1/* $FreeBSD: stable/11/sys/dev/usb/wlan/if_rum.c 345635 2019-03-28 09:18:22Z 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: stable/11/sys/dev/usb/wlan/if_rum.c 345635 2019-03-28 09:18:22Z 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 <net/bpf.h> 46#include <net/if.h> 47#include <net/if_var.h> 48#include <net/if_arp.h> 49#include <net/ethernet.h> 50#include <net/if_dl.h> 51#include <net/if_media.h> 52#include <net/if_types.h> 53 54#ifdef INET 55#include <netinet/in.h> 56#include <netinet/in_systm.h> 57#include <netinet/in_var.h> 58#include <netinet/if_ether.h> 59#include <netinet/ip.h> 60#endif 61 62#include <net80211/ieee80211_var.h> 63#include <net80211/ieee80211_regdomain.h> 64#include <net80211/ieee80211_radiotap.h> 65#include <net80211/ieee80211_ratectl.h> 66 67#include <dev/usb/usb.h> 68#include <dev/usb/usbdi.h> 69#include "usbdevs.h" 70 71#define USB_DEBUG_VAR rum_debug 72#include <dev/usb/usb_debug.h> 73 74#include <dev/usb/wlan/if_rumreg.h> 75#include <dev/usb/wlan/if_rumvar.h> 76#include <dev/usb/wlan/if_rumfw.h> 77 78#ifdef USB_DEBUG 79static int rum_debug = 0; 80 81static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 82SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0, 83 "Debug level"); 84#endif 85 86static const STRUCT_USB_HOST_ID rum_devs[] = { 87#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 88 RUM_DEV(ABOCOM, HWU54DM), 89 RUM_DEV(ABOCOM, RT2573_2), 90 RUM_DEV(ABOCOM, RT2573_3), 91 RUM_DEV(ABOCOM, RT2573_4), 92 RUM_DEV(ABOCOM, WUG2700), 93 RUM_DEV(AMIT, CGWLUSB2GO), 94 RUM_DEV(ASUS, RT2573_1), 95 RUM_DEV(ASUS, RT2573_2), 96 RUM_DEV(BELKIN, F5D7050A), 97 RUM_DEV(BELKIN, F5D9050V3), 98 RUM_DEV(CISCOLINKSYS, WUSB54GC), 99 RUM_DEV(CISCOLINKSYS, WUSB54GR), 100 RUM_DEV(CONCEPTRONIC2, C54RU2), 101 RUM_DEV(COREGA, CGWLUSB2GL), 102 RUM_DEV(COREGA, CGWLUSB2GPX), 103 RUM_DEV(DICKSMITH, CWD854F), 104 RUM_DEV(DICKSMITH, RT2573), 105 RUM_DEV(EDIMAX, EW7318USG), 106 RUM_DEV(DLINK2, DWLG122C1), 107 RUM_DEV(DLINK2, WUA1340), 108 RUM_DEV(DLINK2, DWA111), 109 RUM_DEV(DLINK2, DWA110), 110 RUM_DEV(GIGABYTE, GNWB01GS), 111 RUM_DEV(GIGABYTE, GNWI05GS), 112 RUM_DEV(GIGASET, RT2573), 113 RUM_DEV(GOODWAY, RT2573), 114 RUM_DEV(GUILLEMOT, HWGUSB254LB), 115 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 116 RUM_DEV(HUAWEI3COM, WUB320G), 117 RUM_DEV(MELCO, G54HP), 118 RUM_DEV(MELCO, SG54HP), 119 RUM_DEV(MELCO, SG54HG), 120 RUM_DEV(MELCO, WLIUCG), 121 RUM_DEV(MELCO, WLRUCG), 122 RUM_DEV(MELCO, WLRUCGAOSS), 123 RUM_DEV(MSI, RT2573_1), 124 RUM_DEV(MSI, RT2573_2), 125 RUM_DEV(MSI, RT2573_3), 126 RUM_DEV(MSI, RT2573_4), 127 RUM_DEV(NOVATECH, RT2573), 128 RUM_DEV(PLANEX2, GWUS54HP), 129 RUM_DEV(PLANEX2, GWUS54MINI2), 130 RUM_DEV(PLANEX2, GWUSMM), 131 RUM_DEV(QCOM, RT2573), 132 RUM_DEV(QCOM, RT2573_2), 133 RUM_DEV(QCOM, RT2573_3), 134 RUM_DEV(RALINK, RT2573), 135 RUM_DEV(RALINK, RT2573_2), 136 RUM_DEV(RALINK, RT2671), 137 RUM_DEV(SITECOMEU, WL113R2), 138 RUM_DEV(SITECOMEU, WL172), 139 RUM_DEV(SPARKLAN, RT2573), 140 RUM_DEV(SURECOM, RT2573), 141#undef RUM_DEV 142}; 143 144static device_probe_t rum_match; 145static device_attach_t rum_attach; 146static device_detach_t rum_detach; 147 148static usb_callback_t rum_bulk_read_callback; 149static usb_callback_t rum_bulk_write_callback; 150 151static usb_error_t rum_do_request(struct rum_softc *sc, 152 struct usb_device_request *req, void *data); 153static usb_error_t rum_do_mcu_request(struct rum_softc *sc, int); 154static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 155 const char [IFNAMSIZ], int, enum ieee80211_opmode, 156 int, const uint8_t [IEEE80211_ADDR_LEN], 157 const uint8_t [IEEE80211_ADDR_LEN]); 158static void rum_vap_delete(struct ieee80211vap *); 159static void rum_cmdq_cb(void *, int); 160static int rum_cmd_sleepable(struct rum_softc *, const void *, 161 size_t, uint8_t, CMD_FUNC_PROTO); 162static void rum_tx_free(struct rum_tx_data *, int); 163static void rum_setup_tx_list(struct rum_softc *); 164static void rum_unsetup_tx_list(struct rum_softc *); 165static void rum_beacon_miss(struct ieee80211vap *); 166static void rum_sta_recv_mgmt(struct ieee80211_node *, 167 struct mbuf *, int, 168 const struct ieee80211_rx_stats *, int, int); 169static int rum_set_power_state(struct rum_softc *, int); 170static int rum_newstate(struct ieee80211vap *, 171 enum ieee80211_state, int); 172static uint8_t rum_crypto_mode(struct rum_softc *, u_int, int); 173static void rum_setup_tx_desc(struct rum_softc *, 174 struct rum_tx_desc *, struct ieee80211_key *, 175 uint32_t, uint8_t, uint8_t, int, int, int); 176static uint32_t rum_tx_crypto_flags(struct rum_softc *, 177 struct ieee80211_node *, 178 const struct ieee80211_key *); 179static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 180 struct ieee80211_node *); 181static int rum_tx_raw(struct rum_softc *, struct mbuf *, 182 struct ieee80211_node *, 183 const struct ieee80211_bpf_params *); 184static int rum_tx_data(struct rum_softc *, struct mbuf *, 185 struct ieee80211_node *); 186static int rum_transmit(struct ieee80211com *, struct mbuf *); 187static void rum_start(struct rum_softc *); 188static void rum_parent(struct ieee80211com *); 189static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 190 int); 191static uint32_t rum_read(struct rum_softc *, uint16_t); 192static void rum_read_multi(struct rum_softc *, uint16_t, void *, 193 int); 194static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 195static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 196 size_t); 197static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 198static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 199static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 200 uint32_t); 201static int rum_bbp_busy(struct rum_softc *); 202static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 203static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 204static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 205static void rum_select_antenna(struct rum_softc *); 206static void rum_enable_mrr(struct rum_softc *); 207static void rum_set_txpreamble(struct rum_softc *); 208static void rum_set_basicrates(struct rum_softc *); 209static void rum_select_band(struct rum_softc *, 210 struct ieee80211_channel *); 211static void rum_set_chan(struct rum_softc *, 212 struct ieee80211_channel *); 213static void rum_set_maxretry(struct rum_softc *, 214 struct ieee80211vap *); 215static int rum_enable_tsf_sync(struct rum_softc *); 216static void rum_enable_tsf(struct rum_softc *); 217static void rum_abort_tsf_sync(struct rum_softc *); 218static void rum_get_tsf(struct rum_softc *, uint64_t *); 219static void rum_update_slot_cb(struct rum_softc *, 220 union sec_param *, uint8_t); 221static void rum_update_slot(struct ieee80211com *); 222static int rum_wme_update(struct ieee80211com *); 223static void rum_set_bssid(struct rum_softc *, const uint8_t *); 224static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 225static void rum_update_mcast(struct ieee80211com *); 226static void rum_update_promisc(struct ieee80211com *); 227static void rum_setpromisc(struct rum_softc *); 228static const char *rum_get_rf(int); 229static void rum_read_eeprom(struct rum_softc *); 230static int rum_bbp_wakeup(struct rum_softc *); 231static int rum_bbp_init(struct rum_softc *); 232static void rum_clr_shkey_regs(struct rum_softc *); 233static int rum_init(struct rum_softc *); 234static void rum_stop(struct rum_softc *); 235static void rum_load_microcode(struct rum_softc *, const uint8_t *, 236 size_t); 237static int rum_set_sleep_time(struct rum_softc *, uint16_t); 238static int rum_reset(struct ieee80211vap *, u_long); 239static int rum_set_beacon(struct rum_softc *, 240 struct ieee80211vap *); 241static int rum_alloc_beacon(struct rum_softc *, 242 struct ieee80211vap *); 243static void rum_update_beacon_cb(struct rum_softc *, 244 union sec_param *, uint8_t); 245static void rum_update_beacon(struct ieee80211vap *, int); 246static int rum_common_key_set(struct rum_softc *, 247 struct ieee80211_key *, uint16_t); 248static void rum_group_key_set_cb(struct rum_softc *, 249 union sec_param *, uint8_t); 250static void rum_group_key_del_cb(struct rum_softc *, 251 union sec_param *, uint8_t); 252static void rum_pair_key_set_cb(struct rum_softc *, 253 union sec_param *, uint8_t); 254static void rum_pair_key_del_cb(struct rum_softc *, 255 union sec_param *, uint8_t); 256static int rum_key_alloc(struct ieee80211vap *, 257 struct ieee80211_key *, ieee80211_keyix *, 258 ieee80211_keyix *); 259static int rum_key_set(struct ieee80211vap *, 260 const struct ieee80211_key *); 261static int rum_key_delete(struct ieee80211vap *, 262 const struct ieee80211_key *); 263static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 264 const struct ieee80211_bpf_params *); 265static void rum_scan_start(struct ieee80211com *); 266static void rum_scan_end(struct ieee80211com *); 267static void rum_set_channel(struct ieee80211com *); 268static void rum_getradiocaps(struct ieee80211com *, int, int *, 269 struct ieee80211_channel[]); 270static int rum_get_rssi(struct rum_softc *, uint8_t); 271static void rum_ratectl_start(struct rum_softc *, 272 struct ieee80211_node *); 273static void rum_ratectl_timeout(void *); 274static void rum_ratectl_task(void *, int); 275static int rum_pause(struct rum_softc *, int); 276 277static const struct { 278 uint32_t reg; 279 uint32_t val; 280} rum_def_mac[] = { 281 { RT2573_TXRX_CSR0, 0x025fb032 }, 282 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 283 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 284 { RT2573_TXRX_CSR3, 0x00858687 }, 285 { RT2573_TXRX_CSR7, 0x2e31353b }, 286 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 287 { RT2573_TXRX_CSR15, 0x0000000f }, 288 { RT2573_MAC_CSR6, 0x00000fff }, 289 { RT2573_MAC_CSR8, 0x016c030a }, 290 { RT2573_MAC_CSR10, 0x00000718 }, 291 { RT2573_MAC_CSR12, 0x00000004 }, 292 { RT2573_MAC_CSR13, 0x00007f00 }, 293 { RT2573_SEC_CSR2, 0x00000000 }, 294 { RT2573_SEC_CSR3, 0x00000000 }, 295 { RT2573_SEC_CSR4, 0x00000000 }, 296 { RT2573_PHY_CSR1, 0x000023b0 }, 297 { RT2573_PHY_CSR5, 0x00040a06 }, 298 { RT2573_PHY_CSR6, 0x00080606 }, 299 { RT2573_PHY_CSR7, 0x00000408 }, 300 { RT2573_AIFSN_CSR, 0x00002273 }, 301 { RT2573_CWMIN_CSR, 0x00002344 }, 302 { RT2573_CWMAX_CSR, 0x000034aa } 303}; 304 305static const struct { 306 uint8_t reg; 307 uint8_t val; 308} rum_def_bbp[] = { 309 { 3, 0x80 }, 310 { 15, 0x30 }, 311 { 17, 0x20 }, 312 { 21, 0xc8 }, 313 { 22, 0x38 }, 314 { 23, 0x06 }, 315 { 24, 0xfe }, 316 { 25, 0x0a }, 317 { 26, 0x0d }, 318 { 32, 0x0b }, 319 { 34, 0x12 }, 320 { 37, 0x07 }, 321 { 39, 0xf8 }, 322 { 41, 0x60 }, 323 { 53, 0x10 }, 324 { 54, 0x18 }, 325 { 60, 0x10 }, 326 { 61, 0x04 }, 327 { 62, 0x04 }, 328 { 75, 0xfe }, 329 { 86, 0xfe }, 330 { 88, 0xfe }, 331 { 90, 0x0f }, 332 { 99, 0x00 }, 333 { 102, 0x16 }, 334 { 107, 0x04 } 335}; 336 337static const uint8_t rum_chan_5ghz[] = 338 { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64, 339 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 340 149, 153, 157, 161, 165 }; 341 342static const struct rfprog { 343 uint8_t chan; 344 uint32_t r1, r2, r3, r4; 345} rum_rf5226[] = { 346 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 347 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 348 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 349 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 350 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 351 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 352 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 353 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 354 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 