From: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
Signed-off-by: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/antenna.c | 173 ++++++++++++++-----------------
1 file changed, 79 insertions(+), 94 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c
index 82839b0..42f3b87 100644
--- a/drivers/net/wireless/ath/ath9k/antenna.c
+++ b/drivers/net/wireless/ath/ath9k/antenna.c
@@ -164,6 +164,74 @@ static void ath_lnaconf_alt_good_scan(struct ath_ant_comb *antcomb,
}
}
+static void ath_ant_set_alt_ratio(struct ath_ant_comb *antcomb,
+ struct ath_hw_antcomb_conf *conf)
+{
+ /* set alt to the conf with maximun ratio */
+ if (antcomb->first_ratio && antcomb->second_ratio) {
+ if (antcomb->rssi_second > antcomb->rssi_third) {
+ /* first alt*/
+ if ((antcomb->first_quick_scan_conf == ATH_ANT_DIV_COMB_LNA1) ||
+ (antcomb->first_quick_scan_conf == ATH_ANT_DIV_COMB_LNA2))
+ /* Set alt LNA1 or LNA2*/
+ if (conf->main_lna_conf == ATH_ANT_DIV_COMB_LNA2)
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1;
+ else
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA2;
+ else
+ /* Set alt to A+B or A-B */
+ conf->alt_lna_conf =
+ antcomb->first_quick_scan_conf;
+ } else if ((antcomb->second_quick_scan_conf == ATH_ANT_DIV_COMB_LNA1) ||
+ (antcomb->second_quick_scan_conf == ATH_ANT_DIV_COMB_LNA2)) {
+ /* Set alt LNA1 or LNA2 */
+ if (conf->main_lna_conf == ATH_ANT_DIV_COMB_LNA2)
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1;
+ else
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA2;
+ } else {
+ /* Set alt to A+B or A-B */
+ conf->alt_lna_conf = antcomb->second_quick_scan_conf;
+ }
+ } else if (antcomb->first_ratio) {
+ /* first alt */
+ if ((antcomb->first_quick_scan_conf == ATH_ANT_DIV_COMB_LNA1) ||
+ (antcomb->first_quick_scan_conf == ATH_ANT_DIV_COMB_LNA2))
+ /* Set alt LNA1 or LNA2 */
+ if (conf->main_lna_conf == ATH_ANT_DIV_COMB_LNA2)
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1;
+ else
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA2;
+ else
+ /* Set alt to A+B or A-B */
+ conf->alt_lna_conf = antcomb->first_quick_scan_conf;
+ } else if (antcomb->second_ratio) {
+ /* second alt */
+ if ((antcomb->second_quick_scan_conf == ATH_ANT_DIV_COMB_LNA1) ||
+ (antcomb->second_quick_scan_conf == ATH_ANT_DIV_COMB_LNA2))
+ /* Set alt LNA1 or LNA2 */
+ if (conf->main_lna_conf == ATH_ANT_DIV_COMB_LNA2)
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1;
+ else
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA2;
+ else
+ /* Set alt to A+B or A-B */
+ conf->alt_lna_conf = antcomb->second_quick_scan_conf;
+ } else {
+ /* main is largest */
+ if ((antcomb->main_conf == ATH_ANT_DIV_COMB_LNA1) ||
+ (antcomb->main_conf == ATH_ANT_DIV_COMB_LNA2))
+ /* Set alt LNA1 or LNA2 */
+ if (conf->main_lna_conf == ATH_ANT_DIV_COMB_LNA2)
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA1;
+ else
+ conf->alt_lna_conf = ATH_ANT_DIV_COMB_LNA2;
+ else
+ /* Set alt to A+B or A-B */
+ conf->alt_lna_conf = antcomb->main_conf;
+ }
+}
+
static void ath_select_ant_div_from_quick_scan(struct ath_ant_comb *antcomb,
struct ath_hw_antcomb_conf *div_ant_conf,
int main_rssi_avg, int alt_rssi_avg,
@@ -220,17 +288,21 @@ static void ath_select_ant_div_from_quick_scan(struct ath_ant_comb *antcomb,
antcomb->rssi_first = main_rssi_avg;
antcomb->rssi_third = alt_rssi_avg;
- if (antcomb->second_quick_scan_conf == ATH_ANT_DIV_COMB_LNA1)
+ switch(antcomb->second_quick_scan_conf) {
+ case ATH_ANT_DIV_COMB_LNA1:
antcomb->rssi_lna1 = alt_rssi_avg;
