pci.h
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- /*
- * pci.h
- *
- * PCI defines and function prototypes
- * Copyright 1994, Drew Eckhardt
- * Copyright 1997--1999 Martin Mares <mj@ucw.cz>
- *
- * For more information, please consult the following manuals (look at
- * http://www.pcisig.com/ for how to get them):
- *
- * PCI BIOS Specification
- * PCI Local Bus Specification
- * PCI to PCI Bridge Specification
- * PCI System Design Guide
- */
- #ifndef LINUX_PCI_H
- #define LINUX_PCI_H
- #include <linux/mod_devicetable.h>
- /* Include the pci register defines */
- #include <linux/pci_regs.h>
- /* Include the ID list */
- #include <linux/pci_ids.h>
- /*
- * The PCI interface treats multi-function devices as independent
- * devices. The slot/function address of each device is encoded
- * in a single byte as follows:
- *
- * 7:3 = slot
- * 2:0 = function
- */
- #define PCI_DEVFN(slot,func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
- #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
- #define PCI_FUNC(devfn) ((devfn) & 0x07)
- /* Ioctls for /proc/bus/pci/X/Y nodes. */
- #define PCIIOC_BASE ('P' << 24 | 'C' << 16 | 'I' << 8)
- #define PCIIOC_CONTROLLER (PCIIOC_BASE | 0x00) /* Get controller for PCI device. */
- #define PCIIOC_MMAP_IS_IO (PCIIOC_BASE | 0x01) /* Set mmap state to I/O space. */
- #define PCIIOC_MMAP_IS_MEM (PCIIOC_BASE | 0x02) /* Set mmap state to MEM space. */
- #define PCIIOC_WRITE_COMBINE (PCIIOC_BASE | 0x03) /* Enable/disable write-combining. */
- #ifdef __KERNEL__
- #include <linux/types.h>
- #include <linux/config.h>
- #include <linux/ioport.h>
- #include <linux/list.h>
- #include <linux/errno.h>
- #include <linux/device.h>
- /* File state for mmap()s on /proc/bus/pci/X/Y */
- enum pci_mmap_state {
- pci_mmap_io,
- pci_mmap_mem
- };
- /* This defines the direction arg to the DMA mapping routines. */
- #define PCI_DMA_BIDIRECTIONAL 0
- #define PCI_DMA_TODEVICE 1
- #define PCI_DMA_FROMDEVICE 2
- #define PCI_DMA_NONE 3
- #define DEVICE_COUNT_COMPATIBLE 4
- #define DEVICE_COUNT_RESOURCE 12
- typedef int __bitwise pci_power_t;
- #define PCI_D0 ((pci_power_t __force) 0)
- #define PCI_D1 ((pci_power_t __force) 1)
- #define PCI_D2 ((pci_power_t __force) 2)
- #define PCI_D3hot ((pci_power_t __force) 3)
- #define PCI_D3cold ((pci_power_t __force) 4)
- #define PCI_UNKNOWN ((pci_power_t __force) 5)
- #define PCI_POWER_ERROR ((pci_power_t __force) -1)
- /*
- * The pci_dev structure is used to describe PCI devices.
- */
- struct pci_dev {
- struct list_head global_list; /* node in list of all PCI devices */
- struct list_head bus_list; /* node in per-bus list */
- struct pci_bus *bus; /* bus this device is on */
- struct pci_bus *subordinate; /* bus this device bridges to */
- void *sysdata; /* hook for sys-specific extension */
- struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */
- unsigned int devfn; /* encoded device & function index */
- unsigned short vendor;
- unsigned short device;
- unsigned short subsystem_vendor;
- unsigned short subsystem_device;
- unsigned int class; /* 3 bytes: (base,sub,prog-if) */
- u8 hdr_type; /* PCI header type (`multi' flag masked out) */
- u8 rom_base_reg; /* which config register controls the ROM */
- struct pci_driver *driver; /* which driver has allocated this device */
- u64 dma_mask; /* Mask of the bits of bus address this
- device implements. Normally this is
- 0xffffffff. You only need to change
- this if your device has broken DMA
- or supports 64-bit transfers. */
- pci_power_t current_state; /* Current operating state. In ACPI-speak,
- this is D0-D3, D0 being fully functional,
- and D3 being off. */
- struct device dev; /* Generic device interface */
- /* device is compatible with these IDs */
- unsigned short vendor_compatible[DEVICE_COUNT_COMPATIBLE];
- unsigned short device_compatible[DEVICE_COUNT_COMPATIBLE];
- int cfg_size; /* Size of configuration space */
- /*
- * Instead of touching interrupt line and base address registers
- * directly, use the values stored here. They might be different!
