if_rum.c revision 288639
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288639 2015-10-03 22:26:59Z 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 288639 2015-10-03 22:26:59Z 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 89static const STRUCT_USB_HOST_ID rum_devs[] = { 90#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 91 RUM_DEV(ABOCOM, HWU54DM), 92 RUM_DEV(ABOCOM, RT2573_2), 93 RUM_DEV(ABOCOM, RT2573_3), 94 RUM_DEV(ABOCOM, RT2573_4), 95 RUM_DEV(ABOCOM, WUG2700), 96 RUM_DEV(AMIT, CGWLUSB2GO), 97 RUM_DEV(ASUS, RT2573_1), 98 RUM_DEV(ASUS, RT2573_2), 99 RUM_DEV(BELKIN, F5D7050A), 100 RUM_DEV(BELKIN, F5D9050V3), 101 RUM_DEV(CISCOLINKSYS, WUSB54GC), 102 RUM_DEV(CISCOLINKSYS, WUSB54GR), 103 RUM_DEV(CONCEPTRONIC2, C54RU2), 104 RUM_DEV(COREGA, CGWLUSB2GL), 105 RUM_DEV(COREGA, CGWLUSB2GPX), 106 RUM_DEV(DICKSMITH, CWD854F), 107 RUM_DEV(DICKSMITH, RT2573), 108 RUM_DEV(EDIMAX, EW7318USG), 109 RUM_DEV(DLINK2, DWLG122C1), 110 RUM_DEV(DLINK2, WUA1340), 111 RUM_DEV(DLINK2, DWA111), 112 RUM_DEV(DLINK2, DWA110), 113 RUM_DEV(GIGABYTE, GNWB01GS), 114 RUM_DEV(GIGABYTE, GNWI05GS), 115 RUM_DEV(GIGASET, RT2573), 116 RUM_DEV(GOODWAY, RT2573), 117 RUM_DEV(GUILLEMOT, HWGUSB254LB), 118 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 119 RUM_DEV(HUAWEI3COM, WUB320G), 120 RUM_DEV(MELCO, G54HP), 121 RUM_DEV(MELCO, SG54HP), 122 RUM_DEV(MELCO, SG54HG), 123 RUM_DEV(MELCO, WLIUCG), 124 RUM_DEV(MELCO, WLRUCG), 125 RUM_DEV(MELCO, WLRUCGAOSS), 126 RUM_DEV(MSI, RT2573_1), 127 RUM_DEV(MSI, RT2573_2), 128 RUM_DEV(MSI, RT2573_3), 129 RUM_DEV(MSI, RT2573_4), 130 RUM_DEV(NOVATECH, RT2573), 131 RUM_DEV(PLANEX2, GWUS54HP), 132 RUM_DEV(PLANEX2, GWUS54MINI2), 133 RUM_DEV(PLANEX2, GWUSMM), 134 RUM_DEV(QCOM, RT2573), 135 RUM_DEV(QCOM, RT2573_2), 136 RUM_DEV(QCOM, RT2573_3), 137 RUM_DEV(RALINK, RT2573), 138 RUM_DEV(RALINK, RT2573_2), 139 RUM_DEV(RALINK, RT2671), 140 RUM_DEV(SITECOMEU, WL113R2), 141 RUM_DEV(SITECOMEU, WL172), 142 RUM_DEV(SPARKLAN, RT2573), 143 RUM_DEV(SURECOM, RT2573), 144#undef RUM_DEV 145}; 146 147static device_probe_t rum_match; 148static device_attach_t rum_attach; 149static device_detach_t rum_detach; 150 151static usb_callback_t rum_bulk_read_callback; 152static usb_callback_t rum_bulk_write_callback; 153 154static usb_error_t rum_do_request(struct rum_softc *sc, 155 struct usb_device_request *req, void *data); 156static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 157 const char [IFNAMSIZ], int, enum ieee80211_opmode, 158 int, const uint8_t [IEEE80211_ADDR_LEN], 159 const uint8_t [IEEE80211_ADDR_LEN]); 160static void rum_vap_delete(struct ieee80211vap *); 161static void rum_cmdq_cb(void *, int); 162static int rum_cmd_sleepable(struct rum_softc *, const void *, 163 size_t, uint8_t, CMD_FUNC_PROTO); 164static void rum_tx_free(struct rum_tx_data *, int); 165static void rum_setup_tx_list(struct rum_softc *); 166static void rum_unsetup_tx_list(struct rum_softc *); 167static int rum_newstate(struct ieee80211vap *, 168 enum ieee80211_state, int); 169static uint8_t rum_crypto_mode(struct rum_softc *, u_int, int); 170static void rum_setup_tx_desc(struct rum_softc *, 171 struct rum_tx_desc *, struct ieee80211_key *, 172 uint32_t, uint8_t, int, int, int); 173static uint32_t rum_tx_crypto_flags(struct rum_softc *, 174 struct ieee80211_node *, 175 const struct ieee80211_key *); 176static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 177 struct ieee80211_node *); 178static int rum_tx_raw(struct rum_softc *, struct mbuf *, 179 struct ieee80211_node *, 180 const struct ieee80211_bpf_params *); 181static int rum_tx_data(struct rum_softc *, struct mbuf *, 182 struct ieee80211_node *); 183static int rum_transmit(struct ieee80211com *, struct mbuf *); 184static void rum_start(struct rum_softc *); 185static void rum_parent(struct ieee80211com *); 186static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 187 int); 188static uint32_t rum_read(struct rum_softc *, uint16_t); 189static void rum_read_multi(struct rum_softc *, uint16_t, void *, 190 int); 191static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 192static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 193 size_t); 194static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 195static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 196static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 197 uint32_t); 198static int rum_bbp_busy(struct rum_softc *); 199static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 200static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 201static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 202static void rum_select_antenna(struct rum_softc *); 203static void rum_enable_mrr(struct rum_softc *); 204static void rum_set_txpreamble(struct rum_softc *); 205static void rum_set_basicrates(struct rum_softc *); 206static void rum_select_band(struct rum_softc *, 207 struct ieee80211_channel *); 208static void rum_set_chan(struct rum_softc *, 209 struct ieee80211_channel *); 210static void rum_set_maxretry(struct rum_softc *, 211 struct ieee80211vap *); 212static int rum_enable_tsf_sync(struct rum_softc *); 213static void rum_enable_tsf(struct rum_softc *); 214static void rum_abort_tsf_sync(struct rum_softc *); 215static void rum_get_tsf(struct rum_softc *, uint64_t *); 216static void rum_update_slot_cb(struct rum_softc *, 217 union sec_param *, uint8_t); 218static void rum_update_slot(struct ieee80211com *); 219static void rum_set_bssid(struct rum_softc *, const uint8_t *); 220static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 221static void rum_update_mcast(struct ieee80211com *); 222static void rum_update_promisc(struct ieee80211com *); 223static void rum_setpromisc(struct rum_softc *); 224static const char *rum_get_rf(int); 225static void rum_read_eeprom(struct rum_softc *); 226static int rum_bbp_wakeup(struct rum_softc *); 227static int rum_bbp_init(struct rum_softc *); 228static void rum_clr_shkey_regs(struct rum_softc *); 229static int rum_init(struct rum_softc *); 230static void rum_stop(struct rum_softc *); 231static void rum_load_microcode(struct rum_softc *, const uint8_t *, 232 size_t); 233static int rum_set_beacon(struct rum_softc *, 234 struct ieee80211vap *); 235static int rum_alloc_beacon(struct rum_softc *, 236 struct ieee80211vap *); 237static void rum_update_beacon_cb(struct rum_softc *, 238 union sec_param *, uint8_t); 239static void rum_update_beacon(struct ieee80211vap *, int); 240static int rum_common_key_set(struct rum_softc *, 241 struct ieee80211_key *, uint16_t); 242static void rum_group_key_set_cb(struct rum_softc *, 243 union sec_param *, uint8_t); 244static void rum_group_key_del_cb(struct rum_softc *, 245 union sec_param *, uint8_t); 246static void rum_pair_key_set_cb(struct rum_softc *, 247 union sec_param *, uint8_t); 248static void rum_pair_key_del_cb(struct rum_softc *, 249 union sec_param *, uint8_t); 250static int rum_key_alloc(struct ieee80211vap *, 251 struct ieee80211_key *, ieee80211_keyix *, 252 ieee80211_keyix *); 253static int rum_key_set(struct ieee80211vap *, 254 const struct ieee80211_key *); 255static int rum_key_delete(struct ieee80211vap *, 256 const struct ieee80211_key *); 257static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 258 const struct ieee80211_bpf_params *); 259static void rum_scan_start(struct ieee80211com *); 260static void rum_scan_end(struct ieee80211com *); 261static void rum_set_channel(struct ieee80211com *); 262static int rum_get_rssi(struct rum_softc *, uint8_t); 263static void rum_ratectl_start(struct rum_softc *, 264 struct ieee80211_node *); 265static void rum_ratectl_timeout(void *); 266static void rum_ratectl_task(void *, int); 267static int rum_pause(struct rum_softc *, int); 268 269static const struct { 270 uint32_t reg; 271 uint32_t val; 272} rum_def_mac[] = { 273 { RT2573_TXRX_CSR0, 0x025fb032 }, 274 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 275 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 276 { RT2573_TXRX_CSR3, 0x00858687 }, 277 { RT2573_TXRX_CSR7, 0x2e31353b }, 278 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 279 { RT2573_TXRX_CSR15, 0x0000000f }, 280 { RT2573_MAC_CSR6, 0x00000fff }, 281 { RT2573_MAC_CSR8, 0x016c030a }, 282 { RT2573_MAC_CSR10, 0x00000718 }, 283 { RT2573_MAC_CSR12, 0x00000004 }, 284 { RT2573_MAC_CSR13, 0x00007f00 }, 285 { RT2573_SEC_CSR2, 0x00000000 }, 286 { RT2573_SEC_CSR3, 0x00000000 }, 287 { RT2573_SEC_CSR4, 0x00000000 }, 288 { RT2573_PHY_CSR1, 0x000023b0 }, 289 { RT2573_PHY_CSR5, 0x00040a06 }, 290 { RT2573_PHY_CSR6, 0x00080606 }, 291 { RT2573_PHY_CSR7, 0x00000408 }, 292 { RT2573_AIFSN_CSR, 0x00002273 }, 293 { RT2573_CWMIN_CSR, 0x00002344 }, 294 { RT2573_CWMAX_CSR, 0x000034aa } 295}; 296 297static const struct { 298 uint8_t reg; 299 uint8_t val; 300} rum_def_bbp[] = { 301 { 3, 0x80 }, 302 { 15, 0x30 }, 303 { 17, 0x20 }, 304 { 21, 0xc8 }, 305 { 22, 0x38 }, 306 { 23, 0x06 }, 307 { 24, 0xfe }, 308 { 25, 0x0a }, 309 { 26, 0x0d }, 310 { 32, 0x0b }, 311 { 34, 0x12 }, 312 { 37, 0x07 }, 313 { 39, 0xf8 }, 314 { 41, 0x60 }, 315 { 53, 0x10 }, 316 { 54, 0x18 }, 317 { 60, 0x10 }, 318 { 61, 0x04 }, 319 { 62, 0x04 }, 320 { 75, 0xfe }, 321 { 86, 0xfe }, 322 { 88, 0xfe }, 323 { 90, 0x0f }, 324 { 99, 0x00 }, 325 { 102, 0x16 }, 326 { 107, 0x04 } 327}; 328 329static const struct rfprog { 330 uint8_t chan; 331 uint32_t r1, r2, r3, r4; 332} rum_rf5226[] = { 333 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 334 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 335 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 336 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 337 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 338 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 339 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 340 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 341 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 342 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 343 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 344 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 345 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 346 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 347 348 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 349 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 350 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 351 