933bc5fb97
- Created driver subprojects: `FT5x06`, `FT6x36`, `CST816S`. - Refactored existing projects to use new drivers. - Improve `PwmBacklight` driver: expose frequency, channel id and timer id - Update `build-and-release-all.sh` for recent board addition
184 lines
5.4 KiB
C++
184 lines
5.4 KiB
C++
#include <cstdio>
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#include <cstdlib>
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#include "driver/gpio.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/semphr.h"
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#include "esp_log.h"
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#include "driver/i2c.h"
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#include "sdkconfig.h"
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#include <esp_timer.h>
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#ifndef ft6x36_h
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#define ft6x36_h
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// I2C Constants
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#define I2C_MASTER_TX_BUF_DISABLE 0 /*!< I2C master doesn't need buffer */
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#define I2C_MASTER_RX_BUF_DISABLE 0 /*!< I2C master doesn't need buffer */
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#define ACK_CHECK_EN 0x1 /*!< I2C master will check ack from slave*/
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#define ACK_CHECK_DIS 0x0 /*!< I2C master will not check ack from slave */
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#define ACK_VAL 0x0 /*!< I2C ack value */
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#define NACK_VAL 0x1 /*!< I2C nack value */
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//SemaphoreHandle_t print_mux = NULL;
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#define FT6X36_ADDR 0x38
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#define FT6X36_REG_DEVICE_MODE 0x00
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#define FT6X36_REG_GESTURE_ID 0x01
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#define FT6X36_REG_NUM_TOUCHES 0x02
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#define FT6X36_REG_P1_XH 0x03
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#define FT6X36_REG_P1_XL 0x04
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#define FT6X36_REG_P1_YH 0x05
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#define FT6X36_REG_P1_YL 0x06
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#define FT6X36_REG_P1_WEIGHT 0x07
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#define FT6X36_REG_P1_MISC 0x08
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#define FT6X36_REG_P2_XH 0x09
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#define FT6X36_REG_P2_XL 0x0A
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#define FT6X36_REG_P2_YH 0x0B
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#define FT6X36_REG_P2_YL 0x0C
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#define FT6X36_REG_P2_WEIGHT 0x0D
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#define FT6X36_REG_P2_MISC 0x0E
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#define FT6X36_REG_THRESHHOLD 0x80
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#define FT6X36_REG_FILTER_COEF 0x85
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#define FT6X36_REG_CTRL 0x86
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#define FT6X36_REG_TIME_ENTER_MONITOR 0x87
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#define FT6X36_REG_TOUCHRATE_ACTIVE 0x88
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#define FT6X36_REG_TOUCHRATE_MONITOR 0x89 // value in ms
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#define FT6X36_REG_RADIAN_VALUE 0x91
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#define FT6X36_REG_OFFSET_LEFT_RIGHT 0x92
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#define FT6X36_REG_OFFSET_UP_DOWN 0x93
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#define FT6X36_REG_DISTANCE_LEFT_RIGHT 0x94
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#define FT6X36_REG_DISTANCE_UP_DOWN 0x95
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#define FT6X36_REG_DISTANCE_ZOOM 0x96
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#define FT6X36_REG_LIB_VERSION_H 0xA1
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#define FT6X36_REG_LIB_VERSION_L 0xA2
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#define FT6X36_REG_CHIPID 0xA3
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#define FT6X36_REG_INTERRUPT_MODE 0xA4
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#define FT6X36_REG_POWER_MODE 0xA5
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#define FT6X36_REG_FIRMWARE_VERSION 0xA6
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#define FT6X36_REG_PANEL_ID 0xA8
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#define FT6X36_REG_STATE 0xBC
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#define FT6X36_PMODE_ACTIVE 0x00
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#define FT6X36_PMODE_MONITOR 0x01
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#define FT6X36_PMODE_STANDBY 0x02
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#define FT6X36_PMODE_HIBERNATE 0x03
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/* Possible values returned by FT6X36_GEST_ID_REG */
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#define FT6X36_GEST_ID_NO_GESTURE 0x00
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#define FT6X36_GEST_ID_MOVE_UP 0x10
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#define FT6X36_GEST_ID_MOVE_RIGHT 0x14
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#define FT6X36_GEST_ID_MOVE_DOWN 0x18
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#define FT6X36_GEST_ID_MOVE_LEFT 0x1C
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#define FT6X36_GEST_ID_ZOOM_IN 0x48
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#define FT6X36_GEST_ID_ZOOM_OUT 0x49
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#define FT6X36_VENDID 0x11
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#define FT6206_CHIPID 0x06
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#define FT6236_CHIPID 0x36
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#define FT6336_CHIPID 0x64
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#define FT6X36_DEFAULT_THRESHOLD 22
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// From: https://github.com/lvgl/lv_port_esp32/blob/master/components/lvgl_esp32_drivers/lvgl_touch/ft6x36.h
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#define FT6X36_MSB_MASK 0x0F
