#include <machine/rtems-bsd-kernel-space.h>
/* $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>
__FBSDID("$FreeBSD$");
/*
* Driver for Realtek RTL8188CE-VAU/RTL8188CUS/RTL8188EU/RTL8188RU/RTL8192CU/RTL8812AU/RTL8821AU.
*/
#include <rtems/bsd/local/opt_wlan.h>
#include <sys/param.h>
#include <sys/sockio.h>
#include <sys/sysctl.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/module.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/linker.h>
#include <sys/firmware.h>
#include <sys/kdb.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/if_ether.h>
#include <netinet/ip.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_regdomain.h>
#include <net80211/ieee80211_radiotap.h>
#include <net80211/ieee80211_ratectl.h>
#include <dev/rtwn/if_rtwnreg.h>
#include <dev/rtwn/if_rtwnvar.h>
#include <dev/rtwn/if_rtwn_beacon.h>
#include <dev/rtwn/if_rtwn_calib.h>
#include <dev/rtwn/if_rtwn_cam.h>
#include <dev/rtwn/if_rtwn_debug.h>
#include <dev/rtwn/if_rtwn_efuse.h>
#include <dev/rtwn/if_rtwn_fw.h>
#include <dev/rtwn/if_rtwn_ridx.h>
#include <dev/rtwn/if_rtwn_rx.h>
#include <dev/rtwn/if_rtwn_task.h>
#include <dev/rtwn/if_rtwn_tx.h>
#include <dev/rtwn/rtl8192c/r92c_reg.h>
static void rtwn_radiotap_attach(struct rtwn_softc *);
static void rtwn_vap_decrement_counters(struct rtwn_softc *,
enum ieee80211_opmode, int);
static void rtwn_set_ic_opmode(struct rtwn_softc *);
static struct ieee80211vap *rtwn_vap_create(struct ieee80211com *,
const char [IFNAMSIZ], int, enum ieee80211_opmode,
int, const uint8_t [IEEE80211_ADDR_LEN],
const uint8_t [IEEE80211_ADDR_LEN]);
static void rtwn_vap_delete(struct ieee80211vap *);
static int rtwn_read_chipid(struct rtwn_softc *);
static int rtwn_ioctl_reset(struct ieee80211vap *, u_long);
static void rtwn_set_media_status(struct rtwn_softc *,
union sec_param *);
#ifndef RTWN_WITHOUT_UCODE
static int rtwn_tx_fwpkt_check(struct rtwn_softc *,
struct ieee80211vap *);
static int rtwn_construct_nulldata(struct rtwn_softc *,
struct ieee80211vap *, uint8_t *, int);
static int rtwn_push_nulldata(struct rtwn_softc *,
struct ieee80211vap *);
static void rtwn_pwrmode_init(void *);
static void rtwn_set_pwrmode_cb(struct rtwn_softc *,
union sec_param *);
#endif
static void rtwn_tsf_sync_adhoc(void *);
static void rtwn_tsf_sync_adhoc_task(void *, int);
static void rtwn_tsf_sync_enable(struct rtwn_softc *,
struct ieee80211vap *);
static void rtwn_set_ack_preamble(struct rtwn_softc *);
static void rtwn_set_mode(struct rtwn_softc *, uint8_t, int);
static int rtwn_monitor_newstate(struct ieee80211vap *,
enum ieee80211_state, int);
static int rtwn_newstate(struct ieee80211vap *,
enum ieee80211_state, int);
static void rtwn_calc_basicrates(struct rtwn_softc *);
static int rtwn_run(struct rtwn_softc *,
struct ieee80211vap *);
#ifndef D4054
static void rtwn_watchdog(void *);
#endif
static void rtwn_parent(struct ieee80211com *);
static int rtwn_dma_init(struct rtwn_softc *);
static int rtwn_mac_init(struct rtwn_softc *);
static void rtwn_mrr_init(struct rtwn_softc *);
static void rtwn_scan_start(struct ieee80211com *);
static void rtwn_scan_curchan(struct ieee80211_scan_state *,
unsigned long);
static void rtwn_scan_end(struct ieee80211com *);
static void rtwn_getradiocaps(struct ieee80211com *, int, int *,
struct ieee80211_channel[]);
static void rtwn_update_chw(struct ieee80211com *);
static void rtwn_set_channel(struct ieee80211com *);
static int rtwn_wme_update(struct ieee80211com *);
static void rtwn_update_slot(struct ieee80211com *);
static void rtwn_update_slot_cb(struct rtwn_softc *,
union sec_param *);
static void rtwn_update_aifs(struct rtwn_softc *, uint8_t);
static void rtwn_update_promisc(struct ieee80211com *);
static void rtwn_update_mcast(struct ieee80211com *);
static int rtwn_set_bssid(struct rtwn_softc *,
const uint8_t *, int);
static int rtwn_set_macaddr(struct rtwn_softc *,
const uint8_t *, int);
static struct ieee80211_node *rtwn_node_alloc(struct ieee80211vap *,
const uint8_t mac[IEEE80211_ADDR_LEN]);
static void rtwn_newassoc(struct ieee80211_node *, int);
static void rtwn_node_free(struct ieee80211_node *);
static void rtwn_init_beacon_reg(struct rtwn_softc *);
static int rtwn_init(struct rtwn_softc *);
static void rtwn_stop(struct rtwn_softc *);
MALLOC_DEFINE(M_RTWN_PRIV, "rtwn_priv", "rtwn driver private state");
static const uint8_t rtwn_chan_2ghz[] =
{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 };
static const uint16_t wme2reg[] =
{ R92C_EDCA_BE_PARAM, R92C_EDCA_BK_PARAM,
R92C_EDCA_VI_PARAM, R92C_EDCA_VO_PARAM };
int
rtwn_attach(struct rtwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
int error;
sc->cur_bcnq_id = RTWN_VAP_ID_INVALID;
RTWN_NT_LOCK_INIT(sc);
rtwn_cmdq_init(sc);
#ifndef D4054
callout_init_mtx(&sc->sc_watchdog_to, &sc->sc_mtx, 0);
#endif
callout_init(&sc->sc_calib_to, 0);
callout_init(&sc->sc_pwrmode_init, 0);
mbufq_init(&sc->sc_snd, ifqmaxlen);
RTWN_LOCK(sc);
error = rtwn_read_chipid(sc);
RTWN_UNLOCK(sc);
if (error != 0) {
device_printf(sc->sc_dev, "unsupported test chip\n");
goto detach;
}
error = rtwn_read_rom(sc);
if (error != 0) {
device_printf(sc->sc_dev, "%s: cannot read rom, error %d\n",
__func__, error);
goto detach;
}
if (sc->macid_limit > RTWN_MACID_LIMIT) {
device_printf(sc->sc_dev,
"macid limit will be reduced from %d to %d\n",
sc->macid_limit, RTWN_MACID_LIMIT);
sc->macid_limit = RTWN_MACID_LIMIT;
}
if (sc->cam_entry_limit > RTWN_CAM_ENTRY_LIMIT) {
device_printf(sc->sc_dev,
"cam entry limit will be reduced from %d to %d\n",
sc->cam_entry_limit, RTWN_CAM_ENTRY_LIMIT);
sc->cam_entry_limit = RTWN_CAM_ENTRY_LIMIT;
}
if (sc->txdesc_len > RTWN_TX_DESC_SIZE) {
