if_rum.c revision 288531
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288531 2015-10-03 05:44:05Z adrian $ */ 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 288531 2015-10-03 05:44:05Z adrian $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include <sys/param.h> 30#include <sys/sockio.h> 31#include <sys/sysctl.h> 32#include <sys/lock.h> 33#include <sys/mutex.h> 34#include <sys/mbuf.h> 35#include <sys/kernel.h> 36#include <sys/socket.h> 37#include <sys/systm.h> 38#include <sys/malloc.h> 39#include <sys/module.h> 40#include <sys/bus.h> 41#include <sys/endian.h> 42#include <sys/kdb.h> 43 44#include <machine/bus.h> 45#include <machine/resource.h> 46#include <sys/rman.h> 47 48#include <net/bpf.h> 49#include <net/if.h> 50#include <net/if_var.h> 51#include <net/if_arp.h> 52#include <net/ethernet.h> 53#include <net/if_dl.h> 54#include <net/if_media.h> 55#include <net/if_types.h> 56 57#ifdef INET 58#include <netinet/in.h> 59#include <netinet/in_systm.h> 60#include <netinet/in_var.h> 61#include <netinet/if_ether.h> 62#include <netinet/ip.h> 63#endif 64 65#include <net80211/ieee80211_var.h> 66#include <net80211/ieee80211_regdomain.h> 67#include <net80211/ieee80211_radiotap.h> 68#include <net80211/ieee80211_ratectl.h> 69 70#include <dev/usb/usb.h> 71#include <dev/usb/usbdi.h> 72#include "usbdevs.h" 73 74#define USB_DEBUG_VAR rum_debug 75#include <dev/usb/usb_debug.h> 76 77#include <dev/usb/wlan/if_rumreg.h> 78#include <dev/usb/wlan/if_rumvar.h> 79#include <dev/usb/wlan/if_rumfw.h> 80 81#ifdef USB_DEBUG 82static int rum_debug = 0; 83 84static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 85SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0, 86 "Debug level"); 87#endif 88 89static const STRUCT_USB_HOST_ID rum_devs[] = { 90#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 91 RUM_DEV(ABOCOM, HWU54DM), 92 RUM_DEV(ABOCOM, RT2573_2), 93 RUM_DEV(ABOCOM, RT2573_3), 94 RUM_DEV(ABOCOM, RT2573_4), 95 RUM_DEV(ABOCOM, WUG2700), 96 RUM_DEV(AMIT, CGWLUSB2GO), 97 RUM_DEV(ASUS, RT2573_1), 98 RUM_DEV(ASUS, RT2573_2), 99 RUM_DEV(BELKIN, F5D7050A), 100 RUM_DEV(BELKIN, F5D9050V3), 101 RUM_DEV(CISCOLINKSYS, WUSB54GC), 102 RUM_DEV(CISCOLINKSYS, WUSB54GR), 103 RUM_DEV(CONCEPTRONIC2, C54RU2), 104 RUM_DEV(COREGA, CGWLUSB2GL), 105 RUM_DEV(COREGA, CGWLUSB2GPX), 106 RUM_DEV(DICKSMITH, CWD854F), 107 RUM_DEV(DICKSMITH, RT2573), 108 RUM_DEV(EDIMAX, EW7318USG), 109 RUM_DEV(DLINK2, DWLG122C1), 110 RUM_DEV(DLINK2, WUA1340), 111 RUM_DEV(DLINK2, DWA111), 112 RUM_DEV(DLINK2, DWA110), 113 RUM_DEV(GIGABYTE, GNWB01GS), 114 RUM_DEV(GIGABYTE, GNWI05GS), 115 RUM_DEV(GIGASET, RT2573), 116 RUM_DEV(GOODWAY, RT2573), 117 RUM_DEV(GUILLEMOT, HWGUSB254LB), 118 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 119 RUM_DEV(HUAWEI3COM, WUB320G), 120 RUM_DEV(MELCO, G54HP), 121 RUM_DEV(MELCO, SG54HP), 122 RUM_DEV(MELCO, SG54HG), 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 int rum_transmit(struct ieee80211com *, struct mbuf *); 177static void rum_start(struct rum_softc *); 178static void rum_parent(struct ieee80211com *); 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 usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 188static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 189static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 190 uint32_t); 191static int rum_bbp_busy(struct rum_softc *); 192static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 193static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 194static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 195static void rum_select_antenna(struct rum_softc *); 196static void rum_enable_mrr(struct rum_softc *); 197static void rum_set_txpreamble(struct rum_softc *); 198static void rum_set_basicrates(struct rum_softc *); 199static void rum_select_band(struct rum_softc *, 200 struct ieee80211_channel *); 201static void rum_set_chan(struct rum_softc *, 202 struct ieee80211_channel *); 203static void rum_enable_tsf_sync(struct rum_softc *); 204static void rum_enable_tsf(struct rum_softc *); 205static void rum_abort_tsf_sync(struct rum_softc *); 206static void rum_update_slot(struct rum_softc *); 207static void rum_set_bssid(struct rum_softc *, const uint8_t *); 208static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 209static void rum_update_mcast(struct ieee80211com *); 210static void rum_update_promisc(struct ieee80211com *); 211static void rum_setpromisc(struct rum_softc *); 212static const char *rum_get_rf(int); 213static void rum_read_eeprom(struct rum_softc *); 214static int rum_bbp_init(struct rum_softc *); 215static void rum_init(struct rum_softc *); 216static void rum_stop(struct rum_softc *); 217static void rum_load_microcode(struct rum_softc *, const uint8_t *, 218 size_t); 219static void rum_prepare_beacon(struct rum_softc *, 220 struct ieee80211vap *); 221static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 222 const struct ieee80211_bpf_params *); 223static void rum_scan_start(struct ieee80211com *); 224static void rum_scan_end(struct ieee80211com *); 225static void rum_set_channel(struct ieee80211com *); 226static int rum_get_rssi(struct rum_softc *, uint8_t); 227static void rum_ratectl_start(struct rum_softc *, 228 struct ieee80211_node *); 229static void rum_ratectl_timeout(void *); 230static void rum_ratectl_task(void *, int); 231static int rum_pause(struct rum_softc *, int); 232 233static const struct { 234 uint32_t reg; 235 uint32_t val; 236} rum_def_mac[] = { 237 { RT2573_TXRX_CSR0, 0x025fb032 }, 238 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 239 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 240 { RT2573_TXRX_CSR3, 0x00858687 }, 241 { RT2573_TXRX_CSR7, 0x2e31353b }, 242 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 243 { RT2573_TXRX_CSR15, 0x0000000f }, 244 { RT2573_MAC_CSR6, 0x00000fff }, 245 { RT2573_MAC_CSR8, 0x016c030a }, 246 { RT2573_MAC_CSR10, 0x00000718 }, 247 { RT2573_MAC_CSR12, 0x00000004 }, 248 { RT2573_MAC_CSR13, 0x00007f00 }, 249 { RT2573_SEC_CSR0, 0x00000000 }, 250 { RT2573_SEC_CSR1, 0x00000000 }, 251 { RT2573_SEC_CSR5, 0x00000000 }, 252 { RT2573_PHY_CSR1, 0x000023b0 }, 253 { RT2573_PHY_CSR5, 0x00040a06 }, 254 { RT2573_PHY_CSR6, 0x00080606 }, 255 { RT2573_PHY_CSR7, 0x00000408 }, 256 { RT2573_AIFSN_CSR, 0x00002273 }, 257 { RT2573_CWMIN_CSR, 0x00002344 }, 258 { RT2573_CWMAX_CSR, 0x000034aa } 259}; 260 261static const struct { 262 uint8_t reg; 263 uint8_t val; 264} rum_def_bbp[] = { 265 { 3, 0x80 }, 266 { 15, 0x30 }, 267 { 17, 0x20 }, 268 { 21, 0xc8 }, 269 { 22, 0x38 }, 270 { 23, 0x06 }, 271 { 24, 0xfe }, 272 { 25, 0x0a }, 273 { 26, 0x0d }, 274 { 32, 0x0b }, 275 { 34, 0x12 }, 276 { 37, 0x07 }, 277 { 39, 0xf8 }, 278 { 41, 0x60 }, 279 { 53, 0x10 }, 280 { 54, 0x18 }, 281 { 60, 0x10 }, 282 { 61, 0x04 }, 283 { 62, 0x04 }, 284 { 75, 0xfe }, 285 { 86, 0xfe }, 286 { 88, 0xfe }, 287 { 90, 0x0f }, 288 { 99, 0x00 }, 289 { 102, 0x16 }, 290 { 107, 0x04 } 291}; 292 293static const struct rfprog { 294 uint8_t chan; 295 uint32_t r1, r2, r3, r4; 296} rum_rf5226[] = { 297 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 298 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 299 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 300 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 301 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 302 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 303 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 304 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 305 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 306 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 307 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 308 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 309 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 310 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 311 312 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 313 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 314 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 315 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 316 317 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 318 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 