308 lines
8.1 KiB
C
308 lines
8.1 KiB
C
/*-
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* Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Driver for the Atheros Wireless LAN controller.
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*
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* This software is derived from work of Atsushi Onoe; his contribution
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* is greatly appreciated.
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*/
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#include "opt_inet.h"
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#include "opt_ath.h"
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/*
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* This is needed for register operations which are performed
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* by the driver - eg, calls to ath_hal_gettsf32().
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*
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* It's also required for any AH_DEBUG checks in here, eg the
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* module dependencies.
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*/
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#include "opt_ah.h"
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#include "opt_wlan.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/sysctl.h>
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#include <sys/mbuf.h>
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#include <sys/malloc.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/errno.h>
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#include <sys/callout.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <sys/kthread.h>
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#include <sys/taskqueue.h>
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#include <sys/priv.h>
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#include <sys/module.h>
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#include <sys/ktr.h>
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#include <sys/smp.h> /* for mp_ncpus */
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#include <machine/bus.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_llc.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_regdomain.h>
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#ifdef IEEE80211_SUPPORT_SUPERG
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#include <net80211/ieee80211_superg.h>
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#endif
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#ifdef IEEE80211_SUPPORT_TDMA
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#include <net80211/ieee80211_tdma.h>
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#endif
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#include <net/bpf.h>
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#endif
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#include <dev/ath/if_athvar.h>
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#include <dev/ath/ath_hal/ah_devid.h> /* XXX for softled */
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#include <dev/ath/ath_hal/ah_diagcodes.h>
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#include <dev/ath/if_ath_debug.h>
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#include <dev/ath/if_ath_misc.h>
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#include <dev/ath/if_ath_btcoex.h>
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#include <dev/ath/if_ath_spectral.h>
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#include <dev/ath/if_ath_lna_div.h>
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#include <dev/ath/if_athdfs.h>
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#ifdef IEEE80211_SUPPORT_TDMA
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#include <dev/ath/if_ath_tdma.h>
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#endif
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#include <dev/ath/if_ath_ioctl.h>
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/*
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* ioctl() related pieces.
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*
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* Some subsystems (eg spectral, dfs) have their own ioctl method which
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* we call.
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*/
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/*
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* Fetch the rate control statistics for the given node.
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*/
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static int
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ath_ioctl_ratestats(struct ath_softc *sc, struct ath_rateioctl *rs)
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{
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struct ath_node *an;
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struct ieee80211com *ic = &sc->sc_ic;
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struct ieee80211_node *ni;
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int error = 0;
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/* Perform a lookup on the given node */
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ni = ieee80211_find_node(&ic->ic_sta, rs->is_u.macaddr);
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if (ni == NULL) {
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error = EINVAL;
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goto bad;
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}
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/* Lock the ath_node */
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an = ATH_NODE(ni);
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ATH_NODE_LOCK(an);
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/* Fetch the rate control stats for this node */
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error = ath_rate_fetch_node_stats(sc, an, rs);
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/* No matter what happens here, just drop through */
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/* Unlock the ath_node */
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ATH_NODE_UNLOCK(an);
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/* Unref the node */
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ieee80211_node_decref(ni);
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bad:
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return (error);
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}
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#ifdef ATH_DIAGAPI
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/*
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* Diagnostic interface to the HAL. This is used by various
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* tools to do things like retrieve register contents for
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* debugging. The mechanism is intentionally opaque so that
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* it can change frequently w/o concern for compatibility.
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*/
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static int
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ath_ioctl_diag(struct ath_softc *sc, struct ath_diag *ad)
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{
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struct ath_hal *ah = sc->sc_ah;
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u_int id = ad->ad_id & ATH_DIAG_ID;
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void *indata = NULL;
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void *outdata = NULL;
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u_int32_t insize = ad->ad_in_size;
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u_int32_t outsize = ad->ad_out_size;
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int error = 0;
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if (ad->ad_id & ATH_DIAG_IN) {
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/*
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* Copy in data.
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*/
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indata = malloc(insize, M_TEMP, M_NOWAIT);
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if (indata == NULL) {
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error = ENOMEM;
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goto bad;
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}
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error = copyin(ad->ad_in_data, indata, insize);
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if (error)
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goto bad;
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}
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if (ad->ad_id & ATH_DIAG_DYN) {
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/*
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* Allocate a buffer for the results (otherwise the HAL
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* returns a pointer to a buffer where we can read the
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* results). Note that we depend on the HAL leaving this
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* pointer for us to use below in reclaiming the buffer;
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* may want to be more defensive.
