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 81static int rum_debug = 0; 82 83static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 84SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 85 "Debug level"); 86#endif 87 88#define N(a) ((int)(sizeof (a) / sizeof ((a)[0]))) 89 90static const STRUCT_USB_HOST_ID rum_devs[] = { 91#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 92 RUM_DEV(ABOCOM, HWU54DM), 93 RUM_DEV(ABOCOM, RT2573_2), 94 RUM_DEV(ABOCOM, RT2573_3), 95 RUM_DEV(ABOCOM, RT2573_4), 96 RUM_DEV(ABOCOM, WUG2700), 97 RUM_DEV(AMIT, CGWLUSB2GO), 98 RUM_DEV(ASUS, RT2573_1), 99 RUM_DEV(ASUS, RT2573_2), 100 RUM_DEV(BELKIN, F5D7050A), 101 RUM_DEV(BELKIN, F5D9050V3), 102 RUM_DEV(CISCOLINKSYS, WUSB54GC), 103 RUM_DEV(CISCOLINKSYS, WUSB54GR), 104 RUM_DEV(CONCEPTRONIC2, C54RU2), 105 RUM_DEV(COREGA, CGWLUSB2GL), 106 RUM_DEV(COREGA, CGWLUSB2GPX), 107 RUM_DEV(DICKSMITH, CWD854F), 108 RUM_DEV(DICKSMITH, RT2573), 109 RUM_DEV(EDIMAX, EW7318USG), 110 RUM_DEV(DLINK2, DWLG122C1), 111 RUM_DEV(DLINK2, WUA1340), 112 RUM_DEV(DLINK2, DWA111), 113 RUM_DEV(DLINK2, DWA110), 114 RUM_DEV(GIGABYTE, GNWB01GS), 115 RUM_DEV(GIGABYTE, GNWI05GS), 116 RUM_DEV(GIGASET, RT2573), 117 RUM_DEV(GOODWAY, RT2573), 118 RUM_DEV(GUILLEMOT, HWGUSB254LB), 119 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 120 RUM_DEV(HUAWEI3COM, WUB320G), 121 RUM_DEV(MELCO, G54HP), 122 RUM_DEV(MELCO, SG54HP), 123 RUM_DEV(MELCO, SG54HG), 124 RUM_DEV(MELCO, WLIUCG), 125 RUM_DEV(MELCO, WLRUCG), 126 RUM_DEV(MELCO, WLRUCGAOSS), 127 RUM_DEV(MSI, RT2573_1), 128 RUM_DEV(MSI, RT2573_2), 129 RUM_DEV(MSI, RT2573_3), 130 RUM_DEV(MSI, RT2573_4), 131 RUM_DEV(NOVATECH, RT2573), 132 RUM_DEV(PLANEX2, GWUS54HP), 133 RUM_DEV(PLANEX2, GWUS54MINI2), 134 RUM_DEV(PLANEX2, GWUSMM), 135 RUM_DEV(QCOM, RT2573), 136 RUM_DEV(QCOM, RT2573_2), 137 RUM_DEV(QCOM, RT2573_3), 138 RUM_DEV(RALINK, RT2573), 139 RUM_DEV(RALINK, RT2573_2), 140 RUM_DEV(RALINK, RT2671), 141 RUM_DEV(SITECOMEU, WL113R2), 142 RUM_DEV(SITECOMEU, WL172), 143 RUM_DEV(SPARKLAN, RT2573), 144 RUM_DEV(SURECOM, RT2573), 145#undef RUM_DEV 146}; 147 148static device_probe_t rum_match; 149static device_attach_t rum_attach; 150static device_detach_t rum_detach; 151 152static usb_callback_t rum_bulk_read_callback; 153static usb_callback_t rum_bulk_write_callback; 154 155static usb_error_t rum_do_request(struct rum_softc *sc, 156 struct usb_device_request *req, void *data); 157static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 158 const char [IFNAMSIZ], int, enum ieee80211_opmode, 159 int, const uint8_t [IEEE80211_ADDR_LEN], 160 const uint8_t [IEEE80211_ADDR_LEN]); 161static void rum_vap_delete(struct ieee80211vap *); 162static void rum_tx_free(struct rum_tx_data *, int); 163static void rum_setup_tx_list(struct rum_softc *); 164static void rum_unsetup_tx_list(struct rum_softc *); 165static int rum_newstate(struct ieee80211vap *, 166 enum ieee80211_state, int); 167static void rum_setup_tx_desc(struct rum_softc *, 168 struct rum_tx_desc *, uint32_t, uint16_t, int, 169 int); 170static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 171 struct ieee80211_node *); 172static int rum_tx_raw(struct rum_softc *, struct mbuf *, 173 struct ieee80211_node *, 174 const struct ieee80211_bpf_params *); 175static int rum_tx_data(struct rum_softc *, struct mbuf *, 176 struct ieee80211_node *); 177static void rum_start(struct ifnet *); 178static int rum_ioctl(struct ifnet *, u_long, caddr_t); 179static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 180 int); 181static uint32_t rum_read(struct rum_softc *, uint16_t); 182static void rum_read_multi(struct rum_softc *, uint16_t, void *, 183 int); 184static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 185static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 186 size_t); 187static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 188static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 189static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 190static void rum_select_antenna(struct rum_softc *); 191static void rum_enable_mrr(struct rum_softc *); 192static void rum_set_txpreamble(struct rum_softc *); 193static void rum_set_basicrates(struct rum_softc *); 194static void rum_select_band(struct rum_softc *, 195 struct ieee80211_channel *); 196static void rum_set_chan(struct rum_softc *, 197 struct ieee80211_channel *); 198static void rum_enable_tsf_sync(struct rum_softc *); 199static void rum_enable_tsf(struct rum_softc *); 200static void rum_update_slot(struct ifnet *); 201static void rum_set_bssid(struct rum_softc *, const uint8_t *); 202static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 203static void rum_update_mcast(struct ifnet *); 204static void rum_update_promisc(struct ifnet *); 205static void rum_setpromisc(struct rum_softc *); 206static const char *rum_get_rf(int); 207static void rum_read_eeprom(struct rum_softc *); 208static int rum_bbp_init(struct rum_softc *); 209static void rum_init_locked(struct rum_softc *); 210static void rum_init(void *); 211static void rum_stop(struct rum_softc *); 212static void rum_load_microcode(struct rum_softc *, const uint8_t *, 213 size_t); 214static void rum_prepare_beacon(struct rum_softc *, 215 struct ieee80211vap *); 216static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 217 const struct ieee80211_bpf_params *); 218static void rum_scan_start(struct ieee80211com *); 219static void rum_scan_end(struct ieee80211com *); 220static void rum_set_channel(struct ieee80211com *); 221static int rum_get_rssi(struct rum_softc *, uint8_t); 222static void rum_ratectl_start(struct rum_softc *, 223 struct ieee80211_node *); 224static void rum_ratectl_timeout(void *); 225static void rum_ratectl_task(void *, int); 226static int rum_pause(struct rum_softc *, int); 227 228static const struct { 229 uint32_t reg; 230 uint32_t val; 231} rum_def_mac[] = { 232 { RT2573_TXRX_CSR0, 0x025fb032 }, 233 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 234 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 235 { RT2573_TXRX_CSR3, 0x00858687 }, 236 { RT2573_TXRX_CSR7, 0x2e31353b }, 237 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 238 { RT2573_TXRX_CSR15, 0x0000000f }, 239 { RT2573_MAC_CSR6, 0x00000fff }, 240 { RT2573_MAC_CSR8, 0x016c030a }, 241 { RT2573_MAC_CSR10, 0x00000718 }, 242 { RT2573_MAC_CSR12, 0x00000004 }, 243 { RT2573_MAC_CSR13, 0x00007f00 }, 244 { RT2573_SEC_CSR0, 0x00000000 }, 245 { RT2573_SEC_CSR1, 0x00000000 }, 246 { RT2573_SEC_CSR5, 0x00000000 }, 247 { RT2573_PHY_CSR1, 0x000023b0 }, 248 { RT2573_PHY_CSR5, 0x00040a06 }, 249 { RT2573_PHY_CSR6, 0x00080606 }, 250 { RT2573_PHY_CSR7, 0x00000408 }, 251 { RT2573_AIFSN_CSR, 0x00002273 }, 252 { RT2573_CWMIN_CSR, 0x00002344 }, 253 { RT2573_CWMAX_CSR, 0x000034aa } 254}; 255 256static const struct { 257 uint8_t reg; 258 uint8_t val; 259} rum_def_bbp[] = { 260 { 3, 0x80 }, 261 { 15, 0x30 }, 262 { 17, 0x20 }, 263 { 21, 0xc8 }, 264 { 22, 0x38 }, 265 { 23, 0x06 }, 266 { 24, 0xfe }, 267 { 25, 0x0a }, 268 { 26, 0x0d }, 269 { 32, 0x0b }, 270 { 34, 0x12 }, 271 { 37, 0x07 }, 272 { 39, 0xf8 }, 273 { 41, 0x60 }, 274 { 53, 0x10 }, 275 { 54, 0x18 }, 276 { 60, 0x10 }, 277 { 61, 0x04 }, 278 { 62, 0x04 }, 279 { 75, 0xfe }, 280 { 86, 0xfe }, 281 { 88, 0xfe }, 282 { 90, 0x0f }, 283 { 99, 0x00 }, 284 { 102, 0x16 }, 285 { 107, 0x04 } 286}; 287 288static const struct rfprog { 289 uint8_t chan; 290 uint32_t r1, r2, r3, r4; 291} rum_rf5226[] = { 292 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 293 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 294 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 295 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 296 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 297 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 298 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 299 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 300 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 301 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 302 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 303 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 304 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 305 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 306 307 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 308 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 309 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 310 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 311 312 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 