if_rum.c revision 288622
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288622 2015-10-03 17:34:11Z 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 288622 2015-10-03 17:34:11Z 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 int 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 int 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_AHDEMO /* adhoc demo mode */ 493 | IEEE80211_C_TXPMGT /* tx power management */ 494 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 495 | IEEE80211_C_SHSLOT /* short slot time supported */ 496 | IEEE80211_C_BGSCAN /* bg scanning supported */ 497 | IEEE80211_C_WPA /* 802.11i */ 498 ; 499 500 bands = 0; 501 setbit(&bands, IEEE80211_MODE_11B); 502 setbit(&bands, IEEE80211_MODE_11G); 503 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 504 setbit(&bands, IEEE80211_MODE_11A); 505 ieee80211_init_channels(ic, NULL, &bands); 506 507 ieee80211_ifattach(ic); 508 ic->ic_update_promisc = rum_update_promisc; 509 ic->ic_raw_xmit = rum_raw_xmit; 510 ic->ic_scan_start = rum_scan_start; 511 ic->ic_scan_end = rum_scan_end; 512 ic->ic_set_channel = rum_set_channel; 513 ic->ic_transmit = rum_transmit; 514 ic->ic_parent = rum_parent; 515 ic->ic_vap_create = rum_vap_create; 516 ic->ic_vap_delete = rum_vap_delete; 517 ic->ic_update_mcast = rum_update_mcast; 518 519 ieee80211_radiotap_attach(ic, 520 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 521 RT2573_TX_RADIOTAP_PRESENT, 522 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 523 RT2573_RX_RADIOTAP_PRESENT); 524 525 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 526 527 if (bootverbose) 528 ieee80211_announce(ic); 529 530 return (0); 531 532detach: 533 rum_detach(self); 534 return (ENXIO); /* failure */ 535} 536 537static int 538rum_detach(device_t self) 539{ 540 struct rum_softc *sc = device_get_softc(self); 541 struct ieee80211com *ic = &sc->sc_ic; 542 543 /* Prevent further ioctls */ 544 RUM_LOCK(sc); 545 sc->sc_detached = 1; 546 RUM_UNLOCK(sc); 547 548 /* stop all USB transfers */ 549 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 550 551 /* free TX list, if any */ 552 RUM_LOCK(sc); 553 rum_unsetup_tx_list(sc); 554 RUM_UNLOCK(sc); 555 556 if (ic->ic_softc == sc) { 557 ieee80211_draintask(ic, &sc->cmdq_task); 558 ieee80211_ifdetach(ic); 559 } 560 561 mbufq_drain(&sc->sc_snd); 562 RUM_CMDQ_LOCK_DESTROY(sc); 563 RUM_LOCK_DESTROY(sc); 564 565 return (0); 566} 567 568static usb_error_t 569rum_do_request(struct rum_softc *sc, 570 struct usb_device_request *req, void *data) 571{ 572 usb_error_t err; 573 int ntries = 10; 574 575 while (ntries--) { 576 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 577 req, data, 0, NULL, 250 /* ms */); 578 if (err == 0) 579 break; 580 581 DPRINTFN(1, "Control request failed, %s (retrying)\n", 582 usbd_errstr(err)); 583 if (rum_pause(sc, hz / 100)) 584 break; 585 } 586 return (err); 587} 588 589static struct ieee80211vap * 590rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 591 enum ieee80211_opmode opmode, int flags, 592 const uint8_t bssid[IEEE80211_ADDR_LEN], 593 const uint8_t mac[IEEE80211_ADDR_LEN]) 594{ 595 struct rum_softc *sc = ic->ic_softc; 596 struct rum_vap *rvp; 597 struct ieee80211vap *vap; 598 599 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 600 return NULL; 601 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 602 vap = &rvp->vap; 603 /* enable s/w bmiss handling for sta mode */ 604 605 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 606 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 607 /* out of memory */ 608 free(rvp, M_80211_VAP); 609 return (NULL); 610 } 611 612 /* override state transition machine */ 613 rvp->newstate = vap->iv_newstate; 614 vap->iv_newstate = rum_newstate; 615 616 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 617 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 618 ieee80211_ratectl_init(vap); 619 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 620 /* complete setup */ 621 ieee80211_vap_attach(vap, ieee80211_media_change, 622 ieee80211_media_status, mac); 623 ic->ic_opmode = opmode; 624 return vap; 625} 626 627static void 628rum_vap_delete(struct ieee80211vap *vap) 629{ 630 struct rum_vap *rvp = RUM_VAP(vap); 631 struct ieee80211com *ic = vap->iv_ic; 632 633 usb_callout_drain(&rvp->ratectl_ch); 634 ieee80211_draintask(ic, &rvp->ratectl_task); 635 ieee80211_ratectl_deinit(vap); 636 ieee80211_vap_detach(vap); 637 free(rvp, M_80211_VAP); 638} 639 640static void 641rum_cmdq_cb(void *arg, int pending) 642{ 643 struct rum_softc *sc = arg; 644 struct rum_cmdq *rc; 645 646 RUM_CMDQ_LOCK(sc); 647 while (sc->cmdq[sc->cmdq_first].func != NULL) { 648 rc = &sc->cmdq[sc->cmdq_first]; 649 RUM_CMDQ_UNLOCK(sc); 650 651 RUM_LOCK(sc); 652 rc->func(sc, &rc->data, rc->rn_id, rc->rvp_id); 653 RUM_UNLOCK(sc); 654 655 RUM_CMDQ_LOCK(sc); 656 memset(rc, 0, sizeof (*rc)); 657 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 658 } 659 RUM_CMDQ_UNLOCK(sc); 660} 661 662static int 663rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 664 uint8_t rn_id, uint8_t rvp_id, CMD_FUNC_PROTO) 665{ 666 struct ieee80211com *ic = &sc->sc_ic; 667 668 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 669 670 RUM_CMDQ_LOCK(sc); 671 if (sc->cmdq[sc->cmdq_last].func != NULL) { 672 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 673 RUM_CMDQ_UNLOCK(sc); 674 675 return EAGAIN; 676 } 677 678 if (ptr != NULL) 679 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 680 sc->cmdq[sc->cmdq_last].rn_id = rn_id; 681 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 682 sc->cmdq[sc->cmdq_last].func = func; 683 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 684 RUM_CMDQ_UNLOCK(sc); 685 686 ieee80211_runtask(ic, &sc->cmdq_task); 687 688 return 0; 689} 690 691static void 692rum_tx_free(struct rum_tx_data *data, int txerr) 693{ 694 struct rum_softc *sc = data->sc; 695 696 if (data->m != NULL) { 697 ieee80211_tx_complete(data->ni, data->m, txerr); 698 data->m = NULL; 699 data->ni = NULL; 700 } 701 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 702 sc->tx_nfree++; 703} 704 705static void 706rum_setup_tx_list(struct rum_softc *sc) 707{ 708 struct rum_tx_data *data; 709 int i; 710 711 sc->tx_nfree = 0; 712 STAILQ_INIT(&sc->tx_q); 713 STAILQ_INIT(&sc->tx_free); 714 715 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 716 data = &sc->tx_data[i]; 717 718 data->sc = sc; 719 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 720 sc->tx_nfree++; 721 } 722} 723 724static void 725rum_unsetup_tx_list(struct rum_softc *sc) 726{ 727 struct rum_tx_data *data; 728 int i; 729 730 /* make sure any subsequent use of the