svn commit: r310867 - in head/sys: dev/rtwn dev/rtwn/rtl8812a dev/rtwn/rtl8821a dev/rtwn/rtl8821a/usb modules/rtwn_usb
Andriy Voskoboinyk
avos at FreeBSD.org
Fri Dec 30 22:24:04 UTC 2016
Author: avos
Date: Fri Dec 30 22:24:01 2016
New Revision: 310867
URL: https://svnweb.freebsd.org/changeset/base/310867
Log:
rtwn: add (untested) radar detection support for RTL8821AU
(disabled by default).
To enable it, dev.rtwn.%d.radar_detection tunable need to be set
to a nonzero value.
Tested with RTL8821AU, AP mode (no radar events were seen - so,
I have no idea if it is really correct / working)
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D8903
Added:
head/sys/dev/rtwn/rtl8821a/usb/r21au_dfs.c (contents, props changed)
Modified:
head/sys/dev/rtwn/if_rtwn.c
head/sys/dev/rtwn/if_rtwn_beacon.c
head/sys/dev/rtwn/if_rtwn_beacon.h
head/sys/dev/rtwn/if_rtwn_debug.h
head/sys/dev/rtwn/if_rtwnvar.h
head/sys/dev/rtwn/rtl8812a/r12a_var.h
head/sys/dev/rtwn/rtl8821a/r21a_init.c
head/sys/dev/rtwn/rtl8821a/usb/r21au.h
head/sys/dev/rtwn/rtl8821a/usb/r21au_attach.c
head/sys/modules/rtwn_usb/Makefile
Modified: head/sys/dev/rtwn/if_rtwn.c
==============================================================================
--- head/sys/dev/rtwn/if_rtwn.c Fri Dec 30 22:18:22 2016 (r310866)
+++ head/sys/dev/rtwn/if_rtwn.c Fri Dec 30 22:24:01 2016 (r310867)
@@ -580,6 +580,8 @@ rtwn_vap_create(struct ieee80211com *ic,
vap->iv_ampdu_density = IEEE80211_HTCAP_MPDUDENSITY_16;
vap->iv_ampdu_rxmax = IEEE80211_HTCAP_MAXRXAMPDU_64K;
+ TIMEOUT_TASK_INIT(taskqueue_thread, &uvp->tx_beacon_csa, 0,
+ rtwn_tx_beacon_csa, vap);
if (opmode == IEEE80211_M_IBSS) {
uvp->recv_mgmt = vap->iv_recv_mgmt;
vap->iv_recv_mgmt = rtwn_adhoc_recv_mgmt;
@@ -1067,9 +1069,26 @@ rtwn_newstate(struct ieee80211vap *vap,
} else
early_newstate = 0;
+ if (ostate == IEEE80211_S_CSA) {
+ taskqueue_cancel_timeout(taskqueue_thread,
+ &uvp->tx_beacon_csa, NULL);
+
+ /*
+ * In multi-vap case second counter may not be cleared
+ * properly.
