if_rum.c revision 288619
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288619 2015-10-03 17:18:35Z adrian $ */ 2 3/*- 4 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org> 6 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21#include <sys/cdefs.h> 22__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288619 2015-10-03 17:18:35Z adrian $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include <sys/param.h> 30#include <sys/sockio.h> 31#include <sys/sysctl.h> 32#include <sys/lock.h> 33#include <sys/mutex.h> 34#include <sys/mbuf.h> 35#include <sys/kernel.h> 36#include <sys/socket.h> 37#include <sys/systm.h> 38#include <sys/malloc.h> 39#include <sys/module.h> 40#include <sys/bus.h> 41#include <sys/endian.h> 42#include <sys/kdb.h> 43 44#include <machine/bus.h> 45#include <machine/resource.h> 46#include <sys/rman.h> 47 48#include <net/bpf.h> 49#include <net/if.h> 50#include <net/if_var.h> 51#include <net/if_arp.h> 52#include <net/ethernet.h> 53#include <net/if_dl.h> 54#include <net/if_media.h> 55#include <net/if_types.h> 56 57#ifdef INET 58#include <netinet/in.h> 59#include <netinet/in_systm.h> 60#include <netinet/in_var.h> 61#include <netinet/if_ether.h> 62#include <netinet/ip.h> 63#endif 64 65#include <net80211/ieee80211_var.h> 66#include <net80211/ieee80211_regdomain.h> 67#include <net80211/ieee80211_radiotap.h> 68#include <net80211/ieee80211_ratectl.h> 69 70#include <dev/usb/usb.h> 71#include <dev/usb/usbdi.h> 72#include "usbdevs.h" 73 74#define USB_DEBUG_VAR rum_debug 75#include <dev/usb/usb_debug.h> 76 77#include <dev/usb/wlan/if_rumreg.h> 78#include <dev/usb/wlan/if_rumvar.h> 79#include <dev/usb/wlan/if_rumfw.h> 80 81#ifdef USB_DEBUG 82static int rum_debug = 0; 83 84static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 85SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0, 86 "Debug level"); 87#endif 88 89static const STRUCT_USB_HOST_ID rum_devs[] = { 90#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 91 RUM_DEV(ABOCOM, HWU54DM), 92 RUM_DEV(ABOCOM, RT2573_2), 93 RUM_DEV(ABOCOM, RT2573_3), 94 RUM_DEV(ABOCOM, RT2573_4), 95 RUM_DEV(ABOCOM, WUG2700), 96 RUM_DEV(AMIT, CGWLUSB2GO), 97 RUM_DEV(ASUS, RT2573_1), 98 RUM_DEV(ASUS, RT2573_2), 99 RUM_DEV(BELKIN, F5D7050A), 100 RUM_DEV(BELKIN, F5D9050V3), 101 RUM_DEV(CISCOLINKSYS, WUSB54GC), 102 RUM_DEV(CISCOLINKSYS, WUSB54GR), 103 RUM_DEV(CONCEPTRONIC2, C54RU2), 104 RUM_DEV(COREGA, CGWLUSB2GL), 105 RUM_DEV(COREGA, CGWLUSB2GPX), 106 RUM_DEV(DICKSMITH, CWD854F), 107 RUM_DEV(DICKSMITH, RT2573), 108 RUM_DEV(EDIMAX, EW7318USG), 109 RUM_DEV(DLINK2, DWLG122C1), 110 RUM_DEV(DLINK2, WUA1340), 111 RUM_DEV(DLINK2, DWA111), 112 RUM_DEV(DLINK2, DWA110), 113 RUM_DEV(GIGABYTE, GNWB01GS), 114 RUM_DEV(GIGABYTE, GNWI05GS), 115 RUM_DEV(GIGASET, RT2573), 116 RUM_DEV(GOODWAY, RT2573), 117 RUM_DEV(GUILLEMOT, HWGUSB254LB), 118 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 119 RUM_DEV(HUAWEI3COM, WUB320G), 120 RUM_DEV(MELCO, G54HP), 121 RUM_DEV(MELCO, SG54HP), 122 RUM_DEV(MELCO, SG54HG), 123 RUM_DEV(MELCO, WLIUCG), 124 RUM_DEV(MELCO, WLRUCG), 125 RUM_DEV(MELCO, WLRUCGAOSS), 126 RUM_DEV(MSI, RT2573_1), 127 RUM_DEV(MSI, RT2573_2), 128 RUM_DEV(MSI, RT2573_3), 129 RUM_DEV(MSI, RT2573_4), 130 RUM_DEV(NOVATECH, RT2573), 131 RUM_DEV(PLANEX2, GWUS54HP), 132 RUM_DEV(PLANEX2, GWUS54MINI2), 133 RUM_DEV(PLANEX2, GWUSMM), 134 RUM_DEV(QCOM, RT2573), 135 RUM_DEV(QCOM, RT2573_2), 136 RUM_DEV(QCOM, RT2573_3), 137 RUM_DEV(RALINK, RT2573), 138 RUM_DEV(RALINK, RT2573_2), 139 RUM_DEV(RALINK, RT2671), 140 RUM_DEV(SITECOMEU, WL113R2), 141 RUM_DEV(SITECOMEU, WL172), 142 RUM_DEV(SPARKLAN, RT2573), 143 RUM_DEV(SURECOM, RT2573), 144#undef RUM_DEV 145}; 146 147static device_probe_t rum_match; 148static device_attach_t rum_attach; 149static device_detach_t rum_detach; 150 151static usb_callback_t rum_bulk_read_callback; 152static usb_callback_t rum_bulk_write_callback; 153 154static usb_error_t rum_do_request(struct rum_softc *sc, 155 struct usb_device_request *req, void *data); 156static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 157 const char [IFNAMSIZ], int, enum ieee80211_opmode, 158 int, const uint8_t [IEEE80211_ADDR_LEN], 159 const uint8_t [IEEE80211_ADDR_LEN]); 160static void rum_vap_delete(struct ieee80211vap *); 161static void rum_cmdq_cb(void *, int); 162static int rum_cmd_sleepable(struct rum_softc *, const void *, 163 size_t, uint8_t, uint8_t, CMD_FUNC_PROTO); 164static void rum_tx_free(struct rum_tx_data *, int); 165static void rum_setup_tx_list(struct rum_softc *); 166static void rum_unsetup_tx_list(struct rum_softc *); 167static int rum_newstate(struct ieee80211vap *, 168 enum ieee80211_state, int); 169static void rum_setup_tx_desc(struct rum_softc *, 170 struct rum_tx_desc *, uint32_t, uint16_t, int, 171 int); 172static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 173 struct ieee80211_node *); 174static int rum_tx_raw(struct rum_softc *, struct mbuf *, 175 struct ieee80211_node *, 176 const struct ieee80211_bpf_params *); 177static int rum_tx_data(struct rum_softc *, struct mbuf *, 178 struct ieee80211_node *); 179static int rum_transmit(struct ieee80211com *, struct mbuf *); 180static void rum_start(struct rum_softc *); 181static void rum_parent(struct ieee80211com *); 182static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 183 int); 184static uint32_t rum_read(struct rum_softc *, uint16_t); 185static void rum_read_multi(struct rum_softc *, uint16_t, void *, 186 int); 187static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 188static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 189 size_t); 190static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 191static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 192static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 193 uint32_t); 194static int rum_bbp_busy(struct rum_softc *); 195static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 196static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 197static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 198static void rum_select_antenna(struct rum_softc *); 199static void rum_enable_mrr(struct rum_softc *); 200static void rum_set_txpreamble(struct rum_softc *); 201static void rum_set_basicrates(struct rum_softc *); 202static void rum_select_band(struct rum_softc *, 203 struct ieee80211_channel *); 204static void rum_set_chan(struct rum_softc *, 205 struct ieee80211_channel *); 206static 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_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 int ret; 759 760 ostate = vap->iv_state; 761 DPRINTF("%s -> %s\n", 