if_rum.c revision 288501
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288501 2015-10-02 15:22:00Z adrian $ */ 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: head/sys/dev/usb/wlan/if_rum.c 288501 2015-10-02 15:22:00Z adrian $"); 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_var.h> 51#include <net/if_arp.h> 52#include <net/ethernet.h> 53#include <net/if_dl.h> 54#include <net/if_media.h> 55#include <net/if_types.h> 56 57#ifdef INET 58#include <netinet/in.h> 59#include <netinet/in_systm.h> 60#include <netinet/in_var.h> 61#include <netinet/if_ether.h> 62#include <netinet/ip.h> 63#endif 64 65#include <net80211/ieee80211_var.h> 66#include <net80211/ieee80211_regdomain.h> 67#include <net80211/ieee80211_radiotap.h> 68#include <net80211/ieee80211_ratectl.h> 69 70#include <dev/usb/usb.h> 71#include <dev/usb/usbdi.h> 72#include "usbdevs.h" 73 74#define USB_DEBUG_VAR rum_debug 75#include <dev/usb/usb_debug.h> 76 77#include <dev/usb/wlan/if_rumreg.h> 78#include <dev/usb/wlan/if_rumvar.h> 79#include <dev/usb/wlan/if_rumfw.h> 80 81#ifdef USB_DEBUG 82static int rum_debug = 0; 83 84static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 85SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0, 86 "Debug level"); 87#endif 88 89#define N(a) ((int)(sizeof (a) / sizeof ((a)[0]))) 90 91static const STRUCT_USB_HOST_ID rum_devs[] = { 92#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 93 RUM_DEV(ABOCOM, HWU54DM), 94 RUM_DEV(ABOCOM, RT2573_2), 95 RUM_DEV(ABOCOM, RT2573_3), 96 RUM_DEV(ABOCOM, RT2573_4), 97 RUM_DEV(ABOCOM, WUG2700), 98 RUM_DEV(AMIT, CGWLUSB2GO), 99 RUM_DEV(ASUS, RT2573_1), 100 RUM_DEV(ASUS, RT2573_2), 101 RUM_DEV(BELKIN, F5D7050A), 102 RUM_DEV(BELKIN, F5D9050V3), 103 RUM_DEV(CISCOLINKSYS, WUSB54GC), 104 RUM_DEV(CISCOLINKSYS, WUSB54GR), 105 RUM_DEV(CONCEPTRONIC2, C54RU2), 106 RUM_DEV(COREGA, CGWLUSB2GL), 107 RUM_DEV(COREGA, CGWLUSB2GPX), 108 RUM_DEV(DICKSMITH, CWD854F), 109 RUM_DEV(DICKSMITH, RT2573), 110 RUM_DEV(EDIMAX, EW7318USG), 111 RUM_DEV(DLINK2, DWLG122C1), 112 RUM_DEV(DLINK2, WUA1340), 113 RUM_DEV(DLINK2, DWA111), 114 RUM_DEV(DLINK2, DWA110), 115 RUM_DEV(GIGABYTE, GNWB01GS), 116 RUM_DEV(GIGABYTE, GNWI05GS), 117 RUM_DEV(GIGASET, RT2573), 118 RUM_DEV(GOODWAY, RT2573), 119 RUM_DEV(GUILLEMOT, HWGUSB254LB), 120 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 121 RUM_DEV(HUAWEI3COM, WUB320G), 122 RUM_DEV(MELCO, G54HP), 123 RUM_DEV(MELCO, SG54HP), 124 RUM_DEV(MELCO, SG54HG), 125 RUM_DEV(MELCO, WLIUCG), 126 RUM_DEV(MELCO, WLRUCG), 127 RUM_DEV(MELCO, WLRUCGAOSS), 128 RUM_DEV(MSI, RT2573_1), 129 RUM_DEV(MSI, RT2573_2), 130 RUM_DEV(MSI, RT2573_3), 131 RUM_DEV(MSI, RT2573_4), 132 RUM_DEV(NOVATECH, RT2573), 133 RUM_DEV(PLANEX2, GWUS54HP), 134 RUM_DEV(PLANEX2, GWUS54MINI2), 135 RUM_DEV(PLANEX2, GWUSMM), 136 RUM_DEV(QCOM, RT2573), 137 RUM_DEV(QCOM, RT2573_2), 138 RUM_DEV(QCOM, RT2573_3), 139 RUM_DEV(RALINK, RT2573), 140 RUM_DEV(RALINK, RT2573_2), 141 RUM_DEV(RALINK, RT2671), 142 RUM_DEV(SITECOMEU, WL113R2), 143 RUM_DEV(SITECOMEU, WL172), 144 RUM_DEV(SPARKLAN, RT2573), 145 RUM_DEV(SURECOM, RT2573), 146#undef RUM_DEV 147}; 148 149static device_probe_t rum_match; 150static device_attach_t rum_attach; 151static device_detach_t rum_detach; 152 153static usb_callback_t rum_bulk_read_callback; 154static usb_callback_t rum_bulk_write_callback; 155 156static usb_error_t rum_do_request(struct rum_softc *sc, 157 struct usb_device_request *req, void *data); 158static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 159 const char [IFNAMSIZ], int, enum ieee80211_opmode, 160 int, const uint8_t [IEEE80211_ADDR_LEN], 161 const uint8_t [IEEE80211_ADDR_LEN]); 162static void rum_vap_delete(struct ieee80211vap *); 163static void rum_tx_free(struct rum_tx_data *, int); 164static void rum_setup_tx_list(struct rum_softc *); 165static void rum_unsetup_tx_list(struct rum_softc *); 166static int rum_newstate(struct ieee80211vap *, 167 enum ieee80211_state, int); 168static void rum_setup_tx_desc(struct rum_softc *, 169 struct rum_tx_desc *, uint32_t, uint16_t, int, 170 int); 171static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 172 struct ieee80211_node *); 173static int rum_tx_raw(struct rum_softc *, struct mbuf *, 174 struct ieee80211_node *, 175 const struct ieee80211_bpf_params *); 176static int rum_tx_data(struct rum_softc *, struct mbuf *, 177 struct ieee80211_node *); 178static int rum_transmit(struct ieee80211com *, struct mbuf *); 179static void rum_start(struct rum_softc *); 180static void rum_parent(struct ieee80211com *); 181static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 182 int); 183static uint32_t rum_read(struct rum_softc *, uint16_t); 184static void rum_read_multi(struct rum_softc *, uint16_t, void *, 185 int); 186static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 187static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 188 size_t); 189static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 190static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 191static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 192static void rum_select_antenna(struct rum_softc *); 193static void rum_enable_mrr(struct rum_softc *); 194static void rum_set_txpreamble(struct rum_softc *); 195static void rum_set_basicrates(struct rum_softc *); 196static void rum_select_band(struct rum_softc *, 197 struct ieee80211_channel *); 198static void rum_set_chan(struct rum_softc *, 199 struct ieee80211_channel *); 200static void rum_enable_tsf_sync(struct rum_softc *); 201static void rum_enable_tsf(struct rum_softc *); 202static void rum_abort_tsf_sync(struct rum_softc *); 203static void rum_update_slot(struct rum_softc *); 204static void rum_set_bssid(struct rum_softc *, const uint8_t *); 205static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 206static void rum_update_mcast(struct ieee80211com *); 207static void rum_update_promisc(struct ieee80211com *); 208static void rum_setpromisc(struct rum_softc *); 209static const char *rum_get_rf(int); 210static void rum_read_eeprom(struct rum_softc *); 211static int rum_bbp_init(struct rum_softc *); 212static void rum_init(struct rum_softc *); 213static void rum_stop(struct rum_softc *); 214static void rum_load_microcode(struct rum_softc *, const uint8_t *, 215 size_t); 216static void rum_prepare_beacon(struct rum_softc *, 217 struct ieee80211vap *); 218static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 219 const struct ieee80211_bpf_params *); 220static void rum_scan_start(struct ieee80211com *); 221static void rum_scan_end(struct ieee80211com *); 222static void rum_set_channel(struct ieee80211com *); 223static int rum_get_rssi(struct rum_softc *, uint8_t); 224static void rum_ratectl_start(struct rum_softc *, 225 struct ieee80211_node *); 226static void rum_ratectl_timeout(void *); 227static void rum_ratectl_task(void *, int); 228static int rum_pause(struct rum_softc *, int); 229 230static const struct { 231 uint32_t reg; 232 uint32_t val; 233} rum_def_mac[] = { 234 { RT2573_TXRX_CSR0, 0x025fb032 }, 235 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 236 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 237 { RT2573_TXRX_CSR3, 0x00858687 }, 238 { RT2573_TXRX_CSR7, 0x2e31353b }, 239 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 240 { RT2573_TXRX_CSR15, 0x0000000f }, 241 { RT2573_MAC_CSR6, 0x00000fff }, 242 { RT2573_MAC_CSR8, 0x016c030a }, 243 { RT2573_MAC_CSR10, 0x00000718 }, 244 { RT2573_MAC_CSR12, 0x00000004 }, 245 { RT2573_MAC_CSR13, 0x00007f00 }, 246 { RT2573_SEC_CSR0, 0x00000000 }, 247 { RT2573_SEC_CSR1, 0x00000000 }, 248 { RT2573_SEC_CSR5, 0x00000000 }, 249 { RT2573_PHY_CSR1, 0x000023b0 }, 250 { RT2573_PHY_CSR5, 0x00040a06 }, 251 { RT2573_PHY_CSR6, 0x00080606 }, 252 { RT2573_PHY_CSR7, 0x00000408 }, 253 { RT2573_AIFSN_CSR, 0x00002273 }, 254 { RT2573_CWMIN_CSR, 0x00002344 }, 255 { RT2573_CWMAX_CSR, 0x000034aa } 256}; 257 258static const struct { 259 uint8_t reg; 260 uint8_t val; 261} rum_def_bbp[] = { 262 { 3, 0x80 }, 263 { 15, 0x30 }, 264 { 17, 0x20 }, 265 { 21, 0xc8 }, 266 { 22, 0x38 }, 267 { 23, 0x06 }, 268 { 24, 0xfe }, 269 { 25, 0x0a }, 270 { 26, 0x0d }, 271 { 32, 0x0b }, 272 { 34, 0x12 }, 273 { 37, 0x07 }, 274 { 39, 0xf8 }, 275 { 41, 0x60 }, 276 { 53, 0x10 }, 277 { 54, 0x18 }, 278 { 60, 0x10 }, 279 { 61, 0x04 }, 280 { 62, 0x04 }, 281 { 75, 0xfe }, 282 { 