if_rum.c revision 297171
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 297171 2016-03-21 22:29:24Z 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 297171 2016-03-21 22:29:24Z 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 usb_error_t rum_do_mcu_request(struct rum_softc *sc, int); 158static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 159 const char [IFNAMSIZ], int, enum ieee80211_opmode, 160 int, const uint8_t [IEEE80211_ADDR_LEN], 161 const uint8_t [IEEE80211_ADDR_LEN]); 162static void rum_vap_delete(struct ieee80211vap *); 163static void rum_cmdq_cb(void *, int); 164static int rum_cmd_sleepable(struct rum_softc *, const void *, 165 size_t, uint8_t, CMD_FUNC_PROTO); 166static void rum_tx_free(struct rum_tx_data *, int); 167static void rum_setup_tx_list(struct rum_softc *); 168static void rum_unsetup_tx_list(struct rum_softc *); 169static void rum_beacon_miss(struct ieee80211vap *); 170static void rum_sta_recv_mgmt(struct ieee80211_node *, 171 struct mbuf *, int, 172 const struct ieee80211_rx_stats *, int, int); 173static int rum_set_power_state(struct rum_softc *, int); 174static int rum_newstate(struct ieee80211vap *, 175 enum ieee80211_state, int); 176static uint8_t rum_crypto_mode(struct rum_softc *, u_int, int); 177static void rum_setup_tx_desc(struct rum_softc *, 178 struct rum_tx_desc *, struct ieee80211_key *, 179 uint32_t, uint8_t, uint8_t, int, int, int); 180static uint32_t rum_tx_crypto_flags(struct rum_softc *, 181 struct ieee80211_node *, 182 const struct ieee80211_key *); 183static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 184 struct ieee80211_node *); 185static int rum_tx_raw(struct rum_softc *, struct mbuf *, 186 struct ieee80211_node *, 187 const struct ieee80211_bpf_params *); 188static int rum_tx_data(struct rum_softc *, struct mbuf *, 189 struct ieee80211_node *); 190static int rum_transmit(struct ieee80211com *, struct mbuf *); 191static void rum_start(struct rum_softc *); 192static void rum_parent(struct ieee80211com *); 193static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 194 int); 195static uint32_t rum_read(struct rum_softc *, uint16_t); 196static void rum_read_multi(struct rum_softc *, uint16_t, void *, 197 int); 198static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 199static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 200 size_t); 201static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 202static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 203static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 204 uint32_t); 205static int rum_bbp_busy(struct rum_softc *); 206static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 207static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 208static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 209static void rum_select_antenna(struct rum_softc *); 210static void rum_enable_mrr(struct rum_softc *); 211static void rum_set_txpreamble(struct rum_softc *); 212static void rum_set_basicrates(struct rum_softc *); 213static void rum_select_band(struct rum_softc *, 214 struct ieee80211_channel *); 215static void rum_set_chan(struct rum_softc *, 216 struct ieee80211_channel *); 217static void rum_set_maxretry(struct rum_softc *, 218 struct ieee80211vap *); 219static int rum_enable_tsf_sync(struct rum_softc *); 220static void rum_enable_tsf(struct rum_softc *); 221static void rum_abort_tsf_sync(struct rum_softc *); 222static void rum_get_tsf(struct rum_softc *, uint64_t *); 223static void rum_update_slot_cb(struct rum_softc *, 224 union sec_param *, uint8_t); 225static void rum_update_slot(struct ieee80211com *); 226static int rum_wme_update(struct ieee80211com *); 227static void rum_set_bssid(struct rum_softc *, const uint8_t *); 228static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 229static void rum_update_mcast(struct ieee80211com *); 230static void rum_update_promisc(struct ieee80211com *); 231static void rum_setpromisc(struct rum_softc *); 232static const char *rum_get_rf(int); 233static void rum_read_eeprom(struct rum_softc *); 234static int rum_bbp_wakeup(struct rum_softc *); 235static int rum_bbp_init(struct rum_softc *); 236static void rum_clr_shkey_regs(struct rum_softc *); 237static int rum_init(struct rum_softc *); 238static void rum_stop(struct rum_softc *); 239static void rum_load_microcode(struct rum_softc *, const uint8_t *, 240 size_t); 241static int rum_set_sleep_time(struct rum_softc *, uint16_t); 242static int rum_reset(struct ieee80211vap *, u_long); 243static int rum_set_beacon(struct rum_softc *, 244 struct ieee80211vap *); 245static int rum_alloc_beacon(struct rum_softc *, 246 struct ieee80211vap *); 247static void rum_update_beacon_cb(struct rum_softc *, 248 union sec_param *, uint8_t); 249static void rum_update_beacon(struct ieee80211vap *, int); 250static int rum_common_key_set(struct rum_softc *, 251 struct ieee80211_key *, uint16_t); 252static void rum_group_key_set_cb(struct rum_softc *, 253 union sec_param *, uint8_t); 254static void rum_group_key_del_cb(struct rum_softc *, 255 union sec_param *, uint8_t); 256static void rum_pair_key_set_cb(struct rum_softc *, 257 union sec_param *, uint8_t); 258static void rum_pair_key_del_cb(struct rum_softc *, 259 union sec_param *, uint8_t); 260static int rum_key_alloc(struct ieee80211vap *, 261 struct ieee80211_key *, ieee80211_keyix *, 262 ieee80211_keyix *); 263static int rum_key_set(struct ieee80211vap *, 264 const struct ieee80211_key *); 265static int rum_key_delete(struct ieee80211vap *, 266 const struct ieee80211_key *); 267static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 268 const struct ieee80211_bpf_params *); 269static void rum_scan_start(struct ieee80211com *); 270static void rum_scan_end(struct ieee80211com *); 271static void rum_set_channel(struct ieee80211com *); 272static int rum_get_rssi(struct rum_softc *, uint8_t); 273static void rum_ratectl_start(struct rum_softc *, 274 struct ieee80211_node *); 275static void rum_ratectl_timeout(void *); 276static void rum_ratectl_task(void *, int); 277static int rum_pause(struct rum_softc *, int); 278 279static const struct { 280 uint32_t reg; 281 uint32_t val; 282} rum_def_mac[] = { 283 { RT2573_TXRX_CSR0, 0x025fb032 }, 284 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 285 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 286 { RT2573_TXRX_CSR3, 0x00858687 }, 287 { RT2573_TXRX_CSR7, 0x2e31353b }, 288 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 289 { RT2573_TXRX_CSR15, 0x0000000f }, 290 { RT2573_MAC_CSR6, 0x00000fff }, 291 { RT2573_MAC_CSR8, 0x016c030a }, 292 { RT2573_MAC_CSR10, 0x00000718 }, 293 { RT2573_MAC_CSR12, 0x00000004 }, 294 { RT2573_MAC_CSR13, 0x00007f00 }, 295 { RT2573_SEC_CSR2, 0x00000000 }, 296 { RT2573_SEC_CSR3, 0x00000000 }, 297 { RT2573_SEC_CSR4, 0x00000000 }, 298 { RT2573_PHY_CSR1, 0x000023b0 }, 299 { RT2573_PHY_CSR5, 0x00040a06 }, 300 { RT2573_PHY_CSR6, 0x00080606 }, 301 { RT2573_PHY_CSR7, 0x00000408 }, 302 { RT2573_AIFSN_CSR, 0x00002273 }, 303 { RT2573_CWMIN_CSR, 0x00002344 }, 304 { RT2573_CWMAX_CSR, 0x000034aa } 305}; 306 307static const struct { 308 uint8_t reg; 309 uint8_t val; 310} rum_def_bbp[] = { 311 { 3, 0x80 }, 312 { 15, 0x30 }, 313 { 17, 0x20 }, 314 { 21, 0xc8 }, 315 { 22, 0x38 }, 316 { 23, 0x06 }, 317 { 24, 0xfe }, 318 { 25, 0x0a }, 319 { 26, 0x0d }, 320 { 32, 0x0b }, 321 { 34, 0x12 }, 322 { 37, 0x07 }, 323 { 39, 0xf8 }, 324 { 41, 0x60 }, 325 { 53, 0x10 }, 326 { 54, 0x18 }, 327 { 60, 0x10 }, 328 { 61, 0x04 }, 329 { 62, 0x04 }, 330 { 75, 0xfe }, 331 { 86, 0xfe }, 332 { 88, 0xfe }, 333 { 90, 0x0f }, 334 { 99, 0x00 }, 335 { 102, 0x16 }, 336 { 107, 0x04 } 337}; 338 339static const struct rfprog { 340 uint8_t chan; 341 uint32_t r1, r2, r3, r4; 342} rum_rf5226[] = { 343 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 344 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 345 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 346 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 347 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 348 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 349 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 350 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 351 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 352 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 353 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 354 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 355 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 356 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 357 358 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 359 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 360 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 361 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 362 363 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 364 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 365 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 366 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 367 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 368 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 369 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 370 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 371 372 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 373 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 374 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 375 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 376 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 377 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 378 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 379 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 380 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 381 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 382 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 383 384 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 385 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 386 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 387 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 388 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 389}, rum_rf5225[] = { 390 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 391 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 392 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 393 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 394 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 395 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 396 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 397 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 398 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 399 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 400 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 401 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 402 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 403 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 404 405 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 406 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 407 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 