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 | IEEE80211_C_RATECTL /* use ratectl */ 501 ; 502 503 bands = 0; 504 setbit(&bands, IEEE80211_MODE_11B); 505 setbit(&bands, IEEE80211_MODE_11G); 506 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 507 setbit(&bands, IEEE80211_MODE_11A); 508 ieee80211_init_channels(ic, NULL, &bands); 509 510 ieee80211_ifattach(ic, sc->sc_bssid); 511 ic->ic_update_promisc = rum_update_promisc; 512 ic->ic_raw_xmit = rum_raw_xmit; 513 ic->ic_scan_start = rum_scan_start; 514 ic->ic_scan_end = rum_scan_end; 515 ic->ic_set_channel = rum_set_channel; 516 517 ic->ic_vap_create = rum_vap_create; 518 ic->ic_vap_delete = rum_vap_delete; 519 ic->ic_update_mcast = rum_update_mcast; 520 521 ieee80211_radiotap_attach(ic, 522 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 523 RT2573_TX_RADIOTAP_PRESENT, 524 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 525 RT2573_RX_RADIOTAP_PRESENT); 526 527 if (bootverbose) 528 ieee80211_announce(ic); 529 530 return (0); 531 532 detach: 533 rum_detach(self); 534 return (ENXIO); /* failure */ 535 } 536 537 static int 538 rum_detach(device_t self) 539 { 540 struct rum_softc *sc = device_get_softc(self); 541 struct ifnet *ifp = sc->sc_ifp; 542 struct ieee80211com *ic; 543 544 /* stop all USB transfers */ 545 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 546 547 /* free TX list, if any */ 548 RUM_LOCK(sc); 549 rum_unsetup_tx_list(sc); 550 RUM_UNLOCK(sc); 551 552 if (ifp) { 553 ic = ifp->if_l2com; 554 ieee80211_ifdetach(ic); 555 if_free(ifp); 556 } 557 mtx_destroy(&sc->sc_mtx); 558 559 return (0); 560 } 561 562 static usb_error_t 563 rum_do_request(struct rum_softc *sc, 564 struct usb_device_request *req, void *data) 565 { 566 usb_error_t err; 567 int ntries = 10; 568 569 while (ntries--) { 570 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 571 req, data, 0, NULL, 250 /* ms */); 572 if (err == 0) 573 break; 574 575 DPRINTFN(1, "Control request failed, %s (retrying)\n", 576 usbd_errstr(err)); 577 if (rum_pause(sc, hz / 100)) 578 break; 579 } 580 return (err); 581 } 582 583 static struct ieee80211vap * 584 rum_vap_create(struct ieee80211com *ic, 585 const char name[IFNAMSIZ], int unit, int opmode, int flags, 586 const uint8_t bssid[IEEE80211_ADDR_LEN], 587 const uint8_t mac[IEEE80211_ADDR_LEN]) 588 { 589 struct rum_softc *sc = ic->ic_ifp->if_softc; 590 struct rum_vap *rvp; 591 struct ieee80211vap *vap; 592 593 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 594 return NULL; 595 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 596 M_80211_VAP, M_NOWAIT | M_ZERO); 597 if (rvp == NULL) 598 return NULL; 599 vap = &rvp->vap; 600 /* enable s/w bmiss handling for sta mode */ 601 ieee80211_vap_setup(ic, vap, name, unit, opmode, 602 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 603 604 /* override state transition machine */ 605 rvp->newstate = vap->iv_newstate; 606 vap->iv_newstate = rum_newstate; 607 608 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 609 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 610 ieee80211_ratectl_init(vap); 611 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 612 /* complete setup */ 613 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 614 ic->ic_opmode = opmode; 615 return vap; 616 } 617 618 static void 619 rum_vap_delete(struct ieee80211vap *vap) 620 { 621 struct rum_vap *rvp = RUM_VAP(vap); 622 struct ieee80211com *ic = vap->iv_ic; 623 624 usb_callout_drain(&rvp->ratectl_ch); 625 ieee80211_draintask(ic, &rvp->ratectl_task); 626 ieee80211_ratectl_deinit(vap); 627 ieee80211_vap_detach(vap); 628 free(rvp, M_80211_VAP); 629 } 630 631 static void 632 rum_tx_free(struct rum_tx_data *data, int txerr) 633 { 634 struct rum_softc *sc = data->sc; 635 636 if (data->m != NULL) { 637 if (data->m->m_flags & M_TXCB) 638 ieee80211_process_callback(data->ni, data->m, 639 txerr ? ETIMEDOUT : 0); 640 m_freem(data->m); 641 data->m = NULL; 642 643 ieee80211_free_node(data->ni); 644 data->ni = NULL; 645 } 646 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 647 sc->tx_nfree++; 648 } 649 650 static void 651 rum_setup_tx_list(struct rum_softc *sc) 652 { 653 struct rum_tx_data *data; 654 int i; 655 656 sc->tx_nfree = 0; 657 STAILQ_INIT(&sc->tx_q); 658 STAILQ_INIT(&sc->tx_free); 659 660 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 661 data = &sc->tx_data[i]; 662 663 data->sc = sc; 664 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 665 sc->tx_nfree++; 666 } 667 } 668 669 static void 670 rum_unsetup_tx_list(struct rum_softc *sc) 671 { 672 struct rum_tx_data *data; 673 int i; 674 675 /* make sure any subsequent use of the queues will fail */ 676 sc->tx_nfree = 0; 677 STAILQ_INIT(&sc->tx_q); 678 STAILQ_INIT(&sc->tx_free); 679 680 /* free up all node references and mbufs */ 681 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 682 data = &sc->tx_data[i]; 683 684 if (data->m != NULL) { 685 m_freem(data->m); 686 data->m = NULL; 687 } 688 if (data->ni != NULL) { 689 ieee80211_free_node(data->ni); 690 data->ni = NULL; 691 } 692 } 693 } 694 695 static int 696 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 697 { 698 struct rum_vap *rvp = RUM_VAP(vap); 699 struct ieee80211com *ic = vap->iv_ic; 700 struct rum_softc *sc = ic->ic_ifp->if_softc; 701 const struct ieee80211_txparam *tp; 702 enum ieee80211_state ostate; 703 struct ieee80211_node *ni; 704 uint32_t tmp; 705 706 ostate = vap->iv_state; 707 DPRINTF("%s -> %s\n", 708 ieee80211_state_name[ostate], 709 ieee80211_state_name[nstate]); 710 711 IEEE80211_UNLOCK(ic); 712 RUM_LOCK(sc); 713 usb_callout_stop(&rvp->ratectl_ch); 714 715 switch (nstate) { 716 case IEEE80211_S_INIT: 717 if (ostate == IEEE80211_S_RUN) { 718 /* abort TSF synchronization */ 719 tmp = rum_read(sc, RT2573_TXRX_CSR9); 720 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 721 } 722 break; 723 724 case IEEE80211_S_RUN: 725 ni = vap->iv_bss; 726 727 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 728 rum_update_slot(ic->ic_ifp); 729 rum_enable_mrr(sc); 730 rum_set_txpreamble(sc); 731 rum_set_basicrates(sc); 732 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 733 rum_set_bssid(sc, sc->sc_bssid); 734 } 735 736 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 737 vap->iv_opmode == IEEE80211_M_IBSS) 738 rum_prepare_beacon(sc, vap); 739 740 if (vap->iv_opmode != IEEE80211_M_MONITOR) 741 rum_enable_tsf_sync(sc); 742 else 743 rum_enable_tsf(sc); 