if_rum.c revision 257176
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 257176 2013-10-26 17:58:36Z glebius $ */ 2 3/*- 4 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org> 6 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21#include <sys/cdefs.h> 22__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_rum.c 257176 2013-10-26 17:58:36Z glebius $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include <sys/param.h> 30#include <sys/sockio.h> 31#include <sys/sysctl.h> 32#include <sys/lock.h> 33#include <sys/mutex.h> 34#include <sys/mbuf.h> 35#include <sys/kernel.h> 36#include <sys/socket.h> 37#include <sys/systm.h> 38#include <sys/malloc.h> 39#include <sys/module.h> 40#include <sys/bus.h> 41#include <sys/endian.h> 42#include <sys/kdb.h> 43 44#include <machine/bus.h> 45#include <machine/resource.h> 46#include <sys/rman.h> 47 48#include <net/bpf.h> 49#include <net/if.h> 50#include <net/if_var.h> 51#include <net/if_arp.h> 52#include <net/ethernet.h> 53#include <net/if_dl.h> 54#include <net/if_media.h> 55#include <net/if_types.h> 56 57#ifdef INET 58#include <netinet/in.h> 59#include <netinet/in_systm.h> 60#include <netinet/in_var.h> 61#include <netinet/if_ether.h> 62#include <netinet/ip.h> 63#endif 64 65#include <net80211/ieee80211_var.h> 66#include <net80211/ieee80211_regdomain.h> 67#include <net80211/ieee80211_radiotap.h> 68#include <net80211/ieee80211_ratectl.h> 69 70#include <dev/usb/usb.h> 71#include <dev/usb/usbdi.h> 72#include "usbdevs.h" 73 74#define USB_DEBUG_VAR rum_debug 75#include <dev/usb/usb_debug.h> 76 77#include <dev/usb/wlan/if_rumreg.h> 78#include <dev/usb/wlan/if_rumvar.h> 79#include <dev/usb/wlan/if_rumfw.h> 80 81#ifdef USB_DEBUG 82static int rum_debug = 0; 83 84static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 85SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RW, &rum_debug, 0, 86 "Debug level"); 87#endif 88 89#define N(a) ((int)(sizeof (a) / sizeof ((a)[0]))) 90 91static const STRUCT_USB_HOST_ID rum_devs[] = { 92#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 93 RUM_DEV(ABOCOM, HWU54DM), 94 RUM_DEV(ABOCOM, RT2573_2), 95 RUM_DEV(ABOCOM, RT2573_3), 96 RUM_DEV(ABOCOM, RT2573_4), 97 RUM_DEV(ABOCOM, WUG2700), 98 RUM_DEV(AMIT, CGWLUSB2GO), 99 RUM_DEV(ASUS, RT2573_1), 100 RUM_DEV(ASUS, RT2573_2), 101 RUM_DEV(BELKIN, F5D7050A), 102 RUM_DEV(BELKIN, F5D9050V3), 103 RUM_DEV(CISCOLINKSYS, WUSB54GC), 104 RUM_DEV(CISCOLINKSYS, WUSB54GR), 105 RUM_DEV(CONCEPTRONIC2, C54RU2), 106 RUM_DEV(COREGA, CGWLUSB2GL), 107 RUM_DEV(COREGA, CGWLUSB2GPX), 108 RUM_DEV(DICKSMITH, CWD854F), 109 RUM_DEV(DICKSMITH, RT2573), 110 RUM_DEV(EDIMAX, EW7318USG), 111 RUM_DEV(DLINK2, DWLG122C1), 112 RUM_DEV(DLINK2, WUA1340), 113 RUM_DEV(DLINK2, DWA111), 114 RUM_DEV(DLINK2, DWA110), 115 RUM_DEV(GIGABYTE, GNWB01GS), 116 RUM_DEV(GIGABYTE, GNWI05GS), 117 RUM_DEV(GIGASET, RT2573), 118 RUM_DEV(GOODWAY, RT2573), 119 RUM_DEV(GUILLEMOT, HWGUSB254LB), 120 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 121 RUM_DEV(HUAWEI3COM, WUB320G), 122 RUM_DEV(MELCO, G54HP), 123 RUM_DEV(MELCO, SG54HP), 124 RUM_DEV(MELCO, SG54HG), 125 RUM_DEV(MELCO, WLIUCG), 126 RUM_DEV(MELCO, WLRUCG), 127 RUM_DEV(MELCO, WLRUCGAOSS), 128 RUM_DEV(MSI, RT2573_1), 129 RUM_DEV(MSI, RT2573_2), 130 RUM_DEV(MSI, RT2573_3), 131 RUM_DEV(MSI, RT2573_4), 132 RUM_DEV(NOVATECH, RT2573), 133 RUM_DEV(PLANEX2, GWUS54HP), 134 RUM_DEV(PLANEX2, GWUS54MINI2), 135 RUM_DEV(PLANEX2, GWUSMM), 136 RUM_DEV(QCOM, RT2573), 137 RUM_DEV(QCOM, RT2573_2), 138 RUM_DEV(QCOM, RT2573_3), 139 RUM_DEV(RALINK, RT2573), 140 RUM_DEV(RALINK, RT2573_2), 141 RUM_DEV(RALINK, RT2671), 142 RUM_DEV(SITECOMEU, WL113R2), 143 RUM_DEV(SITECOMEU, WL172), 144 RUM_DEV(SPARKLAN, RT2573), 145 RUM_DEV(SURECOM, RT2573), 146#undef RUM_DEV 147}; 148 149static device_probe_t rum_match; 150static device_attach_t rum_attach; 151static device_detach_t rum_detach; 152 153static usb_callback_t rum_bulk_read_callback; 154static usb_callback_t rum_bulk_write_callback; 155 156static usb_error_t rum_do_request(struct rum_softc *sc, 157 struct usb_device_request *req, void *data); 158static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 159 const char [IFNAMSIZ], int, enum ieee80211_opmode, 160 int, const uint8_t [IEEE80211_ADDR_LEN], 161 const uint8_t [IEEE80211_ADDR_LEN]); 162static void rum_vap_delete(struct ieee80211vap *); 163static void rum_tx_free(struct rum_tx_data *, int); 164static void rum_setup_tx_list(struct rum_softc *); 165static void rum_unsetup_tx_list(struct rum_softc *); 166static int rum_newstate(struct ieee80211vap *, 167 enum ieee80211_state, int); 168static void rum_setup_tx_desc(struct rum_softc *, 169 struct rum_tx_desc *, uint32_t, uint16_t, int, 170 int); 171static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 172 struct ieee80211_node *); 173static int rum_tx_raw(struct rum_softc *, struct mbuf *, 174 struct ieee80211_node *, 175 const struct ieee80211_bpf_params *); 176static int rum_tx_data(struct rum_softc *, struct mbuf *, 177 struct ieee80211_node *); 178static void rum_start(struct ifnet *); 179static int rum_ioctl(struct ifnet *, u_long, caddr_t); 180static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 181 int); 182static uint32_t rum_read(struct rum_softc *, uint16_t); 183static void rum_read_multi(struct rum_softc *, uint16_t, void *, 184 int); 185static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 186static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 187 size_t); 188static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 189static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 190static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 191static void rum_select_antenna(struct rum_softc *); 192static void rum_enable_mrr(struct rum_softc *); 193static void rum_set_txpreamble(struct rum_softc *); 194static void rum_set_basicrates(struct rum_softc *); 195static void rum_select_band(struct rum_softc *, 196 struct ieee80211_channel *); 197static void rum_set_chan(struct rum_softc *, 198 struct ieee80211_channel *); 199static void rum_enable_tsf_sync(struct rum_softc *); 200static void rum_enable_tsf(struct rum_softc *); 201static void rum_update_slot(struct ifnet *); 202static void rum_set_bssid(struct rum_softc *, const uint8_t *); 203static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 204static void rum_update_mcast(struct ifnet *); 205static void rum_update_promisc(struct ifnet *); 206static void rum_setpromisc(struct rum_softc *); 207static const char *rum_get_rf(int); 208static void rum_read_eeprom(struct rum_softc *); 209static int rum_bbp_init(struct rum_softc *); 210static void rum_init_locked(struct rum_softc *); 211static void rum_init(void *); 212static void rum_stop(struct rum_softc *); 213static void rum_load_microcode(struct rum_softc *, const uint8_t *, 214 size_t); 215static void rum_prepare_beacon(struct rum_softc *, 216 struct ieee80211vap *); 217static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 218 const struct ieee80211_bpf_params *); 219static void rum_scan_start(struct ieee80211com *); 220static void rum_scan_end(struct ieee80211com *); 221static void rum_set_channel(struct ieee80211com *); 222static int rum_get_rssi(struct rum_softc *, uint8_t); 223static void rum_ratectl_start(struct rum_softc *, 224 struct ieee80211_node *); 225static void rum_ratectl_timeout(void *); 226static void rum_ratectl_task(void *, int); 227static int rum_pause(struct rum_softc *, int); 228 229static const struct { 230 uint32_t reg; 231 uint32_t val; 232} rum_def_mac[] = { 233 { RT2573_TXRX_CSR0, 0x025fb032 }, 234 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 235 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 236 { RT2573_TXRX_CSR3, 0x00858687 }, 237 { RT2573_TXRX_CSR7, 0x2e31353b }, 238 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 239 { RT2573_TXRX_CSR15, 0x0000000f }, 240 { RT2573_MAC_CSR6, 0x00000fff }, 241 { RT2573_MAC_CSR8, 0x016c030a }, 242 { RT2573_MAC_CSR10, 0x00000718 }, 243 { RT2573_MAC_CSR12, 0x00000004 }, 244 { RT2573_MAC_CSR13, 0x00007f00 }, 245 { RT2573_SEC_CSR0, 0x00000000 }, 246 { RT2573_SEC_CSR1, 0x00000000 }, 247 { RT2573_SEC_CSR5, 0x00000000 }, 248 { RT2573_PHY_CSR1, 0x000023b0 }, 249 { RT2573_PHY_CSR5, 0x00040a06 }, 250 { RT2573_PHY_CSR6, 0x00080606 }, 251 { RT2573_PHY_CSR7, 0x00000408 }, 252 { RT2573_AIFSN_CSR, 0x00002273 }, 253 { RT2573_CWMIN_CSR, 0x00002344 }, 254 { RT2573_CWMAX_CSR, 0x000034aa } 255}; 256 257static const struct { 258 uint8_t reg; 259 uint8_t val; 260} rum_def_bbp[] = { 261 { 3, 0x80 }, 262 { 15, 0x30 }, 263 { 17, 0x20 }, 264 { 21, 0xc8 }, 265 { 22, 0x38 }, 266 { 23, 0x06 }, 267 { 24, 0xfe }, 268 { 25, 0x0a }, 269 { 26, 0x0d }, 270 { 32, 0x0b }, 271 { 34, 