DigitalInfinity/ESP32-PaxCounter
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ESP32-PaxCounter/src/display.cpp
cyberman54 b8c87f0acf added SD card system logging
2022-11-27 21:50:38 +01:00

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#ifdef HAS_DISPLAY
/*
Display-Mask (128 x 64 pixel):
| | |
| 11111111112
|012345678901234567890 Font
----------------------- ---------
0|PAX:aabbccdd LARGE
1|PAX:aabbccdd LARGE
2|
3|WIFI:abcde BLTH:abcde SMALL
4|Batt:abc% chan:ab SMALL
5|RLIM:abcd Mem:abcdeKB SMALL
6|27.Feb 2019 20:27:00* SMALL
7|yyyyyyyyyyyyy xx SFab SMALL
* = char {L|G|R|?} indicates time source,
inverse = clock controller is active,
pulsed = pps input signal is active
y = LMIC event message
xx = payload sendqueue length
ab = LMIC spread factor
MY_FONT_SMALL: 6x8px = 21 chars / line @ 8 lines
MY_FONT_NORMAL: 8x8px = 16 chars / line @ 8 lines
MY_FONT_STRETCHED: 12x16px = 10 chars / line @ 4 lines
MY_FONT_LARGE: 16x32px = 8 chars / line @ 2 lines
*/
// Basic Config
#include <esp_spi_flash.h> // needed for reading ESP32 chip attributes
#include "globals.h"
#include "display.h"
static uint8_t plotbuf[PLOTBUFFERSIZE] = {0};
uint8_t DisplayIsOn = 0;
hw_timer_t *displayIRQ = NULL;
static QRCode qrcode;
// select display driver
#ifdef HAS_DISPLAY
#if (HAS_DISPLAY) == 1
ONE_BIT_DISPLAY *dp = NULL;
#elif (HAS_DISPLAY) > 1
BB_SPI_LCD *dp = NULL;
#else
#error Unknown display type specified in hal file
#endif
#endif
void dp_setup(int contrast) {
#if (HAS_DISPLAY) == 1 // I2C OLED
dp = new ONE_BIT_DISPLAY;
dp->setI2CPins(MY_DISPLAY_SDA, MY_DISPLAY_SCL, MY_DISPLAY_RST);
dp->setBitBang(false);
dp->I2Cbegin(OLED_TYPE, OLED_ADDR, OLED_FREQUENCY);
dp->allocBuffer(); // render all outputs to lib internal backbuffer
dp->setTextWrap(false);
dp->setRotation(
MY_DISPLAY_FLIP ? 2 : 0); // 0 = no rotation, 1 = 90°, 2 = 180°, 3 = 270°
#elif (HAS_DISPLAY) > 1 // TFT LCD
dp = new BB_SPI_LCD;
dp->begin(TFT_TYPE);
dp->allocBuffer(); // render all outputs to lib internal backbuffer
dp->setRotation(
MY_DISPLAY_FLIP ? 1 : 3); // 0 = no rotation, 1 = 90°, 2 = 180°, 3 = 270°
dp->setTextColor(MY_DISPLAY_FGCOLOR, MY_DISPLAY_BGCOLOR);
#endif
dp_clear();
if (contrast)
dp_contrast(contrast);
}
void dp_init(bool verbose) {
dp_setup(DISPLAYCONTRAST);
// show chip information
if (verbose) {
#if (VERBOSE)
esp_chip_info_t chip_info;
esp_chip_info(&chip_info);
dp_setFont(MY_FONT_NORMAL);
dp->printf("** PAXCOUNTER **\r\n");
dp->printf("Software v%s\r\n", PROGVERSION);
dp->printf("ESP32 %d cores\r\n", chip_info.cores);
dp->printf("Chip Rev.%d\r\n", chip_info.revision);
dp->printf("WiFi%s%s\r\n",
(chip_info.features & CHIP_FEATURE_BT) ? "/BT" : "",
(chip_info.features & CHIP_FEATURE_BLE) ? "/BLE" : "");
dp->printf("%dMB %s Flash", spi_flash_get_chip_size() / (1024 * 1024),
(chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "int." : "ext.");
dp_dump();
delay(2000);
dp_clear();
#endif // VERBOSE
#if (HAS_LORA)
// generate DEVEUI as QR code and text
uint8_t buf[8], *p = buf;
char deveui[17];
os_getDevEui((u1_t *)buf);
snprintf(deveui, 17, "%016llX", (*(uint64_t *)(p)));
// display DEVEUI as QR code on the left
dp_contrast(30);
dp_printqr(3, 3, deveui);
// display DEVEUI as plain text on the right
const int x_offset = QR_SCALEFACTOR * 29 + 14;
