Create releng/7.2 from stable/7 in preparation for 7.2-RELEASE.

[FreeBSD/releng/7.2.git] / sys / dev / pci / pcireg.h

/*-
 * Copyright (c) 1997, Stefan Esser <se@freebsd.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $FreeBSD$
 *
 */

/*
 * PCIM_xxx: mask to locate subfield in register
 * PCIR_xxx: config register offset
 * PCIC_xxx: device class
 * PCIS_xxx: device subclass
 * PCIP_xxx: device programming interface
 * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
 * PCID_xxx: device ID
 * PCIY_xxx: capability identification number
 */

/* some PCI bus constants */

#define PCI_BUSMAX      255
#define PCI_SLOTMAX     31
#define PCI_FUNCMAX     7
#define PCI_REGMAX      255
#define PCI_MAXHDRTYPE  2

/* PCI config header registers for all devices */

#define PCIR_DEVVENDOR  0x00
#define PCIR_VENDOR     0x00
#define PCIR_DEVICE     0x02
#define PCIR_COMMAND    0x04
#define PCIM_CMD_PORTEN         0x0001
#define PCIM_CMD_MEMEN          0x0002
#define PCIM_CMD_BUSMASTEREN    0x0004
#define PCIM_CMD_SPECIALEN      0x0008
#define PCIM_CMD_MWRICEN        0x0010
#define PCIM_CMD_PERRESPEN      0x0040
#define PCIM_CMD_SERRESPEN      0x0100
#define PCIM_CMD_BACKTOBACK     0x0200
#define PCIM_CMD_INTxDIS        0x0400
#define PCIR_STATUS     0x06
#define PCIM_STATUS_CAPPRESENT  0x0010
#define PCIM_STATUS_66CAPABLE   0x0020
#define PCIM_STATUS_BACKTOBACK  0x0080
#define PCIM_STATUS_PERRREPORT  0x0100
#define PCIM_STATUS_SEL_FAST    0x0000
#define PCIM_STATUS_SEL_MEDIMUM 0x0200
#define PCIM_STATUS_SEL_SLOW    0x0400
#define PCIM_STATUS_SEL_MASK    0x0600
#define PCIM_STATUS_STABORT     0x0800
#define PCIM_STATUS_RTABORT     0x1000
#define PCIM_STATUS_RMABORT     0x2000
#define PCIM_STATUS_SERR        0x4000
#define PCIM_STATUS_PERR        0x8000
#define PCIR_REVID      0x08
#define PCIR_PROGIF     0x09
#define PCIR_SUBCLASS   0x0a
#define PCIR_CLASS      0x0b
#define PCIR_CACHELNSZ  0x0c
#define PCIR_LATTIMER   0x0d
#define PCIR_HDRTYPE    0x0e
#define PCIM_HDRTYPE            0x7f
#define PCIM_HDRTYPE_NORMAL     0x00
#define PCIM_HDRTYPE_BRIDGE     0x01
#define PCIM_HDRTYPE_CARDBUS    0x02
#define PCIM_MFDEV              0x80
#define PCIR_BIST       0x0f

/* Capability Register Offsets */

#define PCICAP_ID       0x0
#define PCICAP_NEXTPTR  0x1

/* Capability Identification Numbers */

#define PCIY_PMG        0x01    /* PCI Power Management */
#define PCIY_AGP        0x02    /* AGP */
#define PCIY_VPD        0x03    /* Vital Product Data */
#define PCIY_SLOTID     0x04    /* Slot Identification */
#define PCIY_MSI        0x05    /* Message Signaled Interrupts */
#define PCIY_CHSWP      0x06    /* CompactPCI Hot Swap */
#define PCIY_PCIX       0x07    /* PCI-X */
#define PCIY_HT         0x08    /* HyperTransport */
#define PCIY_VENDOR     0x09    /* Vendor Unique */
#define PCIY_DEBUG      0x0a    /* Debug port */
#define PCIY_CRES       0x0b    /* CompactPCI central resource control */
#define PCIY_HOTPLUG    0x0c    /* PCI Hot-Plug */
#define PCIY_SUBVENDOR  0x0d    /* PCI-PCI bridge subvendor ID */
#define PCIY_AGP8X      0x0e    /* AGP 8x */
#define PCIY_SECDEV     0x0f    /* Secure Device */
#define PCIY_EXPRESS    0x10    /* PCI Express */
#define PCIY_MSIX       0x11    /* MSI-X */

