if_rum.c revision 262007
1/* $FreeBSD: stable/10/sys/dev/usb/wlan/if_rum.c 262007 2014-02-17 01:36:53Z kevlo $ */ 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: stable/10/sys/dev/usb/wlan/if_rum.c 262007 2014-02-17 01:36:53Z kevlo $"); 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_arp.h> 51#include <net/ethernet.h> 52#include <net/if_dl.h> 53#include <net/if_media.h> 54#include <net/if_types.h> 55 56#ifdef INET 57#include <netinet/in.h> 58#include <netinet/in_systm.h> 59#include <netinet/in_var.h> 60#include <netinet/if_ether.h> 61#include <netinet/ip.h> 62#endif 63 64#include <net80211/ieee80211_var.h> 65#include <net80211/ieee80211_regdomain.h> 66#include <net80211/ieee80211_radiotap.h> 67#include <net80211/ieee80211_ratectl.h> 68 69#include <dev/usb/usb.h> 70#include <dev/usb/usbdi.h> 71#include "usbdevs.h" 72 73#define USB_DEBUG_VAR rum_debug 74#include <dev/usb/usb_debug.h> 75 76#include <dev/usb/wlan/if_rumreg.h> 77#include <dev/usb/wlan/if_rumvar.h> 78#include <dev/usb/wlan/if_rumfw.h> 79 80#ifdef USB_DEBUG 81static int rum_debug = 0; 82 83static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 84SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 85 "Debug level"); 86#endif 87 88#define N(a) ((int)(sizeof (a) / sizeof ((a)[0]))) 89 90static const STRUCT_USB_HOST_ID rum_devs[] = { 91#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 92 RUM_DEV(ABOCOM, HWU54DM), 93 RUM_DEV(ABOCOM, RT2573_2), 94 RUM_DEV(ABOCOM, RT2573_3), 95 RUM_DEV(ABOCOM, RT2573_4), 96 RUM_DEV(ABOCOM, WUG2700), 97 RUM_DEV(AMIT, CGWLUSB2GO), 98 RUM_DEV(ASUS, RT2573_1), 99 RUM_DEV(ASUS, RT2573_2), 100 RUM_DEV(BELKIN, F5D7050A), 101 RUM_DEV(BELKIN, F5D9050V3), 102 RUM_DEV(CISCOLINKSYS, WUSB54GC), 103 RUM_DEV(CISCOLINKSYS, WUSB54GR), 104 RUM_DEV(CONCEPTRONIC2, C54RU2), 105 RUM_DEV(COREGA, CGWLUSB2GL), 106 RUM_DEV(COREGA, CGWLUSB2GPX), 107 RUM_DEV(DICKSMITH, CWD854F), 108 RUM_DEV(DICKSMITH, RT2573), 109 RUM_DEV(EDIMAX, EW7318USG), 110 RUM_DEV(DLINK2, DWLG122C1), 111 RUM_DEV(DLINK2, WUA1340), 112 RUM_DEV(DLINK2, DWA111), 113 RUM_DEV(DLINK2, DWA110), 114 RUM_DEV(GIGABYTE, GNWB01GS), 115 RUM_DEV(GIGABYTE, GNWI05GS), 116 RUM_DEV(GIGASET, RT2573), 117 RUM_DEV(GOODWAY, RT2573), 118 RUM_DEV(GUILLEMOT, HWGUSB254LB), 119 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 120 RUM_DEV(HUAWEI3COM, WUB320G), 121 RUM_DEV(MELCO, G54HP), 122 RUM_DEV(MELCO, SG54HP), 123 RUM_DEV(MELCO, SG54HG), 124 RUM_DEV(MELCO, WLIUCG), 125 RUM_DEV(MELCO, WLRUCG), 126 RUM_DEV(MELCO, WLRUCGAOSS), 127 RUM_DEV(MSI, RT2573_1), 128 RUM_DEV(MSI, RT2573_2), 129 RUM_DEV(MSI, RT2573_3), 130 RUM_DEV(MSI, RT2573_4), 131 RUM_DEV(NOVATECH, RT2573), 132 RUM_DEV(PLANEX2, GWUS54HP), 133 RUM_DEV(PLANEX2, GWUS54MINI2), 134 RUM_DEV(PLANEX2, GWUSMM), 135 RUM_DEV(QCOM, RT2573), 136 RUM_DEV(QCOM, RT2573_2), 137 RUM_DEV(QCOM, RT2573_3), 138 RUM_DEV(RALINK, RT2573), 139 RUM_DEV(RALINK, RT2573_2), 140 RUM_DEV(RALINK, RT2671), 141 RUM_DEV(SITECOMEU, WL113R2), 142 RUM_DEV(SITECOMEU, WL172), 143 RUM_DEV(SPARKLAN, RT2573), 144 RUM_DEV(SURECOM, RT2573), 145#undef RUM_DEV 146}; 147 148static device_probe_t rum_match; 149static device_attach_t rum_attach; 150static device_detach_t rum_detach; 151 152static usb_callback_t rum_bulk_read_callback; 153static usb_callback_t rum_bulk_write_callback; 154 155static usb_error_t rum_do_request(struct rum_softc *sc, 156 struct usb_device_request *req, void *data); 157static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 158 const char [IFNAMSIZ], int, enum ieee80211_opmode, 159 int, const uint8_t [IEEE80211_ADDR_LEN], 160 const uint8_t [IEEE80211_ADDR_LEN]); 161static void rum_vap_delete(struct ieee80211vap *); 162static void rum_tx_free(struct rum_tx_data *, int); 163static void rum_setup_tx_list(struct rum_softc *); 164static void rum_unsetup_tx_list(struct rum_softc *); 165static int rum_newstate(struct ieee80211vap *, 166 enum ieee80211_state, int); 167static void rum_setup_tx_desc(struct rum_softc *, 168 struct rum_tx_desc *, uint32_t, uint16_t, int, 169 int); 170static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 171 struct ieee80211_node *); 172static int rum_tx_raw(struct rum_softc *, struct mbuf *, 173 struct ieee80211_node *, 174 const struct ieee80211_bpf_params *); 175static int rum_tx_data(struct rum_softc *, struct mbuf *, 176 struct ieee80211_node *); 177static void rum_start(struct ifnet *); 178static int rum_ioctl(struct ifnet *, u_long, caddr_t); 179static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 180 int); 181static uint32_t rum_read(struct rum_softc *, uint16_t); 182static void rum_read_multi(struct rum_softc *, uint16_t, void *, 183 int); 184static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 185static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 186 size_t); 187static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 188static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 189static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 190static void rum_select_antenna(struct rum_softc *); 191static void rum_enable_mrr(struct rum_softc *); 192static void rum_set_txpreamble(struct rum_softc *); 193static void rum_set_basicrates(struct rum_softc *); 194static void rum_select_band(struct rum_softc *, 195 struct ieee80211_channel *); 196static void rum_set_chan(struct rum_softc *, 197 struct ieee80211_channel *); 198static void rum_enable_tsf_sync(struct rum_softc *); 199static void rum_enable_tsf(struct rum_softc *); 200static void rum_update_slot(struct ifnet *); 201static void rum_set_bssid(struct rum_softc *, const uint8_t *); 202static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 203static void rum_update_mcast(struct ifnet *); 204static void rum_update_promisc(struct ifnet *); 205static void rum_setpromisc(struct rum_softc *); 206static const char *rum_get_rf(int); 207static void rum_read_eeprom(struct rum_softc *); 208static int rum_bbp_init(struct rum_softc *); 209static void rum_init_locked(struct rum_softc *); 210static void rum_init(void *); 211static void rum_stop(struct rum_softc *); 212static void rum_load_microcode(struct rum_softc *, const uint8_t *, 213 size_t); 214static void rum_prepare_beacon(struct rum_softc *, 215 struct ieee80211vap *); 216static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 217 const struct ieee80211_bpf_params *); 218static void rum_scan_start(struct ieee80211com *); 219static void rum_scan_end(struct ieee80211com *); 220static void rum_set_channel(struct ieee80211com *); 221static int rum_get_rssi(struct rum_softc *, uint8_t); 222static void rum_ratectl_start(struct rum_softc *, 223 struct ieee80211_node *); 224static void rum_ratectl_timeout(void *); 225static void rum_ratectl_task(void *, int); 226static int rum_pause(struct rum_softc *, int); 227 228static const struct { 229 uint32_t reg; 230 uint32_t val; 231} rum_def_mac[] = { 232 { RT2573_TXRX_CSR0, 0x025fb032 }, 233 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 234 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 235 { RT2573_TXRX_CSR3, 0x00858687 }, 236 { RT2573_TXRX_CSR7, 0x2e31353b }, 237 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 238 { RT2573_TXRX_CSR15, 0x0000000f }, 239 { RT2573_MAC_CSR6, 0x00000fff }, 240 { RT2573_MAC_CSR8, 0x016c030a }, 241 { RT2573_MAC_CSR10, 0x00000718 }, 242 { RT2573_MAC_CSR12, 0x00000004 }, 243 { RT2573_MAC_CSR13, 0x00007f00 }, 244 { RT2573_SEC_CSR0, 0x00000000 }, 245 { RT2573_SEC_CSR1, 0x00000000 }, 246 { RT2573_SEC_CSR5, 0x00000000 }, 247 { RT2573_PHY_CSR1, 0x000023b0 }, 248 { RT2573_PHY_CSR5, 0x00040a06 }, 249 { RT2573_PHY_CSR6, 0x00080606 }, 250 { RT2573_PHY_CSR7, 0x00000408 }, 251 { RT2573_AIFSN_CSR, 0x00002273 }, 252 { RT2573_CWMIN_CSR, 0x00002344 }, 253 { RT2573_CWMAX_CSR, 0x000034aa } 254}; 255 256static const struct { 257 uint8_t reg; 258 uint8_t val; 259} rum_def_bbp[] = { 260 { 3, 0x80 }, 261 { 15, 0x30 }, 262 { 17, 0x20 }, 263 { 21, 0xc8 }, 264 { 22, 0x38 }, 265 { 23, 0x06 }, 266 { 24, 0xfe }, 267 { 25, 0x0a }, 268 { 26, 0x0d }, 269 { 32, 0x0b }, 270 { 34, 0x12 }, 271 { 37, 0x07 }, 272 { 39, 0xf8 }, 273 { 41, 0x60 }, 274 { 53, 0x10 }, 275 { 54, 0x18 }, 276 { 60, 0x10 }, 277 { 61, 0x04 }, 278 { 62, 0x04 }, 279 { 75, 0xfe }, 280 { 86, 0xfe }, 281 { 88, 0xfe }, 282 { 90, 0x0f }, 283 { 99, 0x00 }, 284 { 102, 0x16 }, 285 { 107, 0x04 } 286}; 287 288static const struct rfprog { 289 uint8_t chan; 290 uint32_t r1, r2, r3, r4; 291} rum_rf5226[] = { 292 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 293 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 294 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 295 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 