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 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 #include <sys/cdefs.h> 22 __FBSDID("$FreeBSD$"); 23 24 /*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/sockio.h> 31 #include <sys/sysctl.h> 32 #include <sys/lock.h> 33 #include <sys/mutex.h> 34 #include <sys/mbuf.h> 35 #include <sys/kernel.h> 36 #include <sys/socket.h> 37 #include <sys/systm.h> 38 #include <sys/malloc.h> 39 #include <sys/module.h> 40 #include <sys/bus.h> 41 #include <sys/endian.h> 42 #include <sys/kdb.h> 43 44 #include <machine/bus.h> 45 #include <machine/resource.h> 46 #include <sys/rman.h> 47 48 #include <net/bpf.h> 49 #include <net/if.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 SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 84 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 85 "Debug level"); 86 #endif 87 88 static const struct usb_device_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(MSI, RT2573_1), 122 RUM_DEV(MSI, RT2573_2), 123 RUM_DEV(MSI, RT2573_3), 124 RUM_DEV(MSI, RT2573_4), 125 RUM_DEV(NOVATECH, RT2573), 126 RUM_DEV(PLANEX2, GWUS54HP), 127 RUM_DEV(PLANEX2, GWUS54MINI2), 128 RUM_DEV(PLANEX2, GWUSMM), 129 RUM_DEV(QCOM, RT2573), 130 RUM_DEV(QCOM, RT2573_2), 131 RUM_DEV(QCOM, RT2573_3), 132 RUM_DEV(RALINK, RT2573), 133 RUM_DEV(RALINK, RT2573_2), 134 RUM_DEV(RALINK, RT2671), 135 RUM_DEV(SITECOMEU, WL113R2), 136 RUM_DEV(SITECOMEU, WL172), 137 RUM_DEV(SPARKLAN, RT2573), 138 RUM_DEV(SURECOM, RT2573), 139 #undef RUM_DEV 140 }; 141 142 MODULE_DEPEND(rum, wlan, 1, 1, 1); 143 MODULE_DEPEND(rum, usb, 1, 1, 1); 144 145 static device_probe_t rum_match; 146 static device_attach_t rum_attach; 147 static device_detach_t rum_detach; 148 149 static usb_callback_t rum_bulk_read_callback; 150 static usb_callback_t rum_bulk_write_callback; 151 152 static usb_error_t rum_do_request(struct rum_softc *sc, 153 struct usb_device_request *req, void *data); 154 static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 155 const char name[IFNAMSIZ], int unit, int opmode, 156 int flags, const uint8_t bssid[IEEE80211_ADDR_LEN], 157 const uint8_t mac[IEEE80211_ADDR_LEN]); 158 static void rum_vap_delete(struct ieee80211vap *); 159 static void rum_tx_free(struct rum_tx_data *, int); 160 static void rum_setup_tx_list(struct rum_softc *); 161 static void rum_unsetup_tx_list(struct rum_softc *); 162 static int rum_newstate(struct ieee80211vap *, 163 enum ieee80211_state, int); 164 static void rum_setup_tx_desc(struct rum_softc *, 165 struct rum_tx_desc *, uint32_t, uint16_t, int, 166 int); 167 static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 168 struct ieee80211_node *); 169 static int rum_tx_raw(struct rum_softc *, struct mbuf *, 170 struct ieee80211_node *, 171 const struct ieee80211_bpf_params *); 172 static int rum_tx_data(struct rum_softc *, struct mbuf *, 173 struct ieee80211_node *); 174 static void rum_start(struct ifnet *); 175 static int rum_ioctl(struct ifnet *, u_long, caddr_t); 176 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 177 int); 178 static uint32_t rum_read(struct rum_softc *, uint16_t); 179 static void rum_read_multi(struct rum_softc *, uint16_t, void *, 180 int); 181 static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 182 static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 183 size_t); 184 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 185 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 186 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 187 static void rum_select_antenna(struct rum_softc *); 188 static void rum_enable_mrr(struct rum_softc *); 189 static void rum_set_txpreamble(struct rum_softc *); 190 static void rum_set_basicrates(struct rum_softc *); 191 static void rum_select_band(struct rum_softc *, 192 struct ieee80211_channel *); 193 static void rum_set_chan(struct rum_softc *, 194 struct ieee80211_channel *); 195 static void rum_enable_tsf_sync(struct rum_softc *); 196 static void rum_enable_tsf(struct rum_softc *); 197 static void rum_update_slot(struct ifnet *); 198 static void rum_set_bssid(struct rum_softc *, const uint8_t *); 199 static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 200 static void rum_update_mcast(struct ifnet *); 201 static void rum_update_promisc(struct ifnet *); 202 static void rum_setpromisc(struct rum_softc *); 203 static const char *rum_get_rf(int); 204 static void rum_read_eeprom(struct rum_softc *); 205 static int rum_bbp_init(struct rum_softc *); 206 static void rum_init_locked(struct rum_softc *); 207 static void rum_init(void *); 208 static void rum_stop(struct rum_softc *); 209 static void rum_load_microcode(struct rum_softc *, const uint8_t *, 210 size_t); 211 static int rum_prepare_beacon(struct rum_softc *, 212 struct ieee80211vap *); 213 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 214 const struct ieee80211_bpf_params *); 215 static void rum_scan_start(struct ieee80211com *); 216 static void rum_scan_end(struct ieee80211com *); 217 static void rum_set_channel(struct ieee80211com *); 218 static int rum_get_rssi(struct rum_softc *, uint8_t); 219 static void rum_ratectl_start(struct rum_softc *, 220 struct ieee80211_node *); 221 static void rum_ratectl_timeout(void *); 222 static void rum_ratectl_task(void *, int); 223 static int rum_pause(struct rum_softc *, int); 224 225 static const struct { 226 uint32_t reg; 227 uint32_t val; 228 } rum_def_mac[] = { 229 { RT2573_TXRX_CSR0, 0x025fb032 }, 230 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 231 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 232 { RT2573_TXRX_CSR3, 0x00858687 }, 233 { RT2573_TXRX_CSR7, 0x2e31353b }, 234 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 235 { RT2573_TXRX_CSR15, 0x0000000f }, 236 { RT2573_MAC_CSR6, 0x00000fff }, 237 { RT2573_MAC_CSR8, 0x016c030a }, 238 { RT2573_MAC_CSR10, 0x00000718 }, 239 { RT2573_MAC_CSR12, 0x00000004 }, 240 { RT2573_MAC_CSR13, 0x00007f00 }, 241 { RT2573_SEC_CSR0, 0x00000000 }, 242 { RT2573_SEC_CSR1, 0x00000000 }, 243 { RT2573_SEC_CSR5, 0x00000000 }, 244 { RT2573_PHY_CSR1, 0x000023b0 }, 245 { RT2573_PHY_CSR5, 0x00040a06 }, 246 { RT2573_PHY_CSR6, 0x00080606 }, 247 { RT2573_PHY_CSR7, 0x00000408 }, 248 { RT2573_AIFSN_CSR, 0x00002273 }, 249 { RT2573_CWMIN_CSR, 0x00002344 }, 250 { RT2573_CWMAX_CSR, 0x000034aa } 251 }; 252 253 static const struct { 254 uint8_t reg; 255 uint8_t val; 256 } rum_def_bbp[] = { 257 { 3, 0x80 }, 258 { 15, 0x30 }, 259 { 17, 0x20 }, 260 { 21, 0xc8 }, 261 { 22, 0x38 }, 262 { 23, 0x06 }, 263 { 24, 0xfe }, 264 { 25, 0x0a }, 265 { 26, 0x0d }, 266 { 32, 0x0b }, 267 { 34, 0x12 }, 268 { 37, 0x07 }, 269 { 39, 0xf8 }, 270 { 41, 0x60 }, 271 { 53, 0x10 }, 272 { 54, 0x18 }, 273 { 60, 0x10 }, 274 { 61, 0x04 }, 275 { 62, 0x04 }, 276 { 75, 0xfe }, 277 { 86, 0xfe }, 278 { 88, 0xfe }, 279 { 90, 0x0f }, 280 { 99, 0x00 }, 281 { 102, 0x16 }, 282 { 107, 0x04 } 283 }; 284 285 static const struct rfprog { 286 uint8_t chan; 287 uint32_t r1, r2, r3, r4; 288 } rum_rf5226[] = { 289 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 290 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 291 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 292 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 293 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 294 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 295 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 296 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 297 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 298 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 299 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 300 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 301 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 302 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 303 304 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 305 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 306 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 307 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 308 309 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 310 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 311 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 312 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 313 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 314 