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if_wpi.c (200530) if_wpi.c (206358)
1/*-
2 * Copyright (c) 2006,2007
3 * Damien Bergamini <damien.bergamini@free.fr>
4 * Benjamin Close <Benjamin.Close@clearchain.com>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.

--- 5 unchanged lines hidden (view full) ---

14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#define VERSION "20071127"
20
21#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2006,2007
3 * Damien Bergamini <damien.bergamini@free.fr>
4 * Benjamin Close <Benjamin.Close@clearchain.com>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.

--- 5 unchanged lines hidden (view full) ---

14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#define VERSION "20071127"
20
21#include <sys/cdefs.h>
22__FBSDID("$FreeBSD: head/sys/dev/wpi/if_wpi.c 200530 2009-12-14 19:18:02Z gavin $");
22__FBSDID("$FreeBSD: head/sys/dev/wpi/if_wpi.c 206358 2010-04-07 15:29:13Z rpaulo $");
23
24/*
25 * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters.
26 *
27 * The 3945ABG network adapter doesn't use traditional hardware as
28 * many other adaptors do. Instead at run time the eeprom is set into a known
29 * state and told to load boot firmware. The boot firmware loads an init and a
30 * main binary firmware image into SRAM on the card via DMA.

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88#include <net/ethernet.h>
89#include <net/if_dl.h>
90#include <net/if_media.h>
91#include <net/if_types.h>
92
93#include <net80211/ieee80211_var.h>
94#include <net80211/ieee80211_radiotap.h>
95#include <net80211/ieee80211_regdomain.h>
23
24/*
25 * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters.
26 *
27 * The 3945ABG network adapter doesn't use traditional hardware as
28 * many other adaptors do. Instead at run time the eeprom is set into a known
29 * state and told to load boot firmware. The boot firmware loads an init and a
30 * main binary firmware image into SRAM on the card via DMA.

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88#include <net/ethernet.h>
89#include <net/if_dl.h>
90#include <net/if_media.h>
91#include <net/if_types.h>
92
93#include <net80211/ieee80211_var.h>
94#include <net80211/ieee80211_radiotap.h>
95#include <net80211/ieee80211_regdomain.h>
96#include <net80211/ieee80211_ratectl.h>
96
97#include <netinet/in.h>
98#include <netinet/in_systm.h>
99#include <netinet/in_var.h>
100#include <netinet/ip.h>
101#include <netinet/if_ether.h>
102
103#include <dev/wpi/if_wpireg.h>

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168static void wpi_free_shared(struct wpi_softc *);
169static int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
170static void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
171static void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
172static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
173 int, int);
174static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
175static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
97
98#include <netinet/in.h>
99#include <netinet/in_systm.h>
100#include <netinet/in_var.h>
101#include <netinet/ip.h>
102#include <netinet/if_ether.h>
103
104#include <dev/wpi/if_wpireg.h>

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169static void wpi_free_shared(struct wpi_softc *);
170static int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
171static void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
172static void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *);
173static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *,
174 int, int);
175static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
176static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *);
176static struct ieee80211_node *wpi_node_alloc(struct ieee80211vap *,
177 const uint8_t mac[IEEE80211_ADDR_LEN]);
178static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
179static void wpi_mem_lock(struct wpi_softc *);
180static void wpi_mem_unlock(struct wpi_softc *);
181static uint32_t wpi_mem_read(struct wpi_softc *, uint16_t);
182static void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t);
183static void wpi_mem_write_region_4(struct wpi_softc *, uint16_t,
184 const uint32_t *, int);
185static uint16_t wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int);

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230static void wpi_hwreset(void *, int);
231static void wpi_rfreset(void *, int);
232static void wpi_hw_config(struct wpi_softc *);
233static void wpi_init(void *);
234static void wpi_init_locked(struct wpi_softc *, int);
235static void wpi_stop(struct wpi_softc *);
236static void wpi_stop_locked(struct wpi_softc *);
237
177static int wpi_newstate(struct ieee80211vap *, enum ieee80211_state, int);
178static void wpi_mem_lock(struct wpi_softc *);
179static void wpi_mem_unlock(struct wpi_softc *);
180static uint32_t wpi_mem_read(struct wpi_softc *, uint16_t);
181static void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t);
182static void wpi_mem_write_region_4(struct wpi_softc *, uint16_t,
183 const uint32_t *, int);
184static uint16_t wpi_read_prom_data(struct wpi_softc *, uint32_t, void *, int);

