143 lines
5.6 KiB
C
143 lines
5.6 KiB
C
/*
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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) 2017 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 "hal/include/hal_gpio.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-module/displayio/__init__.h"
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#include "shared-module/displayio/mipi_constants.h"
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#include "shared-bindings/digitalio/DigitalInOut.h"
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displayio_fourwire_obj_t board_display_obj;
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digitalio_digitalinout_obj_t CTR_5V;
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digitalio_digitalinout_obj_t CTR_3V3;
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digitalio_digitalinout_obj_t USB_HOST_ENABLE;
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uint8_t display_init_sequence[] = {
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0x01, 0x80, 0x80, // Software reset then delay 0x80 (128ms)
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0xEF, 0x03, 0x03, 0x80, 0x02,
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0xCF, 0x03, 0x00, 0xC1, 0x30,
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0xED, 0x04, 0x64, 0x03, 0x12, 0x81,
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0xE8, 0x03, 0x85, 0x00, 0x78,
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0xCB, 0x05, 0x39, 0x2C, 0x00, 0x34, 0x02,
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0xF7, 0x01, 0x20,
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0xEA, 0x02, 0x00, 0x00,
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0xc0, 0x01, 0x23, // Power control VRH[5:0]
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0xc1, 0x01, 0x10, // Power control SAP[2:0];BT[3:0]
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0xc5, 0x02, 0x3e, 0x28, // VCM control
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0xc7, 0x01, 0x86, // VCM control2
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0x36, 0x01, 0x38, // Memory Access Control
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0x37, 0x01, 0x00, // Vertical scroll zero
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0x3a, 0x01, 0x55, // COLMOD: Pixel Format Set
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0xb1, 0x02, 0x00, 0x18, // Frame Rate Control (In Normal Mode/Full Colors)
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0xb6, 0x03, 0x08, 0x82, 0x27, // Display Function Control
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0xF2, 0x01, 0x00, // 3Gamma Function Disable
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0x26, 0x01, 0x01, // Gamma curve selected
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0xe0, 0x0f, 0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, 0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03, 0x0E, 0x09, 0x00, // Set Gamma
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0xe1, 0x0f, 0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, 0x31, 0xC1, 0x48, 0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F, // Set Gamma
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0x11, 0x80, 0x78, // Exit Sleep then delay 0x78 (120ms)
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0x29, 0x80, 0x78, // Display on then delay 0x78 (120ms)
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};
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void board_init(void) {
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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_PB20, &pin_PB19, 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_PC06, // TFT_DC Command or data
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&pin_PB21, // TFT_CS Chip select
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&pin_PC07, // TFT_RST Reset
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60000000, // Baudrate
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0, // Polarity
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0); // Phase
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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(display,
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bus,
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320, // Width
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240, // Height
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0, // column start
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0, // row start
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180, // 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 valid for depths < 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_PC05, // 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); // SH1107_addressing
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// Enabling the Power of the 40-pin at the back
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CTR_5V.base.type = &digitalio_digitalinout_type;
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CTR_3V3.base.type = &digitalio_digitalinout_type;
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USB_HOST_ENABLE.base.type = &digitalio_digitalinout_type;
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common_hal_digitalio_digitalinout_construct(&CTR_5V, PIN_CTR_5V);
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common_hal_digitalio_digitalinout_construct(&CTR_3V3, PIN_CTR_3V3);
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common_hal_digitalio_digitalinout_construct(&USB_HOST_ENABLE, PIN_USB_HOST_ENABLE);
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common_hal_digitalio_digitalinout_set_value(&CTR_5V, true);
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common_hal_digitalio_digitalinout_set_value(&CTR_3V3, false);
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common_hal_digitalio_digitalinout_set_value(&USB_HOST_ENABLE, false);
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// Never reset
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common_hal_digitalio_digitalinout_never_reset(&CTR_5V);
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common_hal_digitalio_digitalinout_never_reset(&CTR_3V3);
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common_hal_digitalio_digitalinout_never_reset(&USB_HOST_ENABLE);
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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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}
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