if_rum.c revision 288532
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288532 2015-10-03 05:46:35Z 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 288532 2015-10-03 05:46:35Z 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_cmdq_cb(void *, int); 162static int rum_cmd_sleepable(struct rum_softc *, const void *, 163 size_t, uint8_t, uint8_t, CMD_FUNC_PROTO); 164static void rum_tx_free(struct rum_tx_data *, int); 165static void rum_setup_tx_list(struct rum_softc *); 166static void rum_unsetup_tx_list(struct rum_softc *); 167static int rum_newstate(struct ieee80211vap *, 168 enum ieee80211_state, int); 169static void rum_setup_tx_desc(struct rum_softc *, 170 struct rum_tx_desc *, uint32_t, uint16_t, int, 171 int); 172static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 173 struct ieee80211_node *); 174static int rum_tx_raw(struct rum_softc *, struct mbuf *, 175 struct ieee80211_node *, 176 const struct ieee80211_bpf_params *); 177static int rum_tx_data(struct rum_softc *, struct mbuf *, 178 struct ieee80211_node *); 179static int rum_transmit(struct ieee80211com *, struct mbuf *); 180static void rum_start(struct rum_softc *); 181static void rum_parent(struct ieee80211com *); 182static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 183 int); 184static uint32_t rum_read(struct rum_softc *, uint16_t); 185static void rum_read_multi(struct rum_softc *, uint16_t, void *, 186 int); 187static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 188static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 189 size_t); 190static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 191static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 192static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 193 uint32_t); 194static int rum_bbp_busy(struct rum_softc *); 195static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 196static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 197static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 198static void rum_select_antenna(struct rum_softc *); 199static void rum_enable_mrr(struct rum_softc *); 200static void rum_set_txpreamble(struct rum_softc *); 201static void rum_set_basicrates(struct rum_softc *); 202static void rum_select_band(struct rum_softc *, 203 struct ieee80211_channel *); 204static void rum_set_chan(struct rum_softc *, 205 struct ieee80211_channel *); 206static void rum_enable_tsf_sync(struct rum_softc *); 207static void rum_enable_tsf(struct rum_softc *); 208static void rum_abort_tsf_sync(struct rum_softc *); 209static void rum_update_slot(struct rum_softc *); 210static void rum_set_bssid(struct rum_softc *, const uint8_t *); 211static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 212static void rum_update_mcast(struct ieee80211com *); 213static void rum_update_promisc(struct ieee80211com *); 214static void rum_setpromisc(struct rum_softc *); 215static const char *rum_get_rf(int); 216static void rum_read_eeprom(struct rum_softc *); 217static int rum_bbp_init(struct rum_softc *); 218static void rum_init(struct rum_softc *); 219static void rum_stop(struct rum_softc *); 220static void rum_load_microcode(struct rum_softc *, const uint8_t *, 221 size_t); 222static void rum_prepare_beacon(struct rum_softc *, 223 struct ieee80211vap *); 224static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 225 const struct ieee80211_bpf_params *); 226static void rum_scan_start(struct ieee80211com *); 227static void rum_scan_end(struct ieee80211com *); 228static void rum_set_channel(struct ieee80211com *); 229static int rum_get_rssi(struct rum_softc *, uint8_t); 230static void rum_ratectl_start(struct rum_softc *, 231 struct ieee80211_node *); 232static void rum_ratectl_timeout(void *); 233static void rum_ratectl_task(void *, int); 234static int rum_pause(struct rum_softc *, int); 235 236static const struct { 237 uint32_t reg; 238 uint32_t val; 239} rum_def_mac[] = { 240 { RT2573_TXRX_CSR0, 0x025fb032 }, 241 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 242 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 243 { RT2573_TXRX_CSR3, 0x00858687 }, 244 { RT2573_TXRX_CSR7, 0x2e31353b }, 245 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 246 { RT2573_TXRX_CSR15, 0x0000000f }, 247 { RT2573_MAC_CSR6, 0x00000fff }, 248 { RT2573_MAC_CSR8, 0x016c030a }, 249 { RT2573_MAC_CSR10, 0x00000718 }, 250 { RT2573_MAC_CSR12, 0x00000004 }, 251 { RT2573_MAC_CSR13, 0x00007f00 }, 252 { RT2573_SEC_CSR0, 0x00000000 }, 253 { RT2573_SEC_CSR1, 0x00000000 }, 254 { RT2573_SEC_CSR5, 0x00000000 }, 255 { RT2573_PHY_CSR1, 0x000023b0 }, 256 { RT2573_PHY_CSR5, 0x00040a06 }, 257 { RT2573_PHY_CSR6, 0x00080606 }, 258 { RT2573_PHY_CSR7, 0x00000408 }, 259 { RT2573_AIFSN_CSR, 0x00002273 }, 260 { RT2573_CWMIN_CSR, 0x00002344 }, 261 { RT2573_CWMAX_CSR, 0x000034aa } 262}; 263 264static const struct { 265 uint8_t reg; 266 uint8_t val; 267} rum_def_bbp[] = { 268 { 3, 0x80 }, 269 { 15, 0x30 }, 270 { 17, 0x20 }, 271 { 21, 0xc8 }, 272 { 22, 0x38 }, 273 { 23, 0x06 }, 274 { 24, 0xfe }, 275 { 25, 0x0a }, 276 { 26, 0x0d }, 277 { 32, 0x0b }, 278 { 34, 0x12 }, 279 { 37, 0x07 }, 280 { 39, 0xf8 }, 281 { 41, 0x60 }, 282 { 53, 0x10 }, 283 { 54, 0x18 }, 284 { 60, 0x10 }, 285 { 61, 0x04 }, 286 { 62, 0x04 }, 287 { 75, 0xfe }, 288 { 86, 0xfe }, 289 { 88, 0xfe }, 290 { 90, 0x0f }, 291 { 99, 0x00 }, 292 { 102, 0x16 }, 293 { 107, 0x04 } 294}; 295 296static const struct rfprog { 297 uint8_t chan; 298 uint32_t r1, r2, r3, r4; 299} rum_rf5226[] = { 300 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 301 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 302 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 303 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 304 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 305 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 306 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 307 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 308 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 309 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 310 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 311 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 312 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 313 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 314 315 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 316 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 317 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 318 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 319 320 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 321 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 322 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 323 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 324 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 325 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 326 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 327 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 328 329 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 330 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 331 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 332 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 333 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 334 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 335 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 336 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 337 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 338 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 339 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 340 341 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 342 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 343 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 344 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 345 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 346}, rum_rf5225[] = { 347 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 348 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 349 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 350 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 