if_rum.c revision 283527
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 283527 2015-05-25 13:51:13Z glebius $ */ 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 283527 2015-05-25 13:51:13Z glebius $"); 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_RWTUN, &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_name = device_get_nameunit(self); 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_update_promisc = rum_update_promisc; 516 ic->ic_raw_xmit = rum_raw_xmit; 517 ic->ic_scan_start = rum_scan_start; 518 ic->ic_scan_end = rum_scan_end; 519 ic->ic_set_channel = rum_set_channel; 520 521 ic->ic_vap_create = rum_vap_create; 522 ic->ic_vap_delete = rum_vap_delete; 523 ic->ic_update_mcast = rum_update_mcast; 524 525 ieee80211_radiotap_attach(ic, 526 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 527 RT2573_TX_RADIOTAP_PRESENT, 528 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 529 RT2573_RX_RADIOTAP_PRESENT); 530 531 if (bootverbose) 532 ieee80211_announce(ic); 533 534 return (0); 535 536detach: 537 rum_detach(self); 538 return (ENXIO); /* failure */ 539} 540 541static int 542rum_detach(device_t self) 543{ 544 struct rum_softc *sc = device_get_softc(self); 545 struct ifnet *ifp = sc->sc_ifp; 546 struct ieee80211com *ic; 547 548 /* Prevent further ioctls */ 549 RUM_LOCK(sc); 550 sc->sc_detached = 1; 551 RUM_UNLOCK(sc); 552 553 /* stop all USB transfers */ 554 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 555 556 /* free TX list, if any */ 557 RUM_LOCK(sc); 558 rum_unsetup_tx_list(sc); 559 RUM_UNLOCK(sc); 560 561 if (ifp) { 562 ic = ifp->if_l2com; 563 ieee80211_ifdetach(ic); 564 if_free(ifp); 565 } 566 mtx_destroy(&sc->sc_mtx); 567 return (0); 568} 569 570static usb_error_t 571rum_do_request(struct rum_softc *sc, 572 struct usb_device_request *req, void *data) 573{ 574 usb_error_t err; 575 int ntries = 10; 576 577 while (ntries--) { 578 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 579 req, data, 0, NULL, 250 /* ms */); 580 if (err == 0) 581 break; 582 583 DPRINTFN(1, "Control request failed, %s (retrying)\n", 584 usbd_errstr(err)); 585 if (rum_pause(sc, hz / 100)) 586 break; 587 } 588 return (err); 589} 590 591static struct ieee80211vap * 592rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 593 enum ieee80211_opmode opmode, int flags, 594 const uint8_t bssid[IEEE80211_ADDR_LEN], 595 const uint8_t mac[IEEE80211_ADDR_LEN]) 596{ 597 struct rum_softc *sc = ic->ic_ifp->if_softc; 598 struct rum_vap *rvp; 599 struct ieee80211vap *vap; 600 601 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 602 return NULL; 603 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 604 M_80211_VAP, M_NOWAIT | M_ZERO); 605 if (rvp == NULL) 606 return NULL; 607 vap = &rvp->vap; 608 /* enable s/w bmiss handling for sta mode */ 609 610 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 611 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac) != 0) { 612 /* out of memory */ 613 free(rvp, M_80211_VAP); 614 return (NULL); 615 } 616 617 /* override state transition machine */ 618 rvp->newstate = vap->iv_newstate; 619 vap->iv_newstate = rum_newstate; 620 621 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 622 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 623 ieee80211_ratectl_init(vap); 624 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 625 /* complete setup */ 626 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 627 ic->ic_opmode = opmode; 628 return vap; 629} 630 631static void 632rum_vap_delete(struct ieee80211vap *vap) 633{ 634 struct rum_vap *rvp = RUM_VAP(vap); 635 struct ieee80211com *ic = vap->iv_ic; 636 637 usb_callout_drain(&rvp->ratectl_ch); 638 ieee80211_draintask(ic, &rvp->ratectl_task); 639 ieee80211_ratectl_deinit(vap); 640 ieee80211_vap_detach(vap); 641 free(rvp, M_80211_VAP); 642} 643 644static void 645rum_tx_free(struct rum_tx_data *data, int txerr) 646{ 647 struct rum_softc *sc = data->sc; 648 649 if (data->m != NULL) { 650 if (data->m->m_flags & M_TXCB) 651 ieee80211_process_callback(data->ni, data->m, 652 txerr ? ETIMEDOUT : 0); 653 m_freem(data->m); 654 data->m = NULL; 655 656 ieee80211_free_node(data->ni); 657 data->ni = NULL; 658 } 659 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 660 sc->tx_nfree++; 661} 662 663static void 664rum_setup_tx_list(struct rum_softc *sc) 665{ 666 struct rum_tx_data *data; 667 int i; 668 669 sc->tx_nfree = 0; 670 STAILQ_INIT(&sc->tx_q); 671 STAILQ_INIT(&sc->tx_free); 672 673 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 674 data = &sc->tx_data[i]; 675 676 data->sc = sc; 677 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 678 sc->tx_nfree++; 679 } 680} 681 682static void 683rum_unsetup_tx_list(struct rum_softc *sc) 684{ 685 struct rum_tx_data *data; 686 int i; 687 688 /* make sure any subsequent use of the queues will fail */ 689 sc->tx_nfree = 0; 690 STAILQ_INIT(&sc->tx_q); 691 STAILQ_INIT(&sc->tx_free); 692 693 /* free up all node references and mbufs */ 694 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 695 data = &sc->tx_data[i]; 696 697 if (data->m != NULL) { 698 m_freem(data->m); 699 data->m = NULL; 700 } 701 if (data->ni != NULL) { 702 ieee80211_free_node(data->ni); 703 data->ni = NULL; 704 } 705 } 706} 707 708static int 709rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 710{ 711 struct rum_vap *rvp = RUM_VAP(vap); 712 struct ieee80211com *ic = vap->iv_ic; 713 struct rum_softc *sc = ic->ic_ifp->if_softc; 714 const struct ieee80211_txparam *tp; 715 enum ieee80211_state ostate; 716 struct ieee80211_node *ni; 717 uint32_t tmp; 718 719 ostate = vap->iv_state; 720 DPRINTF("%s -> %s\n", 721 ieee80211_state_name[ostate], 722 ieee80211_state_name[nstate]); 723 724 IEEE80211_UNLOCK(ic); 725 RUM_LOCK(sc); 726 usb_callout_stop(&rvp->ratectl_ch); 727 728 switch (nstate) { 729 case IEEE80211_S_INIT: 730 if (ostate == IEEE80211_S_RUN) { 731 /* abort TSF synchronization */ 732 tmp = rum_read(sc, RT2573_TXRX_CSR9); 733 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 734 } 735 break; 736 737 case IEEE80211_S_RUN: 738 ni = ieee80211_ref_node(vap->iv_bss); 739 740 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 741 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 742 RUM_UNLOCK(sc); 743 IEEE80211_LOCK(ic); 744 ieee80211_free_node(ni); 745 return (-1); 746 } 747 rum_update_slot(ic->ic_ifp); 748 rum_enable_mrr(sc); 749 rum_set_txpreamble(sc); 750 rum_set_basicrates(sc); 751 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 752 rum_set_bssid(sc, sc->sc_bssid); 753 } 754 755 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 