In case CONSOLE_MUX and SYS_CONSOLE_IS_IN_ENV are on and
stdin or stdout or stderr are missing in environment, as fallback, get
these either from stdio_devices[std] or stdio_devices[std]->name.

Fixes: 6b343ab38d ("console: Print out complete stdio device list")

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

If line overflows readline it will not be returned, fix this behavior,
make it optional and documented properly.

Signed-off-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20240105072212.6615-6-clamor95@gmail.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

Set flag to enable console record on console_record_init
and not only on console_record_reset_enable. This fixes
missing start of U-Boot log for fastboot oem console
command.

Signed-off-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20240105072212.6615-5-clamor95@gmail.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

Add console_record_isempty to check if console record buffer
contains any data.

Signed-off-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20240105072212.6615-4-clamor95@gmail.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

Move the code from the 'cls' command into the console file, so it can
be called from elsewhere.

Signed-off-by: Simon Glass <sjg@chromium.org>

At present if both CONSOLE_MUX and SYS_CONSOLE_IS_IN_ENV are on,
during boot, the printed out stdio devices are incomplete, e.g.:
with "stdout=serial,vidconsole", only "vidconsole" is printed.

For such case, we can print out the stdio device name from the
environment variables.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

In preparation to future changes, refactor this routine a little bit.

Signed-off-by: Bin Meng <bmeng@tinylab.org>

As it is only called in common/console.c

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>  # qemu-x86_64

In case character 0x20 (space) is used as line separator,
character 0x9 (tab) is treated end of line. Commands which
output a lot of tabs, i.e. various tree printing commands
like 'fdt print' then end up generating a lot of newlines
in the recorded output, and the recorded output is corrupted.

Use character 0x00 (NUL) as separator instead to treat the
tabs as valid part of recorded line.

Suggested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

Add a config-option which forces the console to stay silent until the
proper environment is loaded from flash.

This is important when the default environment does not silence the
console but no output must be printed when 'silent' is set in the flash
environment.

After the environment from flash is loaded, the console will be
silenced/unsilenced depending on it.  If PRE_CONSOLE_BUFFER is also
used, the buffer will now be flushed if the console should not be
silenced.

Signed-off-by: Harald Seiler <hws@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>