86, 0xfe }, 283 { 88, 0xfe }, 284 { 90, 0x0f }, 285 { 99, 0x00 }, 286 { 102, 0x16 }, 287 { 107, 0x04 } 288}; 289 290static const struct rfprog { 291 uint8_t chan; 292 uint32_t r1, r2, r3, r4; 293} rum_rf5226[] = { 294 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 295 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 296 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 297 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 298 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 299 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 300 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 301 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 302 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 303 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 304 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 305 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 306 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 307 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 308 309 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 310 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 311 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 312 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 313 314 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 315 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 316 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 317 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 318 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 319 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 320 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 321 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 322 323 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 324 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 325 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 326 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 327 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 328 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 329 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 330 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 331 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 332 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 333 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 334 335 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 336 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 337 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 338 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 339 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 340}, rum_rf5225[] = { 341 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 342 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 343 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 344 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 345 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 346 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 347 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 348 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 349 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 350 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 351 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 352 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 353 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 354 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 355 356 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 357 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 358 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 359 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 360 361 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 362 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 363 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 364 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 365 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 366 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 367 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 368 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 369 370 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 371 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 372 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 373 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 374 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 375 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 376 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 377 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 378 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 379 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 380 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 381 382 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 383 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 384 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 385 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 386 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 387}; 388 389static const struct usb_config rum_config[RUM_N_TRANSFER] = { 390 [RUM_BULK_WR] = { 391 .type = UE_BULK, 392 .endpoint = UE_ADDR_ANY, 393 .direction = UE_DIR_OUT, 394 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 395 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 396 .callback = rum_bulk_write_callback, 397 .timeout = 5000, /* ms */ 398 }, 399 [RUM_BULK_RD] = { 400 .type = UE_BULK, 401 .endpoint = UE_ADDR_ANY, 402 .direction = UE_DIR_IN, 403 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 404 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 405 .callback = rum_bulk_read_callback, 406 }, 407}; 408 409static int 410rum_match(device_t self) 411{ 412 struct usb_attach_arg *uaa = device_get_ivars(self); 413 414 if (uaa->usb_mode != USB_MODE_HOST) 415 return (ENXIO); 416 if (uaa->info.bConfigIndex != 0) 417 return (ENXIO); 418 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 419 return (ENXIO); 420 421 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 422} 423 424static int 425rum_attach(device_t self) 426{ 427 struct usb_attach_arg *uaa = device_get_ivars(self); 428 struct rum_softc *sc = device_get_softc(self); 429 struct ieee80211com *ic = &sc->sc_ic; 430 uint8_t iface_index, bands; 431 uint32_t tmp; 432 int error, ntries; 433 434 device_set_usb_desc(self); 435 sc->sc_udev = uaa->device; 436 sc->sc_dev = self; 437 438 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 439 MTX_NETWORK_LOCK, MTX_DEF); 440 mbufq_init(&sc->sc_snd, ifqmaxlen); 441 442 iface_index = RT2573_IFACE_INDEX; 443 error = usbd_transfer_setup(uaa->device, &iface_index, 444 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 445 if (error) { 446 device_printf(self, "could not allocate USB transfers, " 447 "err=%s\n", usbd_errstr(error)); 448 goto detach; 449 } 450 451 RUM_LOCK(sc); 452 /* retrieve RT2573 rev. no */ 453 for (ntries = 0; ntries < 100; ntries++) { 454 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 455 break; 456 if (rum_pause(sc, hz / 100)) 457 break; 458 } 459 if (ntries == 100) { 460 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 461 RUM_UNLOCK(sc); 462 goto detach; 463 } 464 465 /* retrieve MAC address and various other things from EEPROM */ 466 rum_read_eeprom(sc); 467 468 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 469 tmp, rum_get_rf(sc->rf_rev)); 470 471 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 472 RUM_UNLOCK(sc); 473 474 ic->ic_softc = sc; 475 ic->ic_name = device_get_nameunit(self); 476 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 477 478 /* set device capabilities */ 479 ic->ic_caps = 480 IEEE80211_C_STA /* station mode supported */ 481 | IEEE80211_C_IBSS /* IBSS mode supported */ 482 | IEEE80211_C_MONITOR /* monitor mode supported */ 483 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 484 | IEEE80211_C_TXPMGT /* tx power management */ 485 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 486 | IEEE80211_C_SHSLOT /* short slot time supported */ 487 | IEEE80211_C_BGSCAN /* bg scanning supported */ 488 | IEEE80211_C_WPA /* 802.11i */ 489 ; 490 491 bands = 0; 492 setbit(&bands, IEEE80211_MODE_11B); 493 setbit(&bands, IEEE80211_MODE_11G); 