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Format library
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‎src/Arduino_GigaDisplayTouch.h

Lines changed: 76 additions & 75 deletions
Original file line numberDiff line numberDiff line change
@@ -21,25 +21,25 @@
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* @author Leonardo Cavagnis
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* @brief Header file for the Arduino Giga Display Touch library.
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*
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* This library allows to capture up to 5 concurrent touch points on Arduino Giga Display Shield.
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* Supported controller: Goodix GT911
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* This library allows to capture up to 5 concurrent touch points on Arduino
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* Giga Display Shield. Supported controller: Goodix GT911
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*/
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#ifndef __ARDUINO_GIGADISPLAYTOUCH_H
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#define __ARDUINO_GIGADISPLAYTOUCH_H
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/* Includes ------------------------------------------------------------------*/
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#include <Arduino.h>
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#include "Wire.h"
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#include "mbed.h"
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#include "pinDefinitions.h"
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#include <Arduino.h>
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/* Exported defines ----------------------------------------------------------*/
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#define GT911_I2C_ADDR_BA_BB (0x5D | 0x80) // 0xBA/0xBB - 0x5D (7bit address)
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#define GT911_I2C_ADDR_28_29 (0x14 | 0x80) // 0x28/0x29 - 0x14 (7bit address)
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#define GT911_I2C_ADDR_BA_BB (0x5D | 0x80) // 0xBA/0xBB - 0x5D (7bit address)
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#define GT911_I2C_ADDR_28_29 (0x14 | 0x80) // 0x28/0x29 - 0x14 (7bit address)
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41-
#define GT911_CONTACT_SIZE 8
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#define GT911_MAX_CONTACTS 5
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#define GT911_CONTACT_SIZE 8
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#define GT911_MAX_CONTACTS 5
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/* Exported types ------------------------------------------------------------*/
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typedef struct GDTpoint_s GDTpoint_t;
@@ -52,87 +52,88 @@ typedef struct GDTpoint_s GDTpoint_t;
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* @brief Struct representing a touch point.
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*/
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struct GDTpoint_s {
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// 0x814F-0x8156, ... 0x8176 (5 points)
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// 0x814F-0x8156, ... 0x8176 (5 points)
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uint8_t trackId;
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uint16_t x;
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uint16_t y;
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uint16_t area;
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uint8_t reserved;
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};
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63-
/* Class ----------------------------------------------------------------------*/
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/* Class
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* ----------------------------------------------------------------------*/
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/**
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* @class Arduino_GigaDisplayTouch
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* @brief Class for Giga Display Touch controller driver.
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*/
6970
class Arduino_GigaDisplayTouch {
70-
public:
71-
/**
72-
* @brief Construct a new touch controller for Giga Display Shield.
73-
*
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* @param wire A reference to the Wire interface to be used for communication with the touch controller.
75-
* @param intPin The interrupt pin number for the touch controller.
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* @param rstPin The reset pin number for the touch controller.
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* @param addr The device address for the touch controller.
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*/
79-
#if defined(ARDUINO_GIGA)
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Arduino_GigaDisplayTouch(TwoWire& wire = Wire1,
81-
uint8_t intPin = PinNameToIndex(PI_1),
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uint8_t rstPin = PinNameToIndex(PI_2),
83-
uint8_t addr = GT911_I2C_ADDR_BA_BB);
84-
#elif defined(ARDUINO_PORTENTA_H7_M7)
85-
Arduino_GigaDisplayTouch(TwoWire& wire = Wire,
86-
uint8_t intPin = PinNameToIndex(PD_4),
87-
uint8_t rstPin = PinNameToIndex(PD_5),
88-
uint8_t addr = GT911_I2C_ADDR_BA_BB);
89-
#else
90-
Arduino_GigaDisplayTouch(TwoWire& wire,
91-
uint8_t intPin,
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uint8_t rstPin,
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uint8_t addr);
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#endif
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~Arduino_GigaDisplayTouch();
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/**
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* @brief Initialize the touch controller.
100-
*
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* @return true If the touch controller is successfully initialized, false Otherwise
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*/
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bool begin();
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/**
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* @brief De-initialize the touch controller.
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*/
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void end();
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/**
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* @brief Check if a touch event is detected and get the touch points.
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* @param points The array containing the coordinates of the touch points.
