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Add screen detection function #5533

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Add screen detection function #5533

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77 changes: 77 additions & 0 deletions src/mesh/NodeDB.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,76 @@ static unsigned char userprefs_admin_key_1[] = USERPREFS_USE_ADMIN_KEY_1;
static unsigned char userprefs_admin_key_2[] = USERPREFS_USE_ADMIN_KEY_2;
#endif

#ifdef HELTEC_MESH_NODE_T114

uint32_t read8(uint8_t bits, uint8_t dummy,uint8_t cs,uint8_t sck,uint8_t mosi,uint8_t dc,uint8_t rst)
{
uint32_t ret = 0;
uint8_t SDAPIN = mosi;
pinMode(SDAPIN, INPUT_PULLUP);
digitalWrite(dc, HIGH);
for (int i = 0; i < dummy; i++) { //any dummy clocks
digitalWrite(sck, HIGH);
delay(1);
digitalWrite(sck, LOW);
delay(1);
}
for (int i = 0; i < bits; i++) { // read results
ret <<= 1;
delay(1);
if (digitalRead(SDAPIN)) ret |= 1;;
digitalWrite(sck, HIGH);
delay(1);
digitalWrite(sck, LOW);
}
return ret;
}

void write9(uint8_t val, uint8_t dc_val,uint8_t cs,uint8_t sck,uint8_t mosi,uint8_t dc,uint8_t rst)
{
pinMode(mosi, OUTPUT);
digitalWrite(dc, dc_val);
for (int i = 0; i < 8; i++) { //send command
digitalWrite(mosi, (val & 0x80) != 0);
delay(1);
digitalWrite(sck, HIGH);
delay(1);
digitalWrite(sck, LOW);
val <<= 1;
}
}

uint32_t readwrite8(uint8_t cmd, uint8_t bits, uint8_t dummy,uint8_t cs,uint8_t sck,uint8_t mosi,uint8_t dc,uint8_t rst)
{
digitalWrite(cs, LOW);
write9(cmd, 0,cs,sck,mosi,dc,rst);
uint32_t ret = read8(bits, dummy,cs,sck,mosi,dc,rst);
digitalWrite(cs, HIGH);
return ret;
}

uint32_t get_st7789_id(uint8_t cs,uint8_t sck,uint8_t mosi,uint8_t dc,uint8_t rst)
{
pinMode(cs, OUTPUT);
digitalWrite(cs, HIGH);
pinMode(cs, OUTPUT);
pinMode(sck, OUTPUT);
pinMode(mosi, OUTPUT);
pinMode(dc, OUTPUT);
pinMode(rst, OUTPUT);
digitalWrite(rst, LOW); //Hardware Reset
delay(10);
digitalWrite(rst, HIGH);
delay(10);

uint32_t ID = 0;
ID = readwrite8(0x04, 24, 1,cs,sck,mosi,dc,rst);
ID = readwrite8(0x04, 24, 1,cs,sck,mosi,dc,rst); //ST7789 needs twice
return ID;
}

#endif

bool meshtastic_DeviceState_callback(pb_istream_t *istream, pb_ostream_t *ostream, const pb_field_iter_t *field)
{
if (ostream) {
Expand Down Expand Up @@ -489,6 +559,13 @@ void NodeDB::installDefaultConfig(bool preserveKey = false)
#if defined(ST7735_CS) || defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ILI9342_DRIVER) || defined(ST7789_CS) || \
defined(HX8357_CS) || defined(USE_ST7789)
bool hasScreen = true;
#ifdef HELTEC_MESH_NODE_T114
uint32_t st7789_id=get_st7789_id(ST7789_NSS,ST7789_SCK,ST7789_SDA,ST7789_RS,ST7789_RESET);
if(st7789_id==0xFFFFFF)
{
hasScreen = false;
}
#endif
#elif ARCH_PORTDUINO
bool hasScreen = false;
if (settingsMap[displayPanel])
Expand Down
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