if_rum.c revision 288504
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288504 2015-10-02 15:30:37Z 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 288504 2015-10-02 15:30:37Z 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 usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 190static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 191static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 192 uint32_t); 193static int rum_bbp_busy(struct rum_softc *); 194static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 195static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 196static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 197static void rum_select_antenna(struct rum_softc *); 198static void rum_enable_mrr(struct rum_softc *); 199static void rum_set_txpreamble(struct rum_softc *); 200static void rum_set_basicrates(struct rum_softc *); 201static void rum_select_band(struct rum_softc *, 202 struct ieee80211_channel *); 203static void rum_set_chan(struct rum_softc *, 204 struct ieee80211_channel *); 205static void rum_enable_tsf_sync(struct rum_softc *); 206static void rum_enable_tsf(struct rum_softc *); 207static void rum_abort_tsf_sync(struct rum_softc *); 208static void rum_update_slot(struct rum_softc *); 209static void rum_set_bssid(struct rum_softc *, const uint8_t *); 210static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 211static void rum_update_mcast(struct ieee80211com *); 212static void rum_update_promisc(struct ieee80211com *); 213static void rum_setpromisc(struct rum_softc *); 214static const char *rum_get_rf(int); 215static void rum_read_eeprom(struct rum_softc *); 216static int rum_bbp_init(struct rum_softc *); 217static void rum_init(struct rum_softc *); 218static void rum_stop(struct rum_softc *); 219static void rum_load_microcode(struct rum_softc *, const uint8_t *, 220 size_t); 221static void rum_prepare_beacon(struct rum_softc *, 222 struct ieee80211vap *); 223static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 224 const struct ieee80211_bpf_params *); 225static void rum_scan_start(struct ieee80211com *); 226static void rum_scan_end(struct ieee80211com *); 227static void rum_set_channel(struct ieee80211com *); 228static int rum_get_rssi(struct rum_softc *, uint8_t); 229static void rum_ratectl_start(struct rum_softc *, 230 struct ieee80211_node *); 231static void rum_ratectl_timeout(void *); 232static void rum_ratectl_task(void *, int); 233static int rum_pause(struct rum_softc *, int); 234 235static const struct { 236 uint32_t reg; 237 uint32_t val; 238} rum_def_mac[] = { 239 { RT2573_TXRX_CSR0, 0x025fb032 }, 240 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 241 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 242 { RT2573_TXRX_CSR3, 0x00858687 }, 243 { RT2573_TXRX_CSR7, 0x2e31353b }, 244 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 245 { RT2573_TXRX_CSR15, 0x0000000f }, 246 { RT2573_MAC_CSR6, 0x00000fff }, 247 { RT2573_MAC_CSR8, 0x016c030a }, 248 { RT2573_MAC_CSR10, 0x00000718 }, 249 { RT2573_MAC_CSR12, 0x00000004 }, 250 { RT2573_MAC_CSR13, 0x00007f00 }, 251 { RT2573_SEC_CSR0, 0x00000000 }, 252 { RT2573_SEC_CSR1, 0x00000000 }, 253 { RT2573_SEC_CSR5, 0x00000000 }, 254 { RT2573_PHY_CSR1, 0x000023b0 }, 255 { RT2573_PHY_CSR5, 0x00040a06 }, 256 { RT2573_PHY_CSR6, 0x00080606 }, 257 { RT2573_PHY_CSR7, 0x00000408 }, 258 { RT2573_AIFSN_CSR, 0x00002273 }, 259 { RT2573_CWMIN_CSR, 0x00002344 }, 260 { RT2573_CWMAX_CSR, 0x000034aa } 261}; 262 263static const struct { 264 uint8_t reg; 265 uint8_t val; 266} rum_def_bbp[] = { 267 { 3, 0x80 }, 268 { 15, 0x30 }, 269 { 17, 0x20 }, 270 { 21, 0xc8 }, 271 { 22, 0x38 }, 272 { 23, 0x06 }, 273 { 24, 0xfe }, 274 { 25, 0x0a }, 275 { 26, 0x0d }, 276 { 32, 0x0b }, 277 { 34, 0x12 }, 278 { 37, 0x07 }, 279 { 39, 0xf8 }, 280 { 41, 0x60 }, 281 { 53, 0x10 }, 282 { 54, 0x18 }, 283 { 60, 0x10 }, 284 { 61, 0x04 }, 285 { 62, 0x04 }, 286 { 75, 0xfe }, 287 { 86, 0xfe }, 288 { 88, 0xfe }, 289 { 90, 0x0f }, 290 { 99, 0x00 }, 291 { 102, 0x16 }, 292 { 107, 0x04 } 293}; 294 295static const struct rfprog { 296 uint8_t chan; 297 uint32_t r1, r2, r3, r4; 298} rum_rf5226[] = { 299 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 300 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 301 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 302 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 303 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 304 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 305 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 306 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 307 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 308 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 309 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 310 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 311 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 312 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 313 314 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 315 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 316 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 317 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 318 319 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 320 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 321 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 322 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 323 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 324 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 325 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 326 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 327 328 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 329 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 330 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 331 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 332 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 333 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 334 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 335 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 336 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 337 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 338 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 339 340 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 341 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 342 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 343 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 344 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 345}, rum_rf5225[] = { 346 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 347 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 348 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 349 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 350 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 351 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 352 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 353 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 354 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 355 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 356 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 357 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 358 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 359 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 360 361 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 362 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 363 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 364 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 365 366 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 367 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 368 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 