744 745 /* enable automatic rate adaptation */ 746 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 747 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 748 rum_ratectl_start(sc, ni); 749 break; 750 default: 751 break; 752 } 753 RUM_UNLOCK(sc); 754 IEEE80211_LOCK(ic); 755 return (rvp->newstate(vap, nstate, arg)); 756 } 757 758 static void 759 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 760 { 761 struct rum_softc *sc = usbd_xfer_softc(xfer); 762 struct ifnet *ifp = sc->sc_ifp; 763 struct ieee80211vap *vap; 764 struct rum_tx_data *data; 765 struct mbuf *m; 766 struct usb_page_cache *pc; 767 unsigned int len; 768 int actlen, sumlen; 769 770 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 771 772 switch (USB_GET_STATE(xfer)) { 773 case USB_ST_TRANSFERRED: 774 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 775 776 /* free resources */ 777 data = usbd_xfer_get_priv(xfer); 778 rum_tx_free(data, 0); 779 usbd_xfer_set_priv(xfer, NULL); 780 781 ifp->if_opackets++; 782 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 783 784 /* FALLTHROUGH */ 785 case USB_ST_SETUP: 786 tr_setup: 787 data = STAILQ_FIRST(&sc->tx_q); 788 if (data) { 789 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 790 m = data->m; 791 792 if (m->m_pkthdr.len > (MCLBYTES + RT2573_TX_DESC_SIZE)) { 793 DPRINTFN(0, "data overflow, %u bytes\n", 794 m->m_pkthdr.len); 795 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 796 } 797 pc = usbd_xfer_get_frame(xfer, 0); 798 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 799 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 800 m->m_pkthdr.len); 801 802 vap = data->ni->ni_vap; 803 if (ieee80211_radiotap_active_vap(vap)) { 804 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 805 806 tap->wt_flags = 0; 807 tap->wt_rate = data->rate; 808 tap->wt_antenna = sc->tx_ant; 809 810 ieee80211_radiotap_tx(vap, m); 811 } 812 813 /* align end on a 4-bytes boundary */ 814 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 815 if ((len % 64) == 0) 816 len += 4; 817 818 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 819 m->m_pkthdr.len, len); 820 821 usbd_xfer_set_frame_len(xfer, 0, len); 822 usbd_xfer_set_priv(xfer, data); 823 824 usbd_transfer_submit(xfer); 825 } 826 RUM_UNLOCK(sc); 827 rum_start(ifp); 828 RUM_LOCK(sc); 829 break; 830 831 default: /* Error */ 832 DPRINTFN(11, "transfer error, %s\n", 833 usbd_errstr(error)); 834 835 ifp->if_oerrors++; 836 data = usbd_xfer_get_priv(xfer); 837 if (data != NULL) { 838 rum_tx_free(data, error); 839 usbd_xfer_set_priv(xfer, NULL); 840 } 841 842 if (error != USB_ERR_CANCELLED) { 843 if (error == USB_ERR_TIMEOUT) 844 device_printf(sc->sc_dev, "device timeout\n"); 845 846 /* 847 * Try to clear stall first, also if other 848 * errors occur, hence clearing stall 849 * introduces a 50 ms delay: 850 */ 851 usbd_xfer_set_stall(xfer); 852 goto tr_setup; 853 } 854 break; 855 } 856 } 857 858 static void 859 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 860 { 861 struct rum_softc *sc = usbd_xfer_softc(xfer); 862 struct ifnet *ifp = sc->sc_ifp; 863 struct ieee80211com *ic = ifp->if_l2com; 864 struct ieee80211_node *ni; 865 struct mbuf *m = NULL; 866 struct usb_page_cache *pc; 867 uint32_t flags; 868 uint8_t rssi = 0; 869 int len; 870 871 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 872 873 switch (USB_GET_STATE(xfer)) { 874 case USB_ST_TRANSFERRED: 875 876 DPRINTFN(15, "rx done, actlen=%d\n", len); 877 878 if (len < RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN) { 879 DPRINTF("%s: xfer too short %d\n", 880 device_get_nameunit(sc->sc_dev), len); 881 ifp->if_ierrors++; 882 goto tr_setup; 883 } 884 885 len -= RT2573_RX_DESC_SIZE; 886 pc = usbd_xfer_get_frame(xfer, 0); 887 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 888 889 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 890 flags = le32toh(sc->sc_rx_desc.flags); 891 if (flags & RT2573_RX_CRC_ERROR) { 892 /* 893 * This should not happen since we did not 894 * request to receive those frames when we 895 * filled RUM_TXRX_CSR2: 896 */ 897 DPRINTFN(5, "PHY or CRC error\n"); 898 ifp->if_ierrors++; 899 goto tr_setup; 900 } 901 902 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 903 if (m == NULL) { 904 DPRINTF("could not allocate mbuf\n"); 905 ifp->if_ierrors++; 906 goto tr_setup; 907 } 908 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 909 mtod(m, uint8_t *), len); 910 911 /* finalize mbuf */ 912 m->m_pkthdr.rcvif = ifp; 913 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 914 915 if (ieee80211_radiotap_active(ic)) { 916 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 917 918 /* XXX read tsf */ 919 tap->wr_flags = 0; 920 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 921 (flags & RT2573_RX_OFDM) ? 922 IEEE80211_T_OFDM : IEEE80211_T_CCK); 923 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 924 tap->wr_antnoise = RT2573_NOISE_FLOOR; 925 tap->wr_antenna = sc->rx_ant; 926 } 927 /* FALLTHROUGH */ 928 case USB_ST_SETUP: 929 tr_setup: 930 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 931 usbd_transfer_submit(xfer); 932 933 /* 934 * At the end of a USB callback it is always safe to unlock 935 * the private mutex of a device! That is why we do the 936 * "ieee80211_input" here, and not some lines up! 937 */ 938 RUM_UNLOCK(sc); 939 if (m) { 940 ni = ieee80211_find_rxnode(ic, 941 mtod(m, struct ieee80211_frame_min *)); 942 if (ni != NULL) { 943 (void) ieee80211_input(ni, m, rssi, 944 RT2573_NOISE_FLOOR); 945 ieee80211_free_node(ni); 946 } else 947 (void) ieee80211_input_all(ic, m, rssi, 948 RT2573_NOISE_FLOOR); 949 } 950 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 951 !IFQ_IS_EMPTY(&ifp->if_snd)) 952 rum_start(ifp); 953 RUM_LOCK(sc); 954 return; 955 956 default: /* Error */ 957 if (error != USB_ERR_CANCELLED) { 958 /* try to clear stall first */ 959 usbd_xfer_set_stall(xfer); 960 goto tr_setup; 961 } 962 return; 963 } 964 } 965 966 static uint8_t 967 rum_plcp_signal(int rate) 968 { 969 switch (rate) { 970 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 971 case 12: return 0xb; 972 case 18: return 0xf; 973 case 24: return 0xa; 974 case 36: return 0xe; 975 case 48: return 0x9; 976 case 72: return 0xd; 977 case 96: return 0x8; 978 case 108: return 0xc; 979 980 /* CCK rates (NB: not IEEE std, device-specific) */ 981 case 2: return 0x0; 982 case 4: return 0x1; 983 case 11: return 0x2; 984 case 22: return 0x3; 985 } 986 return 0xff; /* XXX unsupported/unknown rate */ 987 } 988 989 static void 990 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 991 uint32_t flags, uint16_t xflags, int len, int rate) 992 { 993 struct ifnet *ifp = sc->sc_ifp; 994 struct ieee80211com *ic = ifp->if_l2com; 995 uint16_t plcp_length; 996 int remainder; 997 998 desc->flags = htole32(flags); 999 desc->flags |= htole32(RT2573_TX_VALID); 1000 desc->flags |= htole32(len << 16); 1001 1002 desc->xflags = htole16(xflags); 1003 1004 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1005 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1006 1007 /* setup PLCP fields */ 1008 desc->plcp_signal = rum_plcp_signal(rate); 1009 desc->plcp_service = 4; 1010 1011 len += IEEE80211_CRC_LEN; 1012 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1013 desc->flags |= htole32(RT2573_TX_OFDM); 1014 1015 plcp_length = len & 0xfff; 1016 desc->plcp_length_hi = plcp_length >> 6; 1017 desc->plcp_length_lo = plcp_length & 0x3f; 1018 } else { 1019 plcp_length = (16 * len + rate - 1) / rate; 1020 if (rate == 22) { 1021 remainder = (16 * len) % 22; 1022 if (remainder != 0 && remainder < 7) 1023 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1024 } 1025 desc->plcp_length_hi = plcp_length >> 8; 1026 desc->plcp_length_lo = plcp_length & 0xff; 1027 1028 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1029 desc->plcp_signal |= 0x08; 1030 } 1031 } 1032 1033 static int 1034 rum_sendprot(struct rum_softc *sc, 1035 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1036 { 1037 struct ieee80211com *ic = ni->ni_ic; 1038 const struct ieee80211_frame *wh; 1039 struct rum_tx_data *data; 1040 struct mbuf *mprot; 1041 int protrate, ackrate, pktlen, flags, isshort; 1042 uint16_t dur; 1043 1044 RUM_LOCK_ASSERT(sc, MA_OWNED); 1045 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1046 ("protection %d", prot)); 1047 1048 wh = mtod(m, const struct ieee80211_frame *); 1049 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1050 1051 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1052 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1053 1054 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1055 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1056 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1057 flags = RT2573_TX_MORE_FRAG; 1058 if (prot == IEEE80211_PROT_RTSCTS) { 1059 /* NB: CTS is the same size as an ACK */ 1060 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1061 flags |= RT2573_TX_NEED_ACK; 1062 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1063 } else { 1064 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1065 } 1066 if (mprot == NULL) { 1067 /* XXX stat + msg */ 1068 return (ENOBUFS); 1069 } 1070 data = STAILQ_FIRST(&sc->tx_free); 1071 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1072 sc->tx_nfree--; 1073 1074 data->m = mprot; 1075 data->ni = ieee80211_ref_node(ni); 1076 data->rate = protrate; 1077 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1078 1079 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1080 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1081 1082 return 0; 1083 } 1084 1085 static int 1086 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1087 { 1088 struct ieee80211vap *vap = ni->ni_vap; 1089 struct ifnet *ifp = sc->sc_ifp; 1090 struct ieee80211com *ic = ifp->if_l2com; 1091 struct rum_tx_data *data; 1092 struct ieee80211_frame *wh; 1093 const struct ieee80211_txparam *tp; 1094 struct ieee80211_key *k; 1095 uint32_t flags = 0; 1096 uint16_t dur; 1097 1098 RUM_LOCK_ASSERT(sc, MA_OWNED); 1099 1100 data = STAILQ_FIRST(&sc->tx_free); 1101 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1102 sc->tx_nfree--; 1103 1104 wh = mtod(m0, struct ieee80211_frame *); 1105 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1106 k = ieee80211_crypto_encap(ni, m0); 1107 if (k == NULL) { 1108 m_freem(m0); 1109 return ENOBUFS; 1110 } 1111 wh = mtod(m0, struct ieee80211_frame *); 1112 } 1113 1114 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1115 1116 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1117 flags |= RT2573_TX_NEED_ACK; 1118 1119 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1120 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1121 *(uint16_t *)wh->i_dur = htole16(dur); 1122 1123 /* tell hardware to add timestamp for probe responses */ 1124 if ((wh->i_fc[0] & 1125 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1126 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1127 flags |= RT2573_TX_TIMESTAMP; 1128 } 1129 1130 data->m = m0; 1131 data->ni = ni; 1132 data->rate = tp->mgmtrate; 1133 1134 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1135 1136 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1137 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1138 1139 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1140 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1141 1142 return (0); 1143 } 1144 1145 static int 1146 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1147 const struct ieee80211_bpf_params *params) 1148 { 1149 struct ieee80211com *ic = ni->ni_ic; 1150 struct rum_tx_data *data; 1151 uint32_t flags; 1152 int rate, error; 1153 1154 RUM_LOCK_ASSERT(sc, MA_OWNED); 1155 KASSERT(params != NULL, ("no raw xmit params")); 1156 1157 rate = params->ibp_rate0; 1158 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1159 m_freem(m0); 1160 return EINVAL; 1161 } 1162 flags = 0; 1163 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1164 flags |= RT2573_TX_NEED_ACK; 1165 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1166 error = rum_sendprot(sc, m0, ni, 1167 params->ibp_flags & IEEE80211_BPF_RTS ? 