if_rum.c revision 292176
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 292176 2015-12-13 22:08:27Z avos $ */ 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 * Copyright (c) 2015 Andriy Voskoboinyk <avos@FreeBSD.org> 8 * 9 * Permission to use, copy, modify, and distribute this software for any 10 * purpose with or without fee is hereby granted, provided that the above 11 * copyright notice and this permission notice appear in all copies. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 19 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22#include <sys/cdefs.h> 23__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_rum.c 292176 2015-12-13 22:08:27Z avos $"); 24 25/*- 26 * Ralink Technology RT2501USB/RT2601USB chipset driver 27 * http://www.ralinktech.com.tw/ 28 */ 29 30#include <sys/param.h> 31#include <sys/sockio.h> 32#include <sys/sysctl.h> 33#include <sys/lock.h> 34#include <sys/mutex.h> 35#include <sys/mbuf.h> 36#include <sys/kernel.h> 37#include <sys/socket.h> 38#include <sys/systm.h> 39#include <sys/malloc.h> 40#include <sys/module.h> 41#include <sys/bus.h> 42#include <sys/endian.h> 43#include <sys/kdb.h> 44 45#include <machine/bus.h> 46#include <machine/resource.h> 47#include <sys/rman.h> 48 49#include <net/bpf.h> 50#include <net/if.h> 51#include <net/if_var.h> 52#include <net/if_arp.h> 53#include <net/ethernet.h> 54#include <net/if_dl.h> 55#include <net/if_media.h> 56#include <net/if_types.h> 57 58#ifdef INET 59#include <netinet/in.h> 60#include <netinet/in_systm.h> 61#include <netinet/in_var.h> 62#include <netinet/if_ether.h> 63#include <netinet/ip.h> 64#endif 65 66#include <net80211/ieee80211_var.h> 67#include <net80211/ieee80211_regdomain.h> 68#include <net80211/ieee80211_radiotap.h> 69#include <net80211/ieee80211_ratectl.h> 70 71#include <dev/usb/usb.h> 72#include <dev/usb/usbdi.h> 73#include "usbdevs.h" 74 75#define USB_DEBUG_VAR rum_debug 76#include <dev/usb/usb_debug.h> 77 78#include <dev/usb/wlan/if_rumreg.h> 79#include <dev/usb/wlan/if_rumvar.h> 80#include <dev/usb/wlan/if_rumfw.h> 81 82#ifdef USB_DEBUG 83static int rum_debug = 0; 84 85static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 86SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0, 87 "Debug level"); 88#endif 89 90static const STRUCT_USB_HOST_ID rum_devs[] = { 91#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 92 RUM_DEV(ABOCOM, HWU54DM), 93 RUM_DEV(ABOCOM, RT2573_2), 94 RUM_DEV(ABOCOM, RT2573_3), 95 RUM_DEV(ABOCOM, RT2573_4), 96 RUM_DEV(ABOCOM, WUG2700), 97 RUM_DEV(AMIT, CGWLUSB2GO), 98 RUM_DEV(ASUS, RT2573_1), 99 RUM_DEV(ASUS, RT2573_2), 100 RUM_DEV(BELKIN, F5D7050A), 101 RUM_DEV(BELKIN, F5D9050V3), 102 RUM_DEV(CISCOLINKSYS, WUSB54GC), 103 RUM_DEV(CISCOLINKSYS, WUSB54GR), 104 RUM_DEV(CONCEPTRONIC2, C54RU2), 105 RUM_DEV(COREGA, CGWLUSB2GL), 106 RUM_DEV(COREGA, CGWLUSB2GPX), 107 RUM_DEV(DICKSMITH, CWD854F), 108 RUM_DEV(DICKSMITH, RT2573), 109 RUM_DEV(EDIMAX, EW7318USG), 110 RUM_DEV(DLINK2, DWLG122C1), 111 RUM_DEV(DLINK2, WUA1340), 112 RUM_DEV(DLINK2, DWA111), 113 RUM_DEV(DLINK2, DWA110), 114 RUM_DEV(GIGABYTE, GNWB01GS), 115 RUM_DEV(GIGABYTE, GNWI05GS), 116 RUM_DEV(GIGASET, RT2573), 117 RUM_DEV(GOODWAY, RT2573), 118 RUM_DEV(GUILLEMOT, HWGUSB254LB), 119 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 120 RUM_DEV(HUAWEI3COM, WUB320G), 121 RUM_DEV(MELCO, G54HP), 122 RUM_DEV(MELCO, SG54HP), 123 RUM_DEV(MELCO, SG54HG), 124 RUM_DEV(MELCO, WLIUCG), 125 RUM_DEV(MELCO, WLRUCG), 126 RUM_DEV(MELCO, WLRUCGAOSS), 127 RUM_DEV(MSI, RT2573_1), 128 RUM_DEV(MSI, RT2573_2), 129 RUM_DEV(MSI, RT2573_3), 130 RUM_DEV(MSI, RT2573_4), 131 RUM_DEV(NOVATECH, RT2573), 132 RUM_DEV(PLANEX2, GWUS54HP), 133 RUM_DEV(PLANEX2, GWUS54MINI2), 134 RUM_DEV(PLANEX2, GWUSMM), 135 RUM_DEV(QCOM, RT2573), 136 RUM_DEV(QCOM, RT2573_2), 137 RUM_DEV(QCOM, RT2573_3), 138 RUM_DEV(RALINK, RT2573), 139 RUM_DEV(RALINK, RT2573_2), 140 RUM_DEV(RALINK, RT2671), 141 RUM_DEV(SITECOMEU, WL113R2), 142 RUM_DEV(SITECOMEU, WL172), 143 RUM_DEV(SPARKLAN, RT2573), 144 RUM_DEV(SURECOM, RT2573), 145#undef RUM_DEV 146}; 147 148static device_probe_t rum_match; 149static device_attach_t rum_attach; 150static device_detach_t rum_detach; 151 152static usb_callback_t rum_bulk_read_callback; 153static usb_callback_t rum_bulk_write_callback; 154 155static usb_error_t rum_do_request(struct rum_softc *sc, 156 struct usb_device_request *req, void *data); 157static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 158 const char [IFNAMSIZ], int, enum ieee80211_opmode, 159 int, const uint8_t [IEEE80211_ADDR_LEN], 160 const uint8_t [IEEE80211_ADDR_LEN]); 161static void rum_vap_delete(struct ieee80211vap *); 162static void rum_cmdq_cb(void *, int); 163static int rum_cmd_sleepable(struct rum_softc *, const void *, 164 size_t, uint8_t, CMD_FUNC_PROTO); 165static void rum_tx_free(struct rum_tx_data *, int); 166static void rum_setup_tx_list(struct rum_softc *); 167static void rum_unsetup_tx_list(struct rum_softc *); 168static int rum_newstate(struct ieee80211vap *, 169 enum ieee80211_state, int); 170static uint8_t rum_crypto_mode(struct rum_softc *, u_int, int); 171static void rum_setup_tx_desc(struct rum_softc *, 172 struct rum_tx_desc *, struct ieee80211_key *, 173 uint32_t, uint8_t, uint8_t, int, int, int); 174static uint32_t rum_tx_crypto_flags(struct rum_softc *, 175 struct ieee80211_node *, 176 const struct ieee80211_key *); 177static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 178 struct ieee80211_node *); 179static int rum_tx_raw(struct rum_softc *, struct mbuf *, 180 struct ieee80211_node *, 181 const struct ieee80211_bpf_params *); 182static int rum_tx_data(struct rum_softc *, struct mbuf *, 183 struct ieee80211_node *); 184static int rum_transmit(struct ieee80211com *, struct mbuf *); 185static void rum_start(struct rum_softc *); 186static void rum_parent(struct ieee80211com *); 187static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 188 int); 189static uint32_t rum_read(struct rum_softc *, uint16_t); 190static void rum_read_multi(struct rum_softc *, uint16_t, void *, 191 int); 192static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 193static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 194 size_t); 195static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 196static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 197static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 198 uint32_t); 199static int rum_bbp_busy(struct rum_softc *); 200static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 201static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 202static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 203static void rum_select_antenna(struct rum_softc *); 204static void rum_enable_mrr(struct rum_softc *); 205static void rum_set_txpreamble(struct rum_softc *); 206static void rum_set_basicrates(struct rum_softc *); 207static void rum_select_band(struct rum_softc *, 208 struct ieee80211_channel *); 209static void rum_set_chan(struct rum_softc *, 210 struct ieee80211_channel *); 211static void rum_set_maxretry(struct rum_softc *, 212 struct ieee80211vap *); 213static int rum_enable_tsf_sync(struct rum_softc *); 214static void rum_enable_tsf(struct rum_softc *); 215static void rum_abort_tsf_sync(struct rum_softc *); 216static void rum_get_tsf(struct rum_softc *, uint64_t *); 217static void rum_update_slot_cb(struct rum_softc *, 218 union sec_param *, uint8_t); 219static void rum_update_slot(struct ieee80211com *); 220static int rum_wme_update(struct ieee80211com *); 221static void rum_set_bssid(struct rum_softc *, const uint8_t *); 222static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 223static void rum_update_mcast(struct ieee80211com *); 224static void rum_update_promisc(struct ieee80211com *); 225static void rum_setpromisc(struct rum_softc *); 226static const char *rum_get_rf(int); 227static void rum_read_eeprom(struct rum_softc *); 228static int rum_bbp_wakeup(struct rum_softc *); 229static int rum_bbp_init(struct rum_softc *); 230static void rum_clr_shkey_regs(struct rum_softc *); 231static int rum_init(struct rum_softc *); 232static void rum_stop(struct rum_softc *); 233static void rum_load_microcode(struct rum_softc *, const uint8_t *, 234 size_t); 235static int rum_set_beacon(struct rum_softc *, 236 struct ieee80211vap *); 237static int rum_alloc_beacon(struct rum_softc *, 238 struct ieee80211vap *); 239static void rum_update_beacon_cb(struct rum_softc *, 240 union sec_param *, uint8_t); 241static void rum_update_beacon(struct ieee80211vap *, int); 242static int rum_common_key_set(struct rum_softc *, 243 struct ieee80211_key *, uint16_t); 244static void rum_group_key_set_cb(struct rum_softc *, 245 union sec_param *, uint8_t); 246static void rum_group_key_del_cb(struct rum_softc *, 247 union sec_param *, uint8_t); 248static void rum_pair_key_set_cb(struct rum_softc *, 249 union sec_param *, uint8_t); 250static void rum_pair_key_del_cb(struct rum_softc *, 251 union sec_param *, uint8_t); 252static int rum_key_alloc(struct ieee80211vap *, 253 struct ieee80211_key *, ieee80211_keyix *, 254 ieee80211_keyix *); 255static int rum_key_set(struct ieee80211vap *, 256 const struct ieee80211_key *); 257static int rum_key_delete(struct ieee80211vap *, 258 const struct ieee80211_key *); 259static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 260 const struct ieee80211_bpf_params *); 261static void rum_scan_start(struct ieee80211com *); 262static void rum_scan_end(struct ieee80211com *); 263static void rum_set_channel(struct ieee80211com *); 264static int rum_get_rssi(struct rum_softc *, uint8_t); 265static void rum_ratectl_start(struct rum_softc *, 266 struct ieee80211_node *); 267static void rum_ratectl_timeout(void *); 268static void rum_ratectl_task(void *, int); 269static int rum_pause(struct rum_softc *, int); 270 271static const struct { 272 uint32_t reg; 273 uint32_t val; 274} rum_def_mac[] = { 275 { RT2573_TXRX_CSR0, 0x025fb032 }, 276 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 277 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 278 { RT2573_TXRX_CSR3, 0x00858687 }, 279 { RT2573_TXRX_CSR7, 0x2e31353b }, 280 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 281 { RT2573_TXRX_CSR15, 0x0000000f }, 282 { RT2573_MAC_CSR6, 0x00000fff }, 283 { RT2573_MAC_CSR8, 0x016c030a }, 284 { RT2573_MAC_CSR10, 0x00000718 }, 285 { RT2573_MAC_CSR12, 0x00000004 }, 286 { RT2573_MAC_CSR13, 0x00007f00 }, 287 { RT2573_SEC_CSR2, 0x00000000 }, 288 { RT2573_SEC_CSR3, 0x00000000 }, 289 { RT2573_SEC_CSR4, 0x00000000 }, 290 { RT2573_PHY_CSR1, 0x000023b0 }, 291 { RT2573_PHY_CSR5, 0x00040a06 }, 292 { RT2573_PHY_CSR6, 0x00080606 }, 293 { RT2573_PHY_CSR7, 0x00000408 }, 294 { RT2573_AIFSN_CSR, 0x00002273 }, 295 { RT2573_CWMIN_CSR, 0x00002344 }, 296 { RT2573_CWMAX_CSR, 0x000034aa } 297}; 298 299static const struct { 300 uint8_t reg; 301 uint8_t val; 302} rum_def_bbp[] = { 303 { 3, 0x80 }, 304 { 15, 0x30 }, 305 { 17, 0x20 }, 