if_rum.c revision 289165
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 289165 2015-10-12 04:55:20Z adrian $ */ 2 3/*- 4 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org> 6 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21#include <sys/cdefs.h> 22__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_rum.c 289165 2015-10-12 04:55:20Z adrian $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include <sys/param.h> 30#include <sys/sockio.h> 31#include <sys/sysctl.h> 32#include <sys/lock.h> 33#include <sys/mutex.h> 34#include <sys/mbuf.h> 35#include <sys/kernel.h> 36#include <sys/socket.h> 37#include <sys/systm.h> 38#include <sys/malloc.h> 39#include <sys/module.h> 40#include <sys/bus.h> 41#include <sys/endian.h> 42#include <sys/kdb.h> 43 44#include <machine/bus.h> 45#include <machine/resource.h> 46#include <sys/rman.h> 47 48#include <net/bpf.h> 49#include <net/if.h> 50#include <net/if_var.h> 51#include <net/if_arp.h> 52#include <net/ethernet.h> 53#include <net/if_dl.h> 54#include <net/if_media.h> 55#include <net/if_types.h> 56 57#ifdef INET 58#include <netinet/in.h> 59#include <netinet/in_systm.h> 60#include <netinet/in_var.h> 61#include <netinet/if_ether.h> 62#include <netinet/ip.h> 63#endif 64 65#include <net80211/ieee80211_var.h> 66#include <net80211/ieee80211_regdomain.h> 67#include <net80211/ieee80211_radiotap.h> 68#include <net80211/ieee80211_ratectl.h> 69 70#include <dev/usb/usb.h> 71#include <dev/usb/usbdi.h> 72#include "usbdevs.h" 73 74#define USB_DEBUG_VAR rum_debug 75#include <dev/usb/usb_debug.h> 76 77#include <dev/usb/wlan/if_rumreg.h> 78#include <dev/usb/wlan/if_rumvar.h> 79#include <dev/usb/wlan/if_rumfw.h> 80 81#ifdef USB_DEBUG 82static int rum_debug = 0; 83 84static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 85SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0, 86 "Debug level"); 87#endif 88 89static const STRUCT_USB_HOST_ID rum_devs[] = { 90#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 91 RUM_DEV(ABOCOM, HWU54DM), 92 RUM_DEV(ABOCOM, RT2573_2), 93 RUM_DEV(ABOCOM, RT2573_3), 94 RUM_DEV(ABOCOM, RT2573_4), 95 RUM_DEV(ABOCOM, WUG2700), 96 RUM_DEV(AMIT, CGWLUSB2GO), 97 RUM_DEV(ASUS, RT2573_1), 98 RUM_DEV(ASUS, RT2573_2), 99 RUM_DEV(BELKIN, F5D7050A), 100 RUM_DEV(BELKIN, F5D9050V3), 101 RUM_DEV(CISCOLINKSYS, WUSB54GC), 102 RUM_DEV(CISCOLINKSYS, WUSB54GR), 103 RUM_DEV(CONCEPTRONIC2, C54RU2), 104 RUM_DEV(COREGA, CGWLUSB2GL), 105 RUM_DEV(COREGA, CGWLUSB2GPX), 106 RUM_DEV(DICKSMITH, CWD854F), 107 RUM_DEV(DICKSMITH, RT2573), 108 RUM_DEV(EDIMAX, EW7318USG), 109 RUM_DEV(DLINK2, DWLG122C1), 110 RUM_DEV(DLINK2, WUA1340), 111 RUM_DEV(DLINK2, DWA111), 112 RUM_DEV(DLINK2, DWA110), 113 RUM_DEV(GIGABYTE, GNWB01GS), 114 RUM_DEV(GIGABYTE, GNWI05GS), 115 RUM_DEV(GIGASET, RT2573), 116 RUM_DEV(GOODWAY, RT2573), 117 RUM_DEV(GUILLEMOT, HWGUSB254LB), 118 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 119 RUM_DEV(HUAWEI3COM, WUB320G), 120 RUM_DEV(MELCO, G54HP), 121 RUM_DEV(MELCO, SG54HP), 122 RUM_DEV(MELCO, SG54HG), 123 RUM_DEV(MELCO, WLIUCG), 124 RUM_DEV(MELCO, WLRUCG), 125 RUM_DEV(MELCO, WLRUCGAOSS), 126 RUM_DEV(MSI, RT2573_1), 127 RUM_DEV(MSI, RT2573_2), 128 RUM_DEV(MSI, RT2573_3), 129 RUM_DEV(MSI, RT2573_4), 130 RUM_DEV(NOVATECH, RT2573), 131 RUM_DEV(PLANEX2, GWUS54HP), 132 RUM_DEV(PLANEX2, GWUS54MINI2), 133 RUM_DEV(PLANEX2, GWUSMM), 134 RUM_DEV(QCOM, RT2573), 135 RUM_DEV(QCOM, RT2573_2), 136 RUM_DEV(QCOM, RT2573_3), 137 RUM_DEV(RALINK, RT2573), 138 RUM_DEV(RALINK, RT2573_2), 139 RUM_DEV(RALINK, RT2671), 140 RUM_DEV(SITECOMEU, WL113R2), 141 RUM_DEV(SITECOMEU, WL172), 142 RUM_DEV(SPARKLAN, RT2573), 143 RUM_DEV(SURECOM, RT2573), 144#undef RUM_DEV 145}; 146 147static device_probe_t rum_match; 148static device_attach_t rum_attach; 149static device_detach_t rum_detach; 150 151static usb_callback_t rum_bulk_read_callback; 152static usb_callback_t rum_bulk_write_callback; 153 154static usb_error_t rum_do_request(struct rum_softc *sc, 155 struct usb_device_request *req, void *data); 156static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 157 const char [IFNAMSIZ], int, enum ieee80211_opmode, 158 int, const uint8_t [IEEE80211_ADDR_LEN], 159 const uint8_t [IEEE80211_ADDR_LEN]); 160static void rum_vap_delete(struct ieee80211vap *); 161static void rum_cmdq_cb(void *, int); 162static int rum_cmd_sleepable(struct rum_softc *, const void *, 163 size_t, uint8_t, CMD_FUNC_PROTO); 164static void rum_tx_free(struct rum_tx_data *, int); 165static void rum_setup_tx_list(struct rum_softc *); 166static void rum_unsetup_tx_list(struct rum_softc *); 167static int rum_newstate(struct ieee80211vap *, 168 enum ieee80211_state, int); 169static uint8_t rum_crypto_mode(struct rum_softc *, u_int, int); 170static void rum_setup_tx_desc(struct rum_softc *, 171 struct rum_tx_desc *, struct ieee80211_key *, 172 uint32_t, uint8_t, uint8_t, int, int, int); 173static uint32_t rum_tx_crypto_flags(struct rum_softc *, 174 struct ieee80211_node *, 175 const struct ieee80211_key *); 176static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 177 struct ieee80211_node *); 178static int rum_tx_raw(struct rum_softc *, struct mbuf *, 179 struct ieee80211_node *, 180 const struct ieee80211_bpf_params *); 181static int rum_tx_data(struct rum_softc *, struct mbuf *, 182 struct ieee80211_node *); 183static int rum_transmit(struct ieee80211com *, struct mbuf *); 184static void rum_start(struct rum_softc *); 185static void rum_parent(struct ieee80211com *); 186static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 187 int); 188static uint32_t rum_read(struct rum_softc *, uint16_t); 189static void rum_read_multi(struct rum_softc *, uint16_t, void *, 190 int); 191static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 192static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 193 size_t); 194static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 195static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 196static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 197 uint32_t); 198static int rum_bbp_busy(struct rum_softc *); 199static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 200static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 201static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 202static void rum_select_antenna(struct rum_softc *); 203static void rum_enable_mrr(struct rum_softc *); 204static void rum_set_txpreamble(struct rum_softc *); 205static void rum_set_basicrates(struct rum_softc *); 206static void rum_select_band(struct rum_softc *, 207 struct ieee80211_channel *); 208static void rum_set_chan(struct rum_softc *, 209 struct ieee80211_channel *); 210static void rum_set_maxretry(struct rum_softc *, 211 struct ieee80211vap *); 212static int rum_enable_tsf_sync(struct rum_softc *); 213static void rum_enable_tsf(struct rum_softc *); 214static void rum_abort_tsf_sync(struct rum_softc *); 215static void rum_get_tsf(struct rum_softc *, uint64_t *); 216static void rum_update_slot_cb(struct rum_softc *, 217 union sec_param *, uint8_t); 218static void rum_update_slot(struct ieee80211com *); 219static void rum_wme_update_cb(struct rum_softc *, 220 union sec_param *, uint8_t); 221static int rum_wme_update(struct ieee80211com *); 222static void rum_set_bssid(struct rum_softc *, const uint8_t *); 223static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 224static void rum_update_mcast(struct ieee80211com *); 225static void rum_update_promisc(struct ieee80211com *); 226static void rum_setpromisc(struct rum_softc *); 227static const char *rum_get_rf(int); 228static void rum_read_eeprom(struct rum_softc *); 229static int rum_bbp_wakeup(struct rum_softc *); 230static int rum_bbp_init(struct rum_softc *); 231static void rum_clr_shkey_regs(struct rum_softc *); 232static int rum_init(struct rum_softc *); 233static void rum_stop(struct rum_softc *); 234static void rum_load_microcode(struct rum_softc *, const uint8_t *, 235 size_t); 236static int rum_set_beacon(struct rum_softc *, 237 struct ieee80211vap *); 238static int rum_alloc_beacon(struct rum_softc *, 239 struct ieee80211vap *); 240static void rum_update_beacon_cb(struct rum_softc *, 241 union sec_param *, uint8_t); 242static void rum_update_beacon(struct ieee80211vap *, int); 243static int rum_common_key_set(struct rum_softc *, 244 struct ieee80211_key *, uint16_t); 245static void rum_group_key_set_cb(struct rum_softc *, 246 union sec_param *, uint8_t); 247static void rum_group_key_del_cb(struct rum_softc *, 248 union sec_param *, uint8_t); 249static void rum_pair_key_set_cb(struct rum_softc *, 250 union sec_param *, uint8_t); 251static void rum_pair_key_del_cb(struct rum_softc *, 252 union sec_param *, uint8_t); 253static int rum_key_alloc(struct ieee80211vap *, 254 struct ieee80211_key *, ieee80211_keyix *, 255 ieee80211_keyix *); 256static int rum_key_set(struct ieee80211vap *, 257 const struct ieee80211_key *); 258static int rum_key_delete(struct ieee80211vap *, 259 const struct ieee80211_key *); 260static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 261 const struct ieee80211_bpf_params *); 262static void rum_scan_start(struct ieee80211com *); 263static void rum_scan_end(struct ieee80211com *); 264static void rum_set_channel(struct ieee80211com *); 265static int rum_get_rssi(struct rum_softc *, uint8_t); 266static void rum_ratectl_start(struct rum_softc *, 267 struct ieee80211_node *); 268static void rum_ratectl_timeout(void *); 269static void rum_ratectl_task(void *, int); 270static int rum_pause(struct rum_softc *, int); 271 272static const struct { 273 uint32_t reg; 274 uint32_t val; 275} rum_def_mac[] = { 276 { RT2573_TXRX_CSR0, 0x025fb032 }, 277 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 278 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 279 { RT2573_TXRX_CSR3, 0x00858687 }, 280 { RT2573_TXRX_CSR7, 0x2e31353b }, 281 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 282 { RT2573_TXRX_CSR15, 0x0000000f }, 283 { RT2573_MAC_CSR6, 0x00000fff }, 284 { RT2573_MAC_CSR8, 0x016c030a }, 285 { RT2573_MAC_CSR10, 0x00000718 }, 286 { RT2573_MAC_CSR12, 0x00000004 }, 287 { RT2573_MAC_CSR13, 0x00007f00 }, 288 { RT2573_SEC_CSR2, 0x00000000 }, 289 { RT2573_SEC_CSR3, 0x00000000 }, 290 { RT2573_SEC_CSR4, 0x00000000 }, 291 { RT2573_PHY_CSR1, 0x000023b0 }, 292 { RT2573_PHY_CSR5, 0x00040a06 }, 293 { RT2573_PHY_CSR6, 0x00080606 }, 294 { RT2573_PHY_CSR7, 0x00000408 }, 295 { RT2573_AIFSN_CSR, 0x00002273 }, 296 { RT2573_CWMIN_CSR, 0x00002344 }, 297 { RT2573_CWMAX_CSR, 0x000034aa } 298}; 299 300static const struct { 301 uint8_t reg; 302 uint8_t val; 303} rum_def_bbp[] = { 304 { 3, 0x80 }, 305 { 15, 0x30 }, 306 { 17, 0x20 }, 307 { 21, 0xc8 }, 308 { 22, 0x38 }, 309 { 23, 0x06 }, 310 { 24, 0xfe }, 311 { 25, 0x0a }, 312 { 26, 0x0d }, 313 { 32, 0x0b }, 314 { 34, 0x12 }, 315 { 37, 0x07 }, 316 { 39, 0xf8 }, 317 { 41, 0x60 }, 318 { 53, 0x10 }, 319 { 54, 0x18 }, 320 { 60, 0x10 }, 321 { 61, 0x04 }, 322 { 62, 0x04 }, 323 { 75, 