+ */
+ vap->iv_csa_count = 0;
+ }
IEEE80211_UNLOCK(ic);
RTWN_LOCK(sc);
- if (ostate == IEEE80211_S_RUN) {
+
+ if (ostate == IEEE80211_S_CSA) {
+ /* Unblock all queues (multi-vap case). */
+ rtwn_write_1(sc, R92C_TXPAUSE, 0);
+ }
+
+ if ((ostate == IEEE80211_S_RUN && nstate != IEEE80211_S_CSA) ||
+ ostate == IEEE80211_S_CSA) {
sc->vaps_running--;
/* Set media status to 'No Link'. */
@@ -1141,6 +1160,11 @@ rtwn_newstate(struct ieee80211vap *vap,
sc->vaps_running++;
break;
+ case IEEE80211_S_CSA:
+ /* Block all Tx queues (except beacon queue). */
+ rtwn_setbits_1(sc, R92C_TXPAUSE, 0,
+ R92C_TX_QUEUE_AC | R92C_TX_QUEUE_MGT | R92C_TX_QUEUE_HIGH);
+ break;
default:
break;
}
Modified: head/sys/dev/rtwn/if_rtwn_beacon.c
==============================================================================
--- head/sys/dev/rtwn/if_rtwn_beacon.c Fri Dec 30 22:18:22 2016 (r310866)
+++ head/sys/dev/rtwn/if_rtwn_beacon.c Fri Dec 30 22:24:01 2016 (r310867)
@@ -160,7 +160,8 @@ rtwn_tx_beacon(struct rtwn_softc *sc, st
void
rtwn_update_beacon(struct ieee80211vap *vap, int item)
{
- struct rtwn_softc *sc = vap->iv_ic->ic_softc;
+ struct ieee80211com *ic = vap->iv_ic;
+ struct rtwn_softc *sc = ic->ic_softc;
struct rtwn_vap *uvp = RTWN_VAP(vap);
struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
struct ieee80211_node *ni = vap->iv_bss;
@@ -176,21 +177,71 @@ rtwn_update_beacon(struct ieee80211vap *
return;
}
}
- rtwn_beacon_update_begin(sc, vap);
- RTWN_UNLOCK(sc);
- if (item == IEEE80211_BEACON_TIM)
+ RTWN_DPRINTF(sc, RTWN_DEBUG_BEACON,
+ "%s: vap id %d, iv_csa_count %d, ic_csa_count %d, item %d\n",
+ __func__, uvp->id, vap->iv_csa_count, ic->ic_csa_count, item);
+
+ switch (item) {
+ case IEEE80211_BEACON_CSA:
+ if (vap->iv_csa_count != ic->ic_csa_count) {
+ /*
+ * XXX two APs with different beacon intervals
+ * are not handled properly.
+ */
+ /* XXX check TBTT? */
+ taskqueue_enqueue_timeout(taskqueue_thread,
+ &uvp->tx_beacon_csa,
+ msecs_to_ticks(ni->ni_intval));
+ }
+ break;
+ case IEEE80211_BEACON_TIM:
mcast = 1; /* XXX */
+ break;
+ default:
+ break;
+ }
setbit(bo->bo_flags, item);
+
+ rtwn_beacon_update_begin(sc, vap);
+ RTWN_UNLOCK(sc);
+
ieee80211_beacon_update(ni, uvp->bcn_mbuf, mcast);
+ /* XXX clear manually */
+ clrbit(bo->bo_flags, IEEE80211_BEACON_CSA);
+
RTWN_LOCK(sc);
rtwn_tx_beacon(sc, uvp);
rtwn_beacon_update_end(sc, vap);
RTWN_UNLOCK(sc);
}
+void
+rtwn_tx_beacon_csa(void *arg, int npending __unused)
+{
+ struct ieee80211vap *vap = arg;
+ struct ieee80211com *ic = vap->iv_ic;
+ struct rtwn_softc *sc = ic->ic_softc;
+ struct rtwn_vap *rvp = RTWN_VAP(vap);
+
+ KASSERT (rvp->id == 0 || rvp->id == 1,