494 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 495 setbit(&bands, IEEE80211_MODE_11A); 496 ieee80211_init_channels(ic, NULL, &bands); 497 498 ieee80211_ifattach(ic); 499 ic->ic_update_promisc = rum_update_promisc; 500 ic->ic_raw_xmit = rum_raw_xmit; 501 ic->ic_scan_start = rum_scan_start; 502 ic->ic_scan_end = rum_scan_end; 503 ic->ic_set_channel = rum_set_channel; 504 ic->ic_transmit = rum_transmit; 505 ic->ic_parent = rum_parent; 506 ic->ic_vap_create = rum_vap_create; 507 ic->ic_vap_delete = rum_vap_delete; 508 ic->ic_update_mcast = rum_update_mcast; 509 510 ieee80211_radiotap_attach(ic, 511 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 512 RT2573_TX_RADIOTAP_PRESENT, 513 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 514 RT2573_RX_RADIOTAP_PRESENT); 515 516 if (bootverbose) 517 ieee80211_announce(ic); 518 519 return (0); 520 521detach: 522 rum_detach(self); 523 return (ENXIO); /* failure */ 524} 525 526static int 527rum_detach(device_t self) 528{ 529 struct rum_softc *sc = device_get_softc(self); 530 531 /* Prevent further ioctls */ 532 RUM_LOCK(sc); 533 sc->sc_detached = 1; 534 RUM_UNLOCK(sc); 535 536 /* stop all USB transfers */ 537 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 538 539 /* free TX list, if any */ 540 RUM_LOCK(sc); 541 rum_unsetup_tx_list(sc); 542 RUM_UNLOCK(sc); 543 544 if (sc->sc_ic.ic_softc == sc) 545 ieee80211_ifdetach(&sc->sc_ic); 546 mbufq_drain(&sc->sc_snd); 547 mtx_destroy(&sc->sc_mtx); 548 return (0); 549} 550 551static usb_error_t 552rum_do_request(struct rum_softc *sc, 553 struct usb_device_request *req, void *data) 554{ 555 usb_error_t err; 556 int ntries = 10; 557 558 while (ntries--) { 559 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 560 req, data, 0, NULL, 250 /* ms */); 561 if (err == 0) 562 break; 563 564 DPRINTFN(1, "Control request failed, %s (retrying)\n", 565 usbd_errstr(err)); 566 if (rum_pause(sc, hz / 100)) 567 break; 568 } 569 return (err); 570} 571 572static struct ieee80211vap * 573rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 574 enum ieee80211_opmode opmode, int flags, 575 const uint8_t bssid[IEEE80211_ADDR_LEN], 576 const uint8_t mac[IEEE80211_ADDR_LEN]) 577{ 578 struct rum_softc *sc = ic->ic_softc; 579 struct rum_vap *rvp; 580 struct ieee80211vap *vap; 581 582 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 583 return NULL; 584 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 585 vap = &rvp->vap; 586 /* enable s/w bmiss handling for sta mode */ 587 588 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 589 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 590 /* out of memory */ 591 free(rvp, M_80211_VAP); 592 return (NULL); 593 } 594 595 /* override state transition machine */ 596 rvp->newstate = vap->iv_newstate; 597 vap->iv_newstate = rum_newstate; 598 599 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 600 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 601 ieee80211_ratectl_init(vap); 602 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 603 /* complete setup */ 604 ieee80211_vap_attach(vap, ieee80211_media_change, 605 ieee80211_media_status, mac); 606 ic->ic_opmode = opmode; 607 return vap; 608} 609 610static void 611rum_vap_delete(struct ieee80211vap *vap) 612{ 613 struct rum_vap *rvp = RUM_VAP(vap); 614 struct ieee80211com *ic = vap->iv_ic; 615 616 usb_callout_drain(&rvp->ratectl_ch); 617 ieee80211_draintask(ic, &rvp->ratectl_task); 618 ieee80211_ratectl_deinit(vap); 619 ieee80211_vap_detach(vap); 620 free(rvp, M_80211_VAP); 621} 622 623static void 624rum_tx_free(struct rum_tx_data *data, int txerr) 625{ 626 struct rum_softc *sc = data->sc; 627 628 if (data->m != NULL) { 629 ieee80211_tx_complete(data->ni, data->m, txerr); 630 data->m = NULL; 631 data->ni = NULL; 632 } 633 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 634 sc->tx_nfree++; 635} 636 637static void 638rum_setup_tx_list(struct rum_softc *sc) 639{ 640 struct rum_tx_data *data; 641 int i; 642 643 sc->tx_nfree = 0; 644 STAILQ_INIT(&sc->tx_q); 645 STAILQ_INIT(&sc->tx_free); 646 647 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 648 data = &sc->tx_data[i]; 649 650 data->sc = sc; 651 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 652 sc->tx_nfree++; 653 } 654} 655 656static void 657rum_unsetup_tx_list(struct rum_softc *sc) 658{ 659 struct rum_tx_data *data; 660 int i; 661 662 /* make sure any subsequent use of the queues will fail */ 663 sc->tx_nfree = 0; 664 STAILQ_INIT(&sc->tx_q); 665 STAILQ_INIT(&sc->tx_free); 666 667 /* free up all node references and mbufs */ 668 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 669 data = &sc->tx_data[i]; 670 671 if (data->m != NULL) { 672 m_freem(data->m); 673 data->m = NULL; 674 } 675 if (data->ni != NULL) { 676 ieee80211_free_node(data->ni); 677 data->ni = NULL; 678 } 679 } 680} 681 682static int 683rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 684{ 685 struct rum_vap *rvp = RUM_VAP(vap); 686 struct ieee80211com *ic = vap->iv_ic; 687 struct rum_softc *sc = ic->ic_softc; 688 const struct ieee80211_txparam *tp; 689 enum ieee80211_state ostate; 690 struct ieee80211_node *ni; 691 692 ostate = vap->iv_state; 693 DPRINTF("%s -> %s\n", 694 ieee80211_state_name[ostate], 695 ieee80211_state_name[nstate]); 696 697 IEEE80211_UNLOCK(ic); 698 RUM_LOCK(sc); 699 usb_callout_stop(&rvp->ratectl_ch); 700 701 switch (nstate) { 702 case IEEE80211_S_INIT: 703 if (ostate == IEEE80211_S_RUN) 704 rum_abort_tsf_sync(sc); 705 706 break; 707 708 case IEEE80211_S_RUN: 709 ni = ieee80211_ref_node(vap->iv_bss); 710 711 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 712 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 713 RUM_UNLOCK(sc); 714 IEEE80211_LOCK(ic); 715 ieee80211_free_node(ni); 716 return (-1); 717 } 718 rum_update_slot(sc); 719 rum_enable_mrr(sc); 720 rum_set_txpreamble(sc); 721 rum_set_basicrates(sc); 722 IEEE80211_ADDR_COPY(ic->ic_macaddr, ni->ni_bssid); 723 rum_set_bssid(sc, ic->ic_macaddr); 724 } 725 726 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 727 vap->iv_opmode == IEEE80211_M_IBSS) 728 rum_prepare_beacon(sc, vap); 729 730 if (vap->iv_opmode != IEEE80211_M_MONITOR) 731 rum_enable_tsf_sync(sc); 732 else 733 rum_enable_tsf(sc); 734 735 /* enable automatic rate adaptation */ 736 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 737 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 738 rum_ratectl_start(sc, ni); 739 ieee80211_free_node(ni); 740 break; 741 default: 742 break; 743 } 744 RUM_UNLOCK(sc); 745 IEEE80211_LOCK(ic); 746 return (rvp->newstate(vap, nstate, arg)); 747} 748 749static void 750rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 751{ 752 struct rum_softc *sc = usbd_xfer_softc(xfer); 753 struct ieee80211vap *vap; 754 struct rum_tx_data *data; 755 struct mbuf *m; 756 struct usb_page_cache *pc; 757 unsigned int len; 758 int actlen, sumlen; 759 760 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 761 762 switch (USB_GET_STATE(xfer)) { 763 case USB_ST_TRANSFERRED: 764 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 765 766 /* free resources */ 767 data = usbd_xfer_get_priv(xfer); 768 rum_tx_free(data, 0); 769 usbd_xfer_set_priv(xfer, NULL); 770 771 /* FALLTHROUGH */ 772 case USB_ST_SETUP: 773tr_setup: 774 data = STAILQ_FIRST(&sc->tx_q); 775 if (data) { 776 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 777 m = data->m; 778 779 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 780 DPRINTFN(0, "data overflow, %u bytes\n", 781 m->m_pkthdr.len); 782 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 783 } 784 pc = usbd_xfer_get_frame(xfer, 0); 785 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 786 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 787 m->m_pkthdr.len); 788 789 vap = data->ni->ni_vap; 790 if (ieee80211_radiotap_active_vap(vap)) { 791 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 792 793 tap->wt_flags = 0; 794 tap->wt_rate = data->rate; 795 tap->wt_antenna = sc->tx_ant; 796 797 ieee80211_radiotap_tx(vap, m); 798 } 799 800 /* align end on a 4-bytes boundary */ 801 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 802 if ((len % 64) == 0) 803 len += 4; 804 805 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 806 m->m_pkthdr.len, len); 807 808 usbd_xfer_set_frame_len(xfer, 0, len); 809 