408 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 409 410 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 411 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 412 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 413 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 414 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 415 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 416 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 417 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 418 419 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 420 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 421 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 422 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 423 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 424 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 425 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 426 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 427 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 428 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 429 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 430 431 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 432 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 433 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 434 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 435 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 436}; 437 438static const struct usb_config rum_config[RUM_N_TRANSFER] = { 439 [RUM_BULK_WR] = { 440 .type = UE_BULK, 441 .endpoint = UE_ADDR_ANY, 442 .direction = UE_DIR_OUT, 443 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 444 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 445 .callback = rum_bulk_write_callback, 446 .timeout = 5000, /* ms */ 447 }, 448 [RUM_BULK_RD] = { 449 .type = UE_BULK, 450 .endpoint = UE_ADDR_ANY, 451 .direction = UE_DIR_IN, 452 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 453 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 454 .callback = rum_bulk_read_callback, 455 }, 456}; 457 458static int 459rum_match(device_t self) 460{ 461 struct usb_attach_arg *uaa = device_get_ivars(self); 462 463 if (uaa->usb_mode != USB_MODE_HOST) 464 return (ENXIO); 465 if (uaa->info.bConfigIndex != 0) 466 return (ENXIO); 467 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 468 return (ENXIO); 469 470 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 471} 472 473static int 474rum_attach(device_t self) 475{ 476 struct usb_attach_arg *uaa = device_get_ivars(self); 477 struct rum_softc *sc = device_get_softc(self); 478 struct ieee80211com *ic = &sc->sc_ic; 479 uint32_t tmp; 480 uint8_t bands[howmany(IEEE80211_MODE_MAX, 8)]; 481 uint8_t iface_index; 482 int error, ntries; 483 484 device_set_usb_desc(self); 485 sc->sc_udev = uaa->device; 486 sc->sc_dev = self; 487 488 RUM_LOCK_INIT(sc); 489 RUM_CMDQ_LOCK_INIT(sc); 490 mbufq_init(&sc->sc_snd, ifqmaxlen); 491 492 iface_index = RT2573_IFACE_INDEX; 493 error = usbd_transfer_setup(uaa->device, &iface_index, 494 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 495 if (error) { 496 device_printf(self, "could not allocate USB transfers, " 497 "err=%s\n", usbd_errstr(error)); 498 goto detach; 499 } 500 501 RUM_LOCK(sc); 502 /* retrieve RT2573 rev. no */ 503 for (ntries = 0; ntries < 100; ntries++) { 504 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 505 break; 506 if (rum_pause(sc, hz / 100)) 507 break; 508 } 509 if (ntries == 100) { 510 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 511 RUM_UNLOCK(sc); 512 goto detach; 513 } 514 515 /* retrieve MAC address and various other things from EEPROM */ 516 rum_read_eeprom(sc); 517 518 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 519 tmp, rum_get_rf(sc->rf_rev)); 520 521 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 522 RUM_UNLOCK(sc); 523 524 ic->ic_softc = sc; 525 ic->ic_name = device_get_nameunit(self); 526 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 527 528 /* set device capabilities */ 529 ic->ic_caps = 530 IEEE80211_C_STA /* station mode supported */ 531 | IEEE80211_C_IBSS /* IBSS mode supported */ 532 | IEEE80211_C_MONITOR /* monitor mode supported */ 533 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 534 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 535 | IEEE80211_C_TXPMGT /* tx power management */ 536 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 537 | IEEE80211_C_SHSLOT /* short slot time supported */ 538 | IEEE80211_C_BGSCAN /* bg scanning supported */ 539 | IEEE80211_C_WPA /* 802.11i */ 540 | IEEE80211_C_WME /* 802.11e */ 541 | IEEE80211_C_PMGT /* Station-side power mgmt */ 542 | IEEE80211_C_SWSLEEP /* net80211 managed power mgmt */ 543 ; 544 545 ic->ic_cryptocaps = 546 IEEE80211_CRYPTO_WEP | 547 IEEE80211_CRYPTO_AES_CCM | 548 IEEE80211_CRYPTO_TKIPMIC | 549 IEEE80211_CRYPTO_TKIP; 550 551 memset(bands, 0, sizeof(bands)); 552 setbit(bands, IEEE80211_MODE_11B); 553 setbit(bands, IEEE80211_MODE_11G); 554 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 555 setbit(bands, IEEE80211_MODE_11A); 556 ieee80211_init_channels(ic, NULL, bands); 557 558 ieee80211_ifattach(ic); 559 ic->ic_update_promisc = rum_update_promisc; 560 ic->ic_raw_xmit = rum_raw_xmit; 561 ic->ic_scan_start = rum_scan_start; 562 ic->ic_scan_end = rum_scan_end; 563 ic->ic_set_channel = rum_set_channel; 564 ic->ic_transmit = rum_transmit; 565 ic->ic_parent = rum_parent; 566 ic->ic_vap_create = rum_vap_create; 567 ic->ic_vap_delete = rum_vap_delete; 568 ic->ic_updateslot = rum_update_slot; 569 ic->ic_wme.wme_update = rum_wme_update; 570 ic->ic_update_mcast = rum_update_mcast; 571 572 ieee80211_radiotap_attach(ic, 573 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 574 RT2573_TX_RADIOTAP_PRESENT, 575 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 576 RT2573_RX_RADIOTAP_PRESENT); 577 578 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 579 580 if (bootverbose) 581 ieee80211_announce(ic); 582 583 return (0); 584 585detach: 586 rum_detach(self); 587 return (ENXIO); /* failure */ 588} 589 590static int 591rum_detach(device_t self) 592{ 593 struct rum_softc *sc = device_get_softc(self); 594 struct ieee80211com *ic = &sc->sc_ic; 595 596 /* Prevent further ioctls */ 597 RUM_LOCK(sc); 598 sc->sc_detached = 1; 599 RUM_UNLOCK(sc); 600 601 /* stop all USB transfers */ 602 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 603 604 /* free TX list, if any */ 605 RUM_LOCK(sc); 606 rum_unsetup_tx_list(sc); 607 RUM_UNLOCK(sc); 608 609 if (ic->ic_softc == sc) { 610 ieee80211_draintask(ic, &sc->cmdq_task); 611 ieee80211_ifdetach(ic); 612 } 613 614 mbufq_drain(&sc->sc_snd); 615 RUM_CMDQ_LOCK_DESTROY(sc); 616 RUM_LOCK_DESTROY(sc); 617 618 return (0); 619} 620 621static usb_error_t 622rum_do_request(struct rum_softc *sc, 623 struct usb_device_request *req, void *data) 624{ 625 usb_error_t err; 626 int ntries = 10; 627 628 while (ntries--) { 629 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 630 req, data, 0, NULL, 250 /* ms */); 631 if (err == 0) 632 break; 633 634 DPRINTFN(1, "Control request failed, %s (retrying)\n", 635 usbd_errstr(err)); 636 if (rum_pause(sc, hz / 100)) 637 break; 638 } 639 return (err); 640} 641 642static usb_error_t 643rum_do_mcu_request(struct rum_softc *sc, int request) 644{ 645 struct usb_device_request req; 646 647 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 648 req.bRequest = RT2573_MCU_CNTL; 649 USETW(req.wValue, request); 650 USETW(req.wIndex, 0); 651 USETW(req.wLength, 0); 652 653 return (rum_do_request(sc, &req, NULL)); 654} 655 656static struct ieee80211vap * 657rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 658 enum ieee80211_opmode opmode, int flags, 659 const uint8_t bssid[IEEE80211_ADDR_LEN], 660 const uint8_t mac[IEEE80211_ADDR_LEN]) 661{ 662 struct rum_softc *sc = ic->ic_softc; 663 struct rum_vap *rvp; 664 struct ieee80211vap *vap; 665 666 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 667 return NULL; 668 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 669 vap = &rvp->vap; 670 /* enable s/w bmiss handling for sta mode */ 671 672 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 673 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 674 /* out of memory */ 675 free(rvp, M_80211_VAP); 676 return (NULL); 677 } 678 679 /* override state transition machine */ 680 rvp->newstate = vap->iv_newstate; 681 vap->iv_newstate = rum_newstate; 682 vap->iv_key_alloc = rum_key_alloc; 683 vap->iv_key_set = rum_key_set; 684 vap->iv_key_delete = rum_key_delete; 685 vap->iv_update_beacon = rum_update_beacon; 686 vap->iv_reset = rum_reset; 687 vap->iv_max_aid = RT2573_ADDR_MAX; 688 689 if (opmode == IEEE80211_M_STA) { 690 /* 691 * Move device to the sleep state when 692 * beacon is received and there is no data for us. 693 * 694 * Used only for IEEE80211_S_SLEEP state. 695 */ 696 rvp->recv_mgmt = vap->iv_recv_mgmt; 697 vap->iv_recv_mgmt = rum_sta_recv_mgmt; 698 699 /* Ignored while sleeping. */ 700 rvp->bmiss = vap->iv_bmiss; 701 vap->iv_bmiss = rum_beacon_miss; 702 } 703 704 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 705 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 706 ieee80211_ratectl_init(vap); 707 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 708 /* complete setup */ 709 ieee80211_vap_attach(vap, ieee80211_media_change, 710 ieee80211_media_status, mac); 711 ic->ic_opmode = opmode; 712 return vap; 713} 714 715static void 716rum_vap_delete(struct ieee80211vap *vap) 717{ 718 struct rum_vap *rvp = RUM_VAP(vap); 719 struct ieee80211com *ic = vap->iv_ic; 720 721 m_freem(rvp->bcn_mbuf); 722 usb_callout_drain(&rvp->ratectl_ch); 723 ieee80211_draintask(ic, &rvp->ratectl_task); 724 ieee80211_ratectl_deinit(vap); 725 ieee80211_vap_detach(vap); 726 free(rvp, M_80211_VAP); 727} 728 729static void 730rum_cmdq_cb(void *arg, int pending) 731{ 732 struct rum_softc *sc = arg; 733 struct rum_cmdq *rc; 734 735 RUM_CMDQ_LOCK(sc); 736 while (sc->cmdq[sc->cmdq_first].func != NULL) { 737 rc = &sc->cmdq[sc->cmdq_first]; 738 RUM_CMDQ_UNLOCK(sc); 739 740 RUM_LOCK(sc); 741 rc->func(sc, &rc->data, rc->rvp_id); 742 RUM_UNLOCK(sc); 743 744 RUM_CMDQ_LOCK(sc); 745 memset(rc, 0, sizeof (*rc)); 746 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 747 } 748 RUM_CMDQ_UNLOCK(sc); 749} 750 751static int 752rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 753 uint8_t rvp_id, CMD_FUNC_PROTO) 754{ 755 struct ieee80211com *ic = &sc->sc_ic; 756 757 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 758 759 RUM_CMDQ_LOCK(sc); 760 if (sc->cmdq[sc->cmdq_last].func != NULL) { 761 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 762 RUM_CMDQ_UNLOCK(sc); 763 764 return EAGAIN; 765 } 766 767 if (ptr != NULL) 768 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 769 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 770 sc->cmdq[sc->cmdq_last].func = func; 771 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 772 RUM_CMDQ_UNLOCK(sc); 773 774 ieee80211_runtask(ic, &sc->cmdq_task); 775 776 return 0; 777} 778 779static void 780rum_tx_free(struct rum_tx_data *data, int txerr) 781{ 782 struct rum_softc *sc = data->sc; 783 784 if (data->m != NULL) { 785 ieee80211_tx_complete(data->ni, data->m, txerr); 786 data->m = NULL; 787 data->ni = NULL; 788 } 789 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 790 sc->tx_nfree++; 791} 792 793static void 794rum_setup_tx_list(struct rum_softc *sc) 795{ 796 struct rum_tx_data *data; 797 int i; 798 799 sc->tx_nfree = 0; 800 STAILQ_INIT(&sc->tx_q); 801 STAILQ_INIT(&sc->tx_free); 802 803 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 804 data = &sc->tx_data[i]; 805 806 data->sc = sc; 807 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 808 sc->tx_nfree++; 809 } 810} 811 812static void 813rum_unsetup_tx_list(struct rum_softc *sc) 814{ 815 struct rum_tx_data *data; 816 int i; 817 818 /* make sure any subsequent use of the queues will fail */ 819 sc->tx_nfree = 0; 820 STAILQ_INIT(&sc->tx_q); 821 STAILQ_INIT(&sc->tx_free); 822 823 /* free up all node references and mbufs */ 824 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 825 data = &sc->tx_data[i]; 826 827 if (data->m != NULL) { 828 m_freem(data->m); 829 data->m = NULL; 830 } 831 if (data->ni != NULL) { 832 ieee80211_free_node(data->ni); 833 data->ni = NULL; 834 } 835 } 836} 837 838static void 839rum_beacon_miss(struct ieee80211vap *vap) 840{ 841 struct ieee80211com *ic = vap->iv_ic; 842 struct rum_softc *sc = ic->ic_softc; 843 struct rum_vap *rvp = RUM_VAP(vap); 844 int sleep; 845 846 RUM_LOCK(sc); 847 if (sc->sc_sleeping && sc->sc_sleep_end < ticks) { 848 DPRINTFN(12, "dropping 'sleeping' bit, " 849 "device must be awake now\n"); 850 851 sc->sc_sleeping = 0; 852 } 853 854 sleep = sc->sc_sleeping; 855 RUM_UNLOCK(sc); 856 857 if (!sleep) 858 rvp->bmiss(vap); 859#ifdef USB_DEBUG 860 else 861 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n"); 862#endif 863} 864 865static void 866rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype, 867 const struct ieee80211_rx_stats *rxs, 868 int rssi, int nf) 869{ 870 struct ieee80211vap *vap = ni->ni_vap; 871 struct rum_softc *sc = vap->iv_ic->ic_softc; 872 struct rum_vap *rvp = RUM_VAP(vap); 873 874 if (vap->iv_state == IEEE80211_S_SLEEP && 875 subtype == IEEE80211_FC0_SUBTYPE_BEACON) { 876 RUM_LOCK(sc); 877 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n", 878 !!(sc->last_rx_flags & RT2573_RX_MYBSS), 879 sc->last_rx_flags); 880 881 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) == 882 (RT2573_RX_MYBSS | RT2573_RX_BC)) { 883 /* 884 * Put it to sleep here; in case if there is a data 885 * for us, iv_recv_mgmt() will wakeup the device via 886 * SLEEP -> RUN state transition. 887 */ 888 rum_set_power_state(sc, 1); 889 } 890 RUM_UNLOCK(sc); 891 } 892 893 rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf); 894} 895 896static int 897rum_set_power_state(struct rum_softc *sc, int sleep) 898{ 899 usb_error_t uerror; 900 901 RUM_LOCK_ASSERT(sc); 902 903 DPRINTFN(12, "moving to %s state (sleep time %u)\n", 904 sleep ? "sleep" : "awake", sc->sc_sleep_time); 905 906 uerror = rum_do_mcu_request(sc, 907 sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP); 908 if (uerror != USB_ERR_NORMAL_COMPLETION) { 909 device_printf(sc->sc_dev, 910 "%s: could not change power state: %s\n", 911 __func__, usbd_errstr(uerror)); 912 return (EIO); 913 } 914 915 sc->sc_sleeping = !!sleep; 916 sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0; 917 918 return (0); 919} 920 921static int 922rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 923{ 924 struct rum_vap *rvp = RUM_VAP(vap); 925 struct ieee80211com *ic = vap->iv_ic; 926 struct rum_softc *sc = ic->ic_softc; 927 const struct ieee80211_txparam *tp; 928 enum ieee80211_state ostate; 929 struct ieee80211_node *ni; 930 usb_error_t uerror; 931 int ret = 0; 932 933 ostate = vap->iv_state; 934 DPRINTF("%s -> %s\n", 935 ieee80211_state_name[ostate], 936 ieee80211_state_name[nstate]); 937 938 IEEE80211_UNLOCK(ic); 939 RUM_LOCK(sc); 940 usb_callout_stop(&rvp->ratectl_ch); 941 942 if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) { 943 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT); 944 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 945 946 /* 947 * Ignore any errors; 948 * any subsequent TX will wakeup it anyway 949 */ 950 (void) rum_set_power_state(sc, 0); 951 } 952 953 switch (nstate) { 954 case IEEE80211_S_INIT: 955 if (ostate == IEEE80211_S_RUN) 956 rum_abort_tsf_sync(sc); 957 958 break; 959 960 case IEEE80211_S_RUN: 961 if (ostate == IEEE80211_S_SLEEP) 962 break; /* already handled */ 963 964 ni = ieee80211_ref_node(vap->iv_bss); 965 966 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 967 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC || 968 ni->ni_chan == IEEE80211_CHAN_ANYC) { 969 ret = EINVAL; 970 goto run_fail; 971 } 972 rum_update_slot_cb(sc, NULL, 0); 973 rum_enable_mrr(sc); 974 rum_set_txpreamble(sc); 975 rum_set_basicrates(sc); 976 rum_set_maxretry(sc, vap); 977 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 978 rum_set_bssid(sc, sc->sc_bssid); 979 } 980 981 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 982 vap->iv_opmode == IEEE80211_M_IBSS) { 983 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 984 goto run_fail; 985 } 986 987 if (vap->iv_opmode != IEEE80211_M_MONITOR && 988 vap->iv_opmode != IEEE80211_M_AHDEMO) { 989 if ((ret = rum_enable_tsf_sync(sc)) != 0) 990 goto run_fail; 991 } else 992 rum_enable_tsf(sc); 993 994 /* enable automatic rate adaptation */ 995 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 996 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 997 rum_ratectl_start(sc, ni); 998run_fail: 999 ieee80211_free_node(ni); 1000 break; 1001 case IEEE80211_S_SLEEP: 1002 /* Implemented for STA mode only. */ 1003 if (vap->iv_opmode != IEEE80211_M_STA) 1004 break; 1005 1006 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 1007 if (uerror != USB_ERR_NORMAL_COMPLETION) { 1008 ret = EIO; 1009 break; 1010 } 1011 1012 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT); 1013 if (uerror != USB_ERR_NORMAL_COMPLETION) { 1014 ret = EIO; 1015 break; 1016 } 1017 1018 ret = rum_set_power_state(sc, 1); 1019 if (ret != 0) { 1020 device_printf(sc->sc_dev, 1021 "%s: could not move to the SLEEP state: %s\n", 1022 __func__, usbd_errstr(uerror)); 1023 } 1024 break; 1025 default: 1026 break; 1027 } 1028 RUM_UNLOCK(sc); 1029 IEEE80211_LOCK(ic); 1030 return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret); 1031} 1032 1033static void 1034rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 1035{ 1036 struct rum_softc *sc = usbd_xfer_softc(xfer); 1037 struct ieee80211vap *vap; 1038 struct rum_tx_data *data; 1039 struct mbuf *m; 1040 struct usb_page_cache *pc; 1041 unsigned int len; 1042 int actlen, sumlen; 1043 1044 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 1045 1046 switch (USB_GET_STATE(xfer)) { 1047 case USB_ST_TRANSFERRED: 1048 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 1049 1050 /* free resources */ 1051 data = usbd_xfer_get_priv(xfer); 1052 rum_tx_free(data, 0); 1053 usbd_xfer_set_priv(xfer, NULL); 1054 1055 /* FALLTHROUGH */ 1056 case USB_ST_SETUP: 1057tr_setup: 1058 data = STAILQ_FIRST(&sc->tx_q); 1059 if (data) { 1060 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 1061 m = data->m; 1062 1063 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 1064 DPRINTFN(0, "data overflow, %u bytes\n", 1065 m->m_pkthdr.len); 1066 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 1067 } 1068 pc = usbd_xfer_get_frame(xfer, 0); 1069 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 1070 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 1071 m->m_pkthdr.len); 1072 1073 vap = data->ni->ni_vap; 1074 if (ieee80211_radiotap_active_vap(vap)) { 1075 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1076 1077 tap->wt_flags = 0; 1078 tap->wt_rate = data->rate; 1079 rum_get_tsf(sc, &tap->wt_tsf); 1080 tap->wt_antenna = sc->tx_ant; 1081 1082 ieee80211_radiotap_tx(vap, m); 1083 } 1084 1085 /* align end on a 4-bytes boundary */ 1086 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 1087 if ((len % 64) == 0) 1088 len += 4; 1089 1090 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 1091 m->m_pkthdr.len, len); 1092 1093 usbd_xfer_set_frame_len(xfer, 0, len); 1094 usbd_xfer_set_priv(xfer, data); 1095 1096 usbd_transfer_submit(xfer); 1097 } 1098 rum_start(sc); 1099 break; 1100 1101 default: /* Error */ 1102 DPRINTFN(11, "transfer error, %s\n", 1103 usbd_errstr(error)); 1104 1105 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 1106 data = usbd_xfer_get_priv(xfer); 1107 if (data != NULL) { 1108 rum_tx_free(data, error); 1109 usbd_xfer_set_priv(xfer, NULL); 1110 } 1111 1112 if (error != USB_ERR_CANCELLED) { 1113 if (error == USB_ERR_TIMEOUT) 1114 device_printf(sc->sc_dev, "device timeout\n"); 1115 1116 /* 1117 * Try to clear stall first, also if other 1118 * errors occur, hence clearing stall 1119 * introduces a 50 ms delay: 1120 */ 1121 usbd_xfer_set_stall(xfer); 1122 goto tr_setup; 1123 } 1124 break; 1125 } 1126} 1127 1128static void 1129rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 1130{ 1131 struct rum_softc *sc = usbd_xfer_softc(xfer); 1132 struct ieee80211com *ic = &sc->sc_ic; 1133 struct ieee80211_frame_min *wh; 1134 struct ieee80211_node *ni; 1135 struct mbuf *m = NULL; 1136 struct usb_page_cache *pc; 1137 uint32_t flags; 1138 uint8_t rssi = 0; 1139 int len; 1140 1141 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 1142 1143 switch (USB_GET_STATE(xfer)) { 1144 case USB_ST_TRANSFERRED: 1145 1146 DPRINTFN(15, "rx done, actlen=%d\n", len); 1147 1148 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 1149 DPRINTF("%s: xfer too short %d\n", 1150 device_get_nameunit(sc->sc_dev), len); 1151 counter_u64_add(ic->ic_ierrors, 1); 1152 goto tr_setup; 1153 } 1154 1155 len -= RT2573_RX_DESC_SIZE; 1156 pc = usbd_xfer_get_frame(xfer, 0); 1157 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 1158 1159 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 1160 flags = le32toh(sc->sc_rx_desc.flags); 1161 sc->last_rx_flags = flags; 1162 if (flags & RT2573_RX_CRC_ERROR) { 1163 /* 1164 * This should not happen since we did not 1165 * request to receive those frames when we 1166 * filled RUM_TXRX_CSR2: 1167 */ 1168 DPRINTFN(5, "PHY or CRC error\n"); 1169 counter_u64_add(ic->ic_ierrors, 1); 1170 goto tr_setup; 1171 } 1172 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) { 1173 switch (flags & RT2573_RX_DEC_MASK) { 1174 case RT2573_RX_IV_ERROR: 1175 DPRINTFN(5, "IV/EIV error\n"); 1176 break; 1177 case RT2573_RX_MIC_ERROR: 1178 DPRINTFN(5, "MIC error\n"); 1179 break; 1180 case RT2573_RX_KEY_ERROR: 1181 DPRINTFN(5, "Key error\n"); 1182 break; 1183 } 1184 counter_u64_add(ic->ic_ierrors, 1); 1185 goto tr_setup; 1186 } 1187 1188 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1189 if (m == NULL) { 1190 DPRINTF("could not allocate mbuf\n"); 1191 counter_u64_add(ic->ic_ierrors, 1); 1192 goto tr_setup; 1193 } 1194 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 1195 mtod(m, uint8_t *), len); 1196 1197 wh = mtod(m, struct ieee80211_frame_min *); 1198 1199 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1200 (flags & RT2573_RX_CIP_MASK) != 1201 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) { 1202 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 1203 m->m_flags |= M_WEP; 1204 } 1205 1206 /* finalize mbuf */ 1207 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 1208 1209 if (ieee80211_radiotap_active(ic)) { 1210 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 1211 1212 tap->wr_flags = 0; 1213 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 1214 (flags & RT2573_RX_OFDM) ? 