Give layouts their own type

Introduce `struct flashrom_layout` and refactor layout.c a little, so
we can reuse the layout from there and have other sources of layouts
beside it.

I didn't want to clutter up flash.h any more. So things went into a new
layout.h.

Change-Id: Icea1a58c283131cc9c5fde6f16d783538dc1a4c7
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/17944
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/layout.h b/layout.h
new file mode 100644
index 000000000..349cebca6
--- /dev/null
+++ b/layout.h
@@ -0,0 +1,62 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2005-2008 coresystems GmbH
+ * (Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH)
+ * Copyright (C) 2011-2013 Stefan Tauner
+ * Copyright (C) 2016 secunet Security Networks AG
+ * (Written by Nico Huber <nico.huber@secunet.com> for secunet)
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#ifndef __LAYOUT_H__
+#define __LAYOUT_H__ 1
+
+#include <stddef.h>
+#include <stdint.h>
+
+/* Types and macros regarding the maximum flash space size supported by generic code. */
+typedef uint32_t chipoff_t; /* Able to store any addressable offset within a supported flash memory. */
+typedef uint32_t chipsize_t; /* Able to store the number of bytes of any supported flash memory. */
+#define FL_MAX_CHIPOFF_BITS (24)
+#define FL_MAX_CHIPOFF ((chipoff_t)(1ULL<<FL_MAX_CHIPOFF_BITS)-1)
+#define PRIxCHIPOFF "06"PRIx32
+#define PRIuCHIPSIZE PRIu32
+
+#define MAX_ROMLAYOUT	32
+
+struct romentry {
+	chipoff_t start;
+	chipoff_t end;
+	bool included;
+	char name[256];
+};
+
+struct flashrom_layout {
+	/* entries store the entries specified in a layout file and associated run-time data */
+	struct romentry *entries;
+	/* the number of successfully parsed entries */
+	size_t num_entries;
+};
+
+struct single_layout {
+	struct flashrom_layout base;
+	struct romentry entry;
+};
+
+const struct flashrom_layout *get_global_layout(void);
+
+#endif				/* !__LAYOUT_H__ */