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Fork of mbed by mbed official

BusOut.h@54:71b101360fb9, 2013-01-08 (annotated)

Committer:
emilmont
Date:
Tue Jan 08 12:46:36 2013 +0000
Revision:
54:71b101360fb9
Parent:
44:24d45a770a51
Child:
59:0883845fe643
Support "stream as file" use case

Unify binary libraries

Update copyright

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.
simon.ford@mbed.co.uk 0:82220227f4fa 21 */
simon.ford@mbed.co.uk 0:82220227f4fa 22 #ifndef MBED_BUSOUT_H
simon.ford@mbed.co.uk 0:82220227f4fa 23 #define MBED_BUSOUT_H
simon.ford@mbed.co.uk 0:82220227f4fa 24
simon.ford@mbed.co.uk 0:82220227f4fa 25 #include "DigitalOut.h"
simon.ford@mbed.co.uk 0:82220227f4fa 26
simon.ford@mbed.co.uk 0:82220227f4fa 27 namespace mbed {
simon.ford@mbed.co.uk 0:82220227f4fa 28
emilmont 43:e2ed12d17f06 29 /** A digital output bus, used for setting the state of a collection of pins
simon.ford@mbed.co.uk 0:82220227f4fa 30 */
emilmont 44:24d45a770a51 31 class BusOut {
simon.ford@mbed.co.uk 0:82220227f4fa 32
simon.ford@mbed.co.uk 0:82220227f4fa 33 public:
simon.ford@mbed.co.uk 0:82220227f4fa 34
emilmont 43:e2ed12d17f06 35 /** Create an BusOut, connected to the specified pins
emilmont 43:e2ed12d17f06 36 *
emilmont 43:e2ed12d17f06 37 * @param p<n> DigitalOut pin to connect to bus bit <n> (p5-p30, NC)
rolf.meyer@arm.com 11:1c1ebd0324fa 38 *
emilmont 43:e2ed12d17f06 39 * @note
emilmont 44:24d45a770a51 40 * It is only required to specify as many pin variables as is required
emilmont 44:24d45a770a51 41 * for the bus; the rest will default to NC (not connected)
emilmont 44:24d45a770a51 42 */
rolf.meyer@arm.com 11:1c1ebd0324fa 43 BusOut(PinName p0, PinName p1 = NC, PinName p2 = NC, PinName p3 = NC,
rolf.meyer@arm.com 11:1c1ebd0324fa 44 PinName p4 = NC, PinName p5 = NC, PinName p6 = NC, PinName p7 = NC,
rolf.meyer@arm.com 11:1c1ebd0324fa 45 PinName p8 = NC, PinName p9 = NC, PinName p10 = NC, PinName p11 = NC,
emilmont 44:24d45a770a51 46 PinName p12 = NC, PinName p13 = NC, PinName p14 = NC, PinName p15 = NC);
simon.ford@mbed.co.uk 0:82220227f4fa 47
emilmont 44:24d45a770a51 48 BusOut(PinName pins[16]);
simon.ford@mbed.co.uk 5:62573be585e9 49
rolf.meyer@arm.com 11:1c1ebd0324fa 50 virtual ~BusOut();
emilmont 44:24d45a770a51 51
emilmont 43:e2ed12d17f06 52 /** Write the value to the output bus
rolf.meyer@arm.com 11:1c1ebd0324fa 53 *
emilmont 43:e2ed12d17f06 54 * @param value An integer specifying a bit to write for every corresponding DigitalOut pin
rolf.meyer@arm.com 11:1c1ebd0324fa 55 */
simon.ford@mbed.co.uk 0:82220227f4fa 56 void write(int value);
simon.ford@mbed.co.uk 0:82220227f4fa 57
emilmont 43:e2ed12d17f06 58 /** Read the value currently output on the bus
rolf.meyer@arm.com 11:1c1ebd0324fa 59 *
emilmont 43:e2ed12d17f06 60 * @returns
emilmont 43:e2ed12d17f06 61 * An integer with each bit corresponding to associated DigitalOut pin setting
rolf.meyer@arm.com 11:1c1ebd0324fa 62 */
simon.ford@mbed.co.uk 0:82220227f4fa 63 int read();
simon.ford@mbed.co.uk 0:82220227f4fa 64
rolf.meyer@arm.com 11:1c1ebd0324fa 65 #ifdef MBED_OPERATORS
emilmont 43:e2ed12d17f06 66 /** A shorthand for write()
rolf.meyer@arm.com 11:1c1ebd0324fa 67 */
rolf.meyer@arm.com 11:1c1ebd0324fa 68 BusOut& operator= (int v);
rolf.meyer@arm.com 11:1c1ebd0324fa 69 BusOut& operator= (BusOut& rhs);
simon.ford@mbed.co.uk 0:82220227f4fa 70
emilmont 43:e2ed12d17f06 71 /** A shorthand for read()
rolf.meyer@arm.com 11:1c1ebd0324fa 72 */
rolf.meyer@arm.com 11:1c1ebd0324fa 73 operator int();
rolf.meyer@arm.com 11:1c1ebd0324fa 74 #endif
rolf.meyer@arm.com 11:1c1ebd0324fa 75
simon.ford@mbed.co.uk 0:82220227f4fa 76 protected:
rolf.meyer@arm.com 11:1c1ebd0324fa 77 DigitalOut* _pin[16];
simon.ford@mbed.co.uk 0:82220227f4fa 78 };
simon.ford@mbed.co.uk 0:82220227f4fa 79
simon.ford@mbed.co.uk 0:82220227f4fa 80 } // namespace mbed
simon.ford@mbed.co.uk 0:82220227f4fa 81
simon.ford@mbed.co.uk 1:6b7f447ca868 82 #endif