313 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 314 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 315 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 316 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 317 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 318 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 319 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 320 321 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 322 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 323 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 324 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 325 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 326 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 327 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 328 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 329 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 330 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 331 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 332 333 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 334 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 335 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 336 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 337 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 338}, rum_rf5225[] = { 339 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 340 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 341 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 342 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 343 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 344 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 345 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 346 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 347 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 348 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 349 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 350 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 351 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 352 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 353 354 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 355 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 356 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 357 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 358 359 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 360 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 361 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 362 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 363 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 364 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 365 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 366 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 367 368 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 369 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 370 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 371 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 372 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 373 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 374 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 375 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 376 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 377 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 378 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 379 380 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 381 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 382 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 383 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 384 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 385}; 386 387static const struct usb_config rum_config[RUM_N_TRANSFER] = { 388 [RUM_BULK_WR] = { 389 .type = UE_BULK, 390 .endpoint = UE_ADDR_ANY, 391 .direction = UE_DIR_OUT, 392 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 393 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 394 .callback = rum_bulk_write_callback, 395 .timeout = 5000, /* ms */ 396 }, 397 [RUM_BULK_RD] = { 398 .type = UE_BULK, 399 .endpoint = UE_ADDR_ANY, 400 .direction = UE_DIR_IN, 401 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 402 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 403 .callback = rum_bulk_read_callback, 404 }, 405}; 406 407static int 408rum_match(device_t self) 409{ 410 struct usb_attach_arg *uaa = device_get_ivars(self); 411 412 if (uaa->usb_mode != USB_MODE_HOST) 413 return (ENXIO); 414 if (uaa->info.bConfigIndex != 0) 415 return (ENXIO); 416 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 417 return (ENXIO); 418 419 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 420} 421 422static int 423rum_attach(device_t self) 424{ 425 struct usb_attach_arg *uaa = device_get_ivars(self); 426 struct rum_softc *sc = device_get_softc(self); 427 struct ieee80211com *ic; 428 struct ifnet *ifp; 429 uint8_t iface_index, bands; 430 uint32_t tmp; 431 int error, ntries; 432 433 device_set_usb_desc(self); 434 sc->sc_udev = uaa->device; 435 sc->sc_dev = self; 436 437 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 438 MTX_NETWORK_LOCK, MTX_DEF); 439 440 iface_index = RT2573_IFACE_INDEX; 441 error = usbd_transfer_setup(uaa->device, &iface_index, 442 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 443 if (error) { 444 device_printf(self, "could not allocate USB transfers, " 445 "err=%s\n", usbd_errstr(error)); 446 goto detach; 447 } 448 449 RUM_LOCK(sc); 450 /* retrieve RT2573 rev. no */ 451 for (ntries = 0; ntries < 100; ntries++) { 452 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 453 break; 454 if (rum_pause(sc, hz / 100)) 455 break; 456 } 457 if (ntries == 100) { 458 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 459 RUM_UNLOCK(sc); 460 goto detach; 461 } 462 463 /* retrieve MAC address and various other things from EEPROM */ 464 rum_read_eeprom(sc); 465 466 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 467 tmp, rum_get_rf(sc->rf_rev)); 468 469 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 470 RUM_UNLOCK(sc); 471 472 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 473 if (ifp == NULL) { 474 device_printf(sc->sc_dev, "can not if_alloc()\n"); 475 goto detach; 476 } 477 ic = ifp->if_l2com; 478 479 ifp->if_softc = sc; 480 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 481 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 482 ifp->if_init = rum_init; 483 ifp->if_ioctl = rum_ioctl; 484 ifp->if_start = rum_start; 485 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 486 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 487 IFQ_SET_READY(&ifp->if_snd); 488 489 ic->ic_ifp = ifp; 490 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 491 492 /* set device capabilities */ 493 ic->ic_caps = 494 IEEE80211_C_STA /* station mode supported */ 495 | IEEE80211_C_IBSS /* IBSS mode supported */ 496 | IEEE80211_C_MONITOR /* monitor mode supported */ 497 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 498 | IEEE80211_C_TXPMGT /* tx power management */ 499 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 500 | IEEE80211_C_SHSLOT /* short slot time supported */ 501 | IEEE80211_C_BGSCAN /* bg scanning supported */ 502 | IEEE80211_C_WPA /* 802.11i */ 503 ; 504 505 bands = 0; 506 setbit(&bands, IEEE80211_MODE_11B); 507 setbit(&bands, IEEE80211_MODE_11G); 508 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 509 setbit(&bands, IEEE80211_MODE_11A); 510 ieee80211_init_channels(ic, NULL, &bands); 511 512 ieee80211_ifattach(ic, sc->sc_bssid); 513 ic->ic_update_promisc = rum_update_promisc; 514 ic->ic_raw_xmit = rum_raw_xmit; 515 ic->ic_scan_start = rum_scan_start; 516 ic->ic_scan_end = rum_scan_end; 517 ic->ic_set_channel = rum_set_channel; 518 519 ic->ic_vap_create = rum_vap_create; 520 ic->ic_vap_delete = rum_vap_delete; 521 ic->ic_update_mcast = rum_update_mcast; 522 523 ieee80211_radiotap_attach(ic, 524 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 525 RT2573_TX_RADIOTAP_PRESENT, 526 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 527 RT2573_RX_RADIOTAP_PRESENT); 528 529 if (bootverbose) 530 ieee80211_announce(ic); 531 532 return (0); 533 534detach: 535 rum_detach(self); 536 return (ENXIO); /* failure */ 537} 538 539static int 540rum_detach(device_t self) 541{ 542 struct rum_softc *sc = device_get_softc(self); 