device_printf(sc->sc_dev,
"adjust size for Tx descriptor (current %d, needed %d)\n",
RTWN_TX_DESC_SIZE, sc->txdesc_len);
goto detach;
}
device_printf(sc->sc_dev, "MAC/BB %s, RF 6052 %dT%dR\n",
sc->name, sc->ntxchains, sc->nrxchains);
ic->ic_softc = sc;
ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */
ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */
/* set device capabilities */
ic->ic_caps =
IEEE80211_C_STA /* station mode */
| IEEE80211_C_MONITOR /* monitor mode */
| IEEE80211_C_IBSS /* adhoc mode */
| IEEE80211_C_HOSTAP /* hostap mode */
#if 0 /* TODO: HRPWM register setup */
#ifndef RTWN_WITHOUT_UCODE
| IEEE80211_C_PMGT /* Station-side power mgmt */
#endif
#endif
| IEEE80211_C_SHPREAMBLE /* short preamble supported */
| IEEE80211_C_SHSLOT /* short slot time supported */
#if 0
| IEEE80211_C_BGSCAN /* capable of bg scanning */
#endif
| IEEE80211_C_WPA /* 802.11i */
| IEEE80211_C_WME /* 802.11e */
| IEEE80211_C_SWAMSDUTX /* Do software A-MSDU TX */
| IEEE80211_C_FF /* Atheros fast-frames */
;
if (sc->sc_hwcrypto != RTWN_CRYPTO_SW) {
ic->ic_cryptocaps =
IEEE80211_CRYPTO_WEP |
IEEE80211_CRYPTO_TKIP |
IEEE80211_CRYPTO_AES_CCM;
}
ic->ic_htcaps =
IEEE80211_HTCAP_SHORTGI20 /* short GI in 20MHz */
| IEEE80211_HTCAP_MAXAMSDU_3839 /* max A-MSDU length */
| IEEE80211_HTCAP_SMPS_OFF /* SM PS mode disabled */
/* s/w capabilities */
| IEEE80211_HTC_HT /* HT operation */
| IEEE80211_HTC_AMPDU /* A-MPDU tx */
| IEEE80211_HTC_AMSDU /* A-MSDU tx */
;
if (sc->sc_ht40) {
ic->ic_htcaps |=
IEEE80211_HTCAP_CHWIDTH40 /* 40 MHz channel width */
| IEEE80211_HTCAP_SHORTGI40 /* short GI in 40MHz */
;
}
ic->ic_txstream = sc->ntxchains;
ic->ic_rxstream = sc->nrxchains;
/* Enable TX watchdog */
#ifdef D4054
ic->ic_flags_ext |= IEEE80211_FEXT_WATCHDOG;
#endif
/* Adjust capabilities. */
rtwn_adj_devcaps(sc);
rtwn_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
ic->ic_channels);
/* XXX TODO: setup regdomain if R92C_CHANNEL_PLAN_BY_HW bit is set. */
ieee80211_ifattach(ic);
ic->ic_raw_xmit = rtwn_raw_xmit;
ic->ic_scan_start = rtwn_scan_start;
sc->sc_scan_curchan = ic->ic_scan_curchan;
ic->ic_scan_curchan = rtwn_scan_curchan;
ic->ic_scan_end = rtwn_scan_end;
ic->ic_getradiocaps = rtwn_getradiocaps;
ic->ic_update_chw = rtwn_update_chw;
ic->ic_set_channel = rtwn_set_channel;
ic->ic_transmit = rtwn_transmit;
ic->ic_parent = rtwn_parent;
ic->ic_vap_create = rtwn_vap_create;
ic->ic_vap_delete = rtwn_vap_delete;
ic->ic_wme.wme_update = rtwn_wme_update;
ic->ic_updateslot = rtwn_update_slot;
ic->ic_update_promisc = rtwn_update_promisc;
ic->ic_update_mcast = rtwn_update_mcast;
ic->ic_node_alloc = rtwn_node_alloc;
ic->ic_newassoc = rtwn_newassoc;
sc->sc_node_free = ic->ic_node_free;
ic->ic_node_free = rtwn_node_free;
rtwn_postattach(sc);
rtwn_radiotap_attach(sc);
if (bootverbose)
ieee80211_announce(ic);
return (0);
detach:
return (ENXIO); /* failure */
}
static void
rtwn_radiotap_attach(struct rtwn_softc *sc)
{
struct rtwn_rx_radiotap_header *rxtap = &sc->sc_rxtap;
struct rtwn_tx_radiotap_header *txtap = &sc->sc_txtap;
ieee80211_radiotap_attach(&sc->sc_ic,
&txtap->wt_ihdr, sizeof(*txtap), RTWN_TX_RADIOTAP_PRESENT,
&rxtap->wr_ihdr, sizeof(*rxtap), RTWN_RX_RADIOTAP_PRESENT);
}
void
rtwn_sysctlattach(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);
#if 1
sc->sc_ht40 = 0;
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"ht40", CTLFLAG_RDTUN, &sc->sc_ht40,
sc->sc_ht40, "Enable 40 MHz mode support");
#endif
#ifdef RTWN_DEBUG
SYSCTL_ADD_U32(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"debug", CTLFLAG_RWTUN, &sc->sc_debug, sc->sc_debug,
"Control debugging printfs");
#endif
sc->sc_hwcrypto = RTWN_CRYPTO_PAIR;
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"hwcrypto", CTLFLAG_RDTUN, &sc->sc_hwcrypto,
sc->sc_hwcrypto, "Enable h/w crypto: "
"0 - disable, 1 - pairwise keys, 2 - all keys");
if (sc->sc_hwcrypto >= RTWN_CRYPTO_MAX)
sc->sc_hwcrypto = RTWN_CRYPTO_FULL;
sc->sc_ratectl_sysctl = RTWN_RATECTL_NET80211;
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"ratectl", CTLFLAG_RDTUN, &sc->sc_ratectl_sysctl,
sc->sc_ratectl_sysctl, "Select rate control mechanism: "
"0 - disabled, 1 - via net80211, 2 - via firmware");
if (sc->sc_ratectl_sysctl >= RTWN_RATECTL_MAX)
sc->sc_ratectl_sysctl = RTWN_RATECTL_FW;
sc->sc_ratectl = sc->sc_ratectl_sysctl;
SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"ratectl_selected", CTLFLAG_RD, &sc->sc_ratectl,
sc->sc_ratectl,
"Currently selected rate control mechanism (by the driver)");
}
void
rtwn_detach(struct rtwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
if (ic->ic_softc == sc) {
/* Stop command queue. */
RTWN_CMDQ_LOCK(sc);
sc->sc_detached = 1;
RTWN_CMDQ_UNLOCK(sc);
ieee80211_draintask(ic, &sc->cmdq_task);
ieee80211_ifdetach(ic);
}
rtwn_cmdq_destroy(sc);
if (RTWN_NT_LOCK_INITIALIZED(sc))
RTWN_NT_LOCK_DESTROY(sc);
}
void
rtwn_suspend(struct rtwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
ieee80211_suspend_all(ic);
}
void
rtwn_resume(struct rtwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
ieee80211_resume_all(ic);
}
static void
rtwn_vap_decrement_counters(struct rtwn_softc *sc,
enum ieee80211_opmode opmode, int id)
{
RTWN_ASSERT_LOCKED(sc);
if (id != RTWN_VAP_ID_INVALID) {
KASSERT(id == 0 || id == 1, ("wrong vap id %d!\n", id));
KASSERT(sc->vaps[id] != NULL, ("vap pointer is NULL\n"));
sc->vaps[id] = NULL;
}
switch (opmode) {
case IEEE80211_M_HOSTAP:
sc->ap_vaps--;
/* FALLTHROUGH */
case IEEE80211_M_IBSS:
sc->bcn_vaps--;
/* FALLTHROUGH */
case IEEE80211_M_STA:
sc->nvaps--;
break;
case IEEE80211_M_MONITOR:
sc->mon_vaps--;
break;
default:
KASSERT(0, ("wrong opmode %d\n", opmode));
