nvramtool: Unify nvramtool and build_opt_tbl

As cmos.layout parsing capabilities are already there in nvramtool,
use those than using build_opt_tbl.c. Add binary and header file
generation in nvramtool. Make appropriate changes to Makefile.inc.

Change-Id: Iaf3f5d4f51451aeb33c92800a0c895045f2388cf
Signed-off-by: Vikram Narayanan <vikram186@gmail.com>
Reviewed-on: http://review.coreboot.org/898
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

4 files changed, 268 insertions, 0 deletions

diff --git a/util/nvramtool/accessors/layout-bin.c b/util/nvramtool/accessors/layout-bin.c
index cf79646453fb..b910e358b6f1 100644
--- a/util/nvramtool/accessors/layout-bin.c
+++ b/util/nvramtool/accessors/layout-bin.c
@@ -1,6 +1,12 @@
 /*****************************************************************************\
  * lbtable.c
  *****************************************************************************
+ *  Copyright (C) 2012, Vikram Narayanan
+ *  	Unified build_opt_tbl and nvramtool
+ *  	build_opt_tbl.c
+ *  	Copyright (C) 2003 Eric Biederman (ebiederm@xmission.com)
+ *  	Copyright (C) 2007-2010 coresystems GmbH
+ *
  *  Copyright (C) 2002-2005 The Regents of the University of California.
  *  Produced at the Lawrence Livermore National Laboratory.
  *  Written by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>
@@ -40,6 +46,7 @@
 #include "cmos_lowlevel.h"
 #include "hexdump.h"
 #include "cbfs.h"
+#include "layout-text.h"
 
 static void process_cmos_table(void);
 static void get_cmos_checksum_info(void);
@@ -61,6 +68,8 @@ static const struct lb_record *next_cmos_rec(const struct lb_record *last,
  */
 static const struct cmos_option_table *cmos_table = NULL;
 
+#define ROUNDUP4(x)	(x += (4 - (x % 4)))
+
 void process_layout(void)
 {
 	if ((cmos_table) == NULL) {
@@ -83,6 +92,130 @@ void get_layout_from_cbfs_file(void)
 	process_layout();
 }
 
