if_rum.c revision 343760
1/* $FreeBSD: stable/11/sys/dev/usb/wlan/if_rum.c 343760 2019-02-05 03:01:10Z 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 343760 2019-02-05 03:01:10Z 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_2ghz[] = 338 { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 }; 339 340static const uint8_t rum_chan_5ghz[] = 341 { 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64, 342 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 343 149, 153, 157, 161, 165 }; 344 345static const struct rfprog { 346 uint8_t chan; 347 uint32_t r1, r2, r3, r4; 348} rum_rf5226[] = { 349 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 350 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 351 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 352 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 353 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 354 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 355 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 356 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 357 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 358 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 359 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 360 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 361 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 362 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 363 364 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 365 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 366 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 367 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 368 369 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 370 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 371 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 372 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 373 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 374 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 375 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 376 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 377 378 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 379 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 380 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 381 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 382 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 383 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 384 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 385 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 386 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 387 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 388 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 389 390 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 391 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 392 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 393 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 394 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 395}, rum_rf5225[] = { 396 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 397 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 398 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 399 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 400 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 401 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 402 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 403 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 404 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 405 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 406 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 407 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 408 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 409 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 410 411 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 412 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 413 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 414 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 415 416 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 417 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 418 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 419 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 420 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 421 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 422 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 423 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 424 425 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 426 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 427 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 428 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 429 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 430 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 431 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 432 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 433 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 434 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 435 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 436 437 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 438 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 439 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 440 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 441 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 442}; 443 444static const struct usb_config rum_config[RUM_N_TRANSFER] = { 445 [RUM_BULK_WR] = { 446 .type = UE_BULK, 447 .endpoint = UE_ADDR_ANY, 448 .direction = UE_DIR_OUT, 449 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 450 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 451 .callback = rum_bulk_write_callback, 452 .timeout = 5000, /* ms */ 453 }, 454 [RUM_BULK_RD] = { 455 .type = UE_BULK, 456 .endpoint = UE_ADDR_ANY, 457 .direction = UE_DIR_IN, 458 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 459 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 460 .callback = rum_bulk_read_callback, 461 }, 462}; 463 464static int 465rum_match(device_t self) 466{ 467 struct usb_attach_arg *uaa = device_get_ivars(self); 468 469 if (uaa->usb_mode != USB_MODE_HOST) 470 return (ENXIO); 471 if (uaa->info.bConfigIndex != 0) 472 return (ENXIO); 473 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 474 return (ENXIO); 475 476 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 477} 478 479static int 480rum_attach(device_t self) 481{ 482 struct usb_attach_arg *uaa = device_get_ivars(self); 483 struct rum_softc *sc = device_get_softc(self); 484 struct ieee80211com *ic = &sc->sc_ic; 485 uint32_t tmp; 486 uint8_t iface_index; 487 int error, ntries; 488 489 device_set_usb_desc(self); 490 sc->sc_udev = uaa->device; 491 sc->sc_dev = self; 492 493 RUM_LOCK_INIT(sc); 494 RUM_CMDQ_LOCK_INIT(sc); 495 mbufq_init(&sc->sc_snd, ifqmaxlen); 496 497 iface_index = RT2573_IFACE_INDEX; 498 error = usbd_transfer_setup(uaa->device, &iface_index, 499 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 500 if (error) { 501 device_printf(self, "could not allocate USB transfers, " 502 "err=%s\n", usbd_errstr(error)); 503 goto detach; 504 } 505 506 RUM_LOCK(sc); 507 /* retrieve RT2573 rev. no */ 508 for (ntries = 0; ntries < 100; ntries++) { 509 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 510 break; 511 if (rum_pause(sc, hz / 100)) 512 break; 513 } 514 if (ntries == 100) { 515 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 516 RUM_UNLOCK(sc); 517 goto detach; 518 } 519 520 /* retrieve MAC address and various other things from EEPROM */ 521 rum_read_eeprom(sc); 522 523 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 524 tmp, rum_get_rf(sc->rf_rev)); 525 526 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 527 RUM_UNLOCK(sc); 528 529 ic->ic_softc = sc; 530 ic->ic_name = device_get_nameunit(self); 531 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 532 533 /* set device capabilities */ 534 ic->ic_caps = 535 IEEE80211_C_STA /* station mode supported */ 536 | IEEE80211_C_IBSS /* IBSS mode supported */ 537 | IEEE80211_C_MONITOR /* monitor mode supported */ 538 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 539 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 540 | IEEE80211_C_TXPMGT /* tx power management */ 541 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 542 | IEEE80211_C_SHSLOT /* short slot time supported */ 543 | IEEE80211_C_BGSCAN /* bg scanning supported */ 544 | IEEE80211_C_WPA /* 802.11i */ 545 | IEEE80211_C_WME /* 802.11e */ 546 | IEEE80211_C_PMGT /* Station-side power mgmt */ 547 | IEEE80211_C_SWSLEEP /* net80211 managed power mgmt */ 548 ; 549 550 ic->ic_cryptocaps = 551 IEEE80211_CRYPTO_WEP | 552 IEEE80211_CRYPTO_AES_CCM | 553 IEEE80211_CRYPTO_TKIPMIC | 554 IEEE80211_CRYPTO_TKIP; 555 556 rum_getradiocaps(ic, IEEE80211_CHAN_MAX, &ic->ic_nchans, 557 ic->ic_channels); 558 559 ieee80211_ifattach(ic); 560 ic->ic_update_promisc = rum_update_promisc; 561 ic->ic_raw_xmit = rum_raw_xmit; 562 ic->ic_scan_start = rum_scan_start; 563 ic->ic_scan_end = rum_scan_end; 564 ic->ic_set_channel = rum_set_channel; 565 ic->ic_getradiocaps = rum_getradiocaps; 566 ic->ic_transmit = rum_transmit; 567 ic->ic_parent = rum_parent; 568 ic->ic_vap_create = rum_vap_create; 569 ic->ic_vap_delete = rum_vap_delete; 570 ic->ic_updateslot = rum_update_slot; 571 ic->ic_wme.wme_update = rum_wme_update; 572 ic->ic_update_mcast = rum_update_mcast; 573 574 ieee80211_radiotap_attach(ic, 575 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 576 RT2573_TX_RADIOTAP_PRESENT, 577 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 578 RT2573_RX_RADIOTAP_PRESENT); 579 580 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 581 582 if (bootverbose) 583 ieee80211_announce(ic); 584 585 return (0); 586 587detach: 588 rum_detach(self); 589 return (ENXIO); /* failure */ 590} 591 592static int 593rum_detach(device_t self) 594{ 595 struct rum_softc *sc = device_get_softc(self); 596 struct ieee80211com *ic = &sc->sc_ic; 597 598 /* Prevent further ioctls */ 599 RUM_LOCK(sc); 600 sc->sc_detached = 1; 601 RUM_UNLOCK(sc); 602 603 /* stop all USB transfers */ 604 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 605 606 /* free TX list, if any */ 607 RUM_LOCK(sc); 