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Rev | Author | Line No. | Line |
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50 | 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), stm32_halDisplay_t (WIDTH, HEIGHT, |
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39 | DISPLAY_RAMWIDTH, |
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40 | displayBuffer[1], |
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41 | &hspi1, |
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42 | SPI_CD_GPIO_Port, |
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43 | SPI_CD_Pin, |
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44 | SPI_RESET_GPIO_Port, |
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45 | SPI_RESET_Pin, |
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46 | SPI_NSS2_GPIO_Port, |
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47 | SPI_NSS2_Pin) }; |
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48 | |||
49 | displayDial_t dials[MAX_DISPLAYS] = |
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50 | { displayDial_t (displays[0], 64, 60, 60, 90), displayDial_t (displays[1], 64, |
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51 | 60, 60, 90) }; |
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52 | #if defined __cplusplus |
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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 | display.fontSigDigits (small_font, 0, 0, 0, dp_pos, int_min, WHITE); |
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61 | display.gotoxy (0, 8); |
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62 | |||
54 | mjames | 63 | display.printString (small_font, "Min", 3, WHITE); |
50 | mjames | 64 | |
65 | display.fontSigDigits (small_font, 120, 0, 1, dp_pos, int_max, WHITE); |
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66 | display.gotoxy (110, 8); |
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67 | display.printString (small_font, "Max", 3, WHITE); |
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68 | } |
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69 | |||
70 | void |
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71 | cc_init () |
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72 | { |
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73 | for (auto i = 0; i < MAX_DISPLAYS; i++) |
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74 | { |
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75 | display_t &display = displays[i]; |
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76 | if (i == 0) |
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77 | display.reset (); |
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78 | display.init (); |
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55 | mjames | 79 | display.clearDisplay (BLACK); |
50 | mjames | 80 | displaySplash (display); |
81 | display.gotoxy (8, 32); |
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82 | display.printString (large_font, i == 0 ? "1" : "2", 1, BLACK); |
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83 | display.display (); |
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84 | } |
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85 | |||
86 | HAL_Delay (1000); |
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87 | |||
88 | for (auto i = 0; i < MAX_DISPLAYS; i++) |
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89 | { |
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90 | display_t &display = displays[i]; |
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56 | mjames | 91 | display.clearDisplay (BLACK); |
54 | mjames | 92 | display.setPixelMode (WHITE); |
50 | mjames | 93 | display.display (); |
56 | mjames | 94 | context_t &context = contexts[i]; |
57 | mjames | 95 | context.dial_timer = 200; // enough time to see at least one frame of PLX before NVRAM check |
56 | mjames | 96 | context.dial1 = -1; |
57 | mjames | 97 | context.OldObservation = -1; |
98 | context.OldObservationIndex = -1; |
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50 | mjames | 99 | } |
56 | mjames | 100 | |
50 | mjames | 101 | } |
102 | |||
56 | mjames | 103 | // Check to see if there is an observation/instance in the dynamic data array |
104 | // that matches the current observation/instance in the NVRAM |
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57 | mjames | 105 | |
106 | void |
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107 | cc_check_nvram (int dialIndex) |
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56 | mjames | 108 | { |
109 | if (dialIndex < 0 && dialIndex > MAX_DISPLAYS) |
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57 | mjames | 110 | return; |
56 | mjames | 111 | context_t &context = contexts[dialIndex]; |
57 | mjames | 112 | |
56 | mjames | 113 | // check for timer timeout on consistent timer |
114 | |||
115 | if (context.dial_timer) |
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116 | { |
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117 | context.dial_timer--; |
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118 | if (context.dial_timer == 0) |
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119 | { |
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120 | context.dial_timer = DialTimeout; |
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121 | int i; |
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57 | mjames | 122 | if (context.knobPos < 0) |
56 | mjames | 123 | { |
124 | for (i = 0; i < PLXItems; i++) |
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125 | if (Info[i].observation |
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126 | == dial_nvram[dialIndex].data.observation |
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127 | && Info[i].instance |
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128 | == dial_nvram[dialIndex].data.instance) |
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129 | { |
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57 | mjames | 130 | context.knobPos = i; |