queues will fail */ 731 sc->tx_nfree = 0; 732 STAILQ_INIT(&sc->tx_q); 733 STAILQ_INIT(&sc->tx_free); 734 735 /* free up all node references and mbufs */ 736 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 737 data = &sc->tx_data[i]; 738 739 if (data->m != NULL) { 740 m_freem(data->m); 741 data->m = NULL; 742 } 743 if (data->ni != NULL) { 744 ieee80211_free_node(data->ni); 745 data->ni = NULL; 746 } 747 } 748} 749 750static int 751rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 752{ 753 struct rum_vap *rvp = RUM_VAP(vap); 754 struct ieee80211com *ic = vap->iv_ic; 755 struct rum_softc *sc = ic->ic_softc; 756 const struct ieee80211_txparam *tp; 757 enum ieee80211_state ostate; 758 struct ieee80211_node *ni; 759 int ret; 760 761 ostate = vap->iv_state; 762 DPRINTF("%s -> %s\n", 763 ieee80211_state_name[ostate], 764 ieee80211_state_name[nstate]); 765 766 IEEE80211_UNLOCK(ic); 767 RUM_LOCK(sc); 768 usb_callout_stop(&rvp->ratectl_ch); 769 770 switch (nstate) { 771 case IEEE80211_S_INIT: 772 if (ostate == IEEE80211_S_RUN) 773 rum_abort_tsf_sync(sc); 774 775 break; 776 777 case IEEE80211_S_RUN: 778 ni = ieee80211_ref_node(vap->iv_bss); 779 780 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 781 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 782 ret = EINVAL; 783 goto run_fail; 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(sc->sc_bssid, ni->ni_bssid); 790 rum_set_bssid(sc, sc->sc_bssid); 791 } 792 793 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 794 vap->iv_opmode == IEEE80211_M_IBSS) { 795 if ((ret = rum_prepare_beacon(sc, vap)) != 0) 796 goto run_fail; 797 } 798 799 if (vap->iv_opmode != IEEE80211_M_MONITOR && 800 vap->iv_opmode != IEEE80211_M_AHDEMO) { 801 if ((ret = rum_enable_tsf_sync(sc)) != 0) 802 goto run_fail; 803 } else 804 rum_enable_tsf(sc); 805 806 /* enable automatic rate adaptation */ 807 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 808 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 809 rum_ratectl_start(sc, ni); 810 ieee80211_free_node(ni); 811 break; 812 default: 813 break; 814 } 815 RUM_UNLOCK(sc); 816 IEEE80211_LOCK(ic); 817 return (rvp->newstate(vap, nstate, arg)); 818 819run_fail: 820 RUM_UNLOCK(sc); 821 IEEE80211_LOCK(ic); 822 ieee80211_free_node(ni); 823 return ret; 824} 825 826static void 827rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 828{ 829 struct rum_softc *sc = usbd_xfer_softc(xfer); 830 struct ieee80211vap *vap; 831 struct rum_tx_data *data; 832 struct mbuf *m; 833 struct usb_page_cache *pc; 834 unsigned int len; 835 int actlen, sumlen; 836 837 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 838 839 switch (USB_GET_STATE(xfer)) { 840 case USB_ST_TRANSFERRED: 841 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 842 843 /* free resources */ 844 data = usbd_xfer_get_priv(xfer); 845 rum_tx_free(data, 0); 846 usbd_xfer_set_priv(xfer, NULL); 847 848 /* FALLTHROUGH */ 849 case USB_ST_SETUP: 850tr_setup: 851 data = STAILQ_FIRST(&sc->tx_q); 852 if (data) { 853 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 854 m = data->m; 855 856 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 857 DPRINTFN(0, "data overflow, %u bytes\n", 858 m->m_pkthdr.len); 859 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 860 } 861 pc = usbd_xfer_get_frame(xfer, 0); 862 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 863 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 864 m->m_pkthdr.len); 865 866 vap = data->ni->ni_vap; 867 if (ieee80211_radiotap_active_vap(vap)) { 868 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 869 870 tap->wt_flags = 0; 871 tap->wt_rate = data->rate; 872 rum_get_tsf(sc, &tap->wt_tsf); 873 tap->wt_antenna = sc->tx_ant; 874 875 ieee80211_radiotap_tx(vap, m); 876 } 877 878 /* align end on a 4-bytes boundary */ 879 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 880 if ((len % 64) == 0) 881 len += 4; 882 883 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 884 m->m_pkthdr.len, len); 885 886 usbd_xfer_set_frame_len(xfer, 0, len); 887 usbd_xfer_set_priv(xfer, data); 888 889 usbd_transfer_submit(xfer); 890 } 891 rum_start(sc); 892 break; 893 894 default: /* Error */ 895 DPRINTFN(11, "transfer error, %s\n", 896 usbd_errstr(error)); 897 898 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 899 data = usbd_xfer_get_priv(xfer); 900 if (data != NULL) { 901 rum_tx_free(data, error); 902 usbd_xfer_set_priv(xfer, NULL); 903 } 904 905 if (error != USB_ERR_CANCELLED) { 906 if (error == USB_ERR_TIMEOUT) 907 device_printf(sc->sc_dev, "device timeout\n"); 908 909 /* 910 * Try to clear stall first, also if other 911 * errors occur, hence clearing stall 912 * introduces a 50 ms delay: 913 */ 914 usbd_xfer_set_stall(xfer); 915 goto tr_setup; 916 } 917 break; 918 } 919} 920 921static void 922rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 923{ 924 struct rum_softc *sc = usbd_xfer_softc(xfer); 925 struct ieee80211com *ic = &sc->sc_ic; 926 struct ieee80211_frame_min *wh; 927 struct ieee80211_node *ni; 928 struct mbuf *m = NULL; 929 struct usb_page_cache *pc; 930 uint32_t flags; 931 uint8_t rssi = 0; 932 int len; 933 934 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 935 936 switch (USB_GET_STATE(xfer)) { 937 case USB_ST_TRANSFERRED: 938 939 DPRINTFN(15, "rx done, actlen=%d\n", len); 940 941 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 942 DPRINTF("%s: xfer too short %d\n", 943 device_get_nameunit(sc->sc_dev), len); 944 counter_u64_add(ic->ic_ierrors, 1); 945 goto tr_setup; 946 } 947 948 len -= RT2573_RX_DESC_SIZE; 949 pc = usbd_xfer_get_frame(xfer, 0); 950 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 951 952 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 953 flags = le32toh(sc->sc_rx_desc.flags); 954 if (flags & RT2573_RX_CRC_ERROR) { 955 /* 956 * This should not happen since we did not 957 * request to receive those frames when we 958 * filled RUM_TXRX_CSR2: 959 */ 960 DPRINTFN(5, "PHY or CRC error\n"); 961 counter_u64_add(ic->ic_ierrors, 1); 962 goto tr_setup; 963 } 964 965 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 966 if (m == NULL) { 967 DPRINTF("could not allocate mbuf\n"); 968 counter_u64_add(ic->ic_ierrors, 1); 969 goto tr_setup; 970 } 971 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 972 mtod(m, uint8_t *), len); 973 974 wh = mtod(m, struct ieee80211_frame_min *); 975 976 /* finalize mbuf */ 977 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 978 979 if (ieee80211_radiotap_active(ic)) { 980 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 981 982 tap->wr_flags = 0; 983 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 984 (flags & RT2573_RX_OFDM) ? 