319 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 320 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 321 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 322 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 323 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 324 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 325 326 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 327 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 328 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 329 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 330 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 331 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 332 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 333 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 334 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 335 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 336 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 337 338 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 339 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 340 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 341 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 342 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 343}, rum_rf5225[] = { 344 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 345 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 346 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 347 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 348 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 349 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 350 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 351 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 352 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 353 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 354 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 355 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 356 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 357 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 358 359 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 360 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 361 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 362 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 363 364 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 365 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 366 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 367 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 368 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 369 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 370 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 371 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 372 373 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 374 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 375 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 376 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 377 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 378 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 379 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 380 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 381 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 382 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 383 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 384 385 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 386 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 387 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 388 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 389 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 390}; 391 392static const struct usb_config rum_config[RUM_N_TRANSFER] = { 393 [RUM_BULK_WR] = { 394 .type = UE_BULK, 395 .endpoint = UE_ADDR_ANY, 396 .direction = UE_DIR_OUT, 397 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 398 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 399 .callback = rum_bulk_write_callback, 400 .timeout = 5000, /* ms */ 401 }, 402 [RUM_BULK_RD] = { 403 .type = UE_BULK, 404 .endpoint = UE_ADDR_ANY, 405 .direction = UE_DIR_IN, 406 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 407 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 408 .callback = rum_bulk_read_callback, 409 }, 410}; 411 412static int 413rum_match(device_t self) 414{ 415 struct usb_attach_arg *uaa = device_get_ivars(self); 416 417 if (uaa->usb_mode != USB_MODE_HOST) 418 return (ENXIO); 419 if (uaa->info.bConfigIndex != 0) 420 return (ENXIO); 421 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 422 return (ENXIO); 423 424 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 425} 426 427static int 428rum_attach(device_t self) 429{ 430 struct usb_attach_arg *uaa = device_get_ivars(self); 431 struct rum_softc *sc = device_get_softc(self); 432 struct ieee80211com *ic = &sc->sc_ic; 433 uint8_t iface_index, bands; 434 uint32_t tmp; 435 int error, ntries; 436 437 device_set_usb_desc(self); 438 sc->sc_udev = uaa->device; 439 sc->sc_dev = self; 440 441 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 442 MTX_NETWORK_LOCK, MTX_DEF); 443 mbufq_init(&sc->sc_snd, ifqmaxlen); 444 445 iface_index = RT2573_IFACE_INDEX; 446 error = usbd_transfer_setup(uaa->device, &iface_index, 447 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 448 if (error) { 449 device_printf(self, "could not allocate USB transfers, " 450 "err=%s\n", usbd_errstr(error)); 451 goto detach; 452 } 453 454 RUM_LOCK(sc); 455 /* retrieve RT2573 rev. no */ 456 for (ntries = 0; ntries < 100; ntries++) { 457 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 458 break; 459 if (rum_pause(sc, hz / 100)) 460 break; 461 } 462 if (ntries == 100) { 463 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 464 RUM_UNLOCK(sc); 465 goto detach; 466 } 467 468 /* retrieve MAC address and various other things from EEPROM */ 469 rum_read_eeprom(sc); 470 471 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 472 tmp, rum_get_rf(sc->rf_rev)); 473 474 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 475 RUM_UNLOCK(sc); 476 477 ic->ic_softc = sc; 478 ic->ic_name = device_get_nameunit(self); 479 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 480 481 /* set device capabilities */ 482 ic->ic_caps = 483 IEEE80211_C_STA /* station mode supported */ 484 | IEEE80211_C_IBSS /* IBSS mode supported */ 485 | IEEE80211_C_MONITOR /* monitor mode supported */ 486 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 487 | IEEE80211_C_TXPMGT /* tx power management */ 488 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 489 | IEEE80211_C_SHSLOT /* short slot time supported */ 490 | IEEE80211_C_BGSCAN /* bg scanning supported */ 491 | IEEE80211_C_WPA /* 802.11i */ 492 ; 493 494 bands = 0; 495 setbit(&bands, IEEE80211_MODE_11B); 496 setbit(&bands, IEEE80211_MODE_11G); 497 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 498 setbit(&bands, IEEE80211_MODE_11A); 499 ieee80211_init_channels(ic, NULL, &bands); 500 501 ieee80211_ifattach(ic); 502 ic->ic_update_promisc = rum_update_promisc; 503 ic->ic_raw_xmit = rum_raw_xmit; 504 ic->ic_scan_start = rum_scan_start; 505 ic->ic_scan_end = rum_scan_end; 506 ic->ic_set_channel = rum_set_channel; 507 ic->ic_transmit = rum_transmit; 508 ic->ic_parent = rum_parent; 509 ic->ic_vap_create = rum_vap_create; 510 ic->ic_vap_delete = rum_vap_delete; 511 ic->ic_update_mcast = rum_update_mcast; 512 513 ieee80211_radiotap_attach(ic, 514 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 515 RT2573_TX_RADIOTAP_PRESENT, 516 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 517 RT2573_RX_RADIOTAP_PRESENT); 518 519 if (bootverbose) 520 ieee80211_announce(ic); 521 522 return (0); 523 524detach: 525 rum_detach(self); 526 return (ENXIO); /* failure */ 527} 528 529static int 530rum_detach(device_t self) 531{ 532 struct rum_softc *sc = device_get_softc(self); 533 struct ieee80211com *ic = &sc->sc_ic; 534 535 /* Prevent further ioctls */ 536 RUM_LOCK(sc); 537 sc->sc_detached = 1; 538 RUM_UNLOCK(sc); 539 540 /* stop all USB transfers */ 541 