drivers/staging/greybus/svc.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Greybus SVC code
   4  *
   5  * Copyright 2015 Google Inc.
   6  * Copyright 2015 Linaro Ltd.
   7  *
   8  * Released under the GPLv2 only.
   9  */
  10
  11 #ifndef __SVC_H
  12 #define __SVC_H
  13
  14 #define GB_SVC_CPORT_FLAG_E2EFC         BIT(0)
  15 #define GB_SVC_CPORT_FLAG_CSD_N         BIT(1)
  16 #define GB_SVC_CPORT_FLAG_CSV_N         BIT(2)
  17
  18 enum gb_svc_state {
  19         GB_SVC_STATE_RESET,
  20         GB_SVC_STATE_PROTOCOL_VERSION,
  21         GB_SVC_STATE_SVC_HELLO,
  22 };
  23
  24 enum gb_svc_watchdog_bite {
  25         GB_SVC_WATCHDOG_BITE_RESET_UNIPRO = 0,
  26         GB_SVC_WATCHDOG_BITE_PANIC_KERNEL,
  27 };
  28
  29 struct gb_svc_watchdog;
  30
  31 struct svc_debugfs_pwrmon_rail {
  32         u8 id;
  33         struct gb_svc *svc;
  34 };
  35
  36 struct gb_svc {
  37         struct device           dev;
  38
  39         struct gb_host_device   *hd;
  40         struct gb_connection    *connection;
  41         enum gb_svc_state       state;
  42         struct ida              device_id_map;
  43         struct workqueue_struct *wq;
  44
  45         u16 endo_id;
  46         u8 ap_intf_id;
  47
  48         u8 protocol_major;
  49         u8 protocol_minor;
  50
  51         struct gb_svc_watchdog  *watchdog;
  52         enum gb_svc_watchdog_bite action;
  53
  54         struct dentry *debugfs_dentry;
  55         struct svc_debugfs_pwrmon_rail *pwrmon_rails;
  56 };
  57 #define to_gb_svc(d) container_of(d, struct gb_svc, dev)
  58
  59 struct gb_svc *gb_svc_create(struct gb_host_device *hd);
  60 int gb_svc_add(struct gb_svc *svc);
  61 void gb_svc_del(struct gb_svc *svc);
  62 void gb_svc_put(struct gb_svc *svc);
  63
  64 int gb_svc_pwrmon_intf_sample_get(struct gb_svc *svc, u8 intf_id,
  65                                   u8 measurement_type, u32 *value);
  66 int gb_svc_intf_device_id(struct gb_svc *svc, u8 intf_id, u8 device_id);
  67 int gb_svc_route_create(struct gb_svc *svc, u8 intf1_id, u8 dev1_id,
  68                                u8 intf2_id, u8 dev2_id);
  69 void gb_svc_route_destroy(struct gb_svc *svc, u8 intf1_id, u8 intf2_id);
  70 int gb_svc_connection_create(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
  71                              u8 intf2_id, u16 cport2_id, u8 cport_flags);
  72 void gb_svc_connection_destroy(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
  73                                u8 intf2_id, u16 cport2_id);
  74 int gb_svc_intf_eject(struct gb_svc *svc, u8 intf_id);
  75 int gb_svc_intf_vsys_set(struct gb_svc *svc, u8 intf_id, bool enable);
  76 int gb_svc_intf_refclk_set(struct gb_svc *svc, u8 intf_id, bool enable);
  77 int gb_svc_intf_unipro_set(struct gb_svc *svc, u8 intf_id, bool enable);
  78 int gb_svc_intf_activate(struct gb_svc *svc, u8 intf_id, u8 *intf_type);
  79 int gb_svc_intf_resume(struct gb_svc *svc, u8 intf_id);
  80
  81 int gb_svc_dme_peer_get(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
  82                         u32 *value);
  83 int gb_svc_dme_peer_set(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
  84                         u32 value);
  85 int gb_svc_intf_set_power_mode(struct gb_svc *svc, u8 intf_id, u8 hs_series,
  86                                u8 tx_mode, u8 tx_gear, u8 tx_nlanes,
  87                                u8 tx_amplitude, u8 tx_hs_equalizer,
  88                                u8 rx_mode, u8 rx_gear, u8 rx_nlanes,
  89                                u8 flags, u32 quirks,
  90                                struct gb_svc_l2_timer_cfg *local,
  91                                struct gb_svc_l2_timer_cfg *remote);
  92 int gb_svc_intf_set_power_mode_hibernate(struct gb_svc *svc, u8 intf_id);
  93 int gb_svc_ping(struct gb_svc *svc);
  94 int gb_svc_watchdog_create(struct gb_svc *svc);
  95 void gb_svc_watchdog_destroy(struct gb_svc *svc);
  96 bool gb_svc_watchdog_enabled(struct gb_svc *svc);
  97 int gb_svc_watchdog_enable(struct gb_svc *svc);
  98 int gb_svc_watchdog_disable(struct gb_svc *svc);
  99
 100 int gb_svc_protocol_init(void);
 101 void gb_svc_protocol_exit(void);
 102
 103 #endif /* __SVC_H */