/**************************************************************************** * drivers/input/ft5x06.h * * Copyright (C) 2011-2012 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * References: * "FT5x06", FocalTech Systems Co., Ltd, D-FT5x06-1212-V4.0, Revised * Dec. 18, 2012 * * Some of this driver was developed with input from NXP sample code for * the LPCXpresso-LPC54628 board. That sample code as a compatible BSD * license: * * Copyright (c) 2016, Freescale Semiconductor, Inc. * Copyright 2016-2017 NXP * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /* The FT5x06 Series ICs are single-chip capacitive touch panel controller * ICs with a built-in 8 bit Micro-controller unit (MCU). They adopt the * mutual capacitance approach, which supports true multi-touch capability. * In conjunction with a mutual capacitive touch panel, the FT5x06 have * user-friendly input functions, which can be applied on many portable * devices, such as cellular phones, MIDs, netbook and notebook personal * computers. */ #ifndef __DRIVERS_INPUT_FT5X06_H #define __DRIVERS_INPUT_FT5X06_H /**************************************************************************** * Included Files ****************************************************************************/ /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* WARNING: Some definitions may apply only to the FT5336 */ /* FT5x06 maximum number of simultaneously detected touches. */ #define FT5x06_MAX_TOUCHES (5) /* FT5x06 raw touch data length. */ #define FT5x06_TOUCH_DATA_LEN (0x20) /* FT5x06 register addresses */ #define FT5x06_TOUCH_MODE_REG (0x00) /* Mode register */ #define FT5x06_TOUCH_GESTID_REG (0x01) /* Gesture ID register */ #define FT5x06_TOUCH_STAT_REG (0x02) /* Touch data status */ /* See struct ft5x06_touch_point_s */ #define FT5x06_TH_GROUP_REG (0x80) /* Threshold for touch detection */ #define FT5x06_TH_DIFF_REG (0x85) /* Filter function coefficients */ #define FT5x06_CTRL_REG (0x86) /* Control register */ #define FT5x06_TIMEENTERMONITOR_REG (0x87) /* Time switching Active to Monitor */ #define FT5x06_PERIODACTIVE_REG (0x88) /* Report rate in Active mode */ #define FT5x06_PERIODMONITOR_REG (0x89) /* Report rate in Monitor mode */ #define FT5x06_RADIAN_VALUE_REG (0x91) /* Minimum allowing angle */ #define FT5x06_OFFSET_LEFT_RIGHT_REG (0x92) /* Minimum offset */ #define FT5x06_OFFSET_UP_DOWN_REG (0x93) /* Maximum offset */ #define FT5x06_DISTANCE_LEFT_RIGHT_REG (0x94) /* Minimum distance */ #define FT5x06_DISTANCE_UP_DOWN_REG (0x95) /* Minimum distance */ #define FT5x06_DISTANCE_ZOOM_REG (0x96) /* Maximum distance */ #define FT5x06_LIB_VER_H_REG (0xa1) /* MS LIB version */ #define FT5x06_LIB_VER_L_REG (0xa2) /* LS LIB version */ #define FT5x06_CIPHER_REG (0xa3) /* Chip selecting */ #define FT5x06_GMODE_REG (0xa4) /* Interrupt mode */ #define FT5x06_PWR_MODE_REG (0xa5) /* Power mode */ #define FT5x06_FIRMID_REG (0xa6) /* Firmware version */ #define FT5x06_CHIP_ID_REG (0xa8) /* Chip ID */ #define FT5x06_RELEASE_CODE_ID_REG (0xaf) /* Release code version */ #define FT5x06_STATE_REG (0xbc) /* Current operating mode */ #define FT5x06_TOUCH_DATA_STARTREG (1) /* Address where data begins */ /* Possible values of the DEV_MODE register */ #define FT5x06_DEV_MODE_WORKING (0x00) #define FT5x06_DEV_MODE_FACTORY (0x04) /* Possible values of the GEST_ID register */ #define FT5x06_GEST_ID_NO_GESTURE (0x00) #define FT5x06_GEST_ID_MOVE_UP (0x10) #define FT5x06_GEST_ID_MOVE_RIGHT (0x14) #define FT5x06_GEST_ID_MOVE_DOWN (0x18) #define FT5x06_GEST_ID_MOVE_LEFT (0x1C) #define FT5x06_GEST_ID_SINGLE_CLICK (0x20) #define FT5x06_GEST_ID_DOUBLE_CLICK (0x22) #define FT5x06_GEST_ID_ROTATE_CLOCKWISE (0x28) #define FT5x06_GEST_ID_ROTATE_C_CLOCKWISE (0x29) #define FT5x06_GEST_ID_ZOOM_IN (0x40) #define FT5x06_GEST_ID_ZOOM_OUT (0x49) /* Values related to FT5x06_CTRL_REG */ #define FT5x06_CTRL_KEEP_ACTIVE_MODE (0x00) #define FT5x06_CTRL_KEEP_AUTO_SWITCH_MONITOR_MODE (0x01) /* Possible values of FT5x06_GMODE_REG */ #define FT5x06_G_MODE_INTERRUPT_POLLING (0x00) #define FT5x06_G_MODE_INTERRUPT_TRIGGER (0x01) /* Possible values of FT5x06_CHIP_ID_REG */ #define FT5x06_ID_VALUE (0x51) /* Operations on struct ft5x06_touch_point_s */ #define TOUCH_POINT_GET_EVENT(t) ((t).xh >> 6) #define TOUCH_POINT_GET_ID(t) ((t).yh >> 4) #define TOUCH_POINT_GET_X(t) ((((t).xh & 0x0f) << 8) | (t).xl) #define TOUCH_POINT_GET_Y(t) ((((t).yh & 0x0f) << 8) | (t).yl) /**************************************************************************** * Public Types ****************************************************************************/ enum touch_event_e { FT5x06_DOWN = 0, /* The state changed to touched */ FT5x06_UP = 1, /* The state changed to not touched */ FT5x06_CONTACT = 2, /* There is a continuous touch being detected */ FT5x06_INVALID = 3 /* No touch information available */ }; /* Describes on touchpoint returned by the FT5x06 */ struct ft5x06_touch_point_s { uint8_t xh; uint8_t xl; uint8_t yh; uint8_t yl; uint8_t weight; uint8_t area; }; /* Describes all touch data returned by the FT5x06 */ struct ft5x06_touch_data_s { uint8_t gestid; /* Gesture ID */ uint8_t tdstatus; /* Touch status */ struct ft5x06_touch_point_s touch[FT5x06_MAX_TOUCHES]; }; /**************************************************************************** * Public Function Prototypes ****************************************************************************/ #ifdef __cplusplus #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif #undef EXTERN #ifdef __cplusplus } #endif #endif /* __DRIVERS_INPUT_FT5X06_H */