NAME    [Toc]    [Back]

     sti - HP Standard Text Interface

SYNOPSIS    [Toc]    [Back]

     sti* at mainbus0 irq ?
     sti* at phantomas0 irq ?
     wsdisplay*     at sti? console ?

DESCRIPTION    [Toc]    [Back]

     The sti was created by HP to  provide  uniform  frame-buffer
access operations
  for  their  9000/300  and 9000/700 series of workstations.

     The following models are supported (though not all  features
or frame
     buffer depths may be available):

         Model               Bits   Mem   3D   Machines/Cards
         GRX                 8g     2          SGC
         CRX                 8      2          SGC
         Tomcat              8      2          SGC
         Stinger                           8                    2
HP9000/7[12]5/74[257]i
         Artist                            8                    2
HP9000/712/7[12]5/74[38]i
         CRX-24              24     16         SGC
         HCRX-8              8      2          GSC
         HCRX-24             24     16         GSC
         Visualize  EG         16      2           HP  B/C-class,
GSC/PCI

     Implementation consists of a set of functions  burnt  in  to
the PROM on the
     card and providing the following set of functions (see below
for PROM revision
 history on functions supported by particular PROM revision):

     +o   Initialize graphics.
     +o   State management.
     +o    Print  a  character onto the screen using currently selected font.
     +o   Copy a region of the frame-buffer to another location.
     +o   Self testing.
     +o   Exception handling.
     +o   Frame-buffer configuration enquiry.
     +o   Setting colour-map entry.
     +o   DMA parameters.
     +o   Flow control.
     +o   User timing.
     +o   Processing management.
     +o   Miscellaneous utility functions.

     There are two modes for accessing  the  PROM:  ``byte''  and
``word'' mode.
     In  ``byte'' mode each 4-byte word contains only the low-ordered big-endian
 byte of data; i.e., to compose one word of data  4  words
should be read
     and low-ordered bytes of those should be shifted correspondingly.  In
     ``word'' mode each word contains all 4 bytes of valid  data.

     PROM revision history:
     8.02   Original release.
     8.03
            +o   OSF-extended self test (a.k.a fast).
            +o   Restore display.
     8.04
            +o   Implement curr_mon function.
            +o   Graphical boot screen.
            +o   Implement ``block move''.
            +o    Implement  ``set colour-map entry''.  sti Implement word mode.
            +o   Support for multiple monitors.
            +o   Support user_data sti space usage.
            +o   Support for extra memory.
            +o   Support for Windows NT (tm).
            +o   Monitor frequency reference.
            +o   Early console.
            +o   Support added for: PCXL, GSC bus, ROM-less operation.
     8.05
            +o   Interrupt support.
            +o   Report card's power usage.
            +o   Birds of Prey.
            +o   User interrupts.
     8.06
            +o   Multiple fonts.
            +o   Monitor table descriptor strings.
            +o   PCXL2 and PCXU monitor descriptors.
     8.08
            +o   HP-UX 10 support for Visualize FX
            +o   dma_ctrl function added.
            +o   flow_ctrl function added.
            +o   user_timing function added.
     8.09
            +o   Addition changes for Visualize FX due to rearchitecture for
                performance.
            +o   process_mgr function added.
     8.0a   PCXL2 and PCXU dual PCI EPROM map  mode,  implemented
on Visualize
            EG.
     8.0b    Support  for  HP-UX non-implicit locking DMA, implemented on
            Visualize FXE.
     8.0c   sti_util function added  (flashing  under  HP-UX  and
other sideband
            traffic).
     8.0d   Colour frame buffer support.

SEE ALSO    [Toc]    [Back]

     intro(4), phantomas(4), wsdisplay(4)

     Standard    Text    Interface    For    Graphics    Devices,
Hewlett-Packard, Revision
     8.13, March 1, 2000.

HISTORY    [Toc]    [Back]

     The sti driver  was  written  by  Michael  Shalayeff  <mick[email protected]> for
     HPPA port for OpenBSD 2.7.

BUGS    [Toc]    [Back]

     Currently, neither scroll back nor screen blanking functions
are implemented.


OpenBSD      3.6                           May      11,      2001