FreeCalypso > hg > tcs211-c139

annotate chipsetsw/drivers/drv_app/r2d/lcds/c139/r2d_task_i.c @ 35:2071211e5d1a

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Mot C1xx keypad layout entered
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 04 Nov 2015 06:18:11 +0000
parents f1ffea823c18
children
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f1ffea823c18 C-Sample-emulating C139 LCD driver implemented
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1 #include "r2d/lcds/c139/colors.h"
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2
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3 void c139_uwire_xmit(UINT16 cmd)
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4 {
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5 * (volatile UINT16 *) TDR = cmd << 7;
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6 * (volatile UINT16 *) CSR |= NB_BITS_WR_9 + CS_CMD + START ; // transmit command data
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7 while (((* (volatile UINT16 *) CSR) & CSRB) != 0 ); // wait for end of WRITE
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8 * (volatile UINT16 *) CSR &= ~CS_CMD; // clears Chip Select
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9 }
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10
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11 void c139_lcd_ctrl_cmd(UINT8 cmd, UINT8 param)
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12 {
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13 c139_uwire_xmit(cmd);
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14 c139_uwire_xmit(param | 0x100);
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15 }
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16
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17 void c139_set_lcd_addr_region(UINT8 xstart, UINT8 xend,
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18 UINT8 ystart, UINT8 yend)
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19 {
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20 c139_lcd_ctrl_cmd(0x10, xstart);
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21 c139_lcd_ctrl_cmd(0x11, ystart);
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22 c139_lcd_ctrl_cmd(0x12, xend);
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23 c139_lcd_ctrl_cmd(0x13, yend);
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24 c139_lcd_ctrl_cmd(0x14, xstart);
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25 c139_lcd_ctrl_cmd(0x15, ystart);
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26 }
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27
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28 void c139_lcd_send_pix(UINT16 pixval)
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29 {
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30 c139_uwire_xmit((pixval >> 8) | 0x100);
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31 c139_uwire_xmit((pixval & 0xFF) | 0x100);
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32 }
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33
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34 void r2d_lcd_power_on(void)
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35 {
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36 }
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37
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38 void r2d_lcd_power_off(void)
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39 {
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40 }
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41
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42 static int get_pix_from_sw_fb(UINT32 *fb, UINT16 x, UINT16 y)
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43 {
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44 UINT32 *p, mask;
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45 UINT16 yword, ybit;
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46
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47 /* mirroring */
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48 x = R2D_WIDTH - x;
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49 y = R2D_HEIGHT - y;
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50 yword = y >> 5;
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51 ybit = y & 31;
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52 p = fb + x * R2D_MWHEIGHT + yword;
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53 mask = 1 << ybit;
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54 if (*p & mask)
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55 return(1);
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56 else
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57 return(0);
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58 }
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59
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60 void r2d_refresh(void)
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61 {
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62 UINT16 x, y;
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63 UINT32 *fb;
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64
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65 fb = r2d_g_framebuffer->p_memory_words;
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66
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67 /* set the LCD up to refresh the 84x48 area */
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68 c139_set_lcd_addr_region(6, 89, 8, 55);
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69 /* send the pixels */
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70 for (y = 0; y < R2D_HEIGHT; y++) {
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71 for (x = 0; x < R2D_WIDTH; x++) {
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72 if (get_pix_from_sw_fb(fb, x, y))
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73 c139_lcd_send_pix(LCD16_COLOR_BLACK);
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74 else
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75 c139_lcd_send_pix(LCD16_COLOR_WHITE);
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76 }
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77 }
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78
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79 r2d_reinit_update_region();
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80 }