vendorcode: Add ChromeOS VPD parser.

Copied (and unmodified) the minimal bits from ChromeOS libVPD:
 https://chromium.googlesource.com/chromiumos/platform/vpd

Old-Change-Id: Id75d1bfd16263ac1b94c22979f9892cf7908d5e6
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/187411
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
(cherry picked from commit a10ca23686299f3fd5b639631242cadaa2ca9e8a)

vendorcode: Update ChromeOS VPD Parser.

Merge recent changes in ChromeOS VPD that allows non-memory-mapped firmware
to load VPD easier and faster (ref:
 https://chromium-review.googlesource.com/188134 ).

Old-Change-Id: I3ee0b89c703f476f3d77cdde52cc7588724f7686
Reviewed-on: https://chromium-review.googlesource.com/188743
Tested-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Commit-Queue: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit 03f4d521a7fa711b963b0e1822e92eac16a691b1)

vendorcode: Access to ChromeOS VPD on default CBFS media.

The new function "cros_vpd_gets(key, buf, size)" provides an easy and quick way
to retrieve values in ChromeOS VPD section.

Old-Change-Id: I38e50615e515707ffaecdc4c4fae65043541b687
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/187430
Reviewed-by: Yung-chieh Lo <yjlou@chromium.org>
(cherry picked from commit bcd3832c06e8ed357c50f19396da21a218dc4b39)

Squashed 3 related commits for a ChromeOS VPD parser.

Change-Id: I4ba8fce16ea123c78d7b543c8353ab9bc1e2aa9f
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6959
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)

1 files changed, 114 insertions, 0 deletions

diff --git a/src/vendorcode/google/chromeos/vpd_tables.h b/src/vendorcode/google/chromeos/vpd_tables.h
new file mode 100644
index 0000000000..d58b5e846d
--- /dev/null
+++ b/src/vendorcode/google/chromeos/vpd_tables.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Ported from mosys project (http://code.google.com/p/mosys/).
+ */
+
+#ifndef __LIB_VPD_TABLES_H__
+#define __LIB_VPD_TABLES_H__
+
+#include <inttypes.h>
+
+#define VPD_ENTRY_MAGIC    "_SM_"
+#define VPD_INFO_MAGIC     \
+  "\xfe"      /* type: VPD header */       \
+  "\x09"      /* key length, 9 = 1 + 8 */  \
+  "\x01"      /* info version, 1 */        \
+  "gVpdInfo"  /* signature, 8 bytes */ \
+  "\x04"      /* value length */
+
+/* Google specific VPD info */
+struct google_vpd_info {
+  union {
+    struct {
+      uint8_t type;
+      uint8_t key_len;
+      uint8_t info_ver;
+      uint8_t signature[8];
+      uint8_t value_len;
+    } tlv;
+    uint8_t magic[12];
+  } header;
+  uint32_t size;
+} __attribute__((packed));
+
+/* Entry */
+struct vpd_entry {
+  uint8_t anchor_string[4];
+  uint8_t entry_cksum;
+  uint8_t entry_length;
+  uint8_t major_ver;
+  uint8_t minor_ver;
+  uint16_t max_size;
+  uint8_t entry_rev;
+  uint8_t format_area[5];
+  uint8_t inter_anchor_string[5];
+  uint8_t inter_anchor_cksum;
+  uint16_t table_length;
+  uint32_t table_address;
+  uint16_t table_entry_count;
+  uint8_t bcd_revision;
+} __attribute__ ((packed));
+
+/* Header */
+struct vpd_header {
+  uint8_t type;
+  uint8_t length;
+  uint16_t handle;
+} __attribute__ ((packed));
+
+/* Type 0 - firmware information */
+struct vpd_table_firmware {
+  uint8_t vendor;
+  uint8_t version;
+  uint16_t start_address;
+  uint8_t release_date;
+  uint8_t rom_size_64k_blocks;
+  uint32_t characteristics;
+  uint8_t extension[2];  /* v2.4+ */
+  uint8_t major_ver;     /* v2.4+ */
+  uint8_t minor_ver;     /* v2.4+ */
+  uint8_t ec_major_ver;  /* v2.4+ */
+  uint8_t ec_minor_ver;  /* v2.4+ */
+} __attribute__ ((packed));
+
+/* Type 1 - system information */
+struct vpd_table_system {
+  uint8_t manufacturer;
+  uint8_t name;
+  uint8_t version;
+  uint8_t serial_number;
+  uint8_t uuid[16];
+  uint8_t wakeup_type;
+  uint8_t sku_number;  /* v2.4+ */
+  uint8_t family;      /* v2.4+ */
+} __attribute__ ((packed));
+
+/* Type 127 - end of table */
+struct vpd_table_eot {
+  struct vpd_header header;
+} __attribute__ ((packed));
+
+/* Type 241 - binary blob pointer */
+struct vpd_table_binary_blob_pointer {
+  uint8_t struct_major_version;
+  uint8_t struct_minor_version;
+  uint8_t vendor;
+  uint8_t description;
+  uint8_t major_version;
+  uint8_t minor_version;
+  uint8_t variant;
+  uint8_t reserved[5];
+  uint8_t uuid[16];
+  uint32_t offset;
+  uint32_t size;
+} __attribute__ ((packed));
+
+/* The length and number of strings defined here is not a limitation of VPD.
+ * These numbers were deemed good enough during development. */
+#define VPD_MAX_STRINGS 10
+#define VPD_MAX_STRING_LENGTH 64
+
+#endif /* __LIB_VPD_TABLES_H__ */