usbd_xfer_set_priv(xfer, data); 810 811 usbd_transfer_submit(xfer); 812 } 813 rum_start(sc); 814 break; 815 816 default: /* Error */ 817 DPRINTFN(11, "transfer error, %s\n", 818 usbd_errstr(error)); 819 820 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 821 data = usbd_xfer_get_priv(xfer); 822 if (data != NULL) { 823 rum_tx_free(data, error); 824 usbd_xfer_set_priv(xfer, NULL); 825 } 826 827 if (error != USB_ERR_CANCELLED) { 828 if (error == USB_ERR_TIMEOUT) 829 device_printf(sc->sc_dev, "device timeout\n"); 830 831 /* 832 * Try to clear stall first, also if other 833 * errors occur, hence clearing stall 834 * introduces a 50 ms delay: 835 */ 836 usbd_xfer_set_stall(xfer); 837 goto tr_setup; 838 } 839 break; 840 } 841} 842 843static void 844rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 845{ 846 struct rum_softc *sc = usbd_xfer_softc(xfer); 847 struct ieee80211com *ic = &sc->sc_ic; 848 struct ieee80211_node *ni; 849 struct mbuf *m = NULL; 850 struct usb_page_cache *pc; 851 uint32_t flags; 852 uint8_t rssi = 0; 853 int len; 854 855 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 856 857 switch (USB_GET_STATE(xfer)) { 858 case USB_ST_TRANSFERRED: 859 860 DPRINTFN(15, "rx done, actlen=%d\n", len); 861 862 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 863 DPRINTF("%s: xfer too short %d\n", 864 device_get_nameunit(sc->sc_dev), len); 865 counter_u64_add(ic->ic_ierrors, 1); 866 goto tr_setup; 867 } 868 869 len -= RT2573_RX_DESC_SIZE; 870 pc = usbd_xfer_get_frame(xfer, 0); 871 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 872 873 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 874 flags = le32toh(sc->sc_rx_desc.flags); 875 if (flags & RT2573_RX_CRC_ERROR) { 876 /* 877 * This should not happen since we did not 878 * request to receive those frames when we 879 * filled RUM_TXRX_CSR2: 880 */ 881 DPRINTFN(5, "PHY or CRC error\n"); 882 counter_u64_add(ic->ic_ierrors, 1); 883 goto tr_setup; 884 } 885 886 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 887 if (m == NULL) { 888 DPRINTF("could not allocate mbuf\n"); 889 counter_u64_add(ic->ic_ierrors, 1); 890 goto tr_setup; 891 } 892 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 893 mtod(m, uint8_t *), len); 894 895 /* finalize mbuf */ 896 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 897 898 if (ieee80211_radiotap_active(ic)) { 899 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 900 901 /* XXX read tsf */ 902 tap->wr_flags = 0; 903 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 904 (flags & RT2573_RX_OFDM) ? 905 IEEE80211_T_OFDM : IEEE80211_T_CCK); 906 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 907 tap->wr_antnoise = RT2573_NOISE_FLOOR; 908 tap->wr_antenna = sc->rx_ant; 909 } 910 /* FALLTHROUGH */ 911 case USB_ST_SETUP: 912tr_setup: 913 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 914 usbd_transfer_submit(xfer); 915 916 /* 917 * At the end of a USB callback it is always safe to unlock 918 * the private mutex of a device! That is why we do the 919 * "ieee80211_input" here, and not some lines up! 920 */ 921 RUM_UNLOCK(sc); 922 if (m) { 923 ni = ieee80211_find_rxnode(ic, 924 mtod(m, struct ieee80211_frame_min *)); 925 if (ni != NULL) { 926 (void) ieee80211_input(ni, m, rssi, 927 RT2573_NOISE_FLOOR); 928 ieee80211_free_node(ni); 929 } else 930 (void) ieee80211_input_all(ic, m, rssi, 931 RT2573_NOISE_FLOOR); 932 } 933 RUM_LOCK(sc); 934 rum_start(sc); 935 return; 936 937 default: /* Error */ 938 if (error != USB_ERR_CANCELLED) { 939 /* try to clear stall first */ 940 usbd_xfer_set_stall(xfer); 941 goto tr_setup; 942 } 943 return; 944 } 945} 946 947static uint8_t 948rum_plcp_signal(int rate) 949{ 950 switch (rate) { 951 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 952 case 12: return 0xb; 953 case 18: return 0xf; 954 case 24: return 0xa; 955 case 36: return 0xe; 956 case 48: return 0x9; 957 case 72: return 0xd; 958 case 96: return 0x8; 959 case 108: return 0xc; 960 961 /* CCK rates (NB: not IEEE std, device-specific) */ 962 case 2: return 0x0; 963 case 4: return 0x1; 964 case 11: return 0x2; 965 case 22: return 0x3; 966 } 967 return 0xff; /* XXX unsupported/unknown rate */ 968} 969 970static void 971rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 972 uint32_t flags, uint16_t xflags, int len, int rate) 973{ 974 struct ieee80211com *ic = &sc->sc_ic; 975 uint16_t plcp_length; 976 int remainder; 977 978 desc->flags = htole32(flags); 979 desc->flags |= htole32(RT2573_TX_VALID); 980 desc->flags |= htole32(len << 16); 981 982 desc->xflags = htole16(xflags); 983 984 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 985 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 986 987 /* setup PLCP fields */ 988 desc->plcp_signal = rum_plcp_signal(rate); 989 desc->plcp_service = 4; 990 991 len += IEEE80211_CRC_LEN; 992 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 993 desc->flags |= htole32(RT2573_TX_OFDM); 994 995 plcp_length = len & 0xfff; 996 desc->plcp_length_hi = plcp_length >> 6; 997 desc->plcp_length_lo = plcp_length & 0x3f; 998 } else { 999 if (rate == 0) 1000 rate = 2; /* avoid division by zero */ 1001 plcp_length = (16 * len + rate - 1) / rate; 1002 if (rate == 22) { 1003 remainder = (16 * len) % 22; 1004 if (remainder != 0 && remainder < 7) 1005 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1006 } 1007 desc->plcp_length_hi = plcp_length >> 8; 1008 desc->plcp_length_lo = plcp_length & 0xff; 1009 1010 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1011 desc->plcp_signal |= 0x08; 1012 } 1013} 1014 1015static int 1016rum_sendprot(struct rum_softc *sc, 1017 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1018{ 1019 struct ieee80211com *ic = ni->ni_ic; 1020 const struct ieee80211_frame *wh; 1021 struct rum_tx_data *data; 1022 struct mbuf *mprot; 1023 int protrate, ackrate, pktlen, flags, isshort; 1024 uint16_t dur; 1025 1026 RUM_LOCK_ASSERT(sc, MA_OWNED); 1027 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1028 ("protection %d", prot)); 1029 1030 wh = mtod(m, const struct ieee80211_frame *); 1031 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1032 1033 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1034 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1035 1036 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1037 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1038 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1039 flags = RT2573_TX_MORE_FRAG; 1040 if (prot == IEEE80211_PROT_RTSCTS) { 1041 /* NB: CTS is the same size as an ACK */ 1042 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1043 flags |= RT2573_TX_NEED_ACK; 1044 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1045 } else { 1046 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1047 } 1048 if (mprot == NULL) { 1049 /* XXX stat + msg */ 1050 return (ENOBUFS); 1051 } 1052 data = STAILQ_FIRST(&sc->tx_free); 1053 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1054 sc->tx_nfree--; 1055 1056 data->m = mprot; 1057 data->ni = ieee80211_ref_node(ni); 1058 data->rate = protrate; 1059 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1060 1061 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1062 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1063 1064 return 0; 1065} 1066 1067static int 1068rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1069{ 1070 struct ieee80211vap *vap = ni->ni_vap; 1071 struct ieee80211com *ic = &sc->sc_ic; 1072 struct rum_tx_data *data; 1073 struct ieee80211_frame *wh; 1074 const struct ieee80211_txparam *tp; 1075 struct ieee80211_key *k; 1076 uint32_t flags = 0; 1077 uint16_t dur; 1078 1079 RUM_LOCK_ASSERT(sc, MA_OWNED); 1080 1081 data = STAILQ_FIRST(&sc->tx_free); 1082 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1083 sc->tx_nfree--; 1084 1085 wh = mtod(m0, struct ieee80211_frame *); 1086 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1087 k = ieee80211_crypto_encap(ni, m0); 1088 if (k == NULL) { 1089 m_freem(m0); 1090 return ENOBUFS; 1091 } 1092 wh = mtod(m0, struct ieee80211_frame *); 1093 } 1094 1095 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1096 1097 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1098 flags |= RT2573_TX_NEED_ACK; 1099 1100 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1101 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1102 