if_rum.c revision 269127
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 269127 2014-07-26 16:06:01Z hselasky $ */ 2 3/*- 4 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org> 6 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21#include <sys/cdefs.h> 22__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_rum.c 269127 2014-07-26 16:06:01Z hselasky $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include <sys/param.h> 30#include <sys/sockio.h> 31#include <sys/sysctl.h> 32#include <sys/lock.h> 33#include <sys/mutex.h> 34#include <sys/mbuf.h> 35#include <sys/kernel.h> 36#include <sys/socket.h> 37#include <sys/systm.h> 38#include <sys/malloc.h> 39#include <sys/module.h> 40#include <sys/bus.h> 41#include <sys/endian.h> 42#include <sys/kdb.h> 43 44#include <machine/bus.h> 45#include <machine/resource.h> 46#include <sys/rman.h> 47 48#include <net/bpf.h> 49#include <net/if.h> 50#include <net/if_var.h> 51#include <net/if_arp.h> 52#include <net/ethernet.h> 53#include <net/if_dl.h> 54#include <net/if_media.h> 55#include <net/if_types.h> 56 57#ifdef INET 58#include <netinet/in.h> 59#include <netinet/in_systm.h> 60#include <netinet/in_var.h> 61#include <netinet/if_ether.h> 62#include <netinet/ip.h> 63#endif 64 65#include <net80211/ieee80211_var.h> 66#include <net80211/ieee80211_regdomain.h> 67#include <net80211/ieee80211_radiotap.h> 68#include <net80211/ieee80211_ratectl.h> 69 70#include <dev/usb/usb.h> 71#include <dev/usb/usbdi.h> 72#include "usbdevs.h" 73 74#define USB_DEBUG_VAR rum_debug 75#include <dev/usb/usb_debug.h> 76 77#include <dev/usb/wlan/if_rumreg.h> 78#include <dev/usb/wlan/if_rumvar.h> 79#include <dev/usb/wlan/if_rumfw.h> 80 81#ifdef USB_DEBUG 82static int rum_debug = 0; 83 84static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 85SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 86 "Debug level"); 87#endif 88 89#define N(a) ((int)(sizeof (a) / sizeof ((a)[0]))) 90 91static const STRUCT_USB_HOST_ID rum_devs[] = { 92#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 93 RUM_DEV(ABOCOM, HWU54DM), 94 RUM_DEV(ABOCOM, RT2573_2), 95 RUM_DEV(ABOCOM, RT2573_3), 96 RUM_DEV(ABOCOM, RT2573_4), 97 RUM_DEV(ABOCOM, WUG2700), 98 RUM_DEV(AMIT, CGWLUSB2GO), 99 RUM_DEV(ASUS, RT2573_1), 100 RUM_DEV(ASUS, RT2573_2), 101 RUM_DEV(BELKIN, F5D7050A), 102 RUM_DEV(BELKIN, F5D9050V3), 103 RUM_DEV(CISCOLINKSYS, WUSB54GC), 104 RUM_DEV(CISCOLINKSYS, WUSB54GR), 105 RUM_DEV(CONCEPTRONIC2, C54RU2), 106 RUM_DEV(COREGA, CGWLUSB2GL), 107 RUM_DEV(COREGA, CGWLUSB2GPX), 108 RUM_DEV(DICKSMITH, CWD854F), 109 RUM_DEV(DICKSMITH, RT2573), 110 RUM_DEV(EDIMAX, EW7318USG), 111 RUM_DEV(DLINK2, DWLG122C1), 112 RUM_DEV(DLINK2, WUA1340), 113 RUM_DEV(DLINK2, DWA111), 114 RUM_DEV(DLINK2, DWA110), 115 RUM_DEV(GIGABYTE, GNWB01GS), 116 RUM_DEV(GIGABYTE, GNWI05GS), 117 RUM_DEV(GIGASET, RT2573), 118 RUM_DEV(GOODWAY, RT2573), 119 RUM_DEV(GUILLEMOT, HWGUSB254LB), 120 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 121 RUM_DEV(HUAWEI3COM, WUB320G), 122 RUM_DEV(MELCO, G54HP), 123 RUM_DEV(MELCO, SG54HP), 124 RUM_DEV(MELCO, SG54HG), 125 RUM_DEV(MELCO, WLIUCG), 126 RUM_DEV(MELCO, WLRUCG), 127 RUM_DEV(MELCO, WLRUCGAOSS), 128 RUM_DEV(MSI, RT2573_1), 129 RUM_DEV(MSI, RT2573_2), 130 RUM_DEV(MSI, RT2573_3), 131 RUM_DEV(MSI, RT2573_4), 132 RUM_DEV(NOVATECH, RT2573), 133 RUM_DEV(PLANEX2, GWUS54HP), 134 RUM_DEV(PLANEX2, GWUS54MINI2), 135 RUM_DEV(PLANEX2, GWUSMM), 136 RUM_DEV(QCOM, RT2573), 137 RUM_DEV(QCOM, RT2573_2), 138 RUM_DEV(QCOM, RT2573_3), 139 RUM_DEV(RALINK, RT2573), 140 RUM_DEV(RALINK, RT2573_2), 141 RUM_DEV(RALINK, RT2671), 142 RUM_DEV(SITECOMEU, WL113R2), 143 RUM_DEV(SITECOMEU, WL172), 144 RUM_DEV(SPARKLAN, RT2573), 145 RUM_DEV(SURECOM, RT2573), 146#undef RUM_DEV 147}; 148 149static device_probe_t rum_match; 150static device_attach_t rum_attach; 151static device_detach_t rum_detach; 152 153static usb_callback_t rum_bulk_read_callback; 154static usb_callback_t rum_bulk_write_callback; 155 156static usb_error_t rum_do_request(struct rum_softc *sc, 157 struct usb_device_request *req, void *data); 158static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 159 const char [IFNAMSIZ], int, enum ieee80211_opmode, 160 int, const uint8_t [IEEE80211_ADDR_LEN], 161 const uint8_t [IEEE80211_ADDR_LEN]); 162static void rum_vap_delete(struct ieee80211vap *); 163static void rum_tx_free(struct rum_tx_data *, int); 164static void rum_setup_tx_list(struct rum_softc *); 165static void rum_unsetup_tx_list(struct rum_softc *); 166static int rum_newstate(struct ieee80211vap *, 167 enum ieee80211_state, int); 168static void rum_setup_tx_desc(struct rum_softc *, 169 struct rum_tx_desc *, uint32_t, uint16_t, int, 170 int); 171static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 172 struct ieee80211_node *); 173static int rum_tx_raw(struct rum_softc *, struct mbuf *, 174 struct ieee80211_node *, 175 const struct ieee80211_bpf_params *); 176static int rum_tx_data(struct rum_softc *, struct mbuf *, 177 struct ieee80211_node *); 178static void rum_start(struct ifnet *); 179static int rum_ioctl(struct ifnet *, u_long, caddr_t); 180static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 181 int); 182static uint32_t rum_read(struct rum_softc *, uint16_t); 183static void rum_read_multi(struct rum_softc *, uint16_t, void *, 184 int); 185static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 186static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 187 size_t); 188static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 189static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 190static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 191static void rum_select_antenna(struct rum_softc *); 192static void rum_enable_mrr(struct rum_softc *); 193static void rum_set_txpreamble(struct rum_softc *); 194static void rum_set_basicrates(struct rum_softc *); 195static void rum_select_band(struct rum_softc *, 196 struct ieee80211_channel *); 197static void rum_set_chan(struct rum_softc *, 198 struct ieee80211_channel *); 199static void rum_enable_tsf_sync(struct rum_softc *); 200static void rum_enable_tsf(struct rum_softc *); 201static void rum_update_slot(struct ifnet *); 202static void rum_set_bssid(struct rum_softc *, const uint8_t *); 203static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 204static void rum_update_mcast(struct ifnet *); 205static void rum_update_promisc(struct ifnet *); 206static void rum_setpromisc(struct rum_softc *); 207static const char *rum_get_rf(int); 208static void rum_read_eeprom(struct rum_softc *); 209static int rum_bbp_init(struct rum_softc *); 210static void rum_init_locked(struct rum_softc *); 211static void rum_init(void *); 212static void rum_stop(struct rum_softc *); 213static void rum_load_microcode(struct rum_softc *, const uint8_t *, 214 size_t); 215static void rum_prepare_beacon(struct rum_softc *, 216 struct ieee80211vap *); 217static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 218 const struct ieee80211_bpf_params *); 219static void rum_scan_start(struct ieee80211com *); 220static void rum_scan_end(struct ieee80211com *); 221static void rum_set_channel(struct ieee80211com *); 222static int rum_get_rssi(struct rum_softc *, uint8_t); 223static void rum_ratectl_start(struct rum_softc *, 224 struct ieee80211_node *); 225static void rum_ratectl_timeout(void *); 226static void rum_ratectl_task(void *, int); 227static int rum_pause(struct rum_softc *, int); 228 229static const struct { 230 uint32_t reg; 231 uint32_t val; 232} rum_def_mac[] = { 233 { RT2573_TXRX_CSR0, 0x025fb032 }, 234 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 235 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 236 { RT2573_TXRX_CSR3, 0x00858687 }, 237 { RT2573_TXRX_CSR7, 0x2e31353b }, 238 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 239 { RT2573_TXRX_CSR15, 0x0000000f }, 240 { RT2573_MAC_CSR6, 0x00000fff }, 241 { RT2573_MAC_CSR8, 0x016c030a }, 242 { RT2573_MAC_CSR10, 0x00000718 }, 243 { RT2573_MAC_CSR12, 0x00000004 }, 244 { RT2573_MAC_CSR13, 0x00007f00 }, 245 { RT2573_SEC_CSR0, 0x00000000 }, 246 { RT2573_SEC_CSR1, 0x00000000 }, 247 { RT2573_SEC_CSR5, 0x00000000 }, 248 { RT2573_PHY_CSR1, 0x000023b0 }, 249 { RT2573_PHY_CSR5, 0x00040a06 }, 250 { RT2573_PHY_CSR6, 0x00080606 }, 251 { RT2573_PHY_CSR7, 0x00000408 }, 252 { RT2573_AIFSN_CSR, 0x00002273 }, 253 { RT2573_CWMIN_CSR, 0x00002344 }, 254 { RT2573_CWMAX_CSR, 0x000034aa } 255}; 256 257static const struct { 258 uint8_t reg; 259 uint8_t val; 260} rum_def_bbp[] = { 261 { 3, 0x80 }, 262 { 15, 0x30 }, 263 { 17, 0x20 }, 264 { 21, 0xc8 }, 265 { 22, 0x38 }, 266 { 23, 0x06 }, 267 { 24, 0xfe }, 268 { 25, 0x0a }, 269 { 26, 0x0d }, 270 { 32, 0x0b }, 271 { 34, 0x12 }, 272 { 37, 0x07 }, 273 { 39, 0xf8 }, 274 { 41, 0x60 }, 275 { 53, 0x10 }, 276 { 54, 0x18 }, 277 { 60, 0x10 }, 278 { 61, 0x04 }, 279 { 62, 0x04 }, 280 { 75, 0xfe }, 281 { 86, 0xfe }, 282 { 88, 0xfe }, 283 { 90, 0x0f }, 284 { 99, 0x00 }, 285 { 102, 0x16 }, 286 { 107, 0x04 } 287}; 288 289static const struct rfprog { 290 uint8_t chan; 291 uint32_t r1, r2, r3, r4; 292} rum_rf5226[] = { 293 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 294 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 295 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 296 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 297 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 298 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 299 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 300 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 301 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 302 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 303 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 304 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 305 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 306 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 307 308 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 309 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 310 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 311 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 312 313 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 314 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 315 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 316 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 317 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 318 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 319 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 320 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 321 322 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 323 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 324 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 325 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 326 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 327 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 328 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 329 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 330 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 331 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 332 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 333 334 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 335 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 336 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 337 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 338 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 339}, rum_rf5225[] = { 340 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 341 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 342 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 343 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 344 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 345 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 346 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 347 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 348 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 349 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 350 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 351 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 352 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 353 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 354 355 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 356 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 357 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 358 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 359 360 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 361 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 362 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 363 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 364 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 365 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 366 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 367 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 368 369 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 370 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 371 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 372 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 373 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 374 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 375 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 376 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 377 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 378 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 379 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 380 381 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 382 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 383 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 384 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 385 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 386}; 387 388static const struct usb_config rum_config[RUM_N_TRANSFER] = { 389 [RUM_BULK_WR] = { 390 .type = UE_BULK, 391 .endpoint = UE_ADDR_ANY, 392 .direction = UE_DIR_OUT, 393 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 394 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 395 .callback = rum_bulk_write_callback, 396 .timeout = 5000, /* ms */ 397 }, 398 [RUM_BULK_RD] = { 399 .type = UE_BULK, 400 .endpoint = UE_ADDR_ANY, 401 .direction = UE_DIR_IN, 402 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 403 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 404 .callback = rum_bulk_read_callback, 405 }, 406}; 407 408static int 409rum_match(device_t self) 410{ 411 struct usb_attach_arg *uaa = device_get_ivars(self); 412 413 if (uaa->usb_mode != USB_MODE_HOST) 414 return (ENXIO); 415 if (uaa->info.bConfigIndex != 0) 416 return (ENXIO); 417 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 418 return (ENXIO); 419 420 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 421} 422 423static int 424rum_attach(device_t self) 425{ 426 struct usb_attach_arg *uaa = device_get_ivars(self); 427 struct rum_softc *sc = device_get_softc(self); 428 struct ieee80211com *ic; 429 struct ifnet *ifp; 430 uint8_t iface_index, bands; 431 uint32_t tmp; 432 int error, ntries; 433 434 device_set_usb_desc(self); 435 sc->sc_udev = uaa->device; 436 sc->sc_dev = self; 437 438 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 439 MTX_NETWORK_LOCK, MTX_DEF); 440 441 iface_index = RT2573_IFACE_INDEX; 442 error = usbd_transfer_setup(uaa->device, &iface_index, 443 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 444 if (error) { 445 device_printf(self, "could not allocate USB transfers, " 446 "err=%s\n", usbd_errstr(error)); 447 goto detach; 448 } 449 450 RUM_LOCK(sc); 451 /* retrieve RT2573 rev. no */ 452 for (ntries = 0; ntries < 100; ntries++) { 453 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 454 break; 455 if (rum_pause(sc, hz / 100)) 456 break; 457 } 458 if (ntries == 100) { 459 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 460 RUM_UNLOCK(sc); 461 goto detach; 462 } 463 464 /* retrieve MAC address and various other things from EEPROM */ 465 rum_read_eeprom(sc); 466 467 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 468 tmp, rum_get_rf(sc->rf_rev)); 469 470 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 471 RUM_UNLOCK(sc); 472 473 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 474 if (ifp == NULL) { 475 device_printf(sc->sc_dev, "can not if_alloc()\n"); 476 goto detach; 477 } 478 ic = ifp->if_l2com; 479 480 ifp->if_softc = sc; 481 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 482 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 483 ifp->if_init = rum_init; 484 ifp->if_ioctl = rum_ioctl; 485 ifp->if_start = rum_start; 486 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 487 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 488 IFQ_SET_READY(&ifp->if_snd); 489 490 ic->ic_ifp = ifp; 491 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 492 493 /* set device capabilities */ 494 ic->ic_caps = 495 IEEE80211_C_STA /* station mode supported */ 496 | IEEE80211_C_IBSS /* IBSS mode supported */ 497 | IEEE80211_C_MONITOR /* monitor mode supported */ 498 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 499 | IEEE80211_C_TXPMGT /* tx power management */ 500 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 501 | IEEE80211_C_SHSLOT /* short slot time supported */ 502 | IEEE80211_C_BGSCAN /* bg scanning supported */ 503 | IEEE80211_C_WPA /* 802.11i */ 504 ; 505 506 bands = 0; 507 setbit(&bands, IEEE80211_MODE_11B); 508 setbit(&bands, IEEE80211_MODE_11G); 509 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 510 setbit(&bands, IEEE80211_MODE_11A); 511 ieee80211_init_channels(ic, NULL, &bands); 512 513 ieee80211_ifattach(ic, sc->sc_bssid); 514 ic->ic_update_promisc = rum_update_promisc; 515 ic->ic_raw_xmit = rum_raw_xmit; 516 ic->ic_scan_start = rum_scan_start; 517 ic->ic_scan_end = rum_scan_end; 518 ic->ic_set_channel = rum_set_channel; 519 520 ic->ic_vap_create = rum_vap_create; 521 ic->ic_vap_delete = rum_vap_delete; 522 ic->ic_update_mcast = rum_update_mcast; 523 524 ieee80211_radiotap_attach(ic, 525 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 526 RT2573_TX_RADIOTAP_PRESENT, 527 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 528 RT2573_RX_RADIOTAP_PRESENT); 529 530 if (bootverbose) 531 ieee80211_announce(ic); 532 533 return (0); 534 535detach: 536 rum_detach(self); 537 return (ENXIO); /* failure */ 538} 539 540static int 541rum_detach(device_t self) 542{ 543 struct rum_softc *sc = device_get_softc(self); 544 struct ifnet *ifp = sc->sc_ifp; 545 struct ieee80211com *ic; 546 547 /* Prevent further ioctls */ 548 RUM_LOCK(sc); 549 sc->sc_detached = 1; 550 RUM_UNLOCK(sc); 551 552 /* stop all USB transfers */ 553 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 554 555 /* free TX list, if any */ 556 RUM_LOCK(sc); 557 rum_unsetup_tx_list(sc); 558 RUM_UNLOCK(sc); 559 560 if (ifp) { 561 ic = ifp->if_l2com; 562 ieee80211_ifdetach(ic); 563 if_free(ifp); 564 } 565 mtx_destroy(&sc->sc_mtx); 566 return (0); 567} 568 569static usb_error_t 570rum_do_request(struct rum_softc *sc, 571 struct usb_device_request *req, void *data) 572{ 573 usb_error_t err; 574 int ntries = 10; 575 576 while (ntries--) { 577 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 578 req, data, 0, NULL, 250 /* ms */); 579 if (err == 0) 580 break; 581 582 DPRINTFN(1, "Control request failed, %s (retrying)\n", 583 usbd_errstr(err)); 584 if (rum_pause(sc, hz / 100)) 585 break; 586 } 587 return (err); 588} 589 590static struct ieee80211vap * 591rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 592 enum ieee80211_opmode opmode, int flags, 593 const uint8_t bssid[IEEE80211_ADDR_LEN], 594 const uint8_t mac[IEEE80211_ADDR_LEN]) 595{ 596 struct rum_softc *sc = ic->ic_ifp->if_softc; 597 struct rum_vap *rvp; 598 struct ieee80211vap *vap; 599 600 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 601 return NULL; 602 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 603 M_80211_VAP, M_NOWAIT | M_ZERO); 604 if (rvp == NULL) 605 return NULL; 606 vap = &rvp->vap; 607 /* enable s/w bmiss handling for sta mode */ 608 609 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 610 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac) != 0) { 611 /* out of memory */ 612 free(rvp, M_80211_VAP); 613 return (NULL); 614 } 615 616 /* override state transition machine */ 617 rvp->newstate = vap->iv_newstate; 618 vap->iv_newstate = rum_newstate; 619 620 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 621 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 622 ieee80211_ratectl_init(vap); 623 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 624 /* complete setup */ 625 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 626 ic->ic_opmode = opmode; 627 return vap; 628} 629 630static void 631rum_vap_delete(struct ieee80211vap *vap) 632{ 633 struct rum_vap *rvp = RUM_VAP(vap); 634 struct ieee80211com *ic = vap->iv_ic; 635 636 usb_callout_drain(&rvp->ratectl_ch); 637 ieee80211_draintask(ic, &rvp->ratectl_task); 638 ieee80211_ratectl_deinit(vap); 639 ieee80211_vap_detach(vap); 640 free(rvp, M_80211_VAP); 641} 642 643static void 644rum_tx_free(struct rum_tx_data *data, int txerr) 645{ 646 struct rum_softc *sc = data->sc; 647 648 if (data->m != NULL) { 649 if (data->m->m_flags & M_TXCB) 650 ieee80211_process_callback(data->ni, data->m, 651 txerr ? ETIMEDOUT : 0); 652 m_freem(data->m); 653 data->m = NULL; 654 655 ieee80211_free_node(data->ni); 656 data->ni = NULL; 657 } 658 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 659 sc->tx_nfree++; 660} 661 662static void 663rum_setup_tx_list(struct rum_softc *sc) 664{ 665 struct rum_tx_data *data; 666 int i; 667 668 sc->tx_nfree = 0; 669 STAILQ_INIT(&sc->tx_q); 670 STAILQ_INIT(&sc->tx_free); 671 672 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 673 data = &sc->tx_data[i]; 674 675 data->sc = sc; 676 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 677 sc->tx_nfree++; 678 } 679} 680 681static void 682rum_unsetup_tx_list(struct rum_softc *sc) 683{ 684 struct rum_tx_data *data; 685 int i; 686 687 /* make sure any subsequent use of the queues will fail */ 688 sc->tx_nfree = 0; 689 STAILQ_INIT(&sc->tx_q); 690 STAILQ_INIT(&sc->tx_free); 691 692 /* free up all node references and mbufs */ 693 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 694 data = &sc->tx_data[i]; 695 696 if (data->m != NULL) { 697 m_freem(data->m); 698 data->m = NULL; 699 } 700 if (data->ni != NULL) { 701 ieee80211_free_node(data->ni); 702 data->ni = NULL; 703 } 704 } 705} 706 707static int 708rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 709{ 710 struct rum_vap *rvp = RUM_VAP(vap); 711 struct ieee80211com *ic = vap->iv_ic; 712 struct rum_softc *sc = ic->ic_ifp->if_softc; 713 const struct ieee80211_txparam *tp; 714 enum ieee80211_state ostate; 715 struct ieee80211_node *ni; 716 uint32_t tmp; 717 718 ostate = vap->iv_state; 719 DPRINTF("%s -> %s\n", 720 ieee80211_state_name[ostate], 721 ieee80211_state_name[nstate]); 722 723 IEEE80211_UNLOCK(ic); 724 RUM_LOCK(sc); 725 usb_callout_stop(&rvp->ratectl_ch); 726 727 switch (nstate) { 728 case IEEE80211_S_INIT: 729 if (ostate == IEEE80211_S_RUN) { 730 /* abort TSF synchronization */ 731 tmp = rum_read(sc, RT2573_TXRX_CSR9); 732 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 733 } 734 break; 735 736 case IEEE80211_S_RUN: 737 ni = ieee80211_ref_node(vap->iv_bss); 738 739 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 740 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 741 RUM_UNLOCK(sc); 742 IEEE80211_LOCK(ic); 743 ieee80211_free_node(ni); 744 return (-1); 745 } 746 rum_update_slot(ic->ic_ifp); 747 rum_enable_mrr(sc); 748 rum_set_txpreamble(sc); 749 rum_set_basicrates(sc); 750 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 751 rum_set_bssid(sc, sc->sc_bssid); 752 } 753 754 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 755 vap->iv_opmode == IEEE80211_M_IBSS) 756 rum_prepare_beacon(sc, vap); 757 758 if (vap->iv_opmode != IEEE80211_M_MONITOR) 759 rum_enable_tsf_sync(sc); 760 else 761 rum_enable_tsf(sc); 762 763 /* enable automatic rate adaptation */ 764 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 765 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 766 rum_ratectl_start(sc, ni); 767 ieee80211_free_node(ni); 768 break; 769 default: 770 break; 771 } 772 RUM_UNLOCK(sc); 773 IEEE80211_LOCK(ic); 774 return (rvp->newstate(vap, nstate, arg)); 775} 776 777static void 778rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 779{ 780 struct rum_softc *sc = usbd_xfer_softc(xfer); 781 struct ifnet *ifp = sc->sc_ifp; 782 struct ieee80211vap *vap; 783 struct rum_tx_data *data; 784 struct mbuf *m; 785 struct usb_page_cache *pc; 786 unsigned int len; 787 int actlen, sumlen; 788 789 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 790 791 switch (USB_GET_STATE(xfer)) { 792 case USB_ST_TRANSFERRED: 793 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 794 795 /* free resources */ 796 data = usbd_xfer_get_priv(xfer); 797 rum_tx_free(data, 0); 798 usbd_xfer_set_priv(xfer, NULL); 799 800 ifp->if_opackets++; 801 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 802 803 /* FALLTHROUGH */ 804 case USB_ST_SETUP: 805tr_setup: 806 data = STAILQ_FIRST(&sc->tx_q); 807 if (data) { 808 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 809 m = data->m; 810 811 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 812 DPRINTFN(0, "data overflow, %u bytes\n", 813 m->m_pkthdr.len); 814 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 815 } 816 pc = usbd_xfer_get_frame(xfer, 0); 817 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 818 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 819 m->m_pkthdr.len); 820 821 vap = data->ni->ni_vap; 822 if (ieee80211_radiotap_active_vap(vap)) { 823 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 824 825 tap->wt_flags = 0; 826 tap->wt_rate = data->rate; 827 tap->wt_antenna = sc->tx_ant; 828 829 ieee80211_radiotap_tx(vap, m); 