Vladimir Vana / mbed

pro vyuku PSS v Jecne

PortInOut.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 * Copyright (c) 2006-2013 ARM Limited
vladvana 0:23d1f73bf130 3 *
vladvana 0:23d1f73bf130 4 * Licensed under the Apache License, Version 2.0 (the "License");
vladvana 0:23d1f73bf130 5 * you may not use this file except in compliance with the License.
vladvana 0:23d1f73bf130 6 * You may obtain a copy of the License at
vladvana 0:23d1f73bf130 7 *
vladvana 0:23d1f73bf130 8 * http://www.apache.org/licenses/LICENSE-2.0
vladvana 0:23d1f73bf130 9 *
vladvana 0:23d1f73bf130 10 * Unless required by applicable law or agreed to in writing, software
vladvana 0:23d1f73bf130 11 * distributed under the License is distributed on an "AS IS" BASIS,
vladvana 0:23d1f73bf130 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vladvana 0:23d1f73bf130 13 * See the License for the specific language governing permissions and
vladvana 0:23d1f73bf130 14 * limitations under the License.
vladvana 0:23d1f73bf130 15 */
vladvana 0:23d1f73bf130 16 #ifndef MBED_PORTINOUT_H
vladvana 0:23d1f73bf130 17 #define MBED_PORTINOUT_H
vladvana 0:23d1f73bf130 18
vladvana 0:23d1f73bf130 19 #include "platform.h"
vladvana 0:23d1f73bf130 20
vladvana 0:23d1f73bf130 21 #if DEVICE_PORTINOUT
vladvana 0:23d1f73bf130 22
vladvana 0:23d1f73bf130 23 #include "port_api.h"
vladvana 0:23d1f73bf130 24
vladvana 0:23d1f73bf130 25 namespace mbed {
vladvana 0:23d1f73bf130 26
vladvana 0:23d1f73bf130 27 /** A multiple pin digital in/out used to set/read multiple bi-directional pins
vladvana 0:23d1f73bf130 28 */
vladvana 0:23d1f73bf130 29 class PortInOut {
vladvana 0:23d1f73bf130 30 public:
vladvana 0:23d1f73bf130 31
vladvana 0:23d1f73bf130 32 /** Create an PortInOut, connected to the specified port
vladvana 0:23d1f73bf130 33 *
vladvana 0:23d1f73bf130 34 * @param port Port to connect to (Port0-Port5)
vladvana 0:23d1f73bf130 35 * @param mask A bitmask to identify which bits in the port should be included (0 - ignore)
vladvana 0:23d1f73bf130 36 */
vladvana 0:23d1f73bf130 37 PortInOut(PortName port, int mask = 0xFFFFFFFF) {
vladvana 0:23d1f73bf130 38 port_init(&_port, port, mask, PIN_INPUT);
vladvana 0:23d1f73bf130 39 }
vladvana 0:23d1f73bf130 40
vladvana 0:23d1f73bf130 41 /** Write the value to the output port
vladvana 0:23d1f73bf130 42 *
vladvana 0:23d1f73bf130 43 * @param value An integer specifying a bit to write for every corresponding port pin
vladvana 0:23d1f73bf130 44 */
vladvana 0:23d1f73bf130 45 void write(int value) {
vladvana 0:23d1f73bf130 46 port_write(&_port, value);
vladvana 0:23d1f73bf130 47 }
vladvana 0:23d1f73bf130 48
vladvana 0:23d1f73bf130 49 /** Read the value currently output on the port
vladvana 0:23d1f73bf130 50 *
vladvana 0:23d1f73bf130 51 * @returns
vladvana 0:23d1f73bf130 52 * An integer with each bit corresponding to associated port pin setting
vladvana 0:23d1f73bf130 53 */
vladvana 0:23d1f73bf130 54 int read() {
vladvana 0:23d1f73bf130 55 return port_read(&_port);
vladvana 0:23d1f73bf130 56 }
vladvana 0:23d1f73bf130 57
vladvana 0:23d1f73bf130 58 /** Set as an output
vladvana 0:23d1f73bf130 59 */
vladvana 0:23d1f73bf130 60 void output() {
vladvana 0:23d1f73bf130 61 port_dir(&_port, PIN_OUTPUT);
vladvana 0:23d1f73bf130 62 }
vladvana 0:23d1f73bf130 63
vladvana 0:23d1f73bf130 64 /** Set as an input
vladvana 0:23d1f73bf130 65 */
vladvana 0:23d1f73bf130 66 void input() {
vladvana 0:23d1f73bf130 67 port_dir(&_port, PIN_INPUT);
vladvana 0:23d1f73bf130 68 }
vladvana 0:23d1f73bf130 69
vladvana 0:23d1f73bf130 70 /** Set the input pin mode
vladvana 0:23d1f73bf130 71 *
vladvana 0:23d1f73bf130 72 * @param mode PullUp, PullDown, PullNone, OpenDrain
vladvana 0:23d1f73bf130 73 */
vladvana 0:23d1f73bf130 74 void mode(PinMode mode) {
vladvana 0:23d1f73bf130 75 port_mode(&_port, mode);
vladvana 0:23d1f73bf130 76 }
vladvana 0:23d1f73bf130 77
vladvana 0:23d1f73bf130 78 /** A shorthand for write()
vladvana 0:23d1f73bf130 79 */
vladvana 0:23d1f73bf130 80 PortInOut& operator= (int value) {
vladvana 0:23d1f73bf130 81 write(value);
vladvana 0:23d1f73bf130 82 return *this;
vladvana 0:23d1f73bf130 83 }
vladvana 0:23d1f73bf130 84
vladvana 0:23d1f73bf130 85 PortInOut& operator= (PortInOut& rhs) {
vladvana 0:23d1f73bf130 86 write(rhs.read());
vladvana 0:23d1f73bf130 87 return *this;
vladvana 0:23d1f73bf130 88 }
vladvana 0:23d1f73bf130 89
vladvana 0:23d1f73bf130 90 /** A shorthand for read()
vladvana 0:23d1f73bf130 91 */
vladvana 0:23d1f73bf130 92 operator int() {
vladvana 0:23d1f73bf130 93 return read();
vladvana 0:23d1f73bf130 94 }
vladvana 0:23d1f73bf130 95
vladvana 0:23d1f73bf130 96 private:
vladvana 0:23d1f73bf130 97 port_t _port;
vladvana 0:23d1f73bf130 98 };
vladvana 0:23d1f73bf130 99
vladvana 0:23d1f73bf130 100 } // namespace mbed
vladvana 0:23d1f73bf130 101
vladvana 0:23d1f73bf130 102 #endif
vladvana 0:23d1f73bf130 103
vladvana 0:23d1f73bf130 104 #endif