sys/dev/usb/wlan/if_rum.c

   1 /*      $FreeBSD$       */
   2
   3 /*-
   4  * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr>
   5  * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
   6  * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org>
   7  * Copyright (c) 2015 Andriy Voskoboinyk <avos@FreeBSD.org>
   8  *
   9  * Permission to use, copy, modify, and distribute this software for any
  10  * purpose with or without fee is hereby granted, provided that the above
  11  * copyright notice and this permission notice appear in all copies.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  14  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  15  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  16  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  17  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  18  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  19  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  20  */
  21
  22 #include <sys/cdefs.h>
  23 __FBSDID("$FreeBSD$");
  24
  25 /*-
  26  * Ralink Technology RT2501USB/RT2601USB chipset driver
  27  * http://www.ralinktech.com.tw/
  28  */
  29
  30 #include "opt_wlan.h"
  31
  32 #include <sys/param.h>
  33 #include <sys/sockio.h>
  34 #include <sys/sysctl.h>
  35 #include <sys/lock.h>
  36 #include <sys/mutex.h>
  37 #include <sys/mbuf.h>
  38 #include <sys/kernel.h>
  39 #include <sys/socket.h>
  40 #include <sys/systm.h>
  41 #include <sys/malloc.h>
  42 #include <sys/module.h>
  43 #include <sys/bus.h>
  44 #include <sys/endian.h>
  45 #include <sys/kdb.h>
  46
  47 #include <net/bpf.h>
  48 #include <net/if.h>
  49 #include <net/if_var.h>
  50 #include <net/if_arp.h>
  51 #include <net/ethernet.h>
  52 #include <net/if_dl.h>
  53 #include <net/if_media.h>
  54 #include <net/if_types.h>
  55
  56 #ifdef INET
  57 #include <netinet/in.h>
  58 #include <netinet/in_systm.h>
  59 #include <netinet/in_var.h>
  60 #include <netinet/if_ether.h>
  61 #include <netinet/ip.h>
  62 #endif
  63
  64 #include <net80211/ieee80211_var.h>
  65 #include <net80211/ieee80211_regdomain.h>
  66 #include <net80211/ieee80211_radiotap.h>
  67 #include <net80211/ieee80211_ratectl.h>
  68
  69 #include <dev/usb/usb.h>
  70 #include <dev/usb/usbdi.h>
  71 #include "usbdevs.h"
  72
  73 #define USB_DEBUG_VAR rum_debug
  74 #include <dev/usb/usb_debug.h>
  75
  76 #include <dev/usb/wlan/if_rumreg.h>
  77 #include <dev/usb/wlan/if_rumvar.h>
  78 #include <dev/usb/wlan/if_rumfw.h>
  79
  80 #ifdef USB_DEBUG
  81 static int rum_debug = 0;
  82
  83 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum");
  84 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0,
  85     "Debug level");
  86 #endif
  87
  88 static const STRUCT_USB_HOST_ID rum_devs[] = {
  89 #define RUM_DEV(v,p)  { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) }
  90     RUM_DEV(ABOCOM, HWU54DM),
  91     RUM_DEV(ABOCOM, RT2573_2),
  92     RUM_DEV(ABOCOM, RT2573_3),
  93     RUM_DEV(ABOCOM, RT2573_4),
  94     RUM_DEV(ABOCOM, WUG2700),
  95     RUM_DEV(AMIT, CGWLUSB2GO),
  96     RUM_DEV(ASUS, RT2573_1),
  97     RUM_DEV(ASUS, RT2573_2),
  98     RUM_DEV(BELKIN, F5D7050A),
  99     RUM_DEV(BELKIN, F5D9050V3),
 100     RUM_DEV(CISCOLINKSYS, WUSB54GC),
 101     RUM_DEV(CISCOLINKSYS, WUSB54GR),
 102     RUM_DEV(CONCEPTRONIC2, C54RU2),
 103     RUM_DEV(COREGA, CGWLUSB2GL),
 104     RUM_DEV(COREGA, CGWLUSB2GPX),
 105     RUM_DEV(DICKSMITH, CWD854F),
 106     RUM_DEV(DICKSMITH, RT2573),
 107     RUM_DEV(EDIMAX, EW7318USG),
 108     RUM_DEV(DLINK2, DWLG122C1),
 109     RUM_DEV(DLINK2, WUA1340),
 110     RUM_DEV(DLINK2, DWA111),
 111     RUM_DEV(DLINK2, DWA110),
 112     RUM_DEV(GIGABYTE, GNWB01GS),
 113     RUM_DEV(GIGABYTE, GNWI05GS),
 114     RUM_DEV(GIGASET, RT2573),
 115     RUM_DEV(GOODWAY, RT2573),
 116     RUM_DEV(GUILLEMOT, HWGUSB254LB),
 117     RUM_DEV(GUILLEMOT, HWGUSB254V2AP),
 118     RUM_DEV(HUAWEI3COM, WUB320G),
 119     RUM_DEV(MELCO, G54HP),
 120     RUM_DEV(MELCO, SG54HP),
 121     RUM_DEV(MELCO, SG54HG),
 122     RUM_DEV(MELCO, WLIUCG),
 123     RUM_DEV(MELCO, WLRUCG),
 124     RUM_DEV(MELCO, WLRUCGAOSS),
 125     RUM_DEV(MSI, RT2573_1),
 126     RUM_DEV(MSI, RT2573_2),
 127     RUM_DEV(MSI, RT2573_3),
 128     RUM_DEV(MSI, RT2573_4),
 129     RUM_DEV(NOVATECH, RT2573),
 130     RUM_DEV(PLANEX2, GWUS54HP),
 131     RUM_DEV(PLANEX2, GWUS54MINI2),
 132     RUM_DEV(PLANEX2, GWUSMM),
 133     RUM_DEV(QCOM, RT2573),
 134     RUM_DEV(QCOM, RT2573_2),
 135     RUM_DEV(QCOM, RT2573_3),
 136     RUM_DEV(RALINK, RT2573),
 137     RUM_DEV(RALINK, RT2573_2),
 138     RUM_DEV(RALINK, RT2671),
 139     RUM_DEV(SITECOMEU, WL113R2),
 140     RUM_DEV(SITECOMEU, WL172),
 141     RUM_DEV(SPARKLAN, RT2573),
 142     RUM_DEV(SURECOM, RT2573),
 143 #undef RUM_DEV
 144 };
 145
 146 static device_probe_t rum_match;
 147 static device_attach_t rum_attach;
 148 static device_detach_t rum_detach;
 149
 150 static usb_callback_t rum_bulk_read_callback;
 151 static usb_callback_t rum_bulk_write_callback;
 152
 153 static usb_error_t      rum_do_request(struct rum_softc *sc,
 154                             struct usb_device_request *req, void *data);
 155 static usb_error_t      rum_do_mcu_request(struct rum_softc *sc, int);
 156 static struct ieee80211vap *rum_vap_create(struct ieee80211com *,
 157                             const char [IFNAMSIZ], int, enum ieee80211_opmode,
 158                             int, const uint8_t [IEEE80211_ADDR_LEN],
 159                             const uint8_t [IEEE80211_ADDR_LEN]);
 160 static void             rum_vap_delete(struct ieee80211vap *);
 161 static void             rum_cmdq_cb(void *, int);
 162 static int              rum_cmd_sleepable(struct rum_softc *, const void *,
 163                             size_t, uint8_t, CMD_FUNC_PROTO);
 164 static void             rum_tx_free(struct rum_tx_data *, int);
 165 static void             rum_setup_tx_list(struct rum_softc *);
 166 static void             rum_reset_tx_list(struct rum_softc *,
 167                             struct ieee80211vap *);
 168 static void             rum_unsetup_tx_list(struct rum_softc *);
 169 static void             rum_beacon_miss(struct ieee80211vap *);
 170 static void             rum_sta_recv_mgmt(struct ieee80211_node *,
 171                             struct mbuf *, int,
 172                             const struct ieee80211_rx_stats *, int, int);
 173 static int              rum_set_power_state(struct rum_softc *, int);
 174 static int              rum_newstate(struct ieee80211vap *,
 175                             enum ieee80211_state, int);
 176 static uint8_t          rum_crypto_mode(struct rum_softc *, u_int, int);
 177 static void             rum_setup_tx_desc(struct rum_softc *,
 178                             struct rum_tx_desc *, struct ieee80211_key *,
 179                             uint32_t, uint8_t, uint8_t, int, int, int);
 180 static uint32_t         rum_tx_crypto_flags(struct rum_softc *,
 181                             struct ieee80211_node *,
 182                             const struct ieee80211_key *);
 183 static int              rum_tx_mgt(struct rum_softc *, struct mbuf *,
 184                             struct ieee80211_node *);
 185 static int              rum_tx_raw(struct rum_softc *, struct mbuf *,
 186                             struct ieee80211_node *,
 187                             const struct ieee80211_bpf_params *);
 188 static int              rum_tx_data(struct rum_softc *, struct mbuf *,
 189                             struct ieee80211_node *);
 190 static int              rum_transmit(struct ieee80211com *, struct mbuf *);
 191 static void             rum_start(struct rum_softc *);
 192 static void             rum_parent(struct ieee80211com *);
 193 static void             rum_eeprom_read(struct rum_softc *, uint16_t, void *,
 194                             int);
 195 static uint32_t         rum_read(struct rum_softc *, uint16_t);
 196 static void             rum_read_multi(struct rum_softc *, uint16_t, void *,
 197                             int);
 198 static usb_error_t      rum_write(struct rum_softc *, uint16_t, uint32_t);
 199 static usb_error_t      rum_write_multi(struct rum_softc *, uint16_t, void *,
 200                             size_t);
 201 static usb_error_t      rum_setbits(struct rum_softc *, uint16_t, uint32_t);
 202 static usb_error_t      rum_clrbits(struct rum_softc *, uint16_t, uint32_t);
 203 static usb_error_t      rum_modbits(struct rum_softc *, uint16_t, uint32_t,
 204                             uint32_t);
 205 static int              rum_bbp_busy(struct rum_softc *);
 206 static void             rum_bbp_write(struct rum_softc *, uint8_t, uint8_t);
 207 static uint8_t          rum_bbp_read(struct rum_softc *, uint8_t);
 208 static void             rum_rf_write(struct rum_softc *, uint8_t, uint32_t);
 209 static void             rum_select_antenna(struct rum_softc *);
 210 static void             rum_enable_mrr(struct rum_softc *);
 211 static void             rum_set_txpreamble(struct rum_softc *);
 212 static void             rum_set_basicrates(struct rum_softc *);
 213 static void             rum_select_band(struct rum_softc *,
 214                             struct ieee80211_channel *);
 215 static void             rum_set_chan(struct rum_softc *,
 216                             struct ieee80211_channel *);
 217 static void             rum_set_maxretry(struct rum_softc *,
 218                             struct ieee80211vap *);
 219 static int              rum_enable_tsf_sync(struct rum_softc *);
 220 static void             rum_enable_tsf(struct rum_softc *);
 221 static void             rum_abort_tsf_sync(struct rum_softc *);
 222 static void             rum_get_tsf(struct rum_softc *, uint64_t *);
 223 static void             rum_update_slot_cb(struct rum_softc *,
 224                             union sec_param *, uint8_t);
 225 static void             rum_update_slot(struct ieee80211com *);
 226 static int              rum_wme_update(struct ieee80211com *);
 227 static void             rum_set_bssid(struct rum_softc *, const uint8_t *);
 228 static void             rum_set_macaddr(struct rum_softc *, const uint8_t *);
 229 static void             rum_update_mcast(struct ieee80211com *);
 230 static void             rum_update_promisc(struct ieee80211com *);
 231 static void             rum_setpromisc(struct rum_softc *);
 232 static const char       *rum_get_rf(int);
 233 static void             rum_read_eeprom(struct rum_softc *);
 234 static int              rum_bbp_wakeup(struct rum_softc *);
 235 static int              rum_bbp_init(struct rum_softc *);
 236 static void             rum_clr_shkey_regs(struct rum_softc *);
 237 static int              rum_init(struct rum_softc *);
 238 static void             rum_stop(struct rum_softc *);
 239 static void             rum_load_microcode(struct rum_softc *, const uint8_t *,
 240                             size_t);
 241 static int              rum_set_sleep_time(struct rum_softc *, uint16_t);
 242 static int              rum_reset(struct ieee80211vap *, u_long);
 243 static int              rum_set_beacon(struct rum_softc *,
 244                             struct ieee80211vap *);
 245 static int              rum_alloc_beacon(struct rum_softc *,
 246                             struct ieee80211vap *);
 247 static void             rum_update_beacon_cb(struct rum_softc *,
 248                             union sec_param *, uint8_t);
 249 static void             rum_update_beacon(struct ieee80211vap *, int);
 250 static int              rum_common_key_set(struct rum_softc *,
 251                             struct ieee80211_key *, uint16_t);
 252 static void             rum_group_key_set_cb(struct rum_softc *,
 253                             union sec_param *, uint8_t);
 254 static void             rum_group_key_del_cb(struct rum_softc *,
 255                             union sec_param *, uint8_t);
 256 static void             rum_pair_key_set_cb(struct rum_softc *,
 257                             union sec_param *, uint8_t);
 258 static void             rum_pair_key_del_cb(struct rum_softc *,
 259                             union sec_param *, uint8_t);
 260 static int              rum_key_alloc(struct ieee80211vap *,
 261                             struct ieee80211_key *, ieee80211_keyix *,
 262                             ieee80211_keyix *);
 263 static int              rum_key_set(struct ieee80211vap *,
 264                             const struct ieee80211_key *);
 265 static int              rum_key_delete(struct ieee80211vap *,
 266                             const struct ieee80211_key *);
 267 static int              rum_raw_xmit(struct ieee80211_node *, struct mbuf *,
 268                             const struct ieee80211_bpf_params *);
 269 static void             rum_scan_start(struct ieee80211com *);
 270 static void             rum_scan_end(struct ieee80211com *);
 271 static void             rum_set_channel(struct ieee80211com *);
 272 static void             rum_getradiocaps(struct ieee80211com *, int, int *,
 273                             struct ieee80211_channel[]);
 274 static int              rum_get_rssi(struct rum_softc *, uint8_t);
 275 static void             rum_ratectl_start(struct rum_softc *,
 276                             struct ieee80211_node *);
 277 static void             rum_ratectl_timeout(void *);
 278 static void             rum_ratectl_task(void *, int);
 279 static int              rum_pause(struct rum_softc *, int);
 280
 281 static const struct {
 282         uint32_t        reg;
 283         uint32_t        val;
 284 } rum_def_mac[] = {
 285         { RT2573_TXRX_CSR0,  0x025fb032 },
 286         { RT2573_TXRX_CSR1,  0x9eaa9eaf },
 287         { RT2573_TXRX_CSR2,  0x8a8b8c8d },
 288         { RT2573_TXRX_CSR3,  0x00858687 },
 289         { RT2573_TXRX_CSR7,  0x2e31353b },
 290         { RT2573_TXRX_CSR8,  0x2a2a2a2c },
 291         { RT2573_TXRX_CSR15, 0x0000000f },
 292         { RT2573_MAC_CSR6,   0x00000fff },
 293         { RT2573_MAC_CSR8,   0x016c030a },
 294         { RT2573_MAC_CSR10,  0x00000718 },
 295         { RT2573_MAC_CSR12,  0x00000004 },
 296         { RT2573_MAC_CSR13,  0x00007f00 },
 297         { RT2573_SEC_CSR2,   0x00000000 },
 298         { RT2573_SEC_CSR3,   0x00000000 },
 299         { RT2573_SEC_CSR4,   0x00000000 },
 300         { RT2573_PHY_CSR1,   0x000023b0 },
 301         { RT2573_PHY_CSR5,   0x00040a06 },
 302         { RT2573_PHY_CSR6,   0x00080606 },
 303         { RT2573_PHY_CSR7,   0x00000408 },
 304         { RT2573_AIFSN_CSR,  0x00002273 },
 305         { RT2573_CWMIN_CSR,  0x00002344 },
 306         { RT2573_CWMAX_CSR,  0x000034aa }
 307 };
 308
 309 static const struct {
 310         uint8_t reg;
 311         uint8_t val;
 312 } rum_def_bbp[] = {
 313         {   3, 0x80 },
 314         {  15, 0x30 },
 315         {  17, 0x20 },
 316         {  21, 0xc8 },
 317         {  22, 0x38 },
 318         {  23, 0x06 },
 319         {  24, 0xfe },
 320         {  25, 0x0a },
 321         {  26, 0x0d },
 322         {  32, 0x0b },
 323         {  34, 0x12 },
 324         {  37, 0x07 },
 325         {  39, 0xf8 },
 326         {  41, 0x60 },
 327         {  53, 0x10 },
 328         {  54, 0x18 },
 329         {  60, 0x10 },
 330         {  61, 0x04 },
 331         {  62, 0x04 },
 332         {  75, 0xfe },
 333         {  86, 0xfe },
 334         {  88, 0xfe },
