1 // Copyright 2016-2020 Espressif Systems (Shanghai) PTE LTD 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #pragma once 16 17 #include "touch_element/touch_element.h" 18 #include "touch_element/touch_button.h" 19 #include "touch_element/touch_slider.h" 20 #include "touch_element/touch_matrix.h" 21 22 #ifdef __cplusplus 23 extern "C" { 24 #endif 25 26 #define TE_TAG "Touch Element" 27 #define TE_DEBUG_TAG "Touch Element Debug" 28 #define TE_UNUSED(arg) (void)arg 29 30 #define TE_CHECK(cond, ret_val) ({ \ 31 if (!(cond)) { \ 32 ESP_LOGE(TE_TAG, "%s(%d)", __FUNCTION__, __LINE__); \ 33 return (ret_val); \ 34 } \ 35 }) 36 37 #define TE_CHECK_GOTO(cond, label) ({ \ 38 if (!(cond)) { \ 39 goto label; \ 40 } \ 41 }) 42 43 #define TE_FREE_AND_NULL(ptr) ({ \ 44 free(ptr); \ 45 (ptr) = NULL; \ 46 }) 47 48 #define TE_DEFAULT_THRESHOLD_DIVIDER(obj) ((obj)->global_config->threshold_divider) 49 #define TE_DEFAULT_LONGPRESS_TIME(obj) ((obj)->global_config->default_lp_time) 50 51 typedef enum { 52 TE_STATE_IDLE = 0, 53 TE_STATE_PRESS, 54 TE_STATE_RELEASE, 55 } te_state_t; 56 57 typedef te_state_t te_dev_state_t; 58 typedef touch_elem_type_t te_dev_type_t; 59 60 typedef struct { 61 float sens; //!< Touch channel sensitivity 62 touch_pad_t channel; //!< Touch channel number(index) 63 te_dev_type_t type; //!< Touch channel type TODO: need to refactor as te_class_type_t 64 te_dev_state_t state; //!< Touch channel current state 65 } te_dev_t; 66 67 typedef enum { 68 TE_CLS_TYPE_BUTTON = 0, 69 TE_CLS_TYPE_SLIDER, 70 TE_CLS_TYPE_MATRIX, 71 TE_CLS_TYPE_MAX //TODO: add waterproof class 72 } te_class_type_t; 73 74 typedef struct { 75 touch_elem_handle_t handle; 76 bool (*check_channel) (touch_pad_t); 77 esp_err_t (*set_threshold) (void); 78 void (*process_state) (void); 79 void (*update_state) (touch_pad_t, te_state_t); 80 } te_object_methods_t; 81 82 /* -------------------------------------------- Waterproof basic type --------------------------------------------- */ 83 struct te_waterproof_s { 84 te_dev_t *guard_device; //Waterproof guard channel device 85 touch_elem_handle_t *mask_handle; //Waterproof masked handle array 86 touch_pad_t shield_channel; //Waterproof shield channel 87 bool is_shield_level_set; //Waterproof shield level setting bit 88 }; 89 typedef struct te_waterproof_s* te_waterproof_handle_t; 90 /* -------------------------------------------- Button basic type --------------------------------------------- */ 91 typedef struct { 92 touch_elem_dispatch_t dispatch_method; //Button dispatch method 93 touch_button_callback_t callback; //Button callback routine 94 uint32_t event_mask; //Button subscribed event mask 95 void *arg; //User input argument 96 } te_button_handle_config_t; 97 98 typedef te_state_t te_button_state_t; //TODO: add Long Press state 99 100 struct te_button_s { 101 te_button_handle_config_t *config; //Button configuration 102 te_dev_t *device; //Base device information 103 te_button_state_t current_state; //Button current state 104 te_button_state_t last_state; //Button last state 105 touch_button_event_t event; //Button outside state(for application layer) 106 uint32_t trigger_cnt; //Button long time trigger counter 107 uint32_t trigger_thr; //Button long time trigger counter threshold 108 }; 109 110 typedef struct te_button_s* te_button_handle_t; 111 /* -------------------------------------------- Slider basic type --------------------------------------------- */ 112 typedef struct { 113 touch_elem_dispatch_t dispatch_method; //Slider dispatch method 114 touch_slider_callback_t callback; //Slider callback routine 115 uint32_t event_mask; //Slider subscribed event mask 116 void *arg; //User input argument 117 } te_slider_handle_config_t; 118 119 typedef