diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/recv.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/recv.c | 147 |
1 files changed, 115 insertions, 32 deletions
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 07e35e59c9e3..70dc8ecdad4d 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -14,6 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include <linux/dma-mapping.h> #include "ath9k.h" #include "ar9003_mac.h" @@ -39,6 +40,7 @@ static inline bool ath_ant_div_comb_alt_check(u8 div_group, int alt_ratio, result = true; break; case 1: + case 2: if ((((curr_main_set == ATH_ANT_DIV_COMB_LNA2) && (curr_alt_set == ATH_ANT_DIV_COMB_LNA1) && (alt_rssi_avg >= (main_rssi_avg - 5))) || @@ -1075,39 +1077,39 @@ static void ath_lnaconf_alt_good_scan(struct ath_ant_comb *antcomb, antcomb->rssi_lna1 = main_rssi_avg; switch ((ant_conf.main_lna_conf << 4) | ant_conf.alt_lna_conf) { - case (0x10): /* LNA2 A-B */ + case 0x10: /* LNA2 A-B */ antcomb->main_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2; antcomb->first_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2; antcomb->second_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1; break; - case (0x20): /* LNA1 A-B */ + case 0x20: /* LNA1 A-B */ antcomb->main_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2; antcomb->first_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2; antcomb->second_quick_scan_conf = ATH_ANT_DIV_COMB_LNA2; break; - case (0x21): /* LNA1 LNA2 */ + case 0x21: /* LNA1 LNA2 */ antcomb->main_conf = ATH_ANT_DIV_COMB_LNA2; antcomb->first_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2; antcomb->second_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2; break; - case (0x12): /* LNA2 LNA1 */ + case 0x12: /* LNA2 LNA1 */ antcomb->main_conf = ATH_ANT_DIV_COMB_LNA1; antcomb->first_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2; antcomb->second_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2; break; - case (0x13): /* LNA2 A+B */ + case 0x13: /* LNA2 A+B */ antcomb->main_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2; antcomb->first_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2; antcomb->second_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1; break; - case (0x23): /* LNA1 A+B */ + case 0x23: /* LNA1 A+B */ antcomb->main_conf = ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2; antcomb->first_quick_scan_conf = ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2; @@ -1324,65 +1326,148 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf, /* Adjust the fast_div_bias based on main and alt lna conf */ switch ((ant_conf->main_lna_conf << 4) | ant_conf->alt_lna_conf) { - case (0x01): /* A-B LNA2 */ + case 0x01: /* A-B LNA2 */ ant_conf->fast_div_bias = 0x3b; break; - case (0x02): /* A-B LNA1 */ + case 0x02: /* A-B LNA1 */ ant_conf->fast_div_bias = 0x3d; break; - case (0x03): /* A-B A+B */ + case 0x03: /* A-B A+B */ ant_conf->fast_div_bias = 0x1; break; - case (0x10): /* LNA2 A-B */ + case 0x10: /* LNA2 A-B */ ant_conf->fast_div_bias = 0x7; break; - case (0x12): /* LNA2 LNA1 */ + case 0x12: /* LNA2 LNA1 */ ant_conf->fast_div_bias = 0x2; break; - case (0x13): /* LNA2 A+B */ + case 0x13: /* LNA2 A+B */ ant_conf->fast_div_bias = 0x7; break; - case (0x20): /* LNA1 A-B */ + case 0x20: /* LNA1 A-B */ ant_conf->fast_div_bias = 0x6; break; - case (0x21): /* LNA1 LNA2 */ + case 0x21: /* LNA1 LNA2 */ ant_conf->fast_div_bias = 0x0; break; - case (0x23): /* LNA1 A+B */ + case 0x23: /* LNA1 A+B */ ant_conf->fast_div_bias = 0x6; break; - case (0x30): /* A+B A-B */ + case 0x30: /* A+B A-B */ ant_conf->fast_div_bias = 0x1; break; - case (0x31): /* A+B LNA2 */ + case 0x31: /* A+B LNA2 */ ant_conf->fast_div_bias = 0x3b; break; - case (0x32): /* A+B LNA1 */ + case 0x32: /* A+B LNA1 */ ant_conf->fast_div_bias = 0x3d; break; default: break; } + } else if (ant_conf->div_group == 1) { + /* Adjust the fast_div_bias based on main and alt_lna_conf */ + switch ((ant_conf->main_lna_conf << 4) | + ant_conf->alt_lna_conf) { + case 0x01: /* A-B LNA2 */ + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x02: /* A-B LNA1 */ + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x03: /* A-B A+B */ + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x10: /* LNA2 A-B */ + if (!