rt2661.c revision 206371
1156321Sdamien/* $FreeBSD: head/sys/dev/ral/rt2661.c 206371 2010-04-07 17:51:06Z rpaulo $ */ 2156321Sdamien 3156321Sdamien/*- 4156321Sdamien * Copyright (c) 2006 5156321Sdamien * Damien Bergamini <damien.bergamini@free.fr> 6156321Sdamien * 7156321Sdamien * Permission to use, copy, modify, and distribute this software for any 8156321Sdamien * purpose with or without fee is hereby granted, provided that the above 9156321Sdamien * copyright notice and this permission notice appear in all copies. 10156321Sdamien * 11156321Sdamien * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12156321Sdamien * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13156321Sdamien * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14156321Sdamien * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15156321Sdamien * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16156321Sdamien * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17156321Sdamien * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18156321Sdamien */ 19156321Sdamien 20156321Sdamien#include <sys/cdefs.h> 21156321Sdamien__FBSDID("$FreeBSD: head/sys/dev/ral/rt2661.c 206371 2010-04-07 17:51:06Z rpaulo $"); 22156321Sdamien 23156321Sdamien/*- 24156321Sdamien * Ralink Technology RT2561, RT2561S and RT2661 chipset driver 25156321Sdamien * http://www.ralinktech.com/ 26156321Sdamien */ 27156321Sdamien 28156321Sdamien#include <sys/param.h> 29156321Sdamien#include <sys/sysctl.h> 30156321Sdamien#include <sys/sockio.h> 31156321Sdamien#include <sys/mbuf.h> 32156321Sdamien#include <sys/kernel.h> 33156321Sdamien#include <sys/socket.h> 34156321Sdamien#include <sys/systm.h> 35156321Sdamien#include <sys/malloc.h> 36164982Skevlo#include <sys/lock.h> 37164982Skevlo#include <sys/mutex.h> 38156321Sdamien#include <sys/module.h> 39156321Sdamien#include <sys/bus.h> 40156321Sdamien#include <sys/endian.h> 41178354Ssam#include <sys/firmware.h> 42156321Sdamien 43156321Sdamien#include <machine/bus.h> 44156321Sdamien#include <machine/resource.h> 45156321Sdamien#include <sys/rman.h> 46156321Sdamien 47156321Sdamien#include <net/bpf.h> 48156321Sdamien#include <net/if.h> 49156321Sdamien#include <net/if_arp.h> 50156321Sdamien#include <net/ethernet.h> 51156321Sdamien#include <net/if_dl.h> 52156321Sdamien#include <net/if_media.h> 53156321Sdamien#include <net/if_types.h> 54156321Sdamien 55156321Sdamien#include <net80211/ieee80211_var.h> 56156321Sdamien#include <net80211/ieee80211_radiotap.h> 57170530Ssam#include <net80211/ieee80211_regdomain.h> 58206358Srpaulo#include <net80211/ieee80211_ratectl.h> 59156321Sdamien 60156321Sdamien#include <netinet/in.h> 61156321Sdamien#include <netinet/in_systm.h> 62156321Sdamien#include <netinet/in_var.h> 63156321Sdamien#include <netinet/ip.h> 64156321Sdamien#include <netinet/if_ether.h> 65156321Sdamien 66156327Ssilby#include <dev/ral/rt2661reg.h> 67156327Ssilby#include <dev/ral/rt2661var.h> 68156321Sdamien 69178354Ssam#define RAL_DEBUG 70156321Sdamien#ifdef RAL_DEBUG 71178354Ssam#define DPRINTF(sc, fmt, ...) do { \ 72178354Ssam if (sc->sc_debug > 0) \ 73178354Ssam printf(fmt, __VA_ARGS__); \ 74178354Ssam} while (0) 75178354Ssam#define DPRINTFN(sc, n, fmt, ...) do { \ 76178354Ssam if (sc->sc_debug >= (n)) \ 77178354Ssam printf(fmt, __VA_ARGS__); \ 78178354Ssam} while (0) 79156321Sdamien#else 80178354Ssam#define DPRINTF(sc, fmt, ...) 81178354Ssam#define DPRINTFN(sc, n, fmt, ...) 82156321Sdamien#endif 83156321Sdamien 84178354Ssamstatic struct ieee80211vap *rt2661_vap_create(struct ieee80211com *, 85178354Ssam const char name[IFNAMSIZ], int unit, int opmode, 86178354Ssam int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 87178354Ssam const uint8_t mac[IEEE80211_ADDR_LEN]); 88178354Ssamstatic void rt2661_vap_delete(struct ieee80211vap *); 89156321Sdamienstatic void rt2661_dma_map_addr(void *, bus_dma_segment_t *, int, 90156321Sdamien int); 91156321Sdamienstatic int rt2661_alloc_tx_ring(struct rt2661_softc *, 92156321Sdamien struct rt2661_tx_ring *, int); 93156321Sdamienstatic void rt2661_reset_tx_ring(struct rt2661_softc *, 94156321Sdamien struct rt2661_tx_ring *); 95156321Sdamienstatic void rt2661_free_tx_ring(struct rt2661_softc *, 96156321Sdamien struct rt2661_tx_ring *); 97156321Sdamienstatic int rt2661_alloc_rx_ring(struct rt2661_softc *, 98156321Sdamien struct rt2661_rx_ring *, int); 99156321Sdamienstatic void rt2661_reset_rx_ring(struct rt2661_softc *, 100156321Sdamien struct rt2661_rx_ring *); 101156321Sdamienstatic void rt2661_free_rx_ring(struct rt2661_softc *, 102156321Sdamien struct rt2661_rx_ring *); 103178354Ssamstatic void rt2661_newassoc(struct ieee80211_node *, int); 104178354Ssamstatic int rt2661_newstate(struct ieee80211vap *, 105156321Sdamien enum ieee80211_state, int); 106156321Sdamienstatic uint16_t rt2661_eeprom_read(struct rt2661_softc *, uint8_t); 107156321Sdamienstatic void rt2661_rx_intr(struct rt2661_softc *); 108156321Sdamienstatic void rt2661_tx_intr(struct rt2661_softc *); 109156321Sdamienstatic void rt2661_tx_dma_intr(struct rt2661_softc *, 110156321Sdamien struct rt2661_tx_ring *); 111156321Sdamienstatic void rt2661_mcu_beacon_expire(struct rt2661_softc *); 112156321Sdamienstatic void rt2661_mcu_wakeup(struct rt2661_softc *); 113156321Sdamienstatic void rt2661_mcu_cmd_intr(struct rt2661_softc *); 114170530Ssamstatic void rt2661_scan_start(struct ieee80211com *); 115170530Ssamstatic void rt2661_scan_end(struct ieee80211com *); 116170530Ssamstatic void rt2661_set_channel(struct ieee80211com *); 117156321Sdamienstatic void rt2661_setup_tx_desc(struct rt2661_softc *, 118156321Sdamien struct rt2661_tx_desc *, uint32_t, uint16_t, int, 119156321Sdamien int, const bus_dma_segment_t *, int, int); 120156321Sdamienstatic int rt2661_tx_data(struct rt2661_softc *, struct mbuf *, 121156321Sdamien struct ieee80211_node *, int); 122156321Sdamienstatic int rt2661_tx_mgt(struct rt2661_softc *, struct mbuf *, 123156321Sdamien struct ieee80211_node *); 124178354Ssamstatic void rt2661_start_locked(struct ifnet *); 125156321Sdamienstatic void rt2661_start(struct ifnet *); 126178354Ssamstatic int rt2661_raw_xmit(struct ieee80211_node *, struct mbuf *, 127178354Ssam const struct ieee80211_bpf_params *); 128165352Sbmsstatic void rt2661_watchdog(void *); 129156321Sdamienstatic int rt2661_ioctl(struct ifnet *, u_long, caddr_t); 130156321Sdamienstatic void rt2661_bbp_write(struct rt2661_softc *, uint8_t, 131156321Sdamien uint8_t); 132156321Sdamienstatic uint8_t rt2661_bbp_read(struct rt2661_softc *, uint8_t); 133156321Sdamienstatic void rt2661_rf_write(struct rt2661_softc *, uint8_t, 134156321Sdamien uint32_t); 135156321Sdamienstatic int rt2661_tx_cmd(struct rt2661_softc *, uint8_t, 136156321Sdamien uint16_t); 137156321Sdamienstatic void rt2661_select_antenna(struct rt2661_softc *); 138156321Sdamienstatic void rt2661_enable_mrr(struct rt2661_softc *); 139156321Sdamienstatic void rt2661_set_txpreamble(struct rt2661_softc *); 140156321Sdamienstatic void rt2661_set_basicrates(struct rt2661_softc *, 141156321Sdamien const struct ieee80211_rateset *); 142156321Sdamienstatic void rt2661_select_band(struct rt2661_softc *, 143156321Sdamien struct ieee80211_channel *); 144156321Sdamienstatic void rt2661_set_chan(struct rt2661_softc *, 145156321Sdamien struct ieee80211_channel *); 146156321Sdamienstatic void rt2661_set_bssid(struct rt2661_softc *, 147156321Sdamien const uint8_t *); 148156321Sdamienstatic void rt2661_set_macaddr(struct rt2661_softc *, 149156321Sdamien const uint8_t *); 150178354Ssamstatic void rt2661_update_promisc(struct ifnet *); 151156321Sdamienstatic int rt2661_wme_update(struct ieee80211com *) __unused; 152156321Sdamienstatic void rt2661_update_slot(struct ifnet *); 153156321Sdamienstatic const char *rt2661_get_rf(int); 154178354Ssamstatic void rt2661_read_eeprom(struct rt2661_softc *, 155190526Ssam uint8_t macaddr[IEEE80211_ADDR_LEN]); 156156321Sdamienstatic int rt2661_bbp_init(struct rt2661_softc *); 157178354Ssamstatic void rt2661_init_locked(struct rt2661_softc *); 158156321Sdamienstatic void rt2661_init(void *); 159178354Ssamstatic void rt2661_stop_locked(struct rt2661_softc *); 160156321Sdamienstatic void rt2661_stop(void *); 161178354Ssamstatic int rt2661_load_microcode(struct rt2661_softc *); 162156321Sdamien#ifdef notyet 163156321Sdamienstatic void rt2661_rx_tune(struct rt2661_softc *); 164156321Sdamienstatic void rt2661_radar_start(struct rt2661_softc *); 165156321Sdamienstatic int rt2661_radar_stop(struct rt2661_softc *); 166156321Sdamien#endif 167178354Ssamstatic int rt2661_prepare_beacon(struct rt2661_softc *, 168178354Ssam struct ieee80211vap *); 169156321Sdamienstatic void rt2661_enable_tsf_sync(struct rt2661_softc *); 170192468Ssamstatic void rt2661_enable_tsf(struct rt2661_softc *); 171156321Sdamienstatic int rt2661_get_rssi(struct rt2661_softc *, uint8_t); 172156321Sdamien 173156321Sdamienstatic const struct { 174156321Sdamien uint32_t reg; 175156321Sdamien uint32_t val; 176156321Sdamien} rt2661_def_mac[] = { 177156321Sdamien RT2661_DEF_MAC 178156321Sdamien}; 179156321Sdamien 180156321Sdamienstatic const struct { 181156321Sdamien uint8_t reg; 182156321Sdamien uint8_t val; 183156321Sdamien} rt2661_def_bbp[] = { 184156321Sdamien RT2661_DEF_BBP 185156321Sdamien}; 186156321Sdamien 187156321Sdamienstatic const struct rfprog { 188156321Sdamien uint8_t chan; 189156321Sdamien uint32_t r1, r2, r3, r4; 190156321Sdamien} rt2661_rf5225_1[] = { 191156321Sdamien RT2661_RF5225_1 192156321Sdamien}, rt2661_rf5225_2[] = { 193156321Sdamien RT2661_RF5225_2 194156321Sdamien}; 195156321Sdamien 196156321Sdamienint 197156321Sdamienrt2661_attach(device_t dev, int id) 198156321Sdamien{ 199156321Sdamien struct rt2661_softc *sc = device_get_softc(dev); 200178354Ssam struct ieee80211com *ic; 201156321Sdamien struct ifnet *ifp; 202156321Sdamien uint32_t val; 203178354Ssam int error, ac, ntries; 204178354Ssam uint8_t bands; 205190526Ssam uint8_t macaddr[IEEE80211_ADDR_LEN]; 206156321Sdamien 207178354Ssam sc->sc_id = id; 208156321Sdamien sc->sc_dev = dev; 209156321Sdamien 210178354Ssam ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 211178354Ssam if (ifp == NULL) { 212178354Ssam device_printf(sc->sc_dev, "can not if_alloc()\n"); 213178354Ssam return ENOMEM; 214178354Ssam } 215178354Ssam ic = ifp->if_l2com; 216178354Ssam 217156321Sdamien mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 218156321Sdamien MTX_DEF | MTX_RECURSE); 219156321Sdamien 220165352Sbms callout_init_mtx(&sc->watchdog_ch, &sc->sc_mtx, 0); 221156321Sdamien 222156321Sdamien /* wait for NIC to initialize */ 223156321Sdamien for (ntries = 0; ntries < 1000; ntries++) { 224156321Sdamien if ((val = RAL_READ(sc, RT2661_MAC_CSR0)) != 0) 225156321Sdamien break; 226156321Sdamien DELAY(1000); 227156321Sdamien } 228156321Sdamien if (ntries == 1000) { 229156321Sdamien device_printf(sc->sc_dev, 230156321Sdamien "timeout waiting for NIC to initialize\n"); 231156321Sdamien error = EIO; 232156321Sdamien goto fail1; 233156321Sdamien } 234156321Sdamien 235156321Sdamien /* retrieve RF rev. no and various other things from EEPROM */ 236190526Ssam rt2661_read_eeprom(sc, macaddr); 237156321Sdamien 238156321Sdamien device_printf(dev, "MAC/BBP RT%X, RF %s\n", val, 239156321Sdamien rt2661_get_rf(sc->rf_rev)); 240156321Sdamien 241156321Sdamien /* 242156321Sdamien * Allocate Tx and Rx rings. 243156321Sdamien */ 244156321Sdamien for (ac = 0; ac < 4; ac++) { 245156321Sdamien error = rt2661_alloc_tx_ring(sc, &sc->txq[ac], 246156321Sdamien RT2661_TX_RING_COUNT); 247156321Sdamien if (error != 0) { 248156321Sdamien device_printf(sc->sc_dev, 249156321Sdamien "could not allocate Tx ring %d\n", ac); 250156321Sdamien goto fail2; 251156321Sdamien } 252156321Sdamien } 253156321Sdamien 254156321Sdamien error = rt2661_alloc_tx_ring(sc, &sc->mgtq, RT2661_MGT_RING_COUNT); 255156321Sdamien if (error != 0) { 256156321Sdamien device_printf(sc->sc_dev, "could not allocate Mgt ring\n"); 257156321Sdamien goto fail2; 258156321Sdamien } 259156321Sdamien 260156321Sdamien error = rt2661_alloc_rx_ring(sc, &sc->rxq, RT2661_RX_RING_COUNT); 261156321Sdamien if (error != 0) { 262156321Sdamien device_printf(sc->sc_dev, "could not allocate Rx ring\n"); 263156321Sdamien goto fail3; 264156321Sdamien } 265156321Sdamien 266156321Sdamien ifp->if_softc = sc; 267156321Sdamien if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 268156321Sdamien ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 269156321Sdamien ifp->if_init = rt2661_init; 270156321Sdamien ifp->if_ioctl = rt2661_ioctl; 271156321Sdamien ifp->if_start = rt2661_start; 272156321Sdamien IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 273156321Sdamien ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 274156321Sdamien IFQ_SET_READY(&ifp->if_snd); 275156321Sdamien 276156321Sdamien ic->ic_ifp = ifp; 277178354Ssam ic->ic_opmode = IEEE80211_M_STA; 278156321Sdamien ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 279156321Sdamien 280156321Sdamien /* set device capabilities */ 281156321Sdamien ic->ic_caps = 282178957Ssam IEEE80211_C_STA /* station mode */ 283178957Ssam | IEEE80211_C_IBSS /* ibss, nee adhoc, mode */ 284178354Ssam | IEEE80211_C_HOSTAP /* hostap mode */ 285178354Ssam | IEEE80211_C_MONITOR /* monitor mode */ 286178354Ssam | IEEE80211_C_AHDEMO /* adhoc demo mode */ 287178354Ssam | IEEE80211_C_WDS /* 4-address traffic works */ 288195618Srpaulo | IEEE80211_C_MBSS /* mesh point link mode */ 289178354Ssam | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 290178354Ssam | IEEE80211_C_SHSLOT /* short slot time supported */ 291178354Ssam | IEEE80211_C_WPA /* capable of WPA1+WPA2 */ 292178354Ssam | IEEE80211_C_BGSCAN /* capable of bg scanning */ 293156407Sdamien#ifdef notyet 294178354Ssam | IEEE80211_C_TXFRAG /* handle tx frags */ 295178354Ssam | IEEE80211_C_WME /* 802.11e */ 296156407Sdamien#endif 297178354Ssam ; 298156321Sdamien 299170530Ssam bands = 0; 300170530Ssam setbit(&bands, IEEE80211_MODE_11B); 301170530Ssam setbit(&bands, IEEE80211_MODE_11G); 302170530Ssam if (sc->rf_rev == RT2661_RF_5225 || sc->rf_rev == RT2661_RF_5325) 303170530Ssam setbit(&bands, IEEE80211_MODE_11A); 304178354Ssam ieee80211_init_channels(ic, NULL, &bands); 305156321Sdamien 306190526Ssam ieee80211_ifattach(ic, macaddr); 307178354Ssam ic->ic_newassoc = rt2661_newassoc; 308178354Ssam#if 0 309178354Ssam ic->ic_wme.wme_update = rt2661_wme_update; 310178354Ssam#endif 311170530Ssam ic->ic_scan_start = rt2661_scan_start; 312170530Ssam ic->ic_scan_end = rt2661_scan_end; 313170530Ssam ic->ic_set_channel = rt2661_set_channel; 314156321Sdamien ic->ic_updateslot = rt2661_update_slot; 315178354Ssam ic->ic_update_promisc = rt2661_update_promisc; 316178354Ssam ic->ic_raw_xmit = rt2661_raw_xmit; 