if_rum.c revision 288632
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288632 2015-10-03 20:45:43Z 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 288632 2015-10-03 20:45:43Z 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_cb(struct rum_softc *, 211 union sec_param *, uint8_t, uint8_t); 212static void rum_update_slot(struct ieee80211com *); 213static void rum_set_bssid(struct rum_softc *, const uint8_t *); 214static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 215static void rum_update_mcast(struct ieee80211com *); 216static void rum_update_promisc(struct ieee80211com *); 217static void rum_setpromisc(struct rum_softc *); 218static const char *rum_get_rf(int); 219static void rum_read_eeprom(struct rum_softc *); 220static int rum_bbp_wakeup(struct rum_softc *); 221static int rum_bbp_init(struct rum_softc *); 222static int rum_init(struct rum_softc *); 223static void rum_stop(struct rum_softc *); 224static void rum_load_microcode(struct rum_softc *, const uint8_t *, 225 size_t); 226static int rum_set_beacon(struct rum_softc *, 227 struct ieee80211vap *); 228static int rum_alloc_beacon(struct rum_softc *, 229 struct ieee80211vap *); 230static void rum_update_beacon_cb(struct rum_softc *, 231 union sec_param *, uint8_t, uint8_t); 232static void rum_update_beacon(struct ieee80211vap *, int); 233static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 234 const struct ieee80211_bpf_params *); 235static void rum_scan_start(struct ieee80211com *); 236static void rum_scan_end(struct ieee80211com *); 237static void rum_set_channel(struct ieee80211com *); 238static int rum_get_rssi(struct rum_softc *, uint8_t); 239static void rum_ratectl_start(struct rum_softc *, 240 struct ieee80211_node *); 241static void rum_ratectl_timeout(void *); 242static void rum_ratectl_task(void *, int); 243static int rum_pause(struct rum_softc *, int); 244 245static const struct { 246 uint32_t reg; 247 uint32_t val; 248} rum_def_mac[] = { 249 { RT2573_TXRX_CSR0, 0x025fb032 }, 250 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 251 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 252 { RT2573_TXRX_CSR3, 0x00858687 }, 253 { RT2573_TXRX_CSR7, 0x2e31353b }, 254 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 255 { RT2573_TXRX_CSR15, 0x0000000f }, 256 { RT2573_MAC_CSR6, 0x00000fff }, 257 { RT2573_MAC_CSR8, 0x016c030a }, 258 { RT2573_MAC_CSR10, 0x00000718 }, 259 { RT2573_MAC_CSR12, 0x00000004 }, 260 { RT2573_MAC_CSR13, 0x00007f00 }, 261 { RT2573_SEC_CSR0, 0x00000000 }, 262 { RT2573_SEC_CSR1, 0x00000000 }, 263 { RT2573_SEC_CSR5, 0x00000000 }, 264 { RT2573_PHY_CSR1, 0x000023b0 }, 265 { RT2573_PHY_CSR5, 0x00040a06 }, 266 { RT2573_PHY_CSR6, 0x00080606 }, 267 { RT2573_PHY_CSR7, 0x00000408 }, 268 { RT2573_AIFSN_CSR, 0x00002273 }, 269 { RT2573_CWMIN_CSR, 0x00002344 }, 270 { RT2573_CWMAX_CSR, 0x000034aa } 271}; 272 273static const struct { 274 uint8_t reg; 275 uint8_t val; 276} rum_def_bbp[] = { 277 { 3, 0x80 }, 278 { 15, 0x30 }, 279 { 17, 0x20 }, 280 { 21, 0xc8 }, 281 { 22, 0x38 }, 282 { 23, 0x06 }, 283 { 24, 0xfe }, 284 { 25, 0x0a }, 285 { 26, 0x0d }, 286 { 32, 0x0b }, 287 { 34, 0x12 }, 288 { 37, 0x07 }, 289 { 39, 0xf8 }, 290 { 41, 0x60 }, 291 { 53, 0x10 }, 292 { 54, 0x18 }, 293 { 60, 0x10 }, 294 { 61, 0x04 }, 295 { 62, 0x04 }, 296 { 75, 0xfe }, 297 { 86, 0xfe }, 298 { 88, 0xfe }, 299 { 90, 0x0f }, 300 { 99, 0x00 }, 301 { 102, 0x16 }, 302 { 107, 0x04 } 303}; 304 305static const struct rfprog { 306 uint8_t chan; 307 uint32_t r1, r2, r3, r4; 308} rum_rf5226[] = { 309 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 310 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 311 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 312 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 313 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 314 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 315 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 316 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 317 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 318 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 319 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 320 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 321 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 322 