mbed OS5
Fork of UIPEthernet by
utility/Enc28J60Network.cpp@9:e55652bed36c, 2017-08-06 (annotated)
- Committer:
- pilotak
- Date:
- Sun Aug 06 16:01:26 2017 +0000
- Revision:
- 9:e55652bed36c
- Parent:
- 8:4acb22344932
mBed OS5
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
hudakz | 4:d774541a34da | 1 | /* |
hudakz | 4:d774541a34da | 2 | Enc28J60Network.cpp |
hudakz | 4:d774541a34da | 3 | UIPEthernet network driver for Microchip ENC28J60 Ethernet Interface. |
hudakz | 4:d774541a34da | 4 | |
hudakz | 4:d774541a34da | 5 | Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de> |
hudakz | 4:d774541a34da | 6 | All rights reserved. |
hudakz | 4:d774541a34da | 7 | |
hudakz | 4:d774541a34da | 8 | based on enc28j60.c file from the AVRlib library by Pascal Stang. |
hudakz | 4:d774541a34da | 9 | For AVRlib See http://www.procyonengineering.com/ |
hudakz | 4:d774541a34da | 10 | |
hudakz | 4:d774541a34da | 11 | Modified (ported to mbed) by Zoltan Hudak <hudakz@inbox.com> |
hudakz | 4:d774541a34da | 12 | |
hudakz | 4:d774541a34da | 13 | This program is free software: you can redistribute it and/or modify |
hudakz | 4:d774541a34da | 14 | it under the terms of the GNU General Public License as published by |
hudakz | 4:d774541a34da | 15 | the Free Software Foundation, either version 3 of the License, or |
hudakz | 4:d774541a34da | 16 | (at your option) any later version. |
hudakz | 4:d774541a34da | 17 | |
hudakz | 4:d774541a34da | 18 | This program is distributed in the hope that it will be useful, |
hudakz | 4:d774541a34da | 19 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
hudakz | 4:d774541a34da | 20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
hudakz | 4:d774541a34da | 21 | GNU General Public License for more details. |
hudakz | 4:d774541a34da | 22 | |
hudakz | 4:d774541a34da | 23 | You should have received a copy of the GNU General Public License |
hudakz | 4:d774541a34da | 24 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
hudakz | 4:d774541a34da | 25 | */ |
hudakz | 4:d774541a34da | 26 | #include "Enc28J60Network.h" |
hudakz | 8:4acb22344932 | 27 | #include "mbed.h" |
hudakz | 4:d774541a34da | 28 | |
hudakz | 4:d774541a34da | 29 | extern "C" |
hudakz | 4:d774541a34da | 30 | { |
hudakz | 4:d774541a34da | 31 | #include "enc28j60.h" |
hudakz | 4:d774541a34da | 32 | #include "uip.h" |
hudakz | 8:4acb22344932 | 33 | } |
hudakz | 4:d774541a34da | 34 | |
hudakz | 8:4acb22344932 | 35 | uint16_t Enc28J60Network::nextPacketPtr; |
hudakz | 8:4acb22344932 | 36 | uint8_t Enc28J60Network::bank = 0xff; |
hudakz | 8:4acb22344932 | 37 | struct memblock Enc28J60Network::receivePkt; |
hudakz | 4:d774541a34da | 38 | |
hudakz | 4:d774541a34da | 39 | /** |
hudakz | 4:d774541a34da | 40 | * @brief |
hudakz | 4:d774541a34da | 41 | * @note |
hudakz | 4:d774541a34da | 42 | * @param |
hudakz | 4:d774541a34da | 43 | * @retval |
hudakz | 4:d774541a34da | 44 | */ |
hudakz | 4:d774541a34da | 45 | Enc28J60Network::Enc28J60Network(PinName mosi, PinName miso, PinName sclk, PinName cs) : |
pilotak | 9:e55652bed36c | 46 | myMemoryPool(), |
hudakz | 4:d774541a34da | 47 | _spi(mosi, miso, sclk), |
hudakz | 4:d774541a34da | 48 | _cs(cs) |
hudakz | 4:d774541a34da | 49 | { } |
hudakz | 4:d774541a34da | 50 | |
hudakz | 4:d774541a34da | 51 | /** |
hudakz | 4:d774541a34da | 52 | * @brief |
hudakz | 4:d774541a34da | 53 | * @note |
hudakz | 4:d774541a34da | 54 | * @param |
hudakz | 4:d774541a34da | 55 | * @retval |
hudakz | 4:d774541a34da | 56 | */ |
hudakz | 4:d774541a34da | 57 | void Enc28J60Network::init(uint8_t* macaddr) { |
pilotak | 9:e55652bed36c | 58 | myMemoryPool::init(); // 1 byte in between RX_STOP_INIT and pool to allow prepending of controlbyte |
hudakz | 4:d774541a34da | 59 | |
hudakz | 4:d774541a34da | 60 | // initialize SPI interface |
hudakz | 4:d774541a34da | 61 | _spi.format(8, 0); // 8bit, mode 0 |
hudakz | 4:d774541a34da | 62 | _spi.frequency(7000000); // 7MHz |
hudakz | 8:4acb22344932 | 63 | wait_ms(1000); // 1 second for stable state |
hudakz | 4:d774541a34da | 64 | |
hudakz | 4:d774541a34da | 65 | // initialize I/O |
hudakz | 4:d774541a34da | 66 | _cs = 1; // ss=0 |
hudakz | 4:d774541a34da | 67 | |
hudakz | 4:d774541a34da | 68 | // perform system reset |
hudakz | 4:d774541a34da | 69 | writeOp(ENC28J60_SOFT_RESET, 0, ENC28J60_SOFT_RESET); |
hudakz | 4:d774541a34da | 70 | wait_ms(50); |
hudakz | 4:d774541a34da | 71 | |
hudakz | 4:d774541a34da | 72 | // check CLKRDY bit to see if reset is complete |
hudakz | 4:d774541a34da | 73 | // The CLKRDY does not work. See Rev. B4 Silicon Errata point. Just wait. |
hudakz | 4:d774541a34da | 74 | //while(!(readReg(ESTAT) & ESTAT_CLKRDY)); |
hudakz | 4:d774541a34da | 75 | // do bank 0 stuff |
hudakz | 4:d774541a34da | 76 | // initialize receive buffer |
hudakz | 4:d774541a34da | 77 | // 16-bit transfers, must write low byte first |