0x12 }, 272 { 37, 0x07 }, 273 { 39, 0xf8 }, 274 { 41, 0x60 }, 275 { 53, 0x10 }, 276 { 54, 0x18 }, 277 { 60, 0x10 }, 278 { 61, 0x04 }, 279 { 62, 0x04 }, 280 { 75, 0xfe }, 281 { 86, 0xfe }, 282 { 88, 0xfe }, 283 { 90, 0x0f }, 284 { 99, 0x00 }, 285 { 102, 0x16 }, 286 { 107, 0x04 } 287}; 288 289static const struct rfprog { 290 uint8_t chan; 291 uint32_t r1, r2, r3, r4; 292} rum_rf5226[] = { 293 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 294 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 295 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 296 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 297 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 298 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 299 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 300 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 301 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 302 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 303 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 304 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 305 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 306 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 307 308 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 309 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 310 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 311 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 312 313 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 314 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 315 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 316 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 317 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 318 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 319 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 320 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 321 322 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 323 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 324 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 325 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 326 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 327 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 328 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 329 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 330 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 331 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 332 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 333 334 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 335 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 336 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 337 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 338 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 339}, rum_rf5225[] = { 340 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 341 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 342 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 343 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 344 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 345 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 346 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 347 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 348 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 349 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 350 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 351 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 352 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 353 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 354 355 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 356 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 357 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 358 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 359 360 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 361 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 362 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 363 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 364 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 365 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 366 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 367 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 368 369 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 370 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 371 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 372 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 373 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 374 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 375 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 376 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 377 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 378 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 379 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 380 381 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 382 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 383 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 384 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 385 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 386}; 387 388static const struct usb_config rum_config[RUM_N_TRANSFER] = { 389 [RUM_BULK_WR] = { 390 .type = UE_BULK, 391 .endpoint = UE_ADDR_ANY, 392 .direction = UE_DIR_OUT, 393 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 394 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 395 .callback = rum_bulk_write_callback, 396 .timeout = 5000, /* ms */ 397 }, 398 [RUM_BULK_RD] = { 399 .type = UE_BULK, 400 .endpoint = UE_ADDR_ANY, 401 .direction = UE_DIR_IN, 402 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 403 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 404 .callback = rum_bulk_read_callback, 405 }, 406}; 407 408static int 409rum_match(device_t self) 410{ 411 struct usb_attach_arg *uaa = device_get_ivars(self); 412 413 if (uaa->usb_mode != USB_MODE_HOST) 414 return (ENXIO); 415 if (uaa->info.bConfigIndex != 0) 416 return (ENXIO); 417 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 418 return (ENXIO); 419 420 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 421} 422 423static int 424rum_attach(device_t self) 425{ 426 struct usb_attach_arg *uaa = device_get_ivars(self); 427 struct rum_softc *sc = device_get_softc(self); 428 struct ieee80211com *ic; 429 struct ifnet *ifp; 430 uint8_t iface_index, bands; 431 uint32_t tmp; 432 int error, ntries; 433 434 device_set_usb_desc(self); 435 sc->sc_udev = uaa->device; 436 sc->sc_dev = self; 437 438 mtx_init(&sc->sc_mtx, device_get_nameunit(self), 439 MTX_NETWORK_LOCK, MTX_DEF); 440 441 iface_index = RT2573_IFACE_INDEX; 442 error = usbd_transfer_setup(uaa->device, &iface_index, 443 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 444 if (error) { 445 device_printf(self, "could not allocate USB transfers, " 446 "err=%s\n", usbd_errstr(error)); 447 goto detach; 448 } 449 450 RUM_LOCK(sc); 451 /* retrieve RT2573 rev. no */ 452 for (ntries = 0; ntries < 100; ntries++) { 453 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 454 break; 455 if (rum_pause(sc, hz / 100)) 456 break; 457 } 458 if (ntries == 100) { 459 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 460 RUM_UNLOCK(sc); 461 goto detach; 462 } 463 464 /* retrieve MAC address and various other things from EEPROM */ 465 rum_read_eeprom(sc); 466 467 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 468 tmp, rum_get_rf(sc->rf_rev)); 469 470 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 471 RUM_UNLOCK(sc); 472 473 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 474 if (ifp == NULL) { 475 device_printf(sc->sc_dev, "can not if_alloc()\n"); 476 goto detach; 477 } 478 ic = ifp->if_l2com; 479 480 ifp->if_softc = sc; 481 if_initname(ifp, "rum", device_get_unit(sc->sc_dev)); 482 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 483 ifp->if_init = rum_init; 484 ifp->if_ioctl = rum_ioctl; 485 ifp->if_start = rum_start; 486 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 487 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 488 IFQ_SET_READY(&ifp->if_snd); 489 490 ic->ic_ifp = ifp; 491 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 492 493 /* set device capabilities */ 494 ic->ic_caps = 495 IEEE80211_C_STA /* station mode supported */ 496 | IEEE80211_C_IBSS /* IBSS mode supported */ 497 | IEEE80211_C_MONITOR /* monitor mode supported */ 498 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 499 | IEEE80211_C_TXPMGT /* tx power management */ 500 