text: /*
   * This file is part of the MicroPython project, http://micropython.org/
   *
   * The MIT License (MIT)
   *
   * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  
  #include "boards/board.h"
  #include "mpconfigboard.h"
  
  #include "shared-bindings/board/__init__.h"
  #include "shared-bindings/displayio/FourWire.h"
  #include "shared-module/displayio/__init__.h"
  #include "shared-module/displayio/mipi_constants.h"
  #include "shared-bindings/busio/SPI.h"
  
  #include "supervisor/spi_flash_api.h"
  
  displayio_fourwire_obj_t board_display_obj;
  
  #define DELAY 0x80
  
  uint8_t display_init_sequence[] = {
      0x01, 0 | DELAY, 150, // SWRESET
  	0x11, 0 | DELAY, 255, // SLPOUT
  	0xb1, 3, 0x01, 0x2C, 0x2D, // _FRMCTR1
  	0xb2, 3, 0x01, 0x2C, 0x2D, //
  	0xb3, 6, 0x01, 0x2C, 0x2D, 0x01, 0x2C, 0x2D,
  	0xb4, 1, 0x07, // _INVCTR line inversion
  	0xc0, 3, 0xa2, 0x02, 0x84, // _PWCTR1 GVDD = 4.7V, 1.0uA
  	0xc1, 1, 0xc5, // _PWCTR2 VGH=14.7V, VGL=-7.35V
  	0xc2, 2, 0x0a, 0x00, // _PWCTR3 Opamp current small, Boost frequency
  	0xc3, 2, 0x8a, 0x2a,
  	0xc4, 2, 0x8a, 0xee,
  	0xc5, 1, 0x0e, // _VMCTR1 VCOMH = 4V, VOML = -1.1V
  	0x20, 0, // _INVOFF //MISMATCh 0x2a vs 0x20
  	0x36, 1, 0x18, // _MADCTL bottom to top refresh
  	// 1 clk cycle nonoverlap, 2 cycle gate rise, 3 sycle osc equalie,
  	// fix on VTL
  	0x3a, 1, 0x05, // COLMOD - 16bit color
  	0xe0, 0x10, 0x02, 0x1c, 0x07, 0x12,
  				0x37, 0x32, 0x29, 0x2d,
  				0x29, 0x25, 0x2B, 0x39,
  				0x00, 0x01, 0x03, 0x10, // _GMCTRP1 Gamma
  	0xe1, 0x10, 0x03, 0x1d, 0x07, 0x06,
  				0x2E, 0x2C, 0x29, 0x2D,
  				0x2E, 0x2E, 0x37, 0x3F,
  				0x00, 0x00, 0x02, 0x10, // _GMCTRN1
  	0x13, 0 | DELAY, 10, // _NORON
  	0x29, 0 | DELAY, 100, // _DISPON
  };
  
  void board_init(void) {
      displayio_fourwire_obj_t* bus = &displays[0].fourwire_bus;
      bus->base.type = &displayio_fourwire_type;
      busio_spi_obj_t *internal_spi = &supervisor_flash_spi_bus;
      common_hal_displayio_fourwire_construct(bus,
          internal_spi,
          &pin_PA08, // Command or data
          &pin_PB12, // Chip select
          &pin_PB10, // Reset
          24000000, // Baudrate
          0, // Polarity
          0); // Phase
  
      displayio_display_obj_t* display = &displays[0].display;
      display->base.type = &displayio_display_type;
      common_hal_displayio_display_construct(display,
          bus,
          160, // Width
          128, // Height
          0, // column start
          0, // row start
          90, // rotation
          16, // Color depth
          false, // Grayscale
          false, // Pixels in a byte share a row. Only used for depth < 8
          1, // bytes per cell. Only valid for depths < 8
          false, // reverse_pixels_in_byte. Only valid for depths < 8
          true, // reverse_pixels_in_word
          MIPI_COMMAND_SET_COLUMN_ADDRESS, // Set column command
          MIPI_COMMAND_SET_PAGE_ADDRESS, // Set row command
          MIPI_COMMAND_WRITE_MEMORY_START, // Write memory command
          0x37, // set vertical scroll command
          display_init_sequence,
          sizeof(display_init_sequence),
          &pin_PB03,
          NO_BRIGHTNESS_COMMAND,
          1.0f, // brightness (ignored)
          false, // auto_brightness
          false, // single_byte_bounds
          false, // data_as_commands
          true, // auto_refresh
          60, // native_frames_per_second
          true); // backlight_on_high
  }
  
  bool board_requests_safe_mode(void) {
      return false;
  }
  
  void reset_board(void) {
  
  }
  