Knight KE / Mbed OS Game_Master

游戏王对战板，目前code还是空的

mbed-os/drivers/CAN.cpp@0:9b3d4731edbb, 2018-06-21 (annotated)

Committer:
WFKnight
Date:
Thu Jun 21 13:51:43 2018 +0000
Revision:
0:9b3d4731edbb
UART, RTOS, LED

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WFKnight 0:9b3d4731edbb 1 /* mbed Microcontroller Library
WFKnight 0:9b3d4731edbb 2 * Copyright (c) 2006-2013 ARM Limited
WFKnight 0:9b3d4731edbb 3 *
WFKnight 0:9b3d4731edbb 4 * Licensed under the Apache License, Version 2.0 (the "License");
WFKnight 0:9b3d4731edbb 5 * you may not use this file except in compliance with the License.
WFKnight 0:9b3d4731edbb 6 * You may obtain a copy of the License at
WFKnight 0:9b3d4731edbb 7 *
WFKnight 0:9b3d4731edbb 8 * http://www.apache.org/licenses/LICENSE-2.0
WFKnight 0:9b3d4731edbb 9 *
WFKnight 0:9b3d4731edbb 10 * Unless required by applicable law or agreed to in writing, software
WFKnight 0:9b3d4731edbb 11 * distributed under the License is distributed on an "AS IS" BASIS,
WFKnight 0:9b3d4731edbb 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
WFKnight 0:9b3d4731edbb 13 * See the License for the specific language governing permissions and
WFKnight 0:9b3d4731edbb 14 * limitations under the License.
WFKnight 0:9b3d4731edbb 15 */
WFKnight 0:9b3d4731edbb 16 #include "drivers/CAN.h"
WFKnight 0:9b3d4731edbb 17
WFKnight 0:9b3d4731edbb 18 #if DEVICE_CAN
WFKnight 0:9b3d4731edbb 19
WFKnight 0:9b3d4731edbb 20 #include "cmsis.h"
WFKnight 0:9b3d4731edbb 21 #include "platform/mbed_power_mgmt.h"
WFKnight 0:9b3d4731edbb 22
WFKnight 0:9b3d4731edbb 23 namespace mbed {
WFKnight 0:9b3d4731edbb 24
WFKnight 0:9b3d4731edbb 25 CAN::CAN(PinName rd, PinName td) : _can(), _irq() {
WFKnight 0:9b3d4731edbb 26 // No lock needed in constructor
WFKnight 0:9b3d4731edbb 27
WFKnight 0:9b3d4731edbb 28 for (size_t i = 0; i < sizeof _irq / sizeof _irq[0]; i++) {
WFKnight 0:9b3d4731edbb 29 _irq[i] = NULL;
WFKnight 0:9b3d4731edbb 30 }
WFKnight 0:9b3d4731edbb 31
WFKnight 0:9b3d4731edbb 32 can_init(&_can, rd, td);
WFKnight 0:9b3d4731edbb 33 can_irq_init(&_can, (&CAN::_irq_handler), (uint32_t)this);
WFKnight 0:9b3d4731edbb 34 }
WFKnight 0:9b3d4731edbb 35
WFKnight 0:9b3d4731edbb 36 CAN::CAN(PinName rd, PinName td, int hz) : _can(), _irq() {
WFKnight 0:9b3d4731edbb 37 // No lock needed in constructor
WFKnight 0:9b3d4731edbb 38
WFKnight 0:9b3d4731edbb 39 for (size_t i = 0; i < sizeof _irq / sizeof _irq[0]; i++) {
WFKnight 0:9b3d4731edbb 40 _irq[i] = NULL;
WFKnight 0:9b3d4731edbb 41 }
WFKnight 0:9b3d4731edbb 42
