wesc(4) - NetBSD Manual Pages

WESC(4)              NetBSD/amiga Kernel Interfaces Manual             WESC(4)


NAME

     wesc -- Warp Engine low level SCSI interface


SYNOPSIS

     wesc0 at zbus0


DESCRIPTION

     The Amiga architecture uses a common machine independent scsi sub-system
     provided in the kernel source.  The machine independent drivers that use
     this code access the hardware through a common interface. (see
     scsibus(4)) This common interface interacts with a machine dependent
     interface, such as wesc, which then handles the hardware specific issues.

     The wesc interface handles things such as DMA and interrupts as well as
     actually sending commands, negotiating synchronous or asynchronous trans-
     fers and handling disconnect/reconnect of SCSI targets.  The hardware
     that wesc uses is based on the NCR53c710 SCSI chip.


HARDWARE

     The wesc interface supports the following Zorro III expansion cards:

           WARP ENGINE  MacroSystem Development Warp Engine internal SCSI,
                        manufacturer 2203, product 19


DIAGNOSTICS

     wesc%s: abort %s: dstat %02x, sstat0 %02x sbcl %02x  The scsi operation
     %s was aborted due to error.  Dstat, sstat and sbcl are registers within
     the NCR53c710 SCSI chip.

     siop id %d reset  The NCR53c710 SCSI chip has been reset and configure at
     id %d.

     SIOP interrupt: %x sts %x msg %x sbcl %x  The NCR53c710 SCSI chip has
     interrupted unexpectedly.

     SIOP: SCSI Gross Error  The NCR53c710 SCSI chip has indicated that it is
     confused.

     SIOP: Parity Error  The NCR53c710 SCSI chip has indicated that it has
     detected a parity error on the SCSI bus.


SEE ALSO

     scsibus(4)


HISTORY

     The wesc interface first appeared in NetBSD 1.0

NetBSD 10.99                    August 31, 1994                   NetBSD 10.99