830 } 831 832 /* align end on a 4-bytes boundary */ 833 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 834 if ((len % 64) == 0) 835 len += 4; 836 837 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 838 m->m_pkthdr.len, len); 839 840 usbd_xfer_set_frame_len(xfer, 0, len); 841 usbd_xfer_set_priv(xfer, data); 842 843 usbd_transfer_submit(xfer); 844 } 845 RUM_UNLOCK(sc); 846 rum_start(ifp); 847 RUM_LOCK(sc); 848 break; 849 850 default: /* Error */ 851 DPRINTFN(11, "transfer error, %s\n", 852 usbd_errstr(error)); 853 854 ifp->if_oerrors++; 855 data = usbd_xfer_get_priv(xfer); 856 if (data != NULL) { 857 rum_tx_free(data, error); 858 usbd_xfer_set_priv(xfer, NULL); 859 } 860 861 if (error != USB_ERR_CANCELLED) { 862 if (error == USB_ERR_TIMEOUT) 863 device_printf(sc->sc_dev, "device timeout\n"); 864 865 /* 866 * Try to clear stall first, also if other 867 * errors occur, hence clearing stall 868 * introduces a 50 ms delay: 869 */ 870 usbd_xfer_set_stall(xfer); 871 goto tr_setup; 872 } 873 break; 874 } 875} 876 877static void 878rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 879{ 880 struct rum_softc *sc = usbd_xfer_softc(xfer); 881 struct ifnet *ifp = sc->sc_ifp; 882 struct ieee80211com *ic = ifp->if_l2com; 883 struct ieee80211_node *ni; 884 struct mbuf *m = NULL; 885 struct usb_page_cache *pc; 886 uint32_t flags; 887 uint8_t rssi = 0; 888 int len; 889 890 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 891 892 switch (USB_GET_STATE(xfer)) { 893 case USB_ST_TRANSFERRED: 894 895 DPRINTFN(15, "rx done, actlen=%d\n", len); 896 897 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 898 DPRINTF("%s: xfer too short %d\n", 899 device_get_nameunit(sc->sc_dev), len); 900 ifp->if_ierrors++; 901 goto tr_setup; 902 } 903 904 len -= RT2573_RX_DESC_SIZE; 905 pc = usbd_xfer_get_frame(xfer, 0); 906 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 907 908 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 909 flags = le32toh(sc->sc_rx_desc.flags); 910 if (flags & RT2573_RX_CRC_ERROR) { 911 /* 912 * This should not happen since we did not 913 * request to receive those frames when we 914 * filled RUM_TXRX_CSR2: 915 */ 916 DPRINTFN(5, "PHY or CRC error\n"); 917 ifp->if_ierrors++; 918 goto tr_setup; 919 } 920 921 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 922 if (m == NULL) { 923 DPRINTF("could not allocate mbuf\n"); 924 ifp->if_ierrors++; 925 goto tr_setup; 926 } 927 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 928 mtod(m, uint8_t *), len); 929 930 /* finalize mbuf */ 931 m->m_pkthdr.rcvif = ifp; 932 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 933 934 if (ieee80211_radiotap_active(ic)) { 935 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 936 937 /* XXX read tsf */ 938 tap->wr_flags = 0; 939 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 940 (flags & RT2573_RX_OFDM) ? 941 IEEE80211_T_OFDM : IEEE80211_T_CCK); 942 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 943 tap->wr_antnoise = RT2573_NOISE_FLOOR; 944 tap->wr_antenna = sc->rx_ant; 945 } 946 /* FALLTHROUGH */ 947 case USB_ST_SETUP: 948tr_setup: 949 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 950 usbd_transfer_submit(xfer); 951 952 /* 953 * At the end of a USB callback it is always safe to unlock 954 * the private mutex of a device! That is why we do the 955 * "ieee80211_input" here, and not some lines up! 956 */ 957 RUM_UNLOCK(sc); 958 if (m) { 959 ni = ieee80211_find_rxnode(ic, 960 mtod(m, struct ieee80211_frame_min *)); 961 if (ni != NULL) { 962 (void) ieee80211_input(ni, m, rssi, 963 RT2573_NOISE_FLOOR); 964 ieee80211_free_node(ni); 965 } else 966 (void) ieee80211_input_all(ic, m, rssi, 967 RT2573_NOISE_FLOOR); 968 } 969 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 970 !IFQ_IS_EMPTY(&ifp->if_snd)) 971 rum_start(ifp); 972 RUM_LOCK(sc); 973 return; 974 975 default: /* Error */ 976 if (error != USB_ERR_CANCELLED) { 977 /* try to clear stall first */ 978 usbd_xfer_set_stall(xfer); 979 goto tr_setup; 980 } 981 return; 982 } 983} 984 985static uint8_t 986rum_plcp_signal(int rate) 987{ 988 switch (rate) { 989 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 990 case 12: return 0xb; 991 case 18: return 0xf; 992 case 24: return 0xa; 993 case 36: return 0xe; 994 case 48: return 0x9; 995 case 72: return 0xd; 996 case 96: return 0x8; 997 case 108: return 0xc; 998 999 /* CCK rates (NB: not IEEE std, device-specific) */ 1000 case 2: return 0x0; 1001 case 4: return 0x1; 1002 case 11: return 0x2; 1003 case 22: return 0x3; 1004 } 1005 return 0xff; /* XXX unsupported/unknown rate */ 1006} 1007 1008static void 1009rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1010 uint32_t flags, uint16_t xflags, int len, int rate) 1011{ 1012 struct ifnet *ifp = sc->sc_ifp; 1013 struct ieee80211com *ic = ifp->if_l2com; 1014 uint16_t plcp_length; 1015 int remainder; 1016 1017 desc->flags = htole32(flags); 1018 desc->flags |= htole32(RT2573_TX_VALID); 1019 desc->flags |= htole32(len << 16); 1020 1021 desc->xflags = htole16(xflags); 1022 1023 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1024 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1025 1026 /* setup PLCP fields */ 1027 desc->plcp_signal = rum_plcp_signal(rate); 1028 desc->plcp_service = 4; 1029 1030 len += IEEE80211_CRC_LEN; 1031 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1032 desc->flags |= htole32(RT2573_TX_OFDM); 1033 1034 plcp_length = len & 0xfff; 1035 desc->plcp_length_hi = plcp_length >> 6; 1036 desc->plcp_length_lo = plcp_length & 0x3f; 1037 } else { 1038 if (rate == 0) 1039 rate = 2; /* avoid division by zero */ 1040 plcp_length = (16 * len + rate - 1) / rate; 1041 if (rate == 22) { 1042 remainder = (16 * len) % 22; 1043 if (remainder != 0 && remainder < 7) 1044 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1045 } 1046 desc->plcp_length_hi = plcp_length >> 8; 1047 desc->plcp_length_lo = plcp_length & 0xff; 1048 1049 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1050 desc->plcp_signal |= 0x08; 1051 } 1052} 1053 1054static int 1055rum_sendprot(struct rum_softc *sc, 1056 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1057{ 1058 struct ieee80211com *ic = ni->ni_ic; 1059 const struct ieee80211_frame *wh; 1060 struct rum_tx_data *data; 1061 struct mbuf *mprot; 1062 int protrate, ackrate, pktlen, flags, isshort; 1063 uint16_t dur; 1064 1065 RUM_LOCK_ASSERT(sc, MA_OWNED); 1066 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1067 ("protection %d", prot)); 1068 1069 wh = mtod(m, const struct ieee80211_frame *); 1070 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1071 1072 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1073 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1074 1075 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1076 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1077 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1078 flags = RT2573_TX_MORE_FRAG; 1079 if (prot == IEEE80211_PROT_RTSCTS) { 1080 /* NB: CTS is the same size as an ACK */ 1081 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1082 flags |= RT2573_TX_NEED_ACK; 1083 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1084 } else { 1085 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1086 } 1087 if (mprot == NULL) { 1088 /* XXX stat + msg */ 1089 return (ENOBUFS); 1090 } 1091 data = STAILQ_FIRST(&sc->tx_free); 1092 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1093 sc->tx_nfree--; 1094 1095 data->m = mprot; 1096 data->ni = ieee80211_ref_node(ni); 1097 data->rate = protrate; 1098 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1099 1100 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1101 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1102 1103 return 0; 1104} 1105 1106static int 1107rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1108{ 1109 struct ieee80211vap *vap = ni->ni_vap; 1110 struct ifnet *ifp = sc->sc_ifp; 1111 struct ieee80211com *ic = ifp->if_l2com; 1112 struct rum_tx_data *data; 1113 struct ieee80211_frame *wh; 1114 const struct ieee80211_txparam *tp; 1115 struct ieee80211_key *k; 1116 uint32_t flags = 0; 1117 uint16_t dur; 1118 1119 RUM_LOCK_ASSERT(sc, MA_OWNED); 1120 1121 data = STAILQ_FIRST(&sc->tx_free); 1122 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1123 sc->tx_nfree--; 1124 1125 wh = mtod(m0, struct ieee80211_frame *); 1126 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1127 k = ieee80211_crypto_encap(ni, m0); 1128 if (k == NULL) { 1129 m_freem(m0); 1130 return ENOBUFS; 1131 } 1132 wh = mtod(m0, struct ieee80211_frame *); 1133 } 1134 1135 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1136 1137 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1138 