985 IEEE80211_T_OFDM : IEEE80211_T_CCK); 986 rum_get_tsf(sc, &tap->wr_tsf); 987 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 988 tap->wr_antnoise = RT2573_NOISE_FLOOR; 989 tap->wr_antenna = sc->rx_ant; 990 } 991 /* FALLTHROUGH */ 992 case USB_ST_SETUP: 993tr_setup: 994 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 995 usbd_transfer_submit(xfer); 996 997 /* 998 * At the end of a USB callback it is always safe to unlock 999 * the private mutex of a device! That is why we do the 1000 * "ieee80211_input" here, and not some lines up! 1001 */ 1002 RUM_UNLOCK(sc); 1003 if (m) { 1004 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1005 ni = ieee80211_find_rxnode(ic, wh); 1006 else 1007 ni = NULL; 1008 1009 if (ni != NULL) { 1010 (void) ieee80211_input(ni, m, rssi, 1011 RT2573_NOISE_FLOOR); 1012 ieee80211_free_node(ni); 1013 } else 1014 (void) ieee80211_input_all(ic, m, rssi, 1015 RT2573_NOISE_FLOOR); 1016 } 1017 RUM_LOCK(sc); 1018 rum_start(sc); 1019 return; 1020 1021 default: /* Error */ 1022 if (error != USB_ERR_CANCELLED) { 1023 /* try to clear stall first */ 1024 usbd_xfer_set_stall(xfer); 1025 goto tr_setup; 1026 } 1027 return; 1028 } 1029} 1030 1031static uint8_t 1032rum_plcp_signal(int rate) 1033{ 1034 switch (rate) { 1035 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1036 case 12: return 0xb; 1037 case 18: return 0xf; 1038 case 24: return 0xa; 1039 case 36: return 0xe; 1040 case 48: return 0x9; 1041 case 72: return 0xd; 1042 case 96: return 0x8; 1043 case 108: return 0xc; 1044 1045 /* CCK rates (NB: not IEEE std, device-specific) */ 1046 case 2: return 0x0; 1047 case 4: return 0x1; 1048 case 11: return 0x2; 1049 case 22: return 0x3; 1050 } 1051 return 0xff; /* XXX unsupported/unknown rate */ 1052} 1053 1054static void 1055rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1056 uint32_t flags, uint16_t xflags, int len, int rate) 1057{ 1058 struct ieee80211com *ic = &sc->sc_ic; 1059 uint16_t plcp_length; 1060 int remainder; 1061 1062 desc->flags = htole32(flags); 1063 desc->flags |= htole32(RT2573_TX_VALID); 1064 desc->flags |= htole32(len << 16); 1065 1066 desc->xflags = htole16(xflags); 1067 1068 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1069 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1070 1071 /* setup PLCP fields */ 1072 desc->plcp_signal = rum_plcp_signal(rate); 1073 desc->plcp_service = 4; 1074 1075 len += IEEE80211_CRC_LEN; 1076 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1077 desc->flags |= htole32(RT2573_TX_OFDM); 1078 1079 plcp_length = len & 0xfff; 1080 desc->plcp_length_hi = plcp_length >> 6; 1081 desc->plcp_length_lo = plcp_length & 0x3f; 1082 } else { 1083 if (rate == 0) 1084 rate = 2; /* avoid division by zero */ 1085 plcp_length = (16 * len + rate - 1) / rate; 1086 if (rate == 22) { 1087 remainder = (16 * len) % 22; 1088 if (remainder != 0 && remainder < 7) 1089 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1090 } 1091 desc->plcp_length_hi = plcp_length >> 8; 1092 desc->plcp_length_lo = plcp_length & 0xff; 1093 1094 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1095 desc->plcp_signal |= 0x08; 1096 } 1097} 1098 1099static int 1100rum_sendprot(struct rum_softc *sc, 1101 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1102{ 1103 struct ieee80211com *ic = ni->ni_ic; 1104 const struct ieee80211_frame *wh; 1105 struct rum_tx_data *data; 1106 struct mbuf *mprot; 1107 int protrate, pktlen, flags, isshort; 1108 uint16_t dur; 1109 1110 RUM_LOCK_ASSERT(sc); 1111 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1112 ("protection %d", prot)); 1113 1114 wh = mtod(m, const struct ieee80211_frame *); 1115 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1116 1117 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1118 1119 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1120 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1121 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1122 flags = RT2573_TX_MORE_FRAG; 1123 if (prot == IEEE80211_PROT_RTSCTS) { 1124 /* NB: CTS is the same size as an ACK */ 1125 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1126 flags |= RT2573_TX_NEED_ACK; 1127 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1128 } else { 1129 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1130 } 1131 if (mprot == NULL) { 1132 /* XXX stat + msg */ 1133 return (ENOBUFS); 1134 } 1135 data = STAILQ_FIRST(&sc->tx_free); 1136 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1137 sc->tx_nfree--; 1138 1139 data->m = mprot; 1140 data->ni = ieee80211_ref_node(ni); 1141 data->rate = protrate; 1142 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1143 1144 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1145 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1146 1147 return 0; 1148} 1149 1150static int 1151rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1152{ 1153 struct ieee80211vap *vap = ni->ni_vap; 1154 struct ieee80211com *ic = &sc->sc_ic; 1155 struct rum_tx_data *data; 1156 struct ieee80211_frame *wh; 1157 const struct ieee80211_txparam *tp; 1158 struct ieee80211_key *k; 1159 uint32_t flags = 0; 1160 uint16_t dur; 1161 1162 RUM_LOCK_ASSERT(sc); 1163 1164 data = STAILQ_FIRST(&sc->tx_free); 1165 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1166 sc->tx_nfree--; 1167 1168 wh = mtod(m0, struct ieee80211_frame *); 1169 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1170 k = ieee80211_crypto_encap(ni, m0); 1171 if (k == NULL) 1172 return (ENOBUFS); 1173 1174 wh = mtod(m0, struct ieee80211_frame *); 1175 } 1176 1177 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1178 1179 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1180 flags |= RT2573_TX_NEED_ACK; 1181 1182 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1183 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1184 USETW(wh->i_dur, dur); 1185 1186 /* tell hardware to add timestamp for probe responses */ 1187 if ((wh->i_fc[0] & 1188 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1189 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1190 flags |= RT2573_TX_TIMESTAMP; 1191 } 1192 1193 data->m = m0; 1194 data->ni = ni; 1195 data->rate = tp->mgmtrate; 1196 1197 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1198 1199 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1200 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1201 1202 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1203 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1204 1205 return (0); 1206} 1207 1208static int 1209rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1210 const struct ieee80211_bpf_params *params) 1211{ 1212 struct ieee80211com *ic = ni->ni_ic; 1213 struct rum_tx_data *data; 1214 uint32_t flags; 1215 int rate, error; 1216 1217 RUM_LOCK_ASSERT(sc); 1218 1219 rate = params->ibp_rate0; 1220 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1221 return (EINVAL); 1222 1223 flags = 0; 1224 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1225 flags |= RT2573_TX_NEED_ACK; 1226 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1227 error = rum_sendprot(sc, m0, ni, 1228 params->ibp_flags & IEEE80211_BPF_RTS ? 