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Enc28J60Network.cpp
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Enc28J60Network.cpp
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/*
Enc28J60NetworkClass.h
UIPEthernet network driver for Microchip ENC28J60 Ethernet Interface.
Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
All rights reserved.
based on enc28j60.c file from the AVRlib library by Pascal Stang.
For AVRlib See http://www.procyonengineering.com/
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Enc28J60Network.h"
#if defined(ARDUINO)
#include "Arduino.h"
#endif
#if defined(__MBED__)
#include <mbed.h>
#include "mbed/millis.h"
#define delay(x) wait_ms(x)
#endif
#include "logging.h"
// KH, For nRF52
//#define ENC28J60_USE_SPILIB true
uint8_t ENC28J60ControlCS = ENC28J60_CONTROL_CS;
#if ENC28J60_USE_SPILIB
#if defined(ARDUINO)
#if defined(STM32F2)
#include <SPI.h>
#elif (defined(ARDUINO_ARCH_STM32) || !defined(STM32F3)) && !defined(__STM32F4__)
#include <SPI.h>
extern SPIClass SPI;
//#elif defined(ARDUINO_ARCH_AMEBA)
//SPIClass SPI((void *)(&spi_obj), 11, 12, 13, 10);
//SPI _spi(SPI_MOSI,SPI_MISO,SPI_SCK,ENC28J60ControlCS);
#else
#include "HardwareSPI.h"
extern HardwareSPI SPI(1);
#endif
#endif
#if defined(__MBED__)
SPI _spi(SPI_MOSI,SPI_MISO,SPI_SCK);
DigitalOut _cs(ENC28J60ControlCS);
Serial LogObject(SERIAL_TX,SERIAL_RX);
#endif
#endif
extern "C" {
#if defined(ARDUINO_ARCH_AVR)
// AVR-specific code
#include <avr/io.h>
#elif defined(ARDUINO_ARCH_SAM)
// SAM-specific code
#elif defined(ARDUINO_ARCH_SAMD)
// SAMD-specific code
#else
// generic, non-platform specific code
#endif
#include "enc28j60.h"
#include "uip.h"
}
#if defined(ARDUINO)
// set CS to 0 = active
#define CSACTIVE digitalWrite(ENC28J60ControlCS, LOW)
// set CS to 1 = passive
#define CSPASSIVE digitalWrite(ENC28J60ControlCS, HIGH)
#endif
#if defined(__MBED__)
// set CS to 0 = active
#define CSACTIVE _cs=0
// set CS to 1 = passive
#define CSPASSIVE _cs=1
#endif
//
#if defined(ARDUINO_ARCH_AVR)
#define waitspi() while(!(SPSR&(1<<SPIF)))
#endif
uint16_t Enc28J60Network::nextPacketPtr;
uint8_t Enc28J60Network::bank=0xff;
uint8_t Enc28J60Network::erevid=0;
struct memblock Enc28J60Network::receivePkt;
bool Enc28J60Network::broadcast_enabled = false;
void Enc28J60Network::init(uint8_t* macaddr)
{
Serial.print("ENC28J60_CONTROL_CS =");
Serial.println(ENC28J60_CONTROL_CS);
Serial.print("SS =");
Serial.println(SS);
Serial.print("SPI_MOSI =");
Serial.println(SPI_MOSI);
Serial.print("SPI_MISO =");
Serial.println(SPI_MISO);
Serial.print("SPI_SCK =");
Serial.println(SPI_SCK);
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::init(uint8_t* macaddr) DEBUG_V3:Function started"));
#endif
receivePkt.begin = 0;
receivePkt.size = 0;
unsigned int timeout = 15;
MemoryPool::init(); // 1 byte in between RX_STOP_INIT and pool to allow prepending of controlbyte
// initialize I/O
// ss as output:
#if defined(ARDUINO)
pinMode(ENC28J60ControlCS, OUTPUT);
#endif
#if defined(__MBED__)
millis_start();
#endif
CSPASSIVE; // ss=0
//
#if ACTLOGLEVEL>=LOG_DEBUG
LogObject.uart_send_str(F("ENC28J60::init DEBUG:csPin = "));
LogObject.uart_send_decln(ENC28J60ControlCS);
LogObject.uart_send_str(F("ENC28J60::init DEBUG:miso = "));
LogObject.uart_send_decln(SPI_MISO);
LogObject.uart_send_str(F("ENC28J60::init DEBUG:mosi = "));
LogObject.uart_send_decln(SPI_MOSI);
LogObject.uart_send_str(F("ENC28J60::init DEBUG:sck = "));
LogObject.uart_send_decln(SPI_SCK);
#endif
#if ENC28J60_USE_SPILIB
#if ACTLOGLEVEL>=LOG_DEBUG
LogObject.uart_send_strln(F("ENC28J60::init DEBUG:Use SPI lib SPI.begin()"));
#endif
#if defined(ARDUINO)
#if defined(__STM32F3__) || (!defined(ARDUINO_ARCH_STM32) && defined(STM32F3)) || defined(__STM32F4__)
SPI.begin(SPI_9MHZ, MSBFIRST, 0);
#else
SPI.begin();
#endif
#endif
#if defined(ARDUINO_ARCH_AVR)
// AVR-specific code
SPI.setClockDivider(SPI_CLOCK_DIV2); //results in 8MHZ at 16MHZ system clock.
