if_rum.c revision 246614
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 246614 2013-02-10 10:36:16Z hselasky $ */ 2 3/*- 4 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org> 6 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21#include <sys/cdefs.h> 22__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_rum.c 246614 2013-02-10 10:36:16Z hselasky $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include <sys/param.h> 30#include <sys/sockio.h> 31#include <sys/sysctl.h> 32#include <sys/lock.h> 33#include <sys/mutex.h> 34#include <sys/mbuf.h> 35#include <sys/kernel.h> 36#include <sys/socket.h> 37#include <sys/systm.h> 38#include <sys/malloc.h> 39#include <sys/module.h> 40#include <sys/bus.h> 41#include <sys/endian.h> 42#include <sys/kdb.h> 43 44#include <machine/bus.h> 45#include <machine/resource.h> 46#include <sys/rman.h> 47 48#include <net/bpf.h> 49#include <net/if.h> 50#include <net/if_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, WLIUCG), 124 RUM_DEV(MELCO, WLRUCG), 125 RUM_DEV(MELCO, WLRUCGAOSS), 126 RUM_DEV(MSI, RT2573_1), 127 RUM_DEV(MSI, RT2573_2), 128 RUM_DEV(MSI, RT2573_3), 129 RUM_DEV(MSI, RT2573_4), 130 RUM_DEV(NOVATECH, RT2573), 131 RUM_DEV(PLANEX2, GWUS54HP), 132 RUM_DEV(PLANEX2, GWUS54MINI2), 133 RUM_DEV(PLANEX2, GWUSMM), 134 RUM_DEV(QCOM, RT2573), 135 RUM_DEV(QCOM, RT2573_2), 136 RUM_DEV(QCOM, RT2573_3), 137 RUM_DEV(RALINK, RT2573), 138 RUM_DEV(RALINK, RT2573_2), 139 RUM_DEV(RALINK, RT2671), 140 RUM_DEV(SITECOMEU, WL113R2), 141 RUM_DEV(SITECOMEU, WL172), 142 RUM_DEV(SPARKLAN, RT2573), 143 RUM_DEV(SURECOM, RT2573), 144#undef RUM_DEV 145}; 146 147static device_probe_t rum_match; 148static device_attach_t rum_attach; 149static device_detach_t rum_detach; 150 151static usb_callback_t rum_bulk_read_callback; 152static usb_callback_t rum_bulk_write_callback; 153 154static usb_error_t rum_do_request(struct rum_softc *sc, 155 struct usb_device_request *req, void *data); 156static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 157 const char [IFNAMSIZ], int, enum ieee80211_opmode, 158 int, const uint8_t [IEEE80211_ADDR_LEN], 159 const uint8_t [IEEE80211_ADDR_LEN]); 160static void rum_vap_delete(struct ieee80211vap *); 161static void rum_tx_free(struct rum_tx_data *, int); 162static void rum_setup_tx_list(struct rum_softc *); 163static void rum_unsetup_tx_list(struct rum_softc *); 164static int rum_newstate(struct ieee80211vap *, 165 enum ieee80211_state, int); 166static void rum_setup_tx_desc(struct rum_softc *, 167 struct rum_tx_desc *, uint32_t, uint16_t, int, 168 int); 169static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 170 struct ieee80211_node *); 171static int rum_tx_raw(struct rum_softc *, struct mbuf *, 172 struct ieee80211_node *, 173 const struct ieee80211_bpf_params *); 174static int rum_tx_data(struct rum_softc *, struct mbuf *, 175 struct ieee80211_node *); 176static void rum_start(struct ifnet *); 177static int rum_ioctl(struct ifnet *, u_long, caddr_t); 178static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 179 int); 180static uint32_t rum_read(struct rum_softc *, uint16_t); 181static void rum_read_multi(struct rum_softc *, uint16_t, void *, 182 int); 183static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 184static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 185 size_t); 186static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 187static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 188static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 189static void rum_select_antenna(struct rum_softc *); 190static void rum_enable_mrr(struct rum_softc *); 191static void rum_set_txpreamble(struct rum_softc *); 192static void rum_set_basicrates(struct rum_softc *); 193static void rum_select_band(struct rum_softc *, 194 struct ieee80211_channel *); 195static void rum_set_chan(struct rum_softc *, 196 struct ieee80211_channel *); 197static void rum_enable_tsf_sync(struct rum_softc *); 198static void rum_enable_tsf(struct rum_softc *); 199static void rum_update_slot(struct ifnet *); 200static void rum_set_bssid(struct rum_softc *, const uint8_t *); 201static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 202static void rum_update_mcast(struct ifnet *); 203static void rum_update_promisc(struct ifnet *); 204static void rum_setpromisc(struct rum_softc *); 205static const char *rum_get_rf(int); 206static void rum_read_eeprom(struct rum_softc *); 207static int rum_bbp_init(struct rum_softc *); 208static void rum_init_locked(struct rum_softc *); 209static void rum_init(void *); 210static void rum_stop(struct rum_softc *); 211static void rum_load_microcode(struct rum_softc *, const uint8_t *, 212 size_t); 213static void rum_prepare_beacon(struct rum_softc *, 214 struct ieee80211vap *); 215static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 216 const struct ieee80211_bpf_params *); 217static void rum_scan_start(struct ieee80211com *); 218static void rum_scan_end(struct ieee80211com *); 219static void rum_set_channel(struct ieee80211com *); 220static int rum_get_rssi(struct rum_softc *, uint8_t); 221static void rum_ratectl_start(struct rum_softc *, 222 struct ieee80211_node *); 223static void rum_ratectl_timeout(void *); 224static void rum_ratectl_task(void *, int); 225static int rum_pause(struct rum_softc *, int); 226 227static const struct { 228 uint32_t reg; 229 uint32_t val; 230} rum_def_mac[] = { 231 { RT2573_TXRX_CSR0, 0x025fb032 }, 232 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 233 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 234 { RT2573_TXRX_CSR3, 0x00858687 }, 235 { RT2573_TXRX_CSR7, 0x2e31353b }, 236 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 237 { RT2573_TXRX_CSR15, 0x0000000f }, 238 { RT2573_MAC_CSR6, 0x00000fff }, 239 { RT2573_MAC_CSR8, 0x016c030a }, 240 { RT2573_MAC_CSR10, 0x00000718 }, 241 { RT2573_MAC_CSR12, 0x00000004 }, 242 { RT2573_MAC_CSR13, 0x00007f00 }, 243 { RT2573_SEC_CSR0, 0x00000000 }, 244 { RT2573_SEC_CSR1, 0x00000000 }, 245 { RT2573_SEC_CSR5, 0x00000000 }, 246 { RT2573_PHY_CSR1, 0x000023b0 }, 247 { RT2573_PHY_CSR5, 0x00040a06 }, 248 { RT2573_PHY_CSR6, 0x00080606 }, 249 { RT2573_PHY_CSR7, 0x00000408 }, 250 { RT2573_AIFSN_CSR, 0x00002273 }, 251 { RT2573_CWMIN_CSR, 0x00002344 }, 252 { RT2573_CWMAX_CSR, 0x000034aa } 253}; 254 255static const struct { 256 uint8_t reg; 257 uint8_t val; 258} rum_def_bbp[] = { 259 { 3, 0x80 }, 260 { 15, 0x30 }, 261 { 17, 0x20 }, 262 { 21, 0xc8 }, 263 { 22, 0x38 }, 264 { 23, 0x06 }, 265 { 24, 0xfe }, 266 { 25, 0x0a }, 267 { 26, 0x0d }, 268 { 32, 0x0b }, 269 { 34, 0x12 }, 270 { 37, 0x07 }, 271 { 39, 0xf8 }, 272 { 41, 0x60 }, 273 { 53, 0x10 }, 274 { 54, 0x18 }, 275 { 60, 0x10 }, 276 { 61, 0x04 }, 277 { 62, 0x04 }, 278 { 75, 0xfe }, 279 { 86, 0xfe }, 280 { 88, 0xfe }, 281 { 90, 0x0f }, 282 { 99, 0x00 }, 283 { 102, 0x16 }, 284 { 107, 0x04 } 285}; 286 287static const struct rfprog { 288 uint8_t chan; 289 uint32_t r1, r2, r3, r4; 290} rum_rf5226[] = { 291 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 292 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 293 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 294 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 295 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 296 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 297 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 298 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 299 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 300 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 301 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 302 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 303 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 304 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 305 306 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 307 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 308 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 309 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 310 311 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 312 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 313 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 314 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 315 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 316 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 317 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 