Introduce a new static function, `qclib_debug_log_level`, that
checks a runtime-configurable option, "qclib_debug_level", to
control whether QCLib enables serial logging.
This allows for dynamic control of QCLib's verbose output via a
coreboot option instead of relying solely on the static
`CONFIG(CONSOLE_SERIAL)` Kconfig option. This is necessary because
while the serial console might be enabled for general coreboot
logging, the user may want to suppress the often extensive and
low-level output from QCLib to keep the console clean during normal
operations.
The check for enabling QCLib's serial output is updated from
`if (CONFIG(CONSOLE_SERIAL))` to
`if (CONFIG(CONSOLE_SERIAL) && qclib_debug_log_level())`
The option value is read using
`get_uint_option("qclib_debug_level", 1)`, meaning the default
behavior is to enable QCLib logging if `CONSOLE_SERIAL` is set,
maintaining backward compatibility unless the option is explicitly
set to 0 at runtime.
BUG=b:445211186
TEST=Build and boot a Qualcomm platform with CONFIG_CONSOLE_SERIAL
enabled. Confirmed QCLib logs are present by default.
Set option "qclib_debug_level" to 0 via CBFS option and confirmed
QCLib logs are suppressed while coreboot serial output remains
active.
Change-Id: I2c7326fae889508f09e1eb5e3863456cf54f5c29
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89185
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
bf83dd9927