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https://github.com/torvalds/linux
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8a90555fea
This patch fixes multiple issues with the current RTT implementation in ath9k. * The data that is obtained from the RTT interface registers are stored in 31:5 - mask out the extra bits when reading them. * A history buffer is maintained which is not needed at all. Remove this array and just store the baseband data for each chain (or bank). * A 'num_readings' variable was being used to handle the last entry. But it was being used in an improper manner, with the result that the RTT values were never being written to the RTT Interface registers. Fix this by using a simple flag. * Stop baseband operations before programming the calibration values to the HW. * Do not restore RX gain settings as part of RTT. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
30 lines
1.2 KiB
C
30 lines
1.2 KiB
C
/*
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* Copyright (c) 2010-2011 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef AR9003_RTT_H
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#define AR9003_RTT_H
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void ar9003_hw_rtt_enable(struct ath_hw *ah);
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void ar9003_hw_rtt_disable(struct ath_hw *ah);
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void ar9003_hw_rtt_set_mask(struct ath_hw *ah, u32 rtt_mask);
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bool ar9003_hw_rtt_force_restore(struct ath_hw *ah);
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void ar9003_hw_rtt_load_hist(struct ath_hw *ah);
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void ar9003_hw_rtt_fill_hist(struct ath_hw *ah);
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void ar9003_hw_rtt_clear_hist(struct ath_hw *ah);
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bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan);
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#endif
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