4f9795b9fe
to search for a specific extended capability. If the specified capability is found for the given device, then the function returns success and optionally returns the offset of that capability. If the capability is not found, the function returns an error.
431 lines
13 KiB
C
431 lines
13 KiB
C
/*-
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* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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/*
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* PCIM_xxx: mask to locate subfield in register
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* PCIR_xxx: config register offset
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* PCIC_xxx: device class
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* PCIS_xxx: device subclass
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* PCIP_xxx: device programming interface
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* PCIV_xxx: PCI vendor ID (only required to fixup ancient devices)
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* PCID_xxx: device ID
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* PCIY_xxx: capability identification number
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*/
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/* some PCI bus constants */
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#define PCI_BUSMAX 255
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#define PCI_SLOTMAX 31
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#define PCI_FUNCMAX 7
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#define PCI_REGMAX 255
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#define PCI_MAXHDRTYPE 2
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/* PCI config header registers for all devices */
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#define PCIR_DEVVENDOR 0x00
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#define PCIR_VENDOR 0x00
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#define PCIR_DEVICE 0x02
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#define PCIR_COMMAND 0x04
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#define PCIM_CMD_PORTEN 0x0001
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#define PCIM_CMD_MEMEN 0x0002
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#define PCIM_CMD_BUSMASTEREN 0x0004
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#define PCIM_CMD_SPECIALEN 0x0008
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#define PCIM_CMD_MWRICEN 0x0010
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#define PCIM_CMD_PERRESPEN 0x0040
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#define PCIM_CMD_SERRESPEN 0x0100
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#define PCIM_CMD_BACKTOBACK 0x0200
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#define PCIR_STATUS 0x06
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#define PCIM_STATUS_CAPPRESENT 0x0010
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#define PCIM_STATUS_66CAPABLE 0x0020
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#define PCIM_STATUS_BACKTOBACK 0x0080
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#define PCIM_STATUS_PERRREPORT 0x0100
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#define PCIM_STATUS_SEL_FAST 0x0000
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#define PCIM_STATUS_SEL_MEDIMUM 0x0200
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#define PCIM_STATUS_SEL_SLOW 0x0400
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#define PCIM_STATUS_SEL_MASK 0x0600
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#define PCIM_STATUS_STABORT 0x0800
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#define PCIM_STATUS_RTABORT 0x1000
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#define PCIM_STATUS_RMABORT 0x2000
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#define PCIM_STATUS_SERR 0x4000
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#define PCIM_STATUS_PERR 0x8000
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#define PCIR_REVID 0x08
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#define PCIR_PROGIF 0x09
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#define PCIR_SUBCLASS 0x0a
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#define PCIR_CLASS 0x0b
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#define PCIR_CACHELNSZ 0x0c
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#define PCIR_LATTIMER 0x0d
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#define PCIR_HDRTYPE 0x0e
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#define PCIM_HDRTYPE 0x7f
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#define PCIM_HDRTYPE_NORMAL 0x00
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#define PCIM_HDRTYPE_BRIDGE 0x01
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#define PCIM_HDRTYPE_CARDBUS 0x02
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#define PCIM_MFDEV 0x80
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#define PCIR_BIST 0x0f
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/* Capability Register Offsets */
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#define PCICAP_ID 0x0
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#define PCICAP_NEXTPTR 0x1
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/* Capability Identification Numbers */
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#define PCIY_PMG 0x01 /* PCI Power Management */
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#define PCIY_AGP 0x02 /* AGP */
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#define PCIY_VPD 0x03 /* Vital Product Data */
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#define PCIY_SLOTID 0x04 /* Slot Identification */
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#define PCIY_MSI 0x05 /* Message Signaled Interrupts */
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#define PCIY_CHSWP 0x06 /* CompactPCI Hot Swap */
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#define PCIY_PCIX 0x07 /* PCI-X */