296 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 297 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 298 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 299 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 300 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 301 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 302 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 303 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 304 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 305 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 306 307 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 308 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 309 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 310 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 311 312 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 313 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 314 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 315 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 316 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 317 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 318 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 319 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 320 321 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 322 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 323 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 324 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 325 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 326 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 327 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 328 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 329 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 330 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 331 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 332 333 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 334 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 335 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 336 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 337 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 338}, rum_rf5225[] = { 339 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 340 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 341 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 342 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 343 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 344 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 345 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 346 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 347 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 348 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 349 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 350 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 351 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 352 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 353 354 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 355 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 356 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 357 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 358 359 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 360 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 361 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 362 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 363 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 364 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 365 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 366 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 367 368 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 369 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 370 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 371 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 372 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 373 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 374 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 375 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 376 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 377 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 378 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 379 380 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 381 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 382 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 383 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 384 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 385}; 386 387static const struct usb_config rum_config[RUM_N_TRANSFER] = { 388 [RUM_BULK_WR] = { 389 .type = UE_BULK, 390 .endpoint = UE_ADDR_ANY, 391 .direction = UE_DIR_OUT, 392 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 393 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 394 .callback = rum_bulk_write_callback, 395 .timeout = 5000, /* ms */ 396 }, 397 [RUM_BULK_RD] = { 398 .type = UE_BULK, 399 .endpoint = UE_ADDR_ANY, 400 .direction = UE_DIR_IN, 401 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 402 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 403 .callback = rum_bulk_read_callback, 404 }, 405}; 406 407static int 408rum_match(device_t self) 409{ 410 struct usb_attach_arg *uaa = device_get_ivars(self); 411 412 if (uaa->usb_mode != USB_MODE_HOST) 413 return (ENXIO); 414 if (uaa->info.bConfigIndex != 0) 415 return (ENXIO); 416 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 417 return (ENXIO); 418 419 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 420} 421 422static int 423rum_attach(device_t self) 424{ 425 struct usb_attach_arg *uaa = device_get_ivars(self); 426 struct rum_softc *sc = device_get_softc(self); 427 struct ieee80211com *ic; 428 struct ifnet *ifp; 429 uint8_t iface_index, bands; 430 uint32_t tmp; 431 int error, ntries; 432 433 device_set_usb_desc(self); 434 sc->sc_udev = uaa->device; 435 sc->sc_dev = self; 436 437 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 438 MTX_NETWORK_LOCK, MTX_DEF); 439 440 iface_index = RT2573_IFACE_INDEX; 441 error = usbd_transfer_setup(uaa->device, &iface_index, 442 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 443 if (error) { 444 device_printf(self, "could not allocate USB transfers, " 445 "err=%s\n", usbd_errstr(error)); 446 goto detach; 447 } 448 449 RUM_LOCK(sc); 450 /* retrieve RT2573 rev. no */ 451 for (ntries = 0; ntries < 100; ntries++) { 452 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 453 break; 454 if (rum_pause(sc, hz / 100)) 455 break; 456 } 457 if (ntries == 100) { 458 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 459 RUM_UNLOCK(sc); 460 goto detach; 461 } 462 463 /* retrieve MAC address and various other things from EEPROM */ 464 rum_read_eeprom(sc); 465 466 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 467 tmp, rum_get_rf(sc->rf_rev)); 468 469 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 470 RUM_UNLOCK(sc); 471 472 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 473 if (ifp == NULL) { 474 device_printf(sc->sc_dev, "can not if_alloc()\n"); 475 goto detach; 476 } 477 ic = ifp->if_l2com; 478 479 ifp->if_softc = sc; 480 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 481 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 482 ifp->if_init = rum_init; 483 ifp->if_ioctl = rum_ioctl; 484 ifp->if_start = rum_start; 485 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 486 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 487 IFQ_SET_READY(&ifp->if_snd); 488 489 ic->ic_ifp = ifp; 490 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 491 492 /* set device capabilities */ 493 ic->ic_caps = 494 IEEE80211_C_STA /* station mode supported */ 495 | IEEE80211_C_IBSS /* IBSS mode supported */ 496 | IEEE80211_C_MONITOR /* monitor mode supported */ 497 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 498 | IEEE80211_C_TXPMGT /* tx power management */ 499 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 500 | IEEE80211_C_SHSLOT /* short slot time supported */ 501 | IEEE80211_C_BGSCAN /* bg scanning supported */ 502 | IEEE80211_C_WPA /* 802.11i */ 503 ; 504 505 bands = 0; 506 setbit(&bands, IEEE80211_MODE_11B); 507 setbit(&bands, IEEE80211_MODE_11G); 508 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 509 setbit(&bands, IEEE80211_MODE_11A); 510 ieee80211_init_channels(ic, NULL, &bands); 511 512 ieee80211_ifattach(ic, sc->sc_bssid); 513 ic->ic_update_promisc = rum_update_promisc; 