- */
- unsigned int irq;
- struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */
- /* These fields are used by common fixups */
- unsigned int transparent:1; /* Transparent PCI bridge */
- unsigned int multifunction:1;/* Part of multi-function device */
- /* keep track of device state */
- unsigned int is_enabled:1; /* pci_enable_device has been called */
- unsigned int is_busmaster:1; /* device is busmaster */
- unsigned int no_msi:1; /* device may not use msi */
- u32 saved_config_space[16]; /* config space saved at suspend time */
- struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */
- int rom_attr_enabled; /* has display of the rom attribute been enabled? */
- struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */
- };
- #define pci_dev_g(n) list_entry(n, struct pci_dev, global_list)
- #define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list)
- #define to_pci_dev(n) container_of(n, struct pci_dev, dev)
- #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL)
- /*
- * For PCI devices, the region numbers are assigned this way:
- *
- * 0-5 standard PCI regions
- * 6 expansion ROM
- * 7-10 bridges: address space assigned to buses behind the bridge
- */
- #define PCI_ROM_RESOURCE 6
- #define PCI_BRIDGE_RESOURCES 7
- #define PCI_NUM_RESOURCES 11
- #ifndef PCI_BUS_NUM_RESOURCES
- #define PCI_BUS_NUM_RESOURCES 8
- #endif
- #define PCI_REGION_FLAG_MASK 0x0fU /* These bits of resource flags tell us the PCI region flags */
- struct pci_bus {
- struct list_head node; /* node in list of buses */
- struct pci_bus *parent; /* parent bus this bridge is on */
- struct list_head children; /* list of child buses */
- struct list_head devices; /* list of devices on this bus */
- struct pci_dev *self; /* bridge device as seen by parent */
- struct resource *resource[PCI_BUS_NUM_RESOURCES];
- /* address space routed to this bus */
- struct pci_ops *ops; /* configuration access functions */
- void *sysdata; /* hook for sys-specific extension */
- struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */
- unsigned char number; /* bus number */
- unsigned char primary; /* number of primary bridge */
- unsigned char secondary; /* number of secondary bridge */
- unsigned char subordinate; /* max number of subordinate buses */
- char name[48];
- unsigned short bridge_ctl; /* manage NO_ISA/FBB/et al behaviors */
- unsigned short pad2;
- struct device *bridge;
- struct class_device class_dev;
- struct bin_attribute *legacy_io; /* legacy I/O for this bus */
- struct bin_attribute *legacy_mem; /* legacy mem */
- };
- #define pci_bus_b(n) list_entry(n, struct pci_bus, node)
- #define to_pci_bus(n) container_of(n, struct pci_bus, class_dev)
- /*
- * Error values that may be returned by PCI functions.
