removed touchscreen drivers

ugfx_release_2.6
Joel Bodenmann 2012-12-16 23:10:16 +01:00
parent 6ce59a4d7d
commit 8d048ea4e2
12 changed files with 0 additions and 925 deletions

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To use this driver:
1. Add in your halconf.h:
a) #define GFX_USE_TOUCHSCREEN TRUE
2. To your makefile add the following lines:
include $(GFXLIB)/drivers/touchscreen/ADS7843/touchscreen_lld.mk

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/*
ChibiOS/GFX - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX 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.
ChibiOS/GFX 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 <http://www.gnu.org/licenses/>.
*/
/**
* @file drivers/touchscreen/ADS7843/touchscreen_lld.c
* @brief Touchscreen Driver subsystem low level driver source.
*
* @addtogroup TOUCHSCREEN
* @{
*/
#include "ch.h"
#include "hal.h"
#include "touchscreen.h"
#if GFX_USE_TOUCHSCREEN /*|| defined(__DOXYGEN__)*/
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
#if !defined(__DOXYGEN__)
/* Local copy of the current touchscreen driver */
static const TouchscreenDriver *tsDriver;
static uint16_t sampleBuf[7];
#endif
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/* ---- Required Routines ---- */
/**
* @brief Low level touchscreen driver initialization.
*
* @param[in] ts The touchscreen driver
*
* @notapi
*/
void ts_lld_init(const TouchscreenDriver *ts) {
tsDriver = ts;
if(tsDriver->direct_init)
spiStart(tsDriver->spip, tsDriver->spicfg);
}
/**
* @brief Reads a conversion from the touchscreen
*
* @param[in] cmd The command bits to send to the touchscreen
*
* @return The read value 12-bit right-justified
*
* @note This function only reads data, it is assumed that the pins are
* configured properly and the bus has been acquired beforehand
*
* @notapi
*/
uint16_t ts_lld_read_value(uint8_t cmd) {
static uint8_t txbuf[3] = {0};
static uint8_t rxbuf[3] = {0};
uint16_t ret;
txbuf[0] = cmd;
spiExchange(tsDriver->spip, 3, txbuf, rxbuf);
ret = (rxbuf[1] << 5) | (rxbuf[2] >> 3);
return ret;
}
/**
* @brief 7-point median filtering code for touchscreen samples
*
* @note This is an internally used routine only.
*
* @notapi
*/
static void ts_lld_filter(void) {
uint16_t temp;
int i,j;
for(i = 0; i < 4; i++) {
for(j = i; j < 7; j++) {
if(sampleBuf[i] > sampleBuf[j]) {
/* Swap the values */
temp = sampleBuf[i];
sampleBuf[i] = sampleBuf[j];
sampleBuf[j] = temp;
}
}
}
}
/**
* @brief Reads out the X direction.
*
* @note The samples are median filtered for greater noise reduction
*
* @notapi
*/
uint16_t ts_lld_read_x(void) {
int i;
#if defined(SPI_USE_MUTUAL_EXCLUSION)
spiAcquireBus(tsDriver->spip);
#endif
TOUCHSCREEN_SPI_PROLOGUE();
palClearPad(tsDriver->spicfg->ssport, tsDriver->spicfg->sspad);
/* Discard the first conversion - very noisy and keep the ADC on hereafter
* till we are done with the sampling. Note that PENIRQ is disabled.
*/
ts_lld_read_value(0xD1);
for(i = 0; i < 7; i++) {
sampleBuf[i] = ts_lld_read_value(0xD1);
}
/* Switch on PENIRQ once again - perform a dummy read */
ts_lld_read_value(0xD0);
palSetPad(tsDriver->spicfg->ssport, tsDriver->spicfg->sspad);
TOUCHSCREEN_SPI_EPILOGUE();
#if defined(SPI_USE_MUTUAL_EXCLUSION)
spiReleaseBus(tsDriver->spip);
#endif
/* Find the median - use selection sort */
ts_lld_filter();
return sampleBuf[3];
}
/*
* @brief Reads out the Y direction.
*
* @notapi
*/
uint16_t ts_lld_read_y(void) {
int i;
#if defined(SPI_USE_MUTUAL_EXCLUSION)
spiAcquireBus(tsDriver->spip);
#endif
TOUCHSCREEN_SPI_PROLOGUE();
palClearPad(tsDriver->spicfg->ssport, tsDriver->spicfg->sspad);
/* Discard the first conversion - very noisy and keep the ADC on hereafter
* till we are done with the sampling. Note that PENIRQ is disabled.
*/
ts_lld_read_value(0x91);
for(i = 0; i < 7; i++) {
sampleBuf[i] = ts_lld_read_value(0x91);
}
/* Switch on PENIRQ once again - perform a dummy read */
ts_lld_read_value(0x90);
palSetPad(tsDriver->spicfg->ssport, tsDriver->spicfg->sspad);
TOUCHSCREEN_SPI_EPILOGUE();
#ifdef SPI_USE_MUTUAL_EXCLUSION
spiReleaseBus(tsDriver->spip);
#endif
/* Find the median - use selection sort */
ts_lld_filter();
return sampleBuf[3];
}
/* ---- Optional Routines ---- */
#if TOUCHSCREEN_HAS_PRESSED || defined(__DOXYGEN__)
/*
* @brief for checking if touchscreen is pressed or not.
*
* @return 1 if pressed / 0 if not pressed
*
* @notapi
*/
uint8_t ts_lld_pressed(void) {
return (!palReadPad(tsDriver->tsIRQPort, tsDriver->tsIRQPin));
}
#endif
#if TOUCHSCREEN_HAS_PRESSURE || defined(__DOXYGEN__)
/*
* @brief Reads out the Z direction / pressure.
*
* @notapi
*/
uint16_t ts_lld_read_z(void) {
/* ToDo */
return 42;
}
#endif
#endif /* GFX_USE_TOUCHSCREEN */
/** @} */