0xfe }, 324 { 86, 0xfe }, 325 { 88, 0xfe }, 326 { 90, 0x0f }, 327 { 99, 0x00 }, 328 { 102, 0x16 }, 329 { 107, 0x04 } 330}; 331 332static const struct rfprog { 333 uint8_t chan; 334 uint32_t r1, r2, r3, r4; 335} rum_rf5226[] = { 336 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 337 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 338 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 339 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 340 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 341 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 342 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 343 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 344 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 345 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 346 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 347 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 348 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 349 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 350 351 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 352 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 353 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 354 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 355 356 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 357 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 358 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 359 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 360 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 361 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 362 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 363 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 364 365 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 366 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 367 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 368 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 369 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 370 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 371 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 372 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 373 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 374 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 375 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 376 377 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 378 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 379 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 380 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 381 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 382}, rum_rf5225[] = { 383 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 384 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 385 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 386 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 387 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 388 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 389 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 390 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 391 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 392 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 393 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 394 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 395 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 396 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 397 398 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 399 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 400 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 401 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 402 403 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 404 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 405 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 406 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 407 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 408 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 409 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 410 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 411 412 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 413 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 414 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 415 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 416 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 417 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 418 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 419 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 420 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 421 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 422 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 423 424 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 425 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 426 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 427 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 428 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 429}; 430 431static const struct usb_config rum_config[RUM_N_TRANSFER] = { 432 [RUM_BULK_WR] = { 433 .type = UE_BULK, 434 .endpoint = UE_ADDR_ANY, 435 .direction = UE_DIR_OUT, 436 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 437 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 438 .callback = rum_bulk_write_callback, 439 .timeout = 5000, /* ms */ 440 }, 441 [RUM_BULK_RD] = { 442 .type = UE_BULK, 443 .endpoint = UE_ADDR_ANY, 444 .direction = UE_DIR_IN, 445 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 446 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 447 .callback = rum_bulk_read_callback, 448 }, 449}; 450 451static int 452rum_match(device_t self) 453{ 454 struct usb_attach_arg *uaa = device_get_ivars(self); 455 456 if (uaa->usb_mode != USB_MODE_HOST) 457 return (ENXIO); 458 if (uaa->info.bConfigIndex != 0) 459 return (ENXIO); 460 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 461 return (ENXIO); 462 463 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 464} 465 466static int 467rum_attach(device_t self) 468{ 469 struct usb_attach_arg *uaa = device_get_ivars(self); 470 struct rum_softc *sc = device_get_softc(self); 471 struct ieee80211com *ic = &sc->sc_ic; 472 uint8_t iface_index, bands; 473 uint32_t tmp; 474 int error, ntries; 475 476 device_set_usb_desc(self); 477 sc->sc_udev = uaa->device; 478 sc->sc_dev = self; 479 480 RUM_LOCK_INIT(sc); 481 RUM_CMDQ_LOCK_INIT(sc); 482 mbufq_init(&sc->sc_snd, ifqmaxlen); 483 484 iface_index = RT2573_IFACE_INDEX; 485 error = usbd_transfer_setup(uaa->device, &iface_index, 486 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 487 if (error) { 488 device_printf(self, "could not allocate USB transfers, " 489 "err=%s\n", usbd_errstr(error)); 490 goto detach; 491 } 492 493 RUM_LOCK(sc); 494 /* retrieve RT2573 rev. no */ 495 for (ntries = 0; ntries < 100; ntries++) { 496 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 497 break; 498 if (rum_pause(sc, hz / 100)) 499 break; 500 } 501 if (ntries == 100) { 502 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 503 RUM_UNLOCK(sc); 504 goto detach; 505 } 506 507 /* retrieve MAC address and various other things from EEPROM */ 508 rum_read_eeprom(sc); 509 510 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 511 tmp, rum_get_rf(sc->rf_rev)); 512 513 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 514 RUM_UNLOCK(sc); 515 516 ic->ic_softc = sc; 517 ic->ic_name = device_get_nameunit(self); 518 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 519 520 /* set device capabilities */ 521 ic->ic_caps = 522 IEEE80211_C_STA /* station mode supported */ 523 | IEEE80211_C_IBSS /* IBSS mode supported */ 524 | IEEE80211_C_MONITOR /* monitor mode supported */ 525 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 526 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 527 | IEEE80211_C_TXPMGT /* tx power management */ 528 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 529 | IEEE80211_C_SHSLOT /* short slot time supported */ 530 | IEEE80211_C_BGSCAN /* bg scanning supported */ 531 | IEEE80211_C_WPA /* 802.11i */ 532 | IEEE80211_C_WME /* 802.11e */ 533 ; 534 535 ic->ic_cryptocaps = 536 IEEE80211_CRYPTO_WEP | 537 IEEE80211_CRYPTO_AES_CCM | 538 IEEE80211_CRYPTO_TKIPMIC | 539 IEEE80211_CRYPTO_TKIP; 540 541 bands = 0; 542 setbit(&bands, IEEE80211_MODE_11B); 543 setbit(&bands, IEEE80211_MODE_11G); 544 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 545 setbit(&bands, IEEE80211_MODE_11A); 546 ieee80211_init_channels(ic, NULL, &bands); 547 548 ieee80211_ifattach(ic); 549 ic->ic_update_promisc = rum_update_promisc; 550 ic->ic_raw_xmit = rum_raw_xmit; 551 ic->ic_scan_start = rum_scan_start; 552 ic->ic_scan_end = rum_scan_end; 553 ic->ic_set_channel = rum_set_channel; 554 ic->ic_transmit = rum_transmit; 555 ic->ic_parent = rum_parent; 556 ic->ic_vap_create = rum_vap_create; 557 ic->ic_vap_delete = rum_vap_delete; 558 ic->ic_updateslot = rum_update_slot; 559 ic->ic_wme.wme_update = rum_wme_update; 560 ic->ic_update_mcast = rum_update_mcast; 561 562 ieee80211_radiotap_attach(ic, 563 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 564 RT2573_TX_RADIOTAP_PRESENT, 565 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 566 RT2573_RX_RADIOTAP_PRESENT); 567 568 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 569 570 if (bootverbose) 571 ieee80211_announce(ic); 572 573 return (0); 574 575detach: 576 rum_detach(self); 577 return (ENXIO); /* failure */ 578} 579 580static int 581rum_detach(device_t self) 582{ 583 struct rum_softc *sc = device_get_softc(self); 584 struct ieee80211com *ic = &sc->sc_ic; 585 586 /* Prevent further ioctls */ 587 RUM_LOCK(sc); 588 sc->sc_detached = 1; 589 RUM_UNLOCK(sc); 590 591 /* stop all USB transfers */ 592 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 593 594 /* free TX list, if any */ 595 RUM_LOCK(sc); 596 rum_unsetup_tx_list(sc); 597 RUM_UNLOCK(sc); 598 599 if (ic->ic_softc == sc) { 600 ieee80211_draintask(ic, &sc->cmdq_task); 601 ieee80211_ifdetach(ic); 602 } 603 604 mbufq_drain(&sc->sc_snd); 605 RUM_CMDQ_LOCK_DESTROY(sc); 606 RUM_LOCK_DESTROY(sc); 607 608 return (0); 609} 610 611static usb_error_t 612rum_do_request(struct rum_softc *sc, 613 struct usb_device_request *req, void *data) 614{ 615 usb_error_t err; 616 int ntries = 10; 617 618 while (ntries--) { 619 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 620 req, data, 0, NULL, 250 /* ms */); 621 if (err == 0) 622 break; 623 624 DPRINTFN(1, "Control request failed, %s (retrying)\n", 625 usbd_errstr(err)); 626 if (rum_pause(sc, hz / 100)) 627 break; 628 } 629 return (err); 630} 631 632static struct ieee80211vap * 633rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 634 enum ieee80211_opmode opmode, int flags, 635 const uint8_t