Bob Seque / mbed-dev

mbed library sources. Supersedes mbed-src.

Fork of mbed-dev by mbed official

api/Ethernet.h@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 0:9b334a45a8ff 3 *
bogdanm 0:9b334a45a8ff 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 0:9b334a45a8ff 5 * you may not use this file except in compliance with the License.
bogdanm 0:9b334a45a8ff 6 * You may obtain a copy of the License at
bogdanm 0:9b334a45a8ff 7 *
bogdanm 0:9b334a45a8ff 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 0:9b334a45a8ff 9 *
bogdanm 0:9b334a45a8ff 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 0:9b334a45a8ff 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 0:9b334a45a8ff 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 0:9b334a45a8ff 13 * See the License for the specific language governing permissions and
bogdanm 0:9b334a45a8ff 14 * limitations under the License.
bogdanm 0:9b334a45a8ff 15 */
bogdanm 0:9b334a45a8ff 16 #ifndef MBED_ETHERNET_H
bogdanm 0:9b334a45a8ff 17 #define MBED_ETHERNET_H
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 #include "platform.h"
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21 #if DEVICE_ETHERNET
bogdanm 0:9b334a45a8ff 22
bogdanm 0:9b334a45a8ff 23 namespace mbed {
bogdanm 0:9b334a45a8ff 24
bogdanm 0:9b334a45a8ff 25 /** An ethernet interface, to use with the ethernet pins.
bogdanm 0:9b334a45a8ff 26 *
bogdanm 0:9b334a45a8ff 27 * Example:
bogdanm 0:9b334a45a8ff 28 * @code
bogdanm 0:9b334a45a8ff 29 * // Read destination and source from every ethernet packet
bogdanm 0:9b334a45a8ff 30 *
bogdanm 0:9b334a45a8ff 31 * #include "mbed.h"
bogdanm 0:9b334a45a8ff 32 *
bogdanm 0:9b334a45a8ff 33 * Ethernet eth;
bogdanm 0:9b334a45a8ff 34 *
bogdanm 0:9b334a45a8ff 35 * int main() {
bogdanm 0:9b334a45a8ff 36 * char buf[0x600];
bogdanm 0:9b334a45a8ff 37 *
bogdanm 0:9b334a45a8ff 38 * while(1) {
bogdanm 0:9b334a45a8ff 39 * int size = eth.receive();
bogdanm 0:9b334a45a8ff 40 * if(size > 0) {
bogdanm 0:9b334a45a8ff 41 * eth.read(buf, size);
bogdanm 0:9b334a45a8ff 42 * printf("Destination: %02X:%02X:%02X:%02X:%02X:%02X\n",
bogdanm 0:9b334a45a8ff 43 * buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
bogdanm 0:9b334a45a8ff 44 * printf("Source: %02X:%02X:%02X:%02X:%02X:%02X\n",
bogdanm 0:9b334a45a8ff 45 * buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);
bogdanm 0:9b334a45a8ff 46 * }
bogdanm 0:9b334a45a8ff 47 *
bogdanm 0:9b334a45a8ff 48 * wait(1);
bogdanm 0:9b334a45a8ff 49 * }
bogdanm 0:9b334a45a8ff 50 * }
bogdanm 0:9b334a45a8ff 51 * @endcode
bogdanm 0:9b334a45a8ff 52 */
bogdanm 0:9b334a45a8ff 53 class Ethernet {
bogdanm 0:9b334a45a8ff 54
bogdanm 0:9b334a45a8ff 55 public:
bogdanm 0:9b334a45a8ff 56
bogdanm 0:9b334a45a8ff 57 /** Initialise the ethernet interface.
bogdanm 0:9b334a45a8ff 58 */
bogdanm 0:9b334a45a8ff 59 Ethernet();
bogdanm 0:9b334a45a8ff 60
bogdanm 0:9b334a45a8ff 61 /** Powers the hardware down.