WFKnight 0:9b3d4731edbb 43 can_init_freq(&_can, rd, td, hz);
WFKnight 0:9b3d4731edbb 44 can_irq_init(&_can, (&CAN::_irq_handler), (uint32_t)this);
WFKnight 0:9b3d4731edbb 45 }
WFKnight 0:9b3d4731edbb 46
WFKnight 0:9b3d4731edbb 47 CAN::~CAN() {
WFKnight 0:9b3d4731edbb 48 // No lock needed in destructor
WFKnight 0:9b3d4731edbb 49
WFKnight 0:9b3d4731edbb 50 // Detaching interrupts releases the sleep lock if it was locked
WFKnight 0:9b3d4731edbb 51 for (int irq = 0; irq < IrqCnt; irq++) {
WFKnight 0:9b3d4731edbb 52 attach(NULL, (IrqType)irq);
WFKnight 0:9b3d4731edbb 53 }
WFKnight 0:9b3d4731edbb 54 can_irq_free(&_can);
WFKnight 0:9b3d4731edbb 55 can_free(&_can);
WFKnight 0:9b3d4731edbb 56 }
WFKnight 0:9b3d4731edbb 57
WFKnight 0:9b3d4731edbb 58 int CAN::frequency(int f) {
WFKnight 0:9b3d4731edbb 59 lock();
WFKnight 0:9b3d4731edbb 60 int ret = can_frequency(&_can, f);
WFKnight 0:9b3d4731edbb 61 unlock();
WFKnight 0:9b3d4731edbb 62 return ret;
WFKnight 0:9b3d4731edbb 63 }
WFKnight 0:9b3d4731edbb 64
WFKnight 0:9b3d4731edbb 65 int CAN::write(CANMessage msg) {
WFKnight 0:9b3d4731edbb 66 lock();
WFKnight 0:9b3d4731edbb 67 int ret = can_write(&_can, msg, 0);
WFKnight 0:9b3d4731edbb 68 unlock();
WFKnight 0:9b3d4731edbb 69 return ret;
WFKnight 0:9b3d4731edbb 70 }
WFKnight 0:9b3d4731edbb 71
WFKnight 0:9b3d4731edbb 72 int CAN::read(CANMessage &msg, int handle) {
WFKnight 0:9b3d4731edbb 73 lock();
WFKnight 0:9b3d4731edbb 74 int ret = can_read(&_can, &msg, handle);
WFKnight 0:9b3d4731edbb 75 unlock();
WFKnight 0:9b3d4731edbb 76 return ret;
WFKnight 0:9b3d4731edbb 77 }
WFKnight 0:9b3d4731edbb 78
WFKnight 0:9b3d4731edbb 79 void CAN::reset() {
WFKnight 0:9b3d4731edbb 80 lock();
WFKnight 0:9b3d4731edbb 81 can_reset(&_can);
WFKnight 0:9b3d4731edbb 82 unlock();
WFKnight 0:9b3d4731edbb 83 }
WFKnight 0:9b3d4731edbb 84
WFKnight 0:9b3d4731edbb 85 unsigned char CAN::rderror() {
WFKnight 0:9b3d4731edbb 86 lock();
WFKnight 0:9b3d4731edbb 87 int ret = can_rderror(&_can);
WFKnight 0:9b3d4731edbb 88 unlock();
WFKnight 0:9b3d4731edbb 89 return ret;
WFKnight 0:9b3d4731edbb 90 }
WFKnight 0:9b3d4731edbb 91
WFKnight 0:9b3d4731edbb 92 unsigned char CAN::tderror() {
WFKnight 0:9b3d4731edbb 93 lock();
WFKnight 0:9b3d4731edbb 94 int ret = can_tderror(&_can);
WFKnight 0:9b3d4731edbb 95 unlock();
WFKnight 0:9b3d4731edbb 96 return ret;
WFKnight 0:9b3d4731edbb 97 }
WFKnight 0:9b3d4731edbb 98
WFKnight 0:9b3d4731edbb 99 void CAN::monitor(bool silent) {
WFKnight 0:9b3d4731edbb 100 lock();
WFKnight 0:9b3d4731edbb 101 can_monitor(&_can, (silent) ? 1 : 0);
