ath9k: fix some issues in PA predistortion (still disabled by default)
Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 36744
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1 changed files with 41 additions and 0 deletions
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@ -4570,3 +4570,44 @@
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return -EINVAL;
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trace_drv_add_interface(local, sdata);
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--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
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+++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
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@@ -454,6 +454,8 @@ static bool create_pa_curve(u32 *data_L,
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if (accum_cnt <= thresh_accum_cnt)
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continue;
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+ max_index++;
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+
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/* sum(tx amplitude) */
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accum_tx = ((data_L[i] >> 16) & 0xffff) |
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((data_U[i] & 0x7ff) << 16);
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@@ -468,20 +470,21 @@ static bool create_pa_curve(u32 *data_L,
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accum_tx <<= scale_factor;
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accum_rx <<= scale_factor;
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- x_est[i + 1] = (((accum_tx + accum_cnt) / accum_cnt) + 32) >>
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- scale_factor;
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+ x_est[max_index] =
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+ (((accum_tx + accum_cnt) / accum_cnt) + 32) >>
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+ scale_factor;
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- Y[i + 1] = ((((accum_rx + accum_cnt) / accum_cnt) + 32) >>
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+ Y[max_index] =
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+ ((((accum_rx + accum_cnt) / accum_cnt) + 32) >>
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scale_factor) +
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- (1 << scale_factor) * max_index + 16;
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+ (1 << scale_factor) * i + 16;
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if (accum_ang >= (1 << 26))
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accum_ang -= 1 << 27;
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- theta[i + 1] = ((accum_ang * (1 << scale_factor)) + accum_cnt) /
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- accum_cnt;
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-
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- max_index++;
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+ theta[max_index] =
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+ ((accum_ang * (1 << scale_factor)) + accum_cnt) /
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+ accum_cnt;
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}
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/*
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