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| 1 | +// This file is part of the CircuitPython project: https://circuitpython.org |
| 2 | +// |
| 3 | +// SPDX-FileCopyrightText: Copyright (c) 2020 Scott Shawcroft for Adafruit Industries |
| 4 | +// |
| 5 | +// SPDX-License-Identifier: MIT |
| 6 | + |
| 7 | +#include "supervisor/board.h" |
| 8 | +#include "mpconfigboard.h" |
| 9 | +#include "shared-bindings/busio/SPI.h" |
| 10 | +#include "shared-bindings/fourwire/FourWire.h" |
| 11 | +#include "shared-bindings/microcontroller/Pin.h" |
| 12 | +#include "shared-module/displayio/__init__.h" |
| 13 | +#include "shared-bindings/board/__init__.h" |
| 14 | +#include "supervisor/shared/board.h" |
| 15 | + |
| 16 | +#include "shared-module/displayio/mipi_constants.h" |
| 17 | +#include "components/driver/gpio/include/driver/gpio.h" |
| 18 | +#include "components/hal/include/hal/gpio_hal.h" |
| 19 | +#include "common-hal/microcontroller/Pin.h" |
| 20 | + |
| 21 | +#define DELAY 0x80 |
| 22 | + |
| 23 | +// ST7789 |
| 24 | +uint8_t display_init_sequence[] = { |
| 25 | + 0x01, 0 | DELAY, 0x96, // _SWRESET and Delay 150ms |
| 26 | + 0x11, 0 | DELAY, 0xFF, // _SLPOUT and Delay 500ms |
| 27 | + 0x3A, 0x81, 0x55, 0x0A, // _COLMOD and Delay 10ms |
| 28 | + 0x36, 0x01, 0x08, // _MADCTL (BGR) |
| 29 | + 0x21, 0 | DELAY, 0x0A, // _INVON Hack and Delay 10ms |
| 30 | + 0x13, 0 | DELAY, 0x0A, // _NORON and Delay 10ms |
| 31 | + 0x36, 0x01, 0xA0, // _MADCTL (Landscape) |
| 32 | + 0xE0, 0x0E, 0xD0, 0x00, 0x02, 0x07, 0x0A, 0x28, 0x32, 0x44, |
| 33 | + 0x42, 0x06, 0x0E, 0x12, 0x14, 0x17, // gamma-curve positive |
| 34 | + 0xE1, 0x0E, 0xD0, 0x00, 0x02, 0x07, 0x0A, 0x28, 0x31, 0x54, |
| 35 | + 0x47, 0x0E, 0x1C, 0x17, 0x1B, 0x1E, // gamma-curve negative |
| 36 | + 0x29, 0 | DELAY, 0xFF, // _DISPON and Delay 500ms |
| 37 | +}; |
| 38 | + |
| 39 | +static void display_init(void) { |
| 40 | + busio_spi_obj_t *spi = common_hal_board_create_spi(0); |
| 41 | + fourwire_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus; |
| 42 | + bus->base.type = &fourwire_fourwire_type; |
| 43 | + |
| 44 | + common_hal_fourwire_fourwire_construct( |
| 45 | + bus, |
| 46 | + spi, |
| 47 | + &pin_GPIO2, // TFT_DC |
| 48 | + &pin_GPIO15, // TFT_CS |
| 49 | + NULL, // TFT_RST |
| 50 | + 26600000, // Baudrate |
| 51 | + 0, // Polarity |
| 52 | + 0 // Phase |
| 53 | + ); |
| 54 | + |
| 55 | + busdisplay_busdisplay_obj_t *display = &allocate_display()->display; |
| 56 | + display->base.type = &busdisplay_busdisplay_type; |
| 57 | + |
| 58 | + common_hal_busdisplay_busdisplay_construct(display, |
| 59 | + bus, |
| 60 | + 320, // Width |
| 61 | + 240, // Height |
| 62 | + 0, // column start |
| 63 | + 0, // row start |
| 64 | + 0, // rotation |
| 65 | + 16, // Color depth |
| 66 | + false, // Grayscale |
| 67 | + false, // pixels in a byte share a row. Only valid for depths < 8 |
| 68 | + 1, // bytes per cell. Only valid for depths < 8 |
| 69 | + false, // reverse_pixels_in_byte. Only valid for depths < 8 |
| 70 | + true, // reverse_pixels_in_word |
| 71 | + MIPI_COMMAND_SET_COLUMN_ADDRESS, // Set column command |
| 72 | + MIPI_COMMAND_SET_PAGE_ADDRESS, // Set row command |
| 73 | + MIPI_COMMAND_WRITE_MEMORY_START, // Write memory command |
| 74 | + display_init_sequence, |
| 75 | + sizeof(display_init_sequence), |
| 76 | + &pin_GPIO27, // backlight pin |
| 77 | + NO_BRIGHTNESS_COMMAND, |
| 78 | + 1.0f, // brightness |
| 79 | + false, // single_byte_bounds |
| 80 | + false, // data_as_commands |
| 81 | + true, // auto_refresh |
| 82 | + 60, // native_frames_per_second |
| 83 | + true, // backlight_on_high |
| 84 | + false, // SH1107_addressing |
| 85 | + 50000); // backlight pwm frequency |
| 86 | +} |
| 87 | + |
| 88 | +void board_init(void) { |
| 89 | + display_init(); |
| 90 | +} |
| 91 | + |
| 92 | +bool espressif_board_reset_pin_number(gpio_num_t pin_number) { |
| 93 | + // Pull the speaker pin low to reduce noise on reset |
| 94 | + if (pin_number == 26) { |
| 95 | + // Turn on audio |
| 96 | + gpio_set_direction(pin_number, GPIO_MODE_DEF_OUTPUT); |
| 97 | + gpio_set_level(pin_number, false); |
| 98 | + return true; |
| 99 | + } |
| 100 | + return false; |
| 101 | +} |
| 102 | + |
| 103 | +// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here. |
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