608 rum_unsetup_tx_list(sc); 609 RUM_UNLOCK(sc); 610 611 if (ic->ic_softc == sc) { 612 ieee80211_draintask(ic, &sc->cmdq_task); 613 ieee80211_ifdetach(ic); 614 } 615 616 mbufq_drain(&sc->sc_snd); 617 RUM_CMDQ_LOCK_DESTROY(sc); 618 RUM_LOCK_DESTROY(sc); 619 620 return (0); 621} 622 623static usb_error_t 624rum_do_request(struct rum_softc *sc, 625 struct usb_device_request *req, void *data) 626{ 627 usb_error_t err; 628 int ntries = 10; 629 630 while (ntries--) { 631 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 632 req, data, 0, NULL, 250 /* ms */); 633 if (err == 0) 634 break; 635 636 DPRINTFN(1, "Control request failed, %s (retrying)\n", 637 usbd_errstr(err)); 638 if (rum_pause(sc, hz / 100)) 639 break; 640 } 641 return (err); 642} 643 644static usb_error_t 645rum_do_mcu_request(struct rum_softc *sc, int request) 646{ 647 struct usb_device_request req; 648 649 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 650 req.bRequest = RT2573_MCU_CNTL; 651 USETW(req.wValue, request); 652 USETW(req.wIndex, 0); 653 USETW(req.wLength, 0); 654 655 return (rum_do_request(sc, &req, NULL)); 656} 657 658static struct ieee80211vap * 659rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 660 enum ieee80211_opmode opmode, int flags, 661 const uint8_t bssid[IEEE80211_ADDR_LEN], 662 const uint8_t mac[IEEE80211_ADDR_LEN]) 663{ 664 struct rum_softc *sc = ic->ic_softc; 665 struct rum_vap *rvp; 666 struct ieee80211vap *vap; 667 668 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 669 return NULL; 670 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 671 vap = &rvp->vap; 672 /* enable s/w bmiss handling for sta mode */ 673 674 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 675 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 676 /* out of memory */ 677 free(rvp, M_80211_VAP); 678 return (NULL); 679 } 680 681 /* override state transition machine */ 682 rvp->newstate = vap->iv_newstate; 683 vap->iv_newstate = rum_newstate; 684 vap->iv_key_alloc = rum_key_alloc; 685 vap->iv_key_set = rum_key_set; 686 vap->iv_key_delete = rum_key_delete; 687 vap->iv_update_beacon = rum_update_beacon; 688 vap->iv_reset = rum_reset; 689 vap->iv_max_aid = RT2573_ADDR_MAX; 690 691 if (opmode == IEEE80211_M_STA) { 692 /* 693 * Move device to the sleep state when 694 * beacon is received and there is no data for us. 695 * 696 * Used only for IEEE80211_S_SLEEP state. 697 */ 698 rvp->recv_mgmt = vap->iv_recv_mgmt; 699 vap->iv_recv_mgmt = rum_sta_recv_mgmt; 700 701 /* Ignored while sleeping. */ 702 rvp->bmiss = vap->iv_bmiss; 703 vap->iv_bmiss = rum_beacon_miss; 704 } 705 706 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 707 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 708 ieee80211_ratectl_init(vap); 709 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 710 /* complete setup */ 711 ieee80211_vap_attach(vap, ieee80211_media_change, 712 ieee80211_media_status, mac); 713 ic->ic_opmode = opmode; 714 return vap; 715} 716 717static void 718rum_vap_delete(struct ieee80211vap *vap) 719{ 720 struct rum_vap *rvp = RUM_VAP(vap); 721 struct ieee80211com *ic = vap->iv_ic; 722 723 m_freem(rvp->bcn_mbuf); 724 usb_callout_drain(&rvp->ratectl_ch); 725 ieee80211_draintask(ic, &rvp->ratectl_task); 726 ieee80211_ratectl_deinit(vap); 727 ieee80211_vap_detach(vap); 728 free(rvp, M_80211_VAP); 729} 730 731static void 732rum_cmdq_cb(void *arg, int pending) 733{ 734 struct rum_softc *sc = arg; 735 struct rum_cmdq *rc; 736 737 RUM_CMDQ_LOCK(sc); 738 while (sc->cmdq[sc->cmdq_first].func != NULL) { 739 rc = &sc->cmdq[sc->cmdq_first]; 740 RUM_CMDQ_UNLOCK(sc); 741 742 RUM_LOCK(sc); 743 rc->func(sc, &rc->data, rc->rvp_id); 744 RUM_UNLOCK(sc); 745 746 RUM_CMDQ_LOCK(sc); 747 memset(rc, 0, sizeof (*rc)); 748 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 749 } 750 RUM_CMDQ_UNLOCK(sc); 751} 752 753static int 754rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 755 uint8_t rvp_id, CMD_FUNC_PROTO) 756{ 757 struct ieee80211com *ic = &sc->sc_ic; 758 759 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 760 761 RUM_CMDQ_LOCK(sc); 762 if (sc->cmdq[sc->cmdq_last].func != NULL) { 763 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 764 RUM_CMDQ_UNLOCK(sc); 765 766 return EAGAIN; 767 } 768 769 if (ptr != NULL) 770 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 771 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 772 sc->cmdq[sc->cmdq_last].func = func; 773 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 774 RUM_CMDQ_UNLOCK(sc); 775 776 ieee80211_runtask(ic, &sc->cmdq_task); 777 778 return 0; 779} 780 781static void 782rum_tx_free(struct rum_tx_data *data, int txerr) 783{ 784 struct rum_softc *sc = data->sc; 785 786 if (data->m != NULL) { 787 ieee80211_tx_complete(data->ni, data->m, txerr); 788 data->m = NULL; 789 data->ni = NULL; 790 } 791 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 792 sc->tx_nfree++; 793} 794 795static void 796rum_setup_tx_list(struct rum_softc *sc) 797{ 798 struct rum_tx_data *data; 799 int i; 800 801 sc->tx_nfree = 0; 802 STAILQ_INIT(&sc->tx_q); 803 STAILQ_INIT(&sc->tx_free); 804 805 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 806 data = &sc->tx_data[i]; 807 808 data->sc = sc; 809 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 810 sc->tx_nfree++; 811 } 812} 813 814static void 815rum_unsetup_tx_list(struct rum_softc *sc) 816{ 817 struct rum_tx_data *data; 818 int i; 819 820 /* make sure any subsequent use of the queues will fail */ 821 sc->tx_nfree = 0; 822 STAILQ_INIT(&sc->tx_q); 823 STAILQ_INIT(&sc->tx_free); 824 825 /* free up all node references and mbufs */ 826 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 827 data = &sc->tx_data[i]; 828 829 if (data->m != NULL) { 830 m_freem(data->m); 831 data->m = NULL; 832 } 833 if (data->ni != NULL) { 834 ieee80211_free_node(data->ni); 835 data->ni = NULL; 836 } 837 } 838} 839 840static void 841rum_beacon_miss(struct ieee80211vap *vap) 842{ 843 struct ieee80211com *ic = vap->iv_ic; 844 struct rum_softc *sc = ic->ic_softc; 845 struct rum_vap *rvp = RUM_VAP(vap); 846 int sleep; 847 848 RUM_LOCK(sc); 849 if (sc->sc_sleeping && sc->sc_sleep_end < ticks) { 850 DPRINTFN(12, "dropping 'sleeping' bit, " 851 "device must be awake now\n"); 852 853 sc->sc_sleeping = 0; 854 } 855 856 sleep = sc->sc_sleeping; 857 RUM_UNLOCK(sc); 858 859 if (!sleep) 860 rvp->bmiss(vap); 861#ifdef USB_DEBUG 862 else 863 DPRINTFN(13, "bmiss event is ignored whilst sleeping\n"); 864#endif 865} 866 867static void 868rum_sta_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m, int subtype, 869 const struct ieee80211_rx_stats *rxs, 870 int rssi, int nf) 871{ 872 struct ieee80211vap *vap = ni->ni_vap; 873 struct rum_softc *sc = vap->iv_ic->ic_softc; 874 struct rum_vap *rvp = RUM_VAP(vap); 875 876 if (vap->iv_state == IEEE80211_S_SLEEP && 877 subtype == IEEE80211_FC0_SUBTYPE_BEACON) { 878 RUM_LOCK(sc); 879 DPRINTFN(12, "beacon, mybss %d (flags %02X)\n", 880 !!(sc->last_rx_flags & RT2573_RX_MYBSS), 881 sc->last_rx_flags); 882 883 if ((sc->last_rx_flags & (RT2573_RX_MYBSS | RT2573_RX_BC)) == 884 (RT2573_RX_MYBSS | RT2573_RX_BC)) { 885 /* 886 * Put it to sleep here; in case if there is a data 887 * for us, iv_recv_mgmt() will wakeup the device via 888 * SLEEP -> RUN state transition. 889 */ 890 rum_set_power_state(sc, 1); 891 } 892 RUM_UNLOCK(sc); 893 } 894 895 rvp->recv_mgmt(ni, m, subtype, rxs, rssi, nf); 896} 897 898static int 899rum_set_power_state(struct rum_softc *sc, int sleep) 900{ 901 usb_error_t uerror; 902 903 RUM_LOCK_ASSERT(sc); 904 905 DPRINTFN(12, "moving to %s state (sleep time %u)\n", 906 sleep ? "sleep" : "awake", sc->sc_sleep_time); 907 908 uerror = rum_do_mcu_request(sc, 909 sleep ? RT2573_MCU_SLEEP : RT2573_MCU_WAKEUP); 910 if (uerror != USB_ERR_NORMAL_COMPLETION) { 911 device_printf(sc->sc_dev, 912 "%s: could not change power state: %s\n", 913 __func__, usbd_errstr(uerror)); 914 return (EIO); 915 } 916 917 sc->sc_sleeping = !!sleep; 918 sc->sc_sleep_end = sleep ? ticks + sc->sc_sleep_time : 0; 919 920 return (0); 921} 922 923static int 924rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 925{ 926 struct rum_vap *rvp = RUM_VAP(vap); 927 struct ieee80211com *ic = vap->iv_ic; 928 struct rum_softc *sc = ic->ic_softc; 929 const struct ieee80211_txparam *tp; 930 enum ieee80211_state ostate; 931 struct ieee80211_node *ni; 932 usb_error_t uerror; 933 int ret = 0; 934 935 ostate = vap->iv_state; 936 DPRINTF("%s -> %s\n", 937 ieee80211_state_name[ostate], 938 ieee80211_state_name[nstate]); 939 940 IEEE80211_UNLOCK(ic); 941 RUM_LOCK(sc); 942 usb_callout_stop(&rvp->ratectl_ch); 943 944 if (ostate == IEEE80211_S_SLEEP && vap->iv_opmode == IEEE80211_M_STA) { 945 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT); 946 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 947 948 /* 949 * Ignore any errors; 950 * any subsequent TX will wakeup it anyway 951 */ 952 (void) rum_set_power_state(sc, 0); 953 } 954 955 switch (nstate) { 956 case IEEE80211_S_INIT: 957 if (ostate == IEEE80211_S_RUN) 958 rum_abort_tsf_sync(sc); 959 960 break; 961 962 case IEEE80211_S_RUN: 963 if (ostate == IEEE80211_S_SLEEP) 964 break; /* already handled */ 965 966 ni = ieee80211_ref_node(vap->iv_bss); 967 968 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 969 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC || 970 ni->ni_chan == IEEE80211_CHAN_ANYC) { 971 ret = EINVAL; 972 goto run_fail; 973 } 974 rum_update_slot_cb(sc, NULL, 0); 975 rum_enable_mrr(sc); 976 rum_set_txpreamble(sc); 977 rum_set_basicrates(sc); 978 rum_set_maxretry(sc, vap); 979 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 980 rum_set_bssid(sc, sc->sc_bssid); 981 } 982 983 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 984 vap->iv_opmode == IEEE80211_M_IBSS) { 985 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 986 goto run_fail; 987 } 988 989 if (vap->iv_opmode != IEEE80211_M_MONITOR && 990 vap->iv_opmode != IEEE80211_M_AHDEMO) { 991 if ((ret = rum_enable_tsf_sync(sc)) != 0) 992 goto run_fail; 993 } else 994 rum_enable_tsf(sc); 995 996 /* enable automatic rate adaptation */ 997 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 998 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 999 rum_ratectl_start(sc, ni); 1000run_fail: 1001 ieee80211_free_node(ni); 1002 break; 1003 case IEEE80211_S_SLEEP: 1004 /* Implemented for STA mode only. */ 