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 <bus/u4b/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 if (rvp == NULL) 609 return NULL; 610 vap = &rvp->vap; 611 /* enable s/w bmiss handling for sta mode */ 612 ieee80211_vap_setup(ic, vap, name, unit, opmode, 613 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 614 615 /* override state transition machine */ 616 rvp->newstate = vap->iv_newstate; 617 vap->iv_newstate = rum_newstate; 618 619 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_lock, 0); 620 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 621 ieee80211_ratectl_init(vap); 622 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 623 /* complete setup */ 624 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 625 ic->ic_opmode = opmode; 626 return vap; 627 } 628 629 static void 630 rum_vap_delete(struct ieee80211vap *vap) 631 { 632 struct rum_vap *rvp = RUM_VAP(vap); 633 struct ieee80211com *ic = vap->iv_ic; 634 635 usb_callout_drain(&rvp->ratectl_ch); 636 ieee80211_draintask(ic, &rvp->ratectl_task); 637 ieee80211_ratectl_deinit(vap); 638 ieee80211_vap_detach(vap); 639 kfree(rvp, M_80211_VAP); 640 } 641 642 static void 643 rum_tx_free(struct rum_tx_data *data, int txerr) 644 { 645 struct rum_softc *sc = data->sc; 646 647 if (data->m != NULL) { 648 if (data->m->m_flags & M_TXCB) 649 ieee80211_process_callback(data->ni, data->m, 650 txerr ? ETIMEDOUT : 0); 651 m_freem(data->m); 652 data->m = NULL; 653 654 ieee80211_free_node(data->ni); 655 data->ni = NULL; 656 } 657 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 658 sc->tx_nfree++; 659 } 660 661 static void 662 rum_setup_tx_list(struct rum_softc *sc) 663 { 664 struct rum_tx_data *data; 665 int i; 666 667 sc->tx_nfree = 0; 668 STAILQ_INIT(&sc->tx_q); 669 STAILQ_INIT(&sc->tx_free); 670 671 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 672 data = &sc->tx_data[i]; 673 674 data->sc = sc; 675 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 676 sc->tx_nfree++; 677 } 678 } 679 680 static void 681 rum_unsetup_tx_list(struct rum_softc *sc) 682 { 683 struct rum_tx_data *data; 684 int i; 685 686 /* make sure any subsequent use of the queues will fail */ 687 sc->tx_nfree = 0; 688 STAILQ_INIT(&sc->tx_q); 689 STAILQ_INIT(&sc->tx_free); 690 691 /* free up all node references and mbufs */ 692 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 693 data = &sc->tx_data[i]; 694 695 if (data->m != NULL) { 696 m_freem(data->m); 697 data->m = NULL; 698 } 699 if (data->ni != NULL) { 700 ieee80211_free_node(data->ni); 701 data->ni = NULL; 702 } 703 } 704 } 705 706 static void 707 rum_newassoc(struct ieee80211_node *ni, int isnew) 708 { 709 ieee80211_ratectl_node_deinit(ni); 710 ieee80211_ratectl_node_init(ni); 711 } 712 713 static int 714 rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 715 { 716 struct rum_vap *rvp = RUM_VAP(vap); 717 struct ieee80211com *ic = vap->iv_ic; 718 struct rum_softc *sc = ic->ic_ifp->if_softc; 719 const struct ieee80211_txparam *tp; 720 enum ieee80211_state ostate; 721 struct ieee80211_node *ni; 722 uint32_t tmp; 723 724 ostate = vap->iv_state; 725 DPRINTF("%s -> %s\n", 726 ieee80211_state_name[ostate], 727 ieee80211_state_name[nstate]); 728 729 #if 0 /* XXX swildner: needed? */ 730 IEEE80211_UNLOCK(ic); 731 #endif 732 RUM_LOCK(sc); 733 usb_callout_stop(&rvp->ratectl_ch); 734 735 switch (nstate) { 736 case IEEE80211_S_INIT: 737 if (ostate == IEEE80211_S_RUN) { 738 /* abort TSF synchronization */ 739 tmp = rum_read(sc, RT2573_TXRX_CSR9); 740 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 741 } 742 break; 743 744 case IEEE80211_S_RUN: 745 ni = ieee80211_ref_node(vap->iv_bss); 746 747 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 748 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 749 RUM_UNLOCK(sc); 750 #if 0 /* XXX swildner: needed? */ 751 IEEE80211_LOCK(ic); 752 #endif 753 ieee80211_free_node(ni); 754 return (-1); 755 } 756 rum_update_slot(ic->ic_ifp); 757 rum_enable_mrr(sc); 758 rum_set_txpreamble(sc); 759 rum_set_basicrates(sc); 760 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 761 rum_set_bssid(sc, sc->sc_bssid); 762 } 763 764 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 765 vap->iv_opmode == IEEE80211_M_IBSS) 766 rum_prepare_beacon(sc, vap); 767 768 if (vap->iv_opmode != IEEE80211_M_MONITOR) 769 rum_enable_tsf_sync(sc); 770 else 771 rum_enable_tsf(sc); 772 773 /* enable automatic rate adaptation */ 774 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 775 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 776 rum_ratectl_start(sc, ni); 777 ieee80211_free_node(ni); 778 break; 779 default: 780 break; 781 } 782 RUM_UNLOCK(sc); 783 #if 0 /* XXX swildner: needed? */ 784 IEEE80211_LOCK(ic); 785 #endif 786 return (rvp->newstate(vap, nstate, arg)); 787 } 788 789 static void 790 rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 791 { 792 struct rum_softc *sc = usbd_xfer_softc(xfer); 793 struct ifnet *ifp = sc->sc_ifp; 794 struct ieee80211vap *vap; 795 struct rum_tx_data *data; 796 struct mbuf *m; 797 struct usb_page_cache *pc; 798 unsigned int len; 799 int actlen, sumlen; 800 801 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 802 803 switch (USB_GET_STATE(xfer)) { 804 case USB_ST_TRANSFERRED: 805 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 806 807 /* free resources */ 808 data = usbd_xfer_get_priv(xfer); 809 rum_tx_free(data, 0); 810 usbd_xfer_set_priv(xfer, NULL); 811 812 ifp->if_opackets++; 813 ifq_clr_oactive(&ifp->if_snd); 814 815 /* FALLTHROUGH */ 816 case USB_ST_SETUP: 817 tr_setup: 818 data = STAILQ_FIRST(&sc->tx_q); 819 if (data) { 820 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 821 m = data->m; 822 823 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 824 DPRINTFN(0, "data overflow, %u bytes\n", 825 m->m_pkthdr.len); 826 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 827 } 828 pc = usbd_xfer_get_frame(xfer, 0); 829 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 830 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 831 m->m_pkthdr.len); 832 833 vap = data->ni->ni_vap; 834 if (ieee80211_radiotap_active_vap(vap)) { 835 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 836 837 tap->wt_flags = 0; 838 tap->wt_rate = data->rate; 