xref: /openbmc/linux/net/appletalk/dev.c (revision e868d61272caa648214046a096e5a6bfc068dc8c)
1 /*
2  * Moved here from drivers/net/net_init.c, which is:
3  *	Written 1993,1994,1995 by Donald Becker.
4  */
5 
6 #include <linux/errno.h>
7 #include <linux/module.h>
8 #include <linux/netdevice.h>
9 #include <linux/if_arp.h>
10 #include <linux/if_ltalk.h>
11 
12 static int ltalk_change_mtu(struct net_device *dev, int mtu)
13 {
14 	return -EINVAL;
15 }
16 
17 static int ltalk_mac_addr(struct net_device *dev, void *addr)
18 {
19 	return -EINVAL;
20 }
21 
22 static void ltalk_setup(struct net_device *dev)
23 {
24 	/* Fill in the fields of the device structure with localtalk-generic values. */
25 
26 	dev->change_mtu		= ltalk_change_mtu;
27 	dev->hard_header	= NULL;
28 	dev->rebuild_header 	= NULL;
29 	dev->set_mac_address 	= ltalk_mac_addr;
30 	dev->hard_header_cache	= NULL;
31 	dev->header_cache_update= NULL;
32 
33 	dev->type		= ARPHRD_LOCALTLK;
34 	dev->hard_header_len 	= LTALK_HLEN;
35 	dev->mtu		= LTALK_MTU;
36 	dev->addr_len		= LTALK_ALEN;
37 	dev->tx_queue_len	= 10;
38 
39 	dev->broadcast[0]	= 0xFF;
40 
41 	dev->flags		= IFF_BROADCAST|IFF_MULTICAST|IFF_NOARP;
42 }
43 
44 /**
45  * alloc_ltalkdev - Allocates and sets up an localtalk device
46  * @sizeof_priv: Size of additional driver-private structure to be allocated
47  *	for this localtalk device
48  *
49  * Fill in the fields of the device structure with localtalk-generic
50  * values. Basically does everything except registering the device.
51  *
52  * Constructs a new net device, complete with a private data area of
53  * size @sizeof_priv.  A 32-byte (not bit) alignment is enforced for
54  * this private data area.
55  */
56 
57 struct net_device *alloc_ltalkdev(int sizeof_priv)
58 {
59 	return alloc_netdev(sizeof_priv, "lt%d", ltalk_setup);
60 }
61 EXPORT_SYMBOL(alloc_ltalkdev);
62