355 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 356 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 357 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 358 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 359 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 360 361 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 362 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 363 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 364 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 365 366 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 367 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 368 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 369 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 370 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 371 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 372 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 373 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 374 375 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 376 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 377 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 378 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 379 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 380 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 381 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 382 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 383 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 384 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 385 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 386 387 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 388 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 389 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 390 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 391 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 392}, rum_rf5225[] = { 393 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 394 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 395 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 396 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 397 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 398 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 399 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 400 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 401 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 402 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 403 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 404 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 405 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 406 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 407 408 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 409 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 410 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 411 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 412 413 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 414 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 415 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 416 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 417 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 418 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 419 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 420 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 421 422 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 423 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 424 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 425 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 426 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 427 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 428 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 429 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 430 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 431 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 432 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 433 434 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 435 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 436 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 437 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 438 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 439}; 440 441static const struct usb_config rum_config[RUM_N_TRANSFER] = { 442 [RUM_BULK_WR] = { 443 .type = UE_BULK, 444 .endpoint = UE_ADDR_ANY, 445 .direction = UE_DIR_OUT, 446 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 447 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 448 .callback = rum_bulk_write_callback, 449 .timeout = 5000, /* ms */ 450 }, 451 [RUM_BULK_RD] = { 452 .type = UE_BULK, 453 .endpoint = UE_ADDR_ANY, 454 .direction = UE_DIR_IN, 455 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 456 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 457 .callback = rum_bulk_read_callback, 458 }, 459}; 460 461static int 462rum_match(device_t self) 463{ 464 struct usb_attach_arg *uaa = device_get_ivars(self); 465 466 if (uaa->usb_mode != USB_MODE_HOST) 467 return (ENXIO); 468 if (uaa->info.bConfigIndex != 0) 469 return (ENXIO); 470 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 471 return (ENXIO); 472 473 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 474} 475 476static int 477rum_attach(device_t self) 478{ 479 struct usb_attach_arg *uaa = device_get_ivars(self); 480 struct rum_softc *sc = device_get_softc(self); 481 struct ieee80211com *ic = &sc->sc_ic; 482 uint32_t tmp; 483 uint8_t iface_index; 484 int error, ntries; 485 486 device_set_usb_desc(self); 487 sc->sc_udev = uaa->device; 488 sc->sc_dev = self; 489 490 RUM_LOCK_INIT(sc); 491 RUM_CMDQ_LOCK_INIT(sc); 492 mbufq_init(&sc->sc_snd, ifqmaxlen); 493 494 iface_index = RT2573_IFACE_INDEX; 495 error = usbd_transfer_setup(uaa->device, &iface_index, 496 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 497 if (error) { 498 device_printf(self, "could not allocate USB transfers, " 499 "err=%s\n", usbd_errstr(error)); 500 goto detach; 501 } 502 503 RUM_LOCK(sc); 504 /* retrieve RT2573 rev. no */ 505 for (ntries = 0; ntries < 100; ntries++) { 506 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 507 break; 508 if (rum_pause(sc, hz / 100)) 509 break; 510 } 511 if (ntries == 100) { 512 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 513 RUM_UNLOCK(sc); 514 goto detach; 515 } 516 517 /* retrieve MAC address and various other things from EEPROM */ 518 rum_read_eeprom(sc); 519 520 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 521 tmp, rum_get_rf(sc->rf_rev)); 522 523 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 524 RUM_UNLOCK(sc); 525 526 ic->ic_softc = sc; 527 ic->ic_name = device_get_nameunit(self); 528 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 529 530 /* set device capabilities */ 531 ic->ic_caps = 532 IEEE80211_C_STA /* station mode supported */ 533 | IEEE80211_C_IBSS /* IBSS mode supported */ 534 | IEEE80211_C_MONITOR /* monitor mode supported */ 535 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 536 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 537 | IEEE80211_C_TXPMGT /* tx power management */ 538 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 539 | IEEE80211_C_SHSLOT /* short slot time supported */ 540 | IEEE80211_C_BGSCAN /* bg scanning supported */ 541 | IEEE80211_C_WPA /* 802.11i */ 542 | IEEE80211_C_WME /* 802.11e */ 543 | IEEE80211_C_PMGT /* Station-side power mgmt */ 544 | IEEE80211_C_SWSLEEP /* net80211 managed power mgmt */ 545 ; 546 547 ic->ic_cryptocaps = 548 IEEE80211_CRYPTO_WEP | 549 IEEE80211_CRYPTO_AES_CCM | 550 IEEE80211_CRYPTO_TKIPMIC | 551 IEEE80211_CRYPTO_TKIP; 552 553 rum_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 554 ic->ic_channels); 555 556 ieee80211_ifattach(ic); 557 ic->ic_update_promisc = rum_update_promisc; 558 ic->ic_raw_xmit = rum_raw_xmit; 559 ic->ic_scan_start = rum_scan_start; 560 ic->ic_scan_end = rum_scan_end; 561 ic->ic_set_channel = rum_set_channel; 562 ic->ic_getradiocaps = rum_getradiocaps; 563 ic->ic_transmit = rum_transmit; 564 ic->ic_parent = rum_parent; 565 ic->ic_vap_create = rum_vap_create; 566 ic->ic_vap_delete = rum_vap_delete; 567 ic->ic_updateslot = rum_update_slot; 568 ic->ic_wme.wme_update = rum_wme_update; 569 ic->ic_update_mcast = rum_update_mcast; 570 571 ieee80211_radiotap_attach(ic, 572 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 573 RT2573_TX_RADIOTAP_PRESENT, 574 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 575 RT2573_RX_RADIOTAP_PRESENT); 576 577 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 578 579 if (bootverbose) 580 ieee80211_announce(ic); 581 582 return (0); 583 584detach: 585 rum_detach(self); 586 return (ENXIO); /* failure */ 587} 588 589static int 590rum_detach(device_t self) 591{ 592 struct rum_softc *sc = device_get_softc(self); 593 struct ieee80211com *ic = &sc->sc_ic; 594 595 /* Prevent further ioctls */ 596 RUM_LOCK(sc); 597 sc->sc_detached = 1; 598 RUM_UNLOCK(sc); 599 600 /* stop all USB transfers */ 601 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 602 603 /* free TX list, if any */ 604 RUM_LOCK(sc); 605 rum_unsetup_tx_list(sc); 606 RUM_UNLOCK(sc); 607 608 if (ic->ic_softc == sc) { 609 ieee80211_draintask(ic, &sc->cmdq_task); 610 ieee80211_ifdetach(ic); 611 } 612 613 mbufq_drain(&sc->sc_snd); 614 RUM_CMDQ_LOCK_DESTROY(sc); 615 RUM_LOCK_DESTROY(sc); 616 617 return (0); 618} 619 620static usb_error_t 621rum_do_request(struct rum_softc *sc, 622 struct usb_device_request *req, void *data) 623{ 624 usb_error_t err; 625 int ntries = 10; 626 627 while (ntries--) { 628 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 629 req, data, 0, NULL, 250 /* ms */); 630 if (err == 0) 631 break; 632 633 DPRINTFN(1, "Control request failed, %s (retrying)\n", 634 usbd_errstr(err)); 635 if (rum_pause(sc, hz / 100)) 636 break; 637 } 638 return (err); 639} 640 641static usb_error_t 642rum_do_mcu_request(struct rum_softc *sc, int request) 643{ 644 struct usb_device_request req; 645 646 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 647 req.bRequest = RT2573_MCU_CNTL; 648 USETW(req.wValue, request); 649 USETW(req.wIndex, 0); 650 USETW(req.wLength, 0); 651 652 return (rum_do_request(sc, &req, NULL)); 653} 654 655static struct ieee80211vap * 656rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 657 enum ieee80211_opmode opmode, int flags, 658 const uint8_t bssid[IEEE80211_ADDR_LEN], 659 const uint8_t mac[IEEE80211_ADDR_LEN]) 660{ 661 struct rum_softc *sc = ic->ic_softc; 662 struct rum_vap *rvp; 663 struct ieee80211vap *vap; 664 665 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 666 return NULL; 667 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 668 vap = &rvp->vap; 669 /* enable s/w bmiss handling for sta mode */ 670 671 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 672 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 673 /* out of memory */ 674 free(rvp, M_80211_VAP); 675 return (NULL); 676 } 677 678 /* override state transition machine */ 679 rvp->newstate = vap->iv_newstate; 680 vap->iv_newstate = rum_newstate; 681 vap->iv_key_alloc = rum_key_alloc; 682 vap->iv_key_set = rum_key_set; 683 vap->iv_key_delete = rum_key_delete; 684 vap->iv_update_beacon = rum_update_beacon; 685 vap->iv_reset = rum_reset; 686 vap->iv_max_aid = RT2573_ADDR_MAX; 687 688 if (opmode == IEEE80211_M_STA) { 689 /* 690 * Move device to the sleep state when 691 * beacon is received and there is no data for us. 692 * 693 * Used only for IEEE80211_S_SLEEP state. 