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 542 543 /* free TX list, if any */ 544 RUM_LOCK(sc); 545 rum_unsetup_tx_list(sc); 546 RUM_UNLOCK(sc); 547 548 if (ic->ic_softc == sc) 549 ieee80211_ifdetach(ic); 550 mbufq_drain(&sc->sc_snd); 551 mtx_destroy(&sc->sc_mtx); 552 return (0); 553} 554 555static usb_error_t 556rum_do_request(struct rum_softc *sc, 557 struct usb_device_request *req, void *data) 558{ 559 usb_error_t err; 560 int ntries = 10; 561 562 while (ntries--) { 563 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 564 req, data, 0, NULL, 250 /* ms */); 565 if (err == 0) 566 break; 567 568 DPRINTFN(1, "Control request failed, %s (retrying)\n", 569 usbd_errstr(err)); 570 if (rum_pause(sc, hz / 100)) 571 break; 572 } 573 return (err); 574} 575 576static struct ieee80211vap * 577rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 578 enum ieee80211_opmode opmode, int flags, 579 const uint8_t bssid[IEEE80211_ADDR_LEN], 580 const uint8_t mac[IEEE80211_ADDR_LEN]) 581{ 582 struct rum_softc *sc = ic->ic_softc; 583 struct rum_vap *rvp; 584 struct ieee80211vap *vap; 585 586 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 587 return NULL; 588 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 589 vap = &rvp->vap; 590 /* enable s/w bmiss handling for sta mode */ 591 592 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 593 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 594 /* out of memory */ 595 free(rvp, M_80211_VAP); 596 return (NULL); 597 } 598 599 /* override state transition machine */ 600 rvp->newstate = vap->iv_newstate; 601 vap->iv_newstate = rum_newstate; 602 603 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 604 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 605 ieee80211_ratectl_init(vap); 606 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 607 /* complete setup */ 608 ieee80211_vap_attach(vap, ieee80211_media_change, 609 ieee80211_media_status, mac); 610 ic->ic_opmode = opmode; 611 return vap; 612} 613 614static void 615rum_vap_delete(struct ieee80211vap *vap) 616{ 617 struct rum_vap *rvp = RUM_VAP(vap); 618 struct ieee80211com *ic = vap->iv_ic; 619 620 usb_callout_drain(&rvp->ratectl_ch); 621 ieee80211_draintask(ic, &rvp->ratectl_task); 622 ieee80211_ratectl_deinit(vap); 623 ieee80211_vap_detach(vap); 624 free(rvp, M_80211_VAP); 625} 626 627static void 628rum_tx_free(struct rum_tx_data *data, int txerr) 629{ 630 struct rum_softc *sc = data->sc; 631 632 if (data->m != NULL) { 633 ieee80211_tx_complete(data->ni, data->m, txerr); 634 data->m = NULL; 635 data->ni = NULL; 636 } 637 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 638 sc->tx_nfree++; 639} 640 641static void 642rum_setup_tx_list(struct rum_softc *sc) 643{ 644 struct rum_tx_data *data; 645 int i; 646 647 sc->tx_nfree = 0; 648 STAILQ_INIT(&sc->tx_q); 649 STAILQ_INIT(&sc->tx_free); 650 651 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 652 data = &sc->tx_data[i]; 653 654 data->sc = sc; 655 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 656 sc->tx_nfree++; 657 } 658} 659 660static void 661rum_unsetup_tx_list(struct rum_softc *sc) 662{ 663 struct rum_tx_data *data; 664 int i; 665 666 /* make sure any subsequent use of the queues will fail */ 667 sc->tx_nfree = 0; 668 STAILQ_INIT(&sc->tx_q); 669 STAILQ_INIT(&sc->tx_free); 670 671 /* free up all node references and mbufs */ 672 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 673 data = &sc->tx_data[i]; 674 675 if (data->m != NULL) { 676 m_freem(data->m); 677 data->m = NULL; 678 } 679 if (data->ni != NULL) { 680 ieee80211_free_node(data->ni); 681 data->ni = NULL; 682 } 683 } 684} 685 686static int 687rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 688{ 689 struct rum_vap *rvp = RUM_VAP(vap); 690 struct ieee80211com *ic = vap->iv_ic; 691 struct rum_softc *sc = ic->ic_softc; 692 const struct ieee80211_txparam *tp; 693 enum ieee80211_state ostate; 694 struct ieee80211_node *ni; 695 696 ostate = vap->iv_state; 697 DPRINTF("%s -> %s\n", 698 ieee80211_state_name[ostate], 699 ieee80211_state_name[nstate]); 700 701 IEEE80211_UNLOCK(ic); 702 RUM_LOCK(sc); 703 usb_callout_stop(&rvp->ratectl_ch); 704 705 switch (nstate) { 706 case IEEE80211_S_INIT: 707 if (ostate == IEEE80211_S_RUN) 708 rum_abort_tsf_sync(sc); 709 710 break; 711 712 case IEEE80211_S_RUN: 713 ni = ieee80211_ref_node(vap->iv_bss); 714 715 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 716 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 717 RUM_UNLOCK(sc); 718 IEEE80211_LOCK(ic); 719 ieee80211_free_node(ni); 720 return (-1); 721 } 722 rum_update_slot(sc); 723 rum_enable_mrr(sc); 724 rum_set_txpreamble(sc); 725 rum_set_basicrates(sc); 726 IEEE80211_ADDR_COPY(ic->ic_macaddr, ni->ni_bssid); 727 rum_set_bssid(sc, ic->ic_macaddr); 728 } 729 730 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 731 vap->iv_opmode == IEEE80211_M_IBSS) 732 rum_prepare_beacon(sc, vap); 733 734 if (vap->iv_opmode != IEEE80211_M_MONITOR) 735 rum_enable_tsf_sync(sc); 736 else 737 rum_enable_tsf(sc); 738 739 /* enable automatic rate adaptation */ 740 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 741 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 742 rum_ratectl_start(sc, ni); 743 ieee80211_free_node(ni); 744 break; 745 default: 746 break; 747 } 748 RUM_UNLOCK(sc); 749 IEEE80211_LOCK(ic); 750 return (rvp->newstate(vap, nstate, arg)); 751} 752 753static void 754rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 755{ 756 struct rum_softc *sc = usbd_xfer_softc(xfer); 757 struct ieee80211vap *vap; 758 struct rum_tx_data *data; 759 struct mbuf *m; 760 struct usb_page_cache *pc; 761 unsigned int len; 762 int actlen, sumlen; 763 764 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 765 766 switch (USB_GET_STATE(xfer)) { 767 case USB_ST_TRANSFERRED: 768 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 769 770 /* free resources */ 771 data = usbd_xfer_get_priv(xfer); 772 rum_tx_free(data, 0); 773 usbd_xfer_set_priv(xfer, NULL); 774 775 /* FALLTHROUGH */ 776 case USB_ST_SETUP: 777tr_setup: 778 data = STAILQ_FIRST(&sc->tx_q); 779 if (data) { 780 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 781 m = data->m; 782 783 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 784 DPRINTFN(0, "data overflow, %u bytes\n", 785 m->m_pkthdr.len); 786 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 787 } 788 pc = usbd_xfer_get_frame(xfer, 0); 789 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 790 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 791 m->m_pkthdr.len); 792 793 vap = data->ni->ni_vap; 794 if (ieee80211_radiotap_active_vap(vap)) { 795 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 796 797 tap->wt_flags = 0; 798 tap->wt_rate = data->rate; 799 tap->wt_antenna = sc->tx_ant; 800 801 ieee80211_radiotap_tx(vap, m); 802 } 803 804 /* align end on a 4-bytes boundary */ 805 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 806 if ((len % 64) == 0) 807 len += 4; 808 809 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 810 m->m_pkthdr.len, len); 811 812 usbd_xfer_set_frame_len(xfer, 0, len); 813 usbd_xfer_set_priv(xfer, data); 814 815 usbd_transfer_submit(xfer); 816 } 817 rum_start(sc); 818 break; 819 820 default: /* Error */ 821 DPRINTFN(11, "transfer error, %s\n", 822 usbd_errstr(error)); 823 824 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 825 data = usbd_xfer_get_priv(xfer); 826 if (data != NULL) { 827 rum_tx_free(data, error); 828 usbd_xfer_set_priv(xfer, NULL); 829 } 830 831 if (error != USB_ERR_CANCELLED) { 832 if (error == USB_ERR_TIMEOUT) 833 device_printf(sc->sc_dev, "device timeout\n"); 834 835 /* 836 * Try to clear stall first, also if other 837 * errors occur, hence clearing stall 838 * introduces a 50 ms delay: 839 */ 840 usbd_xfer_set_stall(xfer); 841 goto tr_setup; 842 } 843 break; 844 } 845} 846 847static void 848rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 849{ 850 struct rum_softc *sc = usbd_xfer_softc(xfer); 851 struct ieee80211com *ic = &sc->sc_ic; 852 struct ieee80211_node *ni; 853 struct mbuf *m = NULL; 854 struct usb_page_cache *pc; 855 uint32_t flags; 856 uint8_t rssi = 0; 857 int len; 858 859 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 