1168 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1169 rate); 1170 if (error || sc->tx_nfree == 0) { 1171 m_freem(m0); 1172 return ENOBUFS; 1173 } 1174 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1175 } 1176 1177 data = STAILQ_FIRST(&sc->tx_free); 1178 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1179 sc->tx_nfree--; 1180 1181 data->m = m0; 1182 data->ni = ni; 1183 data->rate = rate; 1184 1185 /* XXX need to setup descriptor ourself */ 1186 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1187 1188 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1189 m0->m_pkthdr.len, rate); 1190 1191 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1192 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1193 1194 return 0; 1195 } 1196 1197 static int 1198 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1199 { 1200 struct ieee80211vap *vap = ni->ni_vap; 1201 struct ifnet *ifp = sc->sc_ifp; 1202 struct ieee80211com *ic = ifp->if_l2com; 1203 struct rum_tx_data *data; 1204 struct ieee80211_frame *wh; 1205 const struct ieee80211_txparam *tp; 1206 struct ieee80211_key *k; 1207 uint32_t flags = 0; 1208 uint16_t dur; 1209 int error, rate; 1210 1211 RUM_LOCK_ASSERT(sc, MA_OWNED); 1212 1213 wh = mtod(m0, struct ieee80211_frame *); 1214 1215 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1216 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1217 rate = tp->mcastrate; 1218 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1219 rate = tp->ucastrate; 1220 else 1221 rate = ni->ni_txrate; 1222 1223 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1224 k = ieee80211_crypto_encap(ni, m0); 1225 if (k == NULL) { 1226 m_freem(m0); 1227 return ENOBUFS; 1228 } 1229 1230 /* packet header may have moved, reset our local pointer */ 1231 wh = mtod(m0, struct ieee80211_frame *); 1232 } 1233 1234 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1235 int prot = IEEE80211_PROT_NONE; 1236 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1237 prot = IEEE80211_PROT_RTSCTS; 1238 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1239 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1240 prot = ic->ic_protmode; 1241 if (prot != IEEE80211_PROT_NONE) { 1242 error = rum_sendprot(sc, m0, ni, prot, rate); 1243 if (error || sc->tx_nfree == 0) { 1244 m_freem(m0); 1245 return ENOBUFS; 1246 } 1247 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1248 } 1249 } 1250 1251 data = STAILQ_FIRST(&sc->tx_free); 1252 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1253 sc->tx_nfree--; 1254 1255 data->m = m0; 1256 data->ni = ni; 1257 data->rate = rate; 1258 1259 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1260 flags |= RT2573_TX_NEED_ACK; 1261 flags |= RT2573_TX_MORE_FRAG; 1262 1263 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1264 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1265 *(uint16_t *)wh->i_dur = htole16(dur); 1266 } 1267 1268 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1269 1270 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1271 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1272 1273 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1274 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1275 1276 return 0; 1277 } 1278 1279 static void 1280 rum_start(struct ifnet *ifp) 1281 { 1282 struct rum_softc *sc = ifp->if_softc; 1283 struct ieee80211_node *ni; 1284 struct mbuf *m; 1285 1286 RUM_LOCK(sc); 1287 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1288 RUM_UNLOCK(sc); 1289 return; 1290 } 1291 for (;;) { 1292 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1293 if (m == NULL) 1294 break; 1295 if (sc->tx_nfree < RUM_TX_MINFREE) { 1296 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1297 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1298 break; 1299 } 1300 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1301 if (rum_tx_data(sc, m, ni) != 0) { 1302 ieee80211_free_node(ni); 1303 ifp->if_oerrors++; 1304 break; 1305 } 1306 } 1307 RUM_UNLOCK(sc); 1308 } 1309 1310 static int 1311 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1312 { 1313 struct rum_softc *sc = ifp->if_softc; 1314 struct ieee80211com *ic = ifp->if_l2com; 1315 struct ifreq *ifr = (struct ifreq *) data; 1316 int error = 0, startall = 0; 1317 1318 switch (cmd) { 1319 case SIOCSIFFLAGS: 1320 RUM_LOCK(sc); 1321 if (ifp->if_flags & IFF_UP) { 1322 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1323 rum_init_locked(sc); 1324 startall = 1; 1325 } else 1326 rum_setpromisc(sc); 1327 } else { 1328 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1329 rum_stop(sc); 1330 } 1331 RUM_UNLOCK(sc); 1332 if (startall) 1333 ieee80211_start_all(ic); 1334 break; 1335 case SIOCGIFMEDIA: 1336 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1337 break; 1338 case SIOCGIFADDR: 1339 error = ether_ioctl(ifp, cmd, data); 1340 break; 1341 default: 1342 error = EINVAL; 1343 break; 1344 } 1345 return error; 1346 } 1347 1348 static void 1349 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1350 { 1351 struct usb_device_request req; 1352 usb_error_t error; 1353 1354 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1355 req.bRequest = RT2573_READ_EEPROM; 1356 USETW(req.wValue, 0); 1357 USETW(req.wIndex, addr); 1358 USETW(req.wLength, len); 1359 1360 error = rum_do_request(sc, &req, buf); 1361 if (error != 0) { 1362 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1363 usbd_errstr(error)); 1364 } 1365 } 1366 1367 static uint32_t 1368 rum_read(struct rum_softc *sc, uint16_t reg) 1369 { 1370 uint32_t val; 1371 1372 rum_read_multi(sc, reg, &val, sizeof val); 1373 1374 return le32toh(val); 1375 } 1376 1377 static void 1378 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1379 { 1380 struct usb_device_request req; 1381 usb_error_t error; 1382 1383 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1384 req.bRequest = RT2573_READ_MULTI_MAC; 1385 USETW(req.wValue, 0); 1386 USETW(req.wIndex, reg); 1387 USETW(req.wLength, len); 1388 1389 error = rum_do_request(sc, &req, buf); 1390 if (error != 0) { 1391 device_printf(sc->sc_dev, 1392 "could not multi read MAC register: %s\n", 1393 usbd_errstr(error)); 1394 } 1395 } 1396 1397 static usb_error_t 1398 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1399 { 1400 uint32_t tmp = htole32(val); 1401 1402 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1403 } 1404 1405 static usb_error_t 1406 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1407 { 1408 struct usb_device_request req; 1409 usb_error_t error; 1410 1411 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1412 req.bRequest = RT2573_WRITE_MULTI_MAC; 1413 USETW(req.wValue, 0); 1414 USETW(req.wIndex, reg); 1415 USETW(req.wLength, len); 1416 1417 error = rum_do_request(sc, &req, buf); 1418 if (error != 0) { 1419 device_printf(sc->sc_dev, 1420 "could not multi write MAC register: %s\n", 1421 usbd_errstr(error)); 1422 } 1423 return (error); 1424 } 1425 1426 static void 1427 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1428 { 1429 uint32_t tmp; 1430 int ntries; 1431 1432 DPRINTFN(2, "reg=0x%08x\n", reg); 1433 1434 for (ntries = 0; ntries < 100; ntries++) { 