694 */ 695 rvp->recv_mgmt = vap->iv_recv_mgmt; 696 vap->iv_recv_mgmt = rum_sta_recv_mgmt; 697 698 /* Ignored while sleeping. */ 699 rvp->bmiss = vap->iv_bmiss; 700 vap->iv_bmiss = rum_beacon_miss; 701 } 702 703 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 704 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 705 ieee80211_ratectl_init(vap); 706 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 707 /* complete setup */ 708 ieee80211_vap_attach(vap, ieee80211_media_change, 709 ieee80211_media_status, mac); 710 ic->ic_opmode = opmode; 711 return vap; 712} 713 714static void 715rum_vap_delete(struct ieee80211vap *vap) 716{ 717 struct rum_vap *rvp = RUM_VAP(vap); 718 struct ieee80211com *ic = vap->iv_ic; 719 720 m_freem(rvp->bcn_mbuf); 721 usb_callout_drain(&rvp->ratectl_ch); 722 ieee80211_draintask(ic, &rvp->ratectl_task); 723 ieee80211_ratectl_deinit(vap); 724 ieee80211_vap_detach(vap); 725 free(rvp, M_80211_VAP); 726} 727 728static void 729rum_cmdq_cb(void *arg, int pending) 730{ 731 struct rum_softc *sc = arg; 732 struct rum_cmdq *rc; 733 734 RUM_CMDQ_LOCK(sc); 735 while (sc->cmdq[sc->cmdq_first].func != NULL) { 736 rc = &sc->cmdq[sc->cmdq_first]; 737 RUM_CMDQ_UNLOCK(sc); 738 739 RUM_LOCK(sc); 740 rc->func(sc, &rc->data, rc->rvp_id); 741 RUM_UNLOCK(sc); 742 743 RUM_CMDQ_LOCK(sc); 744 memset(rc, 0, sizeof (*rc)); 745 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 746 } 747 RUM_CMDQ_UNLOCK(sc); 748} 749 750static int 751rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 752 uint8_t rvp_id, CMD_FUNC_PROTO) 753{ 754 struct ieee80211com *ic = &sc->sc_ic; 755 756 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 757 758 RUM_CMDQ_LOCK(sc); 759 if (sc->cmdq[sc->cmdq_last].func != NULL) { 760 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 761 RUM_CMDQ_UNLOCK(sc); 762 763 return EAGAIN; 764 } 765 766 if (ptr != NULL) 767 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 768 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 769 sc->cmdq[sc->cmdq_last].func = func; 770 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 771 RUM_CMDQ_UNLOCK(sc); 772 773 ieee80211_runtask(ic, &sc->cmdq_task); 774 775 return 0; 776} 777 778static void 779rum_tx_free(struct rum_tx_data *data, int txerr) 780{ 781 struct rum_softc *sc = data->sc; 782 783 if (data->m != NULL) { 784 ieee80211_tx_complete(data->ni, data->m, txerr); 785 data->m = NULL; 786 data->ni = NULL; 787 } 788 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 789 sc->tx_nfree++; 790} 791 792static void 793rum_setup_tx_list(struct rum_softc *sc) 794{ 795 struct rum_tx_data *data; 796 int i; 797 798 sc->tx_nfree = 0; 799 STAILQ_INIT(&sc->tx_q); 800 STAILQ_INIT(&sc->tx_free); 801 802 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 803 data = &sc->tx_data[i]; 804 805 data->sc = sc; 806 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 807 sc->tx_nfree++; 808 } 809} 810 811static void 812rum_unsetup_tx_list(struct rum_softc *sc) 813{ 814 struct rum_tx_data *data; 815 int i; 816 817 /* make sure any subsequent use of the queues will fail */ 818 sc->tx_nfree = 0; 819 STAILQ_INIT(&sc->tx_q); 820 STAILQ_INIT(&sc->tx_free); 821 822 /* free up all node references and mbufs */ 823 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 824 data = &sc->tx_data[i]; 825 826 if (data->m != NULL) { 827 m_freem(data->m); 828 data->m = NULL; 829 } 830 if (data->ni != NULL) { 831 ieee80211_free_node(data->ni); 832 data->ni = NULL; 833 } 834 } 835} 836 837static void 838rum_beacon_miss(struct ieee80211vap *vap) 839{ 840 struct ieee80211com *ic = vap->iv_ic; 841 struct rum_softc *sc = ic->ic_softc; 842 struct rum_vap *rvp = RUM_VAP(vap); 843 int sleep; 844 845 RUM_LOCK(sc); 846 if (sc->sc_sleeping && sc->sc_sleep_end < ticks) { 847 DPRINTFN(12, "dropping 'sleeping' bit, " 848 "device must be awake now\n"); 849 850 sc->sc_sleeping = 0; 851 } 852 853 sleep = sc->sc_sleeping; 854 RUM_UNLOCK(sc); 855 856 if (!sleep) 857 rvp->bmiss(vap); 858#ifdef USB_DEBUG 859 else 860 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n"); 861#endif 862} 863 864static void 865rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype, 866 const struct ieee80211_rx_stats *rxs, 867 int rssi, int nf) 868{ 869 struct ieee80211vap *vap = ni->ni_vap; 870 struct rum_softc *sc = vap->iv_ic->ic_softc; 871 struct rum_vap *rvp = RUM_VAP(vap); 872 873 if (vap->iv_state == IEEE80211_S_SLEEP && 874 subtype == IEEE80211_FC0_SUBTYPE_BEACON) { 875 RUM_LOCK(sc); 876 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n", 877 !!(sc->last_rx_flags & RT2573_RX_MYBSS), 878 sc->last_rx_flags); 879 880 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) == 881 (RT2573_RX_MYBSS | RT2573_RX_BC)) { 882 /* 883 * Put it to sleep here; in case if there is a data 884 * for us, iv_recv_mgmt() will wakeup the device via 885 * SLEEP -> RUN state transition. 886 */ 887 rum_set_power_state(sc, 1); 888 } 889 RUM_UNLOCK(sc); 890 } 891 892 rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf); 893} 894 895static int 896rum_set_power_state(struct rum_softc *sc, int sleep) 897{ 898 usb_error_t uerror; 899 900 RUM_LOCK_ASSERT(sc); 901 902 DPRINTFN(12, "moving to %s state (sleep time %u)\n", 903 sleep ? "sleep" : "awake", sc->sc_sleep_time); 904 905 uerror = rum_do_mcu_request(sc, 906 sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP); 907 if (uerror != USB_ERR_NORMAL_COMPLETION) { 908 device_printf(sc->sc_dev, 909 "%s: could not change power state: %s\n", 910 __func__, usbd_errstr(uerror)); 911 return (EIO); 912 } 913 914 sc->sc_sleeping = !!sleep; 915 sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0; 916 917 return (0); 918} 919 920static int 921rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 922{ 923 struct rum_vap *rvp = RUM_VAP(vap); 924 struct ieee80211com *ic = vap->iv_ic; 925 struct rum_softc *sc = ic->ic_softc; 926 const struct ieee80211_txparam *tp; 927 enum ieee80211_state ostate; 928 struct ieee80211_node *ni; 929 usb_error_t uerror; 930 int ret = 0; 931 932 ostate = vap->iv_state; 933 DPRINTF("%s -> %s\n", 934 ieee80211_state_name[ostate], 935 ieee80211_state_name[nstate]); 936 937 IEEE80211_UNLOCK(ic); 938 RUM_LOCK(sc); 939 usb_callout_stop(&rvp->ratectl_ch); 940 941 if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) { 942 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT); 943 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 944 945 /* 946 * Ignore any errors; 947 * any subsequent TX will wakeup it anyway 948 */ 949 (void) rum_set_power_state(sc, 0); 950 } 951 952 switch (nstate) { 953 case IEEE80211_S_INIT: 954 if (ostate == IEEE80211_S_RUN) 955 rum_abort_tsf_sync(sc); 956 957 break; 958 959 case IEEE80211_S_RUN: 960 if (ostate == IEEE80211_S_SLEEP) 961 break; /* already handled */ 962 963 ni = ieee80211_ref_node(vap->iv_bss); 964 965 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 966 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC || 967 ni->ni_chan == IEEE80211_CHAN_ANYC) { 968 ret = EINVAL; 969 goto run_fail; 970 } 971 rum_update_slot_cb(sc, NULL, 0); 972 rum_enable_mrr(sc); 973 rum_set_txpreamble(sc); 974 rum_set_basicrates(sc); 975 rum_set_maxretry(sc, vap); 976 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 977 rum_set_bssid(sc, sc->sc_bssid); 978 } 979 980 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 981 vap->iv_opmode == IEEE80211_M_IBSS) { 982 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 983 goto run_fail; 984 } 985 986 if (vap->iv_opmode != IEEE80211_M_MONITOR && 987 vap->iv_opmode != IEEE80211_M_AHDEMO) { 988 if ((ret = rum_enable_tsf_sync(sc)) != 0) 989 goto run_fail; 990 } else 991 rum_enable_tsf(sc); 992 993 /* enable automatic rate adaptation */ 994 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 995 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 996 rum_ratectl_start(sc, ni); 997run_fail: 998 ieee80211_free_node(ni); 999 break; 1000 case IEEE80211_S_SLEEP: 1001 /* Implemented for STA mode only. */ 1002 if (vap->iv_opmode != IEEE80211_M_STA) 1003 break; 1004 1005 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 1006 if (uerror != USB_ERR_NORMAL_COMPLETION) { 1007 ret = EIO; 1008 break; 1009 } 1010 1011 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT); 1012 if (uerror != USB_ERR_NORMAL_COMPLETION) { 1013 ret = EIO; 1014 break; 1015 } 1016 1017 ret = rum_set_power_state(sc, 1); 1018 if (ret != 0) { 1019 device_printf(sc->sc_dev, 1020 "%s: could not move to the SLEEP state: %s\n", 1021 __func__, usbd_errstr(uerror)); 1022 } 1023 break; 1024 default: 1025 break; 1026 } 1027 RUM_UNLOCK(sc); 1028 IEEE80211_LOCK(ic); 1029 return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret); 1030} 1031 1032static void 1033rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 1034{ 1035 struct rum_softc *sc = usbd_xfer_softc(xfer); 1036 struct ieee80211vap *vap; 1037 struct rum_tx_data *data; 1038 struct mbuf *m; 1039 struct usb_page_cache *pc; 1040 unsigned int len; 1041 int actlen, sumlen; 1042 1043 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 1044 1045 switch (USB_GET_STATE(xfer)) { 1046 case USB_ST_TRANSFERRED: 1047 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 1048 1049 /* free resources */ 1050 data = usbd_xfer_get_priv(xfer); 1051 rum_tx_free(data, 0); 1052 usbd_xfer_set_priv(xfer, NULL); 1053 1054 /* FALLTHROUGH */ 1055 case USB_ST_SETUP: 1056tr_setup: 1057 data = STAILQ_FIRST(&sc->tx_q); 1058 if (data) { 1059 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 1060 m = data->m; 1061 1062 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 1063 DPRINTFN(0, "data overflow, %u bytes\n", 1064 m->m_pkthdr.len); 1065 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 1066 } 1067 pc = usbd_xfer_get_frame(xfer, 0); 1068 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 1069 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 1070 m->m_pkthdr.len); 1071 1072 vap = data->ni->ni_vap; 1073 if (ieee80211_radiotap_active_vap(vap)) { 1074 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1075 1076 tap->wt_flags = 0; 1077 tap->wt_rate = data->rate; 1078 tap->wt_antenna = sc->tx_ant; 1079 1080 ieee80211_radiotap_tx(vap, m); 1081 } 1082 1083 /* align end on a 4-bytes boundary */ 1084 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 1085 if ((len % 64) == 0) 1086 len += 4; 1087 1088 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 1089 m->m_pkthdr.len, len); 1090 1091 usbd_xfer_set_frame_len(xfer, 0, len); 1092 usbd_xfer_set_priv(xfer, data); 1093 1094 usbd_transfer_submit(xfer); 1095 } 1096 rum_start(sc); 1097 break; 1098 1099 default: /* Error */ 1100 DPRINTFN(11, "transfer error, %s\n", 1101 usbd_errstr(error)); 1102 1103 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 1104 data = usbd_xfer_get_priv(xfer); 1105 if (data != NULL) { 1106 rum_tx_free(data, error); 1107 usbd_xfer_set_priv(xfer, NULL); 1108 } 1109 1110 if (error != USB_ERR_CANCELLED) { 1111 if (error == USB_ERR_TIMEOUT) 1112 device_printf(sc->sc_dev, "device timeout\n"); 1113 1114 /* 1115 * Try to clear stall first, also if other 1116 * errors occur, hence clearing stall 1117 * introduces a 50 ms delay: 1118 */ 1119 usbd_xfer_set_stall(xfer); 1120 goto tr_setup; 1121 } 1122 break; 1123 } 1124} 1125 1126static void 1127rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 1128{ 1129 struct rum_softc *sc = usbd_xfer_softc(xfer); 1130 struct ieee80211com *ic = &sc->sc_ic; 1131 struct ieee80211_frame_min *wh; 1132 struct ieee80211_node *ni; 1133 struct mbuf *m = NULL; 1134 struct usb_page_cache *pc; 1135 uint32_t flags; 1136 uint8_t rssi = 0; 1137 int len; 1138 1139 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 1140 1141 switch (USB_GET_STATE(xfer)) { 1142 case