bogdanm 0:9b334a45a8ff 62 */
bogdanm 0:9b334a45a8ff 63 virtual ~Ethernet();
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 enum Mode {
bogdanm 0:9b334a45a8ff 66 AutoNegotiate,
bogdanm 0:9b334a45a8ff 67 HalfDuplex10,
bogdanm 0:9b334a45a8ff 68 FullDuplex10,
bogdanm 0:9b334a45a8ff 69 HalfDuplex100,
bogdanm 0:9b334a45a8ff 70 FullDuplex100
bogdanm 0:9b334a45a8ff 71 };
bogdanm 0:9b334a45a8ff 72
bogdanm 0:9b334a45a8ff 73 /** Writes into an outgoing ethernet packet.
bogdanm 0:9b334a45a8ff 74 *
bogdanm 0:9b334a45a8ff 75 * It will append size bytes of data to the previously written bytes.
bogdanm 0:9b334a45a8ff 76 *
bogdanm 0:9b334a45a8ff 77 * @param data An array to write.
bogdanm 0:9b334a45a8ff 78 * @param size The size of data.
bogdanm 0:9b334a45a8ff 79 *
bogdanm 0:9b334a45a8ff 80 * @returns
bogdanm 0:9b334a45a8ff 81 * The number of written bytes.
bogdanm 0:9b334a45a8ff 82 */
bogdanm 0:9b334a45a8ff 83 int write(const char *data, int size);
bogdanm 0:9b334a45a8ff 84
bogdanm 0:9b334a45a8ff 85 /** Send an outgoing ethernet packet.
bogdanm 0:9b334a45a8ff 86 *
bogdanm 0:9b334a45a8ff 87 * After filling in the data in an ethernet packet it must be send.
bogdanm 0:9b334a45a8ff 88 * Send will provide a new packet to write to.
bogdanm 0:9b334a45a8ff 89 *
bogdanm 0:9b334a45a8ff 90 * @returns
bogdanm 0:9b334a45a8ff 91 * 0 if the sending was failed,
bogdanm 0:9b334a45a8ff 92 * or the size of the packet successfully sent.
bogdanm 0:9b334a45a8ff 93 */
bogdanm 0:9b334a45a8ff 94 int send();
bogdanm 0:9b334a45a8ff 95
bogdanm 0:9b334a45a8ff 96 /** Recevies an arrived ethernet packet.
bogdanm 0:9b334a45a8ff 97 *
bogdanm 0:9b334a45a8ff 98 * Receiving an ethernet packet will drop the last received ethernet packet
bogdanm 0:9b334a45a8ff 99 * and make a new ethernet packet ready to read.
bogdanm 0:9b334a45a8ff 100 * If no ethernet packet is arrived it will return 0.
bogdanm 0:9b334a45a8ff 101 *
bogdanm 0:9b334a45a8ff 102 * @returns
bogdanm 0:9b334a45a8ff 103 * 0 if no ethernet packet is arrived,
bogdanm 0:9b334a45a8ff 104 * or the size of the arrived packet.
bogdanm 0:9b334a45a8ff 105 */
bogdanm 0:9b334a45a8ff 106 int receive();
bogdanm 0:9b334a45a8ff 107
bogdanm 0:9b334a45a8ff 108 /** Read from an recevied ethernet packet.
bogdanm 0:9b334a45a8ff 109 *
bogdanm 0:9b334a45a8ff 110 * After receive returnd a number bigger than 0it is
bogdanm 0:9b334a45a8ff 111 * possible to read bytes from this packet.
bogdanm 0:9b334a45a8ff 112 * Read will write up to size bytes into data.
bogdanm 0:9b334a45a8ff 113 *
bogdanm 0:9b334a45a8ff 114 * It is possible to use read multible times.
bogdanm 0:9b334a45a8ff 115 * Each time read will start reading after the last read byte before.
