551 lines
16 KiB
C++
551 lines
16 KiB
C++
#ifdef HAS_DISPLAY
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/*
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Display-Mask (128 x 64 pixel):
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| | |
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| 11111111112
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|012345678901234567890 Font
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----------------------- ---------
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0|PAX:aabbccdd STRETCHED
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1|PAX:aabbccdd STRETCHED
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2|
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3|B:a.bcV Sats:ab ch:ab SMALL
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4|WIFI:abcde BLTH:abcde SMALL
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5|RLIM:abcd Mem:abcdKB SMALL
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6|27.Feb 2019 20:27:00* SMALL
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7|yyyyyyyyyyyyy xx SFab SMALL
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* = char {L|G|R|?} indicates time source,
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inverse = clock controller is active,
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pulsed = pps input signal is active
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y = LMIC event message
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xx = payload sendqueue length
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ab = LMIC spread factor
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FONT_SMALL: 6x8px = 21 chars / line
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FONT_NORMAL: 8x8px = 16 chars / line
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FONT_STRETCHED: 16x32px = 8 chars / line
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*/
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// Basic Config
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#include "globals.h"
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#include <ss_oled.h>
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#include <esp_spi_flash.h> // needed for reading ESP32 chip attributes
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// local Tag for logging
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static const char TAG[] = __FILE__;
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// helper array for converting month values to text
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const char *printmonth[] = {"xxx", "Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
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uint8_t DisplayIsOn = 0;
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uint8_t displaybuf[DISPLAY_WIDTH * DISPLAY_HEIGHT / 8] = {0};
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static uint8_t plotbuf[DISPLAY_WIDTH * DISPLAY_HEIGHT / 8] = {0};
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QRCode qrcode;
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SSOLED ssoled;
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void setup_display(int contrast) {
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int rc = oledInit(&ssoled, MY_OLED, OLED_ADDR, DISPLAY_FLIP, OLED_INVERT,
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USE_HW_I2C, MY_OLED_SDA, MY_OLED_SCL, MY_OLED_RST,
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400000L); // use standard I2C bus at 400Khz
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assert(rc != OLED_NOT_FOUND);
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// set display buffer
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oledSetBackBuffer(&ssoled, displaybuf);
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if (contrast)
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oledSetContrast(&ssoled, contrast);
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// clear display
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oledFill(&ssoled, 0, 1);
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}
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void init_display(bool verbose) {
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// block i2c bus access
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if (!I2C_MUTEX_LOCK())
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ESP_LOGV(TAG, "[%0.3f] i2c mutex lock failed", millis() / 1000.0);
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else {
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setup_display(DISPLAYCONTRAST);
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if (verbose) {
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// show startup screen
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// to come -> display .bmp file with logo
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// show chip information
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#if (VERBOSE)
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esp_chip_info_t chip_info;
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esp_chip_info(&chip_info);
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dp_printf(0, 0, 0, 0, "** PAXCOUNTER **");
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dp_printf(0, 1, 0, 0, "Software v%s", PROGVERSION);
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dp_printf(0, 3, 0, 0, "ESP32 %d cores", chip_info.cores);
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dp_printf(0, 4, 0, 0, "Chip Rev.%d", chip_info.revision);
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dp_printf(0, 5, 0, 0, "WiFi%s%s",
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(chip_info.features & CHIP_FEATURE_BT) ? "/BT" : "",
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(chip_info.features & CHIP_FEATURE_BLE) ? "/BLE" : "");
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dp_printf(0, 6, 0, 0, "%dMB %s Flash",
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spi_flash_get_chip_size() / (1024 * 1024),
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(chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "int."
