sys/dev/usb/wlan/if_rum.c

   1 /*      $FreeBSD$       */
   2
   3 /*-
   4  * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr>
   5  * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
   6  * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org>
   7  * Copyright (c) 2015 Andriy Voskoboinyk <avos@FreeBSD.org>
   8  *
   9  * Permission to use, copy, modify, and distribute this software for any
  10  * purpose with or without fee is hereby granted, provided that the above
  11  * copyright notice and this permission notice appear in all copies.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  14  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  15  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  16  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  17  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  18  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  19  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  20  */
  21
  22 #include <sys/cdefs.h>
  23 __FBSDID("$FreeBSD$");
  24
  25 /*-
  26  * Ralink Technology RT2501USB/RT2601USB chipset driver
  27  * http://www.ralinktech.com.tw/
  28  */
  29
  30 #include "opt_wlan.h"
  31
  32 #include <sys/param.h>
  33 #include <sys/sockio.h>
  34 #include <sys/sysctl.h>
  35 #include <sys/lock.h>
  36 #include <sys/mutex.h>
  37 #include <sys/mbuf.h>
  38 #include <sys/kernel.h>
  39 #include <sys/socket.h>
  40 #include <sys/systm.h>
  41 #include <sys/malloc.h>
  42 #include <sys/module.h>
  43 #include <sys/bus.h>
  44 #include <sys/endian.h>
  45 #include <sys/kdb.h>
  46
  47 #include <machine/bus.h>
  48 #include <machine/resource.h>
  49 #include <sys/rman.h>
  50
  51 #include <net/bpf.h>
  52 #include <net/if.h>
  53 #include <net/if_var.h>
  54 #include <net/if_arp.h>
  55 #include <net/ethernet.h>
  56 #include <net/if_dl.h>
  57 #include <net/if_media.h>
  58 #include <net/if_types.h>
  59
  60 #ifdef INET
  61 #include <netinet/in.h>
  62 #include <netinet/in_systm.h>
  63 #include <netinet/in_var.h>
  64 #include <netinet/if_ether.h>
  65 #include <netinet/ip.h>
  66 #endif
  67
  68 #include <net80211/ieee80211_var.h>
  69 #include <net80211/ieee80211_regdomain.h>
  70 #include <net80211/ieee80211_radiotap.h>
  71 #include <net80211/ieee80211_ratectl.h>
  72
  73 #include <dev/usb/usb.h>
  74 #include <dev/usb/usbdi.h>
  75 #include "usbdevs.h"
  76
  77 #define USB_DEBUG_VAR rum_debug
  78 #include <dev/usb/usb_debug.h>
  79
  80 #include <dev/usb/wlan/if_rumreg.h>
  81 #include <dev/usb/wlan/if_rumvar.h>
  82 #include <dev/usb/wlan/if_rumfw.h>
  83
  84 #ifdef USB_DEBUG
  85 static int rum_debug = 0;
  86
  87 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum");
  88 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0,
  89     "Debug level");
  90 #endif
  91
  92 static const STRUCT_USB_HOST_ID rum_devs[] = {
  93 #define RUM_DEV(v,p)  { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
  94     RUM_DEV(ABOCOM, HWU54DM),
  95     RUM_DEV(ABOCOM, RT2573_2),
  96     RUM_DEV(ABOCOM, RT2573_3),
  97     RUM_DEV(ABOCOM, RT2573_4),
  98     RUM_DEV(ABOCOM, WUG2700),
  99     RUM_DEV(AMIT, CGWLUSB2GO),
 100     RUM_DEV(ASUS, RT2573_1),
 101     RUM_DEV(ASUS, RT2573_2),
 102     RUM_DEV(BELKIN, F5D7050A),
 103     RUM_DEV(BELKIN, F5D9050V3),
 104     RUM_DEV(CISCOLINKSYS, WUSB54GC),
 105     RUM_DEV(CISCOLINKSYS, WUSB54GR),
 106     RUM_DEV(CONCEPTRONIC2, C54RU2),
 107     RUM_DEV(COREGA, CGWLUSB2GL),
 108     RUM_DEV(COREGA, CGWLUSB2GPX),
 109     RUM_DEV(DICKSMITH, CWD854F),
 110     RUM_DEV(DICKSMITH, RT2573),
 111     RUM_DEV(EDIMAX, EW7318USG),
 112     RUM_DEV(DLINK2, DWLG122C1),
 113     RUM_DEV(DLINK2, WUA1340),
 114     RUM_DEV(DLINK2, DWA111),
 115     RUM_DEV(DLINK2, DWA110),
 116     RUM_DEV(GIGABYTE, GNWB01GS),
 117     RUM_DEV(GIGABYTE, GNWI05GS),
 118     RUM_DEV(GIGASET, RT2573),
 119     RUM_DEV(GOODWAY, RT2573),
 120     RUM_DEV(GUILLEMOT, HWGUSB254LB),
 121     RUM_DEV(GUILLEMOT, HWGUSB254V2AP),
 122     RUM_DEV(HUAWEI3COM, WUB320G),
 123     RUM_DEV(MELCO, G54HP),
 124     RUM_DEV(MELCO, SG54HP),
 125     RUM_DEV(MELCO, SG54HG),
 126     RUM_DEV(MELCO, WLIUCG),
 127     RUM_DEV(MELCO, WLRUCG),
 128     RUM_DEV(MELCO, WLRUCGAOSS),
 129     RUM_DEV(MSI, RT2573_1),
 130     RUM_DEV(MSI, RT2573_2),
 131     RUM_DEV(MSI, RT2573_3),
 132     RUM_DEV(MSI, RT2573_4),
 133     RUM_DEV(NOVATECH, RT2573),
 134     RUM_DEV(PLANEX2, GWUS54HP),
 135     RUM_DEV(PLANEX2, GWUS54MINI2),
 136     RUM_DEV(PLANEX2, GWUSMM),
 137     RUM_DEV(QCOM, RT2573),
 138     RUM_DEV(QCOM, RT2573_2),
 139     RUM_DEV(QCOM, RT2573_3),
 140     RUM_DEV(RALINK, RT2573),
 141     RUM_DEV(RALINK, RT2573_2),
 142     RUM_DEV(RALINK, RT2671),
 143     RUM_DEV(SITECOMEU, WL113R2),
 144     RUM_DEV(SITECOMEU, WL172),
 145     RUM_DEV(SPARKLAN, RT2573),
 146     RUM_DEV(SURECOM, RT2573),
 147 #undef RUM_DEV
 148 };
 149
 150 static device_probe_t rum_match;
 151 static device_attach_t rum_attach;
 152 static device_detach_t rum_detach;
 153
 154 static usb_callback_t rum_bulk_read_callback;
 155 static usb_callback_t rum_bulk_write_callback;
 156
 157 static usb_error_t      rum_do_request(struct rum_softc *sc,
 158                             struct usb_device_request *req, void *data);
 159 static usb_error_t      rum_do_mcu_request(struct rum_softc *sc, int);
 160 static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
 161                             const char [IFNAMSIZ], int, enum ieee80211_opmode,
 162                             int, const uint8_t [IEEE80211_ADDR_LEN],
 163                             const uint8_t [IEEE80211_ADDR_LEN]);
 164 static void             rum_vap_delete(struct ieee80211vap *);
 165 static void             rum_cmdq_cb(void *, int);
 166 static int              rum_cmd_sleepable(struct rum_softc *, const void *,
 167                             size_t, uint8_t, CMD_FUNC_PROTO);
 168 static void             rum_tx_free(struct rum_tx_data *, int);
 169 static void             rum_setup_tx_list(struct rum_softc *);
 170 static void             rum_reset_tx_list(struct rum_softc *,
 171                             struct ieee80211vap *);
 172 static void             rum_unsetup_tx_list(struct rum_softc *);
 173 static void             rum_beacon_miss(struct ieee80211vap *);
 174 static void             rum_sta_recv_mgmt(struct ieee80211_node *,
 175                             struct mbuf *, int,
 176                             const struct ieee80211_rx_stats *, int, int);
 177 static int              rum_set_power_state(struct rum_softc *, int);
 178 static int              rum_newstate(struct ieee80211vap *,
 179                             enum ieee80211_state, int);
 180 static uint8_t          rum_crypto_mode(struct rum_softc *, u_int, int);
 181 static void             rum_setup_tx_desc(struct rum_softc *,
 182                             struct rum_tx_desc *, struct ieee80211_key *,
 183                             uint32_t, uint8_t, uint8_t, int, int, int);
 184 static uint32_t         rum_tx_crypto_flags(struct rum_softc *,
 185                             struct ieee80211_node *,
 186                             const struct ieee80211_key *);
 187 static int              rum_tx_mgt(struct rum_softc *, struct mbuf *,
 188                             struct ieee80211_node *);
 189 static int              rum_tx_raw(struct rum_softc *, struct mbuf *,
 190                             struct ieee80211_node *,
 191                             const struct ieee80211_bpf_params *);
 192 static int              rum_tx_data(struct rum_softc *, struct mbuf *,
 193                             struct ieee80211_node *);
 194 static int              rum_transmit(struct ieee80211com *, struct mbuf *);
 195 static void             rum_start(struct rum_softc *);
 196 static void             rum_parent(struct ieee80211com *);
 197 static void             rum_eeprom_read(struct rum_softc *, uint16_t, void *,
 198                             int);
 199 static uint32_t         rum_read(struct rum_softc *, uint16_t);
 200 static void             rum_read_multi(struct rum_softc *, uint16_t, void *,
 201                             int);
 202 static usb_error_t      rum_write(struct rum_softc *, uint16_t, uint32_t);
 203 static usb_error_t      rum_write_multi(struct rum_softc *, uint16_t, void *,
 204                             size_t);
 205 static usb_error_t      rum_setbits(struct rum_softc *, uint16_t, uint32_t);
 206 static usb_error_t      rum_clrbits(struct rum_softc *, uint16_t, uint32_t);
 207 static usb_error_t      rum_modbits(struct rum_softc *, uint16_t, uint32_t,
 208                             uint32_t);
 209 static int              rum_bbp_busy(struct rum_softc *);
 210 static void             rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
 211 static uint8_t          rum_bbp_read(struct rum_softc *, uint8_t);
 212 static void             rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
 213 static void             rum_select_antenna(struct rum_softc *);
 214 static void             rum_enable_mrr(struct rum_softc *);
 215 static void             rum_set_txpreamble(struct rum_softc *);
 216 static void             rum_set_basicrates(struct rum_softc *);
 217 static void             rum_select_band(struct rum_softc *,
 218                             struct ieee80211_channel *);
 219 static void             rum_set_chan(struct rum_softc *,
 220                             struct ieee80211_channel *);
 221 static void             rum_set_maxretry(struct rum_softc *,
 222                             struct ieee80211vap *);
 223 static int              rum_enable_tsf_sync(struct rum_softc *);
 224 static void             rum_enable_tsf(struct rum_softc *);
 225 static void             rum_abort_tsf_sync(struct rum_softc *);
 226 static void             rum_get_tsf(struct rum_softc *, uint64_t *);
 227 static void             rum_update_slot_cb(struct rum_softc *,
 228                             union sec_param *, uint8_t);
 229 static void             rum_update_slot(struct ieee80211com *);
 230 static int              rum_wme_update(struct ieee80211com *);
 231 static void             rum_set_bssid(struct rum_softc *, const uint8_t *);
 232 static void             rum_set_macaddr(struct rum_softc *, const uint8_t *);
 233 static void             rum_update_mcast(struct ieee80211com *);
 234 static void             rum_update_promisc(struct ieee80211com *);
 235 static void             rum_setpromisc(struct rum_softc *);
 236 static const char       *rum_get_rf(int);
 237 static void             rum_read_eeprom(struct rum_softc *);
 238 static int              rum_bbp_wakeup(struct rum_softc *);
 239 static int              rum_bbp_init(struct rum_softc *);
 240 static void             rum_clr_shkey_regs(struct rum_softc *);
 241 static int              rum_init(struct rum_softc *);
 242 static void             rum_stop(struct rum_softc *);
 243 static void             rum_load_microcode(struct rum_softc *, const uint8_t *,
 244                             size_t);
 245 static int              rum_set_sleep_time(struct rum_softc *, uint16_t);
 246 static int              rum_reset(struct ieee80211vap *, u_long);
 247 static int              rum_set_beacon(struct rum_softc *,
 248                             struct ieee80211vap *);
 249 static int              rum_alloc_beacon(struct rum_softc *,
 250                             struct ieee80211vap *);
 251 static void             rum_update_beacon_cb(struct rum_softc *,
 252                             union sec_param *, uint8_t);
 253 static void             rum_update_beacon(struct ieee80211vap *, int);
 254 static int              rum_common_key_set(struct rum_softc *,
 255                             struct ieee80211_key *, uint16_t);
 256 static void             rum_group_key_set_cb(struct rum_softc *,
 257                             union sec_param *, uint8_t);
 258 static void             rum_group_key_del_cb(struct rum_softc *,
 259                             union sec_param *, uint8_t);
 260 static void             rum_pair_key_set_cb(struct rum_softc *,
 261                             union sec_param *, uint8_t);
 262 static void             rum_pair_key_del_cb(struct rum_softc *,
 263                             union sec_param *, uint8_t);
 264 static int              rum_key_alloc(struct ieee80211vap *,
 265                             struct ieee80211_key *, ieee80211_keyix *,
 266                             ieee80211_keyix *);
 267 static int              rum_key_set(struct ieee80211vap *,
 268                             const struct ieee80211_key *);
 269 static int              rum_key_delete(struct ieee80211vap *,
 270                             const struct ieee80211_key *);
 271 static int              rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
 272                             const struct ieee80211_bpf_params *);
 273 static void             rum_scan_start(struct ieee80211com *);
 274 static void             rum_scan_end(struct ieee80211com *);
 275 static void             rum_set_channel(struct ieee80211com *);
 276 static void             rum_getradiocaps(struct ieee80211com *, int, int *,
 277                             struct ieee80211_channel[]);
 278 static int              rum_get_rssi(struct rum_softc *, uint8_t);
 279 static void             rum_ratectl_start(struct rum_softc *,
 280                             struct ieee80211_node *);
 281 static void             rum_ratectl_timeout(void *);
 282 static void             rum_ratectl_task(void *, int);
 283 static int              rum_pause(struct rum_softc *, int);
 284
 285 static const struct {
 286         uint32_t        reg;
 287         uint32_t        val;
 288 } rum_def_mac[] = {
 289         { RT2573_TXRX_CSR0,  0x025fb032 },
 290         { RT2573_TXRX_CSR1,  0x9eaa9eaf },
 291         { RT2573_TXRX_CSR2,  0x8a8b8c8d },
 292         { RT2573_TXRX_CSR3,  0x00858687 },
 293         { RT2573_TXRX_CSR7,  0x2e31353b },
 294         { RT2573_TXRX_CSR8,  0x2a2a2a2c },
 295         { RT2573_TXRX_CSR15, 0x0000000f },
 296         { RT2573_MAC_CSR6,   0x00000fff },
 297         { RT2573_MAC_CSR8,   0x016c030a },
 298         { RT2573_MAC_CSR10,  0x00000718 },
 299         { RT2573_MAC_CSR12,  0x00000004 },
 300         { RT2573_MAC_CSR13,  0x00007f00 },
 301         { RT2573_SEC_CSR2,   0x00000000 },
 302         { RT2573_SEC_CSR3,   0x00000000 },
 303         { RT2573_SEC_CSR4,   0x00000000 },
 304         { RT2573_PHY_CSR1,   0x000023b0 },
 305         { RT2573_PHY_CSR5,   0x00040a06 },
 306         { RT2573_PHY_CSR6,   0x00080606 },
 307         { RT2573_PHY_CSR7,   0x00000408 },
 308         { RT2573_AIFSN_CSR,  0x00002273 },
 309         { RT2573_CWMIN_CSR,  0x00002344 },
 310         { RT2573_CWMAX_CSR,  0x000034aa }
 311 };
 312
 313 static const struct {
 314         uint8_t reg;
 315         uint8_t val;
 316 } rum_def_bbp[] = {
 317         {   3, 0x80 },
 318         {  15, 0x30 },
 319         {  17, 0x20 },
 320         {  21, 0xc8 },
 321         {  22, 0x38 },
 322         {  23, 0x06 },
 323         {  24, 0xfe },
 324         {  25, 0x0a },
 325         {  26, 0x0d },
 326         {  32, 0x0b },
 327         {  34, 0x12 },
 328         {  37, 0x07 },
 329         {  39, 0xf8 },
 330         {  41, 0x60 },
 331         {  53, 0x10 },
 332         {  54, 0x18 },
 333         {  60, 0x10 },
 334         {  61, 0x04 },
 335         {  62, 0x04 },
 336         {  75, 0xfe },
 337         {  86, 0xfe },
 338         {  88, 0xfe },
 339         {  90, 0x0f },
 340         {  99, 0x00 },
 341         { 102, 0x16 },
 342         { 107, 0x04 }
 343 };
 344
 345 static const uint8_t rum_chan_2ghz[] =