762 ieee80211_state_name[ostate], 763 ieee80211_state_name[nstate]); 764 765 IEEE80211_UNLOCK(ic); 766 RUM_LOCK(sc); 767 usb_callout_stop(&rvp->ratectl_ch); 768 769 switch (nstate) { 770 case IEEE80211_S_INIT: 771 if (ostate == IEEE80211_S_RUN) 772 rum_abort_tsf_sync(sc); 773 774 break; 775 776 case IEEE80211_S_RUN: 777 ni = ieee80211_ref_node(vap->iv_bss); 778 779 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 780 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 781 ret = EINVAL; 782 goto run_fail; 783 } 784 rum_update_slot(sc); 785 rum_enable_mrr(sc); 786 rum_set_txpreamble(sc); 787 rum_set_basicrates(sc); 788 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 789 rum_set_bssid(sc, sc->sc_bssid); 790 } 791 792 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 793 vap->iv_opmode == IEEE80211_M_IBSS) { 794 if ((ret = rum_prepare_beacon(sc, vap)) != 0) 795 goto run_fail; 796 } 797 798 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 799 if ((ret = rum_enable_tsf_sync(sc)) != 0) 800 goto run_fail; 801 } else 802 rum_enable_tsf(sc); 803 804 /* enable automatic rate adaptation */ 805 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 806 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 807 rum_ratectl_start(sc, ni); 808 ieee80211_free_node(ni); 809 break; 810 default: 811 break; 812 } 813 RUM_UNLOCK(sc); 814 IEEE80211_LOCK(ic); 815 return (rvp->newstate(vap, nstate, arg)); 816 817run_fail: 818 RUM_UNLOCK(sc); 819 IEEE80211_LOCK(ic); 820 ieee80211_free_node(ni); 821 return ret; 822} 823 824static void 825rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 826{ 827 struct rum_softc *sc = usbd_xfer_softc(xfer); 828 struct ieee80211vap *vap; 829 struct rum_tx_data *data; 830 struct mbuf *m; 831 struct usb_page_cache *pc; 832 unsigned int len; 833 int actlen, sumlen; 834 835 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 836 837 switch (USB_GET_STATE(xfer)) { 838 case USB_ST_TRANSFERRED: 839 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 840 841 /* free resources */ 842 data = usbd_xfer_get_priv(xfer); 843 rum_tx_free(data, 0); 844 usbd_xfer_set_priv(xfer, NULL); 845 846 /* FALLTHROUGH */ 847 case USB_ST_SETUP: 848tr_setup: 849 data = STAILQ_FIRST(&sc->tx_q); 850 if (data) { 851 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 852 m = data->m; 853 854 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 855 DPRINTFN(0, "data overflow, %u bytes\n", 856 m->m_pkthdr.len); 857 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 858 } 859 pc = usbd_xfer_get_frame(xfer, 0); 860 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 861 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 862 m->m_pkthdr.len); 863 864 vap = data->ni->ni_vap; 865 if (ieee80211_radiotap_active_vap(vap)) { 866 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 867 868 tap->wt_flags = 0; 869 tap->wt_rate = data->rate; 870 rum_get_tsf(sc, &tap->wt_tsf); 871 tap->wt_antenna = sc->tx_ant; 872 873 ieee80211_radiotap_tx(vap, m); 874 } 875 876 /* align end on a 4-bytes boundary */ 877 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 878 if ((len % 64) == 0) 879 len += 4; 880 881 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 882 m->m_pkthdr.len, len); 883 884 usbd_xfer_set_frame_len(xfer, 0, len); 885 usbd_xfer_set_priv(xfer, data); 886 887 usbd_transfer_submit(xfer); 888 } 889 rum_start(sc); 890 break; 891 892 default: /* Error */ 893 DPRINTFN(11, "transfer error, %s\n", 894 usbd_errstr(error)); 895 896 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 897 data = usbd_xfer_get_priv(xfer); 898 if (data != NULL) { 899 rum_tx_free(data, error); 900 usbd_xfer_set_priv(xfer, NULL); 901 } 902 903 if (error != USB_ERR_CANCELLED) { 904 if (error == USB_ERR_TIMEOUT) 905 device_printf(sc->sc_dev, "device timeout\n"); 906 907 /* 908 * Try to clear stall first, also if other 909 * errors occur, hence clearing stall 910 * introduces a 50 ms delay: 911 */ 912 usbd_xfer_set_stall(xfer); 913 goto tr_setup; 914 } 915 break; 916 } 917} 918 919static void 920rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 921{ 922 struct rum_softc *sc = usbd_xfer_softc(xfer); 923 struct ieee80211com *ic = &sc->sc_ic; 924 struct ieee80211_frame_min *wh; 925 struct ieee80211_node *ni; 926 struct mbuf *m = NULL; 927 struct usb_page_cache *pc; 928 uint32_t flags; 929 uint8_t rssi = 0; 930 int len; 931 932 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 933 934 switch (USB_GET_STATE(xfer)) { 935 case USB_ST_TRANSFERRED: 936 937 DPRINTFN(15, "rx done, actlen=%d\n", len); 938 939 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 940 DPRINTF("%s: xfer too short %d\n", 941 device_get_nameunit(sc->sc_dev), len); 942 counter_u64_add(ic->ic_ierrors, 1); 943 goto tr_setup; 944 } 945 946 len -= RT2573_RX_DESC_SIZE; 947 pc = usbd_xfer_get_frame(xfer, 0); 948 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 949 950 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 951 flags = le32toh(sc->sc_rx_desc.flags); 952 if (flags & RT2573_RX_CRC_ERROR) { 953 /* 954 * This should not happen since we did not 955 * request to receive those frames when we 956 * filled RUM_TXRX_CSR2: 957 */ 958 DPRINTFN(5, "PHY or CRC error\n"); 959 counter_u64_add(ic->ic_ierrors, 1); 960 goto tr_setup; 961 } 962 963 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 964 if (m == NULL) { 965 DPRINTF("could not allocate mbuf\n"); 966 counter_u64_add(ic->ic_ierrors, 1); 967 goto tr_setup; 968 } 969 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 970 mtod(m, uint8_t *), len); 971 972 wh = mtod(m, struct ieee80211_frame_min *); 973 974 /* finalize mbuf */ 975 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 976 977 if (ieee80211_radiotap_active(ic)) { 978 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 979 980 tap->wr_flags = 0; 981 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 982 (flags & RT2573_RX_OFDM) ? 