/* * pci.h * * PCI defines and function prototypes * Copyright 1994, Drew Eckhardt * Copyright 1997--1999 Martin Mares * * 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 #include #define PCI_ANY_ID (~0) #define PCI_CLASS_NOT_DEFINED 0x0000 #define PCI_CLASS_NOT_DEFINED_VGA 0x0001 #define PCI_BASE_CLASS_STORAGE 0x01 #define PCI_CLASS_STORAGE_SCSI 0x0100 #define PCI_CLASS_STORAGE_IDE 0x0101 #define PCI_CLASS_STORAGE_FLOPPY 0x0102 #define PCI_CLASS_STORAGE_IPI 0x0103 #define PCI_CLASS_STORAGE_RAID 0x0104 #define PCI_CLASS_STORAGE_SATA 0x0106 #define PCI_CLASS_STORAGE_SATA_AHCI 0x010601 #define PCI_CLASS_STORAGE_SAS 0x0107 #define PCI_CLASS_STORAGE_OTHER 0x0180 #define PCI_BASE_CLASS_NETWORK 0x02 #define PCI_CLASS_NETWORK_ETHERNET 0x0200 #define PCI_CLASS_NETWORK_TOKEN_RING 0x0201 #define PCI_CLASS_NETWORK_FDDI 0x0202 #define PCI_CLASS_NETWORK_ATM 0x0203 #define PCI_CLASS_NETWORK_OTHER 0x0280 #define PCI_BASE_CLASS_DISPLAY 0x03 #define PCI_CLASS_DISPLAY_VGA 0x0300 #define PCI_CLASS_DISPLAY_XGA 0x0301 #define PCI_CLASS_DISPLAY_3D 0x0302 #define PCI_CLASS_DISPLAY_OTHER 0x0380 #define PCI_BASE_CLASS_MULTIMEDIA 0x04 #define PCI_CLASS_MULTIMEDIA_VIDEO 0x0400 #define PCI_CLASS_MULTIMEDIA_AUDIO 0x0401 #define PCI_CLASS_MULTIMEDIA_PHONE 0x0402 #define PCI_CLASS_MULTIMEDIA_OTHER 0x0480 #define PCI_BASE_CLASS_MEMORY 0x05 #define PCI_CLASS_MEMORY_RAM 0x0500 #define PCI_CLASS_MEMORY_FLASH 0x0501 #define PCI_CLASS_MEMORY_OTHER 0x0580 #define PCI_BASE_CLASS_BRIDGE 0x06 #define PCI_CLASS_BRIDGE_HOST 0x0600 #define PCI_CLASS_BRIDGE_ISA 0x0601 #define PCI_CLASS_BRIDGE_EISA 0x0602 #define PCI_CLASS_BRIDGE_MC 0x0603 #define PCI_CLASS_BRIDGE_PCI 0x0604 #define PCI_CLASS_BRIDGE_PCMCIA 0x0605 #define PCI_CLASS_BRIDGE_NUBUS 0x0606 #define PCI_CLASS_BRIDGE_CARDBUS 0x0607 #define PCI_CLASS_BRIDGE_RACEWAY 0x0608 #define PCI_CLASS_BRIDGE_OTHER 0x0680 #define PCI_BASE_CLASS_COMMUNICATION 0x07 #define PCI_CLASS_COMMUNICATION_SERIAL 0x0700 #define PCI_CLASS_COMMUNICATION_PARALLEL 0x0701 #define PCI_CLASS_COMMUNICATION_MULTISERIAL 0x0702 #define PCI_CLASS_COMMUNICATION_MODEM 0x0703 #define PCI_CLASS_COMMUNICATION_OTHER 0x0780 #define PCI_BASE_CLASS_SYSTEM 0x08 #define PCI_CLASS_SYSTEM_PIC 0x0800 #define PCI_CLASS_SYSTEM_PIC_IOAPIC 0x080010 #define PCI_CLASS_SYSTEM_PIC_IOXAPIC 0x080020 #define PCI_CLASS_SYSTEM_DMA 0x0801 #define PCI_CLASS_SYSTEM_TIMER 0x0802 #define PCI_CLASS_SYSTEM_RTC 0x0803 #define PCI_CLASS_SYSTEM_PCI_HOTPLUG 0x0804 #define PCI_CLASS_SYSTEM_SDHCI 0x0805 #define PCI_CLASS_SYSTEM_OTHER 0x0880 #define PCI_BASE_CLASS_INPUT 0x09 #define PCI_CLASS_INPUT_KEYBOARD 0x0900 #define PCI_CLASS_INPUT_PEN 0x0901 #define PCI_CLASS_INPUT_MOUSE 0x0902 #define PCI_CLASS_INPUT_SCANNER 0x0903 #define PCI_CLASS_INPUT_GAMEPORT 0x0904 #define PCI_CLASS_INPUT_OTHER 0x0980 #define PCI_BASE_CLASS_DOCKING 0x0a #define PCI_CLASS_DOCKING_GENERIC 0x0a00 #define PCI_CLASS_DOCKING_OTHER 0x0a80 #define PCI_BASE_CLASS_PROCESSOR 0x0b #define PCI_CLASS_PROCESSOR_386 0x0b00 #define PCI_CLASS_PROCESSOR_486 0x0b01 #define PCI_CLASS_PROCESSOR_PENTIUM 0x0b02 #define PCI_CLASS_PROCESSOR_ALPHA 