 346         { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 };
 347
 348 static const uint8_t rum_chan_5ghz[] =
 349         { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64,
 350           100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
 351           149, 153, 157, 161, 165 };
 352
 353 static const struct rfprog {
 354         uint8_t         chan;
 355         uint32_t        r1, r2, r3, r4;
 356 }  rum_rf5226[] = {
 357         {   1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
 358         {   2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
 359         {   3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
 360         {   4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
 361         {   5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
 362         {   6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
 363         {   7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
 364         {   8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
 365         {   9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
 366         {  10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
 367         {  11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
 368         {  12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
 369         {  13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
 370         {  14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
 371
 372         {  34, 0x00b03, 0x20266, 0x36014, 0x30282 },
 373         {  38, 0x00b03, 0x20267, 0x36014, 0x30284 },
 374         {  42, 0x00b03, 0x20268, 0x36014, 0x30286 },
 375         {  46, 0x00b03, 0x20269, 0x36014, 0x30288 },
 376
 377         {  36, 0x00b03, 0x00266, 0x26014, 0x30288 },
 378         {  40, 0x00b03, 0x00268, 0x26014, 0x30280 },
 379         {  44, 0x00b03, 0x00269, 0x26014, 0x30282 },
 380         {  48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
 381         {  52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
 382         {  56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
 383         {  60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
 384         {  64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
 385
 386         { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
 387         { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
 388         { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
 389         { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
 390         { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
 391         { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
 392         { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
 393         { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
 394         { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
 395         { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
 396         { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
 397
 398         { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
 399         { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
 400         { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
 401         { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
 402         { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
 403 }, rum_rf5225[] = {
 404         {   1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
 405         {   2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
 406         {   3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
 407         {   4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
 408         {   5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
 409         {   6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
 410         {   7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
 411         {   8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
 412         {   9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
 413         {  10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
 414         {  11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
 415         {  12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
 416         {  13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
 417         {  14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
 418
 419         {  34, 0x00b33, 0x01266, 0x26014, 0x30282 },
 420         {  38, 0x00b33, 0x01267, 0x26014, 0x30284 },
 421         {  42, 0x00b33, 0x01268, 0x26014, 0x30286 },
 422         {  46, 0x00b33, 0x01269, 0x26014, 0x30288 },
 423
 424         {  36, 0x00b33, 0x01266, 0x26014, 0x30288 },
 425         {  40, 0x00b33, 0x01268, 0x26014, 0x30280 },
 426         {  44, 0x00b33, 0x01269, 0x26014, 0x30282 },
 427         {  48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
 428         {  52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
 429         {  56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
 430         {  60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
 431         {  64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
 432
 433         { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
 434         { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
 435         { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
 436         { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
 437         { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
 438         { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
 439         { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
 440         { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
 441         { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
 442         { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
 443         { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
 444
 445         { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
 446         { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
 447         { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
 448         { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
 449         { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
 450 };
 451
 452 static const struct usb_config rum_config[RUM_N_TRANSFER] = {
 453         [RUM_BULK_WR] = {
 454                 .type = UE_BULK,
 455                 .endpoint = UE_ADDR_ANY,
 456                 .direction = UE_DIR_OUT,
 457                 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
 458                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 459                 .callback = rum_bulk_write_callback,
 460                 .timeout = 5000,        /* ms */
 461         },
 462         [RUM_BULK_RD] = {
 463                 .type = UE_BULK,
 464                 .endpoint = UE_ADDR_ANY,
 465                 .direction = UE_DIR_IN,
 466                 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
 467                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 468                 .callback = rum_bulk_read_callback,
 469         },
 470 };
 471
 472 static int
 473 rum_match(device_t self)
 474 {
 475         struct usb_attach_arg *uaa = device_get_ivars(self);
 476
 477         if (uaa->usb_mode != USB_MODE_HOST)
 478                 return (ENXIO);
 479         if (uaa->info.bConfigIndex != 0)
 480                 return (ENXIO);
 481         if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
 482                 return (ENXIO);
 483
 484         return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
 485 }
 486
 487 static int
 488 rum_attach(device_t self)
 489 {
 490         struct usb_attach_arg *uaa = device_get_ivars(self);
 491         struct rum_softc *sc = device_get_softc(self);
 492         struct ieee80211com *ic = &sc->sc_ic;
 493         uint32_t tmp;
 494         uint8_t iface_index;
 495         int error, ntries;
 496
 497         device_set_usb_desc(self);
 498         sc->sc_udev = uaa->device;
 499         sc->sc_dev = self;
 500
 501         RUM_LOCK_INIT(sc);
 502         RUM_CMDQ_LOCK_INIT(sc);
 503         mbufq_init(&sc->sc_snd, ifqmaxlen);
 504
 505         iface_index = RT2573_IFACE_INDEX;
 506         error = usbd_transfer_setup(uaa->device, &iface_index,
 507             sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
 508         if (error) {
 509                 device_printf(self, "could not allocate USB transfers, "
 510                     "err=%s\n", usbd_errstr(error));
 511                 goto detach;
 512         }
 513
 514         RUM_LOCK(sc);
 515         /* retrieve RT2573 rev. no */
 516         for (ntries = 0; ntries < 100; ntries++) {
 517                 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
 518                         break;
 519                 if (rum_pause(sc, hz / 100))
 520                         break;
 521         }
 522         if (ntries == 100) {
 523                 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
 524                 RUM_UNLOCK(sc);
 525                 goto detach;
 526         }
 527
 528         /* retrieve MAC address and various other things from EEPROM */
 529         rum_read_eeprom(sc);
 530
 531         device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
 532             tmp, rum_get_rf(sc->rf_rev));
 533
 534         rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
 535         RUM_UNLOCK(sc);
 536
 537         ic->ic_softc = sc;
 538         ic->ic_name = device_get_nameunit(self);
 539         ic->ic_phytype = IEEE80211_T_OFDM;      /* not only, but not used */
 540
 541         /* set device capabilities */
 542         ic->ic_caps =
 543               IEEE80211_C_STA           /* station mode supported */
 544             | IEEE80211_C_IBSS          /* IBSS mode supported */
 545             | IEEE80211_C_MONITOR       /* monitor mode supported */
 546             | IEEE80211_C_HOSTAP        /* HostAp mode supported */
 547             | IEEE80211_C_AHDEMO        /* adhoc demo mode */
 548             | IEEE80211_C_TXPMGT        /* tx power management */
 549             | IEEE80211_C_SHPREAMBLE    /* short preamble supported */
 550             | IEEE80211_C_SHSLOT        /* short slot time supported */
 551             | IEEE80211_C_BGSCAN        /* bg scanning supported */
 552             | IEEE80211_C_WPA           /* 802.11i */
 553             | IEEE80211_C_WME           /* 802.11e */
 554             | IEEE80211_C_PMGT          /* Station-side power mgmt */
 555             | IEEE80211_C_SWSLEEP       /* net80211 managed power mgmt */
 556             ;
 557
 558         ic->ic_cryptocaps =
 559             IEEE80211_CRYPTO_WEP |
 560             IEEE80211_CRYPTO_AES_CCM |
 561             IEEE80211_CRYPTO_TKIPMIC |
 562             IEEE80211_CRYPTO_TKIP;
 563
 564         rum_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
 565             ic->ic_channels);
 566
 567         ieee80211_ifattach(ic);
 568         ic->ic_update_promisc = rum_update_promisc;
 569         ic->ic_raw_xmit = rum_raw_xmit;
 570         ic->ic_scan_start = rum_scan_start;
 571         ic->ic_scan_end = rum_scan_end;
 572         ic->ic_set_channel = rum_set_channel;
 573         ic->ic_getradiocaps = rum_getradiocaps;
 574         ic->ic_transmit = rum_transmit;
 575         ic->ic_parent = rum_parent;
 576         ic->ic_vap_create = rum_vap_create;
 577         ic->ic_vap_delete = rum_vap_delete;
 578         ic->ic_updateslot = rum_update_slot;
 579         ic->ic_wme.wme_update = rum_wme_update;
 580         ic->ic_update_mcast = rum_update_mcast;
 581
 582         ieee80211_radiotap_attach(ic,
 583             &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
 584                 RT2573_TX_RADIOTAP_PRESENT,
 585             &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
 586                 RT2573_RX_RADIOTAP_PRESENT);
 587
 588         TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc);
 589
 590         if (bootverbose)
 591                 ieee80211_announce(ic);
 592
 593         return (0);
 594
 595 detach:
 596         rum_detach(self);
 597         return (ENXIO);                 /* failure */
 598 }
 599
 600 static int
 601 rum_detach(device_t self)
 602 {
 603         struct rum_softc *sc = device_get_softc(self);
 604         struct ieee80211com *ic = &sc->sc_ic;
 605
 606         /* Prevent further ioctls */
 607         RUM_LOCK(sc);
 608         sc->sc_detached = 1;
 609         RUM_UNLOCK(sc);
 610
 611         /* stop all USB transfers */
 612         usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
 613
 614         /* free TX list, if any */
 615         RUM_LOCK(sc);
 616         rum_unsetup_tx_list(sc);
 617         RUM_UNLOCK(sc);
 618
 619         if (ic->ic_softc == sc) {
 620                 ieee80211_draintask(ic, &sc->cmdq_task);
 621                 ieee80211_ifdetach(ic);
 622         }
 623
 624         mbufq_drain(&sc->sc_snd);
 625         RUM_CMDQ_LOCK_DESTROY(sc);
 626         RUM_LOCK_DESTROY(sc);
 627
 628         return (0);
 629 }
 630
 631 static usb_error_t
 632 rum_do_request(struct rum_softc *sc,
 633     struct usb_device_request *req, void *data)
 634 {
 635         usb_error_t err;
 636         int ntries = 10;
 637
 638         while (ntries--) {
 639                 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
 640                     req, data, 0, NULL, 250 /* ms */);
 641                 if (err == 0)
 642                         break;
 643
 644                 DPRINTFN(1, "Control request failed, %s (retrying)\n",
 645                     usbd_errstr(err));
 646                 if (rum_pause(sc, hz / 100))
 647                         break;
 648         }
 649         return (err);
 650 }
 651
 652 static usb_error_t
 653 rum_do_mcu_request(struct rum_softc *sc, int request)
 654 {
 655         struct usb_device_request req;
 656
 657         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
 658         req.bRequest = RT2573_MCU_CNTL;
 659         USETW(req.wValue, request);
 660         USETW(req.wIndex, 0);
 661         USETW(req.wLength, 0);
 662
 663         return (rum_do_request(sc, &req, NULL));
 664 }
 665
 666 static struct ieee80211vap *
 667 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
 668     enum ieee80211_opmode opmode, int flags,
 669     const uint8_t bssid[IEEE80211_ADDR_LEN],
 670     const uint8_t mac[IEEE80211_ADDR_LEN])
 671 {
 672         struct rum_softc *sc = ic->ic_softc;
 673         struct rum_vap *rvp;
 674         struct ieee80211vap *vap;
 675
 676         if (!TAILQ_EMPTY(&ic->ic_vaps))         /* only one at a time */
 677                 return NULL;
 678         rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO);
 679         vap = &rvp->vap;
 680         /* enable s/w bmiss handling for sta mode */
 681
 682         if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
 683             flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
 684                 /* out of memory */
 685                 free(rvp, M_80211_VAP);
 686                 return (NULL);
 687         }
 688
 689         /* override state transition machine */
 690         rvp->newstate = vap->iv_newstate;
 691         vap->iv_newstate = rum_newstate;
 692         vap->iv_key_alloc = rum_key_alloc;
 693         vap->iv_key_set = rum_key_set;
 694         vap->iv_key_delete = rum_key_delete;
 695         vap->iv_update_beacon = rum_update_beacon;
 696         vap->iv_reset = rum_reset;
 697         vap->iv_max_aid = RT2573_ADDR_MAX;
 698
 699         if (opmode == IEEE80211_M_STA) {
 700                 /*
 701                  * Move device to the sleep state when
 702                  * beacon is received and there is no data for us.
