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RNode_Firmware/Display.h

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// Copyright (C) 2023, Mark Qvist
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
#include "Graphics.h"
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define DISP_W 128
#define DISP_H 64
#if BOARD_MODEL == BOARD_RNODE_NG_20 || BOARD_MODEL == BOARD_LORA32_V2_0
#define DISP_RST -1
#define DISP_ADDR 0x3C
#elif BOARD_MODEL == BOARD_TBEAM
#define DISP_RST 13
#define DISP_ADDR 0x3D
// #define DISP_ADDR 0x3C
#elif BOARD_MODEL == BOARD_HELTEC32_V2
#define DISP_RST 16
#define DISP_ADDR 0x3C
#define SCL_OLED 15
#define SDA_OLED 4
#else
#define DISP_RST -1
#define DISP_ADDR 0x3C
#endif
Adafruit_SSD1306 display(DISP_W, DISP_H, &Wire, DISP_RST);
#define DISP_MODE_UNKNOWN 0x00
#define DISP_MODE_LANDSCAPE 0x01
#define DISP_MODE_PORTRAIT 0x02
#define DISP_PIN_SIZE 6
uint8_t disp_mode = DISP_MODE_UNKNOWN;
uint8_t disp_ext_fb = false;
unsigned char fb[512];
uint32_t last_disp_update = 0;
uint8_t disp_target_fps = 7;
int disp_update_interval = 1000/disp_target_fps;
uint32_t last_page_flip = 0;
int page_interval = 4000;
bool device_signatures_ok();
bool device_firmware_ok();
#define WATERFALL_SIZE 46
int waterfall[WATERFALL_SIZE];
int waterfall_head = 0;
int p_ad_x = 0;
int p_ad_y = 0;
int p_as_x = 0;
int p_as_y = 0;
GFXcanvas1 stat_area(64, 64);
GFXcanvas1 disp_area(64, 64);
void update_area_positions() {
if (disp_mode == DISP_MODE_PORTRAIT) {
p_ad_x = 0;
p_ad_y = 0;
p_as_x = 0;
p_as_y = 64;
} else if (disp_mode == DISP_MODE_LANDSCAPE) {
p_ad_x = 0;
p_ad_y = 0;
p_as_x = 64;
p_as_y = 0;
}
}
uint8_t display_contrast = 0x00;
void set_contrast(Adafruit_SSD1306 *display, uint8_t contrast) {
display->ssd1306_command(SSD1306_SETCONTRAST);
display->ssd1306_command(contrast);
}
bool display_init() {
#if HAS_DISPLAY
#if BOARD_MODEL == BOARD_RNODE_NG_20 || BOARD_MODEL == BOARD_LORA32_V2_0
int pin_display_en = 16;
digitalWrite(pin_display_en, LOW);
delay(50);
digitalWrite(pin_display_en, HIGH);
#elif BOARD_MODEL == BOARD_HELTEC32_V2
Wire.begin(SDA_OLED, SCL_OLED);
#endif
if(!display.begin(SSD1306_SWITCHCAPVCC, DISP_ADDR)) {
return false;
} else {
set_contrast(&display, display_contrast);
#if BOARD_MODEL == BOARD_RNODE_NG_20
disp_mode = DISP_MODE_PORTRAIT;
display.setRotation(3);
#elif BOARD_MODEL == BOARD_RNODE_NG_21
disp_mode = DISP_MODE_PORTRAIT;
display.setRotation(3);
#elif BOARD_MODEL == BOARD_LORA32_V2_0
disp_mode = DISP_MODE_PORTRAIT;
display.setRotation(3);
#elif BOARD_MODEL == BOARD_LORA32_V2_1
disp_mode = DISP_MODE_LANDSCAPE;
display.setRotation(0);
#elif BOARD_MODEL == BOARD_TBEAM
disp_mode = DISP_MODE_LANDSCAPE;
display.setRotation(0);
#elif BOARD_MODEL == BOARD_HELTEC32_V2
disp_mode = DISP_MODE_PORTRAIT;
display.setRotation(1);
#else
disp_mode = DISP_MODE_PORTRAIT;
display.setRotation(3);
#endif
update_area_positions();
for (int i = 0; i < WATERFALL_SIZE; i++) {
waterfall[i] = 0;
}