break;
}
KASSERT(sc->vaps_running >= 0 && sc->monvaps_running >= 0,
("number of running vaps is negative (vaps %d, monvaps %d)\n",
sc->vaps_running, sc->monvaps_running));
KASSERT(sc->vaps_running - sc->monvaps_running <= RTWN_PORT_COUNT,
("number of running vaps is too big (vaps %d, monvaps %d)\n",
sc->vaps_running, sc->monvaps_running));
KASSERT(sc->nvaps >= 0 && sc->nvaps <= RTWN_PORT_COUNT,
("wrong value %d for nvaps\n", sc->nvaps));
KASSERT(sc->mon_vaps >= 0, ("mon_vaps is negative (%d)\n",
sc->mon_vaps));
KASSERT(sc->bcn_vaps >= 0 && ((RTWN_CHIP_HAS_BCNQ1(sc) &&
sc->bcn_vaps <= RTWN_PORT_COUNT) || sc->bcn_vaps <= 1),
("bcn_vaps value %d is wrong\n", sc->bcn_vaps));
KASSERT(sc->ap_vaps >= 0 && ((RTWN_CHIP_HAS_BCNQ1(sc) &&
sc->ap_vaps <= RTWN_PORT_COUNT) || sc->ap_vaps <= 1),
("ap_vaps value %d is wrong\n", sc->ap_vaps));
}
static void
rtwn_set_ic_opmode(struct rtwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
RTWN_ASSERT_LOCKED(sc);
/* for ieee80211_reset_erp() */
if (sc->bcn_vaps - sc->ap_vaps > 0)
ic->ic_opmode = IEEE80211_M_IBSS;
else if (sc->ap_vaps > 0)
ic->ic_opmode = IEEE80211_M_HOSTAP;
else if (sc->nvaps > 0)
ic->ic_opmode = IEEE80211_M_STA;
else
ic->ic_opmode = IEEE80211_M_MONITOR;
}
static struct ieee80211vap *
rtwn_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
enum ieee80211_opmode opmode, int flags,
const uint8_t bssid[IEEE80211_ADDR_LEN],
const uint8_t mac[IEEE80211_ADDR_LEN])
{
struct rtwn_softc *sc = ic->ic_softc;
struct rtwn_vap *uvp;
struct ieee80211vap *vap;
int id = RTWN_VAP_ID_INVALID;
RTWN_LOCK(sc);
KASSERT(sc->nvaps <= RTWN_PORT_COUNT,
("nvaps overflow (%d > %d)\n", sc->nvaps, RTWN_PORT_COUNT));
KASSERT(sc->ap_vaps <= RTWN_PORT_COUNT,
("ap_vaps overflow (%d > %d)\n", sc->ap_vaps, RTWN_PORT_COUNT));
KASSERT(sc->bcn_vaps <= RTWN_PORT_COUNT,
("bcn_vaps overflow (%d > %d)\n", sc->bcn_vaps, RTWN_PORT_COUNT));
if (opmode != IEEE80211_M_MONITOR) {
switch (sc->nvaps) {
case 0:
id = 0;
break;
case 1:
if (sc->vaps[1] == NULL)
id = 1;
else if (sc->vaps[0] == NULL)
id = 0;
KASSERT(id != RTWN_VAP_ID_INVALID,
("no free ports left\n"));
break;
case 2:
default:
goto fail;
}
if (opmode == IEEE80211_M_IBSS ||
opmode == IEEE80211_M_HOSTAP) {
if ((sc->bcn_vaps == 1 && !RTWN_CHIP_HAS_BCNQ1(sc)) ||
sc->bcn_vaps == RTWN_PORT_COUNT)
goto fail;
}
}
switch (opmode) {
case IEEE80211_M_HOSTAP:
sc->ap_vaps++;
/* FALLTHROUGH */
case IEEE80211_M_IBSS:
sc->bcn_vaps++;
/* FALLTHROUGH */
case IEEE80211_M_STA:
sc->nvaps++;
break;
case IEEE80211_M_MONITOR:
sc->mon_vaps++;
break;
default:
KASSERT(0, ("unknown opmode %d\n", opmode));
goto fail;
}
RTWN_UNLOCK(sc);
uvp = malloc(sizeof(struct rtwn_vap), M_80211_VAP, M_WAITOK | M_ZERO);
uvp->id = id;
if (id != RTWN_VAP_ID_INVALID) {
RTWN_LOCK(sc);
sc->vaps[id] = uvp;
RTWN_UNLOCK(sc);
}
vap = &uvp->vap;
/* enable s/w bmiss handling for sta mode */
if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
/* out of memory */
free(uvp, M_80211_VAP);
RTWN_LOCK(sc);
rtwn_vap_decrement_counters(sc, opmode, id);
RTWN_UNLOCK(sc);
return (NULL);
}
rtwn_beacon_init(sc, &uvp->bcn_desc.txd[0], uvp->id);
rtwn_vap_preattach(sc, vap);
/* override state transition machine */
uvp->newstate = vap->iv_newstate;
if (opmode == IEEE80211_M_MONITOR)
vap->iv_newstate = rtwn_monitor_newstate;
else
vap->iv_newstate = rtwn_newstate;
vap->iv_update_beacon = rtwn_update_beacon;
vap->iv_reset = rtwn_ioctl_reset;
vap->iv_key_alloc = rtwn_key_alloc;
vap->iv_key_set = rtwn_key_set;
vap->iv_key_delete = rtwn_key_delete;
vap->iv_max_aid = sc->macid_limit;
/* 802.11n parameters */
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;
TASK_INIT(&uvp->tsf_sync_adhoc_task, 0,
rtwn_tsf_sync_adhoc_task, vap);
callout_init(&uvp->tsf_sync_adhoc, 0);
}
/*
* NB: driver can select net80211 RA even when user requests
* another mechanism.
*/
ieee80211_ratectl_init(vap);
/* complete setup */
ieee80211_vap_attach(vap, ieee80211_media_change,
ieee80211_media_status, mac);
RTWN_LOCK(sc);
rtwn_set_ic_opmode(sc);
if (sc->sc_flags & RTWN_RUNNING) {
if (uvp->id != RTWN_VAP_ID_INVALID)
rtwn_set_macaddr(sc, vap->iv_myaddr, uvp->id);
rtwn_rxfilter_update(sc);
}
RTWN_UNLOCK(sc);
return (vap);
fail:
RTWN_UNLOCK(sc);
return (NULL);
}
static void
rtwn_vap_delete(struct ieee80211vap *vap)
{
struct ieee80211com *ic = vap->iv_ic;
struct rtwn_softc *sc = ic->ic_softc;
struct rtwn_vap *uvp = RTWN_VAP(vap);
/* Put vap into INIT state + stop device if needed. */
ieee80211_stop(vap);
ieee80211_draintask(ic, &vap->iv_nstate_task);
ieee80211_draintask(ic, &ic->ic_parent_task);
RTWN_LOCK(sc);
/* Cancel any unfinished Tx. */
rtwn_reset_lists(sc, vap);
if (uvp->bcn_mbuf != NULL)
m_freem(uvp->bcn_mbuf);
rtwn_vap_decrement_counters(sc, vap->iv_opmode, uvp->id);
rtwn_set_ic_opmode(sc);
if (sc->sc_flags & RTWN_RUNNING)
rtwn_rxfilter_update(sc);
RTWN_UNLOCK(sc);
if (vap->iv_opmode == IEEE80211_M_IBSS) {
ieee80211_draintask(ic, &uvp->tsf_sync_adhoc_task);
callout_drain(&uvp->tsf_sync_adhoc);
}
ieee80211_ratectl_deinit(vap);
ieee80211_vap_detach(vap);
free(uvp, M_80211_VAP);
}
static int
rtwn_read_chipid(struct rtwn_softc *sc)
{
uint32_t reg;
reg = rtwn_read_4(sc, R92C_SYS_CFG);
if (reg & R92C_SYS_CFG_TRP_VAUX_EN) /* test chip */
return (EOPNOTSUPP);
rtwn_read_chipid_vendor(sc, reg);
return (0);
}
static int
rtwn_ioctl_reset(struct ieee80211vap *vap, u_long cmd)
{
int error;
switch (cmd) {
#ifndef RTWN_WITHOUT_UCODE
case IEEE80211_IOC_POWERSAVE:
case IEEE80211_IOC_POWERSAVESLEEP:
{
struct rtwn_softc *sc = vap->iv_ic->ic_softc;
struct rtwn_vap *uvp = RTWN_VAP(vap);
if (vap->iv_opmode == IEEE80211_M_STA && uvp->id == 0) {
RTWN_LOCK(sc);
