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PCMCIA/CardBus (PC Card) server
|
You must be root to start this driver. |
devp-pccard [Card Services options] [ss Socket Services options]...
Neutrino
Card Services Options:
- -a
- The ioport address to be assigned to a PCMCIA card. Use a colon (:)
to separate functions on multi-function cards. E.g.
-a 0x300:0x320,0x340 will assign ioport 0x300 to
function 1 in socket 0 and ioport 0x320 to function 2 in socket 0;
ioport 0x340 will be assigned to function 1 in socket 1.
- -i irq
- The IRQ to be used for status interrupts.
The default is no interrupts — the adapter is polled every second
for status changes (recommended).
- -l
- (“el”) Override PCMCIA IRQ for socket(s). E.g. -l5 will assign
IRQ 5 to the card in socket 0; -l5,7 will assign IRQ5 to the
card in socket 0 and IRQ 7 to the card in socket 1.
- -m
- Memory window address for reading CIS. (Default is 0xd4000)
- -v
- Verbose output for debugging purposes.
- -w
- Force the width for a PCMCIA socket (8 or 16 bits). E.g. -w8
will force an 8-bit width for socket 0; -w16,8 will force
a 16-bit width for socket 0 and an 8-bit width for socket 1. This is
needed by some Ethernet adapters that report themselves as 16-bit, but
work only in 8-bit mode.
- -x index
- Select the PCMCIA configuration index to use. Some PCMCIA cards
have multiple configuration indexes. This option can be used to select
one of them.
Socket Services Options:
- -D Device ID
- Specify the PCI device ID to which devp-pccard
must attach. This option must be used in conjunction
with the -V option.
- -I index
- Specify the PCI index to which devp-pccard
must attach.
- -m
- Map ISA interrupts to PCI bus.
- -n
- Set hardware interrupt routing on PCI bus.
Note: This may not work with some BIOSes.
- -p
- Set the IRQ mode (0 - 3) as follows:
Mode |
Sets |
0 |
Parallel PCI interrupts only |
1 |
Parallel IRQ and parallel PCI interrupts |
2 |
IRQ serialized interrupts and parallel PCI interrupts |
3 |
IRQ and PCI serialized interrupts |
- -r
- Value to set in multi-function routing register (chip specific).
- -V Vendor ID
- Specify the PCI vendor ID to which devp-pccard
must attach. This option must be used in conjunction
with the -D option.
- -v
- Verbosity for socket services.
The devp-pccard server provides support under QNX Neutrino for
PCMCIA and CardBus host adapter chips.
The host adapters chips currently supported are (PCMCIA) Intel 82365,
Cirrus CL-PD67xx, Vadem VG-46x, (CardBus)
TI-11xx, TI-12xx, and TI-14xx,
Ricoh R5C47x, O2 Micro OZ68xx, and Toshiba Topic97.
Other CardBus adapters work only in legacy (PCMCIA) mode.
The server manages host resources (memory windows, I/O ports and IRQs)
and assigns resources to PCMCIA cards as they're inserted. CardBus
resources are managed by the
pci-bios
server, which interfaces to the pccard server.
The devp-pccard server also supports dual-function
PC Cards and assigns separate resources to each function.
The only common resource assigned to dual-function PC Cards is the IRQ.
Utilities are provided to start and stop processes (as cards are
inserted and removed), display server status and display card CIS
(Card Information Structure) data.
The executables involved in PC Card support are:
- devp-pccard
- The server for PCMCIA and CardBus adapters.
- pccard-launch
- A manager that starts and stops processes as cards are inserted
and removed.
- pin
- A utility that displays PC Card information (CIS, status, and so on).
The server manages separate resource pools for memory windows, IRQs and
ports. When a card is installed, the server attempts to satisfy the
card's memory window, IRQ and port requirements by allocating resources
from the various pools. PCMCIA resources must be in the ISA range of
devices, while CardBus resources must be in the PCI range. PC Card resource
pools are created as described below.
CardBus resources are assigned by the
pci-bios
server, as all CardBus devices are considered to be PCI devices.
Some manufacturers' PCI BIOSes allow separate IRQs to be assigned to each
socket on a CardBus adapter, while others allow only a single IRQ for both
sockets.
When a CardBus PC Card is inserted in a socket, devp-pccard
requests the pci-bios server to rescan its bus and allocate
resources to the card.
Start devp-pccard and force the ioports to be used in each socket:
devp-pccard -a 0x300,0x340
Map IRQ interrupts to PCI and use IRQ 10:
devp-pccard -l10 ss -m
pccard-launch,
pci-bios,
pin
Connecting Hardware
in the Neutrino User's Guide
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