Mohamed Moawya / SnakeGame

test test test

Dependencies:   mbed

snake-test/mbed/drivers/PortIn.h@0:e4c5e6ec922e, 2020-05-25 (annotated)

Committer:
mohamedmoawya
Date:
Mon May 25 19:06:11 2020 +0000
Revision:
0:e4c5e6ec922e
snake game tteest

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mohamedmoawya 0:e4c5e6ec922e 1 /* mbed Microcontroller Library
mohamedmoawya 0:e4c5e6ec922e 2 * Copyright (c) 2006-2013 ARM Limited
mohamedmoawya 0:e4c5e6ec922e 3 *
mohamedmoawya 0:e4c5e6ec922e 4 * Licensed under the Apache License, Version 2.0 (the "License");
mohamedmoawya 0:e4c5e6ec922e 5 * you may not use this file except in compliance with the License.
mohamedmoawya 0:e4c5e6ec922e 6 * You may obtain a copy of the License at
mohamedmoawya 0:e4c5e6ec922e 7 *
mohamedmoawya 0:e4c5e6ec922e 8 * http://www.apache.org/licenses/LICENSE-2.0
mohamedmoawya 0:e4c5e6ec922e 9 *
mohamedmoawya 0:e4c5e6ec922e 10 * Unless required by applicable law or agreed to in writing, software
mohamedmoawya 0:e4c5e6ec922e 11 * distributed under the License is distributed on an "AS IS" BASIS,
mohamedmoawya 0:e4c5e6ec922e 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mohamedmoawya 0:e4c5e6ec922e 13 * See the License for the specific language governing permissions and
mohamedmoawya 0:e4c5e6ec922e 14 * limitations under the License.
mohamedmoawya 0:e4c5e6ec922e 15 */
mohamedmoawya 0:e4c5e6ec922e 16 #ifndef MBED_PORTIN_H
mohamedmoawya 0:e4c5e6ec922e 17 #define MBED_PORTIN_H
mohamedmoawya 0:e4c5e6ec922e 18
mohamedmoawya 0:e4c5e6ec922e 19 #include "platform/platform.h"
mohamedmoawya 0:e4c5e6ec922e 20
mohamedmoawya 0:e4c5e6ec922e 21 #if defined (DEVICE_PORTIN) || defined(DOXYGEN_ONLY)
mohamedmoawya 0:e4c5e6ec922e 22
mohamedmoawya 0:e4c5e6ec922e 23 #include "hal/port_api.h"
mohamedmoawya 0:e4c5e6ec922e 24 #include "platform/mbed_critical.h"
mohamedmoawya 0:e4c5e6ec922e 25
mohamedmoawya 0:e4c5e6ec922e 26 namespace mbed {
mohamedmoawya 0:e4c5e6ec922e 27 /** \addtogroup drivers */
mohamedmoawya 0:e4c5e6ec922e 28
mohamedmoawya 0:e4c5e6ec922e 29 /** A multiple pin digital input
mohamedmoawya 0:e4c5e6ec922e 30 *
mohamedmoawya 0:e4c5e6ec922e 31 * @note Synchronization level: Interrupt safe
mohamedmoawya 0:e4c5e6ec922e 32 *
mohamedmoawya 0:e4c5e6ec922e 33 * Example:
mohamedmoawya 0:e4c5e6ec922e 34 * @code
mohamedmoawya 0:e4c5e6ec922e 35 * // Turn on an LED if any pins of Port2[0:5] are high
mohamedmoawya 0:e4c5e6ec922e 36 *
mohamedmoawya 0:e4c5e6ec922e 37 * #include "mbed.h"
mohamedmoawya 0:e4c5e6ec922e 38 *
mohamedmoawya 0:e4c5e6ec922e 39 * PortIn p(Port2, 0x0000003F); // Port2 pins [0:5] only
mohamedmoawya 0:e4c5e6ec922e 40 * DigitalOut led(LED4);
mohamedmoawya 0:e4c5e6ec922e 41 *
mohamedmoawya 0:e4c5e6ec922e 42 * int main() {
mohamedmoawya 0:e4c5e6ec922e 43 * while(1) {
mohamedmoawya 0:e4c5e6ec922e 44 * int pins = p.read();
mohamedmoawya 0:e4c5e6ec922e 45 * if(pins) {
mohamedmoawya 0:e4c5e6ec922e 46 * led = 1;
