ON Semiconductor / mbed-os

5.2.1 - Updated I2C files

Dependents:   mbed-TFT-example-NCS36510 mbed-Accelerometer-example-NCS36510 mbed-Accelerometer-example-NCS36510

drivers/CAN.cpp@0:098463de4c5d, 2017-01-25 (annotated)

Committer:
group-onsemi
Date:
Wed Jan 25 20:34:15 2017 +0000
Revision:
0:098463de4c5d
Initial commit

Who changed what in which revision?

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group-onsemi 0:098463de4c5d 1 /* mbed Microcontroller Library
group-onsemi 0:098463de4c5d 2 * Copyright (c) 2006-2013 ARM Limited
group-onsemi 0:098463de4c5d 3 *
group-onsemi 0:098463de4c5d 4 * Licensed under the Apache License, Version 2.0 (the "License");
group-onsemi 0:098463de4c5d 5 * you may not use this file except in compliance with the License.
group-onsemi 0:098463de4c5d 6 * You may obtain a copy of the License at
group-onsemi 0:098463de4c5d 7 *
group-onsemi 0:098463de4c5d 8 * http://www.apache.org/licenses/LICENSE-2.0
group-onsemi 0:098463de4c5d 9 *
group-onsemi 0:098463de4c5d 10 * Unless required by applicable law or agreed to in writing, software
group-onsemi 0:098463de4c5d 11 * distributed under the License is distributed on an "AS IS" BASIS,
group-onsemi 0:098463de4c5d 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
group-onsemi 0:098463de4c5d 13 * See the License for the specific language governing permissions and
group-onsemi 0:098463de4c5d 14 * limitations under the License.
group-onsemi 0:098463de4c5d 15 */
group-onsemi 0:098463de4c5d 16 #include "drivers/CAN.h"
group-onsemi 0:098463de4c5d 17
group-onsemi 0:098463de4c5d 18 #if DEVICE_CAN
group-onsemi 0:098463de4c5d 19
group-onsemi 0:098463de4c5d 20 #include "cmsis.h"
group-onsemi 0:098463de4c5d 21
group-onsemi 0:098463de4c5d 22 namespace mbed {
group-onsemi 0:098463de4c5d 23
group-onsemi 0:098463de4c5d 24 static void donothing() {}
group-onsemi 0:098463de4c5d 25
group-onsemi 0:098463de4c5d 26 CAN::CAN(PinName rd, PinName td) : _can(), _irq() {
group-onsemi 0:098463de4c5d 27 // No lock needed in constructor
group-onsemi 0:098463de4c5d 28
group-onsemi 0:098463de4c5d 29 for (int i = 0; i < sizeof _irq / sizeof _irq[0]; i++) {
group-onsemi 0:098463de4c5d 30 _irq[i].attach(donothing);
group-onsemi 0:098463de4c5d 31 }
group-onsemi 0:098463de4c5d 32
group-onsemi 0:098463de4c5d 33 can_init(&_can, rd, td);
group-onsemi 0:098463de4c5d 34 can_irq_init(&_can, (&CAN::_irq_handler), (uint32_t)this);
group-onsemi 0:098463de4c5d 35 }
group-onsemi 0:098463de4c5d 36
group-onsemi 0:098463de4c5d 37 CAN::~CAN() {
group-onsemi 0:098463de4c5d 38 // No lock needed in destructor
group-onsemi 0:098463de4c5d 39 can_irq_free(&_can);
group-onsemi 0:098463de4c5d 40 can_free(&_can);
group-onsemi 0:098463de4c5d 41 }
group-onsemi 0:098463de4c5d 42
group-onsemi 0:098463de4c5d 43 int CAN::frequency(int f) {
group-onsemi 0:098463de4c5d 44 lock();
group-onsemi 0:098463de4c5d 45 int ret = can_frequency(&_can, f);
group-onsemi 0:098463de4c5d 46 unlock();
group-onsemi 0:098463de4c5d 47 return ret;
group-onsemi 0:098463de4c5d 48 }
group-onsemi 0:098463de4c5d 49
group-onsemi 0:098463de4c5d 50 int CAN::write(CANMessage msg) {
group-onsemi 0:098463de4c5d 51 lock();
group-onsemi 0:098463de4c5d 52 int ret = can_write(&_can, msg, 0);
group-onsemi 0:098463de4c5d 53 unlock();
group-onsemi 0:098463de4c5d 54 return ret;
group-onsemi 0:098463de4c5d 55 }
group-onsemi 0:098463de4c5d 56
group-onsemi 0:098463de4c5d 57 int CAN::read(CANMessage &msg, int handle) {