860 861 switch (USB_GET_STATE(xfer)) { 862 case USB_ST_TRANSFERRED: 863 864 DPRINTFN(15, "rx done, actlen=%d\n", len); 865 866 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 867 DPRINTF("%s: xfer too short %d\n", 868 device_get_nameunit(sc->sc_dev), len); 869 counter_u64_add(ic->ic_ierrors, 1); 870 goto tr_setup; 871 } 872 873 len -= RT2573_RX_DESC_SIZE; 874 pc = usbd_xfer_get_frame(xfer, 0); 875 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 876 877 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 878 flags = le32toh(sc->sc_rx_desc.flags); 879 if (flags & RT2573_RX_CRC_ERROR) { 880 /* 881 * This should not happen since we did not 882 * request to receive those frames when we 883 * filled RUM_TXRX_CSR2: 884 */ 885 DPRINTFN(5, "PHY or CRC error\n"); 886 counter_u64_add(ic->ic_ierrors, 1); 887 goto tr_setup; 888 } 889 890 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 891 if (m == NULL) { 892 DPRINTF("could not allocate mbuf\n"); 893 counter_u64_add(ic->ic_ierrors, 1); 894 goto tr_setup; 895 } 896 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 897 mtod(m, uint8_t *), len); 898 899 /* finalize mbuf */ 900 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 901 902 if (ieee80211_radiotap_active(ic)) { 903 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 904 905 /* XXX read tsf */ 906 tap->wr_flags = 0; 907 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 908 (flags & RT2573_RX_OFDM) ? 909 IEEE80211_T_OFDM : IEEE80211_T_CCK); 910 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 911 tap->wr_antnoise = RT2573_NOISE_FLOOR; 912 tap->wr_antenna = sc->rx_ant; 913 } 914 /* FALLTHROUGH */ 915 case USB_ST_SETUP: 916tr_setup: 917 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 918 usbd_transfer_submit(xfer); 919 920 /* 921 * At the end of a USB callback it is always safe to unlock 922 * the private mutex of a device! That is why we do the 923 * "ieee80211_input" here, and not some lines up! 924 */ 925 RUM_UNLOCK(sc); 926 if (m) { 927 ni = ieee80211_find_rxnode(ic, 928 mtod(m, struct ieee80211_frame_min *)); 929 if (ni != NULL) { 930 (void) ieee80211_input(ni, m, rssi, 931 RT2573_NOISE_FLOOR); 932 ieee80211_free_node(ni); 933 } else 934 (void) ieee80211_input_all(ic, m, rssi, 935 RT2573_NOISE_FLOOR); 936 } 937 RUM_LOCK(sc); 938 rum_start(sc); 939 return; 940 941 default: /* Error */ 942 if (error != USB_ERR_CANCELLED) { 943 /* try to clear stall first */ 944 usbd_xfer_set_stall(xfer); 945 goto tr_setup; 946 } 947 return; 948 } 949} 950 951static uint8_t 952rum_plcp_signal(int rate) 953{ 954 switch (rate) { 955 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 956 case 12: return 0xb; 957 case 18: return 0xf; 958 case 24: return 0xa; 959 case 36: return 0xe; 960 case 48: return 0x9; 961 case 72: return 0xd; 962 case 96: return 0x8; 963 case 108: return 0xc; 964 965 /* CCK rates (NB: not IEEE std, device-specific) */ 966 case 2: return 0x0; 967 case 4: return 0x1; 968 case 11: return 0x2; 969 case 22: return 0x3; 970 } 971 return 0xff; /* XXX unsupported/unknown rate */ 972} 973 974static void 975rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 976 uint32_t flags, uint16_t xflags, int len, int rate) 977{ 978 struct ieee80211com *ic = &sc->sc_ic; 979 uint16_t plcp_length; 980 int remainder; 981 982 desc->flags = htole32(flags); 983 desc->flags |= htole32(RT2573_TX_VALID); 984 desc->flags |= htole32(len << 16); 985 986 desc->xflags = htole16(xflags); 987 988 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 989 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 990 991 /* setup PLCP fields */ 992 desc->plcp_signal = rum_plcp_signal(rate); 993 desc->plcp_service = 4; 994 995 len += IEEE80211_CRC_LEN; 996 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 997 desc->flags |= htole32(RT2573_TX_OFDM); 998 999 plcp_length = len & 0xfff; 1000 desc->plcp_length_hi = plcp_length >> 6; 1001 desc->plcp_length_lo = plcp_length & 0x3f; 1002 } else { 1003 if (rate == 0) 1004 rate = 2; /* avoid division by zero */ 1005 plcp_length = (16 * len + rate - 1) / rate; 1006 if (rate == 22) { 1007 remainder = (16 * len) % 22; 1008 if (remainder != 0 && remainder < 7) 1009 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1010 } 1011 desc->plcp_length_hi = plcp_length >> 8; 1012 desc->plcp_length_lo = plcp_length & 0xff; 1013 1014 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1015 desc->plcp_signal |= 0x08; 1016 } 1017} 1018 1019static int 1020rum_sendprot(struct rum_softc *sc, 1021 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1022{ 1023 struct ieee80211com *ic = ni->ni_ic; 1024 const struct ieee80211_frame *wh; 1025 struct rum_tx_data *data; 1026 struct mbuf *mprot; 1027 int protrate, pktlen, flags, isshort; 1028 uint16_t dur; 1029 1030 RUM_LOCK_ASSERT(sc); 1031 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1032 ("protection %d", prot)); 1033 1034 wh = mtod(m, const struct ieee80211_frame *); 1035 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1036 1037 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1038 1039 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1040 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1041 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1042 flags = RT2573_TX_MORE_FRAG; 1043 if (prot == IEEE80211_PROT_RTSCTS) { 1044 /* NB: CTS is the same size as an ACK */ 1045 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1046 flags |= RT2573_TX_NEED_ACK; 1047 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1048 } else { 1049 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1050 } 1051 if (mprot == NULL) { 1052 /* XXX stat + msg */ 1053 return (ENOBUFS); 1054 } 1055 data = STAILQ_FIRST(&sc->tx_free); 1056 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1057 sc->tx_nfree--; 1058 1059 data->m = mprot; 1060 data->ni = ieee80211_ref_node(ni); 1061 data->rate = protrate; 1062 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1063 1064 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1065 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1066 1067 return 0; 1068} 1069 1070static int 1071rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1072{ 1073 struct ieee80211vap *vap = ni->ni_vap; 1074 struct ieee80211com *ic = &sc->sc_ic; 1075 struct rum_tx_data *data; 1076 struct ieee80211_frame *wh; 1077 const struct ieee80211_txparam *tp; 1078 struct ieee80211_key *k; 1079 uint32_t flags = 0; 1080 uint16_t dur; 1081 1082 RUM_LOCK_ASSERT(sc); 1083 1084 data = STAILQ_FIRST(&sc->tx_free); 1085 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1086 sc->tx_nfree--; 1087 1088 wh = mtod(m0, struct ieee80211_frame *); 1089 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1090 k = ieee80211_crypto_encap(ni, m0); 1091 if (k == NULL) { 1092 m_freem(m0); 1093 return ENOBUFS; 1094 } 1095 wh = mtod(m0, struct ieee80211_frame *); 1096 } 1097 1098 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1099 1100 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1101 flags |= RT2573_TX_NEED_ACK; 1102 1103 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1104 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1105 USETW(wh->i_dur, dur); 1106 1107 /* tell hardware to add timestamp for probe responses */ 1108 if ((wh->i_fc[0] & 1109 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1110 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1111 flags |= RT2573_TX_TIMESTAMP; 1112 } 1113 1114 data->m = m0; 1115 data->ni = ni; 1116 data->rate = tp->mgmtrate; 1117 1118 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1119 1120 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1121 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1122 1123 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1124 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1125 1126 return (0); 1127} 1128 1129static int 1130rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1131 const struct ieee80211_bpf_params *params) 1132{ 1133 struct ieee80211com *ic = ni->ni_ic; 1134 struct rum_tx_data *data; 1135 uint32_t flags; 1136 int rate, error; 1137 1138 RUM_LOCK_ASSERT(sc); 1139 KASSERT(params != NULL, ("no raw xmit params")); 1140 1141 rate = params->ibp_rate0; 1142 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1143 m_freem(m0); 1144 return EINVAL; 1145 } 1146 flags = 0; 1147 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1148 flags |= RT2573_TX_NEED_ACK; 1149 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1150 error = rum_sendprot(sc, m0, ni, 1151 params->ibp_flags & IEEE80211_BPF_RTS ? 