207 lines
6.1 KiB
C
207 lines
6.1 KiB
C
/******************************************************************************
|
|
*
|
|
* Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of version 2 of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
|
|
*
|
|
* The full GNU General Public License is included in this distribution in the
|
|
* file called LICENSE.
|
|
*
|
|
* Contact Information:
|
|
* James P. Ketrenos <ipw2100-admin@linux.intel.com>
|
|
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#ifndef __iwl_3945_rs_h__
|
|
#define __iwl_3945_rs_h__
|
|
|
|
struct iwl3945_rate_info {
|
|
u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
|
|
u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
|
|
u8 prev_ieee; /* previous rate in IEEE speeds */
|
|
u8 next_ieee; /* next rate in IEEE speeds */
|
|
u8 prev_rs; /* previous rate used in rs algo */
|
|
u8 next_rs; /* next rate used in rs algo */
|
|
u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
|
|
u8 next_rs_tgg; /* next rate used in TGG rs algo */
|
|
u8 table_rs_index; /* index in rate scale table cmd */
|
|
u8 prev_table_rs; /* prev in rate table cmd */
|
|
};
|
|
|
|
/*
|
|
* These serve as indexes into
|
|
* struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT];
|
|
*/
|
|
enum {
|
|
IWL_RATE_1M_INDEX = 0,
|
|
IWL_RATE_2M_INDEX,
|
|
IWL_RATE_5M_INDEX,
|
|
IWL_RATE_11M_INDEX,
|
|
IWL_RATE_6M_INDEX,
|
|
IWL_RATE_9M_INDEX,
|
|
IWL_RATE_12M_INDEX,
|
|
IWL_RATE_18M_INDEX,
|
|
IWL_RATE_24M_INDEX,
|
|
IWL_RATE_36M_INDEX,
|
|
IWL_RATE_48M_INDEX,
|
|
IWL_RATE_54M_INDEX,
|
|
IWL_RATE_COUNT,
|
|
IWL_RATE_INVM_INDEX,
|
|
IWL_RATE_INVALID = IWL_RATE_INVM_INDEX
|
|
};
|
|
|
|
enum {
|
|
IWL_RATE_6M_INDEX_TABLE = 0,
|
|
IWL_RATE_9M_INDEX_TABLE,
|
|
IWL_RATE_12M_INDEX_TABLE,
|
|
IWL_RATE_18M_INDEX_TABLE,
|
|
IWL_RATE_24M_INDEX_TABLE,
|
|
IWL_RATE_36M_INDEX_TABLE,
|
|
IWL_RATE_48M_INDEX_TABLE,
|
|
IWL_RATE_54M_INDEX_TABLE,
|
|
IWL_RATE_1M_INDEX_TABLE,
|
|
IWL_RATE_2M_INDEX_TABLE,
|
|
IWL_RATE_5M_INDEX_TABLE,
|
|
IWL_RATE_11M_INDEX_TABLE,
|
|
IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX,
|
|
};
|
|
|
|
enum {
|
|
IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
|
|
IWL_LAST_OFDM_RATE = IWL_RATE_54M_INDEX,
|
|
IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
|
|
IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
|
|
};
|
|
|
|
/* #define vs. enum to keep from defaulting to 'large integer' */
|
|
#define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX)
|
|
#define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX)
|
|
#define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX)
|
|
#define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX)
|
|
#define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX)
|
|
#define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX)
|
|
#define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX)
|
|
#define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX)
|
|
#define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX)
|
|
#define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX)
|
|
