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_byte.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 | */ |
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36 | |
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37 | #include "u8x8.h" |
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38 | |
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39 | uint8_t u8x8_byte_SetDC(u8x8_t *u8x8, uint8_t dc) |
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40 | { |
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41 | return u8x8->byte_cb(u8x8, U8X8_MSG_BYTE_SET_DC, dc, NULL); |
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42 | } |
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43 | |
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44 | uint8_t u8x8_byte_SendBytes(u8x8_t *u8x8, uint8_t cnt, uint8_t *data) |
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45 | { |
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46 | return u8x8->byte_cb(u8x8, U8X8_MSG_BYTE_SEND, cnt, (void *)data); |
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47 | } |
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48 | |
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49 | uint8_t u8x8_byte_SendByte(u8x8_t *u8x8, uint8_t byte) |
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50 | { |
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51 | return u8x8_byte_SendBytes(u8x8, 1, &byte); |
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52 | } |
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53 | |
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54 | uint8_t u8x8_byte_StartTransfer(u8x8_t *u8x8) |
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55 | { |
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56 | return u8x8->byte_cb(u8x8, U8X8_MSG_BYTE_START_TRANSFER, 0, NULL); |
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57 | } |
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58 | |
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59 | uint8_t u8x8_byte_EndTransfer(u8x8_t *u8x8) |
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60 | { |
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61 | return u8x8->byte_cb(u8x8, U8X8_MSG_BYTE_END_TRANSFER, 0, NULL); |
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62 | } |
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63 | |
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64 | /*=========================================*/ |
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65 | |
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66 | uint8_t u8x8_byte_empty(U8X8_UNUSED u8x8_t *u8x8, uint8_t msg, U8X8_UNUSED uint8_t arg_int, U8X8_UNUSED void *arg_ptr) |
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67 | { |
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68 | switch(msg) |
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69 | { |
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70 | case U8X8_MSG_BYTE_SEND: |
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71 | case U8X8_MSG_BYTE_INIT: |
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72 | case U8X8_MSG_BYTE_SET_DC: |
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73 | case U8X8_MSG_BYTE_START_TRANSFER: |
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74 | case U8X8_MSG_BYTE_END_TRANSFER: |
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75 | break; /* do nothing */ |
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76 | } |
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77 | return 1; /* always succeed */ |
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78 | } |
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79 | |
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80 | |
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81 | /*=========================================*/ |
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82 | |
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83 | |
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84 | /* |
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85 | Uses: |
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86 | u8x8->display_info->sda_setup_time_ns |
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87 | u8x8->display_info->sck_pulse_width_ns |
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88 | u8x8->display_info->spi_mode |
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89 | u8x8->display_info->chip_disable_level |
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90 | u8x8->display_info->chip_enable_level |
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91 | u8x8->display_info->post_chip_enable_wait_ns |
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92 | u8x8->display_info->pre_chip_disable_wait_ns |
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93 | Calls to GPIO and DELAY: |
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94 | U8X8_MSG_DELAY_NANO |
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95 | U8X8_MSG_GPIO_DC |
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96 | U8X8_MSG_GPIO_CS |
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97 | U8X8_MSG_GPIO_CLOCK |
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98 | U8X8_MSG_GPIO_DATA |
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99 | Handles: |
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100 | U8X8_MSG_BYTE_INIT |
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101 | U8X8_MSG_BYTE_SEND |
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102 | U8X8_MSG_BYTE_SET_DC |
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103 | U8X8_MSG_BYTE_START_TRANSFER |
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104 | U8X8_MSG_BYTE_END_TRANSFER |
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105 | */ |
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106 | |
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107 | uint8_t u8x8_byte_4wire_sw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
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108 | { |
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109 | uint8_t i, b; |
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110 | uint8_t *data; |
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111 | uint8_t takeover_edge = u8x8_GetSPIClockPhase(u8x8); |
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112 | uint8_t not_takeover_edge = 1 - takeover_edge; |
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113 | |
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114 | switch(msg) |
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115 | { |
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116 | case U8X8_MSG_BYTE_SEND: |
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117 | data = (uint8_t *)arg_ptr; |
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118 | while( arg_int > 0 ) |
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119 | { |
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120 | b = *data; |
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121 | data++; |
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122 | arg_int--; |
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123 | for( i = 0; i < 8; i++ ) |
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124 | { |
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125 | if ( b & 128 ) |
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126 | u8x8_gpio_SetSPIData(u8x8, 1); |
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127 | else |
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128 | u8x8_gpio_SetSPIData(u8x8, 0); |
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129 | b <<= 1; |
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130 | |
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131 | u8x8_gpio_SetSPIClock(u8x8, not_takeover_edge); |
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132 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->sda_setup_time_ns); |
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133 | u8x8_gpio_SetSPIClock(u8x8, takeover_edge); |
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134 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->sck_pulse_width_ns); |
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135 | } |
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136 | } |
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137 | break; |
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138 | |
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139 | case U8X8_MSG_BYTE_INIT: |
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140 | /* disable chipselect */ |
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141 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level); |
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142 | /* no wait required here */ |
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143 | |
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144 | /* for SPI: setup correct level of the clock signal */ |
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145 | u8x8_gpio_SetSPIClock(u8x8, u8x8_GetSPIClockPhase(u8x8)); |