1152 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1153 rate); 1154 if (error || sc->tx_nfree == 0) { 1155 m_freem(m0); 1156 return ENOBUFS; 1157 } 1158 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1159 } 1160 1161 data = STAILQ_FIRST(&sc->tx_free); 1162 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1163 sc->tx_nfree--; 1164 1165 data->m = m0; 1166 data->ni = ni; 1167 data->rate = rate; 1168 1169 /* XXX need to setup descriptor ourself */ 1170 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1171 1172 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1173 m0->m_pkthdr.len, rate); 1174 1175 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1176 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1177 1178 return 0; 1179} 1180 1181static int 1182rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1183{ 1184 struct ieee80211vap *vap = ni->ni_vap; 1185 struct ieee80211com *ic = &sc->sc_ic; 1186 struct rum_tx_data *data; 1187 struct ieee80211_frame *wh; 1188 const struct ieee80211_txparam *tp; 1189 struct ieee80211_key *k; 1190 uint32_t flags = 0; 1191 uint16_t dur; 1192 int error, rate; 1193 1194 RUM_LOCK_ASSERT(sc); 1195 1196 wh = mtod(m0, struct ieee80211_frame *); 1197 1198 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1199 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1200 rate = tp->mcastrate; 1201 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1202 rate = tp->ucastrate; 1203 else 1204 rate = ni->ni_txrate; 1205 1206 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1207 k = ieee80211_crypto_encap(ni, m0); 1208 if (k == NULL) { 1209 m_freem(m0); 1210 return ENOBUFS; 1211 } 1212 1213 /* packet header may have moved, reset our local pointer */ 1214 wh = mtod(m0, struct ieee80211_frame *); 1215 } 1216 1217 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1218 int prot = IEEE80211_PROT_NONE; 1219 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1220 prot = IEEE80211_PROT_RTSCTS; 1221 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1222 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1223 prot = ic->ic_protmode; 1224 if (prot != IEEE80211_PROT_NONE) { 1225 error = rum_sendprot(sc, m0, ni, prot, rate); 1226 if (error || sc->tx_nfree == 0) { 1227 m_freem(m0); 1228 return ENOBUFS; 1229 } 1230 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1231 } 1232 } 1233 1234 data = STAILQ_FIRST(&sc->tx_free); 1235 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1236 sc->tx_nfree--; 1237 1238 data->m = m0; 1239 data->ni = ni; 1240 data->rate = rate; 1241 1242 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1243 flags |= RT2573_TX_NEED_ACK; 1244 flags |= RT2573_TX_MORE_FRAG; 1245 1246 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1247 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1248 USETW(wh->i_dur, dur); 1249 } 1250 1251 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1252 1253 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1254 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1255 1256 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1257 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1258 1259 return 0; 1260} 1261 1262static int 1263rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1264{ 1265 struct rum_softc *sc = ic->ic_softc; 1266 int error; 1267 1268 RUM_LOCK(sc); 1269 if (!sc->sc_running) { 1270 RUM_UNLOCK(sc); 1271 return (ENXIO); 1272 } 1273 error = mbufq_enqueue(&sc->sc_snd, m); 1274 if (error) { 1275 RUM_UNLOCK(sc); 1276 return (error); 1277 } 1278 rum_start(sc); 1279 RUM_UNLOCK(sc); 1280 1281 return (0); 1282} 1283 1284static void 1285rum_start(struct rum_softc *sc) 1286{ 1287 struct ieee80211_node *ni; 1288 struct mbuf *m; 1289 1290 RUM_LOCK_ASSERT(sc); 1291 1292 if (!sc->sc_running) 1293 return; 1294 1295 while (sc->tx_nfree >= RUM_TX_MINFREE && 1296 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1297 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1298 if (rum_tx_data(sc, m, ni) != 0) { 1299 if_inc_counter(ni->ni_vap->iv_ifp, 1300 IFCOUNTER_OERRORS, 1); 1301 ieee80211_free_node(ni); 1302 break; 1303 } 1304 } 1305} 1306 1307static void 1308rum_parent(struct ieee80211com *ic) 1309{ 1310 struct rum_softc *sc = ic->ic_softc; 1311 int startall = 0; 1312 1313 RUM_LOCK(sc); 1314 if (sc->sc_detached) { 1315 RUM_UNLOCK(sc); 1316 return; 1317 } 1318 if (ic->ic_nrunning > 0) { 1319 if (!sc->sc_running) { 1320 rum_init(sc); 1321 startall = 1; 1322 } else 1323 rum_setpromisc(sc); 1324 } else if (sc->sc_running) 1325 rum_stop(sc); 1326 RUM_UNLOCK(sc); 1327 if (startall) 1328 ieee80211_start_all(ic); 1329} 1330 1331static void 1332rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1333{ 1334 struct usb_device_request req; 1335 usb_error_t error; 1336 1337 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1338 req.bRequest = RT2573_READ_EEPROM; 1339 USETW(req.wValue, 0); 1340 USETW(req.wIndex, addr); 1341 USETW(req.wLength, len); 1342 1343 error = rum_do_request(sc, &req, buf); 1344 if (error != 0) { 1345 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1346 usbd_errstr(error)); 1347 } 1348} 1349 1350static uint32_t 1351rum_read(struct rum_softc *sc, uint16_t reg) 1352{ 1353 uint32_t val; 1354 1355 rum_read_multi(sc, reg, &val, sizeof val); 1356 1357 return le32toh(val); 1358} 1359 1360static void 1361rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1362{ 1363 struct usb_device_request req; 1364 usb_error_t error; 1365 1366 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1367 req.bRequest = RT2573_READ_MULTI_MAC; 1368 USETW(req.wValue, 0); 1369 USETW(req.wIndex, reg); 1370 USETW(req.wLength, len); 1371 1372 error = rum_do_request(sc, &req, buf); 1373 if (error != 0) { 1374 device_printf(sc->sc_dev, 1375 "could not multi read MAC register: %s\n", 1376 usbd_errstr(error)); 1377 } 1378} 1379 1380static usb_error_t 1381rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1382{ 1383 uint32_t tmp = htole32(val); 1384 1385 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1386} 1387 1388static usb_error_t 1389rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1390{ 1391 struct usb_device_request req; 1392 usb_error_t error; 1393 size_t offset; 1394 1395 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1396 req.bRequest = RT2573_WRITE_MULTI_MAC; 1397 USETW(req.wValue, 0); 1398 1399 /* write at most 64 bytes at a time */ 1400 for (offset = 0; offset < len; offset += 64) { 1401 USETW(req.wIndex, reg + offset); 1402 USETW(req.wLength, MIN(len - offset, 64)); 1403 1404 error = rum_do_request(sc, &req, (char *)buf + offset); 1405 if (error != 0) { 1406 device_printf(sc->sc_dev, 1407 "could not multi write MAC register: %s\n", 1408 usbd_errstr(error)); 1409 return (error); 1410 } 1411 } 1412 1413 return (USB_ERR_NORMAL_COMPLETION); 1414} 1415 1416static usb_error_t 1417rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1418{ 1419 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1420} 1421 1422static usb_error_t 1423rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1424{ 1425 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1426} 1427 1428static usb_error_t 1429rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1430{ 1431 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1432} 1433 1434static int 1435rum_bbp_busy(struct rum_softc *sc) 1436{ 1437 int ntries; 1438 1439 for (ntries = 0; ntries < 100; ntries++) { 1440 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1441 break; 1442 if (rum_pause(sc, hz / 100)) 1443 break; 1444 } 1445 if (ntries == 100) 1446 return (ETIMEDOUT); 1447 1448 return (0); 1449} 1450 1451static void 1452rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1453{ 1454 uint32_t tmp; 1455 1456 DPRINTFN(2, "reg=0x%08x\n", reg); 1457 1458 if (rum_bbp_busy(sc) != 0) { 1459 device_printf(sc->sc_dev, "could not write to BBP\n"); 1460 return; 1461 } 1462 1463 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1464 rum_write(sc, RT2573_PHY_CSR3, tmp); 1465} 1466 1467static uint8_t 1468rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1469{ 1470 uint32_t val; 1471 int ntries; 1472 1473 DPRINTFN(2, "reg=0x%08x\n", reg); 1474 1475 if (rum_bbp_busy(sc) != 0) { 1476 device_printf(sc->sc_dev, "could not read BBP\n"); 1477 return 0; 1478 } 1479 1480 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1481 rum_write(sc, RT2573_PHY_CSR3, val); 1482 1483 for (ntries = 0; ntries < 100; ntries++) { 1484 val = rum_read(sc, RT2573_PHY_CSR3); 1485 if (!