1215 IEEE80211_T_OFDM : IEEE80211_T_CCK); 1216 rum_get_tsf(sc, &tap->wr_tsf); 1217 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 1218 tap->wr_antnoise = RT2573_NOISE_FLOOR; 1219 tap->wr_antenna = sc->rx_ant; 1220 } 1221 /* FALLTHROUGH */ 1222 case USB_ST_SETUP: 1223tr_setup: 1224 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1225 usbd_transfer_submit(xfer); 1226 1227 /* 1228 * At the end of a USB callback it is always safe to unlock 1229 * the private mutex of a device! That is why we do the 1230 * "ieee80211_input" here, and not some lines up! 1231 */ 1232 RUM_UNLOCK(sc); 1233 if (m) { 1234 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1235 ni = ieee80211_find_rxnode(ic, wh); 1236 else 1237 ni = NULL; 1238 1239 if (ni != NULL) { 1240 (void) ieee80211_input(ni, m, rssi, 1241 RT2573_NOISE_FLOOR); 1242 ieee80211_free_node(ni); 1243 } else 1244 (void) ieee80211_input_all(ic, m, rssi, 1245 RT2573_NOISE_FLOOR); 1246 } 1247 RUM_LOCK(sc); 1248 rum_start(sc); 1249 return; 1250 1251 default: /* Error */ 1252 if (error != USB_ERR_CANCELLED) { 1253 /* try to clear stall first */ 1254 usbd_xfer_set_stall(xfer); 1255 goto tr_setup; 1256 } 1257 return; 1258 } 1259} 1260 1261static uint8_t 1262rum_plcp_signal(int rate) 1263{ 1264 switch (rate) { 1265 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1266 case 12: return 0xb; 1267 case 18: return 0xf; 1268 case 24: return 0xa; 1269 case 36: return 0xe; 1270 case 48: return 0x9; 1271 case 72: return 0xd; 1272 case 96: return 0x8; 1273 case 108: return 0xc; 1274 1275 /* CCK rates (NB: not IEEE std, device-specific) */ 1276 case 2: return 0x0; 1277 case 4: return 0x1; 1278 case 11: return 0x2; 1279 case 22: return 0x3; 1280 } 1281 return 0xff; /* XXX unsupported/unknown rate */ 1282} 1283 1284/* 1285 * Map net80211 cipher to RT2573 security mode. 1286 */ 1287static uint8_t 1288rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen) 1289{ 1290 switch (cipher) { 1291 case IEEE80211_CIPHER_WEP: 1292 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104); 1293 case IEEE80211_CIPHER_TKIP: 1294 return RT2573_MODE_TKIP; 1295 case IEEE80211_CIPHER_AES_CCM: 1296 return RT2573_MODE_AES_CCMP; 1297 default: 1298 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1299 return 0; 1300 } 1301} 1302 1303static void 1304rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1305 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid, 1306 int hdrlen, int len, int rate) 1307{ 1308 struct ieee80211com *ic = &sc->sc_ic; 1309 struct wmeParams *wmep = &sc->wme_params[qid]; 1310 uint16_t plcp_length; 1311 int remainder; 1312 1313 flags |= RT2573_TX_VALID; 1314 flags |= len << 16; 1315 1316 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1317 const struct ieee80211_cipher *cip = k->wk_cipher; 1318 1319 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen; 1320 1321 desc->eiv = 0; /* for WEP */ 1322 cip->ic_setiv(k, (uint8_t *)&desc->iv); 1323 } 1324 1325 /* setup PLCP fields */ 1326 desc->plcp_signal = rum_plcp_signal(rate); 1327 desc->plcp_service = 4; 1328 1329 len += IEEE80211_CRC_LEN; 1330 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1331 flags |= RT2573_TX_OFDM; 1332 1333 plcp_length = len & 0xfff; 1334 desc->plcp_length_hi = plcp_length >> 6; 1335 desc->plcp_length_lo = plcp_length & 0x3f; 1336 } else { 1337 if (rate == 0) 1338 rate = 2; /* avoid division by zero */ 1339 plcp_length = (16 * len + rate - 1) / rate; 1340 if (rate == 22) { 1341 remainder = (16 * len) % 22; 1342 if (remainder != 0 && remainder < 7) 1343 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1344 } 1345 desc->plcp_length_hi = plcp_length >> 8; 1346 desc->plcp_length_lo = plcp_length & 0xff; 1347 1348 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1349 desc->plcp_signal |= 0x08; 1350 } 1351 1352 desc->flags = htole32(flags); 1353 desc->hdrlen = hdrlen; 1354 desc->xflags = xflags; 1355 1356 desc->wme = htole16(RT2573_QID(qid) | 1357 RT2573_AIFSN(wmep->wmep_aifsn) | 1358 RT2573_LOGCWMIN(wmep->wmep_logcwmin) | 1359 RT2573_LOGCWMAX(wmep->wmep_logcwmax)); 1360} 1361 1362static int 1363rum_sendprot(struct rum_softc *sc, 1364 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1365{ 1366 struct ieee80211com *ic = ni->ni_ic; 1367 const struct ieee80211_frame *wh; 1368 struct rum_tx_data *data; 1369 struct mbuf *mprot; 1370 int protrate, pktlen, flags, isshort; 1371 uint16_t dur; 1372 1373 RUM_LOCK_ASSERT(sc); 1374 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1375 ("protection %d", prot)); 1376 1377 wh = mtod(m, const struct ieee80211_frame *); 1378 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1379 1380 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1381 1382 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1383 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1384 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1385 flags = 0; 1386 if (prot == IEEE80211_PROT_RTSCTS) { 1387 /* NB: CTS is the same size as an ACK */ 1388 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1389 flags |= RT2573_TX_NEED_ACK; 1390 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1391 } else { 1392 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1393 } 1394 if (mprot == NULL) { 1395 /* XXX stat + msg */ 1396 return (ENOBUFS); 1397 } 1398 data = STAILQ_FIRST(&sc->tx_free); 1399 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1400 sc->tx_nfree--; 1401 1402 data->m = mprot; 1403 data->ni = ieee80211_ref_node(ni); 1404 data->rate = protrate; 1405 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0, 1406 mprot->m_pkthdr.len, protrate); 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 uint32_t 1415rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni, 1416 const struct ieee80211_key *k) 1417{ 1418 struct ieee80211vap *vap = ni->ni_vap; 1419 u_int cipher; 1420 uint32_t flags = 0; 1421 uint8_t mode, pos; 1422 1423 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1424 cipher = k->wk_cipher->ic_cipher; 1425 pos = k->wk_keyix; 1426 mode = rum_crypto_mode(sc, cipher, k->wk_keylen); 1427 if (mode == 0) 1428 return 0; 1429 1430 flags |= RT2573_TX_CIP_MODE(mode); 1431 1432 /* Do not trust GROUP flag */ 1433 if (!(k >= &vap->iv_nw_keys[0] && 1434 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) 1435 flags |= RT2573_TX_KEY_PAIR; 1436 else 1437 pos += 0 * RT2573_SKEY_MAX; /* vap id */ 1438 1439 flags |= RT2573_TX_KEY_ID(pos); 1440 1441 if (cipher == IEEE80211_CIPHER_TKIP) 1442 flags |= RT2573_TX_TKIPMIC; 1443 } 1444 1445 return flags; 1446} 1447 1448static int 1449rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1450{ 1451 struct ieee80211vap *vap = ni->ni_vap; 1452 struct ieee80211com *ic = &sc->sc_ic; 1453 struct rum_tx_data *data; 1454 struct ieee80211_frame *wh; 1455 const struct ieee80211_txparam *tp; 1456 struct ieee80211_key *k = NULL; 1457 uint32_t flags = 0; 1458 uint16_t dur; 1459 uint8_t ac, type, xflags = 0; 1460 int hdrlen; 1461 1462 RUM_LOCK_ASSERT(sc); 1463 1464 data = STAILQ_FIRST(&sc->tx_free); 1465 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1466 sc->tx_nfree--; 1467 1468 wh = mtod(m0, struct ieee80211_frame *); 1469 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1470 hdrlen = ieee80211_anyhdrsize(wh); 1471 ac = M_WME_GETAC(m0); 1472 1473 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1474 k = ieee80211_crypto_get_txkey(ni, m0); 1475 if (k == NULL) 1476 return (ENOENT); 1477 1478 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1479 !k->wk_cipher->ic_encap(k, m0)) 1480 return (ENOBUFS); 1481 1482 wh = mtod(m0, struct ieee80211_frame *); 1483 } 1484 1485 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1486 1487 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1488 flags |= RT2573_TX_NEED_ACK; 1489 1490 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1491 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1492 USETW(wh->i_dur, dur); 1493 1494 /* tell hardware to add timestamp for probe responses */ 1495 if (type == IEEE80211_FC0_TYPE_MGT && 1496 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1497 IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1498 flags |= RT2573_TX_TIMESTAMP; 1499 } 1500 1501 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1502 xflags |= RT2573_TX_HWSEQ; 1503 1504 if (k != NULL) 1505 flags |= rum_tx_crypto_flags(sc, ni, k); 1506 1507 data->m = m0; 1508 data->ni = ni; 1509 data->rate = tp->mgmtrate; 1510 1511 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1512 m0->m_pkthdr.len, tp->mgmtrate); 1513 1514 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1515 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1516 1517 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1518 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1519 1520 return (0); 1521} 1522 1523static int 1524rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1525 const struct ieee80211_bpf_params *params) 1526{ 1527 struct ieee80211com *ic = ni->ni_ic; 1528 struct ieee80211_frame *wh; 1529 struct rum_tx_data *data; 1530 uint32_t flags; 1531 uint8_t ac, type, xflags = 0; 1532 int rate, error; 1533 1534 RUM_LOCK_ASSERT(sc); 1535 1536 wh = mtod(m0, struct ieee80211_frame *); 1537 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1538 1539 ac = params->ibp_pri & 3; 1540 1541 rate = params->ibp_rate0; 1542 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1543 return (EINVAL); 1544 1545 flags = 0; 1546 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1547 flags |= RT2573_TX_NEED_ACK; 1548 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1549 error = rum_sendprot(sc, m0, ni, 1550 params->ibp_flags & IEEE80211_BPF_RTS ? 