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 * 2010-01-01 bernard first version from QiuYi's driver
9 */
10
11 #include <rtthread.h>
12
13 #include <s3c24x0.h>
14
15 /* LCD driver for T3'5 */
16 #define LCD_WIDTH 240
17 #define LCD_HEIGHT 320
18 #define LCD_PIXCLOCK 4
19
20 #define LCD_RIGHT_MARGIN 25
21 #define LCD_LEFT_MARGIN 0
22 #define LCD_HSYNC_LEN 4
23
24 #define LCD_UPPER_MARGIN 1
25 #define LCD_LOWER_MARGIN 4
26 #define LCD_VSYNC_LEN 1
27
28 #define LCD_XSIZE LCD_WIDTH
29 #define LCD_YSIZE LCD_HEIGHT
30 #define SCR_XSIZE LCD_WIDTH
31 #define SCR_YSIZE LCD_HEIGHT
32
33 #define RT_HW_LCD_WIDTH LCD_WIDTH
34 #define RT_HW_LCD_HEIGHT LCD_HEIGHT
35
36 #define MVAL (13)
37 #define MVAL_USED (0) //0=each frame 1=rate by MVAL
38 #define INVVDEN (1) //0=normal 1=inverted
39 #define BSWP (0) //Byte swap control
40 #define HWSWP (1) //Half word swap control
41
42 #define GPB1_TO_OUT() (GPBUP &= 0xfffd, GPBCON &= 0xfffffff3, GPBCON |= 0x00000004)
43 #define GPB1_TO_1() (GPBDAT |= 0x0002)
44 #define GPB1_TO_0() (GPBDAT &= 0xfffd)
45
46 #define S3C2410_LCDCON1_CLKVAL(x) ((x) << 8)
47 #define S3C2410_LCDCON1_MMODE (1<<7)
48 #define S3C2410_LCDCON1_DSCAN4 (0<<5)
49 #define S3C2410_LCDCON1_STN4 (1<<5)
50 #define S3C2410_LCDCON1_STN8 (2<<5)
51 #define S3C2410_LCDCON1_TFT (3<<5)
52
53 #define S3C2410_LCDCON1_STN1BPP (0<<1)
54 #define S3C2410_LCDCON1_STN2GREY (1<<1)
55 #define S3C2410_LCDCON1_STN4GREY (2<<1)
56 #define S3C2410_LCDCON1_STN8BPP (3<<1)
57 #define S3C2410_LCDCON1_STN12BPP (4<<1)
58
59 #define S3C2410_LCDCON1_TFT1BPP (8<<1)
60 #define S3C2410_LCDCON1_TFT2BPP (9<<1)
61 #define S3C2410_LCDCON1_TFT4BPP (10<<1)
62 #define S3C2410_LCDCON1_TFT8BPP (11<<1)
63 #define S3C2410_LCDCON1_TFT16BPP (12<<1)
64 #define S3C2410_LCDCON1_TFT24BPP (13<<1)
65
66 #define S3C2410_LCDCON1_ENVID (1)
67
68 #define S3C2410_LCDCON1_MODEMASK 0x1E
69
70 #define S3C2410_LCDCON2_VBPD(x) ((x) << 24)
71 #define S3C2410_LCDCON2_LINEVAL(x) ((x) << 14)
72 #define S3C2410_LCDCON2_VFPD(x) ((x) << 6)
73 #define S3C2410_LCDCON2_VSPW(x) ((x) << 0)
74
75 #define S3C2410_LCDCON2_GET_VBPD(x) ( ((x) >> 24) & 0xFF)
76 #define S3C2410_LCDCON2_GET_VFPD(x) ( ((x) >> 6) & 0xFF)
77 #define S3C2410_LCDCON2_GET_VSPW(x) ( ((x) >> 0) & 0x3F)
78
79 #define S3C2410_LCDCON3_HBPD(x) ((x) << 19)
80 #define S3C2410_LCDCON3_WDLY(x) ((x) << 19)
81 #define S3C2410_LCDCON3_HOZVAL(x) ((x) << 8)
82 #define S3C2410_LCDCON3_HFPD(x) ((x) << 0)
83 #define S3C2410_LCDCON3_LINEBLANK(x)((x) << 0)
84
85 #define S3C2410_LCDCON3_GET_HBPD(x) ( ((x) >> 19) & 0x7F)
