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3f989e7b0e
Move env_relocate() over to the new header file. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Common environment functions
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*
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* (C) Copyright 2000-2009
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#ifndef __ENV_H
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#define __ENV_H
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#include <stdbool.h>
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/**
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* env_get_id() - Gets a sequence number for the environment
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*
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* This value increments every time the environment changes, so can be used an
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* an indication of this
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*
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* @return environment ID
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*/
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int env_get_id(void);
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/**
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* env_init() - Set up the pre-relocation environment
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*
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* This locates the environment or uses the default if nothing is available.
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* This must be called before env_get() will work.
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*
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* @return 0 if OK, -ENODEV if no environment drivers are enabled
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*/
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int env_init(void);
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/**
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* env_relocate() - Set up the post-relocation environment
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*
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* This loads the environment into RAM so that it can be modified. This is
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* called after relocation, before the environment is used
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*/
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void env_relocate(void);
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/**
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* env_get_f() - Look up the value of an environment variable (early)
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*
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* This function is called from env_get() if the environment has not been
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* loaded yet (GD_FLG_ENV_READY flag is 0). Some environment locations will
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* support reading the value (slowly) and some will not.
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*
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* @varname: Variable to look up
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* @return value of variable, or NULL if not found
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*/
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int env_get_f(const char *name, char *buf, unsigned int len);
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/**
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* env_complete() - return an auto-complete for environment variables
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*
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* @var: partial name to auto-complete
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* @maxv: Maximum number of matches to return
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* @cmdv: Returns a list of possible matches
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* @maxsz: Size of buffer to use for matches
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* @buf: Buffer to use for matches
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* @dollar_comp: non-zero to wrap each match in ${...}
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* @return number of matches found (in @cmdv)
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*/
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int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf,
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bool dollar_comp);
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#endif
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