306 { 21, 0xc8 }, 307 { 22, 0x38 }, 308 { 23, 0x06 }, 309 { 24, 0xfe }, 310 { 25, 0x0a }, 311 { 26, 0x0d }, 312 { 32, 0x0b }, 313 { 34, 0x12 }, 314 { 37, 0x07 }, 315 { 39, 0xf8 }, 316 { 41, 0x60 }, 317 { 53, 0x10 }, 318 { 54, 0x18 }, 319 { 60, 0x10 }, 320 { 61, 0x04 }, 321 { 62, 0x04 }, 322 { 75, 0xfe }, 323 { 86, 0xfe }, 324 { 88, 0xfe }, 325 { 90, 0x0f }, 326 { 99, 0x00 }, 327 { 102, 0x16 }, 328 { 107, 0x04 } 329}; 330 331static const struct rfprog { 332 uint8_t chan; 333 uint32_t r1, r2, r3, r4; 334} rum_rf5226[] = { 335 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 336 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 337 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 338 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 339 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 340 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 341 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 342 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 343 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 344 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 345 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 346 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 347 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 348 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 349 350 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 351 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 352 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 353 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 354 355 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 356 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 357 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 358 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 359 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 360 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 361 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 362 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 363 364 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 365 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 366 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 367 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 368 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 369 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 370 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 371 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 372 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 373 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 374 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 375 376 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 377 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 378 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 379 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 380 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 381}, rum_rf5225[] = { 382 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 383 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 384 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 385 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 386 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 387 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 388 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 389 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 390 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 391 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 392 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 393 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 394 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 395 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 396 397 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 398 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 399 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 400 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 401 402 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 403 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 404 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 405 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 406 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 407 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 408 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 409 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 410 411 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 412 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 413 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 414 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 415 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 416 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 417 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 418 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 419 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 420 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 421 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 422 423 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 424 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 425 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 426 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 427 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 428}; 429 430static const struct usb_config rum_config[RUM_N_TRANSFER] = { 431 [RUM_BULK_WR] = { 432 .type = UE_BULK, 433 .endpoint = UE_ADDR_ANY, 434 .direction = UE_DIR_OUT, 435 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 436 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 437 .callback = rum_bulk_write_callback, 438 .timeout = 5000, /* ms */ 439 }, 440 [RUM_BULK_RD] = { 441 .type = UE_BULK, 442 .endpoint = UE_ADDR_ANY, 443 .direction = UE_DIR_IN, 444 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 445 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 446 .callback = rum_bulk_read_callback, 447 }, 448}; 449 450static int 451rum_match(device_t self) 452{ 453 struct usb_attach_arg *uaa = device_get_ivars(self); 454 455 if (uaa->usb_mode != USB_MODE_HOST) 456 return (ENXIO); 457 if (uaa->info.bConfigIndex != 0) 458 return (ENXIO); 459 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 460 return (ENXIO); 461 462 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 463} 464 465static int 466rum_attach(device_t self) 467{ 468 struct usb_attach_arg *uaa = device_get_ivars(self); 469 struct rum_softc *sc = device_get_softc(self); 470 struct ieee80211com *ic = &sc->sc_ic; 471 uint8_t iface_index, bands; 472 uint32_t tmp; 473 int error, ntries; 474 475 device_set_usb_desc(self); 476 sc->sc_udev = uaa->device; 477 sc->sc_dev = self; 478 479 RUM_LOCK_INIT(sc); 480 RUM_CMDQ_LOCK_INIT(sc); 481 mbufq_init(&sc->sc_snd, ifqmaxlen); 482 483 iface_index = RT2573_IFACE_INDEX; 484 error = usbd_transfer_setup(uaa->device, &iface_index, 485 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 486 if (error) { 487 device_printf(self, "could not allocate USB transfers, " 488 "err=%s\n", usbd_errstr(error)); 489 goto detach; 490 } 491 492 RUM_LOCK(sc); 493 /* retrieve RT2573 rev. no */ 494 for (ntries = 0; ntries < 100; ntries++) { 495 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 496 break; 497 if (rum_pause(sc, hz / 100)) 498 break; 499 } 500 if (ntries == 100) { 501 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 502 RUM_UNLOCK(sc); 503 goto detach; 504 } 505 506 /* retrieve MAC address and various other things from EEPROM */ 507 rum_read_eeprom(sc); 508 509 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 510 tmp, rum_get_rf(sc->rf_rev)); 511 512 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 513 RUM_UNLOCK(sc); 514 515 ic->ic_softc = sc; 516 ic->ic_name = device_get_nameunit(self); 517 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 518 519 /* set device capabilities */ 520 ic->ic_caps = 521 IEEE80211_C_STA /* station mode supported */ 522 | IEEE80211_C_IBSS /* IBSS mode supported */ 523 | IEEE80211_C_MONITOR /* monitor mode supported */ 524 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 525 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 526 | IEEE80211_C_TXPMGT /* tx power management */ 527 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 528 | IEEE80211_C_SHSLOT /* short slot time supported */ 529 | IEEE80211_C_BGSCAN /* bg scanning supported */ 530 | IEEE80211_C_WPA /* 802.11i */ 531 | IEEE80211_C_WME /* 802.11e */ 532 ; 533 534 ic->ic_cryptocaps = 535 IEEE80211_CRYPTO_WEP | 536 IEEE80211_CRYPTO_AES_CCM | 537 IEEE80211_CRYPTO_TKIPMIC | 538 IEEE80211_CRYPTO_TKIP; 539 540 bands = 0; 541 setbit(&bands, IEEE80211_MODE_11B); 542 setbit(&bands, IEEE80211_MODE_11G); 543 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 544 setbit(&bands, IEEE80211_MODE_11A); 545 ieee80211_init_channels(ic, NULL, &bands); 546 547 ieee80211_ifattach(ic); 548 ic->ic_update_promisc = rum_update_promisc; 549 ic->ic_raw_xmit = rum_raw_xmit; 550 ic->ic_scan_start = rum_scan_start; 551 ic->ic_scan_end = rum_scan_end; 552 ic->ic_set_channel = rum_set_channel; 553 ic->ic_transmit = rum_transmit; 554 ic->ic_parent = rum_parent; 555 ic->ic_vap_create = rum_vap_create; 556 ic->ic_vap_delete = rum_vap_delete; 557 ic->ic_updateslot = rum_update_slot; 558 ic->ic_wme.wme_update = rum_wme_update; 559 ic->ic_update_mcast = rum_update_mcast; 560 561 ieee80211_radiotap_attach(ic, 562 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 563 RT2573_TX_RADIOTAP_PRESENT, 564 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 565 RT2573_RX_RADIOTAP_PRESENT); 566 567 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 568 569 if (bootverbose) 570 ieee80211_announce(ic); 571 572 return (0); 573 574detach: 575 rum_detach(self); 576 return (ENXIO); /* failure */ 577} 578 579static int 580rum_detach(device_t self) 581{ 582 struct rum_softc *sc = device_get_softc(self); 583 struct ieee80211com *ic = &sc->sc_ic; 584 585 /* Prevent further ioctls */ 586 RUM_LOCK(sc); 587 sc->sc_detached = 1; 588 RUM_UNLOCK(sc); 589 590 /* stop all USB transfers */ 591 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 592 593 /* free TX list, if any */ 594 RUM_LOCK(sc); 595 rum_unsetup_tx_list(sc); 596 RUM_UNLOCK(sc); 597 598 if (ic->ic_softc == sc) { 599 ieee80211_draintask(ic, &sc->cmdq_task); 600 ieee80211_ifdetach(ic); 601 } 602 603 mbufq_drain(&sc->sc_snd); 604 RUM_CMDQ_LOCK_DESTROY(sc); 605 RUM_LOCK_DESTROY(sc); 606 607 return (0); 608} 609 610static usb_error_t 611rum_do_request(struct rum_softc *sc, 612 struct usb_device_request *req, void *data) 613{ 614 usb_error_t err; 615 int ntries = 10; 616 617 while (ntries--) { 618 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 619 req, data, 0, NULL, 250 /* ms */); 620 if (err == 0) 621 break; 622 623 DPRINTFN(1, "Control