flags |= RT2573_TX_NEED_ACK; 1139 1140 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1141 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1142 USETW(wh->i_dur, dur); 1143 1144 /* tell hardware to add timestamp for probe responses */ 1145 if ((wh->i_fc[0] & 1146 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1147 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1148 flags |= RT2573_TX_TIMESTAMP; 1149 } 1150 1151 data->m = m0; 1152 data->ni = ni; 1153 data->rate = tp->mgmtrate; 1154 1155 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1156 1157 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1158 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1159 1160 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1161 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1162 1163 return (0); 1164} 1165 1166static int 1167rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1168 const struct ieee80211_bpf_params *params) 1169{ 1170 struct ieee80211com *ic = ni->ni_ic; 1171 struct rum_tx_data *data; 1172 uint32_t flags; 1173 int rate, error; 1174 1175 RUM_LOCK_ASSERT(sc, MA_OWNED); 1176 KASSERT(params != NULL, ("no raw xmit params")); 1177 1178 rate = params->ibp_rate0; 1179 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1180 m_freem(m0); 1181 return EINVAL; 1182 } 1183 flags = 0; 1184 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1185 flags |= RT2573_TX_NEED_ACK; 1186 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1187 error = rum_sendprot(sc, m0, ni, 1188 params->ibp_flags & IEEE80211_BPF_RTS ? 1189 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1190 rate); 1191 if (error || sc->tx_nfree == 0) { 1192 m_freem(m0); 1193 return ENOBUFS; 1194 } 1195 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1196 } 1197 1198 data = STAILQ_FIRST(&sc->tx_free); 1199 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1200 sc->tx_nfree--; 1201 1202 data->m = m0; 1203 data->ni = ni; 1204 data->rate = rate; 1205 1206 /* XXX need to setup descriptor ourself */ 1207 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1208 1209 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1210 m0->m_pkthdr.len, rate); 1211 1212 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1213 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1214 1215 return 0; 1216} 1217 1218static int 1219rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1220{ 1221 struct ieee80211vap *vap = ni->ni_vap; 1222 struct ifnet *ifp = sc->sc_ifp; 1223 struct ieee80211com *ic = ifp->if_l2com; 1224 struct rum_tx_data *data; 1225 struct ieee80211_frame *wh; 1226 const struct ieee80211_txparam *tp; 1227 struct ieee80211_key *k; 1228 uint32_t flags = 0; 1229 uint16_t dur; 1230 int error, rate; 1231 1232 RUM_LOCK_ASSERT(sc, MA_OWNED); 1233 1234 wh = mtod(m0, struct ieee80211_frame *); 1235 1236 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1237 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1238 rate = tp->mcastrate; 1239 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1240 rate = tp->ucastrate; 1241 else 1242 rate = ni->ni_txrate; 1243 1244 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1245 k = ieee80211_crypto_encap(ni, m0); 1246 if (k == NULL) { 1247 m_freem(m0); 1248 return ENOBUFS; 1249 } 1250 1251 /* packet header may have moved, reset our local pointer */ 1252 wh = mtod(m0, struct ieee80211_frame *); 1253 } 1254 1255 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1256 int prot = IEEE80211_PROT_NONE; 1257 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1258 prot = IEEE80211_PROT_RTSCTS; 1259 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1260 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1261 prot = ic->ic_protmode; 1262 if (prot != IEEE80211_PROT_NONE) { 1263 error = rum_sendprot(sc, m0, ni, prot, rate); 1264 if (error || sc->tx_nfree == 0) { 1265 m_freem(m0); 1266 return ENOBUFS; 1267 } 1268 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1269 } 1270 } 1271 1272 data = STAILQ_FIRST(&sc->tx_free); 1273 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1274 sc->tx_nfree--; 1275 1276 data->m = m0; 1277 data->ni = ni; 1278 data->rate = rate; 1279 1280 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1281 flags |= RT2573_TX_NEED_ACK; 1282 flags |= RT2573_TX_MORE_FRAG; 1283 1284 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1285 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1286 USETW(wh->i_dur, dur); 1287 } 1288 1289 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1290 1291 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1292 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1293 1294 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1295 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1296 1297 return 0; 1298} 1299 1300static void 1301rum_start(struct ifnet *ifp) 1302{ 1303 struct rum_softc *sc = ifp->if_softc; 1304 struct ieee80211_node *ni; 1305 struct mbuf *m; 1306 1307 RUM_LOCK(sc); 1308 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1309 RUM_UNLOCK(sc); 1310 return; 1311 } 1312 for (;;) { 1313 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1314 if (m == NULL) 1315 break; 1316 if (sc->tx_nfree < RUM_TX_MINFREE) { 1317 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1318 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1319 break; 1320 } 1321 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1322 if (rum_tx_data(sc, m, ni) != 0) { 1323 ieee80211_free_node(ni); 1324 ifp->if_oerrors++; 1325 break; 1326 } 1327 } 1328 RUM_UNLOCK(sc); 1329} 1330 1331static int 1332rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1333{ 1334 struct rum_softc *sc = ifp->if_softc; 1335 struct ieee80211com *ic = ifp->if_l2com; 1336 struct ifreq *ifr = (struct ifreq *) data; 1337 int error; 1338 int startall = 0; 1339 1340 RUM_LOCK(sc); 1341 error = sc->sc_detached ? ENXIO : 0; 1342 RUM_UNLOCK(sc); 1343 if (error) 1344 return (error); 1345 1346 switch (cmd) { 1347 case SIOCSIFFLAGS: 1348 RUM_LOCK(sc); 1349 if (ifp->if_flags & IFF_UP) { 1350 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1351 rum_init_locked(sc); 1352 startall = 1; 1353 } else 1354 rum_setpromisc(sc); 1355 } else { 1356 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1357 rum_stop(sc); 1358 } 1359 RUM_UNLOCK(sc); 1360 if (startall) 1361 ieee80211_start_all(ic); 1362 break; 1363 case SIOCGIFMEDIA: 1364 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1365 break; 1366 case SIOCGIFADDR: 1367 error = ether_ioctl(ifp, cmd, data); 1368 break; 1369 default: 1370 error = EINVAL; 1371 break; 1372 } 1373 return error; 1374} 1375 1376static void 1377rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1378{ 1379 struct usb_device_request req; 1380 usb_error_t error; 1381 1382 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1383 req.bRequest = RT2573_READ_EEPROM; 1384 USETW(req.wValue, 0); 1385 USETW(req.wIndex, addr); 1386 USETW(req.wLength, len); 1387 1388 error = rum_do_request(sc, &req, buf); 1389 if (error != 0) { 1390 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1391 usbd_errstr(error)); 1392 } 1393} 1394 1395static uint32_t 1396rum_read(struct rum_softc *sc, uint16_t reg) 1397{ 1398 uint32_t val; 1399 1400 rum_read_multi(sc, reg, &val, sizeof val); 1401 1402 return le32toh(val); 1403} 1404 1405static void 1406rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1407{ 1408 struct usb_device_request req; 1409 usb_error_t error; 1410 1411 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1412 req.bRequest = RT2573_READ_MULTI_MAC; 1413 USETW(req.wValue, 0); 1414 USETW(req.wIndex, reg); 1415 USETW(req.wLength, len); 1416 1417 error = rum_do_request(sc, &req, buf); 1418 if (error != 0) { 1419 device_printf(sc->sc_dev, 1420 "could not multi read MAC register: %s\n", 1421 usbd_errstr(error)); 1422 } 1423} 1424 1425static usb_error_t 1426rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1427{ 1428 uint32_t tmp = htole32(val); 1429 1430 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1431} 1432 1433static usb_error_t 1434rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1435{ 1436 struct usb_device_request req; 1437 usb_error_t error; 1438 size_t offset; 1439 1440 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1441 req.bRequest = RT2573_WRITE_MULTI_MAC; 1442 USETW(req.wValue, 0); 1443 1444 /* write at most 64 bytes at a time */ 1445 for (offset = 0; offset < len; offset += 64) { 1446 USETW(req.wIndex, reg + offset); 1447 USETW(req.wLength, MIN(len - offset, 64)); 1448 1449 error = rum_do_request(sc, &req, (char *)buf + offset); 1450 if (error != 0) { 1451 device_printf(sc->sc_dev, 1452 "could not multi write MAC register: %s\n", 1453 usbd_errstr(error)); 