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# List the required driver.
GFXSRC += $(GFXLIB)/drivers/touchscreen/ADS7843/touchscreen_lld.c
# Required include directories
GFXINC += $(GFXLIB)/drivers/touchscreen/ADS7843

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/*
ChibiOS/GFX - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX 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.
ChibiOS/GFX 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 <http://www.gnu.org/licenses/>.
*/
/**
* @file drivers/touchscreen/ADS7843/touchscreen_lld_config.h
* @brief Touchscreen Driver subsystem low level driver.
*
* @addtogroup TOUCHSCREEN
* @{
*/
#ifndef TOUCHSCREEN_LLD_CONFIG_H
#define TOUCHSCREEN_LLD_CONFIG_H
#if GFX_USE_TOUCHSCREEN /*|| defined(__DOXYGEN__)*/
/*===========================================================================*/
/* Driver hardware support. */
/*===========================================================================*/
#define TOUCHSCREEN_HAS_PRESSED TRUE
#define TOUCHSCREEN_HAS_PRESSURE FALSE
struct TouchscreenDriver {
/*
* @brief Pointer to SPI driver.
* @note SPI driver must be enabled in mcuconf.h and halconf.h
*/
SPIDriver *spip;
/*
* @brief Pointer to the SPI configuration structure.
* @note The lowest possible speed ~ 1-2MHz is to be used, otherwise
* will result in a lot of noise
*/
const SPIConfig *spicfg;
/*
* @brief Touchscreen controller TPIRQ pin GPIO port
*/
ioportid_t tsIRQPort;
/*
* @brief Touchscreen controller TPIRQ GPIO pin
* @note The interface is polled as of now, interrupt support is
* to be implemented in the future.
*/
ioportmask_t tsIRQPin;
/*
* @brief Initialize the SPI with the configuration struct given or not
* If TRUE, spiStart is called by the init, otherwise not
* @note This is provided in such a case when SPI port is being shared
* across multiple peripherals, so not to disturb the SPI bus.
* You can use TOUCHSCREEN_SPI_PROLOGUE() and TOUCHSCREEN_SPI_EPILOGUE()
* macros to change the SPI configuration or speed before and
* after using the touchpad. An example case would be sharing the
* bus with a fast flash memory chip.
*/
bool_t direct_init;
};
#endif /* GFX_USE_TOUCHSCREEN */
#endif /* TOUCHSCREEN_LLD_CONFIG_H */
/** @} */