1551 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1552 rate); 1553 if (error || sc->tx_nfree == 0) 1554 return (ENOBUFS); 1555 1556 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1557 } 1558 1559 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1560 xflags |= RT2573_TX_HWSEQ; 1561 1562 data = STAILQ_FIRST(&sc->tx_free); 1563 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1564 sc->tx_nfree--; 1565 1566 data->m = m0; 1567 data->ni = ni; 1568 data->rate = rate; 1569 1570 /* XXX need to setup descriptor ourself */ 1571 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0, 1572 m0->m_pkthdr.len, rate); 1573 1574 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1575 m0->m_pkthdr.len, rate); 1576 1577 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1578 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1579 1580 return 0; 1581} 1582 1583static int 1584rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1585{ 1586 struct ieee80211vap *vap = ni->ni_vap; 1587 struct ieee80211com *ic = &sc->sc_ic; 1588 struct rum_tx_data *data; 1589 struct ieee80211_frame *wh; 1590 const struct ieee80211_txparam *tp; 1591 struct ieee80211_key *k = NULL; 1592 uint32_t flags = 0; 1593 uint16_t dur; 1594 uint8_t ac, type, qos, xflags = 0; 1595 int error, hdrlen, rate; 1596 1597 RUM_LOCK_ASSERT(sc); 1598 1599 wh = mtod(m0, struct ieee80211_frame *); 1600 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1601 hdrlen = ieee80211_anyhdrsize(wh); 1602 1603 if (IEEE80211_QOS_HAS_SEQ(wh)) 1604 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 1605 else 1606 qos = 0; 1607 ac = M_WME_GETAC(m0); 1608 1609 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1610 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1611 rate = tp->mcastrate; 1612 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1613 rate = tp->ucastrate; 1614 else 1615 rate = ni->ni_txrate; 1616 1617 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1618 k = ieee80211_crypto_get_txkey(ni, m0); 1619 if (k == NULL) { 1620 m_freem(m0); 1621 return (ENOENT); 1622 } 1623 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1624 !k->wk_cipher->ic_encap(k, m0)) { 1625 m_freem(m0); 1626 return (ENOBUFS); 1627 } 1628 1629 /* packet header may have moved, reset our local pointer */ 1630 wh = mtod(m0, struct ieee80211_frame *); 1631 } 1632 1633 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1634 xflags |= RT2573_TX_HWSEQ; 1635 1636 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1637 int prot = IEEE80211_PROT_NONE; 1638 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1639 prot = IEEE80211_PROT_RTSCTS; 1640 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1641 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1642 prot = ic->ic_protmode; 1643 if (prot != IEEE80211_PROT_NONE) { 1644 error = rum_sendprot(sc, m0, ni, prot, rate); 1645 if (error || sc->tx_nfree == 0) { 1646 m_freem(m0); 1647 return ENOBUFS; 1648 } 1649 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1650 } 1651 } 1652 1653 if (k != NULL) 1654 flags |= rum_tx_crypto_flags(sc, ni, k); 1655 1656 data = STAILQ_FIRST(&sc->tx_free); 1657 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1658 sc->tx_nfree--; 1659 1660 data->m = m0; 1661 data->ni = ni; 1662 data->rate = rate; 1663 1664 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1665 /* Unicast frame, check if an ACK is expected. */ 1666 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 1667 IEEE80211_QOS_ACKPOLICY_NOACK) 1668 flags |= RT2573_TX_NEED_ACK; 1669 1670 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1671 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1672 USETW(wh->i_dur, dur); 1673 } 1674 1675 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1676 m0->m_pkthdr.len, rate); 1677 1678 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1679 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1680 1681 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1682 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1683 1684 return 0; 1685} 1686 1687static int 1688rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1689{ 1690 struct rum_softc *sc = ic->ic_softc; 1691 int error; 1692 1693 RUM_LOCK(sc); 1694 if (!sc->sc_running) { 1695 RUM_UNLOCK(sc); 1696 return (ENXIO); 1697 } 1698 error = mbufq_enqueue(&sc->sc_snd, m); 1699 if (error) { 1700 RUM_UNLOCK(sc); 1701 return (error); 1702 } 1703 rum_start(sc); 1704 RUM_UNLOCK(sc); 1705 1706 return (0); 1707} 1708 1709static void 1710rum_start(struct rum_softc *sc) 1711{ 1712 struct ieee80211_node *ni; 1713 struct mbuf *m; 1714 1715 RUM_LOCK_ASSERT(sc); 1716 1717 if (!sc->sc_running) 1718 return; 1719 1720 while (sc->tx_nfree >= RUM_TX_MINFREE && 1721 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1722 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1723 if (rum_tx_data(sc, m, ni) != 0) { 1724 if_inc_counter(ni->ni_vap->iv_ifp, 1725 IFCOUNTER_OERRORS, 1); 1726 ieee80211_free_node(ni); 1727 break; 1728 } 1729 } 1730} 1731 1732static void 1733rum_parent(struct ieee80211com *ic) 1734{ 1735 struct rum_softc *sc = ic->ic_softc; 1736 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1737 1738 RUM_LOCK(sc); 1739 if (sc->sc_detached) { 1740 RUM_UNLOCK(sc); 1741 return; 1742 } 1743 RUM_UNLOCK(sc); 1744 1745 if (ic->ic_nrunning > 0) { 1746 if (rum_init(sc) == 0) 1747 ieee80211_start_all(ic); 1748 else 1749 ieee80211_stop(vap); 1750 } else 1751 rum_stop(sc); 1752} 1753 1754static void 1755rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1756{ 1757 struct usb_device_request req; 1758 usb_error_t error; 1759 1760 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1761 req.bRequest = RT2573_READ_EEPROM; 1762 USETW(req.wValue, 0); 1763 USETW(req.wIndex, addr); 1764 USETW(req.wLength, len); 1765 1766 error = rum_do_request(sc, &req, buf); 1767 if (error != 0) { 1768 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1769 usbd_errstr(error)); 1770 } 1771} 1772 1773static uint32_t 1774rum_read(struct rum_softc *sc, uint16_t reg) 1775{ 1776 uint32_t val; 1777 1778 rum_read_multi(sc, reg, &val, sizeof val); 1779 1780 return le32toh(val); 1781} 1782 1783static void 1784rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1785{ 1786 struct usb_device_request req; 1787 usb_error_t error; 1788 1789 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1790 req.bRequest = RT2573_READ_MULTI_MAC; 1791 USETW(req.wValue, 0); 1792 USETW(req.wIndex, reg); 1793 USETW(req.wLength, len); 1794 1795 error = rum_do_request(sc, &req, buf); 1796 if (error != 0) { 1797 device_printf(sc->sc_dev, 1798 "could not multi read MAC register: %s\n", 1799 usbd_errstr(error)); 1800 } 1801} 1802 1803static usb_error_t 1804rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1805{ 1806 uint32_t tmp = htole32(val); 1807 1808 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1809} 1810 1811static usb_error_t 1812rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1813{ 1814 struct usb_device_request req; 1815 usb_error_t error; 1816 size_t offset; 1817 1818 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1819 req.bRequest = RT2573_WRITE_MULTI_MAC; 1820 USETW(req.wValue, 0); 1821 1822 /* write at most 64 bytes at a time */ 1823 for (offset = 0; offset < len; offset += 64) { 1824 USETW(req.wIndex, reg + offset); 1825 USETW(req.wLength, MIN(len - offset, 64)); 1826 1827 error = rum_do_request(sc, &req, (char *)buf + offset); 1828 if (error != 0) { 1829 device_printf(sc->sc_dev, 1830 "could not multi write MAC register: %s\n", 1831 usbd_errstr(error)); 1832 return (error); 1833 } 1834 } 1835 1836 return (USB_ERR_NORMAL_COMPLETION); 1837} 1838 1839static usb_error_t 1840rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1841{ 1842 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1843} 1844 1845static usb_error_t 1846rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1847{ 1848 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1849} 1850 1851static usb_error_t 1852rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1853{ 1854 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1855} 1856 1857static int 1858rum_bbp_busy(struct rum_softc *sc) 1859{ 1860 int ntries; 1861 1862 for (ntries = 0; ntries < 100; ntries++) { 1863 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1864 break; 1865 if (rum_pause(sc, hz / 100)) 1866 break; 1867 } 1868 if (ntries == 100) 1869 return (ETIMEDOUT); 1870 1871 return (0); 1872} 1873 1874static void 1875rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1876{ 1877 uint32_t tmp; 1878 1879 DPRINTFN(2, "reg=0x%08x\n", reg); 1880 1881 if (rum_bbp_busy(sc) != 0) { 1882 device_printf(sc->sc_dev, "could not write to BBP\n"); 1883 return; 1884 } 1885 1886 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1887 rum_write(sc, RT2573_PHY_CSR3, tmp); 1888} 1889 1890static uint8_t 1891rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1892{ 1893 uint32_t val; 1894 int ntries; 1895 1896 DPRINTFN(2, "reg=0x%08x\n", reg); 1897 1898 if (rum_bbp_busy(sc) != 0) { 1899 device_printf(sc->sc_dev, "could not read BBP\n"); 1900 return 0; 1901 } 1902 1903 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1904 rum_write(sc, RT2573_PHY_CSR3, val); 1905 1906 for (ntries = 0; ntries < 100; ntries++) { 1907 val = rum_read(sc, RT2573_PHY_CSR3); 1908 if (!(val & RT2573_BBP_BUSY)) 1909 return val & 0xff; 1910 if (rum_pause(sc, hz / 100)) 1911 break; 1912 } 1913 1914 device_printf(sc->sc_dev, "could not read BBP\n"); 1915 return 0; 1916} 1917 1918static void 1919rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1920{ 1921 uint32_t tmp; 1922 int ntries; 1923 1924 for (ntries = 0; ntries < 100; ntries++) { 1925 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1926 break; 1927 if (rum_pause(sc, hz / 100)) 1928 break; 1929 } 1930 if (ntries == 100) { 1931 device_printf(sc->sc_dev, "could not write to RF\n"); 1932 return; 1933 } 1934 1935 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1936 (reg & 3); 1937 rum_write(sc, RT2573_PHY_CSR4, tmp); 1938 1939 /* remember last written value in sc */ 1940 sc->rf_regs[reg] = val; 1941 1942 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1943} 1944 1945static void 1946rum_select_antenna(struct rum_softc *sc) 1947{ 1948 uint8_t bbp4, bbp77; 1949 uint32_t tmp; 1950 1951 bbp4 = rum_bbp_read(sc, 4); 1952 bbp77 = rum_bbp_read(sc, 77); 1953 1954 /* TBD */ 1955 1956 /* make sure Rx is disabled before switching antenna */ 1957 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1958 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1959 1960 rum_bbp_write(sc, 4, bbp4); 1961 rum_bbp_write(sc, 77, bbp77); 1962 1963 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1964} 1965 1966/* 1967 * Enable multi-rate retries for frames sent at OFDM rates. 1968 * In 802.11b/g mode, allow fallback to CCK rates. 1969 */ 1970static void 1971rum_enable_mrr(struct rum_softc *sc) 1972{ 1973 struct ieee80211com *ic = &sc->sc_ic; 1974 1975 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1976 rum_setbits(sc, RT2573_TXRX_CSR4, 1977 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1978 } else { 1979 rum_modbits(sc, RT2573_TXRX_CSR4, 1980 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1981 } 1982} 1983 1984static void 1985rum_set_txpreamble(struct rum_softc *sc) 1986{ 1987 struct ieee80211com *ic = &sc->sc_ic; 1988 1989 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1990 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1991 else 1992 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1993} 1994 1995static void 1996rum_set_basicrates(struct rum_softc *sc) 1997{ 1998 struct ieee80211com *ic = &sc->sc_ic; 1999 2000 /* update basic rate set */ 2001 if (ic->ic_curmode == IEEE80211_MODE_11B) { 2002 /* 11b basic rates: 1, 2Mbps */ 2003 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 2004 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 2005 /* 11a basic rates: 6, 12, 24Mbps */ 2006 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 2007 } else { 2008 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 2009 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 2010 } 2011} 2012 2013/* 2014 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 2015 * driver. 