diff options
| author | Simon Glass <sjg@chromium.org> | 2021-05-08 07:00:06 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-06-08 11:39:09 -0400 |
| commit | 58b4b7133aba6fbb2409a975478157f9277c2e91 (patch) | |
| tree | 134665e40bcbbfd82b1e42729c11f00de345390d /include/log.h | |
| parent | 0cceb99ac59b1d383488ea3ce6511ffc01da5332 (diff) | |
log: Add support for logging a buffer
The print_buffer() function is very useful for debugging. Add a version
of this in the log system also.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/log.h')
| -rw-r--r-- | include/log.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/log.h b/include/log.h index add3a1e4a0..feb0204855 100644 --- a/include/log.h +++ b/include/log.h @@ -140,6 +140,24 @@ static inline int _log_nop(enum log_category_t cat, enum log_level_t level, return 0; } +/** + * _log_buffer - Internal function to print data buffer in hex and ascii form + * + * @cat: Category of log record (indicating which subsystem generated it) + * @level: Level of log record (indicating its severity) + * @file: File name of file where log record was generated + * @line: Line number in file where log record was generated + * @func: Function where log record was generated + * @addr: Starting address to display at start of line + * @data: pointer to data buffer + * @width: data value width. May be 1, 2, or 4. + * @count: number of values to display + * @linelen: Number of values to print per line; specify 0 for default length + */ +int _log_buffer(enum log_category_t cat, enum log_level_t level, + const char *file, int line, const char *func, ulong addr, + const void *data, uint width, uint count, uint linelen); + /* Define this at the top of a file to add a prefix to debug messages */ #ifndef pr_fmt #define pr_fmt(fmt) fmt @@ -200,8 +218,25 @@ static inline int _log_nop(enum log_category_t cat, enum log_level_t level, __LINE__, __func__, \ pr_fmt(_fmt), ##_args); \ }) + +/* Emit a dump if the level is less that the maximum */ +#define log_buffer(_cat, _level, _addr, _data, _width, _count, _linelen) ({ \ + int _l = _level; \ + if (_LOG_DEBUG != 0 || _l <= _LOG_MAX_LEVEL) \ + _log_buffer((enum log_category_t)(_cat), \ + (enum log_level_t)(_l | _LOG_DEBUG), __FILE__, \ + __LINE__, __func__, _addr, _data, \ + _width, _count, _linelen); \ + }) #else #define log(_cat, _level, _fmt, _args...) + +#define log_buffer(_cat, _level, _addr, _data, _width, _count, _linelen) ({ \ + int _l = _level; \ + if (_LOG_DEBUG != 0 || _l <= LOGL_INFO || \ + (_DEBUG && _l == LOGL_DEBUG)) \ + print_buffer(_addr, _data, _width, _count, _linelen); \ + }) #endif #define log_nop(_cat, _level, _fmt, _args...) ({ \ |