#elif defined(ARDUINO_ARCH_SAM)
// SAM-specific code
SPI.setClockDivider(10); //defaults to 21 which results in aprox. 4MHZ. A 10 should result in a little more than 8MHZ.
#elif defined(ARDUINO_ARCH_SAMD)
// SAMD-specific code
// Should we set clock divider?
SPI.setClockDivider(10);
#elif defined(__STM32F1__) || defined(__STM32F3__)
// generic, non-platform specific code
#define USE_STM32F1_DMAC 1 //on STM32
// BOARD_NR_SPI >= 1 BOARD_SPI1_NSS_PIN, BOARD_SPI1_SCK_PIN, BOARD_SPI1_MISO_PIN, BOARD_SPI1_MOSI_PIN
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
SPI.setClockDivider(SPI_CLOCK_DIV8); //value 8 the result is 9MHz at 72MHz clock.
#else
#if defined(ARDUINO)
#if !defined(__STM32F3__) && !defined(STM32F3) && !defined(__STM32F4__)
SPI.setBitOrder(MSBFIRST);
#endif
//Settings for ESP8266
//SPI.setDataMode(SPI_MODE0);
//SPI.setClockDivider(SPI_CLOCK_DIV16);
#endif
#if defined(__MBED__)
_spi.format(8, 0); // 8bit, mode 0
_spi.frequency(7000000); // 7MHz
#endif
#endif
#else
#if ACTLOGLEVEL>=LOG_DEBUG
LogObject.uart_send_strln(F("ENC28J60::init DEBUG:Use Native hardware SPI"));
#endif
pinMode(SPI_MOSI, OUTPUT);
pinMode(SPI_SCK, OUTPUT);
pinMode(SPI_MISO, INPUT);
//Hardware SS must be configured as OUTPUT to enable SPI-master (regardless of which pin is configured as ENC28J60ControlCS)
pinMode(SS, OUTPUT);
digitalWrite(SS,HIGH);
digitalWrite(SPI_MOSI, LOW);
digitalWrite(SPI_SCK, LOW);
// initialize SPI interface
// master mode and Fosc/2 clock:
SPCR = (1<<SPE)|(1<<MSTR);
SPSR |= (1<<SPI2X);
#endif
// perform system reset
writeOp(ENC28J60_SOFT_RESET, 0, ENC28J60_SOFT_RESET);
delay(2); // errata B7/2
delay(50);
// check CLKRDY bit to see if reset is complete
// The CLKRDY does not work. See Rev. B4 Silicon Errata point. Just wait.
//while(!(readReg(ESTAT) & ESTAT_CLKRDY));
// do bank 0 stuff
// initialize receive buffer
// 16-bit transfers, must write low byte first
// set receive buffer start address
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("ENC28J60::init DEBUG_V3:Before readOp(ENC28J60_READ_CTRL_REG, ESTAT)"));
#endif
nextPacketPtr = RXSTART_INIT;
while ((!readOp(ENC28J60_READ_CTRL_REG, ESTAT) & ESTAT_CLKRDY) && (timeout>0))
{
timeout=timeout-1;
delay(10);
#if defined(ESP8266)
wdt_reset();
#endif
}
#if ACTLOGLEVEL>=LOG_ERR
if (timeout==0) {LogObject.uart_send_strln(F("ENC28J60::init ERROR:TIMEOUT !!"));}
#endif
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("ENC28J60::init DEBUG_V3:After readOp(ENC28J60_READ_CTRL_REG, ESTAT)"));
#endif
// Rx start
writeRegPair(ERXSTL, RXSTART_INIT);
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("ENC28J60::init DEBUG_V3:After writeRegPair(ERXSTL, RXSTART_INIT)"));
#endif
// set receive pointer address
writeRegPair(ERXRDPTL, RXSTART_INIT);
// RX end
writeRegPair(ERXNDL, RXSTOP_INIT);
// TX start
//writeRegPair(ETXSTL, TXSTART_INIT);
// TX end
//writeRegPair(ETXNDL, TXSTOP_INIT);
// do bank 1 stuff, packet filter:
// For broadcast packets we allow only ARP packtets
// All other packets should be unicast only for our mac (MAADR)
//
// The pattern to match on is therefore
// Type ETH.DST
// ARP BROADCAST
// 06 08 -- ff ff ff ff ff ff -> ip checksum for theses bytes=f7f9
// in binary these poitions are:11 0000 0011 1111
// This is hex 303F->EPMM0=0x3f,EPMM1=0x30
//TODO define specific pattern to receive dhcp-broadcast packages instead of setting ERFCON_BCEN!