- */
- #define PCIBIOS_SUCCESSFUL 0x00
- #define PCIBIOS_FUNC_NOT_SUPPORTED 0x81
- #define PCIBIOS_BAD_VENDOR_ID 0x83
- #define PCIBIOS_DEVICE_NOT_FOUND 0x86
- #define PCIBIOS_BAD_REGISTER_NUMBER 0x87
- #define PCIBIOS_SET_FAILED 0x88
- #define PCIBIOS_BUFFER_TOO_SMALL 0x89
- /* Low-level architecture-dependent routines */
- struct pci_ops {
- int (*read)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val);
- int (*write)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val);
- };
- struct pci_raw_ops {
- int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn,
- int reg, int len, u32 *val);
- int (*write)(unsigned int domain, unsigned int bus, unsigned int devfn,
- int reg, int len, u32 val);
- };
- extern struct pci_raw_ops *raw_pci_ops;
- struct pci_bus_region {
- unsigned long start;
- unsigned long end;
- };
- struct pci_dynids {
- spinlock_t lock; /* protects list, index */
- struct list_head list; /* for IDs added at runtime */
- unsigned int use_driver_data:1; /* pci_driver->driver_data is used */
- };
- struct module;
- struct pci_driver {
- struct list_head node;
- char *name;
- struct module *owner;
- const struct pci_device_id *id_table; /* must be non-NULL for probe to be called */
- int (*probe) (struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */
- void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */
- int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */
- int (*resume) (struct pci_dev *dev); /* Device woken up */
- int (*enable_wake) (struct pci_dev *dev, pci_power_t state, int enable); /* Enable wake event */
- void (*shutdown) (struct pci_dev *dev);
- struct device_driver driver;
- struct pci_dynids dynids;
- };
- #define to_pci_driver(drv) container_of(drv,struct pci_driver, driver)
- /**
- * PCI_DEVICE - macro used to describe a specific pci device
- * @vend: the 16 bit PCI Vendor ID
- * @dev: the 16 bit PCI Device ID
- *
- * This macro is used to create a struct pci_device_id that matches a
- * specific device. The subvendor and subdevice fields will be set to
- * PCI_ANY_ID.
- */
- #define PCI_DEVICE(vend,dev)
- .vendor = (vend), .device = (dev),
- .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
- /**
- * PCI_DEVICE_CLASS - macro used to describe a specific pci device class
- * @dev_class: the class, subclass, prog-if triple for this device
- * @dev_class_mask: the class mask for this device
- *
- * This macro is used to create a struct pci_device_id that matches a
- * specific PCI class. The vendor, device, subvendor, and subdevice
- * fields will be set to PCI_ANY_ID.
- */
- #define PCI_DEVICE_CLASS(dev_class,dev_class_mask)
- .class = (dev_class), .class_mask = (dev_class_mask),
- .vendor = PCI_ANY_ID, .device = PCI_ANY_ID,
- .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
- /*
- * pci_module_init is obsolete, this stays here till we fix up all usages of it
- * in the tree.
- */
- #define pci_module_init pci_register_driver
- /* these external functions are only available when PCI support is enabled */
- #ifdef CONFIG_PCI
- extern struct bus_type pci_bus_type;
- /* Do NOT directly access these two variables, unless you are arch specific pci
- * code, or pci core code. */
- extern struct list_head pci_root_buses; /* list of all known PCI buses */
- extern struct list_head pci_devices; /* list of all devices */
- void pcibios_fixup_bus(struct pci_bus *);
- int pcibios_enable_device(struct pci_dev *, int mask);
- char *pcibios_setup (char *str);
- /* Used only when drivers/pci/setup.c is used */
- void pcibios_align_resource(void *, struct resource *,
- unsigned long, unsigned long);
- void pcibios_update_irq(struct pci_dev *, int irq);
- /* Generic PCI functions used internally */
- extern struct pci_bus *pci_find_bus(int domain, int busnr);
- void pci_bus_add_devices(struct pci_bus *bus);
- struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus, struct pci_ops *ops, void *sysdata);
- static inline struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata)
- {
- struct pci_bus *root_bus;
- root_bus = pci_scan_bus_parented(NULL, bus, ops, sysdata);
- if (root_bus)
- pci_bus_add_devices(root_bus);
- return root_bus;
- }
