Linux 2.6.26-rc1
[cris-mirror.git] / drivers / isdn / hisax / hisax_debug.h
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1 /*
2 * Common debugging macros for use with the hisax driver
4 * Author Frode Isaksen
5 * Copyright 2001 by Frode Isaksen <fisaksen@bewan.com>
6 * 2001 by Kai Germaschewski <kai.germaschewski@gmx.de>
7 *
8 * This software may be used and distributed according to the terms
9 * of the GNU General Public License, incorporated herein by reference.
11 * How to use:
13 * Before including this file, you need to
14 * #define __debug_variable my_debug
15 * where my_debug is a variable in your code which
16 * determines the debug bitmask.
18 * If CONFIG_HISAX_DEBUG is not set, all macros evaluate to nothing
22 #ifndef __HISAX_DEBUG_H__
23 #define __HISAX_DEBUG_H__
26 #ifdef CONFIG_HISAX_DEBUG
28 #define DBG(level, format, arg...) do { \
29 if (level & __debug_variable) \
30 printk(KERN_DEBUG "%s: " format "\n" , __func__ , ## arg); \
31 } while (0)
33 #define DBG_PACKET(level,data,count) \
34 if (level & __debug_variable) dump_packet(__func__,data,count)
36 #define DBG_SKB(level,skb) \
37 if ((level & __debug_variable) && skb) dump_packet(__func__,skb->data,skb->len)
40 static void __attribute__((unused))
41 dump_packet(const char *name,const u_char *data,int pkt_len)
43 #define DUMP_HDR_SIZE 20
44 #define DUMP_TLR_SIZE 8
45 if (pkt_len) {
46 int i,len1,len2;
48 printk(KERN_DEBUG "%s: length=%d,data=",name,pkt_len);
50 if (pkt_len > DUMP_HDR_SIZE+ DUMP_TLR_SIZE) {
51 len1 = DUMP_HDR_SIZE;
52 len2 = DUMP_TLR_SIZE;
53 } else {
54 len1 = pkt_len > DUMP_HDR_SIZE ? DUMP_HDR_SIZE : pkt_len;
55 len2 = 0;
57 for (i = 0; i < len1; ++i) {
58 printk ("%.2x", data[i]);
60 if (len2) {
61 printk ("..");
62 for (i = pkt_len-DUMP_TLR_SIZE; i < pkt_len; ++i) {
63 printk ("%.2x", data[i]);
66 printk ("\n");
68 #undef DUMP_HDR_SIZE
69 #undef DUMP_TLR_SIZE
72 #else
74 #define DBG(level, format, arg...) do {} while (0)
75 #define DBG_PACKET(level,data,count) do {} while (0)
76 #define DBG_SKB(level,skb) do {} while (0)
78 #endif
80 #endif