756 vap->iv_opmode == IEEE80211_M_IBSS) 757 rum_prepare_beacon(sc, vap); 758 759 if (vap->iv_opmode != IEEE80211_M_MONITOR) 760 rum_enable_tsf_sync(sc); 761 else 762 rum_enable_tsf(sc); 763 764 /* enable automatic rate adaptation */ 765 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 766 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 767 rum_ratectl_start(sc, ni); 768 ieee80211_free_node(ni); 769 break; 770 default: 771 break; 772 } 773 RUM_UNLOCK(sc); 774 IEEE80211_LOCK(ic); 775 return (rvp->newstate(vap, nstate, arg)); 776} 777 778static void 779rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 780{ 781 struct rum_softc *sc = usbd_xfer_softc(xfer); 782 struct ifnet *ifp = sc->sc_ifp; 783 struct ieee80211vap *vap; 784 struct rum_tx_data *data; 785 struct mbuf *m; 786 struct usb_page_cache *pc; 787 unsigned int len; 788 int actlen, sumlen; 789 790 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 791 792 switch (USB_GET_STATE(xfer)) { 793 case USB_ST_TRANSFERRED: 794 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 795 796 /* free resources */ 797 data = usbd_xfer_get_priv(xfer); 798 rum_tx_free(data, 0); 799 usbd_xfer_set_priv(xfer, NULL); 800 801 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 802 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 803 804 /* FALLTHROUGH */ 805 case USB_ST_SETUP: 806tr_setup: 807 data = STAILQ_FIRST(&sc->tx_q); 808 if (data) { 809 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 810 m = data->m; 811 812 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 813 DPRINTFN(0, "data overflow, %u bytes\n", 814 m->m_pkthdr.len); 815 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 816 } 817 pc = usbd_xfer_get_frame(xfer, 0); 818 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 819 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 820 m->m_pkthdr.len); 821 822 vap = data->ni->ni_vap; 823 if (ieee80211_radiotap_active_vap(vap)) { 824 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 825 826 tap->wt_flags = 0; 827 tap->wt_rate = data->rate; 828 tap->wt_antenna = sc->tx_ant; 829 830 ieee80211_radiotap_tx(vap, m); 831 } 832 833 /* align end on a 4-bytes boundary */ 834 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 835 if ((len % 64) == 0) 836 len += 4; 837 838 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 839 m->m_pkthdr.len, len); 840 841 usbd_xfer_set_frame_len(xfer, 0, len); 842 usbd_xfer_set_priv(xfer, data); 843 844 usbd_transfer_submit(xfer); 845 } 846 RUM_UNLOCK(sc); 847 rum_start(ifp); 848 RUM_LOCK(sc); 849 break; 850 851 default: /* Error */ 852 DPRINTFN(11, "transfer error, %s\n", 853 usbd_errstr(error)); 854 855 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 856 data = usbd_xfer_get_priv(xfer); 857 if (data != NULL) { 858 rum_tx_free(data, error); 859 usbd_xfer_set_priv(xfer, NULL); 860 } 861 862 if (error != USB_ERR_CANCELLED) { 863 if (error == USB_ERR_TIMEOUT) 864 device_printf(sc->sc_dev, "device timeout\n"); 865 866 /* 867 * Try to clear stall first, also if other 868 * errors occur, hence clearing stall 869 * introduces a 50 ms delay: 870 */ 871 usbd_xfer_set_stall(xfer); 872 goto tr_setup; 873 } 874 break; 875 } 876} 877 878static void 879rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 880{ 881 struct rum_softc *sc = usbd_xfer_softc(xfer); 882 struct ifnet *ifp = sc->sc_ifp; 883 struct ieee80211com *ic = ifp->if_l2com; 884 struct ieee80211_node *ni; 885 struct mbuf *m = NULL; 886 struct usb_page_cache *pc; 887 uint32_t flags; 888 uint8_t rssi = 0; 889 int len; 890 891 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 892 893 switch (USB_GET_STATE(xfer)) { 894 case USB_ST_TRANSFERRED: 895 896 DPRINTFN(15, "rx done, actlen=%d\n", len); 897 898 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 899 DPRINTF("%s: xfer too short %d\n", 900 device_get_nameunit(sc->sc_dev), len); 901 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 902 goto tr_setup; 903 } 904 905 len -= RT2573_RX_DESC_SIZE; 906 pc = usbd_xfer_get_frame(xfer, 0); 907 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 908 909 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 910 flags = le32toh(sc->sc_rx_desc.flags); 911 if (flags & RT2573_RX_CRC_ERROR) { 912 /* 913 * This should not happen since we did not 914 * request to receive those frames when we 915 * filled RUM_TXRX_CSR2: 916 */ 917 DPRINTFN(5, "PHY or CRC error\n"); 918 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 919 goto tr_setup; 920 } 921 922 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 923 if (m == NULL) { 924 DPRINTF("could not allocate mbuf\n"); 925 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 926 goto tr_setup; 927 } 928 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 929 mtod(m, uint8_t *), len); 930 931 /* finalize mbuf */ 932 m->m_pkthdr.rcvif = ifp; 933 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 934 935 if (ieee80211_radiotap_active(ic)) { 936 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 937 938 /* XXX read tsf */ 939 tap->wr_flags = 0; 940 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 941 (flags & RT2573_RX_OFDM) ? 942 IEEE80211_T_OFDM : IEEE80211_T_CCK); 943 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 944 tap->wr_antnoise = RT2573_NOISE_FLOOR; 945 tap->wr_antenna = sc->rx_ant; 946 } 947 /* FALLTHROUGH */ 948 case USB_ST_SETUP: 949tr_setup: 950 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 951 usbd_transfer_submit(xfer); 952 953 /* 954 * At the end of a USB callback it is always safe to unlock 955 * the private mutex of a device! That is why we do the 956 * "ieee80211_input" here, and not some lines up! 957 */ 958 RUM_UNLOCK(sc); 959 if (m) { 960 ni = ieee80211_find_rxnode(ic, 961 mtod(m, struct ieee80211_frame_min *)); 962 if (ni != NULL) { 963 (void) ieee80211_input(ni, m, rssi, 964 RT2573_NOISE_FLOOR); 965 ieee80211_free_node(ni); 966 } else 967 (void) ieee80211_input_all(ic, m, rssi, 968 RT2573_NOISE_FLOOR); 969 } 970 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 971 !IFQ_IS_EMPTY(&ifp->if_snd)) 972 rum_start(ifp); 973 RUM_LOCK(sc); 974 return; 975 976 default: /* Error */ 977 if (error != USB_ERR_CANCELLED) { 978 /* try to clear stall first */ 979 usbd_xfer_set_stall(xfer); 980 goto tr_setup; 981 } 982 return; 983 } 984} 985 986static uint8_t 987rum_plcp_signal(int rate) 988{ 989 switch (rate) { 990 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 991 case 12: return 0xb; 992 case 18: return 0xf; 993 case 24: return 0xa; 994 case 36: return 0xe; 995 case 