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 <sys/param.h>
  31 #include <sys/sockio.h>
  32 #include <sys/sysctl.h>
  33 #include <sys/lock.h>
  34 #include <sys/mutex.h>
  35 #include <sys/mbuf.h>
  36 #include <sys/kernel.h>
  37 #include <sys/socket.h>
  38 #include <sys/systm.h>
  39 #include <sys/malloc.h>
  40 #include <sys/module.h>
  41 #include <sys/bus.h>
  42 #include <sys/endian.h>
  43 #include <sys/kdb.h>
  44
  45 #include <machine/bus.h>
  46 #include <machine/resource.h>
  47 #include <sys/rman.h>
  48
  49 #include <net/bpf.h>
  50 #include <net/if.h>
  51 #include <net/if_var.h>
  52 #include <net/if_arp.h>
  53 #include <net/ethernet.h>
  54 #include <net/if_dl.h>
  55 #include <net/if_media.h>
  56 #include <net/if_types.h>
  57
  58 #ifdef INET
  59 #include <netinet/in.h>
  60 #include <netinet/in_systm.h>
  61 #include <netinet/in_var.h>
  62 #include <netinet/if_ether.h>
  63 #include <netinet/ip.h>
  64 #endif
  65
  66 #include <net80211/ieee80211_var.h>
  67 #include <net80211/ieee80211_regdomain.h>
  68 #include <net80211/ieee80211_radiotap.h>
  69 #include <net80211/ieee80211_ratectl.h>
  70
  71 #include <dev/usb/usb.h>
  72 #include <dev/usb/usbdi.h>
  73 #include "usbdevs.h"
  74
  75 #define USB_DEBUG_VAR rum_debug
  76 #include <dev/usb/usb_debug.h>
  77
  78 #include <dev/usb/wlan/if_rumreg.h>
  79 #include <dev/usb/wlan/if_rumvar.h>
  80 #include <dev/usb/wlan/if_rumfw.h>
  81
  82 #ifdef USB_DEBUG
  83 static int rum_debug = 0;
  84
  85 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum");
  86 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0,
  87     "Debug level");
  88 #endif
  89
  90 static const STRUCT_USB_HOST_ID rum_devs[] = {
  91 #define RUM_DEV(v,p)  { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
  92     RUM_DEV(ABOCOM, HWU54DM),
  93     RUM_DEV(ABOCOM, RT2573_2),
  94     RUM_DEV(ABOCOM, RT2573_3),
  95     RUM_DEV(ABOCOM, RT2573_4),
  96     RUM_DEV(ABOCOM, WUG2700),
  97     RUM_DEV(AMIT, CGWLUSB2GO),
  98     RUM_DEV(ASUS, RT2573_1),
  99     RUM_DEV(ASUS, RT2573_2),
 100     RUM_DEV(BELKIN, F5D7050A),
 101     RUM_DEV(BELKIN, F5D9050V3),
 102     RUM_DEV(CISCOLINKSYS, WUSB54GC),
 103     RUM_DEV(CISCOLINKSYS, WUSB54GR),
 104     RUM_DEV(CONCEPTRONIC2, C54RU2),
 105     RUM_DEV(COREGA, CGWLUSB2GL),
 106     RUM_DEV(COREGA, CGWLUSB2GPX),
 107     RUM_DEV(DICKSMITH, CWD854F),
 108     RUM_DEV(DICKSMITH, RT2573),
 109     RUM_DEV(EDIMAX, EW7318USG),
 110     RUM_DEV(DLINK2, DWLG122C1),
 111     RUM_DEV(DLINK2, WUA1340),
 112     RUM_DEV(DLINK2, DWA111),
 113     RUM_DEV(DLINK2, DWA110),
 114     RUM_DEV(GIGABYTE, GNWB01GS),
 115     RUM_DEV(GIGABYTE, GNWI05GS),
 116     RUM_DEV(GIGASET, RT2573),
 117     RUM_DEV(GOODWAY, RT2573),
 118     RUM_DEV(GUILLEMOT, HWGUSB254LB),
 119     RUM_DEV(GUILLEMOT, HWGUSB254V2AP),
 120     RUM_DEV(HUAWEI3COM, WUB320G),
 121     RUM_DEV(MELCO, G54HP),
 122     RUM_DEV(MELCO, SG54HP),
 123     RUM_DEV(MELCO, SG54HG),
 124     RUM_DEV(MELCO, WLIUCG),
 125     RUM_DEV(MELCO, WLRUCG),
 126     RUM_DEV(MELCO, WLRUCGAOSS),
 127     RUM_DEV(MSI, RT2573_1),
 128     RUM_DEV(MSI, RT2573_2),
 129     RUM_DEV(MSI, RT2573_3),
 130     RUM_DEV(MSI, RT2573_4),
 131     RUM_DEV(NOVATECH, RT2573),
 132     RUM_DEV(PLANEX2, GWUS54HP),
 133     RUM_DEV(PLANEX2, GWUS54MINI2),
 134     RUM_DEV(PLANEX2, GWUSMM),
 135     RUM_DEV(QCOM, RT2573),
 136     RUM_DEV(QCOM, RT2573_2),
 137     RUM_DEV(QCOM, RT2573_3),
 138     RUM_DEV(RALINK, RT2573),
 139     RUM_DEV(RALINK, RT2573_2),
 140     RUM_DEV(RALINK, RT2671),
 141     RUM_DEV(SITECOMEU, WL113R2),
 142     RUM_DEV(SITECOMEU, WL172),
 143     RUM_DEV(SPARKLAN, RT2573),
 144     RUM_DEV(SURECOM, RT2573),
 145 #undef RUM_DEV
 146 };
 147
 148 static device_probe_t rum_match;
 149 static device_attach_t rum_attach;
 150 static device_detach_t rum_detach;
 151
 152 static usb_callback_t rum_bulk_read_callback;
 153 static usb_callback_t rum_bulk_write_callback;
 154
 155 static usb_error_t      rum_do_request(struct rum_softc *sc,
 156                             struct usb_device_request *req, void *data);
 157 static usb_error_t      rum_do_mcu_request(struct rum_softc *sc, int);
 158 static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
 159                             const char [IFNAMSIZ], int, enum ieee80211_opmode,
 160                             int, const uint8_t [IEEE80211_ADDR_LEN],
 161                             const uint8_t [IEEE80211_ADDR_LEN]);
 162 static void             rum_vap_delete(struct ieee80211vap *);
 163 static void             rum_cmdq_cb(void *, int);
 164 static int              rum_cmd_sleepable(struct rum_softc *, const void *,
 165                             size_t, uint8_t, CMD_FUNC_PROTO);
 166 static void             rum_tx_free(struct rum_tx_data *, int);
 167 static void             rum_setup_tx_list(struct rum_softc *);
 168 static void             rum_reset_tx_list(struct rum_softc *,
 169                             struct ieee80211vap *);
 170 static void             rum_unsetup_tx_list(struct rum_softc *);
 171 static void             rum_beacon_miss(struct ieee80211vap *);
 172 static void             rum_sta_recv_mgmt(struct ieee80211_node *,
 173                             struct mbuf *, int,
 174                             const struct ieee80211_rx_stats *, int, int);
 175 static int              rum_set_power_state(struct rum_softc *, int);
 176 static int              rum_newstate(struct ieee80211vap *,
 177                             enum ieee80211_state, int);
 178 static uint8_t          rum_crypto_mode(struct rum_softc *, u_int, int);
 179 static void             rum_setup_tx_desc(struct rum_softc *,
 180                             struct rum_tx_desc *, struct ieee80211_key *,
 181                             uint32_t, uint8_t, uint8_t, int, int, int);
 182 static uint32_t         rum_tx_crypto_flags(struct rum_softc *,
 183                             struct ieee80211_node *,
 184                             const struct ieee80211_key *);
 185 static int              rum_tx_mgt(struct rum_softc *, struct mbuf *,
 186                             struct ieee80211_node *);
 187 static int              rum_tx_raw(struct rum_softc *, struct mbuf *,
 188                             struct ieee80211_node *,
 189                             const struct ieee80211_bpf_params *);
 190 static int              rum_tx_data(struct rum_softc *, struct mbuf *,
 191                             struct ieee80211_node *);
 192 static int              rum_transmit(struct ieee80211com *, struct mbuf *);
 193 static void             rum_start(struct rum_softc *);
 194 static void             rum_parent(struct ieee80211com *);
 195 static void             rum_eeprom_read(struct rum_softc *, uint16_t, void *,
 196                             int);
 197 static uint32_t         rum_read(struct rum_softc *, uint16_t);
 198 static void             rum_read_multi(struct rum_softc *, uint16_t, void *,
 199                             int);
 200 static usb_error_t      rum_write(struct rum_softc *, uint16_t, uint32_t);
 201 static usb_error_t      rum_write_multi(struct rum_softc *, uint16_t, void *,
 202                             size_t);
 203 static usb_error_t      rum_setbits(struct rum_softc *, uint16_t, uint32_t);
 204 static usb_error_t      rum_clrbits(struct rum_softc *, uint16_t, uint32_t);
 205 static usb_error_t      rum_modbits(struct rum_softc *, uint16_t, uint32_t,
 206                             uint32_t);
 207 static int              rum_bbp_busy(struct rum_softc *);
 208 static void             rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
 209 static uint8_t          rum_bbp_read(struct rum_softc *, uint8_t);
 210 static void             rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
 211 static void             rum_select_antenna(struct rum_softc *);
 212 static void             rum_enable_mrr(struct rum_softc *);
 213 static void             rum_set_txpreamble(struct rum_softc *);
 214 static void             rum_set_basicrates(struct rum_softc *);
 215 static void             rum_select_band(struct rum_softc *,
 216                             struct ieee80211_channel *);
 217 static void             rum_set_chan(struct rum_softc *,
 218                             struct ieee80211_channel *);
 219 static void             rum_set_maxretry(struct rum_softc *,
 220                             struct ieee80211vap *);
 221 static int              rum_enable_tsf_sync(struct rum_softc *);
 222 static void             rum_enable_tsf(struct rum_softc *);
 223 static void             rum_abort_tsf_sync(struct rum_softc *);
 224 static void             rum_get_tsf(struct rum_softc *, uint64_t *);
 225 static void             rum_update_slot_cb(struct rum_softc *,
 226                             union sec_param *, uint8_t);
 227 static void             rum_update_slot(struct ieee80211com *);
 228 static int              rum_wme_update(struct ieee80211com *);
 229 static void             rum_set_bssid(struct rum_softc *, const uint8_t *);
 230 static void             rum_set_macaddr(struct rum_softc *, const uint8_t *);
 231 static void             rum_update_mcast(struct ieee80211com *);
 232 static void             rum_update_promisc(struct ieee80211com *);
 233 static void             rum_setpromisc(struct rum_softc *);
 234 static const char       *rum_get_rf(int);
 235 static void             rum_read_eeprom(struct rum_softc *);
 236 static int              rum_bbp_wakeup(struct rum_softc *);
 237 static int              rum_bbp_init(struct rum_softc *);
 238 static void             rum_clr_shkey_regs(struct rum_softc *);
 239 static int              rum_init(struct rum_softc *);
 240 static void             rum_stop(struct rum_softc *);
 241 static void             rum_load_microcode(struct rum_softc *, const uint8_t *,
 242                             size_t);
 243 static int              rum_set_sleep_time(struct rum_softc *, uint16_t);
 244 static int              rum_reset(struct ieee80211vap *, u_long);
 245 static int              rum_set_beacon(struct rum_softc *,
 246                             struct ieee80211vap *);
 247 static int              rum_alloc_beacon(struct rum_softc *,
 248                             struct ieee80211vap *);
 249 static void             rum_update_beacon_cb(struct rum_softc *,
 250                             union sec_param *, uint8_t);
 251 static void             rum_update_beacon(struct ieee80211vap *, int);
 252 static int              rum_common_key_set(struct rum_softc *,
 253                             struct ieee80211_key *, uint16_t);
 254 static void             rum_group_key_set_cb(struct rum_softc *,
 255                             union sec_param *, uint8_t);
 256 static void             rum_group_key_del_cb(struct rum_softc *,
 257                             union sec_param *, uint8_t);
 258 static void             rum_pair_key_set_cb(struct rum_softc *,
 259                             union sec_param *, uint8_t);
 260 static void             rum_pair_key_del_cb(struct rum_softc *,
 261                             union sec_param *, uint8_t);
 262 static int              rum_key_alloc(struct ieee80211vap *,
 263                             struct ieee80211_key *, ieee80211_keyix *,
 264                             ieee80211_keyix *);
 265 static int              rum_key_set(struct ieee80211vap *,
 266                             const struct ieee80211_key *);
 267 static int              rum_key_delete(struct ieee80211vap *,
 268                             const struct ieee80211_key *);
 269 static int              rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
 270                             const struct ieee80211_bpf_params *);
 271 static void             rum_scan_start(struct ieee80211com *);
 272 static void             rum_scan_end(struct ieee80211com *);
 273 static void             rum_set_channel(struct ieee80211com *);
 274 static void             rum_getradiocaps(struct ieee80211com *, int, int *,
 275                             struct ieee80211_channel[]);
 276 static int              rum_get_rssi(struct rum_softc *, uint8_t);
 277 static void             rum_ratectl_start(struct rum_softc *,
 278                             struct ieee80211_node *);
 279 static void             rum_ratectl_timeout(void *);
 280 static void             rum_ratectl_task(void *, int);
 281 static int              rum_pause(struct rum_softc *, int);
 282
 283 static const struct {
 284         uint32_t        reg;
 285         uint32_t        val;
 286 } rum_def_mac[] = {
 287         { RT2573_TXRX_CSR0,  0x025fb032 },
 288         { RT2573_TXRX_CSR1,  0x9eaa9eaf },
 289         { RT2573_TXRX_CSR2,  0x8a8b8c8d },
 290         { RT2573_TXRX_CSR3,  0x00858687 },
 291         { RT2573_TXRX_CSR7,  0x2e31353b },
 292         { RT2573_TXRX_CSR8,  0x2a2a2a2c },
 293         { RT2573_TXRX_CSR15, 0x0000000f },
 294         { RT2573_MAC_CSR6,   0x00000fff },
 295         { RT2573_MAC_CSR8,   0x016c030a },
 296         { RT2573_MAC_CSR10,  0x00000718 },
 297         { RT2573_MAC_CSR12,  0x00000004 },
 298         { RT2573_MAC_CSR13,  0x00007f00 },
 299         { RT2573_SEC_CSR2,   0x00000000 },
 300         { RT2573_SEC_CSR3,   0x00000000 },
 301         { RT2573_SEC_CSR4,   0x00000000 },
 302         { RT2573_PHY_CSR1,   0x000023b0 },
 303         { RT2573_PHY_CSR5,   0x00040a06 },
 304         { RT2573_PHY_CSR6,   0x00080606 },
 305         { RT2573_PHY_CSR7,   0x00000408 },
 306         { RT2573_AIFSN_CSR,  0x00002273 },
 307         { RT2573_CWMIN_CSR,  0x00002344 },
 308         { RT2573_CWMAX_CSR,  0x000034aa }
 309 };
 310
 311 static const struct {
 312         uint8_t reg;
 313         uint8_t val;
 314 } rum_def_bbp[] = {
 315         {   3, 0x80 },
 316         {  15, 0x30 },
 317         {  17, 0x20 },
 318         {  21, 0xc8 },
 319         {  22, 0x38 },
 320         {  23, 0x06 },
 321         {  24, 0xfe },
 322         {  25, 0x0a },
 323         {  26, 0x0d },
 324         {  32, 0x0b },
 325         {  34, 0x12 },
 326         {  37, 0x07 },
 327         {  39, 0xf8 },
 328         {  41, 0x60 },
 329         {  53, 0x10 },
 330         {  54, 0x18 },
 331         {  60, 0x10 },
 332         {  61, 0x04 },
 333         {  62, 0x04 },
 334         {  75, 0xfe },
 335         {  86, 0xfe },
 336         {  88, 0xfe },
 337         {  90, 0x0f },
 338         {  99, 0x00 },
 339         { 102, 0x16 },
 340         { 107, 0x04 }
 341 };
 342
 343 static const uint8_t rum_chan_2ghz[] =
 344         { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 };
 345
 346 static const uint8_t rum_chan_5ghz[] =
 347         { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64,
 348           100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
 349           149, 153, 157, 161, 165 };
 350
 351 static const struct rfprog {
 352         uint8_t         chan;
 353         uint32_t        r1, r2, r3, r4;
 354 }  rum_rf5226[] = {
 355         {   1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
 356         {   2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
