2020-08-08 00:32:30 -05:00
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/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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#include "../../../inc/MarlinConfig.h"
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#if ENABLED(TOUCH_BUTTONS_HW_SPI)
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#include <SPI.h>
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#endif
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2020-08-21 18:54:21 -05:00
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#ifndef TOUCH_MISO_PIN
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#define TOUCH_MISO_PIN MISO_PIN
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#endif
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#ifndef TOUCH_MOSI_PIN
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#define TOUCH_MOSI_PIN MOSI_PIN
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#endif
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#ifndef TOUCH_SCK_PIN
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#define TOUCH_SCK_PIN SCK_PIN
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#endif
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#ifndef TOUCH_CS_PIN
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#define TOUCH_CS_PIN CS_PIN
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2020-08-08 00:32:30 -05:00
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#endif
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#ifndef TOUCH_INT_PIN
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#define TOUCH_INT_PIN -1
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#endif
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#define XPT2046_DFR_MODE 0x00
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#define XPT2046_SER_MODE 0x04
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#define XPT2046_CONTROL 0x80
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enum XPTCoordinate : uint8_t {
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XPT2046_X = 0x10 | XPT2046_CONTROL | XPT2046_DFR_MODE,
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XPT2046_Y = 0x50 | XPT2046_CONTROL | XPT2046_DFR_MODE,
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XPT2046_Z1 = 0x30 | XPT2046_CONTROL | XPT2046_DFR_MODE,
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XPT2046_Z2 = 0x40 | XPT2046_CONTROL | XPT2046_DFR_MODE,
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};
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#if !defined(XPT2046_Z1_THRESHOLD)
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#define XPT2046_Z1_THRESHOLD 10
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#endif
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class XPT2046 {
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private:
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static bool isBusy() { return false; }
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static uint16_t getRawData(const XPTCoordinate coordinate);
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static bool isTouched();
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static inline void DataTransferBegin() { WRITE(TOUCH_CS_PIN, LOW); };
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static inline void DataTransferEnd() { WRITE(TOUCH_CS_PIN, HIGH); };
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#if ENABLED(TOUCH_BUTTONS_HW_SPI)
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static uint16_t HardwareIO(uint16_t data);
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#endif
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static uint16_t SoftwareIO(uint16_t data);
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static uint16_t IO(uint16_t data = 0);
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public:
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#if ENABLED(TOUCH_BUTTONS_HW_SPI)
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static SPIClass SPIx;
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#endif
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static void Init();
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static bool getRawPoint(int16_t *x, int16_t *y);
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};
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