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/*
* Common debugging macros for use with the hisax driver
*
* Author Frode Isaksen
* Copyright 2001 by Frode Isaksen <fisaksen@bewan.com>
* 2001 by Kai Germaschewski <kai.germaschewski@gmx.de>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
* How to use:
*
* Before including this file, you need to
* #define __debug_variable my_debug
* where my_debug is a variable in your code which
* determines the debug bitmask.
*
* If CONFIG_HISAX_DEBUG is not set, all macros evaluate to nothing
*
*/
#ifndef __HISAX_DEBUG_H__
#define __HISAX_DEBUG_H__
#ifdef CONFIG_HISAX_DEBUG
#define DBG(level, format, arg...) do { \
if (level & __debug_variable) \
printk(KERN_DEBUG "%s: " format "\n" , __func__ , ## arg); \
} while (0)
#define DBG_PACKET(level, data, count) \
if (level & __debug_variable) dump_packet(__func__, data, count)
#define DBG_SKB(level, skb) \
if ((level & __debug_variable) && skb) dump_packet(__func__, skb->data, skb->len)
static void __attribute__((unused))
dump_packet(const char *name, const u_char *data, int pkt_len)
{
#define DUMP_HDR_SIZE 20
#define DUMP_TLR_SIZE 8
if (pkt_len) {
int i, len1, len2;
printk(KERN_DEBUG "%s: length=%d,data=", name, pkt_len);
if (pkt_len > DUMP_HDR_SIZE + DUMP_TLR_SIZE) {
len1 = DUMP_HDR_SIZE;
len2 = DUMP_TLR_SIZE;
} else {
len1 = pkt_len > DUMP_HDR_SIZE ? DUMP_HDR_SIZE : pkt_len;
len2 = 0;
}
for (i = 0; i < len1; ++i) {
printk("%.2x", data[i]);
}
if (len2) {
printk("..");
for (i = pkt_len-DUMP_TLR_SIZE; i < pkt_len; ++i) {
printk("%.2x", data[i]);
}
}
printk("\n");
}
#undef DUMP_HDR_SIZE
#undef DUMP_TLR_SIZE
}
#else
#define DBG(level, format, arg...) do {} while (0)
#define DBG_PACKET(level, data, count) do {} while (0)
#define DBG_SKB(level, skb) do {} while (0)
#endif
#endif
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