mirror of
https://github.com/RIOT-OS/RIOT.git
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130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/*
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* Copyright (C) 2019 Inria
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup tests
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* @{
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*
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* @file
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* @brief LVGL example application
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*
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* @author Alexandre Abadie <alexandre.abadie@inria.fr>
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*
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* @}
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*/
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#include <string.h>
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#include "lvgl/lvgl.h"
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#include "lvgl_riot.h"
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#include "disp_dev.h"
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#define CPU_LABEL_COLOR "FF0000"
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#define MEM_LABEL_COLOR "0000FF"
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#define CHART_POINT_NUM 100
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/* Must be lower than LVGL_INACTIVITY_PERIOD_MS for autorefresh */
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#define REFR_TIME 200
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static lv_obj_t *win;
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static lv_obj_t *chart;
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static lv_chart_series_t * cpu_ser;
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static lv_chart_series_t *mem_ser;
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static lv_obj_t *info_label;
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static lv_timer_t *refr_task;
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static void sysmon_task(lv_timer_t *param)
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{
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(void)param;
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/* Get CPU and memory information */
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uint8_t cpu_busy = 100 - lv_timer_get_idle();
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lv_mem_monitor_t mem_mon;
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lv_mem_monitor(&mem_mon);
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uint8_t mem_used_pct = mem_mon.used_pct;
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/* Add the CPU and memory data to the chart */
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lv_chart_set_next_value(chart, cpu_ser, cpu_busy);
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lv_chart_set_next_value(chart, mem_ser, mem_used_pct);
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/* Set the text info */
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lv_label_set_text_fmt(info_label,
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"%s%s CPU: %d %%%s\n\n"
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LV_TXT_COLOR_CMD"%s MEMORY: %d %%"LV_TXT_COLOR_CMD"\n"
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"Total: %" PRIu32 " bytes\n"
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"Used: %" PRIu32 " bytes\n"
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"Free: %" PRIu32 " bytes\n"
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"Frag: %d %%",
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LV_TXT_COLOR_CMD,
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CPU_LABEL_COLOR,
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cpu_busy,
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LV_TXT_COLOR_CMD,
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MEM_LABEL_COLOR,
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mem_used_pct,
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mem_mon.total_size,
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mem_mon.total_size - mem_mon.free_size,
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mem_mon.free_size,
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mem_mon.frag_pct);
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/* Force a wakeup of lvgl when each task is called: this ensures an activity
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is triggered and wakes up lvgl during the next LVGL_INACTIVITY_PERIOD ms */
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lvgl_wakeup();
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}
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void sysmon_create(void)
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{
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lv_coord_t hres = lv_disp_get_hor_res(NULL);
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lv_coord_t vres = lv_disp_get_ver_res(NULL);
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win = lv_win_create(lv_scr_act(), 25);
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lv_win_add_title(win, "System monitor");
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lv_obj_t * cont = lv_win_get_content(win);
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/* Make the window content responsive */
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lv_obj_set_layout(cont, LV_LAYOUT_FLEX);
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/* Create a chart with two data lines */
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chart = lv_chart_create(cont);
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lv_obj_set_size(chart, hres * 10L / 25, vres / 2);
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lv_obj_set_pos(chart, LV_DPI_DEF / 10, LV_DPI_DEF / 10);
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lv_chart_set_point_count(chart, CHART_POINT_NUM);
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lv_chart_set_range(chart, LV_CHART_AXIS_PRIMARY_Y, 0, 100);
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lv_chart_set_type(chart, LV_CHART_TYPE_LINE);
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cpu_ser = lv_chart_add_series(chart, lv_palette_main(LV_PALETTE_RED), LV_CHART_AXIS_PRIMARY_Y);
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mem_ser = lv_chart_add_series(chart, lv_palette_main(LV_PALETTE_BLUE), LV_CHART_AXIS_PRIMARY_Y);
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/* Set the data series to zero */
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uint16_t i;
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for (i = 0; i < CHART_POINT_NUM; i++) {
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lv_chart_set_next_value(chart, cpu_ser, 0);
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lv_chart_set_next_value(chart, mem_ser, 0);
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}
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/* Create a label for the details of Memory and CPU usage */
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info_label = lv_label_create(cont);
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lv_label_set_recolor(info_label, true);
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/* Create the task used to refresh the chart and label */
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refr_task = lv_timer_create(sysmon_task, REFR_TIME, NULL);
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}
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int main(void)
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{
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/* Enable backlight */
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disp_dev_backlight_on();
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/* Create the system monitor widget */
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sysmon_create();
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lvgl_run();
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return 0;
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}
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