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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 205 | arune | 1 | /** |
| 2 | * |
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| 280 | arune | 3 | * |
| 730 | arune | 4 | * |
| 205 | arune | 5 | * @date 2006-11-21 |
| 280 | arune | 6 | * @author Jimmy Myhrman, Anders Runeson |
| 205 | arune | 7 | * |
| 8 | */ |
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| 9 | |||
| 10 | /*----------------------------------------------------------------------------- |
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| 11 | * Includes |
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| 12 | *---------------------------------------------------------------------------*/ |
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| 13 | /* system files */ |
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| 14 | #include <avr/io.h> |
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| 15 | #include <avr/interrupt.h> |
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| 16 | #include <avr/wdt.h> |
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| 17 | #include <stdio.h> |
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| 661 | arune | 18 | #include <string.h> |
| 19 | |||
| 1115 | arune | 20 | #include <canid.h> |
| 21 | #include <config.h> |
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| 205 | arune | 22 | /* lib files */ |
| 1115 | arune | 23 | #if USE_STDCAN == 1 |
| 24 | #include <stdcan.h> |
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| 25 | #else |
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| 661 | arune | 26 | #include <mcp2515.h> |
| 1115 | arune | 27 | #endif |
| 280 | arune | 28 | //#include <serial.h> |
| 205 | arune | 29 | #include <timebase.h> |
| 661 | arune | 30 | #include <mcu.h> |
| 205 | arune | 31 | #include <ip_arp_udp_tcp.h> |
| 32 | #include <enc28j60.h> |
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| 33 | #include <timeout.h> |
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| 34 | #include <avr_compat.h> |
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| 35 | #include <net.h> |
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| 36 | |||
| 680 | arune | 37 | static uint8_t mymac[6] = {ENC28J60_MAC1,ENC28J60_MAC2,ENC28J60_MAC3,ENC28J60_MAC4,ENC28J60_MAC5,ENC28J60_MAC6}; |
| 541 | arune | 38 | //static uint8_t myip[4] = {192,168,0,50}; |
| 680 | arune | 39 | static uint8_t myip[4] = {ENC28J60_IP1,ENC28J60_IP2,ENC28J60_IP3,ENC28J60_IP4}; |
| 280 | arune | 40 | static uint16_t rmCan2SerPrt =1100; // remote port for Can2Serial-data |
| 41 | static uint16_t locCan2SerPrt =1100; // listen port for Can2Serial-data |
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| 379 | arune | 42 | static uint8_t gotcan2serserver = 0; |
| 205 | arune | 43 | |
| 379 | arune | 44 | static uint8_t prgremotemac[6]; |
| 45 | static uint8_t prgremoteip[4]; |
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| 46 | |||
| 205 | arune | 47 | #define BUFFER_SIZE 250 |
| 48 | static uint8_t buf[BUFFER_SIZE+1]; |
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| 49 | |||
| 212 | arune | 50 | static uint8_t buffpoint; |
| 51 | |||
| 281 | arune | 52 | #define C2S_START_BYTE 253 |
| 53 | #define C2S_END_BYTE 250 |
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| 1304 | arune | 54 | #define C2S_PING_BYTE 251 |
| 281 | arune | 55 | |
| 1115 | arune | 56 | #if USE_STDCAN == 0 |
| 661 | arune | 57 | volatile Can_Message_t rxMsg; // Message storage |
| 58 | volatile uint8_t rxMsgFull; // Synchronization flag |
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| 1686 | runge | 59 | #endif |
| 60 | |||
| 1696 | arune | 61 | |
| 62 | /* |
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| 63 | #define SEND_BUFFER_SIZE 20 |
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| 64 | static char sendbuf[SEND_BUFFER_SIZE+1]; |
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| 65 | static uint16_t locDumperPrt =1200; // listen port |
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| 66 | static uint8_t gotdumpserver = 0; |
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| 67 | static uint16_t rmDumperPrt =1200; // remote port for dumping data |
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| 68 | static uint8_t remotemac[6]; |
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| 69 | static uint8_t remoteip[4]; |
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| 70 | */ |
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| 212 | arune | 71 | /*---------------------------------------------------------------------------- |
| 72 | * Putchar for udp |