983 IEEE80211_T_OFDM : IEEE80211_T_CCK); 984 rum_get_tsf(sc, &tap->wr_tsf); 985 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 986 tap->wr_antnoise = RT2573_NOISE_FLOOR; 987 tap->wr_antenna = sc->rx_ant; 988 } 989 /* FALLTHROUGH */ 990 case USB_ST_SETUP: 991tr_setup: 992 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 993 usbd_transfer_submit(xfer); 994 995 /* 996 * At the end of a USB callback it is always safe to unlock 997 * the private mutex of a device! That is why we do the 998 * "ieee80211_input" here, and not some lines up! 999 */ 1000 RUM_UNLOCK(sc); 1001 if (m) { 1002 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1003 ni = ieee80211_find_rxnode(ic, wh); 1004 else 1005 ni = NULL; 1006 1007 if (ni != NULL) { 1008 (void) ieee80211_input(ni, m, rssi, 1009 RT2573_NOISE_FLOOR); 1010 ieee80211_free_node(ni); 1011 } else 1012 (void) ieee80211_input_all(ic, m, rssi, 1013 RT2573_NOISE_FLOOR); 1014 } 1015 RUM_LOCK(sc); 1016 rum_start(sc); 1017 return; 1018 1019 default: /* Error */ 1020 if (error != USB_ERR_CANCELLED) { 1021 /* try to clear stall first */ 1022 usbd_xfer_set_stall(xfer); 1023 goto tr_setup; 1024 } 1025 return; 1026 } 1027} 1028 1029static uint8_t 1030rum_plcp_signal(int rate) 1031{ 1032 switch (rate) { 1033 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1034 case 12: return 0xb; 1035 case 18: return 0xf; 1036 case 24: return 0xa; 1037 case 36: return 0xe; 1038 case 48: return 0x9; 1039 case 72: return 0xd; 1040 case 96: return 0x8; 1041 case 108: return 0xc; 1042 1043 /* CCK rates (NB: not IEEE std, device-specific) */ 1044 case 2: return 0x0; 1045 case 4: return 0x1; 1046 case 11: return 0x2; 1047 case 22: return 0x3; 1048 } 1049 return 0xff; /* XXX unsupported/unknown rate */ 1050} 1051 1052static void 1053rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1054 uint32_t flags, uint16_t xflags, int len, int rate) 1055{ 1056 struct ieee80211com *ic = &sc->sc_ic; 1057 uint16_t plcp_length; 1058 int remainder; 1059 1060 desc->flags = htole32(flags); 1061 desc->flags |= htole32(RT2573_TX_VALID); 1062 desc->flags |= htole32(len << 16); 1063 1064 desc->xflags = htole16(xflags); 1065 1066 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1067 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1068 1069 /* setup PLCP fields */ 1070 desc->plcp_signal = rum_plcp_signal(rate); 1071 desc->plcp_service = 4; 1072 1073 len += IEEE80211_CRC_LEN; 1074 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1075 desc->flags |= htole32(RT2573_TX_OFDM); 1076 1077 plcp_length = len & 0xfff; 1078 desc->plcp_length_hi = plcp_length >> 6; 1079 desc->plcp_length_lo = plcp_length & 0x3f; 1080 } else { 1081 if (rate == 0) 1082 rate = 2; /* avoid division by zero */ 1083 plcp_length = (16 * len + rate - 1) / rate; 1084 if (rate == 22) { 1085 remainder = (16 * len) % 22; 1086 if (remainder != 0 && remainder < 7) 1087 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1088 } 1089 desc->plcp_length_hi = plcp_length >> 8; 1090 desc->plcp_length_lo = plcp_length & 0xff; 1091 1092 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1093 desc->plcp_signal |= 0x08; 1094 } 1095} 1096 1097static int 1098rum_sendprot(struct rum_softc *sc, 1099 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1100{ 1101 struct ieee80211com *ic = ni->ni_ic; 1102 const struct ieee80211_frame *wh; 1103 struct rum_tx_data *data; 1104 struct mbuf *mprot; 1105 int protrate, pktlen, flags, isshort; 1106 uint16_t dur; 1107 1108 RUM_LOCK_ASSERT(sc); 1109 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1110 ("protection %d", prot)); 1111 1112 wh = mtod(m, const struct ieee80211_frame *); 1113 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1114 1115 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1116 1117 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1118 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1119 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1120 flags = RT2573_TX_MORE_FRAG; 1121 if (prot == IEEE80211_PROT_RTSCTS) { 1122 /* NB: CTS is the same size as an ACK */ 1123 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1124 flags |= RT2573_TX_NEED_ACK; 1125 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1126 } else { 1127 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1128 } 1129 if (mprot == NULL) { 1130 /* XXX stat + msg */ 1131 return (ENOBUFS); 1132 } 1133 data = STAILQ_FIRST(&sc->tx_free); 1134 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1135 sc->tx_nfree--; 1136 1137 data->m = mprot; 1138 data->ni = ieee80211_ref_node(ni); 1139 data->rate = protrate; 1140 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1141 1142 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1143 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1144 1145 return 0; 1146} 1147 1148static int 1149rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1150{ 1151 struct ieee80211vap *vap = ni->ni_vap; 1152 struct ieee80211com *ic = &sc->sc_ic; 1153 struct rum_tx_data *data; 1154 struct ieee80211_frame *wh; 1155 const struct ieee80211_txparam *tp; 1156 struct ieee80211_key *k; 1157 uint32_t flags = 0; 1158 uint16_t dur; 1159 1160 RUM_LOCK_ASSERT(sc); 1161 1162 data = STAILQ_FIRST(&sc->tx_free); 1163 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1164 sc->tx_nfree--; 1165 1166 wh = mtod(m0, struct ieee80211_frame *); 1167 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1168 k = ieee80211_crypto_encap(ni, m0); 1169 if (k == NULL) 1170 return (ENOBUFS); 1171 1172 wh = mtod(m0, struct ieee80211_frame *); 1173 } 1174 1175 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1176 1177 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1178 flags |= RT2573_TX_NEED_ACK; 1179 1180 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1181 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1182 USETW(wh->i_dur, dur); 1183 1184 /* tell hardware to add timestamp for probe responses */ 1185 if ((wh->i_fc[0] & 1186 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1187 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1188 flags |= RT2573_TX_TIMESTAMP; 1189 } 1190 1191 data->m = m0; 1192 data->ni = ni; 1193 data->rate = tp->mgmtrate; 1194 1195 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1196 1197 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1198 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1199 1200 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1201 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1202 1203 return (0); 1204} 1205 1206static int 1207rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1208 const struct ieee80211_bpf_params *params) 1209{ 1210 struct ieee80211com *ic = ni->ni_ic; 1211 struct rum_tx_data *data; 1212 uint32_t flags; 1213 int rate, error; 1214 1215 RUM_LOCK_ASSERT(sc); 1216 1217 rate = params->ibp_rate0; 1218 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1219 return (EINVAL); 1220 1221 flags = 0; 1222 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1223 flags |= RT2573_TX_NEED_ACK; 1224 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1225 error = rum_sendprot(sc, m0, ni, 1226 params->ibp_flags & IEEE80211_BPF_RTS ? 