2 * Copyright (C) 1996-2005 Paul Mackerras.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 #include <linux/string.h>
14 static bool paginating, paginate_skipping;
15 static unsigned long paginate_lpp; /* Lines Per Page */
16 static unsigned long paginate_pos;
18 void xmon_start_pagination(void)
21 paginate_skipping = false;
25 void xmon_end_pagination(void)
30 void xmon_set_pagination_lpp(unsigned long lpp)
35 static int xmon_readchar(void)
42 static int xmon_write(const char *ptr, int nb)
45 const char *p = ptr, *q;
46 const char msg[] = "[Hit a key (a:all, q:truncate, any:next page)]";
51 if (paginating && paginate_skipping)
55 while (paginating && (q = strchr(p, '\n'))) {
56 rv += udbg_write(p, q - p + 1);
60 if (paginate_pos >= paginate_lpp) {
61 udbg_write(msg, strlen(msg));
63 switch (xmon_readchar()) {
68 paginate_skipping = true;
76 udbg_write("\r\n", 2);
78 if (paginate_skipping)
84 return rv + udbg_write(p, nb - (p - ptr));
87 int xmon_putchar(int c)
93 return xmon_write(&ch, 1) == 1? c: -1;
96 static char line[256];
100 static int xmon_getchar(void)
108 if (c == -1 || c == 4)
110 if (c == '\r' || c == '\n') {
118 if (lineptr > line) {
126 while (lineptr > line) {
134 if (lineptr >= &line[sizeof(line) - 1])
142 lineleft = lineptr - line;
151 char *xmon_gets(char *str, int nb)
156 for (p = str; p < str + nb - 1; ) {
171 void xmon_printf(const char *format, ...)
174 static char xmon_outbuf[1024];
177 va_start(args, format);
178 n = vsnprintf(xmon_outbuf, sizeof(xmon_outbuf), format, args);
181 rc = xmon_write(xmon_outbuf, n);
184 /* No udbg hooks, fallback to printk() - dangerous */
185 pr_cont("%s", xmon_outbuf);
189 void xmon_puts(const char *str)
191 xmon_write(str, strlen(str));