369 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 370 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 371 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 372 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 373 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 374 375 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 376 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 377 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 378 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 379 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 380 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 381 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 382 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 383 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 384 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 385 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 386 387 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 388 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 389 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 390 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 391 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 392}; 393 394static const struct usb_config rum_config[RUM_N_TRANSFER] = { 395 [RUM_BULK_WR] = { 396 .type = UE_BULK, 397 .endpoint = UE_ADDR_ANY, 398 .direction = UE_DIR_OUT, 399 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 400 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 401 .callback = rum_bulk_write_callback, 402 .timeout = 5000, /* ms */ 403 }, 404 [RUM_BULK_RD] = { 405 .type = UE_BULK, 406 .endpoint = UE_ADDR_ANY, 407 .direction = UE_DIR_IN, 408 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 409 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 410 .callback = rum_bulk_read_callback, 411 }, 412}; 413 414static int 415rum_match(device_t self) 416{ 417 struct usb_attach_arg *uaa = device_get_ivars(self); 418 419 if (uaa->usb_mode != USB_MODE_HOST) 420 return (ENXIO); 421 if (uaa->info.bConfigIndex != 0) 422 return (ENXIO); 423 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 424 return (ENXIO); 425 426 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 427} 428 429static int 430rum_attach(device_t self) 431{ 432 struct usb_attach_arg *uaa = device_get_ivars(self); 433 struct rum_softc *sc = device_get_softc(self); 434 struct ieee80211com *ic = &sc->sc_ic; 435 uint8_t iface_index, bands; 436 uint32_t tmp; 437 int error, ntries; 438 439 device_set_usb_desc(self); 440 sc->sc_udev = uaa->device; 441 sc->sc_dev = self; 442 443 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 444 MTX_NETWORK_LOCK, MTX_DEF); 445 mbufq_init(&sc->sc_snd, ifqmaxlen); 446 447 iface_index = RT2573_IFACE_INDEX; 448 error = usbd_transfer_setup(uaa->device, &iface_index, 449 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 450 if (error) { 451 device_printf(self, "could not allocate USB transfers, " 452 "err=%s\n", usbd_errstr(error)); 453 goto detach; 454 } 455 456 RUM_LOCK(sc); 457 /* retrieve RT2573 rev. no */ 458 for (ntries = 0; ntries < 100; ntries++) { 459 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 460 break; 461 if (rum_pause(sc, hz / 100)) 462 break; 463 } 464 if (ntries == 100) { 465 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 466 RUM_UNLOCK(sc); 467 goto detach; 468 } 469 470 /* retrieve MAC address and various other things from EEPROM */ 471 rum_read_eeprom(sc); 472 473 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 474 tmp, rum_get_rf(sc->rf_rev)); 475 476 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 477 RUM_UNLOCK(sc); 478 479 ic->ic_softc = sc; 480 ic->ic_name = device_get_nameunit(self); 481 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 482 483 /* set device capabilities */ 484 ic->ic_caps = 485 IEEE80211_C_STA /* station mode supported */ 486 | IEEE80211_C_IBSS /* IBSS mode supported */ 487 | IEEE80211_C_MONITOR /* monitor mode supported */ 488 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 489 | IEEE80211_C_TXPMGT /* tx power management */ 490 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 491 | IEEE80211_C_SHSLOT /* short slot time supported */ 492 | IEEE80211_C_BGSCAN /* bg scanning supported */ 493 | IEEE80211_C_WPA /* 802.11i */ 494 ; 495 496 bands = 0; 497 setbit(&bands, IEEE80211_MODE_11B); 498 setbit(&bands, IEEE80211_MODE_11G); 499 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 500 setbit(&bands, IEEE80211_MODE_11A); 501 ieee80211_init_channels(ic, NULL, &bands); 502 503 ieee80211_ifattach(ic); 504 ic->ic_update_promisc = rum_update_promisc; 505 ic->ic_raw_xmit = rum_raw_xmit; 506 ic->ic_scan_start = rum_scan_start; 507 ic->ic_scan_end = rum_scan_end; 508 ic->ic_set_channel = rum_set_channel; 509 ic->ic_transmit = rum_transmit; 510 ic->ic_parent = rum_parent; 511 ic->ic_vap_create = rum_vap_create; 512 ic->ic_vap_delete = rum_vap_delete; 513 ic->ic_update_mcast = rum_update_mcast; 514 515 ieee80211_radiotap_attach(ic, 516 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 517 RT2573_TX_RADIOTAP_PRESENT, 518 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 519 RT2573_RX_RADIOTAP_PRESENT); 520 521 if (bootverbose) 522 ieee80211_announce(ic); 523 524 return (0); 525 526detach: 527 rum_detach(self); 528 return (ENXIO); /* failure */ 529} 530 531static int 532rum_detach(device_t self) 533{ 534 struct rum_softc *sc = device_get_softc(self); 535 536 /* Prevent further ioctls */ 537 RUM_LOCK(sc); 538 sc->sc_detached = 1; 539 RUM_UNLOCK(sc); 540 541 /* stop all USB transfers */ 542 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 543 544 /* free TX list, if any */ 545 RUM_LOCK(sc); 546 rum_unsetup_tx_list(sc); 547 RUM_UNLOCK(sc); 548 549 if (sc->sc_ic.ic_softc == sc) 550 ieee80211_ifdetach(&sc->sc_ic); 551 mbufq_drain(&sc->sc_snd); 552 mtx_destroy(&sc->sc_mtx); 553 return (0); 554} 555 556static usb_error_t 557rum_do_request(struct rum_softc *sc, 558 struct usb_device_request *req, void *data) 559{ 560 usb_error_t err; 561 int ntries = 10; 562 563 while (ntries--) { 564 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 565 req, data, 0, NULL, 250 /* ms */); 566 if (err == 0) 567 break; 568 569 DPRINTFN(1, "Control request failed, %s (retrying)\n", 570 usbd_errstr(err)); 571 if (rum_pause(sc, hz / 100)) 572 break; 573 } 574 return (err); 575} 576 577static struct ieee80211vap * 578rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 579 enum ieee80211_opmode opmode, int flags, 580 const uint8_t bssid[IEEE80211_ADDR_LEN], 581 const uint8_t mac[IEEE80211_ADDR_LEN]) 582{ 583 struct rum_softc *sc = ic->ic_softc; 584 struct rum_vap *rvp; 585 struct ieee80211vap *vap; 586 587 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 588 return NULL; 589 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 590 vap = &rvp->vap; 591 /* enable s/w bmiss handling for sta mode */ 592 593 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 594 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 595 /* out of memory */ 596 free(rvp, M_80211_VAP); 597 return (NULL); 598 } 599 600 /* override state transition machine */ 601 rvp->newstate = vap->iv_newstate; 602 vap->iv_newstate = rum_newstate; 603 604 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 605 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 606 ieee80211_ratectl_init(vap); 607 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 608 /* complete setup */ 609 ieee80211_vap_attach(vap, ieee80211_media_change, 610 ieee80211_media_status, mac); 611 ic->ic_opmode = opmode; 612 return vap; 613} 614 615static void 616rum_vap_delete(struct ieee80211vap *vap) 617{ 618 struct rum_vap *rvp = RUM_VAP(vap); 619 struct ieee80211com *ic = vap->iv_ic; 620 621 usb_callout_drain(&rvp->ratectl_ch); 622 ieee80211_draintask(ic, &rvp->ratectl_task); 623 