1227 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1228 rate); 1229 if (error || sc->tx_nfree == 0) 1230 return (ENOBUFS); 1231 1232 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1233 } 1234 1235 data = STAILQ_FIRST(&sc->tx_free); 1236 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1237 sc->tx_nfree--; 1238 1239 data->m = m0; 1240 data->ni = ni; 1241 data->rate = rate; 1242 1243 /* XXX need to setup descriptor ourself */ 1244 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1245 1246 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1247 m0->m_pkthdr.len, rate); 1248 1249 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1250 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1251 1252 return 0; 1253} 1254 1255static int 1256rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1257{ 1258 struct ieee80211vap *vap = ni->ni_vap; 1259 struct ieee80211com *ic = &sc->sc_ic; 1260 struct rum_tx_data *data; 1261 struct ieee80211_frame *wh; 1262 const struct ieee80211_txparam *tp; 1263 struct ieee80211_key *k; 1264 uint32_t flags = 0; 1265 uint16_t dur; 1266 int error, rate; 1267 1268 RUM_LOCK_ASSERT(sc); 1269 1270 wh = mtod(m0, struct ieee80211_frame *); 1271 1272 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1273 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1274 rate = tp->mcastrate; 1275 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1276 rate = tp->ucastrate; 1277 else 1278 rate = ni->ni_txrate; 1279 1280 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1281 k = ieee80211_crypto_encap(ni, m0); 1282 if (k == NULL) { 1283 m_freem(m0); 1284 return ENOBUFS; 1285 } 1286 1287 /* packet header may have moved, reset our local pointer */ 1288 wh = mtod(m0, struct ieee80211_frame *); 1289 } 1290 1291 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1292 int prot = IEEE80211_PROT_NONE; 1293 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1294 prot = IEEE80211_PROT_RTSCTS; 1295 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1296 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1297 prot = ic->ic_protmode; 1298 if (prot != IEEE80211_PROT_NONE) { 1299 error = rum_sendprot(sc, m0, ni, prot, rate); 1300 if (error || sc->tx_nfree == 0) { 1301 m_freem(m0); 1302 return ENOBUFS; 1303 } 1304 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1305 } 1306 } 1307 1308 data = STAILQ_FIRST(&sc->tx_free); 1309 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1310 sc->tx_nfree--; 1311 1312 data->m = m0; 1313 data->ni = ni; 1314 data->rate = rate; 1315 1316 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1317 flags |= RT2573_TX_NEED_ACK; 1318 flags |= RT2573_TX_MORE_FRAG; 1319 1320 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1321 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1322 USETW(wh->i_dur, dur); 1323 } 1324 1325 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1326 1327 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1328 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1329 1330 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1331 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1332 1333 return 0; 1334} 1335 1336static int 1337rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1338{ 1339 struct rum_softc *sc = ic->ic_softc; 1340 int error; 1341 1342 RUM_LOCK(sc); 1343 if (!sc->sc_running) { 1344 RUM_UNLOCK(sc); 1345 return (ENXIO); 1346 } 1347 error = mbufq_enqueue(&sc->sc_snd, m); 1348 if (error) { 1349 RUM_UNLOCK(sc); 1350 return (error); 1351 } 1352 rum_start(sc); 1353 RUM_UNLOCK(sc); 1354 1355 return (0); 1356} 1357 1358static void 1359rum_start(struct rum_softc *sc) 1360{ 1361 struct ieee80211_node *ni; 1362 struct mbuf *m; 1363 1364 RUM_LOCK_ASSERT(sc); 1365 1366 if (!sc->sc_running) 1367 return; 1368 1369 while (sc->tx_nfree >= RUM_TX_MINFREE && 1370 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1371 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1372 if (rum_tx_data(sc, m, ni) != 0) { 1373 if_inc_counter(ni->ni_vap->iv_ifp, 1374 IFCOUNTER_OERRORS, 1); 1375 ieee80211_free_node(ni); 1376 break; 1377 } 1378 } 1379} 1380 1381static void 1382rum_parent(struct ieee80211com *ic) 1383{ 1384 struct rum_softc *sc = ic->ic_softc; 1385 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1386 1387 RUM_LOCK(sc); 1388 if (sc->sc_detached) { 1389 RUM_UNLOCK(sc); 1390 return; 1391 } 1392 RUM_UNLOCK(sc); 1393 1394 if (ic->ic_nrunning > 0) { 1395 if (rum_init(sc) == 0) 1396 ieee80211_start_all(ic); 1397 else 1398 ieee80211_stop(vap); 1399 } else 1400 rum_stop(sc); 1401} 1402 1403static void 1404rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1405{ 1406 struct usb_device_request req; 1407 usb_error_t error; 1408 1409 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1410 req.bRequest = RT2573_READ_EEPROM; 1411 USETW(req.wValue, 0); 1412 USETW(req.wIndex, addr); 1413 USETW(req.wLength, len); 1414 1415 error = rum_do_request(sc, &req, buf); 1416 if (error != 0) { 1417 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1418 usbd_errstr(error)); 1419 } 1420} 1421 1422static uint32_t 1423rum_read(struct rum_softc *sc, uint16_t reg) 1424{ 1425 uint32_t val; 1426 1427 rum_read_multi(sc, reg, &val, sizeof val); 1428 1429 return le32toh(val); 1430} 1431 1432static void 1433rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1434{ 1435 struct usb_device_request req; 1436 usb_error_t error; 1437 1438 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1439 req.bRequest = RT2573_READ_MULTI_MAC; 1440 USETW(req.wValue, 0); 1441 USETW(req.wIndex, reg); 1442 USETW(req.wLength, len); 1443 1444 error = rum_do_request(sc, &req, buf); 1445 if (error != 0) { 1446 device_printf(sc->sc_dev, 1447 "could not multi read MAC register: %s\n", 1448 usbd_errstr(error)); 1449 } 1450} 1451 1452static usb_error_t 1453rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1454{ 1455 uint32_t tmp = htole32(val); 1456 1457 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1458} 1459 1460static usb_error_t 1461rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1462{ 1463 struct usb_device_request req; 1464 usb_error_t error; 1465 size_t offset; 1466 1467 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1468 req.bRequest = RT2573_WRITE_MULTI_MAC; 1469 USETW(req.wValue, 0); 1470 1471 /* write at most 64 bytes at a time */ 1472 for (offset = 0; offset < len; offset += 64) { 1473 USETW(req.wIndex, reg + offset); 1474 USETW(req.wLength, MIN(len - offset, 64)); 1475 1476 error = rum_do_request(sc, &req, (char *)buf + offset); 1477 if (error != 0) { 1478 device_printf(sc->sc_dev, 1479 "could not multi write MAC register: %s\n", 1480 usbd_errstr(error)); 1481 