76039bc84f
to this event, adding if_var.h to files that do need it. Also, include all includes that now are included due to implicit pollution via if_var.h Sponsored by: Netflix Sponsored by: Nginx, Inc.
291 lines
7.3 KiB
C
291 lines
7.3 KiB
C
/*-
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* Copyright (c) 2013 Adrian Chadd <adrian@FreeBSD.org>
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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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* $FreeBSD$
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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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* Implement some basic spectral scan control logic.
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*/
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#include "opt_ath.h"
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#include "opt_inet.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/kernel.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/mutex.h>
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#include <sys/errno.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/bus.h>
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#include <sys/socket.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_media.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h> /* XXX for ether_sprintf */
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#include <net80211/ieee80211_var.h>
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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/if_ath_spectral.h>
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#include <dev/ath/ath_hal/ah_desc.h>
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struct ath_spectral_state {
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HAL_SPECTRAL_PARAM spectral_state;
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/*
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* Should we enable spectral scan upon
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* each network interface reset/change?
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*
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* This is intended to allow spectral scan
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* frame reporting during channel scans.
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*
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* Later on it can morph into a larger
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* scale config method where it pushes
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* a "channel scan" config into the hardware
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* rather than just the spectral_state
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* config.
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*/
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int spectral_enable_after_reset;
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};
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/*
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* Methods which are required
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*/
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/*
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* Attach spectral to the given interface
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*/
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int
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ath_spectral_attach(struct ath_softc *sc)
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{
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struct ath_spectral_state *ss;
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/*
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* If spectral isn't supported, don't error - just
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* quietly complete.
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*/
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if (! ath_hal_spectral_supported(sc->sc_ah))
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return (0);
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ss = malloc(sizeof(struct ath_spectral_state),
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M_TEMP, M_WAITOK | M_ZERO);
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if (ss == NULL) {
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device_printf(sc->sc_dev, "%s: failed to alloc memory\n",
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__func__);
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return (-ENOMEM);
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}
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sc->sc_spectral = ss;
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(void) ath_hal_spectral_get_config(sc->sc_ah, &ss->spectral_state);
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return (0);
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}
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/*
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* Detach spectral from the given interface
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*/
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int
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ath_spectral_detach(struct ath_softc *sc)
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{
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if (! ath_hal_spectral_supported(sc->sc_ah))
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return (0);
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if (sc->sc_spectral != NULL) {
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free(sc->sc_spectral, M_TEMP);
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}
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return (0);
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}
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/*
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* Check whether spectral needs enabling and if so,
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* flip it on.
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*/
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int
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ath_spectral_enable(struct ath_softc *sc, struct ieee80211_channel *ch)
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{
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struct ath_spectral_state *ss = sc->sc_spectral;
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/* Default to disable spectral PHY reporting */
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sc->sc_dospectral = 0;
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if (ss == NULL)
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return (0);
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if (ss->spectral_enable_after_reset) {
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ath_hal_spectral_configure(sc->sc_ah,
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&ss->spectral_state);
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(void) ath_hal_spectral_start(sc->sc_ah);
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sc->sc_dospectral = 1;
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}
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return (0);
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}
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/*
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* Handle ioctl requests from the diagnostic interface.
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*
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* The initial part of this code resembles ath_ioctl_diag();
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* it's likely a good idea to reduce duplication between
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* these two routines.
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*/
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int
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ath_ioctl_spectral(struct ath_softc *sc, struct ath_diag *ad)
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{
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unsigned 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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HAL_SPECTRAL_PARAM peout;
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HAL_SPECTRAL_PARAM *pe;
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struct ath_spectral_state *ss = sc->sc_spectral;
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int val;
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if (! ath_hal_spectral_supported(sc->sc_ah))
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return (EINVAL);
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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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switch (id) {
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case SPECTRAL_CONTROL_GET_PARAMS:
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memset(&peout, 0, sizeof(peout));
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outsize = sizeof(HAL_SPECTRAL_PARAM);
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ath_hal_spectral_get_config(sc->sc_ah, &peout);
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pe = (HAL_SPECTRAL_PARAM *) outdata;
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memcpy(pe, &peout, sizeof(*pe));
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break;
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case SPECTRAL_CONTROL_SET_PARAMS:
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if (insize < sizeof(HAL_SPECTRAL_PARAM)) {
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error = EINVAL;
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break;
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}
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pe = (HAL_SPECTRAL_PARAM *) indata;
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ath_hal_spectral_configure(sc->sc_ah, pe);
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/* Save a local copy of the updated parameters */
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ath_hal_spectral_get_config(sc->sc_ah,
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&ss->spectral_state);
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break;
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case SPECTRAL_CONTROL_START:
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ath_hal_spectral_configure(sc->sc_ah,
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&ss->spectral_state);
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(void) ath_hal_spectral_start(sc->sc_ah);
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sc->sc_dospectral = 1;
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/* XXX need to update the PHY mask in the driver */
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break;
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case SPECTRAL_CONTROL_STOP:
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(void) ath_hal_spectral_stop(sc->sc_ah);
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sc->sc_dospectral = 0;
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/* XXX need to update the PHY mask in the driver */
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break;
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case SPECTRAL_CONTROL_ENABLE_AT_RESET:
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if (insize < sizeof(int)) {
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device_printf(sc->sc_dev, "%d != %d\n",
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insize,
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(int) sizeof(int));
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error = EINVAL;
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break;
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}
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if (indata == NULL) {
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device_printf(sc->sc_dev, "indata=NULL\n");
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error = EINVAL;
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break;
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}
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val = * ((int *) indata);
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if (val == 0)
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ss->spectral_enable_after_reset = 0;
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else
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ss->spectral_enable_after_reset = 1;
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break;
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case SPECTRAL_CONTROL_ENABLE:
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/* XXX TODO */
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case SPECTRAL_CONTROL_DISABLE:
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/* XXX TODO */
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break;
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default:
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error = EINVAL;
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}
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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 && copyout(outdata, ad->ad_out_data, ad->ad_out_size))
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error = EFAULT;
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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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