UVic Assistive Technology Lab / Mbed 2 deprecated DSLR_Camera_Gimbal

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Dependencies:   mbed ros_lib_kinetic

mbed/BusInOut.h@0:3a767f41cf04, 2018-01-31 (annotated)

Committer:
group-UVic-Assistive-Technolog
Date:
Wed Jan 31 05:24:12 2018 +0000
Revision:
0:3a767f41cf04
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
group-UVic-Assistive-Technolog 0:3a767f41cf04 1 /* mbed Microcontroller Library
group-UVic-Assistive-Technolog 0:3a767f41cf04 2 * Copyright (c) 2006-2013 ARM Limited
group-UVic-Assistive-Technolog 0:3a767f41cf04 3 *
group-UVic-Assistive-Technolog 0:3a767f41cf04 4 * Licensed under the Apache License, Version 2.0 (the "License");
group-UVic-Assistive-Technolog 0:3a767f41cf04 5 * you may not use this file except in compliance with the License.
group-UVic-Assistive-Technolog 0:3a767f41cf04 6 * You may obtain a copy of the License at
group-UVic-Assistive-Technolog 0:3a767f41cf04 7 *
group-UVic-Assistive-Technolog 0:3a767f41cf04 8 * http://www.apache.org/licenses/LICENSE-2.0
group-UVic-Assistive-Technolog 0:3a767f41cf04 9 *
group-UVic-Assistive-Technolog 0:3a767f41cf04 10 * Unless required by applicable law or agreed to in writing, software
group-UVic-Assistive-Technolog 0:3a767f41cf04 11 * distributed under the License is distributed on an "AS IS" BASIS,
group-UVic-Assistive-Technolog 0:3a767f41cf04 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
group-UVic-Assistive-Technolog 0:3a767f41cf04 13 * See the License for the specific language governing permissions and
group-UVic-Assistive-Technolog 0:3a767f41cf04 14 * limitations under the License.
group-UVic-Assistive-Technolog 0:3a767f41cf04 15 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 16 #ifndef MBED_BUSINOUT_H
group-UVic-Assistive-Technolog 0:3a767f41cf04 17 #define MBED_BUSINOUT_H
group-UVic-Assistive-Technolog 0:3a767f41cf04 18
group-UVic-Assistive-Technolog 0:3a767f41cf04 19 #include "DigitalInOut.h"
group-UVic-Assistive-Technolog 0:3a767f41cf04 20
group-UVic-Assistive-Technolog 0:3a767f41cf04 21 namespace mbed {
group-UVic-Assistive-Technolog 0:3a767f41cf04 22
group-UVic-Assistive-Technolog 0:3a767f41cf04 23 /** A digital input output bus, used for setting the state of a collection of pins
group-UVic-Assistive-Technolog 0:3a767f41cf04 24 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 25 class BusInOut {
group-UVic-Assistive-Technolog 0:3a767f41cf04 26
group-UVic-Assistive-Technolog 0:3a767f41cf04 27 public:
group-UVic-Assistive-Technolog 0:3a767f41cf04 28
group-UVic-Assistive-Technolog 0:3a767f41cf04 29 /** Create an BusInOut, connected to the specified pins
group-UVic-Assistive-Technolog 0:3a767f41cf04 30 *
group-UVic-Assistive-Technolog 0:3a767f41cf04 31 * @param p<n> DigitalInOut pin to connect to bus bit p<n> (p5-p30, NC)
group-UVic-Assistive-Technolog 0:3a767f41cf04 32 *
group-UVic-Assistive-Technolog 0:3a767f41cf04 33 * @note
group-UVic-Assistive-Technolog 0:3a767f41cf04 34 * It is only required to specify as many pin variables as is required
group-UVic-Assistive-Technolog 0:3a767f41cf04 35 * for the bus; the rest will default to NC (not connected)
group-UVic-Assistive-Technolog 0:3a767f41cf04 36 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 37 BusInOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC,
group-UVic-Assistive-Technolog 0:3a767f41cf04 38 PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC,
group-UVic-Assistive-Technolog 0:3a767f41cf04 39 PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC,
group-UVic-Assistive-Technolog 0:3a767f41cf04 40 PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC);
group-UVic-Assistive-Technolog 0:3a767f41cf04 41
group-UVic-Assistive-Technolog 0:3a767f41cf04 42 BusInOut(PinName pins[16]);
group-UVic-Assistive-Technolog 0:3a767f41cf04 43
group-UVic-Assistive-Technolog 0:3a767f41cf04 44 virtual ~BusInOut();
group-UVic-Assistive-Technolog 0:3a767f41cf04 45
group-UVic-Assistive-Technolog 0:3a767f41cf04 46 /* Group: Access Methods */
group-UVic-Assistive-Technolog 0:3a767f41cf04 47
group-UVic-Assistive-Technolog 0:3a767f41cf04 48 /** Write the value to the output bus
group-UVic-Assistive-Technolog 0:3a767f41cf04 49 *
group-UVic-Assistive-Technolog 0:3a767f41cf04 50 * @param value An integer specifying a bit to write for every corresponding DigitalInOut pin
group-UVic-Assistive-Technolog 0:3a767f41cf04 51 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 52 void write(int value);