317156321Sdamien 318178354Ssam ic->ic_vap_create = rt2661_vap_create; 319178354Ssam ic->ic_vap_delete = rt2661_vap_delete; 320156321Sdamien 321192468Ssam ieee80211_radiotap_attach(ic, 322192468Ssam &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 323192468Ssam RT2661_TX_RADIOTAP_PRESENT, 324192468Ssam &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 325192468Ssam RT2661_RX_RADIOTAP_PRESENT); 326178354Ssam 327178354Ssam#ifdef RAL_DEBUG 328156321Sdamien SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 329178354Ssam SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, 330178354Ssam "debug", CTLFLAG_RW, &sc->sc_debug, 0, "debug msgs"); 331178354Ssam#endif 332156321Sdamien if (bootverbose) 333156321Sdamien ieee80211_announce(ic); 334156321Sdamien 335156321Sdamien return 0; 336156321Sdamien 337156321Sdamienfail3: rt2661_free_tx_ring(sc, &sc->mgtq); 338156321Sdamienfail2: while (--ac >= 0) 339156321Sdamien rt2661_free_tx_ring(sc, &sc->txq[ac]); 340156321Sdamienfail1: mtx_destroy(&sc->sc_mtx); 341178354Ssam if_free(ifp); 342156321Sdamien return error; 343156321Sdamien} 344156321Sdamien 345156321Sdamienint 346156321Sdamienrt2661_detach(void *xsc) 347156321Sdamien{ 348156321Sdamien struct rt2661_softc *sc = xsc; 349178354Ssam struct ifnet *ifp = sc->sc_ifp; 350178354Ssam struct ieee80211com *ic = ifp->if_l2com; 351170530Ssam 352178038Ssam RAL_LOCK(sc); 353178038Ssam rt2661_stop_locked(sc); 354178038Ssam RAL_UNLOCK(sc); 355156321Sdamien 356156321Sdamien ieee80211_ifdetach(ic); 357156321Sdamien 358156321Sdamien rt2661_free_tx_ring(sc, &sc->txq[0]); 359156321Sdamien rt2661_free_tx_ring(sc, &sc->txq[1]); 360156321Sdamien rt2661_free_tx_ring(sc, &sc->txq[2]); 361156321Sdamien rt2661_free_tx_ring(sc, &sc->txq[3]); 362156321Sdamien rt2661_free_tx_ring(sc, &sc->mgtq); 363156321Sdamien rt2661_free_rx_ring(sc, &sc->rxq); 364156321Sdamien 365156321Sdamien if_free(ifp); 366156321Sdamien 367156321Sdamien mtx_destroy(&sc->sc_mtx); 368156321Sdamien 369156321Sdamien return 0; 370156321Sdamien} 371156321Sdamien 372178354Ssamstatic struct ieee80211vap * 373178354Ssamrt2661_vap_create(struct ieee80211com *ic, 374178354Ssam const char name[IFNAMSIZ], int unit, int opmode, int flags, 375178354Ssam const uint8_t bssid[IEEE80211_ADDR_LEN], 376178354Ssam const uint8_t mac[IEEE80211_ADDR_LEN]) 377178354Ssam{ 378178354Ssam struct ifnet *ifp = ic->ic_ifp; 379178354Ssam struct rt2661_vap *rvp; 380178354Ssam struct ieee80211vap *vap; 381178354Ssam 382178354Ssam switch (opmode) { 383178354Ssam case IEEE80211_M_STA: 384178354Ssam case IEEE80211_M_IBSS: 385178354Ssam case IEEE80211_M_AHDEMO: 386178354Ssam case IEEE80211_M_MONITOR: 387178354Ssam case IEEE80211_M_HOSTAP: 388195618Srpaulo case IEEE80211_M_MBSS: 389195618Srpaulo /* XXXRP: TBD */ 390178354Ssam if (!TAILQ_EMPTY(&ic->ic_vaps)) { 391178354Ssam if_printf(ifp, "only 1 vap supported\n"); 392178354Ssam return NULL; 393178354Ssam } 394178354Ssam if (opmode == IEEE80211_M_STA) 395178354Ssam flags |= IEEE80211_CLONE_NOBEACONS; 396178354Ssam break; 397178354Ssam case IEEE80211_M_WDS: 398178354Ssam if (TAILQ_EMPTY(&ic->ic_vaps) || 399178354Ssam ic->ic_opmode != IEEE80211_M_HOSTAP) { 400178354Ssam if_printf(ifp, "wds only supported in ap mode\n"); 401178354Ssam return NULL; 402178354Ssam } 403178354Ssam /* 404178354Ssam * Silently remove any request for a unique 405178354Ssam * bssid; WDS vap's always share the local 406178354Ssam * mac address. 407178354Ssam */ 408178354Ssam flags &= ~IEEE80211_CLONE_BSSID; 409178354Ssam break; 410178354Ssam default: 411178354Ssam if_printf(ifp, "unknown opmode %d\n", opmode); 412178354Ssam return NULL; 413178354Ssam } 414178354Ssam rvp = (struct rt2661_vap *) malloc(sizeof(struct rt2661_vap), 415178354Ssam M_80211_VAP, M_NOWAIT | M_ZERO); 416178354Ssam if (rvp == NULL) 417178354Ssam return NULL; 418178354Ssam vap = &rvp->ral_vap; 419178354Ssam ieee80211_vap_setup(ic, vap, name, unit, opmode, flags, bssid, mac); 420178354Ssam 421178354Ssam /* override state transition machine */ 422178354Ssam rvp->ral_newstate = vap->iv_newstate; 423178354Ssam vap->iv_newstate = rt2661_newstate; 424178354Ssam#if 0 425178354Ssam vap->iv_update_beacon = rt2661_beacon_update; 426178354Ssam#endif 427178354Ssam 428206358Srpaulo ieee80211_ratectl_init(vap); 429178354Ssam /* complete setup */ 430178354Ssam ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 431178354Ssam if (TAILQ_FIRST(&ic->ic_vaps) == vap) 432178354Ssam ic->ic_opmode = opmode; 433178354Ssam return vap; 434178354Ssam} 435178354Ssam 436178354Ssamstatic void 437178354Ssamrt2661_vap_delete(struct ieee80211vap *vap) 438178354Ssam{ 439178354Ssam struct rt2661_vap *rvp = RT2661_VAP(vap); 440178354Ssam 441206358Srpaulo ieee80211_ratectl_deinit(vap); 442178354Ssam ieee80211_vap_detach(vap); 443178354Ssam free(rvp, M_80211_VAP); 444178354Ssam} 445178354Ssam 446156321Sdamienvoid 447156321Sdamienrt2661_shutdown(void *xsc) 448156321Sdamien{ 449156321Sdamien struct rt2661_softc *sc = xsc; 450156321Sdamien 451156321Sdamien rt2661_stop(sc); 452156321Sdamien} 453156321Sdamien 454156321Sdamienvoid 455156321Sdamienrt2661_suspend(void *xsc) 456156321Sdamien{ 457156321Sdamien struct rt2661_softc *sc = xsc; 458156321Sdamien 459156321Sdamien rt2661_stop(sc); 460156321Sdamien} 461156321Sdamien 462156321Sdamienvoid 463156321Sdamienrt2661_resume(void *xsc) 464156321Sdamien{ 465156321Sdamien struct rt2661_softc *sc = xsc; 466178354Ssam struct ifnet *ifp = sc->sc_ifp; 467156321Sdamien 468178354Ssam if (ifp->if_flags & IFF_UP) 469178354Ssam rt2661_init(sc); 470156321Sdamien} 471156321Sdamien 472156321Sdamienstatic void 473156321Sdamienrt2661_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 474156321Sdamien{ 475156321Sdamien if (error != 0) 476156321Sdamien return; 477156321Sdamien 478156321Sdamien KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 479156321Sdamien 480156321Sdamien *(bus_addr_t *)arg = segs[0].ds_addr; 481156321Sdamien} 482156321Sdamien 483156321Sdamienstatic int 484156321Sdamienrt2661_alloc_tx_ring(struct rt2661_softc *sc, struct rt2661_tx_ring *ring, 485156321Sdamien int count) 486156321Sdamien{ 487156321Sdamien int i, error; 488156321Sdamien 489156321Sdamien ring->count = count; 490156321Sdamien ring->queued = 0; 491156321Sdamien ring->cur = ring->next = ring->stat = 0; 492156321Sdamien 493171535Skevlo error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 494171535Skevlo BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 495171535Skevlo count * RT2661_TX_DESC_SIZE, 1, count * RT2661_TX_DESC_SIZE, 496171535Skevlo 0, NULL, NULL, &ring->desc_dmat); 497156321Sdamien if (error != 0) { 498156321Sdamien device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 499156321Sdamien goto fail; 500156321Sdamien } 501156321Sdamien 502156321Sdamien error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 503156321Sdamien BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 504156321Sdamien if (error != 0) { 505156321Sdamien device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 506156321Sdamien goto fail; 507156321Sdamien } 508156321Sdamien 509156321Sdamien error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 510156321Sdamien count * RT2661_TX_DESC_SIZE, rt2661_dma_map_addr, &ring->physaddr, 511156321Sdamien 0); 512156321Sdamien if (error != 0) { 513156321Sdamien device_printf(sc->sc_dev, "could not load desc DMA map\n"); 514156321Sdamien goto fail; 515156321Sdamien } 516156321Sdamien 517156321Sdamien ring->data = malloc(count * sizeof (struct rt2661_tx_data), M_DEVBUF, 518156321Sdamien M_NOWAIT | M_ZERO); 519156321Sdamien if (ring->data == NULL) { 520156321Sdamien device_printf(sc->sc_dev, "could not allocate soft data\n"); 521156321Sdamien error = ENOMEM; 522156321Sdamien goto fail; 523156321Sdamien } 524156321Sdamien 525171535Skevlo error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 526171535Skevlo BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 527171535Skevlo RT2661_MAX_SCATTER, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 528156321Sdamien if (error != 0) { 529156321Sdamien device_printf(sc->sc_dev, "could not create data DMA tag\n"); 530156321Sdamien goto fail; 531156321Sdamien } 532156321Sdamien 533156321Sdamien for (i = 0; i < count; i++) { 534156321Sdamien error = bus_dmamap_create(ring->data_dmat, 0, 535156321Sdamien &ring->data[i].map); 536156321Sdamien if (error != 0) { 537156321Sdamien device_printf(sc->sc_dev, "could not create DMA map\n"); 538156321Sdamien goto fail; 539156321Sdamien } 540156321Sdamien } 541156321Sdamien 542156321Sdamien return 0; 543156321Sdamien 544156321Sdamienfail: rt2661_free_tx_ring(sc, ring); 545156321Sdamien return error; 546156321Sdamien} 547156321Sdamien 548156321Sdamienstatic void 549156321Sdamienrt2661_reset_tx_ring(struct rt2661_softc *sc, struct rt2661_tx_ring *ring) 550156321Sdamien{ 551156321Sdamien struct rt2661_tx_desc *desc; 552156321Sdamien struct rt2661_tx_data *data; 553156321Sdamien int i; 554156321Sdamien 555156321Sdamien for (i = 0; i < ring->count; i++) { 556156321Sdamien desc = &ring->desc[i]; 557156321Sdamien data = &ring->data[i]; 558156321Sdamien 559156321Sdamien if (data->m != NULL) { 560156321Sdamien bus_dmamap_sync(ring->data_dmat, data->map, 561156321Sdamien BUS_DMASYNC_POSTWRITE); 562156321Sdamien bus_dmamap_unload(ring->data_dmat, data->map); 563156321Sdamien m_freem(data->m); 564156321Sdamien data->m = NULL; 565156321Sdamien } 566156321Sdamien 567156321Sdamien if (data->ni != NULL) { 568156321Sdamien ieee80211_free_node(data->ni); 569156321Sdamien data->ni = NULL; 570156321Sdamien } 571156321Sdamien 572156321Sdamien desc->flags = 0; 573156321Sdamien } 574156321Sdamien 575156321Sdamien bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE); 576156321Sdamien 577156321Sdamien ring->queued = 0; 578156321Sdamien ring->cur = ring->next = ring->stat = 0; 579156321Sdamien} 580156321Sdamien 581156321Sdamienstatic void 582156321Sdamienrt2661_free_tx_ring(struct rt2661_softc *sc, struct rt2661_tx_ring *ring) 583156321Sdamien{ 584156321Sdamien struct rt2661_tx_data *data; 585156321Sdamien int i; 586156321Sdamien 587156321Sdamien if (ring->desc != NULL) { 588156321Sdamien bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 589156321Sdamien BUS_DMASYNC_POSTWRITE); 590156321Sdamien bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 591156321Sdamien bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 592156321Sdamien } 593156321Sdamien 594156321Sdamien if (ring->desc_dmat != NULL) 595156321Sdamien bus_dma_tag_destroy(ring->desc_dmat); 596156321Sdamien 597156321Sdamien if (ring->data != NULL) { 598156321Sdamien for (i = 0; i < ring->count; i++) { 599156321Sdamien data = &ring->data[i]; 600156321Sdamien 601156321Sdamien if (data->m != NULL) { 602156321Sdamien bus_dmamap_sync(ring->data_dmat, data->map, 603156321Sdamien BUS_DMASYNC_POSTWRITE); 604156321Sdamien bus_dmamap_unload(ring->data_dmat, data->map); 605156321Sdamien m_freem(data->m); 606156321Sdamien } 607156321Sdamien 608156321Sdamien if (data->ni != NULL) 609156321Sdamien ieee80211_free_node(data->ni); 610156321Sdamien 611156321Sdamien if (data->map != NULL) 612156321Sdamien bus_dmamap_destroy(ring->data_dmat, data->map); 613156321Sdamien } 614156321Sdamien 615156321Sdamien free(ring->data, M_DEVBUF); 616156321Sdamien } 617156321Sdamien 618156321Sdamien if (ring->data_dmat != NULL) 619156321Sdamien bus_dma_tag_destroy(ring->data_dmat); 620156321Sdamien} 621156321Sdamien 622156321Sdamienstatic int 623156321Sdamienrt2661_alloc_rx_ring(struct rt2661_softc *sc, struct rt2661_rx_ring *ring, 624156321Sdamien int count) 625156321Sdamien{ 626156321Sdamien struct rt2661_rx_desc *desc; 627156321Sdamien struct rt2661_rx_data *data; 628156321Sdamien bus_addr_t physaddr; 629156321Sdamien int i, error; 630156321Sdamien 631156321Sdamien ring->count = count; 632156321Sdamien ring->cur = ring->next = 0; 633156321Sdamien 634171535Skevlo error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 4, 0, 635171535Skevlo BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 636171535Skevlo count * RT2661_RX_DESC_SIZE, 1, count * RT2661_RX_DESC_SIZE, 637171535Skevlo 0, NULL, NULL, &ring->desc_dmat); 638156321Sdamien if (error != 0) { 639156321Sdamien device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 640156321Sdamien goto fail; 641156321Sdamien } 642156321Sdamien 643156321Sdamien error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 644156321Sdamien BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 645156321Sdamien if (error != 0) { 646156321Sdamien device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 647156321Sdamien goto fail; 648156321Sdamien } 649156321Sdamien 650156321Sdamien error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 651156321Sdamien count * RT2661_RX_DESC_SIZE, rt2661_dma_map_addr, &ring->physaddr, 652156321Sdamien 0); 653156321Sdamien if (error != 0) { 654156321Sdamien device_printf(sc->sc_dev, "could not load desc DMA map\n"); 655156321Sdamien goto fail; 656156321Sdamien } 657156321Sdamien 658156321Sdamien ring->data = malloc(count * sizeof (struct rt2661_rx_data), M_DEVBUF, 659156321Sdamien M_NOWAIT | M_ZERO); 660156321Sdamien if (ring->data == NULL) { 661156321Sdamien device_printf(sc->sc_dev, "could not allocate soft data\n"); 662156321Sdamien error = ENOMEM; 663156321Sdamien goto fail; 664156321Sdamien } 665156321Sdamien 666156321Sdamien /* 667156321Sdamien * Pre-allocate Rx buffers and populate Rx ring. 668156321Sdamien */ 669171535Skevlo error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0, 670171535Skevlo BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 671171535Skevlo 1, MCLBYTES, 0, NULL, NULL, &ring->data_dmat); 672156321Sdamien if (error != 0) { 673156321Sdamien device_printf(sc->sc_dev, "could not create data DMA tag\n"); 674156321Sdamien goto fail; 675156321Sdamien } 676156321Sdamien 677156321Sdamien for (i = 0; i < count; i++) { 678156321Sdamien desc = &sc->rxq.desc[i]; 679156321Sdamien data = &sc->rxq.data[i]; 680156321Sdamien 681156321Sdamien error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 682156321Sdamien if (error != 0) { 683156321Sdamien device_printf(sc->sc_dev, "could not create DMA map\n"); 684156321Sdamien goto fail; 685156321Sdamien } 686156321Sdamien 687156321Sdamien data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 688156321Sdamien if (data->m == NULL) { 689156321Sdamien device_printf(sc->sc_dev, 690156321Sdamien "could not allocate rx mbuf\n"); 691156321Sdamien error = ENOMEM; 692156321Sdamien goto fail; 693156321Sdamien } 694156321Sdamien 695156321Sdamien error = bus_dmamap_load(ring->data_dmat, data->map, 696156321Sdamien mtod(data->m, void *), MCLBYTES, rt2661_dma_map_addr, 