1435 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1436 break; 1437 if (rum_pause(sc, hz / 100)) 1438 break; 1439 } 1440 if (ntries == 100) { 1441 device_printf(sc->sc_dev, "could not write to BBP\n"); 1442 return; 1443 } 1444 1445 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1446 rum_write(sc, RT2573_PHY_CSR3, tmp); 1447 } 1448 1449 static uint8_t 1450 rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1451 { 1452 uint32_t val; 1453 int ntries; 1454 1455 DPRINTFN(2, "reg=0x%08x\n", reg); 1456 1457 for (ntries = 0; ntries < 100; ntries++) { 1458 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1459 break; 1460 if (rum_pause(sc, hz / 100)) 1461 break; 1462 } 1463 if (ntries == 100) { 1464 device_printf(sc->sc_dev, "could not read BBP\n"); 1465 return 0; 1466 } 1467 1468 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1469 rum_write(sc, RT2573_PHY_CSR3, val); 1470 1471 for (ntries = 0; ntries < 100; ntries++) { 1472 val = rum_read(sc, RT2573_PHY_CSR3); 1473 if (!(val & RT2573_BBP_BUSY)) 1474 return val & 0xff; 1475 if (rum_pause(sc, hz / 100)) 1476 break; 1477 } 1478 1479 device_printf(sc->sc_dev, "could not read BBP\n"); 1480 return 0; 1481 } 1482 1483 static void 1484 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1485 { 1486 uint32_t tmp; 1487 int ntries; 1488 1489 for (ntries = 0; ntries < 100; ntries++) { 1490 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1491 break; 1492 if (rum_pause(sc, hz / 100)) 1493 break; 1494 } 1495 if (ntries == 100) { 1496 device_printf(sc->sc_dev, "could not write to RF\n"); 1497 return; 1498 } 1499 1500 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1501 (reg & 3); 1502 rum_write(sc, RT2573_PHY_CSR4, tmp); 1503 1504 /* remember last written value in sc */ 1505 sc->rf_regs[reg] = val; 1506 1507 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1508 } 1509 1510 static void 1511 rum_select_antenna(struct rum_softc *sc) 1512 { 1513 uint8_t bbp4, bbp77; 1514 uint32_t tmp; 1515 1516 bbp4 = rum_bbp_read(sc, 4); 1517 bbp77 = rum_bbp_read(sc, 77); 1518 1519 /* TBD */ 1520 1521 /* make sure Rx is disabled before switching antenna */ 1522 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1523 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1524 1525 rum_bbp_write(sc, 4, bbp4); 1526 rum_bbp_write(sc, 77, bbp77); 1527 1528 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1529 } 1530 1531 /* 1532 * Enable multi-rate retries for frames sent at OFDM rates. 1533 * In 802.11b/g mode, allow fallback to CCK rates. 1534 */ 1535 static void 1536 rum_enable_mrr(struct rum_softc *sc) 1537 { 1538 struct ifnet *ifp = sc->sc_ifp; 1539 struct ieee80211com *ic = ifp->if_l2com; 1540 uint32_t tmp; 1541 1542 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1543 1544 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1545 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1546 tmp |= RT2573_MRR_CCK_FALLBACK; 1547 tmp |= RT2573_MRR_ENABLED; 1548 1549 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1550 } 1551 1552 static void 1553 rum_set_txpreamble(struct rum_softc *sc) 1554 { 1555 struct ifnet *ifp = sc->sc_ifp; 1556 struct ieee80211com *ic = ifp->if_l2com; 1557 uint32_t tmp; 1558 1559 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1560 1561 tmp &= ~RT2573_SHORT_PREAMBLE; 1562 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1563 tmp |= RT2573_SHORT_PREAMBLE; 1564 1565 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1566 } 1567 1568 static void 1569 rum_set_basicrates(struct rum_softc *sc) 1570 { 1571 struct ifnet *ifp = sc->sc_ifp; 1572 struct ieee80211com *ic = ifp->if_l2com; 1573 1574 /* update basic rate set */ 1575 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1576 /* 11b basic rates: 1, 2Mbps */ 1577 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1578 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1579 /* 11a basic rates: 6, 12, 24Mbps */ 1580 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1581 } else { 1582 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1583 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1584 } 1585 } 1586 1587 /* 1588 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1589 * driver. 1590 */ 1591 static void 1592 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1593 { 1594 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1595 uint32_t tmp; 1596 1597 /* update all BBP registers that depend on the band */ 1598 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1599 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1600 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1601 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1602 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1603 } 1604 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1605 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1606 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1607 } 1608 1609 sc->bbp17 = bbp17; 1610 rum_bbp_write(sc, 17, bbp17); 1611 rum_bbp_write(sc, 96, bbp96); 1612 rum_bbp_write(sc, 104, bbp104); 1613 1614 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1615 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1616 rum_bbp_write(sc, 75, 0x80); 1617 rum_bbp_write(sc, 86, 0x80); 1618 rum_bbp_write(sc, 88, 0x80); 1619 } 1620 1621 rum_bbp_write(sc, 35, bbp35); 1622 rum_bbp_write(sc, 97, bbp97); 1623 rum_bbp_write(sc, 98, bbp98); 1624 1625 tmp = rum_read(sc, RT2573_PHY_CSR0); 1626 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1627 if (IEEE80211_IS_CHAN_2GHZ(c)) 1628 tmp |= RT2573_PA_PE_2GHZ; 1629 else 1630 tmp |= RT2573_PA_PE_5GHZ; 1631 rum_write(sc, RT2573_PHY_CSR0, tmp); 1632 } 1633 1634 static void 1635 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1636 { 1637 struct ifnet *ifp = sc->sc_ifp; 1638 struct ieee80211com *ic = ifp->if_l2com; 1639 const struct rfprog *rfprog; 1640 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1641 int8_t power; 1642 int i, chan; 1643 1644 chan = ieee80211_chan2ieee(ic, c); 1645 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1646 return; 1647 1648 /* select the appropriate RF settings based on what EEPROM says */ 1649 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1650 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1651 1652 /* find the settings for this channel (we know it exists) */ 1653 for (i = 0; rfprog[i].chan != chan; i++); 1654 1655 power = sc->txpow[i]; 1656 if (power < 0) { 1657 bbp94 += power; 1658 power = 0; 1659 } else if (power > 31) { 1660 bbp94 += power - 31; 1661 power = 31; 1662 } 1663 1664 /* 1665 * If we are switching from the 2GHz band to the 5GHz band or 1666 * vice-versa, BBP registers need to be reprogrammed. 