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ath9k: fix and simplify FFT max index retrieval

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FFT max index retrieval was not retrieved correctly for HT20/HT40 FFT
frames. Fixing the retrieval allows us to remove the fixup function as
well. While at it, split the spectral_max_index function into versions
for ht20 and ht40 to simplify the code.

Cc: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Simon Wunderlich
2018-10-01 17:26:51 +03:00
committed by Kalle Valo
parent b796a6c04e
commit 2f85786b8a
2 changed files with 23 additions and 39 deletions
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17
drivers/net/wireless/ath/ath9k/common-spectral.h
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@@ -145,6 +145,23 @@ static inline u8 spectral_max_index(u8 *bins, int num_bins)
return m;
}
static inline u8 spectral_max_index_ht40(u8 *bins)
{
u8 idx;
idx = spectral_max_index(bins, SPECTRAL_HT20_40_NUM_BINS);
/* positive values and zero are starting at the beginning
* of the data field.
*/
return idx % (SPECTRAL_HT20_40_NUM_BINS / 2);
}
static inline u8 spectral_max_index_ht20(u8 *bins)
{
return spectral_max_index(bins, SPECTRAL_HT20_NUM_BINS);
}
/* return the bitmap weight from the all/upper/lower bins */
static inline u8 spectral_bitmap_weight(u8 *bins)
{