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146 | break; |
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147 | case U8X8_MSG_BYTE_SET_DC: |
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148 | u8x8_gpio_SetDC(u8x8, arg_int); |
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149 | break; |
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150 | case U8X8_MSG_BYTE_START_TRANSFER: |
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151 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_enable_level); |
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152 | u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->post_chip_enable_wait_ns, NULL); |
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153 | break; |
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154 | case U8X8_MSG_BYTE_END_TRANSFER: |
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155 | u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->pre_chip_disable_wait_ns, NULL); |
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156 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level); |
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157 | break; |
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158 | default: |
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159 | return 0; |
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160 | } |
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161 | return 1; |
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162 | } |
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163 | |
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164 | /*=========================================*/ |
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165 | |
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166 | uint8_t u8x8_byte_8bit_6800mode(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
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167 | { |
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168 | uint8_t i, b; |
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169 | uint8_t *data; |
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170 | |
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171 | switch(msg) |
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172 | { |
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173 | case U8X8_MSG_BYTE_SEND: |
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174 | data = (uint8_t *)arg_ptr; |
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175 | while( arg_int > 0 ) |
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176 | { |
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177 | b = *data; |
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178 | data++; |
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179 | arg_int--; |
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180 | for( i = U8X8_MSG_GPIO_D0; i <= U8X8_MSG_GPIO_D7; i++ ) |
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181 | { |
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182 | u8x8_gpio_call(u8x8, i, b&1); |
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183 | b >>= 1; |
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184 | } |
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185 | |
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186 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->data_setup_time_ns); |
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187 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 1); |
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188 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->write_pulse_width_ns); |
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189 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 0); |
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190 | } |
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191 | break; |
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192 | |
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193 | case U8X8_MSG_BYTE_INIT: |
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194 | /* disable chipselect */ |
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195 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level); |
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196 | /* ensure that the enable signal is high */ |
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197 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 0); |
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198 | break; |
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199 | case U8X8_MSG_BYTE_SET_DC: |
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200 | u8x8_gpio_SetDC(u8x8, arg_int); |
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201 | break; |
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202 | case U8X8_MSG_BYTE_START_TRANSFER: |
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203 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_enable_level); |
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204 | u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->post_chip_enable_wait_ns, NULL); |
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205 | break; |
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206 | case U8X8_MSG_BYTE_END_TRANSFER: |
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207 | u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->pre_chip_disable_wait_ns, NULL); |
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208 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level); |
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209 | break; |
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210 | default: |
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211 | return 0; |
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212 | } |
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213 | return 1; |
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214 | } |
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215 | |
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216 | uint8_t u8x8_byte_8bit_8080mode(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
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217 | { |
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218 | uint8_t i, b; |
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219 | uint8_t *data; |
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220 | |
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221 | switch(msg) |
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222 | { |
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223 | case U8X8_MSG_BYTE_SEND: |
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224 | data = (uint8_t *)arg_ptr; |
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225 | while( arg_int > 0 ) |
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226 | { |
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227 | b = *data; |
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228 | data++; |
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229 | arg_int--; |
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230 | for( i = U8X8_MSG_GPIO_D0; i <= U8X8_MSG_GPIO_D7; i++ ) |
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231 | { |
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232 | u8x8_gpio_call(u8x8, i, b&1); |
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233 | b >>= 1; |
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234 | } |
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235 | |
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236 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->data_setup_time_ns); |
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237 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 0); |
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238 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->write_pulse_width_ns); |
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239 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 1); |
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240 | } |
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241 | break; |
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242 | |
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243 | case U8X8_MSG_BYTE_INIT: |
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244 | /* disable chipselect */ |
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245 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level); |
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246 | /* ensure that the enable signal is high */ |
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247 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 1); |
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248 | break; |
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249 | case U8X8_MSG_BYTE_SET_DC: |
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250 | u8x8_gpio_SetDC(u8x8, arg_int); |
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251 | break; |
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Initial import of the CO2 meter application.
