blob: edb9110134033bc8b3f026c17231a26cf42b9571 [file] [log] [blame]
/*
* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005, 2008.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
%option noyywrap nounput noinput
%x INCLUDE
%x BYTESTRING
%x PROPNODENAME
PROPNODECHAR [a-zA-Z0-9,._+*#?@-]
PATHCHAR ({PROPNODECHAR}|[/])
LABEL [a-zA-Z_][a-zA-Z0-9_]*
STRING \"([^\\"]|\\.)*\"
WS [[:space:]]
COMMENT "/*"([^*]|\*+[^*/])*\*+"/"
LINECOMMENT "//".*\n
GAP ({WS}|{COMMENT}|{LINECOMMENT})*
%{
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <errno.h>
#include <assert.h>
#include <fnmatch.h>
#include "srcpos.h"
#include "util.h"
static int v1_tagged; /* = 0 */
static int cbase = 16;
static int saw_hyphen; /* = 0 */
static unsigned long long last_val;
static char *last_name; /* = NULL */
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
const struct {
const char *pattern;
int obase, width;
} guess_table[] = {
{ "*-frequency", 10, 0 },
{ "num-*", 10, 0 },
{ "#*-cells", 10, 0 },
{ "*cache-line-size", 10, 0 },
{ "*cache-block-size", 10, 0 },
{ "*cache-size", 10, 0 },
{ "*cache-sets", 10, 0 },
{ "cell-index", 10, 0 },
{ "bank-width", 10, 0 },
{ "*-fifo-size", 10, 0 },
{ "*-frame-size", 10, 0 },
{ "*-channel", 10, 0 },
{ "current-speed", 10, 0 },
{ "phy-map", 16, 8 },
{ "dcr-reg", 16, 3 },
{ "reg", 16, 8 },
{ "ranges", 16, 8},
};
%}
%%
<*>"/include/"{GAP}{STRING} ECHO;
<*>\"([^\\"]|\\.)*\" ECHO;
<*>"/dts-v1/" {
die("Input dts file is already version 1\n");
}
<*>"/memreserve/" {
if (!v1_tagged) {
fprintf(yyout, "/dts-v1/;\n\n");
v1_tagged = 1;
}
ECHO;
BEGIN(INITIAL);
}
<*>{LABEL}: ECHO;
<INITIAL>[bodh]# {
if (*yytext == 'b')
cbase = 2;
else if (*yytext == 'o')
cbase = 8;
else if (*yytext == 'd')
cbase = 10;
else
cbase = 16;
}
<INITIAL>[0-9a-fA-F]+ {
unsigned long long val;
int obase = 16, width = 0;
int i;
val = strtoull(yytext, NULL, cbase);
if (saw_hyphen)
val = val - last_val + 1;
if (last_name) {
for (i = 0; i < ARRAY_SIZE(guess_table); i++)
if (fnmatch(guess_table[i].pattern,
last_name, 0) == 0) {
obase = guess_table[i].obase;
width = guess_table[i].width;
}
} else {
obase = 16;
width = 16;
}
if (cbase != 16)
obase = cbase;
switch (obase) {
case 2:
case 16:
fprintf(yyout, "0x%0*llx", width, val);
break;
case 8:
fprintf(yyout, "0%0*llo", width, val);
break;
case 10:
fprintf(yyout, "%*llu", width, val);
break;
}
cbase = 16;
last_val = val;
saw_hyphen = 0;
}
\&{LABEL} ECHO;
"&{/"{PATHCHAR}+\} ECHO;
<INITIAL>"&/"{PATHCHAR}+ fprintf(yyout, "&{/%s}", yytext + 2);
<BYTESTRING>[0-9a-fA-F]{2} ECHO;
<BYTESTRING>"]" {
ECHO;
BEGIN(INITIAL);
}
<PROPNODENAME>{PROPNODECHAR}+ {
ECHO;
last_name = xstrdup(yytext);
BEGIN(INITIAL);
}
<*>{GAP} ECHO;
<*>- { /* Hack to convert old style memreserves */
saw_hyphen = 1;
fprintf(yyout, " ");
}
<*>. {
if (!v1_tagged) {
fprintf(yyout, "/dts-v1/;\n\n");
v1_tagged = 1;
}
ECHO;
if (yytext[0] == '[') {
BEGIN(BYTESTRING);
}
if ((yytext[0] == '{')
|| (yytext[0] == ';')) {
BEGIN(PROPNODENAME);
}
}
%%
static void usage(void)
{
fprintf(stderr, "convert-dtsv0 <v0 dts file>...\n");
exit(3);
}
static void convert_file(const char *fname)
{
const char suffix[] = "v1";
int len = strlen(fname);
char *newname;
newname = xmalloc(len + sizeof(suffix));
memcpy(newname, fname, len);
memcpy(newname + len, suffix, sizeof(suffix));
yyin = fopen(fname, "r");
if (!yyin)
die("Couldn't open input file %s: %s\n",
fname, strerror(errno));
yyout = fopen(newname, "w");
if (!yyout)
die("Couldn't open output file %s: %s\n",
newname, strerror(errno));
while(yylex())
;
}
int main(int argc, char *argv[])
{
int i;
if (argc < 2)
usage();
for (i = 1; i < argc; i++) {
fprintf(stderr, "Converting %s from dts v0 to dts v1\n", argv[i]);
convert_file(argv[i]);
}
exit(0);
}