2016 */ 2017static void 2018rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 2019{ 2020 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 2021 2022 /* update all BBP registers that depend on the band */ 2023 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 2024 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 2025 if (IEEE80211_IS_CHAN_5GHZ(c)) { 2026 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 2027 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 2028 } 2029 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 2030 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 2031 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 2032 } 2033 2034 sc->bbp17 = bbp17; 2035 rum_bbp_write(sc, 17, bbp17); 2036 rum_bbp_write(sc, 96, bbp96); 2037 rum_bbp_write(sc, 104, bbp104); 2038 2039 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 2040 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 2041 rum_bbp_write(sc, 75, 0x80); 2042 rum_bbp_write(sc, 86, 0x80); 2043 rum_bbp_write(sc, 88, 0x80); 2044 } 2045 2046 rum_bbp_write(sc, 35, bbp35); 2047 rum_bbp_write(sc, 97, bbp97); 2048 rum_bbp_write(sc, 98, bbp98); 2049 2050 if (IEEE80211_IS_CHAN_2GHZ(c)) { 2051 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 2052 RT2573_PA_PE_5GHZ); 2053 } else { 2054 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 2055 RT2573_PA_PE_2GHZ); 2056 } 2057} 2058 2059static void 2060rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 2061{ 2062 struct ieee80211com *ic = &sc->sc_ic; 2063 const struct rfprog *rfprog; 2064 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 2065 int8_t power; 2066 int i, chan; 2067 2068 chan = ieee80211_chan2ieee(ic, c); 2069 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 2070 return; 2071 2072 /* select the appropriate RF settings based on what EEPROM says */ 2073 rfprog = (sc->rf_rev == RT2573_RF_5225 || 2074 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 2075 2076 /* find the settings for this channel (we know it exists) */ 2077 for (i = 0; rfprog[i].chan != chan; i++); 2078 2079 power = sc->txpow[i]; 2080 if (power < 0) { 2081 bbp94 += power; 2082 power = 0; 2083 } else if (power > 31) { 2084 bbp94 += power - 31; 2085 power = 31; 2086 } 2087 2088 /* 2089 * If we are switching from the 2GHz band to the 5GHz band or 2090 * vice-versa, BBP registers need to be reprogrammed. 2091 */ 2092 if (c->ic_flags != ic->ic_curchan->ic_flags) { 2093 rum_select_band(sc, c); 2094 rum_select_antenna(sc); 2095 } 2096 ic->ic_curchan = c; 2097 2098 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2099 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2100 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 2101 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2102 2103 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2104 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2105 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 2106 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2107 2108 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2109 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2110 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 2111 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2112 2113 rum_pause(sc, hz / 100); 2114 2115 /* enable smart mode for MIMO-capable RFs */ 2116 bbp3 = rum_bbp_read(sc, 3); 2117 2118 bbp3 &= ~RT2573_SMART_MODE; 2119 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 2120 bbp3 |= RT2573_SMART_MODE; 2121 2122 rum_bbp_write(sc, 3, bbp3); 2123 2124 if (bbp94 != RT2573_BBPR94_DEFAULT) 2125 rum_bbp_write(sc, 94, bbp94); 2126 2127 /* give the chip some extra time to do the switchover */ 2128 rum_pause(sc, hz / 100); 2129} 2130 2131static void 2132rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap) 2133{ 2134 const struct ieee80211_txparam *tp; 2135 struct ieee80211_node *ni = vap->iv_bss; 2136 struct rum_vap *rvp = RUM_VAP(vap); 2137 2138 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 2139 rvp->maxretry = tp->maxretry < 0xf ? tp->maxretry : 0xf; 2140 2141 rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) | 2142 RT2573_LONG_RETRY(rvp->maxretry), 2143 RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK); 2144} 2145 2146/* 2147 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 2148 * and HostAP operating modes. 2149 */ 2150static int 2151rum_enable_tsf_sync(struct rum_softc *sc) 2152{ 2153 struct ieee80211com *ic = &sc->sc_ic; 2154 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2155 uint32_t tmp; 2156 uint16_t bintval; 2157 2158 if (vap->iv_opmode != IEEE80211_M_STA) { 2159 /* 2160 * Change default 16ms TBTT adjustment to 8ms. 2161 * Must be done before enabling beacon generation. 2162 */ 2163 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 2164 return EIO; 2165 } 2166 2167 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 2168 2169 /* set beacon interval (in 1/16ms unit) */ 2170 bintval = vap->iv_bss->ni_intval; 2171 tmp |= bintval * 16; 2172 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 2173 2174 switch (vap->iv_opmode) { 2175 case IEEE80211_M_STA: 2176 /* 2177 * Local TSF is always updated with remote TSF on beacon 2178 * reception. 2179 */ 2180 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 2181 break; 2182 case IEEE80211_M_IBSS: 2183 /* 2184 * Local TSF is updated with remote TSF on beacon reception 2185 * only if the remote TSF is greater than local TSF. 2186 */ 2187 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 2188 tmp |= RT2573_BCN_TX_EN; 2189 break; 2190 case IEEE80211_M_HOSTAP: 2191 /* SYNC with nobody */ 2192 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 2193 tmp |= RT2573_BCN_TX_EN; 2194 break; 2195 default: 2196 device_printf(sc->sc_dev, 2197 "Enabling TSF failed. undefined opmode %d\n", 2198 vap->iv_opmode); 2199 return EINVAL; 2200 } 2201 2202 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 2203 return EIO; 2204 2205 /* refresh current sleep time */ 2206 return (rum_set_sleep_time(sc, bintval)); 2207} 2208 2209static void 2210rum_enable_tsf(struct rum_softc *sc) 2211{ 2212 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 2213 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 2214} 2215 2216static void 2217rum_abort_tsf_sync(struct rum_softc *sc) 2218{ 2219 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 2220} 2221 2222static void 2223rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 2224{ 2225 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 2226} 2227 2228static void 2229rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id) 2230{ 2231 struct ieee80211com *ic = &sc->sc_ic; 2232 uint8_t slottime; 2233 2234 slottime = IEEE80211_GET_SLOTTIME(ic); 2235 2236 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 2237 2238 DPRINTF("setting slot time to %uus\n", slottime); 2239} 2240 2241static void 2242rum_update_slot(struct ieee80211com *ic) 2243{ 2244 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb); 2245} 2246 2247static int 2248rum_wme_update(struct ieee80211com *ic) 2249{ 2250 const struct wmeParams *chanp = 2251 ic->ic_wme.wme_chanParams.cap_wmeParams; 2252 struct rum_softc *sc = ic->ic_softc; 2253 int error = 0; 2254 2255 RUM_LOCK(sc); 2256 error = rum_write(sc, RT2573_AIFSN_CSR, 2257 chanp[WME_AC_VO].wmep_aifsn << 12 | 2258 chanp[WME_AC_VI].wmep_aifsn << 8 | 2259 chanp[WME_AC_BK].wmep_aifsn << 4 | 2260 chanp[WME_AC_BE].wmep_aifsn); 2261 if (error) 2262 goto print_err; 2263 error = rum_write(sc, RT2573_CWMIN_CSR, 2264 chanp[WME_AC_VO].wmep_logcwmin << 12 | 2265 chanp[WME_AC_VI].wmep_logcwmin << 8 | 2266 chanp[WME_AC_BK].wmep_logcwmin << 4 | 2267 chanp[WME_AC_BE].wmep_logcwmin); 2268 if (error) 2269 goto print_err; 2270 error = rum_write(sc, RT2573_CWMAX_CSR, 2271 chanp[WME_AC_VO].wmep_logcwmax << 12 | 2272 chanp[WME_AC_VI].wmep_logcwmax << 8 | 2273 chanp[WME_AC_BK].wmep_logcwmax << 4 | 2274 chanp[WME_AC_BE].wmep_logcwmax); 2275 if (error) 2276 goto print_err; 2277 error = rum_write(sc, RT2573_TXOP01_CSR, 2278 chanp[WME_AC_BK].wmep_txopLimit << 16 | 2279 chanp[WME_AC_BE].wmep_txopLimit); 2280 if (error) 2281 goto print_err; 2282 error = rum_write(sc, RT2573_TXOP23_CSR, 2283 chanp[WME_AC_VO].wmep_txopLimit << 16 | 2284 chanp[WME_AC_VI].wmep_txopLimit); 2285 if (error) 2286 goto print_err; 2287 2288 memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC); 2289 2290print_err: 2291 RUM_UNLOCK(sc); 2292 if (error != 0) { 2293 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n", 2294 __func__, error); 2295 } 2296 2297 return (error); 2298} 2299 2300static void 2301rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 2302{ 2303 2304 rum_write(sc, RT2573_MAC_CSR4, 2305 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 2306 rum_write(sc, RT2573_MAC_CSR5, 2307 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 2308} 2309 2310static void 2311rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 2312{ 2313 2314 rum_write(sc, RT2573_MAC_CSR2, 2315 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 2316 rum_write(sc, RT2573_MAC_CSR3, 2317 addr[4] | addr[5] << 8 | 0xff << 16); 2318} 2319 2320static void 2321rum_setpromisc(struct rum_softc *sc) 2322{ 2323 struct ieee80211com *ic = &sc->sc_ic; 2324 2325 if (ic->ic_promisc == 0) 2326 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2327 else 2328 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2329 2330 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 2331 "entering" : "leaving"); 2332} 2333 2334static void 2335rum_update_promisc(struct ieee80211com *ic) 2336{ 2337 struct rum_softc *sc = ic->ic_softc; 2338 2339 RUM_LOCK(sc); 2340 if (sc->sc_running) 2341 rum_setpromisc(sc); 2342 RUM_UNLOCK(sc); 2343} 2344 2345static void 2346rum_update_mcast(struct ieee80211com *ic) 2347{ 2348 /* Ignore. */ 2349} 2350 2351static const char * 2352rum_get_rf(int rev) 2353{ 2354 switch (rev) { 2355 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 2356 case RT2573_RF_2528: return "RT2528"; 2357 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 2358 case RT2573_RF_5226: return "RT5226"; 2359 default: return "unknown"; 2360 } 2361} 2362 2363static void 2364rum_read_eeprom(struct rum_softc *sc) 2365{ 2366 uint16_t val; 2367#ifdef RUM_DEBUG 2368 int i; 2369#endif 2370 2371 /* read MAC address */ 2372 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 2373 2374 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 2375 val = le16toh(val); 2376 sc->rf_rev = (val >> 11) & 0x1f; 2377 sc->hw_radio = (val >> 10) & 0x1; 2378 sc->rx_ant = (val >> 4) & 0x3; 2379 sc->tx_ant = (val >> 2) & 0x3; 2380 sc->nb_ant = val & 0x3; 2381 2382 DPRINTF("RF revision=%d\n", sc->rf_rev); 2383 2384 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 2385 val = le16toh(val); 2386 sc->ext_5ghz_lna = (val >> 6) & 0x1; 2387 sc->ext_2ghz_lna = (val >> 4) & 0x1; 2388 2389 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 2390 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 2391 2392 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 2393 val = le16toh(val); 2394 if ((val & 0xff) != 0xff) 2395 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 2396 2397 /* Only [-10, 10] is valid */ 2398 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 2399 sc->rssi_2ghz_corr = 0; 2400 