text: /*
   * Greybus SVC code
   *
   * Copyright 2015 Google Inc.
   * Copyright 2015 Linaro Ltd.
   *
   * Released under the GPLv2 only.
   */
  
  #ifndef __SVC_H
  #define __SVC_H
  
  #define GB_SVC_CPORT_FLAG_E2EFC		BIT(0)
  #define GB_SVC_CPORT_FLAG_CSD_N		BIT(1)
  #define GB_SVC_CPORT_FLAG_CSV_N		BIT(2)
  
  enum gb_svc_state {
  	GB_SVC_STATE_RESET,
  	GB_SVC_STATE_PROTOCOL_VERSION,
  	GB_SVC_STATE_SVC_HELLO,
  };
  
  enum gb_svc_watchdog_bite {
  	GB_SVC_WATCHDOG_BITE_RESET_UNIPRO = 0,
  	GB_SVC_WATCHDOG_BITE_PANIC_KERNEL,
  };
  
  struct gb_svc_watchdog;
  
  struct svc_debugfs_pwrmon_rail {
  	u8 id;
  	struct gb_svc *svc;
  };
  
  struct gb_svc {
  	struct device		dev;
  
  	struct gb_host_device	*hd;
  	struct gb_connection	*connection;
  	enum gb_svc_state	state;
  	struct ida		device_id_map;
  	struct workqueue_struct	*wq;
  
  	u16 endo_id;
  	u8 ap_intf_id;
  
  	u8 protocol_major;
  	u8 protocol_minor;
  
  	struct gb_svc_watchdog	*watchdog;
  	enum gb_svc_watchdog_bite action;
  
  	struct dentry *debugfs_dentry;
  	struct svc_debugfs_pwrmon_rail *pwrmon_rails;
  };
  #define to_gb_svc(d) container_of(d, struct gb_svc, dev)
  
  struct gb_svc *gb_svc_create(struct gb_host_device *hd);
  int gb_svc_add(struct gb_svc *svc);
  void gb_svc_del(struct gb_svc *svc);
  void gb_svc_put(struct gb_svc *svc);
  
  int gb_svc_pwrmon_intf_sample_get(struct gb_svc *svc, u8 intf_id,
  				  u8 measurement_type, u32 *value);
  int gb_svc_intf_device_id(struct gb_svc *svc, u8 intf_id, u8 device_id);
  int gb_svc_route_create(struct gb_svc *svc, u8 intf1_id, u8 dev1_id,
  			       u8 intf2_id, u8 dev2_id);
  void gb_svc_route_destroy(struct gb_svc *svc, u8 intf1_id, u8 intf2_id);
  int gb_svc_connection_create(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
  			     u8 intf2_id, u16 cport2_id, u8 cport_flags);
  void gb_svc_connection_destroy(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
  			       u8 intf2_id, u16 cport2_id);
  int gb_svc_intf_eject(struct gb_svc *svc, u8 intf_id);
  int gb_svc_intf_vsys_set(struct gb_svc *svc, u8 intf_id, bool enable);
  int gb_svc_intf_refclk_set(struct gb_svc *svc, u8 intf_id, bool enable);
  int gb_svc_intf_unipro_set(struct gb_svc *svc, u8 intf_id, bool enable);
  int gb_svc_intf_activate(struct gb_svc *svc, u8 intf_id, u8 *intf_type);
  int gb_svc_intf_resume(struct gb_svc *svc, u8 intf_id);
  
  int gb_svc_dme_peer_get(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
  			u32 *value);
  int gb_svc_dme_peer_set(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
  			u32 value);
  int gb_svc_intf_set_power_mode(struct gb_svc *svc, u8 intf_id, u8 hs_series,
  			       u8 tx_mode, u8 tx_gear, u8 tx_nlanes,
  			       u8 tx_amplitude, u8 tx_hs_equalizer,
  			       u8 rx_mode, u8 rx_gear, u8 rx_nlanes,
  			       u8 flags, u32 quirks,
  			       struct gb_svc_l2_timer_cfg *local,
  			       struct gb_svc_l2_timer_cfg *remote);
  int gb_svc_intf_set_power_mode_hibernate(struct gb_svc *svc, u8 intf_id);
  int gb_svc_ping(struct gb_svc *svc);
  int gb_svc_watchdog_create(struct gb_svc *svc);
  void gb_svc_watchdog_destroy(struct gb_svc *svc);
  bool gb_svc_watchdog_enabled(struct gb_svc *svc);
  int gb_svc_watchdog_enable(struct gb_svc *svc);
  int gb_svc_watchdog_disable(struct gb_svc *svc);
  int gb_svc_timesync_enable(struct gb_svc *svc, u8 count, u64 frame_time,
  			   u32 strobe_delay, u32 refclk);
  int gb_svc_timesync_disable(struct gb_svc *svc);
  int gb_svc_timesync_authoritative(struct gb_svc *svc, u64 *frame_time);
  int gb_svc_timesync_ping(struct gb_svc *svc, u64 *frame_time);
  int gb_svc_timesync_wake_pins_acquire(struct gb_svc *svc, u32 strobe_mask);
  int gb_svc_timesync_wake_pins_release(struct gb_svc *svc);
  
  int gb_svc_protocol_init(void);
  void gb_svc_protocol_exit(void);
  
  #endif /* __SVC_H */
  