1005 if (vap->iv_opmode != IEEE80211_M_STA) 1006 break; 1007 1008 uerror = rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 1009 if (uerror != USB_ERR_NORMAL_COMPLETION) { 1010 ret = EIO; 1011 break; 1012 } 1013 1014 uerror = rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_ACKCTS_PWRMGT); 1015 if (uerror != USB_ERR_NORMAL_COMPLETION) { 1016 ret = EIO; 1017 break; 1018 } 1019 1020 ret = rum_set_power_state(sc, 1); 1021 if (ret != 0) { 1022 device_printf(sc->sc_dev, 1023 "%s: could not move to the SLEEP state: %s\n", 1024 __func__, usbd_errstr(uerror)); 1025 } 1026 break; 1027 default: 1028 break; 1029 } 1030 RUM_UNLOCK(sc); 1031 IEEE80211_LOCK(ic); 1032 return (ret == 0 ? rvp->newstate(vap, nstate, arg) : ret); 1033} 1034 1035static void 1036rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 1037{ 1038 struct rum_softc *sc = usbd_xfer_softc(xfer); 1039 struct ieee80211vap *vap; 1040 struct rum_tx_data *data; 1041 struct mbuf *m; 1042 struct usb_page_cache *pc; 1043 unsigned int len; 1044 int actlen, sumlen; 1045 1046 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 1047 1048 switch (USB_GET_STATE(xfer)) { 1049 case USB_ST_TRANSFERRED: 1050 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 1051 1052 /* free resources */ 1053 data = usbd_xfer_get_priv(xfer); 1054 rum_tx_free(data, 0); 1055 usbd_xfer_set_priv(xfer, NULL); 1056 1057 /* FALLTHROUGH */ 1058 case USB_ST_SETUP: 1059tr_setup: 1060 data = STAILQ_FIRST(&sc->tx_q); 1061 if (data) { 1062 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 1063 m = data->m; 1064 1065 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 1066 DPRINTFN(0, "data overflow, %u bytes\n", 1067 m->m_pkthdr.len); 1068 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 1069 } 1070 pc = usbd_xfer_get_frame(xfer, 0); 1071 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 1072 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 1073 m->m_pkthdr.len); 1074 1075 vap = data->ni->ni_vap; 1076 if (ieee80211_radiotap_active_vap(vap)) { 1077 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 1078 1079 tap->wt_flags = 0; 1080 tap->wt_rate = data->rate; 1081 rum_get_tsf(sc, &tap->wt_tsf); 1082 tap->wt_antenna = sc->tx_ant; 1083 1084 ieee80211_radiotap_tx(vap, m); 1085 } 1086 1087 /* align end on a 4-bytes boundary */ 1088 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 1089 if ((len % 64) == 0) 1090 len += 4; 1091 1092 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 1093 m->m_pkthdr.len, len); 1094 1095 usbd_xfer_set_frame_len(xfer, 0, len); 1096 usbd_xfer_set_priv(xfer, data); 1097 1098 usbd_transfer_submit(xfer); 1099 } 1100 rum_start(sc); 1101 break; 1102 1103 default: /* Error */ 1104 DPRINTFN(11, "transfer error, %s\n", 1105 usbd_errstr(error)); 1106 1107 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 1108 data = usbd_xfer_get_priv(xfer); 1109 if (data != NULL) { 1110 rum_tx_free(data, error); 1111 usbd_xfer_set_priv(xfer, NULL); 1112 } 1113 1114 if (error != USB_ERR_CANCELLED) { 1115 if (error == USB_ERR_TIMEOUT) 1116 device_printf(sc->sc_dev, "device timeout\n"); 1117 1118 /* 1119 * Try to clear stall first, also if other 1120 * errors occur, hence clearing stall 1121 * introduces a 50 ms delay: 1122 */ 1123 usbd_xfer_set_stall(xfer); 1124 goto tr_setup; 1125 } 1126 break; 1127 } 1128} 1129 1130static void 1131rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 1132{ 1133 struct rum_softc *sc = usbd_xfer_softc(xfer); 1134 struct ieee80211com *ic = &sc->sc_ic; 1135 struct ieee80211_frame_min *wh; 1136 struct ieee80211_node *ni; 1137 struct mbuf *m = NULL; 1138 struct usb_page_cache *pc; 1139 uint32_t flags; 1140 uint8_t rssi = 0; 1141 int len; 1142 1143 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 1144 1145 switch (USB_GET_STATE(xfer)) { 1146 case USB_ST_TRANSFERRED: 1147 1148 DPRINTFN(15, "rx done, actlen=%d\n", len); 1149 1150 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 1151 DPRINTF("%s: xfer too short %d\n", 1152 device_get_nameunit(sc->sc_dev), len); 1153 counter_u64_add(ic->ic_ierrors, 1); 1154 goto tr_setup; 1155 } 1156 1157 len -= RT2573_RX_DESC_SIZE; 1158 pc = usbd_xfer_get_frame(xfer, 0); 1159 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 1160 1161 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 1162 flags = le32toh(sc->sc_rx_desc.flags); 1163 sc->last_rx_flags = flags; 1164 if (flags & RT2573_RX_CRC_ERROR) { 1165 /* 1166 * This should not happen since we did not 1167 * request to receive those frames when we 1168 * filled RUM_TXRX_CSR2: 1169 */ 1170 DPRINTFN(5, "PHY or CRC error\n"); 1171 counter_u64_add(ic->ic_ierrors, 1); 1172 goto tr_setup; 1173 } 1174 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) { 1175 switch (flags & RT2573_RX_DEC_MASK) { 1176 case RT2573_RX_IV_ERROR: 1177 DPRINTFN(5, "IV/EIV error\n"); 1178 break; 1179 case RT2573_RX_MIC_ERROR: 1180 DPRINTFN(5, "MIC error\n"); 1181 break; 1182 case RT2573_RX_KEY_ERROR: 1183 DPRINTFN(5, "Key error\n"); 1184 break; 1185 } 1186 counter_u64_add(ic->ic_ierrors, 1); 1187 goto tr_setup; 1188 } 1189 1190 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1191 if (m == NULL) { 1192 DPRINTF("could not allocate mbuf\n"); 1193 counter_u64_add(ic->ic_ierrors, 1); 1194 goto tr_setup; 1195 } 1196 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 1197 mtod(m, uint8_t *), len); 1198 1199 wh = mtod(m, struct ieee80211_frame_min *); 1200 1201 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1202 (flags & RT2573_RX_CIP_MASK) != 1203 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) { 1204 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 1205 m->m_flags |= M_WEP; 1206 } 1207 1208 /* finalize mbuf */ 1209 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 1210 1211 if (ieee80211_radiotap_active(ic)) { 1212 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 1213 1214 tap->wr_flags = 0; 1215 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 1216 (flags & RT2573_RX_OFDM) ? 1217 IEEE80211_T_OFDM : IEEE80211_T_CCK); 1218 rum_get_tsf(sc, &tap->wr_tsf); 1219 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 1220 tap->wr_antnoise = RT2573_NOISE_FLOOR; 1221 tap->wr_antenna = sc->rx_ant; 1222 } 1223 /* FALLTHROUGH */ 1224 case USB_ST_SETUP: 1225tr_setup: 1226 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1227 usbd_transfer_submit(xfer); 1228 1229 /* 1230 * At the end of a USB callback it is always safe to unlock 1231 * the private mutex of a device! That is why we do the 1232 * "ieee80211_input" here, and not some lines up! 1233 */ 1234 RUM_UNLOCK(sc); 1235 if (m) { 1236 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1237 ni = ieee80211_find_rxnode(ic, wh); 1238 else 1239 ni = NULL; 1240 1241 if (ni != NULL) { 1242 (void) ieee80211_input(ni, m, rssi, 1243 RT2573_NOISE_FLOOR); 1244 ieee80211_free_node(ni); 1245 } else 1246 (void) ieee80211_input_all(ic, m, rssi, 1247 RT2573_NOISE_FLOOR); 1248 } 1249 RUM_LOCK(sc); 1250 rum_start(sc); 1251 return; 1252 1253 default: /* Error */ 1254 if (error != USB_ERR_CANCELLED) { 1255 /* try to clear stall first */ 1256 usbd_xfer_set_stall(xfer); 1257 goto tr_setup; 1258 } 1259 return; 1260 } 1261} 1262 1263static uint8_t 1264rum_plcp_signal(int rate) 1265{ 1266 switch (rate) { 1267 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1268 case 12: return 0xb; 1269 case 18: return 0xf; 1270 case 24: return 0xa; 1271 case 36: return 0xe; 1272 case 48: return 0x9; 1273 case 72: return 0xd; 1274 case 96: return 0x8; 1275 case 108: return 0xc; 1276 1277 /* CCK rates (NB: not IEEE std, device-specific) */ 1278 case 2: return 0x0; 1279 case 4: return 0x1; 1280 case 11: return 0x2; 1281 case 22: return 0x3; 1282 } 1283 return 0xff; /* XXX unsupported/unknown rate */ 1284} 1285 1286/* 1287 * Map net80211 cipher to RT2573 security mode. 1288 */ 1289static uint8_t 1290rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen) 1291{ 1292 switch (cipher) { 1293 case IEEE80211_CIPHER_WEP: 1294 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104); 1295 case IEEE80211_CIPHER_TKIP: 1296 return RT2573_MODE_TKIP; 1297 case IEEE80211_CIPHER_AES_CCM: 1298 return RT2573_MODE_AES_CCMP; 1299 default: 1300 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1301 return 0; 1302 } 1303} 1304 1305static void 1306rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1307 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid, 1308 int hdrlen, int len, int rate) 1309{ 1310 struct ieee80211com *ic = &sc->sc_ic; 1311 struct wmeParams *wmep = &sc->wme_params[qid]; 1312 uint16_t plcp_length; 1313 int remainder; 1314 1315 flags |= RT2573_TX_VALID; 1316 flags |= len << 16; 1317 1318 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1319 const struct ieee80211_cipher *cip = k->wk_cipher; 1320 1321 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen; 1322 1323 desc->eiv = 0; /* for WEP */ 1324 cip->ic_setiv(k, (uint8_t *)&desc->iv); 1325 } 1326 1327 /* setup PLCP fields */ 1328 desc->plcp_signal = rum_plcp_signal(rate); 1329 desc->plcp_service = 4; 1330 1331 len += IEEE80211_CRC_LEN; 1332 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1333 flags |= RT2573_TX_OFDM; 1334 1335 plcp_length = len & 0xfff; 1336 desc->plcp_length_hi = plcp_length >> 6; 1337 desc->plcp_length_lo = plcp_length & 0x3f; 1338 } else { 1339 if (rate == 0) 1340 rate = 2; /* avoid division by zero */ 1341 plcp_length = howmany(16 * len, rate); 1342 if (rate == 22) { 1343 remainder = (16 * len) % 22; 1344 if (remainder != 0 && remainder < 7) 1345 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1346 } 1347 desc->plcp_length_hi = plcp_length >> 8; 1348 desc->plcp_length_lo = plcp_length & 0xff; 1349 1350 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1351 desc->plcp_signal |= 0x08; 1352 } 1353 1354 desc->flags = htole32(flags); 1355 desc->hdrlen = hdrlen; 1356 desc->xflags = xflags; 1357 1358 desc->wme = htole16(RT2573_QID(qid) | 1359 RT2573_AIFSN(wmep->wmep_aifsn) | 1360 RT2573_LOGCWMIN(wmep->wmep_logcwmin) | 1361 RT2573_LOGCWMAX(wmep->wmep_logcwmax)); 1362} 1363 1364static int 1365rum_sendprot(struct rum_softc *sc, 1366 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1367{ 1368 struct ieee80211com *ic = ni->ni_ic; 1369 const struct ieee80211_frame *wh; 1370 struct rum_tx_data *data; 1371 struct mbuf *mprot; 1372 int protrate, pktlen, flags, isshort; 1373 uint16_t dur; 1374 1375 RUM_LOCK_ASSERT(sc); 