 335         {  90, 0x0f },
 336         {  99, 0x00 },
 337         { 102, 0x16 },
 338         { 107, 0x04 }
 339 };
 340
 341 static const uint8_t rum_chan_5ghz[] =
 342         { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64,
 343           100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140,
 344           149, 153, 157, 161, 165 };
 345
 346 static const struct rfprog {
 347         uint8_t         chan;
 348         uint32_t        r1, r2, r3, r4;
 349 }  rum_rf5226[] = {
 350         {   1, 0x00b03, 0x001e1, 0x1a014, 0x30282 },
 351         {   2, 0x00b03, 0x001e1, 0x1a014, 0x30287 },
 352         {   3, 0x00b03, 0x001e2, 0x1a014, 0x30282 },
 353         {   4, 0x00b03, 0x001e2, 0x1a014, 0x30287 },
 354         {   5, 0x00b03, 0x001e3, 0x1a014, 0x30282 },
 355         {   6, 0x00b03, 0x001e3, 0x1a014, 0x30287 },
 356         {   7, 0x00b03, 0x001e4, 0x1a014, 0x30282 },
 357         {   8, 0x00b03, 0x001e4, 0x1a014, 0x30287 },
 358         {   9, 0x00b03, 0x001e5, 0x1a014, 0x30282 },
 359         {  10, 0x00b03, 0x001e5, 0x1a014, 0x30287 },
 360         {  11, 0x00b03, 0x001e6, 0x1a014, 0x30282 },
 361         {  12, 0x00b03, 0x001e6, 0x1a014, 0x30287 },
 362         {  13, 0x00b03, 0x001e7, 0x1a014, 0x30282 },
 363         {  14, 0x00b03, 0x001e8, 0x1a014, 0x30284 },
 364
 365         {  34, 0x00b03, 0x20266, 0x36014, 0x30282 },
 366         {  38, 0x00b03, 0x20267, 0x36014, 0x30284 },
 367         {  42, 0x00b03, 0x20268, 0x36014, 0x30286 },
 368         {  46, 0x00b03, 0x20269, 0x36014, 0x30288 },
 369
 370         {  36, 0x00b03, 0x00266, 0x26014, 0x30288 },
 371         {  40, 0x00b03, 0x00268, 0x26014, 0x30280 },
 372         {  44, 0x00b03, 0x00269, 0x26014, 0x30282 },
 373         {  48, 0x00b03, 0x0026a, 0x26014, 0x30284 },
 374         {  52, 0x00b03, 0x0026b, 0x26014, 0x30286 },
 375         {  56, 0x00b03, 0x0026c, 0x26014, 0x30288 },
 376         {  60, 0x00b03, 0x0026e, 0x26014, 0x30280 },
 377         {  64, 0x00b03, 0x0026f, 0x26014, 0x30282 },
 378
 379         { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 },
 380         { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 },
 381         { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 },
 382         { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 },
 383         { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 },
 384         { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 },
 385         { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 },
 386         { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 },
 387         { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 },
 388         { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 },
 389         { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 },
 390
 391         { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 },
 392         { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 },
 393         { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 },
 394         { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 },
 395         { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 }
 396 }, rum_rf5225[] = {
 397         {   1, 0x00b33, 0x011e1, 0x1a014, 0x30282 },
 398         {   2, 0x00b33, 0x011e1, 0x1a014, 0x30287 },
 399         {   3, 0x00b33, 0x011e2, 0x1a014, 0x30282 },
 400         {   4, 0x00b33, 0x011e2, 0x1a014, 0x30287 },
 401         {   5, 0x00b33, 0x011e3, 0x1a014, 0x30282 },
 402         {   6, 0x00b33, 0x011e3, 0x1a014, 0x30287 },
 403         {   7, 0x00b33, 0x011e4, 0x1a014, 0x30282 },
 404         {   8, 0x00b33, 0x011e4, 0x1a014, 0x30287 },
 405         {   9, 0x00b33, 0x011e5, 0x1a014, 0x30282 },
 406         {  10, 0x00b33, 0x011e5, 0x1a014, 0x30287 },
 407         {  11, 0x00b33, 0x011e6, 0x1a014, 0x30282 },
 408         {  12, 0x00b33, 0x011e6, 0x1a014, 0x30287 },
 409         {  13, 0x00b33, 0x011e7, 0x1a014, 0x30282 },
 410         {  14, 0x00b33, 0x011e8, 0x1a014, 0x30284 },
 411
 412         {  34, 0x00b33, 0x01266, 0x26014, 0x30282 },
 413         {  38, 0x00b33, 0x01267, 0x26014, 0x30284 },
 414         {  42, 0x00b33, 0x01268, 0x26014, 0x30286 },
 415         {  46, 0x00b33, 0x01269, 0x26014, 0x30288 },
 416
 417         {  36, 0x00b33, 0x01266, 0x26014, 0x30288 },
 418         {  40, 0x00b33, 0x01268, 0x26014, 0x30280 },
 419         {  44, 0x00b33, 0x01269, 0x26014, 0x30282 },
 420         {  48, 0x00b33, 0x0126a, 0x26014, 0x30284 },
 421         {  52, 0x00b33, 0x0126b, 0x26014, 0x30286 },
 422         {  56, 0x00b33, 0x0126c, 0x26014, 0x30288 },
 423         {  60, 0x00b33, 0x0126e, 0x26014, 0x30280 },
 424         {  64, 0x00b33, 0x0126f, 0x26014, 0x30282 },
 425
 426         { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 },
 427         { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 },
 428         { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 },
 429         { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 },
 430         { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 },
 431         { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 },
 432         { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 },
 433         { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 },
 434         { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 },
 435         { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 },
 436         { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 },
 437
 438         { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 },
 439         { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 },
 440         { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 },
 441         { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 },
 442         { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 }
 443 };
 444
 445 static const struct usb_config rum_config[RUM_N_TRANSFER] = {
 446         [RUM_BULK_WR] = {
 447                 .type = UE_BULK,
 448                 .endpoint = UE_ADDR_ANY,
 449                 .direction = UE_DIR_OUT,
 450                 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8),
 451                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
 452                 .callback = rum_bulk_write_callback,
 453                 .timeout = 5000,        /* ms */
 454         },
 455         [RUM_BULK_RD] = {
 456                 .type = UE_BULK,
 457                 .endpoint = UE_ADDR_ANY,
 458                 .direction = UE_DIR_IN,
 459                 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE),
 460                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
 461                 .callback = rum_bulk_read_callback,
 462         },
 463 };
 464
 465 static int
 466 rum_match(device_t self)
 467 {
 468         struct usb_attach_arg *uaa = device_get_ivars(self);
 469
 470         if (uaa->usb_mode != USB_MODE_HOST)
 471                 return (ENXIO);
 472         if (uaa->info.bConfigIndex != 0)
 473                 return (ENXIO);
 474         if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX)
 475                 return (ENXIO);
 476
 477         return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa));
 478 }
 479
 480 static int
 481 rum_attach(device_t self)
 482 {
 483         struct usb_attach_arg *uaa = device_get_ivars(self);
 484         struct rum_softc *sc = device_get_softc(self);
 485         struct ieee80211com *ic = &sc->sc_ic;
 486         uint32_t tmp;
 487         uint8_t iface_index;
 488         int error, ntries;
 489
 490         device_set_usb_desc(self);
 491         sc->sc_udev = uaa->device;
 492         sc->sc_dev = self;
 493
 494         RUM_LOCK_INIT(sc);
 495         RUM_CMDQ_LOCK_INIT(sc);
 496         mbufq_init(&sc->sc_snd, ifqmaxlen);
 497
 498         iface_index = RT2573_IFACE_INDEX;
 499         error = usbd_transfer_setup(uaa->device, &iface_index,
 500             sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx);
 501         if (error) {
 502                 device_printf(self, "could not allocate USB transfers, "
 503                     "err=%s\n", usbd_errstr(error));
 504                 goto detach;
 505         }
 506
 507         RUM_LOCK(sc);
 508         /* retrieve RT2573 rev. no */
 509         for (ntries = 0; ntries < 100; ntries++) {
 510                 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0)
 511                         break;
 512                 if (rum_pause(sc, hz / 100))
 513                         break;
 514         }
 515         if (ntries == 100) {
 516                 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n");
 517                 RUM_UNLOCK(sc);
 518                 goto detach;
 519         }
 520
 521         /* retrieve MAC address and various other things from EEPROM */
 522         rum_read_eeprom(sc);
 523
 524         device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n",
 525             tmp, rum_get_rf(sc->rf_rev));
 526
 527         rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode));
 528         RUM_UNLOCK(sc);
 529
 530         ic->ic_softc = sc;
 531         ic->ic_name = device_get_nameunit(self);
 532         ic->ic_phytype = IEEE80211_T_OFDM;      /* not only, but not used */
 533
 534         /* set device capabilities */
 535         ic->ic_caps =
 536               IEEE80211_C_STA           /* station mode supported */
 537             | IEEE80211_C_IBSS          /* IBSS mode supported */
 538             | IEEE80211_C_MONITOR       /* monitor mode supported */
 539             | IEEE80211_C_HOSTAP        /* HostAp mode supported */
 540             | IEEE80211_C_AHDEMO        /* adhoc demo mode */
 541             | IEEE80211_C_TXPMGT        /* tx power management */
 542             | IEEE80211_C_SHPREAMBLE    /* short preamble supported */
 543             | IEEE80211_C_SHSLOT        /* short slot time supported */
 544             | IEEE80211_C_BGSCAN        /* bg scanning supported */
 545             | IEEE80211_C_WPA           /* 802.11i */
 546             | IEEE80211_C_WME           /* 802.11e */
 547             | IEEE80211_C_PMGT          /* Station-side power mgmt */
 548             | IEEE80211_C_SWSLEEP       /* net80211 managed power mgmt */
 549             ;
 550
 551         ic->ic_cryptocaps =
 552             IEEE80211_CRYPTO_WEP |
 553             IEEE80211_CRYPTO_AES_CCM |
 554             IEEE80211_CRYPTO_TKIPMIC |
 555             IEEE80211_CRYPTO_TKIP;
 556
 557         rum_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans,
 558             ic->ic_channels);
 559
 560         ieee80211_ifattach(ic);
 561         ic->ic_update_promisc = rum_update_promisc;
 562         ic->ic_raw_xmit = rum_raw_xmit;
 563         ic->ic_scan_start = rum_scan_start;
 564         ic->ic_scan_end = rum_scan_end;
 565         ic->ic_set_channel = rum_set_channel;
 566         ic->ic_getradiocaps = rum_getradiocaps;
 567         ic->ic_transmit = rum_transmit;
 568         ic->ic_parent = rum_parent;
 569         ic->ic_vap_create = rum_vap_create;
 570         ic->ic_vap_delete = rum_vap_delete;
 571         ic->ic_updateslot = rum_update_slot;
 572         ic->ic_wme.wme_update = rum_wme_update;
 573         ic->ic_update_mcast = rum_update_mcast;
 574
 575         ieee80211_radiotap_attach(ic,
 576             &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap),
 577                 RT2573_TX_RADIOTAP_PRESENT,
 578             &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap),
 579                 RT2573_RX_RADIOTAP_PRESENT);
 580
 581         TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc);
 582
 583         if (bootverbose)
 584                 ieee80211_announce(ic);
 585
 586         return (0);
 587
 588 detach:
 589         rum_detach(self);
 590         return (ENXIO);                 /* failure */
 591 }
 592
 593 static int
 594 rum_detach(device_t self)
 595 {
 596         struct rum_softc *sc = device_get_softc(self);
 597         struct ieee80211com *ic = &sc->sc_ic;
 598
 599         /* Prevent further ioctls */
 600         RUM_LOCK(sc);
 601         sc->sc_detached = 1;
 602         RUM_UNLOCK(sc);
 603
 604         /* stop all USB transfers */
 605         usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER);
 606
 607         /* free TX list, if any */
 608         RUM_LOCK(sc);
 609         rum_unsetup_tx_list(sc);
 610         RUM_UNLOCK(sc);
 611
 612         if (ic->ic_softc == sc) {
 613                 ieee80211_draintask(ic, &sc->cmdq_task);
 614                 ieee80211_ifdetach(ic);
 615         }
 616
 617         mbufq_drain(&sc->sc_snd);
 618         RUM_CMDQ_LOCK_DESTROY(sc);
 619         RUM_LOCK_DESTROY(sc);
 620
 621         return (0);
 622 }
 623
 624 static usb_error_t
 625 rum_do_request(struct rum_softc *sc,
 626     struct usb_device_request *req, void *data)
 627 {
 628         usb_error_t err;
 629         int ntries = 10;
 630
 631         while (ntries--) {
 632                 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx,
 633                     req, data, 0, NULL, 250 /* ms */);
 634                 if (err == 0)
 635                         break;
 636
 637                 DPRINTFN(1, "Control request failed, %s (retrying)\n",
 638                     usbd_errstr(err));
 639                 if (rum_pause(sc, hz / 100))
 640                         break;
 641         }
 642         return (err);
 643 }
 644
 645 static usb_error_t
 646 rum_do_mcu_request(struct rum_softc *sc, int request)
 647 {
 648         struct usb_device_request req;
 649
 650         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
 651         req.bRequest = RT2573_MCU_CNTL;
 652         USETW(req.wValue, request);
 653         USETW(req.wIndex, 0);
 654         USETW(req.wLength, 0);
 655
 656         return (rum_do_request(sc, &req, NULL));
 657 }
 658
 659 static struct ieee80211vap *
 660 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit,
 661     enum ieee80211_opmode opmode, int flags,
 662     const uint8_t bssid[IEEE80211_ADDR_LEN],
 663     const uint8_t mac[IEEE80211_ADDR_LEN])
 664 {
 665         struct rum_softc *sc = ic->ic_softc;
 666         struct rum_vap *rvp;
 667         struct ieee80211vap *vap;
 668
 669         if (!TAILQ_EMPTY(&ic->ic_vaps))         /* only one at a time */
 670                 return NULL;
 671         rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO);
 672         vap = &rvp->vap;
 673         /* enable s/w bmiss handling for sta mode */
 674
 675         if (ieee80211_vap_setup(ic, vap, name, unit, opmode,
 676             flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) {
 677                 /* out of memory */
 678                 free(rvp, M_80211_VAP);
 679                 return (NULL);
 680         }
 681
 682         /* override state transition machine */
 683         rvp->newstate = vap->iv_newstate;
 684         vap->iv_newstate = rum_newstate;
 685         vap->iv_key_alloc = rum_key_alloc;
 686         vap->iv_key_set = rum_key_set;
 687         vap->iv_key_delete = rum_key_delete;
 688         vap->iv_update_beacon = rum_update_beacon;
 689         vap->iv_reset = rum_reset;
 690         vap->iv_max_aid = RT2573_ADDR_MAX;
 691
 692         if (opmode == IEEE80211_M_STA) {
 693                 /*
 694                  * Move device to the sleep state when
 695                  * beacon is received and there is no data for us.