return (error); 1482 } 1483 } 1484 1485 return (USB_ERR_NORMAL_COMPLETION); 1486} 1487 1488static usb_error_t 1489rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1490{ 1491 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1492} 1493 1494static usb_error_t 1495rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1496{ 1497 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1498} 1499 1500static usb_error_t 1501rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1502{ 1503 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1504} 1505 1506static int 1507rum_bbp_busy(struct rum_softc *sc) 1508{ 1509 int ntries; 1510 1511 for (ntries = 0; ntries < 100; ntries++) { 1512 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1513 break; 1514 if (rum_pause(sc, hz / 100)) 1515 break; 1516 } 1517 if (ntries == 100) 1518 return (ETIMEDOUT); 1519 1520 return (0); 1521} 1522 1523static void 1524rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1525{ 1526 uint32_t tmp; 1527 1528 DPRINTFN(2, "reg=0x%08x\n", reg); 1529 1530 if (rum_bbp_busy(sc) != 0) { 1531 device_printf(sc->sc_dev, "could not write to BBP\n"); 1532 return; 1533 } 1534 1535 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1536 rum_write(sc, RT2573_PHY_CSR3, tmp); 1537} 1538 1539static uint8_t 1540rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1541{ 1542 uint32_t val; 1543 int ntries; 1544 1545 DPRINTFN(2, "reg=0x%08x\n", reg); 1546 1547 if (rum_bbp_busy(sc) != 0) { 1548 device_printf(sc->sc_dev, "could not read BBP\n"); 1549 return 0; 1550 } 1551 1552 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1553 rum_write(sc, RT2573_PHY_CSR3, val); 1554 1555 for (ntries = 0; ntries < 100; ntries++) { 1556 val = rum_read(sc, RT2573_PHY_CSR3); 1557 if (!(val & RT2573_BBP_BUSY)) 1558 return val & 0xff; 1559 if (rum_pause(sc, hz / 100)) 1560 break; 1561 } 1562 1563 device_printf(sc->sc_dev, "could not read BBP\n"); 1564 return 0; 1565} 1566 1567static void 1568rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1569{ 1570 uint32_t tmp; 1571 int ntries; 1572 1573 for (ntries = 0; ntries < 100; ntries++) { 1574 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1575 break; 1576 if (rum_pause(sc, hz / 100)) 1577 break; 1578 } 1579 if (ntries == 100) { 1580 device_printf(sc->sc_dev, "could not write to RF\n"); 1581 return; 1582 } 1583 1584 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1585 (reg & 3); 1586 rum_write(sc, RT2573_PHY_CSR4, tmp); 1587 1588 /* remember last written value in sc */ 1589 sc->rf_regs[reg] = val; 1590 1591 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1592} 1593 1594static void 1595rum_select_antenna(struct rum_softc *sc) 1596{ 1597 uint8_t bbp4, bbp77; 1598 uint32_t tmp; 1599 1600 bbp4 = rum_bbp_read(sc, 4); 1601 bbp77 = rum_bbp_read(sc, 77); 1602 1603 /* TBD */ 1604 1605 /* make sure Rx is disabled before switching antenna */ 1606 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1607 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1608 1609 rum_bbp_write(sc, 4, bbp4); 1610 rum_bbp_write(sc, 77, bbp77); 1611 1612 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1613} 1614 1615/* 1616 * Enable multi-rate retries for frames sent at OFDM rates. 1617 * In 802.11b/g mode, allow fallback to CCK rates. 1618 */ 1619static void 1620rum_enable_mrr(struct rum_softc *sc) 1621{ 1622 struct ieee80211com *ic = &sc->sc_ic; 1623 1624 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1625 rum_setbits(sc, RT2573_TXRX_CSR4, 1626 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1627 } else { 1628 rum_modbits(sc, RT2573_TXRX_CSR4, 1629 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1630 } 1631} 1632 1633static void 1634rum_set_txpreamble(struct rum_softc *sc) 1635{ 1636 struct ieee80211com *ic = &sc->sc_ic; 1637 1638 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1639 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1640 else 1641 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1642} 1643 1644static void 1645rum_set_basicrates(struct rum_softc *sc) 1646{ 1647 struct ieee80211com *ic = &sc->sc_ic; 1648 1649 /* update basic rate set */ 1650 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1651 /* 11b basic rates: 1, 2Mbps */ 1652 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1653 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1654 /* 11a basic rates: 6, 12, 24Mbps */ 1655 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1656 } else { 1657 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1658 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1659 } 1660} 1661 1662/* 1663 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1664 * driver. 1665 */ 1666static void 1667rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1668{ 1669 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1670 1671 /* update all BBP registers that depend on the band */ 1672 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1673 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1674 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1675 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1676 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1677 } 1678 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1679 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1680 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1681 } 1682 1683 sc->bbp17 = bbp17; 1684 rum_bbp_write(sc, 17, bbp17); 1685 rum_bbp_write(sc, 96, bbp96); 1686 rum_bbp_write(sc, 104, bbp104); 1687 1688 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1689 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1690 rum_bbp_write(sc, 75, 0x80); 1691 rum_bbp_write(sc, 86, 0x80); 1692 rum_bbp_write(sc, 88, 0x80); 1693 } 1694 1695 rum_bbp_write(sc, 35, bbp35); 1696 rum_bbp_write(sc, 97, bbp97); 1697 rum_bbp_write(sc, 98, bbp98); 1698 1699 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1700 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1701 RT2573_PA_PE_5GHZ); 1702 } else { 1703 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1704 RT2573_PA_PE_2GHZ); 1705 } 1706} 1707 1708static void 1709rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1710{ 1711 struct ieee80211com *ic = &sc->sc_ic; 1712 const struct rfprog *rfprog; 1713 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1714 int8_t power; 1715 int i, chan; 1716 1717 chan = ieee80211_chan2ieee(ic, c); 1718 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1719 return; 1720 1721 /* select the appropriate RF settings based on what EEPROM says */ 1722 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1723 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1724 1725 /* find the settings for this channel (we know it exists) */ 1726 for (i = 0; rfprog[i].chan != chan; i++); 1727 1728 power = sc->txpow[i]; 1729 if (power < 0) { 1730 bbp94 += power; 1731 power = 0; 1732 } else if (power > 31) { 1733 bbp94 += power - 31; 1734 power = 31; 1735 } 1736 1737 /* 1738 * If we are switching from the 2GHz band to the 5GHz band or 1739 * vice-versa, BBP registers need to be reprogrammed. 