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 501 | IEEE80211_C_SHSLOT /* short slot time supported */ 502 | IEEE80211_C_BGSCAN /* bg scanning supported */ 503 | IEEE80211_C_WPA /* 802.11i */ 504 ; 505 506 bands = 0; 507 setbit(&bands, IEEE80211_MODE_11B); 508 setbit(&bands, IEEE80211_MODE_11G); 509 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 510 setbit(&bands, IEEE80211_MODE_11A); 511 ieee80211_init_channels(ic, NULL, &bands); 512 513 ieee80211_ifattach(ic, sc->sc_bssid); 514 ic->ic_update_promisc = rum_update_promisc; 515 ic->ic_raw_xmit = rum_raw_xmit; 516 ic->ic_scan_start = rum_scan_start; 517 ic->ic_scan_end = rum_scan_end; 518 ic->ic_set_channel = rum_set_channel; 519 520 ic->ic_vap_create = rum_vap_create; 521 ic->ic_vap_delete = rum_vap_delete; 522 ic->ic_update_mcast = rum_update_mcast; 523 524 ieee80211_radiotap_attach(ic, 525 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 526 RT2573_TX_RADIOTAP_PRESENT, 527 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 528 RT2573_RX_RADIOTAP_PRESENT); 529 530 if (bootverbose) 531 ieee80211_announce(ic); 532 533 return (0); 534 535detach: 536 rum_detach(self); 537 return (ENXIO); /* failure */ 538} 539 540static int 541rum_detach(device_t self) 542{ 543 struct rum_softc *sc = device_get_softc(self); 544 struct ifnet *ifp = sc->sc_ifp; 545 struct ieee80211com *ic; 546 547 /* Prevent further ioctls */ 548 RUM_LOCK(sc); 549 sc->sc_detached = 1; 550 RUM_UNLOCK(sc); 551 552 /* stop all USB transfers */ 553 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 554 555 /* free TX list, if any */ 556 RUM_LOCK(sc); 557 rum_unsetup_tx_list(sc); 558 RUM_UNLOCK(sc); 559 560 if (ifp) { 561 ic = ifp->if_l2com; 562 ieee80211_ifdetach(ic); 563 if_free(ifp); 564 } 565 mtx_destroy(&sc->sc_mtx); 566 return (0); 567} 568 569static usb_error_t 570rum_do_request(struct rum_softc *sc, 571 struct usb_device_request *req, void *data) 572{ 573 usb_error_t err; 574 int ntries = 10; 575 576 while (ntries--) { 577 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 578 req, data, 0, NULL, 250 /* ms */); 579 if (err == 0) 580 break; 581 582 DPRINTFN(1, "Control request failed, %s (retrying)\n", 583 usbd_errstr(err)); 584 if (rum_pause(sc, hz / 100)) 585 break; 586 } 587 return (err); 588} 589 590static struct ieee80211vap * 591rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 592 enum ieee80211_opmode opmode, int flags, 593 const uint8_t bssid[IEEE80211_ADDR_LEN], 594 const uint8_t mac[IEEE80211_ADDR_LEN]) 595{ 596 struct rum_softc *sc = ic->ic_ifp->if_softc; 597 struct rum_vap *rvp; 598 struct ieee80211vap *vap; 599 600 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 601 return NULL; 602 rvp = (struct rum_vap *) malloc(sizeof(struct rum_vap), 603 M_80211_VAP, M_NOWAIT | M_ZERO); 604 if (rvp == NULL) 605 return NULL; 606 vap = &rvp->vap; 607 /* enable s/w bmiss handling for sta mode */ 608 ieee80211_vap_setup(ic, vap, name, unit, opmode, 609 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 610 611 /* override state transition machine */ 612 rvp->newstate = vap->iv_newstate; 613 vap->iv_newstate = rum_newstate; 614 615 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 616 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 617 ieee80211_ratectl_init(vap); 618 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 619 /* complete setup */ 620 ieee80211_vap_attach(vap, ieee80211_media_change, ieee80211_media_status); 621 ic->ic_opmode = opmode; 622 return vap; 623} 624 625static void 626rum_vap_delete(struct ieee80211vap *vap) 627{ 628 struct rum_vap *rvp = RUM_VAP(vap); 629 struct ieee80211com *ic = vap->iv_ic; 630 631 usb_callout_drain(&rvp->ratectl_ch); 632 ieee80211_draintask(ic, &rvp->ratectl_task); 633 ieee80211_ratectl_deinit(vap); 634 ieee80211_vap_detach(vap); 635 free(rvp, M_80211_VAP); 636} 637 638static void 639rum_tx_free(struct rum_tx_data *data, int txerr) 640{ 641 struct rum_softc *sc = data->sc; 642 643 if (data->m != NULL) { 644 if (data->m->m_flags & M_TXCB) 645 ieee80211_process_callback(data->ni, data->m, 646 txerr ? ETIMEDOUT : 0); 647 m_freem(data->m); 648 data->m = NULL; 649 650 ieee80211_free_node(data->ni); 651 data->ni = NULL; 652 } 653 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 654 sc->tx_nfree++; 655} 656 657static void 658rum_setup_tx_list(struct rum_softc *sc) 659{ 660 struct rum_tx_data *data; 661 int i; 662 663 sc->tx_nfree = 0; 664 STAILQ_INIT(&sc->tx_q); 665 STAILQ_INIT(&sc->tx_free); 666 667 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 668 data = &sc->tx_data[i]; 669 670 data->sc = sc; 671 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 672 sc->tx_nfree++; 673 } 674} 675 676static void 677rum_unsetup_tx_list(struct rum_softc *sc) 678{ 679 struct rum_tx_data *data; 680 int i; 681 682 /* make sure any subsequent use of the queues will fail */ 683 sc->tx_nfree = 0; 684 STAILQ_INIT(&sc->tx_q); 685 STAILQ_INIT(&sc->tx_free); 686 687 /* free up all node references and mbufs */ 688 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 689 data = &sc->tx_data[i]; 690 691 if (data->m != NULL) { 692 m_freem(data->m); 693 data->m = NULL; 694 } 695 if (data->ni != NULL) { 696 ieee80211_free_node(data->ni); 697 data->ni = NULL; 698 } 699 } 700} 701 702static int 703rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 704{ 705 struct rum_vap *rvp = RUM_VAP(vap); 706 struct ieee80211com *ic = vap->iv_ic; 707 struct rum_softc *sc = ic->ic_ifp->if_softc; 708 const struct ieee80211_txparam *tp; 709 enum ieee80211_state ostate; 710 struct ieee80211_node *ni; 711 uint32_t tmp; 712 713 ostate = vap->iv_state; 714 DPRINTF("%s -> %s\n", 715 ieee80211_state_name[ostate], 716 ieee80211_state_name[nstate]); 717 718 IEEE80211_UNLOCK(ic); 719 RUM_LOCK(sc); 720 usb_callout_stop(&rvp->ratectl_ch); 721 722 switch (nstate) { 723 case IEEE80211_S_INIT: 724 if (ostate == IEEE80211_S_RUN) { 725 /* abort TSF synchronization */ 726 tmp = rum_read(sc, RT2573_TXRX_CSR9); 727 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 728 } 729 break; 730 731 case IEEE80211_S_RUN: 732 ni = ieee80211_ref_node(vap->iv_bss); 733 734 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 735 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 736 RUM_UNLOCK(sc); 737 IEEE80211_LOCK(ic); 738 ieee80211_free_node(ni); 739 return (-1); 740 } 741 rum_update_slot(ic->ic_ifp); 742 rum_enable_mrr(sc); 743 rum_set_txpreamble(sc); 744 rum_set_basicrates(sc); 745 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 746 rum_set_bssid(sc, sc->sc_bssid); 747 } 748 749 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 750 vap->iv_opmode == IEEE80211_M_IBSS) 751 rum_prepare_beacon(sc, vap); 752 753 if (vap->iv_opmode != IEEE80211_M_MONITOR) 754 rum_enable_tsf_sync(sc); 755 else 756 rum_enable_tsf(sc); 757 758 /* enable automatic rate adaptation */ 759 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 760 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 761 rum_ratectl_start(sc, ni); 762 ieee80211_free_node(ni); 763 break; 764 default: 765 break; 766 } 767 RUM_UNLOCK(sc); 768 IEEE80211_LOCK(ic); 769 return (rvp->newstate(vap, nstate, arg)); 770} 771 772static void 773rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 774{ 775 struct rum_softc *sc = usbd_xfer_softc(xfer); 776 struct ifnet *ifp = sc->sc_ifp; 777 struct ieee80211vap *vap; 778 struct rum_tx_data *data; 779 struct mbuf *m; 780 struct usb_page_cache *pc; 781 unsigned int len; 782 int actlen, sumlen; 783 784 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 785 786 switch (USB_GET_STATE(xfer)) { 787 case USB_ST_TRANSFERRED: 788 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 789 790 /* free resources */ 791 data = usbd_xfer_get_priv(xfer); 792 rum_tx_free(data, 0); 793 usbd_xfer_set_priv(xfer, NULL); 794 795 ifp->if_opackets++; 796 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 797 798 /* FALLTHROUGH */ 799 case USB_ST_SETUP: 800tr_setup: 801 data = STAILQ_FIRST(&sc->tx_q); 802 if (data) { 803 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 804 m = data->m; 805 806 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 807 DPRINTFN(0, "data overflow, %u bytes\n", 808 m->m_pkthdr.len); 809 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 810 } 811 pc = usbd_xfer_get_frame(xfer, 0); 812 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 813 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 814 m->m_pkthdr.len); 815 816 vap = data->ni->ni_vap; 817 if (ieee80211_radiotap_active_vap(vap)) { 818 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 819 820 tap->wt_flags = 0; 821 tap->wt_rate = data->rate; 822 tap->wt_antenna = sc->tx_ant; 823 824 ieee80211_radiotap_tx(vap, m); 