dp_setFont(MY_FONT_NORMAL);
dp->setCursor(x_offset, 0);
dp->printf("DEVEUI:\r\n");
for (uint8_t i = 0; i <= 3; i++) {
dp->setCursor(x_offset, i * 8 + 20);
dp->printf("%4.4s", deveui + i * 4);
}
// give user some time to read or take picture
dp_dump();
#if !(BOOTMENU)
delay(8000);
#endif
#endif // HAS_LORA
} // verbose
dp_power(cfg.screenon); // set display off if disabled
} // dp_init
// write display content to display buffer
// nextpage = true -> flip 1 page
void dp_refresh(bool nextPage) {
struct count_payload_t count; // libpax count storage
static uint8_t DisplayPage = 0;
char timeState, strftime_buf[64];
time_t now;
struct tm timeinfo = {0};
#ifndef HAS_BUTTON
static uint32_t framecounter = 0;
const uint32_t flip_threshold = DISPLAYCYCLE * 1000 / DISPLAYREFRESH_MS;
#endif
// if display is switched off we don't refresh it to relax cpu
if (!DisplayIsOn && (DisplayIsOn == cfg.screenon))
return;
// set display on/off according to current device configuration
if (DisplayIsOn != cfg.screenon) {
DisplayIsOn = cfg.screenon;
dp_power(cfg.screenon);
}
#ifndef HAS_BUTTON
// auto flip page if we are in unattended mode
if (++framecounter > flip_threshold) {
framecounter = 0;
nextPage = true;
}
#endif
if (nextPage) {
DisplayPage = (DisplayPage >= DISPLAY_PAGES - 1) ? 0 : (DisplayPage + 1);
dp_clear();
} else
dp->setCursor(0, 0);
switch (DisplayPage) {
// page 0: pax + parameters overview
// page 1: pax + lorawan parameters
// page 2: pax + GPS lat/lon
// page 3: BME280/680 values
// page 4: timeofday
// page 5: pax graph
// page 6: blank screen
// ---------- page 0: parameters overview ----------
case 0:
// show pax
libpax_counter_count(&count);
dp_setFont(MY_FONT_LARGE);
dp->printf("%-8u", count.pax);
dp_setFont(MY_FONT_SMALL);
dp->setCursor(0, MY_DISPLAY_FIRSTLINE);
// line 3: wifi + bluetooth counters
// WIFI:abcde BLTH:abcde
if (cfg.wifiscan)
dp->printf("WIFI:%-5u", count.wifi_count);
else
dp->printf("WIFI:off ");
if (cfg.blescan)
dp->printf("BLTH:%-5u", count.ble_count);
else
dp->printf(" BLTH:off");
dp->printf("\r\n");
// line 4: Battery + GPS status + Wifi channel
// B:a.bcV Sats:ab ch:ab
#if (defined BAT_MEASURE_ADC || defined HAS_PMU || defined HAS_IP5306)
if (batt_level > 0)
dp->printf("Batt:%3u%% ", batt_level);
else
dp->printf("No batt ");
#else
dp->printf(" ");
#endif
dp->printf("chan:%02u\r\n", channel);
// line 5: RSSI limiter + free memory
// RLIM:abcd Mem:abcdKB
dp->printf(!cfg.rssilimit ? "RLIM:off " : "RLIM:%-4d", cfg.rssilimit);
dp->printf(" Mem:%uKB\r\n", getFreeRAM() / 1024);
// line 6: time + date
// Wed Jan 12 21:49:08 *
#if (TIME_SYNC_INTERVAL)
timeState = TimePulseTick ? ' ' : timeSetSymbols[timeSource];
time(&now);
localtime_r(&now, &timeinfo);
strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
dp->printf("%.20s", strftime_buf);
// display inverse timeState if clock controller is enabled
#if (defined HAS_DCF77) || (defined HAS_IF482)
dp_setFont(MY_FONT_SMALL, 1);
dp->printf("%c\r\n", timeState);
dp_setFont(MY_FONT_SMALL, 0);
#else
dp->printf("%c\r\n", timeState);
#endif
#endif // TIME_SYNC_INTERVAL
// line 7: LMIC status
// yyyyyyyyyyyyy xx SFab
#if (HAS_LORA)
// LMiC event display
dp->printf("%-16s ", lmic_event_msg);
// LORA datarate, display inverse if ADR disabled
dp_setFont(MY_FONT_SMALL, !cfg.adrmode);