USB_ST_TRANSFERRED: 1143 1144 DPRINTFN(15, "rx done, actlen=%d\n", len); 1145 1146 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 1147 DPRINTF("%s: xfer too short %d\n", 1148 device_get_nameunit(sc->sc_dev), len); 1149 counter_u64_add(ic->ic_ierrors, 1); 1150 goto tr_setup; 1151 } 1152 1153 len -= RT2573_RX_DESC_SIZE; 1154 pc = usbd_xfer_get_frame(xfer, 0); 1155 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 1156 1157 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 1158 flags = le32toh(sc->sc_rx_desc.flags); 1159 sc->last_rx_flags = flags; 1160 if (flags & RT2573_RX_CRC_ERROR) { 1161 /* 1162 * This should not happen since we did not 1163 * request to receive those frames when we 1164 * filled RUM_TXRX_CSR2: 1165 */ 1166 DPRINTFN(5, "PHY or CRC error\n"); 1167 counter_u64_add(ic->ic_ierrors, 1); 1168 goto tr_setup; 1169 } 1170 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) { 1171 switch (flags & RT2573_RX_DEC_MASK) { 1172 case RT2573_RX_IV_ERROR: 1173 DPRINTFN(5, "IV/EIV error\n"); 1174 break; 1175 case RT2573_RX_MIC_ERROR: 1176 DPRINTFN(5, "MIC error\n"); 1177 break; 1178 case RT2573_RX_KEY_ERROR: 1179 DPRINTFN(5, "Key error\n"); 1180 break; 1181 } 1182 counter_u64_add(ic->ic_ierrors, 1); 1183 goto tr_setup; 1184 } 1185 1186 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1187 if (m == NULL) { 1188 DPRINTF("could not allocate mbuf\n"); 1189 counter_u64_add(ic->ic_ierrors, 1); 1190 goto tr_setup; 1191 } 1192 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 1193 mtod(m, uint8_t *), len); 1194 1195 wh = mtod(m, struct ieee80211_frame_min *); 1196 1197 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1198 (flags & RT2573_RX_CIP_MASK) != 1199 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) { 1200 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 1201 m->m_flags |= M_WEP; 1202 } 1203 1204 /* finalize mbuf */ 1205 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 1206 1207 if (ieee80211_radiotap_active(ic)) { 1208 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 1209 1210 tap->wr_flags = 0; 1211 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 1212 (flags & RT2573_RX_OFDM) ? 1213 IEEE80211_T_OFDM : IEEE80211_T_CCK); 1214 rum_get_tsf(sc, &tap->wr_tsf); 1215 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 1216 tap->wr_antnoise = RT2573_NOISE_FLOOR; 1217 tap->wr_antenna = sc->rx_ant; 1218 } 1219 /* FALLTHROUGH */ 1220 case USB_ST_SETUP: 1221tr_setup: 1222 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1223 usbd_transfer_submit(xfer); 1224 1225 /* 1226 * At the end of a USB callback it is always safe to unlock 1227 * the private mutex of a device! That is why we do the 1228 * "ieee80211_input" here, and not some lines up! 1229 */ 1230 RUM_UNLOCK(sc); 1231 if (m) { 1232 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1233 ni = ieee80211_find_rxnode(ic, wh); 1234 else 1235 ni = NULL; 1236 1237 if (ni != NULL) { 1238 (void) ieee80211_input(ni, m, rssi, 1239 RT2573_NOISE_FLOOR); 1240 ieee80211_free_node(ni); 1241 } else 1242 (void) ieee80211_input_all(ic, m, rssi, 1243 RT2573_NOISE_FLOOR); 1244 } 1245 RUM_LOCK(sc); 1246 rum_start(sc); 1247 return; 1248 1249 default: /* Error */ 1250 if (error != USB_ERR_CANCELLED) { 1251 /* try to clear stall first */ 1252 usbd_xfer_set_stall(xfer); 1253 goto tr_setup; 1254 } 1255 return; 1256 } 1257} 1258 1259static uint8_t 1260rum_plcp_signal(int rate) 1261{ 1262 switch (rate) { 1263 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1264 case 12: return 0xb; 1265 case 18: return 0xf; 1266 case 24: return 0xa; 1267 case 36: return 0xe; 1268 case 48: return 0x9; 1269 case 72: return 0xd; 1270 case 96: return 0x8; 1271 case 108: return 0xc; 1272 1273 /* CCK rates (NB: not IEEE std, device-specific) */ 1274 case 2: return 0x0; 1275 case 4: return 0x1; 1276 case 11: return 0x2; 1277 case 22: return 0x3; 1278 } 1279 return 0xff; /* XXX unsupported/unknown rate */ 1280} 1281 1282/* 1283 * Map net80211 cipher to RT2573 security mode. 1284 */ 1285static uint8_t 1286rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen) 1287{ 1288 switch (cipher) { 1289 case IEEE80211_CIPHER_WEP: 1290 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104); 1291 case IEEE80211_CIPHER_TKIP: 1292 return RT2573_MODE_TKIP; 1293 case IEEE80211_CIPHER_AES_CCM: 1294 return RT2573_MODE_AES_CCMP; 1295 default: 1296 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1297 return 0; 1298 } 1299} 1300 1301static void 1302rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1303 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid, 1304 int hdrlen, int len, int rate) 1305{ 1306 struct ieee80211com *ic = &sc->sc_ic; 1307 struct wmeParams *wmep = &sc->wme_params[qid]; 1308 uint16_t plcp_length; 1309 int remainder; 1310 1311 flags |= RT2573_TX_VALID; 1312 flags |= len << 16; 1313 1314 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1315 const struct ieee80211_cipher *cip = k->wk_cipher; 1316 1317 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen; 1318 1319 desc->eiv = 0; /* for WEP */ 1320 cip->ic_setiv(k, (uint8_t *)&desc->iv); 1321 } 1322 1323 /* setup PLCP fields */ 1324 desc->plcp_signal = rum_plcp_signal(rate); 1325 desc->plcp_service = 4; 1326 1327 len += IEEE80211_CRC_LEN; 1328 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1329 flags |= RT2573_TX_OFDM; 1330 1331 plcp_length = len & 0xfff; 1332 desc->plcp_length_hi = plcp_length >> 6; 1333 desc->plcp_length_lo = plcp_length & 0x3f; 1334 } else { 1335 if (rate == 0) 1336 rate = 2; /* avoid division by zero */ 1337 plcp_length = howmany(16 * len, rate); 1338 if (rate == 22) { 1339 remainder = (16 * len) % 22; 1340 if (remainder != 0 && remainder < 7) 1341 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1342 } 1343 desc->plcp_length_hi = plcp_length >> 8; 1344 desc->plcp_length_lo = plcp_length & 0xff; 1345 1346 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1347 desc->plcp_signal |= 0x08; 1348 } 1349 1350 desc->flags = htole32(flags); 1351 desc->hdrlen = hdrlen; 1352 desc->xflags = xflags; 1353 1354 desc->wme = htole16(RT2573_QID(qid) | 1355 RT2573_AIFSN(wmep->wmep_aifsn) | 1356 RT2573_LOGCWMIN(wmep->wmep_logcwmin) | 1357 RT2573_LOGCWMAX(wmep->wmep_logcwmax)); 1358} 1359 1360static int 1361rum_sendprot(struct rum_softc *sc, 1362 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1363{ 1364 struct ieee80211com *ic = ni->ni_ic; 1365 const struct ieee80211_frame *wh; 1366 struct rum_tx_data *data; 1367 struct mbuf *mprot; 1368 int protrate, pktlen, flags, isshort; 1369 uint16_t dur; 1370 1371 RUM_LOCK_ASSERT(sc); 1372 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1373 ("protection %d", prot)); 1374 1375 wh = mtod(m, const struct ieee80211_frame *); 1376 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1377 1378 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1379 1380 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1381 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1382 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1383 flags = 0; 1384 if (prot == IEEE80211_PROT_RTSCTS) { 1385 /* NB: CTS is the same size as an ACK */ 1386 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1387 flags |= RT2573_TX_NEED_ACK; 1388 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1389 } else { 1390 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1391 } 1392 if (mprot == NULL) { 1393 /* XXX stat + msg */ 1394 return (ENOBUFS); 1395 } 1396 data = STAILQ_FIRST(&sc->tx_free); 1397 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1398 sc->tx_nfree--; 1399 1400 data->m = mprot; 1401 data->ni = ieee80211_ref_node(ni); 1402 data->rate = protrate; 1403 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0, 1404 mprot->m_pkthdr.len, protrate); 1405 1406 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1407 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1408 1409 return 0; 1410} 1411 1412static uint32_t 1413rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni, 1414 const struct ieee80211_key *k) 1415{ 1416 struct ieee80211vap *vap = ni->ni_vap; 1417 u_int cipher; 1418 uint32_t flags = 0; 1419 uint8_t mode, pos; 1420 1421 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1422 cipher = k->wk_cipher->ic_cipher; 1423 pos = k->wk_keyix; 1424 mode = rum_crypto_mode(sc, cipher, k->wk_keylen); 1425 if (mode == 0) 1426 return 0; 1427 1428 flags |= RT2573_TX_CIP_MODE(mode); 1429 1430 /* Do not trust GROUP flag */ 1431 if (!(k >= &vap->iv_nw_keys[0] && 1432 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) 1433 flags |= RT2573_TX_KEY_PAIR; 1434 else 1435 pos += 0 * RT2573_SKEY_MAX; /* vap id */ 1436 1437 flags |= RT2573_TX_KEY_ID(pos); 1438 1439 if (cipher == IEEE80211_CIPHER_TKIP) 1440 flags |= RT2573_TX_TKIPMIC; 1441 } 1442 1443 return flags; 1444} 1445 1446static int 1447rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1448{ 1449 struct ieee80211vap *vap = ni->ni_vap; 1450 struct ieee80211com *ic = &sc->sc_ic; 1451 struct rum_tx_data *data; 1452 struct ieee80211_frame *wh; 1453 const struct ieee80211_txparam *tp; 1454 struct ieee80211_key *k = NULL; 1455 uint32_t flags = 0; 1456 uint16_t dur; 1457 uint8_t ac, type, xflags = 0; 1458 int hdrlen; 1459 1460 RUM_LOCK_ASSERT(sc); 1461 1462 data = STAILQ_FIRST(&sc->tx_free); 1463 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1464 sc->tx_nfree--; 1465 1466 wh = mtod(m0, struct ieee80211_frame *); 1467 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1468 hdrlen = ieee80211_anyhdrsize(wh); 1469 ac = M_WME_GETAC(m0); 1470 1471 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1472 k = ieee80211_crypto_get_txkey(ni, m0); 1473 if (k == NULL) 1474 return (ENOENT); 1475 1476 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1477 !k->wk_cipher->ic_encap(k, m0)) 1478 return (ENOBUFS); 1479 1480 wh = mtod(m0, struct ieee80211_frame *); 1481 } 1482 1483 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1484 1485 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1486 flags |= RT2573_TX_NEED_ACK; 1487 1488 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1489 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1490 USETW(wh->i_dur, dur); 1491 1492 /* tell hardware to add timestamp for probe responses */ 1493 if (type == IEEE80211_FC0_TYPE_MGT && 1494 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1495 IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1496 flags |= RT2573_TX_TIMESTAMP; 1497 } 1498 1499 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1500 xflags |= RT2573_TX_HWSEQ; 1501 1502 if (k != NULL) 1503 flags |= rum_tx_crypto_flags(sc, ni, k); 1504 1505 data->m = m0; 1506 data->ni = ni; 1507 data->rate = tp->mgmtrate; 1508 1509 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1510 m0->m_pkthdr.len, tp->mgmtrate); 1511 1512 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1513 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1514 1515 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1516 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1517 1518 return (0); 1519} 1520 1521static int 1522rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1523 const struct ieee80211_bpf_params *params) 1524{ 1525 struct ieee80211com *ic = ni->ni_ic; 1526 struct ieee80211_frame *wh; 1527 struct rum_tx_data *data; 1528 uint32_t flags; 1529 uint8_t ac, type, xflags = 0; 1530 int rate, error; 1531 1532 RUM_LOCK_ASSERT(sc); 1533 1534 wh = mtod(m0, struct ieee80211_frame *); 1535 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1536 1537 ac = params->ibp_pri & 3; 1538 1539 rate = params->ibp_rate0; 1540 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1541 return (EINVAL); 1542 1543 flags = 0; 1544 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1545 flags |= RT2573_TX_NEED_ACK; 1546 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1547 error = rum_sendprot(sc, m0, ni, 1548 params->ibp_flags & IEEE80211_BPF_RTS ? 