/* config registers for header type 0 devices */

#define PCIR_BARS       0x10
#define PCIR_BAR(x)             (PCIR_BARS + (x) * 4)
#define PCIR_MAX_BAR_0          5
#define PCI_RID2BAR(rid)        (((rid) - PCIR_BARS) / 4)
#define PCI_BAR_IO(x)           (((x) & PCIM_BAR_SPACE) == PCIM_BAR_IO_SPACE)
#define PCI_BAR_MEM(x)          (((x) & PCIM_BAR_SPACE) == PCIM_BAR_MEM_SPACE)
#define PCIM_BAR_SPACE          0x00000001
#define PCIM_BAR_MEM_SPACE      0
#define PCIM_BAR_IO_SPACE       1
#define PCIM_BAR_MEM_TYPE       0x00000006
#define PCIM_BAR_MEM_32         0
#define PCIM_BAR_MEM_1MB        2       /* Locate below 1MB in PCI <= 2.1 */
#define PCIM_BAR_MEM_64         4
#define PCIM_BAR_MEM_PREFETCH   0x00000008
#define PCIM_BAR_MEM_BASE       0xfffffff0
#define PCIM_BAR_IO_RESERVED    0x00000002
#define PCIM_BAR_IO_BASE        0xfffffffc
#define PCIR_CIS        0x28
#define PCIM_CIS_ASI_MASK       0x7
#define PCIM_CIS_ASI_CONFIG     0
#define PCIM_CIS_ASI_BAR0       1
#define PCIM_CIS_ASI_BAR1       2
#define PCIM_CIS_ASI_BAR2       3
#define PCIM_CIS_ASI_BAR3       4
#define PCIM_CIS_ASI_BAR4       5
#define PCIM_CIS_ASI_BAR5       6
#define PCIM_CIS_ASI_ROM        7
#define PCIM_CIS_ADDR_MASK      0x0ffffff8
#define PCIM_CIS_ROM_MASK       0xf0000000
#define PCIM_CIS_CONFIG_MASK    0xff
#define PCIR_SUBVEND_0  0x2c
#define PCIR_SUBDEV_0   0x2e
#define PCIR_BIOS       0x30
#define PCIM_BIOS_ENABLE        0x01
#define PCIM_BIOS_ADDR_MASK     0xfffff800
#define PCIR_CAP_PTR    0x34
#define PCIR_INTLINE    0x3c
#define PCIR_INTPIN     0x3d
#define PCIR_MINGNT     0x3e
#define PCIR_MAXLAT     0x3f

/* config registers for header type 1 (PCI-to-PCI bridge) devices */

#define PCIR_MAX_BAR_1  1
#define PCIR_SECSTAT_1  0x1e

#define PCIR_PRIBUS_1   0x18
#define PCIR_SECBUS_1   0x19
#define PCIR_SUBBUS_1   0x1a
#define PCIR_SECLAT_1   0x1b

#define PCIR_IOBASEL_1  0x1c
#define PCIR_IOLIMITL_1 0x1d
#define PCIR_IOBASEH_1  0x30
#define PCIR_IOLIMITH_1 0x32
#define PCIM_BRIO_16            0x0
#define PCIM_BRIO_32            0x1
#define PCIM_BRIO_MASK          0xf

#define PCIR_MEMBASE_1  0x20
#define PCIR_MEMLIMIT_1 0x22

#define PCIR_PMBASEL_1  0x24
#define PCIR_PMLIMITL_1 0x26
#define PCIR_PMBASEH_1  0x28
#define PCIR_PMLIMITH_1 0x2c
#define PCIM_BRPM_32            0x0
#define PCIM_BRPM_64            0x1
#define PCIM_BRPM_MASK          0xf

