| 1 |
62 |
marcus.erl |
/******************************************************************************
|
| 2 |
|
|
*
|
| 3 |
|
|
* Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
|
| 4 |
|
|
*
|
| 5 |
|
|
* This program is free software; you can redistribute it and/or modify it
|
| 6 |
|
|
* under the terms of version 2 of the GNU General Public License as
|
| 7 |
|
|
* published by the Free Software Foundation.
|
| 8 |
|
|
*
|
| 9 |
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
| 10 |
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
| 11 |
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
| 12 |
|
|
* more details.
|
| 13 |
|
|
*
|
| 14 |
|
|
* You should have received a copy of the GNU General Public License along with
|
| 15 |
|
|
* this program; if not, write to the Free Software Foundation, Inc.,
|
| 16 |
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
|
| 17 |
|
|
*
|
| 18 |
|
|
* The full GNU General Public License is included in this distribution in the
|
| 19 |
|
|
* file called LICENSE.
|
| 20 |
|
|
*
|
| 21 |
|
|
* Contact Information:
|
| 22 |
|
|
* James P. Ketrenos <ipw2100-admin@linux.intel.com>
|
| 23 |
|
|
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
|
| 24 |
|
|
*
|
| 25 |
|
|
*****************************************************************************/
|
| 26 |
|
|
#ifndef __iwl_channel_h__
|
| 27 |
|
|
#define __iwl_channel_h__
|
| 28 |
|
|
|
| 29 |
|
|
#define IWL_NUM_SCAN_RATES (2)
|
| 30 |
|
|
|
| 31 |
|
|
struct iwl_channel_tgd_info {
|
| 32 |
|
|
u8 type;
|
| 33 |
|
|
s8 max_power;
|
| 34 |
|
|
};
|
| 35 |
|
|
|
| 36 |
|
|
struct iwl_channel_tgh_info {
|
| 37 |
|
|
s64 last_radar_time;
|
| 38 |
|
|
};
|
| 39 |
|
|
|
| 40 |
|
|
/* current Tx power values to use, one for each rate for each channel.
|
| 41 |
|
|
* requested power is limited by:
|
| 42 |
|
|
* -- regulatory EEPROM limits for this channel
|
| 43 |
|
|
* -- hardware capabilities (clip-powers)
|
| 44 |
|
|
* -- spectrum management
|
| 45 |
|
|
* -- user preference (e.g. iwconfig)
|
| 46 |
|
|
* when requested power is set, base power index must also be set. */
|
| 47 |
|
|
struct iwl_channel_power_info {
|
| 48 |
|
|
struct iwl_tx_power tpc; /* actual radio and DSP gain settings */
|
| 49 |
|
|
s8 power_table_index; /* actual (compenst'd) index into gain table */
|
| 50 |
|
|
s8 base_power_index; /* gain index for power at factory temp. */
|
| 51 |
|
|
s8 requested_power; /* power (dBm) requested for this chnl/rate */
|
| 52 |
|
|
};
|
| 53 |
|
|
|
| 54 |
|
|
/* current scan Tx power values to use, one for each scan rate for each
|
| 55 |
|
|
* channel. */
|
| 56 |
|
|
struct iwl_scan_power_info {
|
| 57 |
|
|
struct iwl_tx_power tpc; /* actual radio and DSP gain settings */
|
| 58 |
|
|
s8 power_table_index; /* actual (compenst'd) index into gain table */
|
| 59 |
|
|
s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
|
| 60 |
|
|
};
|
| 61 |
|
|
|
| 62 |
|
|
/* Channel unlock period is 15 seconds. If no beacon or probe response
|
| 63 |
|
|
* has been received within 15 seconds on a locked channel then the channel
|
| 64 |
|
|
* remains locked. */
|
| 65 |
|
|
#define TX_UNLOCK_PERIOD 15
|
| 66 |
|
|
|
| 67 |
|
|
/* CSA lock period is 15 seconds. If a CSA has been received on a channel in
|
| 68 |
|
|
* the last 15 seconds, the channel is locked */
|
| 69 |
|
|
#define CSA_LOCK_PERIOD 15
|
| 70 |
|
|
/*
|
| 71 |
|
|
* One for each channel, holds all channel setup data
|
| 72 |
|
|
* Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
|
| 73 |
|
|
* with one another!