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 352 353 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 354 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 355 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 356 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 357 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 358 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 359 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 360 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 361 362 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 363 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 364 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 365 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 366 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 367 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 368 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 369 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 370 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 371 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 372 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 373 374 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 375 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 376 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 377 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 378 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 379}, rum_rf5225[] = { 380 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 381 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 382 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 383 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 384 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 385 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 386 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 387 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 388 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 389 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 390 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 391 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 392 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 393 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 394 395 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 396 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 397 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 398 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 399 400 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 401 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 402 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 403 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 404 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 405 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 406 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 407 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 408 409 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 410 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 411 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 412 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 413 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 414 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 415 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 416 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 417 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 418 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 419 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 420 421 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 422 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 423 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 424 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 425 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 426}; 427 428static const struct usb_config rum_config[RUM_N_TRANSFER] = { 429 [RUM_BULK_WR] = { 430 .type = UE_BULK, 431 .endpoint = UE_ADDR_ANY, 432 .direction = UE_DIR_OUT, 433 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 434 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 435 .callback = rum_bulk_write_callback, 436 .timeout = 5000, /* ms */ 437 }, 438 [RUM_BULK_RD] = { 439 .type = UE_BULK, 440 .endpoint = UE_ADDR_ANY, 441 .direction = UE_DIR_IN, 442 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 443 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 444 .callback = rum_bulk_read_callback, 445 }, 446}; 447 448static int 449rum_match(device_t self) 450{ 451 struct usb_attach_arg *uaa = device_get_ivars(self); 452 453 if (uaa->usb_mode != USB_MODE_HOST) 454 return (ENXIO); 455 if (uaa->info.bConfigIndex != 0) 456 return (ENXIO); 457 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 458 return (ENXIO); 459 460 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 461} 462 463static int 464rum_attach(device_t self) 465{ 466 struct usb_attach_arg *uaa = device_get_ivars(self); 467 struct rum_softc *sc = device_get_softc(self); 468 struct ieee80211com *ic = &sc->sc_ic; 469 uint8_t iface_index, bands; 470 uint32_t tmp; 471 int error, ntries; 472 473 device_set_usb_desc(self); 474 sc->sc_udev = uaa->device; 475 sc->sc_dev = self; 476 477 RUM_LOCK_INIT(sc); 478 RUM_CMDQ_LOCK_INIT(sc); 479 mbufq_init(&sc->sc_snd, ifqmaxlen); 480 481 iface_index = RT2573_IFACE_INDEX; 482 error = usbd_transfer_setup(uaa->device, &iface_index, 483 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 484 if (error) { 485 device_printf(self, "could not allocate USB transfers, " 486 "err=%s\n", usbd_errstr(error)); 487 goto detach; 488 } 489 490 RUM_LOCK(sc); 491 /* retrieve RT2573 rev. no */ 492 for (ntries = 0; ntries < 100; ntries++) { 493 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 494 break; 495 if (rum_pause(sc, hz / 100)) 496 break; 497 } 498 if (ntries == 100) { 499 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 500 RUM_UNLOCK(sc); 501 goto detach; 502 } 503 504 /* retrieve MAC address and various other things from EEPROM */ 505 rum_read_eeprom(sc); 506 507 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 508 tmp, rum_get_rf(sc->rf_rev)); 509 510 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 511 RUM_UNLOCK(sc); 512 513 ic->ic_softc = sc; 514 ic->ic_name = device_get_nameunit(self); 515 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 516 517 /* set device capabilities */ 518 ic->ic_caps = 519 IEEE80211_C_STA /* station mode supported */ 520 | IEEE80211_C_IBSS /* IBSS mode supported */ 521 | IEEE80211_C_MONITOR /* monitor mode supported */ 522 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 523 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 524 | IEEE80211_C_TXPMGT /* tx power management */ 525 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 526 | IEEE80211_C_SHSLOT /* short slot time supported */ 527 | IEEE80211_C_BGSCAN /* bg scanning supported */ 528 | IEEE80211_C_WPA /* 802.11i */ 529 ; 530 531 ic->ic_cryptocaps = 532 IEEE80211_CRYPTO_WEP | 533 IEEE80211_CRYPTO_AES_CCM | 534 IEEE80211_CRYPTO_TKIPMIC | 535 IEEE80211_CRYPTO_TKIP; 536 537 bands = 0; 538 setbit(&bands, IEEE80211_MODE_11B); 539 setbit(&bands, IEEE80211_MODE_11G); 540 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 541 setbit(&bands, IEEE80211_MODE_11A); 542 ieee80211_init_channels(ic, NULL, &bands); 543 544 ieee80211_ifattach(ic); 545 ic->ic_update_promisc = rum_update_promisc; 546 ic->ic_raw_xmit = rum_raw_xmit; 547 ic->ic_scan_start = rum_scan_start; 548 ic->ic_scan_end = rum_scan_end; 549 ic->ic_set_channel = rum_set_channel; 550 ic->ic_transmit = rum_transmit; 551 ic->ic_parent = rum_parent; 552 ic->ic_vap_create = rum_vap_create; 553 ic->ic_vap_delete = rum_vap_delete; 554 ic->ic_updateslot = rum_update_slot; 555 ic->ic_update_mcast = rum_update_mcast; 556 557 ieee80211_radiotap_attach(ic, 558 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 559 RT2573_TX_RADIOTAP_PRESENT, 560 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 561 RT2573_RX_RADIOTAP_PRESENT); 562 563 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 564 565 if (bootverbose) 566 ieee80211_announce(ic); 567 568 return (0); 569 570detach: 571 rum_detach(self); 572 return (ENXIO); /* failure */ 573} 574 575static int 576rum_detach(device_t self) 577{ 578 struct rum_softc *sc = device_get_softc(self); 579 struct ieee80211com *ic = &sc->sc_ic; 580 581 /* Prevent further ioctls */ 582 RUM_LOCK(sc); 583 sc->sc_detached = 1; 584 RUM_UNLOCK(sc); 585 586 /* stop all USB transfers */ 587 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 588 589 /* free TX list, if any */ 590 RUM_LOCK(sc); 591 rum_unsetup_tx_list(sc); 592 RUM_UNLOCK(sc); 593 594 if (ic->ic_softc == sc) { 595 ieee80211_draintask(ic, &sc->cmdq_task); 596 ieee80211_ifdetach(ic); 597 } 598 599 mbufq_drain(&sc->sc_snd); 600 RUM_CMDQ_LOCK_DESTROY(sc); 601 RUM_LOCK_DESTROY(sc); 602 603 return (0); 604} 605 606static usb_error_t 607rum_do_request(struct rum_softc *sc, 608 struct usb_device_request *req, void *data) 609{ 610 usb_error_t err; 611 int ntries = 10; 612 613 while (ntries--) { 614 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 615 req, data, 0, NULL, 250 /* ms */); 616 if (err == 0) 617 break; 618 619 DPRINTFN(1, "Control request failed, %s (retrying)\n", 620 usbd_errstr(err)); 621 if (rum_pause(sc, hz / 100)) 622 break; 623 } 624 return (err); 625} 626 627static struct ieee80211vap * 628rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 629 enum ieee80211_opmode opmode, int flags, 630 const uint8_t bssid[IEEE80211_ADDR_LEN], 631 const uint8_t mac[IEEE80211_ADDR_LEN]) 632{ 633 struct rum_softc *sc = ic->ic_softc; 634 struct rum_vap *rvp; 635 struct ieee80211vap *vap; 636 637 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 638 return NULL; 639 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 640 vap = &rvp->vap; 641 /* enable s/w bmiss handling for sta mode */ 642 643 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 644 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 645 /* out of memory */ 646 free(rvp, M_80211_VAP); 647 return (NULL); 648 } 649 650 /* override state transition machine */ 651 rvp->newstate = vap->iv_newstate; 652 vap->iv_newstate = rum_newstate; 653 vap->iv_key_alloc = rum_key_alloc; 654 vap->iv_key_set = rum_key_set; 655 