// enableBroadcast(); // change to add ERXFCON_BCEN recommended by epam
writeReg(ERXFCON, ERXFCON_UCEN|ERXFCON_CRCEN|ERXFCON_PMEN|ERXFCON_BCEN);
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("ENC28J60::init DEBUG_V3:After writeReg(ERXFCON, ERXFCON_UCEN|ERXFCON_CRCEN|ERXFCON_PMEN|ERXFCON_BCEN)"));
#endif
#if defined(ESP8266)
wdt_reset();
#endif
writeRegPair(EPMM0, 0x303f);
writeRegPair(EPMCSL, 0xf7f9);
//
//
// do bank 2 stuff
// enable MAC receive
// and bring MAC out of reset (writes 0x00 to MACON2)
writeRegPair(MACON1, MACON1_MARXEN|MACON1_TXPAUS|MACON1_RXPAUS);
// enable automatic padding to 60bytes and CRC operations
writeOp(ENC28J60_BIT_FIELD_SET, MACON3, MACON3_PADCFG0|MACON3_TXCRCEN|MACON3_FRMLNEN);
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("ENC28J60::init DEBUG_V3:After writeOp(ENC28J60_BIT_FIELD_SET, MACON3, MACON3_PADCFG0|MACON3_TXCRCEN|MACON3_FRMLNEN)"));
#endif
// set inter-frame gap (non-back-to-back)
writeRegPair(MAIPGL, 0x0C12);
// set inter-frame gap (back-to-back)
writeReg(MABBIPG, 0x12);
// Set the maximum packet size which the controller will accept
// Do not send packets longer than MAX_FRAMELEN:
writeRegPair(MAMXFLL, MAX_FRAMELEN);
// do bank 3 stuff
// write MAC address
// NOTE: MAC address in ENC28J60 is byte-backward
writeReg(MAADR5, macaddr[0]);
writeReg(MAADR4, macaddr[1]);
writeReg(MAADR3, macaddr[2]);
writeReg(MAADR2, macaddr[3]);
writeReg(MAADR1, macaddr[4]);
writeReg(MAADR0, macaddr[5]);
// no loopback of transmitted frames
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("ENC28J60::init DEBUG_V3:Before phyWrite(PHCON2, PHCON2_HDLDIS)"));
#endif
phyWrite(PHCON2, PHCON2_HDLDIS);
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("ENC28J60::init DEBUG_V3:After phyWrite(PHCON2, PHCON2_HDLDIS)"));
#endif
// switch to bank 0
setBank(ECON1);
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("ENC28J60::init DEBUG_V3:After setBank(ECON1)"));
#endif
// enable interrutps
writeOp(ENC28J60_BIT_FIELD_SET, EIE, EIE_INTIE|EIE_PKTIE);
// enable packet reception
writeOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_RXEN);
//Configure leds
phyWrite(PHLCON,0x476);
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("ENC28J60::init DEBUG_V3:Before readReg(EREVID);"));
#endif
erevid=readReg(EREVID);
if (erevid==0xFF) {erevid=0;}
// microchip forgot to step the number on the silcon when they
// released the revision B7. 6 is now rev B7. We still have
// to see what they do when they release B8. At the moment
// there is no B8 out yet
//if (erevid > 5) ++erevid;
#if ACTLOGLEVEL>=LOG_INFO
LogObject.uart_send_str(F("ENC28J60::init INFO: Chip erevid="));
LogObject.uart_send_dec(erevid);
LogObject.uart_send_strln(F(" initialization completed."));
#endif
// return Enc28J60Network::erevid;
}
memhandle
Enc28J60Network::receivePacket(void)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::receivePacket(void) DEBUG_V3:Function started"));
#endif
#if defined(ESP8266)
wdt_reset();
#endif
uint8_t rxstat;
uint16_t len;
// check if a packet has been received and buffered
//if( !(readReg(EIR) & EIR_PKTIF) ){
// The above does not work. See Rev. B4 Silicon Errata point 6.
