64 lines
2.2 KiB
Diff
64 lines
2.2 KiB
Diff
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Wed, 20 Jan 2016 16:46:04 +0100
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Subject: [PATCH] brcmfmac: fix setting primary channel for 80 MHz width
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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First of all it changes the way we calculate primary channel offset. If
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we use e.g. 80 MHz channel with primary frequency 5180 MHz (which means
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center frequency is 5210 MHz) it makes sense to calculate primary offset
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as -30 MHz.
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Then it fixes values we compare primary_offset with. We were comparing
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offset in MHz against -2 or 2 which was resulting in picking a wrong
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primary channel.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
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@@ -247,7 +247,7 @@ static u16 chandef_to_chanspec(struct br
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brcmf_dbg(TRACE, "chandef: control %d center %d width %d\n",
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ch->chan->center_freq, ch->center_freq1, ch->width);
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ch_inf.chnum = ieee80211_frequency_to_channel(ch->center_freq1);
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- primary_offset = ch->center_freq1 - ch->chan->center_freq;
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+ primary_offset = ch->chan->center_freq - ch->center_freq1;
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switch (ch->width) {
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case NL80211_CHAN_WIDTH_20:
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case NL80211_CHAN_WIDTH_20_NOHT:
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@@ -256,24 +256,21 @@ static u16 chandef_to_chanspec(struct br
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break;
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case NL80211_CHAN_WIDTH_40:
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ch_inf.bw = BRCMU_CHAN_BW_40;
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- if (primary_offset < 0)
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+ if (primary_offset > 0)
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ch_inf.sb = BRCMU_CHAN_SB_U;
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else
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ch_inf.sb = BRCMU_CHAN_SB_L;
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break;
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case NL80211_CHAN_WIDTH_80:
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ch_inf.bw = BRCMU_CHAN_BW_80;
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- if (primary_offset < 0) {
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- if (primary_offset < -CH_10MHZ_APART)
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- ch_inf.sb = BRCMU_CHAN_SB_UU;
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- else
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- ch_inf.sb = BRCMU_CHAN_SB_UL;
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- } else {
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- if (primary_offset > CH_10MHZ_APART)
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- ch_inf.sb = BRCMU_CHAN_SB_LL;
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- else
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- ch_inf.sb = BRCMU_CHAN_SB_LU;
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- }
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+ if (primary_offset == -30)
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+ ch_inf.sb = BRCMU_CHAN_SB_LL;
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+ else if (primary_offset == -10)
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+ ch_inf.sb = BRCMU_CHAN_SB_LU;
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+ else if (primary_offset == 10)
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+ ch_inf.sb = BRCMU_CHAN_SB_UL;
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+ else
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+ ch_inf.sb = BRCMU_CHAN_SB_UU;
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break;
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case NL80211_CHAN_WIDTH_80P80:
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case NL80211_CHAN_WIDTH_160:
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