318 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 319 320 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 321 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 322 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 323 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 324 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 325 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 326 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 327 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 328 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 329 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 330 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 331 332 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 333 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 334 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 335 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 336 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 337}, rum_rf5225[] = { 338 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 339 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 340 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 341 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 342 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 343 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 344 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 345 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 346 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 347 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 348 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 349 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 350 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 351 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 352 353 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 354 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 355 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 356 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 357 358 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 359 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 360 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 361 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 362 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 363 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 364 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 365 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 366 367 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 368 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 369 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 370 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 371 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 372 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 373 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 374 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 375 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 376 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 377 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 378 379 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 380 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 381 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 382 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 383 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 384}; 385 386static const struct usb_config rum_config[RUM_N_TRANSFER] = { 387 [RUM_BULK_WR] = { 388 .type = UE_BULK, 389 .endpoint = UE_ADDR_ANY, 390 .direction = UE_DIR_OUT, 391 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 392 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 393 .callback = rum_bulk_write_callback, 394 .timeout = 5000, /* ms */ 395 }, 396 [RUM_BULK_RD] = { 397 .type = UE_BULK, 398 .endpoint = UE_ADDR_ANY, 399 .direction = UE_DIR_IN, 400 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 401 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 402 .callback = rum_bulk_read_callback, 403 }, 404}; 405 406static int 407rum_match(device_t self) 408{ 409 struct usb_attach_arg *uaa = device_get_ivars(self); 410 411 if (uaa->usb_mode != USB_MODE_HOST) 412 return (ENXIO); 413 if (uaa->info.bConfigIndex != 0) 414 return (ENXIO); 415 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 416 return (ENXIO); 417 418 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 419} 420 421static int 422rum_attach(device_t self) 423{ 424 struct usb_attach_arg *uaa = device_get_ivars(self); 425 struct rum_softc *sc = device_get_softc(self); 426 struct ieee80211com *ic; 427 struct ifnet *ifp; 428 uint8_t iface_index, bands; 429 uint32_t tmp; 430 int error, ntries; 431 432 device_set_usb_desc(self); 433 sc->sc_udev = uaa->device; 434 sc->sc_dev = self; 435 436 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 437 MTX_NETWORK_LOCK, MTX_DEF); 438 439 iface_index = RT2573_IFACE_INDEX; 440 error = usbd_transfer_setup(uaa->device, &iface_index, 441 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 442 if (error) { 443 device_printf(self, "could not allocate USB transfers, " 444 "err=%s\n", usbd_errstr(error)); 445 goto detach; 446 } 447 448 RUM_LOCK(sc); 449 /* retrieve RT2573 rev. no */ 450 for (ntries = 0; ntries < 100; ntries++) { 451 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 452 break; 453 if (rum_pause(sc, hz / 100)) 454 break; 455 } 456 if (ntries == 100) { 457 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 458 RUM_UNLOCK(sc); 459 goto detach; 460 } 461 462 /* retrieve MAC address and various other things from EEPROM */ 463 rum_read_eeprom(sc); 464 465 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 466 tmp, rum_get_rf(sc->rf_rev)); 467 468 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 469 RUM_UNLOCK(sc); 470 471 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 472 if (ifp == NULL) { 473 device_printf(sc->sc_dev, "can not if_alloc()\n"); 474 goto detach; 475 } 476 ic = ifp->if_l2com; 477 478 ifp->if_softc = sc; 479 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 480 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 481 ifp->if_init = rum_init; 482 ifp->if_ioctl = rum_ioctl; 483 ifp->if_start = rum_start; 484 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 485 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 486 IFQ_SET_READY(&ifp->if_snd); 487 488 ic->ic_ifp = ifp; 489 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 490 491 /* set device capabilities */ 492 ic->ic_caps = 493 IEEE80211_C_STA /* station mode supported */ 494 | IEEE80211_C_IBSS /* IBSS mode supported */ 495 | IEEE80211_C_MONITOR /* monitor mode supported */ 496 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 497 | IEEE80211_C_TXPMGT /* tx power management */ 498 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 499 | IEEE80211_C_SHSLOT /* short slot time supported */ 500 | IEEE80211_C_BGSCAN /* bg scanning supported */ 501 | IEEE80211_C_WPA /* 802.11i */ 502 ; 503 504 bands = 0; 505 setbit(&bands, IEEE80211_MODE_11B); 506 setbit(&bands, IEEE80211_MODE_11G); 507 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 508 setbit(&bands, IEEE80211_MODE_11A); 509 ieee80211_init_channels(ic, NULL, &bands); 510 511 ieee80211_ifattach(ic, sc->sc_bssid); 512 ic->ic_update_promisc = rum_update_promisc; 513 ic->ic_raw_xmit = rum_raw_xmit; 514 ic->ic_scan_start = rum_scan_start; 515 ic->ic_scan_end = rum_scan_end; 516 ic->ic_set_channel = rum_set_channel; 517 518 ic->ic_vap_create = rum_vap_create; 519 ic->ic_vap_delete = rum_vap_delete; 520 ic->ic_update_mcast = rum_update_mcast; 521 522 ieee80211_radiotap_attach(ic, 523 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 524 RT2573_TX_RADIOTAP_PRESENT, 525 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 526 RT2573_RX_RADIOTAP_PRESENT); 527 528 if (bootverbose) 529 ieee80211_announce(ic); 530 531 return (0); 532 533detach: 534 rum_detach(self); 535 return (ENXIO); /* failure */ 536} 537 538static int 539rum_detach(device_t self) 540{ 541 struct rum_softc *sc = device_get_softc(self); 542 struct ifnet *ifp = sc->sc_ifp; 543 struct ieee80211com *ic; 544 545 /* Prevent further ioctls */ 546 RUM_LOCK(sc); 547 sc->sc_detached = 1; 548 RUM_UNLOCK(sc); 549 550 /* stop all USB transfers */ 551 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 552 553 /* free TX list, if any */ 554 RUM_LOCK(sc); 555 rum_unsetup_tx_list(sc); 556 RUM_UNLOCK(sc); 557 558 if (ifp) { 559 ic = ifp->if_l2com; 560 ieee80211_ifdetach(ic); 561 if_free(ifp); 562 } 563 mtx_destroy(&sc->sc_mtx); 564 return (0); 565} 566 567static usb_error_t 568rum_do_request(struct rum_softc *sc, 569 struct usb_device_request *req, void *data) 570{ 571 usb_error_t err; 572 int ntries = 10; 573 574 while (ntries--) { 575 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 576 req, data, 0, NULL, 250 /* ms */); 577 if (err == 0) 578 break; 579 580 DPRINTFN(1, "Control request failed, %s (retrying)\n", 581 usbd_errstr(err)); 582 if (rum_pause(sc, hz / 100)) 583 break; 584 } 585 return (err); 586} 587 588static struct ieee80211vap * 589rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 590 enum ieee80211_opmode opmode, int flags, 591 const uint8_t bssid[IEEE80211_ADDR_LEN], 592 const uint8_t mac[IEEE80211_ADDR_LEN]) 593{ 594 struct rum_softc *sc = ic->ic_ifp->if_softc; 595 struct rum_vap *rvp; 596 struct ieee80211vap *vap; 597 598 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 599 return NULL; 600 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 601 M_80211_VAP, M_NOWAIT | M_ZERO); 602 if (rvp == NULL) 603 return NULL; 604 vap = &rvp->vap; 605 /* enable s/w bmiss handling for sta mode */ 606 ieee80211_vap_setup(ic, vap, name, unit, opmode, 607 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 608 609 /* override state transition machine */ 610 rvp->newstate = vap->iv_newstate; 611 vap->iv_newstate = rum_newstate; 612 613 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 614 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 615 ieee80211_ratectl_init(vap); 616 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 617 /* complete setup */ 618 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 619 ic->ic_opmode = opmode; 620 return vap; 621} 622 623static void 624rum_vap_delete(struct ieee80211vap *vap) 625{ 626 struct rum_vap *rvp = RUM_VAP(vap); 627 struct ieee80211com *ic = vap->iv_ic; 628 629 usb_callout_drain(&rvp->ratectl_ch); 630 ieee80211_draintask(ic, &rvp->ratectl_task); 631 ieee80211_ratectl_deinit(vap); 632 ieee80211_vap_detach(vap); 633 free(rvp, M_80211_VAP); 634} 635 636static void 637rum_tx_free(struct rum_tx_data *data, int txerr) 638{ 639 struct rum_softc *sc = data->sc; 640 641 if (data->m != NULL) { 642 if (data->m->m_flags & M_TXCB) 643 ieee80211_process_callback(data->ni, data->m, 644 txerr ? ETIMEDOUT : 0); 645 m_freem(data->m); 646 data->m = NULL; 647 648 ieee80211_free_node(data->ni); 649 data->ni = NULL; 650 } 651 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 652 sc->tx_nfree++; 653} 654 655static void 656rum_setup_tx_list(struct rum_softc *sc) 657{ 658 struct rum_tx_data *data; 659 int i; 660 661 sc->tx_nfree = 0; 662 STAILQ_INIT(&sc->tx_q); 663 STAILQ_INIT(&sc->tx_free); 664 665 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 666 data = &sc->tx_data[i]; 667 668 data->sc = sc; 669 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 670 sc->tx_nfree++; 671 } 672} 673 674static void 675rum_unsetup_tx_list(struct rum_softc *sc) 676{ 677 struct rum_tx_data *data; 678 int i; 679 680 /* make sure any subsequent use of the queues will fail */ 681 sc->tx_nfree = 0; 682 STAILQ_INIT(&sc->tx_q); 683 STAILQ_INIT(&sc->tx_free); 684 685 /* free up all node references and mbufs */ 686 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 687 data = &sc->tx_data[i]; 688 689 if (data->m != NULL) { 690 m_freem(data->m); 691 data->m = NULL; 692 } 693 if (data->ni != NULL) { 694 ieee80211_free_node(data->ni); 695 data->ni = NULL; 696 } 697 } 698} 699 700static int 701rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 702{ 703 struct rum_vap *rvp = RUM_VAP(vap); 704 struct ieee80211com *ic = vap->iv_ic; 705 struct rum_softc *sc = ic->ic_ifp->if_softc; 706 const struct ieee80211_txparam *tp; 707 enum ieee80211_state ostate; 708 struct ieee80211_node *ni; 709 uint32_t tmp; 710 711 ostate = vap->iv_state; 712 DPRINTF("%s -> %s\n", 713 ieee80211_state_name[ostate], 714 ieee80211_state_name[nstate]); 715 716 IEEE80211_UNLOCK(ic); 717 RUM_LOCK(sc); 718 usb_callout_stop(&rvp->ratectl_ch); 719 720 switch (nstate) { 721 case IEEE80211_S_INIT: 722 if (ostate == IEEE80211_S_RUN) { 723 /* abort TSF synchronization */ 724 tmp = rum_read(sc, RT2573_TXRX_CSR9); 725 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 726 } 727 break; 728 729 case IEEE80211_S_RUN: 730 ni = ieee80211_ref_node(vap->iv_bss); 731 732 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 733 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 734 RUM_UNLOCK(sc); 735 IEEE80211_LOCK(ic); 736 ieee80211_free_node(ni); 737 return (-1); 738 } 739 rum_update_slot(ic->ic_ifp); 740 rum_enable_mrr(sc); 741 rum_set_txpreamble(sc); 742 rum_set_basicrates(sc); 743 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 744 rum_set_bssid(sc, sc->sc_bssid); 745 } 746 747 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 748 vap->iv_opmode == IEEE80211_M_IBSS) 749 rum_prepare_beacon(sc, vap); 750 751 if (vap->iv_opmode != IEEE80211_M_MONITOR) 752 rum_enable_tsf_sync(sc); 753 else 754 rum_enable_tsf(sc); 755 756 /* enable automatic rate adaptation */ 757 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 758 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 759 rum_ratectl_start(sc, ni); 760 ieee80211_free_node(ni); 761 break; 762 default: 763 break; 764 } 765 RUM_UNLOCK(sc); 766 IEEE80211_LOCK(ic); 767 return (rvp->newstate(vap, nstate, arg)); 768} 769 770static void 771rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 772{ 773 struct rum_softc *sc = usbd_xfer_softc(xfer); 774 struct ifnet *ifp = sc->sc_ifp; 775 struct ieee80211vap *vap; 776 struct rum_tx_data *data; 777 struct mbuf *m; 778 struct usb_page_cache *pc; 779 unsigned int len; 780 int actlen, sumlen; 781 782 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 783 784 switch (USB_GET_STATE(xfer)) { 785 case USB_ST_TRANSFERRED: 786 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 787 788 /* free resources */ 789 data = usbd_xfer_get_priv(xfer); 790 rum_tx_free(data, 0); 791 usbd_xfer_set_priv(xfer, NULL); 792 793 ifp->if_opackets++; 794 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 795 796 /* FALLTHROUGH */ 797 case USB_ST_SETUP: 798tr_setup: 799 data = STAILQ_FIRST(&sc->tx_q); 800 if (data) { 801 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 802 m = data->m; 803 804 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 805 DPRINTFN(0, "data overflow, %u bytes\n", 806 m->m_pkthdr.len); 807 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 808 } 809 pc = usbd_xfer_get_frame(xfer, 0); 810 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 811 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 812 m->m_pkthdr.len); 813 814 vap = data->ni->ni_vap; 815 if (ieee80211_radiotap_active_vap(vap)) { 816 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 817 818 tap->wt_flags = 0; 819 tap->wt_rate = data->rate; 820 tap->wt_antenna = sc->tx_ant; 821 822 ieee80211_radiotap_tx(vap, m); 823 } 824 825 /* align end on a 4-bytes boundary */ 826 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 827 if ((len % 64) == 0) 828 len += 4; 829 830 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 831 m->m_pkthdr.len, len); 832 833 usbd_xfer_set_frame_len(xfer, 0, len); 834 usbd_xfer_set_priv(xfer, data); 835 836 usbd_transfer_submit(xfer); 837 } 838 RUM_UNLOCK(sc); 839 rum_start(ifp); 840 RUM_LOCK(sc); 841 break; 842 843 default: /* Error */ 844 DPRINTFN(11, "transfer error, %s\n", 845 usbd_errstr(error)); 846 847 ifp->if_oerrors++; 848 data = usbd_xfer_get_priv(xfer); 849 if (data != NULL) { 850 rum_tx_free(data, error); 851 usbd_xfer_set_priv(xfer, NULL); 852 } 853 854 if (error != USB_ERR_CANCELLED) { 855 if (error == USB_ERR_TIMEOUT) 856 device_printf(sc->sc_dev, "device timeout\n"); 857 858 /* 859 * Try to clear stall first, also if other 860 * errors occur, hence clearing stall 861 * introduces a 50 ms delay: 862 */ 863 usbd_xfer_set_stall(xfer); 864 goto tr_setup; 865 } 866 break; 867 } 868} 869 870static void 871rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 872{ 873 struct rum_softc *sc = usbd_xfer_softc(xfer); 874 struct ifnet *ifp = sc->sc_ifp; 875 struct ieee80211com *ic = ifp->if_l2com; 876 struct ieee80211_node *ni; 877 struct mbuf *m = NULL; 878 struct usb_page_cache *pc; 879 uint32_t flags; 880 uint8_t rssi = 0; 881 int len; 882 883 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 884 885 switch (USB_GET_STATE(xfer)) { 886 case USB_ST_TRANSFERRED: 887 888 DPRINTFN(15, "rx done, actlen=%d\n", len); 889 890 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 891 DPRINTF("%s: xfer too short %d\n", 892 device_get_nameunit(sc->sc_dev), len); 893 ifp->if_ierrors++; 894 goto tr_setup; 895 } 896 897 len -= RT2573_RX_DESC_SIZE; 898 pc = usbd_xfer_get_frame(xfer, 0); 899 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 900 901 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 902 flags = le32toh(sc->sc_rx_desc.flags); 903 if (flags & RT2573_RX_CRC_ERROR) { 904 /* 905 * This should not happen since we did not 906 * request to receive those frames when we 907 * filled RUM_TXRX_CSR2: 908 */ 909 DPRINTFN(5, "PHY or CRC error\n"); 910 ifp->if_ierrors++; 911 goto tr_setup; 912 } 913 914 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 915 if (m == NULL) { 916 DPRINTF("could not allocate mbuf\n"); 917 ifp->if_ierrors++; 918 goto tr_setup; 919 } 920 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 921 mtod(m, uint8_t *), len); 922 923 /* finalize mbuf */ 924 m->m_pkthdr.rcvif = ifp; 925 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 926 927 if (ieee80211_radiotap_active(ic)) { 928 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 929 930 /* XXX read tsf */ 931 tap->wr_flags = 0; 932 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 933 (flags & RT2573_RX_OFDM) ? 934 IEEE80211_T_OFDM : IEEE80211_T_CCK); 935 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 936 tap->wr_antnoise = RT2573_NOISE_FLOOR; 937 tap->wr_antenna = sc->rx_ant; 938 } 939 /* FALLTHROUGH */ 940 case USB_ST_SETUP: 941tr_setup: 942 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 943 usbd_transfer_submit(xfer); 944 945 /* 946 * At the end of a USB callback it is always safe to unlock 947 * the private mutex of a device! That is why we do the 948 * "ieee80211_input" here, and not some lines up! 949 */ 950 RUM_UNLOCK(sc); 951 if (m) { 952 ni = ieee80211_find_rxnode(ic, 953 mtod(m, struct ieee80211_frame_min *)); 954 if (ni != NULL) { 955 (void) ieee80211_input(ni, m, rssi, 956 RT2573_NOISE_FLOOR); 957 ieee80211_free_node(ni); 958 } else 959 (void) ieee80211_input_all(ic, m, rssi, 960 RT2573_NOISE_FLOOR); 961 } 962 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 963 !IFQ_IS_EMPTY(&ifp->if_snd)) 964 rum_start(ifp); 965 RUM_LOCK(sc); 966 return; 967 968 default: /* Error */ 969 if (error != USB_ERR_CANCELLED) { 970 /* try to clear stall first */ 971 usbd_xfer_set_stall(xfer); 972 goto tr_setup; 973 } 974 return; 975 } 976} 977 978static uint8_t 979rum_plcp_signal(int rate) 980{ 981 switch (rate) { 982 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 983 case 12: return 0xb; 984 case 18: return 0xf; 985 case 24: return 0xa; 986 case 36: return 0xe; 987 case 48: return 0x9; 988 case 72: return 0xd; 989 case 96: return 0x8; 990 case 108: return 0xc; 991 992 /* CCK rates (NB: not IEEE std, device-specific) */ 993 case 2: return 0x0; 994 case 4: return 0x1; 995 case 11: return 0x2; 996 case 22: return 0x3; 997 } 998 return 0xff; /* XXX unsupported/unknown rate */ 999} 1000 1001static void 1002rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1003 uint32_t flags, uint16_t xflags, int len, int rate) 1004{ 1005 struct ifnet *ifp = sc->sc_ifp; 1006 struct ieee80211com *ic = ifp->if_l2com; 1007 uint16_t plcp_length; 1008 int remainder; 1009 1010 desc->flags = htole32(flags); 1011 desc->flags |= htole32(RT2573_TX_VALID); 1012 desc->flags |= htole32(len << 16); 1013 1014 desc->xflags = htole16(xflags); 1015 1016 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1017 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1018 1019 /* setup PLCP fields */ 1020 desc->plcp_signal = rum_plcp_signal(rate); 1021 desc->plcp_service = 4; 1022 1023 len += IEEE80211_CRC_LEN; 1024 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1025 desc->flags |= htole32(RT2573_TX_OFDM); 1026 1027 plcp_length = len & 0xfff; 1028 desc->plcp_length_hi = plcp_length >> 6; 1029 desc->plcp_length_lo = plcp_length & 0x3f; 1030 } else { 1031 plcp_length = (16 * len + rate - 1) / rate; 1032 if (rate == 22) { 1033 remainder = (16 * len) % 22; 1034 if (remainder != 0 && remainder < 7) 1035 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1036 } 1037 desc->plcp_length_hi = plcp_length >> 8; 1038 desc->plcp_length_lo = plcp_length & 0xff; 1039 1040 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1041 desc->plcp_signal |= 0x08; 1042 } 1043} 1044 1045static int 1046rum_sendprot(struct rum_softc *sc, 1047 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1048{ 1049 struct ieee80211com *ic = ni->ni_ic; 1050 const struct ieee80211_frame *wh; 1051 struct rum_tx_data *data; 1052 struct mbuf *mprot; 1053 int protrate, ackrate, pktlen, flags, isshort; 1054 uint16_t dur; 1055 1056 RUM_LOCK_ASSERT(sc, MA_OWNED); 1057 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1058 ("protection %d", prot)); 1059 1060 wh = mtod(m, const struct ieee80211_frame *); 1061 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1062 1063 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1064 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1065 1066 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1067 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1068 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1069 flags = RT2573_TX_MORE_FRAG; 1070 if (prot == IEEE80211_PROT_RTSCTS) { 1071 /* NB: CTS is the same size as an ACK */ 1072 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1073 flags |= RT2573_TX_NEED_ACK; 1074 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1075 } else { 1076 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1077 } 1078 if (mprot == NULL) { 1079 /* XXX stat + msg */ 1080 return (ENOBUFS); 1081 } 1082 data = STAILQ_FIRST(&sc->tx_free); 1083 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1084 sc->tx_nfree--; 1085 1086 data->m = mprot; 1087 data->ni = ieee80211_ref_node(ni); 1088 data->rate = protrate; 1089 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1090 1091 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1092 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1093 1094 return 0; 1095} 1096 1097static int 1098rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1099{ 1100 struct ieee80211vap *vap = ni->ni_vap; 1101 struct ifnet *ifp = sc->sc_ifp; 1102 struct ieee80211com *ic = ifp->if_l2com; 1103 struct rum_tx_data *data; 1104 struct ieee80211_frame *wh; 1105 const struct ieee80211_txparam *tp; 1106 struct ieee80211_key *k; 1107 uint32_t flags = 0; 1108 uint16_t dur; 1109 1110 RUM_LOCK_ASSERT(sc, MA_OWNED); 1111 1112 data = STAILQ_FIRST(&sc->tx_free); 1113 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1114 sc->tx_nfree--; 1115 1116 wh = mtod(m0, struct ieee80211_frame *); 1117 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1118 k = ieee80211_crypto_encap(ni, m0); 1119 if (k == NULL) { 1120 m_freem(m0); 1121 return ENOBUFS; 1122 } 1123 wh = mtod(m0, struct ieee80211_frame *); 1124 } 1125 1126 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1127 1128 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1129 flags |= RT2573_TX_NEED_ACK; 1130 1131 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1132 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1133 *(uint16_t *)wh->i_dur = htole16(dur); 1134 1135 /* tell hardware to add timestamp for probe responses */ 1136 if ((wh->i_fc[0] & 1137 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1138 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1139 flags |= RT2573_TX_TIMESTAMP; 1140 } 1141 1142 data->m = m0; 1143 data->ni = ni; 1144 data->rate = tp->mgmtrate; 1145 1146 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1147 1148 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1149 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1150 1151 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1152 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1153 1154 return (0); 1155} 1156 1157static int 1158rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1159 const struct ieee80211_bpf_params *params) 1160{ 1161 struct ieee80211com *ic = ni->ni_ic; 1162 struct rum_tx_data *data; 1163 uint32_t flags; 1164 int rate, error; 1165 1166 RUM_LOCK_ASSERT(sc, MA_OWNED); 1167 KASSERT(params != NULL, ("no raw xmit params")); 1168 1169 rate = params->ibp_rate0; 1170 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1171 m_freem(m0); 1172 return EINVAL; 1173 } 1174 flags = 0; 1175 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1176 flags |= RT2573_TX_NEED_ACK; 1177 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1178 error = rum_sendprot(sc, m0, ni, 1179 params->ibp_flags & IEEE80211_BPF_RTS ? 