mbed official / mbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

PortInOut.h@122:f9eeca106725, 2016-07-07 (annotated)

Committer:
Kojto
Date:
Thu Jul 07 14:34:11 2016 +0100
Revision:
122:f9eeca106725
Parent:
65:5798e58a58b1 
Release 122 of the mbed library



Changes:

- new targets - Nucleo L432KC, Beetle, Nucleo F446ZE, Nucleo L011K4

- Thread safety addition - mbed API should contain a statement about thread safety

- critical section API addition

- CAS API (core_util_atomic_incr/decr)

- DEVICE_ are generated from targets.json file, device.h deprecated

- Callback replaces FunctionPointer to provide std like interface

- mbed HAL API docs improvements

- toolchain - prexif attributes with MBED_

            - add new attributes - packed, weak, forcedinline, align

- target.json - contains targets definitions

- ST - L1XX - Cube update to 1.5

     - SPI clock selection fix (clock from APB domain)

     - F7 - Cube update v1.4.0

     - L0 -  baudrate init fix

     - L1 - Cube update v1.5

     - F3 - baudrate init fix, 3 targets CAN support

     - F4 - Cube update v1.12.0, 3 targets CAN support

     - L4XX - Cube update v1.5.1

     - F0 - update Cube to v1.5.0

     - L4 - 2 targets (L476RG/VG) CAN support

- NXP - pwm clock fix for KSDK2 MCU

      - LPC2368 - remove ARM toolchain support - due to regression

      - KSDK2 - fix SPI , I2C address and repeat start

- Silabs - some fixes backported from mbed 3

- Renesas - RZ_A1H - SystemCoreClockUpdate addition

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 65:5798e58a58b1 1 /* mbed Microcontroller Library
bogdanm 65:5798e58a58b1 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 65:5798e58a58b1 3 *
bogdanm 65:5798e58a58b1 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 65:5798e58a58b1 5 * you may not use this file except in compliance with the License.
bogdanm 65:5798e58a58b1 6 * You may obtain a copy of the License at
bogdanm 65:5798e58a58b1 7 *
bogdanm 65:5798e58a58b1 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 65:5798e58a58b1 9 *
bogdanm 65:5798e58a58b1 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 65:5798e58a58b1 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 65:5798e58a58b1 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 65:5798e58a58b1 13 * See the License for the specific language governing permissions and
bogdanm 65:5798e58a58b1 14 * limitations under the License.
bogdanm 65:5798e58a58b1 15 */
bogdanm 65:5798e58a58b1 16 #ifndef MBED_PORTINOUT_H
bogdanm 65:5798e58a58b1 17 #define MBED_PORTINOUT_H
bogdanm 65:5798e58a58b1 18
bogdanm 65:5798e58a58b1 19 #include "platform.h"
bogdanm 65:5798e58a58b1 20
bogdanm 65:5798e58a58b1 21 #if DEVICE_PORTINOUT
bogdanm 65:5798e58a58b1 22
bogdanm 65:5798e58a58b1 23 #include "port_api.h"
Kojto 122:f9eeca106725 24 #include "critical.h"
bogdanm 65:5798e58a58b1 25
bogdanm 65:5798e58a58b1 26 namespace mbed {
bogdanm 65:5798e58a58b1 27
bogdanm 65:5798e58a58b1 28 /** A multiple pin digital in/out used to set/read multiple bi-directional pins
Kojto 122:f9eeca106725 29 *
Kojto 122:f9eeca106725 30 * @Note Synchronization level: Interrupt safe
bogdanm 65:5798e58a58b1 31 */
bogdanm 65:5798e58a58b1 32 class PortInOut {
bogdanm 65:5798e58a58b1 33 public:
bogdanm 65:5798e58a58b1 34
bogdanm 65:5798e58a58b1 35 /** Create an PortInOut, connected to the specified port
bogdanm 65:5798e58a58b1 36 *
bogdanm 65:5798e58a58b1 37 * @param port Port to connect to (Port0-Port5)