2401 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 2402 val = le16toh(val); 2403 if ((val & 0xff) != 0xff) 2404 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 2405 2406 /* Only [-10, 10] is valid */ 2407 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 2408 sc->rssi_5ghz_corr = 0; 2409 2410 if (sc->ext_2ghz_lna) 2411 sc->rssi_2ghz_corr -= 14; 2412 if (sc->ext_5ghz_lna) 2413 sc->rssi_5ghz_corr -= 14; 2414 2415 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2416 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2417 2418 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2419 val = le16toh(val); 2420 if ((val & 0xff) != 0xff) 2421 sc->rffreq = val & 0xff; 2422 2423 DPRINTF("RF freq=%d\n", sc->rffreq); 2424 2425 /* read Tx power for all a/b/g channels */ 2426 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2427 /* XXX default Tx power for 802.11a channels */ 2428 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2429#ifdef RUM_DEBUG 2430 for (i = 0; i < 14; i++) 2431 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2432#endif 2433 2434 /* read default values for BBP registers */ 2435 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2436#ifdef RUM_DEBUG 2437 for (i = 0; i < 14; i++) { 2438 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2439 continue; 2440 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2441 sc->bbp_prom[i].val); 2442 } 2443#endif 2444} 2445 2446static int 2447rum_bbp_wakeup(struct rum_softc *sc) 2448{ 2449 unsigned int ntries; 2450 2451 for (ntries = 0; ntries < 100; ntries++) { 2452 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2453 break; 2454 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2455 if (rum_pause(sc, hz / 100)) 2456 break; 2457 } 2458 if (ntries == 100) { 2459 device_printf(sc->sc_dev, 2460 "timeout waiting for BBP/RF to wakeup\n"); 2461 return (ETIMEDOUT); 2462 } 2463 2464 return (0); 2465} 2466 2467static int 2468rum_bbp_init(struct rum_softc *sc) 2469{ 2470 int i, ntries; 2471 2472 /* wait for BBP to be ready */ 2473 for (ntries = 0; ntries < 100; ntries++) { 2474 const uint8_t val = rum_bbp_read(sc, 0); 2475 if (val != 0 && val != 0xff) 2476 break; 2477 if (rum_pause(sc, hz / 100)) 2478 break; 2479 } 2480 if (ntries == 100) { 2481 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2482 return EIO; 2483 } 2484 2485 /* initialize BBP registers to default values */ 2486 for (i = 0; i < nitems(rum_def_bbp); i++) 2487 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2488 2489 /* write vendor-specific BBP values (from EEPROM) */ 2490 for (i = 0; i < 16; i++) { 2491 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2492 continue; 2493 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2494 } 2495 2496 return 0; 2497} 2498 2499static void 2500rum_clr_shkey_regs(struct rum_softc *sc) 2501{ 2502 rum_write(sc, RT2573_SEC_CSR0, 0); 2503 rum_write(sc, RT2573_SEC_CSR1, 0); 2504 rum_write(sc, RT2573_SEC_CSR5, 0); 2505} 2506 2507static int 2508rum_init(struct rum_softc *sc) 2509{ 2510 struct ieee80211com *ic = &sc->sc_ic; 2511 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2512 uint32_t tmp; 2513 int i, ret; 2514 2515 RUM_LOCK(sc); 2516 if (sc->sc_running) { 2517 ret = 0; 2518 goto end; 2519 } 2520 2521 /* initialize MAC registers to default values */ 2522 for (i = 0; i < nitems(rum_def_mac); i++) 2523 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2524 2525 /* reset some WME parameters to default values */ 2526 sc->wme_params[0].wmep_aifsn = 2; 2527 sc->wme_params[0].wmep_logcwmin = 4; 2528 sc->wme_params[0].wmep_logcwmax = 10; 2529 2530 /* set host ready */ 2531 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2532 rum_write(sc, RT2573_MAC_CSR1, 0); 2533 2534 /* wait for BBP/RF to wakeup */ 2535 if ((ret = rum_bbp_wakeup(sc)) != 0) 2536 goto end; 2537 2538 if ((ret = rum_bbp_init(sc)) != 0) 2539 goto end; 2540 2541 /* select default channel */ 2542 rum_select_band(sc, ic->ic_curchan); 2543 rum_select_antenna(sc); 2544 rum_set_chan(sc, ic->ic_curchan); 2545 2546 /* clear STA registers */ 2547 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2548 2549 /* clear security registers (if required) */ 2550 if (sc->sc_clr_shkeys == 0) { 2551 rum_clr_shkey_regs(sc); 2552 sc->sc_clr_shkeys = 1; 2553 } 2554 2555 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2556 2557 /* initialize ASIC */ 2558 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2559 2560 /* 2561 * Allocate Tx and Rx xfer queues. 2562 */ 2563 rum_setup_tx_list(sc); 2564 2565 /* update Rx filter */ 2566 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2567 2568 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2569 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2570 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2571 RT2573_DROP_ACKCTS; 2572 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2573 tmp |= RT2573_DROP_TODS; 2574 if (ic->ic_promisc == 0) 2575 tmp |= RT2573_DROP_NOT_TO_ME; 2576 } 2577 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2578 2579 sc->sc_running = 1; 2580 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2581 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2582 2583end: RUM_UNLOCK(sc); 2584 2585 if (ret != 0) 2586 rum_stop(sc); 2587 2588 return ret; 2589} 2590 2591static void 2592rum_stop(struct rum_softc *sc) 2593{ 2594 2595 RUM_LOCK(sc); 2596 if (!sc->sc_running) { 2597 RUM_UNLOCK(sc); 2598 return; 2599 } 2600 sc->sc_running = 0; 2601 RUM_UNLOCK(sc); 2602 2603 /* 2604 * Drain the USB transfers, if not already drained: 2605 */ 2606 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2607 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2608 2609 RUM_LOCK(sc); 2610 rum_unsetup_tx_list(sc); 2611 2612 /* disable Rx */ 2613 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2614 2615 /* reset ASIC */ 2616 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2617 rum_write(sc, RT2573_MAC_CSR1, 0); 2618 RUM_UNLOCK(sc); 2619} 2620 2621static void 2622rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2623{ 2624 uint16_t reg = RT2573_MCU_CODE_BASE; 2625 usb_error_t err; 2626 2627 /* copy firmware image into NIC */ 2628 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2629 err = rum_write(sc, reg, UGETDW(ucode)); 2630 if (err) { 2631 /* firmware already loaded ? */ 2632 device_printf(sc->sc_dev, "Firmware load " 2633 "failure! (ignored)\n"); 2634 break; 2635 } 2636 } 2637 2638 err = rum_do_mcu_request(sc, RT2573_MCU_RUN); 2639 if (err != USB_ERR_NORMAL_COMPLETION) { 2640 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2641 usbd_errstr(err)); 2642 } 2643 2644 /* give the chip some time to boot */ 2645 rum_pause(sc, hz / 8); 2646} 2647 2648static int 2649rum_set_sleep_time(struct rum_softc *sc, uint16_t bintval) 2650{ 2651 struct ieee80211com *ic = &sc->sc_ic; 2652 usb_error_t uerror; 2653 int exp, delay; 2654 2655 RUM_LOCK_ASSERT(sc); 2656 2657 exp = ic->ic_lintval / bintval; 2658 delay = ic->ic_lintval % bintval; 2659 2660 if (exp > RT2573_TBCN_EXP_MAX) 2661 exp = RT2573_TBCN_EXP_MAX; 2662 if (delay > RT2573_TBCN_DELAY_MAX) 2663 delay = RT2573_TBCN_DELAY_MAX; 2664 2665 uerror = rum_modbits(sc, RT2573_MAC_CSR11, 2666 RT2573_TBCN_EXP(exp) | 2667 RT2573_TBCN_DELAY(delay), 2668 RT2573_TBCN_EXP(RT2573_TBCN_EXP_MAX) | 2669 RT2573_TBCN_DELAY(RT2573_TBCN_DELAY_MAX)); 2670 2671 if (uerror != USB_ERR_NORMAL_COMPLETION) 2672 return (EIO); 2673 2674 sc->sc_sleep_time = IEEE80211_TU_TO_TICKS(exp * bintval + delay); 2675 2676 return (0); 2677} 2678 2679static int 2680rum_reset(struct ieee80211vap *vap, u_long cmd) 2681{ 2682 struct ieee80211com *ic = vap->iv_ic; 2683 struct ieee80211_node *ni; 2684 struct rum_softc *sc = ic->ic_softc; 2685 int error; 2686 2687 switch (cmd) { 2688 case IEEE80211_IOC_POWERSAVE: 2689 error = 0; 2690 break; 2691 case IEEE80211_IOC_POWERSAVESLEEP: 2692 ni = ieee80211_ref_node(vap->iv_bss); 2693 2694 RUM_LOCK(sc); 2695 error = rum_set_sleep_time(sc, ni->ni_intval); 2696 if (vap->iv_state == IEEE80211_S_SLEEP) { 2697 /* Use new values for wakeup timer. */ 2698 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 2699 rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 2700 } 2701 /* XXX send reassoc */ 2702 RUM_UNLOCK(sc); 2703 2704 ieee80211_free_node(ni); 2705 break; 2706 default: 2707 error = ENETRESET; 2708 break; 2709 } 2710 2711 return (error); 2712} 2713 2714static int 2715rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2716{ 2717 struct ieee80211com *ic = vap->iv_ic; 2718 struct rum_vap *rvp = RUM_VAP(vap); 2719 struct mbuf *m = rvp->bcn_mbuf; 2720 const struct ieee80211_txparam *tp; 2721 struct rum_tx_desc desc; 2722 2723 RUM_LOCK_ASSERT(sc); 2724 2725 if (m == NULL) 2726 return EINVAL; 2727 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2728 return EINVAL; 2729 2730 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2731 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP, 2732 RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate); 2733 2734 /* copy the Tx descriptor into NIC memory */ 2735 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2736 RT2573_TX_DESC_SIZE) != 0) 2737 return EIO; 2738 2739 /* copy beacon header and payload into NIC memory */ 2740 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2741 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2742 return EIO; 2743 2744 return 0; 2745} 2746 2747static int 2748rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2749{ 2750 struct rum_vap *rvp = RUM_VAP(vap); 2751 struct ieee80211_node *ni = vap->iv_bss; 2752 struct mbuf *m; 2753 2754 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2755 return EINVAL; 2756 2757 m = ieee80211_beacon_alloc(ni); 2758 if (m == NULL) 2759 return ENOMEM; 2760 2761 if (rvp->bcn_mbuf != NULL) 2762 m_freem(rvp->bcn_mbuf); 2763 2764 rvp->bcn_mbuf = m; 2765 2766 return (rum_set_beacon(sc, vap)); 2767} 2768 2769static void 2770rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data, 2771 uint8_t rvp_id) 2772{ 2773 struct ieee80211vap *vap = data->vap; 2774 2775 rum_set_beacon(sc, vap); 2776} 2777 2778static void 2779rum_update_beacon(struct ieee80211vap *vap, int item) 2780{ 2781 struct ieee80211com *ic = vap->iv_ic; 2782 struct rum_softc *sc = ic->ic_softc; 2783 struct rum_vap *rvp = RUM_VAP(vap); 2784 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 2785 struct ieee80211_node *ni = vap->iv_bss; 2786 struct mbuf *m = rvp->bcn_mbuf; 2787 int mcast = 0; 2788 2789 RUM_LOCK(sc); 2790 if (m == NULL) { 2791 m = ieee80211_beacon_alloc(ni); 2792 if (m == NULL) { 2793 device_printf(sc->sc_dev, 2794 "%s: could not allocate beacon frame\n", __func__); 2795 RUM_UNLOCK(sc); 2796 return; 2797 } 2798 rvp->bcn_mbuf = m; 2799 } 2800 2801 switch (item) { 2802 case IEEE80211_BEACON_ERP: 2803 rum_update_slot(ic); 2804 break; 2805 case IEEE80211_BEACON_TIM: 2806 mcast = 1; /*TODO*/ 2807 break; 2808 default: 2809 break; 2810 } 2811 RUM_UNLOCK(sc); 2812 2813 setbit(bo->bo_flags, item); 2814 ieee80211_beacon_update(ni, m, mcast); 2815 2816 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb); 2817} 2818 2819static int 2820rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k, 2821 uint16_t base) 2822{ 2823 