543 struct ifnet *ifp = sc->sc_ifp; 544 struct ieee80211com *ic; 545 546 /* Prevent further ioctls */ 547 RUM_LOCK(sc); 548 sc->sc_detached = 1; 549 RUM_UNLOCK(sc); 550 551 /* stop all USB transfers */ 552 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 553 554 /* free TX list, if any */ 555 RUM_LOCK(sc); 556 rum_unsetup_tx_list(sc); 557 RUM_UNLOCK(sc); 558 559 if (ifp) { 560 ic = ifp->if_l2com; 561 ieee80211_ifdetach(ic); 562 if_free(ifp); 563 } 564 mtx_destroy(&sc->sc_mtx); 565 return (0); 566} 567 568static usb_error_t 569rum_do_request(struct rum_softc *sc, 570 struct usb_device_request *req, void *data) 571{ 572 usb_error_t err; 573 int ntries = 10; 574 575 while (ntries--) { 576 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 577 req, data, 0, NULL, 250 /* ms */); 578 if (err == 0) 579 break; 580 581 DPRINTFN(1, "Control request failed, %s (retrying)\n", 582 usbd_errstr(err)); 583 if (rum_pause(sc, hz / 100)) 584 break; 585 } 586 return (err); 587} 588 589static struct ieee80211vap * 590rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 591 enum ieee80211_opmode opmode, int flags, 592 const uint8_t bssid[IEEE80211_ADDR_LEN], 593 const uint8_t mac[IEEE80211_ADDR_LEN]) 594{ 595 struct rum_softc *sc = ic->ic_ifp->if_softc; 596 struct rum_vap *rvp; 597 struct ieee80211vap *vap; 598 599 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 600 return NULL; 601 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 602 M_80211_VAP, M_NOWAIT | M_ZERO); 603 if (rvp == NULL) 604 return NULL; 605 vap = &rvp->vap; 606 /* enable s/w bmiss handling for sta mode */ 607 608 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 609 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac) != 0) { 610 /* out of memory */ 611 free(rvp, M_80211_VAP); 612 return (NULL); 613 } 614 615 /* override state transition machine */ 616 rvp->newstate = vap->iv_newstate; 617 vap->iv_newstate = rum_newstate; 618 619 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 620 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 621 ieee80211_ratectl_init(vap); 622 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 623 /* complete setup */ 624 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 625 ic->ic_opmode = opmode; 626 return vap; 627} 628 629static void 630rum_vap_delete(struct ieee80211vap *vap) 631{ 632 struct rum_vap *rvp = RUM_VAP(vap); 633 struct ieee80211com *ic = vap->iv_ic; 634 635 usb_callout_drain(&rvp->ratectl_ch); 636 ieee80211_draintask(ic, &rvp->ratectl_task); 637 ieee80211_ratectl_deinit(vap); 638 ieee80211_vap_detach(vap); 639 free(rvp, M_80211_VAP); 640} 641 642static void 643rum_tx_free(struct rum_tx_data *data, int txerr) 644{ 645 struct rum_softc *sc = data->sc; 646 647 if (data->m != NULL) { 648 if (data->m->m_flags & M_TXCB) 649 ieee80211_process_callback(data->ni, data->m, 650 txerr ? ETIMEDOUT : 0); 651 m_freem(data->m); 652 data->m = NULL; 653 654 ieee80211_free_node(data->ni); 655 data->ni = NULL; 656 } 657 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 658 sc->tx_nfree++; 659} 660 661static void 662rum_setup_tx_list(struct rum_softc *sc) 663{ 664 struct rum_tx_data *data; 665 int i; 666 667 sc->tx_nfree = 0; 668 STAILQ_INIT(&sc->tx_q); 669 STAILQ_INIT(&sc->tx_free); 670 671 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 672 data = &sc->tx_data[i]; 673 674 data->sc = sc; 675 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 676 sc->tx_nfree++; 677 } 678} 679 680static void 681rum_unsetup_tx_list(struct rum_softc *sc) 682{ 683 struct rum_tx_data *data; 684 int i; 685 686 /* make sure any subsequent use of the queues will fail */ 687 sc->tx_nfree = 0; 688 STAILQ_INIT(&sc->tx_q); 689 STAILQ_INIT(&sc->tx_free); 690 691 /* free up all node references and mbufs */ 692 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 693 data = &sc->tx_data[i]; 694 695 if (data->m != NULL) { 696 m_freem(data->m); 697 data->m = NULL; 698 } 699 if (data->ni != NULL) { 700 ieee80211_free_node(data->ni); 701 data->ni = NULL; 702 } 703 } 704} 705 706static int 707rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 708{ 709 struct rum_vap *rvp = RUM_VAP(vap); 710 struct ieee80211com *ic = vap->iv_ic; 711 struct rum_softc *sc = ic->ic_ifp->if_softc; 712 const struct ieee80211_txparam *tp; 713 enum ieee80211_state ostate; 714 struct ieee80211_node *ni; 715 uint32_t tmp; 716 717 ostate = vap->iv_state; 718 DPRINTF("%s -> %s\n", 719 ieee80211_state_name[ostate], 720 ieee80211_state_name[nstate]); 721 722 IEEE80211_UNLOCK(ic); 723 RUM_LOCK(sc); 724 usb_callout_stop(&rvp->ratectl_ch); 725 726 switch (nstate) { 727 case IEEE80211_S_INIT: 728 if (ostate == IEEE80211_S_RUN) { 729 /* abort TSF synchronization */ 730 tmp = rum_read(sc, RT2573_TXRX_CSR9); 731 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 732 } 733 break; 734 735 case IEEE80211_S_RUN: 736 ni = ieee80211_ref_node(vap->iv_bss); 737 738 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 739 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 740 RUM_UNLOCK(sc); 741 IEEE80211_LOCK(ic); 742 ieee80211_free_node(ni); 743 return (-1); 744 } 745 rum_update_slot(ic->ic_ifp); 746 rum_enable_mrr(sc); 747 rum_set_txpreamble(sc); 748 rum_set_basicrates(sc); 749 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 750 rum_set_bssid(sc, sc->sc_bssid); 751 } 752 753 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 754 vap->iv_opmode == IEEE80211_M_IBSS) 755 rum_prepare_beacon(sc, vap); 756 757 if (vap->iv_opmode != IEEE80211_M_MONITOR) 758 rum_enable_tsf_sync(sc); 759 else 760 rum_enable_tsf(sc); 761 762 /* enable automatic rate adaptation */ 763 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 764 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 765 rum_ratectl_start(sc, ni); 766 ieee80211_free_node(ni); 767 break; 768 default: 769 break; 770 } 771 RUM_UNLOCK(sc); 772 IEEE80211_LOCK(ic); 773 return (rvp->newstate(vap, nstate, arg)); 774} 775 776static void 777rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 778{ 779 struct rum_softc *sc = usbd_xfer_softc(xfer); 780 struct ifnet *ifp = sc->sc_ifp; 781 struct ieee80211vap *vap; 782 struct rum_tx_data *data; 783 struct mbuf *m; 784 struct usb_page_cache *pc; 785 unsigned int len; 786 int actlen, sumlen; 787 788 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 789 790 switch (USB_GET_STATE(xfer)) { 791 case USB_ST_TRANSFERRED: 792 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 793 794 /* free resources */ 795 data = usbd_xfer_get_priv(xfer); 796 rum_tx_free(data, 0); 797 usbd_xfer_set_priv(xfer, NULL); 798 799 ifp->if_opackets++; 800 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 801 802 /* FALLTHROUGH */ 803 case USB_ST_SETUP: 804tr_setup: 805 data = STAILQ_FIRST(&sc->tx_q); 806 if (data) { 807 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 808 m = data->m; 809 810 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 811 DPRINTFN(0, "data overflow, %u bytes\n", 812 m->m_pkthdr.len); 813 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 814 } 815 pc = usbd_xfer_get_frame(xfer, 0); 816 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 817 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 818 m->m_pkthdr.len); 819 820 vap = data->ni->ni_vap; 821 if (ieee80211_radiotap_active_vap(vap)) { 822 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 823 824 tap->wt_flags = 0; 825 tap->wt_rate = data->rate; 826 tap->wt_antenna = sc->tx_ant; 827 828 ieee80211_radiotap_tx(vap, m); 829 } 830 831 /* align end on a 4-bytes boundary */ 832 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 833 if ((len % 64) == 0) 834 len += 4; 835 836 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 837 m->m_pkthdr.len, len); 838 839 usbd_xfer_set_frame_len(xfer, 0, len); 840 usbd_xfer_set_priv(xfer, data); 841 842 usbd_transfer_submit(xfer); 843 } 844 RUM_UNLOCK(sc); 845 rum_start(ifp); 846 RUM_LOCK(sc); 847 break; 848 849 default: /* Error */ 850 DPRINTFN(11, "transfer error, %s\n", 851 usbd_errstr(error)); 852 853 ifp->if_oerrors++; 854 data = usbd_xfer_get_priv(xfer); 855 if (data != NULL) { 856 rum_tx_free(data, error); 857 usbd_xfer_set_priv(xfer, NULL); 858 } 859 860 if (error != USB_ERR_CANCELLED) { 861 if (error == USB_ERR_TIMEOUT) 862 device_printf(sc->sc_dev, "device timeout\n"); 863 864 /* 865 * Try to clear stall first, also if other 866 * errors occur, hence clearing stall 867 * introduces a 50 ms delay: 868 */ 869 usbd_xfer_set_stall(xfer); 870 goto tr_setup; 871 } 872 break; 873 } 