#define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX)
|
|
#define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX)
|
|
|
|
/* 3945 uCode API values for (legacy) bit rates, both OFDM and CCK */
|
|
enum {
|
|
IWL_RATE_6M_PLCP = 13,
|
|
IWL_RATE_9M_PLCP = 15,
|
|
IWL_RATE_12M_PLCP = 5,
|
|
IWL_RATE_18M_PLCP = 7,
|
|
IWL_RATE_24M_PLCP = 9,
|
|
IWL_RATE_36M_PLCP = 11,
|
|
IWL_RATE_48M_PLCP = 1,
|
|
IWL_RATE_54M_PLCP = 3,
|
|
IWL_RATE_1M_PLCP = 10,
|
|
IWL_RATE_2M_PLCP = 20,
|
|
IWL_RATE_5M_PLCP = 55,
|
|
IWL_RATE_11M_PLCP = 110,
|
|
};
|
|
|
|
/* MAC header values for bit rates */
|
|
enum {
|
|
IWL_RATE_6M_IEEE = 12,
|
|
IWL_RATE_9M_IEEE = 18,
|
|
IWL_RATE_12M_IEEE = 24,
|
|
IWL_RATE_18M_IEEE = 36,
|
|
IWL_RATE_24M_IEEE = 48,
|
|
IWL_RATE_36M_IEEE = 72,
|
|
IWL_RATE_48M_IEEE = 96,
|
|
IWL_RATE_54M_IEEE = 108,
|
|
IWL_RATE_1M_IEEE = 2,
|
|
IWL_RATE_2M_IEEE = 4,
|
|
IWL_RATE_5M_IEEE = 11,
|
|
IWL_RATE_11M_IEEE = 22,
|
|
};
|
|
|
|
#define IWL_CCK_BASIC_RATES_MASK \
|
|
(IWL_RATE_1M_MASK | \
|
|
IWL_RATE_2M_MASK)
|
|
|
|
#define IWL_CCK_RATES_MASK \
|
|
(IWL_BASIC_RATES_MASK | \
|
|
IWL_RATE_5M_MASK | \
|
|
IWL_RATE_11M_MASK)
|
|
|
|
#define IWL_OFDM_BASIC_RATES_MASK \
|
|
(IWL_RATE_6M_MASK | \
|
|
IWL_RATE_12M_MASK | \
|
|
IWL_RATE_24M_MASK)
|
|
|
|
#define IWL_OFDM_RATES_MASK \
|
|
(IWL_OFDM_BASIC_RATES_MASK | \
|
|
IWL_RATE_9M_MASK | \
|
|
IWL_RATE_18M_MASK | \
|
|
IWL_RATE_36M_MASK | \
|
|
IWL_RATE_48M_MASK | \
|
|
IWL_RATE_54M_MASK)
|
|
|
|
#define IWL_BASIC_RATES_MASK \
|
|
(IWL_OFDM_BASIC_RATES_MASK | \
|
|
IWL_CCK_BASIC_RATES_MASK)
|
|
|
|
#define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1)
|
|
|
|
#define IWL_INV_TPT -1
|
|
|
|
#define IWL_MIN_RSSI_VAL -100
|
|
#define IWL_MAX_RSSI_VAL 0
|
|
|
|
extern const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT];
|
|
|
|
static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index)
|
|
{
|
|
u8 rate = iwl3945_rates[rate_index].prev_ieee;
|
|
|
|
if (rate == IWL_RATE_INVALID)
|
|
rate = rate_index;
|
|
return rate;
|
|
}
|
|
|
|
/**
|
|
* iwl3945_rate_scale_init - Initialize the rate scale table based on assoc info
|
|
*
|
|
* The specific throughput table used is based on the type of network
|
|
* the associated with, including A, B, G, and G w/ TGG protection
|
|
*/
|
|
extern void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
|
|
|
|
/**
|
|
* iwl3945_rate_control_register - Register the rate control algorithm callbacks
|
|
*
|
|
* Since the rate control algorithm is hardware specific, there is no need
|
|
* or reason to place it as a stand alone module. The driver can call
|
|
* iwl3945_rate_control_register in order to register the rate control callbacks
|
|
* with the mac80211 subsystem. This should be performed prior to calling
|
|
* ieee80211_register_hw
|
|
*
|
|
*/
|
|
extern int iwl3945_rate_control_register(void);
|
|
|
|
/**
|
|
* iwl3945_rate_control_unregister - Unregister the rate control callbacks
|
|
*
|
|
* This should be called after calling ieee80211_unregister_hw, but before
|
|
* the driver is unloaded.
|
|
*/
|
|
extern void iwl3945_rate_control_unregister(void);
|
|
|
|
#endif
|