#if ACTLOGLEVEL>=LOG_ERR
if (erevid==0)
{
LogObject.uart_send_strln(F("Enc28J60Network::receivePacket(void) ERROR:ENC28j50 Device not found !! Bypass receivePacket function !!"));
}
#endif
uint8_t epktcnt=readReg(EPKTCNT);
if ((erevid!=0) && (epktcnt!=0))
{
uint16_t readPtr = nextPacketPtr+6 > RXSTOP_INIT ? nextPacketPtr+6-((RXSTOP_INIT + 1)-RXSTART_INIT) : nextPacketPtr+6;
// Set the read pointer to the start of the received packet
writeRegPair(ERDPTL, nextPacketPtr);
// read the next packet pointer
nextPacketPtr = readOp(ENC28J60_READ_BUF_MEM, 0);
nextPacketPtr |= readOp(ENC28J60_READ_BUF_MEM, 0) << 8;
// read the packet length (see datasheet page 43)
len = readOp(ENC28J60_READ_BUF_MEM, 0);
len |= readOp(ENC28J60_READ_BUF_MEM, 0) << 8;
len -= 4; //remove the CRC count
// read the receive status (see datasheet page 43)
rxstat = readOp(ENC28J60_READ_BUF_MEM, 0);
//rxstat |= readOp(ENC28J60_READ_BUF_MEM, 0) << 8;
#if ACTLOGLEVEL>=LOG_DEBUG
LogObject.uart_send_str(F("Enc28J60Network::receivePacket(void) DEBUG:receivePacket ["));
LogObject.uart_send_hex(readPtr);
LogObject.uart_send_str(F("-"));
LogObject.uart_send_hex((readPtr+len) % (RXSTOP_INIT+1));
LogObject.uart_send_str(F("], next: "));
LogObject.uart_send_hex(nextPacketPtr);
LogObject.uart_send_str(F(", stat: "));
LogObject.uart_send_hex(rxstat);
LogObject.uart_send_str(F(", Packet count: "));
LogObject.uart_send_dec(epktcnt);
LogObject.uart_send_str(F(" -> "));
LogObject.uart_send_strln((rxstat & 0x80)!=0 ? "OK" : "failed");
#endif
// decrement the packet counter indicate we are done with this packet
writeOp(ENC28J60_BIT_FIELD_SET, ECON2, ECON2_PKTDEC);
// check CRC and symbol errors (see datasheet page 44, table 7-3):
// The ERXFCON.CRCEN is set by default. Normally we should not
// need to check this.
if (((rxstat & 0x80) != 0) && (nextPacketPtr<=RXSTOP_INIT))
{
receivePkt.begin = readPtr;
receivePkt.size = len;
#if ACTLOGLEVEL>=LOG_DEBUG
LogObject.uart_send_str(F("Enc28J60Network::receivePacket(void) DEBUG: rxstat OK. receivePkt.size="));
LogObject.uart_send_decln(len);
#endif
return UIP_RECEIVEBUFFERHANDLE;
}
// Move the RX read pointer to the start of the next received packet
// This frees the memory we just read out
setERXRDPT();
}
return (NOBLOCK);
}
void
Enc28J60Network::setERXRDPT(void)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::setERXRDPT(void) DEBUG_V3:Function started"));
#endif
// Make sure the value is odd. See Rev. B1,B4,B5,B7 Silicon Errata issues 14
uint16_t actnextPacketPtr = nextPacketPtr == RXSTART_INIT ? RXSTOP_INIT : nextPacketPtr-1;
#if ACTLOGLEVEL>=LOG_DEBUG
LogObject.uart_send_str(F("Enc28J60Network::setERXRDPT(void) DEBUG:Set actnextPacketPtr:"));
LogObject.uart_send_hexln(actnextPacketPtr);
#endif
// datasheet: The ENC28J60 will always write up to, but not including
writeRegPair(ERXRDPTL, actnextPacketPtr);
}
memaddress
Enc28J60Network::blockSize(memhandle handle)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::blockSize(memhandle handle) DEBUG_V3:Function started"));
#endif
return ((handle == NOBLOCK) || (erevid==0)) ? 0 : handle == UIP_RECEIVEBUFFERHANDLE ? receivePkt.size : blocks[handle].size;
}
bool
Enc28J60Network::sendPacket(memhandle handle)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::sendPacket(memhandle handle) INFO:Function started"));