+int write_cmos_layout_bin(FILE *f)
+{
+	const cmos_entry_t *cmos_entry;
+	const cmos_enum_t *cmos_enum;
+	cmos_checksum_layout_t layout;
+	struct cmos_option_table table;
+	struct cmos_entries entry;
+	struct cmos_enums cenum;
+	struct cmos_checksum csum;
+	size_t sum = 0;
+	int len;
+
+	for (cmos_entry = first_cmos_entry(); cmos_entry != NULL;
+			cmos_entry = next_cmos_entry(cmos_entry)) {
+
+		if (cmos_entry == first_cmos_entry()) {
+			sum += sizeof(table);
+			table.header_length = sizeof(table);
+			table.tag = LB_TAG_CMOS_OPTION_TABLE;
+
+			if (fwrite((char *)&table, sizeof(table), 1, f) != 1) {
+				perror("Error writing image file");
+				goto err;
+			}
+		}
+
+		memset(&entry, 0, sizeof(entry));
+		entry.tag = LB_TAG_OPTION;
+		entry.config = cmos_entry->config;
+		entry.config_id = (uint32_t)cmos_entry->config_id;
+		entry.bit = cmos_entry->bit;
+		entry.length = cmos_entry->length;
+
+		if (!is_ident((char *)cmos_entry->name)) {
+			fprintf(stderr,
+				"Error - Name %s is an invalid identifier\n",
+				cmos_entry->name);
+			goto err;
+		}
+
+		memcpy(entry.name, cmos_entry->name, strlen(cmos_entry->name));
+		entry.name[strlen(cmos_entry->name)] = '\0';
+		len = strlen(cmos_entry->name) + 1;
+
+		if (len % 4)
+			ROUNDUP4(len);
+
+		entry.size = sizeof(entry) - CMOS_MAX_NAME_LENGTH + len;
+		sum += entry.size;
+		if (fwrite((char *)&entry, entry.size, 1, f) != 1) {
+			perror("Error writing image file");
+			goto err;
+		}
+	}
+
+	for (cmos_enum = first_cmos_enum();
+			cmos_enum != NULL; cmos_enum = next_cmos_enum(cmos_enum)) {
+		memset(&cenum, 0, sizeof(cenum));
+		cenum.tag = LB_TAG_OPTION_ENUM;
+		memcpy(cenum.text, cmos_enum->text, strlen(cmos_enum->text));
+		cenum.text[strlen(cmos_enum->text)] = '\0';
+		len = strlen((char *)cenum.text) + 1;
+
+		if (len % 4)
+			ROUNDUP4(len);
+
+		cenum.config_id = cmos_enum->config_id;
+		cenum.value = cmos_enum->value;
+		cenum.size = sizeof(cenum) - CMOS_MAX_TEXT_LENGTH + len;
+		sum += cenum.size;
+		if (fwrite((char *)&cenum, cenum.size, 1, f) != 1) {
+			perror("Error writing image file");
+			goto err;
+		}
+	}
+
+	layout.summed_area_start = cmos_checksum_start;
+	layout.summed_area_end = cmos_checksum_end;
+	layout.checksum_at = cmos_checksum_index;
+	checksum_layout_to_bits(&layout);
+
+	csum.tag = LB_TAG_OPTION_CHECKSUM;
+	csum.size = sizeof(csum);
+	csum.range_start = layout.summed_area_start;
+	csum.range_end = layout.summed_area_end;
+	csum.location = layout.checksum_at;
+	csum.type = CHECKSUM_PCBIOS;
+	sum += csum.size;
+
+	if (fwrite((char *)&csum, csum.size, 1, f) != 1) {
+		perror("Error writing image file");
+		goto err;
+	}
+
+	if (fseek(f, sizeof(table.tag), SEEK_SET) != 0) {
+		perror("Error while seeking");
+		goto err;
+	}
+
+	if (fwrite((char *)&sum, sizeof(table.tag), 1, f) != 1) {
+		perror("Error writing image file");
+		goto err;
+	}
+	return sum;
+
+err:
+	fclose(f);
+	exit(1);
+}
+
+void write_cmos_output_bin(const char *binary_filename)
+{
+	FILE *fp;
+
+	if ((fp = fopen(binary_filename, "wb")) == NULL) {
+		fprintf(stderr,
+			"%s: Can not open file %s for writing: "
+			"%s\n", prog_name, binary_filename, strerror(errno));
+		exit(1);
+	}
+	write_cmos_layout_bin(fp);
+	fclose(fp);
+}
+
 /****************************************************************************
  * get_layout_from_cmos_table
  *
diff --git a/util/nvramtool/accessors/layout-common.c b/util/nvramtool/accessors/layout-common.c
new file mode 100644
index 000000000000..0a99d3b89c9c
--- /dev/null
+++ b/util/nvramtool/accessors/layout-common.c
@@ -0,0 +1,75 @@
+/*****************************************************************************\
+ * layout_common.c
+ *****************************************************************************
+ *  Copyright (C) 2012, Vikram Narayanan
+ *  Unified build_opt_tbl and nvramtool
+ *  build_opt_tbl.c
+ *  	Copyright (C) 2003 Eric Biederman (ebiederm@xmission.com)
+ *  	Copyright (C) 2007-2010 coresystems GmbH
+ *
+ *  This file is part of nvramtool, a utility for reading/writing coreboot
+ *  parameters and displaying information from the coreboot table.
+ *  For details, see http://coreboot.org/nvramtool.
+ *
+ *  Please also read the file DISCLAIMER which is included in this software
+ *  distribution.
+ *
+ *  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) version 2, dated June 1991.
+ *
+ *  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 terms and
+ *  conditions of 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.,
+ *  51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+\*****************************************************************************/
+
+#include <ctype.h>
+
+static int is_ident_nondigit(int c)
+{
+	int result;
+	switch(c) {
+	case 'A':	case 'B':	case 'C':	case 'D':
+	case 'E':	case 'F':	case 'G':	case 'H':
+	case 'I':	case 'J':	case 'K':	case 'L':
+	case 'M':	case 'N':	case 'O':	case 'P':
+	case 'Q':	case 'R':	case 'S':	case 'T':
+	case 'U':	case 'V':	case 'W':	case 'X':
+	case 'Y':	case 'Z':
+	case 'a':	case 'b':	case 'c':	case 'd':
+	case 'e':	case 'f':	case 'g':	case 'h':
+	case 'i':	case 'j':	case 'k':	case 'l':
+	case 'm':	case 'n':	case 'o':	case 'p':
+	case 'q':	case 'r':	case 's':	case 't':
+	case 'u':	case 'v':	case 'w':	case 'x':
+	case 'y':	case 'z':
+	case '_':
+		result = 1;
+		break;
+	default:
+		result = 0;
+		break;
+	}
+	return result;
+}
+
+int is_ident(char *str)
+{
+	int result;
+	int ch;
+	ch = *str;
+	result = 0;
+	if (is_ident_nondigit(ch)) {
+		do {
+			str++;
+			ch = *str;
+		} while(ch && (is_ident_nondigit(ch) || (isdigit(ch))));
+		result = (ch == '\0');
+	}
+	return result;
+}
diff --git a/util/nvramtool/accessors/layout-text.c b/util/nvramtool/accessors/layout-text.c
index cbe698c5042c..a06f560ceea2 100644
--- a/util/nvramtool/accessors/layout-text.c
+++ b/util/nvramtool/accessors/layout-text.c
@@ -1,6 +1,12 @@
 /*****************************************************************************\
  * layout-text.c
  *****************************************************************************
+ *  Copyright (C) 2012, Vikram Narayanan
+ *  	Unified build_opt_tbl and nvramtool
+ *  	build_opt_tbl.c
+ *  	Copyright (C) 2003 Eric Biederman (ebiederm@xmission.com)
+ *  	Copyright (C) 2007-2010 coresystems GmbH
+ *
  *  Copyright (C) 2002-2005 The Regents of the University of California.
  *  Produced at the Lawrence Livermore National Laboratory.
  *  Written by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>.
@@ -218,6 +224,57 @@ void get_layout_from_file(void)
 	fclose(f);
 }
 
