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 void rum_newassoc(struct ieee80211_node *, int); 163 static int rum_newstate(struct ieee80211vap *, 164 enum ieee80211_state, int); 165 static void rum_setup_tx_desc(struct rum_softc *, 166 struct rum_tx_desc *, uint32_t, uint16_t, int, 167 int); 168 static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 169 struct ieee80211_node *); 170 static int rum_tx_raw(struct rum_softc *, struct mbuf *, 171 struct ieee80211_node *, 172 const struct ieee80211_bpf_params *); 173 static int rum_tx_data(struct rum_softc *, struct mbuf *, 174 struct ieee80211_node *); 175 static void rum_start_locked(struct ifnet *); 176 static void rum_start(struct ifnet *, struct ifaltq_subque *); 177 static int rum_ioctl(struct ifnet *, u_long, caddr_t, 178 struct ucred *); 179 static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 180 int); 181 static uint32_t rum_read(struct rum_softc *, uint16_t); 182 static void rum_read_multi(struct rum_softc *, uint16_t, void *, 183 int); 184 static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 185 static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 186 size_t); 187 static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 188 static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 189 static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 190 static void rum_select_antenna(struct rum_softc *); 191 static void rum_enable_mrr(struct rum_softc *); 192 static void rum_set_txpreamble(struct rum_softc *); 193 static void rum_set_basicrates(struct rum_softc *); 194 static void rum_select_band(struct rum_softc *, 195 struct ieee80211_channel *); 196 static void rum_set_chan(struct rum_softc *, 197 struct ieee80211_channel *); 198 static void rum_enable_tsf_sync(struct rum_softc *); 199 static void rum_enable_tsf(struct rum_softc *); 200 static void rum_update_slot(struct ifnet *); 201 static void rum_set_bssid(struct rum_softc *, const uint8_t *); 202 static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 203 static void rum_update_mcast(struct ifnet *); 204 static void rum_update_promisc(struct ifnet *); 205 static void rum_setpromisc(struct rum_softc *); 206 static const char *rum_get_rf(int); 207 static void rum_read_eeprom(struct rum_softc *); 208 static int rum_bbp_init(struct rum_softc *); 209 static void rum_init_locked(struct rum_softc *); 210 static void rum_init(void *); 211 static void rum_stop(struct rum_softc *); 212 static void rum_load_microcode(struct rum_softc *, const uint8_t *, 213 size_t); 214 static void rum_prepare_beacon(struct rum_softc *, 215 struct ieee80211vap *); 216 static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 217 const struct ieee80211_bpf_params *); 218 static void rum_scan_start(struct ieee80211com *); 219 static void rum_scan_end(struct ieee80211com *); 220 static void rum_set_channel(struct ieee80211com *); 221 static int rum_get_rssi(struct rum_softc *, uint8_t); 222 static void rum_ratectl_start(struct rum_softc *, 223 struct ieee80211_node *); 224 static void rum_ratectl_timeout(void *); 225 static void rum_ratectl_task(void *, int); 226 static int rum_pause(struct rum_softc *, int); 227 228 static const struct { 229 uint32_t reg; 230 uint32_t val; 231 } rum_def_mac[] = { 232 { RT2573_TXRX_CSR0, 0x025fb032 }, 233 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 234 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 235 { RT2573_TXRX_CSR3, 0x00858687 }, 236 { RT2573_TXRX_CSR7, 0x2e31353b }, 237 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 238 { RT2573_TXRX_CSR15, 0x0000000f }, 239 { RT2573_MAC_CSR6, 0x00000fff }, 240 { RT2573_MAC_CSR8, 0x016c030a }, 241 { RT2573_MAC_CSR10, 0x00000718 }, 242 { RT2573_MAC_CSR12, 0x00000004 }, 243 { RT2573_MAC_CSR13, 0x00007f00 }, 244 { RT2573_SEC_CSR0, 0x00000000 }, 245 { RT2573_SEC_CSR1, 0x00000000 }, 246 { RT2573_SEC_CSR5, 0x00000000 }, 247 { RT2573_PHY_CSR1, 0x000023b0 }, 248 { RT2573_PHY_CSR5, 0x00040a06 }, 249 { RT2573_PHY_CSR6, 0x00080606 }, 250 { RT2573_PHY_CSR7, 0x00000408 }, 251 { RT2573_AIFSN_CSR, 0x00002273 }, 252 { RT2573_CWMIN_CSR, 0x00002344 }, 253 { RT2573_CWMAX_CSR, 0x000034aa } 254 }; 255 256 static const struct { 257 uint8_t reg; 258 uint8_t val; 259 } rum_def_bbp[] = { 260 { 3, 0x80 }, 261 { 15, 0x30 }, 262 { 17, 0x20 }, 263 { 21, 0xc8 }, 264 { 22, 0x38 }, 265 { 23, 0x06 }, 266 { 24, 0xfe }, 267 { 25, 0x0a }, 268 { 26, 0x0d }, 269 { 32, 0x0b }, 270 { 34, 0x12 }, 271 { 37, 0x07 }, 272 { 39, 0xf8 }, 273 { 41, 0x60 }, 274 { 53, 0x10 }, 275 { 54, 0x18 }, 276 { 60, 0x10 }, 277 { 61, 0x04 }, 278 { 62, 0x04 }, 279 { 75, 0xfe }, 280 { 86, 0xfe }, 281 { 88, 0xfe }, 282 { 90, 0x0f }, 283 { 99, 0x00 }, 284 { 102, 0x16 }, 285 { 107, 0x04 } 286 }; 287 288 static const struct rfprog { 289 uint8_t chan; 290 uint32_t r1, r2, r3, r4; 291 } rum_rf5226[] = { 292 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 293 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 294 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 295 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 296 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 297 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 298 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 299 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 300 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 301 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 302 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 303 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 304 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 305 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 306 307 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 308 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 309 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 310 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 311 312 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 313 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 314 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 315 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 316 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 317 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 318 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 319 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 320 321 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 322 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 323 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 324 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 325 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 326 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 327 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 328 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 329 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 330 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 331 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 332 333 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 334 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 335 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 336 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 337 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 338 }, rum_rf5225[] = { 339 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 340 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 341 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 342 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 343 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 344 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 345 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 346 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 347 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 348 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 349 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 350 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 351 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 352 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 353 354 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 355 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 356 