(val & RT2573_BBP_BUSY)) 1486 return val & 0xff; 1487 if (rum_pause(sc, hz / 100)) 1488 break; 1489 } 1490 1491 device_printf(sc->sc_dev, "could not read BBP\n"); 1492 return 0; 1493} 1494 1495static void 1496rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1497{ 1498 uint32_t tmp; 1499 int ntries; 1500 1501 for (ntries = 0; ntries < 100; ntries++) { 1502 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1503 break; 1504 if (rum_pause(sc, hz / 100)) 1505 break; 1506 } 1507 if (ntries == 100) { 1508 device_printf(sc->sc_dev, "could not write to RF\n"); 1509 return; 1510 } 1511 1512 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1513 (reg & 3); 1514 rum_write(sc, RT2573_PHY_CSR4, tmp); 1515 1516 /* remember last written value in sc */ 1517 sc->rf_regs[reg] = val; 1518 1519 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1520} 1521 1522static void 1523rum_select_antenna(struct rum_softc *sc) 1524{ 1525 uint8_t bbp4, bbp77; 1526 uint32_t tmp; 1527 1528 bbp4 = rum_bbp_read(sc, 4); 1529 bbp77 = rum_bbp_read(sc, 77); 1530 1531 /* TBD */ 1532 1533 /* make sure Rx is disabled before switching antenna */ 1534 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1535 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1536 1537 rum_bbp_write(sc, 4, bbp4); 1538 rum_bbp_write(sc, 77, bbp77); 1539 1540 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1541} 1542 1543/* 1544 * Enable multi-rate retries for frames sent at OFDM rates. 1545 * In 802.11b/g mode, allow fallback to CCK rates. 1546 */ 1547static void 1548rum_enable_mrr(struct rum_softc *sc) 1549{ 1550 struct ieee80211com *ic = &sc->sc_ic; 1551 1552 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1553 rum_setbits(sc, RT2573_TXRX_CSR4, 1554 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1555 } else { 1556 rum_modbits(sc, RT2573_TXRX_CSR4, 1557 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1558 } 1559} 1560 1561static void 1562rum_set_txpreamble(struct rum_softc *sc) 1563{ 1564 struct ieee80211com *ic = &sc->sc_ic; 1565 1566 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1567 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1568 else 1569 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1570} 1571 1572static void 1573rum_set_basicrates(struct rum_softc *sc) 1574{ 1575 struct ieee80211com *ic = &sc->sc_ic; 1576 1577 /* update basic rate set */ 1578 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1579 /* 11b basic rates: 1, 2Mbps */ 1580 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1581 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1582 /* 11a basic rates: 6, 12, 24Mbps */ 1583 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1584 } else { 1585 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1586 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1587 } 1588} 1589 1590/* 1591 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1592 * driver. 1593 */ 1594static void 1595rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1596{ 1597 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1598 1599 /* update all BBP registers that depend on the band */ 1600 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1601 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1602 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1603 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1604 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1605 } 1606 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1607 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1608 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1609 } 1610 1611 sc->bbp17 = bbp17; 1612 rum_bbp_write(sc, 17, bbp17); 1613 rum_bbp_write(sc, 96, bbp96); 1614 rum_bbp_write(sc, 104, bbp104); 1615 1616 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1617 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1618 rum_bbp_write(sc, 75, 0x80); 1619 rum_bbp_write(sc, 86, 0x80); 1620 rum_bbp_write(sc, 88, 0x80); 1621 } 1622 1623 rum_bbp_write(sc, 35, bbp35); 1624 rum_bbp_write(sc, 97, bbp97); 1625 rum_bbp_write(sc, 98, bbp98); 1626 1627 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1628 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1629 RT2573_PA_PE_5GHZ); 1630 } else { 1631 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1632 RT2573_PA_PE_2GHZ); 1633 } 1634} 1635 1636static void 1637rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1638{ 1639 struct ieee80211com *ic = &sc->sc_ic; 1640 const struct rfprog *rfprog; 1641 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1642 int8_t power; 1643 int i, chan; 1644 1645 chan = ieee80211_chan2ieee(ic, c); 1646 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1647 return; 1648 1649 /* select the appropriate RF settings based on what EEPROM says */ 1650 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1651 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1652 1653 /* find the settings for this channel (we know it exists) */ 1654 for (i = 0; rfprog[i].chan != chan; i++); 1655 1656 power = sc->txpow[i]; 1657 if (power < 0) { 1658 bbp94 += power; 1659 power = 0; 1660 } else if (power > 31) { 1661 bbp94 += power - 31; 1662 power = 31; 1663 } 1664 1665 /* 1666 * If we are switching from the 2GHz band to the 5GHz band or 1667 * vice-versa, BBP registers need to be reprogrammed. 1668 */ 1669 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1670 rum_select_band(sc, c); 1671 rum_select_antenna(sc); 1672 } 1673 ic->ic_curchan = c; 1674 1675 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1676 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1677 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1678 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1679 1680 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1681 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1682 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1683 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1684 1685 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1686 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1687 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1688 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1689 1690 rum_pause(sc, hz / 100); 1691 1692 /* enable smart mode for MIMO-capable RFs */ 1693 bbp3 = rum_bbp_read(sc, 3); 1694 1695 bbp3 &= ~RT2573_SMART_MODE; 1696 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1697 bbp3 |= RT2573_SMART_MODE; 1698 1699 rum_bbp_write(sc, 3, bbp3); 1700 1701 if (bbp94 != RT2573_BBPR94_DEFAULT) 1702 rum_bbp_write(sc, 94, bbp94); 1703 1704 /* give the chip some extra time to do the switchover */ 1705 rum_pause(sc, hz / 100); 1706} 1707 1708/* 1709 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1710 * and HostAP operating modes. 1711 */ 1712static void 1713rum_enable_tsf_sync(struct rum_softc *sc) 1714{ 1715 struct ieee80211com *ic = &sc->sc_ic; 1716 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1717 uint32_t tmp; 1718 1719 if (vap->iv_opmode != IEEE80211_M_STA) { 1720 /* 1721 * Change default 16ms TBTT adjustment to 8ms. 1722 * Must be done before enabling beacon generation. 1723 */ 1724 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1725 } 1726 1727 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1728 1729 /* set beacon interval (in 1/16ms unit) */ 1730 tmp |= vap->iv_bss->ni_intval * 16; 1731 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1732 1733 switch (vap->iv_opmode) { 1734 case IEEE80211_M_STA: 1735 /* 1736 * Local TSF is always updated with remote TSF on beacon 1737 * reception. 