feat(nuttx): add builtin profiler adaptation (#5415)

Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>
Co-authored-by: pengyiqiang <pengyiqiang@xiaomi.com>

src/drivers/nuttx/lv_nuttx_entry.c

@@ -14,6 +14,7 @@
 #include <nuttx/tls.h>
 #include <syslog.h>
 #include "lv_nuttx_cache.h"
+#include "lv_nuttx_profiler.h"
 
 #include "../../../lvgl.h"
 
@@ -98,6 +99,10 @@ void lv_nuttx_init(const lv_nuttx_dsc_t * dsc, lv_nuttx_result_t * result)
 
     lv_nuttx_cache_init();
 
+#if LV_USE_PROFILER && LV_USE_PROFILER_BUILTIN
+    lv_nuttx_profiler_init();
+#endif
+
     if(result) {
         lv_memzero(result, sizeof(lv_nuttx_result_t));
     }

src/drivers/nuttx/lv_nuttx_profiler.c

@@ -0,0 +1,96 @@
+/**
+ * @file lv_nuttx_profiler.c
+ *
+ */
+
+/*********************
+ *      INCLUDES
+ *********************/
+
+#include "lv_nuttx_profiler.h"
+#include "../../../lvgl.h"
+
+#if LV_USE_PROFILER && LV_USE_PROFILER_BUILTIN
+
+#include <nuttx/arch.h>
+#include <stdio.h>
+
+/*********************
+ *      DEFINES
+ *********************/
+
+#define TICK_TO_USEC(tick) ((tick) / cpu_freq)
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ *  STATIC PROTOTYPES
+ **********************/
+
+static uint32_t cpu_freq = 0; /* MHz */
+
+/**********************
+ *  STATIC VARIABLES
+ **********************/
+
+static uint32_t tick_get_cb(void);
+static void flush_cb(const char * buf);
+
+/**********************
+ *      MACROS
+ **********************/
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+void lv_nuttx_profiler_init(void)
+{
+    cpu_freq = (uint32_t)up_perf_getfreq() / 1000000;
+    if(cpu_freq == 0) {
+        LV_LOG_ERROR("Failed to get CPU frequency");
+        return;
+    }
+    LV_LOG_USER("CPU frequency: %" LV_PRIu32 " MHz", cpu_freq);
+
+    lv_profiler_builtin_config_t config;
+    lv_profiler_builtin_config_init(&config);
+    config.tick_per_sec = 1000000; /* 1 sec = 1000000 usec */
+    config.tick_get_cb = tick_get_cb;
+    config.flush_cb = flush_cb;
+    lv_profiler_builtin_init(&config);
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+static uint32_t tick_get_cb(void)
+{
+    static uint32_t prev_tick = 0;
+    static uint32_t cur_tick_us = 0;
+    uint32_t act_time = up_perf_gettime();
+    uint32_t elaps;
+
+    /*If there is no overflow in sys_time simple subtract*/
+    if(act_time >= prev_tick) {
+        elaps = act_time - prev_tick;
+    }
+    else {
+        elaps = UINT32_MAX - prev_tick + 1;
+        elaps += act_time;
+    }
+
+    cur_tick_us += TICK_TO_USEC(elaps);
+    prev_tick = act_time;
+    return cur_tick_us;
+}
+
+static void flush_cb(const char * buf)
+{
+    printf("%s", buf);
+}
+
+#endif

src/drivers/nuttx/lv_nuttx_profiler.h

@@ -0,0 +1,39 @@
+/**
+ * @file lv_nuttx_profiler.h
+ *
+ */
+
+#ifndef LV_NUTTX_PROFILER_H
+#define LV_NUTTX_PROFILER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+void lv_nuttx_profiler_init(void);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#ifdef __cplusplus
+} /*extern "C"*/
+#endif
+
+#endif /*LV_NUTTX_PROFILER_H*/