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| 73 | * Implements a small buffer, sends packet over udp if buffer is full or |
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| 74 | * \n-char is sent. |
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| 75 | * Needs a timeout to force send. |
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| 76 | *--------------------------------------------------------------------------*/ |
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| 661 | arune | 77 | /*int udp_putchar(char c, FILE* stream) { |
| 379 | arune | 78 | if (gotdumpserver != 0) { |
| 212 | arune | 79 | sendbuf[buffpoint] = c; |
| 80 | buffpoint++; |
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| 81 | |||
| 82 | if (c == '\n' || buffpoint > SEND_BUFFER_SIZE) { |
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| 280 | arune | 83 | send_udp(buf, sendbuf, buffpoint, rmDumperPrt, remotemac, remoteip); |
| 212 | arune | 84 | buffpoint = 0; |
| 205 | arune | 85 | } |
| 86 | } |
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| 87 | return 0; |
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| 88 | } |
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| 89 | |||
| 90 | static FILE mystdout = FDEV_SETUP_STREAM(udp_putchar, NULL, _FDEV_SETUP_WRITE); |
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| 661 | arune | 91 | */ |
| 205 | arune | 92 | |
| 1115 | arune | 93 | #if USE_STDCAN == 0 |
| 661 | arune | 94 | void Can_Process(Can_Message_t* msg) { |
| 95 | if (!(msg->ExtendedFlag)) return; // We don't care about standard CAN frames. |
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| 96 | |||
| 97 | if (!rxMsgFull) { |
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| 98 | memcpy((void*)&rxMsg, msg, sizeof(rxMsg)); |
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| 99 | rxMsgFull = 1; |
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| 100 | } |
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| 101 | } |
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| 1686 | runge | 102 | #endif |
| 661 | arune | 103 | |
| 205 | arune | 104 | /*----------------------------------------------------------------------------- |
| 105 | * Main Program |
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| 106 | *---------------------------------------------------------------------------*/ |
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| 107 | int main(void) { |
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| 1003 | linlun | 108 | |
| 932 | arune | 109 | #if MCP_CS_BIT != PB2 |
| 110 | /* If slave select is not set as output it might change SPI hw to slave |
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| 111 | * See ch 18.3.2 (18.3 SS Pin Functionality) in ATmega48/88/168-datasheet */ |
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| 112 | DDRB |= (1<<PB2); |
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| 113 | #endif |
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| 205 | arune | 114 | |
| 1003 | linlun | 115 | |
| 205 | arune | 116 | //ethernet vars |
| 117 | uint16_t plen = 0; |
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| 118 | uint8_t payloadlen=0; |
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| 212 | arune | 119 | buffpoint = 0; |
| 205 | arune | 120 | |
| 121 | //can vars |
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| 661 | arune | 122 | |
| 212 | arune | 123 | uint32_t timeStamp = 0; |
| 661 | arune | 124 | |
| 125 | //uint8_t sw=0; |
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| 126 | // LED |
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| 127 | /* enable PB1, LED as output */ |
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| 128 | //DDRB|= (1<<DDB0); |
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| 129 | |||
| 130 | /* set output to Vcc, LED off */ |
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| 131 | //PORTB|= (1<<PB0); |
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| 205 | arune | 132 | |
| 212 | arune | 133 | Mcu_Init(); |
| 205 | arune | 134 | Timebase_Init(); |
| 212 | arune | 135 | |
| 136 | //alla printf ska skriva till udp |
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| 661 | arune | 137 | //stdout = &mystdout; //set the output stream |
| 1686 | runge | 138 | |
| 1115 | arune | 139 | #if USE_STDCAN == 0 |
| 140 | Can_Init(); |
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| 141 | Can_Message_t txMsg; |
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| 142 | txMsg.RemoteFlag = 0; |
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| 143 | txMsg.ExtendedFlag = 1; |
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| 144 | rxMsgFull = 0; |