#define PCIR_BRIDGECTL_1 0x3e

/* config registers for header type 2 (CardBus) devices */

#define PCIR_MAX_BAR_2  0
#define PCIR_CAP_PTR_2  0x14
#define PCIR_SECSTAT_2  0x16

#define PCIR_PRIBUS_2   0x18
#define PCIR_SECBUS_2   0x19
#define PCIR_SUBBUS_2   0x1a
#define PCIR_SECLAT_2   0x1b

#define PCIR_MEMBASE0_2 0x1c
#define PCIR_MEMLIMIT0_2 0x20
#define PCIR_MEMBASE1_2 0x24
#define PCIR_MEMLIMIT1_2 0x28
#define PCIR_IOBASE0_2  0x2c
#define PCIR_IOLIMIT0_2 0x30
#define PCIR_IOBASE1_2  0x34
#define PCIR_IOLIMIT1_2 0x38

#define PCIR_BRIDGECTL_2 0x3e

#define PCIR_SUBVEND_2  0x40
#define PCIR_SUBDEV_2   0x42

#define PCIR_PCCARDIF_2 0x44

/* PCI device class, subclass and programming interface definitions */

#define PCIC_OLD        0x00
#define PCIS_OLD_NONVGA         0x00
#define PCIS_OLD_VGA            0x01

#define PCIC_STORAGE    0x01
#define PCIS_STORAGE_SCSI       0x00
#define PCIS_STORAGE_IDE        0x01
#define PCIP_STORAGE_IDE_MODEPRIM       0x01
#define PCIP_STORAGE_IDE_PROGINDPRIM    0x02
#define PCIP_STORAGE_IDE_MODESEC        0x04
#define PCIP_STORAGE_IDE_PROGINDSEC     0x08
#define PCIP_STORAGE_IDE_MASTERDEV      0x80
#define PCIS_STORAGE_FLOPPY     0x02
#define PCIS_STORAGE_IPI        0x03
#define PCIS_STORAGE_RAID       0x04
#define PCIS_STORAGE_ATA_ADMA   0x05
#define PCIS_STORAGE_SATA       0x06
#define PCIP_STORAGE_SATA_AHCI_1_0      0x01
#define PCIS_STORAGE_SAS        0x07
#define PCIS_STORAGE_OTHER      0x80

#define PCIC_NETWORK    0x02
#define PCIS_NETWORK_ETHERNET   0x00
#define PCIS_NETWORK_TOKENRING  0x01
#define PCIS_NETWORK_FDDI       0x02
#define PCIS_NETWORK_ATM        0x03
#define PCIS_NETWORK_ISDN       0x04
#define PCIS_NETWORK_WORLDFIP   0x05
#define PCIS_NETWORK_PICMG      0x06
#define PCIS_NETWORK_OTHER      0x80

#define PCIC_DISPLAY    0x03
#define PCIS_DISPLAY_VGA        0x00
#define PCIS_DISPLAY_XGA        0x01
#define PCIS_DISPLAY_3D         0x02
#define PCIS_DISPLAY_OTHER      0x80

#define PCIC_MULTIMEDIA 0x04
#define PCIS_MULTIMEDIA_VIDEO   0x00
#define PCIS_MULTIMEDIA_AUDIO   0x01
#define PCIS_MULTIMEDIA_TELE    0x02
#define PCIS_MULTIMEDIA_HDA     0x03
#define PCIS_MULTIMEDIA_OTHER   0x80

#define PCIC_MEMORY     0x05
#define PCIS_MEMORY_RAM         0x00
#define PCIS_MEMORY_FLASH       0x01
#define PCIS_MEMORY_OTHER       0x80

