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 static 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_HOST_ID rum_devs[] = { 89 #define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 90 RUM_DEV(ABOCOM, HWU54DM), 91 RUM_DEV(ABOCOM, RT2573_2), 92 RUM_DEV(ABOCOM, RT2573_3), 93 RUM_DEV(ABOCOM, RT2573_4), 94 RUM_DEV(ABOCOM, WUG2700), 95 RUM_DEV(AMIT, CGWLUSB2GO), 96 RUM_DEV(ASUS, RT2573_1), 97 RUM_DEV(ASUS, RT2573_2), 98 RUM_DEV(BELKIN, F5D7050A), 99 RUM_DEV(BELKIN, F5D9050V3), 100 RUM_DEV(CISCOLINKSYS, WUSB54GC), 101 RUM_DEV(CISCOLINKSYS, WUSB54GR), 102 RUM_DEV(CONCEPTRONIC2, C54RU2), 103 RUM_DEV(COREGA, CGWLUSB2GL), 104 RUM_DEV(COREGA, CGWLUSB2GPX), 105 RUM_DEV(DICKSMITH, CWD854F), 106 RUM_DEV(DICKSMITH, RT2573), 107 RUM_DEV(EDIMAX, EW7318USG), 108 RUM_DEV(DLINK2, DWLG122C1), 109 RUM_DEV(DLINK2, WUA1340), 110 RUM_DEV(DLINK2, DWA111), 111 RUM_DEV(DLINK2, DWA110), 112 RUM_DEV(GIGABYTE, GNWB01GS), 113 RUM_DEV(GIGABYTE, GNWI05GS), 114 RUM_DEV(GIGASET, RT2573), 115 RUM_DEV(GOODWAY, RT2573), 116 RUM_DEV(GUILLEMOT, HWGUSB254LB), 117 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 118 RUM_DEV(HUAWEI3COM, WUB320G), 119 RUM_DEV(MELCO, G54HP), 120 RUM_DEV(MELCO, SG54HP), 121 RUM_DEV(MELCO, WLIUCG), 122 RUM_DEV(MELCO, WLRUCG), 123 RUM_DEV(MELCO, WLRUCGAOSS), 124 RUM_DEV(MSI, RT2573_1), 125 RUM_DEV(MSI, RT2573_2), 126 RUM_DEV(MSI, RT2573_3), 127 RUM_DEV(MSI, RT2573_4), 128 RUM_DEV(NOVATECH, RT2573), 129 RUM_DEV(PLANEX2, GWUS54HP), 130 RUM_DEV(PLANEX2, GWUS54MINI2), 131 RUM_DEV(PLANEX2, GWUSMM), 132 RUM_DEV(QCOM, RT2573), 133 RUM_DEV(QCOM, RT2573_2), 134 RUM_DEV(QCOM, RT2573_3), 135 RUM_DEV(RALINK, RT2573), 136 RUM_DEV(RALINK, RT2573_2), 137 RUM_DEV(RALINK, RT2671), 138 RUM_DEV(SITECOMEU, WL113R2), 139 RUM_DEV(SITECOMEU, WL172), 140 RUM_DEV(SPARKLAN, RT2573), 141 RUM_DEV(SURECOM, RT2573), 142 #undef RUM_DEV 143 }; 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 [IFNAMSIZ], int, enum ieee80211_opmode, 156 int, const uint8_t [IEEE80211_ADDR_LEN], 157 const uint8_t [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 void 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, const char name[IFNAMSIZ], int unit, 584 enum ieee80211_opmode 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_WAITOK | 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 = ieee80211_ref_node(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 ieee80211_free_node(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 int offset; 1411 1412 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1413 req.bRequest = RT2573_WRITE_MULTI_MAC; 1414 USETW(req.wValue, 0); 1415 1416 /* write at most 64 bytes at a time */ 1417 for (offset = 0; offset < len; offset += 64) { 1418 USETW(req.wIndex, reg + offset); 1419 USETW(req.wLength, MIN(len - offset, 64)); 1420 1421 error = rum_do_request(sc, &req, (char *)buf + offset); 1422 if (error != 0) { 1423 device_printf(sc->sc_dev, 1424 "could not multi write MAC register: %s\n", 1425 usbd_errstr(error)); 1426 return (error); 1427 } 1428 } 1429 1430 return (USB_ERR_NORMAL_COMPLETION); 1431 } 1432 1433 static void 1434 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1435 { 1436 uint32_t tmp; 1437 int ntries; 1438 1439 DPRINTFN(2, "reg=0x%08x\n", reg); 1440 1441 for (ntries = 0; ntries < 100; ntries++) { 1442 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1443 break; 1444 if (rum_pause(sc, hz / 100)) 1445 break; 1446 } 1447 if (ntries == 100) { 1448 device_printf(sc->sc_dev, "could not write to BBP\n"); 1449 return; 1450 } 1451 1452 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1453 rum_write(sc, RT2573_PHY_CSR3, tmp); 1454 } 1455 1456 static uint8_t 1457 rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1458 { 1459 uint32_t val; 1460 int ntries; 1461 1462 DPRINTFN(2, "reg=0x%08x\n", reg); 1463 1464 for (ntries = 0; ntries < 100; ntries++) { 1465 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1466 break; 1467 if (rum_pause(sc, hz / 100)) 1468 break; 1469 } 1470 if (ntries == 100) { 1471 device_printf(sc->sc_dev, "could not read BBP\n"); 1472 return 0; 1473 } 1474 1475 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1476 rum_write(sc, RT2573_PHY_CSR3, val); 1477 1478 for (ntries = 0; ntries < 100; ntries++) { 1479 val = rum_read(sc, RT2573_PHY_CSR3); 1480 if (!(val & RT2573_BBP_BUSY)) 1481 return val & 0xff; 1482 if (rum_pause(sc, hz / 100)) 1483 break; 1484 } 1485 1486 device_printf(sc->sc_dev, "could not read BBP\n"); 1487 return 0; 1488 } 1489 1490 static void 1491 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1492 { 1493 uint32_t tmp; 1494 int ntries; 1495 1496 for (ntries = 0; ntries < 100; ntries++) { 1497 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1498 break; 1499 if (rum_pause(sc, hz / 100)) 1500 break; 1501 } 1502 if (ntries == 100) { 1503 device_printf(sc->sc_dev, "could not write to RF\n"); 1504 return; 1505 } 1506 1507 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1508 (reg & 3); 1509 rum_write(sc, RT2573_PHY_CSR4, tmp); 1510 1511 /* remember last written value in sc */ 1512 sc->rf_regs[reg] = val; 1513 1514 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1515 } 1516 1517 static void 1518 rum_select_antenna(struct rum_softc *sc) 1519 { 1520 uint8_t bbp4, bbp77; 1521 uint32_t tmp; 1522 1523 bbp4 = rum_bbp_read(sc, 4); 1524 bbp77 = rum_bbp_read(sc, 77); 1525 1526 /* TBD */ 1527 1528 /* make sure Rx is disabled before switching antenna */ 1529 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1530 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1531 1532 rum_bbp_write(sc, 4, bbp4); 1533 rum_bbp_write(sc, 77, bbp77); 1534 1535 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1536 } 1537 1538 /* 1539 * Enable multi-rate retries for frames sent at OFDM rates. 1540 * In 802.11b/g mode, allow fallback to CCK rates. 1541 */ 1542 static void 1543 rum_enable_mrr(struct rum_softc *sc) 1544 { 1545 struct ifnet *ifp = sc->sc_ifp; 1546 struct ieee80211com *ic = ifp->if_l2com; 1547 uint32_t tmp; 1548 1549 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1550 1551 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1552 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1553 tmp |= RT2573_MRR_CCK_FALLBACK; 1554 tmp |= RT2573_MRR_ENABLED; 1555 1556 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1557 } 1558 1559 static void 1560 rum_set_txpreamble(struct rum_softc *sc) 1561 { 1562 struct ifnet *ifp = sc->sc_ifp; 1563 struct ieee80211com *ic = ifp->if_l2com; 1564 uint32_t tmp; 1565 1566 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1567 1568 tmp &= ~RT2573_SHORT_PREAMBLE; 1569 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1570 tmp |= RT2573_SHORT_PREAMBLE; 1571 1572 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1573 } 1574 1575 static void 1576 rum_set_basicrates(struct rum_softc *sc) 1577 { 1578 struct ifnet *ifp = sc->sc_ifp; 1579 struct ieee80211com *ic = ifp->if_l2com; 1580 1581 /* update basic rate set */ 1582 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1583 /* 11b basic rates: 1, 2Mbps */ 1584 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1585 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1586 /* 11a basic rates: 6, 12, 24Mbps */ 1587 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1588 } else { 1589 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1590 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1591 } 1592 } 1593 1594 /* 1595 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1596 * driver. 