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#define PCIY_HT 0x08 /* HyperTransport */
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#define PCIY_VENDOR 0x09 /* Vendor Unique */
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#define PCIY_DEBUG 0x0a /* Debug port */
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#define PCIY_CRES 0x0b /* CompactPCI central resource control */
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#define PCIY_HOTPLUG 0x0c /* PCI Hot-Plug */
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#define PCIY_AGP8X 0x0e /* AGP 8x */
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#define PCIY_SECDEV 0x0f /* Secure Device */
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#define PCIY_EXPRESS 0x10 /* PCI Express */
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#define PCIY_MSIX 0x11 /* MSI-X */
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/* config registers for header type 0 devices */
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#define PCIR_BARS 0x10
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#define PCIR_BAR(x) (PCIR_BARS + (x) * 4)
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#define PCIR_CIS 0x28
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#define PCIM_CIS_ASI_MASK 0x7
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#define PCIM_CIS_ASI_TUPLE 0
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#define PCIM_CIS_ASI_BAR0 1
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#define PCIM_CIS_ASI_BAR1 2
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#define PCIM_CIS_ASI_BAR2 3
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#define PCIM_CIS_ASI_BAR3 4
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#define PCIM_CIS_ASI_BAR4 5
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#define PCIM_CIS_ASI_BAR5 6
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#define PCIM_CIS_ASI_ROM 7
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#define PCIM_CIS_ADDR_MASK 0x0ffffff8
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#define PCIM_CIS_ROM_MASK 0xf0000000
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#define PCIR_SUBVEND_0 0x2c
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#define PCIR_SUBDEV_0 0x2e
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#define PCIR_BIOS 0x30
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#define PCIM_BIOS_ENABLE 0x01
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#define PCIM_BIOS_ADDR_MASK 0xfffff800
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#define PCIR_CAP_PTR 0x34
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#define PCIR_INTLINE 0x3c
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#define PCIR_INTPIN 0x3d
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#define PCIR_MINGNT 0x3e
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#define PCIR_MAXLAT 0x3f
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/* config registers for header type 1 (PCI-to-PCI bridge) devices */
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#define PCIR_SECSTAT_1 0x1e
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#define PCIR_PRIBUS_1 0x18
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#define PCIR_SECBUS_1 0x19
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#define PCIR_SUBBUS_1 0x1a
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#define PCIR_SECLAT_1 0x1b
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#define PCIR_IOBASEL_1 0x1c
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#define PCIR_IOLIMITL_1 0x1d
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#define PCIR_IOBASEH_1 0x30
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#define PCIR_IOLIMITH_1 0x32
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#define PCIM_BRIO_16 0x0
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#define PCIM_BRIO_32 0x1
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#define PCIM_BRIO_MASK 0xf
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#define PCIR_MEMBASE_1 0x20
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#define PCIR_MEMLIMIT_1 0x22
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#define PCIR_PMBASEL_1 0x24
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#define PCIR_PMLIMITL_1 0x26
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#define PCIR_PMBASEH_1 0x28
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#define PCIR_PMLIMITH_1 0x2c
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#define PCIR_BRIDGECTL_1 0x3e
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#define PCIR_SUBVEND_1 0x34
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#define PCIR_SUBDEV_1 0x36
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/* config registers for header type 2 (CardBus) devices */
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#define PCIR_CAP_PTR_2 0x14
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#define PCIR_SECSTAT_2 0x16
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#define PCIR_PRIBUS_2 0x18
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#define PCIR_SECBUS_2 0x19
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#define PCIR_SUBBUS_2 0x1a
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#define PCIR_SECLAT_2 0x1b
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#define PCIR_MEMBASE0_2 0x1c
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#define PCIR_MEMLIMIT0_2 0x20
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#define PCIR_MEMBASE1_2 0x24
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#define PCIR_MEMLIMIT1_2 0x28
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#define PCIR_IOBASE0_2 0x2c
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#define PCIR_IOLIMIT0_2 0x30
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#define PCIR_IOBASE1_2 0x34
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#define PCIR_IOLIMIT1_2 0x38
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#define PCIR_BRIDGECTL_2 0x3e
