if_rum.c revision 288616
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288616 2015-10-03 16:37:38Z 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 288616 2015-10-03 16:37:38Z 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_get_tsf(struct rum_softc *, uint64_t *); 210static void rum_update_slot(struct rum_softc *); 211static void rum_set_bssid(struct rum_softc *, const uint8_t *); 212static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 213static void rum_update_mcast(struct ieee80211com *); 214static void rum_update_promisc(struct ieee80211com *); 215static void rum_setpromisc(struct rum_softc *); 216static const char *rum_get_rf(int); 217static void rum_read_eeprom(struct rum_softc *); 218static int rum_bbp_wakeup(struct rum_softc *); 219static int rum_bbp_init(struct rum_softc *); 220static int rum_init(struct rum_softc *); 221static void rum_stop(struct rum_softc *); 222static void rum_load_microcode(struct rum_softc *, const uint8_t *, 223 size_t); 224static void rum_prepare_beacon(struct rum_softc *, 225 struct ieee80211vap *); 226static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 227 const struct ieee80211_bpf_params *); 228static void rum_scan_start(struct ieee80211com *); 229static void rum_scan_end(struct ieee80211com *); 230static void rum_set_channel(struct ieee80211com *); 231static int rum_get_rssi(struct rum_softc *, uint8_t); 232static void rum_ratectl_start(struct rum_softc *, 233 struct ieee80211_node *); 234static void rum_ratectl_timeout(void *); 235static void rum_ratectl_task(void *, int); 236static int rum_pause(struct rum_softc *, int); 237 238static const struct { 239 uint32_t reg; 240 uint32_t val; 241} rum_def_mac[] = { 242 { RT2573_TXRX_CSR0, 0x025fb032 }, 243 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 244 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 245 { RT2573_TXRX_CSR3, 0x00858687 }, 246 { RT2573_TXRX_CSR7, 0x2e31353b }, 247 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 248 { RT2573_TXRX_CSR15, 0x0000000f }, 249 { RT2573_MAC_CSR6, 0x00000fff }, 250 { RT2573_MAC_CSR8, 0x016c030a }, 251 { RT2573_MAC_CSR10, 0x00000718 }, 252 { RT2573_MAC_CSR12, 0x00000004 }, 253 { RT2573_MAC_CSR13, 0x00007f00 }, 254 { RT2573_SEC_CSR0, 0x00000000 }, 255 { RT2573_SEC_CSR1, 0x00000000 }, 256 { RT2573_SEC_CSR5, 0x00000000 }, 257 { RT2573_PHY_CSR1, 0x000023b0 }, 258 { RT2573_PHY_CSR5, 0x00040a06 }, 259 { RT2573_PHY_CSR6, 0x00080606 }, 260 { RT2573_PHY_CSR7, 0x00000408 }, 261 { RT2573_AIFSN_CSR, 0x00002273 }, 262 { RT2573_CWMIN_CSR, 0x00002344 }, 263 { RT2573_CWMAX_CSR, 0x000034aa } 264}; 265 266static const struct { 267 uint8_t reg; 268 uint8_t val; 269} rum_def_bbp[] = { 270 { 3, 0x80 }, 271 { 15, 0x30 }, 272 { 17, 0x20 }, 273 { 21, 0xc8 }, 274 { 22, 0x38 }, 275 { 23, 0x06 }, 276 { 24, 0xfe }, 277 { 25, 0x0a }, 278 { 26, 0x0d }, 279 { 32, 0x0b }, 280 { 34, 0x12 }, 281 { 37, 0x07 }, 282 { 39, 0xf8 }, 283 { 41, 0x60 }, 284 { 53, 0x10 }, 285 { 54, 0x18 }, 286 { 60, 0x10 }, 287 { 61, 0x04 }, 288 { 62, 0x04 }, 289 { 75, 0xfe }, 290 { 86, 0xfe }, 291 { 88, 0xfe }, 292 { 90, 0x0f }, 293 { 99, 0x00 }, 294 { 102, 0x16 }, 295 { 107, 0x04 } 296}; 297 298static const struct rfprog { 299 uint8_t chan; 300 uint32_t r1, r2, r3, r4; 301} rum_rf5226[] = { 302 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 303 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 304 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 305 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 306 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 307 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 308 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 309 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 310 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 311 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 312 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 313 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 314 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 315 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 316 317 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 318 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 319 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 320 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 321 322 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 323 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 324 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 325 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 326 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 327 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 328 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 329 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 330 331 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 332 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 333 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 334 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 335 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 336 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 337 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 338 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 339 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 340 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 341 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 342 343 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 344 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 345 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 346 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 347 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 348}, rum_rf5225[] = { 349 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 350 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 351 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 352 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 353 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 354 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 355 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 356 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 357 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 358 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 359 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 360 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 361 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 362 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 363 364 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 365 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 366 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 367 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 368 369 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 370 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 371 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 372 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 373 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 374 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 375 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 376 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 377 378 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 379 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 380 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 381 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 382 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 383 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 384 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 385 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 386 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 387 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 388 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 389 390 