- struct pci_bus *pci_create_bus(struct device *parent, int bus, struct pci_ops *ops, void *sysdata);
- struct pci_bus * pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr);
- int pci_scan_slot(struct pci_bus *bus, int devfn);
- struct pci_dev * pci_scan_single_device(struct pci_bus *bus, int devfn);
- void pci_device_add(struct pci_dev *dev, struct pci_bus *bus);
- unsigned int pci_scan_child_bus(struct pci_bus *bus);
- void pci_bus_add_device(struct pci_dev *dev);
- void pci_read_bridge_bases(struct pci_bus *child);
- struct resource *pci_find_parent_resource(const struct pci_dev *dev, struct resource *res);
- int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge);
- extern struct pci_dev *pci_dev_get(struct pci_dev *dev);
- extern void pci_dev_put(struct pci_dev *dev);
- extern void pci_remove_bus(struct pci_bus *b);
- extern void pci_remove_bus_device(struct pci_dev *dev);
- void pci_setup_cardbus(struct pci_bus *bus);
- /* Generic PCI functions exported to card drivers */
- struct pci_dev *pci_find_device (unsigned int vendor, unsigned int device, const struct pci_dev *from);
- struct pci_dev *pci_find_device_reverse (unsigned int vendor, unsigned int device, const struct pci_dev *from);
- struct pci_dev *pci_find_slot (unsigned int bus, unsigned int devfn);
- int pci_find_capability (struct pci_dev *dev, int cap);
- int pci_find_ext_capability (struct pci_dev *dev, int cap);
- struct pci_bus * pci_find_next_bus(const struct pci_bus *from);
- struct pci_dev *pci_get_device (unsigned int vendor, unsigned int device, struct pci_dev *from);
- struct pci_dev *pci_get_subsys (unsigned int vendor, unsigned int device,
- unsigned int ss_vendor, unsigned int ss_device,
- struct pci_dev *from);
- struct pci_dev *pci_get_slot (struct pci_bus *bus, unsigned int devfn);
- struct pci_dev *pci_get_class (unsigned int class, struct pci_dev *from);
- int pci_dev_present(const struct pci_device_id *ids);
- int pci_bus_read_config_byte (struct pci_bus *bus, unsigned int devfn, int where, u8 *val);
- int pci_bus_read_config_word (struct pci_bus *bus, unsigned int devfn, int where, u16 *val);
- int pci_bus_read_config_dword (struct pci_bus *bus, unsigned int devfn, int where, u32 *val);
- int pci_bus_write_config_byte (struct pci_bus *bus, unsigned int devfn, int where, u8 val);
- int pci_bus_write_config_word (struct pci_bus *bus, unsigned int devfn, int where, u16 val);
- int pci_bus_write_config_dword (struct pci_bus *bus, unsigned int devfn, int where, u32 val);
- static inline int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val)
- {
- return pci_bus_read_config_byte (dev->bus, dev->devfn, where, val);
- }
- static inline int pci_read_config_word(struct pci_dev *dev, int where, u16 *val)
- {
- return pci_bus_read_config_word (dev->bus, dev->devfn, where, val);
- }
- static inline int pci_read_config_dword(struct pci_dev *dev, int where, u32 *val)
- {
- return pci_bus_read_config_dword (dev->bus, dev->devfn, where, val);
- }
- static inline int pci_write_config_byte(struct pci_dev *dev, int where, u8 val)
- {
- return pci_bus_write_config_byte (dev->bus, dev->devfn, where, val);
- }
- static inline int pci_write_config_word(struct pci_dev *dev, int where, u16 val)
- {
- return pci_bus_write_config_word (dev->bus, dev->devfn, where, val);
- }
- static inline int pci_write_config_dword(struct pci_dev *dev, int where, u32 val)
- {
- return pci_bus_write_config_dword (dev->bus, dev->devfn, where, val);
- }
- int pci_enable_device(struct pci_dev *dev);
- int pci_enable_device_bars(struct pci_dev *dev, int mask);
- void pci_disable_device(struct pci_dev *dev);
- void pci_set_master(struct pci_dev *dev);
- #define HAVE_PCI_SET_MWI
- int pci_set_mwi(struct pci_dev *dev);
- void pci_clear_mwi(struct pci_dev *dev);
- void pci_intx(struct pci_dev *dev, int enable);
- int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
- int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
- void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno);
- int pci_assign_resource(struct pci_dev *dev, int i);
- void pci_restore_bars(struct pci_dev *dev);
- /* ROM control related routines */
- void __iomem __must_check *pci_map_rom(struct pci_dev *pdev, size_t *size);