839 tap->wt_antenna = sc->tx_ant; 840 841 ieee80211_radiotap_tx(vap, m); 842 } 843 844 /* align end on a 4-bytes boundary */ 845 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 846 if ((len % 64) == 0) 847 len += 4; 848 849 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 850 m->m_pkthdr.len, len); 851 852 usbd_xfer_set_frame_len(xfer, 0, len); 853 usbd_xfer_set_priv(xfer, data); 854 855 usbd_transfer_submit(xfer); 856 } 857 rum_start_locked(ifp); 858 break; 859 860 default: /* Error */ 861 DPRINTFN(11, "transfer error, %s\n", 862 usbd_errstr(error)); 863 864 ifp->if_oerrors++; 865 data = usbd_xfer_get_priv(xfer); 866 if (data != NULL) { 867 rum_tx_free(data, error); 868 usbd_xfer_set_priv(xfer, NULL); 869 } 870 871 if (error != USB_ERR_CANCELLED) { 872 if (error == USB_ERR_TIMEOUT) 873 device_printf(sc->sc_dev, "device timeout\n"); 874 875 /* 876 * Try to clear stall first, also if other 877 * errors occur, hence clearing stall 878 * introduces a 50 ms delay: 879 */ 880 usbd_xfer_set_stall(xfer); 881 goto tr_setup; 882 } 883 break; 884 } 885 } 886 887 static void 888 rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 889 { 890 struct rum_softc *sc = usbd_xfer_softc(xfer); 891 struct ifnet *ifp = sc->sc_ifp; 892 struct ieee80211com *ic = ifp->if_l2com; 893 struct ieee80211_node *ni; 894 struct mbuf *m = NULL; 895 struct usb_page_cache *pc; 896 uint32_t flags; 897 uint8_t rssi = 0; 898 int len; 899 900 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 901 902 switch (USB_GET_STATE(xfer)) { 903 case USB_ST_TRANSFERRED: 904 905 DPRINTFN(15, "rx done, actlen=%d\n", len); 906 907 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 908 DPRINTF("%s: xfer too short %d\n", 909 device_get_nameunit(sc->sc_dev), len); 910 ifp->if_ierrors++; 911 goto tr_setup; 912 } 913 914 len -= RT2573_RX_DESC_SIZE; 915 pc = usbd_xfer_get_frame(xfer, 0); 916 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 917 918 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 919 flags = le32toh(sc->sc_rx_desc.flags); 920 if (flags & RT2573_RX_CRC_ERROR) { 921 /* 922 * This should not happen since we did not 923 * request to receive those frames when we 924 * filled RUM_TXRX_CSR2: 925 */ 926 DPRINTFN(5, "PHY or CRC error\n"); 927 ifp->if_ierrors++; 928 goto tr_setup; 929 } 930 931 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 932 if (m == NULL) { 933 DPRINTF("could not allocate mbuf\n"); 934 ifp->if_ierrors++; 935 goto tr_setup; 936 } 937 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 938 mtod(m, uint8_t *), len); 939 940 /* finalize mbuf */ 941 m->m_pkthdr.rcvif = ifp; 942 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 943 944 if (ieee80211_radiotap_active(ic)) { 945 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 946 947 /* XXX read tsf */ 948 tap->wr_flags = 0; 949 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 950 (flags & RT2573_RX_OFDM) ? 951 IEEE80211_T_OFDM : IEEE80211_T_CCK); 952 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 953 tap->wr_antnoise = RT2573_NOISE_FLOOR; 954 tap->wr_antenna = sc->rx_ant; 955 } 956 /* FALLTHROUGH */ 957 case USB_ST_SETUP: 958 tr_setup: 959 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 960 usbd_transfer_submit(xfer); 961 962 /* 963 * At the end of a USB callback it is always safe to unlock 964 * the private mutex of a device! That is why we do the 965 * "ieee80211_input" here, and not some lines up! 966 */ 967 RUM_UNLOCK(sc); 968 if (m) { 969 ni = ieee80211_find_rxnode(ic, 970 mtod(m, struct ieee80211_frame_min *)); 971 if (ni != NULL) { 972 (void) ieee80211_input(ni, m, rssi, 973 RT2573_NOISE_FLOOR); 974 ieee80211_free_node(ni); 975 } else 976 (void) ieee80211_input_all(ic, m, rssi, 977 RT2573_NOISE_FLOOR); 978 } 979 if (!ifq_is_oactive(&ifp->if_snd) && 980 !ifq_is_empty(&ifp->if_snd)) 981 rum_start_locked(ifp); 982 RUM_LOCK(sc); 983 return; 984 985 default: /* Error */ 986 if (error != USB_ERR_CANCELLED) { 987 /* try to clear stall first */ 988 usbd_xfer_set_stall(xfer); 989 goto tr_setup; 990 } 991 return; 992 } 993 } 994 995 static uint8_t 996 rum_plcp_signal(int rate) 997 { 998 switch (rate) { 999 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1000 case 12: return 0xb; 1001 case 18: return 0xf; 1002 case 24: return 0xa; 1003 case 36: return 0xe; 1004 case 48: return 0x9; 1005 case 72: return 0xd; 1006 case 96: return 0x8; 1007 case 108: return 0xc; 1008 1009 /* CCK rates (NB: not IEEE std, device-specific) */ 1010 case 2: return 0x0; 1011 case 4: return 0x1; 1012 case 11: return 0x2; 1013 case 22: return 0x3; 1014 } 1015 return 0xff; /* XXX unsupported/unknown rate */ 1016 } 1017 1018 static void 1019 rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1020 uint32_t flags, uint16_t xflags, int len, int rate) 1021 { 1022 struct ifnet *ifp = sc->sc_ifp; 1023 struct ieee80211com *ic = ifp->if_l2com; 1024 uint16_t plcp_length; 1025 int remainder; 1026 1027 desc->flags = htole32(flags); 1028 desc->flags |= htole32(RT2573_TX_VALID); 1029 desc->flags |= htole32(len << 16); 1030 1031 desc->xflags = htole16(xflags); 1032 1033 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1034 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1035 1036 /* setup PLCP fields */ 1037 desc->plcp_signal = rum_plcp_signal(rate); 1038 desc->plcp_service = 4; 1039 1040 len += IEEE80211_CRC_LEN; 1041 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1042 desc->flags |= htole32(RT2573_TX_OFDM); 1043 1044 plcp_length = len & 0xfff; 1045 desc->plcp_length_hi = plcp_length >> 6; 1046 desc->plcp_length_lo = plcp_length & 0x3f; 1047 } else { 1048 plcp_length = (16 * len + rate - 1) / rate; 1049 if (rate == 22) { 1050 remainder = (16 * len) % 22; 1051 if (remainder != 0 && remainder < 7) 1052 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1053 } 1054 desc->plcp_length_hi = plcp_length >> 8; 1055 desc->plcp_length_lo = plcp_length & 0xff; 1056 1057 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1058 desc->plcp_signal |= 0x08; 1059 } 1060 } 1061 1062 static int 1063 rum_sendprot(struct rum_softc *sc, 1064 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1065 { 1066 struct ieee80211com *ic = ni->ni_ic; 1067 const struct ieee80211_frame *wh; 1068 struct rum_tx_data *data; 1069 