1740 */ 1741 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1742 rum_select_band(sc, c); 1743 rum_select_antenna(sc); 1744 } 1745 ic->ic_curchan = c; 1746 1747 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1748 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1749 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1750 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1751 1752 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1753 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1754 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1755 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1756 1757 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1758 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1759 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1760 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1761 1762 rum_pause(sc, hz / 100); 1763 1764 /* enable smart mode for MIMO-capable RFs */ 1765 bbp3 = rum_bbp_read(sc, 3); 1766 1767 bbp3 &= ~RT2573_SMART_MODE; 1768 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1769 bbp3 |= RT2573_SMART_MODE; 1770 1771 rum_bbp_write(sc, 3, bbp3); 1772 1773 if (bbp94 != RT2573_BBPR94_DEFAULT) 1774 rum_bbp_write(sc, 94, bbp94); 1775 1776 /* give the chip some extra time to do the switchover */ 1777 rum_pause(sc, hz / 100); 1778} 1779 1780/* 1781 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1782 * and HostAP operating modes. 1783 */ 1784static int 1785rum_enable_tsf_sync(struct rum_softc *sc) 1786{ 1787 struct ieee80211com *ic = &sc->sc_ic; 1788 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1789 uint32_t tmp; 1790 1791 if (vap->iv_opmode != IEEE80211_M_STA) { 1792 /* 1793 * Change default 16ms TBTT adjustment to 8ms. 1794 * Must be done before enabling beacon generation. 1795 */ 1796 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 1797 return EIO; 1798 } 1799 1800 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1801 1802 /* set beacon interval (in 1/16ms unit) */ 1803 tmp |= vap->iv_bss->ni_intval * 16; 1804 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1805 1806 switch (vap->iv_opmode) { 1807 case IEEE80211_M_STA: 1808 /* 1809 * Local TSF is always updated with remote TSF on beacon 1810 * reception. 1811 */ 1812 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 1813 break; 1814 case IEEE80211_M_IBSS: 1815 /* 1816 * Local TSF is updated with remote TSF on beacon reception 1817 * only if the remote TSF is greater than local TSF. 1818 */ 1819 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 1820 tmp |= RT2573_BCN_TX_EN; 1821 break; 1822 case IEEE80211_M_HOSTAP: 1823 /* SYNC with nobody */ 1824 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 1825 tmp |= RT2573_BCN_TX_EN; 1826 break; 1827 default: 1828 device_printf(sc->sc_dev, 1829 "Enabling TSF failed. undefined opmode %d\n", 1830 vap->iv_opmode); 1831 return EINVAL; 1832 } 1833 1834 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 1835 return EIO; 1836 1837 return 0; 1838} 1839 1840static void 1841rum_enable_tsf(struct rum_softc *sc) 1842{ 1843 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 1844 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 1845} 1846 1847static void 1848rum_abort_tsf_sync(struct rum_softc *sc) 1849{ 1850 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 1851} 1852 1853static void 1854rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 1855{ 1856 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 1857} 1858 1859static void 1860rum_update_slot(struct rum_softc *sc) 1861{ 1862 struct ieee80211com *ic = &sc->sc_ic; 1863 uint8_t slottime; 1864 1865 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1866 1867 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 1868 1869 DPRINTF("setting slot time to %uus\n", slottime); 1870} 1871 1872static void 1873rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1874{ 1875 uint32_t tmp; 1876 1877 tmp = bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24; 1878 rum_write(sc, RT2573_MAC_CSR4, tmp); 1879 1880 tmp = bssid[4] | bssid[5] << 8 | RT2573_ONE_BSSID << 16; 1881 rum_write(sc, RT2573_MAC_CSR5, tmp); 1882} 1883 1884static void 1885rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1886{ 1887 uint32_t tmp; 1888 1889 tmp = addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24; 1890 rum_write(sc, RT2573_MAC_CSR2, tmp); 1891 1892 tmp = addr[4] | addr[5] << 8 | 0xff << 16; 1893 rum_write(sc, RT2573_MAC_CSR3, tmp); 1894} 1895 1896static void 1897rum_setpromisc(struct rum_softc *sc) 1898{ 1899 struct ieee80211com *ic = &sc->sc_ic; 1900 1901 if (ic->ic_promisc == 0) 1902 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1903 else 1904 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1905 1906 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 1907 "entering" : "leaving"); 1908} 1909 1910static void 1911rum_update_promisc(struct ieee80211com *ic) 1912{ 1913 struct rum_softc *sc = ic->ic_softc; 1914 1915 RUM_LOCK(sc); 1916 if (!sc->sc_running) { 1917 RUM_UNLOCK(sc); 1918 return; 1919 } 1920 rum_setpromisc(sc); 1921 RUM_UNLOCK(sc); 1922} 1923 1924static void 1925rum_update_mcast(struct ieee80211com *ic) 1926{ 1927 /* Ignore. */ 1928} 1929 1930static const char * 1931rum_get_rf(int rev) 1932{ 1933 switch (rev) { 1934 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1935 case RT2573_RF_2528: return "RT2528"; 1936 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1937 case RT2573_RF_5226: return "RT5226"; 1938 default: return "unknown"; 1939 } 1940} 1941 1942static void 1943rum_read_eeprom(struct rum_softc *sc) 1944{ 1945 uint16_t val; 1946#ifdef RUM_DEBUG 1947 int i; 1948#endif 1949 1950 /* read MAC address */ 1951 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 1952 1953 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1954 val = le16toh(val); 1955 sc->rf_rev = (val >> 11) & 0x1f; 1956 sc->hw_radio = (val >> 10) & 0x1; 1957 sc->rx_ant = (val >> 4) & 0x3; 1958 sc->tx_ant = (val >> 2) & 0x3; 1959 sc->nb_ant = val & 0x3; 1960 1961 DPRINTF("RF revision=%d\n", sc->rf_rev); 