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 315 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 316 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 317 318 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 319 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 320 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 321 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 322 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 323 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 324 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 325 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 326 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 327 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 328 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 329 330 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 331 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 332 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 333 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 334 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 335 }, rum_rf5225[] = { 336 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 337 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 338 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 339 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 340 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 341 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 342 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 343 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 344 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 345 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 346 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 347 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 348 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 349 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 350 351 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 352 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 353 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 354 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 355 356 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 357 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 358 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 359 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 360 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 361 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 362 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 363 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 364 365 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 366 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 367 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 368 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 369 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 370 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 371 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 372 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 373 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 374 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 375 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 376 377 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 378 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 379 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 380 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 381 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 382 }; 383 384 static const struct usb_config rum_config[RUM_N_TRANSFER] = { 385 [RUM_BULK_WR] = { 386 .type = UE_BULK, 387 .endpoint = UE_ADDR_ANY, 388 .direction = UE_DIR_OUT, 389 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 390 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 391 .callback = rum_bulk_write_callback, 392 .timeout = 5000, /* ms */ 393 }, 394 [RUM_BULK_RD] = { 395 .type = UE_BULK, 396 .endpoint = UE_ADDR_ANY, 397 .direction = UE_DIR_IN, 398 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 399 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 400 .callback = rum_bulk_read_callback, 401 }, 402 }; 403 404 static int 405 rum_match(device_t self) 406 { 407 struct usb_attach_arg *uaa = device_get_ivars(self); 408 409 if (uaa->usb_mode != USB_MODE_HOST) 410 return (ENXIO); 411 if (uaa->info.bConfigIndex != 0) 412 return (ENXIO); 413 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 414 return (ENXIO); 415 416 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 417 } 418 419 static int 420 rum_attach(device_t self) 421 { 422 struct usb_attach_arg *uaa = device_get_ivars(self); 423 struct rum_softc *sc = device_get_softc(self); 424 struct ieee80211com *ic; 425 struct ifnet *ifp; 426 uint8_t iface_index, bands; 427 uint32_t tmp; 428 int error, ntries; 429 430 device_set_usb_desc(self); 431 sc->sc_udev = uaa->device; 432 sc->sc_dev = self; 433 434 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 435 MTX_NETWORK_LOCK, MTX_DEF); 436 437 iface_index = RT2573_IFACE_INDEX; 438 error = usbd_transfer_setup(uaa->device, &iface_index, 439 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 440 if (error) { 441 device_printf(self, "could not allocate USB transfers, " 442 "err=%s\n", usbd_errstr(error)); 443 goto detach; 444 } 445 446 RUM_LOCK(sc); 447 /* retrieve RT2573 rev. no */ 448 for (ntries = 0; ntries < 100; ntries++) { 449 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 450 break; 451 if (rum_pause(sc, hz / 100)) 452 break; 453 } 454 if (ntries == 100) { 455 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 456 RUM_UNLOCK(sc); 457 goto detach; 458 } 459 460 /* retrieve MAC address and various other things from EEPROM */ 461 rum_read_eeprom(sc); 462 463 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 464 tmp, rum_get_rf(sc->rf_rev)); 465 466 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 467 RUM_UNLOCK(sc); 468 469 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 470 if (ifp == NULL) { 471 device_printf(sc->sc_dev, "can not if_alloc()\n"); 472 goto detach; 473 } 474 ic = ifp->if_l2com; 475 476 ifp->if_softc = sc; 477 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 478 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 479 ifp->if_init = rum_init; 480 ifp->if_ioctl = rum_ioctl; 481 ifp->if_start = rum_start; 482 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 483 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 484 IFQ_SET_READY(&ifp->if_snd); 485 486 ic->ic_ifp = ifp; 487 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 488 489 /* set device capabilities */ 490 ic->ic_caps = 491 IEEE80211_C_STA /* station mode supported */ 492 | IEEE80211_C_IBSS /* IBSS mode supported */ 493 | IEEE80211_C_MONITOR /* monitor mode supported */ 494 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 495 | IEEE80211_C_TXPMGT /* tx power management */ 496 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 497 | IEEE80211_C_SHSLOT /* short slot time supported */ 498 | IEEE80211_C_BGSCAN /* bg scanning supported */ 499 | IEEE80211_C_WPA /* 802.11i */ 500 ; 501 502 bands = 0; 503 setbit(&bands, IEEE80211_MODE_11B); 504 setbit(&bands, IEEE80211_MODE_11G); 505 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 506 setbit(&bands, IEEE80211_MODE_11A); 507 ieee80211_init_channels(ic, NULL, &bands); 508 509 ieee80211_ifattach(ic, sc->sc_bssid); 510 ic->ic_update_promisc = rum_update_promisc; 511 ic->ic_raw_xmit = rum_raw_xmit; 512 ic->ic_scan_start = rum_scan_start; 513 ic->ic_scan_end = rum_scan_end; 514 ic->ic_set_channel = rum_set_channel; 515 516 ic->ic_vap_create = rum_vap_create; 517 ic->ic_vap_delete = rum_vap_delete; 518 ic->ic_update_mcast = rum_update_mcast; 519 520 ieee80211_radiotap_attach(ic, 521 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 522 RT2573_TX_RADIOTAP_PRESENT, 523 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 524 RT2573_RX_RADIOTAP_PRESENT); 525 526 if (bootverbose) 527 ieee80211_announce(ic); 528 529 return (0); 530 531 detach: 532 rum_detach(self); 533 return (ENXIO); /* failure */ 534 } 535 536 static int 537 rum_detach(device_t self) 538 { 539 struct rum_softc *sc = device_get_softc(self); 540 struct ifnet *ifp = sc->sc_ifp; 541 struct ieee80211com *ic; 542 543 /* stop all USB transfers */ 544 