drivers/misc/mic/cosm/cosm_main.h

   1 /*
   2  * Intel MIC Platform Software Stack (MPSS)
   3  *
   4  * Copyright(c) 2015 Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License, version 2, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13  * General Public License for more details.
  14  *
  15  * The full GNU General Public License is included in this distribution in
  16  * the file called "COPYING".
  17  *
  18  * Intel MIC Coprocessor State Management (COSM) Driver
  19  *
  20  */
  21 #ifndef _COSM_COSM_H_
  22 #define _COSM_COSM_H_
  23
  24 #include <linux/scif.h>
  25 #include "../bus/cosm_bus.h"
  26
  27 #define COSM_HEARTBEAT_SEND_SEC 30
  28 #define SCIF_COSM_LISTEN_PORT  201
  29
  30 /**
  31  * enum COSM msg id's
  32  * @COSM_MSG_SHUTDOWN: host->card trigger shutdown
  33  * @COSM_MSG_SYNC_TIME: host->card send host time to card to sync time
  34  * @COSM_MSG_HEARTBEAT: card->host heartbeat
  35  * @COSM_MSG_SHUTDOWN_STATUS: card->host with shutdown status as payload
  36  */
  37 enum cosm_msg_id {
  38         COSM_MSG_SHUTDOWN,
  39         COSM_MSG_SYNC_TIME,
  40         COSM_MSG_HEARTBEAT,
  41         COSM_MSG_SHUTDOWN_STATUS,
  42 };
  43
  44 struct cosm_msg {
  45         u64 id;
  46         union {
  47                 u64 shutdown_status;
  48                 struct timespec64 timespec;
  49         };
  50 };
  51
  52 extern const char * const cosm_state_string[];
  53 extern const char * const cosm_shutdown_status_string[];
  54
  55 void cosm_sysfs_init(struct cosm_device *cdev);
  56 int cosm_start(struct cosm_device *cdev);
  57 void cosm_stop(struct cosm_device *cdev, bool force);
  58 int cosm_reset(struct cosm_device *cdev);
  59 int cosm_shutdown(struct cosm_device *cdev);
  60 void cosm_set_state(struct cosm_device *cdev, u8 state);
  61 void cosm_set_shutdown_status(struct cosm_device *cdev, u8 status);
  62 void cosm_init_debugfs(void);
  63 void cosm_exit_debugfs(void);
  64 void cosm_create_debug_dir(struct cosm_device *cdev);
  65 void cosm_delete_debug_dir(struct cosm_device *cdev);
  66 int cosm_scif_init(void);
  67 void cosm_scif_exit(void);
  68 void cosm_scif_work(struct work_struct *work);
  69
  70 #endif