b43: Beaconing fixes
These are some beaconing related fixes. Basically it prevents the card from triggering the beacon IRQ over and over again. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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182e2e66ca
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a82d992261
2 changed files with 37 additions and 6 deletions
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@ -733,6 +733,7 @@ struct b43_wl {
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struct sk_buff *current_beacon;
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bool beacon0_uploaded;
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bool beacon1_uploaded;
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struct work_struct beacon_update_trigger;
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/* The current QOS parameters for the 4 queues.
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* This is protected by the irq_lock. */
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@ -1337,7 +1337,8 @@ static void b43_write_beacon_template(struct b43_wldev *dev,
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b43warn(dev->wl, "Did not find a valid TIM IE in "
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"the beacon template packet. AP or IBSS operation "
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"may be broken.\n");
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}
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} else
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b43dbg(dev->wl, "Updated beacon template\n");
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}
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static void b43_write_probe_resp_plcp(struct b43_wldev *dev,
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@ -1447,6 +1448,27 @@ static void b43_write_probe_resp_template(struct b43_wldev *dev,
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kfree(probe_resp_data);
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}
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static void b43_beacon_update_trigger_work(struct work_struct *work)
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{
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struct b43_wl *wl = container_of(work, struct b43_wl,
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beacon_update_trigger);
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struct b43_wldev *dev;
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mutex_lock(&wl->mutex);
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dev = wl->current_dev;
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if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) {
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/* Force the microcode to trigger the
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* beacon update bottom-half IRQ. */
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spin_lock_irq(&wl->irq_lock);
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b43_write32(dev, B43_MMIO_MACCMD,
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b43_read32(dev, B43_MMIO_MACCMD)
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| B43_MACCMD_BEACON0_VALID
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| B43_MACCMD_BEACON1_VALID);
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spin_unlock_irq(&wl->irq_lock);
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}
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mutex_unlock(&wl->mutex);
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}
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/* Asynchronously update the packet templates in template RAM.
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* Locking: Requires wl->irq_lock to be locked. */
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static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon)
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@ -1462,6 +1484,7 @@ static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon)
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wl->current_beacon = beacon;
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wl->beacon0_uploaded = 0;
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wl->beacon1_uploaded = 0;
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queue_work(wl->hw->workqueue, &wl->beacon_update_trigger);
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}
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static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len)
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@ -1487,18 +1510,20 @@ static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
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{
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b43_time_lock(dev);
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if (dev->dev->id.revision >= 3) {
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b43_write32(dev, 0x188, (beacon_int << 16));
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b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16));
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b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10));
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} else {
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b43_write16(dev, 0x606, (beacon_int >> 6));
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b43_write16(dev, 0x610, beacon_int);
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}
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b43_time_unlock(dev);
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b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
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}
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static void handle_irq_beacon(struct b43_wldev *dev)
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{
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struct b43_wl *wl = dev->wl;
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u32 cmd;
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u32 cmd, beacon0_valid, beacon1_valid;
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if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
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return;
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@ -1506,7 +1531,11 @@ static void handle_irq_beacon(struct b43_wldev *dev)
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/* This is the bottom half of the asynchronous beacon update. */
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cmd = b43_read32(dev, B43_MMIO_MACCMD);
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if (!(cmd & B43_MACCMD_BEACON0_VALID)) {
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beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID);
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beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID);
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cmd &= ~(B43_MACCMD_BEACON0_VALID | B43_MACCMD_BEACON1_VALID);
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if (!beacon0_valid) {
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if (!wl->beacon0_uploaded) {
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b43_write_beacon_template(dev, 0x68, 0x18,
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B43_CCK_RATE_1MB);
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@ -1515,8 +1544,7 @@ static void handle_irq_beacon(struct b43_wldev *dev)
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wl->beacon0_uploaded = 1;
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}
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cmd |= B43_MACCMD_BEACON0_VALID;
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}
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if (!(cmd & B43_MACCMD_BEACON1_VALID)) {
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} else if (!beacon1_valid) {
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if (!wl->beacon1_uploaded) {
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b43_write_beacon_template(dev, 0x468, 0x1A,
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B43_CCK_RATE_1MB);
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@ -4012,6 +4040,7 @@ static void b43_op_stop(struct ieee80211_hw *hw)
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b43_rfkill_exit(dev);
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cancel_work_sync(&(wl->qos_update_work));
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cancel_work_sync(&(wl->beacon_update_trigger));
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mutex_lock(&wl->mutex);
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if (b43_status(dev) >= B43_STAT_STARTED)
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@ -4389,6 +4418,7 @@ static int b43_wireless_init(struct ssb_device *dev)
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mutex_init(&wl->mutex);
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INIT_LIST_HEAD(&wl->devlist);
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INIT_WORK(&wl->qos_update_work, b43_qos_update_work);
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INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
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ssb_set_devtypedata(dev, wl);
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b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id);
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