351 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 352 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 353 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 354 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 355 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 356 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 357 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 358 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 359 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 360 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 361 362 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 363 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 364 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 365 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 366 367 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 368 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 369 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 370 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 371 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 372 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 373 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 374 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 375 376 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 377 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 378 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 379 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 380 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 381 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 382 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 383 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 384 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 385 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 386 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 387 388 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 389 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 390 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 391 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 392 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 393}; 394 395static const struct usb_config rum_config[RUM_N_TRANSFER] = { 396 [RUM_BULK_WR] = { 397 .type = UE_BULK, 398 .endpoint = UE_ADDR_ANY, 399 .direction = UE_DIR_OUT, 400 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 401 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 402 .callback = rum_bulk_write_callback, 403 .timeout = 5000, /* ms */ 404 }, 405 [RUM_BULK_RD] = { 406 .type = UE_BULK, 407 .endpoint = UE_ADDR_ANY, 408 .direction = UE_DIR_IN, 409 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 410 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 411 .callback = rum_bulk_read_callback, 412 }, 413}; 414 415static int 416rum_match(device_t self) 417{ 418 struct usb_attach_arg *uaa = device_get_ivars(self); 419 420 if (uaa->usb_mode != USB_MODE_HOST) 421 return (ENXIO); 422 if (uaa->info.bConfigIndex != 0) 423 return (ENXIO); 424 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 425 return (ENXIO); 426 427 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 428} 429 430static int 431rum_attach(device_t self) 432{ 433 struct usb_attach_arg *uaa = device_get_ivars(self); 434 struct rum_softc *sc = device_get_softc(self); 435 struct ieee80211com *ic = &sc->sc_ic; 436 uint8_t iface_index, bands; 437 uint32_t tmp; 438 int error, ntries; 439 440 device_set_usb_desc(self); 441 sc->sc_udev = uaa->device; 442 sc->sc_dev = self; 443 444 RUM_LOCK_INIT(sc); 445 RUM_CMDQ_LOCK_INIT(sc); 446 mbufq_init(&sc->sc_snd, ifqmaxlen); 447 448 iface_index = RT2573_IFACE_INDEX; 449 error = usbd_transfer_setup(uaa->device, &iface_index, 450 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 451 if (error) { 452 device_printf(self, "could not allocate USB transfers, " 453 "err=%s\n", usbd_errstr(error)); 454 goto detach; 455 } 456 457 RUM_LOCK(sc); 458 /* retrieve RT2573 rev. no */ 459 for (ntries = 0; ntries < 100; ntries++) { 460 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 461 break; 462 if (rum_pause(sc, hz / 100)) 463 break; 464 } 465 if (ntries == 100) { 466 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 467 RUM_UNLOCK(sc); 468 goto detach; 469 } 470 471 /* retrieve MAC address and various other things from EEPROM */ 472 rum_read_eeprom(sc); 473 474 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 475 tmp, rum_get_rf(sc->rf_rev)); 476 477 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 478 RUM_UNLOCK(sc); 479 480 ic->ic_softc = sc; 481 ic->ic_name = device_get_nameunit(self); 482 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 483 484 /* set device capabilities */ 485 ic->ic_caps = 486 IEEE80211_C_STA /* station mode supported */ 487 | IEEE80211_C_IBSS /* IBSS mode supported */ 488 | IEEE80211_C_MONITOR /* monitor mode supported */ 489 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 490 | IEEE80211_C_TXPMGT /* tx power management */ 491 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 492 | IEEE80211_C_SHSLOT /* short slot time supported */ 493 | IEEE80211_C_BGSCAN /* bg scanning supported */ 494 | IEEE80211_C_WPA /* 802.11i */ 495 ; 496 497 bands = 0; 498 setbit(&bands, IEEE80211_MODE_11B); 499 setbit(&bands, IEEE80211_MODE_11G); 500 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 501 setbit(&bands, IEEE80211_MODE_11A); 502 ieee80211_init_channels(ic, NULL, &bands); 503 504 ieee80211_ifattach(ic); 505 ic->ic_update_promisc = rum_update_promisc; 506 ic->ic_raw_xmit = rum_raw_xmit; 507 ic->ic_scan_start = rum_scan_start; 508 ic->ic_scan_end = rum_scan_end; 509 ic->ic_set_channel = rum_set_channel; 510 ic->ic_transmit = rum_transmit; 511 ic->ic_parent = rum_parent; 512 ic->ic_vap_create = rum_vap_create; 513 ic->ic_vap_delete = rum_vap_delete; 514 ic->ic_update_mcast = rum_update_mcast; 515 516 ieee80211_radiotap_attach(ic, 517 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 518 RT2573_TX_RADIOTAP_PRESENT, 519 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 520 RT2573_RX_RADIOTAP_PRESENT); 521 522 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 523 524 if (bootverbose) 525 ieee80211_announce(ic); 526 527 return (0); 528 529detach: 530 rum_detach(self); 531 return (ENXIO); /* failure */ 532} 533 534static int 535rum_detach(device_t self) 536{ 537 struct rum_softc *sc = device_get_softc(self); 538 struct ieee80211com *ic = &sc->sc_ic; 539 540 /* Prevent further ioctls */ 541 RUM_LOCK(sc); 542 sc->sc_detached = 1; 543 RUM_UNLOCK(sc); 544 545 /* stop all USB transfers */ 546 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 547 548 /* free TX list, if any */ 549 RUM_LOCK(sc); 550 rum_unsetup_tx_list(sc); 551 RUM_UNLOCK(sc); 552 553 if (ic->ic_softc == sc) { 554 ieee80211_draintask(ic, &sc->cmdq_task); 555 ieee80211_ifdetach(ic); 556 } 557 558 mbufq_drain(&sc->sc_snd); 559 RUM_CMDQ_LOCK_DESTROY(sc); 560 RUM_LOCK_DESTROY(sc); 561 562 return (0); 563} 564 565static usb_error_t 566rum_do_request(struct rum_softc *sc, 567 struct usb_device_request *req, void *data) 568{ 569 usb_error_t err; 570 int ntries = 10; 571 572 while (ntries--) { 573 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 574 req, data, 0, NULL, 250 /* ms */); 575 if (err == 0) 576 break; 577 578 DPRINTFN(1, "Control request failed, %s (retrying)\n", 579 usbd_errstr(err)); 580 if (rum_pause(sc, hz / 100)) 581 break; 582 } 583 return (err); 584} 585 586static struct ieee80211vap * 587rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 588 enum ieee80211_opmode opmode, int flags, 589 const uint8_t bssid[IEEE80211_ADDR_LEN], 590 const uint8_t mac[IEEE80211_ADDR_LEN]) 591{ 592 struct rum_softc *sc = ic->ic_softc; 593 struct rum_vap *rvp; 594 struct ieee80211vap *vap; 595 596 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 597 return NULL; 598 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 599 vap = &rvp->vap; 600 /* enable s/w bmiss handling for sta mode */ 601 602 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 603 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 604 /* out