874} 875 876static void 877rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 878{ 879 struct rum_softc *sc = usbd_xfer_softc(xfer); 880 struct ifnet *ifp = sc->sc_ifp; 881 struct ieee80211com *ic = ifp->if_l2com; 882 struct ieee80211_node *ni; 883 struct mbuf *m = NULL; 884 struct usb_page_cache *pc; 885 uint32_t flags; 886 uint8_t rssi = 0; 887 int len; 888 889 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 890 891 switch (USB_GET_STATE(xfer)) { 892 case USB_ST_TRANSFERRED: 893 894 DPRINTFN(15, "rx done, actlen=%d\n", len); 895 896 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 897 DPRINTF("%s: xfer too short %d\n", 898 device_get_nameunit(sc->sc_dev), len); 899 ifp->if_ierrors++; 900 goto tr_setup; 901 } 902 903 len -= RT2573_RX_DESC_SIZE; 904 pc = usbd_xfer_get_frame(xfer, 0); 905 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 906 907 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 908 flags = le32toh(sc->sc_rx_desc.flags); 909 if (flags & RT2573_RX_CRC_ERROR) { 910 /* 911 * This should not happen since we did not 912 * request to receive those frames when we 913 * filled RUM_TXRX_CSR2: 914 */ 915 DPRINTFN(5, "PHY or CRC error\n"); 916 ifp->if_ierrors++; 917 goto tr_setup; 918 } 919 920 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 921 if (m == NULL) { 922 DPRINTF("could not allocate mbuf\n"); 923 ifp->if_ierrors++; 924 goto tr_setup; 925 } 926 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 927 mtod(m, uint8_t *), len); 928 929 /* finalize mbuf */ 930 m->m_pkthdr.rcvif = ifp; 931 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 932 933 if (ieee80211_radiotap_active(ic)) { 934 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 935 936 /* XXX read tsf */ 937 tap->wr_flags = 0; 938 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 939 (flags & RT2573_RX_OFDM) ? 940 IEEE80211_T_OFDM : IEEE80211_T_CCK); 941 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 942 tap->wr_antnoise = RT2573_NOISE_FLOOR; 943 tap->wr_antenna = sc->rx_ant; 944 } 945 /* FALLTHROUGH */ 946 case USB_ST_SETUP: 947tr_setup: 948 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 949 usbd_transfer_submit(xfer); 950 951 /* 952 * At the end of a USB callback it is always safe to unlock 953 * the private mutex of a device! That is why we do the 954 * "ieee80211_input" here, and not some lines up! 955 */ 956 RUM_UNLOCK(sc); 957 if (m) { 958 ni = ieee80211_find_rxnode(ic, 959 mtod(m, struct ieee80211_frame_min *)); 960 if (ni != NULL) { 961 (void) ieee80211_input(ni, m, rssi, 962 RT2573_NOISE_FLOOR); 963 ieee80211_free_node(ni); 964 } else 965 (void) ieee80211_input_all(ic, m, rssi, 966 RT2573_NOISE_FLOOR); 967 } 968 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 969 !IFQ_IS_EMPTY(&ifp->if_snd)) 970 rum_start(ifp); 971 RUM_LOCK(sc); 972 return; 973 974 default: /* Error */ 975 if (error != USB_ERR_CANCELLED) { 976 /* try to clear stall first */ 977 usbd_xfer_set_stall(xfer); 978 goto tr_setup; 979 } 980 return; 981 } 982} 983 984static uint8_t 985rum_plcp_signal(int rate) 986{ 987 switch (rate) { 988 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 989 case 12: return 0xb; 990 case 18: return 0xf; 991 case 24: return 0xa; 992 case 36: return 0xe; 993 case 48: return 0x9; 994 case 72: return 0xd; 995 case 96: return 0x8; 996 case 108: return 0xc; 997 998 /* CCK rates (NB: not IEEE std, device-specific) */ 999 case 2: return 0x0; 1000 case 4: return 0x1; 1001 case 11: return 0x2; 1002 case 22: return 0x3; 1003 } 1004 return 0xff; /* XXX unsupported/unknown rate */ 1005} 1006 1007static void 1008rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1009 uint32_t flags, uint16_t xflags, int len, int rate) 1010{ 1011 struct ifnet *ifp = sc->sc_ifp; 1012 struct ieee80211com *ic = ifp->if_l2com; 1013 uint16_t plcp_length; 1014 int remainder; 1015 1016 desc->flags = htole32(flags); 1017 desc->flags |= htole32(RT2573_TX_VALID); 1018 desc->flags |= htole32(len << 16); 1019 1020 desc->xflags = htole16(xflags); 1021 1022 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1023 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1024 1025 /* setup PLCP fields */ 1026 desc->plcp_signal = rum_plcp_signal(rate); 1027 desc->plcp_service = 4; 1028 1029 len += IEEE80211_CRC_LEN; 1030 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1031 desc->flags |= htole32(RT2573_TX_OFDM); 1032 1033 plcp_length = len & 0xfff; 1034 desc->plcp_length_hi = plcp_length >> 6; 1035 desc->plcp_length_lo = plcp_length & 0x3f; 1036 } else { 1037 if (rate == 0) 1038 rate = 2; /* avoid division by zero */ 1039 plcp_length = (16 * len + rate - 1) / rate; 1040 if (rate == 22) { 1041 remainder = (16 * len) % 22; 1042 if (remainder != 0 && remainder < 7) 1043 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1044 } 1045 desc->plcp_length_hi = plcp_length >> 8; 1046 desc->plcp_length_lo = plcp_length & 0xff; 1047 1048 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1049 desc->plcp_signal |= 0x08; 1050 } 1051} 1052 1053static int 1054rum_sendprot(struct rum_softc *sc, 1055 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1056{ 1057 struct ieee80211com *ic = ni->ni_ic; 1058 const struct ieee80211_frame *wh; 1059 struct rum_tx_data *data; 1060 struct mbuf *mprot; 1061 int protrate, ackrate, pktlen, flags, isshort; 1062 uint16_t dur; 1063 1064 RUM_LOCK_ASSERT(sc, MA_OWNED); 1065 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1066 ("protection %d", prot)); 1067 1068 wh = mtod(m, const struct ieee80211_frame *); 1069 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1070 1071 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1072 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1073 1074 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1075 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1076 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1077 flags = RT2573_TX_MORE_FRAG; 1078 if (prot == IEEE80211_PROT_RTSCTS) { 1079 /* NB: CTS is the same size as an ACK */ 1080 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1081 flags |= RT2573_TX_NEED_ACK; 1082 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1083 } else { 1084 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1085 } 1086 if (mprot == NULL) { 1087 /* XXX stat + msg */ 1088 return (ENOBUFS); 1089 } 1090 data = STAILQ_FIRST(&sc->tx_free); 1091 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1092 sc->tx_nfree--; 1093 1094 data->m = mprot; 1095 data->ni = ieee80211_ref_node(ni); 1096 data->rate = protrate; 1097 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1098 1099 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1100 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1101 1102 return 0; 1103} 1104 1105static int 1106rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1107{ 1108 struct ieee80211vap *vap = ni->ni_vap; 1109 struct ifnet *ifp = sc->sc_ifp; 1110 struct ieee80211com *ic = ifp->if_l2com; 1111 struct rum_tx_data *data; 1112 struct ieee80211_frame *wh; 1113 const struct ieee80211_txparam *tp; 1114 struct ieee80211_key *k; 1115 uint32_t flags = 0; 1116 uint16_t dur; 1117 1118 RUM_LOCK_ASSERT(sc, MA_OWNED); 1119 1120 data = STAILQ_FIRST(&sc->tx_free); 1121 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1122 sc->tx_nfree--; 1123 1124 wh = mtod(m0, struct ieee80211_frame *); 1125 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1126 k = ieee80211_crypto_encap(ni, m0); 1127 if (k == NULL) { 1128 m_freem(m0); 1129 return ENOBUFS; 1130 } 1131 wh = mtod(m0, struct ieee80211_frame *); 1132 } 1133 1134 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1135 1136 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1137 flags |= RT2573_TX_NEED_ACK; 1138 1139 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1140 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1141 USETW(wh->i_dur, dur); 1142 1143 /* tell hardware to add timestamp for probe responses */ 1144 if ((wh->i_fc[0] & 1145 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1146 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1147 flags |= RT2573_TX_TIMESTAMP; 1148 } 1149 1150 data->m = m0; 1151 data->ni = ni; 1152 data->rate = tp->mgmtrate; 1153 1154 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1155 1156 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1157 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1158 1159 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1160 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1161 1162 return (0); 1163} 1164 1165static int 1166rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1167 const struct ieee80211_bpf_params *params) 1168{ 1169 struct ieee80211com *ic = ni->ni_ic; 1170 struct rum_tx_data *data; 1171 uint32_t flags; 1172 int rate, error; 1173 1174 RUM_LOCK_ASSERT(sc, MA_OWNED); 1175 KASSERT(params != NULL, ("no raw xmit params")); 1176 1177 rate = params->ibp_rate0; 1178 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1179 m_freem(m0); 1180 return EINVAL; 1181 } 1182 flags = 0; 1183 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1184 flags |= RT2573_TX_NEED_ACK; 1185 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1186 error = rum_sendprot(sc, m0, ni, 1187 params->ibp_flags & IEEE80211_BPF_RTS ? 