bssid[IEEE80211_ADDR_LEN], 636 const uint8_t mac[IEEE80211_ADDR_LEN]) 637{ 638 struct rum_softc *sc = ic->ic_softc; 639 struct rum_vap *rvp; 640 struct ieee80211vap *vap; 641 642 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 643 return NULL; 644 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 645 vap = &rvp->vap; 646 /* enable s/w bmiss handling for sta mode */ 647 648 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 649 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 650 /* out of memory */ 651 free(rvp, M_80211_VAP); 652 return (NULL); 653 } 654 655 /* override state transition machine */ 656 rvp->newstate = vap->iv_newstate; 657 vap->iv_newstate = rum_newstate; 658 vap->iv_key_alloc = rum_key_alloc; 659 vap->iv_key_set = rum_key_set; 660 vap->iv_key_delete = rum_key_delete; 661 vap->iv_update_beacon = rum_update_beacon; 662 vap->iv_max_aid = RT2573_ADDR_MAX; 663 664 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 665 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 666 ieee80211_ratectl_init(vap); 667 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 668 /* complete setup */ 669 ieee80211_vap_attach(vap, ieee80211_media_change, 670 ieee80211_media_status, mac); 671 ic->ic_opmode = opmode; 672 return vap; 673} 674 675static void 676rum_vap_delete(struct ieee80211vap *vap) 677{ 678 struct rum_vap *rvp = RUM_VAP(vap); 679 struct ieee80211com *ic = vap->iv_ic; 680 681 m_freem(rvp->bcn_mbuf); 682 usb_callout_drain(&rvp->ratectl_ch); 683 ieee80211_draintask(ic, &rvp->ratectl_task); 684 ieee80211_ratectl_deinit(vap); 685 ieee80211_vap_detach(vap); 686 free(rvp, M_80211_VAP); 687} 688 689static void 690rum_cmdq_cb(void *arg, int pending) 691{ 692 struct rum_softc *sc = arg; 693 struct rum_cmdq *rc; 694 695 RUM_CMDQ_LOCK(sc); 696 while (sc->cmdq[sc->cmdq_first].func != NULL) { 697 rc = &sc->cmdq[sc->cmdq_first]; 698 RUM_CMDQ_UNLOCK(sc); 699 700 RUM_LOCK(sc); 701 rc->func(sc, &rc->data, rc->rvp_id); 702 RUM_UNLOCK(sc); 703 704 RUM_CMDQ_LOCK(sc); 705 memset(rc, 0, sizeof (*rc)); 706 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 707 } 708 RUM_CMDQ_UNLOCK(sc); 709} 710 711static int 712rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 713 uint8_t rvp_id, CMD_FUNC_PROTO) 714{ 715 struct ieee80211com *ic = &sc->sc_ic; 716 717 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 718 719 RUM_CMDQ_LOCK(sc); 720 if (sc->cmdq[sc->cmdq_last].func != NULL) { 721 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 722 RUM_CMDQ_UNLOCK(sc); 723 724 return EAGAIN; 725 } 726 727 if (ptr != NULL) 728 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 729 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 730 sc->cmdq[sc->cmdq_last].func = func; 731 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 732 RUM_CMDQ_UNLOCK(sc); 733 734 ieee80211_runtask(ic, &sc->cmdq_task); 735 736 return 0; 737} 738 739static void 740rum_tx_free(struct rum_tx_data *data, int txerr) 741{ 742 struct rum_softc *sc = data->sc; 743 744 if (data->m != NULL) { 745 ieee80211_tx_complete(data->ni, data->m, txerr); 746 data->m = NULL; 747 data->ni = NULL; 748 } 749 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 750 sc->tx_nfree++; 751} 752 753static void 754rum_setup_tx_list(struct rum_softc *sc) 755{ 756 struct rum_tx_data *data; 757 int i; 758 759 sc->tx_nfree = 0; 760 STAILQ_INIT(&sc->tx_q); 761 STAILQ_INIT(&sc->tx_free); 762 763 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 764 data = &sc->tx_data[i]; 765 766 data->sc = sc; 767 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 768 sc->tx_nfree++; 769 } 770} 771 772static void 773rum_unsetup_tx_list(struct rum_softc *sc) 774{ 775 struct rum_tx_data *data; 776 int i; 777 778 /* make sure any subsequent use of the queues will fail */ 779 sc->tx_nfree = 0; 780 STAILQ_INIT(&sc->tx_q); 781 STAILQ_INIT(&sc->tx_free); 782 783 /* free up all node references and mbufs */ 784 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 785 data = &sc->tx_data[i]; 786 787 if (data->m != NULL) { 788 m_freem(data->m); 789 data->m = NULL; 790 } 791 if (data->ni != NULL) { 792 ieee80211_free_node(data->ni); 793 data->ni = NULL; 794 } 795 } 796} 797 798static int 799rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 800{ 801 struct rum_vap *rvp = RUM_VAP(vap); 802 struct ieee80211com *ic = vap->iv_ic; 803 struct rum_softc *sc = ic->ic_softc; 804 const struct ieee80211_txparam *tp; 805 enum ieee80211_state ostate; 806 struct ieee80211_node *ni; 807 int ret; 808 809 ostate = vap->iv_state; 810 DPRINTF("%s -> %s\n", 811 ieee80211_state_name[ostate], 812 ieee80211_state_name[nstate]); 813 814 IEEE80211_UNLOCK(ic); 815 RUM_LOCK(sc); 816 usb_callout_stop(&rvp->ratectl_ch); 817 818 switch (nstate) { 819 case IEEE80211_S_INIT: 820 if (ostate == IEEE80211_S_RUN) 821 rum_abort_tsf_sync(sc); 822 823 break; 824 825 case IEEE80211_S_RUN: 826 ni = ieee80211_ref_node(vap->iv_bss); 827 828 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 829 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC || 830 ni->ni_chan == IEEE80211_CHAN_ANYC) { 831 ret = EINVAL; 832 goto run_fail; 833 } 834 rum_update_slot_cb(sc, NULL, 0); 835 rum_enable_mrr(sc); 836 rum_set_txpreamble(sc); 837 rum_set_basicrates(sc); 838 rum_set_maxretry(sc, vap); 839 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 840 rum_set_bssid(sc, sc->sc_bssid); 841 } 842 843 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 844 vap->iv_opmode == IEEE80211_M_IBSS) { 845 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 846 goto run_fail; 847 } 848 849 if (vap->iv_opmode != IEEE80211_M_MONITOR && 850 vap->iv_opmode != IEEE80211_M_AHDEMO) { 851 if ((ret = rum_enable_tsf_sync(sc)) != 0) 852 goto run_fail; 853 } else 854 rum_enable_tsf(sc); 855 856 /* enable automatic rate adaptation */ 857 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 858 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 859 rum_ratectl_start(sc, ni); 860 ieee80211_free_node(ni); 861 break; 862 default: 863 break; 864 } 865 RUM_UNLOCK(sc); 866 IEEE80211_LOCK(ic); 867 return (rvp->newstate(vap, nstate, arg)); 868 869run_fail: 870 RUM_UNLOCK(sc); 871 IEEE80211_LOCK(ic); 872 ieee80211_free_node(ni); 873 return ret; 874} 875 876static void 877rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 878{ 879 struct rum_softc *sc = usbd_xfer_softc(xfer); 880 struct ieee80211vap *vap; 881 struct rum_tx_data *data; 882 struct mbuf *m; 883 struct usb_page_cache *pc; 884 unsigned int len; 885 int actlen, sumlen; 886 887 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 888 889 switch (USB_GET_STATE(xfer)) { 890 case USB_ST_TRANSFERRED: 891 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 892 893 /* free resources */ 894 data = usbd_xfer_get_priv(xfer); 895 rum_tx_free(data, 0); 896 usbd_xfer_set_priv(xfer, NULL); 897 898 /* FALLTHROUGH */ 899 case USB_ST_SETUP: 900tr_setup: 901 data = STAILQ_FIRST(&sc->tx_q); 902 if (data) { 903 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 904 m = data->m; 905 906 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 907 DPRINTFN(0, "data overflow, %u bytes\n", 908 m->m_pkthdr.len); 909 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 910 } 911 pc = usbd_xfer_get_frame(xfer, 0); 912 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 913 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 914 m->m_pkthdr.len); 915 916 vap = data->ni->ni_vap; 917 if (ieee80211_radiotap_active_vap(vap)) { 918 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 919 920 tap->wt_flags = 0; 921 tap->wt_rate = data->rate; 922 rum_get_tsf(sc, &tap->wt_tsf); 923 tap->wt_antenna = sc->tx_ant; 924 925 ieee80211_radiotap_tx(vap, m); 926 } 927 928 /* align end on a 4-bytes boundary */ 929 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 930 if ((len % 64) == 0) 931 len += 4; 932 933 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 934 m->m_pkthdr.len, len); 935 936 usbd_xfer_set_frame_len(xfer, 0, len); 937 usbd_xfer_set_priv(xfer, data); 938 939 usbd_transfer_submit(xfer); 940 } 941 rum_start(sc); 942 break; 943 944 default: /* Error */ 945 DPRINTFN(11, "transfer error, %s\n", 946 usbd_errstr(error)); 947 948 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 949 data = usbd_xfer_get_priv(xfer); 950 if (data != NULL) { 951 rum_tx_free(data, error); 952 usbd_xfer_set_priv(xfer, NULL); 953 } 954 955 if (error != USB_ERR_CANCELLED) { 956 if (error == USB_ERR_TIMEOUT) 957 device_printf(sc->sc_dev, "device timeout\n"); 958 959 /* 960 * Try to clear stall first, also if other 961 * errors occur, hence clearing stall 962 * introduces a 50 ms delay: 963 */ 964 usbd_xfer_set_stall(xfer); 965 goto tr_setup; 966 } 967 break; 968 } 969} 970 971static void 972rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 973{ 974 struct rum_softc *sc = usbd_xfer_softc(xfer); 975 struct ieee80211com *ic = &sc->sc_ic; 976 struct ieee80211_frame_min *wh; 977 struct ieee80211_node *ni; 978 struct mbuf *m = NULL; 979 struct usb_page_cache *pc; 980 uint32_t flags; 981 uint8_t rssi = 0; 982 int len; 983 984 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 985 986 switch (USB_GET_STATE(xfer)) { 987 case USB_ST_TRANSFERRED: 988 989 DPRINTFN(15, "rx done, actlen=%d\n", len); 990 991 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 992 DPRINTF("%s: xfer too short %d\n", 993 device_get_nameunit(sc->sc_dev), len); 994 counter_u64_add(ic->ic_ierrors, 1); 995 goto tr_setup; 996 } 997 998 len -= RT2573_RX_DESC_SIZE; 999 pc = usbd_xfer_get_frame(xfer, 0); 1000 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 1001 1002 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 1003 flags = le32toh(sc->sc_rx_desc.flags); 1004 if (flags & RT2573_RX_CRC_ERROR) { 1005 /* 1006 * This should not happen since we did not 1007 * request to receive those frames when we 1008 * filled RUM_TXRX_CSR2: 1009 */ 1010 DPRINTFN(5, "PHY or CRC error\n"); 1011 counter_u64_add(ic->ic_ierrors, 1); 1012 goto tr_setup; 1013 } 1014 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) { 1015 switch (flags & RT2573_RX_DEC_MASK) { 1016 case RT2573_RX_IV_ERROR: 1017 DPRINTFN(5, "IV/EIV error\n"); 1018 break; 1019 case RT2573_RX_MIC_ERROR: 1020 DPRINTFN(5, "MIC error\n"); 1021 break; 1022 case RT2573_RX_KEY_ERROR: 1023 DPRINTFN(5, "Key error\n"); 1024 break; 1025 } 1026 counter_u64_add(ic->ic_ierrors, 1); 1027 goto tr_setup; 1028 } 1029 1030 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1031 if (m == NULL) { 1032 DPRINTF("could not allocate mbuf\n"); 1033 counter_u64_add(ic->ic_ierrors, 1); 1034 goto tr_setup; 1035 } 1036 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 1037 mtod(m, uint8_t *), len); 1038 1039 wh = mtod(m, struct ieee80211_frame_min *); 1040 1041 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1042 (flags & RT2573_RX_CIP_MASK) != 1043 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) { 1044 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 1045 m->m_flags |= M_WEP; 1046 } 1047 1048 /* finalize mbuf */ 1049 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 1050 1051 if (ieee80211_radiotap_active(ic)) { 1052 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 1053 1054 tap->wr_flags = 0; 1055 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 1056 (flags & RT2573_RX_OFDM) ? 