USETW(wh->i_dur, dur); 1103 1104 /* tell hardware to add timestamp for probe responses */ 1105 if ((wh->i_fc[0] & 1106 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1107 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1108 flags |= RT2573_TX_TIMESTAMP; 1109 } 1110 1111 data->m = m0; 1112 data->ni = ni; 1113 data->rate = tp->mgmtrate; 1114 1115 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1116 1117 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1118 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1119 1120 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1121 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1122 1123 return (0); 1124} 1125 1126static int 1127rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1128 const struct ieee80211_bpf_params *params) 1129{ 1130 struct ieee80211com *ic = ni->ni_ic; 1131 struct rum_tx_data *data; 1132 uint32_t flags; 1133 int rate, error; 1134 1135 RUM_LOCK_ASSERT(sc, MA_OWNED); 1136 KASSERT(params != NULL, ("no raw xmit params")); 1137 1138 rate = params->ibp_rate0; 1139 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1140 m_freem(m0); 1141 return EINVAL; 1142 } 1143 flags = 0; 1144 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1145 flags |= RT2573_TX_NEED_ACK; 1146 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1147 error = rum_sendprot(sc, m0, ni, 1148 params->ibp_flags & IEEE80211_BPF_RTS ? 1149 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1150 rate); 1151 if (error || sc->tx_nfree == 0) { 1152 m_freem(m0); 1153 return ENOBUFS; 1154 } 1155 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1156 } 1157 1158 data = STAILQ_FIRST(&sc->tx_free); 1159 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1160 sc->tx_nfree--; 1161 1162 data->m = m0; 1163 data->ni = ni; 1164 data->rate = rate; 1165 1166 /* XXX need to setup descriptor ourself */ 1167 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1168 1169 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1170 m0->m_pkthdr.len, rate); 1171 1172 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1173 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1174 1175 return 0; 1176} 1177 1178static int 1179rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1180{ 1181 struct ieee80211vap *vap = ni->ni_vap; 1182 struct ieee80211com *ic = &sc->sc_ic; 1183 struct rum_tx_data *data; 1184 struct ieee80211_frame *wh; 1185 const struct ieee80211_txparam *tp; 1186 struct ieee80211_key *k; 1187 uint32_t flags = 0; 1188 uint16_t dur; 1189 int error, rate; 1190 1191 RUM_LOCK_ASSERT(sc, MA_OWNED); 1192 1193 wh = mtod(m0, struct ieee80211_frame *); 1194 1195 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1196 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1197 rate = tp->mcastrate; 1198 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1199 rate = tp->ucastrate; 1200 else 1201 rate = ni->ni_txrate; 1202 1203 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1204 k = ieee80211_crypto_encap(ni, m0); 1205 if (k == NULL) { 1206 m_freem(m0); 1207 return ENOBUFS; 1208 } 1209 1210 /* packet header may have moved, reset our local pointer */ 1211 wh = mtod(m0, struct ieee80211_frame *); 1212 } 1213 1214 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1215 int prot = IEEE80211_PROT_NONE; 1216 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1217 prot = IEEE80211_PROT_RTSCTS; 1218 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1219 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1220 prot = ic->ic_protmode; 1221 if (prot != IEEE80211_PROT_NONE) { 1222 error = rum_sendprot(sc, m0, ni, prot, rate); 1223 if (error || sc->tx_nfree == 0) { 1224 m_freem(m0); 1225 return ENOBUFS; 1226 } 1227 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1228 } 1229 } 1230 1231 data = STAILQ_FIRST(&sc->tx_free); 1232 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1233 sc->tx_nfree--; 1234 1235 data->m = m0; 1236 data->ni = ni; 1237 data->rate = rate; 1238 1239 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1240 flags |= RT2573_TX_NEED_ACK; 1241 flags |= RT2573_TX_MORE_FRAG; 1242 1243 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1244 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1245 USETW(wh->i_dur, dur); 1246 } 1247 1248 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1249 1250 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1251 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1252 1253 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1254 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1255 1256 return 0; 1257} 1258 1259static int 1260rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1261{ 1262 struct rum_softc *sc = ic->ic_softc; 1263 int error; 1264 1265 RUM_LOCK(sc); 1266 if (!sc->sc_running) { 1267 RUM_UNLOCK(sc); 1268 return (ENXIO); 1269 } 1270 error = mbufq_enqueue(&sc->sc_snd, m); 1271 if (error) { 1272 RUM_UNLOCK(sc); 1273 return (error); 1274 } 1275 rum_start(sc); 1276 RUM_UNLOCK(sc); 1277 1278 return (0); 1279} 1280 1281static void 1282rum_start(struct rum_softc *sc) 1283{ 1284 struct ieee80211_node *ni; 1285 struct mbuf *m; 1286 1287 RUM_LOCK_ASSERT(sc, MA_OWNED); 1288 1289 if (!sc->sc_running) 1290 return; 1291 1292 while (sc->tx_nfree >= RUM_TX_MINFREE && 1293 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1294 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1295 if (rum_tx_data(sc, m, ni) != 0) { 1296 if_inc_counter(ni->ni_vap->iv_ifp, 1297 IFCOUNTER_OERRORS, 1); 1298 ieee80211_free_node(ni); 1299 break; 1300 } 1301 } 1302} 1303 1304static void 1305rum_parent(struct ieee80211com *ic) 1306{ 1307 struct rum_softc *sc = ic->ic_softc; 1308 int startall = 0; 1309 1310 RUM_LOCK(sc); 1311 if (sc->sc_detached) { 1312 RUM_UNLOCK(sc); 1313 return; 1314 } 1315 if (ic->ic_nrunning > 0) { 1316 if (!sc->sc_running) { 1317 rum_init(sc); 1318 startall = 1; 1319 } else 1320 rum_setpromisc(sc); 1321 } else if (sc->sc_running) 1322 rum_stop(sc); 1323 RUM_UNLOCK(sc); 1324 if (startall) 1325 ieee80211_start_all(ic); 1326} 1327 1328static void 1329rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1330{ 1331 struct usb_device_request req; 1332 usb_error_t error; 1333 1334 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1335 req.bRequest = RT2573_READ_EEPROM; 1336 USETW(req.wValue, 0); 1337 USETW(req.wIndex, addr); 1338 USETW(req.wLength, len); 1339 1340 error = rum_do_request(sc, &req, buf); 1341 if (error != 0) { 1342 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1343 usbd_errstr(error)); 1344 } 1345} 1346 1347static uint32_t 1348rum_read(struct rum_softc *sc, uint16_t reg) 1349{ 1350 uint32_t val; 1351 1352 rum_read_multi(sc, reg, &val, sizeof val); 1353 1354 return le32toh(val); 1355} 1356 1357static void 1358rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1359{ 1360 struct usb_device_request req; 1361 usb_error_t error; 1362 1363 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1364 req.bRequest = RT2573_READ_MULTI_MAC; 1365 USETW(req.wValue, 0); 1366 USETW(req.wIndex, reg); 1367 USETW(req.wLength, len); 1368 1369 error = rum_do_request(sc, &req, buf); 1370 if (error != 0) { 1371 device_printf(sc->sc_dev, 1372 "could not multi read MAC register: %s\n", 1373 usbd_errstr(error)); 1374 } 1375} 1376 1377static usb_error_t 1378rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1379{ 1380 uint32_t tmp = htole32(val); 1381 1382 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1383} 1384 1385static usb_error_t 1386rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1387{ 1388 struct usb_device_request req; 1389 usb_error_t error; 1390 size_t offset; 1391 1392 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1393 req.bRequest = RT2573_WRITE_MULTI_MAC; 1394 USETW(req.wValue, 0); 1395 1396 /* write at most 64 bytes at a time */ 1397 for (offset = 0; offset < len; offset += 64) { 1398 USETW(req.wIndex, reg + offset); 1399 USETW(req.wLength, MIN(len - offset, 64)); 1400 1401 error = rum_do_request(sc, &req, (char *)buf + offset); 1402 if (error != 0) { 1403 device_printf(sc->sc_dev, 1404 "could not multi write MAC register: %s\n", 1405 usbd_errstr(error)); 1406 return (error); 1407 } 1408 } 1409 1410 return (USB_ERR_NORMAL_COMPLETION); 1411} 1412 1413static void 1414rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1415{ 1416 uint32_t tmp; 1417 int ntries; 1418 1419 DPRINTFN(2, "reg=0x%08x\n", reg); 1420 1421 for (ntries = 0; ntries < 100; ntries++) { 1422 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1423 break; 1424 if (rum_pause(sc, hz / 100)) 1425 break; 1426 } 1427 if (ntries == 100) { 1428 device_printf(sc->sc_dev, "could not write to BBP\n"); 1429 return; 1430 } 1431 1432 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1433 rum_write(sc, RT2573_PHY_CSR3, tmp); 1434} 1435 1436static uint8_t 1437rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1438{ 1439 uint32_t val; 1440 int ntries; 1441 1442 DPRINTFN(2, "reg=0x%08x\n", reg); 1443 1444 for (ntries = 0; ntries < 100; ntries++) { 1445 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1446 break; 1447 if (rum_pause(sc, hz / 100)) 1448 break; 1449 } 1450 if (ntries == 100) { 1451 device_printf(sc->sc_dev, "could not read BBP\n"); 1452 return 0; 1453 } 1454 1455 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1456 rum_write(sc, RT2573_PHY_CSR3, val); 1457 1458 for (ntries = 0; ntries < 100; ntries++) { 1459 val = rum_read(sc, RT2573_PHY_CSR3); 1460 if (!