1229 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1230 rate); 1231 if (error || sc->tx_nfree == 0) 1232 return (ENOBUFS); 1233 1234 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1235 } 1236 1237 data = STAILQ_FIRST(&sc->tx_free); 1238 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1239 sc->tx_nfree--; 1240 1241 data->m = m0; 1242 data->ni = ni; 1243 data->rate = rate; 1244 1245 /* XXX need to setup descriptor ourself */ 1246 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1247 1248 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1249 m0->m_pkthdr.len, rate); 1250 1251 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1252 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1253 1254 return 0; 1255} 1256 1257static int 1258rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1259{ 1260 struct ieee80211vap *vap = ni->ni_vap; 1261 struct ieee80211com *ic = &sc->sc_ic; 1262 struct rum_tx_data *data; 1263 struct ieee80211_frame *wh; 1264 const struct ieee80211_txparam *tp; 1265 struct ieee80211_key *k; 1266 uint32_t flags = 0; 1267 uint16_t dur; 1268 int error, rate; 1269 1270 RUM_LOCK_ASSERT(sc); 1271 1272 wh = mtod(m0, struct ieee80211_frame *); 1273 1274 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1275 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1276 rate = tp->mcastrate; 1277 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1278 rate = tp->ucastrate; 1279 else 1280 rate = ni->ni_txrate; 1281 1282 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1283 k = ieee80211_crypto_encap(ni, m0); 1284 if (k == NULL) { 1285 m_freem(m0); 1286 return ENOBUFS; 1287 } 1288 1289 /* packet header may have moved, reset our local pointer */ 1290 wh = mtod(m0, struct ieee80211_frame *); 1291 } 1292 1293 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1294 int prot = IEEE80211_PROT_NONE; 1295 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1296 prot = IEEE80211_PROT_RTSCTS; 1297 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1298 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1299 prot = ic->ic_protmode; 1300 if (prot != IEEE80211_PROT_NONE) { 1301 error = rum_sendprot(sc, m0, ni, prot, rate); 1302 if (error || sc->tx_nfree == 0) { 1303 m_freem(m0); 1304 return ENOBUFS; 1305 } 1306 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1307 } 1308 } 1309 1310 data = STAILQ_FIRST(&sc->tx_free); 1311 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1312 sc->tx_nfree--; 1313 1314 data->m = m0; 1315 data->ni = ni; 1316 data->rate = rate; 1317 1318 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1319 flags |= RT2573_TX_NEED_ACK; 1320 flags |= RT2573_TX_MORE_FRAG; 1321 1322 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1323 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1324 USETW(wh->i_dur, dur); 1325 } 1326 1327 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1328 1329 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1330 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1331 1332 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1333 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1334 1335 return 0; 1336} 1337 1338static int 1339rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1340{ 1341 struct rum_softc *sc = ic->ic_softc; 1342 int error; 1343 1344 RUM_LOCK(sc); 1345 if (!sc->sc_running) { 1346 RUM_UNLOCK(sc); 1347 return (ENXIO); 1348 } 1349 error = mbufq_enqueue(&sc->sc_snd, m); 1350 if (error) { 1351 RUM_UNLOCK(sc); 1352 return (error); 1353 } 1354 rum_start(sc); 1355 RUM_UNLOCK(sc); 1356 1357 return (0); 1358} 1359 1360static void 1361rum_start(struct rum_softc *sc) 1362{ 1363 struct ieee80211_node *ni; 1364 struct mbuf *m; 1365 1366 RUM_LOCK_ASSERT(sc); 1367 1368 if (!sc->sc_running) 1369 return; 1370 1371 while (sc->tx_nfree >= RUM_TX_MINFREE && 1372 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1373 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1374 if (rum_tx_data(sc, m, ni) != 0) { 1375 if_inc_counter(ni->ni_vap->iv_ifp, 1376 IFCOUNTER_OERRORS, 1); 1377 ieee80211_free_node(ni); 1378 break; 1379 } 1380 } 1381} 1382 1383static void 1384rum_parent(struct ieee80211com *ic) 1385{ 1386 struct rum_softc *sc = ic->ic_softc; 1387 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1388 1389 RUM_LOCK(sc); 1390 if (sc->sc_detached) { 1391 RUM_UNLOCK(sc); 1392 return; 1393 } 1394 RUM_UNLOCK(sc); 1395 1396 if (ic->ic_nrunning > 0) { 1397 if (rum_init(sc) == 0) 1398 ieee80211_start_all(ic); 1399 else 1400 ieee80211_stop(vap); 1401 } else 1402 rum_stop(sc); 1403} 1404 1405static void 1406rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1407{ 1408 struct usb_device_request req; 1409 usb_error_t error; 1410 1411 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1412 req.bRequest = RT2573_READ_EEPROM; 1413 USETW(req.wValue, 0); 1414 USETW(req.wIndex, addr); 1415 USETW(req.wLength, len); 1416 1417 error = rum_do_request(sc, &req, buf); 1418 if (error != 0) { 1419 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1420 usbd_errstr(error)); 1421 } 1422} 1423 1424static uint32_t 1425rum_read(struct rum_softc *sc, uint16_t reg) 1426{ 1427 uint32_t val; 1428 1429 rum_read_multi(sc, reg, &val, sizeof val); 1430 1431 return le32toh(val); 1432} 1433 1434static void 1435rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1436{ 1437 struct usb_device_request req; 1438 usb_error_t error; 1439 1440 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1441 req.bRequest = RT2573_READ_MULTI_MAC; 1442 USETW(req.wValue, 0); 1443 USETW(req.wIndex, reg); 1444 USETW(req.wLength, len); 1445 1446 error = rum_do_request(sc, &req, buf); 1447 if (error != 0) { 1448 device_printf(sc->sc_dev, 1449 "could not multi read MAC register: %s\n", 1450 usbd_errstr(error)); 1451 } 1452} 1453 1454static usb_error_t 1455rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1456{ 1457 uint32_t tmp = htole32(val); 1458 1459 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1460} 1461 1462static usb_error_t 1463rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1464{ 1465 struct usb_device_request req; 1466 usb_error_t error; 