circuitpython/ports/espressif/boards/adafruit_esp32s2_camera/board.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 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 "mpconfigboard.h"
#include "shared-bindings/busio/SPI.h"
#include "shared-bindings/displayio/FourWire.h"
#include "shared-bindings/microcontroller/Pin.h"
#include "shared-module/displayio/__init__.h"
#include "shared-module/displayio/mipi_constants.h"
#include "shared-bindings/board/__init__.h"
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#include "esp_log.h"
displayio_fourwire_obj_t board_display_obj;
#define DELAY 0x80
uint8_t display_init_sequence[] = {
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0x01, 0 | DELAY, 120, // SWRESET
0x11, 0 | DELAY, 5, // SLPOUT
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0x36, 1, 0b10100000, // _MADCTL for rotation 0
0x3a, 1, 0x55, // COLMOD - 16bit color
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0x21, 0, // _INVON
0x13, 0, // _NORON
0x29, 0 | DELAY, 5, // _DISPON
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};
void board_init(void) {
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busio_spi_obj_t *spi = common_hal_board_create_spi(0);
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displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
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bus->base.type = &displayio_fourwire_type;
common_hal_displayio_fourwire_construct(bus,
spi,
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&pin_GPIO40, // TFT_DC Command or data
&pin_GPIO39, // TFT_CS Chip select
&pin_GPIO38, // TFT_RESET Reset
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40000000, // Baudrate
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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,
240, // Width (after rotation)
240, // Height (after rotation)
80, // column start
0, // row start
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0, // rotation
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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
display_init_sequence,
sizeof(display_init_sequence),
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&pin_GPIO41, // backlight pin
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NO_BRIGHTNESS_COMMAND,
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1.0f, // brightness
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false, // single_byte_bounds
false, // data_as_commands
true, // auto_refresh
60, // native_frames_per_second
true, // backlight_on_high
false, // not SH1107
50000); // backlight pwm frequency
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}
void board_deinit(void) {
common_hal_displayio_release_displays();
}
// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.