request failed, %s (retrying)\n", 624 usbd_errstr(err)); 625 if (rum_pause(sc, hz / 100)) 626 break; 627 } 628 return (err); 629} 630 631static struct ieee80211vap * 632rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 633 enum ieee80211_opmode opmode, int flags, 634 const uint8_t bssid[IEEE80211_ADDR_LEN], 635 const uint8_t mac[IEEE80211_ADDR_LEN]) 636{ 637 struct rum_softc *sc = ic->ic_softc; 638 struct rum_vap *rvp; 639 struct ieee80211vap *vap; 640 641 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 642 return NULL; 643 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 644 vap = &rvp->vap; 645 /* enable s/w bmiss handling for sta mode */ 646 647 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 648 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 649 /* out of memory */ 650 free(rvp, M_80211_VAP); 651 return (NULL); 652 } 653 654 /* override state transition machine */ 655 rvp->newstate = vap->iv_newstate; 656 vap->iv_newstate = rum_newstate; 657 vap->iv_key_alloc = rum_key_alloc; 658 vap->iv_key_set = rum_key_set; 659 vap->iv_key_delete = rum_key_delete; 660 vap->iv_update_beacon = rum_update_beacon; 661 vap->iv_max_aid = RT2573_ADDR_MAX; 662 663 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 664 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 665 ieee80211_ratectl_init(vap); 666 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 667 /* complete setup */ 668 ieee80211_vap_attach(vap, ieee80211_media_change, 669 ieee80211_media_status, mac); 670 ic->ic_opmode = opmode; 671 return vap; 672} 673 674static void 675rum_vap_delete(struct ieee80211vap *vap) 676{ 677 struct rum_vap *rvp = RUM_VAP(vap); 678 struct ieee80211com *ic = vap->iv_ic; 679 680 m_freem(rvp->bcn_mbuf); 681 usb_callout_drain(&rvp->ratectl_ch); 682 ieee80211_draintask(ic, &rvp->ratectl_task); 683 ieee80211_ratectl_deinit(vap); 684 ieee80211_vap_detach(vap); 685 free(rvp, M_80211_VAP); 686} 687 688static void 689rum_cmdq_cb(void *arg, int pending) 690{ 691 struct rum_softc *sc = arg; 692 struct rum_cmdq *rc; 693 694 RUM_CMDQ_LOCK(sc); 695 while (sc->cmdq[sc->cmdq_first].func != NULL) { 696 rc = &sc->cmdq[sc->cmdq_first]; 697 RUM_CMDQ_UNLOCK(sc); 698 699 RUM_LOCK(sc); 700 rc->func(sc, &rc->data, rc->rvp_id); 701 RUM_UNLOCK(sc); 702 703 RUM_CMDQ_LOCK(sc); 704 memset(rc, 0, sizeof (*rc)); 705 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 706 } 707 RUM_CMDQ_UNLOCK(sc); 708} 709 710static int 711rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 712 uint8_t rvp_id, CMD_FUNC_PROTO) 713{ 714 struct ieee80211com *ic = &sc->sc_ic; 715 716 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 717 718 RUM_CMDQ_LOCK(sc); 719 if (sc->cmdq[sc->cmdq_last].func != NULL) { 720 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 721 RUM_CMDQ_UNLOCK(sc); 722 723 return EAGAIN; 724 } 725 726 if (ptr != NULL) 727 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 728 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 729 sc->cmdq[sc->cmdq_last].func = func; 730 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 731 RUM_CMDQ_UNLOCK(sc); 732 733 ieee80211_runtask(ic, &sc->cmdq_task); 734 735 return 0; 736} 737 738static void 739rum_tx_free(struct rum_tx_data *data, int txerr) 740{ 741 struct rum_softc *sc = data->sc; 742 743 if (data->m != NULL) { 744 ieee80211_tx_complete(data->ni, data->m, txerr); 745 data->m = NULL; 746 data->ni = NULL; 747 } 748 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 749 sc->tx_nfree++; 750} 751 752static void 753rum_setup_tx_list(struct rum_softc *sc) 754{ 755 struct rum_tx_data *data; 756 int i; 757 758 sc->tx_nfree = 0; 759 STAILQ_INIT(&sc->tx_q); 760 STAILQ_INIT(&sc->tx_free); 761 762 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 763 data = &sc->tx_data[i]; 764 765 data->sc = sc; 766 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 767 sc->tx_nfree++; 768 } 769} 770 771static void 772rum_unsetup_tx_list(struct rum_softc *sc) 773{ 774 struct rum_tx_data *data; 775 int i; 776 777 /* make sure any subsequent use of the queues will fail */ 778 sc->tx_nfree = 0; 779 STAILQ_INIT(&sc->tx_q); 780 STAILQ_INIT(&sc->tx_free); 781 782 /* free up all node references and mbufs */ 783 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 784 data = &sc->tx_data[i]; 785 786 if (data->m != NULL) { 787 m_freem(data->m); 788 data->m = NULL; 789 } 790 if (data->ni != NULL) { 791 ieee80211_free_node(data->ni); 792 data->ni = NULL; 793 } 794 } 795} 796 797static int 798rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 799{ 800 struct rum_vap *rvp = RUM_VAP(vap); 801 struct ieee80211com *ic = vap->iv_ic; 802 struct rum_softc *sc = ic->ic_softc; 803 const struct ieee80211_txparam *tp; 804 enum ieee80211_state ostate; 805 struct ieee80211_node *ni; 806 int ret; 807 808 ostate = vap->iv_state; 809 DPRINTF("%s -> %s\n", 810 ieee80211_state_name[ostate], 811 ieee80211_state_name[nstate]); 812 813 IEEE80211_UNLOCK(ic); 814 RUM_LOCK(sc); 815 usb_callout_stop(&rvp->ratectl_ch); 816 817 switch (nstate) { 818 case IEEE80211_S_INIT: 819 if (ostate == IEEE80211_S_RUN) 820 rum_abort_tsf_sync(sc); 821 822 break; 823 824 case IEEE80211_S_RUN: 825 ni = ieee80211_ref_node(vap->iv_bss); 826 827 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 828 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC || 829 ni->ni_chan == IEEE80211_CHAN_ANYC) { 830 ret = EINVAL; 831 goto run_fail; 832 } 833 rum_update_slot_cb(sc, NULL, 0); 834 rum_enable_mrr(sc); 835 rum_set_txpreamble(sc); 836 rum_set_basicrates(sc); 837 rum_set_maxretry(sc, vap); 838 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 839 rum_set_bssid(sc, sc->sc_bssid); 840 } 841 842 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 843 vap->iv_opmode == IEEE80211_M_IBSS) { 844 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 845 goto run_fail; 846 } 847 848 if (vap->iv_opmode != IEEE80211_M_MONITOR && 849 vap->iv_opmode != IEEE80211_M_AHDEMO) { 850 if ((ret = rum_enable_tsf_sync(sc)) != 0) 851 goto run_fail; 852 } else 853 rum_enable_tsf(sc); 854 855 /* enable automatic rate adaptation */ 856 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 857 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 858 rum_ratectl_start(sc, ni); 859 ieee80211_free_node(ni); 860 break; 861 default: 862 break; 863 } 864 RUM_UNLOCK(sc); 865 IEEE80211_LOCK(ic); 866 return (rvp->newstate(vap, nstate, arg)); 867 868run_fail: 869 RUM_UNLOCK(sc); 870 IEEE80211_LOCK(ic); 871 ieee80211_free_node(ni); 872 return ret; 873} 874 875static void 876rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 877{ 878 struct rum_softc *sc = usbd_xfer_softc(xfer); 879 struct ieee80211vap *vap; 880 struct rum_tx_data *data; 881 struct mbuf *m; 882 struct usb_page_cache *pc; 883 unsigned int len; 884 int actlen, sumlen; 885 886 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 887 888 switch (USB_GET_STATE(xfer)) { 889 case USB_ST_TRANSFERRED: 890 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 891 892 /* free resources */ 893 data = usbd_xfer_get_priv(xfer); 894 rum_tx_free(data, 0); 895 usbd_xfer_set_priv(xfer, NULL); 896 897 /* FALLTHROUGH */ 898 case USB_ST_SETUP: 899tr_setup: 900 data = STAILQ_FIRST(&sc->tx_q); 901 if (data) { 902 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 903 m = data->m; 904 905 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 906 DPRINTFN(0, "data overflow, %u bytes\n", 907 m->m_pkthdr.len); 908 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 909 } 910 pc = usbd_xfer_get_frame(xfer, 0); 911 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 912 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 913 m->m_pkthdr.len); 914 915 vap = data->ni->ni_vap; 916 if (ieee80211_radiotap_active_vap(vap)) { 917 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 918 919 tap->wt_flags = 0; 920 tap->wt_rate = data->rate; 921 rum_get_tsf(sc, &tap->wt_tsf); 922 tap->wt_antenna = sc->tx_ant; 923 924 ieee80211_radiotap_tx(vap, m); 925 } 926 927 /* align end on a 4-bytes boundary */ 928 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 929 if ((len % 64) == 0) 930 len += 4; 931 932 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 933 m->m_pkthdr.len, len); 934 935 usbd_xfer_set_frame_len(xfer, 0, len); 936 usbd_xfer_set_priv(xfer, data); 937 938 usbd_transfer_submit(xfer); 939 } 940 rum_start(sc); 941 break; 942 943 default: /* Error */ 944 DPRINTFN(11, "transfer error, %s\n", 945 usbd_errstr(error)); 946 947 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 948 data = usbd_xfer_get_priv(xfer); 949 if (data != NULL) { 950 rum_tx_free(data, error); 951 usbd_xfer_set_priv(xfer, NULL); 952 } 953 954 if (error != USB_ERR_CANCELLED) { 955 if (error == USB_ERR_TIMEOUT) 956 device_printf(sc->sc_dev, "device timeout\n"); 957 958 /* 959 * Try to clear stall first, also if other 960 * errors occur, hence clearing stall 961 * introduces a 50 ms delay: 962 */ 963 usbd_xfer_set_stall(xfer); 964 goto tr_setup; 965 } 966 break; 967 } 968} 969 970static void 971rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 972{ 973 struct rum_softc *sc = usbd_xfer_softc(xfer); 974 struct ieee80211com *ic = &sc->sc_ic; 975 struct ieee80211_frame_min *wh; 976 struct ieee80211_node *ni; 977 struct mbuf *m = NULL; 978 struct usb_page_cache *pc; 979 uint32_t flags; 980 uint8_t rssi = 0; 981 int len; 982 983 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 984 985 switch (USB_GET_STATE(xfer)) { 986 case USB_ST_TRANSFERRED: 987 988 DPRINTFN(15, "rx done, actlen=%d\n", len); 989 990 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 991 DPRINTF("%s: xfer too short %d\n", 992 device_get_nameunit(sc->sc_dev), len); 993 counter_u64_add(ic->ic_ierrors, 1); 994 goto tr_setup; 995 } 996 997 len -= RT2573_RX_DESC_SIZE; 998 pc = usbd_xfer_get_frame(xfer, 0); 999 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 1000 1001 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 1002 flags = le32toh(sc->sc_rx_desc.flags); 1003 if (flags & RT2573_RX_CRC_ERROR) { 1004 /* 1005 * This should not happen since we did not 1006 * request to receive those frames when we 1007 * filled RUM_TXRX_CSR2: 1008 */ 1009 DPRINTFN(5, "PHY or CRC error\n"); 1010 counter_u64_add(ic->ic_ierrors, 1); 1011 goto tr_setup; 1012 } 1013 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) { 1014 switch (flags & RT2573_RX_DEC_MASK) { 1015 case RT2573_RX_IV_ERROR: 1016 DPRINTFN(5, "IV/EIV error\n"); 1017 break; 1018 case RT2573_RX_MIC_ERROR: 1019 DPRINTFN(5, "MIC error\n"); 1020 break; 1021 case RT2573_RX_KEY_ERROR: 1022 DPRINTFN(5, "Key error\n"); 1023 break; 1024 } 1025 counter_u64_add(ic->ic_ierrors, 1); 1026 goto tr_setup; 1027 } 1028 1029 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1030 if (m == NULL) { 1031 DPRINTF("could not allocate mbuf\n"); 1032 counter_u64_add(ic->ic_ierrors, 1); 1033 goto tr_setup; 1034 } 1035 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 1036 mtod(m, uint8_t *), len); 1037 1038 wh = mtod(m, struct ieee80211_frame_min *); 1039 1040 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1041 (flags & RT2573_RX_CIP_MASK) != 1042 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) { 1043 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 1044 m->m_flags |= M_WEP; 1045 } 1046 1047 /* finalize mbuf */ 1048 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 1049 1050 if (ieee80211_radiotap_active(ic)) { 1051 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 1052 1053 tap->wr_flags = 0; 1054 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 1055 (flags & RT2573_RX_OFDM) ? 