[stm32l475] port for LVGL

bsp/stm32/stm32f103-blue-pill/applications/SConscript

@@ -1,11 +1,16 @@
-Import('RTT_ROOT')
-Import('rtconfig')
 from building import *
+import os
 
 cwd = GetCurrentDir()
 src = Glob('*.c')
-CPPPATH = [cwd, ]
+CPPPATH = [cwd]
 
 group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
 
+list = os.listdir(cwd)
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        group = group + SConscript(os.path.join(d, 'SConscript'))
+
 Return('group')

bsp/stm32/stm32f407-atk-explorer/applications/SConscript

@@ -1,12 +1,9 @@
-import rtconfig
-import os
 from building import *
+import os
 
 cwd     = GetCurrentDir()
-CPPPATH = [cwd, str(Dir('#'))]
-src     = Split("""
-main.c
-""")
+CPPPATH = [cwd]
+src = Glob('*.c')
 
 group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
 

bsp/stm32/stm32l475-atk-pandora/applications/SConscript

@@ -1,19 +1,26 @@
 from building import *
+import os
 
-cwd     = GetCurrentDir()
+cwd = GetCurrentDir()
 
 src = Split('''
 main.c
 ''')
 
-if GetDepend(['BSP_USING_SPI_LCD']):
+if GetDepend(['BSP_USING_LCD_SAMPLE']):
     src += ['lcd_sample.c']
 
 if GetDepend(['PKG_USING_NRF24L01']):
     src += ['nrf24l01_init.c']
 
-CPPPATH = [str(Dir('#')), cwd]
+CPPPATH = [cwd]
 
 group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
 
+list = os.listdir(cwd)
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        group = group + SConscript(os.path.join(d, 'SConscript'))
+
 Return('group')

bsp/stm32/stm32l475-atk-pandora/applications/lcd_sample.c

@@ -11,8 +11,6 @@
 #include <rtthread.h>
 #include <rtdevice.h>
 #include <board.h>
-
-#ifdef BSP_USING_SPI_LCD
 #include <drv_lcd.h>
 #include <rttlogo.h>
 
@@ -45,4 +43,3 @@ static int lcd_sample(void)
     return RT_EOK;
 }
 INIT_APP_EXPORT(lcd_sample);
-#endif /* BSP_USING_SPI_LCD */

bsp/stm32/stm32l475-atk-pandora/board/Kconfig

@@ -35,6 +35,18 @@ menu "Onboard Peripheral Drivers"
         select BSP_USING_SPI3
         default n
 
+    config BSP_USING_LCD_SAMPLE
+        bool "Enable LCD sample"
+        depends on BSP_USING_SPI_LCD
+        depends on !BSP_USING_LVGL
+        default n
+
+    config BSP_USING_LVGL
+        bool "Enable LVGL for LCD"
+        select BSP_USING_SPI_LCD
+        select PKG_USING_LVGL
+        default n
+
     config BSP_USING_SDCARD
         bool "Enable SDCARD (spi1)"
         select BSP_USING_SPI

bsp/stm32/stm32l475-atk-pandora/board/ports/drv_lcd.c

@@ -8,17 +8,17 @@
  * 2018-08-14    flybreak           the first version
  * 2018-09-18    balanceTWK         add sleep mode function
  * 2018-09-27    ZYLX               optimized display speed
+ * 2021-10-17    Meco Man           add lcd_fill_array()
  */
 
 #include <rtdevice.h>
 #include "drv_spi.h"
-#include "drv_lcd.h"
+#include <drv_lcd.h>
 #include "drv_lcd_font.h"
-#include "drv_gpio.h"
+#include <drv_gpio.h>
 
-#define DBG_SECTION_NAME    "LCD"
-#define DBG_COLOR
-#define DBG_LEVEL           DBG_LOG
+#define DBG_TAG    "drv.lcd"
+#define DBG_LVL    DBG_INFO
 #include <rtdbg.h>
 
 #define LCD_PWR_PIN           GET_PIN(B, 7)
@@ -375,7 +375,7 @@ void lcd_fill(rt_uint16_t x_start, rt_uint16_t y_start, rt_uint16_t x_end, rt_ui
     rt_uint32_t size = 0, size_remain = 0;
     rt_uint8_t *fill_buf = RT_NULL;
 
-    size = (x_end - x_start) * (y_end - y_start) * 2;
+    size = (x_end - x_start + 1) * (y_end - y_start + 1) * 2;
 
     if (size > LCD_CLEAR_SEND_NUMBER)
     {
@@ -426,6 +426,55 @@ void lcd_fill(rt_uint16_t x_start, rt_uint16_t y_start, rt_uint16_t x_end, rt_ui
     }
 }
 
