RYUICHI NAKAYAMA / mbed-dev

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targets/hal/TARGET_STM/TARGET_STM32F0/gpio_object.h@144:423e1876dc07, 2016-08-02 (annotated)

Committer:
screamer
Date:
Tue Aug 02 14:07:36 2016 +0000
Revision:
144:423e1876dc07
Parent:
0:9b334a45a8ff 
Added targets.json file for the supported targets in the release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 *******************************************************************************
bogdanm 0:9b334a45a8ff 3 * Copyright (c) 2014, STMicroelectronics
bogdanm 0:9b334a45a8ff 4 * All rights reserved.
bogdanm 0:9b334a45a8ff 5 *
bogdanm 0:9b334a45a8ff 6 * Redistribution and use in source and binary forms, with or without
bogdanm 0:9b334a45a8ff 7 * modification, are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 8 *
bogdanm 0:9b334a45a8ff 9 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 10 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 12 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 13 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 15 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 16 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 17 *
bogdanm 0:9b334a45a8ff 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 28 *******************************************************************************
bogdanm 0:9b334a45a8ff 29 */
bogdanm 0:9b334a45a8ff 30 #ifndef MBED_GPIO_OBJECT_H
bogdanm 0:9b334a45a8ff 31 #define MBED_GPIO_OBJECT_H
bogdanm 0:9b334a45a8ff 32
bogdanm 0:9b334a45a8ff 33 #include "mbed_assert.h"
bogdanm 0:9b334a45a8ff 34 #include "cmsis.h"
bogdanm 0:9b334a45a8ff 35 #include "PortNames.h"
bogdanm 0:9b334a45a8ff 36 #include "PeripheralNames.h"
bogdanm 0:9b334a45a8ff 37 #include "PinNames.h"
bogdanm 0:9b334a45a8ff 38
bogdanm 0:9b334a45a8ff 39 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 40 extern "C" {
bogdanm 0:9b334a45a8ff 41 #endif
bogdanm 0:9b334a45a8ff 42
bogdanm 0:9b334a45a8ff 43 typedef struct {
bogdanm 0:9b334a45a8ff 44 PinName pin;
bogdanm 0:9b334a45a8ff 45 uint32_t mask;
bogdanm 0:9b334a45a8ff 46 __IO uint32_t *reg_in;
bogdanm 0:9b334a45a8ff 47 __IO uint32_t *reg_set;
bogdanm 0:9b334a45a8ff 48 __IO uint32_t *reg_clr;
bogdanm 0:9b334a45a8ff 49 } gpio_t;
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 static inline void gpio_write(gpio_t *obj, int value)
bogdanm 0:9b334a45a8ff 52 {
bogdanm 0:9b334a45a8ff 53 MBED_ASSERT(obj->pin != (PinName)NC);
bogdanm 0:9b334a45a8ff 54 if (value) {
bogdanm 0:9b334a45a8ff 55 *obj->reg_set = obj->mask;
bogdanm 0:9b334a45a8ff 56 } else {
bogdanm 0:9b334a45a8ff 57 *obj->reg_clr = obj->mask;
bogdanm 0:9b334a45a8ff 58 }
bogdanm 0:9b334a45a8ff 59 }
bogdanm 0:9b334a45a8ff 60
bogdanm 0:9b334a45a8ff 61 static inline int gpio_read(gpio_t *obj)
bogdanm 0:9b334a45a8ff 62 {
bogdanm 0:9b334a45a8ff 63 MBED_ASSERT(obj->pin != (PinName)NC);
bogdanm 0:9b334a45a8ff 64 return ((*obj->reg_in & obj->mask) ? 1 : 0);
bogdanm 0:9b334a45a8ff 65 }
bogdanm 0:9b334a45a8ff 66
bogdanm 0:9b334a45a8ff 67 static inline int gpio_is_connected(const gpio_t *obj) {
bogdanm 0:9b334a45a8ff 68 return obj->pin != (PinName)NC;
bogdanm 0:9b334a45a8ff 69 }
bogdanm 0:9b334a45a8ff 70
bogdanm 0:9b334a45a8ff 71 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 72 }
bogdanm 0:9b334a45a8ff 73 #endif
bogdanm 0:9b334a45a8ff 74
bogdanm 0:9b334a45a8ff 75 #endif