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 357 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 358 359 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 360 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 361 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 362 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 363 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 364 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 365 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 366 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 367 368 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 369 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 370 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 371 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 372 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 373 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 374 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 375 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 376 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 377 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 378 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 379 380 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 381 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 382 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 383 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 384 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 385 }; 386 387 static const struct usb_config rum_config[RUM_N_TRANSFER] = { 388 [RUM_BULK_WR] = { 389 .type = UE_BULK, 390 .endpoint = UE_ADDR_ANY, 391 .direction = UE_DIR_OUT, 392 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 393 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 394 .callback = rum_bulk_write_callback, 395 .timeout = 5000, /* ms */ 396 }, 397 [RUM_BULK_RD] = { 398 .type = UE_BULK, 399 .endpoint = UE_ADDR_ANY, 400 .direction = UE_DIR_IN, 401 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 402 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 403 .callback = rum_bulk_read_callback, 404 }, 405 }; 406 407 static int 408 rum_match(device_t self) 409 { 410 struct usb_attach_arg *uaa = device_get_ivars(self); 411 412 if (uaa->usb_mode != USB_MODE_HOST) 413 return (ENXIO); 414 if (uaa->info.bConfigIndex != 0) 415 return (ENXIO); 416 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 417 return (ENXIO); 418 419 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 420 } 421 422 static int 423 rum_attach(device_t self) 424 { 425 struct usb_attach_arg *uaa = device_get_ivars(self); 426 struct rum_softc *sc = device_get_softc(self); 427 struct ieee80211com *ic; 428 struct ifnet *ifp; 429 uint8_t iface_index, bands; 430 uint32_t tmp; 431 int error, ntries; 432 433 wlan_serialize_enter(); 434 device_set_usb_desc(self); 435 sc->sc_udev = uaa->device; 436 sc->sc_dev = self; 437 438 lockinit(&sc->sc_lock, device_get_nameunit(self), 0, LK_CANRECURSE); 439 440 iface_index = RT2573_IFACE_INDEX; 441 error = usbd_transfer_setup(uaa->device, &iface_index, 442 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_lock); 443 if (error) { 444 device_printf(self, "could not allocate USB transfers, " 445 "err=%s\n", usbd_errstr(error)); 446 goto detach; 447 } 448 449 RUM_LOCK(sc); 450 /* retrieve RT2573 rev. no */ 451 for (ntries = 0; ntries < 100; ntries++) { 452 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 453 break; 454 if (rum_pause(sc, hz / 100)) 455 break; 456 } 457 if (ntries == 100) { 458 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 459 RUM_UNLOCK(sc); 460 goto detach; 461 } 462 463 /* retrieve MAC address and various other things from EEPROM */ 464 rum_read_eeprom(sc); 465 466 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 467 tmp, rum_get_rf(sc->rf_rev)); 468 469 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 470 RUM_UNLOCK(sc); 471 472 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 473 if (ifp == NULL) { 474 device_printf(sc->sc_dev, "can not if_alloc()\n"); 475 goto detach; 476 } 477 ic = ifp->if_l2com; 478 479 ifp->if_softc = sc; 480 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 481 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 482 ifp->if_init = rum_init; 483 ifp->if_ioctl = rum_ioctl; 484 ifp->if_start = rum_start; 485 ifq_set_maxlen(&ifp->if_snd, ifqmaxlen); 486 #if 0 /* XXX swildner: see c3d4131842e47b168d93a0650d58d425ebeef789 */ 487 ifq_set_ready(&ifp->if_snd); 488 #endif 489 490 ic->ic_ifp = ifp; 491 ic->ic_opmode = IEEE80211_M_STA; 492 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 493 494 /* set device capabilities */ 495 ic->ic_caps = 496 IEEE80211_C_STA /* station mode supported */ 497 | IEEE80211_C_IBSS /* IBSS mode supported */ 498 | IEEE80211_C_MONITOR /* monitor mode supported */ 499 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 500 | IEEE80211_C_TXPMGT /* tx power management */ 501 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 502 | IEEE80211_C_SHSLOT /* short slot time supported */ 503 | IEEE80211_C_BGSCAN /* bg scanning supported */ 504 | IEEE80211_C_WPA /* 802.11i */ 505 ; 506 507 bands = 0; 508 setbit(&bands, IEEE80211_MODE_11B); 509 setbit(&bands, IEEE80211_MODE_11G); 510 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 511 setbit(&bands, IEEE80211_MODE_11A); 512 ieee80211_init_channels(ic, NULL, &bands); 513 514 ieee80211_ifattach(ic, sc->sc_bssid); 515 ic->ic_newassoc = rum_newassoc; 516 ic->ic_update_promisc = rum_update_promisc; 517 ic->ic_raw_xmit = rum_raw_xmit; 518 ic->ic_scan_start = rum_scan_start; 519 ic->ic_scan_end = rum_scan_end; 520 ic->ic_set_channel = rum_set_channel; 521 522 ic->ic_vap_create = rum_vap_create; 523 ic->ic_vap_delete = rum_vap_delete; 524 ic->ic_update_mcast = rum_update_mcast; 525 526 ieee80211_radiotap_attach(ic, 527 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 528 RT2573_TX_RADIOTAP_PRESENT, 529 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 530 RT2573_RX_RADIOTAP_PRESENT); 531 532 if (bootverbose) 533 ieee80211_announce(ic); 534 535 wlan_serialize_exit(); 536 return (0); 537 538 detach: 539 wlan_serialize_exit(); 540 rum_detach(self); 541 return (ENXIO); /* failure */ 542 } 543 544 static int 545 rum_detach(device_t self) 546 { 547 struct rum_softc *sc = device_get_softc(self); 548 struct ifnet *ifp = sc->sc_ifp; 549 struct ieee80211com *ic; 550 551 wlan_serialize_enter(); 552 /* Prevent further ioctls */ 553 sc->sc_detached = 1; 554 555 /* stop all USB transfers */ 556 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 557 558 /* free TX list, if any */ 559 RUM_LOCK(sc); 560 rum_unsetup_tx_list(sc); 561 RUM_UNLOCK(sc); 562 563 if (ifp) { 564 ic = ifp->if_l2com; 565 ieee80211_ifdetach(ic); 566 if_free(ifp); 567 } 568 lockuninit(&sc->sc_lock); 569 wlan_serialize_exit(); 570 return (0); 571 } 572 573 static usb_error_t 574 rum_do_request(struct rum_softc *sc, 575 struct usb_device_request *req, void *data) 576 { 577 usb_error_t err; 578 int ntries = 10; 579 580 while (ntries--) { 581 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_lock, 582 req, data, 0, NULL, 250 /* ms */); 583 if (err == 0) 584 break; 585 586 DPRINTFN(1, "Control request failed, %s (retrying)\n", 587 usbd_errstr(err)); 588 if (rum_pause(sc, hz / 100)) 589 break; 590 } 591 return (err); 592 } 593 594 static struct ieee80211vap * 595 rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 596 enum ieee80211_opmode opmode, int flags, 597 const uint8_t bssid[IEEE80211_ADDR_LEN], 598 const uint8_t mac[IEEE80211_ADDR_LEN]) 599 { 600 struct rum_softc *sc = ic->ic_ifp->if_softc; 601 struct rum_vap *rvp; 602 struct ieee80211vap *vap; 603 604 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 605 return NULL; 606 rvp = (struct rum_vap *) kmalloc(sizeof(struct rum_vap), 607 M_80211_VAP, M_INTWAIT | M_ZERO); 608 vap = &rvp->vap; 609 /* enable s/w bmiss handling for sta mode */ 610 ieee80211_vap_setup(ic, vap, name, unit, opmode, 611 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 612 613 /* override state transition machine */ 614 rvp->newstate = vap->iv_newstate; 615 vap->iv_newstate = rum_newstate; 616 617 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_lock, 0); 