+void write_cmos_layout_header(const char *header_filename)
+{
+	FILE *fp;
+	const cmos_entry_t *cmos_entry;
+	cmos_checksum_layout_t layout;
+
+	if ((fp = fopen(header_filename, "w+")) == NULL) {
+		fprintf(stderr,
+				"%s: Can't open file %s for writing: %s\n",
+				prog_name, header_filename, strerror(errno));
+			exit(1);
+	}
+
+	fprintf(fp, "/**\n * This is an autogenerated file. Do not EDIT.\n"
+			" * All changes made to this file will be lost.\n"
+			" * See mainboard's cmos.layout file.\n */\n"
+			"\n#ifndef __OPTION_TABLE_H\n"
+			"#define __OPTION_TABLE_H\n\n");
+
+	for (cmos_entry = first_cmos_entry(); cmos_entry != NULL;
+			cmos_entry = next_cmos_entry(cmos_entry)) {
+
+		if (!is_ident((char *)cmos_entry->name)) {
+			fprintf(stderr,
+				"Error - Name %s is an invalid identifier\n",
+				cmos_entry->name);
+			fclose(fp);
+			exit(1);
+		}
+
+		fprintf(fp, "#define CMOS_VSTART_%s\t%d\n",
+				cmos_entry->name, cmos_entry->bit);
+		fprintf(fp, "#define CMOS_VLEN_%s\t%d\n",
+				cmos_entry->name, cmos_entry->length);
+	}
+
+	layout.summed_area_start = cmos_checksum_start;
+	layout.summed_area_end = cmos_checksum_end;
+	layout.checksum_at = cmos_checksum_index;
+	checksum_layout_to_bits(&layout);
+
+	fprintf(fp, "\n#define LB_CKS_RANGE_START %d\n",
+			layout.summed_area_start / 8);
+	fprintf(fp, "#define LB_CKS_RANGE_END %d\n",
+			layout.summed_area_end / 8);
+	fprintf(fp, "#define LB_CKS_LOC %d\n",
+			layout.checksum_at / 8);
+	fprintf(fp, "\n#endif /* __OPTION_TABLE_H */\n");
+
+	fclose(fp);
+}
 /****************************************************************************
  * write_cmos_layout
  *
diff --git a/util/nvramtool/accessors/layout-text.h b/util/nvramtool/accessors/layout-text.h
index 21997e9a4626..85628f7e5e87 100644
--- a/util/nvramtool/accessors/layout-text.h
+++ b/util/nvramtool/accessors/layout-text.h
@@ -37,5 +37,8 @@
 void set_layout_filename(const char filename[]);
 void get_layout_from_file(void);
 void write_cmos_layout(FILE * f);
+void write_cmos_output_bin(const char *binary_filename);
+void write_cmos_layout_header(const char *header_filename);
+extern int is_ident(char *str);
 
 #endif				/* LAYOUT_FILE_H */