if (sc->sc_flags & RTWN_RUNNING)
error = rtwn_set_pwrmode(sc, vap, 1);
else
error = 0;
RTWN_UNLOCK(sc);
if (error != 0)
error = ENETRESET;
} else
error = EOPNOTSUPP;
break;
}
#endif
case IEEE80211_IOC_SHORTGI:
case IEEE80211_IOC_RTSTHRESHOLD:
case IEEE80211_IOC_PROTMODE:
case IEEE80211_IOC_HTPROTMODE:
case IEEE80211_IOC_LDPC:
error = 0;
break;
default:
error = ENETRESET;
break;
}
return (error);
}
static void
rtwn_set_media_status(struct rtwn_softc *sc, union sec_param *data)
{
sc->sc_set_media_status(sc, data->macid);
}
#ifndef RTWN_WITHOUT_UCODE
static int
rtwn_tx_fwpkt_check(struct rtwn_softc *sc, struct ieee80211vap *vap)
{
int ntries, error;
for (ntries = 0; ntries < 5; ntries++) {
error = rtwn_push_nulldata(sc, vap);
if (error == 0)
break;
}
if (ntries == 5) {
device_printf(sc->sc_dev,
"%s: cannot push f/w frames into chip, error %d!\n",
__func__, error);
return (error);
}
return (0);
}
static int
rtwn_construct_nulldata(struct rtwn_softc *sc, struct ieee80211vap *vap,
uint8_t *ptr, int qos)
{
struct rtwn_vap *uvp = RTWN_VAP(vap);
struct ieee80211com *ic = &sc->sc_ic;
struct rtwn_tx_desc_common *txd;
struct ieee80211_frame *wh;
int pktlen;
/* XXX obtain from net80211 */
wh = (struct ieee80211_frame *)(ptr + sc->txdesc_len);
wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA;
wh->i_fc[1] = IEEE80211_FC1_DIR_TODS;
IEEE80211_ADDR_COPY(wh->i_addr1, vap->iv_bss->ni_bssid);
IEEE80211_ADDR_COPY(wh->i_addr2, vap->iv_myaddr);
IEEE80211_ADDR_COPY(wh->i_addr3, vap->iv_bss->ni_macaddr);
txd = (struct rtwn_tx_desc_common *)ptr;
txd->offset = sc->txdesc_len;
pktlen = sc->txdesc_len;
if (qos) {
struct ieee80211_qosframe *qwh;
const int tid = WME_AC_TO_TID(WME_AC_BE);
qwh = (struct ieee80211_qosframe *)wh;
qwh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_QOS_NULL;
qwh->i_qos[0] = tid & IEEE80211_QOS_TID;
txd->pktlen = htole16(sizeof(struct ieee80211_qosframe));
pktlen += sizeof(struct ieee80211_qosframe);
} else {
wh->i_fc[0] |= IEEE80211_FC0_SUBTYPE_NODATA;
txd->pktlen = htole16(sizeof(struct ieee80211_frame));
pktlen += sizeof(struct ieee80211_frame);
}
rtwn_fill_tx_desc_null(sc, ptr,
ic->ic_curmode == IEEE80211_MODE_11B, qos, uvp->id);
return (pktlen);
}
static int
rtwn_push_nulldata(struct rtwn_softc *sc, struct ieee80211vap *vap)
{
struct rtwn_vap *uvp = RTWN_VAP(vap);
struct ieee80211com *ic = vap->iv_ic;
struct ieee80211_channel *c = ic->ic_curchan;
struct mbuf *m;
uint8_t *ptr;
int required_size, bcn_size, null_size, null_data, error;
if (!(sc->sc_flags & RTWN_FW_LOADED))
return (0); /* requires firmware */
KASSERT(sc->page_size > 0, ("page size was not set!\n"));
/* Leave some space for beacon (multi-vap) */
bcn_size = roundup(RTWN_BCN_MAX_SIZE, sc->page_size);
/* 1 page for Null Data + 1 page for Qos Null Data frames. */
required_size = bcn_size + sc->page_size * 2;
m = m_get2(required_size, M_NOWAIT, MT_DATA, M_PKTHDR);
if (m == NULL)
return (ENOMEM);
/* Setup beacon descriptor. */
rtwn_beacon_set_rate(sc, &uvp->bcn_desc.txd[0],
IEEE80211_IS_CHAN_5GHZ(c));
ptr = mtod(m, uint8_t *);
memset(ptr, 0, required_size - sc->txdesc_len);
/* Construct Null Data frame. */
ptr += bcn_size - sc->txdesc_len;
null_size = rtwn_construct_nulldata(sc, vap, ptr, 0);
KASSERT(null_size < sc->page_size,
("recalculate size for Null Data frame\n"));
/* Construct Qos Null Data frame. */
ptr += roundup(null_size, sc->page_size);
null_size = rtwn_construct_nulldata(sc, vap, ptr, 1);
KASSERT(null_size < sc->page_size,
("recalculate size for Qos Null Data frame\n"));
/* Do not try to detect a beacon here. */
rtwn_setbits_1_shift(sc, R92C_CR, 0, R92C_CR_ENSWBCN, 1);
rtwn_setbits_1_shift(sc, R92C_FWHW_TXQ_CTRL,
R92C_FWHW_TXQ_CTRL_REAL_BEACON, 0, 2);
if (uvp->bcn_mbuf != NULL) {
rtwn_beacon_unload(sc, uvp->id);
m_freem(uvp->bcn_mbuf);
}
m->m_pkthdr.len = m->m_len = required_size - sc->txdesc_len;
uvp->bcn_mbuf = m;
error = rtwn_tx_beacon_check(sc, uvp);
if (error != 0) {
RTWN_DPRINTF(sc, RTWN_DEBUG_BEACON,
"%s: frame was not recognized!\n", __func__);
goto fail;
}
/* Setup addresses in firmware. */
null_data = howmany(bcn_size, sc->page_size);
error = rtwn_set_rsvd_page(sc, 0, null_data, null_data + 1);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: CMD_RSVD_PAGE was not sent, error %d\n",
__func__, error);
goto fail;
}
fail:
/* Re-enable beacon detection. */
rtwn_setbits_1_shift(sc, R92C_FWHW_TXQ_CTRL,
0, R92C_FWHW_TXQ_CTRL_REAL_BEACON, 2);
rtwn_setbits_1_shift(sc, R92C_CR, R92C_CR_ENSWBCN, 0, 1);
/* Restore beacon (if present). */
if (sc->bcn_vaps > 0 && sc->vaps[!uvp->id] != NULL) {
struct rtwn_vap *uvp2 = sc->vaps[!uvp->id];
if (uvp2->curr_mode != R92C_MSR_NOLINK)
error = rtwn_tx_beacon_check(sc, uvp2);
}
return (error);
}
static void
rtwn_pwrmode_init(void *arg)
{
struct rtwn_softc *sc = arg;
rtwn_cmd_sleepable(sc, NULL, 0, rtwn_set_pwrmode_cb);
}
static void
rtwn_set_pwrmode_cb(struct rtwn_softc *sc, union sec_param *data)
{
struct ieee80211vap *vap = &sc->vaps[0]->vap;
if (vap != NULL)
rtwn_set_pwrmode(sc, vap, 1);
}
#endif
static void
rtwn_tsf_sync_adhoc(void *arg)
{
struct ieee80211vap *vap = arg;
struct ieee80211com *ic = vap->iv_ic;
struct rtwn_vap *uvp = RTWN_VAP(vap);
if (uvp->curr_mode != R92C_MSR_NOLINK) {
/* Do it in process context. */
ieee80211_runtask(ic, &uvp->tsf_sync_adhoc_task);
}
}
/*
* Workaround for TSF synchronization:
* when BSSID filter in IBSS mode is not set
* (and TSF synchronization is enabled), then any beacon may update it.
* This routine synchronizes it when BSSID matching is enabled (IBSS merge
* is not possible during this period).
*
* NOTE: there is no race with rtwn_newstate(), since it uses the same
* taskqueue.