vap->iv_key_delete = rum_key_delete; 656 vap->iv_update_beacon = rum_update_beacon; 657 vap->iv_max_aid = RT2573_ADDR_MAX; 658 659 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 660 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 661 ieee80211_ratectl_init(vap); 662 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 663 /* complete setup */ 664 ieee80211_vap_attach(vap, ieee80211_media_change, 665 ieee80211_media_status, mac); 666 ic->ic_opmode = opmode; 667 return vap; 668} 669 670static void 671rum_vap_delete(struct ieee80211vap *vap) 672{ 673 struct rum_vap *rvp = RUM_VAP(vap); 674 struct ieee80211com *ic = vap->iv_ic; 675 676 m_freem(rvp->bcn_mbuf); 677 usb_callout_drain(&rvp->ratectl_ch); 678 ieee80211_draintask(ic, &rvp->ratectl_task); 679 ieee80211_ratectl_deinit(vap); 680 ieee80211_vap_detach(vap); 681 free(rvp, M_80211_VAP); 682} 683 684static void 685rum_cmdq_cb(void *arg, int pending) 686{ 687 struct rum_softc *sc = arg; 688 struct rum_cmdq *rc; 689 690 RUM_CMDQ_LOCK(sc); 691 while (sc->cmdq[sc->cmdq_first].func != NULL) { 692 rc = &sc->cmdq[sc->cmdq_first]; 693 RUM_CMDQ_UNLOCK(sc); 694 695 RUM_LOCK(sc); 696 rc->func(sc, &rc->data, rc->rvp_id); 697 RUM_UNLOCK(sc); 698 699 RUM_CMDQ_LOCK(sc); 700 memset(rc, 0, sizeof (*rc)); 701 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 702 } 703 RUM_CMDQ_UNLOCK(sc); 704} 705 706static int 707rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 708 uint8_t rvp_id, CMD_FUNC_PROTO) 709{ 710 struct ieee80211com *ic = &sc->sc_ic; 711 712 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 713 714 RUM_CMDQ_LOCK(sc); 715 if (sc->cmdq[sc->cmdq_last].func != NULL) { 716 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 717 RUM_CMDQ_UNLOCK(sc); 718 719 return EAGAIN; 720 } 721 722 if (ptr != NULL) 723 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 724 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 725 sc->cmdq[sc->cmdq_last].func = func; 726 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 727 RUM_CMDQ_UNLOCK(sc); 728 729 ieee80211_runtask(ic, &sc->cmdq_task); 730 731 return 0; 732} 733 734static void 735rum_tx_free(struct rum_tx_data *data, int txerr) 736{ 737 struct rum_softc *sc = data->sc; 738 739 if (data->m != NULL) { 740 ieee80211_tx_complete(data->ni, data->m, txerr); 741 data->m = NULL; 742 data->ni = NULL; 743 } 744 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 745 sc->tx_nfree++; 746} 747 748static void 749rum_setup_tx_list(struct rum_softc *sc) 750{ 751 struct rum_tx_data *data; 752 int i; 753 754 sc->tx_nfree = 0; 755 STAILQ_INIT(&sc->tx_q); 756 STAILQ_INIT(&sc->tx_free); 757 758 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 759 data = &sc->tx_data[i]; 760 761 data->sc = sc; 762 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 763 sc->tx_nfree++; 764 } 765} 766 767static void 768rum_unsetup_tx_list(struct rum_softc *sc) 769{ 770 struct rum_tx_data *data; 771 int i; 772 773 /* make sure any subsequent use of the queues will fail */ 774 sc->tx_nfree = 0; 775 STAILQ_INIT(&sc->tx_q); 776 STAILQ_INIT(&sc->tx_free); 777 778 /* free up all node references and mbufs */ 779 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 780 data = &sc->tx_data[i]; 781 782 if (data->m != NULL) { 783 m_freem(data->m); 784 data->m = NULL; 785 } 786 if (data->ni != NULL) { 787 ieee80211_free_node(data->ni); 788 data->ni = NULL; 789 } 790 } 791} 792 793static int 794rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 795{ 796 struct rum_vap *rvp = RUM_VAP(vap); 797 struct ieee80211com *ic = vap->iv_ic; 798 struct rum_softc *sc = ic->ic_softc; 799 const struct ieee80211_txparam *tp; 800 enum ieee80211_state ostate; 801 struct ieee80211_node *ni; 802 int ret; 803 804 ostate = vap->iv_state; 805 DPRINTF("%s -> %s\n", 806 ieee80211_state_name[ostate], 807 ieee80211_state_name[nstate]); 808 809 IEEE80211_UNLOCK(ic); 810 RUM_LOCK(sc); 811 usb_callout_stop(&rvp->ratectl_ch); 812 813 switch (nstate) { 814 case IEEE80211_S_INIT: 815 if (ostate == IEEE80211_S_RUN) 816 rum_abort_tsf_sync(sc); 817 818 break; 819 820 case IEEE80211_S_RUN: 821 ni = ieee80211_ref_node(vap->iv_bss); 822 823 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 824 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC || 825 ni->ni_chan == IEEE80211_CHAN_ANYC) { 826 ret = EINVAL; 827 goto run_fail; 828 } 829 rum_update_slot_cb(sc, NULL, 0); 830 rum_enable_mrr(sc); 831 rum_set_txpreamble(sc); 832 rum_set_basicrates(sc); 833 rum_set_maxretry(sc, vap); 834 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 835 rum_set_bssid(sc, sc->sc_bssid); 836 } 837 838 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 839 vap->iv_opmode == IEEE80211_M_IBSS) { 840 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 841 goto run_fail; 842 } 843 844 if (vap->iv_opmode != IEEE80211_M_MONITOR && 845 vap->iv_opmode != IEEE80211_M_AHDEMO) { 846 if ((ret = rum_enable_tsf_sync(sc)) != 0) 847 goto run_fail; 848 } else 849 rum_enable_tsf(sc); 850 851 /* enable automatic rate adaptation */ 852 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 853 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 854 rum_ratectl_start(sc, ni); 855 ieee80211_free_node(ni); 856 break; 857 default: 858 break; 859 } 860 RUM_UNLOCK(sc); 861 IEEE80211_LOCK(ic); 862 return (rvp->newstate(vap, nstate, arg)); 863 864run_fail: 865 RUM_UNLOCK(sc); 866 IEEE80211_LOCK(ic); 867 ieee80211_free_node(ni); 868 return ret; 869} 870 871static void 872rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 873{ 874 struct rum_softc *sc = usbd_xfer_softc(xfer); 875 struct ieee80211vap *vap; 876 struct rum_tx_data *data; 877 struct mbuf *m; 878 struct usb_page_cache *pc; 879 unsigned int len; 880 int actlen, sumlen; 881 882 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 883 884 switch (USB_GET_STATE(xfer)) { 885 case USB_ST_TRANSFERRED: 886 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 887 888 /* free resources */ 889 data = usbd_xfer_get_priv(xfer); 890 rum_tx_free(data, 0); 891 usbd_xfer_set_priv(xfer, NULL); 892 893 /* FALLTHROUGH */ 894 case USB_ST_SETUP: 895tr_setup: 896 data = STAILQ_FIRST(&sc->tx_q); 897 if (data) { 898 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 899 m = data->m; 900 901 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 902 DPRINTFN(0, "data overflow, %u bytes\n", 903 m->m_pkthdr.len); 904 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 905 } 906 pc = usbd_xfer_get_frame(xfer, 0); 907 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 908 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 909 m->m_pkthdr.len); 910 911 vap = data->ni->ni_vap; 912 if (ieee80211_radiotap_active_vap(vap)) { 913 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 914 915 tap->wt_flags = 0; 916 tap->wt_rate = data->rate; 917 rum_get_tsf(sc, &tap->wt_tsf); 918 tap->wt_antenna = sc->tx_ant; 919 920 ieee80211_radiotap_tx(vap, m); 921 } 922 923 /* align end on a 4-bytes boundary */ 924 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 925 if ((len % 64) == 0) 926 len += 4; 927 928 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 929 m->m_pkthdr.len, len); 930 931 usbd_xfer_set_frame_len(xfer, 0, len); 932 usbd_xfer_set_priv(xfer, data); 933 934 usbd_transfer_submit(xfer); 935 } 936 rum_start(sc); 937 break; 938 939 default: /* Error */ 940 DPRINTFN(11, "transfer error, %s\n", 941 usbd_errstr(error)); 942 943 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 944 data = usbd_xfer_get_priv(xfer); 945 if (data != NULL) { 946 rum_tx_free(data, error); 947 usbd_xfer_set_priv(xfer, NULL); 948 } 949 950 if (error != USB_ERR_CANCELLED) { 951 if (error == USB_ERR_TIMEOUT) 952 device_printf(sc->sc_dev, "device timeout\n"); 953 954 /* 955 * Try to clear stall first, also if other 956 * errors occur, hence clearing stall 957 * introduces a 50 ms delay: 958 */ 959 usbd_xfer_set_stall(xfer); 960 goto tr_setup; 961 } 962 break; 963 } 964} 965 966static void 967rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 968{ 969 struct rum_softc *sc = usbd_xfer_softc(xfer); 970 struct ieee80211com *ic = &sc->sc_ic; 971 struct ieee80211_frame_min *wh; 972 struct ieee80211_node *ni; 973 struct mbuf *m = NULL; 974 struct usb_page_cache *pc; 975 uint32_t flags; 976 uint8_t rssi = 0; 977 int len; 978 979 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 980 981 switch (USB_GET_STATE(xfer)) { 982 case USB_ST_TRANSFERRED: 983 984 DPRINTFN(15, "rx done, actlen=%d\n", len); 985 986 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 987 DPRINTF("%s: xfer too short %d\n", 988 device_get_nameunit(sc->sc_dev), len); 989 counter_u64_add(ic->ic_ierrors, 1); 990 goto tr_setup; 991 } 992 993 len -= RT2573_RX_DESC_SIZE; 994 pc = usbd_xfer_get_frame(xfer, 0); 995 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 996 997 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 998 flags = le32toh(sc->sc_rx_desc.flags); 999 if (flags & RT2573_RX_CRC_ERROR) { 1000 /* 1001 * This should not happen since we did not 1002 * request to receive those frames when we 1003 * filled RUM_TXRX_CSR2: 1004 */ 1005 DPRINTFN(5, "PHY or CRC error\n"); 1006 counter_u64_add(ic->ic_ierrors, 1); 1007 goto tr_setup; 1008 } 1009 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) { 1010 switch (flags & RT2573_RX_DEC_MASK) { 1011 case RT2573_RX_IV_ERROR: 1012 DPRINTFN(5, "IV/EIV error\n"); 1013 break; 1014 case RT2573_RX_MIC_ERROR: 1015 DPRINTFN(5, "MIC error\n"); 1016 break; 1017 case RT2573_RX_KEY_ERROR: 1018 DPRINTFN(5, "Key error\n"); 1019 break; 1020 } 1021 counter_u64_add(ic->ic_ierrors, 1); 1022 goto tr_setup; 1023 } 1024 1025 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1026 if (m == NULL) { 1027 DPRINTF("could not allocate mbuf\n"); 1028 counter_u64_add(ic->ic_ierrors, 1); 1029 goto tr_setup; 1030 } 1031 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 1032 mtod(m, uint8_t *), len); 1033 1034 wh = mtod(m, struct ieee80211_frame_min *); 1035 1036 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1037 (flags & RT2573_RX_CIP_MASK) != 1038 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) { 1039 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 1040 m->m_flags |= M_WEP; 1041 } 1042 1043 /* finalize mbuf */ 1044 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 1045 1046 if (ieee80211_radiotap_active(ic)) { 1047 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 1048 1049 tap->wr_flags = 0; 1050 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 1051 (flags & RT2573_RX_OFDM) ? 