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| 145 | #else |
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| 146 | StdCan_Init(0); |
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| 1686 | runge | 147 | StdCan_Msg_t txMsg; |
| 1115 | arune | 148 | StdCan_Msg_t rxMsg; |
| 149 | #endif |
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| 205 | arune | 150 | |
| 661 | arune | 151 | sei(); |
| 541 | arune | 152 | |
| 1696 | arune | 153 | /* initialize enc28j60 */ |
| 669 | arune | 154 | if (enc28j60Init(mymac) != 1) { |
| 155 | /* Great place to set an IO for debug */ |
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| 156 | } |
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| 205 | arune | 157 | delay_ms(20); |
| 158 | |||
| 159 | /* Magjack leds configuration, see enc28j60 datasheet, page 11 */ |
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| 160 | // LEDB=yellow LEDA=green |
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| 161 | // |
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| 162 | // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit |
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| 163 | enc28j60PhyWrite(PHLCON,0x476); |
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| 164 | delay_ms(20); |
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| 165 | |||
| 166 | //init the ethernet/ip layer: |
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| 167 | init_ip_arp_udp_tcp(mymac,myip,80); |
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| 168 | |||
| 169 | /* main loop */ |
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| 170 | while (1) { |
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| 171 | /* service the CAN routines */ |
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| 172 | |||
| 541 | arune | 173 | #if SENDTIMESTAMP == 1 |
| 205 | arune | 174 | /* send CAN message and check for CAN errors once every second */ |
| 541 | arune | 175 | if (Timebase_PassedTimeMillis(timeStamp) >= 1000) { |
| 205 | arune | 176 | timeStamp = Timebase_CurrentTime(); |
| 1686 | runge | 177 | |
| 178 | /* send timestamp, to keep network alive */ |
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| 1115 | arune | 179 | txMsg.Id = (CAN_NMT << CAN_SHIFT_CLASS) | (CAN_NMT_TIME << CAN_SHIFT_NMT_TYPE); |
| 180 | #if USE_STDCAN == 0 |
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| 541 | arune | 181 | txMsg.DataLength = 0; |
| 182 | Can_Send(&txMsg); |
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| 1686 | runge | 183 | #else |
| 1115 | arune | 184 | txMsg.Length = 0; |
| 185 | StdCan_Put(&txMsg); |
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| 186 | #endif |
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| 205 | arune | 187 | } |
| 541 | arune | 188 | #endif |
| 205 | arune | 189 | |
| 190 | /* check if any messages have been received */ |
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| 1115 | arune | 191 | #if USE_STDCAN == 0 |
| 192 | if (rxMsgFull) { |
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| 193 | #else |
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| 194 | if (StdCan_Get(&rxMsg) == StdCan_Ret_OK) { |
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| 195 | #endif |
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| 281 | arune | 196 | uint8_t i; |
| 1696 | arune | 197 | /* Do we have any ip to send the can data to yet? */ |
| 379 | arune | 198 | if (gotcan2serserver != 0) { |
| 1696 | arune | 199 | /* Send can frame raw in an udp packet */ |
| 379 | arune | 200 | char sendbuf2[17]; |
| 201 | |||
| 202 | sendbuf2[0] = C2S_START_BYTE; |
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| 203 | sendbuf2[1] = (uint8_t)rxMsg.Id; |
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| 204 | sendbuf2[2] = (uint8_t)(rxMsg.Id>>8); |
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| 205 | sendbuf2[3] = (uint8_t)(rxMsg.Id>>16); |
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| 206 | sendbuf2[4] = (uint8_t)(rxMsg.Id>>24); |
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| 1115 | arune | 207 | #if USE_STDCAN == 0 |
| 379 | arune | 208 | sendbuf2[5] = rxMsg.ExtendedFlag; |
| 209 | sendbuf2[6] = rxMsg.RemoteFlag; |
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| 210 | sendbuf2[7] = rxMsg.DataLength; |
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| 211 | for (i=0; i<8; i++) { |
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| 212 | sendbuf2[8+i] = rxMsg.Data.bytes[i]; |
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| 213 | } |
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| 1115 | arune | 214 | #else |
| 215 | sendbuf2[5] = 1; |