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: "ext.");
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// give user some time to read or take picture
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dp_dump(displaybuf);
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delay(2000);
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oledFill(&ssoled, 0x00, 1);
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#endif // VERBOSE
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#if (HAS_LORA)
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// generate DEVEUI as QR code and text
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uint8_t buf[8];
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char deveui[17];
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os_getDevEui((u1_t *)buf);
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snprintf(deveui, 17, "%016llX", *((uint64_t *)&buf));
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// display DEVEUI as QR code on the left
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oledSetContrast(&ssoled, 30);
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dp_printqr(3, 3, deveui);
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// display DEVEUI as plain text on the right
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dp_printf(72, 0, FONT_NORMAL, 0, "LORAWAN");
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dp_printf(72, 1, FONT_NORMAL, 0, "DEVEUI:");
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for (uint8_t i = 0; i <= 3; i++)
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dp_printf(80, i + 3, FONT_NORMAL, 0, "%4.4s", deveui + i * 4);
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// give user some time to read or take picture
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dp_dump(displaybuf);
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delay(8000);
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oledSetContrast(&ssoled, DISPLAYCONTRAST);
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oledFill(&ssoled, 0x00, 1);
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#endif // HAS_LORA
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} // verbose
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oledPower(&ssoled, cfg.screenon); // set display off if disabled
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I2C_MUTEX_UNLOCK(); // release i2c bus access
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} // mutex
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} // init_display
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void refreshTheDisplay(bool nextPage) {
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#ifndef HAS_BUTTON
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static uint32_t framecounter = 0;
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#endif
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// update histogram
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oledPlotCurve(macs.size(), false);
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// if display is switched off we don't refresh it to relax cpu
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if (!DisplayIsOn && (DisplayIsOn == cfg.screenon))
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return;
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const time_t t =
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myTZ.toLocal(now()); // note: call now() here *before* locking mutex!
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// block i2c bus access
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if (!I2C_MUTEX_LOCK())
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ESP_LOGV(TAG, "[%0.3f] i2c mutex lock failed", millis() / 1000.0);
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else {
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// set display on/off according to current device configuration
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if (DisplayIsOn != cfg.screenon) {
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DisplayIsOn = cfg.screenon;
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oledPower(&ssoled, cfg.screenon);
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}
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#ifndef HAS_BUTTON
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// auto flip page if we are in unattended mode
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if ((++framecounter) > (DISPLAYCYCLE * 1000 / DISPLAYREFRESH_MS)) {
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framecounter = 0;
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nextPage = true;
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}
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#endif
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draw_page(t, nextPage);
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dp_dump(displaybuf);
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I2C_MUTEX_UNLOCK(); // release i2c bus access
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} // mutex
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} // refreshDisplay()
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void shutdown_display(void) {
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// block i2c bus access
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if (!I2C_MUTEX_LOCK())
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ESP_LOGV(TAG, "[%0.3f] i2c mutex lock failed", millis() / 1000.0);
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else {
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cfg.screenon = 0;
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oledShutdown();
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delay(DISPLAYREFRESH_MS / 1000 * 1.1);
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I2C_MUTEX_UNLOCK(); // release i2c bus access
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}
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}
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void draw_page(time_t t, bool nextpage) {
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// write display content to display buffer
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// nextpage = true -> flip 1 page
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static uint8_t DisplayPage = 0;
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char timeState;
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#if (HAS_GPS)
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static bool wasnofix = true;
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#endif
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// line 1/2: pax counter
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dp_printf(0, 0, FONT_STRETCHED, 0, "PAX:%-4d",
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macs.size()); // display number of unique macs total Wifi + BLE
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start:
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if (nextpage) {
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DisplayPage = (DisplayPage >= DISPLAY_PAGES - 1) ? 0 : (DisplayPage + 1);
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oledFill(&ssoled, 0, 1);
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}
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switch (DisplayPage) {
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// page 0: parameters overview
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// page 1: pax graph
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// page 2: GPS
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// page 3: BME280/680
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// page 4: time
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// page 5: lorawan parameters
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// page 6: blank screen
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// page 0: parameters overview
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case 0:
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// line 3: wifi + bluetooth counters
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#if ((WIFICOUNTER) && (BLECOUNTER))
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if (cfg.wifiscan)
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dp_printf(0, 3, FONT_SMALL, 0, "WIFI:%-5d", macs_wifi);
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else
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dp_printf(0, 3, FONT_SMALL, 0, "%s", "WIFI:off");
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if (cfg.blescan)
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dp_printf(66, 3, FONT_SMALL, 0, "BLTH:%-5d", macs_ble);
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else
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dp_printf(66, 3, FONT_SMALL, 0, "%s", "BLTH:off");
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#elif ((WIFICOUNTER) && (!BLECOUNTER))
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if (cfg.wifiscan)
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dp_printf(0, 3, FONT_SMALL, 0, "WIFI:%-5d", macs_wifi);
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else
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dp_printf(0, 3, FONT_SMALL, 0, "%s", "WIFI:off");
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#elif ((!WIFICOUNTER) && (BLECOUNTER))
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if (cfg.blescan)
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dp_printf(0, 3, FONT_SMALL, 0, "BLTH:%-5d", macs_ble);
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else
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dp_printf(0, 3, FONT_SMALL, 0, "%s", "BLTH:off");
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#else
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dp_printf(0, 3, FONT_SMALL, 0, "%s", "Sniffer disabled");
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#endif
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// line 4: Battery + GPS status + Wifi channel
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#if (defined BAT_MEASURE_ADC || defined HAS_PMU)
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if (batt_voltage == 0xffff)
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dp_printf(0, 4, FONT_SMALL, 0, "%s", "USB ");
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else if (batt_voltage == 0)
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dp_printf(0, 4, FONT_SMALL, 0, "%s", "No batt");
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else
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dp_printf(0, 4, FONT_SMALL, 0, "B:%.2fV", batt_voltage / 1000.0);
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#endif
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#if (HAS_GPS)
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if (gps_hasfix())
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dp_printf(48, 4, FONT_SMALL, 0, "Sats:%.2d", gps.satellites.value());
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else // if no fix then display Sats value inverse
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dp_printf(48, 4, FONT_SMALL, 1, "Sats:%.2d", gps.satellites.value());
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#endif
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dp_printf(96, 4, FONT_SMALL, 0, "ch:%02d", channel);
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// line 5: RSSI limiter + free memory
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dp_printf(0, 5, FONT_SMALL, 0, !cfg.rssilimit ? "RLIM:off " : "RLIM:%-4d",
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cfg.rssilimit);
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dp_printf(66, 5, FONT_SMALL, 0, "Mem:%4dKB", getFreeRAM() / 1024);
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// line 6: time + date
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#if (TIME_SYNC_INTERVAL)
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timeState = TimePulseTick ? ' ' : timeSetSymbols[timeSource];
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TimePulseTick = false;
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dp_printf(0, 6, FONT_SMALL, 0, "%02d.%3s %4d", day(t), printmonth[month(t)],
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year(t));
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dp_printf(72, 6, FONT_SMALL, 0, "%02d:%02d:%02d", hour(t), minute(t),
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second(t));
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// display inverse timeState if clock controller is enabled
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#if (defined HAS_DCF77) || (defined HAS_IF482)
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dp_printf(120, 6, FONT_SMALL, 1, "%c", timeState);
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#else
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dp_printf(120, 6, FONT_SMALL, 0, "%c", timeState);
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#endif
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#endif // TIME_SYNC_INTERVAL
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// line 7: LORA network status
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#if (HAS_LORA)
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// LMiC event display
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dp_printf(0, 7, FONT_SMALL, 0, "%-16s", lmic_event_msg);
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// LORA datarate, display inverse if ADR disabled
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dp_printf(102, 7, FONT_SMALL, !cfg.adrmode, "%-4s",
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getSfName(updr2rps(LMIC.datarate)));
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#endif // HAS_LORA
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break; // page0
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// page 1: pax graph