 357         {   3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
 358         {   4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
 359         {   5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
 360         {   6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
 361         {   7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
 362         {   8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
 363         {   9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
 364         {  10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
 365         {  11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
 366         {  12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
 367         {  13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
 368         {  14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
 369
 370         {  34, 0x00b03, 0x20266, 0x36014, 0x30282 },
 371         {  38, 0x00b03, 0x20267, 0x36014, 0x30284 },
 372         {  42, 0x00b03, 0x20268, 0x36014, 0x30286 },
 373         {  46, 0x00b03, 0x20269, 0x36014, 0x30288 },
 374
 375         {  36, 0x00b03, 0x00266, 0x26014, 0x30288 },
 376         {  40, 0x00b03, 0x00268, 0x26014, 0x30280 },
 377         {  44, 0x00b03, 0x00269, 0x26014, 0x30282 },
 378         {  48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
 379         {  52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
 380         {  56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
 381         {  60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
 382         {  64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
 383
 384         { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
 385         { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
 386         { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
 387         { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
 388         { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
 389         { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
 390         { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
 391         { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
 392         { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
 393         { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
 394         { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
 395
 396         { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
 397         { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
 398         { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
 399         { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
 400         { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
 401 }, rum_rf5225[] = {
 402         {   1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
 403         {   2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
 404         {   3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
 405         {   4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
 406         {   5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
 407         {   6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
 408         {   7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
 409         {   8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
 410         {   9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
 411         {  10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
 412         {  11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
 413         {  12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
 414         {  13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
 415         {  14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
 416
 417         {  34, 0x00b33, 0x01266, 0x26014, 0x30282 },
 418         {  38, 0x00b33, 0x01267, 0x26014, 0x30284 },
 419         {  42, 0x00b33, 0x01268, 0x26014, 0x30286 },
 420         {  46, 0x00b33, 0x01269, 0x26014, 0x30288 },
 421
 422         {  36, 0x00b33, 0x01266, 0x26014, 0x30288 },
 423         {  40, 0x00b33, 0x01268, 0x26014, 0x30280 },
 424         {  44, 0x00b33, 0x01269, 0x26014, 0x30282 },
 425         {  48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
 426         {  52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
 427         {  56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
 428         {  60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
 429         {  64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
 430
 431         { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
 432         { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
 433         { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
 434         { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
 435         { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
 436         { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
 437         { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
 438         { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
 439         { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
 440         { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
 441         { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
 442
 443         { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
 444         { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
 445         { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
 446         { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
 447         { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
 448 };
 449
 450 static const struct usb_config rum_config[RUM_N_TRANSFER] = {
 451         [RUM_BULK_WR] = {
 452                 .type = UE_BULK,
 453                 .endpoint = UE_ADDR_ANY,
 454                 .direction = UE_DIR_OUT,
 455                 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
 456                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 457                 .callback = rum_bulk_write_callback,
 458                 .timeout = 5000,        /* ms */
 459         },
 460         [RUM_BULK_RD] = {
 461                 .type = UE_BULK,
 462                 .endpoint = UE_ADDR_ANY,
 463                 .direction = UE_DIR_IN,
 464                 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
 465                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 466                 .callback = rum_bulk_read_callback,
 467         },
 468 };
 469
 470 static int
 471 rum_match(device_t self)
 472 {
 473         struct usb_attach_arg *uaa = device_get_ivars(self);
 474
 475         if (uaa->usb_mode != USB_MODE_HOST)
 476                 return (ENXIO);
 477         if (uaa->info.bConfigIndex != 0)
 478                 return (ENXIO);
 479         if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
 480                 return (ENXIO);
 481
 482         return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
 483 }
 484
 485 static int
 486 rum_attach(device_t self)
 487 {
 488         struct usb_attach_arg *uaa = device_get_ivars(self);
 489         struct rum_softc *sc = device_get_softc(self);
 490         struct ieee80211com *ic = &sc->sc_ic;
 491         uint32_t tmp;
 492         uint8_t iface_index;
 493         int error, ntries;
 494
 495         device_set_usb_desc(self);
 496         sc->sc_udev = uaa->device;
 497         sc->sc_dev = self;
 498
 499         RUM_LOCK_INIT(sc);
 500         RUM_CMDQ_LOCK_INIT(sc);
 501         mbufq_init(&sc->sc_snd, ifqmaxlen);
 502
 503         iface_index = RT2573_IFACE_INDEX;
 504         error = usbd_transfer_setup(uaa->device, &iface_index,
 505             sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
 506         if (error) {
 507                 device_printf(self, "could not allocate USB transfers, "
 508                     "err=%s\n", usbd_errstr(error));
 509                 goto detach;
 510         }
 511
 512         RUM_LOCK(sc);
 513         /* retrieve RT2573 rev. no */
 514         for (ntries = 0; ntries < 100; ntries++) {
 515                 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
 516                         break;
 517                 if (rum_pause(sc, hz / 100))
 518                         break;
 519         }
 520         if (ntries == 100) {
 521                 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
 522                 RUM_UNLOCK(sc);
 523                 goto detach;
 524         }
 525
 526         /* retrieve MAC address and various other things from EEPROM */
 527         rum_read_eeprom(sc);
 528
 529         device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
 530             tmp, rum_get_rf(sc->rf_rev));
 531
 532         rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
 533         RUM_UNLOCK(sc);
 534
 535         ic->ic_softc = sc;
 536         ic->ic_name = device_get_nameunit(self);
 537         ic->ic_phytype = IEEE80211_T_OFDM;      /* not only, but not used */
 538
 539         /* set device capabilities */
 540         ic->ic_caps =
 541               IEEE80211_C_STA           /* station mode supported */
 542             | IEEE80211_C_IBSS          /* IBSS mode supported */
 543             | IEEE80211_C_MONITOR       /* monitor mode supported */
 544             | IEEE80211_C_HOSTAP        /* HostAp mode supported */
 545             | IEEE80211_C_AHDEMO        /* adhoc demo mode */
 546             | IEEE80211_C_TXPMGT        /* tx power management */
 547             | IEEE80211_C_SHPREAMBLE    /* short preamble supported */
 548             | IEEE80211_C_SHSLOT        /* short slot time supported */
 549             | IEEE80211_C_BGSCAN        /* bg scanning supported */
 550             | IEEE80211_C_WPA           /* 802.11i */
 551             | IEEE80211_C_WME           /* 802.11e */
 552             | IEEE80211_C_PMGT          /* Station-side power mgmt */
 553             | IEEE80211_C_SWSLEEP       /* net80211 managed power mgmt */
 554             ;
 555
 556         ic->ic_cryptocaps =
 557             IEEE80211_CRYPTO_WEP |
 558             IEEE80211_CRYPTO_AES_CCM |
 559             IEEE80211_CRYPTO_TKIPMIC |
 560             IEEE80211_CRYPTO_TKIP;
 561
 562         rum_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
 563             ic->ic_channels);
 564
 565         ieee80211_ifattach(ic);
 566         ic->ic_update_promisc = rum_update_promisc;
 567         ic->ic_raw_xmit = rum_raw_xmit;
 568         ic->ic_scan_start = rum_scan_start;
 569         ic->ic_scan_end = rum_scan_end;
 570         ic->ic_set_channel = rum_set_channel;
 571         ic->ic_getradiocaps = rum_getradiocaps;
 572         ic->ic_transmit = rum_transmit;
 573         ic->ic_parent = rum_parent;
 574         ic->ic_vap_create = rum_vap_create;
 575         ic->ic_vap_delete = rum_vap_delete;
 576         ic->ic_updateslot = rum_update_slot;
 577         ic->ic_wme.wme_update = rum_wme_update;
 578         ic->ic_update_mcast = rum_update_mcast;
 579
 580         ieee80211_radiotap_attach(ic,
 581             &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
 582                 RT2573_TX_RADIOTAP_PRESENT,
 583             &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
 584                 RT2573_RX_RADIOTAP_PRESENT);
 585
 586         TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc);
 587
 588         if (bootverbose)
 589                 ieee80211_announce(ic);
 590
 591         return (0);
 592
 593 detach:
 594         rum_detach(self);
 595         return (ENXIO);                 /* failure */
 596 }
 597
 598 static int
 599 rum_detach(device_t self)
 600 {
 601         struct rum_softc *sc = device_get_softc(self);
 602         struct ieee80211com *ic = &sc->sc_ic;
 603
 604         /* Prevent further ioctls */
 605         RUM_LOCK(sc);
 606         sc->sc_detached = 1;
 607         RUM_UNLOCK(sc);
 608
 609         /* stop all USB transfers */
 610         usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
 611
 612         /* free TX list, if any */
 613         RUM_LOCK(sc);
 614         rum_unsetup_tx_list(sc);
 615         RUM_UNLOCK(sc);
 616
 617         if (ic->ic_softc == sc) {
 618                 ieee80211_draintask(ic, &sc->cmdq_task);
 619                 ieee80211_ifdetach(ic);
 620         }
 621
 622         mbufq_drain(&sc->sc_snd);
 623         RUM_CMDQ_LOCK_DESTROY(sc);
 624         RUM_LOCK_DESTROY(sc);
 625
 626         return (0);
 627 }
 628
 629 static usb_error_t
 630 rum_do_request(struct rum_softc *sc,
 631     struct usb_device_request *req, void *data)
 632 {
 633         usb_error_t err;
 634         int ntries = 10;
 635
 636         while (ntries--) {
 637                 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
 638                     req, data, 0, NULL, 250 /* ms */);
 639                 if (err == 0)
 640                         break;
 641
 642                 DPRINTFN(1, "Control request failed, %s (retrying)\n",
 643                     usbd_errstr(err));
 644                 if (rum_pause(sc, hz / 100))
 645                         break;
 646         }
 647         return (err);
 648 }
 649
 650 static usb_error_t
 651 rum_do_mcu_request(struct rum_softc *sc, int request)
 652 {
 653         struct usb_device_request req;
 654
 655         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
 656         req.bRequest = RT2573_MCU_CNTL;
 657         USETW(req.wValue, request);
 658         USETW(req.wIndex, 0);
 659         USETW(req.wLength, 0);
 660
 661         return (rum_do_request(sc, &req, NULL));
 662 }
 663
 664 static struct ieee80211vap *
 665 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
 666     enum ieee80211_opmode opmode, int flags,
 667     const uint8_t bssid[IEEE80211_ADDR_LEN],
 668     const uint8_t mac[IEEE80211_ADDR_LEN])
 669 {
 670         struct rum_softc *sc = ic->ic_softc;
 671         struct rum_vap *rvp;
 672         struct ieee80211vap *vap;
 673
 674         if (!TAILQ_EMPTY(&ic->ic_vaps))         /* only one at a time */
 675                 return NULL;
 676         rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO);
 677         vap = &rvp->vap;
 678         /* enable s/w bmiss handling for sta mode */
 679
 680         if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
 681             flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
 682                 /* out of memory */
 683                 free(rvp, M_80211_VAP);
 684                 return (NULL);
 685         }
 686
 687         /* override state transition machine */
 688         rvp->newstate = vap->iv_newstate;
 689         vap->iv_newstate = rum_newstate;
 690         vap->iv_key_alloc = rum_key_alloc;
 691         vap->iv_key_set = rum_key_set;
 692         vap->iv_key_delete = rum_key_delete;
 693         vap->iv_update_beacon = rum_update_beacon;
 694         vap->iv_reset = rum_reset;
 695         vap->iv_max_aid = RT2573_ADDR_MAX;
 696
 697         if (opmode == IEEE80211_M_STA) {
 698                 /*
 699                  * Move device to the sleep state when
 700                  * beacon is received and there is no data for us.