 696                  *
 697                  * Used only for IEEE80211_S_SLEEP state.
 698                  */
 699                 rvp->recv_mgmt = vap->iv_recv_mgmt;
 700                 vap->iv_recv_mgmt = rum_sta_recv_mgmt;
 701
 702                 /* Ignored while sleeping. */
 703                 rvp->bmiss = vap->iv_bmiss;
 704                 vap->iv_bmiss = rum_beacon_miss;
 705         }
 706
 707         usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0);
 708         TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp);
 709         ieee80211_ratectl_init(vap);
 710         ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */);
 711         /* complete setup */
 712         ieee80211_vap_attach(vap, ieee80211_media_change,
 713             ieee80211_media_status, mac);
 714         ic->ic_opmode = opmode;
 715         return vap;
 716 }
 717
 718 static void
 719 rum_vap_delete(struct ieee80211vap *vap)
 720 {
 721         struct rum_vap *rvp = RUM_VAP(vap);
 722         struct ieee80211com *ic = vap->iv_ic;
 723         struct rum_softc *sc = ic->ic_softc;
 724
 725         /* Put vap into INIT state. */
 726         ieee80211_new_state(vap, IEEE80211_S_INIT, -1);
 727         ieee80211_draintask(ic, &vap->iv_nstate_task);
 728
 729         RUM_LOCK(sc);
 730         /* Cancel any unfinished Tx. */
 731         rum_reset_tx_list(sc, vap);
 732         RUM_UNLOCK(sc);
 733
 734         usb_callout_drain(&rvp->ratectl_ch);
 735         ieee80211_draintask(ic, &rvp->ratectl_task);
 736         ieee80211_ratectl_deinit(vap);
 737         ieee80211_vap_detach(vap);
 738         m_freem(rvp->bcn_mbuf);
 739         free(rvp, M_80211_VAP);
 740 }
 741
 742 static void
 743 rum_cmdq_cb(void *arg, int pending)
 744 {
 745         struct rum_softc *sc = arg;
 746         struct rum_cmdq *rc;
 747
 748         RUM_CMDQ_LOCK(sc);
 749         while (sc->cmdq[sc->cmdq_first].func != NULL) {
 750                 rc = &sc->cmdq[sc->cmdq_first];
 751                 RUM_CMDQ_UNLOCK(sc);
 752
 753                 RUM_LOCK(sc);
 754                 rc->func(sc, &rc->data, rc->rvp_id);
 755                 RUM_UNLOCK(sc);
 756
 757                 RUM_CMDQ_LOCK(sc);
 758                 memset(rc, 0, sizeof (*rc));
 759                 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE;
 760         }
 761         RUM_CMDQ_UNLOCK(sc);
 762 }
 763
 764 static int
 765 rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len,
 766     uint8_t rvp_id, CMD_FUNC_PROTO)
 767 {
 768         struct ieee80211com *ic = &sc->sc_ic;
 769
 770         KASSERT(len <= sizeof(union sec_param), ("buffer overflow"));
 771
 772         RUM_CMDQ_LOCK(sc);
 773         if (sc->cmdq[sc->cmdq_last].func != NULL) {
 774                 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__);
 775                 RUM_CMDQ_UNLOCK(sc);
 776
 777                 return EAGAIN;
 778         }
 779
 780         if (ptr != NULL)
 781                 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len);
 782         sc->cmdq[sc->cmdq_last].rvp_id = rvp_id;
 783         sc->cmdq[sc->cmdq_last].func = func;
 784         sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE;
 785         RUM_CMDQ_UNLOCK(sc);
 786
 787         ieee80211_runtask(ic, &sc->cmdq_task);
 788
 789         return 0;
 790 }
 791
 792 static void
 793 rum_tx_free(struct rum_tx_data *data, int txerr)
 794 {
 795         struct rum_softc *sc = data->sc;
 796
 797         if (data->m != NULL) {
 798                 ieee80211_tx_complete(data->ni, data->m, txerr);
 799                 data->m = NULL;
 800                 data->ni = NULL;
 801         }
 802         STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 803         sc->tx_nfree++;
 804 }
 805
 806 static void
 807 rum_setup_tx_list(struct rum_softc *sc)
 808 {
 809         struct rum_tx_data *data;
 810         int i;
 811
 812         sc->tx_nfree = 0;
 813         STAILQ_INIT(&sc->tx_q);
 814         STAILQ_INIT(&sc->tx_free);
 815
 816         for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
 817                 data = &sc->tx_data[i];
 818
 819                 data->sc = sc;
 820                 STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 821                 sc->tx_nfree++;
 822         }
 823 }
 824
 825 static void
 826 rum_reset_tx_list(struct rum_softc *sc, struct ieee80211vap *vap)
 827 {
 828         struct rum_tx_data *data, *tmp;
 829
 830         KASSERT(vap != NULL, ("%s: vap is NULL\n", __func__));
 831
 832         STAILQ_FOREACH_SAFE(data, &sc->tx_q, next, tmp) {
 833                 if (data->ni != NULL && data->ni->ni_vap == vap) {
 834                         ieee80211_free_node(data->ni);
 835                         data->ni = NULL;
 836
 837                         KASSERT(data->m != NULL, ("%s: m is NULL\n",
 838                             __func__));
 839                         m_freem(data->m);
 840                         data->m = NULL;
 841
 842                         STAILQ_REMOVE(&sc->tx_q, data, rum_tx_data, next);
 843                         STAILQ_INSERT_TAIL(&sc->tx_free, data, next);
 844                         sc->tx_nfree++;
 845                 }
 846         }
 847 }
 848
 849 static void
 850 rum_unsetup_tx_list(struct rum_softc *sc)
 851 {
 852         struct rum_tx_data *data;
 853         int i;
 854
 855         /* make sure any subsequent use of the queues will fail */
 856         sc->tx_nfree = 0;
 857         STAILQ_INIT(&sc->tx_q);
 858         STAILQ_INIT(&sc->tx_free);
 859
 860         /* free up all node references and mbufs */
 861         for (i = 0; i < RUM_TX_LIST_COUNT; i++) {
 862                 data = &sc->tx_data[i];
 863
 864                 if (data->m != NULL) {
 865                         m_freem(data->m);
 866                         data->m = NULL;
 867                 }
 868                 if (data->ni != NULL) {
 869                         ieee80211_free_node(data->ni);
 870                         data->ni = NULL;
 871                 }
 872         }
 873 }
 874
 875 static void
 876 rum_beacon_miss(struct ieee80211vap *vap)
 877 {
 878         struct ieee80211com *ic = vap->iv_ic;
 879         struct rum_softc *sc = ic->ic_softc;
 880         struct rum_vap *rvp = RUM_VAP(vap);
 881         int sleep;
 882
 883         RUM_LOCK(sc);
 884         if (sc->sc_sleeping && sc->sc_sleep_end < ticks) {
 885                 DPRINTFN(12, "dropping 'sleeping' bit, "
 886                     "device must be awake now\n");
 887
 888                 sc->sc_sleeping = 0;
 889         }
 890
 891         sleep = sc->sc_sleeping;
 892         RUM_UNLOCK(sc);
 893
 894         if (!sleep)
 895                 rvp->bmiss(vap);
 896 #ifdef USB_DEBUG
 897         else
 898                 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n");
 899 #endif
 900 }
 901
 902 static void
 903 rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype,
 904     const struct ieee80211_rx_stats *rxs,
 905     int rssi, int nf)
 906 {
 907         struct ieee80211vap *vap = ni->ni_vap;
 908         struct rum_softc *sc = vap->iv_ic->ic_softc;
 909         struct rum_vap *rvp = RUM_VAP(vap);
 910
 911         if (vap->iv_state == IEEE80211_S_SLEEP &&
 912             subtype == IEEE80211_FC0_SUBTYPE_BEACON) {
 913                 RUM_LOCK(sc);
 914                 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n",
 915                     !!(sc->last_rx_flags & RT2573_RX_MYBSS),
 916                     sc->last_rx_flags);
 917
 918                 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) ==
 919                     (RT2573_RX_MYBSS | RT2573_RX_BC)) {
 920                         /*
 921                          * Put it to sleep here; in case if there is a data
 922                          * for us, iv_recv_mgmt() will wakeup the device via
 923                          * SLEEP -> RUN state transition.