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 391 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 392 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 393 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 394 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 395}; 396 397static const struct usb_config rum_config[RUM_N_TRANSFER] = { 398 [RUM_BULK_WR] = { 399 .type = UE_BULK, 400 .endpoint = UE_ADDR_ANY, 401 .direction = UE_DIR_OUT, 402 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 403 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 404 .callback = rum_bulk_write_callback, 405 .timeout = 5000, /* ms */ 406 }, 407 [RUM_BULK_RD] = { 408 .type = UE_BULK, 409 .endpoint = UE_ADDR_ANY, 410 .direction = UE_DIR_IN, 411 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 412 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 413 .callback = rum_bulk_read_callback, 414 }, 415}; 416 417static int 418rum_match(device_t self) 419{ 420 struct usb_attach_arg *uaa = device_get_ivars(self); 421 422 if (uaa->usb_mode != USB_MODE_HOST) 423 return (ENXIO); 424 if (uaa->info.bConfigIndex != 0) 425 return (ENXIO); 426 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 427 return (ENXIO); 428 429 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 430} 431 432static int 433rum_attach(device_t self) 434{ 435 struct usb_attach_arg *uaa = device_get_ivars(self); 436 struct rum_softc *sc = device_get_softc(self); 437 struct ieee80211com *ic = &sc->sc_ic; 438 uint8_t iface_index, bands; 439 uint32_t tmp; 440 int error, ntries; 441 442 device_set_usb_desc(self); 443 sc->sc_udev = uaa->device; 444 sc->sc_dev = self; 445 446 RUM_LOCK_INIT(sc); 447 RUM_CMDQ_LOCK_INIT(sc); 448 mbufq_init(&sc->sc_snd, ifqmaxlen); 449 450 iface_index = RT2573_IFACE_INDEX; 451 error = usbd_transfer_setup(uaa->device, &iface_index, 452 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 453 if (error) { 454 device_printf(self, "could not allocate USB transfers, " 455 "err=%s\n", usbd_errstr(error)); 456 goto detach; 457 } 458 459 RUM_LOCK(sc); 460 /* retrieve RT2573 rev. no */ 461 for (ntries = 0; ntries < 100; ntries++) { 462 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 463 break; 464 if (rum_pause(sc, hz / 100)) 465 break; 466 } 467 if (ntries == 100) { 468 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 469 RUM_UNLOCK(sc); 470 goto detach; 471 } 472 473 /* retrieve MAC address and various other things from EEPROM */ 474 rum_read_eeprom(sc); 475 476 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 477 tmp, rum_get_rf(sc->rf_rev)); 478 479 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 480 RUM_UNLOCK(sc); 481 482 ic->ic_softc = sc; 483 ic->ic_name = device_get_nameunit(self); 484 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 485 486 /* set device capabilities */ 487 ic->ic_caps = 488 IEEE80211_C_STA /* station mode supported */ 489 | IEEE80211_C_IBSS /* IBSS mode supported */ 490 | IEEE80211_C_MONITOR /* monitor mode supported */ 491 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 492 | IEEE80211_C_TXPMGT /* tx power management */ 493 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 494 | IEEE80211_C_SHSLOT /* short slot time supported */ 495 | IEEE80211_C_BGSCAN /* bg scanning supported */ 496 | IEEE80211_C_WPA /* 802.11i */ 497 ; 498 499 bands = 0; 500 setbit(&bands, IEEE80211_MODE_11B); 501 setbit(&bands, IEEE80211_MODE_11G); 502 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 503 setbit(&bands, IEEE80211_MODE_11A); 504 ieee80211_init_channels(ic, NULL, &bands); 505 506 ieee80211_ifattach(ic); 507 ic->ic_update_promisc = rum_update_promisc; 508 ic->ic_raw_xmit = rum_raw_xmit; 509 ic->ic_scan_start = rum_scan_start; 510 ic->ic_scan_end = rum_scan_end; 511 ic->ic_set_channel = rum_set_channel; 512 ic->ic_transmit = rum_transmit; 513 ic->ic_parent = rum_parent; 514 ic->ic_vap_create = rum_vap_create; 515 ic->ic_vap_delete = rum_vap_delete; 516 ic->ic_update_mcast = rum_update_mcast; 517 518 ieee80211_radiotap_attach(ic, 519 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 520 RT2573_TX_RADIOTAP_PRESENT, 521 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 522 RT2573_RX_RADIOTAP_PRESENT); 523 524 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 525 526 if (bootverbose) 527 ieee80211_announce(ic); 528 529 return (0); 530 531detach: 532 rum_detach(self); 533 return (ENXIO); /* failure */ 534} 535 536static int 537rum_detach(device_t self) 538{ 539 struct rum_softc *sc = device_get_softc(self); 540 struct ieee80211com *ic = &sc->sc_ic; 541 542 /* Prevent further ioctls */ 543 RUM_LOCK(sc); 544 sc->sc_detached = 1; 545 RUM_UNLOCK(sc); 546 547 /* stop all USB transfers */ 548 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 549 550 /* free TX list, if any */ 551 RUM_LOCK(sc); 552 rum_unsetup_tx_list(sc); 553 RUM_UNLOCK(sc); 554 555 if (ic->ic_softc == sc) { 556 ieee80211_draintask(ic, &sc->cmdq_task); 557 ieee80211_ifdetach(ic); 558 } 559 560 mbufq_drain(&sc->sc_snd); 561 RUM_CMDQ_LOCK_DESTROY(sc); 562 RUM_LOCK_DESTROY(sc); 563 564 return (0); 565} 566 567static usb_error_t 568rum_do_request(struct rum_softc *sc, 569 struct usb_device_request *req, void *data) 570{ 571 usb_error_t err; 572 int ntries = 10; 573 574 while (ntries--) { 575 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 576 req, data, 0, NULL, 250 /* ms */); 577 if (err == 0) 578 break; 579 580 DPRINTFN(1, "Control request failed, %s (retrying)\n", 581 usbd_errstr(err)); 582 if (rum_pause(sc, hz / 100)) 583 break; 584 } 585 return (err); 586} 587 588static struct ieee80211vap * 589rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 590 enum ieee80211_opmode opmode, int flags, 591 const uint8_t bssid[IEEE80211_ADDR_LEN], 592 const uint8_t mac[IEEE80211_ADDR_LEN]) 593{ 594 struct rum_softc *sc = ic->ic_softc; 595 struct rum_vap *rvp; 596 struct ieee80211vap *vap; 597 598 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 599 return NULL; 600 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 601 vap = &rvp->vap; 602 /* enable s/w bmiss handling for sta mode */ 603 604 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 605 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 606 /* out of memory */ 607 free(rvp, M_80211_VAP); 608 return (NULL); 609 } 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, 621 ieee80211_media_status, mac); 622 ic->ic_opmode = opmode; 623 return vap; 624} 625 626static void 627rum_vap_delete(struct ieee80211vap *vap) 628{ 629 struct rum_vap *rvp = RUM_VAP(vap); 630 struct ieee80211com *ic = vap->iv_ic; 631 632 usb_callout_drain(&rvp->ratectl_ch); 633 ieee80211_draintask(ic, &rvp->ratectl_task); 634 ieee80211_ratectl_deinit(vap); 635 ieee80211_vap_detach(vap); 636 free(rvp, M_80211_VAP); 637} 638 639static void 640rum_cmdq_cb(void *arg, int pending) 641{ 642 struct rum_softc *sc = arg; 643 struct rum_cmdq *rc; 644 645 RUM_CMDQ_LOCK(sc); 646 while (sc->cmdq[sc->cmdq_first].func != NULL) { 647 rc = &sc->cmdq[sc->cmdq_first]; 648 RUM_CMDQ_UNLOCK(sc); 649 650 RUM_LOCK(sc); 651 rc->func(sc, &rc->data, rc->rn_id, rc->rvp_id); 652 RUM_UNLOCK(sc); 653 654 RUM_CMDQ_LOCK(sc); 655 memset(rc, 0, sizeof (*rc)); 656 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 657 } 658 RUM_CMDQ_UNLOCK(sc); 659} 660 661static int 662rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 663 uint8_t rn_id, uint8_t rvp_id, CMD_FUNC_PROTO) 664{ 665 struct ieee80211com *ic = &sc->sc_ic; 666 667 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 668 669 RUM_CMDQ_LOCK(sc); 670 if (sc->cmdq[sc->cmdq_last].func != NULL) { 671 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 672 RUM_CMDQ_UNLOCK(sc); 673 674 return EAGAIN; 675 } 676 677 if (ptr != NULL) 678 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 679 sc->cmdq[sc->cmdq_last].rn_id = rn_id; 680 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 681 sc->cmdq[sc->cmdq_last].func = func; 682 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 683 RUM_CMDQ_UNLOCK(sc); 684 685 ieee80211_runtask(ic, &sc->cmdq_task); 686 687 return 0; 688} 689 690static void 691rum_tx_free(struct rum_tx_data *data, int txerr) 692{ 693 struct rum_softc *sc = data->sc; 694 695 if (data->m != NULL) { 696 ieee80211_tx_complete(data->ni, data->m, txerr); 697 data->m = NULL; 698 data->ni = NULL; 699 } 700 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 701 sc->tx_nfree++; 702} 703 704static void 705rum_setup_tx_list(struct rum_softc *sc) 706{ 707 struct rum_tx_data *data; 708 int i; 709 710 sc->tx_nfree = 0; 711 STAILQ_INIT(&sc->tx_q); 712 STAILQ_INIT(&sc->tx_free); 713 714 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 715 data = &sc->tx_data[i]; 716 717 data->sc = sc; 718 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 719 sc->tx_nfree++; 720 } 721} 722 723static void 724rum_unsetup_tx_list(struct rum_softc *sc) 725{ 726 struct rum_tx_data *data; 727 int i; 728 729 /* make sure any subsequent use of the queues will fail */ 730 sc->tx_nfree = 0; 731 STAILQ_INIT(&sc->tx_q); 732 STAILQ_INIT(&sc->tx_free); 733 734 /* free up all node references and mbufs */ 735 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 736 data = &sc->tx_data[i]; 737 738 if (data->m != NULL) { 739 m_freem(data->m); 740 data->m = NULL; 741 } 742 if (data->ni != NULL) { 743 ieee80211_free_node(data->ni); 744 data->ni = NULL; 745 } 746 } 747} 748 749static int 750rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 751{ 752 struct rum_vap *rvp = RUM_VAP(vap); 753 struct ieee80211com *ic = vap->iv_ic; 754 struct rum_softc *sc = ic->ic_softc; 755 const struct ieee80211_txparam *tp; 756 enum ieee80211_state ostate; 757 struct ieee80211_node *ni; 758 759 ostate = vap->iv_state; 760 DPRINTF("%s -> %s\n", 761 ieee80211_state_name[ostate], 762 ieee80211_state_name[nstate]); 763 764 IEEE80211_UNLOCK(ic); 765 RUM_LOCK(sc); 766 usb_callout_stop(&rvp->ratectl_ch); 767 768 switch (nstate) { 769 case IEEE80211_S_INIT: 770 if (ostate == IEEE80211_S_RUN) 771 rum_abort_tsf_sync(sc); 772 773 break; 774 775 case IEEE80211_S_RUN: 776 ni = ieee80211_ref_node(vap->iv_bss); 777 778 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 779 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 780 RUM_UNLOCK(sc); 781 IEEE80211_LOCK(ic); 782 ieee80211_free_node(ni); 783 return (-1); 784 } 785 rum_update_slot(sc); 786 rum_enable_mrr(sc); 787 rum_set_txpreamble(sc); 788 rum_set_basicrates(sc); 789 IEEE80211_ADDR_COPY(ic->ic_macaddr, ni->ni_bssid); 790 rum_set_bssid(sc, ic->ic_macaddr); 791 } 792 793 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 794 vap->iv_opmode == IEEE80211_M_IBSS) 795 rum_prepare_beacon(sc, vap); 796 797 if (vap->iv_opmode != IEEE80211_M_MONITOR) 798 rum_enable_tsf_sync(sc); 799 else 800 rum_enable_tsf(sc); 801 802 /* enable automatic rate adaptation */ 803 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 804 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 805 rum_ratectl_start(sc, ni); 806 ieee80211_free_node(ni); 807 break; 808 default: 809 break; 810 } 811 RUM_UNLOCK(sc); 812 IEEE80211_LOCK(ic); 813 return (rvp->newstate(vap, nstate, arg)); 814} 815 816static void 817rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 818{ 819 struct rum_softc *sc = usbd_xfer_softc(xfer); 820 struct ieee80211vap *vap; 821 struct rum_tx_data *data; 822 struct mbuf *m; 823 struct usb_page_cache *pc; 824 unsigned int len; 825 int actlen, sumlen; 826 827 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 828 829 switch (USB_GET_STATE(xfer)) { 830 case USB_ST_TRANSFERRED: 831 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 832 833 /* free resources */ 834 data = usbd_xfer_get_priv(xfer); 835 rum_tx_free(data, 0); 836 usbd_xfer_set_priv(xfer, NULL); 837 838 /* FALLTHROUGH */ 839 case USB_ST_SETUP: 840tr_setup: 841 data = STAILQ_FIRST(&sc->tx_q); 842 if (data) { 843 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 844 m = data->m; 845 846 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 847 DPRINTFN(0, "data overflow, %u bytes\n", 848 m->m_pkthdr.len); 849 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 850 } 851 pc = usbd_xfer_get_frame(xfer, 0); 852 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 853 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 854 m->m_pkthdr.len); 855 856 vap = data->ni->ni_vap; 857 if (ieee80211_radiotap_active_vap(vap)) { 858 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 859 860 tap->wt_flags = 0; 861 tap->wt_rate = data->rate; 862 rum_get_tsf(sc, &tap->wt_tsf); 863 tap->wt_antenna = sc->tx_ant; 864 865 ieee80211_radiotap_tx(vap, m); 866 } 867 868 /* align end on a 4-bytes boundary */ 869 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 870 if ((len % 64) == 0) 871 len += 4; 872 873 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 874 m->m_pkthdr.len, len); 875 876 usbd_xfer_set_frame_len(xfer, 0, len); 877 usbd_xfer_set_priv(xfer, data); 878 879 usbd_transfer_submit(xfer); 880 } 881 rum_start(sc); 882 break; 883 884 default: /* Error */ 885 DPRINTFN(11, "transfer error, %s\n", 886 usbd_errstr(error)); 887 888 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 889 data = usbd_xfer_get_priv(xfer); 890 if (data != NULL) { 891 rum_tx_free(data, error); 892 usbd_xfer_set_priv(xfer, NULL); 893 } 894 895 if (error != USB_ERR_CANCELLED) { 896 if (error == USB_ERR_TIMEOUT) 897 device_printf(sc->sc_dev, "device timeout\n"); 898 899 /* 900 * Try to clear stall first, also if other 901 * errors occur, hence clearing stall 902 * introduces a 50 ms delay: 903 */ 904 usbd_xfer_set_stall(xfer); 905 goto tr_setup; 906 } 907 break; 908 } 909} 910 911static void 912rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 913{ 914 struct rum_softc *sc = usbd_xfer_softc(xfer); 915 struct ieee80211com *ic = &sc->sc_ic; 916 struct ieee80211_frame_min *wh; 917 struct ieee80211_node *ni; 918 struct mbuf *m = NULL; 919 struct usb_page_cache *pc; 920 uint32_t flags; 921 uint8_t rssi = 0; 922 int len; 923 924 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 925 926 switch (USB_GET_STATE(xfer)) { 927 case USB_ST_TRANSFERRED: 928 929 DPRINTFN(15, "rx done, actlen=%d\n", len); 930 931 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 932 DPRINTF("%s: xfer too short %d\n", 933 device_get_nameunit(sc->sc_dev), len); 934 counter_u64_add(ic->ic_ierrors, 1); 935 goto tr_setup; 936 } 937 938 len -= RT2573_RX_DESC_SIZE; 939 pc = usbd_xfer_get_frame(xfer, 0); 940 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 941 942 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 943 flags = le32toh(sc->sc_rx_desc.flags); 944 if (flags & RT2573_RX_CRC_ERROR) { 945 /* 946 * This should not happen since we did not 947 * request to receive those frames when we 948 * filled RUM_TXRX_CSR2: 949 */ 950 DPRINTFN(5, "PHY or CRC error\n"); 951 counter_u64_add(ic->ic_ierrors, 1); 952 goto tr_setup; 953 } 954 955 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 956 if (m == NULL) { 957 DPRINTF("could not allocate mbuf\n"); 958 counter_u64_add(ic->ic_ierrors, 1); 959 goto tr_setup; 960 } 961 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 962 mtod(m, uint8_t *), len); 963 964 wh = mtod(m, struct ieee80211_frame_min *); 965 966 /* finalize mbuf */ 967 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 968 969 if (ieee80211_radiotap_active(ic)) { 970 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 971 972 tap->wr_flags = 0; 973 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 974 (flags & RT2573_RX_OFDM) ? 