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 545 546 /* free TX list, if any */ 547 RUM_LOCK(sc); 548 rum_unsetup_tx_list(sc); 549 RUM_UNLOCK(sc); 550 551 if (ifp) { 552 ic = ifp->if_l2com; 553 ieee80211_ifdetach(ic); 554 if_free(ifp); 555 } 556 mtx_destroy(&sc->sc_mtx); 557 558 return (0); 559 } 560 561 static usb_error_t 562 rum_do_request(struct rum_softc *sc, 563 struct usb_device_request *req, void *data) 564 { 565 usb_error_t err; 566 int ntries = 10; 567 568 while (ntries--) { 569 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 570 req, data, 0, NULL, 250 /* ms */); 571 if (err == 0) 572 break; 573 574 DPRINTFN(1, "Control request failed, %s (retrying)\n", 575 usbd_errstr(err)); 576 if (rum_pause(sc, hz / 100)) 577 break; 578 } 579 return (err); 580 } 581 582 static struct ieee80211vap * 583 rum_vap_create(struct ieee80211com *ic, 584 const char name[IFNAMSIZ], int unit, int opmode, int flags, 585 const uint8_t bssid[IEEE80211_ADDR_LEN], 586 const uint8_t mac[IEEE80211_ADDR_LEN]) 587 { 588 struct rum_softc *sc = ic->ic_ifp->if_softc; 589 struct rum_vap *rvp; 590 struct ieee80211vap *vap; 591 592 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 593 return NULL; 594 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 595 M_80211_VAP, M_NOWAIT | M_ZERO); 596 if (rvp == NULL) 597 return NULL; 598 vap = &rvp->vap; 599 /* enable s/w bmiss handling for sta mode */ 600 ieee80211_vap_setup(ic, vap, name, unit, opmode, 601 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 602 603 /* override state transition machine */ 604 rvp->newstate = vap->iv_newstate; 605 vap->iv_newstate = rum_newstate; 606 607 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 608 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 609 ieee80211_ratectl_init(vap); 610 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 611 /* complete setup */ 612 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 613 ic->ic_opmode = opmode; 614 return vap; 615 } 616 617 static void 618 rum_vap_delete(struct ieee80211vap *vap) 619 { 620 struct rum_vap *rvp = RUM_VAP(vap); 621 struct ieee80211com *ic = vap->iv_ic; 622 623 usb_callout_drain(&rvp->ratectl_ch); 624 ieee80211_draintask(ic, &rvp->ratectl_task); 625 ieee80211_ratectl_deinit(vap); 626 ieee80211_vap_detach(vap); 627 free(rvp, M_80211_VAP); 628 } 629 630 static void 631 rum_tx_free(struct rum_tx_data *data, int txerr) 632 { 633 struct rum_softc *sc = data->sc; 634 635 if (data->m != NULL) { 636 if (data->m->m_flags & M_TXCB) 637 ieee80211_process_callback(data->ni, data->m, 638 txerr ? ETIMEDOUT : 0); 639 m_freem(data->m); 640 data->m = NULL; 641 642 ieee80211_free_node(data->ni); 643 data->ni = NULL; 644 } 645 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 646 sc->tx_nfree++; 647 } 648 649 static void 650 rum_setup_tx_list(struct rum_softc *sc) 651 { 652 struct rum_tx_data *data; 653 int i; 654 655 sc->tx_nfree = 0; 656 STAILQ_INIT(&sc->tx_q); 657 STAILQ_INIT(&sc->tx_free); 658 659 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 660 data = &sc->tx_data[i]; 661 662 data->sc = sc; 663 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 664 sc->tx_nfree++; 665 } 666 } 667 668 static void 669 rum_unsetup_tx_list(struct rum_softc *sc) 670 { 671 struct rum_tx_data *data; 672 int i; 673 674 /* make sure any subsequent use of the queues will fail */ 675 sc->tx_nfree = 0; 676 STAILQ_INIT(&sc->tx_q); 677 STAILQ_INIT(&sc->tx_free); 678 679 /* free up all node references and mbufs */ 680 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 681 data = &sc->tx_data[i]; 682 683 if (data->m != NULL) { 684 m_freem(data->m); 685 data->m = NULL; 686 } 687 if (data->ni != NULL) { 688 ieee80211_free_node(data->ni); 689 data->ni = NULL; 690 } 691 } 692 } 693 694 static int 695 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 696 { 697 struct rum_vap *rvp = RUM_VAP(vap); 698 struct ieee80211com *ic = vap->iv_ic; 699 struct rum_softc *sc = ic->ic_ifp->if_softc; 700 const struct ieee80211_txparam *tp; 701 enum ieee80211_state ostate; 702 struct ieee80211_node *ni; 703 uint32_t tmp; 704 705 ostate = vap->iv_state; 706 DPRINTF("%s -> %s\n", 707 ieee80211_state_name[ostate], 708 ieee80211_state_name[nstate]); 709 710 IEEE80211_UNLOCK(ic); 711 RUM_LOCK(sc); 712 usb_callout_stop(&rvp->ratectl_ch); 713 714 switch (nstate) { 715 case IEEE80211_S_INIT: 716 if (ostate == IEEE80211_S_RUN) { 717 /* abort TSF synchronization */ 718 tmp = rum_read(sc, RT2573_TXRX_CSR9); 719 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 720 } 721 break; 722 723 case IEEE80211_S_RUN: 724 ni = vap->iv_bss; 725 726 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 727 rum_update_slot(ic->ic_ifp); 728 rum_enable_mrr(sc); 729 rum_set_txpreamble(sc); 730 rum_set_basicrates(sc); 731 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 732 rum_set_bssid(sc, sc->sc_bssid); 733 } 734 735 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 736 vap->iv_opmode == IEEE80211_M_IBSS) 737 rum_prepare_beacon(sc, vap); 738 739 if (vap->iv_opmode != IEEE80211_M_MONITOR) 740 rum_enable_tsf_sync(sc); 741 else 742 rum_enable_tsf(sc); 743 744 /* enable automatic rate adaptation */ 745 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 746 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 747 rum_ratectl_start(sc, ni); 748 break; 749 default: 750 break; 751 } 752 RUM_UNLOCK(sc); 753 IEEE80211_LOCK(ic); 754 return (rvp->newstate(vap, nstate, arg)); 755 } 756 757 static void 758 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 759 { 760 struct rum_softc *sc = usbd_xfer_softc(xfer); 761 struct ifnet *ifp = sc->sc_ifp; 762 struct ieee80211vap *vap; 763 struct rum_tx_data *data; 764 struct mbuf *m; 765 struct usb_page_cache *pc; 766 unsigned int len; 767 int actlen, sumlen; 768 769 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 770 771 switch (USB_GET_STATE(xfer)) { 772 case USB_ST_TRANSFERRED: 773 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 774 775 /* free resources */ 776 data = usbd_xfer_get_priv(xfer); 777 rum_tx_free(data, 0); 778 usbd_xfer_set_priv(xfer, NULL); 779 780 ifp->if_opackets++; 781 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 782 783 /* FALLTHROUGH */ 784 case USB_ST_SETUP: 785 tr_setup: 786 data = STAILQ_FIRST(&sc->tx_q); 787 if (data) { 788 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 789 m = data->m; 790 791 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) { 792 DPRINTFN(0, "data overflow, %u bytes\n", 793 m->m_pkthdr.len); 794 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 795 } 796 pc = usbd_xfer_get_frame(xfer, 0); 797 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 798 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 799 m->m_pkthdr.len); 800 801 vap = data->ni->ni_vap; 802 if (ieee80211_radiotap_active_vap(vap)) { 803 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 804 805 tap->wt_flags = 0; 806 tap->wt_rate = data->rate; 807 tap->wt_antenna = sc->tx_ant; 808 809 ieee80211_radiotap_tx(vap, m); 810 } 811 812 /* align end on a 4-bytes boundary */ 813 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 814 if ((len % 64) == 0) 815 len += 4; 816 817 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 818 m->m_pkthdr.len, len); 819 820 usbd_xfer_set_frame_len(xfer, 0, len); 821 usbd_xfer_set_priv(xfer, data); 822 823 usbd_transfer_submit(xfer); 824 } 825 RUM_UNLOCK(sc); 826 rum_start(ifp); 827 RUM_LOCK(sc); 828 break; 829 830 default: /* Error */ 831 DPRINTFN(11, "transfer error, %s\n", 832 usbd_errstr(error)); 833 834 ifp->if_oerrors++; 835 data = usbd_xfer_get_priv(xfer); 836 if (data != NULL) { 837 rum_tx_free(data, error); 838 usbd_xfer_set_priv(xfer, NULL); 839 } 840 841 if (error != USB_ERR_CANCELLED) { 842 if (error == USB_ERR_TIMEOUT) 843 device_printf(sc->sc_dev, "device timeout\n"); 844 845 /* 846 * Try to clear stall first, also if other 847 * errors occur, hence clearing stall 848 * introduces a 50 ms delay: 849 */ 850 usbd_xfer_set_stall(xfer); 851 goto tr_setup; 852 } 853 break; 854 } 855 } 856 857 static void 858 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 859 { 860 struct rum_softc *sc = usbd_xfer_softc(xfer); 861 struct ifnet *ifp = sc->sc_ifp; 862 struct ieee80211com *ic = ifp->if_l2com; 863 struct ieee80211_node *ni; 864 struct mbuf *m = NULL; 865 struct usb_page_cache *pc; 866 