 701                  *
 702                  * Used only for IEEE80211_S_SLEEP state.
 703                  */
 704                 rvp->recv_mgmt = vap->iv_recv_mgmt;
 705                 vap->iv_recv_mgmt = rum_sta_recv_mgmt;
 706
 707                 /* Ignored while sleeping. */
 708                 rvp->bmiss = vap->iv_bmiss;
 709                 vap->iv_bmiss = rum_beacon_miss;
 710         }
 711
 712         usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0);
 713         TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
 714         ieee80211_ratectl_init(vap);
 715         ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
 716         /* complete setup */
 717         ieee80211_vap_attach(vap, ieee80211_media_change,
 718             ieee80211_media_status, mac);
 719         ic->ic_opmode = opmode;
 720         return vap;
 721 }
 722
 723 static void
 724 rum_vap_delete(struct ieee80211vap *vap)
 725 {
 726         struct rum_vap *rvp = RUM_VAP(vap);
 727         struct ieee80211com *ic = vap->iv_ic;
 728         struct rum_softc *sc = ic->ic_softc;
 729
 730         /* Put vap into INIT state. */
 731         ieee80211_new_state(vap, IEEE80211_S_INIT, -1);
 732         ieee80211_draintask(ic, &vap->iv_nstate_task);
 733
 734         RUM_LOCK(sc);
 735         /* Cancel any unfinished Tx. */
 736         rum_reset_tx_list(sc, vap);
 737         RUM_UNLOCK(sc);
 738
 739         usb_callout_drain(&rvp->ratectl_ch);
 740         ieee80211_draintask(ic, &rvp->ratectl_task);
 741         ieee80211_ratectl_deinit(vap);
 742         ieee80211_vap_detach(vap);
 743         m_freem(rvp->bcn_mbuf);
 744         free(rvp, M_80211_VAP);
 745 }
 746
 747 static void
 748 rum_cmdq_cb(void *arg, int pending)
 749 {
 750         struct rum_softc *sc = arg;
 751         struct rum_cmdq *rc;
 752
 753         RUM_CMDQ_LOCK(sc);
 754         while (sc->cmdq[sc->cmdq_first].func != NULL) {
 755                 rc = &sc->cmdq[sc->cmdq_first];
 756                 RUM_CMDQ_UNLOCK(sc);
 757
 758                 RUM_LOCK(sc);
 759                 rc->func(sc, &rc->data, rc->rvp_id);
 760                 RUM_UNLOCK(sc);
 761
 762                 RUM_CMDQ_LOCK(sc);
 763                 memset(rc, 0, sizeof (*rc));
 764                 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE;
 765         }
 766         RUM_CMDQ_UNLOCK(sc);
 767 }
 768
 769 static int
 770 rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len,
 771     uint8_t rvp_id, CMD_FUNC_PROTO)
 772 {
 773         struct ieee80211com *ic = &sc->sc_ic;
 774
 775         KASSERT(len <= sizeof(union sec_param), ("buffer overflow"));
 776
 777         RUM_CMDQ_LOCK(sc);
 778         if (sc->cmdq[sc->cmdq_last].func != NULL) {
 779                 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__);
 780                 RUM_CMDQ_UNLOCK(sc);
 781
 782                 return EAGAIN;
 783         }
 784
 785         if (ptr != NULL)
 786                 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len);
 787         sc->cmdq[sc->cmdq_last].rvp_id = rvp_id;
 788         sc->cmdq[sc->cmdq_last].func = func;
 789         sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE;
 790         RUM_CMDQ_UNLOCK(sc);
 791
 792         ieee80211_runtask(ic, &sc->cmdq_task);
 793
 794         return 0;
 795 }
 796
 797 static void
 798 rum_tx_free(struct rum_tx_data *data, int txerr)
 799 {
 800         struct rum_softc *sc = data->sc;
 801
 802         if (data->m != NULL) {
 803                 ieee80211_tx_complete(data->ni, data->m, txerr);
 804                 data->m = NULL;
 805                 data->ni = NULL;
 806         }
 807         STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 808         sc->tx_nfree++;
 809 }
 810
 811 static void
 812 rum_setup_tx_list(struct rum_softc *sc)
 813 {
 814         struct rum_tx_data *data;
 815         int i;
 816
 817         sc->tx_nfree = 0;
 818         STAILQ_INIT(&sc->tx_q);
 819         STAILQ_INIT(&sc->tx_free);
 820
 821         for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
 822                 data = &sc->tx_data[i];
 823
 824                 data->sc = sc;
 825                 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 826                 sc->tx_nfree++;
 827         }
 828 }
 829
 830 static void
 831 rum_reset_tx_list(struct rum_softc *sc, struct ieee80211vap *vap)
 832 {
 833         struct rum_tx_data *data, *tmp;
 834
 835         KASSERT(vap != NULL, ("%s: vap is NULL\n", __func__));
 836
 837         STAILQ_FOREACH_SAFE(data, &sc->tx_q, next, tmp) {
 838                 if (data->ni != NULL && data->ni->ni_vap == vap) {
 839                         ieee80211_free_node(data->ni);
 840                         data->ni = NULL;
 841
 842                         KASSERT(data->m != NULL, ("%s: m is NULL\n",
 843                             __func__));
 844                         m_freem(data->m);
 845                         data->m = NULL;
 846
 847                         STAILQ_REMOVE(&sc->tx_q, data, rum_tx_data, next);
 848                         STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 849                         sc->tx_nfree++;
 850                 }
 851         }
 852 }
 853
 854 static void
 855 rum_unsetup_tx_list(struct rum_softc *sc)
 856 {
 857         struct rum_tx_data *data;
 858         int i;
 859
 860         /* make sure any subsequent use of the queues will fail */
 861         sc->tx_nfree = 0;
 862         STAILQ_INIT(&sc->tx_q);
 863         STAILQ_INIT(&sc->tx_free);
 864
 865         /* free up all node references and mbufs */
 866         for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
 867                 data = &sc->tx_data[i];
 868
 869                 if (data->m != NULL) {
 870                         m_freem(data->m);
 871                         data->m = NULL;
 872                 }
 873                 if (data->ni != NULL) {
 874                         ieee80211_free_node(data->ni);
 875                         data->ni = NULL;
 876                 }
 877         }
 878 }
 879
 880 static void
 881 rum_beacon_miss(struct ieee80211vap *vap)
 882 {
 883         struct ieee80211com *ic = vap->iv_ic;
 884         struct rum_softc *sc = ic->ic_softc;
 885         struct rum_vap *rvp = RUM_VAP(vap);
 886         int sleep;
 887
 888         RUM_LOCK(sc);
 889         if (sc->sc_sleeping && sc->sc_sleep_end < ticks) {
 890                 DPRINTFN(12, "dropping 'sleeping' bit, "
 891                     "device must be awake now\n");
 892
 893                 sc->sc_sleeping = 0;
 894         }
 895
 896         sleep = sc->sc_sleeping;
 897         RUM_UNLOCK(sc);
 898
 899         if (!sleep)
 900                 rvp->bmiss(vap);
 901 #ifdef USB_DEBUG
 902         else
 903                 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n");
 904 #endif
 905 }
 906
 907 static void
 908 rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype,
 909     const struct ieee80211_rx_stats *rxs,
 910     int rssi, int nf)
 911 {
 912         struct ieee80211vap *vap = ni->ni_vap;
 913         struct rum_softc *sc = vap->iv_ic->ic_softc;
 914         struct rum_vap *rvp = RUM_VAP(vap);
 915
 916         if (vap->iv_state == IEEE80211_S_SLEEP &&
 917             subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
 918                 RUM_LOCK(sc);
 919                 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n",
 920                     !!(sc->last_rx_flags & RT2573_RX_MYBSS),
 921                     sc->last_rx_flags);
 922
 923                 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) ==
 924                     (RT2573_RX_MYBSS | RT2573_RX_BC)) {
 925                         /*
 926                          * Put it to sleep here; in case if there is a data
 927                          * for us, iv_recv_mgmt() will wakeup the device via
 928                          * SLEEP -> RUN state transition.
 929                          */
 930                         rum_set_power_state(sc, 1);
 931                 }
 932                 RUM_UNLOCK(sc);
 933         }
 934
 935         rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf);
 936 }
 937
 938 static int
 939 rum_set_power_state(struct rum_softc *sc, int sleep)
 940 {
 941         usb_error_t uerror;
 942
 943         RUM_LOCK_ASSERT(sc);
 944
 945         DPRINTFN(12, "moving to %s state (sleep time %u)\n",
 946             sleep ? "sleep" : "awake", sc->sc_sleep_time);
 947
 948         uerror = rum_do_mcu_request(sc,
 949             sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP);
 950         if (uerror != USB_ERR_NORMAL_COMPLETION) {
 951                 device_printf(sc->sc_dev,
 952                     "%s: could not change power state: %s\n",
 953                     __func__, usbd_errstr(uerror));
 954                 return (EIO);
 955         }
 956
 957         sc->sc_sleeping = !!sleep;
 958         sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0;
 959
 960         return (0);
 961 }
 962
 963 static int
 964 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
 965 {
 966         struct rum_vap *rvp = RUM_VAP(vap);
 967         struct ieee80211com *ic = vap->iv_ic;
 968         struct rum_softc *sc = ic->ic_softc;
 969         const struct ieee80211_txparam *tp;
 970         enum ieee80211_state ostate;
 971         struct ieee80211_node *ni;
 972         usb_error_t uerror;
 973         int ret = 0;
 974
 975         ostate = vap->iv_state;
 976         DPRINTF("%s -> %s\n",
 977                 ieee80211_state_name[ostate],
 978                 ieee80211_state_name[nstate]);
 979
 980         IEEE80211_UNLOCK(ic);
 981         RUM_LOCK(sc);
 982         usb_callout_stop(&rvp->ratectl_ch);
 983
 984         if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) {
 985                 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
 986                 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
 987
 988                 /*
 989                  * Ignore any errors;
 990                  * any subsequent TX will wakeup it anyway
 991                  */
 992                 (void) rum_set_power_state(sc, 0);
 993         }
 994
 995         switch (nstate) {
 996         case IEEE80211_S_INIT:
 997                 if (ostate == IEEE80211_S_RUN)
 998                         rum_abort_tsf_sync(sc);
 999
1000                 break;
1001
1002         case IEEE80211_S_RUN:
1003                 if (ostate == IEEE80211_S_SLEEP)
1004                         break;          /* already handled */
1005
1006                 ni = ieee80211_ref_node(vap->iv_bss);
1007
1008                 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
1009                         if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
1010                             ni->ni_chan == IEEE80211_CHAN_ANYC) {
1011                                 ret = EINVAL;
1012                                 goto run_fail;
1013                         }
1014                         rum_update_slot_cb(sc, NULL, 0);
1015                         rum_enable_mrr(sc);
1016                         rum_set_txpreamble(sc);
1017                         rum_set_basicrates(sc);
1018                         rum_set_maxretry(sc, vap);
1019                         IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
1020                         rum_set_bssid(sc, sc->sc_bssid);
1021                 }
1022
1023                 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
1024                     vap->iv_opmode == IEEE80211_M_IBSS) {
1025                         if ((ret = rum_alloc_beacon(sc, vap)) != 0)
1026                                 goto run_fail;
1027                 }
1028
1029                 if (vap->iv_opmode != IEEE80211_M_MONITOR &&
1030                     vap->iv_opmode != IEEE80211_M_AHDEMO) {
1031                         if ((ret = rum_enable_tsf_sync(sc)) != 0)
1032                                 goto run_fail;
1033                 } else
1034                         rum_enable_tsf(sc);
1035
1036                 /* enable automatic rate adaptation */
1037                 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1038                 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
1039                         rum_ratectl_start(sc, ni);
1040 run_fail:
1041                 ieee80211_free_node(ni);
1042                 break;
1043         case IEEE80211_S_SLEEP:
1044                 /* Implemented for STA mode only. */
1045                 if (vap->iv_opmode != IEEE80211_M_STA)
1046                         break;
1047
1048                 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
1049                 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1050                         ret = EIO;
1051                         break;
1052                 }
1053
1054                 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
1055                 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1056                         ret = EIO;
1057                         break;
1058                 }
1059
1060                 ret = rum_set_power_state(sc, 1);
1061                 if (ret != 0) {
1062                         device_printf(sc->sc_dev,
1063                             "%s: could not move to the SLEEP state: %s\n",
1064                             __func__, usbd_errstr(uerror));
1065                 }
1066                 break;
1067         default:
1068                 break;
1069         }
1070         RUM_UNLOCK(sc);
1071         IEEE80211_LOCK(ic);
1072         return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret);
1073 }
1074
1075 static void
1076 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
1077 {
1078         struct rum_softc *sc = usbd_xfer_softc(xfer);
1079         struct ieee80211vap *vap;
1080         struct rum_tx_data *data;
1081         struct mbuf *m;
1082         struct usb_page_cache *pc;
1083         unsigned int len;
1084         int actlen, sumlen;
1085
1086         usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1087
1088         switch (USB_GET_STATE(xfer)) {
1089         case USB_ST_TRANSFERRED:
1090                 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
1091
1092                 /* free resources */
1093                 data = usbd_xfer_get_priv(xfer);
1094                 rum_tx_free(data, 0);
1095                 usbd_xfer_set_priv(xfer, NULL);
1096
1097                 /* FALLTHROUGH */
1098         case USB_ST_SETUP:
1099 tr_setup:
1100                 data = STAILQ_FIRST(&sc->tx_q);
1101                 if (data) {
1102                         STAILQ_REMOVE_HEAD(&sc->tx_q, next);
1103                         m = data->m;
1104
1105                         if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) {
1106                                 DPRINTFN(0, "data overflow, %u bytes\n",
1107                                     m->m_pkthdr.len);
1108                                 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
1109                         }
1110                         pc = usbd_xfer_get_frame(xfer, 0);
1111                         usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
1112                         usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
1113                             m->m_pkthdr.len);
1114
1115                         vap = data->ni->ni_vap;
1116                         if (ieee80211_radiotap_active_vap(vap)) {
1117                                 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
1118
1119                                 tap->wt_flags = 0;
1120                                 tap->wt_rate = data->rate;
1121                                 tap->wt_antenna = sc->tx_ant;
1122
1123                                 ieee80211_radiotap_tx(vap, m);
1124                         }
1125
1126                         /* align end on a 4-bytes boundary */
1127                         len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
1128                         if ((len % 64) == 0)
1129                                 len += 4;
1130
1131                         DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
1132                             m->m_pkthdr.len, len);
1133
1134                         usbd_xfer_set_frame_len(xfer, 0, len);
1135                         usbd_xfer_set_priv(xfer, data);
1136
1137                         usbd_transfer_submit(xfer);
1138                 }
1139                 rum_start(sc);
1140                 break;
1141
1142         default:                        /* Error */
1143                 DPRINTFN(11, "transfer error, %s\n",
1144                     usbd_errstr(error));
1145
1146                 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1147                 data = usbd_xfer_get_priv(xfer);
1148                 if (data != NULL) {
1149                         rum_tx_free(data, error);
1150                         usbd_xfer_set_priv(xfer, NULL);
1151                 }
1152
1153                 if (error != USB_ERR_CANCELLED) {
1154                         if (error == USB_ERR_TIMEOUT)
1155                                 device_printf(sc->sc_dev, "device timeout\n");
1156
1157                         /*
1158                          * Try to clear stall first, also if other
1159                          * errors occur, hence clearing stall
1160                          * introduces a 50 ms delay:
1161                          */
1162                         usbd_xfer_set_stall(xfer);
1163                         goto tr_setup;
1164                 }
1165                 break;
1166         }
1167 }
1168
1169 static void
1170 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