975 IEEE80211_T_OFDM : IEEE80211_T_CCK); 976 rum_get_tsf(sc, &tap->wr_tsf); 977 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 978 tap->wr_antnoise = RT2573_NOISE_FLOOR; 979 tap->wr_antenna = sc->rx_ant; 980 } 981 /* FALLTHROUGH */ 982 case USB_ST_SETUP: 983tr_setup: 984 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 985 usbd_transfer_submit(xfer); 986 987 /* 988 * At the end of a USB callback it is always safe to unlock 989 * the private mutex of a device! That is why we do the 990 * "ieee80211_input" here, and not some lines up! 991 */ 992 RUM_UNLOCK(sc); 993 if (m) { 994 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 995 ni = ieee80211_find_rxnode(ic, wh); 996 else 997 ni = NULL; 998 999 if (ni != NULL) { 1000 (void) ieee80211_input(ni, m, rssi, 1001 RT2573_NOISE_FLOOR); 1002 ieee80211_free_node(ni); 1003 } else 1004 (void) ieee80211_input_all(ic, m, rssi, 1005 RT2573_NOISE_FLOOR); 1006 } 1007 RUM_LOCK(sc); 1008 rum_start(sc); 1009 return; 1010 1011 default: /* Error */ 1012 if (error != USB_ERR_CANCELLED) { 1013 /* try to clear stall first */ 1014 usbd_xfer_set_stall(xfer); 1015 goto tr_setup; 1016 } 1017 return; 1018 } 1019} 1020 1021static uint8_t 1022rum_plcp_signal(int rate) 1023{ 1024 switch (rate) { 1025 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1026 case 12: return 0xb; 1027 case 18: return 0xf; 1028 case 24: return 0xa; 1029 case 36: return 0xe; 1030 case 48: return 0x9; 1031 case 72: return 0xd; 1032 case 96: return 0x8; 1033 case 108: return 0xc; 1034 1035 /* CCK rates (NB: not IEEE std, device-specific) */ 1036 case 2: return 0x0; 1037 case 4: return 0x1; 1038 case 11: return 0x2; 1039 case 22: return 0x3; 1040 } 1041 return 0xff; /* XXX unsupported/unknown rate */ 1042} 1043 1044static void 1045rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1046 uint32_t flags, uint16_t xflags, int len, int rate) 1047{ 1048 struct ieee80211com *ic = &sc->sc_ic; 1049 uint16_t plcp_length; 1050 int remainder; 1051 1052 desc->flags = htole32(flags); 1053 desc->flags |= htole32(RT2573_TX_VALID); 1054 desc->flags |= htole32(len << 16); 1055 1056 desc->xflags = htole16(xflags); 1057 1058 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1059 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1060 1061 /* setup PLCP fields */ 1062 desc->plcp_signal = rum_plcp_signal(rate); 1063 desc->plcp_service = 4; 1064 1065 len += IEEE80211_CRC_LEN; 1066 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1067 desc->flags |= htole32(RT2573_TX_OFDM); 1068 1069 plcp_length = len & 0xfff; 1070 desc->plcp_length_hi = plcp_length >> 6; 1071 desc->plcp_length_lo = plcp_length & 0x3f; 1072 } else { 1073 if (rate == 0) 1074 rate = 2; /* avoid division by zero */ 1075 plcp_length = (16 * len + rate - 1) / rate; 1076 if (rate == 22) { 1077 remainder = (16 * len) % 22; 1078 if (remainder != 0 && remainder < 7) 1079 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1080 } 1081 desc->plcp_length_hi = plcp_length >> 8; 1082 desc->plcp_length_lo = plcp_length & 0xff; 1083 1084 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1085 desc->plcp_signal |= 0x08; 1086 } 1087} 1088 1089static int 1090rum_sendprot(struct rum_softc *sc, 1091 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1092{ 1093 struct ieee80211com *ic = ni->ni_ic; 1094 const struct ieee80211_frame *wh; 1095 struct rum_tx_data *data; 1096 struct mbuf *mprot; 1097 int protrate, pktlen, flags, isshort; 1098 uint16_t dur; 1099 1100 RUM_LOCK_ASSERT(sc); 1101 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1102 ("protection %d", prot)); 1103 1104 wh = mtod(m, const struct ieee80211_frame *); 1105 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1106 1107 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1108 1109 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1110 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1111 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1112 flags = RT2573_TX_MORE_FRAG; 1113 if (prot == IEEE80211_PROT_RTSCTS) { 1114 /* NB: CTS is the same size as an ACK */ 1115 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1116 flags |= RT2573_TX_NEED_ACK; 1117 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1118 } else { 1119 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1120 } 1121 if (mprot == NULL) { 1122 /* XXX stat + msg */ 1123 return (ENOBUFS); 1124 } 1125 data = STAILQ_FIRST(&sc->tx_free); 1126 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1127 sc->tx_nfree--; 1128 1129 data->m = mprot; 1130 data->ni = ieee80211_ref_node(ni); 1131 data->rate = protrate; 1132 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1133 1134 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1135 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1136 1137 return 0; 1138} 1139 1140static int 1141rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1142{ 1143 struct ieee80211vap *vap = ni->ni_vap; 1144 struct ieee80211com *ic = &sc->sc_ic; 1145 struct rum_tx_data *data; 1146 struct ieee80211_frame *wh; 1147 const struct ieee80211_txparam *tp; 1148 struct ieee80211_key *k; 1149 uint32_t flags = 0; 1150 uint16_t dur; 1151 1152 RUM_LOCK_ASSERT(sc); 1153 1154 data = STAILQ_FIRST(&sc->tx_free); 1155 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1156 sc->tx_nfree--; 1157 1158 wh = mtod(m0, struct ieee80211_frame *); 1159 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1160 k = ieee80211_crypto_encap(ni, m0); 1161 if (k == NULL) 1162 return (ENOBUFS); 1163 1164 wh = mtod(m0, struct ieee80211_frame *); 1165 } 1166 1167 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1168 1169 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1170 flags |= RT2573_TX_NEED_ACK; 1171 1172 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1173 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1174 USETW(wh->i_dur, dur); 1175 1176 /* tell hardware to add timestamp for probe responses */ 1177 if ((wh->i_fc[0] & 1178 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1179 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1180 flags |= RT2573_TX_TIMESTAMP; 1181 } 1182 1183 data->m = m0; 1184 data->ni = ni; 1185 data->rate = tp->mgmtrate; 1186 1187 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1188 1189 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1190 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1191 1192 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1193 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1194 1195 return (0); 1196} 1197 1198static int 1199rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1200 const struct ieee80211_bpf_params *params) 1201{ 1202 struct ieee80211com *ic = ni->ni_ic; 1203 struct rum_tx_data *data; 1204 uint32_t flags; 1205 int rate, error; 1206 1207 RUM_LOCK_ASSERT(sc); 1208 1209 rate = params->ibp_rate0; 1210 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1211 return (EINVAL); 1212 1213 flags = 0; 1214 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1215 flags |= RT2573_TX_NEED_ACK; 1216 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1217 error = rum_sendprot(sc, m0, ni, 1218 params->ibp_flags & IEEE80211_BPF_RTS ? 