(val & RT2573_BBP_BUSY)) 1461 return val & 0xff; 1462 if (rum_pause(sc, hz / 100)) 1463 break; 1464 } 1465 1466 device_printf(sc->sc_dev, "could not read BBP\n"); 1467 return 0; 1468} 1469 1470static void 1471rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1472{ 1473 uint32_t tmp; 1474 int ntries; 1475 1476 for (ntries = 0; ntries < 100; ntries++) { 1477 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1478 break; 1479 if (rum_pause(sc, hz / 100)) 1480 break; 1481 } 1482 if (ntries == 100) { 1483 device_printf(sc->sc_dev, "could not write to RF\n"); 1484 return; 1485 } 1486 1487 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1488 (reg & 3); 1489 rum_write(sc, RT2573_PHY_CSR4, tmp); 1490 1491 /* remember last written value in sc */ 1492 sc->rf_regs[reg] = val; 1493 1494 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1495} 1496 1497static void 1498rum_select_antenna(struct rum_softc *sc) 1499{ 1500 uint8_t bbp4, bbp77; 1501 uint32_t tmp; 1502 1503 bbp4 = rum_bbp_read(sc, 4); 1504 bbp77 = rum_bbp_read(sc, 77); 1505 1506 /* TBD */ 1507 1508 /* make sure Rx is disabled before switching antenna */ 1509 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1510 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1511 1512 rum_bbp_write(sc, 4, bbp4); 1513 rum_bbp_write(sc, 77, bbp77); 1514 1515 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1516} 1517 1518/* 1519 * Enable multi-rate retries for frames sent at OFDM rates. 1520 * In 802.11b/g mode, allow fallback to CCK rates. 1521 */ 1522static void 1523rum_enable_mrr(struct rum_softc *sc) 1524{ 1525 struct ieee80211com *ic = &sc->sc_ic; 1526 uint32_t tmp; 1527 1528 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1529 1530 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1531 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1532 tmp |= RT2573_MRR_CCK_FALLBACK; 1533 tmp |= RT2573_MRR_ENABLED; 1534 1535 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1536} 1537 1538static void 1539rum_set_txpreamble(struct rum_softc *sc) 1540{ 1541 struct ieee80211com *ic = &sc->sc_ic; 1542 uint32_t tmp; 1543 1544 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1545 1546 tmp &= ~RT2573_SHORT_PREAMBLE; 1547 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1548 tmp |= RT2573_SHORT_PREAMBLE; 1549 1550 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1551} 1552 1553static void 1554rum_set_basicrates(struct rum_softc *sc) 1555{ 1556 struct ieee80211com *ic = &sc->sc_ic; 1557 1558 /* update basic rate set */ 1559 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1560 /* 11b basic rates: 1, 2Mbps */ 1561 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1562 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1563 /* 11a basic rates: 6, 12, 24Mbps */ 1564 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1565 } else { 1566 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1567 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1568 } 1569} 1570 1571/* 1572 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1573 * driver. 1574 */ 1575static void 1576rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1577{ 1578 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1579 uint32_t tmp; 1580 1581 /* update all BBP registers that depend on the band */ 1582 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1583 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1584 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1585 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1586 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1587 } 1588 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1589 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1590 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1591 } 1592 1593 sc->bbp17 = bbp17; 1594 rum_bbp_write(sc, 17, bbp17); 1595 rum_bbp_write(sc, 96, bbp96); 1596 rum_bbp_write(sc, 104, bbp104); 1597 1598 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1599 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1600 rum_bbp_write(sc, 75, 0x80); 1601 rum_bbp_write(sc, 86, 0x80); 1602 rum_bbp_write(sc, 88, 0x80); 1603 } 1604 1605 rum_bbp_write(sc, 35, bbp35); 1606 rum_bbp_write(sc, 97, bbp97); 1607 rum_bbp_write(sc, 98, bbp98); 1608 1609 tmp = rum_read(sc, RT2573_PHY_CSR0); 1610 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1611 if (IEEE80211_IS_CHAN_2GHZ(c)) 1612 tmp |= RT2573_PA_PE_2GHZ; 1613 else 1614 tmp |= RT2573_PA_PE_5GHZ; 1615 rum_write(sc, RT2573_PHY_CSR0, tmp); 1616} 1617 1618static void 1619rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1620{ 1621 struct ieee80211com *ic = &sc->sc_ic; 1622 const struct rfprog *rfprog; 1623 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1624 int8_t power; 1625 int i, chan; 1626 1627 chan = ieee80211_chan2ieee(ic, c); 1628 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1629 return; 1630 1631 /* select the appropriate RF settings based on what EEPROM says */ 1632 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1633 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1634 1635 /* find the settings for this channel (we know it exists) */ 1636 for (i = 0; rfprog[i].chan != chan; i++); 1637 1638 power = sc->txpow[i]; 1639 if (power < 0) { 1640 bbp94 += power; 1641 power = 0; 1642 } else if (power > 31) { 1643 bbp94 += power - 31; 1644 power = 31; 1645 } 1646 1647 /* 1648 * If we are switching from the 2GHz band to the 5GHz band or 1649 * vice-versa, BBP registers need to be reprogrammed. 1650 */ 1651 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1652 rum_select_band(sc, c); 1653 rum_select_antenna(sc); 1654 } 1655 ic->ic_curchan = c; 1656 1657 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1658 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1659 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1660 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1661 1662 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1663 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1664 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1665 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1666 1667 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1668 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1669 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1670 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1671 1672 rum_pause(sc, hz / 100); 1673 1674 /* enable smart mode for MIMO-capable RFs */ 1675 bbp3 = rum_bbp_read(sc, 3); 1676 1677 bbp3 &= ~RT2573_SMART_MODE; 1678 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1679 bbp3 |= RT2573_SMART_MODE; 1680 1681 rum_bbp_write(sc, 3, bbp3); 1682 1683 if (bbp94 != RT2573_BBPR94_DEFAULT) 1684 rum_bbp_write(sc, 94, bbp94); 1685 1686 /* give the chip some extra time to do the switchover */ 1687 rum_pause(sc, hz / 100); 1688} 1689 1690/* 1691 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1692 * and HostAP operating modes. 1693 */ 1694static void 1695rum_enable_tsf_sync(struct rum_softc *sc) 1696{ 1697 struct ieee80211com *ic = &sc->sc_ic; 1698 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1699 uint32_t tmp; 1700 1701 if (vap->iv_opmode != IEEE80211_M_STA) { 1702 /* 1703 * Change default 16ms TBTT adjustment to 8ms. 1704 * Must be done before enabling beacon generation. 