#endif
#if defined(ESP8266)
wdt_reset();
#endif
if (erevid==0)
{
#if ACTLOGLEVEL>=LOG_ERR
LogObject.uart_send_strln(F("Enc28J60Network::sendPacket(memhandle handle) ERROR:ENC28j50 Device not found !! Bypass sendPacket function !!"));
#endif
return false;
}
memblock *packet = &blocks[handle];
uint16_t start = packet->begin; // includes the UIP_SENDBUFFER_OFFSET for control byte
uint16_t end = start + packet->size - 1 - UIP_SENDBUFFER_PADDING; // end = start + size - 1 and padding for TSV is no included
// write control-byte (if not 0 anyway)
writeByte(start, 0);
#if ACTLOGLEVEL>=LOG_DEBUG
LogObject.uart_send_str(F("Enc28J60Network::sendPacket(memhandle handle) DEBUG:sendPacket("));
LogObject.uart_send_dec(handle);
LogObject.uart_send_str(F(") ["));
LogObject.uart_send_hex(start);
LogObject.uart_send_str(F("-"));
LogObject.uart_send_hex(end);
LogObject.uart_send_str(F("]: "));
for (uint16_t i=start; i<=end; i++)
{
LogObject.uart_send_hex(readByte(i));
LogObject.uart_send_str(F(" "));
}
LogObject.uart_send_strln(F(""));
#endif
// TX start
writeRegPair(ETXSTL, start);
// Set the TXND pointer to correspond to the packet size given
writeRegPair(ETXNDL, end);
bool success = false;
// See Rev. B7 Silicon Errata issues 12 and 13
for (uint8_t retry = 0; retry < TX_COLLISION_RETRY_COUNT; retry++)
{
// Reset the transmit logic problem. Errata 12
writeOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_TXRST);
writeOp(ENC28J60_BIT_FIELD_CLR, ECON1, ECON1_TXRST);
writeOp(ENC28J60_BIT_FIELD_CLR, EIR, EIR_TXERIF | EIR_TXIF);
// send the contents of the transmit buffer onto the network
writeOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_TXRTS);
uint8_t eir;
// wait for transmission to complete or fail
while (((eir = readReg(EIR)) & (EIR_TXIF | EIR_TXERIF)) == 0);
writeOp(ENC28J60_BIT_FIELD_CLR, ECON1, ECON1_TXRTS);
success = ((eir & EIR_TXERIF) == 0);
if (success)
break; // usual exit of the for(retry) loop
// Errata 13 detection
uint8_t tsv4 = readByte(end + 4);
if (!(tsv4 & 0b00100000)) // is it "late collision" indicated in bit 29 of TSV?
break; // other fail, not the Errata 13 situation
#if ACTLOGLEVEL>=LOG_ERROR
LogObject.uart_send_strln(F("Enc28J60Network::sendPacket(memhandle handle) Errata 13 LATE COLLISION !!"));
#endif
}
return success;
}
uint16_t
Enc28J60Network::setReadPtr(memhandle handle, memaddress position, uint16_t len)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::setReadPtr(memhandle handle, memaddress position, uint16_t len) DEBUG_V3:Function started"));
#endif
memblock *packet = handle == UIP_RECEIVEBUFFERHANDLE ? &receivePkt : &blocks[handle];
memaddress start = handle == UIP_RECEIVEBUFFERHANDLE && packet->begin + position > RXSTOP_INIT ? packet->begin + position-((RXSTOP_INIT + 1)-RXSTART_INIT) : packet->begin + position;
writeRegPair(ERDPTL, start);
if (len > packet->size - position)
len = packet->size - position;
return len;
}
uint16_t
Enc28J60Network::readPacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::readPacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len) DEBUG_V3:Function started"));
#endif
#if defined(ESP8266)
wdt_reset();
#endif
len = setReadPtr(handle, position, len);
readBuffer(len, buffer);
#if ACTLOGLEVEL>=LOG_DEBUG_V2