825 } 826 827 /* align end on a 4-bytes boundary */ 828 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 829 if ((len % 64) == 0) 830 len += 4; 831 832 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 833 m->m_pkthdr.len, len); 834 835 usbd_xfer_set_frame_len(xfer, 0, len); 836 usbd_xfer_set_priv(xfer, data); 837 838 usbd_transfer_submit(xfer); 839 } 840 RUM_UNLOCK(sc); 841 rum_start(ifp); 842 RUM_LOCK(sc); 843 break; 844 845 default: /* Error */ 846 DPRINTFN(11, "transfer error, %s\n", 847 usbd_errstr(error)); 848 849 ifp->if_oerrors++; 850 data = usbd_xfer_get_priv(xfer); 851 if (data != NULL) { 852 rum_tx_free(data, error); 853 usbd_xfer_set_priv(xfer, NULL); 854 } 855 856 if (error != USB_ERR_CANCELLED) { 857 if (error == USB_ERR_TIMEOUT) 858 device_printf(sc->sc_dev, "device timeout\n"); 859 860 /* 861 * Try to clear stall first, also if other 862 * errors occur, hence clearing stall 863 * introduces a 50 ms delay: 864 */ 865 usbd_xfer_set_stall(xfer); 866 goto tr_setup; 867 } 868 break; 869 } 870} 871 872static void 873rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 874{ 875 struct rum_softc *sc = usbd_xfer_softc(xfer); 876 struct ifnet *ifp = sc->sc_ifp; 877 struct ieee80211com *ic = ifp->if_l2com; 878 struct ieee80211_node *ni; 879 struct mbuf *m = NULL; 880 struct usb_page_cache *pc; 881 uint32_t flags; 882 uint8_t rssi = 0; 883 int len; 884 885 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 886 887 switch (USB_GET_STATE(xfer)) { 888 case USB_ST_TRANSFERRED: 889 890 DPRINTFN(15, "rx done, actlen=%d\n", len); 891 892 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 893 DPRINTF("%s: xfer too short %d\n", 894 device_get_nameunit(sc->sc_dev), len); 895 ifp->if_ierrors++; 896 goto tr_setup; 897 } 898 899 len -= RT2573_RX_DESC_SIZE; 900 pc = usbd_xfer_get_frame(xfer, 0); 901 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 902 903 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 904 flags = le32toh(sc->sc_rx_desc.flags); 905 if (flags & RT2573_RX_CRC_ERROR) { 906 /* 907 * This should not happen since we did not 908 * request to receive those frames when we 909 * filled RUM_TXRX_CSR2: 910 */ 911 DPRINTFN(5, "PHY or CRC error\n"); 912 ifp->if_ierrors++; 913 goto tr_setup; 914 } 915 916 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 917 if (m == NULL) { 918 DPRINTF("could not allocate mbuf\n"); 919 ifp->if_ierrors++; 920 goto tr_setup; 921 } 922 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 923 mtod(m, uint8_t *), len); 924 925 /* finalize mbuf */ 926 m->m_pkthdr.rcvif = ifp; 927 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 928 929 if (ieee80211_radiotap_active(ic)) { 930 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 931 932 /* XXX read tsf */ 933 tap->wr_flags = 0; 934 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 935 (flags & RT2573_RX_OFDM) ? 936 IEEE80211_T_OFDM : IEEE80211_T_CCK); 937 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 938 tap->wr_antnoise = RT2573_NOISE_FLOOR; 939 tap->wr_antenna = sc->rx_ant; 940 } 941 /* FALLTHROUGH */ 942 case USB_ST_SETUP: 943tr_setup: 944 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 945 usbd_transfer_submit(xfer); 946 947 /* 948 * At the end of a USB callback it is always safe to unlock 949 * the private mutex of a device! That is why we do the 950 * "ieee80211_input" here, and not some lines up! 951 */ 952 RUM_UNLOCK(sc); 953 if (m) { 954 ni = ieee80211_find_rxnode(ic, 955 mtod(m, struct ieee80211_frame_min *)); 956 if (ni != NULL) { 957 (void) ieee80211_input(ni, m, rssi, 958 RT2573_NOISE_FLOOR); 959 ieee80211_free_node(ni); 960 } else 961 (void) ieee80211_input_all(ic, m, rssi, 962 RT2573_NOISE_FLOOR); 963 } 964 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0 && 965 !IFQ_IS_EMPTY(&ifp->if_snd)) 966 rum_start(ifp); 967 RUM_LOCK(sc); 968 return; 969 970 default: /* Error */ 971 if (error != USB_ERR_CANCELLED) { 972 /* try to clear stall first */ 973 usbd_xfer_set_stall(xfer); 974 goto tr_setup; 975 } 976 return; 977 } 978} 979 980static uint8_t 981rum_plcp_signal(int rate) 982{ 983 switch (rate) { 984 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 985 case 12: return 0xb; 986 case 18: return 0xf; 987 case 24: return 0xa; 988 case 36: return 0xe; 989 case 48: return 0x9; 990 case 72: return 0xd; 991 case 96: return 0x8; 992 case 108: return 0xc; 993 994 /* CCK rates (NB: not IEEE std, device-specific) */ 995 case 2: return 0x0; 996 case 4: return 0x1; 997 case 11: return 0x2; 998 case 22: return 0x3; 999 } 1000 return 0xff; /* XXX unsupported/unknown rate */ 1001} 1002 1003static void 1004rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1005 uint32_t flags, uint16_t xflags, int len, int rate) 1006{ 1007 struct ifnet *ifp = sc->sc_ifp; 1008 struct ieee80211com *ic = ifp->if_l2com; 1009 uint16_t plcp_length; 1010 int remainder; 1011 1012 desc->flags = htole32(flags); 1013 desc->flags |= htole32(RT2573_TX_VALID); 1014 desc->flags |= htole32(len << 16); 1015 1016 desc->xflags = htole16(xflags); 1017 1018 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1019 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1020 1021 /* setup PLCP fields */ 1022 desc->plcp_signal = rum_plcp_signal(rate); 1023 desc->plcp_service = 4; 1024 1025 len += IEEE80211_CRC_LEN; 1026 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1027 desc->flags |= htole32(RT2573_TX_OFDM); 1028 1029 plcp_length = len & 0xfff; 1030 desc->plcp_length_hi = plcp_length >> 6; 1031 desc->plcp_length_lo = plcp_length & 0x3f; 1032 } else { 1033 plcp_length = (16 * len + rate - 1) / rate; 1034 if (rate == 22) { 1035 remainder = (16 * len) % 22; 1036 if (remainder != 0 && remainder < 7) 1037 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1038 } 1039 desc->plcp_length_hi = plcp_length >> 8; 1040 desc->plcp_length_lo = plcp_length & 0xff; 1041 1042 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1043 desc->plcp_signal |= 0x08; 1044 } 1045} 1046 1047static int 1048rum_sendprot(struct rum_softc *sc, 1049 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1050{ 1051 struct ieee80211com *ic = ni->ni_ic; 1052 const struct ieee80211_frame *wh; 1053 struct rum_tx_data *data; 1054 struct mbuf *mprot; 1055 int protrate, ackrate, pktlen, flags, isshort; 1056 uint16_t dur; 1057 1058 RUM_LOCK_ASSERT(sc, MA_OWNED); 1059 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1060 ("protection %d", prot)); 1061 1062 wh = mtod(m, const struct ieee80211_frame *); 1063 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1064 1065 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1066 ackrate = ieee80211_ack_rate(ic->ic_rt, rate); 1067 1068 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1069 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1070 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1071 flags = RT2573_TX_MORE_FRAG; 1072 if (prot == IEEE80211_PROT_RTSCTS) { 1073 /* NB: CTS is the same size as an ACK */ 1074 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1075 flags |= RT2573_TX_NEED_ACK; 1076 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1077 } else { 1078 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1079 } 1080 if (mprot == NULL) { 1081 /* XXX stat + msg */ 1082 return (ENOBUFS); 1083 } 1084 data = STAILQ_FIRST(&sc->tx_free); 1085 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1086 sc->tx_nfree--; 1087 1088 data->m = mprot; 1089 data->ni = ieee80211_ref_node(ni); 1090 data->rate = protrate; 1091 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1092 1093 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1094 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1095 1096 return 0; 1097} 1098 1099static int 1100rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1101{ 1102 struct ieee80211vap *vap = ni->ni_vap; 1103 struct ifnet *ifp = sc->sc_ifp; 1104 struct ieee80211com *ic = ifp->if_l2com; 1105 struct rum_tx_data *data; 1106 struct ieee80211_frame *wh; 1107 const struct ieee80211_txparam *tp; 1108 struct ieee80211_key *k; 1109 uint32_t flags = 0; 1110 uint16_t dur; 1111 1112 RUM_LOCK_ASSERT(sc, MA_OWNED); 1113 1114 data = STAILQ_FIRST(&sc->tx_free); 1115 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1116 sc->tx_nfree--; 1117 1118 wh = mtod(m0, struct ieee80211_frame *); 1119 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1120 k = ieee80211_crypto_encap(ni, m0); 1121 if (k == NULL) { 1122 m_freem(m0); 1123 return ENOBUFS; 1124 } 1125 wh = mtod(m0, struct ieee80211_frame *); 1126 } 1127 1128 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1129 1130 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1131 flags |= RT2573_TX_NEED_ACK; 1132 