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#define PCIR_SUBVEND_2 0x40
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#define PCIR_SUBDEV_2 0x42
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#define PCIR_PCCARDIF_2 0x44
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/* PCI device class, subclass and programming interface definitions */
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#define PCIC_OLD 0x00
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#define PCIS_OLD_NONVGA 0x00
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#define PCIS_OLD_VGA 0x01
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#define PCIC_STORAGE 0x01
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#define PCIS_STORAGE_SCSI 0x00
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#define PCIS_STORAGE_IDE 0x01
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#define PCIP_STORAGE_IDE_MODEPRIM 0x01
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#define PCIP_STORAGE_IDE_PROGINDPRIM 0x02
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#define PCIP_STORAGE_IDE_MODESEC 0x04
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#define PCIP_STORAGE_IDE_PROGINDSEC 0x08
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#define PCIP_STORAGE_IDE_MASTERDEV 0x80
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#define PCIS_STORAGE_FLOPPY 0x02
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#define PCIS_STORAGE_IPI 0x03
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#define PCIS_STORAGE_RAID 0x04
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#define PCIS_STORAGE_OTHER 0x80
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#define PCIC_NETWORK 0x02
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#define PCIS_NETWORK_ETHERNET 0x00
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#define PCIS_NETWORK_TOKENRING 0x01
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#define PCIS_NETWORK_FDDI 0x02
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#define PCIS_NETWORK_ATM 0x03
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#define PCIS_NETWORK_ISDN 0x04
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#define PCIS_NETWORK_OTHER 0x80
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#define PCIC_DISPLAY 0x03
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#define PCIS_DISPLAY_VGA 0x00
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#define PCIS_DISPLAY_XGA 0x01
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#define PCIS_DISPLAY_3D 0x02
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#define PCIS_DISPLAY_OTHER 0x80
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#define PCIC_MULTIMEDIA 0x04
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#define PCIS_MULTIMEDIA_VIDEO 0x00
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#define PCIS_MULTIMEDIA_AUDIO 0x01
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#define PCIS_MULTIMEDIA_TELE 0x02
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#define PCIS_MULTIMEDIA_OTHER 0x80
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#define PCIC_MEMORY 0x05
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#define PCIS_MEMORY_RAM 0x00
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#define PCIS_MEMORY_FLASH 0x01
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#define PCIS_MEMORY_OTHER 0x80
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#define PCIC_BRIDGE 0x06
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#define PCIS_BRIDGE_HOST 0x00
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#define PCIS_BRIDGE_ISA 0x01
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#define PCIS_BRIDGE_EISA 0x02
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#define PCIS_BRIDGE_MCA 0x03
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#define PCIS_BRIDGE_PCI 0x04
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#define PCIS_BRIDGE_PCMCIA 0x05
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#define PCIS_BRIDGE_NUBUS 0x06
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#define PCIS_BRIDGE_CARDBUS 0x07
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#define PCIS_BRIDGE_RACEWAY 0x08
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#define PCIS_BRIDGE_OTHER 0x80
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#define PCIC_SIMPLECOMM 0x07
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#define PCIS_SIMPLECOMM_UART 0x00
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#define PCIP_SIMPLECOMM_UART_16550A 0x02
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#define PCIS_SIMPLECOMM_PAR 0x01
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#define PCIS_SIMPLECOMM_MULSER 0x02
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#define PCIS_SIMPLECOMM_MODEM 0x03
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#define PCIS_SIMPLECOMM_OTHER 0x80
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#define PCIC_BASEPERIPH 0x08
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#define PCIS_BASEPERIPH_PIC 0x00
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#define PCIS_BASEPERIPH_DMA 0x01
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#define PCIS_BASEPERIPH_TIMER 0x02
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#define PCIS_BASEPERIPH_RTC 0x03
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#define PCIS_BASEPERIPH_PCIHOT 0x04
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#define PCIS_BASEPERIPH_OTHER 0x80
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#define PCIC_INPUTDEV 0x09
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#define PCIS_INPUTDEV_KEYBOARD 0x00
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#define PCIS_INPUTDEV_DIGITIZER 0x01
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#define PCIS_INPUTDEV_MOUSE 0x02
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#define PCIS_INPUTDEV_SCANNER 0x03
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#define PCIS_INPUTDEV_GAMEPORT 0x04
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#define PCIS_INPUTDEV_OTHER 0x80