1597 */ 1598 static void 1599 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1600 { 1601 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1602 uint32_t tmp; 1603 1604 /* update all BBP registers that depend on the band */ 1605 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1606 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1607 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1608 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1609 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1610 } 1611 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1612 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1613 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1614 } 1615 1616 sc->bbp17 = bbp17; 1617 rum_bbp_write(sc, 17, bbp17); 1618 rum_bbp_write(sc, 96, bbp96); 1619 rum_bbp_write(sc, 104, bbp104); 1620 1621 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1622 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1623 rum_bbp_write(sc, 75, 0x80); 1624 rum_bbp_write(sc, 86, 0x80); 1625 rum_bbp_write(sc, 88, 0x80); 1626 } 1627 1628 rum_bbp_write(sc, 35, bbp35); 1629 rum_bbp_write(sc, 97, bbp97); 1630 rum_bbp_write(sc, 98, bbp98); 1631 1632 tmp = rum_read(sc, RT2573_PHY_CSR0); 1633 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1634 if (IEEE80211_IS_CHAN_2GHZ(c)) 1635 tmp |= RT2573_PA_PE_2GHZ; 1636 else 1637 tmp |= RT2573_PA_PE_5GHZ; 1638 rum_write(sc, RT2573_PHY_CSR0, tmp); 1639 } 1640 1641 static void 1642 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1643 { 1644 struct ifnet *ifp = sc->sc_ifp; 1645 struct ieee80211com *ic = ifp->if_l2com; 1646 const struct rfprog *rfprog; 1647 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1648 int8_t power; 1649 int i, chan; 1650 1651 chan = ieee80211_chan2ieee(ic, c); 1652 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1653 return; 1654 1655 /* select the appropriate RF settings based on what EEPROM says */ 1656 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1657 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1658 1659 /* find the settings for this channel (we know it exists) */ 1660 for (i = 0; rfprog[i].chan != chan; i++); 1661 1662 power = sc->txpow[i]; 1663 if (power < 0) { 1664 bbp94 += power; 1665 power = 0; 1666 } else if (power > 31) { 1667 bbp94 += power - 31; 1668 power = 31; 1669 } 1670 1671 /* 1672 * If we are switching from the 2GHz band to the 5GHz band or 1673 * vice-versa, BBP registers need to be reprogrammed. 1674 */ 1675 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1676 rum_select_band(sc, c); 1677 rum_select_antenna(sc); 1678 } 1679 ic->ic_curchan = c; 1680 1681 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1682 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1683 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1684 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1685 1686 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1687 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1688 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1689 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1690 1691 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1692 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1693 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1694 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1695 1696 rum_pause(sc, hz / 100); 1697 1698 /* enable smart mode for MIMO-capable RFs */ 1699 bbp3 = rum_bbp_read(sc, 3); 1700 1701 bbp3 &= ~RT2573_SMART_MODE; 1702 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1703 bbp3 |= RT2573_SMART_MODE; 1704 1705 rum_bbp_write(sc, 3, bbp3); 1706 1707 if (bbp94 != RT2573_BBPR94_DEFAULT) 1708 rum_bbp_write(sc, 94, bbp94); 1709 1710 /* give the chip some extra time to do the switchover */ 1711 rum_pause(sc, hz / 100); 1712 } 1713 1714 /* 1715 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1716 * and HostAP operating modes. 