sound/pci/asihpi/hpidebug.h

   1 /*****************************************************************************
   2
   3     AudioScience HPI driver
   4     Copyright (C) 1997-2010  AudioScience Inc. <support@audioscience.com>
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of version 2 of the GNU General Public License as
   8     published by the Free Software Foundation;
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18
  19 Debug macros.
  20
  21 *****************************************************************************/
  22
  23 #ifndef _HPIDEBUG_H
  24 #define _HPIDEBUG_H
  25
  26 #include "hpi_internal.h"
  27
  28 /* Define debugging levels.  */
  29 enum { HPI_DEBUG_LEVEL_ERROR = 0,       /* always log errors */
  30         HPI_DEBUG_LEVEL_WARNING = 1,
  31         HPI_DEBUG_LEVEL_NOTICE = 2,
  32         HPI_DEBUG_LEVEL_INFO = 3,
  33         HPI_DEBUG_LEVEL_DEBUG = 4,
  34         HPI_DEBUG_LEVEL_VERBOSE = 5     /* same printk level as DEBUG */
  35 };
  36
  37 #define HPI_DEBUG_LEVEL_DEFAULT HPI_DEBUG_LEVEL_NOTICE
  38
  39 /* an OS can define an extra flag string that is appended to
  40    the start of each message, eg see linux kernel hpios.h */
  41
  42 #ifdef SOURCEFILE_NAME
  43 #define FILE_LINE  SOURCEFILE_NAME ":" __stringify(__LINE__) " "
  44 #else
  45 #define FILE_LINE  __FILE__ ":" __stringify(__LINE__) " "
  46 #endif
  47
  48 #define HPI_DEBUG_ASSERT(expression) \
  49         do { \
  50                 if (!(expression)) { \
  51                         printk(KERN_ERR  FILE_LINE \
  52                                 "ASSERT " __stringify(expression)); \
  53                 } \
  54         } while (0)
  55
  56 #define HPI_DEBUG_LOG(level, ...) \
  57         do { \
  58                 if (hpi_debug_level >= HPI_DEBUG_LEVEL_##level) { \
  59                         printk(HPI_DEBUG_FLAG_##level \
  60                         FILE_LINE  __VA_ARGS__); \
  61                 } \
  62         } while (0)
  63
  64 void hpi_debug_init(void);
  65 int hpi_debug_level_set(int level);
  66 int hpi_debug_level_get(void);
  67 /* needed by Linux driver for dynamic debug level changes */
  68 extern int hpi_debug_level;
  69
  70 void hpi_debug_message(struct hpi_message *phm, char *sz_fileline);
  71
  72 void hpi_debug_data(u16 *pdata, u32 len);
  73
  74 #define HPI_DEBUG_DATA(pdata, len) \
  75         do { \
  76                 if (hpi_debug_level >= HPI_DEBUG_LEVEL_VERBOSE) \
  77                         hpi_debug_data(pdata, len); \
  78         } while (0)
  79
  80 #define HPI_DEBUG_MESSAGE(level, phm) \
  81         do { \
  82                 if (hpi_debug_level >= HPI_DEBUG_LEVEL_##level) { \
  83                         hpi_debug_message(phm, HPI_DEBUG_FLAG_##level \
  84                                 FILE_LINE __stringify(level)); \
  85                 } \
  86         } while (0)
  87
  88 #define HPI_DEBUG_RESPONSE(phr) \
  89         do { \
  90                 if (((hpi_debug_level >= HPI_DEBUG_LEVEL_DEBUG) && \
  91                         (phr->error)) ||\
  92                 (hpi_debug_level >= HPI_DEBUG_LEVEL_VERBOSE)) \
  93                         printk(KERN_DEBUG "HPI_RES%d,%d,%d\n", \
  94                                 phr->version, phr->error, phr->specific_error); \
  95         } while (0)
  96
  97 #ifndef compile_time_assert
  98 #define compile_time_assert(cond, msg) \
  99     typedef char msg[(cond) ? 1 : -1]
 100 #endif
 101
 102 #endif                          /* _HPIDEBUG_H_  */