雄介 太田 / mbed

mbed(SerialHalfDuplex入り)

Fork of mbed by mbed official

PortInOut.h@57:0480438fc29c, 2013-01-18 (annotated)

Committer:
emilmont
Date:
Fri Jan 18 10:30:14 2013 +0000
Revision:
57:0480438fc29c
Parent:
55:d722ed6a4237
Child:
59:0883845fe643
Add semihosting support for IAR toolchain

Improve IAR stdio retargeting

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 44:24d45a770a51 1 /* mbed Microcontroller Library
emilmont 54:71b101360fb9 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 44:24d45a770a51 3 *
emilmont 44:24d45a770a51 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
emilmont 44:24d45a770a51 5 * of this software and associated documentation files (the "Software"), to deal
emilmont 44:24d45a770a51 6 * in the Software without restriction, including without limitation the rights
emilmont 44:24d45a770a51 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
emilmont 44:24d45a770a51 8 * copies of the Software, and to permit persons to whom the Software is
emilmont 44:24d45a770a51 9 * furnished to do so, subject to the following conditions:
emilmont 44:24d45a770a51 10 *
emilmont 44:24d45a770a51 11 * The above copyright notice and this permission notice shall be included in
emilmont 44:24d45a770a51 12 * all copies or substantial portions of the Software.
emilmont 44:24d45a770a51 13 *
emilmont 44:24d45a770a51 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
emilmont 44:24d45a770a51 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
emilmont 44:24d45a770a51 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
emilmont 44:24d45a770a51 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
emilmont 44:24d45a770a51 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
emilmont 44:24d45a770a51 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
emilmont 44:24d45a770a51 20 * SOFTWARE.
emilmont 44:24d45a770a51 21 */
emilmont 44:24d45a770a51 22 #ifndef MBED_PORTINOUT_H
emilmont 44:24d45a770a51 23 #define MBED_PORTINOUT_H
emilmont 44:24d45a770a51 24
emilmont 44:24d45a770a51 25 #include "platform.h"
emilmont 44:24d45a770a51 26
emilmont 44:24d45a770a51 27 #if DEVICE_PORTINOUT
emilmont 44:24d45a770a51 28
emilmont 44:24d45a770a51 29 #include "port_api.h"
emilmont 44:24d45a770a51 30
emilmont 44:24d45a770a51 31 namespace mbed {
emilmont 44:24d45a770a51 32
emilmont 44:24d45a770a51 33 /** A multiple pin digital in/out used to set/read multiple bi-directional pins
emilmont 44:24d45a770a51 34 */
emilmont 44:24d45a770a51 35 class PortInOut {
emilmont 44:24d45a770a51 36 public:
emilmont 44:24d45a770a51 37
emilmont 44:24d45a770a51 38 /** Create an PortInOut, connected to the specified port
emilmont 44:24d45a770a51 39 *
emilmont 44:24d45a770a51 40 * @param port Port to connect to (Port0-Port5)
emilmont 44:24d45a770a51 41 * @param mask A bitmask to identify which bits in the port should be included (0 - ignore)
emilmont 55:d722ed6a4237 42 */
emilmont 44:24d45a770a51 43 PortInOut(PortName port, int mask = 0xFFFFFFFF) {
emilmont 44:24d45a770a51 44 port_init(&_port, port, mask, PIN_INPUT);
emilmont 44:24d45a770a51 45 }
emilmont 55:d722ed6a4237 46
emilmont 44:24d45a770a51 47 /** Write the value to the output port
emilmont 44:24d45a770a51 48 *
emilmont 44:24d45a770a51 49 * @param value An integer specifying a bit to write for every corresponding port pin
emilmont 55:d722ed6a4237 50 */
emilmont 44:24d45a770a51 51 void write(int value) {
emilmont 44:24d45a770a51 52 port_write(&_port, value);
emilmont 44:24d45a770a51 53 }
emilmont 55:d722ed6a4237 54
emilmont 44:24d45a770a51 55 /** Read the value currently output on the port
emilmont 44:24d45a770a51 56 *
emilmont 44:24d45a770a51 57 * @returns
emilmont 44:24d45a770a51 58 * An integer with each bit corresponding to associated port pin setting
emilmont 44:24d45a770a51 59 */
emilmont 44:24d45a770a51 60 int read() {
emilmont 44:24d45a770a51 61 return port_read(&_port);
emilmont 44:24d45a770a51 62 }
emilmont 55:d722ed6a4237 63
emilmont 44:24d45a770a51 64 /** Set as an output
emilmont 44:24d45a770a51 65 */
emilmont 44:24d45a770a51 66 void output() {
emilmont 44:24d45a770a51 67 port_dir(&_port, PIN_OUTPUT);
emilmont 44:24d45a770a51 68 }
emilmont 55:d722ed6a4237 69
emilmont 44:24d45a770a51 70 /** Set as an input
emilmont 44:24d45a770a51 71 */
emilmont 44:24d45a770a51 72 void input() {
emilmont 44:24d45a770a51 73 port_dir(&_port, PIN_INPUT);
emilmont 44:24d45a770a51 74 }
emilmont 55:d722ed6a4237 75
emilmont 44:24d45a770a51 76 /** Set the input pin mode
emilmont 44:24d45a770a51 77 *
emilmont 44:24d45a770a51 78 * @param mode PullUp, PullDown, PullNone, OpenDrain
emilmont 44:24d45a770a51 79 */
emilmont 44:24d45a770a51 80 void mode(PinMode mode) {
emilmont 44:24d45a770a51 81 port_mode(&_port, mode);
emilmont 44:24d45a770a51 82 }
emilmont 55:d722ed6a4237 83
emilmont 44:24d45a770a51 84 /** A shorthand for write()
emilmont 55:d722ed6a4237 85 */
emilmont 44:24d45a770a51 86 PortInOut& operator= (int value) {
emilmont 44:24d45a770a51 87 write(value);
emilmont 44:24d45a770a51 88 return *this;
emilmont 44:24d45a770a51 89 }
emilmont 55:d722ed6a4237 90
emilmont 44:24d45a770a51 91 PortInOut& operator= (PortInOut& rhs) {
emilmont 44:24d45a770a51 92 write(rhs.read());
emilmont 44:24d45a770a51 93 return *this;
emilmont 44:24d45a770a51 94 }
emilmont 55:d722ed6a4237 95
emilmont 44:24d45a770a51 96 /** A shorthand for read()
emilmont 44:24d45a770a51 97 */
emilmont 55:d722ed6a4237 98 operator int() {
emilmont 44:24d45a770a51 99 return read();
emilmont 44:24d45a770a51 100 }
emilmont 44:24d45a770a51 101
emilmont 44:24d45a770a51 102 private:
emilmont 44:24d45a770a51 103 port_t _port;
emilmont 44:24d45a770a51 104 };
emilmont 44:24d45a770a51 105
emilmont 44:24d45a770a51 106 } // namespace mbed
emilmont 44:24d45a770a51 107
emilmont 44:24d45a770a51 108 #endif
emilmont 44:24d45a770a51 109
emilmont 44:24d45a770a51 110 #endif