+ ("wrong port id %d\n", rvp->id));
+
+ IEEE80211_LOCK(ic);
+ if (ic->ic_flags & IEEE80211_F_CSAPENDING) {
+ RTWN_DPRINTF(sc, RTWN_DEBUG_BEACON,
+ "%s: vap id %d, iv_csa_count %d, ic_csa_count %d\n",
+ __func__, rvp->id, vap->iv_csa_count, ic->ic_csa_count);
+
+ rtwn_update_beacon(vap, IEEE80211_BEACON_CSA);
+ }
+ IEEE80211_UNLOCK(ic);
+
+ (void) rvp;
+}
+
int
rtwn_tx_beacon_check(struct rtwn_softc *sc, struct rtwn_vap *uvp)
{
Modified: head/sys/dev/rtwn/if_rtwn_beacon.h
==============================================================================
--- head/sys/dev/rtwn/if_rtwn_beacon.h Fri Dec 30 22:18:22 2016 (r310866)
+++ head/sys/dev/rtwn/if_rtwn_beacon.h Fri Dec 30 22:24:01 2016 (r310867)
@@ -22,6 +22,7 @@
void rtwn_switch_bcnq(struct rtwn_softc *, int);
int rtwn_setup_beacon(struct rtwn_softc *, struct ieee80211_node *);
void rtwn_update_beacon(struct ieee80211vap *, int);
+void rtwn_tx_beacon_csa(void *arg, int);
int rtwn_tx_beacon_check(struct rtwn_softc *, struct rtwn_vap *);
#endif /* IF_RTWN_BEACON_H */
Modified: head/sys/dev/rtwn/if_rtwn_debug.h
==============================================================================
--- head/sys/dev/rtwn/if_rtwn_debug.h Fri Dec 30 22:18:22 2016 (r310866)
+++ head/sys/dev/rtwn/if_rtwn_debug.h Fri Dec 30 22:24:01 2016 (r310867)
@@ -44,6 +44,7 @@ enum {
RTWN_DEBUG_RSSI = 0x00004000, /* dump RSSI lookups */
RTWN_DEBUG_RESET = 0x00008000, /* initialization progress */
RTWN_DEBUG_CALIB = 0x00010000, /* calibration progress */
+ RTWN_DEBUG_RADAR = 0x00020000, /* radar detection status */
RTWN_DEBUG_ANY = 0xffffffff
};
Modified: head/sys/dev/rtwn/if_rtwnvar.h
==============================================================================
--- head/sys/dev/rtwn/if_rtwnvar.h Fri Dec 30 22:18:22 2016 (r310866)
+++ head/sys/dev/rtwn/if_rtwnvar.h Fri Dec 30 22:24:01 2016 (r310867)
@@ -109,6 +109,7 @@ struct rtwn_vap {
struct rtwn_tx_buf bcn_desc;
struct mbuf *bcn_mbuf;
+ struct timeout_task tx_beacon_csa;
struct callout tsf_sync_adhoc;
struct task tsf_sync_adhoc_task;
Modified: head/sys/dev/rtwn/rtl8812a/r12a_var.h
==============================================================================
--- head/sys/dev/rtwn/rtl8812a/r12a_var.h Fri Dec 30 22:18:22 2016 (r310866)
+++ head/sys/dev/rtwn/rtl8812a/r12a_var.h Fri Dec 30 22:24:01 2016 (r310867)
@@ -39,6 +39,10 @@ struct r12a_softc {
#define R12A_RXCKSUM_EN 0x01
#define R12A_RXCKSUM6_EN 0x02
#define R12A_IQK_RUNNING 0x04
+#define R12A_RADAR_ENABLED 0x08
+
+ int rs_radar;
+ struct timeout_task rs_chan_check;
/* ROM variables */
int ext_pa_2g:1,
@@ -77,6 +81,11 @@ struct r12a_softc {
int sc_ant;
