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 * 2011-07-13 Manoel Modifications on lcd_n35.c to support X35 LCD
10 * ACX502BMU - 7522J16D SONY
11 */
12
13 #include <rtthread.h>
14 #include <s3c24x0.h>
15
16
17 /* LCD driver for X3'5 */
18 #define LCD_WIDTH 240 // xres
19 #define LCD_HEIGHT 320 // yres
20 #define LCD_PIXCLOCK 7 // clock
21
22 #define LCD_RIGHT_MARGIN 23 // margin_right
23 #define LCD_LEFT_MARGIN 0 // margin_left
24 #define LCD_HSYNC_LEN 5 // hsync
25
26 #define LCD_UPPER_MARGIN 1 // margin_top
27 #define LCD_LOWER_MARGIN 3 // margin_botton
28 #define LCD_VSYNC_LEN 9 // vsync
29
30 #define LCD_XSIZE LCD_WIDTH
31 #define LCD_YSIZE LCD_HEIGHT
32 #define SCR_XSIZE LCD_WIDTH
33 #define SCR_YSIZE LCD_HEIGHT
34
35 #define RT_HW_LCD_WIDTH LCD_WIDTH
36 #define RT_HW_LCD_HEIGHT LCD_HEIGHT
37
38 #define MVAL (13)
39 #define MVAL_USED (0) //0=each frame 1=rate by MVAL
40 #define INVVDEN (1) //0=normal 1=inverted
41 #define BSWP (0) //Byte swap control
42 #define HWSWP (1) //Half word swap control
43
44 #define GPB1_TO_OUT() (GPBUP &= 0xfffd, GPBCON &= 0xfffffff3, GPBCON |= 0x00000004)
45 #define GPB1_TO_1() (GPBDAT |= 0x0002)
46 #define GPB1_TO_0() (GPBDAT &= 0xfffd)
47
48 #define S3C2410_LCDCON1_CLKVAL(x) ((x) << 8)
49 #define S3C2410_LCDCON1_MMODE (1<<7)
50 #define S3C2410_LCDCON1_DSCAN4 (0<<5)
51 #define S3C2410_LCDCON1_STN4 (1<<5)
52 #define S3C2410_LCDCON1_STN8 (2<<5)
53 #define S3C2410_LCDCON1_TFT (3<<5)
54
55 #define S3C2410_LCDCON1_STN1BPP (0<<1)
56 #define S3C2410_LCDCON1_STN2GREY (1<<1)
57 #define S3C2410_LCDCON1_STN4GREY (2<<1)
58 #define S3C2410_LCDCON1_STN8BPP (3<<1)
59 #define S3C2410_LCDCON1_STN12BPP (4<<1)
60
61 #define S3C2410_LCDCON1_TFT1BPP (8<<1)
62 #define S3C2410_LCDCON1_TFT2BPP (9<<1)
63 #define S3C2410_LCDCON1_TFT4BPP (10<<1)
64 #define S3C2410_LCDCON1_TFT8BPP (11<<1)
65 #define S3C2410_LCDCON1_TFT16BPP (12<<1)
66 #define S3C2410_LCDCON1_TFT24BPP (13<<1)
67
68 #define S3C2410_LCDCON1_ENVID (1)
69
70 #define S3C2410_LCDCON1_MODEMASK 0x1E
71
72 #define S3C2410_LCDCON2_VBPD(x) ((x) << 24)
73 #define S3C2410_LCDCON2_LINEVAL(x) ((x) << 14)
74 #define S3C2410_LCDCON2_VFPD(x) ((x) << 6)
75 #define S3C2410_LCDCON2_VSPW(x) ((x) << 0)
76
77 #define S3C2410_LCDCON2_GET_VBPD(x) ( ((x) >> 24) & 0xFF)
78 #define S3C2410_LCDCON2_GET_VFPD(x) ( ((x) >> 6) & 0xFF)
79 #define S3C2410_LCDCON2_GET_VSPW(x) ( ((x) >> 0) & 0x3F)
80
81 #define S3C2410_LCDCON3_HBPD(x) ((x) << 19)
82 #define S3C2410_LCDCON3_WDLY(x) ((x) << 19)
83 #define S3C2410_LCDCON3_HOZVAL(x) ((x) << 8)
84 #define S3C2410_LCDCON3_HFPD(x) ((x) << 0)
85 #define S3C2410_LCDCON3_LINEBLANK(x)((x) << 0)
86
87 #define S3C2410_LCDCON3_GET_HBPD(x) ( ((x) >> 19) & 0x7F)