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229static void wpi_hwreset(void *, int);
230static void wpi_rfreset(void *, int);
231static void wpi_hw_config(struct wpi_softc *);
232static void wpi_init(void *);
233static void wpi_init_locked(struct wpi_softc *, int);
234static void wpi_stop(struct wpi_softc *);
235static void wpi_stop_locked(struct wpi_softc *);
236
238static void wpi_newassoc(struct ieee80211_node *, int);
239static int wpi_set_txpower(struct wpi_softc *, struct ieee80211_channel *,
240 int);
241static void wpi_calib_timeout(void *);
242static void wpi_power_calibration(struct wpi_softc *, int);
243static int wpi_get_power_index(struct wpi_softc *,
244 struct wpi_power_group *, struct ieee80211_channel *, int);
245#ifdef WPI_DEBUG
246static const char *wpi_cmd_str(int);

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663 ifp->if_ioctl = wpi_ioctl;
664 ifp->if_start = wpi_start;
665 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
666 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
667 IFQ_SET_READY(&ifp->if_snd);
668
669 ieee80211_ifattach(ic, macaddr);
670 /* override default methods */
237static int wpi_set_txpower(struct wpi_softc *, struct ieee80211_channel *,
238 int);
239static void wpi_calib_timeout(void *);
240static void wpi_power_calibration(struct wpi_softc *, int);
241static int wpi_get_power_index(struct wpi_softc *,
242 struct wpi_power_group *, struct ieee80211_channel *, int);
243#ifdef WPI_DEBUG
244static const char *wpi_cmd_str(int);

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661 ifp->if_ioctl = wpi_ioctl;
662 ifp->if_start = wpi_start;
663 IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
664 ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
665 IFQ_SET_READY(&ifp->if_snd);
666
667 ieee80211_ifattach(ic, macaddr);
668 /* override default methods */
671 ic->ic_node_alloc = wpi_node_alloc;
672 ic->ic_newassoc = wpi_newassoc;
673 ic->ic_raw_xmit = wpi_raw_xmit;
674 ic->ic_wme.wme_update = wpi_wme_update;
675 ic->ic_scan_start = wpi_scan_start;
676 ic->ic_scan_end = wpi_scan_end;
677 ic->ic_set_channel = wpi_set_channel;
678 ic->ic_scan_curchan = wpi_scan_curchan;
679 ic->ic_scan_mindwell = wpi_scan_mindwell;
680

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777 if (wvp == NULL)
778 return NULL;
779 vap = &wvp->vap;
780 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
781 /* override with driver methods */
782 wvp->newstate = vap->iv_newstate;
783 vap->iv_newstate = wpi_newstate;
784
669 ic->ic_raw_xmit = wpi_raw_xmit;
670 ic->ic_wme.wme_update = wpi_wme_update;
671 ic->ic_scan_start = wpi_scan_start;
672 ic->ic_scan_end = wpi_scan_end;
673 ic->ic_set_channel = wpi_set_channel;
674 ic->ic_scan_curchan = wpi_scan_curchan;
675 ic->ic_scan_mindwell = wpi_scan_mindwell;
676

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773 if (wvp == NULL)
774 return NULL;
775 vap = &wvp->vap;
776 ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac);
777 /* override with driver methods */
778 wvp->newstate = vap->iv_newstate;
779 vap->iv_newstate = wpi_newstate;
780
785 ieee80211_amrr_init(&wvp->amrr, vap,
786 IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD,
787 IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD,
788 500 /*ms*/);
789
781 ieee80211_ratectl_init(vap);
790 /* complete setup */
791 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
792 ic->ic_opmode = opmode;
793 return vap;
794}
795
796static void
797wpi_vap_delete(struct ieee80211vap *vap)
798{
799 struct wpi_vap *wvp = WPI_VAP(vap);
800
782 /* complete setup */
783 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status);
784 ic->ic_opmode = opmode;
785 return vap;
786}
787
788static void
789wpi_vap_delete(struct ieee80211vap *vap)
790{
791 struct wpi_vap *wvp = WPI_VAP(vap);
792
801 ieee80211_amrr_cleanup(&wvp->amrr);
793 ieee80211_ratectl_deinit(vap);
802 ieee80211_vap_detach(vap);
803 free(wvp, M_80211_VAP);
804}
805
806static void
807wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
808{
809 if (error != 0)