1738 */ 1739 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 1740 break; 1741 case IEEE80211_M_IBSS: 1742 /* 1743 * Local TSF is updated with remote TSF on beacon reception 1744 * only if the remote TSF is greater than local TSF. 1745 */ 1746 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 1747 tmp |= RT2573_BCN_TX_EN; 1748 break; 1749 case IEEE80211_M_HOSTAP: 1750 /* SYNC with nobody */ 1751 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 1752 tmp |= RT2573_BCN_TX_EN; 1753 break; 1754 default: 1755 device_printf(sc->sc_dev, 1756 "Enabling TSF failed. undefined opmode %d\n", 1757 vap->iv_opmode); 1758 return; 1759 } 1760 1761 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1762} 1763 1764static void 1765rum_enable_tsf(struct rum_softc *sc) 1766{ 1767 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 1768 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 1769} 1770 1771static void 1772rum_abort_tsf_sync(struct rum_softc *sc) 1773{ 1774 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 1775} 1776 1777static void 1778rum_update_slot(struct rum_softc *sc) 1779{ 1780 struct ieee80211com *ic = &sc->sc_ic; 1781 uint8_t slottime; 1782 1783 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1784 1785 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 1786 1787 DPRINTF("setting slot time to %uus\n", slottime); 1788} 1789 1790static void 1791rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1792{ 1793 uint32_t tmp; 1794 1795 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1796 rum_write(sc, RT2573_MAC_CSR4, tmp); 1797 1798 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1799 rum_write(sc, RT2573_MAC_CSR5, tmp); 1800} 1801 1802static void 1803rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1804{ 1805 uint32_t tmp; 1806 1807 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1808 rum_write(sc, RT2573_MAC_CSR2, tmp); 1809 1810 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1811 rum_write(sc, RT2573_MAC_CSR3, tmp); 1812} 1813 1814static void 1815rum_setpromisc(struct rum_softc *sc) 1816{ 1817 struct ieee80211com *ic = &sc->sc_ic; 1818 1819 if (ic->ic_promisc == 0) 1820 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1821 else 1822 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1823 1824 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 1825 "entering" : "leaving"); 1826} 1827 1828static void 1829rum_update_promisc(struct ieee80211com *ic) 1830{ 1831 struct rum_softc *sc = ic->ic_softc; 1832 1833 RUM_LOCK(sc); 1834 if (!sc->sc_running) { 1835 RUM_UNLOCK(sc); 1836 return; 1837 } 1838 rum_setpromisc(sc); 1839 RUM_UNLOCK(sc); 1840} 1841 1842static void 1843rum_update_mcast(struct ieee80211com *ic) 1844{ 1845 /* Ignore. */ 1846} 1847 1848static const char * 1849rum_get_rf(int rev) 1850{ 1851 switch (rev) { 1852 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1853 case RT2573_RF_2528: return "RT2528"; 1854 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1855 case RT2573_RF_5226: return "RT5226"; 1856 default: return "unknown"; 1857 } 1858} 1859 1860static void 1861rum_read_eeprom(struct rum_softc *sc) 1862{ 1863 uint16_t val; 1864#ifdef RUM_DEBUG 1865 int i; 1866#endif 1867 1868 /* read MAC address */ 1869 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 1870 1871 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1872 val = le16toh(val); 1873 sc->rf_rev = (val >> 11) & 0x1f; 1874 sc->hw_radio = (val >> 10) & 0x1; 1875 sc->rx_ant = (val >> 4) & 0x3; 1876 sc->tx_ant = (val >> 2) & 0x3; 1877 sc->nb_ant = val & 0x3; 1878 1879 DPRINTF("RF revision=%d\n", sc->rf_rev); 1880 1881 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1882 val = le16toh(val); 1883 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1884 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1885 1886 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1887 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1888 1889 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1890 val = le16toh(val); 1891 if ((val & 0xff) != 0xff) 1892 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1893 1894 /* Only [-10, 10] is valid */ 1895 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1896 sc->rssi_2ghz_corr = 0; 1897 1898 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1899 val = le16toh(val); 1900 if ((val & 0xff) != 0xff) 1901 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1902 1903 /* Only [-10, 10] is valid */ 1904 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1905 sc->rssi_5ghz_corr = 0; 1906 1907 if (sc->ext_2ghz_lna) 1908 sc->rssi_2ghz_corr -= 14; 1909 if (sc->ext_5ghz_lna) 1910 sc->rssi_5ghz_corr -= 14; 1911 1912 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1913 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1914 1915 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1916 val = le16toh(val); 1917 if ((val & 0xff) != 0xff) 1918 sc->rffreq = val & 0xff; 1919 1920 DPRINTF("RF freq=%d\n", sc->rffreq); 1921 1922 /* read Tx power for all a/b/g channels */ 1923 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1924 /* XXX default Tx power for 802.11a channels */ 1925 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1926#ifdef RUM_DEBUG 1927 for (i = 0; i < 14; i++) 1928 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1929#endif 1930 1931 /* read default values for BBP registers */ 1932 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1933#ifdef RUM_DEBUG 1934 for (i = 0; i < 14; i++) { 1935 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1936 continue; 1937 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1938 sc->bbp_prom[i].val); 1939 } 1940#endif 1941} 1942 1943static int 1944rum_bbp_init(struct rum_softc *sc) 1945{ 1946 int i, ntries; 1947 1948 /* wait for BBP to be ready */ 1949 for (ntries = 0; ntries < 100; ntries++) { 1950 const uint8_t val = rum_bbp_read(sc, 0); 1951 if (val != 0 && val != 0xff) 1952 break; 1953 if (rum_pause(sc, hz / 100)) 1954 break; 1955 } 1956 if (ntries == 100) { 1957 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1958 return EIO; 1959 } 1960 1961 /* initialize BBP registers to default values */ 1962 for (i = 0; i < nitems(rum_def_bbp); i++) 1963 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1964 1965 /* write vendor-specific BBP values (from EEPROM) */ 1966 for (i = 0; i < 16; i++) { 1967 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1968 continue; 1969 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1970 } 1971 1972 return 0; 1973} 1974 1975static void 1976rum_init(struct rum_softc *sc) 1977{ 1978 struct ieee80211com *ic = &sc->sc_ic; 1979 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1980 uint32_t tmp; 1981 usb_error_t error; 1982 int i, ntries; 1983 1984 RUM_LOCK_ASSERT(sc); 1985 1986 rum_stop(sc); 1987 1988 /* initialize MAC registers to default values */ 1989 for (i = 0; i < nitems(rum_def_mac); i++) 1990 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 1991 1992 /* set host ready */ 1993 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 1994 rum_write(sc, RT2573_MAC_CSR1, 0); 1995 1996 /* wait for BBP/RF to wakeup */ 1997 for (ntries = 0; ntries < 100; ntries++) { 1998 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 1999 break; 2000 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2001 if (rum_pause(sc, hz / 100)) 2002 break; 2003 } 2004 if (ntries == 100) { 2005 device_printf(sc->sc_dev, 2006 "timeout waiting for BBP/RF to wakeup\n"); 2007 goto fail; 2008 } 2009 2010 if ((error = rum_bbp_init(sc)) != 0) 2011 goto fail; 2012 2013 /* select default channel */ 2014 rum_select_band(sc, ic->ic_curchan); 2015 rum_select_antenna(sc); 2016 rum_set_chan(sc, ic->ic_curchan); 2017 2018 /* clear STA registers */ 2019 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2020 2021 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2022 2023 /* initialize ASIC */ 2024 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2025 2026 /* 2027 * Allocate Tx and Rx xfer queues. 