+ int (*rs_newstate[RTWN_PORT_COUNT])(struct ieee80211vap *,
+ enum ieee80211_state, int);
+ void (*rs_scan_start)(struct ieee80211com *);
+ void (*rs_scan_end)(struct ieee80211com *);
+
void (*rs_crystalcap_write)(struct rtwn_softc *);
void (*rs_fix_spur)(struct rtwn_softc *,
struct ieee80211_channel *);
Modified: head/sys/dev/rtwn/rtl8821a/r21a_init.c
==============================================================================
--- head/sys/dev/rtwn/rtl8821a/r21a_init.c Fri Dec 30 22:18:22 2016 (r310866)
+++ head/sys/dev/rtwn/rtl8821a/r21a_init.c Fri Dec 30 22:24:01 2016 (r310867)
@@ -280,7 +280,7 @@ r21a_power_off(struct rtwn_softc *sc)
/* Enable GPIO9 as EXT WAKEUP. */
rtwn_setbits_1(sc, R92C_GPIO_INTM + 2, 0, 0x01);
- rs->rs_flags &= ~R12A_IQK_RUNNING;
+ rs->rs_flags &= ~(R12A_IQK_RUNNING | R12A_RADAR_ENABLED);
}
int
Modified: head/sys/dev/rtwn/rtl8821a/usb/r21au.h
==============================================================================
--- head/sys/dev/rtwn/rtl8821a/usb/r21au.h Fri Dec 30 22:18:22 2016 (r310866)
+++ head/sys/dev/rtwn/rtl8821a/usb/r21au.h Fri Dec 30 22:24:01 2016 (r310867)
@@ -39,4 +39,10 @@
void r21au_init_tx_agg(struct rtwn_softc *);
void r21au_init_burstlen(struct rtwn_softc *);
+/* r21au_dfs.c */
+void r21au_chan_check(void *, int);
+int r21au_newstate(struct ieee80211vap *, enum ieee80211_state, int);
+void r21au_scan_start(struct ieee80211com *);
+void r21au_scan_end(struct ieee80211com *);
+
#endif /* RTL8821AU_H */
Modified: head/sys/dev/rtwn/rtl8821a/usb/r21au_attach.c
==============================================================================
--- head/sys/dev/rtwn/rtl8821a/usb/r21au_attach.c Fri Dec 30 22:18:22 2016 (r310866)
+++ head/sys/dev/rtwn/rtl8821a/usb/r21au_attach.c Fri Dec 30 22:24:01 2016 (r310867)
@@ -76,6 +76,7 @@ void r21au_attach(struct rtwn_usb_softc
static void
r21a_postattach(struct rtwn_softc *sc)
{
+ struct ieee80211com *ic = &sc->sc_ic;
struct r12a_softc *rs = sc->sc_priv;
if (rs->board_type == R92C_BOARD_TYPE_MINICARD ||
@@ -85,18 +86,52 @@ r21a_postattach(struct rtwn_softc *sc)
else
sc->sc_set_led = r21a_set_led;
- sc->sc_ic.ic_ioctl = r12a_ioctl_net;
+ TIMEOUT_TASK_INIT(taskqueue_thread, &rs->rs_chan_check, 0,
+ r21au_chan_check, sc);
+
+ /* RXCKSUM */
+ ic->ic_ioctl = r12a_ioctl_net;
+ /* DFS */
+ rs->rs_scan_start = ic->ic_scan_start;
+ ic->ic_scan_start = r21au_scan_start;
+ rs->rs_scan_end = ic->ic_scan_end;
+ ic->ic_scan_end = r21au_scan_end;
+}
+
+static void
+r21au_vap_preattach(struct rtwn_softc *sc, struct ieee80211vap *vap)
+{
+ struct rtwn_vap *rvp = RTWN_VAP(vap);
+ struct r12a_softc *rs = sc->sc_priv;
+
+ r12a_vap_preattach(sc, vap);
+
