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