#include "rt2x00.h"
#include "rt2x00lib.h"
-#include "rt2x00dump.h"
/*
* Link tuning handlers
/*
* Enable radio.
*/
- status = rt2x00dev->ops->lib->set_device_state(rt2x00dev,
- STATE_RADIO_ON);
+ status =
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_ON);
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);
/*
/*
* Start the TX queues.
*/
- ieee80211_start_queues(rt2x00dev->hw);
+ ieee80211_wake_queues(rt2x00dev->hw);
return 0;
}
* 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);
}
void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, enum dev_state state)
{
struct rt2x00_dev *rt2x00dev =
container_of(work, struct rt2x00_dev, filter_work);
- unsigned int filter = rt2x00dev->packet_filter;
- /*
- * Since we had stored the filter inside rt2x00dev->packet_filter,
- * we should now clear that field. Otherwise the driver will
- * assume nothing has changed (*total_flags will be compared
- * to rt2x00dev->packet_filter to determine if any action is required).
- */
- rt2x00dev->packet_filter = 0;
-
- rt2x00dev->ops->hw->configure_filter(rt2x00dev->hw,
- filter, &filter, 0, NULL);
+ rt2x00dev->ops->lib->config_filter(rt2x00dev, rt2x00dev->packet_filter);
}
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_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);
+ skb = ieee80211_beacon_get(rt2x00dev->hw, vif);
+ if (skb &&
+ rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw, skb))
dev_kfree_skb(skb);
- }
}
if (delayed_flags & DELAYED_CONFIG_ERP)
rt2x00lib_config_erp(rt2x00dev, intf, &intf->conf);
+
+ if (delayed_flags & DELAYED_LED_ASSOC)
+ rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated);
}
static void rt2x00lib_intf_scheduled(struct work_struct *work)
if (!test_bit(DEVICE_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);
}
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);
+
+ /*
+ * 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);
/*
* Update TX statistics.
*/
- rt2x00dev->link.qual.tx_success += success;
- rt2x00dev->link.qual.tx_failed += txdesc->retry + fail;
+ rt2x00dev->link.qual.tx_success +=
+ test_bit(TXDONE_SUCCESS, &txdesc->flags);
+ rt2x00dev->link.qual.tx_failed +=
+ test_bit(TXDONE_FAILURE, &txdesc->flags);
/*
* 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;
+ tx_info->status.excessive_retries =
+ test_bit(TXDONE_EXCESSIVE_RETRY, &txdesc->flags);
+ tx_info->status.retry_count = txdesc->retry;
- if (!(tx_status.control.flags & IEEE80211_TXCTL_NO_ACK)) {
- if (success)
- tx_status.flags |= IEEE80211_TX_STATUS_ACK;
- else
+ if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) {
+ if (test_bit(TXDONE_SUCCESS, &txdesc->flags))
+ tx_info->flags |= IEEE80211_TX_STAT_ACK;
+ else if (test_bit(TXDONE_FAILURE, &txdesc->flags))
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 (success)
+ if (tx_info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
+ if (test_bit(TXDONE_SUCCESS, &txdesc->flags))
rt2x00dev->low_level_stats.dot11RTSSuccessCount++;
- else
+ else if (test_bit(TXDONE_FAILURE, &txdesc->flags))
rt2x00dev->low_level_stats.dot11RTSFailureCount++;
}
/*
- * 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 TX status was
+ * requested by it. 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 (tx_info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)
+ ieee80211_tx_status_irqsafe(rt2x00dev->hw, entry->skb);
else
- dev_kfree_skb(entry->skb);
+ dev_kfree_skb_irq(entry->skb);
entry->skb = NULL;
}
EXPORT_SYMBOL_GPL(rt2x00lib_txdone);
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status;
+ unsigned int header_size = ieee80211_get_hdrlen_from_skb(entry->skb);
struct ieee80211_supported_band *sband;
struct ieee80211_hdr *hdr;
const struct rt2x00_rate *rate;
+ unsigned int align;
unsigned int i;
int idx = -1;
u16 fc;
/*
+ * The data behind the ieee80211 header must be
+ * aligned on a 4 byte boundary.
+ */
+ align = ((unsigned long)(entry->skb->data + header_size)) & 3;
+
+ if (align) {
+ skb_push(entry->skb, align);
+ /* Move entire frame in 1 command */
+ memmove(entry->skb->data, entry->skb->data + align,
+ rxdesc->size);
+ }
+
+ /* Update data pointers, trim buffer to correct size */
+ skb_trim(entry->skb, rxdesc->size);
+
+ /*
* Update RX statistics.