48: return 0x9; 996 case 72: return 0xd; 997 case 96: return 0x8; 998 case 108: return 0xc; 999 1000 /* CCK rates (NB: not IEEE std, device-specific) */ 1001 case 2: return 0x0; 1002 case 4: return 0x1; 1003 case 11: return 0x2; 1004 case 22: return 0x3; 1005 } 1006 return 0xff; /* XXX unsupported/unknown rate */ 1007} 1008 1009static void 1010rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1011 uint32_t flags, uint16_t xflags, int len, int rate) 1012{ 1013 struct ifnet *ifp = sc->sc_ifp; 1014 struct ieee80211com *ic = ifp->if_l2com; 1015 uint16_t plcp_length; 1016 int remainder; 1017 1018 desc->flags = htole32(flags); 1019 desc->flags |= htole32(RT2573_TX_VALID); 1020 desc->flags |= htole32(len << 16); 1021 1022 desc->xflags = htole16(xflags); 1023 1024 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1025 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1026 1027 /* setup PLCP fields */ 1028 desc->plcp_signal = rum_plcp_signal(rate); 1029 desc->plcp_service = 4; 1030 1031 len += IEEE80211_CRC_LEN; 1032 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1033 desc->flags |= htole32(RT2573_TX_OFDM); 1034 1035 plcp_length = len & 0xfff; 1036 desc->plcp_length_hi = plcp_length >> 6; 1037 desc->plcp_length_lo = plcp_length & 0x3f; 1038 } else { 1039 if (rate == 0) 1040 rate = 2; /* avoid division by zero */ 1041 plcp_length = (16 * len + rate - 1) / rate; 1042 if (rate == 22) { 1043 remainder = (16 * len) % 22; 1044 if (remainder != 0 && remainder < 7) 1045 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1046 } 1047 desc->plcp_length_hi = plcp_length >> 8; 1048 desc->plcp_length_lo = plcp_length & 0xff; 1049 1050 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1051 desc->plcp_signal |= 0x08; 1052 } 1053} 1054 1055static int 1056rum_sendprot(struct rum_softc *sc, 1057 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1058{ 1059 struct ieee80211com *ic = ni->ni_ic; 1060 const struct ieee80211_frame *wh; 1061 struct rum_tx_data *data; 1062 struct mbuf *mprot; 1063 int protrate, ackrate, pktlen, flags, isshort; 1064 uint16_t dur; 1065 1066 RUM_LOCK_ASSERT(sc, MA_OWNED); 1067 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1068 ("protection %d", prot)); 1069 1070 wh = mtod(m, const struct ieee80211_frame *); 1071 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1072 1073 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1074 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1075 1076 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1077 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1078 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1079 flags = RT2573_TX_MORE_FRAG; 1080 if (prot == IEEE80211_PROT_RTSCTS) { 1081 /* NB: CTS is the same size as an ACK */ 1082 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1083 flags |= RT2573_TX_NEED_ACK; 1084 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1085 } else { 1086 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1087 } 1088 if (mprot == NULL) { 1089 /* XXX stat + msg */ 1090 return (ENOBUFS); 1091 } 1092 data = STAILQ_FIRST(&sc->tx_free); 1093 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1094 sc->tx_nfree--; 1095 1096 data->m = mprot; 1097 data->ni = ieee80211_ref_node(ni); 1098 data->rate = protrate; 1099 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1100 1101 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1102 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1103 1104 return 0; 1105} 1106 1107static int 1108rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1109{ 1110 struct ieee80211vap *vap = ni->ni_vap; 1111 struct ifnet *ifp = sc->sc_ifp; 1112 struct ieee80211com *ic = ifp->if_l2com; 1113 struct rum_tx_data *data; 1114 struct ieee80211_frame *wh; 1115 const struct ieee80211_txparam *tp; 1116 struct ieee80211_key *k; 1117 uint32_t flags = 0; 1118 uint16_t dur; 1119 1120 RUM_LOCK_ASSERT(sc, MA_OWNED); 1121 1122 data = STAILQ_FIRST(&sc->tx_free); 1123 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1124 sc->tx_nfree--; 1125 1126 wh = mtod(m0, struct ieee80211_frame *); 1127 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1128 k = ieee80211_crypto_encap(ni, m0); 1129 if (k == NULL) { 1130 m_freem(m0); 1131 return ENOBUFS; 1132 } 1133 wh = mtod(m0, struct ieee80211_frame *); 1134 } 1135 1136 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1137 1138 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1139 flags |= RT2573_TX_NEED_ACK; 1140 1141 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1142 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1143 USETW(wh->i_dur, dur); 1144 1145 /* tell hardware to add timestamp for probe responses */ 1146 if ((wh->i_fc[0] & 1147 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1148 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1149 flags |= RT2573_TX_TIMESTAMP; 1150 } 1151 1152 data->m = m0; 1153 data->ni = ni; 1154 data->rate = tp->mgmtrate; 1155 1156 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1157 1158 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1159 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1160 1161 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1162 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1163 1164 return (0); 1165} 1166 1167static int 1168rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1169 const struct ieee80211_bpf_params *params) 1170{ 1171 struct ieee80211com *ic = ni->ni_ic; 1172 struct rum_tx_data *data; 1173 uint32_t flags; 1174 int rate, error; 1175 1176 RUM_LOCK_ASSERT(sc, MA_OWNED); 1177 KASSERT(params != NULL, ("no raw xmit params")); 1178 1179 rate = params->ibp_rate0; 1180 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1181 m_freem(m0); 1182 return EINVAL; 1183 } 1184 flags = 0; 1185 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1186 flags |= RT2573_TX_NEED_ACK; 1187 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1188 error = rum_sendprot(sc, m0, ni, 1189 params->ibp_flags & IEEE80211_BPF_RTS ? 