dp->printf("%-4s", getSfName(updr2rps(LMIC.datarate)));
dp_setFont(MY_FONT_SMALL, 0);
#endif // HAS_LORA
dp_dump();
break;
// ---------- page 1: lorawan parameters ----------
case 1:
#if (HAS_LORA)
// 3|Net:000000 Pwr:aa
// 4|Dev:00000000 DR:0
// 5|CHMsk:0000 Nonce:0000
// 6|fUp:000000 fDn:000000
// 7|SNR:-0000 RSSI:-0000
// show pax
libpax_counter_count(&count);
dp_setFont(MY_FONT_LARGE);
dp->printf("%-8u", count.pax);
dp_setFont(MY_FONT_SMALL);
dp->setCursor(0, MY_DISPLAY_FIRSTLINE);
dp->printf("Net:%06X Pwr:%2u\r\n", LMIC.netid & 0x001FFFFF,
LMIC.radio_txpow);
dp->printf("Dev:%08X DR:%1u\r\n", LMIC.devaddr, LMIC.datarate);
dp->printf("ChMsk:%04X Nonce:%04X\r\n", LMIC.channelMap, LMIC.devNonce);
dp->printf("fUp:%-6u fDn:%-6u\r\n", LMIC.seqnoUp ? LMIC.seqnoUp - 1 : 0,
LMIC.seqnoDn ? LMIC.seqnoDn - 1 : 0);
dp->printf("SNR:%-5d RSSI:%-5d", (LMIC.snr + 2) / 4, LMIC.rssi);
dp_dump();
break;
#else // skip this page
DisplayPage++;
break;
#endif // HAS_LORA
// ---------- page 2: GPS ----------
case 2:
#if (HAS_GPS)
// show pax
libpax_counter_count(&count);
dp_setFont(MY_FONT_LARGE);
dp->printf("%-8u", count.pax);
// show satellite status at bottom line
dp_setFont(MY_FONT_SMALL);
dp->setCursor(0, 56);
dp->printf("%u Sats", gps.satellites.value());
dp->printf(gps_hasfix() ? " " : " - No fix");
// show latitude and longitude
dp_setFont(MY_FONT_STRETCHED);
dp->setCursor(0, MY_DISPLAY_FIRSTLINE);
dp->printf("%c%09.6f\r\n", gps.location.rawLat().negative ? 'S' : 'N',
gps.location.lat());
dp->printf("%c%09.6f", gps.location.rawLng().negative ? 'W' : 'E',
gps.location.lng());
dp_dump();
break;
#else // skip this page
DisplayPage++;
break;
#endif
// ---------- page 3: BME280/680 ----------
case 3:
#if (HAS_BME)
dp_setFont(MY_FONT_STRETCHED);
dp->setCursor(0, 0);
dp->printf("TMP %-6.1f\r\n", bme_status.temperature);
dp->printf("HUM %-6.1f\r\n", bme_status.humidity);
dp->printf("PRS %-6.1f\r\n", bme_status.pressure);
#ifdef HAS_BME680
dp->printf("IAQ %-6.0f", bme_status.iaq);
#endif
dp_dump();
break;
#else // skip this page
DisplayPage++;
break;
#endif // HAS_BME
// ---------- page 4: time ----------
case 4:
time(&now);
localtime_r(&now, &timeinfo);
dp_setFont(MY_FONT_STRETCHED);
dp->setCursor(0, 0);
dp->printf("Timeofday:");
dp->setCursor(0, 26);
dp_setFont(MY_FONT_LARGE);
strftime(strftime_buf, sizeof(strftime_buf), "%T", &timeinfo);
dp->printf("%.8s\r\n", strftime_buf);
dp_setFont(MY_FONT_SMALL);
dp->printf("%-12.1f", uptime() / 1000.0);
dp_dump();
break;
// ---------- page 5: pax graph ----------
case 5:
// update and show histogram
dp_plotCurve(count.pax, false);
dp_dump(plotbuf);
break;
// ---------- page 6: blank screen ----------
case 6:
#ifdef HAS_BUTTON
dp_clear();
break;
#else // skip this page
DisplayPage++;
break;
#endif
} // switch (page)
} // dp_refresh
// ------------- display helper functions -----------------
void dp_setFont(int font, int inv) {
dp->setFont(font);
if (inv)
dp->setTextColor(MY_DISPLAY_BGCOLOR, MY_DISPLAY_FGCOLOR);
else
dp->setTextColor(MY_DISPLAY_FGCOLOR, MY_DISPLAY_BGCOLOR);
}
void dp_dump(uint8_t *pBuffer) {
if (pBuffer)
memcpy(dp->getBuffer(), pBuffer, PLOTBUFFERSIZE);
dp->display();
}
void dp_clear(void) {
dp->fillScreen(MY_DISPLAY_BGCOLOR);
dp->display();
dp->setCursor(0, 0);
