takashi kadono / Mbed OS Nucleo_446

Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466

Dependencies:   ssd1331

mbed-os/drivers/CAN.cpp@3:f3764f852aa8, 2018-10-11 (annotated)

Committer:
kadonotakashi
Date:
Thu Oct 11 02:27:46 2018 +0000
Revision:
3:f3764f852aa8
Parent:
0:8fdf9a60065b 
Nucreo 446 + SSD1331 test version;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kadonotakashi 0:8fdf9a60065b 1 /* mbed Microcontroller Library
kadonotakashi 0:8fdf9a60065b 2 * Copyright (c) 2006-2013 ARM Limited
kadonotakashi 0:8fdf9a60065b 3 *
kadonotakashi 0:8fdf9a60065b 4 * Licensed under the Apache License, Version 2.0 (the "License");
kadonotakashi 0:8fdf9a60065b 5 * you may not use this file except in compliance with the License.
kadonotakashi 0:8fdf9a60065b 6 * You may obtain a copy of the License at
kadonotakashi 0:8fdf9a60065b 7 *
kadonotakashi 0:8fdf9a60065b 8 * http://www.apache.org/licenses/LICENSE-2.0
kadonotakashi 0:8fdf9a60065b 9 *
kadonotakashi 0:8fdf9a60065b 10 * Unless required by applicable law or agreed to in writing, software
kadonotakashi 0:8fdf9a60065b 11 * distributed under the License is distributed on an "AS IS" BASIS,
kadonotakashi 0:8fdf9a60065b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kadonotakashi 0:8fdf9a60065b 13 * See the License for the specific language governing permissions and
kadonotakashi 0:8fdf9a60065b 14 * limitations under the License.
kadonotakashi 0:8fdf9a60065b 15 */
kadonotakashi 0:8fdf9a60065b 16 #include "drivers/CAN.h"
kadonotakashi 0:8fdf9a60065b 17
kadonotakashi 0:8fdf9a60065b 18 #if DEVICE_CAN
kadonotakashi 0:8fdf9a60065b 19
kadonotakashi 0:8fdf9a60065b 20 #include "platform/mbed_power_mgmt.h"
kadonotakashi 0:8fdf9a60065b 21
kadonotakashi 0:8fdf9a60065b 22 namespace mbed {
kadonotakashi 0:8fdf9a60065b 23
kadonotakashi 0:8fdf9a60065b 24 CAN::CAN(PinName rd, PinName td) : _can(), _irq()
kadonotakashi 0:8fdf9a60065b 25 {
kadonotakashi 0:8fdf9a60065b 26 // No lock needed in constructor
kadonotakashi 0:8fdf9a60065b 27
kadonotakashi 0:8fdf9a60065b 28 for (size_t i = 0; i < sizeof _irq / sizeof _irq[0]; i++) {
kadonotakashi 0:8fdf9a60065b 29 _irq[i] = NULL;
kadonotakashi 0:8fdf9a60065b 30 }
kadonotakashi 0:8fdf9a60065b 31
kadonotakashi 0:8fdf9a60065b 32 can_init(&_can, rd, td);
kadonotakashi 0:8fdf9a60065b 33 can_irq_init(&_can, (&CAN::_irq_handler), (uint32_t)this);
kadonotakashi 0:8fdf9a60065b 34 }
kadonotakashi 0:8fdf9a60065b 35
kadonotakashi 0:8fdf9a60065b 36 CAN::CAN(PinName rd, PinName td, int hz) : _can(), _irq()
kadonotakashi 0:8fdf9a60065b 37 {
kadonotakashi 0:8fdf9a60065b 38 // No lock needed in constructor
kadonotakashi 0:8fdf9a60065b 39
kadonotakashi 0:8fdf9a60065b 40 for (size_t i = 0; i < sizeof _irq / sizeof _irq[0]; i++) {
kadonotakashi 0:8fdf9a60065b 41 _irq[i] = NULL;
kadonotakashi 0:8fdf9a60065b 42 }
kadonotakashi 0:8fdf9a60065b 43
kadonotakashi 0:8fdf9a60065b 44 can_init_freq(&_can, rd, td, hz);
kadonotakashi 0:8fdf9a60065b 45 can_irq_init(&_can, (&CAN::_irq_handler), (uint32_t)this);
kadonotakashi 0:8fdf9a60065b 46 }
kadonotakashi 0:8fdf9a60065b 47
kadonotakashi 0:8fdf9a60065b 48 CAN::~CAN()
kadonotakashi 0:8fdf9a60065b 49 {
kadonotakashi 0:8fdf9a60065b 50 // No lock needed in destructor
kadonotakashi 0:8fdf9a60065b 51
kadonotakashi 0:8fdf9a60065b 52 // Detaching interrupts releases the sleep lock if it was locked
kadonotakashi 0:8fdf9a60065b 53 for (int irq = 0; irq < IrqCnt; irq++) {
kadonotakashi 0:8fdf9a60065b 54 attach(NULL, (IrqType)irq);
kadonotakashi 0:8fdf9a60065b 55 }
kadonotakashi 0:8fdf9a60065b 56 can_irq_free(&_can);
kadonotakashi 0:8fdf9a60065b 57 can_free(&_can);
kadonotakashi 0:8fdf9a60065b 58 }
kadonotakashi 0:8fdf9a60065b 59
kadonotakashi 0:8fdf9a60065b 60 int CAN::frequency(int f)
kadonotakashi 0:8fdf9a60065b 61 {
kadonotakashi 0:8fdf9a60065b 62 lock();
kadonotakashi 0:8fdf9a60065b 63 int ret = can_frequency(&_can, f);
kadonotakashi 0:8fdf9a60065b 64 unlock();
kadonotakashi 0:8fdf9a60065b 65 return ret;
kadonotakashi 0:8fdf9a60065b 66 }
kadonotakashi 0:8fdf9a60065b 67
kadonotakashi 0:8fdf9a60065b 68 int CAN::write(CANMessage msg)
kadonotakashi 0:8fdf9a60065b 69 {
kadonotakashi 0:8fdf9a60065b 70 lock();
kadonotakashi 0:8fdf9a60065b 71 int ret = can_write(&_can, msg, 0);
kadonotakashi 0:8fdf9a60065b 72 unlock();
kadonotakashi 0:8fdf9a60065b 73 return ret;
kadonotakashi 0:8fdf9a60065b 74 }
kadonotakashi 0:8fdf9a60065b 75
kadonotakashi 0:8fdf9a60065b 76 int CAN::read(CANMessage &msg, int handle)
kadonotakashi 0:8fdf9a60065b 77 {
kadonotakashi 0:8fdf9a60065b 78 lock();
kadonotakashi 0:8fdf9a60065b 79 int ret = can_read(&_can, &msg, handle);
kadonotakashi 0:8fdf9a60065b 80 unlock();
kadonotakashi 0:8fdf9a60065b 81 return ret;
kadonotakashi 0:8fdf9a60065b 82 }
kadonotakashi 0:8fdf9a60065b 83
kadonotakashi 0:8fdf9a60065b 84 void CAN::reset()
kadonotakashi 0:8fdf9a60065b 85 {
kadonotakashi 0:8fdf9a60065b 86 lock();
kadonotakashi 0:8fdf9a60065b 87 can_reset(&_can);
kadonotakashi 0:8fdf9a60065b 88 unlock();
kadonotakashi 0:8fdf9a60065b 89 }
kadonotakashi 0:8fdf9a60065b 90
kadonotakashi 0:8fdf9a60065b 91 unsigned char CAN::rderror()
kadonotakashi 0:8fdf9a60065b 92 {
kadonotakashi 0:8fdf9a60065b 93 lock();
kadonotakashi 0:8fdf9a60065b 94 int ret = can_rderror(&_can);
kadonotakashi 0:8fdf9a60065b 95 unlock();
kadonotakashi 0:8fdf9a60065b 96 return ret;
kadonotakashi 0:8fdf9a60065b 97 }
kadonotakashi 0:8fdf9a60065b 98
kadonotakashi 0:8fdf9a60065b 99 unsigned char CAN::tderror()
kadonotakashi 0:8fdf9a60065b 100 {
kadonotakashi 0:8fdf9a60065b 101 lock();
kadonotakashi 0:8fdf9a60065b 102 int ret = can_tderror(&_can);
kadonotakashi 0:8fdf9a60065b 103 unlock();
kadonotakashi 0:8fdf9a60065b 104 return ret;
kadonotakashi 0:8fdf9a60065b 105 }
kadonotakashi 0:8fdf9a60065b 106
kadonotakashi 0:8fdf9a60065b 107 void CAN::monitor(bool silent)
kadonotakashi 0:8fdf9a60065b 108 {
kadonotakashi 0:8fdf9a60065b 109 lock();
kadonotakashi 0:8fdf9a60065b 110 can_monitor(&_can, (silent) ? 1 : 0);