1219 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1220 rate); 1221 if (error || sc->tx_nfree == 0) 1222 return (ENOBUFS); 1223 1224 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1225 } 1226 1227 data = STAILQ_FIRST(&sc->tx_free); 1228 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1229 sc->tx_nfree--; 1230 1231 data->m = m0; 1232 data->ni = ni; 1233 data->rate = rate; 1234 1235 /* XXX need to setup descriptor ourself */ 1236 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1237 1238 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1239 m0->m_pkthdr.len, rate); 1240 1241 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1242 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1243 1244 return 0; 1245} 1246 1247static int 1248rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1249{ 1250 struct ieee80211vap *vap = ni->ni_vap; 1251 struct ieee80211com *ic = &sc->sc_ic; 1252 struct rum_tx_data *data; 1253 struct ieee80211_frame *wh; 1254 const struct ieee80211_txparam *tp; 1255 struct ieee80211_key *k; 1256 uint32_t flags = 0; 1257 uint16_t dur; 1258 int error, rate; 1259 1260 RUM_LOCK_ASSERT(sc); 1261 1262 wh = mtod(m0, struct ieee80211_frame *); 1263 1264 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1265 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1266 rate = tp->mcastrate; 1267 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1268 rate = tp->ucastrate; 1269 else 1270 rate = ni->ni_txrate; 1271 1272 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1273 k = ieee80211_crypto_encap(ni, m0); 1274 if (k == NULL) { 1275 m_freem(m0); 1276 return ENOBUFS; 1277 } 1278 1279 /* packet header may have moved, reset our local pointer */ 1280 wh = mtod(m0, struct ieee80211_frame *); 1281 } 1282 1283 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1284 int prot = IEEE80211_PROT_NONE; 1285 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1286 prot = IEEE80211_PROT_RTSCTS; 1287 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1288 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1289 prot = ic->ic_protmode; 1290 if (prot != IEEE80211_PROT_NONE) { 1291 error = rum_sendprot(sc, m0, ni, prot, rate); 1292 if (error || sc->tx_nfree == 0) { 1293 m_freem(m0); 1294 return ENOBUFS; 1295 } 1296 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1297 } 1298 } 1299 1300 data = STAILQ_FIRST(&sc->tx_free); 1301 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1302 sc->tx_nfree--; 1303 1304 data->m = m0; 1305 data->ni = ni; 1306 data->rate = rate; 1307 1308 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1309 flags |= RT2573_TX_NEED_ACK; 1310 flags |= RT2573_TX_MORE_FRAG; 1311 1312 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1313 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1314 USETW(wh->i_dur, dur); 1315 } 1316 1317 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1318 1319 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1320 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1321 1322 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1323 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1324 1325 return 0; 1326} 1327 1328static int 1329rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1330{ 1331 struct rum_softc *sc = ic->ic_softc; 1332 int error; 1333 1334 RUM_LOCK(sc); 1335 if (!sc->sc_running) { 1336 RUM_UNLOCK(sc); 1337 return (ENXIO); 1338 } 1339 error = mbufq_enqueue(&sc->sc_snd, m); 1340 if (error) { 1341 RUM_UNLOCK(sc); 1342 return (error); 1343 } 1344 rum_start(sc); 1345 RUM_UNLOCK(sc); 1346 1347 return (0); 1348} 1349 1350static void 1351rum_start(struct rum_softc *sc) 1352{ 1353 struct ieee80211_node *ni; 1354 struct mbuf *m; 1355 1356 RUM_LOCK_ASSERT(sc); 1357 1358 if (!sc->sc_running) 1359 return; 1360 1361 while (sc->tx_nfree >= RUM_TX_MINFREE && 1362 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1363 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1364 if (rum_tx_data(sc, m, ni) != 0) { 1365 if_inc_counter(ni->ni_vap->iv_ifp, 1366 IFCOUNTER_OERRORS, 1); 1367 ieee80211_free_node(ni); 1368 break; 1369 } 1370 } 1371} 1372 1373static void 1374rum_parent(struct ieee80211com *ic) 1375{ 1376 struct rum_softc *sc = ic->ic_softc; 1377 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1378 1379 RUM_LOCK(sc); 1380 if (sc->sc_detached) { 1381 RUM_UNLOCK(sc); 1382 return; 1383 } 1384 RUM_UNLOCK(sc); 1385 1386 if (ic->ic_nrunning > 0) { 1387 if (rum_init(sc) == 0) 1388 ieee80211_start_all(ic); 1389 else 1390 ieee80211_stop(vap); 1391 } else 1392 rum_stop(sc); 1393} 1394 1395static void 1396rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1397{ 1398 struct usb_device_request req; 1399 usb_error_t error; 1400 1401 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1402 req.bRequest = RT2573_READ_EEPROM; 1403 USETW(req.wValue, 0); 1404 USETW(req.wIndex, addr); 1405 USETW(req.wLength, len); 1406 1407 error = rum_do_request(sc, &req, buf); 1408 if (error != 0) { 1409 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1410 usbd_errstr(error)); 1411 } 1412} 1413 1414static uint32_t 1415rum_read(struct rum_softc *sc, uint16_t reg) 1416{ 1417 uint32_t val; 1418 1419 rum_read_multi(sc, reg, &val, sizeof val); 1420 1421 return le32toh(val); 1422} 1423 1424static void 1425rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1426{ 1427 struct usb_device_request req; 1428 usb_error_t error; 1429 1430 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1431 req.bRequest = RT2573_READ_MULTI_MAC; 1432 USETW(req.wValue, 0); 1433 USETW(req.wIndex, reg); 1434 USETW(req.wLength, len); 1435 1436 error = rum_do_request(sc, &req, buf); 1437 if (error != 0) { 1438 device_printf(sc->sc_dev, 1439 "could not multi read MAC register: %s\n", 1440 usbd_errstr(error)); 1441 } 1442} 1443 1444static usb_error_t 1445rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1446{ 1447 uint32_t tmp = htole32(val); 1448 1449 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1450} 1451 1452static usb_error_t 1453rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1454{ 1455 struct usb_device_request req; 1456 usb_error_t error; 1457 size_t offset; 1458 1459 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1460 req.bRequest = RT2573_WRITE_MULTI_MAC; 1461 USETW(req.wValue, 0); 1462 1463 /* write at most 64 bytes at a time */ 1464 for (offset = 0; offset < len; offset += 64) { 1465 USETW(req.wIndex, reg + offset); 1466 USETW(req.wLength, MIN(len - offset, 64)); 1467 1468 error = rum_do_request(sc, &req, (char *)buf + offset); 1469 if (error != 0) { 1470 device_printf(sc->sc_dev, 1471 "could not multi write MAC register: %s\n", 1472 usbd_errstr(error)); 1473 return (error); 1474 } 1475 } 1476 1477 return (USB_ERR_NORMAL_COMPLETION); 1478} 1479 1480static usb_error_t 1481rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1482{ 1483 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1484} 1485 1486static usb_error_t 1487rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1488{ 1489 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1490} 1491 1492static usb_error_t 1493rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1494{ 1495 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1496} 1497 1498static int 1499rum_bbp_busy(struct rum_softc *sc) 1500{ 1501 int ntries; 1502 1503 for (ntries = 0; ntries < 100; ntries++) { 1504 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1505 break; 1506 if (rum_pause(sc, hz / 100)) 1507 break; 1508 } 1509 if (ntries == 100) 1510 return (ETIMEDOUT); 1511 1512 return (0); 1513} 1514 1515static void 1516rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1517{ 1518 uint32_t tmp; 1519 1520 DPRINTFN(2, "reg=0x%08x\n", reg); 1521 1522 if (rum_bbp_busy(sc) != 0) { 1523 device_printf(sc->sc_dev, "could not write to BBP\n"); 1524 return; 1525 } 1526 1527 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1528 rum_write(sc, RT2573_PHY_CSR3, tmp); 1529} 1530 1531static uint8_t 1532rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1533{ 1534 uint32_t val; 1535 int ntries; 1536 1537 DPRINTFN(2, "reg=0x%08x\n", reg); 1538 1539 if (rum_bbp_busy(sc) != 0) { 1540 device_printf(sc->sc_dev, "could not read BBP\n"); 1541 return 0; 1542 } 1543 1544 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1545 rum_write(sc, RT2573_PHY_CSR3, val); 1546 1547 for (ntries = 0; ntries < 100; ntries++) { 1548 val = rum_read(sc, RT2573_PHY_CSR3); 1549 if (!