1667 */ 1668 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1669 rum_select_band(sc, c); 1670 rum_select_antenna(sc); 1671 } 1672 ic->ic_curchan = c; 1673 1674 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1675 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1676 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1677 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1678 1679 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1680 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1681 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1682 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1683 1684 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1685 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1686 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1687 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1688 1689 rum_pause(sc, hz / 100); 1690 1691 /* enable smart mode for MIMO-capable RFs */ 1692 bbp3 = rum_bbp_read(sc, 3); 1693 1694 bbp3 &= ~RT2573_SMART_MODE; 1695 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1696 bbp3 |= RT2573_SMART_MODE; 1697 1698 rum_bbp_write(sc, 3, bbp3); 1699 1700 if (bbp94 != RT2573_BBPR94_DEFAULT) 1701 rum_bbp_write(sc, 94, bbp94); 1702 1703 /* give the chip some extra time to do the switchover */ 1704 rum_pause(sc, hz / 100); 1705 } 1706 1707 /* 1708 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1709 * and HostAP operating modes. 1710 */ 1711 static void 1712 rum_enable_tsf_sync(struct rum_softc *sc) 1713 { 1714 struct ifnet *ifp = sc->sc_ifp; 1715 struct ieee80211com *ic = ifp->if_l2com; 1716 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1717 uint32_t tmp; 1718 1719 if (vap->iv_opmode != IEEE80211_M_STA) { 1720 /* 1721 * Change default 16ms TBTT adjustment to 8ms. 1722 * Must be done before enabling beacon generation. 1723 */ 1724 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1725 } 1726 1727 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1728 1729 /* set beacon interval (in 1/16ms unit) */ 1730 tmp |= vap->iv_bss->ni_intval * 16; 1731 1732 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1733 if (vap->iv_opmode == IEEE80211_M_STA) 1734 tmp |= RT2573_TSF_MODE(1); 1735 else 1736 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1737 1738 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1739 } 1740 1741 static void 1742 rum_enable_tsf(struct rum_softc *sc) 1743 { 1744 rum_write(sc, RT2573_TXRX_CSR9, 1745 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1746 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1747 } 1748 1749 static void 1750 rum_update_slot(struct ifnet *ifp) 1751 { 1752 struct rum_softc *sc = ifp->if_softc; 1753 struct ieee80211com *ic = ifp->if_l2com; 1754 uint8_t slottime; 1755 uint32_t tmp; 1756 1757 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1758 1759 tmp = rum_read(sc, RT2573_MAC_CSR9); 1760 tmp = (tmp & ~0xff) | slottime; 1761 rum_write(sc, RT2573_MAC_CSR9, tmp); 1762 1763 DPRINTF("setting slot time to %uus\n", slottime); 1764 } 1765 1766 static void 1767 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1768 { 1769 uint32_t tmp; 1770 1771 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1772 rum_write(sc, RT2573_MAC_CSR4, tmp); 1773 1774 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1775 rum_write(sc, RT2573_MAC_CSR5, tmp); 1776 } 1777 1778 static void 1779 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1780 { 1781 uint32_t tmp; 1782 1783 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1784 rum_write(sc, RT2573_MAC_CSR2, tmp); 1785 1786 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1787 rum_write(sc, RT2573_MAC_CSR3, tmp); 1788 } 1789 1790 static void 1791 rum_setpromisc(struct rum_softc *sc) 1792 { 1793 struct ifnet *ifp = sc->sc_ifp; 1794 uint32_t tmp; 1795 1796 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1797 1798 tmp &= ~RT2573_DROP_NOT_TO_ME; 1799 if (!(ifp->if_flags & IFF_PROMISC)) 1800 tmp |= RT2573_DROP_NOT_TO_ME; 1801 1802 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1803 1804 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1805 "entering" : "leaving"); 1806 } 1807 1808 static void 1809 rum_update_promisc(struct ifnet *ifp) 1810 { 1811 struct rum_softc *sc = ifp->if_softc; 1812 1813 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1814 return; 1815 1816 RUM_LOCK(sc); 1817 rum_setpromisc(sc); 1818 RUM_UNLOCK(sc); 1819 } 1820 1821 static void 1822 rum_update_mcast(struct ifnet *ifp) 1823 { 1824 1825 /* XXX do nothing? */ 1826 } 1827 1828 static const char * 1829 rum_get_rf(int rev) 1830 { 1831 switch (rev) { 1832 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1833 case RT2573_RF_2528: return "RT2528"; 1834 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1835 case RT2573_RF_5226: return "RT5226"; 1836 default: return "unknown"; 1837 } 1838 } 1839 1840 static void 1841 rum_read_eeprom(struct rum_softc *sc) 1842 { 1843 uint16_t val; 1844 #ifdef RUM_DEBUG 1845 int i; 1846 #endif 1847 1848 /* read MAC address */ 1849 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1850 1851 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1852 val = le16toh(val); 1853 sc->rf_rev = (val >> 11) & 0x1f; 1854 sc->hw_radio = (val >> 10) & 0x1; 1855 sc->rx_ant = (val >> 4) & 0x3; 1856 sc->tx_ant = (val >> 2) & 0x3; 1857 sc->nb_ant = val & 0x3; 1858 1859 DPRINTF("RF revision=%d\n", sc->rf_rev); 1860 1861 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1862 val = le16toh(val); 1863 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1864 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1865 1866 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1867 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1868 1869 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1870 val = le16toh(val); 1871 if ((val & 0xff) != 0xff) 1872 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1873 1874 /* Only [-10, 10] is valid */ 1875 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1876 sc->rssi_2ghz_corr = 0; 1877 1878 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1879 val = le16toh(val); 1880 if ((val & 0xff) != 0xff) 1881 