131 | return; |
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56 | mjames | 132 | } |
133 | } |
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57 | mjames | 134 | if (context.knobPos == -1) |
135 | context.knobPos = dialIndex; // timed out , not in NVRAM, use a default |
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56 | mjames | 136 | |
137 | // is this a change since the last timeout ? |
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57 | mjames | 138 | if (Info[context.knobPos].observation |
56 | mjames | 139 | != dial_nvram[dialIndex].data.observation |
57 | mjames | 140 | || Info[context.knobPos].instance |
56 | mjames | 141 | != dial_nvram[dialIndex].data.instance) |
142 | { |
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143 | |||
144 | // store the observation and instance in the NVRAM, not dial position. |
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145 | nvram_info_t curr_val; |
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57 | mjames | 146 | curr_val.data.observation = Info[context.knobPos].observation; |
147 | curr_val.data.instance = Info[context.knobPos].instance; |
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56 | mjames | 148 | uint32_t addr = (uint32_t) (&dial_nvram[dialIndex]); |
149 | WriteUint32NVRAM (addr, curr_val.u32); |
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150 | } |
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151 | } |
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152 | } |
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153 | } |
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154 | |||
155 | int |
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57 | mjames | 156 | cc_display (int dialIndex, int suppressIndex) |
50 | mjames | 157 | |
158 | { |
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159 | if (dialIndex < 0 && dialIndex > MAX_DISPLAYS) |
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160 | return -1; |
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161 | context_t &context = contexts[dialIndex]; |
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162 | displayDial_t &dial = dials[dialIndex]; |
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163 | stm32_halDisplay_t &display = displays[dialIndex]; |
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57 | mjames | 164 | int itemIndex = context.knobPos; |
50 | mjames | 165 | char buff[10]; |
166 | int i; |
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167 | |||
168 | // check for item suppression |
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169 | if (itemIndex == suppressIndex) |
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170 | { |
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171 | context.dial1 = -1; |
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172 | context.OldObservation = -1; |
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173 | context.OldObservationIndex = -1; |
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174 | |||
175 | display.clearDisplay (); |
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176 | display.display (); |
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177 | return -1; // we suppressed this display |
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178 | } |
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179 | |||
180 | // clear startup display off the screen |
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181 | if (context.OldObservation == -1) |
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56 | mjames | 182 | display.clearDisplay (BLACK); |
50 | mjames | 183 | |
56 | mjames | 184 | int DataVal = Info[itemIndex].data; // data reading |
185 | int Observation = Info[itemIndex].observation; |
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186 | int ObservationIndex = Info[itemIndex].instance; |
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50 | mjames | 187 | // now to convert the readings and format strings |
188 | // find out limits |
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189 | char *msg; |
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190 | int len; |
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191 | |||
192 | // if the user presses the dial then reset min/max to current value |
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193 | if (push_pos[dialIndex] == 1) |
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194 | { |
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56 | mjames | 195 | Info[itemIndex].Max = DataVal; |
196 | Info[itemIndex].Min = DataVal; // 12 bit max value |
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50 | mjames | 197 | } |
198 | |||
199 | if (Observation < PLX_MAX_OBS) |
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200 | { |
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201 | if (Observation != context.OldObservation |
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202 | || ObservationIndex != context.OldObservationIndex) |
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203 | { |
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204 | |||
205 | display.clearDisplay (); |
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206 | dial.draw_scale (DisplayInfo[Observation].Low, |
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207 | DisplayInfo[Observation].High, 12, 1, |
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208 | DisplayInfo[Observation].TickScale); |
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209 | |||
210 | dial.draw_limits (); |
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211 | |||
212 | msg = DisplayInfo[Observation].name; |
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213 | len = 7; |
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214 | int len1 = ObservationIndex > 0 ? len - 1 : len; |
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215 | for (i = 0; i < len1 && msg[i]; i++) |
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216 | { |
