Jhon Plantikow / I2C_EEPROM

I2C_EEPROM

TARGET_NUCLEO_F072RB/TARGET_STM/TARGET_STM32F0/gpio_object.h@0:ac8863619623, 2015-08-13 (annotated)

Committer:
jhon309
Date:
Thu Aug 13 00:23:16 2015 +0000
Revision:
0:ac8863619623
I2C

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jhon309 0:ac8863619623 1 /* mbed Microcontroller Library
jhon309 0:ac8863619623 2 *******************************************************************************
jhon309 0:ac8863619623 3 * Copyright (c) 2014, STMicroelectronics
jhon309 0:ac8863619623 4 * All rights reserved.
jhon309 0:ac8863619623 5 *
jhon309 0:ac8863619623 6 * Redistribution and use in source and binary forms, with or without
jhon309 0:ac8863619623 7 * modification, are permitted provided that the following conditions are met:
jhon309 0:ac8863619623 8 *
jhon309 0:ac8863619623 9 * 1. Redistributions of source code must retain the above copyright notice,
jhon309 0:ac8863619623 10 * this list of conditions and the following disclaimer.
jhon309 0:ac8863619623 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
jhon309 0:ac8863619623 12 * this list of conditions and the following disclaimer in the documentation
jhon309 0:ac8863619623 13 * and/or other materials provided with the distribution.
jhon309 0:ac8863619623 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
jhon309 0:ac8863619623 15 * may be used to endorse or promote products derived from this software
jhon309 0:ac8863619623 16 * without specific prior written permission.
jhon309 0:ac8863619623 17 *
jhon309 0:ac8863619623 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
jhon309 0:ac8863619623 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
jhon309 0:ac8863619623 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
jhon309 0:ac8863619623 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
jhon309 0:ac8863619623 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
jhon309 0:ac8863619623 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
jhon309 0:ac8863619623 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
jhon309 0:ac8863619623 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
jhon309 0:ac8863619623 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
jhon309 0:ac8863619623 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
jhon309 0:ac8863619623 28 *******************************************************************************
jhon309 0:ac8863619623 29 */
jhon309 0:ac8863619623 30 #ifndef MBED_GPIO_OBJECT_H
jhon309 0:ac8863619623 31 #define MBED_GPIO_OBJECT_H
jhon309 0:ac8863619623 32
jhon309 0:ac8863619623 33 #include "mbed_assert.h"
jhon309 0:ac8863619623 34 #include "cmsis.h"
jhon309 0:ac8863619623 35 #include "PortNames.h"
jhon309 0:ac8863619623 36 #include "PeripheralNames.h"
jhon309 0:ac8863619623 37 #include "PinNames.h"
jhon309 0:ac8863619623 38
jhon309 0:ac8863619623 39 #ifdef __cplusplus
jhon309 0:ac8863619623 40 extern "C" {
jhon309 0:ac8863619623 41 #endif
jhon309 0:ac8863619623 42
jhon309 0:ac8863619623 43 typedef struct {
jhon309 0:ac8863619623 44 PinName pin;
jhon309 0:ac8863619623 45 uint32_t mask;
jhon309 0:ac8863619623 46 __IO uint32_t *reg_in;
jhon309 0:ac8863619623 47 __IO uint32_t *reg_set;
jhon309 0:ac8863619623 48 __IO uint32_t *reg_clr;
jhon309 0:ac8863619623 49 } gpio_t;
jhon309 0:ac8863619623 50
jhon309 0:ac8863619623 51 static inline void gpio_write(gpio_t *obj, int value)
jhon309 0:ac8863619623 52 {
jhon309 0:ac8863619623 53 MBED_ASSERT(obj->pin != (PinName)NC);
jhon309 0:ac8863619623 54 if (value) {
jhon309 0:ac8863619623 55 *obj->reg_set = obj->mask;
jhon309 0:ac8863619623 56 } else {
jhon309 0:ac8863619623 57 *obj->reg_clr = obj->mask;
jhon309 0:ac8863619623 58 }
jhon309 0:ac8863619623 59 }
jhon309 0:ac8863619623 60
jhon309 0:ac8863619623 61 static inline int gpio_read(gpio_t *obj)
jhon309 0:ac8863619623 62 {
jhon309 0:ac8863619623 63 MBED_ASSERT(obj->pin != (PinName)NC);
jhon309 0:ac8863619623 64 return ((*obj->reg_in & obj->mask) ? 1 : 0);
jhon309 0:ac8863619623 65 }
jhon309 0:ac8863619623 66
jhon309 0:ac8863619623 67 static inline int gpio_is_connected(const gpio_t *obj) {
jhon309 0:ac8863619623 68 return obj->pin != (PinName)NC;
jhon309 0:ac8863619623 69 }
jhon309 0:ac8863619623 70
jhon309 0:ac8863619623 71 #ifdef __cplusplus
jhon309 0:ac8863619623 72 }
jhon309 0:ac8863619623 73 #endif
jhon309 0:ac8863619623 74
jhon309 0:ac8863619623 75 #endif