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1882 1883 /* Only [-10, 10] is valid */ 1884 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1885 sc->rssi_5ghz_corr = 0; 1886 1887 if (sc->ext_2ghz_lna) 1888 sc->rssi_2ghz_corr -= 14; 1889 if (sc->ext_5ghz_lna) 1890 sc->rssi_5ghz_corr -= 14; 1891 1892 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1893 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1894 1895 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1896 val = le16toh(val); 1897 if ((val & 0xff) != 0xff) 1898 sc->rffreq = val & 0xff; 1899 1900 DPRINTF("RF freq=%d\n", sc->rffreq); 1901 1902 /* read Tx power for all a/b/g channels */ 1903 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1904 /* XXX default Tx power for 802.11a channels */ 1905 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1906 #ifdef RUM_DEBUG 1907 for (i = 0; i < 14; i++) 1908 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1909 #endif 1910 1911 /* read default values for BBP registers */ 1912 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1913 #ifdef RUM_DEBUG 1914 for (i = 0; i < 14; i++) { 1915 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1916 continue; 1917 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1918 sc->bbp_prom[i].val); 1919 } 1920 #endif 1921 } 1922 1923 static int 1924 rum_bbp_init(struct rum_softc *sc) 1925 { 1926 #define N(a) (sizeof (a) / sizeof ((a)[0])) 1927 int i, ntries; 1928 1929 /* wait for BBP to be ready */ 1930 for (ntries = 0; ntries < 100; ntries++) { 1931 const uint8_t val = rum_bbp_read(sc, 0); 1932 if (val != 0 && val != 0xff) 1933 break; 1934 if (rum_pause(sc, hz / 100)) 1935 break; 1936 } 1937 if (ntries == 100) { 1938 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1939 return EIO; 1940 } 1941 1942 /* initialize BBP registers to default values */ 1943 for (i = 0; i < N(rum_def_bbp); i++) 1944 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1945 1946 /* write vendor-specific BBP values (from EEPROM) */ 1947 for (i = 0; i < 16; i++) { 1948 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1949 continue; 1950 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1951 } 1952 1953 return 0; 1954 #undef N 1955 } 1956 1957 static void 1958 rum_init_locked(struct rum_softc *sc) 1959 { 1960 #define N(a) (sizeof (a) / sizeof ((a)[0])) 1961 struct ifnet *ifp = sc->sc_ifp; 1962 struct ieee80211com *ic = ifp->if_l2com; 1963 uint32_t tmp; 1964 usb_error_t error; 1965 int i, ntries; 1966 1967 RUM_LOCK_ASSERT(sc, MA_OWNED); 1968 1969 rum_stop(sc); 1970 1971 /* initialize MAC registers to default values */ 1972 for (i = 0; i < N(rum_def_mac); i++) 1973 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1974 1975 /* set host ready */ 1976 rum_write(sc, RT2573_MAC_CSR1, 3); 1977 rum_write(sc, RT2573_MAC_CSR1, 0); 1978 1979 /* wait for BBP/RF to wakeup */ 1980 for (ntries = 0; ntries < 100; ntries++) { 1981 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1982 break; 1983 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1984 if (rum_pause(sc, hz / 100)) 1985 break; 1986 } 1987 if (ntries == 100) { 1988 device_printf(sc->sc_dev, 1989 "timeout waiting for BBP/RF to wakeup\n"); 1990 goto fail; 1991 } 1992 1993 if ((error = rum_bbp_init(sc)) != 0) 1994 goto fail; 1995 1996 /* select default channel */ 1997 rum_select_band(sc, ic->ic_curchan); 1998 rum_select_antenna(sc); 1999 rum_set_chan(sc, ic->ic_curchan); 2000 2001 /* clear STA registers */ 2002 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2003 2004 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2005 2006 /* initialize ASIC */ 2007 rum_write(sc, RT2573_MAC_CSR1, 4); 2008 2009 /* 2010 * Allocate Tx and Rx xfer queues. 2011 */ 2012 rum_setup_tx_list(sc); 2013 2014 /* update Rx filter */ 2015 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2016 2017 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2018 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2019 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2020 RT2573_DROP_ACKCTS; 2021 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2022 tmp |= RT2573_DROP_TODS; 2023 if (!(ifp->if_flags & IFF_PROMISC)) 2024 tmp |= RT2573_DROP_NOT_TO_ME; 2025 } 2026 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2027 2028 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2029 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2030 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2031 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2032 return; 2033 2034 fail: rum_stop(sc); 2035 #undef N 2036 } 2037 2038 static void 2039 rum_init(void *priv) 2040 { 2041 struct rum_softc *sc = priv; 2042 struct ifnet *ifp = sc->sc_ifp; 2043 struct ieee80211com *ic = ifp->if_l2com; 2044 2045 RUM_LOCK(sc); 2046 rum_init_locked(sc); 2047 RUM_UNLOCK(sc); 2048 2049 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2050 ieee80211_start_all(ic); /* start all vap's */ 2051 } 2052 2053 static void 2054 rum_stop(struct rum_softc *sc) 2055 { 2056 struct ifnet *ifp = sc->sc_ifp; 2057 uint32_t tmp; 2058 2059 RUM_LOCK_ASSERT(sc, MA_OWNED); 2060 2061 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2062 2063 RUM_UNLOCK(sc); 2064 2065 /* 2066 * Drain the USB transfers, if not already drained: 2067 */ 2068 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2069 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2070 2071 RUM_LOCK(sc); 2072 2073 rum_unsetup_tx_list(sc); 2074 2075 /* disable Rx */ 2076 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2077 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2078 2079 /* reset ASIC */ 2080 rum_write(sc, RT2573_MAC_CSR1, 3); 2081 rum_write(sc, RT2573_MAC_CSR1, 0); 2082 } 2083 2084 static void 2085 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2086 { 2087 struct usb_device_request req; 2088 uint16_t reg = RT2573_MCU_CODE_BASE; 2089 usb_error_t err; 2090 2091 /* copy firmware image into NIC */ 2092 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2093 err = rum_write(sc, reg, UGETDW(ucode)); 2094 if (err) { 2095 /* firmware already loaded ? */ 2096 device_printf(sc->sc_dev, "Firmware load " 2097 "failure! (ignored)\n"); 2098 break; 2099 } 2100 } 2101 2102 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2103 req.bRequest = RT2573_MCU_CNTL; 2104 USETW(req.wValue, RT2573_MCU_RUN); 2105 USETW(req.wIndex, 0); 2106 USETW(req.wLength, 0); 2107 2108 err = rum_do_request(sc, &req, NULL); 2109 