- else if (antcomb->second_quick_scan_conf ==
- ATH_ANT_DIV_COMB_LNA2)
+ break;
+ case ATH_ANT_DIV_COMB_LNA2:
antcomb->rssi_lna2 = alt_rssi_avg;
- else if (antcomb->second_quick_scan_conf ==
- ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2) {
+ break;
+ case ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2:
if (antcomb->main_conf == ATH_ANT_DIV_COMB_LNA2)
antcomb->rssi_lna2 = main_rssi_avg;
else if (antcomb->main_conf == ATH_ANT_DIV_COMB_LNA1)
antcomb->rssi_lna1 = main_rssi_avg;
+ break;
+ default:
+ break;
}
if (antcomb->rssi_lna2 > antcomb->rssi_lna1 +
@@ -268,95 +340,8 @@ static void ath_select_ant_div_from_quick_scan(struct ath_ant_comb *antcomb,
antcomb->second_ratio = false;
}
- /* set alt to the conf with maximun ratio */
- if (antcomb->first_ratio && antcomb->second_ratio) {
- if (antcomb->rssi_second > antcomb->rssi_third) {
- /* first alt*/
- if ((antcomb->first_quick_scan_conf ==
- ATH_ANT_DIV_COMB_LNA1) ||
- (antcomb->first_quick_scan_conf ==
- ATH_ANT_DIV_COMB_LNA2))
- /* Set alt LNA1 or LNA2*/
- if (div_ant_conf->main_lna_conf ==
- ATH_ANT_DIV_COMB_LNA2)
- div_ant_conf->alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
- else
- div_ant_conf->alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
- else
- /* Set alt to A+B or A-B */
- div_ant_conf->alt_lna_conf =
- antcomb->first_quick_scan_conf;
- } else if ((antcomb->second_quick_scan_conf ==
- ATH_ANT_DIV_COMB_LNA1) ||
- (antcomb->second_quick_scan_conf ==
- ATH_ANT_DIV_COMB_LNA2)) {
- /* Set alt LNA1 or LNA2 */
- if (div_ant_conf->main_lna_conf ==
- ATH_ANT_DIV_COMB_LNA2)
- div_ant_conf->alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
- else
- div_ant_conf->alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
- } else {
- /* Set alt to A+B or A-B */
- div_ant_conf->alt_lna_conf =
- antcomb->second_quick_scan_conf;
- }
- } else if (antcomb->first_ratio) {
- /* first alt */
- if ((antcomb->first_quick_scan_conf ==
- ATH_ANT_DIV_COMB_LNA1) ||
- (antcomb->first_quick_scan_conf ==
- ATH_ANT_DIV_COMB_LNA2))
- /* Set alt LNA1 or LNA2 */
- if (div_ant_conf->main_lna_conf ==
- ATH_ANT_DIV_COMB_LNA2)
- div_ant_conf->alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
- else
- div_ant_conf->alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
- else
- /* Set alt to A+B or A-B */
- div_ant_conf->alt_lna_conf =
- antcomb->first_quick_scan_conf;
- } else if (antcomb->second_ratio) {
- /* second alt */
- if ((antcomb->second_quick_scan_conf ==
- ATH_ANT_DIV_COMB_LNA1) ||
- (antcomb->second_quick_scan_conf ==
- ATH_ANT_DIV_COMB_LNA2))
- /* Set alt LNA1 or LNA2 */
- if (div_ant_conf->main_lna_conf ==
- ATH_ANT_DIV_COMB_LNA2)
- div_ant_conf->alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
- else
- div_ant_conf->alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
- else
- /* Set alt to A+B or A-B */
- div_ant_conf->alt_lna_conf =
- antcomb->second_quick_scan_conf;
- } else {
- /* main is largest */
- if ((antcomb->main_conf == ATH_ANT_DIV_COMB_LNA1) ||
- (antcomb->main_conf == ATH_ANT_DIV_COMB_LNA2))
- /* Set alt LNA1 or LNA2 */
- if (div_ant_conf->main_lna_conf ==
- ATH_ANT_DIV_COMB_LNA2)
- div_ant_conf->alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA1;
- else
- div_ant_conf->alt_lna_conf =
- ATH_ANT_DIV_COMB_LNA2;
- else
- /* Set alt to A+B or A-B */
- div_ant_conf->alt_lna_conf = antcomb->main_conf;
- }
+ ath_ant_set_alt_ratio(antcomb, div_ant_conf);
+
break;
default:
break;
--
1.8.3.4
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