/** * Marlin 3D Printer Firmware * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] * * Based on Sprinter and grbl. * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . * */ #pragma once #include "../../../inc/MarlinConfig.h" #if ENABLED(TOUCH_BUTTONS_HW_SPI) #include #endif #ifndef TOUCH_MISO_PIN #define TOUCH_MISO_PIN SD_MISO_PIN #endif #ifndef TOUCH_MOSI_PIN #define TOUCH_MOSI_PIN SD_MOSI_PIN #endif #ifndef TOUCH_SCK_PIN #define TOUCH_SCK_PIN SD_SCK_PIN #endif #ifndef TOUCH_CS_PIN #define TOUCH_CS_PIN SD_SS_PIN #endif #ifndef TOUCH_INT_PIN #define TOUCH_INT_PIN -1 #endif #define XPT2046_DFR_MODE 0x00 #define XPT2046_SER_MODE 0x04 #define XPT2046_CONTROL 0x80 enum XPTCoordinate : uint8_t { XPT2046_X = 0x10 | XPT2046_CONTROL | XPT2046_DFR_MODE, XPT2046_Y = 0x50 | XPT2046_CONTROL | XPT2046_DFR_MODE, XPT2046_Z1 = 0x30 | XPT2046_CONTROL | XPT2046_DFR_MODE, XPT2046_Z2 = 0x40 | XPT2046_CONTROL | XPT2046_DFR_MODE, }; #if !defined(XPT2046_Z1_THRESHOLD) #define XPT2046_Z1_THRESHOLD 10 #endif class XPT2046 { private: static bool isBusy() { return false; } static uint16_t getRawData(const XPTCoordinate coordinate); static bool isTouched(); static inline void DataTransferBegin() { WRITE(TOUCH_CS_PIN, LOW); }; static inline void DataTransferEnd() { WRITE(TOUCH_CS_PIN, HIGH); }; #if ENABLED(TOUCH_BUTTONS_HW_SPI) static uint16_t HardwareIO(uint16_t data); #endif static uint16_t SoftwareIO(uint16_t data); static uint16_t IO(uint16_t data = 0); public: #if ENABLED(TOUCH_BUTTONS_HW_SPI) static SPIClass SPIx; #endif static void Init(); static bool getRawPoint(int16_t *x, int16_t *y); };