2 * polling mode stateless debugging stuff, originally for NS16550 Serial Ports
4 * c 2001 PPC 64 Team, IBM Corp
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
13 #define WANT_PPCDBG_TAB /* Only defined here */
14 #include <linux/config.h>
15 #include <linux/types.h>
16 #include <linux/sched.h>
17 #include <asm/ppcdebug.h>
18 #include <asm/processor.h>
20 void (*udbg_putc)(unsigned char c);
21 unsigned char (*udbg_getc)(void);
22 int (*udbg_getc_poll)(void);
24 void udbg_puts(const char *s)
29 if (s && *s != '\0') {
30 while ((c = *s++) != '\0')
41 int udbg_write(const char *s, int n)
49 if (s && *s != '\0') {
50 while (((c = *s++) != '\0') && (remain-- > 0)) {
58 int udbg_read(char *buf, int buflen)
66 for (i = 0; i < buflen; ++i) {
69 } while (c == 0x11 || c == 0x13);
78 void udbg_console_write(struct console *con, const char *s, unsigned int n)
83 #define UDBG_BUFSIZE 256
84 void udbg_printf(const char *fmt, ...)
86 unsigned char buf[UDBG_BUFSIZE];
90 vsnprintf(buf, UDBG_BUFSIZE, fmt, args);
95 /* Special print used by PPCDBG() macro */
96 void udbg_ppcdbg(unsigned long debug_flags, const char *fmt, ...)
98 unsigned long active_debugs = debug_flags & ppc64_debug_switch;
102 unsigned char buf[UDBG_BUFSIZE];
103 unsigned long i, len = 0;
105 for (i=0; i < PPCDBG_NUM_FLAGS; i++) {
106 if (((1U << i) & active_debugs) &&
108 len += strlen(trace_names[i]);
109 udbg_puts(trace_names[i]);
114 snprintf(buf, UDBG_BUFSIZE, " [%s]: ", current->comm);
124 vsnprintf(buf, UDBG_BUFSIZE, fmt, ap);
130 unsigned long udbg_ifdebug(unsigned long flags)
132 return (flags & ppc64_debug_switch);