/*
- Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
+ Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
<http://rt2x00.serialmonkey.com>
This program is free software; you can redistribute it and/or modify
#include "rt2x00.h"
#include "rt2x00lib.h"
-#include "rt2x00dump.h"
-
-/*
- * Link tuning handlers
- */
-void rt2x00lib_reset_link_tuner(struct rt2x00_dev *rt2x00dev)
-{
- if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
- return;
-
- /*
- * Reset link information.
- * Both the currently active vgc level as well as
- * the link tuner counter should be reset. Resetting
- * the counter is important for devices where the
- * device should only perform link tuning during the
- * first minute after being enabled.
- */
- rt2x00dev->link.count = 0;
- rt2x00dev->link.vgc_level = 0;
-
- /*
- * Reset the link tuner.
- */
- rt2x00dev->ops->lib->reset_tuner(rt2x00dev);
-}
-
-static void rt2x00lib_start_link_tuner(struct rt2x00_dev *rt2x00dev)
-{
- /*
- * Clear all (possibly) pre-existing quality statistics.
- */
- memset(&rt2x00dev->link.qual, 0, sizeof(rt2x00dev->link.qual));
-
- /*
- * The RX and TX percentage should start at 50%
- * this will assure we will get at least get some
- * decent value when the link tuner starts.
- * The value will be dropped and overwritten with
- * the correct (measured )value anyway during the
- * first run of the link tuner.
- */
- rt2x00dev->link.qual.rx_percentage = 50;
- rt2x00dev->link.qual.tx_percentage = 50;
-
- rt2x00lib_reset_link_tuner(rt2x00dev);
-
- queue_delayed_work(rt2x00dev->hw->workqueue,
- &rt2x00dev->link.work, LINK_TUNE_INTERVAL);
-}
-
-static void rt2x00lib_stop_link_tuner(struct rt2x00_dev *rt2x00dev)
-{
- cancel_delayed_work_sync(&rt2x00dev->link.work);
-}
/*
* Radio control handlers.
* Don't enable the radio twice.
* And check if the hardware button has been disabled.
*/
- if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
- test_bit(DEVICE_DISABLED_RADIO_HW, &rt2x00dev->flags))
+ if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
return 0;
/*
* Initialize all data queues.
*/
- rt2x00queue_init_rx(rt2x00dev);
- rt2x00queue_init_tx(rt2x00dev);
+ rt2x00queue_init_queues(rt2x00dev);
/*
* Enable radio.
if (status)
return status;
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_ON);
+
rt2x00leds_led_radio(rt2x00dev, true);
rt2x00led_led_activity(rt2x00dev, true);
- __set_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags);
+ set_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags);
/*
* Enable RX.
/*
* Start the TX queues.
*/
- ieee80211_start_queues(rt2x00dev->hw);
+ ieee80211_wake_queues(rt2x00dev->hw);
return 0;
}
void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev)
{
- if (!__test_and_clear_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+ if (!test_and_clear_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
return;
/*
- * Stop all scheduled work.
- */
- if (work_pending(&rt2x00dev->intf_work))
- cancel_work_sync(&rt2x00dev->intf_work);
- if (work_pending(&rt2x00dev->filter_work))
- cancel_work_sync(&rt2x00dev->filter_work);
-
- /*
- * Stop the TX queues.
+ * Stop the TX queues in mac80211.
*/
ieee80211_stop_queues(rt2x00dev->hw);
+ rt2x00queue_stop_queues(rt2x00dev);
/*
* Disable RX.
* Disable radio.
*/
rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_OFF);
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF);
rt2x00led_led_activity(rt2x00dev, false);
rt2x00leds_led_radio(rt2x00dev, false);
}
* When we are disabling the RX, we should also stop the link tuner.
*/
if (state == STATE_RADIO_RX_OFF)
- rt2x00lib_stop_link_tuner(rt2x00dev);
+ rt2x00link_stop_tuner(rt2x00dev);
rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
/*
* When we are enabling the RX, we should also start the link tuner.
*/
- if (state == STATE_RADIO_RX_ON &&
- (rt2x00dev->intf_ap_count || rt2x00dev->intf_sta_count))
- rt2x00lib_start_link_tuner(rt2x00dev);
-}
-
-static void rt2x00lib_evaluate_antenna_sample(struct rt2x00_dev *rt2x00dev)
-{
- enum antenna rx = rt2x00dev->link.ant.active.rx;
- enum antenna tx = rt2x00dev->link.ant.active.tx;
- int sample_a =
- rt2x00_get_link_ant_rssi_history(&rt2x00dev->link, ANTENNA_A);
- int sample_b =
- rt2x00_get_link_ant_rssi_history(&rt2x00dev->link, ANTENNA_B);
-
- /*
- * We are done sampling. Now we should evaluate the results.
- */
- rt2x00dev->link.ant.flags &= ~ANTENNA_MODE_SAMPLE;
-
- /*
- * During the last period we have sampled the RSSI
- * from both antenna's. It now is time to determine
- * which antenna demonstrated the best performance.
- * When we are already on the antenna with the best
- * performance, then there really is nothing for us
- * left to do.
- */
- if (sample_a == sample_b)
- return;
-
- if (rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY)
- rx = (sample_a > sample_b) ? ANTENNA_A : ANTENNA_B;
-
- if (rt2x00dev->link.ant.flags & ANTENNA_TX_DIVERSITY)
- tx = (sample_a > sample_b) ? ANTENNA_A : ANTENNA_B;
-
- rt2x00lib_config_antenna(rt2x00dev, rx, tx);
-}
-
-static void rt2x00lib_evaluate_antenna_eval(struct rt2x00_dev *rt2x00dev)
-{
- enum antenna rx = rt2x00dev->link.ant.active.rx;
- enum antenna tx = rt2x00dev->link.ant.active.tx;
- int rssi_curr = rt2x00_get_link_ant_rssi(&rt2x00dev->link);
- int rssi_old = rt2x00_update_ant_rssi(&rt2x00dev->link, rssi_curr);
-
- /*
- * Legacy driver indicates that we should swap antenna's
- * when the difference in RSSI is greater that 5. This
- * also should be done when the RSSI was actually better
- * then the previous sample.
