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