kadonotakashi 0:8fdf9a60065b 111 unlock();
kadonotakashi 0:8fdf9a60065b 112 }
kadonotakashi 0:8fdf9a60065b 113
kadonotakashi 0:8fdf9a60065b 114 int CAN::mode(Mode mode)
kadonotakashi 0:8fdf9a60065b 115 {
kadonotakashi 0:8fdf9a60065b 116 lock();
kadonotakashi 0:8fdf9a60065b 117 int ret = can_mode(&_can, (CanMode)mode);
kadonotakashi 0:8fdf9a60065b 118 unlock();
kadonotakashi 0:8fdf9a60065b 119 return ret;
kadonotakashi 0:8fdf9a60065b 120 }
kadonotakashi 0:8fdf9a60065b 121
kadonotakashi 0:8fdf9a60065b 122 int CAN::filter(unsigned int id, unsigned int mask, CANFormat format, int handle)
kadonotakashi 0:8fdf9a60065b 123 {
kadonotakashi 0:8fdf9a60065b 124 lock();
kadonotakashi 0:8fdf9a60065b 125 int ret = can_filter(&_can, id, mask, format, handle);
kadonotakashi 0:8fdf9a60065b 126 unlock();
kadonotakashi 0:8fdf9a60065b 127 return ret;
kadonotakashi 0:8fdf9a60065b 128 }
kadonotakashi 0:8fdf9a60065b 129
kadonotakashi 0:8fdf9a60065b 130 void CAN::attach(Callback<void()> func, IrqType type)
kadonotakashi 0:8fdf9a60065b 131 {
kadonotakashi 0:8fdf9a60065b 132 lock();
kadonotakashi 0:8fdf9a60065b 133 if (func) {
kadonotakashi 0:8fdf9a60065b 134 // lock deep sleep only the first time
kadonotakashi 0:8fdf9a60065b 135 if (!_irq[(CanIrqType)type]) {
kadonotakashi 0:8fdf9a60065b 136 sleep_manager_lock_deep_sleep();
kadonotakashi 0:8fdf9a60065b 137 }
kadonotakashi 0:8fdf9a60065b 138 _irq[(CanIrqType)type] = func;
kadonotakashi 0:8fdf9a60065b 139 can_irq_set(&_can, (CanIrqType)type, 1);
kadonotakashi 0:8fdf9a60065b 140 } else {
kadonotakashi 0:8fdf9a60065b 141 // unlock deep sleep only the first time
kadonotakashi 0:8fdf9a60065b 142 if (_irq[(CanIrqType)type]) {
kadonotakashi 0:8fdf9a60065b 143 sleep_manager_unlock_deep_sleep();
kadonotakashi 0:8fdf9a60065b 144 }
kadonotakashi 0:8fdf9a60065b 145 _irq[(CanIrqType)type] = NULL;
kadonotakashi 0:8fdf9a60065b 146 can_irq_set(&_can, (CanIrqType)type, 0);
kadonotakashi 0:8fdf9a60065b 147 }
kadonotakashi 0:8fdf9a60065b 148 unlock();
kadonotakashi 0:8fdf9a60065b 149 }
kadonotakashi 0:8fdf9a60065b 150
kadonotakashi 0:8fdf9a60065b 151 void CAN::_irq_handler(uint32_t id, CanIrqType type)
kadonotakashi 0:8fdf9a60065b 152 {
kadonotakashi 0:8fdf9a60065b 153 CAN *handler = (CAN *)id;
kadonotakashi 0:8fdf9a60065b 154 if (handler->_irq[type]) {
kadonotakashi 0:8fdf9a60065b 155 handler->_irq[type].call();
kadonotakashi 0:8fdf9a60065b 156 }
kadonotakashi 0:8fdf9a60065b 157 }
kadonotakashi 0:8fdf9a60065b 158
kadonotakashi 0:8fdf9a60065b 159 void CAN::lock()
kadonotakashi 0:8fdf9a60065b 160 {
kadonotakashi 0:8fdf9a60065b 161 _mutex.lock();
kadonotakashi 0:8fdf9a60065b 162 }
kadonotakashi 0:8fdf9a60065b 163
kadonotakashi 0:8fdf9a60065b 164 void CAN::unlock()
kadonotakashi 0:8fdf9a60065b 165 {
kadonotakashi 0:8fdf9a60065b 166 _mutex.unlock();
kadonotakashi 0:8fdf9a60065b 167 }
kadonotakashi 0:8fdf9a60065b 168
kadonotakashi 0:8fdf9a60065b 169 } // namespace mbed
kadonotakashi 0:8fdf9a60065b 170
kadonotakashi 0:8fdf9a60065b 171 #endif