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Diffstat (limited to 'include/cros_board_info.h')
| -rw-r--r-- | include/cros_board_info.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/include/cros_board_info.h b/include/cros_board_info.h new file mode 100644 index 0000000000..8d140f1d25 --- /dev/null +++ b/include/cros_board_info.h @@ -0,0 +1,60 @@ +/* Copyright 2018 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. + * + * Cros Board Info + */ +#ifndef __CROS_EC_CROS_BOARD_INFO_H +#define __CROS_EC_CROS_BOARD_INFO_H + +#include "common.h" + +#define CBI_VERSION_MAJOR 0 +#define CBI_VERSION_MINOR 0 +static const uint8_t cbi_magic[] = { 0x43, 0x42, 0x49 }; /* 'C' 'B' 'I' */ + +struct cbi_header { + uint8_t magic[3]; + /* CRC of 'struct board_info' excluding magic and crc */ + uint8_t crc; + /* Data format version. Parsers are expected to process data as long + * as major version is equal or younger. */ + union { + struct { + uint8_t minor_version; + uint8_t major_version; + }; + uint16_t version; + }; + /* Total size of data. It can be larger than sizeof(struct board_info) + * if future versions add additional fields. */ + uint16_t total_size; +} __attribute__((packed)); + +struct board_info { + struct cbi_header head; + /* Board version */ + union { + struct { + uint8_t minor_version; + uint8_t major_version; + }; + uint16_t version; + }; + /* OEM ID */ + uint8_t oem_id; + /* SKU ID */ + uint8_t sku_id; +} __attribute__((packed)); + +/** + * Board info accessors + * + * @param version/sku_id/oem_id [OUT] Data read from EEPROM + * @return EC_SUCCESS on success or EC_ERROR_* otherwise. + */ +int cbi_get_board_version(uint32_t *version); +int cbi_get_sku_id(uint32_t *sku_id); +int cbi_get_oem_id(uint32_t *oem_id); + +#endif /* __CROS_EC_CROS_BOARD_INFO_H */ |