circuitpython/ports/espressif/boards/m5stack_core_fire/board.c

119 lines
4.9 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2022 CDarius
*
* 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"
displayio_fourwire_obj_t board_display_obj;
// display init sequence according to M5Gfx
uint8_t display_init_sequence[] = {
0x01, 0x80, 0x80, // Software reset then delay 0x80 (128ms)
0xC8, 0x03, 0xFF, 0x93, 0x42, // Turn on the external command
0xC0, 0x02, 0x12, 0x12, // Power Control 1
0xC1, 0x01, 0x03, // Power Control 2
0xC5, 0x01, 0xF2, // VCOM Control 1
0xB0, 0x01, 0xE0, // RGB Interface SYNC Mode
0xF6, 0x03, 0x01, 0x00, 0x00, // Interface control
0XE0, 0x0F, 0x00, 0x0C, 0x11, 0x04, 0x11, 0x08, 0x37, 0x89, 0x4C, 0x06, 0x0C, 0x0A, 0x2E, 0x34, 0x0F, // Positive Gamma Correction
0xE1, 0x0F, 0x00, 0x0B, 0x11, 0x05, 0x13, 0x09, 0x33, 0x67, 0x48, 0x07, 0x0E, 0x0B, 0x2E, 0x33, 0x0F, // Negative Gamma Correction
0xB6, 0x04, 0x08, 0x82, 0x1D, 0x04, // Display Function Control
0x3A, 0x01, 0x55, // COLMOD: Pixel Format Set 16 bit
0x21, 0x00, // Display inversion ON
0x36, 0x01, 0x08, // Memory Access Control: RGB order
0x11, 0x80, 0x78, // Exit Sleep then delay 0x78 (120ms)
0x29, 0x80, 0x78, // Display on then delay 0x78 (120ms)
};
void board_init(void) {
busio_spi_obj_t *spi = common_hal_board_create_spi(0);
displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
bus->base.type = &displayio_fourwire_type;
common_hal_displayio_fourwire_construct(
bus,
spi,
&pin_GPIO27, // DC
&pin_GPIO14, // CS
&pin_GPIO33, // RST
40000000, // baudrate
0, // polarity
0 // phase
);
displayio_display_obj_t *display = &allocate_display()->display;
display->base.type = &displayio_display_type;
common_hal_displayio_display_construct(
display,
bus,
320, // width (after rotation)
240, // height (after rotation)
0, // column start
0, // row start
0, // rotation
16, // color depth
false, // grayscale
false, // pixels in a byte share a row. Only valid for depths < 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),
&pin_GPIO32, // backlight pin
NO_BRIGHTNESS_COMMAND,
1.0f, // brightness
false, // single_byte_bounds
false, // data_as_commands
true, // auto_refresh
61, // native_frames_per_second
true, // backlight_on_high
false, // SH1107_addressing
50000 // backlight pwm frequency
);
}
bool espressif_board_reset_pin_number(gpio_num_t pin_number) {
// Set speaker gpio to ground to prevent noise from the speaker
if (pin_number == 25) {
gpio_set_direction(pin_number, GPIO_MODE_DEF_OUTPUT);
gpio_set_level(pin_number, false);
return true;
}
return false;
}