1171 {
1172         struct rum_softc *sc = usbd_xfer_softc(xfer);
1173         struct ieee80211com *ic = &sc->sc_ic;
1174         struct ieee80211_frame_min *wh;
1175         struct ieee80211_node *ni;
1176         struct mbuf *m = NULL;
1177         struct usb_page_cache *pc;
1178         uint32_t flags;
1179         uint8_t rssi = 0;
1180         int len;
1181
1182         usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
1183
1184         switch (USB_GET_STATE(xfer)) {
1185         case USB_ST_TRANSFERRED:
1186
1187                 DPRINTFN(15, "rx done, actlen=%d\n", len);
1188
1189                 if (len < RT2573_RX_DESC_SIZE) {
1190                         DPRINTF("%s: xfer too short %d\n",
1191                             device_get_nameunit(sc->sc_dev), len);
1192                         counter_u64_add(ic->ic_ierrors, 1);
1193                         goto tr_setup;
1194                 }
1195
1196                 len -= RT2573_RX_DESC_SIZE;
1197                 pc = usbd_xfer_get_frame(xfer, 0);
1198                 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
1199
1200                 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
1201                 flags = le32toh(sc->sc_rx_desc.flags);
1202                 sc->last_rx_flags = flags;
1203                 if (len < ((flags >> 16) & 0xfff)) {
1204                         DPRINTFN(5, "%s: frame is truncated from %d to %d "
1205                             "bytes\n", device_get_nameunit(sc->sc_dev),
1206                             (flags >> 16) & 0xfff, len);
1207                         counter_u64_add(ic->ic_ierrors, 1);
1208                         goto tr_setup;
1209                 }
1210                 len = (flags >> 16) & 0xfff;
1211                 if (len < sizeof(struct ieee80211_frame_ack)) {
1212                         DPRINTFN(5, "%s: frame too short %d\n",
1213                             device_get_nameunit(sc->sc_dev), len);
1214                         counter_u64_add(ic->ic_ierrors, 1);
1215                         goto tr_setup;
1216                 }
1217                 if (flags & RT2573_RX_CRC_ERROR) {
1218                         /*
1219                          * This should not happen since we did not
1220                          * request to receive those frames when we
1221                          * filled RUM_TXRX_CSR2:
1222                          */
1223                         DPRINTFN(5, "PHY or CRC error\n");
1224                         counter_u64_add(ic->ic_ierrors, 1);
1225                         goto tr_setup;
1226                 }
1227                 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) {
1228                         switch (flags & RT2573_RX_DEC_MASK) {
1229                         case RT2573_RX_IV_ERROR:
1230                                 DPRINTFN(5, "IV/EIV error\n");
1231                                 break;
1232                         case RT2573_RX_MIC_ERROR:
1233                                 DPRINTFN(5, "MIC error\n");
1234                                 break;
1235                         case RT2573_RX_KEY_ERROR:
1236                                 DPRINTFN(5, "Key error\n");
1237                                 break;
1238                         }
1239                         counter_u64_add(ic->ic_ierrors, 1);
1240                         goto tr_setup;
1241                 }
1242
1243                 m = m_get2(len, M_NOWAIT, MT_DATA, M_PKTHDR);
1244                 if (m == NULL) {
1245                         DPRINTF("could not allocate mbuf\n");
1246                         counter_u64_add(ic->ic_ierrors, 1);
1247                         goto tr_setup;
1248                 }
1249                 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
1250                     mtod(m, uint8_t *), len);
1251
1252                 wh = mtod(m, struct ieee80211_frame_min *);
1253
1254                 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1255                     (flags & RT2573_RX_CIP_MASK) !=
1256                      RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) {
1257                         wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
1258                         m->m_flags |= M_WEP;
1259                 }
1260
1261                 /* finalize mbuf */
1262                 m->m_pkthdr.len = m->m_len = len;
1263
1264                 if (ieee80211_radiotap_active(ic)) {
1265                         struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
1266
1267                         tap->wr_flags = 0;
1268                         tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
1269                             (flags & RT2573_RX_OFDM) ?
1270                             IEEE80211_T_OFDM : IEEE80211_T_CCK);
1271                         rum_get_tsf(sc, &tap->wr_tsf);
1272                         tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
1273                         tap->wr_antnoise = RT2573_NOISE_FLOOR;
1274                         tap->wr_antenna = sc->rx_ant;
1275                 }
1276                 /* FALLTHROUGH */
1277         case USB_ST_SETUP:
1278 tr_setup:
1279                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1280                 usbd_transfer_submit(xfer);
1281
1282                 /*
1283                  * At the end of a USB callback it is always safe to unlock
1284                  * the private mutex of a device! That is why we do the
1285                  * "ieee80211_input" here, and not some lines up!
1286                  */
1287                 RUM_UNLOCK(sc);
1288                 if (m) {
1289                         if (m->m_len >= sizeof(struct ieee80211_frame_min))
1290                                 ni = ieee80211_find_rxnode(ic, wh);
1291                         else
1292                                 ni = NULL;
1293
1294                         if (ni != NULL) {
1295                                 (void) ieee80211_input(ni, m, rssi,
1296                                     RT2573_NOISE_FLOOR);
1297                                 ieee80211_free_node(ni);
1298                         } else
1299                                 (void) ieee80211_input_all(ic, m, rssi,
1300                                     RT2573_NOISE_FLOOR);
1301                 }
1302                 RUM_LOCK(sc);
1303                 rum_start(sc);
1304                 return;
1305
1306         default:                        /* Error */
1307                 if (error != USB_ERR_CANCELLED) {
1308                         /* try to clear stall first */
1309                         usbd_xfer_set_stall(xfer);
1310                         goto tr_setup;
1311                 }
1312                 return;
1313         }
1314 }
1315
1316 static uint8_t
1317 rum_plcp_signal(int rate)
1318 {
1319         switch (rate) {
1320         /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1321         case 12:        return 0xb;
1322         case 18:        return 0xf;
1323         case 24:        return 0xa;
1324         case 36:        return 0xe;
1325         case 48:        return 0x9;
1326         case 72:        return 0xd;
1327         case 96:        return 0x8;
1328         case 108:       return 0xc;
1329
1330         /* CCK rates (NB: not IEEE std, device-specific) */
1331         case 2:         return 0x0;
1332         case 4:         return 0x1;
1333         case 11:        return 0x2;
1334         case 22:        return 0x3;
1335         }
1336         return 0xff;            /* XXX unsupported/unknown rate */
1337 }
1338
1339 /*
1340  * Map net80211 cipher to RT2573 security mode.
1341  */
1342 static uint8_t
1343 rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen)
1344 {
1345         switch (cipher) {
1346         case IEEE80211_CIPHER_WEP:
1347                 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104);
1348         case IEEE80211_CIPHER_TKIP:
1349                 return RT2573_MODE_TKIP;
1350         case IEEE80211_CIPHER_AES_CCM:
1351                 return RT2573_MODE_AES_CCMP;
1352         default:
1353                 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher);
1354                 return 0;
1355         }
1356 }
1357
1358 static void
1359 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
1360     struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid,
1361     int hdrlen, int len, int rate)
1362 {
1363         struct ieee80211com *ic = &sc->sc_ic;
1364         struct wmeParams *wmep = &sc->wme_params[qid];
1365         uint16_t plcp_length;
1366         int remainder;
1367
1368         flags |= RT2573_TX_VALID;
1369         flags |= len << 16;
1370
1371         if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1372                 const struct ieee80211_cipher *cip = k->wk_cipher;
1373
1374                 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen;
1375
1376                 desc->eiv = 0;          /* for WEP */
1377                 cip->ic_setiv(k, (uint8_t *)&desc->iv);
1378         }
1379
1380         /* setup PLCP fields */
1381         desc->plcp_signal  = rum_plcp_signal(rate);
1382         desc->plcp_service = 4;
1383
1384         len += IEEE80211_CRC_LEN;
1385         if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1386                 flags |= RT2573_TX_OFDM;
1387
1388                 plcp_length = len & 0xfff;
1389                 desc->plcp_length_hi = plcp_length >> 6;
1390                 desc->plcp_length_lo = plcp_length & 0x3f;
1391         } else {
1392                 if (rate == 0)
1393                         rate = 2;       /* avoid division by zero */
1394                 plcp_length = howmany(16 * len, rate);
1395                 if (rate == 22) {
1396                         remainder = (16 * len) % 22;
1397                         if (remainder != 0 && remainder < 7)
1398                                 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1399                 }
1400                 desc->plcp_length_hi = plcp_length >> 8;
1401                 desc->plcp_length_lo = plcp_length & 0xff;
1402
1403                 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1404                         desc->plcp_signal |= 0x08;
1405         }
1406
1407         desc->flags = htole32(flags);
1408         desc->hdrlen = hdrlen;
1409         desc->xflags = xflags;
1410
1411         desc->wme = htole16(RT2573_QID(qid) |
1412             RT2573_AIFSN(wmep->wmep_aifsn) |
1413             RT2573_LOGCWMIN(wmep->wmep_logcwmin) |
1414             RT2573_LOGCWMAX(wmep->wmep_logcwmax));
1415 }
1416
1417 static int
1418 rum_sendprot(struct rum_softc *sc,
1419     const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1420 {
1421         struct ieee80211com *ic = ni->ni_ic;
1422         const struct ieee80211_frame *wh;
1423         struct rum_tx_data *data;
1424         struct mbuf *mprot;
1425         int protrate, pktlen, flags, isshort;
1426         uint16_t dur;
1427
1428         RUM_LOCK_ASSERT(sc);
1429         KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY,
1430             ("protection %d", prot));
1431
1432         wh = mtod(m, const struct ieee80211_frame *);
1433         pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN;
1434
1435         protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1436
1437         isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0;
1438         dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort)
1439             + ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1440         flags = 0;
1441         if (prot == IEEE80211_PROT_RTSCTS) {
1442                 /* NB: CTS is the same size as an ACK */
1443                 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort);
1444                 flags |= RT2573_TX_NEED_ACK;
1445                 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur);
1446         } else {
1447                 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur);
1448         }
1449         if (mprot == NULL) {
1450                 /* XXX stat + msg */
1451                 return (ENOBUFS);
1452         }
1453         data = STAILQ_FIRST(&sc->tx_free);
1454         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1455         sc->tx_nfree--;
1456
1457         data->m = mprot;
1458         data->ni = ieee80211_ref_node(ni);
1459         data->rate = protrate;
1460         rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0,
1461             mprot->m_pkthdr.len, protrate);
1462
1463         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1464         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1465
1466         return 0;
1467 }
1468
1469 static uint32_t
1470 rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni,
1471     const struct ieee80211_key *k)
1472 {
1473         struct ieee80211vap *vap = ni->ni_vap;
1474         u_int cipher;
1475         uint32_t flags = 0;
1476         uint8_t mode, pos;
1477
1478         if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1479                 cipher = k->wk_cipher->ic_cipher;
1480                 pos = k->wk_keyix;
1481                 mode = rum_crypto_mode(sc, cipher, k->wk_keylen);
1482                 if (mode == 0)
1483                         return 0;
1484
1485                 flags |= RT2573_TX_CIP_MODE(mode);
1486
1487                 /* Do not trust GROUP flag */
1488                 if (!(k >= &vap->iv_nw_keys[0] &&
1489                       k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]))
1490                         flags |= RT2573_TX_KEY_PAIR;
1491                 else
1492                         pos += 0 * RT2573_SKEY_MAX;     /* vap id */
1493
1494                 flags |= RT2573_TX_KEY_ID(pos);
1495
1496                 if (cipher == IEEE80211_CIPHER_TKIP)
1497                         flags |= RT2573_TX_TKIPMIC;
1498         }
1499
1500         return flags;
1501 }
1502
1503 static int
1504 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1505 {
1506         const struct ieee80211_txparam *tp = ni->ni_txparms;
1507         struct ieee80211com *ic = &sc->sc_ic;
1508         struct rum_tx_data *data;
1509         struct ieee80211_frame *wh;
1510         struct ieee80211_key *k = NULL;
1511         uint32_t flags = 0;
1512         uint16_t dur;
1513         uint8_t ac, type, xflags = 0;
1514         int hdrlen;
1515
1516         RUM_LOCK_ASSERT(sc);
1517
1518         data = STAILQ_FIRST(&sc->tx_free);
1519         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1520         sc->tx_nfree--;
1521
1522         wh = mtod(m0, struct ieee80211_frame *);
1523         type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1524         hdrlen = ieee80211_anyhdrsize(wh);
1525         ac = M_WME_GETAC(m0);
1526
1527         if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1528                 k = ieee80211_crypto_get_txkey(ni, m0);
1529                 if (k == NULL)
1530                         return (ENOENT);
1531
1532                 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1533                     !k->wk_cipher->ic_encap(k, m0))
1534                         return (ENOBUFS);
1535
1536                 wh = mtod(m0, struct ieee80211_frame *);
1537         }
1538
1539         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1540                 flags |= RT2573_TX_NEED_ACK;
1541
1542                 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1543                     ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1544                 USETW(wh->i_dur, dur);
1545
1546                 /* tell hardware to add timestamp for probe responses */
1547                 if (type == IEEE80211_FC0_TYPE_MGT &&
1548                     (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1549                     IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1550                         flags |= RT2573_TX_TIMESTAMP;
1551         }
1552
1553         if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1554                 xflags |= RT2573_TX_HWSEQ;
1555
1556         if (k != NULL)
1557                 flags |= rum_tx_crypto_flags(sc, ni, k);
1558
1559         data->m = m0;
1560         data->ni = ni;
1561         data->rate = tp->mgmtrate;
1562
1563         rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1564             m0->m_pkthdr.len, tp->mgmtrate);
1565
1566         DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1567             m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1568
1569         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1570         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1571
1572         return (0);
1573 }
1574
1575 static int
1576 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1577     const struct ieee80211_bpf_params *params)
1578 {
1579         struct ieee80211com *ic = ni->ni_ic;
1580         struct ieee80211_frame *wh;
1581         struct rum_tx_data *data;
1582         uint32_t flags;
1583         uint8_t ac, type, xflags = 0;
1584         int rate, error;
1585
1586         RUM_LOCK_ASSERT(sc);
1587
1588         wh = mtod(m0, struct ieee80211_frame *);
1589         type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1590
1591         ac = params->ibp_pri & 3;
1592
1593         rate = params->ibp_rate0;
1594         if (!ieee80211_isratevalid(ic->ic_rt, rate))
1595                 return (EINVAL);
1596
1597         flags = 0;
1598         if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1599                 flags |= RT2573_TX_NEED_ACK;
1600         if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1601                 error = rum_sendprot(sc, m0, ni,
1602                     params->ibp_flags & IEEE80211_BPF_RTS ?