1190 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1191 rate); 1192 if (error || sc->tx_nfree == 0) { 1193 m_freem(m0); 1194 return ENOBUFS; 1195 } 1196 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1197 } 1198 1199 data = STAILQ_FIRST(&sc->tx_free); 1200 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1201 sc->tx_nfree--; 1202 1203 data->m = m0; 1204 data->ni = ni; 1205 data->rate = rate; 1206 1207 /* XXX need to setup descriptor ourself */ 1208 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1209 1210 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1211 m0->m_pkthdr.len, rate); 1212 1213 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1214 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1215 1216 return 0; 1217} 1218 1219static int 1220rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1221{ 1222 struct ieee80211vap *vap = ni->ni_vap; 1223 struct ifnet *ifp = sc->sc_ifp; 1224 struct ieee80211com *ic = ifp->if_l2com; 1225 struct rum_tx_data *data; 1226 struct ieee80211_frame *wh; 1227 const struct ieee80211_txparam *tp; 1228 struct ieee80211_key *k; 1229 uint32_t flags = 0; 1230 uint16_t dur; 1231 int error, rate; 1232 1233 RUM_LOCK_ASSERT(sc, MA_OWNED); 1234 1235 wh = mtod(m0, struct ieee80211_frame *); 1236 1237 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1238 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1239 rate = tp->mcastrate; 1240 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1241 rate = tp->ucastrate; 1242 else 1243 rate = ni->ni_txrate; 1244 1245 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1246 k = ieee80211_crypto_encap(ni, m0); 1247 if (k == NULL) { 1248 m_freem(m0); 1249 return ENOBUFS; 1250 } 1251 1252 /* packet header may have moved, reset our local pointer */ 1253 wh = mtod(m0, struct ieee80211_frame *); 1254 } 1255 1256 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1257 int prot = IEEE80211_PROT_NONE; 1258 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1259 prot = IEEE80211_PROT_RTSCTS; 1260 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1261 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1262 prot = ic->ic_protmode; 1263 if (prot != IEEE80211_PROT_NONE) { 1264 error = rum_sendprot(sc, m0, ni, prot, rate); 1265 if (error || sc->tx_nfree == 0) { 1266 m_freem(m0); 1267 return ENOBUFS; 1268 } 1269 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1270 } 1271 } 1272 1273 data = STAILQ_FIRST(&sc->tx_free); 1274 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1275 sc->tx_nfree--; 1276 1277 data->m = m0; 1278 data->ni = ni; 1279 data->rate = rate; 1280 1281 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1282 flags |= RT2573_TX_NEED_ACK; 1283 flags |= RT2573_TX_MORE_FRAG; 1284 1285 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1286 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1287 USETW(wh->i_dur, dur); 1288 } 1289 1290 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1291 1292 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1293 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1294 1295 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1296 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1297 1298 return 0; 1299} 1300 1301static void 1302rum_start(struct ifnet *ifp) 1303{ 1304 struct rum_softc *sc = ifp->if_softc; 1305 struct ieee80211_node *ni; 1306 struct mbuf *m; 1307 1308 RUM_LOCK(sc); 1309 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1310 RUM_UNLOCK(sc); 1311 return; 1312 } 1313 for (;;) { 1314 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1315 if (m == NULL) 1316 break; 1317 if (sc->tx_nfree < RUM_TX_MINFREE) { 1318 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1319 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1320 break; 1321 } 1322 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1323 if (rum_tx_data(sc, m, ni) != 0) { 1324 ieee80211_free_node(ni); 1325 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1326 break; 1327 } 1328 } 1329 RUM_UNLOCK(sc); 1330} 1331 1332static int 1333rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1334{ 1335 struct rum_softc *sc = ifp->if_softc; 1336 struct ieee80211com *ic = ifp->if_l2com; 1337 struct ifreq *ifr = (struct ifreq *) data; 1338 int error; 1339 int startall = 0; 1340 1341 RUM_LOCK(sc); 1342 error = sc->sc_detached ? ENXIO : 0; 1343 RUM_UNLOCK(sc); 1344 if (error) 1345 return (error); 1346 1347 switch (cmd) { 1348 case SIOCSIFFLAGS: 1349 RUM_LOCK(sc); 1350 if (ifp->if_flags & IFF_UP) { 1351 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1352 rum_init_locked(sc); 1353 startall = 1; 1354 } else 1355 rum_setpromisc(sc); 1356 } else { 1357 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1358 rum_stop(sc); 1359 } 1360 RUM_UNLOCK(sc); 1361 if (startall) 1362 ieee80211_start_all(ic); 1363 break; 1364 case SIOCGIFMEDIA: 1365 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1366 break; 1367 case SIOCGIFADDR: 1368 error = ether_ioctl(ifp, cmd, data); 1369 break; 1370 default: 1371 error = EINVAL; 1372 break; 1373 } 1374 return error; 1375} 1376 1377static void 1378rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1379{ 1380 struct usb_device_request req; 1381 usb_error_t error; 1382 1383 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1384 req.bRequest = RT2573_READ_EEPROM; 1385 USETW(req.wValue, 0); 1386 USETW(req.wIndex, addr); 1387 USETW(req.wLength, len); 1388 1389 error = rum_do_request(sc, &req, buf); 1390 if (error != 0) { 1391 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1392 usbd_errstr(error)); 1393 } 1394} 1395 1396static uint32_t 1397rum_read(struct rum_softc *sc, uint16_t reg) 1398{ 1399 uint32_t val; 1400 1401 rum_read_multi(sc, reg, &val, sizeof val); 1402 1403 return le32toh(val); 1404} 1405 1406static void 1407rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1408{ 1409 struct usb_device_request req; 1410 usb_error_t error; 1411 1412 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1413 req.bRequest = RT2573_READ_MULTI_MAC; 1414 USETW(req.wValue, 0); 1415 USETW(req.wIndex, reg); 1416 USETW(req.wLength, len); 1417 1418 error = rum_do_request(sc, &req, buf); 1419 if (error != 0) { 1420 device_printf(sc->sc_dev, 1421 "could not multi read MAC register: %s\n", 1422 usbd_errstr(error)); 1423 } 1424} 1425 1426static usb_error_t 1427rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1428{ 1429 uint32_t tmp = htole32(val); 1430 1431 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1432} 1433 1434static usb_error_t 1435rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1436{ 1437 struct usb_device_request req; 1438 usb_error_t error; 1439 size_t offset; 1440 1441 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1442 req.bRequest = RT2573_WRITE_MULTI_MAC; 1443 USETW(req.wValue, 0); 1444 1445 /* write at most 64 bytes at a time */ 1446 for (offset = 0; offset < len; offset += 64) { 1447 USETW(req.wIndex, reg + offset); 1448 USETW(req.wLength, MIN(len - offset, 64)); 1449 1450 error = rum_do_request(sc, &req, (char *)buf + offset); 1451 if (error != 0) { 1452 device_printf(sc->sc_dev, 1453 "could not multi write