*/
sband = &rt2x00dev->bands[rt2x00dev->curr_band];
for (i = 0; i < sband->n_bitrates; i++) {
rate = rt2x00_get_rate(sband->bitrates[i].hw_value);
- /*
- * When frame was received with an OFDM bitrate,
- * the signal is the PLCP value. If it was received with
- * a CCK bitrate the signal is the rate in 100kbit/s.
- */
- if ((rxdesc->ofdm && rate->plcp == rxdesc->signal) ||
- (!rxdesc->ofdm && rate->bitrate == rxdesc->signal)) {
+ 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 (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;
+ }
+
/*
* Only update link status if this is a beacon frame carrying our bssid.
*/
hdr = (struct ieee80211_hdr *)entry->skb->data;
fc = le16_to_cpu(hdr->frame_control);
- if (is_beacon(fc) && rxdesc->my_bss)
+ 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 =
+ rx_status->qual =
rt2x00lib_calculate_link_signal(rt2x00dev, rxdesc->rssi);
- rx_status->ssi = rxdesc->rssi;
+ rx_status->signal = rxdesc->rssi;
rx_status->flag = rxdesc->flags;
rx_status->antenna = rt2x00dev->link.ant.active.rx;
* Send frame to mac80211 & debugfs.
* mac80211 will clean up the skb structure.
*/
- get_skb_frame_desc(entry->skb)->frame_type = DUMP_FRAME_RXDONE;
- rt2x00debug_dump_frame(rt2x00dev, entry->skb);
+ rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_RXDONE, 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;
-
- /*
- * Read required fields from ieee80211 header.
- */
- frame_control = le16_to_cpu(hdr->frame_control);
- seq_ctrl = le16_to_cpu(hdr->seq_ctrl);
-
- tx_rate = control->tx_rate->hw_value;
-
- /*
- * Check whether this frame is to be acked
- */
- if (!(control->flags & IEEE80211_TXCTL_NO_ACK))
- __set_bit(ENTRY_TXD_ACK, &txdesc.flags);
-
- /*
- * Check if this is a RTS/CTS 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;
- }
-
- rate = rt2x00_get_rate(tx_rate);
-
- /*
- * Check if more fragments are pending
- */
- if (ieee80211_get_morefrag(hdr)) {
- __set_bit(ENTRY_TXD_BURST, &txdesc.flags);
- __set_bit(ENTRY_TXD_MORE_FRAG, &txdesc.flags);
- }
-
- /*
- * Beacons and probe responses require the tsf timestamp
- * to be inserted into the frame.
- */
- if (control->queue == RT2X00_BCN_QUEUE_BEACON ||
- is_probe_resp(frame_control))
- __set_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc.flags);
-
- /*
- * 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;
-
- /*
- * PLCP setup
- * Length calculation depends on OFDM/CCK rate.
- */
- 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);
-
- /*
- * Update queue entry.
- */
- skbdesc->entry->skb = skb;
-
- /*
- * 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);
-}
-EXPORT_SYMBOL_GPL(rt2x00lib_write_tx_desc);
-
-/*
* Driver initialization handlers.
*/
const struct rt2x00_rate rt2x00_supported_rates[12] = {
{
- .flags = DEV_RATE_CCK,
+ .flags = DEV_RATE_CCK | DEV_RATE_BASIC,
.bitrate = 10,
- .ratemask = DEV_RATEMASK_1MB,
+ .ratemask = BIT(0),
.plcp = 0x00,
},
{
- .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
+ .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE | DEV_RATE_BASIC,
.bitrate = 20,
- .ratemask = DEV_RATEMASK_2MB,
+ .ratemask = BIT(1),
.plcp = 0x01,
},
{
- .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
+ .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE | DEV_RATE_BASIC,
.bitrate = 55,
- .ratemask = DEV_RATEMASK_5_5MB,
+ .ratemask = BIT(2),
.plcp = 0x02,
},
{
- .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
+ .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE | DEV_RATE_BASIC,
.bitrate = 110,
- .ratemask = DEV_RATEMASK_11MB,
+ .ratemask = BIT(3),
.plcp = 0x03,
},
{
- .flags = DEV_RATE_OFDM,
+ .flags = DEV_RATE_OFDM | DEV_RATE_BASIC,