1376 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1377 ("protection %d", prot)); 1378 1379 wh = mtod(m, const struct ieee80211_frame *); 1380 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1381 1382 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1383 1384 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1385 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1386 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1387 flags = 0; 1388 if (prot == IEEE80211_PROT_RTSCTS) { 1389 /* NB: CTS is the same size as an ACK */ 1390 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1391 flags |= RT2573_TX_NEED_ACK; 1392 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1393 } else { 1394 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1395 } 1396 if (mprot == NULL) { 1397 /* XXX stat + msg */ 1398 return (ENOBUFS); 1399 } 1400 data = STAILQ_FIRST(&sc->tx_free); 1401 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1402 sc->tx_nfree--; 1403 1404 data->m = mprot; 1405 data->ni = ieee80211_ref_node(ni); 1406 data->rate = protrate; 1407 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0, 1408 mprot->m_pkthdr.len, protrate); 1409 1410 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1411 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1412 1413 return 0; 1414} 1415 1416static uint32_t 1417rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni, 1418 const struct ieee80211_key *k) 1419{ 1420 struct ieee80211vap *vap = ni->ni_vap; 1421 u_int cipher; 1422 uint32_t flags = 0; 1423 uint8_t mode, pos; 1424 1425 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1426 cipher = k->wk_cipher->ic_cipher; 1427 pos = k->wk_keyix; 1428 mode = rum_crypto_mode(sc, cipher, k->wk_keylen); 1429 if (mode == 0) 1430 return 0; 1431 1432 flags |= RT2573_TX_CIP_MODE(mode); 1433 1434 /* Do not trust GROUP flag */ 1435 if (!(k >= &vap->iv_nw_keys[0] && 1436 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) 1437 flags |= RT2573_TX_KEY_PAIR; 1438 else 1439 pos += 0 * RT2573_SKEY_MAX; /* vap id */ 1440 1441 flags |= RT2573_TX_KEY_ID(pos); 1442 1443 if (cipher == IEEE80211_CIPHER_TKIP) 1444 flags |= RT2573_TX_TKIPMIC; 1445 } 1446 1447 return flags; 1448} 1449 1450static int 1451rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1452{ 1453 struct ieee80211vap *vap = ni->ni_vap; 1454 struct ieee80211com *ic = &sc->sc_ic; 1455 struct rum_tx_data *data; 1456 struct ieee80211_frame *wh; 1457 const struct ieee80211_txparam *tp; 1458 struct ieee80211_key *k = NULL; 1459 uint32_t flags = 0; 1460 uint16_t dur; 1461 uint8_t ac, type, xflags = 0; 1462 int hdrlen; 1463 1464 RUM_LOCK_ASSERT(sc); 1465 1466 data = STAILQ_FIRST(&sc->tx_free); 1467 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1468 sc->tx_nfree--; 1469 1470 wh = mtod(m0, struct ieee80211_frame *); 1471 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1472 hdrlen = ieee80211_anyhdrsize(wh); 1473 ac = M_WME_GETAC(m0); 1474 1475 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1476 k = ieee80211_crypto_get_txkey(ni, m0); 1477 if (k == NULL) 1478 return (ENOENT); 1479 1480 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1481 !k->wk_cipher->ic_encap(k, m0)) 1482 return (ENOBUFS); 1483 1484 wh = mtod(m0, struct ieee80211_frame *); 1485 } 1486 1487 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1488 1489 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1490 flags |= RT2573_TX_NEED_ACK; 1491 1492 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1493 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1494 USETW(wh->i_dur, dur); 1495 1496 /* tell hardware to add timestamp for probe responses */ 1497 if (type == IEEE80211_FC0_TYPE_MGT && 1498 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1499 IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1500 flags |= RT2573_TX_TIMESTAMP; 1501 } 1502 1503 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1504 xflags |= RT2573_TX_HWSEQ; 1505 1506 if (k != NULL) 1507 flags |= rum_tx_crypto_flags(sc, ni, k); 1508 1509 data->m = m0; 1510 data->ni = ni; 1511 data->rate = tp->mgmtrate; 1512 1513 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1514 m0->m_pkthdr.len, tp->mgmtrate); 1515 1516 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1517 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1518 1519 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1520 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1521 1522 return (0); 1523} 1524 1525static int 1526rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1527 const struct ieee80211_bpf_params *params) 1528{ 1529 struct ieee80211com *ic = ni->ni_ic; 1530 struct ieee80211_frame *wh; 1531 struct rum_tx_data *data; 1532 uint32_t flags; 1533 uint8_t ac, type, xflags = 0; 1534 int rate, error; 1535 1536 RUM_LOCK_ASSERT(sc); 1537 1538 wh = mtod(m0, struct ieee80211_frame *); 1539 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1540 1541 ac = params->ibp_pri & 3; 1542 1543 rate = params->ibp_rate0; 1544 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1545 return (EINVAL); 1546 1547 flags = 0; 1548 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1549 flags |= RT2573_TX_NEED_ACK; 1550 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1551 error = rum_sendprot(sc, m0, ni, 1552 params->ibp_flags & IEEE80211_BPF_RTS ? 1553 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1554 rate); 1555 if (error || sc->tx_nfree == 0) 1556 return (ENOBUFS); 1557 1558 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1559 } 1560 1561 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1562 xflags |= RT2573_TX_HWSEQ; 1563 1564 data = STAILQ_FIRST(&sc->tx_free); 1565 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1566 sc->tx_nfree--; 1567 1568 data->m = m0; 1569 data->ni = ni; 1570 data->rate = rate; 1571 1572 /* XXX need to setup descriptor ourself */ 1573 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0, 1574 m0->m_pkthdr.len, rate); 1575 1576 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1577 m0->m_pkthdr.len, rate); 1578 1579 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1580 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1581 1582 return 0; 1583} 1584 1585static int 1586rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1587{ 1588 struct ieee80211vap *vap = ni->ni_vap; 1589 struct ieee80211com *ic = &sc->sc_ic; 1590 struct rum_tx_data *data; 1591 struct ieee80211_frame *wh; 1592 const struct ieee80211_txparam *tp; 1593 struct ieee80211_key *k = NULL; 1594 uint32_t flags = 0; 1595 uint16_t dur; 1596 uint8_t ac, type, qos, xflags = 0; 1597 int error, hdrlen, rate; 1598 1599 RUM_LOCK_ASSERT(sc); 1600 1601 wh = mtod(m0, struct ieee80211_frame *); 1602 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1603 hdrlen = ieee80211_anyhdrsize(wh); 1604 1605 if (IEEE80211_QOS_HAS_SEQ(wh)) 1606 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 1607 else 1608 qos = 0; 1609 ac = M_WME_GETAC(m0); 1610 1611 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1612 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1613 rate = tp->mcastrate; 1614 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1615 rate = tp->ucastrate; 1616 else 1617 rate = ni->ni_txrate; 1618 1619 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1620 k = ieee80211_crypto_get_txkey(ni, m0); 1621 if (k == NULL) { 1622 m_freem(m0); 1623 return (ENOENT); 1624 } 1625 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1626 !k->wk_cipher->ic_encap(k, m0)) { 1627 m_freem(m0); 1628 return (ENOBUFS); 1629 } 1630 1631 /* packet header may have moved, reset our local pointer */ 1632 wh = mtod(m0, struct ieee80211_frame *); 1633 } 1634 1635 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1636 xflags |= RT2573_TX_HWSEQ; 1637 1638 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1639 int prot = IEEE80211_PROT_NONE; 1640 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1641 prot = IEEE80211_PROT_RTSCTS; 1642 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1643 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1644 prot = ic->ic_protmode; 1645 if (prot != IEEE80211_PROT_NONE) { 1646 error = rum_sendprot(sc, m0, ni, prot, rate); 1647 if (error || sc->tx_nfree == 0) { 1648 m_freem(m0); 1649 return ENOBUFS; 1650 } 1651 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1652 } 1653 } 1654 1655 if (k != NULL) 1656 flags |= rum_tx_crypto_flags(sc, ni, k); 1657 1658 data = STAILQ_FIRST(&sc->tx_free); 1659 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1660 sc->tx_nfree--; 1661 1662 data->m = m0; 1663 data->ni = ni; 1664 data->rate = rate; 1665 1666 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1667 /* Unicast frame, check if an ACK is expected. */ 1668 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 1669 IEEE80211_QOS_ACKPOLICY_NOACK) 1670 flags |= RT2573_TX_NEED_ACK; 1671 1672 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1673 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1674 USETW(wh->i_dur, dur); 1675 } 1676 1677 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1678 m0->m_pkthdr.len, rate); 1679 1680 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1681 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1682 1683 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1684 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1685 1686 return 0; 1687} 1688 1689static int 1690rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1691{ 1692 struct rum_softc *sc = ic->ic_softc; 1693 int error; 1694 1695 RUM_LOCK(sc); 1696 if (!sc->sc_running) { 1697 RUM_UNLOCK(sc); 1698 return (ENXIO); 1699 } 1700 error = mbufq_enqueue(&sc->sc_snd, m); 1701 if (error) { 1702 RUM_UNLOCK(sc); 1703 return (error); 1704 } 1705 rum_start(sc); 1706 RUM_UNLOCK(sc); 1707 1708 return (0); 1709} 1710 1711static void 1712rum_start(struct rum_softc *sc) 1713{ 1714 struct ieee80211_node *ni; 1715 struct mbuf *m; 1716 1717 RUM_LOCK_ASSERT(sc); 1718 1719 if (!sc->sc_running) 1720 return; 1721 1722 while (sc->tx_nfree >= RUM_TX_MINFREE && 1723 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1724 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1725 if (rum_tx_data(sc, m, ni) != 0) { 1726 if_inc_counter(ni->ni_vap->iv_ifp, 1727 IFCOUNTER_OERRORS, 1); 1728 ieee80211_free_node(ni); 1729 break; 1730 } 1731 } 1732} 1733 1734static void 1735rum_parent(struct