 924                          */
 925                         rum_set_power_state(sc, 1);
 926                 }
 927                 RUM_UNLOCK(sc);
 928         }
 929
 930         rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf);
 931 }
 932
 933 static int
 934 rum_set_power_state(struct rum_softc *sc, int sleep)
 935 {
 936         usb_error_t uerror;
 937
 938         RUM_LOCK_ASSERT(sc);
 939
 940         DPRINTFN(12, "moving to %s state (sleep time %u)\n",
 941             sleep ? "sleep" : "awake", sc->sc_sleep_time);
 942
 943         uerror = rum_do_mcu_request(sc,
 944             sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP);
 945         if (uerror != USB_ERR_NORMAL_COMPLETION) {
 946                 device_printf(sc->sc_dev,
 947                     "%s: could not change power state: %s\n",
 948                     __func__, usbd_errstr(uerror));
 949                 return (EIO);
 950         }
 951
 952         sc->sc_sleeping = !!sleep;
 953         sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0;
 954
 955         return (0);
 956 }
 957
 958 static int
 959 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
 960 {
 961         struct rum_vap *rvp = RUM_VAP(vap);
 962         struct ieee80211com *ic = vap->iv_ic;
 963         struct rum_softc *sc = ic->ic_softc;
 964         const struct ieee80211_txparam *tp;
 965         enum ieee80211_state ostate;
 966         struct ieee80211_node *ni;
 967         usb_error_t uerror;
 968         int ret = 0;
 969
 970         ostate = vap->iv_state;
 971         DPRINTF("%s -> %s\n",
 972                 ieee80211_state_name[ostate],
 973                 ieee80211_state_name[nstate]);
 974
 975         IEEE80211_UNLOCK(ic);
 976         RUM_LOCK(sc);
 977         usb_callout_stop(&rvp->ratectl_ch);
 978
 979         if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) {
 980                 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
 981                 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
 982
 983                 /*
 984                  * Ignore any errors;
 985                  * any subsequent TX will wakeup it anyway
 986                  */
 987                 (void) rum_set_power_state(sc, 0);
 988         }
 989
 990         switch (nstate) {
 991         case IEEE80211_S_INIT:
 992                 if (ostate == IEEE80211_S_RUN)
 993                         rum_abort_tsf_sync(sc);
 994
 995                 break;
 996
 997         case IEEE80211_S_RUN:
 998                 if (ostate == IEEE80211_S_SLEEP)
 999                         break;          /* already handled */
1000
1001                 ni = ieee80211_ref_node(vap->iv_bss);
1002
1003                 if (vap->iv_opmode != IEEE80211_M_MONITOR) {
1004                         if (ic->ic_bsschan == IEEE80211_CHAN_ANYC ||
1005                             ni->ni_chan == IEEE80211_CHAN_ANYC) {
1006                                 ret = EINVAL;
1007                                 goto run_fail;
1008                         }
1009                         rum_update_slot_cb(sc, NULL, 0);
1010                         rum_enable_mrr(sc);
1011                         rum_set_txpreamble(sc);
1012                         rum_set_basicrates(sc);
1013                         rum_set_maxretry(sc, vap);
1014                         IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid);
1015                         rum_set_bssid(sc, sc->sc_bssid);
1016                 }
1017
1018                 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
1019                     vap->iv_opmode == IEEE80211_M_IBSS) {
1020                         if ((ret = rum_alloc_beacon(sc, vap)) != 0)
1021                                 goto run_fail;
1022                 }
1023
1024                 if (vap->iv_opmode != IEEE80211_M_MONITOR &&
1025                     vap->iv_opmode != IEEE80211_M_AHDEMO) {
1026                         if ((ret = rum_enable_tsf_sync(sc)) != 0)
1027                                 goto run_fail;
1028                 } else
1029                         rum_enable_tsf(sc);
1030
1031                 /* enable automatic rate adaptation */
1032                 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)];
1033                 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE)
1034                         rum_ratectl_start(sc, ni);
1035 run_fail:
1036                 ieee80211_free_node(ni);
1037                 break;
1038         case IEEE80211_S_SLEEP:
1039                 /* Implemented for STA mode only. */
1040                 if (vap->iv_opmode != IEEE80211_M_STA)
1041                         break;
1042
1043                 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
1044                 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1045                         ret = EIO;
1046                         break;
1047                 }
1048
1049                 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT);
1050                 if (uerror != USB_ERR_NORMAL_COMPLETION) {
1051                         ret = EIO;
1052                         break;
1053                 }
1054
1055                 ret = rum_set_power_state(sc, 1);
1056                 if (ret != 0) {
1057                         device_printf(sc->sc_dev,
1058                             "%s: could not move to the SLEEP state: %s\n",
1059                             __func__, usbd_errstr(uerror));
1060                 }
1061                 break;
1062         default:
1063                 break;
1064         }
1065         RUM_UNLOCK(sc);
1066         IEEE80211_LOCK(ic);
1067         return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret);
1068 }
1069
1070 static void
1071 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
1072 {
1073         struct rum_softc *sc = usbd_xfer_softc(xfer);
1074         struct ieee80211vap *vap;
1075         struct rum_tx_data *data;
1076         struct mbuf *m;
1077         struct usb_page_cache *pc;
1078         unsigned int len;
1079         int actlen, sumlen;
1080
1081         usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
1082
1083         switch (USB_GET_STATE(xfer)) {
1084         case USB_ST_TRANSFERRED:
1085                 DPRINTFN(11, "transfer complete, %d bytes\n", actlen);
1086
1087                 /* free resources */
1088                 data = usbd_xfer_get_priv(xfer);
1089                 rum_tx_free(data, 0);
1090                 usbd_xfer_set_priv(xfer, NULL);
1091
1092                 /* FALLTHROUGH */
1093         case USB_ST_SETUP:
1094 tr_setup:
1095                 data = STAILQ_FIRST(&sc->tx_q);
1096                 if (data) {
1097                         STAILQ_REMOVE_HEAD(&sc->tx_q, next);
1098                         m = data->m;
1099
1100                         if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) {
1101                                 DPRINTFN(0, "data overflow, %u bytes\n",
1102                                     m->m_pkthdr.len);
1103                                 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE);
1104                         }
1105                         pc = usbd_xfer_get_frame(xfer, 0);
1106                         usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE);
1107                         usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0,
1108                             m->m_pkthdr.len);
1109
1110                         vap = data->ni->ni_vap;
1111                         if (ieee80211_radiotap_active_vap(vap)) {
1112                                 struct rum_tx_radiotap_header *tap = &sc->sc_txtap;
1113
1114                                 tap->wt_flags = 0;
1115                                 tap->wt_rate = data->rate;
1116                                 tap->wt_antenna = sc->tx_ant;
1117
1118                                 ieee80211_radiotap_tx(vap, m);
1119                         }
1120
1121                         /* align end on a 4-bytes boundary */
1122                         len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3;
1123                         if ((len % 64) == 0)
1124                                 len += 4;
1125
1126                         DPRINTFN(11, "sending frame len=%u xferlen=%u\n",
1127                             m->m_pkthdr.len, len);
1128
1129                         usbd_xfer_set_frame_len(xfer, 0, len);
1130                         usbd_xfer_set_priv(xfer, data);
1131
1132                         usbd_transfer_submit(xfer);
1133                 }
1134                 rum_start(sc);
1135                 break;
1136
1137         default:                        /* Error */
1138                 DPRINTFN(11, "transfer error, %s\n",
1139                     usbd_errstr(error));
1140
1141                 counter_u64_add(sc->sc_ic.ic_oerrors, 1);
1142                 data = usbd_xfer_get_priv(xfer);
1143                 if (data != NULL) {
1144                         rum_tx_free(data, error);
1145                         usbd_xfer_set_priv(xfer, NULL);
1146                 }
1147
1148                 if (error != USB_ERR_CANCELLED) {
1149                         if (error == USB_ERR_TIMEOUT)
1150                                 device_printf(sc->sc_dev, "device timeout\n");
1151
1152                         /*
1153                          * Try to clear stall first, also if other
1154                          * errors occur, hence clearing stall
1155                          * introduces a 50 ms delay:
1156                          */
1157                         usbd_xfer_set_stall(xfer);
1158                         goto tr_setup;
1159                 }
1160                 break;
1161         }
1162 }
1163
1164 static void
1165 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
1166 {
1167         struct rum_softc *sc = usbd_xfer_softc(xfer);
1168         struct ieee80211com *ic = &sc->sc_ic;
1169         struct ieee80211_frame_min *wh;
1170         struct ieee80211_node *ni;
1171         struct epoch_tracker et;
1172         struct mbuf *m = NULL;
1173         struct usb_page_cache *pc;
1174         uint32_t flags;
1175         uint8_t rssi = 0;
1176         int len;
1177
1178         usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
1179
1180         switch (USB_GET_STATE(xfer)) {
1181         case USB_ST_TRANSFERRED:
1182
1183                 DPRINTFN(15, "rx done, actlen=%d\n", len);
1184
1185                 if (len < RT2573_RX_DESC_SIZE) {
1186                         DPRINTF("%s: xfer too short %d\n",
1187                             device_get_nameunit(sc->sc_dev), len);
1188                         counter_u64_add(ic->ic_ierrors, 1);
1189                         goto tr_setup;
1190                 }
1191
1192                 len -= RT2573_RX_DESC_SIZE;
1193                 pc = usbd_xfer_get_frame(xfer, 0);
1194                 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE);
1195
1196                 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi);
1197                 flags = le32toh(sc->sc_rx_desc.flags);
1198                 sc->last_rx_flags = flags;
1199                 if (len < ((flags >> 16) & 0xfff)) {
1200                         DPRINTFN(5, "%s: frame is truncated from %d to %d "
1201                             "bytes\n", device_get_nameunit(sc->sc_dev),
1202                             (flags >> 16) & 0xfff, len);
1203                         counter_u64_add(ic->ic_ierrors, 1);
1204                         goto tr_setup;
1205                 }
1206                 len = (flags >> 16) & 0xfff;
1207                 if (len < sizeof(struct ieee80211_frame_ack)) {
1208                         DPRINTFN(5, "%s: frame too short %d\n",
1209                             device_get_nameunit(sc->sc_dev), len);
1210                         counter_u64_add(ic->ic_ierrors, 1);
1211                         goto tr_setup;
1212                 }
1213                 if (flags & RT2573_RX_CRC_ERROR) {
1214                         /*
1215                          * This should not happen since we did not
1216                          * request to receive those frames when we
1217                          * filled RUM_TXRX_CSR2:
1218                          */
1219                         DPRINTFN(5, "PHY or CRC error\n");
1220                         counter_u64_add(ic->ic_ierrors, 1);
1221                         goto tr_setup;
1222                 }
1223                 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) {
1224                         switch (flags & RT2573_RX_DEC_MASK) {
1225                         case RT2573_RX_IV_ERROR:
1226                                 DPRINTFN(5, "IV/EIV error\n");
1227                                 break;
1228                         case RT2573_RX_MIC_ERROR:
1229                                 DPRINTFN(5, "MIC error\n");
1230                                 break;
1231                         case RT2573_RX_KEY_ERROR:
1232                                 DPRINTFN(5, "Key error\n");
1233                                 break;
1234                         }
1235                         counter_u64_add(ic->ic_ierrors, 1);
1236                         goto tr_setup;
1237                 }
1238
1239                 m = m_get2(len, M_NOWAIT, MT_DATA, M_PKTHDR);
1240                 if (m == NULL) {
1241                         DPRINTF("could not allocate mbuf\n");
1242                         counter_u64_add(ic->ic_ierrors, 1);
1243                         goto tr_setup;
1244                 }
1245                 usbd_copy_out(pc, RT2573_RX_DESC_SIZE,
1246                     mtod(m, uint8_t *), len);
1247
1248                 wh = mtod(m, struct ieee80211_frame_min *);
1249
1250                 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) &&
1251                     (flags & RT2573_RX_CIP_MASK) !=
1252                      RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) {
1253                         wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED;
1254                         m->m_flags |= M_WEP;
1255                 }
1256
1257                 /* finalize mbuf */
1258                 m->m_pkthdr.len = m->m_len = len;
1259
1260                 if (ieee80211_radiotap_active(ic)) {
1261                         struct rum_rx_radiotap_header *tap = &sc->sc_rxtap;
1262
1263                         tap->wr_flags = 0;
1264                         tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate,
1265                             (flags & RT2573_RX_OFDM) ?
1266                             IEEE80211_T_OFDM : IEEE80211_T_CCK);
1267                         rum_get_tsf(sc, &tap->wr_tsf);
1268                         tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi;
1269                         tap->wr_antnoise = RT2573_NOISE_FLOOR;
1270                         tap->wr_antenna = sc->rx_ant;
1271                 }
1272                 /* FALLTHROUGH */
1273         case USB_ST_SETUP:
1274 tr_setup:
1275                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
1276                 usbd_transfer_submit(xfer);
1277
1278                 /*
1279                  * At the end of a USB callback it is always safe to unlock
1280                  * the private mutex of a device! That is why we do the
1281                  * "ieee80211_input" here, and not some lines up!
1282                  */
1283                 RUM_UNLOCK(sc);
1284                 if (m) {
1285                         if (m->m_len >= sizeof(struct ieee80211_frame_min))
1286                                 ni = ieee80211_find_rxnode(ic, wh);
1287                         else
1288                                 ni = NULL;
1289
1290                         NET_EPOCH_ENTER(et);
1291                         if (ni != NULL) {
1292                                 (void) ieee80211_input(ni, m, rssi,
1293                                     RT2573_NOISE_FLOOR);
1294                                 ieee80211_free_node(ni);
1295                         } else
1296                                 (void) ieee80211_input_all(ic, m, rssi,
1297                                     RT2573_NOISE_FLOOR);
1298                         NET_EPOCH_EXIT(et);
1299                 }
1300                 RUM_LOCK(sc);
1301                 rum_start(sc);
1302                 return;
1303
1304         default:                        /* Error */
1305                 if (error != USB_ERR_CANCELLED) {
1306                         /* try to clear stall first */
1307                         usbd_xfer_set_stall(xfer);
1308                         goto tr_setup;
1309                 }
1310                 return;
1311         }
1312 }
1313
1314 static uint8_t
1315 rum_plcp_signal(int rate)
1316 {
1317         switch (rate) {
1318         /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */
1319         case 12:        return 0xb;
1320         case 18:        return 0xf;
1321         case 24:        return 0xa;
1322         case 36:        return 0xe;
1323         case 48:        return 0x9;
1324         case 72:        return 0xd;
1325         case 96:        return 0x8;
1326         case 108:       return 0xc;
1327
1328         /* CCK rates (NB: not IEEE std, device-specific) */
1329         case 2:         return 0x0;
1330         case 4:         return 0x1;
1331         case 11:        return 0x2;
1332         case 22:        return 0x3;
1333         }
1334         return 0xff;            /* XXX unsupported/unknown rate */
1335 }
1336
1337 /*
1338  * Map net80211 cipher to RT2573 security mode.
