118 lines
4.1 KiB
C
118 lines
4.1 KiB
C
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "supervisor/board.h"
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#include "mpconfigboard.h"
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#include "shared-bindings/busio/SPI.h"
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#include "shared-bindings/displayio/FourWire.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-module/displayio/__init__.h"
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#include "shared-module/displayio/mipi_constants.h"
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#include "esp_log.h"
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displayio_fourwire_obj_t board_display_obj;
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#define DELAY 0x80
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uint8_t display_init_sequence[] = {
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0x01, 0 | DELAY, 150, // SWRESET
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0x11, 0 | DELAY, 255, // SLPOUT
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0x36, 1, 0b10100000, // _MADCTL for rotation 0
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0x3a, 1, 0x55, // COLMOD - 16bit color
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0x21, 0 | DELAY, 10, // _INVON
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0x13, 0 | DELAY, 10, // _NORON
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0x29, 0 | DELAY, 255, // _DISPON
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};
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void board_init(void) {
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// USB
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common_hal_never_reset_pin(&pin_GPIO19);
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common_hal_never_reset_pin(&pin_GPIO20);
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busio_spi_obj_t *spi = &displays[0].fourwire_bus.inline_bus;
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common_hal_busio_spi_construct(spi, &pin_GPIO36, &pin_GPIO35, NULL);
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common_hal_busio_spi_never_reset(spi);
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displayio_fourwire_obj_t *bus = &displays[0].fourwire_bus;
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bus->base.type = &displayio_fourwire_type;
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common_hal_displayio_fourwire_construct(bus,
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spi,
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&pin_GPIO39, // TFT_DC Command or data
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&pin_GPIO40, // TFT_CS Chip select
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&pin_GPIO41, // TFT_RESET Reset
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5000000, // Baudrate
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0, // Polarity
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0); // Phase
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// workaround as board_init() is called before reset_port() in main.c
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pwmout_reset();
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displayio_display_obj_t *display = &displays[0].display;
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display->base.type = &displayio_display_type;
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common_hal_displayio_display_construct(
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display,
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bus,
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240, // Width (after rotation)
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240, // Height (after rotation)
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80, // column start
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0, // row start
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270, // rotation
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16, // Color depth
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false, // Grayscale
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false, // Pixels in a byte share a row. Only used for depth < 8
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1, // bytes per cell. Only valid for depths < 8
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false, // reverse_pixels_in_byte. Only valid for depths < 8
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true, // reverse_pixels_in_word
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MIPI_COMMAND_SET_COLUMN_ADDRESS, // Set column command
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MIPI_COMMAND_SET_PAGE_ADDRESS, // Set row command
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MIPI_COMMAND_WRITE_MEMORY_START, // Write memory command
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display_init_sequence,
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sizeof(display_init_sequence),
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&pin_GPIO38, // backlight pin
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NO_BRIGHTNESS_COMMAND,
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1.0f, // brightness (ignored)
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true, // auto_brightness
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false, // single_byte_bounds
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false, // data_as_commands
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true, // auto_refresh
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60, // native_frames_per_second
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true, // backlight_on_high
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false); // not SH1107
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}
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bool board_requests_safe_mode(void) {
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return false;
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}
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void reset_board(void) {
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}
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void board_deinit(void) {
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common_hal_displayio_release_displays();
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}
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