ieee80211com *ic) 1736{ 1737 struct rum_softc *sc = ic->ic_softc; 1738 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1739 1740 RUM_LOCK(sc); 1741 if (sc->sc_detached) { 1742 RUM_UNLOCK(sc); 1743 return; 1744 } 1745 RUM_UNLOCK(sc); 1746 1747 if (ic->ic_nrunning > 0) { 1748 if (rum_init(sc) == 0) 1749 ieee80211_start_all(ic); 1750 else 1751 ieee80211_stop(vap); 1752 } else 1753 rum_stop(sc); 1754} 1755 1756static void 1757rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1758{ 1759 struct usb_device_request req; 1760 usb_error_t error; 1761 1762 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1763 req.bRequest = RT2573_READ_EEPROM; 1764 USETW(req.wValue, 0); 1765 USETW(req.wIndex, addr); 1766 USETW(req.wLength, len); 1767 1768 error = rum_do_request(sc, &req, buf); 1769 if (error != 0) { 1770 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1771 usbd_errstr(error)); 1772 } 1773} 1774 1775static uint32_t 1776rum_read(struct rum_softc *sc, uint16_t reg) 1777{ 1778 uint32_t val; 1779 1780 rum_read_multi(sc, reg, &val, sizeof val); 1781 1782 return le32toh(val); 1783} 1784 1785static void 1786rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1787{ 1788 struct usb_device_request req; 1789 usb_error_t error; 1790 1791 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1792 req.bRequest = RT2573_READ_MULTI_MAC; 1793 USETW(req.wValue, 0); 1794 USETW(req.wIndex, reg); 1795 USETW(req.wLength, len); 1796 1797 error = rum_do_request(sc, &req, buf); 1798 if (error != 0) { 1799 device_printf(sc->sc_dev, 1800 "could not multi read MAC register: %s\n", 1801 usbd_errstr(error)); 1802 } 1803} 1804 1805static usb_error_t 1806rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1807{ 1808 uint32_t tmp = htole32(val); 1809 1810 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1811} 1812 1813static usb_error_t 1814rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1815{ 1816 struct usb_device_request req; 1817 usb_error_t error; 1818 size_t offset; 1819 1820 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1821 req.bRequest = RT2573_WRITE_MULTI_MAC; 1822 USETW(req.wValue, 0); 1823 1824 /* write at most 64 bytes at a time */ 1825 for (offset = 0; offset < len; offset += 64) { 1826 USETW(req.wIndex, reg + offset); 1827 USETW(req.wLength, MIN(len - offset, 64)); 1828 1829 error = rum_do_request(sc, &req, (char *)buf + offset); 1830 if (error != 0) { 1831 device_printf(sc->sc_dev, 1832 "could not multi write MAC register: %s\n", 1833 usbd_errstr(error)); 1834 return (error); 1835 } 1836 } 1837 1838 return (USB_ERR_NORMAL_COMPLETION); 1839} 1840 1841static usb_error_t 1842rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1843{ 1844 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1845} 1846 1847static usb_error_t 1848rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1849{ 1850 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1851} 1852 1853static usb_error_t 1854rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1855{ 1856 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1857} 1858 1859static int 1860rum_bbp_busy(struct rum_softc *sc) 1861{ 1862 int ntries; 1863 1864 for (ntries = 0; ntries < 100; ntries++) { 1865 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1866 break; 1867 if (rum_pause(sc, hz / 100)) 1868 break; 1869 } 1870 if (ntries == 100) 1871 return (ETIMEDOUT); 1872 1873 return (0); 1874} 1875 1876static void 1877rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1878{ 1879 uint32_t tmp; 1880 1881 DPRINTFN(2, "reg=0x%08x\n", reg); 1882 1883 if (rum_bbp_busy(sc) != 0) { 1884 device_printf(sc->sc_dev, "could not write to BBP\n"); 1885 return; 1886 } 1887 1888 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1889 rum_write(sc, RT2573_PHY_CSR3, tmp); 1890} 1891 1892static uint8_t 1893rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1894{ 1895 uint32_t val; 1896 int ntries; 1897 1898 DPRINTFN(2, "reg=0x%08x\n", reg); 1899 1900 if (rum_bbp_busy(sc) != 0) { 1901 device_printf(sc->sc_dev, "could not read BBP\n"); 1902 return 0; 1903 } 1904 1905 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1906 rum_write(sc, RT2573_PHY_CSR3, val); 1907 1908 for (ntries = 0; ntries < 100; ntries++) { 1909 val = rum_read(sc, RT2573_PHY_CSR3); 1910 if (!(val & RT2573_BBP_BUSY)) 1911 return val & 0xff; 1912 if (rum_pause(sc, hz / 100)) 1913 break; 1914 } 1915 1916 device_printf(sc->sc_dev, "could not read BBP\n"); 1917 return 0; 1918} 1919 1920static void 1921rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1922{ 1923 uint32_t tmp; 1924 int ntries; 1925 1926 for (ntries = 0; ntries < 100; ntries++) { 1927 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1928 break; 1929 if (rum_pause(sc, hz / 100)) 1930 break; 1931 } 1932 if (ntries == 100) { 1933 device_printf(sc->sc_dev, "could not write to RF\n"); 1934 return; 1935 } 1936 1937 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1938 (reg & 3); 1939 rum_write(sc, RT2573_PHY_CSR4, tmp); 1940 1941 /* remember last written value in sc */ 1942 sc->rf_regs[reg] = val; 1943 1944 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1945} 1946 1947static void 1948rum_select_antenna(struct rum_softc *sc) 1949{ 1950 uint8_t bbp4, bbp77; 1951 uint32_t tmp; 1952 1953 bbp4 = rum_bbp_read(sc, 4); 1954 bbp77 = rum_bbp_read(sc, 77); 1955 1956 /* TBD */ 1957 1958 /* make sure Rx is disabled before switching antenna */ 1959 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1960 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1961 1962 rum_bbp_write(sc, 4, bbp4); 1963 rum_bbp_write(sc, 77, bbp77); 1964 1965 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1966} 1967 1968/* 1969 * Enable multi-rate retries for frames sent at OFDM rates. 1970 * In 802.11b/g mode, allow fallback to CCK rates. 1971 */ 1972static void 1973rum_enable_mrr(struct rum_softc *sc) 1974{ 1975 struct ieee80211com *ic = &sc->sc_ic; 1976 1977 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1978 rum_setbits(sc, RT2573_TXRX_CSR4, 1979 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1980 } else { 1981 rum_modbits(sc, RT2573_TXRX_CSR4, 1982 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1983 } 1984} 1985 1986static void 1987rum_set_txpreamble(struct rum_softc *sc) 1988{ 1989 struct ieee80211com *ic = &sc->sc_ic; 1990 1991 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1992 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1993 else 1994 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1995} 1996 1997static void 1998rum_set_basicrates(struct rum_softc *sc) 1999{ 2000 struct ieee80211com *ic = &sc->sc_ic; 2001 2002 /* update basic rate set */ 2003 if (ic->ic_curmode == IEEE80211_MODE_11B) { 2004 /* 11b basic rates: 1, 2Mbps */ 2005 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 2006 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 2007 /* 11a basic rates: 6, 12, 24Mbps */ 2008 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 2009 } else { 2010 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 2011 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 2012 } 2013} 2014 2015/* 2016 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 2017 * driver. 2018 */ 2019static void 2020rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 2021{ 2022 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 2023 2024 /* update all BBP registers that depend on the band */ 2025 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 2026 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 2027 if (IEEE80211_IS_CHAN_5GHZ(c)) { 2028 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 2029 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 2030 } 2031 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 2032 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 2033 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 2034 } 2035 2036 sc->bbp17 = bbp17; 2037 rum_bbp_write(sc, 17, bbp17); 2038 rum_bbp_write(sc, 96, bbp96); 2039 rum_bbp_write(sc, 104, bbp104); 2040 2041 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 2042 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 2043 rum_bbp_write(sc, 75, 0x80); 2044 rum_bbp_write(sc, 86, 0x80); 2045 rum_bbp_write(sc, 88, 0x80); 2046 } 2047 2048 rum_bbp_write(sc, 35, bbp35); 2049 rum_bbp_write(sc, 97, bbp97); 2050 rum_bbp_write(sc, 98, bbp98); 2051 2052 if (IEEE80211_IS_CHAN_2GHZ(c)) { 2053 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 2054 RT2573_PA_PE_5GHZ); 2055 } else { 2056 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 2057 RT2573_PA_PE_2GHZ); 2058 } 2059} 2060 2061static void 2062rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 2063{ 2064 struct ieee80211com *ic = &sc->sc_ic; 2065 const struct rfprog *rfprog; 2066 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 2067 int8_t power; 2068 int i, chan; 2069 2070 chan = ieee80211_chan2ieee(ic, c); 2071 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 2072 return; 2073 2074 /* select the appropriate RF settings based on what EEPROM says */ 2075 rfprog = (sc->rf_rev == RT2573_RF_5225 || 2076 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 2077 2078 /* find the settings for this channel (we know it exists) */ 2079 for (i = 0; rfprog[i].chan != chan; i++); 2080 2081 power = sc->txpow[i]; 2082 if (power < 0) { 2083 bbp94 += power; 2084 power = 0; 2085 } else if (power > 31) { 2086 bbp94 += power - 31; 2087 power = 31; 2088 } 2089 2090 /* 2091 * If we are switching from the 2GHz band to the 5GHz band or 2092 * vice-versa, BBP registers need to be reprogrammed. 