1180 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1181 rate); 1182 if (error || sc->tx_nfree == 0) { 1183 m_freem(m0); 1184 return ENOBUFS; 1185 } 1186 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1187 } 1188 1189 data = STAILQ_FIRST(&sc->tx_free); 1190 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1191 sc->tx_nfree--; 1192 1193 data->m = m0; 1194 data->ni = ni; 1195 data->rate = rate; 1196 1197 /* XXX need to setup descriptor ourself */ 1198 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1199 1200 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1201 m0->m_pkthdr.len, rate); 1202 1203 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1204 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1205 1206 return 0; 1207} 1208 1209static int 1210rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1211{ 1212 struct ieee80211vap *vap = ni->ni_vap; 1213 struct ifnet *ifp = sc->sc_ifp; 1214 struct ieee80211com *ic = ifp->if_l2com; 1215 struct rum_tx_data *data; 1216 struct ieee80211_frame *wh; 1217 const struct ieee80211_txparam *tp; 1218 struct ieee80211_key *k; 1219 uint32_t flags = 0; 1220 uint16_t dur; 1221 int error, rate; 1222 1223 RUM_LOCK_ASSERT(sc, MA_OWNED); 1224 1225 wh = mtod(m0, struct ieee80211_frame *); 1226 1227 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1228 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1229 rate = tp->mcastrate; 1230 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1231 rate = tp->ucastrate; 1232 else 1233 rate = ni->ni_txrate; 1234 1235 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1236 k = ieee80211_crypto_encap(ni, m0); 1237 if (k == NULL) { 1238 m_freem(m0); 1239 return ENOBUFS; 1240 } 1241 1242 /* packet header may have moved, reset our local pointer */ 1243 wh = mtod(m0, struct ieee80211_frame *); 1244 } 1245 1246 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1247 int prot = IEEE80211_PROT_NONE; 1248 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1249 prot = IEEE80211_PROT_RTSCTS; 1250 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1251 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1252 prot = ic->ic_protmode; 1253 if (prot != IEEE80211_PROT_NONE) { 1254 error = rum_sendprot(sc, m0, ni, prot, rate); 1255 if (error || sc->tx_nfree == 0) { 1256 m_freem(m0); 1257 return ENOBUFS; 1258 } 1259 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1260 } 1261 } 1262 1263 data = STAILQ_FIRST(&sc->tx_free); 1264 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1265 sc->tx_nfree--; 1266 1267 data->m = m0; 1268 data->ni = ni; 1269 data->rate = rate; 1270 1271 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1272 flags |= RT2573_TX_NEED_ACK; 1273 flags |= RT2573_TX_MORE_FRAG; 1274 1275 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1276 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1277 *(uint16_t *)wh->i_dur = htole16(dur); 1278 } 1279 1280 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1281 1282 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1283 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1284 1285 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1286 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1287 1288 return 0; 1289} 1290 1291static void 1292rum_start(struct ifnet *ifp) 1293{ 1294 struct rum_softc *sc = ifp->if_softc; 1295 struct ieee80211_node *ni; 1296 struct mbuf *m; 1297 1298 RUM_LOCK(sc); 1299 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1300 RUM_UNLOCK(sc); 1301 return; 1302 } 1303 for (;;) { 1304 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1305 if (m == NULL) 1306 break; 1307 if (sc->tx_nfree < RUM_TX_MINFREE) { 1308 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1309 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1310 break; 1311 } 1312 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1313 if (rum_tx_data(sc, m, ni) != 0) { 1314 ieee80211_free_node(ni); 1315 ifp->if_oerrors++; 1316 break; 1317 } 1318 } 1319 RUM_UNLOCK(sc); 1320} 1321 1322static int 1323rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1324{ 1325 struct rum_softc *sc = ifp->if_softc; 1326 struct ieee80211com *ic = ifp->if_l2com; 1327 struct ifreq *ifr = (struct ifreq *) data; 1328 int error; 1329 int startall = 0; 1330 1331 RUM_LOCK(sc); 1332 error = sc->sc_detached ? ENXIO : 0; 1333 RUM_UNLOCK(sc); 1334 if (error) 1335 return (error); 1336 1337 switch (cmd) { 1338 case SIOCSIFFLAGS: 1339 RUM_LOCK(sc); 1340 if (ifp->if_flags & IFF_UP) { 1341 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1342 rum_init_locked(sc); 1343 startall = 1; 1344 } else 1345 rum_setpromisc(sc); 1346 } else { 1347 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1348 rum_stop(sc); 1349 } 1350 RUM_UNLOCK(sc); 1351 if (startall) 1352 ieee80211_start_all(ic); 1353 break; 1354 case SIOCGIFMEDIA: 1355 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1356 break; 1357 case SIOCGIFADDR: 1358 error = ether_ioctl(ifp, cmd, data); 1359 break; 1360 default: 1361 error = EINVAL; 1362 break; 1363 } 1364 return error; 1365} 1366 1367static void 1368rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1369{ 1370 struct usb_device_request req; 1371 usb_error_t error; 1372 1373 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1374 req.bRequest = RT2573_READ_EEPROM; 1375 USETW(req.wValue, 0); 1376 USETW(req.wIndex, addr); 1377 USETW(req.wLength, len); 1378 1379 error = rum_do_request(sc, &req, buf); 1380 if (error != 0) { 1381 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1382 usbd_errstr(error)); 1383 } 1384} 1385 1386static uint32_t 1387rum_read(struct rum_softc *sc, uint16_t reg) 1388{ 1389 uint32_t val; 1390 1391 rum_read_multi(sc, reg, &val, sizeof val); 1392 1393 return le32toh(val); 1394} 1395 1396static void 1397rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1398{ 1399 struct usb_device_request req; 1400 usb_error_t error; 1401 1402 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1403 req.bRequest = RT2573_READ_MULTI_MAC; 1404 USETW(req.wValue, 0); 1405 USETW(req.wIndex, reg); 1406 USETW(req.wLength, len); 1407 1408 error = rum_do_request(sc, &req, buf); 1409 if (error != 0) { 1410 device_printf(sc->sc_dev, 1411 "could not multi read MAC register: %s\n", 1412 usbd_errstr(error)); 1413 } 1414} 1415 1416static usb_error_t 1417rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1418{ 1419 uint32_t tmp = htole32(val); 1420 1421 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1422} 1423 1424static usb_error_t 1425rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1426{ 1427 struct usb_device_request req; 1428 usb_error_t error; 1429 size_t offset; 1430 1431 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1432 req.bRequest = RT2573_WRITE_MULTI_MAC; 1433 USETW(req.wValue, 0); 1434 1435 /* write at most 64 bytes at a time */ 1436 for (offset = 0; offset < len; offset += 64) { 1437 USETW(req.wIndex, reg + offset); 1438 USETW(req.wLength, MIN(len - offset, 64)); 1439 1440 error = rum_do_request(sc, &req, (char *)buf + offset); 1441 if (error != 0) { 1442 device_printf(sc->sc_dev, 1443 "could not multi write MAC register: %s\n", 1444 usbd_errstr(error)); 1445 return (error); 1446 } 1447 } 1448 1449 return (USB_ERR_NORMAL_COMPLETION); 1450} 1451 1452static void 1453rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1454{ 1455 uint32_t tmp; 1456 int ntries; 1457 1458 DPRINTFN(2, "reg=0x%08x\n", reg); 1459 1460 for (ntries = 0; ntries < 100; ntries++) { 1461 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1462 break; 1463 if (rum_pause(sc, hz / 100)) 1464 break; 1465 } 1466 if (ntries == 100) { 1467 device_printf(sc->sc_dev, "could not write to BBP\n"); 1468 return; 1469 } 1470 1471 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1472 rum_write(sc, RT2573_PHY_CSR3, tmp); 1473} 1474 1475static uint8_t 1476rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1477{ 1478 uint32_t val; 1479 int ntries; 1480 1481 DPRINTFN(2, "reg=0x%08x\n", reg); 1482 1483 for (ntries = 0; ntries < 100; ntries++) { 1484 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1485 break; 1486 if (rum_pause(sc, hz / 100)) 1487 break; 1488 } 1489 if (ntries == 100) { 1490 device_printf(sc->sc_dev, "could not read BBP\n"); 1491 return 0; 1492 } 1493 1494 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1495 rum_write(sc, RT2573_PHY_CSR3, val); 1496 1497 for (ntries = 0; ntries < 100; ntries++) { 1498 val = rum_read(sc, RT2573_PHY_CSR3); 1499 if (!