1052 IEEE80211_T_OFDM : IEEE80211_T_CCK); 1053 rum_get_tsf(sc, &tap->wr_tsf); 1054 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 1055 tap->wr_antnoise = RT2573_NOISE_FLOOR; 1056 tap->wr_antenna = sc->rx_ant; 1057 } 1058 /* FALLTHROUGH */ 1059 case USB_ST_SETUP: 1060tr_setup: 1061 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1062 usbd_transfer_submit(xfer); 1063 1064 /* 1065 * At the end of a USB callback it is always safe to unlock 1066 * the private mutex of a device! That is why we do the 1067 * "ieee80211_input" here, and not some lines up! 1068 */ 1069 RUM_UNLOCK(sc); 1070 if (m) { 1071 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1072 ni = ieee80211_find_rxnode(ic, wh); 1073 else 1074 ni = NULL; 1075 1076 if (ni != NULL) { 1077 (void) ieee80211_input(ni, m, rssi, 1078 RT2573_NOISE_FLOOR); 1079 ieee80211_free_node(ni); 1080 } else 1081 (void) ieee80211_input_all(ic, m, rssi, 1082 RT2573_NOISE_FLOOR); 1083 } 1084 RUM_LOCK(sc); 1085 rum_start(sc); 1086 return; 1087 1088 default: /* Error */ 1089 if (error != USB_ERR_CANCELLED) { 1090 /* try to clear stall first */ 1091 usbd_xfer_set_stall(xfer); 1092 goto tr_setup; 1093 } 1094 return; 1095 } 1096} 1097 1098static uint8_t 1099rum_plcp_signal(int rate) 1100{ 1101 switch (rate) { 1102 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1103 case 12: return 0xb; 1104 case 18: return 0xf; 1105 case 24: return 0xa; 1106 case 36: return 0xe; 1107 case 48: return 0x9; 1108 case 72: return 0xd; 1109 case 96: return 0x8; 1110 case 108: return 0xc; 1111 1112 /* CCK rates (NB: not IEEE std, device-specific) */ 1113 case 2: return 0x0; 1114 case 4: return 0x1; 1115 case 11: return 0x2; 1116 case 22: return 0x3; 1117 } 1118 return 0xff; /* XXX unsupported/unknown rate */ 1119} 1120 1121/* 1122 * Map net80211 cipher to RT2573 security mode. 1123 */ 1124static uint8_t 1125rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen) 1126{ 1127 switch (cipher) { 1128 case IEEE80211_CIPHER_WEP: 1129 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104); 1130 case IEEE80211_CIPHER_TKIP: 1131 return RT2573_MODE_TKIP; 1132 case IEEE80211_CIPHER_AES_CCM: 1133 return RT2573_MODE_AES_CCMP; 1134 default: 1135 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1136 return 0; 1137 } 1138} 1139 1140static void 1141rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1142 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, int hdrlen, 1143 int len, int rate) 1144{ 1145 struct ieee80211com *ic = &sc->sc_ic; 1146 uint16_t plcp_length; 1147 int remainder; 1148 1149 flags |= RT2573_TX_VALID; 1150 flags |= len << 16; 1151 1152 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1153 const struct ieee80211_cipher *cip = k->wk_cipher; 1154 1155 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen; 1156 1157 desc->eiv = 0; /* for WEP */ 1158 cip->ic_setiv(k, (uint8_t *)&desc->iv); 1159 } 1160 1161 /* setup PLCP fields */ 1162 desc->plcp_signal = rum_plcp_signal(rate); 1163 desc->plcp_service = 4; 1164 1165 len += IEEE80211_CRC_LEN; 1166 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1167 flags |= RT2573_TX_OFDM; 1168 1169 plcp_length = len & 0xfff; 1170 desc->plcp_length_hi = plcp_length >> 6; 1171 desc->plcp_length_lo = plcp_length & 0x3f; 1172 } else { 1173 if (rate == 0) 1174 rate = 2; /* avoid division by zero */ 1175 plcp_length = (16 * len + rate - 1) / rate; 1176 if (rate == 22) { 1177 remainder = (16 * len) % 22; 1178 if (remainder != 0 && remainder < 7) 1179 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1180 } 1181 desc->plcp_length_hi = plcp_length >> 8; 1182 desc->plcp_length_lo = plcp_length & 0xff; 1183 1184 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1185 desc->plcp_signal |= 0x08; 1186 } 1187 1188 desc->flags = htole32(flags); 1189 desc->hdrlen = hdrlen; 1190 desc->xflags = xflags; 1191 1192 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1193 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1194} 1195 1196static int 1197rum_sendprot(struct rum_softc *sc, 1198 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1199{ 1200 struct ieee80211com *ic = ni->ni_ic; 1201 const struct ieee80211_frame *wh; 1202 struct rum_tx_data *data; 1203 struct mbuf *mprot; 1204 int protrate, pktlen, flags, isshort; 1205 uint16_t dur; 1206 1207 RUM_LOCK_ASSERT(sc); 1208 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1209 ("protection %d", prot)); 1210 1211 wh = mtod(m, const struct ieee80211_frame *); 1212 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1213 1214 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1215 1216 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1217 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1218 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1219 flags = 0; 1220 if (prot == IEEE80211_PROT_RTSCTS) { 1221 /* NB: CTS is the same size as an ACK */ 1222 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1223 flags |= RT2573_TX_NEED_ACK; 1224 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1225 } else { 1226 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1227 } 1228 if (mprot == NULL) { 1229 /* XXX stat + msg */ 1230 return (ENOBUFS); 1231 } 1232 data = STAILQ_FIRST(&sc->tx_free); 1233 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1234 sc->tx_nfree--; 1235 1236 data->m = mprot; 1237 data->ni = ieee80211_ref_node(ni); 1238 data->rate = protrate; 1239 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 1240 mprot->m_pkthdr.len, protrate); 1241 1242 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1243 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1244 1245 return 0; 1246} 1247 1248static uint32_t 1249rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni, 1250 const struct ieee80211_key *k) 1251{ 1252 struct ieee80211vap *vap = ni->ni_vap; 1253 u_int cipher; 1254 uint32_t flags = 0; 1255 uint8_t mode, pos; 1256 1257 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1258 cipher = k->wk_cipher->ic_cipher; 1259 pos = k->wk_keyix; 1260 mode = rum_crypto_mode(sc, cipher, k->wk_keylen); 1261 if (mode == 0) 1262 return 0; 1263 1264 flags |= RT2573_TX_CIP_MODE(mode); 1265 1266 /* Do not trust GROUP flag */ 1267 if (!(k >= &vap->iv_nw_keys[0] && 1268 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) 1269 flags |= RT2573_TX_KEY_PAIR; 1270 else 1271 pos += 0 * RT2573_SKEY_MAX; /* vap id */ 1272 1273 flags |= RT2573_TX_KEY_ID(pos); 1274 1275 if (cipher == IEEE80211_CIPHER_TKIP) 1276 flags |= RT2573_TX_TKIPMIC; 1277 } 1278 1279 return flags; 1280} 1281 1282static int 1283rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1284{ 1285 struct ieee80211vap *vap = ni->ni_vap; 1286 struct ieee80211com *ic = &sc->sc_ic; 1287 struct rum_tx_data *data; 1288 struct ieee80211_frame *wh; 1289 const struct ieee80211_txparam *tp; 1290 struct ieee80211_key *k = NULL; 1291 uint32_t flags = 0; 1292 uint16_t dur; 1293 uint8_t type, xflags = 0; 1294 int hdrlen; 1295 1296 RUM_LOCK_ASSERT(sc); 1297 1298 data = STAILQ_FIRST(&sc->tx_free); 1299 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1300 sc->tx_nfree--; 1301 1302 wh = mtod(m0, struct ieee80211_frame *); 1303 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1304 hdrlen = ieee80211_anyhdrsize(wh); 1305 1306 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1307 k = ieee80211_crypto_get_txkey(ni, m0); 1308 if (k == NULL) 1309 return (ENOENT); 1310 1311 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1312 !k->wk_cipher->ic_encap(k, m0)) 1313 return (ENOBUFS); 1314 1315 wh = mtod(m0, struct ieee80211_frame *); 1316 } 1317 1318 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1319 1320 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1321 flags |= RT2573_TX_NEED_ACK; 1322 1323 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1324 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1325 USETW(wh->i_dur, dur); 1326 1327 /* tell hardware to add timestamp for probe responses */ 1328 if (type == IEEE80211_FC0_TYPE_MGT && 1329 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1330 IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1331 flags |= RT2573_TX_TIMESTAMP; 1332 } 1333 1334 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1335 xflags |= RT2573_TX_HWSEQ; 1336 1337 if (k != NULL) 1338 flags |= rum_tx_crypto_flags(sc, ni, k); 1339 1340 data->m = m0; 1341 data->ni = ni; 1342 data->rate = tp->mgmtrate; 1343 1344 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, hdrlen, 1345 m0->m_pkthdr.len, tp->mgmtrate); 1346 1347 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1348 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1349 1350 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1351 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1352 1353 return (0); 1354} 1355 1356static int 1357rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1358 const struct ieee80211_bpf_params *params) 1359{ 1360 struct ieee80211com *ic = ni->ni_ic; 1361 struct ieee80211_frame *wh; 1362 struct rum_tx_data *data; 1363 uint32_t flags; 1364 uint8_t type, xflags = 0; 1365 int rate, error; 1366 1367 RUM_LOCK_ASSERT(sc); 1368 1369 wh = mtod(m0, struct ieee80211_frame *); 1370 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1371 1372 rate = params->ibp_rate0; 1373 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1374 return (EINVAL); 1375 1376 flags = 0; 1377 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1378 flags |= RT2573_TX_NEED_ACK; 1379 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1380 error = rum_sendprot(sc, m0, ni, 1381 params->ibp_flags & IEEE80211_BPF_RTS ? 