LogObject.uart_send_str(F("Enc28J60Network::readPacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len) DEBUG_V2: Read bytes:"));
LogObject.uart_send_dec(len);
LogObject.uart_send_str(F(" save to block("));
LogObject.uart_send_dec(handle);
LogObject.uart_send_str(F(") ["));
LogObject.uart_send_hex(position);
LogObject.uart_send_str(F("]: "));
for (uint16_t i=0; i<len; i++)
{
LogObject.uart_send_hex(buffer[i]);
LogObject.uart_send_str(F(" "));
}
LogObject.uart_send_strln(F(""));
#endif
return len;
}
uint16_t
Enc28J60Network::writePacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_str(F("Enc28J60Network::writePacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len) DEBUG_V3:Function started with len:"));
LogObject.uart_send_decln(len);
#endif
#if defined(ESP8266)
wdt_reset();
#endif
memblock *packet = &blocks[handle];
uint16_t start = packet->begin + position;
writeRegPair(EWRPTL, start);
if (len > packet->size - position)
len = packet->size - position;
writeBuffer(len, buffer);
#if ACTLOGLEVEL>=LOG_DEBUG_V2
LogObject.uart_send_str(F("Enc28J60Network::writePacket(memhandle handle, memaddress position, uint8_t* buffer, uint16_t len) DEBUG_V2: Write bytes:"));
LogObject.uart_send_dec(len);
LogObject.uart_send_str(F(" save to block("));
LogObject.uart_send_dec(handle);
LogObject.uart_send_str(F(") ["));
LogObject.uart_send_hex(start);
LogObject.uart_send_str(F("]: "));
for (uint16_t i=0; i<len; i++)
{
LogObject.uart_send_hex(buffer[i]);
LogObject.uart_send_str(F(" "));
}
LogObject.uart_send_strln(F(""));
#endif
return len;
}
void Enc28J60Network::enableBroadcast (bool temporary) {
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::enableBroadcast (bool temporary) DEBUG_V3:Function started"));
#endif
writeRegByte(ERXFCON, readRegByte(ERXFCON) | ERXFCON_BCEN);
if(!temporary)
broadcast_enabled = true;
}
void Enc28J60Network::disableBroadcast (bool temporary) {
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::disableBroadcast (bool temporary) DEBUG_V3:Function started"));
#endif
if(!temporary)
broadcast_enabled = false;
if(!broadcast_enabled)
writeRegByte(ERXFCON, readRegByte(ERXFCON) & ~ERXFCON_BCEN);
}
void Enc28J60Network::enableMulticast (void) {
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::enableMulticast (void) DEBUG_V3:Function started"));
#endif
writeRegByte(ERXFCON, readRegByte(ERXFCON) | ERXFCON_MCEN);
}
void Enc28J60Network::disableMulticast (void) {
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::disableMulticast (void) DEBUG_V3:Function started"));
#endif
writeRegByte(ERXFCON, readRegByte(ERXFCON) & ~ERXFCON_MCEN);
}
uint8_t Enc28J60Network::readRegByte (uint8_t address) {
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::readRegByte (uint8_t address) DEBUG_V3:Function started"));
#endif
setBank(address);
return readOp(ENC28J60_READ_CTRL_REG, address);
}
void Enc28J60Network::writeRegByte (uint8_t address, uint8_t data) {
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::writeRegByte (uint8_t address, uint8_t data) DEBUG_V3:Function started"));
#endif
setBank(address);
writeOp(ENC28J60_WRITE_CTRL_REG, address, data);
}
uint8_t Enc28J60Network::readByte(uint16_t addr)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::readByte(uint16_t addr) DEBUG_V3:Function started"));
#endif
#if defined(ESP8266)
wdt_reset();
#endif
writeRegPair(ERDPTL, addr);
