code: plan9front

ref: a14f9efa6848f167f54dea3e3823b31dae1461c9
dir: /rc/bin/pci/

#!/bin/rc
# pci [-bv] - dump pci configuration
rfork e
fn verbose {
	if (! test -f /lib/pci)
		echo $0: no /lib/pci >[1=2]
	awk '

	function lower(s) {
		gsub(/A/, "a", s)
		gsub(/B/, "b", s)
		gsub(/C/, "c", s)
		gsub(/D/, "d", s)
		gsub(/E/, "e", s)
		gsub(/F/, "f", s)
		return s
	}
	BEGIN{
		file="/lib/pci"
		FS="\t"
		while(getline <file > 0){
			if(/^[#;]/) continue
			if(/^[0-9A-Fa-f]/){
				vid=$1 #vid=lower($1)
				vendor[vid] = $2
			}
			if(/^	[0-9A-Fa-f]/){
				did=$2 #lower($2)
				id[vid "/" did] = $3
			}
		}
		FS = " "
	}

	{
		print $0
		vid = $4
		sub(/\/.*/, "", vid)
		if(vid in vendor){
			s = vendor[vid]
			if($4 in id)
				s = s " " id[$4]
			print "\t" s
		}
	}
'
}

filter=cat
flagfmt=v,b
args='[vid/did ...]'
if(! ifs=() eval `{aux/getflags $*}){
	aux/usage
	exit usage
}

if(! ~ $#* 0){
	{
		for(i in `{echo $* | tr 'A-Z' 'a-z'})
			echo '- - -' $i
	} | verbose | sed 's:^- - - ::'
	exit ''
}

if(~ $#flagv 1)
	filter=verbose
builtin cd '#$/pci' && grep . `{ls -n | grep ctl} | {
	if (~ $#flagb 1)
		sed /:06/d
	if not
		cat
	} |
	sed '
	s/ctl:/:	/
	t noop
: noop
	s/:	01/:	disk 01/
	s/:	02/:	net  02/
	s/:	03/:	vid  03/
	s/:	04/:	aud  04/
	s/:	05/:	mem  05/
	s/:	06/:	brg  06/
	s/:	07/:	ser  07/
	s/:	08/:	base 08/
	s/:	09/:	inpt 09/
	s/:	0a/:	dock 0a/
	s/:	0b/:	proc 0b/
	s/:	0c\.03/:	usb  0c.03/
	s/:	0c\.05/:	smb  0c.05/
	s/:	0c\.07/:	ipmi 0c.07/
	s/:	0d/:	rad  0d/
	s/:	0e/:	intl  0e/
	s/:	0f/:	sat  0f/
	s/:	10/:	cryp 10/
	s/:	11/:	sigl 11/
	s/:	12/:	exl  12/
	t
	s/	/	---  /
' | $filter