of memory */ 605 free(rvp, M_80211_VAP); 606 return (NULL); 607 } 608 609 /* override state transition machine */ 610 rvp->newstate = vap->iv_newstate; 611 vap->iv_newstate = rum_newstate; 612 613 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 614 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 615 ieee80211_ratectl_init(vap); 616 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 617 /* complete setup */ 618 ieee80211_vap_attach(vap, ieee80211_media_change, 619 ieee80211_media_status, mac); 620 ic->ic_opmode = opmode; 621 return vap; 622} 623 624static void 625rum_vap_delete(struct ieee80211vap *vap) 626{ 627 struct rum_vap *rvp = RUM_VAP(vap); 628 struct ieee80211com *ic = vap->iv_ic; 629 630 usb_callout_drain(&rvp->ratectl_ch); 631 ieee80211_draintask(ic, &rvp->ratectl_task); 632 ieee80211_ratectl_deinit(vap); 633 ieee80211_vap_detach(vap); 634 free(rvp, M_80211_VAP); 635} 636 637static void 638rum_cmdq_cb(void *arg, int pending) 639{ 640 struct rum_softc *sc = arg; 641 struct rum_cmdq *rc; 642 643 RUM_CMDQ_LOCK(sc); 644 while (sc->cmdq[sc->cmdq_first].func != NULL) { 645 rc = &sc->cmdq[sc->cmdq_first]; 646 RUM_CMDQ_UNLOCK(sc); 647 648 RUM_LOCK(sc); 649 rc->func(sc, &rc->data, rc->rn_id, rc->rvp_id); 650 RUM_UNLOCK(sc); 651 652 RUM_CMDQ_LOCK(sc); 653 memset(rc, 0, sizeof (*rc)); 654 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 655 } 656 RUM_CMDQ_UNLOCK(sc); 657} 658 659static int 660rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 661 uint8_t rn_id, uint8_t rvp_id, CMD_FUNC_PROTO) 662{ 663 struct ieee80211com *ic = &sc->sc_ic; 664 665 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 666 667 RUM_CMDQ_LOCK(sc); 668 if (sc->cmdq[sc->cmdq_last].func != NULL) { 669 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 670 RUM_CMDQ_UNLOCK(sc); 671 672 return EAGAIN; 673 } 674 675 if (ptr != NULL) 676 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 677 sc->cmdq[sc->cmdq_last].rn_id = rn_id; 678 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 679 sc->cmdq[sc->cmdq_last].func = func; 680 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 681 RUM_CMDQ_UNLOCK(sc); 682 683 ieee80211_runtask(ic, &sc->cmdq_task); 684 685 return 0; 686} 687 688static void 689rum_tx_free(struct rum_tx_data *data, int txerr) 690{ 691 struct rum_softc *sc = data->sc; 692 693 if (data->m != NULL) { 694 ieee80211_tx_complete(data->ni, data->m, txerr); 695 data->m = NULL; 696 data->ni = NULL; 697 } 698 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 699 sc->tx_nfree++; 700} 701 702static void 703rum_setup_tx_list(struct rum_softc *sc) 704{ 705 struct rum_tx_data *data; 706 int i; 707 708 sc->tx_nfree = 0; 709 STAILQ_INIT(&sc->tx_q); 710 STAILQ_INIT(&sc->tx_free); 711 712 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 713 data = &sc->tx_data[i]; 714 715 data->sc = sc; 716 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 717 sc->tx_nfree++; 718 } 719} 720 721static void 722rum_unsetup_tx_list(struct rum_softc *sc) 723{ 724 struct rum_tx_data *data; 725 int i; 726 727 /* make sure any subsequent use of the queues will fail */ 728 sc->tx_nfree = 0; 729 STAILQ_INIT(&sc->tx_q); 730 STAILQ_INIT(&sc->tx_free); 731 732 /* free up all node references and mbufs */ 733 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 734 data = &sc->tx_data[i]; 735 736 if (data->m != NULL) { 737 m_freem(data->m); 738 data->m = NULL; 739 } 740 if (data->ni != NULL) { 741 ieee80211_free_node(data->ni); 742 data->ni = NULL; 743 } 744 } 745} 746 747static int 748rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 749{ 750 struct rum_vap *rvp = RUM_VAP(vap); 751 struct ieee80211com *ic = vap->iv_ic; 752 struct rum_softc *sc = ic->ic_softc; 753 const struct ieee80211_txparam *tp; 754 enum ieee80211_state ostate; 755 struct ieee80211_node *ni; 756 757 ostate = vap->iv_state; 758 DPRINTF("%s -> %s\n", 759 ieee80211_state_name[ostate], 760 ieee80211_state_name[nstate]); 761 762 IEEE80211_UNLOCK(ic); 763 RUM_LOCK(sc); 764 usb_callout_stop(&rvp->ratectl_ch); 765 766 switch (nstate) { 767 case IEEE80211_S_INIT: 768 if (ostate == IEEE80211_S_RUN) 769 rum_abort_tsf_sync(sc); 770 771 break; 772 773 case IEEE80211_S_RUN: 774 ni = ieee80211_ref_node(vap->iv_bss); 775 776 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 777 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 778 RUM_UNLOCK(sc); 779 IEEE80211_LOCK(ic); 780 ieee80211_free_node(ni); 781 return (-1); 782 } 783 rum_update_slot(sc); 784 rum_enable_mrr(sc); 785 rum_set_txpreamble(sc); 786 rum_set_basicrates(sc); 787 IEEE80211_ADDR_COPY(ic->ic_macaddr, ni->ni_bssid); 788 rum_set_bssid(sc, ic->ic_macaddr); 789 } 790 791 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 792 vap->iv_opmode == IEEE80211_M_IBSS) 793 rum_prepare_beacon(sc, vap); 794 795 if (vap->iv_opmode != IEEE80211_M_MONITOR) 796 rum_enable_tsf_sync(sc); 797 else 798 rum_enable_tsf(sc); 799 800 /* enable automatic rate adaptation */ 801 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 802 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 803 rum_ratectl_start(sc, ni); 804 ieee80211_free_node(ni); 805 break; 806 default: 807 break; 808 } 809 RUM_UNLOCK(sc); 810 IEEE80211_LOCK(ic); 811 return (rvp->newstate(vap, nstate, arg)); 812} 813 814static void 815rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 816{ 817 struct rum_softc *sc = usbd_xfer_softc(xfer); 818 struct ieee80211vap *vap; 819 struct rum_tx_data *data; 820 struct mbuf *m; 821 struct usb_page_cache *pc; 822 unsigned int len; 823 int actlen, sumlen; 824 825 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 826 827 switch (USB_GET_STATE(xfer)) { 828 case USB_ST_TRANSFERRED: 829 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 830 831 /* free resources */ 832 data = usbd_xfer_get_priv(xfer); 833 rum_tx_free(data, 0); 834 usbd_xfer_set_priv(xfer, NULL); 835 836 /* FALLTHROUGH */ 837 case USB_ST_SETUP: 838tr_setup: 839 data = STAILQ_FIRST(&sc->tx_q); 840 if (data) { 841 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 842 m = data->m; 843 844 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 845 DPRINTFN(0, "data overflow, %u bytes\n", 846 m->m_pkthdr.len); 847 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 848 } 849 pc = usbd_xfer_get_frame(xfer, 0); 850 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 851 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 852 m->m_pkthdr.len); 853 854 vap = data->ni->ni_vap; 855 if (ieee80211_radiotap_active_vap(vap)) { 856 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 857 858 tap->wt_flags = 0; 859 tap->wt_rate = data->rate; 860 tap->wt_antenna = sc->tx_ant; 861 862 ieee80211_radiotap_tx(vap, m); 863 } 864 865 /* align end on a 4-bytes boundary */ 866 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 867 if ((len % 64) == 0) 868 len += 4; 869 870 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 871 m->m_pkthdr.len, len); 872 873 usbd_xfer_set_frame_len(xfer, 0, len); 874 usbd_xfer_set_priv(xfer, data); 875 876 usbd_transfer_submit(xfer); 877 } 878 rum_start(sc); 879 break; 880 881 default: /* Error */ 882 DPRINTFN(11, "transfer error, %s\n", 883 usbd_errstr(error)); 884 885 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 886 data = usbd_xfer_get_priv(xfer); 887 if (data != NULL) { 888 rum_tx_free(data, error); 889 usbd_xfer_set_priv(xfer, NULL); 890 } 891 892 if (error != USB_ERR_CANCELLED) { 893 if (error == USB_ERR_TIMEOUT) 894 device_printf(sc->sc_dev, "device timeout\n"); 895 896 /* 897 * Try to clear stall first, also if other 898 * errors occur, hence clearing stall 899 * introduces a 50 ms delay: 900 */ 901 usbd_xfer_set_stall(xfer); 902 goto tr_setup; 903 } 904 break; 905 } 906} 907 908static void 909rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 910{ 911 struct rum_softc *sc = usbd_xfer_softc(xfer); 912 struct ieee80211com *ic = &sc->sc_ic; 913 struct ieee80211_node *ni; 914 struct mbuf *m = NULL; 915 struct usb_page_cache *pc; 916 uint32_t flags; 917 uint8_t rssi = 0; 918 int len; 919 920 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 921 922 switch (USB_GET_STATE(xfer)) { 923 case USB_ST_TRANSFERRED: 924 925 