- * When the difference exceeds the threshold we should
- * sample the rssi from the other antenna to make a valid
- * comparison between the 2 antennas.
- */
- if (abs(rssi_curr - rssi_old) < 5)
- return;
-
- rt2x00dev->link.ant.flags |= ANTENNA_MODE_SAMPLE;
-
- if (rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY)
- rx = (rx == ANTENNA_A) ? ANTENNA_B : ANTENNA_A;
-
- if (rt2x00dev->link.ant.flags & ANTENNA_TX_DIVERSITY)
- tx = (tx == ANTENNA_A) ? ANTENNA_B : ANTENNA_A;
-
- rt2x00lib_config_antenna(rt2x00dev, rx, tx);
-}
-
-static void rt2x00lib_evaluate_antenna(struct rt2x00_dev *rt2x00dev)
-{
- /*
- * Determine if software diversity is enabled for
- * either the TX or RX antenna (or both).
- * Always perform this check since within the link
- * tuner interval the configuration might have changed.
- */
- rt2x00dev->link.ant.flags &= ~ANTENNA_RX_DIVERSITY;
- rt2x00dev->link.ant.flags &= ~ANTENNA_TX_DIVERSITY;
-
- if (rt2x00dev->hw->conf.antenna_sel_rx == 0 &&
- rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
- rt2x00dev->link.ant.flags |= ANTENNA_RX_DIVERSITY;
- if (rt2x00dev->hw->conf.antenna_sel_tx == 0 &&
- rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
- rt2x00dev->link.ant.flags |= ANTENNA_TX_DIVERSITY;
-
- if (!(rt2x00dev->link.ant.flags & ANTENNA_RX_DIVERSITY) &&
- !(rt2x00dev->link.ant.flags & ANTENNA_TX_DIVERSITY)) {
- rt2x00dev->link.ant.flags = 0;
- return;
- }
-
- /*
- * If we have only sampled the data over the last period
- * we should now harvest the data. Otherwise just evaluate
- * the data. The latter should only be performed once
- * every 2 seconds.
- */
- if (rt2x00dev->link.ant.flags & ANTENNA_MODE_SAMPLE)
- rt2x00lib_evaluate_antenna_sample(rt2x00dev);
- else if (rt2x00dev->link.count & 1)
- rt2x00lib_evaluate_antenna_eval(rt2x00dev);
-}
-
-static void rt2x00lib_update_link_stats(struct link *link, int rssi)
-{
- int avg_rssi = rssi;
-
- /*
- * Update global RSSI
- */
- if (link->qual.avg_rssi)
- avg_rssi = MOVING_AVERAGE(link->qual.avg_rssi, rssi, 8);
- link->qual.avg_rssi = avg_rssi;
-
- /*
- * Update antenna RSSI
- */
- if (link->ant.rssi_ant)
- rssi = MOVING_AVERAGE(link->ant.rssi_ant, rssi, 8);
- link->ant.rssi_ant = rssi;
-}
-
-static void rt2x00lib_precalculate_link_signal(struct link_qual *qual)
-{
- if (qual->rx_failed || qual->rx_success)
- qual->rx_percentage =
- (qual->rx_success * 100) /
- (qual->rx_failed + qual->rx_success);
- else
- qual->rx_percentage = 50;
-
- if (qual->tx_failed || qual->tx_success)
- qual->tx_percentage =
- (qual->tx_success * 100) /
- (qual->tx_failed + qual->tx_success);
- else
- qual->tx_percentage = 50;
-
- qual->rx_success = 0;
- qual->rx_failed = 0;
- qual->tx_success = 0;
- qual->tx_failed = 0;
-}
-
-static int rt2x00lib_calculate_link_signal(struct rt2x00_dev *rt2x00dev,
- int rssi)
-{
- int rssi_percentage = 0;
- int signal;
-
- /*
- * We need a positive value for the RSSI.
- */
- if (rssi < 0)
- rssi += rt2x00dev->rssi_offset;
-
- /*
- * Calculate the different percentages,
- * which will be used for the signal.
- */
- if (rt2x00dev->rssi_offset)
- rssi_percentage = (rssi * 100) / rt2x00dev->rssi_offset;
-
- /*
- * Add the individual percentages and use the WEIGHT
- * defines to calculate the current link signal.
- */
- signal = ((WEIGHT_RSSI * rssi_percentage) +
- (WEIGHT_TX * rt2x00dev->link.qual.tx_percentage) +
- (WEIGHT_RX * rt2x00dev->link.qual.rx_percentage)) / 100;
-
- return (signal > 100) ? 100 : signal;
-}
-
-static void rt2x00lib_link_tuner(struct work_struct *work)
-{
- struct rt2x00_dev *rt2x00dev =
- container_of(work, struct rt2x00_dev, link.work.work);
-
- /*
- * When the radio is shutting down we should
- * immediately cease all link tuning.
- */
- if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
- return;
-
- /*
- * Update statistics.
- */
- rt2x00dev->ops->lib->link_stats(rt2x00dev, &rt2x00dev->link.qual);
- rt2x00dev->low_level_stats.dot11FCSErrorCount +=
- rt2x00dev->link.qual.rx_failed;
-
- /*
- * Only perform the link tuning when Link tuning
- * has been enabled (This could have been disabled from the EEPROM).
- */
- if (!test_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags))
- rt2x00dev->ops->lib->link_tuner(rt2x00dev);
-
- /*
- * Precalculate a portion of the link signal which is
- * in based on the tx/rx success/failure counters.
- */
- rt2x00lib_precalculate_link_signal(&rt2x00dev->link.qual);
-
- /*
- * Send a signal to the led to update the led signal strength.