CSACTIVE;
#if ENC28J60_USE_SPILIB
// issue read command
#if defined(ARDUINO)
SPI.transfer(ENC28J60_READ_BUF_MEM);
// read data
uint8_t c = SPI.transfer(0x00);
#endif
#if defined(__MBED__)
_spi.write(ENC28J60_READ_BUF_MEM);
// read data
uint8_t c = _spi.write(0x00);
#endif
CSPASSIVE;
return (c);
#else
// issue read command
SPDR = ENC28J60_READ_BUF_MEM;
waitspi();
// read data
SPDR = 0x00;
waitspi();
CSPASSIVE;
return (SPDR);
#endif
}
void Enc28J60Network::writeByte(uint16_t addr, uint8_t data)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::writeByte(uint16_t addr, uint8_t data) DEBUG_V3:Function started"));
#endif
#if defined(ESP8266)
wdt_reset();
#endif
writeRegPair(EWRPTL, addr);
CSACTIVE;
#if ENC28J60_USE_SPILIB
// issue write command
#if defined(ARDUINO)
SPI.transfer(ENC28J60_WRITE_BUF_MEM);
// write data
SPI.transfer(data);
#endif
#if defined(__MBED__)
_spi.write(ENC28J60_WRITE_BUF_MEM);
// write data
_spi.write(data);
#endif
#else
// issue write command
SPDR = ENC28J60_WRITE_BUF_MEM;
waitspi();
// write data
SPDR = data;
waitspi();
#endif
CSPASSIVE;
}
void
Enc28J60Network::copyPacket(memhandle dest_pkt, memaddress dest_pos, memhandle src_pkt, memaddress src_pos, uint16_t len)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::copyPacket(memhandle dest_pkt, memaddress dest_pos, memhandle src_pkt, memaddress src_pos, uint16_t len) DEBUG_V3:Function started"));
#endif
memblock *dest = &blocks[dest_pkt];
memblock *src = src_pkt == UIP_RECEIVEBUFFERHANDLE ? &receivePkt : &blocks[src_pkt];
memaddress start = src_pkt == UIP_RECEIVEBUFFERHANDLE && src->begin + src_pos > RXSTOP_INIT ? src->begin + src_pos-((RXSTOP_INIT + 1)-RXSTART_INIT) : src->begin + src_pos;
enc28J60_mempool_block_move_callback(dest->begin+dest_pos,start,len);
// setERXRDPT(); let it to freePacket after all packets are saved
}
void
enc28J60_mempool_block_move_callback(memaddress dest, memaddress src, memaddress len)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("enc28J60_mempool_block_move_callback(memaddress dest, memaddress src, memaddress len) DEBUG_V3:Function started"));
#endif
//void
//Enc28J60Network::memblock_mv_cb(uint16_t dest, uint16_t src, uint16_t len)
//{
//as ENC28J60 DMA is unable to copy single bytes:
if (len == 1)
{
Enc28J60Network::writeByte(dest,Enc28J60Network::readByte(src));
}
else
{
// calculate address of last byte
len += src - 1;
/* 1. Appropriately program the EDMAST, EDMAND
and EDMADST register pairs. The EDMAST
registers should point to the first byte to copy
from, the EDMAND registers should point to the
last byte to copy and the EDMADST registers
should point to the first byte in the destination
range. The destination range will always be
linear, never wrapping at any values except from
8191 to 0 (the 8-Kbyte memory boundary).
Extreme care should be taken when
programming the start and end pointers to
prevent a never ending DMA operation which
would overwrite the entire 8-Kbyte buffer.
*/
Enc28J60Network::writeRegPair(EDMASTL, src);
Enc28J60Network::writeRegPair(EDMADSTL, dest);
if ((src <= RXSTOP_INIT)&& (len > RXSTOP_INIT))len -= ((RXSTOP_INIT + 1)-RXSTART_INIT);
Enc28J60Network::writeRegPair(EDMANDL, len);
/*
2. If an interrupt at the end of the copy process is
desired, set EIE.DMAIE and EIE.INTIE and
clear EIR.DMAIF.