DPRINTFN(15, "rx done, actlen=%d\n", len); 926 927 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 928 DPRINTF("%s: xfer too short %d\n", 929 device_get_nameunit(sc->sc_dev), len); 930 counter_u64_add(ic->ic_ierrors, 1); 931 goto tr_setup; 932 } 933 934 len -= RT2573_RX_DESC_SIZE; 935 pc = usbd_xfer_get_frame(xfer, 0); 936 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 937 938 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 939 flags = le32toh(sc->sc_rx_desc.flags); 940 if (flags & RT2573_RX_CRC_ERROR) { 941 /* 942 * This should not happen since we did not 943 * request to receive those frames when we 944 * filled RUM_TXRX_CSR2: 945 */ 946 DPRINTFN(5, "PHY or CRC error\n"); 947 counter_u64_add(ic->ic_ierrors, 1); 948 goto tr_setup; 949 } 950 951 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 952 if (m == NULL) { 953 DPRINTF("could not allocate mbuf\n"); 954 counter_u64_add(ic->ic_ierrors, 1); 955 goto tr_setup; 956 } 957 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 958 mtod(m, uint8_t *), len); 959 960 /* finalize mbuf */ 961 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 962 963 if (ieee80211_radiotap_active(ic)) { 964 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 965 966 /* XXX read tsf */ 967 tap->wr_flags = 0; 968 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 969 (flags & RT2573_RX_OFDM) ? 970 IEEE80211_T_OFDM : IEEE80211_T_CCK); 971 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 972 tap->wr_antnoise = RT2573_NOISE_FLOOR; 973 tap->wr_antenna = sc->rx_ant; 974 } 975 /* FALLTHROUGH */ 976 case USB_ST_SETUP: 977tr_setup: 978 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 979 usbd_transfer_submit(xfer); 980 981 /* 982 * At the end of a USB callback it is always safe to unlock 983 * the private mutex of a device! That is why we do the 984 * "ieee80211_input" here, and not some lines up! 985 */ 986 RUM_UNLOCK(sc); 987 if (m) { 988 ni = ieee80211_find_rxnode(ic, 989 mtod(m, struct ieee80211_frame_min *)); 990 if (ni != NULL) { 991 (void) ieee80211_input(ni, m, rssi, 992 RT2573_NOISE_FLOOR); 993 ieee80211_free_node(ni); 994 } else 995 (void) ieee80211_input_all(ic, m, rssi, 996 RT2573_NOISE_FLOOR); 997 } 998 RUM_LOCK(sc); 999 rum_start(sc); 1000 return; 1001 1002 default: /* Error */ 1003 if (error != USB_ERR_CANCELLED) { 1004 /* try to clear stall first */ 1005 usbd_xfer_set_stall(xfer); 1006 goto tr_setup; 1007 } 1008 return; 1009 } 1010} 1011 1012static uint8_t 1013rum_plcp_signal(int rate) 1014{ 1015 switch (rate) { 1016 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1017 case 12: return 0xb; 1018 case 18: return 0xf; 1019 case 24: return 0xa; 1020 case 36: return 0xe; 1021 case 48: return 0x9; 1022 case 72: return 0xd; 1023 case 96: return 0x8; 1024 case 108: return 0xc; 1025 1026 /* CCK rates (NB: not IEEE std, device-specific) */ 1027 case 2: return 0x0; 1028 case 4: return 0x1; 1029 case 11: return 0x2; 1030 case 22: return 0x3; 1031 } 1032 return 0xff; /* XXX unsupported/unknown rate */ 1033} 1034 1035static void 1036rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1037 uint32_t flags, uint16_t xflags, int len, int rate) 1038{ 1039 struct ieee80211com *ic = &sc->sc_ic; 1040 uint16_t plcp_length; 1041 int remainder; 1042 1043 desc->flags = htole32(flags); 1044 desc->flags |= htole32(RT2573_TX_VALID); 1045 desc->flags |= htole32(len << 16); 1046 1047 desc->xflags = htole16(xflags); 1048 1049 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1050 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1051 1052 /* setup PLCP fields */ 1053 desc->plcp_signal = rum_plcp_signal(rate); 1054 desc->plcp_service = 4; 1055 1056 len += IEEE80211_CRC_LEN; 1057 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1058 desc->flags |= htole32(RT2573_TX_OFDM); 1059 1060 plcp_length = len & 0xfff; 1061 desc->plcp_length_hi = plcp_length >> 6; 1062 desc->plcp_length_lo = plcp_length & 0x3f; 1063 } else { 1064 if (rate == 0) 1065 rate = 2; /* avoid division by zero */ 1066 plcp_length = (16 * len + rate - 1) / rate; 1067 if (rate == 22) { 1068 remainder = (16 * len) % 22; 1069 if (remainder != 0 && remainder < 7) 1070 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1071 } 1072 desc->plcp_length_hi = plcp_length >> 8; 1073 desc->plcp_length_lo = plcp_length & 0xff; 1074 1075 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1076 desc->plcp_signal |= 0x08; 1077 } 1078} 1079 1080static int 1081rum_sendprot(struct rum_softc *sc, 1082 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1083{ 1084 struct ieee80211com *ic = ni->ni_ic; 1085 const struct ieee80211_frame *wh; 1086 struct rum_tx_data *data; 1087 struct mbuf *mprot; 1088 int protrate, pktlen, flags, isshort; 1089 uint16_t dur; 1090 1091 RUM_LOCK_ASSERT(sc); 1092 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1093 ("protection %d", prot)); 1094 1095 wh = mtod(m, const struct ieee80211_frame *); 1096 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1097 1098 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1099 1100 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1101 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1102 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1103 flags = RT2573_TX_MORE_FRAG; 1104 if (prot == IEEE80211_PROT_RTSCTS) { 1105 /* NB: CTS is the same size as an ACK */ 1106 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1107 flags |= RT2573_TX_NEED_ACK; 1108 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1109 } else { 1110 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1111 } 1112 if (mprot == NULL) { 1113 /* XXX stat + msg */ 1114 return (ENOBUFS); 1115 } 1116 data = STAILQ_FIRST(&sc->tx_free); 1117 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1118 sc->tx_nfree--; 1119 1120 data->m = mprot; 1121 data->ni = ieee80211_ref_node(ni); 1122 data->rate = protrate; 1123 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1124 1125 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1126 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1127 1128 return 0; 1129} 1130 1131static int 1132rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1133{ 1134 struct ieee80211vap *vap = ni->ni_vap; 1135 struct ieee80211com *ic = &sc->sc_ic; 1136 struct rum_tx_data *data; 1137 struct ieee80211_frame *wh; 1138 const struct ieee80211_txparam *tp; 1139 struct ieee80211_key *k; 1140 uint32_t flags = 0; 1141 uint16_t dur; 1142 1143 RUM_LOCK_ASSERT(sc); 1144 1145 data = STAILQ_FIRST(&sc->tx_free); 1146 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1147 sc->tx_nfree--; 1148 1149 wh = mtod(m0, struct ieee80211_frame *); 1150 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1151 k = ieee80211_crypto_encap(ni, m0); 1152 if (k == NULL) { 1153 m_freem(m0); 1154 return ENOBUFS; 1155 } 1156 wh = mtod(m0, struct ieee80211_frame *); 1157 } 1158 1159 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1160 1161 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1162 flags |= RT2573_TX_NEED_ACK; 1163 1164 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1165 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1166 USETW(wh->i_dur, dur); 1167 1168 /* tell hardware to add timestamp for probe responses */ 1169 if ((wh->i_fc[0] & 1170 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1171 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1172 flags |= RT2573_TX_TIMESTAMP; 1173 } 1174 1175 data->m = m0; 1176 data->ni = ni; 1177 data->rate = tp->mgmtrate; 1178 1179 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1180 1181 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1182 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1183 1184 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1185 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1186 1187 return (0); 1188} 1189 1190static int 1191rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1192 const struct ieee80211_bpf_params *params) 1193{ 1194 struct ieee80211com *ic = ni->ni_ic; 1195 struct rum_tx_data *data; 1196 uint32_t flags; 1197 int rate, error; 1198 1199 RUM_LOCK_ASSERT(sc); 1200 KASSERT(params != NULL, ("no raw xmit params")); 1201 1202 rate = params->ibp_rate0; 1203 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 1204 m_freem(m0); 1205 return EINVAL; 1206 } 1207 flags = 0; 1208 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1209 flags |= RT2573_TX_NEED_ACK; 1210 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1211 error = rum_sendprot(sc, m0, ni, 1212 params->ibp_flags & IEEE80211_BPF_RTS ? 