+ /* Install DFS newstate handler (non-monitor vaps only). */
+ if (rvp->id != RTWN_VAP_ID_INVALID) {
+ KASSERT(rvp->id >= 0 && rvp->id <= nitems(rs->rs_newstate),
+ ("%s: wrong vap id %d\n", __func__, rvp->id));
+
+ rs->rs_newstate[rvp->id] = vap->iv_newstate;
+ vap->iv_newstate = r21au_newstate;
+ }
}
static void
r21a_attach_private(struct rtwn_softc *sc)
{
+ struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->sc_dev);
+ struct sysctl_oid *tree = device_get_sysctl_tree(sc->sc_dev);
struct r12a_softc *rs;
rs = malloc(sizeof(struct r12a_softc), M_RTWN_PRIV, M_WAITOK | M_ZERO);
rs->rs_flags = R12A_RXCKSUM_EN | R12A_RXCKSUM6_EN;
+ rs->rs_radar = 0;
+ SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
+ "radar_detection", CTLFLAG_RDTUN, &rs->rs_radar,
+ rs->rs_radar, "Enable radar detection (untested)");
+
rs->rs_fix_spur = rtwn_nop_softc_chan;
rs->rs_set_band_2ghz = r21a_set_band_2ghz;
rs->rs_set_band_5ghz = r21a_set_band_5ghz;
@@ -119,7 +154,13 @@ r21a_attach_private(struct rtwn_softc *s
static void
r21au_adj_devcaps(struct rtwn_softc *sc)
{
- /* TODO: DFS, LDPC etc */
+ struct ieee80211com *ic = &sc->sc_ic;
+ struct r12a_softc *rs = sc->sc_priv;
+
+ if (rs->rs_radar != 0)
+ ic->ic_caps |= IEEE80211_C_DFS;
+
+ /* TODO: LDPC etc */
}
void
@@ -163,7 +204,7 @@ r21au_attach(struct rtwn_usb_softc *uc)
sc->sc_iq_calib = r12a_iq_calib;
sc->sc_read_chipid_vendor = rtwn_nop_softc_uint32;
sc->sc_adj_devcaps = r21au_adj_devcaps;
- sc->sc_vap_preattach = r12a_vap_preattach;
+ sc->sc_vap_preattach = r21au_vap_preattach;
sc->sc_postattach = r21a_postattach;
sc->sc_detach_private = r12a_detach_private;
#ifndef RTWN_WITHOUT_UCODE
Added: head/sys/dev/rtwn/rtl8821a/usb/r21au_dfs.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/dev/rtwn/rtl8821a/usb/r21au_dfs.c Fri Dec 30 22:24:01 2016 (r310867)
@@ -0,0 +1,280 @@
+/*-
+ * Copyright (c) 2016 Andriy Voskoboinyk <avos at 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.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#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 <sys/linker.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_debug.h>
+
+#include <dev/rtwn/usb/rtwn_usb_var.h>
+
+#include <dev/rtwn/rtl8812a/r12a_var.h>
+
+#include <dev/rtwn/rtl8821a/usb/r21au.h>
+#include <dev/rtwn/rtl8821a/usb/r21au_reg.h>
+
+
+#define R21AU_RADAR_CHECK_PERIOD (2 * hz)
+
+static void
+r21au_dfs_radar_disable(struct rtwn_softc *sc)
+{
+ rtwn_bb_setbits(sc, 0x924, 0x00008000, 0);
+}
+
+static int
+r21au_dfs_radar_is_enabled(struct rtwn_softc *sc)
+{
+ return !!(rtwn_bb_read(sc, 0x924) & 0x00008000);
+}
+
+static int
+r21au_dfs_radar_reset(struct rtwn_softc *sc)
