diff options
Diffstat (limited to 'qemu/roms/openbios/libopenbios/console.c')
-rw-r--r-- | qemu/roms/openbios/libopenbios/console.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/qemu/roms/openbios/libopenbios/console.c b/qemu/roms/openbios/libopenbios/console.c new file mode 100644 index 000000000..7f3aad8ef --- /dev/null +++ b/qemu/roms/openbios/libopenbios/console.c @@ -0,0 +1,68 @@ +/* + * <console.c> + * + * Simple text console + * + * Copyright (C) 2005 Stefan Reinauer <stepan@openbios.org> + * Copyright (C) 2013 Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation + * + */ + +#include "config.h" +#include "libopenbios/bindings.h" +#include "libopenbios/console.h" +#include "drivers/drivers.h" + +/* ****************************************************************** + * common functions, implementing simple concurrent console + * ****************************************************************** */ + +/* Dummy routines for when console is unassigned */ + +static int dummy_putchar(int c) +{ + return c; +} + +static int dummy_availchar(void) +{ + return 0; +} + +static int dummy_getchar(void) +{ + return 0; +} + +struct _console_ops console_ops = { + .putchar = dummy_putchar, + .availchar = dummy_availchar, + .getchar = dummy_getchar +}; + +#ifdef CONFIG_DEBUG_CONSOLE + +void init_console(struct _console_ops ops) +{ + console_ops = ops; +} + +int putchar(int c) +{ + return (*console_ops.putchar)(c); +} + +int availchar(void) +{ + return (*console_ops.availchar)(); +} + +int getchar(void) +{ + return (*console_ops.getchar)(); +} +#endif // CONFIG_DEBUG_CONSOLE |