1188 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1189 rate); 1190 if (error || sc->tx_nfree == 0) { 1191 m_freem(m0); 1192 return ENOBUFS; 1193 } 1194 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1195 } 1196 1197 data = STAILQ_FIRST(&sc->tx_free); 1198 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1199 sc->tx_nfree--; 1200 1201 data->m = m0; 1202 data->ni = ni; 1203 data->rate = rate; 1204 1205 /* XXX need to setup descriptor ourself */ 1206 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1207 1208 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1209 m0->m_pkthdr.len, rate); 1210 1211 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1212 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1213 1214 return 0; 1215} 1216 1217static int 1218rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1219{ 1220 struct ieee80211vap *vap = ni->ni_vap; 1221 struct ifnet *ifp = sc->sc_ifp; 1222 struct ieee80211com *ic = ifp->if_l2com; 1223 struct rum_tx_data *data; 1224 struct ieee80211_frame *wh; 1225 const struct ieee80211_txparam *tp; 1226 struct ieee80211_key *k; 1227 uint32_t flags = 0; 1228 uint16_t dur; 1229 int error, rate; 1230 1231 RUM_LOCK_ASSERT(sc, MA_OWNED); 1232 1233 wh = mtod(m0, struct ieee80211_frame *); 1234 1235 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1236 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1237 rate = tp->mcastrate; 1238 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1239 rate = tp->ucastrate; 1240 else 1241 rate = ni->ni_txrate; 1242 1243 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1244 k = ieee80211_crypto_encap(ni, m0); 1245 if (k == NULL) { 1246 m_freem(m0); 1247 return ENOBUFS; 1248 } 1249 1250 /* packet header may have moved, reset our local pointer */ 1251 wh = mtod(m0, struct ieee80211_frame *); 1252 } 1253 1254 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1255 int prot = IEEE80211_PROT_NONE; 1256 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1257 prot = IEEE80211_PROT_RTSCTS; 1258 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1259 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1260 prot = ic->ic_protmode; 1261 if (prot != IEEE80211_PROT_NONE) { 1262 error = rum_sendprot(sc, m0, ni, prot, rate); 1263 if (error || sc->tx_nfree == 0) { 1264 m_freem(m0); 1265 return ENOBUFS; 1266 } 1267 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1268 } 1269 } 1270 1271 data = STAILQ_FIRST(&sc->tx_free); 1272 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1273 sc->tx_nfree--; 1274 1275 data->m = m0; 1276 data->ni = ni; 1277 data->rate = rate; 1278 1279 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1280 flags |= RT2573_TX_NEED_ACK; 1281 flags |= RT2573_TX_MORE_FRAG; 1282 1283 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1284 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1285 USETW(wh->i_dur, dur); 1286 } 1287 1288 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1289 1290 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1291 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1292 1293 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1294 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1295 1296 return 0; 1297} 1298 1299static void 1300rum_start(struct ifnet *ifp) 1301{ 1302 struct rum_softc *sc = ifp->if_softc; 1303 struct ieee80211_node *ni; 1304 struct mbuf *m; 1305 1306 RUM_LOCK(sc); 1307 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1308 RUM_UNLOCK(sc); 1309 return; 1310 } 1311 for (;;) { 1312 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1313 if (m == NULL) 1314 break; 1315 if (sc->tx_nfree < RUM_TX_MINFREE) { 1316 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1317 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1318 break; 1319 } 1320 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1321 if (rum_tx_data(sc, m, ni) != 0) { 1322 ieee80211_free_node(ni); 1323 ifp->if_oerrors++; 1324 break; 1325 } 1326 } 1327 RUM_UNLOCK(sc); 1328} 1329 1330static int 1331rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1332{ 1333 struct rum_softc *sc = ifp->if_softc; 1334 struct ieee80211com *ic = ifp->if_l2com; 1335 struct ifreq *ifr = (struct ifreq *) data; 1336 int error; 1337 int startall = 0; 1338 1339 RUM_LOCK(sc); 1340 error = sc->sc_detached ? ENXIO : 0; 1341 RUM_UNLOCK(sc); 1342 if (error) 1343 return (error); 1344 1345 switch (cmd) { 1346 case SIOCSIFFLAGS: 1347 RUM_LOCK(sc); 1348 if (ifp->if_flags & IFF_UP) { 1349 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1350 rum_init_locked(sc); 1351 startall = 1; 1352 } else 1353 rum_setpromisc(sc); 1354 } else { 1355 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1356 rum_stop(sc); 1357 } 1358 RUM_UNLOCK(sc); 1359 if (startall) 1360 ieee80211_start_all(ic); 1361 break; 1362 case SIOCGIFMEDIA: 1363 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1364 break; 1365 case SIOCGIFADDR: 1366 error = ether_ioctl(ifp, cmd, data); 1367 break; 1368 default: 1369 error = EINVAL; 1370 break; 1371 } 1372 return error; 1373} 1374 1375static void 1376rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1377{ 1378 struct usb_device_request req; 1379 usb_error_t error; 1380 1381 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1382 req.bRequest = RT2573_READ_EEPROM; 1383 USETW(req.wValue, 0); 1384 USETW(req.wIndex, addr); 1385 USETW(req.wLength, len); 1386 1387 error = rum_do_request(sc, &req, buf); 1388 if (error != 0) { 1389 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1390 usbd_errstr(error)); 1391 } 1392} 1393 1394static uint32_t 1395rum_read(struct rum_softc *sc, uint16_t reg) 1396{ 1397 uint32_t val; 1398 1399 rum_read_multi(sc, reg, &val, sizeof val); 1400 1401 return le32toh(val); 1402} 1403 1404static void 1405rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1406{ 1407 struct usb_device_request req; 1408 usb_error_t error; 1409 1410 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1411 req.bRequest = RT2573_READ_MULTI_MAC; 1412 USETW(req.wValue, 0); 1413 USETW(req.wIndex, reg); 1414 USETW(req.wLength, len); 1415 1416 error = rum_do_request(sc, &req, buf); 1417 if (error != 0) { 1418 device_printf(sc->sc_dev, 1419 "could not multi read MAC register: %s\n", 1420 usbd_errstr(error)); 1421 } 1422} 1423 1424static usb_error_t 1425rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1426{ 1427 uint32_t tmp = htole32(val); 1428 1429 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1430} 1431 1432static usb_error_t 1433rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1434{ 1435 struct usb_device_request req; 1436 usb_error_t error; 1437 size_t offset; 1438 1439 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1440 req.bRequest = RT2573_WRITE_MULTI_MAC; 1441 USETW(req.wValue, 0); 1442 1443 /* write at most 64 bytes at a time */ 1444 for (offset = 0; offset < len; offset += 64) { 1445 USETW(req.wIndex, reg + offset); 1446 USETW(req.wLength, MIN(len - offset, 64)); 1447 1448 error = rum_do_request(sc, &req, (char *)buf + offset); 1449 if (error != 0) { 1450 device_printf(sc->sc_dev, 1451 "could not multi write MAC register: %s\n", 1452 usbd_errstr(error)); 1453 return (error); 1454 } 1455 } 1456 1457 return (USB_ERR_NORMAL_COMPLETION); 1458} 1459 1460static void 1461rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1462{ 1463 uint32_t tmp; 1464 int ntries; 1465 1466 DPRINTFN(2, "reg=0x%08x\n", reg); 1467 1468 for (ntries = 0; ntries < 100; ntries++) { 1469 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1470 break; 1471 if (rum_pause(sc, hz / 100)) 1472 break; 1473 } 1474 if (ntries == 100) { 1475 device_printf(sc->sc_dev, "could not write to BBP\n"); 1476 return; 1477 } 1478 1479 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1480 rum_write(sc, RT2573_PHY_CSR3, tmp); 1481} 1482 1483static uint8_t 1484rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1485{ 1486 uint32_t val; 1487 int ntries; 1488 1489 DPRINTFN(2, "reg=0x%08x\n", reg); 1490 1491 for (ntries = 0; ntries < 100; ntries++) { 1492 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1493 break; 1494 if (rum_pause(sc, hz / 100)) 1495 break; 1496 } 1497 if (ntries == 100) { 1498 device_printf(sc->sc_dev, "could not read BBP\n"); 1499 return 0; 1500 } 1501 1502 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1503 rum_write(sc, RT2573_PHY_CSR3, val); 1504 1505 for (ntries = 0; ntries < 100; ntries++) { 1506 val = rum_read(sc, RT2573_PHY_CSR3); 1507 if (!