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