0x0b10 #define PCI_CLASS_PROCESSOR_POWERPC 0x0b20 #define PCI_CLASS_PROCESSOR_MIPS 0x0b30 #define PCI_CLASS_PROCESSOR_CO 0x0b40 #define PCI_BASE_CLASS_SERIAL 0x0c #define PCI_CLASS_SERIAL_FIREWIRE 0x0c00 #define PCI_CLASS_SERIAL_FIREWIRE_OHCI 0x0c0010 #define PCI_CLASS_SERIAL_ACCESS 0x0c01 #define PCI_CLASS_SERIAL_SSA 0x0c02 #define PCI_CLASS_SERIAL_USB 0x0c03 #define PCI_CLASS_SERIAL_USB_UHCI 0x0c0300 #define PCI_CLASS_SERIAL_USB_OHCI 0x0c0310 #define PCI_CLASS_SERIAL_USB_EHCI 0x0c0320 #define PCI_CLASS_SERIAL_FIBER 0x0c04 #define PCI_CLASS_SERIAL_SMBUS 0x0c05 #define PCI_BASE_CLASS_WIRELESS 0x0d #define PCI_CLASS_WIRELESS_RF_CONTROLLER 0x0d10 #define PCI_CLASS_WIRELESS_WHCI 0x0d1010 #define PCI_BASE_CLASS_INTELLIGENT 0x0e #define PCI_CLASS_INTELLIGENT_I2O 0x0e00 #define PCI_BASE_CLASS_SATELLITE 0x0f #define PCI_CLASS_SATELLITE_TV 0x0f00 #define PCI_CLASS_SATELLITE_AUDIO 0x0f01 #define PCI_CLASS_SATELLITE_VOICE 0x0f03 #define PCI_CLASS_SATELLITE_DATA 0x0f04 #define PCI_BASE_CLASS_CRYPT 0x10 #define PCI_CLASS_CRYPT_NETWORK 0x1000 #define PCI_CLASS_CRYPT_ENTERTAINMENT 0x1001 #define PCI_CLASS_CRYPT_OTHER 0x1080 #define PCI_BASE_CLASS_SIGNAL_PROCESSING 0x11 #define PCI_CLASS_SP_DPIO 0x1100 #define PCI_CLASS_SP_OTHER 0x1180 #define PCI_CLASS_OTHERS 0xff /* * Under PCI, each device has 256 bytes of configuration address space, * of which the first 64 bytes are standardized as follows: */ #define PCI_VENDOR_ID 0x000 /* 16 bits */ #define PCI_DEVICE_ID 0x002 /* 16 bits */ #define PCI_COMMAND 0x004 /* 16 bits */ #define PCI_COMMAND_IO 0x001 /* Enable response in I/O space */ #define PCI_COMMAND_MEMORY 0x002 /* Enable response in Memory space */ #define PCI_COMMAND_MASTER 0x004 /* Enable bus mastering */ #define PCI_COMMAND_SPECIAL 0x008 /* Enable response to special cycles */ #define PCI_COMMAND_INVALIDATE 0x010 /* Use memory write and invalidate */ #define PCI_COMMAND_VGA_PALETTE 0x020 /* Enable palette snooping */ #define PCI_COMMAND_PARITY 0x040 /* Enable parity checking */ #define PCI_COMMAND_WAIT 0x080 /* Enable address/data stepping */ #define PCI_COMMAND_SERR 0x100 /* Enable SERR */ #define PCI_COMMAND_FAST_BACK 0x200 /* Enable back-to-back writes */ #define PCI_COMMAND_INTX_DISABLE 0x400 /* INTx Emulation Disable */ #define PCI_STATUS 0x006 /* 16 bits */ #define PCI_STATUS_CAP_LIST 0x010 /* Support Capability List */ #define PCI_STATUS_66MHZ 0x020 /* Support 66 Mhz PCI 2.1 bus */ #define PCI_STATUS_UDF 0x040 /* Support User Definable Features [obsolete] */ #define PCI_STATUS_FAST_BACK 0x080 /* Accept fast-back to back */ #define PCI_STATUS_PARITY 0x100 /* Detected parity error */ #define PCI_STATUS_DEVSEL_MASK 0x600 /* DEVSEL timing */ #define PCI_STATUS_DEVSEL_FAST 0x000 #define PCI_STATUS_DEVSEL_MEDIUM 0x200 #define PCI_STATUS_DEVSEL_SLOW 0x400 #define PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */ #define PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */ #define PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */ #define PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */ #define PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */ #define PCI_CLASS_REVISION 0x08 /* High 24 bits are class, low 8 revision */ #define PCI_REVISION_ID 0x08 /* Revision ID */ #define PCI_CLASS_PROG 0x09 /* Reg. Level Programming Interface */ #define PCI_CLASS_DEVICE 0x0a /* Device class */ #define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */ #define PCI_LATENCY_TIMER 0x0d /* 8 bits */ #define PCI_HEADER_TYPE 0x0e /* 8 bits */ #define PCI_HEADER_TYPE_NORMAL 0 #define PCI_HEADER_TYPE_BRIDGE 1 #define PCI_HEADER_TYPE_CARDBUS 2 #define PCI_BIST 0x0f /* 8 bits */ #define PCI_BIST_CODE_MASK 0x0f /* Return result */ #define PCI_BIST_START 0x40 /* 1 to start BIST, 2 secs or less */ #define PCI_BIST_CAPABLE 0x80 /* 1 if BIST capable */ /* * Base addresses specify locations in memory or I/O space. * Decoded size can be determined by writing a value of * 0xffffffff to the register, and reading it back. Only * 1 bits are decoded. */ #define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */ #define PCI_BASE_ADDRESS_1 0x14 /* 32 bits [htype 0,1 only] */ #define PCI_BASE_ADDRESS_2 0x18 /* 32 bits [htype 0 only] */ #define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */ #define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */ #define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */ #define PCI_BASE_ADDRESS_SPACE 0x01 /* 0 = memory, 1 = I/O */ #define PCI_BASE_ADDRESS_SPACE_IO 0x01 #define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00 #define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06 #define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */ #define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */ #define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */ #define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */ #define PCI_BASE_ADDRESS_MEM_MASK (~0x0fUL) #define PCI_BASE_ADDRESS_IO_MASK (~0x03UL) /* bit 1 is reserved if address_space = 1 */ #define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */ /* Header type 0 (normal devices) */ #define PCI_CARDBUS_CIS 0x28 #define PCI_SUBSYSTEM_VENDOR_ID 0x2c #define PCI_SUBSYSTEM_ID 0x2e #define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */ #define PCI_ROM_ADDRESS_ENABLE 0x01 #define PCI_ROM_ADDRESS_MASK (~0x7ffUL) #define PCI_INTERRUPT_LINE 0x3c /* 8 bits */ #define PCI_INTERRUPT_PIN 0x3d /* 8 bits */ #define PCI_CB_SUBSYSTEM_VENDOR_ID 0x40 #define PCI_CB_SUBSYSTEM_ID 0x42 #define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */ #define PCI_CB_CAPABILITY_LIST 0x14 /* Capability lists */ #define PCI_CAP_LIST_ID 0 /* Capability ID */ #define PCI_CAP_ID_PM 0x01 /* Power Management */ #define PCI_CAP_ID_AGP 0x02 /* Accelerated Graphics Port */ #define PCI_CAP_ID_VPD 0x03 /* Vital Product Data */ #define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */ #define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */ #define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */ #define PCI_CAP_ID_PCIX 0x07 /* PCI-X */ #define PCI_CAP_ID_HT 0x08 /* HyperTransport */ #define PCI_CAP_ID_VNDR 0x09 /* Vendor specific