- */
- rt2x00leds_led_quality(rt2x00dev, rt2x00dev->link.qual.avg_rssi);
-
- /*
- * Evaluate antenna setup, make this the last step since this could
- * possibly reset some statistics.
- */
- rt2x00lib_evaluate_antenna(rt2x00dev);
-
- /*
- * Increase tuner counter, and reschedule the next link tuner run.
- */
- rt2x00dev->link.count++;
- queue_delayed_work(rt2x00dev->hw->workqueue, &rt2x00dev->link.work,
- LINK_TUNE_INTERVAL);
-}
-
-static void rt2x00lib_packetfilter_scheduled(struct work_struct *work)
-{
- struct rt2x00_dev *rt2x00dev =
- container_of(work, struct rt2x00_dev, filter_work);
-
- rt2x00dev->ops->lib->config_filter(rt2x00dev, rt2x00dev->packet_filter);
+ if (state == STATE_RADIO_RX_ON)
+ rt2x00link_start_tuner(rt2x00dev);
}
static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac,
{
struct rt2x00_dev *rt2x00dev = data;
struct rt2x00_intf *intf = vif_to_intf(vif);
- struct sk_buff *skb;
- struct ieee80211_tx_control control;
- struct ieee80211_bss_conf conf;
int delayed_flags;
/*
*/
spin_lock(&intf->lock);
- memcpy(&conf, &intf->conf, sizeof(conf));
delayed_flags = intf->delayed_flags;
intf->delayed_flags = 0;
spin_unlock(&intf->lock);
- if (delayed_flags & DELAYED_UPDATE_BEACON) {
- skb = ieee80211_beacon_get(rt2x00dev->hw, vif, &control);
- if (skb && rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw,
- skb, &control))
- dev_kfree_skb(skb);
- }
-
- if (delayed_flags & DELAYED_CONFIG_ERP)
- rt2x00lib_config_erp(rt2x00dev, intf, &intf->conf);
+ /*
+ * It is possible the radio was disabled while the work had been
+ * scheduled. If that happens we should return here immediately,
+ * note that in the spinlock protected area above the delayed_flags
+ * have been cleared correctly.
+ */
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+ return;
- if (delayed_flags & DELAYED_LED_ASSOC)
- rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated);
+ if (delayed_flags & DELAYED_UPDATE_BEACON)
+ rt2x00queue_update_beacon(rt2x00dev, vif, true);
}
static void rt2x00lib_intf_scheduled(struct work_struct *work)
{
struct rt2x00_intf *intf = vif_to_intf(vif);
- if (vif->type != IEEE80211_IF_TYPE_AP &&
- vif->type != IEEE80211_IF_TYPE_IBSS)
+ if (vif->type != NL80211_IFTYPE_AP &&
+ vif->type != NL80211_IFTYPE_ADHOC &&
+ vif->type != NL80211_IFTYPE_MESH_POINT &&
+ vif->type != NL80211_IFTYPE_WDS)
return;
spin_lock(&intf->lock);
void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev)
{
- if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
return;
- ieee80211_iterate_active_interfaces(rt2x00dev->hw,
- rt2x00lib_beacondone_iter,
- rt2x00dev);
+ ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw,
+ rt2x00lib_beacondone_iter,
+ rt2x00dev);
- queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->intf_work);
+ ieee80211_queue_work(rt2x00dev->hw, &rt2x00dev->intf_work);
}
EXPORT_SYMBOL_GPL(rt2x00lib_beacondone);
struct txdone_entry_desc *txdesc)
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
- struct skb_frame_desc *skbdesc;
- struct ieee80211_tx_status tx_status;
- int success = !!(txdesc->status == TX_SUCCESS ||
- txdesc->status == TX_SUCCESS_RETRY);
- int fail = !!(txdesc->status == TX_FAIL_RETRY ||
- txdesc->status == TX_FAIL_INVALID ||
- txdesc->status == TX_FAIL_OTHER);
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
+ struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
+ enum data_queue_qid qid = skb_get_queue_mapping(entry->skb);
+ unsigned int header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
+ u8 rate_idx, rate_flags, retry_rates;
+ u8 skbdesc_flags = skbdesc->flags;
+ unsigned int i;
+ bool success;
+
+ /*
+ * Unmap the skb.
+ */
+ rt2x00queue_unmap_skb(rt2x00dev, entry->skb);
+
+ /*
+ * Remove L2 padding which was added during
+ */
+ if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags))
+ rt2x00queue_remove_l2pad(entry->skb, header_length);
+
+ /*
+ * If the IV/EIV data was stripped from the frame before it was
+ * passed to the hardware, we should now reinsert it again because
+ * mac80211 will expect the the same data to be present it the
+ * frame as it was passed to us.
+ */
+ if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags))
+ rt2x00crypto_tx_insert_iv(entry->skb, header_length);
+
+ /*
+ * Send frame to debugfs immediately, after this call is completed
+ * we are going to overwrite the skb->cb array.
+ */
+ rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TXDONE, entry->skb);
+
+ /*
+ * Determine if the frame has been successfully transmitted.
+ */
+ success =
+ test_bit(TXDONE_SUCCESS, &txdesc->flags) ||
+ test_bit(TXDONE_UNKNOWN, &txdesc->flags) ||
+ test_bit(TXDONE_FALLBACK, &txdesc->flags);
/*
* Update TX statistics.
*/
rt2x00dev->link.qual.tx_success += success;
- rt2x00dev->link.qual.tx_failed += txdesc->retry + fail;
+ rt2x00dev->link.qual.tx_failed += !success;
+
+ rate_idx = skbdesc->tx_rate_idx;
+ rate_flags = skbdesc->tx_rate_flags;
+ retry_rates = test_bit(TXDONE_FALLBACK, &txdesc->flags) ?