(val & RT2573_BBP_BUSY)) 1508 return val & 0xff; 1509 if (rum_pause(sc, hz / 100)) 1510 break; 1511 } 1512 1513 device_printf(sc->sc_dev, "could not read BBP\n"); 1514 return 0; 1515} 1516 1517static void 1518rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1519{ 1520 uint32_t tmp; 1521 int ntries; 1522 1523 for (ntries = 0; ntries < 100; ntries++) { 1524 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1525 break; 1526 if (rum_pause(sc, hz / 100)) 1527 break; 1528 } 1529 if (ntries == 100) { 1530 device_printf(sc->sc_dev, "could not write to RF\n"); 1531 return; 1532 } 1533 1534 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1535 (reg & 3); 1536 rum_write(sc, RT2573_PHY_CSR4, tmp); 1537 1538 /* remember last written value in sc */ 1539 sc->rf_regs[reg] = val; 1540 1541 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1542} 1543 1544static void 1545rum_select_antenna(struct rum_softc *sc) 1546{ 1547 uint8_t bbp4, bbp77; 1548 uint32_t tmp; 1549 1550 bbp4 = rum_bbp_read(sc, 4); 1551 bbp77 = rum_bbp_read(sc, 77); 1552 1553 /* TBD */ 1554 1555 /* make sure Rx is disabled before switching antenna */ 1556 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1557 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1558 1559 rum_bbp_write(sc, 4, bbp4); 1560 rum_bbp_write(sc, 77, bbp77); 1561 1562 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1563} 1564 1565/* 1566 * Enable multi-rate retries for frames sent at OFDM rates. 1567 * In 802.11b/g mode, allow fallback to CCK rates. 1568 */ 1569static void 1570rum_enable_mrr(struct rum_softc *sc) 1571{ 1572 struct ifnet *ifp = sc->sc_ifp; 1573 struct ieee80211com *ic = ifp->if_l2com; 1574 uint32_t tmp; 1575 1576 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1577 1578 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1579 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1580 tmp |= RT2573_MRR_CCK_FALLBACK; 1581 tmp |= RT2573_MRR_ENABLED; 1582 1583 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1584} 1585 1586static void 1587rum_set_txpreamble(struct rum_softc *sc) 1588{ 1589 struct ifnet *ifp = sc->sc_ifp; 1590 struct ieee80211com *ic = ifp->if_l2com; 1591 uint32_t tmp; 1592 1593 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1594 1595 tmp &= ~RT2573_SHORT_PREAMBLE; 1596 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1597 tmp |= RT2573_SHORT_PREAMBLE; 1598 1599 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1600} 1601 1602static void 1603rum_set_basicrates(struct rum_softc *sc) 1604{ 1605 struct ifnet *ifp = sc->sc_ifp; 1606 struct ieee80211com *ic = ifp->if_l2com; 1607 1608 /* update basic rate set */ 1609 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1610 /* 11b basic rates: 1, 2Mbps */ 1611 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1612 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1613 /* 11a basic rates: 6, 12, 24Mbps */ 1614 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1615 } else { 1616 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1617 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1618 } 1619} 1620 1621/* 1622 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1623 * driver. 1624 */ 1625static void 1626rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1627{ 1628 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1629 uint32_t tmp; 1630 1631 /* update all BBP registers that depend on the band */ 1632 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1633 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1634 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1635 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1636 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1637 } 1638 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1639 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1640 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1641 } 1642 1643 sc->bbp17 = bbp17; 1644 rum_bbp_write(sc, 17, bbp17); 1645 rum_bbp_write(sc, 96, bbp96); 1646 rum_bbp_write(sc, 104, bbp104); 1647 1648 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1649 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1650 rum_bbp_write(sc, 75, 0x80); 1651 rum_bbp_write(sc, 86, 0x80); 1652 rum_bbp_write(sc, 88, 0x80); 1653 } 1654 1655 rum_bbp_write(sc, 35, bbp35); 1656 rum_bbp_write(sc, 97, bbp97); 1657 rum_bbp_write(sc, 98, bbp98); 1658 1659 tmp = rum_read(sc, RT2573_PHY_CSR0); 1660 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1661 if (IEEE80211_IS_CHAN_2GHZ(c)) 1662 tmp |= RT2573_PA_PE_2GHZ; 1663 else 1664 tmp |= RT2573_PA_PE_5GHZ; 1665 rum_write(sc, RT2573_PHY_CSR0, tmp); 1666} 1667 1668static void 1669rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1670{ 1671 struct ifnet *ifp = sc->sc_ifp; 1672 struct ieee80211com *ic = ifp->if_l2com; 1673 const struct rfprog *rfprog; 1674 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1675 int8_t power; 1676 int i, chan; 1677 1678 chan = ieee80211_chan2ieee(ic, c); 1679 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1680 return; 1681 1682 /* select the appropriate RF settings based on what EEPROM says */ 1683 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1684 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1685 1686 /* find the settings for this channel (we know it exists) */ 1687 for (i = 0; rfprog[i].chan != chan; i++); 1688 1689 power = sc->txpow[i]; 1690 if (power < 0) { 1691 bbp94 += power; 1692 power = 0; 1693 } else if (power > 31) { 1694 bbp94 += power - 31; 1695 power = 31; 1696 } 1697 1698 /* 1699 * If we are switching from the 2GHz band to the 5GHz band or 1700 * vice-versa, BBP registers need to be reprogrammed. 1701 */ 1702 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1703 rum_select_band(sc, c); 1704 rum_select_antenna(sc); 1705 } 1706 ic->ic_curchan = c; 1707 1708 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1709 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1710 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1711 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1712 1713 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1714 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1715 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1716 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1717 1718 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1719 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1720 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1721 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1722 1723 rum_pause(sc, hz / 100); 1724 1725 /* enable smart mode for MIMO-capable RFs */ 1726 bbp3 = rum_bbp_read(sc, 3); 1727 1728 bbp3 &= ~RT2573_SMART_MODE; 1729 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1730 bbp3 |= RT2573_SMART_MODE; 1731 1732 rum_bbp_write(sc, 3, bbp3); 1733 1734 if (bbp94 != RT2573_BBPR94_DEFAULT) 1735 rum_bbp_write(sc, 94, bbp94); 1736 1737 /* give the chip some extra time to do the switchover */ 1738 rum_pause(sc, hz / 100); 1739} 1740 1741/* 1742 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1743 * and HostAP operating modes. 1744 */ 1745static void 1746rum_enable_tsf_sync(struct rum_softc *sc) 1747{ 1748 struct ifnet *ifp = sc->sc_ifp; 1749 struct ieee80211com *ic = ifp->if_l2com; 1750 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1751 uint32_t tmp; 1752 1753 if (vap->iv_opmode != IEEE80211_M_STA) { 1754 /* 1755 * Change default 16ms TBTT adjustment to 8ms. 1756 * Must be done before enabling beacon generation. 