514 ic->ic_raw_xmit = rum_raw_xmit; 515 ic->ic_scan_start = rum_scan_start; 516 ic->ic_scan_end = rum_scan_end; 517 ic->ic_set_channel = rum_set_channel; 518 519 ic->ic_vap_create = rum_vap_create; 520 ic->ic_vap_delete = rum_vap_delete; 521 ic->ic_update_mcast = rum_update_mcast; 522 523 ieee80211_radiotap_attach(ic, 524 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 525 RT2573_TX_RADIOTAP_PRESENT, 526 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 527 RT2573_RX_RADIOTAP_PRESENT); 528 529 if (bootverbose) 530 ieee80211_announce(ic); 531 532 return (0); 533 534detach: 535 rum_detach(self); 536 return (ENXIO); /* failure */ 537} 538 539static int 540rum_detach(device_t self) 541{ 542 struct rum_softc *sc = device_get_softc(self); 543 struct ifnet *ifp = sc->sc_ifp; 544 struct ieee80211com *ic; 545 546 /* Prevent further ioctls */ 547 RUM_LOCK(sc); 548 sc->sc_detached = 1; 549 RUM_UNLOCK(sc); 550 551 /* stop all USB transfers */ 552 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 553 554 /* free TX list, if any */ 555 RUM_LOCK(sc); 556 rum_unsetup_tx_list(sc); 557 RUM_UNLOCK(sc); 558 559 if (ifp) { 560 ic = ifp->if_l2com; 561 ieee80211_ifdetach(ic); 562 if_free(ifp); 563 } 564 mtx_destroy(&sc->sc_mtx); 565 return (0); 566} 567 568static usb_error_t 569rum_do_request(struct rum_softc *sc, 570 struct usb_device_request *req, void *data) 571{ 572 usb_error_t err; 573 int ntries = 10; 574 575 while (ntries--) { 576 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 577 req, data, 0, NULL, 250 /* ms */); 578 if (err == 0) 579 break; 580 581 DPRINTFN(1, "Control request failed, %s (retrying)\n", 582 usbd_errstr(err)); 583 if (rum_pause(sc, hz / 100)) 584 break; 585 } 586 return (err); 587} 588 589static struct ieee80211vap * 590rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 591 enum ieee80211_opmode opmode, int flags, 592 const uint8_t bssid[IEEE80211_ADDR_LEN], 593 const uint8_t mac[IEEE80211_ADDR_LEN]) 594{ 595 struct rum_softc *sc = ic->ic_ifp->if_softc; 596 struct rum_vap *rvp; 597 struct ieee80211vap *vap; 598 599 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 600 return NULL; 601 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 602 M_80211_VAP, M_NOWAIT | M_ZERO); 603 if (rvp == NULL) 604 return NULL; 605 vap = &rvp->vap; 606 /* enable s/w bmiss handling for sta mode */ 607 608 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 609 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac) != 0) { 610 /* out of memory */ 611 free(rvp, M_80211_VAP); 612 return (NULL); 613 } 614 615 /* override state transition machine */ 616 rvp->newstate = vap->iv_newstate; 617 vap->iv_newstate = rum_newstate; 618 619 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 620 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 621 ieee80211_ratectl_init(vap); 622 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 623 /* complete setup */ 624 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 625 ic->ic_opmode = opmode; 626 return vap; 627} 628 629static void 630rum_vap_delete(struct ieee80211vap *vap) 631{ 632 struct rum_vap *rvp = RUM_VAP(vap); 633 struct ieee80211com *ic = vap->iv_ic; 634 635 usb_callout_drain(&rvp->ratectl_ch); 636 ieee80211_draintask(ic, &rvp->ratectl_task); 637 ieee80211_ratectl_deinit(vap); 638 ieee80211_vap_detach(vap); 639 free(rvp, M_80211_VAP); 640} 641 642static void 643rum_tx_free(struct rum_tx_data *data, int txerr) 644{ 645 struct rum_softc *sc = data->sc; 646 647 if (data->m != NULL) { 648 if (data->m->m_flags & M_TXCB) 649 ieee80211_process_callback(data->ni, data->m, 650 txerr ? ETIMEDOUT : 0); 651 m_freem(data->m); 652 data->m = NULL; 653 654 ieee80211_free_node(data->ni); 655 data->ni = NULL; 656 } 657 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 658 sc->tx_nfree++; 659} 660 661static void 662rum_setup_tx_list(struct rum_softc *sc) 663{ 664 struct rum_tx_data *data; 665 int i; 666 667 sc->tx_nfree = 0; 668 STAILQ_INIT(&sc->tx_q); 669 STAILQ_INIT(&sc->tx_free); 670 671 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 672 data = &sc->tx_data[i]; 673 674 data->sc = sc; 675 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 676 sc->tx_nfree++; 677 } 678} 679 680static void 681rum_unsetup_tx_list(struct rum_softc *sc) 682{ 683 struct rum_tx_data *data; 684 int i; 685 686 /* make sure any subsequent use of the queues will fail */ 687 sc->tx_nfree = 0; 688 STAILQ_INIT(&sc->tx_q); 689 STAILQ_INIT(&sc->tx_free); 690 691 /* free up all node references and mbufs */ 692 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 693 data = &sc->tx_data[i]; 694 695 if (data->m != NULL) { 696 m_freem(data->m); 697 data->m = NULL; 698 } 699 if (data->ni != NULL) { 700 ieee80211_free_node(data->ni); 701 data->ni = NULL; 702 } 703 } 704} 705 706static int 707rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 708{ 709 struct rum_vap *rvp = RUM_VAP(vap); 710 struct ieee80211com *ic = vap->iv_ic; 711 struct rum_softc *sc = ic->ic_ifp->if_softc; 712 const struct ieee80211_txparam *tp; 713 enum ieee80211_state ostate; 714 struct ieee80211_node *ni; 715 uint32_t tmp; 716 717 ostate = vap->iv_state; 718 DPRINTF("%s -> %s\n", 719 ieee80211_state_name[ostate], 720 ieee80211_state_name[nstate]); 721 722 IEEE80211_UNLOCK(ic); 723 RUM_LOCK(sc); 724 usb_callout_stop(&rvp->ratectl_ch); 725 726 switch (nstate) { 727 case IEEE80211_S_INIT: 728 if (ostate == IEEE80211_S_RUN) { 729 /* abort TSF synchronization */ 730 tmp = rum_read(sc, RT2573_TXRX_CSR9); 731 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 732 } 733 break; 734 735 case IEEE80211_S_RUN: 736 ni = ieee80211_ref_node(vap->iv_bss); 737 738 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 739 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 740 RUM_UNLOCK(sc); 741 IEEE80211_LOCK(ic); 742 ieee80211_free_node(ni); 743 return (-1); 744 } 745 rum_update_slot(ic->ic_ifp); 746 rum_enable_mrr(sc); 747 rum_set_txpreamble(sc); 748 rum_set_basicrates(sc); 749 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 750 rum_set_bssid(sc, sc->sc_bssid); 751 } 752 753 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 754 vap->iv_opmode == IEEE80211_M_IBSS) 755 rum_prepare_beacon(sc, vap); 756 757 if (vap->iv_opmode != IEEE80211_M_MONITOR) 758 rum_enable_tsf_sync(sc); 759 else 760 rum_enable_tsf(sc); 761 762 /* enable automatic rate adaptation */ 763 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 764 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 765 rum_ratectl_start(sc, ni); 766 ieee80211_free_node(ni); 767 break; 768 default: 769 break; 770 } 771 RUM_UNLOCK(sc); 772 IEEE80211_LOCK(ic); 773 return (rvp->newstate(vap, nstate, arg)); 774} 775 776static void 777rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 778{ 779 struct rum_softc *sc = usbd_xfer_softc(xfer); 780 struct ifnet *ifp = sc->sc_ifp; 781 struct ieee80211vap *vap; 782 struct rum_tx_data *data; 783 struct mbuf *m; 784 struct usb_page_cache *pc; 785 unsigned int len; 786 int actlen, sumlen; 787 788 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 789 790 switch (USB_GET_STATE(xfer)) { 791 case USB_ST_TRANSFERRED: 792 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 793 794 /* free resources */ 795 data = usbd_xfer_get_priv(xfer); 796 rum_tx_free(data, 0); 797 usbd_xfer_set_priv(xfer, NULL); 798 799 ifp->if_opackets++; 800 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 801 802 /* FALLTHROUGH */ 803 case USB_ST_SETUP: 804tr_setup: 805 data = STAILQ_FIRST(&sc->tx_q); 806 if (data) { 807 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 808 m = data->m; 809 810 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 811 DPRINTFN(0, "data overflow, %u bytes\n", 812 m->m_pkthdr.len); 813 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 814 } 815 pc = usbd_xfer_get_frame(xfer, 0); 816 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 817 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 818 m->m_pkthdr.len); 819 820 vap = data->ni->ni_vap; 821 if (ieee80211_radiotap_active_vap(vap)) { 822 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 823 824 tap->wt_flags = 0; 825 tap->wt_rate = data->rate; 826 tap->wt_antenna = sc->tx_ant; 827 828 ieee80211_radiotap_tx(vap, m); 829 } 830 831 /* align end on a 4-bytes boundary */ 832 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 833 if ((len % 64) == 0) 834 len += 4; 835 836 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 837 m->m_pkthdr.len, len); 838 839 usbd_xfer_set_frame_len(xfer, 0, len); 840 usbd_xfer_set_priv(xfer, data); 841 842 usbd_transfer_submit(xfer); 843 } 844 RUM_UNLOCK(sc); 