+ (txdesc->retry + 1) : 1;
/*
* Initialize TX status
*/
- tx_status.flags = 0;
- tx_status.ack_signal = 0;
- tx_status.excessive_retries = (txdesc->status == TX_FAIL_RETRY);
- tx_status.retry_count = txdesc->retry;
- memcpy(&tx_status.control, txdesc->control, sizeof(*txdesc->control));
+ memset(&tx_info->status, 0, sizeof(tx_info->status));
+ tx_info->status.ack_signal = 0;
- if (!(tx_status.control.flags & IEEE80211_TXCTL_NO_ACK)) {
+ /*
+ * Frame was send with retries, hardware tried
+ * different rates to send out the frame, at each
+ * retry it lowered the rate 1 step.
+ */
+ for (i = 0; i < retry_rates && i < IEEE80211_TX_MAX_RATES; i++) {
+ tx_info->status.rates[i].idx = rate_idx - i;
+ tx_info->status.rates[i].flags = rate_flags;
+ tx_info->status.rates[i].count = 1;
+ }
+ if (i < (IEEE80211_TX_MAX_RATES - 1))
+ tx_info->status.rates[i].idx = -1; /* terminate */
+
+ if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) {
if (success)
- tx_status.flags |= IEEE80211_TX_STATUS_ACK;
+ tx_info->flags |= IEEE80211_TX_STAT_ACK;
else
rt2x00dev->low_level_stats.dot11ACKFailureCount++;
}
- tx_status.queue_length = entry->queue->limit;
- tx_status.queue_number = tx_status.control.queue;
-
- if (tx_status.control.flags & IEEE80211_TXCTL_USE_RTS_CTS) {
+ if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
if (success)
rt2x00dev->low_level_stats.dot11RTSSuccessCount++;
else
}
/*
- * Send the tx_status to debugfs. Only send the status report
- * to mac80211 when the frame originated from there. If this was
- * a extra frame coming through a mac80211 library call (RTS/CTS)
- * then we should not send the status report back.
- * If send to mac80211, mac80211 will clean up the skb structure,
- * otherwise we have to do it ourself.
+ * Only send the status report to mac80211 when it's a frame
+ * that originated in mac80211. If this was a extra frame coming
+ * through a mac80211 library call (RTS/CTS) then we should not
+ * send the status report back.
*/
- skbdesc = get_skb_frame_desc(entry->skb);
- skbdesc->frame_type = DUMP_FRAME_TXDONE;
-
- rt2x00debug_dump_frame(rt2x00dev, entry->skb);
-
- if (!(skbdesc->flags & FRAME_DESC_DRIVER_GENERATED))
- ieee80211_tx_status_irqsafe(rt2x00dev->hw,
- entry->skb, &tx_status);
+ if (!(skbdesc_flags & SKBDESC_NOT_MAC80211))
+ ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb);
else
- dev_kfree_skb(entry->skb);
+ dev_kfree_skb_irq(entry->skb);
+
+ /*
+ * Make this entry available for reuse.
+ */
entry->skb = NULL;
+ entry->flags = 0;
+
+ rt2x00dev->ops->lib->clear_entry(entry);
+
+ clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
+ rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE);
+
+ /*
+ * If the data queue was below the threshold before the txdone
+ * handler we must make sure the packet queue in the mac80211 stack
+ * is reenabled when the txdone handler has finished.
+ */
+ if (!rt2x00queue_threshold(entry->queue))
+ ieee80211_wake_queue(rt2x00dev->hw, qid);
}
EXPORT_SYMBOL_GPL(rt2x00lib_txdone);
-void rt2x00lib_rxdone(struct queue_entry *entry,
- struct rxdone_entry_desc *rxdesc)
+static int rt2x00lib_rxdone_read_signal(struct rt2x00_dev *rt2x00dev,
+ struct rxdone_entry_desc *rxdesc)
{
- struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
- struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status;
struct ieee80211_supported_band *sband;
- struct ieee80211_hdr *hdr;
const struct rt2x00_rate *rate;
unsigned int i;
- int idx = -1;
- u16 fc;
+ int signal;
+ int type;
/*
- * Update RX statistics.
+ * For non-HT rates the MCS value needs to contain the
+ * actually used rate modulation (CCK or OFDM).
*/
+ if (rxdesc->dev_flags & RXDONE_SIGNAL_MCS)
+ signal = RATE_MCS(rxdesc->rate_mode, rxdesc->signal);
+ else
+ signal = rxdesc->signal;
+
+ type = (rxdesc->dev_flags & RXDONE_SIGNAL_MASK);
+
sband = &rt2x00dev->bands[rt2x00dev->curr_band];
for (i = 0; i < sband->n_bitrates; i++) {
rate = rt2x00_get_rate(sband->bitrates[i].hw_value);
- if (((rxdesc->dev_flags & RXDONE_SIGNAL_PLCP) &&
- (rate->plcp == rxdesc->signal)) ||
- (!(rxdesc->dev_flags & RXDONE_SIGNAL_PLCP) &&
- (rate->bitrate == rxdesc->signal))) {
- idx = i;
- break;
+ if (((type == RXDONE_SIGNAL_PLCP) &&
+ (rate->plcp == signal)) ||
+ ((type == RXDONE_SIGNAL_BITRATE) &&
+ (rate->bitrate == signal)) ||
+ ((type == RXDONE_SIGNAL_MCS) &&
+ (rate->mcs == signal))) {
+ return i;
}
}
- if (idx < 0) {
- WARNING(rt2x00dev, "Frame received with unrecognized signal,"
- "signal=0x%.2x, plcp=%d.\n", rxdesc->signal,
- !!(rxdesc->dev_flags & RXDONE_SIGNAL_PLCP));
- idx = 0;
- }
+ WARNING(rt2x00dev, "Frame received with unrecognized signal, "
+ "signal=0x%.4x, type=%d.\n", signal, type);
+ return 0;
+}
+void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
+ struct queue_entry *entry)
+{
+ struct rxdone_entry_desc rxdesc;
+ struct sk_buff *skb;
+ struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status;
+ unsigned int header_length;
+ int rate_idx;
/*
- * Only update link status if this is a beacon frame carrying our bssid.