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To use this driver:
1. Add in your halconf.h:
a) #define GFX_USE_TOUCHSCREEN TRUE
2. To your makefile add the following lines:
include $(GFXLIB)/drivers/touchscreen/MCU/touchscreen_lld.mk

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@ -1,172 +0,0 @@
/*
ChibiOS/GFX - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX 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.
ChibiOS/GFX 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 <http://www.gnu.org/licenses/>.
*/
/**
* @file drivers/touchscreen/MCU/touchscreen_lld.c
* @brief Touchscreen Driver subsystem low level driver source.
*
* @addtogroup TOUCHSCREEN
* @{
*/
#include "ch.h"
#include "hal.h"
#include "touchscreen.h"
#if GFX_USE_TOUCHSCREEN /*|| defined(__DOXYGEN__)*/
#define ADC_NUM_CHANNELS 2
#define ADC_BUF_DEPTH 1
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
static const TouchscreenDriver *ts;
static const ADCConversionGroup adc_y_config = {
FALSE,
ADC_NUM_CHANNELS,
NULL,
NULL,
0, 0,
0, 0,
ADC_SQR1_NUM_CH(ADC_NUM_CHANNELS),
0,
ADC_SQR3_SQ2_N(ADC_CHANNEL_IN12) | ADC_SQR3_SQ1_N(ADC_CHANNEL_IN13)
};
static const ADCConversionGroup adc_x_config = {
FALSE,
ADC_NUM_CHANNELS,
NULL,
NULL,
0, 0,
0, 0,
ADC_SQR1_NUM_CH(ADC_NUM_CHANNELS),
0,
ADC_SQR3_SQ2_N(ADC_CHANNEL_IN10) | ADC_SQR3_SQ1_N(ADC_CHANNEL_IN11)
};
/**
* @brief Low level Touchscreen driver initialization.
*
* @param[in] ts The touchscreen driver struct
*
* @notapi
*/
void ts_lld_init(const TouchscreenDriver *ts_init) {
ts = ts_init;
adcStart(ts->adc_driver, NULL);
}
/**
* @brief 7-point median filtering code for touchscreen samples
*
* @note This is an internally used routine only.
*
* @notapi
*/
static void ts_lld_filter(void) {
return 0;
}
/**
* @brief Reads out the X direction.
*
* @note The samples are median filtered for greater noise reduction
*
* @notapi
*/
uint16_t ts_lld_read_x(void) {
uint16_t val1, val2;
adcsample_t samples[ADC_NUM_CHANNELS * ADC_BUF_DEPTH];
palSetPadMode(ts->yd_port, ts->yd_pin, PAL_MODE_INPUT_ANALOG);
palSetPadMode(ts->yu_port, ts->yu_pin, PAL_MODE_INPUT_ANALOG);
palSetPadMode(ts->xl_port, ts->xl_pin, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(ts->xr_port, ts->xr_pin, PAL_MODE_OUTPUT_PUSHPULL);
palSetPad(ts->xl_port, ts->xl_pin);
palClearPad(ts->xr_port, ts->xr_pin);
chThdSleepMilliseconds(1);
adcConvert(ts->adc_driver, &adc_x_config, samples, ADC_BUF_DEPTH);
val1 = ((samples[0] + samples[1])/2);
palClearPad(ts->xl_port, ts->xl_pin);
palSetPad(ts->xr_port, ts->xr_pin);
chThdSleepMilliseconds(1);
adcConvert(ts->adc_driver, &adc_x_config, samples, ADC_BUF_DEPTH);
val2 = ((samples[0] + samples[1])/2);
return ((val1+((1<<12)-val2))/4);
}
/**
* @brief Reads out the Y direction.
*
* @notapi
*/
uint16_t ts_lld_read_y(void) {
uint16_t val1, val2;
adcsample_t samples[ADC_NUM_CHANNELS * ADC_BUF_DEPTH];
palSetPadMode(ts->xl_port, ts->xl_pin, PAL_MODE_INPUT_ANALOG);
palSetPadMode(ts->xr_port, ts->xr_pin, PAL_MODE_INPUT_ANALOG);
palSetPadMode(ts->yd_port, ts->yd_pin, PAL_MODE_OUTPUT_PUSHPULL);
palSetPadMode(ts->yu_port, ts->yu_pin, PAL_MODE_OUTPUT_PUSHPULL);
palSetPad(ts->yu_port, ts->yu_pin);
palClearPad(ts->yd_port, ts->yd_pin);
chThdSleepMilliseconds(1);
adcConvert(ts->adc_driver, &adc_y_config, samples, ADC_BUF_DEPTH);
val1 = ((samples[0] + samples[1])/2);
palClearPad(ts->yu_port, ts->yu_pin);
palSetPad(ts->yd_port, ts->yd_pin);
chThdSleepMilliseconds(1);
adcConvert(ts->adc_driver, &adc_y_config, samples, ADC_BUF_DEPTH);
val2 = ((samples[0] + samples[1])/2);
return ((val1+((1<<12)-val2))/4);
}
/*
* @brief Checks if touchscreen is pressed or not.
*
* @return 1 if pressed, 0 otherwise
*
* @notapi
*/
uint8_t ts_lld_pressed(void) {
palSetPadMode(ts->yd_port, ts->yd_pin, PAL_MODE_INPUT_PULLDOWN);
palSetPadMode(ts->yu_port, ts->yu_pin, PAL_MODE_INPUT);
palSetPadMode(ts->xl_port, ts->xl_pin, PAL_MODE_INPUT);
palSetPadMode(ts->xr_port, ts->xr_pin, PAL_MODE_OUTPUT_PUSHPULL);
palSetPad(ts->xr_port, ts->xr_pin);
return palReadPad(ts->yd_port, ts->yd_pin);
}
#endif /* GFX_USE_TOUCHSCREEN */
/** @} */

