289 lines
7.2 KiB
C
289 lines
7.2 KiB
C
/*-
|
|
* Copyright (c) 2013 Adrian Chadd <adrian@FreeBSD.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer,
|
|
* without modification.
|
|
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
|
|
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
|
|
* redistribution must be conditioned upon including a substantially
|
|
* similar Disclaimer requirement for further binary redistribution.
|
|
*
|
|
* NO WARRANTY
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
|
|
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
|
|
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
|
|
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
|
* THE POSSIBILITY OF SUCH DAMAGES.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* Implement some basic spectral scan control logic.
|
|
*/
|
|
#include "opt_ath.h"
|
|
#include "opt_inet.h"
|
|
#include "opt_wlan.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/errno.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <sys/socket.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_media.h>
|
|
#include <net/if_arp.h>
|
|
#include <net/ethernet.h> /* XXX for ether_sprintf */
|
|
|
|
#include <net80211/ieee80211_var.h>
|
|
|
|
#include <net/bpf.h>
|
|
|
|
#ifdef INET
|
|
#include <netinet/in.h>
|
|
#include <netinet/if_ether.h>
|
|
#endif
|
|
|
|
#include <dev/ath/if_athvar.h>
|
|
#include <dev/ath/if_ath_spectral.h>
|
|
|
|
#include <dev/ath/ath_hal/ah_desc.h>
|
|
|
|
struct ath_spectral_state {
|
|
HAL_SPECTRAL_PARAM spectral_state;
|
|
|
|
/*
|
|
* Should we enable spectral scan upon
|
|
* each network interface reset/change?
|
|
*
|
|
* This is intended to allow spectral scan
|
|
* frame reporting during channel scans.
|
|
*
|
|
* Later on it can morph into a larger
|
|
* scale config method where it pushes
|
|
* a "channel scan" config into the hardware
|
|
* rather than just the spectral_state
|
|
* config.
|
|
*/
|
|
int spectral_enable_after_reset;
|
|
};
|
|
|
|
/*
|
|
* Methods which are required
|
|
*/
|
|
|
|
/*
|
|
* Attach spectral to the given interface
|
|
*/
|
|
int
|
|
ath_spectral_attach(struct ath_softc *sc)
|
|
{
|
|
struct ath_spectral_state *ss;
|
|
|
|
/*
|
|
* If spectral isn't supported, don't error - just
|
|
* quietly complete.
|
|
*/
|
|
if (! ath_hal_spectral_supported(sc->sc_ah))
|
|
return (0);
|
|
|
|
ss = malloc(sizeof(struct ath_spectral_state),
|
|
M_TEMP, M_WAITOK | M_ZERO);
|
|
|
|
if (ss == NULL) {
|
|
device_printf(sc->sc_dev, "%s: failed to alloc memory\n",
|
|
__func__);
|
|
return (-ENOMEM);
|
|
}
|
|
|
|
sc->sc_spectral = ss;
|
|
|
|
(void) ath_hal_spectral_get_config(sc->sc_ah, &ss->spectral_state);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Detach spectral from the given interface
|
|
*/
|
|
int
|
|
ath_spectral_detach(struct ath_softc *sc)
|
|
{
|
|
|
|
if (! ath_hal_spectral_supported(sc->sc_ah))
|
|
return (0);
|
|
|
|
if (sc->sc_spectral != NULL) {
|
|
free(sc->sc_spectral, M_TEMP);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Check whether spectral needs enabling and if so,
|
|
* flip it on.
|
|
*/
|
|
int
|
|
ath_spectral_enable(struct ath_softc *sc, struct ieee80211_channel *ch)
|
|
{
|
|
struct ath_spectral_state *ss = sc->sc_spectral;
|
|
|
|
/* Default to disable spectral PHY reporting */
|
|
sc->sc_dospectral = 0;
|
|
|
|
if (ss == NULL)
|
|
return (0);
|
|
|
|
if (ss->spectral_enable_after_reset) {
|
|
ath_hal_spectral_configure(sc->sc_ah,
|
|
&ss->spectral_state);
|
|
(void) ath_hal_spectral_start(sc->sc_ah);
|
|
sc->sc_dospectral = 1;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Handle ioctl requests from the diagnostic interface.
|
|
*
|
|
* The initial part of this code resembles ath_ioctl_diag();
|
|
* it's likely a good idea to reduce duplication between
|
|
* these two routines.