mohamedmoawya 0:e4c5e6ec922e 47 * } else {
mohamedmoawya 0:e4c5e6ec922e 48 * led = 0;
mohamedmoawya 0:e4c5e6ec922e 49 * }
mohamedmoawya 0:e4c5e6ec922e 50 * }
mohamedmoawya 0:e4c5e6ec922e 51 * }
mohamedmoawya 0:e4c5e6ec922e 52 * @endcode
mohamedmoawya 0:e4c5e6ec922e 53 * @ingroup drivers
mohamedmoawya 0:e4c5e6ec922e 54 */
mohamedmoawya 0:e4c5e6ec922e 55 class PortIn {
mohamedmoawya 0:e4c5e6ec922e 56 public:
mohamedmoawya 0:e4c5e6ec922e 57
mohamedmoawya 0:e4c5e6ec922e 58 /** Create a PortIn, connected to the specified port
mohamedmoawya 0:e4c5e6ec922e 59 *
mohamedmoawya 0:e4c5e6ec922e 60 * @param port Port to connect to (as defined in target's PortNames.h)
mohamedmoawya 0:e4c5e6ec922e 61 * @param mask Bitmask defines which port pins should be an input (0 - ignore, 1 - include)
mohamedmoawya 0:e4c5e6ec922e 62 */
mohamedmoawya 0:e4c5e6ec922e 63 PortIn(PortName port, int mask = 0xFFFFFFFF)
mohamedmoawya 0:e4c5e6ec922e 64 {
mohamedmoawya 0:e4c5e6ec922e 65 core_util_critical_section_enter();
mohamedmoawya 0:e4c5e6ec922e 66 port_init(&_port, port, mask, PIN_INPUT);
mohamedmoawya 0:e4c5e6ec922e 67 core_util_critical_section_exit();
mohamedmoawya 0:e4c5e6ec922e 68 }
mohamedmoawya 0:e4c5e6ec922e 69
mohamedmoawya 0:e4c5e6ec922e 70 /** Read the value input to the port
mohamedmoawya 0:e4c5e6ec922e 71 *
mohamedmoawya 0:e4c5e6ec922e 72 * @returns
mohamedmoawya 0:e4c5e6ec922e 73 * An integer with each bit corresponding to the associated pin value
mohamedmoawya 0:e4c5e6ec922e 74 */
mohamedmoawya 0:e4c5e6ec922e 75 int read()
mohamedmoawya 0:e4c5e6ec922e 76 {
mohamedmoawya 0:e4c5e6ec922e 77 return port_read(&_port);
mohamedmoawya 0:e4c5e6ec922e 78 }
mohamedmoawya 0:e4c5e6ec922e 79
mohamedmoawya 0:e4c5e6ec922e 80 /** Set the input pin mode
mohamedmoawya 0:e4c5e6ec922e 81 *
mohamedmoawya 0:e4c5e6ec922e 82 * @param mode PullUp, PullDown, PullNone, OpenDrain
mohamedmoawya 0:e4c5e6ec922e 83 */
mohamedmoawya 0:e4c5e6ec922e 84 void mode(PinMode mode)
mohamedmoawya 0:e4c5e6ec922e 85 {
mohamedmoawya 0:e4c5e6ec922e 86 core_util_critical_section_enter();
mohamedmoawya 0:e4c5e6ec922e 87 port_mode(&_port, mode);
mohamedmoawya 0:e4c5e6ec922e 88 core_util_critical_section_exit();
mohamedmoawya 0:e4c5e6ec922e 89 }
mohamedmoawya 0:e4c5e6ec922e 90
mohamedmoawya 0:e4c5e6ec922e 91 /** A shorthand for read()
mohamedmoawya 0:e4c5e6ec922e 92 */
mohamedmoawya 0:e4c5e6ec922e 93 operator int()
mohamedmoawya 0:e4c5e6ec922e 94 {
mohamedmoawya 0:e4c5e6ec922e 95 return read();
mohamedmoawya 0:e4c5e6ec922e 96 }
mohamedmoawya 0:e4c5e6ec922e 97
mohamedmoawya 0:e4c5e6ec922e 98 private:
mohamedmoawya 0:e4c5e6ec922e 99 port_t _port;
mohamedmoawya 0:e4c5e6ec922e 100 };
mohamedmoawya 0:e4c5e6ec922e 101
mohamedmoawya 0:e4c5e6ec922e 102 } // namespace mbed
mohamedmoawya 0:e4c5e6ec922e 103
mohamedmoawya 0:e4c5e6ec922e 104 #endif
mohamedmoawya 0:e4c5e6ec922e 105
mohamedmoawya 0:e4c5e6ec922e 106 #endif