S(含AX88796驱动及mdev支持）(3)

(4)、修改ne_probe1函数
增加自定义的网卡MAC地址（这个地址可以自行修改，但是MAC也有一定的规则，最重要的是千万不要把它配置为广播或组播地址，请参考网络的相关书籍）：

static int __init ne_probe1(struct net_device *dev, unsigned long ioaddr)
{
int i;
unsigned char ne_defethaddr[]={0x08,0x08,0x08,0x08,0x12,0x27,0};   //lingd
unsigned char SA_prom[32];
int wordlength = 2;

......
     增加网卡MAC地址的配置语句，屏蔽通过EEPROM配置网卡的语句
......

struct {unsigned char value, offset; } program_seq[] =
{
{E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
{0x48,   EN0_DCFG},    /* Set byte-wide (0x48) access. */
{0x00,   EN0_RCNTLO},  /* Clear the count regs. */
{0x00,   EN0_RCNTHI},
{0x00,   EN0_IMR}, /* Mask completion irq. */
{0xFF,   EN0_ISR},
{E8390_RXOFF, EN0_RXCR},    /* 0x20  Set to monitor */
{E8390_TXOFF, EN0_TXCR},    /* 0x02  and loopback mode. */
{32, EN0_RCNTLO},
{0x00,   EN0_RCNTHI},
{0x00,   EN0_RSARLO},  /* DMA starting at 0x0000. */
{0x00,   EN0_RSARHI},
{E8390_RREAD+E8390_START, E8390_CMD},
};

for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++)
outb_p(program_seq[i].value, ioaddr + program_seq[i].offset);
}

/**********************lingd********************/
{
unsigned char *ep;
ep = (unsigned char * ) &ne_defethaddr[0];
ne_defethaddr[5]++;

for(i=0;i<6;i++) {
SA_prom[i] = ep[i];
}

SA_prom[14] = SA_prom[15]=0x57;
wordlength =2;
}
/**********************lingd********************/
#if 0    //lingd

for(i = 0; i < 32 /*sizeof(SA_prom)*/; i+=2) {
SA_prom[i] = inb(ioaddr + NE_DATAPORT);
SA_prom[i+1] = inb(ioaddr + NE_DATAPORT);
if (SA_prom[i] != SA_prom[i+1])
wordlength = 1;
}

#endif   //lingd

     if (wordlength == 2)
     {
#if 0   //lingd

for (i = 0; i < 16; i++)
SA_prom[i] = SA_prom[i+i];

/* We must set the 8390 for word mode. */
outb_p(DCR_VAL, ioaddr + EN0_DCFG);
start_page = NESM_START_PG;

/*
* Realtek RTL8019AS datasheet says that the PSTOP register
* shouldn't exceed 0x60 in 8-bit mode.
* This chip can be identified by reading the signature from
* the  remote byte count registers (otherwise write-only)...
*/

if ((DCR_VAL & 0x01) == 0 &&         /* 8-bit mode */
     inb(ioaddr + EN0_RCNTLO) == 0x50 &&
     inb(ioaddr + EN0_RCNTHI) == 0x70)
stop_page = 0x60;
else
stop_page = NESM_STOP_PG;

#endif   //lingd

/**********************lingd********************/
outb_p(0x49, ioaddr + EN0_DCFG);
start_page = NESM_START_PG;
stop_page = NESM_STOP_PG;
/**********************lingd********************/
} else {
start_page = NE1SM_START_PG;
stop_page  = NE1SM_STOP_PG;
}

......
屏蔽自定检测中断号的语句(参考 刘淼 的书)：
......

#if 0  //lingd

if (dev->irq < 2)
{
unsigned long cookie = probe_irq_on();
outb_p(0x50, ioaddr + EN0_IMR);  /* Enable one interrupt. */
outb_p(0x00, ioaddr + EN0_RCNTLO);
outb_p(0x00, ioaddr + EN0_RCNTHI);
outb_p(E8390_RREAD+E8390_START, ioaddr); /* Trigger it... */
mdelay(10);        /* wait 10ms for interrupt to propagate */
outb_p(0x00, ioaddr + EN0_IMR);      /* Mask it again. */
dev->irq = probe_irq_off(cookie);
if (ei_debug > 2)
printk(" autoirq is %d\n", dev->irq);
} else if (dev->irq == 2)
/* Fixup for users that don't know that IRQ 2 is really IRQ 9,
or don't know which one to set. */
dev->irq = 9;

#endif   //lingd

if (! dev->irq) {
printk(" failed to detect IRQ line.\n");
ret = -EAGAIN;
goto err_out;
}