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217 | buff[i] = msg[i]; |
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218 | } |
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219 | if (ObservationIndex > 0 && i < len) |
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220 | { |
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221 | buff[i++] = ObservationIndex + '1'; |
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222 | } |
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223 | |||
224 | display.gotoxy (64 - i * 4, 48); |
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225 | display.printString (large_font, buff, i, WHITE); |
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226 | |||
227 | context.OldObservation = Observation; |
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228 | context.OldObservationIndex = ObservationIndex; |
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57 | mjames | 229 | context.dial1 = -1; // do not display old needl, cleared screen |
50 | mjames | 230 | display.display (); |
231 | |||
232 | } |
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233 | |||
234 | } |
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235 | |||
236 | double max_rdg; |
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237 | double min_rdg; |
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238 | double cur_rdg; |
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239 | int int_rdg; |
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240 | int int_max; |
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241 | int int_min; |
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242 | |||
243 | max_rdg = ConveriMFDRaw2Data (Observation, DisplayInfo[Observation].Units, |
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56 | mjames | 244 | Info[itemIndex].Max); |
50 | mjames | 245 | min_rdg = ConveriMFDRaw2Data (Observation, DisplayInfo[Observation].Units, |
56 | mjames | 246 | Info[itemIndex].Min); |
50 | mjames | 247 | cur_rdg = ConveriMFDRaw2Data (Observation, DisplayInfo[Observation].Units, |
56 | mjames | 248 | Info[itemIndex].data); |
50 | mjames | 249 | |
250 | int dp_pos; // where to print the decimal place |
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251 | float scale = 1.0; |
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252 | switch (DisplayInfo[Observation].DP) |
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253 | { |
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254 | default: |
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255 | case 0: |
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256 | scale = 1.0; |
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257 | dp_pos = display_t::NO_DECIMAL; |
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258 | break; |
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259 | case 1: |
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260 | scale = 10.0; |
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261 | dp_pos = 1; |
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262 | break; |
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263 | case 2: |
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264 | scale = 100.0; |
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265 | dp_pos = 2; |
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266 | break; |
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267 | |||
268 | } |
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269 | int_rdg = (int) (cur_rdg * scale); |
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270 | int_max = (int) (max_rdg * scale); |
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271 | int_min = (int) (min_rdg * scale); |
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272 | |||
273 | cur_rdg -= DisplayInfo[Observation].Low; |
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274 | cur_rdg = ap_math::SINE_STEPS * cur_rdg |
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275 | / (DisplayInfo[Observation].High - DisplayInfo[Observation].Low); |
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276 | |||
277 | context.dial0 = (int) cur_rdg; |
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278 | |||
279 | display.gotoxy (32, 28); |
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280 | display.fontDigits (large_font, 4, dp_pos, int_rdg, WHITE); |
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281 | |||
282 | display.printString (small_font, DisplayInfo[Observation].suffix, |
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283 | strlen (DisplayInfo[Observation].suffix)); |
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284 | display.printString (small_font, " ", |
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285 | 3 - strlen (DisplayInfo[Observation].suffix)); |
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286 | // print value overlaid by needle |
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287 | |||
288 | /* old needle un-draw */ |
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289 | if (context.dial1 >= 0) |
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290 | { |
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291 | dial.draw_needle (context.dial1); |
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292 | } |
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293 | dial.draw_needle (context.dial0); |
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294 | context.dial1 = context.dial0; |
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295 | showMinMax (display, dp_pos, int_min, int_max); |
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296 | |||
297 | display.display (); |
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298 | |||
299 | return itemIndex; |
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300 | } |
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301 | |||
302 | } |
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303 |