2093 */ 2094 if (c->ic_flags != ic->ic_curchan->ic_flags) { 2095 rum_select_band(sc, c); 2096 rum_select_antenna(sc); 2097 } 2098 ic->ic_curchan = c; 2099 2100 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2101 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2102 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 2103 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2104 2105 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2106 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2107 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 2108 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2109 2110 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 2111 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 2112 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 2113 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 2114 2115 rum_pause(sc, hz / 100); 2116 2117 /* enable smart mode for MIMO-capable RFs */ 2118 bbp3 = rum_bbp_read(sc, 3); 2119 2120 bbp3 &= ~RT2573_SMART_MODE; 2121 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 2122 bbp3 |= RT2573_SMART_MODE; 2123 2124 rum_bbp_write(sc, 3, bbp3); 2125 2126 if (bbp94 != RT2573_BBPR94_DEFAULT) 2127 rum_bbp_write(sc, 94, bbp94); 2128 2129 /* give the chip some extra time to do the switchover */ 2130 rum_pause(sc, hz / 100); 2131} 2132 2133static void 2134rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap) 2135{ 2136 const struct ieee80211_txparam *tp; 2137 struct ieee80211_node *ni = vap->iv_bss; 2138 struct rum_vap *rvp = RUM_VAP(vap); 2139 2140 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 2141 rvp->maxretry = tp->maxretry < 0xf ? tp->maxretry : 0xf; 2142 2143 rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) | 2144 RT2573_LONG_RETRY(rvp->maxretry), 2145 RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK); 2146} 2147 2148/* 2149 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 2150 * and HostAP operating modes. 2151 */ 2152static int 2153rum_enable_tsf_sync(struct rum_softc *sc) 2154{ 2155 struct ieee80211com *ic = &sc->sc_ic; 2156 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2157 uint32_t tmp; 2158 uint16_t bintval; 2159 2160 if (vap->iv_opmode != IEEE80211_M_STA) { 2161 /* 2162 * Change default 16ms TBTT adjustment to 8ms. 2163 * Must be done before enabling beacon generation. 2164 */ 2165 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 2166 return EIO; 2167 } 2168 2169 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 2170 2171 /* set beacon interval (in 1/16ms unit) */ 2172 bintval = vap->iv_bss->ni_intval; 2173 tmp |= bintval * 16; 2174 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 2175 2176 switch (vap->iv_opmode) { 2177 case IEEE80211_M_STA: 2178 /* 2179 * Local TSF is always updated with remote TSF on beacon 2180 * reception. 2181 */ 2182 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 2183 break; 2184 case IEEE80211_M_IBSS: 2185 /* 2186 * Local TSF is updated with remote TSF on beacon reception 2187 * only if the remote TSF is greater than local TSF. 2188 */ 2189 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 2190 tmp |= RT2573_BCN_TX_EN; 2191 break; 2192 case IEEE80211_M_HOSTAP: 2193 /* SYNC with nobody */ 2194 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 2195 tmp |= RT2573_BCN_TX_EN; 2196 break; 2197 default: 2198 device_printf(sc->sc_dev, 2199 "Enabling TSF failed. undefined opmode %d\n", 2200 vap->iv_opmode); 2201 return EINVAL; 2202 } 2203 2204 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 2205 return EIO; 2206 2207 /* refresh current sleep time */ 2208 return (rum_set_sleep_time(sc, bintval)); 2209} 2210 2211static void 2212rum_enable_tsf(struct rum_softc *sc) 2213{ 2214 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 2215 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 2216} 2217 2218static void 2219rum_abort_tsf_sync(struct rum_softc *sc) 2220{ 2221 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 2222} 2223 2224static void 2225rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 2226{ 2227 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 2228} 2229 2230static void 2231rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id) 2232{ 2233 struct ieee80211com *ic = &sc->sc_ic; 2234 uint8_t slottime; 2235 2236 slottime = IEEE80211_GET_SLOTTIME(ic); 2237 2238 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 2239 2240 DPRINTF("setting slot time to %uus\n", slottime); 2241} 2242 2243static void 2244rum_update_slot(struct ieee80211com *ic) 2245{ 2246 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb); 2247} 2248 2249static int 2250rum_wme_update(struct ieee80211com *ic) 2251{ 2252 const struct wmeParams *chanp = 2253 ic->ic_wme.wme_chanParams.cap_wmeParams; 2254 struct rum_softc *sc = ic->ic_softc; 2255 int error = 0; 2256 2257 RUM_LOCK(sc); 2258 error = rum_write(sc, RT2573_AIFSN_CSR, 2259 chanp[WME_AC_VO].wmep_aifsn << 12 | 2260 chanp[WME_AC_VI].wmep_aifsn << 8 | 2261 chanp[WME_AC_BK].wmep_aifsn << 4 | 2262 chanp[WME_AC_BE].wmep_aifsn); 2263 if (error) 2264 goto print_err; 2265 error = rum_write(sc, RT2573_CWMIN_CSR, 2266 chanp[WME_AC_VO].wmep_logcwmin << 12 | 2267 chanp[WME_AC_VI].wmep_logcwmin << 8 | 2268 chanp[WME_AC_BK].wmep_logcwmin << 4 | 2269 chanp[WME_AC_BE].wmep_logcwmin); 2270 if (error) 2271 goto print_err; 2272 error = rum_write(sc, RT2573_CWMAX_CSR, 2273 chanp[WME_AC_VO].wmep_logcwmax << 12 | 2274 chanp[WME_AC_VI].wmep_logcwmax << 8 | 2275 chanp[WME_AC_BK].wmep_logcwmax << 4 | 2276 chanp[WME_AC_BE].wmep_logcwmax); 2277 if (error) 2278 goto print_err; 2279 error = rum_write(sc, RT2573_TXOP01_CSR, 2280 chanp[WME_AC_BK].wmep_txopLimit << 16 | 2281 chanp[WME_AC_BE].wmep_txopLimit); 2282 if (error) 2283 goto print_err; 2284 error = rum_write(sc, RT2573_TXOP23_CSR, 2285 chanp[WME_AC_VO].wmep_txopLimit << 16 | 2286 chanp[WME_AC_VI].wmep_txopLimit); 2287 if (error) 2288 goto print_err; 2289 2290 memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC); 2291 2292print_err: 2293 RUM_UNLOCK(sc); 2294 if (error != 0) { 2295 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n", 2296 __func__, error); 2297 } 2298 2299 return (error); 2300} 2301 2302static void 2303rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 2304{ 2305 2306 rum_write(sc, RT2573_MAC_CSR4, 2307 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 2308 rum_write(sc, RT2573_MAC_CSR5, 2309 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 2310} 2311 2312static void 2313rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 2314{ 2315 2316 rum_write(sc, RT2573_MAC_CSR2, 2317 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 2318 rum_write(sc, RT2573_MAC_CSR3, 2319 addr[4] | addr[5] << 8 | 0xff << 16); 2320} 2321 2322static void 2323rum_setpromisc(struct rum_softc *sc) 2324{ 2325 struct ieee80211com *ic = &sc->sc_ic; 2326 2327 if (ic->ic_promisc == 0) 2328 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2329 else 2330 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2331 2332 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 2333 "entering" : "leaving"); 2334} 2335 2336static void 2337rum_update_promisc(struct ieee80211com *ic) 2338{ 2339 struct rum_softc *sc = ic->ic_softc; 2340 2341 RUM_LOCK(sc); 2342 if (sc->sc_running) 2343 rum_setpromisc(sc); 2344 RUM_UNLOCK(sc); 2345} 2346 2347static void 2348rum_update_mcast(struct ieee80211com *ic) 2349{ 2350 /* Ignore. */ 2351} 2352 2353static const char * 2354rum_get_rf(int rev) 2355{ 2356 switch (rev) { 2357 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 2358 case RT2573_RF_2528: return "RT2528"; 2359 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 2360 case RT2573_RF_5226: return "RT5226"; 2361 default: return "unknown"; 2362 } 2363} 2364 2365static void 2366rum_read_eeprom(struct rum_softc *sc) 2367{ 2368 uint16_t val; 2369#ifdef RUM_DEBUG 2370 int i; 2371#endif 2372 2373 /* read MAC address */ 2374 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 2375 2376 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 2377 val = le16toh(val); 2378 sc->rf_rev = (val >> 11) & 0x1f; 2379 sc->hw_radio = (val >> 10) & 0x1; 2380 sc->rx_ant = (val >> 4) & 0x3; 2381 sc->tx_ant = (val >> 2) & 0x3; 2382 sc->nb_ant = val & 0x3; 2383 2384 DPRINTF("RF revision=%d\n", sc->rf_rev); 2385 2386 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 2387 val = le16toh(val); 2388 sc->ext_5ghz_lna = (val >> 6) & 0x1; 2389 sc->ext_2ghz_lna = (val >> 4) & 0x1; 2390 2391 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 2392 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 2393 2394 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 2395 val = le16toh(val); 2396 if ((val & 0xff) != 0xff) 2397 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 2398 2399 /* Only [-10, 10] is valid */ 2400 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 2401 sc->rssi_2ghz_corr = 0; 2402 2403 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 2404 val = le16toh(val); 2405 if ((val & 0xff) != 0xff) 2406 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 2407 2408 /* Only [-10, 10] is valid */ 2409 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 2410 sc->rssi_5ghz_corr = 0; 2411 2412 if (sc->ext_2ghz_lna) 2413 sc->rssi_2ghz_corr -= 14; 2414 if (sc->ext_5ghz_lna) 2415 sc->rssi_5ghz_corr -= 14; 2416 2417 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2418 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2419 2420 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2421 val = le16toh(val); 2422 if ((val & 0xff) != 0xff) 2423 sc->rffreq = val & 0xff; 2424 2425 DPRINTF("RF freq=%d\n", sc->rffreq); 2426 2427 /* read Tx power for all a/b/g channels */ 2428 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2429 /* XXX default Tx power for 802.11a channels */ 2430 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2431#ifdef RUM_DEBUG 2432 for (i = 0; i < 14; i++) 2433 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2434#endif 2435 2436 /* read default values for BBP registers */ 2437 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2438#ifdef RUM_DEBUG 2439 for (i = 0; i < 14; i++) { 2440 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2441 continue; 2442 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2443 sc->bbp_prom[i].val); 2444 } 2445#endif 2446} 2447 2448static int 2449rum_bbp_wakeup(struct rum_softc *sc) 2450{ 2451 unsigned int ntries; 2452 2453 for (ntries = 0; ntries < 100; ntries++) { 2454 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2455 break; 2456 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2457 if (rum_pause(sc, hz / 100)) 2458 break; 2459 } 2460 if (ntries == 100) { 2461 device_printf(sc->sc_dev, 2462 "timeout waiting for BBP/RF to wakeup\n"); 2463 return (ETIMEDOUT); 2464 } 2465 2466 return (0); 2467} 2468 2469static int 2470rum_bbp_init(struct rum_softc *sc) 2471{ 2472 int i, ntries; 2473 2474 /* wait for BBP to be ready */ 2475 for (ntries = 0; ntries < 100; ntries++) { 2476 const uint8_t val = rum_bbp_read(sc, 0); 2477 if (val != 0 && val != 0xff) 2478 break; 2479 if (rum_pause(sc, hz / 100)) 2480 break; 2481 } 2482 if (ntries == 100) { 2483 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2484 