845 rum_start(ifp); 846 RUM_LOCK(sc); 847 break; 848 849 default: /* Error */ 850 DPRINTFN(11, "transfer error, %s\n", 851 usbd_errstr(error)); 852 853 ifp->if_oerrors++; 854 data = usbd_xfer_get_priv(xfer); 855 if (data != NULL) { 856 rum_tx_free(data, error); 857 usbd_xfer_set_priv(xfer, NULL); 858 } 859 860 if (error != USB_ERR_CANCELLED) { 861 if (error == USB_ERR_TIMEOUT) 862 device_printf(sc->sc_dev, "device timeout\n"); 863 864 /* 865 * Try to clear stall first, also if other 866 * errors occur, hence clearing stall 867 * introduces a 50 ms delay: 868 */ 869 usbd_xfer_set_stall(xfer); 870 goto tr_setup; 871 } 872 break; 873 } 874} 875 876static void 877rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 878{ 879 struct rum_softc *sc = usbd_xfer_softc(xfer); 880 struct ifnet *ifp = sc->sc_ifp; 881 struct ieee80211com *ic = ifp->if_l2com; 882 struct ieee80211_node *ni; 883 struct mbuf *m = NULL; 884 struct usb_page_cache *pc; 885 uint32_t flags; 886 uint8_t rssi = 0; 887 int len; 888 889 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 890 891 switch (USB_GET_STATE(xfer)) { 892 case USB_ST_TRANSFERRED: 893 894 DPRINTFN(15, "rx done, actlen=%d\n", len); 895 896 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 897 DPRINTF("%s: xfer too short %d\n", 898 device_get_nameunit(sc->sc_dev), len); 899 ifp->if_ierrors++; 900 goto tr_setup; 901 } 902 903 len -= RT2573_RX_DESC_SIZE; 904 pc = usbd_xfer_get_frame(xfer, 0); 905 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 906 907 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 908 flags = le32toh(sc->sc_rx_desc.flags); 909 if (flags & RT2573_RX_CRC_ERROR) { 910 /* 911 * This should not happen since we did not 912 * request to receive those frames when we 913 * filled RUM_TXRX_CSR2: 914 */ 915 DPRINTFN(5, "PHY or CRC error\n"); 916 ifp->if_ierrors++; 917 goto tr_setup; 918 } 919 920 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 921 if (m == NULL) { 922 DPRINTF("could not allocate mbuf\n"); 923 ifp->if_ierrors++; 924 goto tr_setup; 925 } 926 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 927 mtod(m, uint8_t *), len); 928 929 /* finalize mbuf */ 930 m->m_pkthdr.rcvif = ifp; 931 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 932 933 if (ieee80211_radiotap_active(ic)) { 934 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 935 936 /* XXX read tsf */ 937 tap->wr_flags = 0; 938 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 939 (flags & RT2573_RX_OFDM) ? 940 IEEE80211_T_OFDM : IEEE80211_T_CCK); 941 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 942 tap->wr_antnoise = RT2573_NOISE_FLOOR; 943 tap->wr_antenna = sc->rx_ant; 944 } 945 /* FALLTHROUGH */ 946 case USB_ST_SETUP: 947tr_setup: 948 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 949 usbd_transfer_submit(xfer); 950 951 /* 952 * At the end of a USB callback it is always safe to unlock 953 * the private mutex of a device! That is why we do the 954 * "ieee80211_input" here, and not some lines up! 955 */ 956 RUM_UNLOCK(sc); 957 if (m) { 958 ni = ieee80211_find_rxnode(ic, 959 mtod(m, struct ieee80211_frame_min *)); 960 if (ni != NULL) { 961 (void) ieee80211_input(ni, m, rssi, 962 RT2573_NOISE_FLOOR); 963 ieee80211_free_node(ni); 964 } else 965 (void) ieee80211_input_all(ic, m, rssi, 966 RT2573_NOISE_FLOOR); 967 } 968 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 969 !IFQ_IS_EMPTY(&ifp->if_snd)) 970 rum_start(ifp); 971 RUM_LOCK(sc); 972 return; 973 974 default: /* Error */ 975 if (error != USB_ERR_CANCELLED) { 976 /* try to clear stall first */ 977 usbd_xfer_set_stall(xfer); 978 goto tr_setup; 979 } 980 return; 981 } 982} 983 984static uint8_t 985rum_plcp_signal(int rate) 986{ 987 switch (rate) { 988 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 989 case 12: return 0xb; 990 case 18: return 0xf; 991 case 24: return 0xa; 992 case 36: return 0xe; 993 case 48: return 0x9; 994 case 72: return 0xd; 995 case 96: return 0x8; 996 case 108: return 0xc; 997 998 /* CCK rates (NB: not IEEE std, device-specific) */ 999 case 2: return 0x0; 1000 case 4: return 0x1; 1001 case 11: return 0x2; 1002 case 22: return 0x3; 1003 } 1004 return 0xff; /* XXX unsupported/unknown rate */ 1005} 1006 1007static void 1008rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1009 uint32_t flags, uint16_t xflags, int len, int rate) 1010{ 1011 struct ifnet *ifp = sc->sc_ifp; 1012 struct ieee80211com *ic = ifp->if_l2com; 1013 uint16_t plcp_length; 1014 int remainder; 1015 1016 desc->flags = htole32(flags); 1017 desc->flags |= htole32(RT2573_TX_VALID); 1018 desc->flags |= htole32(len << 16); 1019 1020 desc->xflags = htole16(xflags); 1021 1022 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1023 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1024 1025 /* setup PLCP fields */ 1026 desc->plcp_signal = rum_plcp_signal(rate); 1027 desc->plcp_service = 4; 1028 1029 len += IEEE80211_CRC_LEN; 1030 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1031 desc->flags |= htole32(RT2573_TX_OFDM); 1032 1033 plcp_length = len & 0xfff; 1034 desc->plcp_length_hi = plcp_length >> 6; 1035 desc->plcp_length_lo = plcp_length & 0x3f; 1036 } else { 1037 plcp_length = (16 * len + rate - 1) / rate; 1038 if (rate == 22) { 1039 remainder = (16 * len) % 22; 1040 if (remainder != 0 && remainder < 7) 1041 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1042 } 1043 desc->plcp_length_hi = plcp_length >> 8; 1044 desc->plcp_length_lo = plcp_length & 0xff; 1045 1046 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1047 desc->plcp_signal |= 0x08; 1048 } 1049} 1050 1051static int 1052rum_sendprot(struct rum_softc *sc, 1053 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1054{ 1055 struct ieee80211com *ic = ni->ni_ic; 1056 const struct ieee80211_frame *wh; 1057 struct rum_tx_data *data; 1058 struct mbuf *mprot; 1059 int protrate, ackrate, pktlen, flags, isshort; 1060 uint16_t dur; 1061 1062 RUM_LOCK_ASSERT(sc, MA_OWNED); 1063 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1064 ("protection %d", prot)); 1065 1066 wh = mtod(m, const struct ieee80211_frame *); 1067 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1068 1069 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1070 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1071 1072 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1073 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1074 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1075 flags = RT2573_TX_MORE_FRAG; 1076 if (prot == IEEE80211_PROT_RTSCTS) { 1077 /* NB: CTS is the same size as an ACK */ 1078 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1079 flags |= RT2573_TX_NEED_ACK; 1080 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1081 } else { 1082 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1083 } 1084 if (mprot == NULL) { 1085 /* XXX stat + msg */ 1086 return (ENOBUFS); 1087 } 1088 data = STAILQ_FIRST(&sc->tx_free); 1089 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1090 sc->tx_nfree--; 1091 1092 data->m = mprot; 1093 data->ni = ieee80211_ref_node(ni); 1094 data->rate = protrate; 1095 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1096 1097 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1098 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1099 1100 return 0; 1101} 1102 1103static int 1104rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1105{ 1106 struct ieee80211vap *vap = ni->ni_vap; 1107 struct ifnet *ifp = sc->sc_ifp; 1108 struct ieee80211com *ic = ifp->if_l2com; 1109 struct rum_tx_data *data; 1110 struct ieee80211_frame *wh; 1111 const struct ieee80211_txparam *tp; 1112 struct ieee80211_key *k; 1113 uint32_t flags = 0; 1114 uint16_t dur; 1115 1116 RUM_LOCK_ASSERT(sc, MA_OWNED); 1117 1118 data = STAILQ_FIRST(&sc->tx_free); 1119 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1120 sc->tx_nfree--; 1121 1122 wh = mtod(m0, struct ieee80211_frame *); 1123 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1124 k = ieee80211_crypto_encap(ni, m0); 1125 if (k == NULL) { 1126 m_freem(m0); 1127 return ENOBUFS; 1128 } 1129 wh = mtod(m0, struct ieee80211_frame *); 1130 } 1131 1132 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1133 1134 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1135 flags |= RT2573_TX_NEED_ACK; 1136 1137 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1138 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1139 USETW(wh->i_dur, dur); 1140 1141 /* tell hardware to add timestamp for probe responses */ 1142 if ((wh->i_fc[0] & 1143 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1144 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1145 flags |= RT2573_TX_TIMESTAMP; 1146 } 1147 1148 data->m = m0; 1149 data->ni = ni; 1150 data->rate = tp->mgmtrate; 1151 1152 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1153 1154 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1155 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1156 1157 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1158 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1159 1160 return (0); 1161} 1162 1163static int 1164rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1165 const struct ieee80211_bpf_params *params) 1166{ 1167 struct ieee80211com *ic = ni->ni_ic; 1168 struct rum_tx_data *data; 1169 uint32_t flags; 1170 int rate, error; 1171 1172 RUM_LOCK_ASSERT(sc, MA_OWNED); 1173 KASSERT(params != NULL, ("no raw xmit params")); 1174 1175 rate = params->ibp_rate0; 1176 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1177 m_freem(m0); 1178 return EINVAL; 1179 } 1180 flags = 0; 1181 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1182 flags |= RT2573_TX_NEED_ACK; 1183 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1184 error = rum_sendprot(sc, m0, ni, 1185 params->ibp_flags & IEEE80211_BPF_RTS ? 