1 /* 2 * Copyright (c) 2021 Bestechnic (Shanghai) Co., Ltd. All rights reserved. 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 #ifndef __HAL_GPIO_H__ 16 #define __HAL_GPIO_H__ 17 18 #ifdef __cplusplus 19 extern "C" { 20 #endif 21 22 #include "plat_types.h" 23 #include "hal_iomux.h" 24 25 enum HAL_GPIO_DIR_T { 26 HAL_GPIO_DIR_IN = 0, 27 HAL_GPIO_DIR_OUT = 1, 28 }; 29 30 enum HAL_GPIO_IRQ_TYPE_T { 31 HAL_GPIO_IRQ_TYPE_LEVEL_SENSITIVE = 0, 32 HAL_GPIO_IRQ_TYPE_EDGE_SENSITIVE, 33 }; 34 35 enum HAL_GPIO_IRQ_POLARITY_T { 36 HAL_GPIO_IRQ_POLARITY_LOW_FALLING = 0, 37 HAL_GPIO_IRQ_POLARITY_HIGH_RISING, 38 }; 39 40 typedef void (* HAL_GPIO_PIN_IRQ_HANDLER)(enum HAL_GPIO_PIN_T pin); 41 42 struct HAL_GPIO_IRQ_CFG_T { 43 uint8_t irq_enable:1; 44 uint8_t irq_debounce:1; 45 enum HAL_GPIO_IRQ_TYPE_T irq_type; 46 enum HAL_GPIO_IRQ_POLARITY_T irq_polarity; 47 HAL_GPIO_PIN_IRQ_HANDLER irq_handler; 48 }; 49 50 enum HAL_GPIO_DIR_T hal_gpio_pin_get_dir(enum HAL_GPIO_PIN_T pin); 51 void hal_gpio_pin_set_dir(enum HAL_GPIO_PIN_T pin, enum HAL_GPIO_DIR_T dir, uint8_t val_for_out); 52 void hal_gpio_pin_set(enum HAL_GPIO_PIN_T pin); 53 void hal_gpio_pin_clr(enum HAL_GPIO_PIN_T pin); 54 uint8_t hal_gpio_pin_get_val(enum HAL_GPIO_PIN_T pin); 55 uint8_t hal_gpio_setup_irq(enum HAL_GPIO_PIN_T pin, const struct HAL_GPIO_IRQ_CFG_T *cfg); 56 57 #ifdef __cplusplus 58 } 59 #endif 60 61 #endif 62