ieee80211_ratectl_deinit(vap); 624 ieee80211_vap_detach(vap); 625 free(rvp, M_80211_VAP); 626} 627 628static void 629rum_tx_free(struct rum_tx_data *data, int txerr) 630{ 631 struct rum_softc *sc = data->sc; 632 633 if (data->m != NULL) { 634 ieee80211_tx_complete(data->ni, data->m, txerr); 635 data->m = NULL; 636 data->ni = NULL; 637 } 638 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 639 sc->tx_nfree++; 640} 641 642static void 643rum_setup_tx_list(struct rum_softc *sc) 644{ 645 struct rum_tx_data *data; 646 int i; 647 648 sc->tx_nfree = 0; 649 STAILQ_INIT(&sc->tx_q); 650 STAILQ_INIT(&sc->tx_free); 651 652 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 653 data = &sc->tx_data[i]; 654 655 data->sc = sc; 656 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 657 sc->tx_nfree++; 658 } 659} 660 661static void 662rum_unsetup_tx_list(struct rum_softc *sc) 663{ 664 struct rum_tx_data *data; 665 int i; 666 667 /* make sure any subsequent use of the queues will fail */ 668 sc->tx_nfree = 0; 669 STAILQ_INIT(&sc->tx_q); 670 STAILQ_INIT(&sc->tx_free); 671 672 /* free up all node references and mbufs */ 673 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 674 data = &sc->tx_data[i]; 675 676 if (data->m != NULL) { 677 m_freem(data->m); 678 data->m = NULL; 679 } 680 if (data->ni != NULL) { 681 ieee80211_free_node(data->ni); 682 data->ni = NULL; 683 } 684 } 685} 686 687static int 688rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 689{ 690 struct rum_vap *rvp = RUM_VAP(vap); 691 struct ieee80211com *ic = vap->iv_ic; 692 struct rum_softc *sc = ic->ic_softc; 693 const struct ieee80211_txparam *tp; 694 enum ieee80211_state ostate; 695 struct ieee80211_node *ni; 696 697 ostate = vap->iv_state; 698 DPRINTF("%s -> %s\n", 699 ieee80211_state_name[ostate], 700 ieee80211_state_name[nstate]); 701 702 IEEE80211_UNLOCK(ic); 703 RUM_LOCK(sc); 704 usb_callout_stop(&rvp->ratectl_ch); 705 706 switch (nstate) { 707 case IEEE80211_S_INIT: 708 if (ostate == IEEE80211_S_RUN) 709 rum_abort_tsf_sync(sc); 710 711 break; 712 713 case IEEE80211_S_RUN: 714 ni = ieee80211_ref_node(vap->iv_bss); 715 716 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 717 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 718 RUM_UNLOCK(sc); 719 IEEE80211_LOCK(ic); 720 ieee80211_free_node(ni); 721 return (-1); 722 } 723 rum_update_slot(sc); 724 rum_enable_mrr(sc); 725 rum_set_txpreamble(sc); 726 rum_set_basicrates(sc); 727 IEEE80211_ADDR_COPY(ic->ic_macaddr, ni->ni_bssid); 728 rum_set_bssid(sc, ic->ic_macaddr); 729 } 730 731 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 732 vap->iv_opmode == IEEE80211_M_IBSS) 733 rum_prepare_beacon(sc, vap); 734 735 if (vap->iv_opmode != IEEE80211_M_MONITOR) 736 rum_enable_tsf_sync(sc); 737 else 738 rum_enable_tsf(sc); 739 740 /* enable automatic rate adaptation */ 741 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 742 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 743 rum_ratectl_start(sc, ni); 744 ieee80211_free_node(ni); 745 break; 746 default: 747 break; 748 } 749 RUM_UNLOCK(sc); 750 IEEE80211_LOCK(ic); 751 return (rvp->newstate(vap, nstate, arg)); 752} 753 754static void 755rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 756{ 757 struct rum_softc *sc = usbd_xfer_softc(xfer); 758 struct ieee80211vap *vap; 759 struct rum_tx_data *data; 760 struct mbuf *m; 761 struct usb_page_cache *pc; 762 unsigned int len; 763 int actlen, sumlen; 764 765 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 766 767 switch (USB_GET_STATE(xfer)) { 768 case USB_ST_TRANSFERRED: 769 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 770 771 /* free resources */ 772 data = usbd_xfer_get_priv(xfer); 773 rum_tx_free(data, 0); 774 usbd_xfer_set_priv(xfer, NULL); 775 776 /* FALLTHROUGH */ 777 case USB_ST_SETUP: 778tr_setup: 779 data = STAILQ_FIRST(&sc->tx_q); 780 if (data) { 781 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 782 m = data->m; 783 784 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 785 DPRINTFN(0, "data overflow, %u bytes\n", 786 m->m_pkthdr.len); 787 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 788 } 789 pc = usbd_xfer_get_frame(xfer, 0); 790 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 791 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 792 m->m_pkthdr.len); 793 794 vap = data->ni->ni_vap; 795 if (ieee80211_radiotap_active_vap(vap)) { 796 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 797 798 tap->wt_flags = 0; 799 tap->wt_rate = data->rate; 800 tap->wt_antenna = sc->tx_ant; 801 802 ieee80211_radiotap_tx(vap, m); 803 } 804 805 /* align end on a 4-bytes boundary */ 806 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 807 if ((len % 64) == 0) 808 len += 4; 809 810 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 811 m->m_pkthdr.len, len); 812 813 usbd_xfer_set_frame_len(xfer, 0, len); 814 usbd_xfer_set_priv(xfer, data); 815 816 usbd_transfer_submit(xfer); 817 } 818 rum_start(sc); 819 break; 820 821 default: /* Error */ 822 DPRINTFN(11, "transfer error, %s\n", 823 usbd_errstr(error)); 824 825 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 826 data = usbd_xfer_get_priv(xfer); 827 if (data != NULL) { 828 rum_tx_free(data, error); 829 usbd_xfer_set_priv(xfer, NULL); 830 } 831 832 if (error != USB_ERR_CANCELLED) { 833 if (error == USB_ERR_TIMEOUT) 834 device_printf(sc->sc_dev, "device timeout\n"); 835 836 /* 837 * Try to clear stall first, also if other 838 * errors occur, hence clearing stall 839 * introduces a 50 ms delay: 840 */ 841 usbd_xfer_set_stall(xfer); 842 goto tr_setup; 843 } 844 break; 845 } 846} 847 848static void 849rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 850{ 851 struct rum_softc *sc = usbd_xfer_softc(xfer); 852 struct ieee80211com *ic = &sc->sc_ic; 853 struct ieee80211_node *ni; 854 struct mbuf *m = NULL; 855 struct usb_page_cache *pc; 856 uint32_t flags; 857 uint8_t rssi = 0; 858 int len; 859 860 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 861 862 switch (USB_GET_STATE(xfer)) { 863 case USB_ST_TRANSFERRED: 864 865 DPRINTFN(15, "rx done, actlen=%d\n", len); 866 867 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 868 DPRINTF("%s: xfer too short %d\n", 869 device_get_nameunit(sc->sc_dev), len); 870 counter_u64_add(ic->ic_ierrors, 1); 871 goto tr_setup; 872 } 873 874 len -= RT2573_RX_DESC_SIZE; 875 pc = usbd_xfer_get_frame(xfer, 0); 876 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 877 878 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 879 flags = le32toh(sc->sc_rx_desc.flags); 880 if (flags & RT2573_RX_CRC_ERROR) { 881 /* 882 * This should not happen since we did not 883 * request to receive those frames when we 884 * filled RUM_TXRX_CSR2: 885 */ 886 DPRINTFN(5, "PHY or CRC error\n"); 887 counter_u64_add(ic->ic_ierrors, 1); 888 goto tr_setup; 889 } 890 891 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 892 if (m == NULL) { 893 DPRINTF("could not allocate mbuf\n"); 894 counter_u64_add(ic->ic_ierrors, 1); 895 goto tr_setup; 896 } 897 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 898 mtod(m, uint8_t *), len); 899 900 /* finalize mbuf */ 901 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 902 903 if (ieee80211_radiotap_active(ic)) { 904 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 905 906 /* XXX read tsf */ 907 tap->wr_flags = 0; 908 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 909 (flags & RT2573_RX_OFDM) ? 