 703                  *
 704                  * Used only for IEEE80211_S_SLEEP state.
 705                  */
 706                 rvp->recv_mgmt = vap->iv_recv_mgmt;
 707                 vap->iv_recv_mgmt = rum_sta_recv_mgmt;
 708
 709                 /* Ignored while sleeping. */
 710                 rvp->bmiss = vap->iv_bmiss;
 711                 vap->iv_bmiss = rum_beacon_miss;
 712         }
 713
 714         usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0);
 715         TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
 716         ieee80211_ratectl_init(vap);
 717         ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
 718         /* complete setup */
 719         ieee80211_vap_attach(vap, ieee80211_media_change,
 720             ieee80211_media_status, mac);
 721         ic->ic_opmode = opmode;
 722         return vap;
 723 }
 724
 725 static void
 726 rum_vap_delete(struct ieee80211vap *vap)
 727 {
 728         struct rum_vap *rvp = RUM_VAP(vap);
 729         struct ieee80211com *ic = vap->iv_ic;
 730         struct rum_softc *sc = ic->ic_softc;
 731
 732         /* Put vap into INIT state. */
 733         ieee80211_new_state(vap, IEEE80211_S_INIT, -1);
 734         ieee80211_draintask(ic, &vap->iv_nstate_task);
 735
 736         RUM_LOCK(sc);
 737         /* Cancel any unfinished Tx. */
 738         rum_reset_tx_list(sc, vap);
 739         RUM_UNLOCK(sc);
 740
 741         usb_callout_drain(&rvp->ratectl_ch);
 742         ieee80211_draintask(ic, &rvp->ratectl_task);
 743         ieee80211_ratectl_deinit(vap);
 744         ieee80211_vap_detach(vap);
 745         m_freem(rvp->bcn_mbuf);
 746         free(rvp, M_80211_VAP);
 747 }
 748
 749 static void
 750 rum_cmdq_cb(void *arg, int pending)
 751 {
 752         struct rum_softc *sc = arg;
 753         struct rum_cmdq *rc;
 754
 755         RUM_CMDQ_LOCK(sc);
 756         while (sc->cmdq[sc->cmdq_first].func != NULL) {
 757                 rc = &sc->cmdq[sc->cmdq_first];
 758                 RUM_CMDQ_UNLOCK(sc);
 759
 760                 RUM_LOCK(sc);
 761                 rc->func(sc, &rc->data, rc->rvp_id);
 762                 RUM_UNLOCK(sc);
 763
 764                 RUM_CMDQ_LOCK(sc);
 765                 memset(rc, 0, sizeof (*rc));
 766                 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE;
 767         }
 768         RUM_CMDQ_UNLOCK(sc);
 769 }
 770
 771 static int
 772 rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len,
 773     uint8_t rvp_id, CMD_FUNC_PROTO)
 774 {
 775         struct ieee80211com *ic = &sc->sc_ic;
 776
 777         KASSERT(len <= sizeof(union sec_param), ("buffer overflow"));
 778
 779         RUM_CMDQ_LOCK(sc);
 780         if (sc->cmdq[sc->cmdq_last].func != NULL) {
 781                 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__);
 782                 RUM_CMDQ_UNLOCK(sc);
 783
 784                 return EAGAIN;
 785         }
 786
 787         if (ptr != NULL)
 788                 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len);
 789         sc->cmdq[sc->cmdq_last].rvp_id = rvp_id;
 790         sc->cmdq[sc->cmdq_last].func = func;
 791         sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE;
 792         RUM_CMDQ_UNLOCK(sc);
 793
 794         ieee80211_runtask(ic, &sc->cmdq_task);
 795
 796         return 0;
 797 }
 798
 799 static void
 800 rum_tx_free(struct rum_tx_data *data, int txerr)
 801 {
 802         struct rum_softc *sc = data->sc;
 803
 804         if (data->m != NULL) {
 805                 ieee80211_tx_complete(data->ni, data->m, txerr);
 806                 data->m = NULL;
 807                 data->ni = NULL;
 808         }
 809         STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 810         sc->tx_nfree++;
 811 }
 812
 813 static void
 814 rum_setup_tx_list(struct rum_softc *sc)
 815 {
 816         struct rum_tx_data *data;
 817         int i;
 818
 819         sc->tx_nfree = 0;
 820         STAILQ_INIT(&sc->tx_q);
 821         STAILQ_INIT(&sc->tx_free);
 822
 823         for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
 824                 data = &sc->tx_data[i];
 825
 826                 data->sc = sc;
 827                 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 828                 sc->tx_nfree++;
 829         }
 830 }
 831
 832 static void
 833 rum_reset_tx_list(struct rum_softc *sc, struct ieee80211vap *vap)
 834 {
 835         struct rum_tx_data *data, *tmp;
 836
 837         KASSERT(vap != NULL, ("%s: vap is NULL\n", __func__));
 838
 839         STAILQ_FOREACH_SAFE(data, &sc->tx_q, next, tmp) {
 840                 if (data->ni != NULL && data->ni->ni_vap == vap) {
 841                         ieee80211_free_node(data->ni);
 842                         data->ni = NULL;
 843
 844                         KASSERT(data->m != NULL, ("%s: m is NULL\n",
 845                             __func__));
 846                         m_freem(data->m);
 847                         data->m = NULL;
 848
 849                         STAILQ_REMOVE(&sc->tx_q, data, rum_tx_data, next);
 850                         STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 851                         sc->tx_nfree++;
 852                 }
 853         }
 854 }
 855
 856 static void
 857 rum_unsetup_tx_list(struct rum_softc *sc)
 858 {
 859         struct rum_tx_data *data;
 860         int i;
 861
 862         /* make sure any subsequent use of the queues will fail */
 863         sc->tx_nfree = 0;
 864         STAILQ_INIT(&sc->tx_q);
 865         STAILQ_INIT(&sc->tx_free);
 866
 867         /* free up all node references and mbufs */
 868         for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
 869                 data = &sc->tx_data[i];
 870
 871                 if (data->m != NULL) {
 872                         m_freem(data->m);
 873                         data->m = NULL;
 874                 }
 875                 if (data->ni != NULL) {
 876                         ieee80211_free_node(data->ni);
 877                         data->ni = NULL;
 878                 }
 879         }
 880 }
 881
 882 static void
 883 rum_beacon_miss(struct ieee80211vap *vap)
 884 {
 885         struct ieee80211com *ic = vap->iv_ic;
 886         struct rum_softc *sc = ic->ic_softc;
 887         struct rum_vap *rvp = RUM_VAP(vap);
 888         int sleep;
 889
 890         RUM_LOCK(sc);
 891         if (sc->sc_sleeping && sc->sc_sleep_end < ticks) {
 892                 DPRINTFN(12, "dropping 'sleeping' bit, "
 893                     "device must be awake now\n");
 894
 895                 sc->sc_sleeping = 0;
 896         }
 897
 898         sleep = sc->sc_sleeping;
 899         RUM_UNLOCK(sc);
 900
 901         if (!sleep)
 902                 rvp->bmiss(vap);
 903 #ifdef USB_DEBUG
 904         else
 905                 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n");
 906 #endif
 907 }
 908
 909 static void
 910 rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype,
 911     const struct ieee80211_rx_stats *rxs,
 912     int rssi, int nf)
 913 {
 914         struct ieee80211vap *vap = ni->ni_vap;
 915         struct rum_softc *sc = vap->iv_ic->ic_softc;
 916         struct rum_vap *rvp = RUM_VAP(vap);
 917
 918         if (vap->iv_state == IEEE80211_S_SLEEP &&
 919             subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
 920                 RUM_LOCK(sc);
 921                 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n",
 922                     !!(sc->last_rx_flags & RT2573_RX_MYBSS),
 923                     sc->last_rx_flags);
 924
 925                 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) ==
 926                     (RT2573_RX_MYBSS | RT2573_RX_BC)) {
 927                         /*
 928                          * Put it to sleep here; in case if there is a data
 929                          * for us, iv_recv_mgmt() will wakeup the device via
 930                          * SLEEP -> RUN state transition.
 931                          */
 932                         rum_set_power_state(sc, 1);
 933                 }
 934                 RUM_UNLOCK(sc);
 935         }
 936
 937         rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf);
 938 }
 939
 940 static int
 941 rum_set_power_state(struct rum_softc *sc, int sleep)
 942 {
 943         usb_error_t uerror;
 944
 945         RUM_LOCK_ASSERT(sc);
 946
 947         DPRINTFN(12, "moving to %s state (sleep time %u)\n",
 948             sleep ? "sleep" : "awake", sc->sc_sleep_time);
 949
 950         uerror = rum_do_mcu_request(sc,
 951             sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP);
 952         if (uerror != USB_ERR_NORMAL_COMPLETION) {
 953                 device_printf(sc->sc_dev,
 954                     "%s: could not change power state: %s\n",
 955                     __func__, usbd_errstr(uerror));
 956                 return (EIO);
 957         }
 958
 959         sc->sc_sleeping = !!sleep;
 960         sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0;
 961
 962         return (0);
 963 }
 964
 965 static int
 966 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
 967 {
 968         struct rum_vap *rvp = RUM_VAP(vap);
 969         struct ieee80211com *ic = vap->iv_ic;
 970         struct rum_softc *sc = ic->ic_softc;
 971         const struct ieee80211_txparam *tp;
 972         enum ieee80211_state ostate;
 973         struct ieee80211_node *ni;
 974         usb_error_t uerror;
 975         int ret = 0;
 976
 977         ostate = vap->iv_state;
 978         DPRINTF("%s -> %s\n",
 979                 ieee80211_state_name[ostate],
 980                 ieee80211_state_name[nstate]);
 981
 982         IEEE80211_UNLOCK(ic);
 983         RUM_LOCK(sc);
 984         usb_callout_stop(&rvp->ratectl_ch);
 985
 986         if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) {
 987                 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
 988                 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
 989
 990                 /*
 991                  * Ignore any errors;
 992                  * any subsequent TX will wakeup it anyway
 993                  */
 994                 (void) rum_set_power_state(sc, 0);
 995         }
 996
 997         switch (nstate) {
 998         case IEEE80211_S_INIT:
 999                 if (ostate == IEEE80211_S_RUN)
1000                         rum_abort_tsf_sync(sc);
1001
1002                 break;
1003
1004         case IEEE80211_S_RUN:
1005                 if (ostate == IEEE80211_S_SLEEP)
1006                         break;          /* already handled */
1007
1008                 ni = ieee80211_ref_node(vap->iv_bss);
1009
1010                 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
1011                         if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
1012                             ni->ni_chan == IEEE80211_CHAN_ANYC) {
1013                                 ret = EINVAL;
1014                                 goto run_fail;
1015                         }
1016                         rum_update_slot_cb(sc, NULL, 0);
1017                         rum_enable_mrr(sc);
1018                         rum_set_txpreamble(sc);
1019                         rum_set_basicrates(sc);
1020                         rum_set_maxretry(sc, vap);
1021                         IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
1022                         rum_set_bssid(sc, sc->sc_bssid);
1023                 }
1024
1025                 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
1026                     vap->iv_opmode == IEEE80211_M_IBSS) {
1027                         if ((ret = rum_alloc_beacon(sc, vap)) != 0)
1028                                 goto run_fail;
1029                 }
1030
1031                 if (vap->iv_opmode != IEEE80211_M_MONITOR &&
1032                     vap->iv_opmode != IEEE80211_M_AHDEMO) {
1033                         if ((ret = rum_enable_tsf_sync(sc)) != 0)
1034                                 goto run_fail;
1035                 } else
1036                         rum_enable_tsf(sc);
1037
1038                 /* enable automatic rate adaptation */
1039                 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1040                 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
1041                         rum_ratectl_start(sc, ni);
1042 run_fail:
1043                 ieee80211_free_node(ni);
1044                 break;
1045         case IEEE80211_S_SLEEP:
1046                 /* Implemented for STA mode only. */
1047                 if (vap->iv_opmode != IEEE80211_M_STA)
1048                         break;
1049
1050                 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
1051                 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1052                         ret = EIO;
1053                         break;
1054                 }
1055
1056                 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
1057                 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1058                         ret = EIO;
1059                         break;
1060                 }
1061
1062                 ret = rum_set_power_state(sc, 1);
1063                 if (ret != 0) {
1064                         device_printf(sc->sc_dev,
1065                             "%s: could not move to the SLEEP state: %s\n",
1066                             __func__, usbd_errstr(uerror));
1067                 }
1068                 break;
1069         default:
1070                 break;
1071         }
1072         RUM_UNLOCK(sc);
1073         IEEE80211_LOCK(ic);
1074         return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret);
1075 }
1076
1077 static void
1078 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
1079 {
1080         struct rum_softc *sc = usbd_xfer_softc(xfer);
1081         struct ieee80211vap *vap;
1082         struct rum_tx_data *data;
1083         struct mbuf *m;
1084         struct usb_page_cache *pc;
1085         unsigned int len;
1086         int actlen, sumlen;
1087
1088         usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1089
1090         switch (USB_GET_STATE(xfer)) {
1091         case USB_ST_TRANSFERRED:
1092                 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
1093
1094                 /* free resources */
1095                 data = usbd_xfer_get_priv(xfer);
1096                 rum_tx_free(data, 0);
1097                 usbd_xfer_set_priv(xfer, NULL);
1098
1099                 /* FALLTHROUGH */
1100         case USB_ST_SETUP:
1101 tr_setup:
1102                 data = STAILQ_FIRST(&sc->tx_q);
1103                 if (data) {
1104                         STAILQ_REMOVE_HEAD(&sc->tx_q, next);
1105                         m = data->m;
1106
1107                         if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) {
1108                                 DPRINTFN(0, "data overflow, %u bytes\n",
1109                                     m->m_pkthdr.len);
1110                                 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
1111                         }
1112                         pc = usbd_xfer_get_frame(xfer, 0);
1113                         usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
1114                         usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
1115                             m->m_pkthdr.len);
1116
1117                         vap = data->ni->ni_vap;
1118                         if (ieee80211_radiotap_active_vap(vap)) {
1119                                 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
1120
1121                                 tap->wt_flags = 0;
1122                                 tap->wt_rate = data->rate;
1123                                 tap->wt_antenna = sc->tx_ant;
1124
1125                                 ieee80211_radiotap_tx(vap, m);
1126                         }
1127
1128                         /* align end on a 4-bytes boundary */
1129                         len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
1130                         if ((len % 64) == 0)
1131                                 len += 4;
1132
1133                         DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
1134                             m->m_pkthdr.len, len);
1135
1136                         usbd_xfer_set_frame_len(xfer, 0, len);
1137                         usbd_xfer_set_priv(xfer, data);
1138
1139                         usbd_transfer_submit(xfer);
1140                 }
1141                 rum_start(sc);
1142                 break;
1143
1144         default:                        /* Error */
1145                 DPRINTFN(11, "transfer error, %s\n",
1146                     usbd_errstr(error));
1147
1148                 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1149                 data = usbd_xfer_get_priv(xfer);
1150                 if (data != NULL) {
1151                         rum_tx_free(data, error);
1152                         usbd_xfer_set_priv(xfer, NULL);
1153                 }
1154
1155                 if (error != USB_ERR_CANCELLED) {
1156                         if (error == USB_ERR_TIMEOUT)
1157                                 device_printf(sc->sc_dev, "device timeout\n");
1158
1159                         /*
1160                          * Try to clear stall first, also if other
1161                          * errors occur, hence clearing stall
