diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-06 12:30:19 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-06 12:30:19 -0800 |
commit | abb359450f20c32ae03039d8736f12b1d561caf5 (patch) | |
tree | 6e8723885feb66a138f19f0ff31615dc13a8d859 /net/mac80211/led.c | |
parent | cb600d2f83c854ec3d6660063e4466431999489b (diff) | |
parent | 4e3dbdb1392a83bd21a6ff8f6bc785495058d37c (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1436 commits)
cassini: Use local-mac-address prom property for Cassini MAC address
net: remove the duplicate #ifdef __KERNEL__
net: bridge: check the length of skb after nf_bridge_maybe_copy_header()
netconsole: clarify stopping message
netconsole: don't announce stopping if nothing happened
cnic: Fix the type field in SPQ messages
netfilter: fix export secctx error handling
netfilter: fix the race when initializing nf_ct_expect_hash_rnd
ipv4: IP defragmentation must be ECN aware
net: r6040: Return proper error for r6040_init_one
dcb: use after free in dcb_flushapp()
dcb: unlock on error in dcbnl_ieee_get()
net: ixp4xx_eth: Return proper error for eth_init_one
include/linux/if_ether.h: Add #define ETH_P_LINK_CTL for HPNA and wlan local tunnel
net: add POLLPRI to sock_def_readable()
af_unix: Avoid socket->sk NULL OOPS in stream connect security hooks.
net_sched: pfifo_head_drop problem
mac80211: remove stray extern
mac80211: implement off-channel TX using hw r-o-c offload
mac80211: implement hardware offload for remain-on-channel
...
Diffstat (limited to 'net/mac80211/led.c')
-rw-r--r-- | net/mac80211/led.c | 186 |
1 files changed, 166 insertions, 20 deletions
diff --git a/net/mac80211/led.c b/net/mac80211/led.c index 063aad94424..14590332c81 100644 --- a/net/mac80211/led.c +++ b/net/mac80211/led.c @@ -54,12 +54,22 @@ void ieee80211_led_radio(struct ieee80211_local *local, bool enabled) led_trigger_event(local->radio_led, LED_OFF); } +void ieee80211_led_names(struct ieee80211_local *local) +{ + snprintf(local->rx_led_name, sizeof(local->rx_led_name), + "%srx", wiphy_name(local->hw.wiphy)); + snprintf(local->tx_led_name, sizeof(local->tx_led_name), + "%stx", wiphy_name(local->hw.wiphy)); + snprintf(local->assoc_led_name, sizeof(local->assoc_led_name), + "%sassoc", wiphy_name(local->hw.wiphy)); + snprintf(local->radio_led_name, sizeof(local->radio_led_name), + "%sradio", wiphy_name(local->hw.wiphy)); +} + void ieee80211_led_init(struct ieee80211_local *local) { local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); if (local->rx_led) { - snprintf(local->rx_led_name, sizeof(local->rx_led_name), - "%srx", wiphy_name(local->hw.wiphy)); local->rx_led->name = local->rx_led_name; if (led_trigger_register(local->rx_led)) { kfree(local->rx_led); @@ -69,8 +79,6 @@ void ieee80211_led_init(struct ieee80211_local *local) local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); if (local->tx_led) { - snprintf(local->tx_led_name, sizeof(local->tx_led_name), - "%stx", wiphy_name(local->hw.wiphy)); local->tx_led->name = local->tx_led_name; if (led_trigger_register(local->tx_led)) { kfree(local->tx_led); @@ -80,8 +88,6 @@ void ieee80211_led_init(struct ieee80211_local *local) local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); if (local->assoc_led) { - snprintf(local->assoc_led_name, sizeof(local->assoc_led_name), - "%sassoc", wiphy_name(local->hw.wiphy)); local->assoc_led->name = local->assoc_led_name; if (led_trigger_register(local->assoc_led)) { kfree(local->assoc_led); @@ -91,14 +97,19 @@ void ieee80211_led_init(struct ieee80211_local *local) local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); if (local->radio_led) { - snprintf(local->radio_led_name, sizeof(local->radio_led_name), - "%sradio", wiphy_name(local->hw.wiphy)); local->radio_led->name = local->radio_led_name; if (led_trigger_register(local->radio_led)) { kfree(local->radio_led); local->radio_led = NULL; } } + + if (local->tpt_led_trigger) { + if (led_trigger_register(&local->tpt_led_trigger->trig)) { + kfree(local->tpt_led_trigger); + local->tpt_led_trigger = NULL; + } + } } void ieee80211_led_exit(struct ieee80211_local *local) @@ -119,15 +130,18 @@ void ieee80211_led_exit(struct ieee80211_local *local) led_trigger_unregister(local->rx_led); kfree(local->rx_led); } + + if (local->tpt_led_trigger) { + led_trigger_unregister(&local->tpt_led_trigger->trig); + kfree(local->tpt_led_trigger); + } } char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); - if (local->radio_led) - return