119 lines
4.7 KiB
C++
119 lines
4.7 KiB
C++
//
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// Created by Clyde Stubbs on 29/10/2023.
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//
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#pragma once
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// only applicable on ESP32-P4
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#ifdef USE_ESP32_VARIANT_ESP32P4
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#include "esphome/core/component.h"
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#include "esphome/core/application.h"
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#include "esphome/core/log.h"
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#include "esphome/core/gpio.h"
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#include "esphome/components/display/display.h"
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#include "esp_lcd_panel_ops.h"
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#include "esp_lcd_panel_io.h"
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#include "esp_lcd_mipi_dsi.h"
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namespace esphome {
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namespace mipi_dsi {
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constexpr static const char *const TAG = "display.mipi_dsi";
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const uint8_t SW_RESET_CMD = 0x01;
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const uint8_t SLEEP_OUT = 0x11;
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const uint8_t SDIR_CMD = 0xC7;
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const uint8_t MADCTL_CMD = 0x36;
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const uint8_t INVERT_OFF = 0x20;
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const uint8_t INVERT_ON = 0x21;
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const uint8_t DISPLAY_ON = 0x29;
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const uint8_t CMD2_BKSEL = 0xFF;
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const uint8_t DELAY_FLAG = 0xFF;
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const uint8_t MADCTL_BGR = 0x08;
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const uint8_t MADCTL_MX = 0x40;
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const uint8_t MADCTL_MY = 0x80;
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const uint8_t MADCTL_MV = 0x20; // row/column swap
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const uint8_t MADCTL_XFLIP = 0x02; // Mirror the display horizontally
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const uint8_t MADCTL_YFLIP = 0x01; // Mirror the display vertically
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class MIPI_DSI : public display::Display {
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public:
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MIPI_DSI(size_t width, size_t height, display::ColorBitness color_depth, uint8_t pixel_mode)
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: width_(width), height_(height), color_depth_(color_depth), pixel_mode_(pixel_mode) {}
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display::ColorOrder get_color_mode() { return this->color_mode_; }
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void set_color_mode(display::ColorOrder color_mode) { this->color_mode_ = color_mode; }
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void set_invert_colors(bool invert_colors) { this->invert_colors_ = invert_colors; }
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display::DisplayType get_display_type() override { return display::DisplayType::DISPLAY_TYPE_COLOR; }
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void set_reset_pin(GPIOPin *reset_pin) { this->reset_pin_ = reset_pin; }
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void set_enable_pins(std::vector<GPIOPin *> enable_pins) { this->enable_pins_ = std::move(enable_pins); }
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void set_pclk_frequency(float pclk_frequency) { this->pclk_frequency_ = pclk_frequency; }
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int get_width_internal() override { return this->width_; }
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int get_height_internal() override { return this->height_; }
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void set_hsync_back_porch(uint16_t hsync_back_porch) { this->hsync_back_porch_ = hsync_back_porch; }
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void set_hsync_front_porch(uint16_t hsync_front_porch) { this->hsync_front_porch_ = hsync_front_porch; }
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void set_hsync_pulse_width(uint16_t hsync_pulse_width) { this->hsync_pulse_width_ = hsync_pulse_width; }
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void set_vsync_pulse_width(uint16_t vsync_pulse_width) { this->vsync_pulse_width_ = vsync_pulse_width; }
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void set_vsync_back_porch(uint16_t vsync_back_porch) { this->vsync_back_porch_ = vsync_back_porch; }
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void set_vsync_front_porch(uint16_t vsync_front_porch) { this->vsync_front_porch_ = vsync_front_porch; }
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void set_init_sequence(const std::vector<uint8_t> &init_sequence) { this->init_sequence_ = init_sequence; }
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void set_model(const char *model) { this->model_ = model; }
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void set_lane_bit_rate(float lane_bit_rate) { this->lane_bit_rate_ = lane_bit_rate; }
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void set_lanes(uint8_t lanes) { this->lanes_ = lanes; }
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void smark_failed(const LogString *message, esp_err_t err);
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void update() override;
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void setup() override;
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void draw_pixels_at(int x_start, int y_start, int w, int h, const uint8_t *ptr, display::ColorOrder order,
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display::ColorBitness bitness, bool big_endian, int x_offset, int y_offset, int x_pad) override;
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void draw_pixel_at(int x, int y, Color color) override;
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void fill(Color color) override;
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int get_width() override;
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int get_height() override;
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void dump_config() override;
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protected:
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void write_to_display_(int x_start, int y_start, int w, int h, const uint8_t *ptr, int x_offset, int y_offset,
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int x_pad);
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bool check_buffer_();
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GPIOPin *reset_pin_{nullptr};
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std::vector<GPIOPin *> enable_pins_{};
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size_t width_{};
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size_t height_{};
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uint16_t hsync_pulse_width_ = 10;
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uint16_t hsync_back_porch_ = 10;
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uint16_t hsync_front_porch_ = 20;
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uint16_t vsync_pulse_width_ = 10;
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uint16_t vsync_back_porch_ = 10;
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uint16_t vsync_front_porch_ = 10;
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const char *model_{"Unknown"};
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std::vector<uint8_t> init_sequence_{};
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float pclk_frequency_ = 16; // in MHz
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float lane_bit_rate_{1500}; // in Mbps
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uint8_t lanes_{2}; // 1, 2, 3 or 4 lanes
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bool invert_colors_{};
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display::ColorOrder color_mode_{display::COLOR_ORDER_BGR};
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display::ColorBitness color_depth_;
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uint8_t pixel_mode_{};
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esp_lcd_panel_handle_t handle_{};
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esp_lcd_dsi_bus_handle_t bus_handle_{};
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esp_lcd_panel_io_handle_t io_handle_{};
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SemaphoreHandle_t io_lock_{};
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uint8_t *buffer_{nullptr};
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uint16_t x_low_{1};
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uint16_t y_low_{1};
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uint16_t x_high_{0};
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uint16_t y_high_{0};
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};
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} // namespace mipi_dsi
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} // namespace esphome
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#endif
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