diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/dec/prom/console.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/mips/dec/prom/console.c')
-rw-r--r-- | arch/mips/dec/prom/console.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/mips/dec/prom/console.c b/arch/mips/dec/prom/console.c new file mode 100644 index 00000000000..cade16ec7e5 --- /dev/null +++ b/arch/mips/dec/prom/console.c @@ -0,0 +1,55 @@ +/* + * arch/mips/dec/prom/console.c + * + * DECstation PROM-based early console support. + * + * Copyright (C) 2004 Maciej W. Rozycki + * + * 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; either version + * 2 of the License, or (at your option) any later version. + */ +#include <linux/console.h> +#include <linux/init.h> +#include <linux/kernel.h> + +#include <asm/dec/prom.h> + +static void __init prom_console_write(struct console *con, const char *s, + unsigned int c) +{ + static char sfmt[] __initdata = "%%%us"; + char fmt[13]; + + snprintf(fmt, sizeof(fmt), sfmt, c); + prom_printf(fmt, s); +} + +static struct console promcons __initdata = { + .name = "prom", + .write = prom_console_write, + .flags = CON_PRINTBUFFER, + .index = -1, +}; + +static int promcons_output __initdata = 0; + +void __init register_prom_console(void) +{ + if (!promcons_output) { + promcons_output = 1; + register_console(&promcons); + } +} + +void __init unregister_prom_console(void) +{ + if (promcons_output) { + unregister_console(&promcons); + promcons_output = 0; + } +} + +void disable_early_printk(void) + __attribute__((alias("unregister_prom_console"))); |