group-onsemi 0:098463de4c5d 58 lock();
group-onsemi 0:098463de4c5d 59 int ret = can_read(&_can, &msg, handle);
group-onsemi 0:098463de4c5d 60 unlock();
group-onsemi 0:098463de4c5d 61 return ret;
group-onsemi 0:098463de4c5d 62 }
group-onsemi 0:098463de4c5d 63
group-onsemi 0:098463de4c5d 64 void CAN::reset() {
group-onsemi 0:098463de4c5d 65 lock();
group-onsemi 0:098463de4c5d 66 can_reset(&_can);
group-onsemi 0:098463de4c5d 67 unlock();
group-onsemi 0:098463de4c5d 68 }
group-onsemi 0:098463de4c5d 69
group-onsemi 0:098463de4c5d 70 unsigned char CAN::rderror() {
group-onsemi 0:098463de4c5d 71 lock();
group-onsemi 0:098463de4c5d 72 int ret = can_rderror(&_can);
group-onsemi 0:098463de4c5d 73 unlock();
group-onsemi 0:098463de4c5d 74 return ret;
group-onsemi 0:098463de4c5d 75 }
group-onsemi 0:098463de4c5d 76
group-onsemi 0:098463de4c5d 77 unsigned char CAN::tderror() {
group-onsemi 0:098463de4c5d 78 lock();
group-onsemi 0:098463de4c5d 79 int ret = can_tderror(&_can);
group-onsemi 0:098463de4c5d 80 unlock();
group-onsemi 0:098463de4c5d 81 return ret;
group-onsemi 0:098463de4c5d 82 }
group-onsemi 0:098463de4c5d 83
group-onsemi 0:098463de4c5d 84 void CAN::monitor(bool silent) {
group-onsemi 0:098463de4c5d 85 lock();
group-onsemi 0:098463de4c5d 86 can_monitor(&_can, (silent) ? 1 : 0);
group-onsemi 0:098463de4c5d 87 unlock();
group-onsemi 0:098463de4c5d 88 }
group-onsemi 0:098463de4c5d 89
group-onsemi 0:098463de4c5d 90 int CAN::mode(Mode mode) {
group-onsemi 0:098463de4c5d 91 lock();
group-onsemi 0:098463de4c5d 92 int ret = can_mode(&_can, (CanMode)mode);
group-onsemi 0:098463de4c5d 93 unlock();
group-onsemi 0:098463de4c5d 94 return ret;
group-onsemi 0:098463de4c5d 95 }
group-onsemi 0:098463de4c5d 96
group-onsemi 0:098463de4c5d 97 int CAN::filter(unsigned int id, unsigned int mask, CANFormat format, int handle) {
group-onsemi 0:098463de4c5d 98 lock();
group-onsemi 0:098463de4c5d 99 int ret = can_filter(&_can, id, mask, format, handle);
group-onsemi 0:098463de4c5d 100 unlock();
group-onsemi 0:098463de4c5d 101 return ret;
group-onsemi 0:098463de4c5d 102 }
group-onsemi 0:098463de4c5d 103
group-onsemi 0:098463de4c5d 104 void CAN::attach(Callback<void()> func, IrqType type) {
group-onsemi 0:098463de4c5d 105 lock();
group-onsemi 0:098463de4c5d 106 if (func) {
group-onsemi 0:098463de4c5d 107 _irq[(CanIrqType)type].attach(func);
group-onsemi 0:098463de4c5d 108 can_irq_set(&_can, (CanIrqType)type, 1);
group-onsemi 0:098463de4c5d 109 } else {
group-onsemi 0:098463de4c5d 110 _irq[(CanIrqType)type].attach(donothing);
group-onsemi 0:098463de4c5d 111 can_irq_set(&_can, (CanIrqType)type, 0);
group-onsemi 0:098463de4c5d 112 }
group-onsemi 0:098463de4c5d 113 unlock();
group-onsemi 0:098463de4c5d 114 }
group-onsemi 0:098463de4c5d 115
group-onsemi 0:098463de4c5d 116 void CAN::_irq_handler(uint32_t id, CanIrqType type) {
group-onsemi 0:098463de4c5d 117 CAN *handler = (CAN*)id;
group-onsemi 0:098463de4c5d 118 handler->_irq[type].call();
group-onsemi 0:098463de4c5d 119 }
group-onsemi 0:098463de4c5d 120
group-onsemi 0:098463de4c5d 121 void CAN::lock() {
group-onsemi 0:098463de4c5d 122 _mutex.lock();
group-onsemi 0:098463de4c5d 123 }
group-onsemi 0:098463de4c5d 124
group-onsemi 0:098463de4c5d 125 void CAN::unlock() {
group-onsemi 0:098463de4c5d 126 _mutex.unlock();
group-onsemi 0:098463de4c5d 127 }
group-onsemi 0:098463de4c5d 128
group-onsemi 0:098463de4c5d 129 } // namespace mbed
group-onsemi 0:098463de4c5d 130
group-onsemi 0:098463de4c5d 131 #endif