The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Dependents: hello SerialTestv11 SerialTestv12 Sierpinski ... more
mbed 2
This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.
Diff: TARGET_NUCLEO_F413ZH/TARGET_STM/gpio_object.h
- Revision:
- 160:5571c4ff569f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_NUCLEO_F413ZH/TARGET_STM/gpio_object.h Wed Jan 17 16:13:02 2018 +0000 @@ -0,0 +1,86 @@ +/* mbed Microcontroller Library + ******************************************************************************* + * Copyright (c) 2016, 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 + +/* + * Note: reg_clr might actually be same as reg_set. + * Depends on family whether BRR is available on top of BSRR + * if BRR does not exist, family shall define GPIO_IP_WITHOUT_BRR + */ +typedef struct { + uint32_t mask; + __IO uint32_t *reg_in; + __IO uint32_t *reg_set; + __IO uint32_t *reg_clr; + PinName pin; + GPIO_TypeDef *gpio; + uint32_t ll_pin; +} gpio_t; + +static inline void gpio_write(gpio_t *obj, int value) +{ + if (value) { + *obj->reg_set = obj->mask; + } else { +#ifdef GPIO_IP_WITHOUT_BRR + *obj->reg_clr = obj->mask << 16; +#else + *obj->reg_clr = obj->mask; +#endif + } +} + +static inline int gpio_read(gpio_t *obj) +{ + 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