last_page_flip = millis();
stat_area.cp437(true);
disp_area.cp437(true);
display.cp437(true);
return true;
}
#else
return false;
#endif
}
void draw_cable_icon(int px, int py) {
if (cable_state == CABLE_STATE_DISCONNECTED) {
stat_area.drawBitmap(px, py, bm_cable+0*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
} else if (cable_state == CABLE_STATE_CONNECTED) {
stat_area.drawBitmap(px, py, bm_cable+1*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
}
}
void draw_bt_icon(int px, int py) {
if (bt_state == BT_STATE_OFF) {
stat_area.drawBitmap(px, py, bm_bt+0*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
} else if (bt_state == BT_STATE_ON) {
stat_area.drawBitmap(px, py, bm_bt+1*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
} else if (bt_state == BT_STATE_PAIRING) {
stat_area.drawBitmap(px, py, bm_bt+2*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
} else if (bt_state == BT_STATE_CONNECTED) {
stat_area.drawBitmap(px, py, bm_bt+3*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
} else {
stat_area.drawBitmap(px, py, bm_bt+0*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
}
}
void draw_lora_icon(int px, int py) {
if (radio_online) {
stat_area.drawBitmap(px, py, bm_rf+1*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
} else {
stat_area.drawBitmap(px, py, bm_rf+0*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
}
}
void draw_mw_icon(int px, int py) {
if (mw_radio_online) {
stat_area.drawBitmap(px, py, bm_rf+3*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
} else {
stat_area.drawBitmap(px, py, bm_rf+2*32, 16, 16, SSD1306_WHITE, SSD1306_BLACK);
}
}
uint8_t charge_tick = 0;
void draw_battery_bars(int px, int py) {
if (pmu_ready) {
if (battery_ready) {
if (battery_installed) {
float battery_value = battery_percent;
if (battery_state == BATTERY_STATE_CHARGING) {
battery_value = charge_tick;
charge_tick += 3;
if (charge_tick > 100) charge_tick = 0;
}
if (battery_indeterminate && battery_state == BATTERY_STATE_CHARGING) {
stat_area.fillRect(px-2, py-2, 18, 7, SSD1306_BLACK);
stat_area.drawBitmap(px-2, py-2, bm_plug, 17, 7, SSD1306_WHITE, SSD1306_BLACK);
} else {
if (battery_state == BATTERY_STATE_CHARGED) {
stat_area.fillRect(px-2, py-2, 18, 7, SSD1306_BLACK);
stat_area.drawBitmap(px-2, py-2, bm_plug, 17, 7, SSD1306_WHITE, SSD1306_BLACK);
} else {
// stat_area.fillRect(px, py, 14, 3, SSD1306_BLACK);
stat_area.fillRect(px-2, py-2, 18, 7, SSD1306_BLACK);
stat_area.drawRect(px-2, py-2, 17, 7, SSD1306_WHITE);
stat_area.drawLine(px+15, py, px+15, py+3, SSD1306_WHITE);
if (battery_value > 7) stat_area.drawLine(px, py, px, py+2, SSD1306_WHITE);
if (battery_value > 20) stat_area.drawLine(px+1*2, py, px+1*2, py+2, SSD1306_WHITE);
if (battery_value > 33) stat_area.drawLine(px+2*2, py, px+2*2, py+2, SSD1306_WHITE);
if (battery_value > 46) stat_area.drawLine(px+3*2, py, px+3*2, py+2, SSD1306_WHITE);
if (battery_value > 59) stat_area.drawLine(px+4*2, py, px+4*2, py+2, SSD1306_WHITE);