2028 */ 2029 rum_setup_tx_list(sc); 2030 2031 /* update Rx filter */ 2032 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2033 2034 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2035 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2036 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2037 RT2573_DROP_ACKCTS; 2038 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2039 tmp |= RT2573_DROP_TODS; 2040 if (ic->ic_promisc == 0) 2041 tmp |= RT2573_DROP_NOT_TO_ME; 2042 } 2043 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2044 2045 sc->sc_running = 1; 2046 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2047 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2048 return; 2049 2050fail: rum_stop(sc); 2051#undef N 2052} 2053 2054static void 2055rum_stop(struct rum_softc *sc) 2056{ 2057 2058 RUM_LOCK_ASSERT(sc); 2059 2060 sc->sc_running = 0; 2061 2062 RUM_UNLOCK(sc); 2063 2064 /* 2065 * Drain the USB transfers, if not already drained: 2066 */ 2067 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2068 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2069 2070 RUM_LOCK(sc); 2071 2072 rum_unsetup_tx_list(sc); 2073 2074 /* disable Rx */ 2075 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2076 2077 /* reset ASIC */ 2078 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2079 rum_write(sc, RT2573_MAC_CSR1, 0); 2080} 2081 2082static void 2083rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2084{ 2085 struct usb_device_request req; 2086 uint16_t reg = RT2573_MCU_CODE_BASE; 2087 usb_error_t err; 2088 2089 /* copy firmware image into NIC */ 2090 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2091 err = rum_write(sc, reg, UGETDW(ucode)); 2092 if (err) { 2093 /* firmware already loaded ? */ 2094 device_printf(sc->sc_dev, "Firmware load " 2095 "failure! (ignored)\n"); 2096 break; 2097 } 2098 } 2099 2100 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2101 req.bRequest = RT2573_MCU_CNTL; 2102 USETW(req.wValue, RT2573_MCU_RUN); 2103 USETW(req.wIndex, 0); 2104 USETW(req.wLength, 0); 2105 2106 err = rum_do_request(sc, &req, NULL); 2107 if (err != 0) { 2108 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2109 usbd_errstr(err)); 2110 } 2111 2112 /* give the chip some time to boot */ 2113 rum_pause(sc, hz / 8); 2114} 2115 2116static void 2117rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2118{ 2119 struct ieee80211com *ic = vap->iv_ic; 2120 const struct ieee80211_txparam *tp; 2121 struct rum_tx_desc desc; 2122 struct mbuf *m0; 2123 2124 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2125 return; 2126 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2127 return; 2128 2129 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2130 if (m0 == NULL) 2131 return; 2132 2133 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2134 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2135 m0->m_pkthdr.len, tp->mgmtrate); 2136 2137 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2138 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2139 2140 /* copy beacon header and payload into NIC memory */ 2141 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2142 m0->m_pkthdr.len); 2143 2144 m_freem(m0); 2145} 2146 2147static int 2148rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2149 const struct ieee80211_bpf_params *params) 2150{ 2151 struct rum_softc *sc = ni->ni_ic->ic_softc; 2152 2153 RUM_LOCK(sc); 2154 /* prevent management frames from being sent if we're not ready */ 2155 if (!sc->sc_running) { 2156 RUM_UNLOCK(sc); 2157 m_freem(m); 2158 ieee80211_free_node(ni); 2159 return ENETDOWN; 2160 } 2161 if (sc->tx_nfree < RUM_TX_MINFREE) { 2162 RUM_UNLOCK(sc); 2163 m_freem(m); 2164 ieee80211_free_node(ni); 2165 return EIO; 2166 } 2167 2168 if (params == NULL) { 2169 /* 2170 * Legacy path; interpret frame contents to decide 2171 * precisely how to send the frame. 2172 */ 2173 if (rum_tx_mgt(sc, m, ni) != 0) 2174 goto bad; 2175 } else { 2176 /* 2177 * Caller supplied explicit parameters to use in 2178 * sending the frame. 2179 */ 2180 if (rum_tx_raw(sc, m, ni, params) != 0) 2181 goto bad; 2182 } 2183 RUM_UNLOCK(sc); 2184 2185 return 0; 2186bad: 2187 RUM_UNLOCK(sc); 2188 ieee80211_free_node(ni); 2189 return EIO; 2190} 2191 2192static void 2193rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2194{ 2195 struct ieee80211vap *vap = ni->ni_vap; 2196 struct rum_vap *rvp = RUM_VAP(vap); 2197 2198 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2199 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2200 2201 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2202} 2203 2204static void 2205rum_ratectl_timeout(void *arg) 2206{ 2207 struct rum_vap *rvp = arg; 2208 struct ieee80211vap *vap = &rvp->vap; 2209 struct ieee80211com *ic = vap->iv_ic; 2210 2211 ieee80211_runtask(ic, &rvp->ratectl_task); 2212} 2213 2214static void 2215rum_ratectl_task(void *arg, int pending) 2216{ 2217 struct rum_vap *rvp = arg; 2218 struct ieee80211vap *vap = &rvp->vap; 2219 struct ieee80211com *ic = vap->iv_ic; 2220 struct rum_softc *sc = ic->ic_softc; 2221 struct ieee80211_node *ni; 2222 int ok, fail; 2223 int sum, retrycnt; 2224 2225 RUM_LOCK(sc); 2226 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2227 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2228 2229 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2230 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2231 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2232 sum = ok+fail; 2233 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2234 2235 ni = ieee80211_ref_node(vap->iv_bss); 2236 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2237 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2238 ieee80211_free_node(ni); 2239 2240 /* count TX retry-fail as Tx errors */ 2241 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2242 2243 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2244 RUM_UNLOCK(sc); 2245} 2246 2247static void 2248rum_scan_start(struct ieee80211com *ic) 2249{ 2250 struct rum_softc *sc = ic->ic_softc; 2251 2252 RUM_LOCK(sc); 2253 rum_abort_tsf_sync(sc); 2254 rum_set_bssid(sc, ieee80211broadcastaddr); 2255 RUM_UNLOCK(sc); 2256 2257} 2258 2259static void 2260rum_scan_end(struct ieee80211com *ic) 2261{ 2262 struct rum_softc *sc = ic->ic_softc; 2263 2264 RUM_LOCK(sc); 2265 rum_enable_tsf_sync(sc); 2266 rum_set_bssid(sc, ic->ic_macaddr); 2267 RUM_UNLOCK(sc); 2268 2269} 2270 2271static void 2272rum_set_channel(struct ieee80211com *ic) 2273{ 2274 struct rum_softc *sc = ic->ic_softc; 2275 2276 RUM_LOCK(sc); 2277 rum_set_chan(sc, ic->ic_curchan); 2278 RUM_UNLOCK(sc); 2279} 2280 2281static int 2282rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2283{ 2284 struct ieee80211com *ic = &sc->sc_ic; 2285 int lna, agc, rssi; 2286 2287 lna = (raw >> 5) & 0x3; 2288 agc = raw & 0x1f; 2289 2290 if (lna == 0) { 2291 /* 2292 * No RSSI mapping 2293 * 2294 * NB: Since RSSI is relative to noise floor, -1 is 2295 * adequate for caller to know error happened. 2296 */ 2297 return -1; 2298 } 2299 2300 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2301 2302 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2303 rssi += sc->rssi_2ghz_corr; 2304 2305 if (lna == 1) 2306 rssi -= 64; 2307 else if (lna == 2) 2308 rssi -= 74; 2309 else if (lna == 3) 2310 rssi -= 90; 2311 } else { 2312 rssi += sc->rssi_5ghz_corr; 2313 2314 if (!sc->ext_5ghz_lna && lna != 1) 2315 rssi += 4; 2316 2317 if (lna == 1) 2318 rssi -= 64; 2319 else if (lna == 2) 2320 rssi -= 86; 2321 else if (lna == 3) 2322 rssi -= 100; 2323 } 2324 return rssi; 2325} 2326 2327static int 2328rum_pause(struct rum_softc *sc, int timeout) 2329{ 2330 2331 usb_pause_mtx(&sc->sc_mtx, timeout); 2332 return (0); 2333} 2334 2335static device_method_t rum_methods[] = { 2336 /* Device interface */ 2337 DEVMETHOD(device_probe, rum_match), 2338 DEVMETHOD(device_attach, rum_attach), 2339 DEVMETHOD(device_detach, rum_detach), 2340 DEVMETHOD_END 2341}; 2342 2343static driver_t rum_driver = { 2344 .name = "rum", 2345 .methods = rum_methods, 2346 .size = sizeof(struct rum_softc), 2347}; 2348 2349static devclass_t rum_devclass; 2350 2351DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2352MODULE_DEPEND(rum, wlan, 1, 1, 1); 2353MODULE_DEPEND(rum, usb, 1, 1, 1); 2354MODULE_VERSION(rum, 1); 2355