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URL https://opencores.org/ocsvn/minsoc/minsoc/trunk

Subversion Repositories minsoc

Compare Revisions

  • This comparison shows the changes necessary to convert path 
    /minsoc/trunk/sw/eth
    from Rev 2 to Rev 36
    ↔ Reverse comparison
  •

Rev 2 → Rev 36

/eth.c
1,202 → 1,32
#include "../support/support.h"
#include "../support/board.h"
#include "../support/uart.h"
 
#include "../support/spr_defs.h"
 
#include "eth.h"
#include "../drivers/uart.h"
#include "../drivers/eth.h"
 
void uart_print_str(char *);
void uart_print_long(unsigned long);
 
// Dummy or32 except vectors
void buserr_except(){}
void dpf_except(){}
void ipf_except(){}
void lpint_except(){}
void align_except(){}
void illegal_except(){}
/*void hpint_except(){
extern int eth_rx_len;
extern int eth_rx_done, eth_tx_done;
extern unsigned char * eth_rx_data;
extern unsigned char * eth_tx_data;
 
}*/
void dtlbmiss_except(){}
void itlbmiss_except(){}
void range_except(){}
void syscall_except(){}
void res1_except(){}
void trap_except(){}
void res2_except(){}
 
 
void uart_interrupt()
{
char lala;
unsigned char interrupt_id;
interrupt_id = REG8(UART_BASE + UART_IIR);
if ( interrupt_id & UART_IIR_RDI )
{
lala = uart_getc();
uart_putc(lala+1);
}
 
}
 
 
void uart_print_str(char *p)
{
while(*p != 0) {
uart_putc(*p);
p++;
}
}
 
void uart_print_long(unsigned long ul)
{
int i;
char c;
 
uart_print_str("0x");
for(i=0; i<8; i++) {
 
c = (char) (ul>>((7-i)*4)) & 0xf;
if(c >= 0x0 && c<=0x9)
c += '0';
else
c += 'a' - 10;
uart_putc(c);
}
 
}
 
void uart_print_short(unsigned long ul)
{
int i;
char c;
char flag=0;
 
uart_print_str("0x");
for(i=0; i<8; i++) {
 
c = (char) (ul>>((7-i)*4)) & 0xf;
if(c >= 0x0 && c<=0x9)
c += '0';
else
c += 'a' - 10;
if ((c != '0') || (i==7))
flag=1;
if(flag)
uart_putc(c);
}
 
}
 
int tx_done;
int rx_done;
int rx_len;
char tx_data[1536]; //max length
char rx_data[1536];
 
void eth_init()
{
//TXEN & RXEN = 1; PAD & CRC = 1; FULLD = 1
REG32(ETH_BASE + ETH_MODER) = ETH_TXEN | ETH_RXEN | ETH_PAD | ETH_CRCEN | ETH_FULLD;
//PHY Address = 0x001
REG32(ETH_BASE + ETH_MIIADDRESS) = 0x00000001;
 
//enable all interrupts
REG32(ETH_BASE + ETH_INT_MASK) = ETH_RXC | ETH_TXC | ETH_BUSY | ETH_RXE | ETH_RXB | ETH_TXE | ETH_TXB;
 
//set MAC ADDRESS
REG32(ETH_BASE + ETH_MAC_ADDR1) = OWN_MAC_ADDRESS >> 32; //low word = mac address high word
REG32(ETH_BASE + ETH_MAC_ADDR0) = OWN_MAC_ADDRESS; //mac address rest
 
//configure TXBD0
REG32(ETH_BASE + ETH_TXBD0H) = tx_data; //address used for tx_data
REG32(ETH_BASE + ETH_TXBD0L) = TX_READY; //length = 0 | PAD & CRC = 1 | IRQ & WR = 1
 
//configure RXBD0
REG32(ETH_BASE + ETH_RXBD0H) = rx_data; //address used for tx_data
REG32(ETH_BASE + ETH_RXBD0L) = RX_READY; //len = 0 | IRQ & WR = 1 | EMPTY = 1
 
//set txdata
tx_data[0] = BROADCAST_ADDRESS >> 40;
tx_data[1] = BROADCAST_ADDRESS >> 32;
tx_data[2] = BROADCAST_ADDRESS >> 24;
tx_data[3] = BROADCAST_ADDRESS >> 16;
tx_data[4] = BROADCAST_ADDRESS >> 8;
tx_data[5] = BROADCAST_ADDRESS;
 
tx_data[6] = OWN_MAC_ADDRESS >> 40;
tx_data[7] = OWN_MAC_ADDRESS >> 32;
tx_data[8] = OWN_MAC_ADDRESS >> 24;
tx_data[9] = OWN_MAC_ADDRESS >> 16;
tx_data[10] = OWN_MAC_ADDRESS >> 8;
tx_data[11] = OWN_MAC_ADDRESS;
 