capability */ #define PCI_CAP_ID_SHPC 0x0C /* PCI Standard Hot-Plug Controller */ #define PCI_CAP_ID_EXP 0x10 /* PCI Express */ #define PCI_CAP_ID_MSIX 0x11 /* MSI-X */ #define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */ #define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */ #define PCI_CAP_SIZEOF 4 /* AGP registers */ #define PCI_AGP_VERSION 2 /* BCD version number */ #define PCI_AGP_RFU 3 /* Rest of capability flags */ #define PCI_AGP_STATUS 4 /* Status register */ #define PCI_AGP_STATUS_RQ_MASK 0xff000000 /* Maximum number of requests - 1 */ #define PCI_AGP_STATUS_SBA 0x0200 /* Sideband addressing supported */ #define PCI_AGP_STATUS_64BIT 0x0020 /* 64-bit addressing supported */ #define PCI_AGP_STATUS_FW 0x0010 /* FW transfers supported */ #define PCI_AGP_STATUS_RATE4 0x0004 /* 4x transfer rate supported */ #define PCI_AGP_STATUS_RATE2 0x0002 /* 2x transfer rate supported */ #define PCI_AGP_STATUS_RATE1 0x0001 /* 1x transfer rate supported */ #define PCI_AGP_COMMAND 8 /* Control register */ #define PCI_AGP_COMMAND_RQ_MASK 0xff000000 /* Master: Maximum number of requests */ #define PCI_AGP_COMMAND_SBA 0x0200 /* Sideband addressing enabled */ #define PCI_AGP_COMMAND_AGP 0x0100 /* Allow processing of AGP transactions */ #define PCI_AGP_COMMAND_64BIT 0x0020 /* Allow processing of 64-bit addresses */ #define PCI_AGP_COMMAND_FW 0x0010 /* Force FW transfers */ #define PCI_AGP_COMMAND_RATE4 0x0004 /* Use 4x rate */ #define PCI_AGP_COMMAND_RATE2 0x0002 /* Use 2x rate */ #define PCI_AGP_COMMAND_RATE1 0x0001 /* Use 1x rate */ #define PCI_AGP_SIZEOF 12 #define PCI_MAP_REG_START 0x10 #define PCI_MAP_REG_END 0x28 #define PCI_MAP_ROM_REG 0x30 #define PCI_MAP_MEMORY 0x00000000 #define PCI_MAP_IO 0x00000001 #define PCI_MAP_MEMORY_TYPE 0x00000007 #define PCI_MAP_IO_TYPE 0x00000003 #define PCI_MAP_MEMORY_TYPE_32BIT 0x00000000 #define PCI_MAP_MEMORY_TYPE_32BIT_1M 0x00000002 #define PCI_MAP_MEMORY_TYPE_64BIT 0x00000004 #define PCI_MAP_MEMORY_TYPE_MASK 0x00000006 #define PCI_MAP_MEMORY_CACHABLE 0x00000008 #define PCI_MAP_MEMORY_ATTR_MASK 0x0000000e #define PCI_MAP_MEMORY_ADDRESS_MASK 0xfffffff0 #define PCI_MAP_IO_ATTR_MASK 0x00000003 #define PCI_MAP_IS_IO(b) ((b) & PCI_MAP_IO) #define PCI_MAP_IS_MEM(b) (!PCI_MAP_IS_IO(b)) #define PCI_MAP_IS64BITMEM(b) \ (((b) & PCI_MAP_MEMORY_TYPE_MASK) == PCI_MAP_MEMORY_TYPE_64BIT) #define PCIGETMEMORY(b) ((b) & PCI_MAP_MEMORY_ADDRESS_MASK) #define PCIGETMEMORY64HIGH(b) (*((CARD32*)&b + 1)) #define PCIGETMEMORY64(b) \ (PCIGETMEMORY(b) | ((CARD64)PCIGETMEMORY64HIGH(b) << 32)) #define PCI_MAP_IO_ADDRESS_MASK 0xfffffffc #define PCIGETIO(b) ((b) & PCI_MAP_IO_ADDRESS_MASK) #define PCI_MAP_ROM_DECODE_ENABLE 0x00000001 #define PCI_MAP_ROM_ADDRESS_MASK 0xfffff800 #define PCIGETROM(b) ((b) & PCI_MAP_ROM_ADDRESS_MASK) #ifndef PCI_DOM_MASK # define PCI_DOM_MASK 0x0ffu #endif #define PCI_DOMBUS_MASK (((PCI_DOM_MASK) << 8) | 0x0ffu) #define PCI_MAKE_TAG(b,d,f) ((((b) & (PCI_DOMBUS_MASK)) << 16) | \ (((d) & 0x00001fu) << 11) | \ (((f) & 0x000007u) << 8)) #define PCI_BUS_FROM_TAG(tag) (((tag) >> 16) & (PCI_DOMBUS_MASK)) #define