+/**
+ * full color array on the lcd.
+ *
+ * @param   x_start     start of x position
+ * @param   y_start     start of y position
+ * @param   x_end       end of x position
+ * @param   y_end       end of y position
+ * @param   color       Fill color array's pointer
+ *
+ * @return  void
+ */
+void lcd_fill_array(rt_uint16_t x_start, rt_uint16_t y_start, rt_uint16_t x_end, rt_uint16_t y_end, void *pcolor)
+{
+    rt_uint32_t size = 0, size_remain = 0;
+
+    size = (x_end - x_start + 1) * (y_end - y_start + 1) * 2;
+
+    if (size > LCD_CLEAR_SEND_NUMBER)
+    {
+        /* the number of remaining to be filled */
+        size_remain = size - LCD_CLEAR_SEND_NUMBER;
+        size = LCD_CLEAR_SEND_NUMBER;
+    }
+
+    lcd_address_set(x_start, y_start, x_end, y_end);
+
+    /* fast fill */
+    while (1)
+    {
+        rt_pin_write(LCD_DC_PIN, PIN_HIGH);
+        rt_spi_send(spi_dev_lcd, pcolor, size);
+
+        /* Fill completed */
+        if (size_remain == 0)
+            break;
+
+        /* calculate the number of fill next time */
+        if (size_remain > LCD_CLEAR_SEND_NUMBER)
+        {
+            size_remain = size_remain - LCD_CLEAR_SEND_NUMBER;
+        }
+        else
+        {
+            size = size_remain;
+            size_remain = 0;
+        }
+    }
+}
+
 /**
  * display a line on the lcd.
  *

bsp/stm32/stm32l475-atk-pandora/board/ports/drv_lcd.h

@@ -50,7 +50,7 @@ void lcd_draw_circle(rt_uint16_t x0, rt_uint16_t y0, rt_uint8_t r);
 void lcd_draw_line(rt_uint16_t x1, rt_uint16_t y1, rt_uint16_t x2, rt_uint16_t y2);
 void lcd_draw_rectangle(rt_uint16_t x1, rt_uint16_t y1, rt_uint16_t x2, rt_uint16_t y2);
 void lcd_fill(rt_uint16_t x_start, rt_uint16_t y_start, rt_uint16_t x_end, rt_uint16_t y_end, rt_uint16_t color);
-
+void lcd_fill_array(rt_uint16_t x_start, rt_uint16_t y_start, rt_uint16_t x_end, rt_uint16_t y_end, void *pcolor);
 void lcd_show_num(rt_uint16_t x, rt_uint16_t y, rt_uint32_t num, rt_uint8_t len, rt_uint32_t size);
 rt_err_t lcd_show_string(rt_uint16_t x, rt_uint16_t y, rt_uint32_t size, const char *fmt, ...);
 rt_err_t lcd_show_image(rt_uint16_t x, rt_uint16_t y, rt_uint16_t length, rt_uint16_t wide, const rt_uint8_t *p);

bsp/stm32/stm32l475-atk-pandora/board/ports/lvgl/SConscript

@@ -0,0 +1,9 @@
+from building import *
+
+cwd = GetCurrentDir()
+
+src = Glob('*.c')
+CPPPATH = [cwd]
+
+group = DefineGroup('LVGL', src, depend = ['BSP_USING_LVGL'], CPPPATH = CPPPATH)
+Return('group')

bsp/stm32/stm32l475-atk-pandora/board/ports/lvgl/lv_conf.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author        Notes
+ * 2021-10-18     Meco Man      First version
+ */
+
+#ifndef LV_CONF_H
+#define LV_CONF_H
+
+#define LV_COLOR_16_SWAP 1
+
+#endif

