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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/mips/dec/prom/console.c | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/mips/dec/prom/console.c')
-rw-r--r-- | arch/mips/dec/prom/console.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/mips/dec/prom/console.c b/arch/mips/dec/prom/console.c new file mode 100644 index 000000000..31a8441d8 --- /dev/null +++ b/arch/mips/dec/prom/console.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * DECstation PROM-based early console support. + * + * Copyright (C) 2004, 2007 Maciej W. Rozycki + */ +#include <linux/console.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/string.h> + +#include <asm/dec/prom.h> + +static void __init prom_console_write(struct console *con, const char *s, + unsigned int c) +{ + char buf[81]; + unsigned int chunk = sizeof(buf) - 1; + + while (c > 0) { + if (chunk > c) + chunk = c; + memcpy(buf, s, chunk); + buf[chunk] = '\0'; + prom_printf("%s", buf); + s += chunk; + c -= chunk; + } +} + +static struct console promcons __initdata = { + .name = "prom", + .write = prom_console_write, + .flags = CON_BOOT | CON_PRINTBUFFER, + .index = -1, +}; + +void __init register_prom_console(void) +{ + register_console(&promcons); +} |