1339  */
1340 static uint8_t
1341 rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen)
1342 {
1343         switch (cipher) {
1344         case IEEE80211_CIPHER_WEP:
1345                 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104);
1346         case IEEE80211_CIPHER_TKIP:
1347                 return RT2573_MODE_TKIP;
1348         case IEEE80211_CIPHER_AES_CCM:
1349                 return RT2573_MODE_AES_CCMP;
1350         default:
1351                 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher);
1352                 return 0;
1353         }
1354 }
1355
1356 static void
1357 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc,
1358     struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid,
1359     int hdrlen, int len, int rate)
1360 {
1361         struct ieee80211com *ic = &sc->sc_ic;
1362         struct wmeParams *wmep = &sc->wme_params[qid];
1363         uint16_t plcp_length;
1364         int remainder;
1365
1366         flags |= RT2573_TX_VALID;
1367         flags |= len << 16;
1368
1369         if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1370                 const struct ieee80211_cipher *cip = k->wk_cipher;
1371
1372                 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen;
1373
1374                 desc->eiv = 0;          /* for WEP */
1375                 cip->ic_setiv(k, (uint8_t *)&desc->iv);
1376         }
1377
1378         /* setup PLCP fields */
1379         desc->plcp_signal  = rum_plcp_signal(rate);
1380         desc->plcp_service = 4;
1381
1382         len += IEEE80211_CRC_LEN;
1383         if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) {
1384                 flags |= RT2573_TX_OFDM;
1385
1386                 plcp_length = len & 0xfff;
1387                 desc->plcp_length_hi = plcp_length >> 6;
1388                 desc->plcp_length_lo = plcp_length & 0x3f;
1389         } else {
1390                 if (rate == 0)
1391                         rate = 2;       /* avoid division by zero */
1392                 plcp_length = howmany(16 * len, rate);
1393                 if (rate == 22) {
1394                         remainder = (16 * len) % 22;
1395                         if (remainder != 0 && remainder < 7)
1396                                 desc->plcp_service |= RT2573_PLCP_LENGEXT;
1397                 }
1398                 desc->plcp_length_hi = plcp_length >> 8;
1399                 desc->plcp_length_lo = plcp_length & 0xff;
1400
1401                 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE))
1402                         desc->plcp_signal |= 0x08;
1403         }
1404
1405         desc->flags = htole32(flags);
1406         desc->hdrlen = hdrlen;
1407         desc->xflags = xflags;
1408
1409         desc->wme = htole16(RT2573_QID(qid) |
1410             RT2573_AIFSN(wmep->wmep_aifsn) |
1411             RT2573_LOGCWMIN(wmep->wmep_logcwmin) |
1412             RT2573_LOGCWMAX(wmep->wmep_logcwmax));
1413 }
1414
1415 static int
1416 rum_sendprot(struct rum_softc *sc,
1417     const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate)
1418 {
1419         struct ieee80211com *ic = ni->ni_ic;
1420         struct rum_tx_data *data;
1421         struct mbuf *mprot;
1422         int protrate, flags;
1423
1424         RUM_LOCK_ASSERT(sc);
1425
1426         mprot = ieee80211_alloc_prot(ni, m, rate, prot);
1427         if (mprot == NULL) {
1428                 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1);
1429                 device_printf(sc->sc_dev,
1430                     "could not allocate mbuf for protection mode %d\n", prot);
1431                 return (ENOBUFS);
1432         }
1433
1434         protrate = ieee80211_ctl_rate(ic->ic_rt, rate);
1435         flags = 0;
1436         if (prot == IEEE80211_PROT_RTSCTS)
1437                 flags |= RT2573_TX_NEED_ACK;
1438
1439         data = STAILQ_FIRST(&sc->tx_free);
1440         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1441         sc->tx_nfree--;
1442
1443         data->m = mprot;
1444         data->ni = ieee80211_ref_node(ni);
1445         data->rate = protrate;
1446         rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0,
1447             mprot->m_pkthdr.len, protrate);
1448
1449         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1450         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1451
1452         return 0;
1453 }
1454
1455 static uint32_t
1456 rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni,
1457     const struct ieee80211_key *k)
1458 {
1459         struct ieee80211vap *vap = ni->ni_vap;
1460         u_int cipher;
1461         uint32_t flags = 0;
1462         uint8_t mode, pos;
1463
1464         if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
1465                 cipher = k->wk_cipher->ic_cipher;
1466                 pos = k->wk_keyix;
1467                 mode = rum_crypto_mode(sc, cipher, k->wk_keylen);
1468                 if (mode == 0)
1469                         return 0;
1470
1471                 flags |= RT2573_TX_CIP_MODE(mode);
1472
1473                 /* Do not trust GROUP flag */
1474                 if (!(k >= &vap->iv_nw_keys[0] &&
1475                       k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]))
1476                         flags |= RT2573_TX_KEY_PAIR;
1477                 else
1478                         pos += 0 * RT2573_SKEY_MAX;     /* vap id */
1479
1480                 flags |= RT2573_TX_KEY_ID(pos);
1481
1482                 if (cipher == IEEE80211_CIPHER_TKIP)
1483                         flags |= RT2573_TX_TKIPMIC;
1484         }
1485
1486         return flags;
1487 }
1488
1489 static int
1490 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1491 {
1492         const struct ieee80211_txparam *tp = ni->ni_txparms;
1493         struct ieee80211com *ic = &sc->sc_ic;
1494         struct rum_tx_data *data;
1495         struct ieee80211_frame *wh;
1496         struct ieee80211_key *k = NULL;
1497         uint32_t flags = 0;
1498         uint16_t dur;
1499         uint8_t ac, type, xflags = 0;
1500         int hdrlen;
1501
1502         RUM_LOCK_ASSERT(sc);
1503
1504         data = STAILQ_FIRST(&sc->tx_free);
1505         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1506         sc->tx_nfree--;
1507
1508         wh = mtod(m0, struct ieee80211_frame *);
1509         type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1510         hdrlen = ieee80211_anyhdrsize(wh);
1511         ac = M_WME_GETAC(m0);
1512
1513         if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1514                 k = ieee80211_crypto_get_txkey(ni, m0);
1515                 if (k == NULL)
1516                         return (ENOENT);
1517
1518                 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1519                     !k->wk_cipher->ic_encap(k, m0))
1520                         return (ENOBUFS);
1521
1522                 wh = mtod(m0, struct ieee80211_frame *);
1523         }
1524
1525         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1526                 flags |= RT2573_TX_NEED_ACK;
1527
1528                 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate,
1529                     ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1530                 USETW(wh->i_dur, dur);
1531
1532                 /* tell hardware to add timestamp for probe responses */
1533                 if (type == IEEE80211_FC0_TYPE_MGT &&
1534                     (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) ==
1535                     IEEE80211_FC0_SUBTYPE_PROBE_RESP)
1536                         flags |= RT2573_TX_TIMESTAMP;
1537         }
1538
1539         if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1540                 xflags |= RT2573_TX_HWSEQ;
1541
1542         if (k != NULL)
1543                 flags |= rum_tx_crypto_flags(sc, ni, k);
1544
1545         data->m = m0;
1546         data->ni = ni;
1547         data->rate = tp->mgmtrate;
1548
1549         rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1550             m0->m_pkthdr.len, tp->mgmtrate);
1551
1552         DPRINTFN(10, "sending mgt frame len=%d rate=%d\n",
1553             m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate);
1554
1555         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1556         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1557
1558         return (0);
1559 }
1560
1561 static int
1562 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni,
1563     const struct ieee80211_bpf_params *params)
1564 {
1565         struct ieee80211com *ic = ni->ni_ic;
1566         struct ieee80211_frame *wh;
1567         struct rum_tx_data *data;
1568         uint32_t flags;
1569         uint8_t ac, type, xflags = 0;
1570         int rate, error;
1571
1572         RUM_LOCK_ASSERT(sc);
1573
1574         wh = mtod(m0, struct ieee80211_frame *);
1575         type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1576
1577         ac = params->ibp_pri & 3;
1578
1579         rate = params->ibp_rate0;
1580         if (!ieee80211_isratevalid(ic->ic_rt, rate))
1581                 return (EINVAL);
1582
1583         flags = 0;
1584         if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0)
1585                 flags |= RT2573_TX_NEED_ACK;
1586         if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) {
1587                 error = rum_sendprot(sc, m0, ni,
1588                     params->ibp_flags & IEEE80211_BPF_RTS ?
1589                          IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY,
1590                     rate);
1591                 if (error || sc->tx_nfree == 0)
1592                         return (ENOBUFS);
1593
1594                 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1595         }
1596
1597         if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1598                 xflags |= RT2573_TX_HWSEQ;
1599
1600         data = STAILQ_FIRST(&sc->tx_free);
1601         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1602         sc->tx_nfree--;
1603
1604         data->m = m0;
1605         data->ni = ni;
1606         data->rate = rate;
1607
1608         /* XXX need to setup descriptor ourself */
1609         rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0,
1610             m0->m_pkthdr.len, rate);
1611
1612         DPRINTFN(10, "sending raw frame len=%u rate=%u\n",
1613             m0->m_pkthdr.len, rate);
1614
1615         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1616         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1617
1618         return 0;
1619 }
1620
1621 static int
1622 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
1623 {
1624         struct ieee80211vap *vap = ni->ni_vap;
1625         struct ieee80211com *ic = &sc->sc_ic;
1626         struct rum_tx_data *data;
1627         struct ieee80211_frame *wh;
1628         const struct ieee80211_txparam *tp = ni->ni_txparms;
1629         struct ieee80211_key *k = NULL;
1630         uint32_t flags = 0;
1631         uint16_t dur;
1632         uint8_t ac, type, qos, xflags = 0;
1633         int error, hdrlen, rate;
1634
1635         RUM_LOCK_ASSERT(sc);
1636
1637         wh = mtod(m0, struct ieee80211_frame *);
1638         type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
1639         hdrlen = ieee80211_anyhdrsize(wh);
1640
1641         if (IEEE80211_QOS_HAS_SEQ(wh))
1642                 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
1643         else
1644                 qos = 0;
1645         ac = M_WME_GETAC(m0);
1646
1647         if (m0->m_flags & M_EAPOL)
1648                 rate = tp->mgmtrate;
1649         else if (IEEE80211_IS_MULTICAST(wh->i_addr1))
1650                 rate = tp->mcastrate;
1651         else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
1652                 rate = tp->ucastrate;
1653         else {
1654                 (void) ieee80211_ratectl_rate(ni, NULL, 0);
1655                 rate = ni->ni_txrate;
1656         }
1657
1658         if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
1659                 k = ieee80211_crypto_get_txkey(ni, m0);
1660                 if (k == NULL) {
1661                         m_freem(m0);
1662                         return (ENOENT);
1663                 }
1664                 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) &&
1665                     !k->wk_cipher->ic_encap(k, m0)) {
1666                         m_freem(m0);
1667                         return (ENOBUFS);
1668                 }
1669
1670                 /* packet header may have moved, reset our local pointer */
1671                 wh = mtod(m0, struct ieee80211_frame *);
1672         }
1673
1674         if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh))
1675                 xflags |= RT2573_TX_HWSEQ;
1676
1677         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1678                 int prot = IEEE80211_PROT_NONE;
1679                 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold)
1680                         prot = IEEE80211_PROT_RTSCTS;
1681                 else if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
1682                     ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM)
1683                         prot = ic->ic_protmode;
1684                 if (prot != IEEE80211_PROT_NONE) {
1685                         error = rum_sendprot(sc, m0, ni, prot, rate);
1686                         if (error || sc->tx_nfree == 0) {
1687                                 m_freem(m0);
1688                                 return ENOBUFS;
1689                         }
1690                         flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS;
1691                 }
1692         }
1693
1694         if (k != NULL)
1695                 flags |= rum_tx_crypto_flags(sc, ni, k);
1696
1697         data = STAILQ_FIRST(&sc->tx_free);
1698         STAILQ_REMOVE_HEAD(&sc->tx_free, next);
1699         sc->tx_nfree--;
1700
1701         data->m = m0;
1702         data->ni = ni;
1703         data->rate = rate;
1704
1705         if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) {
1706                 /* Unicast frame, check if an ACK is expected. */
1707                 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) !=
1708                     IEEE80211_QOS_ACKPOLICY_NOACK)
1709                         flags |= RT2573_TX_NEED_ACK;
1710
1711                 dur = ieee80211_ack_duration(ic->ic_rt, rate,
1712                     ic->ic_flags & IEEE80211_F_SHPREAMBLE);
1713                 USETW(wh->i_dur, dur);
1714         }
1715
1716         rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen,
1717             m0->m_pkthdr.len, rate);
1718
1719         DPRINTFN(10, "sending frame len=%d rate=%d\n",
1720             m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate);
1721
1722         STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
1723         usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]);
1724
1725         return 0;
1726 }
1727
1728 static int
1729 rum_transmit(struct ieee80211com *ic, struct mbuf *m)
1730 {
1731         struct rum_softc *sc = ic->ic_softc;
1732         int error;
1733
1734         RUM_LOCK(sc);
1735         if (!sc->sc_running) {
1736                 RUM_UNLOCK(sc);
1737                 return (ENXIO);
1738         }
1739         error = mbufq_enqueue(&sc->sc_snd, m);
1740         if (error) {
1741                 RUM_UNLOCK(sc);
1742                 return (error);
1743         }
1744         rum_start(sc);
1745         RUM_UNLOCK(sc);
1746
1747         return (0);
1748 }
1749
1750 static void
1751 rum_start(struct rum_softc *sc)
1752 {
1753         struct ieee80211_node *ni;
1754         struct mbuf *m;
1755
1756         RUM_LOCK_ASSERT(sc);
1757
1758         if (!sc->sc_running)
1759                 return;
1760
1761         while (sc->tx_nfree >= RUM_TX_MINFREE &&
1762             (m = mbufq_dequeue(&sc->sc_snd)) != NULL) {
1763                 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif;
1764                 if (rum_tx_data(sc, m, ni) != 0) {
1765                         if_inc_counter(ni->ni_vap->iv_ifp,
1766                             IFCOUNTER_OERRORS, 1);
1767                         ieee80211_free_node(ni);
1768                         break;
1769                 }
1770         }
1771 }
1772
1773 static void
1774 rum_parent(struct ieee80211com *ic)
1775 {
1776         struct rum_softc *sc = ic->ic_softc;
1777         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
1778
1779         RUM_LOCK(sc);
1780         if (sc->sc_detached) {
1781                 RUM_UNLOCK(sc);
1782                 return;
1783         }
1784         RUM_UNLOCK(sc);
1785
1786         if (ic->ic_nrunning > 0) {
1787                 if (rum_init(sc) == 0)
1788                         ieee80211_start_all(ic);
1789                 else
1790                         ieee80211_stop(vap);
1791         } else
1792                 rum_stop(sc);
1793 }
1794
1795 static void
1796 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len)
1797 {
1798         struct usb_device_request req;
1799         usb_error_t error;
1800
1801         req.bmRequestType = UT_READ_VENDOR_DEVICE;
1802         req.bRequest = RT2573_READ_EEPROM;
1803         USETW(req.wValue, 0);
1804         USETW(req.wIndex, addr);
1805         USETW(req.wLength, len);
1806
1807         error = rum_do_request(sc, &req, buf);
1808         if (error != 0) {
1809                 device_printf(sc->sc_dev, "could not read EEPROM: %s\n",
1810                     usbd_errstr(error));
1811         }
1812 }
1813
1814 static uint32_t
1815 rum_read(struct rum_softc *sc, uint16_t reg)
1816 {
1817         uint32_t val;
1818
1819         rum_read_multi(sc, reg, &val, sizeof val);
1820
1821         return le32toh(val);
1822 }
1823
1824 static void
1825 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len)
1826 {
1827         struct usb_device_request req;
1828         usb_error_t error;
1829
1830         req.bmRequestType = UT_READ_VENDOR_DEVICE;
1831         req.bRequest = RT2573_READ_MULTI_MAC;
1832         USETW(req.wValue, 0);
1833         USETW(req.wIndex, reg);
1834         USETW(req.wLength, len);
1835
1836         error = rum_do_request(sc, &req, buf);
1837         if (error != 0) {
1838                 device_printf(sc->sc_dev,
1839                     "could not multi read MAC register: %s\n",
1840                     usbd_errstr(error));
1841         }
1842 }
1843
1844 static usb_error_t
1845 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val)
1846 {
1847         uint32_t tmp = htole32(val);
1848
1849         return (rum_write_multi(sc, reg, &tmp, sizeof tmp));
1850 }
1851
1852 static usb_error_t
1853 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len)
1854 {
1855         struct usb_device_request req;
1856         usb_error_t error;
1857         size_t offset;
1858
1859         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
1860         req.bRequest = RT2573_WRITE_MULTI_MAC;
1861         USETW(req.wValue, 0);
1862
1863         /* write at most 64 bytes at a time */
1864         for (offset = 0; offset < len; offset += 64) {
1865                 USETW(req.wIndex, reg + offset);
1866                 USETW(req.wLength, MIN(len - offset, 64));
1867
1868                 error = rum_do_request(sc, &req, (char *)buf + offset);
1869                 if (error != 0) {
1870                         device_printf(sc->sc_dev,
1871                             "could not multi write MAC register: %s\n",
1872                             usbd_errstr(error));
1873                         return (error);
1874                 }
1875         }
1876
1877         return (USB_ERR_NORMAL_COMPLETION);
1878 }
1879
1880 static usb_error_t
1881 rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1882 {
1883         return (rum_write(sc, reg, rum_read(sc, reg) | mask));
1884 }
1885
1886 static usb_error_t
1887 rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask)
1888 {
1889         return (rum_write(sc, reg, rum_read(sc, reg) & ~mask));
1890 }
1891
1892 static usb_error_t
1893 rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset)
1894 {
1895         return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set));
1896 }
1897
1898 static int
1899 rum_bbp_busy(struct rum_softc *sc)
1900 {
1901         int ntries;
1902
1903         for (ntries = 0; ntries < 100; ntries++) {
1904                 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY))
1905                         break;
1906                 if (rum_pause(sc, hz / 100))
1907                         break;
1908         }
1909         if (ntries == 100)
1910                 return (ETIMEDOUT);
1911
1912         return (0);
1913 }
1914
1915 static void
1916 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val)
1917 {
1918         uint32_t tmp;
1919
1920         DPRINTFN(2, "reg=0x%08x\n", reg);
1921
1922         if (rum_bbp_busy(sc) != 0) {
1923                 device_printf(sc->sc_dev, "could not write to BBP\n");
1924                 return;
1925         }
1926
1927         tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val;
1928         rum_write(sc, RT2573_PHY_CSR3, tmp);
1929 }
1930
1931 static uint8_t
1932 rum_bbp_read(struct rum_softc *sc, uint8_t reg)
1933 {
1934         uint32_t val;
1935         int ntries;
1936
1937         DPRINTFN(2, "reg=0x%08x\n", reg);
1938
1939         if (rum_bbp_busy(sc) != 0) {
1940                 device_printf(sc->sc_dev, "could not read BBP\n");
1941                 return 0;
1942         }
1943
1944         val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8;
1945         rum_write(sc, RT2573_PHY_CSR3, val);
1946
1947         for (ntries = 0; ntries < 100; ntries++) {
1948                 val = rum_read(sc, RT2573_PHY_CSR3);
1949                 if (!(val & RT2573_BBP_BUSY))
1950                         return val & 0xff;
1951                 if (rum_pause(sc, hz / 100))
1952                         break;
1953         }
1954
1955         device_printf(sc->sc_dev, "could not read BBP\n");
1956         return 0;
1957 }
1958
1959 static void
1960 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val)
1961 {
1962         uint32_t tmp;
1963         int ntries;
1964
1965         for (ntries = 0; ntries < 100; ntries++) {
1966                 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY))
1967                         break;
1968                 if (rum_pause(sc, hz / 100))
1969                         break;
1970         }
1971         if (ntries == 100) {
1972                 device_printf(sc->sc_dev, "could not write to RF\n");
1973                 return;
1974         }
1975
1976         tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 |
1977             (reg & 3);
1978         rum_write(sc, RT2573_PHY_CSR4, tmp);
1979
1980         /* remember last written value in sc */
1981         sc->rf_regs[reg] = val;
1982
1983         DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff);
1984 }
1985
1986 static void
1987 rum_select_antenna(struct rum_softc *sc)
1988 {
1989         uint8_t bbp4, bbp77;
1990         uint32_t tmp;
1991
1992         bbp4  = rum_bbp_read(sc, 4);
1993         bbp77 = rum_bbp_read(sc, 77);
1994
1995         /* TBD */
1996
1997         /* make sure Rx is disabled before switching antenna */
1998         tmp = rum_read(sc, RT2573_TXRX_CSR0);
1999         rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX);
2000
2001         rum_bbp_write(sc,  4, bbp4);
2002         rum_bbp_write(sc, 77, bbp77);
2003
2004         rum_write(sc, RT2573_TXRX_CSR0, tmp);
2005 }
2006
2007 /*
2008  * Enable multi-rate retries for frames sent at OFDM rates.
