NAME
pcmcia —
introduction to PCMCIA (PC Card)
support
SYNOPSIS
pcmcia* at pcic? controller ? socket ?
pcmcia* at tcic? controller ? socket ?
pcmcia* at cardslot?
options PCMCIAVERBOSE
amiga
pcmcia* at pccard0
hpcmips
pcmcia* at it8368e? controller ? socket ?
pcmcia* at plumpcmcia? controller ? socket ?
hpcsh
pcmcia* at hd64461pcmcia? controller ? socket
?
sh3
pcmcia* at shpcic? controller ? socket
?
sparc
pcmcia* at nell?
DESCRIPTION
NetBSD provides machine-independent bus support and drivers for PCMCIA (Personal Computer Memory Card International Association) a.k.a. PC Card, CardBus devices.HARDWARE
NetBSD includes the following machine-independent PCMCIA drivers, sorted by function and driver name:
Serial interfaces and modems
- com
- 8250/16450/16550-compatible PCMCIA serial cards and modems.
Network interfaces
- an
- Aironet 4500/4800 and Cisco 340 series 802.11 controller.
- awi
- 802.11 controller based on the AMD PCnetMobile chipset.
- cnw
- Netwave AirSurfer Wireless LAN interface.
- ep
- 3Com 3c589 EtherLink III Ethernet card.
- mbe
- Ethernet card based on the Fujitsu MB86960A/MB86965A chipset.
- mhzc
- Megahertz Ethernet/Modem combo cards
- ne
- NE2000 compatible cards.
- ray
- Raytheon Raylink and WebGear Aviator2.4 802.11 controller.
- sm
- Megahertz Ethernet card.
- wi
- Lucent WaveLAN/IEEE and PRISM-II based 802.11 controller.
- xi
- Xircom CreditCard Ethernet
SCSI controllers
- aic
- Adaptec APA-1460 SCSI controller card.
- esp
- NCR 53C9x, Emulex ESP406, and Qlogic FAS408 SCSI controllers.
- spc
- Fujitsu MB87030/MB89352 SCSI controllers.
IDE controllers
- wdc
- Digital Hinote Ultra Mobile Media Adapter
Bluetooth devices
- bt3c
- 3Com 3CRWB6096 Bluetooth PC Card driver.
- btbc
- AnyCom Bluetooth BlueCard driver.
USB Controller
- slhci
- Cypress/ScanLogic SL811HS USB Host Controller driver.
SEE ALSO
aic(4), an(4), awi(4), bt3c(4), btbc(4), cardbus(4), cnw(4), com(4), ep(4), esp(4), intro(4), isa(4), mbe(4), mhzc(4), ne(4), options(4), pcic(4), pcmcom(4), ray(4), slhci(4), sm(4), spc(4), tcic(4), wi(4), xi(4)
HISTORY
The pcmcia driver appeared in
NetBSD 1.3.
BUGS
IO space conflicts
NetBSD probes the PCMCIA IO bus width and uses that information to decide where to map PCMCIA IO space. For 10-bit wide cards, 0x300-0x3ff is used. For 12-bit wide cards, 0x400-0x4ff is used.
Neither choice is perfect. In the 12-bit case, 0x400 appears to
work in substantially more devices than 0x300. In the event that PCMCIA
devices are mapped in 0x400-0x4ff and appear to be nonfunctional, remapping
to 0x300-0x3ff may be appropriate; consult options
PCIC_ISA_ALLOC_IOBASE and options
PCIC_ISA_ALLOC_IOSIZE in
options(4). Example:
# Avoid PCMCIA bus space conflicts with the default IO space # allocation on 12-bit wide busses (base 0x300 size 0xff). options PCIC_ISA_ALLOC_IOBASE=0x300 options PCIC_ISA_ALLOC_IOSIZE=0x0ff
Interrupt conflicts
NetBSD attempts to probe for available
interrupts to assign to PCMCIA devices. In some cases, it is not possible to
detect all interrupts in use; in such cases, use of options
PCIC_ISA_INTR_ALLOC_MASK may be necessary. See
options(4).
Unconfigured devices
During autoconfiguration, if a message is displayed saying that
your card is "not configured" it indicates that there isn't
support for your card compiled into the kernel. To fix this problem, it may
simply be a matter of adding the manufacturer and product IDs to the PCMCIA
database or adding a front-end attachment to an existing driver. In the
latter case, it is normally always necessary to get a dump of the CIS table
from the card. You can do this by adding options
PCMCIACISDEBUG and options PCMCIADEBUG into
your kernel config file. Additionally, you will have to patch the kernel to
enable run-time debugging. This can be done in the source by changing the
variables pcmcia_debug and
pcmciacis_debug to 0xff. Alternatively, you can patch
the same variables at run-time using
ddb(4). For most drivers you should also consider enabling any
driver-specific debugging options.