8 changed files with 399 additions and 12 deletions
@ -0,0 +1,5 @@ |
|||
# List the required driver.
|
|||
GFXSRC += $(GFXLIB)/drivers/ginput/touch/XPT2046/ginput_lld_mouse.c |
|||
|
|||
# Required include directories
|
|||
GFXINC += $(GFXLIB)/drivers/ginput/touchXPT20466 |
@ -0,0 +1,143 @@ |
|||
/*
|
|||
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/ginput/touch/XPT2046/ginput_lld_mouse.c |
|||
* @brief GINPUT Touch low level driver source for the XPT2046. |
|||
* |
|||
* @addtogroup GINPUT_MOUSE |
|||
* @{ |
|||
*/ |
|||
|
|||
#include "ch.h" |
|||
#include "hal.h" |
|||
|
|||
#if (GFX_USE_GINPUT && GINPUT_NEED_MOUSE) /*|| defined(__DOXYGEN__)*/ |
|||
|
|||
#include "gdisp.h" /* for coord_t */ |
|||
#include "gevent.h" |
|||
#include "ginput/ginput_mouse.h" /* for GINPUT_TOUCH_PRESSED */ |
|||
#include "lld/ginput/mouse.h" |
|||
|
|||
#if defined(GINPUT_MOUSE_USE_CUSTOM_BOARD) && GINPUT_MOUSE_USE_CUSTOM_BOARD |
|||
#include "ginput_lld_mouse_board.h" |
|||
#elif defined(BOARD_FIREBULL_STM32_F103) |
|||
#include "ginput_lld_mouse_board_firebull_stm32f103.h" |
|||
#else |
|||
#include "ginput_lld_mouse_board_example.h" |
|||
#endif |
|||
|
|||
static uint16_t sampleBuf[7]; |
|||
static coord_t lastx, lasty; |
|||
|
|||
/**
|
|||
* @brief 7-point median filtering code for touch samples |
|||
* |
|||
* @note This is an internally used routine only. |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static void 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 Initialise the mouse/touch. |
|||
* |
|||
* @notapi |
|||
*/ |
|||
void ginput_lld_mouse_init(void) { |
|||
init_board(); |
|||
} |
|||
|
|||
/**
|
|||
* @brief Read the mouse/touch position. |
|||
* |
|||
* @param[in] pt A pointer to the structure to fill |
|||
* |
|||
* @note For drivers that don't support returning a position |
|||
* when the touch is up (most touch devices), it should |
|||
* return the previous position with the new Z value. |
|||
* The z value is the pressure for those touch devices |
|||
* that support it (-100 to 100 where > 0 is touched) |
|||
* or, 0 or 100 for those drivers that don't. |
|||
* |
|||
* @notapi |
|||
*/ |
|||
void ginput_lld_mouse_get_reading(MouseReading *pt) { |
|||
uint16_t i; |
|||
|
|||
// If touch-off return the previous results
|
|||
if (!getpin_pressed()) { |
|||
pt->x = lastx; |
|||
pt->y = lasty; |
|||
pt->z = 0; |
|||
pt->buttons = 0; |
|||
return; |
|||
} |
|||
|
|||
// Read the port to get the touch settings
|
|||
aquire_bus(); |
|||
|
|||
/* Get the X value
|
|||
* Discard the first conversion - very noisy and keep the ADC on hereafter |
|||
* till we are done with the sampling. Note that PENIRQ is disabled while reading. |
|||
* Finally switch on PENIRQ once again - perform a dummy read. |
|||
* Once we have the readings, find the medium using our filter function |
|||
*/ |
|||
read_value(0xD1); |
|||
for(i = 0; i < 7; i++) |
|||
sampleBuf[i] = read_value(0xD1); |
|||
read_value(0xD0); |
|||
filter(); |
|||
lastx = (coord_t)sampleBuf[3]; |
|||
|
|||
/* Get the Y value using the same process as above */ |
|||
read_value(0x91); |
|||
for(i = 0; i < 7; i++) |
|||
sampleBuf[i] = read_value(0x91); |
|||
read_value(0x90); |
|||
filter(); |
|||
lasty = (coord_t)sampleBuf[3]; |
|||
|
|||
// Release the bus
|
|||
release_bus(); |
|||
|
|||
// Return the results
|
|||
pt->x = lastx; |
|||
pt->y = lasty; |
|||
pt->z = 100; |
|||
pt->buttons = GINPUT_TOUCH_PRESSED; |
|||
} |
|||
|
|||
#endif /* GFX_USE_GINPUT && GINPUT_NEED_MOUSE */ |
|||
/** @} */ |
@ -0,0 +1,87 @@ |
|||
/*
|
|||
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/ginput/touch/XPT2046/ginput_lld_mouse_board_example.h |
|||
* @brief GINPUT Touch low level driver source for the XPT2046 on the example board. |
|||
* |
|||
* @addtogroup GINPUT_MOUSE |
|||
* @{ |
|||
*/ |
|||
|
|||
#ifndef _GINPUT_LLD_MOUSE_BOARD_H |
|||
#define _GINPUT_LLD_MOUSE_BOARD_H |
|||
|
|||
/**
|
|||
* @brief Initialise the board for the touch. |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static __inline void init_board(void) { |
|||
/* Code here */ |
|||
#error "ginputXPT2046: You must supply a definition for init_board for your board" |
|||
} |
|||
|
|||
/**
|
|||
* @brief Check whether the surface is currently touched |
|||
* @return TRUE if the surface is currently touched |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static __inline bool_t getpin_pressed(void) { |