697156321Sdamien &physaddr, 0); 698156321Sdamien if (error != 0) { 699156321Sdamien device_printf(sc->sc_dev, 700156321Sdamien "could not load rx buf DMA map"); 701156321Sdamien goto fail; 702156321Sdamien } 703156321Sdamien 704156321Sdamien desc->flags = htole32(RT2661_RX_BUSY); 705156321Sdamien desc->physaddr = htole32(physaddr); 706156321Sdamien } 707156321Sdamien 708156321Sdamien bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE); 709156321Sdamien 710156321Sdamien return 0; 711156321Sdamien 712156321Sdamienfail: rt2661_free_rx_ring(sc, ring); 713156321Sdamien return error; 714156321Sdamien} 715156321Sdamien 716156321Sdamienstatic void 717156321Sdamienrt2661_reset_rx_ring(struct rt2661_softc *sc, struct rt2661_rx_ring *ring) 718156321Sdamien{ 719156321Sdamien int i; 720156321Sdamien 721156321Sdamien for (i = 0; i < ring->count; i++) 722156321Sdamien ring->desc[i].flags = htole32(RT2661_RX_BUSY); 723156321Sdamien 724156321Sdamien bus_dmamap_sync(ring->desc_dmat, ring->desc_map, BUS_DMASYNC_PREWRITE); 725156321Sdamien 726156321Sdamien ring->cur = ring->next = 0; 727156321Sdamien} 728156321Sdamien 729156321Sdamienstatic void 730156321Sdamienrt2661_free_rx_ring(struct rt2661_softc *sc, struct rt2661_rx_ring *ring) 731156321Sdamien{ 732156321Sdamien struct rt2661_rx_data *data; 733156321Sdamien int i; 734156321Sdamien 735156321Sdamien if (ring->desc != NULL) { 736156321Sdamien bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 737156321Sdamien BUS_DMASYNC_POSTWRITE); 738156321Sdamien bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 739156321Sdamien bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 740156321Sdamien } 741156321Sdamien 742156321Sdamien if (ring->desc_dmat != NULL) 743156321Sdamien bus_dma_tag_destroy(ring->desc_dmat); 744156321Sdamien 745156321Sdamien if (ring->data != NULL) { 746156321Sdamien for (i = 0; i < ring->count; i++) { 747156321Sdamien data = &ring->data[i]; 748156321Sdamien 749156321Sdamien if (data->m != NULL) { 750156321Sdamien bus_dmamap_sync(ring->data_dmat, data->map, 751156321Sdamien BUS_DMASYNC_POSTREAD); 752156321Sdamien bus_dmamap_unload(ring->data_dmat, data->map); 753156321Sdamien m_freem(data->m); 754156321Sdamien } 755156321Sdamien 756156321Sdamien if (data->map != NULL) 757156321Sdamien bus_dmamap_destroy(ring->data_dmat, data->map); 758156321Sdamien } 759156321Sdamien 760156321Sdamien free(ring->data, M_DEVBUF); 761156321Sdamien } 762156321Sdamien 763156321Sdamien if (ring->data_dmat != NULL) 764156321Sdamien bus_dma_tag_destroy(ring->data_dmat); 765156321Sdamien} 766156321Sdamien 767156321Sdamienstatic void 768178354Ssamrt2661_newassoc(struct ieee80211_node *ni, int isnew) 769156321Sdamien{ 770206358Srpaulo /* XXX move */ 771206358Srpaulo ieee80211_ratectl_node_init(ni); 772156321Sdamien} 773156321Sdamien 774156321Sdamienstatic int 775178354Ssamrt2661_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 776156321Sdamien{ 777178354Ssam struct rt2661_vap *rvp = RT2661_VAP(vap); 778178354Ssam struct ieee80211com *ic = vap->iv_ic; 779156321Sdamien struct rt2661_softc *sc = ic->ic_ifp->if_softc; 780178354Ssam int error; 781156321Sdamien 782178354Ssam if (nstate == IEEE80211_S_INIT && vap->iv_state == IEEE80211_S_RUN) { 783178354Ssam uint32_t tmp; 784156321Sdamien 785178354Ssam /* abort TSF synchronization */ 786178354Ssam tmp = RAL_READ(sc, RT2661_TXRX_CSR9); 787178354Ssam RAL_WRITE(sc, RT2661_TXRX_CSR9, tmp & ~0x00ffffff); 788178354Ssam } 789156321Sdamien 790178354Ssam error = rvp->ral_newstate(vap, nstate, arg); 791156321Sdamien 792178354Ssam if (error == 0 && nstate == IEEE80211_S_RUN) { 793178354Ssam struct ieee80211_node *ni = vap->iv_bss; 794178354Ssam 795178354Ssam if (vap->iv_opmode != IEEE80211_M_MONITOR) { 796156321Sdamien rt2661_enable_mrr(sc); 797156321Sdamien rt2661_set_txpreamble(sc); 798156321Sdamien rt2661_set_basicrates(sc, &ni->ni_rates); 799156321Sdamien rt2661_set_bssid(sc, ni->ni_bssid); 800156321Sdamien } 801156321Sdamien 802178354Ssam if (vap->iv_opmode == IEEE80211_M_HOSTAP || 803195618Srpaulo vap->iv_opmode == IEEE80211_M_IBSS || 804195618Srpaulo vap->iv_opmode == IEEE80211_M_MBSS) { 805178354Ssam error = rt2661_prepare_beacon(sc, vap); 806178354Ssam if (error != 0) 807178354Ssam return error; 808156321Sdamien } 809184345Ssam if (vap->iv_opmode != IEEE80211_M_MONITOR) 810156321Sdamien rt2661_enable_tsf_sync(sc); 811192468Ssam else 812192468Ssam rt2661_enable_tsf(sc); 813178354Ssam } 814178354Ssam return error; 815156321Sdamien} 816156321Sdamien 817156321Sdamien/* 818156321Sdamien * Read 16 bits at address 'addr' from the serial EEPROM (either 93C46 or 819156321Sdamien * 93C66). 820156321Sdamien */ 821156321Sdamienstatic uint16_t 822156321Sdamienrt2661_eeprom_read(struct rt2661_softc *sc, uint8_t addr) 823156321Sdamien{ 824156321Sdamien uint32_t tmp; 825156321Sdamien uint16_t val; 826156321Sdamien int n; 827156321Sdamien 828156321Sdamien /* clock C once before the first command */ 829156321Sdamien RT2661_EEPROM_CTL(sc, 0); 830156321Sdamien 831156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S); 832156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_C); 833156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S); 834156321Sdamien 835156321Sdamien /* write start bit (1) */ 836156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_D); 837156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_D | RT2661_C); 838156321Sdamien 839156321Sdamien /* write READ opcode (10) */ 840156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_D); 841156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_D | RT2661_C); 842156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S); 843156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_C); 844156321Sdamien 845156321Sdamien /* write address (A5-A0 or A7-A0) */ 846156321Sdamien n = (RAL_READ(sc, RT2661_E2PROM_CSR) & RT2661_93C46) ? 5 : 7; 847156321Sdamien for (; n >= 0; n--) { 848156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S | 849156321Sdamien (((addr >> n) & 1) << RT2661_SHIFT_D)); 850156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S | 851156321Sdamien (((addr >> n) & 1) << RT2661_SHIFT_D) | RT2661_C); 852156321Sdamien } 853156321Sdamien 854156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S); 855156321Sdamien 856156321Sdamien /* read data Q15-Q0 */ 857156321Sdamien val = 0; 858156321Sdamien for (n = 15; n >= 0; n--) { 859156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S | RT2661_C); 860156321Sdamien tmp = RAL_READ(sc, RT2661_E2PROM_CSR); 861156321Sdamien val |= ((tmp & RT2661_Q) >> RT2661_SHIFT_Q) << n; 862156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S); 863156321Sdamien } 864156321Sdamien 865156321Sdamien RT2661_EEPROM_CTL(sc, 0); 866156321Sdamien 867156321Sdamien /* clear Chip Select and clock C */ 868156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_S); 869156321Sdamien RT2661_EEPROM_CTL(sc, 0); 870156321Sdamien RT2661_EEPROM_CTL(sc, RT2661_C); 871156321Sdamien 872156321Sdamien return val; 873156321Sdamien} 874156321Sdamien 875156321Sdamienstatic void 876156321Sdamienrt2661_tx_intr(struct rt2661_softc *sc) 877156321Sdamien{ 878178354Ssam struct ifnet *ifp = sc->sc_ifp; 879156321Sdamien struct rt2661_tx_ring *txq; 880156321Sdamien struct rt2661_tx_data *data; 881156321Sdamien uint32_t val; 882156321Sdamien int qid, retrycnt; 883206358Srpaulo struct ieee80211vap *vap; 884156321Sdamien 885156321Sdamien for (;;) { 886170530Ssam struct ieee80211_node *ni; 887170530Ssam struct mbuf *m; 888170530Ssam 889156321Sdamien val = RAL_READ(sc, RT2661_STA_CSR4); 890156321Sdamien if (!(val & RT2661_TX_STAT_VALID)) 891156321Sdamien break; 892156321Sdamien 893156321Sdamien /* retrieve the queue in which this frame was sent */ 894156321Sdamien qid = RT2661_TX_QID(val); 895156321Sdamien txq = (qid <= 3) ? &sc->txq[qid] : &sc->mgtq; 896156321Sdamien 897156321Sdamien /* retrieve rate control algorithm context */ 898156321Sdamien data = &txq->data[txq->stat]; 899170530Ssam m = data->m; 900170530Ssam data->m = NULL; 901170530Ssam ni = data->ni; 902170530Ssam data->ni = NULL; 903156321Sdamien 904159301Sfjoe /* if no frame has been sent, ignore */ 905170530Ssam if (ni == NULL) 906159301Sfjoe continue; 907206371Srpaulo else 908206371Srpaulo vap = ni->ni_vap; 909159301Sfjoe 910156321Sdamien switch (RT2661_TX_RESULT(val)) { 911156321Sdamien case RT2661_TX_SUCCESS: 912156321Sdamien retrycnt = RT2661_TX_RETRYCNT(val); 913156321Sdamien 914178354Ssam DPRINTFN(sc, 10, "data frame sent successfully after " 915178354Ssam "%d retries\n", retrycnt); 916178354Ssam if (data->rix != IEEE80211_FIXED_RATE_NONE) 917206358Srpaulo ieee80211_ratectl_tx_complete(vap, ni, 918206358Srpaulo IEEE80211_RATECTL_TX_SUCCESS, 919206358Srpaulo &retrycnt, NULL); 920156321Sdamien ifp->if_opackets++; 921156321Sdamien break; 922156321Sdamien 923156321Sdamien case RT2661_TX_RETRY_FAIL: 924178354Ssam retrycnt = RT2661_TX_RETRYCNT(val); 925178354Ssam 926178354Ssam DPRINTFN(sc, 9, "%s\n", 927178354Ssam "sending data frame failed (too much retries)"); 928178354Ssam if (data->rix != IEEE80211_FIXED_RATE_NONE) 929206358Srpaulo ieee80211_ratectl_tx_complete(vap, ni, 930206358Srpaulo IEEE80211_RATECTL_TX_FAILURE, 931206358Srpaulo &retrycnt, NULL); 932156321Sdamien ifp->if_oerrors++; 933156321Sdamien break; 934156321Sdamien 935156321Sdamien default: 936156321Sdamien /* other failure */ 937156321Sdamien device_printf(sc->sc_dev, 938156321Sdamien "sending data frame failed 0x%08x\n", val); 939156321Sdamien ifp->if_oerrors++; 940156321Sdamien } 941156321Sdamien 942178354Ssam DPRINTFN(sc, 15, "tx done q=%d idx=%u\n", qid, txq->stat); 943156321Sdamien 944156321Sdamien txq->queued--; 945156321Sdamien if (++txq->stat >= txq->count) /* faster than % count */ 946156321Sdamien txq->stat = 0; 947170530Ssam 948170530Ssam if (m->m_flags & M_TXCB) 949170530Ssam ieee80211_process_callback(ni, m, 950170530Ssam RT2661_TX_RESULT(val) != RT2661_TX_SUCCESS); 951170530Ssam m_freem(m); 952170530Ssam ieee80211_free_node(ni); 953156321Sdamien } 954156321Sdamien 955156321Sdamien sc->sc_tx_timer = 0; 956156321Sdamien ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 957178354Ssam 958178354Ssam rt2661_start_locked(ifp); 959156321Sdamien} 960156321Sdamien 961156321Sdamienstatic void 962156321Sdamienrt2661_tx_dma_intr(struct rt2661_softc *sc, struct rt2661_tx_ring *txq) 963156321Sdamien{ 964156321Sdamien struct rt2661_tx_desc *desc; 965156321Sdamien struct rt2661_tx_data *data; 966156321Sdamien 967156321Sdamien bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_POSTREAD); 968156321Sdamien 969156321Sdamien for (;;) { 970156321Sdamien desc = &txq->desc[txq->next]; 971156321Sdamien data = &txq->data[txq->next]; 972156321Sdamien 973156321Sdamien if ((le32toh(desc->flags) & RT2661_TX_BUSY) || 974156321Sdamien !(le32toh(desc->flags) & RT2661_TX_VALID)) 975156321Sdamien break; 976156321Sdamien 977156321Sdamien bus_dmamap_sync(txq->data_dmat, data->map, 978156321Sdamien BUS_DMASYNC_POSTWRITE); 979156321Sdamien bus_dmamap_unload(txq->data_dmat, data->map); 980156321Sdamien 981156321Sdamien /* descriptor is no longer valid */ 982156321Sdamien desc->flags &= ~htole32(RT2661_TX_VALID); 983156321Sdamien 984178354Ssam DPRINTFN(sc, 15, "tx dma done q=%p idx=%u\n", txq, txq->next); 985156321Sdamien 986156321Sdamien if (++txq->next >= txq->count) /* faster than % count */ 987156321Sdamien txq->next = 0; 988156321Sdamien } 989156321Sdamien 990156321Sdamien bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE); 991156321Sdamien} 992156321Sdamien 993156321Sdamienstatic void 994156321Sdamienrt2661_rx_intr(struct rt2661_softc *sc) 995156321Sdamien{ 996178354Ssam struct ifnet *ifp = sc->sc_ifp; 997178354Ssam struct ieee80211com *ic = ifp->if_l2com; 998156321Sdamien struct rt2661_rx_desc *desc; 999156321Sdamien struct rt2661_rx_data *data; 1000156321Sdamien bus_addr_t physaddr; 1001156321Sdamien struct ieee80211_frame *wh; 1002156321Sdamien struct ieee80211_node *ni; 1003156321Sdamien struct mbuf *mnew, *m; 1004156321Sdamien int error; 1005156321Sdamien 1006156321Sdamien bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map, 1007156321Sdamien BUS_DMASYNC_POSTREAD); 1008156321Sdamien 1009156321Sdamien for (;;) { 1010192468Ssam int8_t rssi, nf; 1011170530Ssam 1012156321Sdamien desc = &sc->rxq.desc[sc->rxq.cur]; 1013156321Sdamien data = &sc->rxq.data[sc->rxq.cur]; 1014156321Sdamien 1015156321Sdamien if (le32toh(desc->flags) & RT2661_RX_BUSY) 1016156321Sdamien break; 1017156321Sdamien 1018156321Sdamien if ((le32toh(desc->flags) & RT2661_RX_PHY_ERROR) || 1019156321Sdamien (le32toh(desc->flags) & RT2661_RX_CRC_ERROR)) { 1020156321Sdamien /* 1021156321Sdamien * This should not happen since we did not request 1022156321Sdamien * to receive those frames when we filled TXRX_CSR0. 1023156321Sdamien */ 1024178354Ssam DPRINTFN(sc, 5, "PHY or CRC error flags 0x%08x\n", 1025178354Ssam le32toh(desc->flags)); 1026156321Sdamien ifp->if_ierrors++; 1027156321Sdamien goto skip; 1028156321Sdamien } 1029156321Sdamien 1030156321Sdamien if ((le32toh(desc->flags) & RT2661_RX_CIPHER_MASK) != 0) { 1031156321Sdamien ifp->if_ierrors++; 1032156321Sdamien goto skip; 1033156321Sdamien } 1034156321Sdamien 1035156321Sdamien /* 1036156321Sdamien * Try to allocate a new mbuf for this ring element and load it 1037156321Sdamien * before processing the current mbuf. If the ring element 1038156321Sdamien * cannot be loaded, drop the received packet and reuse the old 1039156321Sdamien * mbuf. In the unlikely case that the old mbuf can't be 1040156321Sdamien * reloaded either, explicitly panic. 1041156321Sdamien */ 1042156321Sdamien mnew = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 1043156321Sdamien if (mnew == NULL) { 1044156321Sdamien ifp->if_ierrors++; 1045156321Sdamien goto skip; 1046156321Sdamien } 1047156321Sdamien 1048156321Sdamien bus_dmamap_sync(sc->rxq.data_dmat, data->map, 1049156321Sdamien BUS_DMASYNC_POSTREAD); 1050156321Sdamien bus_dmamap_unload(sc->rxq.data_dmat, data->map); 1051156321Sdamien 1052156321Sdamien error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1053156321Sdamien mtod(mnew, void *), MCLBYTES, rt2661_dma_map_addr, 1054156321Sdamien &physaddr, 0); 1055156321Sdamien if (error != 0) { 1056156321Sdamien m_freem(mnew); 1057156321Sdamien 1058156321Sdamien /* try to reload the old mbuf */ 1059156321Sdamien error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1060156321Sdamien mtod(data->m, void *), MCLBYTES, 1061156321Sdamien rt2661_dma_map_addr, &physaddr, 0); 1062156321Sdamien if (error != 0) { 1063156321Sdamien /* very unlikely that it will fail... */ 1064156321Sdamien panic("%s: could not load old rx mbuf", 1065156321Sdamien device_get_name(sc->sc_dev)); 1066156321Sdamien } 1067156321Sdamien ifp->if_ierrors++; 1068156321Sdamien goto skip; 1069156321Sdamien } 1070156321Sdamien 1071156321Sdamien /* 1072156321Sdamien * New mbuf successfully loaded, update Rx ring and continue 1073156321Sdamien * processing. 