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252 | case U8X8_MSG_BYTE_START_TRANSFER: |
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253 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_enable_level); |
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254 | u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->post_chip_enable_wait_ns, NULL); |
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Initial import of the CO2 meter application.
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255 | break; |
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Initial import of the CO2 meter application.
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256 | case U8X8_MSG_BYTE_END_TRANSFER: |
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257 | u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->pre_chip_disable_wait_ns, NULL); |
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Initial import of the CO2 meter application.
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258 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level); |
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259 | break; |
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260 | default: |
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261 | return 0; |
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262 | } |
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Initial import of the CO2 meter application.
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263 | return 1; |
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Initial import of the CO2 meter application.
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264 | } |
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Initial import of the CO2 meter application.
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265 | |
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266 | /*=========================================*/ |
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267 | |
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268 | uint8_t u8x8_byte_3wire_sw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
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269 | { |
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270 | uint8_t i; |
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271 | uint8_t *data; |
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272 | uint8_t takeover_edge = u8x8_GetSPIClockPhase(u8x8); |
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273 | uint8_t not_takeover_edge = 1 - takeover_edge; |
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274 | uint16_t b; |
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275 | static uint8_t last_dc; |
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276 | |
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277 | switch(msg) |
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278 | { |
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279 | case U8X8_MSG_BYTE_SEND: |
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280 | data = (uint8_t *)arg_ptr; |
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281 | while( arg_int > 0 ) |
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Initial import of the CO2 meter application.
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282 | { |
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Initial import of the CO2 meter application.
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283 | b = *data; |
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284 | if ( last_dc != 0 ) |
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Initial import of the CO2 meter application.
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285 | b |= 256; |
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Initial import of the CO2 meter application.
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286 | data++; |
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Initial import of the CO2 meter application.
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287 | arg_int--; |
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Initial import of the CO2 meter application.
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288 | for( i = 0; i < 9; i++ ) |
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Initial import of the CO2 meter application.
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289 | { |
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290 | if ( b & 256 ) |
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291 | u8x8_gpio_SetSPIData(u8x8, 1); |
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292 | else |
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parents:
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293 | u8x8_gpio_SetSPIData(u8x8, 0); |
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Initial import of the CO2 meter application.
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294 | b <<= 1; |
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295 | |
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Initial import of the CO2 meter application.
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296 | u8x8_gpio_SetSPIClock(u8x8, not_takeover_edge); |
88d965579617
Initial import of the CO2 meter application.
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297 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->sda_setup_time_ns); |
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Initial import of the CO2 meter application.
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298 | u8x8_gpio_SetSPIClock(u8x8, takeover_edge); |
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Initial import of the CO2 meter application.
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299 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->sck_pulse_width_ns); |
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Initial import of the CO2 meter application.
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300 | } |
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Initial import of the CO2 meter application.
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301 | } |
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Initial import of the CO2 meter application.
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302 | break; |
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Initial import of the CO2 meter application.
