mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

cmsis/BUILD/mbed/TARGET_DISCO_L072CZ_LRWAN1/TOOLCHAIN_IAR/gpio_object.h@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 189:f392fc9709a3 1 /* mbed Microcontroller Library
AnnaBridge 189:f392fc9709a3 2 *******************************************************************************
AnnaBridge 189:f392fc9709a3 3 * Copyright (c) 2016, STMicroelectronics
AnnaBridge 189:f392fc9709a3 4 * All rights reserved.
AnnaBridge 189:f392fc9709a3 5 *
AnnaBridge 189:f392fc9709a3 6 * Redistribution and use in source and binary forms, with or without
AnnaBridge 189:f392fc9709a3 7 * modification, are permitted provided that the following conditions are met:
AnnaBridge 189:f392fc9709a3 8 *
AnnaBridge 189:f392fc9709a3 9 * 1. Redistributions of source code must retain the above copyright notice,
AnnaBridge 189:f392fc9709a3 10 * this list of conditions and the following disclaimer.
AnnaBridge 189:f392fc9709a3 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
AnnaBridge 189:f392fc9709a3 12 * this list of conditions and the following disclaimer in the documentation
AnnaBridge 189:f392fc9709a3 13 * and/or other materials provided with the distribution.
AnnaBridge 189:f392fc9709a3 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
AnnaBridge 189:f392fc9709a3 15 * may be used to endorse or promote products derived from this software
AnnaBridge 189:f392fc9709a3 16 * without specific prior written permission.
AnnaBridge 189:f392fc9709a3 17 *
AnnaBridge 189:f392fc9709a3 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge 189:f392fc9709a3 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge 189:f392fc9709a3 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 189:f392fc9709a3 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
AnnaBridge 189:f392fc9709a3 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
AnnaBridge 189:f392fc9709a3 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
AnnaBridge 189:f392fc9709a3 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
AnnaBridge 189:f392fc9709a3 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
AnnaBridge 189:f392fc9709a3 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
AnnaBridge 189:f392fc9709a3 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 189:f392fc9709a3 28 *******************************************************************************
AnnaBridge 189:f392fc9709a3 29 */
AnnaBridge 189:f392fc9709a3 30 #ifndef MBED_GPIO_OBJECT_H
AnnaBridge 189:f392fc9709a3 31 #define MBED_GPIO_OBJECT_H
AnnaBridge 189:f392fc9709a3 32
AnnaBridge 189:f392fc9709a3 33 #include "mbed_assert.h"
AnnaBridge 189:f392fc9709a3 34 #include "cmsis.h"
AnnaBridge 189:f392fc9709a3 35 #include "PortNames.h"
AnnaBridge 189:f392fc9709a3 36 #include "PeripheralNames.h"
AnnaBridge 189:f392fc9709a3 37 #include "PinNames.h"
AnnaBridge 189:f392fc9709a3 38
AnnaBridge 189:f392fc9709a3 39 #ifdef __cplusplus
AnnaBridge 189:f392fc9709a3 40 extern "C" {
AnnaBridge 189:f392fc9709a3 41 #endif
AnnaBridge 189:f392fc9709a3 42
AnnaBridge 189:f392fc9709a3 43 /*
AnnaBridge 189:f392fc9709a3 44 * Note: reg_clr might actually be same as reg_set.
AnnaBridge 189:f392fc9709a3 45 * Depends on family whether BRR is available on top of BSRR
AnnaBridge 189:f392fc9709a3 46 * if BRR does not exist, family shall define GPIO_IP_WITHOUT_BRR
AnnaBridge 189:f392fc9709a3 47 */
AnnaBridge 189:f392fc9709a3 48 typedef struct {
AnnaBridge 189:f392fc9709a3 49 uint32_t mask;
AnnaBridge 189:f392fc9709a3 50 __IO uint32_t *reg_in;
AnnaBridge 189:f392fc9709a3 51 __IO uint32_t *reg_set;
AnnaBridge 189:f392fc9709a3 52 __IO uint32_t *reg_clr;
AnnaBridge 189:f392fc9709a3 53 PinName pin;
AnnaBridge 189:f392fc9709a3 54 GPIO_TypeDef *gpio;
AnnaBridge 189:f392fc9709a3 55 uint32_t ll_pin;
AnnaBridge 189:f392fc9709a3 56 } gpio_t;
AnnaBridge 189:f392fc9709a3 57
AnnaBridge 189:f392fc9709a3 58 static inline void gpio_write(gpio_t *obj, int value)
AnnaBridge 189:f392fc9709a3 59 {
AnnaBridge 189:f392fc9709a3 60 if (value) {
AnnaBridge 189:f392fc9709a3 61 *obj->reg_set = obj->mask;
AnnaBridge 189:f392fc9709a3 62 } else {
AnnaBridge 189:f392fc9709a3 63 #ifdef GPIO_IP_WITHOUT_BRR
AnnaBridge 189:f392fc9709a3 64 *obj->reg_clr = obj->mask << 16;
AnnaBridge 189:f392fc9709a3 65 #else
AnnaBridge 189:f392fc9709a3 66 *obj->reg_clr = obj->mask;
AnnaBridge 189:f392fc9709a3 67 #endif
AnnaBridge 189:f392fc9709a3 68 }
AnnaBridge 189:f392fc9709a3 69 }
AnnaBridge 189:f392fc9709a3 70
AnnaBridge 189:f392fc9709a3 71 static inline int gpio_read(gpio_t *obj)
AnnaBridge 189:f392fc9709a3 72 {
AnnaBridge 189:f392fc9709a3 73 return ((*obj->reg_in & obj->mask) ? 1 : 0);
AnnaBridge 189:f392fc9709a3 74 }
AnnaBridge 189:f392fc9709a3 75
AnnaBridge 189:f392fc9709a3 76 static inline int gpio_is_connected(const gpio_t *obj)
AnnaBridge 189:f392fc9709a3 77 {
AnnaBridge 189:f392fc9709a3 78 return obj->pin != (PinName)NC;
AnnaBridge 189:f392fc9709a3 79 }
AnnaBridge 189:f392fc9709a3 80
AnnaBridge 189:f392fc9709a3 81
AnnaBridge 189:f392fc9709a3 82 #ifdef __cplusplus
AnnaBridge 189:f392fc9709a3 83 }
AnnaBridge 189:f392fc9709a3 84 #endif
AnnaBridge 189:f392fc9709a3 85
AnnaBridge 189:f392fc9709a3 86 #endif