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#define PCIC_DOCKING 0x0a
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#define PCIS_DOCKING_GENERIC 0x00
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#define PCIS_DOCKING_OTHER 0x80
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#define PCIC_PROCESSOR 0x0b
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#define PCIS_PROCESSOR_386 0x00
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#define PCIS_PROCESSOR_486 0x01
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#define PCIS_PROCESSOR_PENTIUM 0x02
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#define PCIS_PROCESSOR_ALPHA 0x10
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#define PCIS_PROCESSOR_POWERPC 0x20
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#define PCIS_PROCESSOR_MIPS 0x30
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#define PCIS_PROCESSOR_COPROC 0x40
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#define PCIC_SERIALBUS 0x0c
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#define PCIS_SERIALBUS_FW 0x00
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#define PCIS_SERIALBUS_ACCESS 0x01
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#define PCIS_SERIALBUS_SSA 0x02
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#define PCIS_SERIALBUS_USB 0x03
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#define PCIP_SERIALBUS_USB_UHCI 0x00
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#define PCIP_SERIALBUS_USB_OHCI 0x10
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#define PCIP_SERIALBUS_USB_EHCI 0x20
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#define PCIS_SERIALBUS_FC 0x04
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#define PCIS_SERIALBUS_SMBUS 0x05
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#define PCIC_WIRELESS 0x0d
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#define PCIS_WIRELESS_IRDA 0x00
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#define PCIS_WIRELESS_IR 0x01
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#define PCIS_WIRELESS_RF 0x10
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#define PCIS_WIRELESS_OTHER 0x80
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#define PCIC_INTELLIIO 0x0e
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#define PCIS_INTELLIIO_I2O 0x00
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#define PCIC_SATCOM 0x0f
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#define PCIS_SATCOM_TV 0x01
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#define PCIS_SATCOM_AUDIO 0x02
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#define PCIS_SATCOM_VOICE 0x03
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#define PCIS_SATCOM_DATA 0x04
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#define PCIC_CRYPTO 0x10
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#define PCIS_CRYPTO_NETCOMP 0x00
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#define PCIS_CRYPTO_ENTERTAIN 0x10
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#define PCIS_CRYPTO_OTHER 0x80
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#define PCIC_DASP 0x11
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#define PCIS_DASP_DPIO 0x00
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#define PCIS_DASP_OTHER 0x80
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#define PCIC_OTHER 0xff
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/* Bridge Control Values. */
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#define PCIB_BCR_PERR_ENABLE 0x0001
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#define PCIB_BCR_SERR_ENABLE 0x0002
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#define PCIB_BCR_ISA_ENABLE 0x0004
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#define PCIB_BCR_VGA_ENABLE 0x0008
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#define PCIB_BCR_MASTER_ABORT_MODE 0x0020
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#define PCIB_BCR_SECBUS_RESET 0x0040
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#define PCIB_BCR_SECBUS_BACKTOBACK 0x0080
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#define PCIB_BCR_PRI_DISCARD_TIMEOUT 0x0100
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#define PCIB_BCR_SEC_DISCARD_TIMEOUT 0x0200
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#define PCIB_BCR_DISCARD_TIMER_STATUS 0x0400
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#define PCIB_BCR_DISCARD_TIMER_SERREN 0x0800
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/* PCI power manangement */
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#define PCIR_POWER_CAP 0x2
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#define PCIM_PCAP_SPEC 0x0007
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#define PCIM_PCAP_PMEREQCLK 0x0008
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#define PCIM_PCAP_PMEREQPWR 0x0010
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#define PCIM_PCAP_DEVSPECINIT 0x0020
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#define PCIM_PCAP_DYNCLOCK 0x0040
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#define PCIM_PCAP_SECCLOCK 0x00c0
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#define PCIM_PCAP_CLOCKMASK 0x00c0
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#define PCIM_PCAP_REQFULLCLOCK 0x0100
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#define PCIM_PCAP_D1SUPP 0x0200
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#define PCIM_PCAP_D2SUPP 0x0400
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#define PCIM_PCAP_D0PME 0x1000
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#define PCIM_PCAP_D1PME 0x2000
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#define PCIM_PCAP_D2PME 0x4000
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#define PCIR_POWER_STATUS 0x4
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#define PCIM_PSTAT_D0 0x0000
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#define PCIM_PSTAT_D1 0x0001