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#define FT6X36_LSB_MASK 0xFF
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enum class TRawEvent
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{
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PressDown,
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LiftUp,
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Contact,
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NoEvent
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};
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enum class TEvent
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{
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None,
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TouchStart,
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TouchMove,
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TouchEnd,
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Tap,
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DragStart,
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DragMove,
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DragEnd
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};
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struct TPoint
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{
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uint16_t x;
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uint16_t y;
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/**
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* This is being used in the original library but I'm not using it in this implementation
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*/
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bool aboutEqual(const TPoint point)
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{
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return abs(x - point.x) <= 5 && abs(y - point.y) <= 5;
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}
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};
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class FT6X36
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{
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static void IRAM_ATTR isr(void* arg);
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public:
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// TwoWire * wire will be replaced by ESP-IDF https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/i2c.html
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FT6X36(i2c_port_t = I2C_NUM_0, gpio_num_t interruptPin = GPIO_NUM_NC);
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~FT6X36();
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bool begin(uint8_t threshold = FT6X36_DEFAULT_THRESHOLD, uint16_t width = 0, uint16_t height = 0);
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void registerTouchHandler(void(*fn)(TPoint point, TEvent e));
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uint8_t touched();
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void loop();
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void processTouch();
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void debugInfo();
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void poll(TPoint * point, TEvent * event);
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// Helper functions to make the touch display aware
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void setRotation(uint8_t rotation);
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void setTouchWidth(uint16_t width);
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void setTouchHeight(uint16_t height);
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// Pending implementation. How much x->touch y↓touch is placed (In case is smaller than display)
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void setXoffset(uint16_t x_offset);
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void setYoffset(uint16_t y_offset);
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// Smart template from EPD to swap x,y:
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template <typename T> static inline void
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swap(T& a, T& b)
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{
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T t = a;
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a = b;
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b = t;
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}
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void(*_touchHandler)(TPoint point, TEvent e) = nullptr;
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bool readData(void);
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private:
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void writeRegister8(uint8_t reg, uint8_t val);
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uint8_t readRegister8(uint8_t reg, uint8_t *data_buf);
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void fireEvent(TPoint point, TEvent e);
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uint8_t read8(uint8_t regName);
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static FT6X36 * _instance;
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i2c_port_t _port;
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int8_t _intPin;
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// Make touch rotation aware:
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uint8_t _rotation = 0;
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uint16_t _touch_width = 0;
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uint16_t _touch_height = 0;
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uint8_t _touches;
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uint16_t _touchX[2], _touchY[2], _touchEvent[2];
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TPoint _points[10];
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uint8_t _pointIdx = 0;
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unsigned long _touchStartTime = 0;
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unsigned long _touchEndTime = 0;
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uint8_t lastEvent = 3; // No event
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uint16_t lastX = 0;
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uint16_t lastY = 0;
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bool _dragMode = false;
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const uint8_t maxDeviation = 5;
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};
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#endif |