diff options
Diffstat (limited to 'contrib/syslinux/syslinux-4.03/com32/lib/sys/stdcon_write.c')
-rw-r--r-- | contrib/syslinux/syslinux-4.03/com32/lib/sys/stdcon_write.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/contrib/syslinux/syslinux-4.03/com32/lib/sys/stdcon_write.c b/contrib/syslinux/syslinux-4.03/com32/lib/sys/stdcon_write.c deleted file mode 100644 index 9cb2f7d..0000000 --- a/contrib/syslinux/syslinux-4.03/com32/lib/sys/stdcon_write.c +++ /dev/null @@ -1,89 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * Copyright 2004-2008 H. Peter Anvin - All Rights Reserved - * - * Permission is hereby granted, free of charge, to any person - * obtaining a copy of this software and associated documentation - * files (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, - * copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom - * the Software is furnished to do so, subject to the following - * conditions: - * - * The above copyright notice and this permission notice shall - * be included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES - * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * ----------------------------------------------------------------------- */ - -/* - * stdcon_write.c - * - * Writing to the console; \n -> \r\n conversion. - */ - -#include <errno.h> -#include <string.h> -#include <com32.h> -#include <minmax.h> -#include "file.h" - -#define BIOS_ROWS (*(uint8_t *)0x484) /* Minus one; if zero use 24 (= 25 lines) */ -#define BIOS_COLS (*(uint16_t *)0x44A) - -static int __stdcon_open(struct file_info *fp) -{ - fp->o.rows = BIOS_ROWS + 1; - fp->o.cols = BIOS_COLS; - - /* Sanity check */ - if (fp->o.rows < 12) - fp->o.rows = 24; - if (fp->o.cols < 40) - fp->o.cols = 80; - - return 0; -} - -static ssize_t __stdcon_write(struct file_info *fp, const void *buf, - size_t count) -{ - com32sys_t ireg; - const char *bufp = buf; - size_t n = 0; - - (void)fp; - - memset(&ireg, 0, sizeof ireg); - ireg.eax.b[1] = 0x02; - - while (count--) { - if (*bufp == '\n') { - ireg.edx.b[0] = '\r'; - __intcall(0x21, &ireg, NULL); - } - ireg.edx.b[0] = *bufp++; - __intcall(0x21, &ireg, NULL); - n++; - } - - return n; -} - -const struct output_dev dev_stdcon_w = { - .dev_magic = __DEV_MAGIC, - .flags = __DEV_TTY | __DEV_OUTPUT, - .fileflags = O_WRONLY | O_CREAT | O_TRUNC | O_APPEND, - .write = __stdcon_write, - .close = NULL, - .open = __stdcon_open, -}; |