drivers/staging/rts5208/trace.h

   1 /* Driver for Realtek PCI-Express card reader
   2  * Header file
   3  *
   4  * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, see <http://www.gnu.org/licenses/>.
  18  *
  19  * Author:
  20  *   Wei WANG (wei_wang@realsil.com.cn)
  21  *   Micky Ching (micky_ching@realsil.com.cn)
  22  */
  23
  24 #ifndef __REALTEK_RTSX_TRACE_H
  25 #define __REALTEK_RTSX_TRACE_H
  26
  27 #define _MSG_TRACE
  28
  29 #ifdef _MSG_TRACE
  30 static inline char *filename(char *path)
  31 {
  32         char *ptr;
  33
  34         if (path == NULL)
  35                 return NULL;
  36
  37         ptr = path;
  38
  39         while (*ptr != '\0') {
  40                 if ((*ptr == '\\') || (*ptr == '/'))
  41                         path = ptr + 1;
  42
  43                 ptr++;
  44         }
  45
  46         return path;
  47 }
  48
  49 #define TRACE_RET(chip, ret)                                            \
  50         do {                                                            \
  51                 char *_file = filename(__FILE__);                       \
  52                 dev_dbg(rtsx_dev(chip), "[%s][%s]:[%d]\n", _file,       \
  53                         __func__, __LINE__);                            \
  54                 (chip)->trace_msg[(chip)->msg_idx].line = (u16)(__LINE__); \
  55                 strncpy((chip)->trace_msg[(chip)->msg_idx].func, __func__, MSG_FUNC_LEN-1); \
  56                 strncpy((chip)->trace_msg[(chip)->msg_idx].file, _file, MSG_FILE_LEN-1); \
  57                 get_current_time((chip)->trace_msg[(chip)->msg_idx].timeval_buf, TIME_VAL_LEN); \
  58                 (chip)->trace_msg[(chip)->msg_idx].valid = 1;           \
  59                 (chip)->msg_idx++;                                      \
  60                 if ((chip)->msg_idx >= TRACE_ITEM_CNT) {                \
  61                         (chip)->msg_idx = 0;                            \
  62                 }                                                       \
  63                 return ret;                                             \
  64         } while (0)
  65
  66 #define TRACE_GOTO(chip, label)                                         \
  67         do {                                                            \
  68                 char *_file = filename(__FILE__);                       \
  69                 dev_dbg(rtsx_dev(chip), "[%s][%s]:[%d]\n", _file,       \
  70                         __func__, __LINE__);                            \
  71                 (chip)->trace_msg[(chip)->msg_idx].line = (u16)(__LINE__); \
  72                 strncpy((chip)->trace_msg[(chip)->msg_idx].func, __func__, MSG_FUNC_LEN-1); \
  73                 strncpy((chip)->trace_msg[(chip)->msg_idx].file, _file, MSG_FILE_LEN-1); \
  74                 get_current_time((chip)->trace_msg[(chip)->msg_idx].timeval_buf, TIME_VAL_LEN); \
  75                 (chip)->trace_msg[(chip)->msg_idx].valid = 1;           \
  76                 (chip)->msg_idx++;                                      \
  77                 if ((chip)->msg_idx >= TRACE_ITEM_CNT) {                \
  78                         (chip)->msg_idx = 0;                            \
  79                 }                                                       \
  80                 goto label;                                             \
  81         } while (0)
  82 #else
  83 #define TRACE_RET(chip, ret)    return ret
  84 #define TRACE_GOTO(chip, label) goto label
  85 #endif
  86
  87 #endif  /* __REALTEK_RTSX_TRACE_H */