1549 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1550 rate); 1551 if (error || sc->tx_nfree == 0) 1552 return (ENOBUFS); 1553 1554 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1555 } 1556 1557 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1558 xflags |= RT2573_TX_HWSEQ; 1559 1560 data = STAILQ_FIRST(&sc->tx_free); 1561 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1562 sc->tx_nfree--; 1563 1564 data->m = m0; 1565 data->ni = ni; 1566 data->rate = rate; 1567 1568 /* XXX need to setup descriptor ourself */ 1569 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0, 1570 m0->m_pkthdr.len, rate); 1571 1572 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1573 m0->m_pkthdr.len, rate); 1574 1575 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1576 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1577 1578 return 0; 1579} 1580 1581static int 1582rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1583{ 1584 struct ieee80211vap *vap = ni->ni_vap; 1585 struct ieee80211com *ic = &sc->sc_ic; 1586 struct rum_tx_data *data; 1587 struct ieee80211_frame *wh; 1588 const struct ieee80211_txparam *tp; 1589 struct ieee80211_key *k = NULL; 1590 uint32_t flags = 0; 1591 uint16_t dur; 1592 uint8_t ac, type, qos, xflags = 0; 1593 int error, hdrlen, rate; 1594 1595 RUM_LOCK_ASSERT(sc); 1596 1597 wh = mtod(m0, struct ieee80211_frame *); 1598 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1599 hdrlen = ieee80211_anyhdrsize(wh); 1600 1601 if (IEEE80211_QOS_HAS_SEQ(wh)) 1602 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 1603 else 1604 qos = 0; 1605 ac = M_WME_GETAC(m0); 1606 1607 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1608 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1609 rate = tp->mcastrate; 1610 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1611 rate = tp->ucastrate; 1612 else 1613 rate = ni->ni_txrate; 1614 1615 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1616 k = ieee80211_crypto_get_txkey(ni, m0); 1617 if (k == NULL) { 1618 m_freem(m0); 1619 return (ENOENT); 1620 } 1621 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1622 !k->wk_cipher->ic_encap(k, m0)) { 1623 m_freem(m0); 1624 return (ENOBUFS); 1625 } 1626 1627 /* packet header may have moved, reset our local pointer */ 1628 wh = mtod(m0, struct ieee80211_frame *); 1629 } 1630 1631 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1632 xflags |= RT2573_TX_HWSEQ; 1633 1634 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1635 int prot = IEEE80211_PROT_NONE; 1636 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1637 prot = IEEE80211_PROT_RTSCTS; 1638 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1639 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1640 prot = ic->ic_protmode; 1641 if (prot != IEEE80211_PROT_NONE) { 1642 error = rum_sendprot(sc, m0, ni, prot, rate); 1643 if (error || sc->tx_nfree == 0) { 1644 m_freem(m0); 1645 return ENOBUFS; 1646 } 1647 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1648 } 1649 } 1650 1651 if (k != NULL) 1652 flags |= rum_tx_crypto_flags(sc, ni, k); 1653 1654 data = STAILQ_FIRST(&sc->tx_free); 1655 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1656 sc->tx_nfree--; 1657 1658 data->m = m0; 1659 data->ni = ni; 1660 data->rate = rate; 1661 1662 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1663 /* Unicast frame, check if an ACK is expected. */ 1664 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 1665 IEEE80211_QOS_ACKPOLICY_NOACK) 1666 flags |= RT2573_TX_NEED_ACK; 1667 1668 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1669 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1670 USETW(wh->i_dur, dur); 1671 } 1672 1673 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1674 m0->m_pkthdr.len, rate); 1675 1676 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1677 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1678 1679 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1680 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1681 1682 return 0; 1683} 1684 1685static int 1686rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1687{ 1688 struct rum_softc *sc = ic->ic_softc; 1689 int error; 1690 1691 RUM_LOCK(sc); 1692 if (!sc->sc_running) { 1693 RUM_UNLOCK(sc); 1694 return (ENXIO); 1695 } 1696 error = mbufq_enqueue(&sc->sc_snd, m); 1697 if (error) { 1698 RUM_UNLOCK(sc); 1699 return (error); 1700 } 1701 rum_start(sc); 1702 RUM_UNLOCK(sc); 1703 1704 return (0); 1705} 1706 1707static void 1708rum_start(struct rum_softc *sc) 1709{ 1710 struct ieee80211_node *ni; 1711 struct mbuf *m; 1712 1713 RUM_LOCK_ASSERT(sc); 1714 1715 if (!sc->sc_running) 1716 return; 1717 1718 while (sc->tx_nfree >= RUM_TX_MINFREE && 1719 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1720 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1721 if (rum_tx_data(sc, m, ni) != 0) { 1722 if_inc_counter(ni->ni_vap->iv_ifp, 1723 IFCOUNTER_OERRORS, 1); 1724 ieee80211_free_node(ni); 1725 break; 1726 } 1727 } 1728} 1729 1730static void 1731rum_parent(struct ieee80211com *ic) 1732{ 1733 struct rum_softc *sc = ic->ic_softc; 1734 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1735 1736 RUM_LOCK(sc); 1737 if (sc->sc_detached) { 1738 RUM_UNLOCK(sc); 1739 return; 1740 } 1741 RUM_UNLOCK(sc); 1742 1743 if (ic->ic_nrunning > 0) { 1744 if (rum_init(sc) == 0) 1745 ieee80211_start_all(ic); 1746 else 1747 ieee80211_stop(vap); 1748 } else 1749 rum_stop(sc); 1750} 1751 1752static void 1753rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1754{ 1755 struct usb_device_request req; 1756 usb_error_t error; 1757 1758 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1759 req.bRequest = RT2573_READ_EEPROM; 1760 USETW(req.wValue, 0); 1761 USETW(req.wIndex, addr); 1762 USETW(req.wLength, len); 1763 1764 error = rum_do_request(sc, &req, buf); 1765 if (error != 0) { 1766 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1767 usbd_errstr(error)); 1768 } 1769} 1770 1771static uint32_t 1772rum_read(struct rum_softc *sc, uint16_t reg) 1773{ 1774 uint32_t val; 1775 1776 rum_read_multi(sc, reg, &val, sizeof val); 1777 1778 return le32toh(val); 1779} 1780 1781static void 1782rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1783{ 1784 struct usb_device_request req; 1785 usb_error_t error; 1786 1787 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1788 req.bRequest = RT2573_READ_MULTI_MAC; 1789 USETW(req.wValue, 0); 1790 USETW(req.wIndex, reg); 1791 USETW(req.wLength, len); 1792 1793 error = rum_do_request(sc, &req, buf); 1794 if (error != 0) { 1795 device_printf(sc->sc_dev, 1796 "could not multi read MAC register: %s\n", 1797 usbd_errstr(error)); 1798 } 1799} 1800 1801static usb_error_t 1802rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1803{ 1804 uint32_t tmp = htole32(val); 1805 1806 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1807} 1808 1809static usb_error_t 1810rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1811{ 1812 struct usb_device_request req; 1813 usb_error_t error; 1814 size_t offset; 1815 1816 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1817 req.bRequest = RT2573_WRITE_MULTI_MAC; 1818 USETW(req.wValue, 0); 1819 1820 /* write at most 64 bytes at a time */ 1821 for (offset = 0; offset < len; offset += 64) { 1822 USETW(req.wIndex, reg + offset); 1823 USETW(req.wLength, MIN(len - offset, 64)); 1824 1825 error = rum_do_request(sc, &req, (char *)buf + offset); 1826 if (error != 0) { 1827 device_printf(sc->sc_dev, 1828 "could not multi write MAC register: %s\n", 1829 usbd_errstr(error)); 1830 return (error); 1831 } 1832 } 1833 1834 return (USB_ERR_NORMAL_COMPLETION); 1835} 1836 1837static usb_error_t 1838rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1839{ 1840 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1841} 1842 1843static usb_error_t 1844rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1845{ 1846 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1847} 1848 1849static usb_error_t 1850rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1851{ 1852 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1853} 1854 1855static int 1856rum_bbp_busy(struct rum_softc *sc) 1857{ 1858 int ntries; 1859 1860 for (ntries = 0; ntries < 100; ntries++) { 1861 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1862 break; 1863 if (rum_pause(sc, hz / 100)) 1864 break; 1865 } 1866 if (ntries == 100) 1867 return (ETIMEDOUT); 1868 1869 return (0); 1870} 1871 1872static void 1873rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1874{ 1875 uint32_t tmp; 1876 1877 DPRINTFN(2, "reg=0x%08x\n", reg); 1878 1879 if (rum_bbp_busy(sc) != 0) { 1880 device_printf(sc->sc_dev, "could not write to BBP\n"); 1881 return; 1882 } 1883 1884 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1885 rum_write(sc, RT2573_PHY_CSR3, tmp); 1886} 1887 1888static uint8_t 1889rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1890{ 1891 uint32_t val; 1892 int ntries; 1893 1894 DPRINTFN(2, "reg=0x%08x\n", reg); 1895 1896 if (rum_bbp_busy(sc) != 0) { 1897 device_printf(sc->sc_dev, "could not read BBP\n"); 1898 return 0; 1899 } 1900 1901 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1902 rum_write(sc, RT2573_PHY_CSR3, val); 1903 1904 for (ntries = 0; ntries < 100; ntries++) { 1905 val = rum_read(sc, RT2573_PHY_CSR3); 1906 if (!(val & RT2573_BBP_BUSY)) 1907 return val & 0xff; 1908 if (rum_pause(sc, hz / 100)) 1909 break; 1910 } 1911 1912 device_printf(sc->sc_dev, "could not read BBP\n"); 1913 return 0; 1914} 1915 1916static void 1917rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1918{ 1919 uint32_t tmp; 1920 int ntries; 1921 1922 for (ntries = 0; ntries < 100; ntries++) { 1923 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1924 break; 1925 if (rum_pause(sc, hz / 100)) 1926 break; 1927 } 1928 if (ntries == 100) { 1929 device_printf(sc->sc_dev, "could not write to RF\n"); 1930 return; 1931 } 1932 1933 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1934 (reg & 3); 1935 rum_write(sc, RT2573_PHY_CSR4, tmp); 1936 1937 /* remember last written value in sc */ 1938 sc->rf_regs[reg] = val; 1939 1940 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1941} 1942 1943static void 1944rum_select_antenna(struct rum_softc *sc) 1945{ 1946 uint8_t bbp4, bbp77; 1947 uint32_t tmp; 1948 1949 bbp4 = rum_bbp_read(sc, 4); 1950 bbp77 = rum_bbp_read(sc, 77); 1951 1952 /* TBD */ 1953 1954 /* make sure Rx is disabled before switching antenna */ 1955 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1956 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1957 1958 rum_bbp_write(sc, 4, bbp4); 1959 rum_bbp_write(sc, 77, bbp77); 1960 1961 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1962} 1963 1964/* 1965 * Enable multi-rate retries for frames sent at OFDM rates. 1966 * In 802.11b/g mode, allow fallback to CCK rates. 