1133 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1134 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1135 *(uint16_t *)wh->i_dur = htole16(dur); 1136 1137 /* tell hardware to add timestamp for probe responses */ 1138 if ((wh->i_fc[0] & 1139 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1140 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1141 flags |= RT2573_TX_TIMESTAMP; 1142 } 1143 1144 data->m = m0; 1145 data->ni = ni; 1146 data->rate = tp->mgmtrate; 1147 1148 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1149 1150 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1151 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1152 1153 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1154 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1155 1156 return (0); 1157} 1158 1159static int 1160rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1161 const struct ieee80211_bpf_params *params) 1162{ 1163 struct ieee80211com *ic = ni->ni_ic; 1164 struct rum_tx_data *data; 1165 uint32_t flags; 1166 int rate, error; 1167 1168 RUM_LOCK_ASSERT(sc, MA_OWNED); 1169 KASSERT(params != NULL, ("no raw xmit params")); 1170 1171 rate = params->ibp_rate0; 1172 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1173 m_freem(m0); 1174 return EINVAL; 1175 } 1176 flags = 0; 1177 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1178 flags |= RT2573_TX_NEED_ACK; 1179 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1180 error = rum_sendprot(sc, m0, ni, 1181 params->ibp_flags & IEEE80211_BPF_RTS ? 1182 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1183 rate); 1184 if (error || sc->tx_nfree == 0) { 1185 m_freem(m0); 1186 return ENOBUFS; 1187 } 1188 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1189 } 1190 1191 data = STAILQ_FIRST(&sc->tx_free); 1192 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1193 sc->tx_nfree--; 1194 1195 data->m = m0; 1196 data->ni = ni; 1197 data->rate = rate; 1198 1199 /* XXX need to setup descriptor ourself */ 1200 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1201 1202 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1203 m0->m_pkthdr.len, rate); 1204 1205 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1206 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1207 1208 return 0; 1209} 1210 1211static int 1212rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1213{ 1214 struct ieee80211vap *vap = ni->ni_vap; 1215 struct ifnet *ifp = sc->sc_ifp; 1216 struct ieee80211com *ic = ifp->if_l2com; 1217 struct rum_tx_data *data; 1218 struct ieee80211_frame *wh; 1219 const struct ieee80211_txparam *tp; 1220 struct ieee80211_key *k; 1221 uint32_t flags = 0; 1222 uint16_t dur; 1223 int error, rate; 1224 1225 RUM_LOCK_ASSERT(sc, MA_OWNED); 1226 1227 wh = mtod(m0, struct ieee80211_frame *); 1228 1229 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1230 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1231 rate = tp->mcastrate; 1232 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1233 rate = tp->ucastrate; 1234 else 1235 rate = ni->ni_txrate; 1236 1237 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1238 k = ieee80211_crypto_encap(ni, m0); 1239 if (k == NULL) { 1240 m_freem(m0); 1241 return ENOBUFS; 1242 } 1243 1244 /* packet header may have moved, reset our local pointer */ 1245 wh = mtod(m0, struct ieee80211_frame *); 1246 } 1247 1248 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1249 int prot = IEEE80211_PROT_NONE; 1250 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1251 prot = IEEE80211_PROT_RTSCTS; 1252 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1253 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1254 prot = ic->ic_protmode; 1255 if (prot != IEEE80211_PROT_NONE) { 1256 error = rum_sendprot(sc, m0, ni, prot, rate); 1257 if (error || sc->tx_nfree == 0) { 1258 m_freem(m0); 1259 return ENOBUFS; 1260 } 1261 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1262 } 1263 } 1264 1265 data = STAILQ_FIRST(&sc->tx_free); 1266 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1267 sc->tx_nfree--; 1268 1269 data->m = m0; 1270 data->ni = ni; 1271 data->rate = rate; 1272 1273 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1274 flags |= RT2573_TX_NEED_ACK; 1275 flags |= RT2573_TX_MORE_FRAG; 1276 1277 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1278 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1279 *(uint16_t *)wh->i_dur = htole16(dur); 1280 } 1281 1282 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1283 1284 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1285 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1286 1287 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1288 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1289 1290 return 0; 1291} 1292 1293static void 1294rum_start(struct ifnet *ifp) 1295{ 1296 struct rum_softc *sc = ifp->if_softc; 1297 struct ieee80211_node *ni; 1298 struct mbuf *m; 1299 1300 RUM_LOCK(sc); 1301 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1302 RUM_UNLOCK(sc); 1303 return; 1304 } 1305 for (;;) { 1306 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 1307 if (m == NULL) 1308 break; 1309 if (sc->tx_nfree < RUM_TX_MINFREE) { 1310 IFQ_DRV_PREPEND(&ifp->if_snd, m); 1311 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1312 break; 1313 } 1314 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1315 if (rum_tx_data(sc, m, ni) != 0) { 1316 ieee80211_free_node(ni); 1317 ifp->if_oerrors++; 1318 break; 1319 } 1320 } 1321 RUM_UNLOCK(sc); 1322} 1323 1324static int 1325rum_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1326{ 1327 struct rum_softc *sc = ifp->if_softc; 1328 struct ieee80211com *ic = ifp->if_l2com; 1329 struct ifreq *ifr = (struct ifreq *) data; 1330 int error; 1331 int startall = 0; 1332 1333 RUM_LOCK(sc); 1334 error = sc->sc_detached ? ENXIO : 0; 1335 RUM_UNLOCK(sc); 1336 if (error) 1337 return (error); 1338 1339 switch (cmd) { 1340 case SIOCSIFFLAGS: 1341 RUM_LOCK(sc); 1342 if (ifp->if_flags & IFF_UP) { 1343 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1344 rum_init_locked(sc); 1345 startall = 1; 1346 } else 1347 rum_setpromisc(sc); 1348 } else { 1349 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1350 rum_stop(sc); 1351 } 1352 RUM_UNLOCK(sc); 1353 if (startall) 1354 ieee80211_start_all(ic); 1355 break; 1356 case SIOCGIFMEDIA: 1357 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1358 break; 1359 case SIOCGIFADDR: 1360 error = ether_ioctl(ifp, cmd, data); 1361 break; 1362 default: 1363 error = EINVAL; 1364 break; 1365 } 1366 return error; 1367} 1368 1369static void 1370rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1371{ 1372 struct usb_device_request req; 1373 usb_error_t error; 1374 1375 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1376 req.bRequest = RT2573_READ_EEPROM; 1377 USETW(req.wValue, 0); 1378 USETW(req.wIndex, addr); 1379 USETW(req.wLength, len); 1380 1381 error = rum_do_request(sc, &req, buf); 1382 if (error != 0) { 1383 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1384 usbd_errstr(error)); 1385 } 1386} 1387 1388static uint32_t 1389rum_read(struct rum_softc *sc, uint16_t reg) 1390{ 1391 uint32_t val; 1392 1393 rum_read_multi(sc, reg, &val, sizeof val); 1394 1395 return le32toh(val); 1396} 1397 1398static void 1399rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1400{ 1401 struct usb_device_request req; 1402 usb_error_t error; 1403 1404 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1405 req.bRequest = RT2573_READ_MULTI_MAC; 1406 USETW(req.wValue, 0); 1407 USETW(req.wIndex, reg); 1408 USETW(req.wLength, len); 1409 1410 error = rum_do_request(sc, &req, buf); 1411 if (error != 0) { 1412 device_printf(sc->sc_dev, 1413 "could not multi read MAC register: %s\n", 1414 usbd_errstr(error)); 1415 } 1416} 1417 1418static usb_error_t 1419rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1420{ 1421 uint32_t tmp = htole32(val); 1422 1423 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1424} 1425 1426static usb_error_t 1427rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1428{ 1429 struct usb_device_request req; 1430 usb_error_t error; 1431 size_t offset; 1432 1433 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1434 req.bRequest = RT2573_WRITE_MULTI_MAC; 1435 USETW(req.wValue, 0); 1436 1437 /* write at most 64 bytes at a time */ 1438 for (offset = 0; offset < len; offset += 64) { 1439 USETW(req.wIndex, reg + offset); 1440 USETW(req.wLength, MIN(len - offset, 64)); 1441 1442 error = rum_do_request(sc, &req, (char *)buf + offset); 1443 if (error != 0) { 1444 device_printf(sc->sc_dev, 1445 "could not multi write MAC register: %s\n", 1446 