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TARGET_NUCLEO_L073RZ/TARGET_STM/gpio_object.h@157:e7ca05fa8600, 2017-11-09 (annotated)

Committer:: AnnaBridge
Date:: Thu Nov 09 11:14:10 2017 +0000
Revision:: 157:e7ca05fa8600
Parent:: 156:ff21514d8981

Release 155 of the mbed library.

Who changed what in which revision?

User	Revision	Line number	New contents of line
AnnaBridge	156:ff21514d8981	1	/* mbed Microcontroller Library
AnnaBridge	156:ff21514d8981	2	*******************************************************************************
AnnaBridge	156:ff21514d8981	3	* Copyright (c) 2016, STMicroelectronics
AnnaBridge	156:ff21514d8981	4	* All rights reserved.
AnnaBridge	156:ff21514d8981	5	*
AnnaBridge	156:ff21514d8981	6	* Redistribution and use in source and binary forms, with or without
AnnaBridge	156:ff21514d8981	7	* modification, are permitted provided that the following conditions are met:
AnnaBridge	156:ff21514d8981	8	*
AnnaBridge	156:ff21514d8981	9	* 1. Redistributions of source code must retain the above copyright notice,
AnnaBridge	156:ff21514d8981	10	* this list of conditions and the following disclaimer.
AnnaBridge	156:ff21514d8981	11	* 2. Redistributions in binary form must reproduce the above copyright notice,
AnnaBridge	156:ff21514d8981	12	* this list of conditions and the following disclaimer in the documentation
AnnaBridge	156:ff21514d8981	13	* and/or other materials provided with the distribution.
AnnaBridge	156:ff21514d8981	14	* 3. Neither the name of STMicroelectronics nor the names of its contributors
AnnaBridge	156:ff21514d8981	15	* may be used to endorse or promote products derived from this software
AnnaBridge	156:ff21514d8981	16	* without specific prior written permission.
AnnaBridge	156:ff21514d8981	17	*
AnnaBridge	156:ff21514d8981	18	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge	156:ff21514d8981	19	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge	156:ff21514d8981	20	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge	156:ff21514d8981	21	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
AnnaBridge	156:ff21514d8981	22	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
AnnaBridge	156:ff21514d8981	23	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
AnnaBridge	156:ff21514d8981	24	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
AnnaBridge	156:ff21514d8981	25	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
AnnaBridge	156:ff21514d8981	26	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
AnnaBridge	156:ff21514d8981	27	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge	156:ff21514d8981	28	*******************************************************************************
AnnaBridge	156:ff21514d8981	29	*/
AnnaBridge	156:ff21514d8981	30	#ifndef MBED_GPIO_OBJECT_H
AnnaBridge	156:ff21514d8981	31	#define MBED_GPIO_OBJECT_H
AnnaBridge	156:ff21514d8981	32
AnnaBridge	156:ff21514d8981	33	#include "mbed_assert.h"
AnnaBridge	156:ff21514d8981	34	#include "cmsis.h"
AnnaBridge	156:ff21514d8981	35	#include "PortNames.h"
AnnaBridge	156:ff21514d8981	36	#include "PeripheralNames.h"
AnnaBridge	156:ff21514d8981	37	#include "PinNames.h"
AnnaBridge	156:ff21514d8981	38
AnnaBridge	156:ff21514d8981	39	#ifdef __cplusplus
AnnaBridge	156:ff21514d8981	40	extern "C" {
AnnaBridge	156:ff21514d8981	41	#endif
AnnaBridge	156:ff21514d8981	42
AnnaBridge	156:ff21514d8981	43	/*
AnnaBridge	156:ff21514d8981	44	* Note: reg_clr might actually be same as reg_set.
AnnaBridge	156:ff21514d8981	45	* Depends on family whether BRR is available on top of BSRR
AnnaBridge	156:ff21514d8981	46	* if BRR does not exist, family shall define GPIO_IP_WITHOUT_BRR
AnnaBridge	156:ff21514d8981	47	*/
AnnaBridge	156:ff21514d8981	48	typedef struct {
AnnaBridge	156:ff21514d8981	49	uint32_t mask;
AnnaBridge	156:ff21514d8981	50	__IO uint32_t *reg_in;
AnnaBridge	156:ff21514d8981	51	__IO uint32_t *reg_set;
AnnaBridge	156:ff21514d8981	52	__IO uint32_t *reg_clr;
AnnaBridge	156:ff21514d8981	53	PinName pin;
AnnaBridge	156:ff21514d8981	54	GPIO_TypeDef *gpio;
AnnaBridge	156:ff21514d8981	55	uint32_t ll_pin;
AnnaBridge	156:ff21514d8981	56	} gpio_t;
AnnaBridge	156:ff21514d8981	57
AnnaBridge	156:ff21514d8981	58	static inline void gpio_write(gpio_t *obj, int value)
AnnaBridge	156:ff21514d8981	59	{
AnnaBridge	156:ff21514d8981	60	if (value) {
AnnaBridge	156:ff21514d8981	61	*obj->reg_set = obj->mask;
AnnaBridge	156:ff21514d8981	62	} else {
AnnaBridge	156:ff21514d8981	63	#ifdef GPIO_IP_WITHOUT_BRR
AnnaBridge	156:ff21514d8981	64	*obj->reg_clr = obj->mask << 16;
AnnaBridge	156:ff21514d8981	65	#else
AnnaBridge	156:ff21514d8981	66	*obj->reg_clr = obj->mask;
AnnaBridge	156:ff21514d8981	67	#endif
AnnaBridge	156:ff21514d8981	68	}
AnnaBridge	156:ff21514d8981	69	}
AnnaBridge	156:ff21514d8981	70
AnnaBridge	156:ff21514d8981	71	static inline int gpio_read(gpio_t *obj)
AnnaBridge	156:ff21514d8981	72	{
AnnaBridge	156:ff21514d8981	73	return ((*obj->reg_in & obj->mask) ? 1 : 0);
AnnaBridge	156:ff21514d8981	74	}
AnnaBridge	156:ff21514d8981	75
AnnaBridge	156:ff21514d8981	76	static inline int gpio_is_connected(const gpio_t *obj)
AnnaBridge	156:ff21514d8981	77	{
AnnaBridge	156:ff21514d8981	78	return obj->pin != (PinName)NC;
AnnaBridge	156:ff21514d8981	79	}
AnnaBridge	156:ff21514d8981	80
AnnaBridge	156:ff21514d8981	81
AnnaBridge	156:ff21514d8981	82	#ifdef __cplusplus
AnnaBridge	156:ff21514d8981	83	}
AnnaBridge	156:ff21514d8981	84	#endif
AnnaBridge	156:ff21514d8981	85
AnnaBridge	156:ff21514d8981	86	#endif