uint32_t flags; 867 uint8_t rssi = 0; 868 int len; 869 870 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 871 872 switch (USB_GET_STATE(xfer)) { 873 case USB_ST_TRANSFERRED: 874 875 DPRINTFN(15, "rx done, actlen=%d\n", len); 876 877 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) { 878 DPRINTF("%s: xfer too short %d\n", 879 device_get_nameunit(sc->sc_dev), len); 880 ifp->if_ierrors++; 881 goto tr_setup; 882 } 883 884 len -= RT2573_RX_DESC_SIZE; 885 pc = usbd_xfer_get_frame(xfer, 0); 886 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 887 888 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 889 flags = le32toh(sc->sc_rx_desc.flags); 890 if (flags & RT2573_RX_CRC_ERROR) { 891 /* 892 * This should not happen since we did not 893 * request to receive those frames when we 894 * filled RUM_TXRX_CSR2: 895 */ 896 DPRINTFN(5, "PHY or CRC error\n"); 897 ifp->if_ierrors++; 898 goto tr_setup; 899 } 900 901 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 902 if (m == NULL) { 903 DPRINTF("could not allocate mbuf\n"); 904 ifp->if_ierrors++; 905 goto tr_setup; 906 } 907 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 908 mtod(m, uint8_t *), len); 909 910 /* finalize mbuf */ 911 m->m_pkthdr.rcvif = ifp; 912 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 913 914 if (ieee80211_radiotap_active(ic)) { 915 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 916 917 /* XXX read tsf */ 918 tap->wr_flags = 0; 919 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 920 (flags & RT2573_RX_OFDM) ? 921 IEEE80211_T_OFDM : IEEE80211_T_CCK); 922 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 923 tap->wr_antnoise = RT2573_NOISE_FLOOR; 924 tap->wr_antenna = sc->rx_ant; 925 } 926 /* FALLTHROUGH */ 927 case USB_ST_SETUP: 928 tr_setup: 929 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 930 usbd_transfer_submit(xfer); 931 932 /* 933 * At the end of a USB callback it is always safe to unlock 934 * the private mutex of a device! That is why we do the 935 * "ieee80211_input" here, and not some lines up! 936 */ 937 RUM_UNLOCK(sc); 938 if (m) { 939 ni = ieee80211_find_rxnode(ic, 940 mtod(m, struct ieee80211_frame_min *)); 941 if (ni != NULL) { 942 (void) ieee80211_input(ni, m, rssi, 943 RT2573_NOISE_FLOOR); 944 ieee80211_free_node(ni); 945 } else 946 (void) ieee80211_input_all(ic, m, rssi, 947 RT2573_NOISE_FLOOR); 948 } 949 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 950 !IFQ_IS_EMPTY(&ifp->if_snd)) 951 rum_start(ifp); 952 RUM_LOCK(sc); 953 return; 954 955 default: /* Error */ 956 if (error != USB_ERR_CANCELLED) { 957 /* try to clear stall first */ 958 usbd_xfer_set_stall(xfer); 959 goto tr_setup; 960 } 961 return; 962 } 963 } 964 965 static uint8_t 966 rum_plcp_signal(int rate) 967 { 968 switch (rate) { 969 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 970 case 12: return 0xb; 971 case 18: return 0xf; 972 case 24: return 0xa; 973 case 36: return 0xe; 974 case 48: return 0x9; 975 case 72: return 0xd; 976 case 96: return 0x8; 977 case 108: return 0xc; 978 979 /* CCK rates (NB: not IEEE std, device-specific) */ 980 case 2: return 0x0; 981 case 4: return 0x1; 982 case 11: return 0x2; 983 case 22: return 0x3; 984 } 985 return 0xff; /* XXX unsupported/unknown rate */ 986 } 987 988 static void 989 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 990 uint32_t flags, uint16_t xflags, int len, int rate) 991 { 992 struct ifnet *ifp = sc->sc_ifp; 993 struct ieee80211com *ic = ifp->if_l2com; 994 uint16_t plcp_length; 995 int remainder; 996 997 desc->flags = htole32(flags); 998 desc->flags |= htole32(RT2573_TX_VALID); 999 desc->flags |= htole32(len << 16); 1000 1001 desc->xflags = htole16(xflags); 1002 1003 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1004 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1005 1006 /* setup PLCP fields */ 1007 desc->plcp_signal = rum_plcp_signal(rate); 1008 desc->plcp_service = 4; 1009 1010 len += IEEE80211_CRC_LEN; 1011 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1012 desc->flags |= htole32(RT2573_TX_OFDM); 1013 1014 plcp_length = len & 0xfff; 1015 desc->plcp_length_hi = plcp_length >> 6; 1016 desc->plcp_length_lo = plcp_length & 0x3f; 1017 } else { 1018 plcp_length = (16 * len + rate - 1) / rate; 1019 if (rate == 22) { 1020 remainder = (16 * len) % 22; 1021 if (remainder != 0 && remainder < 7) 1022 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1023 } 1024 desc->plcp_length_hi = plcp_length >> 8; 1025 desc->plcp_length_lo = plcp_length & 0xff; 1026 1027 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1028 desc->plcp_signal |= 0x08; 1029 } 1030 } 1031 1032 static int 1033 rum_sendprot(struct rum_softc *sc, 1034 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1035 { 1036 struct ieee80211com *ic = ni->ni_ic; 1037 const struct ieee80211_frame *wh; 1038 struct rum_tx_data *data; 1039 struct mbuf *mprot; 1040 int protrate, ackrate, pktlen, flags, isshort; 1041 uint16_t dur; 1042 1043 RUM_LOCK_ASSERT(sc, MA_OWNED); 1044 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1045 ("protection %d", prot)); 1046 1047 wh = mtod(m, const struct ieee80211_frame *); 1048 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1049 1050 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1051 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1052 1053 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1054 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort); 1055 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1056 flags = RT2573_TX_MORE_FRAG; 1057 if (prot == IEEE80211_PROT_RTSCTS) { 1058 /* NB: CTS is the same size as an ACK */ 1059 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1060 flags |= RT2573_TX_NEED_ACK; 1061 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1062 } else { 1063 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1064 } 1065 if (mprot == NULL) { 1066 /* XXX stat + msg */ 1067 return (ENOBUFS); 1068 } 1069 data = STAILQ_FIRST(&sc->tx_free); 1070 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1071 sc->tx_nfree--; 1072 1073 data->m = mprot; 1074 data->ni = ieee80211_ref_node(ni); 1075 data->rate = protrate; 1076 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1077 1078 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1079 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1080 1081 return 0; 1082 } 1083 1084 static int 1085 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1086 { 1087 struct ieee80211vap *vap = ni->ni_vap; 1088 struct ifnet *ifp = sc->sc_ifp; 1089 struct ieee80211com *ic = ifp->if_l2com; 1090 struct rum_tx_data *data; 1091 struct ieee80211_frame *wh; 1092 const struct ieee80211_txparam *tp; 1093 struct ieee80211_key *k; 1094 uint32_t flags = 0; 1095 uint16_t dur; 1096 1097 RUM_LOCK_ASSERT(sc, MA_OWNED); 1098 1099 data = STAILQ_FIRST(&sc->tx_free); 1100 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1101 sc->tx_nfree--; 1102 1103 wh = mtod(m0, struct ieee80211_frame *); 1104 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1105 k = ieee80211_crypto_encap(ni, m0); 1106 if (k == NULL) { 1107 m_freem(m0); 1108 return ENOBUFS; 1109 } 1110 wh = mtod(m0, struct ieee80211_frame *); 1111 } 1112 1113 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1114 1115 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1116 flags |= RT2573_TX_NEED_ACK; 1117 1118 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1119 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1120 *(uint16_t *)wh->i_dur = htole16(dur); 1121 1122 /* tell hardware to add timestamp for probe responses */ 1123 if ((wh->i_fc[0] & 1124 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1125 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1126 flags |= RT2573_TX_TIMESTAMP; 1127 } 1128 1129 data->m = m0; 1130 data->ni = ni; 1131 data->rate = tp->mgmtrate; 1132 1133 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1134 1135 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1136 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1137 1138 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1139 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1140 1141 return (0); 1142 } 1143 1144 static int 1145 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1146 const struct ieee80211_bpf_params *params) 1147 { 1148 struct ieee80211com *ic = ni->ni_ic; 1149 struct rum_tx_data *data; 1150 uint32_t flags; 1151 int rate, error; 1152 1153 RUM_LOCK_ASSERT(sc, MA_OWNED); 1154 KASSERT(params != NULL, ("no raw xmit params")); 1155 1156 rate = params->ibp_rate0; 1157 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1158 m_freem(m0); 1159 return EINVAL; 1160 } 1161 flags = 0; 1162 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1163 flags |= RT2573_TX_NEED_ACK; 1164 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1165 error = rum_sendprot(sc, m0, ni, 1166 params->ibp_flags & IEEE80211_BPF_RTS ? 