MAC register: %s\n", 1454 usbd_errstr(error)); 1455 return (error); 1456 } 1457 } 1458 1459 return (USB_ERR_NORMAL_COMPLETION); 1460} 1461 1462static void 1463rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1464{ 1465 uint32_t tmp; 1466 int ntries; 1467 1468 DPRINTFN(2, "reg=0x%08x\n", reg); 1469 1470 for (ntries = 0; ntries < 100; ntries++) { 1471 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1472 break; 1473 if (rum_pause(sc, hz / 100)) 1474 break; 1475 } 1476 if (ntries == 100) { 1477 device_printf(sc->sc_dev, "could not write to BBP\n"); 1478 return; 1479 } 1480 1481 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1482 rum_write(sc, RT2573_PHY_CSR3, tmp); 1483} 1484 1485static uint8_t 1486rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1487{ 1488 uint32_t val; 1489 int ntries; 1490 1491 DPRINTFN(2, "reg=0x%08x\n", reg); 1492 1493 for (ntries = 0; ntries < 100; ntries++) { 1494 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1495 break; 1496 if (rum_pause(sc, hz / 100)) 1497 break; 1498 } 1499 if (ntries == 100) { 1500 device_printf(sc->sc_dev, "could not read BBP\n"); 1501 return 0; 1502 } 1503 1504 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1505 rum_write(sc, RT2573_PHY_CSR3, val); 1506 1507 for (ntries = 0; ntries < 100; ntries++) { 1508 val = rum_read(sc, RT2573_PHY_CSR3); 1509 if (!(val & RT2573_BBP_BUSY)) 1510 return val & 0xff; 1511 if (rum_pause(sc, hz / 100)) 1512 break; 1513 } 1514 1515 device_printf(sc->sc_dev, "could not read BBP\n"); 1516 return 0; 1517} 1518 1519static void 1520rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1521{ 1522 uint32_t tmp; 1523 int ntries; 1524 1525 for (ntries = 0; ntries < 100; ntries++) { 1526 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1527 break; 1528 if (rum_pause(sc, hz / 100)) 1529 break; 1530 } 1531 if (ntries == 100) { 1532 device_printf(sc->sc_dev, "could not write to RF\n"); 1533 return; 1534 } 1535 1536 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1537 (reg & 3); 1538 rum_write(sc, RT2573_PHY_CSR4, tmp); 1539 1540 /* remember last written value in sc */ 1541 sc->rf_regs[reg] = val; 1542 1543 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1544} 1545 1546static void 1547rum_select_antenna(struct rum_softc *sc) 1548{ 1549 uint8_t bbp4, bbp77; 1550 uint32_t tmp; 1551 1552 bbp4 = rum_bbp_read(sc, 4); 1553 bbp77 = rum_bbp_read(sc, 77); 1554 1555 /* TBD */ 1556 1557 /* make sure Rx is disabled before switching antenna */ 1558 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1559 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1560 1561 rum_bbp_write(sc, 4, bbp4); 1562 rum_bbp_write(sc, 77, bbp77); 1563 1564 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1565} 1566 1567/* 1568 * Enable multi-rate retries for frames sent at OFDM rates. 1569 * In 802.11b/g mode, allow fallback to CCK rates. 1570 */ 1571static void 1572rum_enable_mrr(struct rum_softc *sc) 1573{ 1574 struct ifnet *ifp = sc->sc_ifp; 1575 struct ieee80211com *ic = ifp->if_l2com; 1576 uint32_t tmp; 1577 1578 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1579 1580 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1581 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1582 tmp |= RT2573_MRR_CCK_FALLBACK; 1583 tmp |= RT2573_MRR_ENABLED; 1584 1585 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1586} 1587 1588static void 1589rum_set_txpreamble(struct rum_softc *sc) 1590{ 1591 struct ifnet *ifp = sc->sc_ifp; 1592 struct ieee80211com *ic = ifp->if_l2com; 1593 uint32_t tmp; 1594 1595 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1596 1597 tmp &= ~RT2573_SHORT_PREAMBLE; 1598 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1599 tmp |= RT2573_SHORT_PREAMBLE; 1600 1601 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1602} 1603 1604static void 1605rum_set_basicrates(struct rum_softc *sc) 1606{ 1607 struct ifnet *ifp = sc->sc_ifp; 1608 struct ieee80211com *ic = ifp->if_l2com; 1609 1610 /* update basic rate set */ 1611 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1612 /* 11b basic rates: 1, 2Mbps */ 1613 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1614 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1615 /* 11a basic rates: 6, 12, 24Mbps */ 1616 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1617 } else { 1618 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1619 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1620 } 1621} 1622 1623/* 1624 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1625 * driver. 1626 */ 1627static void 1628rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1629{ 1630 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1631 uint32_t tmp; 1632 1633 /* update all BBP registers that depend on the band */ 1634 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1635 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1636 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1637 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1638 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1639 } 1640 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1641 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1642 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1643 } 1644 1645 sc->bbp17 = bbp17; 1646 rum_bbp_write(sc, 17, bbp17); 1647 rum_bbp_write(sc, 96, bbp96); 1648 rum_bbp_write(sc, 104, bbp104); 1649 1650 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1651 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1652 rum_bbp_write(sc, 75, 0x80); 1653 rum_bbp_write(sc, 86, 0x80); 1654 rum_bbp_write(sc, 88, 0x80); 1655 } 1656 1657 rum_bbp_write(sc, 35, bbp35); 1658 rum_bbp_write(sc, 97, bbp97); 1659 rum_bbp_write(sc, 98, bbp98); 1660 1661 tmp = rum_read(sc, RT2573_PHY_CSR0); 1662 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1663 if (IEEE80211_IS_CHAN_2GHZ(c)) 1664 tmp |= RT2573_PA_PE_2GHZ; 1665 else 1666 tmp |= RT2573_PA_PE_5GHZ; 1667 rum_write(sc, RT2573_PHY_CSR0, tmp); 1668} 1669 1670static void 1671rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1672{ 1673 struct ifnet *ifp = sc->sc_ifp; 1674 struct ieee80211com *ic = ifp->if_l2com; 1675 const struct rfprog *rfprog; 1676 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1677 int8_t power; 1678 int i, chan; 1679 1680 chan = ieee80211_chan2ieee(ic, c); 1681 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1682 return; 1683 1684 /* select the appropriate RF settings based on what EEPROM says */ 1685 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1686 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1687 1688 /* find the settings for this channel (we know it exists) */ 1689 for (i = 0; rfprog[i].chan != chan; i++); 1690 1691 power = sc->txpow[i]; 1692 if (power < 0) { 1693 bbp94 += power; 1694 power = 0; 1695 } else if (power > 31) { 1696 bbp94 += power - 31; 1697 power = 31; 1698 } 1699 1700 /* 1701 * If we are switching from the 2GHz band to the 5GHz band or 1702 * vice-versa, BBP registers need to be reprogrammed. 