CDY version that shares functionality with Counter
Dependencies: SDFileSystem_HelloWorld mbed FATFileSystem
mbed/drivers/PortInOut.h@3:c547dba5d39b, 2018-11-05 (annotated)
- Committer:
- Charles David Young
- Date:
- Mon Nov 05 09:52:17 2018 -0700
- Revision:
- 3:c547dba5d39b
- Parent:
- 0:aa13e1c335cd
debug
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Charles David Young |
0:aa13e1c335cd | 1 | /* mbed Microcontroller Library |
Charles David Young |
0:aa13e1c335cd | 2 | * Copyright (c) 2006-2013 ARM Limited |
Charles David Young |
0:aa13e1c335cd | 3 | * |
Charles David Young |
0:aa13e1c335cd | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
Charles David Young |
0:aa13e1c335cd | 5 | * you may not use this file except in compliance with the License. |
Charles David Young |
0:aa13e1c335cd | 6 | * You may obtain a copy of the License at |
Charles David Young |
0:aa13e1c335cd | 7 | * |
Charles David Young |
0:aa13e1c335cd | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
Charles David Young |
0:aa13e1c335cd | 9 | * |
Charles David Young |
0:aa13e1c335cd | 10 | * Unless required by applicable law or agreed to in writing, software |
Charles David Young |
0:aa13e1c335cd | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
Charles David Young |
0:aa13e1c335cd | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
Charles David Young |
0:aa13e1c335cd | 13 | * See the License for the specific language governing permissions and |
Charles David Young |
0:aa13e1c335cd | 14 | * limitations under the License. |
Charles David Young |
0:aa13e1c335cd | 15 | */ |
Charles David Young |
0:aa13e1c335cd | 16 | #ifndef MBED_PORTINOUT_H |
Charles David Young |
0:aa13e1c335cd | 17 | #define MBED_PORTINOUT_H |
Charles David Young |
0:aa13e1c335cd | 18 | |
Charles David Young |
0:aa13e1c335cd | 19 | #include "platform/platform.h" |
Charles David Young |
0:aa13e1c335cd | 20 | |
Charles David Young |
0:aa13e1c335cd | 21 | #if DEVICE_PORTINOUT |
Charles David Young |
0:aa13e1c335cd | 22 | |
Charles David Young |
0:aa13e1c335cd | 23 | #include "hal/port_api.h" |
Charles David Young |
0:aa13e1c335cd | 24 | #include "platform/critical.h" |
Charles David Young |
0:aa13e1c335cd | 25 | |
Charles David Young |
0:aa13e1c335cd | 26 | namespace mbed { |
Charles David Young |
0:aa13e1c335cd | 27 | /** \addtogroup drivers */ |
Charles David Young |
0:aa13e1c335cd | 28 | /** @{*/ |
Charles David Young |
0:aa13e1c335cd | 29 | |
Charles David Young |
0:aa13e1c335cd | 30 | /** A multiple pin digital in/out used to set/read multiple bi-directional pins |
Charles David Young |
0:aa13e1c335cd | 31 | * |
Charles David Young |
0:aa13e1c335cd | 32 | * @Note Synchronization level: Interrupt safe |
Charles David Young |
0:aa13e1c335cd | 33 | */ |
Charles David Young |
0:aa13e1c335cd | 34 | class PortInOut { |
Charles David Young |
0:aa13e1c335cd | 35 | public: |
Charles David Young |
0:aa13e1c335cd | 36 | |
Charles David Young |
0:aa13e1c335cd | 37 | /** Create an PortInOut, connected to the specified port |
Charles David Young |
0:aa13e1c335cd | 38 | * |
Charles David Young |
0:aa13e1c335cd | 39 | * @param port Port to connect to (Port0-Port5) |
Charles David Young |
0:aa13e1c335cd | 40 | * @param mask A bitmask to identify which bits in the port should be included (0 - ignore) |
Charles David Young |
0:aa13e1c335cd | 41 | */ |
Charles David Young |
0:aa13e1c335cd | 42 | PortInOut(PortName port, int mask = 0xFFFFFFFF) { |
Charles David Young |
0:aa13e1c335cd | 43 | core_util_critical_section_enter(); |
Charles David Young |
0:aa13e1c335cd | 44 | port_init(&_port, port, mask, PIN_INPUT); |
Charles David Young |
0:aa13e1c335cd | 45 | core_util_critical_section_exit(); |
Charles David Young |
0:aa13e1c335cd | 46 | } |
Charles David Young |
0:aa13e1c335cd | 47 | |
Charles David Young |
0:aa13e1c335cd | 48 | /** Write the value to the output port |
Charles David Young |
0:aa13e1c335cd | 49 | * |
Charles David Young |
0:aa13e1c335cd | 50 | * @param value An integer specifying a bit to write for every corresponding port pin |
Charles David Young |
0:aa13e1c335cd | 51 | */ |
Charles David Young |
