LXR linux/drivers/misc/mic/cosm/cosm

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Intel MIC Platform Software Stack (MPSS)
   4 *
   5 * Copyright(c) 2015 Intel Corporation.
   6 *
   7 * Intel MIC Coprocessor State Management (COSM) Driver
   8 */
   9#ifndef _COSM_COSM_H_
  10#define _COSM_COSM_H_
  11
  12#include <linux/scif.h>
  13#include "../bus/cosm_bus.h"
  14
  15#define COSM_HEARTBEAT_SEND_SEC 30
  16#define SCIF_COSM_LISTEN_PORT  201
  17
  18/**
  19 * enum COSM msg id's
  20 * @COSM_MSG_SHUTDOWN: host->card trigger shutdown
  21 * @COSM_MSG_SYNC_TIME: host->card send host time to card to sync time
  22 * @COSM_MSG_HEARTBEAT: card->host heartbeat
  23 * @COSM_MSG_SHUTDOWN_STATUS: card->host with shutdown status as payload
  24 */
  25enum cosm_msg_id {
  26        COSM_MSG_SHUTDOWN,
  27        COSM_MSG_SYNC_TIME,
  28        COSM_MSG_HEARTBEAT,
  29        COSM_MSG_SHUTDOWN_STATUS,
  30};
  31
  32struct cosm_msg {
  33        u64 id;
  34        union {
  35                u64 shutdown_status;
  36                struct {
  37                        u64 tv_sec;
  38                        u64 tv_nsec;
  39                } timespec;
  40        };
  41};
  42
  43extern const char * const cosm_state_string[];
  44extern const char * const cosm_shutdown_status_string[];
  45
  46void cosm_sysfs_init(struct cosm_device *cdev);
  47int cosm_start(struct cosm_device *cdev);
  48void cosm_stop(struct cosm_device *cdev, bool force);
  49int cosm_reset(struct cosm_device *cdev);
  50int cosm_shutdown(struct cosm_device *cdev);
  51void cosm_set_state(struct cosm_device *cdev, u8 state);
  52void cosm_set_shutdown_status(struct cosm_device *cdev, u8 status);
  53void cosm_init_debugfs(void);
  54void cosm_exit_debugfs(void);
  55void cosm_create_debug_dir(struct cosm_device *cdev);
  56void cosm_delete_debug_dir(struct cosm_device *cdev);
  57int cosm_scif_init(void);
  58void cosm_scif_exit(void);
  59void cosm_scif_work(struct work_struct *work);
  60
  61#endif
  62