Fri, 08 Nov 2019 22:40:15 +0100
Increaded stacksize for the user process. Implemented the network update using the proven brewboard code. Reverted the lock release and display sendbuffer lines to the previous code. The networks status screen uses the wifi lock.
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Initial import of the CO2 meter application.
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1 | #include <stdio.h> |
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2 | #include <string.h> |
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3 | |
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4 | #include "sdkconfig.h" |
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5 | #include "esp_log.h" |
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6 | |
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7 | #include "freertos/FreeRTOS.h" |
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8 | #include "freertos/task.h" |
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9 | |
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10 | #include "u8g2_esp32_hal.h" |
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11 | |
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12 | static const char *TAG = "u8g2_hal"; |
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13 | static const unsigned int I2C_TIMEOUT_MS = 1000; |
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14 | |
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15 | static spi_device_handle_t handle_spi; // SPI handle. |
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16 | static i2c_cmd_handle_t handle_i2c; // I2C handle. |
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17 | static u8g2_esp32_hal_t u8g2_esp32_hal; // HAL state data. |
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18 | |
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19 | #undef ESP_ERROR_CHECK |
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20 | #define ESP_ERROR_CHECK(x) do { esp_err_t rc = (x); if (rc != ESP_OK) { ESP_LOGE("err", "esp_err_t = %d", rc); assert(0 && #x);} } while(0); |
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21 | |
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22 | /* |
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23 | * Initialze the ESP32 HAL. |
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24 | */ |
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25 | void u8g2_esp32_hal_init(u8g2_esp32_hal_t u8g2_esp32_hal_param) { |
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26 | u8g2_esp32_hal = u8g2_esp32_hal_param; |
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27 | } // u8g2_esp32_hal_init |
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28 | |
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29 | /* |
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30 | * HAL callback function as prescribed by the U8G2 library. This callback is invoked |
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31 | * to handle SPI communications. |
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32 | */ |
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33 | uint8_t u8g2_esp32_spi_byte_cb(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) { |
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34 | ESP_LOGD(TAG, "spi_byte_cb: Received a msg: %d, arg_int: %d, arg_ptr: %p", msg, arg_int, arg_ptr); |
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35 | switch(msg) { |
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36 | case U8X8_MSG_BYTE_SET_DC: |
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37 | if (u8g2_esp32_hal.dc != U8G2_ESP32_HAL_UNDEFINED) { |
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38 | gpio_set_level(u8g2_esp32_hal.dc, arg_int); |
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39 | } |
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40 | break; |
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41 | |
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42 | case U8X8_MSG_BYTE_INIT: { |
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43 | if (u8g2_esp32_hal.clk == U8G2_ESP32_HAL_UNDEFINED || |
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44 | u8g2_esp32_hal.mosi == U8G2_ESP32_HAL_UNDEFINED || |
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45 | u8g2_esp32_hal.cs == U8G2_ESP32_HAL_UNDEFINED) { |
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46 | break; |
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47 | } |
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48 | |
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49 | spi_bus_config_t bus_config; |
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50 | memset(&bus_config, 0, sizeof(spi_bus_config_t)); |
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51 | bus_config.sclk_io_num = u8g2_esp32_hal.clk; // CLK |
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52 | bus_config.mosi_io_num = u8g2_esp32_hal.mosi; // MOSI |
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53 | bus_config.miso_io_num = -1; // MISO |
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54 | bus_config.quadwp_io_num = -1; // Not used |
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55 | bus_config.quadhd_io_num = -1; // Not used |
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56 | //ESP_LOGI(TAG, "... Initializing bus."); |
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57 | ESP_ERROR_CHECK(spi_bus_initialize(HSPI_HOST, &bus_config, 1)); |
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58 | |
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59 | spi_device_interface_config_t dev_config; |
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60 | dev_config.address_bits = 0; |
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61 | dev_config.command_bits = 0; |
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62 | dev_config.dummy_bits = 0; |
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63 | dev_config.mode = 0; |
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64 | dev_config.duty_cycle_pos = 0; |
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65 | dev_config.cs_ena_posttrans = 0; |
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66 | dev_config.cs_ena_pretrans = 0; |
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67 | dev_config.clock_speed_hz = 10000; |
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68 | dev_config.spics_io_num = u8g2_esp32_hal.cs; |
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69 | dev_config.flags = 0; |
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70 | dev_config.queue_size = 200; |
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71 | dev_config.pre_cb = NULL; |
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72 | dev_config.post_cb = NULL; |
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73 | //ESP_LOGI(TAG, "... Adding device bus."); |
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74 | ESP_ERROR_CHECK(spi_bus_add_device(HSPI_HOST, &dev_config, &handle_spi)); |
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75 | |
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76 | break; |