PCI_DEV_FROM_TAG(tag) (((tag) & 0x0000f800u) >> 11) #define PCI_FUNC_FROM_TAG(tag) (((tag) & 0x00000700u) >> 8) #define PCI_DFN_FROM_TAG(tag) (((tag) & 0x0000ff00u) >> 8) #define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07)) #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f) #define PCI_FUNC(devfn) ((devfn) & 0x07) typedef unsigned int PCITAG; extern inline PCITAG pciTag(int busnum, int devnum, int funcnum) { return(PCI_MAKE_TAG(busnum,devnum,funcnum)); } struct resource { resource_size_t start; resource_size_t end; // const char *name; unsigned long flags; // struct resource *parent, *sibling, *child; }; /* * IO resources have these defined flags. */ #define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */ #define IORESOURCE_IO 0x00000100 /* Resource type */ #define IORESOURCE_MEM 0x00000200 #define IORESOURCE_IRQ 0x00000400 #define IORESOURCE_DMA 0x00000800 #define IORESOURCE_PREFETCH 0x00001000 /* No side effects */ #define IORESOURCE_READONLY 0x00002000 #define IORESOURCE_CACHEABLE 0x00004000 #define IORESOURCE_RANGELENGTH 0x00008000 #define IORESOURCE_SHADOWABLE 0x00010000 #define IORESOURCE_BUS_HAS_VGA 0x00080000 #define IORESOURCE_DISABLED 0x10000000 #define IORESOURCE_UNSET 0x20000000 #define IORESOURCE_AUTO 0x40000000 #define IORESOURCE_BUSY 0x80000000 /* Driver has marked this resource busy */ /* ISA PnP IRQ specific bits (IORESOURCE_BITS) */ #define IORESOURCE_IRQ_HIGHEDGE (1<<0) #define IORESOURCE_IRQ_LOWEDGE (1<<1) #define IORESOURCE_IRQ_HIGHLEVEL (1<<2) #define IORESOURCE_IRQ_LOWLEVEL (1<<3) #define IORESOURCE_IRQ_SHAREABLE (1<<4) /* ISA PnP DMA specific bits (IORESOURCE_BITS) */ #define IORESOURCE_DMA_TYPE_MASK (3<<0) #define IORESOURCE_DMA_8BIT (0<<0) #define IORESOURCE_DMA_8AND16BIT (1<<0) #define IORESOURCE_DMA_16BIT (2<<0) #define IORESOURCE_DMA_MASTER (1<<2) #define IORESOURCE_DMA_BYTE (1<<3) #define IORESOURCE_DMA_WORD (1<<4) #define IORESOURCE_DMA_SPEED_MASK (3<<6) #define IORESOURCE_DMA_COMPATIBLE (0<<6) #define IORESOURCE_DMA_TYPEA (1<<6) #define IORESOURCE_DMA_TYPEB (2<<6) #define IORESOURCE_DMA_TYPEF (3<<6) /* ISA PnP memory I/O specific bits (IORESOURCE_BITS) */ #define IORESOURCE_MEM_WRITEABLE (1<<0) /* dup: IORESOURCE_READONLY */ #define IORESOURCE_MEM_CACHEABLE (1<<1) /* dup: IORESOURCE_CACHEABLE */ #define IORESOURCE_MEM_RANGELENGTH (1<<2) /* dup: IORESOURCE_RANGELENGTH */ #define IORESOURCE_MEM_TYPE_MASK (3<<3) #define IORESOURCE_MEM_8BIT (0<<3) #define IORESOURCE_MEM_16BIT (1<<3) #define IORESOURCE_MEM_8AND16BIT (2<<3) #define IORESOURCE_MEM_32BIT (3<<3) #define IORESOURCE_MEM_SHADOWABLE (1<<5) /* dup: IORESOURCE_SHADOWABLE */ #define IORESOURCE_MEM_EXPANSIONROM (1<<6) /* PCI ROM control bits (IORESOURCE_BITS) */ #define IORESOURCE_ROM_ENABLE (1<<0) /* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */ #define IORESOURCE_ROM_SHADOW (1<<1) /* ROM is copy at C000:0 */ #define IORESOURCE_ROM_COPY (1<<2) /* ROM is alloc'd copy, resource field overlaid */ #define IORESOURCE_ROM_BIOS_COPY (1<<3) /* ROM is BIOS copy, resource field overlaid */ /* PCI control bits. Shares