54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
/**
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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 <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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#include <stdint.h>
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// Relies on XPT2046-compatible mode of ADS7843,
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// hence no Z1 / Z2 measurements are possible.
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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,
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XPT2046_Y = 0x50,
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XPT2046_Z1 = 0x30,
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XPT2046_Z2 = 0x40
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};
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#ifndef 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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public:
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static void init(void);
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static uint8_t read_buttons();
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bool getTouchPoint(uint16_t &x, uint16_t &y);
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static bool isTouched();
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inline void waitForRelease(void) { while (isTouched()) { /* nada */ } }
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inline void waitForTouch(uint16_t &x, uint16_t &y) { while (!getTouchPoint(x, y)) { /* nada */ } }
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private:
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static uint16_t getInTouch(const XPTCoordinate coordinate);
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};
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extern XPT2046 touch;
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