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ath9k: Use a subroutine to calculate ALT ratio

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Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2013-08-01 11:53:23 +05:30 committed by John W. Linville
parent 9ddf030179
commit 37133002f5
1 changed files with 79 additions and 94 deletions
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173
drivers/net/wireless/ath/ath9k/antenna.c
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@ -125,6 +125,74 @@ 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,
@ -181,17 +249,21 @@ 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 +
@ -229,95 +301,8 @@ 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;