1057 IEEE80211_T_OFDM : IEEE80211_T_CCK); 1058 rum_get_tsf(sc, &tap->wr_tsf); 1059 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 1060 tap->wr_antnoise = RT2573_NOISE_FLOOR; 1061 tap->wr_antenna = sc->rx_ant; 1062 } 1063 /* FALLTHROUGH */ 1064 case USB_ST_SETUP: 1065tr_setup: 1066 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1067 usbd_transfer_submit(xfer); 1068 1069 /* 1070 * At the end of a USB callback it is always safe to unlock 1071 * the private mutex of a device! That is why we do the 1072 * "ieee80211_input" here, and not some lines up! 1073 */ 1074 RUM_UNLOCK(sc); 1075 if (m) { 1076 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1077 ni = ieee80211_find_rxnode(ic, wh); 1078 else 1079 ni = NULL; 1080 1081 if (ni != NULL) { 1082 (void) ieee80211_input(ni, m, rssi, 1083 RT2573_NOISE_FLOOR); 1084 ieee80211_free_node(ni); 1085 } else 1086 (void) ieee80211_input_all(ic, m, rssi, 1087 RT2573_NOISE_FLOOR); 1088 } 1089 RUM_LOCK(sc); 1090 rum_start(sc); 1091 return; 1092 1093 default: /* Error */ 1094 if (error != USB_ERR_CANCELLED) { 1095 /* try to clear stall first */ 1096 usbd_xfer_set_stall(xfer); 1097 goto tr_setup; 1098 } 1099 return; 1100 } 1101} 1102 1103static uint8_t 1104rum_plcp_signal(int rate) 1105{ 1106 switch (rate) { 1107 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1108 case 12: return 0xb; 1109 case 18: return 0xf; 1110 case 24: return 0xa; 1111 case 36: return 0xe; 1112 case 48: return 0x9; 1113 case 72: return 0xd; 1114 case 96: return 0x8; 1115 case 108: return 0xc; 1116 1117 /* CCK rates (NB: not IEEE std, device-specific) */ 1118 case 2: return 0x0; 1119 case 4: return 0x1; 1120 case 11: return 0x2; 1121 case 22: return 0x3; 1122 } 1123 return 0xff; /* XXX unsupported/unknown rate */ 1124} 1125 1126/* 1127 * Map net80211 cipher to RT2573 security mode. 1128 */ 1129static uint8_t 1130rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen) 1131{ 1132 switch (cipher) { 1133 case IEEE80211_CIPHER_WEP: 1134 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104); 1135 case IEEE80211_CIPHER_TKIP: 1136 return RT2573_MODE_TKIP; 1137 case IEEE80211_CIPHER_AES_CCM: 1138 return RT2573_MODE_AES_CCMP; 1139 default: 1140 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1141 return 0; 1142 } 1143} 1144 1145static void 1146rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1147 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, uint8_t qid, 1148 int hdrlen, int len, int rate) 1149{ 1150 struct ieee80211com *ic = &sc->sc_ic; 1151 struct wmeParams *wmep = &sc->wme_params[qid]; 1152 uint16_t plcp_length; 1153 int remainder; 1154 1155 flags |= RT2573_TX_VALID; 1156 flags |= len << 16; 1157 1158 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1159 const struct ieee80211_cipher *cip = k->wk_cipher; 1160 1161 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen; 1162 1163 desc->eiv = 0; /* for WEP */ 1164 cip->ic_setiv(k, (uint8_t *)&desc->iv); 1165 } 1166 1167 /* setup PLCP fields */ 1168 desc->plcp_signal = rum_plcp_signal(rate); 1169 desc->plcp_service = 4; 1170 1171 len += IEEE80211_CRC_LEN; 1172 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1173 flags |= RT2573_TX_OFDM; 1174 1175 plcp_length = len & 0xfff; 1176 desc->plcp_length_hi = plcp_length >> 6; 1177 desc->plcp_length_lo = plcp_length & 0x3f; 1178 } else { 1179 if (rate == 0) 1180 rate = 2; /* avoid division by zero */ 1181 plcp_length = (16 * len + rate - 1) / rate; 1182 if (rate == 22) { 1183 remainder = (16 * len) % 22; 1184 if (remainder != 0 && remainder < 7) 1185 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1186 } 1187 desc->plcp_length_hi = plcp_length >> 8; 1188 desc->plcp_length_lo = plcp_length & 0xff; 1189 1190 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1191 desc->plcp_signal |= 0x08; 1192 } 1193 1194 desc->flags = htole32(flags); 1195 desc->hdrlen = hdrlen; 1196 desc->xflags = xflags; 1197 1198 desc->wme = htole16(RT2573_QID(qid) | 1199 RT2573_AIFSN(wmep->wmep_aifsn) | 1200 RT2573_LOGCWMIN(wmep->wmep_logcwmin) | 1201 RT2573_LOGCWMAX(wmep->wmep_logcwmax)); 1202} 1203 1204static int 1205rum_sendprot(struct rum_softc *sc, 1206 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1207{ 1208 struct ieee80211com *ic = ni->ni_ic; 1209 const struct ieee80211_frame *wh; 1210 struct rum_tx_data *data; 1211 struct mbuf *mprot; 1212 int protrate, pktlen, flags, isshort; 1213 uint16_t dur; 1214 1215 RUM_LOCK_ASSERT(sc); 1216 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1217 ("protection %d", prot)); 1218 1219 wh = mtod(m, const struct ieee80211_frame *); 1220 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1221 1222 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1223 1224 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1225 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1226 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1227 flags = 0; 1228 if (prot == IEEE80211_PROT_RTSCTS) { 1229 /* NB: CTS is the same size as an ACK */ 1230 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1231 flags |= RT2573_TX_NEED_ACK; 1232 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1233 } else { 1234 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1235 } 1236 if (mprot == NULL) { 1237 /* XXX stat + msg */ 1238 return (ENOBUFS); 1239 } 1240 data = STAILQ_FIRST(&sc->tx_free); 1241 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1242 sc->tx_nfree--; 1243 1244 data->m = mprot; 1245 data->ni = ieee80211_ref_node(ni); 1246 data->rate = protrate; 1247 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 0, 1248 mprot->m_pkthdr.len, protrate); 1249 1250 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1251 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1252 1253 return 0; 1254} 1255 1256static uint32_t 1257rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni, 1258 const struct ieee80211_key *k) 1259{ 1260 struct ieee80211vap *vap = ni->ni_vap; 1261 u_int cipher; 1262 uint32_t flags = 0; 1263 uint8_t mode, pos; 1264 1265 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1266 cipher = k->wk_cipher->ic_cipher; 1267 pos = k->wk_keyix; 1268 mode = rum_crypto_mode(sc, cipher, k->wk_keylen); 1269 if (mode == 0) 1270 return 0; 1271 1272 flags |= RT2573_TX_CIP_MODE(mode); 1273 1274 /* Do not trust GROUP flag */ 1275 if (!(k >= &vap->iv_nw_keys[0] && 1276 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) 1277 flags |= RT2573_TX_KEY_PAIR; 1278 else 1279 pos += 0 * RT2573_SKEY_MAX; /* vap id */ 1280 1281 flags |= RT2573_TX_KEY_ID(pos); 1282 1283 if (cipher == IEEE80211_CIPHER_TKIP) 1284 flags |= RT2573_TX_TKIPMIC; 1285 } 1286 1287 return flags; 1288} 1289 1290static int 1291rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1292{ 1293 struct ieee80211vap *vap = ni->ni_vap; 1294 struct ieee80211com *ic = &sc->sc_ic; 1295 struct rum_tx_data *data; 1296 struct ieee80211_frame *wh; 1297 const struct ieee80211_txparam *tp; 1298 struct ieee80211_key *k = NULL; 1299 uint32_t flags = 0; 1300 uint16_t dur; 1301 uint8_t ac, type, xflags = 0; 1302 int hdrlen; 1303 1304 RUM_LOCK_ASSERT(sc); 1305 1306 data = STAILQ_FIRST(&sc->tx_free); 1307 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1308 sc->tx_nfree--; 1309 1310 wh = mtod(m0, struct ieee80211_frame *); 1311 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1312 hdrlen = ieee80211_anyhdrsize(wh); 1313 ac = M_WME_GETAC(m0); 1314 1315 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1316 k = ieee80211_crypto_get_txkey(ni, m0); 1317 if (k == NULL) 1318 return (ENOENT); 1319 1320 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1321 !k->wk_cipher->ic_encap(k, m0)) 1322 return (ENOBUFS); 1323 1324 wh = mtod(m0, struct ieee80211_frame *); 1325 } 1326 1327 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1328 1329 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1330 flags |= RT2573_TX_NEED_ACK; 1331 1332 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1333 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1334 USETW(wh->i_dur, dur); 1335 1336 /* tell hardware to add timestamp for probe responses */ 1337 if (type == IEEE80211_FC0_TYPE_MGT && 1338 (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1339 IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1340 flags |= RT2573_TX_TIMESTAMP; 1341 } 1342 1343 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1344 xflags |= RT2573_TX_HWSEQ; 1345 1346 if (k != NULL) 1347 flags |= rum_tx_crypto_flags(sc, ni, k); 1348 1349 data->m = m0; 1350 data->ni = ni; 1351 data->rate = tp->mgmtrate; 1352 1353 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1354 m0->m_pkthdr.len, tp->mgmtrate); 1355 1356 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1357 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1358 1359 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1360 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1361 1362 return (0); 1363} 1364 1365static int 1366rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1367 const struct ieee80211_bpf_params *params) 1368{ 1369 struct ieee80211com *ic = ni->ni_ic; 1370 struct ieee80211_frame *wh; 1371 struct rum_tx_data *data; 1372 uint32_t flags; 1373 uint8_t ac, type, xflags = 0; 1374 int rate, error; 1375 1376 RUM_LOCK_ASSERT(sc); 1377 1378 wh = mtod(m0, struct ieee80211_frame *); 1379 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1380 1381 ac = params->ibp_pri & 3; 1382 1383 rate = params->ibp_rate0; 1384 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1385 return (EINVAL); 1386 1387 flags = 0; 1388 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1389 flags |= RT2573_TX_NEED_ACK; 1390 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1391 error = rum_sendprot(sc, m0, ni, 1392 params->ibp_flags & IEEE80211_BPF_RTS ? 