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*/
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outdata = malloc(outsize, M_TEMP, M_NOWAIT);
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if (outdata == NULL) {
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error = ENOMEM;
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goto bad;
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}
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}
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ATH_LOCK(sc);
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if (id != HAL_DIAG_REGS)
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ath_power_set_power_state(sc, HAL_PM_AWAKE);
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ATH_UNLOCK(sc);
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if (ath_hal_getdiagstate(ah, id, indata, insize, &outdata, &outsize)) {
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if (outsize < ad->ad_out_size)
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ad->ad_out_size = outsize;
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if (outdata != NULL)
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error = copyout(outdata, ad->ad_out_data,
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ad->ad_out_size);
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} else {
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error = EINVAL;
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}
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ATH_LOCK(sc);
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if (id != HAL_DIAG_REGS)
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ath_power_restore_power_state(sc);
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ATH_UNLOCK(sc);
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bad:
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if ((ad->ad_id & ATH_DIAG_IN) && indata != NULL)
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free(indata, M_TEMP);
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if ((ad->ad_id & ATH_DIAG_DYN) && outdata != NULL)
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free(outdata, M_TEMP);
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return error;
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}
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#endif /* ATH_DIAGAPI */
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int
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ath_ioctl(struct ieee80211com *ic, u_long cmd, void *data)
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{
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struct ifreq *ifr = data;
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struct ath_softc *sc = ic->ic_softc;
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switch (cmd) {
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case SIOCGATHSTATS: {
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struct ieee80211vap *vap;
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struct ifnet *ifp;
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const HAL_RATE_TABLE *rt;
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/* NB: embed these numbers to get a consistent view */
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sc->sc_stats.ast_tx_packets = 0;
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sc->sc_stats.ast_rx_packets = 0;
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TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
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ifp = vap->iv_ifp;
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sc->sc_stats.ast_tx_packets += ifp->if_get_counter(ifp,
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IFCOUNTER_OPACKETS);
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sc->sc_stats.ast_rx_packets += ifp->if_get_counter(ifp,
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IFCOUNTER_IPACKETS);
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}
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sc->sc_stats.ast_tx_rssi = ATH_RSSI(sc->sc_halstats.ns_avgtxrssi);
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sc->sc_stats.ast_rx_rssi = ATH_RSSI(sc->sc_halstats.ns_avgrssi);
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#ifdef IEEE80211_SUPPORT_TDMA
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sc->sc_stats.ast_tdma_tsfadjp = TDMA_AVG(sc->sc_avgtsfdeltap);
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sc->sc_stats.ast_tdma_tsfadjm = TDMA_AVG(sc->sc_avgtsfdeltam);
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#endif
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rt = sc->sc_currates;
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sc->sc_stats.ast_tx_rate =
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rt->info[sc->sc_txrix].dot11Rate &~ IEEE80211_RATE_BASIC;
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if (rt->info[sc->sc_txrix].phy & IEEE80211_T_HT)
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sc->sc_stats.ast_tx_rate |= IEEE80211_RATE_MCS;
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return copyout(&sc->sc_stats,
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ifr->ifr_data, sizeof (sc->sc_stats));
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}
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case SIOCGATHAGSTATS:
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return copyout(&sc->sc_aggr_stats,
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ifr->ifr_data, sizeof (sc->sc_aggr_stats));
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case SIOCZATHSTATS: {
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int error;
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error = priv_check(curthread, PRIV_DRIVER);
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if (error == 0) {
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memset(&sc->sc_stats, 0, sizeof(sc->sc_stats));
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memset(&sc->sc_aggr_stats, 0,
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sizeof(sc->sc_aggr_stats));
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memset(&sc->sc_intr_stats, 0,
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sizeof(sc->sc_intr_stats));
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}
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return (error);
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}
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#ifdef ATH_DIAGAPI
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case SIOCGATHDIAG:
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return (ath_ioctl_diag(sc, data));
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case SIOCGATHPHYERR:
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return (ath_ioctl_phyerr(sc, data));
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#endif
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case SIOCGATHSPECTRAL:
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return (ath_ioctl_spectral(sc, data));
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case SIOCGATHNODERATESTATS:
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return (ath_ioctl_ratestats(sc, data));
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default:
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/*
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* This signals the net80211 layer that we didn't handle this
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* ioctl.
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*/
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return (ENOTTY);
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}
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}
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