+{
+ int error;
+
+ error = rtwn_bb_setbits(sc, 0x924, 0x00008000, 0);
+ if (error != 0)
+ return (error);
+
+ return (rtwn_bb_setbits(sc, 0x924, 0, 0x00008000));
+}
+
+static int
+r21au_dfs_radar_enable(struct rtwn_softc *sc)
+{
+#define RTWN_CHK(res) do { \
+ if (res != 0) \
+ return (EIO); \
+} while(0)
+
+ RTWN_ASSERT_LOCKED(sc);
+
+ RTWN_CHK(rtwn_bb_setbits(sc, 0x814, 0x3fffffff, 0x04cc4d10));
+ RTWN_CHK(rtwn_bb_setbits(sc, R12A_BW_INDICATION, 0xff, 0x06));
+ RTWN_CHK(rtwn_bb_write(sc, 0x918, 0x1c16ecdf));
+ RTWN_CHK(rtwn_bb_write(sc, 0x924, 0x0152a400));
+ RTWN_CHK(rtwn_bb_write(sc, 0x91c, 0x0fa21a20));
+ RTWN_CHK(rtwn_bb_write(sc, 0x920, 0xe0f57204));
+
+ return (r21au_dfs_radar_reset(sc));
+
+#undef RTWN_CHK
+}
+
+static int
+r21au_dfs_radar_is_detected(struct rtwn_softc *sc)
+{
+ return !!(rtwn_bb_read(sc, 0xf98) & 0x00020000);
+}
+
+void
+r21au_chan_check(void *arg, int npending __unused)
+{
+ struct rtwn_softc *sc = arg;
+ struct r12a_softc *rs = sc->sc_priv;
+ struct ieee80211com *ic = &sc->sc_ic;
+
+ RTWN_LOCK(sc);
+#ifdef DIAGNOSTIC
+ RTWN_DPRINTF(sc, RTWN_DEBUG_STATE,
+ "%s: periodical radar detection task\n", __func__);
+#endif
+
+ if (!r21au_dfs_radar_is_enabled(sc)) {
+ if (rs->rs_flags & R12A_RADAR_ENABLED) {
+ /* should not happen */
+ device_printf(sc->sc_dev,
+ "%s: radar detection was turned off "
+ "unexpectedly, resetting...\n", __func__);
+
+ /* XXX something more appropriate? */
+ ieee80211_restart_all(ic);
+ }
+ RTWN_UNLOCK(sc);
+ return;
+ }
+
+ if (r21au_dfs_radar_is_detected(sc)) {
+ r21au_dfs_radar_reset(sc);
+
+ RTWN_DPRINTF(sc, RTWN_DEBUG_RADAR, "%s: got radar event\n",
+ __func__);
+
+ RTWN_UNLOCK(sc);
+ IEEE80211_LOCK(ic);
+
+ ieee80211_dfs_notify_radar(ic, ic->ic_curchan);
+
+ IEEE80211_UNLOCK(ic);
+ RTWN_LOCK(sc);
+ }
+
+ if (rs->rs_flags & R12A_RADAR_ENABLED) {
+ taskqueue_enqueue_timeout(taskqueue_thread,
+ &rs->rs_chan_check, R21AU_RADAR_CHECK_PERIOD);
+ }
+ RTWN_UNLOCK(sc);
+}
+
+int
+r21au_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
+{
+ struct ieee80211com *ic = vap->iv_ic;
+ struct rtwn_softc *sc = ic->ic_softc;
+ struct rtwn_vap *rvp = RTWN_VAP(vap);
+ struct r12a_softc *rs = sc->sc_priv;
+ int error;
+
+ KASSERT(rvp->id == 0 || rvp->id == 1,
+ ("%s: unexpected vap id %d\n", __func__, rvp->id));
+
+ IEEE80211_UNLOCK(ic);
+ RTWN_LOCK(sc);
+
+ error = 0;
+ if (nstate == IEEE80211_S_CAC &&
+ !(rs->rs_flags & R12A_RADAR_ENABLED)) {
+ error = r21au_dfs_radar_enable(sc);
+ if (error != 0) {
+ device_printf(sc->sc_dev,
+ "%s: cannot enable radar detection\n", __func__);
+ goto fail;
+ }
+ rs->rs_flags |= R12A_RADAR_ENABLED;
+