#define PCIC_BRIDGE     0x06
#define PCIS_BRIDGE_HOST        0x00
#define PCIS_BRIDGE_ISA         0x01
#define PCIS_BRIDGE_EISA        0x02
#define PCIS_BRIDGE_MCA         0x03
#define PCIS_BRIDGE_PCI         0x04
#define PCIP_BRIDGE_PCI_SUBTRACTIVE     0x01
#define PCIS_BRIDGE_PCMCIA      0x05
#define PCIS_BRIDGE_NUBUS       0x06
#define PCIS_BRIDGE_CARDBUS     0x07
#define PCIS_BRIDGE_RACEWAY     0x08
#define PCIS_BRIDGE_PCI_TRANSPARENT 0x09
#define PCIS_BRIDGE_INFINIBAND  0x0a
#define PCIS_BRIDGE_OTHER       0x80

#define PCIC_SIMPLECOMM 0x07
#define PCIS_SIMPLECOMM_UART    0x00
#define PCIP_SIMPLECOMM_UART_8250       0x00
#define PCIP_SIMPLECOMM_UART_16450A     0x01
#define PCIP_SIMPLECOMM_UART_16550A     0x02
#define PCIP_SIMPLECOMM_UART_16650A     0x03
#define PCIP_SIMPLECOMM_UART_16750A     0x04
#define PCIP_SIMPLECOMM_UART_16850A     0x05
#define PCIP_SIMPLECOMM_UART_16950A     0x06
#define PCIS_SIMPLECOMM_PAR     0x01
#define PCIS_SIMPLECOMM_MULSER  0x02
#define PCIS_SIMPLECOMM_MODEM   0x03
#define PCIS_SIMPLECOMM_GPIB    0x04
#define PCIS_SIMPLECOMM_SMART_CARD 0x05
#define PCIS_SIMPLECOMM_OTHER   0x80

#define PCIC_BASEPERIPH 0x08
#define PCIS_BASEPERIPH_PIC     0x00
#define PCIP_BASEPERIPH_PIC_8259A       0x00
#define PCIP_BASEPERIPH_PIC_ISA         0x01
#define PCIP_BASEPERIPH_PIC_EISA        0x02
#define PCIP_BASEPERIPH_PIC_IO_APIC     0x10
#define PCIP_BASEPERIPH_PIC_IOX_APIC    0x20
#define PCIS_BASEPERIPH_DMA     0x01
#define PCIS_BASEPERIPH_TIMER   0x02
#define PCIS_BASEPERIPH_RTC     0x03
#define PCIS_BASEPERIPH_PCIHOT  0x04
#define PCIS_BASEPERIPH_SDHC    0x05
#define PCIS_BASEPERIPH_OTHER   0x80

#define PCIC_INPUTDEV   0x09
#define PCIS_INPUTDEV_KEYBOARD  0x00
#define PCIS_INPUTDEV_DIGITIZER 0x01
#define PCIS_INPUTDEV_MOUSE     0x02
#define PCIS_INPUTDEV_SCANNER   0x03
#define PCIS_INPUTDEV_GAMEPORT  0x04
#define PCIS_INPUTDEV_OTHER     0x80

#define PCIC_DOCKING    0x0a
#define PCIS_DOCKING_GENERIC    0x00
#define PCIS_DOCKING_OTHER      0x80

#define PCIC_PROCESSOR  0x0b
#define PCIS_PROCESSOR_386      0x00
#define PCIS_PROCESSOR_486      0x01
#define PCIS_PROCESSOR_PENTIUM  0x02
#define PCIS_PROCESSOR_ALPHA    0x10
#define PCIS_PROCESSOR_POWERPC  0x20
#define PCIS_PROCESSOR_MIPS     0x30
#define PCIS_PROCESSOR_COPROC   0x40

#define PCIC_SERIALBUS  0x0c
#define PCIS_SERIALBUS_FW       0x00
#define PCIS_SERIALBUS_ACCESS   0x01
#define PCIS_SERIALBUS_SSA      0x02
#define PCIS_SERIALBUS_USB      0x03
#define PCIP_SERIALBUS_USB_UHCI         0x00
#define PCIP_SERIALBUS_USB_OHCI         0x10
#define PCIP_SERIALBUS_USB_EHCI         0x20
#define PCIP_SERIALBUS_USB_DEVICE       0xfe
#define PCIS_SERIALBUS_FC       0x04
#define PCIS_SERIALBUS_SMBUS    0x05
#define PCIS_SERIALBUS_INFINIBAND 0x06
#define PCIS_SERIALBUS_IPMI     0x07
#define PCIP_SERIALBUS_IPMI_SMIC        0x00
#define PCIP_SERIALBUS_IPMI_KCS         0x01
#define PCIP_SERIALBUS_IPMI_BT          0x02
#define PCIS_SERIALBUS_SERCOS   0x08
#define PCIS_SERIALBUS_CANBUS   0x09

