lvgl_esp32_drivers/lvgl_touch/ft6x36.h

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#ifndef __FT6X06_H
/*
* Copyright © 2020 Wolfgang Christl
2023-08-24 10:45:30 +00:00
* Permission is hereby granted, free of charge, to any person obtaining a copy of this
* software and associated documentation files (the Software), to deal in the Software
* without restriction, including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
* to whom the Software is furnished to do so, subject to the following conditions:
*
2023-08-24 10:45:30 +00:00
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
2023-08-24 10:45:30 +00:00
*
* THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#define __FT6X06_H
#include <stdint.h>
#include <stdbool.h>
#ifdef LV_LVGL_H_INCLUDE_SIMPLE
#include "lvgl.h"
#else
#include "lvgl/lvgl.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define FT6236_I2C_SLAVE_ADDR 0x38
/* Maximum border values of the touchscreen pad that the chip can handle */
#define FT6X36_MAX_WIDTH ((uint16_t)800)
#define FT6X36_MAX_HEIGHT ((uint16_t)480)
/* Max detectable simultaneous touch points */
#define FT6X36_MAX_TOUCH_PNTS 2
/* Register of the current mode */
#define FT6X36_DEV_MODE_REG 0x00
/* Possible modes as of FT6X36_DEV_MODE_REG */
#define FT6X36_DEV_MODE_WORKING 0x00
#define FT6X36_DEV_MODE_FACTORY 0x04
#define FT6X36_DEV_MODE_MASK 0x70
#define FT6X36_DEV_MODE_SHIFT 4
/* Gesture ID register */
#define FT6X36_GEST_ID_REG 0x01
/* Possible values returned by FT6X36_GEST_ID_REG */
#define FT6X36_GEST_ID_NO_GESTURE 0x00
#define FT6X36_GEST_ID_MOVE_UP 0x10
#define FT6X36_GEST_ID_MOVE_RIGHT 0x14
#define FT6X36_GEST_ID_MOVE_DOWN 0x18
#define FT6X36_GEST_ID_MOVE_LEFT 0x1C
#define FT6X36_GEST_ID_ZOOM_IN 0x48
#define FT6X36_GEST_ID_ZOOM_OUT 0x49
/* Status register: stores number of active touch points (0, 1, 2) */
#define FT6X36_TD_STAT_REG 0x02
#define FT6X36_TD_STAT_MASK 0x0F
#define FT6X36_TD_STAT_SHIFT 0x00
/* Touch events */
#define FT6X36_TOUCH_EVT_FLAG_PRESS_DOWN 0x00
#define FT6X36_TOUCH_EVT_FLAG_LIFT_UP 0x01
#define FT6X36_TOUCH_EVT_FLAG_CONTACT 0x02
#define FT6X36_TOUCH_EVT_FLAG_NO_EVENT 0x03
#define FT6X36_TOUCH_EVT_FLAG_SHIFT 6
#define FT6X36_TOUCH_EVT_FLAG_MASK (3 << FT6X36_TOUCH_EVT_FLAG_SHIFT)
#define FT6X36_MSB_MASK 0x0F
#define FT6X36_MSB_SHIFT 0
#define FT6X36_LSB_MASK 0xFF
#define FT6X36_LSB_SHIFT 0
#define FT6X36_P1_XH_REG 0x03
#define FT6X36_P1_XL_REG 0x04
#define FT6X36_P1_YH_REG 0x05
#define FT6X36_P1_YL_REG 0x06
#define FT6X36_P1_WEIGHT_REG 0x07 /* Register reporting touch pressure - read only */
#define FT6X36_TOUCH_WEIGHT_MASK 0xFF
#define FT6X36_TOUCH_WEIGHT_SHIFT 0
#define FT6X36_P1_MISC_REG 0x08 /* Touch area register */
#define FT6X36_TOUCH_AREA_MASK (0x04 << 4) /* Values related to FT6X36_Pn_MISC_REG */
#define FT6X36_TOUCH_AREA_SHIFT 0x04
#define FT6X36_P2_XH_REG 0x09
#define FT6X36_P2_XL_REG 0x0A
#define FT6X36_P2_YH_REG 0x0B
#define FT6X36_P2_YL_REG 0x0C
#define FT6X36_P2_WEIGHT_REG 0x0D
#define FT6X36_P2_MISC_REG 0x0E
/* Threshold for touch detection */
#define FT6X36_TH_GROUP_REG 0x80
#define FT6X36_THRESHOLD_MASK 0xFF /* Values FT6X36_TH_GROUP_REG : threshold related */
#define FT6X36_THRESHOLD_SHIFT 0
#define FT6X36_TH_DIFF_REG 0x85 /* Filter function coefficients */
#define FT6X36_CTRL_REG 0x86 /* Control register */
#define FT6X36_CTRL_KEEP_ACTIVE_MODE 0x00 /* Will keep the Active mode when there is no touching */
#define FT6X36_CTRL_KEEP_AUTO_SWITCH_MONITOR_MODE 0x01 /* Switching from Active mode to Monitor mode automatically when there is no touching */
#define FT6X36_TIME_ENTER_MONITOR_REG 0x87 /* The time period of switching from Active mode to Monitor mode when there is no touching */
#define FT6X36_PERIOD_ACTIVE_REG 0x88 /* Report rate in Active mode */
#define FT6X36_PERIOD_MONITOR_REG 0x89 /* Report rate in Monitor mode */
#define FT6X36_RADIAN_VALUE_REG 0x91 /* The value of the minimum allowed angle while Rotating gesture mode */
#define FT6X36_OFFSET_LEFT_RIGHT_REG 0x92 /* Maximum offset while Moving Left and Moving Right gesture */
#define FT6X36_OFFSET_UP_DOWN_REG 0x93 /* Maximum offset while Moving Up and Moving Down gesture */
#define FT6X36_DISTANCE_LEFT_RIGHT_REG 0x94 /* Minimum distance while Moving Left and Moving Right gesture */
#define FT6X36_DISTANCE_UP_DOWN_REG 0x95 /* Minimum distance while Moving Up and Moving Down gesture */
#define FT6X36_LIB_VER_H_REG 0xA1 /* High 8-bit of LIB Version info */
#define FT6X36_LIB_VER_L_REG 0xA2 /* Low 8-bit of LIB Version info */
#define FT6X36_CHIPSELECT_REG 0xA3 /* 0x36 for ft6236; 0x06 for ft6206 */
#define FT6X36_POWER_MODE_REG 0xA5
#define FT6X36_FIRMWARE_ID_REG 0xA6
#define FT6X36_RELEASECODE_REG 0xAF
#define FT6X36_PANEL_ID_REG 0xA8
#define FT6X36_OPMODE_REG 0xBC
typedef struct {
bool inited;
} ft6x36_status_t;
/**
* @brief Initialize for FT6x36 communication via I2C
* @param dev_addr: Device address on communication Bus (I2C slave address of FT6X36).
* @retval None
*/
void ft6x06_init(uint16_t dev_addr);
uint8_t ft6x36_get_gesture_id();
/**
* @brief Get the touch screen X and Y positions values. Ignores multi touch
* @param drv:
* @param data: Store data here
* @retval Always false
*/
bool ft6x36_read(lv_indev_drv_t *drv, lv_indev_data_t *data);
#ifdef __cplusplus
}
#endif
#endif /* __FT6X06_H */