1603                          IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1604                     rate);
1605                 if (error || sc->tx_nfree == 0)
1606                         return (ENOBUFS);
1607
1608                 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1609         }
1610
1611         if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1612                 xflags |= RT2573_TX_HWSEQ;
1613
1614         data = STAILQ_FIRST(&sc->tx_free);
1615         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1616         sc->tx_nfree--;
1617
1618         data->m = m0;
1619         data->ni = ni;
1620         data->rate = rate;
1621
1622         /* XXX need to setup descriptor ourself */
1623         rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0,
1624             m0->m_pkthdr.len, rate);
1625
1626         DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1627             m0->m_pkthdr.len, rate);
1628
1629         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1630         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1631
1632         return 0;
1633 }
1634
1635 static int
1636 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1637 {
1638         struct ieee80211vap *vap = ni->ni_vap;
1639         struct ieee80211com *ic = &sc->sc_ic;
1640         struct rum_tx_data *data;
1641         struct ieee80211_frame *wh;
1642         const struct ieee80211_txparam *tp = ni->ni_txparms;
1643         struct ieee80211_key *k = NULL;
1644         uint32_t flags = 0;
1645         uint16_t dur;
1646         uint8_t ac, type, qos, xflags = 0;
1647         int error, hdrlen, rate;
1648
1649         RUM_LOCK_ASSERT(sc);
1650
1651         wh = mtod(m0, struct ieee80211_frame *);
1652         type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1653         hdrlen = ieee80211_anyhdrsize(wh);
1654
1655         if (IEEE80211_QOS_HAS_SEQ(wh))
1656                 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
1657         else
1658                 qos = 0;
1659         ac = M_WME_GETAC(m0);
1660
1661         if (m0->m_flags & M_EAPOL)
1662                 rate = tp->mgmtrate;
1663         else if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1664                 rate = tp->mcastrate;
1665         else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1666                 rate = tp->ucastrate;
1667         else {
1668                 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1669                 rate = ni->ni_txrate;
1670         }
1671
1672         if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1673                 k = ieee80211_crypto_get_txkey(ni, m0);
1674                 if (k == NULL) {
1675                         m_freem(m0);
1676                         return (ENOENT);
1677                 }
1678                 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1679                     !k->wk_cipher->ic_encap(k, m0)) {
1680                         m_freem(m0);
1681                         return (ENOBUFS);
1682                 }
1683
1684                 /* packet header may have moved, reset our local pointer */
1685                 wh = mtod(m0, struct ieee80211_frame *);
1686         }
1687
1688         if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1689                 xflags |= RT2573_TX_HWSEQ;
1690
1691         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1692                 int prot = IEEE80211_PROT_NONE;
1693                 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1694                         prot = IEEE80211_PROT_RTSCTS;
1695                 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1696                     ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1697                         prot = ic->ic_protmode;
1698                 if (prot != IEEE80211_PROT_NONE) {
1699                         error = rum_sendprot(sc, m0, ni, prot, rate);
1700                         if (error || sc->tx_nfree == 0) {
1701                                 m_freem(m0);
1702                                 return ENOBUFS;
1703                         }
1704                         flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1705                 }
1706         }
1707
1708         if (k != NULL)
1709                 flags |= rum_tx_crypto_flags(sc, ni, k);
1710
1711         data = STAILQ_FIRST(&sc->tx_free);
1712         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1713         sc->tx_nfree--;
1714
1715         data->m = m0;
1716         data->ni = ni;
1717         data->rate = rate;
1718
1719         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1720                 /* Unicast frame, check if an ACK is expected. */
1721                 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
1722                     IEEE80211_QOS_ACKPOLICY_NOACK)
1723                         flags |= RT2573_TX_NEED_ACK;
1724
1725                 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1726                     ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1727                 USETW(wh->i_dur, dur);
1728         }
1729
1730         rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1731             m0->m_pkthdr.len, rate);
1732
1733         DPRINTFN(10, "sending frame len=%d rate=%d\n",
1734             m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1735
1736         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1737         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1738
1739         return 0;
1740 }
1741
1742 static int
1743 rum_transmit(struct ieee80211com *ic, struct mbuf *m)
1744 {
1745         struct rum_softc *sc = ic->ic_softc;
1746         int error;
1747
1748         RUM_LOCK(sc);
1749         if (!sc->sc_running) {
1750                 RUM_UNLOCK(sc);
1751                 return (ENXIO);
1752         }
1753         error = mbufq_enqueue(&sc->sc_snd, m);
1754         if (error) {
1755                 RUM_UNLOCK(sc);
1756                 return (error);
1757         }
1758         rum_start(sc);
1759         RUM_UNLOCK(sc);
1760
1761         return (0);
1762 }
1763
1764 static void
1765 rum_start(struct rum_softc *sc)
1766 {
1767         struct ieee80211_node *ni;
1768         struct mbuf *m;
1769
1770         RUM_LOCK_ASSERT(sc);
1771
1772         if (!sc->sc_running)
1773                 return;
1774
1775         while (sc->tx_nfree >= RUM_TX_MINFREE &&
1776             (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1777                 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1778                 if (rum_tx_data(sc, m, ni) != 0) {
1779                         if_inc_counter(ni->ni_vap->iv_ifp,
1780                             IFCOUNTER_OERRORS, 1);
1781                         ieee80211_free_node(ni);
1782                         break;
1783                 }
1784         }
1785 }
1786
1787 static void
1788 rum_parent(struct ieee80211com *ic)
1789 {
1790         struct rum_softc *sc = ic->ic_softc;
1791         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1792
1793         RUM_LOCK(sc);
1794         if (sc->sc_detached) {
1795                 RUM_UNLOCK(sc);
1796                 return;
1797         }
1798         RUM_UNLOCK(sc);
1799
1800         if (ic->ic_nrunning > 0) {
1801                 if (rum_init(sc) == 0)
1802                         ieee80211_start_all(ic);
1803                 else
1804                         ieee80211_stop(vap);
1805         } else
1806                 rum_stop(sc);
1807 }
1808
1809 static void
1810 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1811 {
1812         struct usb_device_request req;
1813         usb_error_t error;
1814
1815         req.bmRequestType = UT_READ_VENDOR_DEVICE;
1816         req.bRequest = RT2573_READ_EEPROM;
1817         USETW(req.wValue, 0);
1818         USETW(req.wIndex, addr);
1819         USETW(req.wLength, len);
1820
1821         error = rum_do_request(sc, &req, buf);
1822         if (error != 0) {
1823                 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1824                     usbd_errstr(error));
1825         }
1826 }
1827
1828 static uint32_t
1829 rum_read(struct rum_softc *sc, uint16_t reg)
1830 {
1831         uint32_t val;
1832
1833         rum_read_multi(sc, reg, &val, sizeof val);
1834
1835         return le32toh(val);
1836 }
1837
1838 static void
1839 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1840 {
1841         struct usb_device_request req;
1842         usb_error_t error;
1843
1844         req.bmRequestType = UT_READ_VENDOR_DEVICE;
1845         req.bRequest = RT2573_READ_MULTI_MAC;
1846         USETW(req.wValue, 0);
1847         USETW(req.wIndex, reg);
1848         USETW(req.wLength, len);
1849
1850         error = rum_do_request(sc, &req, buf);
1851         if (error != 0) {
1852                 device_printf(sc->sc_dev,
1853                     "could not multi read MAC register: %s\n",
1854                     usbd_errstr(error));
1855         }
1856 }
1857
1858 static usb_error_t
1859 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1860 {
1861         uint32_t tmp = htole32(val);
1862
1863         return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1864 }
1865
1866 static usb_error_t
1867 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1868 {
1869         struct usb_device_request req;
1870         usb_error_t error;
1871         size_t offset;
1872
1873         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1874         req.bRequest = RT2573_WRITE_MULTI_MAC;
1875         USETW(req.wValue, 0);
1876
1877         /* write at most 64 bytes at a time */
1878         for (offset = 0; offset < len; offset += 64) {
1879                 USETW(req.wIndex, reg + offset);
1880                 USETW(req.wLength, MIN(len - offset, 64));
1881
1882                 error = rum_do_request(sc, &req, (char *)buf + offset);
1883                 if (error != 0) {
1884                         device_printf(sc->sc_dev,
1885                             "could not multi write MAC register: %s\n",
1886                             usbd_errstr(error));
1887                         return (error);
1888                 }
1889         }
1890
1891         return (USB_ERR_NORMAL_COMPLETION);
1892 }
1893
1894 static usb_error_t
1895 rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1896 {
1897         return (rum_write(sc, reg, rum_read(sc, reg) | mask));
1898 }
1899
1900 static usb_error_t
1901 rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1902 {
1903         return (rum_write(sc, reg, rum_read(sc, reg) & ~mask));
1904 }
1905
1906 static usb_error_t
1907 rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset)
1908 {
1909         return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set));
1910 }
1911
1912 static int
1913 rum_bbp_busy(struct rum_softc *sc)
1914 {
1915         int ntries;
1916
1917         for (ntries = 0; ntries < 100; ntries++) {
1918                 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1919                         break;
1920                 if (rum_pause(sc, hz / 100))
1921                         break;
1922         }
1923         if (ntries == 100)
1924                 return (ETIMEDOUT);
1925
1926         return (0);
1927 }
1928
1929 static void
1930 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1931 {
1932         uint32_t tmp;
1933
1934         DPRINTFN(2, "reg=0x%08x\n", reg);
1935
1936         if (rum_bbp_busy(sc) != 0) {
1937                 device_printf(sc->sc_dev, "could not write to BBP\n");
1938                 return;
1939         }
1940
1941         tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1942         rum_write(sc, RT2573_PHY_CSR3, tmp);
1943 }
1944
1945 static uint8_t
1946 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1947 {
1948         uint32_t val;
1949         int ntries;
1950
1951         DPRINTFN(2, "reg=0x%08x\n", reg);
1952
1953         if (rum_bbp_busy(sc) != 0) {
1954                 device_printf(sc->sc_dev, "could not read BBP\n");
1955                 return 0;
1956         }
1957
1958         val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1959         rum_write(sc, RT2573_PHY_CSR3, val);
1960
1961         for (ntries = 0; ntries < 100; ntries++) {
1962                 val = rum_read(sc, RT2573_PHY_CSR3);
1963                 if (!(val & RT2573_BBP_BUSY))
1964                         return val & 0xff;
1965                 if (rum_pause(sc, hz / 100))
1966                         break;
1967         }
1968
1969         device_printf(sc->sc_dev, "could not read BBP\n");
1970         return 0;
1971 }
1972
1973 static void
1974 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1975 {
1976         uint32_t tmp;
1977         int ntries;
1978
1979         for (ntries = 0; ntries < 100; ntries++) {
1980                 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1981                         break;
1982                 if (rum_pause(sc, hz / 100))
1983                         break;
1984         }
1985         if (ntries == 100) {
1986                 device_printf(sc->sc_dev, "could not write to RF\n");
1987                 return;
1988         }
1989
1990         tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1991             (reg & 3);
1992         rum_write(sc, RT2573_PHY_CSR4, tmp);
1993
1994         /* remember last written value in sc */
1995         sc->rf_regs[reg] = val;
1996
1997         DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1998 }
1999
2000 static void
2001 rum_select_antenna(struct rum_softc *sc)
2002 {
2003         uint8_t bbp4, bbp77;
2004         uint32_t tmp;
2005
2006         bbp4  = rum_bbp_read(sc, 4);
2007         bbp77 = rum_bbp_read(sc, 77);
2008
2009         /* TBD */
2010
2011         /* make sure Rx is disabled before switching antenna */
2012         tmp = rum_read(sc, RT2573_TXRX_CSR0);
2013         rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2014
2015         rum_bbp_write(sc,  4, bbp4);
2016         rum_bbp_write(sc, 77, bbp77);
2017
2018         rum_write(sc, RT2573_TXRX_CSR0, tmp);
2019 }
2020
2021 /*
2022  * Enable multi-rate retries for frames sent at OFDM rates.
