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ar9170: introduce functions for MAC programming

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This patch introduces 3 new function which are used to update
the MAC state, whenever needed... e.g: after a band switch.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Christian Lamparter 2009-06-01 21:42:01 +02:00 committed by John W. Linville
parent d7433390e4
commit 29ceff5d58
3 changed files with 81 additions and 29 deletions
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3
drivers/net/wireless/ath/ar9170/ar9170.h
View File

@ -215,6 +215,9 @@ int ar9170_update_multicast(struct ar9170 *ar);
int ar9170_update_frame_filter(struct ar9170 *ar);
int ar9170_set_operating_mode(struct ar9170 *ar);
int ar9170_set_beacon_timers(struct ar9170 *ar);
int ar9170_set_dyn_sifs_ack(struct ar9170 *ar);
int ar9170_set_slot_time(struct ar9170 *ar);
int ar9170_set_basic_rates(struct ar9170 *ar);
int ar9170_set_hwretry_limit(struct ar9170 *ar, u32 max_retry);
int ar9170_update_beacon(struct ar9170 *ar);
void ar9170_new_beacon(struct work_struct *work);

49
drivers/net/wireless/ath/ar9170/mac.c
View File

@ -38,6 +38,55 @@
#include "ar9170.h"
#include "cmd.h"
int ar9170_set_dyn_sifs_ack(struct ar9170 *ar)
{
u32 val;
if (conf_is_ht40(&ar->hw->conf))
val = 0x010a;
else {
if (ar->hw->conf.channel->band == IEEE80211_BAND_2GHZ)
val = 0x105;
else
val = 0x104;
}
return ar9170_write_reg(ar, AR9170_MAC_REG_DYNAMIC_SIFS_ACK, val);
}
int ar9170_set_slot_time(struct ar9170 *ar)
{
u32 slottime = 20;
if (!ar->vif)
return 0;
if ((ar->hw->conf.channel->band == IEEE80211_BAND_5GHZ) ||
ar->vif->bss_conf.use_short_slot)
slottime = 9;
return ar9170_write_reg(ar, AR9170_MAC_REG_SLOT_TIME, slottime << 10);
}
int ar9170_set_basic_rates(struct ar9170 *ar)
{
u8 cck, ofdm;
if (!ar->vif)
return 0;
ofdm = ar->vif->bss_conf.basic_rates >> 4;
/* FIXME: is still necessary? */
if (ar->hw->conf.channel->band == IEEE80211_BAND_5GHZ)
cck = 0;
else
cck = ar->vif->bss_conf.basic_rates & 0xf;
return ar9170_write_reg(ar, AR9170_MAC_REG_BASIC_RATE,
ofdm << 8 | cck);
}
int ar9170_set_qos(struct ar9170 *ar)
{
ar9170_regwrite_begin(ar);

58
drivers/net/wireless/ath/ar9170/main.c
View File

@ -1344,15 +1344,21 @@ static int ar9170_op_config(struct ieee80211_hw *hw, u32 changed)
}
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
/* adjust slot time for 5 GHz */
err = ar9170_set_slot_time(ar);
if (err)
goto out;
err = ar9170_set_dyn_sifs_ack(ar);
if (err)
goto out;
err = ar9170_set_channel(ar, hw->conf.channel,
AR9170_RFI_NONE,
nl80211_to_ar9170(hw->conf.channel_type));
if (err)
goto out;
/* adjust slot time for 5 GHz */
if (hw->conf.channel->band == IEEE80211_BAND_5GHZ)
err = ar9170_write_reg(ar, AR9170_MAC_REG_SLOT_TIME,
9 << 10);
}
out:
@ -1464,15 +1470,19 @@ static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw,
if (changed & BSS_CHANGED_BSSID) {
memcpy(ar->bssid, bss_conf->bssid, ETH_ALEN);
err = ar9170_set_operating_mode(ar);
if (err)
goto out;
}
if (changed & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED)) {
err = ar9170_update_beacon(ar);
if (!err)
ar9170_set_beacon_timers(ar);
}
if (err)
goto out;
ar9170_regwrite_begin(ar);
err = ar9170_set_beacon_timers(ar);
if (err)
goto out;
}
if (changed & BSS_CHANGED_ASSOC) {
ar->state = bss_conf->assoc ? AR9170_ASSOCIATED : ar->state;
@ -1483,8 +1493,11 @@ static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw,
#endif /* CONFIG_AR9170_LEDS */
}
if (changed & BSS_CHANGED_BEACON_INT)
if (changed & BSS_CHANGED_BEACON_INT) {
err = ar9170_set_beacon_timers(ar);
if (err)
goto out;
}
if (changed & BSS_CHANGED_HT) {
/* TODO */
@ -1492,31 +1505,18 @@ static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw,
}
if (changed & BSS_CHANGED_ERP_SLOT) {
u32 slottime = 20;
if (bss_conf->use_short_slot)
slottime = 9;
ar9170_regwrite(AR9170_MAC_REG_SLOT_TIME, slottime << 10);
err = ar9170_set_slot_time(ar);
if (err)
goto out;
}
if (changed & BSS_CHANGED_BASIC_RATES) {
u32 cck, ofdm;
if (hw->conf.channel->band == IEEE80211_BAND_5GHZ) {
ofdm = bss_conf->basic_rates;
cck = 0;
} else {
/* four cck rates */
cck = bss_conf->basic_rates & 0xf;
ofdm = bss_conf->basic_rates >> 4;
}
ar9170_regwrite(AR9170_MAC_REG_BASIC_RATE,
ofdm << 8 | cck);
err = ar9170_set_basic_rates(ar);
if (err)
goto out;
}
ar9170_regwrite_finish();
err = ar9170_regwrite_result();
out:
mutex_unlock(&ar->mutex);
}