910 IEEE80211_T_OFDM : IEEE80211_T_CCK); 911 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 912 tap->wr_antnoise = RT2573_NOISE_FLOOR; 913 tap->wr_antenna = sc->rx_ant; 914 } 915 /* FALLTHROUGH */ 916 case USB_ST_SETUP: 917tr_setup: 918 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 919 usbd_transfer_submit(xfer); 920 921 /* 922 * At the end of a USB callback it is always safe to unlock 923 * the private mutex of a device! That is why we do the 924 * "ieee80211_input" here, and not some lines up! 925 */ 926 RUM_UNLOCK(sc); 927 if (m) { 928 ni = ieee80211_find_rxnode(ic, 929 mtod(m, struct ieee80211_frame_min *)); 930 if (ni != NULL) { 931 (void) ieee80211_input(ni, m, rssi, 932 RT2573_NOISE_FLOOR); 933 ieee80211_free_node(ni); 934 } else 935 (void) ieee80211_input_all(ic, m, rssi, 936 RT2573_NOISE_FLOOR); 937 } 938 RUM_LOCK(sc); 939 rum_start(sc); 940 return; 941 942 default: /* Error */ 943 if (error != USB_ERR_CANCELLED) { 944 /* try to clear stall first */ 945 usbd_xfer_set_stall(xfer); 946 goto tr_setup; 947 } 948 return; 949 } 950} 951 952static uint8_t 953rum_plcp_signal(int rate) 954{ 955 switch (rate) { 956 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 957 case 12: return 0xb; 958 case 18: return 0xf; 959 case 24: return 0xa; 960 case 36: return 0xe; 961 case 48: return 0x9; 962 case 72: return 0xd; 963 case 96: return 0x8; 964 case 108: return 0xc; 965 966 /* CCK rates (NB: not IEEE std, device-specific) */ 967 case 2: return 0x0; 968 case 4: return 0x1; 969 case 11: return 0x2; 970 case 22: return 0x3; 971 } 972 return 0xff; /* XXX unsupported/unknown rate */ 973} 974 975static void 976rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 977 uint32_t flags, uint16_t xflags, int len, int rate) 978{ 979 struct ieee80211com *ic = &sc->sc_ic; 980 uint16_t plcp_length; 981 int remainder; 982 983 desc->flags = htole32(flags); 984 desc->flags |= htole32(RT2573_TX_VALID); 985 desc->flags |= htole32(len << 16); 986 987 desc->xflags = htole16(xflags); 988 989 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 990 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 991 992 /* setup PLCP fields */ 993 desc->plcp_signal = rum_plcp_signal(rate); 994 desc->plcp_service = 4; 995 996 len += IEEE80211_CRC_LEN; 997 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 998 desc->flags |= htole32(RT2573_TX_OFDM); 999 1000 plcp_length = len & 0xfff; 1001 desc->plcp_length_hi = plcp_length >> 6; 1002 desc->plcp_length_lo = plcp_length & 0x3f; 1003 } else { 1004 if (rate == 0) 1005 rate = 2; /* avoid division by zero */ 1006 plcp_length = (16 * len + rate - 1) / rate; 1007 if (rate == 22) { 1008 remainder = (16 * len) % 22; 1009 if (remainder != 0 && remainder < 7) 1010 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1011 } 1012 desc->plcp_length_hi = plcp_length >> 8; 1013 desc->plcp_length_lo = plcp_length & 0xff; 1014 1015 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1016 desc->plcp_signal |= 0x08; 1017 } 1018} 1019 1020static int 1021rum_sendprot(struct rum_softc *sc, 1022 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1023{ 1024 struct ieee80211com *ic = ni->ni_ic; 1025 const struct ieee80211_frame *wh; 1026 struct rum_tx_data *data; 1027 struct mbuf *mprot; 1028 int protrate, ackrate, pktlen, flags, isshort; 1029 uint16_t dur; 1030 1031 RUM_LOCK_ASSERT(sc, MA_OWNED); 1032 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1033 ("protection %d", prot)); 1034 1035 wh = mtod(m, const struct ieee80211_frame *); 1036 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1037 1038 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1039 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1040 1041 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1042 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1043 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1044 flags = RT2573_TX_MORE_FRAG; 1045 if (prot == IEEE80211_PROT_RTSCTS) { 1046 /* NB: CTS is the same size as an ACK */ 1047 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1048 flags |= RT2573_TX_NEED_ACK; 1049 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1050 } else { 1051 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1052 } 1053 if (mprot == NULL) { 1054 /* XXX stat + msg */ 1055 return (ENOBUFS); 1056 } 1057 data = STAILQ_FIRST(&sc->tx_free); 1058 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1059 sc->tx_nfree--; 1060 1061 data->m = mprot; 1062 data->ni = ieee80211_ref_node(ni); 1063 data->rate = protrate; 1064 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1065 1066 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1067 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1068 1069 return 0; 1070} 1071 1072static int 1073rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1074{ 1075 struct ieee80211vap *vap = ni->ni_vap; 1076 struct ieee80211com *ic = &sc->sc_ic; 1077 struct rum_tx_data *data; 1078 struct ieee80211_frame *wh; 1079 const struct ieee80211_txparam *tp; 1080 struct ieee80211_key *k; 1081 uint32_t flags = 0; 1082 uint16_t dur; 1083 1084 RUM_LOCK_ASSERT(sc, MA_OWNED); 1085 1086 data = STAILQ_FIRST(&sc->tx_free); 1087 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1088 sc->tx_nfree--; 1089 1090 wh = mtod(m0, struct ieee80211_frame *); 1091 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1092 k = ieee80211_crypto_encap(ni, m0); 1093 if (k == NULL) { 1094 m_freem(m0); 1095 return ENOBUFS; 1096 } 1097 wh = mtod(m0, struct ieee80211_frame *); 1098 } 1099 1100 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1101 1102 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1103 flags |= RT2573_TX_NEED_ACK; 1104 1105 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1106 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1107 USETW(wh->i_dur, dur); 1108 1109 /* tell hardware to add timestamp for probe responses */ 1110 if ((wh->i_fc[0] & 1111 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1112 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1113 flags |= RT2573_TX_TIMESTAMP; 1114 } 1115 1116 data->m = m0; 1117 data->ni = ni; 1118 data->rate = tp->mgmtrate; 1119 1120 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1121 1122 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1123 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1124 1125 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1126 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1127 1128 return (0); 1129} 1130 1131static int 1132rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1133 const struct ieee80211_bpf_params *params) 1134{ 1135 struct ieee80211com *ic = ni->ni_ic; 1136 struct rum_tx_data *data; 1137 uint32_t flags; 1138 int rate, error; 1139 1140 RUM_LOCK_ASSERT(sc, MA_OWNED); 1141 KASSERT(params != NULL, ("no raw xmit params")); 1142 1143 rate = params->ibp_rate0; 1144 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1145 m_freem(m0); 1146 return EINVAL; 1147 } 1148 flags = 0; 1149 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1150 flags |= RT2573_TX_NEED_ACK; 1151 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1152 error = rum_sendprot(sc, m0, ni, 1153 params->ibp_flags & IEEE80211_BPF_RTS ? 