}
void dp_contrast(uint8_t contrast) {
#if (HAS_DISPLAY) == 1
dp->setContrast(contrast);
#elif (HAS_DISPLAY) > 1
// to do: gamma correction for TFT
#endif
}
void dp_power(uint8_t screenon) {
#if (HAS_DISPLAY) == 1
dp->setPower(screenon);
#elif (HAS_DISPLAY) > 1
// to come
#endif
}
void dp_shutdown(void) {
#if (HAS_DISPLAY) == 1
dp->setPower(false);
delay(DISPLAYREFRESH_MS / 1000 * 1.1);
#elif (HAS_DISPLAY) > 1
// to come
#endif
}
// ------------- QR code plotter -----------------
void dp_printqr(uint16_t offset_x, uint16_t offset_y, const char *Message) {
uint8_t qrcodeData[qrcode_getBufferSize(QR_VERSION)];
qrcode_initText(&qrcode, qrcodeData, QR_VERSION, ECC_HIGH, Message);
// draw QR code
for (uint8_t y = 0; y < qrcode.size; y++)
for (uint8_t x = 0; x < qrcode.size; x++)
if (!qrcode_getModule(&qrcode, x, y)) // "black"
dp->fillRect(x * QR_SCALEFACTOR + offset_x,
y * QR_SCALEFACTOR + offset_y, QR_SCALEFACTOR,
QR_SCALEFACTOR, MY_DISPLAY_FGCOLOR);
// draw horizontal frame lines
dp->fillRect(0, 0, qrcode.size * QR_SCALEFACTOR + 2 * offset_x, offset_y,
MY_DISPLAY_FGCOLOR);
dp->fillRect(0, qrcode.size * QR_SCALEFACTOR + offset_y,
qrcode.size * QR_SCALEFACTOR + 2 * offset_x, offset_y,
MY_DISPLAY_FGCOLOR);
// draw vertical frame lines
dp->fillRect(0, 0, offset_x, qrcode.size * QR_SCALEFACTOR + 2 * offset_y,
MY_DISPLAY_FGCOLOR);
dp->fillRect(qrcode.size * QR_SCALEFACTOR + offset_x, 0, offset_x,
qrcode.size * QR_SCALEFACTOR + 2 * offset_y, MY_DISPLAY_FGCOLOR);
}
// ------------- graphics primitives -----------------
int dp_drawPixel(uint8_t *buf, const uint16_t x, const uint16_t y,
const uint8_t dot) {
if (x > MY_DISPLAY_WIDTH || y > MY_DISPLAY_HEIGHT)
return -1;
uint8_t bit = y & 7;
uint16_t idx = y / 8 * MY_DISPLAY_WIDTH + x;
buf[idx] &= ~(1 << bit); // clear pixel
if (dot)
buf[idx] |= (1 << bit); // set pixel
return 0;
}
// ------------- buffer scroll functions -----------------
void dp_scrollHorizontal(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 dp_scrollVertical(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 < MY_DISPLAY_WIDTH; col++) {
// convert column bytes from display buffer to uint64_t
buf_col = *(uint64_t *)&buf[col * MY_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 * MY_DISPLAY_HEIGHT / 8] = buf_col;
}
}
// ------------- curve plotter -----------------
void dp_plotCurve(uint16_t count, bool reset) {
static uint16_t last_count = 0, col = 0, row = 0;
uint16_t v_scroll = 0;
// nothing new to plot? -> then exit early
if ((last_count == count) && !reset)
return;
if (reset) { // next count cycle?
if (col < MY_DISPLAY_WIDTH - 1) // matrix not full -> increment column
col++;
else // matrix full -> scroll left 1 dot
dp_scrollHorizontal(plotbuf, MY_DISPLAY_WIDTH, MY_DISPLAY_HEIGHT, true);
} else // clear current dot
dp_drawPixel(plotbuf, col, row, 0);
// scroll down, if necessary
while ((count - v_scroll) > MY_DISPLAY_HEIGHT - 1)
v_scroll++;
if (v_scroll)
dp_scrollVertical(plotbuf, MY_DISPLAY_WIDTH, MY_DISPLAY_HEIGHT, v_scroll);
// set new dot
// row = MY_DISPLAY_HEIGHT - 1 - (count - v_scroll) % MY_DISPLAY_HEIGHT;
row = MY_DISPLAY_HEIGHT - 1 - count - v_scroll;
last_count = count;
dp_drawPixel(plotbuf, col, row, 1);
}
#endif // HAS_DISPLAY
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