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 323 324 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 325 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 326 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 327 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 328 329 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 330 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 331 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 332 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 333 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 334 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 335 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 336 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 337 338 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 339 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 340 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 341 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 342 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 343 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 344 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 345 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 346 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 347 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 348 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 349 350 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 351 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 352 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 353 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 354 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 355}, rum_rf5225[] = { 356 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 357 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 358 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 359 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 360 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 361 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 362 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 363 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 364 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 365 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 366 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 367 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 368 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 369 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 370 371 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 372 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 373 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 374 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 375 376 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 377 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 378 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 379 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 380 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 381 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 382 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 383 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 384 385 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 386 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 387 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 388 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 389 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 390 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 391 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 392 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 393 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 394 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 395 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 396 397 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 398 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 399 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 400 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 401 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 402}; 403 404static const struct usb_config rum_config[RUM_N_TRANSFER] = { 405 [RUM_BULK_WR] = { 406 .type = UE_BULK, 407 .endpoint = UE_ADDR_ANY, 408 .direction = UE_DIR_OUT, 409 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 410 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 411 .callback = rum_bulk_write_callback, 412 .timeout = 5000, /* ms */ 413 }, 414 [RUM_BULK_RD] = { 415 .type = UE_BULK, 416 .endpoint = UE_ADDR_ANY, 417 .direction = UE_DIR_IN, 418 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 419 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 420 .callback = rum_bulk_read_callback, 421 }, 422}; 423 424static int 425rum_match(device_t self) 426{ 427 struct usb_attach_arg *uaa = device_get_ivars(self); 428 429 if (uaa->usb_mode != USB_MODE_HOST) 430 return (ENXIO); 431 if (uaa->info.bConfigIndex != 0) 432 return (ENXIO); 433 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 434 return (ENXIO); 435 436 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 437} 438 439static int 440rum_attach(device_t self) 441{ 442 struct usb_attach_arg *uaa = device_get_ivars(self); 443 struct rum_softc *sc = device_get_softc(self); 444 struct ieee80211com *ic = &sc->sc_ic; 445 uint8_t iface_index, bands; 446 uint32_t tmp; 447 int error, ntries; 448 449 device_set_usb_desc(self); 450 sc->sc_udev = uaa->device; 451 sc->sc_dev = self; 452 453 RUM_LOCK_INIT(sc); 454 RUM_CMDQ_LOCK_INIT(sc); 455 mbufq_init(&sc->sc_snd, ifqmaxlen); 456 457 iface_index = RT2573_IFACE_INDEX; 458 error = usbd_transfer_setup(uaa->device, &iface_index, 459 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 460 if (error) { 461 device_printf(self, "could not allocate USB transfers, " 462 "err=%s\n", usbd_errstr(error)); 463 goto detach; 464 } 465 466 RUM_LOCK(sc); 467 /* retrieve RT2573 rev. no */ 468 for (ntries = 0; ntries < 100; ntries++) { 469 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 470 break; 471 if (rum_pause(sc, hz / 100)) 472 break; 473 } 474 if (ntries == 100) { 475 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 476 RUM_UNLOCK(sc); 477 goto detach; 478 } 479 480 /* retrieve MAC address and various other things from EEPROM */ 481 rum_read_eeprom(sc); 482 483 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 484 tmp, rum_get_rf(sc->rf_rev)); 485 486 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 487 RUM_UNLOCK(sc); 488 489 ic->ic_softc = sc; 490 ic->ic_name = device_get_nameunit(self); 491 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 492 493 /* set device capabilities */ 494 ic->ic_caps = 495 IEEE80211_C_STA /* station mode supported */ 496 | IEEE80211_C_IBSS /* IBSS mode supported */ 497 | IEEE80211_C_MONITOR /* monitor mode supported */ 498 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 499 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 500 | IEEE80211_C_TXPMGT /* tx power management */ 501 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 502 | IEEE80211_C_SHSLOT /* short slot time supported */ 503 | IEEE80211_C_BGSCAN /* bg scanning supported */ 504 | IEEE80211_C_WPA /* 802.11i */ 505 ; 506 507 bands = 0; 508 setbit(&bands, IEEE80211_MODE_11B); 509 setbit(&bands, IEEE80211_MODE_11G); 510 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 511 setbit(&bands, IEEE80211_MODE_11A); 512 ieee80211_init_channels(ic, NULL, &bands); 513 514 ieee80211_ifattach(ic); 515 ic->ic_update_promisc = rum_update_promisc; 516 ic->ic_raw_xmit = rum_raw_xmit; 517 ic->ic_scan_start = rum_scan_start; 518 ic->ic_scan_end = rum_scan_end; 519 ic->ic_set_channel = rum_set_channel; 520 ic->ic_transmit = rum_transmit; 521 ic->ic_parent = rum_parent; 522 ic->ic_vap_create = rum_vap_create; 523 ic->ic_vap_delete = rum_vap_delete; 524 ic->ic_updateslot = rum_update_slot; 525 ic->ic_update_mcast = rum_update_mcast; 526 527 ieee80211_radiotap_attach(ic, 528 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 529 RT2573_TX_RADIOTAP_PRESENT, 530 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 531 RT2573_RX_RADIOTAP_PRESENT); 532 533 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 534 535 if (bootverbose) 536 ieee80211_announce(ic); 537 538 return (0); 539 540detach: 541 rum_detach(self); 542 return (ENXIO); /* failure */ 543} 544 545static int 546rum_detach(device_t self) 547{ 548 struct rum_softc *sc = device_get_softc(self); 549 struct ieee80211com *ic = &sc->sc_ic; 550 551 /* Prevent further ioctls */ 552 RUM_LOCK(sc); 553 sc->sc_detached = 1; 554 RUM_UNLOCK(sc); 555 556 /* stop all USB transfers */ 557 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 558 559 /* free TX list, if any */ 560 RUM_LOCK(sc); 561 rum_unsetup_tx_list(sc); 562 RUM_UNLOCK(sc); 563 564 if (ic->ic_softc == sc) { 565 ieee80211_draintask(ic, &sc->cmdq_task); 566 ieee80211_ifdetach(ic); 567 } 568 569 mbufq_drain(&sc->sc_snd); 570 RUM_CMDQ_LOCK_DESTROY(sc); 571 RUM_LOCK_DESTROY(sc); 572 573 return (0); 574} 575 576static usb_error_t 577rum_do_request(struct rum_softc *sc, 578 struct usb_device_request *req, void *data) 579{ 580 usb_error_t err; 581 int ntries = 10; 582 583 while (ntries--) { 584 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 585 req, data, 0, NULL, 250 /* ms */); 586 if (err == 0) 587 break; 588 589 DPRINTFN(1, "Control request failed, %s (retrying)\n", 590 usbd_errstr(err)); 591 if (rum_pause(sc, hz / 100)) 592 break; 593 } 594 return (err); 595} 596 597static struct ieee80211vap * 598rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 599 enum ieee80211_opmode opmode, int flags, 600 const uint8_t bssid[IEEE80211_ADDR_LEN], 601 const uint8_t mac[IEEE80211_ADDR_LEN]) 602{ 603 struct rum_softc *sc = ic->ic_softc; 604 struct rum_vap *rvp; 605 struct ieee80211vap *vap; 606 607 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 608 return NULL; 609 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 610 vap = &rvp->vap; 611 /* enable s/w bmiss handling for sta mode */ 612 613 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 614 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 615 /* out of memory */ 616 free(rvp, M_80211_VAP); 617 return (NULL); 618 } 619 620 /* override state transition machine */ 621 rvp->newstate = vap->iv_newstate; 622 vap->iv_newstate = rum_newstate; 623 vap->iv_update_beacon = rum_update_beacon; 624 625 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 626 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 627 ieee80211_ratectl_init(vap); 628 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 629 /* complete setup */ 630 ieee80211_vap_attach(vap, ieee80211_media_change, 631 ieee80211_media_status, mac); 632 ic->ic_opmode = opmode; 633 return vap; 634} 635 636static void 637rum_vap_delete(struct ieee80211vap *vap) 638{ 639 struct rum_vap *rvp = RUM_VAP(vap); 640 struct ieee80211com *ic = vap->iv_ic; 641 642 m_freem(rvp->bcn_mbuf); 643 usb_callout_drain(&rvp->ratectl_ch); 644 ieee80211_draintask(ic, &rvp->ratectl_task); 645 ieee80211_ratectl_deinit(vap); 646 ieee80211_vap_detach(vap); 647 free(rvp, M_80211_VAP); 648} 649 650static void 651rum_cmdq_cb(void *arg, int pending) 652{ 653 struct rum_softc *sc = arg; 654 struct rum_cmdq *rc; 655 656 RUM_CMDQ_LOCK(sc); 657 while (sc->cmdq[sc->cmdq_first].func != NULL) { 658 rc = &sc->cmdq[sc->cmdq_first]; 659 RUM_CMDQ_UNLOCK(sc); 660 661 RUM_LOCK(sc); 662 rc->func(sc, &rc->data, rc->rn_id, rc->rvp_id); 663 RUM_UNLOCK(sc); 664 665 RUM_CMDQ_LOCK(sc); 666 memset(rc, 0, sizeof (*rc)); 667 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 668 } 669 RUM_CMDQ_UNLOCK(sc); 670} 671 672static int 673rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 674 uint8_t rn_id, uint8_t rvp_id, CMD_FUNC_PROTO) 675{ 676 struct ieee80211com *ic = &sc->sc_ic; 677 678 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 679 680 RUM_CMDQ_LOCK(sc); 681 if (sc->cmdq[sc->cmdq_last].func != NULL) { 682 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 683 RUM_CMDQ_UNLOCK(sc); 684 685 return EAGAIN; 686 } 687 688 if (ptr != NULL) 689 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 690 sc->cmdq[sc->cmdq_last].rn_id = rn_id; 691 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 692 sc->cmdq[sc->cmdq_last].func = func; 693 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 694 RUM_CMDQ_UNLOCK(sc); 695 696 ieee80211_runtask(ic, &sc->cmdq_task); 697 698 return 0; 699} 700 701static void 702rum_tx_free(struct rum_tx_data *data, int txerr) 703{ 704 struct rum_softc *sc = data->sc; 705 706 if (data->m != NULL) { 707 ieee80211_tx_complete(data->ni, data->m, txerr); 708 data->m = NULL; 709 data->ni = NULL; 710 } 711 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 712 sc->tx_nfree++; 713} 714 715static void 716rum_setup_tx_list(struct rum_softc *sc) 717{ 718 struct rum_tx_data *data; 