0:aa13e1c335cd | 52 | void write(int value) { |
Charles David Young |
0:aa13e1c335cd | 53 | port_write(&_port, value); |
Charles David Young |
0:aa13e1c335cd | 54 | } |
Charles David Young |
0:aa13e1c335cd | 55 | |
Charles David Young |
0:aa13e1c335cd | 56 | /** Read the value currently output on the port |
Charles David Young |
0:aa13e1c335cd | 57 | * |
Charles David Young |
0:aa13e1c335cd | 58 | * @returns |
Charles David Young |
0:aa13e1c335cd | 59 | * An integer with each bit corresponding to associated port pin setting |
Charles David Young |
0:aa13e1c335cd | 60 | */ |
Charles David Young |
0:aa13e1c335cd | 61 | int read() { |
Charles David Young |
0:aa13e1c335cd | 62 | return port_read(&_port); |
Charles David Young |
0:aa13e1c335cd | 63 | } |
Charles David Young |
0:aa13e1c335cd | 64 | |
Charles David Young |
0:aa13e1c335cd | 65 | /** Set as an output |
Charles David Young |
0:aa13e1c335cd | 66 | */ |
Charles David Young |
0:aa13e1c335cd | 67 | void output() { |
Charles David Young |
0:aa13e1c335cd | 68 | core_util_critical_section_enter(); |
Charles David Young |
0:aa13e1c335cd | 69 | port_dir(&_port, PIN_OUTPUT); |
Charles David Young |
0:aa13e1c335cd | 70 | core_util_critical_section_exit(); |
Charles David Young |
0:aa13e1c335cd | 71 | } |
Charles David Young |
0:aa13e1c335cd | 72 | |
Charles David Young |
0:aa13e1c335cd | 73 | /** Set as an input |
Charles David Young |
0:aa13e1c335cd | 74 | */ |
Charles David Young |
0:aa13e1c335cd | 75 | void input() { |
Charles David Young |
0:aa13e1c335cd | 76 | core_util_critical_section_enter(); |
Charles David Young |
0:aa13e1c335cd | 77 | port_dir(&_port, PIN_INPUT); |
Charles David Young |
0:aa13e1c335cd | 78 | core_util_critical_section_exit(); |
Charles David Young |
0:aa13e1c335cd | 79 | } |
Charles David Young |
0:aa13e1c335cd | 80 | |
Charles David Young |
0:aa13e1c335cd | 81 | /** Set the input pin mode |
Charles David Young |
0:aa13e1c335cd | 82 | * |
Charles David Young |
0:aa13e1c335cd | 83 | * @param mode PullUp, PullDown, PullNone, OpenDrain |
Charles David Young |
0:aa13e1c335cd | 84 | */ |
Charles David Young |
0:aa13e1c335cd | 85 | void mode(PinMode mode) { |
Charles David Young |
0:aa13e1c335cd | 86 | core_util_critical_section_enter(); |
Charles David Young |
0:aa13e1c335cd | 87 | port_mode(&_port, mode); |
Charles David Young |
0:aa13e1c335cd | 88 | core_util_critical_section_exit(); |
Charles David Young |
0:aa13e1c335cd | 89 | } |
Charles David Young |
0:aa13e1c335cd | 90 | |
Charles David Young |
0:aa13e1c335cd | 91 | /** A shorthand for write() |
Charles David Young |
0:aa13e1c335cd | 92 | */ |
Charles David Young |
0:aa13e1c335cd | 93 | PortInOut& operator= (int value) { |
Charles David Young |
0:aa13e1c335cd | 94 | write(value); |
Charles David Young |
0:aa13e1c335cd | 95 | return *this; |
Charles David Young |
0:aa13e1c335cd | 96 | } |
Charles David Young |
0:aa13e1c335cd | 97 | |
Charles David Young |
0:aa13e1c335cd | 98 | PortInOut& operator= (PortInOut& rhs) { |
Charles David Young |
0:aa13e1c335cd | 99 | write(rhs.read()); |
Charles David Young |
0:aa13e1c335cd | 100 | return *this; |
Charles David Young |
0:aa13e1c335cd | 101 | } |
Charles David Young |
0:aa13e1c335cd | 102 | |
Charles David Young |
0:aa13e1c335cd | 103 | /** A shorthand for read() |
Charles David Young |
0:aa13e1c335cd | 104 | */ |
Charles David Young |
0:aa13e1c335cd | 105 | operator int() { |
Charles David Young |
0:aa13e1c335cd | 106 | return read(); |
Charles David Young |
0:aa13e1c335cd | 107 | } |
Charles David Young |
0:aa13e1c335cd | 108 | |
Charles David Young |
0:aa13e1c335cd | 109 | private: |
Charles David Young |
0:aa13e1c335cd | 110 | port_t _port; |
Charles David Young |
0:aa13e1c335cd | 111 | }; |
Charles David Young |
0:aa13e1c335cd | 112 | |
Charles David Young |
0:aa13e1c335cd | 113 | } // namespace mbed |
Charles David Young |
0:aa13e1c335cd | 114 | |
Charles David Young |
0:aa13e1c335cd | 115 | #endif |
Charles David Young |
0:aa13e1c335cd | 116 | |
Charles David Young |
0:aa13e1c335cd | 117 | #endif |
Charles David Young |
0:aa13e1c335cd | 118 | |
Charles David Young |
0:aa13e1c335cd | 119 | /** @}*/ |