618 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 619 ieee80211_ratectl_init(vap); 620 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 621 /* complete setup */ 622 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 623 ic->ic_opmode = opmode; 624 return vap; 625 } 626 627 static void 628 rum_vap_delete(struct ieee80211vap *vap) 629 { 630 struct rum_vap *rvp = RUM_VAP(vap); 631 struct ieee80211com *ic = vap->iv_ic; 632 633 usb_callout_drain(&rvp->ratectl_ch); 634 ieee80211_draintask(ic, &rvp->ratectl_task); 635 ieee80211_ratectl_deinit(vap); 636 ieee80211_vap_detach(vap); 637 kfree(rvp, M_80211_VAP); 638 } 639 640 static void 641 rum_tx_free(struct rum_tx_data *data, int txerr) 642 { 643 struct rum_softc *sc = data->sc; 644 645 if (data->m != NULL) { 646 if (data->m->m_flags & M_TXCB) 647 ieee80211_process_callback(data->ni, data->m, 648 txerr ? ETIMEDOUT : 0); 649 m_freem(data->m); 650 data->m = NULL; 651 652 ieee80211_free_node(data->ni); 653 data->ni = NULL; 654 } 655 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 656 sc->tx_nfree++; 657 } 658 659 static void 660 rum_setup_tx_list(struct rum_softc *sc) 661 { 662 struct rum_tx_data *data; 663 int i; 664 665 sc->tx_nfree = 0; 666 STAILQ_INIT(&sc->tx_q); 667 STAILQ_INIT(&sc->tx_free); 668 669 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 670 data = &sc->tx_data[i]; 671 672 data->sc = sc; 673 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 674 sc->tx_nfree++; 675 } 676 } 677 678 static void 679 rum_unsetup_tx_list(struct rum_softc *sc) 680 { 681 struct rum_tx_data *data; 682 int i; 683 684 /* make sure any subsequent use of the queues will fail */ 685 sc->tx_nfree = 0; 686 STAILQ_INIT(&sc->tx_q); 687 STAILQ_INIT(&sc->tx_free); 688 689 /* free up all node references and mbufs */ 690 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 691 data = &sc->tx_data[i]; 692 693 if (data->m != NULL) { 694 m_freem(data->m); 695 data->m = NULL; 696 } 697 if (data->ni != NULL) { 698 ieee80211_free_node(data->ni); 699 data->ni = NULL; 700 } 701 } 702 } 703 704 static void 705 rum_newassoc(struct ieee80211_node *ni, int isnew) 706 { 707 ieee80211_ratectl_node_deinit(ni); 708 ieee80211_ratectl_node_init(ni); 709 } 710 711 static int 712 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 713 { 714 struct rum_vap *rvp = RUM_VAP(vap); 715 struct ieee80211com *ic = vap->iv_ic; 716 struct rum_softc *sc = ic->ic_ifp->if_softc; 717 const struct ieee80211_txparam *tp; 718 enum ieee80211_state ostate; 719 struct ieee80211_node *ni; 720 uint32_t tmp; 721 722 ostate = vap->iv_state; 723 DPRINTF("%s -> %s\n", 724 ieee80211_state_name[ostate], 725 ieee80211_state_name[nstate]); 726 727 #if 0 /* XXX swildner: needed? */ 728 IEEE80211_UNLOCK(ic); 729 #endif 730 RUM_LOCK(sc); 731 usb_callout_stop(&rvp->ratectl_ch); 732 733 switch (nstate) { 734 case IEEE80211_S_INIT: 735 if (ostate == IEEE80211_S_RUN) { 736 /* abort TSF synchronization */ 737 tmp = rum_read(sc, RT2573_TXRX_CSR9); 738 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 739 } 740 break; 741 742 case IEEE80211_S_RUN: 743 ni = ieee80211_ref_node(vap->iv_bss); 744 745 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 746 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 747 RUM_UNLOCK(sc); 748 #if 0 /* XXX swildner: needed? */ 749 IEEE80211_LOCK(ic); 750 #endif 751 ieee80211_free_node(ni); 752 return (-1); 753 } 754 rum_update_slot(ic->ic_ifp); 755 rum_enable_mrr(sc); 756 rum_set_txpreamble(sc); 757 rum_set_basicrates(sc); 758 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 759 rum_set_bssid(sc, sc->sc_bssid); 760 } 761 762 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 763 vap->iv_opmode == IEEE80211_M_IBSS) 764 rum_prepare_beacon(sc, vap); 765 766 if (vap->iv_opmode != IEEE80211_M_MONITOR) 767 rum_enable_tsf_sync(sc); 768 else 769 rum_enable_tsf(sc); 770 771 /* enable automatic rate adaptation */ 772 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 773 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 774 rum_ratectl_start(sc, ni); 775 ieee80211_free_node(ni); 776 break; 777 default: 778 break; 779 } 780 RUM_UNLOCK(sc); 781 #if 0 /* XXX swildner: needed? */ 782 IEEE80211_LOCK(ic); 783 #endif 784 return (rvp->newstate(vap, nstate, arg)); 785 } 786 787 static void 788 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 789 { 790 struct rum_softc *sc = usbd_xfer_softc(xfer); 791 struct ifnet *ifp = sc->sc_ifp; 792 struct ieee80211vap *vap; 793 struct rum_tx_data *data; 794 struct mbuf *m; 795 struct usb_page_cache *pc; 796 unsigned int len; 797 int actlen, sumlen; 798 799 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 800 801 switch (USB_GET_STATE(xfer)) { 802 case USB_ST_TRANSFERRED: 803 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 804 805 /* free resources */ 806 data = usbd_xfer_get_priv(xfer); 807 rum_tx_free(data, 0); 808 usbd_xfer_set_priv(xfer, NULL); 809 810 ifp->if_opackets++; 811 ifq_clr_oactive(&ifp->if_snd); 812 813 /* FALLTHROUGH */ 814 case USB_ST_SETUP: 815 tr_setup: 816 data = STAILQ_FIRST(&sc->tx_q); 817 if (data) { 818 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 819 m = data->m; 820 821 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 822 DPRINTFN(0, "data overflow, %u bytes\n", 823 m->m_pkthdr.len); 824 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 825 } 826 pc = usbd_xfer_get_frame(xfer, 0); 827 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 828 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 829 m->m_pkthdr.len); 830 831 vap = data->ni->ni_vap; 832 if (ieee80211_radiotap_active_vap(vap)) { 833 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 834 835 tap->wt_flags = 0; 836 tap->wt_rate = data->rate; 837 tap->wt_antenna = sc->tx_ant; 838 839 ieee80211_radiotap_tx(vap, m); 840 } 841 842 /* align end on a 4-bytes boundary */ 843 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 844 if ((len % 64) == 0) 845 len += 4; 846 847 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 848 m->m_pkthdr.len, len); 849 850 usbd_xfer_set_frame_len(xfer, 0, len); 851 usbd_xfer_set_priv(xfer, data); 852 853 usbd_transfer_submit(xfer); 854 } 855 rum_start_locked(ifp); 856 break; 857 858 default: /* Error */ 859 DPRINTFN(11, "transfer error, %s\n", 860 usbd_errstr(error)); 861 862 ifp->if_oerrors++; 863 data = usbd_xfer_get_priv(xfer); 864 if (data != NULL) { 865 rum_tx_free(data, error); 866 usbd_xfer_set_priv(xfer, NULL); 867 } 868 869 if (error != USB_ERR_CANCELLED) { 870 if (error == USB_ERR_TIMEOUT) 871 device_printf(sc->sc_dev, "device timeout\n"); 872 873 /* 874 * Try to clear stall first, also if other 875 * errors occur, hence clearing stall 876 * introduces a 50 ms delay: 877 */ 878 usbd_xfer_set_stall(xfer); 879 goto tr_setup; 880 } 881 break; 882 } 883 } 884 885 static void 886 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 887 { 888 struct rum_softc *sc = usbd_xfer_softc(xfer); 889 struct ifnet *ifp = sc->sc_ifp; 890 struct ieee80211com *ic = ifp->if_l2com; 891 struct ieee80211_node *ni; 892 struct mbuf *m = NULL; 893 struct usb_page_cache *pc; 894 uint32_t flags; 895 uint8_t rssi = 0; 896 int len; 897 898 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 899 900 switch (USB_GET_STATE(xfer)) { 901 case USB_ST_TRANSFERRED: 902 903 DPRINTFN(15, "rx done, actlen=%d\n", len); 904 905 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 906 DPRINTF("%s: xfer too short %d\n", 907 device_get_nameunit(sc->sc_dev), len); 908 ifp->if_ierrors++; 909 goto tr_setup; 910 } 911 912 len -= RT2573_RX_DESC_SIZE; 913 pc = usbd_xfer_get_frame(xfer, 0); 914 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 915 916 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 917 flags = le32toh(sc->sc_rx_desc.flags); 918 if (flags & RT2573_RX_CRC_ERROR) { 919 /* 920 * This should not happen since we did not 921 * request to receive those frames when we 922 * filled RUM_TXRX_CSR2: 923 */ 924 DPRINTFN(5, "PHY or CRC error\n"); 925 ifp->if_ierrors++; 926 goto tr_setup; 927 } 928 929 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 930 if (m == NULL) { 931 DPRINTF("could not allocate mbuf\n"); 932 ifp->if_ierrors++; 933 goto tr_setup; 934 } 935 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 936 mtod(m, uint8_t *), len); 937 938 /* finalize mbuf */ 939 m->m_pkthdr.rcvif = ifp; 940 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 941 942 if (ieee80211_radiotap_active(ic)) { 943 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 944 945 /* XXX read tsf */ 946 tap->wr_flags = 0; 947 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 948 (flags & RT2573_RX_OFDM) ? 