1167 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1168 rate); 1169 if (error || sc->tx_nfree == 0) { 1170 m_freem(m0); 1171 return ENOBUFS; 1172 } 1173 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1174 } 1175 1176 data = STAILQ_FIRST(&sc->tx_free); 1177 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1178 sc->tx_nfree--; 1179 1180 data->m = m0; 1181 data->ni = ni; 1182 data->rate = rate; 1183 1184 /* XXX need to setup descriptor ourself */ 1185 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1186 1187 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1188 m0->m_pkthdr.len, rate); 1189 1190 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1191 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1192 1193 return 0; 1194 } 1195 1196 static int 1197 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1198 { 1199 struct ieee80211vap *vap = ni->ni_vap; 1200 struct ifnet *ifp = sc->sc_ifp; 1201 struct ieee80211com *ic = ifp->if_l2com; 1202 struct rum_tx_data *data; 1203 struct ieee80211_frame *wh; 1204 const struct ieee80211_txparam *tp; 1205 struct ieee80211_key *k; 1206 uint32_t flags = 0; 1207 uint16_t dur; 1208 int error, rate; 1209 1210 RUM_LOCK_ASSERT(sc, MA_OWNED); 1211 1212 wh = mtod(m0, struct ieee80211_frame *); 1213 1214 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1215 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1216 rate = tp->mcastrate; 1217 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1218 rate = tp->ucastrate; 1219 else 1220 rate = ni->ni_txrate; 1221 1222 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1223 k = ieee80211_crypto_encap(ni, m0); 1224 if (k == NULL) { 1225 m_freem(m0); 1226 return ENOBUFS; 1227 } 1228 1229 /* packet header may have moved, reset our local pointer */ 1230 wh = mtod(m0, struct ieee80211_frame *); 1231 } 1232 1233 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1234 int prot = IEEE80211_PROT_NONE; 1235 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1236 prot = IEEE80211_PROT_RTSCTS; 1237 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1238 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1239 prot = ic->ic_protmode; 1240 if (prot != IEEE80211_PROT_NONE) { 1241 error = rum_sendprot(sc, m0, ni, prot, rate); 1242 if (error || sc->tx_nfree == 0) { 1243 m_freem(m0); 1244 return ENOBUFS; 1245 } 1246 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1247 } 1248 } 1249 1250 data = STAILQ_FIRST(&sc->tx_free); 1251 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1252 sc->tx_nfree--; 1253 1254 data->m = m0; 1255 data->ni = ni; 1256 data->rate = rate; 1257 1258 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1259 flags |= RT2573_TX_NEED_ACK; 1260 flags |= RT2573_TX_MORE_FRAG; 1261 1262 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1263 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1264 *(uint16_t *)wh->i_dur = htole16(dur); 1265 } 1266 1267 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1268 1269 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1270 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1271 1272 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1273 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1274 1275 return 0; 1276 } 1277 1278 static void 1279 rum_start(struct ifnet *ifp) 1280 { 1281 struct rum_softc *sc = ifp->if_softc; 1282 struct ieee80211_node *ni; 1283 struct mbuf *m; 1284 1285 RUM_LOCK(sc); 1286 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1287 RUM_UNLOCK(sc); 1288 return; 1289 } 1290 for (;;) { 1291 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1292 if (m == NULL) 1293 break; 1294 if (sc->tx_nfree < RUM_TX_MINFREE) { 1295 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1296 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1297 break; 1298 } 1299 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1300 if (rum_tx_data(sc, m, ni) != 0) { 1301 ieee80211_free_node(ni); 1302 ifp->if_oerrors++; 1303 break; 1304 } 1305 } 1306 RUM_UNLOCK(sc); 1307 } 1308 1309 static int 1310 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1311 { 1312 struct rum_softc *sc = ifp->if_softc; 1313 struct ieee80211com *ic = ifp->if_l2com; 1314 struct ifreq *ifr = (struct ifreq *) data; 1315 int error = 0, startall = 0; 1316 1317 switch (cmd) { 1318 case SIOCSIFFLAGS: 1319 RUM_LOCK(sc); 1320 if (ifp->if_flags & IFF_UP) { 1321 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1322 rum_init_locked(sc); 1323 startall = 1; 1324 } else 1325 rum_setpromisc(sc); 1326 } else { 1327 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1328 rum_stop(sc); 1329 } 1330 RUM_UNLOCK(sc); 1331 if (startall) 1332 ieee80211_start_all(ic); 1333 break; 1334 case SIOCGIFMEDIA: 1335 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1336 break; 1337 case SIOCGIFADDR: 1338 error = ether_ioctl(ifp, cmd, data); 1339 break; 1340 default: 1341 error = EINVAL; 1342 break; 1343 } 1344 return error; 1345 } 1346 1347 static void 1348 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1349 { 1350 struct usb_device_request req; 1351 usb_error_t error; 1352 1353 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1354 req.bRequest = RT2573_READ_EEPROM; 1355 USETW(req.wValue, 0); 1356 USETW(req.wIndex, addr); 1357 USETW(req.wLength, len); 1358 1359 error = rum_do_request(sc, &req, buf); 1360 if (error != 0) { 1361 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1362 usbd_errstr(error)); 1363 } 1364 } 1365 1366 static uint32_t 1367 rum_read(struct rum_softc *sc, uint16_t reg) 1368 { 1369 uint32_t val; 1370 1371 rum_read_multi(sc, reg, &val, sizeof val); 1372 1373 return le32toh(val); 1374 } 1375 1376 static void 1377 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1378 { 1379 struct usb_device_request req; 1380 usb_error_t error; 1381 1382 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1383 req.bRequest = RT2573_READ_MULTI_MAC; 1384 USETW(req.wValue, 0); 1385 USETW(req.wIndex, reg); 1386 USETW(req.wLength, len); 1387 1388 error = rum_do_request(sc, &req, buf); 1389 if (error != 0) { 1390 device_printf(sc->sc_dev, 1391 "could not multi read MAC register: %s\n", 1392 usbd_errstr(error)); 1393 } 1394 } 1395 1396 static usb_error_t 1397 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1398 { 1399 uint32_t tmp = htole32(val); 1400 1401 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1402 } 1403 1404 static usb_error_t 1405 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1406 { 1407 struct usb_device_request req; 1408 usb_error_t error; 1409 1410 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1411 req.bRequest = RT2573_WRITE_MULTI_MAC; 1412 USETW(req.wValue, 0); 1413 USETW(req.wIndex, reg); 1414 USETW(req.wLength, len); 1415 1416 error = rum_do_request(sc, &req, buf); 1417 if (error != 0) { 1418 device_printf(sc->sc_dev, 1419 "could not multi write MAC register: %s\n", 1420 usbd_errstr(error)); 1421 } 1422 return (error); 1423 } 1424 1425 static void 1426 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1427 { 1428 uint32_t tmp; 1429 int ntries; 1430 1431 DPRINTFN(2, "reg=0x%08x\n", reg); 1432 1433 for (ntries = 0; ntries < 100; ntries++) { 1434 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1435 break; 1436 if (rum_pause(sc, hz / 100)) 1437 break; 1438 } 1439 if (ntries == 100) { 1440 device_printf(sc->sc_dev, "could not write to BBP\n"); 1441 return; 1442 } 1443 1444 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1445 rum_write(sc, RT2573_PHY_CSR3, tmp); 1446 } 1447 1448 static uint8_t 1449 rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1450 { 1451 uint32_t val; 1452 int ntries; 1453 1454 DPRINTFN(2, "reg=0x%08x\n", reg); 1455 1456 for (ntries = 0; ntries < 100; ntries++) { 1457 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1458 break; 1459 if (rum_pause(sc, hz / 100)) 1460 break; 1461 } 1462 if (ntries == 100) { 1463 device_printf(sc->sc_dev, "could not read BBP\n"); 1464 return 0; 1465 } 1466 1467 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1468 rum_write(sc, RT2573_PHY_CSR3, val); 1469 1470 for (ntries = 0; ntries < 100; ntries++) { 1471 val = rum_read(sc, RT2573_PHY_CSR3); 1472 if (!