1162                          * introduces a 50 ms delay:
1163                          */
1164                         usbd_xfer_set_stall(xfer);
1165                         goto tr_setup;
1166                 }
1167                 break;
1168         }
1169 }
1170
1171 static void
1172 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
1173 {
1174         struct rum_softc *sc = usbd_xfer_softc(xfer);
1175         struct ieee80211com *ic = &sc->sc_ic;
1176         struct ieee80211_frame_min *wh;
1177         struct ieee80211_node *ni;
1178         struct mbuf *m = NULL;
1179         struct usb_page_cache *pc;
1180         uint32_t flags;
1181         uint8_t rssi = 0;
1182         int len;
1183
1184         usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
1185
1186         switch (USB_GET_STATE(xfer)) {
1187         case USB_ST_TRANSFERRED:
1188
1189                 DPRINTFN(15, "rx done, actlen=%d\n", len);
1190
1191                 if (len < RT2573_RX_DESC_SIZE) {
1192                         DPRINTF("%s: xfer too short %d\n",
1193                             device_get_nameunit(sc->sc_dev), len);
1194                         counter_u64_add(ic->ic_ierrors, 1);
1195                         goto tr_setup;
1196                 }
1197
1198                 len -= RT2573_RX_DESC_SIZE;
1199                 pc = usbd_xfer_get_frame(xfer, 0);
1200                 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
1201
1202                 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
1203                 flags = le32toh(sc->sc_rx_desc.flags);
1204                 sc->last_rx_flags = flags;
1205                 if (len < ((flags >> 16) & 0xfff)) {
1206                         DPRINTFN(5, "%s: frame is truncated from %d to %d "
1207                             "bytes\n", device_get_nameunit(sc->sc_dev),
1208                             (flags >> 16) & 0xfff, len);
1209                         counter_u64_add(ic->ic_ierrors, 1);
1210                         goto tr_setup;
1211                 }
1212                 len = (flags >> 16) & 0xfff;
1213                 if (len < sizeof(struct ieee80211_frame_ack)) {
1214                         DPRINTFN(5, "%s: frame too short %d\n",
1215                             device_get_nameunit(sc->sc_dev), len);
1216                         counter_u64_add(ic->ic_ierrors, 1);
1217                         goto tr_setup;
1218                 }
1219                 if (flags & RT2573_RX_CRC_ERROR) {
1220                         /*
1221                          * This should not happen since we did not
1222                          * request to receive those frames when we
1223                          * filled RUM_TXRX_CSR2:
1224                          */
1225                         DPRINTFN(5, "PHY or CRC error\n");
1226                         counter_u64_add(ic->ic_ierrors, 1);
1227                         goto tr_setup;
1228                 }
1229                 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) {
1230                         switch (flags & RT2573_RX_DEC_MASK) {
1231                         case RT2573_RX_IV_ERROR:
1232                                 DPRINTFN(5, "IV/EIV error\n");
1233                                 break;
1234                         case RT2573_RX_MIC_ERROR:
1235                                 DPRINTFN(5, "MIC error\n");
1236                                 break;
1237                         case RT2573_RX_KEY_ERROR:
1238                                 DPRINTFN(5, "Key error\n");
1239                                 break;
1240                         }
1241                         counter_u64_add(ic->ic_ierrors, 1);
1242                         goto tr_setup;
1243                 }
1244
1245                 m = m_get2(len, M_NOWAIT, MT_DATA, M_PKTHDR);
1246                 if (m == NULL) {
1247                         DPRINTF("could not allocate mbuf\n");
1248                         counter_u64_add(ic->ic_ierrors, 1);
1249                         goto tr_setup;
1250                 }
1251                 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
1252                     mtod(m, uint8_t *), len);
1253
1254                 wh = mtod(m, struct ieee80211_frame_min *);
1255
1256                 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1257                     (flags & RT2573_RX_CIP_MASK) !=
1258                      RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) {
1259                         wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
1260                         m->m_flags |= M_WEP;
1261                 }
1262
1263                 /* finalize mbuf */
1264                 m->m_pkthdr.len = m->m_len = len;
1265
1266                 if (ieee80211_radiotap_active(ic)) {
1267                         struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
1268
1269                         tap->wr_flags = 0;
1270                         tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
1271                             (flags & RT2573_RX_OFDM) ?
1272                             IEEE80211_T_OFDM : IEEE80211_T_CCK);
1273                         rum_get_tsf(sc, &tap->wr_tsf);
1274                         tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
1275                         tap->wr_antnoise = RT2573_NOISE_FLOOR;
1276                         tap->wr_antenna = sc->rx_ant;
1277                 }
1278                 /* FALLTHROUGH */
1279         case USB_ST_SETUP:
1280 tr_setup:
1281                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1282                 usbd_transfer_submit(xfer);
1283
1284                 /*
1285                  * At the end of a USB callback it is always safe to unlock
1286                  * the private mutex of a device! That is why we do the
1287                  * "ieee80211_input" here, and not some lines up!
1288                  */
1289                 RUM_UNLOCK(sc);
1290                 if (m) {
1291                         if (m->m_len >= sizeof(struct ieee80211_frame_min))
1292                                 ni = ieee80211_find_rxnode(ic, wh);
1293                         else
1294                                 ni = NULL;
1295
1296                         if (ni != NULL) {
1297                                 (void) ieee80211_input(ni, m, rssi,
1298                                     RT2573_NOISE_FLOOR);
1299                                 ieee80211_free_node(ni);
1300                         } else
1301                                 (void) ieee80211_input_all(ic, m, rssi,
1302                                     RT2573_NOISE_FLOOR);
1303                 }
1304                 RUM_LOCK(sc);
1305                 rum_start(sc);
1306                 return;
1307
1308         default:                        /* Error */
1309                 if (error != USB_ERR_CANCELLED) {
1310                         /* try to clear stall first */
1311                         usbd_xfer_set_stall(xfer);
1312                         goto tr_setup;
1313                 }
1314                 return;
1315         }
1316 }
1317
1318 static uint8_t
1319 rum_plcp_signal(int rate)
1320 {
1321         switch (rate) {
1322         /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1323         case 12:        return 0xb;
1324         case 18:        return 0xf;
1325         case 24:        return 0xa;
1326         case 36:        return 0xe;
1327         case 48:        return 0x9;
1328         case 72:        return 0xd;
1329         case 96:        return 0x8;
1330         case 108:       return 0xc;
1331
1332         /* CCK rates (NB: not IEEE std, device-specific) */
1333         case 2:         return 0x0;
1334         case 4:         return 0x1;
1335         case 11:        return 0x2;
1336         case 22:        return 0x3;
1337         }
1338         return 0xff;            /* XXX unsupported/unknown rate */
1339 }
1340
1341 /*
1342  * Map net80211 cipher to RT2573 security mode.
1343  */
1344 static uint8_t
1345 rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen)
1346 {
1347         switch (cipher) {
1348         case IEEE80211_CIPHER_WEP:
1349                 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104);
1350         case IEEE80211_CIPHER_TKIP:
1351                 return RT2573_MODE_TKIP;
1352         case IEEE80211_CIPHER_AES_CCM:
1353                 return RT2573_MODE_AES_CCMP;
1354         default:
1355                 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher);
1356                 return 0;
1357         }
1358 }
1359
1360 static void
1361 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
1362     struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid,
1363     int hdrlen, int len, int rate)
1364 {
1365         struct ieee80211com *ic = &sc->sc_ic;
1366         struct wmeParams *wmep = &sc->wme_params[qid];
1367         uint16_t plcp_length;
1368         int remainder;
1369
1370         flags |= RT2573_TX_VALID;
1371         flags |= len << 16;
1372
1373         if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1374                 const struct ieee80211_cipher *cip = k->wk_cipher;
1375
1376                 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen;
1377
1378                 desc->eiv = 0;          /* for WEP */
1379                 cip->ic_setiv(k, (uint8_t *)&desc->iv);
1380         }
1381
1382         /* setup PLCP fields */
1383         desc->plcp_signal  = rum_plcp_signal(rate);
1384         desc->plcp_service = 4;
1385
1386         len += IEEE80211_CRC_LEN;
1387         if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1388                 flags |= RT2573_TX_OFDM;
1389
1390                 plcp_length = len & 0xfff;
1391                 desc->plcp_length_hi = plcp_length >> 6;
1392                 desc->plcp_length_lo = plcp_length & 0x3f;
1393         } else {
1394                 if (rate == 0)
1395                         rate = 2;       /* avoid division by zero */
1396                 plcp_length = howmany(16 * len, rate);
1397                 if (rate == 22) {
1398                         remainder = (16 * len) % 22;
1399                         if (remainder != 0 && remainder < 7)
1400                                 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1401                 }
1402                 desc->plcp_length_hi = plcp_length >> 8;
1403                 desc->plcp_length_lo = plcp_length & 0xff;
1404
1405                 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1406                         desc->plcp_signal |= 0x08;
1407         }
1408
1409         desc->flags = htole32(flags);
1410         desc->hdrlen = hdrlen;
1411         desc->xflags = xflags;
1412
1413         desc->wme = htole16(RT2573_QID(qid) |
1414             RT2573_AIFSN(wmep->wmep_aifsn) |
1415             RT2573_LOGCWMIN(wmep->wmep_logcwmin) |
1416             RT2573_LOGCWMAX(wmep->wmep_logcwmax));
1417 }
1418
1419 static int
1420 rum_sendprot(struct rum_softc *sc,
1421     const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1422 {
1423         struct ieee80211com *ic = ni->ni_ic;
1424         struct rum_tx_data *data;
1425         struct mbuf *mprot;
1426         int protrate, flags;
1427
1428         RUM_LOCK_ASSERT(sc);
1429
1430         mprot = ieee80211_alloc_prot(ni, m, rate, prot);
1431         if (mprot == NULL) {
1432                 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1);
1433                 device_printf(sc->sc_dev,
1434                     "could not allocate mbuf for protection mode %d\n", prot);
1435                 return (ENOBUFS);
1436         }
1437
1438         protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1439         flags = 0;
1440         if (prot == IEEE80211_PROT_RTSCTS)
1441                 flags |= RT2573_TX_NEED_ACK;
1442
1443         data = STAILQ_FIRST(&sc->tx_free);
1444         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1445         sc->tx_nfree--;
1446
1447         data->m = mprot;
1448         data->ni = ieee80211_ref_node(ni);
1449         data->rate = protrate;
1450         rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0,
1451             mprot->m_pkthdr.len, protrate);
1452
1453         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1454         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1455
1456         return 0;
1457 }
1458
1459 static uint32_t
1460 rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni,
1461     const struct ieee80211_key *k)
1462 {
1463         struct ieee80211vap *vap = ni->ni_vap;
1464         u_int cipher;
1465         uint32_t flags = 0;
1466         uint8_t mode, pos;
1467
1468         if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1469                 cipher = k->wk_cipher->ic_cipher;
1470                 pos = k->wk_keyix;
1471                 mode = rum_crypto_mode(sc, cipher, k->wk_keylen);
1472                 if (mode == 0)
1473                         return 0;
1474
1475                 flags |= RT2573_TX_CIP_MODE(mode);
1476
1477                 /* Do not trust GROUP flag */
1478                 if (!(k >= &vap->iv_nw_keys[0] &&
1479                       k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]))
1480                         flags |= RT2573_TX_KEY_PAIR;
1481                 else
1482                         pos += 0 * RT2573_SKEY_MAX;     /* vap id */
1483
1484                 flags |= RT2573_TX_KEY_ID(pos);
1485
1486                 if (cipher == IEEE80211_CIPHER_TKIP)
1487                         flags |= RT2573_TX_TKIPMIC;
1488         }
1489
1490         return flags;
1491 }
1492
1493 static int
1494 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1495 {
1496         const struct ieee80211_txparam *tp = ni->ni_txparms;
1497         struct ieee80211com *ic = &sc->sc_ic;
1498         struct rum_tx_data *data;
1499         struct ieee80211_frame *wh;
1500         struct ieee80211_key *k = NULL;
1501         uint32_t flags = 0;
1502         uint16_t dur;
1503         uint8_t ac, type, xflags = 0;
1504         int hdrlen;
1505
1506         RUM_LOCK_ASSERT(sc);
1507
1508         data = STAILQ_FIRST(&sc->tx_free);
1509         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1510         sc->tx_nfree--;
1511
1512         wh = mtod(m0, struct ieee80211_frame *);
1513         type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1514         hdrlen = ieee80211_anyhdrsize(wh);
1515         ac = M_WME_GETAC(m0);
1516
1517         if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1518                 k = ieee80211_crypto_get_txkey(ni, m0);
1519                 if (k == NULL)
1520                         return (ENOENT);
1521
1522                 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1523                     !k->wk_cipher->ic_encap(k, m0))
1524                         return (ENOBUFS);
1525
1526                 wh = mtod(m0, struct ieee80211_frame *);
1527         }
1528
1529         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1530                 flags |= RT2573_TX_NEED_ACK;
1531
1532                 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1533                     ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1534                 USETW(wh->i_dur, dur);
1535
1536                 /* tell hardware to add timestamp for probe responses */
1537                 if (type == IEEE80211_FC0_TYPE_MGT &&
1538                     (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1539                     IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1540                         flags |= RT2573_TX_TIMESTAMP;
1541         }
1542
1543         if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1544                 xflags |= RT2573_TX_HWSEQ;
1545
1546         if (k != NULL)
1547                 flags |= rum_tx_crypto_flags(sc, ni, k);
1548
1549         data->m = m0;
1550         data->ni = ni;
1551         data->rate = tp->mgmtrate;
1552
1553         rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1554             m0->m_pkthdr.len, tp->mgmtrate);
1555
1556         DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1557             m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1558
1559         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1560         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1561
1562         return (0);
1563 }
1564
1565 static int
1566 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1567     const struct ieee80211_bpf_params *params)
1568 {
1569         struct ieee80211com *ic = ni->ni_ic;
1570         struct ieee80211_frame *wh;
1571         struct rum_tx_data *data;
1572         uint32_t flags;
1573         uint8_t ac, type, xflags = 0;
1574         int rate, error;
1575
1576         RUM_LOCK_ASSERT(sc);
1577
1578         wh = mtod(m0, struct ieee80211_frame *);
1579         type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1580
1581         ac = params->ibp_pri & 3;
1582
1583         rate = params->ibp_rate0;
1584         if (!ieee80211_isratevalid(ic->ic_rt, rate))
1585                 return (EINVAL);
1586
1587         flags = 0;
1588         if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1589                 flags |= RT2573_TX_NEED_ACK;
1590         if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1591                 error = rum_sendprot(sc, m0, ni,
1592                     params->ibp_flags & IEEE80211_BPF_RTS ?