1454 return (error); 1455 } 1456 } 1457 1458 return (USB_ERR_NORMAL_COMPLETION); 1459} 1460 1461static void 1462rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1463{ 1464 uint32_t tmp; 1465 int ntries; 1466 1467 DPRINTFN(2, "reg=0x%08x\n", reg); 1468 1469 for (ntries = 0; ntries < 100; ntries++) { 1470 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1471 break; 1472 if (rum_pause(sc, hz / 100)) 1473 break; 1474 } 1475 if (ntries == 100) { 1476 device_printf(sc->sc_dev, "could not write to BBP\n"); 1477 return; 1478 } 1479 1480 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1481 rum_write(sc, RT2573_PHY_CSR3, tmp); 1482} 1483 1484static uint8_t 1485rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1486{ 1487 uint32_t val; 1488 int ntries; 1489 1490 DPRINTFN(2, "reg=0x%08x\n", reg); 1491 1492 for (ntries = 0; ntries < 100; ntries++) { 1493 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1494 break; 1495 if (rum_pause(sc, hz / 100)) 1496 break; 1497 } 1498 if (ntries == 100) { 1499 device_printf(sc->sc_dev, "could not read BBP\n"); 1500 return 0; 1501 } 1502 1503 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1504 rum_write(sc, RT2573_PHY_CSR3, val); 1505 1506 for (ntries = 0; ntries < 100; ntries++) { 1507 val = rum_read(sc, RT2573_PHY_CSR3); 1508 if (!(val & RT2573_BBP_BUSY)) 1509 return val & 0xff; 1510 if (rum_pause(sc, hz / 100)) 1511 break; 1512 } 1513 1514 device_printf(sc->sc_dev, "could not read BBP\n"); 1515 return 0; 1516} 1517 1518static void 1519rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1520{ 1521 uint32_t tmp; 1522 int ntries; 1523 1524 for (ntries = 0; ntries < 100; ntries++) { 1525 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1526 break; 1527 if (rum_pause(sc, hz / 100)) 1528 break; 1529 } 1530 if (ntries == 100) { 1531 device_printf(sc->sc_dev, "could not write to RF\n"); 1532 return; 1533 } 1534 1535 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1536 (reg & 3); 1537 rum_write(sc, RT2573_PHY_CSR4, tmp); 1538 1539 /* remember last written value in sc */ 1540 sc->rf_regs[reg] = val; 1541 1542 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1543} 1544 1545static void 1546rum_select_antenna(struct rum_softc *sc) 1547{ 1548 uint8_t bbp4, bbp77; 1549 uint32_t tmp; 1550 1551 bbp4 = rum_bbp_read(sc, 4); 1552 bbp77 = rum_bbp_read(sc, 77); 1553 1554 /* TBD */ 1555 1556 /* make sure Rx is disabled before switching antenna */ 1557 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1558 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1559 1560 rum_bbp_write(sc, 4, bbp4); 1561 rum_bbp_write(sc, 77, bbp77); 1562 1563 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1564} 1565 1566/* 1567 * Enable multi-rate retries for frames sent at OFDM rates. 1568 * In 802.11b/g mode, allow fallback to CCK rates. 1569 */ 1570static void 1571rum_enable_mrr(struct rum_softc *sc) 1572{ 1573 struct ifnet *ifp = sc->sc_ifp; 1574 struct ieee80211com *ic = ifp->if_l2com; 1575 uint32_t tmp; 1576 1577 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1578 1579 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1580 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1581 tmp |= RT2573_MRR_CCK_FALLBACK; 1582 tmp |= RT2573_MRR_ENABLED; 1583 1584 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1585} 1586 1587static void 1588rum_set_txpreamble(struct rum_softc *sc) 1589{ 1590 struct ifnet *ifp = sc->sc_ifp; 1591 struct ieee80211com *ic = ifp->if_l2com; 1592 uint32_t tmp; 1593 1594 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1595 1596 tmp &= ~RT2573_SHORT_PREAMBLE; 1597 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1598 tmp |= RT2573_SHORT_PREAMBLE; 1599 1600 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1601} 1602 1603static void 1604rum_set_basicrates(struct rum_softc *sc) 1605{ 1606 struct ifnet *ifp = sc->sc_ifp; 1607 struct ieee80211com *ic = ifp->if_l2com; 1608 1609 /* update basic rate set */ 1610 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1611 /* 11b basic rates: 1, 2Mbps */ 1612 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1613 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1614 /* 11a basic rates: 6, 12, 24Mbps */ 1615 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1616 } else { 1617 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1618 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1619 } 1620} 1621 1622/* 1623 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1624 * driver. 1625 */ 1626static void 1627rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1628{ 1629 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1630 uint32_t tmp; 1631 1632 /* update all BBP registers that depend on the band */ 1633 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1634 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1635 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1636 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1637 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1638 } 1639 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1640 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1641 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1642 } 1643 1644 sc->bbp17 = bbp17; 1645 rum_bbp_write(sc, 17, bbp17); 1646 rum_bbp_write(sc, 96, bbp96); 1647 rum_bbp_write(sc, 104, bbp104); 1648 1649 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1650 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1651 rum_bbp_write(sc, 75, 0x80); 1652 rum_bbp_write(sc, 86, 0x80); 1653 rum_bbp_write(sc, 88, 0x80); 1654 } 1655 1656 rum_bbp_write(sc, 35, bbp35); 1657 rum_bbp_write(sc, 97, bbp97); 1658 rum_bbp_write(sc, 98, bbp98); 1659 1660 tmp = rum_read(sc, RT2573_PHY_CSR0); 1661 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1662 if (IEEE80211_IS_CHAN_2GHZ(c)) 1663 tmp |= RT2573_PA_PE_2GHZ; 1664 else 1665 tmp |= RT2573_PA_PE_5GHZ; 1666 rum_write(sc, RT2573_PHY_CSR0, tmp); 1667} 1668 1669static void 1670rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1671{ 1672 struct ifnet *ifp = sc->sc_ifp; 1673 struct ieee80211com *ic = ifp->if_l2com; 1674 const struct rfprog *rfprog; 1675 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1676 int8_t power; 1677 int i, chan; 1678 1679 chan = ieee80211_chan2ieee(ic, c); 1680 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1681 return; 1682 1683 /* select the appropriate RF settings based on what EEPROM says */ 1684 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1685 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1686 1687 /* find the settings for this channel (we know it exists) */ 1688 for (i = 0; rfprog[i].chan != chan; i++); 1689 1690 power = sc->txpow[i]; 1691 if (power < 0) { 1692 bbp94 += power; 1693 power = 0; 1694 } else if (power > 31) { 1695 bbp94 += power - 31; 1696 power = 31; 1697 } 1698 1699 /* 1700 * If we are switching from the 2GHz band to the 5GHz band or 1701 * vice-versa, BBP registers need to be reprogrammed. 1702 */ 1703 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1704 rum_select_band(sc, c); 1705 rum_select_antenna(sc); 1706 } 1707 ic->ic_curchan = c; 1708 1709 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1710 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1711 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1712 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1713 1714 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1715 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1716 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1717 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1718 1719 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1720 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1721 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1722 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1723 1724 rum_pause(sc, hz / 100); 1725 1726 /* enable smart mode for MIMO-capable RFs */ 1727 bbp3 = rum_bbp_read(sc, 3); 1728 1729 bbp3 &= ~RT2573_SMART_MODE; 1730 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1731 bbp3 |= RT2573_SMART_MODE; 1732 1733 rum_bbp_write(sc, 3, bbp3); 1734 1735 if (bbp94 != RT2573_BBPR94_DEFAULT) 1736 rum_bbp_write(sc, 94, bbp94); 1737 1738 /* give the chip some extra time to do the switchover */ 1739 rum_pause(sc, hz / 100); 1740} 1741 1742/* 1743 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1744 * and HostAP operating modes. 1745 */ 1746static void 1747rum_enable_tsf_sync(struct rum_softc *sc) 1748{ 1749 struct ifnet *ifp = sc->sc_ifp; 1750 struct ieee80211com *ic = ifp->if_l2com; 1751 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1752 uint32_t tmp; 1753 1754 if (vap->iv_opmode != IEEE80211_M_STA) { 1755 /* 1756 * Change default 16ms TBTT adjustment to 8ms. 1757 * Must be done before enabling beacon generation. 