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targets/TARGET_Freescale/TARGET_K20XX/gpio_object.h
- Committer:
- amithy
- Date:
- 2017-11-09
- Revision:
- 178:c26431f84b0d
- Parent:
- 149:156823d33999
File content as of revision 178:c26431f84b0d:
/* mbed Microcontroller Library * Copyright (c) 2006-2015 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef MBED_GPIO_OBJECT_H #define MBED_GPIO_OBJECT_H #include "mbed_assert.h" #ifdef __cplusplus extern "C" { #endif typedef struct { PinName pin; uint32_t mask; __IO uint32_t *reg_dir; __IO uint32_t *reg_set; __IO uint32_t *reg_clr; __I uint32_t *reg_in; } gpio_t; static inline void gpio_write(gpio_t *obj, int value) { MBED_ASSERT(obj->pin != (PinName)NC); if (value) { *obj->reg_set = obj->mask; } else { *obj->reg_clr = obj->mask; } } static inline int gpio_read(gpio_t *obj) { MBED_ASSERT(obj->pin != (PinName)NC); return ((*obj->reg_in & obj->mask) ? 1 : 0); } static inline int gpio_is_connected(const gpio_t *obj) { return obj->pin != (PinName)NC; } #ifdef __cplusplus } #endif #endif