bogdanm 65:5798e58a58b1 38 * @param mask A bitmask to identify which bits in the port should be included (0 - ignore)
bogdanm 65:5798e58a58b1 39 */
bogdanm 65:5798e58a58b1 40 PortInOut(PortName port, int mask = 0xFFFFFFFF) {
Kojto 122:f9eeca106725 41 core_util_critical_section_enter();
bogdanm 65:5798e58a58b1 42 port_init(&_port, port, mask, PIN_INPUT);
Kojto 122:f9eeca106725 43 core_util_critical_section_exit();
bogdanm 65:5798e58a58b1 44 }
bogdanm 65:5798e58a58b1 45
bogdanm 65:5798e58a58b1 46 /** Write the value to the output port
bogdanm 65:5798e58a58b1 47 *
bogdanm 65:5798e58a58b1 48 * @param value An integer specifying a bit to write for every corresponding port pin
bogdanm 65:5798e58a58b1 49 */
bogdanm 65:5798e58a58b1 50 void write(int value) {
bogdanm 65:5798e58a58b1 51 port_write(&_port, value);
bogdanm 65:5798e58a58b1 52 }
bogdanm 65:5798e58a58b1 53
bogdanm 65:5798e58a58b1 54 /** Read the value currently output on the port
bogdanm 65:5798e58a58b1 55 *
bogdanm 65:5798e58a58b1 56 * @returns
bogdanm 65:5798e58a58b1 57 * An integer with each bit corresponding to associated port pin setting
bogdanm 65:5798e58a58b1 58 */
bogdanm 65:5798e58a58b1 59 int read() {
bogdanm 65:5798e58a58b1 60 return port_read(&_port);
bogdanm 65:5798e58a58b1 61 }
bogdanm 65:5798e58a58b1 62
bogdanm 65:5798e58a58b1 63 /** Set as an output
bogdanm 65:5798e58a58b1 64 */
bogdanm 65:5798e58a58b1 65 void output() {
Kojto 122:f9eeca106725 66 core_util_critical_section_enter();
bogdanm 65:5798e58a58b1 67 port_dir(&_port, PIN_OUTPUT);
Kojto 122:f9eeca106725 68 core_util_critical_section_exit();
bogdanm 65:5798e58a58b1 69 }
bogdanm 65:5798e58a58b1 70
bogdanm 65:5798e58a58b1 71 /** Set as an input
bogdanm 65:5798e58a58b1 72 */
bogdanm 65:5798e58a58b1 73 void input() {
Kojto 122:f9eeca106725 74 core_util_critical_section_enter();
bogdanm 65:5798e58a58b1 75 port_dir(&_port, PIN_INPUT);
Kojto 122:f9eeca106725 76 core_util_critical_section_exit();
bogdanm 65:5798e58a58b1 77 }
bogdanm 65:5798e58a58b1 78
bogdanm 65:5798e58a58b1 79 /** Set the input pin mode
bogdanm 65:5798e58a58b1 80 *
bogdanm 65:5798e58a58b1 81 * @param mode PullUp, PullDown, PullNone, OpenDrain
bogdanm 65:5798e58a58b1 82 */
bogdanm 65:5798e58a58b1 83 void mode(PinMode mode) {
Kojto 122:f9eeca106725 84 core_util_critical_section_enter();
bogdanm 65:5798e58a58b1 85 port_mode(&_port, mode);
Kojto 122:f9eeca106725 86 core_util_critical_section_exit();
bogdanm 65:5798e58a58b1 87 }
bogdanm 65:5798e58a58b1 88
bogdanm 65:5798e58a58b1 89 /** A shorthand for write()
bogdanm 65:5798e58a58b1 90 */
bogdanm 65:5798e58a58b1 91 PortInOut& operator= (int value) {
bogdanm 65:5798e58a58b1 92 write(value);
bogdanm 65:5798e58a58b1 93 return *this;
bogdanm 65:5798e58a58b1 94 }
bogdanm 65:5798e58a58b1 95
bogdanm 65:5798e58a58b1 96 PortInOut& operator= (PortInOut& rhs) {
bogdanm 65:5798e58a58b1 97 write(rhs.read());
bogdanm 65:5798e58a58b1 98 return *this;
bogdanm 65:5798e58a58b1 99 }
bogdanm 65:5798e58a58b1 100
bogdanm 65:5798e58a58b1 101 /** A shorthand for read()
bogdanm 65:5798e58a58b1 102 */
bogdanm 65:5798e58a58b1 103 operator int() {
bogdanm 65:5798e58a58b1 104 return read();
bogdanm 65:5798e58a58b1 105 }
bogdanm 65:5798e58a58b1 106
bogdanm 65:5798e58a58b1 107 private:
bogdanm 65:5798e58a58b1 108 port_t _port;
bogdanm 65:5798e58a58b1 109 };
bogdanm 65:5798e58a58b1 110
bogdanm 65:5798e58a58b1 111 } // namespace mbed
bogdanm 65:5798e58a58b1 112
bogdanm 65:5798e58a58b1 113 #endif
bogdanm 65:5798e58a58b1 114
bogdanm 65:5798e58a58b1 115 #endif