(val & RT2573_BBP_BUSY)) 1500 return val & 0xff; 1501 if (rum_pause(sc, hz / 100)) 1502 break; 1503 } 1504 1505 device_printf(sc->sc_dev, "could not read BBP\n"); 1506 return 0; 1507} 1508 1509static void 1510rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1511{ 1512 uint32_t tmp; 1513 int ntries; 1514 1515 for (ntries = 0; ntries < 100; ntries++) { 1516 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1517 break; 1518 if (rum_pause(sc, hz / 100)) 1519 break; 1520 } 1521 if (ntries == 100) { 1522 device_printf(sc->sc_dev, "could not write to RF\n"); 1523 return; 1524 } 1525 1526 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1527 (reg & 3); 1528 rum_write(sc, RT2573_PHY_CSR4, tmp); 1529 1530 /* remember last written value in sc */ 1531 sc->rf_regs[reg] = val; 1532 1533 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1534} 1535 1536static void 1537rum_select_antenna(struct rum_softc *sc) 1538{ 1539 uint8_t bbp4, bbp77; 1540 uint32_t tmp; 1541 1542 bbp4 = rum_bbp_read(sc, 4); 1543 bbp77 = rum_bbp_read(sc, 77); 1544 1545 /* TBD */ 1546 1547 /* make sure Rx is disabled before switching antenna */ 1548 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1549 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1550 1551 rum_bbp_write(sc, 4, bbp4); 1552 rum_bbp_write(sc, 77, bbp77); 1553 1554 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1555} 1556 1557/* 1558 * Enable multi-rate retries for frames sent at OFDM rates. 1559 * In 802.11b/g mode, allow fallback to CCK rates. 1560 */ 1561static void 1562rum_enable_mrr(struct rum_softc *sc) 1563{ 1564 struct ifnet *ifp = sc->sc_ifp; 1565 struct ieee80211com *ic = ifp->if_l2com; 1566 uint32_t tmp; 1567 1568 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1569 1570 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1571 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1572 tmp |= RT2573_MRR_CCK_FALLBACK; 1573 tmp |= RT2573_MRR_ENABLED; 1574 1575 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1576} 1577 1578static void 1579rum_set_txpreamble(struct rum_softc *sc) 1580{ 1581 struct ifnet *ifp = sc->sc_ifp; 1582 struct ieee80211com *ic = ifp->if_l2com; 1583 uint32_t tmp; 1584 1585 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1586 1587 tmp &= ~RT2573_SHORT_PREAMBLE; 1588 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1589 tmp |= RT2573_SHORT_PREAMBLE; 1590 1591 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1592} 1593 1594static void 1595rum_set_basicrates(struct rum_softc *sc) 1596{ 1597 struct ifnet *ifp = sc->sc_ifp; 1598 struct ieee80211com *ic = ifp->if_l2com; 1599 1600 /* update basic rate set */ 1601 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1602 /* 11b basic rates: 1, 2Mbps */ 1603 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1604 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1605 /* 11a basic rates: 6, 12, 24Mbps */ 1606 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1607 } else { 1608 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1609 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1610 } 1611} 1612 1613/* 1614 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1615 * driver. 1616 */ 1617static void 1618rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1619{ 1620 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1621 uint32_t tmp; 1622 1623 /* update all BBP registers that depend on the band */ 1624 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1625 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1626 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1627 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1628 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1629 } 1630 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1631 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1632 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1633 } 1634 1635 sc->bbp17 = bbp17; 1636 rum_bbp_write(sc, 17, bbp17); 1637 rum_bbp_write(sc, 96, bbp96); 1638 rum_bbp_write(sc, 104, bbp104); 1639 1640 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1641 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1642 rum_bbp_write(sc, 75, 0x80); 1643 rum_bbp_write(sc, 86, 0x80); 1644 rum_bbp_write(sc, 88, 0x80); 1645 } 1646 1647 rum_bbp_write(sc, 35, bbp35); 1648 rum_bbp_write(sc, 97, bbp97); 1649 rum_bbp_write(sc, 98, bbp98); 1650 1651 tmp = rum_read(sc, RT2573_PHY_CSR0); 1652 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1653 if (IEEE80211_IS_CHAN_2GHZ(c)) 1654 tmp |= RT2573_PA_PE_2GHZ; 1655 else 1656 tmp |= RT2573_PA_PE_5GHZ; 1657 rum_write(sc, RT2573_PHY_CSR0, tmp); 1658} 1659 1660static void 1661rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1662{ 1663 struct ifnet *ifp = sc->sc_ifp; 1664 struct ieee80211com *ic = ifp->if_l2com; 1665 const struct rfprog *rfprog; 1666 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1667 int8_t power; 1668 int i, chan; 1669 1670 chan = ieee80211_chan2ieee(ic, c); 1671 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1672 return; 1673 1674 /* select the appropriate RF settings based on what EEPROM says */ 1675 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1676 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1677 1678 /* find the settings for this channel (we know it exists) */ 1679 for (i = 0; rfprog[i].chan != chan; i++); 1680 1681 power = sc->txpow[i]; 1682 if (power < 0) { 1683 bbp94 += power; 1684 power = 0; 1685 } else if (power > 31) { 1686 bbp94 += power - 31; 1687 power = 31; 1688 } 1689 1690 /* 1691 * If we are switching from the 2GHz band to the 5GHz band or 1692 * vice-versa, BBP registers need to be reprogrammed. 1693 */ 1694 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1695 rum_select_band(sc, c); 1696 rum_select_antenna(sc); 1697 } 1698 ic->ic_curchan = c; 1699 1700 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1701 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1702 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1703 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1704 1705 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1706 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1707 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1708 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 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_pause(sc, hz / 100); 1716 1717 /* enable smart mode for MIMO-capable RFs */ 1718 bbp3 = rum_bbp_read(sc, 3); 1719 1720 bbp3 &= ~RT2573_SMART_MODE; 1721 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1722 bbp3 |= RT2573_SMART_MODE; 1723 1724 rum_bbp_write(sc, 3, bbp3); 1725 1726 if (bbp94 != RT2573_BBPR94_DEFAULT) 1727 rum_bbp_write(sc, 94, bbp94); 1728 1729 /* give the chip some extra time to do the switchover */ 1730 rum_pause(sc, hz / 100); 1731} 1732 1733/* 1734 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1735 * and HostAP operating modes. 1736 */ 1737static void 1738rum_enable_tsf_sync(struct rum_softc *sc) 1739{ 1740 struct ifnet *ifp = sc->sc_ifp; 1741 struct ieee80211com *ic = ifp->if_l2com; 1742 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1743 uint32_t tmp; 1744 1745 if (vap->iv_opmode != IEEE80211_M_STA) { 1746 /* 1747 * Change default 16ms TBTT adjustment to 8ms. 1748 * Must be done before enabling beacon generation. 