#define PCIC_WIRELESS   0x0d
#define PCIS_WIRELESS_IRDA      0x00
#define PCIS_WIRELESS_IR        0x01
#define PCIS_WIRELESS_RF        0x10
#define PCIS_WIRELESS_BLUETOOTH 0x11
#define PCIS_WIRELESS_BROADBAND 0x12
#define PCIS_WIRELESS_80211A    0x20
#define PCIS_WIRELESS_80211B    0x21
#define PCIS_WIRELESS_OTHER     0x80

#define PCIC_INTELLIIO  0x0e
#define PCIS_INTELLIIO_I2O      0x00

#define PCIC_SATCOM     0x0f
#define PCIS_SATCOM_TV          0x01
#define PCIS_SATCOM_AUDIO       0x02
#define PCIS_SATCOM_VOICE       0x03
#define PCIS_SATCOM_DATA        0x04

#define PCIC_CRYPTO     0x10
#define PCIS_CRYPTO_NETCOMP     0x00
#define PCIS_CRYPTO_ENTERTAIN   0x10
#define PCIS_CRYPTO_OTHER       0x80

#define PCIC_DASP       0x11
#define PCIS_DASP_DPIO          0x00
#define PCIS_DASP_PERFCNTRS     0x01
#define PCIS_DASP_COMM_SYNC     0x10
#define PCIS_DASP_MGMT_CARD     0x20
#define PCIS_DASP_OTHER         0x80

#define PCIC_OTHER      0xff

/* Bridge Control Values. */
#define PCIB_BCR_PERR_ENABLE            0x0001
#define PCIB_BCR_SERR_ENABLE            0x0002
#define PCIB_BCR_ISA_ENABLE             0x0004
#define PCIB_BCR_VGA_ENABLE             0x0008
#define PCIB_BCR_MASTER_ABORT_MODE      0x0020
#define PCIB_BCR_SECBUS_RESET           0x0040
#define PCIB_BCR_SECBUS_BACKTOBACK      0x0080
#define PCIB_BCR_PRI_DISCARD_TIMEOUT    0x0100
#define PCIB_BCR_SEC_DISCARD_TIMEOUT    0x0200
#define PCIB_BCR_DISCARD_TIMER_STATUS   0x0400
#define PCIB_BCR_DISCARD_TIMER_SERREN   0x0800

/* PCI power manangement */
#define PCIR_POWER_CAP          0x2
#define PCIM_PCAP_SPEC                  0x0007
#define PCIM_PCAP_PMEREQCLK             0x0008
#define PCIM_PCAP_PMEREQPWR             0x0010
#define PCIM_PCAP_DEVSPECINIT           0x0020
#define PCIM_PCAP_DYNCLOCK              0x0040
#define PCIM_PCAP_SECCLOCK              0x00c0
#define PCIM_PCAP_CLOCKMASK             0x00c0
#define PCIM_PCAP_REQFULLCLOCK          0x0100
#define PCIM_PCAP_D1SUPP                0x0200
#define PCIM_PCAP_D2SUPP                0x0400
#define PCIM_PCAP_D0PME                 0x0800
#define PCIM_PCAP_D1PME                 0x1000
#define PCIM_PCAP_D2PME                 0x2000
#define PCIM_PCAP_D3PME_HOT             0x4000
#define PCIM_PCAP_D3PME_COLD            0x8000