1154 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1155 rate); 1156 if (error || sc->tx_nfree == 0) { 1157 m_freem(m0); 1158 return ENOBUFS; 1159 } 1160 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1161 } 1162 1163 data = STAILQ_FIRST(&sc->tx_free); 1164 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1165 sc->tx_nfree--; 1166 1167 data->m = m0; 1168 data->ni = ni; 1169 data->rate = rate; 1170 1171 /* XXX need to setup descriptor ourself */ 1172 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1173 1174 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1175 m0->m_pkthdr.len, rate); 1176 1177 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1178 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1179 1180 return 0; 1181} 1182 1183static int 1184rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1185{ 1186 struct ieee80211vap *vap = ni->ni_vap; 1187 struct ieee80211com *ic = &sc->sc_ic; 1188 struct rum_tx_data *data; 1189 struct ieee80211_frame *wh; 1190 const struct ieee80211_txparam *tp; 1191 struct ieee80211_key *k; 1192 uint32_t flags = 0; 1193 uint16_t dur; 1194 int error, rate; 1195 1196 RUM_LOCK_ASSERT(sc, MA_OWNED); 1197 1198 wh = mtod(m0, struct ieee80211_frame *); 1199 1200 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1201 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1202 rate = tp->mcastrate; 1203 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1204 rate = tp->ucastrate; 1205 else 1206 rate = ni->ni_txrate; 1207 1208 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1209 k = ieee80211_crypto_encap(ni, m0); 1210 if (k == NULL) { 1211 m_freem(m0); 1212 return ENOBUFS; 1213 } 1214 1215 /* packet header may have moved, reset our local pointer */ 1216 wh = mtod(m0, struct ieee80211_frame *); 1217 } 1218 1219 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1220 int prot = IEEE80211_PROT_NONE; 1221 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1222 prot = IEEE80211_PROT_RTSCTS; 1223 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1224 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1225 prot = ic->ic_protmode; 1226 if (prot != IEEE80211_PROT_NONE) { 1227 error = rum_sendprot(sc, m0, ni, prot, rate); 1228 if (error || sc->tx_nfree == 0) { 1229 m_freem(m0); 1230 return ENOBUFS; 1231 } 1232 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1233 } 1234 } 1235 1236 data = STAILQ_FIRST(&sc->tx_free); 1237 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1238 sc->tx_nfree--; 1239 1240 data->m = m0; 1241 data->ni = ni; 1242 data->rate = rate; 1243 1244 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1245 flags |= RT2573_TX_NEED_ACK; 1246 flags |= RT2573_TX_MORE_FRAG; 1247 1248 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1249 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1250 USETW(wh->i_dur, dur); 1251 } 1252 1253 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1254 1255 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1256 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1257 1258 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1259 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1260 1261 return 0; 1262} 1263 1264static int 1265rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1266{ 1267 struct rum_softc *sc = ic->ic_softc; 1268 int error; 1269 1270 RUM_LOCK(sc); 1271 if (!sc->sc_running) { 1272 RUM_UNLOCK(sc); 1273 return (ENXIO); 1274 } 1275 error = mbufq_enqueue(&sc->sc_snd, m); 1276 if (error) { 1277 RUM_UNLOCK(sc); 1278 return (error); 1279 } 1280 rum_start(sc); 1281 RUM_UNLOCK(sc); 1282 1283 return (0); 1284} 1285 1286static void 1287rum_start(struct rum_softc *sc) 1288{ 1289 struct ieee80211_node *ni; 1290 struct mbuf *m; 1291 1292 RUM_LOCK_ASSERT(sc, MA_OWNED); 1293 1294 if (!sc->sc_running) 1295 return; 1296 1297 while (sc->tx_nfree >= RUM_TX_MINFREE && 1298 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1299 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1300 if (rum_tx_data(sc, m, ni) != 0) { 1301 if_inc_counter(ni->ni_vap->iv_ifp, 1302 IFCOUNTER_OERRORS, 1); 1303 ieee80211_free_node(ni); 1304 break; 1305 } 1306 } 1307} 1308 1309static void 1310rum_parent(struct ieee80211com *ic) 1311{ 1312 struct rum_softc *sc = ic->ic_softc; 1313 int startall = 0; 1314 1315 RUM_LOCK(sc); 1316 if (sc->sc_detached) { 1317 RUM_UNLOCK(sc); 1318 return; 1319 } 1320 if (ic->ic_nrunning > 0) { 1321 if (!sc->sc_running) { 1322 rum_init(sc); 1323 startall = 1; 1324 } else 1325 rum_setpromisc(sc); 1326 } else if (sc->sc_running) 1327 rum_stop(sc); 1328 RUM_UNLOCK(sc); 1329 if (startall) 1330 ieee80211_start_all(ic); 1331} 1332 1333static void 1334rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1335{ 1336 struct usb_device_request req; 1337 usb_error_t error; 1338 1339 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1340 req.bRequest = RT2573_READ_EEPROM; 1341 USETW(req.wValue, 0); 1342 USETW(req.wIndex, addr); 1343 USETW(req.wLength, len); 1344 1345 error = rum_do_request(sc, &req, buf); 1346 if (error != 0) { 1347 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1348 usbd_errstr(error)); 1349 } 1350} 1351 1352static uint32_t 1353rum_read(struct rum_softc *sc, uint16_t reg) 1354{ 1355 uint32_t val; 1356 1357 rum_read_multi(sc, reg, &val, sizeof val); 1358 1359 return le32toh(val); 1360} 1361 1362static void 1363rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1364{ 1365 struct usb_device_request req; 1366 usb_error_t error; 1367 1368 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1369 req.bRequest = RT2573_READ_MULTI_MAC; 1370 USETW(req.wValue, 0); 1371 USETW(req.wIndex, reg); 1372 USETW(req.wLength, len); 1373 1374 error = rum_do_request(sc, &req, buf); 1375 if (error != 0) { 1376 device_printf(sc->sc_dev, 1377 "could not multi read MAC register: %s\n", 1378 usbd_errstr(error)); 1379 } 1380} 1381 1382static usb_error_t 1383rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1384{ 1385 uint32_t tmp = htole32(val); 1386 1387 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1388} 1389 1390static usb_error_t 1391rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1392{ 1393 struct usb_device_request req; 1394 usb_error_t error; 1395 size_t offset; 1396 1397 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1398 req.bRequest = RT2573_WRITE_MULTI_MAC; 1399 USETW(req.wValue, 0); 1400 1401 /* write at most 64 bytes at a time */ 1402 for (offset = 0; offset < len; offset += 64) { 1403 USETW(req.wIndex, reg + offset); 1404 USETW(req.wLength, MIN(len - offset, 64)); 1405 1406 error = rum_do_request(sc, &req, (char *)buf + offset); 1407 if (error != 0) { 1408 device_printf(sc->sc_dev, 1409 "could not multi write MAC register: %s\n", 1410 usbd_errstr(error)); 1411 return (error); 1412 } 1413 } 1414 1415 return (USB_ERR_NORMAL_COMPLETION); 1416} 1417 1418static usb_error_t 1419rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1420{ 1421 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1422} 1423 1424static usb_error_t 1425rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1426{ 1427 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1428} 1429 1430static usb_error_t 1431rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1432{ 1433 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1434} 1435 1436static int 1437rum_bbp_busy(struct rum_softc *sc) 1438{ 1439 int ntries; 1440 1441 for (ntries = 0; ntries < 100; ntries++) { 1442 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1443 break; 1444 if (rum_pause(sc, hz / 100)) 1445 break; 1446 } 1447 if (ntries == 100) 1448 return (ETIMEDOUT); 1449 1450 return (0); 1451} 1452 1453static void 1454rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1455{ 1456 uint32_t tmp; 1457 1458 DPRINTFN(2, "reg=0x%08x\n", reg); 1459 1460 if (rum_bbp_busy(sc) != 0) { 1461 device_printf(sc->sc_dev, "could not write to BBP\n"); 1462 return; 1463 } 1464 1465 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1466 rum_write(sc, RT2573_PHY_CSR3, tmp); 1467} 1468 1469static uint8_t 1470rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1471{ 1472 uint32_t val; 1473 int ntries; 1474 1475 DPRINTFN(2, "reg=0x%08x\n", reg); 1476 1477 if (rum_bbp_busy(sc) != 0) { 1478 device_printf(sc->sc_dev, "could not read BBP\n"); 1479 return 0; 1480 } 1481 1482 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1483 rum_write(sc, RT2573_PHY_CSR3, val); 1484 1485 for (ntries = 0; ntries < 100; ntries++) { 1486 val = rum_read(sc, RT2573_PHY_CSR3); 1487 if (!