+ * Allocate a new sk_buffer. If no new buffer available, drop the
+ * received frame and reuse the existing buffer.
*/
- hdr = (struct ieee80211_hdr *)entry->skb->data;
- fc = le16_to_cpu(hdr->frame_control);
- if (is_beacon(fc) && (rxdesc->dev_flags & RXDONE_MY_BSS))
- rt2x00lib_update_link_stats(&rt2x00dev->link, rxdesc->rssi);
-
- rt2x00dev->link.qual.rx_success++;
-
- rx_status->rate_idx = idx;
- rx_status->signal =
- rt2x00lib_calculate_link_signal(rt2x00dev, rxdesc->rssi);
- rx_status->ssi = rxdesc->rssi;
- rx_status->flag = rxdesc->flags;
- rx_status->antenna = rt2x00dev->link.ant.active.rx;
+ skb = rt2x00queue_alloc_rxskb(rt2x00dev, entry);
+ if (!skb)
+ return;
/*
- * Send frame to mac80211 & debugfs.
- * mac80211 will clean up the skb structure.
+ * Unmap the skb.
*/
- get_skb_frame_desc(entry->skb)->frame_type = DUMP_FRAME_RXDONE;
- rt2x00debug_dump_frame(rt2x00dev, entry->skb);
- ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb, rx_status);
- entry->skb = NULL;
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_rxdone);
-
-/*
- * TX descriptor initializer
- */
-void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev,
- struct sk_buff *skb,
- struct ieee80211_tx_control *control)
-{
- struct txentry_desc txdesc;
- struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skbdesc->data;
- const struct rt2x00_rate *rate;
- int tx_rate;
- int length;
- int duration;
- int residual;
- u16 frame_control;
- u16 seq_ctrl;
-
- memset(&txdesc, 0, sizeof(txdesc));
-
- txdesc.queue = skbdesc->entry->queue->qid;
- txdesc.cw_min = skbdesc->entry->queue->cw_min;
- txdesc.cw_max = skbdesc->entry->queue->cw_max;
- txdesc.aifs = skbdesc->entry->queue->aifs;
+ rt2x00queue_unmap_skb(rt2x00dev, entry->skb);
/*
- * Read required fields from ieee80211 header.
+ * Extract the RXD details.
*/
- frame_control = le16_to_cpu(hdr->frame_control);
- seq_ctrl = le16_to_cpu(hdr->seq_ctrl);
-
- tx_rate = control->tx_rate->hw_value;
+ memset(&rxdesc, 0, sizeof(rxdesc));
+ rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc);
/*
- * Check whether this frame is to be acked
+ * The data behind the ieee80211 header must be
+ * aligned on a 4 byte boundary.
*/
- if (!(control->flags & IEEE80211_TXCTL_NO_ACK))
- __set_bit(ENTRY_TXD_ACK, &txdesc.flags);
+ header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
/*
- * Check if this is a RTS/CTS frame
+ * Hardware might have stripped the IV/EIV/ICV data,
+ * in that case it is possible that the data was
+ * provided separately (through hardware descriptor)
+ * in which case we should reinsert the data into the frame.
*/
- if (is_rts_frame(frame_control) || is_cts_frame(frame_control)) {
- __set_bit(ENTRY_TXD_BURST, &txdesc.flags);
- if (is_rts_frame(frame_control)) {
- __set_bit(ENTRY_TXD_RTS_FRAME, &txdesc.flags);
- __set_bit(ENTRY_TXD_ACK, &txdesc.flags);
- } else
- __clear_bit(ENTRY_TXD_ACK, &txdesc.flags);
- if (control->rts_cts_rate)
- tx_rate = control->rts_cts_rate->hw_value;
- }
+ if ((rxdesc.dev_flags & RXDONE_CRYPTO_IV) &&
+ (rxdesc.flags & RX_FLAG_IV_STRIPPED))
+ rt2x00crypto_rx_insert_iv(entry->skb, header_length,
+ &rxdesc);
+ else if (header_length &&
+ (rxdesc.size > header_length) &&
+ (rxdesc.dev_flags & RXDONE_L2PAD))
+ rt2x00queue_remove_l2pad(entry->skb, header_length);
+ else
+ rt2x00queue_align_payload(entry->skb, header_length);
- rate = rt2x00_get_rate(tx_rate);
+ /* Trim buffer to correct size */
+ skb_trim(entry->skb, rxdesc.size);
/*
- * Check if more fragments are pending
+ * Check if the frame was received using HT. In that case,
+ * the rate is the MCS index and should be passed to mac80211
+ * directly. Otherwise we need to translate the signal to
+ * the correct bitrate index.
*/
- if (ieee80211_get_morefrag(hdr)) {
- __set_bit(ENTRY_TXD_BURST, &txdesc.flags);
- __set_bit(ENTRY_TXD_MORE_FRAG, &txdesc.flags);
+ if (rxdesc.rate_mode == RATE_MODE_CCK ||
+ rxdesc.rate_mode == RATE_MODE_OFDM) {
+ rate_idx = rt2x00lib_rxdone_read_signal(rt2x00dev, &rxdesc);
+ } else {
+ rxdesc.flags |= RX_FLAG_HT;
+ rate_idx = rxdesc.signal;
}
/*
- * Beacons and probe responses require the tsf timestamp
- * to be inserted into the frame.
+ * Update extra components
*/
- if (control->queue == RT2X00_BCN_QUEUE_BEACON ||
- is_probe_resp(frame_control))
- __set_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc.flags);
+ rt2x00link_update_stats(rt2x00dev, entry->skb, &rxdesc);
+ rt2x00debug_update_crypto(rt2x00dev, &rxdesc);
- /*
- * Determine with what IFS priority this frame should be send.
- * Set ifs to IFS_SIFS when the this is not the first fragment,
- * or this fragment came after RTS/CTS.
