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SSD1680: Add support for variable update speed.

driver/ssd1680
Phil Howard 2025-05-15 14:39:57 +01:00
rodzic dfe9c4dce8
commit ae4bc4a1e1
2 zmienionych plików z 41 dodań i 23 usunięć
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59
drivers/ssd1680/ssd1680.cpp
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@ -49,37 +49,48 @@ namespace pimoroni {
busy_wait();
}
void SSD1680::default_luts() {
bool SSD1680::set_update_speed(int update_speed) {
// 0 == slow (lut_repeat_count of 3), 3 == fast (lut_repeat_count of 0)
this->lut_repeat_count = (uint8_t)3 - (uint8_t)(update_speed & 3);
write_luts();
return true;
}
void SSD1680::write_luts() {
command(WLR, {
// Group:
// 0 1 2 3 4 5 6 7 8 9 10 11
0x40, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // VS L0
0xA0, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // VS L1
0xA8, 0x65, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // VS L2
0xAA, 0x65, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // VS L3
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // VS L4
0x40, 0x68, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // VS L0
0xA0, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // VS L1
0xA8, 0x65, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // VS L2
0xAA, 0x65, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // VS L3
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // VS L4
});
// Phase:
// L0 L1 L2 L3 L4 SR? RP
0x02, 0x00, 0x00, 0x05, 0x0A, 0x00, 0x01, // Group0
0x19, 0x19, 0x00, 0x02, 0x00, 0x00, 0x01, // Group1
0x05, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x01, // Group2
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group3
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group4
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group5
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group6
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group7
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group8
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group9
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group10
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group11
// L0 L1 L2 L3 L4 SR? Repeat
data({0x02, 0x00, 0x00, 0x05, 0x0A, 0x00}); data(1, &this->lut_repeat_count); // Group0
data({0x19, 0x19, 0x00, 0x02, 0x00, 0x00}); data(1, &this->lut_repeat_count); // Group1
data({0x05, 0x0A, 0x00, 0x00, 0x00, 0x00}); data(1, &this->lut_repeat_count); // Group2
// Remaining unused LUTs and config values
data({
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group3
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group4
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group5
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group6
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group7
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group8
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group9
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group10
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Group11
// Config:
0x44, 0x42, 0x22, 0x22, 0x23, 0x32, 0x00, 0x00, 0x00 // FR, XON
0x44, 0x42, 0x22, 0x22, 0x23, 0x32, 0x00, 0x00, 0x00 // FR, XON
});
command(EOPT, {0x22});
command(GDVC, {0x17});
command(SDVC, {0x41, 0xAE, 0x32});
command(SDVC, {0x41, 0xAE, 0x32});
command(WVCOM, {0x28});
busy_wait();
@ -113,7 +124,7 @@ namespace pimoroni {
setup();
default_luts();
write_luts();
};
@ -208,6 +219,10 @@ namespace pimoroni {
gpio_put(CS, 1);
}
void SSD1680::data(std::initializer_list<uint8_t> values) {
data(values.size(), (uint8_t *)values.begin());
}
void SSD1680::command(uint8_t reg, std::initializer_list<uint8_t> values) {
command(reg, values.size(), (uint8_t *)values.begin());
}

5
drivers/ssd1680/ssd1680.hpp
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@ -36,6 +36,7 @@ namespace pimoroni {
uint BUSY = 9;
uint RESET = 21;
uint8_t lut_repeat_count = 1; // Default to 1 for a ghost-free but slightly slower refresh
bool inverted = true; // Makes 0 black and 1 white, as is foretold.
bool blocking = true;
@ -61,9 +62,10 @@ namespace pimoroni {
void power_off() override;
void update(PicoGraphics *graphics) override;
void partial_update(PicoGraphics *graphics, Rect region) override;
bool set_update_speed(int update_speed) override;
// SSD1680 Specific
void default_luts();
void write_luts();
private:
void init();
@ -74,6 +76,7 @@ namespace pimoroni {
void command(uint8_t reg, std::initializer_list<uint8_t> values);
void command(uint8_t reg) {command(reg, 0, nullptr);};
void data(size_t len, const uint8_t *data);
void data(std::initializer_list<uint8_t> values);
void update(bool blocking = true);
void partial_update(int x, int y, int w, int h, bool blocking = true);