119 lines
4.4 KiB
C
119 lines
4.4 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) 2018 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 "boards/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/displayio/FourWire.h"
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#include "shared-module/displayio/mipi_constants.h"
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#include "tick.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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0xEF, 3, 0x03, 0x80, 0x02,
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0xCF, 3, 0x00, 0xC1, 0x30,
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0xED, 4, 0x64, 0x03, 0x12, 0x81,
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0xE8, 3, 0x85, 0x00, 0x78,
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0xCB, 5, 0x39, 0x2C, 0x00, 0x34, 0x02,
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0xF7, 1, 0x20,
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0xEA, 2, 0x00, 0x00,
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0xc0, 1, 0x23, // Power control VRH[5:0]
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0xc1, 1, 0x10, // Power control SAP[2:0];BT[3:0]
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0xc5, 2, 0x3e, 0x28, // VCM control
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0xc7, 1, 0x86, // VCM control2
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0x36, 1, 0x38, // Memory Access Control
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0x37, 1, 0x00, // Vertical scroll zero
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0x3a, 1, 0x55, // COLMOD: Pixel Format Set
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0xb1, 2, 0x00, 0x18, // Frame Rate Control (In Normal Mode/Full Colors)
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0xb6, 3, 0x08, 0x82, 0x27, // Display Function Control
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0xF2, 1, 0x00, // 3Gamma Function Disable
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0x26, 1, 0x01, // Gamma curve selected
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0xe0, 15, 0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, // Set Gamma
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0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03, 0x0E, 0x09, 0x00,
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0xe1, 15, 0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, // Set Gamma
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0x31, 0xC1, 0x48, 0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F,
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0x11, DELAY, 120, // Exit Sleep
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0x29, DELAY, 120, // Display on
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};
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void board_init(void) {
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board_display_obj.base.type = &displayio_fourwire_type;
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common_hal_displayio_fourwire_construct(&board_display_obj,
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&pin_PA13, // Clock
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&pin_PA12, // Data
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&pin_PB09, // Command or data
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&pin_PB06, // Chip select
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&pin_PA00, // Reset
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320, // Width
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240, // Height
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0, // column start
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0, // row start
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16, // Color depth
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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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uint32_t i = 0;
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common_hal_displayio_fourwire_begin_transaction(&board_display_obj);
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while (i < sizeof(display_init_sequence)) {
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uint8_t *cmd = display_init_sequence + i;
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uint8_t data_size = *(cmd + 1);
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bool delay = (data_size & DELAY) != 0;
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data_size &= ~DELAY;
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uint8_t *data = cmd + 2;
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common_hal_displayio_fourwire_send(&board_display_obj, true, cmd, 1);
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common_hal_displayio_fourwire_send(&board_display_obj, false, data, data_size);
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if (delay) {
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data_size++;
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uint16_t delay_length_ms = *(cmd + 1 + data_size);
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if (delay_length_ms == 255) {
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delay_length_ms = 500;
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}
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uint64_t start = ticks_ms;
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while (ticks_ms - start < delay_length_ms) {}
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} else {
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uint64_t start = ticks_ms;
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while (ticks_ms - start < 10) {}
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}
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i += 2 + data_size;
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}
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common_hal_displayio_fourwire_end_transaction(&board_display_obj);
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}
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bool board_requests_safe_mode(void) {
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return false;
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}
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void reset_board(void) {
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common_hal_displayio_fourwire_show(&board_display_obj, NULL);
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}
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