1393 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1394 rate); 1395 if (error || sc->tx_nfree == 0) 1396 return (ENOBUFS); 1397 1398 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1399 } 1400 1401 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1402 xflags |= RT2573_TX_HWSEQ; 1403 1404 data = STAILQ_FIRST(&sc->tx_free); 1405 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1406 sc->tx_nfree--; 1407 1408 data->m = m0; 1409 data->ni = ni; 1410 data->rate = rate; 1411 1412 /* XXX need to setup descriptor ourself */ 1413 rum_setup_tx_desc(sc, &data->desc, NULL, flags, xflags, ac, 0, 1414 m0->m_pkthdr.len, rate); 1415 1416 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1417 m0->m_pkthdr.len, rate); 1418 1419 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1420 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1421 1422 return 0; 1423} 1424 1425static int 1426rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1427{ 1428 struct ieee80211vap *vap = ni->ni_vap; 1429 struct ieee80211com *ic = &sc->sc_ic; 1430 struct rum_tx_data *data; 1431 struct ieee80211_frame *wh; 1432 const struct ieee80211_txparam *tp; 1433 struct ieee80211_key *k = NULL; 1434 uint32_t flags = 0; 1435 uint16_t dur; 1436 uint8_t ac, type, qos, xflags = 0; 1437 int error, hdrlen, rate; 1438 1439 RUM_LOCK_ASSERT(sc); 1440 1441 wh = mtod(m0, struct ieee80211_frame *); 1442 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 1443 hdrlen = ieee80211_anyhdrsize(wh); 1444 1445 if (IEEE80211_QOS_HAS_SEQ(wh)) 1446 qos = ((const struct ieee80211_qosframe *)wh)->i_qos[0]; 1447 else 1448 qos = 0; 1449 ac = M_WME_GETAC(m0); 1450 1451 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1452 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1453 rate = tp->mcastrate; 1454 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1455 rate = tp->ucastrate; 1456 else 1457 rate = ni->ni_txrate; 1458 1459 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1460 k = ieee80211_crypto_get_txkey(ni, m0); 1461 if (k == NULL) { 1462 m_freem(m0); 1463 return (ENOENT); 1464 } 1465 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1466 !k->wk_cipher->ic_encap(k, m0)) { 1467 m_freem(m0); 1468 return (ENOBUFS); 1469 } 1470 1471 /* packet header may have moved, reset our local pointer */ 1472 wh = mtod(m0, struct ieee80211_frame *); 1473 } 1474 1475 if (type != IEEE80211_FC0_TYPE_CTL && !IEEE80211_QOS_HAS_SEQ(wh)) 1476 xflags |= RT2573_TX_HWSEQ; 1477 1478 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1479 int prot = IEEE80211_PROT_NONE; 1480 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1481 prot = IEEE80211_PROT_RTSCTS; 1482 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1483 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1484 prot = ic->ic_protmode; 1485 if (prot != IEEE80211_PROT_NONE) { 1486 error = rum_sendprot(sc, m0, ni, prot, rate); 1487 if (error || sc->tx_nfree == 0) { 1488 m_freem(m0); 1489 return ENOBUFS; 1490 } 1491 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1492 } 1493 } 1494 1495 if (k != NULL) 1496 flags |= rum_tx_crypto_flags(sc, ni, k); 1497 1498 data = STAILQ_FIRST(&sc->tx_free); 1499 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1500 sc->tx_nfree--; 1501 1502 data->m = m0; 1503 data->ni = ni; 1504 data->rate = rate; 1505 1506 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1507 /* Unicast frame, check if an ACK is expected. */ 1508 if (!qos || (qos & IEEE80211_QOS_ACKPOLICY) != 1509 IEEE80211_QOS_ACKPOLICY_NOACK) 1510 flags |= RT2573_TX_NEED_ACK; 1511 1512 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1513 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1514 USETW(wh->i_dur, dur); 1515 } 1516 1517 rum_setup_tx_desc(sc, &data->desc, k, flags, xflags, ac, hdrlen, 1518 m0->m_pkthdr.len, rate); 1519 1520 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1521 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1522 1523 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1524 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1525 1526 return 0; 1527} 1528 1529static int 1530rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1531{ 1532 struct rum_softc *sc = ic->ic_softc; 1533 int error; 1534 1535 RUM_LOCK(sc); 1536 if (!sc->sc_running) { 1537 RUM_UNLOCK(sc); 1538 return (ENXIO); 1539 } 1540 error = mbufq_enqueue(&sc->sc_snd, m); 1541 if (error) { 1542 RUM_UNLOCK(sc); 1543 return (error); 1544 } 1545 rum_start(sc); 1546 RUM_UNLOCK(sc); 1547 1548 return (0); 1549} 1550 1551static void 1552rum_start(struct rum_softc *sc) 1553{ 1554 struct ieee80211_node *ni; 1555 struct mbuf *m; 1556 1557 RUM_LOCK_ASSERT(sc); 1558 1559 if (!sc->sc_running) 1560 return; 1561 1562 while (sc->tx_nfree >= RUM_TX_MINFREE && 1563 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1564 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1565 if (rum_tx_data(sc, m, ni) != 0) { 1566 if_inc_counter(ni->ni_vap->iv_ifp, 1567 IFCOUNTER_OERRORS, 1); 1568 ieee80211_free_node(ni); 1569 break; 1570 } 1571 } 1572} 1573 1574static void 1575rum_parent(struct ieee80211com *ic) 1576{ 1577 struct rum_softc *sc = ic->ic_softc; 1578 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1579 1580 RUM_LOCK(sc); 1581 if (sc->sc_detached) { 1582 RUM_UNLOCK(sc); 1583 return; 1584 } 1585 RUM_UNLOCK(sc); 1586 1587 if (ic->ic_nrunning > 0) { 1588 if (rum_init(sc) == 0) 1589 ieee80211_start_all(ic); 1590 else 1591 ieee80211_stop(vap); 1592 } else 1593 rum_stop(sc); 1594} 1595 1596static void 1597rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1598{ 1599 struct usb_device_request req; 1600 usb_error_t error; 1601 1602 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1603 req.bRequest = RT2573_READ_EEPROM; 1604 USETW(req.wValue, 0); 1605 USETW(req.wIndex, addr); 1606 USETW(req.wLength, len); 1607 1608 error = rum_do_request(sc, &req, buf); 1609 if (error != 0) { 1610 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1611 usbd_errstr(error)); 1612 } 1613} 1614 1615static uint32_t 1616rum_read(struct rum_softc *sc, uint16_t reg) 1617{ 1618 uint32_t val; 1619 1620 rum_read_multi(sc, reg, &val, sizeof val); 1621 1622 return le32toh(val); 1623} 1624 1625static void 1626rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1627{ 1628 struct usb_device_request req; 1629 usb_error_t error; 1630 1631 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1632 req.bRequest = RT2573_READ_MULTI_MAC; 1633 USETW(req.wValue, 0); 1634 USETW(req.wIndex, reg); 1635 USETW(req.wLength, len); 1636 1637 error = rum_do_request(sc, &req, buf); 1638 if (error != 0) { 1639 device_printf(sc->sc_dev, 1640 "could not multi read MAC register: %s\n", 1641 usbd_errstr(error)); 1642 } 1643} 1644 1645static usb_error_t 1646rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1647{ 1648 uint32_t tmp = htole32(val); 1649 1650 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1651} 1652 1653static usb_error_t 1654rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1655{ 1656 struct usb_device_request req; 1657 usb_error_t error; 1658 size_t offset; 1659 1660 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1661 req.bRequest = RT2573_WRITE_MULTI_MAC; 1662 USETW(req.wValue, 0); 1663 1664 /* write at most 64 bytes at a time */ 1665 for (offset = 0; offset < len; offset += 64) { 1666 USETW(req.wIndex, reg + offset); 1667 USETW(req.wLength, MIN(len - offset, 64)); 1668 1669 error = rum_do_request(sc, &req, (char *)buf + offset); 1670 if (error != 0) { 1671 device_printf(sc->sc_dev, 1672 "could not multi write MAC register: %s\n", 1673 usbd_errstr(error)); 1674 return (error); 1675 } 1676 } 1677 1678 return (USB_ERR_NORMAL_COMPLETION); 1679} 1680 1681static usb_error_t 1682rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1683{ 1684 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1685} 1686 1687static usb_error_t 1688rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1689{ 1690 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1691} 1692 1693static usb_error_t 1694rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1695{ 1696 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1697} 1698 1699static int 1700rum_bbp_busy(struct rum_softc *sc) 1701{ 1702 int ntries; 1703 1704 for (ntries = 0; ntries < 100; ntries++) { 1705 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1706 break; 1707 if (rum_pause(sc, hz / 100)) 1708 break; 1709 } 1710 if (ntries == 100) 1711 return (ETIMEDOUT); 1712 1713 return (0); 1714} 1715 1716static void 1717rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1718{ 1719 uint32_t tmp; 1720 1721 DPRINTFN(2, "reg=0x%08x\n", reg); 1722 1723 if (rum_bbp_busy(sc) != 0) { 1724 device_printf(sc->sc_dev, "could not write to BBP\n"); 1725 return; 1726 } 1727 1728 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1729 rum_write(sc, RT2573_PHY_CSR3, tmp); 1730} 1731 1732static uint8_t 1733rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1734{ 1735 uint32_t val; 1736 int ntries; 1737 1738 DPRINTFN(2, "reg=0x%08x\n", reg); 1739 1740 if (rum_bbp_busy(sc) != 0) { 1741 device_printf(sc->sc_dev, "could not read BBP\n"); 1742 return 0; 1743 } 1744 1745 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1746 rum_write(sc, RT2573_PHY_CSR3, val); 1747 1748 for (ntries = 0; ntries < 100; ntries++) { 1749 val = rum_read(sc, RT2573_PHY_CSR3); 1750 if (!(val & RT2573_BBP_BUSY)) 1751 return val & 0xff; 1752 if (rum_pause(sc, hz / 100)) 1753 break; 1754 } 1755 1756 device_printf(sc->sc_dev, "could not read BBP\n"); 1757 return 0; 1758} 1759 1760static void 1761rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1762{ 1763 uint32_t tmp; 1764 int ntries; 1765 1766 for (ntries = 0; ntries < 100; ntries++) { 1767 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1768 break; 1769 if (rum_pause(sc, hz / 100)) 1770 break; 1771 } 1772 if (ntries == 100) { 1773 device_printf(sc->sc_dev, "could not write to RF\n"); 1774 return; 1775 } 1776 1777 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1778 (reg & 3); 1779 rum_write(sc, RT2573_PHY_CSR4, tmp); 1780 1781 /* remember last written value in sc */ 1782 sc->rf_regs[reg] = val; 1783 1784 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1785} 1786 1787static void 1788rum_select_antenna(struct rum_softc *sc) 1789{ 1790 uint8_t bbp4, bbp77; 1791 uint32_t tmp; 1792 1793 bbp4 = rum_bbp_read(sc, 4); 1794 bbp77 = rum_bbp_read(sc, 77); 1795 1796 /* TBD */ 1797 1798 /* make sure Rx is disabled before switching antenna */ 1799 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1800 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1801 1802 rum_bbp_write(sc, 4, bbp4); 1803 rum_bbp_write(sc, 77, bbp77); 1804 1805 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1806} 1807 1808/* 1809 * Enable multi-rate retries for frames sent at OFDM rates. 1810 * In 802.11b/g mode, allow fallback to CCK rates. 1811 */ 1812static void 1813rum_enable_mrr(struct rum_softc *sc) 1814{ 1815 struct ieee80211com *ic = &sc->sc_ic; 1816 1817 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1818 rum_setbits(sc, RT2573_TXRX_CSR4, 1819 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1820 } else { 1821 rum_modbits(sc, RT2573_TXRX_CSR4, 1822 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1823 } 1824} 1825 1826static void 1827rum_set_txpreamble(struct rum_softc *sc) 1828{ 1829 struct ieee80211com *ic = &sc->sc_ic; 1830 1831 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1832 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1833 else 1834 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1835} 1836 1837static void 1838rum_set_basicrates(struct rum_softc *sc) 1839{ 1840 struct ieee80211com *ic = &sc->sc_ic; 1841 1842 /* update basic rate set */ 1843 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1844 /* 11b basic rates: 1, 2Mbps */ 1845 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1846 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1847 /* 11a basic rates: 6, 12, 24Mbps */ 1848 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1849 } else { 1850 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1851 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1852 } 1853} 1854 1855/* 1856 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1857 * driver. 