LXR linux/include/net/ncsi.h

   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_unregister_dev(struct ncsi_dev *nd);
  35#else /* !CONFIG_NET_NCSI */
  36static inline struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
  37                                        void (*notifier)(struct ncsi_dev *nd))
  38{
  39        return NULL;
  40}
  41
  42static inline int ncsi_start_dev(struct ncsi_dev *nd)
  43{
  44        return -ENOTTY;
  45}
  46
  47static inline void ncsi_unregister_dev(struct ncsi_dev *nd)
  48{
  49}
  50#endif /* CONFIG_NET_NCSI */
  51
  52#endif /* __NET_NCSI_H */
  53