local->radio_led_name; - return NULL; + return local->radio_led_name; } EXPORT_SYMBOL(__ieee80211_get_radio_led_name); @@ -135,9 +149,7 @@ char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); - if (local->assoc_led) - return local->assoc_led_name; - return NULL; + return local->assoc_led_name; } EXPORT_SYMBOL(__ieee80211_get_assoc_led_name); @@ -145,9 +157,7 @@ char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); - if (local->tx_led) - return local->tx_led_name; - return NULL; + return local->tx_led_name; } EXPORT_SYMBOL(__ieee80211_get_tx_led_name); @@ -155,8 +165,144 @@ char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); - if (local->rx_led) - return local->rx_led_name; - return NULL; + return local->rx_led_name; } EXPORT_SYMBOL(__ieee80211_get_rx_led_name); + +static unsigned long tpt_trig_traffic(struct ieee80211_local *local, + struct tpt_led_trigger *tpt_trig) +{ + unsigned long traffic, delta; + + traffic = tpt_trig->tx_bytes + tpt_trig->rx_bytes; + + delta = traffic - tpt_trig->prev_traffic; + tpt_trig->prev_traffic = traffic; + return DIV_ROUND_UP(delta, 1024 / 8); +} + +static void tpt_trig_timer(unsigned long data) +{ + struct ieee80211_local *local = (void *)data; + struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; + struct led_classdev *led_cdev; + unsigned long on, off, tpt; + int i; + + if (!tpt_trig->running) + return; + + mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); + + tpt = tpt_trig_traffic(local, tpt_trig); + + /* default to just solid on */ + on = 1; + off = 0; + + for (i = tpt_trig->blink_table_len - 1; i >= 0; i--) { + if (tpt_trig->blink_table[i].throughput < 0 || + tpt > tpt_trig->blink_table[i].throughput) { + off = tpt_trig->blink_table[i].blink_time / 2; + on = tpt_trig->blink_table[i].blink_time - off; + break; + } + } + + read_lock(&tpt_trig->trig.leddev_list_lock); + list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list) + led_blink_set(led_cdev, &on, &off); + read_unlock(&tpt_trig->trig.leddev_list_lock); +} + +char *__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, + unsigned int flags, + const struct ieee80211_tpt_blink *blink_table, + unsigned int blink_table_len) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct tpt_led_trigger *tpt_trig; + + if (WARN_ON(local->tpt_led_trigger)) + return NULL; + + tpt_trig = kzalloc(sizeof(struct tpt_led_trigger), GFP_KERNEL); + if (!tpt_trig) + return NULL; + + snprintf(tpt_trig->name, sizeof(tpt_trig->name), + "%stpt", wiphy_name(local->hw.wiphy)); + + tpt_trig->trig.name = tpt_trig->name; + + tpt_trig->blink_table = blink_table; + tpt_trig->blink_table_len = blink_table_len; + tpt_trig->want = flags; + + setup_timer(&tpt_trig->timer, tpt_trig_timer, (unsigned long)local); + + local->tpt_led_trigger = tpt_trig; + + return tpt_trig->name; +} +EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger); + +static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local) +{ + struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; + + if (tpt_trig->running) + return; + + /* reset traffic */ + tpt_trig_traffic(local, tpt_trig); + tpt_trig->running = true; + + tpt_trig_timer((unsigned long)local); + mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); +} + +static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local) +{ + struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; + struct led_classdev *led_cdev; + + if (!tpt_trig->running) + return; + + tpt_trig->running = false; + del_timer_sync(&tpt_trig->timer); + + read_lock(&tpt_trig->trig.leddev_list_lock); + list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list) + led_brightness_set(led_cdev, LED_OFF); + read_unlock(&tpt_trig->trig.leddev_list_lock); +} + +void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local, + unsigned int types_on, unsigned int types_off) +{ + struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; + bool allowed; + + WARN_ON(types_on & types_off); + + if (!tpt_trig) + return; + + tpt_trig->active &= ~types_off; + tpt_trig->active |= types_on; + + /* + * Regardless of wanted state, we shouldn't blink when + * the radio is disabled -- this can happen due to some + * code ordering issues with __ieee80211_recalc_idle() + * being called before the radio is started. + */ + allowed = tpt_trig->active & IEEE80211_TPT_LEDTRIG_FL_RADIO; + + if (!allowed || !(tpt_trig->active & tpt_trig->want)) + ieee80211_stop_tpt_led_trig(local); + else + ieee80211_start_tpt_led_trig(local); +} |