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TARGET_NUCLEO_F072RB/TARGET_STM/TARGET_STM32F0/gpio_object.h
- Committer:
- jhon309
- Date:
- 2015-08-20
- Revision:
- 0:666850d06c9f
File content as of revision 0:666850d06c9f:
/* mbed Microcontroller Library ******************************************************************************* * Copyright (c) 2014, STMicroelectronics * All rights reserved. * * 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 of STMicroelectronics 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 HOLDER 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. ******************************************************************************* */ #ifndef MBED_GPIO_OBJECT_H #define MBED_GPIO_OBJECT_H #include "mbed_assert.h" #include "cmsis.h" #include "PortNames.h" #include "PeripheralNames.h" #include "PinNames.h" #ifdef __cplusplus extern "C" { #endif typedef struct { PinName pin; uint32_t mask; __IO uint32_t *reg_in; __IO uint32_t *reg_set; __IO uint32_t *reg_clr; } 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