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43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
From dadbaf6d113470f6b013dd5cbd0d734634f3d5f9 Mon Sep 17 00:00:00 2001
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From: P Praneesh <ppranees@codeaurora.org>
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Date: Tue, 5 Jan 2021 01:32:39 +0530
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Subject: [PATCH] hostapd: update 160MHz center freq calculation in 6GHz
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In 6G Operation channel information, The Channel Center Frequency
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Segment 0 field indicates the channel center frequency index for
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the 20 MHz, 40 MHz or 80 MHz, or 80+80 MHz channel on which the
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BSS operates in the 6 GHz band. If the BSS channel width is 160 MHz
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then the Channel Center Frequency Segment 0 field indicates the
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channel center frequency index of the primary 80 MHz.
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The Channel Center Frequency Segment 1 field indicates the channel
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center frequency index of the 160 MHz channel on which the BSS operates
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in the 6 GHz band.
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Since Channel Center Frequency Segment 1 is 0 for 160MHz, some of the
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6G third party clients associated in 80MHz. Hence updated seg0 and
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seg1 field as per standard (Draft P802.11_ax_D7.0).
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Signed-off-by: P Praneesh <ppranees@codeaurora.org>
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---
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src/ap/ieee802_11_he.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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--- a/src/ap/ieee802_11_he.c
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+++ b/src/ap/ieee802_11_he.c
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@@ -234,6 +234,14 @@ u8 * hostapd_eid_he_operation(struct hos
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*pos++ = center_idx_to_bw_6ghz(seg0);
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/* Channel Center Freq Seg0/Seg1 */
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+ if (hapd->iconf->he_oper_chwidth == 2) {
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+ seg1 = seg0;
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+ if (hapd->iconf->channel < seg0)
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+ seg0 -= 8;
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+ else
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+ seg0 += 8;
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+ }
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+
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*pos++ = seg0;
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*pos++ = seg1;
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/* Minimum Rate */
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