1074156321Sdamien */ 1075156321Sdamien m = data->m; 1076156321Sdamien data->m = mnew; 1077156321Sdamien desc->physaddr = htole32(physaddr); 1078156321Sdamien 1079156321Sdamien /* finalize mbuf */ 1080156321Sdamien m->m_pkthdr.rcvif = ifp; 1081156321Sdamien m->m_pkthdr.len = m->m_len = 1082156321Sdamien (le32toh(desc->flags) >> 16) & 0xfff; 1083156321Sdamien 1084170530Ssam rssi = rt2661_get_rssi(sc, desc->rssi); 1085192468Ssam /* Error happened during RSSI conversion. */ 1086192468Ssam if (rssi < 0) 1087192468Ssam rssi = -30; /* XXX ignored by net80211 */ 1088192468Ssam nf = RT2661_NOISE_FLOOR; 1089170530Ssam 1090192468Ssam if (ieee80211_radiotap_active(ic)) { 1091156321Sdamien struct rt2661_rx_radiotap_header *tap = &sc->sc_rxtap; 1092156321Sdamien uint32_t tsf_lo, tsf_hi; 1093156321Sdamien 1094156321Sdamien /* get timestamp (low and high 32 bits) */ 1095156321Sdamien tsf_hi = RAL_READ(sc, RT2661_TXRX_CSR13); 1096156321Sdamien tsf_lo = RAL_READ(sc, RT2661_TXRX_CSR12); 1097156321Sdamien 1098156321Sdamien tap->wr_tsf = 1099156321Sdamien htole64(((uint64_t)tsf_hi << 32) | tsf_lo); 1100156321Sdamien tap->wr_flags = 0; 1101178354Ssam tap->wr_rate = ieee80211_plcp2rate(desc->rate, 1102178958Ssam (desc->flags & htole32(RT2661_RX_OFDM)) ? 1103178958Ssam IEEE80211_T_OFDM : IEEE80211_T_CCK); 1104192468Ssam tap->wr_antsignal = nf + rssi; 1105192468Ssam tap->wr_antnoise = nf; 1106156321Sdamien } 1107170530Ssam sc->sc_flags |= RAL_INPUT_RUNNING; 1108170530Ssam RAL_UNLOCK(sc); 1109156321Sdamien wh = mtod(m, struct ieee80211_frame *); 1110178354Ssam 1111178354Ssam /* send the frame to the 802.11 layer */ 1112156321Sdamien ni = ieee80211_find_rxnode(ic, 1113156321Sdamien (struct ieee80211_frame_min *)wh); 1114178354Ssam if (ni != NULL) { 1115192468Ssam (void) ieee80211_input(ni, m, rssi, nf); 1116178354Ssam ieee80211_free_node(ni); 1117178354Ssam } else 1118192468Ssam (void) ieee80211_input_all(ic, m, rssi, nf); 1119170530Ssam 1120170530Ssam RAL_LOCK(sc); 1121170530Ssam sc->sc_flags &= ~RAL_INPUT_RUNNING; 1122156321Sdamien 1123156321Sdamienskip: desc->flags |= htole32(RT2661_RX_BUSY); 1124156321Sdamien 1125178354Ssam DPRINTFN(sc, 15, "rx intr idx=%u\n", sc->rxq.cur); 1126156321Sdamien 1127156321Sdamien sc->rxq.cur = (sc->rxq.cur + 1) % RT2661_RX_RING_COUNT; 1128156321Sdamien } 1129156321Sdamien 1130156321Sdamien bus_dmamap_sync(sc->rxq.desc_dmat, sc->rxq.desc_map, 1131156321Sdamien BUS_DMASYNC_PREWRITE); 1132156321Sdamien} 1133156321Sdamien 1134156321Sdamien/* ARGSUSED */ 1135156321Sdamienstatic void 1136156321Sdamienrt2661_mcu_beacon_expire(struct rt2661_softc *sc) 1137156321Sdamien{ 1138156321Sdamien /* do nothing */ 1139156321Sdamien} 1140156321Sdamien 1141156321Sdamienstatic void 1142156321Sdamienrt2661_mcu_wakeup(struct rt2661_softc *sc) 1143156321Sdamien{ 1144156321Sdamien RAL_WRITE(sc, RT2661_MAC_CSR11, 5 << 16); 1145156321Sdamien 1146156321Sdamien RAL_WRITE(sc, RT2661_SOFT_RESET_CSR, 0x7); 1147156321Sdamien RAL_WRITE(sc, RT2661_IO_CNTL_CSR, 0x18); 1148156321Sdamien RAL_WRITE(sc, RT2661_PCI_USEC_CSR, 0x20); 1149156321Sdamien 1150156321Sdamien /* send wakeup command to MCU */ 1151156321Sdamien rt2661_tx_cmd(sc, RT2661_MCU_CMD_WAKEUP, 0); 1152156321Sdamien} 1153156321Sdamien 1154156321Sdamienstatic void 1155156321Sdamienrt2661_mcu_cmd_intr(struct rt2661_softc *sc) 1156156321Sdamien{ 1157156321Sdamien RAL_READ(sc, RT2661_M2H_CMD_DONE_CSR); 1158156321Sdamien RAL_WRITE(sc, RT2661_M2H_CMD_DONE_CSR, 0xffffffff); 1159156321Sdamien} 1160156321Sdamien 1161156321Sdamienvoid 1162156321Sdamienrt2661_intr(void *arg) 1163156321Sdamien{ 1164156321Sdamien struct rt2661_softc *sc = arg; 1165156975Sdamien struct ifnet *ifp = sc->sc_ifp; 1166156321Sdamien uint32_t r1, r2; 1167156321Sdamien 1168156321Sdamien RAL_LOCK(sc); 1169156321Sdamien 1170156321Sdamien /* disable MAC and MCU interrupts */ 1171156321Sdamien RAL_WRITE(sc, RT2661_INT_MASK_CSR, 0xffffff7f); 1172156321Sdamien RAL_WRITE(sc, RT2661_MCU_INT_MASK_CSR, 0xffffffff); 1173156321Sdamien 1174156975Sdamien /* don't re-enable interrupts if we're shutting down */ 1175156975Sdamien if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 1176156975Sdamien RAL_UNLOCK(sc); 1177156975Sdamien return; 1178156975Sdamien } 1179156975Sdamien 1180156321Sdamien r1 = RAL_READ(sc, RT2661_INT_SOURCE_CSR); 1181156321Sdamien RAL_WRITE(sc, RT2661_INT_SOURCE_CSR, r1); 1182156321Sdamien 1183156321Sdamien r2 = RAL_READ(sc, RT2661_MCU_INT_SOURCE_CSR); 1184156321Sdamien RAL_WRITE(sc, RT2661_MCU_INT_SOURCE_CSR, r2); 1185156321Sdamien 1186156321Sdamien if (r1 & RT2661_MGT_DONE) 1187156321Sdamien rt2661_tx_dma_intr(sc, &sc->mgtq); 1188156321Sdamien 1189156321Sdamien if (r1 & RT2661_RX_DONE) 1190156321Sdamien rt2661_rx_intr(sc); 1191156321Sdamien 1192156321Sdamien if (r1 & RT2661_TX0_DMA_DONE) 1193156321Sdamien rt2661_tx_dma_intr(sc, &sc->txq[0]); 1194156321Sdamien 1195156321Sdamien if (r1 & RT2661_TX1_DMA_DONE) 1196156321Sdamien rt2661_tx_dma_intr(sc, &sc->txq[1]); 1197156321Sdamien 1198156321Sdamien if (r1 & RT2661_TX2_DMA_DONE) 1199156321Sdamien rt2661_tx_dma_intr(sc, &sc->txq[2]); 1200156321Sdamien 1201156321Sdamien if (r1 & RT2661_TX3_DMA_DONE) 1202156321Sdamien rt2661_tx_dma_intr(sc, &sc->txq[3]); 1203156321Sdamien 1204156321Sdamien if (r1 & RT2661_TX_DONE) 1205156321Sdamien rt2661_tx_intr(sc); 1206156321Sdamien 1207156321Sdamien if (r2 & RT2661_MCU_CMD_DONE) 1208156321Sdamien rt2661_mcu_cmd_intr(sc); 1209156321Sdamien 1210156321Sdamien if (r2 & RT2661_MCU_BEACON_EXPIRE) 1211156321Sdamien rt2661_mcu_beacon_expire(sc); 1212156321Sdamien 1213156321Sdamien if (r2 & RT2661_MCU_WAKEUP) 1214156321Sdamien rt2661_mcu_wakeup(sc); 1215156321Sdamien 1216156321Sdamien /* re-enable MAC and MCU interrupts */ 1217156321Sdamien RAL_WRITE(sc, RT2661_INT_MASK_CSR, 0x0000ff10); 1218156321Sdamien RAL_WRITE(sc, RT2661_MCU_INT_MASK_CSR, 0); 1219156321Sdamien 1220156321Sdamien RAL_UNLOCK(sc); 1221156321Sdamien} 1222156321Sdamien 1223178958Ssamstatic uint8_t 1224178958Ssamrt2661_plcp_signal(int rate) 1225178958Ssam{ 1226178958Ssam switch (rate) { 1227178958Ssam /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1228178958Ssam case 12: return 0xb; 1229178958Ssam case 18: return 0xf; 1230178958Ssam case 24: return 0xa; 1231178958Ssam case 36: return 0xe; 1232178958Ssam case 48: return 0x9; 1233178958Ssam case 72: return 0xd; 1234178958Ssam case 96: return 0x8; 1235178958Ssam case 108: return 0xc; 1236178958Ssam 1237178958Ssam /* CCK rates (NB: not IEEE std, device-specific) */ 1238178958Ssam case 2: return 0x0; 1239178958Ssam case 4: return 0x1; 1240178958Ssam case 11: return 0x2; 1241178958Ssam case 22: return 0x3; 1242178958Ssam } 1243178958Ssam return 0xff; /* XXX unsupported/unknown rate */ 1244178958Ssam} 1245178958Ssam 1246156321Sdamienstatic void 1247156321Sdamienrt2661_setup_tx_desc(struct rt2661_softc *sc, struct rt2661_tx_desc *desc, 1248156321Sdamien uint32_t flags, uint16_t xflags, int len, int rate, 1249156321Sdamien const bus_dma_segment_t *segs, int nsegs, int ac) 1250156321Sdamien{ 1251178354Ssam struct ifnet *ifp = sc->sc_ifp; 1252178354Ssam struct ieee80211com *ic = ifp->if_l2com; 1253156321Sdamien uint16_t plcp_length; 1254156321Sdamien int i, remainder; 1255156321Sdamien 1256156321Sdamien desc->flags = htole32(flags); 1257156321Sdamien desc->flags |= htole32(len << 16); 1258156321Sdamien desc->flags |= htole32(RT2661_TX_BUSY | RT2661_TX_VALID); 1259156321Sdamien 1260156321Sdamien desc->xflags = htole16(xflags); 1261156321Sdamien desc->xflags |= htole16(nsegs << 13); 1262156321Sdamien 1263156321Sdamien desc->wme = htole16( 1264156321Sdamien RT2661_QID(ac) | 1265156321Sdamien RT2661_AIFSN(2) | 1266156321Sdamien RT2661_LOGCWMIN(4) | 1267156321Sdamien RT2661_LOGCWMAX(10)); 1268156321Sdamien 1269156321Sdamien /* 1270156321Sdamien * Remember in which queue this frame was sent. This field is driver 1271156321Sdamien * private data only. It will be made available by the NIC in STA_CSR4 1272156321Sdamien * on Tx interrupts. 1273156321Sdamien */ 1274156321Sdamien desc->qid = ac; 1275156321Sdamien 1276156321Sdamien /* setup PLCP fields */ 1277178958Ssam desc->plcp_signal = rt2661_plcp_signal(rate); 1278156321Sdamien desc->plcp_service = 4; 1279156321Sdamien 1280156321Sdamien len += IEEE80211_CRC_LEN; 1281190532Ssam if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1282156321Sdamien desc->flags |= htole32(RT2661_TX_OFDM); 1283156321Sdamien 1284156321Sdamien plcp_length = len & 0xfff; 1285156321Sdamien desc->plcp_length_hi = plcp_length >> 6; 1286156321Sdamien desc->plcp_length_lo = plcp_length & 0x3f; 1287156321Sdamien } else { 1288156321Sdamien plcp_length = (16 * len + rate - 1) / rate; 1289156321Sdamien if (rate == 22) { 1290156321Sdamien remainder = (16 * len) % 22; 1291156321Sdamien if (remainder != 0 && remainder < 7) 1292156321Sdamien desc->plcp_service |= RT2661_PLCP_LENGEXT; 1293156321Sdamien } 1294156321Sdamien desc->plcp_length_hi = plcp_length >> 8; 1295156321Sdamien desc->plcp_length_lo = plcp_length & 0xff; 1296156321Sdamien 1297156321Sdamien if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1298156321Sdamien desc->plcp_signal |= 0x08; 1299156321Sdamien } 1300156321Sdamien 1301156321Sdamien /* RT2x61 supports scatter with up to 5 segments */ 1302156321Sdamien for (i = 0; i < nsegs; i++) { 1303156321Sdamien desc->addr[i] = htole32(segs[i].ds_addr); 1304156321Sdamien desc->len [i] = htole16(segs[i].ds_len); 1305156321Sdamien } 1306156321Sdamien} 1307156321Sdamien 1308156321Sdamienstatic int 1309156321Sdamienrt2661_tx_mgt(struct rt2661_softc *sc, struct mbuf *m0, 1310156321Sdamien struct ieee80211_node *ni) 1311156321Sdamien{ 1312178354Ssam struct ieee80211vap *vap = ni->ni_vap; 1313178354Ssam struct ieee80211com *ic = ni->ni_ic; 1314156321Sdamien struct rt2661_tx_desc *desc; 1315156321Sdamien struct rt2661_tx_data *data; 1316156321Sdamien struct ieee80211_frame *wh; 1317173386Skevlo struct ieee80211_key *k; 1318156321Sdamien bus_dma_segment_t segs[RT2661_MAX_SCATTER]; 1319156321Sdamien uint16_t dur; 1320156321Sdamien uint32_t flags = 0; /* XXX HWSEQ */ 1321156321Sdamien int nsegs, rate, error; 1322156321Sdamien 1323156321Sdamien desc = &sc->mgtq.desc[sc->mgtq.cur]; 1324156321Sdamien data = &sc->mgtq.data[sc->mgtq.cur]; 1325156321Sdamien 1326178354Ssam rate = vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)].mgmtrate; 1327156321Sdamien 1328173386Skevlo wh = mtod(m0, struct ieee80211_frame *); 1329173386Skevlo 1330173386Skevlo if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1331178354Ssam k = ieee80211_crypto_encap(ni, m0); 1332173386Skevlo if (k == NULL) { 1333173386Skevlo m_freem(m0); 1334173386Skevlo return ENOBUFS; 1335173386Skevlo } 1336173386Skevlo } 1337173386Skevlo 1338156321Sdamien error = bus_dmamap_load_mbuf_sg(sc->mgtq.data_dmat, data->map, m0, 1339156321Sdamien segs, &nsegs, 0); 1340156321Sdamien if (error != 0) { 1341156321Sdamien device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1342156321Sdamien error); 1343156321Sdamien m_freem(m0); 1344156321Sdamien return error; 1345156321Sdamien } 1346156321Sdamien 1347192468Ssam if (ieee80211_radiotap_active_vap(vap)) { 1348156321Sdamien struct rt2661_tx_radiotap_header *tap = &sc->sc_txtap; 1349156321Sdamien 1350156321Sdamien tap->wt_flags = 0; 1351156321Sdamien tap->wt_rate = rate; 1352156321Sdamien 1353192468Ssam ieee80211_radiotap_tx(vap, m0); 1354156321Sdamien } 1355156321Sdamien 1356156321Sdamien data->m = m0; 1357156321Sdamien data->ni = ni; 1358178354Ssam /* management frames are not taken into account for amrr */ 1359178354Ssam data->rix = IEEE80211_FIXED_RATE_NONE; 1360156321Sdamien 1361156321Sdamien wh = mtod(m0, struct ieee80211_frame *); 1362156321Sdamien 1363156321Sdamien if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1364156321Sdamien flags |= RT2661_TX_NEED_ACK; 1365156321Sdamien 1366190532Ssam dur = ieee80211_ack_duration(ic->ic_rt, 1367178354Ssam rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1368156321Sdamien *(uint16_t *)wh->i_dur = htole16(dur); 1369156321Sdamien 1370156321Sdamien /* tell hardware to add timestamp in probe responses */ 1371156321Sdamien if ((wh->i_fc[0] & 1372156321Sdamien (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1373156321Sdamien (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1374156321Sdamien flags |= RT2661_TX_TIMESTAMP; 1375156321Sdamien } 1376156321Sdamien 1377156321Sdamien rt2661_setup_tx_desc(sc, desc, flags, 0 /* XXX HWSEQ */, 1378156321Sdamien m0->m_pkthdr.len, rate, segs, nsegs, RT2661_QID_MGT); 1379156321Sdamien 1380156321Sdamien bus_dmamap_sync(sc->mgtq.data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1381156321Sdamien bus_dmamap_sync(sc->mgtq.desc_dmat, sc->mgtq.desc_map, 1382156321Sdamien BUS_DMASYNC_PREWRITE); 1383156321Sdamien 1384178354Ssam DPRINTFN(sc, 10, "sending mgt frame len=%u idx=%u rate=%u\n", 1385178354Ssam m0->m_pkthdr.len, sc->mgtq.cur, rate); 1386156321Sdamien 1387156321Sdamien /* kick mgt */ 1388156321Sdamien sc->mgtq.queued++; 1389156321Sdamien sc->mgtq.cur = (sc->mgtq.cur + 1) % RT2661_MGT_RING_COUNT; 1390156321Sdamien RAL_WRITE(sc, RT2661_TX_CNTL_CSR, RT2661_KICK_MGT); 1391156321Sdamien 1392156321Sdamien return 0; 1393156321Sdamien} 1394156321Sdamien 1395178354Ssamstatic int 1396178354Ssamrt2661_sendprot(struct rt2661_softc *sc, int ac, 1397178354Ssam const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1398156321Sdamien{ 1399178354Ssam struct ieee80211com *ic = ni->ni_ic; 1400178354Ssam struct rt2661_tx_ring *txq = &sc->txq[ac]; 1401178354Ssam const struct ieee80211_frame *wh; 1402178354Ssam struct rt2661_tx_desc *desc; 1403178354Ssam struct rt2661_tx_data *data; 1404178354Ssam struct mbuf *mprot; 1405178354Ssam int protrate, ackrate, pktlen, flags, isshort, error; 1406178354Ssam uint16_t dur; 1407178354Ssam bus_dma_segment_t segs[RT2661_MAX_SCATTER]; 1408178354Ssam int nsegs; 1409156321Sdamien 1410178354Ssam KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1411178354Ssam ("protection %d", prot)); 1412178354Ssam 1413178354Ssam wh = mtod(m, const struct ieee80211_frame *); 1414178354Ssam pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1415178354Ssam 1416190532Ssam protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1417190532Ssam ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1418178354Ssam 1419178354Ssam isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1420190532Ssam dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1421190532Ssam + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1422178354Ssam flags = RT2661_TX_MORE_FRAG; 1423178354Ssam if (prot == IEEE80211_PROT_RTSCTS) { 1424178354Ssam /* NB: CTS is the same size as an ACK */ 1425190532Ssam dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1426178354Ssam flags |= RT2661_TX_NEED_ACK; 1427178354Ssam mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1428178354Ssam } else { 1429178354Ssam mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1430156321Sdamien } 1431178354Ssam if (mprot == NULL) { 1432178354Ssam /* XXX stat + msg */ 1433178354Ssam return ENOBUFS; 1434178354Ssam } 1435156321Sdamien 1436178354Ssam data = &txq->data[txq->cur]; 1437178354Ssam desc = &txq->desc[txq->cur]; 1438156321Sdamien 1439178354Ssam error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, mprot, segs, 1440178354Ssam &nsegs, 0); 1441178354Ssam if (error != 0) { 1442178354Ssam device_printf(sc->sc_dev, 1443178354Ssam "could not map mbuf (error %d)\n", error); 1444178354Ssam m_freem(mprot); 1445178354Ssam return error; 1446178354Ssam } 1447156321Sdamien 1448178354Ssam data->m = mprot; 1449178354Ssam data->ni = ieee80211_ref_node(ni); 1450178354Ssam /* ctl frames are not taken into account for amrr */ 1451178354Ssam data->rix = IEEE80211_FIXED_RATE_NONE; 1452156321Sdamien 1453178354Ssam rt2661_setup_tx_desc(sc, desc, flags, 0, mprot->m_pkthdr.len, 1454178354Ssam protrate, segs, 1, ac); 1455178354Ssam 1456178354Ssam bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1457178354Ssam bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE); 1458178354Ssam 1459178354Ssam txq->queued++; 1460178354Ssam txq->cur = (txq->cur + 1) % RT2661_TX_RING_COUNT; 1461178354Ssam 1462178354Ssam return 0; 1463156321Sdamien} 1464156321Sdamien 1465156321Sdamienstatic int 1466156321Sdamienrt2661_tx_data(struct rt2661_softc *sc, struct mbuf *m0, 1467156321Sdamien struct ieee80211_node *ni, int ac) 1468156321Sdamien{ 1469178354Ssam struct ieee80211vap *vap = ni->ni_vap; 1470178354Ssam struct ifnet *ifp = sc->sc_ifp; 1471178354Ssam struct ieee80211com *ic = ifp->if_l2com; 1472156321Sdamien struct rt2661_tx_ring *txq = &sc->txq[ac]; 1473156321Sdamien struct rt2661_tx_desc *desc; 1474156321Sdamien struct rt2661_tx_data *data; 1475156321Sdamien struct ieee80211_frame *wh; 1476178354Ssam const struct ieee80211_txparam *tp; 1477156321Sdamien struct ieee80211_key *k; 1478156321Sdamien const struct chanAccParams *cap; 1479156321Sdamien struct mbuf *mnew; 1480156321Sdamien bus_dma_segment_t segs[RT2661_MAX_SCATTER]; 1481156321Sdamien uint16_t dur; 1482178354Ssam uint32_t flags; 1483156321Sdamien int error, nsegs, rate, noack = 0; 1484156321Sdamien 1485156321Sdamien wh = mtod(m0, struct ieee80211_frame *); 1486156321Sdamien 1487178354Ssam tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1488178354Ssam if (IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1489178354Ssam rate = tp->mcastrate; 1490178354Ssam } else if (m0->m_flags & M_EAPOL) { 1491178354Ssam rate = tp->mgmtrate; 1492178354Ssam } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) { 1493178354Ssam rate = tp->ucastrate; 1494156321Sdamien } else { 1495206358Srpaulo (void) ieee80211_ratectl_rate(ni, NULL, 0); 1496178354Ssam rate = ni->ni_txrate; 1497156321Sdamien } 1498156321Sdamien rate &= IEEE80211_RATE_VAL; 1499156321Sdamien 1500156321Sdamien if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1501156321Sdamien cap = &ic->ic_wme.wme_chanParams; 1502156321Sdamien noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1503156321Sdamien } 1504156321Sdamien 1505156321Sdamien if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1506178354Ssam k = ieee80211_crypto_encap(ni, m0); 1507156321Sdamien if (k == NULL) { 1508156321Sdamien m_freem(m0); 1509156321Sdamien return ENOBUFS; 1510156321Sdamien } 1511156321Sdamien 1512156321Sdamien /* packet header may have moved, reset our local pointer */ 1513156321Sdamien wh = mtod(m0, struct ieee80211_frame *); 1514156321Sdamien } 1515156321Sdamien 1516178354Ssam flags = 0; 1517178354Ssam if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1518178354Ssam int prot = IEEE80211_PROT_NONE; 1519178354Ssam if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1520178354Ssam prot = IEEE80211_PROT_RTSCTS; 1521178354Ssam else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1522190532Ssam ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1523178354Ssam prot = ic->ic_protmode; 1524178354Ssam if (prot != IEEE80211_PROT_NONE) { 1525178354Ssam error = rt2661_sendprot(sc, ac, m0, ni, prot, rate); 1526178354Ssam if (error) { 1527178354Ssam m_freem(m0); 1528178354Ssam return error; 1529178354Ssam } 1530178354Ssam flags |= RT2661_TX_LONG_RETRY | RT2661_TX_IFS; 1531156321Sdamien } 1532156321Sdamien } 1533156321Sdamien 1534156321Sdamien data = &txq->data[txq->cur]; 1535156321Sdamien desc = &txq->desc[txq->cur]; 1536156321Sdamien 1537156321Sdamien error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, m0, segs, 1538156321Sdamien &nsegs, 0); 1539156321Sdamien if (error != 0 && error != EFBIG) { 1540156321Sdamien device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1541156321Sdamien error); 1542156321Sdamien m_freem(m0); 1543156321Sdamien return error; 1544156321Sdamien } 1545156321Sdamien if (error != 0) { 1546156321Sdamien mnew = m_defrag(m0, M_DONTWAIT); 1547156321Sdamien if (mnew == NULL) { 1548156321Sdamien device_printf(sc->sc_dev, 1549156321Sdamien "could not defragment mbuf\n"); 1550156321Sdamien m_freem(m0); 1551156321Sdamien return ENOBUFS; 1552156321Sdamien } 1553156321Sdamien m0 = mnew; 1554156321Sdamien 1555156321Sdamien error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, m0, 1556156321Sdamien segs, &nsegs, 0); 1557156321Sdamien if (error != 0) { 1558156321Sdamien device_printf(sc->sc_dev, 1559156321Sdamien "could not map mbuf (error %d)\n", error); 1560156321Sdamien m_freem(m0); 1561156321Sdamien return error; 1562156321Sdamien } 1563156321Sdamien 1564156321Sdamien /* packet header have moved, reset our local pointer */ 1565156321Sdamien wh = mtod(m0, struct ieee80211_frame *); 1566156321Sdamien } 1567156321Sdamien 1568192468Ssam if (ieee80211_radiotap_active_vap(vap)) { 1569156321Sdamien struct rt2661_tx_radiotap_header *tap = &sc->sc_txtap; 1570156321Sdamien 1571156321Sdamien tap->wt_flags = 0; 1572156321Sdamien tap->wt_rate = rate; 1573156321Sdamien 1574192468Ssam ieee80211_radiotap_tx(vap, m0); 1575156321Sdamien } 1576156321Sdamien 1577156321Sdamien data->m = m0; 1578156321Sdamien data->ni = ni; 1579156321Sdamien 1580156321Sdamien /* remember link conditions for rate adaptation algorithm */ 1581178354Ssam if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) { 1582178354Ssam data->rix = ni->ni_txrate; 1583178354Ssam /* XXX probably need last rssi value and not avg */ 1584178354Ssam data->rssi = ic->ic_node_getrssi(ni); 1585156321Sdamien } else 1586178354Ssam data->rix = IEEE80211_FIXED_RATE_NONE; 1587156321Sdamien 1588156321Sdamien if (!noack && !IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1589156321Sdamien flags |= RT2661_TX_NEED_ACK; 1590156321Sdamien 1591190532Ssam dur = ieee80211_ack_duration(ic->ic_rt, 1592178354Ssam rate, ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1593156321Sdamien *(uint16_t *)wh->i_dur = htole16(dur); 1594156321Sdamien } 1595156321Sdamien 1596156321Sdamien rt2661_setup_tx_desc(sc, desc, flags, 0, m0->m_pkthdr.len, rate, segs, 1597156321Sdamien nsegs, ac); 1598156321Sdamien 1599156321Sdamien bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1600156321Sdamien bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE); 1601156321Sdamien 1602178354Ssam DPRINTFN(sc, 10, "sending data frame len=%u idx=%u rate=%u\n", 1603178354Ssam m0->m_pkthdr.len, txq->cur, rate); 1604156321Sdamien 1605156321Sdamien /* kick Tx */ 1606156321Sdamien txq->queued++; 1607156321Sdamien txq->cur = (txq->cur + 1) % RT2661_TX_RING_COUNT; 1608156321Sdamien RAL_WRITE(sc, RT2661_TX_CNTL_CSR, 1 << ac); 1609156321Sdamien 1610156321Sdamien return 0; 1611156321Sdamien} 1612156321Sdamien 1613156321Sdamienstatic void 1614178354Ssamrt2661_start_locked(struct ifnet *ifp) 1615156321Sdamien{ 1616156321Sdamien struct rt2661_softc *sc = ifp->if_softc; 1617178354Ssam struct mbuf *m; 1618156321Sdamien struct ieee80211_node *ni; 1619156321Sdamien int ac; 1620156321Sdamien 1621178354Ssam RAL_LOCK_ASSERT(sc); 1622156321Sdamien 1623156975Sdamien /* prevent management frames from being sent if we're not ready */ 1624178354Ssam if (!(ifp->if_drv_flags & IFF_DRV_RUNNING) || sc->sc_invalid) 1625156975Sdamien return; 1626156975Sdamien 1627156321Sdamien for (;;) { 1628178354Ssam IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1629178354Ssam if (m == NULL) 1630178354Ssam break; 1631156321Sdamien 1632178354Ssam ac = M_WME_GETAC(m); 1633178354Ssam if (sc->txq[ac].queued >= RT2661_TX_RING_COUNT - 1) { 1634178354Ssam /* there is no place left in this ring */ 1635178354Ssam IFQ_DRV_PREPEND(&ifp->if_snd, m); 1636178354Ssam ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1637178354Ssam break; 1638178354Ssam } 1639178354Ssam ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1640178354Ssam if (rt2661_tx_data(sc, m, ni, ac) != 0) { 1641178354Ssam ieee80211_free_node(ni); 1642178354Ssam ifp->if_oerrors++; 1643178354Ssam break; 1644178354Ssam } 1645156321Sdamien 1646178354Ssam sc->sc_tx_timer = 5; 1647178354Ssam } 1648178354Ssam} 1649156321Sdamien 1650178354Ssamstatic void 1651178354Ssamrt2661_start(struct ifnet *ifp) 1652178354Ssam{ 1653178354Ssam struct rt2661_softc *sc = ifp->if_softc; 1654156321Sdamien 1655178354Ssam RAL_LOCK(sc); 1656178354Ssam rt2661_start_locked(ifp); 1657178354Ssam RAL_UNLOCK(sc); 1658178354Ssam} 1659156321Sdamien 1660178354Ssamstatic int 1661178354Ssamrt2661_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1662178354Ssam const struct ieee80211_bpf_params *params) 1663178354Ssam{ 1664178354Ssam struct ieee80211com *ic = ni->ni_ic; 1665178354Ssam struct ifnet *ifp = ic->ic_ifp; 1666178354Ssam struct rt2661_softc *sc = ifp->if_softc; 1667156321Sdamien 1668178354Ssam RAL_LOCK(sc); 1669156321Sdamien 1670178354Ssam /* prevent management frames from being sent if we're not ready */ 1671178354Ssam if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 1672178354Ssam RAL_UNLOCK(sc); 1673178354Ssam m_freem(m); 1674178354Ssam ieee80211_free_node(ni); 1675178354Ssam return ENETDOWN; 1676178354Ssam } 1677178354Ssam if (sc->mgtq.queued >= RT2661_MGT_RING_COUNT) { 1678178354Ssam ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1679178354Ssam RAL_UNLOCK(sc); 1680178354Ssam m_freem(m); 1681178354Ssam ieee80211_free_node(ni); 1682178354Ssam return ENOBUFS; /* XXX */ 1683178354Ssam } 1684156321Sdamien 1685178354Ssam ifp->if_opackets++; 1686156321Sdamien 1687178354Ssam /* 1688178354Ssam * Legacy path; interpret frame contents to decide 1689178354Ssam * precisely how to send the frame. 1690178354Ssam * XXX raw path 1691178354Ssam */ 1692178354Ssam if (rt2661_tx_mgt(sc, m, ni) != 0) 1693178354Ssam goto bad; 1694178354Ssam sc->sc_tx_timer = 5; 1695156321Sdamien 1696178354Ssam RAL_UNLOCK(sc); 1697156321Sdamien 1698178354Ssam return 0; 1699178354Ssambad: 1700178354Ssam ifp->if_oerrors++; 1701178354Ssam ieee80211_free_node(ni); 1702156321Sdamien RAL_UNLOCK(sc); 1703178354Ssam return EIO; /* XXX */ 1704156321Sdamien} 1705156321Sdamien 1706156321Sdamienstatic void 1707165352Sbmsrt2661_watchdog(void *arg) 1708156321Sdamien{ 1709165352Sbms struct rt2661_softc *sc = (struct rt2661_softc *)arg; 1710178354Ssam struct ifnet *ifp = sc->sc_ifp; 1711156321Sdamien 1712178354Ssam RAL_LOCK_ASSERT(sc); 1713156321Sdamien 1714178354Ssam KASSERT(ifp->if_drv_flags & IFF_DRV_RUNNING, ("not running")); 1715156321Sdamien 1716178354Ssam if (sc->sc_invalid) /* card ejected */ 1717178354Ssam return; 1718156321Sdamien 1719178354Ssam if (sc->sc_tx_timer > 0 && --sc->sc_tx_timer == 0) { 1720178354Ssam if_printf(ifp, "device timeout\n"); 1721178354Ssam rt2661_init_locked(sc); 1722178354Ssam ifp->if_oerrors++; 1723178354Ssam /* NB: callout is reset in rt2661_init() */ 1724178354Ssam return; 1725178354Ssam } 1726178354Ssam callout_reset(&sc->watchdog_ch, hz, rt2661_watchdog, sc); 1727156321Sdamien} 1728156321Sdamien 1729156321Sdamienstatic int 1730156321Sdamienrt2661_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1731156321Sdamien{ 1732156321Sdamien struct rt2661_softc *sc = ifp->if_softc; 1733178354Ssam struct ieee80211com *ic = ifp->if_l2com; 1734178354Ssam struct ifreq *ifr = (struct ifreq *) data; 1735178354Ssam int error = 0, startall = 0; 1736156321Sdamien 1737156321Sdamien switch (cmd) { 1738156321Sdamien case SIOCSIFFLAGS: 1739178704Sthompsa RAL_LOCK(sc); 1740156321Sdamien if (ifp->if_flags & IFF_UP) { 1741178354Ssam if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1742178354Ssam rt2661_init_locked(sc); 1743178354Ssam startall = 1; 1744178354Ssam } else 1745178354Ssam rt2661_update_promisc(ifp); 1746156321Sdamien } else { 1747156321Sdamien if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1748178354Ssam rt2661_stop_locked(sc); 1749156321Sdamien } 1750178704Sthompsa RAL_UNLOCK(sc); 1751178704Sthompsa if (startall) 1752178704Sthompsa ieee80211_start_all(ic); 1753156321Sdamien break; 1754178354Ssam case SIOCGIFMEDIA: 1755178354Ssam error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1756178354Ssam break; 1757178704Sthompsa case SIOCGIFADDR: 1758178354Ssam error = ether_ioctl(ifp, cmd, data); 1759178354Ssam break; 1760178704Sthompsa default: 1761178704Sthompsa error = EINVAL; 1762178704Sthompsa break; 1763156321Sdamien } 1764156321Sdamien return error; 1765156321Sdamien} 1766156321Sdamien 1767156321Sdamienstatic void 1768156321Sdamienrt2661_bbp_write(struct rt2661_softc *sc, uint8_t reg, uint8_t val) 1769156321Sdamien{ 1770156321Sdamien uint32_t tmp; 1771156321Sdamien int ntries; 1772156321Sdamien 1773156321Sdamien for (ntries = 0; ntries < 100; ntries++) { 1774156321Sdamien if (!(RAL_READ(sc, RT2661_PHY_CSR3) & RT2661_BBP_BUSY)) 1775156321Sdamien break; 1776156321Sdamien DELAY(1); 1777156321Sdamien } 1778156321Sdamien if (ntries == 100) { 1779156321Sdamien device_printf(sc->sc_dev, "could not write to BBP\n"); 1780156321Sdamien return; 1781156321Sdamien } 1782156321Sdamien 1783156321Sdamien tmp = RT2661_BBP_BUSY | (reg & 0x7f) << 8 | val; 1784156321Sdamien RAL_WRITE(sc, RT2661_PHY_CSR3, tmp); 1785156321Sdamien 1786178354Ssam DPRINTFN(sc, 15, "BBP R%u <- 0x%02x\n", reg, val); 1787156321Sdamien} 1788156321Sdamien 1789156321Sdamienstatic uint8_t 1790156321Sdamienrt2661_bbp_read(struct rt2661_softc *sc, uint8_t reg) 1791156321Sdamien{ 1792156321Sdamien uint32_t val; 1793156321Sdamien int ntries; 1794156321Sdamien 1795156321Sdamien for (ntries = 0; ntries < 100; ntries++) { 1796156321Sdamien if (!