1056 IEEE80211_T_OFDM : IEEE80211_T_CCK); 1057 rum_get_tsf(sc, &tap->wr_tsf); 1058 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 1059 tap->wr_antnoise = RT2573_NOISE_FLOOR; 1060 tap->wr_antenna = sc->rx_ant; 1061 } 1062 /* FALLTHROUGH */ 1063 case USB_ST_SETUP: 1064tr_setup: 1065 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1066 usbd_transfer_submit(xfer); 1067 1068 /* 1069 * At the end of a USB callback it is always safe to unlock 1070 * the private mutex of a device! That is why we do the 1071 * "ieee80211_input" here, and not some lines up! 1072 */ 1073 RUM_UNLOCK(sc); 1074 if (m) { 1075 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1076 ni = ieee80211_find_rxnode(ic, wh); 1077 else 1078 ni = NULL; 1079 1080 if (ni != NULL) { 1081 (void) ieee80211_input(ni, m, rssi, 1082 RT2573_NOISE_FLOOR); 1083 ieee80211_free_node(ni); 1084 } else 1085 (void) ieee80211_input_all(ic, m, rssi, 1086 RT2573_NOISE_FLOOR); 1087 } 1088 RUM_LOCK(sc); 1089 rum_start(sc); 1090 return; 1091 1092 default: /* Error */ 1093 if (error != USB_ERR_CANCELLED) { 1094 /* try to clear stall first */ 1095 usbd_xfer_set_stall(xfer); 1096 goto tr_setup; 1097 } 1098 return; 1099 } 1100} 1101 1102static uint8_t 1103rum_plcp_signal(int rate) 1104{ 1105 switch (rate) { 1106 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1107 case 12: return 0xb; 1108 case 18: return 0xf; 1109 case 24: return 0xa; 1110 case 36: return 0xe; 1111 case 48: return 0x9; 1112 case 72: return 0xd; 1113 case 96: return 0x8; 1114 case 108: return 0xc; 1115 1116 /* CCK rates (NB: not IEEE std, device-specific) */ 1117 case 2: return 0x0; 1118 case 4: return 0x1; 1119 case 11: return 0x2; 1120 case 22: return 0x3; 1121 } 1122 return 0xff; /* XXX unsupported/unknown rate */ 1123} 1124 1125/* 1126 * Map net80211 cipher to RT2573 security mode. 1127 */ 1128static uint8_t 1129rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen) 1130{ 1131 switch (cipher) { 1132 case IEEE80211_CIPHER_WEP: 1133 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104); 1134 case IEEE80211_CIPHER_TKIP: 1135 return RT2573_MODE_TKIP; 1136 case IEEE80211_CIPHER_AES_CCM: 1137 return RT2573_MODE_AES_CCMP; 1138 default: 1139 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1140 return 0; 1141 } 1142} 1143 1144static void 1145rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1146 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid, 1147 int hdrlen, int len, int rate) 1148{ 1149 struct ieee80211com *ic = &sc->sc_ic; 1150 struct wmeParams *wmep = &sc->wme_params[qid]; 1151 uint16_t plcp_length; 1152 int remainder; 1153 1154 flags |= RT2573_TX_VALID; 1155 flags |= len << 16; 1156 1157 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1158 const struct ieee80211_cipher *cip = k->wk_cipher; 1159 1160 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen; 1161 1162 desc->eiv = 0; /* for WEP */ 1163 cip->ic_setiv(k, (uint8_t *)&desc->iv); 1164 } 1165 1166 /* setup PLCP fields */ 1167 desc->plcp_signal = rum_plcp_signal(rate); 1168 desc->plcp_service = 4; 1169 1170 len += IEEE80211_CRC_LEN; 1171 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1172 flags |= RT2573_TX_OFDM; 1173 1174 plcp_length = len & 0xfff; 1175 desc->plcp_length_hi = plcp_length >> 6; 1176 desc->plcp_length_lo = plcp_length & 0x3f; 1177 } else { 1178 if (rate == 0) 1179 rate = 2; /* avoid division by zero */ 1180 plcp_length = (16 * len + rate - 1) / rate; 1181 if (rate == 22) { 1182 remainder = (16 * len) % 22; 1183 if (remainder != 0 && remainder < 7) 1184 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1185 } 1186 desc->plcp_length_hi = plcp_length >> 8; 1187 desc->plcp_length_lo = plcp_length & 0xff; 1188 1189 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1190 desc->plcp_signal |= 0x08; 1191 } 1192 1193 desc->flags = htole32(flags); 1194 desc->hdrlen = hdrlen; 1195 desc->xflags = xflags; 1196 1197 desc->wme = htole16(RT2573_QID(qid) | 1198 RT2573_AIFSN(wmep->wmep_aifsn) | 1199 RT2573_LOGCWMIN(wmep->wmep_logcwmin) | 1200 RT2573_LOGCWMAX(wmep->wmep_logcwmax)); 1201} 1202 1203static int 1204rum_sendprot(struct rum_softc *sc, 1205 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1206{ 1207 struct ieee80211com *ic = ni->ni_ic; 1208 const struct ieee80211_frame *wh; 1209 struct rum_tx_data *data; 1210 struct mbuf *mprot; 1211 int protrate, pktlen, flags, isshort; 1212 uint16_t dur; 1213 1214 RUM_LOCK_ASSERT(sc); 1215 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1216 ("protection %d", prot)); 1217 1218 wh = mtod(m, const struct ieee80211_frame *); 1219 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1220 1221 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1222 1223 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1224 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1225 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1226 flags = 0; 1227 if (prot == IEEE80211_PROT_RTSCTS) { 1228 /* NB: CTS is the same size as an ACK */ 1229 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1230 flags |= RT2573_TX_NEED_ACK; 1231 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1232 } else { 1233 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1234 } 1235 if (mprot == NULL) { 1236 /* XXX stat + msg */ 1237 return (ENOBUFS); 1238 } 1239 data = STAILQ_FIRST(&sc->tx_free); 1240 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1241 sc->tx_nfree--; 1242 1243 data->m = mprot; 1244 data->ni = ieee80211_ref_node(ni); 1245 data->rate = protrate; 1246 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0, 1247 mprot->m_pkthdr.len, protrate); 1248 1249 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1250 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1251 1252 return 0; 1253} 1254 1255static uint32_t 1256rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni, 1257 const struct ieee80211_key *k) 1258{ 1259 struct ieee80211vap *vap = ni->ni_vap; 1260 u_int cipher; 1261 uint32_t flags = 0; 1262 uint8_t mode, pos; 1263 1264 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1265 cipher = k->wk_cipher->ic_cipher; 1266 pos = k->wk_keyix; 1267 mode = rum_crypto_mode(sc, cipher, k->wk_keylen); 1268 if (mode == 0) 1269 return 0; 1270 1271 flags |= RT2573_TX_CIP_MODE(mode); 1272 1273 /* Do not trust GROUP flag */ 1274 if (!(k >= &vap->iv_nw_keys[0] && 1275 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) 1276 flags |= RT2573_TX_KEY_PAIR; 1277 else 1278 pos += 0 * RT2573_SKEY_MAX; /* vap id */ 1279 1280 flags |= RT2573_TX_KEY_ID(pos); 1281 1282 if (cipher == IEEE80211_CIPHER_TKIP) 1283 flags |= RT2573_TX_TKIPMIC; 1284 } 1285 1286 return flags; 1287} 1288 1289static int 1290rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1291{ 1292 struct ieee80211vap *vap = ni->ni_vap; 1293 struct ieee80211com *ic = &sc->sc_ic; 1294 struct rum_tx_data *data; 1295 struct ieee80211_frame *wh; 1296 const struct ieee80211_txparam *tp; 1297 struct ieee80211_key *k = NULL; 1298 uint32_t flags = 0; 1299 uint16_t dur; 1300 uint8_t ac, type, xflags = 0; 1301 int hdrlen; 1302 1303 RUM_LOCK_ASSERT(sc); 1304 1305 data = STAILQ_FIRST(&sc->tx_free); 1306 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1307 sc->tx_nfree--; 1308 1309 wh = mtod(m0, struct ieee80211_frame *); 1310 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1311 hdrlen = ieee80211_anyhdrsize(wh); 1312 ac = M_WME_GETAC(m0); 1313 1314 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1315 k = ieee80211_crypto_get_txkey(ni, m0); 1316 if (k == NULL) 1317 return (ENOENT); 1318 1319 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1320 !k->wk_cipher->ic_encap(k, m0)) 1321 return (ENOBUFS); 1322 1323 wh = mtod(m0, struct ieee80211_frame *); 1324 } 1325 1326 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1327 1328 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1329 flags |= RT2573_TX_NEED_ACK; 1330 1331 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1332 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1333 USETW(wh->i_dur, dur); 1334 1335 /* tell hardware to add timestamp for probe responses */ 1336 if (type == IEEE80211_FC0_TYPE_MGT && 1337 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1338 IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1339 flags |= RT2573_TX_TIMESTAMP; 1340 } 1341 1342 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1343 xflags |= RT2573_TX_HWSEQ; 1344 1345 if (k != NULL) 1346 flags |= rum_tx_crypto_flags(sc, ni, k); 1347 1348 data->m = m0; 1349 data->ni = ni; 1350 data->rate = tp->mgmtrate; 1351 1352 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1353 m0->m_pkthdr.len, tp->mgmtrate); 1354 1355 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1356 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1357 1358 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1359 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1360 1361 return (0); 1362} 1363 1364static int 1365rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1366 const struct ieee80211_bpf_params *params) 1367{ 1368 struct ieee80211com *ic = ni->ni_ic; 1369 struct ieee80211_frame *wh; 1370 struct rum_tx_data *data; 1371 uint32_t flags; 1372 uint8_t ac, type, xflags = 0; 1373 int rate, error; 1374 1375 RUM_LOCK_ASSERT(sc); 1376 1377 wh = mtod(m0, struct ieee80211_frame *); 1378 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1379 1380 ac = params->ibp_pri & 3; 1381 1382 rate = params->ibp_rate0; 1383 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1384 return (EINVAL); 1385 1386 flags = 0; 1387 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1388 flags |= RT2573_TX_NEED_ACK; 1389 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1390 error = rum_sendprot(sc, m0, ni, 1391 params->ibp_flags & IEEE80211_BPF_RTS ? 