ath5k: Extend get_default_sifs/slot_time
* Extend get_default_sifs/slot_time to include timings for turbo
half and quarter rate modes.
* AR5210 code for now uses timings already on core clock units
instead of usecs so rename them (we 'll clean it up later).
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath5k/pcu.c b/drivers/net/wireless/ath/ath5k/pcu.c
index 2c2ea15..2118f70 100644
--- a/drivers/net/wireless/ath/ath5k/pcu.c
+++ b/drivers/net/wireless/ath/ath5k/pcu.c
@@ -43,14 +43,27 @@
static unsigned int ath5k_hw_get_default_slottime(struct ath5k_hw *ah)
{
struct ieee80211_channel *channel = ah->ah_current_channel;
+ unsigned int slot_time;
- if (channel->hw_value & CHANNEL_TURBO)
- return 6; /* both turbo modes */
+ switch (ah->ah_bwmode) {
+ case AR5K_BWMODE_40MHZ:
+ slot_time = AR5K_INIT_SLOT_TIME_TURBO;
+ break;
+ case AR5K_BWMODE_10MHZ:
+ slot_time = AR5K_INIT_SLOT_TIME_HALF_RATE;
+ break;
+ case AR5K_BWMODE_5MHZ:
+ slot_time = AR5K_INIT_SLOT_TIME_QUARTER_RATE;
+ break;
+ case AR5K_BWMODE_DEFAULT:
+ slot_time = AR5K_INIT_SLOT_TIME_DEFAULT;
+ default:
+ if (channel->hw_value & CHANNEL_CCK)
+ slot_time = AR5K_INIT_SLOT_TIME_B;
+ break;
+ }
- if (channel->hw_value & CHANNEL_CCK)
- return 20; /* 802.11b */
-
- return 9; /* 802.11 a/g */
+ return slot_time;
}
/**
@@ -58,17 +71,30 @@
*
* @ah: The &struct ath5k_hw
*/
-static unsigned int ath5k_hw_get_default_sifs(struct ath5k_hw *ah)
+unsigned int ath5k_hw_get_default_sifs(struct ath5k_hw *ah)
{
struct ieee80211_channel *channel = ah->ah_current_channel;
+ unsigned int sifs;
- if (channel->hw_value & CHANNEL_TURBO)
- return 8; /* both turbo modes */
+ switch (ah->ah_bwmode) {
+ case AR5K_BWMODE_40MHZ:
+ sifs = AR5K_INIT_SIFS_TURBO;
+ break;
+ case AR5K_BWMODE_10MHZ:
+ sifs = AR5K_INIT_SIFS_HALF_RATE;
+ break;
+ case AR5K_BWMODE_5MHZ:
+ sifs = AR5K_INIT_SIFS_QUARTER_RATE;
+ break;
+ case AR5K_BWMODE_DEFAULT:
+ sifs = AR5K_INIT_SIFS_DEFAULT_BG;
+ default:
+ if (channel->hw_value & CHANNEL_5GHZ)
+ sifs = AR5K_INIT_SIFS_DEFAULT_A;
+ break;
+ }
- if (channel->hw_value & CHANNEL_5GHZ)
- return 16; /* 802.11a */
-
- return 10; /* 802.11 b/g */
+ return sifs;
}
/**