te_state_t te_slider_state_t; 120 121 struct te_slider_s { 122 te_slider_handle_config_t *config; //Slider configuration 123 te_dev_t **device; //Base device information set 124 te_slider_state_t current_state; //Slider current state 125 te_slider_state_t last_state; //Slider last state 126 touch_slider_event_t event; //Slider outside state(for application layer) 127 float position_scale; //Slider position scale(step size) 128 float *quantify_signal_array; //Slider re-quantization array 129 uint32_t *channel_bcm; //Channel benchmark array 130 uint32_t channel_bcm_update_cnt; //Channel benchmark update counter 131 uint32_t filter_reset_cnt; //Slider reset counter 132 uint32_t last_position; //Slider last position 133 touch_slider_position_t position; //Slider position 134 uint8_t position_range; //Slider position range([0, position_range]) 135 uint8_t channel_sum; //Slider channel sum 136 uint8_t *pos_filter_window; //Slider position moving average filter window 137 uint8_t pos_window_idx; //Slider position moving average filter window index 138 bool is_first_sample; //Slider first time sample record bit 139 }; 140 141 typedef struct te_slider_s* te_slider_handle_t; 142 /* -------------------------------------------- Matrix basic type --------------------------------------------- */ 143 typedef struct { 144 touch_elem_dispatch_t dispatch_method; //Matrix button dispatch method 145 touch_matrix_callback_t callback; //Matrix button callback routine 146 uint32_t event_mask; //Matrix button subscribed event mask 147 void *arg; //User input argument 148 } te_matrix_handle_config_t; 149 150 typedef te_state_t te_matrix_state_t; //TODO: add Long Press state 151 152 struct te_matrix_s { 153 te_matrix_handle_config_t *config; //Matrix button configuration 154 te_dev_t **device; //Base device information 155 te_matrix_state_t current_state; //Matrix button current state 156 te_matrix_state_t last_state; //Matrix button current state 157 touch_matrix_event_t event; //Matrix button outside state(for application layer) 158 uint32_t trigger_cnt; //Matrix button long time trigger counter 159 uint32_t trigger_thr; //Matrix button long time trigger counter threshold 160 touch_matrix_position_t position; //Matrix button position 161 uint8_t x_channel_num; //The number of touch sensor channel in x axis 162 uint8_t y_channel_num; //The number of touch sensor channel in y axis 163 }; 164 165 typedef struct te_matrix_s* te_matrix_handle_t; 166 /* ------------------------------------------------------------------------------------------------------------------ */ 167 168 /* --------------------------------------------- Global system methods ---------------------------------------------- */ 169 uint32_t te_read_smooth_signal(touch_pad_t channel_num); 170 bool te_system_check_state(void); 171 //TODO: Refactor this function with function overload 172 esp_err_t te_dev_init(te_dev_t **device, uint8_t device_num, te_dev_type_t type, const touch_pad_t *channel, const float *sens, float divider); 173 void te_dev_deinit(te_dev_t **device, uint8_t device_num); 174 esp_err_t te_dev_set_threshold(te_dev_t *device); 175 esp_err_t te_event_give(touch_elem_message_t te_message); 176 uint8_t te_get_timer_period(void); 177 void te_object_method_register(te_object_methods_t *object_methods, te_class_type_t object_type); 178 void te_object_method_unregister(te_class_type_t object_type); 179 bool te_object_check_channel(const touch_pad_t *channel_array, uint8_t channel_sum); 180 bool waterproof_check_mask_handle(touch_elem_handle_t te_handle); 181 /* ------------------------------------------------------------------------------------------------------------------ */ 182 183 #ifdef __cplusplus 184 } 185 #endif 186