hudakz | 4:d774541a34da | 78 | // set receive buffer start address |
hudakz | 4:d774541a34da | 79 | nextPacketPtr = RXSTART_INIT; |
hudakz | 4:d774541a34da | 80 | |
hudakz | 4:d774541a34da | 81 | // Rx start |
hudakz | 4:d774541a34da | 82 | writeRegPair(ERXSTL, RXSTART_INIT); |
hudakz | 4:d774541a34da | 83 | |
hudakz | 4:d774541a34da | 84 | // set receive pointer address |
hudakz | 4:d774541a34da | 85 | writeRegPair(ERXRDPTL, RXSTART_INIT); |
hudakz | 4:d774541a34da | 86 | |
hudakz | 4:d774541a34da | 87 | // RX end |
hudakz | 4:d774541a34da | 88 | writeRegPair(ERXNDL, RXSTOP_INIT); |
hudakz | 4:d774541a34da | 89 | |
hudakz | 4:d774541a34da | 90 | // TX start |
hudakz | 4:d774541a34da | 91 | //writeRegPair(ETXSTL, TXSTART_INIT); |
hudakz | 4:d774541a34da | 92 | // TX end |
hudakz | 4:d774541a34da | 93 | //writeRegPair(ETXNDL, TXSTOP_INIT); |
hudakz | 4:d774541a34da | 94 | // do bank 1 stuff, packet filter: |
hudakz | 4:d774541a34da | 95 | // For broadcast packets we allow only ARP packtets |
hudakz | 4:d774541a34da | 96 | // All other packets should be unicast only for our mac (MAADR) |
hudakz | 4:d774541a34da | 97 | // |
hudakz | 4:d774541a34da | 98 | // The pattern to match on is therefore |
hudakz | 4:d774541a34da | 99 | // Type ETH.DST |
hudakz | 4:d774541a34da | 100 | // ARP BROADCAST |
hudakz | 4:d774541a34da | 101 | // 06 08 -- ff ff ff ff ff ff -> ip checksum for theses bytes=f7f9 |
hudakz | 4:d774541a34da | 102 | // in binary these poitions are:11 0000 0011 1111 |
hudakz | 4:d774541a34da | 103 | // This is hex 303F->EPMM0=0x3f,EPMM1=0x30 |
hudakz | 4:d774541a34da | 104 | //TODO define specific pattern to receive dhcp-broadcast packages instead of setting ERFCON_BCEN! |
hudakz | 4:d774541a34da | 105 | writeReg(ERXFCON, ERXFCON_UCEN | ERXFCON_CRCEN | ERXFCON_PMEN | ERXFCON_BCEN); |
hudakz | 4:d774541a34da | 106 | writeRegPair(EPMM0, 0x303f); |
hudakz | 4:d774541a34da | 107 | writeRegPair(EPMCSL, 0xf7f9); |
hudakz | 4:d774541a34da | 108 | |
hudakz | 4:d774541a34da | 109 | // |
hudakz | 4:d774541a34da | 110 | // |
hudakz | 4:d774541a34da | 111 | // do bank 2 stuff |
hudakz | 4:d774541a34da | 112 | // enable MAC receive |
hudakz | 4:d774541a34da | 113 | // and bring MAC out of reset (writes 0x00 to MACON2) |
hudakz | 4:d774541a34da | 114 | writeRegPair(MACON1, MACON1_MARXEN | MACON1_TXPAUS | MACON1_RXPAUS); |
hudakz | 4:d774541a34da | 115 | |
hudakz | 4:d774541a34da | 116 | // enable automatic padding to 60bytes and CRC operations |
hudakz | 4:d774541a34da | 117 | writeOp(ENC28J60_BIT_FIELD_SET, MACON3, MACON3_PADCFG0 | MACON3_TXCRCEN | MACON3_FRMLNEN); |
hudakz | 4:d774541a34da | 118 | |
hudakz | 4:d774541a34da | 119 | // set inter-frame gap (non-back-to-back) |
hudakz | 4:d774541a34da | 120 | writeRegPair(MAIPGL, 0x0C12); |
hudakz | 4:d774541a34da | 121 | |
hudakz | 4:d774541a34da | 122 | // set inter-frame gap (back-to-back) |
hudakz | 4:d774541a34da | 123 | writeReg(MABBIPG, 0x12); |
hudakz | 4:d774541a34da | 124 | |
hudakz | 4:d774541a34da | 125 | // Set the maximum packet size which the controller will accept |
hudakz | 4:d774541a34da | 126 | // Do not send packets longer than MAX_FRAMELEN: |
hudakz | 4:d774541a34da | 127 | writeRegPair(MAMXFLL, MAX_FRAMELEN); |
hudakz | 4:d774541a34da | 128 | |
hudakz | 4:d774541a34da | 129 | // do bank 3 stuff |
hudakz | 4:d774541a34da | 130 | // write MAC address |
hudakz | 4:d774541a34da | 131 | // NOTE: MAC address in ENC28J60 is byte-backward |
hudakz | 4:d774541a34da | 132 | writeReg(MAADR5, macaddr[0]); |
hudakz | 4:d774541a34da | 133 | writeReg(MAADR4, macaddr[1]); |
hudakz | 4:d774541a34da | 134 | writeReg(MAADR3, macaddr[2]); |
hudakz | 4:d774541a34da | 135 | writeReg(MAADR2, macaddr[3]); |
hudakz | 4:d774541a34da | 136 | writeReg(MAADR1, macaddr[4]); |
hudakz | 4:d774541a34da | 137 | writeReg(MAADR0, macaddr[5]); |
hudakz | 4:d774541a34da | 138 | |
hudakz | 4:d774541a34da | 139 | // no loopback of transmitted frames |
hudakz | 4:d774541a34da | 140 | phyWrite(PHCON2, PHCON2_HDLDIS); |
hudakz | 4:d774541a34da | 141 | |
hudakz | 4:d774541a34da | 142 | // switch to bank 0 |
hudakz | 4:d774541a34da | 143 | setBank(ECON1); |
hudakz | 4:d774541a34da | 144 | |
hudakz | 4:d774541a34da | 145 | // enable interrutps |
hudakz | 4:d774541a34da | 146 | writeOp(ENC28J60_BIT_FIELD_SET, EIE, EIE_INTIE | EIE_PKTIE); |
hudakz | 4:d774541a34da | 147 | |
hudakz | 4:d774541a34da | 148 | // enable packet reception |
hudakz | 4:d774541a34da | 149 | writeOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_RXEN); |
hudakz | 4:d774541a34da | 150 | |
hudakz | 4:d774541a34da | 151 | clkout(2); // change clkout from 6.25MHz to 12.5MHz |
hudakz | 4:d774541a34da | 152 | wait_us(60); // 60us |
hudakz | 4:d774541a34da | 153 | |
hudakz | 4:d774541a34da | 154 | //Configure leds |
hudakz | 4:d774541a34da | 155 | phyWrite(PHLCON, 0x476); |