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case 1:
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dp_dump(plotbuf);
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break; // page1
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// page 2: GPS
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case 2:
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#if (HAS_GPS)
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if (gps_hasfix()) {
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// line 5: clear "No fix"
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if (wasnofix) {
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dp_printf(16, 5, FONT_STRETCHED, 0, " ");
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wasnofix = false;
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}
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// line 3-4: GPS latitude
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dp_printf(0, 3, FONT_STRETCHED, 0, "%c%07.4f",
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gps.location.rawLat().negative ? 'S' : 'N', gps.location.lat());
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// line 6-7: GPS longitude
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dp_printf(0, 6, FONT_STRETCHED, 0, "%c%07.4f",
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gps.location.rawLat().negative ? 'W' : 'E', gps.location.lng());
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} else {
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dp_printf(16, 5, FONT_STRETCHED, 1, "No fix");
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wasnofix = true;
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}
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break; // page2
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#else
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DisplayPage++; // next page
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#endif
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// page 3: BME280/680
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case 3:
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#if (HAS_BME)
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// line 2-3: Temp
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dp_printf(0, 2, FONT_STRETCHED, 0, "TMP:%-2.1f", bme_status.temperature);
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// line 4-5: Hum
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dp_printf(0, 4, FONT_STRETCHED, 0, "HUM:%-2.1f", bme_status.humidity);
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#ifdef HAS_BME680
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// line 6-7: IAQ
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dp_printf(0, 6, FONT_STRETCHED, 0, "IAQ:%-3.0f", bme_status.iaq);
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#else // is BME280 or BMP180
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// line 6-7: Pre
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dp_printf(0, 6, FONT_STRETCHED, 0, "PRE:%-2.1f", bme_status.pressure);
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#endif // HAS_BME680
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break; // page 3
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#else
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DisplayPage++; // next page
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#endif // HAS_BME
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// page 4: time
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case 4:
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dp_printf(0, 4, FONT_LARGE, 0, "%02d:%02d:%02d", hour(t), minute(t),
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second(t));
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break;
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// page 5: lorawan parameters
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case 5:
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#if (HAS_LORA)
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// 3|NtwkID:000000 TXpw:aa
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// 4|DevAdd:00000000 DR:0
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// 5|CHMsk:0000 Nonce:0000
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// 6|CUp:000000 CDn:000000
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// 7|SNR:-0000 RSSI:-0000
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dp_printf(0, 3, FONT_SMALL, 0, "NetwID:%06X TXpw:%-2d",
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LMIC.netid & 0x001FFFFF, LMIC.radio_txpow);
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dp_printf(0, 4, FONT_SMALL, 0, "DevAdd:%08X DR:%1d", LMIC.devaddr,
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LMIC.datarate);
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dp_printf(0, 5, FONT_SMALL, 0, "ChMsk:%04X Nonce:%04X", LMIC.channelMap,
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LMIC.devNonce);
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dp_printf(0, 6, FONT_SMALL, 0, "fUp:%-6d fDn:%-6d",
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LMIC.seqnoUp ? LMIC.seqnoUp - 1 : 0,
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LMIC.seqnoDn ? LMIC.seqnoDn - 1 : 0);
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dp_printf(0, 7, FONT_SMALL, 0, "SNR:%-5d RSSI:%-5d", (LMIC.snr + 2) / 4,
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LMIC.rssi);
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break; // page5
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#else // don't show blank page if we are unattended
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DisplayPage++; // next page
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#endif // HAS_LORA
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// page 6: blank screen
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case 6:
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#ifdef HAS_BUTTON
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oledFill(&ssoled, 0, 1);
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break;
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#else // don't show blank page if we are unattended
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DisplayPage++; // next page
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#endif
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default:
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goto start; // start over
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} // switch
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} // draw_page
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// display helper functions
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void dp_printf(uint16_t x, uint16_t y, uint8_t font, uint8_t inv,
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const char *format, ...) {
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char loc_buf[64];
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char *temp = loc_buf;
