PHung Tung / SRC_STM32F7

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Dependents:   WAV

targets/hal/TARGET_STM/TARGET_STM32F7/gpio_object.h@0:e87aa4c49e95, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:51:46 2019 +0000
Revision:
0:e87aa4c49e95
libray

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:e87aa4c49e95 1 /* mbed Microcontroller Library
phungductung 0:e87aa4c49e95 2 *******************************************************************************
phungductung 0:e87aa4c49e95 3 * Copyright (c) 2015, STMicroelectronics
phungductung 0:e87aa4c49e95 4 * All rights reserved.
phungductung 0:e87aa4c49e95 5 *
phungductung 0:e87aa4c49e95 6 * Redistribution and use in source and binary forms, with or without
phungductung 0:e87aa4c49e95 7 * modification, are permitted provided that the following conditions are met:
phungductung 0:e87aa4c49e95 8 *
phungductung 0:e87aa4c49e95 9 * 1. Redistributions of source code must retain the above copyright notice,
phungductung 0:e87aa4c49e95 10 * this list of conditions and the following disclaimer.
phungductung 0:e87aa4c49e95 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
phungductung 0:e87aa4c49e95 12 * this list of conditions and the following disclaimer in the documentation
phungductung 0:e87aa4c49e95 13 * and/or other materials provided with the distribution.
phungductung 0:e87aa4c49e95 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
phungductung 0:e87aa4c49e95 15 * may be used to endorse or promote products derived from this software
phungductung 0:e87aa4c49e95 16 * without specific prior written permission.
phungductung 0:e87aa4c49e95 17 *
phungductung 0:e87aa4c49e95 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
phungductung 0:e87aa4c49e95 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
phungductung 0:e87aa4c49e95 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
phungductung 0:e87aa4c49e95 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
phungductung 0:e87aa4c49e95 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
phungductung 0:e87aa4c49e95 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
phungductung 0:e87aa4c49e95 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
phungductung 0:e87aa4c49e95 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
phungductung 0:e87aa4c49e95 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
phungductung 0:e87aa4c49e95 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
phungductung 0:e87aa4c49e95 28 *******************************************************************************
phungductung 0:e87aa4c49e95 29 */
phungductung 0:e87aa4c49e95 30 #ifndef MBED_GPIO_OBJECT_H
phungductung 0:e87aa4c49e95 31 #define MBED_GPIO_OBJECT_H
phungductung 0:e87aa4c49e95 32
phungductung 0:e87aa4c49e95 33 #include "mbed_assert.h"
phungductung 0:e87aa4c49e95 34 #include "cmsis.h"
phungductung 0:e87aa4c49e95 35 #include "PortNames.h"
phungductung 0:e87aa4c49e95 36 #include "PeripheralNames.h"
phungductung 0:e87aa4c49e95 37 #include "PinNames.h"
phungductung 0:e87aa4c49e95 38
phungductung 0:e87aa4c49e95 39 #ifdef __cplusplus
phungductung 0:e87aa4c49e95 40 extern "C" {
phungductung 0:e87aa4c49e95 41 #endif
phungductung 0:e87aa4c49e95 42
phungductung 0:e87aa4c49e95 43 typedef struct {
phungductung 0:e87aa4c49e95 44 PinName pin;
phungductung 0:e87aa4c49e95 45 uint32_t mask;
phungductung 0:e87aa4c49e95 46 __IO uint32_t *reg_in;
phungductung 0:e87aa4c49e95 47 __IO uint32_t *reg_set_clr;
phungductung 0:e87aa4c49e95 48 } gpio_t;
phungductung 0:e87aa4c49e95 49
phungductung 0:e87aa4c49e95 50 static inline void gpio_write(gpio_t *obj, int value)
phungductung 0:e87aa4c49e95 51 {
phungductung 0:e87aa4c49e95 52 MBED_ASSERT(obj->pin != (PinName)NC);
phungductung 0:e87aa4c49e95 53 if (value) {
phungductung 0:e87aa4c49e95 54 *obj->reg_set_clr = obj->mask;
phungductung 0:e87aa4c49e95 55 } else {
phungductung 0:e87aa4c49e95 56 *obj->reg_set_clr = obj->mask << 16;
phungductung 0:e87aa4c49e95 57 }
phungductung 0:e87aa4c49e95 58 }
phungductung 0:e87aa4c49e95 59
phungductung 0:e87aa4c49e95 60 static inline int gpio_read(gpio_t *obj)
phungductung 0:e87aa4c49e95 61 {
phungductung 0:e87aa4c49e95 62 MBED_ASSERT(obj->pin != (PinName)NC);
phungductung 0:e87aa4c49e95 63 return ((*obj->reg_in & obj->mask) ? 1 : 0);
phungductung 0:e87aa4c49e95 64 }
phungductung 0:e87aa4c49e95 65
phungductung 0:e87aa4c49e95 66 static inline int gpio_is_connected(const gpio_t *obj)
phungductung 0:e87aa4c49e95 67 {
phungductung 0:e87aa4c49e95 68 return obj->pin != (PinName)NC;
phungductung 0:e87aa4c49e95 69 }
phungductung 0:e87aa4c49e95 70
phungductung 0:e87aa4c49e95 71 #ifdef __cplusplus
phungductung 0:e87aa4c49e95 72 }
phungductung 0:e87aa4c49e95 73 #endif
phungductung 0:e87aa4c49e95 74
phungductung 0:e87aa4c49e95 75 #endif