2023  * In 802.11b/g mode, allow fallback to CCK rates.
2024  */
2025 static void
2026 rum_enable_mrr(struct rum_softc *sc)
2027 {
2028         struct ieee80211com *ic = &sc->sc_ic;
2029
2030         if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2031                 rum_setbits(sc, RT2573_TXRX_CSR4,
2032                     RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK);
2033         } else {
2034                 rum_modbits(sc, RT2573_TXRX_CSR4,
2035                     RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK);
2036         }
2037 }
2038
2039 static void
2040 rum_set_txpreamble(struct rum_softc *sc)
2041 {
2042         struct ieee80211com *ic = &sc->sc_ic;
2043
2044         if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2045                 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
2046         else
2047                 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
2048 }
2049
2050 static void
2051 rum_set_basicrates(struct rum_softc *sc)
2052 {
2053         struct ieee80211com *ic = &sc->sc_ic;
2054
2055         /* update basic rate set */
2056         if (ic->ic_curmode == IEEE80211_MODE_11B) {
2057                 /* 11b basic rates: 1, 2Mbps */
2058                 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
2059         } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2060                 /* 11a basic rates: 6, 12, 24Mbps */
2061                 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
2062         } else {
2063                 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
2064                 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
2065         }
2066 }
2067
2068 /*
2069  * Reprogram MAC/BBP to switch to a new band.  Values taken from the reference
2070  * driver.
2071  */
2072 static void
2073 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
2074 {
2075         uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
2076
2077         /* update all BBP registers that depend on the band */
2078         bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
2079         bbp35 = 0x50; bbp97 = 0x48; bbp98  = 0x48;
2080         if (IEEE80211_IS_CHAN_5GHZ(c)) {
2081                 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
2082                 bbp35 += 0x10; bbp97 += 0x10; bbp98  += 0x10;
2083         }
2084         if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2085             (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2086                 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
2087         }
2088
2089         sc->bbp17 = bbp17;
2090         rum_bbp_write(sc,  17, bbp17);
2091         rum_bbp_write(sc,  96, bbp96);
2092         rum_bbp_write(sc, 104, bbp104);
2093
2094         if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2095             (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2096                 rum_bbp_write(sc, 75, 0x80);
2097                 rum_bbp_write(sc, 86, 0x80);
2098                 rum_bbp_write(sc, 88, 0x80);
2099         }
2100
2101         rum_bbp_write(sc, 35, bbp35);
2102         rum_bbp_write(sc, 97, bbp97);
2103         rum_bbp_write(sc, 98, bbp98);
2104
2105         if (IEEE80211_IS_CHAN_2GHZ(c)) {
2106                 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ,
2107                     RT2573_PA_PE_5GHZ);
2108         } else {
2109                 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ,
2110                     RT2573_PA_PE_2GHZ);
2111         }
2112 }
2113
2114 static void
2115 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
2116 {
2117         struct ieee80211com *ic = &sc->sc_ic;
2118         const struct rfprog *rfprog;
2119         uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
2120         int8_t power;
2121         int i, chan;
2122
2123         chan = ieee80211_chan2ieee(ic, c);
2124         if (chan == 0 || chan == IEEE80211_CHAN_ANY)
2125                 return;
2126
2127         /* select the appropriate RF settings based on what EEPROM says */
2128         rfprog = (sc->rf_rev == RT2573_RF_5225 ||
2129                   sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
2130
2131         /* find the settings for this channel (we know it exists) */
2132         for (i = 0; rfprog[i].chan != chan; i++);
2133
2134         power = sc->txpow[i];
2135         if (power < 0) {
2136                 bbp94 += power;
2137                 power = 0;
2138         } else if (power > 31) {
2139                 bbp94 += power - 31;
2140                 power = 31;
2141         }
2142
2143         /*
2144          * If we are switching from the 2GHz band to the 5GHz band or
2145          * vice-versa, BBP registers need to be reprogrammed.
2146          */
2147         if (c->ic_flags != ic->ic_curchan->ic_flags) {
2148                 rum_select_band(sc, c);
2149                 rum_select_antenna(sc);
2150         }
2151         ic->ic_curchan = c;
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_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2159         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2160         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
2161         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2162
2163         rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2164         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2165         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2166         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2167
2168         rum_pause(sc, hz / 100);
2169
2170         /* enable smart mode for MIMO-capable RFs */
2171         bbp3 = rum_bbp_read(sc, 3);
2172
2173         bbp3 &= ~RT2573_SMART_MODE;
2174         if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
2175                 bbp3 |= RT2573_SMART_MODE;
2176
2177         rum_bbp_write(sc, 3, bbp3);
2178
2179         if (bbp94 != RT2573_BBPR94_DEFAULT)
2180                 rum_bbp_write(sc, 94, bbp94);
2181
2182         /* give the chip some extra time to do the switchover */
2183         rum_pause(sc, hz / 100);
2184 }
2185
2186 static void
2187 rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap)
2188 {
2189         struct ieee80211_node *ni = vap->iv_bss;
2190         const struct ieee80211_txparam *tp = ni->ni_txparms;
2191         struct rum_vap *rvp = RUM_VAP(vap);
2192
2193         rvp->maxretry = MIN(tp->maxretry, 0xf);
2194
2195         rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) |
2196             RT2573_LONG_RETRY(rvp->maxretry),
2197             RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK);
2198 }
2199
2200 /*
2201  * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
2202  * and HostAP operating modes.
2203  */
2204 static int
2205 rum_enable_tsf_sync(struct rum_softc *sc)
2206 {
2207         struct ieee80211com *ic = &sc->sc_ic;
2208         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2209         uint32_t tmp;
2210         uint16_t bintval;
2211
2212         if (vap->iv_opmode != IEEE80211_M_STA) {
2213                 /*
2214                  * Change default 16ms TBTT adjustment to 8ms.
2215                  * Must be done before enabling beacon generation.
2216                  */
2217                 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0)
2218                         return EIO;
2219         }
2220
2221         tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
2222
2223         /* set beacon interval (in 1/16ms unit) */
2224         bintval = vap->iv_bss->ni_intval;
2225         tmp |= bintval * 16;
2226         tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN;
2227
2228         switch (vap->iv_opmode) {
2229         case IEEE80211_M_STA:
2230                 /*
2231                  * Local TSF is always updated with remote TSF on beacon
2232                  * reception.
2233                  */
2234                 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA);
2235                 break;
2236         case IEEE80211_M_IBSS:
2237                 /*
2238                  * Local TSF is updated with remote TSF on beacon reception
2239                  * only if the remote TSF is greater than local TSF.
2240                  */
2241                 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS);
2242                 tmp |= RT2573_BCN_TX_EN;
2243                 break;
2244         case IEEE80211_M_HOSTAP:
2245                 /* SYNC with nobody */
2246                 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP);
2247                 tmp |= RT2573_BCN_TX_EN;
2248                 break;
2249         default:
2250                 device_printf(sc->sc_dev,
2251                     "Enabling TSF failed. undefined opmode %d\n",
2252                     vap->iv_opmode);
2253                 return EINVAL;
2254         }
2255
2256         if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0)
2257                 return EIO;
2258
2259         /* refresh current sleep time */
2260         return (rum_set_sleep_time(sc, bintval));
2261 }
2262
2263 static void
2264 rum_enable_tsf(struct rum_softc *sc)
2265 {
2266         rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN |
2267             RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff);
2268 }
2269
2270 static void
2271 rum_abort_tsf_sync(struct rum_softc *sc)
2272 {
2273         rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff);
2274 }
2275
2276 static void
2277 rum_get_tsf(struct rum_softc *sc, uint64_t *buf)
2278 {
2279         rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf));
2280 }
2281
2282 static void
2283 rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id)
2284 {
2285         struct ieee80211com *ic = &sc->sc_ic;
2286         uint8_t slottime;
2287
2288         slottime = IEEE80211_GET_SLOTTIME(ic);
2289
2290         rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff);
2291
2292         DPRINTF("setting slot time to %uus\n", slottime);
2293 }
2294
2295 static void
2296 rum_update_slot(struct ieee80211com *ic)
2297 {
2298         rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb);
2299 }
2300
2301 static int
2302 rum_wme_update(struct ieee80211com *ic)
2303 {
2304         const struct wmeParams *chanp =
2305             ic->ic_wme.wme_chanParams.cap_wmeParams;
2306         struct rum_softc *sc = ic->ic_softc;
2307         int error = 0;
2308
2309         RUM_LOCK(sc);
2310         error = rum_write(sc, RT2573_AIFSN_CSR,
2311             chanp[WME_AC_VO].wmep_aifsn  << 12 |
2312             chanp[WME_AC_VI].wmep_aifsn  <<  8 |
2313             chanp[WME_AC_BK].wmep_aifsn  <<  4 |
2314             chanp[WME_AC_BE].wmep_aifsn);
2315         if (error)
2316                 goto print_err;
2317         error = rum_write(sc, RT2573_CWMIN_CSR,
2318             chanp[WME_AC_VO].wmep_logcwmin << 12 |
2319             chanp[WME_AC_VI].wmep_logcwmin <<  8 |
2320             chanp[WME_AC_BK].wmep_logcwmin <<  4 |
2321             chanp[WME_AC_BE].wmep_logcwmin);
2322         if (error)
2323                 goto print_err;
2324         error = rum_write(sc, RT2573_CWMAX_CSR,
2325             chanp[WME_AC_VO].wmep_logcwmax << 12 |
2326             chanp[WME_AC_VI].wmep_logcwmax <<  8 |
2327             chanp[WME_AC_BK].wmep_logcwmax <<  4 |
2328             chanp[WME_AC_BE].wmep_logcwmax);
2329         if (error)
2330                 goto print_err;
2331         error = rum_write(sc, RT2573_TXOP01_CSR,
2332             chanp[WME_AC_BK].wmep_txopLimit << 16 |
2333             chanp[WME_AC_BE].wmep_txopLimit);
2334         if (error)
2335                 goto print_err;
2336         error = rum_write(sc, RT2573_TXOP23_CSR,
2337             chanp[WME_AC_VO].wmep_txopLimit << 16 |
2338             chanp[WME_AC_VI].wmep_txopLimit);
2339         if (error)
2340                 goto print_err;
2341
2342         memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC);
2343
2344 print_err:
2345         RUM_UNLOCK(sc);
2346         if (error != 0) {
2347                 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n",
2348                     __func__, error);
2349         }
2350
2351         return (error);
2352 }
2353
2354 static void
2355 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
2356 {
2357
2358         rum_write(sc, RT2573_MAC_CSR4,
2359             bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24);
2360         rum_write(sc, RT2573_MAC_CSR5,
2361             bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1));
2362 }
2363
2364 static void
2365 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
2366 {
2367
2368         rum_write(sc, RT2573_MAC_CSR2,
2369             addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
2370         rum_write(sc, RT2573_MAC_CSR3,
2371             addr[4] | addr[5] << 8 | 0xff << 16);
2372 }
2373
2374 static void
2375 rum_setpromisc(struct rum_softc *sc)
2376 {
2377         struct ieee80211com *ic = &sc->sc_ic;
2378
2379         if (ic->ic_promisc == 0)
2380                 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2381         else