1593                          IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1594                     rate);
1595                 if (error || sc->tx_nfree == 0)
1596                         return (ENOBUFS);
1597
1598                 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1599         }
1600
1601         if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1602                 xflags |= RT2573_TX_HWSEQ;
1603
1604         data = STAILQ_FIRST(&sc->tx_free);
1605         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1606         sc->tx_nfree--;
1607
1608         data->m = m0;
1609         data->ni = ni;
1610         data->rate = rate;
1611
1612         /* XXX need to setup descriptor ourself */
1613         rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0,
1614             m0->m_pkthdr.len, rate);
1615
1616         DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1617             m0->m_pkthdr.len, rate);
1618
1619         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1620         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1621
1622         return 0;
1623 }
1624
1625 static int
1626 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1627 {
1628         struct ieee80211vap *vap = ni->ni_vap;
1629         struct ieee80211com *ic = &sc->sc_ic;
1630         struct rum_tx_data *data;
1631         struct ieee80211_frame *wh;
1632         const struct ieee80211_txparam *tp = ni->ni_txparms;
1633         struct ieee80211_key *k = NULL;
1634         uint32_t flags = 0;
1635         uint16_t dur;
1636         uint8_t ac, type, qos, xflags = 0;
1637         int error, hdrlen, rate;
1638
1639         RUM_LOCK_ASSERT(sc);
1640
1641         wh = mtod(m0, struct ieee80211_frame *);
1642         type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1643         hdrlen = ieee80211_anyhdrsize(wh);
1644
1645         if (IEEE80211_QOS_HAS_SEQ(wh))
1646                 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
1647         else
1648                 qos = 0;
1649         ac = M_WME_GETAC(m0);
1650
1651         if (m0->m_flags & M_EAPOL)
1652                 rate = tp->mgmtrate;
1653         else if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1654                 rate = tp->mcastrate;
1655         else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1656                 rate = tp->ucastrate;
1657         else {
1658                 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1659                 rate = ni->ni_txrate;
1660         }
1661
1662         if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1663                 k = ieee80211_crypto_get_txkey(ni, m0);
1664                 if (k == NULL) {
1665                         m_freem(m0);
1666                         return (ENOENT);
1667                 }
1668                 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1669                     !k->wk_cipher->ic_encap(k, m0)) {
1670                         m_freem(m0);
1671                         return (ENOBUFS);
1672                 }
1673
1674                 /* packet header may have moved, reset our local pointer */
1675                 wh = mtod(m0, struct ieee80211_frame *);
1676         }
1677
1678         if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1679                 xflags |= RT2573_TX_HWSEQ;
1680
1681         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1682                 int prot = IEEE80211_PROT_NONE;
1683                 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1684                         prot = IEEE80211_PROT_RTSCTS;
1685                 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1686                     ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1687                         prot = ic->ic_protmode;
1688                 if (prot != IEEE80211_PROT_NONE) {
1689                         error = rum_sendprot(sc, m0, ni, prot, rate);
1690                         if (error || sc->tx_nfree == 0) {
1691                                 m_freem(m0);
1692                                 return ENOBUFS;
1693                         }
1694                         flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1695                 }
1696         }
1697
1698         if (k != NULL)
1699                 flags |= rum_tx_crypto_flags(sc, ni, k);
1700
1701         data = STAILQ_FIRST(&sc->tx_free);
1702         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1703         sc->tx_nfree--;
1704
1705         data->m = m0;
1706         data->ni = ni;
1707         data->rate = rate;
1708
1709         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1710                 /* Unicast frame, check if an ACK is expected. */
1711                 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
1712                     IEEE80211_QOS_ACKPOLICY_NOACK)
1713                         flags |= RT2573_TX_NEED_ACK;
1714
1715                 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1716                     ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1717                 USETW(wh->i_dur, dur);
1718         }
1719
1720         rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1721             m0->m_pkthdr.len, rate);
1722
1723         DPRINTFN(10, "sending frame len=%d rate=%d\n",
1724             m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1725
1726         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1727         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1728
1729         return 0;
1730 }
1731
1732 static int
1733 rum_transmit(struct ieee80211com *ic, struct mbuf *m)
1734 {
1735         struct rum_softc *sc = ic->ic_softc;
1736         int error;
1737
1738         RUM_LOCK(sc);
1739         if (!sc->sc_running) {
1740                 RUM_UNLOCK(sc);
1741                 return (ENXIO);
1742         }
1743         error = mbufq_enqueue(&sc->sc_snd, m);
1744         if (error) {
1745                 RUM_UNLOCK(sc);
1746                 return (error);
1747         }
1748         rum_start(sc);
1749         RUM_UNLOCK(sc);
1750
1751         return (0);
1752 }
1753
1754 static void
1755 rum_start(struct rum_softc *sc)
1756 {
1757         struct ieee80211_node *ni;
1758         struct mbuf *m;
1759
1760         RUM_LOCK_ASSERT(sc);
1761
1762         if (!sc->sc_running)
1763                 return;
1764
1765         while (sc->tx_nfree >= RUM_TX_MINFREE &&
1766             (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1767                 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1768                 if (rum_tx_data(sc, m, ni) != 0) {
1769                         if_inc_counter(ni->ni_vap->iv_ifp,
1770                             IFCOUNTER_OERRORS, 1);
1771                         ieee80211_free_node(ni);
1772                         break;
1773                 }
1774         }
1775 }
1776
1777 static void
1778 rum_parent(struct ieee80211com *ic)
1779 {
1780         struct rum_softc *sc = ic->ic_softc;
1781         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1782
1783         RUM_LOCK(sc);
1784         if (sc->sc_detached) {
1785                 RUM_UNLOCK(sc);
1786                 return;
1787         }
1788         RUM_UNLOCK(sc);
1789
1790         if (ic->ic_nrunning > 0) {
1791                 if (rum_init(sc) == 0)
1792                         ieee80211_start_all(ic);
1793                 else
1794                         ieee80211_stop(vap);
1795         } else
1796                 rum_stop(sc);
1797 }
1798
1799 static void
1800 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1801 {
1802         struct usb_device_request req;
1803         usb_error_t error;
1804
1805         req.bmRequestType = UT_READ_VENDOR_DEVICE;
1806         req.bRequest = RT2573_READ_EEPROM;
1807         USETW(req.wValue, 0);
1808         USETW(req.wIndex, addr);
1809         USETW(req.wLength, len);
1810
1811         error = rum_do_request(sc, &req, buf);
1812         if (error != 0) {
1813                 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1814                     usbd_errstr(error));
1815         }
1816 }
1817
1818 static uint32_t
1819 rum_read(struct rum_softc *sc, uint16_t reg)
1820 {
1821         uint32_t val;
1822
1823         rum_read_multi(sc, reg, &val, sizeof val);
1824
1825         return le32toh(val);
1826 }
1827
1828 static void
1829 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1830 {
1831         struct usb_device_request req;
1832         usb_error_t error;
1833
1834         req.bmRequestType = UT_READ_VENDOR_DEVICE;
1835         req.bRequest = RT2573_READ_MULTI_MAC;
1836         USETW(req.wValue, 0);
1837         USETW(req.wIndex, reg);
1838         USETW(req.wLength, len);
1839
1840         error = rum_do_request(sc, &req, buf);
1841         if (error != 0) {
1842                 device_printf(sc->sc_dev,
1843                     "could not multi read MAC register: %s\n",
1844                     usbd_errstr(error));
1845         }
1846 }
1847
1848 static usb_error_t
1849 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1850 {
1851         uint32_t tmp = htole32(val);
1852
1853         return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1854 }
1855
1856 static usb_error_t
1857 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1858 {
1859         struct usb_device_request req;
1860         usb_error_t error;
1861         size_t offset;
1862
1863         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1864         req.bRequest = RT2573_WRITE_MULTI_MAC;
1865         USETW(req.wValue, 0);
1866
1867         /* write at most 64 bytes at a time */
1868         for (offset = 0; offset < len; offset += 64) {
1869                 USETW(req.wIndex, reg + offset);
1870                 USETW(req.wLength, MIN(len - offset, 64));
1871
1872                 error = rum_do_request(sc, &req, (char *)buf + offset);
1873                 if (error != 0) {
1874                         device_printf(sc->sc_dev,
1875                             "could not multi write MAC register: %s\n",
1876                             usbd_errstr(error));
1877                         return (error);
1878                 }
1879         }
1880
1881         return (USB_ERR_NORMAL_COMPLETION);
1882 }
1883
1884 static usb_error_t
1885 rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1886 {
1887         return (rum_write(sc, reg, rum_read(sc, reg) | mask));
1888 }
1889
1890 static usb_error_t
1891 rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1892 {
1893         return (rum_write(sc, reg, rum_read(sc, reg) & ~mask));
1894 }
1895
1896 static usb_error_t
1897 rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset)
1898 {
1899         return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set));
1900 }
1901
1902 static int
1903 rum_bbp_busy(struct rum_softc *sc)
1904 {
1905         int ntries;
1906
1907         for (ntries = 0; ntries < 100; ntries++) {
1908                 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1909                         break;
1910                 if (rum_pause(sc, hz / 100))
1911                         break;
1912         }
1913         if (ntries == 100)
1914                 return (ETIMEDOUT);
1915
1916         return (0);
1917 }
1918
1919 static void
1920 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1921 {
1922         uint32_t tmp;
1923
1924         DPRINTFN(2, "reg=0x%08x\n", reg);
1925
1926         if (rum_bbp_busy(sc) != 0) {
1927                 device_printf(sc->sc_dev, "could not write to BBP\n");
1928                 return;
1929         }
1930
1931         tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1932         rum_write(sc, RT2573_PHY_CSR3, tmp);
1933 }
1934
1935 static uint8_t
1936 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1937 {
1938         uint32_t val;
1939         int ntries;
1940
1941         DPRINTFN(2, "reg=0x%08x\n", reg);
1942
1943         if (rum_bbp_busy(sc) != 0) {
1944                 device_printf(sc->sc_dev, "could not read BBP\n");
1945                 return 0;
1946         }
1947
1948         val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1949         rum_write(sc, RT2573_PHY_CSR3, val);
1950
1951         for (ntries = 0; ntries < 100; ntries++) {
1952                 val = rum_read(sc, RT2573_PHY_CSR3);
1953                 if (!(val & RT2573_BBP_BUSY))
1954                         return val & 0xff;
1955                 if (rum_pause(sc, hz / 100))
1956                         break;
1957         }
1958
1959         device_printf(sc->sc_dev, "could not read BBP\n");
1960         return 0;
1961 }
1962
1963 static void
1964 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1965 {
1966         uint32_t tmp;
1967         int ntries;
1968
1969         for (ntries = 0; ntries < 100; ntries++) {
1970                 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1971                         break;
1972                 if (rum_pause(sc, hz / 100))
1973                         break;
1974         }
1975         if (ntries == 100) {
1976                 device_printf(sc->sc_dev, "could not write to RF\n");
1977                 return;
1978         }
1979
1980         tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1981             (reg & 3);
1982         rum_write(sc, RT2573_PHY_CSR4, tmp);
1983
1984         /* remember last written value in sc */
1985         sc->rf_regs[reg] = val;
1986
1987         DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1988 }
1989
1990 static void
1991 rum_select_antenna(struct rum_softc *sc)
1992 {
1993         uint8_t bbp4, bbp77;
1994         uint32_t tmp;
1995
1996         bbp4  = rum_bbp_read(sc, 4);
1997         bbp77 = rum_bbp_read(sc, 77);
1998
1999         /* TBD */
2000
2001         /* make sure Rx is disabled before switching antenna */
2002         tmp = rum_read(sc, RT2573_TXRX_CSR0);
2003         rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2004
2005         rum_bbp_write(sc,  4, bbp4);
2006         rum_bbp_write(sc, 77, bbp77);
2007
2008         rum_write(sc, RT2573_TXRX_CSR0, tmp);
2009 }
2010
2011 /*
2012  * Enable multi-rate retries for frames sent at OFDM rates.