1858 */ 1859static void 1860rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1861{ 1862 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1863 1864 /* update all BBP registers that depend on the band */ 1865 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1866 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1867 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1868 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1869 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1870 } 1871 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1872 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1873 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1874 } 1875 1876 sc->bbp17 = bbp17; 1877 rum_bbp_write(sc, 17, bbp17); 1878 rum_bbp_write(sc, 96, bbp96); 1879 rum_bbp_write(sc, 104, bbp104); 1880 1881 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1882 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1883 rum_bbp_write(sc, 75, 0x80); 1884 rum_bbp_write(sc, 86, 0x80); 1885 rum_bbp_write(sc, 88, 0x80); 1886 } 1887 1888 rum_bbp_write(sc, 35, bbp35); 1889 rum_bbp_write(sc, 97, bbp97); 1890 rum_bbp_write(sc, 98, bbp98); 1891 1892 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1893 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1894 RT2573_PA_PE_5GHZ); 1895 } else { 1896 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1897 RT2573_PA_PE_2GHZ); 1898 } 1899} 1900 1901static void 1902rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1903{ 1904 struct ieee80211com *ic = &sc->sc_ic; 1905 const struct rfprog *rfprog; 1906 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1907 int8_t power; 1908 int i, chan; 1909 1910 chan = ieee80211_chan2ieee(ic, c); 1911 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1912 return; 1913 1914 /* select the appropriate RF settings based on what EEPROM says */ 1915 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1916 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1917 1918 /* find the settings for this channel (we know it exists) */ 1919 for (i = 0; rfprog[i].chan != chan; i++); 1920 1921 power = sc->txpow[i]; 1922 if (power < 0) { 1923 bbp94 += power; 1924 power = 0; 1925 } else if (power > 31) { 1926 bbp94 += power - 31; 1927 power = 31; 1928 } 1929 1930 /* 1931 * If we are switching from the 2GHz band to the 5GHz band or 1932 * vice-versa, BBP registers need to be reprogrammed. 1933 */ 1934 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1935 rum_select_band(sc, c); 1936 rum_select_antenna(sc); 1937 } 1938 ic->ic_curchan = c; 1939 1940 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1941 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1942 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1943 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1944 1945 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1946 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1947 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1948 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1949 1950 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1951 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1952 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1953 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1954 1955 rum_pause(sc, hz / 100); 1956 1957 /* enable smart mode for MIMO-capable RFs */ 1958 bbp3 = rum_bbp_read(sc, 3); 1959 1960 bbp3 &= ~RT2573_SMART_MODE; 1961 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1962 bbp3 |= RT2573_SMART_MODE; 1963 1964 rum_bbp_write(sc, 3, bbp3); 1965 1966 if (bbp94 != RT2573_BBPR94_DEFAULT) 1967 rum_bbp_write(sc, 94, bbp94); 1968 1969 /* give the chip some extra time to do the switchover */ 1970 rum_pause(sc, hz / 100); 1971} 1972 1973static void 1974rum_set_maxretry(struct rum_softc *sc, struct ieee80211vap *vap) 1975{ 1976 const struct ieee80211_txparam *tp; 1977 struct ieee80211_node *ni = vap->iv_bss; 1978 struct rum_vap *rvp = RUM_VAP(vap); 1979 1980 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1981 rvp->maxretry = tp->maxretry < 0xf ? tp->maxretry : 0xf; 1982 1983 rum_modbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_RETRY(rvp->maxretry) | 1984 RT2573_LONG_RETRY(rvp->maxretry), 1985 RT2573_SHORT_RETRY_MASK | RT2573_LONG_RETRY_MASK); 1986} 1987 1988/* 1989 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1990 * and HostAP operating modes. 1991 */ 1992static int 1993rum_enable_tsf_sync(struct rum_softc *sc) 1994{ 1995 struct ieee80211com *ic = &sc->sc_ic; 1996 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1997 uint32_t tmp; 1998 1999 if (vap->iv_opmode != IEEE80211_M_STA) { 2000 /* 2001 * Change default 16ms TBTT adjustment to 8ms. 2002 * Must be done before enabling beacon generation. 2003 */ 2004 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 2005 return EIO; 2006 } 2007 2008 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 2009 2010 /* set beacon interval (in 1/16ms unit) */ 2011 tmp |= vap->iv_bss->ni_intval * 16; 2012 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 2013 2014 switch (vap->iv_opmode) { 2015 case IEEE80211_M_STA: 2016 /* 2017 * Local TSF is always updated with remote TSF on beacon 2018 * reception. 2019 */ 2020 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 2021 break; 2022 case IEEE80211_M_IBSS: 2023 /* 2024 * Local TSF is updated with remote TSF on beacon reception 2025 * only if the remote TSF is greater than local TSF. 2026 */ 2027 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 2028 tmp |= RT2573_BCN_TX_EN; 2029 break; 2030 case IEEE80211_M_HOSTAP: 2031 /* SYNC with nobody */ 2032 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 2033 tmp |= RT2573_BCN_TX_EN; 2034 break; 2035 default: 2036 device_printf(sc->sc_dev, 2037 "Enabling TSF failed. undefined opmode %d\n", 2038 vap->iv_opmode); 2039 return EINVAL; 2040 } 2041 2042 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 2043 return EIO; 2044 2045 return 0; 2046} 2047 2048static void 2049rum_enable_tsf(struct rum_softc *sc) 2050{ 2051 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 2052 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 2053} 2054 2055static void 2056rum_abort_tsf_sync(struct rum_softc *sc) 2057{ 2058 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 2059} 2060 2061static void 2062rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 2063{ 2064 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 2065} 2066 2067static void 2068rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id) 2069{ 2070 struct ieee80211com *ic = &sc->sc_ic; 2071 uint8_t slottime; 2072 2073 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 2074 2075 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 2076 2077 DPRINTF("setting slot time to %uus\n", slottime); 2078} 2079 2080static void 2081rum_update_slot(struct ieee80211com *ic) 2082{ 2083 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb); 2084} 2085 2086static void 2087rum_wme_update_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id) 2088{ 2089 struct ieee80211com *ic = &sc->sc_ic; 2090 const struct wmeParams *chanp = 2091 ic->ic_wme.wme_chanParams.cap_wmeParams; 2092 int error = 0; 2093 2094 error = rum_write(sc, RT2573_AIFSN_CSR, 2095 chanp[WME_AC_VO].wmep_aifsn << 12 | 2096 chanp[WME_AC_VI].wmep_aifsn << 8 | 2097 chanp[WME_AC_BK].wmep_aifsn << 4 | 2098 chanp[WME_AC_BE].wmep_aifsn); 2099 if (error) 2100 goto print_err; 2101 error = rum_write(sc, RT2573_CWMIN_CSR, 2102 chanp[WME_AC_VO].wmep_logcwmin << 12 | 2103 chanp[WME_AC_VI].wmep_logcwmin << 8 | 2104 chanp[WME_AC_BK].wmep_logcwmin << 4 | 2105 chanp[WME_AC_BE].wmep_logcwmin); 2106 if (error) 2107 goto print_err; 2108 error = rum_write(sc, RT2573_CWMAX_CSR, 2109 chanp[WME_AC_VO].wmep_logcwmax << 12 | 2110 chanp[WME_AC_VI].wmep_logcwmax << 8 | 2111 chanp[WME_AC_BK].wmep_logcwmax << 4 | 2112 chanp[WME_AC_BE].wmep_logcwmax); 2113 if (error) 2114 goto print_err; 2115 error = rum_write(sc, RT2573_TXOP01_CSR, 2116 chanp[WME_AC_BK].wmep_txopLimit << 16 | 2117 chanp[WME_AC_BE].wmep_txopLimit); 2118 if (error) 2119 goto print_err; 2120 error = rum_write(sc, RT2573_TXOP23_CSR, 2121 chanp[WME_AC_VO].wmep_txopLimit << 16 | 2122 chanp[WME_AC_VI].wmep_txopLimit); 2123 if (error) 2124 goto print_err; 2125 2126 memcpy(sc->wme_params, chanp, sizeof(*chanp) * WME_NUM_AC); 2127 2128 return; 2129 2130print_err: 2131 device_printf(sc->sc_dev, "%s: WME update failed, error %d\n", 2132 __func__, error); 2133} 2134 2135static int 2136rum_wme_update(struct ieee80211com *ic) 2137{ 2138 struct rum_softc *sc = ic->ic_softc; 2139 2140 rum_cmd_sleepable(sc, NULL, 0, 0, rum_wme_update_cb); 2141 2142 return (0); 2143} 2144 2145static void 2146rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 2147{ 2148 2149 rum_write(sc, RT2573_MAC_CSR4, 2150 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 2151 rum_write(sc, RT2573_MAC_CSR5, 2152 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 2153} 2154 2155static void 2156rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 2157{ 2158 2159 rum_write(sc, RT2573_MAC_CSR2, 2160 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 2161 rum_write(sc, RT2573_MAC_CSR3, 2162 addr[4] | addr[5] << 8 | 0xff << 16); 2163} 2164 2165static void 2166rum_setpromisc(struct rum_softc *sc) 2167{ 2168 struct ieee80211com *ic = &sc->sc_ic; 2169 2170 if (ic->ic_promisc == 0) 2171 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2172 else 2173 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2174 2175 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 2176 "entering" : "leaving"); 2177} 2178 2179static void 2180rum_update_promisc(struct ieee80211com *ic) 2181{ 2182 struct rum_softc *sc = ic->ic_softc; 2183 2184 RUM_LOCK(sc); 2185 if (sc->sc_running) 2186 rum_setpromisc(sc); 2187 RUM_UNLOCK(sc); 2188} 2189 2190static void 2191rum_update_mcast(struct ieee80211com *ic) 2192{ 2193 /* Ignore. */ 2194} 2195 2196static const char * 2197rum_get_rf(int rev) 2198{ 2199 switch (rev) { 2200 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 2201 case RT2573_RF_2528: return "RT2528"; 2202 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 2203 case RT2573_RF_5226: return "RT5226"; 2204 default: return "unknown"; 2205 } 2206} 2207 2208static void 2209rum_read_eeprom(struct rum_softc *sc) 2210{ 2211 uint16_t val; 2212#ifdef RUM_DEBUG 2213 int i; 2214#endif 2215 2216 /* read