1392 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1393 rate); 1394 if (error || sc->tx_nfree == 0) 1395 return (ENOBUFS); 1396 1397 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1398 } 1399 1400 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1401 xflags |= RT2573_TX_HWSEQ; 1402 1403 data = STAILQ_FIRST(&sc->tx_free); 1404 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1405 sc->tx_nfree--; 1406 1407 data->m = m0; 1408 data->ni = ni; 1409 data->rate = rate; 1410 1411 /* XXX need to setup descriptor ourself */ 1412 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0, 1413 m0->m_pkthdr.len, rate); 1414 1415 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1416 m0->m_pkthdr.len, rate); 1417 1418 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1419 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1420 1421 return 0; 1422} 1423 1424static int 1425rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1426{ 1427 struct ieee80211vap *vap = ni->ni_vap; 1428 struct ieee80211com *ic = &sc->sc_ic; 1429 struct rum_tx_data *data; 1430 struct ieee80211_frame *wh; 1431 const struct ieee80211_txparam *tp; 1432 struct ieee80211_key *k = NULL; 1433 uint32_t flags = 0; 1434 uint16_t dur; 1435 uint8_t ac, type, qos, xflags = 0; 1436 int error, hdrlen, rate; 1437 1438 RUM_LOCK_ASSERT(sc); 1439 1440 wh = mtod(m0, struct ieee80211_frame *); 1441 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1442 hdrlen = ieee80211_anyhdrsize(wh); 1443 1444 if (IEEE80211_QOS_HAS_SEQ(wh)) 1445 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 1446 else 1447 qos = 0; 1448 ac = M_WME_GETAC(m0); 1449 1450 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1451 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1452 rate = tp->mcastrate; 1453 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1454 rate = tp->ucastrate; 1455 else 1456 rate = ni->ni_txrate; 1457 1458 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1459 k = ieee80211_crypto_get_txkey(ni, m0); 1460 if (k == NULL) { 1461 m_freem(m0); 1462 return (ENOENT); 1463 } 1464 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1465 !k->wk_cipher->ic_encap(k, m0)) { 1466 m_freem(m0); 1467 return (ENOBUFS); 1468 } 1469 1470 /* packet header may have moved, reset our local pointer */ 1471 wh = mtod(m0, struct ieee80211_frame *); 1472 } 1473 1474 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1475 xflags |= RT2573_TX_HWSEQ; 1476 1477 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1478 int prot = IEEE80211_PROT_NONE; 1479 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1480 prot = IEEE80211_PROT_RTSCTS; 1481 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1482 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1483 prot = ic->ic_protmode; 1484 if (prot != IEEE80211_PROT_NONE) { 1485 error = rum_sendprot(sc, m0, ni, prot, rate); 1486 if (error || sc->tx_nfree == 0) { 1487 m_freem(m0); 1488 return ENOBUFS; 1489 } 1490 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1491 } 1492 } 1493 1494 if (k != NULL) 1495 flags |= rum_tx_crypto_flags(sc, ni, k); 1496 1497 data = STAILQ_FIRST(&sc->tx_free); 1498 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1499 sc->tx_nfree--; 1500 1501 data->m = m0; 1502 data->ni = ni; 1503 data->rate = rate; 1504 1505 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1506 /* Unicast frame, check if an ACK is expected. */ 1507 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 1508 IEEE80211_QOS_ACKPOLICY_NOACK) 1509 flags |= RT2573_TX_NEED_ACK; 1510 1511 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1512 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1513 USETW(wh->i_dur, dur); 1514 } 1515 1516 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1517 m0->m_pkthdr.len, rate); 1518 1519 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1520 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1521 1522 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1523 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1524 1525 return 0; 1526} 1527 1528static int 1529rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1530{ 1531 struct rum_softc *sc = ic->ic_softc; 1532 int error; 1533 1534 RUM_LOCK(sc); 1535 if (!sc->sc_running) { 1536 RUM_UNLOCK(sc); 1537 return (ENXIO); 1538 } 1539 error = mbufq_enqueue(&sc->sc_snd, m); 1540 if (error) { 1541 RUM_UNLOCK(sc); 1542 return (error); 1543 } 1544 rum_start(sc); 1545 RUM_UNLOCK(sc); 1546 1547 return (0); 1548} 1549 1550static void 1551rum_start(struct rum_softc *sc) 1552{ 1553 struct ieee80211_node *ni; 1554 struct mbuf *m; 1555 1556 RUM_LOCK_ASSERT(sc); 1557 1558 if (!sc->sc_running) 1559 return; 1560 1561 while (sc->tx_nfree >= RUM_TX_MINFREE && 1562 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1563 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1564 if (rum_tx_data(sc, m, ni) != 0) { 1565 if_inc_counter(ni->ni_vap->iv_ifp, 1566 IFCOUNTER_OERRORS, 1); 1567 ieee80211_free_node(ni); 1568 break; 1569 } 1570 } 1571} 1572 1573static void 1574rum_parent(struct ieee80211com *ic) 1575{ 1576 struct rum_softc *sc = ic->ic_softc; 1577 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1578 1579 RUM_LOCK(sc); 1580 if (sc->sc_detached) { 1581 RUM_UNLOCK(sc); 1582 return; 1583 } 1584 RUM_UNLOCK(sc); 1585 1586 if (ic->ic_nrunning > 0) { 1587 if (rum_init(sc) == 0) 1588 ieee80211_start_all(ic); 1589 else 1590 ieee80211_stop(vap); 1591 } else 1592 rum_stop(sc); 1593} 1594 1595static void 1596rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1597{ 1598 struct usb_device_request req; 1599 usb_error_t error; 1600 1601 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1602 req.bRequest = RT2573_READ_EEPROM; 1603 USETW(req.wValue, 0); 1604 USETW(req.wIndex, addr); 1605 USETW(req.wLength, len); 1606 1607 error = rum_do_request(sc, &req, buf); 1608 if (error != 0) { 1609 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1610 usbd_errstr(error)); 1611 } 1612} 1613 1614static uint32_t 1615rum_read(struct rum_softc *sc, uint16_t reg) 1616{ 1617 uint32_t val; 1618 1619 rum_read_multi(sc, reg, &val, sizeof val); 1620 1621 return le32toh(val); 1622} 1623 1624static void 1625rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1626{ 1627 struct usb_device_request req; 1628 usb_error_t error; 1629 1630 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1631 req.bRequest = RT2573_READ_MULTI_MAC; 1632 USETW(req.wValue, 0); 1633 USETW(req.wIndex, reg); 1634 USETW(req.wLength, len); 1635 1636 error = rum_do_request(sc, &req, buf); 1637 if (error != 0) { 1638 device_printf(sc->sc_dev, 1639 "could not multi read MAC register: %s\n", 1640 usbd_errstr(error)); 1641 } 1642} 1643 1644static usb_error_t 1645rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1646{ 1647 uint32_t tmp = htole32(val); 1648 1649 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1650} 1651 1652static usb_error_t 1653rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1654{ 1655 struct usb_device_request req; 1656 usb_error_t error; 1657 size_t offset; 1658 1659 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1660 req.bRequest = RT2573_WRITE_MULTI_MAC; 1661 USETW(req.wValue, 0); 1662 1663 /* write at most 64 bytes at a time */ 1664 for (offset = 0; offset < len; offset += 64) { 1665 USETW(req.wIndex, reg + offset); 1666 USETW(req.wLength, MIN(len - offset, 64)); 1667 1668 error = rum_do_request(sc, &req, (char *)buf + offset); 1669 if (error != 0) { 1670 device_printf(sc->sc_dev, 1671 "could not multi write MAC register: %s\n", 1672 usbd_errstr(error)); 1673 return (error); 1674 } 1675 } 1676 1677 return (USB_ERR_NORMAL_COMPLETION); 1678} 1679 1680static usb_error_t 1681rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1682{ 1683 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1684} 1685 1686static usb_error_t 1687rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1688{ 1689 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1690} 1691 1692static usb_error_t 1693rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1694{ 1695 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1696} 1697 1698static int 1699rum_bbp_busy(struct rum_softc *sc) 1700{ 1701 int ntries; 1702 1703 for (ntries = 0; ntries < 100; ntries++) { 1704 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1705 break; 1706 if (rum_pause(sc, hz / 100)) 1707 break; 1708 } 1709 if (ntries == 100) 1710 return (ETIMEDOUT); 1711 1712 return (0); 1713} 1714 1715static void 1716rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1717{ 1718 uint32_t tmp; 1719 1720 DPRINTFN(2, "reg=0x%08x\n", reg); 1721 1722 if (rum_bbp_busy(sc) != 0) { 1723 device_printf(sc->sc_dev, "could not write to BBP\n"); 1724 return; 1725 } 1726 1727 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1728 rum_write(sc, RT2573_PHY_CSR3, tmp); 1729} 1730 1731static uint8_t 1732rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1733{ 1734 uint32_t val; 1735 int ntries; 1736 1737 DPRINTFN(2, "reg=0x%08x\n", reg); 1738 1739 if (rum_bbp_busy(sc) != 0) { 1740 device_printf(sc->sc_dev, "could not read BBP\n"); 1741 return 0; 1742 } 1743 1744 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1745 rum_write(sc, RT2573_PHY_CSR3, val); 1746 1747 for (ntries = 0; ntries < 100; ntries++) { 1748 val = rum_read(sc, RT2573_PHY_CSR3); 1749 if (!(val & RT2573_BBP_BUSY)) 1750 return val & 0xff; 1751 if (rum_pause(sc, hz / 100)) 1752 break; 1753 } 1754 1755 device_printf(sc->sc_dev, "could not read BBP\n"); 1756 return 0; 1757} 1758 1759static void 1760rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1761{ 1762 uint32_t tmp; 1763 int ntries; 1764 1765 for (ntries = 0; ntries < 100; ntries++) { 1766 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1767 break; 1768 if (rum_pause(sc, hz / 100)) 1769 break; 1770 } 1771 if (ntries == 100) { 1772 device_printf(sc->sc_dev, "could not write to RF\n"); 1773 return; 1774 } 1775 1776 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1777 (reg & 3); 1778 rum_write(sc, RT2573_PHY_CSR4, tmp); 1779 1780 /* remember last written value in sc */ 1781 sc->rf_regs[reg] = val; 1782 1783 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1784} 1785 1786static void 1787rum_select_antenna(struct rum_softc *sc) 1788{ 1789 uint8_t bbp4, bbp77; 1790 uint32_t tmp; 1791 1792 bbp4 = rum_bbp_read(sc, 4); 1793 bbp77 = rum_bbp_read(sc, 77); 1794 1795 /* TBD */ 1796 1797 /* make sure Rx is disabled before switching antenna */ 1798 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1799 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1800 1801 rum_bbp_write(sc, 4, bbp4); 1802 rum_bbp_write(sc, 77, bbp77); 1803 1804 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1805} 1806 1807/* 1808 * Enable multi-rate retries for frames sent at OFDM rates. 1809 * In 802.11b/g mode, allow fallback to CCK rates. 