Tue, 08 Oct 2019 12:00:31 +0200
Initial import of the CO2 meter application.
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Initial import of the CO2 meter application.
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1 | /* |
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2 | |
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3 | u8x8_display.c |
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4 | |
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5 | Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) |
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6 | |
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7 | Copyright (c) 2016, olikraus@gmail.com |
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8 | All rights reserved. |
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9 | |
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10 | Redistribution and use in source and binary forms, with or without modification, |
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11 | are permitted provided that the following conditions are met: |
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12 | |
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13 | * Redistributions of source code must retain the above copyright notice, this list |
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14 | of conditions and the following disclaimer. |
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15 | |
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16 | * Redistributions in binary form must reproduce the above copyright notice, this |
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17 | list of conditions and the following disclaimer in the documentation and/or other |
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18 | materials provided with the distribution. |
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19 | |
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20 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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21 | CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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22 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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23 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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24 | DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
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25 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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26 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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27 | NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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28 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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29 | CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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30 | STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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31 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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32 | ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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33 | |
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34 | |
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35 | Abstraction layer for the graphics controller. |
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36 | Main goal is the placement of a 8x8 pixel block (tile) on the display. |
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37 | |
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38 | */ |
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39 | |
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40 | |
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41 | #include "u8x8.h" |
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42 | |
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43 | |
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44 | /*==========================================*/ |
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45 | /* internal library function */ |
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46 | |
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47 | /* |
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48 | this is a helper function for the U8X8_MSG_DISPLAY_SETUP_MEMORY function. |
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49 | It can be called within the display callback function to carry out the usual standard tasks. |
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50 | |
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51 | */ |
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52 | void u8x8_d_helper_display_setup_memory(u8x8_t *u8x8, const u8x8_display_info_t *display_info) |
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53 | { |
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54 | /* 1) set display info struct */ |
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55 | u8x8->display_info = display_info; |
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56 | u8x8->x_offset = u8x8->display_info->default_x_offset; |
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57 | } |
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58 | |
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59 | /* |
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60 | this is a helper function for the U8X8_MSG_DISPLAY_INIT function. |
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61 | It can be called within the display callback function to carry out the usual standard tasks. |
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62 | |
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63 | */ |
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64 | void u8x8_d_helper_display_init(u8x8_t *u8x8) |
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65 | { |
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66 | /* 2) apply port directions to the GPIO lines and apply default values for the IO lines*/ |
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67 | u8x8_gpio_Init(u8x8); |
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68 | u8x8_cad_Init(u8x8); |
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69 | |
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70 | /* 3) do reset */ |
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71 | u8x8_gpio_SetReset(u8x8, 1); |
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72 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_MILLI, u8x8->display_info->reset_pulse_width_ms); |
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73 | u8x8_gpio_SetReset(u8x8, 0); |
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74 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_MILLI, u8x8->display_info->reset_pulse_width_ms); |
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75 | u8x8_gpio_SetReset(u8x8, 1); |
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76 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_MILLI, u8x8->display_info->post_reset_wait_ms); |
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77 | } |
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78 | |
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79 | /*==========================================*/ |
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80 | /* official functions */ |
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81 | |
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82 | uint8_t u8x8_DrawTile(u8x8_t *u8x8, uint8_t x, uint8_t y, uint8_t cnt, uint8_t *tile_ptr) |
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83 | { |
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84 | u8x8_tile_t tile; |
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85 | tile.x_pos = x; |
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86 | tile.y_pos = y; |
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87 | tile.cnt = cnt; |
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88 | tile.tile_ptr = tile_ptr; |
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89 | return u8x8->display_cb(u8x8, U8X8_MSG_DISPLAY_DRAW_TILE, 1, (void *)&tile); |
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90 | } |
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91 | |
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92 | /* should be implemented as macro */ |
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93 | void u8x8_SetupMemory(u8x8_t *u8x8) |
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94 | { |
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95 | u8x8->display_cb(u8x8, U8X8_MSG_DISPLAY_SETUP_MEMORY, 0, NULL); |
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96 | } |
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97 | |
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98 | void u8x8_InitDisplay(u8x8_t *u8x8) |
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99 | { |
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100 | u8x8->display_cb(u8x8, U8X8_MSG_DISPLAY_INIT, 0, NULL); |
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101 | } |
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102 | |
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103 | void u8x8_SetPowerSave(u8x8_t *u8x8, uint8_t is_enable) |
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104 | { |
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105 | u8x8->display_cb(u8x8, U8X8_MSG_DISPLAY_SET_POWER_SAVE, is_enable, NULL); |
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106 | } |
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107 | |
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108 | void u8x8_SetFlipMode(u8x8_t *u8x8, uint8_t mode) |
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109 | { |
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110 | u8x8->display_cb(u8x8, U8X8_MSG_DISPLAY_SET_FLIP_MODE, mode, NULL); |
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111 | } |
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112 | |
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113 | void u8x8_SetContrast(u8x8_t *u8x8, uint8_t value) |
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114 | { |
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115 | u8x8->display_cb(u8x8, U8X8_MSG_DISPLAY_SET_CONTRAST, value, NULL); |
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116 | } |
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117 | |
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118 | void u8x8_RefreshDisplay(u8x8_t *u8x8) |
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119 | { |
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120 | u8x8->display_cb(u8x8, U8X8_MSG_DISPLAY_REFRESH, 0, NULL); |
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121 | } |
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122 | |
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123 | void u8x8_ClearDisplayWithTile(u8x8_t *u8x8, const uint8_t *buf) |
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124 | { |
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125 | u8x8_tile_t tile; |
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126 | uint8_t h; |
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127 | |
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128 | tile.x_pos = 0; |
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129 | tile.cnt = 1; |
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130 | tile.tile_ptr = (uint8_t *)buf; /* tile_ptr should be const, but isn't */ |
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131 | |
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132 | h = u8x8->display_info->tile_height; |
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133 | tile.y_pos = 0; |
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134 | do |
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135 | { |
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136 | u8x8->display_cb(u8x8, U8X8_MSG_DISPLAY_DRAW_TILE, u8x8->display_info->tile_width, (void *)&tile); |
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137 | tile.y_pos++; |
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138 | } while( tile.y_pos < h ); |
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139 | } |
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140 | |
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141 | void u8x8_ClearDisplay(u8x8_t *u8x8) |
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142 | { |
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143 | uint8_t buf[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; |
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144 | u8x8_ClearDisplayWithTile(u8x8, buf); |
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145 | } |
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146 | |
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147 | void u8x8_FillDisplay(u8x8_t *u8x8) |
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148 | { |
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149 | uint8_t buf[8] = { 255, 255, 255, 255, 255, 255, 255, 255 }; |
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150 | u8x8_ClearDisplayWithTile(u8x8, buf); |
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151 | } |
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152 | |
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153 | void u8x8_ClearLine(u8x8_t *u8x8, uint8_t line) |
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154 | { |
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155 | uint8_t buf[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; |
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156 | u8x8_tile_t tile; |
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157 | if ( line < u8x8->display_info->tile_height ) |
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158 | { |
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159 | tile.x_pos = 0; |
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160 | tile.y_pos = line; |
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161 | tile.cnt = 1; |
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162 | tile.tile_ptr = (uint8_t *)buf; /* tile_ptr should be const, but isn't */ |
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163 | u8x8->display_cb(u8x8, U8X8_MSG_DISPLAY_DRAW_TILE, u8x8->display_info->tile_width, (void *)&tile); |
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164 | } |
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165 | } |