//erase interrupts
REG32(ETH_BASE + ETH_INT_SOURCE) = ETH_RXC | ETH_TXC | ETH_BUSY | ETH_RXE | ETH_RXB | ETH_TXE | ETH_TXB;
 
tx_done = 1;
rx_done = 0;
rx_len = 0;
}
 
void eth_send(int length)
{
if (!tx_done)
return;
 
tx_done = 0;
tx_data[12] = length >> 8;
tx_data[13] = length;
 
REG32(ETH_BASE + ETH_TXBD0L) = (( 0x0000FFFF & ( length + HDR_LEN ) ) << 16) | BD_SND;
}
 
void eth_receive()
{
int i;
uart_print_str("Length: \n");
uart_print_long(rx_len - HDR_LEN - CRC_LEN);
uart_print_long(eth_rx_len);
uart_print_str("\n");
uart_print_str("Data: \n");
for ( i = 0; i < rx_len - HDR_LEN - CRC_LEN; i++ )
for ( i = 0; i < eth_rx_len; i++ )
{
uart_print_short(rx_data[i+HDR_LEN]);
// uart_print_str("\n");
uart_print_short(eth_rx_data[i]);
uart_print_str("\n");
}
 
rx_done = 0;
rx_len = 0;
eth_recv_ack();
}
 
void eth_interrupt()
{
unsigned long source = REG32(ETH_BASE + ETH_INT_SOURCE);
switch (source)
{
case ETH_TXB:
tx_done = 1;
//erase interrupt
REG32(ETH_BASE + ETH_INT_SOURCE) |= ETH_TXB;
break;
 
case ETH_RXB:
rx_done = 1;
//erase interrupt
REG32(ETH_BASE + ETH_INT_SOURCE) |= ETH_RXB;
//accept further data (reset RXBD to empty)
rx_len = (REG32(ETH_BASE + ETH_RXBD0L) >> 16);
REG32(ETH_BASE + ETH_RXBD0L) = RX_READY; //len = 0 | IRQ & WR = 1 | EMPTY = 1
break;
 
default:
break;
}
}
 
int main()
{
unsigned long lalala;
203,6 → 33,7
uart_init();
 
int_init();
eth_init();
int_add(UART_IRQ, &uart_interrupt);
int_add(ETH_IRQ, &eth_interrupt);
210,18 → 41,16
we don't link C library. */
uart_print_str("Hello World.\n\r");
 
eth_init();
eth_tx_data[0] = 0xFF;
eth_tx_data[1] = 0x2B;
eth_tx_data[2] = 0x40;
eth_tx_data[3] = 0x50;
 
tx_data[14] = 0xFF;
tx_data[15] = 0x2B;
tx_data[16] = 0x40;
tx_data[17] = 0x50;
 
eth_send(4);
 
while(1)
{
if (rx_done)
if (eth_rx_done)
{
eth_receive();
}
/eth.h
80,8 → 80,8
#define ETH_TXBD_CS 0x00000001
 
//user defines
#define OWN_MAC_ADDRESS 0x554734228892
#define BROADCAST_ADDRESS 0xFFFFFFFFFFFF
#define OWN_MAC_ADDRESS 0x554734228892ULL
#define BROADCAST_ADDRESS 0xFFFFFFFFFFFFULL
 
#define HDR_LEN 14
#define CRC_LEN 4
/Makefile
1,10 → 1,10
include ../support/Makefile.inc
cases = eth-nocache eth-icdc
common = ../support/libsupport.a ../support/except.o
drivers = ../drivers/libdrivers.a
 
all: $(cases)
 
eth-nocache: eth.o ../support/reset-nocache.o $(common)
eth-nocache: eth.o ../support/reset-nocache.o $(common) $(drivers)
$(OR32_TOOL_PREFIX)-gcc $(GCC_OPT) $(GCC_LIB_OPTS) -T ../support/orp.ld $? -o $@.or32
$(OR32_TOOL_PREFIX)-objcopy -O binary $@.or32 $@.bin
../utils/bin2hex $@.bin 1 -size_word > $@$(FLASH_MEM_HEX_FILE_SUFFIX).hex
11,8 → 11,8
../utils/bin2vmem $@.bin > $@.vmem
 
 
eth-icdc: eth.o ../support/reset-icdc.o
$(OR32_TOOL_PREFIX)-gcc $(GCC_OPT) $(GCC_LIB_OPTS) -T ../support/orp.ld $? -o $@.or32 $(common)
eth-icdc: eth.o ../support/reset-icdc.o $(common) $(drivers)
$(OR32_TOOL_PREFIX)-gcc $(GCC_OPT) $(GCC_LIB_OPTS) -T ../support/orp.ld $? -o $@.or32
$(OR32_TOOL_PREFIX)-objcopy -O binary $@.or32 $@.bin
../utils/bin2hex $@.bin 1 -size_word > $@$(FLASH_MEM_HEX_FILE_SUFFIX).hex
../utils/bin2vmem $@.bin > $@.vmem
21,3 → 21,4
eth.o: eth.c
$(OR32_TOOL_PREFIX)-gcc $(GCC_OPT) $? -c -o $@
 
include ../support/Makefile.inc

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