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parents:
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303 | |
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Initial import of the CO2 meter application.
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304 | case U8X8_MSG_BYTE_INIT: |
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305 | /* disable chipselect */ |
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306 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level); |
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Initial import of the CO2 meter application.
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307 | /* no wait required here */ |
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308 | |
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Initial import of the CO2 meter application.
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309 | /* for SPI: setup correct level of the clock signal */ |
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310 | u8x8_gpio_SetSPIClock(u8x8, u8x8_GetSPIClockPhase(u8x8)); |
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Initial import of the CO2 meter application.
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parents:
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311 | break; |
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Initial import of the CO2 meter application.
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parents:
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312 | case U8X8_MSG_BYTE_SET_DC: |
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313 | last_dc = arg_int; |
88d965579617
Initial import of the CO2 meter application.
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parents:
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314 | break; |
88d965579617
Initial import of the CO2 meter application.
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parents:
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|
315 | case U8X8_MSG_BYTE_START_TRANSFER: |
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Initial import of the CO2 meter application.
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parents:
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316 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_enable_level); |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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317 | u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->post_chip_enable_wait_ns, NULL); |
88d965579617
Initial import of the CO2 meter application.
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parents:
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318 | break; |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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|
319 | case U8X8_MSG_BYTE_END_TRANSFER: |
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Initial import of the CO2 meter application.
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parents:
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320 | u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->pre_chip_disable_wait_ns, NULL); |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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|
321 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level); |
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Initial import of the CO2 meter application.
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parents:
diff
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|
322 | break; |
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Initial import of the CO2 meter application.
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parents:
diff
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|
323 | default: |
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Initial import of the CO2 meter application.
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324 | return 0; |
88d965579617
Initial import of the CO2 meter application.
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parents:
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|
325 | } |
88d965579617
Initial import of the CO2 meter application.
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parents:
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326 | return 1; |
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Initial import of the CO2 meter application.
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parents:
diff
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|
327 | } |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
changeset
|
328 | |
88d965579617
Initial import of the CO2 meter application.
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parents:
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|
329 | /*=========================================*/ |
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parents:
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330 | |
88d965579617
Initial import of the CO2 meter application.
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parents:
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|
331 | void u8x8_byte_set_ks0108_cs(u8x8_t *u8x8, uint8_t arg) |
88d965579617
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parents:
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332 | { |
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parents:
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|
333 | u8x8_gpio_SetCS(u8x8, arg&1); |
88d965579617
Initial import of the CO2 meter application.
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parents:
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334 | arg = arg >> 1; |
88d965579617
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parents:
diff
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|
335 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_CS1, arg&1); |
88d965579617
Initial import of the CO2 meter application.
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parents:
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336 | arg = arg >> 1; |
88d965579617
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parents:
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|
337 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_CS2, arg&1); |
88d965579617
Initial import of the CO2 meter application.
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parents:
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338 | } |
88d965579617
Initial import of the CO2 meter application.
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parents:
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339 | |
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340 | /* 6800 mode */ |
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341 | uint8_t u8x8_byte_ks0108(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
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Initial import of the CO2 meter application.
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parents:
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342 | { |
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Initial import of the CO2 meter application.
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parents:
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343 | uint8_t i, b; |
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parents:
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|
344 | uint8_t *data; |
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Initial import of the CO2 meter application.
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345 | |
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Initial import of the CO2 meter application.
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346 | switch(msg) |
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Initial import of the CO2 meter application.
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parents:
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347 | { |
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Initial import of the CO2 meter application.
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parents:
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|
348 | case U8X8_MSG_BYTE_SEND: |
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Initial import of the CO2 meter application.
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parents:
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349 | data = (uint8_t *)arg_ptr; |
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Initial import of the CO2 meter application.
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parents:
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|
350 | while( arg_int > 0 ) |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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|
351 | { |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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|
352 | b = *data; |
88d965579617
Initial import of the CO2 meter application.
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parents:
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|
353 | data++; |
88d965579617
Initial import of the CO2 meter application.