(RAL_READ(sc, RT2661_PHY_CSR3) & RT2661_BBP_BUSY)) 1797156321Sdamien break; 1798156321Sdamien DELAY(1); 1799156321Sdamien } 1800156321Sdamien if (ntries == 100) { 1801156321Sdamien device_printf(sc->sc_dev, "could not read from BBP\n"); 1802156321Sdamien return 0; 1803156321Sdamien } 1804156321Sdamien 1805156321Sdamien val = RT2661_BBP_BUSY | RT2661_BBP_READ | reg << 8; 1806156321Sdamien RAL_WRITE(sc, RT2661_PHY_CSR3, val); 1807156321Sdamien 1808156321Sdamien for (ntries = 0; ntries < 100; ntries++) { 1809156321Sdamien val = RAL_READ(sc, RT2661_PHY_CSR3); 1810156321Sdamien if (!(val & RT2661_BBP_BUSY)) 1811156321Sdamien return val & 0xff; 1812156321Sdamien DELAY(1); 1813156321Sdamien } 1814156321Sdamien 1815156321Sdamien device_printf(sc->sc_dev, "could not read from BBP\n"); 1816156321Sdamien return 0; 1817156321Sdamien} 1818156321Sdamien 1819156321Sdamienstatic void 1820156321Sdamienrt2661_rf_write(struct rt2661_softc *sc, uint8_t reg, uint32_t val) 1821156321Sdamien{ 1822156321Sdamien uint32_t tmp; 1823156321Sdamien int ntries; 1824156321Sdamien 1825156321Sdamien for (ntries = 0; ntries < 100; ntries++) { 1826156321Sdamien if (!(RAL_READ(sc, RT2661_PHY_CSR4) & RT2661_RF_BUSY)) 1827156321Sdamien break; 1828156321Sdamien DELAY(1); 1829156321Sdamien } 1830156321Sdamien if (ntries == 100) { 1831156321Sdamien device_printf(sc->sc_dev, "could not write to RF\n"); 1832156321Sdamien return; 1833156321Sdamien } 1834156321Sdamien 1835156321Sdamien tmp = RT2661_RF_BUSY | RT2661_RF_21BIT | (val & 0x1fffff) << 2 | 1836156321Sdamien (reg & 3); 1837156321Sdamien RAL_WRITE(sc, RT2661_PHY_CSR4, tmp); 1838156321Sdamien 1839156321Sdamien /* remember last written value in sc */ 1840156321Sdamien sc->rf_regs[reg] = val; 1841156321Sdamien 1842178354Ssam DPRINTFN(sc, 15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0x1fffff); 1843156321Sdamien} 1844156321Sdamien 1845156321Sdamienstatic int 1846156321Sdamienrt2661_tx_cmd(struct rt2661_softc *sc, uint8_t cmd, uint16_t arg) 1847156321Sdamien{ 1848156321Sdamien if (RAL_READ(sc, RT2661_H2M_MAILBOX_CSR) & RT2661_H2M_BUSY) 1849156321Sdamien return EIO; /* there is already a command pending */ 1850156321Sdamien 1851156321Sdamien RAL_WRITE(sc, RT2661_H2M_MAILBOX_CSR, 1852156321Sdamien RT2661_H2M_BUSY | RT2661_TOKEN_NO_INTR << 16 | arg); 1853156321Sdamien 1854156321Sdamien RAL_WRITE(sc, RT2661_HOST_CMD_CSR, RT2661_KICK_CMD | cmd); 1855156321Sdamien 1856156321Sdamien return 0; 1857156321Sdamien} 1858156321Sdamien 1859156321Sdamienstatic void 1860156321Sdamienrt2661_select_antenna(struct rt2661_softc *sc) 1861156321Sdamien{ 1862156321Sdamien uint8_t bbp4, bbp77; 1863156321Sdamien uint32_t tmp; 1864156321Sdamien 1865156321Sdamien bbp4 = rt2661_bbp_read(sc, 4); 1866156321Sdamien bbp77 = rt2661_bbp_read(sc, 77); 1867156321Sdamien 1868156321Sdamien /* TBD */ 1869156321Sdamien 1870156321Sdamien /* make sure Rx is disabled before switching antenna */ 1871156321Sdamien tmp = RAL_READ(sc, RT2661_TXRX_CSR0); 1872156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp | RT2661_DISABLE_RX); 1873156321Sdamien 1874156321Sdamien rt2661_bbp_write(sc, 4, bbp4); 1875156321Sdamien rt2661_bbp_write(sc, 77, bbp77); 1876156321Sdamien 1877156321Sdamien /* restore Rx filter */ 1878156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp); 1879156321Sdamien} 1880156321Sdamien 1881156321Sdamien/* 1882156321Sdamien * Enable multi-rate retries for frames sent at OFDM rates. 1883156321Sdamien * In 802.11b/g mode, allow fallback to CCK rates. 1884156321Sdamien */ 1885156321Sdamienstatic void 1886156321Sdamienrt2661_enable_mrr(struct rt2661_softc *sc) 1887156321Sdamien{ 1888178354Ssam struct ifnet *ifp = sc->sc_ifp; 1889178354Ssam struct ieee80211com *ic = ifp->if_l2com; 1890156321Sdamien uint32_t tmp; 1891156321Sdamien 1892156321Sdamien tmp = RAL_READ(sc, RT2661_TXRX_CSR4); 1893156321Sdamien 1894156321Sdamien tmp &= ~RT2661_MRR_CCK_FALLBACK; 1895178354Ssam if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1896156321Sdamien tmp |= RT2661_MRR_CCK_FALLBACK; 1897156321Sdamien tmp |= RT2661_MRR_ENABLED; 1898156321Sdamien 1899156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR4, tmp); 1900156321Sdamien} 1901156321Sdamien 1902156321Sdamienstatic void 1903156321Sdamienrt2661_set_txpreamble(struct rt2661_softc *sc) 1904156321Sdamien{ 1905178354Ssam struct ifnet *ifp = sc->sc_ifp; 1906178354Ssam struct ieee80211com *ic = ifp->if_l2com; 1907156321Sdamien uint32_t tmp; 1908156321Sdamien 1909156321Sdamien tmp = RAL_READ(sc, RT2661_TXRX_CSR4); 1910156321Sdamien 1911156321Sdamien tmp &= ~RT2661_SHORT_PREAMBLE; 1912178354Ssam if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1913156321Sdamien tmp |= RT2661_SHORT_PREAMBLE; 1914156321Sdamien 1915156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR4, tmp); 1916156321Sdamien} 1917156321Sdamien 1918156321Sdamienstatic void 1919156321Sdamienrt2661_set_basicrates(struct rt2661_softc *sc, 1920156321Sdamien const struct ieee80211_rateset *rs) 1921156321Sdamien{ 1922156321Sdamien#define RV(r) ((r) & IEEE80211_RATE_VAL) 1923178354Ssam struct ifnet *ifp = sc->sc_ifp; 1924178354Ssam struct ieee80211com *ic = ifp->if_l2com; 1925156321Sdamien uint32_t mask = 0; 1926156321Sdamien uint8_t rate; 1927156321Sdamien int i, j; 1928156321Sdamien 1929156321Sdamien for (i = 0; i < rs->rs_nrates; i++) { 1930156321Sdamien rate = rs->rs_rates[i]; 1931156321Sdamien 1932156321Sdamien if (!(rate & IEEE80211_RATE_BASIC)) 1933156321Sdamien continue; 1934156321Sdamien 1935156321Sdamien /* 1936156321Sdamien * Find h/w rate index. We know it exists because the rate 1937156321Sdamien * set has already been negotiated. 1938156321Sdamien */ 1939167470Ssam for (j = 0; ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates[j] != RV(rate); j++); 1940156321Sdamien 1941156321Sdamien mask |= 1 << j; 1942156321Sdamien } 1943156321Sdamien 1944156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR5, mask); 1945156321Sdamien 1946178354Ssam DPRINTF(sc, "Setting basic rate mask to 0x%x\n", mask); 1947156321Sdamien#undef RV 1948156321Sdamien} 1949156321Sdamien 1950156321Sdamien/* 1951156321Sdamien * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1952156321Sdamien * driver. 1953156321Sdamien */ 1954156321Sdamienstatic void 1955156321Sdamienrt2661_select_band(struct rt2661_softc *sc, struct ieee80211_channel *c) 1956156321Sdamien{ 1957156321Sdamien uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1958156321Sdamien uint32_t tmp; 1959156321Sdamien 1960156321Sdamien /* update all BBP registers that depend on the band */ 1961156321Sdamien bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1962156321Sdamien bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1963156321Sdamien if (IEEE80211_IS_CHAN_5GHZ(c)) { 1964156321Sdamien bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1965156321Sdamien bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1966156321Sdamien } 1967156321Sdamien if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1968156321Sdamien (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1969156321Sdamien bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1970156321Sdamien } 1971156321Sdamien 1972156321Sdamien rt2661_bbp_write(sc, 17, bbp17); 1973156321Sdamien rt2661_bbp_write(sc, 96, bbp96); 1974156321Sdamien rt2661_bbp_write(sc, 104, bbp104); 1975156321Sdamien 1976156321Sdamien if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1977156321Sdamien (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1978156321Sdamien rt2661_bbp_write(sc, 75, 0x80); 1979156321Sdamien rt2661_bbp_write(sc, 86, 0x80); 1980156321Sdamien rt2661_bbp_write(sc, 88, 0x80); 1981156321Sdamien } 1982156321Sdamien 1983156321Sdamien rt2661_bbp_write(sc, 35, bbp35); 1984156321Sdamien rt2661_bbp_write(sc, 97, bbp97); 1985156321Sdamien rt2661_bbp_write(sc, 98, bbp98); 1986156321Sdamien 1987156321Sdamien tmp = RAL_READ(sc, RT2661_PHY_CSR0); 1988156321Sdamien tmp &= ~(RT2661_PA_PE_2GHZ | RT2661_PA_PE_5GHZ); 1989156321Sdamien if (IEEE80211_IS_CHAN_2GHZ(c)) 1990156321Sdamien tmp |= RT2661_PA_PE_2GHZ; 1991156321Sdamien else 1992156321Sdamien tmp |= RT2661_PA_PE_5GHZ; 1993156321Sdamien RAL_WRITE(sc, RT2661_PHY_CSR0, tmp); 1994156321Sdamien} 1995156321Sdamien 1996156321Sdamienstatic void 1997156321Sdamienrt2661_set_chan(struct rt2661_softc *sc, struct ieee80211_channel *c) 1998156321Sdamien{ 1999178354Ssam struct ifnet *ifp = sc->sc_ifp; 2000178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2001156321Sdamien const struct rfprog *rfprog; 2002156321Sdamien uint8_t bbp3, bbp94 = RT2661_BBPR94_DEFAULT; 2003156321Sdamien int8_t power; 2004156321Sdamien u_int i, chan; 2005156321Sdamien 2006156321Sdamien chan = ieee80211_chan2ieee(ic, c); 2007178354Ssam KASSERT(chan != 0 && chan != IEEE80211_CHAN_ANY, ("chan 0x%x", chan)); 2008156321Sdamien 2009156321Sdamien /* select the appropriate RF settings based on what EEPROM says */ 2010156321Sdamien rfprog = (sc->rfprog == 0) ? rt2661_rf5225_1 : rt2661_rf5225_2; 2011156321Sdamien 2012156321Sdamien /* find the settings for this channel (we know it exists) */ 2013156321Sdamien for (i = 0; rfprog[i].chan != chan; i++); 2014156321Sdamien 2015156321Sdamien power = sc->txpow[i]; 2016156321Sdamien if (power < 0) { 2017156321Sdamien bbp94 += power; 2018156321Sdamien power = 0; 2019156321Sdamien } else if (power > 31) { 2020156321Sdamien bbp94 += power - 31; 2021156321Sdamien power = 31; 2022156321Sdamien } 2023156321Sdamien 2024156321Sdamien /* 2025156321Sdamien * If we are switching from the 2GHz band to the 5GHz band or 2026156321Sdamien * vice-versa, BBP registers need to be reprogrammed. 2027156321Sdamien */ 2028156321Sdamien if (c->ic_flags != sc->sc_curchan->ic_flags) { 2029156321Sdamien rt2661_select_band(sc, c); 2030156321Sdamien rt2661_select_antenna(sc); 2031156321Sdamien } 2032156321Sdamien sc->sc_curchan = c; 2033156321Sdamien 2034156321Sdamien rt2661_rf_write(sc, RAL_RF1, rfprog[i].r1); 2035156321Sdamien rt2661_rf_write(sc, RAL_RF2, rfprog[i].r2); 2036156321Sdamien rt2661_rf_write(sc, RAL_RF3, rfprog[i].r3 | power << 7); 2037156321Sdamien rt2661_rf_write(sc, RAL_RF4, rfprog[i].r4 | sc->rffreq << 10); 2038156321Sdamien 2039156321Sdamien DELAY(200); 2040156321Sdamien 2041156321Sdamien rt2661_rf_write(sc, RAL_RF1, rfprog[i].r1); 2042156321Sdamien rt2661_rf_write(sc, RAL_RF2, rfprog[i].r2); 2043156321Sdamien rt2661_rf_write(sc, RAL_RF3, rfprog[i].r3 | power << 7 | 1); 2044156321Sdamien rt2661_rf_write(sc, RAL_RF4, rfprog[i].r4 | sc->rffreq << 10); 2045156321Sdamien 2046156321Sdamien DELAY(200); 2047156321Sdamien 2048156321Sdamien rt2661_rf_write(sc, RAL_RF1, rfprog[i].r1); 2049156321Sdamien rt2661_rf_write(sc, RAL_RF2, rfprog[i].r2); 2050156321Sdamien rt2661_rf_write(sc, RAL_RF3, rfprog[i].r3 | power << 7); 2051156321Sdamien rt2661_rf_write(sc, RAL_RF4, rfprog[i].r4 | sc->rffreq << 10); 2052156321Sdamien 2053156321Sdamien /* enable smart mode for MIMO-capable RFs */ 2054156321Sdamien bbp3 = rt2661_bbp_read(sc, 3); 2055156321Sdamien 2056156321Sdamien bbp3 &= ~RT2661_SMART_MODE; 2057156321Sdamien if (sc->rf_rev == RT2661_RF_5325 || sc->rf_rev == RT2661_RF_2529) 2058156321Sdamien bbp3 |= RT2661_SMART_MODE; 2059156321Sdamien 2060156321Sdamien rt2661_bbp_write(sc, 3, bbp3); 2061156321Sdamien 2062156321Sdamien if (bbp94 != RT2661_BBPR94_DEFAULT) 2063156321Sdamien rt2661_bbp_write(sc, 94, bbp94); 2064156321Sdamien 2065156321Sdamien /* 5GHz radio needs a 1ms delay here */ 2066156321Sdamien if (IEEE80211_IS_CHAN_5GHZ(c)) 2067156321Sdamien DELAY(1000); 2068156321Sdamien} 2069156321Sdamien 2070156321Sdamienstatic void 2071156321Sdamienrt2661_set_bssid(struct rt2661_softc *sc, const uint8_t *bssid) 2072156321Sdamien{ 2073156321Sdamien uint32_t tmp; 2074156321Sdamien 2075156321Sdamien tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 2076156321Sdamien RAL_WRITE(sc, RT2661_MAC_CSR4, tmp); 2077156321Sdamien 2078156321Sdamien tmp = bssid[4] | bssid[5] << 8 | RT2661_ONE_BSSID << 16; 2079156321Sdamien RAL_WRITE(sc, RT2661_MAC_CSR5, tmp); 2080156321Sdamien} 2081156321Sdamien 2082156321Sdamienstatic void 2083156321Sdamienrt2661_set_macaddr(struct rt2661_softc *sc, const uint8_t *addr) 2084156321Sdamien{ 2085156321Sdamien uint32_t tmp; 2086156321Sdamien 2087156321Sdamien tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 2088156321Sdamien RAL_WRITE(sc, RT2661_MAC_CSR2, tmp); 2089156321Sdamien 2090156321Sdamien tmp = addr[4] | addr[5] << 8; 2091156321Sdamien RAL_WRITE(sc, RT2661_MAC_CSR3, tmp); 2092156321Sdamien} 2093156321Sdamien 2094156321Sdamienstatic void 2095178354Ssamrt2661_update_promisc(struct ifnet *ifp) 2096156321Sdamien{ 2097178354Ssam struct rt2661_softc *sc = ifp->if_softc; 2098156321Sdamien uint32_t tmp; 2099156321Sdamien 2100156321Sdamien tmp = RAL_READ(sc, RT2661_TXRX_CSR0); 2101156321Sdamien 2102156321Sdamien tmp &= ~RT2661_DROP_NOT_TO_ME; 2103156321Sdamien if (!