mirror of
https://github.com/AsahiLinux/u-boot
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d42243fe21
The "bootargs" environment variable is used to set the command-line arguments to pass to the OS. Use this same mechanism with bootstd as well. When the variable is updated, it is written to the current bootflow. When the current bootflow is updated, the environment variable is updated too. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
95 lines
2 KiB
C
95 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2012
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* Joe Hershberger, National Instruments, joe.hershberger@ni.com
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*/
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#ifndef __ENV_CALLBACK_H__
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#define __ENV_CALLBACK_H__
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#include <env_flags.h>
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#include <linker_lists.h>
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#include <search.h>
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#define ENV_CALLBACK_VAR ".callbacks"
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/* Board configs can define additional static callback bindings */
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#ifndef CFG_ENV_CALLBACK_LIST_STATIC
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#define CFG_ENV_CALLBACK_LIST_STATIC
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#endif
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#ifdef CONFIG_SILENT_CONSOLE
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#define SILENT_CALLBACK "silent:silent,"
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#else
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#define SILENT_CALLBACK
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#endif
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#ifdef CONFIG_REGEX
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#define ENV_DOT_ESCAPE "\\"
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#else
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#define ENV_DOT_ESCAPE
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#endif
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#ifdef CONFIG_CMD_DNS
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#define DNS_CALLBACK "dnsip:dnsip,"
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#else
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#define DNS_CALLBACK
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#endif
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#ifdef CONFIG_NET
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#define NET_CALLBACKS \
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"bootfile:bootfile," \
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"ipaddr:ipaddr," \
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"gatewayip:gatewayip," \
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"netmask:netmask," \
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"serverip:serverip," \
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"nvlan:nvlan," \
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"vlan:vlan," \
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DNS_CALLBACK \
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"eth" ETHADDR_WILDCARD "addr:ethaddr,"
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#else
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#define NET_CALLBACKS
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#endif
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#ifdef CONFIG_IPV6
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#define NET6_CALLBACKS \
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"ip6addr:ip6addr," \
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"serverip6:serverip6," \
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"gatewayip6:gatewayip6,"
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#else
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#define NET6_CALLBACKS
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#endif
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#ifdef CONFIG_BOOTSTD_FULL
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#define BOOTSTD_CALLBACK \
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"bootmeths:bootmeths," \
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"bootargs:bootargs,"
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#else
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#define BOOTSTD_CALLBACK
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#endif
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/*
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* This list of callback bindings is static, but may be overridden by defining
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* a new association in the ".callbacks" environment variable.
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*/
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#define ENV_CALLBACK_LIST_STATIC ENV_DOT_ESCAPE ENV_CALLBACK_VAR ":callbacks," \
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ENV_DOT_ESCAPE ENV_FLAGS_VAR ":flags," \
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"baudrate:baudrate," \
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NET_CALLBACKS \
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NET6_CALLBACKS \
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BOOTSTD_CALLBACK \
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"loadaddr:loadaddr," \
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SILENT_CALLBACK \
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"stdin:console,stdout:console,stderr:console," \
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"serial#:serialno," \
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CFG_ENV_CALLBACK_LIST_STATIC
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#ifndef CONFIG_SPL_BUILD
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void env_callback_init(struct env_entry *var_entry);
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#else
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static inline void env_callback_init(struct env_entry *var_entry)
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{
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}
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#endif
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#endif /* __ENV_CALLBACK_H__ */
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