949 IEEE80211_T_OFDM : IEEE80211_T_CCK); 950 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 951 tap->wr_antnoise = RT2573_NOISE_FLOOR; 952 tap->wr_antenna = sc->rx_ant; 953 } 954 /* FALLTHROUGH */ 955 case USB_ST_SETUP: 956 tr_setup: 957 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 958 usbd_transfer_submit(xfer); 959 960 /* 961 * At the end of a USB callback it is always safe to unlock 962 * the private mutex of a device! That is why we do the 963 * "ieee80211_input" here, and not some lines up! 964 */ 965 RUM_UNLOCK(sc); 966 if (m) { 967 ni = ieee80211_find_rxnode(ic, 968 mtod(m, struct ieee80211_frame_min *)); 969 if (ni != NULL) { 970 (void) ieee80211_input(ni, m, rssi, 971 RT2573_NOISE_FLOOR); 972 ieee80211_free_node(ni); 973 } else 974 (void) ieee80211_input_all(ic, m, rssi, 975 RT2573_NOISE_FLOOR); 976 } 977 if (!ifq_is_oactive(&ifp->if_snd) && 978 !ifq_is_empty(&ifp->if_snd)) 979 rum_start_locked(ifp); 980 RUM_LOCK(sc); 981 return; 982 983 default: /* Error */ 984 if (error != USB_ERR_CANCELLED) { 985 /* try to clear stall first */ 986 usbd_xfer_set_stall(xfer); 987 goto tr_setup; 988 } 989 return; 990 } 991 } 992 993 static uint8_t 994 rum_plcp_signal(int rate) 995 { 996 switch (rate) { 997 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 998 case 12: return 0xb; 999 case 18: return 0xf; 1000 case 24: return 0xa; 1001 case 36: return 0xe; 1002 case 48: return 0x9; 1003 case 72: return 0xd; 1004 case 96: return 0x8; 1005 case 108: return 0xc; 1006 1007 /* CCK rates (NB: not IEEE std, device-specific) */ 1008 case 2: return 0x0; 1009 case 4: return 0x1; 1010 case 11: return 0x2; 1011 case 22: return 0x3; 1012 } 1013 return 0xff; /* XXX unsupported/unknown rate */ 1014 } 1015 1016 static void 1017 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1018 uint32_t flags, uint16_t xflags, int len, int rate) 1019 { 1020 struct ifnet *ifp = sc->sc_ifp; 1021 struct ieee80211com *ic = ifp->if_l2com; 1022 uint16_t plcp_length; 1023 int remainder; 1024 1025 desc->flags = htole32(flags); 1026 desc->flags |= htole32(RT2573_TX_VALID); 1027 desc->flags |= htole32(len << 16); 1028 1029 desc->xflags = htole16(xflags); 1030 1031 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1032 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1033 1034 /* setup PLCP fields */ 1035 desc->plcp_signal = rum_plcp_signal(rate); 1036 desc->plcp_service = 4; 1037 1038 len += IEEE80211_CRC_LEN; 1039 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1040 desc->flags |= htole32(RT2573_TX_OFDM); 1041 1042 plcp_length = len & 0xfff; 1043 desc->plcp_length_hi = plcp_length >> 6; 1044 desc->plcp_length_lo = plcp_length & 0x3f; 1045 } else { 1046 plcp_length = (16 * len + rate - 1) / rate; 1047 if (rate == 22) { 1048 remainder = (16 * len) % 22; 1049 if (remainder != 0 && remainder < 7) 1050 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1051 } 1052 desc->plcp_length_hi = plcp_length >> 8; 1053 desc->plcp_length_lo = plcp_length & 0xff; 1054 1055 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1056 desc->plcp_signal |= 0x08; 1057 } 1058 } 1059 1060 static int 1061 rum_sendprot(struct rum_softc *sc, 1062 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1063 { 1064 struct ieee80211com *ic = ni->ni_ic; 1065 const struct ieee80211_frame *wh; 1066 struct rum_tx_data *data; 1067 struct mbuf *mprot; 1068 int protrate, ackrate, pktlen, flags, isshort; 1069 uint16_t dur; 1070 1071 RUM_LOCK_ASSERT(sc, MA_OWNED); 1072 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1073 ("protection %d", prot)); 1074 1075 wh = mtod(m, const struct ieee80211_frame *); 1076 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1077 1078 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1079 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1080 1081 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1082 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1083 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1084 flags = RT2573_TX_MORE_FRAG; 1085 if (prot == IEEE80211_PROT_RTSCTS) { 1086 /* NB: CTS is the same size as an ACK */ 1087 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1088 flags |= RT2573_TX_NEED_ACK; 1089 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1090 } else { 1091 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1092 } 1093 if (mprot == NULL) { 1094 /* XXX stat + msg */ 1095 return (ENOBUFS); 1096 } 1097 data = STAILQ_FIRST(&sc->tx_free); 1098 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1099 sc->tx_nfree--; 1100 1101 data->m = mprot; 1102 data->ni = ieee80211_ref_node(ni); 1103 data->rate = protrate; 1104 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1105 1106 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1107 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1108 1109 return 0; 1110 } 1111 1112 static int 1113 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1114 { 1115 struct ieee80211vap *vap = ni->ni_vap; 1116 struct ifnet *ifp = sc->sc_ifp; 1117 struct ieee80211com *ic = ifp->if_l2com; 1118 struct rum_tx_data *data; 1119 struct ieee80211_frame *wh; 1120 const struct ieee80211_txparam *tp; 1121 struct ieee80211_key *k; 1122 uint32_t flags = 0; 1123 uint16_t dur; 1124 1125 RUM_LOCK_ASSERT(sc, MA_OWNED); 1126 1127 data = STAILQ_FIRST(&sc->tx_free); 1128 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1129 sc->tx_nfree--; 1130 1131 wh = mtod(m0, struct ieee80211_frame *); 1132 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1133 k = ieee80211_crypto_encap(ni, m0); 1134 if (k == NULL) { 1135 m_freem(m0); 1136 return ENOBUFS; 1137 } 1138 wh = mtod(m0, struct ieee80211_frame *); 1139 } 1140 1141 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1142 1143 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1144 flags |= RT2573_TX_NEED_ACK; 1145 1146 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1147 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1148 *(uint16_t *)wh->i_dur = htole16(dur); 1149 1150 /* tell hardware to add timestamp for probe responses */ 1151 if ((wh->i_fc[0] & 1152 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1153 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1154 flags |= RT2573_TX_TIMESTAMP; 1155 } 1156 1157 data->m = m0; 1158 data->ni = ni; 1159 data->rate = tp->mgmtrate; 1160 1161 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1162 1163 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1164 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1165 1166 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1167 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1168 1169 return (0); 1170 } 1171 1172 static int 1173 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1174 const struct ieee80211_bpf_params *params) 1175 { 1176 struct ieee80211com *ic = ni->ni_ic; 1177 struct rum_tx_data *data; 1178 uint32_t flags; 1179 int rate, error; 1180 1181 RUM_LOCK_ASSERT(sc, MA_OWNED); 1182 KASSERT(params != NULL, ("no raw xmit params")); 1183 1184 rate = params->ibp_rate0; 1185 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1186 m_freem(m0); 1187 return EINVAL; 1188 } 1189 flags = 0; 1190 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1191 flags |= RT2573_TX_NEED_ACK; 1192 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1193 error = rum_sendprot(sc, m0, ni, 1194 params->ibp_flags & IEEE80211_BPF_RTS ? 