|||
/* Code here */ |
|||
#error "ginputXPT2046: You must supply a definition for getpin_pressed for your board" |
|||
} |
|||
|
|||
/**
|
|||
* @brief Aquire the bus ready for readings |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static __inline void aquire_bus(void) { |
|||
/* Code here */ |
|||
#error "ginputXPT2046: You must supply a definition for aquire_bus for your board" |
|||
} |
|||
|
|||
/**
|
|||
* @brief Release the bus after readings |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static __inline void release_bus(void) { |
|||
/* Code here */ |
|||
#error "ginputXPT2046: You must supply a definition for release_bus for your board" |
|||
} |
|||
|
|||
/**
|
|||
* @brief Read a value from touch controller |
|||
* @return The value read from the controller |
|||
* |
|||
* params[in] port The controller port to read. |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static __inline uint16_t read_value(uint16_t port) { |
|||
/* Code here */ |
|||
#error "ginputXPT2046: You must supply a definition for read_value for your board" |
|||
} |
|||
|
|||
#endif /* _GINPUT_LLD_MOUSE_BOARD_H */ |
|||
/** @} */ |
@ -0,0 +1,102 @@ |
|||
/*
|
|||
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/ginput/touch/XPT2046/ginput_lld_mouse_board_example.h |
|||
* @brief GINPUT Touch low level driver source for the XPT2046 on the example board. |
|||
* |
|||
* @addtogroup GINPUT_MOUSE |
|||
* @{ |
|||
*/ |
|||
|
|||
#ifndef _GINPUT_LLD_MOUSE_BOARD_H |
|||
#define _GINPUT_LLD_MOUSE_BOARD_H |
|||
|
|||
static const SPIConfig spicfg = { |
|||
NULL, |
|||
GPIOC, |
|||
6, |
|||
/* SPI_CR1_BR_2 |*/ SPI_CR1_BR_1 | SPI_CR1_BR_0, |
|||
}; |
|||
|
|||
/**
|
|||
* @brief Initialise the board for the touch. |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static __inline void init_board(void) { |
|||
spiStart(&SPID1, &spicfg); |
|||
} |
|||
|
|||
/**
|
|||
* @brief Check whether the surface is currently touched |
|||
* @return TRUE if the surface is currently touched |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static __inline bool_t getpin_pressed(void) { |
|||
return (!palReadPad(GPIOC, 4)); |
|||
} |
|||
/**
|
|||
* @brief Aquire the bus ready for readings |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static __inline void aquire_bus(void) { |
|||
spiAcquireBus(&SPID1); |
|||
//TOUCHSCREEN_SPI_PROLOGUE();
|
|||
palClearPad(GPIOC, 6); |
|||
} |
|||
|
|||
/**
|
|||
* @brief Release the bus after readings |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static __inline void release_bus(void) { |
|||
palSetPad(GPIOC, 6); |
|||
spiReleaseBus(&SPID1); |
|||
//TOUCHSCREEN_SPI_EPILOGUE();
|
|||
} |
|||
|
|||
/**
|
|||
* @brief Read a value from touch controller |
|||
* @return The value read from the controller |
|||
* |
|||
* params[in] port The controller port to read. |
|||
* |
|||
* @notapi |
|||
*/ |
|||
static __inline uint16_t read_value(uint16_t port) { |
|||
static uint8_t txbuf[3] = {0}; |
|||
static uint8_t rxbuf[3] = {0}; |
|||
uint16_t ret; |
|||
|
|||
txbuf[0] = port; |
|||
|
|||
spiExchange(&SPID1, 3, txbuf, rxbuf); |
|||
|
|||
ret = (rxbuf[1] << 5) | (rxbuf[2] >> 3); |
|||
|
|||
return ret; |
|||
} |
|||
|
|||
#endif /* _GINPUT_LLD_MOUSE_BOARD_H */ |
|||
/** @} */ |
@ -0,0 +1,41 @@ |
|||
/*
|
|||
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/ginput/touch/XPT2046/ginput_lld_mouse_config.h |
|||
* @brief GINPUT LLD header file for mouse/touch driver. |
|||
* |
|||
* @addtogroup GINPUT_LLD_MOUSE |
|||
* @{ |
|||
*/ |
|||
#ifndef _LLD_GINPUT_MOUSE_CONFIG_H |
|||
#define _LLD_GINPUT_MOUSE_CONFIG_H |
|||
|
|||
#define GINPUT_MOUSE_EVENT_TYPE GEVENT_TOUCH |
|||
#define GINPUT_MOUSE_NEED_CALIBRATION TRUE |
|||
#define GINPUT_MOUSE_LLD_CALIBRATION_LOADSAVE FALSE |
|||
#define GINPUT_MOUSE_MAX_CALIBRATION_ERROR 5 |
|||
#define GINPUT_MOUSE_READ_CYCLES 4 |
|||
#define GINPUT_MOUSE_POLL_PERIOD 25 |
|||
#define GINPUT_MOUSE_MAX_CLICK_JITTER 10 |
|||
#define GINPUT_MOUSE_MAX_MOVE_JITTER 2 |
|||
#define GINPUT_MOUSE_CLICK_TIME 500 |
|||
|
|||
#endif /* _LLD_GINPUT_MOUSE_CONFIG_H */ |
|||
/** @} */ |
@ -0,0 +1,9 @@ |
|||
To use this driver: |
|||
|
|||
1. Add in your halconf.h: |
|||
a) #define GFX_USE_GINPUT TRUE |
|||
b) #define GINPUT_NEED_MOUSE TRUE |
|||
|
|||
2. To your makefile add the following lines: |
|||
include $(GFXLIB)/drivers/ginput/touch/XPT2046/ginput_lld.mk |
|||
|
Loading…
Reference in new issue