drivers/net/wireless/madwifi/ath_rate/amrr/amrr.h

   1 /*-
   2  * Copyright (c) 2004 INRIA
   3  * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer,
  11         without modification.
  12  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  13  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
  14  *    redistribution must be conditioned upon including a substantially
  15  *    similar Disclaimer requirement for further binary redistribution.
  16  * 3. Neither the names of the above-listed copyright holders nor the names
  17  *    of any contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * Alternatively, this software may be distributed under the terms of the
  21  * GNU General Public License ("GPL") version 2 as published by the Free
  22  * Software Foundation.
  23  *
  24  * NO WARRANTY
  25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  27  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
  28  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  29  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
  30  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  33  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  35  * THE POSSIBILITY OF SUCH DAMAGES.
  36  *
  37  * $Id: amrr.h 2394 2007-05-30 01:41:18Z mtaylor $
  38  */
  39
  40 #ifndef _DEV_ATH_RATE_AMRR_H
  41 #define _DEV_ATH_RATE_AMRR_H
  42
  43 /* per-device state */
  44 struct amrr_softc {
  45         struct ath_ratectrl arc;                /* base state */
  46         struct timer_list timer;        /* periodic timer */
  47 };
  48
  49 /* per-node state */
  50 struct amrr_node {
  51         /* AMRR statistics for this node */
  52         u_int amn_tx_try0_cnt;
  53         u_int amn_tx_try1_cnt;
  54         u_int amn_tx_try2_cnt;
  55         u_int amn_tx_try3_cnt;
  56         u_int amn_tx_failure_cnt;
  57         /* AMRR algorithm state for this node */
  58         u_int amn_success_threshold;
  59         u_int amn_success;
  60         u_int amn_recovery;
  61         /* rate index et al. */
  62         u_int8_t        amn_tx_rix0;    /* series 0 rate index */
  63         u_int8_t        amn_tx_rate0;   /* series 0 h/w rate */
  64         u_int8_t        amn_tx_rate1;   /* series 1 h/w rate */
  65         u_int8_t        amn_tx_rate2;   /* series 2 h/w rate */
  66         u_int8_t        amn_tx_rate3;   /* series 3 h/w rate */
  67         u_int8_t        amn_tx_rate0sp; /* series 0 short preamble h/w rate */
  68         u_int8_t        amn_tx_rate1sp; /* series 1 short preamble h/w rate */
  69         u_int8_t        amn_tx_rate2sp; /* series 2 short preamble h/w rate */
  70         u_int8_t        amn_tx_rate3sp; /* series 3 short preamble h/w rate */
  71         u_int8_t        amn_tx_try0;    /* series 0 try count */
  72         u_int amn_tx_try1;      /* series 1 try count */
  73         u_int amn_tx_try2;      /* series 2 try count */
  74         u_int amn_tx_try3;      /* series 3 try count */
  75 };
  76 #define ATH_NODE_AMRR(an)       ((struct amrr_node *)&an[1])
  77 #endif /* _DEV_ATH_RATE_AMRR_H */