Daniel Vizcaya / Mbed OS 04_RTOS_Embebidos

Entrega 3er corte - sistemas embebidos

mbed-os/drivers/PortInOut.h@0:6ad07c9019fd, 2018-05-30 (annotated)

Committer:
Bethory
Date:
Wed May 30 00:01:50 2018 +0000
Revision:
0:6ad07c9019fd
Codigo de tales para todos los pasculaes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Bethory 0:6ad07c9019fd 1 /* mbed Microcontroller Library
Bethory 0:6ad07c9019fd 2 * Copyright (c) 2006-2013 ARM Limited
Bethory 0:6ad07c9019fd 3 *
Bethory 0:6ad07c9019fd 4 * Licensed under the Apache License, Version 2.0 (the "License");
Bethory 0:6ad07c9019fd 5 * you may not use this file except in compliance with the License.
Bethory 0:6ad07c9019fd 6 * You may obtain a copy of the License at
Bethory 0:6ad07c9019fd 7 *
Bethory 0:6ad07c9019fd 8 * http://www.apache.org/licenses/LICENSE-2.0
Bethory 0:6ad07c9019fd 9 *
Bethory 0:6ad07c9019fd 10 * Unless required by applicable law or agreed to in writing, software
Bethory 0:6ad07c9019fd 11 * distributed under the License is distributed on an "AS IS" BASIS,
Bethory 0:6ad07c9019fd 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Bethory 0:6ad07c9019fd 13 * See the License for the specific language governing permissions and
Bethory 0:6ad07c9019fd 14 * limitations under the License.
Bethory 0:6ad07c9019fd 15 */
Bethory 0:6ad07c9019fd 16 #ifndef MBED_PORTINOUT_H
Bethory 0:6ad07c9019fd 17 #define MBED_PORTINOUT_H
Bethory 0:6ad07c9019fd 18
Bethory 0:6ad07c9019fd 19 #include "platform/platform.h"
Bethory 0:6ad07c9019fd 20
Bethory 0:6ad07c9019fd 21 #if defined (DEVICE_PORTINOUT) || defined(DOXYGEN_ONLY)
Bethory 0:6ad07c9019fd 22
Bethory 0:6ad07c9019fd 23 #include "hal/port_api.h"
Bethory 0:6ad07c9019fd 24 #include "platform/mbed_critical.h"
Bethory 0:6ad07c9019fd 25
Bethory 0:6ad07c9019fd 26 namespace mbed {
Bethory 0:6ad07c9019fd 27 /** \addtogroup drivers */
Bethory 0:6ad07c9019fd 28
Bethory 0:6ad07c9019fd 29 /** A multiple pin digital in/out used to set/read multiple bi-directional pins
Bethory 0:6ad07c9019fd 30 *
Bethory 0:6ad07c9019fd 31 * @note Synchronization level: Interrupt safe
Bethory 0:6ad07c9019fd 32 * @ingroup drivers
Bethory 0:6ad07c9019fd 33 */
Bethory 0:6ad07c9019fd 34 class PortInOut {
Bethory 0:6ad07c9019fd 35 public:
Bethory 0:6ad07c9019fd 36
Bethory 0:6ad07c9019fd 37 /** Create an PortInOut, connected to the specified port
Bethory 0:6ad07c9019fd 38 *
Bethory 0:6ad07c9019fd 39 * @param port Port to connect to (Port0-Port5)
Bethory 0:6ad07c9019fd 40 * @param mask A bitmask to identify which bits in the port should be included (0 - ignore)
Bethory 0:6ad07c9019fd 41 */
Bethory 0:6ad07c9019fd 42 PortInOut(PortName port, int mask = 0xFFFFFFFF) {
Bethory 0:6ad07c9019fd 43 core_util_critical_section_enter();
Bethory 0:6ad07c9019fd 44 port_init(&_port, port, mask, PIN_INPUT);
Bethory 0:6ad07c9019fd 45 core_util_critical_section_exit();
Bethory 0:6ad07c9019fd 46 }
Bethory 0:6ad07c9019fd 47
Bethory 0:6ad07c9019fd 48 /** Write the value to the output port
Bethory 0:6ad07c9019fd 49 *
Bethory 0:6ad07c9019fd 50 * @param value An integer specifying a bit to write for every corresponding port pin