1703 */ 1704 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1705 rum_select_band(sc, c); 1706 rum_select_antenna(sc); 1707 } 1708 ic->ic_curchan = c; 1709 1710 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1711 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1712 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1713 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1714 1715 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1716 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1717 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1718 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1719 1720 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1721 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1722 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1723 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1724 1725 rum_pause(sc, hz / 100); 1726 1727 /* enable smart mode for MIMO-capable RFs */ 1728 bbp3 = rum_bbp_read(sc, 3); 1729 1730 bbp3 &= ~RT2573_SMART_MODE; 1731 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1732 bbp3 |= RT2573_SMART_MODE; 1733 1734 rum_bbp_write(sc, 3, bbp3); 1735 1736 if (bbp94 != RT2573_BBPR94_DEFAULT) 1737 rum_bbp_write(sc, 94, bbp94); 1738 1739 /* give the chip some extra time to do the switchover */ 1740 rum_pause(sc, hz / 100); 1741} 1742 1743/* 1744 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1745 * and HostAP operating modes. 1746 */ 1747static void 1748rum_enable_tsf_sync(struct rum_softc *sc) 1749{ 1750 struct ifnet *ifp = sc->sc_ifp; 1751 struct ieee80211com *ic = ifp->if_l2com; 1752 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1753 uint32_t tmp; 1754 1755 if (vap->iv_opmode != IEEE80211_M_STA) { 1756 /* 1757 * Change default 16ms TBTT adjustment to 8ms. 1758 * Must be done before enabling beacon generation. 1759 */ 1760 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1761 } 1762 1763 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1764 1765 /* set beacon interval (in 1/16ms unit) */ 1766 tmp |= vap->iv_bss->ni_intval * 16; 1767 1768 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1769 if (vap->iv_opmode == IEEE80211_M_STA) 1770 tmp |= RT2573_TSF_MODE(1); 1771 else 1772 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1773 1774 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1775} 1776 1777static void 1778rum_enable_tsf(struct rum_softc *sc) 1779{ 1780 rum_write(sc, RT2573_TXRX_CSR9, 1781 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1782 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1783} 1784 1785static void 1786rum_update_slot(struct ifnet *ifp) 1787{ 1788 struct rum_softc *sc = ifp->if_softc; 1789 struct ieee80211com *ic = ifp->if_l2com; 1790 uint8_t slottime; 1791 uint32_t tmp; 1792 1793 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1794 1795 tmp = rum_read(sc, RT2573_MAC_CSR9); 1796 tmp = (tmp & ~0xff) | slottime; 1797 rum_write(sc, RT2573_MAC_CSR9, tmp); 1798 1799 DPRINTF("setting slot time to %uus\n", slottime); 1800} 1801 1802static void 1803rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1804{ 1805 uint32_t tmp; 1806 1807 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1808 rum_write(sc, RT2573_MAC_CSR4, tmp); 1809 1810 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1811 rum_write(sc, RT2573_MAC_CSR5, tmp); 1812} 1813 1814static void 1815rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1816{ 1817 uint32_t tmp; 1818 1819 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1820 rum_write(sc, RT2573_MAC_CSR2, tmp); 1821 1822 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1823 rum_write(sc, RT2573_MAC_CSR3, tmp); 1824} 1825 1826static void 1827rum_setpromisc(struct rum_softc *sc) 1828{ 1829 struct ifnet *ifp = sc->sc_ifp; 1830 uint32_t tmp; 1831 1832 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1833 1834 tmp &= ~RT2573_DROP_NOT_TO_ME; 1835 if (!(ifp->if_flags & IFF_PROMISC)) 1836 tmp |= RT2573_DROP_NOT_TO_ME; 1837 1838 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1839 1840 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1841 "entering" : "leaving"); 1842} 1843 1844static void 1845rum_update_promisc(struct ifnet *ifp) 1846{ 1847 struct rum_softc *sc = ifp->if_softc; 1848 1849 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1850 return; 1851 1852 RUM_LOCK(sc); 1853 rum_setpromisc(sc); 1854 RUM_UNLOCK(sc); 1855} 1856 1857static void 1858rum_update_mcast(struct ifnet *ifp) 1859{ 1860 static int warning_printed; 1861 1862 if (warning_printed == 0) { 1863 if_printf(ifp, "need to implement %s\n", __func__); 1864 warning_printed = 1; 1865 } 1866} 1867 1868static const char * 1869rum_get_rf(int rev) 1870{ 1871 switch (rev) { 1872 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1873 case RT2573_RF_2528: return "RT2528"; 1874 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1875 case RT2573_RF_5226: return "RT5226"; 1876 default: return "unknown"; 1877 } 1878} 1879 1880static void 1881rum_read_eeprom(struct rum_softc *sc) 1882{ 1883 uint16_t val; 1884#ifdef RUM_DEBUG 1885 int i; 1886#endif 1887 1888 /* read MAC address */ 1889 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1890 1891 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1892 val = le16toh(val); 1893 sc->rf_rev = (val >> 11) & 0x1f; 1894 sc->hw_radio = (val >> 10) & 0x1; 1895 sc->rx_ant = (val >> 4) & 0x3; 1896 sc->tx_ant = (val >> 2) & 0x3; 1897 sc->nb_ant = val & 0x3; 1898 1899 DPRINTF("RF revision=%d\n", sc->rf_rev); 1900 1901 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1902 val = le16toh(val); 1903 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1904 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1905 1906 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1907 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1908 1909 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1910 val = le16toh(val); 1911 if ((val & 0xff) != 0xff) 1912 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1913 1914 /* Only [-10, 10] is valid */ 1915 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1916 sc->rssi_2ghz_corr = 0; 1917 