struct mbuf *mprot; 1070 int protrate, ackrate, pktlen, flags, isshort; 1071 uint16_t dur; 1072 1073 RUM_LOCK_ASSERT(sc, MA_OWNED); 1074 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1075 ("protection %d", prot)); 1076 1077 wh = mtod(m, const struct ieee80211_frame *); 1078 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1079 1080 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1081 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1082 1083 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1084 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1085 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1086 flags = RT2573_TX_MORE_FRAG; 1087 if (prot == IEEE80211_PROT_RTSCTS) { 1088 /* NB: CTS is the same size as an ACK */ 1089 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1090 flags |= RT2573_TX_NEED_ACK; 1091 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1092 } else { 1093 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1094 } 1095 if (mprot == NULL) { 1096 /* XXX stat + msg */ 1097 return (ENOBUFS); 1098 } 1099 data = STAILQ_FIRST(&sc->tx_free); 1100 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1101 sc->tx_nfree--; 1102 1103 data->m = mprot; 1104 data->ni = ieee80211_ref_node(ni); 1105 data->rate = protrate; 1106 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1107 1108 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1109 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1110 1111 return 0; 1112 } 1113 1114 static int 1115 rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1116 { 1117 struct ieee80211vap *vap = ni->ni_vap; 1118 struct ifnet *ifp = sc->sc_ifp; 1119 struct ieee80211com *ic = ifp->if_l2com; 1120 struct rum_tx_data *data; 1121 struct ieee80211_frame *wh; 1122 const struct ieee80211_txparam *tp; 1123 struct ieee80211_key *k; 1124 uint32_t flags = 0; 1125 uint16_t dur; 1126 1127 RUM_LOCK_ASSERT(sc, MA_OWNED); 1128 1129 data = STAILQ_FIRST(&sc->tx_free); 1130 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1131 sc->tx_nfree--; 1132 1133 wh = mtod(m0, struct ieee80211_frame *); 1134 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1135 k = ieee80211_crypto_encap(ni, m0); 1136 if (k == NULL) { 1137 m_freem(m0); 1138 return ENOBUFS; 1139 } 1140 wh = mtod(m0, struct ieee80211_frame *); 1141 } 1142 1143 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1144 1145 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1146 flags |= RT2573_TX_NEED_ACK; 1147 1148 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1149 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1150 *(uint16_t *)wh->i_dur = htole16(dur); 1151 1152 /* tell hardware to add timestamp for probe responses */ 1153 if ((wh->i_fc[0] & 1154 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1155 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1156 flags |= RT2573_TX_TIMESTAMP; 1157 } 1158 1159 data->m = m0; 1160 data->ni = ni; 1161 data->rate = tp->mgmtrate; 1162 1163 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1164 1165 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1166 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1167 1168 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1169 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1170 1171 return (0); 1172 } 1173 1174 static int 1175 rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1176 const struct ieee80211_bpf_params *params) 1177 { 1178 struct ieee80211com *ic = ni->ni_ic; 1179 struct rum_tx_data *data; 1180 uint32_t flags; 1181 int rate, error; 1182 1183 RUM_LOCK_ASSERT(sc, MA_OWNED); 1184 KASSERT(params != NULL, ("no raw xmit params")); 1185 1186 rate = params->ibp_rate0; 1187 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1188 m_freem(m0); 1189 return EINVAL; 1190 } 1191 flags = 0; 1192 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1193 flags |= RT2573_TX_NEED_ACK; 1194 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1195 error = rum_sendprot(sc, m0, ni, 1196 params->ibp_flags & IEEE80211_BPF_RTS ? 1197 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1198 rate); 1199 if (error || sc->tx_nfree == 0) { 1200 m_freem(m0); 1201 return ENOBUFS; 1202 } 1203 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1204 } 1205 1206 data = STAILQ_FIRST(&sc->tx_free); 1207 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1208 sc->tx_nfree--; 1209 1210 data->m = m0; 1211 data->ni = ni; 1212 data->rate = rate; 1213 1214 /* XXX need to setup descriptor ourself */ 1215 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1216 1217 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1218 m0->m_pkthdr.len, rate); 1219 1220 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1221 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1222 1223 return 0; 1224 } 1225 1226 static int 1227 rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1228 { 1229 struct ieee80211vap *vap = ni->ni_vap; 1230 struct ifnet *ifp = sc->sc_ifp; 1231 struct ieee80211com *ic = ifp->if_l2com; 1232 struct rum_tx_data *data; 1233 struct ieee80211_frame *wh; 1234 const struct ieee80211_txparam *tp; 1235 struct ieee80211_key *k; 1236 uint32_t flags = 0; 1237 uint16_t dur; 1238 int error, rate; 1239 1240 #if 0 /* XXX swildner: lock needed? */ 1241 RUM_LOCK_ASSERT(sc, MA_OWNED); 1242 #endif 1243 1244 wh = mtod(m0, struct ieee80211_frame *); 1245 1246 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1247 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1248 rate = tp->mcastrate; 1249 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1250 rate = tp->ucastrate; 1251 else 1252 rate = ni->ni_txrate; 1253 1254 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1255 k = ieee80211_crypto_encap(ni, m0); 1256 if (k == NULL) { 1257 m_freem(m0); 1258 return ENOBUFS; 1259 } 1260 1261 /* packet header may have moved, reset our local pointer */ 1262 wh = mtod(m0, struct ieee80211_frame *); 1263 } 1264 1265 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1266 int prot = IEEE80211_PROT_NONE; 1267 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1268 prot = IEEE80211_PROT_RTSCTS; 1269 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1270 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1271 prot = ic->ic_protmode; 1272 