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parents:
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354 | arg_int--; |
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parents:
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|
355 | for( i = U8X8_MSG_GPIO_D0; i <= U8X8_MSG_GPIO_D7; i++ ) |
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Initial import of the CO2 meter application.
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parents:
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|
356 | { |
88d965579617
Initial import of the CO2 meter application.
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parents:
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|
357 | u8x8_gpio_call(u8x8, i, b&1); |
88d965579617
Initial import of the CO2 meter application.
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parents:
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|
358 | b >>= 1; |
88d965579617
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parents:
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|
359 | } |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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|
360 | |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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|
361 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->data_setup_time_ns); |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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362 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 1); |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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|
363 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->write_pulse_width_ns); |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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|
364 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 0); |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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|
365 | } |
88d965579617
Initial import of the CO2 meter application.
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parents:
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366 | break; |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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367 | |
88d965579617
Initial import of the CO2 meter application.
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parents:
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|
368 | case U8X8_MSG_BYTE_INIT: |
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parents:
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369 | /* disable chipselect */ |
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parents:
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|
370 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level); |
88d965579617
Initial import of the CO2 meter application.
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parents:
diff
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|
371 | /* ensure that the enable signal is low */ |
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Initial import of the CO2 meter application.
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parents:
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|
372 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 0); |
88d965579617
Initial import of the CO2 meter application.
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parents:
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373 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
374 | case U8X8_MSG_BYTE_SET_DC: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
375 | u8x8_gpio_SetDC(u8x8, arg_int); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
376 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
377 | case U8X8_MSG_BYTE_START_TRANSFER: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
378 | /* expects 3 bits in arg_int for the chip select lines */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
379 | u8x8_byte_set_ks0108_cs(u8x8, arg_int); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
380 | u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->post_chip_enable_wait_ns, NULL); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
381 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
382 | case U8X8_MSG_BYTE_END_TRANSFER: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
383 | u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->pre_chip_disable_wait_ns, NULL); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
384 | u8x8_byte_set_ks0108_cs(u8x8, arg_int); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
385 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
386 | default: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
387 | return 0; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
388 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
389 | return 1; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
390 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
391 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
392 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
393 | /* sed1520 or sbn1661 |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
394 | U8X8_MSG_GPIO_E --> E1 |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
395 | U8X8_MSG_GPIO_CS --> E2 |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
396 | */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
397 | uint8_t u8x8_byte_sed1520(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
398 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
399 | uint8_t i, b; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
400 | uint8_t *data; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
401 | static uint8_t enable_pin; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
402 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
403 | switch(msg) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
404 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
405 | case U8X8_MSG_BYTE_SEND: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
406 | data = (uint8_t *)arg_ptr; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
407 | while( arg_int > 0 ) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
408 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
409 | b = *data; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
410 | data++; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
411 | arg_int--; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
412 | for( i = U8X8_MSG_GPIO_D0; i <= U8X8_MSG_GPIO_D7; i++ ) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
413 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
414 | u8x8_gpio_call(u8x8, i, b&1); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
415 | b >>= 1; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
416 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
417 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
418 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->data_setup_time_ns); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
419 | u8x8_gpio_call(u8x8, enable_pin, 1); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
420 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 200); /* KS0108 requires 450 ns, use 200 here */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
421 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->write_pulse_width_ns); /* expect 250 here */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
422 | u8x8_gpio_call(u8x8, enable_pin, 0); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
423 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
424 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
425 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
426 | case U8X8_MSG_BYTE_INIT: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
427 | /* disable chipselect */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
428 | u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
429 | /* ensure that the enable signals are low */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
430 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_E, 0); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
431 | u8x8_gpio_call(u8x8, U8X8_MSG_GPIO_CS, 0); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
432 | enable_pin = U8X8_MSG_GPIO_E; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
433 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
434 | case U8X8_MSG_BYTE_SET_DC: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
435 | u8x8_gpio_SetDC(u8x8, arg_int); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
436 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