1758 */ 1759 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1760 } 1761 1762 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1763 1764 /* set beacon interval (in 1/16ms unit) */ 1765 tmp |= vap->iv_bss->ni_intval * 16; 1766 1767 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1768 if (vap->iv_opmode == IEEE80211_M_STA) 1769 tmp |= RT2573_TSF_MODE(1); 1770 else 1771 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1772 1773 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1774} 1775 1776static void 1777rum_enable_tsf(struct rum_softc *sc) 1778{ 1779 rum_write(sc, RT2573_TXRX_CSR9, 1780 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1781 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1782} 1783 1784static void 1785rum_update_slot(struct ifnet *ifp) 1786{ 1787 struct rum_softc *sc = ifp->if_softc; 1788 struct ieee80211com *ic = ifp->if_l2com; 1789 uint8_t slottime; 1790 uint32_t tmp; 1791 1792 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1793 1794 tmp = rum_read(sc, RT2573_MAC_CSR9); 1795 tmp = (tmp & ~0xff) | slottime; 1796 rum_write(sc, RT2573_MAC_CSR9, tmp); 1797 1798 DPRINTF("setting slot time to %uus\n", slottime); 1799} 1800 1801static void 1802rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1803{ 1804 uint32_t tmp; 1805 1806 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1807 rum_write(sc, RT2573_MAC_CSR4, tmp); 1808 1809 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1810 rum_write(sc, RT2573_MAC_CSR5, tmp); 1811} 1812 1813static void 1814rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1815{ 1816 uint32_t tmp; 1817 1818 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1819 rum_write(sc, RT2573_MAC_CSR2, tmp); 1820 1821 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1822 rum_write(sc, RT2573_MAC_CSR3, tmp); 1823} 1824 1825static void 1826rum_setpromisc(struct rum_softc *sc) 1827{ 1828 struct ifnet *ifp = sc->sc_ifp; 1829 uint32_t tmp; 1830 1831 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1832 1833 tmp &= ~RT2573_DROP_NOT_TO_ME; 1834 if (!(ifp->if_flags & IFF_PROMISC)) 1835 tmp |= RT2573_DROP_NOT_TO_ME; 1836 1837 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1838 1839 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1840 "entering" : "leaving"); 1841} 1842 1843static void 1844rum_update_promisc(struct ifnet *ifp) 1845{ 1846 struct rum_softc *sc = ifp->if_softc; 1847 1848 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1849 return; 1850 1851 RUM_LOCK(sc); 1852 rum_setpromisc(sc); 1853 RUM_UNLOCK(sc); 1854} 1855 1856static void 1857rum_update_mcast(struct ifnet *ifp) 1858{ 1859 static int warning_printed; 1860 1861 if (warning_printed == 0) { 1862 if_printf(ifp, "need to implement %s\n", __func__); 1863 warning_printed = 1; 1864 } 1865} 1866 1867static const char * 1868rum_get_rf(int rev) 1869{ 1870 switch (rev) { 1871 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1872 case RT2573_RF_2528: return "RT2528"; 1873 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1874 case RT2573_RF_5226: return "RT5226"; 1875 default: return "unknown"; 1876 } 1877} 1878 1879static void 1880rum_read_eeprom(struct rum_softc *sc) 1881{ 1882 uint16_t val; 1883#ifdef RUM_DEBUG 1884 int i; 1885#endif 1886 1887 /* read MAC address */ 1888 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1889 1890 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1891 val = le16toh(val); 1892 sc->rf_rev = (val >> 11) & 0x1f; 1893 sc->hw_radio = (val >> 10) & 0x1; 1894 sc->rx_ant = (val >> 4) & 0x3; 1895 sc->tx_ant = (val >> 2) & 0x3; 1896 sc->nb_ant = val & 0x3; 1897 1898 DPRINTF("RF revision=%d\n", sc->rf_rev); 1899 1900 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1901 val = le16toh(val); 1902 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1903 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1904 1905 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1906 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1907 1908 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1909 val = le16toh(val); 1910 if ((val & 0xff) != 0xff) 1911 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1912 1913 /* Only [-10, 10] is valid */ 1914 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1915 sc->rssi_2ghz_corr = 0; 1916 1917 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1918 val = le16toh(val); 1919 if ((val & 0xff) != 0xff) 1920 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1921 1922 /* Only [-10, 10] is valid */ 1923 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1924 sc->rssi_5ghz_corr = 0; 1925 1926 if (sc->ext_2ghz_lna) 1927 sc->rssi_2ghz_corr -= 14; 1928 if (sc->ext_5ghz_lna) 1929 sc->rssi_5ghz_corr -= 14; 1930 1931 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1932 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1933 1934 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1935 val = le16toh(val); 1936 if ((val & 0xff) != 0xff) 1937 sc->rffreq = val & 0xff; 1938 1939 DPRINTF("RF freq=%d\n", sc->rffreq); 1940 1941 /* read Tx power for all a/b/g channels */ 1942 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1943 /* XXX default Tx power for 802.11a channels */ 1944 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1945#ifdef RUM_DEBUG 1946 for (i = 0; i < 14; i++) 1947 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1948#endif 1949 1950 /* read default values for BBP registers */ 1951 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1952#ifdef RUM_DEBUG 1953 for (i = 0; i < 14; i++) { 1954 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1955 continue; 1956 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1957 sc->bbp_prom[i].val); 1958 } 1959#endif 1960} 1961 1962static int 1963rum_bbp_init(struct rum_softc *sc) 1964{ 1965 int i, ntries; 1966 1967 /* wait for BBP to be ready */ 1968 for (ntries = 0; ntries < 100; ntries++) { 1969 const uint8_t val = rum_bbp_read(sc, 0); 1970 if (val != 0 && val != 0xff) 1971 break; 1972 if (rum_pause(sc, hz / 100)) 1973 break; 1974 } 1975 if (ntries == 100) { 1976 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1977 return EIO; 1978 } 1979 1980 /* initialize BBP registers to default values */ 1981 for (i = 0; i < N(rum_def_bbp); i++) 1982 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1983 1984 /* write vendor-specific BBP values (from EEPROM) */ 1985 for (i = 0; i < 16; i++) { 1986 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1987 continue; 1988 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1989 } 1990 1991 return 0; 1992} 1993 1994static void 1995rum_init_locked(struct rum_softc *sc) 1996{ 1997 struct ifnet *ifp = sc->sc_ifp; 1998 struct ieee80211com *ic = ifp->if_l2com; 1999 uint32_t tmp; 2000 usb_error_t error; 2001 int i, ntries; 2002 2003 RUM_LOCK_ASSERT(sc, MA_OWNED); 2004 2005 rum_stop(sc); 2006 2007 /* initialize MAC registers to default values */ 2008 for (i = 0; i < N(rum_def_mac); i++) 2009 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2010 2011 /* set host ready */ 2012 rum_write(sc, RT2573_MAC_CSR1, 3); 2013 rum_write(sc, RT2573_MAC_CSR1, 0); 2014 2015 /* wait for BBP/RF to wakeup */ 2016 for (ntries = 0; ntries < 100; ntries++) { 2017 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2018 break; 2019 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2020 if (rum_pause(sc, hz / 100)) 2021 break; 2022 } 2023 if (ntries == 100) { 2024 device_printf(sc->sc_dev, 2025 "timeout waiting for BBP/RF to wakeup\n"); 2026 goto fail; 2027 } 2028 2029 if ((error = rum_bbp_init(sc)) != 0) 2030 goto fail; 2031 2032 /* select default channel */ 2033 rum_select_band(sc, ic->ic_curchan); 2034 rum_select_antenna(sc); 2035 rum_set_chan(sc, ic->ic_curchan); 2036 2037 /* clear STA registers */ 2038 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2039 2040 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2041 2042 /* initialize ASIC */ 2043 rum_write(sc, RT2573_MAC_CSR1, 4); 2044 2045 /* 2046 * Allocate Tx and Rx xfer queues. 2047 */ 2048 rum_setup_tx_list(sc); 2049 2050 /* update Rx filter */ 2051 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2052 2053 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2054 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2055 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2056 RT2573_DROP_ACKCTS; 2057 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2058 tmp |= RT2573_DROP_TODS; 2059 if (!