WFKnight 0:9b3d4731edbb 102 unlock();
WFKnight 0:9b3d4731edbb 103 }
WFKnight 0:9b3d4731edbb 104
WFKnight 0:9b3d4731edbb 105 int CAN::mode(Mode mode) {
WFKnight 0:9b3d4731edbb 106 lock();
WFKnight 0:9b3d4731edbb 107 int ret = can_mode(&_can, (CanMode)mode);
WFKnight 0:9b3d4731edbb 108 unlock();
WFKnight 0:9b3d4731edbb 109 return ret;
WFKnight 0:9b3d4731edbb 110 }
WFKnight 0:9b3d4731edbb 111
WFKnight 0:9b3d4731edbb 112 int CAN::filter(unsigned int id, unsigned int mask, CANFormat format, int handle) {
WFKnight 0:9b3d4731edbb 113 lock();
WFKnight 0:9b3d4731edbb 114 int ret = can_filter(&_can, id, mask, format, handle);
WFKnight 0:9b3d4731edbb 115 unlock();
WFKnight 0:9b3d4731edbb 116 return ret;
WFKnight 0:9b3d4731edbb 117 }
WFKnight 0:9b3d4731edbb 118
WFKnight 0:9b3d4731edbb 119 void CAN::attach(Callback<void()> func, IrqType type) {
WFKnight 0:9b3d4731edbb 120 lock();
WFKnight 0:9b3d4731edbb 121 if (func) {
WFKnight 0:9b3d4731edbb 122 // lock deep sleep only the first time
WFKnight 0:9b3d4731edbb 123 if (!_irq[(CanIrqType)type]) {
WFKnight 0:9b3d4731edbb 124 sleep_manager_lock_deep_sleep();
WFKnight 0:9b3d4731edbb 125 }
WFKnight 0:9b3d4731edbb 126 _irq[(CanIrqType)type] = func;
WFKnight 0:9b3d4731edbb 127 can_irq_set(&_can, (CanIrqType)type, 1);
WFKnight 0:9b3d4731edbb 128 } else {
WFKnight 0:9b3d4731edbb 129 // unlock deep sleep only the first time
WFKnight 0:9b3d4731edbb 130 if (_irq[(CanIrqType)type]) {
WFKnight 0:9b3d4731edbb 131 sleep_manager_unlock_deep_sleep();
WFKnight 0:9b3d4731edbb 132 }
WFKnight 0:9b3d4731edbb 133 _irq[(CanIrqType)type] = NULL;
WFKnight 0:9b3d4731edbb 134 can_irq_set(&_can, (CanIrqType)type, 0);
WFKnight 0:9b3d4731edbb 135 }
WFKnight 0:9b3d4731edbb 136 unlock();
WFKnight 0:9b3d4731edbb 137 }
WFKnight 0:9b3d4731edbb 138
WFKnight 0:9b3d4731edbb 139 void CAN::_irq_handler(uint32_t id, CanIrqType type) {
WFKnight 0:9b3d4731edbb 140 CAN *handler = (CAN*)id;
WFKnight 0:9b3d4731edbb 141 if (handler->_irq[type]) {
WFKnight 0:9b3d4731edbb 142 handler->_irq[type].call();
WFKnight 0:9b3d4731edbb 143 }
WFKnight 0:9b3d4731edbb 144 }
WFKnight 0:9b3d4731edbb 145
WFKnight 0:9b3d4731edbb 146 void CAN::lock() {
WFKnight 0:9b3d4731edbb 147 _mutex.lock();
WFKnight 0:9b3d4731edbb 148 }
WFKnight 0:9b3d4731edbb 149
WFKnight 0:9b3d4731edbb 150 void CAN::unlock() {
WFKnight 0:9b3d4731edbb 151 _mutex.unlock();
WFKnight 0:9b3d4731edbb 152 }
WFKnight 0:9b3d4731edbb 153
WFKnight 0:9b3d4731edbb 154 } // namespace mbed
WFKnight 0:9b3d4731edbb 155
WFKnight 0:9b3d4731edbb 156 #endif