131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/*
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ChibiOS/GFX - Copyright (C) 2012
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Joel Bodenmann aka Tectu <joel@unormal.org>
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This file is part of ChibiOS/GFX.
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ChibiOS/GFX 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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ChibiOS/GFX 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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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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* @file include/lld/touchscreen/touchscreen_lld.h
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* @brief TOUCHSCREEN Driver subsystem low level driver header.
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*
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* @addtogroup TOUCHSCREEN
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* @{
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*/
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#ifndef TOUCHSCREEN_LLD_H
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#define TOUCHSCREEN_LLD_H
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#if GFX_USE_TOUCHSCREEN || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Include the low level driver configuration information */
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/*===========================================================================*/
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#include "touchscreen_lld_config.h"
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/*===========================================================================*/
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/* Error checks. */
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/*===========================================================================*/
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#ifndef TOUCHSCREEN_NEED_MULTITHREAD
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#define TOUCHSCREEN_NEED_MULTITHREAD FALSE
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#endif
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#ifndef TOUCHSCREEN_XY_INVERTED
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#define TOUCHSCREEN_XY_INVERTED FALSE
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#endif
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#ifndef TOUCHSCREEN_HAS_PRESSED
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#define TOUCHSCREEN_HAS_PRESSED FALSE
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#endif
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#ifndef TOUCHSCREEN_HAS_PRESSURE
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#define TOUCHSCREEN_HAS_PRESSURE FALSE
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#endif
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#ifndef TOUCHSCREEN_SPI_PROLOGUE
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#define TOUCHSCREEN_SPI_PROLOGUE()
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#endif
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#ifndef TOUCHSCREEN_SPI_EPILOGUE
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#define TOUCHSCREEN_SPI_EPILOGUE()
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#endif
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#ifndef TOUCHSCREEN_STORE_CALIBRATION
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#define TOUCHSCREEN_STORE_CALIBRATION FALSE
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#endif
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#ifndef TOUCHSCREEN_VERIFY_CALIBRATION
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#define TOUCHSCREEN_VERIFY_CALIBRATION FALSE
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#endif
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#ifndef TOUCHSCREEN_CONVERSIONS
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#define TOUCHSCREEN_CONVERSIONS 3
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#endif
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/*===========================================================================*/
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/* Driver types. */
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/*===========================================================================*/
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/**
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* @brief Structure representing a touchscreen driver. Hardware dependant.
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*/
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typedef struct TouchscreenDriver TouchscreenDriver;
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// Forward declaration
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struct cal_t;
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Core functions */
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void ts_lld_init(const TouchscreenDriver *ts);
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uint16_t ts_lld_read_value(uint8_t cmd);
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uint16_t ts_lld_read_x(void);
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uint16_t ts_lld_read_y(void);
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#if TOUCHSCREEN_HAS_PRESSED
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uint8_t ts_lld_pressed(void);
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#endif
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#if TOUCHSCREEN_HAS_PRESSURE
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uint16_t ts_lld_read_z(void);
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#endif
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#if TOUCHSCREEN_STORE_CALIBRATION
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// These may be defined by the low level driver or by the application
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void ts_store_calibration_lld(struct cal_t *cal);
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struct cal_t *ts_restore_calibration_lld(void);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* GFX_USE_TOUCHSCREEN */
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#endif /* _TOUCHSCREEN_LLD_H */
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/** @} */
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