437 | case U8X8_MSG_BYTE_START_TRANSFER: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
438 | /* cs lines are not supported for the SED1520/SBN1661 */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
439 | /* instead, this will select the E1 or E2 line */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
440 | enable_pin = U8X8_MSG_GPIO_E; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
441 | if ( arg_int != 0 ) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
442 | enable_pin = U8X8_MSG_GPIO_CS; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
443 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
444 | case U8X8_MSG_BYTE_END_TRANSFER: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
445 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
446 | default: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
447 | return 0; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
448 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
449 | return 1; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
450 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
451 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
452 | /*=========================================*/ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
453 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
454 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
455 | /* |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
456 | software i2c, |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
457 | ignores ACK response (which is anyway not provided by some displays) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
458 | also does not allow reading from the device |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
459 | */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
460 | static void i2c_delay(u8x8_t *u8x8) U8X8_NOINLINE; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
461 | static void i2c_delay(u8x8_t *u8x8) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
462 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
463 | //u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_10MICRO, u8x8->display_info->i2c_bus_clock_100kHz); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
464 | u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_I2C, u8x8->display_info->i2c_bus_clock_100kHz); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
465 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
466 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
467 | static void i2c_init(u8x8_t *u8x8) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
468 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
469 | u8x8_gpio_SetI2CClock(u8x8, 1); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
470 | u8x8_gpio_SetI2CData(u8x8, 1); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
471 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
472 | i2c_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
473 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
474 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
475 | /* actually, the scl line is not observed, so this procedure does not return a value */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
476 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
477 | static void i2c_read_scl_and_delay(u8x8_t *u8x8) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
478 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
479 | /* set as input (line will be high) */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
480 | u8x8_gpio_SetI2CClock(u8x8, 1); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
481 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
482 | i2c_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
483 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
484 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
485 | static void i2c_clear_scl(u8x8_t *u8x8) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
486 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
487 | u8x8_gpio_SetI2CClock(u8x8, 0); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
488 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
489 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
490 | static void i2c_read_sda(u8x8_t *u8x8) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
491 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
492 | /* set as input (line will be high) */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
493 | u8x8_gpio_SetI2CData(u8x8, 1); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
494 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
495 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
496 | static void i2c_clear_sda(u8x8_t *u8x8) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
497 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
498 | /* set open collector and drive low */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
499 | u8x8_gpio_SetI2CData(u8x8, 0); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
500 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
501 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
502 | static void i2c_start(u8x8_t *u8x8) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
503 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
504 | if ( u8x8->i2c_started != 0 ) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
505 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
506 | /* if already started: do restart */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
507 | i2c_read_sda(u8x8); /* SDA = 1 */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
508 | i2c_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
509 | i2c_read_scl_and_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
510 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
511 | i2c_read_sda(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
512 | /* send the start condition, both lines go from 1 to 0 */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
513 | i2c_clear_sda(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
514 | i2c_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
515 | i2c_clear_scl(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
516 | u8x8->i2c_started = 1; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
517 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
518 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
519 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
520 | static void i2c_stop(u8x8_t *u8x8) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
521 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
522 | /* set SDA to 0 */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
523 | i2c_clear_sda(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
524 | i2c_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
525 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
526 | /* now release all lines */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
527 | i2c_read_scl_and_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
528 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
529 | /* set SDA to 1 */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
530 | i2c_read_sda(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
531 | i2c_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
532 | u8x8->i2c_started = 0; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
533 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
534 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
535 | static void i2c_write_bit(u8x8_t *u8x8, uint8_t val) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
536 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
537 | if (val) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
538 | i2c_read_sda(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
539 | else |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
540 | i2c_clear_sda(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
541 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
542 | i2c_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
543 | i2c_read_scl_and_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
544 | i2c_clear_scl(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
545 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
546 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
547 | static void i2c_read_bit(u8x8_t *u8x8) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
548 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
549 | //uint8_t val; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
550 | /* do not drive SDA */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
551 | i2c_read_sda(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