1213 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1214 rate); 1215 if (error || sc->tx_nfree == 0) { 1216 m_freem(m0); 1217 return ENOBUFS; 1218 } 1219 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1220 } 1221 1222 data = STAILQ_FIRST(&sc->tx_free); 1223 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1224 sc->tx_nfree--; 1225 1226 data->m = m0; 1227 data->ni = ni; 1228 data->rate = rate; 1229 1230 /* XXX need to setup descriptor ourself */ 1231 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1232 1233 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1234 m0->m_pkthdr.len, rate); 1235 1236 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1237 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1238 1239 return 0; 1240} 1241 1242static int 1243rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1244{ 1245 struct ieee80211vap *vap = ni->ni_vap; 1246 struct ieee80211com *ic = &sc->sc_ic; 1247 struct rum_tx_data *data; 1248 struct ieee80211_frame *wh; 1249 const struct ieee80211_txparam *tp; 1250 struct ieee80211_key *k; 1251 uint32_t flags = 0; 1252 uint16_t dur; 1253 int error, rate; 1254 1255 RUM_LOCK_ASSERT(sc); 1256 1257 wh = mtod(m0, struct ieee80211_frame *); 1258 1259 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1260 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1261 rate = tp->mcastrate; 1262 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1263 rate = tp->ucastrate; 1264 else 1265 rate = ni->ni_txrate; 1266 1267 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1268 k = ieee80211_crypto_encap(ni, m0); 1269 if (k == NULL) { 1270 m_freem(m0); 1271 return ENOBUFS; 1272 } 1273 1274 /* packet header may have moved, reset our local pointer */ 1275 wh = mtod(m0, struct ieee80211_frame *); 1276 } 1277 1278 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1279 int prot = IEEE80211_PROT_NONE; 1280 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1281 prot = IEEE80211_PROT_RTSCTS; 1282 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1283 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1284 prot = ic->ic_protmode; 1285 if (prot != IEEE80211_PROT_NONE) { 1286 error = rum_sendprot(sc, m0, ni, prot, rate); 1287 if (error || sc->tx_nfree == 0) { 1288 m_freem(m0); 1289 return ENOBUFS; 1290 } 1291 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1292 } 1293 } 1294 1295 data = STAILQ_FIRST(&sc->tx_free); 1296 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1297 sc->tx_nfree--; 1298 1299 data->m = m0; 1300 data->ni = ni; 1301 data->rate = rate; 1302 1303 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1304 flags |= RT2573_TX_NEED_ACK; 1305 flags |= RT2573_TX_MORE_FRAG; 1306 1307 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1308 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1309 USETW(wh->i_dur, dur); 1310 } 1311 1312 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1313 1314 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1315 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1316 1317 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1318 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1319 1320 return 0; 1321} 1322 1323static int 1324rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1325{ 1326 struct rum_softc *sc = ic->ic_softc; 1327 int error; 1328 1329 RUM_LOCK(sc); 1330 if (!sc->sc_running) { 1331 RUM_UNLOCK(sc); 1332 return (ENXIO); 1333 } 1334 error = mbufq_enqueue(&sc->sc_snd, m); 1335 if (error) { 1336 RUM_UNLOCK(sc); 1337 return (error); 1338 } 1339 rum_start(sc); 1340 RUM_UNLOCK(sc); 1341 1342 return (0); 1343} 1344 1345static void 1346rum_start(struct rum_softc *sc) 1347{ 1348 struct ieee80211_node *ni; 1349 struct mbuf *m; 1350 1351 RUM_LOCK_ASSERT(sc); 1352 1353 if (!sc->sc_running) 1354 return; 1355 1356 while (sc->tx_nfree >= RUM_TX_MINFREE && 1357 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1358 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1359 if (rum_tx_data(sc, m, ni) != 0) { 1360 if_inc_counter(ni->ni_vap->iv_ifp, 1361 IFCOUNTER_OERRORS, 1); 1362 ieee80211_free_node(ni); 1363 break; 1364 } 1365 } 1366} 1367 1368static void 1369rum_parent(struct ieee80211com *ic) 1370{ 1371 struct rum_softc *sc = ic->ic_softc; 1372 int startall = 0; 1373 1374 RUM_LOCK(sc); 1375 if (sc->sc_detached) { 1376 RUM_UNLOCK(sc); 1377 return; 1378 } 1379 if (ic->ic_nrunning > 0) { 1380 if (!sc->sc_running) { 1381 rum_init(sc); 1382 startall = 1; 1383 } else 1384 rum_setpromisc(sc); 1385 } else if (sc->sc_running) 1386 rum_stop(sc); 1387 RUM_UNLOCK(sc); 1388 if (startall) 1389 ieee80211_start_all(ic); 1390} 1391 1392static void 1393rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1394{ 1395 struct usb_device_request req; 1396 usb_error_t error; 1397 1398 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1399 req.bRequest = RT2573_READ_EEPROM; 1400 USETW(req.wValue, 0); 1401 USETW(req.wIndex, addr); 1402 USETW(req.wLength, len); 1403 1404 error = rum_do_request(sc, &req, buf); 1405 if (error != 0) { 1406 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1407 usbd_errstr(error)); 1408 } 1409} 1410 1411static uint32_t 1412rum_read(struct rum_softc *sc, uint16_t reg) 1413{ 1414 uint32_t val; 1415 1416 rum_read_multi(sc, reg, &val, sizeof val); 1417 1418 return le32toh(val); 1419} 1420 1421static void 1422rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1423{ 1424 struct usb_device_request req; 1425 usb_error_t error; 1426 1427 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1428 req.bRequest = RT2573_READ_MULTI_MAC; 1429 USETW(req.wValue, 0); 1430 USETW(req.wIndex, reg); 1431 USETW(req.wLength, len); 1432 1433 error = rum_do_request(sc, &req, buf); 1434 if (error != 0) { 1435 device_printf(sc->sc_dev, 1436 "could not multi read MAC register: %s\n", 1437 usbd_errstr(error)); 1438 } 1439} 1440 1441static usb_error_t 1442rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1443{ 1444 uint32_t tmp = htole32(val); 1445 1446 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1447} 1448 1449static usb_error_t 1450rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1451{ 1452 struct usb_device_request req; 1453 usb_error_t error; 1454 size_t offset; 1455 1456 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1457 req.bRequest = RT2573_WRITE_MULTI_MAC; 1458 USETW(req.wValue, 0); 1459 1460 /* write at most 64 bytes at a time */ 1461 for (offset = 0; offset < len; offset += 64) { 1462 USETW(req.wIndex, reg + offset); 1463 USETW(req.wLength, MIN(len - offset, 64)); 1464 1465 error = rum_do_request(sc, &req, (char *)buf + offset); 1466 if (error != 0) { 1467 device_printf(sc->sc_dev, 1468 "could not multi write MAC register: %s\n", 1469 usbd_errstr(error)); 1470 return (error); 1471 } 1472 } 1473 1474 return (USB_ERR_NORMAL_COMPLETION); 1475} 1476 1477static usb_error_t 1478rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1479{ 1480 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1481} 1482 1483static usb_error_t 1484rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1485{ 1486 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1487} 1488 1489static usb_error_t 1490rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1491{ 1492 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1493} 1494 1495static int 1496rum_bbp_busy(struct rum_softc *sc) 1497{ 1498 int ntries; 1499 1500 for (ntries = 0; ntries < 100; ntries++) { 1501 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1502 break; 1503 if (rum_pause(sc, hz / 100)) 1504 break; 1505 } 1506 if (ntries == 100) 1507 return (ETIMEDOUT); 1508 1509 return (0); 1510} 1511 1512static void 1513rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1514{ 1515 uint32_t tmp; 1516 1517 DPRINTFN(2, "reg=0x%08x\n", reg); 1518 1519 if (rum_bbp_busy(sc) != 0) { 1520 device_printf(sc->sc_dev, "could not write to BBP\n"); 1521 return; 1522 } 1523 1524 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1525 rum_write(sc, RT2573_PHY_CSR3, tmp); 1526} 1527 1528static uint8_t 1529rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1530{ 1531 uint32_t val; 1532 int ntries; 1533 1534 DPRINTFN(2, "reg=0x%08x\n", reg); 1535 1536 if (rum_bbp_busy(sc) != 0) { 1537 device_printf(sc->sc_dev, "could not read BBP\n"); 1538 return 0; 1539 } 1540 1541 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1542 rum_write(sc, RT2573_PHY_CSR3, val); 1543 1544 for (ntries = 0; ntries < 100; ntries++) { 1545 val = rum_read(sc, RT2573_PHY_CSR3); 1546 if (!