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freebsd-skq/sys/dev/ath/if_ath_lna_div.h

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Migrate the LNA mixing diversity machinery from the AR9285 HAL to the driver. The AR9485 chip and AR933x SoC both implement LNA diversity. There are a few extra things that need to happen before this can be flipped on for those chips (mostly to do with setting up the different bias values and LNA1/LNA2 RSSI differences) but the first stage is putting this code into the driver layer so it can be reused. This has the added benefit of making it easier to expose configuration options and diagnostic information via the ioctl API. That's not yet being done but it sure would be nice to do so. Tested: * AR9285, with LNA diversity enabled * AR9285, with LNA diversity disabled in EEPROM
2013-06-12 14:52:57 +00:00
/*-
sys/dev: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
2017-11-27 14:52:40 +00:00
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
Migrate the LNA mixing diversity machinery from the AR9285 HAL to the driver. The AR9485 chip and AR933x SoC both implement LNA diversity. There are a few extra things that need to happen before this can be flipped on for those chips (mostly to do with setting up the different bias values and LNA1/LNA2 RSSI differences) but the first stage is putting this code into the driver layer so it can be reused. This has the added benefit of making it easier to expose configuration options and diagnostic information via the ioctl API. That's not yet being done but it sure would be nice to do so. Tested: * AR9285, with LNA diversity enabled * AR9285, with LNA diversity disabled in EEPROM
2013-06-12 14:52:57 +00:00
* Copyright (c) 2013 Adrian Chadd <adrian@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES.
*
* $FreeBSD$
*/
#ifndef __IF_ATH_LNA_DIV_H__
#define __IF_ATH_LNA_DIV_H__
#define ATH_ANT_RX_CURRENT_SHIFT 4
#define ATH_ANT_RX_MAIN_SHIFT 2
#define ATH_ANT_RX_MASK 0x3
#define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
#define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
#define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
#define ATH_ANT_DIV_COMB_INIT_COUNT 95
#define ATH_ANT_DIV_COMB_MAX_COUNT 100
#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
#define ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA -1
#define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
#define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
#define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
struct if_ath_ant_comb_state {
uint16_t count;
uint16_t total_pkt_count;
HAL_BOOL scan;
HAL_BOOL scan_not_start;
int main_total_rssi;
int alt_total_rssi;
int alt_recv_cnt;
int main_recv_cnt;
int rssi_lna1;
int rssi_lna2;
int rssi_add;
int rssi_sub;
int rssi_first;
int rssi_second;
int rssi_third;
HAL_BOOL alt_good;
int quick_scan_cnt;
int main_conf;
HAL_ANT_DIV_COMB_LNA_CONF first_quick_scan_conf;
HAL_ANT_DIV_COMB_LNA_CONF second_quick_scan_conf;
int first_bias;
int second_bias;
HAL_BOOL first_ratio;
HAL_BOOL second_ratio;
unsigned long scan_start_time;
Initial AR9485/AR933x 1x1 LNA diversity work. * Add the LNA configuration table entries for AR933x/AR9485 * Add a chip-dependent LNA signal level delta in the startup path * Add a TODO list for the stuff I haven't yet ported over but I haven't. Tested: * AR9462 with LNA diversity enabled
2013-06-14 03:42:10 +00:00
int lna1_lna2_delta;
Migrate the LNA mixing diversity machinery from the AR9285 HAL to the driver. The AR9485 chip and AR933x SoC both implement LNA diversity. There are a few extra things that need to happen before this can be flipped on for those chips (mostly to do with setting up the different bias values and LNA1/LNA2 RSSI differences) but the first stage is putting this code into the driver layer so it can be reused. This has the added benefit of making it easier to expose configuration options and diagnostic information via the ioctl API. That's not yet being done but it sure would be nice to do so. Tested: * AR9285, with LNA diversity enabled * AR9285, with LNA diversity disabled in EEPROM
2013-06-12 14:52:57 +00:00
};
extern int ath_lna_div_attach(struct ath_softc *sc);
extern int ath_lna_div_detach(struct ath_softc *sc);
extern int ath_lna_div_ioctl(struct ath_softc *sc, struct ath_diag *ad);
extern int ath_lna_div_enable(struct ath_softc *sc,
const struct ieee80211_channel *ch);
extern void ath_lna_rx_comb_scan(struct ath_softc *sc,
struct ath_rx_status *rs, unsigned long ticks, int hz);
#endif /* __IF_ATH_LNA_DIV_H__ */
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