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