From: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
Signed-off-by: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/antenna.c | 166 +++++++++++++++----------------
1 file changed, 79 insertions(+), 87 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c
index 8675c3f..c52959b 100644
--- a/drivers/net/wireless/ath/ath9k/antenna.c
+++ b/drivers/net/wireless/ath/ath9k/antenna.c
@@ -596,6 +596,79 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
}
}
+static void ath_ant_try_scan(struct ath_ant_comb *antcomb,
+ struct ath_hw_antcomb_conf *conf,
+ int curr_alt_set, int alt_rssi_avg,
+ int main_rssi_avg)
+{
+ switch (curr_alt_set) {
+ case ATH_ANT_DIV_COMB_LNA2:
+ antcomb->rssi_lna2 = alt_rssi_avg;
+ antcomb->rssi_lna1 = main_rssi_avg;
+ antcomb->scan = true;
+ /* set to A+B */
+ conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA1;
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
+ break;
+ case ATH_ANT_DIV_COMB_LNA1:
+ antcomb->rssi_lna1 = alt_rssi_avg;
+ antcomb->rssi_lna2 = main_rssi_avg;
+ antcomb->scan = true;
+ /* set to A+B */
+ conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA2;
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
+ break;
+ case ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2:
+ antcomb->rssi_add = alt_rssi_avg;
+ antcomb->scan = true;
+ /* set to A-B */
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
+ break;
+ case ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2:
+ antcomb->rssi_sub = alt_rssi_avg;
+ antcomb->scan = false;
+ if (antcomb->rssi_lna2 >
+ (antcomb->rssi_lna1 + ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA)) {
+ /* use LNA2 as main LNA */
+ if ((antcomb->rssi_add > antcomb->rssi_lna1) &&
+ (antcomb->rssi_add > antcomb->rssi_sub)) {
+ /* set to A+B */
+ conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA2;
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
+ } else if (antcomb->rssi_sub >
+ antcomb->rssi_lna1) {
+ /* set to A-B */
+ conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA2;
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
+ } else {
+ /* set to LNA1 */
+ conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA2;
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1;
+ }
+ } else {
+ /* use LNA1 as main LNA */
+ if ((antcomb->rssi_add > antcomb->rssi_lna2) &&
+ (antcomb->rssi_add > antcomb->rssi_sub)) {
+ /* set to A+B */
+ conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA1;
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
+ } else if (antcomb->rssi_sub >
+ antcomb->rssi_lna1) {
+ /* set to A-B */
+ conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA1;
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
+ } else {
+ /* set to LNA2 */
+ conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA1;
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA2;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+}
+
static bool ath_ant_try_switch(struct ath_hw_antcomb_conf *div_ant_conf,
int alt_ratio, int alt_rssi_avg,
int main_rssi_avg, int curr_main_set,
@@ -735,103 +808,22 @@ void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs)
goto div_comb_done;
if (!antcomb->scan_not_start) {
- switch (curr_alt_set) {
- case ATH_ANT_DIV_COMB_LNA2:
- antcomb->rssi_lna2 = alt_rssi_avg;
- antcomb->rssi_lna1 = main_rssi_avg;
- antcomb->scan = true;
- /* set to A+B */
- div_ant_conf.main_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
- div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
- break;
- case ATH_ANT_DIV_COMB_LNA1:
- antcomb->rssi_lna1 = alt_rssi_avg;
- antcomb->rssi_lna2 = main_rssi_avg;
- antcomb->scan = true;
- /* set to A+B */
- div_ant_conf.main_lna_conf = ATH_ANT_DIV_COMB_LNA2;
- div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
- break;
- case ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2:
- antcomb->rssi_add = alt_rssi_avg;
- antcomb->scan = true;
- /* set to A-B */
- div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
- break;
- case ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2:
- antcomb->rssi_sub = alt_rssi_avg;
- antcomb->scan = false;
- if (antcomb->rssi_lna2 >
- (antcomb->rssi_lna1 +
- ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA)) {
- /* use LNA2 as main LNA */
- if ((antcomb->rssi_add > antcomb->rssi_lna1) &&
- (antcomb->rssi_add > antcomb->rssi_sub)) {
- /* set to A+B */
- div_ant_conf.main_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
- div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
- } else if (antcomb->rssi_sub >
- antcomb->rssi_lna1) {
- /* set to A-B */
- div_ant_conf.main_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
- div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
- } else {
- /* set to LNA1 */
- div_ant_conf.main_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
- div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
- }
- } else {
- /* use LNA1 as main LNA */
- if ((antcomb->rssi_add > antcomb->rssi_lna2) &&
- (antcomb->rssi_add > antcomb->rssi_sub)) {
- /* set to A+B */
- div_ant_conf.main_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
- div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2;
- } else if (antcomb->rssi_sub >
- antcomb->rssi_lna1) {
- /* set to A-B */
- div_ant_conf.main_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
- div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2;
- } else {
- /* set to LNA2 */
- div_ant_conf.main_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
- div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
- }
- }
- break;
- default:
- break;
- }
+ ath_ant_try_scan(antcomb, &div_ant_conf, curr_alt_set,
+ alt_rssi_avg, main_rssi_avg);
} else {
if (!antcomb->alt_good) {
antcomb->scan_not_start = false;
/* Set alt to another LNA */
if (curr_main_set == ATH_ANT_DIV_COMB_LNA2) {
div_ant_conf.main_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
+ ATH_ANT_DIV_COMB_LNA2;
div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
+ ATH_ANT_DIV_COMB_LNA1;
} else if (curr_main_set == ATH_ANT_DIV_COMB_LNA1) {
div_ant_conf.main_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
+ ATH_ANT_DIV_COMB_LNA1;
div_ant_conf.alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
+ ATH_ANT_DIV_COMB_LNA2;
}
goto div_comb_done;
}
--
1.8.3.4
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