1757 */ 1758 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1759 } 1760 1761 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1762 1763 /* set beacon interval (in 1/16ms unit) */ 1764 tmp |= vap->iv_bss->ni_intval * 16; 1765 1766 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1767 if (vap->iv_opmode == IEEE80211_M_STA) 1768 tmp |= RT2573_TSF_MODE(1); 1769 else 1770 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1771 1772 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1773} 1774 1775static void 1776rum_enable_tsf(struct rum_softc *sc) 1777{ 1778 rum_write(sc, RT2573_TXRX_CSR9, 1779 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1780 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1781} 1782 1783static void 1784rum_update_slot(struct ifnet *ifp) 1785{ 1786 struct rum_softc *sc = ifp->if_softc; 1787 struct ieee80211com *ic = ifp->if_l2com; 1788 uint8_t slottime; 1789 uint32_t tmp; 1790 1791 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1792 1793 tmp = rum_read(sc, RT2573_MAC_CSR9); 1794 tmp = (tmp & ~0xff) | slottime; 1795 rum_write(sc, RT2573_MAC_CSR9, tmp); 1796 1797 DPRINTF("setting slot time to %uus\n", slottime); 1798} 1799 1800static void 1801rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1802{ 1803 uint32_t tmp; 1804 1805 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1806 rum_write(sc, RT2573_MAC_CSR4, tmp); 1807 1808 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1809 rum_write(sc, RT2573_MAC_CSR5, tmp); 1810} 1811 1812static void 1813rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1814{ 1815 uint32_t tmp; 1816 1817 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1818 rum_write(sc, RT2573_MAC_CSR2, tmp); 1819 1820 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1821 rum_write(sc, RT2573_MAC_CSR3, tmp); 1822} 1823 1824static void 1825rum_setpromisc(struct rum_softc *sc) 1826{ 1827 struct ifnet *ifp = sc->sc_ifp; 1828 uint32_t tmp; 1829 1830 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1831 1832 tmp &= ~RT2573_DROP_NOT_TO_ME; 1833 if (!(ifp->if_flags & IFF_PROMISC)) 1834 tmp |= RT2573_DROP_NOT_TO_ME; 1835 1836 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1837 1838 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1839 "entering" : "leaving"); 1840} 1841 1842static void 1843rum_update_promisc(struct ifnet *ifp) 1844{ 1845 struct rum_softc *sc = ifp->if_softc; 1846 1847 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1848 return; 1849 1850 RUM_LOCK(sc); 1851 rum_setpromisc(sc); 1852 RUM_UNLOCK(sc); 1853} 1854 1855static void 1856rum_update_mcast(struct ifnet *ifp) 1857{ 1858 static int warning_printed; 1859 1860 if (warning_printed == 0) { 1861 if_printf(ifp, "need to implement %s\n", __func__); 1862 warning_printed = 1; 1863 } 1864} 1865 1866static const char * 1867rum_get_rf(int rev) 1868{ 1869 switch (rev) { 1870 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1871 case RT2573_RF_2528: return "RT2528"; 1872 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1873 case RT2573_RF_5226: return "RT5226"; 1874 default: return "unknown"; 1875 } 1876} 1877 1878static void 1879rum_read_eeprom(struct rum_softc *sc) 1880{ 1881 uint16_t val; 1882#ifdef RUM_DEBUG 1883 int i; 1884#endif 1885 1886 /* read MAC address */ 1887 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1888 1889 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1890 val = le16toh(val); 1891 sc->rf_rev = (val >> 11) & 0x1f; 1892 sc->hw_radio = (val >> 10) & 0x1; 1893 sc->rx_ant = (val >> 4) & 0x3; 1894 sc->tx_ant = (val >> 2) & 0x3; 1895 sc->nb_ant = val & 0x3; 1896 1897 DPRINTF("RF revision=%d\n", sc->rf_rev); 1898 1899 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1900 val = le16toh(val); 1901 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1902 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1903 1904 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1905 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1906 1907 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1908 val = le16toh(val); 1909 if ((val & 0xff) != 0xff) 1910 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1911 1912 /* Only [-10, 10] is valid */ 1913 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1914 sc->rssi_2ghz_corr = 0; 1915 1916 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1917 val = le16toh(val); 1918 if ((val & 0xff) != 0xff) 1919 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1920 1921 /* Only [-10, 10] is valid */ 1922 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1923 sc->rssi_5ghz_corr = 0; 1924 1925 if (sc->ext_2ghz_lna) 1926 sc->rssi_2ghz_corr -= 14; 1927 if (sc->ext_5ghz_lna) 1928 sc->rssi_5ghz_corr -= 14; 1929 1930 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1931 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1932 1933 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1934 val = le16toh(val); 1935 if ((val & 0xff) != 0xff) 1936 sc->rffreq = val & 0xff; 1937 1938 DPRINTF("RF freq=%d\n", sc->rffreq); 1939 1940 /* read Tx power for all a/b/g channels */ 1941 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1942 /* XXX default Tx power for 802.11a channels */ 1943 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1944#ifdef RUM_DEBUG 1945 for (i = 0; i < 14; i++) 1946 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1947#endif 1948 1949 /* read default values for BBP registers */ 1950 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1951#ifdef RUM_DEBUG 1952 for (i = 0; i < 14; i++) { 1953 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1954 continue; 1955 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1956 sc->bbp_prom[i].val); 1957 } 1958#endif 1959} 1960 1961static int 1962rum_bbp_init(struct rum_softc *sc) 1963{ 1964 int i, ntries; 1965 1966 /* wait for BBP to be ready */ 1967 for (ntries = 0; ntries < 100; ntries++) { 1968 const uint8_t val = rum_bbp_read(sc, 0); 1969 if (val != 0 && val != 0xff) 1970 break; 1971 if (rum_pause(sc, hz / 100)) 1972 break; 1973 } 1974 if (ntries == 100) { 1975 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1976 return EIO; 1977 } 1978 1979 /* initialize BBP registers to default values */ 1980 for (i = 0; i < N(rum_def_bbp); i++) 1981 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1982 1983 /* write vendor-specific BBP values (from EEPROM) */ 1984 for (i = 0; i < 16; i++) { 1985 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1986 continue; 1987 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1988 } 1989 1990 return 0; 1991} 1992 1993static void 1994rum_init_locked(struct rum_softc *sc) 1995{ 1996 struct ifnet *ifp = sc->sc_ifp; 1997 struct ieee80211com *ic = ifp->if_l2com; 1998 uint32_t tmp; 1999 usb_error_t error; 2000 int i, ntries; 2001 2002 RUM_LOCK_ASSERT(sc, MA_OWNED); 2003 2004 rum_stop(sc); 2005 2006 /* initialize MAC registers to default values */ 2007 for (i = 0; i < N(rum_def_mac); i++) 2008 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2009 2010 /* set host ready */ 2011 rum_write(sc, RT2573_MAC_CSR1, 3); 2012 rum_write(sc, RT2573_MAC_CSR1, 0); 2013 2014 /* wait for BBP/RF to wakeup */ 2015 for (ntries = 0; ntries < 100; ntries++) { 2016 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2017 break; 2018 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2019 if (rum_pause(sc, hz / 100)) 2020 break; 2021 } 2022 if (ntries == 100) { 2023 device_printf(sc->sc_dev, 2024 "timeout waiting for BBP/RF to wakeup\n"); 2025 goto fail; 2026 } 2027 2028 if ((error = rum_bbp_init(sc)) != 0) 2029 goto fail; 2030 2031 /* select default channel */ 2032 rum_select_band(sc, ic->ic_curchan); 2033 rum_select_antenna(sc); 2034 rum_set_chan(sc, ic->ic_curchan); 2035 2036 /* clear STA registers */ 2037 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2038 2039 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2040 2041 /* initialize ASIC */ 2042 rum_write(sc, RT2573_MAC_CSR1, 4); 2043 2044 /* 2045 * Allocate Tx and Rx xfer queues. 2046 */ 2047 rum_setup_tx_list(sc); 2048 2049 /* update Rx filter */ 2050 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2051 2052 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2053 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2054 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2055 RT2573_DROP_ACKCTS; 2056 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2057 tmp |= RT2573_DROP_TODS; 2058 if (!