MAC address */ 2217 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 2218 2219 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 2220 val = le16toh(val); 2221 sc->rf_rev = (val >> 11) & 0x1f; 2222 sc->hw_radio = (val >> 10) & 0x1; 2223 sc->rx_ant = (val >> 4) & 0x3; 2224 sc->tx_ant = (val >> 2) & 0x3; 2225 sc->nb_ant = val & 0x3; 2226 2227 DPRINTF("RF revision=%d\n", sc->rf_rev); 2228 2229 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 2230 val = le16toh(val); 2231 sc->ext_5ghz_lna = (val >> 6) & 0x1; 2232 sc->ext_2ghz_lna = (val >> 4) & 0x1; 2233 2234 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 2235 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 2236 2237 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 2238 val = le16toh(val); 2239 if ((val & 0xff) != 0xff) 2240 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 2241 2242 /* Only [-10, 10] is valid */ 2243 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 2244 sc->rssi_2ghz_corr = 0; 2245 2246 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 2247 val = le16toh(val); 2248 if ((val & 0xff) != 0xff) 2249 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 2250 2251 /* Only [-10, 10] is valid */ 2252 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 2253 sc->rssi_5ghz_corr = 0; 2254 2255 if (sc->ext_2ghz_lna) 2256 sc->rssi_2ghz_corr -= 14; 2257 if (sc->ext_5ghz_lna) 2258 sc->rssi_5ghz_corr -= 14; 2259 2260 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2261 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2262 2263 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2264 val = le16toh(val); 2265 if ((val & 0xff) != 0xff) 2266 sc->rffreq = val & 0xff; 2267 2268 DPRINTF("RF freq=%d\n", sc->rffreq); 2269 2270 /* read Tx power for all a/b/g channels */ 2271 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2272 /* XXX default Tx power for 802.11a channels */ 2273 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2274#ifdef RUM_DEBUG 2275 for (i = 0; i < 14; i++) 2276 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2277#endif 2278 2279 /* read default values for BBP registers */ 2280 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2281#ifdef RUM_DEBUG 2282 for (i = 0; i < 14; i++) { 2283 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2284 continue; 2285 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2286 sc->bbp_prom[i].val); 2287 } 2288#endif 2289} 2290 2291static int 2292rum_bbp_wakeup(struct rum_softc *sc) 2293{ 2294 unsigned int ntries; 2295 2296 for (ntries = 0; ntries < 100; ntries++) { 2297 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2298 break; 2299 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2300 if (rum_pause(sc, hz / 100)) 2301 break; 2302 } 2303 if (ntries == 100) { 2304 device_printf(sc->sc_dev, 2305 "timeout waiting for BBP/RF to wakeup\n"); 2306 return (ETIMEDOUT); 2307 } 2308 2309 return (0); 2310} 2311 2312static int 2313rum_bbp_init(struct rum_softc *sc) 2314{ 2315 int i, ntries; 2316 2317 /* wait for BBP to be ready */ 2318 for (ntries = 0; ntries < 100; ntries++) { 2319 const uint8_t val = rum_bbp_read(sc, 0); 2320 if (val != 0 && val != 0xff) 2321 break; 2322 if (rum_pause(sc, hz / 100)) 2323 break; 2324 } 2325 if (ntries == 100) { 2326 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2327 return EIO; 2328 } 2329 2330 /* initialize BBP registers to default values */ 2331 for (i = 0; i < nitems(rum_def_bbp); i++) 2332 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2333 2334 /* write vendor-specific BBP values (from EEPROM) */ 2335 for (i = 0; i < 16; i++) { 2336 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2337 continue; 2338 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2339 } 2340 2341 return 0; 2342} 2343 2344static void 2345rum_clr_shkey_regs(struct rum_softc *sc) 2346{ 2347 rum_write(sc, RT2573_SEC_CSR0, 0); 2348 rum_write(sc, RT2573_SEC_CSR1, 0); 2349 rum_write(sc, RT2573_SEC_CSR5, 0); 2350} 2351 2352static int 2353rum_init(struct rum_softc *sc) 2354{ 2355 struct ieee80211com *ic = &sc->sc_ic; 2356 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2357 uint32_t tmp; 2358 int i, ret; 2359 2360 RUM_LOCK(sc); 2361 if (sc->sc_running) { 2362 ret = 0; 2363 goto end; 2364 } 2365 2366 /* initialize MAC registers to default values */ 2367 for (i = 0; i < nitems(rum_def_mac); i++) 2368 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2369 2370 /* reset some WME parameters to default values */ 2371 sc->wme_params[0].wmep_aifsn = 2; 2372 sc->wme_params[0].wmep_logcwmin = 4; 2373 sc->wme_params[0].wmep_logcwmax = 10; 2374 2375 /* set host ready */ 2376 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2377 rum_write(sc, RT2573_MAC_CSR1, 0); 2378 2379 /* wait for BBP/RF to wakeup */ 2380 if ((ret = rum_bbp_wakeup(sc)) != 0) 2381 goto end; 2382 2383 if ((ret = rum_bbp_init(sc)) != 0) 2384 goto end; 2385 2386 /* select default channel */ 2387 rum_select_band(sc, ic->ic_curchan); 2388 rum_select_antenna(sc); 2389 rum_set_chan(sc, ic->ic_curchan); 2390 2391 /* clear STA registers */ 2392 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2393 2394 /* clear security registers (if required) */ 2395 if (sc->sc_clr_shkeys == 0) { 2396 rum_clr_shkey_regs(sc); 2397 sc->sc_clr_shkeys = 1; 2398 } 2399 2400 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2401 2402 /* initialize ASIC */ 2403 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2404 2405 /* 2406 * Allocate Tx and Rx xfer queues. 2407 */ 2408 rum_setup_tx_list(sc); 2409 2410 /* update Rx filter */ 2411 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2412 2413 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2414 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2415 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2416 RT2573_DROP_ACKCTS; 2417 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2418 tmp |= RT2573_DROP_TODS; 2419 if (ic->ic_promisc == 0) 2420 tmp |= RT2573_DROP_NOT_TO_ME; 2421 } 2422 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2423 2424 sc->sc_running = 1; 2425 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2426 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2427 2428end: RUM_UNLOCK(sc); 2429 2430 if (ret != 0) 2431 rum_stop(sc); 2432 2433 return ret; 2434} 2435 2436static void 2437rum_stop(struct rum_softc *sc) 2438{ 2439 2440 RUM_LOCK(sc); 2441 if (!sc->sc_running) { 2442 RUM_UNLOCK(sc); 2443 return; 2444 } 2445 sc->sc_running = 0; 2446 RUM_UNLOCK(sc); 2447 2448 /* 2449 * Drain the USB transfers, if not already drained: 2450 */ 2451 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2452 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2453 2454 RUM_LOCK(sc); 2455 rum_unsetup_tx_list(sc); 2456 2457 /* disable Rx */ 2458 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2459 2460 /* reset ASIC */ 2461 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2462 rum_write(sc, RT2573_MAC_CSR1, 0); 2463 RUM_UNLOCK(sc); 2464} 2465 2466static void 2467rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2468{ 2469 struct usb_device_request req; 2470 uint16_t reg = RT2573_MCU_CODE_BASE; 2471 usb_error_t err; 2472 2473 /* copy firmware image into NIC */ 2474 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2475 err = rum_write(sc, reg, UGETDW(ucode)); 2476 if (err) { 2477 /* firmware already loaded ? */ 2478 device_printf(sc->sc_dev, "Firmware load " 2479 "failure! (ignored)\n"); 2480 break; 2481 } 2482 } 2483 2484 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2485 req.bRequest = RT2573_MCU_CNTL; 2486 USETW(req.wValue, RT2573_MCU_RUN); 2487 USETW(req.wIndex, 0); 2488 USETW(req.wLength, 0); 2489 2490 err = rum_do_request(sc, &req, NULL); 2491 if (err != 0) { 2492 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2493 usbd_errstr(err)); 2494 } 2495 2496 /* give the chip some time to boot */ 2497 rum_pause(sc, hz / 8); 2498} 2499 2500static int 2501rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2502{ 2503 struct ieee80211com *ic = vap->iv_ic; 2504 struct rum_vap *rvp = RUM_VAP(vap); 2505 struct mbuf *m = rvp->bcn_mbuf; 2506 const struct ieee80211_txparam *tp; 2507 struct rum_tx_desc desc; 2508 2509 RUM_LOCK_ASSERT(sc); 2510 2511 if (m == NULL) 2512 return EINVAL; 2513 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2514 return EINVAL; 2515 2516 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2517 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP, 2518 RT2573_TX_HWSEQ, 0, 0, m->m_pkthdr.len, tp->mgmtrate); 2519 2520 /* copy the Tx descriptor into NIC memory */ 2521 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2522 RT2573_TX_DESC_SIZE) != 0) 2523 return EIO; 2524 2525 /* copy beacon header and payload into NIC memory */ 2526 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2527 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2528 return EIO; 2529 2530 return 0; 2531} 2532 2533static int 2534rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2535{ 2536 struct rum_vap *rvp = RUM_VAP(vap); 2537 struct ieee80211_node *ni = vap->iv_bss; 2538 struct mbuf *m; 2539 2540 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2541 return EINVAL; 2542 2543 m = ieee80211_beacon_alloc(ni); 2544 if (m == NULL) 2545 return ENOMEM; 2546 2547 if (rvp->bcn_mbuf != NULL) 2548 m_freem(rvp->bcn_mbuf); 2549 2550 rvp->bcn_mbuf = m; 2551 2552 return (rum_set_beacon(sc, vap)); 2553} 2554 2555static void 2556rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data, 2557 uint8_t rvp_id) 2558{ 2559 struct ieee80211vap *vap = data->vap; 2560 2561 rum_set_beacon(sc, vap); 2562} 2563 2564static void 2565rum_update_beacon(struct ieee80211vap *vap, int item) 2566{ 2567 struct ieee80211com *ic = vap->iv_ic; 2568 struct rum_softc *sc = ic->ic_softc; 2569 struct rum_vap *rvp = RUM_VAP(vap); 2570 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 2571 struct ieee80211_node *ni = vap->iv_bss; 2572 struct mbuf *m = rvp->bcn_mbuf; 2573 int mcast = 0; 2574 2575 RUM_LOCK(sc); 2576 if (m == NULL) { 2577 m = ieee80211_beacon_alloc(ni); 2578 if (m == NULL) { 2579 device_printf(sc->sc_dev, 2580 "%s: could not allocate beacon frame\n", __func__); 2581 RUM_UNLOCK(sc); 2582 return; 2583 } 2584 rvp->bcn_mbuf = m; 2585 } 2586 2587 switch (item) { 2588 case IEEE80211_BEACON_ERP: 2589 rum_update_slot(ic); 2590 break; 2591 case IEEE80211_BEACON_TIM: 2592 mcast = 1; /*TODO*/ 2593 break; 2594 default: 2595 break; 2596 } 2597 RUM_UNLOCK(sc); 2598 2599 setbit(bo->bo_flags, item); 2600 ieee80211_beacon_update(ni, m, mcast); 2601 2602 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb); 2603} 2604 2605static int 2606rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k, 2607 uint16_t base) 2608{ 2609 2610 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen)) 2611 return EIO; 2612 2613 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) { 2614 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE, 2615 