if (prot != IEEE80211_PROT_NONE) { 1273 error = rum_sendprot(sc, m0, ni, prot, rate); 1274 if (error || sc->tx_nfree == 0) { 1275 m_freem(m0); 1276 return ENOBUFS; 1277 } 1278 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1279 } 1280 } 1281 1282 data = STAILQ_FIRST(&sc->tx_free); 1283 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1284 sc->tx_nfree--; 1285 1286 data->m = m0; 1287 data->ni = ni; 1288 data->rate = rate; 1289 1290 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1291 flags |= RT2573_TX_NEED_ACK; 1292 flags |= RT2573_TX_MORE_FRAG; 1293 1294 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1295 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1296 *(uint16_t *)wh->i_dur = htole16(dur); 1297 } 1298 1299 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1300 1301 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1302 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1303 1304 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1305 RUM_LOCK(sc); 1306 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1307 RUM_UNLOCK(sc); 1308 1309 return 0; 1310 } 1311 1312 static void 1313 rum_start_locked(struct ifnet *ifp) 1314 { 1315 struct rum_softc *sc = ifp->if_softc; 1316 struct ieee80211_node *ni; 1317 struct mbuf *m; 1318 1319 if ((ifp->if_flags & IFF_RUNNING) == 0) { 1320 return; 1321 } 1322 for (;;) { 1323 m = ifq_dequeue(&ifp->if_snd); 1324 if (m == NULL) 1325 break; 1326 if (sc->tx_nfree < RUM_TX_MINFREE) { 1327 ifq_prepend(&ifp->if_snd, m); 1328 ifq_set_oactive(&ifp->if_snd); 1329 break; 1330 } 1331 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1332 if (rum_tx_data(sc, m, ni) != 0) { 1333 ieee80211_free_node(ni); 1334 ifp->if_oerrors++; 1335 break; 1336 } 1337 } 1338 } 1339 1340 static void 1341 rum_start(struct ifnet *ifp, struct ifaltq_subque *ifsq) 1342 { 1343 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq); 1344 rum_start_locked(ifp); 1345 } 1346 1347 static int 1348 rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *ucred) 1349 { 1350 struct rum_softc *sc = ifp->if_softc; 1351 struct ieee80211com *ic = ifp->if_l2com; 1352 struct ifreq *ifr = (struct ifreq *) data; 1353 int error; 1354 int startall = 0; 1355 1356 RUM_LOCK(sc); 1357 error = sc->sc_detached ? ENXIO : 0; 1358 RUM_UNLOCK(sc); 1359 if (error) 1360 return (error); 1361 1362 switch (cmd) { 1363 case SIOCSIFFLAGS: 1364 RUM_LOCK(sc); 1365 if (ifp->if_flags & IFF_UP) { 1366 if ((ifp->if_flags & IFF_RUNNING) == 0) { 1367 rum_init_locked(sc); 1368 startall = 1; 1369 } else 1370 rum_setpromisc(sc); 1371 } else { 1372 if (ifp->if_flags & IFF_RUNNING) 1373 rum_stop(sc); 1374 } 1375 RUM_UNLOCK(sc); 1376 if (startall) 1377 ieee80211_start_all(ic); 1378 break; 1379 case SIOCGIFMEDIA: 1380 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1381 break; 1382 case SIOCGIFADDR: 1383 error = ether_ioctl(ifp, cmd, data); 1384 break; 1385 default: 1386 error = EINVAL; 1387 break; 1388 } 1389 return error; 1390 } 1391 1392 static void 1393 rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1394 { 1395 struct usb_device_request req; 1396 usb_error_t error; 1397 1398 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1399 req.bRequest = RT2573_READ_EEPROM; 1400 USETW(req.wValue, 0); 1401 USETW(req.wIndex, addr); 1402 USETW(req.wLength, len); 1403 1404 error = rum_do_request(sc, &req, buf); 1405 if (error != 0) { 1406 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1407 usbd_errstr(error)); 1408 } 1409 } 1410 1411 static uint32_t 1412 rum_read(struct rum_softc *sc, uint16_t reg) 1413 { 1414 uint32_t val; 1415 1416 rum_read_multi(sc, reg, &val, sizeof val); 1417 1418 return le32toh(val); 1419 } 1420 1421 static void 1422 rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1423 { 1424 struct usb_device_request req; 1425 usb_error_t error; 1426 1427 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1428 req.bRequest = RT2573_READ_MULTI_MAC; 1429 USETW(req.wValue, 0); 1430 USETW(req.wIndex, reg); 1431 USETW(req.wLength, len); 1432 1433 error = rum_do_request(sc, &req, buf); 1434 if (error != 0) { 1435 device_printf(sc->sc_dev, 1436 "could not multi read MAC register: %s\n", 1437 usbd_errstr(error)); 1438 } 1439 } 1440 1441 static usb_error_t 1442 rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1443 { 1444 uint32_t tmp = htole32(val); 1445 1446 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1447 } 1448 1449 static usb_error_t 1450 rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1451 { 1452 struct usb_device_request req; 1453 usb_error_t error; 1454 size_t offset; 1455 1456 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1457 req.bRequest = RT2573_WRITE_MULTI_MAC; 1458 USETW(req.wValue, 0); 1459 1460 /* write at most 64 bytes at a time */ 1461 for (offset = 0; offset < len; offset += 64) { 1462 USETW(req.wIndex, reg + offset); 1463 USETW(req.wLength, MIN(len - offset, 64)); 1464 1465 error = rum_do_request(sc, &req, (char *)buf + offset); 1466 if (error != 0) { 1467 device_printf(sc->sc_dev, 1468 "could not multi write MAC register: %s\n", 1469 usbd_errstr(error)); 1470 return (error); 1471 } 1472 } 1473 1474 return (USB_ERR_NORMAL_COMPLETION); 1475 } 1476 1477 static void 1478 rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1479 { 1480 uint32_t tmp; 1481 int ntries; 1482 1483 DPRINTFN(2, "reg=0x%08x\n", reg); 1484 1485 for (ntries = 0; ntries < 100; ntries++) { 1486 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1487 break; 1488 if (rum_pause(sc, hz / 100)) 1489 break; 1490 } 1491 if (ntries == 100) { 1492 device_printf(sc->sc_dev, "could not write to BBP\n"); 1493 return; 1494 } 1495 1496 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1497 rum_write(sc, RT2573_PHY_CSR3, tmp); 1498 } 1499 1500 static uint8_t 1501 rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1502 { 1503 uint32_t val; 1504 int ntries; 1505 1506 DPRINTFN(2, "reg=0x%08x\n", reg); 1507 1508 for (ntries = 0; ntries < 100; ntries++) { 1509 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1510 break; 1511 if (rum_pause(sc, hz / 100)) 1512 break; 1513 } 1514 if (ntries == 100) { 1515 device_printf(sc->sc_dev, "could not read BBP\n"); 1516 return 0; 1517 } 1518 1519 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1520 rum_write(sc, RT2573_PHY_CSR3, val); 1521 1522 for (ntries = 0; ntries < 100; ntries++) { 1523 val = rum_read(sc, RT2573_PHY_CSR3); 1524 if (!