2013  * In 802.11b/g mode, allow fallback to CCK rates.
2014  */
2015 static void
2016 rum_enable_mrr(struct rum_softc *sc)
2017 {
2018         struct ieee80211com *ic = &sc->sc_ic;
2019
2020         if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2021                 rum_setbits(sc, RT2573_TXRX_CSR4,
2022                     RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK);
2023         } else {
2024                 rum_modbits(sc, RT2573_TXRX_CSR4,
2025                     RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK);
2026         }
2027 }
2028
2029 static void
2030 rum_set_txpreamble(struct rum_softc *sc)
2031 {
2032         struct ieee80211com *ic = &sc->sc_ic;
2033
2034         if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2035                 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
2036         else
2037                 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
2038 }
2039
2040 static void
2041 rum_set_basicrates(struct rum_softc *sc)
2042 {
2043         struct ieee80211com *ic = &sc->sc_ic;
2044
2045         /* update basic rate set */
2046         if (ic->ic_curmode == IEEE80211_MODE_11B) {
2047                 /* 11b basic rates: 1, 2Mbps */
2048                 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
2049         } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2050                 /* 11a basic rates: 6, 12, 24Mbps */
2051                 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
2052         } else {
2053                 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
2054                 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
2055         }
2056 }
2057
2058 /*
2059  * Reprogram MAC/BBP to switch to a new band.  Values taken from the reference
2060  * driver.
2061  */
2062 static void
2063 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
2064 {
2065         uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
2066
2067         /* update all BBP registers that depend on the band */
2068         bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
2069         bbp35 = 0x50; bbp97 = 0x48; bbp98  = 0x48;
2070         if (IEEE80211_IS_CHAN_5GHZ(c)) {
2071                 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
2072                 bbp35 += 0x10; bbp97 += 0x10; bbp98  += 0x10;
2073         }
2074         if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2075             (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2076                 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
2077         }
2078
2079         sc->bbp17 = bbp17;
2080         rum_bbp_write(sc,  17, bbp17);
2081         rum_bbp_write(sc,  96, bbp96);
2082         rum_bbp_write(sc, 104, bbp104);
2083
2084         if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2085             (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2086                 rum_bbp_write(sc, 75, 0x80);
2087                 rum_bbp_write(sc, 86, 0x80);
2088                 rum_bbp_write(sc, 88, 0x80);
2089         }
2090
2091         rum_bbp_write(sc, 35, bbp35);
2092         rum_bbp_write(sc, 97, bbp97);
2093         rum_bbp_write(sc, 98, bbp98);
2094
2095         if (IEEE80211_IS_CHAN_2GHZ(c)) {
2096                 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ,
2097                     RT2573_PA_PE_5GHZ);
2098         } else {
2099                 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ,
2100                     RT2573_PA_PE_2GHZ);
2101         }
2102 }
2103
2104 static void
2105 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
2106 {
2107         struct ieee80211com *ic = &sc->sc_ic;
2108         const struct rfprog *rfprog;
2109         uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
2110         int8_t power;
2111         int i, chan;
2112
2113         chan = ieee80211_chan2ieee(ic, c);
2114         if (chan == 0 || chan == IEEE80211_CHAN_ANY)
2115                 return;
2116
2117         /* select the appropriate RF settings based on what EEPROM says */
2118         rfprog = (sc->rf_rev == RT2573_RF_5225 ||
2119                   sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
2120
2121         /* find the settings for this channel (we know it exists) */
2122         for (i = 0; rfprog[i].chan != chan; i++);
2123
2124         power = sc->txpow[i];
2125         if (power < 0) {
2126                 bbp94 += power;
2127                 power = 0;
2128         } else if (power > 31) {
2129                 bbp94 += power - 31;
2130                 power = 31;
2131         }
2132
2133         /*
2134          * If we are switching from the 2GHz band to the 5GHz band or
2135          * vice-versa, BBP registers need to be reprogrammed.
2136          */
2137         if (c->ic_flags != ic->ic_curchan->ic_flags) {
2138                 rum_select_band(sc, c);
2139                 rum_select_antenna(sc);
2140         }
2141         ic->ic_curchan = c;
2142
2143         rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2144         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2145         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2146         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2147
2148         rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2149         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2150         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
2151         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2152
2153         rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2154         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2155         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2156         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2157
2158         rum_pause(sc, hz / 100);
2159
2160         /* enable smart mode for MIMO-capable RFs */
2161         bbp3 = rum_bbp_read(sc, 3);
2162
2163         bbp3 &= ~RT2573_SMART_MODE;
2164         if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
2165                 bbp3 |= RT2573_SMART_MODE;
2166
2167         rum_bbp_write(sc, 3, bbp3);
2168
2169         if (bbp94 != RT2573_BBPR94_DEFAULT)
2170                 rum_bbp_write(sc, 94, bbp94);
2171
2172         /* give the chip some extra time to do the switchover */
2173         rum_pause(sc, hz / 100);
2174 }
2175
2176 static void
2177 rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap)
2178 {
2179         struct ieee80211_node *ni = vap->iv_bss;
2180         const struct ieee80211_txparam *tp = ni->ni_txparms;
2181         struct rum_vap *rvp = RUM_VAP(vap);
2182
2183         rvp->maxretry = MIN(tp->maxretry, 0xf);
2184
2185         rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) |
2186             RT2573_LONG_RETRY(rvp->maxretry),
2187             RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK);
2188 }
2189
2190 /*
2191  * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
2192  * and HostAP operating modes.
2193  */
2194 static int
2195 rum_enable_tsf_sync(struct rum_softc *sc)
2196 {
2197         struct ieee80211com *ic = &sc->sc_ic;
2198         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2199         uint32_t tmp;
2200         uint16_t bintval;
2201
2202         if (vap->iv_opmode != IEEE80211_M_STA) {
2203                 /*
2204                  * Change default 16ms TBTT adjustment to 8ms.
2205                  * Must be done before enabling beacon generation.
2206                  */
2207                 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0)
2208                         return EIO;
2209         }
2210
2211         tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
2212
2213         /* set beacon interval (in 1/16ms unit) */
2214         bintval = vap->iv_bss->ni_intval;
2215         tmp |= bintval * 16;
2216         tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN;
2217
2218         switch (vap->iv_opmode) {
2219         case IEEE80211_M_STA:
2220                 /*
2221                  * Local TSF is always updated with remote TSF on beacon
2222                  * reception.
2223                  */
2224                 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA);
2225                 break;
2226         case IEEE80211_M_IBSS:
2227                 /*
2228                  * Local TSF is updated with remote TSF on beacon reception
2229                  * only if the remote TSF is greater than local TSF.
2230                  */
2231                 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS);
2232                 tmp |= RT2573_BCN_TX_EN;
2233                 break;
2234         case IEEE80211_M_HOSTAP:
2235                 /* SYNC with nobody */
2236                 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP);
2237                 tmp |= RT2573_BCN_TX_EN;
2238                 break;
2239         default:
2240                 device_printf(sc->sc_dev,
2241                     "Enabling TSF failed. undefined opmode %d\n",
2242                     vap->iv_opmode);
2243                 return EINVAL;
2244         }
2245
2246         if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0)
2247                 return EIO;
2248
2249         /* refresh current sleep time */
2250         return (rum_set_sleep_time(sc, bintval));
2251 }
2252
2253 static void
2254 rum_enable_tsf(struct rum_softc *sc)
2255 {
2256         rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN |
2257             RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff);
2258 }
2259
2260 static void
2261 rum_abort_tsf_sync(struct rum_softc *sc)
2262 {
2263         rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff);
2264 }
2265
2266 static void
2267 rum_get_tsf(struct rum_softc *sc, uint64_t *buf)
2268 {
2269         rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf));
2270 }
2271
2272 static void
2273 rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id)
2274 {
2275         struct ieee80211com *ic = &sc->sc_ic;
2276         uint8_t slottime;
2277
2278         slottime = IEEE80211_GET_SLOTTIME(ic);
2279
2280         rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff);
2281
2282         DPRINTF("setting slot time to %uus\n", slottime);
2283 }
2284
2285 static void
2286 rum_update_slot(struct ieee80211com *ic)
2287 {
2288         rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb);
2289 }
2290
2291 static int
2292 rum_wme_update(struct ieee80211com *ic)
2293 {
2294         struct chanAccParams chp;
2295         const struct wmeParams *chanp;
2296         struct rum_softc *sc = ic->ic_softc;
2297         int error = 0;
2298
2299         ieee80211_wme_ic_getparams(ic, &chp);
2300         chanp = chp.cap_wmeParams;
2301
2302         RUM_LOCK(sc);
2303         error = rum_write(sc, RT2573_AIFSN_CSR,
2304             chanp[WME_AC_VO].wmep_aifsn  << 12 |
2305             chanp[WME_AC_VI].wmep_aifsn  <<  8 |
2306             chanp[WME_AC_BK].wmep_aifsn  <<  4 |
2307             chanp[WME_AC_BE].wmep_aifsn);
2308         if (error)
2309                 goto print_err;
2310         error = rum_write(sc, RT2573_CWMIN_CSR,
2311             chanp[WME_AC_VO].wmep_logcwmin << 12 |
2312             chanp[WME_AC_VI].wmep_logcwmin <<  8 |
2313             chanp[WME_AC_BK].wmep_logcwmin <<  4 |
2314             chanp[WME_AC_BE].wmep_logcwmin);
2315         if (error)
2316                 goto print_err;
2317         error = rum_write(sc, RT2573_CWMAX_CSR,
2318             chanp[WME_AC_VO].wmep_logcwmax << 12 |
2319             chanp[WME_AC_VI].wmep_logcwmax <<  8 |
2320             chanp[WME_AC_BK].wmep_logcwmax <<  4 |
2321             chanp[WME_AC_BE].wmep_logcwmax);
2322         if (error)
2323                 goto print_err;
2324         error = rum_write(sc, RT2573_TXOP01_CSR,
2325             chanp[WME_AC_BK].wmep_txopLimit << 16 |
2326             chanp[WME_AC_BE].wmep_txopLimit);
2327         if (error)
2328                 goto print_err;
2329         error = rum_write(sc, RT2573_TXOP23_CSR,
2330             chanp[WME_AC_VO].wmep_txopLimit << 16 |
2331             chanp[WME_AC_VI].wmep_txopLimit);
2332         if (error)
2333                 goto print_err;
2334
2335         memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC);
2336
2337 print_err:
2338         RUM_UNLOCK(sc);
2339         if (error != 0) {
2340                 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n",
2341                     __func__, error);
2342         }
2343
2344         return (error);
2345 }
2346
2347 static void
2348 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
2349 {
2350
2351         rum_write(sc, RT2573_MAC_CSR4,
2352             bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24);
2353         rum_write(sc, RT2573_MAC_CSR5,
2354             bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1));
2355 }
2356
2357 static void
2358 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
2359 {
2360
2361         rum_write(sc, RT2573_MAC_CSR2,
2362             addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
2363         rum_write(sc, RT2573_MAC_CSR3,
2364             addr[4] | addr[5] << 8 | 0xff << 16);
2365 }
2366
2367 static void
2368 rum_setpromisc(struct rum_softc *sc)
2369 {
2370         struct ieee80211com *ic = &sc->sc_ic;
2371
2372         if (ic->ic_promisc == 0)
2373                 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2374         else