(ifp->if_flags & IFF_PROMISC)) 2059 tmp |= RT2573_DROP_NOT_TO_ME; 2060 } 2061 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2062 2063 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2064 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2065 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2066 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2067 return; 2068 2069fail: rum_stop(sc); 2070#undef N 2071} 2072 2073static void 2074rum_init(void *priv) 2075{ 2076 struct rum_softc *sc = priv; 2077 struct ifnet *ifp = sc->sc_ifp; 2078 struct ieee80211com *ic = ifp->if_l2com; 2079 2080 RUM_LOCK(sc); 2081 rum_init_locked(sc); 2082 RUM_UNLOCK(sc); 2083 2084 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2085 ieee80211_start_all(ic); /* start all vap's */ 2086} 2087 2088static void 2089rum_stop(struct rum_softc *sc) 2090{ 2091 struct ifnet *ifp = sc->sc_ifp; 2092 uint32_t tmp; 2093 2094 RUM_LOCK_ASSERT(sc, MA_OWNED); 2095 2096 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2097 2098 RUM_UNLOCK(sc); 2099 2100 /* 2101 * Drain the USB transfers, if not already drained: 2102 */ 2103 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2104 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2105 2106 RUM_LOCK(sc); 2107 2108 rum_unsetup_tx_list(sc); 2109 2110 /* disable Rx */ 2111 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2112 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2113 2114 /* reset ASIC */ 2115 rum_write(sc, RT2573_MAC_CSR1, 3); 2116 rum_write(sc, RT2573_MAC_CSR1, 0); 2117} 2118 2119static void 2120rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2121{ 2122 struct usb_device_request req; 2123 uint16_t reg = RT2573_MCU_CODE_BASE; 2124 usb_error_t err; 2125 2126 /* copy firmware image into NIC */ 2127 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2128 err = rum_write(sc, reg, UGETDW(ucode)); 2129 if (err) { 2130 /* firmware already loaded ? */ 2131 device_printf(sc->sc_dev, "Firmware load " 2132 "failure! (ignored)\n"); 2133 break; 2134 } 2135 } 2136 2137 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2138 req.bRequest = RT2573_MCU_CNTL; 2139 USETW(req.wValue, RT2573_MCU_RUN); 2140 USETW(req.wIndex, 0); 2141 USETW(req.wLength, 0); 2142 2143 err = rum_do_request(sc, &req, NULL); 2144 if (err != 0) { 2145 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2146 usbd_errstr(err)); 2147 } 2148 2149 /* give the chip some time to boot */ 2150 rum_pause(sc, hz / 8); 2151} 2152 2153static void 2154rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2155{ 2156 struct ieee80211com *ic = vap->iv_ic; 2157 const struct ieee80211_txparam *tp; 2158 struct rum_tx_desc desc; 2159 struct mbuf *m0; 2160 2161 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2162 return; 2163 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2164 return; 2165 2166 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2167 if (m0 == NULL) 2168 return; 2169 2170 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2171 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2172 m0->m_pkthdr.len, tp->mgmtrate); 2173 2174 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2175 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2176 2177 /* copy beacon header and payload into NIC memory */ 2178 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2179 m0->m_pkthdr.len); 2180 2181 m_freem(m0); 2182} 2183 2184static int 2185rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2186 const struct ieee80211_bpf_params *params) 2187{ 2188 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2189 struct rum_softc *sc = ifp->if_softc; 2190 2191 RUM_LOCK(sc); 2192 /* prevent management frames from being sent if we're not ready */ 2193 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2194 RUM_UNLOCK(sc); 2195 m_freem(m); 2196 ieee80211_free_node(ni); 2197 return ENETDOWN; 2198 } 2199 if (sc->tx_nfree < RUM_TX_MINFREE) { 2200 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2201 RUM_UNLOCK(sc); 2202 m_freem(m); 2203 ieee80211_free_node(ni); 2204 return EIO; 2205 } 2206 2207 ifp->if_opackets++; 2208 2209 if (params == NULL) { 2210 /* 2211 * Legacy path; interpret frame contents to decide 2212 * precisely how to send the frame. 2213 */ 2214 if (rum_tx_mgt(sc, m, ni) != 0) 2215 goto bad; 2216 } else { 2217 /* 2218 * Caller supplied explicit parameters to use in 2219 * sending the frame. 2220 */ 2221 if (rum_tx_raw(sc, m, ni, params) != 0) 2222 goto bad; 2223 } 2224 RUM_UNLOCK(sc); 2225 2226 return 0; 2227bad: 2228 ifp->if_oerrors++; 2229 RUM_UNLOCK(sc); 2230 ieee80211_free_node(ni); 2231 return EIO; 2232} 2233 2234static void 2235rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2236{ 2237 struct ieee80211vap *vap = ni->ni_vap; 2238 struct rum_vap *rvp = RUM_VAP(vap); 2239 2240 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2241 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2242 2243 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2244} 2245 2246static void 2247rum_ratectl_timeout(void *arg) 2248{ 2249 struct rum_vap *rvp = arg; 2250 struct ieee80211vap *vap = &rvp->vap; 2251 struct ieee80211com *ic = vap->iv_ic; 2252 2253 ieee80211_runtask(ic, &rvp->ratectl_task); 2254} 2255 2256static void 2257rum_ratectl_task(void *arg, int pending) 2258{ 2259 struct rum_vap *rvp = arg; 2260 struct ieee80211vap *vap = &rvp->vap; 2261 struct ieee80211com *ic = vap->iv_ic; 2262 struct ifnet *ifp = ic->ic_ifp; 2263 struct rum_softc *sc = ifp->if_softc; 2264 struct ieee80211_node *ni; 2265 int ok, fail; 2266 int sum, retrycnt; 2267 2268 RUM_LOCK(sc); 2269 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2270 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2271 2272 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2273 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2274 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2275 sum = ok+fail; 2276 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2277 2278 ni = ieee80211_ref_node(vap->iv_bss); 2279 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2280 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2281 ieee80211_free_node(ni); 2282 2283 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2284 2285 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2286 RUM_UNLOCK(sc); 2287} 2288 2289static void 2290rum_scan_start(struct ieee80211com *ic) 2291{ 2292 struct ifnet *ifp = ic->ic_ifp; 2293 struct rum_softc *sc = ifp->if_softc; 2294 uint32_t tmp; 2295 2296 RUM_LOCK(sc); 2297 /* abort TSF synchronization */ 2298 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2299 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2300 rum_set_bssid(sc, ifp->if_broadcastaddr); 2301 RUM_UNLOCK(sc); 2302 2303} 2304 2305static void 2306rum_scan_end(struct ieee80211com *ic) 2307{ 2308 struct rum_softc *sc = ic->ic_ifp->if_softc; 2309 2310 RUM_LOCK(sc); 2311 rum_enable_tsf_sync(sc); 2312 rum_set_bssid(sc, sc->sc_bssid); 2313 RUM_UNLOCK(sc); 2314 2315} 2316 2317static void 2318rum_set_channel(struct ieee80211com *ic) 2319{ 2320 struct rum_softc *sc = ic->ic_ifp->if_softc; 2321 2322 RUM_LOCK(sc); 2323 rum_set_chan(sc, ic->ic_curchan); 2324 RUM_UNLOCK(sc); 2325} 2326 2327static int 2328rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2329{ 2330 struct ifnet *ifp = sc->sc_ifp; 2331 struct ieee80211com *ic = ifp->if_l2com; 2332 int lna, agc, rssi; 2333 2334 lna = (raw >> 5) & 0x3; 2335 agc = raw & 0x1f; 2336 2337 if (lna == 0) { 2338 /* 2339 * No RSSI mapping 2340 * 2341 * NB: Since RSSI is relative to noise floor, -1 is 2342 * adequate for caller to know error happened. 2343 */ 2344 return -1; 2345 } 2346 2347 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2348 2349 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2350 rssi += sc->rssi_2ghz_corr; 2351 2352 if (lna == 1) 2353 rssi -= 64; 2354 else if (lna == 2) 2355 rssi -= 74; 2356 else if (lna == 3) 2357 rssi -= 90; 2358 } else { 2359 rssi += sc->rssi_5ghz_corr; 2360 2361 if (!sc->ext_5ghz_lna && lna != 1) 2362 rssi += 4; 2363 2364 if (lna == 1) 2365 rssi -= 64; 2366 else if (lna == 2) 2367 rssi -= 86; 2368 else if (lna == 3) 2369 rssi -= 100; 2370 } 2371 return rssi; 2372} 2373 2374static int 2375rum_pause(struct rum_softc *sc, int timeout) 2376{ 2377 2378 usb_pause_mtx(&sc->sc_mtx, timeout); 2379 return (0); 2380} 2381 2382static device_method_t rum_methods[] = { 2383 /* Device interface */ 2384 DEVMETHOD(device_probe, rum_match), 2385 DEVMETHOD(device_attach, rum_attach), 2386 DEVMETHOD(device_detach, rum_detach), 2387 DEVMETHOD_END 2388}; 2389 2390static driver_t rum_driver = { 2391 .name = "rum", 2392 .methods = rum_methods, 2393 .size = sizeof(struct rum_softc), 2394}; 2395 2396static devclass_t rum_devclass; 2397 2398DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2399MODULE_DEPEND(rum, wlan, 1, 1, 1); 2400MODULE_DEPEND(rum, usb, 1, 1, 1); 2401MODULE_VERSION(rum, 1); 2402