group-UVic-Assistive-Technolog 0:3a767f41cf04 53
group-UVic-Assistive-Technolog 0:3a767f41cf04 54 /** Read the value currently output on the bus
group-UVic-Assistive-Technolog 0:3a767f41cf04 55 *
group-UVic-Assistive-Technolog 0:3a767f41cf04 56 * @returns
group-UVic-Assistive-Technolog 0:3a767f41cf04 57 * An integer with each bit corresponding to associated DigitalInOut pin setting
group-UVic-Assistive-Technolog 0:3a767f41cf04 58 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 59 int read();
group-UVic-Assistive-Technolog 0:3a767f41cf04 60
group-UVic-Assistive-Technolog 0:3a767f41cf04 61 /** Set as an output
group-UVic-Assistive-Technolog 0:3a767f41cf04 62 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 63 void output();
group-UVic-Assistive-Technolog 0:3a767f41cf04 64
group-UVic-Assistive-Technolog 0:3a767f41cf04 65 /** Set as an input
group-UVic-Assistive-Technolog 0:3a767f41cf04 66 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 67 void input();
group-UVic-Assistive-Technolog 0:3a767f41cf04 68
group-UVic-Assistive-Technolog 0:3a767f41cf04 69 /** Set the input pin mode
group-UVic-Assistive-Technolog 0:3a767f41cf04 70 *
group-UVic-Assistive-Technolog 0:3a767f41cf04 71 * @param mode PullUp, PullDown, PullNone
group-UVic-Assistive-Technolog 0:3a767f41cf04 72 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 73 void mode(PinMode pull);
group-UVic-Assistive-Technolog 0:3a767f41cf04 74
group-UVic-Assistive-Technolog 0:3a767f41cf04 75 /** Binary mask of bus pins connected to actual pins (not NC pins)
group-UVic-Assistive-Technolog 0:3a767f41cf04 76 * If bus pin is in NC state make corresponding bit will be cleared (set to 0), else bit will be set to 1
group-UVic-Assistive-Technolog 0:3a767f41cf04 77 *
group-UVic-Assistive-Technolog 0:3a767f41cf04 78 * @returns
group-UVic-Assistive-Technolog 0:3a767f41cf04 79 * Binary mask of connected pins
group-UVic-Assistive-Technolog 0:3a767f41cf04 80 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 81 int mask() {
group-UVic-Assistive-Technolog 0:3a767f41cf04 82 return _nc_mask;
group-UVic-Assistive-Technolog 0:3a767f41cf04 83 }
group-UVic-Assistive-Technolog 0:3a767f41cf04 84
group-UVic-Assistive-Technolog 0:3a767f41cf04 85 #ifdef MBED_OPERATORS
group-UVic-Assistive-Technolog 0:3a767f41cf04 86 /** A shorthand for write()
group-UVic-Assistive-Technolog 0:3a767f41cf04 87 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 88 BusInOut& operator= (int v);
group-UVic-Assistive-Technolog 0:3a767f41cf04 89 BusInOut& operator= (BusInOut& rhs);
group-UVic-Assistive-Technolog 0:3a767f41cf04 90
group-UVic-Assistive-Technolog 0:3a767f41cf04 91 /** Access to particular bit in random-iterator fashion
group-UVic-Assistive-Technolog 0:3a767f41cf04 92 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 93 DigitalInOut& operator[] (int index);
group-UVic-Assistive-Technolog 0:3a767f41cf04 94
group-UVic-Assistive-Technolog 0:3a767f41cf04 95 /** A shorthand for read()
group-UVic-Assistive-Technolog 0:3a767f41cf04 96 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 97 operator int();
group-UVic-Assistive-Technolog 0:3a767f41cf04 98 #endif
group-UVic-Assistive-Technolog 0:3a767f41cf04 99
group-UVic-Assistive-Technolog 0:3a767f41cf04 100 protected:
group-UVic-Assistive-Technolog 0:3a767f41cf04 101 DigitalInOut* _pin[16];
group-UVic-Assistive-Technolog 0:3a767f41cf04 102
group-UVic-Assistive-Technolog 0:3a767f41cf04 103 /** Mask of bus's NC pins
group-UVic-Assistive-Technolog 0:3a767f41cf04 104 * If bit[n] is set to 1 - pin is connected
group-UVic-Assistive-Technolog 0:3a767f41cf04 105 * if bit[n] is cleared - pin is not connected (NC)
group-UVic-Assistive-Technolog 0:3a767f41cf04 106 */
group-UVic-Assistive-Technolog 0:3a767f41cf04 107 int _nc_mask;
group-UVic-Assistive-Technolog 0:3a767f41cf04 108
group-UVic-Assistive-Technolog 0:3a767f41cf04 109 /* disallow copy constructor and assignment operators */
group-UVic-Assistive-Technolog 0:3a767f41cf04 110 private:
group-UVic-Assistive-Technolog 0:3a767f41cf04 111 BusInOut(const BusInOut&);
group-UVic-Assistive-Technolog 0:3a767f41cf04 112 BusInOut & operator = (const BusInOut&);
group-UVic-Assistive-Technolog 0:3a767f41cf04 113 };
group-UVic-Assistive-Technolog 0:3a767f41cf04 114
group-UVic-Assistive-Technolog 0:3a767f41cf04 115 } // namespace mbed
group-UVic-Assistive-Technolog 0:3a767f41cf04 116
group-UVic-Assistive-Technolog 0:3a767f41cf04 117 #endif