1186 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1187 rate); 1188 if (error || sc->tx_nfree == 0) { 1189 m_freem(m0); 1190 return ENOBUFS; 1191 } 1192 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1193 } 1194 1195 data = STAILQ_FIRST(&sc->tx_free); 1196 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1197 sc->tx_nfree--; 1198 1199 data->m = m0; 1200 data->ni = ni; 1201 data->rate = rate; 1202 1203 /* XXX need to setup descriptor ourself */ 1204 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1205 1206 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1207 m0->m_pkthdr.len, rate); 1208 1209 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1210 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1211 1212 return 0; 1213} 1214 1215static int 1216rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1217{ 1218 struct ieee80211vap *vap = ni->ni_vap; 1219 struct ifnet *ifp = sc->sc_ifp; 1220 struct ieee80211com *ic = ifp->if_l2com; 1221 struct rum_tx_data *data; 1222 struct ieee80211_frame *wh; 1223 const struct ieee80211_txparam *tp; 1224 struct ieee80211_key *k; 1225 uint32_t flags = 0; 1226 uint16_t dur; 1227 int error, rate; 1228 1229 RUM_LOCK_ASSERT(sc, MA_OWNED); 1230 1231 wh = mtod(m0, struct ieee80211_frame *); 1232 1233 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1234 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1235 rate = tp->mcastrate; 1236 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1237 rate = tp->ucastrate; 1238 else 1239 rate = ni->ni_txrate; 1240 1241 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1242 k = ieee80211_crypto_encap(ni, m0); 1243 if (k == NULL) { 1244 m_freem(m0); 1245 return ENOBUFS; 1246 } 1247 1248 /* packet header may have moved, reset our local pointer */ 1249 wh = mtod(m0, struct ieee80211_frame *); 1250 } 1251 1252 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1253 int prot = IEEE80211_PROT_NONE; 1254 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1255 prot = IEEE80211_PROT_RTSCTS; 1256 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1257 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1258 prot = ic->ic_protmode; 1259 if (prot != IEEE80211_PROT_NONE) { 1260 error = rum_sendprot(sc, m0, ni, prot, rate); 1261 if (error || sc->tx_nfree == 0) { 1262 m_freem(m0); 1263 return ENOBUFS; 1264 } 1265 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1266 } 1267 } 1268 1269 data = STAILQ_FIRST(&sc->tx_free); 1270 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1271 sc->tx_nfree--; 1272 1273 data->m = m0; 1274 data->ni = ni; 1275 data->rate = rate; 1276 1277 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1278 flags |= RT2573_TX_NEED_ACK; 1279 flags |= RT2573_TX_MORE_FRAG; 1280 1281 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1282 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1283 USETW(wh->i_dur, dur); 1284 } 1285 1286 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1287 1288 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1289 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1290 1291 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1292 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1293 1294 return 0; 1295} 1296 1297static void 1298rum_start(struct ifnet *ifp) 1299{ 1300 struct rum_softc *sc = ifp->if_softc; 1301 struct ieee80211_node *ni; 1302 struct mbuf *m; 1303 1304 RUM_LOCK(sc); 1305 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1306 RUM_UNLOCK(sc); 1307 return; 1308 } 1309 for (;;) { 1310 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1311 if (m == NULL) 1312 break; 1313 if (sc->tx_nfree < RUM_TX_MINFREE) { 1314 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1315 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1316 break; 1317 } 1318 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1319 if (rum_tx_data(sc, m, ni) != 0) { 1320 ieee80211_free_node(ni); 1321 ifp->if_oerrors++; 1322 break; 1323 } 1324 } 1325 RUM_UNLOCK(sc); 1326} 1327 1328static int 1329rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1330{ 1331 struct rum_softc *sc = ifp->if_softc; 1332 struct ieee80211com *ic = ifp->if_l2com; 1333 struct ifreq *ifr = (struct ifreq *) data; 1334 int error; 1335 int startall = 0; 1336 1337 RUM_LOCK(sc); 1338 error = sc->sc_detached ? ENXIO : 0; 1339 RUM_UNLOCK(sc); 1340 if (error) 1341 return (error); 1342 1343 switch (cmd) { 1344 case SIOCSIFFLAGS: 1345 RUM_LOCK(sc); 1346 if (ifp->if_flags & IFF_UP) { 1347 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1348 rum_init_locked(sc); 1349 startall = 1; 1350 } else 1351 rum_setpromisc(sc); 1352 } else { 1353 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1354 rum_stop(sc); 1355 } 1356 RUM_UNLOCK(sc); 1357 if (startall) 1358 ieee80211_start_all(ic); 1359 break; 1360 case SIOCGIFMEDIA: 1361 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1362 break; 1363 case SIOCGIFADDR: 1364 error = ether_ioctl(ifp, cmd, data); 1365 break; 1366 default: 1367 error = EINVAL; 1368 break; 1369 } 1370 return error; 1371} 1372 1373static void 1374rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1375{ 1376 struct usb_device_request req; 1377 usb_error_t error; 1378 1379 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1380 req.bRequest = RT2573_READ_EEPROM; 1381 USETW(req.wValue, 0); 1382 USETW(req.wIndex, addr); 1383 USETW(req.wLength, len); 1384 1385 error = rum_do_request(sc, &req, buf); 1386 if (error != 0) { 1387 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1388 usbd_errstr(error)); 1389 } 1390} 1391 1392static uint32_t 1393rum_read(struct rum_softc *sc, uint16_t reg) 1394{ 1395 uint32_t val; 1396 1397 rum_read_multi(sc, reg, &val, sizeof val); 1398 1399 return le32toh(val); 1400} 1401 1402static void 1403rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1404{ 1405 struct usb_device_request req; 1406 usb_error_t error; 1407 1408 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1409 req.bRequest = RT2573_READ_MULTI_MAC; 1410 USETW(req.wValue, 0); 1411 USETW(req.wIndex, reg); 1412 USETW(req.wLength, len); 1413 1414 error = rum_do_request(sc, &req, buf); 1415 if (error != 0) { 1416 device_printf(sc->sc_dev, 1417 "could not multi read MAC register: %s\n", 1418 usbd_errstr(error)); 1419 } 1420} 1421 1422static usb_error_t 1423rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1424{ 1425 uint32_t tmp = htole32(val); 1426 1427 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1428} 1429 1430static usb_error_t 1431rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1432{ 1433 struct usb_device_request req; 1434 usb_error_t error; 1435 size_t offset; 1436 1437 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1438 req.bRequest = RT2573_WRITE_MULTI_MAC; 1439 USETW(req.wValue, 0); 1440 1441 /* write at most 64 bytes at a time */ 1442 for (offset = 0; offset < len; offset += 64) { 1443 USETW(req.wIndex, reg + offset); 1444 USETW(req.wLength, MIN(len - offset, 64)); 1445 1446 error = rum_do_request(sc, &req, (char *)buf + offset); 1447 if (error != 0) { 1448 device_printf(sc->sc_dev, 1449 "could not multi write MAC register: %s\n", 1450 usbd_errstr(error)); 1451 return (error); 1452 } 1453 } 1454 1455 return (USB_ERR_NORMAL_COMPLETION); 1456} 1457 1458static void 1459rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1460{ 1461 uint32_t tmp; 1462 int ntries; 1463 1464 DPRINTFN(2, "reg=0x%08x\n", reg); 1465 1466 for (ntries = 0; ntries < 100; ntries++) { 1467 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1468 break; 1469 if (rum_pause(sc, hz / 100)) 1470 break; 1471 } 1472 if (ntries == 100) { 1473 device_printf(sc->sc_dev, "could not write to BBP\n"); 1474 return; 1475 } 1476 1477 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1478 rum_write(sc, RT2573_PHY_CSR3, tmp); 1479} 1480 1481static uint8_t 1482rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1483{ 1484 uint32_t val; 1485 int ntries; 1486 1487 DPRINTFN(2, "reg=0x%08x\n", reg); 1488 1489 for (ntries = 0; ntries < 100; ntries++) { 1490 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1491 break; 1492 if (rum_pause(sc, hz / 100)) 1493 break; 1494 } 1495 if (ntries == 100) { 1496 device_printf(sc->sc_dev, "could not read BBP\n"); 1497 return 0; 1498 } 1499 1500 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1501 rum_write(sc, RT2573_PHY_CSR3, val); 1502 1503 for (ntries = 0; ntries < 100; ntries++) { 1504 val = rum_read(sc, RT2573_PHY_CSR3); 1505 if (!