1467 size_t offset; 1468 1469 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1470 req.bRequest = RT2573_WRITE_MULTI_MAC; 1471 USETW(req.wValue, 0); 1472 1473 /* write at most 64 bytes at a time */ 1474 for (offset = 0; offset < len; offset += 64) { 1475 USETW(req.wIndex, reg + offset); 1476 USETW(req.wLength, MIN(len - offset, 64)); 1477 1478 error = rum_do_request(sc, &req, (char *)buf + offset); 1479 if (error != 0) { 1480 device_printf(sc->sc_dev, 1481 "could not multi write MAC register: %s\n", 1482 usbd_errstr(error)); 1483 return (error); 1484 } 1485 } 1486 1487 return (USB_ERR_NORMAL_COMPLETION); 1488} 1489 1490static usb_error_t 1491rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1492{ 1493 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1494} 1495 1496static usb_error_t 1497rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1498{ 1499 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1500} 1501 1502static usb_error_t 1503rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1504{ 1505 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1506} 1507 1508static int 1509rum_bbp_busy(struct rum_softc *sc) 1510{ 1511 int ntries; 1512 1513 for (ntries = 0; ntries < 100; ntries++) { 1514 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1515 break; 1516 if (rum_pause(sc, hz / 100)) 1517 break; 1518 } 1519 if (ntries == 100) 1520 return (ETIMEDOUT); 1521 1522 return (0); 1523} 1524 1525static void 1526rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1527{ 1528 uint32_t tmp; 1529 1530 DPRINTFN(2, "reg=0x%08x\n", reg); 1531 1532 if (rum_bbp_busy(sc) != 0) { 1533 device_printf(sc->sc_dev, "could not write to BBP\n"); 1534 return; 1535 } 1536 1537 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1538 rum_write(sc, RT2573_PHY_CSR3, tmp); 1539} 1540 1541static uint8_t 1542rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1543{ 1544 uint32_t val; 1545 int ntries; 1546 1547 DPRINTFN(2, "reg=0x%08x\n", reg); 1548 1549 if (rum_bbp_busy(sc) != 0) { 1550 device_printf(sc->sc_dev, "could not read BBP\n"); 1551 return 0; 1552 } 1553 1554 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1555 rum_write(sc, RT2573_PHY_CSR3, val); 1556 1557 for (ntries = 0; ntries < 100; ntries++) { 1558 val = rum_read(sc, RT2573_PHY_CSR3); 1559 if (!(val & RT2573_BBP_BUSY)) 1560 return val & 0xff; 1561 if (rum_pause(sc, hz / 100)) 1562 break; 1563 } 1564 1565 device_printf(sc->sc_dev, "could not read BBP\n"); 1566 return 0; 1567} 1568 1569static void 1570rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1571{ 1572 uint32_t tmp; 1573 int ntries; 1574 1575 for (ntries = 0; ntries < 100; ntries++) { 1576 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1577 break; 1578 if (rum_pause(sc, hz / 100)) 1579 break; 1580 } 1581 if (ntries == 100) { 1582 device_printf(sc->sc_dev, "could not write to RF\n"); 1583 return; 1584 } 1585 1586 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1587 (reg & 3); 1588 rum_write(sc, RT2573_PHY_CSR4, tmp); 1589 1590 /* remember last written value in sc */ 1591 sc->rf_regs[reg] = val; 1592 1593 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1594} 1595 1596static void 1597rum_select_antenna(struct rum_softc *sc) 1598{ 1599 uint8_t bbp4, bbp77; 1600 uint32_t tmp; 1601 1602 bbp4 = rum_bbp_read(sc, 4); 1603 bbp77 = rum_bbp_read(sc, 77); 1604 1605 /* TBD */ 1606 1607 /* make sure Rx is disabled before switching antenna */ 1608 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1609 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1610 1611 rum_bbp_write(sc, 4, bbp4); 1612 rum_bbp_write(sc, 77, bbp77); 1613 1614 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1615} 1616 1617/* 1618 * Enable multi-rate retries for frames sent at OFDM rates. 1619 * In 802.11b/g mode, allow fallback to CCK rates. 1620 */ 1621static void 1622rum_enable_mrr(struct rum_softc *sc) 1623{ 1624 struct ieee80211com *ic = &sc->sc_ic; 1625 1626 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1627 rum_setbits(sc, RT2573_TXRX_CSR4, 1628 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1629 } else { 1630 rum_modbits(sc, RT2573_TXRX_CSR4, 1631 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1632 } 1633} 1634 1635static void 1636rum_set_txpreamble(struct rum_softc *sc) 1637{ 1638 struct ieee80211com *ic = &sc->sc_ic; 1639 1640 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1641 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1642 else 1643 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1644} 1645 1646static void 1647rum_set_basicrates(struct rum_softc *sc) 1648{ 1649 struct ieee80211com *ic = &sc->sc_ic; 1650 1651 /* update basic rate set */ 1652 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1653 /* 11b basic rates: 1, 2Mbps */ 1654 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1655 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1656 /* 11a basic rates: 6, 12, 24Mbps */ 1657 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1658 } else { 1659 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1660 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1661 } 1662} 1663 1664/* 1665 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1666 * driver. 1667 */ 1668static void 1669rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1670{ 1671 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1672 1673 /* update all BBP registers that depend on the band */ 1674 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1675 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1676 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1677 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1678 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1679 } 1680 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1681 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1682 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1683 } 1684 1685 sc->bbp17 = bbp17; 1686 rum_bbp_write(sc, 17, bbp17); 1687 rum_bbp_write(sc, 96, bbp96); 1688 rum_bbp_write(sc, 104, bbp104); 1689 1690 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1691 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1692 rum_bbp_write(sc, 75, 0x80); 1693 rum_bbp_write(sc, 86, 0x80); 1694 rum_bbp_write(sc, 88, 0x80); 1695 } 1696 1697 rum_bbp_write(sc, 35, bbp35); 1698 rum_bbp_write(sc, 97, bbp97); 1699 rum_bbp_write(sc, 98, bbp98); 1700 1701 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1702 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1703 RT2573_PA_PE_5GHZ); 1704 } else { 1705 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1706 RT2573_PA_PE_2GHZ); 1707 } 1708} 1709 1710static void 1711rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1712{ 1713 struct ieee80211com *ic = &sc->sc_ic; 1714 const struct rfprog *rfprog; 1715 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1716 int8_t power; 1717 int i, chan; 1718 1719 chan = ieee80211_chan2ieee(ic, c); 1720 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1721 return; 1722 1723 /* select the appropriate RF settings based on what EEPROM says */ 1724 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1725 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1726 1727 /* find the settings for this channel (we know it exists) */ 1728 for (i = 0; rfprog[i].chan != chan; i++); 1729 1730 power = sc->txpow[i]; 1731 if (power < 0) { 1732 bbp94 += power; 1733 power = 0; 1734 } else if (power > 31) { 1735 bbp94 += power - 31; 1736 power = 31; 1737 } 1738 1739 /* 1740 * If we are switching from the 2GHz band to the 5GHz band or 1741 * vice-versa, BBP registers need to be reprogrammed. 