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dfeb4f0d79
Currently BCB C API only allows to modify 'command' BCB field. Extend it so that we can also read and modify all the available BCB fields (command, status, recovery, stage). Co-developed-by: Cody Schuffelen <schuffelen@google.com> Signed-off-by: Cody Schuffelen <schuffelen@google.com> Signed-off-by: Dmitrii Merkurev <dimorinny@google.com> Cc: Eugeniu Rosca <erosca@de.adit-jv.com> Cc: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org> Cc: Simon Glass <sjg@chromium.org> Cc: Mattijs Korpershoek <mkorpershoek@baylibre.com> Cc: Sean Anderson <sean.anderson@seco.com> Cc: Cody Schuffelen <schuffelen@google.com> Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> # on vim3 Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2020 Eugeniu Rosca <rosca.eugeniu@gmail.com>
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*
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* Android Bootloader Control Block Header
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*/
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#ifndef __BCB_H__
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#define __BCB_H__
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#include <part.h>
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enum bcb_field {
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BCB_FIELD_COMMAND,
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BCB_FIELD_STATUS,
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BCB_FIELD_RECOVERY,
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BCB_FIELD_STAGE
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};
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#if IS_ENABLED(CONFIG_CMD_BCB)
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int bcb_find_partition_and_load(const char *iface,
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int devnum, char *partp);
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int bcb_load(struct blk_desc *block_description,
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struct disk_partition *disk_partition);
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int bcb_set(enum bcb_field field, const char *value);
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/**
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* bcb_get() - get the field value.
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* @field: field to get
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* @value_out: buffer to copy bcb field value to
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* @value_size: buffer size to avoid overflow in case
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* value_out is smaller then the field value
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*/
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int bcb_get(enum bcb_field field, char *value_out, size_t value_size);
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int bcb_store(void);
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void bcb_reset(void);
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#else
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#include <linux/errno.h>
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static inline int bcb_load(struct blk_desc *block_description,
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struct disk_partition *disk_partition)
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{
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return -EOPNOTSUPP;
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}
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static inline int bcb_find_partition_and_load(const char *iface,
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int devnum, char *partp)
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{
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return -EOPNOTSUPP;
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}
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static inline int bcb_set(enum bcb_field field, const char *value)
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{
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return -EOPNOTSUPP;
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}
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static inline int bcb_get(enum bcb_field field, char *value_out)
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{
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return -EOPNOTSUPP;
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}
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static inline int bcb_store(void)
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{
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return -EOPNOTSUPP;
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}
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static inline void bcb_reset(void)
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{
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}
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#endif
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#endif /* __BCB_H__ */
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