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); 3303