return EIO; 2485 } 2486 2487 /* initialize BBP registers to default values */ 2488 for (i = 0; i < nitems(rum_def_bbp); i++) 2489 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2490 2491 /* write vendor-specific BBP values (from EEPROM) */ 2492 for (i = 0; i < 16; i++) { 2493 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2494 continue; 2495 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2496 } 2497 2498 return 0; 2499} 2500 2501static void 2502rum_clr_shkey_regs(struct rum_softc *sc) 2503{ 2504 rum_write(sc, RT2573_SEC_CSR0, 0); 2505 rum_write(sc, RT2573_SEC_CSR1, 0); 2506 rum_write(sc, RT2573_SEC_CSR5, 0); 2507} 2508 2509static int 2510rum_init(struct rum_softc *sc) 2511{ 2512 struct ieee80211com *ic = &sc->sc_ic; 2513 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2514 uint32_t tmp; 2515 int i, ret; 2516 2517 RUM_LOCK(sc); 2518 if (sc->sc_running) { 2519 ret = 0; 2520 goto end; 2521 } 2522 2523 /* initialize MAC registers to default values */ 2524 for (i = 0; i < nitems(rum_def_mac); i++) 2525 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2526 2527 /* reset some WME parameters to default values */ 2528 sc->wme_params[0].wmep_aifsn = 2; 2529 sc->wme_params[0].wmep_logcwmin = 4; 2530 sc->wme_params[0].wmep_logcwmax = 10; 2531 2532 /* set host ready */ 2533 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2534 rum_write(sc, RT2573_MAC_CSR1, 0); 2535 2536 /* wait for BBP/RF to wakeup */ 2537 if ((ret = rum_bbp_wakeup(sc)) != 0) 2538 goto end; 2539 2540 if ((ret = rum_bbp_init(sc)) != 0) 2541 goto end; 2542 2543 /* select default channel */ 2544 rum_select_band(sc, ic->ic_curchan); 2545 rum_select_antenna(sc); 2546 rum_set_chan(sc, ic->ic_curchan); 2547 2548 /* clear STA registers */ 2549 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2550 2551 /* clear security registers (if required) */ 2552 if (sc->sc_clr_shkeys == 0) { 2553 rum_clr_shkey_regs(sc); 2554 sc->sc_clr_shkeys = 1; 2555 } 2556 2557 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2558 2559 /* initialize ASIC */ 2560 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2561 2562 /* 2563 * Allocate Tx and Rx xfer queues. 2564 */ 2565 rum_setup_tx_list(sc); 2566 2567 /* update Rx filter */ 2568 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2569 2570 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2571 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2572 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2573 RT2573_DROP_ACKCTS; 2574 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2575 tmp |= RT2573_DROP_TODS; 2576 if (ic->ic_promisc == 0) 2577 tmp |= RT2573_DROP_NOT_TO_ME; 2578 } 2579 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2580 2581 sc->sc_running = 1; 2582 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2583 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2584 2585end: RUM_UNLOCK(sc); 2586 2587 if (ret != 0) 2588 rum_stop(sc); 2589 2590 return ret; 2591} 2592 2593static void 2594rum_stop(struct rum_softc *sc) 2595{ 2596 2597 RUM_LOCK(sc); 2598 if (!sc->sc_running) { 2599 RUM_UNLOCK(sc); 2600 return; 2601 } 2602 sc->sc_running = 0; 2603 RUM_UNLOCK(sc); 2604 2605 /* 2606 * Drain the USB transfers, if not already drained: 2607 */ 2608 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2609 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2610 2611 RUM_LOCK(sc); 2612 rum_unsetup_tx_list(sc); 2613 2614 /* disable Rx */ 2615 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2616 2617 /* reset ASIC */ 2618 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2619 rum_write(sc, RT2573_MAC_CSR1, 0); 2620 RUM_UNLOCK(sc); 2621} 2622 2623static void 2624rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2625{ 2626 uint16_t reg = RT2573_MCU_CODE_BASE; 2627 usb_error_t err; 2628 2629 /* copy firmware image into NIC */ 2630 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2631 err = rum_write(sc, reg, UGETDW(ucode)); 2632 if (err) { 2633 /* firmware already loaded ? */ 2634 device_printf(sc->sc_dev, "Firmware load " 2635 "failure! (ignored)\n"); 2636 break; 2637 } 2638 } 2639 2640 err = rum_do_mcu_request(sc, RT2573_MCU_RUN); 2641 if (err != USB_ERR_NORMAL_COMPLETION) { 2642 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2643 usbd_errstr(err)); 2644 } 2645 2646 /* give the chip some time to boot */ 2647 rum_pause(sc, hz / 8); 2648} 2649 2650static int 2651rum_set_sleep_time(struct rum_softc *sc, uint16_t bintval) 2652{ 2653 struct ieee80211com *ic = &sc->sc_ic; 2654 usb_error_t uerror; 2655 int exp, delay; 2656 2657 RUM_LOCK_ASSERT(sc); 2658 2659 exp = ic->ic_lintval / bintval; 2660 delay = ic->ic_lintval % bintval; 2661 2662 if (exp > RT2573_TBCN_EXP_MAX) 2663 exp = RT2573_TBCN_EXP_MAX; 2664 if (delay > RT2573_TBCN_DELAY_MAX) 2665 delay = RT2573_TBCN_DELAY_MAX; 2666 2667 uerror = rum_modbits(sc, RT2573_MAC_CSR11, 2668 RT2573_TBCN_EXP(exp) | 2669 RT2573_TBCN_DELAY(delay), 2670 RT2573_TBCN_EXP(RT2573_TBCN_EXP_MAX) | 2671 RT2573_TBCN_DELAY(RT2573_TBCN_DELAY_MAX)); 2672 2673 if (uerror != USB_ERR_NORMAL_COMPLETION) 2674 return (EIO); 2675 2676 sc->sc_sleep_time = IEEE80211_TU_TO_TICKS(exp * bintval + delay); 2677 2678 return (0); 2679} 2680 2681static int 2682rum_reset(struct ieee80211vap *vap, u_long cmd) 2683{ 2684 struct ieee80211com *ic = vap->iv_ic; 2685 struct ieee80211_node *ni; 2686 struct rum_softc *sc = ic->ic_softc; 2687 int error; 2688 2689 switch (cmd) { 2690 case IEEE80211_IOC_POWERSAVE: 2691 error = 0; 2692 break; 2693 case IEEE80211_IOC_POWERSAVESLEEP: 2694 ni = ieee80211_ref_node(vap->iv_bss); 2695 2696 RUM_LOCK(sc); 2697 error = rum_set_sleep_time(sc, ni->ni_intval); 2698 if (vap->iv_state == IEEE80211_S_SLEEP) { 2699 /* Use new values for wakeup timer. */ 2700 rum_clrbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 2701 rum_setbits(sc, RT2573_MAC_CSR11, RT2573_AUTO_WAKEUP); 2702 } 2703 /* XXX send reassoc */ 2704 RUM_UNLOCK(sc); 2705 2706 ieee80211_free_node(ni); 2707 break; 2708 default: 2709 error = ENETRESET; 2710 break; 2711 } 2712 2713 return (error); 2714} 2715 2716static int 2717rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2718{ 2719 struct ieee80211com *ic = vap->iv_ic; 2720 struct rum_vap *rvp = RUM_VAP(vap); 2721 struct mbuf *m = rvp->bcn_mbuf; 2722 const struct ieee80211_txparam *tp; 2723 struct rum_tx_desc desc; 2724 2725 RUM_LOCK_ASSERT(sc); 2726 2727 if (m == NULL) 2728 return EINVAL; 2729 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2730 return EINVAL; 2731 2732 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2733 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP, 2734 RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate); 2735 2736 /* copy the Tx descriptor into NIC memory */ 2737 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2738 RT2573_TX_DESC_SIZE) != 0) 2739 return EIO; 2740 2741 /* copy beacon header and payload into NIC memory */ 2742 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2743 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2744 return EIO; 2745 2746 return 0; 2747} 2748 2749static int 2750rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2751{ 2752 struct rum_vap *rvp = RUM_VAP(vap); 2753 struct ieee80211_node *ni = vap->iv_bss; 2754 struct mbuf *m; 2755 2756 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2757 return EINVAL; 2758 2759 m = ieee80211_beacon_alloc(ni); 2760 if (m == NULL) 2761 return ENOMEM; 2762 2763 if (rvp->bcn_mbuf != NULL) 2764 m_freem(rvp->bcn_mbuf); 2765 2766 rvp->bcn_mbuf = m; 2767 2768 return (rum_set_beacon(sc, vap)); 2769} 2770 2771static void 2772rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data, 2773 uint8_t rvp_id) 2774{ 2775 struct ieee80211vap *vap = data->vap; 2776 2777 rum_set_beacon(sc, vap); 2778} 2779 2780static void 2781rum_update_beacon(struct ieee80211vap *vap, int item) 2782{ 2783 struct ieee80211com *ic = vap->iv_ic; 2784 struct rum_softc *sc = ic->ic_softc; 2785 struct rum_vap *rvp = RUM_VAP(vap); 2786 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 2787 struct ieee80211_node *ni = vap->iv_bss; 2788 struct mbuf *m = rvp->bcn_mbuf; 2789 int mcast = 0; 2790 2791 RUM_LOCK(sc); 2792 if (m == NULL) { 2793 m = ieee80211_beacon_alloc(ni); 2794 if (m == NULL) { 2795 device_printf(sc->sc_dev, 2796 "%s: could not allocate beacon frame\n", __func__); 2797 RUM_UNLOCK(sc); 2798 return; 2799 } 2800 rvp->bcn_mbuf = m; 2801 } 2802 2803 switch (item) { 2804 case IEEE80211_BEACON_ERP: 2805 rum_update_slot(ic); 2806 break; 2807 case IEEE80211_BEACON_TIM: 2808 mcast = 1; /*TODO*/ 2809 break; 2810 default: 2811 break; 2812 } 2813 RUM_UNLOCK(sc); 2814 2815 setbit(bo->bo_flags, item); 2816 ieee80211_beacon_update(ni, m, mcast); 2817 2818 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb); 2819} 2820 2821static int 2822rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k, 2823 uint16_t base) 2824{ 2825 2826 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen)) 2827 return EIO; 2828 2829 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) { 2830 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE, 2831 k->wk_txmic, 8)) 2832 return EIO; 2833 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8, 2834 k->wk_rxmic, 8)) 2835 return EIO; 2836 } 2837 2838 return 0; 2839} 2840 2841static void 2842rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data, 2843 uint8_t rvp_id) 2844{ 2845 struct ieee80211_key *k = &data->key; 2846 uint8_t mode; 2847 2848 if (sc->sc_clr_shkeys == 0) { 2849 rum_clr_shkey_regs(sc); 2850 sc->sc_clr_shkeys = 1; 2851 } 2852 2853 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2854 if (mode == 0) 2855 goto print_err; 2856 2857 DPRINTFN(1, "setting group key %d for vap %d, mode %d " 2858 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2859 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2860 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2861 2862 /* Install the key. */ 2863 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0) 2864 goto print_err; 2865 2866 /* Set cipher mode. */ 2867 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2868 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX, 2869 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX) 2870 != 0) 2871 goto print_err; 2872 2873 /* Mark this key as valid. */ 2874 if (rum_setbits(sc, RT2573_SEC_CSR0, 2875 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0) 