1810 */ 1811static void 1812rum_enable_mrr(struct rum_softc *sc) 1813{ 1814 struct ieee80211com *ic = &sc->sc_ic; 1815 1816 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1817 rum_setbits(sc, RT2573_TXRX_CSR4, 1818 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1819 } else { 1820 rum_modbits(sc, RT2573_TXRX_CSR4, 1821 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1822 } 1823} 1824 1825static void 1826rum_set_txpreamble(struct rum_softc *sc) 1827{ 1828 struct ieee80211com *ic = &sc->sc_ic; 1829 1830 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1831 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1832 else 1833 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1834} 1835 1836static void 1837rum_set_basicrates(struct rum_softc *sc) 1838{ 1839 struct ieee80211com *ic = &sc->sc_ic; 1840 1841 /* update basic rate set */ 1842 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1843 /* 11b basic rates: 1, 2Mbps */ 1844 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1845 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1846 /* 11a basic rates: 6, 12, 24Mbps */ 1847 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1848 } else { 1849 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1850 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1851 } 1852} 1853 1854/* 1855 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1856 * driver. 1857 */ 1858static void 1859rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1860{ 1861 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1862 1863 /* update all BBP registers that depend on the band */ 1864 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1865 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1866 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1867 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1868 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1869 } 1870 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1871 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1872 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1873 } 1874 1875 sc->bbp17 = bbp17; 1876 rum_bbp_write(sc, 17, bbp17); 1877 rum_bbp_write(sc, 96, bbp96); 1878 rum_bbp_write(sc, 104, bbp104); 1879 1880 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1881 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1882 rum_bbp_write(sc, 75, 0x80); 1883 rum_bbp_write(sc, 86, 0x80); 1884 rum_bbp_write(sc, 88, 0x80); 1885 } 1886 1887 rum_bbp_write(sc, 35, bbp35); 1888 rum_bbp_write(sc, 97, bbp97); 1889 rum_bbp_write(sc, 98, bbp98); 1890 1891 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1892 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1893 RT2573_PA_PE_5GHZ); 1894 } else { 1895 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1896 RT2573_PA_PE_2GHZ); 1897 } 1898} 1899 1900static void 1901rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1902{ 1903 struct ieee80211com *ic = &sc->sc_ic; 1904 const struct rfprog *rfprog; 1905 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1906 int8_t power; 1907 int i, chan; 1908 1909 chan = ieee80211_chan2ieee(ic, c); 1910 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1911 return; 1912 1913 /* select the appropriate RF settings based on what EEPROM says */ 1914 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1915 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1916 1917 /* find the settings for this channel (we know it exists) */ 1918 for (i = 0; rfprog[i].chan != chan; i++); 1919 1920 power = sc->txpow[i]; 1921 if (power < 0) { 1922 bbp94 += power; 1923 power = 0; 1924 } else if (power > 31) { 1925 bbp94 += power - 31; 1926 power = 31; 1927 } 1928 1929 /* 1930 * If we are switching from the 2GHz band to the 5GHz band or 1931 * vice-versa, BBP registers need to be reprogrammed. 1932 */ 1933 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1934 rum_select_band(sc, c); 1935 rum_select_antenna(sc); 1936 } 1937 ic->ic_curchan = c; 1938 1939 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1940 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1941 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1942 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1943 1944 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1945 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1946 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1947 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1948 1949 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1950 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1951 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1952 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1953 1954 rum_pause(sc, hz / 100); 1955 1956 /* enable smart mode for MIMO-capable RFs */ 1957 bbp3 = rum_bbp_read(sc, 3); 1958 1959 bbp3 &= ~RT2573_SMART_MODE; 1960 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1961 bbp3 |= RT2573_SMART_MODE; 1962 1963 rum_bbp_write(sc, 3, bbp3); 1964 1965 if (bbp94 != RT2573_BBPR94_DEFAULT) 1966 rum_bbp_write(sc, 94, bbp94); 1967 1968 /* give the chip some extra time to do the switchover */ 1969 rum_pause(sc, hz / 100); 1970} 1971 1972static void 1973rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap) 1974{ 1975 const struct ieee80211_txparam *tp; 1976 struct ieee80211_node *ni = vap->iv_bss; 1977 struct rum_vap *rvp = RUM_VAP(vap); 1978 1979 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1980 rvp->maxretry = tp->maxretry < 0xf ? tp->maxretry : 0xf; 1981 1982 rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) | 1983 RT2573_LONG_RETRY(rvp->maxretry), 1984 RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK); 1985} 1986 1987/* 1988 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1989 * and HostAP operating modes. 1990 */ 1991static int 1992rum_enable_tsf_sync(struct rum_softc *sc) 1993{ 1994 struct ieee80211com *ic = &sc->sc_ic; 1995 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1996 uint32_t tmp; 1997 1998 if (vap->iv_opmode != IEEE80211_M_STA) { 1999 /* 2000 * Change default 16ms TBTT adjustment to 8ms. 2001 * Must be done before enabling beacon generation. 2002 */ 2003 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 2004 return EIO; 2005 } 2006 2007 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 2008 2009 /* set beacon interval (in 1/16ms unit) */ 2010 tmp |= vap->iv_bss->ni_intval * 16; 2011 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 2012 2013 switch (vap->iv_opmode) { 2014 case IEEE80211_M_STA: 2015 /* 2016 * Local TSF is always updated with remote TSF on beacon 2017 * reception. 2018 */ 2019 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 2020 break; 2021 case IEEE80211_M_IBSS: 2022 /* 2023 * Local TSF is updated with remote TSF on beacon reception 2024 * only if the remote TSF is greater than local TSF. 2025 */ 2026 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 2027 tmp |= RT2573_BCN_TX_EN; 2028 break; 2029 case IEEE80211_M_HOSTAP: 2030 /* SYNC with nobody */ 2031 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 2032 tmp |= RT2573_BCN_TX_EN; 2033 break; 2034 default: 2035 device_printf(sc->sc_dev, 2036 "Enabling TSF failed. undefined opmode %d\n", 2037 vap->iv_opmode); 2038 return EINVAL; 2039 } 2040 2041 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 2042 return EIO; 2043 2044 return 0; 2045} 2046 2047static void 2048rum_enable_tsf(struct rum_softc *sc) 2049{ 2050 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 2051 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 2052} 2053 2054static void 2055rum_abort_tsf_sync(struct rum_softc *sc) 2056{ 2057 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 2058} 2059 2060static void 2061rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 2062{ 2063 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 2064} 2065 2066static void 2067rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id) 2068{ 2069 struct ieee80211com *ic = &sc->sc_ic; 2070 uint8_t slottime; 2071 2072 slottime = IEEE80211_GET_SLOTTIME(ic); 2073 2074 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 2075 2076 DPRINTF("setting slot time to %uus\n", slottime); 2077} 2078 2079static void 2080rum_update_slot(struct ieee80211com *ic) 2081{ 2082 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb); 2083} 2084 2085static int 2086rum_wme_update(struct ieee80211com *ic) 2087{ 2088 const struct wmeParams *chanp = 2089 ic->ic_wme.wme_chanParams.cap_wmeParams; 2090 struct rum_softc *sc = ic->ic_softc; 2091 int error = 0; 2092 2093 RUM_LOCK(sc); 2094 error = rum_write(sc, RT2573_AIFSN_CSR, 2095 chanp[WME_AC_VO].wmep_aifsn << 12 | 2096 chanp[WME_AC_VI].wmep_aifsn << 8 | 2097 chanp[WME_AC_BK].wmep_aifsn << 4 | 2098 chanp[WME_AC_BE].wmep_aifsn); 2099 if (error) 2100 goto print_err; 2101 error = rum_write(sc, RT2573_CWMIN_CSR, 2102 chanp[WME_AC_VO].wmep_logcwmin << 12 | 2103 chanp[WME_AC_VI].wmep_logcwmin << 8 | 2104 chanp[WME_AC_BK].wmep_logcwmin << 4 | 2105 chanp[WME_AC_BE].wmep_logcwmin); 2106 if (error) 2107 goto print_err; 2108 error = rum_write(sc, RT2573_CWMAX_CSR, 2109 chanp[WME_AC_VO].wmep_logcwmax << 12 | 2110 chanp[WME_AC_VI].wmep_logcwmax << 8 | 2111 chanp[WME_AC_BK].wmep_logcwmax << 4 | 2112 chanp[WME_AC_BE].wmep_logcwmax); 2113 if (error) 2114 goto print_err; 2115 error = rum_write(sc, RT2573_TXOP01_CSR, 2116 chanp[WME_AC_BK].wmep_txopLimit << 16 | 2117 chanp[WME_AC_BE].wmep_txopLimit); 2118 if (error) 2119 goto print_err; 2120 error = rum_write(sc, RT2573_TXOP23_CSR, 2121 chanp[WME_AC_VO].wmep_txopLimit << 16 | 2122 chanp[WME_AC_VI].wmep_txopLimit); 2123 if (error) 2124 goto print_err; 2125 2126 memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC); 2127 2128print_err: 2129 RUM_UNLOCK(sc); 2130 if (error != 0) { 2131 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n", 2132 __func__, error); 2133 } 2134 2135 return (error); 2136} 2137 2138static void 2139rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 2140{ 2141 2142 rum_write(sc, RT2573_MAC_CSR4, 2143 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 2144 rum_write(sc, RT2573_MAC_CSR5, 2145 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 2146} 2147 2148static void 2149rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 2150{ 2151 2152 rum_write(sc, RT2573_MAC_CSR2, 2153 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 2154 rum_write(sc, RT2573_MAC_CSR3, 2155 addr[4] | addr[5] << 8 | 0xff << 16); 2156} 2157 2158static void 2159rum_setpromisc(struct rum_softc *sc) 2160{ 2161 struct ieee80211com *ic = &sc->sc_ic; 2162 2163 if (ic->ic_promisc == 0) 2164 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2165 else 2166 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2167 2168 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 2169 "entering" : "leaving"); 2170} 2171 2172static void 2173rum_update_promisc(struct ieee80211com *ic) 2174{ 2175 struct rum_softc *sc = ic->ic_softc; 2176 2177 RUM_LOCK(sc); 2178 if (sc->sc_running) 2179 rum_setpromisc(sc); 2180 RUM_UNLOCK(sc); 2181} 2182 2183static void 2184rum_update_mcast(struct ieee80211com *ic) 2185{ 2186 /* Ignore. */ 2187} 2188 2189static const char * 2190rum_get_rf(int rev) 2191{ 2192 switch (rev) { 2193 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 2194 case RT2573_RF_2528: return "RT2528"; 2195 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 2196 case RT2573_RF_5226: return "RT5226"; 2197 default: return "unknown"; 2198 } 2199} 2200 2201static void 2202rum_read_eeprom(struct rum_softc *sc) 2203{ 2204 uint16_t val; 2205#ifdef RUM_DEBUG 2206 int i; 