Add CONFIG_CONSOLE_WRITEONLY to configure the consoles as write-only, making the bootup effectively non-interactive.
Signed-off-by: Rouven Czerwinski <[email protected]> --- common/Kconfig | 11 +++++++++++ common/console.c | 2 +- common/console_simple.c | 5 ++++- common/startup.c | 5 +++++ 4 files changed, 21 insertions(+), 2 deletions(-) diff --git a/common/Kconfig b/common/Kconfig index 1a5bb53182..abf9b7bd73 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -775,6 +775,17 @@ config CONSOLE_ALLOW_COLOR compile time default for colored console output. After boot it can be controlled using global.allow_color. +config CONSOLE_WRITEONLY + prompt "Enable writeonly consoles (non-interactive)" + depends on CONSOLE_FULL || CONSOLE_SIMPLE + bool + help + If enabled, all consoles are configured to be write-only, meaning + they will not read any input, making the console effectively + non-interactive. + CAUTION: this will also disable input devices, since they are registered as + consoles. + config PBL_CONSOLE depends on PBL_IMAGE depends on !CONSOLE_NONE diff --git a/common/console.c b/common/console.c index 3375ecb7e5..fb26886f8c 100644 --- a/common/console.c +++ b/common/console.c @@ -93,7 +93,7 @@ int console_set_active(struct console_device *cdev, unsigned flag) { int ret; - if (!cdev->getc) + if (!cdev->getc || IS_ENABLED(CONFIG_CONSOLE_WRITEONLY)) flag &= ~CONSOLE_STDIN; if (!cdev->putc) flag &= ~(CONSOLE_STDOUT | CONSOLE_STDERR); diff --git a/common/console_simple.c b/common/console_simple.c index 42224842c5..75257c7b08 100644 --- a/common/console_simple.c +++ b/common/console_simple.c @@ -92,7 +92,10 @@ int console_register(struct console_device *newcdev) newcdev->setbrg(newcdev, newcdev->baudrate); } - newcdev->f_active = CONSOLE_STDIN | CONSOLE_STDOUT | CONSOLE_STDERR; + if (IS_ENABLED(CONFIG_CONSOLE_WRITEONLY)) + newcdev->f_active = CONSOLE_STDOUT | CONSOLE_STDERR; + else + newcdev->f_active = CONSOLE_STDIN | CONSOLE_STDOUT | CONSOLE_STDERR; barebox_banner(); diff --git a/common/startup.c b/common/startup.c index ea7ce6b8da..d7bf99df14 100644 --- a/common/startup.c +++ b/common/startup.c @@ -253,6 +253,11 @@ enum autoboot_state do_autoboot_countdown(void) menu_exists = stat(MENUFILE, &s) == 0; + if (IS_ENABLED(CONFIG_CONSOLE_WRITEONLY)) { + printf("\nNon-interactive console, booting system\n"); + return autoboot_state = AUTOBOOT_BOOT; + } + if (menu_exists) { printf("\nHit m for menu or %s to stop autoboot: ", global_autoboot_abort_keys[global_autoboot_abort_key]); -- 2.28.0 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