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| 216 | sendbuf2[6] = 0; |
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| 217 | sendbuf2[7] = rxMsg.Length; |
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| 218 | for (i=0; i<8; i++) { |
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| 219 | sendbuf2[8+i] = rxMsg.Data[i]; |
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| 220 | } |
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| 1686 | runge | 221 | #endif |
| 379 | arune | 222 | sendbuf2[16] = C2S_END_BYTE; |
| 1686 | runge | 223 | |
| 1115 | arune | 224 | #ifndef ENC28J60_USART_SPI_MODE |
| 1686 | runge | 225 | //MCP_INT_DISABLE(); |
| 1115 | arune | 226 | cli(); |
| 227 | #endif |
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| 1686 | runge | 228 | send_udp(buf, sendbuf2, 18, rmCan2SerPrt, prgremotemac, prgremoteip); |
| 1115 | arune | 229 | #ifndef ENC28J60_USART_SPI_MODE |
| 230 | sei(); |
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| 1686 | runge | 231 | //MCP_INT_ENABLE(); |
| 1115 | arune | 232 | #endif |
| 379 | arune | 233 | } |
| 661 | arune | 234 | |
| 1115 | arune | 235 | #if USE_STDCAN == 0 |
| 236 | rxMsgFull = 0; |
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| 237 | #endif |
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| 205 | arune | 238 | } |
| 239 | |||
| 212 | arune | 240 | //test-debug-kod |
| 241 | if ((enc28j60Read(EIR) & EIR_TXERIF)) { |
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| 242 | //printf("EIR_TXERIF set!\n"); |
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| 243 | if ((enc28j60Read(ECON1) & ECON1_TXRTS)) { |
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| 244 | //printf("ECON1_TXRTS set!\n"); |
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| 245 | } |
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| 246 | } |
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| 247 | if ((enc28j60Read(EIR) & EIR_TXIF)) { |
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| 248 | //printf("EIR_TXIF set! "); |
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| 249 | } |
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| 250 | if ((enc28j60Read(ESTAT) & ESTAT_TXABRT)) { |
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| 251 | //printf("ESTAT_TXABRT set!\n"); |
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| 252 | //printf("MACLCON1: %i\n", enc28j60Read(MACLCON1)); |
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| 253 | enc28j60WriteOp(ENC28J60_BIT_FIELD_CLR, ESTAT, ESTAT_TXABRT); |
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| 254 | } |
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| 255 | |||
| 205 | arune | 256 | // get the next new packet: |
| 257 | plen = enc28j60PacketReceive(BUFFER_SIZE, buf); |
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| 258 | |||
| 259 | /*plen will ne unequal to zero if there is a valid |
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| 260 | * packet (without crc error) */ |
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| 1696 | arune | 261 | if (plen!=0){ |
| 205 | arune | 262 | // arp is broadcast if unknown but a host may also |
| 263 | // verify the mac address by sending it to |
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| 264 | // a unicast address. |
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| 1696 | arune | 265 | if (eth_type_is_arp_and_my_ip(buf,plen)) { |
| 205 | arune | 266 | make_arp_answer_from_request(buf); |
| 267 | } else { |
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| 1696 | arune | 268 | /* check if ip packets (icmp or udp) are for us by checking eth type and receiver ip adress: */ |
| 269 | if (eth_type_is_ip_and_my_ip(buf,plen)!=0) { |
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| 205 | arune | 270 | |
| 1696 | arune | 271 | /* a ping packet, let's send pong */ |
| 272 | if (buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V) { |
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| 205 | arune | 273 | make_echo_reply_from_request(buf,plen); |
| 274 | } |
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| 1696 | arune | 275 | |
| 276 | /* If packet is an udp packet */ |
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| 277 | if (buf[IP_PROTO_P]==IP_PROTO_UDP_V) { |
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| 205 | arune | 278 | payloadlen=buf[UDP_LEN_L_P]-UDP_HEADER_LEN; |
| 379 | arune | 279 | uint8_t i = 0; |
| 280 | |||
| 1696 | arune | 281 | /* if port is can2serial-port (default 1100) */ |
| 280 | arune | 282 | if ((buf[UDP_DST_PORT_H_P]==((locCan2SerPrt>>8) & 0xff)) && (buf[UDP_DST_PORT_L_P] == (locCan2SerPrt & 0xff))) { |
| 1696 | arune | 283 | while(i<6) { |
