--- /dev/null
+#ifndef _IPXE_PCI_H
+#define _IPXE_PCI_H
+
+/*
+ * Support for NE2000 PCI clones added David Monro June 1997
+ * Generalised for other PCI NICs by Ken Yap July 1997
+ * PCI support rewritten by Michael Brown 2006
+ *
+ * Most of this is taken from /usr/src/linux/include/linux/pci.h.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2, or (at
+ * your option) any later version.
+ */
+
+FILE_LICENCE ( GPL2_ONLY );
+
+#include <stdint.h>
+#include <ipxe/device.h>
+#include <ipxe/tables.h>
+#include <ipxe/pci_io.h>
+#include "pci_ids.h"
+
+/*
+ * PCI constants
+ *
+ */
+
+#define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */
+#define PCI_COMMAND_MEM 0x2 /* Enable response in mem space */
+#define PCI_COMMAND_MASTER 0x4 /* Enable bus mastering */
+
+#define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */
+#define PCI_LATENCY_TIMER 0x0d /* 8 bits */
+
+#define PCI_COMMAND_SPECIAL 0x8 /* Enable response to special cycles */
+#define PCI_COMMAND_INVALIDATE 0x10 /* Use memory write and invalidate */
+#define PCI_COMMAND_VGA_PALETTE 0x20 /* Enable palette snooping */
+#define PCI_COMMAND_PARITY 0x40 /* Enable parity checking */
+#define PCI_COMMAND_WAIT 0x80 /* 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_VENDOR_ID 0x00 /* 16 bits */
+#define PCI_DEVICE_ID 0x02 /* 16 bits */
+#define PCI_COMMAND 0x04 /* 16 bits */
+
+#define PCI_STATUS 0x06 /* 16 bits */
+#define PCI_STATUS_CAP_LIST 0x10 /* Support Capability List */
+#define PCI_STATUS_66MHZ 0x20 /* Support 66 Mhz PCI 2.1 bus */
+#define PCI_STATUS_UDF 0x40 /* Support User Definable Features [obsolete] */
+#define PCI_STATUS_FAST_BACK 0x80 /* 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_REVISION 0x08 /* 8 bits */
+#define PCI_REVISION_ID 0x08 /* 8 bits */
+#define PCI_CLASS_REVISION 0x08 /* 32 bits */
+#define PCI_CLASS_CODE 0x0b /* 8 bits */
+#define PCI_SUBCLASS_CODE 0x0a /* 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
+
+
+/* Header type 0 (normal devices) */
+#define PCI_CARDBUS_CIS 0x28
+#define PCI_SUBSYSTEM_VENDOR_ID 0x2c
+#define PCI_SUBSYSTEM_ID 0x2e
+
+#define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */
+#define PCI_BASE_ADDRESS_1 0x14 /* 32 bits */
+#define PCI_BASE_ADDRESS_2 0x18 /* 32 bits */
+#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_MASK (~0x0f)
+#define PCI_BASE_ADDRESS_IO_MASK (~0x03)
+#define PCI_ROM_ADDRESS 0x30 /* 32 bits */
+#define PCI_ROM_ADDRESS_ENABLE 0x01 /* Write 1 to enable ROM,
+ bits 31..11 are address,
+ 10..2 are reserved */
+
+#define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */
+
+#define PCI_INTERRUPT_LINE 0x3c /* IRQ number (0-15) */
+#define PCI_INTERRUPT_PIN 0x3d /* IRQ pin on PCI bus (A-D) */
+
+/* Header type 1 (PCI-to-PCI bridges) */
+#define PCI_PRIMARY_BUS 0x18 /* Primary bus number */
+#define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */
+#define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */
+#define PCI_SEC_LATENCY_TIMER 0x1b /* Latency timer for secondary interface */
+#define PCI_IO_BASE 0x1c /* I/O range behind the bridge */
+#define PCI_IO_LIMIT 0x1d
+#define PCI_IO_RANGE_TYPE_MASK 0x0f /* I/O bridging type */
+#define PCI_IO_RANGE_TYPE_16 0x00
+#define PCI_IO_RANGE_TYPE_32 0x01
+#define PCI_IO_RANGE_MASK ~0x0f