hudakz | 4:d774541a34da | 156 | } |
hudakz | 4:d774541a34da | 157 | |
hudakz | 4:d774541a34da | 158 | /** |
hudakz | 4:d774541a34da | 159 | * @brief |
hudakz | 4:d774541a34da | 160 | * @note |
hudakz | 4:d774541a34da | 161 | * @param |
hudakz | 4:d774541a34da | 162 | * @retval |
hudakz | 4:d774541a34da | 163 | */ |
hudakz | 4:d774541a34da | 164 | memhandle Enc28J60Network::receivePacket(void) { |
hudakz | 4:d774541a34da | 165 | uint8_t rxstat; |
hudakz | 4:d774541a34da | 166 | uint16_t len; |
hudakz | 4:d774541a34da | 167 | // check if a packet has been received and buffered |
hudakz | 4:d774541a34da | 168 | |
hudakz | 4:d774541a34da | 169 | //if( !(readReg(EIR) & EIR_PKTIF) ){ |
hudakz | 4:d774541a34da | 170 | // The above does not work. See Rev. B4 Silicon Errata point 6. |
hudakz | 8:4acb22344932 | 171 | if (readReg(EPKTCNT) != 0) { |
hudakz | 4:d774541a34da | 172 | uint16_t readPtr = nextPacketPtr + |
hudakz | 4:d774541a34da | 173 | 6 > RXSTOP_INIT ? nextPacketPtr + |
hudakz | 4:d774541a34da | 174 | 6 - |
hudakz | 4:d774541a34da | 175 | RXSTOP_INIT + |
hudakz | 4:d774541a34da | 176 | RXSTART_INIT : nextPacketPtr + |
hudakz | 4:d774541a34da | 177 | 6; |
hudakz | 4:d774541a34da | 178 | // Set the read pointer to the start of the received packet |
hudakz | 4:d774541a34da | 179 | |
hudakz | 4:d774541a34da | 180 | writeRegPair(ERDPTL, nextPacketPtr); |
hudakz | 4:d774541a34da | 181 | |
hudakz | 4:d774541a34da | 182 | // read the next packet pointer |
hudakz | 4:d774541a34da | 183 | nextPacketPtr = readOp(ENC28J60_READ_BUF_MEM, 0); |
hudakz | 4:d774541a34da | 184 | nextPacketPtr |= readOp(ENC28J60_READ_BUF_MEM, 0) << 8; |
hudakz | 4:d774541a34da | 185 | |
hudakz | 4:d774541a34da | 186 | // read the packet length (see datasheet page 43) |
hudakz | 4:d774541a34da | 187 | len = readOp(ENC28J60_READ_BUF_MEM, 0); |
hudakz | 4:d774541a34da | 188 | len |= readOp(ENC28J60_READ_BUF_MEM, 0) << 8; |
hudakz | 4:d774541a34da | 189 | len -= 4; //remove the CRC count |
hudakz | 4:d774541a34da | 190 | |
hudakz | 4:d774541a34da | 191 | // read the receive status (see datasheet page 43) |
hudakz | 4:d774541a34da | 192 | rxstat = readOp(ENC28J60_READ_BUF_MEM, 0); |
hudakz | 4:d774541a34da | 193 | |
hudakz | 4:d774541a34da | 194 | //rxstat |= readOp(ENC28J60_READ_BUF_MEM, 0) << 8; |
hudakz | 4:d774541a34da | 195 | #ifdef ENC28J60DEBUG |
hudakz | 8:4acb22344932 | 196 | printf |
hudakz | 8:4acb22344932 | 197 | ( |
hudakz | 8:4acb22344932 | 198 | "receivePacket [%d-%d], next: %d, stat: %d, count: %d -> ", |
hudakz | 8:4acb22344932 | 199 | readPtr, |
hudakz | 8:4acb22344932 | 200 | (readPtr + len) % (RXSTOP_INIT + 1), |
hudakz | 8:4acb22344932 | 201 | nextPacketPtr, |
hudakz | 8:4acb22344932 | 202 | rxstat, |
hudakz | 8:4acb22344932 | 203 | readReg(EPKTCNT) |
hudakz | 8:4acb22344932 | 204 | ); |
hudakz | 8:4acb22344932 | 205 | (rxstat & 0x80) != 0 ? printf("OK") : printf("failed"); |
hudakz | 8:4acb22344932 | 206 | printf("\r\n"); |
hudakz | 4:d774541a34da | 207 | #endif |
hudakz | 4:d774541a34da | 208 | // decrement the packet counter indicate we are done with this packet |
hudakz | 4:d774541a34da | 209 | |
hudakz | 4:d774541a34da | 210 | writeOp(ENC28J60_BIT_FIELD_SET, ECON2, ECON2_PKTDEC); |
hudakz | 4:d774541a34da | 211 | |
hudakz | 4:d774541a34da | 212 | // check CRC and symbol errors (see datasheet page 44, table 7-3): |
hudakz | 4:d774541a34da | 213 | // The ERXFCON.CRCEN is set by default. Normally we should not |
hudakz | 4:d774541a34da | 214 | // need to check this. |
hudakz | 8:4acb22344932 | 215 | if ((rxstat & 0x80) != 0) { |
hudakz | 4:d774541a34da | 216 | receivePkt.begin = readPtr; |
hudakz | 4:d774541a34da | 217 | receivePkt.size = len; |
hudakz | 4:d774541a34da | 218 | return UIP_RECEIVEBUFFERHANDLE; |
hudakz | 4:d774541a34da | 219 | } |
hudakz | 4:d774541a34da | 220 | |
hudakz | 4:d774541a34da | 221 | // Move the RX read pointer to the start of the next received packet |
hudakz | 4:d774541a34da | 222 | // This frees the memory we just read out |
hudakz | 4:d774541a34da | 223 | setERXRDPT(); |
hudakz | 4:d774541a34da | 224 | } |
hudakz | 4:d774541a34da | 225 | |
hudakz | 4:d774541a34da | 226 | return(NOBLOCK); |
hudakz | 4:d774541a34da | 227 | } |
hudakz | 4:d774541a34da | 228 | |
hudakz | 4:d774541a34da | 229 | /** |
hudakz | 4:d774541a34da | 230 | * @brief |
hudakz | 4:d774541a34da | 231 | * @note |
hudakz | 4:d774541a34da | 232 | * @param |
hudakz | 4:d774541a34da | 233 | * @retval |
hudakz | 4:d774541a34da | 234 | */ |
hudakz | 4:d774541a34da | 235 | void Enc28J60Network::setERXRDPT(void) { |
hudakz | 4:d774541a34da | 236 | writeRegPair(ERXRDPTL, nextPacketPtr == RXSTART_INIT ? RXSTOP_INIT : nextPacketPtr - 1); |
hudakz | 4:d774541a34da | 237 | } |
hudakz | 4:d774541a34da | 238 | |
hudakz | 4:d774541a34da | 239 | /** |
hudakz | 4:d774541a34da | 240 | * @brief |