| 379 | arune | 284 | prgremotemac[i]=buf[ETH_SRC_MAC +i]; |
| 285 | i++; |
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| 286 | } |
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| 287 | i=0; |
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| 1696 | arune | 288 | while(i<4) { |
| 379 | arune | 289 | prgremoteip[i]=buf[IP_SRC_P +i]; |
| 290 | i++; |
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| 291 | } |
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| 292 | gotcan2serserver = 1; |
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| 1696 | arune | 293 | |
| 294 | /* If data is a raw can packet */ |
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| 1686 | runge | 295 | if ((buf[UDP_DATA_P]==C2S_START_BYTE) && (buf[UDP_DATA_P+16]==C2S_END_BYTE) && (payloadlen==17)) |
| 296 | { |
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| 1115 | arune | 297 | #if USE_STDCAN == 0 |
| 379 | arune | 298 | Can_Message_t cm; |
| 299 | cm.DataLength = buf[UDP_DATA_P+7]; |
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| 1686 | runge | 300 | |
| 301 | if (cm.DataLength > 8) |
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| 302 | { |
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| 303 | cm.DataLength = 8; |
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| 304 | } |
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| 305 | |||
| 379 | arune | 306 | cm.RemoteFlag = buf[UDP_DATA_P+6]; |
| 307 | cm.ExtendedFlag = buf[UDP_DATA_P+5]; |
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| 1686 | runge | 308 | cm.Id = (uint32_t)buf[UDP_DATA_P+1] + ((uint32_t)buf[UDP_DATA_P+2] << 8) + |
| 1304 | arune | 309 | ((uint32_t)buf[UDP_DATA_P+3] << 16) + ((uint32_t)buf[UDP_DATA_P+4] << 24); |
| 379 | arune | 310 | uint8_t i; |
| 311 | for (i = 0; i < cm.DataLength; i++) { |
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| 312 | cm.Data.bytes[i] = buf[UDP_DATA_P+8+i]; |
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| 313 | } |
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| 314 | Can_Send(&cm); |
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| 1686 | runge | 315 | #else |
| 316 | static StdCan_Msg_t cm; |
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| 1115 | arune | 317 | cm.Length = buf[UDP_DATA_P+7]; |
| 1686 | runge | 318 | |
| 319 | if (cm.Length > 8) |
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| 320 | { |
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| 321 | cm.Length = 8; |
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| 322 | } |
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| 323 | |||
| 324 | cm.Id = (uint32_t)buf[UDP_DATA_P+1] + ((uint32_t)buf[UDP_DATA_P+2] << 8) + |
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| 1304 | arune | 325 | ((uint32_t)buf[UDP_DATA_P+3] << 16) + ((uint32_t)buf[UDP_DATA_P+4] << 24); |
| 1115 | arune | 326 | uint8_t i; |
| 327 | for (i = 0; i < cm.Length; i++) { |
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| 328 | cm.Data[i] = buf[UDP_DATA_P+8+i]; |
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| 329 | } |
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| 330 | StdCan_Put(&cm); |
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| 331 | #endif |
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| 1686 | runge | 332 | } |
| 1696 | arune | 333 | /* of ir data is an udp ping */ |
| 334 | else if ((buf[UDP_DATA_P]==C2S_PING_BYTE) && (payloadlen<=2) && (payloadlen>0)) |
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| 1686 | runge | 335 | { |
| 1304 | arune | 336 | char sendbuf3[1]; |
| 337 | sendbuf3[0] = C2S_PING_BYTE; |
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| 1686 | runge | 338 | |
| 1304 | arune | 339 | #ifndef ENC28J60_USART_SPI_MODE |
| 340 | cli(); |
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| 341 | #endif |
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| 1686 | runge | 342 | send_udp(buf, sendbuf3, 1, rmCan2SerPrt, prgremotemac, prgremoteip); |
| 1304 | arune | 343 | #ifndef ENC28J60_USART_SPI_MODE |
| 344 | sei(); |
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| 345 | #endif |
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| 281 | arune | 346 | } |
| 1696 | arune | 347 | } |
| 205 | arune | 348 | } |
| 349 | } |
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| 350 | } |
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| 351 | } |
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| 352 | } |
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| 353 | return 0; |
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| 354 | } |
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| 1696 | arune | 355 |