(antcomb->scan) && + (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) + ant_conf->fast_div_bias = 0x3f; + else + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x12: /* LNA2 LNA1 */ + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x13: /* LNA2 A+B */ + if (!(antcomb->scan) && + (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) + ant_conf->fast_div_bias = 0x3f; + else + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x20: /* LNA1 A-B */ + if (!(antcomb->scan) && + (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) + ant_conf->fast_div_bias = 0x3f; + else + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x21: /* LNA1 LNA2 */ + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x23: /* LNA1 A+B */ + if (!(antcomb->scan) && + (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) + ant_conf->fast_div_bias = 0x3f; + else + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x30: /* A+B A-B */ + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x31: /* A+B LNA2 */ + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + case 0x32: /* A+B LNA1 */ + ant_conf->fast_div_bias = 0x1; + ant_conf->main_gaintb = 0; + ant_conf->alt_gaintb = 0; + break; + default: + break; + } } else if (ant_conf->div_group == 2) { /* Adjust the fast_div_bias based on main and alt_lna_conf */ switch ((ant_conf->main_lna_conf << 4) | ant_conf->alt_lna_conf) { - case (0x01): /* A-B LNA2 */ + case 0x01: /* A-B LNA2 */ ant_conf->fast_div_bias = 0x1; ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x02): /* A-B LNA1 */ + case 0x02: /* A-B LNA1 */ ant_conf->fast_div_bias = 0x1; ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x03): /* A-B A+B */ + case 0x03: /* A-B A+B */ ant_conf->fast_div_bias = 0x1; ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x10): /* LNA2 A-B */ + case 0x10: /* LNA2 A-B */ if (!(antcomb->scan) && (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) ant_conf->fast_div_bias = 0x1; @@ -1391,12 +1476,12 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf, ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x12): /* LNA2 LNA1 */ + case 0x12: /* LNA2 LNA1 */ ant_conf->fast_div_bias = 0x1; ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x13): /* LNA2 A+B */ + case 0x13: /* LNA2 A+B */ if (!(antcomb->scan) && (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) ant_conf->fast_div_bias = 0x1; @@ -1405,7 +1490,7 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf, ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x20): /* LNA1 A-B */ + case 0x20: /* LNA1 A-B */ if (!(antcomb->scan) && (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) ant_conf->fast_div_bias = 0x1; @@ -1414,12 +1499,12 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf, ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x21): /* LNA1 LNA2 */ + case 0x21: /* LNA1 LNA2 */ ant_conf->fast_div_bias = 0x1; ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x23): /* LNA1 A+B */ + case 0x23: /* LNA1 A+B */ if (!(antcomb->scan) && (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) ant_conf->fast_div_bias = 0x1; @@ -1428,17 +1513,17 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf, ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x30): /* A+B A-B */ + case 0x30: /* A+B A-B */ ant_conf->fast_div_bias = 0x1; ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x31): /* A+B LNA2 */ + case 0x31: /* A+B LNA2 */ ant_conf->fast_div_bias = 0x1; ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; break; - case (0x32): /* A+B LNA1 */ + case 0x32: /* A+B LNA1 */ ant_conf->fast_div_bias = 0x1; ant_conf->main_gaintb = 0; ant_conf->alt_gaintb = 0; @@ -1446,9 +1531,7 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf, default: break; } - } - } /* Antenna diversity and combining */ |