hudakz | 4:d774541a34da | 241 | * @note |
hudakz | 4:d774541a34da | 242 | * @param |
hudakz | 4:d774541a34da | 243 | * @retval |
hudakz | 4:d774541a34da | 244 | */ |
hudakz | 4:d774541a34da | 245 | memaddress Enc28J60Network::blockSize(memhandle handle) { |
hudakz | 4:d774541a34da | 246 | return handle == NOBLOCK ? 0 : handle == UIP_RECEIVEBUFFERHANDLE ? receivePkt.size : blocks[handle].size; |
hudakz | 4:d774541a34da | 247 | } |
hudakz | 4:d774541a34da | 248 | |
hudakz | 4:d774541a34da | 249 | /** |
hudakz | 4:d774541a34da | 250 | * @brief |
hudakz | 4:d774541a34da | 251 | * @note |
hudakz | 4:d774541a34da | 252 | * @param |
hudakz | 4:d774541a34da | 253 | * @retval |
hudakz | 4:d774541a34da | 254 | */ |
hudakz | 4:d774541a34da | 255 | void Enc28J60Network::sendPacket(memhandle handle) { |
hudakz | 4:d774541a34da | 256 | memblock* packet = &blocks[handle]; |
hudakz | 4:d774541a34da | 257 | uint16_t start = packet->begin - 1; |
hudakz | 4:d774541a34da | 258 | uint16_t end = start + packet->size; |
hudakz | 4:d774541a34da | 259 | |
hudakz | 4:d774541a34da | 260 | // backup data at control-byte position |
hudakz | 4:d774541a34da | 261 | uint8_t data = readByte(start); |
hudakz | 4:d774541a34da | 262 | // write control-byte (if not 0 anyway) |
hudakz | 4:d774541a34da | 263 | |
hudakz | 8:4acb22344932 | 264 | if (data) |
hudakz | 4:d774541a34da | 265 | writeByte(start, 0); |
hudakz | 4:d774541a34da | 266 | |
hudakz | 4:d774541a34da | 267 | #ifdef ENC28J60DEBUG |
hudakz | 8:4acb22344932 | 268 | printf("sendPacket(%d) [%d-%d]: ", handle, start, end); |
hudakz | 8:4acb22344932 | 269 | for (uint16_t i = start; i <= end; i++) { |
hudakz | 8:4acb22344932 | 270 | printf("%d ", readByte(i)); |
hudakz | 4:d774541a34da | 271 | } |
hudakz | 4:d774541a34da | 272 | |
hudakz | 8:4acb22344932 | 273 | printf("\r\n"); |
hudakz | 4:d774541a34da | 274 | #endif |
hudakz | 4:d774541a34da | 275 | // TX start |
hudakz | 4:d774541a34da | 276 | |
hudakz | 4:d774541a34da | 277 | writeRegPair(ETXSTL, start); |
hudakz | 4:d774541a34da | 278 | |
hudakz | 4:d774541a34da | 279 | // Set the TXND pointer to correspond to the packet size given |
hudakz | 4:d774541a34da | 280 | writeRegPair(ETXNDL, end); |
hudakz | 4:d774541a34da | 281 | |
hudakz | 4:d774541a34da | 282 | // send the contents of the transmit buffer onto the network |
hudakz | 4:d774541a34da | 283 | writeOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_TXRTS); |
hudakz | 4:d774541a34da | 284 | |
hudakz | 4:d774541a34da | 285 | // Reset the transmit logic problem. See Rev. B4 Silicon Errata point 12. |
hudakz | 8:4acb22344932 | 286 | if ((readReg(EIR) & EIR_TXERIF)) { |
hudakz | 4:d774541a34da | 287 | writeOp(ENC28J60_BIT_FIELD_CLR, ECON1, ECON1_TXRTS); |
hudakz | 4:d774541a34da | 288 | } |
hudakz | 4:d774541a34da | 289 | |
hudakz | 4:d774541a34da | 290 | //restore data on control-byte position |
hudakz | 8:4acb22344932 | 291 | if (data) |
hudakz | 4:d774541a34da | 292 | writeByte(start, data); |
hudakz | 4:d774541a34da | 293 | } |
hudakz | 4:d774541a34da | 294 | |
hudakz | 4:d774541a34da | 295 | /** |
hudakz | 4:d774541a34da | 296 | * @brief |
hudakz | 4:d774541a34da | 297 | * @note |
hudakz | 4:d774541a34da | 298 | * @param |
hudakz | 4:d774541a34da | 299 | * @retval |
hudakz | 4:d774541a34da | 300 | */ |
hudakz | 4:d774541a34da | 301 | uint16_t Enc28J60Network::setReadPtr(memhandle handle, memaddress position, uint16_t len) { |
hudakz | 4:d774541a34da | 302 | memblock* packet = handle == UIP_RECEIVEBUFFERHANDLE ? &receivePkt : &blocks[handle]; |
hudakz | 4:d774541a34da | 303 | memaddress start = handle == UIP_RECEIVEBUFFERHANDLE |
hudakz | 4:d774541a34da | 304 | && packet->begin + |
hudakz | 4:d774541a34da | 305 | position > RXSTOP_INIT ? packet->begin + |
hudakz | 4:d774541a34da | 306 | position - |
hudakz | 4:d774541a34da | 307 | RXSTOP_INIT + |
hudakz | 4:d774541a34da | 308 | RXSTART_INIT : packet->begin + |
hudakz | 4:d774541a34da | 309 | position; |
hudakz | 4:d774541a34da | 310 | |
hudakz | 4:d774541a34da | 311 | writeRegPair(ERDPTL, start); |
hudakz | 4:d774541a34da | 312 | |
hudakz | 8:4acb22344932 | 313 | if (len > packet->size - position) |
hudakz | 4:d774541a34da | 314 | len = packet->size - position; |
hudakz | 4:d774541a34da | 315 | return len; |
hudakz | 4:d774541a34da | 316 | } |
hudakz | 4:d774541a34da | 317 | |
hudakz | 4:d774541a34da | 318 | /** |
hudakz | 4:d774541a34da | 319 | * @brief |
hudakz | 4:d774541a34da | 320 | * @note |
hudakz | 4:d774541a34da | 321 | * @param |
hudakz | 4:d774541a34da | 322 | * @retval |
hudakz | 4:d774541a34da | 323 | */ |
hudakz | 4:d774541a34da | 324 | uint16_t Enc28J60Network::readPacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len) { |
hudakz | 4:d774541a34da | 325 | len = setReadPtr(handle, position, len); |
hudakz | 4:d774541a34da | 326 | readBuffer(len, buffer); |
hudakz | 4:d774541a34da | 327 | return len; |
hudakz | 4:d774541a34da | 328 | } |
hudakz | 4:d774541a34da | 329 | |
hudakz | 4:d774541a34da | 330 | /** |
hudakz | 4:d774541a34da | 331 | * @brief |
hudakz | 4:d774541a34da | 332 | * @note |
hudakz | 4:d774541a34da | 333 | * @param |
hudakz | 4:d774541a34da | 334 | * @retval |
hudakz | 4:d774541a34da | 335 | */ |
hudakz | 4:d774541a34da | 336 | uint16_t Enc28J60Network::writePacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len) { |
hudakz | 4:d774541a34da | 337 | memblock* packet = &blocks[handle]; |
hudakz | 4:d774541a34da | 338 | uint16_t start = packet->begin + position; |
hudakz | 4:d774541a34da | 339 | |
hudakz | 4:d774541a34da | 340 | writeRegPair(EWRPTL, start); |
hudakz | 4:d774541a34da | 341 | |
hudakz | 8:4acb22344932 | 342 | if (len > packet->size - position) |
hudakz | 4:d774541a34da | 343 | len = packet->size - position; |
hudakz | 4:d774541a34da | 344 | writeBuffer(len, buffer); |
hudakz | 4:d774541a34da | 345 | return len; |
hudakz | 4:d774541a34da | 346 | } |
hudakz | 4:d774541a34da | 347 | |
hudakz | 4:d774541a34da | 348 | /** |
hudakz | 4:d774541a34da | 349 | * @brief |
hudakz | 4:d774541a34da | 350 | * @note |
hudakz | 4:d774541a34da | 351 | * @param |
hudakz | 4:d774541a34da | 352 | * @retval |
hudakz | 4:d774541a34da | 353 | */ |
hudakz | 4:d774541a34da | 354 | uint8_t Enc28J60Network::readByte(uint16_t addr) { |
hudakz | 4:d774541a34da | 355 | uint8_t result; |
hudakz | 4:d774541a34da | 356 | |
hudakz | 4:d774541a34da | 357 | writeRegPair(ERDPTL, addr); |
hudakz | 4:d774541a34da | 358 | |
hudakz | 4:d774541a34da | 359 | _cs = 0; |
hudakz | 4:d774541a34da | 360 | |
hudakz | 4:d774541a34da | 361 | // issue read command |
hudakz | 4:d774541a34da | 362 | _spi.write(ENC28J60_READ_BUF_MEM); |
hudakz | 4:d774541a34da | 363 | |
hudakz | 4:d774541a34da | 364 | // read data |
hudakz | 4:d774541a34da | 365 | result = _spi.write(0x00); |
hudakz | 4:d774541a34da | 366 | _cs = 1; |
hudakz | 4:d774541a34da | 367 | return(result); |
hudakz | 4:d774541a34da | 368 | } |
hudakz | 4:d774541a34da | 369 | |
hudakz | 4:d774541a34da | 370 | /** |
hudakz | 4:d774541a34da | 371 | * @brief |
hudakz | 4:d774541a34da | 372 | * @note |
hudakz | 4:d774541a34da | 373 | * @param |
hudakz | 4:d774541a34da | 374 | * @retval |
hudakz | 4:d774541a34da | 375 | */ |
hudakz | 4:d774541a34da | 376 | void Enc28J60Network::writeByte(uint16_t addr, uint8_t data) { |
hudakz | 4:d774541a34da | 377 | writeRegPair(EWRPTL, addr); |
hudakz | 4:d774541a34da | 378 | |
hudakz | 4:d774541a34da | 379 | _cs = 0; |
hudakz | 4:d774541a34da | 380 | |
hudakz | 4:d774541a34da | 381 | // issue write command |
hudakz | 4:d774541a34da | 382 | _spi.write(ENC28J60_WRITE_BUF_MEM); |
hudakz | 4:d774541a34da | 383 | |
hudakz | 4:d774541a34da | 384 | // write data |
hudakz | 4:d774541a34da | 385 | _spi.write(data); |
hudakz | 4:d774541a34da | 386 | _cs = 1; |
hudakz | 4:d774541a34da | 387 | } |
hudakz | 4:d774541a34da | 388 | |
hudakz | 4:d774541a34da | 389 | /** |
hudakz | 4:d774541a34da | 390 | * @brief |
hudakz | 4:d774541a34da | 391 | * @note |
hudakz | 4:d774541a34da | 392 | * @param |
hudakz | 4:d774541a34da | 393 | * @retval |
hudakz | 4:d774541a34da | 394 | */ |
hudakz | 4:d774541a34da | 395 | void Enc28J60Network::copyPacket |
hudakz | 4:d774541a34da | 396 | ( |
hudakz | 4:d774541a34da | 397 | memhandle dest_pkt, |
hudakz | 4:d774541a34da | 398 | memaddress dest_pos, |
hudakz | 4:d774541a34da | 399 | memhandle src_pkt, |
hudakz | 4:d774541a34da | 400 | memaddress src_pos, |
hudakz | 4:d774541a34da | 401 | uint16_t len |
hudakz | 4:d774541a34da | 402 | ) { |
hudakz | 4:d774541a34da | 403 | memblock* dest = &blocks[dest_pkt]; |
hudakz | 4:d774541a34da | 404 | memblock* src = src_pkt == UIP_RECEIVEBUFFERHANDLE ? &receivePkt : &blocks[src_pkt]; |
hudakz | 4:d774541a34da | 405 | memaddress start = src_pkt == UIP_RECEIVEBUFFERHANDLE |
hudakz | 4:d774541a34da | 406 | && src->begin + |
hudakz | 4:d774541a34da | 407 | src_pos > RXSTOP_INIT ? src->begin + |
hudakz | 4:d774541a34da | 408 | src_pos - |
hudakz | 4:d774541a34da | 409 | RXSTOP_INIT + |
hudakz | 4:d774541a34da | 410 | RXSTART_INIT : src->begin + |
hudakz | 4:d774541a34da | 411 | src_pos; |
hudakz | 4:d774541a34da | 412 | enc28J60_mempool_block_move_callback(dest->begin + dest_pos, start, len); |
hudakz | 4:d774541a34da | 413 | |
hudakz | 4:d774541a34da | 414 | // Move the RX read pointer to the start of the next received packet |
hudakz | 4:d774541a34da | 415 | // This frees the memory we just read out |
hudakz | 4:d774541a34da | 416 | setERXRDPT(); |
hudakz | 4:d774541a34da | 417 | } |
hudakz | 4:d774541a34da | 418 | |
hudakz | 4:d774541a34da | 419 | /** |
hudakz | 4:d774541a34da | 420 | * @brief |
hudakz | 4:d774541a34da | 421 | * @note |
hudakz | 4:d774541a34da | 422 | * @param |
