From 6eaaafa2c32029bd9dc5fb4196fe2b22cb5b4d9b Mon Sep 17 00:00:00 2001 From: Hung-Te Lin Date: Fri, 21 Feb 2014 16:21:00 +0800 Subject: 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 Reviewed-on: https://chromium-review.googlesource.com/187411 Reviewed-by: Yung-chieh Lo (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 Reviewed-by: Yung-chieh Lo Reviewed-by: David Hendricks Commit-Queue: Hung-Te Lin (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 Reviewed-on: https://chromium-review.googlesource.com/187430 Reviewed-by: Yung-chieh Lo (cherry picked from commit bcd3832c06e8ed357c50f19396da21a218dc4b39) Squashed 3 related commits for a ChromeOS VPD parser. Change-Id: I4ba8fce16ea123c78d7b543c8353ab9bc1e2aa9f Signed-off-by: Isaac Christensen Reviewed-on: http://review.coreboot.org/6959 Reviewed-by: Ronald G. Minnich Tested-by: build bot (Jenkins) --- src/vendorcode/google/chromeos/vpd_tables.h | 114 ++++++++++++++++++++++++++++ 1 file changed, 114 insertions(+) create mode 100644 src/vendorcode/google/chromeos/vpd_tables.h (limited to 'src/vendorcode/google/chromeos/vpd_tables.h') 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 + +#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__ */ -- cgit v1.2.3