(val & RT2573_BBP_BUSY)) 1547 return val & 0xff; 1548 if (rum_pause(sc, hz / 100)) 1549 break; 1550 } 1551 1552 device_printf(sc->sc_dev, "could not read BBP\n"); 1553 return 0; 1554} 1555 1556static void 1557rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1558{ 1559 uint32_t tmp; 1560 int ntries; 1561 1562 for (ntries = 0; ntries < 100; ntries++) { 1563 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1564 break; 1565 if (rum_pause(sc, hz / 100)) 1566 break; 1567 } 1568 if (ntries == 100) { 1569 device_printf(sc->sc_dev, "could not write to RF\n"); 1570 return; 1571 } 1572 1573 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1574 (reg & 3); 1575 rum_write(sc, RT2573_PHY_CSR4, tmp); 1576 1577 /* remember last written value in sc */ 1578 sc->rf_regs[reg] = val; 1579 1580 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1581} 1582 1583static void 1584rum_select_antenna(struct rum_softc *sc) 1585{ 1586 uint8_t bbp4, bbp77; 1587 uint32_t tmp; 1588 1589 bbp4 = rum_bbp_read(sc, 4); 1590 bbp77 = rum_bbp_read(sc, 77); 1591 1592 /* TBD */ 1593 1594 /* make sure Rx is disabled before switching antenna */ 1595 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1596 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1597 1598 rum_bbp_write(sc, 4, bbp4); 1599 rum_bbp_write(sc, 77, bbp77); 1600 1601 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1602} 1603 1604/* 1605 * Enable multi-rate retries for frames sent at OFDM rates. 1606 * In 802.11b/g mode, allow fallback to CCK rates. 1607 */ 1608static void 1609rum_enable_mrr(struct rum_softc *sc) 1610{ 1611 struct ieee80211com *ic = &sc->sc_ic; 1612 1613 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1614 rum_setbits(sc, RT2573_TXRX_CSR4, 1615 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1616 } else { 1617 rum_modbits(sc, RT2573_TXRX_CSR4, 1618 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1619 } 1620} 1621 1622static void 1623rum_set_txpreamble(struct rum_softc *sc) 1624{ 1625 struct ieee80211com *ic = &sc->sc_ic; 1626 1627 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1628 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1629 else 1630 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1631} 1632 1633static void 1634rum_set_basicrates(struct rum_softc *sc) 1635{ 1636 struct ieee80211com *ic = &sc->sc_ic; 1637 1638 /* update basic rate set */ 1639 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1640 /* 11b basic rates: 1, 2Mbps */ 1641 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1642 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1643 /* 11a basic rates: 6, 12, 24Mbps */ 1644 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1645 } else { 1646 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1647 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1648 } 1649} 1650 1651/* 1652 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1653 * driver. 1654 */ 1655static void 1656rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1657{ 1658 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1659 1660 /* update all BBP registers that depend on the band */ 1661 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1662 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1663 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1664 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1665 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1666 } 1667 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1668 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1669 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1670 } 1671 1672 sc->bbp17 = bbp17; 1673 rum_bbp_write(sc, 17, bbp17); 1674 rum_bbp_write(sc, 96, bbp96); 1675 rum_bbp_write(sc, 104, bbp104); 1676 1677 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1678 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1679 rum_bbp_write(sc, 75, 0x80); 1680 rum_bbp_write(sc, 86, 0x80); 1681 rum_bbp_write(sc, 88, 0x80); 1682 } 1683 1684 rum_bbp_write(sc, 35, bbp35); 1685 rum_bbp_write(sc, 97, bbp97); 1686 rum_bbp_write(sc, 98, bbp98); 1687 1688 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1689 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1690 RT2573_PA_PE_5GHZ); 1691 } else { 1692 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1693 RT2573_PA_PE_2GHZ); 1694 } 1695} 1696 1697static void 1698rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1699{ 1700 struct ieee80211com *ic = &sc->sc_ic; 1701 const struct rfprog *rfprog; 1702 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1703 int8_t power; 1704 int i, chan; 1705 1706 chan = ieee80211_chan2ieee(ic, c); 1707 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1708 return; 1709 1710 /* select the appropriate RF settings based on what EEPROM says */ 1711 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1712 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1713 1714 /* find the settings for this channel (we know it exists) */ 1715 for (i = 0; rfprog[i].chan != chan; i++); 1716 1717 power = sc->txpow[i]; 1718 if (power < 0) { 1719 bbp94 += power; 1720 power = 0; 1721 } else if (power > 31) { 1722 bbp94 += power - 31; 1723 power = 31; 1724 } 1725 1726 /* 1727 * If we are switching from the 2GHz band to the 5GHz band or 1728 * vice-versa, BBP registers need to be reprogrammed. 1729 */ 1730 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1731 rum_select_band(sc, c); 1732 rum_select_antenna(sc); 1733 } 1734 ic->ic_curchan = c; 1735 1736 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1737 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1738 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1739 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1740 1741 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1742 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1743 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1744 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1745 1746 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1747 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1748 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1749 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1750 1751 rum_pause(sc, hz / 100); 1752 1753 /* enable smart mode for MIMO-capable RFs */ 1754 bbp3 = rum_bbp_read(sc, 3); 1755 1756 bbp3 &= ~RT2573_SMART_MODE; 1757 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1758 bbp3 |= RT2573_SMART_MODE; 1759 1760 rum_bbp_write(sc, 3, bbp3); 1761 1762 if (bbp94 != RT2573_BBPR94_DEFAULT) 1763 rum_bbp_write(sc, 94, bbp94); 1764 1765 /* give the chip some extra time to do the switchover */ 1766 rum_pause(sc, hz / 100); 1767} 1768 1769/* 1770 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1771 * and HostAP operating modes. 1772 */ 1773static void 1774rum_enable_tsf_sync(struct rum_softc *sc) 1775{ 1776 struct ieee80211com *ic = &sc->sc_ic; 1777 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1778 uint32_t tmp; 1779 1780 if (vap->iv_opmode != IEEE80211_M_STA) { 1781 /* 1782 * Change default 16ms TBTT adjustment to 8ms. 1783 * Must be done before enabling beacon generation. 1784 */ 1785 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1786 } 1787 1788 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1789 1790 /* set beacon interval (in 1/16ms unit) */ 1791 tmp |= vap->iv_bss->ni_intval * 16; 1792 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1793 1794 switch (vap->iv_opmode) { 1795 case IEEE80211_M_STA: 1796 /* 1797 * Local TSF is always updated with remote TSF on beacon 1798 * reception. 