if (battery_value > 72) stat_area.drawLine(px+5*2, py, px+5*2, py+2, SSD1306_WHITE);
if (battery_value > 85) stat_area.drawLine(px+6*2, py, px+6*2, py+2, SSD1306_WHITE);
}
}
} else {
stat_area.fillRect(px-2, py-2, 18, 7, SSD1306_BLACK);
stat_area.drawBitmap(px-2, py-2, bm_plug, 17, 7, SSD1306_WHITE, SSD1306_BLACK);
}
}
} else {
stat_area.fillRect(px-2, py-2, 18, 7, SSD1306_BLACK);
stat_area.drawBitmap(px-2, py-2, bm_plug, 17, 7, SSD1306_WHITE, SSD1306_BLACK);
}
}
#define Q_SNR_MIN -10.0
#define Q_SNR_MAX 8.0
#define Q_SNR_SPAN (Q_SNR_MAX-Q_SNR_MIN)
void draw_quality_bars(int px, int py) {
signed char t_snr = (signed int)last_snr_raw;
int snr_int = (int)t_snr;
float snr = ((int)snr_int) * 0.25;
float quality = ((snr-Q_SNR_MIN)/(Q_SNR_SPAN))*100;
if (quality > 100.0) quality = 100.0;
stat_area.fillRect(px, py, 13, 7, SSD1306_BLACK);
// Serial.printf("Last SNR: %.2f\n, quality: %.2f\n", snr, quality);
if (quality > 7) stat_area.drawLine(px+0*2, py+7, px+0*2, py+6, SSD1306_WHITE);
if (quality > 20) stat_area.drawLine(px+1*2, py+7, px+1*2, py+5, SSD1306_WHITE);
if (quality > 33) stat_area.drawLine(px+2*2, py+7, px+2*2, py+4, SSD1306_WHITE);
if (quality > 46) stat_area.drawLine(px+3*2, py+7, px+3*2, py+3, SSD1306_WHITE);
if (quality > 59) stat_area.drawLine(px+4*2, py+7, px+4*2, py+2, SSD1306_WHITE);
if (quality > 72) stat_area.drawLine(px+5*2, py+7, px+5*2, py+1, SSD1306_WHITE);
if (quality > 85) stat_area.drawLine(px+6*2, py+7, px+6*2, py+0, SSD1306_WHITE);
}
#define S_RSSI_MIN -135.0
#define S_RSSI_MAX -60.0
#define S_RSSI_SPAN (S_RSSI_MAX-S_RSSI_MIN)
void draw_signal_bars(int px, int py) {
int rssi_val = last_rssi;
if (rssi_val < S_RSSI_MIN) rssi_val = S_RSSI_MIN;
if (rssi_val > S_RSSI_MAX) rssi_val = S_RSSI_MAX;
int signal = ((rssi_val - S_RSSI_MIN)*(1.0/S_RSSI_SPAN))*100.0;
if (signal > 100.0) signal = 100.0;
stat_area.fillRect(px, py, 13, 7, SSD1306_BLACK);
// Serial.printf("Last SNR: %.2f\n, quality: %.2f\n", snr, quality);
if (signal > 85) stat_area.drawLine(px+0*2, py+7, px+0*2, py+0, SSD1306_WHITE);
if (signal > 72) stat_area.drawLine(px+1*2, py+7, px+1*2, py+1, SSD1306_WHITE);
if (signal > 59) stat_area.drawLine(px+2*2, py+7, px+2*2, py+2, SSD1306_WHITE);
if (signal > 46) stat_area.drawLine(px+3*2, py+7, px+3*2, py+3, SSD1306_WHITE);
if (signal > 33) stat_area.drawLine(px+4*2, py+7, px+4*2, py+4, SSD1306_WHITE);
if (signal > 20) stat_area.drawLine(px+5*2, py+7, px+5*2, py+5, SSD1306_WHITE);
if (signal > 7) stat_area.drawLine(px+6*2, py+7, px+6*2, py+6, SSD1306_WHITE);
}
#define WF_RSSI_MAX -60
#define WF_RSSI_MIN -135
#define WF_RSSI_SPAN (WF_RSSI_MAX-WF_RSSI_MIN)
#define WF_PIXEL_WIDTH 10
void draw_waterfall(int px, int py) {
int rssi_val = current_rssi;
if (rssi_val < WF_RSSI_MIN) rssi_val = WF_RSSI_MIN;
if (rssi_val > WF_RSSI_MAX) rssi_val = WF_RSSI_MAX;
int rssi_normalised = ((rssi_val - WF_RSSI_MIN)*(1.0/WF_RSSI_SPAN))*WF_PIXEL_WIDTH;
waterfall[waterfall_head++] = rssi_normalised;
if (waterfall_head >= WATERFALL_SIZE) waterfall_head = 0;