(val & RT2573_BBP_BUSY)) 1488 return val & 0xff; 1489 if (rum_pause(sc, hz / 100)) 1490 break; 1491 } 1492 1493 device_printf(sc->sc_dev, "could not read BBP\n"); 1494 return 0; 1495} 1496 1497static void 1498rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1499{ 1500 uint32_t tmp; 1501 int ntries; 1502 1503 for (ntries = 0; ntries < 100; ntries++) { 1504 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1505 break; 1506 if (rum_pause(sc, hz / 100)) 1507 break; 1508 } 1509 if (ntries == 100) { 1510 device_printf(sc->sc_dev, "could not write to RF\n"); 1511 return; 1512 } 1513 1514 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1515 (reg & 3); 1516 rum_write(sc, RT2573_PHY_CSR4, tmp); 1517 1518 /* remember last written value in sc */ 1519 sc->rf_regs[reg] = val; 1520 1521 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1522} 1523 1524static void 1525rum_select_antenna(struct rum_softc *sc) 1526{ 1527 uint8_t bbp4, bbp77; 1528 uint32_t tmp; 1529 1530 bbp4 = rum_bbp_read(sc, 4); 1531 bbp77 = rum_bbp_read(sc, 77); 1532 1533 /* TBD */ 1534 1535 /* make sure Rx is disabled before switching antenna */ 1536 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1537 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1538 1539 rum_bbp_write(sc, 4, bbp4); 1540 rum_bbp_write(sc, 77, bbp77); 1541 1542 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1543} 1544 1545/* 1546 * Enable multi-rate retries for frames sent at OFDM rates. 1547 * In 802.11b/g mode, allow fallback to CCK rates. 1548 */ 1549static void 1550rum_enable_mrr(struct rum_softc *sc) 1551{ 1552 struct ieee80211com *ic = &sc->sc_ic; 1553 1554 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1555 rum_setbits(sc, RT2573_TXRX_CSR4, 1556 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1557 } else { 1558 rum_modbits(sc, RT2573_TXRX_CSR4, 1559 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1560 } 1561} 1562 1563static void 1564rum_set_txpreamble(struct rum_softc *sc) 1565{ 1566 struct ieee80211com *ic = &sc->sc_ic; 1567 1568 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1569 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1570 else 1571 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1572} 1573 1574static void 1575rum_set_basicrates(struct rum_softc *sc) 1576{ 1577 struct ieee80211com *ic = &sc->sc_ic; 1578 1579 /* update basic rate set */ 1580 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1581 /* 11b basic rates: 1, 2Mbps */ 1582 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1583 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1584 /* 11a basic rates: 6, 12, 24Mbps */ 1585 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1586 } else { 1587 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1588 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1589 } 1590} 1591 1592/* 1593 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1594 * driver. 1595 */ 1596static void 1597rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1598{ 1599 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1600 1601 /* update all BBP registers that depend on the band */ 1602 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1603 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1604 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1605 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1606 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1607 } 1608 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1609 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1610 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1611 } 1612 1613 sc->bbp17 = bbp17; 1614 rum_bbp_write(sc, 17, bbp17); 1615 rum_bbp_write(sc, 96, bbp96); 1616 rum_bbp_write(sc, 104, bbp104); 1617 1618 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1619 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1620 rum_bbp_write(sc, 75, 0x80); 1621 rum_bbp_write(sc, 86, 0x80); 1622 rum_bbp_write(sc, 88, 0x80); 1623 } 1624 1625 rum_bbp_write(sc, 35, bbp35); 1626 rum_bbp_write(sc, 97, bbp97); 1627 rum_bbp_write(sc, 98, bbp98); 1628 1629 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1630 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1631 RT2573_PA_PE_5GHZ); 1632 } else { 1633 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1634 RT2573_PA_PE_2GHZ); 1635 } 1636} 1637 1638static void 1639rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1640{ 1641 struct ieee80211com *ic = &sc->sc_ic; 1642 const struct rfprog *rfprog; 1643 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1644 int8_t power; 1645 int i, chan; 1646 1647 chan = ieee80211_chan2ieee(ic, c); 1648 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1649 return; 1650 1651 /* select the appropriate RF settings based on what EEPROM says */ 1652 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1653 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1654 1655 /* find the settings for this channel (we know it exists) */ 1656 for (i = 0; rfprog[i].chan != chan; i++); 1657 1658 power = sc->txpow[i]; 1659 if (power < 0) { 1660 bbp94 += power; 1661 power = 0; 1662 } else if (power > 31) { 1663 bbp94 += power - 31; 1664 power = 31; 1665 } 1666 1667 /* 1668 * If we are switching from the 2GHz band to the 5GHz band or 1669 * vice-versa, BBP registers need to be reprogrammed. 1670 */ 1671 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1672 rum_select_band(sc, c); 1673 rum_select_antenna(sc); 1674 } 1675 ic->ic_curchan = c; 1676 1677 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1678 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1679 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1680 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1681 1682 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1683 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1684 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1685 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1686 1687 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1688 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1689 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1690 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1691 1692 rum_pause(sc, hz / 100); 1693 1694 /* enable smart mode for MIMO-capable RFs */ 1695 bbp3 = rum_bbp_read(sc, 3); 1696 1697 bbp3 &= ~RT2573_SMART_MODE; 1698 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1699 bbp3 |= RT2573_SMART_MODE; 1700 1701 rum_bbp_write(sc, 3, bbp3); 1702 1703 if (bbp94 != RT2573_BBPR94_DEFAULT) 1704 rum_bbp_write(sc, 94, bbp94); 1705 1706 /* give the chip some extra time to do the switchover */ 1707 rum_pause(sc, hz / 100); 1708} 1709 1710/* 1711 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1712 * and HostAP operating modes. 1713 */ 1714static void 1715rum_enable_tsf_sync(struct rum_softc *sc) 1716{ 1717 struct ieee80211com *ic = &sc->sc_ic; 1718 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1719 uint32_t tmp; 1720 1721 if (vap->iv_opmode != IEEE80211_M_STA) { 1722 /* 1723 * Change default 16ms TBTT adjustment to 8ms. 1724 * Must be done before enabling beacon generation. 1725 */ 1726 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1727 } 1728 1729 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1730 1731 /* set beacon interval (in 1/16ms unit) */ 1732 tmp |= vap->iv_bss->ni_intval * 16; 1733 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1734 1735 switch (vap->iv_opmode) { 1736 case IEEE80211_M_STA: 1737 /* 1738 * Local TSF is always updated with remote TSF on beacon 1739 * reception. 