usbd_errstr(error)); 1447 return (error); 1448 } 1449 } 1450 1451 return (USB_ERR_NORMAL_COMPLETION); 1452} 1453 1454static void 1455rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1456{ 1457 uint32_t tmp; 1458 int ntries; 1459 1460 DPRINTFN(2, "reg=0x%08x\n", reg); 1461 1462 for (ntries = 0; ntries < 100; ntries++) { 1463 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1464 break; 1465 if (rum_pause(sc, hz / 100)) 1466 break; 1467 } 1468 if (ntries == 100) { 1469 device_printf(sc->sc_dev, "could not write to BBP\n"); 1470 return; 1471 } 1472 1473 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1474 rum_write(sc, RT2573_PHY_CSR3, tmp); 1475} 1476 1477static uint8_t 1478rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1479{ 1480 uint32_t val; 1481 int ntries; 1482 1483 DPRINTFN(2, "reg=0x%08x\n", reg); 1484 1485 for (ntries = 0; ntries < 100; ntries++) { 1486 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1487 break; 1488 if (rum_pause(sc, hz / 100)) 1489 break; 1490 } 1491 if (ntries == 100) { 1492 device_printf(sc->sc_dev, "could not read BBP\n"); 1493 return 0; 1494 } 1495 1496 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1497 rum_write(sc, RT2573_PHY_CSR3, val); 1498 1499 for (ntries = 0; ntries < 100; ntries++) { 1500 val = rum_read(sc, RT2573_PHY_CSR3); 1501 if (!(val & RT2573_BBP_BUSY)) 1502 return val & 0xff; 1503 if (rum_pause(sc, hz / 100)) 1504 break; 1505 } 1506 1507 device_printf(sc->sc_dev, "could not read BBP\n"); 1508 return 0; 1509} 1510 1511static void 1512rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1513{ 1514 uint32_t tmp; 1515 int ntries; 1516 1517 for (ntries = 0; ntries < 100; ntries++) { 1518 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1519 break; 1520 if (rum_pause(sc, hz / 100)) 1521 break; 1522 } 1523 if (ntries == 100) { 1524 device_printf(sc->sc_dev, "could not write to RF\n"); 1525 return; 1526 } 1527 1528 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1529 (reg & 3); 1530 rum_write(sc, RT2573_PHY_CSR4, tmp); 1531 1532 /* remember last written value in sc */ 1533 sc->rf_regs[reg] = val; 1534 1535 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1536} 1537 1538static void 1539rum_select_antenna(struct rum_softc *sc) 1540{ 1541 uint8_t bbp4, bbp77; 1542 uint32_t tmp; 1543 1544 bbp4 = rum_bbp_read(sc, 4); 1545 bbp77 = rum_bbp_read(sc, 77); 1546 1547 /* TBD */ 1548 1549 /* make sure Rx is disabled before switching antenna */ 1550 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1551 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1552 1553 rum_bbp_write(sc, 4, bbp4); 1554 rum_bbp_write(sc, 77, bbp77); 1555 1556 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1557} 1558 1559/* 1560 * Enable multi-rate retries for frames sent at OFDM rates. 1561 * In 802.11b/g mode, allow fallback to CCK rates. 1562 */ 1563static void 1564rum_enable_mrr(struct rum_softc *sc) 1565{ 1566 struct ifnet *ifp = sc->sc_ifp; 1567 struct ieee80211com *ic = ifp->if_l2com; 1568 uint32_t tmp; 1569 1570 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1571 1572 tmp &= ~RT2573_MRR_CCK_FALLBACK; 1573 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) 1574 tmp |= RT2573_MRR_CCK_FALLBACK; 1575 tmp |= RT2573_MRR_ENABLED; 1576 1577 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1578} 1579 1580static void 1581rum_set_txpreamble(struct rum_softc *sc) 1582{ 1583 struct ifnet *ifp = sc->sc_ifp; 1584 struct ieee80211com *ic = ifp->if_l2com; 1585 uint32_t tmp; 1586 1587 tmp = rum_read(sc, RT2573_TXRX_CSR4); 1588 1589 tmp &= ~RT2573_SHORT_PREAMBLE; 1590 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1591 tmp |= RT2573_SHORT_PREAMBLE; 1592 1593 rum_write(sc, RT2573_TXRX_CSR4, tmp); 1594} 1595 1596static void 1597rum_set_basicrates(struct rum_softc *sc) 1598{ 1599 struct ifnet *ifp = sc->sc_ifp; 1600 struct ieee80211com *ic = ifp->if_l2com; 1601 1602 /* update basic rate set */ 1603 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1604 /* 11b basic rates: 1, 2Mbps */ 1605 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1606 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1607 /* 11a basic rates: 6, 12, 24Mbps */ 1608 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1609 } else { 1610 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1611 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1612 } 1613} 1614 1615/* 1616 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1617 * driver. 1618 */ 1619static void 1620rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1621{ 1622 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1623 uint32_t tmp; 1624 1625 /* update all BBP registers that depend on the band */ 1626 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1627 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1628 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1629 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1630 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1631 } 1632 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1633 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1634 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1635 } 1636 1637 sc->bbp17 = bbp17; 1638 rum_bbp_write(sc, 17, bbp17); 1639 rum_bbp_write(sc, 96, bbp96); 1640 rum_bbp_write(sc, 104, bbp104); 1641 1642 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1643 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1644 rum_bbp_write(sc, 75, 0x80); 1645 rum_bbp_write(sc, 86, 0x80); 1646 rum_bbp_write(sc, 88, 0x80); 1647 } 1648 1649 rum_bbp_write(sc, 35, bbp35); 1650 rum_bbp_write(sc, 97, bbp97); 1651 rum_bbp_write(sc, 98, bbp98); 1652 1653 tmp = rum_read(sc, RT2573_PHY_CSR0); 1654 tmp &= ~(RT2573_PA_PE_2GHZ | RT2573_PA_PE_5GHZ); 1655 if (IEEE80211_IS_CHAN_2GHZ(c)) 1656 tmp |= RT2573_PA_PE_2GHZ; 1657 else 1658 tmp |= RT2573_PA_PE_5GHZ; 1659 rum_write(sc, RT2573_PHY_CSR0, tmp); 1660} 1661 1662static void 1663rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1664{ 1665 struct ifnet *ifp = sc->sc_ifp; 1666 struct ieee80211com *ic = ifp->if_l2com; 1667 const struct rfprog *rfprog; 1668 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1669 int8_t power; 1670 int i, chan; 1671 1672 chan = ieee80211_chan2ieee(ic, c); 1673 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1674 return; 1675 1676 /* select the appropriate RF settings based on what EEPROM says */ 1677 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1678 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1679 1680 /* find the settings for this channel (we know it exists) */ 1681 for (i = 0; rfprog[i].chan != chan; i++); 1682 1683 power = sc->txpow[i]; 1684 if (power < 0) { 1685 bbp94 += power; 1686 power = 0; 1687 } else if (power > 31) { 1688 bbp94 += power - 31; 1689 power = 31; 1690 } 1691 1692 /* 1693 * If we are switching from the 2GHz band to the 5GHz band or 1694 * vice-versa, BBP registers need to be reprogrammed. 1695 */ 1696 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1697 rum_select_band(sc, c); 1698 rum_select_antenna(sc); 1699 } 1700 ic->ic_curchan = c; 1701 1702 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1703 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1704 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1705 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1706 1707 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1708 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1709 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1710 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1711 1712 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1713 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1714 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1715 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1716 1717 rum_pause(sc, hz / 100); 1718 1719 /* enable smart mode for MIMO-capable RFs */ 1720 bbp3 = rum_bbp_read(sc, 3); 1721 1722 bbp3 &= ~RT2573_SMART_MODE; 1723 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1724 bbp3 |= RT2573_SMART_MODE; 1725 1726 rum_bbp_write(sc, 3, bbp3); 1727 1728 if (bbp94 != RT2573_BBPR94_DEFAULT) 1729 rum_bbp_write(sc, 94, bbp94); 1730 1731 /* give the chip some extra time to do the switchover */ 1732 rum_pause(sc, hz / 100); 1733} 1734 1735/* 1736 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1737 * and HostAP operating modes. 1738 */ 1739static void 1740rum_enable_tsf_sync(struct rum_softc *sc) 1741{ 1742 struct ifnet *ifp = sc->sc_ifp; 1743 struct ieee80211com *ic = ifp->if_l2com; 1744 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1745 uint32_t tmp; 1746 1747 if (vap->iv_opmode != IEEE80211_M_STA) { 1748 /* 1749 * Change default 16ms TBTT adjustment to 8ms. 1750 * Must be done before enabling beacon generation. 