hudakz | 4:d774541a34da | 423 | * @retval |
hudakz | 4:d774541a34da | 424 | */ |
hudakz | 4:d774541a34da | 425 | void Enc28J60Network::freePacket(void) { |
hudakz | 4:d774541a34da | 426 | setERXRDPT(); |
hudakz | 4:d774541a34da | 427 | } |
hudakz | 4:d774541a34da | 428 | |
hudakz | 4:d774541a34da | 429 | /** |
hudakz | 4:d774541a34da | 430 | * @brief |
hudakz | 4:d774541a34da | 431 | * @note |
hudakz | 4:d774541a34da | 432 | * @param |
hudakz | 4:d774541a34da | 433 | * @retval |
hudakz | 4:d774541a34da | 434 | */ |
hudakz | 4:d774541a34da | 435 | uint8_t Enc28J60Network::readOp(uint8_t op, uint8_t address) { |
hudakz | 4:d774541a34da | 436 | uint8_t result; |
hudakz | 4:d774541a34da | 437 | |
hudakz | 4:d774541a34da | 438 | _cs = 0; |
hudakz | 4:d774541a34da | 439 | |
hudakz | 4:d774541a34da | 440 | // issue read command |
hudakz | 4:d774541a34da | 441 | _spi.write(op | (address & ADDR_MASK)); |
hudakz | 4:d774541a34da | 442 | |
hudakz | 4:d774541a34da | 443 | // read data |
hudakz | 4:d774541a34da | 444 | result = _spi.write(0x00); |
hudakz | 4:d774541a34da | 445 | |
hudakz | 4:d774541a34da | 446 | // do dummy read if needed (for mac and mii, see datasheet page 29) |
hudakz | 8:4acb22344932 | 447 | if (address & 0x80) |
hudakz | 4:d774541a34da | 448 | result = _spi.write(0x00); |
hudakz | 4:d774541a34da | 449 | |
hudakz | 4:d774541a34da | 450 | // release CS |
hudakz | 4:d774541a34da | 451 | _cs = 1; |
hudakz | 4:d774541a34da | 452 | return(result); |
hudakz | 4:d774541a34da | 453 | } |
hudakz | 4:d774541a34da | 454 | |
hudakz | 4:d774541a34da | 455 | /** |
hudakz | 4:d774541a34da | 456 | * @brief |
hudakz | 4:d774541a34da | 457 | * @note |
hudakz | 4:d774541a34da | 458 | * @param |
hudakz | 4:d774541a34da | 459 | * @retval |
hudakz | 4:d774541a34da | 460 | */ |
hudakz | 4:d774541a34da | 461 | void Enc28J60Network::writeOp(uint8_t op, uint8_t address, uint8_t data) { |
hudakz | 4:d774541a34da | 462 | _cs = 0; |
hudakz | 4:d774541a34da | 463 | |
hudakz | 4:d774541a34da | 464 | // issue write command |
hudakz | 4:d774541a34da | 465 | _spi.write(op | (address & ADDR_MASK)); |
hudakz | 4:d774541a34da | 466 | |
hudakz | 4:d774541a34da | 467 | // write data |
hudakz | 4:d774541a34da | 468 | _spi.write(data); |
hudakz | 4:d774541a34da | 469 | _cs = 1; |
hudakz | 4:d774541a34da | 470 | } |
hudakz | 4:d774541a34da | 471 | |
hudakz | 4:d774541a34da | 472 | /** |
hudakz | 4:d774541a34da | 473 | * @brief |
hudakz | 4:d774541a34da | 474 | * @note |
hudakz | 4:d774541a34da | 475 | * @param |
hudakz | 4:d774541a34da | 476 | * @retval |
hudakz | 4:d774541a34da | 477 | */ |
hudakz | 4:d774541a34da | 478 | void Enc28J60Network::readBuffer(uint16_t len, uint8_t* data) { |
hudakz | 4:d774541a34da | 479 | _cs = 0; |
hudakz | 4:d774541a34da | 480 | |
hudakz | 4:d774541a34da | 481 | // issue read command |
hudakz | 4:d774541a34da | 482 | _spi.write(ENC28J60_READ_BUF_MEM); |
hudakz | 8:4acb22344932 | 483 | while (len) { |
hudakz | 4:d774541a34da | 484 | len--; |
hudakz | 4:d774541a34da | 485 | |
hudakz | 4:d774541a34da | 486 | // read data |
hudakz | 4:d774541a34da | 487 | *data = _spi.write(0x00); |
hudakz | 4:d774541a34da | 488 | data++; |
hudakz | 4:d774541a34da | 489 | } |
hudakz | 4:d774541a34da | 490 | |
hudakz | 4:d774541a34da | 491 | *data = '\0'; |
hudakz | 4:d774541a34da | 492 | _cs = 1; |
hudakz | 4:d774541a34da | 493 | } |
hudakz | 4:d774541a34da | 494 | |
hudakz | 4:d774541a34da | 495 | /** |
hudakz | 4:d774541a34da | 496 | * @brief |
hudakz | 4:d774541a34da | 497 | * @note |
hudakz | 4:d774541a34da | 498 | * @param |
hudakz | 4:d774541a34da | 499 | * @retval |
hudakz | 4:d774541a34da | 500 | */ |
hudakz | 4:d774541a34da | 501 | void Enc28J60Network::writeBuffer(uint16_t len, uint8_t* data) { |
hudakz | 4:d774541a34da | 502 | _cs = 0; |
hudakz | 4:d774541a34da | 503 | |
hudakz | 4:d774541a34da | 504 | // issue write command |
hudakz | 4:d774541a34da | 505 | _spi.write(ENC28J60_WRITE_BUF_MEM); |
hudakz | 8:4acb22344932 | 506 | while (len) { |
hudakz | 4:d774541a34da | 507 | len--; |
hudakz | 4:d774541a34da | 508 | |
hudakz | 4:d774541a34da | 509 | // write data |
hudakz | 4:d774541a34da | 510 | _spi.write(*data); |
hudakz | 4:d774541a34da | 511 | data++; |
hudakz | 4:d774541a34da | 512 | } |
hudakz | 4:d774541a34da | 513 | |
hudakz | 4:d774541a34da | 514 | _cs = 1; |
hudakz | 4:d774541a34da | 515 | } |
hudakz | 4:d774541a34da | 516 | |
hudakz | 4:d774541a34da | 517 | /** |
hudakz | 4:d774541a34da | 518 | * @brief |
hudakz | 4:d774541a34da | 519 | * @note |
hudakz | 4:d774541a34da | 520 | * @param |
hudakz | 4:d774541a34da | 521 | * @retval |
hudakz | 4:d774541a34da | 522 | */ |
hudakz | 4:d774541a34da | 523 | void Enc28J60Network::setBank(uint8_t address) { |
hudakz | 4:d774541a34da | 524 | |
hudakz | 4:d774541a34da | 525 | // set the bank (if needed) |
hudakz | 4:d774541a34da | 526 | |