(val & RT2573_BBP_BUSY)) 1550 return val & 0xff; 1551 if (rum_pause(sc, hz / 100)) 1552 break; 1553 } 1554 1555 device_printf(sc->sc_dev, "could not read BBP\n"); 1556 return 0; 1557} 1558 1559static void 1560rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1561{ 1562 uint32_t tmp; 1563 int ntries; 1564 1565 for (ntries = 0; ntries < 100; ntries++) { 1566 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1567 break; 1568 if (rum_pause(sc, hz / 100)) 1569 break; 1570 } 1571 if (ntries == 100) { 1572 device_printf(sc->sc_dev, "could not write to RF\n"); 1573 return; 1574 } 1575 1576 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1577 (reg & 3); 1578 rum_write(sc, RT2573_PHY_CSR4, tmp); 1579 1580 /* remember last written value in sc */ 1581 sc->rf_regs[reg] = val; 1582 1583 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1584} 1585 1586static void 1587rum_select_antenna(struct rum_softc *sc) 1588{ 1589 uint8_t bbp4, bbp77; 1590 uint32_t tmp; 1591 1592 bbp4 = rum_bbp_read(sc, 4); 1593 bbp77 = rum_bbp_read(sc, 77); 1594 1595 /* TBD */ 1596 1597 /* make sure Rx is disabled before switching antenna */ 1598 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1599 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1600 1601 rum_bbp_write(sc, 4, bbp4); 1602 rum_bbp_write(sc, 77, bbp77); 1603 1604 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1605} 1606 1607/* 1608 * Enable multi-rate retries for frames sent at OFDM rates. 1609 * In 802.11b/g mode, allow fallback to CCK rates. 1610 */ 1611static void 1612rum_enable_mrr(struct rum_softc *sc) 1613{ 1614 struct ieee80211com *ic = &sc->sc_ic; 1615 1616 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1617 rum_setbits(sc, RT2573_TXRX_CSR4, 1618 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1619 } else { 1620 rum_modbits(sc, RT2573_TXRX_CSR4, 1621 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1622 } 1623} 1624 1625static void 1626rum_set_txpreamble(struct rum_softc *sc) 1627{ 1628 struct ieee80211com *ic = &sc->sc_ic; 1629 1630 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1631 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1632 else 1633 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1634} 1635 1636static void 1637rum_set_basicrates(struct rum_softc *sc) 1638{ 1639 struct ieee80211com *ic = &sc->sc_ic; 1640 1641 /* update basic rate set */ 1642 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1643 /* 11b basic rates: 1, 2Mbps */ 1644 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1645 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1646 /* 11a basic rates: 6, 12, 24Mbps */ 1647 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1648 } else { 1649 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1650 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1651 } 1652} 1653 1654/* 1655 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1656 * driver. 1657 */ 1658static void 1659rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1660{ 1661 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1662 1663 /* update all BBP registers that depend on the band */ 1664 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1665 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1666 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1667 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1668 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1669 } 1670 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1671 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1672 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1673 } 1674 1675 sc->bbp17 = bbp17; 1676 rum_bbp_write(sc, 17, bbp17); 1677 rum_bbp_write(sc, 96, bbp96); 1678 rum_bbp_write(sc, 104, bbp104); 1679 1680 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1681 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1682 rum_bbp_write(sc, 75, 0x80); 1683 rum_bbp_write(sc, 86, 0x80); 1684 rum_bbp_write(sc, 88, 0x80); 1685 } 1686 1687 rum_bbp_write(sc, 35, bbp35); 1688 rum_bbp_write(sc, 97, bbp97); 1689 rum_bbp_write(sc, 98, bbp98); 1690 1691 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1692 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1693 RT2573_PA_PE_5GHZ); 1694 } else { 1695 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1696 RT2573_PA_PE_2GHZ); 1697 } 1698} 1699 1700static void 1701rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1702{ 1703 struct ieee80211com *ic = &sc->sc_ic; 1704 const struct rfprog *rfprog; 1705 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1706 int8_t power; 1707 int i, chan; 1708 1709 chan = ieee80211_chan2ieee(ic, c); 1710 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1711 return; 1712 1713 /* select the appropriate RF settings based on what EEPROM says */ 1714 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1715 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1716 1717 /* find the settings for this channel (we know it exists) */ 1718 for (i = 0; rfprog[i].chan != chan; i++); 1719 1720 power = sc->txpow[i]; 1721 if (power < 0) { 1722 bbp94 += power; 1723 power = 0; 1724 } else if (power > 31) { 1725 bbp94 += power - 31; 1726 power = 31; 1727 } 1728 1729 /* 1730 * If we are switching from the 2GHz band to the 5GHz band or 1731 * vice-versa, BBP registers need to be reprogrammed. 1732 */ 1733 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1734 rum_select_band(sc, c); 1735 rum_select_antenna(sc); 1736 } 1737 ic->ic_curchan = c; 1738 1739 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1740 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1741 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1742 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1743 1744 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1745 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1746 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1747 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1748 1749 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1750 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1751 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1752 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1753 1754 rum_pause(sc, hz / 100); 1755 1756 /* enable smart mode for MIMO-capable RFs */ 1757 bbp3 = rum_bbp_read(sc, 3); 1758 1759 bbp3 &= ~RT2573_SMART_MODE; 1760 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1761 bbp3 |= RT2573_SMART_MODE; 1762 1763 rum_bbp_write(sc, 3, bbp3); 1764 1765 if (bbp94 != RT2573_BBPR94_DEFAULT) 1766 rum_bbp_write(sc, 94, bbp94); 1767 1768 /* give the chip some extra time to do the switchover */ 1769 rum_pause(sc, hz / 100); 1770} 1771 1772/* 1773 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1774 * and HostAP operating modes. 1775 */ 1776static void 1777rum_enable_tsf_sync(struct rum_softc *sc) 1778{ 1779 struct ieee80211com *ic = &sc->sc_ic; 1780 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1781 uint32_t tmp; 1782 1783 if (vap->iv_opmode != IEEE80211_M_STA) { 1784 /* 1785 * Change default 16ms TBTT adjustment to 8ms. 1786 * Must be done before enabling beacon generation. 1787 */ 1788 rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8); 1789 } 1790 1791 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1792 1793 /* set beacon interval (in 1/16ms unit) */ 1794 tmp |= vap->iv_bss->ni_intval * 16; 1795 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1796 1797 switch (vap->iv_opmode) { 1798 case IEEE80211_M_STA: 1799 /* 1800 * Local TSF is always updated with remote TSF on beacon 1801 * reception. 