1799 */ 1800 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 1801 break; 1802 case IEEE80211_M_IBSS: 1803 /* 1804 * Local TSF is updated with remote TSF on beacon reception 1805 * only if the remote TSF is greater than local TSF. 1806 */ 1807 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 1808 tmp |= RT2573_BCN_TX_EN; 1809 break; 1810 case IEEE80211_M_HOSTAP: 1811 /* SYNC with nobody */ 1812 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 1813 tmp |= RT2573_BCN_TX_EN; 1814 break; 1815 default: 1816 device_printf(sc->sc_dev, 1817 "Enabling TSF failed. undefined opmode %d\n", 1818 vap->iv_opmode); 1819 return; 1820 } 1821 1822 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1823} 1824 1825static void 1826rum_enable_tsf(struct rum_softc *sc) 1827{ 1828 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 1829 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 1830} 1831 1832static void 1833rum_abort_tsf_sync(struct rum_softc *sc) 1834{ 1835 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 1836} 1837 1838static void 1839rum_update_slot(struct rum_softc *sc) 1840{ 1841 struct ieee80211com *ic = &sc->sc_ic; 1842 uint8_t slottime; 1843 1844 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1845 1846 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 1847 1848 DPRINTF("setting slot time to %uus\n", slottime); 1849} 1850 1851static void 1852rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1853{ 1854 uint32_t tmp; 1855 1856 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1857 rum_write(sc, RT2573_MAC_CSR4, tmp); 1858 1859 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1860 rum_write(sc, RT2573_MAC_CSR5, tmp); 1861} 1862 1863static void 1864rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1865{ 1866 uint32_t tmp; 1867 1868 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1869 rum_write(sc, RT2573_MAC_CSR2, tmp); 1870 1871 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1872 rum_write(sc, RT2573_MAC_CSR3, tmp); 1873} 1874 1875static void 1876rum_setpromisc(struct rum_softc *sc) 1877{ 1878 struct ieee80211com *ic = &sc->sc_ic; 1879 1880 if (ic->ic_promisc == 0) 1881 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1882 else 1883 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1884 1885 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 1886 "entering" : "leaving"); 1887} 1888 1889static void 1890rum_update_promisc(struct ieee80211com *ic) 1891{ 1892 struct rum_softc *sc = ic->ic_softc; 1893 1894 RUM_LOCK(sc); 1895 if (!sc->sc_running) { 1896 RUM_UNLOCK(sc); 1897 return; 1898 } 1899 rum_setpromisc(sc); 1900 RUM_UNLOCK(sc); 1901} 1902 1903static void 1904rum_update_mcast(struct ieee80211com *ic) 1905{ 1906 /* Ignore. */ 1907} 1908 1909static const char * 1910rum_get_rf(int rev) 1911{ 1912 switch (rev) { 1913 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1914 case RT2573_RF_2528: return "RT2528"; 1915 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1916 case RT2573_RF_5226: return "RT5226"; 1917 default: return "unknown"; 1918 } 1919} 1920 1921static void 1922rum_read_eeprom(struct rum_softc *sc) 1923{ 1924 uint16_t val; 1925#ifdef RUM_DEBUG 1926 int i; 1927#endif 1928 1929 /* read MAC address */ 1930 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 1931 1932 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1933 val = le16toh(val); 1934 sc->rf_rev = (val >> 11) & 0x1f; 1935 sc->hw_radio = (val >> 10) & 0x1; 1936 sc->rx_ant = (val >> 4) & 0x3; 1937 sc->tx_ant = (val >> 2) & 0x3; 1938 sc->nb_ant = val & 0x3; 1939 1940 DPRINTF("RF revision=%d\n", sc->rf_rev); 1941 1942 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1943 val = le16toh(val); 1944 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1945 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1946 1947 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1948 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1949 1950 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1951 val = le16toh(val); 1952 if ((val & 0xff) != 0xff) 1953 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1954 1955 /* Only [-10, 10] is valid */ 1956 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1957 sc->rssi_2ghz_corr = 0; 1958 1959 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1960 val = le16toh(val); 1961 if ((val & 0xff) != 0xff) 1962 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1963 1964 /* Only [-10, 10] is valid */ 1965 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1966 sc->rssi_5ghz_corr = 0; 1967 1968 if (sc->ext_2ghz_lna) 1969 sc->rssi_2ghz_corr -= 14; 1970 if (sc->ext_5ghz_lna) 1971 sc->rssi_5ghz_corr -= 14; 1972 1973 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1974 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1975 1976 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1977 val = le16toh(val); 1978 if ((val & 0xff) != 0xff) 1979 sc->rffreq = val & 0xff; 1980 1981 DPRINTF("RF freq=%d\n", sc->rffreq); 1982 1983 /* read Tx power for all a/b/g channels */ 1984 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1985 /* XXX default Tx power for 802.11a channels */ 1986 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1987#ifdef RUM_DEBUG 1988 for (i = 0; i < 14; i++) 1989 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1990#endif 1991 1992 /* read default values for BBP registers */ 1993 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 1994#ifdef RUM_DEBUG 1995 for (i = 0; i < 14; i++) { 1996 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 1997 continue; 1998 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 1999 sc->bbp_prom[i].val); 2000 } 2001#endif 2002} 2003 2004static int 2005rum_bbp_init(struct rum_softc *sc) 2006{ 2007 int i, ntries; 2008 2009 /* wait for BBP to be ready */ 2010 for (ntries = 0; ntries < 100; ntries++) { 2011 const uint8_t val = rum_bbp_read(sc, 0); 2012 if (val != 0 && val != 0xff) 2013 break; 2014 if (rum_pause(sc, hz / 100)) 2015 break; 2016 } 2017 if (ntries == 100) { 2018 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2019 return EIO; 2020 } 2021 2022 /* initialize BBP registers to default values */ 2023 for (i = 0; i < nitems(rum_def_bbp); i++) 2024 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2025 2026 /* write vendor-specific BBP values (from EEPROM) */ 2027 for (i = 0; i < 16; i++) { 2028 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2029 continue; 2030 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2031 } 2032 2033 return 0; 2034} 2035 2036static void 2037rum_init(struct rum_softc *sc) 2038{ 2039 struct ieee80211com *ic = &sc->sc_ic; 2040 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2041 uint32_t tmp; 2042 usb_error_t error; 2043 int i, ntries; 2044 2045 RUM_LOCK_ASSERT(sc); 2046 2047 rum_stop(sc); 2048 2049 /* initialize MAC registers to default values */ 2050 for (i = 0; i < nitems(rum_def_mac); i++) 2051 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2052 2053 /* set host ready */ 2054 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2055 rum_write(sc, RT2573_MAC_CSR1, 0); 2056 2057 /* wait for BBP/RF to wakeup */ 2058 for (ntries = 0; ntries < 100; ntries++) { 2059 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2060 break; 2061 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2062 if (rum_pause(sc, hz / 100)) 2063 break; 2064 } 2065 if (ntries == 100) { 2066 device_printf(sc->sc_dev, 2067 "timeout waiting for BBP/RF to wakeup\n"); 2068 goto fail; 2069 } 2070 2071 if ((error = rum_bbp_init(sc)) != 0) 2072 goto fail; 2073 2074 /* select default channel */ 2075 rum_select_band(sc, ic->ic_curchan); 2076 rum_select_antenna(sc); 2077 rum_set_chan(sc, ic->ic_curchan); 2078 2079 /* clear STA registers */ 2080 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2081 2082 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2083 2084 /* initialize ASIC */ 2085 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2086 2087 /* 2088 * Allocate Tx and Rx xfer queues. 