1717 */ 1718 static void 1719 rum_enable_tsf_sync(struct rum_softc *sc) 1720 { 1721 struct ifnet *ifp = sc->sc_ifp; 1722 struct ieee80211com *ic = ifp->if_l2com; 1723 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1724 uint32_t tmp; 1725 1726 if (vap->iv_opmode != IEEE80211_M_STA) { 1727 /* 1728 * Change default 16ms TBTT adjustment to 8ms. 1729 * Must be done before enabling beacon generation. 1730 */ 1731 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1732 } 1733 1734 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1735 1736 /* set beacon interval (in 1/16ms unit) */ 1737 tmp |= vap->iv_bss->ni_intval * 16; 1738 1739 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1740 if (vap->iv_opmode == IEEE80211_M_STA) 1741 tmp |= RT2573_TSF_MODE(1); 1742 else 1743 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1744 1745 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1746 } 1747 1748 static void 1749 rum_enable_tsf(struct rum_softc *sc) 1750 { 1751 rum_write(sc, RT2573_TXRX_CSR9, 1752 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1753 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1754 } 1755 1756 static void 1757 rum_update_slot(struct ifnet *ifp) 1758 { 1759 struct rum_softc *sc = ifp->if_softc; 1760 struct ieee80211com *ic = ifp->if_l2com; 1761 uint8_t slottime; 1762 uint32_t tmp; 1763 1764 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1765 1766 tmp = rum_read(sc, RT2573_MAC_CSR9); 1767 tmp = (tmp & ~0xff) | slottime; 1768 rum_write(sc, RT2573_MAC_CSR9, tmp); 1769 1770 DPRINTF("setting slot time to %uus\n", slottime); 1771 } 1772 1773 static void 1774 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1775 { 1776 uint32_t tmp; 1777 1778 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1779 rum_write(sc, RT2573_MAC_CSR4, tmp); 1780 1781 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1782 rum_write(sc, RT2573_MAC_CSR5, tmp); 1783 } 1784 1785 static void 1786 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1787 { 1788 uint32_t tmp; 1789 1790 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1791 rum_write(sc, RT2573_MAC_CSR2, tmp); 1792 1793 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1794 rum_write(sc, RT2573_MAC_CSR3, tmp); 1795 } 1796 1797 static void 1798 rum_setpromisc(struct rum_softc *sc) 1799 { 1800 struct ifnet *ifp = sc->sc_ifp; 1801 uint32_t tmp; 1802 1803 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1804 1805 tmp &= ~RT2573_DROP_NOT_TO_ME; 1806 if (!(ifp->if_flags & IFF_PROMISC)) 1807 tmp |= RT2573_DROP_NOT_TO_ME; 1808 1809 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1810 1811 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1812 "entering" : "leaving"); 1813 } 1814 1815 static void 1816 rum_update_promisc(struct ifnet *ifp) 1817 { 1818 struct rum_softc *sc = ifp->if_softc; 1819 1820 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1821 return; 1822 1823 RUM_LOCK(sc); 1824 rum_setpromisc(sc); 1825 RUM_UNLOCK(sc); 1826 } 1827 1828 static void 1829 rum_update_mcast(struct ifnet *ifp) 1830 { 1831 static int warning_printed; 1832 1833 if (warning_printed == 0) { 1834 if_printf(ifp, "need to implement %s\n", __func__); 1835 warning_printed = 1; 1836 } 1837 } 1838 1839 static