125 lines
4.7 KiB
C
125 lines
4.7 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 "supervisor/shared/board.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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0xb1, 3, 0x01, 0x2C, 0x2D, // _FRMCTR1
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0xb2, 3, 0x01, 0x2C, 0x2D, //
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0xb3, 6, 0x01, 0x2C, 0x2D, 0x01, 0x2C, 0x2D,
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0xb4, 1, 0x07, // _INVCTR line inversion
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0xc0, 3, 0xa2, 0x02, 0x84, // _PWCTR1 GVDD = 4.7V, 1.0uA
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0xc1, 1, 0xc5, // _PWCTR2 VGH=14.7V, VGL=-7.35V
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0xc2, 2, 0x0a, 0x00, // _PWCTR3 Opamp current small, Boost frequency
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0xc3, 2, 0x8a, 0x2a,
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0xc4, 2, 0x8a, 0xee,
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0xc5, 1, 0x0e, // _VMCTR1 VCOMH = 4V, VOML = -1.1V
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0x2a, 0, // _INVOFF
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0x36, 1, 0b10100000, // _MADCTL for rotation 0
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// 1 clk cycle nonoverlap, 2 cycle gate rise, 3 cycle osc equalie,
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// fix on VTL
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0x3a, 1, 0x05, // COLMOD - 16bit color
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0xe0, 16, 0x02, 0x1c, 0x07, 0x12, // _GMCTRP1 Gamma
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0x37, 0x32, 0x29, 0x2d,
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0x29, 0x25, 0x2B, 0x39,
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0x00, 0x01, 0x03, 0x10,
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0xe1, 16, 0x03, 0x1d, 0x07, 0x06, // _GMCTRN1
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0x2E, 0x2C, 0x29, 0x2D,
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0x2E, 0x2E, 0x37, 0x3F,
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0x00, 0x00, 0x02, 0x10,
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0x2a, 3, 0x02, 0x00, 0x81, // _CASET XSTART = 2, XEND = 129
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0x2b, 3, 0x02, 0x00, 0x81, // _RASET XSTART = 2, XEND = 129
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0x13, 0 | DELAY, 10, // _NORON
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0x29, 0 | DELAY, 100, // _DISPON
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};
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void board_init(void) {
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displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
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busio_spi_obj_t *spi = &bus->inline_bus;
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common_hal_busio_spi_construct(spi, &pin_PB13, &pin_PB15, NULL, false);
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common_hal_busio_spi_never_reset(spi);
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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_PB05, // TFT_DC Command or data
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&pin_PB12, // TFT_CS Chip select
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&pin_PA00, // 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 = &allocate_display()->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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160, // Width
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128, // Height
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0, // column start
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0, // row start
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0, // 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_PA01, // backlight pin
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NO_BRIGHTNESS_COMMAND,
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1.0f, // 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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50000); // backlight pwm frequency
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}
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void reset_board(void) {
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board_reset_user_neopixels(&pin_PA15, 5);
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}
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// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.
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