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# List the required driver.
GFXSRC += $(GFXLIB)/drivers/touchscreen/MCU/touchscreen_lld.c
# Required include directories
GFXINC += $(GFXLIB)/drivers/touchscreen/MCU

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/*
ChibiOS/GFX - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX 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.
ChibiOS/GFX 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 <http://www.gnu.org/licenses/>.
*/
/**
* @file drivers/touchscreen/MCU/touchscreen_lld_config.h
* @brief Touchscreen Driver subsystem low level driver.
*
* @addtogroup TOUCHSCREEN
* @{
*/
#ifndef TOUCHSCREEN_LLD_CONFIG_H
#define TOUCHSCREEN_LLD_CONFIG_H
#if GFX_USE_TOUCHSCREEN /*|| defined(__DOXYGEN__)*/
/*===========================================================================*/
/* Driver hardware support. */
/*===========================================================================*/
#define TOUCHSCREEN_HAS_PRESSED TRUE
#define TOUCHSCREEN_HAS_PRESSURE FALSE
/**
* @brief The touchscreen driver struct
* @details Pointer to this will be passed to tsInit()
*/
struct TouchscreenDriver {
ADCDriver *adc_driver;
ioportid_t yd_port;
ioportmask_t yd_pin;
ioportid_t yu_port;
ioportmask_t yu_pin;
ioportid_t xl_port;
ioportmask_t xl_pin;
ioportid_t xr_port;
ioportmask_t xr_pin;
};
#endif /* GFX_USE_TOUCHSCREEN */
#endif /* TOUCHSCREEN_LLD_CONFIG_H */
/** @} */

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To use this driver:
1. Add in your halconf.h:
a) #define GFX_USE_TOUCHSCREEN TRUE
2. To your makefile add the following lines:
include $(GFXLIB)/drivers/touchscreen/XPT2046/touchscreen_lld.mk

