Files
meshtastic_firmware/src/detect/einkScan.h
T
JorropoandGitHub beb268ff25 Revert "add a .clang-format file (#9154)" (#9172)
I thought git would be smart enough to understand all the whitespace changes but even with all the flags I know to make it ignore theses it still blows up if there are identical changes on both sides.

I have a solution but it require creating a new commit at the merge base for each conflicting PR and merging it into develop.

I don't think blowing up all PRs is worth for now, maybe if we can coordinate this for V3 let's say.

This reverts commit 0d11331d18.
2026-01-04 05:15:53 -06:00

67 lines
1.7 KiB
C

#include "../configuration.h"
#ifdef RAK_4631
#include "../main.h"
#include <SPI.h>
void d_writeCommand(uint8_t c)
{
SPI1.beginTransaction(SPISettings(4000000, MSBFIRST, SPI_MODE0));
if (PIN_EINK_DC >= 0)
digitalWrite(PIN_EINK_DC, LOW);
if (PIN_EINK_CS >= 0)
digitalWrite(PIN_EINK_CS, LOW);
SPI1.transfer(c);
if (PIN_EINK_CS >= 0)
digitalWrite(PIN_EINK_CS, HIGH);
if (PIN_EINK_DC >= 0)
digitalWrite(PIN_EINK_DC, HIGH);
SPI1.endTransaction();
}
void d_writeData(uint8_t d)
{
SPI1.beginTransaction(SPISettings(4000000, MSBFIRST, SPI_MODE0));
if (PIN_EINK_CS >= 0)
digitalWrite(PIN_EINK_CS, LOW);
SPI1.transfer(d);
if (PIN_EINK_CS >= 0)
digitalWrite(PIN_EINK_CS, HIGH);
SPI1.endTransaction();
}
unsigned long d_waitWhileBusy(uint16_t busy_time)
{
if (PIN_EINK_BUSY >= 0) {
delay(1); // add some margin to become active
unsigned long start = micros();
while (1) {
if (digitalRead(PIN_EINK_BUSY) != HIGH)
break;
delay(1);
if (digitalRead(PIN_EINK_BUSY) != HIGH)
break;
if (micros() - start > 10000000)
break;
}
unsigned long elapsed = micros() - start;
(void)start;
return elapsed;
} else
return busy_time;
}
void scanEInkDevice(void)
{
SPI1.begin();
d_writeCommand(0x22);
d_writeData(0x83);
d_writeCommand(0x20);
eink_found = (d_waitWhileBusy(150) > 0) ? true : false;
if (eink_found)
LOG_DEBUG("EInk display found");
else
LOG_DEBUG("EInk display not found");
SPI1.end();
}
#endif