Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* vpd_decode.h
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*
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* Google VPD decoding routines.
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*
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* Copyright 2017 Google Inc.
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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 <linux/types.h>
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enum {
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VPD_OK = 0,
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VPD_FAIL,
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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(const u8 *key, u32 key_len,
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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 plused the number of bytes consumed in
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* 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(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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