  40. extern int pcibios_last_bus;
    41. 

  41. extern struct pci_bus *pci_root_bus;
    42. 

  42. extern struct pci_ops pci_root_ops;
    43. 

  43. 

  44. /* pci-irq.c */
    45. 

  45. 

  46. struct irq_info {
    47. 

  47. 	u8 bus, devfn;			/* Bus, device and function */
    48. 

  48. 	struct {
    49. 

  49. 		u8 link;		/* IRQ line ID, chipset dependent, 0=not routed */
    50. 

  50. 		u16 bitmap;		/* Available IRQs */
    51. 

  51. 	} __attribute__((packed)) irq[4];
    52. 

  52. 	u8 slot;			/* Slot number, 0=onboard */
    53. 

  53. 	u8 rfu;
    54. 

  54. } __attribute__((packed));
    55. 

  55. 

  56. struct irq_routing_table {
    57. 

  57. 	u32 signature;			/* PIRQ_SIGNATURE should be here */
    58. 

  58. 	u16 version;			/* PIRQ_VERSION */
    59. 

  59. 	u16 size;			/* Table size in bytes */
    60. 

  60. 	u8 rtr_bus, rtr_devfn;		/* Where the interrupt router lies */
    61. 

  61. 	u16 exclusive_irqs;		/* IRQs devoted exclusively to PCI usage */
    62. 

  62. 	u16 rtr_vendor, rtr_device;	/* Vendor and device ID of interrupt router */
    63. 

  63. 	u32 miniport_data;		/* Crap */
    64. 

  64. 	u8 rfu[11];
    65. 

  65. 	u8 checksum;			/* Modulo 256 checksum must give zero */
    66. 

  66. 	struct irq_info slots[0];
    67. 

  67. } __attribute__((packed));
    68. 

  68. 

  69. extern unsigned int pcibios_irq_mask;
    70. 

  70. 

  71. extern int pcibios_scanned;
    72. 

  72. extern spinlock_t pci_config_lock;
    73. 

  73. 

  74. extern int (*pcibios_enable_irq)(struct pci_dev *dev);
    75.