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comparison src/cs/drivers/drv_app/r2d/lcds/luna/r2d_task_i.c @ 650:7d6878435c85

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R2D: Luna LCD driver implemented
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 07 May 2020 07:32:27 +0000
parents
children 8c0bd0b6447c
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649:37396b85f3f7 650:7d6878435c85
1 #include "r2d/lcds/luna/r2d_luna_lcd.h"
2 #include "rvm/rvm_use_id_list.h"
3
4 void r2d_lcd_power_on(void)
5 {
6 }
7
8 void r2d_lcd_power_off(void)
9 {
10 }
11
12 void r2d_refresh(void)
13 {
14 UINT16 i,j;
15 UINT32 v;
16 UINT32 *p;
17 INT16 x1,x2,y1,y2,de,ds;
18
19 p=r2d_g_framebuffer->p_memory_words;
20
21 x1=(r2d_update_ul_x>>1)<<1; //0
22 x2=((r2d_update_br_x>>1)<<1)+1; //174;
23
24 ds=(x1>>1);
25 de=R2D_MWWIDTH-(x2>>1)-1; // WHY -1, is formula right ????
26
27 y1=r2d_update_ul_y; //0
28 y2=r2d_update_br_y; //219
29
30 /* set window area */
31 LCD_REG_WR(0x36, x2);
32 LCD_REG_WR(0x37, x1);
33 LCD_REG_WR(0x38, y2);
34 LCD_REG_WR(0x39, y1);
35 /* set current write address */
36 LCD_REG_WR(0x20, x1);
37 LCD_REG_WR(0x21, y1);
38 /* set up for GRAM write */
39 LCD_IR = 0x22;
40
41 p=p+y1*R2D_MWWIDTH;
42
43 for(i=y1;i<=y2;i++)
44 {
45 p+=ds;
46 for(j=(x1>>1);j<=(x2>>1);j++)
47 {
48 v=*p++;
49 v=~v;
50
51 /*white*/
52 /*v=0xffffffff*/
53 /*black*/
54 /*v=0x00000000*/
55
56 LCD_DR = v&0x0FFFF;
57 LCD_DR = v>>16;
58 }
59 p+=de;
60 }
61
62 r2d_check_and_send_event(r2d_g_framebuffer);
63 r2d_reinit_update_region();
64 }