1742 */ 1743 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1744 rum_select_band(sc, c); 1745 rum_select_antenna(sc); 1746 } 1747 ic->ic_curchan = c; 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_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1755 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1756 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1757 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1758 1759 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1760 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1761 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1762 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1763 1764 rum_pause(sc, hz / 100); 1765 1766 /* enable smart mode for MIMO-capable RFs */ 1767 bbp3 = rum_bbp_read(sc, 3); 1768 1769 bbp3 &= ~RT2573_SMART_MODE; 1770 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1771 bbp3 |= RT2573_SMART_MODE; 1772 1773 rum_bbp_write(sc, 3, bbp3); 1774 1775 if (bbp94 != RT2573_BBPR94_DEFAULT) 1776 rum_bbp_write(sc, 94, bbp94); 1777 1778 /* give the chip some extra time to do the switchover */ 1779 rum_pause(sc, hz / 100); 1780} 1781 1782/* 1783 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1784 * and HostAP operating modes. 1785 */ 1786static int 1787rum_enable_tsf_sync(struct rum_softc *sc) 1788{ 1789 struct ieee80211com *ic = &sc->sc_ic; 1790 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1791 uint32_t tmp; 1792 1793 if (vap->iv_opmode != IEEE80211_M_STA) { 1794 /* 1795 * Change default 16ms TBTT adjustment to 8ms. 1796 * Must be done before enabling beacon generation. 1797 */ 1798 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 1799 return EIO; 1800 } 1801 1802 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1803 1804 /* set beacon interval (in 1/16ms unit) */ 1805 tmp |= vap->iv_bss->ni_intval * 16; 1806 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1807 1808 switch (vap->iv_opmode) { 1809 case IEEE80211_M_STA: 1810 /* 1811 * Local TSF is always updated with remote TSF on beacon 1812 * reception. 1813 */ 1814 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 1815 break; 1816 case IEEE80211_M_IBSS: 1817 /* 1818 * Local TSF is updated with remote TSF on beacon reception 1819 * only if the remote TSF is greater than local TSF. 1820 */ 1821 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 1822 tmp |= RT2573_BCN_TX_EN; 1823 break; 1824 case IEEE80211_M_HOSTAP: 1825 /* SYNC with nobody */ 1826 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 1827 tmp |= RT2573_BCN_TX_EN; 1828 break; 1829 default: 1830 device_printf(sc->sc_dev, 1831 "Enabling TSF failed. undefined opmode %d\n", 1832 vap->iv_opmode); 1833 return EINVAL; 1834 } 1835 1836 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 1837 return EIO; 1838 1839 return 0; 1840} 1841 1842static void 1843rum_enable_tsf(struct rum_softc *sc) 1844{ 1845 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 1846 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 1847} 1848 1849static void 1850rum_abort_tsf_sync(struct rum_softc *sc) 1851{ 1852 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 1853} 1854 1855static void 1856rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 1857{ 1858 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 1859} 1860 1861static void 1862rum_update_slot(struct rum_softc *sc) 1863{ 1864 struct ieee80211com *ic = &sc->sc_ic; 1865 uint8_t slottime; 1866 1867 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1868 1869 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 1870 1871 DPRINTF("setting slot time to %uus\n", slottime); 1872} 1873 1874static void 1875rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1876{ 1877 1878 rum_write(sc, RT2573_MAC_CSR4, 1879 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 1880 rum_write(sc, RT2573_MAC_CSR5, 1881 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 1882} 1883 1884static void 1885rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1886{ 1887 1888 rum_write(sc, RT2573_MAC_CSR2, 1889 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 1890 rum_write(sc, RT2573_MAC_CSR3, 1891 addr[4] | addr[5] << 8 | 0xff << 16); 1892} 1893 1894static void 1895rum_setpromisc(struct rum_softc *sc) 1896{ 1897 struct ieee80211com *ic = &sc->sc_ic; 1898 1899 if (ic->ic_promisc == 0) 1900 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1901 else 1902 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1903 1904 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 1905 "entering" : "leaving"); 1906} 1907 1908static void 1909rum_update_promisc(struct ieee80211com *ic) 1910{ 1911 struct rum_softc *sc = ic->ic_softc; 1912 1913 RUM_LOCK(sc); 1914 if (sc->sc_running) 1915 rum_setpromisc(sc); 1916 RUM_UNLOCK(sc); 1917} 1918 1919static void 1920rum_update_mcast(struct ieee80211com *ic) 1921{ 1922 /* Ignore. */ 1923} 1924 1925static const char * 1926rum_get_rf(int rev) 1927{ 1928 switch (rev) { 1929 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1930 case RT2573_RF_2528: return "RT2528"; 1931 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1932 case RT2573_RF_5226: return "RT5226"; 1933 default: return "unknown"; 1934 } 1935} 1936 1937static void 1938rum_read_eeprom(struct rum_softc *sc) 1939{ 1940 uint16_t val; 1941#ifdef RUM_DEBUG 1942 int i; 1943#endif 1944 1945 /* read MAC address */ 1946 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 1947 1948 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1949 val = le16toh(val); 1950 sc->rf_rev = (val >> 11) & 0x1f; 1951 sc->hw_radio = (val >> 10) & 0x1; 1952 sc->rx_ant = (val >> 4) & 0x3; 1953 sc->tx_ant = (val >> 2) & 0x3; 1954 