106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef _DRIVER_TOUCH_PAD_H_
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#define _DRIVER_TOUCH_PAD_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ETS_RTC_INTR_INUM 19
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typedef enum{
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TOUCH_PAD_NUM0=0, //GPIO4
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TOUCH_PAD_NUM1, //GPIO0
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TOUCH_PAD_NUM2, //GPIO2
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TOUCH_PAD_NUM3, //GPIO15
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TOUCH_PAD_NUM4, //GPIO13
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TOUCH_PAD_NUM5, //GPIO12
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TOUCH_PAD_NUM6, //GPIO14
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TOUCH_PAD_NUM7, //GPIO27
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TOUCH_PAD_NUM8, //GPIO33
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TOUCH_PAD_NUM9, //GPIO32
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TOUCH_PAD_MAX,
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}enum_touch_pad_t;
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typedef struct touch_message{
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enum_touch_pad_t touch_num;
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}touch_message_t;
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typedef void (*touch_event_callback)(touch_message_t touch_mes);
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/**
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* @brief touch module int
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*
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*This function int touch pad module ,enable touch module
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*
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* @return None
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*
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*/
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void touch_module_init();
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/**
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* @brief config touch pad intr callback thresold
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*
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*When you touch the pad ,touch_pad_register reduce .When the touch_pad_register less than threshold
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*will trigger the touch event callback
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*
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* @param[in] touch_num : config touch num
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*
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* @param[in] threshold : interrupt threshold ,When the touch_pad_register less than threshold<EFBFBD><EFBFBD>
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* will trigger the touch event callback.User can use touch_pad_read function
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* to determine the threshold.
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*
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* @return None
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*
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*/
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void touch_pad_config(enum_touch_pad_t touch_num,uint16_t threshold);
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/**
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* @brief register touch pad interrupt occur callback function
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*
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* Use this Function,register interrupt event callback . when touch pad interrupt is triggered , the event callback
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* will give appliacation .touch_event_callback is called by touch interrupt , so the touch_event_callback
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* should be completed in a very short period of time. If you want to deal with a lot of things,Please Creat
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* a task ,and post message from the gpio_event_callback to the task.
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*
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* @param[in] func : the func will be called,when touch interrupt is triggered ,and the param of func is the
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* number of the touch pad num occurs interrupt
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*
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*
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* @return None
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*
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*/
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void touch_module_register_event_callback(touch_event_callback touch_event_cb);
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/**
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* @brief get touch pad touch_pad_register number
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*
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*User can use this function to determine the the interrupt threshold .When you do not touch the
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*pad ,read the touch_pad_read number(NumNotTouch) by the touch_pad_register.When you touch the pad ,read the touch_pad_register
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*number(NumTouch) by the touch_pad_read.Normal NumNotTouch>NumTouch,so you can select a interrupt threshold
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*
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* @param[in] touch_num : touch num
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*
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*
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* @return -1 : the touch num is err
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* Other : the number of the touch_pad_read
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*
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*/
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int32_t touch_pad_read(enum_touch_pad_t touch_num);
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#ifdef __cplusplus
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}
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#endif
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#endif
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