k->wk_txmic, 8)) 2616 return EIO; 2617 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8, 2618 k->wk_rxmic, 8)) 2619 return EIO; 2620 } 2621 2622 return 0; 2623} 2624 2625static void 2626rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data, 2627 uint8_t rvp_id) 2628{ 2629 struct ieee80211_key *k = &data->key; 2630 uint8_t mode; 2631 2632 if (sc->sc_clr_shkeys == 0) { 2633 rum_clr_shkey_regs(sc); 2634 sc->sc_clr_shkeys = 1; 2635 } 2636 2637 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2638 if (mode == 0) 2639 goto print_err; 2640 2641 DPRINTFN(1, "setting group key %d for vap %d, mode %d " 2642 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2643 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2644 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2645 2646 /* Install the key. */ 2647 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0) 2648 goto print_err; 2649 2650 /* Set cipher mode. */ 2651 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2652 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX, 2653 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX) 2654 != 0) 2655 goto print_err; 2656 2657 /* Mark this key as valid. */ 2658 if (rum_setbits(sc, RT2573_SEC_CSR0, 2659 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0) 2660 goto print_err; 2661 2662 return; 2663 2664print_err: 2665 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n", 2666 __func__, k->wk_keyix, rvp_id); 2667} 2668 2669static void 2670rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data, 2671 uint8_t rvp_id) 2672{ 2673 struct ieee80211_key *k = &data->key; 2674 2675 DPRINTF("%s: removing group key %d for vap %d\n", __func__, 2676 k->wk_keyix, rvp_id); 2677 rum_clrbits(sc, 2678 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2679 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX); 2680 rum_clrbits(sc, RT2573_SEC_CSR0, 2681 rvp_id * RT2573_SKEY_MAX + k->wk_keyix); 2682} 2683 2684static void 2685rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data, 2686 uint8_t rvp_id) 2687{ 2688 struct ieee80211_key *k = &data->key; 2689 uint8_t buf[IEEE80211_ADDR_LEN + 1]; 2690 uint8_t mode; 2691 2692 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2693 if (mode == 0) 2694 goto print_err; 2695 2696 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d " 2697 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2698 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2699 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2700 2701 /* Install the key. */ 2702 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0) 2703 goto print_err; 2704 2705 IEEE80211_ADDR_COPY(buf, k->wk_macaddr); 2706 buf[IEEE80211_ADDR_LEN] = mode; 2707 2708 /* Set transmitter address and cipher mode. */ 2709 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix), 2710 buf, sizeof buf) != 0) 2711 goto print_err; 2712 2713 /* Enable key table lookup for this vap. */ 2714 if (sc->vap_key_count[rvp_id]++ == 0) 2715 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0) 2716 goto print_err; 2717 2718 /* Mark this key as valid. */ 2719 if (rum_setbits(sc, 2720 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2721 1 << (k->wk_keyix % 32)) != 0) 2722 goto print_err; 2723 2724 return; 2725 2726print_err: 2727 device_printf(sc->sc_dev, 2728 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix, 2729 rvp_id); 2730} 2731 2732static void 2733rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data, 2734 uint8_t rvp_id) 2735{ 2736 struct ieee80211_key *k = &data->key; 2737 2738 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix); 2739 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2740 1 << (k->wk_keyix % 32)); 2741 sc->keys_bmap &= ~(1 << k->wk_keyix); 2742 if (--sc->vap_key_count[rvp_id] == 0) 2743 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id); 2744} 2745 2746static int 2747rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 2748 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 2749{ 2750 struct rum_softc *sc = vap->iv_ic->ic_softc; 2751 uint8_t i; 2752 2753 if (!(&vap->iv_nw_keys[0] <= k && 2754 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 2755 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 2756 RUM_LOCK(sc); 2757 for (i = 0; i < RT2573_ADDR_MAX; i++) { 2758 if ((sc->keys_bmap & (1 << i)) == 0) { 2759 sc->keys_bmap |= 1 << i; 2760 *keyix = i; 2761 break; 2762 } 2763 } 2764 RUM_UNLOCK(sc); 2765 if (i == RT2573_ADDR_MAX) { 2766 device_printf(sc->sc_dev, 2767 "%s: no free space in the key table\n", 2768 __func__); 2769 return 0; 2770 } 2771 } else 2772 *keyix = 0; 2773 } else { 2774 *keyix = k - vap->iv_nw_keys; 2775 } 2776 *rxkeyix = *keyix; 2777 return 1; 2778} 2779 2780static int 2781rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k) 2782{ 2783 struct rum_softc *sc = vap->iv_ic->ic_softc; 2784 int group; 2785 2786 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 2787 /* Not for us. */ 2788 return 1; 2789 } 2790 2791 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 2792 2793 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 2794 group ? rum_group_key_set_cb : rum_pair_key_set_cb); 2795} 2796 2797static int 2798rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 2799{ 2800 struct rum_softc *sc = vap->iv_ic->ic_softc; 2801 int group; 2802 2803 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 2804 /* Not for us. */ 2805 return 1; 2806 } 2807 2808 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 2809 2810 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 2811 group ? rum_group_key_del_cb : rum_pair_key_del_cb); 2812} 2813 2814static int 2815rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2816 const struct ieee80211_bpf_params *params) 2817{ 2818 struct rum_softc *sc = ni->ni_ic->ic_softc; 2819 int ret; 2820 2821 RUM_LOCK(sc); 2822 /* prevent management frames from being sent if we're not ready */ 2823 if (!sc->sc_running) { 2824 ret = ENETDOWN; 2825 goto bad; 2826 } 2827 if (sc->tx_nfree < RUM_TX_MINFREE) { 2828 ret = EIO; 2829 goto bad; 2830 } 2831 2832 if (params == NULL) { 2833 /* 2834 * Legacy path; interpret frame contents to decide 2835 * precisely how to send the frame. 2836 */ 2837 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 2838 goto bad; 2839 } else { 2840 /* 2841 * Caller supplied explicit parameters to use in 2842 * sending the frame. 2843 */ 2844 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 2845 goto bad; 2846 } 2847 RUM_UNLOCK(sc); 2848 2849 return 0; 2850bad: 2851 RUM_UNLOCK(sc); 2852 m_freem(m); 2853 return ret; 2854} 2855 2856static void 2857rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2858{ 2859 struct ieee80211vap *vap = ni->ni_vap; 2860 struct rum_vap *rvp = RUM_VAP(vap); 2861 2862 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2863 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2864 2865 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2866} 2867 2868static void 2869rum_ratectl_timeout(void *arg) 2870{ 2871 struct rum_vap *rvp = arg; 2872 struct ieee80211vap *vap = &rvp->vap; 2873 struct ieee80211com *ic = vap->iv_ic; 2874 2875 ieee80211_runtask(ic, &rvp->ratectl_task); 2876} 2877 2878static void 2879rum_ratectl_task(void *arg, int pending) 2880{ 2881 struct rum_vap *rvp = arg; 2882 struct ieee80211vap *vap = &rvp->vap; 2883 struct rum_softc *sc = vap->iv_ic->ic_softc; 2884 struct ieee80211_node *ni; 2885 int ok[3], fail; 2886 int sum, success, retrycnt; 2887 2888 RUM_LOCK(sc); 2889 /* read and clear statistic registers (STA_CSR0 to STA_CSR5) */ 2890 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2891 2892 ok[0] = (le32toh(sc->sta[4]) & 0xffff); /* TX ok w/o retry */ 2893 ok[1] = (le32toh(sc->sta[4]) >> 16); /* TX ok w/ one retry */ 2894 ok[2] = (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ multiple retries */ 2895 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2896 2897 success = ok[0] + ok[1] + ok[2]; 2898 sum = success + fail; 2899 /* XXX at least */ 2900 retrycnt = ok[1] + ok[2] * 2 + fail * (rvp->maxretry + 1); 2901 2902 if (sum != 0) { 2903 ni = ieee80211_ref_node(vap->iv_bss); 2904 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2905 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2906 ieee80211_free_node(ni); 2907 } 2908 2909 /* count TX retry-fail as Tx errors */ 2910 if_inc_counter(vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2911 2912 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2913 RUM_UNLOCK(sc); 2914} 2915 2916static void 2917rum_scan_start(struct ieee80211com *ic) 2918{ 2919 struct rum_softc *sc = ic->ic_softc; 2920 2921 RUM_LOCK(sc); 2922 rum_abort_tsf_sync(sc); 2923 rum_set_bssid(sc, ieee80211broadcastaddr); 2924 RUM_UNLOCK(sc); 2925 2926} 2927 2928static void 2929rum_scan_end(struct ieee80211com *ic) 2930{ 2931 struct rum_softc *sc = ic->ic_softc; 2932 2933 RUM_LOCK(sc); 2934 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 2935 rum_enable_tsf_sync(sc); 2936 else 2937 rum_enable_tsf(sc); 2938 rum_set_bssid(sc, sc->sc_bssid); 2939 RUM_UNLOCK(sc); 2940 2941} 2942 2943static void 2944rum_set_channel(struct ieee80211com *ic) 2945{ 2946 struct rum_softc *sc = ic->ic_softc; 2947 2948 RUM_LOCK(sc); 2949 rum_set_chan(sc, ic->ic_curchan); 2950 RUM_UNLOCK(sc); 2951} 2952 2953static int 2954rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2955{ 2956 struct ieee80211com *ic = &sc->sc_ic; 2957 int lna, agc, rssi; 2958 2959 lna = (raw >> 5) & 0x3; 2960 agc = raw & 0x1f; 2961 2962 if (lna == 0) { 2963 /* 2964 * No RSSI mapping 2965 * 2966 * NB: Since RSSI is relative to noise floor, -1 is 2967 * adequate for caller to know error happened. 2968 */ 2969 return -1; 2970 } 2971 2972 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2973 2974 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2975 rssi += sc->rssi_2ghz_corr; 2976 2977 if (lna == 1) 2978 rssi -= 64; 2979 else if (lna == 2) 2980 rssi -= 74; 2981 else if (lna == 3) 2982 rssi -= 90; 2983 } else { 2984 rssi += sc->rssi_5ghz_corr; 2985 2986 if (!sc->ext_5ghz_lna && lna != 1) 2987 rssi += 4; 2988 2989 if (lna == 1) 2990 rssi -= 64; 2991 else if (lna == 2) 2992 rssi -= 86; 2993 else if (lna == 3) 2994 rssi -= 100; 2995 } 2996 return rssi; 2997} 2998 2999static int 3000rum_pause(struct rum_softc *sc, int timeout) 3001{ 3002 3003 usb_pause_mtx(&sc->sc_mtx, timeout); 3004 return (0); 3005} 3006 3007static device_method_t rum_methods[] = { 3008 /* Device interface */ 3009 DEVMETHOD(device_probe, rum_match), 3010 DEVMETHOD(device_attach, rum_attach), 3011 DEVMETHOD(device_detach, rum_detach), 3012 DEVMETHOD_END 3013}; 3014 3015static driver_t rum_driver = { 3016 .name = "rum", 3017 .methods = rum_methods, 3018 .size = sizeof(struct rum_softc), 3019}; 3020 3021static devclass_t rum_devclass; 3022 3023DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 3024MODULE_DEPEND(rum, wlan, 1, 1, 1); 3025MODULE_DEPEND(rum, usb, 1, 1, 1); 3026MODULE_VERSION(rum, 1); 3027