sc->nb_ant = val & 0x3; 1955 1956 DPRINTF("RF revision=%d\n", sc->rf_rev); 1957 1958 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1959 val = le16toh(val); 1960 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1961 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1962 1963 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1964 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1965 1966 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1967 val = le16toh(val); 1968 if ((val & 0xff) != 0xff) 1969 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1970 1971 /* Only [-10, 10] is valid */ 1972 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1973 sc->rssi_2ghz_corr = 0; 1974 1975 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1976 val = le16toh(val); 1977 if ((val & 0xff) != 0xff) 1978 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1979 1980 /* Only [-10, 10] is valid */ 1981 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1982 sc->rssi_5ghz_corr = 0; 1983 1984 if (sc->ext_2ghz_lna) 1985 sc->rssi_2ghz_corr -= 14; 1986 if (sc->ext_5ghz_lna) 1987 sc->rssi_5ghz_corr -= 14; 1988 1989 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1990 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1991 1992 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1993 val = le16toh(val); 1994 if ((val & 0xff) != 0xff) 1995 sc->rffreq = val & 0xff; 1996 1997 DPRINTF("RF freq=%d\n", sc->rffreq); 1998 1999 /* read Tx power for all a/b/g channels */ 2000 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2001 /* XXX default Tx power for 802.11a channels */ 2002 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2003#ifdef RUM_DEBUG 2004 for (i = 0; i < 14; i++) 2005 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2006#endif 2007 2008 /* read default values for BBP registers */ 2009 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2010#ifdef RUM_DEBUG 2011 for (i = 0; i < 14; i++) { 2012 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2013 continue; 2014 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2015 sc->bbp_prom[i].val); 2016 } 2017#endif 2018} 2019 2020static int 2021rum_bbp_wakeup(struct rum_softc *sc) 2022{ 2023 unsigned int ntries; 2024 2025 for (ntries = 0; ntries < 100; ntries++) { 2026 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2027 break; 2028 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2029 if (rum_pause(sc, hz / 100)) 2030 break; 2031 } 2032 if (ntries == 100) { 2033 device_printf(sc->sc_dev, 2034 "timeout waiting for BBP/RF to wakeup\n"); 2035 return (ETIMEDOUT); 2036 } 2037 2038 return (0); 2039} 2040 2041static int 2042rum_bbp_init(struct rum_softc *sc) 2043{ 2044 int i, ntries; 2045 2046 /* wait for BBP to be ready */ 2047 for (ntries = 0; ntries < 100; ntries++) { 2048 const uint8_t val = rum_bbp_read(sc, 0); 2049 if (val != 0 && val != 0xff) 2050 break; 2051 if (rum_pause(sc, hz / 100)) 2052 break; 2053 } 2054 if (ntries == 100) { 2055 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2056 return EIO; 2057 } 2058 2059 /* initialize BBP registers to default values */ 2060 for (i = 0; i < nitems(rum_def_bbp); i++) 2061 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2062 2063 /* write vendor-specific BBP values (from EEPROM) */ 2064 for (i = 0; i < 16; i++) { 2065 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2066 continue; 2067 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2068 } 2069 2070 return 0; 2071} 2072 2073static int 2074rum_init(struct rum_softc *sc) 2075{ 2076 struct ieee80211com *ic = &sc->sc_ic; 2077 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2078 uint32_t tmp; 2079 int i, ret; 2080 2081 RUM_LOCK(sc); 2082 if (sc->sc_running) { 2083 ret = 0; 2084 goto end; 2085 } 2086 2087 /* initialize MAC registers to default values */ 2088 for (i = 0; i < nitems(rum_def_mac); i++) 2089 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2090 2091 /* set host ready */ 2092 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2093 rum_write(sc, RT2573_MAC_CSR1, 0); 2094 2095 /* wait for BBP/RF to wakeup */ 2096 if ((ret = rum_bbp_wakeup(sc)) != 0) 2097 goto end; 2098 2099 if ((ret = rum_bbp_init(sc)) != 0) 2100 goto end; 2101 2102 /* select default channel */ 2103 rum_select_band(sc, ic->ic_curchan); 2104 rum_select_antenna(sc); 2105 rum_set_chan(sc, ic->ic_curchan); 2106 2107 /* clear STA registers */ 2108 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2109 2110 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2111 2112 /* initialize ASIC */ 2113 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2114 2115 /* 2116 * Allocate Tx and Rx xfer queues. 2117 */ 2118 rum_setup_tx_list(sc); 2119 2120 /* update Rx filter */ 2121 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2122 2123 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2124 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2125 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2126 RT2573_DROP_ACKCTS; 2127 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2128 tmp |= RT2573_DROP_TODS; 2129 if (ic->ic_promisc == 0) 2130 tmp |= RT2573_DROP_NOT_TO_ME; 2131 } 2132 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2133 2134 sc->sc_running = 1; 2135 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2136 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2137 2138end: RUM_UNLOCK(sc); 2139 2140 if (ret != 0) 2141 rum_stop(sc); 2142 2143 return ret; 2144} 2145 2146static void 2147rum_stop(struct rum_softc *sc) 2148{ 2149 2150 RUM_LOCK(sc); 2151 if (!sc->sc_running) { 2152 RUM_UNLOCK(sc); 2153 return; 2154 } 2155 sc->sc_running = 0; 2156 RUM_UNLOCK(sc); 2157 2158 /* 2159 * Drain the USB transfers, if not already drained: 2160 */ 2161 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2162 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2163 2164 RUM_LOCK(sc); 2165 rum_unsetup_tx_list(sc); 2166 2167 /* disable Rx */ 2168 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2169 2170 /* reset ASIC */ 2171 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2172 rum_write(sc, RT2573_MAC_CSR1, 0); 2173 RUM_UNLOCK(sc); 2174} 2175 2176static void 2177rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2178{ 2179 struct usb_device_request req; 2180 uint16_t reg = RT2573_MCU_CODE_BASE; 2181 usb_error_t err; 2182 2183 /* copy firmware image into NIC */ 2184 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2185 err = rum_write(sc, reg, UGETDW(ucode)); 2186 if (err) { 2187 /* firmware already loaded ? */ 2188 device_printf(sc->sc_dev, "Firmware load " 2189 "failure! (ignored)\n"); 2190 break; 2191 } 2192 } 2193 2194 