- */
- if ((seq_ctrl & IEEE80211_SCTL_FRAG) > 0 ||
- test_bit(ENTRY_TXD_RTS_FRAME, &txdesc.flags))
- txdesc.ifs = IFS_SIFS;
- else
- txdesc.ifs = IFS_BACKOFF;
+ rx_status->mactime = rxdesc.timestamp;
+ rx_status->rate_idx = rate_idx;
+ rx_status->signal = rxdesc.rssi;
+ rx_status->noise = rxdesc.noise;
+ rx_status->flag = rxdesc.flags;
+ rx_status->antenna = rt2x00dev->link.ant.active.rx;
/*
- * PLCP setup
- * Length calculation depends on OFDM/CCK rate.
+ * Send frame to mac80211 & debugfs.
+ * mac80211 will clean up the skb structure.
*/
- txdesc.signal = rate->plcp;
- txdesc.service = 0x04;
-
- length = skbdesc->data_len + FCS_LEN;
- if (rate->flags & DEV_RATE_OFDM) {
- __set_bit(ENTRY_TXD_OFDM_RATE, &txdesc.flags);
-
- txdesc.length_high = (length >> 6) & 0x3f;
- txdesc.length_low = length & 0x3f;
- } else {
- /*
- * Convert length to microseconds.
- */
- residual = get_duration_res(length, rate->bitrate);
- duration = get_duration(length, rate->bitrate);
-
- if (residual != 0) {
- duration++;
-
- /*
- * Check if we need to set the Length Extension
- */
- if (rate->bitrate == 110 && residual <= 30)
- txdesc.service |= 0x80;
- }
-
- txdesc.length_high = (duration >> 8) & 0xff;
- txdesc.length_low = duration & 0xff;
-
- /*
- * When preamble is enabled we should set the
- * preamble bit for the signal.
- */
- if (rt2x00_get_rate_preamble(tx_rate))
- txdesc.signal |= 0x08;
- }
-
- rt2x00dev->ops->lib->write_tx_desc(rt2x00dev, skb, &txdesc, control);
+ rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, entry->skb);
+ memcpy(IEEE80211_SKB_RXCB(entry->skb), rx_status, sizeof(*rx_status));
+ ieee80211_rx_irqsafe(rt2x00dev->hw, entry->skb);
/*
- * Update queue entry.
+ * Replace the skb with the freshly allocated one.
*/
- skbdesc->entry->skb = skb;
+ entry->skb = skb;
+ entry->flags = 0;
- /*
- * The frame has been completely initialized and ready
- * for sending to the device. The caller will push the
- * frame to the device, but we are going to push the
- * frame to debugfs here.
- */
- skbdesc->frame_type = DUMP_FRAME_TX;
- rt2x00debug_dump_frame(rt2x00dev, skb);
+ rt2x00dev->ops->lib->clear_entry(entry);
+
+ rt2x00queue_index_inc(entry->queue, Q_INDEX);
}
-EXPORT_SYMBOL_GPL(rt2x00lib_write_tx_desc);
+EXPORT_SYMBOL_GPL(rt2x00lib_rxdone);
/*
* Driver initialization handlers.
*/
const struct rt2x00_rate rt2x00_supported_rates[12] = {
{
- .flags = DEV_RATE_CCK | DEV_RATE_BASIC,
+ .flags = DEV_RATE_CCK,
.bitrate = 10,
.ratemask = BIT(0),
.plcp = 0x00,
+ .mcs = RATE_MCS(RATE_MODE_CCK, 0),
},
{
- .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE | DEV_RATE_BASIC,
+ .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
.bitrate = 20,
.ratemask = BIT(1),
.plcp = 0x01,
+ .mcs = RATE_MCS(RATE_MODE_CCK, 1),
},
{
- .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE | DEV_RATE_BASIC,
+ .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
.bitrate = 55,
.ratemask = BIT(2),
.plcp = 0x02,
+ .mcs = RATE_MCS(RATE_MODE_CCK, 2),
},
{
- .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE | DEV_RATE_BASIC,
+ .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
.bitrate = 110,
.ratemask = BIT(3),
.plcp = 0x03,
+ .mcs = RATE_MCS(RATE_MODE_CCK, 3),
},
{
- .flags = DEV_RATE_OFDM | DEV_RATE_BASIC,
+ .flags = DEV_RATE_OFDM,
.bitrate = 60,
.ratemask = BIT(4),
.plcp = 0x0b,
+ .mcs = RATE_MCS(RATE_MODE_OFDM, 0),
},
{
.flags = DEV_RATE_OFDM,
.bitrate = 90,
.ratemask = BIT(5),
.plcp = 0x0f,
+ .mcs = RATE_MCS(RATE_MODE_OFDM, 1),
},
{
- .flags = DEV_RATE_OFDM | DEV_RATE_BASIC,
+ .flags = DEV_RATE_OFDM,
.bitrate = 120,
.ratemask = BIT(6),
.plcp = 0x0a,
+ .mcs = RATE_MCS(RATE_MODE_OFDM, 2),
},
{
.flags = DEV_RATE_OFDM,
.bitrate = 180,
.ratemask = BIT(7),
.plcp = 0x0e,
+ .mcs = RATE_MCS(RATE_MODE_OFDM, 3),
},
{
- .flags = DEV_RATE_OFDM | DEV_RATE_BASIC,
+ .flags = DEV_RATE_OFDM,
.bitrate = 240,
.ratemask = BIT(8),
.plcp = 0x09,
+ .mcs = RATE_MCS(RATE_MODE_OFDM, 4),
},
{
.flags = DEV_RATE_OFDM,
.bitrate = 360,
.ratemask = BIT(9),
.plcp = 0x0d,
+ .mcs = RATE_MCS(RATE_MODE_OFDM, 5),
},
{
.flags = DEV_RATE_OFDM,
.bitrate = 480,
.ratemask = BIT(10),
.plcp = 0x08,
+ .mcs = RATE_MCS(RATE_MODE_OFDM, 6),
},
{
.flags = DEV_RATE_OFDM,
.bitrate = 540,
.ratemask = BIT(11),
.plcp = 0x0c,
+ .mcs = RATE_MCS(RATE_MODE_OFDM, 7),
},
};
{
entry->flags = 0;
entry->bitrate = rate->bitrate;
- entry->hw_value = rt2x00_create_rate_hw_value(index, 0);
- entry->hw_value_short = entry->hw_value;
+ entry->hw_value =index;
+ entry->hw_value_short = index;
- if (rate->flags & DEV_RATE_SHORT_PREAMBLE) {
+ if (rate->flags & DEV_RATE_SHORT_PREAMBLE)
entry->flags |= IEEE80211_RATE_SHORT_PREAMBLE;
- entry->hw_value_short |= rt2x00_create_rate_hw_value(index, 1);
- }
}
static int rt2x00lib_probe_hw_modes(struct rt2x00_dev *rt2x00dev,
struct ieee80211_rate *rates;
unsigned int num_rates;
unsigned int i;
- unsigned char tx_power;
num_rates = 0;
if (spec->supported_rates & SUPPORT_RATE_CCK)
* Initialize Channel list.