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1231 if (ifp->if_flags & IFF_UP) {
1232 wpi_init(ifp->if_softc);
1233 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1234 wpi_start(ifp);
1235 }
1236 return 0;
1237}
1238
794 ieee80211_vap_detach(vap);
795 free(wvp, M_80211_VAP);
796}
797
798static void
799wpi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
800{
801 if (error != 0)

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1223 if (ifp->if_flags & IFF_UP) {
1224 wpi_init(ifp->if_softc);
1225 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
1226 wpi_start(ifp);
1227 }
1228 return 0;
1229}
1230
1239/* ARGSUSED */
1240static struct ieee80211_node *
1241wpi_node_alloc(struct ieee80211vap *vap __unused,
1242 const uint8_t mac[IEEE80211_ADDR_LEN] __unused)
1243{
1244 struct wpi_node *wn;
1245
1246 wn = malloc(sizeof (struct wpi_node), M_80211_NODE, M_NOWAIT | M_ZERO);
1247
1248 return &wn->ni;
1249}
1250
1251/**
1252 * Called by net80211 when ever there is a change to 80211 state machine
1253 */
1254static int
1255wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1256{
1257 struct wpi_vap *wvp = WPI_VAP(vap);
1258 struct ieee80211com *ic = vap->iv_ic;

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1562
1563static void
1564wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1565{
1566 struct ifnet *ifp = sc->sc_ifp;
1567 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
1568 struct wpi_tx_data *txdata = &ring->data[desc->idx];
1569 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
1231/**
1232 * Called by net80211 when ever there is a change to 80211 state machine
1233 */
1234static int
1235wpi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
1236{
1237 struct wpi_vap *wvp = WPI_VAP(vap);
1238 struct ieee80211com *ic = vap->iv_ic;

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1542
1543static void
1544wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc)
1545{
1546 struct ifnet *ifp = sc->sc_ifp;
1547 struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3];
1548 struct wpi_tx_data *txdata = &ring->data[desc->idx];
1549 struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1);
1570 struct wpi_node *wn = (struct wpi_node *)txdata->ni;
1550 struct ieee80211_node *ni = txdata->ni;
1551 struct ieee80211vap *vap = ni->ni_vap;
1552 int retrycnt = 0;
1571
1572 DPRINTFN(WPI_DEBUG_TX, ("tx done: qid=%d idx=%d retries=%d nkill=%d "
1573 "rate=%x duration=%d status=%x\n", desc->qid, desc->idx,
1574 stat->ntries, stat->nkill, stat->rate, le32toh(stat->duration),
1575 le32toh(stat->status)));
1576
1577 /*
1578 * Update rate control statistics for the node.
1579 * XXX we should not count mgmt frames since they're always sent at
1580 * the lowest available bit-rate.
1581 * XXX frames w/o ACK shouldn't be used either
1582 */
1553
1554 DPRINTFN(WPI_DEBUG_TX, ("tx done: qid=%d idx=%d retries=%d nkill=%d "
1555 "rate=%x duration=%d status=%x\n", desc->qid, desc->idx,
1556 stat->ntries, stat->nkill, stat->rate, le32toh(stat->duration),
1557 le32toh(stat->status)));
1558
1559 /*
1560 * Update rate control statistics for the node.
1561 * XXX we should not count mgmt frames since they're always sent at
1562 * the lowest available bit-rate.
1563 * XXX frames w/o ACK shouldn't be used either
1564 */
1583 wn->amn.amn_txcnt++;
1584 if (stat->ntries > 0) {
1585 DPRINTFN(WPI_DEBUG_TX, ("%d retries\n", stat->ntries));
1565 if (stat->ntries > 0) {
1566 DPRINTFN(WPI_DEBUG_TX, ("%d retries\n", stat->ntries));
1586 wn->amn.amn_retrycnt++;
1567 retrycnt = 1;
1587 }
1568 }
1569 ieee80211_ratectl_tx_complete(vap, ni, IEEE80211_RATECTL_TX_SUCCESS,
1570 &retrycnt, NULL);
1588
1589 /* XXX oerrors should only count errors !maxtries */
1590 if ((le32toh(stat->status) & 0xff) != 1)
1591 ifp->if_oerrors++;
1592 else
1593 ifp->if_opackets++;
1594
1595 bus_dmamap_sync(ring->data_dmat, txdata->map, BUS_DMASYNC_POSTWRITE);