86 #define S3C2410_LCDCON3_GET_HFPD(x) ( ((x) >> 0) & 0xFF)
87
88 #define S3C2410_LCDCON4_MVAL(x) ((x) << 8)
89 #define S3C2410_LCDCON4_HSPW(x) ((x) << 0)
90 #define S3C2410_LCDCON4_WLH(x) ((x) << 0)
91
92 #define S3C2410_LCDCON4_GET_HSPW(x) ( ((x) >> 0) & 0xFF)
93
94 #define S3C2410_LCDCON5_BPP24BL (1<<12)
95 #define S3C2410_LCDCON5_FRM565 (1<<11)
96 #define S3C2410_LCDCON5_INVVCLK (1<<10)
97 #define S3C2410_LCDCON5_INVVLINE (1<<9)
98 #define S3C2410_LCDCON5_INVVFRAME (1<<8)
99 #define S3C2410_LCDCON5_INVVD (1<<7)
100 #define S3C2410_LCDCON5_INVVDEN (1<<6)
101 #define S3C2410_LCDCON5_INVPWREN (1<<5)
102 #define S3C2410_LCDCON5_INVLEND (1<<4)
103 #define S3C2410_LCDCON5_PWREN (1<<3)
104 #define S3C2410_LCDCON5_ENLEND (1<<2)
105 #define S3C2410_LCDCON5_BSWP (1<<1)
106 #define S3C2410_LCDCON5_HWSWP (1<<0)
107
108 #define S3C2410_LCDINT_FRSYNC (1<<1)
109
110 volatile rt_uint16_t _rt_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];
111 //volatile rt_uint16_t _rt_hw_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];
112 static struct rt_device_graphic_info _lcd_info;
113
lcd_power_enable(int invpwren,int pwren)114 static void lcd_power_enable(int invpwren, int pwren)
115 {
116 //GPG4 is setted as LCD_PWREN
117 GPGUP = GPGUP | (1<<4); // Pull-up disable
118 GPGCON = GPGCON | (3<<8); //GPG4=LCD_PWREN
119
120 //Enable LCD POWER ENABLE Function
121 LCDCON5 = LCDCON5&(~(1<<3))|(pwren<<3); // PWREN
122 LCDCON5 = LCDCON5&(~(1<<5))|(invpwren<<5); // INVPWREN
123 }
124
lcd_envid_on_off(int onoff)125 static void lcd_envid_on_off(int onoff)
126 {
127 if(onoff==1)
128 /*ENVID=ON*/
129 LCDCON1|=1;
130 else
131 /*ENVID Off*/
132 LCDCON1 =LCDCON1 & 0x3fffe;
133 }
134
135 //********************** BOARD LCD backlight ****************************
LcdBkLtSet(rt_uint32_t HiRatio)136 static void LcdBkLtSet(rt_uint32_t HiRatio)
137 {
138 #define FREQ_PWM1 1000
139 if(!HiRatio)
140 {
141 GPBCON = GPBCON & (~(3<<2)) | (1<<2) ;
142 GPBDAT &= ~(1<<1);
143 return;
144 }
145 GPBCON = GPBCON & (~(3<<2)) | (2<<2) ;
146
147 if( HiRatio > 100 ) HiRatio = 100 ;
148
149 TCON = TCON & (~(0xf<<8)) ; // clear manual update bit, stop Timer1
150
151 TCFG0 &= 0xffffff00; // set Timer 0&1 prescaler 0
152 TCFG0 |= 15; //prescaler = 15+1
153
154 TCFG1 &= 0xffffff0f; // set Timer 1 MUX 1/16
155 TCFG1 |= 0x00000030; // set Timer 1 MUX 1/16
156
157 TCNTB1 = ( 100000000>>8 )/FREQ_PWM1; //if set inverter off, when TCNT2<=TCMP2, TOUT is high, TCNT2>TCMP2, TOUT is low
158 TCMPB1 = ( TCNTB1*(100-HiRatio))/100 ; //if set inverter on, when TCNT2<=TCMP2, TOUT is low, TCNT2>TCMP2, TOUT is high
