Vipin Ranka / MGAS_GR_Peach

This is the final version of Mini Gateway for Automation and Security desgined for Renesas GR Peach Design Contest

Dependencies:   GR-PEACH_video GraphicsFramework HTTPServer R_BSP mbed-rpc mbed-rtos Socket lwip-eth lwip-sys lwip FATFileSystem

Fork of mbed-os-example-mbed5-blinky by mbed-os-examples

mbed-dev/drivers/CAN.cpp@12:9a20164dcc47, 2017-01-11 (annotated)

Committer:
vipinranka
Date:
Wed Jan 11 11:41:30 2017 +0000
Revision:
12:9a20164dcc47
This is the final version MGAS Project for Renesas GR Peach Design Contest

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vipinranka 12:9a20164dcc47 1 /* mbed Microcontroller Library
vipinranka 12:9a20164dcc47 2 * Copyright (c) 2006-2013 ARM Limited
vipinranka 12:9a20164dcc47 3 *
vipinranka 12:9a20164dcc47 4 * Licensed under the Apache License, Version 2.0 (the "License");
vipinranka 12:9a20164dcc47 5 * you may not use this file except in compliance with the License.
vipinranka 12:9a20164dcc47 6 * You may obtain a copy of the License at
vipinranka 12:9a20164dcc47 7 *
vipinranka 12:9a20164dcc47 8 * http://www.apache.org/licenses/LICENSE-2.0
vipinranka 12:9a20164dcc47 9 *
vipinranka 12:9a20164dcc47 10 * Unless required by applicable law or agreed to in writing, software
vipinranka 12:9a20164dcc47 11 * distributed under the License is distributed on an "AS IS" BASIS,
vipinranka 12:9a20164dcc47 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vipinranka 12:9a20164dcc47 13 * See the License for the specific language governing permissions and
vipinranka 12:9a20164dcc47 14 * limitations under the License.
vipinranka 12:9a20164dcc47 15 */
vipinranka 12:9a20164dcc47 16 #include "drivers/CAN.h"
vipinranka 12:9a20164dcc47 17
vipinranka 12:9a20164dcc47 18 #if DEVICE_CAN
vipinranka 12:9a20164dcc47 19
vipinranka 12:9a20164dcc47 20 #include "cmsis.h"
vipinranka 12:9a20164dcc47 21
vipinranka 12:9a20164dcc47 22 namespace mbed {
vipinranka 12:9a20164dcc47 23
vipinranka 12:9a20164dcc47 24 static void donothing() {}
vipinranka 12:9a20164dcc47 25
vipinranka 12:9a20164dcc47 26 CAN::CAN(PinName rd, PinName td) : _can(), _irq() {
vipinranka 12:9a20164dcc47 27 // No lock needed in constructor
vipinranka 12:9a20164dcc47 28
vipinranka 12:9a20164dcc47 29 for (int i = 0; i < sizeof _irq / sizeof _irq[0]; i++) {
vipinranka 12:9a20164dcc47 30 _irq[i].attach(donothing);
vipinranka 12:9a20164dcc47 31 }
vipinranka 12:9a20164dcc47 32
vipinranka 12:9a20164dcc47 33 can_init(&_can, rd, td);
vipinranka 12:9a20164dcc47 34 can_irq_init(&_can, (&CAN::_irq_handler), (uint32_t)this);
vipinranka 12:9a20164dcc47 35 }
vipinranka 12:9a20164dcc47 36
vipinranka 12:9a20164dcc47 37 CAN::~CAN() {
vipinranka 12:9a20164dcc47 38 // No lock needed in destructor
vipinranka 12:9a20164dcc47 39 can_irq_free(&_can);
vipinranka 12:9a20164dcc47 40 can_free(&_can);
vipinranka 12:9a20164dcc47 41 }
vipinranka 12:9a20164dcc47 42
vipinranka 12:9a20164dcc47 43 int CAN::frequency(int f) {
vipinranka 12:9a20164dcc47 44 lock();
vipinranka 12:9a20164dcc47 45 int ret = can_frequency(&_can, f);
vipinranka 12:9a20164dcc47 46 unlock();
vipinranka 12:9a20164dcc47 47 return ret;
vipinranka 12:9a20164dcc47 48 }
vipinranka 12:9a20164dcc47 49
vipinranka 12:9a20164dcc47 50 int CAN::write(CANMessage msg) {
vipinranka 12:9a20164dcc47 51 lock();
vipinranka 12:9a20164dcc47 52 int ret = can_write(&_can, msg, 0);
vipinranka 12:9a20164dcc47 53 unlock();
vipinranka 12:9a20164dcc47 54 return ret;
vipinranka 12:9a20164dcc47 55 }
