126 lines
3.3 KiB
C
126 lines
3.3 KiB
C
/* $OpenBSD: if_urtwn.c,v 1.16 2011/02/10 17:26:40 jakemsr Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
|
|
* Copyright (c) 2014 Kevin Lo <kevlo@FreeBSD.org>
|
|
* Copyright (c) 2015-2016 Andriy Voskoboinyk <avos@FreeBSD.org>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#include "opt_wlan.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/taskqueue.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/endian.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/ethernet.h>
|
|
#include <net/if_media.h>
|
|
|
|
#include <net80211/ieee80211_var.h>
|
|
#include <net80211/ieee80211_radiotap.h>
|
|
|
|
#include <dev/rtwn/if_rtwnvar.h>
|
|
|
|
#include <dev/rtwn/if_rtwn_calib.h>
|
|
#include <dev/rtwn/if_rtwn_debug.h>
|
|
#include <dev/rtwn/if_rtwn_task.h>
|
|
|
|
static void
|
|
rtwn_temp_calib(struct rtwn_softc *sc)
|
|
{
|
|
uint8_t temp;
|
|
|
|
RTWN_ASSERT_LOCKED(sc);
|
|
|
|
if (!(sc->sc_flags & RTWN_TEMP_MEASURED)) {
|
|
/* Start measuring temperature. */
|
|
RTWN_DPRINTF(sc, RTWN_DEBUG_TEMP,
|
|
"%s: start measuring temperature\n", __func__);
|
|
rtwn_temp_measure(sc);
|
|
sc->sc_flags |= RTWN_TEMP_MEASURED;
|
|
return;
|
|
}
|
|
sc->sc_flags &= ~RTWN_TEMP_MEASURED;
|
|
|
|
/* Read measured temperature. */
|
|
temp = rtwn_temp_read(sc);
|
|
if (temp == 0) { /* Read failed, skip. */
|
|
RTWN_DPRINTF(sc, RTWN_DEBUG_TEMP,
|
|
"%s: temperature read failed, skipping\n", __func__);
|
|
return;
|
|
}
|
|
|
|
RTWN_DPRINTF(sc, RTWN_DEBUG_TEMP,
|
|
"temperature: previous %u, current %u\n",
|
|
sc->thcal_temp, temp);
|
|
|
|
/*
|
|
* Redo LC/IQ calibration if temperature changed significantly since
|
|
* last calibration.
|
|
*/
|
|
if (sc->thcal_temp == 0xff) {
|
|
/* efuse value is absent; do LCK at initial status. */
|
|
rtwn_lc_calib(sc);
|
|
|
|
sc->thcal_temp = temp;
|
|
} else if (abs(temp - sc->thcal_temp) > sc->temp_delta) {
|
|
RTWN_DPRINTF(sc, RTWN_DEBUG_TEMP,
|
|
"%s: LC/IQ calib triggered by temp: %u -> %u\n",
|
|
__func__, sc->thcal_temp, temp);
|
|
|
|
rtwn_lc_calib(sc);
|
|
rtwn_iq_calib(sc);
|
|
|
|
/* Record temperature of last calibration. */
|
|
sc->thcal_temp = temp;
|
|
}
|
|
}
|
|
|
|
static void
|
|
rtwn_calib_cb(struct rtwn_softc *sc, union sec_param *data)
|
|
{
|
|
/* Do temperature compensation. */
|
|
rtwn_temp_calib(sc);
|
|
|
|
#ifndef RTWN_WITHOUT_UCODE
|
|
if (sc->sc_ratectl == RTWN_RATECTL_FW) {
|
|
/* Refresh per-node RSSI. */
|
|
rtwn_set_rssi(sc);
|
|
}
|
|
#endif
|
|
|
|
if (sc->vaps_running > sc->monvaps_running)
|
|
callout_reset(&sc->sc_calib_to, 2*hz, rtwn_calib_to, sc);
|
|
}
|
|
|
|
void
|
|
rtwn_calib_to(void *arg)
|
|
{
|
|
struct rtwn_softc *sc = arg;
|
|
|
|
/* Do it in a process context. */
|
|
rtwn_cmd_sleepable(sc, NULL, 0, rtwn_calib_cb);
|
|
}
|