drivers/staging/mei/interface.h

   1 /*
   2  *
   3  * Intel Management Engine Interface (Intel MEI) Linux driver
   4  * Copyright (c) 2003-2011, Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  */
  16
  17
  18
  19 #ifndef _MEI_INTERFACE_H_
  20 #define _MEI_INTERFACE_H_
  21
  22 #include "mei.h"
  23 #include "mei_dev.h"
  24
  25
  26 #define AMT_WD_DEFAULT_TIMEOUT 120      /* seconds */
  27 #define AMT_WD_MIN_TIMEOUT 120  /* seconds */
  28 #define AMT_WD_MAX_TIMEOUT 65535        /* seconds */
  29
  30 #define MEI_WATCHDOG_DATA_SIZE         16
  31 #define MEI_START_WD_DATA_SIZE         20
  32 #define MEI_WD_PARAMS_SIZE             4
  33
  34
  35 void mei_read_slots(struct mei_device *dev,
  36                      unsigned char *buffer, unsigned long buffer_length);
  37
  38 int mei_write_message(struct mei_device *dev,
  39                              struct mei_msg_hdr *header,
  40                              unsigned char *write_buffer,
  41                              unsigned long write_length);
  42
  43 int mei_host_buffer_is_empty(struct mei_device *dev);
  44
  45 int mei_count_full_read_slots(struct mei_device *dev);
  46
  47 int mei_count_empty_write_slots(struct mei_device *dev);
  48
  49 int mei_flow_ctrl_creds(struct mei_device *dev, struct mei_cl *cl);
  50
  51 int mei_wd_send(struct mei_device *dev);
  52 int mei_wd_stop(struct mei_device *dev, bool preserve);
  53 bool mei_wd_host_init(struct mei_device *dev);
  54 void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout);
  55 /*
  56  * mei_watchdog_register  - Registering watchdog interface
  57  *   once we got connection to the WD Client
  58  * @dev - mei device
  59  */
  60 void mei_watchdog_register(struct mei_device *dev);
  61 /*
  62  * mei_watchdog_unregister  - Uegistering watchdog interface
  63  * @dev - mei device
  64  */
  65 void mei_watchdog_unregister(struct mei_device *dev);
  66
  67 int mei_flow_ctrl_reduce(struct mei_device *dev, struct mei_cl *cl);
  68
  69 int mei_send_flow_control(struct mei_device *dev, struct mei_cl *cl);
  70
  71 int mei_disconnect(struct mei_device *dev, struct mei_cl *cl);
  72 int mei_other_client_is_connecting(struct mei_device *dev, struct mei_cl *cl);
  73 int mei_connect(struct mei_device *dev, struct mei_cl *cl);
  74
  75 #endif /* _MEI_INTERFACE_H_ */