552 | i2c_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
553 | i2c_read_scl_and_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
554 | i2c_read_sda(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
555 | i2c_delay(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
556 | i2c_clear_scl(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
557 | //return val; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
558 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
559 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
560 | static void i2c_write_byte(u8x8_t *u8x8, uint8_t b) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
561 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
562 | i2c_write_bit(u8x8, b & 128); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
563 | i2c_write_bit(u8x8, b & 64); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
564 | i2c_write_bit(u8x8, b & 32); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
565 | i2c_write_bit(u8x8, b & 16); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
566 | i2c_write_bit(u8x8, b & 8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
567 | i2c_write_bit(u8x8, b & 4); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
568 | i2c_write_bit(u8x8, b & 2); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
569 | i2c_write_bit(u8x8, b & 1); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
570 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
571 | /* read ack from client */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
572 | /* 0: ack was given by client */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
573 | /* 1: nothing happend during ack cycle */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
574 | i2c_read_bit(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
575 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
576 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
577 | uint8_t u8x8_byte_sw_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
578 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
579 | uint8_t *data; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
580 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
581 | switch(msg) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
582 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
583 | case U8X8_MSG_BYTE_SEND: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
584 | data = (uint8_t *)arg_ptr; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
585 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
586 | while( arg_int > 0 ) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
587 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
588 | i2c_write_byte(u8x8, *data); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
589 | data++; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
590 | arg_int--; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
591 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
592 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
593 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
594 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
595 | case U8X8_MSG_BYTE_INIT: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
596 | i2c_init(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
597 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
598 | case U8X8_MSG_BYTE_SET_DC: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
599 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
600 | case U8X8_MSG_BYTE_START_TRANSFER: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
601 | i2c_start(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
602 | i2c_write_byte(u8x8, u8x8_GetI2CAddress(u8x8)); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
603 | //i2c_write_byte(u8x8, 0x078); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
604 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
605 | case U8X8_MSG_BYTE_END_TRANSFER: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
606 | i2c_stop(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
607 | break; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
608 | default: |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
609 | return 0; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
610 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
611 | return 1; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
612 | } |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
613 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
614 | /*=========================================*/ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
615 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
616 | /* alternative i2c byte procedure */ |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
617 | #ifdef ALTERNATIVE_I2C_BYTE_PROCEDURE |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
618 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
619 | |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
620 | void i2c_transfer(u8x8_t *u8x8, uint8_t adr, uint8_t cnt, uint8_t *data) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
621 | { |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
622 | uint8_t i; |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
623 | i2c_start(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
624 | i2c_write_byte(u8x8, adr); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
625 | for( i = 0; i < cnt; i++ ) |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
626 | i2c_write_byte(u8x8, data[i]); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
627 | i2c_stop(u8x8); |
88d965579617
Initial import of the CO2 meter application.
Michiel Broek <mbroek@mbse.eu>
parents:
diff
changeset
|
628 | } |
88d965579617
Initial import of the CO2 meter application.
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629 | |
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630 | |
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631 | uint8_t u8x8_byte_sw_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
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632 | { |
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633 | static uint8_t buffer[32]; /* u8g2/u8x8 will never send more than 32 bytes */ |
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634 | static uint8_t buf_idx; |
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635 | uint8_t *data; |
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636 | |
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637 | switch(msg) |
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638 | { |
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639 | case U8X8_MSG_BYTE_SEND: |
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640 | data = (uint8_t *)arg_ptr; |
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641 | while( arg_int > 0 ) |
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642 | { |
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643 | buffer[buf_idx++] = *data; |
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644 | data++; |
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645 | arg_int--; |
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646 | } |
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647 | break; |
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648 | case U8X8_MSG_BYTE_INIT: |
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649 | i2c_init(u8x8); /* init i2c communication */ |
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650 | break; |
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651 | case U8X8_MSG_BYTE_SET_DC: |
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652 | /* ignored for i2c */ |
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653 | break; |
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654 | case U8X8_MSG_BYTE_START_TRANSFER: |
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655 | buf_idx = 0; |
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656 | break; |
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657 | case U8X8_MSG_BYTE_END_TRANSFER: |
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658 | i2c_transfer(u8x8, u8x8_GetI2CAddress(u8x8), buf_idx, buffer); |
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659 | break; |
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660 | default: |
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661 | return 0; |
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662 | } |
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663 | return 1; |
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664 | } |
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665 | |
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666 | #endif |