1 /*
2 * Copyright (c) 2006-2021, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 */
9 #include <rtthread.h>
10 #include <rtdevice.h>
11
12 #include "LPC177x_8x.h"
13 #include "lpc177x_8x_pinsel.h"
14
15 #include "drv_glcd.h"
16
17 #define RT_HW_LCD_WIDTH 480
18 #define RT_HW_LCD_HEIGHT 272
19
20 static struct rt_device_graphic_info _lcd_info;
21 static struct rt_device lcd;
22
23 /* RT-Thread Device Interface */
rt_lcd_init(rt_device_t dev)24 static rt_err_t rt_lcd_init (rt_device_t dev)
25 {
26 PINSEL_ConfigPin(5, 4, 0);
27 LPC_GPIO5->DIR |= 1<<4;
28 LPC_GPIO5->CLR = 1<<4;
29 LPC_GPIO5->SET = 1<<4;
30
31 /*Disable LCD controller*/
32 GLCD_Ctrl (FALSE);
33 /*Init LCD and copy picture in video RAM*/
34 GLCD_Init (_lcd_info.framebuffer);
35 /*Enable LCD*/
36 GLCD_Ctrl (TRUE);
37
38 return RT_EOK;
39 }
40
rt_lcd_control(rt_device_t dev,int cmd,void * args)41 static rt_err_t rt_lcd_control (rt_device_t dev, int cmd, void *args)
42 {
43 switch (cmd)
44 {
45 case RTGRAPHIC_CTRL_RECT_UPDATE:
46 break;
47 case RTGRAPHIC_CTRL_POWERON:
48 break;
49 case RTGRAPHIC_CTRL_POWEROFF:
50 break;
51 case RTGRAPHIC_CTRL_GET_INFO:
52 rt_memcpy(args, &_lcd_info, sizeof(_lcd_info));
53 break;
54 case RTGRAPHIC_CTRL_SET_MODE:
55 break;
56 }
57
58 return RT_EOK;
59 }
60
61
62 /* LCD BL P5_4 */
rt_hw_lcd_init(void)63 void rt_hw_lcd_init(void)
64 {
65 rt_uint16_t * _rt_framebuffer = RT_NULL;
66
67 // _rt_framebuffer = rt_malloc_align(sizeof(rt_uint16_t)*RT_HW_LCD_HEIGHT*RT_HW_LCD_WIDTH, 8);
68 // if (_rt_framebuffer == RT_NULL) return; /* no memory yet */
69
70 _rt_framebuffer = (rt_uint16_t *)0xA0000000;
71
72 _lcd_info.bits_per_pixel = 16;
73 _lcd_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565;
74 _lcd_info.framebuffer = (void*)_rt_framebuffer;
75 _lcd_info.width = RT_HW_LCD_WIDTH;
76 _lcd_info.height = RT_HW_LCD_HEIGHT;
77
78 /* init device structure */
79 lcd.type = RT_Device_Class_Graphic;
80 lcd.init = rt_lcd_init;
81 lcd.open = RT_NULL;
82 lcd.close = RT_NULL;
83 lcd.control = rt_lcd_control;
84 lcd.user_data = (void*)&_lcd_info;
85
86 /* register lcd device to RT-Thread */
87 rt_device_register(&lcd, "lcd", RT_DEVICE_FLAG_RDWR);
88 }
89
lcd_fill(uint8_t * start,uint8_t * end,uint8_t pixel)90 void lcd_fill(uint8_t * start, uint8_t * end, uint8_t pixel)
91 {
92 while(start<end)
93 {
94 *start++ = pixel;
95 }
96 }
97 #ifdef RT_USING_FINSH
98 #include <finsh.h>
99 FINSH_FUNCTION_EXPORT(lcd_fill, lcd_fill );
100 #endif
101