1195 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1196 rate); 1197 if (error || sc->tx_nfree == 0) { 1198 m_freem(m0); 1199 return ENOBUFS; 1200 } 1201 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1202 } 1203 1204 data = STAILQ_FIRST(&sc->tx_free); 1205 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1206 sc->tx_nfree--; 1207 1208 data->m = m0; 1209 data->ni = ni; 1210 data->rate = rate; 1211 1212 /* XXX need to setup descriptor ourself */ 1213 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1214 1215 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1216 m0->m_pkthdr.len, rate); 1217 1218 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1219 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1220 1221 return 0; 1222 } 1223 1224 static int 1225 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1226 { 1227 struct ieee80211vap *vap = ni->ni_vap; 1228 struct ifnet *ifp = sc->sc_ifp; 1229 struct ieee80211com *ic = ifp->if_l2com; 1230 struct rum_tx_data *data; 1231 struct ieee80211_frame *wh; 1232 const struct ieee80211_txparam *tp; 1233 struct ieee80211_key *k; 1234 uint32_t flags = 0; 1235 uint16_t dur; 1236 int error, rate; 1237 1238 #if 0 /* XXX swildner: lock needed? */ 1239 RUM_LOCK_ASSERT(sc, MA_OWNED); 1240 #endif 1241 1242 wh = mtod(m0, struct ieee80211_frame *); 1243 1244 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1245 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1246 rate = tp->mcastrate; 1247 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1248 rate = tp->ucastrate; 1249 else 1250 rate = ni->ni_txrate; 1251 1252 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1253 k = ieee80211_crypto_encap(ni, m0); 1254 if (k == NULL) { 1255 m_freem(m0); 1256 return ENOBUFS; 1257 } 1258 1259 /* packet header may have moved, reset our local pointer */ 1260 wh = mtod(m0, struct ieee80211_frame *); 1261 } 1262 1263 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1264 int prot = IEEE80211_PROT_NONE; 1265 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1266 prot = IEEE80211_PROT_RTSCTS; 1267 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1268 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1269 prot = ic->ic_protmode; 1270 if (prot != IEEE80211_PROT_NONE) { 1271 error = rum_sendprot(sc, m0, ni, prot, rate); 1272 if (error || sc->tx_nfree == 0) { 1273 m_freem(m0); 1274 return ENOBUFS; 1275 } 1276 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1277 } 1278 } 1279 1280 data = STAILQ_FIRST(&sc->tx_free); 1281 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1282 sc->tx_nfree--; 1283 1284 data->m = m0; 1285 data->ni = ni; 1286 data->rate = rate; 1287 1288 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1289 flags |= RT2573_TX_NEED_ACK; 1290 flags |= RT2573_TX_MORE_FRAG; 1291 1292 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1293 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1294 *(uint16_t *)wh->i_dur = htole16(dur); 1295 } 1296 1297 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1298 1299 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1300 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1301 1302 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1303 RUM_LOCK(sc); 1304 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1305 RUM_UNLOCK(sc); 1306 1307 return 0; 1308 } 1309 1310 static void 1311 rum_start_locked(struct ifnet *ifp) 1312 { 1313 struct rum_softc *sc = ifp->if_softc; 1314 struct ieee80211_node *ni; 1315 struct mbuf *m; 1316 1317 if ((ifp->if_flags & IFF_RUNNING) == 0) { 1318 return; 1319 } 1320 for (;;) { 1321 m = ifq_dequeue(&ifp->if_snd); 1322 if (m == NULL) 1323 break; 1324 if (sc->tx_nfree < RUM_TX_MINFREE) { 1325 ifq_prepend(&ifp->if_snd, m); 1326 ifq_set_oactive(&ifp->if_snd); 1327 break; 1328 } 1329 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1330 if (rum_tx_data(sc, m, ni) != 0) { 1331 ieee80211_free_node(ni); 1332 ifp->if_oerrors++; 1333 break; 1334 } 1335 } 1336 } 1337 1338 static void 1339 rum_start(struct ifnet *ifp, struct ifaltq_subque *ifsq) 1340 { 1341 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq); 1342 rum_start_locked(ifp); 1343 } 1344 1345 static int 1346 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred) 1347 { 1348 struct rum_softc *sc = ifp->if_softc; 1349 struct ieee80211com *ic = ifp->if_l2com; 1350 struct ifreq *ifr = (struct ifreq *) data; 1351 int error; 1352 int startall = 0; 1353 1354 RUM_LOCK(sc); 1355 error = sc->sc_detached ? ENXIO : 0; 1356 RUM_UNLOCK(sc); 1357 if (error) 1358 return (error); 1359 1360 switch (cmd) { 1361 case SIOCSIFFLAGS: 1362 RUM_LOCK(sc); 1363 if (ifp->if_flags & IFF_UP) { 1364 if ((ifp->if_flags & IFF_RUNNING) == 0) { 1365 rum_init_locked(sc); 1366 startall = 1; 1367 } else 1368 rum_setpromisc(sc); 1369 } else { 1370 if (ifp->if_flags & IFF_RUNNING) 1371 rum_stop(sc); 1372 } 1373 RUM_UNLOCK(sc); 1374 if (startall) 1375 ieee80211_start_all(ic); 1376 break; 1377 case SIOCGIFMEDIA: 1378 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1379 break; 1380 case SIOCGIFADDR: 1381 error = ether_ioctl(ifp, cmd, data); 1382 break; 1383 default: 1384 error = EINVAL; 1385 break; 1386 } 1387 return error; 1388 } 1389 1390 static void 1391 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1392 { 1393 struct usb_device_request req; 1394 usb_error_t error; 1395 1396 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1397 req.bRequest = RT2573_READ_EEPROM; 1398 USETW(req.wValue, 0); 1399 USETW(req.wIndex, addr); 1400 USETW(req.wLength, len); 1401 1402 error = rum_do_request(sc, &req, buf); 1403 if (error != 0) { 1404 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1405 usbd_errstr(error)); 1406 } 1407 } 1408 1409 static uint32_t 1410 rum_read(struct rum_softc *sc, uint16_t reg) 1411 { 1412 uint32_t val; 1413 1414 rum_read_multi(sc, reg, &val, sizeof val); 1415 1416 return le32toh(val); 1417 } 1418 1419 static void 1420 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1421 { 1422 struct usb_device_request req; 1423 usb_error_t error; 1424 1425 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1426 req.bRequest = RT2573_READ_MULTI_MAC; 1427 USETW(req.wValue, 0); 1428 USETW(req.wIndex, reg); 1429 USETW(req.wLength, len); 1430 1431 error = rum_do_request(sc, &req, buf); 1432 if (error != 0) { 1433 device_printf(sc->sc_dev, 1434 "could not multi read MAC register: %s\n", 1435 usbd_errstr(error)); 1436 } 1437 } 1438 1439 static usb_error_t 1440 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1441 { 1442 uint32_t tmp = htole32(val); 1443 1444 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1445 } 1446 1447 static usb_error_t 1448 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1449 { 1450 struct usb_device_request req; 1451 usb_error_t error; 1452 size_t offset; 1453 1454 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1455 req.bRequest = RT2573_WRITE_MULTI_MAC; 1456 USETW(req.wValue, 0); 1457 1458 /* write at most 64 bytes at a time */ 1459 for (offset = 0; offset < len; offset += 64) { 1460 USETW(req.wIndex, reg + offset); 1461 USETW(req.wLength, MIN(len - offset, 64)); 1462 1463 error = rum_do_request(sc, &req, (char *)buf + offset); 1464 if (error != 0) { 1465 device_printf(sc->sc_dev, 1466 "could not multi write MAC register: %s\n", 1467 usbd_errstr(error)); 1468 return (error); 1469 } 1470 } 1471 1472 return (USB_ERR_NORMAL_COMPLETION); 1473 } 1474 1475 static void 1476 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1477 { 1478 uint32_t tmp; 1479 int ntries; 1480 1481 DPRINTFN(2, "reg=0x%08x\n", reg); 1482 1483 for (ntries = 0; ntries < 100; ntries++) { 1484 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1485 break; 1486 if (rum_pause(sc, hz / 100)) 1487 break; 1488 } 1489 if (ntries == 100) { 1490 device_printf(sc->sc_dev, "could not write to BBP\n"); 1491 return; 1492 } 1493 1494 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1495 rum_write(sc, RT2573_PHY_CSR3, tmp); 1496 } 1497 1498 static uint8_t 1499 rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1500 { 1501 uint32_t val; 1502 int ntries; 1503 1504 DPRINTFN(2, "reg=0x%08x\n", reg); 1505 1506 for (ntries = 0; ntries < 100; ntries++) { 1507 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1508 break; 1509 if (rum_pause(sc, hz / 100)) 1510 break; 1511 } 1512 if (ntries == 100) { 1513 device_printf(sc->sc_dev, "could not read BBP\n"); 1514 return 0; 1515 } 1516 1517 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1518 rum_write(sc, RT2573_PHY_CSR3, val); 1519 1520 for (ntries = 0; ntries < 100; ntries++) { 1521 val = rum_read(sc, RT2573_PHY_CSR3); 1522 if (!