2009  * In 802.11b/g mode, allow fallback to CCK rates.
2010  */
2011 static void
2012 rum_enable_mrr(struct rum_softc *sc)
2013 {
2014         struct ieee80211com *ic = &sc->sc_ic;
2015
2016         if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2017                 rum_setbits(sc, RT2573_TXRX_CSR4,
2018                     RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK);
2019         } else {
2020                 rum_modbits(sc, RT2573_TXRX_CSR4,
2021                     RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK);
2022         }
2023 }
2024
2025 static void
2026 rum_set_txpreamble(struct rum_softc *sc)
2027 {
2028         struct ieee80211com *ic = &sc->sc_ic;
2029
2030         if (ic->ic_flags & IEEE80211_F_SHPREAMBLE)
2031                 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
2032         else
2033                 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE);
2034 }
2035
2036 static void
2037 rum_set_basicrates(struct rum_softc *sc)
2038 {
2039         struct ieee80211com *ic = &sc->sc_ic;
2040
2041         /* update basic rate set */
2042         if (ic->ic_curmode == IEEE80211_MODE_11B) {
2043                 /* 11b basic rates: 1, 2Mbps */
2044                 rum_write(sc, RT2573_TXRX_CSR5, 0x3);
2045         } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) {
2046                 /* 11a basic rates: 6, 12, 24Mbps */
2047                 rum_write(sc, RT2573_TXRX_CSR5, 0x150);
2048         } else {
2049                 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */
2050                 rum_write(sc, RT2573_TXRX_CSR5, 0xf);
2051         }
2052 }
2053
2054 /*
2055  * Reprogram MAC/BBP to switch to a new band.  Values taken from the reference
2056  * driver.
2057  */
2058 static void
2059 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c)
2060 {
2061         uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104;
2062
2063         /* update all BBP registers that depend on the band */
2064         bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c;
2065         bbp35 = 0x50; bbp97 = 0x48; bbp98  = 0x48;
2066         if (IEEE80211_IS_CHAN_5GHZ(c)) {
2067                 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c;
2068                 bbp35 += 0x10; bbp97 += 0x10; bbp98  += 0x10;
2069         }
2070         if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2071             (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2072                 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10;
2073         }
2074
2075         sc->bbp17 = bbp17;
2076         rum_bbp_write(sc,  17, bbp17);
2077         rum_bbp_write(sc,  96, bbp96);
2078         rum_bbp_write(sc, 104, bbp104);
2079
2080         if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) ||
2081             (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) {
2082                 rum_bbp_write(sc, 75, 0x80);
2083                 rum_bbp_write(sc, 86, 0x80);
2084                 rum_bbp_write(sc, 88, 0x80);
2085         }
2086
2087         rum_bbp_write(sc, 35, bbp35);
2088         rum_bbp_write(sc, 97, bbp97);
2089         rum_bbp_write(sc, 98, bbp98);
2090
2091         if (IEEE80211_IS_CHAN_2GHZ(c)) {
2092                 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ,
2093                     RT2573_PA_PE_5GHZ);
2094         } else {
2095                 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ,
2096                     RT2573_PA_PE_2GHZ);
2097         }
2098 }
2099
2100 static void
2101 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c)
2102 {
2103         struct ieee80211com *ic = &sc->sc_ic;
2104         const struct rfprog *rfprog;
2105         uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT;
2106         int8_t power;
2107         int i, chan;
2108
2109         chan = ieee80211_chan2ieee(ic, c);
2110         if (chan == 0 || chan == IEEE80211_CHAN_ANY)
2111                 return;
2112
2113         /* select the appropriate RF settings based on what EEPROM says */
2114         rfprog = (sc->rf_rev == RT2573_RF_5225 ||
2115                   sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226;
2116
2117         /* find the settings for this channel (we know it exists) */
2118         for (i = 0; rfprog[i].chan != chan; i++);
2119
2120         power = sc->txpow[i];
2121         if (power < 0) {
2122                 bbp94 += power;
2123                 power = 0;
2124         } else if (power > 31) {
2125                 bbp94 += power - 31;
2126                 power = 31;
2127         }
2128
2129         /*
2130          * If we are switching from the 2GHz band to the 5GHz band or
2131          * vice-versa, BBP registers need to be reprogrammed.
2132          */
2133         if (c->ic_flags != ic->ic_curchan->ic_flags) {
2134                 rum_select_band(sc, c);
2135                 rum_select_antenna(sc);
2136         }
2137         ic->ic_curchan = c;
2138
2139         rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2140         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2141         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2142         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2143
2144         rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2145         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2146         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1);
2147         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2148
2149         rum_rf_write(sc, RT2573_RF1, rfprog[i].r1);
2150         rum_rf_write(sc, RT2573_RF2, rfprog[i].r2);
2151         rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7);
2152         rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10);
2153
2154         rum_pause(sc, hz / 100);
2155
2156         /* enable smart mode for MIMO-capable RFs */
2157         bbp3 = rum_bbp_read(sc, 3);
2158
2159         bbp3 &= ~RT2573_SMART_MODE;
2160         if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527)
2161                 bbp3 |= RT2573_SMART_MODE;
2162
2163         rum_bbp_write(sc, 3, bbp3);
2164
2165         if (bbp94 != RT2573_BBPR94_DEFAULT)
2166                 rum_bbp_write(sc, 94, bbp94);
2167
2168         /* give the chip some extra time to do the switchover */
2169         rum_pause(sc, hz / 100);
2170 }
2171
2172 static void
2173 rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap)
2174 {
2175         struct ieee80211_node *ni = vap->iv_bss;
2176         const struct ieee80211_txparam *tp = ni->ni_txparms;
2177         struct rum_vap *rvp = RUM_VAP(vap);
2178
2179         rvp->maxretry = MIN(tp->maxretry, 0xf);
2180
2181         rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) |
2182             RT2573_LONG_RETRY(rvp->maxretry),
2183             RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK);
2184 }
2185
2186 /*
2187  * Enable TSF synchronization and tell h/w to start sending beacons for IBSS
2188  * and HostAP operating modes.
2189  */
2190 static int
2191 rum_enable_tsf_sync(struct rum_softc *sc)
2192 {
2193         struct ieee80211com *ic = &sc->sc_ic;
2194         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2195         uint32_t tmp;
2196         uint16_t bintval;
2197
2198         if (vap->iv_opmode != IEEE80211_M_STA) {
2199                 /*
2200                  * Change default 16ms TBTT adjustment to 8ms.
2201                  * Must be done before enabling beacon generation.
2202                  */
2203                 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0)
2204                         return EIO;
2205         }
2206
2207         tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000;
2208
2209         /* set beacon interval (in 1/16ms unit) */
2210         bintval = vap->iv_bss->ni_intval;
2211         tmp |= bintval * 16;
2212         tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN;
2213
2214         switch (vap->iv_opmode) {
2215         case IEEE80211_M_STA:
2216                 /*
2217                  * Local TSF is always updated with remote TSF on beacon
2218                  * reception.
2219                  */
2220                 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA);
2221                 break;
2222         case IEEE80211_M_IBSS:
2223                 /*
2224                  * Local TSF is updated with remote TSF on beacon reception
2225                  * only if the remote TSF is greater than local TSF.
2226                  */
2227                 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS);
2228                 tmp |= RT2573_BCN_TX_EN;
2229                 break;
2230         case IEEE80211_M_HOSTAP:
2231                 /* SYNC with nobody */
2232                 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP);
2233                 tmp |= RT2573_BCN_TX_EN;
2234                 break;
2235         default:
2236                 device_printf(sc->sc_dev,
2237                     "Enabling TSF failed. undefined opmode %d\n",
2238                     vap->iv_opmode);
2239                 return EINVAL;
2240         }
2241
2242         if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0)
2243                 return EIO;
2244
2245         /* refresh current sleep time */
2246         return (rum_set_sleep_time(sc, bintval));
2247 }
2248
2249 static void
2250 rum_enable_tsf(struct rum_softc *sc)
2251 {
2252         rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN |
2253             RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff);
2254 }
2255
2256 static void
2257 rum_abort_tsf_sync(struct rum_softc *sc)
2258 {
2259         rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff);
2260 }
2261
2262 static void
2263 rum_get_tsf(struct rum_softc *sc, uint64_t *buf)
2264 {
2265         rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf));
2266 }
2267
2268 static void
2269 rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id)
2270 {
2271         struct ieee80211com *ic = &sc->sc_ic;
2272         uint8_t slottime;
2273
2274         slottime = IEEE80211_GET_SLOTTIME(ic);
2275
2276         rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff);
2277
2278         DPRINTF("setting slot time to %uus\n", slottime);
2279 }
2280
2281 static void
2282 rum_update_slot(struct ieee80211com *ic)
2283 {
2284         rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb);
2285 }
2286
2287 static int
2288 rum_wme_update(struct ieee80211com *ic)
2289 {
2290         struct chanAccParams chp;
2291         const struct wmeParams *chanp;
2292         struct rum_softc *sc = ic->ic_softc;
2293         int error = 0;
2294
2295         ieee80211_wme_ic_getparams(ic, &chp);
2296         chanp = chp.cap_wmeParams;
2297
2298         RUM_LOCK(sc);
2299         error = rum_write(sc, RT2573_AIFSN_CSR,
2300             chanp[WME_AC_VO].wmep_aifsn  << 12 |
2301             chanp[WME_AC_VI].wmep_aifsn  <<  8 |
2302             chanp[WME_AC_BK].wmep_aifsn  <<  4 |
2303             chanp[WME_AC_BE].wmep_aifsn);
2304         if (error)
2305                 goto print_err;
2306         error = rum_write(sc, RT2573_CWMIN_CSR,
2307             chanp[WME_AC_VO].wmep_logcwmin << 12 |
2308             chanp[WME_AC_VI].wmep_logcwmin <<  8 |
2309             chanp[WME_AC_BK].wmep_logcwmin <<  4 |
2310             chanp[WME_AC_BE].wmep_logcwmin);
2311         if (error)
2312                 goto print_err;
2313         error = rum_write(sc, RT2573_CWMAX_CSR,
2314             chanp[WME_AC_VO].wmep_logcwmax << 12 |
2315             chanp[WME_AC_VI].wmep_logcwmax <<  8 |
2316             chanp[WME_AC_BK].wmep_logcwmax <<  4 |
2317             chanp[WME_AC_BE].wmep_logcwmax);
2318         if (error)
2319                 goto print_err;
2320         error = rum_write(sc, RT2573_TXOP01_CSR,
2321             chanp[WME_AC_BK].wmep_txopLimit << 16 |
2322             chanp[WME_AC_BE].wmep_txopLimit);
2323         if (error)
2324                 goto print_err;
2325         error = rum_write(sc, RT2573_TXOP23_CSR,
2326             chanp[WME_AC_VO].wmep_txopLimit << 16 |
2327             chanp[WME_AC_VI].wmep_txopLimit);
2328         if (error)
2329                 goto print_err;
2330
2331         memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC);
2332
2333 print_err:
2334         RUM_UNLOCK(sc);
2335         if (error != 0) {
2336                 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n",
2337                     __func__, error);
2338         }
2339
2340         return (error);
2341 }
2342
2343 static void
2344 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid)
2345 {
2346
2347         rum_write(sc, RT2573_MAC_CSR4,
2348             bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24);
2349         rum_write(sc, RT2573_MAC_CSR5,
2350             bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1));
2351 }
2352
2353 static void
2354 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr)
2355 {
2356
2357         rum_write(sc, RT2573_MAC_CSR2,
2358             addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24);
2359         rum_write(sc, RT2573_MAC_CSR3,
2360             addr[4] | addr[5] << 8 | 0xff << 16);
2361 }
2362
2363 static void
2364 rum_setpromisc(struct rum_softc *sc)
2365 {
2366         struct ieee80211com *ic = &sc->sc_ic;
2367
2368         if (ic->ic_promisc == 0)
2369                 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2370         else
2371                 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME);