1705 */ 1706 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1707 } 1708 1709 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1710 1711 /* set beacon interval (in 1/16ms unit) */ 1712 tmp |= vap->iv_bss->ni_intval * 16; 1713 1714 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1715 if (vap->iv_opmode == IEEE80211_M_STA) 1716 tmp |= RT2573_TSF_MODE(1); 1717 else 1718 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1719 1720 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1721} 1722 1723static void 1724rum_enable_tsf(struct rum_softc *sc) 1725{ 1726 rum_write(sc, RT2573_TXRX_CSR9, 1727 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1728 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1729} 1730 1731static void 1732rum_abort_tsf_sync(struct rum_softc *sc) 1733{ 1734 uint32_t tmp; 1735 1736 tmp = rum_read(sc, RT2573_TXRX_CSR9); 1737 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 1738} 1739 1740static void 1741rum_update_slot(struct rum_softc *sc) 1742{ 1743 struct ieee80211com *ic = &sc->sc_ic; 1744 uint8_t slottime; 1745 uint32_t tmp; 1746 1747 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1748 1749 tmp = rum_read(sc, RT2573_MAC_CSR9); 1750 tmp = (tmp & ~0xff) | slottime; 1751 rum_write(sc, RT2573_MAC_CSR9, tmp); 1752 1753 DPRINTF("setting slot time to %uus\n", slottime); 1754} 1755 1756static void 1757rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1758{ 1759 uint32_t tmp; 1760 1761 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1762 rum_write(sc, RT2573_MAC_CSR4, tmp); 1763 1764 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1765 rum_write(sc, RT2573_MAC_CSR5, tmp); 1766} 1767 1768static void 1769rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1770{ 1771 uint32_t tmp; 1772 1773 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1774 rum_write(sc, RT2573_MAC_CSR2, tmp); 1775 1776 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1777 rum_write(sc, RT2573_MAC_CSR3, tmp); 1778} 1779 1780static void 1781rum_setpromisc(struct rum_softc *sc) 1782{ 1783 uint32_t tmp; 1784 1785 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1786 1787 tmp &= ~RT2573_DROP_NOT_TO_ME; 1788 if (sc->sc_ic.ic_promisc == 0) 1789 tmp |= RT2573_DROP_NOT_TO_ME; 1790 1791 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1792 1793 DPRINTF("%s promiscuous mode\n", sc->sc_ic.ic_promisc > 0 ? 1794 "entering" : "leaving"); 1795} 1796 1797static void 1798rum_update_promisc(struct ieee80211com *ic) 1799{ 1800 struct rum_softc *sc = ic->ic_softc; 1801 1802 RUM_LOCK(sc); 1803 if (!sc->sc_running) { 1804 RUM_UNLOCK(sc); 1805 return; 1806 } 1807 rum_setpromisc(sc); 1808 RUM_UNLOCK(sc); 1809} 1810 1811static void 1812rum_update_mcast(struct ieee80211com *ic) 1813{ 1814 static int warning_printed; 1815 1816 if (warning_printed == 0) { 1817 ic_printf(ic, "need to implement %s\n", __func__); 1818 warning_printed = 1; 1819 } 1820} 1821 1822static const char * 1823rum_get_rf(int rev) 1824{ 1825 switch (rev) { 1826 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1827 case RT2573_RF_2528: return "RT2528"; 1828 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1829 case RT2573_RF_5226: return "RT5226"; 1830 default: return "unknown"; 1831 } 1832} 1833 1834static void 1835rum_read_eeprom(struct rum_softc *sc) 1836{ 1837 uint16_t val; 1838#ifdef RUM_DEBUG 1839 int i; 1840#endif 1841 1842 /* read MAC address */ 1843 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 1844 1845 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1846 val = le16toh(val); 1847 sc->rf_rev = (val >> 11) & 0x1f; 1848 sc->hw_radio = (val >> 10) & 0x1; 1849 sc->rx_ant = (val >> 4) & 0x3; 1850 sc->tx_ant = (val >> 2) & 0x3; 1851 sc->nb_ant = val & 0x3; 1852 1853 DPRINTF("RF revision=%d\n", sc->rf_rev); 1854 1855 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1856 val = le16toh(val); 1857 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1858 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1859 1860 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1861 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1862 1863 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1864 val = le16toh(val); 1865 if ((val & 0xff) != 0xff) 1866 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1867 1868 /* Only [-10, 10] is valid */ 1869 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1870 sc->rssi_2ghz_corr = 0; 1871 1872 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1873 val = le16toh(val); 1874 if ((val & 0xff) != 0xff) 1875 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1876 1877 /* Only [-10, 10] is valid */ 1878 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1879 sc->rssi_5ghz_corr = 0; 1880 1881 if (sc->ext_2ghz_lna) 1882 sc->rssi_2ghz_corr -= 14; 1883 if (sc->ext_5ghz_lna) 1884 sc->rssi_5ghz_corr -= 14; 1885 1886 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1887 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1888 1889 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1890 val = le16toh(val); 1891 if ((val & 0xff) != 0xff) 1892 sc->rffreq = val & 0xff; 1893 1894 DPRINTF("RF freq=%d\n", sc->rffreq); 1895 1896 /* read Tx power for all a/b/g channels */ 1897 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1898 /* XXX default Tx power for 802.11a channels */ 1899 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1900#ifdef RUM_DEBUG 1901 for (i = 0; i < 14; i++) 1902 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1903#endif 1904 1905 /* read default values for BBP registers */ 1906 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1907#ifdef RUM_DEBUG 1908 for (i = 0; i < 14; i++) { 1909 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1910 continue; 1911 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1912 sc->bbp_prom[i].val); 1913 } 1914#endif 1915} 1916 1917static int 1918rum_bbp_init(struct rum_softc *sc) 1919{ 1920 int i, ntries; 1921 1922 /* wait for BBP to be ready */ 1923 for (ntries = 0; ntries < 100; ntries++) { 1924 const uint8_t val = rum_bbp_read(sc, 0); 1925 if (val != 0 && val != 0xff) 1926 break; 1927 if (rum_pause(sc, hz / 100)) 1928 break; 1929 } 1930 if (ntries == 100) { 1931 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1932 return EIO; 1933 } 1934 1935 /* initialize BBP registers to default values */ 1936 for (i = 0; i < N(rum_def_bbp); i++) 1937 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1938 1939 /* write vendor-specific BBP values (from EEPROM) */ 1940 for (i = 0; i < 16; i++) { 1941 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1942 continue; 1943 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1944 } 1945 1946 return 0; 1947} 1948 1949static void 1950rum_init(struct rum_softc *sc) 1951{ 1952 struct ieee80211com *ic = &sc->sc_ic; 1953 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1954 uint32_t tmp; 1955 usb_error_t error; 1956 int i, ntries; 1957 1958 RUM_LOCK_ASSERT(sc, MA_OWNED); 1959 1960 rum_stop(sc); 1961 1962 /* initialize MAC registers to default values */ 1963 for (i = 0; i < N(rum_def_mac); i++) 1964 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1965 1966 /* set host ready */ 1967 rum_write(sc, RT2573_MAC_CSR1, 3); 1968 rum_write(sc, RT2573_MAC_CSR1, 0); 1969 1970 /* wait for BBP/RF to wakeup */ 1971 for (ntries = 0; ntries < 100; ntries++) { 1972 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1973 break; 1974 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 1975 if (rum_pause(sc, hz / 100)) 1976 break; 1977 } 1978 if (ntries == 100) { 1979 device_printf(sc->sc_dev, 1980 "timeout waiting for BBP/RF to wakeup\n"); 1981 goto fail; 1982 } 1983 1984 if ((error = rum_bbp_init(sc)) != 0) 1985 goto fail; 1986 1987 /* select default channel */ 1988 rum_select_band(sc, ic->ic_curchan); 1989 rum_select_antenna(sc); 1990 rum_set_chan(sc, ic->ic_curchan); 1991 1992 /* clear STA registers */ 1993 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 1994 1995 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 1996 1997 /* initialize ASIC */ 1998 rum_write(sc, RT2573_MAC_CSR1, 4); 1999 2000 /* 2001 * Allocate Tx and Rx xfer queues. 