const char * 1840 rum_get_rf(int rev) 1841 { 1842 switch (rev) { 1843 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1844 case RT2573_RF_2528: return "RT2528"; 1845 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1846 case RT2573_RF_5226: return "RT5226"; 1847 default: return "unknown"; 1848 } 1849 } 1850 1851 static void 1852 rum_read_eeprom(struct rum_softc *sc) 1853 { 1854 uint16_t val; 1855 #ifdef RUM_DEBUG 1856 int i; 1857 #endif 1858 1859 /* read MAC address */ 1860 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1861 1862 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1863 val = le16toh(val); 1864 sc->rf_rev = (val >> 11) & 0x1f; 1865 sc->hw_radio = (val >> 10) & 0x1; 1866 sc->rx_ant = (val >> 4) & 0x3; 1867 sc->tx_ant = (val >> 2) & 0x3; 1868 sc->nb_ant = val & 0x3; 1869 1870 DPRINTF("RF revision=%d\n", sc->rf_rev); 1871 1872 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1873 val = le16toh(val); 1874 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1875 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1876 1877 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1878 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1879 1880 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1881 val = le16toh(val); 1882 if ((val & 0xff) != 0xff) 1883 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1884 1885 /* Only [-10, 10] is valid */ 1886 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1887 sc->rssi_2ghz_corr = 0; 1888 1889 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1890 val = le16toh(val); 1891 if ((val & 0xff) != 0xff) 1892 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1893 1894 /* Only [-10, 10] is valid */ 1895 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1896 sc->rssi_5ghz_corr = 0; 1897 1898 if (sc->ext_2ghz_lna) 1899 sc->rssi_2ghz_corr -= 14; 1900 if (sc->ext_5ghz_lna) 1901 sc->rssi_5ghz_corr -= 14; 1902 1903 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1904 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1905 1906 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1907 val = le16toh(val); 1908 if ((val & 0xff) != 0xff) 1909 sc->rffreq = val & 0xff; 1910 1911 DPRINTF("RF freq=%d\n", sc->rffreq); 1912 1913 /* read Tx power for all a/b/g channels */ 1914 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1915 /* XXX default Tx power for 802.11a channels */ 1916 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1917 #ifdef RUM_DEBUG 1918 for (i = 0; i < 14; i++) 1919 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1920 #endif 1921 1922 /* read default values for BBP registers */ 1923 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1924 #ifdef RUM_DEBUG 1925 for (i = 0; i < 14; i++) { 1926 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1927 continue; 1928 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1929 sc->bbp_prom[i].val); 1930 } 1931 #endif 1932 } 1933 1934 static int 1935 rum_bbp_init(struct rum_softc *sc) 1936 { 1937 #define N(a) (sizeof (a) / sizeof ((a)[0])) 1938 int i, ntries; 1939 1940 /* wait for BBP to be ready */ 1941 for (ntries = 0; ntries < 100; ntries++) { 1942 const uint8_t val = rum_bbp_read(sc, 0); 1943 if (val != 0 && val != 0xff) 1944 break; 1945 if (rum_pause(sc, hz / 100)) 1946 break; 1947 } 1948 if (ntries == 100) { 1949 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1950 return EIO; 1951 } 1952 1953 /* initialize BBP registers to default values */ 1954 for (i = 0; i < N(rum_def_bbp); i++) 1955 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1956 1957 /* write vendor-specific BBP values (from EEPROM) */ 1958 for (i = 0; i < 16; i++) { 1959 