#define PCIR_POWER_STATUS       0x4
#define PCIM_PSTAT_D0                   0x0000
#define PCIM_PSTAT_D1                   0x0001
#define PCIM_PSTAT_D2                   0x0002
#define PCIM_PSTAT_D3                   0x0003
#define PCIM_PSTAT_DMASK                0x0003
#define PCIM_PSTAT_REPENABLE            0x0010
#define PCIM_PSTAT_PMEENABLE            0x0100
#define PCIM_PSTAT_D0POWER              0x0000
#define PCIM_PSTAT_D1POWER              0x0200
#define PCIM_PSTAT_D2POWER              0x0400
#define PCIM_PSTAT_D3POWER              0x0600
#define PCIM_PSTAT_D0HEAT               0x0800
#define PCIM_PSTAT_D1HEAT               0x1000
#define PCIM_PSTAT_D2HEAT               0x1200
#define PCIM_PSTAT_D3HEAT               0x1400
#define PCIM_PSTAT_DATAUNKN             0x0000
#define PCIM_PSTAT_DATADIV10            0x2000
#define PCIM_PSTAT_DATADIV100           0x4000
#define PCIM_PSTAT_DATADIV1000          0x6000
#define PCIM_PSTAT_DATADIVMASK          0x6000
#define PCIM_PSTAT_PME                  0x8000

#define PCIR_POWER_PMCSR        0x6
#define PCIM_PMCSR_DCLOCK               0x10
#define PCIM_PMCSR_B2SUPP               0x20
#define PCIM_BMCSR_B3SUPP               0x40
#define PCIM_BMCSR_BPCE                 0x80

#define PCIR_POWER_DATA         0x7

/* VPD capability registers */
#define PCIR_VPD_ADDR           0x2
#define PCIR_VPD_DATA           0x4

/* PCI Message Signalled Interrupts (MSI) */
#define PCIR_MSI_CTRL           0x2
#define PCIM_MSICTRL_VECTOR             0x0100
#define PCIM_MSICTRL_64BIT              0x0080
#define PCIM_MSICTRL_MME_MASK           0x0070
#define PCIM_MSICTRL_MME_1              0x0000
#define PCIM_MSICTRL_MME_2              0x0010
#define PCIM_MSICTRL_MME_4              0x0020
#define PCIM_MSICTRL_MME_8              0x0030
#define PCIM_MSICTRL_MME_16             0x0040
#define PCIM_MSICTRL_MME_32             0x0050
#define PCIM_MSICTRL_MMC_MASK           0x000E
#define PCIM_MSICTRL_MMC_1              0x0000
#define PCIM_MSICTRL_MMC_2              0x0002
#define PCIM_MSICTRL_MMC_4              0x0004
#define PCIM_MSICTRL_MMC_8              0x0006
#define PCIM_MSICTRL_MMC_16             0x0008
#define PCIM_MSICTRL_MMC_32             0x000A
#define PCIM_MSICTRL_MSI_ENABLE         0x0001
#define PCIR_MSI_ADDR           0x4
#define PCIR_MSI_ADDR_HIGH      0x8
#define PCIR_MSI_DATA           0x8
#define PCIR_MSI_DATA_64BIT     0xc
#define PCIR_MSI_MASK           0x10
#define PCIR_MSI_PENDING        0x14

/* PCI-X definitions */

/* For header type 0 devices */
#define PCIXR_COMMAND           0x2
#define PCIXM_COMMAND_DPERR_E           0x0001  /* Data Parity Error Recovery */
#define PCIXM_COMMAND_ERO               0x0002  /* Enable Relaxed Ordering */
#define PCIXM_COMMAND_MAX_READ          0x000c  /* Maximum Burst Read Count */
#define PCIXM_COMMAND_MAX_READ_512      0x0000
#define PCIXM_COMMAND_MAX_READ_1024     0x0004
#define PCIXM_COMMAND_MAX_READ_2048     0x0008
#define PCIXM_COMMAND_MAX_READ_4096     0x000c
#define PCIXM_COMMAND_MAX_SPLITS        0x0070  /* Maximum Split Transactions */
#define PCIXM_COMMAND_MAX_SPLITS_1      0x0000
#define PCIXM_COMMAND_MAX_SPLITS_2      0x0010
#define PCIXM_COMMAND_MAX_SPLITS_3      0x0020
#define PCIXM_COMMAND_MAX_SPLITS_4      0x0030
#define PCIXM_COMMAND_MAX_SPLITS_8      0x0040
#define PCIXM_COMMAND_MAX_SPLITS_12     0x0050
#define PCIXM_COMMAND_MAX_SPLITS_16     0x0060
#define PCIXM_COMMAND_MAX_SPLITS_32     0x0070
#define PCIXM_COMMAND_VERSION           0x3000
#define PCIXR_STATUS            0x4
#define PCIXM_STATUS_DEVFN              0x000000FF
#define PCIXM_STATUS_BUS                0x0000FF00
#define PCIXM_STATUS_64BIT              0x00010000
#define PCIXM_STATUS_133CAP             0x00020000
#define PCIXM_STATUS_SC_DISCARDED       0x00040000
#define PCIXM_STATUS_UNEXP_SC           0x00080000
#define PCIXM_STATUS_COMPLEX_DEV        0x00100000
#define PCIXM_STATUS_MAX_READ           0x00600000
#define PCIXM_STATUS_MAX_READ_512       0x00000000
#define PCIXM_STATUS_MAX_READ_1024      0x00200000
#define PCIXM_STATUS_MAX_READ_2048      0x00400000
#define PCIXM_STATUS_MAX_READ_4096      0x00600000
#define PCIXM_STATUS_MAX_SPLITS         0x03800000
#define PCIXM_STATUS_MAX_SPLITS_1       0x00000000
#define PCIXM_STATUS_MAX_SPLITS_2       0x00800000
#define PCIXM_STATUS_MAX_SPLITS_3       0x01000000
#define PCIXM_STATUS_MAX_SPLITS_4       0x01800000
#define PCIXM_STATUS_MAX_SPLITS_8       0x02000000
#define PCIXM_STATUS_MAX_SPLITS_12      0x02800000
#define PCIXM_STATUS_MAX_SPLITS_16      0x03000000
#define PCIXM_STATUS_MAX_SPLITS_32      0x03800000
#define PCIXM_STATUS_MAX_CUM_READ       0x1C000000
#define PCIXM_STATUS_RCVD_SC_ERR        0x20000000
#define PCIXM_STATUS_266CAP             0x40000000
#define PCIXM_STATUS_533CAP             0x80000000

/* For header type 1 devices (PCI-X bridges) */
#define PCIXR_SEC_STATUS        0x2
#define PCIXM_SEC_STATUS_64BIT          0x0001
#define PCIXM_SEC_STATUS_133CAP         0x0002
#define PCIXM_SEC_STATUS_SC_DISC        0x0004
#define PCIXM_SEC_STATUS_UNEXP_SC       0x0008
#define PCIXM_SEC_STATUS_SC_OVERRUN     0x0010
#define PCIXM_SEC_STATUS_SR_DELAYED     0x0020
#define PCIXM_SEC_STATUS_BUS_MODE       0x03c0
#define PCIXM_SEC_STATUS_VERSION        0x3000
#define PCIXM_SEC_STATUS_266CAP         0x4000
#define PCIXM_SEC_STATUS_533CAP         0x8000
#define PCIXR_BRIDGE_STATUS     0x4
#define PCIXM_BRIDGE_STATUS_DEVFN       0x000000FF
#define PCIXM_BRIDGE_STATUS_BUS         0x0000FF00
#define PCIXM_BRIDGE_STATUS_64BIT       0x00010000
#define PCIXM_BRIDGE_STATUS_133CAP      0x00020000
#define PCIXM_BRIDGE_STATUS_SC_DISCARDED 0x00040000
#define PCIXM_BRIDGE_STATUS_UNEXP_SC    0x00080000
#define PCIXM_BRIDGE_STATUS_SC_OVERRUN  0x00100000
#define PCIXM_BRIDGE_STATUS_SR_DELAYED  0x00200000
#define PCIXM_BRIDGE_STATUS_DEVID_MSGCAP 0x20000000
#define PCIXM_BRIDGE_STATUS_266CAP      0x40000000
#define PCIXM_BRIDGE_STATUS_533CAP      0x80000000