(val & RT2573_BBP_BUSY)) 1525 return val & 0xff; 1526 if (rum_pause(sc, hz / 100)) 1527 break; 1528 } 1529 1530 device_printf(sc->sc_dev, "could not read BBP\n"); 1531 return 0; 1532 } 1533 1534 static void 1535 rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1536 { 1537 uint32_t tmp; 1538 int ntries; 1539 1540 for (ntries = 0; ntries < 100; ntries++) { 1541 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1542 break; 1543 if (rum_pause(sc, hz / 100)) 1544 break; 1545 } 1546 if (ntries == 100) { 1547 device_printf(sc->sc_dev, "could not write to RF\n"); 1548 return; 1549 } 1550 1551 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1552 (reg & 3); 1553 rum_write(sc, RT2573_PHY_CSR4, tmp); 1554 1555 /* remember last written value in sc */ 1556 sc->rf_regs[reg] = val; 1557 1558 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1559 } 1560 1561 static void 1562 rum_select_antenna(struct rum_softc *sc) 1563 { 1564 uint8_t bbp4, bbp77; 1565 uint32_t tmp; 1566 1567 bbp4 = rum_bbp_read(sc, 4); 1568 bbp77 = rum_bbp_read(sc, 77); 1569 1570 /* TBD */ 1571 1572 /* make sure Rx is disabled before switching antenna */ 1573 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1574 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1575 1576 rum_bbp_write(sc, 4, bbp4); 1577 rum_bbp_write(sc, 77, bbp77); 1578 1579 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1580 } 1581 1582 /* 1583 * Enable multi-rate retries for frames sent at OFDM rates. 1584 * In 802.11b/g mode, allow fallback to CCK rates. 1585 */ 1586 static void 1587 rum_enable_mrr(struct rum_softc *sc) 1588 { 1589 struct ifnet *ifp = sc->sc_ifp; 1590 struct ieee80211com *ic = ifp->if_l2com; 1591 uint32_t tmp; 1592 1593 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1594 1595 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1596 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1597 tmp |= RT2573_MRR_CCK_FALLBACK; 1598 tmp |= RT2573_MRR_ENABLED; 1599 1600 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1601 } 1602 1603 static void 1604 rum_set_txpreamble(struct rum_softc *sc) 1605 { 1606 struct ifnet *ifp = sc->sc_ifp; 1607 struct ieee80211com *ic = ifp->if_l2com; 1608 uint32_t tmp; 1609 1610 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1611 1612 tmp &= ~RT2573_SHORT_PREAMBLE; 1613 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1614 tmp |= RT2573_SHORT_PREAMBLE; 1615 1616 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1617 } 1618 1619 static void 1620 rum_set_basicrates(struct rum_softc *sc) 1621 { 1622 struct ifnet *ifp = sc->sc_ifp; 1623 struct ieee80211com *ic = ifp->if_l2com; 1624 1625 /* update basic rate set */ 1626 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1627 /* 11b basic rates: 1, 2Mbps */ 1628 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1629 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1630 /* 11a basic rates: 6, 12, 24Mbps */ 1631 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1632 } else { 1633 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1634 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1635 } 1636 } 1637 1638 /* 1639 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1640 * driver. 1641 */ 1642 static void 1643 rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1644 { 1645 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1646 uint32_t tmp; 1647 1648 /* update all BBP registers that depend on the band */ 1649 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1650 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1651 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1652 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1653 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1654 } 1655 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1656 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1657 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1658 } 1659 1660 sc->bbp17 = bbp17; 1661 rum_bbp_write(sc, 17, bbp17); 1662 rum_bbp_write(sc, 96, bbp96); 1663 rum_bbp_write(sc, 104, bbp104); 1664 1665 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1666 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1667 rum_bbp_write(sc, 75, 0x80); 1668 rum_bbp_write(sc, 86, 0x80); 1669 rum_bbp_write(sc, 88, 0x80); 1670 } 1671 1672 rum_bbp_write(sc, 35, bbp35); 1673 rum_bbp_write(sc, 97, bbp97); 1674 rum_bbp_write(sc, 98, bbp98); 1675 1676 tmp = rum_read(sc, RT2573_PHY_CSR0); 1677 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1678 if (IEEE80211_IS_CHAN_2GHZ(c)) 1679 tmp |= RT2573_PA_PE_2GHZ; 1680 else 1681 tmp |= RT2573_PA_PE_5GHZ; 1682 rum_write(sc, RT2573_PHY_CSR0, tmp); 1683 } 1684 1685 static void 1686 rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1687 { 1688 struct ifnet *ifp = sc->sc_ifp; 1689 struct ieee80211com *ic = ifp->if_l2com; 1690 const struct rfprog *rfprog; 1691 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1692 int8_t power; 1693 int i, chan; 1694 1695 chan = ieee80211_chan2ieee(ic, c); 1696 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1697 return; 1698 1699 /* select the appropriate RF settings based on what EEPROM says */ 1700 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1701 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1702 1703 /* find the settings for this channel (we know it exists) */ 1704 for (i = 0; rfprog[i].chan != chan; i++); 1705 1706 power = sc->txpow[i]; 1707 if (power < 0) { 1708 bbp94 += power; 1709 power = 0; 1710 } else if (power > 31) { 1711 bbp94 += power - 31; 1712 power = 31; 1713 } 1714 1715 /* 1716 * If we are switching from the 2GHz band to the 5GHz band or 1717 * vice-versa, BBP registers need to be reprogrammed. 