convert lvgl from submodule to a plain old directory

2 files changed, 144 insertions, 0 deletions

diff --git a/lib/lvgl b/lib/lvgl
deleted file mode 160000
-Subproject 0732400e7b564dd0e7dc4a924619d8e19c5b23a
diff --git a/lib/lvgl/src/misc/lv_log.c b/lib/lvgl/src/misc/lv_log.c
new file mode 100644
index 00000000..d79463f2
--- /dev/null
+++ b/lib/lvgl/src/misc/lv_log.c
@@ -0,0 +1,144 @@
+/**
+ * @file lv_log.c
+ *
+ */
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "lv_log.h"
+#if LV_USE_LOG
+
+#include <stdarg.h>
+#include <string.h>
+#include "lv_printf.h"
+#include "../hal/lv_hal_tick.h"
+
+#if LV_LOG_PRINTF
+    #include <stdio.h>
+#endif
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ *  STATIC PROTOTYPES
+ **********************/
+
+/**********************
+ *  STATIC VARIABLES
+ **********************/
+static lv_log_print_g_cb_t custom_print_cb;
+
+/**********************
+ *      MACROS
+ **********************/
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+/**
+ * Register custom print/write function to call when a log is added.
+ * It can format its "File path", "Line number" and "Description" as required
+ * and send the formatted log message to a console or serial port.
+ * @param print_cb a function pointer to print a log
+ */
+void lv_log_register_print_cb(lv_log_print_g_cb_t print_cb)
+{
+    custom_print_cb = print_cb;
+}
+
+/**
+ * Add a log
+ * @param level the level of log. (From `lv_log_level_t` enum)
+ * @param file name of the file when the log added
+ * @param line line number in the source code where the log added
+ * @param func name of the function when the log added
+ * @param format printf-like format string
+ * @param ... parameters for `format`
+ */
+void _lv_log_add(lv_log_level_t level, const char * file, int line, const char * func, const char * format, ...)
+{
+    if(level >= _LV_LOG_LEVEL_NUM) return; /*Invalid level*/
+
+    static uint32_t last_log_time = 0;
+
+    if(level >= LV_LOG_LEVEL) {
+        va_list args;
+        va_start(args, format);
+
+        /*Use only the file name not the path*/
+        size_t p;
+        for(p = strlen(file); p > 0; p--) {
+            if(file[p] == '/' || file[p] == '\\') {
+                p++;    /*Skip the slash*/
+                break;
+            }
+        }
+
+        uint32_t t = lv_tick_get();
+        static const char * lvl_prefix[] = {"Trace", "Info", "Warn", "Error", "User"};
+
+#if LV_LOG_PRINTF
+        printf("[%s]\t(%" LV_PRId32 ".%03" LV_PRId32 ", +%" LV_PRId32 ")\t %s: ",
+               lvl_prefix[level], t / 1000, t % 1000, t - last_log_time, func);
+        vprintf(format, args);
+        printf(" \t(in %s line #%d)\n", &file[p], line);
+#else
+        if(custom_print_cb) {
+            char buf[512];
+#if LV_SPRINTF_CUSTOM
+            char msg[256];
+            lv_vsnprintf(msg, sizeof(msg), format, args);
+            lv_snprintf(buf, sizeof(buf), "[%s]\t(%" LV_PRId32 ".%03" LV_PRId32 ", +%" LV_PRId32 ")\t %s: %s \t(in %s line #%d)\n",
+                        lvl_prefix[level], t / 1000, t % 1000, t - last_log_time, func, msg, &file[p], line);
+#else
+            lv_vaformat_t vaf = {format, &args};
+            lv_snprintf(buf, sizeof(buf), "[%s]\t(%" LV_PRId32 ".%03" LV_PRId32 ", +%" LV_PRId32 ")\t %s: %pV \t(in %s line #%d)\n",
+                        lvl_prefix[level], t / 1000, t % 1000, t - last_log_time, func, (void *)&vaf, &file[p], line);
+#endif
+            custom_print_cb(buf);
+        }
+#endif
+
+        last_log_time = t;
+        va_end(args);
+    }
+}
+
+void lv_log(const char * format, ...)
+{
+    if(LV_LOG_LEVEL >= LV_LOG_LEVEL_NONE) return; /* disable log */
+
+    va_list args;
+    va_start(args, format);
+
+#if LV_LOG_PRINTF
+    vprintf(format, args);
+#else
+    if(custom_print_cb) {
+        char buf[512];
+#if LV_SPRINTF_CUSTOM
+        lv_vsnprintf(buf, sizeof(buf), format, args);
+#else
+        lv_vaformat_t vaf = {format, &args};
+        lv_snprintf(buf, sizeof(buf), "%pV", (void *)&vaf);
+#endif
+        custom_print_cb(buf);
+    }
+#endif
+
+    va_end(args);
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+#endif /*LV_USE_LOG*/