1967 */ 1968static void 1969rum_enable_mrr(struct rum_softc *sc) 1970{ 1971 struct ieee80211com *ic = &sc->sc_ic; 1972 1973 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1974 rum_setbits(sc, RT2573_TXRX_CSR4, 1975 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1976 } else { 1977 rum_modbits(sc, RT2573_TXRX_CSR4, 1978 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1979 } 1980} 1981 1982static void 1983rum_set_txpreamble(struct rum_softc *sc) 1984{ 1985 struct ieee80211com *ic = &sc->sc_ic; 1986 1987 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1988 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1989 else 1990 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1991} 1992 1993static void 1994rum_set_basicrates(struct rum_softc *sc) 1995{ 1996 struct ieee80211com *ic = &sc->sc_ic; 1997 1998 /* update basic rate set */ 1999 if (ic->ic_curmode == IEEE80211_MODE_11B) { 2000 /* 11b basic rates: 1, 2Mbps */ 2001 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 2002 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 2003 /* 11a basic rates: 6, 12, 24Mbps */ 2004 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 2005 } else { 2006 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 2007 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 2008 } 2009} 2010 2011/* 2012 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 2013 * driver. 2014 */ 2015static void 2016rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 2017{ 2018 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 2019 2020 /* update all BBP registers that depend on the band */ 2021 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 2022 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 2023 if (IEEE80211_IS_CHAN_5GHZ(c)) { 2024 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 2025 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 2026 } 2027 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 2028 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 2029 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 2030 } 2031 2032 sc->bbp17 = bbp17; 2033 rum_bbp_write(sc, 17, bbp17); 2034 rum_bbp_write(sc, 96, bbp96); 2035 rum_bbp_write(sc, 104, bbp104); 2036 2037 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 2038 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 2039 rum_bbp_write(sc, 75, 0x80); 2040 rum_bbp_write(sc, 86, 0x80); 2041 rum_bbp_write(sc, 88, 0x80); 2042 } 2043 2044 rum_bbp_write(sc, 35, bbp35); 2045 rum_bbp_write(sc, 97, bbp97); 2046 rum_bbp_write(sc, 98, bbp98); 2047 2048 if (IEEE80211_IS_CHAN_2GHZ(c)) { 2049 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 2050 RT2573_PA_PE_5GHZ); 2051 } else { 2052 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 2053 RT2573_PA_PE_2GHZ); 2054 } 2055} 2056 2057static void 2058rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 2059{ 2060 struct ieee80211com *ic = &sc->sc_ic; 2061 const struct rfprog *rfprog; 2062 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 2063 int8_t power; 2064 int i, chan; 2065 2066 chan = ieee80211_chan2ieee(ic, c); 2067 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 2068 return; 2069 2070 /* select the appropriate RF settings based on what EEPROM says */ 2071 rfprog = (sc->rf_rev == RT2573_RF_5225 || 2072 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 2073 2074 /* find the settings for this channel (we know it exists) */ 2075 for (i = 0; rfprog[i].chan != chan; i++); 2076 2077 power = sc->txpow[i]; 2078 if (power < 0) { 2079 bbp94 += power; 2080 power = 0; 2081 } else if (power > 31) { 2082 bbp94 += power - 31; 2083 power = 31; 2084 } 2085 2086 /* 2087 * If we are switching from the 2GHz band to the 5GHz band or 2088 * vice-versa, BBP registers need to be reprogrammed. 2089 */ 2090 if (c->ic_flags != ic->ic_curchan->ic_flags) { 2091 rum_select_band(sc, c); 2092 rum_select_antenna(sc); 2093 } 2094 ic->ic_curchan = c; 2095 2096 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2097 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2098 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 2099 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2100 2101 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2102 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2103 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 2104 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2105 2106 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2107 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2108 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 2109 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2110 2111 rum_pause(sc, hz / 100); 2112 2113 /* enable smart mode for MIMO-capable RFs */ 2114 bbp3 = rum_bbp_read(sc, 3); 2115 2116 bbp3 &= ~RT2573_SMART_MODE; 2117 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 2118 bbp3 |= RT2573_SMART_MODE; 2119 2120 rum_bbp_write(sc, 3, bbp3); 2121 2122 if (bbp94 != RT2573_BBPR94_DEFAULT) 2123 rum_bbp_write(sc, 94, bbp94); 2124 2125 /* give the chip some extra time to do the switchover */ 2126 rum_pause(sc, hz / 100); 2127} 2128 2129static void 2130rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap) 2131{ 2132 const struct ieee80211_txparam *tp; 2133 struct ieee80211_node *ni = vap->iv_bss; 2134 struct rum_vap *rvp = RUM_VAP(vap); 2135 2136 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 2137 rvp->maxretry = tp->maxretry < 0xf ? tp->maxretry : 0xf; 2138 2139 rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) | 2140 RT2573_LONG_RETRY(rvp->maxretry), 2141 RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK); 2142} 2143 2144/* 2145 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 2146 * and HostAP operating modes. 2147 */ 2148static int 2149rum_enable_tsf_sync(struct rum_softc *sc) 2150{ 2151 struct ieee80211com *ic = &sc->sc_ic; 2152 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2153 uint32_t tmp; 2154 uint16_t bintval; 2155 2156 if (vap->iv_opmode != IEEE80211_M_STA) { 2157 /* 2158 * Change default 16ms TBTT adjustment to 8ms. 2159 * Must be done before enabling beacon generation. 2160 */ 2161 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 2162 return EIO; 2163 } 2164 2165 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 2166 2167 /* set beacon interval (in 1/16ms unit) */ 2168 bintval = vap->iv_bss->ni_intval; 2169 tmp |= bintval * 16; 2170 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 2171 2172 switch (vap->iv_opmode) { 2173 case IEEE80211_M_STA: 2174 /* 2175 * Local TSF is always updated with remote TSF on beacon 2176 * reception. 2177 */ 2178 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 2179 break; 2180 case IEEE80211_M_IBSS: 2181 /* 2182 * Local TSF is updated with remote TSF on beacon reception 2183 * only if the remote TSF is greater than local TSF. 2184 */ 2185 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 2186 tmp |= RT2573_BCN_TX_EN; 2187 break; 2188 case IEEE80211_M_HOSTAP: 2189 /* SYNC with nobody */ 2190 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 2191 tmp |= RT2573_BCN_TX_EN; 2192 break; 2193 default: 2194 device_printf(sc->sc_dev, 2195 "Enabling TSF failed. undefined opmode %d\n", 2196 vap->iv_opmode); 2197 return EINVAL; 2198 } 2199 2200 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 2201 return EIO; 2202 2203 /* refresh current sleep time */ 2204 return (rum_set_sleep_time(sc, bintval)); 2205} 2206 2207static void 2208rum_enable_tsf(struct rum_softc *sc) 2209{ 2210 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 2211 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 2212} 2213 2214static void 2215rum_abort_tsf_sync(struct rum_softc *sc) 2216{ 2217 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 2218} 2219 2220static void 2221rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 2222{ 2223 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 2224} 2225 2226static void 2227rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id) 2228{ 2229 struct ieee80211com *ic = &sc->sc_ic; 2230 uint8_t slottime; 2231 2232 slottime = IEEE80211_GET_SLOTTIME(ic); 2233 2234 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 2235 2236 DPRINTF("setting slot time to %uus\n", slottime); 2237} 2238 2239static void 2240rum_update_slot(struct ieee80211com *ic) 2241{ 2242 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb); 2243} 2244 2245static int 2246rum_wme_update(struct ieee80211com *ic) 2247{ 2248 const struct wmeParams *chanp = 2249 ic->ic_wme.wme_chanParams.cap_wmeParams; 2250 struct rum_softc *sc = ic->ic_softc; 2251 int error = 0; 2252 2253 RUM_LOCK(sc); 2254 error = rum_write(sc, RT2573_AIFSN_CSR, 2255 chanp[WME_AC_VO].wmep_aifsn << 12 | 2256 chanp[WME_AC_VI].wmep_aifsn << 8 | 2257 chanp[WME_AC_BK].wmep_aifsn << 4 | 2258 chanp[WME_AC_BE].wmep_aifsn); 2259 if (error) 2260 goto print_err; 2261 error = rum_write(sc, RT2573_CWMIN_CSR, 2262 chanp[WME_AC_VO].wmep_logcwmin << 12 | 2263 chanp[WME_AC_VI].wmep_logcwmin << 8 | 2264 chanp[WME_AC_BK].wmep_logcwmin << 4 | 2265 chanp[WME_AC_BE].wmep_logcwmin); 2266 if (error) 2267 goto print_err; 2268 error = rum_write(sc, RT2573_CWMAX_CSR, 2269 chanp[WME_AC_VO].wmep_logcwmax << 12 | 2270 chanp[WME_AC_VI].wmep_logcwmax << 8 | 2271 chanp[WME_AC_BK].wmep_logcwmax << 4 | 2272 chanp[WME_AC_BE].wmep_logcwmax); 2273 if (error) 2274 goto print_err; 2275 error = rum_write(sc, RT2573_TXOP01_CSR, 2276 chanp[WME_AC_BK].wmep_txopLimit << 16 | 2277 chanp[WME_AC_BE].wmep_txopLimit); 2278 if (error) 2279 goto print_err; 2280 error = rum_write(sc, RT2573_TXOP23_CSR, 2281 chanp[WME_AC_VO].wmep_txopLimit << 16 | 2282 chanp[WME_AC_VI].wmep_txopLimit); 2283 if (error) 2284 goto print_err; 2285 2286 memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC); 2287 2288print_err: 2289 RUM_UNLOCK(sc); 2290 if (error != 0) { 2291 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n", 2292 __func__, error); 2293 } 2294 2295 return (error); 2296} 2297 2298static void 2299rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 2300{ 2301 2302 rum_write(sc, RT2573_MAC_CSR4, 2303 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 2304 rum_write(sc, RT2573_MAC_CSR5, 2305 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 2306} 2307 2308static void 2309rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 2310{ 2311 2312 rum_write(sc, RT2573_MAC_CSR2, 2313 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 2314 rum_write(sc, RT2573_MAC_CSR3, 2315 addr[4] | addr[5] << 8 | 0xff << 16); 2316} 2317 2318static void 2319rum_setpromisc(struct rum_softc *sc) 2320{ 2321 struct ieee80211com *ic = &sc->sc_ic; 2322 2323 if (ic->ic_promisc == 0) 2324 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2325 else 2326 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2327 2328 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 2329 "entering" : "leaving"); 2330} 2331 2332static void 2333rum_update_promisc(struct ieee80211com *ic) 2334{ 2335 struct rum_softc *sc = ic->ic_softc; 2336 2337 RUM_LOCK(sc); 2338 if (sc->sc_running) 2339 rum_setpromisc(sc); 2340 RUM_UNLOCK(sc); 2341} 2342 2343static void 2344rum_update_mcast(struct ieee80211com *ic) 2345{ 2346 /* Ignore. */ 2347} 2348 2349static const char * 2350rum_get_rf(int rev) 2351{ 2352 switch (rev) { 2353 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 2354 case RT2573_RF_2528: return "RT2528"; 2355 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 2356 case RT2573_RF_5226: return "RT5226"; 2357 default: return "unknown"; 2358 } 2359} 2360 2361static void 2362rum_read_eeprom(struct rum_softc *sc) 2363{ 2364 uint16_t val; 2365#ifdef RUM_DEBUG 2366 int i; 2367#endif 2368 2369 /* read MAC address */ 2370 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 2371 2372 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 2373 val = le16toh(val); 2374 sc->rf_rev = (val >> 11) & 0x1f; 2375 sc->hw_radio = (val >> 10) & 0x1; 2376 sc->rx_ant = (val >> 4) & 0x3; 2377 sc->tx_ant = (val >> 2) & 0x3; 2378 sc->nb_ant = val & 0x3; 2379 2380 DPRINTF("RF revision=%d\n", sc->rf_rev); 2381 2382 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 2383 val = le16toh(val); 2384 sc->ext_5ghz_lna = (val >> 6) & 0x1; 2385 sc->ext_2ghz_lna = (val >> 4) & 0x1; 2386 2387 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 2388 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 