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P2P: Enhance determination of secondary offset to support 6 GHz channels

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Current definition of wpas_p2p_get_ht40_mode() determines secondary
offset in the 5 GHz band. Enhance the functionality of this function to
determine offset to support 6 GHz channels also.

Signed-off-by: Sreeramya Soratkal <ssramya@codeaurora.org>
This commit is contained in:
Sreeramya Soratkal 2021-07-22 18:07:47 +05:30 • committed by Jouni Malinen
parent 575a8e6ca3
commit f725254cc1
5 changed files with 47 additions and 10 deletions
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24
src/common/ieee802_11_common.c
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@ -2293,6 +2293,30 @@ bool is_6ghz_psc_frequency(int freq)
}
/**
* get_6ghz_sec_channel - Get the relative position of the secondary channel
* to the primary channel in 6 GHz
* @channel: Primary channel to be checked for (in global op class 131)
* Returns: 1 = secondary channel above, -1 = secondary channel below
*/
int get_6ghz_sec_channel(int channel)
{
/*
* In the 6 GHz band, primary channels are numbered as 1, 5, 9, 13.., so
* the 40 MHz channels are formed with the channel pairs as (1,5),
* (9,13), (17,21)..
* The secondary channel for a given primary channel is below the
* primary channel for the channels 5, 13, 21.. and it is above the
* primary channel for the channels 1, 9, 17..
*/
if (((channel - 1) / 4) % 2)
return -1;
return 1;
}
int ieee802_11_parse_candidate_list(const char *pos, u8 *nei_rep,
size_t nei_rep_len)
{