1962 1963 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1964 val = le16toh(val); 1965 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1966 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1967 1968 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1969 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1970 1971 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1972 val = le16toh(val); 1973 if ((val & 0xff) != 0xff) 1974 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1975 1976 /* Only [-10, 10] is valid */ 1977 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1978 sc->rssi_2ghz_corr = 0; 1979 1980 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1981 val = le16toh(val); 1982 if ((val & 0xff) != 0xff) 1983 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1984 1985 /* Only [-10, 10] is valid */ 1986 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1987 sc->rssi_5ghz_corr = 0; 1988 1989 if (sc->ext_2ghz_lna) 1990 sc->rssi_2ghz_corr -= 14; 1991 if (sc->ext_5ghz_lna) 1992 sc->rssi_5ghz_corr -= 14; 1993 1994 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1995 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1996 1997 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1998 val = le16toh(val); 1999 if ((val & 0xff) != 0xff) 2000 sc->rffreq = val & 0xff; 2001 2002 DPRINTF("RF freq=%d\n", sc->rffreq); 2003 2004 /* read Tx power for all a/b/g channels */ 2005 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2006 /* XXX default Tx power for 802.11a channels */ 2007 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2008#ifdef RUM_DEBUG 2009 for (i = 0; i < 14; i++) 2010 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2011#endif 2012 2013 /* read default values for BBP registers */ 2014 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2015#ifdef RUM_DEBUG 2016 for (i = 0; i < 14; i++) { 2017 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2018 continue; 2019 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2020 sc->bbp_prom[i].val); 2021 } 2022#endif 2023} 2024 2025static int 2026rum_bbp_wakeup(struct rum_softc *sc) 2027{ 2028 unsigned int ntries; 2029 2030 for (ntries = 0; ntries < 100; ntries++) { 2031 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2032 break; 2033 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2034 if (rum_pause(sc, hz / 100)) 2035 break; 2036 } 2037 if (ntries == 100) { 2038 device_printf(sc->sc_dev, 2039 "timeout waiting for BBP/RF to wakeup\n"); 2040 return (ETIMEDOUT); 2041 } 2042 2043 return (0); 2044} 2045 2046static int 2047rum_bbp_init(struct rum_softc *sc) 2048{ 2049 int i, ntries; 2050 2051 /* wait for BBP to be ready */ 2052 for (ntries = 0; ntries < 100; ntries++) { 2053 const uint8_t val = rum_bbp_read(sc, 0); 2054 if (val != 0 && val != 0xff) 2055 break; 2056 if (rum_pause(sc, hz / 100)) 2057 break; 2058 } 2059 if (ntries == 100) { 2060 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2061 return EIO; 2062 } 2063 2064 /* initialize BBP registers to default values */ 2065 for (i = 0; i < nitems(rum_def_bbp); i++) 2066 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2067 2068 /* write vendor-specific BBP values (from EEPROM) */ 2069 for (i = 0; i < 16; i++) { 2070 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2071 continue; 2072 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2073 } 2074 2075 return 0; 2076} 2077 2078static int 2079rum_init(struct rum_softc *sc) 2080{ 2081 struct ieee80211com *ic = &sc->sc_ic; 2082 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2083 uint32_t tmp; 2084 int i, ret; 2085 2086 RUM_LOCK(sc); 2087 if (sc->sc_running) { 2088 ret = 0; 2089 goto end; 2090 } 2091 2092 /* initialize MAC registers to default values */ 2093 for (i = 0; i < nitems(rum_def_mac); i++) 2094 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2095 2096 /* set host ready */ 2097 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2098 rum_write(sc, RT2573_MAC_CSR1, 0); 2099 2100 /* wait for BBP/RF to wakeup */ 2101 if ((ret = rum_bbp_wakeup(sc)) != 0) 2102 goto end; 2103 2104 if ((ret = rum_bbp_init(sc)) != 0) 2105 goto end; 2106 2107 /* select default channel */ 2108 rum_select_band(sc, ic->ic_curchan); 2109 rum_select_antenna(sc); 2110 rum_set_chan(sc, ic->ic_curchan); 2111 2112 /* clear STA registers */ 2113 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2114 2115 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2116 2117 /* initialize ASIC */ 2118 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2119 2120 /* 2121 * Allocate Tx and Rx xfer queues. 2122 */ 2123 rum_setup_tx_list(sc); 2124 2125 /* update Rx filter */ 2126 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2127 2128 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2129 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2130 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2131 RT2573_DROP_ACKCTS; 2132 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2133 tmp |= RT2573_DROP_TODS; 2134 if (ic->ic_promisc == 0) 2135 tmp |= RT2573_DROP_NOT_TO_ME; 2136 } 2137 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2138 2139 sc->sc_running = 1; 2140 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2141 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2142 2143end: RUM_UNLOCK(sc); 2144 2145 if (ret != 0) 2146 rum_stop(sc); 2147 2148 return ret; 2149} 2150 2151static void 2152rum_stop(struct rum_softc *sc) 2153{ 2154 2155 RUM_LOCK(sc); 2156 if (!sc->sc_running) { 2157 RUM_UNLOCK(sc); 2158 return; 2159 } 2160 sc->sc_running = 0; 2161 RUM_UNLOCK(sc); 2162 2163 /* 2164 * Drain the USB transfers, if not already drained: 2165 */ 2166 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2167 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2168 2169 RUM_LOCK(sc); 2170 rum_unsetup_tx_list(sc); 2171 2172 /* disable Rx */ 2173 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2174 2175 /* reset ASIC */ 2176 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2177 rum_write(sc, RT2573_MAC_CSR1, 0); 2178 RUM_UNLOCK(sc); 2179} 2180 2181static void 2182rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2183{ 2184 struct usb_device_request req; 2185 uint16_t reg = RT2573_MCU_CODE_BASE; 2186 usb_error_t err; 2187 2188 /* copy firmware image into NIC */ 2189 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2190 err = rum_write(sc, reg, UGETDW(ucode)); 2191 if (err) { 2192 /* firmware already loaded ? */ 2193 device_printf(sc->sc_dev, "Firmware load " 2194 "failure! (ignored)\n"); 2195 break; 2196 } 2197 } 2198 2199 