2389 2390 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 2391 val = le16toh(val); 2392 if ((val & 0xff) != 0xff) 2393 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 2394 2395 /* Only [-10, 10] is valid */ 2396 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 2397 sc->rssi_2ghz_corr = 0; 2398 2399 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 2400 val = le16toh(val); 2401 if ((val & 0xff) != 0xff) 2402 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 2403 2404 /* Only [-10, 10] is valid */ 2405 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 2406 sc->rssi_5ghz_corr = 0; 2407 2408 if (sc->ext_2ghz_lna) 2409 sc->rssi_2ghz_corr -= 14; 2410 if (sc->ext_5ghz_lna) 2411 sc->rssi_5ghz_corr -= 14; 2412 2413 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2414 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2415 2416 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2417 val = le16toh(val); 2418 if ((val & 0xff) != 0xff) 2419 sc->rffreq = val & 0xff; 2420 2421 DPRINTF("RF freq=%d\n", sc->rffreq); 2422 2423 /* read Tx power for all a/b/g channels */ 2424 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2425 /* XXX default Tx power for 802.11a channels */ 2426 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2427#ifdef RUM_DEBUG 2428 for (i = 0; i < 14; i++) 2429 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2430#endif 2431 2432 /* read default values for BBP registers */ 2433 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2434#ifdef RUM_DEBUG 2435 for (i = 0; i < 14; i++) { 2436 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2437 continue; 2438 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2439 sc->bbp_prom[i].val); 2440 } 2441#endif 2442} 2443 2444static int 2445rum_bbp_wakeup(struct rum_softc *sc) 2446{ 2447 unsigned int ntries; 2448 2449 for (ntries = 0; ntries < 100; ntries++) { 2450 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2451 break; 2452 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2453 if (rum_pause(sc, hz / 100)) 2454 break; 2455 } 2456 if (ntries == 100) { 2457 device_printf(sc->sc_dev, 2458 "timeout waiting for BBP/RF to wakeup\n"); 2459 return (ETIMEDOUT); 2460 } 2461 2462 return (0); 2463} 2464 2465static int 2466rum_bbp_init(struct rum_softc *sc) 2467{ 2468 int i, ntries; 2469 2470 /* wait for BBP to be ready */ 2471 for (ntries = 0; ntries < 100; ntries++) { 2472 const uint8_t val = rum_bbp_read(sc, 0); 2473 if (val != 0 && val != 0xff) 2474 break; 2475 if (rum_pause(sc, hz / 100)) 2476 break; 2477 } 2478 if (ntries == 100) { 2479 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2480 return EIO; 2481 } 2482 2483 /* initialize BBP registers to default values */ 2484 for (i = 0; i < nitems(rum_def_bbp); i++) 2485 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2486 2487 /* write vendor-specific BBP values (from EEPROM) */ 2488 for (i = 0; i < 16; i++) { 2489 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2490 continue; 2491 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2492 } 2493 2494 return 0; 2495} 2496 2497static void 2498rum_clr_shkey_regs(struct rum_softc *sc) 2499{ 2500 rum_write(sc, RT2573_SEC_CSR0, 0); 2501 rum_write(sc, RT2573_SEC_CSR1, 0); 2502 rum_write(sc, RT2573_SEC_CSR5, 0); 2503} 2504 2505static int 2506rum_init(struct rum_softc *sc) 2507{ 2508 struct ieee80211com *ic = &sc->sc_ic; 2509 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2510 uint32_t tmp; 2511 int i, ret; 2512 2513 RUM_LOCK(sc); 2514 if (sc->sc_running) { 2515 ret = 0; 2516 goto end; 2517 } 2518 2519 /* initialize MAC registers to default values */ 2520 for (i = 0; i < nitems(rum_def_mac); i++) 2521 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2522 2523 /* reset some WME parameters to default values */ 2524 sc->wme_params[0].wmep_aifsn = 2; 2525 sc->wme_params[0].wmep_logcwmin = 4; 2526 sc->wme_params[0].wmep_logcwmax = 10; 2527 2528 /* set host ready */ 2529 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2530 rum_write(sc, RT2573_MAC_CSR1, 0); 2531 2532 /* wait for BBP/RF to wakeup */ 2533 if ((ret = rum_bbp_wakeup(sc)) != 0) 2534 goto end; 2535 2536 if ((ret = rum_bbp_init(sc)) != 0) 2537 goto end; 2538 2539 /* select default channel */ 2540 rum_select_band(sc, ic->ic_curchan); 2541 rum_select_antenna(sc); 2542 rum_set_chan(sc, ic->ic_curchan); 2543 2544 /* clear STA registers */ 2545 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2546 2547 /* clear security registers (if required) */ 2548 if (sc->sc_clr_shkeys == 0) { 2549 rum_clr_shkey_regs(sc); 2550 sc->sc_clr_shkeys = 1; 2551 } 2552 2553 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2554 2555 /* initialize ASIC */ 2556 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2557 2558 /* 2559 * Allocate Tx and Rx xfer queues. 2560 */ 2561 rum_setup_tx_list(sc); 2562 2563 /* update Rx filter */ 2564 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2565 2566 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2567 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2568 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2569 RT2573_DROP_ACKCTS; 2570 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2571 tmp |= RT2573_DROP_TODS; 2572 if (ic->ic_promisc == 0) 2573 tmp |= RT2573_DROP_NOT_TO_ME; 2574 } 2575 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2576 2577 sc->sc_running = 1; 2578 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2579 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2580 2581end: RUM_UNLOCK(sc); 2582 2583 if (ret != 0) 2584 rum_stop(sc); 2585 2586 return ret; 2587} 2588 2589static void 2590rum_stop(struct rum_softc *sc) 2591{ 2592 2593 RUM_LOCK(sc); 2594 if (!sc->sc_running) { 2595 RUM_UNLOCK(sc); 2596 return; 2597 } 2598 sc->sc_running = 0; 2599 RUM_UNLOCK(sc); 2600 2601 /* 2602 * Drain the USB transfers, if not already drained: 2603 */ 2604 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2605 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2606 2607 RUM_LOCK(sc); 2608 rum_unsetup_tx_list(sc); 2609 2610 /* disable Rx */ 2611 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2612 2613 /* reset ASIC */ 2614 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2615 rum_write(sc, RT2573_MAC_CSR1, 0); 2616 RUM_UNLOCK(sc); 2617} 2618 2619static void 2620rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2621{ 2622 uint16_t reg = RT2573_MCU_CODE_BASE; 2623 usb_error_t err; 2624 2625 /* copy firmware image into NIC */ 2626 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2627 err = rum_write(sc, reg, UGETDW(ucode)); 2628 if (err) { 2629 /* firmware already loaded ? */ 2630 device_printf(sc->sc_dev, "Firmware load " 2631 "failure! (ignored)\n"); 2632 break; 2633 } 2634 } 2635 2636 err = rum_do_mcu_request(sc, RT2573_MCU_RUN); 2637 if (err != USB_ERR_NORMAL_COMPLETION) { 2638 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2639 usbd_errstr(err)); 2640 } 2641 2642 /* give the chip some time to boot */ 2643 rum_pause(sc, hz / 8); 2644} 2645 2646static int 2647rum_set_sleep_time(struct rum_softc *sc, uint16_t bintval) 2648{ 2649 struct ieee80211com *ic = &sc->sc_ic; 2650 usb_error_t uerror; 2651 int exp, delay; 2652 2653 RUM_LOCK_ASSERT(sc); 2654 2655 exp = ic->ic_lintval / bintval; 2656 delay = ic->ic_lintval % bintval; 2657 2658 if (exp > RT2573_TBCN_EXP_MAX) 2659 exp = RT2573_TBCN_EXP_MAX; 2660 if (delay > RT2573_TBCN_DELAY_MAX) 2661 delay = RT2573_TBCN_DELAY_MAX; 2662 2663 uerror = rum_modbits(sc, RT2573_MAC_CSR11, 2664 RT2573_TBCN_EXP(exp) | 2665 RT2573_TBCN_DELAY(delay), 2666 RT2573_TBCN_EXP(RT2573_TBCN_EXP_MAX) | 2667 RT2573_TBCN_DELAY(RT2573_TBCN_DELAY_MAX)); 2668 2669 if (uerror != USB_ERR_NORMAL_COMPLETION) 2670 return (EIO); 2671 2672 sc->sc_sleep_time = IEEE80211_TU_TO_TICKS(exp * bintval + delay); 2673 2674 return (0); 2675} 2676 2677static int 2678rum_reset(struct ieee80211vap *vap, u_long cmd) 2679{ 2680 struct ieee80211com *ic = vap->iv_ic; 2681 struct ieee80211_node *ni; 2682 struct rum_softc *sc = ic->ic_softc; 2683 int error; 2684 2685 switch (cmd) { 2686 case IEEE80211_IOC_POWERSAVE: 2687 error = 0; 2688 break; 2689 case IEEE80211_IOC_POWERSAVESLEEP: 2690 ni = ieee80211_ref_node(vap->iv_bss); 2691 2692 RUM_LOCK(sc); 2693 error = rum_set_sleep_time(sc, ni->ni_intval); 2694 if (vap->iv_state == IEEE80211_S_SLEEP) { 2695 /* Use new values for wakeup timer. */ 2696 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 2697 rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 2698 } 2699 /* XXX send reassoc */ 2700 RUM_UNLOCK(sc); 2701 2702 ieee80211_free_node(ni); 2703 break; 2704 default: 2705 error = ENETRESET; 2706 break; 2707 } 2708 2709 return (error); 2710} 2711 2712static int 2713rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2714{ 2715 struct ieee80211com *ic = vap->iv_ic; 2716 struct rum_vap *rvp = RUM_VAP(vap); 2717 struct mbuf *m = rvp->bcn_mbuf; 2718 const struct ieee80211_txparam *tp; 2719 struct rum_tx_desc desc; 2720 2721 RUM_LOCK_ASSERT(sc); 2722 2723 if (m == NULL) 2724 return EINVAL; 2725 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2726 return EINVAL; 2727 2728 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2729 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP, 2730 RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate); 2731 2732 /* copy the Tx descriptor into NIC memory */ 2733 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2734 RT2573_TX_DESC_SIZE) != 0) 2735 return EIO; 2736 2737 /* copy beacon header and payload into NIC memory */ 2738 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2739 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2740 return EIO; 2741 2742 return 0; 2743} 2744 2745static int 2746rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2747{ 2748 struct rum_vap *rvp = RUM_VAP(vap); 2749 struct ieee80211_node *ni = vap->iv_bss; 2750 struct mbuf *m; 2751 2752 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2753 return EINVAL; 2754 2755 m = ieee80211_beacon_alloc(ni); 2756 if (m == NULL) 2757 return ENOMEM; 2758 2759 if (rvp->bcn_mbuf != NULL) 2760 m_freem(rvp->bcn_mbuf); 2761 2762 rvp->bcn_mbuf = m; 2763 2764 return (rum_set_beacon(sc, vap)); 2765} 2766 2767static void 2768rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data, 2769 uint8_t rvp_id) 2770{ 2771 struct ieee80211vap *vap = data->vap; 2772 2773 rum_set_beacon(sc, vap); 2774} 2775 2776static void 2777rum_update_beacon(struct ieee80211vap *vap, int item) 2778{ 2779 struct ieee80211com *ic = vap->iv_ic; 2780 struct rum_softc *sc = ic->ic_softc; 2781 struct rum_vap *rvp = RUM_VAP(vap); 2782 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 2783 struct ieee80211_node *ni = vap->iv_bss; 2784 struct mbuf *m = rvp->bcn_mbuf; 2785 int mcast = 0; 2786 2787 RUM_LOCK(sc); 2788 if (m == NULL) { 2789 m = ieee80211_beacon_alloc(ni); 2790 if (m == NULL) { 2791 device_printf(sc->sc_dev, 2792 "%s: could not allocate beacon frame\n", __func__); 2793 RUM_UNLOCK(sc); 2794 return; 2795 } 2796 rvp->bcn_mbuf = m; 2797 } 2798 2799 switch (item) { 2800 case IEEE80211_BEACON_ERP: 2801 rum_update_slot(ic); 2802 break; 2803 case IEEE80211_BEACON_TIM: 2804 mcast = 1; /*TODO*/ 2805 break; 2806 default: 2807 break; 2808 } 2809 RUM_UNLOCK(sc); 2810 2811 setbit(bo->bo_flags, item); 2812 ieee80211_beacon_update(ni, m, mcast); 2813 2814 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb); 2815} 2816 2817static int 2818rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k, 2819 uint16_t base) 2820{ 2821 2822 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen)) 2823 return EIO; 2824 2825 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) { 2826 