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77 | } |
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78 | |
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79 | case U8X8_MSG_BYTE_SEND: { |
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80 | spi_transaction_t trans_desc; |
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81 | trans_desc.addr = 0; |
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82 | trans_desc.cmd = 0; |
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83 | trans_desc.flags = 0; |
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84 | trans_desc.length = 8 * arg_int; // Number of bits NOT number of bytes. |
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85 | trans_desc.rxlength = 0; |
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86 | trans_desc.tx_buffer = arg_ptr; |
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87 | trans_desc.rx_buffer = NULL; |
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88 | |
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89 | //ESP_LOGI(TAG, "... Transmitting %d bytes.", arg_int); |
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90 | ESP_ERROR_CHECK(spi_device_transmit(handle_spi, &trans_desc)); |
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91 | break; |
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92 | } |
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93 | } |
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94 | return 0; |
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95 | } // u8g2_esp32_spi_byte_cb |
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96 | |
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97 | /* |
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98 | * HAL callback function as prescribed by the U8G2 library. This callback is invoked |
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99 | * to handle I2C communications. |
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100 | */ |
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101 | uint8_t u8g2_esp32_i2c_byte_cb(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) { |
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102 | ESP_LOGD(TAG, "i2c_cb: Received a msg: %d, arg_int: %d, arg_ptr: %p", msg, arg_int, arg_ptr); |
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103 | |
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104 | switch(msg) { |
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105 | case U8X8_MSG_BYTE_SET_DC: { |
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106 | if (u8g2_esp32_hal.dc != U8G2_ESP32_HAL_UNDEFINED) { |
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107 | gpio_set_level(u8g2_esp32_hal.dc, arg_int); |
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108 | } |
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109 | break; |
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110 | } |
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111 | |
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112 | case U8X8_MSG_BYTE_INIT: { |
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113 | if (u8g2_esp32_hal.sda == U8G2_ESP32_HAL_UNDEFINED || |
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114 | u8g2_esp32_hal.scl == U8G2_ESP32_HAL_UNDEFINED) { |
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115 | break; |
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116 | } |
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117 | |
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118 | i2c_config_t conf; |
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119 | conf.mode = I2C_MODE_MASTER; |
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120 | ESP_LOGI(TAG, "sda_io_num %d", u8g2_esp32_hal.sda); |
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121 | conf.sda_io_num = u8g2_esp32_hal.sda; |
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122 | conf.sda_pullup_en = GPIO_PULLUP_ENABLE; |
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123 | ESP_LOGI(TAG, "scl_io_num %d", u8g2_esp32_hal.scl); |
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124 | conf.scl_io_num = u8g2_esp32_hal.scl; |
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125 | conf.scl_pullup_en = GPIO_PULLUP_ENABLE; |
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126 | ESP_LOGI(TAG, "clk_speed %d", I2C_MASTER_FREQ_HZ); |
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127 | conf.master.clk_speed = I2C_MASTER_FREQ_HZ; |
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128 | ESP_LOGI(TAG, "i2c_param_config %d", conf.mode); |
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129 | ESP_ERROR_CHECK(i2c_param_config(I2C_MASTER_NUM, &conf)); |
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130 | ESP_LOGI(TAG, "i2c_driver_install %d", I2C_MASTER_NUM); |
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131 | ESP_ERROR_CHECK(i2c_driver_install(I2C_MASTER_NUM, conf.mode, I2C_MASTER_RX_BUF_DISABLE, I2C_MASTER_TX_BUF_DISABLE, 0)); |
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132 | break; |
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133 | } |
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134 | |
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135 | case U8X8_MSG_BYTE_SEND: { |
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136 | uint8_t* data_ptr = (uint8_t*)arg_ptr; |
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137 | ESP_LOG_BUFFER_HEXDUMP(TAG, data_ptr, arg_int, ESP_LOG_VERBOSE); |
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138 | |
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139 | while( arg_int > 0 ) { |
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140 | ESP_ERROR_CHECK(i2c_master_write_byte(handle_i2c, *data_ptr, ACK_CHECK_EN)); |
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141 | data_ptr++; |
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142 | arg_int--; |
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143 | } |
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144 | break; |
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145 | } |
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146 | |
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147 | case U8X8_MSG_BYTE_START_TRANSFER: { |
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148 | uint8_t i2c_address = u8x8_GetI2CAddress(u8x8); |
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149 | handle_i2c = i2c_cmd_link_create(); |
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150 | ESP_LOGD(TAG, "Start I2C transfer to %02X.", i2c_address>>1); |
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151 | ESP_ERROR_CHECK(i2c_master_start(handle_i2c)); |
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152 | ESP_ERROR_CHECK(i2c_master_write_byte(handle_i2c, i2c_address | I2C_MASTER_WRITE, ACK_CHECK_EN)); |
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153 | break; |
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154 | } |
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155 | |
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156 | case U8X8_MSG_BYTE_END_TRANSFER: { |
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157 | ESP_LOGD(TAG, "End I2C transfer."); |
