1 files changed, 76 insertions, 0 deletions
diff --git a/src/drivers/elog/elog_internal.h b/src/drivers/elog/elog_internal.h
new file mode 100644
index 0000000000..2a6a0b7fc4
--- /dev/null
+++ b/src/drivers/elog/elog_internal.h
@@ -0,0 +1,76 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.
+ *
+ * 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 of the License.
+ *
+ * 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 ELOG_INTERNAL_H_
+#define ELOG_INTERNAL_H_
+
+/* ELOG header */
+struct elog_header {
+	u32 magic;
+	u8 version;
+	u8 header_size;
+	u8 reserved[2];
+} __attribute__ ((packed));
+
+/* ELOG related constants */
+#define ELOG_SIGNATURE			0x474f4c45  /* 'ELOG' */
+#define ELOG_VERSION			1
+
+typedef enum elog_descriptor_type {
+	ELOG_DESCRIPTOR_UNKNOWN,
+	ELOG_DESCRIPTOR_MEMORY,
+	ELOG_DESCRIPTOR_FLASH,
+} elog_descriptor_type;
+
+typedef enum elog_area_state {
+	ELOG_AREA_UNDEFINED,		/* Initial boot strap state */
+	ELOG_AREA_EMPTY,		/* Entire area is empty */
+	ELOG_AREA_HAS_CONTENT,		/* Area has some content */
+} elog_area_state;
+
+typedef enum elog_header_state {
+	ELOG_HEADER_INVALID,
+	ELOG_HEADER_VALID,
+} elog_header_state;
+
+typedef enum elog_event_buffer_state {
+	ELOG_EVENT_BUFFER_OK,
+	ELOG_EVENT_BUFFER_CORRUPTED,
+} elog_event_buffer_state;
+
+/*
+ * Internal handler for event log buffers
+ */
+struct elog_descriptor {
+	elog_descriptor_type	type;
+	elog_area_state		area_state;
+	elog_header_state	header_state;
+	elog_event_buffer_state	event_buffer_state;
+	struct elog_header	*staging_header;
+	void                    *backing_store;
+	u8			*data;
+	u16                     total_size;
+	u16			data_size;
+	u16			next_event_offset;
+	u16			last_event_offset;
+	u16			last_event_size;
+	u16			event_count;
+};
+
+#endif /* ELOG_INTERNAL_H_ */