(val & RT2573_BBP_BUSY)) 1523 return val & 0xff; 1524 if (rum_pause(sc, hz / 100)) 1525 break; 1526 } 1527 1528 device_printf(sc->sc_dev, "could not read BBP\n"); 1529 return 0; 1530 } 1531 1532 static void 1533 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1534 { 1535 uint32_t tmp; 1536 int ntries; 1537 1538 for (ntries = 0; ntries < 100; ntries++) { 1539 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1540 break; 1541 if (rum_pause(sc, hz / 100)) 1542 break; 1543 } 1544 if (ntries == 100) { 1545 device_printf(sc->sc_dev, "could not write to RF\n"); 1546 return; 1547 } 1548 1549 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1550 (reg & 3); 1551 rum_write(sc, RT2573_PHY_CSR4, tmp); 1552 1553 /* remember last written value in sc */ 1554 sc->rf_regs[reg] = val; 1555 1556 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1557 } 1558 1559 static void 1560 rum_select_antenna(struct rum_softc *sc) 1561 { 1562 uint8_t bbp4, bbp77; 1563 uint32_t tmp; 1564 1565 bbp4 = rum_bbp_read(sc, 4); 1566 bbp77 = rum_bbp_read(sc, 77); 1567 1568 /* TBD */ 1569 1570 /* make sure Rx is disabled before switching antenna */ 1571 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1572 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1573 1574 rum_bbp_write(sc, 4, bbp4); 1575 rum_bbp_write(sc, 77, bbp77); 1576 1577 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1578 } 1579 1580 /* 1581 * Enable multi-rate retries for frames sent at OFDM rates. 1582 * In 802.11b/g mode, allow fallback to CCK rates. 1583 */ 1584 static void 1585 rum_enable_mrr(struct rum_softc *sc) 1586 { 1587 struct ifnet *ifp = sc->sc_ifp; 1588 struct ieee80211com *ic = ifp->if_l2com; 1589 uint32_t tmp; 1590 1591 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1592 1593 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1594 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1595 tmp |= RT2573_MRR_CCK_FALLBACK; 1596 tmp |= RT2573_MRR_ENABLED; 1597 1598 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1599 } 1600 1601 static void 1602 rum_set_txpreamble(struct rum_softc *sc) 1603 { 1604 struct ifnet *ifp = sc->sc_ifp; 1605 struct ieee80211com *ic = ifp->if_l2com; 1606 uint32_t tmp; 1607 1608 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1609 1610 tmp &= ~RT2573_SHORT_PREAMBLE; 1611 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1612 tmp |= RT2573_SHORT_PREAMBLE; 1613 1614 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1615 } 1616 1617 static void 1618 rum_set_basicrates(struct rum_softc *sc) 1619 { 1620 struct ifnet *ifp = sc->sc_ifp; 1621 struct ieee80211com *ic = ifp->if_l2com; 1622 1623 /* update basic rate set */ 1624 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1625 /* 11b basic rates: 1, 2Mbps */ 1626 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1627 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1628 /* 11a basic rates: 6, 12, 24Mbps */ 1629 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1630 } else { 1631 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1632 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1633 } 1634 } 1635 1636 /* 1637 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1638 * driver. 1639 */ 1640 static void 1641 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1642 { 1643 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1644 uint32_t tmp; 1645 1646 /* update all BBP registers that depend on the band */ 1647 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1648 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1649 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1650 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1651 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1652 } 1653 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1654 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1655 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1656 } 1657 1658 sc->bbp17 = bbp17; 1659 rum_bbp_write(sc, 17, bbp17); 1660 rum_bbp_write(sc, 96, bbp96); 1661 rum_bbp_write(sc, 104, bbp104); 1662 1663 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1664 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1665 rum_bbp_write(sc, 75, 0x80); 1666 rum_bbp_write(sc, 86, 0x80); 1667 rum_bbp_write(sc, 88, 0x80); 1668 } 1669 1670 rum_bbp_write(sc, 35, bbp35); 1671 rum_bbp_write(sc, 97, bbp97); 1672 rum_bbp_write(sc, 98, bbp98); 1673 1674 tmp = rum_read(sc, RT2573_PHY_CSR0); 1675 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1676 if (IEEE80211_IS_CHAN_2GHZ(c)) 1677 tmp |= RT2573_PA_PE_2GHZ; 1678 else 1679 tmp |= RT2573_PA_PE_5GHZ; 1680 rum_write(sc, RT2573_PHY_CSR0, tmp); 1681 } 1682 1683 static void 1684 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1685 { 1686 struct ifnet *ifp = sc->sc_ifp; 1687 struct ieee80211com *ic = ifp->if_l2com; 1688 const struct rfprog *rfprog; 1689 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1690 int8_t power; 1691 int i, chan; 1692 1693 chan = ieee80211_chan2ieee(ic, c); 1694 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1695 return; 1696 1697 /* select the appropriate RF settings based on what EEPROM says */ 1698 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1699 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1700 1701 /* find the settings for this channel (we know it exists) */ 1702 for (i = 0; rfprog[i].chan != chan; i++); 1703 1704 power = sc->txpow[i]; 1705 if (power < 0) { 1706 bbp94 += power; 1707 power = 0; 1708 } else if (power > 31) { 1709 bbp94 += power - 31; 1710 power = 31; 1711 } 1712 1713 /* 1714 * If we are switching from the 2GHz band to the 5GHz band or 1715 * vice-versa, BBP registers need to be reprogrammed. 1716 */ 1717 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1718 rum_select_band(sc, c); 1719 rum_select_antenna(sc); 1720 } 1721 ic->ic_curchan = c; 1722 1723 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1724 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1725 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1726 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1727 1728 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1729 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1730 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1731 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1732 1733 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1734 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1735 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1736 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1737 1738 rum_pause(sc, hz / 100); 1739 1740 /* enable smart mode for MIMO-capable RFs */ 1741 bbp3 = rum_bbp_read(sc, 3); 1742 1743 bbp3 &= ~RT2573_SMART_MODE; 1744 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1745 bbp3 |= RT2573_SMART_MODE; 1746 1747 rum_bbp_write(sc, 3, bbp3); 1748 1749 if (bbp94 != RT2573_BBPR94_DEFAULT) 1750 rum_bbp_write(sc, 94, bbp94); 1751 1752 /* give the chip some extra time to do the switchover */ 1753 rum_pause(sc, hz / 100); 1754 } 1755 1756 /* 1757 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1758 * and HostAP operating modes. 1759 */ 1760 static void 1761 rum_enable_tsf_sync(struct rum_softc *sc) 1762 { 1763 struct ifnet *ifp = sc->sc_ifp; 1764 struct ieee80211com *ic = ifp->if_l2com; 1765 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1766 uint32_t tmp; 1767 1768 if (vap->iv_opmode != IEEE80211_M_STA) { 1769 /* 1770 * Change default 16ms TBTT adjustment to 8ms. 1771 * Must be done before enabling beacon generation. 