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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 66 | mjames | 1 | /* |
| 2 | * display.cpp |
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| 3 | * |
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| 4 | * Created on: 30 Nov 2020 |
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| 5 | * Author: mike |
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| 6 | */ |
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| 7 | |||
| 8 | #include "main.h" |
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| 9 | #include "display.h" |
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| 10 | #include "switches.h" |
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| 11 | #include "nvram.h" |
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| 12 | #include <cstring> |
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| 13 | #include "libOLED/stm32_halDisplay.H" |
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| 14 | #include "libOLED/fontclass.H" |
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| 15 | #include "libOLED/displayDial.H" |
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| 16 | #include "libPlx/displayInfo.H" |
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| 17 | #include "libOLED/ap_math.h" |
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| 18 | |||
| 19 | #include "splash.H" |
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| 20 | |||
| 21 | namespace |
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| 22 | { |
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| 23 | int const WIDTH = 128; |
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| 24 | int const HEIGHT = 64; |
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| 25 | int const DISPLAY_RAMWIDTH = 132; |
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| 26 | } |
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| 27 | |||
| 28 | uint8_t displayBuffer[2][dataSize(WIDTH, HEIGHT)]; |
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| 29 | |||
| 30 | stm32_halDisplay_t displays[MAX_DISPLAYS] = |
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| 31 | {stm32_halDisplay_t(WIDTH, HEIGHT, DISPLAY_RAMWIDTH, displayBuffer[0], |
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| 32 | &hspi1, |
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| 33 | SPI_CD_GPIO_Port, |
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| 34 | SPI_CD_Pin, |
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| 35 | SPI_RESET_GPIO_Port, |
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| 36 | SPI_RESET_Pin, |
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| 37 | SPI_NSS1_GPIO_Port, |
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| 38 | SPI_NSS1_Pin), |
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| 39 | stm32_halDisplay_t(WIDTH, HEIGHT, |
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| 40 | DISPLAY_RAMWIDTH, |
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| 41 | displayBuffer[1], |
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| 42 | &hspi1, |
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| 43 | SPI_CD_GPIO_Port, |
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| 44 | SPI_CD_Pin, |
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| 45 | SPI_RESET_GPIO_Port, |
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| 46 | SPI_RESET_Pin, |
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| 47 | SPI_NSS2_GPIO_Port, |
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| 48 | SPI_NSS2_Pin)}; |
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| 49 | |||
| 50 | displayDial_t dials[MAX_DISPLAYS] = |
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| 67 | mjames | 51 | {displayFullDial_t(displays[0]), displayFullDial_t(displays[1])}; |
| 66 | mjames | 52 | #if defined __cplusplus |
| 53 | extern "C" |
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| 54 | { |
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| 55 | #endif |
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| 56 | static void |
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| 57 | showMinMax(display_t &display, uint8_t dp_pos, int16_t int_min, |
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| 58 | uint16_t int_max) |
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| 59 | { |
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| 60 | const char padding[] = " "; |
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| 61 | // left justified display of minimum |
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| 62 | int8_t width = display.fontSigDigits(small_font, 0, 0, 0, dp_pos, int_min, WHITE); |
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| 63 | // pad with spaces if fewer than 6 characters are used. |
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| 64 | if (width != 6) |
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| 65 | display.printString(small_font, padding, 6 - width, WHITE); |
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| 66 | |||
| 67 | display.gotoxy(0, 8); |
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| 68 | display.printString(small_font, "Min", 3, WHITE); |
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| 69 | |||
| 70 | // right justified display of maximum |
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| 71 | width = display.fontSigDigits(small_font, 120, 0, 1, dp_pos, int_max, WHITE); |
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| 72 | // right justified display of maximum : pad spaces to left |
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| 73 | if (width != 6) |
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| 74 | display.printString(small_font, padding, 6 - width, WHITE); |
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| 75 | |||
| 76 | display.gotoxy(110, 8); |
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| 77 | display.printString(small_font, "Max", 3, WHITE); |
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| 78 | } |
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| 79 | |||
| 80 | void |
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| 81 | cc_init() |
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| 82 | { |
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| 83 | for (auto i = 0; i < MAX_DISPLAYS; i++) |