(val & RT2573_BBP_BUSY)) 1473 return val & 0xff; 1474 if (rum_pause(sc, hz / 100)) 1475 break; 1476 } 1477 1478 device_printf(sc->sc_dev, "could not read BBP\n"); 1479 return 0; 1480 } 1481 1482 static void 1483 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1484 { 1485 uint32_t tmp; 1486 int ntries; 1487 1488 for (ntries = 0; ntries < 100; ntries++) { 1489 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1490 break; 1491 if (rum_pause(sc, hz / 100)) 1492 break; 1493 } 1494 if (ntries == 100) { 1495 device_printf(sc->sc_dev, "could not write to RF\n"); 1496 return; 1497 } 1498 1499 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1500 (reg & 3); 1501 rum_write(sc, RT2573_PHY_CSR4, tmp); 1502 1503 /* remember last written value in sc */ 1504 sc->rf_regs[reg] = val; 1505 1506 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1507 } 1508 1509 static void 1510 rum_select_antenna(struct rum_softc *sc) 1511 { 1512 uint8_t bbp4, bbp77; 1513 uint32_t tmp; 1514 1515 bbp4 = rum_bbp_read(sc, 4); 1516 bbp77 = rum_bbp_read(sc, 77); 1517 1518 /* TBD */ 1519 1520 /* make sure Rx is disabled before switching antenna */ 1521 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1522 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1523 1524 rum_bbp_write(sc, 4, bbp4); 1525 rum_bbp_write(sc, 77, bbp77); 1526 1527 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1528 } 1529 1530 /* 1531 * Enable multi-rate retries for frames sent at OFDM rates. 1532 * In 802.11b/g mode, allow fallback to CCK rates. 1533 */ 1534 static void 1535 rum_enable_mrr(struct rum_softc *sc) 1536 { 1537 struct ifnet *ifp = sc->sc_ifp; 1538 struct ieee80211com *ic = ifp->if_l2com; 1539 uint32_t tmp; 1540 1541 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1542 1543 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1544 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1545 tmp |= RT2573_MRR_CCK_FALLBACK; 1546 tmp |= RT2573_MRR_ENABLED; 1547 1548 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1549 } 1550 1551 static void 1552 rum_set_txpreamble(struct rum_softc *sc) 1553 { 1554 struct ifnet *ifp = sc->sc_ifp; 1555 struct ieee80211com *ic = ifp->if_l2com; 1556 uint32_t tmp; 1557 1558 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1559 1560 tmp &= ~RT2573_SHORT_PREAMBLE; 1561 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1562 tmp |= RT2573_SHORT_PREAMBLE; 1563 1564 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1565 } 1566 1567 static void 1568 rum_set_basicrates(struct rum_softc *sc) 1569 { 1570 struct ifnet *ifp = sc->sc_ifp; 1571 struct ieee80211com *ic = ifp->if_l2com; 1572 1573 /* update basic rate set */ 1574 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1575 /* 11b basic rates: 1, 2Mbps */ 1576 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1577 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1578 /* 11a basic rates: 6, 12, 24Mbps */ 1579 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1580 } else { 1581 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1582 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1583 } 1584 } 1585 1586 /* 1587 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1588 * driver. 1589 */ 1590 static void 1591 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1592 { 1593 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1594 uint32_t tmp; 1595 1596 /* update all BBP registers that depend on the band */ 1597 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1598 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1599 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1600 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1601 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1602 } 1603 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1604 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1605 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1606 } 1607 1608 sc->bbp17 = bbp17; 1609 rum_bbp_write(sc, 17, bbp17); 1610 rum_bbp_write(sc, 96, bbp96); 1611 rum_bbp_write(sc, 104, bbp104); 1612 1613 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1614 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1615 rum_bbp_write(sc, 75, 0x80); 1616 rum_bbp_write(sc, 86, 0x80); 1617 rum_bbp_write(sc, 88, 0x80); 1618 } 1619 1620 rum_bbp_write(sc, 35, bbp35); 1621 rum_bbp_write(sc, 97, bbp97); 1622 rum_bbp_write(sc, 98, bbp98); 1623 1624 tmp = rum_read(sc, RT2573_PHY_CSR0); 1625 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1626 if (IEEE80211_IS_CHAN_2GHZ(c)) 1627 tmp |= RT2573_PA_PE_2GHZ; 1628 else 1629 tmp |= RT2573_PA_PE_5GHZ; 1630 rum_write(sc, RT2573_PHY_CSR0, tmp); 1631 } 1632 1633 static void 1634 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1635 { 1636 struct ifnet *ifp = sc->sc_ifp; 1637 struct ieee80211com *ic = ifp->if_l2com; 1638 const struct rfprog *rfprog; 1639 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1640 int8_t power; 1641 int i, chan; 1642 1643 chan = ieee80211_chan2ieee(ic, c); 1644 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1645 return; 1646 1647 /* select the appropriate RF settings based on what EEPROM says */ 1648 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1649 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1650 1651 /* find the settings for this channel (we know it exists) */ 1652 for (i = 0; rfprog[i].chan != chan; i++); 1653 1654 power = sc->txpow[i]; 1655 if (power < 0) { 1656 bbp94 += power; 1657 power = 0; 1658 } else if (power > 31) { 1659 bbp94 += power - 31; 1660 power = 31; 1661 } 1662 1663 /* 1664 * If we are switching from the 2GHz band to the 5GHz band or 1665 * vice-versa, BBP registers need to be reprogrammed. 1666 */ 1667 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1668 rum_select_band(sc, c); 1669 rum_select_antenna(sc); 1670 } 1671 ic->ic_curchan = c; 1672 1673 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1674 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1675 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1676 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1677 1678 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1679 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1680 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1681 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1682 1683 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1684 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1685 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1686 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1687 1688 rum_pause(sc, hz / 100); 1689 1690 /* enable smart mode for MIMO-capable RFs */ 1691 bbp3 = rum_bbp_read(sc, 3); 1692 1693 bbp3 &= ~RT2573_SMART_MODE; 1694 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1695 bbp3 |= RT2573_SMART_MODE; 1696 1697 rum_bbp_write(sc, 3, bbp3); 1698 1699 if (bbp94 != RT2573_BBPR94_DEFAULT) 1700 rum_bbp_write(sc, 94, bbp94); 1701 1702 /* give the chip some extra time to do the switchover */ 1703 rum_pause(sc, hz / 100); 1704 } 1705 1706 /* 1707 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1708 * and HostAP operating modes. 1709 */ 1710 static void 1711 rum_enable_tsf_sync(struct rum_softc *sc) 1712 { 1713 struct ifnet *ifp = sc->sc_ifp; 1714 struct ieee80211com *ic = ifp->if_l2com; 1715 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1716 uint32_t tmp; 1717 1718 if (vap->iv_opmode != IEEE80211_M_STA) { 1719 /* 1720 * Change default 16ms TBTT adjustment to 8ms. 1721 * Must be done before enabling beacon generation. 