2375                 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2376
2377         DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ?
2378             "entering" : "leaving");
2379 }
2380
2381 static void
2382 rum_update_promisc(struct ieee80211com *ic)
2383 {
2384         struct rum_softc *sc = ic->ic_softc;
2385
2386         RUM_LOCK(sc);
2387         if (sc->sc_running)
2388                 rum_setpromisc(sc);
2389         RUM_UNLOCK(sc);
2390 }
2391
2392 static void
2393 rum_update_mcast(struct ieee80211com *ic)
2394 {
2395         /* Ignore. */
2396 }
2397
2398 static const char *
2399 rum_get_rf(int rev)
2400 {
2401         switch (rev) {
2402         case RT2573_RF_2527:    return "RT2527 (MIMO XR)";
2403         case RT2573_RF_2528:    return "RT2528";
2404         case RT2573_RF_5225:    return "RT5225 (MIMO XR)";
2405         case RT2573_RF_5226:    return "RT5226";
2406         default:                return "unknown";
2407         }
2408 }
2409
2410 static void
2411 rum_read_eeprom(struct rum_softc *sc)
2412 {
2413         uint16_t val;
2414 #ifdef RUM_DEBUG
2415         int i;
2416 #endif
2417
2418         /* read MAC address */
2419         rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6);
2420
2421         rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
2422         val = le16toh(val);
2423         sc->rf_rev =   (val >> 11) & 0x1f;
2424         sc->hw_radio = (val >> 10) & 0x1;
2425         sc->rx_ant =   (val >> 4)  & 0x3;
2426         sc->tx_ant =   (val >> 2)  & 0x3;
2427         sc->nb_ant =   val & 0x3;
2428
2429         DPRINTF("RF revision=%d\n", sc->rf_rev);
2430
2431         rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
2432         val = le16toh(val);
2433         sc->ext_5ghz_lna = (val >> 6) & 0x1;
2434         sc->ext_2ghz_lna = (val >> 4) & 0x1;
2435
2436         DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
2437             sc->ext_2ghz_lna, sc->ext_5ghz_lna);
2438
2439         rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
2440         val = le16toh(val);
2441         if ((val & 0xff) != 0xff)
2442                 sc->rssi_2ghz_corr = (int8_t)(val & 0xff);      /* signed */
2443
2444         /* Only [-10, 10] is valid */
2445         if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
2446                 sc->rssi_2ghz_corr = 0;
2447
2448         rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
2449         val = le16toh(val);
2450         if ((val & 0xff) != 0xff)
2451                 sc->rssi_5ghz_corr = (int8_t)(val & 0xff);      /* signed */
2452
2453         /* Only [-10, 10] is valid */
2454         if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
2455                 sc->rssi_5ghz_corr = 0;
2456
2457         if (sc->ext_2ghz_lna)
2458                 sc->rssi_2ghz_corr -= 14;
2459         if (sc->ext_5ghz_lna)
2460                 sc->rssi_5ghz_corr -= 14;
2461
2462         DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
2463             sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
2464
2465         rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
2466         val = le16toh(val);
2467         if ((val & 0xff) != 0xff)
2468                 sc->rffreq = val & 0xff;
2469
2470         DPRINTF("RF freq=%d\n", sc->rffreq);
2471
2472         /* read Tx power for all a/b/g channels */
2473         rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
2474         /* XXX default Tx power for 802.11a channels */
2475         memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
2476 #ifdef RUM_DEBUG
2477         for (i = 0; i < 14; i++)
2478                 DPRINTF("Channel=%d Tx power=%d\n", i + 1,  sc->txpow[i]);
2479 #endif
2480
2481         /* read default values for BBP registers */
2482         rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
2483 #ifdef RUM_DEBUG
2484         for (i = 0; i < 14; i++) {
2485                 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2486                         continue;
2487                 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
2488                     sc->bbp_prom[i].val);
2489         }
2490 #endif
2491 }
2492
2493 static int
2494 rum_bbp_wakeup(struct rum_softc *sc)
2495 {
2496         unsigned int ntries;
2497
2498         for (ntries = 0; ntries < 100; ntries++) {
2499                 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
2500                         break;
2501                 rum_write(sc, RT2573_MAC_CSR12, 4);     /* force wakeup */
2502                 if (rum_pause(sc, hz / 100))
2503                         break;
2504         }
2505         if (ntries == 100) {
2506                 device_printf(sc->sc_dev,
2507                     "timeout waiting for BBP/RF to wakeup\n");
2508                 return (ETIMEDOUT);
2509         }
2510
2511         return (0);
2512 }
2513
2514 static int
2515 rum_bbp_init(struct rum_softc *sc)
2516 {
2517         int i, ntries;
2518
2519         /* wait for BBP to be ready */
2520         for (ntries = 0; ntries < 100; ntries++) {
2521                 const uint8_t val = rum_bbp_read(sc, 0);
2522                 if (val != 0 && val != 0xff)
2523                         break;
2524                 if (rum_pause(sc, hz / 100))
2525                         break;
2526         }
2527         if (ntries == 100) {
2528                 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2529                 return EIO;
2530         }
2531
2532         /* initialize BBP registers to default values */
2533         for (i = 0; i < nitems(rum_def_bbp); i++)
2534                 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
2535
2536         /* write vendor-specific BBP values (from EEPROM) */
2537         for (i = 0; i < 16; i++) {
2538                 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2539                         continue;
2540                 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2541         }
2542
2543         return 0;
2544 }
2545
2546 static void
2547 rum_clr_shkey_regs(struct rum_softc *sc)
2548 {
2549         rum_write(sc, RT2573_SEC_CSR0, 0);
2550         rum_write(sc, RT2573_SEC_CSR1, 0);
2551         rum_write(sc, RT2573_SEC_CSR5, 0);
2552 }
2553
2554 static int
2555 rum_init(struct rum_softc *sc)
2556 {
2557         struct ieee80211com *ic = &sc->sc_ic;
2558         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2559         uint32_t tmp;
2560         int i, ret;
2561
2562         RUM_LOCK(sc);
2563         if (sc->sc_running) {
2564                 ret = 0;
2565                 goto end;
2566         }
2567
2568         /* initialize MAC registers to default values */
2569         for (i = 0; i < nitems(rum_def_mac); i++)
2570                 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
2571
2572         /* reset some WME parameters to default values */
2573         sc->wme_params[0].wmep_aifsn = 2;
2574         sc->wme_params[0].wmep_logcwmin = 4;
2575         sc->wme_params[0].wmep_logcwmax = 10;
2576
2577         /* set host ready */
2578         rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2579         rum_write(sc, RT2573_MAC_CSR1, 0);
2580
2581         /* wait for BBP/RF to wakeup */
2582         if ((ret = rum_bbp_wakeup(sc)) != 0)
2583                 goto end;
2584
2585         if ((ret = rum_bbp_init(sc)) != 0)
2586                 goto end;
2587
2588         /* select default channel */
2589         rum_select_band(sc, ic->ic_curchan);
2590         rum_select_antenna(sc);
2591         rum_set_chan(sc, ic->ic_curchan);
2592
2593         /* clear STA registers */
2594         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2595
2596         /* clear security registers (if required) */
2597         if (sc->sc_clr_shkeys == 0) {
2598                 rum_clr_shkey_regs(sc);
2599                 sc->sc_clr_shkeys = 1;
2600         }
2601
2602         rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr);
2603
2604         /* initialize ASIC */
2605         rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY);
2606
2607         /*
2608          * Allocate Tx and Rx xfer queues.
2609          */
2610         rum_setup_tx_list(sc);
2611
2612         /* update Rx filter */
2613         tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2614
2615         tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2616         if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2617                 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2618                        RT2573_DROP_ACKCTS;
2619                 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2620                         tmp |= RT2573_DROP_TODS;
2621                 if (ic->ic_promisc == 0)
2622                         tmp |= RT2573_DROP_NOT_TO_ME;
2623         }
2624         rum_write(sc, RT2573_TXRX_CSR0, tmp);
2625
2626         sc->sc_running = 1;
2627         usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2628         usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2629
2630 end:    RUM_UNLOCK(sc);
2631
2632         if (ret != 0)
2633                 rum_stop(sc);
2634
2635         return ret;
2636 }
2637
2638 static void
2639 rum_stop(struct rum_softc *sc)
2640 {
2641
2642         RUM_LOCK(sc);
2643         if (!sc->sc_running) {
2644                 RUM_UNLOCK(sc);
2645                 return;
2646         }
2647         sc->sc_running = 0;
2648         RUM_UNLOCK(sc);
2649
2650         /*
2651          * Drain the USB transfers, if not already drained:
2652          */
2653         usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2654         usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2655
2656         RUM_LOCK(sc);
2657         rum_unsetup_tx_list(sc);
2658
2659         /* disable Rx */
2660         rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX);
2661
2662         /* reset ASIC */
2663         rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2664         rum_write(sc, RT2573_MAC_CSR1, 0);
2665         RUM_UNLOCK(sc);
2666 }
2667
2668 static void
2669 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2670 {
2671         uint16_t reg = RT2573_MCU_CODE_BASE;
2672         usb_error_t err;
2673
2674         /* copy firmware image into NIC */
2675         for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2676                 err = rum_write(sc, reg, UGETDW(ucode));
2677                 if (err) {
2678                         /* firmware already loaded ? */
2679                         device_printf(sc->sc_dev, "Firmware load "
2680                             "failure! (ignored)\n");
2681                         break;
2682                 }
2683         }
2684
2685         err = rum_do_mcu_request(sc, RT2573_MCU_RUN);
2686         if (err != USB_ERR_NORMAL_COMPLETION) {
2687                 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2688                     usbd_errstr(err));
2689         }
2690
2691         /* give the chip some time to boot */
2692         rum_pause(sc, hz / 8);
2693 }
2694
2695 static int
2696 rum_set_sleep_time(struct rum_softc *sc, uint16_t bintval)
2697 {
2698         struct ieee80211com *ic = &sc->sc_ic;
2699         usb_error_t uerror;
2700         int exp, delay;
2701
2702         RUM_LOCK_ASSERT(sc);
2703
2704         exp = ic->ic_lintval / bintval;
2705         delay = ic->ic_lintval % bintval;
2706
2707         if (exp > RT2573_TBCN_EXP_MAX)
2708                 exp = RT2573_TBCN_EXP_MAX;
2709         if (delay > RT2573_TBCN_DELAY_MAX)
2710                 delay = RT2573_TBCN_DELAY_MAX;
2711
2712         uerror = rum_modbits(sc, RT2573_MAC_CSR11,
2713             RT2573_TBCN_EXP(exp) |
2714             RT2573_TBCN_DELAY(delay),
2715             RT2573_TBCN_EXP(RT2573_TBCN_EXP_MAX) |
2716             RT2573_TBCN_DELAY(RT2573_TBCN_DELAY_MAX));
2717
2718         if (uerror != USB_ERR_NORMAL_COMPLETION)
2719                 return (EIO);
2720
2721         sc->sc_sleep_time = IEEE80211_TU_TO_TICKS(exp * bintval + delay);
2722
2723         return (0);
2724 }
2725
2726 static int
2727 rum_reset(struct ieee80211vap *vap, u_long cmd)
2728 {
2729         struct ieee80211com *ic = vap->iv_ic;
2730         struct ieee80211_node *ni;
2731         struct rum_softc *sc = ic->ic_softc;
2732         int error;
2733
2734         switch (cmd) {
2735         case IEEE80211_IOC_POWERSAVE:
2736         case IEEE80211_IOC_PROTMODE:
2737         case IEEE80211_IOC_RTSTHRESHOLD:
2738                 error = 0;
2739                 break;
2740         case IEEE80211_IOC_POWERSAVESLEEP:
2741                 ni = ieee80211_ref_node(vap->iv_bss);
2742
2743                 RUM_LOCK(sc);
2744                 error = rum_set_sleep_time(sc, ni->ni_intval);
2745                 if (vap->iv_state == IEEE80211_S_SLEEP) {
2746                         /* Use new values for wakeup timer. */
2747                         rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2748                         rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2749                 }
2750                 /* XXX send reassoc */
2751                 RUM_UNLOCK(sc);
2752
2753                 ieee80211_free_node(ni);
2754                 break;
2755         default:
2756                 error = ENETRESET;
2757                 break;
2758         }
2759
2760         return (error);
2761 }
2762
2763 static int
2764 rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2765 {
2766         struct ieee80211com *ic = vap->iv_ic;
2767         struct rum_vap *rvp = RUM_VAP(vap);
2768         struct mbuf *m = rvp->bcn_mbuf;
2769         const struct ieee80211_txparam *tp;
2770         struct rum_tx_desc desc;
2771
2772         RUM_LOCK_ASSERT(sc);
2773
2774         if (m == NULL)
2775                 return EINVAL;
2776         if (ic->ic_bsschan == IEEE80211_CHAN_ANYC)
2777                 return EINVAL;
2778
2779         tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2780         rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP,
2781             RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate);
2782
2783         /* copy the Tx descriptor into NIC memory */
2784         if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc,
2785             RT2573_TX_DESC_SIZE) != 0)
2786                 return EIO;
2787
2788         /* copy beacon header and payload into NIC memory */
2789         if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE,
2790             mtod(m, uint8_t *), m->m_pkthdr.len) != 0)
2791                 return EIO;
2792
2793         return 0;
2794 }
2795
2796 static int
2797 rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2798 {
2799         struct rum_vap *rvp = RUM_VAP(vap);
2800         struct ieee80211_node *ni = vap->iv_bss;
2801         struct mbuf *m;
2802
2803         if (ni->ni_chan == IEEE80211_CHAN_ANYC)
2804                 return EINVAL;
2805
2806         m = ieee80211_beacon_alloc(ni);
2807         if (m == NULL)
2808                 return ENOMEM;
2809
2810         if (rvp->bcn_mbuf != NULL)
2811                 m_freem(rvp->bcn_mbuf);
2812
2813         rvp->bcn_mbuf = m;
2814
2815         return (rum_set_beacon(sc, vap));
2816 }
2817
2818 static void
2819 rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data,
2820     uint8_t rvp_id)
2821 {
2822         struct ieee80211vap *vap = data->vap;
2823
2824         rum_set_beacon(sc, vap);
2825 }
2826
2827 static void
2828 rum_update_beacon(struct ieee80211vap *vap, int item)
2829 {
2830         struct ieee80211com *ic = vap->iv_ic;
2831         struct rum_softc *sc = ic->ic_softc;
2832         struct rum_vap *rvp = RUM_VAP(vap);
2833         struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
2834         struct ieee80211_node *ni = vap->iv_bss;
2835         struct mbuf *m = rvp->bcn_mbuf;
2836         int mcast = 0;
2837
2838         RUM_LOCK(sc);
2839         if (m == NULL) {
2840                 m = ieee80211_beacon_alloc(ni);
2841                 if (m == NULL) {
2842                         device_printf(sc->sc_dev,
2843                             "%s: could not allocate beacon frame\n", __func__);
2844                         RUM_UNLOCK(sc);