- void __iomem __must_check *pci_map_rom_copy(struct pci_dev *pdev, size_t *size);
- void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom);
- void pci_remove_rom(struct pci_dev *pdev);
- /* Power management related routines */
- int pci_save_state(struct pci_dev *dev);
- int pci_restore_state(struct pci_dev *dev);
- int pci_set_power_state(struct pci_dev *dev, pci_power_t state);
- pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);
- int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable);
- /* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */
- void pci_bus_assign_resources(struct pci_bus *bus);
- void pci_bus_size_bridges(struct pci_bus *bus);
- int pci_claim_resource(struct pci_dev *, int);
- void pci_assign_unassigned_resources(void);
- void pdev_enable_device(struct pci_dev *);
- void pdev_sort_resources(struct pci_dev *, struct resource_list *);
- void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *),
- int (*)(struct pci_dev *, u8, u8));
- #define HAVE_PCI_REQ_REGIONS 2
- int pci_request_regions(struct pci_dev *, char *);
- void pci_release_regions(struct pci_dev *);
- int pci_request_region(struct pci_dev *, int, char *);
- void pci_release_region(struct pci_dev *, int);
- /* drivers/pci/bus.c */
- int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
- unsigned long size, unsigned long align,
- unsigned long min, unsigned int type_mask,
- void (*alignf)(void *, struct resource *,
- unsigned long, unsigned long),
- void *alignf_data);
- void pci_enable_bridges(struct pci_bus *bus);
- /* New-style probing supporting hot-pluggable devices */
- int pci_register_driver(struct pci_driver *);
- void pci_unregister_driver(struct pci_driver *);
- void pci_remove_behind_bridge(struct pci_dev *);
- struct pci_driver *pci_dev_driver(const struct pci_dev *);
- const struct pci_device_id *pci_match_device(struct pci_driver *drv, struct pci_dev *dev);
- const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, struct pci_dev *dev);
- int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass);
- void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
- void *userdata);
- /* kmem_cache style wrapper around pci_alloc_consistent() */
- #include <linux/dmapool.h>
- #define pci_pool dma_pool
- #define pci_pool_create(name, pdev, size, align, allocation)
- dma_pool_create(name, &pdev->dev, size, align, allocation)
- #define pci_pool_destroy(pool) dma_pool_destroy(pool)
- #define pci_pool_alloc(pool, flags, handle) dma_pool_alloc(pool, flags, handle)
- #define pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr)
- enum pci_dma_burst_strategy {
- PCI_DMA_BURST_INFINITY, /* make bursts as large as possible,
- strategy_parameter is N/A */
- PCI_DMA_BURST_BOUNDARY, /* disconnect at every strategy_parameter
- byte boundaries */
- PCI_DMA_BURST_MULTIPLE, /* disconnect at some multiple of
- strategy_parameter byte boundaries */
- };
- #if defined(CONFIG_ISA) || defined(CONFIG_EISA)
- extern struct pci_dev *isa_bridge;
- #endif
- struct msix_entry {
- u16 vector; /* kernel uses to write allocated vector */
- u16 entry; /* driver uses to specify entry, OS writes */
- };
- #ifndef CONFIG_PCI_MSI
- static inline void pci_scan_msi_device(struct pci_dev *dev) {}
- static inline int pci_enable_msi(struct pci_dev *dev) {return -1;}
- static inline void pci_disable_msi(struct pci_dev *dev) {}
- static inline int pci_enable_msix(struct pci_dev* dev,
- struct msix_entry *entries, int nvec) {return -1;}
- static inline void pci_disable_msix(struct pci_dev *dev) {}
- static inline void msi_remove_pci_irq_vectors(struct pci_dev *dev) {}
- #else
- extern void pci_scan_msi_device(struct pci_dev *dev);
- extern int pci_enable_msi(struct pci_dev *dev);
- extern void pci_disable_msi(struct pci_dev *dev);
- extern int pci_enable_msix(struct pci_dev* dev,
- struct msix_entry *entries, int nvec);
- extern void pci_disable_msix(struct pci_dev *dev);
- extern void msi_remove_pci_irq_vectors(struct pci_dev *dev);
- #endif
- /*
- * PCI domain support. Sometimes called PCI segment (eg by ACPI),
- * a PCI domain is defined to be a set of PCI busses which share
- * configuration space.
