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| author | Yan-Hsuan Chuang <yhchuang@realtek.com> | 2017-04-03 13:41:41 -0500 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2017-04-05 15:53:30 +0300 |
| commit | a66a4176b74cfbcfc91b7c0b303d480226da125a (patch) | |
| tree | ddbbfe8059950680b777b05e0517c0a97ee695e7 /drivers/net | |
| parent | 44e9a5340e6859a2a00cc470a8acfcbcaf64050a (diff) | |
| download | linux-a66a4176b74cfbcfc91b7c0b303d480226da125a.tar.gz linux-a66a4176b74cfbcfc91b7c0b303d480226da125a.tar.bz2 linux-a66a4176b74cfbcfc91b7c0b303d480226da125a.zip | |
rtlwifi: btcoex: 23b 2ant: add comments to describe how duration adjusted
Since btcoex uses static variables to store the cumulative information
on the wifi status, some tricks are used that are a bit obscure. We add
some comments about the criteria we use to adjust wifi duration.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c index b1a4c8466bc6..fb72bcd4090c 100644 --- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c +++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c @@ -1622,6 +1622,9 @@ static void btc8723b2ant_tdma_duration_adjust(struct btc_coexist *btcoexist, dn = 0; if (up >= n) { + /* if retry count during continuous n*2 + * seconds is 0, enlarge WiFi duration + */ wait_count = 0; n = 3; up = 0; @@ -1638,12 +1641,20 @@ static void btc8723b2ant_tdma_duration_adjust(struct btc_coexist *btcoexist, up = 0; if (dn == 2) { + /* if continuous 2 retry count(every 2 + * seconds) >0 and < 3, reduce WiFi duration + */ if (wait_count <= 2) + /* avoid loop between the two levels */ m++; else m = 1; if (m >= 20) + /* maximum of m = 20 ' will recheck if + * need to adjust wifi duration in + * maximum time interval 120 seconds + */ m = 20; n = 3 * m; @@ -1655,12 +1666,20 @@ static void btc8723b2ant_tdma_duration_adjust(struct btc_coexist *btcoexist, "[BTCoex], Decrease wifi duration for retry_counter<3!!\n"); } } else { + /* retry count > 3, once retry count > 3, to reduce + * WiFi duration + */ if (wait_count == 1) + /* to avoid loop between the two levels */ m++; else m = 1; if (m >= 20) + /* maximum of m = 20 ' will recheck if need to + * adjust wifi duration in maximum time interval + * 120 seconds + */ m = 20; n = 3 * m; |