1382 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1383 rate); 1384 if (error || sc->tx_nfree == 0) 1385 return (ENOBUFS); 1386 1387 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1388 } 1389 1390 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1391 xflags |= RT2573_TX_HWSEQ; 1392 1393 data = STAILQ_FIRST(&sc->tx_free); 1394 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1395 sc->tx_nfree--; 1396 1397 data->m = m0; 1398 data->ni = ni; 1399 data->rate = rate; 1400 1401 /* XXX need to setup descriptor ourself */ 1402 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, 0, 1403 m0->m_pkthdr.len, rate); 1404 1405 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1406 m0->m_pkthdr.len, rate); 1407 1408 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1409 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1410 1411 return 0; 1412} 1413 1414static int 1415rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1416{ 1417 struct ieee80211vap *vap = ni->ni_vap; 1418 struct ieee80211com *ic = &sc->sc_ic; 1419 struct rum_tx_data *data; 1420 struct ieee80211_frame *wh; 1421 const struct ieee80211_txparam *tp; 1422 struct ieee80211_key *k = NULL; 1423 uint32_t flags = 0; 1424 uint16_t dur; 1425 uint8_t type, xflags = 0; 1426 int error, hdrlen, rate; 1427 1428 RUM_LOCK_ASSERT(sc); 1429 1430 wh = mtod(m0, struct ieee80211_frame *); 1431 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1432 hdrlen = ieee80211_anyhdrsize(wh); 1433 1434 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1435 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1436 rate = tp->mcastrate; 1437 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1438 rate = tp->ucastrate; 1439 else 1440 rate = ni->ni_txrate; 1441 1442 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1443 k = ieee80211_crypto_get_txkey(ni, m0); 1444 if (k == NULL) { 1445 m_freem(m0); 1446 return (ENOENT); 1447 } 1448 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1449 !k->wk_cipher->ic_encap(k, m0)) { 1450 m_freem(m0); 1451 return (ENOBUFS); 1452 } 1453 1454 /* packet header may have moved, reset our local pointer */ 1455 wh = mtod(m0, struct ieee80211_frame *); 1456 } 1457 1458 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1459 xflags |= RT2573_TX_HWSEQ; 1460 1461 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1462 int prot = IEEE80211_PROT_NONE; 1463 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1464 prot = IEEE80211_PROT_RTSCTS; 1465 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1466 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1467 prot = ic->ic_protmode; 1468 if (prot != IEEE80211_PROT_NONE) { 1469 error = rum_sendprot(sc, m0, ni, prot, rate); 1470 if (error || sc->tx_nfree == 0) { 1471 m_freem(m0); 1472 return ENOBUFS; 1473 } 1474 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1475 } 1476 } 1477 1478 if (k != NULL) 1479 flags |= rum_tx_crypto_flags(sc, ni, k); 1480 1481 data = STAILQ_FIRST(&sc->tx_free); 1482 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1483 sc->tx_nfree--; 1484 1485 data->m = m0; 1486 data->ni = ni; 1487 data->rate = rate; 1488 1489 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1490 flags |= RT2573_TX_NEED_ACK; 1491 1492 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1493 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1494 USETW(wh->i_dur, dur); 1495 } 1496 1497 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, hdrlen, 1498 m0->m_pkthdr.len, rate); 1499 1500 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1501 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1502 1503 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1504 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1505 1506 return 0; 1507} 1508 1509static int 1510rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1511{ 1512 struct rum_softc *sc = ic->ic_softc; 1513 int error; 1514 1515 RUM_LOCK(sc); 1516 if (!sc->sc_running) { 1517 RUM_UNLOCK(sc); 1518 return (ENXIO); 1519 } 1520 error = mbufq_enqueue(&sc->sc_snd, m); 1521 if (error) { 1522 RUM_UNLOCK(sc); 1523 return (error); 1524 } 1525 rum_start(sc); 1526 RUM_UNLOCK(sc); 1527 1528 return (0); 1529} 1530 1531static void 1532rum_start(struct rum_softc *sc) 1533{ 1534 struct ieee80211_node *ni; 1535 struct mbuf *m; 1536 1537 RUM_LOCK_ASSERT(sc); 1538 1539 if (!sc->sc_running) 1540 return; 1541 1542 while (sc->tx_nfree >= RUM_TX_MINFREE && 1543 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1544 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1545 if (rum_tx_data(sc, m, ni) != 0) { 1546 if_inc_counter(ni->ni_vap->iv_ifp, 1547 IFCOUNTER_OERRORS, 1); 1548 ieee80211_free_node(ni); 1549 break; 1550 } 1551 } 1552} 1553 1554static void 1555rum_parent(struct ieee80211com *ic) 1556{ 1557 struct rum_softc *sc = ic->ic_softc; 1558 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1559 1560 RUM_LOCK(sc); 1561 if (sc->sc_detached) { 1562 RUM_UNLOCK(sc); 1563 return; 1564 } 1565 RUM_UNLOCK(sc); 1566 1567 if (ic->ic_nrunning > 0) { 1568 if (rum_init(sc) == 0) 1569 ieee80211_start_all(ic); 1570 else 1571 ieee80211_stop(vap); 1572 } else 1573 rum_stop(sc); 1574} 1575 1576static void 1577rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1578{ 1579 struct usb_device_request req; 1580 usb_error_t error; 1581 1582 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1583 req.bRequest = RT2573_READ_EEPROM; 1584 USETW(req.wValue, 0); 1585 USETW(req.wIndex, addr); 1586 USETW(req.wLength, len); 1587 1588 error = rum_do_request(sc, &req, buf); 1589 if (error != 0) { 1590 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1591 usbd_errstr(error)); 1592 } 1593} 1594 1595static uint32_t 1596rum_read(struct rum_softc *sc, uint16_t reg) 1597{ 1598 uint32_t val; 1599 1600 rum_read_multi(sc, reg, &val, sizeof val); 1601 1602 return le32toh(val); 1603} 1604 1605static void 1606rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1607{ 1608 struct usb_device_request req; 1609 usb_error_t error; 1610 1611 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1612 req.bRequest = RT2573_READ_MULTI_MAC; 1613 USETW(req.wValue, 0); 1614 USETW(req.wIndex, reg); 1615 USETW(req.wLength, len); 1616 1617 error = rum_do_request(sc, &req, buf); 1618 if (error != 0) { 1619 device_printf(sc->sc_dev, 1620 "could not multi read MAC register: %s\n", 1621 usbd_errstr(error)); 1622 } 1623} 1624 1625static usb_error_t 1626rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1627{ 1628 uint32_t tmp = htole32(val); 1629 1630 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1631} 1632 1633static usb_error_t 1634rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1635{ 1636 struct usb_device_request req; 1637 usb_error_t error; 1638 size_t offset; 1639 1640 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1641 req.bRequest = RT2573_WRITE_MULTI_MAC; 1642 USETW(req.wValue, 0); 1643 1644 /* write at most 64 bytes at a time */ 1645 for (offset = 0; offset < len; offset += 64) { 1646 USETW(req.wIndex, reg + offset); 1647 USETW(req.wLength, MIN(len - offset, 64)); 1648 1649 error = rum_do_request(sc, &req, (char *)buf + offset); 1650 if (error != 0) { 1651 device_printf(sc->sc_dev, 1652 "could not multi write MAC register: %s\n", 1653 usbd_errstr(error)); 1654 return (error); 1655 } 1656 } 1657 1658 return (USB_ERR_NORMAL_COMPLETION); 1659} 1660 1661static usb_error_t 1662rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1663{ 1664 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1665} 1666 1667static usb_error_t 1668rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1669{ 1670 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1671} 1672 1673static usb_error_t 1674rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1675{ 1676 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1677} 1678 1679static int 1680rum_bbp_busy(struct rum_softc *sc) 1681{ 1682 int ntries; 1683 1684 for (ntries = 0; ntries < 100; ntries++) { 1685 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1686 break; 1687 if (rum_pause(sc, hz / 100)) 1688 break; 1689 } 1690 if (ntries == 100) 1691 return (ETIMEDOUT); 1692 1693 return (0); 1694} 1695 1696static void 1697rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1698{ 1699 uint32_t tmp; 1700 1701 DPRINTFN(2, "reg=0x%08x\n", reg); 1702 1703 if (rum_bbp_busy(sc) != 0) { 1704 device_printf(sc->sc_dev, "could not write to BBP\n"); 1705 return; 1706 } 1707 1708 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1709 rum_write(sc, RT2573_PHY_CSR3, tmp); 1710} 1711 1712static uint8_t 1713rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1714{ 1715 uint32_t val; 1716 int ntries; 1717 1718 DPRINTFN(2, "reg=0x%08x\n", reg); 1719 1720 if (rum_bbp_busy(sc) != 0) { 1721 device_printf(sc->sc_dev, "could not read BBP\n"); 1722 return 0; 1723 } 1724 1725 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1726 rum_write(sc, RT2573_PHY_CSR3, val); 1727 1728 for (ntries = 0; ntries < 100; ntries++) { 1729 val = rum_read(sc, RT2573_PHY_CSR3); 1730 if (!(val & RT2573_BBP_BUSY)) 1731 return val & 0xff; 1732 if (rum_pause(sc, hz / 100)) 1733 break; 1734 } 1735 1736 device_printf(sc->sc_dev, "could not read BBP\n"); 1737 return 0; 1738} 1739 1740static void 1741rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1742{ 1743 uint32_t tmp; 1744 int ntries; 1745 1746 for (ntries = 0; ntries < 100; ntries++) { 1747 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1748 break; 1749 if (rum_pause(sc, hz / 100)) 1750 break; 1751 } 1752 if (ntries == 100) { 1753 device_printf(sc->sc_dev, "could not write to RF\n"); 1754 return; 1755 } 1756 1757 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1758 (reg & 3); 1759 rum_write(sc, RT2573_PHY_CSR4, tmp); 1760 1761 /* remember last written value in sc */ 1762 sc->rf_regs[reg] = val; 1763 1764 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1765} 1766 1767static void 1768rum_select_antenna(struct rum_softc *sc) 1769{ 1770 uint8_t bbp4, bbp77; 1771 uint32_t tmp; 1772 1773 bbp4 = rum_bbp_read(sc, 4); 1774 bbp77 = rum_bbp_read(sc, 77); 1775 1776 /* TBD */ 1777 1778 /* make sure Rx is disabled before switching antenna */ 1779 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1780 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1781 1782 rum_bbp_write(sc, 4, bbp4); 1783 rum_bbp_write(sc, 77, bbp77); 1784 1785 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1786} 1787 1788/* 1789 * Enable multi-rate retries for frames sent at OFDM rates. 1790 * In 802.11b/g mode, allow fallback to CCK rates. 