hudakz | 8:4acb22344932 | 527 | if ((address & BANK_MASK) != bank) { |
hudakz | 4:d774541a34da | 528 | |
hudakz | 4:d774541a34da | 529 | // set the bank |
hudakz | 4:d774541a34da | 530 | writeOp(ENC28J60_BIT_FIELD_CLR, ECON1, (ECON1_BSEL1 | ECON1_BSEL0)); |
hudakz | 4:d774541a34da | 531 | writeOp(ENC28J60_BIT_FIELD_SET, ECON1, (address & BANK_MASK) >> 5); |
hudakz | 4:d774541a34da | 532 | bank = (address & BANK_MASK); |
hudakz | 4:d774541a34da | 533 | } |
hudakz | 4:d774541a34da | 534 | } |
hudakz | 4:d774541a34da | 535 | |
hudakz | 4:d774541a34da | 536 | /** |
hudakz | 4:d774541a34da | 537 | * @brief |
hudakz | 4:d774541a34da | 538 | * @note |
hudakz | 4:d774541a34da | 539 | * @param |
hudakz | 4:d774541a34da | 540 | * @retval |
hudakz | 4:d774541a34da | 541 | */ |
hudakz | 4:d774541a34da | 542 | uint8_t Enc28J60Network::readReg(uint8_t address) { |
hudakz | 4:d774541a34da | 543 | |
hudakz | 4:d774541a34da | 544 | // set the bank |
hudakz | 4:d774541a34da | 545 | |
hudakz | 4:d774541a34da | 546 | setBank(address); |
hudakz | 4:d774541a34da | 547 | |
hudakz | 4:d774541a34da | 548 | // do the read |
hudakz | 4:d774541a34da | 549 | return readOp(ENC28J60_READ_CTRL_REG, address); |
hudakz | 4:d774541a34da | 550 | } |
hudakz | 4:d774541a34da | 551 | |
hudakz | 4:d774541a34da | 552 | /** |
hudakz | 4:d774541a34da | 553 | * @brief |
hudakz | 4:d774541a34da | 554 | * @note |
hudakz | 4:d774541a34da | 555 | * @param |
hudakz | 4:d774541a34da | 556 | * @retval |
hudakz | 4:d774541a34da | 557 | */ |
hudakz | 4:d774541a34da | 558 | void Enc28J60Network::writeReg(uint8_t address, uint8_t data) { |
hudakz | 4:d774541a34da | 559 | |
hudakz | 4:d774541a34da | 560 | // set the bank |
hudakz | 4:d774541a34da | 561 | |
hudakz | 4:d774541a34da | 562 | setBank(address); |
hudakz | 4:d774541a34da | 563 | |
hudakz | 4:d774541a34da | 564 | // do the write |
hudakz | 4:d774541a34da | 565 | writeOp(ENC28J60_WRITE_CTRL_REG, address, data); |
hudakz | 4:d774541a34da | 566 | } |
hudakz | 4:d774541a34da | 567 | |
hudakz | 4:d774541a34da | 568 | /** |
hudakz | 4:d774541a34da | 569 | * @brief |
hudakz | 4:d774541a34da | 570 | * @note |
hudakz | 4:d774541a34da | 571 | * @param |
hudakz | 4:d774541a34da | 572 | * @retval |
hudakz | 4:d774541a34da | 573 | */ |
hudakz | 4:d774541a34da | 574 | void Enc28J60Network::writeRegPair(uint8_t address, uint16_t data) { |
hudakz | 4:d774541a34da | 575 | |
hudakz | 4:d774541a34da | 576 | // set the bank |
hudakz | 4:d774541a34da | 577 | |
hudakz | 4:d774541a34da | 578 | setBank(address); |
hudakz | 4:d774541a34da | 579 | |
hudakz | 4:d774541a34da | 580 | // do the write |
hudakz | 4:d774541a34da | 581 | writeOp(ENC28J60_WRITE_CTRL_REG, address, (data & 0xFF)); |
hudakz | 4:d774541a34da | 582 | writeOp(ENC28J60_WRITE_CTRL_REG, address + 1, (data) >> 8); |
hudakz | 4:d774541a34da | 583 | } |
hudakz | 4:d774541a34da | 584 | |
hudakz | 4:d774541a34da | 585 | /** |
hudakz | 4:d774541a34da | 586 | * @brief |
hudakz | 4:d774541a34da | 587 | * @note |
hudakz | 4:d774541a34da | 588 | * @param |
hudakz | 4:d774541a34da | 589 | * @retval |
hudakz | 4:d774541a34da | 590 | */ |
hudakz | 4:d774541a34da | 591 | void Enc28J60Network::phyWrite(uint8_t address, uint16_t data) { |
hudakz | 4:d774541a34da | 592 | |
hudakz | 4:d774541a34da | 593 | // set the PHY register address |
hudakz | 4:d774541a34da | 594 | |
hudakz | 4:d774541a34da | 595 | writeReg(MIREGADR, address); |
hudakz | 4:d774541a34da | 596 | |
hudakz | 4:d774541a34da | 597 | // write the PHY data |
hudakz | 4:d774541a34da | 598 | writeRegPair(MIWRL, data); |
hudakz | 4:d774541a34da | 599 | |
hudakz | 4:d774541a34da | 600 | // wait until the PHY write completes |
hudakz | 8:4acb22344932 | 601 | while (readReg(MISTAT) & MISTAT_BUSY) { |
hudakz | 4:d774541a34da | 602 | wait_us(15); |
hudakz | 4:d774541a34da | 603 | } |
hudakz | 4:d774541a34da | 604 | } |
hudakz | 4:d774541a34da | 605 | |
hudakz | 4:d774541a34da | 606 | /** |
hudakz | 4:d774541a34da | 607 | * @brief |
hudakz | 4:d774541a34da | 608 | * @note |
hudakz | 4:d774541a34da | 609 | * @param |
hudakz | 4:d774541a34da | 610 | * @retval |
hudakz | 4:d774541a34da | 611 | */ |
hudakz | 4:d774541a34da | 612 | uint16_t Enc28J60Network::phyRead(uint8_t address) { |
hudakz | 4:d774541a34da | 613 | writeReg(MIREGADR, address); |
hudakz | 4:d774541a34da | 614 | writeReg(MICMD, MICMD_MIIRD); |
hudakz | 4:d774541a34da | 615 | |
hudakz | 4:d774541a34da | 616 | // wait until the PHY read completes |
hudakz | 8:4acb22344932 | 617 | while (readReg(MISTAT) & MISTAT_BUSY) { |
hudakz | 4:d774541a34da | 618 | wait_us(15); |
hudakz | 4:d774541a34da | 619 | } //and MIRDH |
hudakz | 4:d774541a34da | 620 | |
hudakz | 4:d774541a34da | 621 | writeReg(MICMD, 0); |
hudakz | 4:d774541a34da | 622 | return(readReg(MIRDL) | readReg(MIRDH) << 8); |
hudakz | 4:d774541a34da | 623 | } |