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1960 continue; 1961 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1962 } 1963 1964 return 0; 1965 #undef N 1966 } 1967 1968 static void 1969 rum_init_locked(struct rum_softc *sc) 1970 { 1971 #define N(a) (sizeof (a) / sizeof ((a)[0])) 1972 struct ifnet *ifp = sc->sc_ifp; 1973 struct ieee80211com *ic = ifp->if_l2com; 1974 uint32_t tmp; 1975 usb_error_t error; 1976 int i, ntries; 1977 1978 RUM_LOCK_ASSERT(sc, MA_OWNED); 1979 1980 rum_stop(sc); 1981 1982 /* initialize MAC registers to default values */ 1983 for (i = 0; i < N(rum_def_mac); i++) 1984 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1985 1986 /* set host ready */ 1987 rum_write(sc, RT2573_MAC_CSR1, 3); 1988 rum_write(sc, RT2573_MAC_CSR1, 0); 1989 1990 /* wait for BBP/RF to wakeup */ 1991 for (ntries = 0; ntries < 100; ntries++) { 1992 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1993 break; 1994 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1995 if (rum_pause(sc, hz / 100)) 1996 break; 1997 } 1998 if (ntries == 100) { 1999 device_printf(sc->sc_dev, 2000 "timeout waiting for BBP/RF to wakeup\n"); 2001 goto fail; 2002 } 2003 2004 if ((error = rum_bbp_init(sc)) != 0) 2005 goto fail; 2006 2007 /* select default channel */ 2008 rum_select_band(sc, ic->ic_curchan); 2009 rum_select_antenna(sc); 2010 rum_set_chan(sc, ic->ic_curchan); 2011 2012 /* clear STA registers */ 2013 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2014 2015 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2016 2017 /* initialize ASIC */ 2018 rum_write(sc, RT2573_MAC_CSR1, 4); 2019 2020 /* 2021 * Allocate Tx and Rx xfer queues. 2022 */ 2023 rum_setup_tx_list(sc); 2024 2025 /* update Rx filter */ 2026 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2027 2028 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2029 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2030 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2031 RT2573_DROP_ACKCTS; 2032 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2033 tmp |= RT2573_DROP_TODS; 2034 if (!(ifp->if_flags & IFF_PROMISC)) 2035 tmp |= RT2573_DROP_NOT_TO_ME; 2036 } 2037 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2038 2039 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2040 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2041 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2042 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2043 return; 2044 2045 fail: rum_stop(sc); 2046 #undef N 2047 } 2048 2049 static void 2050 rum_init(void *priv) 2051 { 2052 struct rum_softc *sc = priv; 2053 struct ifnet *ifp = sc->sc_ifp; 2054 struct ieee80211com *ic = ifp->if_l2com; 2055 2056 RUM_LOCK(sc); 2057 rum_init_locked(sc); 2058 RUM_UNLOCK(sc); 2059 2060 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2061 ieee80211_start_all(ic); /* start all vap's */ 2062 } 2063 2064 static void 2065 rum_stop(struct rum_softc *sc) 2066 { 2067 struct ifnet *ifp = sc->sc_ifp; 2068 uint32_t tmp; 2069 2070 RUM_LOCK_ASSERT(sc, MA_OWNED); 2071 2072 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2073 2074 RUM_UNLOCK(sc); 2075 2076 /* 2077 * Drain the USB transfers, if not already drained: 2078 */ 2079 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2080 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2081 2082 RUM_LOCK(sc); 2083 2084 rum_unsetup_tx_list(sc); 2085 2086 /* disable Rx */ 2087 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2088 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2089 2090 /* reset ASIC */ 2091 rum_write(sc, RT2573_MAC_CSR1, 3); 2092 rum_write(sc, RT2573_MAC_CSR1, 0); 2093 } 2094 2095 static