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PCMCIA(4)	       FreeBSD Kernel Interfaces Manual		     PCMCIA(4)

NAME
     pcmcia, pcic -- 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?

     # luna88k
     pcic0   at	cbus? port 0x3e0 iomem 0xd0000 iosiz 0x10000
     pcmcia* at	pcic?

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

     # 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.

   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
	malo(4)	      Marvell Libertas IEEE 802.11b/g 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	ad-
     dress, such as 0xd8000 for	pcic0.	Some experimentation may be required
     to	find a working value; in some cases the	size parameter of the pcic de-
     vice 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.

FreeBSD	13.0		       December	13, 2019		  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | NOTES | SEE ALSO | HISTORY

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