138 lines
3.7 KiB
C
138 lines
3.7 KiB
C
/*
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ChibiOS-LCD-Driver - Copyright (C) 2012
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Joel Bodenmann aka Tectu <joel@unormal.org>
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This file is part of ChibiOS-LCD-Driver.
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ChibiOS-LCD-Driver 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-LCD-Driver 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 touchpad.c
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* @brief Touchpad Driver code.
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*
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* @addgroup TOUCHPAD
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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#include "gdisp.h"
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#include "touchpad.h"
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#if HAL_USE_TOUCHPAD || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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#ifdef UNUSED
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#elif defined(__GNUC__)
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# define UNUSED(x) UNUSED_ ## x __attribute__((unused))
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#elif defined(__LCLINT__)
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# define UNUSED(x) /*@unused@*/ x
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#else
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# define UNUSED(x) x
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#endif
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables. */
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/*===========================================================================*/
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volatile static struct cal cal = {
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1, 1, 0, 0
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};
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief Touchpad Driver initialization.
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* @note This function is NOT currently implicitly invoked by @p halInit().
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* It must be called manually.
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*
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* @init
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*/
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void tpInit(TOUCHPADDriver *tp) {
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/* Initialise Mutex */
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//MUTEX_INIT
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/* Initialise driver */
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//MUTEX_ENTER
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tp_lld_init(tp);
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//MUTEX_EXIT
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}
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/**
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* @brief Get the X-Coordinate, relative to screen zero point.
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*
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* @return The X position in pixels.
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*
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* @api
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*/
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uint16_t tpReadX(void) {
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uint16_t x, y;
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x = cal.xm * _tpReadRealX() + cal.xn;
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y = cal.ym * _tpReadRealY() + cal.yn;
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//switch(gdispGetOrientation()) {
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switch(portrait) { // implement gdispGetOrientation()
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case portrait:
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return x;
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case landscape:
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return SCREEN_HEIGHT - y;
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case portraitInv:
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return SCREEN_WIDTH - x;
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case landscapeInv:
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return y;
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}
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return x;
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}
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/**
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* @brief Get the X-Coordinate, relative to screen zero point.
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*
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* @return The Y position in pixels.
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*
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* @api
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*/
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uint16_t tpReadY(void) {
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return (tp_lld_read_y());
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}
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#if TOUCHPAD_PRESSURE || defined(__DOXYGEN__)
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/**
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* @brief Get the pressure.
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*
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* @return The pressure.
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*
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* @api
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*/
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uint16_t tpReadZ(void) {
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return (tp_lld_read_z());
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}
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#endif
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#endif /* HAL_USE_TOUCHPAD */
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/** @} */
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