/* * 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