- */
- #ifndef CONFIG_PCI_DOMAINS
- static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
- static inline int pci_proc_domain(struct pci_bus *bus)
- {
- return 0;
- }
- #endif
- #else /* CONFIG_PCI is not enabled */
- /*
- * If the system does not have PCI, clearly these return errors. Define
- * these as simple inline functions to avoid hair in drivers.
- */
- #define _PCI_NOP(o,s,t)
- static inline int pci_##o##_config_##s (struct pci_dev *dev, int where, t val)
- { return PCIBIOS_FUNC_NOT_SUPPORTED; }
- #define _PCI_NOP_ALL(o,x) _PCI_NOP(o,byte,u8 x)
- _PCI_NOP(o,word,u16 x)
- _PCI_NOP(o,dword,u32 x)
- _PCI_NOP_ALL(read, *)
- _PCI_NOP_ALL(write,)
- static inline struct pci_dev *pci_find_device(unsigned int vendor, unsigned int device, const struct pci_dev *from)
- { return NULL; }
- static inline struct pci_dev *pci_find_slot(unsigned int bus, unsigned int devfn)
- { return NULL; }
- static inline struct pci_dev *pci_get_device (unsigned int vendor, unsigned int device, struct pci_dev *from)
- { return NULL; }
- static inline struct pci_dev *pci_get_subsys (unsigned int vendor, unsigned int device,
- unsigned int ss_vendor, unsigned int ss_device, struct pci_dev *from)
- { return NULL; }
- static inline struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from)
- { return NULL; }
- #define pci_dev_present(ids) (0)
- #define pci_dev_put(dev) do { } while (0)
- static inline void pci_set_master(struct pci_dev *dev) { }
- static inline int pci_enable_device(struct pci_dev *dev) { return -EIO; }
- static inline void pci_disable_device(struct pci_dev *dev) { }
- static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask) { return -EIO; }
- static inline int pci_assign_resource(struct pci_dev *dev, int i) { return -EBUSY;}
- static inline int pci_register_driver(struct pci_driver *drv) { return 0;}
- static inline void pci_unregister_driver(struct pci_driver *drv) { }
- static inline int pci_find_capability (struct pci_dev *dev, int cap) {return 0; }
- static inline int pci_find_ext_capability (struct pci_dev *dev, int cap) {return 0; }
- static inline const struct pci_device_id *pci_match_device(const struct pci_device_id *ids, const struct pci_dev *dev) { return NULL; }
- /* Power management related routines */
- static inline int pci_save_state(struct pci_dev *dev) { return 0; }
- static inline int pci_restore_state(struct pci_dev *dev) { return 0; }
- static inline int pci_set_power_state(struct pci_dev *dev, pci_power_t state) { return 0; }
- static inline pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) { return PCI_D0; }
- static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable) { return 0; }
- #define isa_bridge ((struct pci_dev *)NULL)
- #define pci_dma_burst_advice(pdev, strat, strategy_parameter) do { } while (0)
- #endif /* CONFIG_PCI */
- /* Include architecture-dependent settings and functions */
- #include <asm/pci.h>
- /* these helpers provide future and backwards compatibility
- * for accessing popular PCI BAR info */
- #define pci_resource_start(dev,bar) ((dev)->resource[(bar)].start)
- #define pci_resource_end(dev,bar) ((dev)->resource[(bar)].end)
- #define pci_resource_flags(dev,bar) ((dev)->resource[(bar)].flags)
- #define pci_resource_len(dev,bar)
- ((pci_resource_start((dev),(bar)) == 0 &&
- pci_resource_end((dev),(bar)) ==
- pci_resource_start((dev),(bar))) ? 0 :
-
- (pci_resource_end((dev),(bar)) -
- pci_resource_start((dev),(bar)) + 1))
- /* Similar to the helpers above, these manipulate per-pci_dev
- * driver-specific data. They are really just a wrapper around
- * the generic device structure functions of these calls.
