TOSH1800-SMCINIT(8)                                        Linux IrDA                                        TOSH1800-SMCINIT(8)



NAME
       tosh1800-smcinit - initialize the IrDA controler on Toshiba laptops

SYNOPSIS
       tosh1800-smcinit [OPTION]

DESCRIPTION
       IrDA  configurator  for  laptops  with  ALI1533 bridge (LPC47N227 SuperIO), smc-ircc and not initializing BIOS (tested on
       Toshiba Satellite 1800-514, Toshiba Satellite 5100 and Toshiba Tecra 9100) to be used with Linux kernel.

       Toshiba Satellite 1800 laptops are provided with a SMCS LPC47N227 SuperIO chip which is IrDA SIR/FIR capable.   The  chip
       is  connected  through  an  ALI1533  PCI-ISA bridge.  The IrDA subsystem of the SuperIO chip is supported by the smc-ircc
       Linux kernel module.  Unfortunately the BIOS neither configurates the SuperIO chip IrDA subsystem (SIR  port,  FIR  port,
       dma,  irq,  IrDA  mode,  power) nor sets the PCI-ISA bridge to decode any usable port.  Linux kernel is thus prevented to
       detect the second UART making impossible to use it in SIR mode. For the same reason, the FIR mode  smc-ircc  is  able  to
       detect the SuperIO chip but, once found the IrDA subsystem unconfigured, fails to install.

       tosh1800-smcinit  sets  SIR  and  FIR ioport addresses, DMA and IRQ of the SuperIO chip IrDA subsystem then powers on the
       second UART. It also configures the PCI-ISA bridge to decode SIR and FIR ports.  All this configuration  work  should  be
       rather  done  into  the  kernel but it was more practical and safe to make a small testing tool of it. It can be probably
       extended to include configuration kludges for other similar SuperIO and ISA bridge combination.

       Testing was carried on a Toshiba Satellite 1800-514 with Linux kernel 2.4.17.  I hope this work could be helpful, it  was
       quite funny to do it however.

OPTIONS
       -a, --skip-decoding-cfg
              Skip ISA bridge decoding configuration.

       -b, --skip-smc-ircc-cfg
              Skip SMC-IRCC configuration.

       -v, --vendor=VALUE
              Look for the specified ISA bridge PCI vendor ID

       -x, --device=VALUE
              Look for the specified ISA bridge PCI device ID

       -c, --cfgbase=VALUE
              Set SMC-IRCC IO cfgbase address. Usual value can be 0x2e.

       -s, --sirbase=VALUE
              Set SMC-IRCC IO sirbase address. Usual value can be 0x2e8.

       -f, --firbase=VALUE
              Set SMC-IRCC IO firbase address. Usual value can be 0x2f8.

       -m, --dma=VALUE
              Set SMC-IRCC DMA channel. Usual value can be 3.

       -i, --irq=VALUE
              Set SMC-IRCC IRQ. Usual value can be 7.

       -p, --print
              Print ISA bridge configuration.

       -V, --version
              Show program version.

       -h, --help
              Show program options.

AUTHOR
       This program was made by Daniele Peri <periATcsai.it>

CREDITS
       SMSC for the downloadable datasheets

       Paul Hampson for its Linux IrDA mailing list messages.

       Manual page written by Claudiu Costin <claudiucATkde.org>. Documentation based on original README by Daniele Peri.

SEE ALSO
       irattach(1),
       irdadump(1),
       http://lancelot.csai.unipa.it/~peri/ Daniele Peri's home page,
       http://irda.sourceforge.net/smcinit/ the SMCINIT package home page.




0.3                                                         July 2003                                        TOSH1800-SMCINIT(8)