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1914 else
1915 tx->timeout = htole16(2);
1916 rate = tp->mgmtrate;
1917 } else if (ismcast) {
1918 rate = tp->mcastrate;
1919 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1920 rate = tp->ucastrate;
1921 } else {
1571
1572 /* XXX oerrors should only count errors !maxtries */
1573 if ((le32toh(stat->status) & 0xff) != 1)
1574 ifp->if_oerrors++;
1575 else
1576 ifp->if_opackets++;
1577
1578 bus_dmamap_sync(ring->data_dmat, txdata->map, BUS_DMASYNC_POSTWRITE);

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1897 else
1898 tx->timeout = htole16(2);
1899 rate = tp->mgmtrate;
1900 } else if (ismcast) {
1901 rate = tp->mcastrate;
1902 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) {
1903 rate = tp->ucastrate;
1904 } else {
1922 (void) ieee80211_amrr_choose(ni, &WPI_NODE(ni)->amn);
1905 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1923 rate = ni->ni_txrate;
1924 }
1925 tx->rate = wpi_plcp_signal(rate);
1926
1927 /* be very persistant at sending frames out */
1928#if 0
1929 tx->data_ntries = tp->maxretry;
1930#else

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3207wpi_stop(struct wpi_softc *sc)
3208{
3209 WPI_LOCK(sc);
3210 wpi_stop_locked(sc);
3211 WPI_UNLOCK(sc);
3212}
3213
3214static void
1906 rate = ni->ni_txrate;
1907 }
1908 tx->rate = wpi_plcp_signal(rate);
1909
1910 /* be very persistant at sending frames out */
1911#if 0
1912 tx->data_ntries = tp->maxretry;
1913#else

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3190wpi_stop(struct wpi_softc *sc)
3191{
3192 WPI_LOCK(sc);
3193 wpi_stop_locked(sc);
3194 WPI_UNLOCK(sc);
3195}
3196
3197static void
3215wpi_newassoc(struct ieee80211_node *ni, int isnew)
3216{
3217 struct ieee80211vap *vap = ni->ni_vap;
3218 struct wpi_vap *wvp = WPI_VAP(vap);
3219
3220 ieee80211_amrr_node_init(&wvp->amrr, &WPI_NODE(ni)->amn, ni);
3221}
3222
3223static void
3224wpi_calib_timeout(void *arg)
3225{
3226 struct wpi_softc *sc = arg;
3227 struct ifnet *ifp = sc->sc_ifp;
3228 struct ieee80211com *ic = ifp->if_l2com;
3229 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3230 int temp;
3231

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3701 return "UNKNOWN CMD"; /* Make the compiler happy */
3702 }
3703}
3704#endif
3705
3706MODULE_DEPEND(wpi, pci, 1, 1, 1);
3707MODULE_DEPEND(wpi, wlan, 1, 1, 1);
3708MODULE_DEPEND(wpi, firmware, 1, 1, 1);
3198wpi_calib_timeout(void *arg)
3199{
3200 struct wpi_softc *sc = arg;
3201 struct ifnet *ifp = sc->sc_ifp;
3202 struct ieee80211com *ic = ifp->if_l2com;
3203 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
3204 int temp;
3205

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3675 return "UNKNOWN CMD"; /* Make the compiler happy */
3676 }
3677}
3678#endif
3679
3680MODULE_DEPEND(wpi, pci, 1, 1, 1);
3681MODULE_DEPEND(wpi, wlan, 1, 1, 1);
3682MODULE_DEPEND(wpi, firmware, 1, 1, 1);
3709MODULE_DEPEND(wpi, wlan_amrr, 1, 1, 1);