1751 */ 1752 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1753 } 1754 1755 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1756 1757 /* set beacon interval (in 1/16ms unit) */ 1758 tmp |= vap->iv_bss->ni_intval * 16; 1759 1760 tmp |= RT2573_TSF_TICKING | RT2573_ENABLE_TBTT; 1761 if (vap->iv_opmode == IEEE80211_M_STA) 1762 tmp |= RT2573_TSF_MODE(1); 1763 else 1764 tmp |= RT2573_TSF_MODE(2) | RT2573_GENERATE_BEACON; 1765 1766 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1767} 1768 1769static void 1770rum_enable_tsf(struct rum_softc *sc) 1771{ 1772 rum_write(sc, RT2573_TXRX_CSR9, 1773 (rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000) | 1774 RT2573_TSF_TICKING | RT2573_TSF_MODE(2)); 1775} 1776 1777static void 1778rum_update_slot(struct ifnet *ifp) 1779{ 1780 struct rum_softc *sc = ifp->if_softc; 1781 struct ieee80211com *ic = ifp->if_l2com; 1782 uint8_t slottime; 1783 uint32_t tmp; 1784 1785 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1786 1787 tmp = rum_read(sc, RT2573_MAC_CSR9); 1788 tmp = (tmp & ~0xff) | slottime; 1789 rum_write(sc, RT2573_MAC_CSR9, tmp); 1790 1791 DPRINTF("setting slot time to %uus\n", slottime); 1792} 1793 1794static void 1795rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1796{ 1797 uint32_t tmp; 1798 1799 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1800 rum_write(sc, RT2573_MAC_CSR4, tmp); 1801 1802 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1803 rum_write(sc, RT2573_MAC_CSR5, tmp); 1804} 1805 1806static void 1807rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1808{ 1809 uint32_t tmp; 1810 1811 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1812 rum_write(sc, RT2573_MAC_CSR2, tmp); 1813 1814 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1815 rum_write(sc, RT2573_MAC_CSR3, tmp); 1816} 1817 1818static void 1819rum_setpromisc(struct rum_softc *sc) 1820{ 1821 struct ifnet *ifp = sc->sc_ifp; 1822 uint32_t tmp; 1823 1824 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1825 1826 tmp &= ~RT2573_DROP_NOT_TO_ME; 1827 if (!(ifp->if_flags & IFF_PROMISC)) 1828 tmp |= RT2573_DROP_NOT_TO_ME; 1829 1830 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1831 1832 DPRINTF("%s promiscuous mode\n", (ifp->if_flags & IFF_PROMISC) ? 1833 "entering" : "leaving"); 1834} 1835 1836static void 1837rum_update_promisc(struct ifnet *ifp) 1838{ 1839 struct rum_softc *sc = ifp->if_softc; 1840 1841 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1842 return; 1843 1844 RUM_LOCK(sc); 1845 rum_setpromisc(sc); 1846 RUM_UNLOCK(sc); 1847} 1848 1849static void 1850rum_update_mcast(struct ifnet *ifp) 1851{ 1852 static int warning_printed; 1853 1854 if (warning_printed == 0) { 1855 if_printf(ifp, "need to implement %s\n", __func__); 1856 warning_printed = 1; 1857 } 1858} 1859 1860static const char * 1861rum_get_rf(int rev) 1862{ 1863 switch (rev) { 1864 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1865 case RT2573_RF_2528: return "RT2528"; 1866 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1867 case RT2573_RF_5226: return "RT5226"; 1868 default: return "unknown"; 1869 } 1870} 1871 1872static void 1873rum_read_eeprom(struct rum_softc *sc) 1874{ 1875 uint16_t val; 1876#ifdef RUM_DEBUG 1877 int i; 1878#endif 1879 1880 /* read MAC address */ 1881 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_bssid, 6); 1882 1883 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1884 val = le16toh(val); 1885 sc->rf_rev = (val >> 11) & 0x1f; 1886 sc->hw_radio = (val >> 10) & 0x1; 1887 sc->rx_ant = (val >> 4) & 0x3; 1888 sc->tx_ant = (val >> 2) & 0x3; 1889 sc->nb_ant = val & 0x3; 1890 1891 DPRINTF("RF revision=%d\n", sc->rf_rev); 1892 1893 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1894 val = le16toh(val); 1895 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1896 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1897 1898 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1899 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1900 1901 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1902 val = le16toh(val); 1903 if ((val & 0xff) != 0xff) 1904 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1905 1906 /* Only [-10, 10] is valid */ 1907 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1908 sc->rssi_2ghz_corr = 0; 1909 1910 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1911 val = le16toh(val); 1912 if ((val & 0xff) != 0xff) 1913 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1914 1915 /* Only [-10, 10] is valid */ 1916 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1917 sc->rssi_5ghz_corr = 0; 1918 1919 if (sc->ext_2ghz_lna) 1920 sc->rssi_2ghz_corr -= 14; 1921 if (sc->ext_5ghz_lna) 1922 sc->rssi_5ghz_corr -= 14; 1923 1924 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1925 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1926 1927 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1928 val = le16toh(val); 1929 if ((val & 0xff) != 0xff) 1930 sc->rffreq = val & 0xff; 1931 1932 DPRINTF("RF freq=%d\n", sc->rffreq); 1933 1934 /* read Tx power for all a/b/g channels */ 1935 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1936 /* XXX default Tx power for 802.11a channels */ 1937 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1938#ifdef RUM_DEBUG 1939 for (i = 0; i < 14; i++) 1940 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1941#endif 1942 1943 /* read default values for BBP registers */ 1944 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1945#ifdef RUM_DEBUG 1946 for (i = 0; i < 14; i++) { 1947 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1948 continue; 1949 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1950 sc->bbp_prom[i].val); 1951 } 1952#endif 1953} 1954 1955static int 1956rum_bbp_init(struct rum_softc *sc) 1957{ 1958 int i, ntries; 1959 1960 /* wait for BBP to be ready */ 1961 for (ntries = 0; ntries < 100; ntries++) { 1962 const uint8_t val = rum_bbp_read(sc, 0); 1963 if (val != 0 && val != 0xff) 1964 break; 1965 if (rum_pause(sc, hz / 100)) 1966 break; 1967 } 1968 if (ntries == 100) { 1969 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 1970 return EIO; 1971 } 1972 1973 /* initialize BBP registers to default values */ 1974 for (i = 0; i < N(rum_def_bbp); i++) 1975 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 1976 1977 /* write vendor-specific BBP values (from EEPROM) */ 1978 for (i = 0; i < 16; i++) { 1979 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1980 continue; 1981 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 1982 } 1983 1984 return 0; 1985} 1986 1987static void 1988rum_init_locked(struct rum_softc *sc) 1989{ 1990 struct ifnet *ifp = sc->sc_ifp; 1991 struct ieee80211com *ic = ifp->if_l2com; 1992 uint32_t tmp; 1993 usb_error_t error; 1994 int i, ntries; 1995 1996 RUM_LOCK_ASSERT(sc, MA_OWNED); 1997 1998 rum_stop(sc); 1999 2000 /* initialize MAC registers to default values */ 2001 for (i = 0; i < N(rum_def_mac); i++) 2002 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2003 2004 /* set host ready */ 2005 rum_write(sc, RT2573_MAC_CSR1, 3); 2006 rum_write(sc, RT2573_MAC_CSR1, 0); 2007 2008 /* wait for BBP/RF to wakeup */ 2009 for (ntries = 0; ntries < 100; ntries++) { 2010 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2011 break; 2012 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2013 if (rum_pause(sc, hz / 100)) 2014 break; 2015 } 2016 if (ntries == 100) { 2017 device_printf(sc->sc_dev, 2018 "timeout waiting for BBP/RF to wakeup\n"); 2019 goto fail; 2020 } 2021 2022 if ((error = rum_bbp_init(sc)) != 0) 2023 goto fail; 2024 2025 /* select default channel */ 2026 rum_select_band(sc, ic->ic_curchan); 2027 rum_select_antenna(sc); 2028 rum_set_chan(sc, ic->ic_curchan); 2029 2030 /* clear STA registers */ 2031 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2032 2033 rum_set_macaddr(sc, IF_LLADDR(ifp)); 2034 2035 /* initialize ASIC */ 2036 rum_write(sc, RT2573_MAC_CSR1, 4); 2037 2038 /* 2039 * Allocate Tx and Rx xfer queues. 2040 */ 2041 rum_setup_tx_list(sc); 2042 2043 /* update Rx filter */ 2044 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2045 2046 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2047 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2048 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2049 RT2573_DROP_ACKCTS; 2050 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2051 tmp |= RT2573_DROP_TODS; 2052 if (!