*/
for (i = 0; i < spec->num_channels; i++) {
- if (spec->channels[i].channel <= 14) {
- if (spec->tx_power_bg)
- tx_power = spec->tx_power_bg[i];
- else
- tx_power = spec->tx_power_default;
- } else {
- if (spec->tx_power_a)
- tx_power = spec->tx_power_a[i];
- else
- tx_power = spec->tx_power_default;
- }
-
rt2x00lib_channel(&channels[i],
- spec->channels[i].channel, tx_power, i);
+ spec->channels[i].channel,
+ spec->channels_info[i].tx_power1, i);
}
/*
rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates;
hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
&rt2x00dev->bands[IEEE80211_BAND_2GHZ];
+ memcpy(&rt2x00dev->bands[IEEE80211_BAND_2GHZ].ht_cap,
+ &spec->ht, sizeof(spec->ht));
}
/*
rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4];
hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
&rt2x00dev->bands[IEEE80211_BAND_5GHZ];
+ memcpy(&rt2x00dev->bands[IEEE80211_BAND_5GHZ].ht_cap,
+ &spec->ht, sizeof(spec->ht));
}
return 0;
static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev)
{
- if (test_bit(DEVICE_REGISTERED_HW, &rt2x00dev->flags))
+ if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags))
ieee80211_unregister_hw(rt2x00dev->hw);
if (likely(rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ])) {
rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
rt2x00dev->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
}
+
+ kfree(rt2x00dev->spec.channels_info);
}
static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev)
struct hw_mode_spec *spec = &rt2x00dev->spec;
int status;
+ if (test_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags))
+ return 0;
+
/*
* Initialize HW modes.
*/
return status;
/*
+ * Initialize HW fields.
+ */
+ rt2x00dev->hw->queues = rt2x00dev->ops->tx_queues;
+
+ /*
+ * Initialize extra TX headroom required.
+ */
+ rt2x00dev->hw->extra_tx_headroom =
+ max_t(unsigned int, IEEE80211_TX_STATUS_HEADROOM,
+ rt2x00dev->ops->extra_tx_headroom);
+
+ /*
+ * Take TX headroom required for alignment into account.
+ */
+ if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags))
+ rt2x00dev->hw->extra_tx_headroom += RT2X00_L2PAD_SIZE;
+ else if (test_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags))
+ rt2x00dev->hw->extra_tx_headroom += RT2X00_ALIGN_SIZE;
+
+ /*
* Register HW.
*/
status = ieee80211_register_hw(rt2x00dev->hw);
- if (status) {
- rt2x00lib_remove_hw(rt2x00dev);
+ if (status)
return status;
- }
- __set_bit(DEVICE_REGISTERED_HW, &rt2x00dev->flags);
+ set_bit(DEVICE_STATE_REGISTERED_HW, &rt2x00dev->flags);
return 0;
}
*/
static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev)
{
- if (!__test_and_clear_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+ if (!test_and_clear_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags))
return;
/*
{
int status;
- if (test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+ if (test_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags))
return 0;
/*
return status;
}
- __set_bit(DEVICE_INITIALIZED, &rt2x00dev->flags);
+ set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags);
/*
* Register the extra components.
{
int retval;
- if (test_bit(DEVICE_STARTED, &rt2x00dev->flags))
+ if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
return 0;
/*
if (retval)
return retval;
- /*
- * Enable radio.
- */
+ rt2x00dev->intf_ap_count = 0;
+ rt2x00dev->intf_sta_count = 0;
+ rt2x00dev->intf_associated = 0;
+
+ /* Enable the radio */
retval = rt2x00lib_enable_radio(rt2x00dev);
if (retval) {
- rt2x00lib_uninitialize(rt2x00dev);
+ rt2x00queue_uninitialize(rt2x00dev);
return retval;
}
- rt2x00dev->intf_ap_count = 0;
- rt2x00dev->intf_sta_count = 0;
- rt2x00dev->intf_associated = 0;
-
- __set_bit(DEVICE_STARTED, &rt2x00dev->flags);
+ set_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags);
return 0;
}
void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev)
{
- if (!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
+ if (!test_and_clear_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
return;
/*
rt2x00dev->intf_ap_count = 0;
rt2x00dev->intf_sta_count = 0;
rt2x00dev->intf_associated = 0;
-
- __clear_bit(DEVICE_STARTED, &rt2x00dev->flags);
}
/*
{
int retval = -ENOMEM;
+ mutex_init(&rt2x00dev->csr_mutex);
+
+ set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
+
/*
* Make room for rt2x00_intf inside the per-interface
* structure ieee80211_vif.
rt2x00dev->hw->vif_data_size = sizeof(struct rt2x00_intf);
/*
+ * Determine which operating modes are supported, all modes
+ * which require beaconing, depend on the availability of
+ * beacon entries.