/* HT (HyperTransport) Capability definitions */
#define PCIR_HT_COMMAND         0x2
#define PCIM_HTCMD_CAP_MASK             0xf800  /* Capability type. */
#define PCIM_HTCAP_SLAVE                0x0000  /* 000xx */
#define PCIM_HTCAP_HOST                 0x2000  /* 001xx */
#define PCIM_HTCAP_SWITCH               0x4000  /* 01000 */
#define PCIM_HTCAP_INTERRUPT            0x8000  /* 10000 */
#define PCIM_HTCAP_REVISION_ID          0x8800  /* 10001 */
#define PCIM_HTCAP_UNITID_CLUMPING      0x9000  /* 10010 */
#define PCIM_HTCAP_EXT_CONFIG_SPACE     0x9800  /* 10011 */
#define PCIM_HTCAP_ADDRESS_MAPPING      0xa000  /* 10100 */
#define PCIM_HTCAP_MSI_MAPPING          0xa800  /* 10101 */
#define PCIM_HTCAP_DIRECT_ROUTE         0xb000  /* 10110 */
#define PCIM_HTCAP_VCSET                0xb800  /* 10111 */
#define PCIM_HTCAP_RETRY_MODE           0xc000  /* 11000 */
#define PCIM_HTCAP_X86_ENCODING         0xc800  /* 11001 */

/* HT MSI Mapping Capability definitions. */
#define PCIM_HTCMD_MSI_ENABLE           0x0001
#define PCIM_HTCMD_MSI_FIXED            0x0002
#define PCIR_HTMSI_ADDRESS_LO   0x4
#define PCIR_HTMSI_ADDRESS_HI   0x8

/* PCI Vendor capability definitions */
#define PCIR_VENDOR_LENGTH      0x2
#define PCIR_VENDOR_DATA        0x3

/* PCI EHCI Debug Port definitions */
#define PCIR_DEBUG_PORT         0x2
#define PCIM_DEBUG_PORT_OFFSET          0x1FFF
#define PCIM_DEBUG_PORT_BAR             0xe000

/* PCI-PCI Bridge Subvendor definitions */
#define PCIR_SUBVENDCAP_ID      0x4

/* PCI Express definitions */
#define PCIR_EXPRESS_FLAGS      0x2
#define PCIM_EXP_FLAGS_VERSION          0x000F
#define PCIM_EXP_FLAGS_TYPE             0x00F0
#define PCIM_EXP_TYPE_ENDPOINT          0x0000
#define PCIM_EXP_TYPE_LEGACY_ENDPOINT   0x0010
#define PCIM_EXP_TYPE_ROOT_PORT         0x0040
#define PCIM_EXP_TYPE_UPSTREAM_PORT     0x0050
#define PCIM_EXP_TYPE_DOWNSTREAM_PORT   0x0060
#define PCIM_EXP_TYPE_PCI_BRIDGE        0x0070
#define PCIM_EXP_FLAGS_SLOT             0x0100
#define PCIM_EXP_FLAGS_IRQ              0x3e00

/* MSI-X definitions */
#define PCIR_MSIX_CTRL          0x2
#define PCIM_MSIXCTRL_MSIX_ENABLE       0x8000
#define PCIM_MSIXCTRL_FUNCTION_MASK     0x4000
#define PCIM_MSIXCTRL_TABLE_SIZE        0x07FF
#define PCIR_MSIX_TABLE         0x4
#define PCIR_MSIX_PBA           0x8
#define PCIM_MSIX_BIR_MASK              0x7
#define PCIM_MSIX_BIR_BAR_10            0
#define PCIM_MSIX_BIR_BAR_14            1
#define PCIM_MSIX_BIR_BAR_18            2
#define PCIM_MSIX_BIR_BAR_1C            3
#define PCIM_MSIX_BIR_BAR_20            4
#define PCIM_MSIX_BIR_BAR_24            5
#define PCIM_MSIX_VCTRL_MASK            0x1