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@ -1,241 +0,0 @@
/*
ChibiOS/GFX - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX 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.
ChibiOS/GFX 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 <http://www.gnu.org/licenses/>.
*/
/**
* @file drivers/touchscreen/XPT2046/touchscreen_lld.c
* @brief Touchscreen Driver subsystem low level driver source.
*
* @addtogroup TOUCHSCREEN
* @{
*/
#include "ch.h"
#include "hal.h"
#include "touchscreen.h"
#if GFX_USE_TOUCHSCREEN /*|| defined(__DOXYGEN__)*/
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
#if !defined(__DOXYGEN__)
/* Local copy of the current touchpad driver */
static const TouchscreenDriver *tsDriver;
static uint16_t sampleBuf[7];
#endif
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/* ---- Required Routines ---- */
/**
* @brief Low level Touchscreen driver initialization.
*
* @param[in] ts The touchscreen driver struct
*
* @notapi
*/
void ts_lld_init(const TouchscreenDriver *ts) {
tsDriver = ts;
if(tsDriver->direct_init)
spiStart(tsDriver->spip, tsDriver->spicfg);
}
/**
* @brief Reads a conversion from the touchscreen
*
* @param[in] cmd The command bits to send to the touchscreen
*
* @return The read value 12-bit right-justified
*
* @note This function only reads data, it is assumed that the pins are
* configured properly and the bus has been acquired beforehand
*
* @notapi
*/
uint16_t ts_lld_read_value(uint8_t cmd) {
static uint8_t txbuf[3] = {0};
static uint8_t rxbuf[3] = {0};
uint16_t ret;
txbuf[0] = cmd;
spiExchange(tsDriver->spip, 3, txbuf, rxbuf);
ret = (rxbuf[1] << 5) | (rxbuf[2] >> 3);
return ret;
}
/**
* @brief 7-point median filtering code for touchscreen samples
*
* @note This is an internally used routine only.
*
* @notapi
*/
static void ts_lld_filter(void) {
uint16_t temp;
int i,j;
for(i = 0; i < 4; i++) {
for(j = i; j < 7; j++) {
if(sampleBuf[i] > sampleBuf[j]) {
/* Swap the values */
temp = sampleBuf[i];
sampleBuf[i] = sampleBuf[j];
sampleBuf[j] = temp;
}
}
}
}
/**
* @brief Reads out the X direction.
*
* @note The samples are median filtered for greater noise reduction
*
* @notapi
*/
uint16_t ts_lld_read_x(void) {
int i;
#if defined(SPI_USE_MUTUAL_EXCLUSION)
spiAcquireBus(tsDriver->spip);
#endif
TOUCHSCREEN_SPI_PROLOGUE();
palClearPad(tsDriver->spicfg->ssport, tsDriver->spicfg->sspad);
/* Discard the first conversion - very noisy and keep the ADC on hereafter
* till we are done with the sampling. Note that PENIRQ is disabled.
*/
ts_lld_read_value(0xD1);
for(i = 0; i < 7; i++) {
sampleBuf[i] = ts_lld_read_value(0xD1);
}
/* Switch on PENIRQ once again - perform a dummy read */
ts_lld_read_value(0xD0);
palSetPad(tsDriver->spicfg->ssport, tsDriver->spicfg->sspad);
TOUCHSCREEN_SPI_EPILOGUE();
#if defined(SPI_USE_MUTUAL_EXCLUSION)
spiReleaseBus(tsDriver->spip);
#endif
/* Find the median - use selection sort */
ts_lld_filter();
return sampleBuf[3];
}
/*
* @brief Reads out the Y direction.
*
* @notapi
*/
uint16_t ts_lld_read_y(void) {
int i;
#if defined(SPI_USE_MUTUAL_EXCLUSION)
spiAcquireBus(tsDriver->spip);
#endif
TOUCHSCREEN_SPI_PROLOGUE();
palClearPad(tsDriver->spicfg->ssport, tsDriver->spicfg->sspad);
/* Discard the first conversion - very noisy and keep the ADC on hereafter
* till we are done with the sampling. Note that PENIRQ is disabled.
*/
ts_lld_read_value(0x91);
for(i = 0; i < 7; i++) {
sampleBuf[i] = ts_lld_read_value(0x91);
}
/* Switch on PENIRQ once again - perform a dummy read */
ts_lld_read_value(0x90);
palSetPad(tsDriver->spicfg->ssport, tsDriver->spicfg->sspad);
TOUCHSCREEN_SPI_EPILOGUE();
#ifdef SPI_USE_MUTUAL_EXCLUSION
spiReleaseBus(tsDriver->spip);
#endif
/* Find the median - use selection sort */
ts_lld_filter();
return sampleBuf[3];
}
/* ---- Optional Routines ---- */
#if TOUCHSCREEN_HAS_PRESSED || defined(__DOXYGEN__)
/*
* @brief for checking if touchscreen is pressed or not.
*
* @return 1 if pressed / 0 if not pressed
*
* @notapi
*/
uint8_t ts_lld_pressed(void) {
return (!palReadPad(tsDriver->tsIRQPort, tsDriver->tsIRQPin));
}
#endif
#if TOUCHSCREEN_HAS_PRESSURE || defined(__DOXYGEN__)
/*
* @brief Reads out the Z direction / pressure.
*
* @notapi
*/
uint16_t ts_lld_read_z(void) {
/* ToDo */
return 42;
}
#endif
#endif /* GFX_USE_TOUCHSCREEN */
/** @} */

