| Line 56... |
Line 56... |
void oeth_interrupt(void);
|
void oeth_interrupt(void);
|
static void oeth_rx(void);
|
static void oeth_rx(void);
|
static void oeth_tx(void);
|
static void oeth_tx(void);
|
|
|
/* Let the ethernet packets use a space beginning here for buffering */
|
/* Let the ethernet packets use a space beginning here for buffering */
|
#define ETH_BUFF_BASE 0x01000000
|
#define ETH_BUFF_BASE 0x200000;
|
|
|
#define RXBUFF_PREALLOC 1
|
#define RXBUFF_PREALLOC 1
|
#define TXBUFF_PREALLOC 1
|
#define TXBUFF_PREALLOC 1
|
//#undef RXBUFF_PREALLOC
|
//#undef RXBUFF_PREALLOC
|
//#undef TXBUFF_PREALLOC
|
//#undef TXBUFF_PREALLOC
|
| Line 328... |
Line 328... |
if (length <= ETH_ZLEN)
|
if (length <= ETH_ZLEN)
|
tx_bd->len_status |= OETH_TX_BD_PAD;
|
tx_bd->len_status |= OETH_TX_BD_PAD;
|
else
|
else
|
tx_bd->len_status &= ~OETH_TX_BD_PAD;
|
tx_bd->len_status &= ~OETH_TX_BD_PAD;
|
|
|
#ifdef _ETH_RXTX_DATA_H_
|
|
// Set the address pointer to the place
|
|
// in memory where the data is and transmit from there
|
|
|
|
tx_bd->addr = (char*) &tx_data_array[tx_data_pointer&~(0x3)];
|
|
|
|
tx_data_pointer += length;
|
|
if (tx_data_pointer > (255*1024))
|
|
tx_data_pointer = 0;
|
|
|
|
|
|
#else
|
|
if (data){
|
if (data){
|
//Copy the data into the transmit buffer, byte at a time
|
//Copy the data into the transmit buffer, byte at a time
|
char* data_p = (char*) data;
|
char* data_p = (char*) data;
|
char* data_b = (char*) tx_bd->addr;
|
char* data_b = (char*) tx_bd->addr;
|
for(i=0;i<length;i++)
|
for(i=0;i<length;i++)
|
{
|
{
|
data_b[i] = data_p[i];
|
data_b[i] = data_p[i];
|
}
|
}
|
}
|
}
|
#endif
|
|
|
|
/* Set the length of the packet's data in the buffer descriptor */
|
/* Set the length of the packet's data in the buffer descriptor */
|
tx_bd->len_status = (tx_bd->len_status & 0x0000ffff) |
|
tx_bd->len_status = (tx_bd->len_status & 0x0000ffff) |
|
((length&0xffff) << 16);
|
((length&0xffff) << 16);
|
|
|
| Line 532... |
Line 519... |
tx_bd = (struct oeth_bd*) &tx_bd[next_tx_buf_num];
|
tx_bd = (struct oeth_bd*) &tx_bd[next_tx_buf_num];
|
|
|
// If it's in use - wait
|
// If it's in use - wait
|
while ((tx_bd->len_status & OETH_TX_BD_IRQ));
|
while ((tx_bd->len_status & OETH_TX_BD_IRQ));
|
|
|
#ifndef _ETH_RXTX_DATA_H_
|
|
|
|
// Use rand() function to generate data for transmission
|
// Use rand() function to generate data for transmission
|
// Assumption: ethernet buffer descriptors are 4byte aligned
|
// Assumption: ethernet buffer descriptors are 4byte aligned
|
char* data_b = (char*) tx_bd->addr;
|
char* data_b = (char*) tx_bd->addr;
|
// We will fill with words until there' less than a word to go
|
// We will fill with words until there' less than a word to go
|
int words_to_fill = size/ sizeof(unsigned int);
|
int words_to_fill = size/ sizeof(unsigned int);
|
| Line 553... |
Line 538... |
|
|
for(i=0;i<leftover_size;i++)
|
for(i=0;i<leftover_size;i++)
|
{
|
{
|
data_b[i] = rand()&0xff;
|
data_b[i] = rand()&0xff;
|
}
|
}
|
#endif
|
|
|
|
tx_packet((void*)0, size);
|
tx_packet((void*)0, size);
|
}
|
}
|
|
|
int
|
int
|
main ()
|
main ()
|
{
|
{
|
int i;
|
int i;
|
|
|
#ifdef _ETH_RXTX_DATA_H_
|
|
tx_data_pointer = 0;
|
|
#endif
|
|
|
|
/* Initialise handler vector */
|
/* Initialise handler vector */
|
int_init();
|
int_init();
|
|
|
/* Install ethernet interrupt handler, it is enabled here too */
|
/* Install ethernet interrupt handler, it is enabled here too */
|
int_add(ETH0_IRQ, oeth_interrupt, 0);
|
int_add(ETH0_IRQ, oeth_interrupt, 0);
|