(ifp->if_flags & IFF_PROMISC)) 2053 tmp |= RT2573_DROP_NOT_TO_ME; 2054 } 2055 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2056 2057 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2058 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2059 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2060 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2061 return; 2062 2063fail: rum_stop(sc); 2064#undef N 2065} 2066 2067static void 2068rum_init(void *priv) 2069{ 2070 struct rum_softc *sc = priv; 2071 struct ifnet *ifp = sc->sc_ifp; 2072 struct ieee80211com *ic = ifp->if_l2com; 2073 2074 RUM_LOCK(sc); 2075 rum_init_locked(sc); 2076 RUM_UNLOCK(sc); 2077 2078 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 2079 ieee80211_start_all(ic); /* start all vap's */ 2080} 2081 2082static void 2083rum_stop(struct rum_softc *sc) 2084{ 2085 struct ifnet *ifp = sc->sc_ifp; 2086 uint32_t tmp; 2087 2088 RUM_LOCK_ASSERT(sc, MA_OWNED); 2089 2090 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2091 2092 RUM_UNLOCK(sc); 2093 2094 /* 2095 * Drain the USB transfers, if not already drained: 2096 */ 2097 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2098 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2099 2100 RUM_LOCK(sc); 2101 2102 rum_unsetup_tx_list(sc); 2103 2104 /* disable Rx */ 2105 tmp = rum_read(sc, RT2573_TXRX_CSR0); 2106 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 2107 2108 /* reset ASIC */ 2109 rum_write(sc, RT2573_MAC_CSR1, 3); 2110 rum_write(sc, RT2573_MAC_CSR1, 0); 2111} 2112 2113static void 2114rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2115{ 2116 struct usb_device_request req; 2117 uint16_t reg = RT2573_MCU_CODE_BASE; 2118 usb_error_t err; 2119 2120 /* copy firmware image into NIC */ 2121 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2122 err = rum_write(sc, reg, UGETDW(ucode)); 2123 if (err) { 2124 /* firmware already loaded ? */ 2125 device_printf(sc->sc_dev, "Firmware load " 2126 "failure! (ignored)\n"); 2127 break; 2128 } 2129 } 2130 2131 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2132 req.bRequest = RT2573_MCU_CNTL; 2133 USETW(req.wValue, RT2573_MCU_RUN); 2134 USETW(req.wIndex, 0); 2135 USETW(req.wLength, 0); 2136 2137 err = rum_do_request(sc, &req, NULL); 2138 if (err != 0) { 2139 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2140 usbd_errstr(err)); 2141 } 2142 2143 /* give the chip some time to boot */ 2144 rum_pause(sc, hz / 8); 2145} 2146 2147static void 2148rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2149{ 2150 struct ieee80211com *ic = vap->iv_ic; 2151 const struct ieee80211_txparam *tp; 2152 struct rum_tx_desc desc; 2153 struct mbuf *m0; 2154 2155 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2156 return; 2157 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2158 return; 2159 2160 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2161 if (m0 == NULL) 2162 return; 2163 2164 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2165 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2166 m0->m_pkthdr.len, tp->mgmtrate); 2167 2168 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2169 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2170 2171 /* copy beacon header and payload into NIC memory */ 2172 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2173 m0->m_pkthdr.len); 2174 2175 m_freem(m0); 2176} 2177 2178static int 2179rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2180 const struct ieee80211_bpf_params *params) 2181{ 2182 struct ifnet *ifp = ni->ni_ic->ic_ifp; 2183 struct rum_softc *sc = ifp->if_softc; 2184 2185 RUM_LOCK(sc); 2186 /* prevent management frames from being sent if we're not ready */ 2187 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 2188 RUM_UNLOCK(sc); 2189 m_freem(m); 2190 ieee80211_free_node(ni); 2191 return ENETDOWN; 2192 } 2193 if (sc->tx_nfree < RUM_TX_MINFREE) { 2194 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2195 RUM_UNLOCK(sc); 2196 m_freem(m); 2197 ieee80211_free_node(ni); 2198 return EIO; 2199 } 2200 2201 ifp->if_opackets++; 2202 2203 if (params == NULL) { 2204 /* 2205 * Legacy path; interpret frame contents to decide 2206 * precisely how to send the frame. 2207 */ 2208 if (rum_tx_mgt(sc, m, ni) != 0) 2209 goto bad; 2210 } else { 2211 /* 2212 * Caller supplied explicit parameters to use in 2213 * sending the frame. 2214 */ 2215 if (rum_tx_raw(sc, m, ni, params) != 0) 2216 goto bad; 2217 } 2218 RUM_UNLOCK(sc); 2219 2220 return 0; 2221bad: 2222 ifp->if_oerrors++; 2223 RUM_UNLOCK(sc); 2224 ieee80211_free_node(ni); 2225 return EIO; 2226} 2227 2228static void 2229rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2230{ 2231 struct ieee80211vap *vap = ni->ni_vap; 2232 struct rum_vap *rvp = RUM_VAP(vap); 2233 2234 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2235 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2236 2237 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2238} 2239 2240static void 2241rum_ratectl_timeout(void *arg) 2242{ 2243 struct rum_vap *rvp = arg; 2244 struct ieee80211vap *vap = &rvp->vap; 2245 struct ieee80211com *ic = vap->iv_ic; 2246 2247 ieee80211_runtask(ic, &rvp->ratectl_task); 2248} 2249 2250static void 2251rum_ratectl_task(void *arg, int pending) 2252{ 2253 struct rum_vap *rvp = arg; 2254 struct ieee80211vap *vap = &rvp->vap; 2255 struct ieee80211com *ic = vap->iv_ic; 2256 struct ifnet *ifp = ic->ic_ifp; 2257 struct rum_softc *sc = ifp->if_softc; 2258 struct ieee80211_node *ni; 2259 int ok, fail; 2260 int sum, retrycnt; 2261 2262 RUM_LOCK(sc); 2263 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2264 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2265 2266 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2267 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2268 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2269 sum = ok+fail; 2270 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2271 2272 ni = ieee80211_ref_node(vap->iv_bss); 2273 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2274 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2275 ieee80211_free_node(ni); 2276 2277 ifp->if_oerrors += fail; /* count TX retry-fail as Tx errors */ 2278 2279 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2280 RUM_UNLOCK(sc); 2281} 2282 2283static void 2284rum_scan_start(struct ieee80211com *ic) 2285{ 2286 struct ifnet *ifp = ic->ic_ifp; 2287 struct rum_softc *sc = ifp->if_softc; 2288 uint32_t tmp; 2289 2290 RUM_LOCK(sc); 2291 /* abort TSF synchronization */ 2292 tmp = rum_read(sc, RT2573_TXRX_CSR9); 2293 rum_write(sc, RT2573_TXRX_CSR9, tmp & ~0x00ffffff); 2294 rum_set_bssid(sc, ifp->if_broadcastaddr); 2295 RUM_UNLOCK(sc); 2296 2297} 2298 2299static void 2300rum_scan_end(struct ieee80211com *ic) 2301{ 2302 struct rum_softc *sc = ic->ic_ifp->if_softc; 2303 2304 RUM_LOCK(sc); 2305 rum_enable_tsf_sync(sc); 2306 rum_set_bssid(sc, sc->sc_bssid); 2307 RUM_UNLOCK(sc); 2308 2309} 2310 2311static void 2312rum_set_channel(struct ieee80211com *ic) 2313{ 2314 struct rum_softc *sc = ic->ic_ifp->if_softc; 2315 2316 RUM_LOCK(sc); 2317 rum_set_chan(sc, ic->ic_curchan); 2318 RUM_UNLOCK(sc); 2319} 2320 2321static int 2322rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2323{ 2324 struct ifnet *ifp = sc->sc_ifp; 2325 struct ieee80211com *ic = ifp->if_l2com; 2326 int lna, agc, rssi; 2327 2328 lna = (raw >> 5) & 0x3; 2329 agc = raw & 0x1f; 2330 2331 if (lna == 0) { 2332 /* 2333 * No RSSI mapping 2334 * 2335 * NB: Since RSSI is relative to noise floor, -1 is 2336 * adequate for caller to know error happened. 2337 */ 2338 return -1; 2339 } 2340 2341 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2342 2343 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2344 rssi += sc->rssi_2ghz_corr; 2345 2346 if (lna == 1) 2347 rssi -= 64; 2348 else if (lna == 2) 2349 rssi -= 74; 2350 else if (lna == 3) 2351 rssi -= 90; 2352 } else { 2353 rssi += sc->rssi_5ghz_corr; 2354 2355 if (!sc->ext_5ghz_lna && lna != 1) 2356 rssi += 4; 2357 2358 if (lna == 1) 2359 rssi -= 64; 2360 else if (lna == 2) 2361 rssi -= 86; 2362 else if (lna == 3) 2363 rssi -= 100; 2364 } 2365 return rssi; 2366} 2367 2368static int 2369rum_pause(struct rum_softc *sc, int timeout) 2370{ 2371 2372 usb_pause_mtx(&sc->sc_mtx, timeout); 2373 return (0); 2374} 2375 2376static device_method_t rum_methods[] = { 2377 /* Device interface */ 2378 DEVMETHOD(device_probe, rum_match), 2379 DEVMETHOD(device_attach, rum_attach), 2380 DEVMETHOD(device_detach, rum_detach), 2381 DEVMETHOD_END 2382}; 2383 2384static driver_t rum_driver = { 2385 .name = "rum", 2386 .methods = rum_methods, 2387 .size = sizeof(struct rum_softc), 2388}; 2389 2390static devclass_t rum_devclass; 2391 2392DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2393MODULE_DEPEND(rum, wlan, 1, 1, 1); 2394MODULE_DEPEND(rum, usb, 1, 1, 1); 2395MODULE_VERSION(rum, 1); 2396