+#define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */
+#define PCI_MEMORY_BASE 0x20 /* Memory range behind */
+#define PCI_MEMORY_LIMIT 0x22
+#define PCI_MEMORY_RANGE_TYPE_MASK 0x0f
+#define PCI_MEMORY_RANGE_MASK ~0x0f
+#define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */
+#define PCI_PREF_MEMORY_LIMIT 0x26
+#define PCI_PREF_RANGE_TYPE_MASK 0x0f
+#define PCI_PREF_RANGE_TYPE_32 0x00
+#define PCI_PREF_RANGE_TYPE_64 0x01
+#define PCI_PREF_RANGE_MASK ~0x0f
+#define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */
+#define PCI_PREF_LIMIT_UPPER32 0x2c
+#define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */
+#define PCI_IO_LIMIT_UPPER16 0x32
+/* 0x34 same as for htype 0 */
+/* 0x35-0x3b is reserved */
+#define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */
+/* 0x3c-0x3d are same as for htype 0 */
+#define PCI_BRIDGE_CONTROL 0x3e
+#define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */
+#define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */
+#define PCI_BRIDGE_CTL_NO_ISA 0x04 /* Disable bridging of ISA ports */
+#define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */
+#define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */
+#define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */
+#define PCI_BRIDGE_CTL_FAST_BACK 0x80 /* Fast Back2Back enabled on secondary interface */
+
+#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_VNDR 0x09 /* Vendor specific */
+#define PCI_CAP_ID_EXP 0x10 /* PCI Express */
+#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
+
+/* Power Management Registers */
+
+#define PCI_PM_PMC 2 /* PM Capabilities Register */
+#define PCI_PM_CAP_VER_MASK 0x0007 /* Version */
+#define PCI_PM_CAP_PME_CLOCK 0x0008 /* PME clock required */
+#define PCI_PM_CAP_RESERVED 0x0010 /* Reserved field */
+#define PCI_PM_CAP_DSI 0x0020 /* Device specific initialization */
+#define PCI_PM_CAP_AUX_POWER 0x01C0 /* Auxiliary power support mask */
+#define PCI_PM_CAP_D1 0x0200 /* D1 power state support */
+#define PCI_PM_CAP_D2 0x0400 /* D2 power state support */
+#define PCI_PM_CAP_PME 0x0800 /* PME pin supported */
+#define PCI_PM_CAP_PME_MASK 0xF800 /* PME Mask of all supported states */
+#define PCI_PM_CAP_PME_D0 0x0800 /* PME# from D0 */
+#define PCI_PM_CAP_PME_D1 0x1000 /* PME# from D1 */
+#define PCI_PM_CAP_PME_D2 0x2000 /* PME# from D2 */
+#define PCI_PM_CAP_PME_D3 0x4000 /* PME# from D3 (hot) */
+#define PCI_PM_CAP_PME_D3cold 0x8000 /* PME# from D3 (cold) */
+#define PCI_PM_CTRL 4 /* PM control and status register */
+#define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */
+#define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */
+#define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */
+#define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */
+#define PCI_PM_CTRL_PME_STATUS 0x8000 /* PME pin status */
+#define PCI_PM_PPB_EXTENSIONS 6 /* PPB support extensions (??) */
+#define PCI_PM_PPB_B2_B3 0x40 /* Stop clock when in D3hot (??) */
+#define PCI_PM_BPCC_ENABLE 0x80 /* Bus power/clock control enable (??) */
+#define PCI_PM_DATA_REGISTER 7 /* (??) */
+#define PCI_PM_SIZEOF 8
+
+/* 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
+
+/* Slot Identification */
+
+#define PCI_SID_ESR 2 /* Expansion Slot Register */