*/
static void
rtwn_tsf_sync_adhoc_task(void *arg, int pending)
{
struct ieee80211vap *vap = arg;
struct rtwn_vap *uvp = RTWN_VAP(vap);
struct rtwn_softc *sc = vap->iv_ic->ic_softc;
struct ieee80211_node *ni;
RTWN_LOCK(sc);
ni = ieee80211_ref_node(vap->iv_bss);
/* Accept beacons with the same BSSID. */
rtwn_set_rx_bssid_all(sc, 0);
/* Deny RCR updates. */
sc->sc_flags |= RTWN_RCR_LOCKED;
/* Enable synchronization. */
rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
R92C_BCN_CTRL_DIS_TSF_UDT0, 0);
/* Synchronize. */
rtwn_delay(sc, ni->ni_intval * 5 * 1000);
/* Disable synchronization. */
rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
0, R92C_BCN_CTRL_DIS_TSF_UDT0);
/* Accept all beacons. */
sc->sc_flags &= ~RTWN_RCR_LOCKED;
rtwn_set_rx_bssid_all(sc, 1);
/* Schedule next TSF synchronization. */
callout_reset(&uvp->tsf_sync_adhoc, 60*hz, rtwn_tsf_sync_adhoc, vap);
ieee80211_free_node(ni);
RTWN_UNLOCK(sc);
}
static void
rtwn_tsf_sync_enable(struct rtwn_softc *sc, struct ieee80211vap *vap)
{
struct ieee80211com *ic = &sc->sc_ic;
struct rtwn_vap *uvp = RTWN_VAP(vap);
/* Reset TSF. */
rtwn_write_1(sc, R92C_DUAL_TSF_RST, R92C_DUAL_TSF_RESET(uvp->id));
switch (vap->iv_opmode) {
case IEEE80211_M_STA:
/* Enable TSF synchronization. */
rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
R92C_BCN_CTRL_DIS_TSF_UDT0, 0);
break;
case IEEE80211_M_IBSS:
ieee80211_runtask(ic, &uvp->tsf_sync_adhoc_task);
/* FALLTHROUGH */
case IEEE80211_M_HOSTAP:
/* Enable beaconing. */
rtwn_beacon_enable(sc, uvp->id, 1);
break;
default:
device_printf(sc->sc_dev, "undefined opmode %d\n",
vap->iv_opmode);
return;
}
}
static void
rtwn_set_ack_preamble(struct rtwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
uint32_t reg;
reg = rtwn_read_4(sc, R92C_WMAC_TRXPTCL_CTL);
if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
reg |= R92C_WMAC_TRXPTCL_SHPRE;
else
reg &= ~R92C_WMAC_TRXPTCL_SHPRE;
rtwn_write_4(sc, R92C_WMAC_TRXPTCL_CTL, reg);
}
static void
rtwn_set_mode(struct rtwn_softc *sc, uint8_t mode, int id)
{
rtwn_setbits_1(sc, R92C_MSR, R92C_MSR_MASK << id * 2, mode << id * 2);
if (sc->vaps[id] != NULL)
sc->vaps[id]->curr_mode = mode;
}
static int
rtwn_monitor_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 *uvp = RTWN_VAP(vap);
RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s -> %s\n",
ieee80211_state_name[vap->iv_state],
ieee80211_state_name[nstate]);
if (vap->iv_state != nstate) {
IEEE80211_UNLOCK(ic);
RTWN_LOCK(sc);
switch (nstate) {
case IEEE80211_S_INIT:
sc->vaps_running--;
sc->monvaps_running--;
if (sc->vaps_running == 0) {
/* Turn link LED off. */
rtwn_set_led(sc, RTWN_LED_LINK, 0);
}
break;
case IEEE80211_S_RUN:
sc->vaps_running++;
sc->monvaps_running++;
if (sc->vaps_running == 1) {
/* Turn link LED on. */
rtwn_set_led(sc, RTWN_LED_LINK, 1);
}
break;
default:
/* NOTREACHED */
break;
}
RTWN_UNLOCK(sc);
IEEE80211_LOCK(ic);
}
return (uvp->newstate(vap, nstate, arg));
}
static int
rtwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
struct rtwn_vap *uvp = RTWN_VAP(vap);
struct ieee80211com *ic = vap->iv_ic;
struct rtwn_softc *sc = ic->ic_softc;
enum ieee80211_state ostate;
int error, early_newstate;
ostate = vap->iv_state;
RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s -> %s\n",
ieee80211_state_name[ostate], ieee80211_state_name[nstate]);
if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC &&
ostate == IEEE80211_S_INIT && nstate == IEEE80211_S_RUN) {
/* need to call iv_newstate() firstly */
error = uvp->newstate(vap, nstate, arg);
if (error != 0)
return (error);
early_newstate = 1;
} 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_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'. */
rtwn_set_mode(sc, R92C_MSR_NOLINK, uvp->id);
if (vap->iv_opmode == IEEE80211_M_IBSS) {
/* Stop periodical TSF synchronization. */
callout_stop(&uvp->tsf_sync_adhoc);
}
/* Disable TSF synchronization / beaconing. */
rtwn_beacon_enable(sc, uvp->id, 0);
rtwn_setbits_1(sc, R92C_BCN_CTRL(uvp->id),
0, R92C_BCN_CTRL_DIS_TSF_UDT0);
/* NB: monitor mode vaps are using port 0. */
if (uvp->id != 0 || sc->monvaps_running == 0) {
/* Reset TSF. */
rtwn_write_1(sc, R92C_DUAL_TSF_RST,
R92C_DUAL_TSF_RESET(uvp->id));
}
#ifndef RTWN_WITHOUT_UCODE
if ((ic->ic_caps & IEEE80211_C_PMGT) != 0 && uvp->id == 0) {
/* Disable power management. */
callout_stop(&sc->sc_pwrmode_init);
rtwn_set_pwrmode(sc, vap, 0);
}
#endif
if (sc->vaps_running - sc->monvaps_running > 0) {
/* Recalculate basic rates bitmap. */
rtwn_calc_basicrates(sc);
}
if (sc->vaps_running == sc->monvaps_running) {
/* Stop calibration. */
callout_stop(&sc->sc_calib_to);
/* Stop Rx of data frames. */
rtwn_write_2(sc, R92C_RXFLTMAP2, 0);
/* Reset EDCA parameters. */
rtwn_write_4(sc, R92C_EDCA_VO_PARAM, 0x002f3217);
rtwn_write_4(sc, R92C_EDCA_VI_PARAM, 0x005e4317);
rtwn_write_4(sc, R92C_EDCA_BE_PARAM, 0x00105320);
rtwn_write_4(sc, R92C_EDCA_BK_PARAM, 0x0000a444);
if (sc->vaps_running == 0) {
/* Turn link LED off. */
rtwn_set_led(sc, RTWN_LED_LINK, 0);
}
}
}
error = 0;
switch (nstate) {
case IEEE80211_S_SCAN:
/* Pause AC Tx queues. */
if (sc->vaps_running == 0)
rtwn_setbits_1(sc, R92C_TXPAUSE, 0, R92C_TX_QUEUE_AC);
break;
case IEEE80211_S_RUN:
error = rtwn_run(sc, vap);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: could not move to RUN state\n", __func__);
break;
}
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;
}
RTWN_UNLOCK(sc);
IEEE80211_LOCK(ic);
if (error != 0)
return (error);
return (early_newstate ? 0 : uvp->newstate(vap, nstate, arg));
}
static void
rtwn_calc_basicrates(struct rtwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
uint32_t basicrates;
int i;
RTWN_ASSERT_LOCKED(sc);
if (ic->ic_flags & IEEE80211_F_SCAN)
return; /* will be done by rtwn_scan_end(). */
basicrates = 0;
for (i = 0; i < nitems(sc->vaps); i++) {
struct rtwn_vap *rvp;
struct ieee80211vap *vap;
struct ieee80211_node *ni;
uint32_t rates;
rvp = sc->vaps[i];
if (rvp == NULL || rvp->curr_mode == R92C_MSR_NOLINK)
continue;
vap = &rvp->vap;
if (vap->iv_bss == NULL)
continue;
ni = ieee80211_ref_node(vap->iv_bss);
rtwn_get_rates(sc, &ni->ni_rates, NULL, &rates, NULL, 1);
basicrates |= rates;
ieee80211_free_node(ni);
}
if (basicrates == 0)
return;
/* XXX initial RTS rate? */
rtwn_set_basicrates(sc, basicrates);
}
static int
rtwn_run(struct rtwn_softc *sc, struct ieee80211vap *vap)
{
struct ieee80211com *ic = vap->iv_ic;
struct rtwn_vap *uvp = RTWN_VAP(vap);
struct ieee80211_node *ni;
uint8_t mode;
int error;
RTWN_ASSERT_LOCKED(sc);
error = 0;
ni = ieee80211_ref_node(vap->iv_bss);
if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
ni->ni_chan == IEEE80211_CHAN_ANYC) {
error = EINVAL;
goto fail;
}
switch (vap->iv_opmode) {
case IEEE80211_M_STA:
mode = R92C_MSR_INFRA;
break;
case IEEE80211_M_IBSS:
mode = R92C_MSR_ADHOC;
break;
case IEEE80211_M_HOSTAP:
mode = R92C_MSR_AP;
break;
default:
KASSERT(0, ("undefined opmode %d\n", vap->iv_opmode));
error = EINVAL;
goto fail;
}
/* Set media status to 'Associated'. */
rtwn_set_mode(sc, mode, uvp->id);
/* Set AssocID. */
/* XXX multi-vap? */
rtwn_write_2(sc, R92C_BCN_PSR_RPT,
0xc000 | IEEE80211_NODE_AID(ni));
/* Set BSSID. */
rtwn_set_bssid(sc, ni->ni_bssid, uvp->id);
/* Set beacon interval. */
rtwn_write_2(sc, R92C_BCN_INTERVAL(uvp->id), ni->ni_intval);
if (sc->vaps_running == sc->monvaps_running) {
/* Enable Rx of data frames. */
rtwn_write_2(sc, R92C_RXFLTMAP2, 0xffff);
/* Flush all AC queues. */
rtwn_write_1(sc, R92C_TXPAUSE, 0);
}
#ifndef RTWN_WITHOUT_UCODE
/* Upload (QoS) Null Data frame to firmware. */
/* Note: do this for port 0 only. */
if ((ic->ic_caps & IEEE80211_C_PMGT) != 0 &&
vap->iv_opmode == IEEE80211_M_STA && uvp->id == 0) {
error = rtwn_tx_fwpkt_check(sc, vap);
if (error != 0)
goto fail;
/* Setup power management. */
/*
* NB: it will be enabled immediately - delay it,
* so 4-Way handshake will not be interrupted.
