1#ifndef __NET_NCSI_H
 2#define __NET_NCSI_H
 3
 4/*
 5 * The NCSI device states seen from external. More NCSI device states are
 6 * only visible internally (in net/ncsi/internal.h). When the NCSI device
 7 * is registered, it's in ncsi_dev_state_registered state. The state
 8 * ncsi_dev_state_start is used to drive to choose active package and
 9 * channel. After that, its state is changed to ncsi_dev_state_functional.
10 *
11 * The state ncsi_dev_state_stop helps to shut down the currently active
12 * package and channel while ncsi_dev_state_config helps to reconfigure
13 * them.
14 */
15enum {
16	ncsi_dev_state_registered	= 0x0000,
17	ncsi_dev_state_functional	= 0x0100,
18	ncsi_dev_state_probe		= 0x0200,
19	ncsi_dev_state_config		= 0x0300,
20	ncsi_dev_state_suspend		= 0x0400,
21};
22
23struct ncsi_dev {
24	int               state;
25	int		  link_up;
26	struct net_device *dev;
27	void		  (*handler)(struct ncsi_dev *ndev);
28};
29
30#ifdef CONFIG_NET_NCSI
31struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
32				   void (*notifier)(struct ncsi_dev *nd));
33int ncsi_start_dev(struct ncsi_dev *nd);
34void ncsi_stop_dev(struct ncsi_dev *nd);
35void ncsi_unregister_dev(struct ncsi_dev *nd);
36#else /* !CONFIG_NET_NCSI */
37static inline struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
38					void (*notifier)(struct ncsi_dev *nd))
39{
40	return NULL;
41}
42
43static inline int ncsi_start_dev(struct ncsi_dev *nd)
44{
45	return -ENOTTY;
46}
47
48static void ncsi_stop_dev(struct ncsi_dev *nd)
49{
50}
51
52static inline void ncsi_unregister_dev(struct ncsi_dev *nd)
53{
54}
55#endif /* CONFIG_NET_NCSI */
56
57#endif /* __NET_NCSI_H */