FreeCalypso > hg > freecalypso-tools
annotate target-utils/lunadrv/lcdout.c @ 911:7077d02ed3b1
doc/Host-tools-overview: document fc-efr2tch
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 29 Dec 2022 21:15:36 +0000 |
parents | db9a8e88e63f |
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target-utils lunadrv program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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1 /* |
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2 * Generic LCD output operations are implemented here. All of the basic |
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3 * LCD controller registers needed for these operations are the same |
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4 * between ILI9225, ILI9225G and ST7775R controllers. |
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5 */ |
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6 |
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7 #include <sys/types.h> |
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8 #include "types.h" |
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9 #include "luna.h" |
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10 |
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11 set_lcd_addr_region(xstart, xend, ystart, yend) |
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12 { |
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13 /* set window area */ |
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14 LCD_REG_WR(0x36, xend); |
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15 LCD_REG_WR(0x37, xstart); |
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16 LCD_REG_WR(0x38, yend); |
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17 LCD_REG_WR(0x39, ystart); |
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18 /* set current write address */ |
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19 LCD_REG_WR(0x20, xstart); |
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20 LCD_REG_WR(0x21, ystart); |
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21 /* set up for GRAM write */ |
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22 LCD_IR = 0x22; |
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23 } |
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24 |
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25 void |
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26 cmd_fill(argbulk) |
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27 char *argbulk; |
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28 { |
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29 char *argv[2]; |
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30 u_long pixval; |
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31 unsigned n; |
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32 |
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33 if (parse_args(argbulk, 1, 1, argv, 0) < 0) |
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34 return; |
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35 if (parse_hexarg(argv[0], 4, &pixval) < 0) { |
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36 printf("ERROR: arg must be a valid 16-bit hex value\n"); |
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37 return; |
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38 } |
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39 set_lcd_addr_region(0, 175, 0, 219); |
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40 for (n = 0; n < 176 * 220; n++) |
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41 LCD_DR = pixval; |
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42 } |
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43 |
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44 void |
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45 cmd_rect(argbulk) |
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46 char *argbulk; |
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47 { |
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48 char *argv[6]; |
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49 u_long pixval; |
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50 int xstart, xend, ystart, yend; |
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51 int npix; |
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52 |
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53 if (parse_args(argbulk, 5, 5, argv, 0) < 0) |
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54 return; |
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55 xstart = atoi(argv[0]); |
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56 if (xstart < 0 || xstart > 175) { |
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57 range_err: printf("ERROR: coordinate arg out of range\n"); |
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58 return; |
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59 } |
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60 xend = atoi(argv[1]); |
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61 if (xend < 0 || xend > 175) |
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62 goto range_err; |
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63 ystart = atoi(argv[2]); |
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64 if (ystart < 0 || ystart > 219) |
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65 goto range_err; |
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66 yend = atoi(argv[3]); |
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67 if (yend < 0 || yend > 219) |
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68 goto range_err; |
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69 if (xend < xstart || yend < ystart) { |
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70 printf("ERROR: negative range\n"); |
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71 return; |
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72 } |
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73 if (parse_hexarg(argv[4], 4, &pixval) < 0) { |
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74 printf("ERROR: pixel arg must be a valid 16-bit hex value\n"); |
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75 return; |
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76 } |
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77 set_lcd_addr_region(xstart, xend, ystart, yend); |
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78 npix = (xend + 1 - xstart) * (yend + 1 - ystart); |
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79 while (npix--) |
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80 LCD_DR = pixval; |
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81 } |
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82 |
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83 void |
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84 cmd_mem2lcd(argbulk) |
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85 char *argbulk; |
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86 { |
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87 char *argv[2]; |
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88 u_long addr; |
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89 const u16 *rdmem; |
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90 unsigned n; |
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91 |
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92 if (parse_args(argbulk, 1, 1, argv, 0) < 0) |
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93 return; |
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94 if (parse_hexarg(argv[0], 8, &addr) < 0) { |
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95 printf("ERROR: argument must be a valid 32-bit hex address\n"); |
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96 return; |
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97 } |
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98 if (addr & 1) { |
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99 printf("ERROR: unaligned address\n"); |
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100 return; |
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101 } |
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102 rdmem = (const u16 *) addr; |
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103 set_lcd_addr_region(0, 175, 0, 219); |
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104 for (n = 0; n < 176 * 220; n++) |
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105 LCD_DR = *rdmem++; |
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106 } |