2382                 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2383
2384         DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ?
2385             "entering" : "leaving");
2386 }
2387
2388 static void
2389 rum_update_promisc(struct ieee80211com *ic)
2390 {
2391         struct rum_softc *sc = ic->ic_softc;
2392
2393         RUM_LOCK(sc);
2394         if (sc->sc_running)
2395                 rum_setpromisc(sc);
2396         RUM_UNLOCK(sc);
2397 }
2398
2399 static void
2400 rum_update_mcast(struct ieee80211com *ic)
2401 {
2402         /* Ignore. */
2403 }
2404
2405 static const char *
2406 rum_get_rf(int rev)
2407 {
2408         switch (rev) {
2409         case RT2573_RF_2527:    return "RT2527 (MIMO XR)";
2410         case RT2573_RF_2528:    return "RT2528";
2411         case RT2573_RF_5225:    return "RT5225 (MIMO XR)";
2412         case RT2573_RF_5226:    return "RT5226";
2413         default:                return "unknown";
2414         }
2415 }
2416
2417 static void
2418 rum_read_eeprom(struct rum_softc *sc)
2419 {
2420         uint16_t val;
2421 #ifdef RUM_DEBUG
2422         int i;
2423 #endif
2424
2425         /* read MAC address */
2426         rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6);
2427
2428         rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
2429         val = le16toh(val);
2430         sc->rf_rev =   (val >> 11) & 0x1f;
2431         sc->hw_radio = (val >> 10) & 0x1;
2432         sc->rx_ant =   (val >> 4)  & 0x3;
2433         sc->tx_ant =   (val >> 2)  & 0x3;
2434         sc->nb_ant =   val & 0x3;
2435
2436         DPRINTF("RF revision=%d\n", sc->rf_rev);
2437
2438         rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
2439         val = le16toh(val);
2440         sc->ext_5ghz_lna = (val >> 6) & 0x1;
2441         sc->ext_2ghz_lna = (val >> 4) & 0x1;
2442
2443         DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
2444             sc->ext_2ghz_lna, sc->ext_5ghz_lna);
2445
2446         rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
2447         val = le16toh(val);
2448         if ((val & 0xff) != 0xff)
2449                 sc->rssi_2ghz_corr = (int8_t)(val & 0xff);      /* signed */
2450
2451         /* Only [-10, 10] is valid */
2452         if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
2453                 sc->rssi_2ghz_corr = 0;
2454
2455         rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
2456         val = le16toh(val);
2457         if ((val & 0xff) != 0xff)
2458                 sc->rssi_5ghz_corr = (int8_t)(val & 0xff);      /* signed */
2459
2460         /* Only [-10, 10] is valid */
2461         if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
2462                 sc->rssi_5ghz_corr = 0;
2463
2464         if (sc->ext_2ghz_lna)
2465                 sc->rssi_2ghz_corr -= 14;
2466         if (sc->ext_5ghz_lna)
2467                 sc->rssi_5ghz_corr -= 14;
2468
2469         DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
2470             sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
2471
2472         rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
2473         val = le16toh(val);
2474         if ((val & 0xff) != 0xff)
2475                 sc->rffreq = val & 0xff;
2476
2477         DPRINTF("RF freq=%d\n", sc->rffreq);
2478
2479         /* read Tx power for all a/b/g channels */
2480         rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
2481         /* XXX default Tx power for 802.11a channels */
2482         memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
2483 #ifdef RUM_DEBUG
2484         for (i = 0; i < 14; i++)
2485                 DPRINTF("Channel=%d Tx power=%d\n", i + 1,  sc->txpow[i]);
2486 #endif
2487
2488         /* read default values for BBP registers */
2489         rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
2490 #ifdef RUM_DEBUG
2491         for (i = 0; i < 14; i++) {
2492                 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2493                         continue;
2494                 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
2495                     sc->bbp_prom[i].val);
2496         }
2497 #endif
2498 }
2499
2500 static int
2501 rum_bbp_wakeup(struct rum_softc *sc)
2502 {
2503         unsigned int ntries;
2504
2505         for (ntries = 0; ntries < 100; ntries++) {
2506                 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
2507                         break;
2508                 rum_write(sc, RT2573_MAC_CSR12, 4);     /* force wakeup */
2509                 if (rum_pause(sc, hz / 100))
2510                         break;
2511         }
2512         if (ntries == 100) {
2513                 device_printf(sc->sc_dev,
2514                     "timeout waiting for BBP/RF to wakeup\n");
2515                 return (ETIMEDOUT);
2516         }
2517
2518         return (0);
2519 }
2520
2521 static int
2522 rum_bbp_init(struct rum_softc *sc)
2523 {
2524         int i, ntries;
2525
2526         /* wait for BBP to be ready */
2527         for (ntries = 0; ntries < 100; ntries++) {
2528                 const uint8_t val = rum_bbp_read(sc, 0);
2529                 if (val != 0 && val != 0xff)
2530                         break;
2531                 if (rum_pause(sc, hz / 100))
2532                         break;
2533         }
2534         if (ntries == 100) {
2535                 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2536                 return EIO;
2537         }
2538
2539         /* initialize BBP registers to default values */
2540         for (i = 0; i < nitems(rum_def_bbp); i++)
2541                 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
2542
2543         /* write vendor-specific BBP values (from EEPROM) */
2544         for (i = 0; i < 16; i++) {
2545                 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2546                         continue;
2547                 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2548         }
2549
2550         return 0;
2551 }
2552
2553 static void
2554 rum_clr_shkey_regs(struct rum_softc *sc)
2555 {
2556         rum_write(sc, RT2573_SEC_CSR0, 0);
2557         rum_write(sc, RT2573_SEC_CSR1, 0);
2558         rum_write(sc, RT2573_SEC_CSR5, 0);
2559 }
2560
2561 static int
2562 rum_init(struct rum_softc *sc)
2563 {
2564         struct ieee80211com *ic = &sc->sc_ic;
2565         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2566         uint32_t tmp;
2567         int i, ret;
2568
2569         RUM_LOCK(sc);
2570         if (sc->sc_running) {
2571                 ret = 0;
2572                 goto end;
2573         }
2574
2575         /* initialize MAC registers to default values */
2576         for (i = 0; i < nitems(rum_def_mac); i++)
2577                 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
2578
2579         /* reset some WME parameters to default values */
2580         sc->wme_params[0].wmep_aifsn = 2;
2581         sc->wme_params[0].wmep_logcwmin = 4;
2582         sc->wme_params[0].wmep_logcwmax = 10;
2583
2584         /* set host ready */
2585         rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2586         rum_write(sc, RT2573_MAC_CSR1, 0);
2587
2588         /* wait for BBP/RF to wakeup */
2589         if ((ret = rum_bbp_wakeup(sc)) != 0)
2590                 goto end;
2591
2592         if ((ret = rum_bbp_init(sc)) != 0)
2593                 goto end;
2594
2595         /* select default channel */
2596         rum_select_band(sc, ic->ic_curchan);
2597         rum_select_antenna(sc);
2598         rum_set_chan(sc, ic->ic_curchan);
2599
2600         /* clear STA registers */
2601         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2602
2603         /* clear security registers (if required) */
2604         if (sc->sc_clr_shkeys == 0) {
2605                 rum_clr_shkey_regs(sc);
2606                 sc->sc_clr_shkeys = 1;
2607         }
2608
2609         rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr);
2610
2611         /* initialize ASIC */
2612         rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY);
2613
2614         /*
2615          * Allocate Tx and Rx xfer queues.
2616          */
2617         rum_setup_tx_list(sc);
2618
2619         /* update Rx filter */
2620         tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2621
2622         tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2623         if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2624                 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2625                        RT2573_DROP_ACKCTS;
2626                 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2627                         tmp |= RT2573_DROP_TODS;
2628                 if (ic->ic_promisc == 0)
2629                         tmp |= RT2573_DROP_NOT_TO_ME;
2630         }
2631         rum_write(sc, RT2573_TXRX_CSR0, tmp);
2632
2633         sc->sc_running = 1;
2634         usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2635         usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2636
2637 end:    RUM_UNLOCK(sc);
2638
2639         if (ret != 0)
2640                 rum_stop(sc);
2641
2642         return ret;
2643 }
2644
2645 static void
2646 rum_stop(struct rum_softc *sc)
2647 {
2648
2649         RUM_LOCK(sc);
2650         if (!sc->sc_running) {
2651                 RUM_UNLOCK(sc);
2652                 return;
2653         }
2654         sc->sc_running = 0;
2655         RUM_UNLOCK(sc);
2656
2657         /*
2658          * Drain the USB transfers, if not already drained:
2659          */
2660         usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2661         usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2662
2663         RUM_LOCK(sc);
2664         rum_unsetup_tx_list(sc);
2665
2666         /* disable Rx */
2667         rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX);
2668
2669         /* reset ASIC */
2670         rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2671         rum_write(sc, RT2573_MAC_CSR1, 0);
2672         RUM_UNLOCK(sc);
2673 }
2674
2675 static void
2676 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2677 {
2678         uint16_t reg = RT2573_MCU_CODE_BASE;
2679         usb_error_t err;
2680
2681         /* copy firmware image into NIC */
2682         for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2683                 err = rum_write(sc, reg, UGETDW(ucode));
2684                 if (err) {
2685                         /* firmware already loaded ? */
2686                         device_printf(sc->sc_dev, "Firmware load "
2687                             "failure! (ignored)\n");
2688                         break;
2689                 }
2690         }
2691
2692         err = rum_do_mcu_request(sc, RT2573_MCU_RUN);
2693         if (err != USB_ERR_NORMAL_COMPLETION) {
2694                 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2695                     usbd_errstr(err));
2696         }
2697
2698         /* give the chip some time to boot */
2699         rum_pause(sc, hz / 8);
2700 }
2701
2702 static int
2703 rum_set_sleep_time(struct rum_softc *sc, uint16_t bintval)
2704 {
2705         struct ieee80211com *ic = &sc->sc_ic;
2706         usb_error_t uerror;
2707         int exp, delay;
2708
2709         RUM_LOCK_ASSERT(sc);
2710
2711         exp = ic->ic_lintval / bintval;
2712         delay = ic->ic_lintval % bintval;
2713
2714         if (exp > RT2573_TBCN_EXP_MAX)
2715                 exp = RT2573_TBCN_EXP_MAX;
2716         if (delay > RT2573_TBCN_DELAY_MAX)
2717                 delay = RT2573_TBCN_DELAY_MAX;
2718
2719         uerror = rum_modbits(sc, RT2573_MAC_CSR11,
2720             RT2573_TBCN_EXP(exp) |
2721             RT2573_TBCN_DELAY(delay),
2722             RT2573_TBCN_EXP(RT2573_TBCN_EXP_MAX) |
2723             RT2573_TBCN_DELAY(RT2573_TBCN_DELAY_MAX));
2724
2725         if (uerror != USB_ERR_NORMAL_COMPLETION)
2726                 return (EIO);
2727
2728         sc->sc_sleep_time = IEEE80211_TU_TO_TICKS(exp * bintval + delay);
2729
2730         return (0);
2731 }
2732
2733 static int
2734 rum_reset(struct ieee80211vap *vap, u_long cmd)
2735 {
2736         struct ieee80211com *ic = vap->iv_ic;
2737         struct ieee80211_node *ni;
2738         struct rum_softc *sc = ic->ic_softc;
2739         int error;
2740
2741         switch (cmd) {
2742         case IEEE80211_IOC_POWERSAVE:
2743         case IEEE80211_IOC_PROTMODE:
2744         case IEEE80211_IOC_RTSTHRESHOLD:
2745                 error = 0;
2746                 break;
2747         case IEEE80211_IOC_POWERSAVESLEEP:
2748                 ni = ieee80211_ref_node(vap->iv_bss);
2749
2750                 RUM_LOCK(sc);
2751                 error = rum_set_sleep_time(sc, ni->ni_intval);
2752                 if (vap->iv_state == IEEE80211_S_SLEEP) {
2753                         /* Use new values for wakeup timer. */
2754                         rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2755                         rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2756                 }
2757                 /* XXX send reassoc */
2758                 RUM_UNLOCK(sc);
2759
2760                 ieee80211_free_node(ni);
2761                 break;
2762         default:
2763                 error = ENETRESET;
2764                 break;
2765         }
2766
2767         return (error);
2768 }
2769
2770 static int
2771 rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2772 {
2773         struct ieee80211com *ic = vap->iv_ic;
2774         struct rum_vap *rvp = RUM_VAP(vap);
2775         struct mbuf *m = rvp->bcn_mbuf;
2776         const struct ieee80211_txparam *tp;
2777         struct rum_tx_desc desc;
2778
2779         RUM_LOCK_ASSERT(sc);
2780
2781         if (m == NULL)
2782                 return EINVAL;
2783         if (ic->ic_bsschan == IEEE80211_CHAN_ANYC)
2784                 return EINVAL;
2785
2786         tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2787         rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP,
2788             RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate);
2789
2790         /* copy the Tx descriptor into NIC memory */
2791         if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc,
2792             RT2573_TX_DESC_SIZE) != 0)
2793                 return EIO;
2794
2795         /* copy beacon header and payload into NIC memory */
2796         if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE,
2797             mtod(m, uint8_t *), m->m_pkthdr.len) != 0)
2798                 return EIO;
2799
2800         return 0;
2801 }
2802
2803 static int
2804 rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2805 {
2806         struct rum_vap *rvp = RUM_VAP(vap);
2807         struct ieee80211_node *ni = vap->iv_bss;
2808         struct mbuf *m;
2809
2810         if (ni->ni_chan == IEEE80211_CHAN_ANYC)
2811                 return EINVAL;
2812
2813         m = ieee80211_beacon_alloc(ni);
2814         if (m == NULL)
2815                 return ENOMEM;
2816
2817         if (rvp->bcn_mbuf != NULL)
2818                 m_freem(rvp->bcn_mbuf);
2819
2820         rvp->bcn_mbuf = m;
2821
2822         return (rum_set_beacon(sc, vap));
2823 }
2824
2825 static void
2826 rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data,
2827     uint8_t rvp_id)
2828 {
2829         struct ieee80211vap *vap = data->vap;
2830
2831         rum_set_beacon(sc, vap);
2832 }
2833
2834 static void
2835 rum_update_beacon(struct ieee80211vap *vap, int item)
2836 {
2837         struct ieee80211com *ic = vap->iv_ic;
2838         struct rum_softc *sc = ic->ic_softc;
2839         struct rum_vap *rvp = RUM_VAP(vap);
2840         struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
2841         struct ieee80211_node *ni = vap->iv_bss;
2842         struct mbuf *m = rvp->bcn_mbuf;
2843         int mcast = 0;
2844
2845         RUM_LOCK(sc);
2846         if (m == NULL) {
2847                 m = ieee80211_beacon_alloc(ni);
2848                 if (m == NULL) {
2849                         device_printf(sc->sc_dev,
2850                             "%s: could not allocate beacon frame\n", __func__);
2851                         RUM_UNLOCK(sc);
