Takaaki Numai / mbed-dev

inport from local

Dependents:   Hobbyking_Cheetah_0511

targets/TARGET_STM/gpio_object.h@0:85b3fd62ea1a, 2020-03-16 (annotated)

Committer:
NYX
Date:
Mon Mar 16 06:35:48 2020 +0000
Revision:
0:85b3fd62ea1a
reinport to mbed;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
NYX 0:85b3fd62ea1a 1 /* mbed Microcontroller Library
NYX 0:85b3fd62ea1a 2 *******************************************************************************
NYX 0:85b3fd62ea1a 3 * Copyright (c) 2016, STMicroelectronics
NYX 0:85b3fd62ea1a 4 * All rights reserved.
NYX 0:85b3fd62ea1a 5 *
NYX 0:85b3fd62ea1a 6 * Redistribution and use in source and binary forms, with or without
NYX 0:85b3fd62ea1a 7 * modification, are permitted provided that the following conditions are met:
NYX 0:85b3fd62ea1a 8 *
NYX 0:85b3fd62ea1a 9 * 1. Redistributions of source code must retain the above copyright notice,
NYX 0:85b3fd62ea1a 10 * this list of conditions and the following disclaimer.
NYX 0:85b3fd62ea1a 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
NYX 0:85b3fd62ea1a 12 * this list of conditions and the following disclaimer in the documentation
NYX 0:85b3fd62ea1a 13 * and/or other materials provided with the distribution.
NYX 0:85b3fd62ea1a 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
NYX 0:85b3fd62ea1a 15 * may be used to endorse or promote products derived from this software
NYX 0:85b3fd62ea1a 16 * without specific prior written permission.
NYX 0:85b3fd62ea1a 17 *
NYX 0:85b3fd62ea1a 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
NYX 0:85b3fd62ea1a 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
NYX 0:85b3fd62ea1a 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
NYX 0:85b3fd62ea1a 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
NYX 0:85b3fd62ea1a 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
NYX 0:85b3fd62ea1a 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
NYX 0:85b3fd62ea1a 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
NYX 0:85b3fd62ea1a 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
NYX 0:85b3fd62ea1a 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
NYX 0:85b3fd62ea1a 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
NYX 0:85b3fd62ea1a 28 *******************************************************************************
NYX 0:85b3fd62ea1a 29 */
NYX 0:85b3fd62ea1a 30 #ifndef MBED_GPIO_OBJECT_H
NYX 0:85b3fd62ea1a 31 #define MBED_GPIO_OBJECT_H
NYX 0:85b3fd62ea1a 32
NYX 0:85b3fd62ea1a 33 #include "mbed_assert.h"
NYX 0:85b3fd62ea1a 34 #include "cmsis.h"
NYX 0:85b3fd62ea1a 35 #include "PortNames.h"
NYX 0:85b3fd62ea1a 36 #include "PeripheralNames.h"
NYX 0:85b3fd62ea1a 37 #include "PinNames.h"
NYX 0:85b3fd62ea1a 38
NYX 0:85b3fd62ea1a 39 #ifdef __cplusplus
NYX 0:85b3fd62ea1a 40 extern "C" {
NYX 0:85b3fd62ea1a 41 #endif
NYX 0:85b3fd62ea1a 42
NYX 0:85b3fd62ea1a 43 /*
NYX 0:85b3fd62ea1a 44 * Note: reg_clr might actually be same as reg_set.
NYX 0:85b3fd62ea1a 45 * Depends on family whether BRR is available on top of BSRR
NYX 0:85b3fd62ea1a 46 * if BRR does not exist, family shall define GPIO_IP_WITHOUT_BRR
NYX 0:85b3fd62ea1a 47 */
NYX 0:85b3fd62ea1a 48 typedef struct {
NYX 0:85b3fd62ea1a 49 uint32_t mask;
NYX 0:85b3fd62ea1a 50 __IO uint32_t *reg_in;
NYX 0:85b3fd62ea1a 51 __IO uint32_t *reg_set;
NYX 0:85b3fd62ea1a 52 __IO uint32_t *reg_clr;
NYX 0:85b3fd62ea1a 53 PinName pin;
NYX 0:85b3fd62ea1a 54 GPIO_TypeDef *gpio;
NYX 0:85b3fd62ea1a 55 uint32_t ll_pin;
NYX 0:85b3fd62ea1a 56 } gpio_t;
NYX 0:85b3fd62ea1a 57
NYX 0:85b3fd62ea1a 58 static inline void gpio_write(gpio_t *obj, int value)
NYX 0:85b3fd62ea1a 59 {
NYX 0:85b3fd62ea1a 60 if (value) {
NYX 0:85b3fd62ea1a 61 *obj->reg_set = obj->mask;
NYX 0:85b3fd62ea1a 62 } else {
NYX 0:85b3fd62ea1a 63 #ifdef GPIO_IP_WITHOUT_BRR
NYX 0:85b3fd62ea1a 64 *obj->reg_clr = obj->mask << 16;
NYX 0:85b3fd62ea1a 65 #else
NYX 0:85b3fd62ea1a 66 *obj->reg_clr = obj->mask;
NYX 0:85b3fd62ea1a 67 #endif
NYX 0:85b3fd62ea1a 68 }
NYX 0:85b3fd62ea1a 69 }
NYX 0:85b3fd62ea1a 70
NYX 0:85b3fd62ea1a 71 static inline int gpio_read(gpio_t *obj)
NYX 0:85b3fd62ea1a 72 {
NYX 0:85b3fd62ea1a 73 return ((*obj->reg_in & obj->mask) ? 1 : 0);
NYX 0:85b3fd62ea1a 74 }
NYX 0:85b3fd62ea1a 75
NYX 0:85b3fd62ea1a 76 static inline int gpio_is_connected(const gpio_t *obj)
NYX 0:85b3fd62ea1a 77 {
NYX 0:85b3fd62ea1a 78 return obj->pin != (PinName)NC;
NYX 0:85b3fd62ea1a 79 }
NYX 0:85b3fd62ea1a 80
NYX 0:85b3fd62ea1a 81
NYX 0:85b3fd62ea1a 82 #ifdef __cplusplus
NYX 0:85b3fd62ea1a 83 }
NYX 0:85b3fd62ea1a 84 #endif
NYX 0:85b3fd62ea1a 85
NYX 0:85b3fd62ea1a 86 #endif