159
160 TCON = TCON & (~(0xf<<8)) | (0x0e<<8) ;
161 TCON = TCON & (~(0xf<<8)) | (0x0d<<8) ;
162 }
163
164 /* RT-Thread Device Interface */
rt_lcd_init(rt_device_t dev)165 static rt_err_t rt_lcd_init (rt_device_t dev)
166 {
167 GPB1_TO_OUT();
168 GPB1_TO_1();
169
170 GPCUP = 0x00000000;
171 GPCCON = 0xaaaa02a9;
172
173 GPDUP = 0x00000000;
174 GPDCON = 0xaaaaaaaa;
175
176 #define M5D(n) ((n)&0x1fffff)
177 #define LCD_ADDR ((rt_uint32_t)_rt_framebuffer)
178 LCDCON1 = (LCD_PIXCLOCK << 8) | (3 << 5) | (12 << 1);
179 LCDCON2 = (LCD_UPPER_MARGIN << 24) | ((LCD_HEIGHT - 1) << 14) | (LCD_LOWER_MARGIN << 6) | (LCD_VSYNC_LEN << 0);
180 LCDCON3 = (LCD_RIGHT_MARGIN << 19) | ((LCD_WIDTH - 1) << 8) | (LCD_LEFT_MARGIN << 0);
181 LCDCON4 = (13 << 8) | (LCD_HSYNC_LEN << 0);
182
183 #if !defined(LCD_CON5)
184 #define LCD_CON5 ((1<<11) | (1 << 9) | (1 << 8) | (1 << 3) | (1 << 0))
185 #endif
186 LCDCON5 = LCD_CON5;
187
188 LCDSADDR1 = ((LCD_ADDR >> 22) << 21) | ((M5D(LCD_ADDR >> 1)) << 0);
189 LCDSADDR2 = M5D((LCD_ADDR + LCD_WIDTH * LCD_HEIGHT * 2) >> 1);
190 LCDSADDR3 = LCD_WIDTH;
191
192 LCDINTMSK |= (3);
193 LPCSEL &= (~7) ;
194 TPAL=0;
195
196 LcdBkLtSet(70) ;
197 lcd_power_enable(0, 1);
198 lcd_envid_on_off(1);
199
200 return RT_EOK;
201 }
202
rt_lcd_control(rt_device_t dev,int cmd,void * args)203 static rt_err_t rt_lcd_control (rt_device_t dev, int cmd, void *args)
204 {
205 switch (cmd)
206 {
207 case RTGRAPHIC_CTRL_RECT_UPDATE:
208 break;
209 case RTGRAPHIC_CTRL_POWERON:
210 break;
211 case RTGRAPHIC_CTRL_POWEROFF:
212 break;
213 case RTGRAPHIC_CTRL_GET_INFO:
214 rt_memcpy(args, &_lcd_info, sizeof(_lcd_info));
215 break;
216 case RTGRAPHIC_CTRL_SET_MODE:
217 break;
218 }
219
220 return RT_EOK;
221 }
222
rt_hw_lcd_init(void)223 int rt_hw_lcd_init(void)
224 {
225 rt_device_t lcd = rt_malloc(sizeof(struct rt_device));
226 if (lcd == RT_NULL)
227 return -RT_ERROR; /* no memory yet */
228
229 _lcd_info.bits_per_pixel = 16;
230 _lcd_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565P;
231 _lcd_info.framebuffer = (void*)_rt_framebuffer;
232 _lcd_info.width = LCD_WIDTH;
233 _lcd_info.height = LCD_HEIGHT;
234
235 /* init device structure */
236 lcd->type = RT_Device_Class_Unknown;
237 lcd->init = rt_lcd_init;
238 lcd->open = RT_NULL;
239 lcd->close = RT_NULL;
240 lcd->control = rt_lcd_control;
241 lcd->user_data = (void*)&_lcd_info;
242
243 /* register lcd device to RT-Thread */
244 rt_device_register(lcd, "lcd", RT_DEVICE_FLAG_RDWR);
245 }
246
247 INIT_BOARD_EXPORT(rt_hw_lcd_init);
248