Vladimir Vana / mbed

pro vyuku PSS v Jecne

TARGET_NUCLEO_F103RB/TARGET_STM/TARGET_STM32F1/gpio_object.h@0:23d1f73bf130, 2017-09-24 (annotated)

Committer:
vladvana
Date:
Sun Sep 24 12:31:52 2017 +0000
Revision:
0:23d1f73bf130
podklady pro cviceni z PSS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vladvana 0:23d1f73bf130 1 /* mbed Microcontroller Library
vladvana 0:23d1f73bf130 2 *******************************************************************************
vladvana 0:23d1f73bf130 3 * Copyright (c) 2014, STMicroelectronics
vladvana 0:23d1f73bf130 4 * All rights reserved.
vladvana 0:23d1f73bf130 5 *
vladvana 0:23d1f73bf130 6 * Redistribution and use in source and binary forms, with or without
vladvana 0:23d1f73bf130 7 * modification, are permitted provided that the following conditions are met:
vladvana 0:23d1f73bf130 8 *
vladvana 0:23d1f73bf130 9 * 1. Redistributions of source code must retain the above copyright notice,
vladvana 0:23d1f73bf130 10 * this list of conditions and the following disclaimer.
vladvana 0:23d1f73bf130 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
vladvana 0:23d1f73bf130 12 * this list of conditions and the following disclaimer in the documentation
vladvana 0:23d1f73bf130 13 * and/or other materials provided with the distribution.
vladvana 0:23d1f73bf130 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
vladvana 0:23d1f73bf130 15 * may be used to endorse or promote products derived from this software
vladvana 0:23d1f73bf130 16 * without specific prior written permission.
vladvana 0:23d1f73bf130 17 *
vladvana 0:23d1f73bf130 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
vladvana 0:23d1f73bf130 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
vladvana 0:23d1f73bf130 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
vladvana 0:23d1f73bf130 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
vladvana 0:23d1f73bf130 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
vladvana 0:23d1f73bf130 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
vladvana 0:23d1f73bf130 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
vladvana 0:23d1f73bf130 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
vladvana 0:23d1f73bf130 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
vladvana 0:23d1f73bf130 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
vladvana 0:23d1f73bf130 28 *******************************************************************************
vladvana 0:23d1f73bf130 29 */
vladvana 0:23d1f73bf130 30 #ifndef MBED_GPIO_OBJECT_H
vladvana 0:23d1f73bf130 31 #define MBED_GPIO_OBJECT_H
vladvana 0:23d1f73bf130 32
vladvana 0:23d1f73bf130 33 #include "mbed_assert.h"
vladvana 0:23d1f73bf130 34 #include "cmsis.h"
vladvana 0:23d1f73bf130 35 #include "PortNames.h"
vladvana 0:23d1f73bf130 36 #include "PeripheralNames.h"
vladvana 0:23d1f73bf130 37 #include "PinNames.h"
vladvana 0:23d1f73bf130 38
vladvana 0:23d1f73bf130 39 #ifdef __cplusplus
vladvana 0:23d1f73bf130 40 extern "C" {
vladvana 0:23d1f73bf130 41 #endif
vladvana 0:23d1f73bf130 42
vladvana 0:23d1f73bf130 43 typedef struct {
vladvana 0:23d1f73bf130 44 PinName pin;
vladvana 0:23d1f73bf130 45 uint32_t mask;
vladvana 0:23d1f73bf130 46 __IO uint32_t *reg_in;
vladvana 0:23d1f73bf130 47 __IO uint32_t *reg_set;
vladvana 0:23d1f73bf130 48 __IO uint32_t *reg_clr;
vladvana 0:23d1f73bf130 49 } gpio_t;
vladvana 0:23d1f73bf130 50
vladvana 0:23d1f73bf130 51 static inline void gpio_write(gpio_t *obj, int value)
vladvana 0:23d1f73bf130 52 {
vladvana 0:23d1f73bf130 53 MBED_ASSERT(obj->pin != (PinName)NC);
vladvana 0:23d1f73bf130 54 if (value) {
vladvana 0:23d1f73bf130 55 *obj->reg_set = obj->mask;
vladvana 0:23d1f73bf130 56 } else {
vladvana 0:23d1f73bf130 57 *obj->reg_clr = obj->mask;
vladvana 0:23d1f73bf130 58 }
vladvana 0:23d1f73bf130 59 }
vladvana 0:23d1f73bf130 60
vladvana 0:23d1f73bf130 61 static inline int gpio_read(gpio_t *obj)
vladvana 0:23d1f73bf130 62 {
vladvana 0:23d1f73bf130 63 MBED_ASSERT(obj->pin != (PinName)NC);
vladvana 0:23d1f73bf130 64 return ((*obj->reg_in & obj->mask) ? 1 : 0);
vladvana 0:23d1f73bf130 65 }
vladvana 0:23d1f73bf130 66
vladvana 0:23d1f73bf130 67 static inline int gpio_is_connected(const gpio_t *obj) {
vladvana 0:23d1f73bf130 68 return obj->pin != (PinName)NC;
vladvana 0:23d1f73bf130 69 }
vladvana 0:23d1f73bf130 70
vladvana 0:23d1f73bf130 71 #ifdef __cplusplus
vladvana 0:23d1f73bf130 72 }
vladvana 0:23d1f73bf130 73 #endif
vladvana 0:23d1f73bf130 74
vladvana 0:23d1f73bf130 75 #endif