(ifp->if_flags & IFF_PROMISC)) 2104156321Sdamien tmp |= RT2661_DROP_NOT_TO_ME; 2105156321Sdamien 2106156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp); 2107156321Sdamien 2108178354Ssam DPRINTF(sc, "%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 2109178354Ssam "entering" : "leaving"); 2110156321Sdamien} 2111156321Sdamien 2112156321Sdamien/* 2113156321Sdamien * Update QoS (802.11e) settings for each h/w Tx ring. 2114156321Sdamien */ 2115156321Sdamienstatic int 2116156321Sdamienrt2661_wme_update(struct ieee80211com *ic) 2117156321Sdamien{ 2118156321Sdamien struct rt2661_softc *sc = ic->ic_ifp->if_softc; 2119156321Sdamien const struct wmeParams *wmep; 2120156321Sdamien 2121156321Sdamien wmep = ic->ic_wme.wme_chanParams.cap_wmeParams; 2122156321Sdamien 2123156321Sdamien /* XXX: not sure about shifts. */ 2124156321Sdamien /* XXX: the reference driver plays with AC_VI settings too. */ 2125156321Sdamien 2126156321Sdamien /* update TxOp */ 2127156321Sdamien RAL_WRITE(sc, RT2661_AC_TXOP_CSR0, 2128156321Sdamien wmep[WME_AC_BE].wmep_txopLimit << 16 | 2129156321Sdamien wmep[WME_AC_BK].wmep_txopLimit); 2130156321Sdamien RAL_WRITE(sc, RT2661_AC_TXOP_CSR1, 2131156321Sdamien wmep[WME_AC_VI].wmep_txopLimit << 16 | 2132156321Sdamien wmep[WME_AC_VO].wmep_txopLimit); 2133156321Sdamien 2134156321Sdamien /* update CWmin */ 2135156321Sdamien RAL_WRITE(sc, RT2661_CWMIN_CSR, 2136156321Sdamien wmep[WME_AC_BE].wmep_logcwmin << 12 | 2137156321Sdamien wmep[WME_AC_BK].wmep_logcwmin << 8 | 2138156321Sdamien wmep[WME_AC_VI].wmep_logcwmin << 4 | 2139156321Sdamien wmep[WME_AC_VO].wmep_logcwmin); 2140156321Sdamien 2141156321Sdamien /* update CWmax */ 2142156321Sdamien RAL_WRITE(sc, RT2661_CWMAX_CSR, 2143156321Sdamien wmep[WME_AC_BE].wmep_logcwmax << 12 | 2144156321Sdamien wmep[WME_AC_BK].wmep_logcwmax << 8 | 2145156321Sdamien wmep[WME_AC_VI].wmep_logcwmax << 4 | 2146156321Sdamien wmep[WME_AC_VO].wmep_logcwmax); 2147156321Sdamien 2148156321Sdamien /* update Aifsn */ 2149156321Sdamien RAL_WRITE(sc, RT2661_AIFSN_CSR, 2150156321Sdamien wmep[WME_AC_BE].wmep_aifsn << 12 | 2151156321Sdamien wmep[WME_AC_BK].wmep_aifsn << 8 | 2152156321Sdamien wmep[WME_AC_VI].wmep_aifsn << 4 | 2153156321Sdamien wmep[WME_AC_VO].wmep_aifsn); 2154156321Sdamien 2155156321Sdamien return 0; 2156156321Sdamien} 2157156321Sdamien 2158156321Sdamienstatic void 2159156321Sdamienrt2661_update_slot(struct ifnet *ifp) 2160156321Sdamien{ 2161156321Sdamien struct rt2661_softc *sc = ifp->if_softc; 2162178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2163156321Sdamien uint8_t slottime; 2164156321Sdamien uint32_t tmp; 2165156321Sdamien 2166156321Sdamien slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 2167156321Sdamien 2168156321Sdamien tmp = RAL_READ(sc, RT2661_MAC_CSR9); 2169156321Sdamien tmp = (tmp & ~0xff) | slottime; 2170156321Sdamien RAL_WRITE(sc, RT2661_MAC_CSR9, tmp); 2171156321Sdamien} 2172156321Sdamien 2173156321Sdamienstatic const char * 2174156321Sdamienrt2661_get_rf(int rev) 2175156321Sdamien{ 2176156321Sdamien switch (rev) { 2177156321Sdamien case RT2661_RF_5225: return "RT5225"; 2178156321Sdamien case RT2661_RF_5325: return "RT5325 (MIMO XR)"; 2179156321Sdamien case RT2661_RF_2527: return "RT2527"; 2180156321Sdamien case RT2661_RF_2529: return "RT2529 (MIMO XR)"; 2181156321Sdamien default: return "unknown"; 2182156321Sdamien } 2183156321Sdamien} 2184156321Sdamien 2185156321Sdamienstatic void 2186190526Ssamrt2661_read_eeprom(struct rt2661_softc *sc, uint8_t macaddr[IEEE80211_ADDR_LEN]) 2187156321Sdamien{ 2188156321Sdamien uint16_t val; 2189156321Sdamien int i; 2190156321Sdamien 2191156321Sdamien /* read MAC address */ 2192156321Sdamien val = rt2661_eeprom_read(sc, RT2661_EEPROM_MAC01); 2193190526Ssam macaddr[0] = val & 0xff; 2194190526Ssam macaddr[1] = val >> 8; 2195156321Sdamien 2196156321Sdamien val = rt2661_eeprom_read(sc, RT2661_EEPROM_MAC23); 2197190526Ssam macaddr[2] = val & 0xff; 2198190526Ssam macaddr[3] = val >> 8; 2199156321Sdamien 2200156321Sdamien val = rt2661_eeprom_read(sc, RT2661_EEPROM_MAC45); 2201190526Ssam macaddr[4] = val & 0xff; 2202190526Ssam macaddr[5] = val >> 8; 2203156321Sdamien 2204156321Sdamien val = rt2661_eeprom_read(sc, RT2661_EEPROM_ANTENNA); 2205156321Sdamien /* XXX: test if different from 0xffff? */ 2206156321Sdamien sc->rf_rev = (val >> 11) & 0x1f; 2207156321Sdamien sc->hw_radio = (val >> 10) & 0x1; 2208156321Sdamien sc->rx_ant = (val >> 4) & 0x3; 2209156321Sdamien sc->tx_ant = (val >> 2) & 0x3; 2210156321Sdamien sc->nb_ant = val & 0x3; 2211156321Sdamien 2212178354Ssam DPRINTF(sc, "RF revision=%d\n", sc->rf_rev); 2213156321Sdamien 2214156321Sdamien val = rt2661_eeprom_read(sc, RT2661_EEPROM_CONFIG2); 2215156321Sdamien sc->ext_5ghz_lna = (val >> 6) & 0x1; 2216156321Sdamien sc->ext_2ghz_lna = (val >> 4) & 0x1; 2217156321Sdamien 2218178354Ssam DPRINTF(sc, "External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 2219178354Ssam sc->ext_2ghz_lna, sc->ext_5ghz_lna); 2220156321Sdamien 2221156321Sdamien val = rt2661_eeprom_read(sc, RT2661_EEPROM_RSSI_2GHZ_OFFSET); 2222156321Sdamien if ((val & 0xff) != 0xff) 2223156321Sdamien sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 2224156321Sdamien 2225170530Ssam /* Only [-10, 10] is valid */ 2226170530Ssam if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 2227170530Ssam sc->rssi_2ghz_corr = 0; 2228170530Ssam 2229156321Sdamien val = rt2661_eeprom_read(sc, RT2661_EEPROM_RSSI_5GHZ_OFFSET); 2230156321Sdamien if ((val & 0xff) != 0xff) 2231156321Sdamien sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 2232156321Sdamien 2233170530Ssam /* Only [-10, 10] is valid */ 2234170530Ssam if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 2235170530Ssam sc->rssi_5ghz_corr = 0; 2236170530Ssam 2237156321Sdamien /* adjust RSSI correction for external low-noise amplifier */ 2238156321Sdamien if (sc->ext_2ghz_lna) 2239156321Sdamien sc->rssi_2ghz_corr -= 14; 2240156321Sdamien if (sc->ext_5ghz_lna) 2241156321Sdamien sc->rssi_5ghz_corr -= 14; 2242156321Sdamien 2243178354Ssam DPRINTF(sc, "RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2244178354Ssam sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2245156321Sdamien 2246156321Sdamien val = rt2661_eeprom_read(sc, RT2661_EEPROM_FREQ_OFFSET); 2247156321Sdamien if ((val >> 8) != 0xff) 2248156321Sdamien sc->rfprog = (val >> 8) & 0x3; 2249156321Sdamien if ((val & 0xff) != 0xff) 2250156321Sdamien sc->rffreq = val & 0xff; 2251156321Sdamien 2252178354Ssam DPRINTF(sc, "RF prog=%d\nRF freq=%d\n", sc->rfprog, sc->rffreq); 2253156321Sdamien 2254156321Sdamien /* read Tx power for all a/b/g channels */ 2255156321Sdamien for (i = 0; i < 19; i++) { 2256156321Sdamien val = rt2661_eeprom_read(sc, RT2661_EEPROM_TXPOWER + i); 2257156321Sdamien sc->txpow[i * 2] = (int8_t)(val >> 8); /* signed */ 2258178354Ssam DPRINTF(sc, "Channel=%d Tx power=%d\n", 2259178354Ssam rt2661_rf5225_1[i * 2].chan, sc->txpow[i * 2]); 2260156321Sdamien sc->txpow[i * 2 + 1] = (int8_t)(val & 0xff); /* signed */ 2261178354Ssam DPRINTF(sc, "Channel=%d Tx power=%d\n", 2262178354Ssam rt2661_rf5225_1[i * 2 + 1].chan, sc->txpow[i * 2 + 1]); 2263156321Sdamien } 2264156321Sdamien 2265156321Sdamien /* read vendor-specific BBP values */ 2266156321Sdamien for (i = 0; i < 16; i++) { 2267156321Sdamien val = rt2661_eeprom_read(sc, RT2661_EEPROM_BBP_BASE + i); 2268156321Sdamien if (val == 0 || val == 0xffff) 2269156321Sdamien continue; /* skip invalid entries */ 2270156321Sdamien sc->bbp_prom[i].reg = val >> 8; 2271156321Sdamien sc->bbp_prom[i].val = val & 0xff; 2272178354Ssam DPRINTF(sc, "BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2273178354Ssam sc->bbp_prom[i].val); 2274156321Sdamien } 2275156321Sdamien} 2276156321Sdamien 2277156321Sdamienstatic int 2278156321Sdamienrt2661_bbp_init(struct rt2661_softc *sc) 2279156321Sdamien{ 2280156321Sdamien#define N(a) (sizeof (a) / sizeof ((a)[0])) 2281156321Sdamien int i, ntries; 2282156321Sdamien uint8_t val; 2283156321Sdamien 2284156321Sdamien /* wait for BBP to be ready */ 2285156321Sdamien for (ntries = 0; ntries < 100; ntries++) { 2286156321Sdamien val = rt2661_bbp_read(sc, 0); 2287156321Sdamien if (val != 0 && val != 0xff) 2288156321Sdamien break; 2289156321Sdamien DELAY(100); 2290156321Sdamien } 2291156321Sdamien if (ntries == 100) { 2292156321Sdamien device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2293156321Sdamien return EIO; 2294156321Sdamien } 2295156321Sdamien 2296156321Sdamien /* initialize BBP registers to default values */ 2297156321Sdamien for (i = 0; i < N(rt2661_def_bbp); i++) { 2298156321Sdamien rt2661_bbp_write(sc, rt2661_def_bbp[i].reg, 2299156321Sdamien rt2661_def_bbp[i].val); 2300156321Sdamien } 2301156321Sdamien 2302156321Sdamien /* write vendor-specific BBP values (from EEPROM) */ 2303156321Sdamien for (i = 0; i < 16; i++) { 2304156321Sdamien if (sc->bbp_prom[i].reg == 0) 2305156321Sdamien continue; 2306156321Sdamien rt2661_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2307156321Sdamien } 2308156321Sdamien 2309156321Sdamien return 0; 2310156321Sdamien#undef N 2311156321Sdamien} 2312156321Sdamien 2313156321Sdamienstatic void 2314178354Ssamrt2661_init_locked(struct rt2661_softc *sc) 2315156321Sdamien{ 2316156321Sdamien#define N(a) (sizeof (a) / sizeof ((a)[0])) 2317178354Ssam struct ifnet *ifp = sc->sc_ifp; 2318178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2319156321Sdamien uint32_t tmp, sta[3]; 2320178354Ssam int i, error, ntries; 2321156321Sdamien 2322178354Ssam RAL_LOCK_ASSERT(sc); 2323156975Sdamien 2324178354Ssam if ((sc->sc_flags & RAL_FW_LOADED) == 0) { 2325178354Ssam error = rt2661_load_microcode(sc); 2326178354Ssam if (error != 0) { 2327178354Ssam if_printf(ifp, 2328178354Ssam "%s: could not load 8051 microcode, error %d\n", 2329178354Ssam __func__, error); 2330178354Ssam return; 2331178354Ssam } 2332178354Ssam sc->sc_flags |= RAL_FW_LOADED; 2333178354Ssam } 2334178354Ssam 2335170530Ssam rt2661_stop_locked(sc); 2336156321Sdamien 2337156321Sdamien /* initialize Tx rings */ 2338156321Sdamien RAL_WRITE(sc, RT2661_AC1_BASE_CSR, sc->txq[1].physaddr); 2339156321Sdamien RAL_WRITE(sc, RT2661_AC0_BASE_CSR, sc->txq[0].physaddr); 2340156321Sdamien RAL_WRITE(sc, RT2661_AC2_BASE_CSR, sc->txq[2].physaddr); 2341156321Sdamien RAL_WRITE(sc, RT2661_AC3_BASE_CSR, sc->txq[3].physaddr); 2342156321Sdamien 2343156321Sdamien /* initialize Mgt ring */ 2344156321Sdamien RAL_WRITE(sc, RT2661_MGT_BASE_CSR, sc->mgtq.physaddr); 2345156321Sdamien 2346156321Sdamien /* initialize Rx ring */ 2347156321Sdamien RAL_WRITE(sc, RT2661_RX_BASE_CSR, sc->rxq.physaddr); 2348156321Sdamien 2349156321Sdamien /* initialize Tx rings sizes */ 2350156321Sdamien RAL_WRITE(sc, RT2661_TX_RING_CSR0, 2351156321Sdamien RT2661_TX_RING_COUNT << 24 | 2352156321Sdamien RT2661_TX_RING_COUNT << 16 | 2353156321Sdamien RT2661_TX_RING_COUNT << 8 | 2354156321Sdamien RT2661_TX_RING_COUNT); 2355156321Sdamien 2356156321Sdamien RAL_WRITE(sc, RT2661_TX_RING_CSR1, 2357156321Sdamien RT2661_TX_DESC_WSIZE << 16 | 2358156321Sdamien RT2661_TX_RING_COUNT << 8 | /* XXX: HCCA ring unused */ 2359156321Sdamien RT2661_MGT_RING_COUNT); 2360156321Sdamien 2361156321Sdamien /* initialize Rx rings */ 2362156321Sdamien RAL_WRITE(sc, RT2661_RX_RING_CSR, 2363156321Sdamien RT2661_RX_DESC_BACK << 16 | 2364156321Sdamien RT2661_RX_DESC_WSIZE << 8 | 2365156321Sdamien RT2661_RX_RING_COUNT); 2366156321Sdamien 2367156321Sdamien /* XXX: some magic here */ 2368156321Sdamien RAL_WRITE(sc, RT2661_TX_DMA_DST_CSR, 0xaa); 2369156321Sdamien 2370156321Sdamien /* load base addresses of all 5 Tx rings (4 data + 1 mgt) */ 2371156321Sdamien RAL_WRITE(sc, RT2661_LOAD_TX_RING_CSR, 0x1f); 2372156321Sdamien 2373156321Sdamien /* load base address of Rx ring */ 2374156321Sdamien RAL_WRITE(sc, RT2661_RX_CNTL_CSR, 2); 2375156321Sdamien 2376156321Sdamien /* initialize MAC registers to default values */ 2377156321Sdamien for (i = 0; i < N(rt2661_def_mac); i++) 2378156321Sdamien RAL_WRITE(sc, rt2661_def_mac[i].reg, rt2661_def_mac[i].val); 2379156321Sdamien 2380190526Ssam rt2661_set_macaddr(sc, IF_LLADDR(ifp)); 2381156321Sdamien 2382156321Sdamien /* set host ready */ 2383156321Sdamien RAL_WRITE(sc, RT2661_MAC_CSR1, 3); 2384156321Sdamien RAL_WRITE(sc, RT2661_MAC_CSR1, 0); 2385156321Sdamien 2386156321Sdamien /* wait for BBP/RF to wakeup */ 2387156321Sdamien for (ntries = 0; ntries < 1000; ntries++) { 2388156321Sdamien if (RAL_READ(sc, RT2661_MAC_CSR12) & 8) 2389156321Sdamien break; 2390156321Sdamien DELAY(1000); 2391156321Sdamien } 2392156321Sdamien if (ntries == 1000) { 2393156321Sdamien printf("timeout waiting for BBP/RF to wakeup\n"); 2394170530Ssam rt2661_stop_locked(sc); 2395156321Sdamien return; 2396156321Sdamien } 2397156321Sdamien 2398156321Sdamien if (rt2661_bbp_init(sc) != 0) { 2399170530Ssam rt2661_stop_locked(sc); 2400156321Sdamien return; 2401156321Sdamien } 2402156321Sdamien 2403156321Sdamien /* select default channel */ 2404156321Sdamien sc->sc_curchan = ic->ic_curchan; 2405156321Sdamien rt2661_select_band(sc, sc->sc_curchan); 2406156321Sdamien rt2661_select_antenna(sc); 2407156321Sdamien rt2661_set_chan(sc, sc->sc_curchan); 2408156321Sdamien 2409156321Sdamien /* update Rx filter */ 2410156321Sdamien tmp = RAL_READ(sc, RT2661_TXRX_CSR0) & 0xffff; 2411156321Sdamien 2412156321Sdamien tmp |= RT2661_DROP_PHY_ERROR | RT2661_DROP_CRC_ERROR; 2413156321Sdamien if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2414156321Sdamien tmp |= RT2661_DROP_CTL | RT2661_DROP_VER_ERROR | 2415156321Sdamien RT2661_DROP_ACKCTS; 2416195618Srpaulo if (ic->ic_opmode != IEEE80211_M_HOSTAP && 2417195618Srpaulo ic->ic_opmode != IEEE80211_M_MBSS) 2418156321Sdamien tmp |= RT2661_DROP_TODS; 2419156321Sdamien if (!(ifp->if_flags & IFF_PROMISC)) 2420156321Sdamien tmp |= RT2661_DROP_NOT_TO_ME; 2421156321Sdamien } 2422156321Sdamien 2423156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp); 2424156321Sdamien 2425156321Sdamien /* clear STA registers */ 2426156321Sdamien RAL_READ_REGION_4(sc, RT2661_STA_CSR0, sta, N(sta)); 2427156321Sdamien 2428156321Sdamien /* initialize ASIC */ 2429156321Sdamien RAL_WRITE(sc, RT2661_MAC_CSR1, 4); 2430156321Sdamien 2431156321Sdamien /* clear any pending interrupt */ 2432156321Sdamien RAL_WRITE(sc, RT2661_INT_SOURCE_CSR, 0xffffffff); 2433156321Sdamien 2434156321Sdamien /* enable interrupts */ 2435156321Sdamien RAL_WRITE(sc, RT2661_INT_MASK_CSR, 0x0000ff10); 2436156321Sdamien RAL_WRITE(sc, RT2661_MCU_INT_MASK_CSR, 0); 2437156321Sdamien 2438156321Sdamien /* kick Rx */ 2439156321Sdamien RAL_WRITE(sc, RT2661_RX_CNTL_CSR, 1); 2440156321Sdamien 2441156321Sdamien ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2442156321Sdamien ifp->if_drv_flags |= IFF_DRV_RUNNING; 2443156321Sdamien 2444178354Ssam callout_reset(&sc->watchdog_ch, hz, rt2661_watchdog, sc); 2445156975Sdamien#undef N 2446156321Sdamien} 2447156321Sdamien 2448178354Ssamstatic void 2449178354Ssamrt2661_init(void *priv) 2450156321Sdamien{ 2451156321Sdamien struct rt2661_softc *sc = priv; 2452178354Ssam struct ifnet *ifp = sc->sc_ifp; 2453178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2454170530Ssam 2455170530Ssam RAL_LOCK(sc); 2456178354Ssam rt2661_init_locked(sc); 2457170530Ssam RAL_UNLOCK(sc); 2458178354Ssam 2459178931Sthompsa if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2460178931Sthompsa ieee80211_start_all(ic); /* start all vap's */ 2461170530Ssam} 2462170530Ssam 2463170530Ssamvoid 2464170530Ssamrt2661_stop_locked(struct rt2661_softc *sc) 2465170530Ssam{ 2466178354Ssam struct ifnet *ifp = sc->sc_ifp; 2467156321Sdamien uint32_t tmp; 2468170530Ssam volatile int *flags = &sc->sc_flags; 2469156321Sdamien 2470178354Ssam while (*flags & RAL_INPUT_RUNNING) 2471170530Ssam msleep(sc, &sc->sc_mtx, 0, "ralrunning", hz/10); 2472156321Sdamien 2473178354Ssam callout_stop(&sc->watchdog_ch); 2474178354Ssam sc->sc_tx_timer = 0; 2475178354Ssam 2476170530Ssam if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 2477170530Ssam ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2478178354Ssam 2479170530Ssam /* abort Tx (for all 5 Tx rings) */ 2480170530Ssam RAL_WRITE(sc, RT2661_TX_CNTL_CSR, 0x1f << 16); 2481170530Ssam 2482170530Ssam /* disable Rx (value remains after reset!) */ 2483170530Ssam tmp = RAL_READ(sc, RT2661_TXRX_CSR0); 2484170530Ssam RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp | RT2661_DISABLE_RX); 2485170530Ssam 2486170530Ssam /* reset ASIC */ 2487170530Ssam RAL_WRITE(sc, RT2661_MAC_CSR1, 3); 2488170530Ssam