Jhon Plantikow / Dataloger

Dataloger

TARGET_NUCLEO_F072RB/TARGET_STM/TARGET_STM32F0/gpio_object.h@0:666850d06c9f, 2015-08-20 (annotated)

Committer:
jhon309
Date:
Thu Aug 20 00:37:14 2015 +0000
Revision:
0:666850d06c9f
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Who changed what in which revision?

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jhon309 0:666850d06c9f 1 /* mbed Microcontroller Library
jhon309 0:666850d06c9f 2 *******************************************************************************
jhon309 0:666850d06c9f 3 * Copyright (c) 2014, STMicroelectronics
jhon309 0:666850d06c9f 4 * All rights reserved.
jhon309 0:666850d06c9f 5 *
jhon309 0:666850d06c9f 6 * Redistribution and use in source and binary forms, with or without
jhon309 0:666850d06c9f 7 * modification, are permitted provided that the following conditions are met:
jhon309 0:666850d06c9f 8 *
jhon309 0:666850d06c9f 9 * 1. Redistributions of source code must retain the above copyright notice,
jhon309 0:666850d06c9f 10 * this list of conditions and the following disclaimer.
jhon309 0:666850d06c9f 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
jhon309 0:666850d06c9f 12 * this list of conditions and the following disclaimer in the documentation
jhon309 0:666850d06c9f 13 * and/or other materials provided with the distribution.
jhon309 0:666850d06c9f 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
jhon309 0:666850d06c9f 15 * may be used to endorse or promote products derived from this software
jhon309 0:666850d06c9f 16 * without specific prior written permission.
jhon309 0:666850d06c9f 17 *
jhon309 0:666850d06c9f 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
jhon309 0:666850d06c9f 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
jhon309 0:666850d06c9f 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
jhon309 0:666850d06c9f 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
jhon309 0:666850d06c9f 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
jhon309 0:666850d06c9f 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
jhon309 0:666850d06c9f 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
jhon309 0:666850d06c9f 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
jhon309 0:666850d06c9f 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
jhon309 0:666850d06c9f 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
jhon309 0:666850d06c9f 28 *******************************************************************************
jhon309 0:666850d06c9f 29 */
jhon309 0:666850d06c9f 30 #ifndef MBED_GPIO_OBJECT_H
jhon309 0:666850d06c9f 31 #define MBED_GPIO_OBJECT_H
jhon309 0:666850d06c9f 32
jhon309 0:666850d06c9f 33 #include "mbed_assert.h"
jhon309 0:666850d06c9f 34 #include "cmsis.h"
jhon309 0:666850d06c9f 35 #include "PortNames.h"
jhon309 0:666850d06c9f 36 #include "PeripheralNames.h"
jhon309 0:666850d06c9f 37 #include "PinNames.h"
jhon309 0:666850d06c9f 38
jhon309 0:666850d06c9f 39 #ifdef __cplusplus
jhon309 0:666850d06c9f 40 extern "C" {
jhon309 0:666850d06c9f 41 #endif
jhon309 0:666850d06c9f 42
jhon309 0:666850d06c9f 43 typedef struct {
jhon309 0:666850d06c9f 44 PinName pin;
jhon309 0:666850d06c9f 45 uint32_t mask;
jhon309 0:666850d06c9f 46 __IO uint32_t *reg_in;
jhon309 0:666850d06c9f 47 __IO uint32_t *reg_set;
jhon309 0:666850d06c9f 48 __IO uint32_t *reg_clr;
jhon309 0:666850d06c9f 49 } gpio_t;
jhon309 0:666850d06c9f 50
jhon309 0:666850d06c9f 51 static inline void gpio_write(gpio_t *obj, int value)
jhon309 0:666850d06c9f 52 {
jhon309 0:666850d06c9f 53 MBED_ASSERT(obj->pin != (PinName)NC);
jhon309 0:666850d06c9f 54 if (value) {
jhon309 0:666850d06c9f 55 *obj->reg_set = obj->mask;
jhon309 0:666850d06c9f 56 } else {
jhon309 0:666850d06c9f 57 *obj->reg_clr = obj->mask;
jhon309 0:666850d06c9f 58 }
jhon309 0:666850d06c9f 59 }
jhon309 0:666850d06c9f 60
jhon309 0:666850d06c9f 61 static inline int gpio_read(gpio_t *obj)
jhon309 0:666850d06c9f 62 {
jhon309 0:666850d06c9f 63 MBED_ASSERT(obj->pin != (PinName)NC);
jhon309 0:666850d06c9f 64 return ((*obj->reg_in & obj->mask) ? 1 : 0);
jhon309 0:666850d06c9f 65 }
jhon309 0:666850d06c9f 66
jhon309 0:666850d06c9f 67 static inline int gpio_is_connected(const gpio_t *obj) {
jhon309 0:666850d06c9f 68 return obj->pin != (PinName)NC;
jhon309 0:666850d06c9f 69 }
jhon309 0:666850d06c9f 70
jhon309 0:666850d06c9f 71 #ifdef __cplusplus
jhon309 0:666850d06c9f 72 }
jhon309 0:666850d06c9f 73 #endif
jhon309 0:666850d06c9f 74
jhon309 0:666850d06c9f 75 #endif