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va_list arg;
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va_list copy;
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va_start(arg, format);
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va_copy(copy, arg);
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int len = vsnprintf(temp, sizeof(loc_buf), format, copy);
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va_end(copy);
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if (len < 0) {
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va_end(arg);
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return;
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};
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if (len >= sizeof(loc_buf)) {
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temp = (char *)malloc(len + 1);
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if (temp == NULL) {
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va_end(arg);
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return;
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}
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len = vsnprintf(temp, len + 1, format, arg);
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}
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va_end(arg);
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oledWriteString(&ssoled, 0, x, y, temp, font, inv, false);
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if (temp != loc_buf) {
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free(temp);
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}
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}
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void dp_dump(uint8_t *pBuffer) { oledDumpBuffer(&ssoled, pBuffer); }
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void dp_printqr(uint16_t offset_x, uint16_t offset_y, const char *Message) {
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uint8_t qrcodeData[qrcode_getBufferSize(QR_VERSION)];
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qrcode_initText(&qrcode, qrcodeData, QR_VERSION, ECC_HIGH, Message);
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// draw QR code
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for (uint16_t y = 0; y < qrcode.size; y++)
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for (uint16_t x = 0; x < qrcode.size; x++)
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if (!qrcode_getModule(&qrcode, x, y)) // "black"
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oledfillRect(x * QR_SCALEFACTOR + offset_x,
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y * QR_SCALEFACTOR + offset_y, QR_SCALEFACTOR,
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QR_SCALEFACTOR, false);
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// draw horizontal frame lines
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oledfillRect(0, 0, qrcode.size * QR_SCALEFACTOR + 2 * offset_x, offset_y,
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false);
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oledfillRect(0, qrcode.size * QR_SCALEFACTOR + offset_y,
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qrcode.size * QR_SCALEFACTOR + 2 * offset_x, offset_y, false);
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// draw vertical frame lines
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oledfillRect(0, 0, offset_x, qrcode.size * QR_SCALEFACTOR + 2 * offset_y,
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false);
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oledfillRect(qrcode.size * QR_SCALEFACTOR + offset_x, 0, offset_x,
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qrcode.size * QR_SCALEFACTOR + 2 * offset_y, false);
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}
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void oledfillRect(uint16_t x, uint16_t y, uint16_t width, uint16_t height,
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uint8_t bRender) {
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for (uint16_t xi = x; xi < x + width; xi++)
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oledDrawLine(&ssoled, xi, y, xi, y + height - 1, bRender);
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}
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int oledDrawPixel(uint8_t *buf, const uint16_t x, const uint16_t y,
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const uint8_t dot) {
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if (x > DISPLAY_WIDTH || y > DISPLAY_HEIGHT)
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return -1;
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uint8_t bit = y & 7;
|
|
uint16_t idx = y / 8 * DISPLAY_WIDTH + x;
|
|
|
|
buf[idx] &= ~(1 << bit); // clear pixel
|
|
if (dot)
|
|
buf[idx] |= (1 << bit); // set pixel
|
|
|
|
return 0;
|
|
}
|
|
|
|
void oledScrollBufferHorizontal(uint8_t *buf, const uint16_t width,
|
|
const uint16_t height, bool left) {
|
|
|
|
uint16_t col, page, idx = 0;
|
|
|
|
for (page = 0; page < height / 8; page++) {
|
|
if (left) { // scroll left
|
|
for (col = 0; col < width - 1; col++) {
|
|
idx = page * width + col;
|
|
buf[idx] = buf[idx + 1];
|
|
}
|
|
buf[idx + 1] = 0;
|
|
} else // scroll right
|
|
{
|
|
for (col = width - 1; col > 0; col--) {
|
|
idx = page * width + col;
|
|
buf[idx] = buf[idx - 1];
|
|
}
|
|
buf[idx - 1] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
void oledScrollBufferVertical(uint8_t *buf, const uint16_t width,
|
|
const uint16_t height, int offset) {
|
|
|
|
uint64_t buf_col;
|
|
|
|
if (!offset)
|
|
return; // nothing to do
|
|
|
|
for (uint16_t col = 0; col < DISPLAY_WIDTH; col++) {
|
|
// convert column bytes from display buffer to uint64_t
|
|
buf_col = *(uint64_t *)&buf[col * DISPLAY_HEIGHT / 8];
|
|
|
|
if (offset > 0) // scroll down
|
|
buf_col <<= offset;
|
|
else // scroll up
|
|
buf_col >>= abs(offset);
|
|
|
|
// write back uint64_t to uint8_t display buffer
|
|
*(uint64_t *)&buf[col * DISPLAY_HEIGHT / 8] = buf_col;
|
|
}
|
|
}
|
|
|
|
void oledPlotCurve(uint16_t count, bool reset) {
|
|
|
|
static uint16_t last_count = 0, col = 0, row = 0;
|
|
uint16_t v_scroll = 0;
|
|
|
|
if ((last_count == count) && !reset)
|
|
return;
|
|
|
|
if (reset) { // next count cycle?
|
|
if (col < DISPLAY_WIDTH - 1) // matrix not full -> increment column
|
|
col++;
|
|
else // matrix full -> scroll left 1 dot
|
|
oledScrollBufferHorizontal(plotbuf, DISPLAY_WIDTH, DISPLAY_HEIGHT, true);
|
|
|
|
} else // clear current dot
|
|
oledDrawPixel(plotbuf, col, row, 0);
|
|
|
|
// scroll down, if necessary
|
|
while ((count - v_scroll) > DISPLAY_HEIGHT - 1)
|
|
v_scroll++;
|
|
if (v_scroll)
|
|
oledScrollBufferVertical(plotbuf, DISPLAY_WIDTH, DISPLAY_HEIGHT, v_scroll);
|
|
|
|
// set new dot
|
|
// row = DISPLAY_HEIGHT - 1 - (count - v_scroll) % DISPLAY_HEIGHT;
|
|
row = DISPLAY_HEIGHT - 1 - count - v_scroll;
|
|
last_count = count;
|
|
oledDrawPixel(plotbuf, col, row, 1);
|
|
}
|
|
|
|
#endif // HAS_DISPLAY
|