diff options
author | Jordan Crouse <jordan.crouse@amd.com> | 2008-03-19 23:56:58 +0000 |
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committer | Jordan Crouse <jordan.crouse@amd.com> | 2008-03-19 23:56:58 +0000 |
commit | f6145c3c15789123f6b4a9ce64a517048e753762 (patch) | |
tree | 0d56f31bd3f7051766c03f00d46f40511446aa96 /payloads/libpayload/libc/console.c | |
parent | c221349746299537de9e01a0bcfb28485b15ef84 (diff) |
libpayload: The initial chunk of code writen by AMD
This is the initial chunk of code written by me and copyrighted
by AMD. Includes everything but a few files that we pulled from
outside sources.
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3170 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'payloads/libpayload/libc/console.c')
-rw-r--r-- | payloads/libpayload/libc/console.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/payloads/libpayload/libc/console.c b/payloads/libpayload/libc/console.c new file mode 100644 index 0000000000..bb7dec1f94 --- /dev/null +++ b/payloads/libpayload/libc/console.c @@ -0,0 +1,104 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <libpayload.h> + +void console_init(void) +{ +#ifdef CONFIG_VGA_CONSOLE + vga_init(); +#endif +#ifdef CONFIG_SERIAL_CONSOLE + serial_init(); +#endif +} + +static void device_putchar(unsigned char c) +{ +#ifdef CONFIG_VGA_CONSOLE + vga_putchar(0x700| c); +#endif +#ifdef CONFIG_SERIAL_CONSOLE + serial_putchar(c); +#endif +} + +int putchar(int c) +{ + c &= 0xff; + if (c == '\n') + device_putchar('\r'); + device_putchar(c); + return c; +} + +int puts(const char *s) +{ + int n = 0; + + while (*s) { + putchar(*s++); + n++; + } + + putchar('\n'); + return n+1; +} + +int havekey(void) +{ +#ifdef CONFIG_SERIAL_CONSOLE + if (serial_havechar()) + return 1; +#endif +#ifdef CONFIG_PC_KEYBOARD + if (keyboard_havechar()) + return 1; +#endif + return 0; +} + +/* This returns an ascii value - the two getchar functions + cook the respective input from the device +*/ + +int getchar(void) +{ + while (1) { +#ifdef CONFIG_SERIAL_CONSOLE + if (serial_havechar()) + return serial_getchar(); +#endif +#ifdef CONFIG_PC_KEYBOARD + if (keyboard_havechar()) + return keyboard_getchar(); +#endif + } +} + |