ath5k: Implement antenna control

* Add code to support the various antenna scenarios supported by hw

 * For now hardcode the default scenario (single or dual omnis with
 tx/rx diversity working and tx antenna handled by session -hw keeps
 track on which antenna it got ack from each ap/station and maps each
 ap/station to one of the antennas-).

 Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
 Signed-off-by: Bob Copeland <me@bobcopeland.com>

Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/net/wireless/ath/ath5k/eeprom.h b/drivers/net/wireless/ath/ath5k/eeprom.h
index 46e4d22591f6..64be73a5edae 100644
--- a/drivers/net/wireless/ath/ath5k/eeprom.h
+++ b/drivers/net/wireless/ath/ath5k/eeprom.h
@@ -240,11 +240,11 @@ enum ath5k_eeprom_freq_bands{
 #define AR5K_EEPROM_READ_HDR(_o, _v)                                    \
         AR5K_EEPROM_READ(_o, ah->ah_capabilities.cap_eeprom._v);        \
 
-enum ath5k_ant_setting {
-        AR5K_ANT_VARIABLE       = 0,    /* variable by programming */
-        AR5K_ANT_FIXED_A        = 1,    /* fixed to 11a frequencies */
-        AR5K_ANT_FIXED_B        = 2,    /* fixed to 11b frequencies */
-        AR5K_ANT_MAX            = 3,
+enum ath5k_ant_table {
+        AR5K_ANT_CTL            = 0,    /* Idle switch table settings */
+        AR5K_ANT_SWTABLE_A      = 1,    /* Switch table for antenna A */
+        AR5K_ANT_SWTABLE_B      = 2,    /* Switch table for antenna B */
+        AR5K_ANT_MAX,
 };
 
 enum ath5k_ctl_mode {
@@ -461,6 +461,7 @@ struct ath5k_eeprom_info {
         /* Spur mitigation data (fbin values for spur channels) */
         u16     ee_spur_chans[AR5K_EEPROM_N_SPUR_CHANS][AR5K_EEPROM_N_FREQ_BANDS];
 
+        /* Antenna raw switch tables */
         u32     ee_antenna[AR5K_EEPROM_N_MODES][AR5K_ANT_MAX];
 };