1718 */ 1719 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1720 rum_select_band(sc, c); 1721 rum_select_antenna(sc); 1722 } 1723 ic->ic_curchan = c; 1724 1725 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1726 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1727 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1728 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1729 1730 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1731 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1732 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1733 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1734 1735 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1736 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1737 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1738 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1739 1740 rum_pause(sc, hz / 100); 1741 1742 /* enable smart mode for MIMO-capable RFs */ 1743 bbp3 = rum_bbp_read(sc, 3); 1744 1745 bbp3 &= ~RT2573_SMART_MODE; 1746 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1747 bbp3 |= RT2573_SMART_MODE; 1748 1749 rum_bbp_write(sc, 3, bbp3); 1750 1751 if (bbp94 != RT2573_BBPR94_DEFAULT) 1752 rum_bbp_write(sc, 94, bbp94); 1753 1754 /* give the chip some extra time to do the switchover */ 1755 rum_pause(sc, hz / 100); 1756 } 1757 1758 /* 1759 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1760 * and HostAP operating modes. 1761 */ 1762 static void 1763 rum_enable_tsf_sync(struct rum_softc *sc) 1764 { 1765 struct ifnet *ifp = sc->sc_ifp; 1766 struct ieee80211com *ic = ifp->if_l2com; 1767 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1768 uint32_t tmp; 1769 1770 if (vap->iv_opmode != IEEE80211_M_STA) { 1771 /* 1772 * Change default 16ms TBTT adjustment to 8ms. 1773 * Must be done before enabling beacon generation. 1774 */ 1775 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1776 } 1777 1778 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1779 1780 /* set beacon interval (in 1/16ms unit) */ 1781 tmp |= vap->iv_bss->ni_intval * 16; 1782 1783 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1784 if (vap->iv_opmode == IEEE80211_M_STA) 1785 tmp |= RT2573_TSF_MODE(1); 1786 else 1787 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1788 1789 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1790 } 1791 1792 static void 1793 rum_enable_tsf(struct rum_softc *sc) 1794 { 1795 rum_write(sc, RT2573_TXRX_CSR9, 1796 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1797 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1798 } 1799 1800 static void 1801 rum_update_slot(struct ifnet *ifp) 1802 { 1803 struct rum_softc *sc = ifp->if_softc; 1804 struct ieee80211com *ic = ifp->if_l2com; 1805 uint8_t slottime; 1806 uint32_t tmp; 1807 1808 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1809 1810 tmp = rum_read(sc, RT2573_MAC_CSR9); 1811 tmp = (tmp & ~0xff) | slottime; 1812 rum_write(sc, RT2573_MAC_CSR9, tmp); 1813 1814 DPRINTF("setting slot time to %uus\n", slottime); 1815 } 1816 1817 static void 1818 rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1819 { 1820 uint32_t tmp; 1821 1822 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1823 rum_write(sc, RT2573_MAC_CSR4, tmp); 1824 1825 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1826 rum_write(sc, RT2573_MAC_CSR5, tmp); 1827 } 1828 1829 static void 1830 rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1831 { 1832 uint32_t tmp; 1833 1834 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1835 rum_write(sc, RT2573_MAC_CSR2, tmp); 1836 1837 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1838 rum_write(sc, RT2573_MAC_CSR3, tmp); 1839 } 1840 1841 static void 1842 rum_setpromisc(struct rum_softc *sc) 1843 { 1844 struct ifnet *ifp = sc->sc_ifp; 1845 uint32_t tmp; 1846 1847 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1848 1849 tmp &= ~RT2573_DROP_NOT_TO_ME; 1850 if (!(ifp->if_flags & IFF_PROMISC)) 1851 tmp |= RT2573_DROP_NOT_TO_ME; 1852 1853 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1854 1855 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1856 "entering" : "leaving"); 1857 } 1858 1859 static void 1860 rum_update_promisc(struct ifnet *ifp) 1861 { 1862 struct rum_softc *sc = ifp->if_softc; 1863 1864 if ((ifp->if_flags & IFF_RUNNING) == 0) 1865 return; 1866 1867 RUM_LOCK(sc); 1868 rum_setpromisc(sc); 1869 RUM_UNLOCK(sc); 1870 } 1871 1872 static void 1873 rum_update_mcast(struct ifnet *ifp) 1874 { 1875 static int warning_printed; 1876 1877 if (warning_printed == 0) { 1878 if_printf(ifp, "need to implement %s\n", __func__); 1879 warning_printed = 1; 1880 } 1881 } 1882 1883 static const char * 1884 rum_get_rf(int rev) 1885 { 1886 switch (rev) { 1887 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1888 case RT2573_RF_2528: return "RT2528"; 1889 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1890 case RT2573_RF_5226: return "RT5226"; 1891 default: return "unknown"; 1892 } 1893 } 1894 1895 static void 1896 rum_read_eeprom(struct rum_softc *sc) 1897 { 1898 uint16_t val; 1899 #ifdef RUM_DEBUG 1900 int i; 1901 #endif 1902 1903 /* read MAC address */ 1904 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1905 1906 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1907 val = le16toh(val); 1908 sc->rf_rev = (val >> 11) & 0x1f; 1909 sc->hw_radio = (val >> 10) & 0x1; 1910 sc->rx_ant = (val >> 4) & 0x3; 1911 sc->tx_ant = (val >> 2) & 0x3; 1912 sc->nb_ant = val & 0x3; 1913 1914 DPRINTF("RF revision=%d\n", sc->rf_rev); 1915 1916 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1917 val = le16toh(val); 1918 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1919 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1920 1921 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1922 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1923 1924 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1925 val = le16toh(val); 1926 if ((val & 0xff) != 0xff) 1927 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1928 1929 /* Only [-10, 10] is valid */ 1930 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1931 sc->rssi_2ghz_corr = 0; 1932 1933 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1934 val = le16toh(val); 1935 if ((val & 0xff) != 0xff) 1936 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1937 1938 /* Only [-10, 10] is valid */ 1939 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1940 sc->rssi_5ghz_corr = 0; 1941 1942 if (sc->ext_2ghz_lna) 1943 sc->rssi_2ghz_corr -= 14; 1944 if (sc->ext_5ghz_lna) 1945 sc->rssi_5ghz_corr -= 14; 1946 1947 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1948 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1949 