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| 84 | { |
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| 85 | display_t &display = displays[i]; |
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| 86 | if (i == 0) |
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| 87 | display.reset(); |
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| 88 | display.init(); |
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| 89 | display.clearDisplay(BLACK); |
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| 90 | displaySplash(display); |
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| 91 | display.gotoxy(8, 32); |
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| 92 | display.printString(large_font, i == 0 ? "1" : "2", 1, BLACK); |
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| 93 | display.display(); |
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| 94 | } |
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| 95 | |||
| 96 | HAL_Delay(1000); |
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| 97 | |||
| 98 | for (auto i = 0; i < MAX_DISPLAYS; i++) |
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| 99 | { |
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| 100 | display_t &display = displays[i]; |
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| 101 | display.clearDisplay(BLACK); |
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| 102 | display.setPixelMode(WHITE); |
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| 103 | display.display(); |
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| 104 | context_t &context = contexts[i]; |
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| 105 | context.dial_timer = 200; // enough time to see at least one frame of PLX before NVRAM check |
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| 106 | context.dial1 = -1; |
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| 107 | context.OldObservation = -1; |
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| 108 | context.OldObservationIndex = -1; |
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| 109 | } |
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| 110 | } |
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| 111 | |||
| 112 | // Check to see if there is an observation/instance in the dynamic data array |
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| 113 | // that matches the current observation/instance in the NVRAM |
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| 114 | |||
| 115 | void |
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| 116 | cc_check_nvram(int dialIndex) |
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| 117 | { |
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| 118 | if (dialIndex < 0 && dialIndex > MAX_DISPLAYS) |
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| 119 | return; |
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| 67 | mjames | 120 | // algorithm only works when there is a vector of observations |
| 121 | if(PLXItems == 0) |
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| 122 | return; |
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| 66 | mjames | 123 | context_t &context = contexts[dialIndex]; |
| 124 | |||
| 125 | // check for timer timeout on consistent timer |
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| 126 | |||
| 127 | if (context.dial_timer) |
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| 128 | { |
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| 129 | context.dial_timer--; |
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| 130 | if (context.dial_timer == 0) |
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| 131 | { |
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| 132 | context.dial_timer = DialTimeout; |
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| 133 | int i; |
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| 134 | // use dialIndex+1 as tag for data : always non-zero. |
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| 135 | nvram_info_t *dial_nvram = find_nvram_data(dialIndex + 1); |
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| 136 | |||
| 137 | if (dial_nvram && context.knobPos < 0) |
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| 138 | { |
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| 139 | for (i = 0; i < PLXItems; i++) |
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| 140 | if ((Info[i].observation == dial_nvram->data.observation) && (Info[i].instance == dial_nvram->data.instance)) |
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| 141 | { |
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| 142 | context.knobPos = i; |
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| 143 | return; |
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| 144 | } |
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| 145 | } |
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| 146 | if (context.knobPos == -1) |
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| 147 | context.knobPos = dialIndex; // timed out , not in NVRAM, use a default |
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| 148 | |||
| 149 | // is this a change since the last timeout ? |
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| 150 | if (!dial_nvram || (Info[context.knobPos].observation != dial_nvram->data.observation) || (Info[context.knobPos].instance != dial_nvram->data.instance)) |
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| 151 | { |
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| 152 | |||
| 153 | // store the observation and instance in the NVRAM, not dial position. |
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| 154 | nvram_info_t curr_val; |
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| 155 | curr_val.data.observation = Info[context.knobPos].observation; |
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| 156 | curr_val.data.instance = Info[context.knobPos].instance; |
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| 157 | curr_val.data.tag = dialIndex + 1; |
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| 158 | |||
| 159 | write_nvram_data(curr_val); |
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| 160 | } |
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| 161 | } |
