hush: Add rudimentary support for PS1 and PS2
Add trivial support for changing the U-Boot command prompt string by setting PS1 and PS2 environment variables. Only static variables are supported. Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
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README
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README
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@ -2905,6 +2905,14 @@ CBFS (Coreboot Filesystem) support
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Enable editing and History functions for interactive
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Enable editing and History functions for interactive
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command line input operations
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command line input operations
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- Command Line PS1/PS2 support:
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CONFIG_CMDLINE_PS_SUPPORT
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Enable support for changing the command prompt string
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at run-time. Only static string is supported so far.
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The string is obtained from environment variables PS1
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and PS2.
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- Default Environment:
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- Default Environment:
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CONFIG_EXTRA_ENV_SETTINGS
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CONFIG_EXTRA_ENV_SETTINGS
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@ -978,12 +978,22 @@ static inline void setup_prompt_string(int promptmode, char **prompt_str)
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static int uboot_cli_readline(struct in_str *i)
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static int uboot_cli_readline(struct in_str *i)
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{
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{
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char *prompt;
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char *prompt;
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char __maybe_unused *ps_prompt = NULL;
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if (i->promptmode == 1)
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if (i->promptmode == 1)
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prompt = CONFIG_SYS_PROMPT;
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prompt = CONFIG_SYS_PROMPT;
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else
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else
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prompt = CONFIG_SYS_PROMPT_HUSH_PS2;
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prompt = CONFIG_SYS_PROMPT_HUSH_PS2;
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#ifdef CONFIG_CMDLINE_PS_SUPPORT
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if (i->promptmode == 1)
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ps_prompt = getenv("PS1");
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else
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ps_prompt = getenv("PS2");
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if (ps_prompt)
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prompt = ps_prompt;
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#endif
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return cli_readline(prompt);
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return cli_readline(prompt);
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}
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}
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#endif
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#endif
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