3. Verify that ECON1.CSUMEN is clear. */
Enc28J60Network::writeOp(ENC28J60_BIT_FIELD_CLR, ECON1, ECON1_CSUMEN);
/* 4. Start the DMA copy by setting ECON1.DMAST. */
Enc28J60Network::writeOp(ENC28J60_BIT_FIELD_SET, ECON1, ECON1_DMAST);
// wait until runnig DMA is completed
while (Enc28J60Network::readOp(ENC28J60_READ_CTRL_REG, ECON1) & ECON1_DMAST)
{
delay(1);
}
}
}
void
Enc28J60Network::freePacket(void)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::freePacket(void) DEBUG_V3:Function started"));
#endif
setERXRDPT();
}
uint8_t
Enc28J60Network::readOp(uint8_t op, uint8_t address)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::readOp(uint8_t op, uint8_t address) DEBUG_V3:Function started"));
#endif
CSACTIVE;
// issue read command
#if ENC28J60_USE_SPILIB
#if defined(ARDUINO)
SPI.transfer(op | (address & ADDR_MASK));
// read data
if(address & 0x80)
{
// do dummy read if needed (for mac and mii, see datasheet page 29)
SPI.transfer(0x00);
}
uint8_t c = SPI.transfer(0x00);
#endif
#if defined(__MBED__)
_spi.write(op | (address & ADDR_MASK));
// read data
if(address & 0x80)
{
// do dummy read if needed (for mac and mii, see datasheet page 29)
_spi.write(0x00);
}
uint8_t c = _spi.write(0x00);
#endif
// release CS
CSPASSIVE;
return(c);
#else
// issue read command
SPDR = op | (address & ADDR_MASK);
waitspi();
// read data
SPDR = 0x00;
waitspi();
// do dummy read if needed (for mac and mii, see datasheet page 29)
if(address & 0x80)
{
SPDR = 0x00;
waitspi();
}
// release CS
CSPASSIVE;
return(SPDR);
#endif
#if defined(ESP8266)
yield();
#endif
}
void
Enc28J60Network::writeOp(uint8_t op, uint8_t address, uint8_t data)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::writeOp(uint8_t op, uint8_t address, uint8_t data) DEBUG_V3:Function started"));
#endif
CSACTIVE;
// issue write command
#if ENC28J60_USE_SPILIB
#if defined(ARDUINO)
SPI.transfer(op | (address & ADDR_MASK));
// write data
SPI.transfer(data);
#endif
#if defined(__MBED__)
_spi.write(op | (address & ADDR_MASK));
// write data
_spi.write(data);
#endif
#else
// issue write command
SPDR = op | (address & ADDR_MASK);
waitspi();
// write data
SPDR = data;
waitspi();
#endif
CSPASSIVE;
#if defined(ESP8266)
yield();
#endif
}
void
Enc28J60Network::readBuffer(uint16_t len, uint8_t* data)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::readBuffer(uint16_t len, uint8_t* data) DEBUG_V3:Function started"));
#endif
CSACTIVE;
// issue read command
#if ENC28J60_USE_SPILIB
#if defined(ARDUINO)
SPI.transfer(ENC28J60_READ_BUF_MEM);
#endif
#if defined(__MBED__)
_spi.write(ENC28J60_READ_BUF_MEM);
#endif
#else
SPDR = ENC28J60_READ_BUF_MEM;
waitspi();
#endif
while(len)
{
len--;
// read data
#if ENC28J60_USE_SPILIB
#if defined(ARDUINO)
*data = SPI.transfer(0x00);
#endif
#if defined(__MBED__)
*data = _spi.write(0x00);
#endif
#else
SPDR = 0x00;
waitspi();
*data = SPDR;
#endif
data++;
}
//*data='\0';
CSPASSIVE;
}
void
Enc28J60Network::writeBuffer(uint16_t len, uint8_t* data)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::writeBuffer(uint16_t len, uint8_t* data) DEBUG_V3:Function started"));
#endif
CSACTIVE;
// issue write command
#if ENC28J60_USE_SPILIB
#if defined(ARDUINO)
SPI.transfer(ENC28J60_WRITE_BUF_MEM);
#endif
#if defined(__MBED__)
_spi.write(ENC28J60_WRITE_BUF_MEM);
#endif
#else
SPDR = ENC28J60_WRITE_BUF_MEM;
waitspi();
#endif
while(len)
{
len--;
// write data
#if ENC28J60_USE_SPILIB
#if defined(ARDUINO)
SPI.transfer(*data);
#endif
#if defined(__MBED__)
_spi.write(*data);
#endif
data++;
#else
SPDR = *data;
data++;
waitspi();
#endif
}
CSPASSIVE;
}
void
Enc28J60Network::setBank(uint8_t address)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::setBank(uint8_t address) DEBUG_V3:Function started"));
#endif
// set the bank (if needed)
if((address & BANK_MASK) != bank)
{
// set the bank
writeOp(ENC28J60_BIT_FIELD_CLR, ECON1, (ECON1_BSEL1|ECON1_BSEL0));
writeOp(ENC28J60_BIT_FIELD_SET, ECON1, (address & BANK_MASK)>>5);
bank = (address & BANK_MASK);
}
}
uint8_t
Enc28J60Network::readReg(uint8_t address)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::readReg(uint8_t address) DEBUG_V3:Function started"));
#endif
// set the bank
setBank(address);
// do the read
return readOp(ENC28J60_READ_CTRL_REG, address);
}
void
Enc28J60Network::writeReg(uint8_t address, uint8_t data)
{
#if ACTLOGLEVEL>=LOG_DEBUG_V3
LogObject.uart_send_strln(F("Enc28J60Network::writeReg(uint8_t address, uint8_t data) DEBUG_V3:Function started"));
#endif
// set the bank
setBank(address);
// do the write