acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_log.c (3833B)
      1 /**
      2  * @file lv_log.c
      3  *
      4  */
      5 
      6 /*********************
      7  *      INCLUDES
      8  *********************/
      9 #include "lv_log.h"
     10 #if LV_USE_LOG
     11 
     12 #include <stdarg.h>
     13 #include <string.h>
     14 #include "lv_printf.h"
     15 #include "../hal/lv_hal_tick.h"
     16 
     17 #if LV_LOG_PRINTF
     18     #include <stdio.h>
     19 #endif
     20 
     21 /*********************
     22  *      DEFINES
     23  *********************/
     24 
     25 /**********************
     26  *      TYPEDEFS
     27  **********************/
     28 
     29 /**********************
     30  *  STATIC PROTOTYPES
     31  **********************/
     32 
     33 /**********************
     34  *  STATIC VARIABLES
     35  **********************/
     36 static lv_log_print_g_cb_t custom_print_cb;
     37 
     38 /**********************
     39  *      MACROS
     40  **********************/
     41 
     42 /**********************
     43  *   GLOBAL FUNCTIONS
     44  **********************/
     45 
     46 /**
     47  * Register custom print/write function to call when a log is added.
     48  * It can format its "File path", "Line number" and "Description" as required
     49  * and send the formatted log message to a console or serial port.
     50  * @param print_cb a function pointer to print a log
     51  */
     52 void lv_log_register_print_cb(lv_log_print_g_cb_t print_cb)
     53 {
     54     custom_print_cb = print_cb;
     55 }
     56 
     57 /**
     58  * Add a log
     59  * @param level the level of log. (From `lv_log_level_t` enum)
     60  * @param file name of the file when the log added
     61  * @param line line number in the source code where the log added
     62  * @param func name of the function when the log added
     63  * @param format printf-like format string
     64  * @param ... parameters for `format`
     65  */
     66 void _lv_log_add(lv_log_level_t level, const char * file, int line, const char * func, const char * format, ...)
     67 {
     68     if(level >= _LV_LOG_LEVEL_NUM) return; /*Invalid level*/
     69 
     70     static uint32_t last_log_time = 0;
     71 
     72     if(level >= LV_LOG_LEVEL) {
     73         va_list args;
     74         va_start(args, format);
     75 
     76         /*Use only the file name not the path*/
     77         size_t p;
     78         for(p = strlen(file); p > 0; p--) {
     79             if(file[p] == '/' || file[p] == '\\') {
     80                 p++;    /*Skip the slash*/
     81                 break;
     82             }
     83         }
     84 
     85         uint32_t t = lv_tick_get();
     86         static const char * lvl_prefix[] = {"Trace", "Info", "Warn", "Error", "User"};
     87 
     88 #if LV_LOG_PRINTF
     89         printf("[%s]\t(%" LV_PRId32 ".%03" LV_PRId32 ", +%" LV_PRId32 ")\t %s: ",
     90                lvl_prefix[level], t / 1000, t % 1000, t - last_log_time, func);
     91         vprintf(format, args);
     92         printf(" \t(in %s line #%d)\n", &file[p], line);
     93 #else
     94         if(custom_print_cb) {
     95             char buf[512];
     96 #if LV_SPRINTF_CUSTOM
     97             char msg[256];
     98             lv_vsnprintf(msg, sizeof(msg), format, args);
     99             lv_snprintf(buf, sizeof(buf), "[%s]\t(%" LV_PRId32 ".%03" LV_PRId32 ", +%" LV_PRId32 ")\t %s: %s \t(in %s line #%d)\n",
    100                         lvl_prefix[level], t / 1000, t % 1000, t - last_log_time, func, msg, &file[p], line);
    101 #else
    102             lv_vaformat_t vaf = {format, &args};
    103             lv_snprintf(buf, sizeof(buf), "[%s]\t(%" LV_PRId32 ".%03" LV_PRId32 ", +%" LV_PRId32 ")\t %s: %pV \t(in %s line #%d)\n",
    104                         lvl_prefix[level], t / 1000, t % 1000, t - last_log_time, func, (void *)&vaf, &file[p], line);
    105 #endif
    106             custom_print_cb(buf);
    107         }
    108 #endif
    109 
    110         last_log_time = t;
    111         va_end(args);
    112     }
    113 }
    114 
    115 void lv_log(const char * format, ...)
    116 {
    117     if(LV_LOG_LEVEL >= LV_LOG_LEVEL_NONE) return; /* disable log */
    118 
    119     va_list args;
    120     va_start(args, format);
    121 
    122 #if LV_LOG_PRINTF
    123     vprintf(format, args);
    124 #else
    125     if(custom_print_cb) {
    126         char buf[512];
    127 #if LV_SPRINTF_CUSTOM
    128         lv_vsnprintf(buf, sizeof(buf), format, args);
    129 #else
    130         lv_vaformat_t vaf = {format, &args};
    131         lv_snprintf(buf, sizeof(buf), "%pV", (void *)&vaf);
    132 #endif
    133         custom_print_cb(buf);
    134     }
    135 #endif
    136 
    137     va_end(args);
    138 }
    139 
    140 /**********************
    141  *   STATIC FUNCTIONS
    142  **********************/
    143 
    144 #endif /*LV_USE_LOG*/