.bitrate = 60,
- .ratemask = DEV_RATEMASK_6MB,
+ .ratemask = BIT(4),
.plcp = 0x0b,
},
{
.flags = DEV_RATE_OFDM,
.bitrate = 90,
- .ratemask = DEV_RATEMASK_9MB,
+ .ratemask = BIT(5),
.plcp = 0x0f,
},
{
- .flags = DEV_RATE_OFDM,
+ .flags = DEV_RATE_OFDM | DEV_RATE_BASIC,
.bitrate = 120,
- .ratemask = DEV_RATEMASK_12MB,
+ .ratemask = BIT(6),
.plcp = 0x0a,
},
{
.flags = DEV_RATE_OFDM,
.bitrate = 180,
- .ratemask = DEV_RATEMASK_18MB,
+ .ratemask = BIT(7),
.plcp = 0x0e,
},
{
- .flags = DEV_RATE_OFDM,
+ .flags = DEV_RATE_OFDM | DEV_RATE_BASIC,
.bitrate = 240,
- .ratemask = DEV_RATEMASK_24MB,
+ .ratemask = BIT(8),
.plcp = 0x09,
},
{
.flags = DEV_RATE_OFDM,
.bitrate = 360,
- .ratemask = DEV_RATEMASK_36MB,
+ .ratemask = BIT(9),
.plcp = 0x0d,
},
{
.flags = DEV_RATE_OFDM,
.bitrate = 480,
- .ratemask = DEV_RATEMASK_48MB,
+ .ratemask = BIT(10),
.plcp = 0x08,
},
{
.flags = DEV_RATE_OFDM,
.bitrate = 540,
- .ratemask = DEV_RATEMASK_54MB,
+ .ratemask = BIT(11),
.plcp = 0x0c,
},
};
return status;
/*
+ * Initialize HW fields.
+ */
+ rt2x00dev->hw->queues = rt2x00dev->ops->tx_queues;
+
+ /*
* Register HW.
*/
status = ieee80211_register_hw(rt2x00dev->hw);
return;
/*
- * Unregister rfkill.
+ * Unregister extra components.
*/
rt2x00rfkill_unregister(rt2x00dev);
* Initialize the device.
*/
status = rt2x00dev->ops->lib->initialize(rt2x00dev);
- if (status)
- goto exit;
+ if (status) {
+ rt2x00queue_uninitialize(rt2x00dev);
+ return status;
+ }
__set_bit(DEVICE_INITIALIZED, &rt2x00dev->flags);
/*
- * Register the rfkill handler.
+ * Register the extra components.
*/
- status = rt2x00rfkill_register(rt2x00dev);
- if (status)
- goto exit;
+ rt2x00rfkill_register(rt2x00dev);
return 0;
-
-exit:
- rt2x00lib_uninitialize(rt2x00dev);
-
- return status;
}
int rt2x00lib_start(struct rt2x00_dev *rt2x00dev)
}
/*
- * Register LED.
+ * Register extra components.
*/
rt2x00leds_register(rt2x00dev);
-
- /*
- * Allocatie rfkill.
- */
- retval = rt2x00rfkill_allocate(rt2x00dev);
- if (retval)
- goto exit;
-
- /*
- * Open the debugfs entry.
- */
+ rt2x00rfkill_allocate(rt2x00dev);
rt2x00debug_register(rt2x00dev);
__set_bit(DEVICE_PRESENT, &rt2x00dev->flags);
rt2x00lib_uninitialize(rt2x00dev);
/*
- * Close debugfs entry.
+ * Free extra components
*/
rt2x00debug_deregister(rt2x00dev);
-
- /*
- * Free rfkill
- */
rt2x00rfkill_free(rt2x00dev);
-
- /*
- * Free LED.
- */
rt2x00leds_unregister(rt2x00dev);
/*
__set_bit(DEVICE_STARTED_SUSPEND, &rt2x00dev->flags);
/*
- * Disable radio and unitialize all items
- * that must be recreated on resume.
+ * Disable radio.
*/
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.
+ * Set device mode to sleep for power management,
+ * on some hardware this call seems to consistently fail.
+ * From the specifications it is hard to tell why it fails,
+ * and if this is a "bad thing".
+ * Overall it is safe to just ignore the failure and
+ * continue suspending. The only downside is that the
+ * device will not be in optimal power save mode, but with
+ * 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)
- return retval;
+ WARNING(rt2x00dev, "Device failed to enter sleep state, "
+ "continue suspending.\n");
return 0;
}
NOTICE(rt2x00dev, "Waking up.\n");
/*
- * Open the debugfs entry and restore led handling.
+ * Restore/enable extra components.
*/
rt2x00debug_register(rt2x00dev);
+ rt2x00rfkill_resume(rt2x00dev);
rt2x00leds_resume(rt2x00dev);
/*
* In that case we have disabled the TX queue and should
* now enable it again
*/
- ieee80211_start_queues(rt2x00dev->hw);
+ ieee80211_wake_queues(rt2x00dev->hw);
/*
* During interface iteration we might have changed the
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff