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#!/bin/rc
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rfork e
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DB=usbdb
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HDR=../lib/usb.h
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subs=`{	grep '^	Cl.*' $HDR |
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		sed -e 's/.*Cl([a-z]+)[ 	]+=[ 	]+([0-9]+).*/-e s.\1,.\2,./' |
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		tr A-Z a-z
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}
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cat<<EOF
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/* machine generated. do not edit */
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#include <u.h>
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#include <libc.h>
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#include <thread.h>
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#include "usb.h"
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#include "usbd.h"
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EOF
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awk '
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/^#|^$/	{ next }
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collect && /^[^ \t]/{
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	collect = 0;
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}
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$0 ~ /^(embed|auto)/{
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	section = $0;
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	collect = 1;
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	next;
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}
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collect {
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	if(section ~ "embed"){
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		printf("extern int %smain(Dev*, int, char**);\n", $1);
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	}
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}
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' $DB
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cat <<EOF
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Devtab devtab[] = {
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	/* device, entrypoint, {csp, csp, csp csp}, vid, did */
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EOF
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awk '
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/^#|^$/	{ next }
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collect && /^[^ \t]/{
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	collect = 0;
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}
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$0 ~ /^(embed|auto)/{
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	section = $0;
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	collect = 1;
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	next;
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}
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collect {
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	printf("	{\"%s\"", $1);
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	if(section ~ "embed"){
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		fns[nfns++] = $1;
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		printf(",\t%smain", $1);
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	} else
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		printf(", nil");
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	printf(",\t{");
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	ncsp = 0;
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	vid="-1";
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	did="-1";
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	args="";
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	for(i = 2; i <= NF; i++)
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		if($i ~ "^args="){
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			sub("args=", "", $i);
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			for(j = i; j <= NF; j++)
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				if(j > i)
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					args = args  " " $j;
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				else
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					args = $j
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		}
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	for(i = 2; i <= NF; i++){
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		if($i ~ "^csp="){
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			ncsp++;
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			sub("csp=", "", $i);
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			printf("%s, ", $i);
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		} else
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		if($i ~ "^subclass="){
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			ncsp++;
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			sub("subclass=", "", $i);
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			printf("DSC|%s, ", $i);
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		} else
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		if($i ~ "^class="){
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			ncsp++;
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			sub("class=", "", $i);
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			printf("DCL|%s, ", $i);
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		} else
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		if($i ~ "^proto="){
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			ncsp++;
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			sub("proto=", "", $i);
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			printf("DPT|%s, ", $i);
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		} else
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		if($i ~ "^vid="){
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			sub("vid=", "", $i);
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			vid=$i
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		} else
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		if($i ~ "did="){
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			sub("did=", "", $i);
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			did=$i
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		}
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	}
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	for(i = ncsp; i < 4; i++)
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		printf("0, ");
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	printf("}, %s, %s, \"%s\"},\n", vid, did, args);
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}
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' $DB | sed $subs
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cat <<EOF
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	{nil, nil,	{0, 0, 0, 0, }, -1, -1, nil},
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};
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/* end of machine generated */
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EOF