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158 | ESP_ERROR_CHECK(i2c_master_stop(handle_i2c)); |
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159 | ESP_ERROR_CHECK(i2c_master_cmd_begin(I2C_MASTER_NUM, handle_i2c, I2C_TIMEOUT_MS / portTICK_RATE_MS)); |
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160 | i2c_cmd_link_delete(handle_i2c); |
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161 | break; |
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162 | } |
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163 | } |
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164 | return 0; |
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165 | } // u8g2_esp32_i2c_byte_cb |
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166 | |
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167 | /* |
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168 | * HAL callback function as prescribed by the U8G2 library. This callback is invoked |
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169 | * to handle callbacks for GPIO and delay functions. |
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170 | */ |
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171 | uint8_t u8g2_esp32_gpio_and_delay_cb(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) { |
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172 | ESP_LOGD(TAG, "gpio_and_delay_cb: Received a msg: %d, arg_int: %d, arg_ptr: %p", msg, arg_int, arg_ptr); |
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173 | |
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174 | switch(msg) { |
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175 | // Initialize the GPIO and DELAY HAL functions. If the pins for DC and RESET have been |
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176 | // specified then we define those pins as GPIO outputs. |
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177 | case U8X8_MSG_GPIO_AND_DELAY_INIT: { |
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178 | uint64_t bitmask = 0; |
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179 | if (u8g2_esp32_hal.dc != U8G2_ESP32_HAL_UNDEFINED) { |
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180 | bitmask = bitmask | (1ull<<u8g2_esp32_hal.dc); |
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181 | } |
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182 | if (u8g2_esp32_hal.reset != U8G2_ESP32_HAL_UNDEFINED) { |
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183 | bitmask = bitmask | (1ull<<u8g2_esp32_hal.reset); |
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184 | } |
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185 | if (u8g2_esp32_hal.cs != U8G2_ESP32_HAL_UNDEFINED) { |
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186 | bitmask = bitmask | (1ull<<u8g2_esp32_hal.cs); |
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187 | } |
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188 | |
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189 | if (bitmask==0) { |
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190 | break; |
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191 | } |
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192 | gpio_config_t gpioConfig; |
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193 | gpioConfig.pin_bit_mask = bitmask; |
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194 | gpioConfig.mode = GPIO_MODE_OUTPUT; |
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195 | gpioConfig.pull_up_en = GPIO_PULLUP_DISABLE; |
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196 | gpioConfig.pull_down_en = GPIO_PULLDOWN_ENABLE; |
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197 | gpioConfig.intr_type = GPIO_INTR_DISABLE; |
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198 | gpio_config(&gpioConfig); |
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199 | break; |
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200 | } |
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201 | |
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202 | // Set the GPIO reset pin to the value passed in through arg_int. |
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203 | case U8X8_MSG_GPIO_RESET: |
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204 | if (u8g2_esp32_hal.reset != U8G2_ESP32_HAL_UNDEFINED) { |
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205 | gpio_set_level(u8g2_esp32_hal.reset, arg_int); |
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206 | } |
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207 | break; |
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208 | // Set the GPIO client select pin to the value passed in through arg_int. |
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209 | case U8X8_MSG_GPIO_CS: |
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210 | if (u8g2_esp32_hal.cs != U8G2_ESP32_HAL_UNDEFINED) { |
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211 | gpio_set_level(u8g2_esp32_hal.cs, arg_int); |
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212 | } |
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213 | break; |
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214 | // Set the Software I²C pin to the value passed in through arg_int. |
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215 | case U8X8_MSG_GPIO_I2C_CLOCK: |
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216 | if (u8g2_esp32_hal.scl != U8G2_ESP32_HAL_UNDEFINED) { |
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217 | gpio_set_level(u8g2_esp32_hal.scl, arg_int); |
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218 | // printf("%c",(arg_int==1?'C':'c')); |
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219 | } |
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220 | break; |
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221 | // Set the Software I²C pin to the value passed in through arg_int. |
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222 | case U8X8_MSG_GPIO_I2C_DATA: |
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223 | if (u8g2_esp32_hal.sda != U8G2_ESP32_HAL_UNDEFINED) { |
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224 | gpio_set_level(u8g2_esp32_hal.sda, arg_int); |
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225 | // printf("%c",(arg_int==1?'D':'d')); |
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226 | } |
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227 | break; |
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228 | |
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229 | // Delay for the number of milliseconds passed in through arg_int. |
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230 | case U8X8_MSG_DELAY_MILLI: |
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231 | vTaskDelay(arg_int/portTICK_PERIOD_MS); |
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232 | break; |
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233 | } |
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234 | return 0; |
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235 | } // u8g2_esp32_gpio_and_delay_cb |