2207#endif 2208 2209 /* read MAC address */ 2210 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 2211 2212 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 2213 val = le16toh(val); 2214 sc->rf_rev = (val >> 11) & 0x1f; 2215 sc->hw_radio = (val >> 10) & 0x1; 2216 sc->rx_ant = (val >> 4) & 0x3; 2217 sc->tx_ant = (val >> 2) & 0x3; 2218 sc->nb_ant = val & 0x3; 2219 2220 DPRINTF("RF revision=%d\n", sc->rf_rev); 2221 2222 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 2223 val = le16toh(val); 2224 sc->ext_5ghz_lna = (val >> 6) & 0x1; 2225 sc->ext_2ghz_lna = (val >> 4) & 0x1; 2226 2227 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 2228 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 2229 2230 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 2231 val = le16toh(val); 2232 if ((val & 0xff) != 0xff) 2233 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 2234 2235 /* Only [-10, 10] is valid */ 2236 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 2237 sc->rssi_2ghz_corr = 0; 2238 2239 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 2240 val = le16toh(val); 2241 if ((val & 0xff) != 0xff) 2242 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 2243 2244 /* Only [-10, 10] is valid */ 2245 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 2246 sc->rssi_5ghz_corr = 0; 2247 2248 if (sc->ext_2ghz_lna) 2249 sc->rssi_2ghz_corr -= 14; 2250 if (sc->ext_5ghz_lna) 2251 sc->rssi_5ghz_corr -= 14; 2252 2253 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2254 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2255 2256 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2257 val = le16toh(val); 2258 if ((val & 0xff) != 0xff) 2259 sc->rffreq = val & 0xff; 2260 2261 DPRINTF("RF freq=%d\n", sc->rffreq); 2262 2263 /* read Tx power for all a/b/g channels */ 2264 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2265 /* XXX default Tx power for 802.11a channels */ 2266 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2267#ifdef RUM_DEBUG 2268 for (i = 0; i < 14; i++) 2269 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2270#endif 2271 2272 /* read default values for BBP registers */ 2273 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2274#ifdef RUM_DEBUG 2275 for (i = 0; i < 14; i++) { 2276 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2277 continue; 2278 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2279 sc->bbp_prom[i].val); 2280 } 2281#endif 2282} 2283 2284static int 2285rum_bbp_wakeup(struct rum_softc *sc) 2286{ 2287 unsigned int ntries; 2288 2289 for (ntries = 0; ntries < 100; ntries++) { 2290 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2291 break; 2292 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2293 if (rum_pause(sc, hz / 100)) 2294 break; 2295 } 2296 if (ntries == 100) { 2297 device_printf(sc->sc_dev, 2298 "timeout waiting for BBP/RF to wakeup\n"); 2299 return (ETIMEDOUT); 2300 } 2301 2302 return (0); 2303} 2304 2305static int 2306rum_bbp_init(struct rum_softc *sc) 2307{ 2308 int i, ntries; 2309 2310 /* wait for BBP to be ready */ 2311 for (ntries = 0; ntries < 100; ntries++) { 2312 const uint8_t val = rum_bbp_read(sc, 0); 2313 if (val != 0 && val != 0xff) 2314 break; 2315 if (rum_pause(sc, hz / 100)) 2316 break; 2317 } 2318 if (ntries == 100) { 2319 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2320 return EIO; 2321 } 2322 2323 /* initialize BBP registers to default values */ 2324 for (i = 0; i < nitems(rum_def_bbp); i++) 2325 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2326 2327 /* write vendor-specific BBP values (from EEPROM) */ 2328 for (i = 0; i < 16; i++) { 2329 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2330 continue; 2331 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2332 } 2333 2334 return 0; 2335} 2336 2337static void 2338rum_clr_shkey_regs(struct rum_softc *sc) 2339{ 2340 rum_write(sc, RT2573_SEC_CSR0, 0); 2341 rum_write(sc, RT2573_SEC_CSR1, 0); 2342 rum_write(sc, RT2573_SEC_CSR5, 0); 2343} 2344 2345static int 2346rum_init(struct rum_softc *sc) 2347{ 2348 struct ieee80211com *ic = &sc->sc_ic; 2349 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2350 uint32_t tmp; 2351 int i, ret; 2352 2353 RUM_LOCK(sc); 2354 if (sc->sc_running) { 2355 ret = 0; 2356 goto end; 2357 } 2358 2359 /* initialize MAC registers to default values */ 2360 for (i = 0; i < nitems(rum_def_mac); i++) 2361 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2362 2363 /* reset some WME parameters to default values */ 2364 sc->wme_params[0].wmep_aifsn = 2; 2365 sc->wme_params[0].wmep_logcwmin = 4; 2366 sc->wme_params[0].wmep_logcwmax = 10; 2367 2368 /* set host ready */ 2369 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2370 rum_write(sc, RT2573_MAC_CSR1, 0); 2371 2372 /* wait for BBP/RF to wakeup */ 2373 if ((ret = rum_bbp_wakeup(sc)) != 0) 2374 goto end; 2375 2376 if ((ret = rum_bbp_init(sc)) != 0) 2377 goto end; 2378 2379 /* select default channel */ 2380 rum_select_band(sc, ic->ic_curchan); 2381 rum_select_antenna(sc); 2382 rum_set_chan(sc, ic->ic_curchan); 2383 2384 /* clear STA registers */ 2385 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2386 2387 /* clear security registers (if required) */ 2388 if (sc->sc_clr_shkeys == 0) { 2389 rum_clr_shkey_regs(sc); 2390 sc->sc_clr_shkeys = 1; 2391 } 2392 2393 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2394 2395 /* initialize ASIC */ 2396 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2397 2398 /* 2399 * Allocate Tx and Rx xfer queues. 2400 */ 2401 rum_setup_tx_list(sc); 2402 2403 /* update Rx filter */ 2404 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2405 2406 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2407 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2408 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2409 RT2573_DROP_ACKCTS; 2410 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2411 tmp |= RT2573_DROP_TODS; 2412 if (ic->ic_promisc == 0) 2413 tmp |= RT2573_DROP_NOT_TO_ME; 2414 } 2415 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2416 2417 sc->sc_running = 1; 2418 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2419 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2420 2421end: RUM_UNLOCK(sc); 2422 2423 if (ret != 0) 2424 rum_stop(sc); 2425 2426 return ret; 2427} 2428 2429static void 2430rum_stop(struct rum_softc *sc) 2431{ 2432 2433 RUM_LOCK(sc); 2434 if (!sc->sc_running) { 2435 RUM_UNLOCK(sc); 2436 return; 2437 } 2438 sc->sc_running = 0; 2439 RUM_UNLOCK(sc); 2440 2441 /* 2442 * Drain the USB transfers, if not already drained: 2443 */ 2444 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2445 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2446 2447 RUM_LOCK(sc); 2448 rum_unsetup_tx_list(sc); 2449 2450 /* disable Rx */ 2451 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2452 2453 /* reset ASIC */ 2454 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2455 rum_write(sc, RT2573_MAC_CSR1, 0); 2456 RUM_UNLOCK(sc); 2457} 2458 2459static void 2460rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2461{ 2462 struct usb_device_request req; 2463 uint16_t reg = RT2573_MCU_CODE_BASE; 2464 usb_error_t err; 2465 2466 /* copy firmware image into NIC */ 2467 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2468 err = rum_write(sc, reg, UGETDW(ucode)); 2469 if (err) { 2470 /* firmware already loaded ? */ 2471 device_printf(sc->sc_dev, "Firmware load " 2472 "failure! (ignored)\n"); 2473 break; 2474 } 2475 } 2476 2477 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2478 req.bRequest = RT2573_MCU_CNTL; 2479 USETW(req.wValue, RT2573_MCU_RUN); 2480 USETW(req.wIndex, 0); 2481 USETW(req.wLength, 0); 2482 2483 err = rum_do_request(sc, &req, NULL); 2484 if (err != 0) { 2485 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2486 usbd_errstr(err)); 2487 } 2488 2489 /* give the chip some time to boot */ 2490 rum_pause(sc, hz / 8); 2491} 2492 2493static int 2494rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2495{ 2496 struct ieee80211com *ic = vap->iv_ic; 2497 struct rum_vap *rvp = RUM_VAP(vap); 2498 struct mbuf *m = rvp->bcn_mbuf; 2499 const struct ieee80211_txparam *tp; 2500 struct rum_tx_desc desc; 2501 2502 RUM_LOCK_ASSERT(sc); 2503 2504 if (m == NULL) 2505 return EINVAL; 2506 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2507 return EINVAL; 2508 2509 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2510 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP, 2511 RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate); 2512 2513 /* copy the Tx descriptor into NIC memory */ 2514 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2515 RT2573_TX_DESC_SIZE) != 0) 2516 return EIO; 2517 2518 /* copy beacon header and payload into NIC memory */ 2519 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2520 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2521 return EIO; 2522 2523 return 0; 2524} 2525 2526static int 2527rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2528{ 2529 struct rum_vap *rvp = RUM_VAP(vap); 2530 struct ieee80211_node *ni = vap->iv_bss; 2531 struct mbuf *m; 2532 2533 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2534 return EINVAL; 2535 2536 m = ieee80211_beacon_alloc(ni); 2537 if (m == NULL) 2538 return ENOMEM; 2539 2540 if (rvp->bcn_mbuf != NULL) 2541 m_freem(rvp->bcn_mbuf); 2542 2543 rvp->bcn_mbuf = m; 2544 2545 return (rum_set_beacon(sc, vap)); 2546} 2547 2548static void 2549rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data, 2550 uint8_t rvp_id) 2551{ 2552 struct ieee80211vap *vap = data->vap; 2553 2554 rum_set_beacon(sc, vap); 2555} 2556 2557static void 2558rum_update_beacon(struct ieee80211vap *vap, int item) 2559{ 2560 struct ieee80211com *ic = vap->iv_ic; 2561 struct rum_softc *sc = ic->ic_softc; 2562 struct rum_vap *rvp = RUM_VAP(vap); 2563 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 2564 struct ieee80211_node *ni = vap->iv_bss; 2565 struct mbuf *m = rvp->bcn_mbuf; 2566 int mcast = 0; 2567 2568 RUM_LOCK(sc); 2569 if (m == NULL) { 2570 m = ieee80211_beacon_alloc(ni); 2571 if (m == NULL) { 2572 device_printf(sc->sc_dev, 2573 "%s: could not allocate beacon frame\n", __func__); 2574 RUM_UNLOCK(sc); 2575 return; 2576 } 2577 rvp->bcn_mbuf = m; 2578 } 2579 2580 switch (item) { 2581 case IEEE80211_BEACON_ERP: 2582 rum_update_slot(ic); 2583 break; 2584 case IEEE80211_BEACON_TIM: 2585 mcast = 1; /*TODO*/ 2586 break; 2587 default: 2588 break; 2589 } 2590 RUM_UNLOCK(sc); 2591 2592 setbit(bo->bo_flags, item); 2593 ieee80211_beacon_update(ni, m, mcast); 2594 2595 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb); 2596} 2597 2598static int 2599rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k, 2600 uint16_t base) 2601{ 2602 2603 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen)) 2604 return EIO; 2605 2606 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) { 2607 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE, 