circuitpython/ports/esp32s2/common-hal/displayio/ParallelBus.h

48 lines
2.3 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Lucian Copeland 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.
*/
#ifndef MICROPY_INCLUDED_ESP32S2_COMMON_HAL_DISPLAYIO_PARALLELBUS_H
#define MICROPY_INCLUDED_ESP32S2_COMMON_HAL_DISPLAYIO_PARALLELBUS_H
#include "common-hal/digitalio/DigitalInOut.h"
typedef struct {
mp_obj_base_t base;
uint32_t *bus; // pointer where 8 bits of data are written to the display
digitalio_digitalinout_obj_t command;
digitalio_digitalinout_obj_t chip_select;
digitalio_digitalinout_obj_t reset;
digitalio_digitalinout_obj_t write;
digitalio_digitalinout_obj_t read;
uint8_t data0_pin; // pin number for the lowest number data pin. Must be 8-bit aligned
bool data_write_same_register; // if data and write pins are in the sare
uint32_t *write_set_register; // pointer to the write group for setting the write bit to latch the data on the LCD
uint32_t *write_clear_register; // pointer to the write group for clearing the write bit to latch the data on the LCD
uint32_t write_mask; // bit mask for the single bit for the write pin register
} displayio_parallelbus_obj_t;
#endif // MICROPY_INCLUDED_ESP32S2_COMMON_HAL_DISPLAYIO_PARALLELBUS_H