1791 */ 1792static void 1793rum_enable_mrr(struct rum_softc *sc) 1794{ 1795 struct ieee80211com *ic = &sc->sc_ic; 1796 1797 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1798 rum_setbits(sc, RT2573_TXRX_CSR4, 1799 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1800 } else { 1801 rum_modbits(sc, RT2573_TXRX_CSR4, 1802 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1803 } 1804} 1805 1806static void 1807rum_set_txpreamble(struct rum_softc *sc) 1808{ 1809 struct ieee80211com *ic = &sc->sc_ic; 1810 1811 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1812 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1813 else 1814 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1815} 1816 1817static void 1818rum_set_basicrates(struct rum_softc *sc) 1819{ 1820 struct ieee80211com *ic = &sc->sc_ic; 1821 1822 /* update basic rate set */ 1823 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1824 /* 11b basic rates: 1, 2Mbps */ 1825 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1826 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1827 /* 11a basic rates: 6, 12, 24Mbps */ 1828 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1829 } else { 1830 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1831 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1832 } 1833} 1834 1835/* 1836 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1837 * driver. 1838 */ 1839static void 1840rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1841{ 1842 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1843 1844 /* update all BBP registers that depend on the band */ 1845 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1846 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1847 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1848 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1849 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1850 } 1851 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1852 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1853 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1854 } 1855 1856 sc->bbp17 = bbp17; 1857 rum_bbp_write(sc, 17, bbp17); 1858 rum_bbp_write(sc, 96, bbp96); 1859 rum_bbp_write(sc, 104, bbp104); 1860 1861 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1862 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1863 rum_bbp_write(sc, 75, 0x80); 1864 rum_bbp_write(sc, 86, 0x80); 1865 rum_bbp_write(sc, 88, 0x80); 1866 } 1867 1868 rum_bbp_write(sc, 35, bbp35); 1869 rum_bbp_write(sc, 97, bbp97); 1870 rum_bbp_write(sc, 98, bbp98); 1871 1872 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1873 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1874 RT2573_PA_PE_5GHZ); 1875 } else { 1876 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1877 RT2573_PA_PE_2GHZ); 1878 } 1879} 1880 1881static void 1882rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1883{ 1884 struct ieee80211com *ic = &sc->sc_ic; 1885 const struct rfprog *rfprog; 1886 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1887 int8_t power; 1888 int i, chan; 1889 1890 chan = ieee80211_chan2ieee(ic, c); 1891 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1892 return; 1893 1894 /* select the appropriate RF settings based on what EEPROM says */ 1895 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1896 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1897 1898 /* find the settings for this channel (we know it exists) */ 1899 for (i = 0; rfprog[i].chan != chan; i++); 1900 1901 power = sc->txpow[i]; 1902 if (power < 0) { 1903 bbp94 += power; 1904 power = 0; 1905 } else if (power > 31) { 1906 bbp94 += power - 31; 1907 power = 31; 1908 } 1909 1910 /* 1911 * If we are switching from the 2GHz band to the 5GHz band or 1912 * vice-versa, BBP registers need to be reprogrammed. 1913 */ 1914 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1915 rum_select_band(sc, c); 1916 rum_select_antenna(sc); 1917 } 1918 ic->ic_curchan = c; 1919 1920 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1921 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1922 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1923 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1924 1925 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1926 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1927 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1928 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1929 1930 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1931 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1932 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1933 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1934 1935 rum_pause(sc, hz / 100); 1936 1937 /* enable smart mode for MIMO-capable RFs */ 1938 bbp3 = rum_bbp_read(sc, 3); 1939 1940 bbp3 &= ~RT2573_SMART_MODE; 1941 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1942 bbp3 |= RT2573_SMART_MODE; 1943 1944 rum_bbp_write(sc, 3, bbp3); 1945 1946 if (bbp94 != RT2573_BBPR94_DEFAULT) 1947 rum_bbp_write(sc, 94, bbp94); 1948 1949 /* give the chip some extra time to do the switchover */ 1950 rum_pause(sc, hz / 100); 1951} 1952 1953static void 1954rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap) 1955{ 1956 const struct ieee80211_txparam *tp; 1957 struct ieee80211_node *ni = vap->iv_bss; 1958 struct rum_vap *rvp = RUM_VAP(vap); 1959 1960 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1961 rvp->maxretry = tp->maxretry < 0xf ? tp->maxretry : 0xf; 1962 1963 rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) | 1964 RT2573_LONG_RETRY(rvp->maxretry), 1965 RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK); 1966} 1967 1968/* 1969 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1970 * and HostAP operating modes. 1971 */ 1972static int 1973rum_enable_tsf_sync(struct rum_softc *sc) 1974{ 1975 struct ieee80211com *ic = &sc->sc_ic; 1976 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1977 uint32_t tmp; 1978 1979 if (vap->iv_opmode != IEEE80211_M_STA) { 1980 /* 1981 * Change default 16ms TBTT adjustment to 8ms. 1982 * Must be done before enabling beacon generation. 1983 */ 1984 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 1985 return EIO; 1986 } 1987 1988 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1989 1990 /* set beacon interval (in 1/16ms unit) */ 1991 tmp |= vap->iv_bss->ni_intval * 16; 1992 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1993 1994 switch (vap->iv_opmode) { 1995 case IEEE80211_M_STA: 1996 /* 1997 * Local TSF is always updated with remote TSF on beacon 1998 * reception. 1999 */ 2000 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 2001 break; 2002 case IEEE80211_M_IBSS: 2003 /* 2004 * Local TSF is updated with remote TSF on beacon reception 2005 * only if the remote TSF is greater than local TSF. 2006 */ 2007 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 2008 tmp |= RT2573_BCN_TX_EN; 2009 break; 2010 case IEEE80211_M_HOSTAP: 2011 /* SYNC with nobody */ 2012 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 2013 tmp |= RT2573_BCN_TX_EN; 2014 break; 2015 default: 2016 device_printf(sc->sc_dev, 2017 "Enabling TSF failed. undefined opmode %d\n", 2018 vap->iv_opmode); 2019 return EINVAL; 2020 } 2021 2022 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 2023 return EIO; 2024 2025 return 0; 2026} 2027 2028static void 2029rum_enable_tsf(struct rum_softc *sc) 2030{ 2031 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 2032 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 2033} 2034 2035static void 2036rum_abort_tsf_sync(struct rum_softc *sc) 2037{ 2038 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 2039} 2040 2041static void 2042rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 2043{ 2044 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 2045} 2046 2047static void 2048rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id) 2049{ 2050 struct ieee80211com *ic = &sc->sc_ic; 2051 uint8_t slottime; 2052 2053 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 2054 2055 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 2056 2057 DPRINTF("setting slot time to %uus\n", slottime); 2058} 2059 2060static void 2061rum_update_slot(struct ieee80211com *ic) 2062{ 2063 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb); 2064} 2065 2066static void 2067rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 2068{ 2069 2070 rum_write(sc, RT2573_MAC_CSR4, 2071 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 2072 rum_write(sc, RT2573_MAC_CSR5, 2073 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 2074} 2075 2076static void 2077rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 2078{ 2079 2080 rum_write(sc, RT2573_MAC_CSR2, 2081 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 2082 rum_write(sc, RT2573_MAC_CSR3, 2083 addr[4] | addr[5] << 8 | 0xff << 16); 2084} 2085 2086static void 2087rum_setpromisc(struct rum_softc *sc) 2088{ 2089 struct ieee80211com *ic = &sc->sc_ic; 2090 2091 if (ic->ic_promisc == 0) 2092 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2093 else 2094 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2095 2096 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 2097 "entering" : "leaving"); 2098} 2099 2100static void 2101rum_update_promisc(struct ieee80211com *ic) 2102{ 2103 struct rum_softc *sc = ic->ic_softc; 2104 2105 RUM_LOCK(sc); 2106 if (sc->sc_running) 2107 rum_setpromisc(sc); 2108 RUM_UNLOCK(sc); 2109} 2110 2111static void 2112rum_update_mcast(struct ieee80211com *ic) 2113{ 2114 /* Ignore. */ 2115} 2116 2117static const char * 2118rum_get_rf(int rev) 2119{ 2120 switch (rev) { 2121 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 2122 case RT2573_RF_2528: return "RT2528"; 2123 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 2124 case RT2573_RF_5226: return "RT5226"; 2125 default: return "unknown"; 2126 } 2127} 2128 2129static void 2130rum_read_eeprom(struct rum_softc *sc) 2131{ 2132 uint16_t val; 2133#ifdef RUM_DEBUG 2134 int i; 2135#endif 2136 2137 /* read MAC address */ 2138 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 2139 2140 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 2141 val = le16toh(val); 2142 sc->rf_rev = (val >> 11) & 0x1f; 2143 sc->hw_radio = (val >> 10) & 0x1; 2144 sc->rx_ant = (val >> 4) & 0x3; 2145 sc->tx_ant = (val >> 2) & 0x3; 2146 sc->nb_ant = val & 0x3; 2147 2148 DPRINTF("RF revision=%d\n", sc->rf_rev); 2149 2150 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 2151 val = le16toh(val); 2152 sc->ext_5ghz_lna = (val >> 6) & 0x1; 2153 sc->ext_2ghz_lna = (val >> 4) & 0x1; 2154 2155 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 2156 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 2157 2158 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 2159 val = le16toh(val); 2160 if ((val & 0xff) != 0xff) 2161 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 2162 