vipinranka 12:9a20164dcc47 56
vipinranka 12:9a20164dcc47 57 int CAN::read(CANMessage &msg, int handle) {
vipinranka 12:9a20164dcc47 58 lock();
vipinranka 12:9a20164dcc47 59 int ret = can_read(&_can, &msg, handle);
vipinranka 12:9a20164dcc47 60 unlock();
vipinranka 12:9a20164dcc47 61 return ret;
vipinranka 12:9a20164dcc47 62 }
vipinranka 12:9a20164dcc47 63
vipinranka 12:9a20164dcc47 64 void CAN::reset() {
vipinranka 12:9a20164dcc47 65 lock();
vipinranka 12:9a20164dcc47 66 can_reset(&_can);
vipinranka 12:9a20164dcc47 67 unlock();
vipinranka 12:9a20164dcc47 68 }
vipinranka 12:9a20164dcc47 69
vipinranka 12:9a20164dcc47 70 unsigned char CAN::rderror() {
vipinranka 12:9a20164dcc47 71 lock();
vipinranka 12:9a20164dcc47 72 int ret = can_rderror(&_can);
vipinranka 12:9a20164dcc47 73 unlock();
vipinranka 12:9a20164dcc47 74 return ret;
vipinranka 12:9a20164dcc47 75 }
vipinranka 12:9a20164dcc47 76
vipinranka 12:9a20164dcc47 77 unsigned char CAN::tderror() {
vipinranka 12:9a20164dcc47 78 lock();
vipinranka 12:9a20164dcc47 79 int ret = can_tderror(&_can);
vipinranka 12:9a20164dcc47 80 unlock();
vipinranka 12:9a20164dcc47 81 return ret;
vipinranka 12:9a20164dcc47 82 }
vipinranka 12:9a20164dcc47 83
vipinranka 12:9a20164dcc47 84 void CAN::monitor(bool silent) {
vipinranka 12:9a20164dcc47 85 lock();
vipinranka 12:9a20164dcc47 86 can_monitor(&_can, (silent) ? 1 : 0);
vipinranka 12:9a20164dcc47 87 unlock();
vipinranka 12:9a20164dcc47 88 }
vipinranka 12:9a20164dcc47 89
vipinranka 12:9a20164dcc47 90 int CAN::mode(Mode mode) {
vipinranka 12:9a20164dcc47 91 lock();
vipinranka 12:9a20164dcc47 92 int ret = can_mode(&_can, (CanMode)mode);
vipinranka 12:9a20164dcc47 93 unlock();
vipinranka 12:9a20164dcc47 94 return ret;
vipinranka 12:9a20164dcc47 95 }
vipinranka 12:9a20164dcc47 96
vipinranka 12:9a20164dcc47 97 int CAN::filter(unsigned int id, unsigned int mask, CANFormat format, int handle) {
vipinranka 12:9a20164dcc47 98 lock();
vipinranka 12:9a20164dcc47 99 int ret = can_filter(&_can, id, mask, format, handle);
vipinranka 12:9a20164dcc47 100 unlock();
vipinranka 12:9a20164dcc47 101 return ret;
vipinranka 12:9a20164dcc47 102 }
vipinranka 12:9a20164dcc47 103
vipinranka 12:9a20164dcc47 104 void CAN::attach(Callback<void()> func, IrqType type) {
vipinranka 12:9a20164dcc47 105 lock();
vipinranka 12:9a20164dcc47 106 if (func) {
vipinranka 12:9a20164dcc47 107 _irq[(CanIrqType)type].attach(func);
vipinranka 12:9a20164dcc47 108 can_irq_set(&_can, (CanIrqType)type, 1);
vipinranka 12:9a20164dcc47 109 } else {
vipinranka 12:9a20164dcc47 110 _irq[(CanIrqType)type].attach(donothing);
vipinranka 12:9a20164dcc47 111 can_irq_set(&_can, (CanIrqType)type, 0);
vipinranka 12:9a20164dcc47 112 }
vipinranka 12:9a20164dcc47 113 unlock();
vipinranka 12:9a20164dcc47 114 }
vipinranka 12:9a20164dcc47 115
vipinranka 12:9a20164dcc47 116 void CAN::_irq_handler(uint32_t id, CanIrqType type) {
vipinranka 12:9a20164dcc47 117 CAN *handler = (CAN*)id;
vipinranka 12:9a20164dcc47 118 handler->_irq[type].call();
vipinranka 12:9a20164dcc47 119 }
vipinranka 12:9a20164dcc47 120
vipinranka 12:9a20164dcc47 121 void CAN::lock() {
vipinranka 12:9a20164dcc47 122 _mutex.lock();
vipinranka 12:9a20164dcc47 123 }
vipinranka 12:9a20164dcc47 124
vipinranka 12:9a20164dcc47 125 void CAN::unlock() {
vipinranka 12:9a20164dcc47 126 _mutex.unlock();
vipinranka 12:9a20164dcc47 127 }
vipinranka 12:9a20164dcc47 128
vipinranka 12:9a20164dcc47 129 } // namespace mbed
vipinranka 12:9a20164dcc47 130
vipinranka 12:9a20164dcc47 131 #endif