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* @return uint8_t The number of detected touch points.
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*/
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uint8_t getTouchPoints(GDTpoint_t* points);
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117-
/**
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* @brief Attach an interrupt handler function for touch detection callbacks.
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* @param handler The pointer to the user-defined handler function.
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*/
121-
void onDetect(void (*handler)(uint8_t, GDTpoint_t*));
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private:
123-
TwoWire& _wire;
124-
uint8_t _intPin;
125-
mbed::InterruptIn _irqInt;
126-
uint8_t _rstPin;
127-
uint8_t _addr;
128-
GDTpoint_t _points[GT911_MAX_CONTACTS];
129-
void (*_gt911TouchHandler)(uint8_t, GDTpoint_t*);
130-
131-
uint8_t _gt911WriteOp(uint16_t reg, uint8_t data);
132-
uint8_t _gt911WriteBytesOp(uint16_t reg, uint8_t * data, uint8_t len);
133-
uint8_t _gt911ReadOp(uint16_t reg, uint8_t * data, uint8_t len);
134-
void _gt911onIrq();
135-
uint8_t _gt911ReadInputCoord(uint8_t * pointsbuf, uint8_t& contacts);
71+
public:
72+
/**
73+
* @brief Construct a new touch controller for Giga Display Shield.
74+
*
75+
* @param wire A reference to the Wire interface to be used for communication
76+
* with the touch controller.
77+
* @param intPin The interrupt pin number for the touch controller.
78+
* @param rstPin The reset pin number for the touch controller.
79+
* @param addr The device address for the touch controller.
80+
*/
81+
#if defined(ARDUINO_GIGA)
82+
Arduino_GigaDisplayTouch(TwoWire &wire = Wire1,
83+
uint8_t intPin = PinNameToIndex(PI_1),
84+
uint8_t rstPin = PinNameToIndex(PI_2),
85+
uint8_t addr = GT911_I2C_ADDR_BA_BB);
86+
#elif defined(ARDUINO_PORTENTA_H7_M7)
87+
Arduino_GigaDisplayTouch(TwoWire &wire = Wire,
88+
uint8_t intPin = PinNameToIndex(PD_4),
89+
uint8_t rstPin = PinNameToIndex(PD_5),
90+
uint8_t addr = GT911_I2C_ADDR_BA_BB);
91+
#else
92+
Arduino_GigaDisplayTouch(TwoWire &wire, uint8_t intPin, uint8_t rstPin,
93+
uint8_t addr);
94+
#endif
95+
~Arduino_GigaDisplayTouch();
96+
97+
/**
98+
* @brief Initialize the touch controller.
99+
*
100+
* @return true If the touch controller is successfully initialized, false
101+
* Otherwise
102+
*/
103+
bool begin();
104+
105+
/**
106+
* @brief De-initialize the touch controller.
107+
*/
108+
void end();
109+
110+
/**
111+
* @brief Check if a touch event is detected and get the touch points.
112+
* @param points The array containing the coordinates of the touch points.
113+
* @return uint8_t The number of detected touch points.
114+
*/
115+
uint8_t getTouchPoints(GDTpoint_t *points);
116+
117+
/**
118+
* @brief Attach an interrupt handler function for touch detection callbacks.
119+
* @param handler The pointer to the user-defined handler function.
120+
*/
121+
void onDetect(void (*handler)(uint8_t, GDTpoint_t *));
122+
123+
private:
124+
TwoWire &_wire;
125+
uint8_t _intPin;
126+
mbed::InterruptIn _irqInt;
127+
uint8_t _rstPin;
128+
uint8_t _addr;
129+
GDTpoint_t _points[GT911_MAX_CONTACTS];
130+
void (*_gt911TouchHandler)(uint8_t, GDTpoint_t *);
131+
132+
uint8_t _gt911WriteOp(uint16_t reg, uint8_t data);
133+
uint8_t _gt911WriteBytesOp(uint16_t reg, uint8_t *data, uint8_t len);
134+
uint8_t _gt911ReadOp(uint16_t reg, uint8_t *data, uint8_t len);
135+
void _gt911onIrq();
136+
uint8_t _gt911ReadInputCoord(uint8_t *pointsbuf, uint8_t &contacts);
136137
};
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#endif /* __ARDUINO_GIGADISPLAYTOUCH_H */

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