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2200 req.bRequest = RT2573_MCU_CNTL; 2201 USETW(req.wValue, RT2573_MCU_RUN); 2202 USETW(req.wIndex, 0); 2203 USETW(req.wLength, 0); 2204 2205 err = rum_do_request(sc, &req, NULL); 2206 if (err != 0) { 2207 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2208 usbd_errstr(err)); 2209 } 2210 2211 /* give the chip some time to boot */ 2212 rum_pause(sc, hz / 8); 2213} 2214 2215static int 2216rum_prepare_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2217{ 2218 struct ieee80211com *ic = vap->iv_ic; 2219 const struct ieee80211_txparam *tp; 2220 struct rum_tx_desc desc; 2221 struct mbuf *m0; 2222 int ret = 0; 2223 2224 if (vap->iv_bss->ni_chan == IEEE80211_CHAN_ANYC) 2225 return EINVAL; 2226 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2227 return EINVAL; 2228 2229 m0 = ieee80211_beacon_alloc(vap->iv_bss, &vap->iv_bcn_off); 2230 if (m0 == NULL) 2231 return ENOMEM; 2232 2233 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2234 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2235 m0->m_pkthdr.len, tp->mgmtrate); 2236 2237 /* copy the first 24 bytes of Tx descriptor into NIC memory */ 2238 if ((ret = rum_write_multi(sc, RT2573_HW_BEACON_BASE0, 2239 (uint8_t *)&desc, 24)) != 0) { 2240 ret = EIO; 2241 goto end; 2242 } 2243 2244 /* copy beacon header and payload into NIC memory */ 2245 if ((ret = rum_write_multi(sc, RT2573_HW_BEACON_BASE0 + 24, mtod(m0, uint8_t *), 2246 m0->m_pkthdr.len)) != 0) 2247 ret = EIO; 2248 2249end: 2250 m_freem(m0); 2251 return ret; 2252} 2253 2254static int 2255rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2256 const struct ieee80211_bpf_params *params) 2257{ 2258 struct rum_softc *sc = ni->ni_ic->ic_softc; 2259 int ret; 2260 2261 RUM_LOCK(sc); 2262 /* prevent management frames from being sent if we're not ready */ 2263 if (!sc->sc_running) { 2264 ret = ENETDOWN; 2265 goto bad; 2266 } 2267 if (sc->tx_nfree < RUM_TX_MINFREE) { 2268 ret = EIO; 2269 goto bad; 2270 } 2271 2272 if (params == NULL) { 2273 /* 2274 * Legacy path; interpret frame contents to decide 2275 * precisely how to send the frame. 2276 */ 2277 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 2278 goto bad; 2279 } else { 2280 /* 2281 * Caller supplied explicit parameters to use in 2282 * sending the frame. 2283 */ 2284 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 2285 goto bad; 2286 } 2287 RUM_UNLOCK(sc); 2288 2289 return 0; 2290bad: 2291 RUM_UNLOCK(sc); 2292 m_freem(m); 2293 ieee80211_free_node(ni); 2294 return ret; 2295} 2296 2297static void 2298rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2299{ 2300 struct ieee80211vap *vap = ni->ni_vap; 2301 struct rum_vap *rvp = RUM_VAP(vap); 2302 2303 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2304 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2305 2306 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2307} 2308 2309static void 2310rum_ratectl_timeout(void *arg) 2311{ 2312 struct rum_vap *rvp = arg; 2313 struct ieee80211vap *vap = &rvp->vap; 2314 struct ieee80211com *ic = vap->iv_ic; 2315 2316 ieee80211_runtask(ic, &rvp->ratectl_task); 2317} 2318 2319static void 2320rum_ratectl_task(void *arg, int pending) 2321{ 2322 struct rum_vap *rvp = arg; 2323 struct ieee80211vap *vap = &rvp->vap; 2324 struct ieee80211com *ic = vap->iv_ic; 2325 struct rum_softc *sc = ic->ic_softc; 2326 struct ieee80211_node *ni; 2327 int ok, fail; 2328 int sum, retrycnt; 2329 2330 RUM_LOCK(sc); 2331 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2332 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2333 2334 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2335 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2336 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2337 sum = ok+fail; 2338 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2339 2340 ni = ieee80211_ref_node(vap->iv_bss); 2341 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2342 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2343 ieee80211_free_node(ni); 2344 2345 /* count TX retry-fail as Tx errors */ 2346 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2347 2348 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2349 RUM_UNLOCK(sc); 2350} 2351 2352static void 2353rum_scan_start(struct ieee80211com *ic) 2354{ 2355 struct rum_softc *sc = ic->ic_softc; 2356 2357 RUM_LOCK(sc); 2358 rum_abort_tsf_sync(sc); 2359 rum_set_bssid(sc, ieee80211broadcastaddr); 2360 RUM_UNLOCK(sc); 2361 2362} 2363 2364static void 2365rum_scan_end(struct ieee80211com *ic) 2366{ 2367 struct rum_softc *sc = ic->ic_softc; 2368 2369 RUM_LOCK(sc); 2370 rum_enable_tsf_sync(sc); 2371 rum_set_bssid(sc, sc->sc_bssid); 2372 RUM_UNLOCK(sc); 2373 2374} 2375 2376static void 2377rum_set_channel(struct ieee80211com *ic) 2378{ 2379 struct rum_softc *sc = ic->ic_softc; 2380 2381 RUM_LOCK(sc); 2382 rum_set_chan(sc, ic->ic_curchan); 2383 RUM_UNLOCK(sc); 2384} 2385 2386static int 2387rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2388{ 2389 struct ieee80211com *ic = &sc->sc_ic; 2390 int lna, agc, rssi; 2391 2392 lna = (raw >> 5) & 0x3; 2393 agc = raw & 0x1f; 2394 2395 if (lna == 0) { 2396 /* 2397 * No RSSI mapping 2398 * 2399 * NB: Since RSSI is relative to noise floor, -1 is 2400 * adequate for caller to know error happened. 2401 */ 2402 return -1; 2403 } 2404 2405 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2406 2407 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2408 rssi += sc->rssi_2ghz_corr; 2409 2410 if (lna == 1) 2411 rssi -= 64; 2412 else if (lna == 2) 2413 rssi -= 74; 2414 else if (lna == 3) 2415 rssi -= 90; 2416 } else { 2417 rssi += sc->rssi_5ghz_corr; 2418 2419 if (!sc->ext_5ghz_lna && lna != 1) 2420 rssi += 4; 2421 2422 if (lna == 1) 2423 rssi -= 64; 2424 else if (lna == 2) 2425 rssi -= 86; 2426 else if (lna == 3) 2427 rssi -= 100; 2428 } 2429 return rssi; 2430} 2431 2432static int 2433rum_pause(struct rum_softc *sc, int timeout) 2434{ 2435 2436 usb_pause_mtx(&sc->sc_mtx, timeout); 2437 return (0); 2438} 2439 2440static device_method_t rum_methods[] = { 2441 /* Device interface */ 2442 DEVMETHOD(device_probe, rum_match), 2443 DEVMETHOD(device_attach, rum_attach), 2444 DEVMETHOD(device_detach, rum_detach), 2445 DEVMETHOD_END 2446}; 2447 2448static driver_t rum_driver = { 2449 .name = "rum", 2450 .methods = rum_methods, 2451 .size = sizeof(struct rum_softc), 2452}; 2453 2454static devclass_t rum_devclass; 2455 2456DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2457MODULE_DEPEND(rum, wlan, 1, 1, 1); 2458MODULE_DEPEND(rum, usb, 1, 1, 1); 2459MODULE_VERSION(rum, 1); 2460