2163 /* Only [-10, 10] is valid */ 2164 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 2165 sc->rssi_2ghz_corr = 0; 2166 2167 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 2168 val = le16toh(val); 2169 if ((val & 0xff) != 0xff) 2170 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 2171 2172 /* Only [-10, 10] is valid */ 2173 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 2174 sc->rssi_5ghz_corr = 0; 2175 2176 if (sc->ext_2ghz_lna) 2177 sc->rssi_2ghz_corr -= 14; 2178 if (sc->ext_5ghz_lna) 2179 sc->rssi_5ghz_corr -= 14; 2180 2181 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2182 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2183 2184 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2185 val = le16toh(val); 2186 if ((val & 0xff) != 0xff) 2187 sc->rffreq = val & 0xff; 2188 2189 DPRINTF("RF freq=%d\n", sc->rffreq); 2190 2191 /* read Tx power for all a/b/g channels */ 2192 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2193 /* XXX default Tx power for 802.11a channels */ 2194 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2195#ifdef RUM_DEBUG 2196 for (i = 0; i < 14; i++) 2197 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2198#endif 2199 2200 /* read default values for BBP registers */ 2201 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2202#ifdef RUM_DEBUG 2203 for (i = 0; i < 14; i++) { 2204 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2205 continue; 2206 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2207 sc->bbp_prom[i].val); 2208 } 2209#endif 2210} 2211 2212static int 2213rum_bbp_wakeup(struct rum_softc *sc) 2214{ 2215 unsigned int ntries; 2216 2217 for (ntries = 0; ntries < 100; ntries++) { 2218 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2219 break; 2220 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2221 if (rum_pause(sc, hz / 100)) 2222 break; 2223 } 2224 if (ntries == 100) { 2225 device_printf(sc->sc_dev, 2226 "timeout waiting for BBP/RF to wakeup\n"); 2227 return (ETIMEDOUT); 2228 } 2229 2230 return (0); 2231} 2232 2233static int 2234rum_bbp_init(struct rum_softc *sc) 2235{ 2236 int i, ntries; 2237 2238 /* wait for BBP to be ready */ 2239 for (ntries = 0; ntries < 100; ntries++) { 2240 const uint8_t val = rum_bbp_read(sc, 0); 2241 if (val != 0 && val != 0xff) 2242 break; 2243 if (rum_pause(sc, hz / 100)) 2244 break; 2245 } 2246 if (ntries == 100) { 2247 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2248 return EIO; 2249 } 2250 2251 /* initialize BBP registers to default values */ 2252 for (i = 0; i < nitems(rum_def_bbp); i++) 2253 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2254 2255 /* write vendor-specific BBP values (from EEPROM) */ 2256 for (i = 0; i < 16; i++) { 2257 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2258 continue; 2259 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2260 } 2261 2262 return 0; 2263} 2264 2265static void 2266rum_clr_shkey_regs(struct rum_softc *sc) 2267{ 2268 rum_write(sc, RT2573_SEC_CSR0, 0); 2269 rum_write(sc, RT2573_SEC_CSR1, 0); 2270 rum_write(sc, RT2573_SEC_CSR5, 0); 2271} 2272 2273static int 2274rum_init(struct rum_softc *sc) 2275{ 2276 struct ieee80211com *ic = &sc->sc_ic; 2277 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2278 uint32_t tmp; 2279 int i, ret; 2280 2281 RUM_LOCK(sc); 2282 if (sc->sc_running) { 2283 ret = 0; 2284 goto end; 2285 } 2286 2287 /* initialize MAC registers to default values */ 2288 for (i = 0; i < nitems(rum_def_mac); i++) 2289 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2290 2291 /* set host ready */ 2292 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2293 rum_write(sc, RT2573_MAC_CSR1, 0); 2294 2295 /* wait for BBP/RF to wakeup */ 2296 if ((ret = rum_bbp_wakeup(sc)) != 0) 2297 goto end; 2298 2299 if ((ret = rum_bbp_init(sc)) != 0) 2300 goto end; 2301 2302 /* select default channel */ 2303 rum_select_band(sc, ic->ic_curchan); 2304 rum_select_antenna(sc); 2305 rum_set_chan(sc, ic->ic_curchan); 2306 2307 /* clear STA registers */ 2308 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2309 2310 /* clear security registers (if required) */ 2311 if (sc->sc_clr_shkeys == 0) { 2312 rum_clr_shkey_regs(sc); 2313 sc->sc_clr_shkeys = 1; 2314 } 2315 2316 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2317 2318 /* initialize ASIC */ 2319 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2320 2321 /* 2322 * Allocate Tx and Rx xfer queues. 2323 */ 2324 rum_setup_tx_list(sc); 2325 2326 /* update Rx filter */ 2327 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2328 2329 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2330 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2331 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2332 RT2573_DROP_ACKCTS; 2333 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2334 tmp |= RT2573_DROP_TODS; 2335 if (ic->ic_promisc == 0) 2336 tmp |= RT2573_DROP_NOT_TO_ME; 2337 } 2338 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2339 2340 sc->sc_running = 1; 2341 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2342 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2343 2344end: RUM_UNLOCK(sc); 2345 2346 if (ret != 0) 2347 rum_stop(sc); 2348 2349 return ret; 2350} 2351 2352static void 2353rum_stop(struct rum_softc *sc) 2354{ 2355 2356 RUM_LOCK(sc); 2357 if (!sc->sc_running) { 2358 RUM_UNLOCK(sc); 2359 return; 2360 } 2361 sc->sc_running = 0; 2362 RUM_UNLOCK(sc); 2363 2364 /* 2365 * Drain the USB transfers, if not already drained: 2366 */ 2367 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2368 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2369 2370 RUM_LOCK(sc); 2371 rum_unsetup_tx_list(sc); 2372 2373 /* disable Rx */ 2374 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2375 2376 /* reset ASIC */ 2377 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2378 rum_write(sc, RT2573_MAC_CSR1, 0); 2379 RUM_UNLOCK(sc); 2380} 2381 2382static void 2383rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2384{ 2385 struct usb_device_request req; 2386 uint16_t reg = RT2573_MCU_CODE_BASE; 2387 usb_error_t err; 2388 2389 /* copy firmware image into NIC */ 2390 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2391 err = rum_write(sc, reg, UGETDW(ucode)); 2392 if (err) { 2393 /* firmware already loaded ? */ 2394 device_printf(sc->sc_dev, "Firmware load " 2395 "failure! (ignored)\n"); 2396 break; 2397 } 2398 } 2399 2400 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2401 req.bRequest = RT2573_MCU_CNTL; 2402 USETW(req.wValue, RT2573_MCU_RUN); 2403 USETW(req.wIndex, 0); 2404 USETW(req.wLength, 0); 2405 2406 err = rum_do_request(sc, &req, NULL); 2407 if (err != 0) { 2408 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2409 usbd_errstr(err)); 2410 } 2411 2412 /* give the chip some time to boot */ 2413 rum_pause(sc, hz / 8); 2414} 2415 2416static int 2417rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2418{ 2419 struct ieee80211com *ic = vap->iv_ic; 2420 struct rum_vap *rvp = RUM_VAP(vap); 2421 struct mbuf *m = rvp->bcn_mbuf; 2422 const struct ieee80211_txparam *tp; 2423 struct rum_tx_desc desc; 2424 2425 RUM_LOCK_ASSERT(sc); 2426 2427 if (m == NULL) 2428 return EINVAL; 2429 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2430 return EINVAL; 2431 2432 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2433 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP, 2434 RT2573_TX_HWSEQ, 0, m->m_pkthdr.len, tp->mgmtrate); 2435 2436 /* copy the Tx descriptor into NIC memory */ 2437 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2438 RT2573_TX_DESC_SIZE) != 0) 2439 return EIO; 2440 2441 /* copy beacon header and payload into NIC memory */ 2442 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2443 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2444 return EIO; 2445 2446 return 0; 2447} 2448 2449static int 2450rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2451{ 2452 struct rum_vap *rvp = RUM_VAP(vap); 2453 struct ieee80211_node *ni = vap->iv_bss; 2454 struct mbuf *m; 2455 2456 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2457 return EINVAL; 2458 2459 m = ieee80211_beacon_alloc(ni); 2460 if (m == NULL) 2461 return ENOMEM; 2462 2463 if (rvp->bcn_mbuf != NULL) 2464 m_freem(rvp->bcn_mbuf); 2465 2466 rvp->bcn_mbuf = m; 2467 2468 return (rum_set_beacon(sc, vap)); 2469} 2470 2471static void 2472rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data, 2473 uint8_t rvp_id) 2474{ 2475 struct ieee80211vap *vap = data->vap; 2476 2477 rum_set_beacon(sc, vap); 2478} 2479 2480static void 2481rum_update_beacon(struct ieee80211vap *vap, int item) 2482{ 2483 struct ieee80211com *ic = vap->iv_ic; 2484 struct rum_softc *sc = ic->ic_softc; 2485 struct rum_vap *rvp = RUM_VAP(vap); 2486 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 2487 struct ieee80211_node *ni = vap->iv_bss; 2488 struct mbuf *m = rvp->bcn_mbuf; 2489 int mcast = 0; 2490 2491 RUM_LOCK(sc); 2492 if (m == NULL) { 2493 m = ieee80211_beacon_alloc(ni); 2494 if (m == NULL) { 2495 device_printf(sc->sc_dev, 2496 "%s: could not allocate beacon frame\n", __func__); 2497 RUM_UNLOCK(sc); 2498 return; 2499 } 2500 rvp->bcn_mbuf = m; 2501 } 2502 2503 switch (item) { 2504 case IEEE80211_BEACON_ERP: 2505 rum_update_slot(ic); 2506 break; 2507 case IEEE80211_BEACON_TIM: 2508 mcast = 1; /*TODO*/ 2509 break; 2510 default: 2511 break; 2512 } 2513 RUM_UNLOCK(sc); 2514 2515 setbit(bo->bo_flags, item); 2516 ieee80211_beacon_update(ni, m, mcast); 2517 2518 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb); 2519} 2520 2521static int 2522rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k, 2523 uint16_t base) 2524{ 2525 2526 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen)) 2527 return EIO; 2528 2529 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) { 2530 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE, 2531 k->wk_txmic, 8)) 2532 return EIO; 2533 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8, 2534 k->wk_rxmic, 8)) 2535 return EIO; 2536 } 2537 2538 return 0; 2539} 2540 2541static void 2542rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data, 2543 uint8_t rvp_id) 2544{ 2545 struct ieee80211_key *k = &data->key; 2546 uint8_t mode; 2547 2548 if (sc->sc_clr_shkeys == 0) { 2549 rum_clr_shkey_regs(sc); 2550 sc->sc_clr_shkeys = 1; 2551 } 2552 2553 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2554 if (mode == 0) 2555 goto print_err; 2556 2557 DPRINTFN(1, "setting group key %d for vap %d, mode %d " 2558 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2559 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2560 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2561 2562 /* Install the key. */ 2563 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0) 2564 goto print_err; 2565 2566 /* Set cipher mode. */ 2567 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2568 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX, 2569 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX) 2570 != 0) 2571 goto print_err; 2572 2573 /* Mark this key as valid. */ 2574 if (rum_setbits(sc, RT2573_SEC_CSR0, 2575 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0) 2576 goto print_err; 2577 2578 return; 2579 2580print_err: 2581 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n", 2582 __func__, k->wk_keyix, rvp_id); 2583} 2584 2585static void 2586rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data, 2587 uint8_t rvp_id) 2588{ 2589 struct ieee80211_key *k = &data->key; 2590 2591 DPRINTF("%s: removing group key %d for vap %d\n", __func__, 2592 k->wk_keyix, rvp_id); 2593 rum_clrbits(sc, 2594 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2595 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX); 2596 rum_clrbits(sc, RT2573_SEC_CSR0, 2597 rvp_id * RT2573_SKEY_MAX + k->wk_keyix); 2598} 2599 2600static void 2601rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data, 2602 uint8_t rvp_id) 2603{ 2604 struct ieee80211_key *k = &data->key; 2605 uint8_t buf[IEEE80211_ADDR_LEN + 1]; 2606 uint8_t mode; 2607 2608 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2609 if (mode == 0) 2610 goto print_err; 2611 2612 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d " 2613 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2614 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2615 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2616 2617 /* Install the key. */ 2618 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0) 2619 goto print_err; 2620 2621 IEEE80211_ADDR_COPY(buf, k->wk_macaddr); 2622 buf[IEEE80211_ADDR_LEN] = mode; 2623 2624 /* Set transmitter address and cipher mode. */ 2625 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix), 2626 buf, sizeof buf) != 0) 2627 goto print_err; 2628 2629 /* Enable key table lookup for this vap. */ 2630 if (sc->vap_key_count[rvp_id]++ == 0) 2631 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0) 2632 goto print_err; 2633 2634 /* Mark this key as valid. */ 2635 if (rum_setbits(sc, 2636 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2637 1 << (k->wk_keyix % 32)) != 0) 2638 goto print_err; 2639 2640 return; 2641 2642print_err: 2643 device_printf(sc->sc_dev, 2644 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix, 2645 rvp_id); 2646} 2647 2648static void 2649rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data, 2650 uint8_t rvp_id) 2651{ 2652 struct ieee80211_key *k = &data->key; 2653 2654 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix); 2655 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2656 1 << (k->wk_keyix % 32)); 2657 sc->keys_bmap &= ~(1 << k->wk_keyix); 2658 if (--sc->vap_key_count[rvp_id] == 0) 2659 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id); 2660} 2661 2662static int 2663rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 2664 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 2665{ 2666 struct rum_softc *sc = vap->iv_ic->ic_softc; 2667 uint8_t i; 2668 2669 if (!(&vap->iv_nw_keys[0] <= k && 2670 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 2671 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 2672 RUM_LOCK(sc); 2673 for (i = 0; i < RT2573_ADDR_MAX; i++) { 2674 if ((sc->keys_bmap & (1 << i)) == 0) { 2675 sc->keys_bmap |= 1 << i; 2676 *keyix = i; 2677 break; 2678 } 2679 } 2680 RUM_UNLOCK(sc); 2681 if (i == RT2573_ADDR_MAX) { 2682 device_printf(sc->sc_dev, 2683 "%s: no free space in the key table\n", 2684 __func__); 2685 return 0; 2686 } 2687 } else 2688 *keyix = 0; 2689 } else { 2690 *keyix = k - vap->iv_nw_keys; 2691 } 2692 *rxkeyix = *keyix; 2693 return 1; 2694} 2695 2696static int 2697rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 2698{ 2699 struct rum_softc *sc = vap->iv_ic->ic_softc; 2700 int group; 2701 2702 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 2703 /* Not for us. */ 2704 return 1; 2705 } 2706 2707 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 2708 2709 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 2710 group ? rum_group_key_set_cb : rum_pair_key_set_cb); 2711} 2712 2713static int 2714rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 2715{ 2716 struct rum_softc *sc = vap->iv_ic->ic_softc; 2717 int group; 2718 2719 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 2720 /* Not for us. */ 2721 return 1; 2722 } 2723 2724 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 2725 2726 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 2727 group ? rum_group_key_del_cb : rum_pair_key_del_cb); 2728} 2729 2730static int 2731rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2732 const struct ieee80211_bpf_params *params) 2733{ 2734 struct rum_softc *sc = ni->ni_ic->ic_softc; 2735 int ret; 2736 2737 RUM_LOCK(sc); 2738 /* prevent management frames from being sent if we're not ready */ 2739 if (!sc->sc_running) { 2740 ret = ENETDOWN; 2741 goto bad; 2742 } 2743 if (sc->tx_nfree < RUM_TX_MINFREE) { 2744 ret = EIO; 2745 goto bad; 2746 } 2747 2748 if (params == NULL) { 2749 /* 2750 * Legacy path; interpret frame contents to decide 2751 * precisely how to send the frame. 2752 */ 2753 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 2754 goto bad; 2755 } else { 2756 /* 2757 * Caller supplied explicit parameters to use in 2758 * sending the frame. 2759 */ 2760 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 2761 goto bad; 2762 } 2763 RUM_UNLOCK(sc); 2764 2765 return 0; 2766bad: 2767 RUM_UNLOCK(sc); 2768 m_freem(m); 2769 ieee80211_free_node(ni); 2770 return ret; 2771} 2772 2773static void 2774rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2775{ 2776 struct ieee80211vap *vap = ni->ni_vap; 2777 struct rum_vap *rvp = RUM_VAP(vap); 2778 2779 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2780 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2781 2782 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2783} 2784 2785static void 2786rum_ratectl_timeout(void *arg) 2787{ 2788 struct rum_vap *rvp = arg; 2789 struct ieee80211vap *vap = &rvp->vap; 2790 struct ieee80211com *ic = vap->iv_ic; 2791 2792 ieee80211_runtask(ic, &rvp->ratectl_task); 2793} 2794 2795static void 2796rum_ratectl_task(void *arg, int pending) 2797{ 2798 struct rum_vap *rvp = arg; 2799 struct ieee80211vap *vap = &rvp->vap; 2800 struct rum_softc *sc = vap->iv_ic->ic_softc; 2801 struct ieee80211_node *ni; 2802 int ok[3], fail; 2803 int sum, success, retrycnt; 2804 2805 RUM_LOCK(sc); 2806 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */ 2807 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2808 2809 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */ 2810 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */ 2811 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */ 2812 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2813 2814 success = ok[0] + ok[1] + ok[2]; 2815 sum = success + fail; 2816 /* XXX at least */ 2817 retrycnt = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1); 2818 2819 if (sum != 0) { 2820 ni = ieee80211_ref_node(vap->iv_bss); 2821 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2822 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2823 ieee80211_free_node(ni); 2824 } 2825 2826 /* count TX retry-fail as Tx errors */ 2827 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2828 2829 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2830 RUM_UNLOCK(sc); 2831} 2832 2833static void 2834rum_scan_start(struct ieee80211com *ic) 2835{ 2836 struct rum_softc *sc = ic->ic_softc; 2837 2838 RUM_LOCK(sc); 2839 rum_abort_tsf_sync(sc); 2840 rum_set_bssid(sc, ieee80211broadcastaddr); 2841 RUM_UNLOCK(sc); 2842 2843} 2844 2845static void 2846rum_scan_end(struct ieee80211com *ic) 2847{ 2848 struct rum_softc *sc = ic->ic_softc; 2849 2850 RUM_LOCK(sc); 2851 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 2852 rum_enable_tsf_sync(sc); 2853 else 2854 rum_enable_tsf(sc); 2855 rum_set_bssid(sc, sc->sc_bssid); 2856 RUM_UNLOCK(sc); 2857 2858} 2859 2860static void 2861rum_set_channel(struct ieee80211com *ic) 2862{ 2863 struct rum_softc *sc = ic->ic_softc; 2864 2865 RUM_LOCK(sc); 2866 rum_set_chan(sc, ic->ic_curchan); 2867 RUM_UNLOCK(sc); 2868} 2869 2870static int 2871rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2872{ 2873 struct ieee80211com *ic = &sc->sc_ic; 2874 int lna, agc, rssi; 2875 2876 lna = (raw >> 5) & 0x3; 2877 agc = raw & 0x1f; 2878 2879 if (lna == 0) { 2880 /* 2881 * No RSSI mapping 2882 * 2883 * NB: Since RSSI is relative to noise floor, -1 is 2884 * adequate for caller to know error happened. 2885 */ 2886 return -1; 2887 } 2888 2889 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2890 2891 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2892 rssi += sc->rssi_2ghz_corr; 2893 2894 if (lna == 1) 2895 rssi -= 64; 2896 else if (lna == 2) 2897 rssi -= 74; 2898 else if (lna == 3) 2899 rssi -= 90; 2900 } else { 2901 rssi += sc->rssi_5ghz_corr; 2902 2903 if (!sc->ext_5ghz_lna && lna != 1) 2904 rssi += 4; 2905 2906 if (lna == 1) 2907 rssi -= 64; 2908 else if (lna == 2) 2909 rssi -= 86; 2910 else if (lna == 3) 2911 rssi -= 100; 2912 } 2913 return rssi; 2914} 2915 2916static int 2917rum_pause(struct rum_softc *sc, int timeout) 2918{ 2919 2920 usb_pause_mtx(&sc->sc_mtx, timeout); 2921 return (0); 2922} 2923 2924static device_method_t rum_methods[] = { 2925 /* Device interface */ 2926 DEVMETHOD(device_probe, rum_match), 2927 DEVMETHOD(device_attach, rum_attach), 2928 DEVMETHOD(device_detach, rum_detach), 2929 DEVMETHOD_END 2930}; 2931 2932static driver_t rum_driver = { 2933 .name = "rum", 2934 .methods = rum_methods, 2935 .size = sizeof(struct rum_softc), 2936}; 2937 2938static devclass_t rum_devclass; 2939 2940DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2941MODULE_DEPEND(rum, wlan, 1, 1, 1); 2942MODULE_DEPEND(rum, usb, 1, 1, 1); 2943MODULE_VERSION(rum, 1); 2944