bogdanm 0:9b334a45a8ff 116 *
bogdanm 0:9b334a45a8ff 117 * @returns
bogdanm 0:9b334a45a8ff 118 * The number of byte read.
bogdanm 0:9b334a45a8ff 119 */
bogdanm 0:9b334a45a8ff 120 int read(char *data, int size);
bogdanm 0:9b334a45a8ff 121
bogdanm 0:9b334a45a8ff 122 /** Gives the ethernet address of the mbed.
bogdanm 0:9b334a45a8ff 123 *
bogdanm 0:9b334a45a8ff 124 * @param mac Must be a pointer to a 6 byte char array to copy the ethernet address in.
bogdanm 0:9b334a45a8ff 125 */
bogdanm 0:9b334a45a8ff 126 void address(char *mac);
bogdanm 0:9b334a45a8ff 127
bogdanm 0:9b334a45a8ff 128 /** Returns if an ethernet link is pressent or not. It takes a wile after Ethernet initializion to show up.
bogdanm 0:9b334a45a8ff 129 *
bogdanm 0:9b334a45a8ff 130 * @returns
bogdanm 0:9b334a45a8ff 131 * 0 if no ethernet link is pressent,
bogdanm 0:9b334a45a8ff 132 * 1 if an ethernet link is pressent.
bogdanm 0:9b334a45a8ff 133 *
bogdanm 0:9b334a45a8ff 134 * Example:
bogdanm 0:9b334a45a8ff 135 * @code
bogdanm 0:9b334a45a8ff 136 * // Using the Ethernet link function
bogdanm 0:9b334a45a8ff 137 * #include "mbed.h"
bogdanm 0:9b334a45a8ff 138 *
bogdanm 0:9b334a45a8ff 139 * Ethernet eth;
bogdanm 0:9b334a45a8ff 140 *
bogdanm 0:9b334a45a8ff 141 * int main() {
bogdanm 0:9b334a45a8ff 142 * wait(1); // Needed after startup.
bogdanm 0:9b334a45a8ff 143 * if (eth.link()) {
bogdanm 0:9b334a45a8ff 144 * printf("online\n");
bogdanm 0:9b334a45a8ff 145 * } else {
bogdanm 0:9b334a45a8ff 146 * printf("offline\n");
bogdanm 0:9b334a45a8ff 147 * }
bogdanm 0:9b334a45a8ff 148 * }
bogdanm 0:9b334a45a8ff 149 * @endcode
bogdanm 0:9b334a45a8ff 150 */
bogdanm 0:9b334a45a8ff 151 int link();
bogdanm 0:9b334a45a8ff 152
bogdanm 0:9b334a45a8ff 153 /** Sets the speed and duplex parameters of an ethernet link
bogdanm 0:9b334a45a8ff 154 *
bogdanm 0:9b334a45a8ff 155 * - AutoNegotiate Auto negotiate speed and duplex
bogdanm 0:9b334a45a8ff 156 * - HalfDuplex10 10 Mbit, half duplex
bogdanm 0:9b334a45a8ff 157 * - FullDuplex10 10 Mbit, full duplex
bogdanm 0:9b334a45a8ff 158 * - HalfDuplex100 100 Mbit, half duplex
bogdanm 0:9b334a45a8ff 159 * - FullDuplex100 100 Mbit, full duplex
bogdanm 0:9b334a45a8ff 160 *
bogdanm 0:9b334a45a8ff 161 * @param mode the speed and duplex mode to set the link to:
bogdanm 0:9b334a45a8ff 162 */
bogdanm 0:9b334a45a8ff 163 void set_link(Mode mode);
bogdanm 0:9b334a45a8ff 164 };
bogdanm 0:9b334a45a8ff 165
bogdanm 0:9b334a45a8ff 166 } // namespace mbed
bogdanm 0:9b334a45a8ff 167
bogdanm 0:9b334a45a8ff 168 #endif
bogdanm 0:9b334a45a8ff 169
bogdanm 0:9b334a45a8ff 170 #endif