719 int i; 720 721 sc->tx_nfree = 0; 722 STAILQ_INIT(&sc->tx_q); 723 STAILQ_INIT(&sc->tx_free); 724 725 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 726 data = &sc->tx_data[i]; 727 728 data->sc = sc; 729 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 730 sc->tx_nfree++; 731 } 732} 733 734static void 735rum_unsetup_tx_list(struct rum_softc *sc) 736{ 737 struct rum_tx_data *data; 738 int i; 739 740 /* make sure any subsequent use of the queues will fail */ 741 sc->tx_nfree = 0; 742 STAILQ_INIT(&sc->tx_q); 743 STAILQ_INIT(&sc->tx_free); 744 745 /* free up all node references and mbufs */ 746 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 747 data = &sc->tx_data[i]; 748 749 if (data->m != NULL) { 750 m_freem(data->m); 751 data->m = NULL; 752 } 753 if (data->ni != NULL) { 754 ieee80211_free_node(data->ni); 755 data->ni = NULL; 756 } 757 } 758} 759 760static int 761rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 762{ 763 struct rum_vap *rvp = RUM_VAP(vap); 764 struct ieee80211com *ic = vap->iv_ic; 765 struct rum_softc *sc = ic->ic_softc; 766 const struct ieee80211_txparam *tp; 767 enum ieee80211_state ostate; 768 struct ieee80211_node *ni; 769 int ret; 770 771 ostate = vap->iv_state; 772 DPRINTF("%s -> %s\n", 773 ieee80211_state_name[ostate], 774 ieee80211_state_name[nstate]); 775 776 IEEE80211_UNLOCK(ic); 777 RUM_LOCK(sc); 778 usb_callout_stop(&rvp->ratectl_ch); 779 780 switch (nstate) { 781 case IEEE80211_S_INIT: 782 if (ostate == IEEE80211_S_RUN) 783 rum_abort_tsf_sync(sc); 784 785 break; 786 787 case IEEE80211_S_RUN: 788 ni = ieee80211_ref_node(vap->iv_bss); 789 790 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 791 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 792 ret = EINVAL; 793 goto run_fail; 794 } 795 rum_update_slot_cb(sc, NULL, 0, 0); 796 rum_enable_mrr(sc); 797 rum_set_txpreamble(sc); 798 rum_set_basicrates(sc); 799 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 800 rum_set_bssid(sc, sc->sc_bssid); 801 } 802 803 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 804 vap->iv_opmode == IEEE80211_M_IBSS) { 805 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 806 goto run_fail; 807 } 808 809 if (vap->iv_opmode != IEEE80211_M_MONITOR && 810 vap->iv_opmode != IEEE80211_M_AHDEMO) { 811 if ((ret = rum_enable_tsf_sync(sc)) != 0) 812 goto run_fail; 813 } else 814 rum_enable_tsf(sc); 815 816 /* enable automatic rate adaptation */ 817 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 818 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 819 rum_ratectl_start(sc, ni); 820 ieee80211_free_node(ni); 821 break; 822 default: 823 break; 824 } 825 RUM_UNLOCK(sc); 826 IEEE80211_LOCK(ic); 827 return (rvp->newstate(vap, nstate, arg)); 828 829run_fail: 830 RUM_UNLOCK(sc); 831 IEEE80211_LOCK(ic); 832 ieee80211_free_node(ni); 833 return ret; 834} 835 836static void 837rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 838{ 839 struct rum_softc *sc = usbd_xfer_softc(xfer); 840 struct ieee80211vap *vap; 841 struct rum_tx_data *data; 842 struct mbuf *m; 843 struct usb_page_cache *pc; 844 unsigned int len; 845 int actlen, sumlen; 846 847 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 848 849 switch (USB_GET_STATE(xfer)) { 850 case USB_ST_TRANSFERRED: 851 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 852 853 /* free resources */ 854 data = usbd_xfer_get_priv(xfer); 855 rum_tx_free(data, 0); 856 usbd_xfer_set_priv(xfer, NULL); 857 858 /* FALLTHROUGH */ 859 case USB_ST_SETUP: 860tr_setup: 861 data = STAILQ_FIRST(&sc->tx_q); 862 if (data) { 863 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 864 m = data->m; 865 866 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 867 DPRINTFN(0, "data overflow, %u bytes\n", 868 m->m_pkthdr.len); 869 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 870 } 871 pc = usbd_xfer_get_frame(xfer, 0); 872 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 873 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 874 m->m_pkthdr.len); 875 876 vap = data->ni->ni_vap; 877 if (ieee80211_radiotap_active_vap(vap)) { 878 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 879 880 tap->wt_flags = 0; 881 tap->wt_rate = data->rate; 882 rum_get_tsf(sc, &tap->wt_tsf); 883 tap->wt_antenna = sc->tx_ant; 884 885 ieee80211_radiotap_tx(vap, m); 