if_rum.c revision 288634
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288634 2015-10-03 20:53:10Z 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 288634 2015-10-03 20:53:10Z 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, 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 int rum_enable_tsf_sync(struct rum_softc *); 211static void rum_enable_tsf(struct rum_softc *); 212static void rum_abort_tsf_sync(struct rum_softc *); 213static void rum_get_tsf(struct rum_softc *, uint64_t *); 214static void rum_update_slot_cb(struct rum_softc *, 215 union sec_param *, uint8_t); 216static void rum_update_slot(struct ieee80211com *); 217static void rum_set_bssid(struct rum_softc *, const uint8_t *); 218static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 219static void rum_update_mcast(struct ieee80211com *); 220static void rum_update_promisc(struct ieee80211com *); 221static void rum_setpromisc(struct rum_softc *); 222static const char *rum_get_rf(int); 223static void rum_read_eeprom(struct rum_softc *); 224static int rum_bbp_wakeup(struct rum_softc *); 225static int rum_bbp_init(struct rum_softc *); 226static void rum_clr_shkey_regs(struct rum_softc *); 227static int rum_init(struct rum_softc *); 228static void rum_stop(struct rum_softc *); 229static void rum_load_microcode(struct rum_softc *, const uint8_t *, 230 size_t); 231static int rum_set_beacon(struct rum_softc *, 232 struct ieee80211vap *); 233static int rum_alloc_beacon(struct rum_softc *, 234 struct ieee80211vap *); 235static void rum_update_beacon_cb(struct rum_softc *, 236 union sec_param *, uint8_t); 237static void rum_update_beacon(struct ieee80211vap *, int); 238static int rum_common_key_set(struct rum_softc *, 239 struct ieee80211_key *, uint16_t); 240static void rum_group_key_set_cb(struct rum_softc *, 241 union sec_param *, uint8_t); 242static void rum_group_key_del_cb(struct rum_softc *, 243 union sec_param *, uint8_t); 244static void rum_pair_key_set_cb(struct rum_softc *, 245 union sec_param *, uint8_t); 246static void rum_pair_key_del_cb(struct rum_softc *, 247 union sec_param *, uint8_t); 248static int rum_key_alloc(struct ieee80211vap *, 249 struct ieee80211_key *, ieee80211_keyix *, 250 ieee80211_keyix *); 251static int rum_key_set(struct ieee80211vap *, 252 const struct ieee80211_key *, 253 const uint8_t mac[IEEE80211_ADDR_LEN]); 254static int rum_key_delete(struct ieee80211vap *, 255 const struct ieee80211_key *); 256static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 257 const struct ieee80211_bpf_params *); 258static void rum_scan_start(struct ieee80211com *); 259static void rum_scan_end(struct ieee80211com *); 260static void rum_set_channel(struct ieee80211com *); 261static int rum_get_rssi(struct rum_softc *, uint8_t); 262static void rum_ratectl_start(struct rum_softc *, 263 struct ieee80211_node *); 264static void rum_ratectl_timeout(void *); 265static void rum_ratectl_task(void *, int); 266static int rum_pause(struct rum_softc *, int); 267 268static const struct { 269 uint32_t reg; 270 uint32_t val; 271} rum_def_mac[] = { 272 { RT2573_TXRX_CSR0, 0x025fb032 }, 273 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 274 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 275 { RT2573_TXRX_CSR3, 0x00858687 }, 276 { RT2573_TXRX_CSR7, 0x2e31353b }, 277 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 278 { RT2573_TXRX_CSR15, 0x0000000f }, 279 { RT2573_MAC_CSR6, 0x00000fff }, 280 { RT2573_MAC_CSR8, 0x016c030a }, 281 { RT2573_MAC_CSR10, 0x00000718 }, 282 { RT2573_MAC_CSR12, 0x00000004 }, 283 { RT2573_MAC_CSR13, 0x00007f00 }, 284 { RT2573_SEC_CSR2, 0x00000000 }, 285 { RT2573_SEC_CSR3, 0x00000000 }, 286 { RT2573_SEC_CSR4, 0x00000000 }, 287 { RT2573_PHY_CSR1, 0x000023b0 }, 288 { RT2573_PHY_CSR5, 0x00040a06 }, 289 { RT2573_PHY_CSR6, 0x00080606 }, 290 { RT2573_PHY_CSR7, 0x00000408 }, 291 { RT2573_AIFSN_CSR, 0x00002273 }, 292 { RT2573_CWMIN_CSR, 0x00002344 }, 293 { RT2573_CWMAX_CSR, 0x000034aa } 294}; 295 296static const struct { 297 uint8_t reg; 298 uint8_t val; 299} rum_def_bbp[] = { 300 { 3, 0x80 }, 301 { 15, 0x30 }, 302 { 17, 0x20 }, 303 { 21, 0xc8 }, 304 { 22, 0x38 }, 305 { 23, 0x06 }, 306 { 24, 0xfe }, 307 { 25, 0x0a }, 308 { 26, 0x0d }, 309 { 32, 0x0b }, 310 { 34, 0x12 }, 311 { 37, 0x07 }, 312 { 39, 0xf8 }, 313 { 41, 0x60 }, 314 { 53, 0x10 }, 315 { 54, 0x18 }, 316 { 60, 0x10 }, 317 { 61, 0x04 }, 318 { 62, 0x04 }, 319 { 75, 0xfe }, 320 { 86, 0xfe }, 321 { 88, 0xfe }, 322 { 90, 0x0f }, 323 { 99, 0x00 }, 324 { 102, 0x16 }, 325 { 107, 0x04 } 326}; 327 328static const struct rfprog { 329 uint8_t chan; 330 uint32_t r1, r2, r3, r4; 331} rum_rf5226[] = { 332 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 333 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 334 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 335 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 336 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 337 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 338 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 339 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 340 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 341 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 342 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 343 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 344 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 345 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 346 347 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 348 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 349 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 350 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 351 352 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 353 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 354 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 355 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 356 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 357 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 358 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 359 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 360 361 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 362 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 363 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 364 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 365 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 366 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 367 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 368 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 369 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 370 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 371 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 372 373 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 374 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 375 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 376 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 377 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 378}, rum_rf5225[] = { 379 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 380 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 381 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 382 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 383 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 384 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 385 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 386 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 387 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 388 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 389 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 390 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 391 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 392 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 393 394 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 395 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 396 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 397 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 398 399 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 400 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 401 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 402 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 403 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 404 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 405 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 406 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 407 408 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 409 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 410 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 411 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 412 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 413 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 414 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 415 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 416 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 417 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 418 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 419 420 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 421 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 422 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 423 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 424 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 425}; 426 427static const struct usb_config rum_config[RUM_N_TRANSFER] = { 428 [RUM_BULK_WR] = { 429 .type = UE_BULK, 430 .endpoint = UE_ADDR_ANY, 431 .direction = UE_DIR_OUT, 432 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 433 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 434 .callback = rum_bulk_write_callback, 435 .timeout = 5000, /* ms */ 436 }, 437 [RUM_BULK_RD] = { 438 .type = UE_BULK, 439 .endpoint = UE_ADDR_ANY, 440 .direction = UE_DIR_IN, 441 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 442 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 443 .callback = rum_bulk_read_callback, 444 }, 445}; 446 447static int 448rum_match(device_t self) 449{ 450 struct usb_attach_arg *uaa = device_get_ivars(self); 451 452 if (uaa->usb_mode != USB_MODE_HOST) 453 return (ENXIO); 454 if (uaa->info.bConfigIndex != 0) 455 return (ENXIO); 456 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 457 return (ENXIO); 458 459 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 460} 461 462static int 463rum_attach(device_t self) 464{ 465 struct usb_attach_arg *uaa = device_get_ivars(self); 466 struct rum_softc *sc = device_get_softc(self); 467 struct ieee80211com *ic = &sc->sc_ic; 468 uint8_t iface_index, bands; 469 uint32_t tmp; 470 int error, ntries; 471 472 device_set_usb_desc(self); 473 sc->sc_udev = uaa->device; 474 sc->sc_dev = self; 475 476 RUM_LOCK_INIT(sc); 477 RUM_CMDQ_LOCK_INIT(sc); 478 mbufq_init(&sc->sc_snd, ifqmaxlen); 479 480 iface_index = RT2573_IFACE_INDEX; 481 error = usbd_transfer_setup(uaa->device, &iface_index, 482 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 483 if (error) { 484 device_printf(self, "could not allocate USB transfers, " 485 "err=%s\n", usbd_errstr(error)); 486 goto detach; 487 } 488 489 RUM_LOCK(sc); 490 /* retrieve RT2573 rev. no */ 491 for (ntries = 0; ntries < 100; ntries++) { 492 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 493 break; 494 if (rum_pause(sc, hz / 100)) 495 break; 496 } 497 if (ntries == 100) { 498 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 499 RUM_UNLOCK(sc); 500 goto detach; 501 } 502 503 /* retrieve MAC address and various other things from EEPROM */ 504 rum_read_eeprom(sc); 505 506 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 507 tmp, rum_get_rf(sc->rf_rev)); 508 509 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 510 RUM_UNLOCK(sc); 511 512 ic->ic_softc = sc; 513 ic->ic_name = device_get_nameunit(self); 514 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 515 516 /* set device capabilities */ 517 ic->ic_caps = 518 IEEE80211_C_STA /* station mode supported */ 519 | IEEE80211_C_IBSS /* IBSS mode supported */ 520 | IEEE80211_C_MONITOR /* monitor mode supported */ 521 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 522 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 523 | IEEE80211_C_TXPMGT /* tx power management */ 524 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 525 | IEEE80211_C_SHSLOT /* short slot time supported */ 526 | IEEE80211_C_BGSCAN /* bg scanning supported */ 527 | IEEE80211_C_WPA /* 802.11i */ 528 ; 529 530 ic->ic_cryptocaps = 531 IEEE80211_CRYPTO_WEP | 532 IEEE80211_CRYPTO_AES_CCM | 533 IEEE80211_CRYPTO_TKIPMIC | 534 IEEE80211_CRYPTO_TKIP; 535 536 bands = 0; 537 setbit(&bands, IEEE80211_MODE_11B); 538 setbit(&bands, IEEE80211_MODE_11G); 539 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 540 setbit(&bands, IEEE80211_MODE_11A); 541 ieee80211_init_channels(ic, NULL, &bands); 542 543 ieee80211_ifattach(ic); 544 ic->ic_update_promisc = rum_update_promisc; 545 ic->ic_raw_xmit = rum_raw_xmit; 546 ic->ic_scan_start = rum_scan_start; 547 ic->ic_scan_end = rum_scan_end; 548 ic->ic_set_channel = rum_set_channel; 549 ic->ic_transmit = rum_transmit; 550 ic->ic_parent = rum_parent; 551 ic->ic_vap_create = rum_vap_create; 552 ic->ic_vap_delete = rum_vap_delete; 553 ic->ic_updateslot = rum_update_slot; 554 ic->ic_update_mcast = rum_update_mcast; 555 556 ieee80211_radiotap_attach(ic, 557 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 558 RT2573_TX_RADIOTAP_PRESENT, 559 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 560 RT2573_RX_RADIOTAP_PRESENT); 561 562 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 563 564 if (bootverbose) 565 ieee80211_announce(ic); 566 567 return (0); 568 569detach: 570 rum_detach(self); 571 return (ENXIO); /* failure */ 572} 573 574static int 575rum_detach(device_t self) 576{ 577 struct rum_softc *sc = device_get_softc(self); 578 struct ieee80211com *ic = &sc->sc_ic; 579 580 /* Prevent further ioctls */ 581 RUM_LOCK(sc); 582 sc->sc_detached = 1; 583 RUM_UNLOCK(sc); 584 585 /* stop all USB transfers */ 586 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 587 588 /* free TX list, if any */ 589 RUM_LOCK(sc); 590 rum_unsetup_tx_list(sc); 591 RUM_UNLOCK(sc); 592 593 if (ic->ic_softc == sc) { 594 ieee80211_draintask(ic, &sc->cmdq_task); 595 ieee80211_ifdetach(ic); 596 } 597 598 mbufq_drain(&sc->sc_snd); 599 RUM_CMDQ_LOCK_DESTROY(sc); 600 RUM_LOCK_DESTROY(sc); 601 602 return (0); 603} 604 605static usb_error_t 606rum_do_request(struct rum_softc *sc, 607 struct usb_device_request *req, void *data) 608{ 609 usb_error_t err; 610 int ntries = 10; 611 612 while (ntries--) { 613 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 614 req, data, 0, NULL, 250 /* ms */); 615 if (err == 0) 616 break; 617 618 DPRINTFN(1, "Control request failed, %s (retrying)\n", 619 usbd_errstr(err)); 620 if (rum_pause(sc, hz / 100)) 621 break; 622 } 623 return (err); 624} 625 626static struct ieee80211vap * 627rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 628 enum ieee80211_opmode opmode, int flags, 629 const uint8_t bssid[IEEE80211_ADDR_LEN], 630 const uint8_t mac[IEEE80211_ADDR_LEN]) 631{ 632 struct rum_softc *sc = ic->ic_softc; 633 struct rum_vap *rvp; 634 struct ieee80211vap *vap; 635 636 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 637 return NULL; 638 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 639 vap = &rvp->vap; 640 /* enable s/w bmiss handling for sta mode */ 641 642 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 643 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 644 /* out of memory */ 645 free(rvp, M_80211_VAP); 646 return (NULL); 647 } 648 649 /* override state transition machine */ 650 rvp->newstate = vap->iv_newstate; 651 vap->iv_newstate = rum_newstate; 652 vap->iv_key_alloc = rum_key_alloc; 653 vap->iv_key_set = rum_key_set; 654 vap->iv_key_delete = rum_key_delete; 655 vap->iv_update_beacon = rum_update_beacon; 656 vap->iv_max_aid = RT2573_ADDR_MAX; 657 658 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 659 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 660 ieee80211_ratectl_init(vap); 661 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 662 /* complete setup */ 663 ieee80211_vap_attach(vap, ieee80211_media_change, 664 ieee80211_media_status, mac); 665 ic->ic_opmode = opmode; 666 return vap; 667} 668 669static void 670rum_vap_delete(struct ieee80211vap *vap) 671{ 672 struct rum_vap *rvp = RUM_VAP(vap); 673 struct ieee80211com *ic = vap->iv_ic; 674 675 m_freem(rvp->bcn_mbuf); 676 usb_callout_drain(&rvp->ratectl_ch); 677 ieee80211_draintask(ic, &rvp->ratectl_task); 678 ieee80211_ratectl_deinit(vap); 679 ieee80211_vap_detach(vap); 680 free(rvp, M_80211_VAP); 681} 682 683static void 684rum_cmdq_cb(void *arg, int pending) 685{ 686 struct rum_softc *sc = arg; 687 struct rum_cmdq *rc; 688 689 RUM_CMDQ_LOCK(sc); 690 while (sc->cmdq[sc->cmdq_first].func != NULL) { 691 rc = &sc->cmdq[sc->cmdq_first]; 692 RUM_CMDQ_UNLOCK(sc); 693 694 RUM_LOCK(sc); 695 rc->func(sc, &rc->data, rc->rvp_id); 696 RUM_UNLOCK(sc); 697 698 RUM_CMDQ_LOCK(sc); 699 memset(rc, 0, sizeof (*rc)); 700 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 701 } 702 RUM_CMDQ_UNLOCK(sc); 703} 704 705static int 706rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 707 uint8_t rvp_id, CMD_FUNC_PROTO) 708{ 709 struct ieee80211com *ic = &sc->sc_ic; 710 711 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 712 713 RUM_CMDQ_LOCK(sc); 714 if (sc->cmdq[sc->cmdq_last].func != NULL) { 715 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 716 RUM_CMDQ_UNLOCK(sc); 717 718 return EAGAIN; 719 } 720 721 if (ptr != NULL) 722 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 723 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 724 sc->cmdq[sc->cmdq_last].func = func; 725 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 726 RUM_CMDQ_UNLOCK(sc); 727 728 ieee80211_runtask(ic, &sc->cmdq_task); 729 730 return 0; 731} 732 733static void 734rum_tx_free(struct rum_tx_data *data, int txerr) 735{ 736 struct rum_softc *sc = data->sc; 737 738 if (data->m != NULL) { 739 ieee80211_tx_complete(data->ni, data->m, txerr); 740 data->m = NULL; 741 data->ni = NULL; 742 } 743 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 744 sc->tx_nfree++; 745} 746 747static void 748rum_setup_tx_list(struct rum_softc *sc) 749{ 750 struct rum_tx_data *data; 751 int i; 752 753 sc->tx_nfree = 0; 754 STAILQ_INIT(&sc->tx_q); 755 STAILQ_INIT(&sc->tx_free); 756 757 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 758 data = &sc->tx_data[i]; 759 760 data->sc = sc; 761 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 762 sc->tx_nfree++; 763 } 764} 765 766static void 767rum_unsetup_tx_list(struct rum_softc *sc) 768{ 769 struct rum_tx_data *data; 770 int i; 771 772 /* make sure any subsequent use of the queues will fail */ 773 sc->tx_nfree = 0; 774 STAILQ_INIT(&sc->tx_q); 775 STAILQ_INIT(&sc->tx_free); 776 777 /* free up all node references and mbufs */ 778 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 779 data = &sc->tx_data[i]; 780 781 if (data->m != NULL) { 782 m_freem(data->m); 783 data->m = NULL; 784 } 785 if (data->ni != NULL) { 786 ieee80211_free_node(data->ni); 787 data->ni = NULL; 788 } 789 } 790} 791 792static int 793rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 794{ 795 struct rum_vap *rvp = RUM_VAP(vap); 796 struct ieee80211com *ic = vap->iv_ic; 797 struct rum_softc *sc = ic->ic_softc; 798 const struct ieee80211_txparam *tp; 799 enum ieee80211_state ostate; 800 struct ieee80211_node *ni; 801 int ret; 802 803 ostate = vap->iv_state; 804 DPRINTF("%s -> %s\n", 805 ieee80211_state_name[ostate], 806 ieee80211_state_name[nstate]); 807 808 IEEE80211_UNLOCK(ic); 809 RUM_LOCK(sc); 810 usb_callout_stop(&rvp->ratectl_ch); 811 812 switch (nstate) { 813 case IEEE80211_S_INIT: 814 if (ostate == IEEE80211_S_RUN) 815 rum_abort_tsf_sync(sc); 816 817 break; 818 819 case IEEE80211_S_RUN: 820 ni = ieee80211_ref_node(vap->iv_bss); 821 822 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 823 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 824 ret = EINVAL; 825 goto run_fail; 826 } 827 rum_update_slot_cb(sc, NULL, 0); 828 rum_enable_mrr(sc); 829 rum_set_txpreamble(sc); 830 rum_set_basicrates(sc); 831 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 832 rum_set_bssid(sc, sc->sc_bssid); 833 } 834 835 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 836 vap->iv_opmode == IEEE80211_M_IBSS) { 837 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 838 goto run_fail; 839 } 840 841 if (vap->iv_opmode != IEEE80211_M_MONITOR && 842 vap->iv_opmode != IEEE80211_M_AHDEMO) { 843 if ((ret = rum_enable_tsf_sync(sc)) != 0) 844 goto run_fail; 845 } else 846 rum_enable_tsf(sc); 847 848 /* enable automatic rate adaptation */ 849 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 850 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 851 rum_ratectl_start(sc, ni); 852 ieee80211_free_node(ni); 853 break; 854 default: 855 break; 856 } 857 RUM_UNLOCK(sc); 858 IEEE80211_LOCK(ic); 859 return (rvp->newstate(vap, nstate, arg)); 860 861run_fail: 862 RUM_UNLOCK(sc); 863 IEEE80211_LOCK(ic); 864 ieee80211_free_node(ni); 865 return ret; 866} 867 868static void 869rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 870{ 871 struct rum_softc *sc = usbd_xfer_softc(xfer); 872 struct ieee80211vap *vap; 873 struct rum_tx_data *data; 874 struct mbuf *m; 875 struct usb_page_cache *pc; 876 unsigned int len; 877 int actlen, sumlen; 878 879 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 880 881 switch (USB_GET_STATE(xfer)) { 882 case USB_ST_TRANSFERRED: 883 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 884 885 /* free resources */ 886 data = usbd_xfer_get_priv(xfer); 887 rum_tx_free(data, 0); 888 usbd_xfer_set_priv(xfer, NULL); 889 890 /* FALLTHROUGH */ 891 case USB_ST_SETUP: 892tr_setup: 893 data = STAILQ_FIRST(&sc->tx_q); 894 if (data) { 895 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 896 m = data->m; 897 898 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 899 DPRINTFN(0, "data overflow, %u bytes\n", 900 m->m_pkthdr.len); 901 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 902 } 903 pc = usbd_xfer_get_frame(xfer, 0); 904 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 905 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 906 m->m_pkthdr.len); 907 908 vap = data->ni->ni_vap; 909 if (ieee80211_radiotap_active_vap(vap)) { 910 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 911 912 tap->wt_flags = 0; 913 tap->wt_rate = data->rate; 914 rum_get_tsf(sc, &tap->wt_tsf); 915 tap->wt_antenna = sc->tx_ant; 916 917 ieee80211_radiotap_tx(vap, m); 918 } 919 920 /* align end on a 4-bytes boundary */ 921 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 922 if ((len % 64) == 0) 923 len += 4; 924 925 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 926 m->m_pkthdr.len, len); 927 928 usbd_xfer_set_frame_len(xfer, 0, len); 929 usbd_xfer_set_priv(xfer, data); 930 931 usbd_transfer_submit(xfer); 932 } 933 rum_start(sc); 934 break; 935 936 default: /* Error */ 937 DPRINTFN(11, "transfer error, %s\n", 938 usbd_errstr(error)); 939 940 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 941 data = usbd_xfer_get_priv(xfer); 942 if (data != NULL) { 943 rum_tx_free(data, error); 944 usbd_xfer_set_priv(xfer, NULL); 945 } 946 947 if (error != USB_ERR_CANCELLED) { 948 if (error == USB_ERR_TIMEOUT) 949 device_printf(sc->sc_dev, "device timeout\n"); 950 951 /* 952 * Try to clear stall first, also if other 953 * errors occur, hence clearing stall 954 * introduces a 50 ms delay: 955 */ 956 usbd_xfer_set_stall(xfer); 957 goto tr_setup; 958 } 959 break; 960 } 961} 962 963static void 964rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 965{ 966 struct rum_softc *sc = usbd_xfer_softc(xfer); 967 struct ieee80211com *ic = &sc->sc_ic; 968 struct ieee80211_frame_min *wh; 969 struct ieee80211_node *ni; 970 struct mbuf *m = NULL; 971 struct usb_page_cache *pc; 972 uint32_t flags; 973 uint8_t rssi = 0; 974 int len; 975 976 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 977 978 switch (USB_GET_STATE(xfer)) { 979 case USB_ST_TRANSFERRED: 980 981 DPRINTFN(15, "rx done, actlen=%d\n", len); 982 983 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 984 DPRINTF("%s: xfer too short %d\n", 985 device_get_nameunit(sc->sc_dev), len); 986 counter_u64_add(ic->ic_ierrors, 1); 987 goto tr_setup; 988 } 989 990 len -= RT2573_RX_DESC_SIZE; 991 pc = usbd_xfer_get_frame(xfer, 0); 992 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 993 994 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 995 flags = le32toh(sc->sc_rx_desc.flags); 996 if (flags & RT2573_RX_CRC_ERROR) { 997 /* 998 * This should not happen since we did not 999 * request to receive those frames when we 1000 * filled RUM_TXRX_CSR2: 1001 */ 1002 DPRINTFN(5, "PHY or CRC error\n"); 1003 counter_u64_add(ic->ic_ierrors, 1); 1004 goto tr_setup; 1005 } 1006 if ((flags & RT2573_RX_DEC_MASK) != RT2573_RX_DEC_OK) { 1007 switch (flags & RT2573_RX_DEC_MASK) { 1008 case RT2573_RX_IV_ERROR: 1009 DPRINTFN(5, "IV/EIV error\n"); 1010 break; 1011 case RT2573_RX_MIC_ERROR: 1012 DPRINTFN(5, "MIC error\n"); 1013 break; 1014 case RT2573_RX_KEY_ERROR: 1015 DPRINTFN(5, "Key error\n"); 1016 break; 1017 } 1018 counter_u64_add(ic->ic_ierrors, 1); 1019 goto tr_setup; 1020 } 1021 1022 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1023 if (m == NULL) { 1024 DPRINTF("could not allocate mbuf\n"); 1025 counter_u64_add(ic->ic_ierrors, 1); 1026 goto tr_setup; 1027 } 1028 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 1029 mtod(m, uint8_t *), len); 1030 1031 wh = mtod(m, struct ieee80211_frame_min *); 1032 1033 if ((wh->i_fc[1] & IEEE80211_FC1_PROTECTED) && 1034 (flags & RT2573_RX_CIP_MASK) != 1035 RT2573_RX_CIP_MODE(RT2573_MODE_NOSEC)) { 1036 wh->i_fc[1] &= ~IEEE80211_FC1_PROTECTED; 1037 m->m_flags |= M_WEP; 1038 } 1039 1040 /* finalize mbuf */ 1041 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 1042 1043 if (ieee80211_radiotap_active(ic)) { 1044 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 1045 1046 tap->wr_flags = 0; 1047 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 1048 (flags & RT2573_RX_OFDM) ? 1049 IEEE80211_T_OFDM : IEEE80211_T_CCK); 1050 rum_get_tsf(sc, &tap->wr_tsf); 1051 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 1052 tap->wr_antnoise = RT2573_NOISE_FLOOR; 1053 tap->wr_antenna = sc->rx_ant; 1054 } 1055 /* FALLTHROUGH */ 1056 case USB_ST_SETUP: 1057tr_setup: 1058 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1059 usbd_transfer_submit(xfer); 1060 1061 /* 1062 * At the end of a USB callback it is always safe to unlock 1063 * the private mutex of a device! That is why we do the 1064 * "ieee80211_input" here, and not some lines up! 1065 */ 1066 RUM_UNLOCK(sc); 1067 if (m) { 1068 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1069 ni = ieee80211_find_rxnode(ic, wh); 1070 else 1071 ni = NULL; 1072 1073 if (ni != NULL) { 1074 (void) ieee80211_input(ni, m, rssi, 1075 RT2573_NOISE_FLOOR); 1076 ieee80211_free_node(ni); 1077 } else 1078 (void) ieee80211_input_all(ic, m, rssi, 1079 RT2573_NOISE_FLOOR); 1080 } 1081 RUM_LOCK(sc); 1082 rum_start(sc); 1083 return; 1084 1085 default: /* Error */ 1086 if (error != USB_ERR_CANCELLED) { 1087 /* try to clear stall first */ 1088 usbd_xfer_set_stall(xfer); 1089 goto tr_setup; 1090 } 1091 return; 1092 } 1093} 1094 1095static uint8_t 1096rum_plcp_signal(int rate) 1097{ 1098 switch (rate) { 1099 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1100 case 12: return 0xb; 1101 case 18: return 0xf; 1102 case 24: return 0xa; 1103 case 36: return 0xe; 1104 case 48: return 0x9; 1105 case 72: return 0xd; 1106 case 96: return 0x8; 1107 case 108: return 0xc; 1108 1109 /* CCK rates (NB: not IEEE std, device-specific) */ 1110 case 2: return 0x0; 1111 case 4: return 0x1; 1112 case 11: return 0x2; 1113 case 22: return 0x3; 1114 } 1115 return 0xff; /* XXX unsupported/unknown rate */ 1116} 1117 1118/* 1119 * Map net80211 cipher to RT2573 security mode. 1120 */ 1121static uint8_t 1122rum_crypto_mode(struct rum_softc *sc, u_int cipher, int keylen) 1123{ 1124 switch (cipher) { 1125 case IEEE80211_CIPHER_WEP: 1126 return (keylen < 8 ? RT2573_MODE_WEP40 : RT2573_MODE_WEP104); 1127 case IEEE80211_CIPHER_TKIP: 1128 return RT2573_MODE_TKIP; 1129 case IEEE80211_CIPHER_AES_CCM: 1130 return RT2573_MODE_AES_CCMP; 1131 default: 1132 device_printf(sc->sc_dev, "unknown cipher %d\n", cipher); 1133 return 0; 1134 } 1135} 1136 1137static void 1138rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1139 struct ieee80211_key *k, uint32_t flags, uint8_t xflags, int hdrlen, 1140 int len, int rate) 1141{ 1142 struct ieee80211com *ic = &sc->sc_ic; 1143 uint16_t plcp_length; 1144 int remainder; 1145 1146 flags |= RT2573_TX_VALID; 1147 flags |= len << 16; 1148 1149 if (k != NULL && !(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1150 const struct ieee80211_cipher *cip = k->wk_cipher; 1151 1152 len += cip->ic_header + cip->ic_trailer + cip->ic_miclen; 1153 1154 desc->eiv = 0; /* for WEP */ 1155 cip->ic_setiv(k, (uint8_t *)&desc->iv); 1156 } 1157 1158 /* setup PLCP fields */ 1159 desc->plcp_signal = rum_plcp_signal(rate); 1160 desc->plcp_service = 4; 1161 1162 len += IEEE80211_CRC_LEN; 1163 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1164 flags |= RT2573_TX_OFDM; 1165 1166 plcp_length = len & 0xfff; 1167 desc->plcp_length_hi = plcp_length >> 6; 1168 desc->plcp_length_lo = plcp_length & 0x3f; 1169 } else { 1170 if (rate == 0) 1171 rate = 2; /* avoid division by zero */ 1172 plcp_length = (16 * len + rate - 1) / rate; 1173 if (rate == 22) { 1174 remainder = (16 * len) % 22; 1175 if (remainder != 0 && remainder < 7) 1176 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1177 } 1178 desc->plcp_length_hi = plcp_length >> 8; 1179 desc->plcp_length_lo = plcp_length & 0xff; 1180 1181 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1182 desc->plcp_signal |= 0x08; 1183 } 1184 1185 desc->flags = htole32(flags); 1186 desc->hdrlen = hdrlen; 1187 desc->xflags = xflags; 1188 1189 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1190 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1191} 1192 1193static int 1194rum_sendprot(struct rum_softc *sc, 1195 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1196{ 1197 struct ieee80211com *ic = ni->ni_ic; 1198 const struct ieee80211_frame *wh; 1199 struct rum_tx_data *data; 1200 struct mbuf *mprot; 1201 int protrate, pktlen, flags, isshort; 1202 uint16_t dur; 1203 1204 RUM_LOCK_ASSERT(sc); 1205 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1206 ("protection %d", prot)); 1207 1208 wh = mtod(m, const struct ieee80211_frame *); 1209 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1210 1211 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1212 1213 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1214 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1215 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1216 flags = RT2573_TX_MORE_FRAG; 1217 if (prot == IEEE80211_PROT_RTSCTS) { 1218 /* NB: CTS is the same size as an ACK */ 1219 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1220 flags |= RT2573_TX_NEED_ACK; 1221 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1222 } else { 1223 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1224 } 1225 if (mprot == NULL) { 1226 /* XXX stat + msg */ 1227 return (ENOBUFS); 1228 } 1229 data = STAILQ_FIRST(&sc->tx_free); 1230 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1231 sc->tx_nfree--; 1232 1233 data->m = mprot; 1234 data->ni = ieee80211_ref_node(ni); 1235 data->rate = protrate; 1236 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, 1237 mprot->m_pkthdr.len, protrate); 1238 1239 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1240 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1241 1242 return 0; 1243} 1244 1245static uint32_t 1246rum_tx_crypto_flags(struct rum_softc *sc, struct ieee80211_node *ni, 1247 const struct ieee80211_key *k) 1248{ 1249 struct ieee80211vap *vap = ni->ni_vap; 1250 u_int cipher; 1251 uint32_t flags = 0; 1252 uint8_t mode, pos; 1253 1254 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 1255 cipher = k->wk_cipher->ic_cipher; 1256 pos = k->wk_keyix; 1257 mode = rum_crypto_mode(sc, cipher, k->wk_keylen); 1258 if (mode == 0) 1259 return 0; 1260 1261 flags |= RT2573_TX_CIP_MODE(mode); 1262 1263 /* Do not trust GROUP flag */ 1264 if (!(k >= &vap->iv_nw_keys[0] && 1265 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) 1266 flags |= RT2573_TX_KEY_PAIR; 1267 else 1268 pos += 0 * RT2573_SKEY_MAX; /* vap id */ 1269 1270 flags |= RT2573_TX_KEY_ID(pos); 1271 1272 if (cipher == IEEE80211_CIPHER_TKIP) 1273 flags |= RT2573_TX_TKIPMIC; 1274 } 1275 1276 return flags; 1277} 1278 1279static int 1280rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1281{ 1282 struct ieee80211vap *vap = ni->ni_vap; 1283 struct ieee80211com *ic = &sc->sc_ic; 1284 struct rum_tx_data *data; 1285 struct ieee80211_frame *wh; 1286 const struct ieee80211_txparam *tp; 1287 struct ieee80211_key *k = NULL; 1288 uint32_t flags = 0; 1289 uint16_t dur; 1290 int hdrlen; 1291 1292 RUM_LOCK_ASSERT(sc); 1293 1294 data = STAILQ_FIRST(&sc->tx_free); 1295 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1296 sc->tx_nfree--; 1297 1298 wh = mtod(m0, struct ieee80211_frame *); 1299 hdrlen = ieee80211_anyhdrsize(wh); 1300 1301 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1302 k = ieee80211_crypto_get_txkey(ni, m0); 1303 if (k == NULL) 1304 return (ENOENT); 1305 1306 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1307 !k->wk_cipher->ic_encap(k, m0)) 1308 return (ENOBUFS); 1309 1310 wh = mtod(m0, struct ieee80211_frame *); 1311 } 1312 1313 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1314 1315 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1316 flags |= RT2573_TX_NEED_ACK; 1317 1318 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1319 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1320 USETW(wh->i_dur, dur); 1321 1322 /* tell hardware to add timestamp for probe responses */ 1323 if ((wh->i_fc[0] & 1324 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1325 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1326 flags |= RT2573_TX_TIMESTAMP; 1327 } 1328 1329 if (k != NULL) 1330 flags |= rum_tx_crypto_flags(sc, ni, k); 1331 1332 data->m = m0; 1333 data->ni = ni; 1334 data->rate = tp->mgmtrate; 1335 1336 rum_setup_tx_desc(sc, &data->desc, k, flags, 0, hdrlen, 1337 m0->m_pkthdr.len, tp->mgmtrate); 1338 1339 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1340 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1341 1342 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1343 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1344 1345 return (0); 1346} 1347 1348static int 1349rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1350 const struct ieee80211_bpf_params *params) 1351{ 1352 struct ieee80211com *ic = ni->ni_ic; 1353 struct rum_tx_data *data; 1354 uint32_t flags; 1355 int rate, error; 1356 1357 RUM_LOCK_ASSERT(sc); 1358 1359 rate = params->ibp_rate0; 1360 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1361 return (EINVAL); 1362 1363 flags = 0; 1364 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1365 flags |= RT2573_TX_NEED_ACK; 1366 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1367 error = rum_sendprot(sc, m0, ni, 1368 params->ibp_flags & IEEE80211_BPF_RTS ? 1369 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1370 rate); 1371 if (error || sc->tx_nfree == 0) 1372 return (ENOBUFS); 1373 1374 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1375 } 1376 1377 data = STAILQ_FIRST(&sc->tx_free); 1378 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1379 sc->tx_nfree--; 1380 1381 data->m = m0; 1382 data->ni = ni; 1383 data->rate = rate; 1384 1385 /* XXX need to setup descriptor ourself */ 1386 rum_setup_tx_desc(sc, &data->desc, NULL, flags, 0, 0, m0->m_pkthdr.len, 1387 rate); 1388 1389 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1390 m0->m_pkthdr.len, rate); 1391 1392 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1393 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1394 1395 return 0; 1396} 1397 1398static int 1399rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1400{ 1401 struct ieee80211vap *vap = ni->ni_vap; 1402 struct ieee80211com *ic = &sc->sc_ic; 1403 struct rum_tx_data *data; 1404 struct ieee80211_frame *wh; 1405 const struct ieee80211_txparam *tp; 1406 struct ieee80211_key *k = NULL; 1407 uint32_t flags = 0; 1408 uint16_t dur; 1409 int error, hdrlen, rate; 1410 1411 RUM_LOCK_ASSERT(sc); 1412 1413 wh = mtod(m0, struct ieee80211_frame *); 1414 hdrlen = ieee80211_anyhdrsize(wh); 1415 1416 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1417 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1418 rate = tp->mcastrate; 1419 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1420 rate = tp->ucastrate; 1421 else 1422 rate = ni->ni_txrate; 1423 1424 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1425 k = ieee80211_crypto_get_txkey(ni, m0); 1426 if (k == NULL) { 1427 m_freem(m0); 1428 return (ENOENT); 1429 } 1430 if ((k->wk_flags & IEEE80211_KEY_SWCRYPT) && 1431 !k->wk_cipher->ic_encap(k, m0)) { 1432 m_freem(m0); 1433 return (ENOBUFS); 1434 } 1435 1436 /* packet header may have moved, reset our local pointer */ 1437 wh = mtod(m0, struct ieee80211_frame *); 1438 } 1439 1440 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1441 int prot = IEEE80211_PROT_NONE; 1442 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1443 prot = IEEE80211_PROT_RTSCTS; 1444 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1445 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1446 prot = ic->ic_protmode; 1447 if (prot != IEEE80211_PROT_NONE) { 1448 error = rum_sendprot(sc, m0, ni, prot, rate); 1449 if (error || sc->tx_nfree == 0) { 1450 m_freem(m0); 1451 return ENOBUFS; 1452 } 1453 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1454 } 1455 } 1456 1457 if (k != NULL) 1458 flags |= rum_tx_crypto_flags(sc, ni, k); 1459 1460 data = STAILQ_FIRST(&sc->tx_free); 1461 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1462 sc->tx_nfree--; 1463 1464 data->m = m0; 1465 data->ni = ni; 1466 data->rate = rate; 1467 1468 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1469 flags |= RT2573_TX_NEED_ACK; 1470 flags |= RT2573_TX_MORE_FRAG; 1471 1472 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1473 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1474 USETW(wh->i_dur, dur); 1475 } 1476 1477 rum_setup_tx_desc(sc, &data->desc, k, flags, 0, hdrlen, 1478 m0->m_pkthdr.len, rate); 1479 1480 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1481 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1482 1483 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1484 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1485 1486 return 0; 1487} 1488 1489static int 1490rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1491{ 1492 struct rum_softc *sc = ic->ic_softc; 1493 int error; 1494 1495 RUM_LOCK(sc); 1496 if (!sc->sc_running) { 1497 RUM_UNLOCK(sc); 1498 return (ENXIO); 1499 } 1500 error = mbufq_enqueue(&sc->sc_snd, m); 1501 if (error) { 1502 RUM_UNLOCK(sc); 1503 return (error); 1504 } 1505 rum_start(sc); 1506 RUM_UNLOCK(sc); 1507 1508 return (0); 1509} 1510 1511static void 1512rum_start(struct rum_softc *sc) 1513{ 1514 struct ieee80211_node *ni; 1515 struct mbuf *m; 1516 1517 RUM_LOCK_ASSERT(sc); 1518 1519 if (!sc->sc_running) 1520 return; 1521 1522 while (sc->tx_nfree >= RUM_TX_MINFREE && 1523 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1524 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1525 if (rum_tx_data(sc, m, ni) != 0) { 1526 if_inc_counter(ni->ni_vap->iv_ifp, 1527 IFCOUNTER_OERRORS, 1); 1528 ieee80211_free_node(ni); 1529 break; 1530 } 1531 } 1532} 1533 1534static void 1535rum_parent(struct ieee80211com *ic) 1536{ 1537 struct rum_softc *sc = ic->ic_softc; 1538 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1539 1540 RUM_LOCK(sc); 1541 if (sc->sc_detached) { 1542 RUM_UNLOCK(sc); 1543 return; 1544 } 1545 RUM_UNLOCK(sc); 1546 1547 if (ic->ic_nrunning > 0) { 1548 if (rum_init(sc) == 0) 1549 ieee80211_start_all(ic); 1550 else 1551 ieee80211_stop(vap); 1552 } else 1553 rum_stop(sc); 1554} 1555 1556static void 1557rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1558{ 1559 struct usb_device_request req; 1560 usb_error_t error; 1561 1562 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1563 req.bRequest = RT2573_READ_EEPROM; 1564 USETW(req.wValue, 0); 1565 USETW(req.wIndex, addr); 1566 USETW(req.wLength, len); 1567 1568 error = rum_do_request(sc, &req, buf); 1569 if (error != 0) { 1570 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1571 usbd_errstr(error)); 1572 } 1573} 1574 1575static uint32_t 1576rum_read(struct rum_softc *sc, uint16_t reg) 1577{ 1578 uint32_t val; 1579 1580 rum_read_multi(sc, reg, &val, sizeof val); 1581 1582 return le32toh(val); 1583} 1584 1585static void 1586rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1587{ 1588 struct usb_device_request req; 1589 usb_error_t error; 1590 1591 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1592 req.bRequest = RT2573_READ_MULTI_MAC; 1593 USETW(req.wValue, 0); 1594 USETW(req.wIndex, reg); 1595 USETW(req.wLength, len); 1596 1597 error = rum_do_request(sc, &req, buf); 1598 if (error != 0) { 1599 device_printf(sc->sc_dev, 1600 "could not multi read MAC register: %s\n", 1601 usbd_errstr(error)); 1602 } 1603} 1604 1605static usb_error_t 1606rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1607{ 1608 uint32_t tmp = htole32(val); 1609 1610 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1611} 1612 1613static usb_error_t 1614rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1615{ 1616 struct usb_device_request req; 1617 usb_error_t error; 1618 size_t offset; 1619 1620 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1621 req.bRequest = RT2573_WRITE_MULTI_MAC; 1622 USETW(req.wValue, 0); 1623 1624 /* write at most 64 bytes at a time */ 1625 for (offset = 0; offset < len; offset += 64) { 1626 USETW(req.wIndex, reg + offset); 1627 USETW(req.wLength, MIN(len - offset, 64)); 1628 1629 error = rum_do_request(sc, &req, (char *)buf + offset); 1630 if (error != 0) { 1631 device_printf(sc->sc_dev, 1632 "could not multi write MAC register: %s\n", 1633 usbd_errstr(error)); 1634 return (error); 1635 } 1636 } 1637 1638 return (USB_ERR_NORMAL_COMPLETION); 1639} 1640 1641static usb_error_t 1642rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1643{ 1644 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1645} 1646 1647static usb_error_t 1648rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1649{ 1650 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1651} 1652 1653static usb_error_t 1654rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1655{ 1656 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1657} 1658 1659static int 1660rum_bbp_busy(struct rum_softc *sc) 1661{ 1662 int ntries; 1663 1664 for (ntries = 0; ntries < 100; ntries++) { 1665 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1666 break; 1667 if (rum_pause(sc, hz / 100)) 1668 break; 1669 } 1670 if (ntries == 100) 1671 return (ETIMEDOUT); 1672 1673 return (0); 1674} 1675 1676static void 1677rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1678{ 1679 uint32_t tmp; 1680 1681 DPRINTFN(2, "reg=0x%08x\n", reg); 1682 1683 if (rum_bbp_busy(sc) != 0) { 1684 device_printf(sc->sc_dev, "could not write to BBP\n"); 1685 return; 1686 } 1687 1688 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1689 rum_write(sc, RT2573_PHY_CSR3, tmp); 1690} 1691 1692static uint8_t 1693rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1694{ 1695 uint32_t val; 1696 int ntries; 1697 1698 DPRINTFN(2, "reg=0x%08x\n", reg); 1699 1700 if (rum_bbp_busy(sc) != 0) { 1701 device_printf(sc->sc_dev, "could not read BBP\n"); 1702 return 0; 1703 } 1704 1705 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1706 rum_write(sc, RT2573_PHY_CSR3, val); 1707 1708 for (ntries = 0; ntries < 100; ntries++) { 1709 val = rum_read(sc, RT2573_PHY_CSR3); 1710 if (!(val & RT2573_BBP_BUSY)) 1711 return val & 0xff; 1712 if (rum_pause(sc, hz / 100)) 1713 break; 1714 } 1715 1716 device_printf(sc->sc_dev, "could not read BBP\n"); 1717 return 0; 1718} 1719 1720static void 1721rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1722{ 1723 uint32_t tmp; 1724 int ntries; 1725 1726 for (ntries = 0; ntries < 100; ntries++) { 1727 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1728 break; 1729 if (rum_pause(sc, hz / 100)) 1730 break; 1731 } 1732 if (ntries == 100) { 1733 device_printf(sc->sc_dev, "could not write to RF\n"); 1734 return; 1735 } 1736 1737 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1738 (reg & 3); 1739 rum_write(sc, RT2573_PHY_CSR4, tmp); 1740 1741 /* remember last written value in sc */ 1742 sc->rf_regs[reg] = val; 1743 1744 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1745} 1746 1747static void 1748rum_select_antenna(struct rum_softc *sc) 1749{ 1750 uint8_t bbp4, bbp77; 1751 uint32_t tmp; 1752 1753 bbp4 = rum_bbp_read(sc, 4); 1754 bbp77 = rum_bbp_read(sc, 77); 1755 1756 /* TBD */ 1757 1758 /* make sure Rx is disabled before switching antenna */ 1759 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1760 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1761 1762 rum_bbp_write(sc, 4, bbp4); 1763 rum_bbp_write(sc, 77, bbp77); 1764 1765 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1766} 1767 1768/* 1769 * Enable multi-rate retries for frames sent at OFDM rates. 1770 * In 802.11b/g mode, allow fallback to CCK rates. 1771 */ 1772static void 1773rum_enable_mrr(struct rum_softc *sc) 1774{ 1775 struct ieee80211com *ic = &sc->sc_ic; 1776 1777 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1778 rum_setbits(sc, RT2573_TXRX_CSR4, 1779 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1780 } else { 1781 rum_modbits(sc, RT2573_TXRX_CSR4, 1782 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1783 } 1784} 1785 1786static void 1787rum_set_txpreamble(struct rum_softc *sc) 1788{ 1789 struct ieee80211com *ic = &sc->sc_ic; 1790 1791 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1792 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1793 else 1794 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1795} 1796 1797static void 1798rum_set_basicrates(struct rum_softc *sc) 1799{ 1800 struct ieee80211com *ic = &sc->sc_ic; 1801 1802 /* update basic rate set */ 1803 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1804 /* 11b basic rates: 1, 2Mbps */ 1805 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1806 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1807 /* 11a basic rates: 6, 12, 24Mbps */ 1808 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1809 } else { 1810 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1811 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1812 } 1813} 1814 1815/* 1816 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1817 * driver. 1818 */ 1819static void 1820rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1821{ 1822 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1823 1824 /* update all BBP registers that depend on the band */ 1825 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1826 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1827 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1828 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1829 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1830 } 1831 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1832 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1833 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1834 } 1835 1836 sc->bbp17 = bbp17; 1837 rum_bbp_write(sc, 17, bbp17); 1838 rum_bbp_write(sc, 96, bbp96); 1839 rum_bbp_write(sc, 104, bbp104); 1840 1841 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1842 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1843 rum_bbp_write(sc, 75, 0x80); 1844 rum_bbp_write(sc, 86, 0x80); 1845 rum_bbp_write(sc, 88, 0x80); 1846 } 1847 1848 rum_bbp_write(sc, 35, bbp35); 1849 rum_bbp_write(sc, 97, bbp97); 1850 rum_bbp_write(sc, 98, bbp98); 1851 1852 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1853 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1854 RT2573_PA_PE_5GHZ); 1855 } else { 1856 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1857 RT2573_PA_PE_2GHZ); 1858 } 1859} 1860 1861static void 1862rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1863{ 1864 struct ieee80211com *ic = &sc->sc_ic; 1865 const struct rfprog *rfprog; 1866 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1867 int8_t power; 1868 int i, chan; 1869 1870 chan = ieee80211_chan2ieee(ic, c); 1871 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1872 return; 1873 1874 /* select the appropriate RF settings based on what EEPROM says */ 1875 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1876 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1877 1878 /* find the settings for this channel (we know it exists) */ 1879 for (i = 0; rfprog[i].chan != chan; i++); 1880 1881 power = sc->txpow[i]; 1882 if (power < 0) { 1883 bbp94 += power; 1884 power = 0; 1885 } else if (power > 31) { 1886 bbp94 += power - 31; 1887 power = 31; 1888 } 1889 1890 /* 1891 * If we are switching from the 2GHz band to the 5GHz band or 1892 * vice-versa, BBP registers need to be reprogrammed. 1893 */ 1894 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1895 rum_select_band(sc, c); 1896 rum_select_antenna(sc); 1897 } 1898 ic->ic_curchan = c; 1899 1900 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1901 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1902 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1903 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1904 1905 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1906 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1907 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1908 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1909 1910 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1911 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1912 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1913 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1914 1915 rum_pause(sc, hz / 100); 1916 1917 /* enable smart mode for MIMO-capable RFs */ 1918 bbp3 = rum_bbp_read(sc, 3); 1919 1920 bbp3 &= ~RT2573_SMART_MODE; 1921 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1922 bbp3 |= RT2573_SMART_MODE; 1923 1924 rum_bbp_write(sc, 3, bbp3); 1925 1926 if (bbp94 != RT2573_BBPR94_DEFAULT) 1927 rum_bbp_write(sc, 94, bbp94); 1928 1929 /* give the chip some extra time to do the switchover */ 1930 rum_pause(sc, hz / 100); 1931} 1932 1933/* 1934 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1935 * and HostAP operating modes. 1936 */ 1937static int 1938rum_enable_tsf_sync(struct rum_softc *sc) 1939{ 1940 struct ieee80211com *ic = &sc->sc_ic; 1941 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1942 uint32_t tmp; 1943 1944 if (vap->iv_opmode != IEEE80211_M_STA) { 1945 /* 1946 * Change default 16ms TBTT adjustment to 8ms. 1947 * Must be done before enabling beacon generation. 1948 */ 1949 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 1950 return EIO; 1951 } 1952 1953 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1954 1955 /* set beacon interval (in 1/16ms unit) */ 1956 tmp |= vap->iv_bss->ni_intval * 16; 1957 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1958 1959 switch (vap->iv_opmode) { 1960 case IEEE80211_M_STA: 1961 /* 1962 * Local TSF is always updated with remote TSF on beacon 1963 * reception. 1964 */ 1965 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 1966 break; 1967 case IEEE80211_M_IBSS: 1968 /* 1969 * Local TSF is updated with remote TSF on beacon reception 1970 * only if the remote TSF is greater than local TSF. 1971 */ 1972 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 1973 tmp |= RT2573_BCN_TX_EN; 1974 break; 1975 case IEEE80211_M_HOSTAP: 1976 /* SYNC with nobody */ 1977 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 1978 tmp |= RT2573_BCN_TX_EN; 1979 break; 1980 default: 1981 device_printf(sc->sc_dev, 1982 "Enabling TSF failed. undefined opmode %d\n", 1983 vap->iv_opmode); 1984 return EINVAL; 1985 } 1986 1987 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 1988 return EIO; 1989 1990 return 0; 1991} 1992 1993static void 1994rum_enable_tsf(struct rum_softc *sc) 1995{ 1996 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 1997 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 1998} 1999 2000static void 2001rum_abort_tsf_sync(struct rum_softc *sc) 2002{ 2003 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 2004} 2005 2006static void 2007rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 2008{ 2009 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 2010} 2011 2012static void 2013rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rvp_id) 2014{ 2015 struct ieee80211com *ic = &sc->sc_ic; 2016 uint8_t slottime; 2017 2018 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 2019 2020 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 2021 2022 DPRINTF("setting slot time to %uus\n", slottime); 2023} 2024 2025static void 2026rum_update_slot(struct ieee80211com *ic) 2027{ 2028 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, rum_update_slot_cb); 2029} 2030 2031static void 2032rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 2033{ 2034 2035 rum_write(sc, RT2573_MAC_CSR4, 2036 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 2037 rum_write(sc, RT2573_MAC_CSR5, 2038 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 2039} 2040 2041static void 2042rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 2043{ 2044 2045 rum_write(sc, RT2573_MAC_CSR2, 2046 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 2047 rum_write(sc, RT2573_MAC_CSR3, 2048 addr[4] | addr[5] << 8 | 0xff << 16); 2049} 2050 2051static void 2052rum_setpromisc(struct rum_softc *sc) 2053{ 2054 struct ieee80211com *ic = &sc->sc_ic; 2055 2056 if (ic->ic_promisc == 0) 2057 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2058 else 2059 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 2060 2061 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 2062 "entering" : "leaving"); 2063} 2064 2065static void 2066rum_update_promisc(struct ieee80211com *ic) 2067{ 2068 struct rum_softc *sc = ic->ic_softc; 2069 2070 RUM_LOCK(sc); 2071 if (sc->sc_running) 2072 rum_setpromisc(sc); 2073 RUM_UNLOCK(sc); 2074} 2075 2076static void 2077rum_update_mcast(struct ieee80211com *ic) 2078{ 2079 /* Ignore. */ 2080} 2081 2082static const char * 2083rum_get_rf(int rev) 2084{ 2085 switch (rev) { 2086 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 2087 case RT2573_RF_2528: return "RT2528"; 2088 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 2089 case RT2573_RF_5226: return "RT5226"; 2090 default: return "unknown"; 2091 } 2092} 2093 2094static void 2095rum_read_eeprom(struct rum_softc *sc) 2096{ 2097 uint16_t val; 2098#ifdef RUM_DEBUG 2099 int i; 2100#endif 2101 2102 /* read MAC address */ 2103 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 2104 2105 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 2106 val = le16toh(val); 2107 sc->rf_rev = (val >> 11) & 0x1f; 2108 sc->hw_radio = (val >> 10) & 0x1; 2109 sc->rx_ant = (val >> 4) & 0x3; 2110 sc->tx_ant = (val >> 2) & 0x3; 2111 sc->nb_ant = val & 0x3; 2112 2113 DPRINTF("RF revision=%d\n", sc->rf_rev); 2114 2115 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 2116 val = le16toh(val); 2117 sc->ext_5ghz_lna = (val >> 6) & 0x1; 2118 sc->ext_2ghz_lna = (val >> 4) & 0x1; 2119 2120 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 2121 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 2122 2123 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 2124 val = le16toh(val); 2125 if ((val & 0xff) != 0xff) 2126 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 2127 2128 /* Only [-10, 10] is valid */ 2129 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 2130 sc->rssi_2ghz_corr = 0; 2131 2132 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 2133 val = le16toh(val); 2134 if ((val & 0xff) != 0xff) 2135 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 2136 2137 /* Only [-10, 10] is valid */ 2138 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 2139 sc->rssi_5ghz_corr = 0; 2140 2141 if (sc->ext_2ghz_lna) 2142 sc->rssi_2ghz_corr -= 14; 2143 if (sc->ext_5ghz_lna) 2144 sc->rssi_5ghz_corr -= 14; 2145 2146 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2147 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2148 2149 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2150 val = le16toh(val); 2151 if ((val & 0xff) != 0xff) 2152 sc->rffreq = val & 0xff; 2153 2154 DPRINTF("RF freq=%d\n", sc->rffreq); 2155 2156 /* read Tx power for all a/b/g channels */ 2157 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2158 /* XXX default Tx power for 802.11a channels */ 2159 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2160#ifdef RUM_DEBUG 2161 for (i = 0; i < 14; i++) 2162 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2163#endif 2164 2165 /* read default values for BBP registers */ 2166 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2167#ifdef RUM_DEBUG 2168 for (i = 0; i < 14; i++) { 2169 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2170 continue; 2171 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2172 sc->bbp_prom[i].val); 2173 } 2174#endif 2175} 2176 2177static int 2178rum_bbp_wakeup(struct rum_softc *sc) 2179{ 2180 unsigned int ntries; 2181 2182 for (ntries = 0; ntries < 100; ntries++) { 2183 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2184 break; 2185 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2186 if (rum_pause(sc, hz / 100)) 2187 break; 2188 } 2189 if (ntries == 100) { 2190 device_printf(sc->sc_dev, 2191 "timeout waiting for BBP/RF to wakeup\n"); 2192 return (ETIMEDOUT); 2193 } 2194 2195 return (0); 2196} 2197 2198static int 2199rum_bbp_init(struct rum_softc *sc) 2200{ 2201 int i, ntries; 2202 2203 /* wait for BBP to be ready */ 2204 for (ntries = 0; ntries < 100; ntries++) { 2205 const uint8_t val = rum_bbp_read(sc, 0); 2206 if (val != 0 && val != 0xff) 2207 break; 2208 if (rum_pause(sc, hz / 100)) 2209 break; 2210 } 2211 if (ntries == 100) { 2212 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2213 return EIO; 2214 } 2215 2216 /* initialize BBP registers to default values */ 2217 for (i = 0; i < nitems(rum_def_bbp); i++) 2218 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2219 2220 /* write vendor-specific BBP values (from EEPROM) */ 2221 for (i = 0; i < 16; i++) { 2222 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2223 continue; 2224 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2225 } 2226 2227 return 0; 2228} 2229 2230static void 2231rum_clr_shkey_regs(struct rum_softc *sc) 2232{ 2233 rum_write(sc, RT2573_SEC_CSR0, 0); 2234 rum_write(sc, RT2573_SEC_CSR1, 0); 2235 rum_write(sc, RT2573_SEC_CSR5, 0); 2236} 2237 2238static int 2239rum_init(struct rum_softc *sc) 2240{ 2241 struct ieee80211com *ic = &sc->sc_ic; 2242 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2243 uint32_t tmp; 2244 int i, ret; 2245 2246 RUM_LOCK(sc); 2247 if (sc->sc_running) { 2248 ret = 0; 2249 goto end; 2250 } 2251 2252 /* initialize MAC registers to default values */ 2253 for (i = 0; i < nitems(rum_def_mac); i++) 2254 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2255 2256 /* set host ready */ 2257 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2258 rum_write(sc, RT2573_MAC_CSR1, 0); 2259 2260 /* wait for BBP/RF to wakeup */ 2261 if ((ret = rum_bbp_wakeup(sc)) != 0) 2262 goto end; 2263 2264 if ((ret = rum_bbp_init(sc)) != 0) 2265 goto end; 2266 2267 /* select default channel */ 2268 rum_select_band(sc, ic->ic_curchan); 2269 rum_select_antenna(sc); 2270 rum_set_chan(sc, ic->ic_curchan); 2271 2272 /* clear STA registers */ 2273 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2274 2275 /* clear security registers (if required) */ 2276 if (sc->sc_clr_shkeys == 0) { 2277 rum_clr_shkey_regs(sc); 2278 sc->sc_clr_shkeys = 1; 2279 } 2280 2281 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2282 2283 /* initialize ASIC */ 2284 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2285 2286 /* 2287 * Allocate Tx and Rx xfer queues. 2288 */ 2289 rum_setup_tx_list(sc); 2290 2291 /* update Rx filter */ 2292 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2293 2294 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2295 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2296 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2297 RT2573_DROP_ACKCTS; 2298 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2299 tmp |= RT2573_DROP_TODS; 2300 if (ic->ic_promisc == 0) 2301 tmp |= RT2573_DROP_NOT_TO_ME; 2302 } 2303 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2304 2305 sc->sc_running = 1; 2306 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2307 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2308 2309end: RUM_UNLOCK(sc); 2310 2311 if (ret != 0) 2312 rum_stop(sc); 2313 2314 return ret; 2315} 2316 2317static void 2318rum_stop(struct rum_softc *sc) 2319{ 2320 2321 RUM_LOCK(sc); 2322 if (!sc->sc_running) { 2323 RUM_UNLOCK(sc); 2324 return; 2325 } 2326 sc->sc_running = 0; 2327 RUM_UNLOCK(sc); 2328 2329 /* 2330 * Drain the USB transfers, if not already drained: 2331 */ 2332 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2333 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2334 2335 RUM_LOCK(sc); 2336 rum_unsetup_tx_list(sc); 2337 2338 /* disable Rx */ 2339 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2340 2341 /* reset ASIC */ 2342 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2343 rum_write(sc, RT2573_MAC_CSR1, 0); 2344 RUM_UNLOCK(sc); 2345} 2346 2347static void 2348rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2349{ 2350 struct usb_device_request req; 2351 uint16_t reg = RT2573_MCU_CODE_BASE; 2352 usb_error_t err; 2353 2354 /* copy firmware image into NIC */ 2355 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2356 err = rum_write(sc, reg, UGETDW(ucode)); 2357 if (err) { 2358 /* firmware already loaded ? */ 2359 device_printf(sc->sc_dev, "Firmware load " 2360 "failure! (ignored)\n"); 2361 break; 2362 } 2363 } 2364 2365 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2366 req.bRequest = RT2573_MCU_CNTL; 2367 USETW(req.wValue, RT2573_MCU_RUN); 2368 USETW(req.wIndex, 0); 2369 USETW(req.wLength, 0); 2370 2371 err = rum_do_request(sc, &req, NULL); 2372 if (err != 0) { 2373 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2374 usbd_errstr(err)); 2375 } 2376 2377 /* give the chip some time to boot */ 2378 rum_pause(sc, hz / 8); 2379} 2380 2381static int 2382rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2383{ 2384 struct ieee80211com *ic = vap->iv_ic; 2385 struct rum_vap *rvp = RUM_VAP(vap); 2386 struct mbuf *m = rvp->bcn_mbuf; 2387 const struct ieee80211_txparam *tp; 2388 struct rum_tx_desc desc; 2389 2390 RUM_LOCK_ASSERT(sc); 2391 2392 if (m == NULL) 2393 return EINVAL; 2394 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2395 return EINVAL; 2396 2397 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2398 rum_setup_tx_desc(sc, &desc, NULL, RT2573_TX_TIMESTAMP, 2399 RT2573_TX_HWSEQ, 0, m->m_pkthdr.len, tp->mgmtrate); 2400 2401 /* copy the Tx descriptor into NIC memory */ 2402 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2403 RT2573_TX_DESC_SIZE) != 0) 2404 return EIO; 2405 2406 /* copy beacon header and payload into NIC memory */ 2407 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2408 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2409 return EIO; 2410 2411 return 0; 2412} 2413 2414static int 2415rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2416{ 2417 struct rum_vap *rvp = RUM_VAP(vap); 2418 struct ieee80211_node *ni = vap->iv_bss; 2419 struct mbuf *m; 2420 2421 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2422 return EINVAL; 2423 2424 m = ieee80211_beacon_alloc(ni, &vap->iv_bcn_off); 2425 if (m == NULL) 2426 return ENOMEM; 2427 2428 if (rvp->bcn_mbuf != NULL) 2429 m_freem(rvp->bcn_mbuf); 2430 2431 rvp->bcn_mbuf = m; 2432 2433 return (rum_set_beacon(sc, vap)); 2434} 2435 2436static void 2437rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data, 2438 uint8_t rvp_id) 2439{ 2440 struct ieee80211vap *vap = data->vap; 2441 2442 rum_set_beacon(sc, vap); 2443} 2444 2445static void 2446rum_update_beacon(struct ieee80211vap *vap, int item) 2447{ 2448 struct ieee80211com *ic = vap->iv_ic; 2449 struct rum_softc *sc = ic->ic_softc; 2450 struct rum_vap *rvp = RUM_VAP(vap); 2451 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 2452 struct ieee80211_node *ni = vap->iv_bss; 2453 struct mbuf *m = rvp->bcn_mbuf; 2454 int mcast = 0; 2455 2456 RUM_LOCK(sc); 2457 if (m == NULL) { 2458 m = ieee80211_beacon_alloc(ni, bo); 2459 if (m == NULL) { 2460 device_printf(sc->sc_dev, 2461 "%s: could not allocate beacon frame\n", __func__); 2462 RUM_UNLOCK(sc); 2463 return; 2464 } 2465 rvp->bcn_mbuf = m; 2466 } 2467 2468 switch (item) { 2469 case IEEE80211_BEACON_ERP: 2470 rum_update_slot(ic); 2471 break; 2472 case IEEE80211_BEACON_TIM: 2473 mcast = 1; /*TODO*/ 2474 break; 2475 default: 2476 break; 2477 } 2478 RUM_UNLOCK(sc); 2479 2480 setbit(bo->bo_flags, item); 2481 ieee80211_beacon_update(ni, bo, m, mcast); 2482 2483 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, rum_update_beacon_cb); 2484} 2485 2486static int 2487rum_common_key_set(struct rum_softc *sc, struct ieee80211_key *k, 2488 uint16_t base) 2489{ 2490 2491 if (rum_write_multi(sc, base, k->wk_key, k->wk_keylen)) 2492 return EIO; 2493 2494 if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_TKIP) { 2495 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE, 2496 k->wk_txmic, 8)) 2497 return EIO; 2498 if (rum_write_multi(sc, base + IEEE80211_KEYBUF_SIZE + 8, 2499 k->wk_rxmic, 8)) 2500 return EIO; 2501 } 2502 2503 return 0; 2504} 2505 2506static void 2507rum_group_key_set_cb(struct rum_softc *sc, union sec_param *data, 2508 uint8_t rvp_id) 2509{ 2510 struct ieee80211_key *k = &data->key; 2511 uint8_t mode; 2512 2513 if (sc->sc_clr_shkeys == 0) { 2514 rum_clr_shkey_regs(sc); 2515 sc->sc_clr_shkeys = 1; 2516 } 2517 2518 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2519 if (mode == 0) 2520 goto print_err; 2521 2522 DPRINTFN(1, "setting group key %d for vap %d, mode %d " 2523 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2524 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2525 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2526 2527 /* Install the key. */ 2528 if (rum_common_key_set(sc, k, RT2573_SKEY(rvp_id, k->wk_keyix)) != 0) 2529 goto print_err; 2530 2531 /* Set cipher mode. */ 2532 if (rum_modbits(sc, rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2533 mode << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX, 2534 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX) 2535 != 0) 2536 goto print_err; 2537 2538 /* Mark this key as valid. */ 2539 if (rum_setbits(sc, RT2573_SEC_CSR0, 2540 1 << (rvp_id * RT2573_SKEY_MAX + k->wk_keyix)) != 0) 2541 goto print_err; 2542 2543 return; 2544 2545print_err: 2546 device_printf(sc->sc_dev, "%s: cannot set group key %d for vap %d\n", 2547 __func__, k->wk_keyix, rvp_id); 2548} 2549 2550static void 2551rum_group_key_del_cb(struct rum_softc *sc, union sec_param *data, 2552 uint8_t rvp_id) 2553{ 2554 struct ieee80211_key *k = &data->key; 2555 2556 DPRINTF("%s: removing group key %d for vap %d\n", __func__, 2557 k->wk_keyix, rvp_id); 2558 rum_clrbits(sc, 2559 rvp_id < 2 ? RT2573_SEC_CSR1 : RT2573_SEC_CSR5, 2560 RT2573_MODE_MASK << (rvp_id % 2 + k->wk_keyix) * RT2573_SKEY_MAX); 2561 rum_clrbits(sc, RT2573_SEC_CSR0, 2562 rvp_id * RT2573_SKEY_MAX + k->wk_keyix); 2563} 2564 2565static void 2566rum_pair_key_set_cb(struct rum_softc *sc, union sec_param *data, 2567 uint8_t rvp_id) 2568{ 2569 struct ieee80211_key *k = &data->key; 2570 uint8_t buf[IEEE80211_ADDR_LEN + 1]; 2571 uint8_t mode; 2572 2573 mode = rum_crypto_mode(sc, k->wk_cipher->ic_cipher, k->wk_keylen); 2574 if (mode == 0) 2575 goto print_err; 2576 2577 DPRINTFN(1, "setting pairwise key %d for vap %d, mode %d " 2578 "(tx %s, rx %s)\n", k->wk_keyix, rvp_id, mode, 2579 (k->wk_flags & IEEE80211_KEY_XMIT) ? "on" : "off", 2580 (k->wk_flags & IEEE80211_KEY_RECV) ? "on" : "off"); 2581 2582 /* Install the key. */ 2583 if (rum_common_key_set(sc, k, RT2573_PKEY(k->wk_keyix)) != 0) 2584 goto print_err; 2585 2586 IEEE80211_ADDR_COPY(buf, k->wk_macaddr); 2587 buf[IEEE80211_ADDR_LEN] = mode; 2588 2589 /* Set transmitter address and cipher mode. */ 2590 if (rum_write_multi(sc, RT2573_ADDR_ENTRY(k->wk_keyix), 2591 buf, sizeof buf) != 0) 2592 goto print_err; 2593 2594 /* Enable key table lookup for this vap. */ 2595 if (sc->vap_key_count[rvp_id]++ == 0) 2596 if (rum_setbits(sc, RT2573_SEC_CSR4, 1 << rvp_id) != 0) 2597 goto print_err; 2598 2599 /* Mark this key as valid. */ 2600 if (rum_setbits(sc, 2601 k->wk_keyix < 32 ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2602 1 << (k->wk_keyix % 32)) != 0) 2603 goto print_err; 2604 2605 return; 2606 2607print_err: 2608 device_printf(sc->sc_dev, 2609 "%s: cannot set pairwise key %d, vap %d\n", __func__, k->wk_keyix, 2610 rvp_id); 2611} 2612 2613static void 2614rum_pair_key_del_cb(struct rum_softc *sc, union sec_param *data, 2615 uint8_t rvp_id) 2616{ 2617 struct ieee80211_key *k = &data->key; 2618 2619 DPRINTF("%s: removing key %d\n", __func__, k->wk_keyix); 2620 rum_clrbits(sc, (k->wk_keyix < 32) ? RT2573_SEC_CSR2 : RT2573_SEC_CSR3, 2621 1 << (k->wk_keyix % 32)); 2622 sc->keys_bmap &= ~(1 << k->wk_keyix); 2623 if (--sc->vap_key_count[rvp_id] == 0) 2624 rum_clrbits(sc, RT2573_SEC_CSR4, 1 << rvp_id); 2625} 2626 2627static int 2628rum_key_alloc(struct ieee80211vap *vap, struct ieee80211_key *k, 2629 ieee80211_keyix *keyix, ieee80211_keyix *rxkeyix) 2630{ 2631 struct rum_softc *sc = vap->iv_ic->ic_softc; 2632 uint8_t i; 2633 2634 if (!(&vap->iv_nw_keys[0] <= k && 2635 k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])) { 2636 if (!(k->wk_flags & IEEE80211_KEY_SWCRYPT)) { 2637 RUM_LOCK(sc); 2638 for (i = 0; i < RT2573_ADDR_MAX; i++) { 2639 if ((sc->keys_bmap & (1 << i)) == 0) { 2640 sc->keys_bmap |= 1 << i; 2641 *keyix = i; 2642 break; 2643 } 2644 } 2645 RUM_UNLOCK(sc); 2646 if (i == RT2573_ADDR_MAX) { 2647 device_printf(sc->sc_dev, 2648 "%s: no free space in the key table\n", 2649 __func__); 2650 return 0; 2651 } 2652 } else 2653 *keyix = 0; 2654 } else { 2655 *keyix = k - vap->iv_nw_keys; 2656 } 2657 *rxkeyix = *keyix; 2658 return 1; 2659} 2660 2661static int 2662rum_key_set(struct ieee80211vap *vap, const struct ieee80211_key *k, 2663 const uint8_t mac[IEEE80211_ADDR_LEN]) 2664{ 2665 struct rum_softc *sc = vap->iv_ic->ic_softc; 2666 int group; 2667 2668 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 2669 /* Not for us. */ 2670 return 1; 2671 } 2672 2673 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 2674 2675 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 2676 group ? rum_group_key_set_cb : rum_pair_key_set_cb); 2677} 2678 2679static int 2680rum_key_delete(struct ieee80211vap *vap, const struct ieee80211_key *k) 2681{ 2682 struct rum_softc *sc = vap->iv_ic->ic_softc; 2683 int group; 2684 2685 if (k->wk_flags & IEEE80211_KEY_SWCRYPT) { 2686 /* Not for us. */ 2687 return 1; 2688 } 2689 2690 group = k >= &vap->iv_nw_keys[0] && k < &vap->iv_nw_keys[IEEE80211_WEP_NKID]; 2691 2692 return !rum_cmd_sleepable(sc, k, sizeof(*k), 0, 2693 group ? rum_group_key_del_cb : rum_pair_key_del_cb); 2694} 2695 2696static int 2697rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2698 const struct ieee80211_bpf_params *params) 2699{ 2700 struct rum_softc *sc = ni->ni_ic->ic_softc; 2701 int ret; 2702 2703 RUM_LOCK(sc); 2704 /* prevent management frames from being sent if we're not ready */ 2705 if (!sc->sc_running) { 2706 ret = ENETDOWN; 2707 goto bad; 2708 } 2709 if (sc->tx_nfree < RUM_TX_MINFREE) { 2710 ret = EIO; 2711 goto bad; 2712 } 2713 2714 if (params == NULL) { 2715 /* 2716 * Legacy path; interpret frame contents to decide 2717 * precisely how to send the frame. 2718 */ 2719 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 2720 goto bad; 2721 } else { 2722 /* 2723 * Caller supplied explicit parameters to use in 2724 * sending the frame. 2725 */ 2726 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 2727 goto bad; 2728 } 2729 RUM_UNLOCK(sc); 2730 2731 return 0; 2732bad: 2733 RUM_UNLOCK(sc); 2734 m_freem(m); 2735 ieee80211_free_node(ni); 2736 return ret; 2737} 2738 2739static void 2740rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2741{ 2742 struct ieee80211vap *vap = ni->ni_vap; 2743 struct rum_vap *rvp = RUM_VAP(vap); 2744 2745 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2746 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2747 2748 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2749} 2750 2751static void 2752rum_ratectl_timeout(void *arg) 2753{ 2754 struct rum_vap *rvp = arg; 2755 struct ieee80211vap *vap = &rvp->vap; 2756 struct ieee80211com *ic = vap->iv_ic; 2757 2758 ieee80211_runtask(ic, &rvp->ratectl_task); 2759} 2760 2761static void 2762rum_ratectl_task(void *arg, int pending) 2763{ 2764 struct rum_vap *rvp = arg; 2765 struct ieee80211vap *vap = &rvp->vap; 2766 struct ieee80211com *ic = vap->iv_ic; 2767 struct rum_softc *sc = ic->ic_softc; 2768 struct ieee80211_node *ni; 2769 int ok, fail; 2770 int sum, retrycnt; 2771 2772 RUM_LOCK(sc); 2773 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2774 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2775 2776 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2777 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2778 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2779 sum = ok+fail; 2780 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2781 2782 ni = ieee80211_ref_node(vap->iv_bss); 2783 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2784 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2785 ieee80211_free_node(ni); 2786 2787 /* count TX retry-fail as Tx errors */ 2788 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2789 2790 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2791 RUM_UNLOCK(sc); 2792} 2793 2794static void 2795rum_scan_start(struct ieee80211com *ic) 2796{ 2797 struct rum_softc *sc = ic->ic_softc; 2798 2799 RUM_LOCK(sc); 2800 rum_abort_tsf_sync(sc); 2801 rum_set_bssid(sc, ieee80211broadcastaddr); 2802 RUM_UNLOCK(sc); 2803 2804} 2805 2806static void 2807rum_scan_end(struct ieee80211com *ic) 2808{ 2809 struct rum_softc *sc = ic->ic_softc; 2810 2811 RUM_LOCK(sc); 2812 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 2813 rum_enable_tsf_sync(sc); 2814 else 2815 rum_enable_tsf(sc); 2816 rum_set_bssid(sc, sc->sc_bssid); 2817 RUM_UNLOCK(sc); 2818 2819} 2820 2821static void 2822rum_set_channel(struct ieee80211com *ic) 2823{ 2824 struct rum_softc *sc = ic->ic_softc; 2825 2826 RUM_LOCK(sc); 2827 rum_set_chan(sc, ic->ic_curchan); 2828 RUM_UNLOCK(sc); 2829} 2830 2831static int 2832rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2833{ 2834 struct ieee80211com *ic = &sc->sc_ic; 2835 int lna, agc, rssi; 2836 2837 lna = (raw >> 5) & 0x3; 2838 agc = raw & 0x1f; 2839 2840 if (lna == 0) { 2841 /* 2842 * No RSSI mapping 2843 * 2844 * NB: Since RSSI is relative to noise floor, -1 is 2845 * adequate for caller to know error happened. 2846 */ 2847 return -1; 2848 } 2849 2850 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2851 2852 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2853 rssi += sc->rssi_2ghz_corr; 2854 2855 if (lna == 1) 2856 rssi -= 64; 2857 else if (lna == 2) 2858 rssi -= 74; 2859 else if (lna == 3) 2860 rssi -= 90; 2861 } else { 2862 rssi += sc->rssi_5ghz_corr; 2863 2864 if (!sc->ext_5ghz_lna && lna != 1) 2865 rssi += 4; 2866 2867 if (lna == 1) 2868 rssi -= 64; 2869 else if (lna == 2) 2870 rssi -= 86; 2871 else if (lna == 3) 2872 rssi -= 100; 2873 } 2874 return rssi; 2875} 2876 2877static int 2878rum_pause(struct rum_softc *sc, int timeout) 2879{ 2880 2881 usb_pause_mtx(&sc->sc_mtx, timeout); 2882 return (0); 2883} 2884 2885static device_method_t rum_methods[] = { 2886 /* Device interface */ 2887 DEVMETHOD(device_probe, rum_match), 2888 DEVMETHOD(device_attach, rum_attach), 2889 DEVMETHOD(device_detach, rum_detach), 2890 DEVMETHOD_END 2891}; 2892 2893static driver_t rum_driver = { 2894 .name = "rum", 2895 .methods = rum_methods, 2896 .size = sizeof(struct rum_softc), 2897}; 2898 2899static devclass_t rum_devclass; 2900 2901DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2902MODULE_DEPEND(rum, wlan, 1, 1, 1); 2903MODULE_DEPEND(rum, usb, 1, 1, 1); 2904MODULE_VERSION(rum, 1); 2905