1740 */ 1741 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 1742 break; 1743 case IEEE80211_M_IBSS: 1744 /* 1745 * Local TSF is updated with remote TSF on beacon reception 1746 * only if the remote TSF is greater than local TSF. 1747 */ 1748 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 1749 tmp |= RT2573_BCN_TX_EN; 1750 break; 1751 case IEEE80211_M_HOSTAP: 1752 /* SYNC with nobody */ 1753 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 1754 tmp |= RT2573_BCN_TX_EN; 1755 break; 1756 default: 1757 device_printf(sc->sc_dev, 1758 "Enabling TSF failed. undefined opmode %d\n", 1759 vap->iv_opmode); 1760 return; 1761 } 1762 1763 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1764} 1765 1766static void 1767rum_enable_tsf(struct rum_softc *sc) 1768{ 1769 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 1770 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 1771} 1772 1773static void 1774rum_abort_tsf_sync(struct rum_softc *sc) 1775{ 1776 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 1777} 1778 1779static void 1780rum_update_slot(struct rum_softc *sc) 1781{ 1782 struct ieee80211com *ic = &sc->sc_ic; 1783 uint8_t slottime; 1784 1785 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1786 1787 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 1788 1789 DPRINTF("setting slot time to %uus\n", slottime); 1790} 1791 1792static void 1793rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1794{ 1795 uint32_t tmp; 1796 1797 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1798 rum_write(sc, RT2573_MAC_CSR4, tmp); 1799 1800 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1801 rum_write(sc, RT2573_MAC_CSR5, tmp); 1802} 1803 1804static void 1805rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1806{ 1807 uint32_t tmp; 1808 1809 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1810 rum_write(sc, RT2573_MAC_CSR2, tmp); 1811 1812 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1813 rum_write(sc, RT2573_MAC_CSR3, tmp); 1814} 1815 1816static void 1817rum_setpromisc(struct rum_softc *sc) 1818{ 1819 struct ieee80211com *ic = &sc->sc_ic; 1820 1821 if (ic->ic_promisc == 0) 1822 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1823 else 1824 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1825 1826 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 1827 "entering" : "leaving"); 1828} 1829 1830static void 1831rum_update_promisc(struct ieee80211com *ic) 1832{ 1833 struct rum_softc *sc = ic->ic_softc; 1834 1835 RUM_LOCK(sc); 1836 if (!sc->sc_running) { 1837 RUM_UNLOCK(sc); 1838 return; 1839 } 1840 rum_setpromisc(sc); 1841 RUM_UNLOCK(sc); 1842} 1843 1844static void 1845rum_update_mcast(struct ieee80211com *ic) 1846{ 1847 static int warning_printed; 1848 1849 if (warning_printed == 0) { 1850 ic_printf(ic, "need to implement %s\n", __func__); 1851 warning_printed = 1; 1852 } 1853} 1854 1855static const char * 1856rum_get_rf(int rev) 1857{ 1858 switch (rev) { 1859 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1860 case RT2573_RF_2528: return "RT2528"; 1861 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1862 case RT2573_RF_5226: return "RT5226"; 1863 default: return "unknown"; 1864 } 1865} 1866 1867static void 1868rum_read_eeprom(struct rum_softc *sc) 1869{ 1870 uint16_t val; 1871#ifdef RUM_DEBUG 1872 int i; 1873#endif 1874 1875 /* read MAC address */ 1876 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 1877 1878 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1879 val = le16toh(val); 1880 sc->rf_rev = (val >> 11) & 0x1f; 1881 sc->hw_radio = (val >> 10) & 0x1; 1882 sc->rx_ant = (val >> 4) & 0x3; 1883 sc->tx_ant = (val >> 2) & 0x3; 1884 sc->nb_ant = val & 0x3; 1885 1886 DPRINTF("RF revision=%d\n", sc->rf_rev); 1887 1888 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1889 val = le16toh(val); 1890 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1891 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1892 1893 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1894 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1895 1896 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1897 val = le16toh(val); 1898 if ((val & 0xff) != 0xff) 1899 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1900 1901 /* Only [-10, 10] is valid */ 1902 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1903 sc->rssi_2ghz_corr = 0; 1904 1905 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1906 val = le16toh(val); 1907 if ((val & 0xff) != 0xff) 1908 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1909 1910 /* Only [-10, 10] is valid */ 1911 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1912 sc->rssi_5ghz_corr = 0; 1913 1914 if (sc->ext_2ghz_lna) 1915 sc->rssi_2ghz_corr -= 14; 1916 if (sc->ext_5ghz_lna) 1917 sc->rssi_5ghz_corr -= 14; 1918 1919 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1920 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1921 1922 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1923 val = le16toh(val); 1924 if ((val & 0xff) != 0xff) 1925 sc->rffreq = val & 0xff; 1926 1927 DPRINTF("RF freq=%d\n", sc->rffreq); 1928 1929 /* read Tx power for all a/b/g channels */ 1930 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1931 /* XXX default Tx power for 802.11a channels */ 1932 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1933#ifdef RUM_DEBUG 1934 for (i = 0; i < 14; i++) 1935 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1936#endif 1937 1938 /* read default values for BBP registers */ 1939 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1940#ifdef RUM_DEBUG 1941 for (i = 0; i < 14; i++) { 1942 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1943 continue; 1944 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1945 sc->bbp_prom[i].val); 1946 } 1947#endif 1948} 1949 1950static int 1951rum_bbp_init(struct rum_softc *sc) 1952{ 1953 int i, ntries; 1954 1955 /* wait for BBP to be ready */ 1956 for (ntries = 0; ntries < 100; ntries++) { 1957 const uint8_t val = rum_bbp_read(sc, 0); 1958 if (val != 0 && val != 0xff) 1959 break; 1960 if (rum_pause(sc, hz / 100)) 1961 break; 1962 } 1963 if (ntries == 100) { 1964 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1965 return EIO; 1966 } 1967 1968 /* initialize BBP registers to default values */ 1969 for (i = 0; i < N(rum_def_bbp); i++) 1970 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1971 1972 /* write vendor-specific BBP values (from EEPROM) */ 1973 for (i = 0; i < 16; i++) { 1974 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1975 continue; 1976 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1977 } 1978 1979 return 0; 1980} 1981 1982static void 1983rum_init(struct rum_softc *sc) 1984{ 1985 struct ieee80211com *ic = &sc->sc_ic; 1986 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1987 uint32_t tmp; 1988 usb_error_t error; 1989 int i, ntries; 1990 1991 RUM_LOCK_ASSERT(sc, MA_OWNED); 1992 1993 rum_stop(sc); 1994 1995 /* initialize MAC registers to default values */ 1996 for (i = 0; i < N(rum_def_mac); i++) 1997 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1998 1999 /* set host ready */ 2000 rum_write(sc, RT2573_MAC_CSR1, 3); 2001 rum_write(sc, RT2573_MAC_CSR1, 0); 2002 2003 /* wait for BBP/RF to wakeup */ 2004 for (ntries = 0; ntries < 100; ntries++) { 2005 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2006 break; 2007 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2008 if (rum_pause(sc, hz / 100)) 2009 break; 2010 } 2011 if (ntries == 100) { 2012 device_printf(sc->sc_dev, 2013 "timeout waiting for BBP/RF to wakeup\n"); 2014 goto fail; 2015 } 2016 2017 if ((error = rum_bbp_init(sc)) != 0) 2018 goto fail; 2019 2020 /* select default channel */ 2021 rum_select_band(sc, ic->ic_curchan); 2022 rum_select_antenna(sc); 2023 rum_set_chan(sc, ic->ic_curchan); 2024 2025 /* clear STA registers */ 2026 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2027 2028 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2029 2030 /* initialize ASIC */ 2031 rum_write(sc, RT2573_MAC_CSR1, 4); 2032 2033 /* 2034 * Allocate Tx and Rx xfer queues. 