(ifp->if_flags & IFF_PROMISC)) 2060 tmp |= RT2573_DROP_NOT_TO_ME; 2061 } 2062 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2063 2064 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2065 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2066 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2067 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2068 return; 2069 2070fail: rum_stop(sc); 2071#undef N 2072} 2073 2074static void 2075rum_init(void *priv) 2076{ 2077 struct rum_softc *sc = priv; 2078 struct ifnet *ifp = sc->sc_ifp; 2079 struct ieee80211com *ic = ifp->if_l2com; 2080 2081 RUM_LOCK(sc); 2082 rum_init_locked(sc); 2083 RUM_UNLOCK(sc); 2084 2085 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2086 ieee80211_start_all(ic); /* start all vap's */ 2087} 2088 2089static void 2090rum_stop(struct rum_softc *sc) 2091{ 2092 struct ifnet *ifp = sc->sc_ifp; 2093 uint32_t tmp; 2094 2095 RUM_LOCK_ASSERT(sc, MA_OWNED); 2096 2097 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2098 2099 RUM_UNLOCK(sc); 2100 2101 /* 2102 * Drain the USB transfers, if not already drained: 2103 */ 2104 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2105 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2106 2107 RUM_LOCK(sc); 2108 2109 rum_unsetup_tx_list(sc); 2110 2111 /* disable Rx */ 2112 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2113 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2114 2115 /* reset ASIC */ 2116 rum_write(sc, RT2573_MAC_CSR1, 3); 2117 rum_write(sc, RT2573_MAC_CSR1, 0); 2118} 2119 2120static void 2121rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2122{ 2123 struct usb_device_request req; 2124 uint16_t reg = RT2573_MCU_CODE_BASE; 2125 usb_error_t err; 2126 2127 /* copy firmware image into NIC */ 2128 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2129 err = rum_write(sc, reg, UGETDW(ucode)); 2130 if (err) { 2131 /* firmware already loaded ? */ 2132 device_printf(sc->sc_dev, "Firmware load " 2133 "failure! (ignored)\n"); 2134 break; 2135 } 2136 } 2137 2138 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2139 req.bRequest = RT2573_MCU_CNTL; 2140 USETW(req.wValue, RT2573_MCU_RUN); 2141 USETW(req.wIndex, 0); 2142 USETW(req.wLength, 0); 2143 2144 err = rum_do_request(sc, &req, NULL); 2145 if (err != 0) { 2146 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2147 usbd_errstr(err)); 2148 } 2149 2150 /* give the chip some time to boot */ 2151 rum_pause(sc, hz / 8); 2152} 2153 2154static void 2155rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2156{ 2157 struct ieee80211com *ic = vap->iv_ic; 2158 const struct ieee80211_txparam *tp; 2159 struct rum_tx_desc desc; 2160 struct mbuf *m0; 2161 2162 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2163 return; 2164 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2165 return; 2166 2167 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2168 if (m0 == NULL) 2169 return; 2170 2171 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2172 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2173 m0->m_pkthdr.len, tp->mgmtrate); 2174 2175 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2176 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2177 2178 /* copy beacon header and payload into NIC memory */ 2179 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2180 m0->m_pkthdr.len); 2181 2182 m_freem(m0); 2183} 2184 2185static int 2186rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2187 const struct ieee80211_bpf_params *params) 2188{ 2189 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2190 struct rum_softc *sc = ifp->if_softc; 2191 2192 RUM_LOCK(sc); 2193 /* prevent management frames from being sent if we're not ready */ 2194 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2195 RUM_UNLOCK(sc); 2196 m_freem(m); 2197 ieee80211_free_node(ni); 2198 return ENETDOWN; 2199 } 2200 if (sc->tx_nfree < RUM_TX_MINFREE) { 2201 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2202 RUM_UNLOCK(sc); 2203 m_freem(m); 2204 ieee80211_free_node(ni); 2205 return EIO; 2206 } 2207 2208 ifp->if_opackets++; 2209 2210 if (params == NULL) { 2211 /* 2212 * Legacy path; interpret frame contents to decide 2213 * precisely how to send the frame. 2214 */ 2215 if (rum_tx_mgt(sc, m, ni) != 0) 2216 goto bad; 2217 } else { 2218 /* 2219 * Caller supplied explicit parameters to use in 2220 * sending the frame. 2221 */ 2222 if (rum_tx_raw(sc, m, ni, params) != 0) 2223 goto bad; 2224 } 2225 RUM_UNLOCK(sc); 2226 2227 return 0; 2228bad: 2229 ifp->if_oerrors++; 2230 RUM_UNLOCK(sc); 2231 ieee80211_free_node(ni); 2232 return EIO; 2233} 2234 2235static void 2236rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2237{ 2238 struct ieee80211vap *vap = ni->ni_vap; 2239 struct rum_vap *rvp = RUM_VAP(vap); 2240 2241 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2242 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2243 2244 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2245} 2246 2247static void 2248rum_ratectl_timeout(void *arg) 2249{ 2250 struct rum_vap *rvp = arg; 2251 struct ieee80211vap *vap = &rvp->vap; 2252 struct ieee80211com *ic = vap->iv_ic; 2253 2254 ieee80211_runtask(ic, &rvp->ratectl_task); 2255} 2256 2257static void 2258rum_ratectl_task(void *arg, int pending) 2259{ 2260 struct rum_vap *rvp = arg; 2261 struct ieee80211vap *vap = &rvp->vap; 2262 struct ieee80211com *ic = vap->iv_ic; 2263 struct ifnet *ifp = ic->ic_ifp; 2264 struct rum_softc *sc = ifp->if_softc; 2265 struct ieee80211_node *ni; 2266 int ok, fail; 2267 int sum, retrycnt; 2268 2269 RUM_LOCK(sc); 2270 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2271 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2272 2273 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2274 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2275 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2276 sum = ok+fail; 2277 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2278 2279 ni = ieee80211_ref_node(vap->iv_bss); 2280 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2281 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2282 ieee80211_free_node(ni); 2283 2284 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2285 2286 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2287 RUM_UNLOCK(sc); 2288} 2289 2290static void 2291rum_scan_start(struct ieee80211com *ic) 2292{ 2293 struct ifnet *ifp = ic->ic_ifp; 2294 struct rum_softc *sc = ifp->if_softc; 2295 uint32_t tmp; 2296 2297 RUM_LOCK(sc); 2298 /* abort TSF synchronization */ 2299 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2300 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2301 rum_set_bssid(sc, ifp->if_broadcastaddr); 2302 RUM_UNLOCK(sc); 2303 2304} 2305 2306static void 2307rum_scan_end(struct ieee80211com *ic) 2308{ 2309 struct rum_softc *sc = ic->ic_ifp->if_softc; 2310 2311 RUM_LOCK(sc); 2312 rum_enable_tsf_sync(sc); 2313 rum_set_bssid(sc, sc->sc_bssid); 2314 RUM_UNLOCK(sc); 2315 2316} 2317 2318static void 2319rum_set_channel(struct ieee80211com *ic) 2320{ 2321 struct rum_softc *sc = ic->ic_ifp->if_softc; 2322 2323 RUM_LOCK(sc); 2324 rum_set_chan(sc, ic->ic_curchan); 2325 RUM_UNLOCK(sc); 2326} 2327 2328static int 2329rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2330{ 2331 struct ifnet *ifp = sc->sc_ifp; 2332 struct ieee80211com *ic = ifp->if_l2com; 2333 int lna, agc, rssi; 2334 2335 lna = (raw >> 5) & 0x3; 2336 agc = raw & 0x1f; 2337 2338 if (lna == 0) { 2339 /* 2340 * No RSSI mapping 2341 * 2342 * NB: Since RSSI is relative to noise floor, -1 is 2343 * adequate for caller to know error happened. 2344 */ 2345 return -1; 2346 } 2347 2348 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2349 2350 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2351 rssi += sc->rssi_2ghz_corr; 2352 2353 if (lna == 1) 2354 rssi -= 64; 2355 else if (lna == 2) 2356 rssi -= 74; 2357 else if (lna == 3) 2358 rssi -= 90; 2359 } else { 2360 rssi += sc->rssi_5ghz_corr; 2361 2362 if (!sc->ext_5ghz_lna && lna != 1) 2363 rssi += 4; 2364 2365 if (lna == 1) 2366 rssi -= 64; 2367 else if (lna == 2) 2368 rssi -= 86; 2369 else if (lna == 3) 2370 rssi -= 100; 2371 } 2372 return rssi; 2373} 2374 2375static int 2376rum_pause(struct rum_softc *sc, int timeout) 2377{ 2378 2379 usb_pause_mtx(&sc->sc_mtx, timeout); 2380 return (0); 2381} 2382 2383static device_method_t rum_methods[] = { 2384 /* Device interface */ 2385 DEVMETHOD(device_probe, rum_match), 2386 DEVMETHOD(device_attach, rum_attach), 2387 DEVMETHOD(device_detach, rum_detach), 2388 DEVMETHOD_END 2389}; 2390 2391static driver_t rum_driver = { 2392 .name = "rum", 2393 .methods = rum_methods, 2394 .size = sizeof(struct rum_softc), 2395}; 2396 2397static devclass_t rum_devclass; 2398 2399DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2400MODULE_DEPEND(rum, wlan, 1, 1, 1); 2401MODULE_DEPEND(rum, usb, 1, 1, 1); 2402MODULE_VERSION(rum, 1); 2403