88 #define S3C2410_LCDCON3_GET_HFPD(x) ( ((x) >> 0) & 0xFF)
89
90 #define S3C2410_LCDCON4_MVAL(x) ((x) << 8)
91 #define S3C2410_LCDCON4_HSPW(x) ((x) << 0)
92 #define S3C2410_LCDCON4_WLH(x) ((x) << 0)
93
94 #define S3C2410_LCDCON4_GET_HSPW(x) ( ((x) >> 0) & 0xFF)
95
96 #define S3C2410_LCDCON5_BPP24BL (1<<12)
97 #define S3C2410_LCDCON5_FRM565 (1<<11)
98 #define S3C2410_LCDCON5_INVVCLK (1<<10)
99 #define S3C2410_LCDCON5_INVVLINE (1<<9)
100 #define S3C2410_LCDCON5_INVVFRAME (1<<8)
101 #define S3C2410_LCDCON5_INVVD (1<<7)
102 #define S3C2410_LCDCON5_INVVDEN (1<<6)
103 #define S3C2410_LCDCON5_INVPWREN (1<<5)
104 #define S3C2410_LCDCON5_INVLEND (1<<4)
105 #define S3C2410_LCDCON5_PWREN (1<<3)
106 #define S3C2410_LCDCON5_ENLEND (1<<2)
107 #define S3C2410_LCDCON5_BSWP (1<<1)
108 #define S3C2410_LCDCON5_HWSWP (1<<0)
109
110 #define S3C2410_LCDINT_FRSYNC (1<<1)
111
112 static volatile rt_uint16_t _rt_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];
113 //static volatile rt_uint16_t _rt_hw_framebuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH];
114 static struct rt_device_graphic_info _lcd_info;
115
lcd_power_enable(int invpwren,int pwren)116 static void lcd_power_enable(int invpwren, int pwren)
117 {
118 //GPG4 is setted as LCD_PWREN
119 GPGUP = GPGUP | (1<<4); // Pull-up disable
120 GPGCON = GPGCON | (3<<8); //GPG4=LCD_PWREN
121
122 //Enable LCD POWER ENABLE Function
123 LCDCON5 = LCDCON5&(~(1<<3))|(pwren<<3); // PWREN
124 LCDCON5 = LCDCON5&(~(1<<5))|(invpwren<<5); // INVPWREN
125 }
126
lcd_envid_on_off(int onoff)127 static void lcd_envid_on_off(int onoff)
128 {
129 if(onoff==1)
130 /*ENVID=ON*/
131 LCDCON1|=1;
132 else
133 /*ENVID Off*/
134 LCDCON1 =LCDCON1 & 0x3fffe;
135 }
136
137 //********************** BOARD LCD backlight ****************************
LcdBkLtSet(rt_uint32_t HiRatio)138 static void LcdBkLtSet(rt_uint32_t HiRatio)
139 {
140 #define FREQ_PWM1 1000
141 if(!HiRatio)
142 {
143 GPBCON = GPBCON & (~(3<<2)) | (1<<2) ;
144 GPBDAT &= ~(1<<1);
145 return;
146 }
147 GPBCON = GPBCON & (~(3<<2)) | (2<<2) ;
148
149 if( HiRatio > 100 ) HiRatio = 100 ;
150
151 TCON = TCON & (~(0xf<<8)) ; // clear manual update bit, stop Timer1
152
153 TCFG0 &= 0xffffff00; // set Timer 0&1 prescaler 0
154 TCFG0 |= 15; //prescaler = 15+1
155
156 TCFG1 &= 0xffffff0f; // set Timer 1 MUX 1/16
157 TCFG1 |= 0x00000030; // set Timer 1 MUX 1/16
158
159 TCNTB1 = ( 100000000>>8 )/FREQ_PWM1; //if set inverter off, when TCNT2<=TCMP2, TOUT is high, TCNT2>TCMP2, TOUT is low
160 TCMPB1 = ( TCNTB1*(100-HiRatio))/100 ; //if set inverter on, when TCNT2<=TCMP2, TOUT is low, TCNT2>TCMP2, TOUT is high
161
162 TCON = TCON & (~(0xf<<8)) | (0x0e<<8) ;
