epaper_spi_jd79660.h

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#pragma once
 
#include "epaper_spi.h"
 
namespace esphome::epaper_spi {
 
class EPaperJD79660 final : public EPaperBase {
 public:
  EPaperJD79660(const char *name, uint16_t width, uint16_t height, const uint8_t *init_sequence,
                size_t init_sequence_length, const uint8_t *fast_update, uint16_t fast_update_length)
      : EPaperBase(name, width, height, init_sequence, init_sequence_length, DISPLAY_TYPE_COLOR),
        fast_update_(fast_update),
        fast_update_length_(fast_update_length) {
    this->row_width_ = (width + 3) / 4;  // Fix base class calc (2bpp instead of 1bpp)
    this->buffer_length_ = this->row_width_ * height;
  }
 
  void fill(Color color) override;
 
 protected:
  void draw_pixel_at(int x, int y, Color color) override;
 
  bool reset() override;
 
  bool initialise(bool partial) override;
 
  bool transfer_data() override;
 
  void power_on() override {}
 
  void refresh_screen([[maybe_unused]] bool partial) override;
 
  void power_off() override;
 
  void deep_sleep() override;
 
  void write_fastinit_();
 
  bool transfer_buffer_chunks_();
 
  static constexpr uint8_t CMD_POWEROFF = 0x02;
  static constexpr uint8_t CMD_DEEPSLEEP = 0x07;
  static constexpr uint8_t CMD_TRANSFER = 0x10;
  static constexpr uint8_t CMD_REFRESH = 0x12;
  enum class FSMState : uint8_t {
    NONE = 0,  
 
    /* Reset state steps */
    RESET_STEP0_H,
    RESET_STEP1_L,
    RESET_STEP2_IDLECHECK,
 
    /* Init state steps */
    INIT_STEP0_REGULARINIT,
    INIT_STEP1_FASTINIT,
  };
 
  static constexpr uint16_t SLEEP_MS_RESET0 = 200;
 
  static constexpr uint16_t SLEEP_MS_RESET1 = 2;
 
  static constexpr uint16_t SLEEP_MS_RESET2 = 200;
 
  // properties initialised in the constructor
  const uint8_t *const fast_update_{};
  const uint16_t fast_update_length_{};
 
  FSMState step_{FSMState::NONE};
};
 
}  // namespace esphome::epaper_spi