2372
2373         DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ?
2374             "entering" : "leaving");
2375 }
2376
2377 static void
2378 rum_update_promisc(struct ieee80211com *ic)
2379 {
2380         struct rum_softc *sc = ic->ic_softc;
2381
2382         RUM_LOCK(sc);
2383         if (sc->sc_running)
2384                 rum_setpromisc(sc);
2385         RUM_UNLOCK(sc);
2386 }
2387
2388 static void
2389 rum_update_mcast(struct ieee80211com *ic)
2390 {
2391         /* Ignore. */
2392 }
2393
2394 static const char *
2395 rum_get_rf(int rev)
2396 {
2397         switch (rev) {
2398         case RT2573_RF_2527:    return "RT2527 (MIMO XR)";
2399         case RT2573_RF_2528:    return "RT2528";
2400         case RT2573_RF_5225:    return "RT5225 (MIMO XR)";
2401         case RT2573_RF_5226:    return "RT5226";
2402         default:                return "unknown";
2403         }
2404 }
2405
2406 static void
2407 rum_read_eeprom(struct rum_softc *sc)
2408 {
2409         uint16_t val;
2410 #ifdef RUM_DEBUG
2411         int i;
2412 #endif
2413
2414         /* read MAC address */
2415         rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6);
2416
2417         rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2);
2418         val = le16toh(val);
2419         sc->rf_rev =   (val >> 11) & 0x1f;
2420         sc->hw_radio = (val >> 10) & 0x1;
2421         sc->rx_ant =   (val >> 4)  & 0x3;
2422         sc->tx_ant =   (val >> 2)  & 0x3;
2423         sc->nb_ant =   val & 0x3;
2424
2425         DPRINTF("RF revision=%d\n", sc->rf_rev);
2426
2427         rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2);
2428         val = le16toh(val);
2429         sc->ext_5ghz_lna = (val >> 6) & 0x1;
2430         sc->ext_2ghz_lna = (val >> 4) & 0x1;
2431
2432         DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n",
2433             sc->ext_2ghz_lna, sc->ext_5ghz_lna);
2434
2435         rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2);
2436         val = le16toh(val);
2437         if ((val & 0xff) != 0xff)
2438                 sc->rssi_2ghz_corr = (int8_t)(val & 0xff);      /* signed */
2439
2440         /* Only [-10, 10] is valid */
2441         if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10)
2442                 sc->rssi_2ghz_corr = 0;
2443
2444         rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2);
2445         val = le16toh(val);
2446         if ((val & 0xff) != 0xff)
2447                 sc->rssi_5ghz_corr = (int8_t)(val & 0xff);      /* signed */
2448
2449         /* Only [-10, 10] is valid */
2450         if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10)
2451                 sc->rssi_5ghz_corr = 0;
2452
2453         if (sc->ext_2ghz_lna)
2454                 sc->rssi_2ghz_corr -= 14;
2455         if (sc->ext_5ghz_lna)
2456                 sc->rssi_5ghz_corr -= 14;
2457
2458         DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n",
2459             sc->rssi_2ghz_corr, sc->rssi_5ghz_corr);
2460
2461         rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2);
2462         val = le16toh(val);
2463         if ((val & 0xff) != 0xff)
2464                 sc->rffreq = val & 0xff;
2465
2466         DPRINTF("RF freq=%d\n", sc->rffreq);
2467
2468         /* read Tx power for all a/b/g channels */
2469         rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14);
2470         /* XXX default Tx power for 802.11a channels */
2471         memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14);
2472 #ifdef RUM_DEBUG
2473         for (i = 0; i < 14; i++)
2474                 DPRINTF("Channel=%d Tx power=%d\n", i + 1,  sc->txpow[i]);
2475 #endif
2476
2477         /* read default values for BBP registers */
2478         rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16);
2479 #ifdef RUM_DEBUG
2480         for (i = 0; i < 14; i++) {
2481                 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2482                         continue;
2483                 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg,
2484                     sc->bbp_prom[i].val);
2485         }
2486 #endif
2487 }
2488
2489 static int
2490 rum_bbp_wakeup(struct rum_softc *sc)
2491 {
2492         unsigned int ntries;
2493
2494         for (ntries = 0; ntries < 100; ntries++) {
2495                 if (rum_read(sc, RT2573_MAC_CSR12) & 8)
2496                         break;
2497                 rum_write(sc, RT2573_MAC_CSR12, 4);     /* force wakeup */
2498                 if (rum_pause(sc, hz / 100))
2499                         break;
2500         }
2501         if (ntries == 100) {
2502                 device_printf(sc->sc_dev,
2503                     "timeout waiting for BBP/RF to wakeup\n");
2504                 return (ETIMEDOUT);
2505         }
2506
2507         return (0);
2508 }
2509
2510 static int
2511 rum_bbp_init(struct rum_softc *sc)
2512 {
2513         int i, ntries;
2514
2515         /* wait for BBP to be ready */
2516         for (ntries = 0; ntries < 100; ntries++) {
2517                 const uint8_t val = rum_bbp_read(sc, 0);
2518                 if (val != 0 && val != 0xff)
2519                         break;
2520                 if (rum_pause(sc, hz / 100))
2521                         break;
2522         }
2523         if (ntries == 100) {
2524                 device_printf(sc->sc_dev, "timeout waiting for BBP\n");
2525                 return EIO;
2526         }
2527
2528         /* initialize BBP registers to default values */
2529         for (i = 0; i < nitems(rum_def_bbp); i++)
2530                 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val);
2531
2532         /* write vendor-specific BBP values (from EEPROM) */
2533         for (i = 0; i < 16; i++) {
2534                 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff)
2535                         continue;
2536                 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val);
2537         }
2538
2539         return 0;
2540 }
2541
2542 static void
2543 rum_clr_shkey_regs(struct rum_softc *sc)
2544 {
2545         rum_write(sc, RT2573_SEC_CSR0, 0);
2546         rum_write(sc, RT2573_SEC_CSR1, 0);
2547         rum_write(sc, RT2573_SEC_CSR5, 0);
2548 }
2549
2550 static int
2551 rum_init(struct rum_softc *sc)
2552 {
2553         struct ieee80211com *ic = &sc->sc_ic;
2554         struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
2555         uint32_t tmp;
2556         int i, ret;
2557
2558         RUM_LOCK(sc);
2559         if (sc->sc_running) {
2560                 ret = 0;
2561                 goto end;
2562         }
2563
2564         /* initialize MAC registers to default values */
2565         for (i = 0; i < nitems(rum_def_mac); i++)
2566                 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val);
2567
2568         /* reset some WME parameters to default values */
2569         sc->wme_params[0].wmep_aifsn = 2;
2570         sc->wme_params[0].wmep_logcwmin = 4;
2571         sc->wme_params[0].wmep_logcwmax = 10;
2572
2573         /* set host ready */
2574         rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2575         rum_write(sc, RT2573_MAC_CSR1, 0);
2576
2577         /* wait for BBP/RF to wakeup */
2578         if ((ret = rum_bbp_wakeup(sc)) != 0)
2579                 goto end;
2580
2581         if ((ret = rum_bbp_init(sc)) != 0)
2582                 goto end;
2583
2584         /* select default channel */
2585         rum_select_band(sc, ic->ic_curchan);
2586         rum_select_antenna(sc);
2587         rum_set_chan(sc, ic->ic_curchan);
2588
2589         /* clear STA registers */
2590         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
2591
2592         /* clear security registers (if required) */
2593         if (sc->sc_clr_shkeys == 0) {
2594                 rum_clr_shkey_regs(sc);
2595                 sc->sc_clr_shkeys = 1;
2596         }
2597
2598         rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr);
2599
2600         /* initialize ASIC */
2601         rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY);
2602
2603         /*
2604          * Allocate Tx and Rx xfer queues.
2605          */
2606         rum_setup_tx_list(sc);
2607
2608         /* update Rx filter */
2609         tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff;
2610
2611         tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR;
2612         if (ic->ic_opmode != IEEE80211_M_MONITOR) {
2613                 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR |
2614                        RT2573_DROP_ACKCTS;
2615                 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
2616                         tmp |= RT2573_DROP_TODS;
2617                 if (ic->ic_promisc == 0)
2618                         tmp |= RT2573_DROP_NOT_TO_ME;
2619         }
2620         rum_write(sc, RT2573_TXRX_CSR0, tmp);
2621
2622         sc->sc_running = 1;
2623         usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]);
2624         usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]);
2625
2626 end:    RUM_UNLOCK(sc);
2627
2628         if (ret != 0)
2629                 rum_stop(sc);
2630
2631         return ret;
2632 }
2633
2634 static void
2635 rum_stop(struct rum_softc *sc)
2636 {
2637
2638         RUM_LOCK(sc);
2639         if (!sc->sc_running) {
2640                 RUM_UNLOCK(sc);
2641                 return;
2642         }
2643         sc->sc_running = 0;
2644         RUM_UNLOCK(sc);
2645
2646         /*
2647          * Drain the USB transfers, if not already drained:
2648          */
2649         usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]);
2650         usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]);
2651
2652         RUM_LOCK(sc);
2653         rum_unsetup_tx_list(sc);
2654
2655         /* disable Rx */
2656         rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX);
2657
2658         /* reset ASIC */
2659         rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP);
2660         rum_write(sc, RT2573_MAC_CSR1, 0);
2661         RUM_UNLOCK(sc);
2662 }
2663
2664 static void
2665 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size)
2666 {
2667         uint16_t reg = RT2573_MCU_CODE_BASE;
2668         usb_error_t err;
2669
2670         /* copy firmware image into NIC */
2671         for (; size >= 4; reg += 4, ucode += 4, size -= 4) {
2672                 err = rum_write(sc, reg, UGETDW(ucode));
2673                 if (err) {
2674                         /* firmware already loaded ? */
2675                         device_printf(sc->sc_dev, "Firmware load "
2676                             "failure! (ignored)\n");
2677                         break;
2678                 }
2679         }
2680
2681         err = rum_do_mcu_request(sc, RT2573_MCU_RUN);
2682         if (err != USB_ERR_NORMAL_COMPLETION) {
2683                 device_printf(sc->sc_dev, "could not run firmware: %s\n",
2684                     usbd_errstr(err));
2685         }
2686
2687         /* give the chip some time to boot */
2688         rum_pause(sc, hz / 8);
2689 }
2690
2691 static int
2692 rum_set_sleep_time(struct rum_softc *sc, uint16_t bintval)
2693 {
2694         struct ieee80211com *ic = &sc->sc_ic;
2695         usb_error_t uerror;
2696         int exp, delay;
2697
2698         RUM_LOCK_ASSERT(sc);
2699
2700         exp = ic->ic_lintval / bintval;
2701         delay = ic->ic_lintval % bintval;
2702
2703         if (exp > RT2573_TBCN_EXP_MAX)
2704                 exp = RT2573_TBCN_EXP_MAX;
2705         if (delay > RT2573_TBCN_DELAY_MAX)
2706                 delay = RT2573_TBCN_DELAY_MAX;
2707
2708         uerror = rum_modbits(sc, RT2573_MAC_CSR11,
2709             RT2573_TBCN_EXP(exp) |
2710             RT2573_TBCN_DELAY(delay),
2711             RT2573_TBCN_EXP(RT2573_TBCN_EXP_MAX) |
2712             RT2573_TBCN_DELAY(RT2573_TBCN_DELAY_MAX));
2713
2714         if (uerror != USB_ERR_NORMAL_COMPLETION)
2715                 return (EIO);
2716
2717         sc->sc_sleep_time = IEEE80211_TU_TO_TICKS(exp * bintval + delay);
2718
2719         return (0);
2720 }
2721
2722 static int
2723 rum_reset(struct ieee80211vap *vap, u_long cmd)
2724 {
2725         struct ieee80211com *ic = vap->iv_ic;
2726         struct ieee80211_node *ni;
2727         struct rum_softc *sc = ic->ic_softc;
2728         int error;
2729
2730         switch (cmd) {
2731         case IEEE80211_IOC_POWERSAVE:
2732         case IEEE80211_IOC_PROTMODE:
2733         case IEEE80211_IOC_RTSTHRESHOLD:
2734                 error = 0;
2735                 break;
2736         case IEEE80211_IOC_POWERSAVESLEEP:
2737                 ni = ieee80211_ref_node(vap->iv_bss);
2738
2739                 RUM_LOCK(sc);
2740                 error = rum_set_sleep_time(sc, ni->ni_intval);
2741                 if (vap->iv_state == IEEE80211_S_SLEEP) {
2742                         /* Use new values for wakeup timer. */
2743                         rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2744                         rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP);
2745                 }
2746                 /* XXX send reassoc */
2747                 RUM_UNLOCK(sc);
2748
2749                 ieee80211_free_node(ni);
2750                 break;
2751         default:
2752                 error = ENETRESET;
2753                 break;
2754         }
2755
2756         return (error);
2757 }
2758
2759 static int
2760 rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2761 {
2762         struct ieee80211com *ic = vap->iv_ic;
2763         struct rum_vap *rvp = RUM_VAP(vap);
2764         struct mbuf *m = rvp->bcn_mbuf;
2765         const struct ieee80211_txparam *tp;
2766         struct rum_tx_desc desc;
2767
2768         RUM_LOCK_ASSERT(sc);
2769
2770         if (m == NULL)
2771                 return EINVAL;
2772         if (ic->ic_bsschan == IEEE80211_CHAN_ANYC)
2773                 return EINVAL;
2774
2775         tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)];
2776         rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP,
2777             RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate);
2778
2779         /* copy the Tx descriptor into NIC memory */
2780         if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc,
2781             RT2573_TX_DESC_SIZE) != 0)
2782                 return EIO;
2783
2784         /* copy beacon header and payload into NIC memory */
2785         if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE,
2786             mtod(m, uint8_t *), m->m_pkthdr.len) != 0)
2787                 return EIO;
2788
2789         return 0;
2790 }
2791
2792 static int
2793 rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap)
2794 {
2795         struct rum_vap *rvp = RUM_VAP(vap);
2796         struct ieee80211_node *ni = vap->iv_bss;
2797         struct mbuf *m;
2798
2799         if (ni->ni_chan == IEEE80211_CHAN_ANYC)
2800                 return EINVAL;
2801
2802         m = ieee80211_beacon_alloc(ni);
2803         if (m == NULL)
2804                 return ENOMEM;
2805
2806         if (rvp->bcn_mbuf != NULL)
2807                 m_freem(rvp->bcn_mbuf);
2808
2809         rvp->bcn_mbuf = m;
2810
2811         return (rum_set_beacon(sc, vap));
2812 }
2813
2814 static void
2815 rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data,
2816     uint8_t rvp_id)
2817 {
2818         struct ieee80211vap *vap = data->vap;
2819
2820         rum_set_beacon(sc, vap);
2821 }
2822
2823 static void
2824 rum_update_beacon(struct ieee80211vap *vap, int item)
2825 {
2826         struct ieee80211com *ic = vap->iv_ic;
2827         struct rum_softc *sc = ic->ic_softc;
2828         struct rum_vap *rvp = RUM_VAP(vap);
2829         struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;
2830         struct ieee80211_node *ni = vap->iv_bss;
2831         struct mbuf *m = rvp->bcn_mbuf;
2832         int mcast = 0;
2833
2834         RUM_LOCK(sc);
2835         if (m == NULL) {
2836                 m = ieee80211_beacon_alloc(ni);
2837                 if (m == NULL) {
2838                         device_printf(sc->sc_dev,
2839                             "%s: could not allocate beacon frame\n", __func__);
2840                         RUM_UNLOCK(sc);
