PCMCIA(4)                 OpenBSD Programmer's Manual                PCMCIA(4)

NAME
     pcmcia - introduction to PCMCIA (PC Card) support

SYNOPSIS
     # i386
     pcic0   at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
     pcic1   at isa? port 0x3e2 iomem 0xe0000 iosiz 0x4000
     pcic2   at isa? port 0x3e4 iomem 0xe0000 iosiz 0x4000
     pcic*   at isapnp?
     pcic*   at pci? dev?
     pcmcia* at pcic?

     # i386
     tcic0   at isa? port 0x240 iomem 0xd0000 iosiz 0x10000
     pcmcia* at tcic?

     # sparc
     tslot*  at sbus?
     pcmcia* at tslot?

     # sparc/sparc64
     stp*    at sbus?
     pcmcia* at stp?

     # zaurus
     pxapcic0 at pxaip?
     pcmcia*  at pxapcic?

     # all architectures
     cbb*      at pci?
     cardslot* at cbb? flags 0x0000
     pcmcia*   at cardslot?

DESCRIPTION
     The pcmcia subsystem provides machine-independent bus support and drivers
     for PCMCIA (PC Card) devices.

     OpenBSD provides support for the following devices.  Note that not all
     architectures support all devices.

   Miscellaneous
        gpr(4)        GemPlus GPR400 smartcard reader

   Serial interfaces and modems
        com(4)        serial communications interface

   Wired network interfaces
        ep(4)         3Com EtherLink III and Fast EtherLink III 10/100 Ether-
                      net device
        ne(4)         NE2000 and compatible 10/100 Ethernet device
        sm(4)         SMC91C9x and SMC91C1xx-based 10/100 Ethernet device
        xe(4)         Xircom-based 16-bit PCMCIA 10/100 Ethernet device

   Wireless network interfaces
        an(4)         Aironet Communications 4500/4800 IEEE 802.11FH/b wire-
                      less network device
        cnw(4)        Xircom CreditCard Netwave wireless network device
        malo(4)       Marvell Libertas IEEE 802.11b/g wireless network device
        ray(4)        Raytheon Raylink/WebGear Aviator IEEE 802.11FH wireless
                      network device
        wi(4)         WaveLAN/IEEE, PRISM 2-3, and Spectrum24 IEEE 802.11b
                      wireless network device

   SCSI controllers
        aic(4)        Adaptec AIC-6260 and AIC-6360 SCSI interface

   IDE controllers
        wdc(4)        WD100x compatible hard disk controller driver

     The supported PCMCIA controllers are those that are i82365 compatible.

NOTES
     On some pcmcia adapters, for instance the sbus(4)-based stp(4), the
     pcmcia bus will be mapped in big-endian format instead of the natural
     (and preferred) little endian format.  Unfortunately such controllers
     lack the hardware facility to swap bytes, and it is not efficient to con-
     vert all drivers to always know about this.  While 8 bit drivers can in-
     visibly work on such a bus, 16 bit drivers will need modification to han-
     dle this.  So far, wi(4) is the only driver to require these modifica-
     tions.

     If the pcmcia adapter is not detected, or if pcmcia events (such as card
     insertion) do not occur, there may be a PCI card BIOS mapped in the same
     memory space the pcmcia driver is configured to use (this is often the
     case with Ethernet card boot ROMs).  The output from dmesg(8) should con-
     tain a line beginning with ``bios0'' that lists the memory address and
     size of mapped regions.  If there is a conflict, you can use
     boot_config(8) to change the iomem parameter of the pcic device to a non-
     overlapping address, such as 0xd8000 for pcic0.  Some experimentation may
     be required to find a working value; in some cases the size parameter of
     the pcic device may need to be decreased to avoid a conflict.

SEE ALSO
     cardbus(4), intro(4), isa(4)

HISTORY
     The pcmcia driver appeared in OpenBSD 2.3.

OpenBSD 4.7                      June 26, 2008                               2