if (err != 0) { 2110 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2111 usbd_errstr(err)); 2112 } 2113 2114 /* give the chip some time to boot */ 2115 rum_pause(sc, hz / 8); 2116 } 2117 2118 static int 2119 rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2120 { 2121 struct ieee80211com *ic = vap->iv_ic; 2122 const struct ieee80211_txparam *tp; 2123 struct rum_tx_desc desc; 2124 struct mbuf *m0; 2125 2126 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2127 if (m0 == NULL) { 2128 return ENOBUFS; 2129 } 2130 2131 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2132 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2133 m0->m_pkthdr.len, tp->mgmtrate); 2134 2135 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2136 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2137 2138 /* copy beacon header and payload into NIC memory */ 2139 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2140 m0->m_pkthdr.len); 2141 2142 m_freem(m0); 2143 2144 return 0; 2145 } 2146 2147 static int 2148 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2149 const struct ieee80211_bpf_params *params) 2150 { 2151 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2152 struct rum_softc *sc = ifp->if_softc; 2153 2154 RUM_LOCK(sc); 2155 /* prevent management frames from being sent if we're not ready */ 2156 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2157 RUM_UNLOCK(sc); 2158 m_freem(m); 2159 ieee80211_free_node(ni); 2160 return ENETDOWN; 2161 } 2162 if (sc->tx_nfree < RUM_TX_MINFREE) { 2163 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2164 RUM_UNLOCK(sc); 2165 m_freem(m); 2166 ieee80211_free_node(ni); 2167 return EIO; 2168 } 2169 2170 ifp->if_opackets++; 2171 2172 if (params == NULL) { 2173 /* 2174 * Legacy path; interpret frame contents to decide 2175 * precisely how to send the frame. 2176 */ 2177 if (rum_tx_mgt(sc, m, ni) != 0) 2178 goto bad; 2179 } else { 2180 /* 2181 * Caller supplied explicit parameters to use in 2182 * sending the frame. 2183 */ 2184 if (rum_tx_raw(sc, m, ni, params) != 0) 2185 goto bad; 2186 } 2187 RUM_UNLOCK(sc); 2188 2189 return 0; 2190 bad: 2191 ifp->if_oerrors++; 2192 RUM_UNLOCK(sc); 2193 ieee80211_free_node(ni); 2194 return EIO; 2195 } 2196 2197 static void 2198 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2199 { 2200 struct ieee80211vap *vap = ni->ni_vap; 2201 struct rum_vap *rvp = RUM_VAP(vap); 2202 2203 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2204 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2205 2206 ieee80211_ratectl_node_init(ni); 2207 2208 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2209 } 2210 2211 static void 2212 rum_ratectl_timeout(void *arg) 2213 { 2214 struct rum_vap *rvp = arg; 2215 struct ieee80211vap *vap = &rvp->vap; 2216 struct ieee80211com *ic = vap->iv_ic; 2217 2218 ieee80211_runtask(ic, &rvp->ratectl_task); 2219 } 2220 2221 static void 2222 rum_ratectl_task(void *arg, int pending) 2223 { 2224 struct rum_vap *rvp = arg; 2225 struct ieee80211vap *vap = &rvp->vap; 2226 struct ieee80211com *ic = vap->iv_ic; 2227 struct ifnet *ifp = ic->ic_ifp; 2228 struct rum_softc *sc = ifp->if_softc; 2229 struct ieee80211_node *ni = vap->iv_bss; 2230 int ok, fail; 2231 int sum, retrycnt; 2232 2233 RUM_LOCK(sc); 2234 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2235 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2236 2237 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2238 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2239 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2240 sum = ok+fail; 2241 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2242 2243 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2244 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2245 2246 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2247 2248 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2249 RUM_UNLOCK(sc); 2250 } 2251 2252 static void 2253 rum_scan_start(struct ieee80211com *ic) 2254 { 2255 struct ifnet *ifp = ic->ic_ifp; 2256 struct rum_softc *sc = ifp->if_softc; 2257 uint32_t tmp; 2258 2259 RUM_LOCK(sc); 2260 /* abort TSF synchronization */ 2261 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2262 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2263 rum_set_bssid(sc, ifp->if_broadcastaddr); 2264 RUM_UNLOCK(sc); 2265 2266 } 2267 2268 static void 2269 rum_scan_end(struct ieee80211com *ic) 2270 { 2271 struct rum_softc *sc = ic->ic_ifp->if_softc; 2272 2273 RUM_LOCK(sc); 2274 rum_enable_tsf_sync(sc); 2275 rum_set_bssid(sc, sc->sc_bssid); 2276 RUM_UNLOCK(sc); 2277 2278 } 2279 2280 static void 2281 rum_set_channel(struct ieee80211com *ic) 2282 { 2283 struct rum_softc *sc = ic->ic_ifp->if_softc; 2284 2285 RUM_LOCK(sc); 2286 rum_set_chan(sc, ic->ic_curchan); 2287 RUM_UNLOCK(sc); 2288 } 2289 2290 static int 2291 rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2292 { 2293 struct ifnet *ifp = sc->sc_ifp; 2294 struct ieee80211com *ic = ifp->if_l2com; 2295 int lna, agc, rssi; 2296 2297 lna = (raw >> 5) & 0x3; 2298 agc = raw & 0x1f; 2299 2300 if (lna == 0) { 2301 /* 2302 * No RSSI mapping 2303 * 2304 * NB: Since RSSI is relative to noise floor, -1 is 2305 * adequate for caller to know error happened. 2306 */ 2307 return -1; 2308 } 2309 2310 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2311 2312 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2313 rssi += sc->rssi_2ghz_corr; 2314 2315 if (lna == 1) 2316 rssi -= 64; 2317 else if (lna == 2) 2318 rssi -= 74; 2319 else if (lna == 3) 2320 rssi -= 90; 2321 } else { 2322 rssi += sc->rssi_5ghz_corr; 2323 2324 if (!sc->ext_5ghz_lna && lna != 1) 2325 rssi += 4; 2326 2327 if (lna == 1) 2328 rssi -= 64; 2329 else if (lna == 2) 2330 rssi -= 86; 2331 else if (lna == 3) 2332 rssi -= 100; 2333 } 2334 return rssi; 2335 } 2336 2337 static int 2338 rum_pause(struct rum_softc *sc, int timeout) 2339 { 2340 2341 usb_pause_mtx(&sc->sc_mtx, timeout); 2342 return (0); 2343 } 2344 2345 static device_method_t rum_methods[] = { 2346 /* Device interface */ 2347 DEVMETHOD(device_probe, rum_match), 2348 DEVMETHOD(device_attach, rum_attach), 2349 DEVMETHOD(device_detach, rum_detach), 2350 2351 { 0, 0 } 2352 }; 2353 2354 static driver_t rum_driver = { 2355 .name = "rum", 2356 .methods = rum_methods, 2357 .size = sizeof(struct rum_softc), 2358 }; 2359 2360 static devclass_t rum_devclass; 2361 2362 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2363