2852                         return;
2853                 }
2854                 rvp->bcn_mbuf = m;
2855         }
2856
2857         switch (item) {
2858         case IEEE80211_BEACON_ERP:
2859                 rum_update_slot(ic);
2860                 break;
2861         case IEEE80211_BEACON_TIM:
2862                 mcast = 1;      /*TODO*/
2863                 break;
2864         default:
2865                 break;
2866         }
2867         RUM_UNLOCK(sc);
2868
2869         setbit(bo->bo_flags, item);
2870         ieee80211_beacon_update(ni, m, mcast);
2871
2872         rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb);
2873 }
2874
2875 static int
2876 rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k,
2877     uint16_t base)
2878 {
2879
2880         if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen))
2881                 return EIO;
2882
2883         if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) {
2884                 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE,
2885                     k->wk_txmic, 8))
2886                         return EIO;
2887                 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8,
2888                     k->wk_rxmic, 8))
2889                         return EIO;
2890         }
2891
2892         return 0;
2893 }
2894
2895 static void
2896 rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data,
2897     uint8_t rvp_id)
2898 {
2899         struct ieee80211_key *k = &data->key;
2900         uint8_t mode;
2901
2902         if (sc->sc_clr_shkeys == 0) {
2903                 rum_clr_shkey_regs(sc);
2904                 sc->sc_clr_shkeys = 1;
2905         }
2906
2907         mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2908         if (mode == 0)
2909                 goto print_err;
2910
2911         DPRINTFN(1, "setting group key %d for vap %d, mode %d "
2912             "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2913             (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2914             (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2915
2916         /* Install the key. */
2917         if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0)
2918                 goto print_err;
2919
2920         /* Set cipher mode. */
2921         if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2922               mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX,
2923               RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX)
2924             != 0)
2925                 goto print_err;
2926
2927         /* Mark this key as valid. */
2928         if (rum_setbits(sc, RT2573_SEC_CSR0,
2929               1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0)
2930                 goto print_err;
2931
2932         return;
2933
2934 print_err:
2935         device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n",
2936             __func__, k->wk_keyix, rvp_id);
2937 }
2938
2939 static void
2940 rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data,
2941     uint8_t rvp_id)
2942 {
2943         struct ieee80211_key *k = &data->key;
2944
2945         DPRINTF("%s: removing group key %d for vap %d\n", __func__,
2946             k->wk_keyix, rvp_id);
2947         rum_clrbits(sc,
2948             rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2949             RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX);
2950         rum_clrbits(sc, RT2573_SEC_CSR0,
2951             rvp_id * RT2573_SKEY_MAX + k->wk_keyix);
2952 }
2953
2954 static void
2955 rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data,
2956     uint8_t rvp_id)
2957 {
2958         struct ieee80211_key *k = &data->key;
2959         uint8_t buf[IEEE80211_ADDR_LEN + 1];
2960         uint8_t mode;
2961
2962         mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2963         if (mode == 0)
2964                 goto print_err;
2965
2966         DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d "
2967             "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2968             (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2969             (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2970
2971         /* Install the key. */
2972         if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0)
2973                 goto print_err;
2974
2975         IEEE80211_ADDR_COPY(buf, k->wk_macaddr);
2976         buf[IEEE80211_ADDR_LEN] = mode;
2977
2978         /* Set transmitter address and cipher mode. */
2979         if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix),
2980               buf, sizeof buf) != 0)
2981                 goto print_err;
2982
2983         /* Enable key table lookup for this vap. */
2984         if (sc->vap_key_count[rvp_id]++ == 0)
2985                 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0)
2986                         goto print_err;
2987
2988         /* Mark this key as valid. */
2989         if (rum_setbits(sc,
2990               k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2991               1 << (k->wk_keyix % 32)) != 0)
2992                 goto print_err;
2993
2994         return;
2995
2996 print_err:
2997         device_printf(sc->sc_dev,
2998             "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix,
2999             rvp_id);
3000 }
3001
3002 static void
3003 rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data,
3004     uint8_t rvp_id)
3005 {
3006         struct ieee80211_key *k = &data->key;
3007
3008         DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix);
3009         rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
3010             1 << (k->wk_keyix % 32));
3011         sc->keys_bmap &= ~(1ULL << k->wk_keyix);
3012         if (--sc->vap_key_count[rvp_id] == 0)
3013                 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id);
3014 }
3015
3016 static int
3017 rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k,
3018     ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
3019 {
3020         struct rum_softc *sc = vap->iv_ic->ic_softc;
3021         uint8_t i;
3022
3023         if (!(&vap->iv_nw_keys[0] <= k &&
3024              k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) {
3025                 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
3026                         RUM_LOCK(sc);
3027                         for (i = 0; i < RT2573_ADDR_MAX; i++) {
3028                                 if ((sc->keys_bmap & (1ULL << i)) == 0) {
3029                                         sc->keys_bmap |= (1ULL << i);
3030                                         *keyix = i;
3031                                         break;
3032                                 }
3033                         }
3034                         RUM_UNLOCK(sc);
3035                         if (i == RT2573_ADDR_MAX) {
3036                                 device_printf(sc->sc_dev,
3037                                     "%s: no free space in the key table\n",
3038                                     __func__);
3039                                 return 0;
3040                         }
3041                 } else
3042                         *keyix = 0;
3043         } else {
3044                 *keyix = ieee80211_crypto_get_key_wepidx(vap, k);
3045         }
3046         *rxkeyix = *keyix;
3047         return 1;
3048 }
3049
3050 static int
3051 rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k)
3052 {
3053         struct rum_softc *sc = vap->iv_ic->ic_softc;
3054         int group;
3055
3056         if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3057                 /* Not for us. */
3058                 return 1;
3059         }
3060
3061         group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID];
3062
3063         return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3064                    group ? rum_group_key_set_cb : rum_pair_key_set_cb);
3065 }
3066
3067 static int
3068 rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
3069 {
3070         struct rum_softc *sc = vap->iv_ic->ic_softc;
3071         int group;
3072
3073         if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3074                 /* Not for us. */
3075                 return 1;
3076         }
3077
3078         group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID];
3079
3080         return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3081                    group ? rum_group_key_del_cb : rum_pair_key_del_cb);
3082 }
3083
3084 static int
3085 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3086     const struct ieee80211_bpf_params *params)
3087 {
3088         struct rum_softc *sc = ni->ni_ic->ic_softc;
3089         int ret;
3090
3091         RUM_LOCK(sc);
3092         /* prevent management frames from being sent if we're not ready */
3093         if (!sc->sc_running) {
3094                 ret = ENETDOWN;
3095                 goto bad;
3096         }
3097         if (sc->tx_nfree < RUM_TX_MINFREE) {
3098                 ret = EIO;
3099                 goto bad;
3100         }
3101
3102         if (params == NULL) {
3103                 /*
3104                  * Legacy path; interpret frame contents to decide
3105                  * precisely how to send the frame.
3106                  */
3107                 if ((ret = rum_tx_mgt(sc, m, ni)) != 0)
3108                         goto bad;
3109         } else {
3110                 /*
3111                  * Caller supplied explicit parameters to use in
3112                  * sending the frame.
3113                  */
3114                 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0)
3115                         goto bad;
3116         }
3117         RUM_UNLOCK(sc);
3118
3119         return 0;
3120 bad:
3121         RUM_UNLOCK(sc);
3122         m_freem(m);
3123         return ret;
3124 }
3125
3126 static void
3127 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
3128 {
3129         struct ieee80211vap *vap = ni->ni_vap;
3130         struct rum_vap *rvp = RUM_VAP(vap);
3131
3132         /* clear statistic registers (STA_CSR0 to STA_CSR5) */
3133         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
3134
3135         usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3136 }
3137
3138 static void
3139 rum_ratectl_timeout(void *arg)
3140 {
3141         struct rum_vap *rvp = arg;
3142         struct ieee80211vap *vap = &rvp->vap;
3143         struct ieee80211com *ic = vap->iv_ic;
3144
3145         ieee80211_runtask(ic, &rvp->ratectl_task);
3146 }
3147
3148 static void
3149 rum_ratectl_task(void *arg, int pending)
3150 {
3151         struct rum_vap *rvp = arg;
3152         struct ieee80211vap *vap = &rvp->vap;
3153         struct rum_softc *sc = vap->iv_ic->ic_softc;
3154         struct ieee80211_ratectl_tx_stats *txs = &sc->sc_txs;
3155         int ok[3], fail;
3156
3157         RUM_LOCK(sc);
3158         /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */
3159         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
3160
3161         ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */
3162         ok[1] = (le32toh(sc->sta[4]) >> 16);    /* TX ok w/ one retry */
3163         ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */
3164         fail =  (le32toh(sc->sta[5]) >> 16);    /* TX retry-fail count */
3165
3166         txs->flags = IEEE80211_RATECTL_TX_STATS_RETRIES;
3167         txs->nframes = ok[0] + ok[1] + ok[2] + fail;
3168         txs->nsuccess = txs->nframes - fail;
3169         /* XXX at least */
3170         txs->nretries = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1);
3171
3172         if (txs->nframes != 0)
3173                 ieee80211_ratectl_tx_update(vap, txs);
3174
3175         /* count TX retry-fail as Tx errors */
3176         if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail);
3177
3178         usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3179         RUM_UNLOCK(sc);
3180 }
3181
3182 static void
3183 rum_scan_start(struct ieee80211com *ic)
3184 {
3185         struct rum_softc *sc = ic->ic_softc;
3186
3187         RUM_LOCK(sc);
3188         rum_abort_tsf_sync(sc);
3189         rum_set_bssid(sc, ieee80211broadcastaddr);
3190         RUM_UNLOCK(sc);
3191
3192 }
3193
3194 static void
3195 rum_scan_end(struct ieee80211com *ic)
3196 {
3197         struct rum_softc *sc = ic->ic_softc;
3198
3199         if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
3200                 RUM_LOCK(sc);
3201                 if (ic->ic_opmode != IEEE80211_M_AHDEMO)
3202                         rum_enable_tsf_sync(sc);
3203                 else
3204                         rum_enable_tsf(sc);
3205                 rum_set_bssid(sc, sc->sc_bssid);
3206                 RUM_UNLOCK(sc);
3207         }
3208 }
3209
3210 static void
3211 rum_set_channel(struct ieee80211com *ic)
3212 {
3213         struct rum_softc *sc = ic->ic_softc;
3214
3215         RUM_LOCK(sc);
3216         rum_set_chan(sc, ic->ic_curchan);
3217         RUM_UNLOCK(sc);
3218 }
3219
3220 static void
3221 rum_getradiocaps(struct ieee80211com *ic,
3222     int maxchans, int *nchans, struct ieee80211_channel chans[])
3223 {
3224         struct rum_softc *sc = ic->ic_softc;
3225         uint8_t bands[IEEE80211_MODE_BYTES];
3226
3227         memset(bands, 0, sizeof(bands));
3228         setbit(bands, IEEE80211_MODE_11B);
3229         setbit(bands, IEEE80211_MODE_11G);
3230         ieee80211_add_channel_list_2ghz(chans, maxchans, nchans,
3231             rum_chan_2ghz, nitems(rum_chan_2ghz), bands, 0);
3232
3233         if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
3234                 setbit(bands, IEEE80211_MODE_11A);
3235                 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
3236                     rum_chan_5ghz, nitems(rum_chan_5ghz), bands, 0);
3237         }
3238 }
3239
3240 static int
3241 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
3242 {
3243         struct ieee80211com *ic = &sc->sc_ic;
3244         int lna, agc, rssi;
3245
3246         lna = (raw >> 5) & 0x3;
3247         agc = raw & 0x1f;
3248
3249         if (lna == 0) {
3250                 /*
3251                  * No RSSI mapping
3252                  *
3253                  * NB: Since RSSI is relative to noise floor, -1 is
3254                  *     adequate for caller to know error happened.
3255                  */
3256                 return -1;
3257         }
3258
3259         rssi = (2 * agc) - RT2573_NOISE_FLOOR;
3260
3261         if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
3262                 rssi += sc->rssi_2ghz_corr;
3263
3264                 if (lna == 1)
3265                         rssi -= 64;
3266                 else if (lna == 2)
3267                         rssi -= 74;
3268                 else if (lna == 3)
3269                         rssi -= 90;
3270         } else {
3271                 rssi += sc->rssi_5ghz_corr;
3272
3273                 if (!sc->ext_5ghz_lna && lna != 1)
3274                         rssi += 4;
3275
3276                 if (lna == 1)
3277                         rssi -= 64;
3278                 else if (lna == 2)
3279                         rssi -= 86;
3280                 else if (lna == 3)
3281                         rssi -= 100;
3282         }
3283         return rssi;
3284 }
3285
3286 static int
3287 rum_pause(struct rum_softc *sc, int timeout)
3288 {
3289
3290         usb_pause_mtx(&sc->sc_mtx, timeout);
3291         return (0);
3292 }
3293
3294 static device_method_t rum_methods[] = {
3295         /* Device interface */
3296         DEVMETHOD(device_probe,         rum_match),
3297         DEVMETHOD(device_attach,        rum_attach),
3298         DEVMETHOD(device_detach,        rum_detach),
3299         DEVMETHOD_END
3300 };
3301
3302 static driver_t rum_driver = {
3303         .name = "rum",
3304         .methods = rum_methods,
3305         .size = sizeof(struct rum_softc),
3306 };
3307
3308 static devclass_t rum_devclass;
3309
3310 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0);
3311 MODULE_DEPEND(rum, wlan, 1, 1, 1);
3312 MODULE_DEPEND(rum, usb, 1, 1, 1);
3313 MODULE_VERSION(rum, 1);
3314 USB_PNP_HOST_INFO(rum_devs);