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#include <hal/nrf_gpio.h>
#include <libraries/delay/nrf_delay.h>
#include "St7789.h"
#include "SpiMaster.h"
using namespace Pinetime::Drivers;
St7789::St7789(SpiMaster &spiMaster, uint8_t pinDataCommand) : spi{spiMaster}, pinDataCommand{pinDataCommand} {
}
void St7789::Init() {
nrf_gpio_cfg_output(pinDataCommand);
SoftwareReset();
SleepOut();
ColMod();
MemoryDataAccessControl();
ColumnAddressSet();
RowAddressSet();
DisplayInversionOn();
NormalModeOn();
DisplayOn();
}
void St7789::WriteCommand(uint8_t cmd) {
nrf_gpio_pin_clear(pinDataCommand);
WriteSpi(&cmd, 1);
}
void St7789::WriteData(uint8_t data) {
nrf_gpio_pin_set(pinDataCommand);
WriteSpi(&data, 1);
}
void St7789::WriteSpi(const uint8_t* data, size_t size) {
spi.Write(data, size);
}
void St7789::SoftwareReset() {
WriteCommand(static_cast<uint8_t>(Commands::SoftwareReset));
nrf_delay_ms(150);
}
void St7789::SleepOut() {
WriteCommand(static_cast<uint8_t>(Commands::SleepOut));
nrf_delay_ms(500);
}
void St7789::ColMod() {
WriteCommand(static_cast<uint8_t>(Commands::ColMod));
WriteData(0x55);
nrf_delay_ms(10);
}
void St7789::MemoryDataAccessControl() {
WriteCommand(static_cast<uint8_t>(Commands::MemoryDataAccessControl));
WriteData(0x00);
}
void St7789::ColumnAddressSet() {
WriteCommand(static_cast<uint8_t>(Commands::ColumnAddressSet));
WriteData(0x00);
WriteData(0x00);
WriteData(Height >> 8);
WriteData(Height & 0xff);
}
void St7789::RowAddressSet() {
WriteCommand(static_cast<uint8_t>(Commands::RowAddressSet));
WriteData(0x00);
WriteData(0x00);
WriteData(Width >> 8);
WriteData(Width & 0xff);
}
void St7789::DisplayInversionOn() {
WriteCommand(static_cast<uint8_t>(Commands::DisplayInversionOn));
nrf_delay_ms(10);
}
void St7789::NormalModeOn() {
WriteCommand(static_cast<uint8_t>(Commands::NormalModeOn));
nrf_delay_ms(10);
}
void St7789::DisplayOn() {
WriteCommand(static_cast<uint8_t>(Commands::DisplayOn));
nrf_delay_ms(500);
}
void St7789::FillRectangle(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t color) {
// rudimentary clipping (drawChar w/big text requires this)
if((x >= Width) || (y >= Height)) return;
if((x + width - 1) >= Width) width = Width - x;
if((y + height - 1) >= Height) height = Height - y;
SetAddrWindow(0+x, ST7789_ROW_OFFSET+y, x+width-1, y+height-1);
uint8_t hi = color >> 8, lo = color;
uint32_t c = color + (color << 16);
nrf_gpio_pin_set(pinDataCommand);
for(y=height+ST7789_ROW_OFFSET; y>ST7789_ROW_OFFSET; y--) {
for(x=width; x>0; x--) {
WriteSpi(reinterpret_cast<const uint8_t *>(&c), 4);
}
}
}
void St7789::SetAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
WriteCommand(static_cast<uint8_t>(Commands::ColumnAddressSet));
WriteData(x0 >> 8);
WriteData(x0 & 0xff);
WriteData(x1 >> 8);
WriteData(x1 & 0xff);
WriteCommand(static_cast<uint8_t>(Commands::RowAddressSet));
WriteData(y0>>8);
WriteData(y0 & 0xff);
WriteData(y1 >> 8);
WriteData(y1 & 0xff);
WriteToRam();
}
void St7789::WriteToRam() {
WriteCommand(static_cast<uint8_t>(Commands::WriteToRam));
}
void St7789::DisplayOff() {
WriteCommand(static_cast<uint8_t>(Commands::DisplayOff));
nrf_delay_ms(500);
}
void St7789::Uninit() {
}
void St7789::DrawPixel(uint16_t x, uint16_t y, uint32_t color) {
if((x < 0) ||(x >= Width) || (y < 0) || (y >= Height)) return;
SetAddrWindow(x, y, x+1, y+1);
nrf_gpio_pin_set(pinDataCommand);
WriteSpi(reinterpret_cast<const uint8_t *>(&color), 2);
}
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