2035 */ 2036 rum_setup_tx_list(sc); 2037 2038 /* update Rx filter */ 2039 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2040 2041 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2042 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2043 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2044 RT2573_DROP_ACKCTS; 2045 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2046 tmp |= RT2573_DROP_TODS; 2047 if (ic->ic_promisc == 0) 2048 tmp |= RT2573_DROP_NOT_TO_ME; 2049 } 2050 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2051 2052 sc->sc_running = 1; 2053 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2054 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2055 return; 2056 2057fail: rum_stop(sc); 2058#undef N 2059} 2060 2061static void 2062rum_stop(struct rum_softc *sc) 2063{ 2064 2065 RUM_LOCK_ASSERT(sc, MA_OWNED); 2066 2067 sc->sc_running = 0; 2068 2069 RUM_UNLOCK(sc); 2070 2071 /* 2072 * Drain the USB transfers, if not already drained: 2073 */ 2074 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2075 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2076 2077 RUM_LOCK(sc); 2078 2079 rum_unsetup_tx_list(sc); 2080 2081 /* disable Rx */ 2082 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2083 2084 /* reset ASIC */ 2085 rum_write(sc, RT2573_MAC_CSR1, 3); 2086 rum_write(sc, RT2573_MAC_CSR1, 0); 2087} 2088 2089static void 2090rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2091{ 2092 struct usb_device_request req; 2093 uint16_t reg = RT2573_MCU_CODE_BASE; 2094 usb_error_t err; 2095 2096 /* copy firmware image into NIC */ 2097 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2098 err = rum_write(sc, reg, UGETDW(ucode)); 2099 if (err) { 2100 /* firmware already loaded ? */ 2101 device_printf(sc->sc_dev, "Firmware load " 2102 "failure! (ignored)\n"); 2103 break; 2104 } 2105 } 2106 2107 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2108 req.bRequest = RT2573_MCU_CNTL; 2109 USETW(req.wValue, RT2573_MCU_RUN); 2110 USETW(req.wIndex, 0); 2111 USETW(req.wLength, 0); 2112 2113 err = rum_do_request(sc, &req, NULL); 2114 if (err != 0) { 2115 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2116 usbd_errstr(err)); 2117 } 2118 2119 /* give the chip some time to boot */ 2120 rum_pause(sc, hz / 8); 2121} 2122 2123static void 2124rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2125{ 2126 struct ieee80211com *ic = vap->iv_ic; 2127 const struct ieee80211_txparam *tp; 2128 struct rum_tx_desc desc; 2129 struct mbuf *m0; 2130 2131 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2132 return; 2133 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2134 return; 2135 2136 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2137 if (m0 == NULL) 2138 return; 2139 2140 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2141 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2142 m0->m_pkthdr.len, tp->mgmtrate); 2143 2144 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2145 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2146 2147 /* copy beacon header and payload into NIC memory */ 2148 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2149 m0->m_pkthdr.len); 2150 2151 m_freem(m0); 2152} 2153 2154static int 2155rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2156 const struct ieee80211_bpf_params *params) 2157{ 2158 struct rum_softc *sc = ni->ni_ic->ic_softc; 2159 2160 RUM_LOCK(sc); 2161 /* prevent management frames from being sent if we're not ready */ 2162 if (!sc->sc_running) { 2163 RUM_UNLOCK(sc); 2164 m_freem(m); 2165 ieee80211_free_node(ni); 2166 return ENETDOWN; 2167 } 2168 if (sc->tx_nfree < RUM_TX_MINFREE) { 2169 RUM_UNLOCK(sc); 2170 m_freem(m); 2171 ieee80211_free_node(ni); 2172 return EIO; 2173 } 2174 2175 if (params == NULL) { 2176 /* 2177 * Legacy path; interpret frame contents to decide 2178 * precisely how to send the frame. 2179 */ 2180 if (rum_tx_mgt(sc, m, ni) != 0) 2181 goto bad; 2182 } else { 2183 /* 2184 * Caller supplied explicit parameters to use in 2185 * sending the frame. 2186 */ 2187 if (rum_tx_raw(sc, m, ni, params) != 0) 2188 goto bad; 2189 } 2190 RUM_UNLOCK(sc); 2191 2192 return 0; 2193bad: 2194 RUM_UNLOCK(sc); 2195 ieee80211_free_node(ni); 2196 return EIO; 2197} 2198 2199static void 2200rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2201{ 2202 struct ieee80211vap *vap = ni->ni_vap; 2203 struct rum_vap *rvp = RUM_VAP(vap); 2204 2205 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2206 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2207 2208 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2209} 2210 2211static void 2212rum_ratectl_timeout(void *arg) 2213{ 2214 struct rum_vap *rvp = arg; 2215 struct ieee80211vap *vap = &rvp->vap; 2216 struct ieee80211com *ic = vap->iv_ic; 2217 2218 ieee80211_runtask(ic, &rvp->ratectl_task); 2219} 2220 2221static void 2222rum_ratectl_task(void *arg, int pending) 2223{ 2224 struct rum_vap *rvp = arg; 2225 struct ieee80211vap *vap = &rvp->vap; 2226 struct ieee80211com *ic = vap->iv_ic; 2227 struct rum_softc *sc = ic->ic_softc; 2228 struct ieee80211_node *ni; 2229 int ok, fail; 2230 int sum, retrycnt; 2231 2232 RUM_LOCK(sc); 2233 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2234 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2235 2236 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2237 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2238 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2239 sum = ok+fail; 2240 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2241 2242 ni = ieee80211_ref_node(vap->iv_bss); 2243 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2244 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2245 ieee80211_free_node(ni); 2246 2247 /* count TX retry-fail as Tx errors */ 2248 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2249 2250 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2251 RUM_UNLOCK(sc); 2252} 2253 2254static void 2255rum_scan_start(struct ieee80211com *ic) 2256{ 2257 struct rum_softc *sc = ic->ic_softc; 2258 2259 RUM_LOCK(sc); 2260 rum_abort_tsf_sync(sc); 2261 rum_set_bssid(sc, ieee80211broadcastaddr); 2262 RUM_UNLOCK(sc); 2263 2264} 2265 2266static void 2267rum_scan_end(struct ieee80211com *ic) 2268{ 2269 struct rum_softc *sc = ic->ic_softc; 2270 2271 RUM_LOCK(sc); 2272 rum_enable_tsf_sync(sc); 2273 rum_set_bssid(sc, ic->ic_macaddr); 2274 RUM_UNLOCK(sc); 2275 2276} 2277 2278static void 2279rum_set_channel(struct ieee80211com *ic) 2280{ 2281 struct rum_softc *sc = ic->ic_softc; 2282 2283 RUM_LOCK(sc); 2284 rum_set_chan(sc, ic->ic_curchan); 2285 RUM_UNLOCK(sc); 2286} 2287 2288static int 2289rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2290{ 2291 struct ieee80211com *ic = &sc->sc_ic; 2292 int lna, agc, rssi; 2293 2294 lna = (raw >> 5) & 0x3; 2295 agc = raw & 0x1f; 2296 2297 if (lna == 0) { 2298 /* 2299 * No RSSI mapping 2300 * 2301 * NB: Since RSSI is relative to noise floor, -1 is 2302 * adequate for caller to know error happened. 2303 */ 2304 return -1; 2305 } 2306 2307 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2308 2309 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2310 rssi += sc->rssi_2ghz_corr; 2311 2312 if (lna == 1) 2313 rssi -= 64; 2314 else if (lna == 2) 2315 rssi -= 74; 2316 else if (lna == 3) 2317 rssi -= 90; 2318 } else { 2319 rssi += sc->rssi_5ghz_corr; 2320 2321 if (!sc->ext_5ghz_lna && lna != 1) 2322 rssi += 4; 2323 2324 if (lna == 1) 2325 rssi -= 64; 2326 else if (lna == 2) 2327 rssi -= 86; 2328 else if (lna == 3) 2329 rssi -= 100; 2330 } 2331 return rssi; 2332} 2333 2334static int 2335rum_pause(struct rum_softc *sc, int timeout) 2336{ 2337 2338 usb_pause_mtx(&sc->sc_mtx, timeout); 2339 return (0); 2340} 2341 2342static device_method_t rum_methods[] = { 2343 /* Device interface */ 2344 DEVMETHOD(device_probe, rum_match), 2345 DEVMETHOD(device_attach, rum_attach), 2346 DEVMETHOD(device_detach, rum_detach), 2347 DEVMETHOD_END 2348}; 2349 2350static driver_t rum_driver = { 2351 .name = "rum", 2352 .methods = rum_methods, 2353 .size = sizeof(struct rum_softc), 2354}; 2355 2356static devclass_t rum_devclass; 2357 2358DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2359MODULE_DEPEND(rum, wlan, 1, 1, 1); 2360MODULE_DEPEND(rum, usb, 1, 1, 1); 2361MODULE_VERSION(rum, 1); 2362