Bethory 0:6ad07c9019fd 51 */
Bethory 0:6ad07c9019fd 52 void write(int value) {
Bethory 0:6ad07c9019fd 53 port_write(&_port, value);
Bethory 0:6ad07c9019fd 54 }
Bethory 0:6ad07c9019fd 55
Bethory 0:6ad07c9019fd 56 /** Read the value currently output on the port
Bethory 0:6ad07c9019fd 57 *
Bethory 0:6ad07c9019fd 58 * @returns
Bethory 0:6ad07c9019fd 59 * An integer with each bit corresponding to associated port pin setting
Bethory 0:6ad07c9019fd 60 */
Bethory 0:6ad07c9019fd 61 int read() {
Bethory 0:6ad07c9019fd 62 return port_read(&_port);
Bethory 0:6ad07c9019fd 63 }
Bethory 0:6ad07c9019fd 64
Bethory 0:6ad07c9019fd 65 /** Set as an output
Bethory 0:6ad07c9019fd 66 */
Bethory 0:6ad07c9019fd 67 void output() {
Bethory 0:6ad07c9019fd 68 core_util_critical_section_enter();
Bethory 0:6ad07c9019fd 69 port_dir(&_port, PIN_OUTPUT);
Bethory 0:6ad07c9019fd 70 core_util_critical_section_exit();
Bethory 0:6ad07c9019fd 71 }
Bethory 0:6ad07c9019fd 72
Bethory 0:6ad07c9019fd 73 /** Set as an input
Bethory 0:6ad07c9019fd 74 */
Bethory 0:6ad07c9019fd 75 void input() {
Bethory 0:6ad07c9019fd 76 core_util_critical_section_enter();
Bethory 0:6ad07c9019fd 77 port_dir(&_port, PIN_INPUT);
Bethory 0:6ad07c9019fd 78 core_util_critical_section_exit();
Bethory 0:6ad07c9019fd 79 }
Bethory 0:6ad07c9019fd 80
Bethory 0:6ad07c9019fd 81 /** Set the input pin mode
Bethory 0:6ad07c9019fd 82 *
Bethory 0:6ad07c9019fd 83 * @param mode PullUp, PullDown, PullNone, OpenDrain
Bethory 0:6ad07c9019fd 84 */
Bethory 0:6ad07c9019fd 85 void mode(PinMode mode) {
Bethory 0:6ad07c9019fd 86 core_util_critical_section_enter();
Bethory 0:6ad07c9019fd 87 port_mode(&_port, mode);
Bethory 0:6ad07c9019fd 88 core_util_critical_section_exit();
Bethory 0:6ad07c9019fd 89 }
Bethory 0:6ad07c9019fd 90
Bethory 0:6ad07c9019fd 91 /** A shorthand for write()
Bethory 0:6ad07c9019fd 92 * \sa PortInOut::write()
Bethory 0:6ad07c9019fd 93 */
Bethory 0:6ad07c9019fd 94 PortInOut& operator= (int value) {
Bethory 0:6ad07c9019fd 95 write(value);
Bethory 0:6ad07c9019fd 96 return *this;
Bethory 0:6ad07c9019fd 97 }
Bethory 0:6ad07c9019fd 98
Bethory 0:6ad07c9019fd 99 /** A shorthand for write()
Bethory 0:6ad07c9019fd 100 * \sa PortInOut::write()
Bethory 0:6ad07c9019fd 101 */
Bethory 0:6ad07c9019fd 102 PortInOut& operator= (PortInOut& rhs) {
Bethory 0:6ad07c9019fd 103 write(rhs.read());
Bethory 0:6ad07c9019fd 104 return *this;
Bethory 0:6ad07c9019fd 105 }
Bethory 0:6ad07c9019fd 106
Bethory 0:6ad07c9019fd 107 /** A shorthand for read()
Bethory 0:6ad07c9019fd 108 * \sa PortInOut::read()
Bethory 0:6ad07c9019fd 109 */
Bethory 0:6ad07c9019fd 110 operator int() {
Bethory 0:6ad07c9019fd 111 return read();
Bethory 0:6ad07c9019fd 112 }
Bethory 0:6ad07c9019fd 113
Bethory 0:6ad07c9019fd 114 private:
Bethory 0:6ad07c9019fd 115 port_t _port;
Bethory 0:6ad07c9019fd 116 };
Bethory 0:6ad07c9019fd 117
Bethory 0:6ad07c9019fd 118 } // namespace mbed
Bethory 0:6ad07c9019fd 119
Bethory 0:6ad07c9019fd 120 #endif
Bethory 0:6ad07c9019fd 121
Bethory 0:6ad07c9019fd 122 #endif