RAL_WRITE(sc, RT2661_MAC_CSR1, 0); 2489170530Ssam 2490170530Ssam /* disable interrupts */ 2491170530Ssam RAL_WRITE(sc, RT2661_INT_MASK_CSR, 0xffffffff); 2492170530Ssam RAL_WRITE(sc, RT2661_MCU_INT_MASK_CSR, 0xffffffff); 2493170530Ssam 2494170530Ssam /* clear any pending interrupt */ 2495170530Ssam RAL_WRITE(sc, RT2661_INT_SOURCE_CSR, 0xffffffff); 2496170530Ssam RAL_WRITE(sc, RT2661_MCU_INT_SOURCE_CSR, 0xffffffff); 2497170530Ssam 2498170530Ssam /* reset Tx and Rx rings */ 2499170530Ssam rt2661_reset_tx_ring(sc, &sc->txq[0]); 2500170530Ssam rt2661_reset_tx_ring(sc, &sc->txq[1]); 2501170530Ssam rt2661_reset_tx_ring(sc, &sc->txq[2]); 2502170530Ssam rt2661_reset_tx_ring(sc, &sc->txq[3]); 2503170530Ssam rt2661_reset_tx_ring(sc, &sc->mgtq); 2504170530Ssam rt2661_reset_rx_ring(sc, &sc->rxq); 2505170530Ssam } 2506156321Sdamien} 2507156321Sdamien 2508178354Ssamvoid 2509178354Ssamrt2661_stop(void *priv) 2510178354Ssam{ 2511178354Ssam struct rt2661_softc *sc = priv; 2512178354Ssam 2513178354Ssam RAL_LOCK(sc); 2514178354Ssam rt2661_stop_locked(sc); 2515178354Ssam RAL_UNLOCK(sc); 2516178354Ssam} 2517178354Ssam 2518156321Sdamienstatic int 2519178354Ssamrt2661_load_microcode(struct rt2661_softc *sc) 2520156321Sdamien{ 2521178354Ssam struct ifnet *ifp = sc->sc_ifp; 2522178354Ssam const struct firmware *fp; 2523178354Ssam const char *imagename; 2524178354Ssam int ntries, error; 2525156321Sdamien 2526178354Ssam RAL_LOCK_ASSERT(sc); 2527178354Ssam 2528178354Ssam switch (sc->sc_id) { 2529178354Ssam case 0x0301: imagename = "rt2561sfw"; break; 2530178354Ssam case 0x0302: imagename = "rt2561fw"; break; 2531178354Ssam case 0x0401: imagename = "rt2661fw"; break; 2532178354Ssam default: 2533178354Ssam if_printf(ifp, "%s: unexpected pci device id 0x%x, " 2534178354Ssam "don't know how to retrieve firmware\n", 2535178354Ssam __func__, sc->sc_id); 2536178354Ssam return EINVAL; 2537178354Ssam } 2538178354Ssam RAL_UNLOCK(sc); 2539178354Ssam fp = firmware_get(imagename); 2540178354Ssam RAL_LOCK(sc); 2541178354Ssam if (fp == NULL) { 2542178354Ssam if_printf(ifp, "%s: unable to retrieve firmware image %s\n", 2543178354Ssam __func__, imagename); 2544178354Ssam return EINVAL; 2545178354Ssam } 2546178354Ssam 2547178354Ssam /* 2548178354Ssam * Load 8051 microcode into NIC. 2549178354Ssam */ 2550156321Sdamien /* reset 8051 */ 2551156321Sdamien RAL_WRITE(sc, RT2661_MCU_CNTL_CSR, RT2661_MCU_RESET); 2552156321Sdamien 2553156321Sdamien /* cancel any pending Host to MCU command */ 2554156321Sdamien RAL_WRITE(sc, RT2661_H2M_MAILBOX_CSR, 0); 2555156321Sdamien RAL_WRITE(sc, RT2661_M2H_CMD_DONE_CSR, 0xffffffff); 2556156321Sdamien RAL_WRITE(sc, RT2661_HOST_CMD_CSR, 0); 2557156321Sdamien 2558156321Sdamien /* write 8051's microcode */ 2559156321Sdamien RAL_WRITE(sc, RT2661_MCU_CNTL_CSR, RT2661_MCU_RESET | RT2661_MCU_SEL); 2560178354Ssam RAL_WRITE_REGION_1(sc, RT2661_MCU_CODE_BASE, fp->data, fp->datasize); 2561156321Sdamien RAL_WRITE(sc, RT2661_MCU_CNTL_CSR, RT2661_MCU_RESET); 2562156321Sdamien 2563156321Sdamien /* kick 8051's ass */ 2564156321Sdamien RAL_WRITE(sc, RT2661_MCU_CNTL_CSR, 0); 2565156321Sdamien 2566156321Sdamien /* wait for 8051 to initialize */ 2567156321Sdamien for (ntries = 0; ntries < 500; ntries++) { 2568156321Sdamien if (RAL_READ(sc, RT2661_MCU_CNTL_CSR) & RT2661_MCU_READY) 2569156321Sdamien break; 2570156321Sdamien DELAY(100); 2571156321Sdamien } 2572156321Sdamien if (ntries == 500) { 2573178354Ssam if_printf(ifp, "%s: timeout waiting for MCU to initialize\n", 2574178354Ssam __func__); 2575178354Ssam error = EIO; 2576178354Ssam } else 2577178354Ssam error = 0; 2578178354Ssam 2579178354Ssam firmware_put(fp, FIRMWARE_UNLOAD); 2580178354Ssam return error; 2581156321Sdamien} 2582156321Sdamien 2583156321Sdamien#ifdef notyet 2584156321Sdamien/* 2585156321Sdamien * Dynamically tune Rx sensitivity (BBP register 17) based on average RSSI and 2586156321Sdamien * false CCA count. This function is called periodically (every seconds) when 2587156321Sdamien * in the RUN state. Values taken from the reference driver. 2588156321Sdamien */ 2589156321Sdamienstatic void 2590156321Sdamienrt2661_rx_tune(struct rt2661_softc *sc) 2591156321Sdamien{ 2592156321Sdamien uint8_t bbp17; 2593156321Sdamien uint16_t cca; 2594156321Sdamien int lo, hi, dbm; 2595156321Sdamien 2596156321Sdamien /* 2597156321Sdamien * Tuning range depends on operating band and on the presence of an 2598156321Sdamien * external low-noise amplifier. 2599156321Sdamien */ 2600156321Sdamien lo = 0x20; 2601156321Sdamien if (IEEE80211_IS_CHAN_5GHZ(sc->sc_curchan)) 2602156321Sdamien lo += 0x08; 2603156321Sdamien if ((IEEE80211_IS_CHAN_2GHZ(sc->sc_curchan) && sc->ext_2ghz_lna) || 2604156321Sdamien (IEEE80211_IS_CHAN_5GHZ(sc->sc_curchan) && sc->ext_5ghz_lna)) 2605156321Sdamien lo += 0x10; 2606156321Sdamien hi = lo + 0x20; 2607156321Sdamien 2608156321Sdamien /* retrieve false CCA count since last call (clear on read) */ 2609156321Sdamien cca = RAL_READ(sc, RT2661_STA_CSR1) & 0xffff; 2610156321Sdamien 2611156321Sdamien if (dbm >= -35) { 2612156321Sdamien bbp17 = 0x60; 2613156321Sdamien } else if (dbm >= -58) { 2614156321Sdamien bbp17 = hi; 2615156321Sdamien } else if (dbm >= -66) { 2616156321Sdamien bbp17 = lo + 0x10; 2617156321Sdamien } else if (dbm >= -74) { 2618156321Sdamien bbp17 = lo + 0x08; 2619156321Sdamien } else { 2620156321Sdamien /* RSSI < -74dBm, tune using false CCA count */ 2621156321Sdamien 2622156321Sdamien bbp17 = sc->bbp17; /* current value */ 2623156321Sdamien 2624156321Sdamien hi -= 2 * (-74 - dbm); 2625156321Sdamien if (hi < lo) 2626156321Sdamien hi = lo; 2627156321Sdamien 2628156321Sdamien if (bbp17 > hi) { 2629156321Sdamien bbp17 = hi; 2630156321Sdamien 2631156321Sdamien } else if (cca > 512) { 2632156321Sdamien if (++bbp17 > hi) 2633156321Sdamien bbp17 = hi; 2634156321Sdamien } else if (cca < 100) { 2635156321Sdamien if (--bbp17 < lo) 2636156321Sdamien bbp17 = lo; 2637156321Sdamien } 2638156321Sdamien } 2639156321Sdamien 2640156321Sdamien if (bbp17 != sc->bbp17) { 2641156321Sdamien rt2661_bbp_write(sc, 17, bbp17); 2642156321Sdamien sc->bbp17 = bbp17; 2643156321Sdamien } 2644156321Sdamien} 2645156321Sdamien 2646156321Sdamien/* 2647156321Sdamien * Enter/Leave radar detection mode. 2648156321Sdamien * This is for 802.11h additional regulatory domains. 2649156321Sdamien */ 2650156321Sdamienstatic void 2651156321Sdamienrt2661_radar_start(struct rt2661_softc *sc) 2652156321Sdamien{ 2653156321Sdamien uint32_t tmp; 2654156321Sdamien 2655156321Sdamien /* disable Rx */ 2656156321Sdamien tmp = RAL_READ(sc, RT2661_TXRX_CSR0); 2657156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp | RT2661_DISABLE_RX); 2658156321Sdamien 2659156321Sdamien rt2661_bbp_write(sc, 82, 0x20); 2660156321Sdamien rt2661_bbp_write(sc, 83, 0x00); 2661156321Sdamien rt2661_bbp_write(sc, 84, 0x40); 2662156321Sdamien 2663156321Sdamien /* save current BBP registers values */ 2664156321Sdamien sc->bbp18 = rt2661_bbp_read(sc, 18); 2665156321Sdamien sc->bbp21 = rt2661_bbp_read(sc, 21); 2666156321Sdamien sc->bbp22 = rt2661_bbp_read(sc, 22); 2667156321Sdamien sc->bbp16 = rt2661_bbp_read(sc, 16); 2668156321Sdamien sc->bbp17 = rt2661_bbp_read(sc, 17); 2669156321Sdamien sc->bbp64 = rt2661_bbp_read(sc, 64); 2670156321Sdamien 2671156321Sdamien rt2661_bbp_write(sc, 18, 0xff); 2672156321Sdamien rt2661_bbp_write(sc, 21, 0x3f); 2673156321Sdamien rt2661_bbp_write(sc, 22, 0x3f); 2674156321Sdamien rt2661_bbp_write(sc, 16, 0xbd); 2675156321Sdamien rt2661_bbp_write(sc, 17, sc->ext_5ghz_lna ? 0x44 : 0x34); 2676156321Sdamien rt2661_bbp_write(sc, 64, 0x21); 2677156321Sdamien 2678156321Sdamien /* restore Rx filter */ 2679156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR0, tmp); 2680156321Sdamien} 2681156321Sdamien 2682156321Sdamienstatic int 2683156321Sdamienrt2661_radar_stop(struct rt2661_softc *sc) 2684156321Sdamien{ 2685156321Sdamien uint8_t bbp66; 2686156321Sdamien 2687156321Sdamien /* read radar detection result */ 2688156321Sdamien bbp66 = rt2661_bbp_read(sc, 66); 2689156321Sdamien 2690156321Sdamien /* restore BBP registers values */ 2691156321Sdamien rt2661_bbp_write(sc, 16, sc->bbp16); 2692156321Sdamien rt2661_bbp_write(sc, 17, sc->bbp17); 2693156321Sdamien rt2661_bbp_write(sc, 18, sc->bbp18); 2694156321Sdamien rt2661_bbp_write(sc, 21, sc->bbp21); 2695156321Sdamien rt2661_bbp_write(sc, 22, sc->bbp22); 2696156321Sdamien rt2661_bbp_write(sc, 64, sc->bbp64); 2697156321Sdamien 2698156321Sdamien return bbp66 == 1; 2699156321Sdamien} 2700156321Sdamien#endif 2701156321Sdamien 2702156321Sdamienstatic int 2703178354Ssamrt2661_prepare_beacon(struct rt2661_softc *sc, struct ieee80211vap *vap) 2704156321Sdamien{ 2705178354Ssam struct ieee80211com *ic = vap->iv_ic; 2706156321Sdamien struct ieee80211_beacon_offsets bo; 2707156321Sdamien struct rt2661_tx_desc desc; 2708156321Sdamien struct mbuf *m0; 2709156321Sdamien int rate; 2710156321Sdamien 2711178354Ssam m0 = ieee80211_beacon_alloc(vap->iv_bss, &bo); 2712156321Sdamien if (m0 == NULL) { 2713156321Sdamien device_printf(sc->sc_dev, "could not allocate beacon frame\n"); 2714156321Sdamien return ENOBUFS; 2715156321Sdamien } 2716156321Sdamien 2717156321Sdamien /* send beacons at the lowest available rate */ 2718178354Ssam rate = IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan) ? 12 : 2; 2719156321Sdamien 2720156321Sdamien rt2661_setup_tx_desc(sc, &desc, RT2661_TX_TIMESTAMP, RT2661_TX_HWSEQ, 2721156321Sdamien m0->m_pkthdr.len, rate, NULL, 0, RT2661_QID_MGT); 2722156321Sdamien 2723156321Sdamien /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2724156321Sdamien RAL_WRITE_REGION_1(sc, RT2661_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2725156321Sdamien 2726156321Sdamien /* copy beacon header and payload into NIC memory */ 2727156321Sdamien RAL_WRITE_REGION_1(sc, RT2661_HW_BEACON_BASE0 + 24, 2728156321Sdamien mtod(m0, uint8_t *), m0->m_pkthdr.len); 2729156321Sdamien 2730156321Sdamien m_freem(m0); 2731156321Sdamien 2732156321Sdamien return 0; 2733156321Sdamien} 2734156321Sdamien 2735156321Sdamien/* 2736156321Sdamien * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 2737156321Sdamien * and HostAP operating modes. 2738156321Sdamien */ 2739156321Sdamienstatic void 2740156321Sdamienrt2661_enable_tsf_sync(struct rt2661_softc *sc) 2741156321Sdamien{ 2742178354Ssam struct ifnet *ifp = sc->sc_ifp; 2743178354Ssam struct ieee80211com *ic = ifp->if_l2com; 2744178354Ssam struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2745156321Sdamien uint32_t tmp; 2746156321Sdamien 2747178354Ssam if (vap->iv_opmode != IEEE80211_M_STA) { 2748156321Sdamien /* 2749156321Sdamien * Change default 16ms TBTT adjustment to 8ms. 2750156321Sdamien * Must be done before enabling beacon generation. 2751156321Sdamien */ 2752156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR10, 1 << 12 | 8); 2753156321Sdamien } 2754156321Sdamien 2755156321Sdamien tmp = RAL_READ(sc, RT2661_TXRX_CSR9) & 0xff000000; 2756156321Sdamien 2757156321Sdamien /* set beacon interval (in 1/16ms unit) */ 2758178354Ssam tmp |= vap->iv_bss->ni_intval * 16; 2759156321Sdamien 2760156321Sdamien tmp |= RT2661_TSF_TICKING | RT2661_ENABLE_TBTT; 2761178354Ssam if (vap->iv_opmode == IEEE80211_M_STA) 2762156321Sdamien tmp |= RT2661_TSF_MODE(1); 2763156321Sdamien else 2764156321Sdamien tmp |= RT2661_TSF_MODE(2) | RT2661_GENERATE_BEACON; 2765156321Sdamien 2766156321Sdamien RAL_WRITE(sc, RT2661_TXRX_CSR9, tmp); 2767156321Sdamien} 2768156321Sdamien 2769192468Ssamstatic void 2770192468Ssamrt2661_enable_tsf(struct rt2661_softc *sc) 2771192468Ssam{ 2772192468Ssam RAL_WRITE(sc, RT2661_TXRX_CSR9, 2773192468Ssam (RAL_READ(sc, RT2661_TXRX_CSR9) & 0xff000000) 2774192468Ssam | RT2661_TSF_TICKING | RT2661_TSF_MODE(2)); 2775192468Ssam} 2776192468Ssam 2777156321Sdamien/* 2778156321Sdamien * Retrieve the "Received Signal Strength Indicator" from the raw values 2779156321Sdamien * contained in Rx descriptors. The computation depends on which band the 2780156321Sdamien * frame was received. Correction values taken from the reference driver. 2781156321Sdamien */ 2782156321Sdamienstatic int 2783156321Sdamienrt2661_get_rssi(struct rt2661_softc *sc, uint8_t raw) 2784156321Sdamien{ 2785156321Sdamien int lna, agc, rssi; 2786156321Sdamien 2787156321Sdamien lna = (raw >> 5) & 0x3; 2788156321Sdamien agc = raw & 0x1f; 2789156321Sdamien 2790170530Ssam if (lna == 0) { 2791170530Ssam /* 2792170530Ssam * No mapping available. 2793170530Ssam * 2794170530Ssam * NB: Since RSSI is relative to noise floor, -1 is 2795170530Ssam * adequate for caller to know error happened. 2796170530Ssam */ 2797170530Ssam return -1; 2798170530Ssam } 2799156321Sdamien 2800170530Ssam rssi = (2 * agc) - RT2661_NOISE_FLOOR; 2801170530Ssam 2802156321Sdamien if (IEEE80211_IS_CHAN_2GHZ(sc->sc_curchan)) { 2803156321Sdamien rssi += sc->rssi_2ghz_corr; 2804156321Sdamien 2805156321Sdamien if (lna == 1) 2806156321Sdamien rssi -= 64; 2807156321Sdamien else if (lna == 2) 2808156321Sdamien rssi -= 74; 2809156321Sdamien else if (lna == 3) 2810156321Sdamien rssi -= 90; 2811156321Sdamien } else { 2812156321Sdamien rssi += sc->rssi_5ghz_corr; 2813156321Sdamien 2814156321Sdamien if (lna == 1) 2815156321Sdamien rssi -= 64; 2816156321Sdamien else if (lna == 2) 2817156321Sdamien rssi -= 86; 2818156321Sdamien else if (lna == 3) 2819156321Sdamien rssi -= 100; 2820156321Sdamien } 2821156321Sdamien return rssi; 2822156321Sdamien} 2823170530Ssam 2824170530Ssamstatic void 2825170530Ssamrt2661_scan_start(struct ieee80211com *ic) 2826170530Ssam{ 2827170530Ssam struct ifnet *ifp = ic->ic_ifp; 2828170530Ssam struct rt2661_softc *sc = ifp->if_softc; 2829170530Ssam uint32_t tmp; 2830170530Ssam 2831170530Ssam /* abort TSF synchronization */ 2832170530Ssam tmp = RAL_READ(sc, RT2661_TXRX_CSR9); 2833170530Ssam RAL_WRITE(sc, RT2661_TXRX_CSR9, tmp & ~0xffffff); 2834170530Ssam rt2661_set_bssid(sc, ifp->if_broadcastaddr); 2835170530Ssam} 2836170530Ssam 2837170530Ssamstatic void 2838170530Ssamrt2661_scan_end(struct ieee80211com *ic) 2839170530Ssam{ 2840170530Ssam struct ifnet *ifp = ic->ic_ifp; 2841170530Ssam struct rt2661_softc *sc = ifp->if_softc; 2842178354Ssam struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2843170530Ssam 2844170530Ssam rt2661_enable_tsf_sync(sc); 2845170530Ssam /* XXX keep local copy */ 2846178354Ssam rt2661_set_bssid(sc, vap->iv_bss->ni_bssid); 2847170530Ssam} 2848170530Ssam 2849170530Ssamstatic void 2850170530Ssamrt2661_set_channel(struct ieee80211com *ic) 2851170530Ssam{ 2852170530Ssam struct ifnet *ifp = ic->ic_ifp; 2853170530Ssam struct rt2661_softc *sc = ifp->if_softc; 2854170530Ssam 2855170530Ssam RAL_LOCK(sc); 2856170530Ssam rt2661_set_chan(sc, ic->ic_curchan); 2857170530Ssam RAL_UNLOCK(sc); 2858170530Ssam 2859170530Ssam} 2860