stat_area.fillRect(px,py,WF_PIXEL_WIDTH, WATERFALL_SIZE, SSD1306_BLACK);
for (int i = 0; i < WATERFALL_SIZE; i++){
int wi = (waterfall_head+i)%WATERFALL_SIZE;
int ws = waterfall[wi];
if (ws > 0) {
stat_area.drawLine(px, py+i, px+ws-1, py+i, SSD1306_WHITE);
}
}
}
bool stat_area_intialised = false;
void draw_stat_area() {
if (device_init_done) {
if (!stat_area_intialised) {
stat_area.drawBitmap(0, 0, bm_frame, 64, 64, SSD1306_WHITE, SSD1306_BLACK);
stat_area_intialised = true;
}
draw_cable_icon(3, 8);
draw_bt_icon(3, 30);
draw_lora_icon(45, 8);
draw_mw_icon(45, 30);
draw_battery_bars(4, 58);
if (radio_online) {
draw_quality_bars(28, 56);
draw_signal_bars(44, 56);
draw_waterfall(27, 4);
}
}
}
void update_stat_area() {
if (eeprom_ok && !firmware_update_mode && !console_active) {
draw_stat_area();
if (disp_mode == DISP_MODE_PORTRAIT) {
display.drawBitmap(p_as_x, p_as_y, stat_area.getBuffer(), stat_area.width(), stat_area.height(), SSD1306_WHITE, SSD1306_BLACK);
} else if (disp_mode == DISP_MODE_LANDSCAPE) {
display.drawBitmap(p_as_x+2, p_as_y, stat_area.getBuffer(), stat_area.width(), stat_area.height(), SSD1306_WHITE, SSD1306_BLACK);
if (device_init_done && !disp_ext_fb) display.drawLine(p_as_x, 0, p_as_x, 64, SSD1306_WHITE);
}
} else {
if (firmware_update_mode) {
display.drawBitmap(p_as_x, p_as_y, bm_updating, stat_area.width(), stat_area.height(), SSD1306_BLACK, SSD1306_WHITE);
} else if (console_active && device_init_done) {
display.drawBitmap(p_as_x, p_as_y, bm_console, stat_area.width(), stat_area.height(), SSD1306_BLACK, SSD1306_WHITE);
if (disp_mode == DISP_MODE_LANDSCAPE) {
display.drawLine(p_as_x, 0, p_as_x, 64, SSD1306_WHITE);
}
}
}
}
#define START_PAGE 0
const uint8_t pages = 3;
uint8_t disp_page = START_PAGE;
void draw_disp_area() {
if (!device_init_done || firmware_update_mode) {
uint8_t p_by = 37;
if (disp_mode == DISP_MODE_LANDSCAPE || firmware_update_mode) {
p_by = 18;
disp_area.fillRect(0, 0, disp_area.width(), disp_area.height(), SSD1306_BLACK);
}
if (!device_init_done) disp_area.drawBitmap(0, p_by, bm_boot, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
if (firmware_update_mode) disp_area.drawBitmap(0, p_by, bm_fw_update, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
} else {
if (!disp_ext_fb or bt_ssp_pin != 0) {
if (device_signatures_ok()) {
disp_area.drawBitmap(0, 0, bm_def_lc, disp_area.width(), 37, SSD1306_WHITE, SSD1306_BLACK);
} else {
disp_area.drawBitmap(0, 0, bm_def, disp_area.width(), 37, SSD1306_WHITE, SSD1306_BLACK);
}
if (!hw_ready || radio_error || !device_firmware_ok()) {
if (!device_firmware_ok()) {
disp_area.drawBitmap(0, 37, bm_fw_corrupt, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
} else {
if (!sx1276_installed) {
disp_area.drawBitmap(0, 37, bm_no_radio, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
} else {
disp_area.drawBitmap(0, 37, bm_hwfail, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
}
}
