#ifndef __FT6X06_H /* * Copyright © 2020 Wolfgang Christl * 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: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * 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 #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 */