*/
callout_reset(&sc->sc_pwrmode_init, 5*hz,
rtwn_pwrmode_init, sc);
}
#endif
/* Enable TSF synchronization. */
rtwn_tsf_sync_enable(sc, vap);
if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
vap->iv_opmode == IEEE80211_M_IBSS) {
error = rtwn_setup_beacon(sc, ni);
if (error != 0) {
device_printf(sc->sc_dev,
"unable to push beacon into the chip, "
"error %d\n", error);
goto fail;
}
}
/* Set ACK preamble type. */
rtwn_set_ack_preamble(sc);
/* Set basic rates mask. */
rtwn_calc_basicrates(sc);
#ifdef RTWN_TODO
rtwn_write_1(sc, R92C_SIFS_CCK + 1, 10);
rtwn_write_1(sc, R92C_SIFS_OFDM + 1, 10);
rtwn_write_1(sc, R92C_SPEC_SIFS + 1, 10);
rtwn_write_1(sc, R92C_MAC_SPEC_SIFS + 1, 10);
rtwn_write_1(sc, R92C_R2T_SIFS + 1, 10);
rtwn_write_1(sc, R92C_T2T_SIFS + 1, 10);
#endif
if (sc->vaps_running == sc->monvaps_running) {
/* Reset temperature calibration state machine. */
sc->sc_flags &= ~RTWN_TEMP_MEASURED;
sc->thcal_temp = sc->thermal_meter;
/* Start periodic calibration. */
callout_reset(&sc->sc_calib_to, 2*hz, rtwn_calib_to,
sc);
if (sc->vaps_running == 0) {
/* Turn link LED on. */
rtwn_set_led(sc, RTWN_LED_LINK, 1);
}
}
fail:
ieee80211_free_node(ni);
return (error);
}
#ifndef D4054
static void
rtwn_watchdog(void *arg)
{
struct rtwn_softc *sc = arg;
struct ieee80211com *ic = &sc->sc_ic;
RTWN_ASSERT_LOCKED(sc);
KASSERT(sc->sc_flags & RTWN_RUNNING, ("not running"));
if (sc->sc_tx_timer != 0 && --sc->sc_tx_timer == 0) {
ic_printf(ic, "device timeout\n");
ieee80211_restart_all(ic);
return;
}
callout_reset(&sc->sc_watchdog_to, hz, rtwn_watchdog, sc);
}
#endif
static void
rtwn_parent(struct ieee80211com *ic)
{
struct rtwn_softc *sc = ic->ic_softc;
struct ieee80211vap *vap;
if (ic->ic_nrunning > 0) {
if (rtwn_init(sc) != 0) {
IEEE80211_LOCK(ic);
TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next)
ieee80211_stop_locked(vap);
IEEE80211_UNLOCK(ic);
} else
ieee80211_start_all(ic);
} else
rtwn_stop(sc);
}
static int
rtwn_dma_init(struct rtwn_softc *sc)
{
#define RTWN_CHK(res) do { \
if (res != 0) \
return (EIO); \
} while(0)
uint16_t reg;
uint8_t tx_boundary;
int error;
/* Initialize LLT table. */
error = rtwn_llt_init(sc);
if (error != 0)
return (error);
/* Set the number of pages for each queue. */
RTWN_DPRINTF(sc, RTWN_DEBUG_RESET,
"%s: pages per queue: high %d, normal %d, low %d, public %d\n",
__func__, sc->nhqpages, sc->nnqpages, sc->nlqpages,
sc->npubqpages);
RTWN_CHK(rtwn_write_1(sc, R92C_RQPN_NPQ, sc->nnqpages));
RTWN_CHK(rtwn_write_4(sc, R92C_RQPN,
/* Set number of pages for public queue. */
SM(R92C_RQPN_PUBQ, sc->npubqpages) |
/* Set number of pages for high priority queue. */
SM(R92C_RQPN_HPQ, sc->nhqpages) |
/* Set number of pages for low priority queue. */
SM(R92C_RQPN_LPQ, sc->nlqpages) |
/* Load values. */
R92C_RQPN_LD));
/* Initialize TX buffer boundary. */
KASSERT(sc->page_count < 255 && sc->page_count > 0,
("page_count is %d\n", sc->page_count));
tx_boundary = sc->page_count + 1;
RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_BCNQ_BDNY, tx_boundary));
RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_MGQ_BDNY, tx_boundary));
RTWN_CHK(rtwn_write_1(sc, R92C_TXPKTBUF_WMAC_LBK_BF_HD, tx_boundary));
RTWN_CHK(rtwn_write_1(sc, R92C_TRXFF_BNDY, tx_boundary));
RTWN_CHK(rtwn_write_1(sc, R92C_TDECTRL + 1, tx_boundary));
error = rtwn_init_bcnq1_boundary(sc);
if (error != 0)
return (error);
/* Set queue to USB pipe mapping. */
/* Note: PCIe devices are using some magic number here. */
reg = rtwn_get_qmap(sc);
RTWN_CHK(rtwn_setbits_2(sc, R92C_TRXDMA_CTRL,
R92C_TRXDMA_CTRL_QMAP_M, reg));
/* Configure Tx/Rx DMA (PCIe). */
rtwn_set_desc_addr(sc);
/* Set Tx/Rx transfer page boundary. */
RTWN_CHK(rtwn_write_2(sc, R92C_TRXFF_BNDY + 2,
sc->rx_dma_size - 1));
/* Set Tx/Rx transfer page size. */
rtwn_set_page_size(sc);
return (0);
}
static int
rtwn_mac_init(struct rtwn_softc *sc)
{
int i, error;
/* Write MAC initialization values. */
for (i = 0; i < sc->mac_size; i++) {
error = rtwn_write_1(sc, sc->mac_prog[i].reg,
sc->mac_prog[i].val);
if (error != 0)
return (error);
}
return (0);
}
static void
rtwn_mrr_init(struct rtwn_softc *sc)
{
int i;
/* Drop rate index by 1 per retry. */
for (i = 0; i < R92C_DARFRC_SIZE; i++) {
rtwn_write_1(sc, R92C_DARFRC + i, i + 1);
rtwn_write_1(sc, R92C_RARFRC + i, i + 1);
}
}
static void
rtwn_scan_start(struct ieee80211com *ic)
