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Introduce the (optional) eeprom print and eeprom update commands. These commands are eeprom layout aware: * The eeprom print command prints the contents of the eeprom in a human readable way (eeprom layout fields, and data formatted to be fit for human consumption). * The eeprom update command allows user to update eeprom fields by specifying the field name, and providing the new data in a human readable format (same format as displayed by the eeprom print command). * Both commands can either auto detect the layout, or be told which layout to use. New CONFIG options: CONFIG_CMD_EEPROM_LAYOUT - enables commands. CONFIG_EEPROM_LAYOUT_HELP_STRING - tells user what layout names are supported Feature API: __weak int parse_layout_version(char *str) - override to provide your own layout name parsing __weak void __eeprom_layout_assign(struct eeprom_layout *layout, int layout_version); - override to setup the layout metadata based on the version __weak int eeprom_layout_detect(unsigned char *data) - override to provide your own algorithm for detecting layout version eeprom_field.c - contains various printing and updating functions for common types of eeprom fields. Can be used for defining custom layouts. Cc: Heiko Schocher <hs@denx.de> Cc: Marek Vasut <marex@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Igor Grinberg <grinberg@compulab.co.il> Cc: Tom Rini <trini@konsulko.com> Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
34 lines
849 B
C
34 lines
849 B
C
/*
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* (C) Copyright 2009-2016 CompuLab, Ltd.
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*
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* Authors: Nikita Kiryanov <nikita@compulab.co.il>
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* Igor Grinberg <grinberg@compulab.co.il>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _LAYOUT_
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#define _LAYOUT_
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#define RESERVED_FIELDS NULL
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#define LAYOUT_VERSION_UNRECOGNIZED -1
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#define LAYOUT_VERSION_AUTODETECT -2
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struct eeprom_layout {
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struct eeprom_field *fields;
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int num_of_fields;
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int layout_version;
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unsigned char *data;
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int data_size;
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void (*print)(const struct eeprom_layout *eeprom_layout);
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int (*update)(struct eeprom_layout *eeprom_layout, char *field_name,
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char *new_data);
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};
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void eeprom_layout_setup(struct eeprom_layout *layout, unsigned char *buf,
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unsigned int buf_size, int layout_version);
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__weak void __eeprom_layout_assign(struct eeprom_layout *layout,
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int layout_version);
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#endif
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