(val & RT2573_BBP_BUSY)) 1506 return val & 0xff; 1507 if (rum_pause(sc, hz / 100)) 1508 break; 1509 } 1510 1511 device_printf(sc->sc_dev, "could not read BBP\n"); 1512 return 0; 1513} 1514 1515static void 1516rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1517{ 1518 uint32_t tmp; 1519 int ntries; 1520 1521 for (ntries = 0; ntries < 100; ntries++) { 1522 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1523 break; 1524 if (rum_pause(sc, hz / 100)) 1525 break; 1526 } 1527 if (ntries == 100) { 1528 device_printf(sc->sc_dev, "could not write to RF\n"); 1529 return; 1530 } 1531 1532 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1533 (reg & 3); 1534 rum_write(sc, RT2573_PHY_CSR4, tmp); 1535 1536 /* remember last written value in sc */ 1537 sc->rf_regs[reg] = val; 1538 1539 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1540} 1541 1542static void 1543rum_select_antenna(struct rum_softc *sc) 1544{ 1545 uint8_t bbp4, bbp77; 1546 uint32_t tmp; 1547 1548 bbp4 = rum_bbp_read(sc, 4); 1549 bbp77 = rum_bbp_read(sc, 77); 1550 1551 /* TBD */ 1552 1553 /* make sure Rx is disabled before switching antenna */ 1554 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1555 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1556 1557 rum_bbp_write(sc, 4, bbp4); 1558 rum_bbp_write(sc, 77, bbp77); 1559 1560 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1561} 1562 1563/* 1564 * Enable multi-rate retries for frames sent at OFDM rates. 1565 * In 802.11b/g mode, allow fallback to CCK rates. 1566 */ 1567static void 1568rum_enable_mrr(struct rum_softc *sc) 1569{ 1570 struct ifnet *ifp = sc->sc_ifp; 1571 struct ieee80211com *ic = ifp->if_l2com; 1572 uint32_t tmp; 1573 1574 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1575 1576 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1577 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1578 tmp |= RT2573_MRR_CCK_FALLBACK; 1579 tmp |= RT2573_MRR_ENABLED; 1580 1581 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1582} 1583 1584static void 1585rum_set_txpreamble(struct rum_softc *sc) 1586{ 1587 struct ifnet *ifp = sc->sc_ifp; 1588 struct ieee80211com *ic = ifp->if_l2com; 1589 uint32_t tmp; 1590 1591 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1592 1593 tmp &= ~RT2573_SHORT_PREAMBLE; 1594 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1595 tmp |= RT2573_SHORT_PREAMBLE; 1596 1597 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1598} 1599 1600static void 1601rum_set_basicrates(struct rum_softc *sc) 1602{ 1603 struct ifnet *ifp = sc->sc_ifp; 1604 struct ieee80211com *ic = ifp->if_l2com; 1605 1606 /* update basic rate set */ 1607 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1608 /* 11b basic rates: 1, 2Mbps */ 1609 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1610 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1611 /* 11a basic rates: 6, 12, 24Mbps */ 1612 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1613 } else { 1614 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1615 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1616 } 1617} 1618 1619/* 1620 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1621 * driver. 1622 */ 1623static void 1624rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1625{ 1626 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1627 uint32_t tmp; 1628 1629 /* update all BBP registers that depend on the band */ 1630 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1631 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1632 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1633 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1634 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1635 } 1636 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1637 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1638 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1639 } 1640 1641 sc->bbp17 = bbp17; 1642 rum_bbp_write(sc, 17, bbp17); 1643 rum_bbp_write(sc, 96, bbp96); 1644 rum_bbp_write(sc, 104, bbp104); 1645 1646 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1647 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1648 rum_bbp_write(sc, 75, 0x80); 1649 rum_bbp_write(sc, 86, 0x80); 1650 rum_bbp_write(sc, 88, 0x80); 1651 } 1652 1653 rum_bbp_write(sc, 35, bbp35); 1654 rum_bbp_write(sc, 97, bbp97); 1655 rum_bbp_write(sc, 98, bbp98); 1656 1657 tmp = rum_read(sc, RT2573_PHY_CSR0); 1658 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1659 if (IEEE80211_IS_CHAN_2GHZ(c)) 1660 tmp |= RT2573_PA_PE_2GHZ; 1661 else 1662 tmp |= RT2573_PA_PE_5GHZ; 1663 rum_write(sc, RT2573_PHY_CSR0, tmp); 1664} 1665 1666static void 1667rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1668{ 1669 struct ifnet *ifp = sc->sc_ifp; 1670 struct ieee80211com *ic = ifp->if_l2com; 1671 const struct rfprog *rfprog; 1672 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1673 int8_t power; 1674 int i, chan; 1675 1676 chan = ieee80211_chan2ieee(ic, c); 1677 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1678 return; 1679 1680 /* select the appropriate RF settings based on what EEPROM says */ 1681 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1682 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1683 1684 /* find the settings for this channel (we know it exists) */ 1685 for (i = 0; rfprog[i].chan != chan; i++); 1686 1687 power = sc->txpow[i]; 1688 if (power < 0) { 1689 bbp94 += power; 1690 power = 0; 1691 } else if (power > 31) { 1692 bbp94 += power - 31; 1693 power = 31; 1694 } 1695 1696 /* 1697 * If we are switching from the 2GHz band to the 5GHz band or 1698 * vice-versa, BBP registers need to be reprogrammed. 1699 */ 1700 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1701 rum_select_band(sc, c); 1702 rum_select_antenna(sc); 1703 } 1704 ic->ic_curchan = c; 1705 1706 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1707 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1708 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1709 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1710 1711 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1712 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1713 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1714 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1715 1716 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1717 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1718 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1719 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1720 1721 rum_pause(sc, hz / 100); 1722 1723 /* enable smart mode for MIMO-capable RFs */ 1724 bbp3 = rum_bbp_read(sc, 3); 1725 1726 bbp3 &= ~RT2573_SMART_MODE; 1727 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1728 bbp3 |= RT2573_SMART_MODE; 1729 1730 rum_bbp_write(sc, 3, bbp3); 1731 1732 if (bbp94 != RT2573_BBPR94_DEFAULT) 1733 rum_bbp_write(sc, 94, bbp94); 1734 1735 /* give the chip some extra time to do the switchover */ 1736 rum_pause(sc, hz / 100); 1737} 1738 1739/* 1740 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1741 * and HostAP operating modes. 1742 */ 1743static void 1744rum_enable_tsf_sync(struct rum_softc *sc) 1745{ 1746 struct ifnet *ifp = sc->sc_ifp; 1747 struct ieee80211com *ic = ifp->if_l2com; 1748 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1749 uint32_t tmp; 1750 1751 if (vap->iv_opmode != IEEE80211_M_STA) { 1752 /* 1753 * Change default 16ms TBTT adjustment to 8ms. 1754 * Must be done before enabling beacon generation. 