1722 */ 1723 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1724 } 1725 1726 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1727 1728 /* set beacon interval (in 1/16ms unit) */ 1729 tmp |= vap->iv_bss->ni_intval * 16; 1730 1731 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1732 if (vap->iv_opmode == IEEE80211_M_STA) 1733 tmp |= RT2573_TSF_MODE(1); 1734 else 1735 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1736 1737 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1738 } 1739 1740 static void 1741 rum_enable_tsf(struct rum_softc *sc) 1742 { 1743 rum_write(sc, RT2573_TXRX_CSR9, 1744 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1745 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1746 } 1747 1748 static void 1749 rum_update_slot(struct ifnet *ifp) 1750 { 1751 struct rum_softc *sc = ifp->if_softc; 1752 struct ieee80211com *ic = ifp->if_l2com; 1753 uint8_t slottime; 1754 uint32_t tmp; 1755 1756 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1757 1758 tmp = rum_read(sc, RT2573_MAC_CSR9); 1759 tmp = (tmp & ~0xff) | slottime; 1760 rum_write(sc, RT2573_MAC_CSR9, tmp); 1761 1762 DPRINTF("setting slot time to %uus\n", slottime); 1763 } 1764 1765 static void 1766 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1767 { 1768 uint32_t tmp; 1769 1770 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1771 rum_write(sc, RT2573_MAC_CSR4, tmp); 1772 1773 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1774 rum_write(sc, RT2573_MAC_CSR5, tmp); 1775 } 1776 1777 static void 1778 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1779 { 1780 uint32_t tmp; 1781 1782 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1783 rum_write(sc, RT2573_MAC_CSR2, tmp); 1784 1785 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1786 rum_write(sc, RT2573_MAC_CSR3, tmp); 1787 } 1788 1789 static void 1790 rum_setpromisc(struct rum_softc *sc) 1791 { 1792 struct ifnet *ifp = sc->sc_ifp; 1793 uint32_t tmp; 1794 1795 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1796 1797 tmp &= ~RT2573_DROP_NOT_TO_ME; 1798 if (!(ifp->if_flags & IFF_PROMISC)) 1799 tmp |= RT2573_DROP_NOT_TO_ME; 1800 1801 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1802 1803 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1804 "entering" : "leaving"); 1805 } 1806 1807 static void 1808 rum_update_promisc(struct ifnet *ifp) 1809 { 1810 struct rum_softc *sc = ifp->if_softc; 1811 1812 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1813 return; 1814 1815 RUM_LOCK(sc); 1816 rum_setpromisc(sc); 1817 RUM_UNLOCK(sc); 1818 } 1819 1820 static void 1821 rum_update_mcast(struct ifnet *ifp) 1822 { 1823 1824 /* XXX do nothing? */ 1825 } 1826 1827 static const char * 1828 rum_get_rf(int rev) 1829 { 1830 switch (rev) { 1831 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1832 case RT2573_RF_2528: return "RT2528"; 1833 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1834 case RT2573_RF_5226: return "RT5226"; 1835 default: return "unknown"; 1836 } 1837 } 1838 1839 static void 1840 rum_read_eeprom(struct rum_softc *sc) 1841 { 1842 uint16_t val; 1843 #ifdef RUM_DEBUG 1844 int i; 1845 #endif 1846 1847 /* read MAC address */ 1848 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1849 1850 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1851 val = le16toh(val); 1852 sc->rf_rev = (val >> 11) & 0x1f; 1853 sc->hw_radio = (val >> 10) & 0x1; 1854 sc->rx_ant = (val >> 4) & 0x3; 1855 sc->tx_ant = (val >> 2) & 0x3; 1856 sc->nb_ant = val & 0x3; 1857 1858 DPRINTF("RF revision=%d\n", sc->rf_rev); 1859 1860 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1861 val = le16toh(val); 1862 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1863 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1864 1865 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1866 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1867 1868 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1869 val = le16toh(val); 1870 if ((val & 0xff) != 0xff) 1871 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1872 1873 /* Only [-10, 10] is valid */ 1874 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1875 sc->rssi_2ghz_corr = 0; 1876 1877 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1878 val = le16toh(val); 1879 if ((val & 0xff) != 0xff) 1880 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1881 1882 /* Only [-10, 10] is valid */ 1883 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1884 sc->rssi_5ghz_corr = 0; 1885 1886 if (sc->ext_2ghz_lna) 1887 sc->rssi_2ghz_corr -= 14; 1888 if (sc->ext_5ghz_lna) 1889 sc->rssi_5ghz_corr -= 14; 1890 1891 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1892 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1893 1894 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1895 val = le16toh(val); 1896 if ((val & 0xff) != 0xff) 1897 sc->rffreq = val & 0xff; 1898 1899 DPRINTF("RF freq=%d\n", sc->rffreq); 1900 1901 /* read Tx power for all a/b/g channels */ 1902 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1903 /* XXX default Tx power for 802.11a channels */ 1904 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1905 #ifdef RUM_DEBUG 1906 for (i = 0; i < 14; i++) 1907 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1908 #endif 1909 1910 /* read default values for BBP registers */ 1911 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1912 #ifdef RUM_DEBUG 1913 for (i = 0; i < 14; i++) { 1914 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1915 continue; 1916 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1917 sc->bbp_prom[i].val); 1918 } 1919 #endif 1920 } 1921 1922 static int 1923 rum_bbp_init(struct rum_softc *sc) 1924 { 1925 #define N(a) (sizeof (a) / sizeof ((a)[0])) 1926 int i, ntries; 1927 1928 /* wait for BBP to be ready */ 1929 for (ntries = 0; ntries < 100; ntries++) { 1930 const uint8_t val = rum_bbp_read(sc, 0); 1931 if (val != 0 && val != 0xff) 1932 break; 1933 if (rum_pause(sc, hz / 100)) 1934 break; 1935 } 1936 if (ntries == 100) { 1937 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1938 return EIO; 1939 } 1940 1941 /* initialize BBP registers to default values */ 1942 for (i = 0; i < N(rum_def_bbp); i++) 1943 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1944 1945 /* write vendor-specific BBP values (from EEPROM) */ 1946 for (i = 0; i < 16; i++) { 1947 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1948 continue; 1949 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1950 } 1951 1952 return 0; 1953 #undef N 1954 } 1955 1956 static void 1957 rum_init_locked(struct rum_softc *sc) 1958 { 1959 #define N(a) (sizeof (a) / sizeof ((a)[0])) 1960 struct ifnet *ifp = sc->sc_ifp; 1961 struct ieee80211com *ic = ifp->if_l2com; 1962 uint32_t tmp; 1963 usb_error_t error; 1964 int i, ntries; 1965 1966 RUM_LOCK_ASSERT(sc, MA_OWNED); 1967 1968 rum_stop(sc); 1969 1970 /* initialize MAC registers to default values */ 1971 for (i = 0; i < N(rum_def_mac); i++) 1972 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1973 1974 /* set host ready */ 1975 rum_write(sc, RT2573_MAC_CSR1, 3); 1976 rum_write(sc, RT2573_MAC_CSR1, 0); 1977 1978 /* wait for BBP/RF to wakeup */ 1979 for (ntries = 0; ntries < 100; ntries++) { 1980 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1981 break; 1982 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1983 if (rum_pause(sc, hz / 100)) 1984 break; 1985 } 1986 if (ntries == 100) { 1987 device_printf(sc->sc_dev, 1988 "timeout waiting for BBP/RF to wakeup\n"); 1989 goto fail; 1990 } 1991 1992 if ((error = rum_bbp_init(sc)) != 0) 1993 goto fail; 1994 1995 /* select default channel */ 1996 rum_select_band(sc, ic->ic_curchan); 1997 rum_select_antenna(sc); 1998 rum_set_chan(sc, ic->ic_curchan); 1999 2000 /* clear STA registers */ 2001 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2002 2003 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2004 2005 /* initialize ASIC */ 2006 rum_write(sc, RT2573_MAC_CSR1, 4); 2007 2008 /* 2009 * Allocate Tx and Rx xfer queues. 2010 */ 2011 rum_setup_tx_list(sc); 2012 2013 /* update Rx filter */ 2014 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2015 2016 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2017 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2018 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2019 RT2573_DROP_ACKCTS; 2020 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2021 tmp |= RT2573_DROP_TODS; 2022 if (!