2841                         return;
2842                 }
2843                 rvp->bcn_mbuf = m;
2844         }
2845
2846         switch (item) {
2847         case IEEE80211_BEACON_ERP:
2848                 rum_update_slot(ic);
2849                 break;
2850         case IEEE80211_BEACON_TIM:
2851                 mcast = 1;      /*TODO*/
2852                 break;
2853         default:
2854                 break;
2855         }
2856         RUM_UNLOCK(sc);
2857
2858         setbit(bo->bo_flags, item);
2859         ieee80211_beacon_update(ni, m, mcast);
2860
2861         rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb);
2862 }
2863
2864 static int
2865 rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k,
2866     uint16_t base)
2867 {
2868
2869         if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen))
2870                 return EIO;
2871
2872         if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) {
2873                 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE,
2874                     k->wk_txmic, 8))
2875                         return EIO;
2876                 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8,
2877                     k->wk_rxmic, 8))
2878                         return EIO;
2879         }
2880
2881         return 0;
2882 }
2883
2884 static void
2885 rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data,
2886     uint8_t rvp_id)
2887 {
2888         struct ieee80211_key *k = &data->key;
2889         uint8_t mode;
2890
2891         if (sc->sc_clr_shkeys == 0) {
2892                 rum_clr_shkey_regs(sc);
2893                 sc->sc_clr_shkeys = 1;
2894         }
2895
2896         mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2897         if (mode == 0)
2898                 goto print_err;
2899
2900         DPRINTFN(1, "setting group key %d for vap %d, mode %d "
2901             "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2902             (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2903             (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2904
2905         /* Install the key. */
2906         if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0)
2907                 goto print_err;
2908
2909         /* Set cipher mode. */
2910         if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2911               mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX,
2912               RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX)
2913             != 0)
2914                 goto print_err;
2915
2916         /* Mark this key as valid. */
2917         if (rum_setbits(sc, RT2573_SEC_CSR0,
2918               1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0)
2919                 goto print_err;
2920
2921         return;
2922
2923 print_err:
2924         device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n",
2925             __func__, k->wk_keyix, rvp_id);
2926 }
2927
2928 static void
2929 rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data,
2930     uint8_t rvp_id)
2931 {
2932         struct ieee80211_key *k = &data->key;
2933
2934         DPRINTF("%s: removing group key %d for vap %d\n", __func__,
2935             k->wk_keyix, rvp_id);
2936         rum_clrbits(sc,
2937             rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5,
2938             RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX);
2939         rum_clrbits(sc, RT2573_SEC_CSR0,
2940             rvp_id * RT2573_SKEY_MAX + k->wk_keyix);
2941 }
2942
2943 static void
2944 rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data,
2945     uint8_t rvp_id)
2946 {
2947         struct ieee80211_key *k = &data->key;
2948         uint8_t buf[IEEE80211_ADDR_LEN + 1];
2949         uint8_t mode;
2950
2951         mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen);
2952         if (mode == 0)
2953                 goto print_err;
2954
2955         DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d "
2956             "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode,
2957             (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off",
2958             (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off");
2959
2960         /* Install the key. */
2961         if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0)
2962                 goto print_err;
2963
2964         IEEE80211_ADDR_COPY(buf, k->wk_macaddr);
2965         buf[IEEE80211_ADDR_LEN] = mode;
2966
2967         /* Set transmitter address and cipher mode. */
2968         if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix),
2969               buf, sizeof buf) != 0)
2970                 goto print_err;
2971
2972         /* Enable key table lookup for this vap. */
2973         if (sc->vap_key_count[rvp_id]++ == 0)
2974                 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0)
2975                         goto print_err;
2976
2977         /* Mark this key as valid. */
2978         if (rum_setbits(sc,
2979               k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2980               1 << (k->wk_keyix % 32)) != 0)
2981                 goto print_err;
2982
2983         return;
2984
2985 print_err:
2986         device_printf(sc->sc_dev,
2987             "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix,
2988             rvp_id);
2989 }
2990
2991 static void
2992 rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data,
2993     uint8_t rvp_id)
2994 {
2995         struct ieee80211_key *k = &data->key;
2996
2997         DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix);
2998         rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3,
2999             1 << (k->wk_keyix % 32));
3000         sc->keys_bmap &= ~(1ULL << k->wk_keyix);
3001         if (--sc->vap_key_count[rvp_id] == 0)
3002                 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id);
3003 }
3004
3005 static int
3006 rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k,
3007     ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix)
3008 {
3009         struct rum_softc *sc = vap->iv_ic->ic_softc;
3010         uint8_t i;
3011
3012         if (!(&vap->iv_nw_keys[0] <= k &&
3013              k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) {
3014                 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) {
3015                         RUM_LOCK(sc);
3016                         for (i = 0; i < RT2573_ADDR_MAX; i++) {
3017                                 if ((sc->keys_bmap & (1ULL << i)) == 0) {
3018                                         sc->keys_bmap |= (1ULL << i);
3019                                         *keyix = i;
3020                                         break;
3021                                 }
3022                         }
3023                         RUM_UNLOCK(sc);
3024                         if (i == RT2573_ADDR_MAX) {
3025                                 device_printf(sc->sc_dev,
3026                                     "%s: no free space in the key table\n",
3027                                     __func__);
3028                                 return 0;
3029                         }
3030                 } else
3031                         *keyix = 0;
3032         } else {
3033                 *keyix = ieee80211_crypto_get_key_wepidx(vap, k);
3034         }
3035         *rxkeyix = *keyix;
3036         return 1;
3037 }
3038
3039 static int
3040 rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k)
3041 {
3042         struct rum_softc *sc = vap->iv_ic->ic_softc;
3043         int group;
3044
3045         if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3046                 /* Not for us. */
3047                 return 1;
3048         }
3049
3050         group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID];
3051
3052         return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3053                    group ? rum_group_key_set_cb : rum_pair_key_set_cb);
3054 }
3055
3056 static int
3057 rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k)
3058 {
3059         struct rum_softc *sc = vap->iv_ic->ic_softc;
3060         int group;
3061
3062         if (k->wk_flags & IEEE80211_KEY_SWCRYPT) {
3063                 /* Not for us. */
3064                 return 1;
3065         }
3066
3067         group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID];
3068
3069         return !rum_cmd_sleepable(sc, k, sizeof(*k), 0,
3070                    group ? rum_group_key_del_cb : rum_pair_key_del_cb);
3071 }
3072
3073 static int
3074 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
3075     const struct ieee80211_bpf_params *params)
3076 {
3077         struct rum_softc *sc = ni->ni_ic->ic_softc;
3078         int ret;
3079
3080         RUM_LOCK(sc);
3081         /* prevent management frames from being sent if we're not ready */
3082         if (!sc->sc_running) {
3083                 ret = ENETDOWN;
3084                 goto bad;
3085         }
3086         if (sc->tx_nfree < RUM_TX_MINFREE) {
3087                 ret = EIO;
3088                 goto bad;
3089         }
3090
3091         if (params == NULL) {
3092                 /*
3093                  * Legacy path; interpret frame contents to decide
3094                  * precisely how to send the frame.
3095                  */
3096                 if ((ret = rum_tx_mgt(sc, m, ni)) != 0)
3097                         goto bad;
3098         } else {
3099                 /*
3100                  * Caller supplied explicit parameters to use in
3101                  * sending the frame.
3102                  */
3103                 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0)
3104                         goto bad;
3105         }
3106         RUM_UNLOCK(sc);
3107
3108         return 0;
3109 bad:
3110         RUM_UNLOCK(sc);
3111         m_freem(m);
3112         return ret;
3113 }
3114
3115 static void
3116 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni)
3117 {
3118         struct ieee80211vap *vap = ni->ni_vap;
3119         struct rum_vap *rvp = RUM_VAP(vap);
3120
3121         /* clear statistic registers (STA_CSR0 to STA_CSR5) */
3122         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta);
3123
3124         usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3125 }
3126
3127 static void
3128 rum_ratectl_timeout(void *arg)
3129 {
3130         struct rum_vap *rvp = arg;
3131         struct ieee80211vap *vap = &rvp->vap;
3132         struct ieee80211com *ic = vap->iv_ic;
3133
3134         ieee80211_runtask(ic, &rvp->ratectl_task);
3135 }
3136
3137 static void
3138 rum_ratectl_task(void *arg, int pending)
3139 {
3140         struct rum_vap *rvp = arg;
3141         struct ieee80211vap *vap = &rvp->vap;
3142         struct rum_softc *sc = vap->iv_ic->ic_softc;
3143         struct ieee80211_ratectl_tx_stats *txs = &sc->sc_txs;
3144         int ok[3], fail;
3145
3146         RUM_LOCK(sc);
3147         /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */
3148         rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta));
3149
3150         ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */
3151         ok[1] = (le32toh(sc->sta[4]) >> 16);    /* TX ok w/ one retry */
3152         ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */
3153         fail =  (le32toh(sc->sta[5]) >> 16);    /* TX retry-fail count */
3154
3155         txs->flags = IEEE80211_RATECTL_TX_STATS_RETRIES;
3156         txs->nframes = ok[0] + ok[1] + ok[2] + fail;
3157         txs->nsuccess = txs->nframes - fail;
3158         /* XXX at least */
3159         txs->nretries = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1);
3160
3161         if (txs->nframes != 0)
3162                 ieee80211_ratectl_tx_update(vap, txs);
3163
3164         /* count TX retry-fail as Tx errors */
3165         if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail);
3166
3167         usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp);
3168         RUM_UNLOCK(sc);
3169 }
3170
3171 static void
3172 rum_scan_start(struct ieee80211com *ic)
3173 {
3174         struct rum_softc *sc = ic->ic_softc;
3175
3176         RUM_LOCK(sc);
3177         rum_abort_tsf_sync(sc);
3178         rum_set_bssid(sc, ieee80211broadcastaddr);
3179         RUM_UNLOCK(sc);
3180
3181 }
3182
3183 static void
3184 rum_scan_end(struct ieee80211com *ic)
3185 {
3186         struct rum_softc *sc = ic->ic_softc;
3187
3188         if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) {
3189                 RUM_LOCK(sc);
3190                 if (ic->ic_opmode != IEEE80211_M_AHDEMO)
3191                         rum_enable_tsf_sync(sc);
3192                 else
3193                         rum_enable_tsf(sc);
3194                 rum_set_bssid(sc, sc->sc_bssid);
3195                 RUM_UNLOCK(sc);
3196         }
3197 }
3198
3199 static void
3200 rum_set_channel(struct ieee80211com *ic)
3201 {
3202         struct rum_softc *sc = ic->ic_softc;
3203
3204         RUM_LOCK(sc);
3205         rum_set_chan(sc, ic->ic_curchan);
3206         RUM_UNLOCK(sc);
3207 }
3208
3209 static void
3210 rum_getradiocaps(struct ieee80211com *ic,
3211     int maxchans, int *nchans, struct ieee80211_channel chans[])
3212 {
3213         struct rum_softc *sc = ic->ic_softc;
3214         uint8_t bands[IEEE80211_MODE_BYTES];
3215
3216         memset(bands, 0, sizeof(bands));
3217         setbit(bands, IEEE80211_MODE_11B);
3218         setbit(bands, IEEE80211_MODE_11G);
3219         ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, bands, 0);
3220
3221         if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) {
3222                 setbit(bands, IEEE80211_MODE_11A);
3223                 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans,
3224                     rum_chan_5ghz, nitems(rum_chan_5ghz), bands, 0);
3225         }
3226 }
3227
3228 static int
3229 rum_get_rssi(struct rum_softc *sc, uint8_t raw)
3230 {
3231         struct ieee80211com *ic = &sc->sc_ic;
3232         int lna, agc, rssi;
3233
3234         lna = (raw >> 5) & 0x3;
3235         agc = raw & 0x1f;
3236
3237         if (lna == 0) {
3238                 /*
3239                  * No RSSI mapping
3240                  *
3241                  * NB: Since RSSI is relative to noise floor, -1 is
3242                  *     adequate for caller to know error happened.
3243                  */
3244                 return -1;
3245         }
3246
3247         rssi = (2 * agc) - RT2573_NOISE_FLOOR;
3248
3249         if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) {
3250                 rssi += sc->rssi_2ghz_corr;
3251
3252                 if (lna == 1)
3253                         rssi -= 64;
3254                 else if (lna == 2)
3255                         rssi -= 74;
3256                 else if (lna == 3)
3257                         rssi -= 90;
3258         } else {
3259                 rssi += sc->rssi_5ghz_corr;
3260
3261                 if (!sc->ext_5ghz_lna && lna != 1)
3262                         rssi += 4;
3263
3264                 if (lna == 1)
3265                         rssi -= 64;
3266                 else if (lna == 2)
3267                         rssi -= 86;
3268                 else if (lna == 3)
3269                         rssi -= 100;
3270         }
3271         return rssi;
3272 }
3273
3274 static int
3275 rum_pause(struct rum_softc *sc, int timeout)
3276 {
3277
3278         usb_pause_mtx(&sc->sc_mtx, timeout);
3279         return (0);
3280 }
3281
3282 static device_method_t rum_methods[] = {
3283         /* Device interface */
3284         DEVMETHOD(device_probe,         rum_match),
3285         DEVMETHOD(device_attach,        rum_attach),
3286         DEVMETHOD(device_detach,        rum_detach),
3287         DEVMETHOD_END
3288 };
3289
3290 static driver_t rum_driver = {
3291         .name = "rum",
3292         .methods = rum_methods,
3293         .size = sizeof(struct rum_softc),
3294 };
3295
3296 static devclass_t rum_devclass;
3297
3298 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0);
3299 MODULE_DEPEND(rum, wlan, 1, 1, 1);
3300 MODULE_DEPEND(rum, usb, 1, 1, 1);
3301 MODULE_VERSION(rum, 1);
3302 USB_PNP_HOST_INFO(rum_devs);