206 lines
4.4 KiB
Forth
206 lines
4.4 KiB
Forth
\ Copyright (c) 2000 Daniel C. Sobral <dcs@FreeBSD.org>
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\ All rights reserved.
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\
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\ Redistribution and use in source and binary forms, with or without
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\ modification, are permitted provided that the following conditions
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\ are met:
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\ 1. Redistributions of source code must retain the above copyright
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\ notice, this list of conditions and the following disclaimer.
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\ 2. Redistributions in binary form must reproduce the above copyright
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\ notice, this list of conditions and the following disclaimer in the
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\ documentation and/or other materials provided with the distribution.
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\
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\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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\ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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\ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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\ SUCH DAMAGE.
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\
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\ $FreeBSD$
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\ The following pnp code is used in pnp.4th and pnp.c
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structure: STAILQ_HEAD
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ptr stqh_first \ type*
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ptr stqh_last \ type**
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;structure
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structure: STAILQ_ENTRY
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ptr stqe_next \ type*
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;structure
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structure: pnphandler
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ptr pnph.name
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ptr pnph.enumerate
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;structure
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structure: pnpident
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ptr pnpid.ident \ char*
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sizeof STAILQ_ENTRY cells member: pnpid.link \ pnpident
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;structure
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structure: pnpinfo \ sync with stand/common/bootstrap.h
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ptr pnpi.desc
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int pnpi.revision
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ptr pnpi.module \ (char*) module args
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int pnpi.argc
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ptr pnpi.argv
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ptr pnpi.handler \ pnphandler
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sizeof STAILQ_HEAD member: pnpi.ident \ pnpident
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sizeof STAILQ_ENTRY member: pnpi.link \ pnpinfo
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;structure
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\ end of pnp support
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pnpdevices drop
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: enumerate
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pnphandlers begin
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dup @
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while
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." Probing " dup @ pnph.name @ dup strlen type ." ..." cr
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0 over @ pnph.enumerate @ ccall drop
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cell+
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repeat
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;
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: summary
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." PNP scan summary:" cr
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pnpdevices stqh_first @
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begin
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dup
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while
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dup pnpi.ident stqh_first @ pnpid.ident @ dup strlen type
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dup pnpi.desc @ ?dup if
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." : "
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dup strlen type
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then
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cr
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pnpi.link stqe_next @
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repeat
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drop
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;
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: compare-pnpid ( addr addr' -- flag )
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begin
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over c@ over c@ <> if drop drop false exit then
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over c@ over c@ and
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while
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char+ swap char+ swap
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repeat
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c@ swap c@ or 0=
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;
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: search-pnpid ( id -- flag )
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>r
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pnpdevices stqh_first @
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begin ( pnpinfo )
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dup
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while
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dup pnpi.ident stqh_first @
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begin ( pnpinfo pnpident )
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dup pnpid.ident @ r@ compare-pnpid
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if
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r> drop
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\ XXX Temporary debugging message
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." Found " pnpid.ident @ dup strlen type
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pnpi.desc @ ?dup if
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." : " dup strlen type
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then cr
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\ drop drop
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true
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exit
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then
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pnpid.link stqe_next @
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?dup 0=
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until
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pnpi.link stqe_next @
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repeat
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r> drop
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drop
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false
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;
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: skip-space ( addr -- addr' )
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begin
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dup c@ bl =
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over c@ 9 = or
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while
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char+
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repeat
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;
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: skip-to-space ( addr -- addr' )
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begin
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dup c@ bl <>
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over c@ 9 <> and
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over c@ and
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while
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char+
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repeat
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;
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: premature-end? ( addr -- addr flag )
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postpone dup postpone c@ postpone 0=
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postpone if postpone exit postpone then
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; immediate
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0 value filename
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0 value timestamp
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0 value id
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only forth also support-functions
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: (load) load ;
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: check-pnpid ( -- )
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line_buffer .addr @
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\ Search for filename
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skip-space premature-end?
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dup to filename
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\ Search for end of filename
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skip-to-space premature-end?
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0 over c! char+
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\ Search for timestamp
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skip-space premature-end?
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dup to timestamp
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skip-to-space premature-end?
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0 over c! char+
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\ Search for ids
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begin
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skip-space premature-end?
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dup to id
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skip-to-space dup c@ >r
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0 over c! char+
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id search-pnpid if
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filename dup strlen 1 ['] (load) catch if
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drop drop drop
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." Error loading " filename dup strlen type cr
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then
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r> drop exit
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then
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r> 0=
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until
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;
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: load-pnp
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0 to end_of_file?
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reset_line_reading
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s" /boot/pnpid.conf" O_RDONLY fopen fd !
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fd @ -1 <> if
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begin
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end_of_file? 0=
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while
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read_line
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check-pnpid
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repeat
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fd @ fclose
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then
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;
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