package/mac80211/patches/565-ath9k-add-fast_div_bias-configuration-for-diversity-.patch

   1 --- a/drivers/net/wireless/ath/ath9k/recv.c
   2 +++ b/drivers/net/wireless/ath/ath9k/recv.c
   3 @@ -1366,6 +1366,89 @@ static void ath_ant_div_conf_fast_divbia
   4                 default:
   5                         break;
   6                 }
   7 +       } else if (ant_conf->div_group == 1) {
   8 +               /* Adjust the fast_div_bias based on main and alt_lna_conf */
   9 +               switch ((ant_conf->main_lna_conf << 4) |
  10 +                       ant_conf->alt_lna_conf) {
  11 +               case 0x01: /* A-B LNA2 */
  12 +                       ant_conf->fast_div_bias = 0x1;
  13 +                       ant_conf->main_gaintb = 0;
  14 +                       ant_conf->alt_gaintb = 0;
  15 +                       break;
  16 +               case 0x02: /* A-B LNA1 */
  17 +                       ant_conf->fast_div_bias = 0x1;
  18 +                       ant_conf->main_gaintb = 0;
  19 +                       ant_conf->alt_gaintb = 0;
  20 +                       break;
  21 +               case 0x03: /* A-B A+B */
  22 +                       ant_conf->fast_div_bias = 0x1;
  23 +                       ant_conf->main_gaintb = 0;
  24 +                       ant_conf->alt_gaintb = 0;
  25 +                       break;
  26 +               case 0x10: /* LNA2 A-B */
  27 +                       if (!(antcomb->scan) &&
  28 +                           (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO))
  29 +                               ant_conf->fast_div_bias = 0x3f;
  30 +                       else
  31 +                               ant_conf->fast_div_bias = 0x1;
  32 +                       ant_conf->main_gaintb = 0;
  33 +                       ant_conf->alt_gaintb = 0;
  34 +                       break;
  35 +               case 0x12: /* LNA2 LNA1 */
  36 +                       ant_conf->fast_div_bias = 0x1;
  37 +                       ant_conf->main_gaintb = 0;
  38 +                       ant_conf->alt_gaintb = 0;
  39 +                       break;
  40 +               case 0x13: /* LNA2 A+B */
  41 +                       if (!(antcomb->scan) &&
  42 +                           (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO))
  43 +                               ant_conf->fast_div_bias = 0x3f;
  44 +                       else
  45 +                               ant_conf->fast_div_bias = 0x1;
  46 +                       ant_conf->main_gaintb = 0;
  47 +                       ant_conf->alt_gaintb = 0;
  48 +                       break;
  49 +               case 0x20: /* LNA1 A-B */
  50 +                       if (!(antcomb->scan) &&
  51 +                           (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO))
  52 +                               ant_conf->fast_div_bias = 0x3f;
  53 +                       else
  54 +                               ant_conf->fast_div_bias = 0x1;
  55 +                       ant_conf->main_gaintb = 0;
  56 +                       ant_conf->alt_gaintb = 0;
  57 +                       break;
  58 +               case 0x21: /* LNA1 LNA2 */
  59 +                       ant_conf->fast_div_bias = 0x1;
  60 +                       ant_conf->main_gaintb = 0;
  61 +                       ant_conf->alt_gaintb = 0;
  62 +                       break;
  63 +               case 0x23: /* LNA1 A+B */
  64 +                       if (!(antcomb->scan) &&
  65 +                           (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO))
  66 +                               ant_conf->fast_div_bias = 0x3f;
  67 +                       else
  68 +                               ant_conf->fast_div_bias = 0x1;
  69 +                       ant_conf->main_gaintb = 0;
  70 +                       ant_conf->alt_gaintb = 0;
  71 +                       break;
  72 +               case 0x30: /* A+B A-B */
  73 +                       ant_conf->fast_div_bias = 0x1;
  74 +                       ant_conf->main_gaintb = 0;
  75 +                       ant_conf->alt_gaintb = 0;
  76 +                       break;
  77 +               case 0x31: /* A+B LNA2 */
  78 +                       ant_conf->fast_div_bias = 0x1;
  79 +                       ant_conf->main_gaintb = 0;
  80 +                       ant_conf->alt_gaintb = 0;
  81 +                       break;
  82 +               case 0x32: /* A+B LNA1 */
  83 +                       ant_conf->fast_div_bias = 0x1;
  84 +                       ant_conf->main_gaintb = 0;
  85 +                       ant_conf->alt_gaintb = 0;
  86 +                       break;
  87 +               default:
  88 +                       break;
  89 +               }
  90         } else if (ant_conf->div_group == 2) {
  91                 /* Adjust the fast_div_bias based on main and alt_lna_conf */
  92                 switch ((ant_conf->main_lna_conf << 4) |