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2195 req.bRequest = RT2573_MCU_CNTL; 2196 USETW(req.wValue, RT2573_MCU_RUN); 2197 USETW(req.wIndex, 0); 2198 USETW(req.wLength, 0); 2199 2200 err = rum_do_request(sc, &req, NULL); 2201 if (err != 0) { 2202 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2203 usbd_errstr(err)); 2204 } 2205 2206 /* give the chip some time to boot */ 2207 rum_pause(sc, hz / 8); 2208} 2209 2210static int 2211rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2212{ 2213 struct ieee80211com *ic = vap->iv_ic; 2214 const struct ieee80211_txparam *tp; 2215 struct rum_tx_desc desc; 2216 struct mbuf *m0; 2217 int ret = 0; 2218 2219 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2220 return EINVAL; 2221 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2222 return EINVAL; 2223 2224 m0 = ieee80211_beacon_alloc(vap->iv_bss, &vap->iv_bcn_off); 2225 if (m0 == NULL) 2226 return ENOMEM; 2227 2228 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2229 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2230 m0->m_pkthdr.len, tp->mgmtrate); 2231 2232 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2233 if ((ret = rum_write_multi(sc, RT2573_HW_BEACON_BASE0, 2234 (uint8_t *)&desc, 24)) != 0) { 2235 ret = EIO; 2236 goto end; 2237 } 2238 2239 /* copy beacon header and payload into NIC memory */ 2240 if ((ret = rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2241 m0->m_pkthdr.len)) != 0) 2242 ret = EIO; 2243 2244end: 2245 m_freem(m0); 2246 return ret; 2247} 2248 2249static int 2250rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2251 const struct ieee80211_bpf_params *params) 2252{ 2253 struct rum_softc *sc = ni->ni_ic->ic_softc; 2254 int ret; 2255 2256 RUM_LOCK(sc); 2257 /* prevent management frames from being sent if we're not ready */ 2258 if (!sc->sc_running) { 2259 ret = ENETDOWN; 2260 goto bad; 2261 } 2262 if (sc->tx_nfree < RUM_TX_MINFREE) { 2263 ret = EIO; 2264 goto bad; 2265 } 2266 2267 if (params == NULL) { 2268 /* 2269 * Legacy path; interpret frame contents to decide 2270 * precisely how to send the frame. 2271 */ 2272 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 2273 goto bad; 2274 } else { 2275 /* 2276 * Caller supplied explicit parameters to use in 2277 * sending the frame. 2278 */ 2279 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 2280 goto bad; 2281 } 2282 RUM_UNLOCK(sc); 2283 2284 return 0; 2285bad: 2286 RUM_UNLOCK(sc); 2287 m_freem(m); 2288 ieee80211_free_node(ni); 2289 return ret; 2290} 2291 2292static void 2293rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2294{ 2295 struct ieee80211vap *vap = ni->ni_vap; 2296 struct rum_vap *rvp = RUM_VAP(vap); 2297 2298 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2299 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2300 2301 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2302} 2303 2304static void 2305rum_ratectl_timeout(void *arg) 2306{ 2307 struct rum_vap *rvp = arg; 2308 struct ieee80211vap *vap = &rvp->vap; 2309 struct ieee80211com *ic = vap->iv_ic; 2310 2311 ieee80211_runtask(ic, &rvp->ratectl_task); 2312} 2313 2314static void 2315rum_ratectl_task(void *arg, int pending) 2316{ 2317 struct rum_vap *rvp = arg; 2318 struct ieee80211vap *vap = &rvp->vap; 2319 struct ieee80211com *ic = vap->iv_ic; 2320 struct rum_softc *sc = ic->ic_softc; 2321 struct ieee80211_node *ni; 2322 int ok, fail; 2323 int sum, retrycnt; 2324 2325 RUM_LOCK(sc); 2326 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2327 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2328 2329 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2330 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2331 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2332 sum = ok+fail; 2333 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2334 2335 ni = ieee80211_ref_node(vap->iv_bss); 2336 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2337 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2338 ieee80211_free_node(ni); 2339 2340 /* count TX retry-fail as Tx errors */ 2341 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2342 2343 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2344 RUM_UNLOCK(sc); 2345} 2346 2347static void 2348rum_scan_start(struct ieee80211com *ic) 2349{ 2350 struct rum_softc *sc = ic->ic_softc; 2351 2352 RUM_LOCK(sc); 2353 rum_abort_tsf_sync(sc); 2354 rum_set_bssid(sc, ieee80211broadcastaddr); 2355 RUM_UNLOCK(sc); 2356 2357} 2358 2359static void 2360rum_scan_end(struct ieee80211com *ic) 2361{ 2362 struct rum_softc *sc = ic->ic_softc; 2363 2364 RUM_LOCK(sc); 2365 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 2366 rum_enable_tsf_sync(sc); 2367 else 2368 rum_enable_tsf(sc); 2369 rum_set_bssid(sc, sc->sc_bssid); 2370 RUM_UNLOCK(sc); 2371 2372} 2373 2374static void 2375rum_set_channel(struct ieee80211com *ic) 2376{ 2377 struct rum_softc *sc = ic->ic_softc; 2378 2379 RUM_LOCK(sc); 2380 rum_set_chan(sc, ic->ic_curchan); 2381 RUM_UNLOCK(sc); 2382} 2383 2384static int 2385rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2386{ 2387 struct ieee80211com *ic = &sc->sc_ic; 2388 int lna, agc, rssi; 2389 2390 lna = (raw >> 5) & 0x3; 2391 agc = raw & 0x1f; 2392 2393 if (lna == 0) { 2394 /* 2395 * No RSSI mapping 2396 * 2397 * NB: Since RSSI is relative to noise floor, -1 is 2398 * adequate for caller to know error happened. 2399 */ 2400 return -1; 2401 } 2402 2403 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2404 2405 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2406 rssi += sc->rssi_2ghz_corr; 2407 2408 if (lna == 1) 2409 rssi -= 64; 2410 else if (lna == 2) 2411 rssi -= 74; 2412 else if (lna == 3) 2413 rssi -= 90; 2414 } else { 2415 rssi += sc->rssi_5ghz_corr; 2416 2417 if (!sc->ext_5ghz_lna && lna != 1) 2418 rssi += 4; 2419 2420 if (lna == 1) 2421 rssi -= 64; 2422 else if (lna == 2) 2423 rssi -= 86; 2424 else if (lna == 3) 2425 rssi -= 100; 2426 } 2427 return rssi; 2428} 2429 2430static int 2431rum_pause(struct rum_softc *sc, int timeout) 2432{ 2433 2434 usb_pause_mtx(&sc->sc_mtx, timeout); 2435 return (0); 2436} 2437 2438static device_method_t rum_methods[] = { 2439 /* Device interface */ 2440 DEVMETHOD(device_probe, rum_match), 2441 DEVMETHOD(device_attach, rum_attach), 2442 DEVMETHOD(device_detach, rum_detach), 2443 DEVMETHOD_END 2444}; 2445 2446static driver_t rum_driver = { 2447 .name = "rum", 2448 .methods = rum_methods, 2449 .size = sizeof(struct rum_softc), 2450}; 2451 2452static devclass_t rum_devclass; 2453 2454DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2455MODULE_DEPEND(rum, wlan, 1, 1, 1); 2456MODULE_DEPEND(rum, usb, 1, 1, 1); 2457MODULE_VERSION(rum, 1); 2458