In the config() callback function the fields radio_enabled and
the change flag IEEE80211_CONF_CHANGE_RADIO_ENABLED have been
deprecated. This removes the usage of those fields by improving
antenna change detection in the antenna configuration function.
Signed-off-by: Ivo van Doorn <IvDoorn@xxxxxxxxx>
---
drivers/net/wireless/rt2x00/rt2x00config.c | 22 ++++++++---
drivers/net/wireless/rt2x00/rt2x00dev.c | 7 ++++
drivers/net/wireless/rt2x00/rt2x00link.c | 12 ++++--
drivers/net/wireless/rt2x00/rt2x00mac.c | 54 ++++++++++------------------
4 files changed, 50 insertions(+), 45 deletions(-)
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index 3845316..3501788 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -124,8 +124,9 @@ enum antenna rt2x00lib_config_antenna_check(enum antenna current_ant,
}
void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
- struct antenna_setup ant)
+ struct antenna_setup config)
{
+ struct link_ant *ant = &rt2x00dev->link.ant;
struct antenna_setup *def = &rt2x00dev->default_ant;
struct antenna_setup *active = &rt2x00dev->link.ant.active;
@@ -134,14 +135,23 @@ void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
* ANTENNA_SW_DIVERSITY state to the driver.
* If that happens, fallback to hardware defaults,
* or our own default.
+ * If diversity handling is active for a particular antenna,
+ * we shouldn't overwrite that antenna.
* The calls to rt2x00lib_config_antenna_check()
* might have caused that we restore back to the already
* active setting. If that has happened we can quit.
*/
- ant.rx = rt2x00lib_config_antenna_check(ant.rx, def->rx);
- ant.tx = rt2x00lib_config_antenna_check(ant.tx, def->tx);
+ if (!(ant->flags & ANTENNA_RX_DIVERSITY))
+ config.rx = rt2x00lib_config_antenna_check(config.rx, def->rx);
+ else
+ config.rx = active->rx;
- if (ant.rx == active->rx && ant.tx == active->tx)
+ if (!(ant->flags & ANTENNA_TX_DIVERSITY))
+ config.tx = rt2x00lib_config_antenna_check(config.tx, def->tx);
+ else
+ config.tx = active->tx;
+
+ if (config.rx == active->rx && config.tx == active->tx)
return;
/*
@@ -156,11 +166,11 @@ void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
* The latter is required since we need to recalibrate the
* noise-sensitivity ratio for the new setup.
*/
- rt2x00dev->ops->lib->config_ant(rt2x00dev, &ant);
+ rt2x00dev->ops->lib->config_ant(rt2x00dev, &config);
rt2x00link_reset_tuner(rt2x00dev, true);
- memcpy(active, &ant, sizeof(ant));
+ memcpy(active, &config, sizeof(config));
if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index db54fcc..e0348cc 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -785,6 +785,13 @@ int rt2x00lib_start(struct rt2x00_dev *rt2x00dev)
rt2x00dev->intf_sta_count = 0;
rt2x00dev->intf_associated = 0;
+ /* Enable the radio */
+ retval = rt2x00lib_enable_radio(rt2x00dev);
+ if (retval) {
+ rt2x00queue_uninitialize(rt2x00dev);
+ return retval;
+ }
+
set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags);
return 0;
diff --git a/drivers/net/wireless/rt2x00/rt2x00link.c b/drivers/net/wireless/rt2x00/rt2x00link.c
index 9178316..fe951dc 100644
--- a/drivers/net/wireless/rt2x00/rt2x00link.c
+++ b/drivers/net/wireless/rt2x00/rt2x00link.c
@@ -219,6 +219,7 @@ static void rt2x00lib_antenna_diversity_eval(struct rt2x00_dev *rt2x00dev)
static void rt2x00lib_antenna_diversity(struct rt2x00_dev *rt2x00dev)
{
struct link_ant *ant = &rt2x00dev->link.ant;
+ unsigned int flags = ant->flags;
/*
* Determine if software diversity is enabled for
@@ -226,13 +227,13 @@ static void rt2x00lib_antenna_diversity(struct rt2x00_dev *rt2x00dev)
* Always perform this check since within the link
* tuner interval the configuration might have changed.
*/
- ant->flags &= ~ANTENNA_RX_DIVERSITY;
- ant->flags &= ~ANTENNA_TX_DIVERSITY;
+ flags &= ~ANTENNA_RX_DIVERSITY;
+ flags &= ~ANTENNA_TX_DIVERSITY;
if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
- ant->flags |= ANTENNA_RX_DIVERSITY;
+ flags |= ANTENNA_RX_DIVERSITY;
if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
- ant->flags |= ANTENNA_TX_DIVERSITY;
+ flags |= ANTENNA_TX_DIVERSITY;
if (!(ant->flags & ANTENNA_RX_DIVERSITY) &&
!(ant->flags & ANTENNA_TX_DIVERSITY)) {
@@ -240,6 +241,9 @@ static void rt2x00lib_antenna_diversity(struct rt2x00_dev *rt2x00dev)
return;
}
+ /* Update flags */
+ ant->flags = flags;
+
/*
* If we have only sampled the data over the last period
* we should now harvest the data. Otherwise just evaluate
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 81febdf..4164fce 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -338,7 +338,6 @@ int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
struct ieee80211_conf *conf = &hw->conf;
- int status;
/*
* mac80211 might be calling this function while we are trying
@@ -348,44 +347,29 @@ int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
return 0;
/*
- * Only change device state when the radio is enabled. It does not
- * matter what parameters we have configured when the radio is disabled
- * because we won't be able to send or receive anyway. Also note that
- * some configuration parameters (e.g. channel and antenna values) can
- * only be set when the radio is enabled.
+ * Some configuration parameters (e.g. channel and antenna values) can
+ * only be set when the radio is enabled, but do require the RX to
+ * be off.
*/
- if (conf->radio_enabled) {
- /* For programming the values, we have to turn RX off */
- rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
+ rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
- /* Enable the radio */
- status = rt2x00lib_enable_radio(rt2x00dev);
- if (unlikely(status))
- return status;
+ /*
+ * When we've just turned on the radio, we want to reprogram
+ * everything to ensure a consistent state
+ */
+ rt2x00lib_config(rt2x00dev, conf, changed);
- /*
- * When we've just turned on the radio, we want to reprogram
- * everything to ensure a consistent state
- */
- rt2x00lib_config(rt2x00dev, conf, changed);
+ /*
+ * After the radio has been enabled we need to configure
+ * the antenna to the default settings. rt2x00lib_config_antenna()
+ * should determine if any action should be taken based on
+ * checking if diversity has been enabled or no antenna changes
+ * have been made since the last configuration change.
+ */
+ rt2x00lib_config_antenna(rt2x00dev, rt2x00dev->default_ant);
- /*
- * The radio was enabled, configure the antenna to the
- * default settings, the link tuner will later start
- * continue configuring the antenna based on the software
- * diversity. But for non-diversity configurations, we need
- * to have configured the correct state now.
- */
- if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED)
- rt2x00lib_config_antenna(rt2x00dev,
- rt2x00dev->default_ant);
-
- /* Turn RX back on */
- rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
- } else {
- /* Disable the radio */
- rt2x00lib_disable_radio(rt2x00dev);
- }
+ /* Turn RX back on */
+ rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
return 0;
}
--
1.6.3.3
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