1749 */ 1750 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1751 } 1752 1753 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1754 1755 /* set beacon interval (in 1/16ms unit) */ 1756 tmp |= vap->iv_bss->ni_intval * 16; 1757 1758 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1759 if (vap->iv_opmode == IEEE80211_M_STA) 1760 tmp |= RT2573_TSF_MODE(1); 1761 else 1762 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1763 1764 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1765} 1766 1767static void 1768rum_enable_tsf(struct rum_softc *sc) 1769{ 1770 rum_write(sc, RT2573_TXRX_CSR9, 1771 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1772 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1773} 1774 1775static void 1776rum_update_slot(struct ifnet *ifp) 1777{ 1778 struct rum_softc *sc = ifp->if_softc; 1779 struct ieee80211com *ic = ifp->if_l2com; 1780 uint8_t slottime; 1781 uint32_t tmp; 1782 1783 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1784 1785 tmp = rum_read(sc, RT2573_MAC_CSR9); 1786 tmp = (tmp & ~0xff) | slottime; 1787 rum_write(sc, RT2573_MAC_CSR9, tmp); 1788 1789 DPRINTF("setting slot time to %uus\n", slottime); 1790} 1791 1792static void 1793rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1794{ 1795 uint32_t tmp; 1796 1797 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1798 rum_write(sc, RT2573_MAC_CSR4, tmp); 1799 1800 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1801 rum_write(sc, RT2573_MAC_CSR5, tmp); 1802} 1803 1804static void 1805rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1806{ 1807 uint32_t tmp; 1808 1809 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1810 rum_write(sc, RT2573_MAC_CSR2, tmp); 1811 1812 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1813 rum_write(sc, RT2573_MAC_CSR3, tmp); 1814} 1815 1816static void 1817rum_setpromisc(struct rum_softc *sc) 1818{ 1819 struct ifnet *ifp = sc->sc_ifp; 1820 uint32_t tmp; 1821 1822 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1823 1824 tmp &= ~RT2573_DROP_NOT_TO_ME; 1825 if (!(ifp->if_flags & IFF_PROMISC)) 1826 tmp |= RT2573_DROP_NOT_TO_ME; 1827 1828 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1829 1830 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1831 "entering" : "leaving"); 1832} 1833 1834static void 1835rum_update_promisc(struct ifnet *ifp) 1836{ 1837 struct rum_softc *sc = ifp->if_softc; 1838 1839 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1840 return; 1841 1842 RUM_LOCK(sc); 1843 rum_setpromisc(sc); 1844 RUM_UNLOCK(sc); 1845} 1846 1847static void 1848rum_update_mcast(struct ifnet *ifp) 1849{ 1850 static int warning_printed; 1851 1852 if (warning_printed == 0) { 1853 if_printf(ifp, "need to implement %s\n", __func__); 1854 warning_printed = 1; 1855 } 1856} 1857 1858static const char * 1859rum_get_rf(int rev) 1860{ 1861 switch (rev) { 1862 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1863 case RT2573_RF_2528: return "RT2528"; 1864 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1865 case RT2573_RF_5226: return "RT5226"; 1866 default: return "unknown"; 1867 } 1868} 1869 1870static void 1871rum_read_eeprom(struct rum_softc *sc) 1872{ 1873 uint16_t val; 1874#ifdef RUM_DEBUG 1875 int i; 1876#endif 1877 1878 /* read MAC address */ 1879 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1880 1881 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1882 val = le16toh(val); 1883 sc->rf_rev = (val >> 11) & 0x1f; 1884 sc->hw_radio = (val >> 10) & 0x1; 1885 sc->rx_ant = (val >> 4) & 0x3; 1886 sc->tx_ant = (val >> 2) & 0x3; 1887 sc->nb_ant = val & 0x3; 1888 1889 DPRINTF("RF revision=%d\n", sc->rf_rev); 1890 1891 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1892 val = le16toh(val); 1893 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1894 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1895 1896 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1897 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1898 1899 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1900 val = le16toh(val); 1901 if ((val & 0xff) != 0xff) 1902 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1903 1904 /* Only [-10, 10] is valid */ 1905 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1906 sc->rssi_2ghz_corr = 0; 1907 1908 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1909 val = le16toh(val); 1910 if ((val & 0xff) != 0xff) 1911 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1912 1913 /* Only [-10, 10] is valid */ 1914 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1915 sc->rssi_5ghz_corr = 0; 1916 1917 if (sc->ext_2ghz_lna) 1918 sc->rssi_2ghz_corr -= 14; 1919 if (sc->ext_5ghz_lna) 1920 sc->rssi_5ghz_corr -= 14; 1921 1922 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1923 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1924 1925 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1926 val = le16toh(val); 1927 if ((val & 0xff) != 0xff) 1928 sc->rffreq = val & 0xff; 1929 1930 DPRINTF("RF freq=%d\n", sc->rffreq); 1931 1932 /* read Tx power for all a/b/g channels */ 1933 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1934 /* XXX default Tx power for 802.11a channels */ 1935 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1936#ifdef RUM_DEBUG 1937 for (i = 0; i < 14; i++) 1938 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1939#endif 1940 1941 /* read default values for BBP registers */ 1942 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1943#ifdef RUM_DEBUG 1944 for (i = 0; i < 14; i++) { 1945 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1946 continue; 1947 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1948 sc->bbp_prom[i].val); 1949 } 1950#endif 1951} 1952 1953static int 1954rum_bbp_init(struct rum_softc *sc) 1955{ 1956 int i, ntries; 1957 1958 /* wait for BBP to be ready */ 1959 for (ntries = 0; ntries < 100; ntries++) { 1960 const uint8_t val = rum_bbp_read(sc, 0); 1961 if (val != 0 && val != 0xff) 1962 break; 1963 if (rum_pause(sc, hz / 100)) 1964 break; 1965 } 1966 if (ntries == 100) { 1967 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1968 return EIO; 1969 } 1970 1971 /* initialize BBP registers to default values */ 1972 for (i = 0; i < N(rum_def_bbp); i++) 1973 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1974 1975 /* write vendor-specific BBP values (from EEPROM) */ 1976 for (i = 0; i < 16; i++) { 1977 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1978 continue; 1979 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1980 } 1981 1982 return 0; 1983} 1984 1985static void 1986rum_init_locked(struct rum_softc *sc) 1987{ 1988 struct ifnet *ifp = sc->sc_ifp; 1989 struct ieee80211com *ic = ifp->if_l2com; 1990 uint32_t tmp; 1991 usb_error_t error; 1992 int i, ntries; 1993 1994 RUM_LOCK_ASSERT(sc, MA_OWNED); 1995 1996 rum_stop(sc); 1997 1998 /* initialize MAC registers to default values */ 1999 for (i = 0; i < N(rum_def_mac); i++) 2000 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2001 2002 /* set host ready */ 2003 rum_write(sc, RT2573_MAC_CSR1, 3); 2004 rum_write(sc, RT2573_MAC_CSR1, 0); 2005 2006 /* wait for BBP/RF to wakeup */ 2007 for (ntries = 0; ntries < 100; ntries++) { 2008 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2009 break; 2010 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2011 if (rum_pause(sc, hz / 100)) 2012 break; 2013 } 2014 if (ntries == 100) { 2015 device_printf(sc->sc_dev, 2016 "timeout waiting for BBP/RF to wakeup\n"); 2017 goto fail; 2018 } 2019 2020 if ((error = rum_bbp_init(sc)) != 0) 2021 goto fail; 2022 2023 /* select default channel */ 2024 rum_select_band(sc, ic->ic_curchan); 2025 rum_select_antenna(sc); 2026 rum_set_chan(sc, ic->ic_curchan); 2027 2028 /* clear STA registers */ 2029 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2030 2031 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2032 2033 /* initialize ASIC */ 2034 rum_write(sc, RT2573_MAC_CSR1, 4); 2035 2036 /* 2037 * Allocate Tx and Rx xfer queues. 2038 */ 2039 rum_setup_tx_list(sc); 2040 2041 /* update Rx filter */ 2042 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2043 2044 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2045 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2046 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2047 RT2573_DROP_ACKCTS; 2048 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2049 tmp |= RT2573_DROP_TODS; 2050 if (!