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE, 2827 k->wk_txmic, 8)) 2828 return EIO; 2829 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8, 2830 k->wk_rxmic, 8)) 2831 return EIO; 2832 } 2833 2834 return 0; 2835} 2836 2837static void 2838rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data, 2839 uint8_t rvp_id) 2840{ 2841 struct ieee80211_key *k = &data->key; 2842 uint8_t mode; 2843 2844 if (sc->sc_clr_shkeys == 0) { 2845 rum_clr_shkey_regs(sc); 2846 sc->sc_clr_shkeys = 1; 2847 } 2848 2849 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2850 if (mode == 0) 2851 goto print_err; 2852 2853 DPRINTFN(1, "setting group key %d for vap %d, mode %d " 2854 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2855 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2856 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2857 2858 /* Install the key. */ 2859 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0) 2860 goto print_err; 2861 2862 /* Set cipher mode. */ 2863 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2864 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX, 2865 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX) 2866 != 0) 2867 goto print_err; 2868 2869 /* Mark this key as valid. */ 2870 if (rum_setbits(sc, RT2573_SEC_CSR0, 2871 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0) 2872 goto print_err; 2873 2874 return; 2875 2876print_err: 2877 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n", 2878 __func__, k->wk_keyix, rvp_id); 2879} 2880 2881static void 2882rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data, 2883 uint8_t rvp_id) 2884{ 2885 struct ieee80211_key *k = &data->key; 2886 2887 DPRINTF("%s: removing group key %d for vap %d\n", __func__, 2888 k->wk_keyix, rvp_id); 2889 rum_clrbits(sc, 2890 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2891 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX); 2892 rum_clrbits(sc, RT2573_SEC_CSR0, 2893 rvp_id * RT2573_SKEY_MAX + k->wk_keyix); 2894} 2895 2896static void 2897rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data, 2898 uint8_t rvp_id) 2899{ 2900 struct ieee80211_key *k = &data->key; 2901 uint8_t buf[IEEE80211_ADDR_LEN + 1]; 2902 uint8_t mode; 2903 2904 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2905 if (mode == 0) 2906 goto print_err; 2907 2908 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d " 2909 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2910 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2911 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2912 2913 /* Install the key. */ 2914 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0) 2915 goto print_err; 2916 2917 IEEE80211_ADDR_COPY(buf, k->wk_macaddr); 2918 buf[IEEE80211_ADDR_LEN] = mode; 2919 2920 /* Set transmitter address and cipher mode. */ 2921 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix), 2922 buf, sizeof buf) != 0) 2923 goto print_err; 2924 2925 /* Enable key table lookup for this vap. */ 2926 if (sc->vap_key_count[rvp_id]++ == 0) 2927 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0) 2928 goto print_err; 2929 2930 /* Mark this key as valid. */ 2931 if (rum_setbits(sc, 2932 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2933 1 << (k->wk_keyix % 32)) != 0) 2934 goto print_err; 2935 2936 return; 2937 2938print_err: 2939 device_printf(sc->sc_dev, 2940 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix, 2941 rvp_id); 2942} 2943 2944static void 2945rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data, 2946 uint8_t rvp_id) 2947{ 2948 struct ieee80211_key *k = &data->key; 2949 2950 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix); 2951 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2952 1 << (k->wk_keyix % 32)); 2953 sc->keys_bmap &= ~(1ULL << k->wk_keyix); 2954 if (--sc->vap_key_count[rvp_id] == 0) 2955 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id); 2956} 2957 2958static int 2959rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 2960 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 2961{ 2962 struct rum_softc *sc = vap->iv_ic->ic_softc; 2963 uint8_t i; 2964 2965 if (!(&vap->iv_nw_keys[0] <= k && 2966 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 2967 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 2968 RUM_LOCK(sc); 2969 for (i = 0; i < RT2573_ADDR_MAX; i++) { 2970 if ((sc->keys_bmap & (1ULL << i)) == 0) { 2971 sc->keys_bmap |= (1ULL << i); 2972 *keyix = i; 2973 break; 2974 } 2975 } 2976 RUM_UNLOCK(sc); 2977 if (i == RT2573_ADDR_MAX) { 2978 device_printf(sc->sc_dev, 2979 "%s: no free space in the key table\n", 2980 __func__); 2981 return 0; 2982 } 2983 } else 2984 *keyix = 0; 2985 } else { 2986 *keyix = k - vap->iv_nw_keys; 2987 } 2988 *rxkeyix = *keyix; 2989 return 1; 2990} 2991 2992static int 2993rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 2994{ 2995 struct rum_softc *sc = vap->iv_ic->ic_softc; 2996 int group; 2997 2998 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 2999 /* Not for us. */ 3000 return 1; 3001 } 3002 3003 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 3004 3005 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 3006 group ? rum_group_key_set_cb : rum_pair_key_set_cb); 3007} 3008 3009static int 3010rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 3011{ 3012 struct rum_softc *sc = vap->iv_ic->ic_softc; 3013 int group; 3014 3015 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 3016 /* Not for us. */ 3017 return 1; 3018 } 3019 3020 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 3021 3022 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 3023 group ? rum_group_key_del_cb : rum_pair_key_del_cb); 3024} 3025 3026static int 3027rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3028 const struct ieee80211_bpf_params *params) 3029{ 3030 struct rum_softc *sc = ni->ni_ic->ic_softc; 3031 int ret; 3032 3033 RUM_LOCK(sc); 3034 /* prevent management frames from being sent if we're not ready */ 3035 if (!sc->sc_running) { 3036 ret = ENETDOWN; 3037 goto bad; 3038 } 3039 if (sc->tx_nfree < RUM_TX_MINFREE) { 3040 ret = EIO; 3041 goto bad; 3042 } 3043 3044 if (params == NULL) { 3045 /* 3046 * Legacy path; interpret frame contents to decide 3047 * precisely how to send the frame. 3048 */ 3049 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 3050 goto bad; 3051 } else { 3052 /* 3053 * Caller supplied explicit parameters to use in 3054 * sending the frame. 3055 */ 3056 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 3057 goto bad; 3058 } 3059 RUM_UNLOCK(sc); 3060 3061 return 0; 3062bad: 3063 RUM_UNLOCK(sc); 3064 m_freem(m); 3065 return ret; 3066} 3067 3068static void 3069rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 3070{ 3071 struct ieee80211vap *vap = ni->ni_vap; 3072 struct rum_vap *rvp = RUM_VAP(vap); 3073 3074 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 3075 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 3076 3077 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 3078} 3079 3080static void 3081rum_ratectl_timeout(void *arg) 3082{ 3083 struct rum_vap *rvp = arg; 3084 struct ieee80211vap *vap = &rvp->vap; 3085 struct ieee80211com *ic = vap->iv_ic; 3086 3087 ieee80211_runtask(ic, &rvp->ratectl_task); 3088} 3089 3090static void 3091rum_ratectl_task(void *arg, int pending) 3092{ 3093 struct rum_vap *rvp = arg; 3094 struct ieee80211vap *vap = &rvp->vap; 3095 struct rum_softc *sc = vap->iv_ic->ic_softc; 3096 struct ieee80211_node *ni; 3097 int ok[3], fail; 3098 int sum, success, retrycnt; 3099 3100 RUM_LOCK(sc); 3101 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */ 3102 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 3103 3104 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */ 3105 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */ 3106 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */ 3107 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 3108 3109 success = ok[0] + ok[1] + ok[2]; 3110 sum = success + fail; 3111 /* XXX at least */ 3112 retrycnt = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1); 3113 3114 if (sum != 0) { 3115 ni = ieee80211_ref_node(vap->iv_bss); 3116 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 3117 (void) ieee80211_ratectl_rate(ni, NULL, 0); 3118 ieee80211_free_node(ni); 3119 } 3120 3121 /* count TX retry-fail as Tx errors */ 3122 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail); 3123 3124 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 3125 RUM_UNLOCK(sc); 3126} 3127 3128static void 3129rum_scan_start(struct ieee80211com *ic) 3130{ 3131 struct rum_softc *sc = ic->ic_softc; 3132 3133 RUM_LOCK(sc); 3134 rum_abort_tsf_sync(sc); 3135 rum_set_bssid(sc, ieee80211broadcastaddr); 3136 RUM_UNLOCK(sc); 3137 3138} 3139 3140static void 3141rum_scan_end(struct ieee80211com *ic) 3142{ 3143 struct rum_softc *sc = ic->ic_softc; 3144 3145 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) { 3146 RUM_LOCK(sc); 3147 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 3148 rum_enable_tsf_sync(sc); 3149 else 3150 rum_enable_tsf(sc); 3151 rum_set_bssid(sc, sc->sc_bssid); 3152 RUM_UNLOCK(sc); 3153 } 3154} 3155 3156static void 3157rum_set_channel(struct ieee80211com *ic) 3158{ 3159 struct rum_softc *sc = ic->ic_softc; 3160 3161 RUM_LOCK(sc); 3162 rum_set_chan(sc, ic->ic_curchan); 3163 RUM_UNLOCK(sc); 3164} 3165 3166static void 3167rum_getradiocaps(struct ieee80211com *ic, 3168 int maxchans, int *nchans, struct ieee80211_channel chans[]) 3169{ 3170 struct rum_softc *sc = ic->ic_softc; 3171 uint8_t bands[IEEE80211_MODE_BYTES]; 3172 3173 memset(bands, 0, sizeof(bands)); 3174 setbit(bands, IEEE80211_MODE_11B); 3175 setbit(bands, IEEE80211_MODE_11G); 3176 ieee80211_add_channels_default_2ghz(chans, maxchans, nchans, bands, 0); 3177 3178 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) { 3179 setbit(bands, IEEE80211_MODE_11A); 3180 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans, 3181 rum_chan_5ghz, nitems(rum_chan_5ghz), bands, 0); 3182 } 3183} 3184 3185static int 3186rum_get_rssi(struct rum_softc *sc, uint8_t raw) 3187{ 3188 struct ieee80211com *ic = &sc->sc_ic; 3189 int lna, agc, rssi; 3190 3191 lna = (raw >> 5) & 0x3; 3192 agc = raw & 0x1f; 3193 3194 if (lna == 0) { 3195 /* 3196 * No RSSI mapping 3197 * 3198 * NB: Since RSSI is relative to noise floor, -1 is 3199 * adequate for caller to know error happened. 3200 */ 3201 return -1; 3202 } 3203 3204 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 3205 3206 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 3207 rssi += sc->rssi_2ghz_corr; 3208 3209 if (lna == 1) 3210 rssi -= 64; 3211 else if (lna == 2) 3212 rssi -= 74; 3213 else if (lna == 3) 3214 rssi -= 90; 3215 } else { 3216 rssi += sc->rssi_5ghz_corr; 3217 3218 if (!sc->ext_5ghz_lna && lna != 1) 3219 rssi += 4; 3220 3221 if (lna == 1) 3222 rssi -= 64; 3223 else if (lna == 2) 3224 rssi -= 86; 3225 else if (lna == 3) 3226 rssi -= 100; 3227 } 3228 return rssi; 3229} 3230 3231static int 3232rum_pause(struct rum_softc *sc, int timeout) 3233{ 3234 3235 usb_pause_mtx(&sc->sc_mtx, timeout); 3236 return (0); 3237} 3238 3239static device_method_t rum_methods[] = { 3240 /* Device interface */ 3241 DEVMETHOD(device_probe, rum_match), 3242 DEVMETHOD(device_attach, rum_attach), 3243 DEVMETHOD(device_detach, rum_detach), 3244 DEVMETHOD_END 3245}; 3246 3247static driver_t rum_driver = { 3248 .name = "rum", 3249 .methods = rum_methods, 3250 .size = sizeof(struct rum_softc), 3251}; 3252 3253static devclass_t rum_devclass; 3254 3255DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 3256MODULE_DEPEND(rum, wlan, 1, 1, 1); 3257MODULE_DEPEND(rum, usb, 1, 1, 1); 3258MODULE_VERSION(rum, 1); 3259USB_PNP_HOST_INFO(rum_devs); 3260