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 /* Firmware callbacks */ 15 extern int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state); 16 extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state); 17 18 extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); 19 extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val); 20 extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val); 21 extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val); 22 extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val); 23 extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val); 24 25 /* PCI /proc functions */ 26 #ifdef CONFIG_PROC_FS 27 extern int pci_proc_attach_device(struct pci_dev *dev); 28 extern int pci_proc_detach_device(struct pci_dev *dev); 29 extern int pci_proc_attach_bus(struct pci_bus *bus); 30 extern int pci_proc_detach_bus(struct pci_bus *bus); 31 #else 32 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; } 33 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; } 34 static inline int pci_proc_attach_bus(struct pci_bus *bus) { return 0; } 35 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; } 36 #endif 37 38 /* Functions for PCI Hotplug drivers to use */ 39 extern unsigned int pci_do_scan_bus(struct pci_bus *bus); 40 extern int pci_remove_device_safe(struct pci_dev *dev); 41 extern unsigned char pci_max_busnr(void); 42 extern unsigned char pci_bus_max_busnr(struct pci_bus *bus); 43 extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap); 44 45 extern void pci_remove_legacy_files(struct pci_bus *bus); 46 47 /* Lock for read/write access to pci device and bus lists */ 48 extern spinlock_t pci_bus_lock; 49 50 #ifdef CONFIG_X86_IO_APIC 51 extern int pci_msi_quirk; 52 #else 53 #define pci_msi_quirk 0 54 #endif 55 56 #ifdef CONFIG_PCI_MSI 57 void disable_msi_mode(struct pci_dev *dev, int pos, int type); 58 #else 59 static inline void disable_msi_mode(struct pci_dev *dev, int pos, int type) { } 60 #endif 61 62 extern int pcie_mch_quirk; 63 extern struct device_attribute pci_dev_attrs[]; 64 extern struct class_device_attribute class_device_attr_cpuaffinity; 65 66 /** 67 * pci_match_one_device - Tell if a PCI device structure has a matching 68 * PCI device id structure 69 * @id: single PCI device id structure to match 70 * @dev: the PCI device structure to match against 71 * 72 * Returns the matching pci_device_id structure or %NULL if there is no match. 73 */ 74 static inline const struct pci_device_id * 75 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev) 76 { 77 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) && 78 (id->device == PCI_ANY_ID || id->device == dev->device) && 79 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) && 80 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) && 81 !((id->class ^ dev->class) & id->class_mask)) 82 return id; 83 return NULL; 84 } 85 86