1802 */ 1803 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 1804 break; 1805 case IEEE80211_M_IBSS: 1806 /* 1807 * Local TSF is updated with remote TSF on beacon reception 1808 * only if the remote TSF is greater than local TSF. 1809 */ 1810 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 1811 tmp |= RT2573_BCN_TX_EN; 1812 break; 1813 case IEEE80211_M_HOSTAP: 1814 /* SYNC with nobody */ 1815 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 1816 tmp |= RT2573_BCN_TX_EN; 1817 break; 1818 default: 1819 device_printf(sc->sc_dev, 1820 "Enabling TSF failed. undefined opmode %d\n", 1821 vap->iv_opmode); 1822 return; 1823 } 1824 1825 rum_write(sc, RT2573_TXRX_CSR9, tmp); 1826} 1827 1828static void 1829rum_enable_tsf(struct rum_softc *sc) 1830{ 1831 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 1832 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 1833} 1834 1835static void 1836rum_abort_tsf_sync(struct rum_softc *sc) 1837{ 1838 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 1839} 1840 1841static void 1842rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 1843{ 1844 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 1845} 1846 1847static void 1848rum_update_slot(struct rum_softc *sc) 1849{ 1850 struct ieee80211com *ic = &sc->sc_ic; 1851 uint8_t slottime; 1852 1853 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1854 1855 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 1856 1857 DPRINTF("setting slot time to %uus\n", slottime); 1858} 1859 1860static void 1861rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1862{ 1863 uint32_t tmp; 1864 1865 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1866 rum_write(sc, RT2573_MAC_CSR4, tmp); 1867 1868 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1869 rum_write(sc, RT2573_MAC_CSR5, tmp); 1870} 1871 1872static void 1873rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1874{ 1875 uint32_t tmp; 1876 1877 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1878 rum_write(sc, RT2573_MAC_CSR2, tmp); 1879 1880 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1881 rum_write(sc, RT2573_MAC_CSR3, tmp); 1882} 1883 1884static void 1885rum_setpromisc(struct rum_softc *sc) 1886{ 1887 struct ieee80211com *ic = &sc->sc_ic; 1888 1889 if (ic->ic_promisc == 0) 1890 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1891 else 1892 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1893 1894 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 1895 "entering" : "leaving"); 1896} 1897 1898static void 1899rum_update_promisc(struct ieee80211com *ic) 1900{ 1901 struct rum_softc *sc = ic->ic_softc; 1902 1903 RUM_LOCK(sc); 1904 if (!sc->sc_running) { 1905 RUM_UNLOCK(sc); 1906 return; 1907 } 1908 rum_setpromisc(sc); 1909 RUM_UNLOCK(sc); 1910} 1911 1912static void 1913rum_update_mcast(struct ieee80211com *ic) 1914{ 1915 /* Ignore. */ 1916} 1917 1918static const char * 1919rum_get_rf(int rev) 1920{ 1921 switch (rev) { 1922 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1923 case RT2573_RF_2528: return "RT2528"; 1924 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1925 case RT2573_RF_5226: return "RT5226"; 1926 default: return "unknown"; 1927 } 1928} 1929 1930static void 1931rum_read_eeprom(struct rum_softc *sc) 1932{ 1933 uint16_t val; 1934#ifdef RUM_DEBUG 1935 int i; 1936#endif 1937 1938 /* read MAC address */ 1939 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 1940 1941 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1942 val = le16toh(val); 1943 sc->rf_rev = (val >> 11) & 0x1f; 1944 sc->hw_radio = (val >> 10) & 0x1; 1945 sc->rx_ant = (val >> 4) & 0x3; 1946 sc->tx_ant = (val >> 2) & 0x3; 1947 sc->nb_ant = val & 0x3; 1948 1949 DPRINTF("RF revision=%d\n", sc->rf_rev); 1950 1951 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1952 val = le16toh(val); 1953 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1954 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1955 1956 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1957 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1958 1959 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1960 val = le16toh(val); 1961 if ((val & 0xff) != 0xff) 1962 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1963 1964 /* Only [-10, 10] is valid */ 1965 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1966 sc->rssi_2ghz_corr = 0; 1967 1968 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1969 val = le16toh(val); 1970 if ((val & 0xff) != 0xff) 1971 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1972 1973 /* Only [-10, 10] is valid */ 1974 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1975 sc->rssi_5ghz_corr = 0; 1976 1977 if (sc->ext_2ghz_lna) 1978 sc->rssi_2ghz_corr -= 14; 1979 if (sc->ext_5ghz_lna) 1980 sc->rssi_5ghz_corr -= 14; 1981 1982 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1983 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1984 1985 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1986 val = le16toh(val); 1987 if ((val & 0xff) != 0xff) 1988 sc->rffreq = val & 0xff; 1989 1990 DPRINTF("RF freq=%d\n", sc->rffreq); 1991 1992 /* read Tx power for all a/b/g channels */ 1993 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 1994 /* XXX default Tx power for 802.11a channels */ 1995 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 1996#ifdef RUM_DEBUG 1997 for (i = 0; i < 14; i++) 1998 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 1999#endif 2000 2001 /* read default values for BBP registers */ 2002 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2003#ifdef RUM_DEBUG 2004 for (i = 0; i < 14; i++) { 2005 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2006 continue; 2007 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2008 sc->bbp_prom[i].val); 2009 } 2010#endif 2011} 2012 2013static int 2014rum_bbp_wakeup(struct rum_softc *sc) 2015{ 2016 unsigned int ntries; 2017 2018 for (ntries = 0; ntries < 100; ntries++) { 2019 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2020 break; 2021 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2022 if (rum_pause(sc, hz / 100)) 2023 break; 2024 } 2025 if (ntries == 100) { 2026 device_printf(sc->sc_dev, 2027 "timeout waiting for BBP/RF to wakeup\n"); 2028 return (ETIMEDOUT); 2029 } 2030 2031 return (0); 2032} 2033 2034static int 2035rum_bbp_init(struct rum_softc *sc) 2036{ 2037 int i, ntries; 2038 2039 /* wait for BBP to be ready */ 2040 for (ntries = 0; ntries < 100; ntries++) { 2041 const uint8_t val = rum_bbp_read(sc, 0); 2042 if (val != 0 && val != 0xff) 2043 break; 2044 if (rum_pause(sc, hz / 100)) 2045 break; 2046 } 2047 if (ntries == 100) { 2048 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2049 return EIO; 2050 } 2051 2052 /* initialize BBP registers to default values */ 2053 for (i = 0; i < nitems(rum_def_bbp); i++) 2054 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2055 2056 /* write vendor-specific BBP values (from EEPROM) */ 2057 for (i = 0; i < 16; i++) { 2058 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2059 continue; 2060 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2061 } 2062 2063 return 0; 2064} 2065 2066static int 2067rum_init(struct rum_softc *sc) 2068{ 2069 struct ieee80211com *ic = &sc->sc_ic; 2070 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2071 uint32_t tmp; 2072 int i, ret; 2073 2074 RUM_LOCK(sc); 2075 if (sc->sc_running) { 2076 ret = 0; 2077 goto end; 2078 } 2079 2080 /* initialize MAC registers to default values */ 2081 for (i = 0; i < nitems(rum_def_mac); i++) 2082 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2083 2084 /* set host ready */ 2085 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2086 rum_write(sc, RT2573_MAC_CSR1, 0); 2087 2088 /* wait for BBP/RF to wakeup */ 2089 if ((ret = rum_bbp_wakeup(sc)) != 0) 2090 goto end; 2091 2092 if ((ret = rum_bbp_init(sc)) != 0) 2093 goto end; 2094 2095 /* select default channel */ 2096 rum_select_band(sc, ic->ic_curchan); 2097 rum_select_antenna(sc); 2098 rum_set_chan(sc, ic->ic_curchan); 2099 2100 /* clear STA registers */ 2101 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2102 2103 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2104 2105 /* initialize ASIC */ 2106 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2107 2108 /* 2109 * Allocate Tx and Rx xfer queues. 