50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause */
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/*
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* This is a copy from upstream:
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* https://chromium.googlesource.com/chromiumos/platform/vpd/+/master/include/lib/vpd_decode.h
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*/
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#ifndef __VPD_DECODE_H
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#define __VPD_DECODE_H
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#include <stdint.h>
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enum {
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VPD_DECODE_OK = 0,
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VPD_DECODE_FAIL = 1,
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};
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enum {
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VPD_TYPE_TERMINATOR = 0,
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VPD_TYPE_STRING,
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VPD_TYPE_INFO = 0xfe,
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VPD_TYPE_IMPLICIT_TERMINATOR = 0xff,
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};
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/* Callback for vpd_decode_string to invoke. */
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typedef int vpd_decode_callback(
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const u8 *key, u32 key_len, const u8 *value, u32 value_len,
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void *arg);
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/*
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* vpd_decode_string
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*
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* Given the encoded string, this function invokes callback with extracted
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* (key, value). The *consumed will be incremented by the number of bytes
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* consumed in this function.
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*
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* The input_buf points to the first byte of the input buffer.
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*
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* The *consumed starts from 0, which is actually the next byte to be decoded.
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* It can be non-zero to be used in multiple calls.
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*
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* If one entry is successfully decoded, sends it to callback and returns the
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* result.
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*/
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int vpd_decode_string(
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const u32 max_len, const u8 *input_buf, u32 *consumed,
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vpd_decode_callback callback, void *callback_arg);
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#endif /* __VPD_DECODE_H */
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