(ifp->if_flags & IFF_PROMISC)) 2051 tmp |= RT2573_DROP_NOT_TO_ME; 2052 } 2053 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2054 2055 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2056 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2057 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2058 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2059 return; 2060 2061fail: rum_stop(sc); 2062#undef N 2063} 2064 2065static void 2066rum_init(void *priv) 2067{ 2068 struct rum_softc *sc = priv; 2069 struct ifnet *ifp = sc->sc_ifp; 2070 struct ieee80211com *ic = ifp->if_l2com; 2071 2072 RUM_LOCK(sc); 2073 rum_init_locked(sc); 2074 RUM_UNLOCK(sc); 2075 2076 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2077 ieee80211_start_all(ic); /* start all vap's */ 2078} 2079 2080static void 2081rum_stop(struct rum_softc *sc) 2082{ 2083 struct ifnet *ifp = sc->sc_ifp; 2084 uint32_t tmp; 2085 2086 RUM_LOCK_ASSERT(sc, MA_OWNED); 2087 2088 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2089 2090 RUM_UNLOCK(sc); 2091 2092 /* 2093 * Drain the USB transfers, if not already drained: 2094 */ 2095 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2096 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2097 2098 RUM_LOCK(sc); 2099 2100 rum_unsetup_tx_list(sc); 2101 2102 /* disable Rx */ 2103 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2104 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2105 2106 /* reset ASIC */ 2107 rum_write(sc, RT2573_MAC_CSR1, 3); 2108 rum_write(sc, RT2573_MAC_CSR1, 0); 2109} 2110 2111static void 2112rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2113{ 2114 struct usb_device_request req; 2115 uint16_t reg = RT2573_MCU_CODE_BASE; 2116 usb_error_t err; 2117 2118 /* copy firmware image into NIC */ 2119 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2120 err = rum_write(sc, reg, UGETDW(ucode)); 2121 if (err) { 2122 /* firmware already loaded ? */ 2123 device_printf(sc->sc_dev, "Firmware load " 2124 "failure! (ignored)\n"); 2125 break; 2126 } 2127 } 2128 2129 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2130 req.bRequest = RT2573_MCU_CNTL; 2131 USETW(req.wValue, RT2573_MCU_RUN); 2132 USETW(req.wIndex, 0); 2133 USETW(req.wLength, 0); 2134 2135 err = rum_do_request(sc, &req, NULL); 2136 if (err != 0) { 2137 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2138 usbd_errstr(err)); 2139 } 2140 2141 /* give the chip some time to boot */ 2142 rum_pause(sc, hz / 8); 2143} 2144 2145static void 2146rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2147{ 2148 struct ieee80211com *ic = vap->iv_ic; 2149 const struct ieee80211_txparam *tp; 2150 struct rum_tx_desc desc; 2151 struct mbuf *m0; 2152 2153 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2154 return; 2155 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2156 return; 2157 2158 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2159 if (m0 == NULL) 2160 return; 2161 2162 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2163 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2164 m0->m_pkthdr.len, tp->mgmtrate); 2165 2166 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2167 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2168 2169 /* copy beacon header and payload into NIC memory */ 2170 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2171 m0->m_pkthdr.len); 2172 2173 m_freem(m0); 2174} 2175 2176static int 2177rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2178 const struct ieee80211_bpf_params *params) 2179{ 2180 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2181 struct rum_softc *sc = ifp->if_softc; 2182 2183 RUM_LOCK(sc); 2184 /* prevent management frames from being sent if we're not ready */ 2185 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2186 RUM_UNLOCK(sc); 2187 m_freem(m); 2188 ieee80211_free_node(ni); 2189 return ENETDOWN; 2190 } 2191 if (sc->tx_nfree < RUM_TX_MINFREE) { 2192 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2193 RUM_UNLOCK(sc); 2194 m_freem(m); 2195 ieee80211_free_node(ni); 2196 return EIO; 2197 } 2198 2199 ifp->if_opackets++; 2200 2201 if (params == NULL) { 2202 /* 2203 * Legacy path; interpret frame contents to decide 2204 * precisely how to send the frame. 2205 */ 2206 if (rum_tx_mgt(sc, m, ni) != 0) 2207 goto bad; 2208 } else { 2209 /* 2210 * Caller supplied explicit parameters to use in 2211 * sending the frame. 2212 */ 2213 if (rum_tx_raw(sc, m, ni, params) != 0) 2214 goto bad; 2215 } 2216 RUM_UNLOCK(sc); 2217 2218 return 0; 2219bad: 2220 ifp->if_oerrors++; 2221 RUM_UNLOCK(sc); 2222 ieee80211_free_node(ni); 2223 return EIO; 2224} 2225 2226static void 2227rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2228{ 2229 struct ieee80211vap *vap = ni->ni_vap; 2230 struct rum_vap *rvp = RUM_VAP(vap); 2231 2232 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2233 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2234 2235 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2236} 2237 2238static void 2239rum_ratectl_timeout(void *arg) 2240{ 2241 struct rum_vap *rvp = arg; 2242 struct ieee80211vap *vap = &rvp->vap; 2243 struct ieee80211com *ic = vap->iv_ic; 2244 2245 ieee80211_runtask(ic, &rvp->ratectl_task); 2246} 2247 2248static void 2249rum_ratectl_task(void *arg, int pending) 2250{ 2251 struct rum_vap *rvp = arg; 2252 struct ieee80211vap *vap = &rvp->vap; 2253 struct ieee80211com *ic = vap->iv_ic; 2254 struct ifnet *ifp = ic->ic_ifp; 2255 struct rum_softc *sc = ifp->if_softc; 2256 struct ieee80211_node *ni; 2257 int ok, fail; 2258 int sum, retrycnt; 2259 2260 RUM_LOCK(sc); 2261 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2262 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2263 2264 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2265 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2266 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2267 sum = ok+fail; 2268 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2269 2270 ni = ieee80211_ref_node(vap->iv_bss); 2271 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2272 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2273 ieee80211_free_node(ni); 2274 2275 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2276 2277 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2278 RUM_UNLOCK(sc); 2279} 2280 2281static void 2282rum_scan_start(struct ieee80211com *ic) 2283{ 2284 struct ifnet *ifp = ic->ic_ifp; 2285 struct rum_softc *sc = ifp->if_softc; 2286 uint32_t tmp; 2287 2288 RUM_LOCK(sc); 2289 /* abort TSF synchronization */ 2290 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2291 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2292 rum_set_bssid(sc, ifp->if_broadcastaddr); 2293 RUM_UNLOCK(sc); 2294 2295} 2296 2297static void 2298rum_scan_end(struct ieee80211com *ic) 2299{ 2300 struct rum_softc *sc = ic->ic_ifp->if_softc; 2301 2302 RUM_LOCK(sc); 2303 rum_enable_tsf_sync(sc); 2304 rum_set_bssid(sc, sc->sc_bssid); 2305 RUM_UNLOCK(sc); 2306 2307} 2308 2309static void 2310rum_set_channel(struct ieee80211com *ic) 2311{ 2312 struct rum_softc *sc = ic->ic_ifp->if_softc; 2313 2314 RUM_LOCK(sc); 2315 rum_set_chan(sc, ic->ic_curchan); 2316 RUM_UNLOCK(sc); 2317} 2318 2319static int 2320rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2321{ 2322 struct ifnet *ifp = sc->sc_ifp; 2323 struct ieee80211com *ic = ifp->if_l2com; 2324 int lna, agc, rssi; 2325 2326 lna = (raw >> 5) & 0x3; 2327 agc = raw & 0x1f; 2328 2329 if (lna == 0) { 2330 /* 2331 * No RSSI mapping 2332 * 2333 * NB: Since RSSI is relative to noise floor, -1 is 2334 * adequate for caller to know error happened. 2335 */ 2336 return -1; 2337 } 2338 2339 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2340 2341 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2342 rssi += sc->rssi_2ghz_corr; 2343 2344 if (lna == 1) 2345 rssi -= 64; 2346 else if (lna == 2) 2347 rssi -= 74; 2348 else if (lna == 3) 2349 rssi -= 90; 2350 } else { 2351 rssi += sc->rssi_5ghz_corr; 2352 2353 if (!sc->ext_5ghz_lna && lna != 1) 2354 rssi += 4; 2355 2356 if (lna == 1) 2357 rssi -= 64; 2358 else if (lna == 2) 2359 rssi -= 86; 2360 else if (lna == 3) 2361 rssi -= 100; 2362 } 2363 return rssi; 2364} 2365 2366static int 2367rum_pause(struct rum_softc *sc, int timeout) 2368{ 2369 2370 usb_pause_mtx(&sc->sc_mtx, timeout); 2371 return (0); 2372} 2373 2374static device_method_t rum_methods[] = { 2375 /* Device interface */ 2376 DEVMETHOD(device_probe, rum_match), 2377 DEVMETHOD(device_attach, rum_attach), 2378 DEVMETHOD(device_detach, rum_detach), 2379 DEVMETHOD_END 2380}; 2381 2382static driver_t rum_driver = { 2383 .name = "rum", 2384 .methods = rum_methods, 2385 .size = sizeof(struct rum_softc), 2386}; 2387 2388static devclass_t rum_devclass; 2389 2390DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2391MODULE_DEPEND(rum, wlan, 1, 1, 1); 2392MODULE_DEPEND(rum, usb, 1, 1, 1); 2393MODULE_VERSION(rum, 1); 2394