2110 */ 2111 rum_setup_tx_list(sc); 2112 2113 /* update Rx filter */ 2114 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2115 2116 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2117 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2118 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2119 RT2573_DROP_ACKCTS; 2120 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2121 tmp |= RT2573_DROP_TODS; 2122 if (ic->ic_promisc == 0) 2123 tmp |= RT2573_DROP_NOT_TO_ME; 2124 } 2125 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2126 2127 sc->sc_running = 1; 2128 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2129 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2130 2131end: RUM_UNLOCK(sc); 2132 2133 if (ret != 0) 2134 rum_stop(sc); 2135 2136 return ret; 2137} 2138 2139static void 2140rum_stop(struct rum_softc *sc) 2141{ 2142 2143 RUM_LOCK(sc); 2144 if (!sc->sc_running) { 2145 RUM_UNLOCK(sc); 2146 return; 2147 } 2148 sc->sc_running = 0; 2149 RUM_UNLOCK(sc); 2150 2151 /* 2152 * Drain the USB transfers, if not already drained: 2153 */ 2154 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2155 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2156 2157 RUM_LOCK(sc); 2158 rum_unsetup_tx_list(sc); 2159 2160 /* disable Rx */ 2161 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2162 2163 /* reset ASIC */ 2164 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2165 rum_write(sc, RT2573_MAC_CSR1, 0); 2166 RUM_UNLOCK(sc); 2167} 2168 2169static void 2170rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2171{ 2172 struct usb_device_request req; 2173 uint16_t reg = RT2573_MCU_CODE_BASE; 2174 usb_error_t err; 2175 2176 /* copy firmware image into NIC */ 2177 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2178 err = rum_write(sc, reg, UGETDW(ucode)); 2179 if (err) { 2180 /* firmware already loaded ? */ 2181 device_printf(sc->sc_dev, "Firmware load " 2182 "failure! (ignored)\n"); 2183 break; 2184 } 2185 } 2186 2187 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2188 req.bRequest = RT2573_MCU_CNTL; 2189 USETW(req.wValue, RT2573_MCU_RUN); 2190 USETW(req.wIndex, 0); 2191 USETW(req.wLength, 0); 2192 2193 err = rum_do_request(sc, &req, NULL); 2194 if (err != 0) { 2195 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2196 usbd_errstr(err)); 2197 } 2198 2199 /* give the chip some time to boot */ 2200 rum_pause(sc, hz / 8); 2201} 2202 2203static void 2204rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2205{ 2206 struct ieee80211com *ic = vap->iv_ic; 2207 const struct ieee80211_txparam *tp; 2208 struct rum_tx_desc desc; 2209 struct mbuf *m0; 2210 2211 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2212 return; 2213 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2214 return; 2215 2216 m0 = ieee80211_beacon_alloc(vap->iv_bss, &vap->iv_bcn_off); 2217 if (m0 == NULL) 2218 return; 2219 2220 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2221 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2222 m0->m_pkthdr.len, tp->mgmtrate); 2223 2224 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2225 rum_write_multi(sc, RT2573_HW_BEACON_BASE0, (uint8_t *)&desc, 24); 2226 2227 /* copy beacon header and payload into NIC memory */ 2228 rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2229 m0->m_pkthdr.len); 2230 2231 m_freem(m0); 2232} 2233 2234static int 2235rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2236 const struct ieee80211_bpf_params *params) 2237{ 2238 struct rum_softc *sc = ni->ni_ic->ic_softc; 2239 int ret; 2240 2241 RUM_LOCK(sc); 2242 /* prevent management frames from being sent if we're not ready */ 2243 if (!sc->sc_running) { 2244 ret = ENETDOWN; 2245 goto bad; 2246 } 2247 if (sc->tx_nfree < RUM_TX_MINFREE) { 2248 ret = EIO; 2249 goto bad; 2250 } 2251 2252 if (params == NULL) { 2253 /* 2254 * Legacy path; interpret frame contents to decide 2255 * precisely how to send the frame. 2256 */ 2257 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 2258 goto bad; 2259 } else { 2260 /* 2261 * Caller supplied explicit parameters to use in 2262 * sending the frame. 2263 */ 2264 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 2265 goto bad; 2266 } 2267 RUM_UNLOCK(sc); 2268 2269 return 0; 2270bad: 2271 RUM_UNLOCK(sc); 2272 m_freem(m); 2273 ieee80211_free_node(ni); 2274 return ret; 2275} 2276 2277static void 2278rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2279{ 2280 struct ieee80211vap *vap = ni->ni_vap; 2281 struct rum_vap *rvp = RUM_VAP(vap); 2282 2283 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2284 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2285 2286 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2287} 2288 2289static void 2290rum_ratectl_timeout(void *arg) 2291{ 2292 struct rum_vap *rvp = arg; 2293 struct ieee80211vap *vap = &rvp->vap; 2294 struct ieee80211com *ic = vap->iv_ic; 2295 2296 ieee80211_runtask(ic, &rvp->ratectl_task); 2297} 2298 2299static void 2300rum_ratectl_task(void *arg, int pending) 2301{ 2302 struct rum_vap *rvp = arg; 2303 struct ieee80211vap *vap = &rvp->vap; 2304 struct ieee80211com *ic = vap->iv_ic; 2305 struct rum_softc *sc = ic->ic_softc; 2306 struct ieee80211_node *ni; 2307 int ok, fail; 2308 int sum, retrycnt; 2309 2310 RUM_LOCK(sc); 2311 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2312 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2313 2314 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2315 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2316 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2317 sum = ok+fail; 2318 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2319 2320 ni = ieee80211_ref_node(vap->iv_bss); 2321 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2322 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2323 ieee80211_free_node(ni); 2324 2325 /* count TX retry-fail as Tx errors */ 2326 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2327 2328 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2329 RUM_UNLOCK(sc); 2330} 2331 2332static void 2333rum_scan_start(struct ieee80211com *ic) 2334{ 2335 struct rum_softc *sc = ic->ic_softc; 2336 2337 RUM_LOCK(sc); 2338 rum_abort_tsf_sync(sc); 2339 rum_set_bssid(sc, ieee80211broadcastaddr); 2340 RUM_UNLOCK(sc); 2341 2342} 2343 2344static void 2345rum_scan_end(struct ieee80211com *ic) 2346{ 2347 struct rum_softc *sc = ic->ic_softc; 2348 2349 RUM_LOCK(sc); 2350 rum_enable_tsf_sync(sc); 2351 rum_set_bssid(sc, ic->ic_macaddr); 2352 RUM_UNLOCK(sc); 2353 2354} 2355 2356static void 2357rum_set_channel(struct ieee80211com *ic) 2358{ 2359 struct rum_softc *sc = ic->ic_softc; 2360 2361 RUM_LOCK(sc); 2362 rum_set_chan(sc, ic->ic_curchan); 2363 RUM_UNLOCK(sc); 2364} 2365 2366static int 2367rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2368{ 2369 struct ieee80211com *ic = &sc->sc_ic; 2370 int lna, agc, rssi; 2371 2372 lna = (raw >> 5) & 0x3; 2373 agc = raw & 0x1f; 2374 2375 if (lna == 0) { 2376 /* 2377 * No RSSI mapping 2378 * 2379 * NB: Since RSSI is relative to noise floor, -1 is 2380 * adequate for caller to know error happened. 2381 */ 2382 return -1; 2383 } 2384 2385 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2386 2387 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2388 rssi += sc->rssi_2ghz_corr; 2389 2390 if (lna == 1) 2391 rssi -= 64; 2392 else if (lna == 2) 2393 rssi -= 74; 2394 else if (lna == 3) 2395 rssi -= 90; 2396 } else { 2397 rssi += sc->rssi_5ghz_corr; 2398 2399 if (!sc->ext_5ghz_lna && lna != 1) 2400 rssi += 4; 2401 2402 if (lna == 1) 2403 rssi -= 64; 2404 else if (lna == 2) 2405 rssi -= 86; 2406 else if (lna == 3) 2407 rssi -= 100; 2408 } 2409 return rssi; 2410} 2411 2412static int 2413rum_pause(struct rum_softc *sc, int timeout) 2414{ 2415 2416 usb_pause_mtx(&sc->sc_mtx, timeout); 2417 return (0); 2418} 2419 2420static device_method_t rum_methods[] = { 2421 /* Device interface */ 2422 DEVMETHOD(device_probe, rum_match), 2423 DEVMETHOD(device_attach, rum_attach), 2424 DEVMETHOD(device_detach, rum_detach), 2425 DEVMETHOD_END 2426}; 2427 2428static driver_t rum_driver = { 2429 .name = "rum", 2430 .methods = rum_methods, 2431 .size = sizeof(struct rum_softc), 2432}; 2433 2434static devclass_t rum_devclass; 2435 2436DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2437MODULE_DEPEND(rum, wlan, 1, 1, 1); 2438MODULE_DEPEND(rum, usb, 1, 1, 1); 2439MODULE_VERSION(rum, 1); 2440