drivers/net/ethernet/i825xx/ether1.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/i825xx/ether1.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/i825xx/ether1.c
Extension
.c
Size
27318 bytes
Lines
1087
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: operation-table or driver-model contract
Status
pattern implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

static const struct net_device_ops ether1_netdev_ops = {
	.ndo_open		= ether1_open,
	.ndo_stop		= ether1_close,
	.ndo_start_xmit		= ether1_sendpacket,
	.ndo_set_rx_mode	= ether1_setmulticastlist,
	.ndo_tx_timeout		= ether1_timeout,
	.ndo_validate_addr	= eth_validate_addr,
	.ndo_set_mac_address	= eth_mac_addr,
};

static int
ether1_probe(struct expansion_card *ec, const struct ecard_id *id)
{
	struct net_device *dev;
	u8 addr[ETH_ALEN];
	int i, ret = 0;

	ether1_banner();

	ret = ecard_request_resources(ec);
	if (ret)
		goto out;

	dev = alloc_etherdev(sizeof(struct ether1_priv));
	if (!dev) {
		ret = -ENOMEM;
		goto release;
	}

	SET_NETDEV_DEV(dev, &ec->dev);

	dev->irq = ec->irq;
	priv(dev)->base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
	if (!priv(dev)->base) {
		ret = -ENOMEM;
		goto free;
	}

	if ((priv(dev)->bus_type = ether1_reset(dev)) == 0) {
		ret = -ENODEV;
		goto free;
	}

	for (i = 0; i < 6; i++)
		addr[i] = readb(IDPROM_ADDRESS + (i << 2));
	eth_hw_addr_set(dev, addr);

	if (ether1_init_2(dev)) {
		ret = -ENODEV;
		goto free;
	}

	dev->netdev_ops		= &ether1_netdev_ops;
	dev->watchdog_timeo	= 5 * HZ / 100;

	ret = register_netdev(dev);
	if (ret)
		goto free;

	printk(KERN_INFO "%s: ether1 in slot %d, %pM\n",
		dev->name, ec->slot_no, dev->dev_addr);
    
	ecard_set_drvdata(ec, dev);
	return 0;

 free:
	free_netdev(dev);
 release:
	ecard_release_resources(ec);
 out:
	return ret;
}

static void ether1_remove(struct expansion_card *ec)
{
	struct net_device *dev = ecard_get_drvdata(ec);

	ecard_set_drvdata(ec, NULL);	

	unregister_netdev(dev);
	free_netdev(dev);
	ecard_release_resources(ec);
}

static const struct ecard_id ether1_ids[] = {
	{ MANU_ACORN, PROD_ACORN_ETHER1 },
	{ 0xffff, 0xffff }
};

static struct ecard_driver ether1_driver = {

Annotation

Implementation Notes