1918 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1919 val = le16toh(val); 1920 if ((val & 0xff) != 0xff) 1921 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1922 1923 /* Only [-10, 10] is valid */ 1924 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1925 sc->rssi_5ghz_corr = 0; 1926 1927 if (sc->ext_2ghz_lna) 1928 sc->rssi_2ghz_corr -= 14; 1929 if (sc->ext_5ghz_lna) 1930 sc->rssi_5ghz_corr -= 14; 1931 1932 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1933 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1934 1935 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1936 val = le16toh(val); 1937 if ((val & 0xff) != 0xff) 1938 sc->rffreq = val & 0xff; 1939 1940 DPRINTF("RF freq=%d\n", sc->rffreq); 1941 1942 /* read Tx power for all a/b/g channels */ 1943 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1944 /* XXX default Tx power for 802.11a channels */ 1945 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1946#ifdef RUM_DEBUG 1947 for (i = 0; i < 14; i++) 1948 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1949#endif 1950 1951 /* read default values for BBP registers */ 1952 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1953#ifdef RUM_DEBUG 1954 for (i = 0; i < 14; i++) { 1955 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1956 continue; 1957 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1958 sc->bbp_prom[i].val); 1959 } 1960#endif 1961} 1962 1963static int 1964rum_bbp_init(struct rum_softc *sc) 1965{ 1966 int i, ntries; 1967 1968 /* wait for BBP to be ready */ 1969 for (ntries = 0; ntries < 100; ntries++) { 1970 const uint8_t val = rum_bbp_read(sc, 0); 1971 if (val != 0 && val != 0xff) 1972 break; 1973 if (rum_pause(sc, hz / 100)) 1974 break; 1975 } 1976 if (ntries == 100) { 1977 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1978 return EIO; 1979 } 1980 1981 /* initialize BBP registers to default values */ 1982 for (i = 0; i < N(rum_def_bbp); i++) 1983 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1984 1985 /* write vendor-specific BBP values (from EEPROM) */ 1986 for (i = 0; i < 16; i++) { 1987 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1988 continue; 1989 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1990 } 1991 1992 return 0; 1993} 1994 1995static void 1996rum_init_locked(struct rum_softc *sc) 1997{ 1998 struct ifnet *ifp = sc->sc_ifp; 1999 struct ieee80211com *ic = ifp->if_l2com; 2000 uint32_t tmp; 2001 usb_error_t error; 2002 int i, ntries; 2003 2004 RUM_LOCK_ASSERT(sc, MA_OWNED); 2005 2006 rum_stop(sc); 2007 2008 /* initialize MAC registers to default values */ 2009 for (i = 0; i < N(rum_def_mac); i++) 2010 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2011 2012 /* set host ready */ 2013 rum_write(sc, RT2573_MAC_CSR1, 3); 2014 rum_write(sc, RT2573_MAC_CSR1, 0); 2015 2016 /* wait for BBP/RF to wakeup */ 2017 for (ntries = 0; ntries < 100; ntries++) { 2018 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2019 break; 2020 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2021 if (rum_pause(sc, hz / 100)) 2022 break; 2023 } 2024 if (ntries == 100) { 2025 device_printf(sc->sc_dev, 2026 "timeout waiting for BBP/RF to wakeup\n"); 2027 goto fail; 2028 } 2029 2030 if ((error = rum_bbp_init(sc)) != 0) 2031 goto fail; 2032 2033 /* select default channel */ 2034 rum_select_band(sc, ic->ic_curchan); 2035 rum_select_antenna(sc); 2036 rum_set_chan(sc, ic->ic_curchan); 2037 2038 /* clear STA registers */ 2039 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2040 2041 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2042 2043 /* initialize ASIC */ 2044 rum_write(sc, RT2573_MAC_CSR1, 4); 2045 2046 /* 2047 * Allocate Tx and Rx xfer queues. 2048 */ 2049 rum_setup_tx_list(sc); 2050 2051 /* update Rx filter */ 2052 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2053 2054 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2055 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2056 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2057 RT2573_DROP_ACKCTS; 2058 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2059 tmp |= RT2573_DROP_TODS; 2060 if (!(ifp->if_flags & IFF_PROMISC)) 2061 tmp |= RT2573_DROP_NOT_TO_ME; 2062 } 2063 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2064 2065 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2066 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2067 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2068 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2069 return; 2070 2071fail: rum_stop(sc); 2072#undef N 2073} 2074 2075static void 2076rum_init(void *priv) 2077{ 2078 struct rum_softc *sc = priv; 2079 struct ifnet *ifp = sc->sc_ifp; 2080 struct ieee80211com *ic = ifp->if_l2com; 2081 2082 RUM_LOCK(sc); 2083 rum_init_locked(sc); 2084 RUM_UNLOCK(sc); 2085 2086 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2087 ieee80211_start_all(ic); /* start all vap's */ 2088} 2089 2090static void 2091rum_stop(struct rum_softc *sc) 2092{ 2093 struct ifnet *ifp = sc->sc_ifp; 2094 uint32_t tmp; 2095 2096 RUM_LOCK_ASSERT(sc, MA_OWNED); 2097 2098 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2099 2100 RUM_UNLOCK(sc); 2101 2102 /* 2103 * Drain the USB transfers, if not already drained: 2104 */ 2105 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2106 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2107 2108 RUM_LOCK(sc); 2109 2110 rum_unsetup_tx_list(sc); 2111 2112 /* disable Rx */ 2113 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2114 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2115 2116 /* reset ASIC */ 2117 rum_write(sc, RT2573_MAC_CSR1, 3); 2118 rum_write(sc, RT2573_MAC_CSR1, 0); 2119} 2120 2121static void 2122rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2123{ 2124 struct usb_device_request req; 2125 uint16_t reg = RT2573_MCU_CODE_BASE; 2126 usb_error_t err; 2127 2128 /* copy firmware image into NIC */ 2129 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2130 err = rum_write(sc, reg, UGETDW(ucode)); 2131 if (err) { 2132 /* firmware already loaded ? */ 2133 device_printf(sc->sc_dev, "Firmware load " 2134 "failure! (ignored)\n"); 2135 break; 2136 } 2137 } 2138 2139 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2140 req.bRequest = RT2573_MCU_CNTL; 2141 USETW(req.wValue, RT2573_MCU_RUN); 2142 USETW(req.wIndex, 0); 2143 USETW(req.wLength, 0); 2144 2145 err = rum_do_request(sc, &req, NULL); 2146 if (err != 0) { 2147 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2148 usbd_errstr(err)); 2149 } 2150 2151 /* give the chip some time to