1950 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1951 val = le16toh(val); 1952 if ((val & 0xff) != 0xff) 1953 sc->rffreq = val & 0xff; 1954 1955 DPRINTF("RF freq=%d\n", sc->rffreq); 1956 1957 /* read Tx power for all a/b/g channels */ 1958 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1959 /* XXX default Tx power for 802.11a channels */ 1960 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1961 #ifdef RUM_DEBUG 1962 for (i = 0; i < 14; i++) 1963 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1964 #endif 1965 1966 /* read default values for BBP registers */ 1967 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1968 #ifdef RUM_DEBUG 1969 for (i = 0; i < 14; i++) { 1970 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1971 continue; 1972 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1973 sc->bbp_prom[i].val); 1974 } 1975 #endif 1976 } 1977 1978 static int 1979 rum_bbp_init(struct rum_softc *sc) 1980 { 1981 int i, ntries; 1982 1983 /* wait for BBP to be ready */ 1984 for (ntries = 0; ntries < 100; ntries++) { 1985 const uint8_t val = rum_bbp_read(sc, 0); 1986 if (val != 0 && val != 0xff) 1987 break; 1988 if (rum_pause(sc, hz / 100)) 1989 break; 1990 } 1991 if (ntries == 100) { 1992 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1993 return EIO; 1994 } 1995 1996 /* initialize BBP registers to default values */ 1997 for (i = 0; i < N(rum_def_bbp); i++) 1998 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1999 2000 /* write vendor-specific BBP values (from EEPROM) */ 2001 for (i = 0; i < 16; i++) { 2002 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2003 continue; 2004 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2005 } 2006 2007 return 0; 2008 } 2009 2010 static void 2011 rum_init_locked(struct rum_softc *sc) 2012 { 2013 struct ifnet *ifp = sc->sc_ifp; 2014 struct ieee80211com *ic = ifp->if_l2com; 2015 uint32_t tmp; 2016 usb_error_t error; 2017 int i, ntries; 2018 2019 RUM_LOCK_ASSERT(sc, MA_OWNED); 2020 2021 rum_stop(sc); 2022 2023 /* initialize MAC registers to default values */ 2024 for (i = 0; i < N(rum_def_mac); i++) 2025 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2026 2027 /* set host ready */ 2028 rum_write(sc, RT2573_MAC_CSR1, 3); 2029 rum_write(sc, RT2573_MAC_CSR1, 0); 2030 2031 /* wait for BBP/RF to wakeup */ 2032 for (ntries = 0; ntries < 100; ntries++) { 2033 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2034 break; 2035 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2036 if (rum_pause(sc, hz / 100)) 2037 break; 2038 } 2039 if (ntries == 100) { 2040 device_printf(sc->sc_dev, 2041 "timeout waiting for BBP/RF to wakeup\n"); 2042 goto fail; 2043 } 2044 2045 if ((error = rum_bbp_init(sc)) != 0) 2046 goto fail; 2047 2048 /* select default channel */ 2049 rum_select_band(sc, ic->ic_curchan); 2050 rum_select_antenna(sc); 2051 rum_set_chan(sc, ic->ic_curchan); 2052 2053 /* clear STA registers */ 2054 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2055 2056 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2057 2058 /* initialize ASIC */ 2059 rum_write(sc, RT2573_MAC_CSR1, 4); 2060 2061 /* 2062 * Allocate Tx and Rx xfer queues. 2063 */ 2064 rum_setup_tx_list(sc); 2065 2066 /* update Rx filter */ 2067 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2068 2069 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2070 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2071 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2072 RT2573_DROP_ACKCTS; 2073 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2074 tmp |= RT2573_DROP_TODS; 2075 if (!(ifp->if_flags & IFF_PROMISC)) 2076 tmp |= RT2573_DROP_NOT_TO_ME; 2077 } 2078 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2079 2080 ifq_clr_oactive(&ifp->if_snd); 2081 ifp->if_flags |= IFF_RUNNING; 2082 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2083 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2084 return; 2085 2086 fail: rum_stop(sc); 2087 #undef N 2088 } 2089 2090 static void 2091 rum_init(void *priv) 2092 { 2093 struct rum_softc *sc = priv; 2094 struct ifnet *ifp = sc->sc_ifp; 2095 struct ieee80211com *ic = ifp->if_l2com; 2096 2097 RUM_LOCK(sc); 2098 rum_init_locked(sc); 2099 RUM_UNLOCK(sc); 2100 2101 if (ifp->if_flags & IFF_RUNNING) 2102 ieee80211_start_all(ic); /* start all vap's */ 2103 } 2104 2105 static void 2106 rum_stop(struct rum_softc *sc) 2107 { 2108 struct ifnet *ifp = sc->sc_ifp; 2109 uint32_t tmp; 2110 2111 RUM_LOCK_ASSERT(sc, MA_OWNED); 2112 2113 ifp->if_flags &= ~IFF_RUNNING; 2114 ifq_clr_oactive(&ifp->if_snd); 2115 2116 RUM_UNLOCK(sc); 2117 2118 /* 2119 * Drain the USB transfers, if not already drained: 2120 */ 2121 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2122 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2123 2124 RUM_LOCK(sc); 2125 2126 rum_unsetup_tx_list(sc); 2127 2128 /* disable Rx */ 2129 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2130 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2131 2132 /* reset ASIC */ 2133 rum_write(sc, RT2573_MAC_CSR1, 3); 2134 rum_write(sc, RT2573_MAC_CSR1, 0); 2135 } 2136 2137 static void 2138 rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2139 { 2140 struct usb_device_request req; 2141 uint16_t reg = RT2573_MCU_CODE_BASE; 2142 usb_error_t err; 2143 2144 /* copy firmware image into NIC */ 2145 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2146 err = rum_write(sc, reg, UGETDW(ucode)); 2147 if (err) { 2148 /* firmware already loaded ? */ 2149 device_printf(sc->sc_dev, "Firmware load " 2150 "failure! (ignored)\n"); 2151 break; 2152 } 2153 } 2154 2155 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2156 req.bRequest = RT2573_MCU_CNTL; 2157 USETW(req.wValue, RT2573_MCU_RUN); 2158 USETW(req.wIndex, 0); 2159 USETW(req.wLength, 0); 2160 2161 err = rum_do_request(sc, &req, NULL); 2162 if (err != 0) { 2163 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2164 usbd_errstr(err)); 2165 } 2166 2167 /* give the chip some time to boot */ 2168 rum_pause(sc, hz / 8); 2169 } 2170 2171 static void 2172 rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2173 { 2174 struct ieee80211com *ic = vap->iv_ic; 2175 const struct ieee80211_txparam *tp; 2176 struct rum_tx_desc desc; 