2876 goto print_err; 2877 2878 return; 2879 2880print_err: 2881 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n", 2882 __func__, k->wk_keyix, rvp_id); 2883} 2884 2885static void 2886rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data, 2887 uint8_t rvp_id) 2888{ 2889 struct ieee80211_key *k = &data->key; 2890 2891 DPRINTF("%s: removing group key %d for vap %d\n", __func__, 2892 k->wk_keyix, rvp_id); 2893 rum_clrbits(sc, 2894 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2895 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX); 2896 rum_clrbits(sc, RT2573_SEC_CSR0, 2897 rvp_id * RT2573_SKEY_MAX + k->wk_keyix); 2898} 2899 2900static void 2901rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data, 2902 uint8_t rvp_id) 2903{ 2904 struct ieee80211_key *k = &data->key; 2905 uint8_t buf[IEEE80211_ADDR_LEN + 1]; 2906 uint8_t mode; 2907 2908 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2909 if (mode == 0) 2910 goto print_err; 2911 2912 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d " 2913 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2914 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2915 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2916 2917 /* Install the key. */ 2918 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0) 2919 goto print_err; 2920 2921 IEEE80211_ADDR_COPY(buf, k->wk_macaddr); 2922 buf[IEEE80211_ADDR_LEN] = mode; 2923 2924 /* Set transmitter address and cipher mode. */ 2925 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix), 2926 buf, sizeof buf) != 0) 2927 goto print_err; 2928 2929 /* Enable key table lookup for this vap. */ 2930 if (sc->vap_key_count[rvp_id]++ == 0) 2931 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0) 2932 goto print_err; 2933 2934 /* Mark this key as valid. */ 2935 if (rum_setbits(sc, 2936 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2937 1 << (k->wk_keyix % 32)) != 0) 2938 goto print_err; 2939 2940 return; 2941 2942print_err: 2943 device_printf(sc->sc_dev, 2944 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix, 2945 rvp_id); 2946} 2947 2948static void 2949rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data, 2950 uint8_t rvp_id) 2951{ 2952 struct ieee80211_key *k = &data->key; 2953 2954 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix); 2955 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2956 1 << (k->wk_keyix % 32)); 2957 sc->keys_bmap &= ~(1ULL << k->wk_keyix); 2958 if (--sc->vap_key_count[rvp_id] == 0) 2959 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id); 2960} 2961 2962static int 2963rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 2964 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 2965{ 2966 struct rum_softc *sc = vap->iv_ic->ic_softc; 2967 uint8_t i; 2968 2969 if (!(&vap->iv_nw_keys[0] <= k && 2970 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 2971 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 2972 RUM_LOCK(sc); 2973 for (i = 0; i < RT2573_ADDR_MAX; i++) { 2974 if ((sc->keys_bmap & (1ULL << i)) == 0) { 2975 sc->keys_bmap |= (1ULL << i); 2976 *keyix = i; 2977 break; 2978 } 2979 } 2980 RUM_UNLOCK(sc); 2981 if (i == RT2573_ADDR_MAX) { 2982 device_printf(sc->sc_dev, 2983 "%s: no free space in the key table\n", 2984 __func__); 2985 return 0; 2986 } 2987 } else 2988 *keyix = 0; 2989 } else { 2990 *keyix = k - vap->iv_nw_keys; 2991 } 2992 *rxkeyix = *keyix; 2993 return 1; 2994} 2995 2996static int 2997rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 2998{ 2999 struct rum_softc *sc = vap->iv_ic->ic_softc; 3000 int group; 3001 3002 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 3003 /* Not for us. */ 3004 return 1; 3005 } 3006 3007 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 3008 3009 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 3010 group ? rum_group_key_set_cb : rum_pair_key_set_cb); 3011} 3012 3013static int 3014rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 3015{ 3016 struct rum_softc *sc = vap->iv_ic->ic_softc; 3017 int group; 3018 3019 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 3020 /* Not for us. */ 3021 return 1; 3022 } 3023 3024 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 3025 3026 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 3027 group ? rum_group_key_del_cb : rum_pair_key_del_cb); 3028} 3029 3030static int 3031rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 3032 const struct ieee80211_bpf_params *params) 3033{ 3034 struct rum_softc *sc = ni->ni_ic->ic_softc; 3035 int ret; 3036 3037 RUM_LOCK(sc); 3038 /* prevent management frames from being sent if we're not ready */ 3039 if (!sc->sc_running) { 3040 ret = ENETDOWN; 3041 goto bad; 3042 } 3043 if (sc->tx_nfree < RUM_TX_MINFREE) { 3044 ret = EIO; 3045 goto bad; 3046 } 3047 3048 if (params == NULL) { 3049 /* 3050 * Legacy path; interpret frame contents to decide 3051 * precisely how to send the frame. 3052 */ 3053 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 3054 goto bad; 3055 } else { 3056 /* 3057 * Caller supplied explicit parameters to use in 3058 * sending the frame. 3059 */ 3060 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 3061 goto bad; 3062 } 3063 RUM_UNLOCK(sc); 3064 3065 return 0; 3066bad: 3067 RUM_UNLOCK(sc); 3068 m_freem(m); 3069 return ret; 3070} 3071 3072static void 3073rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 3074{ 3075 struct ieee80211vap *vap = ni->ni_vap; 3076 struct rum_vap *rvp = RUM_VAP(vap); 3077 3078 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 3079 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 3080 3081 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 3082} 3083 3084static void 3085rum_ratectl_timeout(void *arg) 3086{ 3087 struct rum_vap *rvp = arg; 3088 struct ieee80211vap *vap = &rvp->vap; 3089 struct ieee80211com *ic = vap->iv_ic; 3090 3091 ieee80211_runtask(ic, &rvp->ratectl_task); 3092} 3093 3094static void 3095rum_ratectl_task(void *arg, int pending) 3096{ 3097 struct rum_vap *rvp = arg; 3098 struct ieee80211vap *vap = &rvp->vap; 3099 struct rum_softc *sc = vap->iv_ic->ic_softc; 3100 struct ieee80211_node *ni; 3101 int ok[3], fail; 3102 int sum, success, retrycnt; 3103 3104 RUM_LOCK(sc); 3105 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */ 3106 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 3107 3108 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */ 3109 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */ 3110 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */ 3111 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 3112 3113 success = ok[0] + ok[1] + ok[2]; 3114 sum = success + fail; 3115 /* XXX at least */ 3116 retrycnt = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1); 3117 3118 if (sum != 0) { 3119 ni = ieee80211_ref_node(vap->iv_bss); 3120 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 3121 (void) ieee80211_ratectl_rate(ni, NULL, 0); 3122 ieee80211_free_node(ni); 3123 } 3124 3125 /* count TX retry-fail as Tx errors */ 3126 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail); 3127 3128 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 3129 RUM_UNLOCK(sc); 3130} 3131 3132static void 3133rum_scan_start(struct ieee80211com *ic) 3134{ 3135 struct rum_softc *sc = ic->ic_softc; 3136 3137 RUM_LOCK(sc); 3138 rum_abort_tsf_sync(sc); 3139 rum_set_bssid(sc, ieee80211broadcastaddr); 3140 RUM_UNLOCK(sc); 3141 3142} 3143 3144static void 3145rum_scan_end(struct ieee80211com *ic) 3146{ 3147 struct rum_softc *sc = ic->ic_softc; 3148 3149 if (ic->ic_flags_ext & IEEE80211_FEXT_BGSCAN) { 3150 RUM_LOCK(sc); 3151 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 3152 rum_enable_tsf_sync(sc); 3153 else 3154 rum_enable_tsf(sc); 3155 rum_set_bssid(sc, sc->sc_bssid); 3156 RUM_UNLOCK(sc); 3157 } 3158} 3159 3160static void 3161rum_set_channel(struct ieee80211com *ic) 3162{ 3163 struct rum_softc *sc = ic->ic_softc; 3164 3165 RUM_LOCK(sc); 3166 rum_set_chan(sc, ic->ic_curchan); 3167 RUM_UNLOCK(sc); 3168} 3169 3170static void 3171rum_getradiocaps(struct ieee80211com *ic, 3172 int maxchans, int *nchans, struct ieee80211_channel chans[]) 3173{ 3174 struct rum_softc *sc = ic->ic_softc; 3175 uint8_t bands[IEEE80211_MODE_BYTES]; 3176 3177 memset(bands, 0, sizeof(bands)); 3178 setbit(bands, IEEE80211_MODE_11B); 3179 setbit(bands, IEEE80211_MODE_11G); 3180 ieee80211_add_channel_list_2ghz(chans, maxchans, nchans, 3181 rum_chan_2ghz, nitems(rum_chan_2ghz), bands, 0); 3182 3183 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) { 3184 setbit(bands, IEEE80211_MODE_11A); 3185 ieee80211_add_channel_list_5ghz(chans, maxchans, nchans, 3186 rum_chan_5ghz, nitems(rum_chan_5ghz), bands, 0); 3187 } 3188} 3189 3190static int 3191rum_get_rssi(struct rum_softc *sc, uint8_t raw) 3192{ 3193 struct ieee80211com *ic = &sc->sc_ic; 3194 int lna, agc, rssi; 3195 3196 lna = (raw >> 5) & 0x3; 3197 agc = raw & 0x1f; 3198 3199 if (lna == 0) { 3200 /* 3201 * No RSSI mapping 3202 * 3203 * NB: Since RSSI is relative to noise floor, -1 is 3204 * adequate for caller to know error happened. 3205 */ 3206 return -1; 3207 } 3208 3209 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 3210 3211 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 3212 rssi += sc->rssi_2ghz_corr; 3213 3214 if (lna == 1) 3215 rssi -= 64; 3216 else if (lna == 2) 3217 rssi -= 74; 3218 else if (lna == 3) 3219 rssi -= 90; 3220 } else { 3221 rssi += sc->rssi_5ghz_corr; 3222 3223 if (!sc->ext_5ghz_lna && lna != 1) 3224 rssi += 4; 3225 3226 if (lna == 1) 3227 rssi -= 64; 3228 else if (lna == 2) 3229 rssi -= 86; 3230 else if (lna == 3) 3231 rssi -= 100; 3232 } 3233 return rssi; 3234} 3235 3236static int 3237rum_pause(struct rum_softc *sc, int timeout) 3238{ 3239 3240 usb_pause_mtx(&sc->sc_mtx, timeout); 3241 return (0); 3242} 3243 3244static device_method_t rum_methods[] = { 3245 /* Device interface */ 3246 DEVMETHOD(device_probe, rum_match), 3247 DEVMETHOD(device_attach, rum_attach), 3248 DEVMETHOD(device_detach, rum_detach), 3249 DEVMETHOD_END 3250}; 3251 3252static driver_t rum_driver = { 3253 .name = "rum", 3254 .methods = rum_methods, 3255 .size = sizeof(struct rum_softc), 3256}; 3257 3258static devclass_t rum_devclass; 3259 3260DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 3261MODULE_DEPEND(rum, wlan, 1, 1, 1); 3262MODULE_DEPEND(rum, usb, 1, 1, 1); 3263MODULE_VERSION(rum, 1); 3264USB_PNP_HOST_INFO(rum_devs); 3265