+ */
+ rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+ if (rt2x00dev->ops->bcn->entry_num > 0)
+ rt2x00dev->hw->wiphy->interface_modes |=
+ BIT(NL80211_IFTYPE_ADHOC) |
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_MESH_POINT) |
+ BIT(NL80211_IFTYPE_WDS);
+
+ /*
* Let the driver probe the device to detect the capabilities.
*/
retval = rt2x00dev->ops->lib->probe_hw(rt2x00dev);
* Initialize configuration work.
*/
INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled);
- INIT_WORK(&rt2x00dev->filter_work, rt2x00lib_packetfilter_scheduled);
- INIT_DELAYED_WORK(&rt2x00dev->link.work, rt2x00lib_link_tuner);
/*
* Allocate queue array.
/*
* Register extra components.
*/
+ rt2x00link_register(rt2x00dev);
rt2x00leds_register(rt2x00dev);
- rt2x00rfkill_allocate(rt2x00dev);
rt2x00debug_register(rt2x00dev);
- __set_bit(DEVICE_PRESENT, &rt2x00dev->flags);
-
return 0;
exit:
void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev)
{
- __clear_bit(DEVICE_PRESENT, &rt2x00dev->flags);
+ clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
/*
* Disable radio.
rt2x00lib_disable_radio(rt2x00dev);
/*
+ * Stop all work.
+ */
+ cancel_work_sync(&rt2x00dev->intf_work);
+
+ /*
* Uninitialize device.
*/
rt2x00lib_uninitialize(rt2x00dev);
* Free extra components
*/
rt2x00debug_deregister(rt2x00dev);
- rt2x00rfkill_free(rt2x00dev);
rt2x00leds_unregister(rt2x00dev);
/*
#ifdef CONFIG_PM
int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state)
{
- int retval;
-
NOTICE(rt2x00dev, "Going to sleep.\n");
- __clear_bit(DEVICE_PRESENT, &rt2x00dev->flags);
/*
- * Only continue if mac80211 has open interfaces.
+ * Prevent mac80211 from accessing driver while suspended.
*/
- if (!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
- goto exit;
- __set_bit(DEVICE_STARTED_SUSPEND, &rt2x00dev->flags);
+ if (!test_and_clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
+ return 0;
/*
- * Disable radio.
+ * Cleanup as much as possible.
*/
- rt2x00lib_stop(rt2x00dev);
rt2x00lib_uninitialize(rt2x00dev);
/*
* Suspend/disable extra components.
*/
rt2x00leds_suspend(rt2x00dev);
- rt2x00rfkill_suspend(rt2x00dev);
rt2x00debug_deregister(rt2x00dev);
-exit:
/*
* Set device mode to sleep for power management,
* on some hardware this call seems to consistently fail.
* the radio and the other components already disabled the
* device is as good as disabled.
*/
- retval = rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP);
- if (retval)
+ if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_SLEEP))
WARNING(rt2x00dev, "Device failed to enter sleep state, "
"continue suspending.\n");
}
EXPORT_SYMBOL_GPL(rt2x00lib_suspend);
-static void rt2x00lib_resume_intf(void *data, u8 *mac,
- struct ieee80211_vif *vif)
-{
- struct rt2x00_dev *rt2x00dev = data;
- struct rt2x00_intf *intf = vif_to_intf(vif);
-
- spin_lock(&intf->lock);
-
- rt2x00lib_config_intf(rt2x00dev, intf,
- vif->type, intf->mac, intf->bssid);
-
-
- /*
- * Master or Ad-hoc mode require a new beacon update.
- */
- if (vif->type == IEEE80211_IF_TYPE_AP ||
- vif->type == IEEE80211_IF_TYPE_IBSS)
- intf->delayed_flags |= DELAYED_UPDATE_BEACON;
-
- spin_unlock(&intf->lock);
-}
-
int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev)
{
- int retval;
-
NOTICE(rt2x00dev, "Waking up.\n");
/*
* Restore/enable extra components.
*/
rt2x00debug_register(rt2x00dev);
- rt2x00rfkill_resume(rt2x00dev);
rt2x00leds_resume(rt2x00dev);
/*
- * Only continue if mac80211 had open interfaces.
- */
- if (!__test_and_clear_bit(DEVICE_STARTED_SUSPEND, &rt2x00dev->flags))
- return 0;
-
- /*
- * Reinitialize device and all active interfaces.
- */
- retval = rt2x00lib_start(rt2x00dev);
- if (retval)
- goto exit;
-
- /*
- * Reconfigure device.
- */
- rt2x00lib_config(rt2x00dev, &rt2x00dev->hw->conf, 1);
- if (!rt2x00dev->hw->conf.radio_enabled)
- rt2x00lib_disable_radio(rt2x00dev);
-
- /*
- * Iterator over each active interface to
- * reconfigure the hardware.
- */
- ieee80211_iterate_active_interfaces(rt2x00dev->hw,
- rt2x00lib_resume_intf, rt2x00dev);
-
- /*
* We are ready again to receive requests from mac80211.
*/
- __set_bit(DEVICE_PRESENT, &rt2x00dev->flags);
-
- /*
- * It is possible that during that mac80211 has attempted
- * to send frames while we were suspending or resuming.
- * In that case we have disabled the TX queue and should
- * now enable it again
- */
- ieee80211_start_queues(rt2x00dev->hw);
-
- /*
- * During interface iteration we might have changed the
- * delayed_flags, time to handles the event by calling
- * the work handler directly.
- */
- rt2x00lib_intf_scheduled(&rt2x00dev->intf_work);
+ set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
return 0;
-
-exit:
- rt2x00lib_disable_radio(rt2x00dev);
- rt2x00lib_uninitialize(rt2x00dev);
- rt2x00debug_deregister(rt2x00dev);
-
- return retval;
}
EXPORT_SYMBOL_GPL(rt2x00lib_resume);
#endif /* CONFIG_PM */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff