1 /* $FreeBSD: src/sys/dev/usb/wlan/if_rum.c,v 1.51 2013/03/22 02:25:33 svnexp Exp $ */ 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 /*- 22 * Ralink Technology RT2501USB/RT2601USB chipset driver 23 * http://www.ralinktech.com.tw/ 24 */ 25 26 #include "opt_inet.h" 27 28 #include <sys/param.h> 29 #include <sys/sockio.h> 30 #include <sys/sysctl.h> 31 #include <sys/lock.h> 32 #include <sys/mbuf.h> 33 #include <sys/kernel.h> 34 #include <sys/socket.h> 35 #include <sys/systm.h> 36 #include <sys/malloc.h> 37 #include <sys/module.h> 38 #include <sys/bus.h> 39 #include <sys/endian.h> 40 41 #include <sys/rman.h> 42 43 #include <net/bpf.h> 44 #include <net/if.h> 45 #include <net/if_arp.h> 46 #include <net/ethernet.h> 47 #include <net/if_dl.h> 48 #include <net/if_media.h> 49 #include <net/if_types.h> 50 #include <net/ifq_var.h> 51 52 #ifdef INET 53 #include <netinet/in.h> 54 #include <netinet/in_systm.h> 55 #include <netinet/in_var.h> 56 #include <netinet/if_ether.h> 57 #include <netinet/ip.h> 58 #endif 59 60 #include <netproto/802_11/ieee80211_var.h> 61 #include <netproto/802_11/ieee80211_regdomain.h> 62 #include <netproto/802_11/ieee80211_radiotap.h> 63 #include <netproto/802_11/ieee80211_ratectl.h> 64 65 #include <bus/u4b/usb.h> 66 #include <bus/u4b/usbdi.h> 67 #include "usbdevs.h" 68 69 #define USB_DEBUG_VAR rum_debug 70 #include <bus/u4b/usb_debug.h> 71 72 #include <bus/u4b/wlan/if_rumreg.h> 73 #include <bus/u4b/wlan/if_rumvar.h> 74 #include <bus/u4b/wlan/if_rumfw.h> 75 76 #ifdef USB_DEBUG 77 static int rum_debug = 0; 78 79 static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 80 SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 81 "Debug level"); 82 #endif 83 84 #define N(a) ((int)(sizeof (a) / sizeof ((a)[0]))) 85 86 static const STRUCT_USB_HOST_ID rum_devs[] = { 87 #define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 88 RUM_DEV(ABOCOM, HWU54DM), 89 RUM_DEV(ABOCOM, RT2573_2), 90 RUM_DEV(ABOCOM, RT2573_3), 91 RUM_DEV(ABOCOM, RT2573_4), 92 RUM_DEV(ABOCOM, WUG2700), 93 RUM_DEV(AMIT, CGWLUSB2GO), 94 RUM_DEV(ASUS, RT2573_1), 95 RUM_DEV(ASUS, RT2573_2), 96 RUM_DEV(BELKIN, F5D7050A), 97 RUM_DEV(BELKIN, F5D9050V3), 98 RUM_DEV(CISCOLINKSYS, WUSB54GC), 99 RUM_DEV(CISCOLINKSYS, WUSB54GR), 100 RUM_DEV(CONCEPTRONIC2, C54RU2), 101 RUM_DEV(COREGA, CGWLUSB2GL), 102 RUM_DEV(COREGA, CGWLUSB2GPX), 103 RUM_DEV(DICKSMITH, CWD854F), 104 RUM_DEV(DICKSMITH, RT2573), 105 RUM_DEV(EDIMAX, EW7318USG), 106 RUM_DEV(DLINK2, DWLG122C1), 107 RUM_DEV(DLINK2, WUA1340), 108 RUM_DEV(DLINK2, DWA111), 109 RUM_DEV(DLINK2, DWA110), 110 RUM_DEV(GIGABYTE, GNWB01GS), 111 RUM_DEV(GIGABYTE, GNWI05GS), 112 RUM_DEV(GIGASET, RT2573), 113 RUM_DEV(GOODWAY, RT2573), 114 RUM_DEV(GUILLEMOT, HWGUSB254LB), 115 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 116 RUM_DEV(HUAWEI3COM, WUB320G), 117 RUM_DEV(MELCO, G54HP), 118 RUM_DEV(MELCO, SG54HP), 119 RUM_DEV(MELCO, SG54HG), 120 RUM_DEV(MELCO, WLIUCG), 121 RUM_DEV(MELCO, WLRUCG), 122 RUM_DEV(MELCO, WLRUCGAOSS), 123 RUM_DEV(MSI, RT2573_1), 124 RUM_DEV(MSI, RT2573_2), 125 RUM_DEV(MSI, RT2573_3), 126 RUM_DEV(MSI, RT2573_4), 127 RUM_DEV(NOVATECH, RT2573), 128 RUM_DEV(PLANEX2, GWUS54HP), 129 RUM_DEV(PLANEX2, GWUS54MINI2), 130 RUM_DEV(PLANEX2, GWUSMM), 131 RUM_DEV(QCOM, RT2573), 132 RUM_DEV(QCOM, RT2573_2), 133 RUM_DEV(QCOM, RT2573_3), 134 RUM_DEV(RALINK, RT2573), 135 RUM_DEV(RALINK, RT2573_2), 136 RUM_DEV(RALINK, RT2671), 137 RUM_DEV(SITECOMEU, WL113R2), 138 RUM_DEV(SITECOMEU, WL172), 139 RUM_DEV(SPARKLAN, RT2573), 140 RUM_DEV(SURECOM, RT2573), 141 #undef RUM_DEV 142 }; 143 144 static device_probe_t rum_match; 145 static device_attach_t rum_attach; 146 static device_detach_t rum_detach; 147 148 static usb_callback_t rum_bulk_read_callback; 149 static usb_callback_t rum_bulk_write_callback; 150 151 static usb_error_t rum_do_request(struct rum_softc *sc, 152 struct usb_device_request *req, void *data); 153 static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 154 const char [IFNAMSIZ], int, 155 enum ieee80211_opmode, 156 int, const uint8_t [IEEE80211_ADDR_LEN], 157 const uint8_t [IEEE80211_ADDR_LEN]); 158 static void rum_vap_delete(struct ieee80211vap *); 159 static void rum_tx_free(struct rum_tx_data *, int); 160 static void rum_setup_tx_list(struct rum_softc *); 161 static void rum_unsetup_tx_list(struct rum_softc *); 162 static int rum_newstate(struct ieee80211vap *, 163 enum ieee80211_state, int); 164 static void rum_setup_tx_desc(struct rum_softc *, 165 struct rum_tx_desc *, uint32_t, uint16_t, int, 166 int); 167 static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 168 struct ieee80211_node *); 169 static int rum_tx_raw(struct rum_softc *, struct mbuf *, 170 struct ieee80211_node *, 171 const struct ieee80211_bpf_params *); 172 static int rum_tx_data(struct rum_softc *, struct mbuf *, 173 struct ieee80211_node *); 174 static void rum_start_locked(struct ifnet *); 175 static void rum_start(struct ifnet *, struct ifaltq_subque *); 176 static int rum_ioctl(struct ifnet *, u_long, caddr_t, 177 struct ucred *); 178 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 179 int); 180 static uint32_t rum_read(struct rum_softc *, uint16_t); 181 static void rum_read_multi(struct rum_softc *, uint16_t, void *, 182 int); 183 static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 184 static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 185 size_t); 186 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 187 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 188 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 189 static void rum_select_antenna(struct rum_softc *); 190 static void rum_enable_mrr(struct rum_softc *); 191 static void rum_set_txpreamble(struct rum_softc *); 192 static void rum_set_basicrates(struct rum_softc *); 193 static void rum_select_band(struct rum_softc *, 194 struct ieee80211_channel *); 195 static void rum_set_chan(struct rum_softc *, 196 struct ieee80211_channel *); 197 static void rum_enable_tsf_sync(struct rum_softc *); 198 static void rum_enable_tsf(struct rum_softc *); 199 static void rum_update_slot(struct ifnet *); 200 static void rum_set_bssid(struct rum_softc *, const uint8_t *); 201 static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 202 static void rum_update_mcast(struct ifnet *); 203 static void rum_update_promisc(struct ifnet *); 204 static void rum_setpromisc(struct rum_softc *); 205 static const char *rum_get_rf(int); 206 static void rum_read_eeprom(struct rum_softc *); 207 static int rum_bbp_init(struct rum_softc *); 208 static void rum_init_locked(struct rum_softc *); 209 static void rum_init(void *); 210 static void rum_stop(struct rum_softc *); 211 static void rum_load_microcode(struct rum_softc *, const uint8_t *, 212 size_t); 213 static void rum_prepare_beacon(struct rum_softc *, 214 struct ieee80211vap *); 215 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 216 const struct ieee80211_bpf_params *); 217 static void rum_scan_start(struct ieee80211com *); 218 static void rum_scan_end(struct ieee80211com *); 219 static void rum_set_channel(struct ieee80211com *); 220 static int rum_get_rssi(struct rum_softc *, uint8_t); 221 static void rum_ratectl_start(struct rum_softc *, 222 struct ieee80211_node *); 223 static void rum_ratectl_timeout(void *); 224 static void rum_ratectl_task(void *, int); 225 static int rum_pause(struct rum_softc *, int); 226 227 static const struct { 228 uint32_t reg; 229 uint32_t val; 230 } rum_def_mac[] = { 231 { RT2573_TXRX_CSR0, 0x025fb032 }, 232 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 233 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 234 { RT2573_TXRX_CSR3, 0x00858687 }, 235 { RT2573_TXRX_CSR7, 0x2e31353b }, 236 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 237 { RT2573_TXRX_CSR15, 0x0000000f }, 238 { RT2573_MAC_CSR6, 0x00000fff }, 239 { RT2573_MAC_CSR8, 0x016c030a }, 240 { RT2573_MAC_CSR10, 0x00000718 }, 241 { RT2573_MAC_CSR12, 0x00000004 }, 242 { RT2573_MAC_CSR13, 0x00007f00 }, 243 { RT2573_SEC_CSR0, 0x00000000 }, 244 { RT2573_SEC_CSR1, 0x00000000 }, 245 { RT2573_SEC_CSR5, 0x00000000 }, 246 { RT2573_PHY_CSR1, 0x000023b0 }, 247 { RT2573_PHY_CSR5, 0x00040a06 }, 248 { RT2573_PHY_CSR6, 0x00080606 }, 249 { RT2573_PHY_CSR7, 0x00000408 }, 250 { RT2573_AIFSN_CSR, 0x00002273 }, 251 { RT2573_CWMIN_CSR, 0x00002344 }, 252 { RT2573_CWMAX_CSR, 0x000034aa } 253 }; 254 255 static const struct { 256 uint8_t reg; 257 uint8_t val; 258 } rum_def_bbp[] = { 259 { 3, 0x80 }, 260 { 15, 0x30 }, 261 { 17, 0x20 }, 262 { 21, 0xc8 }, 263 { 22, 0x38 }, 264 { 23, 0x06 }, 265 { 24, 0xfe }, 266 { 25, 0x0a }, 267 { 26, 0x0d }, 268 { 32, 0x0b }, 269 { 34, 0x12 }, 270 { 37, 0x07 }, 271 { 39, 0xf8 }, 272 { 41, 0x60 }, 273 { 53, 0x10 }, 274 { 54, 0x18 }, 275 { 60, 0x10 }, 276 { 61, 0x04 }, 277 { 62, 0x04 }, 278 { 75, 0xfe }, 279 { 86, 0xfe }, 280 { 88, 0xfe }, 281 { 90, 0x0f }, 282 { 99, 0x00 }, 283 { 102, 0x16 }, 284 { 107, 0x04 } 285 }; 286 287 static const struct rfprog { 288 uint8_t chan; 289 uint32_t r1, r2, r3, r4; 290 } rum_rf5226[] = { 291 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 292 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 293 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 294 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 295 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 296 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 297 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 298 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 299 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 300 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 301 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 302 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 303 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 304 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 305 306 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 307 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 308 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 309 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 310 311 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 312 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 313 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 314 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 315 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 316 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 317 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 318 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 319 320 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 321 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 322 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 323 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 324 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 325 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 326 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 327 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 328 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 329 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 330 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 331 332 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 333 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 334 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 335 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 336 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 337 }, rum_rf5225[] = { 338 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 339 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 340 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 341 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 342 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 343 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 344 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 345 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 346 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 347 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 348 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 349 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 350 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 351 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 352 353 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 354 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 355 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 356 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 357 358 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 359 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 360 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 361 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 362 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 363 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 364 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 365 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 366 367 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 368 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 369 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 370 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 371 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 372 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 373 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 374 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 375 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 376 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 377 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 378 379 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 380 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 381 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 382 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 383 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 384 }; 385 386 static const struct usb_config rum_config[RUM_N_TRANSFER] = { 387 [RUM_BULK_WR] = { 388 .type = UE_BULK, 389 .endpoint = UE_ADDR_ANY, 390 .direction = UE_DIR_OUT, 391 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 392 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 393 .callback = rum_bulk_write_callback, 394 .timeout = 5000, /* ms */ 395 }, 396 [RUM_BULK_RD] = { 397 .type = UE_BULK, 398 .endpoint = UE_ADDR_ANY, 399 .direction = UE_DIR_IN, 400 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 401 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 402 .callback = rum_bulk_read_callback, 403 }, 404 }; 405 406 static int 407 rum_match(device_t self) 408 { 409 struct usb_attach_arg *uaa = device_get_ivars(self); 410 411 if (uaa->usb_mode != USB_MODE_HOST) 412 return (ENXIO); 413 if (uaa->info.bConfigIndex != 0) 414 return (ENXIO); 415 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 416 return (ENXIO); 417 418 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 419 } 420 421 static int 422 rum_attach(device_t self) 423 { 424 struct usb_attach_arg *uaa = device_get_ivars(self); 425 struct rum_softc *sc = device_get_softc(self); 426 struct ieee80211com *ic; 427 struct ifnet *ifp; 428 uint8_t iface_index, bands; 429 uint32_t tmp; 430 int error, ntries; 431 432 wlan_serialize_enter(); 433 device_set_usb_desc(self); 434 sc->sc_udev = uaa->device; 435 sc->sc_dev = self; 436 437 lockinit(&sc->sc_lock, device_get_nameunit(self), 0, LK_CANRECURSE); 438 439 iface_index = RT2573_IFACE_INDEX; 440 error = usbd_transfer_setup(uaa->device, &iface_index, 441 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_lock); 442 if (error) { 443 device_printf(self, "could not allocate USB transfers, " 444 "err=%s\n", usbd_errstr(error)); 445 goto detach; 446 } 447 448 RUM_LOCK(sc); 449 /* retrieve RT2573 rev. no */ 450 for (ntries = 0; ntries < 100; ntries++) { 451 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 452 break; 453 if (rum_pause(sc, hz / 100)) 454 break; 455 } 456 if (ntries == 100) { 457 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 458 RUM_UNLOCK(sc); 459 goto detach; 460 } 461 462 /* retrieve MAC address and various other things from EEPROM */ 463 rum_read_eeprom(sc); 464 465 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 466 tmp, rum_get_rf(sc->rf_rev)); 467 468 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 469 RUM_UNLOCK(sc); 470 471 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 472 if (ifp == NULL) { 473 device_printf(sc->sc_dev, "can not if_alloc()\n"); 474 goto detach; 475 } 476 ic = ifp->if_l2com; 477 478 ifp->if_softc = sc; 479 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 480 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 481 ifp->if_init = rum_init; 482 ifp->if_ioctl = rum_ioctl; 483 ifp->if_start = rum_start; 484 ifq_set_maxlen(&ifp->if_snd, ifqmaxlen); 485 #if 0 /* XXX swildner: see c3d4131842e47b168d93a0650d58d425ebeef789 */ 486 ifq_set_ready(&ifp->if_snd); 487 #endif 488 489 ic->ic_ifp = ifp; 490 ic->ic_opmode = IEEE80211_M_STA; 491 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 492 493 /* set device capabilities */ 494 ic->ic_caps = 495 IEEE80211_C_STA /* station mode supported */ 496 | IEEE80211_C_IBSS /* IBSS mode supported */ 497 | IEEE80211_C_MONITOR /* monitor mode supported */ 498 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 499 | IEEE80211_C_TXPMGT /* tx power management */ 500 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 501 | IEEE80211_C_SHSLOT /* short slot time supported */ 502 | IEEE80211_C_BGSCAN /* bg scanning supported */ 503 | IEEE80211_C_WPA /* 802.11i */ 504 ; 505 506 bands = 0; 507 setbit(&bands, IEEE80211_MODE_11B); 508 setbit(&bands, IEEE80211_MODE_11G); 509 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 510 setbit(&bands, IEEE80211_MODE_11A); 511 ieee80211_init_channels(ic, NULL, &bands); 512 513 ieee80211_ifattach(ic, sc->sc_bssid); 514 ic->ic_update_promisc = rum_update_promisc; 515 ic->ic_raw_xmit = rum_raw_xmit; 516 ic->ic_scan_start = rum_scan_start; 517 ic->ic_scan_end = rum_scan_end; 518 ic->ic_set_channel = rum_set_channel; 519 520 ic->ic_vap_create = rum_vap_create; 521 ic->ic_vap_delete = rum_vap_delete; 522 ic->ic_update_mcast = rum_update_mcast; 523 524 ieee80211_radiotap_attach(ic, 525 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 526 RT2573_TX_RADIOTAP_PRESENT, 527 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 528 RT2573_RX_RADIOTAP_PRESENT); 529 530 if (bootverbose) 531 ieee80211_announce(ic); 532 533 wlan_serialize_exit(); 534 return (0); 535 536 detach: 537 wlan_serialize_exit(); 538 rum_detach(self); 539 return (ENXIO); /* failure */ 540 } 541 542 static int 543 rum_detach(device_t self) 544 { 545 struct rum_softc *sc = device_get_softc(self); 546 struct ifnet *ifp = sc->sc_ifp; 547 struct ieee80211com *ic; 548 549 wlan_serialize_enter(); 550 /* Prevent further ioctls */ 551 sc->sc_detached = 1; 552 553 /* stop all USB transfers */ 554 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 555 556 /* free TX list, if any */ 557 RUM_LOCK(sc); 558 rum_unsetup_tx_list(sc); 559 RUM_UNLOCK(sc); 560 561 if (ifp) { 562 ic = ifp->if_l2com; 563 ieee80211_ifdetach(ic); 564 if_free(ifp); 565 } 566 lockuninit(&sc->sc_lock); 567 wlan_serialize_exit(); 568 return (0); 569 } 570 571 static usb_error_t 572 rum_do_request(struct rum_softc *sc, 573 struct usb_device_request *req, void *data) 574 { 575 usb_error_t err; 576 int ntries = 10; 577 578 while (ntries--) { 579 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_lock, 580 req, data, 0, NULL, 250 /* ms */); 581 if (err == 0) 582 break; 583 584 DPRINTFN(1, "Control request failed, %s (retrying)\n", 585 usbd_errstr(err)); 586 if (rum_pause(sc, hz / 100)) 587 break; 588 } 589 return (err); 590 } 591 592 static struct ieee80211vap * 593 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 594 enum ieee80211_opmode opmode, int flags, 595 const uint8_t bssid[IEEE80211_ADDR_LEN], 596 const uint8_t mac[IEEE80211_ADDR_LEN]) 597 { 598 struct rum_softc *sc = ic->ic_ifp->if_softc; 599 struct rum_vap *rvp; 600 struct ieee80211vap *vap; 601 602 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 603 return NULL; 604 rvp = (struct rum_vap *) kmalloc(sizeof(struct rum_vap), 605 M_80211_VAP, M_INTWAIT | M_ZERO); 606 vap = &rvp->vap; 607 /* enable s/w bmiss handling for sta mode */ 608 ieee80211_vap_setup(ic, vap, name, unit, opmode, 609 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 610 611 /* override state transition machine */ 612 rvp->newstate = vap->iv_newstate; 613 vap->iv_newstate = rum_newstate; 614 615 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_lock, 0); 616 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 617 ieee80211_ratectl_init(vap); 618 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 619 /* complete setup */ 620 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 621 ic->ic_opmode = opmode; 622 return vap; 623 } 624 625 static void 626 rum_vap_delete(struct ieee80211vap *vap) 627 { 628 struct rum_vap *rvp = RUM_VAP(vap); 629 struct ieee80211com *ic = vap->iv_ic; 630 631 usb_callout_drain(&rvp->ratectl_ch); 632 ieee80211_draintask(ic, &rvp->ratectl_task); 633 ieee80211_ratectl_deinit(vap); 634 ieee80211_vap_detach(vap); 635 kfree(rvp, M_80211_VAP); 636 } 637 638 static void 639 rum_tx_free(struct rum_tx_data *data, int txerr) 640 { 641 struct rum_softc *sc = data->sc; 642 643 if (data->m != NULL) { 644 if (data->m->m_flags & M_TXCB) 645 ieee80211_process_callback(data->ni, data->m, 646 txerr ? ETIMEDOUT : 0); 647 m_freem(data->m); 648 data->m = NULL; 649 650 ieee80211_free_node(data->ni); 651 data->ni = NULL; 652 } 653 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 654 sc->tx_nfree++; 655 } 656 657 static void 658 rum_setup_tx_list(struct rum_softc *sc) 659 { 660 struct rum_tx_data *data; 661 int i; 662 663 sc->tx_nfree = 0; 664 STAILQ_INIT(&sc->tx_q); 665 STAILQ_INIT(&sc->tx_free); 666 667 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 668 data = &sc->tx_data[i]; 669 670 data->sc = sc; 671 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 672 sc->tx_nfree++; 673 } 674 } 675 676 static void 677 rum_unsetup_tx_list(struct rum_softc *sc) 678 { 679 struct rum_tx_data *data; 680 int i; 681 682 /* make sure any subsequent use of the queues will fail */ 683 sc->tx_nfree = 0; 684 STAILQ_INIT(&sc->tx_q); 685 STAILQ_INIT(&sc->tx_free); 686 687 /* free up all node references and mbufs */ 688 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 689 data = &sc->tx_data[i]; 690 691 if (data->m != NULL) { 692 m_freem(data->m); 693 data->m = NULL; 694 } 695 if (data->ni != NULL) { 696 ieee80211_free_node(data->ni); 697 data->ni = NULL; 698 } 699 } 700 } 701 702 static int 703 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 704 { 705 struct rum_vap *rvp = RUM_VAP(vap); 706 struct ieee80211com *ic = vap->iv_ic; 707 struct rum_softc *sc = ic->ic_ifp->if_softc; 708 const struct ieee80211_txparam *tp; 709 enum ieee80211_state ostate; 710 struct ieee80211_node *ni; 711 uint32_t tmp; 712 713 ostate = vap->iv_state; 714 DPRINTF("%s -> %s\n", 715 ieee80211_state_name[ostate], 716 ieee80211_state_name[nstate]); 717 718 #if 0 /* XXX swildner: needed? */ 719 IEEE80211_UNLOCK(ic); 720 #endif 721 RUM_LOCK(sc); 722 usb_callout_stop(&rvp->ratectl_ch); 723 724 switch (nstate) { 725 case IEEE80211_S_INIT: 726 if (ostate == IEEE80211_S_RUN) { 727 /* abort TSF synchronization */ 728 tmp = rum_read(sc, RT2573_TXRX_CSR9); 729 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 730 } 731 break; 732 733 case IEEE80211_S_RUN: 734 ni = ieee80211_ref_node(vap->iv_bss); 735 736 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 737 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 738 RUM_UNLOCK(sc); 739 #if 0 /* XXX swildner: needed? */ 740 IEEE80211_LOCK(ic); 741 #endif 742 ieee80211_free_node(ni); 743 return (-1); 744 } 745 rum_update_slot(ic->ic_ifp); 746 rum_enable_mrr(sc); 747 rum_set_txpreamble(sc); 748 rum_set_basicrates(sc); 749 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 750 rum_set_bssid(sc, sc->sc_bssid); 751 } 752 753 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 754 vap->iv_opmode == IEEE80211_M_IBSS) 755 rum_prepare_beacon(sc, vap); 756 757 if (vap->iv_opmode != IEEE80211_M_MONITOR) 758 rum_enable_tsf_sync(sc); 759 else 760 rum_enable_tsf(sc); 761 762 /* enable automatic rate adaptation */ 763 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 764 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 765 rum_ratectl_start(sc, ni); 766 ieee80211_free_node(ni); 767 break; 768 default: 769 break; 770 } 771 RUM_UNLOCK(sc); 772 #if 0 /* XXX swildner: needed? */ 773 IEEE80211_LOCK(ic); 774 #endif 775 return (rvp->newstate(vap, nstate, arg)); 776 } 777 778 static void 779 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 780 { 781 struct rum_softc *sc = usbd_xfer_softc(xfer); 782 struct ifnet *ifp = sc->sc_ifp; 783 struct ieee80211vap *vap; 784 struct rum_tx_data *data; 785 struct mbuf *m; 786 struct usb_page_cache *pc; 787 unsigned int len; 788 int actlen, sumlen; 789 790 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 791 792 switch (USB_GET_STATE(xfer)) { 793 case USB_ST_TRANSFERRED: 794 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 795 796 /* free resources */ 797 data = usbd_xfer_get_priv(xfer); 798 rum_tx_free(data, 0); 799 usbd_xfer_set_priv(xfer, NULL); 800 801 ifp->if_opackets++; 802 ifq_clr_oactive(&ifp->if_snd); 803 804 /* FALLTHROUGH */ 805 case USB_ST_SETUP: 806 tr_setup: 807 data = STAILQ_FIRST(&sc->tx_q); 808 if (data) { 809 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 810 m = data->m; 811 812 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 813 DPRINTFN(0, "data overflow, %u bytes\n", 814 m->m_pkthdr.len); 815 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 816 } 817 pc = usbd_xfer_get_frame(xfer, 0); 818 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 819 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 820 m->m_pkthdr.len); 821 822 vap = data->ni->ni_vap; 823 if (ieee80211_radiotap_active_vap(vap)) { 824 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 825 826 tap->wt_flags = 0; 827 tap->wt_rate = data->rate; 828 tap->wt_antenna = sc->tx_ant; 829 830 ieee80211_radiotap_tx(vap, m); 831 } 832 833 /* align end on a 4-bytes boundary */ 834 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 835 if ((len % 64) == 0) 836 len += 4; 837 838 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 839 m->m_pkthdr.len, len); 840 841 usbd_xfer_set_frame_len(xfer, 0, len); 842 usbd_xfer_set_priv(xfer, data); 843 844 usbd_transfer_submit(xfer); 845 } 846 rum_start_locked(ifp); 847 break; 848 849 default: /* Error */ 850 DPRINTFN(11, "transfer error, %s\n", 851 usbd_errstr(error)); 852 853 ifp->if_oerrors++; 854 data = usbd_xfer_get_priv(xfer); 855 if (data != NULL) { 856 rum_tx_free(data, error); 857 usbd_xfer_set_priv(xfer, NULL); 858 } 859 860 if (error != USB_ERR_CANCELLED) { 861 if (error == USB_ERR_TIMEOUT) 862 device_printf(sc->sc_dev, "device timeout\n"); 863 864 /* 865 * Try to clear stall first, also if other 866 * errors occur, hence clearing stall 867 * introduces a 50 ms delay: 868 */ 869 usbd_xfer_set_stall(xfer); 870 goto tr_setup; 871 } 872 break; 873 } 874 } 875 876 static void 877 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 878 { 879 struct rum_softc *sc = usbd_xfer_softc(xfer); 880 struct ifnet *ifp = sc->sc_ifp; 881 struct ieee80211com *ic = ifp->if_l2com; 882 struct ieee80211_node *ni; 883 struct mbuf *m = NULL; 884 struct usb_page_cache *pc; 885 uint32_t flags; 886 uint8_t rssi = 0; 887 int len; 888 889 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 890 891 switch (USB_GET_STATE(xfer)) { 892 case USB_ST_TRANSFERRED: 893 894 DPRINTFN(15, "rx done, actlen=%d\n", len); 895 896 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 897 DPRINTF("%s: xfer too short %d\n", 898 device_get_nameunit(sc->sc_dev), len); 899 ifp->if_ierrors++; 900 goto tr_setup; 901 } 902 903 len -= RT2573_RX_DESC_SIZE; 904 pc = usbd_xfer_get_frame(xfer, 0); 905 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 906 907 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 908 flags = le32toh(sc->sc_rx_desc.flags); 909 if (flags & RT2573_RX_CRC_ERROR) { 910 /* 911 * This should not happen since we did not 912 * request to receive those frames when we 913 * filled RUM_TXRX_CSR2: 914 */ 915 DPRINTFN(5, "PHY or CRC error\n"); 916 ifp->if_ierrors++; 917 goto tr_setup; 918 } 919 920 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 921 if (m == NULL) { 922 DPRINTF("could not allocate mbuf\n"); 923 ifp->if_ierrors++; 924 goto tr_setup; 925 } 926 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 927 mtod(m, uint8_t *), len); 928 929 /* finalize mbuf */ 930 m->m_pkthdr.rcvif = ifp; 931 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 932 933 if (ieee80211_radiotap_active(ic)) { 934 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 935 936 /* XXX read tsf */ 937 tap->wr_flags = 0; 938 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 939 (flags & RT2573_RX_OFDM) ? 940 IEEE80211_T_OFDM : IEEE80211_T_CCK); 941 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 942 tap->wr_antnoise = RT2573_NOISE_FLOOR; 943 tap->wr_antenna = sc->rx_ant; 944 } 945 /* FALLTHROUGH */ 946 case USB_ST_SETUP: 947 tr_setup: 948 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 949 usbd_transfer_submit(xfer); 950 951 /* 952 * At the end of a USB callback it is always safe to unlock 953 * the private mutex of a device! That is why we do the 954 * "ieee80211_input" here, and not some lines up! 955 */ 956 RUM_UNLOCK(sc); 957 if (m) { 958 ni = ieee80211_find_rxnode(ic, 959 mtod(m, struct ieee80211_frame_min *)); 960 if (ni != NULL) { 961 (void) ieee80211_input(ni, m, rssi, 962 RT2573_NOISE_FLOOR); 963 ieee80211_free_node(ni); 964 } else 965 (void) ieee80211_input_all(ic, m, rssi, 966 RT2573_NOISE_FLOOR); 967 } 968 if (!ifq_is_oactive(&ifp->if_snd) && 969 !ifq_is_empty(&ifp->if_snd)) 970 rum_start_locked(ifp); 971 RUM_LOCK(sc); 972 return; 973 974 default: /* Error */ 975 if (error != USB_ERR_CANCELLED) { 976 /* try to clear stall first */ 977 usbd_xfer_set_stall(xfer); 978 goto tr_setup; 979 } 980 return; 981 } 982 } 983 984 static uint8_t 985 rum_plcp_signal(int rate) 986 { 987 switch (rate) { 988 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 989 case 12: return 0xb; 990 case 18: return 0xf; 991 case 24: return 0xa; 992 case 36: return 0xe; 993 case 48: return 0x9; 994 case 72: return 0xd; 995 case 96: return 0x8; 996 case 108: return 0xc; 997 998 /* CCK rates (NB: not IEEE std, device-specific) */ 999 case 2: return 0x0; 1000 case 4: return 0x1; 1001 case 11: return 0x2; 1002 case 22: return 0x3; 1003 } 1004 return 0xff; /* XXX unsupported/unknown rate */ 1005 } 1006 1007 static void 1008 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1009 uint32_t flags, uint16_t xflags, int len, int rate) 1010 { 1011 struct ifnet *ifp = sc->sc_ifp; 1012 struct ieee80211com *ic = ifp->if_l2com; 1013 uint16_t plcp_length; 1014 int remainder; 1015 1016 desc->flags = htole32(flags); 1017 desc->flags |= htole32(RT2573_TX_VALID); 1018 desc->flags |= htole32(len << 16); 1019 1020 desc->xflags = htole16(xflags); 1021 1022 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1023 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1024 1025 /* setup PLCP fields */ 1026 desc->plcp_signal = rum_plcp_signal(rate); 1027 desc->plcp_service = 4; 1028 1029 len += IEEE80211_CRC_LEN; 1030 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1031 desc->flags |= htole32(RT2573_TX_OFDM); 1032 1033 plcp_length = len & 0xfff; 1034 desc->plcp_length_hi = plcp_length >> 6; 1035 desc->plcp_length_lo = plcp_length & 0x3f; 1036 } else { 1037 plcp_length = (16 * len + rate - 1) / rate; 1038 if (rate == 22) { 1039 remainder = (16 * len) % 22; 1040 if (remainder != 0 && remainder < 7) 1041 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1042 } 1043 desc->plcp_length_hi = plcp_length >> 8; 1044 desc->plcp_length_lo = plcp_length & 0xff; 1045 1046 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1047 desc->plcp_signal |= 0x08; 1048 } 1049 } 1050 1051 static int 1052 rum_sendprot(struct rum_softc *sc, 1053 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1054 { 1055 struct ieee80211com *ic = ni->ni_ic; 1056 const struct ieee80211_frame *wh; 1057 struct rum_tx_data *data; 1058 struct mbuf *mprot; 1059 int protrate, ackrate, pktlen, flags, isshort; 1060 uint16_t dur; 1061 1062 RUM_LOCK_ASSERT(sc, MA_OWNED); 1063 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1064 ("protection %d", prot)); 1065 1066 wh = mtod(m, const struct ieee80211_frame *); 1067 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1068 1069 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1070 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1071 1072 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1073 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1074 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1075 flags = RT2573_TX_MORE_FRAG; 1076 if (prot == IEEE80211_PROT_RTSCTS) { 1077 /* NB: CTS is the same size as an ACK */ 1078 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1079 flags |= RT2573_TX_NEED_ACK; 1080 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1081 } else { 1082 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1083 } 1084 if (mprot == NULL) { 1085 /* XXX stat + msg */ 1086 return (ENOBUFS); 1087 } 1088 data = STAILQ_FIRST(&sc->tx_free); 1089 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1090 sc->tx_nfree--; 1091 1092 data->m = mprot; 1093 data->ni = ieee80211_ref_node(ni); 1094 data->rate = protrate; 1095 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1096 1097 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1098 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1099 1100 return 0; 1101 } 1102 1103 static int 1104 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1105 { 1106 struct ieee80211vap *vap = ni->ni_vap; 1107 struct ifnet *ifp = sc->sc_ifp; 1108 struct ieee80211com *ic = ifp->if_l2com; 1109 struct rum_tx_data *data; 1110 struct ieee80211_frame *wh; 1111 const struct ieee80211_txparam *tp; 1112 struct ieee80211_key *k; 1113 uint32_t flags = 0; 1114 uint16_t dur; 1115 1116 RUM_LOCK_ASSERT(sc, MA_OWNED); 1117 1118 data = STAILQ_FIRST(&sc->tx_free); 1119 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1120 sc->tx_nfree--; 1121 1122 wh = mtod(m0, struct ieee80211_frame *); 1123 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1124 k = ieee80211_crypto_encap(ni, m0); 1125 if (k == NULL) { 1126 m_freem(m0); 1127 return ENOBUFS; 1128 } 1129 wh = mtod(m0, struct ieee80211_frame *); 1130 } 1131 1132 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1133 1134 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1135 flags |= RT2573_TX_NEED_ACK; 1136 1137 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1138 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1139 *(uint16_t *)wh->i_dur = htole16(dur); 1140 1141 /* tell hardware to add timestamp for probe responses */ 1142 if ((wh->i_fc[0] & 1143 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1144 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1145 flags |= RT2573_TX_TIMESTAMP; 1146 } 1147 1148 data->m = m0; 1149 data->ni = ni; 1150 data->rate = tp->mgmtrate; 1151 1152 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1153 1154 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1155 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1156 1157 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1158 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1159 1160 return (0); 1161 } 1162 1163 static int 1164 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1165 const struct ieee80211_bpf_params *params) 1166 { 1167 struct ieee80211com *ic = ni->ni_ic; 1168 struct rum_tx_data *data; 1169 uint32_t flags; 1170 int rate, error; 1171 1172 RUM_LOCK_ASSERT(sc, MA_OWNED); 1173 KASSERT(params != NULL, ("no raw xmit params")); 1174 1175 rate = params->ibp_rate0; 1176 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1177 m_freem(m0); 1178 return EINVAL; 1179 } 1180 flags = 0; 1181 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1182 flags |= RT2573_TX_NEED_ACK; 1183 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1184 error = rum_sendprot(sc, m0, ni, 1185 params->ibp_flags & IEEE80211_BPF_RTS ? 1186 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1187 rate); 1188 if (error || sc->tx_nfree == 0) { 1189 m_freem(m0); 1190 return ENOBUFS; 1191 } 1192 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1193 } 1194 1195 data = STAILQ_FIRST(&sc->tx_free); 1196 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1197 sc->tx_nfree--; 1198 1199 data->m = m0; 1200 data->ni = ni; 1201 data->rate = rate; 1202 1203 /* XXX need to setup descriptor ourself */ 1204 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1205 1206 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1207 m0->m_pkthdr.len, rate); 1208 1209 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1210 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1211 1212 return 0; 1213 } 1214 1215 static int 1216 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1217 { 1218 struct ieee80211vap *vap = ni->ni_vap; 1219 struct ifnet *ifp = sc->sc_ifp; 1220 struct ieee80211com *ic = ifp->if_l2com; 1221 struct rum_tx_data *data; 1222 struct ieee80211_frame *wh; 1223 const struct ieee80211_txparam *tp; 1224 struct ieee80211_key *k; 1225 uint32_t flags = 0; 1226 uint16_t dur; 1227 int error, rate; 1228 1229 #if 0 /* XXX swildner: lock needed? */ 1230 RUM_LOCK_ASSERT(sc, MA_OWNED); 1231 #endif 1232 1233 wh = mtod(m0, struct ieee80211_frame *); 1234 1235 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1236 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1237 rate = tp->mcastrate; 1238 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1239 rate = tp->ucastrate; 1240 else 1241 rate = ni->ni_txrate; 1242 1243 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1244 k = ieee80211_crypto_encap(ni, m0); 1245 if (k == NULL) { 1246 m_freem(m0); 1247 return ENOBUFS; 1248 } 1249 1250 /* packet header may have moved, reset our local pointer */ 1251 wh = mtod(m0, struct ieee80211_frame *); 1252 } 1253 1254 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1255 int prot = IEEE80211_PROT_NONE; 1256 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1257 prot = IEEE80211_PROT_RTSCTS; 1258 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1259 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1260 prot = ic->ic_protmode; 1261 if (prot != IEEE80211_PROT_NONE) { 1262 error = rum_sendprot(sc, m0, ni, prot, rate); 1263 if (error || sc->tx_nfree == 0) { 1264 m_freem(m0); 1265 return ENOBUFS; 1266 } 1267 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1268 } 1269 } 1270 1271 data = STAILQ_FIRST(&sc->tx_free); 1272 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1273 sc->tx_nfree--; 1274 1275 data->m = m0; 1276 data->ni = ni; 1277 data->rate = rate; 1278 1279 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1280 flags |= RT2573_TX_NEED_ACK; 1281 flags |= RT2573_TX_MORE_FRAG; 1282 1283 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1284 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1285 *(uint16_t *)wh->i_dur = htole16(dur); 1286 } 1287 1288 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1289 1290 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1291 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1292 1293 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1294 RUM_LOCK(sc); 1295 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1296 RUM_UNLOCK(sc); 1297 1298 return 0; 1299 } 1300 1301 static void 1302 rum_start_locked(struct ifnet *ifp) 1303 { 1304 struct rum_softc *sc = ifp->if_softc; 1305 struct ieee80211_node *ni; 1306 struct mbuf *m; 1307 1308 if ((ifp->if_flags & IFF_RUNNING) == 0) { 1309 return; 1310 } 1311 for (;;) { 1312 m = ifq_dequeue(&ifp->if_snd); 1313 if (m == NULL) 1314 break; 1315 if (sc->tx_nfree < RUM_TX_MINFREE) { 1316 ifq_prepend(&ifp->if_snd, m); 1317 ifq_set_oactive(&ifp->if_snd); 1318 break; 1319 } 1320 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1321 if (rum_tx_data(sc, m, ni) != 0) { 1322 ieee80211_free_node(ni); 1323 ifp->if_oerrors++; 1324 break; 1325 } 1326 } 1327 } 1328 1329 static void 1330 rum_start(struct ifnet *ifp, struct ifaltq_subque *ifsq) 1331 { 1332 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq); 1333 rum_start_locked(ifp); 1334 } 1335 1336 static int 1337 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred) 1338 { 1339 struct rum_softc *sc = ifp->if_softc; 1340 struct ieee80211com *ic = ifp->if_l2com; 1341 struct ifreq *ifr = (struct ifreq *) data; 1342 int error; 1343 int startall = 0; 1344 1345 RUM_LOCK(sc); 1346 error = sc->sc_detached ? ENXIO : 0; 1347 RUM_UNLOCK(sc); 1348 if (error) 1349 return (error); 1350 1351 switch (cmd) { 1352 case SIOCSIFFLAGS: 1353 RUM_LOCK(sc); 1354 if (ifp->if_flags & IFF_UP) { 1355 if ((ifp->if_flags & IFF_RUNNING) == 0) { 1356 rum_init_locked(sc); 1357 startall = 1; 1358 } else 1359 rum_setpromisc(sc); 1360 } else { 1361 if (ifp->if_flags & IFF_RUNNING) 1362 rum_stop(sc); 1363 } 1364 RUM_UNLOCK(sc); 1365 if (startall) 1366 ieee80211_start_all(ic); 1367 break; 1368 case SIOCGIFMEDIA: 1369 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1370 break; 1371 case SIOCGIFADDR: 1372 error = ether_ioctl(ifp, cmd, data); 1373 break; 1374 default: 1375 error = EINVAL; 1376 break; 1377 } 1378 return error; 1379 } 1380 1381 static void 1382 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1383 { 1384 struct usb_device_request req; 1385 usb_error_t error; 1386 1387 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1388 req.bRequest = RT2573_READ_EEPROM; 1389 USETW(req.wValue, 0); 1390 USETW(req.wIndex, addr); 1391 USETW(req.wLength, len); 1392 1393 error = rum_do_request(sc, &req, buf); 1394 if (error != 0) { 1395 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1396 usbd_errstr(error)); 1397 } 1398 } 1399 1400 static uint32_t 1401 rum_read(struct rum_softc *sc, uint16_t reg) 1402 { 1403 uint32_t val; 1404 1405 rum_read_multi(sc, reg, &val, sizeof val); 1406 1407 return le32toh(val); 1408 } 1409 1410 static void 1411 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1412 { 1413 struct usb_device_request req; 1414 usb_error_t error; 1415 1416 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1417 req.bRequest = RT2573_READ_MULTI_MAC; 1418 USETW(req.wValue, 0); 1419 USETW(req.wIndex, reg); 1420 USETW(req.wLength, len); 1421 1422 error = rum_do_request(sc, &req, buf); 1423 if (error != 0) { 1424 device_printf(sc->sc_dev, 1425 "could not multi read MAC register: %s\n", 1426 usbd_errstr(error)); 1427 } 1428 } 1429 1430 static usb_error_t 1431 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1432 { 1433 uint32_t tmp = htole32(val); 1434 1435 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1436 } 1437 1438 static usb_error_t 1439 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1440 { 1441 struct usb_device_request req; 1442 usb_error_t error; 1443 size_t offset; 1444 1445 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1446 req.bRequest = RT2573_WRITE_MULTI_MAC; 1447 USETW(req.wValue, 0); 1448 1449 /* write at most 64 bytes at a time */ 1450 for (offset = 0; offset < len; offset += 64) { 1451 USETW(req.wIndex, reg + offset); 1452 USETW(req.wLength, MIN(len - offset, 64)); 1453 1454 error = rum_do_request(sc, &req, (char *)buf + offset); 1455 if (error != 0) { 1456 device_printf(sc->sc_dev, 1457 "could not multi write MAC register: %s\n", 1458 usbd_errstr(error)); 1459 return (error); 1460 } 1461 } 1462 1463 return (USB_ERR_NORMAL_COMPLETION); 1464 } 1465 1466 static void 1467 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1468 { 1469 uint32_t tmp; 1470 int ntries; 1471 1472 DPRINTFN(2, "reg=0x%08x\n", reg); 1473 1474 for (ntries = 0; ntries < 100; ntries++) { 1475 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1476 break; 1477 if (rum_pause(sc, hz / 100)) 1478 break; 1479 } 1480 if (ntries == 100) { 1481 device_printf(sc->sc_dev, "could not write to BBP\n"); 1482 return; 1483 } 1484 1485 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1486 rum_write(sc, RT2573_PHY_CSR3, tmp); 1487 } 1488 1489 static uint8_t 1490 rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1491 { 1492 uint32_t val; 1493 int ntries; 1494 1495 DPRINTFN(2, "reg=0x%08x\n", reg); 1496 1497 for (ntries = 0; ntries < 100; ntries++) { 1498 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1499 break; 1500 if (rum_pause(sc, hz / 100)) 1501 break; 1502 } 1503 if (ntries == 100) { 1504 device_printf(sc->sc_dev, "could not read BBP\n"); 1505 return 0; 1506 } 1507 1508 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1509 rum_write(sc, RT2573_PHY_CSR3, val); 1510 1511 for (ntries = 0; ntries < 100; ntries++) { 1512 val = rum_read(sc, RT2573_PHY_CSR3); 1513 if (!(val & RT2573_BBP_BUSY)) 1514 return val & 0xff; 1515 if (rum_pause(sc, hz / 100)) 1516 break; 1517 } 1518 1519 device_printf(sc->sc_dev, "could not read BBP\n"); 1520 return 0; 1521 } 1522 1523 static void 1524 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1525 { 1526 uint32_t tmp; 1527 int ntries; 1528 1529 for (ntries = 0; ntries < 100; ntries++) { 1530 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1531 break; 1532 if (rum_pause(sc, hz / 100)) 1533 break; 1534 } 1535 if (ntries == 100) { 1536 device_printf(sc->sc_dev, "could not write to RF\n"); 1537 return; 1538 } 1539 1540 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1541 (reg & 3); 1542 rum_write(sc, RT2573_PHY_CSR4, tmp); 1543 1544 /* remember last written value in sc */ 1545 sc->rf_regs[reg] = val; 1546 1547 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1548 } 1549 1550 static void 1551 rum_select_antenna(struct rum_softc *sc) 1552 { 1553 uint8_t bbp4, bbp77; 1554 uint32_t tmp; 1555 1556 bbp4 = rum_bbp_read(sc, 4); 1557 bbp77 = rum_bbp_read(sc, 77); 1558 1559 /* TBD */ 1560 1561 /* make sure Rx is disabled before switching antenna */ 1562 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1563 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1564 1565 rum_bbp_write(sc, 4, bbp4); 1566 rum_bbp_write(sc, 77, bbp77); 1567 1568 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1569 } 1570 1571 /* 1572 * Enable multi-rate retries for frames sent at OFDM rates. 1573 * In 802.11b/g mode, allow fallback to CCK rates. 1574 */ 1575 static void 1576 rum_enable_mrr(struct rum_softc *sc) 1577 { 1578 struct ifnet *ifp = sc->sc_ifp; 1579 struct ieee80211com *ic = ifp->if_l2com; 1580 uint32_t tmp; 1581 1582 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1583 1584 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1585 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1586 tmp |= RT2573_MRR_CCK_FALLBACK; 1587 tmp |= RT2573_MRR_ENABLED; 1588 1589 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1590 } 1591 1592 static void 1593 rum_set_txpreamble(struct rum_softc *sc) 1594 { 1595 struct ifnet *ifp = sc->sc_ifp; 1596 struct ieee80211com *ic = ifp->if_l2com; 1597 uint32_t tmp; 1598 1599 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1600 1601 tmp &= ~RT2573_SHORT_PREAMBLE; 1602 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1603 tmp |= RT2573_SHORT_PREAMBLE; 1604 1605 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1606 } 1607 1608 static void 1609 rum_set_basicrates(struct rum_softc *sc) 1610 { 1611 struct ifnet *ifp = sc->sc_ifp; 1612 struct ieee80211com *ic = ifp->if_l2com; 1613 1614 /* update basic rate set */ 1615 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1616 /* 11b basic rates: 1, 2Mbps */ 1617 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1618 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1619 /* 11a basic rates: 6, 12, 24Mbps */ 1620 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1621 } else { 1622 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1623 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1624 } 1625 } 1626 1627 /* 1628 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1629 * driver. 1630 */ 1631 static void 1632 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1633 { 1634 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1635 uint32_t tmp; 1636 1637 /* update all BBP registers that depend on the band */ 1638 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1639 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1640 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1641 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1642 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1643 } 1644 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1645 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1646 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1647 } 1648 1649 sc->bbp17 = bbp17; 1650 rum_bbp_write(sc, 17, bbp17); 1651 rum_bbp_write(sc, 96, bbp96); 1652 rum_bbp_write(sc, 104, bbp104); 1653 1654 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1655 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1656 rum_bbp_write(sc, 75, 0x80); 1657 rum_bbp_write(sc, 86, 0x80); 1658 rum_bbp_write(sc, 88, 0x80); 1659 } 1660 1661 rum_bbp_write(sc, 35, bbp35); 1662 rum_bbp_write(sc, 97, bbp97); 1663 rum_bbp_write(sc, 98, bbp98); 1664 1665 tmp = rum_read(sc, RT2573_PHY_CSR0); 1666 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1667 if (IEEE80211_IS_CHAN_2GHZ(c)) 1668 tmp |= RT2573_PA_PE_2GHZ; 1669 else 1670 tmp |= RT2573_PA_PE_5GHZ; 1671 rum_write(sc, RT2573_PHY_CSR0, tmp); 1672 } 1673 1674 static void 1675 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1676 { 1677 struct ifnet *ifp = sc->sc_ifp; 1678 struct ieee80211com *ic = ifp->if_l2com; 1679 const struct rfprog *rfprog; 1680 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1681 int8_t power; 1682 int i, chan; 1683 1684 chan = ieee80211_chan2ieee(ic, c); 1685 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1686 return; 1687 1688 /* select the appropriate RF settings based on what EEPROM says */ 1689 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1690 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1691 1692 /* find the settings for this channel (we know it exists) */ 1693 for (i = 0; rfprog[i].chan != chan; i++); 1694 1695 power = sc->txpow[i]; 1696 if (power < 0) { 1697 bbp94 += power; 1698 power = 0; 1699 } else if (power > 31) { 1700 bbp94 += power - 31; 1701 power = 31; 1702 } 1703 1704 /* 1705 * If we are switching from the 2GHz band to the 5GHz band or 1706 * vice-versa, BBP registers need to be reprogrammed. 1707 */ 1708 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1709 rum_select_band(sc, c); 1710 rum_select_antenna(sc); 1711 } 1712 ic->ic_curchan = c; 1713 1714 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1715 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1716 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1717 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1718 1719 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1720 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1721 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1722 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1723 1724 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1725 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1726 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1727 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1728 1729 rum_pause(sc, hz / 100); 1730 1731 /* enable smart mode for MIMO-capable RFs */ 1732 bbp3 = rum_bbp_read(sc, 3); 1733 1734 bbp3 &= ~RT2573_SMART_MODE; 1735 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1736 bbp3 |= RT2573_SMART_MODE; 1737 1738 rum_bbp_write(sc, 3, bbp3); 1739 1740 if (bbp94 != RT2573_BBPR94_DEFAULT) 1741 rum_bbp_write(sc, 94, bbp94); 1742 1743 /* give the chip some extra time to do the switchover */ 1744 rum_pause(sc, hz / 100); 1745 } 1746 1747 /* 1748 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1749 * and HostAP operating modes. 1750 */ 1751 static void 1752 rum_enable_tsf_sync(struct rum_softc *sc) 1753 { 1754 struct ifnet *ifp = sc->sc_ifp; 1755 struct ieee80211com *ic = ifp->if_l2com; 1756 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1757 uint32_t tmp; 1758 1759 if (vap->iv_opmode != IEEE80211_M_STA) { 1760 /* 1761 * Change default 16ms TBTT adjustment to 8ms. 1762 * Must be done before enabling beacon generation. 1763 */ 1764 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1765 } 1766 1767 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1768 1769 /* set beacon interval (in 1/16ms unit) */ 1770 tmp |= vap->iv_bss->ni_intval * 16; 1771 1772 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1773 if (vap->iv_opmode == IEEE80211_M_STA) 1774 tmp |= RT2573_TSF_MODE(1); 1775 else 1776 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1777 1778 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1779 } 1780 1781 static void 1782 rum_enable_tsf(struct rum_softc *sc) 1783 { 1784 rum_write(sc, RT2573_TXRX_CSR9, 1785 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1786 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1787 } 1788 1789 static void 1790 rum_update_slot(struct ifnet *ifp) 1791 { 1792 struct rum_softc *sc = ifp->if_softc; 1793 struct ieee80211com *ic = ifp->if_l2com; 1794 uint8_t slottime; 1795 uint32_t tmp; 1796 1797 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1798 1799 tmp = rum_read(sc, RT2573_MAC_CSR9); 1800 tmp = (tmp & ~0xff) | slottime; 1801 rum_write(sc, RT2573_MAC_CSR9, tmp); 1802 1803 DPRINTF("setting slot time to %uus\n", slottime); 1804 } 1805 1806 static void 1807 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1808 { 1809 uint32_t tmp; 1810 1811 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1812 rum_write(sc, RT2573_MAC_CSR4, tmp); 1813 1814 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1815 rum_write(sc, RT2573_MAC_CSR5, tmp); 1816 } 1817 1818 static void 1819 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1820 { 1821 uint32_t tmp; 1822 1823 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1824 rum_write(sc, RT2573_MAC_CSR2, tmp); 1825 1826 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1827 rum_write(sc, RT2573_MAC_CSR3, tmp); 1828 } 1829 1830 static void 1831 rum_setpromisc(struct rum_softc *sc) 1832 { 1833 struct ifnet *ifp = sc->sc_ifp; 1834 uint32_t tmp; 1835 1836 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1837 1838 tmp &= ~RT2573_DROP_NOT_TO_ME; 1839 if (!(ifp->if_flags & IFF_PROMISC)) 1840 tmp |= RT2573_DROP_NOT_TO_ME; 1841 1842 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1843 1844 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1845 "entering" : "leaving"); 1846 } 1847 1848 static void 1849 rum_update_promisc(struct ifnet *ifp) 1850 { 1851 struct rum_softc *sc = ifp->if_softc; 1852 1853 if ((ifp->if_flags & IFF_RUNNING) == 0) 1854 return; 1855 1856 RUM_LOCK(sc); 1857 rum_setpromisc(sc); 1858 RUM_UNLOCK(sc); 1859 } 1860 1861 static void 1862 rum_update_mcast(struct ifnet *ifp) 1863 { 1864 static int warning_printed; 1865 1866 if (warning_printed == 0) { 1867 if_printf(ifp, "need to implement %s\n", __func__); 1868 warning_printed = 1; 1869 } 1870 } 1871 1872 static const char * 1873 rum_get_rf(int rev) 1874 { 1875 switch (rev) { 1876 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1877 case RT2573_RF_2528: return "RT2528"; 1878 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1879 case RT2573_RF_5226: return "RT5226"; 1880 default: return "unknown"; 1881 } 1882 } 1883 1884 static void 1885 rum_read_eeprom(struct rum_softc *sc) 1886 { 1887 uint16_t val; 1888 #ifdef RUM_DEBUG 1889 int i; 1890 #endif 1891 1892 /* read MAC address */ 1893 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1894 1895 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1896 val = le16toh(val); 1897 sc->rf_rev = (val >> 11) & 0x1f; 1898 sc->hw_radio = (val >> 10) & 0x1; 1899 sc->rx_ant = (val >> 4) & 0x3; 1900 sc->tx_ant = (val >> 2) & 0x3; 1901 sc->nb_ant = val & 0x3; 1902 1903 DPRINTF("RF revision=%d\n", sc->rf_rev); 1904 1905 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1906 val = le16toh(val); 1907 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1908 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1909 1910 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1911 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1912 1913 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1914 val = le16toh(val); 1915 if ((val & 0xff) != 0xff) 1916 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1917 1918 /* Only [-10, 10] is valid */ 1919 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1920 sc->rssi_2ghz_corr = 0; 1921 1922 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1923 val = le16toh(val); 1924 if ((val & 0xff) != 0xff) 1925 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1926 1927 /* Only [-10, 10] is valid */ 1928 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1929 sc->rssi_5ghz_corr = 0; 1930 1931 if (sc->ext_2ghz_lna) 1932 sc->rssi_2ghz_corr -= 14; 1933 if (sc->ext_5ghz_lna) 1934 sc->rssi_5ghz_corr -= 14; 1935 1936 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1937 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1938 1939 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1940 val = le16toh(val); 1941 if ((val & 0xff) != 0xff) 1942 sc->rffreq = val & 0xff; 1943 1944 DPRINTF("RF freq=%d\n", sc->rffreq); 1945 1946 /* read Tx power for all a/b/g channels */ 1947 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1948 /* XXX default Tx power for 802.11a channels */ 1949 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1950 #ifdef RUM_DEBUG 1951 for (i = 0; i < 14; i++) 1952 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1953 #endif 1954 1955 /* read default values for BBP registers */ 1956 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1957 #ifdef RUM_DEBUG 1958 for (i = 0; i < 14; i++) { 1959 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1960 continue; 1961 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1962 sc->bbp_prom[i].val); 1963 } 1964 #endif 1965 } 1966 1967 static int 1968 rum_bbp_init(struct rum_softc *sc) 1969 { 1970 int i, ntries; 1971 1972 /* wait for BBP to be ready */ 1973 for (ntries = 0; ntries < 100; ntries++) { 1974 const uint8_t val = rum_bbp_read(sc, 0); 1975 if (val != 0 && val != 0xff) 1976 break; 1977 if (rum_pause(sc, hz / 100)) 1978 break; 1979 } 1980 if (ntries == 100) { 1981 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1982 return EIO; 1983 } 1984 1985 /* initialize BBP registers to default values */ 1986 for (i = 0; i < N(rum_def_bbp); i++) 1987 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1988 1989 /* write vendor-specific BBP values (from EEPROM) */ 1990 for (i = 0; i < 16; i++) { 1991 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1992 continue; 1993 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1994 } 1995 1996 return 0; 1997 } 1998 1999 static void 2000 rum_init_locked(struct rum_softc *sc) 2001 { 2002 struct ifnet *ifp = sc->sc_ifp; 2003 struct ieee80211com *ic = ifp->if_l2com; 2004 uint32_t tmp; 2005 usb_error_t error; 2006 int i, ntries; 2007 2008 RUM_LOCK_ASSERT(sc, MA_OWNED); 2009 2010 rum_stop(sc); 2011 2012 /* initialize MAC registers to default values */ 2013 for (i = 0; i < N(rum_def_mac); i++) 2014 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2015 2016 /* set host ready */ 2017 rum_write(sc, RT2573_MAC_CSR1, 3); 2018 rum_write(sc, RT2573_MAC_CSR1, 0); 2019 2020 /* wait for BBP/RF to wakeup */ 2021 for (ntries = 0; ntries < 100; ntries++) { 2022 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2023 break; 2024 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2025 if (rum_pause(sc, hz / 100)) 2026 break; 2027 } 2028 if (ntries == 100) { 2029 device_printf(sc->sc_dev, 2030 "timeout waiting for BBP/RF to wakeup\n"); 2031 goto fail; 2032 } 2033 2034 if ((error = rum_bbp_init(sc)) != 0) 2035 goto fail; 2036 2037 /* select default channel */ 2038 rum_select_band(sc, ic->ic_curchan); 2039 rum_select_antenna(sc); 2040 rum_set_chan(sc, ic->ic_curchan); 2041 2042 /* clear STA registers */ 2043 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2044 2045 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2046 2047 /* initialize ASIC */ 2048 rum_write(sc, RT2573_MAC_CSR1, 4); 2049 2050 /* 2051 * Allocate Tx and Rx xfer queues. 2052 */ 2053 rum_setup_tx_list(sc); 2054 2055 /* update Rx filter */ 2056 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2057 2058 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2059 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2060 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2061 RT2573_DROP_ACKCTS; 2062 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2063 tmp |= RT2573_DROP_TODS; 2064 if (!(ifp->if_flags & IFF_PROMISC)) 2065 tmp |= RT2573_DROP_NOT_TO_ME; 2066 } 2067 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2068 2069 ifq_clr_oactive(&ifp->if_snd); 2070 ifp->if_flags |= IFF_RUNNING; 2071 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2072 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2073 return; 2074 2075 fail: rum_stop(sc); 2076 #undef N 2077 } 2078 2079 static void 2080 rum_init(void *priv) 2081 { 2082 struct rum_softc *sc = priv; 2083 struct ifnet *ifp = sc->sc_ifp; 2084 struct ieee80211com *ic = ifp->if_l2com; 2085 2086 RUM_LOCK(sc); 2087 rum_init_locked(sc); 2088 RUM_UNLOCK(sc); 2089 2090 if (ifp->if_flags & IFF_RUNNING) 2091 ieee80211_start_all(ic); /* start all vap's */ 2092 } 2093 2094 static void 2095 rum_stop(struct rum_softc *sc) 2096 { 2097 struct ifnet *ifp = sc->sc_ifp; 2098 uint32_t tmp; 2099 2100 RUM_LOCK_ASSERT(sc, MA_OWNED); 2101 2102 ifp->if_flags &= ~IFF_RUNNING; 2103 ifq_clr_oactive(&ifp->if_snd); 2104 2105 RUM_UNLOCK(sc); 2106 2107 /* 2108 * Drain the USB transfers, if not already drained: 2109 */ 2110 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2111 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2112 2113 RUM_LOCK(sc); 2114 2115 rum_unsetup_tx_list(sc); 2116 2117 /* disable Rx */ 2118 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2119 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2120 2121 /* reset ASIC */ 2122 rum_write(sc, RT2573_MAC_CSR1, 3); 2123 rum_write(sc, RT2573_MAC_CSR1, 0); 2124 } 2125 2126 static void 2127 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2128 { 2129 struct usb_device_request req; 2130 uint16_t reg = RT2573_MCU_CODE_BASE; 2131 usb_error_t err; 2132 2133 /* copy firmware image into NIC */ 2134 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2135 err = rum_write(sc, reg, UGETDW(ucode)); 2136 if (err) { 2137 /* firmware already loaded ? */ 2138 device_printf(sc->sc_dev, "Firmware load " 2139 "failure! (ignored)\n"); 2140 break; 2141 } 2142 } 2143 2144 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2145 req.bRequest = RT2573_MCU_CNTL; 2146 USETW(req.wValue, RT2573_MCU_RUN); 2147 USETW(req.wIndex, 0); 2148 USETW(req.wLength, 0); 2149 2150 err = rum_do_request(sc, &req, NULL); 2151 if (err != 0) { 2152 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2153 usbd_errstr(err)); 2154 } 2155 2156 /* give the chip some time to boot */ 2157 rum_pause(sc, hz / 8); 2158 } 2159 2160 static void 2161 rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2162 { 2163 struct ieee80211com *ic = vap->iv_ic; 2164 const struct ieee80211_txparam *tp; 2165 struct rum_tx_desc desc; 2166 struct mbuf *m0; 2167 2168 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2169 return; 2170 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2171 return; 2172 2173 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2174 if (m0 == NULL) 2175 return; 2176 2177 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2178 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2179 m0->m_pkthdr.len, tp->mgmtrate); 2180 2181 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2182 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2183 2184 /* copy beacon header and payload into NIC memory */ 2185 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2186 m0->m_pkthdr.len); 2187 2188 m_freem(m0); 2189 } 2190 2191 static int 2192 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2193 const struct ieee80211_bpf_params *params) 2194 { 2195 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2196 struct rum_softc *sc = ifp->if_softc; 2197 2198 RUM_LOCK(sc); 2199 /* prevent management frames from being sent if we're not ready */ 2200 if (!(ifp->if_flags & IFF_RUNNING)) { 2201 RUM_UNLOCK(sc); 2202 m_freem(m); 2203 ieee80211_free_node(ni); 2204 return ENETDOWN; 2205 } 2206 if (sc->tx_nfree < RUM_TX_MINFREE) { 2207 ifq_set_oactive(&ifp->if_snd); 2208 RUM_UNLOCK(sc); 2209 m_freem(m); 2210 ieee80211_free_node(ni); 2211 return EIO; 2212 } 2213 2214 ifp->if_opackets++; 2215 2216 if (params == NULL) { 2217 /* 2218 * Legacy path; interpret frame contents to decide 2219 * precisely how to send the frame. 2220 */ 2221 if (rum_tx_mgt(sc, m, ni) != 0) 2222 goto bad; 2223 } else { 2224 /* 2225 * Caller supplied explicit parameters to use in 2226 * sending the frame. 2227 */ 2228 if (rum_tx_raw(sc, m, ni, params) != 0) 2229 goto bad; 2230 } 2231 RUM_UNLOCK(sc); 2232 2233 return 0; 2234 bad: 2235 ifp->if_oerrors++; 2236 RUM_UNLOCK(sc); 2237 ieee80211_free_node(ni); 2238 return EIO; 2239 } 2240 2241 static void 2242 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2243 { 2244 struct ieee80211vap *vap = ni->ni_vap; 2245 struct rum_vap *rvp = RUM_VAP(vap); 2246 2247 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2248 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2249 2250 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2251 } 2252 2253 static void 2254 rum_ratectl_timeout(void *arg) 2255 { 2256 struct rum_vap *rvp = arg; 2257 struct ieee80211vap *vap = &rvp->vap; 2258 struct ieee80211com *ic = vap->iv_ic; 2259 2260 ieee80211_runtask(ic, &rvp->ratectl_task); 2261 } 2262 2263 static void 2264 rum_ratectl_task(void *arg, int pending) 2265 { 2266 struct rum_vap *rvp = arg; 2267 struct ieee80211vap *vap = &rvp->vap; 2268 struct ieee80211com *ic = vap->iv_ic; 2269 struct ifnet *ifp = ic->ic_ifp; 2270 struct rum_softc *sc = ifp->if_softc; 2271 struct ieee80211_node *ni; 2272 int ok, fail; 2273 int sum, retrycnt; 2274 2275 RUM_LOCK(sc); 2276 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2277 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2278 2279 ok = (le32toh(sc->sta[4]) & 0xffff) + /* TX no-retry ok count */ 2280 (le32toh(sc->sta[4]) >> 16) + /* TX one-retry ok count */ 2281 (le32toh(sc->sta[5]) & 0xffff); /* TX more-retry ok count */ 2282 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2283 sum = ok+fail; 2284 retrycnt = (le32toh(sc->sta[4]) >> 16) + 2285 (le32toh(sc->sta[5]) & 0xffff) + fail; 2286 2287 ni = ieee80211_ref_node(vap->iv_bss); 2288 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2289 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2290 ieee80211_free_node(ni); 2291 2292 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2293 2294 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2295 RUM_UNLOCK(sc); 2296 } 2297 2298 static void 2299 rum_scan_start(struct ieee80211com *ic) 2300 { 2301 struct ifnet *ifp = ic->ic_ifp; 2302 struct rum_softc *sc = ifp->if_softc; 2303 uint32_t tmp; 2304 2305 RUM_LOCK(sc); 2306 /* abort TSF synchronization */ 2307 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2308 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2309 rum_set_bssid(sc, ifp->if_broadcastaddr); 2310 RUM_UNLOCK(sc); 2311 2312 } 2313 2314 static void 2315 rum_scan_end(struct ieee80211com *ic) 2316 { 2317 struct rum_softc *sc = ic->ic_ifp->if_softc; 2318 2319 RUM_LOCK(sc); 2320 rum_enable_tsf_sync(sc); 2321 rum_set_bssid(sc, sc->sc_bssid); 2322 RUM_UNLOCK(sc); 2323 2324 } 2325 2326 static void 2327 rum_set_channel(struct ieee80211com *ic) 2328 { 2329 struct rum_softc *sc = ic->ic_ifp->if_softc; 2330 2331 RUM_LOCK(sc); 2332 rum_set_chan(sc, ic->ic_curchan); 2333 RUM_UNLOCK(sc); 2334 } 2335 2336 static int 2337 rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2338 { 2339 struct ifnet *ifp = sc->sc_ifp; 2340 struct ieee80211com *ic = ifp->if_l2com; 2341 int lna, agc, rssi; 2342 2343 lna = (raw >> 5) & 0x3; 2344 agc = raw & 0x1f; 2345 2346 if (lna == 0) { 2347 /* 2348 * No RSSI mapping 2349 * 2350 * NB: Since RSSI is relative to noise floor, -1 is 2351 * adequate for caller to know error happened. 2352 */ 2353 return -1; 2354 } 2355 2356 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2357 2358 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2359 rssi += sc->rssi_2ghz_corr; 2360 2361 if (lna == 1) 2362 rssi -= 64; 2363 else if (lna == 2) 2364 rssi -= 74; 2365 else if (lna == 3) 2366 rssi -= 90; 2367 } else { 2368 rssi += sc->rssi_5ghz_corr; 2369 2370 if (!sc->ext_5ghz_lna && lna != 1) 2371 rssi += 4; 2372 2373 if (lna == 1) 2374 rssi -= 64; 2375 else if (lna == 2) 2376 rssi -= 86; 2377 else if (lna == 3) 2378 rssi -= 100; 2379 } 2380 return rssi; 2381 } 2382 2383 static int 2384 rum_pause(struct rum_softc *sc, int timeout) 2385 { 2386 usb_pause_ls(lockowned(&sc->sc_lock) ? &sc->sc_lock : NULL, 2387 &wlan_global_serializer, timeout + 1); 2388 return (0); 2389 } 2390 2391 static device_method_t rum_methods[] = { 2392 /* Device interface */ 2393 DEVMETHOD(device_probe, rum_match), 2394 DEVMETHOD(device_attach, rum_attach), 2395 DEVMETHOD(device_detach, rum_detach), 2396 DEVMETHOD_END 2397 }; 2398 2399 static driver_t rum_driver = { 2400 .name = "rum", 2401 .methods = rum_methods, 2402 .size = sizeof(struct rum_softc), 2403 }; 2404 2405 static devclass_t rum_devclass; 2406 2407 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2408 MODULE_DEPEND(rum, wlan, 1, 1, 1); 2409 MODULE_DEPEND(rum, usb, 1, 1, 1); 2410 MODULE_VERSION(rum, 1); 2411