static int __init sun3_82586_probe1(struct net_device *dev,int ioaddr)
{
int i, size, retval;
if (!request_region(ioaddr, SUN3_82586_TOTAL_SIZE, DRV_NAME))
return -EBUSY;
/* copy in the ethernet address from the prom */
for(i = 0; i < 6 ; i++)
dev->dev_addr[i] = idprom->id_ethaddr[i];
printk("%s: SUN3 Intel 82586 found at %lx, ",dev->name,dev->base_addr);
/*
* check (or search) IO-Memory, 32K
*/
size = 0x8000;
dev->mem_start = (unsigned long)dvma_malloc_align(0x8000, 0x1000);
dev->mem_end = dev->mem_start + size;
if(size != 0x2000 && size != 0x4000 && size != 0x8000) {
printk("\n%s: Illegal memory size %d. Allowed is 0x2000 or 0x4000 or 0x8000 bytes.\n",dev->name,size);
retval = -ENODEV;
goto out;
}
if(!check586(dev,(char *) dev->mem_start,size)) {
printk("?memcheck, Can't find memory at 0x%lx with size %d!\n",dev->mem_start,size);
retval = -ENODEV;
goto out;
}
((struct priv *)netdev_priv(dev))->memtop =
(char *)dvma_btov(dev->mem_start);
((struct priv *)netdev_priv(dev))->base = (unsigned long) dvma_btov(0);
alloc586(dev);
/* set number of receive-buffs according to memsize */
if(size == 0x2000)
((struct priv *)netdev_priv(dev))->num_recv_buffs =
NUM_RECV_BUFFS_8;
else if(size == 0x4000)
((struct priv *)netdev_priv(dev))->num_recv_buffs =
NUM_RECV_BUFFS_16;
else
((struct priv *)netdev_priv(dev))->num_recv_buffs =
NUM_RECV_BUFFS_32;
printk("Memaddr: 0x%lx, Memsize: %d, IRQ %d\n",dev->mem_start,size, dev->irq);
dev->open = sun3_82586_open;
dev->stop = sun3_82586_close;
dev->get_stats = sun3_82586_get_stats;
dev->tx_timeout = sun3_82586_timeout;
dev->watchdog_timeo = HZ/20;
dev->hard_start_xmit = sun3_82586_send_packet;
dev->set_multicast_list = set_multicast_list;
dev->if_port = 0;
return 0;
out:
release_region(ioaddr, SUN3_82586_TOTAL_SIZE);
return retval;
}
/* clean up after our dma is done */
static int sun3scsi_dma_finish(int write_flag)
{
unsigned short count;
unsigned short fifo;
int ret = 0;
sun3_dma_active = 0;
#if 1
// check to empty the fifo on a read
if(!write_flag) {
int tmo = 20000; /* .2 sec */
while(1) {
if(dregs->csr & CSR_FIFO_EMPTY)
break;
if(--tmo <= 0) {
printk("sun3scsi: fifo failed to empty!\n");
return 1;
}
udelay(10);
}
}
#endif
count = sun3scsi_dma_count(default_instance);
#ifdef OLDDMA
/* if we've finished a read, copy out the data we read */
if(sun3_dma_orig_addr) {
/* check for residual bytes after dma end */
if(count && (NCR5380_read(BUS_AND_STATUS_REG) &
(BASR_PHASE_MATCH | BASR_ACK))) {
printk("scsi%d: sun3_scsi_finish: read overrun baby... ", default_instance->host_no);
printk("basr now %02x\n", NCR5380_read(BUS_AND_STATUS_REG));
ret = count;
}
/* copy in what we dma'd no matter what */
memcpy(sun3_dma_orig_addr, dmabuf, sun3_dma_orig_count);
sun3_dma_orig_addr = NULL;
}
#else
fifo = dregs->fifo_count;
last_residual = fifo;
/* empty bytes from the fifo which didn't make it */
if((!write_flag) && (count - fifo) == 2) {
unsigned short data;
unsigned char *vaddr;
data = dregs->fifo_data;
vaddr = (unsigned char *)dvma_btov(sun3_dma_orig_addr);
vaddr += (sun3_dma_orig_count - fifo);
vaddr[-2] = (data & 0xff00) >> 8;
vaddr[-1] = (data & 0xff);
}