boot */ 2152 rum_pause(sc, hz / 8); 2153} 2154 2155static void 2156rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2157{ 2158 struct ieee80211com *ic = vap->iv_ic; 2159 const struct ieee80211_txparam *tp; 2160 struct rum_tx_desc desc; 2161 struct mbuf *m0; 2162 2163 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2164 return; 2165 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2166 return; 2167 2168 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2169 if (m0 == NULL) 2170 return; 2171 2172 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2173 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2174 m0->m_pkthdr.len, tp->mgmtrate); 2175 2176 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2177 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2178 2179 /* copy beacon header and payload into NIC memory */ 2180 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2181 m0->m_pkthdr.len); 2182 2183 m_freem(m0); 2184} 2185 2186static int 2187rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2188 const struct ieee80211_bpf_params *params) 2189{ 2190 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2191 struct rum_softc *sc = ifp->if_softc; 2192 2193 RUM_LOCK(sc); 2194 /* prevent management frames from being sent if we're not ready */ 2195 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2196 RUM_UNLOCK(sc); 2197 m_freem(m); 2198 ieee80211_free_node(ni); 2199 return ENETDOWN; 2200 } 2201 if (sc->tx_nfree < RUM_TX_MINFREE) { 2202 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2203 RUM_UNLOCK(sc); 2204 m_freem(m); 2205 ieee80211_free_node(ni); 2206 return EIO; 2207 } 2208 2209 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 2210 2211 if (params == NULL) { 2212 /* 2213 * Legacy path; interpret frame contents to decide 2214 * precisely how to send the frame. 2215 */ 2216 if (rum_tx_mgt(sc, m, ni) != 0) 2217 goto bad; 2218 } else { 2219 /* 2220 * Caller supplied explicit parameters to use in 2221 * sending the frame. 2222 */ 2223 if (rum_tx_raw(sc, m, ni, params) != 0) 2224 goto bad; 2225 } 2226 RUM_UNLOCK(sc); 2227 2228 return 0; 2229bad: 2230 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 2231 RUM_UNLOCK(sc); 2232 ieee80211_free_node(ni); 2233 return EIO; 2234} 2235 2236static void 2237rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2238{ 2239 struct ieee80211vap *vap = ni->ni_vap; 2240 struct rum_vap *rvp = RUM_VAP(vap); 2241 2242 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2243 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2244 2245 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2246} 2247 2248static void 2249rum_ratectl_timeout(void *arg) 2250{ 2251 struct rum_vap *rvp = arg; 2252 struct ieee80211vap *vap = &rvp->vap; 2253 struct ieee80211com *ic = vap->iv_ic; 2254 2255 ieee80211_runtask(ic, &rvp->ratectl_task); 2256} 2257 2258static void 2259rum_ratectl_task(void *arg, int pending) 2260{ 2261 struct rum_vap *rvp = arg; 2262 struct ieee80211vap *vap = &rvp->vap; 2263 struct ieee80211com *ic = vap->iv_ic; 2264 struct ifnet *ifp = ic->ic_ifp; 2265 struct rum_softc *sc = ifp->if_softc; 2266 struct ieee80211_node *ni; 2267 int ok, fail; 2268 int sum, retrycnt; 2269 2270 RUM_LOCK(sc); 2271 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2272 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2273 2274 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2275 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2276 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2277 sum = ok+fail; 2278 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2279 2280 ni = ieee80211_ref_node(vap->iv_bss); 2281 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2282 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2283 ieee80211_free_node(ni); 2284 2285 if_inc_counter(ifp, IFCOUNTER_OERRORS, fail); /* count TX retry-fail as Tx errors */ 2286 2287 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2288 RUM_UNLOCK(sc); 2289} 2290 2291static void 2292rum_scan_start(struct ieee80211com *ic) 2293{ 2294 struct ifnet *ifp = ic->ic_ifp; 2295 struct rum_softc *sc = ifp->if_softc; 2296 uint32_t tmp; 2297 2298 RUM_LOCK(sc); 2299 /* abort TSF synchronization */ 2300 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2301 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2302 rum_set_bssid(sc, ifp->if_broadcastaddr); 2303 RUM_UNLOCK(sc); 2304 2305} 2306 2307static void 2308rum_scan_end(struct ieee80211com *ic) 2309{ 2310 struct rum_softc *sc = ic->ic_ifp->if_softc; 2311 2312 RUM_LOCK(sc); 2313 rum_enable_tsf_sync(sc); 2314 rum_set_bssid(sc, sc->sc_bssid); 2315 RUM_UNLOCK(sc); 2316 2317} 2318 2319static void 2320rum_set_channel(struct ieee80211com *ic) 2321{ 2322 struct rum_softc *sc = ic->ic_ifp->if_softc; 2323 2324 RUM_LOCK(sc); 2325 rum_set_chan(sc, ic->ic_curchan); 2326 RUM_UNLOCK(sc); 2327} 2328 2329static int 2330rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2331{ 2332 struct ifnet *ifp = sc->sc_ifp; 2333 struct ieee80211com *ic = ifp->if_l2com; 2334 int lna, agc, rssi; 2335 2336 lna = (raw >> 5) & 0x3; 2337 agc = raw & 0x1f; 2338 2339 if (lna == 0) { 2340 /* 2341 * No RSSI mapping 2342 * 2343 * NB: Since RSSI is relative to noise floor, -1 is 2344 * adequate for caller to know error happened. 2345 */ 2346 return -1; 2347 } 2348 2349 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2350 2351 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2352 rssi += sc->rssi_2ghz_corr; 2353 2354 if (lna == 1) 2355 rssi -= 64; 2356 else if (lna == 2) 2357 rssi -= 74; 2358 else if (lna == 3) 2359 rssi -= 90; 2360 } else { 2361 rssi += sc->rssi_5ghz_corr; 2362 2363 if (!sc->ext_5ghz_lna && lna != 1) 2364 rssi += 4; 2365 2366 if (lna == 1) 2367 rssi -= 64; 2368 else if (lna == 2) 2369 rssi -= 86; 2370 else if (lna == 3) 2371 rssi -= 100; 2372 } 2373 return rssi; 2374} 2375 2376static int 2377rum_pause(struct rum_softc *sc, int timeout) 2378{ 2379 2380 usb_pause_mtx(&sc->sc_mtx, timeout); 2381 return (0); 2382} 2383 2384static device_method_t rum_methods[] = { 2385 /* Device interface */ 2386 DEVMETHOD(device_probe, rum_match), 2387 DEVMETHOD(device_attach, rum_attach), 2388 DEVMETHOD(device_detach, rum_detach), 2389 DEVMETHOD_END 2390}; 2391 2392static driver_t rum_driver = { 2393 .name = "rum", 2394 .methods = rum_methods, 2395 .size = sizeof(struct rum_softc), 2396}; 2397 2398static devclass_t rum_devclass; 2399 2400DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2401MODULE_DEPEND(rum, wlan, 1, 1, 1); 2402MODULE_DEPEND(rum, usb, 1, 1, 1); 2403MODULE_VERSION(rum, 1); 2404