163 TCON = TCON & (~(0xf<<8)) | (0x0d<<8) ;
164 }
165
166 /* RT-Thread Device Interface */
rt_lcd_init(rt_device_t dev)167 static rt_err_t rt_lcd_init (rt_device_t dev)
168 {
169 GPB1_TO_OUT();
170 GPB1_TO_1();
171
172 GPCUP = 0x00000000;
173 GPCCON = 0xaaaa02a9;
174
175 GPDUP = 0x00000000;
176 GPDCON = 0xaaaaaaaa;
177
178 #define M5D(n) ((n)&0x1fffff)
179 #define LCD_ADDR ((rt_uint32_t)_rt_framebuffer)
180 LCDCON1 = (LCD_PIXCLOCK << 8) | (3 << 5) | (12 << 1);
181 LCDCON2 = (LCD_UPPER_MARGIN << 24) | ((LCD_HEIGHT - 1) << 14) | (LCD_LOWER_MARGIN << 6) | (LCD_VSYNC_LEN << 0);
182 LCDCON3 = (LCD_RIGHT_MARGIN << 19) | ((LCD_WIDTH - 1) << 8) | (LCD_LEFT_MARGIN << 0);
183 LCDCON4 = (13 << 8) | (LCD_HSYNC_LEN << 0);
184
185 #define LCD_CON5 (S3C2410_LCDCON5_FRM565 | S3C2410_LCDCON5_INVVDEN | S3C2410_LCDCON5_INVVFRAME | \
186 S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVCLK | S3C2410_LCDCON5_PWREN| S3C2410_LCDCON5_HWSWP)
187
188 #if !defined(LCD_CON5)
189 #define LCD_CON5 ((1<<11) | (1 << 9) | (1 << 8) | (1 << 3) | (1 << 0))
190 #endif
191 LCDCON5 = LCD_CON5;
192
193 LCDSADDR1 = ((LCD_ADDR >> 22) << 21) | ((M5D(LCD_ADDR >> 1)) << 0);
194 LCDSADDR2 = M5D((LCD_ADDR + LCD_WIDTH * LCD_HEIGHT * 2) >> 1);
195 LCDSADDR3 = LCD_WIDTH;
196
197 LCDINTMSK |= (3);
198 LPCSEL &= (~7) ;
199 TPAL=0;
200
201 LcdBkLtSet(70) ;
202 lcd_power_enable(0, 1);
203 lcd_envid_on_off(1);
204
205 return RT_EOK;
206 }
207
rt_lcd_control(rt_device_t dev,int cmd,void * args)208 static rt_err_t rt_lcd_control (rt_device_t dev, int cmd, void *args)
209 {
210 switch (cmd)
211 {
212 case RTGRAPHIC_CTRL_RECT_UPDATE:
213 break;
214 case RTGRAPHIC_CTRL_POWERON:
215 break;
216 case RTGRAPHIC_CTRL_POWEROFF:
217 break;
218 case RTGRAPHIC_CTRL_GET_INFO:
219 rt_memcpy(args, &_lcd_info, sizeof(_lcd_info));
220 break;
221 case RTGRAPHIC_CTRL_SET_MODE:
222 break;
223 }
224
225 return RT_EOK;
226 }
227
rt_hw_lcd_init(void)228 int rt_hw_lcd_init(void)
229 {
230 rt_device_t lcd = rt_malloc(sizeof(struct rt_device));
231 if (lcd == RT_NULL)
232 return -RT_ERROR; /* no memory yet */
233
234 _lcd_info.bits_per_pixel = 16;
235 _lcd_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565P;
236 _lcd_info.framebuffer = (void*)_rt_framebuffer;
237 _lcd_info.width = LCD_WIDTH;
238 _lcd_info.height = LCD_HEIGHT;
239
240 /* init device structure */
241 lcd->type = RT_Device_Class_Unknown;
242 lcd->init = rt_lcd_init;
243 lcd->open = RT_NULL;
244 lcd->close = RT_NULL;
245 lcd->control = rt_lcd_control;
246 lcd->user_data = (void*)&_lcd_info;
247
248 /* register lcd device to RT-Thread */
249 rt_device_register(lcd, "lcd", RT_DEVICE_FLAG_RDWR);
250 }
251
252 INIT_BOARD_EXPORT(rt_hw_lcd_init);
253