| ieee80211_power.c (257176) | ieee80211_power.c (264855) |
|---|---|
| 1/*- 2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 10 unchanged lines hidden (view full) --- 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 10 unchanged lines hidden (view full) --- 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h> |
| 27__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_power.c 257176 2013-10-26 17:58:36Z glebius $"); | 27__FBSDID("$FreeBSD: head/sys/net80211/ieee80211_power.c 264855 2014-04-24 01:39:53Z adrian $"); |
| 28 29/* 30 * IEEE 802.11 power save support. 31 */ 32#include "opt_wlan.h" 33 34#include <sys/param.h> 35#include <sys/systm.h> --- 514 unchanged lines hidden (view full) --- 550 */ 551 if (ni->ni_psq.psq_len != 0) 552 pwrsave_flushq(ni); 553 } else { 554 ni->ni_flags |= IEEE80211_NODE_PWR_MGT; 555 ieee80211_send_nulldata(ieee80211_ref_node(ni)); 556 } 557} | 28 29/* 30 * IEEE 802.11 power save support. 31 */ 32#include "opt_wlan.h" 33 34#include <sys/param.h> 35#include <sys/systm.h> --- 514 unchanged lines hidden (view full) --- 550 */ 551 if (ni->ni_psq.psq_len != 0) 552 pwrsave_flushq(ni); 553 } else { 554 ni->ni_flags |= IEEE80211_NODE_PWR_MGT; 555 ieee80211_send_nulldata(ieee80211_ref_node(ni)); 556 } 557} |
| 558 559/* 560 * Handle being notified that we have data available for us in a TIM/ATIM. 561 * 562 * This may schedule a transition from _SLEEP -> _RUN if it's appropriate. 563 */ 564void 565ieee80211_sta_tim_notify(struct ieee80211vap *vap, int set) 566{ 567 /* 568 * Schedule the driver state change. It'll happen at some point soon. 569 * Since the hardware shouldn't know that we're running just yet 570 * (and thus tell the peer that we're awake before we actually wake 571 * up said hardware), we leave the actual node state transition 572 * up to the transition to RUN. 573 * 574 * XXX TODO: verify that the transition to RUN will wake up the 575 * BSS node! 576 */ 577 IEEE80211_DPRINTF(vap, IEEE80211_MSG_POWER, "%s: TIM=%d\n", __func__, set); 578 IEEE80211_LOCK(vap->iv_ic); 579 if (set == 1 && vap->iv_state == IEEE80211_S_SLEEP) { 580 ieee80211_new_state_locked(vap, IEEE80211_S_RUN, 0); 581 } 582 IEEE80211_UNLOCK(vap->iv_ic); 583} 584 585/* 586 * Timer check on whether the VAP has had any transmit activity. 587 * 588 * This may schedule a transition from _RUN -> _SLEEP if it's appropriate. 589 */ 590void 591ieee80211_sta_ps_timer_check(struct ieee80211vap *vap) 592{ 593 struct ieee80211com *ic = vap->iv_ic; 594 595 /* XXX lock assert */ 596 597 /* For no, only do this in STA mode */ 598 if (! (vap->iv_caps & IEEE80211_C_SWSLEEP)) 599 goto out; 600 601 if (vap->iv_opmode != IEEE80211_M_STA) 602 goto out; 603 604 /* If we're not at run state, bail */ 605 if (vap->iv_state != IEEE80211_S_RUN) 606 goto out; 607 608 IEEE80211_DPRINTF(vap, IEEE80211_MSG_POWER, 609 "%s: lastdata=%llu, ticks=%llu\n", 610 __func__, (unsigned long long) ic->ic_lastdata, 611 (unsigned long long) ticks); 612 613 /* If powersave is disabled on the VAP, don't bother */ 614 if (! (vap->iv_flags & IEEE80211_F_PMGTON)) 615 goto out; 616 617 /* If we've done any data within our idle interval, bail */ 618 /* XXX hard-coded to one second for now, ew! */ 619 if (time_after(ic->ic_lastdata + 500, ticks)) 620 goto out; 621 622 /* 623 * Signify we're going into power save and transition the 624 * node to powersave. 625 */ 626 if ((vap->iv_bss->ni_flags & IEEE80211_NODE_PWR_MGT) == 0) 627 vap->iv_sta_ps(vap, 1); 628 629 /* 630 * XXX The driver has to handle the fact that we're going 631 * to sleep but frames may still be transmitted; 632 * hopefully it and/or us will do the right thing and mark any 633 * transmitted frames with PWRMGT set to 1. 634 */ 635 ieee80211_new_state_locked(vap, IEEE80211_S_SLEEP, 0); 636 637 IEEE80211_DPRINTF(vap, IEEE80211_MSG_POWER, 638 "%s: time delta=%d msec\n", __func__, 639 (int) ticks_to_msecs(ticks - ic->ic_lastdata)); 640 641out: 642 return; 643} |
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