- */
- static inline void *pci_get_drvdata (struct pci_dev *pdev)
- {
- return dev_get_drvdata(&pdev->dev);
- }
- static inline void pci_set_drvdata (struct pci_dev *pdev, void *data)
- {
- dev_set_drvdata(&pdev->dev, data);
- }
- /* If you want to know what to call your pci_dev, ask this function.
- * Again, it's a wrapper around the generic device.
- */
- static inline char *pci_name(struct pci_dev *pdev)
- {
- return pdev->dev.bus_id;
- }
- /* Some archs don't want to expose struct resource to userland as-is
- * in sysfs and /proc
- */
- #ifndef HAVE_ARCH_PCI_RESOURCE_TO_USER
- static inline void pci_resource_to_user(const struct pci_dev *dev, int bar,
- const struct resource *rsrc, u64 *start, u64 *end)
- {
- *start = rsrc->start;
- *end = rsrc->end;
- }
- #endif /* HAVE_ARCH_PCI_RESOURCE_TO_USER */
- /*
- * The world is not perfect and supplies us with broken PCI devices.
- * For at least a part of these bugs we need a work-around, so both
- * generic (drivers/pci/quirks.c) and per-architecture code can define
- * fixup hooks to be called for particular buggy devices.
- */
- struct pci_fixup {
- u16 vendor, device; /* You can use PCI_ANY_ID here of course */
- void (*hook)(struct pci_dev *dev);
- };
- enum pci_fixup_pass {
- pci_fixup_early, /* Before probing BARs */
- pci_fixup_header, /* After reading configuration header */
- pci_fixup_final, /* Final phase of device fixups */
- pci_fixup_enable, /* pci_enable_device() time */
- };
- /* Anonymous variables would be nice... */
- #define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook)
- static const struct pci_fixup __pci_fixup_##name __attribute_used__
- __attribute__((__section__(#section))) = { vendor, device, hook };
- #define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook)
- DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early,
- vendor##device##hook, vendor, device, hook)
- #define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)
- DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header,
- vendor##device##hook, vendor, device, hook)
- #define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)
- DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final,
- vendor##device##hook, vendor, device, hook)
- #define DECLARE_PCI_FIXUP_ENABLE(vendor, device, hook)
- DECLARE_PCI_FIXUP_SECTION(.pci_fixup_enable,
- vendor##device##hook, vendor, device, hook)
- void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
- extern int pci_pci_problems;
- #define PCIPCI_FAIL 1
- #define PCIPCI_TRITON 2
- #define PCIPCI_NATOMA 4
- #define PCIPCI_VIAETBF 8
- #define PCIPCI_VSFX 16
- #define PCIPCI_ALIMAGIK 32
- #endif /* __KERNEL__ */
- #endif /* LINUX_PCI_H */