bsp/stm32/stm32l475-atk-pandora/board/ports/lvgl/lvgl_demo.c

@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author        Notes
+ * 2021-10-17     Meco Man      First version
+ */
+
+#include <rtthread.h>
+#include <lvgl.h>
+#include <drv_lcd.h>
+#define DBG_TAG    "LVGL"
+#define DBG_LVL    DBG_INFO
+#include <rtdbg.h>
+
+#ifndef LV_THREAD_STACK_SIZE
+#define LV_THREAD_STACK_SIZE 2048
+#endif
+
+#ifndef LV_THREAD_PRIO
+#define LV_THREAD_PRIO (RT_THREAD_PRIORITY_MAX*2/3)
+#endif
+
+static void lv_example_get_started_1(void);
+static void lv_example_get_started_3(void);
+
+#define MY_DISP_HOR_RES 240 /* 240*240 */
+
+/*A static or global variable to store the buffers*/
+static lv_disp_draw_buf_t disp_buf;
+
+/*Static or global buffer(s). The second buffer is optional*/
+static lv_color_t buf_1[MY_DISP_HOR_RES * 10];
+static lv_color_t buf_2[MY_DISP_HOR_RES * 10];
+
+static lv_disp_drv_t disp_drv;  /*Descriptor of a display driver*/
+
+/*Flush the content of the internal buffer the specific area on the display
+ *You can use DMA or any hardware acceleration to do this operation in the background but
+ *'lv_disp_flush_ready()' has to be called when finished.*/
+static void disp_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p)
+{
+    lcd_fill_array(area->x1, area->y1, area->x2, area->y2, color_p);
+
+    /*IMPORTANT!!!
+     *Inform the graphics library that you are ready with the flushing*/
+    lv_disp_flush_ready(disp_drv);
+}
+
+static void lvgl_thread(void *parameter)
+{
+    lv_init();
+
+    /*Initialize `disp_buf` with the buffer(s). With only one buffer use NULL instead buf_2 */
+    lv_disp_draw_buf_init(&disp_buf, buf_1, buf_2, MY_DISP_HOR_RES*10);
+
+    lv_disp_drv_init(&disp_drv); /*Basic initialization*/
+
+    /*Set the resolution of the display*/
+    disp_drv.hor_res = MY_DISP_HOR_RES;
+    disp_drv.ver_res = MY_DISP_HOR_RES;
+
+    /*Set a display buffer*/
+    disp_drv.draw_buf = &disp_buf;
+
+    /*Used to copy the buffer's content to the display*/
+    disp_drv.flush_cb = disp_flush;
+
+    /*Finally register the driver*/
+    lv_disp_drv_register(&disp_drv);
+
+    lv_example_get_started_1();
+    lv_example_get_started_3();
+
+    while(1)
+    {
+        lv_task_handler();
+        rt_thread_mdelay(10);
+    }
+}
+
+static int lvgl_demo_init(void)
+{
+    rt_thread_t tid;
+
+    tid = rt_thread_create("lvgl", lvgl_thread, RT_NULL, LV_THREAD_STACK_SIZE, LV_THREAD_PRIO, 0);
+    rt_thread_startup(tid);
+
+    return 0;
+}
+INIT_COMPONENT_EXPORT(lvgl_demo_init);
+
+/* ------------------- demo1 ----------------------- */
+
+static void btn_event_cb(lv_event_t * e)
+{
+    lv_event_code_t code = lv_event_get_code(e);
+    lv_obj_t * btn = lv_event_get_target(e);
+    if(code == LV_EVENT_CLICKED) {
+        static uint8_t cnt = 0;
+        cnt++;
+
+        /*Get the first child of the button which is the label and change its text*/
+        lv_obj_t * label = lv_obj_get_child(btn, 0);
+        lv_label_set_text_fmt(label, "Button: %d", cnt);
+    }
+}
+
+/**
+ * Create a button with a label and react on click event.
+ */
+static void lv_example_get_started_1(void)
+{
+    lv_obj_t * btn = lv_btn_create(lv_scr_act());     /*Add a button the current screen*/
+    lv_obj_set_pos(btn, 10, 10);                            /*Set its position*/
+    lv_obj_set_size(btn, 120, 50);                          /*Set its size*/
+    lv_obj_add_event_cb(btn, btn_event_cb, LV_EVENT_ALL, NULL);           /*Assign a callback to the button*/
+
+    lv_obj_t * label = lv_label_create(btn);          /*Add a label to the button*/
+    lv_label_set_text(label, "Button");                     /*Set the labels text*/
+    lv_obj_center(label);
+}
+
+/* ------------------- demo3 ----------------------- */
+
+static lv_obj_t * label;
+
+static void slider_event_cb(lv_event_t * e)
+{
+    lv_obj_t * slider = lv_event_get_target(e);
+
+    /*Refresh the text*/
+    lv_label_set_text_fmt(label, "%d", (int)lv_slider_get_value(slider));
+    lv_obj_align_to(label, slider, LV_ALIGN_OUT_TOP_MID, 0, -15);    /*Align top of the slider*/
+}
+
+/**
+ * Create a slider and write its value on a label.
+ */
+static void lv_example_get_started_3(void)
+{
+    /*Create a slider in the center of the display*/
+    lv_obj_t * slider = lv_slider_create(lv_scr_act());
+    lv_obj_set_width(slider, 200);                          /*Set the width*/
+    lv_obj_center(slider);                                  /*Align to the center of the parent (screen)*/
+    lv_obj_add_event_cb(slider, slider_event_cb, LV_EVENT_VALUE_CHANGED, NULL);     /*Assign an event function*/
+
+    /*Create a label below the slider*/
+    label = lv_label_create(lv_scr_act());
+    lv_label_set_text(label, "0");
+    lv_obj_align_to(label, slider, LV_ALIGN_OUT_TOP_MID, 0, -15);    /*Align top of the slider*/
+}