Documentation/scsi/g_NCR5380.txt

   1 README file for the Linux g_NCR5380 driver.
   2
   3 (c) 1993 Drew Eckhard
   4 NCR53c400 extensions (c) 1994,1995,1996 Kevin Lentin
   5
   6 This file documents the NCR53c400 extensions by Kevin Lentin and some
   7 enhancements to the NCR5380 core.
   8
   9 This driver supports both NCR5380 and NCR53c400 cards in port or memory
  10 mapped modes. Currently this driver can only support one of those mapping
  11 modes at a time but it does support both of these chips at the same time.
  12 The next release of this driver will support port & memory mapped cards at
  13 the same time. It should be able to handle multiple different cards in the
  14 same machine.
  15
  16 The drivers/scsi/Makefile has an override in it for the most common
  17 NCR53c400 card, the Trantor T130B in its default configuration:
  18         Port: 0x350
  19         IRQ : 5
  20
  21 The NCR53c400 does not support DMA but it does have Pseudo-DMA which is
  22 supported by the driver.
  23
  24 This driver provides some information on what it has detected in
  25 /proc/scsi/g_NCR5380/x where x is the scsi card number as detected at boot
  26 time. More info to come in the future.
  27
  28 This driver works as a module.
  29 When included as a module, parameters can be passed on the insmod/modprobe
  30 command line:
  31   irq=xx[,...]  the interrupt(s)
  32   base=xx[,...] the port or base address(es) (for port or memory mapped, resp.)
  33   card=xx[,...] card type(s):
  34                 0 = NCR5380,
  35                 1 = NCR53C400,
  36                 2 = NCR53C400A,
  37                 3 = Domex Technology Corp 3181E (DTC3181E)
  38                 4 = Hewlett Packard C2502
  39
  40 These old-style parameters can support only one card:
  41   ncr_irq=xx   the interrupt
  42   ncr_addr=xx  the port or base address (for port or memory
  43                mapped, resp.)
  44   ncr_5380=1   to set up for a NCR5380 board
  45   ncr_53c400=1 to set up for a NCR53C400 board
  46   ncr_53c400a=1 to set up for a NCR53C400A board
  47   dtc_3181e=1  to set up for a Domex Technology Corp 3181E board
  48   hp_c2502=1   to set up for a Hewlett Packard C2502 board
  49
  50 e.g.
  51 OLD: modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
  52 NEW: modprobe g_NCR5380 irq=5 base=0x350 card=0
  53   for a port mapped NCR5380 board or
  54
  55 OLD: modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
  56 NEW: modprobe g_NCR5380 irq=255 base=0xc8000 card=1
  57   for a memory mapped NCR53C400 board with interrupts disabled or
  58
  59 NEW: modprobe g_NCR5380 irq=0,7 base=0x240,0x300 card=3,4
  60   for two cards: DTC3181 (in non-PnP mode) at 0x240 with no IRQ
  61              and HP C2502 at 0x300 with IRQ 7
  62
  63 (255 should be specified for no or DMA interrupt, 254 to autoprobe for an
  64      IRQ line if overridden on the command line.)
  65
  66
  67 Kevin Lentin
  68 K.Lentin@cs.monash.edu.au