1772 */ 1773 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1774 } 1775 1776 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1777 1778 /* set beacon interval (in 1/16ms unit) */ 1779 tmp |= vap->iv_bss->ni_intval * 16; 1780 1781 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1782 if (vap->iv_opmode == IEEE80211_M_STA) 1783 tmp |= RT2573_TSF_MODE(1); 1784 else 1785 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1786 1787 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1788 } 1789 1790 static void 1791 rum_enable_tsf(struct rum_softc *sc) 1792 { 1793 rum_write(sc, RT2573_TXRX_CSR9, 1794 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1795 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1796 } 1797 1798 static void 1799 rum_update_slot(struct ifnet *ifp) 1800 { 1801 struct rum_softc *sc = ifp->if_softc; 1802 struct ieee80211com *ic = ifp->if_l2com; 1803 uint8_t slottime; 1804 uint32_t tmp; 1805 1806 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1807 1808 tmp = rum_read(sc, RT2573_MAC_CSR9); 1809 tmp = (tmp & ~0xff) | slottime; 1810 rum_write(sc, RT2573_MAC_CSR9, tmp); 1811 1812 DPRINTF("setting slot time to %uus\n", slottime); 1813 } 1814 1815 static void 1816 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1817 { 1818 uint32_t tmp; 1819 1820 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1821 rum_write(sc, RT2573_MAC_CSR4, tmp); 1822 1823 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1824 rum_write(sc, RT2573_MAC_CSR5, tmp); 1825 } 1826 1827 static void 1828 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1829 { 1830 uint32_t tmp; 1831 1832 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1833 rum_write(sc, RT2573_MAC_CSR2, tmp); 1834 1835 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1836 rum_write(sc, RT2573_MAC_CSR3, tmp); 1837 } 1838 1839 static void 1840 rum_setpromisc(struct rum_softc *sc) 1841 { 1842 struct ifnet *ifp = sc->sc_ifp; 1843 uint32_t tmp; 1844 1845 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1846 1847 tmp &= ~RT2573_DROP_NOT_TO_ME; 1848 if (!(ifp->if_flags & IFF_PROMISC)) 1849 tmp |= RT2573_DROP_NOT_TO_ME; 1850 1851 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1852 1853 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1854 "entering" : "leaving"); 1855 } 1856 1857 static void 1858 rum_update_promisc(struct ifnet *ifp) 1859 { 1860 struct rum_softc *sc = ifp->if_softc; 1861 1862 if ((ifp->if_flags & IFF_RUNNING) == 0) 1863 return; 1864 1865 RUM_LOCK(sc); 1866 rum_setpromisc(sc); 1867 RUM_UNLOCK(sc); 1868 } 1869 1870 static void 1871 rum_update_mcast(struct ifnet *ifp) 1872 { 1873 static int warning_printed; 1874 1875 if (warning_printed == 0) { 1876 if_printf(ifp, "need to implement %s\n", __func__); 1877 warning_printed = 1; 1878 } 1879 } 1880 1881 static const char * 1882 rum_get_rf(int rev) 1883 { 1884 switch (rev) { 1885 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1886 case RT2573_RF_2528: return "RT2528"; 1887 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1888 case RT2573_RF_5226: return "RT5226"; 1889 default: return "unknown"; 1890 } 1891 } 1892 1893 static void 1894 rum_read_eeprom(struct rum_softc *sc) 1895 { 1896 uint16_t val; 1897 #ifdef RUM_DEBUG 1898 int i; 1899 #endif 1900 1901 /* read MAC address */ 1902 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1903 1904 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1905 val = le16toh(val); 1906 sc->rf_rev = (val >> 11) & 0x1f; 1907 sc->hw_radio = (val >> 10) & 0x1; 1908 sc->rx_ant = (val >> 4) & 0x3; 1909 sc->tx_ant = (val >> 2) & 0x3; 1910 sc->nb_ant = val & 0x3; 1911 1912 DPRINTF("RF revision=%d\n", sc->rf_rev); 1913 1914 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1915 val = le16toh(val); 1916 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1917 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1918 1919 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1920 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1921 1922 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1923 val = le16toh(val); 1924 if ((val & 0xff) != 0xff) 1925 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1926 1927 /* Only [-10, 10] is valid */ 1928 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1929 sc->rssi_2ghz_corr = 0; 1930 1931 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1932 val = le16toh(val); 1933 if ((val & 0xff) != 0xff) 1934 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1935 1936 /* Only [-10, 10] is valid */ 1937 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1938 sc->rssi_5ghz_corr = 0; 1939 1940 if (sc->ext_2ghz_lna) 1941 sc->rssi_2ghz_corr -= 14; 1942 if (sc->ext_5ghz_lna) 1943 sc->rssi_5ghz_corr -= 14; 1944 1945 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1946 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1947 1948 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1949 val = le16toh(val); 1950 if ((val & 0xff) != 0xff) 1951 sc->rffreq = val & 0xff; 1952 1953 DPRINTF("RF freq=%d\n", sc->rffreq); 1954 1955 /* read Tx power for all a/b/g channels */ 1956 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1957 /* XXX default Tx power for 802.11a channels */ 1958 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1959 #ifdef RUM_DEBUG 1960 for (i = 0; i < 14; i++) 1961 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1962 #endif 1963 1964 /* read default values for BBP registers */ 1965 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1966 #ifdef RUM_DEBUG 1967 for (i = 0; i < 14; i++) { 1968 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1969 continue; 1970 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1971 sc->bbp_prom[i].val); 1972 } 1973 #endif 1974 } 1975 1976 static int 1977 rum_bbp_init(struct rum_softc *sc) 1978 { 1979 int i, ntries; 1980 1981 /* wait for BBP to be ready */ 1982 for (ntries = 0; ntries < 100; ntries++) { 1983 const uint8_t val = rum_bbp_read(sc, 0); 1984 if (val != 0 && val != 0xff) 1985 break; 1986 if (rum_pause(sc, hz / 100)) 1987 break; 1988 } 1989 if (ntries == 100) { 1990 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1991 return EIO; 1992 } 1993 1994 /* initialize BBP registers to default values */ 1995 for (i = 0; i < N(rum_def_bbp); i++) 1996 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1997 1998 /* write vendor-specific BBP values (from EEPROM) */ 1999 for (i = 0; i < 16; i++) { 2000 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2001 continue; 2002 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2003 } 2004 2005 return 0; 2006 } 2007 2008 static void 2009 rum_init_locked(struct rum_softc *sc) 2010 { 2011 struct ifnet *ifp = sc->sc_ifp; 2012 struct ieee80211com *ic = ifp->if_l2com; 2013 uint32_t tmp; 2014 usb_error_t error; 2015 int i, ntries; 2016 2017 RUM_LOCK_ASSERT(sc, MA_OWNED); 2018 2019 rum_stop(sc); 2020 2021 /* initialize MAC registers to default values */ 2022 for (i = 0; i < N(rum_def_mac); i++) 2023 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2024 2025 /* set host ready */ 2026 rum_write(sc, RT2573_MAC_CSR1, 3); 2027 rum_write(sc, RT2573_MAC_CSR1, 0); 2028 2029 /* wait for BBP/RF to wakeup */ 2030 for (ntries = 0; ntries < 100; ntries++) { 2031 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2032 break; 2033 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2034 if (rum_pause(sc, hz / 100)) 2035 break; 2036 } 2037 if (ntries == 100) { 2038 device_printf(sc->sc_dev, 2039 "timeout waiting for BBP/RF to wakeup\n"); 2040 goto fail; 2041 } 2042 2043 if ((error = rum_bbp_init(sc)) != 0) 2044 goto fail; 2045 2046 /* select default channel */ 2047 rum_select_band(sc, ic->ic_curchan); 2048 rum_select_antenna(sc); 2049 rum_set_chan(sc, ic->ic_curchan); 2050 2051 /* clear STA registers */ 2052 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2053 2054 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2055 2056 /* initialize ASIC */ 2057 rum_write(sc, RT2573_MAC_CSR1, 4); 2058 2059 /* 2060 * Allocate Tx and Rx xfer queues. 2061 */ 2062 rum_setup_tx_list(sc); 2063 2064 /* update Rx filter */ 2065 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2066 2067 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2068 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2069 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2070 RT2573_DROP_ACKCTS; 2071 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2072 tmp |= RT2573_DROP_TODS; 2073 if (!