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91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/components/spi/spi.h"
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#include "esphome/components/display/display_buffer.h"
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namespace esphome {
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namespace st7735 {
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static const uint8_t ST7735_TFTWIDTH_128 = 128; // for 1.44 and mini^M
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static const uint8_t ST7735_TFTWIDTH_80 = 80; // for mini^M
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static const uint8_t ST7735_TFTHEIGHT_128 = 128; // for 1.44" display^M
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static const uint8_t ST7735_TFTHEIGHT_160 = 160; // for 1.8" and mini display^M
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// some flags for initR() :(
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static const uint8_t INITR_GREENTAB = 0x00;
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static const uint8_t INITR_REDTAB = 0x01;
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static const uint8_t INITR_BLACKTAB = 0x02;
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static const uint8_t INITR_144GREENTAB = 0x01;
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static const uint8_t INITR_MINI_160X80 = 0x04;
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static const uint8_t INITR_HALLOWING = 0x05;
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static const uint8_t INITR_18GREENTAB = INITR_GREENTAB;
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static const uint8_t INITR_18REDTAB = INITR_REDTAB;
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static const uint8_t INITR_18BLACKTAB = INITR_BLACKTAB;
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enum ST7735Model {
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ST7735_INITR_GREENTAB = INITR_GREENTAB,
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ST7735_INITR_REDTAB = INITR_REDTAB,
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ST7735_INITR_BLACKTAB = INITR_BLACKTAB,
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ST7735_INITR_MINI_160X80 = INITR_MINI_160X80,
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ST7735_INITR_18BLACKTAB = INITR_18BLACKTAB,
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ST7735_INITR_18REDTAB = INITR_18REDTAB
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};
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class ST7735 : public PollingComponent,
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public display::DisplayBuffer,
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public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW, spi::CLOCK_PHASE_LEADING,
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spi::DATA_RATE_8MHZ> {
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public:
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ST7735(ST7735Model model, int width, int height, int colstart, int rowstart, bool eightbitcolor, bool usebgr,
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bool invert_colors);
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void dump_config() override;
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void setup() override;
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void display();
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void update() override;
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void set_model(ST7735Model model) { this->model_ = model; }
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float get_setup_priority() const override { return setup_priority::PROCESSOR; }
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void set_reset_pin(GPIOPin *value) { this->reset_pin_ = value; }
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void set_dc_pin(GPIOPin *value) { dc_pin_ = value; }
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size_t get_buffer_length();
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display::DisplayType get_display_type() override { return display::DisplayType::DISPLAY_TYPE_COLOR; }
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protected:
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void sendcommand_(uint8_t cmd, const uint8_t *data_bytes, uint8_t num_data_bytes);
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void senddata_(const uint8_t *data_bytes, uint8_t num_data_bytes);
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void writecommand_(uint8_t value);
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void writedata_(uint8_t value);
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void write_display_data_();
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void init_reset_();
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void display_init_(const uint8_t *addr);
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void set_addr_window_(uint16_t x, uint16_t y, uint16_t w, uint16_t h);
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void draw_absolute_pixel_internal(int x, int y, Color color) override;
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void spi_master_write_addr_(uint16_t addr1, uint16_t addr2);
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void spi_master_write_color_(uint16_t color, uint16_t size);
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int get_width_internal() override;
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int get_height_internal() override;
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const char *model_str_();
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ST7735Model model_{ST7735_INITR_18BLACKTAB};
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uint8_t colstart_ = 0, rowstart_ = 0;
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bool eightbitcolor_ = false;
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bool usebgr_ = false;
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bool invert_colors_ = false;
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int16_t width_ = 80, height_ = 80; // Watch heap size
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GPIOPin *reset_pin_{nullptr};
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GPIOPin *dc_pin_{nullptr};
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};
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} // namespace st7735
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} // namespace esphome
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