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# List the required driver.
GFXSRC += $(GFXLIB)/drivers/touchscreen/XPT2046/touchscreen_lld.c
# Required include directories
GFXINC += $(GFXLIB)/drivers/touchscreen/XPT2046

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@ -1,84 +0,0 @@
/*
ChibiOS/GFX - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX 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.
ChibiOS/GFX 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 <http://www.gnu.org/licenses/>.
*/
/**
* @file drivers/touchscreen/XPT2046/touchscreen_lld_config.h
* @brief Touchscreen Driver subsystem low level driver.
*
* @addtogroup TOUCHSCREEN
* @{
*/
#ifndef TOUCHSCREEN_LLD_CONFIG_H
#define TOUCHSCREEN_LLD_CONFIG_H
#if GFX_USE_TOUCHSCREEN /*|| defined(__DOXYGEN__)*/
/*===========================================================================*/
/* Driver hardware support. */
/*===========================================================================*/
#define TOUCHSCREEN_HAS_PRESSED TRUE
#define TOUCHSCREEN_HAS_PRESSURE TRUE
struct TouchscreenDriver {
/*
* @brief Pointer to SPI driver.
* @note SPI driver must be enabled in mcuconf.h and halconf.h
*/
SPIDriver *spip;
/*
* @brief Pointer to the SPI configuration structure.
* @note The lowest possible speed ~ 1-2MHz is to be used, otherwise
* will result in a lot of noise
*/
const SPIConfig *spicfg;
/*
* @brief Touchscreen controller TPIRQ pin GPIO port
*/
ioportid_t tsIRQPort;
/*
* @brief Touchscreen controller TPIRQ GPIO pin
* @note The interface is polled as of now, interrupt support is
* to be implemented in the future.
*/
ioportmask_t tsIRQPin;
/*
* @brief Initialize the SPI with the configuration struct given or not
* If TRUE, spiStart is called by the init, otherwise not
* @note This is provided in such a case when SPI port is being shared
* across multiple peripherals, so not to disturb the SPI bus.
* You can use TOUCHSCREEN_SPI_PROLOGUE() and TOUCHSCREEN_SPI_EPILOGUE()
* macros to change the SPI configuration or speed before and
* after using the touchpad. An example case would be sharing the
* bus with a fast flash memory chip.
*/
bool_t direct_init;
};
#endif /* GFX_USE_TOUCHSCREEN */
#endif /* TOUCHSCREEN_LLD_CONFIG_H */
/** @} */