1755 */ 1756 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1757 } 1758 1759 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1760 1761 /* set beacon interval (in 1/16ms unit) */ 1762 tmp |= vap->iv_bss->ni_intval * 16; 1763 1764 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1765 if (vap->iv_opmode == IEEE80211_M_STA) 1766 tmp |= RT2573_TSF_MODE(1); 1767 else 1768 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1769 1770 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1771} 1772 1773static void 1774rum_enable_tsf(struct rum_softc *sc) 1775{ 1776 rum_write(sc, RT2573_TXRX_CSR9, 1777 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1778 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1779} 1780 1781static void 1782rum_update_slot(struct ifnet *ifp) 1783{ 1784 struct rum_softc *sc = ifp->if_softc; 1785 struct ieee80211com *ic = ifp->if_l2com; 1786 uint8_t slottime; 1787 uint32_t tmp; 1788 1789 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1790 1791 tmp = rum_read(sc, RT2573_MAC_CSR9); 1792 tmp = (tmp & ~0xff) | slottime; 1793 rum_write(sc, RT2573_MAC_CSR9, tmp); 1794 1795 DPRINTF("setting slot time to %uus\n", slottime); 1796} 1797 1798static void 1799rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1800{ 1801 uint32_t tmp; 1802 1803 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1804 rum_write(sc, RT2573_MAC_CSR4, tmp); 1805 1806 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1807 rum_write(sc, RT2573_MAC_CSR5, tmp); 1808} 1809 1810static void 1811rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1812{ 1813 uint32_t tmp; 1814 1815 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1816 rum_write(sc, RT2573_MAC_CSR2, tmp); 1817 1818 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1819 rum_write(sc, RT2573_MAC_CSR3, tmp); 1820} 1821 1822static void 1823rum_setpromisc(struct rum_softc *sc) 1824{ 1825 struct ifnet *ifp = sc->sc_ifp; 1826 uint32_t tmp; 1827 1828 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1829 1830 tmp &= ~RT2573_DROP_NOT_TO_ME; 1831 if (!(ifp->if_flags & IFF_PROMISC)) 1832 tmp |= RT2573_DROP_NOT_TO_ME; 1833 1834 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1835 1836 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1837 "entering" : "leaving"); 1838} 1839 1840static void 1841rum_update_promisc(struct ifnet *ifp) 1842{ 1843 struct rum_softc *sc = ifp->if_softc; 1844 1845 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1846 return; 1847 1848 RUM_LOCK(sc); 1849 rum_setpromisc(sc); 1850 RUM_UNLOCK(sc); 1851} 1852 1853static void 1854rum_update_mcast(struct ifnet *ifp) 1855{ 1856 static int warning_printed; 1857 1858 if (warning_printed == 0) { 1859 if_printf(ifp, "need to implement %s\n", __func__); 1860 warning_printed = 1; 1861 } 1862} 1863 1864static const char * 1865rum_get_rf(int rev) 1866{ 1867 switch (rev) { 1868 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1869 case RT2573_RF_2528: return "RT2528"; 1870 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1871 case RT2573_RF_5226: return "RT5226"; 1872 default: return "unknown"; 1873 } 1874} 1875 1876static void 1877rum_read_eeprom(struct rum_softc *sc) 1878{ 1879 uint16_t val; 1880#ifdef RUM_DEBUG 1881 int i; 1882#endif 1883 1884 /* read MAC address */ 1885 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1886 1887 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1888 val = le16toh(val); 1889 sc->rf_rev = (val >> 11) & 0x1f; 1890 sc->hw_radio = (val >> 10) & 0x1; 1891 sc->rx_ant = (val >> 4) & 0x3; 1892 sc->tx_ant = (val >> 2) & 0x3; 1893 sc->nb_ant = val & 0x3; 1894 1895 DPRINTF("RF revision=%d\n", sc->rf_rev); 1896 1897 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1898 val = le16toh(val); 1899 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1900 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1901 1902 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1903 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1904 1905 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1906 val = le16toh(val); 1907 if ((val & 0xff) != 0xff) 1908 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1909 1910 /* Only [-10, 10] is valid */ 1911 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1912 sc->rssi_2ghz_corr = 0; 1913 1914 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1915 val = le16toh(val); 1916 if ((val & 0xff) != 0xff) 1917 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1918 1919 /* Only [-10, 10] is valid */ 1920 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1921 sc->rssi_5ghz_corr = 0; 1922 1923 if (sc->ext_2ghz_lna) 1924 sc->rssi_2ghz_corr -= 14; 1925 if (sc->ext_5ghz_lna) 1926 sc->rssi_5ghz_corr -= 14; 1927 1928 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1929 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1930 1931 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1932 val = le16toh(val); 1933 if ((val & 0xff) != 0xff) 1934 sc->rffreq = val & 0xff; 1935 1936 DPRINTF("RF freq=%d\n", sc->rffreq); 1937 1938 /* read Tx power for all a/b/g channels */ 1939 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1940 /* XXX default Tx power for 802.11a channels */ 1941 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1942#ifdef RUM_DEBUG 1943 for (i = 0; i < 14; i++) 1944 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1945#endif 1946 1947 /* read default values for BBP registers */ 1948 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1949#ifdef RUM_DEBUG 1950 for (i = 0; i < 14; i++) { 1951 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1952 continue; 1953 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1954 sc->bbp_prom[i].val); 1955 } 1956#endif 1957} 1958 1959static int 1960rum_bbp_init(struct rum_softc *sc) 1961{ 1962 int i, ntries; 1963 1964 /* wait for BBP to be ready */ 1965 for (ntries = 0; ntries < 100; ntries++) { 1966 const uint8_t val = rum_bbp_read(sc, 0); 1967 if (val != 0 && val != 0xff) 1968 break; 1969 if (rum_pause(sc, hz / 100)) 1970 break; 1971 } 1972 if (ntries == 100) { 1973 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1974 return EIO; 1975 } 1976 1977 /* initialize BBP registers to default values */ 1978 for (i = 0; i < N(rum_def_bbp); i++) 1979 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1980 1981 /* write vendor-specific BBP values (from EEPROM) */ 1982 for (i = 0; i < 16; i++) { 1983 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1984 continue; 1985 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1986 } 1987 1988 return 0; 1989} 1990 1991static void 1992rum_init_locked(struct rum_softc *sc) 1993{ 1994 struct ifnet *ifp = sc->sc_ifp; 1995 struct ieee80211com *ic = ifp->if_l2com; 1996 uint32_t tmp; 1997 usb_error_t error; 1998 int i, ntries; 1999 2000 RUM_LOCK_ASSERT(sc, MA_OWNED); 2001 2002 rum_stop(sc); 2003 2004 /* initialize MAC registers to default values */ 2005 for (i = 0; i < N(rum_def_mac); i++) 2006 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2007 2008 /* set host ready */ 2009 rum_write(sc, RT2573_MAC_CSR1, 3); 2010 rum_write(sc, RT2573_MAC_CSR1, 0); 2011 2012 /* wait for BBP/RF to wakeup */ 2013 for (ntries = 0; ntries < 100; ntries++) { 2014 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2015 break; 2016 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2017 if (rum_pause(sc, hz / 100)) 2018 break; 2019 } 2020 if (ntries == 100) { 2021 device_printf(sc->sc_dev, 2022 "timeout waiting for BBP/RF to wakeup\n"); 2023 goto fail; 2024 } 2025 2026 if ((error = rum_bbp_init(sc)) != 0) 2027 goto fail; 2028 2029 /* select default channel */ 2030 rum_select_band(sc, ic->ic_curchan); 2031 rum_select_antenna(sc); 2032 rum_set_chan(sc, ic->ic_curchan); 2033 2034 /* clear STA registers */ 2035 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2036 2037 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2038 2039 /* initialize ASIC */ 2040 rum_write(sc, RT2573_MAC_CSR1, 4); 2041 2042 /* 2043 * Allocate Tx and Rx xfer queues. 2044 */ 2045 rum_setup_tx_list(sc); 2046 2047 /* update Rx filter */ 2048 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2049 2050 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2051 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2052 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2053 RT2573_DROP_ACKCTS; 2054 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2055 tmp |= RT2573_DROP_TODS; 2056 if (!