2177 struct mbuf *m0; 2178 2179 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2180 return; 2181 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2182 return; 2183 2184 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2185 if (m0 == NULL) 2186 return; 2187 2188 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2189 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2190 m0->m_pkthdr.len, tp->mgmtrate); 2191 2192 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2193 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2194 2195 /* copy beacon header and payload into NIC memory */ 2196 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2197 m0->m_pkthdr.len); 2198 2199 m_freem(m0); 2200 } 2201 2202 static int 2203 rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2204 const struct ieee80211_bpf_params *params) 2205 { 2206 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2207 struct rum_softc *sc = ifp->if_softc; 2208 2209 RUM_LOCK(sc); 2210 /* prevent management frames from being sent if we're not ready */ 2211 if (!(ifp->if_flags & IFF_RUNNING)) { 2212 RUM_UNLOCK(sc); 2213 m_freem(m); 2214 ieee80211_free_node(ni); 2215 return ENETDOWN; 2216 } 2217 if (sc->tx_nfree < RUM_TX_MINFREE) { 2218 ifq_set_oactive(&ifp->if_snd); 2219 RUM_UNLOCK(sc); 2220 m_freem(m); 2221 ieee80211_free_node(ni); 2222 return EIO; 2223 } 2224 2225 ifp->if_opackets++; 2226 2227 if (params == NULL) { 2228 /* 2229 * Legacy path; interpret frame contents to decide 2230 * precisely how to send the frame. 2231 */ 2232 if (rum_tx_mgt(sc, m, ni) != 0) 2233 goto bad; 2234 } else { 2235 /* 2236 * Caller supplied explicit parameters to use in 2237 * sending the frame. 2238 */ 2239 if (rum_tx_raw(sc, m, ni, params) != 0) 2240 goto bad; 2241 } 2242 RUM_UNLOCK(sc); 2243 2244 return 0; 2245 bad: 2246 ifp->if_oerrors++; 2247 RUM_UNLOCK(sc); 2248 ieee80211_free_node(ni); 2249 return EIO; 2250 } 2251 2252 static void 2253 rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2254 { 2255 struct ieee80211vap *vap = ni->ni_vap; 2256 struct rum_vap *rvp = RUM_VAP(vap); 2257 2258 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2259 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2260 2261 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2262 } 2263 2264 static void 2265 rum_ratectl_timeout(void *arg) 2266 { 2267 struct rum_vap *rvp = arg; 2268 struct ieee80211vap *vap = &rvp->vap; 2269 struct ieee80211com *ic = vap->iv_ic; 2270 2271 ieee80211_runtask(ic, &rvp->ratectl_task); 2272 } 2273 2274 static void 2275 rum_ratectl_task(void *arg, int pending) 2276 { 2277 struct rum_vap *rvp = arg; 2278 struct ieee80211vap *vap = &rvp->vap; 2279 struct ieee80211com *ic = vap->iv_ic; 2280 struct ifnet *ifp = ic->ic_ifp; 2281 struct rum_softc *sc = ifp->if_softc; 2282 struct ieee80211_node *ni; 2283 int ok, fail; 2284 int sum, retrycnt; 2285 2286 RUM_LOCK(sc); 2287 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2288 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2289 2290 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2291 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2292 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2293 sum = ok+fail; 2294 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2295 2296 ni = ieee80211_ref_node(vap->iv_bss); 2297 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2298 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2299 ieee80211_free_node(ni); 2300 2301 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2302 2303 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2304 RUM_UNLOCK(sc); 2305 } 2306 2307 static void 2308 rum_scan_start(struct ieee80211com *ic) 2309 { 2310 struct ifnet *ifp = ic->ic_ifp; 2311 struct rum_softc *sc = ifp->if_softc; 2312 uint32_t tmp; 2313 2314 RUM_LOCK(sc); 2315 /* abort TSF synchronization */ 2316 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2317 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2318 rum_set_bssid(sc, ifp->if_broadcastaddr); 2319 RUM_UNLOCK(sc); 2320 2321 } 2322 2323 static void 2324 rum_scan_end(struct ieee80211com *ic) 2325 { 2326 struct rum_softc *sc = ic->ic_ifp->if_softc; 2327 2328 RUM_LOCK(sc); 2329 rum_enable_tsf_sync(sc); 2330 rum_set_bssid(sc, sc->sc_bssid); 2331 RUM_UNLOCK(sc); 2332 2333 } 2334 2335 static void 2336 rum_set_channel(struct ieee80211com *ic) 2337 { 2338 struct rum_softc *sc = ic->ic_ifp->if_softc; 2339 2340 RUM_LOCK(sc); 2341 rum_set_chan(sc, ic->ic_curchan); 2342 RUM_UNLOCK(sc); 2343 } 2344 2345 static int 2346 rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2347 { 2348 struct ifnet *ifp = sc->sc_ifp; 2349 struct ieee80211com *ic = ifp->if_l2com; 2350 int lna, agc, rssi; 2351 2352 lna = (raw >> 5) & 0x3; 2353 agc = raw & 0x1f; 2354 2355 if (lna == 0) { 2356 /* 2357 * No RSSI mapping 2358 * 2359 * NB: Since RSSI is relative to noise floor, -1 is 2360 * adequate for caller to know error happened. 2361 */ 2362 return -1; 2363 } 2364 2365 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2366 2367 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2368 rssi += sc->rssi_2ghz_corr; 2369 2370 if (lna == 1) 2371 rssi -= 64; 2372 else if (lna == 2) 2373 rssi -= 74; 2374 else if (lna == 3) 2375 rssi -= 90; 2376 } else { 2377 rssi += sc->rssi_5ghz_corr; 2378 2379 if (!sc->ext_5ghz_lna && lna != 1) 2380 rssi += 4; 2381 2382 if (lna == 1) 2383 rssi -= 64; 2384 else if (lna == 2) 2385 rssi -= 86; 2386 else if (lna == 3) 2387 rssi -= 100; 2388 } 2389 return rssi; 2390 } 2391 2392 static int 2393 rum_pause(struct rum_softc *sc, int timeout) 2394 { 2395 zsleep(sc, &wlan_global_serializer, 0, "rumpause", timeout + 1); 2396 return (0); 2397 } 2398 2399 static device_method_t rum_methods[] = { 2400 /* Device interface */ 2401 DEVMETHOD(device_probe, rum_match), 2402 DEVMETHOD(device_attach, rum_attach), 2403 DEVMETHOD(device_detach, rum_detach), 2404 DEVMETHOD_END 2405 }; 2406 2407 static driver_t rum_driver = { 2408 .name = "rum", 2409 .methods = rum_methods, 2410 .size = sizeof(struct rum_softc), 2411 }; 2412 2413 static devclass_t rum_devclass; 2414 2415 DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2416 MODULE_DEPEND(rum, wlan, 1, 1, 1); 2417 MODULE_DEPEND(rum, usb, 1, 1, 1); 2418 MODULE_VERSION(rum, 1); 2419