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| 162 | } |
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| 163 | } |
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| 164 | |||
| 165 | int |
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| 166 | cc_display(int dialIndex, int suppressIndex) |
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| 167 | |||
| 168 | { |
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| 169 | if (dialIndex < 0 && dialIndex > MAX_DISPLAYS) |
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| 170 | return -1; |
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| 171 | context_t &context = contexts[dialIndex]; |
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| 172 | displayDial_t &dial = dials[dialIndex]; |
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| 173 | stm32_halDisplay_t &display = displays[dialIndex]; |
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| 174 | int itemIndex = context.knobPos; |
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| 175 | char buff[10]; |
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| 176 | int i; |
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| 177 | |||
| 178 | // check for item suppression |
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| 179 | if (itemIndex == suppressIndex) |
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| 180 | { |
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| 181 | context.dial1 = -1; |
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| 182 | context.OldObservation = -1; |
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| 183 | context.OldObservationIndex = -1; |
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| 184 | |||
| 185 | display.clearDisplay(); |
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| 186 | display.display(); |
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| 187 | return -1; // we suppressed this display |
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| 188 | } |
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| 189 | |||
| 190 | // clear startup display off the screen |
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| 191 | if (context.OldObservation == -1) |
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| 192 | display.clearDisplay(BLACK); |
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| 193 | |||
| 194 | int DataVal = Info[itemIndex].data; // data reading |
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| 195 | int Observation = Info[itemIndex].observation; |
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| 196 | int ObservationIndex = Info[itemIndex].instance; |
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| 197 | // now to convert the readings and format strings |
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| 198 | // find out limits |
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| 199 | char *msg; |
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| 200 | int len; |
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| 201 | |||
| 202 | // if the user presses the dial then reset min/max to current value |
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| 203 | if (push_pos[dialIndex] == 1) |
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| 204 | { |
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| 205 | Info[itemIndex].Max = DataVal; |
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| 206 | Info[itemIndex].Min = DataVal; // 12 bit max value |
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| 207 | } |
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| 208 | |||
| 209 | // detect change in observation being displayed, reset the dial |
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| 210 | if (Observation < PLX_MAX_OBS) |
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| 211 | { |
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| 212 | if (Observation != context.OldObservation || ObservationIndex != context.OldObservationIndex) |
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| 213 | { |
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| 214 | |||
| 215 | display.clearDisplay(); |
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| 216 | dial.draw_scale(DisplayInfo[Observation].Low, |
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| 217 | DisplayInfo[Observation].High, 12, 1, |
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| 218 | DisplayInfo[Observation].TickScale); |
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| 219 | |||
| 220 | dial.draw_limits(); |
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| 221 | |||
| 222 | msg = DisplayInfo[Observation].name; |
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| 223 | len = 7; |
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| 224 | int len1 = ObservationIndex > 0 ? len - 1 : len; |
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| 225 | for (i = 0; i < len1 && msg[i]; i++) |
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| 226 | { |
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| 227 | buff[i] = msg[i]; |
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| 228 | } |
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| 229 | if (ObservationIndex > 0 && i < len) |
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| 230 | { |
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| 231 | buff[i++] = ObservationIndex + '1'; |
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| 232 | } |
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| 233 | |||
| 234 | display.gotoxy(64 - i * 4, 48); |
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| 235 | display.printString(large_font, buff, i, WHITE); |
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| 236 | |||
| 237 | context.OldObservation = Observation; |
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| 238 | context.OldObservationIndex = ObservationIndex; |
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| 239 | context.dial1 = -1; // do not display old needle, cleared screen |
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| 240 | display.display(); |
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| 241 | } |
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| 242 | } |
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| 243 | |||
| 244 | if (Info[itemIndex].updated) |