void 2096 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2097 { 2098 struct usb_device_request req; 2099 uint16_t reg = RT2573_MCU_CODE_BASE; 2100 usb_error_t err; 2101 2102 /* copy firmware image into NIC */ 2103 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2104 err = rum_write(sc, reg, UGETDW(ucode)); 2105 if (err) { 2106 /* firmware already loaded ? */ 2107 device_printf(sc->sc_dev, "Firmware load " 2108 "failure! (ignored)\n"); 2109 break; 2110 } 2111 } 2112 2113 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2114 req.bRequest = RT2573_MCU_CNTL; 2115 USETW(req.wValue, RT2573_MCU_RUN); 2116 USETW(req.wIndex, 0); 2117 USETW(req.wLength, 0); 2118 2119 err = rum_do_request(sc, &req, NULL); 2120 if (err != 0) { 2121 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2122 usbd_errstr(err)); 2123 } 2124 2125 /* give the chip some time to boot */ 2126 rum_pause(sc, hz / 8); 2127 } 2128 2129 static void 2130 rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2131 { 2132 struct ieee80211com *ic = vap->iv_ic; 2133 const struct ieee80211_txparam *tp; 2134 struct rum_tx_desc desc; 2135 struct mbuf *m0; 2136 2137 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2138 return; 2139 2140 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2141 if (m0 == NULL) { 2142 return; 2143 } 2144 2145 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2146 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2147 m0->m_pkthdr.len, tp->mgmtrate); 2148 2149 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2150 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2151 2152 /* copy beacon header and payload into NIC memory */ 2153 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2154 m0->m_pkthdr.len); 2155 2156 m_freem(m0); 2157 } 2158 2159 static int 2160 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2161 const struct ieee80211_bpf_params *params) 2162 { 2163 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2164 struct rum_softc *sc = ifp->if_softc; 2165 2166 RUM_LOCK(sc); 2167 /* prevent management frames from being sent if we're not ready */ 2168 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2169 RUM_UNLOCK(sc); 2170 m_freem(m); 2171 ieee80211_free_node(ni); 2172 return ENETDOWN; 2173 } 2174 if (sc->tx_nfree < RUM_TX_MINFREE) { 2175 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2176 RUM_UNLOCK(sc); 2177 m_freem(m); 2178 ieee80211_free_node(ni); 2179 return EIO; 2180 } 2181 2182 ifp->if_opackets++; 2183 2184 if (params == NULL) { 2185 /* 2186 * Legacy path; interpret frame contents to decide 2187 * precisely how to send the frame. 2188 */ 2189 if (rum_tx_mgt(sc, m, ni) != 0) 2190 goto bad; 2191 } else { 2192 /* 2193 * Caller supplied explicit parameters to use in 2194 * sending the frame. 2195 */ 2196 if (rum_tx_raw(sc, m, ni, params) != 0) 2197 goto bad; 2198 } 2199 RUM_UNLOCK(sc); 2200 2201 return 0; 2202 bad: 2203 ifp->if_oerrors++; 2204 RUM_UNLOCK(sc); 2205 ieee80211_free_node(ni); 2206 return EIO; 2207 } 2208 2209 static void 2210 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2211 { 2212 struct ieee80211vap *vap = ni->ni_vap; 2213 struct rum_vap *rvp = RUM_VAP(vap); 2214 2215 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2216 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2217 2218 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2219 } 2220 2221 static void 2222 rum_ratectl_timeout(void *arg) 2223 { 2224 struct rum_vap *rvp = arg; 2225 struct ieee80211vap *vap = &rvp->vap; 2226 struct ieee80211com *ic = vap->iv_ic; 2227 2228 ieee80211_runtask(ic, &rvp->ratectl_task); 2229 } 2230 2231 static void 2232 rum_ratectl_task(void *arg, int