{
struct rtwn_softc *sc = ic->ic_softc;
RTWN_LOCK(sc);
/* Pause beaconing. */
rtwn_setbits_1(sc, R92C_TXPAUSE, 0, R92C_TX_QUEUE_BCN);
/* Receive beacons / probe responses from any BSSID. */
if (sc->bcn_vaps == 0)
rtwn_set_rx_bssid_all(sc, 1);
RTWN_UNLOCK(sc);
}
static void
rtwn_scan_curchan(struct ieee80211_scan_state *ss, unsigned long maxdwell)
{
struct rtwn_softc *sc = ss->ss_ic->ic_softc;
/* Make link LED blink during scan. */
RTWN_LOCK(sc);
rtwn_set_led(sc, RTWN_LED_LINK, !sc->ledlink);
RTWN_UNLOCK(sc);
sc->sc_scan_curchan(ss, maxdwell);
}
static void
rtwn_scan_end(struct ieee80211com *ic)
{
struct rtwn_softc *sc = ic->ic_softc;
RTWN_LOCK(sc);
/* Restore limitations. */
if (ic->ic_promisc == 0 && sc->bcn_vaps == 0)
rtwn_set_rx_bssid_all(sc, 0);
/* Restore LED state. */
rtwn_set_led(sc, RTWN_LED_LINK, (sc->vaps_running != 0));
/* Restore basic rates mask. */
rtwn_calc_basicrates(sc);
/* Resume beaconing. */
rtwn_setbits_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_BCN, 0);
RTWN_UNLOCK(sc);
}
static void
rtwn_getradiocaps(struct ieee80211com *ic,
int maxchans, int *nchans, struct ieee80211_channel chans[])
{
struct rtwn_softc *sc = ic->ic_softc;
uint8_t bands[IEEE80211_MODE_BYTES];
int i;
memset(bands, 0, sizeof(bands));
setbit(bands, IEEE80211_MODE_11B);
setbit(bands, IEEE80211_MODE_11G);
setbit(bands, IEEE80211_MODE_11NG);
ieee80211_add_channel_list_2ghz(chans, maxchans, nchans,
rtwn_chan_2ghz, nitems(rtwn_chan_2ghz), bands,
!!(ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40));
/* XXX workaround add_channel_list() limitations */
setbit(bands, IEEE80211_MODE_11A);
setbit(bands, IEEE80211_MODE_11NA);
for (i = 0; i < nitems(sc->chan_num_5ghz); i++) {
if (sc->chan_num_5ghz[i] == 0)
continue;
ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
sc->chan_list_5ghz[i], sc->chan_num_5ghz[i], bands,
!!(ic->ic_htcaps & IEEE80211_HTCAP_CHWIDTH40));
}
}
static void
rtwn_update_chw(struct ieee80211com *ic)
{
}
static void
rtwn_set_channel(struct ieee80211com *ic)
{
struct rtwn_softc *sc = ic->ic_softc;
struct ieee80211_channel *c = ic->ic_curchan;
RTWN_LOCK(sc);
rtwn_set_chan(sc, c);
sc->sc_rxtap.wr_chan_freq = htole16(c->ic_freq);
sc->sc_rxtap.wr_chan_flags = htole16(c->ic_flags);
sc->sc_txtap.wt_chan_freq = htole16(c->ic_freq);
sc->sc_txtap.wt_chan_flags = htole16(c->ic_flags);
RTWN_UNLOCK(sc);
}
static int
rtwn_wme_update(struct ieee80211com *ic)
{
struct chanAccParams chp;
struct ieee80211_channel *c = ic->ic_curchan;
struct rtwn_softc *sc = ic->ic_softc;
struct wmeParams *wmep = sc->cap_wmeParams;
uint8_t aifs, acm, slottime;
int ac;
ieee80211_wme_ic_getparams(ic, &chp);
/* Prevent possible races. */
IEEE80211_LOCK(ic); /* XXX */
RTWN_LOCK(sc);
memcpy(wmep, chp.cap_wmeParams, sizeof(sc->cap_wmeParams));
RTWN_UNLOCK(sc);
IEEE80211_UNLOCK(ic);
acm = 0;
slottime = IEEE80211_GET_SLOTTIME(ic);
RTWN_LOCK(sc);
for (ac = WME_AC_BE; ac < WME_NUM_AC; ac++) {
/* AIFS[AC] = AIFSN[AC] * aSlotTime + aSIFSTime. */
aifs = wmep[ac].wmep_aifsn * slottime +
(IEEE80211_IS_CHAN_5GHZ(c) ?
IEEE80211_DUR_OFDM_SIFS : IEEE80211_DUR_SIFS);
rtwn_write_4(sc, wme2reg[ac],
SM(R92C_EDCA_PARAM_TXOP, wmep[ac].wmep_txopLimit) |
SM(R92C_EDCA_PARAM_ECWMIN, wmep[ac].wmep_logcwmin) |
SM(R92C_EDCA_PARAM_ECWMAX, wmep[ac].wmep_logcwmax) |
SM(R92C_EDCA_PARAM_AIFS, aifs));
if (ac != WME_AC_BE)
acm |= wmep[ac].wmep_acm << ac;
}
if (acm != 0)
acm |= R92C_ACMHWCTRL_EN;
rtwn_setbits_1(sc, R92C_ACMHWCTRL, R92C_ACMHWCTRL_ACM_MASK, acm);
RTWN_UNLOCK(sc);
return 0;
}
static void
rtwn_update_slot(struct ieee80211com *ic)
{
rtwn_cmd_sleepable(ic->ic_softc, NULL, 0, rtwn_update_slot_cb);
}
static void
rtwn_update_slot_cb(struct rtwn_softc *sc, union sec_param *data)
{
struct ieee80211com *ic = &sc->sc_ic;
uint8_t slottime;
slottime = IEEE80211_GET_SLOTTIME(ic);
RTWN_DPRINTF(sc, RTWN_DEBUG_STATE, "%s: setting slot time to %uus\n",
__func__, slottime);
rtwn_write_1(sc, R92C_SLOT, slottime);
rtwn_update_aifs(sc, slottime);
}
static void
rtwn_update_aifs(struct rtwn_softc *sc, uint8_t slottime)
{
struct ieee80211_channel *c = sc->sc_ic.ic_curchan;
const struct wmeParams *wmep = sc->cap_wmeParams;
uint8_t aifs, ac;
for (ac = WME_AC_BE; ac < WME_NUM_AC; ac++) {
/* AIFS[AC] = AIFSN[AC] * aSlotTime + aSIFSTime. */
aifs = wmep[ac].wmep_aifsn * slottime +
(IEEE80211_IS_CHAN_5GHZ(c) ?