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| 245 | { |
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| 246 | Info[itemIndex].updated = 0; |
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| 247 | |||
| 248 | double max_rdg; |
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| 249 | double min_rdg; |
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| 250 | double cur_rdg; |
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| 251 | int int_rdg; |
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| 252 | int int_max; |
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| 253 | int int_min; |
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| 254 | |||
| 255 | max_rdg = ConveriMFDRaw2Data((enum PLX_Observations)Observation, DisplayInfo[Observation].Units, |
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| 256 | Info[itemIndex].Max); |
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| 257 | min_rdg = ConveriMFDRaw2Data((enum PLX_Observations)Observation, DisplayInfo[Observation].Units, |
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| 258 | Info[itemIndex].Min); |
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| 259 | cur_rdg = ConveriMFDRaw2Data((enum PLX_Observations)Observation, DisplayInfo[Observation].Units, |
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| 260 | Info[itemIndex].data); |
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| 261 | int dp_pos; // where to print the decimal place |
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| 262 | float scale = 1.0; |
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| 263 | switch (DisplayInfo[Observation].DP) |
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| 264 | { |
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| 265 | default: |
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| 266 | case 0: |
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| 267 | scale = 1.0; |
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| 268 | dp_pos = display_t::NO_DECIMAL; |
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| 269 | break; |
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| 270 | case 1: |
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| 271 | scale = 10.0; |
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| 272 | dp_pos = 1; |
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| 273 | break; |
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| 274 | case 2: |
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| 275 | scale = 100.0; |
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| 276 | dp_pos = 2; |
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| 277 | break; |
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| 278 | } |
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| 279 | int_rdg = (int)(cur_rdg * scale); |
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| 280 | int_max = (int)(max_rdg * scale); |
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| 281 | int_min = (int)(min_rdg * scale); |
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| 282 | |||
| 283 | cur_rdg -= DisplayInfo[Observation].Low; |
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| 284 | cur_rdg = ap_math::SINE_STEPS * cur_rdg / (DisplayInfo[Observation].High - DisplayInfo[Observation].Low); |
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| 285 | |||
| 286 | context.dial0 = (int)cur_rdg; |
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| 287 | |||
| 288 | display.gotoxy(32, 28); |
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| 289 | display.fontDigits(large_font, 4, dp_pos, int_rdg, WHITE); |
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| 290 | |||
| 291 | display.printString(small_font, DisplayInfo[Observation].suffix, |
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| 292 | strlen(DisplayInfo[Observation].suffix)); |
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| 293 | display.printString(small_font, " ", |
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| 294 | 3 - strlen(DisplayInfo[Observation].suffix)); |
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| 295 | // print value overlaid by needle |
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| 296 | |||
| 297 | /* old needle un-draw */ |
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| 298 | if (context.dial1 >= 0) |
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| 299 | { |
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| 300 | dial.draw_needle(context.dial1); |
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| 301 | } |
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| 302 | dial.draw_needle(context.dial0); |
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| 303 | context.dial1 = context.dial0; |
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| 304 | showMinMax(display, dp_pos, int_min, int_max); |
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| 305 | } |
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| 306 | else |
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| 307 | { |
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| 308 | if (Info[itemIndex].lastUpdated && ((HAL_GetTick() - Info[itemIndex].lastUpdated) > 1000)) |
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| 309 | { |
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| 310 | context.OldObservation = -1; // force a redraw of axes on next entry point |
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| 311 | Info[itemIndex].lastUpdated = 0; // and stop further timeouts. |
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| 312 | } |
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| 313 | } |
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| 314 | |||
| 315 | display.gotoxy(0, 32); |
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| 316 | |||
| 317 | // display BT connection status |
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| 318 | display.printString(small_font, btConnected() ? "\x81" : " ", 1); |
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| 319 | |||
| 320 | display.display(); |
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| 321 | |||
| 322 | return itemIndex; |
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| 323 | } |
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| 324 | } |