IORESOURCE_BITS with above PCI ROM. */ #define IORESOURCE_PCI_FIXED (1<<4) /* Do not move resource */ /* * 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 DEVICE_COUNT_RESOURCE 12 /* * The pci_dev structure is used to describe PCI devices. */ struct pci_dev { // 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 */ // struct pci_slot *slot; /* Physical slot this device is in */ u32_t bus; u32_t devfn; /* encoded device & function index */ u16_t vendor; u16_t device; u16_t subsystem_vendor; u16_t subsystem_device; u32_t class; /* 3 bytes: (base,sub,prog-if) */ uint8_t revision; /* PCI revision, low byte of class word */ uint8_t hdr_type; /* PCI header type (`multi' flag masked out) */ uint8_t pcie_type; /* PCI-E device/port type */ uint8_t rom_base_reg; /* which config register controls the ROM */ uint8_t pin; /* which interrupt pin this device uses */ // struct pci_driver *driver; /* which driver has allocated this device */ uint64_t 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. */ // struct device_dma_parameters dma_parms; // pci_power_t current_state; /* Current operating state. In ACPI-speak, // this is D0-D3, D0 being fully functional, // and D3 being off. */ // int pm_cap; /* PM capability offset in the // configuration space */ unsigned int pme_support:5; /* Bitmask of states from which PME# can be generated */ unsigned int d1_support:1; /* Low power state D1 is supported */ unsigned int d2_support:1; /* Low power state D2 is supported */ unsigned int no_d1d2:1; /* Only allow D0 and D3 */ // pci_channel_state_t error_state; /* current connectivity state */ struct device dev; /* Generic device interface */ // 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_added:1; unsigned int is_busmaster:1; /* device is busmaster */ unsigned int no_msi:1; /* device may not use msi */ unsigned int block_ucfg_access:1; /* userspace config space access is blocked */ unsigned int broken_parity_status:1; /* Device generates false positive parity */ unsigned int irq_reroute_variant:2; /* device needs IRQ rerouting variant */ unsigned int msi_enabled:1; unsigned int msix_enabled:1; unsigned int ari_enabled:1; /* ARI forwarding */ unsigned int is_managed:1; unsigned int is_pcie:1; unsigned int state_saved:1; unsigned int is_physfn:1; unsigned int is_virtfn:1; // pci_dev_flags_t dev_flags; // atomic_t enable_cnt; /* pci_enable_device has been called */ // u32 saved_config_space[16]; /* config space saved at suspend time */ // struct hlist_head saved_cap_space; // 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 */ // struct bin_attribute *res_attr_wc[DEVICE_COUNT_RESOURCE]; /* sysfs file for WC mapping of resources */ }; #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)) typedef struct { struct list_head link; struct pci_dev pci_dev; }pci_dev_t; int enum_pci_devices(void); struct pci_device_id* find_pci_device(pci_dev_t* pdev, struct pci_device_id *idlist); #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) int pci_set_dma_mask(struct pci_dev *dev, u64 mask); #define pci_name(x) "radeon" #endif //__PCI__H__