IEEE80211_DUR_OFDM_SIFS : IEEE80211_DUR_SIFS);
rtwn_write_1(sc, wme2reg[ac], aifs);
}
}
static void
rtwn_update_promisc(struct ieee80211com *ic)
{
struct rtwn_softc *sc = ic->ic_softc;
RTWN_LOCK(sc);
if (sc->sc_flags & RTWN_RUNNING)
rtwn_set_promisc(sc);
RTWN_UNLOCK(sc);
}
static void
rtwn_update_mcast(struct ieee80211com *ic)
{
struct rtwn_softc *sc = ic->ic_softc;
RTWN_LOCK(sc);
if (sc->sc_flags & RTWN_RUNNING)
rtwn_set_multi(sc);
RTWN_UNLOCK(sc);
}
static int
rtwn_set_bssid(struct rtwn_softc *sc, const uint8_t *bssid, int id)
{
int error;
error = rtwn_write_4(sc, R92C_BSSID(id), le32dec(&bssid[0]));
if (error != 0)
return (error);
error = rtwn_write_2(sc, R92C_BSSID(id) + 4, le16dec(&bssid[4]));
return (error);
}
static int
rtwn_set_macaddr(struct rtwn_softc *sc, const uint8_t *addr, int id)
{
int error;
error = rtwn_write_4(sc, R92C_MACID(id), le32dec(&addr[0]));
if (error != 0)
return (error);
error = rtwn_write_2(sc, R92C_MACID(id) + 4, le16dec(&addr[4]));
return (error);
}
static struct ieee80211_node *
rtwn_node_alloc(struct ieee80211vap *vap,
const uint8_t mac[IEEE80211_ADDR_LEN])
{
struct rtwn_node *un;
un = malloc(sizeof (struct rtwn_node), M_80211_NODE,
M_NOWAIT | M_ZERO);
if (un == NULL)
return NULL;
un->id = RTWN_MACID_UNDEFINED;
un->avg_pwdb = -1;
return &un->ni;
}
static void
rtwn_newassoc(struct ieee80211_node *ni, int isnew __unused)
{
struct rtwn_softc *sc = ni->ni_ic->ic_softc;
struct rtwn_node *un = RTWN_NODE(ni);
int id;
if (un->id != RTWN_MACID_UNDEFINED)
return;
RTWN_NT_LOCK(sc);
for (id = 0; id <= sc->macid_limit; id++) {
if (id != RTWN_MACID_BC && sc->node_list[id] == NULL) {
un->id = id;
sc->node_list[id] = ni;
break;
}
}
RTWN_NT_UNLOCK(sc);
if (id > sc->macid_limit) {
device_printf(sc->sc_dev, "%s: node table is full\n",
__func__);
return;
}
/* Notify firmware. */
id |= RTWN_MACID_VALID;
rtwn_cmd_sleepable(sc, &id, sizeof(id), rtwn_set_media_status);
}
static void
rtwn_node_free(struct ieee80211_node *ni)
{
struct rtwn_softc *sc = ni->ni_ic->ic_softc;
struct rtwn_node *un = RTWN_NODE(ni);
RTWN_NT_LOCK(sc);
if (un->id != RTWN_MACID_UNDEFINED) {
sc->node_list[un->id] = NULL;
rtwn_cmd_sleepable(sc, &un->id, sizeof(un->id),
rtwn_set_media_status);
}
RTWN_NT_UNLOCK(sc);
sc->sc_node_free(ni);
}
static void
rtwn_init_beacon_reg(struct rtwn_softc *sc)
{
rtwn_write_1(sc, R92C_BCN_CTRL(0), R92C_BCN_CTRL_DIS_TSF_UDT0);
rtwn_write_1(sc, R92C_BCN_CTRL(1), R92C_BCN_CTRL_DIS_TSF_UDT0);
rtwn_write_2(sc, R92C_TBTT_PROHIBIT, 0x6404);
rtwn_write_1(sc, R92C_DRVERLYINT, 0x05);
rtwn_write_1(sc, R92C_BCNDMATIM, 0x02);
rtwn_write_2(sc, R92C_BCNTCFG, 0x660f);
}
static int
rtwn_init(struct rtwn_softc *sc)
{
struct ieee80211com *ic = &sc->sc_ic;
int i, error;
RTWN_LOCK(sc);
if (sc->sc_flags & RTWN_RUNNING) {
RTWN_UNLOCK(sc);
return (0);
}
sc->sc_flags |= RTWN_STARTED;
/* Power on adapter. */
error = rtwn_power_on(sc);
if (error != 0)
goto fail;
#ifndef RTWN_WITHOUT_UCODE
/* Load 8051 microcode. */
error = rtwn_load_firmware(sc);
if (error == 0)
sc->sc_flags |= RTWN_FW_LOADED;
/* Init firmware commands ring. */
sc->fwcur = 0;
#endif
/* Initialize MAC block. */
error = rtwn_mac_init(sc);
if (error != 0) {
device_printf(sc->sc_dev,
"%s: error while initializing MAC block\n", __func__);
goto fail;
}
/* Initialize DMA. */
error = rtwn_dma_init(sc);
if (error != 0)
goto fail;
/* Drop incorrect TX (USB). */
rtwn_drop_incorrect_tx(sc);
/* Set info size in Rx descriptors (in 64-bit words). */
rtwn_write_1(sc, R92C_RX_DRVINFO_SZ, R92C_RX_DRVINFO_SZ_DEF);
/* Init interrupts. */
rtwn_init_intr(sc);
for (i = 0; i < nitems(sc->vaps); i++) {
struct rtwn_vap *uvp = sc->vaps[i];
/* Set initial network type. */
rtwn_set_mode(sc, R92C_MSR_NOLINK, i);
if (uvp == NULL)
continue;
/* Set MAC address. */
error = rtwn_set_macaddr(sc, uvp->vap.iv_myaddr, uvp->id);
if (error != 0)
goto fail;
}
/* Initialize Rx filter. */
rtwn_rxfilter_init(sc);
/* Set short/long retry limits. */
rtwn_write_2(sc, R92C_RL,
SM(R92C_RL_SRL, 0x30) | SM(R92C_RL_LRL, 0x30));
/* Initialize EDCA parameters. */
rtwn_init_edca(sc);
rtwn_setbits_1(sc, R92C_FWHW_TXQ_CTRL, 0,
R92C_FWHW_TXQ_CTRL_AMPDU_RTY_NEW);
/* Set ACK timeout. */
rtwn_write_1(sc, R92C_ACKTO, sc->ackto);
/* Setup aggregation. */
/* Tx aggregation. */
rtwn_init_tx_agg(sc);
rtwn_init_rx_agg(sc);
/* Initialize beacon parameters. */
rtwn_init_beacon_reg(sc);
/* Init A-MPDU parameters. */
rtwn_init_ampdu(sc);
/* Init MACTXEN / MACRXEN after setting RxFF boundary. */
rtwn_setbits_1(sc, R92C_CR, 0, R92C_CR_MACTXEN | R92C_CR_MACRXEN);
/* Initialize BB/RF blocks. */
rtwn_init_bb(sc);
rtwn_init_rf(sc);
/* Initialize wireless band. */
rtwn_set_chan(sc, ic->ic_curchan);
/* Clear per-station keys table. */
rtwn_init_cam(sc);
/* Enable decryption / encryption. */
rtwn_init_seccfg(sc);
/* Install static keys (if any). */
for (i = 0; i < nitems(sc->vaps); i++) {
if (sc->vaps[i] != NULL) {
error = rtwn_init_static_keys(sc, sc->vaps[i]);
if (error != 0)
goto fail;
}
}
/* Initialize antenna selection. */
rtwn_init_antsel(sc);
/* Enable hardware sequence numbering. */
rtwn_write_1(sc, R92C_HWSEQ_CTRL, R92C_TX_QUEUE_ALL);
/* Disable BAR. */
rtwn_write_4(sc, R92C_BAR_MODE_CTRL, 0x0201ffff);
/* NAV limit. */
rtwn_write_1(sc, R92C_NAV_UPPER, 0);
/* Initialize GPIO setting. */
rtwn_setbits_1(sc, R92C_GPIO_MUXCFG, R92C_GPIO_MUXCFG_ENBT, 0);
/* Initialize MRR. */
rtwn_mrr_init(sc);
/* Device-specific post initialization. */
rtwn_post_init(sc);
rtwn_start_xfers(sc);
#ifndef D4054
callout_reset(&sc->sc_watchdog_to, hz, rtwn_watchdog, sc);
#endif
sc->sc_flags |= RTWN_RUNNING;
fail:
RTWN_UNLOCK(sc);
return (error);
}
static void
rtwn_stop(struct rtwn_softc *sc)
{
RTWN_LOCK(sc);
if (!(sc->sc_flags & RTWN_STARTED)) {
RTWN_UNLOCK(sc);
return;
}
#ifndef D4054
callout_stop(&sc->sc_watchdog_to);
sc->sc_tx_timer = 0;
#endif
sc->sc_flags &= ~(RTWN_STARTED | RTWN_RUNNING | RTWN_FW_LOADED);
sc->sc_flags &= ~RTWN_TEMP_MEASURED;
sc->fwver = 0;
sc->thcal_temp = 0;
sc->cur_bcnq_id = RTWN_VAP_ID_INVALID;
bzero(&sc->last_physt, sizeof(sc->last_physt));
#ifdef D4054
ieee80211_tx_watchdog_stop(&sc->sc_ic);
#endif
rtwn_abort_xfers(sc);
rtwn_drain_mbufq(sc);
rtwn_power_off(sc);
rtwn_reset_lists(sc, NULL);
RTWN_UNLOCK(sc);
}
MODULE_VERSION(rtwn, 2);
MODULE_DEPEND(rtwn, wlan, 1, 1, 1);
#ifndef RTWN_WITHOUT_UCODE
MODULE_DEPEND(rtwn, firmware, 1, 1, 1);
#endif