2824 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen)) 2825 return EIO; 2826 2827 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) { 2828 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE, 2829 k->wk_txmic, 8)) 2830 return EIO; 2831 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8, 2832 k->wk_rxmic, 8)) 2833 return EIO; 2834 } 2835 2836 return 0; 2837} 2838 2839static void 2840rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data, 2841 uint8_t rvp_id) 2842{ 2843 struct ieee80211_key *k = &data->key; 2844 uint8_t mode; 2845 2846 if (sc->sc_clr_shkeys == 0) { 2847 rum_clr_shkey_regs(sc); 2848 sc->sc_clr_shkeys = 1; 2849 } 2850 2851 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2852 if (mode == 0) 2853 goto print_err; 2854 2855 DPRINTFN(1, "setting group key %d for vap %d, mode %d " 2856 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2857 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2858 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2859 2860 /* Install the key. */ 2861 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0) 2862 goto print_err; 2863 2864 /* Set cipher mode. */ 2865 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2866 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX, 2867 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX) 2868 != 0) 2869 goto print_err; 2870 2871 /* Mark this key as valid. */ 2872 if (rum_setbits(sc, RT2573_SEC_CSR0, 2873 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0) 2874 goto print_err; 2875 2876 return; 2877 2878print_err: 2879 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n", 2880 __func__, k->wk_keyix, rvp_id); 2881} 2882 2883static void 2884rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data, 2885 uint8_t rvp_id) 2886{ 2887 struct ieee80211_key *k = &data->key; 2888 2889 DPRINTF("%s: removing group key %d for vap %d\n", __func__, 2890 k->wk_keyix, rvp_id); 2891 rum_clrbits(sc, 2892 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2893 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX); 2894 rum_clrbits(sc, RT2573_SEC_CSR0, 2895 rvp_id * RT2573_SKEY_MAX + k->wk_keyix); 2896} 2897 2898static void 2899rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data, 2900 uint8_t rvp_id) 2901{ 2902 struct ieee80211_key *k = &data->key; 2903 uint8_t buf[IEEE80211_ADDR_LEN + 1]; 2904 uint8_t mode; 2905 2906 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2907 if (mode == 0) 2908 goto print_err; 2909 2910 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d " 2911 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2912 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2913 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2914 2915 /* Install the key. */ 2916 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0) 2917 goto print_err; 2918 2919 IEEE80211_ADDR_COPY(buf, k->wk_macaddr); 2920 buf[IEEE80211_ADDR_LEN] = mode; 2921 2922 /* Set transmitter address and cipher mode. */ 2923 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix), 2924 buf, sizeof buf) != 0) 2925 goto print_err; 2926 2927 /* Enable key table lookup for this vap. */ 2928 if (sc->vap_key_count[rvp_id]++ == 0) 2929 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0) 2930 goto print_err; 2931 2932 /* Mark this key as valid. */ 2933 if (rum_setbits(sc, 2934 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2935 1 << (k->wk_keyix % 32)) != 0) 2936 goto print_err; 2937 2938 return; 2939 2940print_err: 2941 device_printf(sc->sc_dev, 2942 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix, 2943 rvp_id); 2944} 2945 2946static void 2947rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data, 2948 uint8_t rvp_id) 2949{ 2950 struct ieee80211_key *k = &data->key; 2951 2952 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix); 2953 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2954 1 << (k->wk_keyix % 32)); 2955 sc->keys_bmap &= ~(1ULL << k->wk_keyix); 2956 if (--sc->vap_key_count[rvp_id] == 0) 2957 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id); 2958} 2959 2960static int 2961rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 2962 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 2963{ 2964 struct rum_softc *sc = vap->iv_ic->ic_softc; 2965 uint8_t i; 2966 2967 if (!(&vap->iv_nw_keys[0] <= k && 2968 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 2969 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 2970 RUM_LOCK(sc); 2971 for (i = 0; i < RT2573_ADDR_MAX; i++) { 2972 if ((sc->keys_bmap & (1ULL << i)) == 0) { 2973 sc->keys_bmap |= (1ULL << i); 2974 *keyix = i; 2975 break; 2976 } 2977 } 2978 RUM_UNLOCK(sc); 2979 if (i == RT2573_ADDR_MAX) { 2980 device_printf(sc->sc_dev, 2981 "%s: no free space in the key table\n", 2982 __func__); 2983 return 0; 2984 } 2985 } else 2986 *keyix = 0; 2987 } else { 2988 *keyix = k - vap->iv_nw_keys; 2989 } 2990 *rxkeyix = *keyix; 2991 return 1; 2992} 2993 2994static int 2995rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 2996{ 2997 struct rum_softc *sc = vap->iv_ic->ic_softc; 2998 int group; 2999 3000 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 3001 /* Not for us. */ 3002 return 1; 3003 } 3004 3005 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 3006 3007 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 3008 group ? rum_group_key_set_cb : rum_pair_key_set_cb); 3009} 3010 3011static int 3012rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 3013{ 3014 struct rum_softc *sc = vap->iv_ic->ic_softc; 3015 int group; 3016 3017 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 3018 /* Not for us. */ 3019 return 1; 3020 } 3021 3022 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 3023 3024 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 3025 group ? rum_group_key_del_cb : rum_pair_key_del_cb); 3026} 3027 3028static int 3029rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3030 const struct ieee80211_bpf_params *params) 3031{ 3032 struct rum_softc *sc = ni->ni_ic->ic_softc; 3033 int ret; 3034 3035 RUM_LOCK(sc); 3036 /* prevent management frames from being sent if we're not ready */ 3037 if (!sc->sc_running) { 3038 ret = ENETDOWN; 3039 goto bad; 3040 } 3041 if (sc->tx_nfree < RUM_TX_MINFREE) { 3042 ret = EIO; 3043 goto bad; 3044 } 3045 3046 if (params == NULL) { 3047 /* 3048 * Legacy path; interpret frame contents to decide 3049 * precisely how to send the frame. 3050 */ 3051 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 3052 goto bad; 3053 } else { 3054 /* 3055 * Caller supplied explicit parameters to use in 3056 * sending the frame. 3057 */ 3058 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 3059 goto bad; 3060 } 3061 RUM_UNLOCK(sc); 3062 3063 return 0; 3064bad: 3065 RUM_UNLOCK(sc); 3066 m_freem(m); 3067 return ret; 3068} 3069 3070static void 3071rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 3072{ 3073 struct ieee80211vap *vap = ni->ni_vap; 3074 struct rum_vap *rvp = RUM_VAP(vap); 3075 3076 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 3077 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 3078 3079 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 3080} 3081 3082static void 3083rum_ratectl_timeout(void *arg) 3084{ 3085 struct rum_vap *rvp = arg; 3086 struct ieee80211vap *vap = &rvp->vap; 3087 struct ieee80211com *ic = vap->iv_ic; 3088 3089 ieee80211_runtask(ic, &rvp->ratectl_task); 3090} 3091 3092static void 3093rum_ratectl_task(void *arg, int pending) 3094{ 3095 struct rum_vap *rvp = arg; 3096 struct ieee80211vap *vap = &rvp->vap; 3097 struct rum_softc *sc = vap->iv_ic->ic_softc; 3098 struct ieee80211_node *ni; 3099 int ok[3], fail; 3100 int sum, success, retrycnt; 3101 3102 RUM_LOCK(sc); 3103 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */ 3104 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 3105 3106 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */ 3107 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */ 3108 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */ 3109 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 3110 3111 success = ok[0] + ok[1] + ok[2]; 3112 sum = success + fail; 3113 /* XXX at least */ 3114 retrycnt = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1); 3115 3116 if (sum != 0) { 3117 ni = ieee80211_ref_node(vap->iv_bss); 3118 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 3119 (void) ieee80211_ratectl_rate(ni, NULL, 0); 3120 ieee80211_free_node(ni); 3121 } 3122 3123 /* count TX retry-fail as Tx errors */ 3124 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail); 3125 3126 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 3127 RUM_UNLOCK(sc); 3128} 3129 3130static void 3131rum_scan_start(struct ieee80211com *ic) 3132{ 3133 struct rum_softc *sc = ic->ic_softc; 3134 3135 RUM_LOCK(sc); 3136 rum_abort_tsf_sync(sc); 3137 rum_set_bssid(sc, ieee80211broadcastaddr); 3138 RUM_UNLOCK(sc); 3139 3140} 3141 3142static void 3143rum_scan_end(struct ieee80211com *ic) 3144{ 3145 struct rum_softc *sc = ic->ic_softc; 3146 3147 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) { 3148 RUM_LOCK(sc); 3149 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 3150 rum_enable_tsf_sync(sc); 3151 else 3152 rum_enable_tsf(sc); 3153 rum_set_bssid(sc, sc->sc_bssid); 3154 RUM_UNLOCK(sc); 3155 } 3156} 3157 3158static void 3159rum_set_channel(struct ieee80211com *ic) 3160{ 3161 struct rum_softc *sc = ic->ic_softc; 3162 3163 RUM_LOCK(sc); 3164 rum_set_chan(sc, ic->ic_curchan); 3165 RUM_UNLOCK(sc); 3166} 3167 3168static int 3169rum_get_rssi(struct rum_softc *sc, uint8_t raw) 3170{ 3171 struct ieee80211com *ic = &sc->sc_ic; 3172 int lna, agc, rssi; 3173 3174 lna = (raw >> 5) & 0x3; 3175 agc = raw & 0x1f; 3176 3177 if (lna == 0) { 3178 /* 3179 * No RSSI mapping 3180 * 3181 * NB: Since RSSI is relative to noise floor, -1 is 3182 * adequate for caller to know error happened. 3183 */ 3184 return -1; 3185 } 3186 3187 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 3188 3189 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 3190 rssi += sc->rssi_2ghz_corr; 3191 3192 if (lna == 1) 3193 rssi -= 64; 3194 else if (lna == 2) 3195 rssi -= 74; 3196 else if (lna == 3) 3197 rssi -= 90; 3198 } else { 3199 rssi += sc->rssi_5ghz_corr; 3200 3201 if (!sc->ext_5ghz_lna && lna != 1) 3202 rssi += 4; 3203 3204 if (lna == 1) 3205 rssi -= 64; 3206 else if (lna == 2) 3207 rssi -= 86; 3208 else if (lna == 3) 3209 rssi -= 100; 3210 } 3211 return rssi; 3212} 3213 3214static int 3215rum_pause(struct rum_softc *sc, int timeout) 3216{ 3217 3218 usb_pause_mtx(&sc->sc_mtx, timeout); 3219 return (0); 3220} 3221 3222static device_method_t rum_methods[] = { 3223 /* Device interface */ 3224 DEVMETHOD(device_probe, rum_match), 3225 DEVMETHOD(device_attach, rum_attach), 3226 DEVMETHOD(device_detach, rum_detach), 3227 DEVMETHOD_END 3228}; 3229 3230static driver_t rum_driver = { 3231 .name = "rum", 3232 .methods = rum_methods, 3233 .size = sizeof(struct rum_softc), 3234}; 3235 3236static devclass_t rum_devclass; 3237 3238DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 3239MODULE_DEPEND(rum, wlan, 1, 1, 1); 3240MODULE_DEPEND(rum, usb, 1, 1, 1); 3241MODULE_VERSION(rum, 1); 3242USB_PNP_HOST_INFO(rum_devs); 3243