2089 */ 2090 rum_setup_tx_list(sc); 2091 2092 /* update Rx filter */ 2093 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2094 2095 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2096 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2097 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2098 RT2573_DROP_ACKCTS; 2099 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2100 tmp |= RT2573_DROP_TODS; 2101 if (ic->ic_promisc == 0) 2102 tmp |= RT2573_DROP_NOT_TO_ME; 2103 } 2104 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2105 2106 sc->sc_running = 1; 2107 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2108 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2109 return; 2110 2111fail: rum_stop(sc); 2112#undef N 2113} 2114 2115static void 2116rum_stop(struct rum_softc *sc) 2117{ 2118 2119 RUM_LOCK_ASSERT(sc); 2120 2121 sc->sc_running = 0; 2122 2123 RUM_UNLOCK(sc); 2124 2125 /* 2126 * Drain the USB transfers, if not already drained: 2127 */ 2128 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2129 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2130 2131 RUM_LOCK(sc); 2132 2133 rum_unsetup_tx_list(sc); 2134 2135 /* disable Rx */ 2136 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2137 2138 /* reset ASIC */ 2139 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2140 rum_write(sc, RT2573_MAC_CSR1, 0); 2141} 2142 2143static void 2144rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2145{ 2146 struct usb_device_request req; 2147 uint16_t reg = RT2573_MCU_CODE_BASE; 2148 usb_error_t err; 2149 2150 /* copy firmware image into NIC */ 2151 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2152 err = rum_write(sc, reg, UGETDW(ucode)); 2153 if (err) { 2154 /* firmware already loaded ? */ 2155 device_printf(sc->sc_dev, "Firmware load " 2156 "failure! (ignored)\n"); 2157 break; 2158 } 2159 } 2160 2161 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2162 req.bRequest = RT2573_MCU_CNTL; 2163 USETW(req.wValue, RT2573_MCU_RUN); 2164 USETW(req.wIndex, 0); 2165 USETW(req.wLength, 0); 2166 2167 err = rum_do_request(sc, &req, NULL); 2168 if (err != 0) { 2169 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2170 usbd_errstr(err)); 2171 } 2172 2173 /* give the chip some time to boot */ 2174 rum_pause(sc, hz / 8); 2175} 2176 2177static void 2178rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2179{ 2180 struct ieee80211com *ic = vap->iv_ic; 2181 const struct ieee80211_txparam *tp; 2182 struct rum_tx_desc desc; 2183 struct mbuf *m0; 2184 2185 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2186 return; 2187 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2188 return; 2189 2190 m0 = ieee80211_beacon_alloc(vap->iv_bss, &RUM_VAP(vap)->bo); 2191 if (m0 == NULL) 2192 return; 2193 2194 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2195 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2196 m0->m_pkthdr.len, tp->mgmtrate); 2197 2198 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2199 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2200 2201 /* copy beacon header and payload into NIC memory */ 2202 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2203 m0->m_pkthdr.len); 2204 2205 m_freem(m0); 2206} 2207 2208static int 2209rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2210 const struct ieee80211_bpf_params *params) 2211{ 2212 struct rum_softc *sc = ni->ni_ic->ic_softc; 2213 2214 RUM_LOCK(sc); 2215 /* prevent management frames from being sent if we're not ready */ 2216 if (!sc->sc_running) { 2217 RUM_UNLOCK(sc); 2218 m_freem(m); 2219 ieee80211_free_node(ni); 2220 return ENETDOWN; 2221 } 2222 if (sc->tx_nfree < RUM_TX_MINFREE) { 2223 RUM_UNLOCK(sc); 2224 m_freem(m); 2225 ieee80211_free_node(ni); 2226 return EIO; 2227 } 2228 2229 if (params == NULL) { 2230 /* 2231 * Legacy path; interpret frame contents to decide 2232 * precisely how to send the frame. 2233 */ 2234 if (rum_tx_mgt(sc, m, ni) != 0) 2235 goto bad; 2236 } else { 2237 /* 2238 * Caller supplied explicit parameters to use in 2239 * sending the frame. 2240 */ 2241 if (rum_tx_raw(sc, m, ni, params) != 0) 2242 goto bad; 2243 } 2244 RUM_UNLOCK(sc); 2245 2246 return 0; 2247bad: 2248 RUM_UNLOCK(sc); 2249 ieee80211_free_node(ni); 2250 return EIO; 2251} 2252 2253static void 2254rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2255{ 2256 struct ieee80211vap *vap = ni->ni_vap; 2257 struct rum_vap *rvp = RUM_VAP(vap); 2258 2259 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2260 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2261 2262 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2263} 2264 2265static void 2266rum_ratectl_timeout(void *arg) 2267{ 2268 struct rum_vap *rvp = arg; 2269 struct ieee80211vap *vap = &rvp->vap; 2270 struct ieee80211com *ic = vap->iv_ic; 2271 2272 ieee80211_runtask(ic, &rvp->ratectl_task); 2273} 2274 2275static void 2276rum_ratectl_task(void *arg, int pending) 2277{ 2278 struct rum_vap *rvp = arg; 2279 struct ieee80211vap *vap = &rvp->vap; 2280 struct ieee80211com *ic = vap->iv_ic; 2281 struct rum_softc *sc = ic->ic_softc; 2282 struct ieee80211_node *ni; 2283 int ok, fail; 2284 int sum, retrycnt; 2285 2286 RUM_LOCK(sc); 2287 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2288 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2289 2290 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2291 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2292 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2293 sum = ok+fail; 2294 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2295 2296 ni = ieee80211_ref_node(vap->iv_bss); 2297 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2298 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2299 ieee80211_free_node(ni); 2300 2301 /* count TX retry-fail as Tx errors */ 2302 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2303 2304 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2305 RUM_UNLOCK(sc); 2306} 2307 2308static void 2309rum_scan_start(struct ieee80211com *ic) 2310{ 2311 struct rum_softc *sc = ic->ic_softc; 2312 2313 RUM_LOCK(sc); 2314 rum_abort_tsf_sync(sc); 2315 rum_set_bssid(sc, ieee80211broadcastaddr); 2316 RUM_UNLOCK(sc); 2317 2318} 2319 2320static void 2321rum_scan_end(struct ieee80211com *ic) 2322{ 2323 struct rum_softc *sc = ic->ic_softc; 2324 2325 RUM_LOCK(sc); 2326 rum_enable_tsf_sync(sc); 2327 rum_set_bssid(sc, ic->ic_macaddr); 2328 RUM_UNLOCK(sc); 2329 2330} 2331 2332static void 2333rum_set_channel(struct ieee80211com *ic) 2334{ 2335 struct rum_softc *sc = ic->ic_softc; 2336 2337 RUM_LOCK(sc); 2338 rum_set_chan(sc, ic->ic_curchan); 2339 RUM_UNLOCK(sc); 2340} 2341 2342static int 2343rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2344{ 2345 struct ieee80211com *ic = &sc->sc_ic; 2346 int lna, agc, rssi; 2347 2348 lna = (raw >> 5) & 0x3; 2349 agc = raw & 0x1f; 2350 2351 if (lna == 0) { 2352 /* 2353 * No RSSI mapping 2354 * 2355 * NB: Since RSSI is relative to noise floor, -1 is 2356 * adequate for caller to know error happened. 2357 */ 2358 return -1; 2359 } 2360 2361 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2362 2363 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2364 rssi += sc->rssi_2ghz_corr; 2365 2366 if (lna == 1) 2367 rssi -= 64; 2368 else if (lna == 2) 2369 rssi -= 74; 2370 else if (lna == 3) 2371 rssi -= 90; 2372 } else { 2373 rssi += sc->rssi_5ghz_corr; 2374 2375 if (!sc->ext_5ghz_lna && lna != 1) 2376 rssi += 4; 2377 2378 if (lna == 1) 2379 rssi -= 64; 2380 else if (lna == 2) 2381 rssi -= 86; 2382 else if (lna == 3) 2383 rssi -= 100; 2384 } 2385 return rssi; 2386} 2387 2388static int 2389rum_pause(struct rum_softc *sc, int timeout) 2390{ 2391 2392 usb_pause_mtx(&sc->sc_mtx, timeout); 2393 return (0); 2394} 2395 2396static device_method_t rum_methods[] = { 2397 /* Device interface */ 2398 DEVMETHOD(device_probe, rum_match), 2399 DEVMETHOD(device_attach, rum_attach), 2400 DEVMETHOD(device_detach, rum_detach), 2401 DEVMETHOD_END 2402}; 2403 2404static driver_t rum_driver = { 2405 .name = "rum", 2406 .methods = rum_methods, 2407 .size = sizeof(struct rum_softc), 2408}; 2409 2410static devclass_t rum_devclass; 2411 2412DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2413MODULE_DEPEND(rum, wlan, 1, 1, 1); 2414MODULE_DEPEND(rum, usb, 1, 1, 1); 2415MODULE_VERSION(rum, 1); 2416