(ifp->if_flags & IFF_PROMISC)) 2074 tmp |= RT2573_DROP_NOT_TO_ME; 2075 } 2076 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2077 2078 ifq_clr_oactive(&ifp->if_snd); 2079 ifp->if_flags |= IFF_RUNNING; 2080 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2081 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2082 return; 2083 2084 fail: rum_stop(sc); 2085 #undef N 2086 } 2087 2088 static void 2089 rum_init(void *priv) 2090 { 2091 struct rum_softc *sc = priv; 2092 struct ifnet *ifp = sc->sc_ifp; 2093 struct ieee80211com *ic = ifp->if_l2com; 2094 2095 RUM_LOCK(sc); 2096 rum_init_locked(sc); 2097 RUM_UNLOCK(sc); 2098 2099 if (ifp->if_flags & IFF_RUNNING) 2100 ieee80211_start_all(ic); /* start all vap's */ 2101 } 2102 2103 static void 2104 rum_stop(struct rum_softc *sc) 2105 { 2106 struct ifnet *ifp = sc->sc_ifp; 2107 uint32_t tmp; 2108 2109 RUM_LOCK_ASSERT(sc, MA_OWNED); 2110 2111 ifp->if_flags &= ~IFF_RUNNING; 2112 ifq_clr_oactive(&ifp->if_snd); 2113 2114 RUM_UNLOCK(sc); 2115 2116 /* 2117 * Drain the USB transfers, if not already drained: 2118 */ 2119 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2120 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2121 2122 RUM_LOCK(sc); 2123 2124 rum_unsetup_tx_list(sc); 2125 2126 /* disable Rx */ 2127 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2128 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2129 2130 /* reset ASIC */ 2131 rum_write(sc, RT2573_MAC_CSR1, 3); 2132 rum_write(sc, RT2573_MAC_CSR1, 0); 2133 } 2134 2135 static void 2136 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2137 { 2138 struct usb_device_request req; 2139 uint16_t reg = RT2573_MCU_CODE_BASE; 2140 usb_error_t err; 2141 2142 /* copy firmware image into NIC */ 2143 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2144 err = rum_write(sc, reg, UGETDW(ucode)); 2145 if (err) { 2146 /* firmware already loaded ? */ 2147 device_printf(sc->sc_dev, "Firmware load " 2148 "failure! (ignored)\n"); 2149 break; 2150 } 2151 } 2152 2153 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2154 req.bRequest = RT2573_MCU_CNTL; 2155 USETW(req.wValue, RT2573_MCU_RUN); 2156 USETW(req.wIndex, 0); 2157 USETW(req.wLength, 0); 2158 2159 err = rum_do_request(sc, &req, NULL); 2160 if (err != 0) { 2161 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2162 usbd_errstr(err)); 2163 } 2164 2165 /* give the chip some time to boot */ 2166 rum_pause(sc, hz / 8); 2167 } 2168 2169 static void 2170 rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2171 { 2172 struct ieee80211com *ic = vap->iv_ic; 2173 const struct ieee80211_txparam *tp; 2174 struct rum_tx_desc desc; 2175 struct mbuf *m0; 2176 2177 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2178 return; 2179 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2180 return; 2181 2182 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2183 if (m0 == NULL) 2184 return; 2185 2186 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2187 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2188 m0->m_pkthdr.len, tp->mgmtrate); 2189 2190 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2191 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2192 2193 /* copy beacon header and payload into NIC memory */ 2194 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2195 m0->m_pkthdr.len); 2196 2197 m_freem(m0); 2198 } 2199 2200 static int 2201 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2202 const struct ieee80211_bpf_params *params) 2203 { 2204 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2205 struct rum_softc *sc = ifp->if_softc; 2206 2207 RUM_LOCK(sc); 2208 /* prevent management frames from being sent if we're not ready */ 2209 if (!(ifp->if_flags & IFF_RUNNING)) { 2210 RUM_UNLOCK(sc); 2211 m_freem(m); 2212 ieee80211_free_node(ni); 2213 return ENETDOWN; 2214 } 2215 if (sc->tx_nfree < RUM_TX_MINFREE) { 2216 ifq_set_oactive(&ifp->if_snd); 2217 RUM_UNLOCK(sc); 2218 m_freem(m); 2219 ieee80211_free_node(ni); 2220 return EIO; 2221 } 2222 2223 ifp->if_opackets++; 2224 2225 if (params == NULL) { 2226 /* 2227 * Legacy path; interpret frame contents to decide 2228 * precisely how to send the frame. 2229 */ 2230 if (rum_tx_mgt(sc, m, ni) != 0) 2231 goto bad; 2232 } else { 2233 /* 2234 * Caller supplied explicit parameters to use in 2235 * sending the frame. 2236 */ 2237 if (rum_tx_raw(sc, m, ni, params) != 0) 2238 goto bad; 2239 } 2240 RUM_UNLOCK(sc); 2241 2242 return 0; 2243 bad: 2244 ifp->if_oerrors++; 2245 RUM_UNLOCK(sc); 2246 ieee80211_free_node(ni); 2247 return EIO; 2248 } 2249 2250 static void 2251 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2252 { 2253 struct ieee80211vap *vap = ni->ni_vap; 2254 struct rum_vap *rvp = RUM_VAP(vap); 2255 2256 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2257 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2258 2259 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2260 } 2261 2262 static void 2263 rum_ratectl_timeout(void *arg) 2264 { 2265 struct rum_vap *rvp = arg; 2266 struct ieee80211vap *vap = &rvp->vap; 2267 struct ieee80211com *ic = vap->iv_ic; 2268 2269 ieee80211_runtask(ic, &rvp->ratectl_task); 2270 } 2271 2272 static void 2273 rum_ratectl_task(void *arg, int pending) 2274 { 2275 struct rum_vap *rvp = arg; 2276 struct ieee80211vap *vap = &rvp->vap; 2277 struct ieee80211com *ic = vap->iv_ic; 2278 struct ifnet *ifp = ic->ic_ifp; 2279 struct rum_softc *sc = ifp->if_softc; 2280 struct ieee80211_node *ni; 2281 int ok, fail; 2282 int sum, retrycnt; 2283 2284 RUM_LOCK(sc); 2285 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2286 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2287 2288 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2289 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2290 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2291 sum = ok+fail; 2292 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2293 2294 ni = ieee80211_ref_node(vap->iv_bss); 2295 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2296 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2297 ieee80211_free_node(ni); 2298 2299 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2300 2301 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2302 RUM_UNLOCK(sc); 2303 } 2304 2305 static void 2306 rum_scan_start(struct ieee80211com *ic) 2307 { 2308 struct ifnet *ifp = ic->ic_ifp; 2309 struct rum_softc *sc = ifp->if_softc; 2310 uint32_t tmp; 2311 2312 RUM_LOCK(sc); 2313 /* abort TSF synchronization */ 2314 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2315 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2316 rum_set_bssid(sc, ifp->if_broadcastaddr); 2317 RUM_UNLOCK(sc); 2318 2319 } 2320 2321 static void 2322 rum_scan_end(struct ieee80211com *ic) 2323 { 2324 struct rum_softc *sc = ic->ic_ifp->if_softc; 2325 2326 RUM_LOCK(sc); 2327 rum_enable_tsf_sync(sc); 2328 rum_set_bssid(sc, sc->sc_bssid); 2329 RUM_UNLOCK(sc); 2330 2331 } 2332 2333 static void 2334 rum_set_channel(struct ieee80211com *ic) 2335 { 2336 struct rum_softc *sc = ic->ic_ifp->if_softc; 2337 2338 RUM_LOCK(sc); 2339 rum_set_chan(sc, ic->ic_curchan); 2340 RUM_UNLOCK(sc); 2341 } 2342 2343 static int 2344 rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2345 { 2346 struct ifnet *ifp = sc->sc_ifp; 2347 struct ieee80211com *ic = ifp->if_l2com; 2348 int lna, agc, rssi; 2349 2350 lna = (raw >> 5) & 0x3; 2351 agc = raw & 0x1f; 2352 2353 if (lna == 0) { 2354 /* 2355 * No RSSI mapping 2356 * 2357 * NB: Since RSSI is relative to noise floor, -1 is 2358 * adequate for caller to know error happened. 2359 */ 2360 return -1; 2361 } 2362 2363 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2364 2365 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2366 rssi += sc->rssi_2ghz_corr; 2367 2368 if (lna == 1) 2369 rssi -= 64; 2370 else if (lna == 2) 2371 rssi -= 74; 2372 else if (lna == 3) 2373 rssi -= 90; 2374 } else { 2375 rssi += sc->rssi_5ghz_corr; 2376 2377 if (!sc->ext_5ghz_lna && lna != 1) 2378 rssi += 4; 2379 2380 if (lna == 1) 2381 rssi -= 64; 2382 else if (lna == 2) 2383 rssi -= 86; 2384 else if (lna == 3) 2385 rssi -= 100; 2386 } 2387 return rssi; 2388 } 2389 2390 static int 2391 rum_pause(struct rum_softc *sc, int timeout) 2392 { 2393 zsleep(sc, &wlan_global_serializer, 0, "rumpause", timeout + 1); 2394 return (0); 2395 } 2396 2397 static device_method_t rum_methods[] = { 2398 /* Device interface */ 2399 DEVMETHOD(device_probe, rum_match), 2400 DEVMETHOD(device_attach, rum_attach), 2401 DEVMETHOD(device_detach, rum_detach), 2402 DEVMETHOD_END 2403 }; 2404 2405 static driver_t rum_driver = { 2406 .name = "rum", 2407 .methods = rum_methods, 2408 .size = sizeof(struct rum_softc), 2409 }; 2410 2411 static devclass_t rum_devclass; 2412 2413 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2414 MODULE_DEPEND(rum, wlan, 1, 1, 1); 2415 MODULE_DEPEND(rum, usb, 1, 1, 1); 2416 MODULE_VERSION(rum, 1); 2417