+#define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */
+#define PCI_SID_ESR_FIC 0x20 /* First In Chassis Flag */
+#define PCI_SID_CHASSIS_NR 3 /* Chassis Number */
+
+/* Message Signalled Interrupts registers */
+
+#define PCI_MSI_FLAGS 2 /* Various flags */
+#define PCI_MSI_FLAGS_64BIT 0x80 /* 64-bit addresses allowed */
+#define PCI_MSI_FLAGS_QSIZE 0x70 /* Message queue size configured */
+#define PCI_MSI_FLAGS_QMASK 0x0e /* Maximum queue size available */
+#define PCI_MSI_FLAGS_ENABLE 0x01 /* MSI feature enabled */
+#define PCI_MSI_RFU 3 /* Rest of capability flags */
+#define PCI_MSI_ADDRESS_LO 4 /* Lower 32 bits */
+#define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */
+#define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */
+#define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */
+
+/* Advanced Error Reporting */
+
+#define PCI_ERR_UNCOR_STATUS 4 /* Uncorrectable Error Status */
+#define PCI_ERR_UNC_TRAIN 0x00000001 /* Training */
+#define PCI_ERR_UNC_DLP 0x00000010 /* Data Link Protocol */
+#define PCI_ERR_UNC_POISON_TLP 0x00001000 /* Poisoned TLP */
+#define PCI_ERR_UNC_FCP 0x00002000 /* Flow Control Protocol */
+#define PCI_ERR_UNC_COMP_TIME 0x00004000 /* Completion Timeout */
+#define PCI_ERR_UNC_COMP_ABORT 0x00008000 /* Completer Abort */
+#define PCI_ERR_UNC_UNX_COMP 0x00010000 /* Unexpected Completion */
+#define PCI_ERR_UNC_RX_OVER 0x00020000 /* Receiver Overflow */
+#define PCI_ERR_UNC_MALF_TLP 0x00040000 /* Malformed TLP */
+#define PCI_ERR_UNC_ECRC 0x00080000 /* ECRC Error Status */
+#define PCI_ERR_UNC_UNSUP 0x00100000 /* Unsupported Request */
+#define PCI_ERR_UNCOR_MASK 8 /* Uncorrectable Error Mask */
+ /* Same bits as above */
+#define PCI_ERR_UNCOR_SEVER 12 /* Uncorrectable Error Severity */
+ /* Same bits as above */
+#define PCI_ERR_COR_STATUS 16 /* Correctable Error Status */
+#define PCI_ERR_COR_RCVR 0x00000001 /* Receiver Error Status */
+#define PCI_ERR_COR_BAD_TLP 0x00000040 /* Bad TLP Status */
+#define PCI_ERR_COR_BAD_DLLP 0x00000080 /* Bad DLLP Status */
+#define PCI_ERR_COR_REP_ROLL 0x00000100 /* REPLAY_NUM Rollover */
+#define PCI_ERR_COR_REP_TIMER 0x00001000 /* Replay Timer Timeout */
+#define PCI_ERR_COR_MASK 20 /* Correctable Error Mask */
+ /* Same bits as above */
+
+/** A PCI device ID list entry */
+struct pci_device_id {
+ /** Name */
+ const char *name;
+ /** PCI vendor ID */
+ uint16_t vendor;
+ /** PCI device ID */
+ uint16_t device;
+ /** Arbitrary driver data */
+ unsigned long driver_data;
+};
+
+/** Match-anything ID */
+#define PCI_ANY_ID 0xffff
+
+/** A PCI device */
+struct pci_device {
+ /** Generic device */
+ struct device dev;
+ /** Memory base
+ *
+ * This is the physical address of the first valid memory BAR.
+ */
+ unsigned long membase;
+ /**
+ * I/O address
+ *
+ * This is the physical address of the first valid I/O BAR.
+ */
+ unsigned long ioaddr;
+ /** Vendor ID */
+ uint16_t vendor;
+ /** Device ID */
+ uint16_t device;
+ /** Device class */
+ uint32_t class;
+ /** Interrupt number */
+ uint8_t irq;
+ /** Bus, device, and function (bus:dev.fn) number */
+ uint16_t busdevfn;
+ /** Driver for this device */
+ struct pci_driver *driver;
+ /** Driver-private data
+ *
+ * Use pci_set_drvdata() and pci_get_drvdata() to access this
+ * field.
