296 lines
7.1 KiB
C
296 lines
7.1 KiB
C
/*-
|
|
* Copyright (c) 2011 Adrian Chadd, Xenion Pty Ltd
|
|
* 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("$FreeBSD$");
|
|
|
|
/*
|
|
* This implements an empty DFS module.
|
|
*/
|
|
#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/malloc.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_var.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_athdfs.h>
|
|
|
|
#include <dev/ath/ath_hal/ah_desc.h>
|
|
|
|
/*
|
|
* Methods which are required
|
|
*/
|
|
|
|
/*
|
|
* Attach DFS to the given interface
|
|
*/
|
|
int
|
|
ath_dfs_attach(struct ath_softc *sc)
|
|
{
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Detach DFS from the given interface
|
|
*/
|
|
int
|
|
ath_dfs_detach(struct ath_softc *sc)
|
|
{
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Enable radar check. Return 1 if the driver should
|
|
* enable radar PHY errors, or 0 if not.
|
|
*/
|
|
int
|
|
ath_dfs_radar_enable(struct ath_softc *sc, struct ieee80211_channel *chan)
|
|
{
|
|
#if 0
|
|
HAL_PHYERR_PARAM pe;
|
|
|
|
/* Check if the hardware supports radar reporting */
|
|
/* XXX TODO: migrate HAL_CAP_RADAR/HAL_CAP_AR to somewhere public! */
|
|
if (ath_hal_getcapability(sc->sc_ah,
|
|
HAL_CAP_PHYDIAG, 0, NULL) != HAL_OK)
|
|
return (0);
|
|
|
|
/* Check if the current channel is radar-enabled */
|
|
if (! IEEE80211_IS_CHAN_DFS(chan))
|
|
return (0);
|
|
|
|
/* Fetch the default parameters */
|
|
memset(&pe, '\0', sizeof(pe));
|
|
if (! ath_hal_getdfsdefaultthresh(sc->sc_ah, &pe))
|
|
return (0);
|
|
|
|
/* Enable radar PHY error reporting */
|
|
sc->sc_dodfs = 1;
|
|
|
|
/* Tell the hardware to enable radar reporting */
|
|
pe.pe_enabled = 1;
|
|
|
|
/* Flip on extension channel events only if doing HT40 */
|
|
if (IEEE80211_IS_CHAN_HT40(chan))
|
|
pe.pe_extchannel = 1;
|
|
else
|
|
pe.pe_extchannel = 0;
|
|
|
|
ath_hal_enabledfs(sc->sc_ah, &pe);
|
|
|
|
/*
|
|
* Disable strong signal fast diversity - needed for
|
|
* AR5212 and similar PHYs for reliable short pulse
|
|
* duration.
|
|
*/
|
|
(void) ath_hal_setcapability(sc->sc_ah, HAL_CAP_DIVERSITY, 2, 0, NULL);
|
|
|
|
return (1);
|
|
#else
|
|
return (0);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Explicity disable radar reporting.
|
|
*
|
|
* Return 0 if it was disabled, < 0 on error.
|
|
*/
|
|
int
|
|
ath_dfs_radar_disable(struct ath_softc *sc)
|
|
{
|
|
#if 0
|
|
HAL_PHYERR_PARAM pe;
|
|
|
|
(void) ath_hal_getdfsthresh(sc->sc_ah, &pe);
|
|
pe.pe_enabled = 0;
|
|
(void) ath_hal_enabledfs(sc->sc_ah, &pe);
|
|
return (0);
|
|
#else
|
|
return (0);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Process DFS related PHY errors
|
|
*
|
|
* The mbuf is not "ours" and if we want a copy, we have
|
|
* to take a copy. It'll be freed after this function returns.
|
|
*/
|
|
void
|
|
ath_dfs_process_phy_err(struct ath_softc *sc, struct mbuf *m,
|
|
uint64_t tsf, struct ath_rx_status *rxstat)
|
|
{
|
|
|
|
}
|
|
|
|
/*
|
|
* Process the radar events and determine whether a DFS event has occurred.
|
|
*
|
|
* This is designed to run outside of the RX processing path.
|
|
* The RX path will call ath_dfs_tasklet_needed() to see whether
|
|
* the task/callback running this routine needs to be called.
|
|
*/
|
|
int
|
|
ath_dfs_process_radar_event(struct ath_softc *sc,
|
|
struct ieee80211_channel *chan)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Determine whether the DFS check task needs to be queued.
|
|
*
|
|
* This is called in the RX task when the current batch of packets
|
|
* have been received. It will return whether there are any radar
|
|
* events for ath_dfs_process_radar_event() to handle.
|
|
*/
|
|
int
|
|
ath_dfs_tasklet_needed(struct ath_softc *sc, struct ieee80211_channel *chan)
|
|
{
|
|
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_phyerr(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_PHYERR_PARAM peout;
|
|
HAL_PHYERR_PARAM *pe;
|
|
|
|
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 DFS_SET_THRESH:
|
|
if (insize < sizeof(HAL_PHYERR_PARAM)) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
pe = (HAL_PHYERR_PARAM *) indata;
|
|
ath_hal_enabledfs(sc->sc_ah, pe);
|
|
break;
|
|
case DFS_GET_THRESH:
|
|
memset(&peout, 0, sizeof(peout));
|
|
outsize = sizeof(HAL_PHYERR_PARAM);
|
|
ath_hal_getdfsthresh(sc->sc_ah, &peout);
|
|
pe = (HAL_PHYERR_PARAM *) outdata;
|
|
memcpy(pe, &peout, sizeof(*pe));
|
|
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);
|
|
}
|
|
|
|
/*
|
|
* Get the current DFS thresholds from the HAL
|
|
*/
|
|
int
|
|
ath_dfs_get_thresholds(struct ath_softc *sc, HAL_PHYERR_PARAM *param)
|
|
{
|
|
ath_hal_getdfsthresh(sc->sc_ah, param);
|
|
return (1);
|
|
}
|