2845                         return;
2846                 }
2847                 rvp->bcn_mbuf = m;
2848         }
2849
2850         switch (item) {
2851         case IEEE80211_BEACON_ERP:
2852                 rum_update_slot(ic);
2853                 break;
2854         case IEEE80211_BEACON_TIM:
2855                 mcast = 1;      /*TODO*/
2856                 break;
2857         default:
2858                 break;
2859         }
2860         RUM_UNLOCK(sc);
2861
2862         setbit(bo->bo_flags, item);
2863         ieee80211_beacon_update(ni, m, mcast);
2864
2865         rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb);
2866 }
2867
2868 static int
2869 rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k,
2870     uint16_t base)
2871 {
2872
2873         if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen))
2874                 return EIO;
2875
2876         if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) {
2877                 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE,
2878                     k->wk_txmic, 8))
2879                         return EIO;
2880                 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8,
2881                     k->wk_rxmic, 8))
2882                         return EIO;
2883         }
2884
2885         return 0;
2886 }
2887
2888 static void
2889 rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data,
2890     uint8_t rvp_id)
2891 {
2892         struct ieee80211_key *k = &data->key;
2893         uint8_t mode;
2894
2895         if (sc->sc_clr_shkeys == 0) {
2896                 rum_clr_shkey_regs(sc);
2897                 sc->sc_clr_shkeys = 1;
2898         }
2899
2900         mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2901         if (mode == 0)
2902                 goto print_err;
2903
2904         DPRINTFN(1, "setting group key %d for vap %d, mode %d "
2905             "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2906             (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2907             (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2908
2909         /* Install the key. */
2910         if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0)
2911                 goto print_err;
2912
2913         /* Set cipher mode. */
2914         if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2915               mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX,
2916               RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX)
2917             != 0)
2918                 goto print_err;
2919
2920         /* Mark this key as valid. */
2921         if (rum_setbits(sc, RT2573_SEC_CSR0,
2922               1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0)
2923                 goto print_err;
2924
2925         return;
2926
2927 print_err:
2928         device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n",
2929             __func__, k->wk_keyix, rvp_id);
2930 }
2931
2932 static void
2933 rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data,
2934     uint8_t rvp_id)
2935 {
2936         struct ieee80211_key *k = &data->key;
2937
2938         DPRINTF("%s: removing group key %d for vap %d\n", __func__,
2939             k->wk_keyix, rvp_id);
2940         rum_clrbits(sc,
2941             rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2942             RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX);
2943         rum_clrbits(sc, RT2573_SEC_CSR0,
2944             rvp_id * RT2573_SKEY_MAX + k->wk_keyix);
2945 }
2946
2947 static void
2948 rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data,
2949     uint8_t rvp_id)
2950 {
2951         struct ieee80211_key *k = &data->key;
2952         uint8_t buf[IEEE80211_ADDR_LEN + 1];
2953         uint8_t mode;
2954
2955         mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2956         if (mode == 0)
2957                 goto print_err;
2958
2959         DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d "
2960             "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2961             (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2962             (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2963
2964         /* Install the key. */
2965         if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0)
2966                 goto print_err;
2967
2968         IEEE80211_ADDR_COPY(buf, k->wk_macaddr);
2969         buf[IEEE80211_ADDR_LEN] = mode;
2970
2971         /* Set transmitter address and cipher mode. */
2972         if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix),
2973               buf, sizeof buf) != 0)
2974                 goto print_err;
2975
2976         /* Enable key table lookup for this vap. */
2977         if (sc->vap_key_count[rvp_id]++ == 0)
2978                 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0)
2979                         goto print_err;
2980
2981         /* Mark this key as valid. */
2982         if (rum_setbits(sc,
2983               k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2984               1 << (k->wk_keyix % 32)) != 0)
2985                 goto print_err;
2986
2987         return;
2988
2989 print_err:
2990         device_printf(sc->sc_dev,
2991             "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix,
2992             rvp_id);
2993 }
2994
2995 static void
2996 rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data,
2997     uint8_t rvp_id)
2998 {
2999         struct ieee80211_key *k = &data->key;
3000
3001         DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix);
3002         rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
3003             1 << (k->wk_keyix % 32));
3004         sc->keys_bmap &= ~(1ULL << k->wk_keyix);
3005         if (--sc->vap_key_count[rvp_id] == 0)
3006                 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id);
3007 }
3008
3009 static int
3010 rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k,
3011     ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
3012 {
3013         struct rum_softc *sc = vap->iv_ic->ic_softc;
3014         uint8_t i;
3015
3016         if (!(&vap->iv_nw_keys[0] <= k &&
3017              k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) {
3018                 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
3019                         RUM_LOCK(sc);
3020                         for (i = 0; i < RT2573_ADDR_MAX; i++) {
3021                                 if ((sc->keys_bmap & (1ULL << i)) == 0) {
3022                                         sc->keys_bmap |= (1ULL << i);
3023                                         *keyix = i;
3024                                         break;
3025                                 }
3026                         }
3027                         RUM_UNLOCK(sc);
3028                         if (i == RT2573_ADDR_MAX) {
3029                                 device_printf(sc->sc_dev,
3030                                     "%s: no free space in the key table\n",
3031                                     __func__);
3032                                 return 0;
3033                         }
3034                 } else
3035                         *keyix = 0;
3036         } else {
3037                 *keyix = ieee80211_crypto_get_key_wepidx(vap, k);
3038         }
3039         *rxkeyix = *keyix;
3040         return 1;
3041 }
3042
3043 static int
3044 rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k)
3045 {
3046         struct rum_softc *sc = vap->iv_ic->ic_softc;
3047         int group;
3048
3049         if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3050                 /* Not for us. */
3051                 return 1;
3052         }
3053
3054         group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID];
3055
3056         return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3057                    group ? rum_group_key_set_cb : rum_pair_key_set_cb);
3058 }
3059
3060 static int
3061 rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
3062 {
3063         struct rum_softc *sc = vap->iv_ic->ic_softc;
3064         int group;
3065
3066         if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3067                 /* Not for us. */
3068                 return 1;
3069         }
3070
3071         group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID];
3072
3073         return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3074                    group ? rum_group_key_del_cb : rum_pair_key_del_cb);
3075 }
3076
3077 static int
3078 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3079     const struct ieee80211_bpf_params *params)
3080 {
3081         struct rum_softc *sc = ni->ni_ic->ic_softc;
3082         int ret;
3083
3084         RUM_LOCK(sc);
3085         /* prevent management frames from being sent if we're not ready */
3086         if (!sc->sc_running) {
3087                 ret = ENETDOWN;
3088                 goto bad;
3089         }
3090         if (sc->tx_nfree < RUM_TX_MINFREE) {
3091                 ret = EIO;
3092                 goto bad;
3093         }
3094
3095         if (params == NULL) {
3096                 /*
3097                  * Legacy path; interpret frame contents to decide
3098                  * precisely how to send the frame.
3099                  */
3100                 if ((ret = rum_tx_mgt(sc, m, ni)) != 0)
3101                         goto bad;
3102         } else {
3103                 /*
3104                  * Caller supplied explicit parameters to use in
3105                  * sending the frame.
3106                  */
3107                 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0)
3108                         goto bad;
3109         }
3110         RUM_UNLOCK(sc);
3111
3112         return 0;
3113 bad:
3114         RUM_UNLOCK(sc);
3115         m_freem(m);
3116         return ret;
3117 }
3118
3119 static void
3120 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
3121 {
3122         struct ieee80211vap *vap = ni->ni_vap;
3123         struct rum_vap *rvp = RUM_VAP(vap);
3124
3125         /* clear statistic registers (STA_CSR0 to STA_CSR5) */
3126         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
3127
3128         usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3129 }
3130
3131 static void
3132 rum_ratectl_timeout(void *arg)
3133 {
3134         struct rum_vap *rvp = arg;
3135         struct ieee80211vap *vap = &rvp->vap;
3136         struct ieee80211com *ic = vap->iv_ic;
3137
3138         ieee80211_runtask(ic, &rvp->ratectl_task);
3139 }
3140
3141 static void
3142 rum_ratectl_task(void *arg, int pending)
3143 {
3144         struct rum_vap *rvp = arg;
3145         struct ieee80211vap *vap = &rvp->vap;
3146         struct rum_softc *sc = vap->iv_ic->ic_softc;
3147         struct ieee80211_ratectl_tx_stats *txs = &sc->sc_txs;
3148         int ok[3], fail;
3149
3150         RUM_LOCK(sc);
3151         /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */
3152         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
3153
3154         ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */
3155         ok[1] = (le32toh(sc->sta[4]) >> 16);    /* TX ok w/ one retry */
3156         ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */
3157         fail =  (le32toh(sc->sta[5]) >> 16);    /* TX retry-fail count */
3158
3159         txs->flags = IEEE80211_RATECTL_TX_STATS_RETRIES;
3160         txs->nframes = ok[0] + ok[1] + ok[2] + fail;
3161         txs->nsuccess = txs->nframes - fail;
3162         /* XXX at least */
3163         txs->nretries = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1);
3164
3165         if (txs->nframes != 0)
3166                 ieee80211_ratectl_tx_update(vap, txs);
3167
3168         /* count TX retry-fail as Tx errors */
3169         if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail);
3170
3171         usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3172         RUM_UNLOCK(sc);
3173 }
3174
3175 static void
3176 rum_scan_start(struct ieee80211com *ic)
3177 {
3178         struct rum_softc *sc = ic->ic_softc;
3179
3180         RUM_LOCK(sc);
3181         rum_abort_tsf_sync(sc);
3182         rum_set_bssid(sc, ieee80211broadcastaddr);
3183         RUM_UNLOCK(sc);
3184
3185 }
3186
3187 static void
3188 rum_scan_end(struct ieee80211com *ic)
3189 {
3190         struct rum_softc *sc = ic->ic_softc;
3191
3192         if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
3193                 RUM_LOCK(sc);
3194                 if (ic->ic_opmode != IEEE80211_M_AHDEMO)
3195                         rum_enable_tsf_sync(sc);
3196                 else
3197                         rum_enable_tsf(sc);
3198                 rum_set_bssid(sc, sc->sc_bssid);
3199                 RUM_UNLOCK(sc);
3200         }
3201 }
3202
3203 static void
3204 rum_set_channel(struct ieee80211com *ic)
3205 {
3206         struct rum_softc *sc = ic->ic_softc;
3207
3208         RUM_LOCK(sc);
3209         rum_set_chan(sc, ic->ic_curchan);
3210         RUM_UNLOCK(sc);
3211 }
3212
3213 static void
3214 rum_getradiocaps(struct ieee80211com *ic,
3215     int maxchans, int *nchans, struct ieee80211_channel chans[])
3216 {
3217         struct rum_softc *sc = ic->ic_softc;
3218         uint8_t bands[IEEE80211_MODE_BYTES];
3219
3220         memset(bands, 0, sizeof(bands));
3221         setbit(bands, IEEE80211_MODE_11B);
3222         setbit(bands, IEEE80211_MODE_11G);
3223         ieee80211_add_channel_list_2ghz(chans, maxchans, nchans,
3224             rum_chan_2ghz, nitems(rum_chan_2ghz), bands, 0);
3225
3226         if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
3227                 setbit(bands, IEEE80211_MODE_11A);
3228                 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
3229                     rum_chan_5ghz, nitems(rum_chan_5ghz), bands, 0);
3230         }
3231 }
3232
3233 static int
3234 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
3235 {
3236         struct ieee80211com *ic = &sc->sc_ic;
3237         int lna, agc, rssi;
3238
3239         lna = (raw >> 5) & 0x3;
3240         agc = raw & 0x1f;
3241
3242         if (lna == 0) {
3243                 /*
3244                  * No RSSI mapping
3245                  *
3246                  * NB: Since RSSI is relative to noise floor, -1 is
3247                  *     adequate for caller to know error happened.
3248                  */
3249                 return -1;
3250         }
3251
3252         rssi = (2 * agc) - RT2573_NOISE_FLOOR;
3253
3254         if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
3255                 rssi += sc->rssi_2ghz_corr;
3256
3257                 if (lna == 1)
3258                         rssi -= 64;
3259                 else if (lna == 2)
3260                         rssi -= 74;
3261                 else if (lna == 3)
3262                         rssi -= 90;
3263         } else {
3264                 rssi += sc->rssi_5ghz_corr;
3265
3266                 if (!sc->ext_5ghz_lna && lna != 1)
3267                         rssi += 4;
3268
3269                 if (lna == 1)
3270                         rssi -= 64;
3271                 else if (lna == 2)
3272                         rssi -= 86;
3273                 else if (lna == 3)
3274                         rssi -= 100;
3275         }
3276         return rssi;
3277 }
3278
3279 static int
3280 rum_pause(struct rum_softc *sc, int timeout)
3281 {
3282
3283         usb_pause_mtx(&sc->sc_mtx, timeout);
3284         return (0);
3285 }
3286
3287 static device_method_t rum_methods[] = {
3288         /* Device interface */
3289         DEVMETHOD(device_probe,         rum_match),
3290         DEVMETHOD(device_attach,        rum_attach),
3291         DEVMETHOD(device_detach,        rum_detach),
3292         DEVMETHOD_END
3293 };
3294
3295 static driver_t rum_driver = {
3296         .name = "rum",
3297         .methods = rum_methods,
3298         .size = sizeof(struct rum_softc),
3299 };
3300
3301 static devclass_t rum_devclass;
3302
3303 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0);
3304 MODULE_DEPEND(rum, wlan, 1, 1, 1);
3305 MODULE_DEPEND(rum, usb, 1, 1, 1);
3306 MODULE_VERSION(rum, 1);
3307 USB_PNP_HOST_INFO(rum_devs);