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#define PCIM_PSTAT_D2 0x0002
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#define PCIM_PSTAT_D3 0x0003
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#define PCIM_PSTAT_DMASK 0x0003
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#define PCIM_PSTAT_REPENABLE 0x0010
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#define PCIM_PSTAT_PMEENABLE 0x0100
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#define PCIM_PSTAT_D0POWER 0x0000
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#define PCIM_PSTAT_D1POWER 0x0200
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#define PCIM_PSTAT_D2POWER 0x0400
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#define PCIM_PSTAT_D3POWER 0x0600
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#define PCIM_PSTAT_D0HEAT 0x0800
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#define PCIM_PSTAT_D1HEAT 0x1000
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#define PCIM_PSTAT_D2HEAT 0x1200
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#define PCIM_PSTAT_D3HEAT 0x1400
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#define PCIM_PSTAT_DATAUNKN 0x0000
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#define PCIM_PSTAT_DATADIV10 0x2000
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#define PCIM_PSTAT_DATADIV100 0x4000
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#define PCIM_PSTAT_DATADIV1000 0x6000
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#define PCIM_PSTAT_DATADIVMASK 0x6000
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#define PCIM_PSTAT_PME 0x8000
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#define PCIR_POWER_PMCSR 0x6
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#define PCIM_PMCSR_DCLOCK 0x10
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#define PCIM_PMCSR_B2SUPP 0x20
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#define PCIM_BMCSR_B3SUPP 0x40
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#define PCIM_BMCSR_BPCE 0x80
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#define PCIR_POWER_DATA 0x7
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/* PCI Message Signalled Interrupts (MSI) */
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#define PCIR_MSI_CTRL 0x2
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#define PCIM_MSICTRL_VECTOR 0x0100
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#define PCIM_MSICTRL_64BIT 0x0080
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#define PCIM_MSICTRL_MME_MASK 0x0070
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#define PCIM_MSICTRL_MME_1 0x0000
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#define PCIM_MSICTRL_MME_2 0x0010
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#define PCIM_MSICTRL_MME_4 0x0020
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#define PCIM_MSICTRL_MME_8 0x0030
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#define PCIM_MSICTRL_MME_16 0x0040
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#define PCIM_MSICTRL_MME_32 0x0050
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#define PCIM_MSICTRL_MMC_MASK 0x000E
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#define PCIM_MSICTRL_MMC_1 0x0000
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#define PCIM_MSICTRL_MMC_2 0x0002
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#define PCIM_MSICTRL_MMC_4 0x0004
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#define PCIM_MSICTRL_MMC_8 0x0006
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#define PCIM_MSICTRL_MMC_16 0x0008
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#define PCIM_MSICTRL_MMC_32 0x000A
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#define PCIM_MSICTRL_MSI_ENABLE 0x0001
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#define PCIR_MSI_ADDR 0x4
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#define PCIR_MSI_ADDR_HIGH 0x8
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#define PCIR_MSI_DATA 0x8
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#define PCIR_MSI_DATA_64BIT 0xc
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#define PCIR_MSI_MASK 0x10
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#define PCIR_MSI_PENDING 0x14
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/* PCI-X definitions */
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#define PCIXR_COMMAND 0x96
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#define PCIXR_DEVADDR 0x98
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#define PCIXM_DEVADDR_FNUM 0x0003 /* Function Number */
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#define PCIXM_DEVADDR_DNUM 0x00F8 /* Device Number */
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#define PCIXM_DEVADDR_BNUM 0xFF00 /* Bus Number */
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#define PCIXR_STATUS 0x9A
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#define PCIXM_STATUS_64BIT 0x0001 /* Active 64bit connection to device. */
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#define PCIXM_STATUS_133CAP 0x0002 /* Device is 133MHz capable */
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#define PCIXM_STATUS_SCDISC 0x0004 /* Split Completion Discarded */
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#define PCIXM_STATUS_UNEXPSC 0x0008 /* Unexpected Split Completion */
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#define PCIXM_STATUS_CMPLEXDEV 0x0010 /* Device Complexity (set == bridge) */
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#define PCIXM_STATUS_MAXMRDBC 0x0060 /* Maximum Burst Read Count */
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#define PCIXM_STATUS_MAXSPLITS 0x0380 /* Maximum Split Transactions */
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#define PCIXM_STATUS_MAXCRDS 0x1C00 /* Maximum Cumulative Read Size */
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#define PCIXM_STATUS_RCVDSCEM 0x2000 /* Received a Split Comp w/Error msg */
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