} else if (bt_state == BT_STATE_PAIRING and bt_ssp_pin != 0) {
char *pin_str = (char*)malloc(DISP_PIN_SIZE+1);
sprintf(pin_str, "%06d", bt_ssp_pin);
disp_area.drawBitmap(0, 37, bm_pairing, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
for (int i = 0; i < DISP_PIN_SIZE; i++) {
uint8_t numeric = pin_str[i]-48;
uint8_t offset = numeric*5;
disp_area.drawBitmap(7+9*i, 37+16, bm_n_uh+offset, 8, 5, SSD1306_WHITE, SSD1306_BLACK);
}
free(pin_str);
} else {
if (millis()-last_page_flip >= page_interval) {
disp_page = (++disp_page%pages);
last_page_flip = millis();
if (not community_fw and disp_page == 0) disp_page = 1;
}
if (disp_page == 0) {
if (device_signatures_ok()) {
if (radio_online) {
disp_area.drawBitmap(0, 37, bm_online, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
} else {
disp_area.drawBitmap(0, 37, bm_checks, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
}
} else {
disp_area.drawBitmap(0, 37, bm_nfr, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
}
} else if (disp_page == 1) {
if (radio_online) {
disp_area.drawBitmap(0, 37, bm_online, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
} else{
if (!console_active) {
disp_area.drawBitmap(0, 37, bm_hwok, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
} else {
disp_area.drawBitmap(0, 37, bm_console_active, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
}
}
} else if (disp_page == 2) {
if (radio_online) {
disp_area.drawBitmap(0, 37, bm_online, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
} else{
disp_area.drawBitmap(0, 37, bm_version, disp_area.width(), 27, SSD1306_WHITE, SSD1306_BLACK);
char *v_str = (char*)malloc(3+1);
sprintf(v_str, "%01d%02d", MAJ_VERS, MIN_VERS);
for (int i = 0; i < 3; i++) {
uint8_t numeric = v_str[i]-48; uint8_t bm_offset = numeric*5;
uint8_t dxp = 20;
if (i == 1) dxp += 9*1+4;
if (i == 2) dxp += 9*2+4;
disp_area.drawBitmap(dxp, 37+16, bm_n_uh+bm_offset, 8, 5, SSD1306_WHITE, SSD1306_BLACK);
}
free(v_str);
disp_area.drawLine(27, 37+19, 28, 37+19, SSD1306_BLACK);
disp_area.drawLine(27, 37+20, 28, 37+20, SSD1306_BLACK);
}
}
}
} else {
disp_area.drawBitmap(0, 0, fb, disp_area.width(), disp_area.height(), SSD1306_WHITE, SSD1306_BLACK);
}
}
}
void update_disp_area() {
draw_disp_area();
display.drawBitmap(p_ad_x, p_ad_y, disp_area.getBuffer(), disp_area.width(), disp_area.height(), SSD1306_WHITE, SSD1306_BLACK);
if (disp_mode == DISP_MODE_LANDSCAPE) {
if (device_init_done && !firmware_update_mode && !disp_ext_fb) {
display.drawLine(0, 0, 0, 63, SSD1306_WHITE);
}
}
}
void update_display() {
if (millis()-last_disp_update >= disp_update_interval) {
if (display_contrast != display_intensity) {
display_contrast = display_intensity;
set_contrast(&display, display_contrast);
}
display.clearDisplay();
update_stat_area();
update_disp_area();
display.display();
last_disp_update = millis();
}
}
void ext_fb_enable() {
disp_ext_fb = true;
}
void ext_fb_disable() {
disp_ext_fb = false;
}
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