+ */
+ void *priv;
+ /** Driver device ID */
+ struct pci_device_id *id;
+};
+
+/** A PCI driver */
+struct pci_driver {
+ /** PCI ID table */
+ struct pci_device_id *ids;
+ /** Number of entries in PCI ID table */
+ unsigned int id_count;
+ /**
+ * Probe device
+ *
+ * @v pci PCI device
+ * @ret rc Return status code
+ */
+ int ( * probe ) ( struct pci_device *pci );
+ /**
+ * Remove device
+ *
+ * @v pci PCI device
+ */
+ void ( * remove ) ( struct pci_device *pci );
+};
+
+/** PCI driver table */
+#define PCI_DRIVERS __table ( struct pci_driver, "pci_drivers" )
+
+/** Declare a PCI driver */
+#define __pci_driver __table_entry ( PCI_DRIVERS, 01 )
+
+/** Declare a fallback PCI driver */
+#define __pci_driver_fallback __table_entry ( PCI_DRIVERS, 02 )
+
+#define PCI_BUS( busdevfn ) ( ( (busdevfn) >> 8 ) & 0xff )
+#define PCI_SLOT( busdevfn ) ( ( (busdevfn) >> 3 ) & 0x1f )
+#define PCI_FUNC( busdevfn ) ( ( (busdevfn) >> 0 ) & 0x07 )
+#define PCI_BUSDEVFN( bus, slot, func ) \
+ ( ( (bus) << 8 ) | ( (slot) << 3 ) | ( (func) << 0 ) )
+#define PCI_FIRST_FUNC( busdevfn ) ( (busdevfn) & ~0x07 )
+
+#define PCI_BASE_CLASS( class ) ( (class) >> 16 )
+#define PCI_SUB_CLASS( class ) ( ( (class) >> 8 ) & 0xff )
+#define PCI_PROG_INTF( class ) ( (class) & 0xff )
+
+/*
+ * PCI_ROM is used to build up entries in a struct pci_id array. It
+ * is also parsed by parserom.pl to generate Makefile rules and files
+ * for rom-o-matic.
+ *
+ * PCI_ID can be used to generate entries without creating a
+ * corresponding ROM in the build process.
+ */
+#define PCI_ID( _vendor, _device, _name, _description, _data ) { \
+ .vendor = _vendor, \
+ .device = _device, \
+ .name = _name, \
+ .driver_data = _data \
+}
+#define PCI_ROM( _vendor, _device, _name, _description, _data ) \
+ PCI_ID( _vendor, _device, _name, _description, _data )
+
+/** PCI device debug message format */
+#define PCI_FMT "PCI %02x:%02x.%x"
+
+/** PCI device debug message arguments */
+#define PCI_ARGS( pci ) \
+ PCI_BUS ( (pci)->busdevfn ), PCI_SLOT ( (pci)->busdevfn ), \
+ PCI_FUNC ( (pci)->busdevfn )
+
+extern void adjust_pci_device ( struct pci_device *pci );
+extern unsigned long pci_bar_start ( struct pci_device *pci,
+ unsigned int reg );
+extern int pci_read_config ( struct pci_device *pci );
+extern int pci_find_next ( struct pci_device *pci, unsigned int busdevfn );
+extern int pci_find_driver ( struct pci_device *pci );
+extern int pci_probe ( struct pci_device *pci );
+extern void pci_remove ( struct pci_device *pci );
+extern int pci_find_capability ( struct pci_device *pci, int capability );
+extern unsigned long pci_bar_size ( struct pci_device *pci, unsigned int reg );
+
+/**
+ * Initialise PCI device
+ *
+ * @v pci PCI device
+ * @v busdevfn PCI bus:dev.fn address
+ */
+static inline void pci_init ( struct pci_device *pci, unsigned int busdevfn ) {
+ pci->busdevfn = busdevfn;
+}
+
+/**
+ * Set PCI driver
+ *
+ * @v pci PCI device
+ * @v driver PCI driver
+ * @v id PCI device ID
+ */
+static inline void pci_set_driver ( struct pci_device *pci,
+ struct pci_driver *driver,
+ struct pci_device_id *id ) {
+ pci->driver = driver;
+ pci->id = id;
+ pci->dev.driver_name = id->name;
+}
+
+/**
+ * Set PCI driver-private data
+ *
+ * @v pci PCI device
+ * @v priv Private data
+ */
+static inline void pci_set_drvdata ( struct pci_device *pci, void *priv ) {
+ pci->priv = priv;
+}
+
+/**
+ * Get PCI driver-private data
+ *
+ * @v pci PCI device
+ * @ret priv Private data
+ */
+static inline void * pci_get_drvdata ( struct pci_device *pci ) {
+ return pci->priv;
+}
+
+#endif /* _IPXE_PCI_H */
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