|
| 74 |
|
|
*/
|
| 75 |
|
|
#define IWL4965_MAX_RATE (33)
|
| 76 |
|
|
|
| 77 |
|
|
struct iwl_channel_info {
|
| 78 |
|
|
struct iwl_channel_tgd_info tgd;
|
| 79 |
|
|
struct iwl_channel_tgh_info tgh;
|
| 80 |
|
|
struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
|
| 81 |
|
|
struct iwl_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
|
| 82 |
|
|
* FAT channel */
|
| 83 |
|
|
|
| 84 |
|
|
u8 channel; /* channel number */
|
| 85 |
|
|
u8 flags; /* flags copied from EEPROM */
|
| 86 |
|
|
s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
|
| 87 |
|
|
s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
|
| 88 |
|
|
s8 min_power; /* always 0 */
|
| 89 |
|
|
s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
|
| 90 |
|
|
|
| 91 |
|
|
u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
|
| 92 |
|
|
u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
|
| 93 |
|
|
u8 phymode; /* MODE_IEEE80211{A,B,G} */
|
| 94 |
|
|
|
| 95 |
|
|
/* Radio/DSP gain settings for each "normal" data Tx rate.
|
| 96 |
|
|
* These include, in addition to RF and DSP gain, a few fields for
|
| 97 |
|
|
* remembering/modifying gain settings (indexes). */
|
| 98 |
|
|
struct iwl_channel_power_info power_info[IWL4965_MAX_RATE];
|
| 99 |
|
|
|
| 100 |
|
|
#if IWL == 4965
|
| 101 |
|
|
/* FAT channel info */
|
| 102 |
|
|
s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
|
| 103 |
|
|
s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
|
| 104 |
|
|
s8 fat_min_power; /* always 0 */
|
| 105 |
|
|
s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
|
| 106 |
|
|
u8 fat_flags; /* flags copied from EEPROM */
|
| 107 |
|
|
u8 fat_extension_channel;
|
| 108 |
|
|
#endif
|
| 109 |
|
|
|
| 110 |
|
|
/* Radio/DSP gain settings for each scan rate, for directed scans. */
|
| 111 |
|
|
struct iwl_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
|
| 112 |
|
|
};
|
| 113 |
|
|
|
| 114 |
|
|
struct iwl_clip_group {
|
| 115 |
|
|
/* maximum power level to prevent clipping for each rate, derived by
|
| 116 |
|
|
* us from this band's saturation power in EEPROM */
|
| 117 |
|
|
const s8 clip_powers[IWL_MAX_RATES];
|
| 118 |
|
|
};
|
| 119 |
|
|
|
| 120 |
|
|
static inline int is_channel_valid(const struct iwl_channel_info *ch_info)
|
| 121 |
|
|
{
|
| 122 |
|
|
if (ch_info == NULL)
|
| 123 |
|
|
return 0;
|
| 124 |
|
|
return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
|
| 125 |
|
|
}
|
| 126 |
|
|
|
| 127 |
|
|
static inline int is_channel_narrow(const struct iwl_channel_info *ch_info)
|
| 128 |
|
|
{
|
| 129 |
|
|
return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
|
| 130 |
|
|
}
|
| 131 |
|
|
|
| 132 |
|
|
static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
|
| 133 |
|
|
{
|
| 134 |
|
|
return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
|
| 135 |
|
|
}
|
| 136 |
|
|
|
| 137 |
|
|
static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
|
| 138 |
|
|
{
|
| 139 |
|
|
return ch_info->phymode == MODE_IEEE80211A;
|
| 140 |
|
|
}
|
| 141 |
|
|
|
| 142 |
|
|
static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
|
| 143 |
|
|
{
|
| 144 |
|
|
return ((ch_info->phymode == MODE_IEEE80211B) ||
|
| 145 |
|
|
(ch_info->phymode == MODE_IEEE80211G));
|
| 146 |
|
|
}
|
| 147 |
|
|
|
| 148 |
|
|
static inline int is_channel_passive(const struct iwl_channel_info *ch)
|
| 149 |
|
|
{
|
| 150 |
|
|
return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
|
| 151 |
|
|
}
|
| 152 |
|
|
|
| 153 |
|
|
static inline int is_channel_ibss(const struct iwl_channel_info *ch)
|
| 154 |
|
|
{
|
| 155 |
|
|
return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
|
| 156 |
|
|
}
|
| 157 |
|
|
|
| 158 |
|
|
extern const struct iwl_channel_info *iwl_get_channel_info(
|
| 159 |
|
|
const struct iwl_priv *priv, int phymode, u16 channel);
|
| 160 |
|
|
|
| 161 |
|
|
#endif
|