(ifp->if_flags & IFF_PROMISC)) 2057 tmp |= RT2573_DROP_NOT_TO_ME; 2058 } 2059 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2060 2061 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2062 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2063 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2064 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2065 return; 2066 2067fail: rum_stop(sc); 2068#undef N 2069} 2070 2071static void 2072rum_init(void *priv) 2073{ 2074 struct rum_softc *sc = priv; 2075 struct ifnet *ifp = sc->sc_ifp; 2076 struct ieee80211com *ic = ifp->if_l2com; 2077 2078 RUM_LOCK(sc); 2079 rum_init_locked(sc); 2080 RUM_UNLOCK(sc); 2081 2082 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2083 ieee80211_start_all(ic); /* start all vap's */ 2084} 2085 2086static void 2087rum_stop(struct rum_softc *sc) 2088{ 2089 struct ifnet *ifp = sc->sc_ifp; 2090 uint32_t tmp; 2091 2092 RUM_LOCK_ASSERT(sc, MA_OWNED); 2093 2094 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2095 2096 RUM_UNLOCK(sc); 2097 2098 /* 2099 * Drain the USB transfers, if not already drained: 2100 */ 2101 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2102 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2103 2104 RUM_LOCK(sc); 2105 2106 rum_unsetup_tx_list(sc); 2107 2108 /* disable Rx */ 2109 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2110 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2111 2112 /* reset ASIC */ 2113 rum_write(sc, RT2573_MAC_CSR1, 3); 2114 rum_write(sc, RT2573_MAC_CSR1, 0); 2115} 2116 2117static void 2118rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2119{ 2120 struct usb_device_request req; 2121 uint16_t reg = RT2573_MCU_CODE_BASE; 2122 usb_error_t err; 2123 2124 /* copy firmware image into NIC */ 2125 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2126 err = rum_write(sc, reg, UGETDW(ucode)); 2127 if (err) { 2128 /* firmware already loaded ? */ 2129 device_printf(sc->sc_dev, "Firmware load " 2130 "failure! (ignored)\n"); 2131 break; 2132 } 2133 } 2134 2135 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2136 req.bRequest = RT2573_MCU_CNTL; 2137 USETW(req.wValue, RT2573_MCU_RUN); 2138 USETW(req.wIndex, 0); 2139 USETW(req.wLength, 0); 2140 2141 err = rum_do_request(sc, &req, NULL); 2142 if (err != 0) { 2143 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2144 usbd_errstr(err)); 2145 } 2146 2147 /* give the chip some time to boot */ 2148 rum_pause(sc, hz / 8); 2149} 2150 2151static void 2152rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2153{ 2154 struct ieee80211com *ic = vap->iv_ic; 2155 const struct ieee80211_txparam *tp; 2156 struct rum_tx_desc desc; 2157 struct mbuf *m0; 2158 2159 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2160 return; 2161 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2162 return; 2163 2164 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2165 if (m0 == NULL) 2166 return; 2167 2168 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2169 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2170 m0->m_pkthdr.len, tp->mgmtrate); 2171 2172 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2173 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2174 2175 /* copy beacon header and payload into NIC memory */ 2176 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2177 m0->m_pkthdr.len); 2178 2179 m_freem(m0); 2180} 2181 2182static int 2183rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2184 const struct ieee80211_bpf_params *params) 2185{ 2186 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2187 struct rum_softc *sc = ifp->if_softc; 2188 2189 RUM_LOCK(sc); 2190 /* prevent management frames from being sent if we're not ready */ 2191 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2192 RUM_UNLOCK(sc); 2193 m_freem(m); 2194 ieee80211_free_node(ni); 2195 return ENETDOWN; 2196 } 2197 if (sc->tx_nfree < RUM_TX_MINFREE) { 2198 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2199 RUM_UNLOCK(sc); 2200 m_freem(m); 2201 ieee80211_free_node(ni); 2202 return EIO; 2203 } 2204 2205 ifp->if_opackets++; 2206 2207 if (params == NULL) { 2208 /* 2209 * Legacy path; interpret frame contents to decide 2210 * precisely how to send the frame. 2211 */ 2212 if (rum_tx_mgt(sc, m, ni) != 0) 2213 goto bad; 2214 } else { 2215 /* 2216 * Caller supplied explicit parameters to use in 2217 * sending the frame. 2218 */ 2219 if (rum_tx_raw(sc, m, ni, params) != 0) 2220 goto bad; 2221 } 2222 RUM_UNLOCK(sc); 2223 2224 return 0; 2225bad: 2226 ifp->if_oerrors++; 2227 RUM_UNLOCK(sc); 2228 ieee80211_free_node(ni); 2229 return EIO; 2230} 2231 2232static void 2233rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2234{ 2235 struct ieee80211vap *vap = ni->ni_vap; 2236 struct rum_vap *rvp = RUM_VAP(vap); 2237 2238 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2239 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2240 2241 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2242} 2243 2244static void 2245rum_ratectl_timeout(void *arg) 2246{ 2247 struct rum_vap *rvp = arg; 2248 struct ieee80211vap *vap = &rvp->vap; 2249 struct ieee80211com *ic = vap->iv_ic; 2250 2251 ieee80211_runtask(ic, &rvp->ratectl_task); 2252} 2253 2254static void 2255rum_ratectl_task(void *arg, int pending) 2256{ 2257 struct rum_vap *rvp = arg; 2258 struct ieee80211vap *vap = &rvp->vap; 2259 struct ieee80211com *ic = vap->iv_ic; 2260 struct ifnet *ifp = ic->ic_ifp; 2261 struct rum_softc *sc = ifp->if_softc; 2262 struct ieee80211_node *ni; 2263 int ok, fail; 2264 int sum, retrycnt; 2265 2266 RUM_LOCK(sc); 2267 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2268 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2269 2270 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2271 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2272 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2273 sum = ok+fail; 2274 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2275 2276 ni = ieee80211_ref_node(vap->iv_bss); 2277 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2278 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2279 ieee80211_free_node(ni); 2280 2281 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2282 2283 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2284 RUM_UNLOCK(sc); 2285} 2286 2287static void 2288rum_scan_start(struct ieee80211com *ic) 2289{ 2290 struct ifnet *ifp = ic->ic_ifp; 2291 struct rum_softc *sc = ifp->if_softc; 2292 uint32_t tmp; 2293 2294 RUM_LOCK(sc); 2295 /* abort TSF synchronization */ 2296 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2297 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2298 rum_set_bssid(sc, ifp->if_broadcastaddr); 2299 RUM_UNLOCK(sc); 2300 2301} 2302 2303static void 2304rum_scan_end(struct ieee80211com *ic) 2305{ 2306 struct rum_softc *sc = ic->ic_ifp->if_softc; 2307 2308 RUM_LOCK(sc); 2309 rum_enable_tsf_sync(sc); 2310 rum_set_bssid(sc, sc->sc_bssid); 2311 RUM_UNLOCK(sc); 2312 2313} 2314 2315static void 2316rum_set_channel(struct ieee80211com *ic) 2317{ 2318 struct rum_softc *sc = ic->ic_ifp->if_softc; 2319 2320 RUM_LOCK(sc); 2321 rum_set_chan(sc, ic->ic_curchan); 2322 RUM_UNLOCK(sc); 2323} 2324 2325static int 2326rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2327{ 2328 struct ifnet *ifp = sc->sc_ifp; 2329 struct ieee80211com *ic = ifp->if_l2com; 2330 int lna, agc, rssi; 2331 2332 lna = (raw >> 5) & 0x3; 2333 agc = raw & 0x1f; 2334 2335 if (lna == 0) { 2336 /* 2337 * No RSSI mapping 2338 * 2339 * NB: Since RSSI is relative to noise floor, -1 is 2340 * adequate for caller to know error happened. 2341 */ 2342 return -1; 2343 } 2344 2345 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2346 2347 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2348 rssi += sc->rssi_2ghz_corr; 2349 2350 if (lna == 1) 2351 rssi -= 64; 2352 else if (lna == 2) 2353 rssi -= 74; 2354 else if (lna == 3) 2355 rssi -= 90; 2356 } else { 2357 rssi += sc->rssi_5ghz_corr; 2358 2359 if (!sc->ext_5ghz_lna && lna != 1) 2360 rssi += 4; 2361 2362 if (lna == 1) 2363 rssi -= 64; 2364 else if (lna == 2) 2365 rssi -= 86; 2366 else if (lna == 3) 2367 rssi -= 100; 2368 } 2369 return rssi; 2370} 2371 2372static int 2373rum_pause(struct rum_softc *sc, int timeout) 2374{ 2375 2376 usb_pause_mtx(&sc->sc_mtx, timeout); 2377 return (0); 2378} 2379 2380static device_method_t rum_methods[] = { 2381 /* Device interface */ 2382 DEVMETHOD(device_probe, rum_match), 2383 DEVMETHOD(device_attach, rum_attach), 2384 DEVMETHOD(device_detach, rum_detach), 2385 DEVMETHOD_END 2386}; 2387 2388static driver_t rum_driver = { 2389 .name = "rum", 2390 .methods = rum_methods, 2391 .size = sizeof(struct rum_softc), 2392}; 2393 2394static devclass_t rum_devclass; 2395 2396DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2397MODULE_DEPEND(rum, wlan, 1, 1, 1); 2398MODULE_DEPEND(rum, usb, 1, 1, 1); 2399MODULE_VERSION(rum, 1); 2400