pending) 2233 { 2234 struct rum_vap *rvp = arg; 2235 struct ieee80211vap *vap = &rvp->vap; 2236 struct ieee80211com *ic = vap->iv_ic; 2237 struct ifnet *ifp = ic->ic_ifp; 2238 struct rum_softc *sc = ifp->if_softc; 2239 struct ieee80211_node *ni; 2240 int ok, fail; 2241 int sum, retrycnt; 2242 2243 RUM_LOCK(sc); 2244 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2245 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2246 2247 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2248 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2249 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2250 sum = ok+fail; 2251 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2252 2253 ni = ieee80211_ref_node(vap->iv_bss); 2254 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2255 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2256 ieee80211_free_node(ni); 2257 2258 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2259 2260 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2261 RUM_UNLOCK(sc); 2262 } 2263 2264 static void 2265 rum_scan_start(struct ieee80211com *ic) 2266 { 2267 struct ifnet *ifp = ic->ic_ifp; 2268 struct rum_softc *sc = ifp->if_softc; 2269 uint32_t tmp; 2270 2271 RUM_LOCK(sc); 2272 /* abort TSF synchronization */ 2273 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2274 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2275 rum_set_bssid(sc, ifp->if_broadcastaddr); 2276 RUM_UNLOCK(sc); 2277 2278 } 2279 2280 static void 2281 rum_scan_end(struct ieee80211com *ic) 2282 { 2283 struct rum_softc *sc = ic->ic_ifp->if_softc; 2284 2285 RUM_LOCK(sc); 2286 rum_enable_tsf_sync(sc); 2287 rum_set_bssid(sc, sc->sc_bssid); 2288 RUM_UNLOCK(sc); 2289 2290 } 2291 2292 static void 2293 rum_set_channel(struct ieee80211com *ic) 2294 { 2295 struct rum_softc *sc = ic->ic_ifp->if_softc; 2296 2297 RUM_LOCK(sc); 2298 rum_set_chan(sc, ic->ic_curchan); 2299 RUM_UNLOCK(sc); 2300 } 2301 2302 static int 2303 rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2304 { 2305 struct ifnet *ifp = sc->sc_ifp; 2306 struct ieee80211com *ic = ifp->if_l2com; 2307 int lna, agc, rssi; 2308 2309 lna = (raw >> 5) & 0x3; 2310 agc = raw & 0x1f; 2311 2312 if (lna == 0) { 2313 /* 2314 * No RSSI mapping 2315 * 2316 * NB: Since RSSI is relative to noise floor, -1 is 2317 * adequate for caller to know error happened. 2318 */ 2319 return -1; 2320 } 2321 2322 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2323 2324 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2325 rssi += sc->rssi_2ghz_corr; 2326 2327 if (lna == 1) 2328 rssi -= 64; 2329 else if (lna == 2) 2330 rssi -= 74; 2331 else if (lna == 3) 2332 rssi -= 90; 2333 } else { 2334 rssi += sc->rssi_5ghz_corr; 2335 2336 if (!sc->ext_5ghz_lna && lna != 1) 2337 rssi += 4; 2338 2339 if (lna == 1) 2340 rssi -= 64; 2341 else if (lna == 2) 2342 rssi -= 86; 2343 else if (lna == 3) 2344 rssi -= 100; 2345 } 2346 return rssi; 2347 } 2348 2349 static int 2350 rum_pause(struct rum_softc *sc, int timeout) 2351 { 2352 2353 usb_pause_mtx(&sc->sc_mtx, timeout); 2354 return (0); 2355 } 2356 2357 static device_method_t rum_methods[] = { 2358 /* Device interface */ 2359 DEVMETHOD(device_probe, rum_match), 2360 DEVMETHOD(device_attach, rum_attach), 2361 DEVMETHOD(device_detach, rum_detach), 2362 2363 DEVMETHOD_END 2364 }; 2365 2366 static driver_t rum_driver = { 2367 .name = "rum", 2368 .methods = rum_methods, 2369 .size = sizeof(struct rum_softc), 2370 }; 2371 2372 static devclass_t rum_devclass; 2373 2374 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2375 MODULE_DEPEND(rum, wlan, 1, 1, 1); 2376 MODULE_DEPEND(rum, usb, 1, 1, 1); 2377 MODULE_VERSION(rum, 1); 2378