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[console] Add concept of generic console configuration

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2013-11-27 19:42:23 +00:00
parent b2251743d8
commit c501c980e0
5 changed files with 61 additions and 0 deletions
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32
src/core/console.c
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@@ -121,3 +121,35 @@ int getchar ( void ) {
int iskey ( void ) {
return has_input() ? 1 : 0;
}
/**
* Configure console
*
* @v config Console configuration
* @ret rc Return status code
*
* The configuration is passed to all configurable consoles, including
* those which are currently disabled. Consoles may choose to enable
* or disable themselves depending upon the configuration.
*
* If configuration fails, then all consoles will be reset.
*/
int console_configure ( struct console_configuration *config ) {
struct console_driver *console;
int rc;
/* Try to configure each console */
for_each_table_entry ( console, CONSOLES ) {
if ( ( console->configure ) &&
( ( rc = console->configure ( config ) ) != 0 ) )
goto err;
}
return 0;
err:
/* Reset all consoles, avoiding a potential infinite loop */
if ( config )
console_reset();
return rc;
}