2608 k->wk_txmic, 8)) 2609 return EIO; 2610 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8, 2611 k->wk_rxmic, 8)) 2612 return EIO; 2613 } 2614 2615 return 0; 2616} 2617 2618static void 2619rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data, 2620 uint8_t rvp_id) 2621{ 2622 struct ieee80211_key *k = &data->key; 2623 uint8_t mode; 2624 2625 if (sc->sc_clr_shkeys == 0) { 2626 rum_clr_shkey_regs(sc); 2627 sc->sc_clr_shkeys = 1; 2628 } 2629 2630 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2631 if (mode == 0) 2632 goto print_err; 2633 2634 DPRINTFN(1, "setting group key %d for vap %d, mode %d " 2635 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2636 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2637 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2638 2639 /* Install the key. */ 2640 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0) 2641 goto print_err; 2642 2643 /* Set cipher mode. */ 2644 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2645 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX, 2646 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX) 2647 != 0) 2648 goto print_err; 2649 2650 /* Mark this key as valid. */ 2651 if (rum_setbits(sc, RT2573_SEC_CSR0, 2652 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0) 2653 goto print_err; 2654 2655 return; 2656 2657print_err: 2658 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n", 2659 __func__, k->wk_keyix, rvp_id); 2660} 2661 2662static void 2663rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data, 2664 uint8_t rvp_id) 2665{ 2666 struct ieee80211_key *k = &data->key; 2667 2668 DPRINTF("%s: removing group key %d for vap %d\n", __func__, 2669 k->wk_keyix, rvp_id); 2670 rum_clrbits(sc, 2671 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2672 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX); 2673 rum_clrbits(sc, RT2573_SEC_CSR0, 2674 rvp_id * RT2573_SKEY_MAX + k->wk_keyix); 2675} 2676 2677static void 2678rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data, 2679 uint8_t rvp_id) 2680{ 2681 struct ieee80211_key *k = &data->key; 2682 uint8_t buf[IEEE80211_ADDR_LEN + 1]; 2683 uint8_t mode; 2684 2685 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2686 if (mode == 0) 2687 goto print_err; 2688 2689 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d " 2690 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2691 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2692 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2693 2694 /* Install the key. */ 2695 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0) 2696 goto print_err; 2697 2698 IEEE80211_ADDR_COPY(buf, k->wk_macaddr); 2699 buf[IEEE80211_ADDR_LEN] = mode; 2700 2701 /* Set transmitter address and cipher mode. */ 2702 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix), 2703 buf, sizeof buf) != 0) 2704 goto print_err; 2705 2706 /* Enable key table lookup for this vap. */ 2707 if (sc->vap_key_count[rvp_id]++ == 0) 2708 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0) 2709 goto print_err; 2710 2711 /* Mark this key as valid. */ 2712 if (rum_setbits(sc, 2713 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2714 1 << (k->wk_keyix % 32)) != 0) 2715 goto print_err; 2716 2717 return; 2718 2719print_err: 2720 device_printf(sc->sc_dev, 2721 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix, 2722 rvp_id); 2723} 2724 2725static void 2726rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data, 2727 uint8_t rvp_id) 2728{ 2729 struct ieee80211_key *k = &data->key; 2730 2731 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix); 2732 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2733 1 << (k->wk_keyix % 32)); 2734 sc->keys_bmap &= ~(1 << k->wk_keyix); 2735 if (--sc->vap_key_count[rvp_id] == 0) 2736 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id); 2737} 2738 2739static int 2740rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 2741 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 2742{ 2743 struct rum_softc *sc = vap->iv_ic->ic_softc; 2744 uint8_t i; 2745 2746 if (!(&vap->iv_nw_keys[0] <= k && 2747 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 2748 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 2749 RUM_LOCK(sc); 2750 for (i = 0; i < RT2573_ADDR_MAX; i++) { 2751 if ((sc->keys_bmap & (1 << i)) == 0) { 2752 sc->keys_bmap |= 1 << i; 2753 *keyix = i; 2754 break; 2755 } 2756 } 2757 RUM_UNLOCK(sc); 2758 if (i == RT2573_ADDR_MAX) { 2759 device_printf(sc->sc_dev, 2760 "%s: no free space in the key table\n", 2761 __func__); 2762 return 0; 2763 } 2764 } else 2765 *keyix = 0; 2766 } else { 2767 *keyix = k - vap->iv_nw_keys; 2768 } 2769 *rxkeyix = *keyix; 2770 return 1; 2771} 2772 2773static int 2774rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 2775{ 2776 struct rum_softc *sc = vap->iv_ic->ic_softc; 2777 int group; 2778 2779 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 2780 /* Not for us. */ 2781 return 1; 2782 } 2783 2784 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 2785 2786 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 2787 group ? rum_group_key_set_cb : rum_pair_key_set_cb); 2788} 2789 2790static int 2791rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 2792{ 2793 struct rum_softc *sc = vap->iv_ic->ic_softc; 2794 int group; 2795 2796 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 2797 /* Not for us. */ 2798 return 1; 2799 } 2800 2801 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 2802 2803 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 2804 group ? rum_group_key_del_cb : rum_pair_key_del_cb); 2805} 2806 2807static int 2808rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2809 const struct ieee80211_bpf_params *params) 2810{ 2811 struct rum_softc *sc = ni->ni_ic->ic_softc; 2812 int ret; 2813 2814 RUM_LOCK(sc); 2815 /* prevent management frames from being sent if we're not ready */ 2816 if (!sc->sc_running) { 2817 ret = ENETDOWN; 2818 goto bad; 2819 } 2820 if (sc->tx_nfree < RUM_TX_MINFREE) { 2821 ret = EIO; 2822 goto bad; 2823 } 2824 2825 if (params == NULL) { 2826 /* 2827 * Legacy path; interpret frame contents to decide 2828 * precisely how to send the frame. 2829 */ 2830 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 2831 goto bad; 2832 } else { 2833 /* 2834 * Caller supplied explicit parameters to use in 2835 * sending the frame. 2836 */ 2837 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 2838 goto bad; 2839 } 2840 RUM_UNLOCK(sc); 2841 2842 return 0; 2843bad: 2844 RUM_UNLOCK(sc); 2845 m_freem(m); 2846 return ret; 2847} 2848 2849static void 2850rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2851{ 2852 struct ieee80211vap *vap = ni->ni_vap; 2853 struct rum_vap *rvp = RUM_VAP(vap); 2854 2855 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2856 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2857 2858 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2859} 2860 2861static void 2862rum_ratectl_timeout(void *arg) 2863{ 2864 struct rum_vap *rvp = arg; 2865 struct ieee80211vap *vap = &rvp->vap; 2866 struct ieee80211com *ic = vap->iv_ic; 2867 2868 ieee80211_runtask(ic, &rvp->ratectl_task); 2869} 2870 2871static void 2872rum_ratectl_task(void *arg, int pending) 2873{ 2874 struct rum_vap *rvp = arg; 2875 struct ieee80211vap *vap = &rvp->vap; 2876 struct rum_softc *sc = vap->iv_ic->ic_softc; 2877 struct ieee80211_node *ni; 2878 int ok[3], fail; 2879 int sum, success, retrycnt; 2880 2881 RUM_LOCK(sc); 2882 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */ 2883 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2884 2885 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */ 2886 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */ 2887 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */ 2888 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2889 2890 success = ok[0] + ok[1] + ok[2]; 2891 sum = success + fail; 2892 /* XXX at least */ 2893 retrycnt = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1); 2894 2895 if (sum != 0) { 2896 ni = ieee80211_ref_node(vap->iv_bss); 2897 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2898 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2899 ieee80211_free_node(ni); 2900 } 2901 2902 /* count TX retry-fail as Tx errors */ 2903 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2904 2905 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2906 RUM_UNLOCK(sc); 2907} 2908 2909static void 2910rum_scan_start(struct ieee80211com *ic) 2911{ 2912 struct rum_softc *sc = ic->ic_softc; 2913 2914 RUM_LOCK(sc); 2915 rum_abort_tsf_sync(sc); 2916 rum_set_bssid(sc, ieee80211broadcastaddr); 2917 RUM_UNLOCK(sc); 2918 2919} 2920 2921static void 2922rum_scan_end(struct ieee80211com *ic) 2923{ 2924 struct rum_softc *sc = ic->ic_softc; 2925 2926 RUM_LOCK(sc); 2927 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 2928 rum_enable_tsf_sync(sc); 2929 else 2930 rum_enable_tsf(sc); 2931 rum_set_bssid(sc, sc->sc_bssid); 2932 RUM_UNLOCK(sc); 2933 2934} 2935 2936static void 2937rum_set_channel(struct ieee80211com *ic) 2938{ 2939 struct rum_softc *sc = ic->ic_softc; 2940 2941 RUM_LOCK(sc); 2942 rum_set_chan(sc, ic->ic_curchan); 2943 RUM_UNLOCK(sc); 2944} 2945 2946static int 2947rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2948{ 2949 struct ieee80211com *ic = &sc->sc_ic; 2950 int lna, agc, rssi; 2951 2952 lna = (raw >> 5) & 0x3; 2953 agc = raw & 0x1f; 2954 2955 if (lna == 0) { 2956 /* 2957 * No RSSI mapping 2958 * 2959 * NB: Since RSSI is relative to noise floor, -1 is 2960 * adequate for caller to know error happened. 2961 */ 2962 return -1; 2963 } 2964 2965 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2966 2967 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2968 rssi += sc->rssi_2ghz_corr; 2969 2970 if (lna == 1) 2971 rssi -= 64; 2972 else if (lna == 2) 2973 rssi -= 74; 2974 else if (lna == 3) 2975 rssi -= 90; 2976 } else { 2977 rssi += sc->rssi_5ghz_corr; 2978 2979 if (!sc->ext_5ghz_lna && lna != 1) 2980 rssi += 4; 2981 2982 if (lna == 1) 2983 rssi -= 64; 2984 else if (lna == 2) 2985 rssi -= 86; 2986 else if (lna == 3) 2987 rssi -= 100; 2988 } 2989 return rssi; 2990} 2991 2992static int 2993rum_pause(struct rum_softc *sc, int timeout) 2994{ 2995 2996 usb_pause_mtx(&sc->sc_mtx, timeout); 2997 return (0); 2998} 2999 3000static device_method_t rum_methods[] = { 3001 /* Device interface */ 3002 DEVMETHOD(device_probe, rum_match), 3003 DEVMETHOD(device_attach, rum_attach), 3004 DEVMETHOD(device_detach, rum_detach), 3005 DEVMETHOD_END 3006}; 3007 3008static driver_t rum_driver = { 3009 .name = "rum", 3010 .methods = rum_methods, 3011 .size = sizeof(struct rum_softc), 3012}; 3013 3014static devclass_t rum_devclass; 3015 3016DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 3017MODULE_DEPEND(rum, wlan, 1, 1, 1); 3018MODULE_DEPEND(rum, usb, 1, 1, 1); 3019MODULE_VERSION(rum, 1); 3020USB_PNP_HOST_INFO(rum_devs); 3021