(ifp->if_flags & IFF_PROMISC)) 2023 tmp |= RT2573_DROP_NOT_TO_ME; 2024 } 2025 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2026 2027 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2028 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2029 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2030 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2031 return; 2032 2033 fail: rum_stop(sc); 2034 #undef N 2035 } 2036 2037 static void 2038 rum_init(void *priv) 2039 { 2040 struct rum_softc *sc = priv; 2041 struct ifnet *ifp = sc->sc_ifp; 2042 struct ieee80211com *ic = ifp->if_l2com; 2043 2044 RUM_LOCK(sc); 2045 rum_init_locked(sc); 2046 RUM_UNLOCK(sc); 2047 2048 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2049 ieee80211_start_all(ic); /* start all vap's */ 2050 } 2051 2052 static void 2053 rum_stop(struct rum_softc *sc) 2054 { 2055 struct ifnet *ifp = sc->sc_ifp; 2056 uint32_t tmp; 2057 2058 RUM_LOCK_ASSERT(sc, MA_OWNED); 2059 2060 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2061 2062 RUM_UNLOCK(sc); 2063 2064 /* 2065 * Drain the USB transfers, if not already drained: 2066 */ 2067 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2068 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2069 2070 RUM_LOCK(sc); 2071 2072 rum_unsetup_tx_list(sc); 2073 2074 /* disable Rx */ 2075 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2076 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2077 2078 /* reset ASIC */ 2079 rum_write(sc, RT2573_MAC_CSR1, 3); 2080 rum_write(sc, RT2573_MAC_CSR1, 0); 2081 } 2082 2083 static void 2084 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2085 { 2086 struct usb_device_request req; 2087 uint16_t reg = RT2573_MCU_CODE_BASE; 2088 usb_error_t err; 2089 2090 /* copy firmware image into NIC */ 2091 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2092 err = rum_write(sc, reg, UGETDW(ucode)); 2093 if (err) { 2094 /* firmware already loaded ? */ 2095 device_printf(sc->sc_dev, "Firmware load " 2096 "failure! (ignored)\n"); 2097 break; 2098 } 2099 } 2100 2101 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2102 req.bRequest = RT2573_MCU_CNTL; 2103 USETW(req.wValue, RT2573_MCU_RUN); 2104 USETW(req.wIndex, 0); 2105 USETW(req.wLength, 0); 2106 2107 err = rum_do_request(sc, &req, NULL); 2108 if (err != 0) { 2109 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2110 usbd_errstr(err)); 2111 } 2112 2113 /* give the chip some time to boot */ 2114 rum_pause(sc, hz / 8); 2115 } 2116 2117 static int 2118 rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2119 { 2120 struct ieee80211com *ic = vap->iv_ic; 2121 const struct ieee80211_txparam *tp; 2122 struct rum_tx_desc desc; 2123 struct mbuf *m0; 2124 2125 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2126 if (m0 == NULL) { 2127 return ENOBUFS; 2128 } 2129 2130 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2131 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2132 m0->m_pkthdr.len, tp->mgmtrate); 2133 2134 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2135 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2136 2137 /* copy beacon header and payload into NIC memory */ 2138 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2139 m0->m_pkthdr.len); 2140 2141 m_freem(m0); 2142 2143 return 0; 2144 } 2145 2146 static int 2147 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2148 const struct ieee80211_bpf_params *params) 2149 { 2150 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2151 struct rum_softc *sc = ifp->if_softc; 2152 2153 RUM_LOCK(sc); 2154 /* prevent management frames from being sent if we're not ready */ 2155 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2156 RUM_UNLOCK(sc); 2157 m_freem(m); 2158 ieee80211_free_node(ni); 2159 return ENETDOWN; 2160 } 2161 if (sc->tx_nfree < RUM_TX_MINFREE) { 2162 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2163 RUM_UNLOCK(sc); 2164 m_freem(m); 2165 ieee80211_free_node(ni); 2166 return EIO; 2167 } 2168 2169 ifp->if_opackets++; 2170 2171 if (params == NULL) { 2172 /* 2173 * Legacy path; interpret frame contents to decide 2174 * precisely how to send the frame. 2175 */ 2176 if (rum_tx_mgt(sc, m, ni) != 0) 2177 goto bad; 2178 } else { 2179 /* 2180 * Caller supplied explicit parameters to use in 2181 * sending the frame. 2182 */ 2183 if (rum_tx_raw(sc, m, ni, params) != 0) 2184 goto bad; 2185 } 2186 RUM_UNLOCK(sc); 2187 2188 return 0; 2189 bad: 2190 ifp->if_oerrors++; 2191 RUM_UNLOCK(sc); 2192 ieee80211_free_node(ni); 2193 return EIO; 2194 } 2195 2196 static void 2197 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2198 { 2199 struct ieee80211vap *vap = ni->ni_vap; 2200 struct rum_vap *rvp = RUM_VAP(vap); 2201 2202 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2203 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2204 2205 ieee80211_ratectl_node_init(ni); 2206 2207 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2208 } 2209 2210 static void 2211 rum_ratectl_timeout(void *arg) 2212 { 2213 struct rum_vap *rvp = arg; 2214 struct ieee80211vap *vap = &rvp->vap; 2215 struct ieee80211com *ic = vap->iv_ic; 2216 2217 ieee80211_runtask(ic, &rvp->ratectl_task); 2218 } 2219 2220 static void 2221 rum_ratectl_task(void *arg, int pending) 2222 { 2223 struct rum_vap *rvp = arg; 2224 struct ieee80211vap *vap = &rvp->vap; 2225 struct ieee80211com *ic = vap->iv_ic; 2226 struct ifnet *ifp = ic->ic_ifp; 2227 struct rum_softc *sc = ifp->if_softc; 2228 struct ieee80211_node *ni = vap->iv_bss; 2229 int ok, fail; 2230 int sum, retrycnt; 2231 2232 RUM_LOCK(sc); 2233 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2234 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2235 2236 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2237 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2238 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2239 sum = ok+fail; 2240 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2241 2242 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2243 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2244 2245 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2246 2247 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2248 RUM_UNLOCK(sc); 2249 } 2250 2251 static void 2252 rum_scan_start(struct ieee80211com *ic) 2253 { 2254 struct ifnet *ifp = ic->ic_ifp; 2255 struct rum_softc *sc = ifp->if_softc; 2256 uint32_t tmp; 2257 2258 RUM_LOCK(sc); 2259 /* abort TSF synchronization */ 2260 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2261 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2262 rum_set_bssid(sc, ifp->if_broadcastaddr); 2263 RUM_UNLOCK(sc); 2264 2265 } 2266 2267 static void 2268 rum_scan_end(struct ieee80211com *ic) 2269 { 2270 struct rum_softc *sc = ic->ic_ifp->if_softc; 2271 2272 RUM_LOCK(sc); 2273 rum_enable_tsf_sync(sc); 2274 rum_set_bssid(sc, sc->sc_bssid); 2275 RUM_UNLOCK(sc); 2276 2277 } 2278 2279 static void 2280 rum_set_channel(struct ieee80211com *ic) 2281 { 2282 struct rum_softc *sc = ic->ic_ifp->if_softc; 2283 2284 RUM_LOCK(sc); 2285 rum_set_chan(sc, ic->ic_curchan); 2286 RUM_UNLOCK(sc); 2287 } 2288 2289 static int 2290 rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2291 { 2292 struct ifnet *ifp = sc->sc_ifp; 2293 struct ieee80211com *ic = ifp->if_l2com; 2294 int lna, agc, rssi; 2295 2296 lna = (raw >> 5) & 0x3; 2297 agc = raw & 0x1f; 2298 2299 if (lna == 0) { 2300 /* 2301 * No RSSI mapping 2302 * 2303 * NB: Since RSSI is relative to noise floor, -1 is 2304 * adequate for caller to know error happened. 2305 */ 2306 return -1; 2307 } 2308 2309 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2310 2311 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2312 rssi += sc->rssi_2ghz_corr; 2313 2314 if (lna == 1) 2315 rssi -= 64; 2316 else if (lna == 2) 2317 rssi -= 74; 2318 else if (lna == 3) 2319 rssi -= 90; 2320 } else { 2321 rssi += sc->rssi_5ghz_corr; 2322 2323 if (!sc->ext_5ghz_lna && lna != 1) 2324 rssi += 4; 2325 2326 if (lna == 1) 2327 rssi -= 64; 2328 else if (lna == 2) 2329 rssi -= 86; 2330 else if (lna == 3) 2331 rssi -= 100; 2332 } 2333 return rssi; 2334 } 2335 2336 static int 2337 rum_pause(struct rum_softc *sc, int timeout) 2338 { 2339 2340 usb_pause_mtx(&sc->sc_mtx, timeout); 2341 return (0); 2342 } 2343 2344 static device_method_t rum_methods[] = { 2345 /* Device interface */ 2346 DEVMETHOD(device_probe, rum_match), 2347 DEVMETHOD(device_attach, rum_attach), 2348 DEVMETHOD(device_detach, rum_detach), 2349 2350 { 0, 0 } 2351 }; 2352 2353 static driver_t rum_driver = { 2354 .name = "rum", 2355 .methods = rum_methods, 2356 .size = sizeof(struct rum_softc), 2357 }; 2358 2359 static devclass_t rum_devclass; 2360 2361 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2362