|
|
*/
|
|
int
|
|
ath_ioctl_spectral(struct ath_softc *sc, struct ath_diag *ad)
|
|
{
|
|
unsigned int id = ad->ad_id & ATH_DIAG_ID;
|
|
void *indata = NULL;
|
|
void *outdata = NULL;
|
|
u_int32_t insize = ad->ad_in_size;
|
|
u_int32_t outsize = ad->ad_out_size;
|
|
int error = 0;
|
|
HAL_SPECTRAL_PARAM peout;
|
|
HAL_SPECTRAL_PARAM *pe;
|
|
struct ath_spectral_state *ss = sc->sc_spectral;
|
|
int val;
|
|
|
|
if (! ath_hal_spectral_supported(sc->sc_ah))
|
|
return (EINVAL);
|
|
|
|
if (ad->ad_id & ATH_DIAG_IN) {
|
|
/*
|
|
* Copy in data.
|
|
*/
|
|
indata = malloc(insize, M_TEMP, M_NOWAIT);
|
|
if (indata == NULL) {
|
|
error = ENOMEM;
|
|
goto bad;
|
|
}
|
|
error = copyin(ad->ad_in_data, indata, insize);
|
|
if (error)
|
|
goto bad;
|
|
}
|
|
if (ad->ad_id & ATH_DIAG_DYN) {
|
|
/*
|
|
* Allocate a buffer for the results (otherwise the HAL
|
|
* returns a pointer to a buffer where we can read the
|
|
* results). Note that we depend on the HAL leaving this
|
|
* pointer for us to use below in reclaiming the buffer;
|
|
* may want to be more defensive.
|
|
*/
|
|
outdata = malloc(outsize, M_TEMP, M_NOWAIT);
|
|
if (outdata == NULL) {
|
|
error = ENOMEM;
|
|
goto bad;
|
|
}
|
|
}
|
|
switch (id) {
|
|
case SPECTRAL_CONTROL_GET_PARAMS:
|
|
memset(&peout, 0, sizeof(peout));
|
|
outsize = sizeof(HAL_SPECTRAL_PARAM);
|
|
ath_hal_spectral_get_config(sc->sc_ah, &peout);
|
|
pe = (HAL_SPECTRAL_PARAM *) outdata;
|
|
memcpy(pe, &peout, sizeof(*pe));
|
|
break;
|
|
case SPECTRAL_CONTROL_SET_PARAMS:
|
|
if (insize < sizeof(HAL_SPECTRAL_PARAM)) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
pe = (HAL_SPECTRAL_PARAM *) indata;
|
|
ath_hal_spectral_configure(sc->sc_ah, pe);
|
|
/* Save a local copy of the updated parameters */
|
|
ath_hal_spectral_get_config(sc->sc_ah,
|
|
&ss->spectral_state);
|
|
break;
|
|
case SPECTRAL_CONTROL_START:
|
|
ath_hal_spectral_configure(sc->sc_ah,
|
|
&ss->spectral_state);
|
|
(void) ath_hal_spectral_start(sc->sc_ah);
|
|
sc->sc_dospectral = 1;
|
|
/* XXX need to update the PHY mask in the driver */
|
|
break;
|
|
case SPECTRAL_CONTROL_STOP:
|
|
(void) ath_hal_spectral_stop(sc->sc_ah);
|
|
sc->sc_dospectral = 0;
|
|
/* XXX need to update the PHY mask in the driver */
|
|
break;
|
|
case SPECTRAL_CONTROL_ENABLE_AT_RESET:
|
|
if (insize < sizeof(int)) {
|
|
device_printf(sc->sc_dev, "%d != %d\n",
|
|
insize,
|
|
(int) sizeof(int));
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
if (indata == NULL) {
|
|
device_printf(sc->sc_dev, "indata=NULL\n");
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
val = * ((int *) indata);
|
|
if (val == 0)
|
|
ss->spectral_enable_after_reset = 0;
|
|
else
|
|
ss->spectral_enable_after_reset = 1;
|
|
break;
|
|
case SPECTRAL_CONTROL_ENABLE:
|
|
/* XXX TODO */
|
|
case SPECTRAL_CONTROL_DISABLE:
|
|
/* XXX TODO */
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
}
|
|
if (outsize < ad->ad_out_size)
|
|
ad->ad_out_size = outsize;
|
|
if (outdata && copyout(outdata, ad->ad_out_data, ad->ad_out_size))
|
|
error = EFAULT;
|
|
bad:
|
|
if ((ad->ad_id & ATH_DIAG_IN) && indata != NULL)
|
|
free(indata, M_TEMP);
|
|
if ((ad->ad_id & ATH_DIAG_DYN) && outdata != NULL)
|
|
free(outdata, M_TEMP);
|
|
return (error);
|
|
}
|
|
|