2002 */ 2003 rum_setup_tx_list(sc); 2004 2005 /* update Rx filter */ 2006 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2007 2008 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2009 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2010 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2011 RT2573_DROP_ACKCTS; 2012 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2013 tmp |= RT2573_DROP_TODS; 2014 if (ic->ic_promisc == 0) 2015 tmp |= RT2573_DROP_NOT_TO_ME; 2016 } 2017 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2018 2019 sc->sc_running = 1; 2020 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2021 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2022 return; 2023 2024fail: rum_stop(sc); 2025#undef N 2026} 2027 2028static void 2029rum_stop(struct rum_softc *sc) 2030{ 2031 uint32_t tmp; 2032 2033 RUM_LOCK_ASSERT(sc, MA_OWNED); 2034 2035 sc->sc_running = 0; 2036 2037 RUM_UNLOCK(sc); 2038 2039 /* 2040 * Drain the USB transfers, if not already drained: 2041 */ 2042 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2043 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2044 2045 RUM_LOCK(sc); 2046 2047 rum_unsetup_tx_list(sc); 2048 2049 /* disable Rx */ 2050 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2051 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2052 2053 /* reset ASIC */ 2054 rum_write(sc, RT2573_MAC_CSR1, 3); 2055 rum_write(sc, RT2573_MAC_CSR1, 0); 2056} 2057 2058static void 2059rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2060{ 2061 struct usb_device_request req; 2062 uint16_t reg = RT2573_MCU_CODE_BASE; 2063 usb_error_t err; 2064 2065 /* copy firmware image into NIC */ 2066 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2067 err = rum_write(sc, reg, UGETDW(ucode)); 2068 if (err) { 2069 /* firmware already loaded ? */ 2070 device_printf(sc->sc_dev, "Firmware load " 2071 "failure! (ignored)\n"); 2072 break; 2073 } 2074 } 2075 2076 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2077 req.bRequest = RT2573_MCU_CNTL; 2078 USETW(req.wValue, RT2573_MCU_RUN); 2079 USETW(req.wIndex, 0); 2080 USETW(req.wLength, 0); 2081 2082 err = rum_do_request(sc, &req, NULL); 2083 if (err != 0) { 2084 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2085 usbd_errstr(err)); 2086 } 2087 2088 /* give the chip some time to boot */ 2089 rum_pause(sc, hz / 8); 2090} 2091 2092static void 2093rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2094{ 2095 struct ieee80211com *ic = vap->iv_ic; 2096 const struct ieee80211_txparam *tp; 2097 struct rum_tx_desc desc; 2098 struct mbuf *m0; 2099 2100 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2101 return; 2102 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2103 return; 2104 2105 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2106 if (m0 == NULL) 2107 return; 2108 2109 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2110 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2111 m0->m_pkthdr.len, tp->mgmtrate); 2112 2113 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2114 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2115 2116 /* copy beacon header and payload into NIC memory */ 2117 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2118 m0->m_pkthdr.len); 2119 2120 m_freem(m0); 2121} 2122 2123static int 2124rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2125 const struct ieee80211_bpf_params *params) 2126{ 2127 struct rum_softc *sc = ni->ni_ic->ic_softc; 2128 2129 RUM_LOCK(sc); 2130 /* prevent management frames from being sent if we're not ready */ 2131 if (!sc->sc_running) { 2132 RUM_UNLOCK(sc); 2133 m_freem(m); 2134 ieee80211_free_node(ni); 2135 return ENETDOWN; 2136 } 2137 if (sc->tx_nfree < RUM_TX_MINFREE) { 2138 RUM_UNLOCK(sc); 2139 m_freem(m); 2140 ieee80211_free_node(ni); 2141 return EIO; 2142 } 2143 2144 if (params == NULL) { 2145 /* 2146 * Legacy path; interpret frame contents to decide 2147 * precisely how to send the frame. 2148 */ 2149 if (rum_tx_mgt(sc, m, ni) != 0) 2150 goto bad; 2151 } else { 2152 /* 2153 * Caller supplied explicit parameters to use in 2154 * sending the frame. 2155 */ 2156 if (rum_tx_raw(sc, m, ni, params) != 0) 2157 goto bad; 2158 } 2159 RUM_UNLOCK(sc); 2160 2161 return 0; 2162bad: 2163 RUM_UNLOCK(sc); 2164 ieee80211_free_node(ni); 2165 return EIO; 2166} 2167 2168static void 2169rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2170{ 2171 struct ieee80211vap *vap = ni->ni_vap; 2172 struct rum_vap *rvp = RUM_VAP(vap); 2173 2174 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2175 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2176 2177 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2178} 2179 2180static void 2181rum_ratectl_timeout(void *arg) 2182{ 2183 struct rum_vap *rvp = arg; 2184 struct ieee80211vap *vap = &rvp->vap; 2185 struct ieee80211com *ic = vap->iv_ic; 2186 2187 ieee80211_runtask(ic, &rvp->ratectl_task); 2188} 2189 2190static void 2191rum_ratectl_task(void *arg, int pending) 2192{ 2193 struct rum_vap *rvp = arg; 2194 struct ieee80211vap *vap = &rvp->vap; 2195 struct ieee80211com *ic = vap->iv_ic; 2196 struct rum_softc *sc = ic->ic_softc; 2197 struct ieee80211_node *ni; 2198 int ok, fail; 2199 int sum, retrycnt; 2200 2201 RUM_LOCK(sc); 2202 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2203 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2204 2205 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2206 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2207 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2208 sum = ok+fail; 2209 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2210 2211 ni = ieee80211_ref_node(vap->iv_bss); 2212 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2213 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2214 ieee80211_free_node(ni); 2215 2216 /* count TX retry-fail as Tx errors */ 2217 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2218 2219 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2220 RUM_UNLOCK(sc); 2221} 2222 2223static void 2224rum_scan_start(struct ieee80211com *ic) 2225{ 2226 struct rum_softc *sc = ic->ic_softc; 2227 2228 RUM_LOCK(sc); 2229 rum_abort_tsf_sync(sc); 2230 rum_set_bssid(sc, ieee80211broadcastaddr); 2231 RUM_UNLOCK(sc); 2232 2233} 2234 2235static void 2236rum_scan_end(struct ieee80211com *ic) 2237{ 2238 struct rum_softc *sc = ic->ic_softc; 2239 2240 RUM_LOCK(sc); 2241 rum_enable_tsf_sync(sc); 2242 rum_set_bssid(sc, ic->ic_macaddr); 2243 RUM_UNLOCK(sc); 2244 2245} 2246 2247static void 2248rum_set_channel(struct ieee80211com *ic) 2249{ 2250 struct rum_softc *sc = ic->ic_softc; 2251 2252 RUM_LOCK(sc); 2253 rum_set_chan(sc, ic->ic_curchan); 2254 RUM_UNLOCK(sc); 2255} 2256 2257static int 2258rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2259{ 2260 struct ieee80211com *ic = &sc->sc_ic; 2261 int lna, agc, rssi; 2262 2263 lna = (raw >> 5) & 0x3; 2264 agc = raw & 0x1f; 2265 2266 if (lna == 0) { 2267 /* 2268 * No RSSI mapping 2269 * 2270 * NB: Since RSSI is relative to noise floor, -1 is 2271 * adequate for caller to know error happened. 2272 */ 2273 return -1; 2274 } 2275 2276 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2277 2278 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2279 rssi += sc->rssi_2ghz_corr; 2280 2281 if (lna == 1) 2282 rssi -= 64; 2283 else if (lna == 2) 2284 rssi -= 74; 2285 else if (lna == 3) 2286 rssi -= 90; 2287 } else { 2288 rssi += sc->rssi_5ghz_corr; 2289 2290 if (!sc->ext_5ghz_lna && lna != 1) 2291 rssi += 4; 2292 2293 if (lna == 1) 2294 rssi -= 64; 2295 else if (lna == 2) 2296 rssi -= 86; 2297 else if (lna == 3) 2298 rssi -= 100; 2299 } 2300 return rssi; 2301} 2302 2303static int 2304rum_pause(struct rum_softc *sc, int timeout) 2305{ 2306 2307 usb_pause_mtx(&sc->sc_mtx, timeout); 2308 return (0); 2309} 2310 2311static device_method_t rum_methods[] = { 2312 /* Device interface */ 2313 DEVMETHOD(device_probe, rum_match), 2314 DEVMETHOD(device_attach, rum_attach), 2315 DEVMETHOD(device_detach, rum_detach), 2316 DEVMETHOD_END 2317}; 2318 2319static driver_t rum_driver = { 2320 .name = "rum", 2321 .methods = rum_methods, 2322 .size = sizeof(struct rum_softc), 2323}; 2324 2325static devclass_t rum_devclass; 2326 2327DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2328MODULE_DEPEND(rum, wlan, 1, 1, 1); 2329MODULE_DEPEND(rum, usb, 1, 1, 1); 2330MODULE_VERSION(rum, 1); 2331