drivers/pci/pci.h

   1 /* Functions internal to the PCI core code */
   2
   3 extern int pci_hotplug (struct device *dev, char **envp, int num_envp,
   4                          char *buffer, int buffer_size);
   5 extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
   6 extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
   7 extern void pci_cleanup_rom(struct pci_dev *dev);
   8 extern int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
   9                                   unsigned long size, unsigned long align,
  10                                   unsigned long min, unsigned int type_mask,
  11                                   void (*alignf)(void *, struct resource *,
  12                                                  unsigned long, unsigned long),
  13                                   void *alignf_data);
  14 /* PCI /proc functions */
  15 #ifdef CONFIG_PROC_FS
  16 extern int pci_proc_attach_device(struct pci_dev *dev);
  17 extern int pci_proc_detach_device(struct pci_dev *dev);
  18 extern int pci_proc_attach_bus(struct pci_bus *bus);
  19 extern int pci_proc_detach_bus(struct pci_bus *bus);
  20 #else
  21 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
  22 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
  23 static inline int pci_proc_attach_bus(struct pci_bus *bus) { return 0; }
  24 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
  25 #endif
  26
  27 /* Functions for PCI Hotplug drivers to use */
  28 extern struct pci_bus * pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr);
  29 extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
  30 extern int pci_remove_device_safe(struct pci_dev *dev);
  31 extern unsigned char pci_max_busnr(void);
  32 extern unsigned char pci_bus_max_busnr(struct pci_bus *bus);
  33 extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);
  34
  35 struct pci_dev_wrapped {
  36         struct pci_dev  *dev;
  37         void            *data;
  38 };
  39
  40 struct pci_bus_wrapped {
  41         struct pci_bus  *bus;
  42         void            *data;
  43 };
  44
  45 struct pci_visit {
  46         int (* pre_visit_pci_bus)       (struct pci_bus_wrapped *,
  47                                          struct pci_dev_wrapped *);
  48         int (* post_visit_pci_bus)      (struct pci_bus_wrapped *,
  49                                          struct pci_dev_wrapped *);
  50
  51         int (* pre_visit_pci_dev)       (struct pci_dev_wrapped *,
  52                                          struct pci_bus_wrapped *);
  53         int (* visit_pci_dev)           (struct pci_dev_wrapped *,
  54                                          struct pci_bus_wrapped *);
  55         int (* post_visit_pci_dev)      (struct pci_dev_wrapped *,
  56                                          struct pci_bus_wrapped *);
  57 };
  58
  59 extern int pci_visit_dev(struct pci_visit *fn,
  60                          struct pci_dev_wrapped *wrapped_dev,
  61                          struct pci_bus_wrapped *wrapped_parent);
  62 extern void pci_remove_legacy_files(struct pci_bus *bus);
  63
  64 /* Lock for read/write access to pci device and bus lists */
  65 extern spinlock_t pci_bus_lock;
  66
  67 #ifdef CONFIG_X86_IO_APIC
  68 extern int pci_msi_quirk;
  69 #else
  70 #define pci_msi_quirk 0
  71 #endif
  72
  73 extern int pcie_mch_quirk;
  74 extern struct device_attribute pci_dev_attrs[];
  75 extern struct class_device_attribute class_device_attr_cpuaffinity;
  76
  77 /**
  78  * pci_match_one_device - Tell if a PCI device structure has a matching
  79  *                        PCI device id structure
  80  * @id: single PCI device id structure to match
  81  * @dev: the PCI device structure to match against
  82  *
  83  * Returns the matching pci_device_id structure or %NULL if there is no match.
  84  */
  85 static inline const struct pci_device_id *
  86 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
  87 {
  88         if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
  89             (id->device == PCI_ANY_ID || id->device == dev->device) &&
  90             (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
  91             (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
  92             !((id->class ^ dev->class) & id->class_mask))
  93                 return id;
  94         return NULL;
  95 }
  96