+ RTWN_DPRINTF(sc, RTWN_DEBUG_RADAR,
+ "%s: radar detection was enabled\n", __func__);
+
+ taskqueue_enqueue_timeout(taskqueue_thread,
+ &rs->rs_chan_check, R21AU_RADAR_CHECK_PERIOD);
+ }
+
+ if ((nstate < IEEE80211_S_CAC || nstate == IEEE80211_S_CSA) &&
+ (rs->rs_flags & R12A_RADAR_ENABLED) &&
+ (sc->vaps[!rvp->id] == NULL ||
+ sc->vaps[!rvp->id]->vap.iv_state < IEEE80211_S_CAC ||
+ sc->vaps[!rvp->id]->vap.iv_state == IEEE80211_S_CSA)) {
+ taskqueue_cancel_timeout(taskqueue_thread, &rs->rs_chan_check,
+ NULL);
+
+ rs->rs_flags &= ~R12A_RADAR_ENABLED;
+ r21au_dfs_radar_disable(sc);
+
+ RTWN_DPRINTF(sc, RTWN_DEBUG_RADAR,
+ "%s: radar detection was disabled\n", __func__);
+ }
+
+fail:
+ RTWN_UNLOCK(sc);
+ IEEE80211_LOCK(ic);
+
+ if (error != 0)
+ return (error);
+
+ return (rs->rs_newstate[rvp->id](vap, nstate, arg));
+}
+
+void
+r21au_scan_start(struct ieee80211com *ic)
+{
+ struct rtwn_softc *sc = ic->ic_softc;
+ struct r12a_softc *rs = sc->sc_priv;
+
+ RTWN_LOCK(sc);
+ if (rs->rs_flags & R12A_RADAR_ENABLED) {
+ RTWN_UNLOCK(sc);
+ while (taskqueue_cancel_timeout(taskqueue_thread,
+ &rs->rs_chan_check, NULL) != 0) {
+ taskqueue_drain_timeout(taskqueue_thread,
+ &rs->rs_chan_check);
+ }
+ RTWN_LOCK(sc);
+
+ r21au_dfs_radar_disable(sc);
+ RTWN_DPRINTF(sc, RTWN_DEBUG_RADAR,
+ "%s: radar detection was (temporarily) disabled\n",
+ __func__);
+ }
+ RTWN_UNLOCK(sc);
+
+ rs->rs_scan_start(ic);
+}
+
+void
+r21au_scan_end(struct ieee80211com *ic)
+{
+ struct rtwn_softc *sc = ic->ic_softc;
+ struct r12a_softc *rs = sc->sc_priv;
+ int error;
+
+ RTWN_LOCK(sc);
+ if (rs->rs_flags & R12A_RADAR_ENABLED) {
+ error = r21au_dfs_radar_enable(sc);
+ if (error != 0) {
+ device_printf(sc->sc_dev,
+ "%s: cannot re-enable radar detection\n",
+ __func__);
+
+ /* XXX */
+ ieee80211_restart_all(ic);
+ RTWN_UNLOCK(sc);
+ return;
+ }
+ RTWN_DPRINTF(sc, RTWN_DEBUG_RADAR,
+ "%s: radar detection was re-enabled\n", __func__);
+
+ taskqueue_enqueue_timeout(taskqueue_thread,
+ &rs->rs_chan_check, R21AU_RADAR_CHECK_PERIOD);
+ }
+ RTWN_UNLOCK(sc);
+
+ rs->rs_scan_end(ic);
+}
Modified: head/sys/modules/rtwn_usb/Makefile
==============================================================================
--- head/sys/modules/rtwn_usb/Makefile Fri Dec 30 22:18:22 2016 (r310866)
+++ head/sys/modules/rtwn_usb/Makefile Fri Dec 30 22:24:01 2016 (r310867)
@@ -25,7 +25,7 @@ SRCS += r12au_attach.c r12au_init.c r12a
r12au.h r12au_reg.h r12au_tx_desc.h
.PATH: ${.CURDIR}/../../dev/rtwn/rtl8821a/usb
-SRCS += r21au_attach.c r21au_init.c \
+SRCS += r21au_attach.c r21au_init.c r21au_dfs.c \
r21au.h r21au_reg.h
opt_rtwn.h:
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