circuitpython/ports/atmel-samd/boards/pewpew_lcd/board.c

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/*
* 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 "supervisor/board.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"
displayio_fourwire_obj_t board_display_obj;
#define DELAY 0x80
uint8_t display_init_sequence[] = {
0xe2, 0, // reset
0x2f, 0, // power on
0x80, 0, // contrast 0
0xa4, 0, // display normal
0xaf, 0, // display on
0x40, 0, // start line 0
};
void board_init(void) {
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displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
busio_spi_obj_t *spi = &bus->inline_bus;
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common_hal_busio_spi_construct(spi, &pin_PA23, &pin_PA22, NULL, false);
common_hal_busio_spi_never_reset(spi);
bus->base.type = &displayio_fourwire_type;
common_hal_displayio_fourwire_construct(bus,
spi,
NULL, // Command or data
&pin_PA19, // Chip select
&pin_PA18, // Reset
40000000LL, // Baudrate
0, // Polarity
0); // Phase
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displayio_display_obj_t *display = &allocate_display()->display;
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display->base.type = &displayio_display_type;
common_hal_displayio_display_construct(display,
bus,
96, // Width
68, // Height
0, // column start
0, // row start
180, // rotation
1, // Color depth
true, // grayscale
false, // pixels in byte share row. Only used with depth < 8
1, // bytes per cell. Only valid for depths < 8
false, // reverse_pixels_in_byte. Only valid for depths < 8
false, // reverse_pixels_in_word
0, // Set column command
0, // Set row command
0, // Write memory command
display_init_sequence,
sizeof(display_init_sequence),
NULL, // &pin_PA17, // brightness pin
NO_BRIGHTNESS_COMMAND,
0.0f, // brightness
false, // single_byte_bounds
true, // data as commands
true, // auto_refresh
2, // native_frames_per_second
true, // backlight_on_high
true, // SH1107_addressing
50000); // backlight pwm frequency
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}
// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.