hudakz | 4:d774541a34da | 624 | |
hudakz | 4:d774541a34da | 625 | /** |
hudakz | 4:d774541a34da | 626 | * @brief |
hudakz | 4:d774541a34da | 627 | * @note |
hudakz | 4:d774541a34da | 628 | * @param |
hudakz | 4:d774541a34da | 629 | * @retval |
hudakz | 4:d774541a34da | 630 | */ |
hudakz | 4:d774541a34da | 631 | void Enc28J60Network::clkout(uint8_t clk) { |
hudakz | 4:d774541a34da | 632 | |
hudakz | 4:d774541a34da | 633 | //setup clkout: 2 is 12.5MHz: |
hudakz | 4:d774541a34da | 634 | |
hudakz | 4:d774541a34da | 635 | writeReg(ECOCON, clk & 0x7); |
hudakz | 4:d774541a34da | 636 | } |
hudakz | 4:d774541a34da | 637 | |
hudakz | 4:d774541a34da | 638 | // read the revision of the chip: |
hudakz | 4:d774541a34da | 639 | uint8_t Enc28J60Network::getrev(void) { |
hudakz | 4:d774541a34da | 640 | return(readReg(EREVID)); |
hudakz | 4:d774541a34da | 641 | } |
hudakz | 4:d774541a34da | 642 | |
hudakz | 4:d774541a34da | 643 | /** |
hudakz | 4:d774541a34da | 644 | * @brief |
hudakz | 4:d774541a34da | 645 | * @note |
hudakz | 4:d774541a34da | 646 | * @param |
hudakz | 4:d774541a34da | 647 | * @retval |
hudakz | 4:d774541a34da | 648 | */ |
hudakz | 4:d774541a34da | 649 | uint16_t Enc28J60Network::chksum(uint16_t sum, memhandle handle, memaddress pos, uint16_t len) { |
hudakz | 4:d774541a34da | 650 | uint8_t spdr; |
hudakz | 4:d774541a34da | 651 | uint16_t t; |
hudakz | 4:d774541a34da | 652 | uint16_t i; |
hudakz | 4:d774541a34da | 653 | |
hudakz | 4:d774541a34da | 654 | len = setReadPtr(handle, pos, len) - 1; |
hudakz | 4:d774541a34da | 655 | _cs = 0; |
hudakz | 4:d774541a34da | 656 | |
hudakz | 4:d774541a34da | 657 | // issue read command |
hudakz | 4:d774541a34da | 658 | spdr = _spi.write(ENC28J60_READ_BUF_MEM); |
hudakz | 8:4acb22344932 | 659 | for (i = 0; i < len; i += 2) { |
hudakz | 4:d774541a34da | 660 | |
hudakz | 4:d774541a34da | 661 | // read data |
hudakz | 4:d774541a34da | 662 | spdr = _spi.write(0x00); |
hudakz | 4:d774541a34da | 663 | t = spdr << 8; |
hudakz | 4:d774541a34da | 664 | spdr = _spi.write(0x00); |
hudakz | 4:d774541a34da | 665 | t += spdr; |
hudakz | 4:d774541a34da | 666 | sum += t; |
hudakz | 8:4acb22344932 | 667 | if (sum < t) { |
hudakz | 4:d774541a34da | 668 | sum++; /* carry */ |
hudakz | 4:d774541a34da | 669 | } |
hudakz | 4:d774541a34da | 670 | } |
hudakz | 4:d774541a34da | 671 | |
hudakz | 8:4acb22344932 | 672 | if (i == len) { |
hudakz | 4:d774541a34da | 673 | spdr = _spi.write(0x00); |
hudakz | 4:d774541a34da | 674 | t = (spdr << 8) + 0; |
hudakz | 4:d774541a34da | 675 | sum += t; |
hudakz | 8:4acb22344932 | 676 | if (sum < t) { |
hudakz | 4:d774541a34da | 677 | sum++; /* carry */ |
hudakz | 4:d774541a34da | 678 | } |
hudakz | 4:d774541a34da | 679 | } |
hudakz | 4:d774541a34da | 680 | |
hudakz | 4:d774541a34da | 681 | _cs = 1; |
hudakz | 4:d774541a34da | 682 | |
hudakz | 4:d774541a34da | 683 | /* Return sum in host byte order. */ |
hudakz | 4:d774541a34da | 684 | return sum; |
hudakz | 4:d774541a34da | 685 | } |
hudakz | 4:d774541a34da | 686 | |
hudakz | 4:d774541a34da | 687 | /** |
hudakz | 4:d774541a34da | 688 | * @brief |
hudakz | 4:d774541a34da | 689 | * @note |
hudakz | 4:d774541a34da | 690 | * @param |
hudakz | 4:d774541a34da | 691 | * @retval |
hudakz | 4:d774541a34da | 692 | */ |
hudakz | 4:d774541a34da | 693 | void Enc28J60Network::powerOff(void) { |
hudakz | 4:d774541a34da | 694 | writeOp(ENC28J60_BIT_FIELD_CLR, ECON1, ECON1_RXEN); |
hudakz | 4:d774541a34da | 695 | wait_ms(50); |
hudakz | 4:d774541a34da | 696 | writeOp(ENC28J60_BIT_FIELD_SET, ECON2, ECON2_VRPS); |
hudakz | 4:d774541a34da | 697 | wait_ms(50); |
hudakz | 4:d774541a34da | 698 | writeOp(ENC28J60_BIT_FIELD_SET, ECON2, ECON2_PWRSV); |
hudakz | 4:d774541a34da | 699 | } |
hudakz | 4:d774541a34da | 700 | |
hudakz | 4:d774541a34da | 701 | /** |
hudakz | 4:d774541a34da | 702 | * @brief |
hudakz | 4:d774541a34da | 703 | * @note |
hudakz | 4:d774541a34da | 704 | * @param |
hudakz | 4:d774541a34da | 705 | * @retval |
hudakz | 4:d774541a34da | 706 | */ |
hudakz | 4:d774541a34da | 707 | void Enc28J60Network::powerOn(void) { |
hudakz | 4:d774541a34da | 708 | writeOp(ENC28J60_BIT_FIELD_CLR, ECON2, ECON2_PWRSV); |
hudakz | 4:d774541a34da | 709 | wait_ms(50); |
hudakz | 4:d774541a34da | 710 | writeOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_RXEN); |
hudakz | 4:d774541a34da | 711 | wait_ms(50); |
hudakz | 4:d774541a34da | 712 | } |
hudakz | 4:d774541a34da | 713 | |
hudakz | 4:d774541a34da | 714 | /** |
hudakz | 4:d774541a34da | 715 | * @brief |
hudakz | 4:d774541a34da | 716 | * @note |
hudakz | 4:d774541a34da | 717 | * @param |
hudakz | 4:d774541a34da | 718 | * @retval |
hudakz | 4:d774541a34da | 719 | */ |
hudakz | 4:d774541a34da | 720 | bool Enc28J60Network::linkStatus(void) { |
hudakz | 4:d774541a34da | 721 | return(phyRead(PHSTAT2) & 0x0400) > 0; |
hudakz | 4:d774541a34da | 722 | } |