886 } 887 888 /* align end on a 4-bytes boundary */ 889 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 890 if ((len % 64) == 0) 891 len += 4; 892 893 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 894 m->m_pkthdr.len, len); 895 896 usbd_xfer_set_frame_len(xfer, 0, len); 897 usbd_xfer_set_priv(xfer, data); 898 899 usbd_transfer_submit(xfer); 900 } 901 rum_start(sc); 902 break; 903 904 default: /* Error */ 905 DPRINTFN(11, "transfer error, %s\n", 906 usbd_errstr(error)); 907 908 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 909 data = usbd_xfer_get_priv(xfer); 910 if (data != NULL) { 911 rum_tx_free(data, error); 912 usbd_xfer_set_priv(xfer, NULL); 913 } 914 915 if (error != USB_ERR_CANCELLED) { 916 if (error == USB_ERR_TIMEOUT) 917 device_printf(sc->sc_dev, "device timeout\n"); 918 919 /* 920 * Try to clear stall first, also if other 921 * errors occur, hence clearing stall 922 * introduces a 50 ms delay: 923 */ 924 usbd_xfer_set_stall(xfer); 925 goto tr_setup; 926 } 927 break; 928 } 929} 930 931static void 932rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 933{ 934 struct rum_softc *sc = usbd_xfer_softc(xfer); 935 struct ieee80211com *ic = &sc->sc_ic; 936 struct ieee80211_frame_min *wh; 937 struct ieee80211_node *ni; 938 struct mbuf *m = NULL; 939 struct usb_page_cache *pc; 940 uint32_t flags; 941 uint8_t rssi = 0; 942 int len; 943 944 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 945 946 switch (USB_GET_STATE(xfer)) { 947 case USB_ST_TRANSFERRED: 948 949 DPRINTFN(15, "rx done, actlen=%d\n", len); 950 951 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 952 DPRINTF("%s: xfer too short %d\n", 953 device_get_nameunit(sc->sc_dev), len); 954 counter_u64_add(ic->ic_ierrors, 1); 955 goto tr_setup; 956 } 957 958 len -= RT2573_RX_DESC_SIZE; 959 pc = usbd_xfer_get_frame(xfer, 0); 960 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 961 962 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 963 flags = le32toh(sc->sc_rx_desc.flags); 964 if (flags & RT2573_RX_CRC_ERROR) { 965 /* 966 * This should not happen since we did not 967 * request to receive those frames when we 968 * filled RUM_TXRX_CSR2: 969 */ 970 DPRINTFN(5, "PHY or CRC error\n"); 971 counter_u64_add(ic->ic_ierrors, 1); 972 goto tr_setup; 973 } 974 975 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 976 if (m == NULL) { 977 DPRINTF("could not allocate mbuf\n"); 978 counter_u64_add(ic->ic_ierrors, 1); 979 goto tr_setup; 980 } 981 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 982 mtod(m, uint8_t *), len); 983 984 wh = mtod(m, struct ieee80211_frame_min *); 985 986 /* finalize mbuf */ 987 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 988 989 if (ieee80211_radiotap_active(ic)) { 990 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 991 992 tap->wr_flags = 0; 993 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 994 (flags & RT2573_RX_OFDM) ? 995 IEEE80211_T_OFDM : IEEE80211_T_CCK); 996 rum_get_tsf(sc, &tap->wr_tsf); 997 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 998 tap->wr_antnoise = RT2573_NOISE_FLOOR; 999 tap->wr_antenna = sc->rx_ant; 1000 } 1001 /* FALLTHROUGH */ 1002 case USB_ST_SETUP: 1003tr_setup: 1004 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1005 usbd_transfer_submit(xfer); 1006 1007 /* 1008 * At the end of a USB callback it is always safe to unlock 1009 * the private mutex of a device! That is why we do the 1010 * "ieee80211_input" here, and not some lines up! 1011 */ 1012 RUM_UNLOCK(sc); 1013 if (m) { 1014 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1015 ni = ieee80211_find_rxnode(ic, wh); 1016 else 1017 ni = NULL; 1018 1019 if (ni != NULL) { 1020 (void) ieee80211_input(ni, m, rssi, 1021 RT2573_NOISE_FLOOR); 1022 ieee80211_free_node(ni); 1023 } else 1024 (void) ieee80211_input_all(ic, m, rssi, 1025 RT2573_NOISE_FLOOR); 1026 } 1027 RUM_LOCK(sc); 1028 rum_start(sc); 1029 return; 1030 1031 default: /* Error */ 1032 if (error != USB_ERR_CANCELLED) { 1033 /* try to clear stall first */ 1034 usbd_xfer_set_stall(xfer); 1035 goto tr_setup; 1036 } 1037 return; 1038 } 1039} 1040 1041static uint8_t 1042rum_plcp_signal(int rate) 1043{ 1044 switch (rate) { 1045 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1046 case 12: return 0xb; 1047 case 18: return 0xf; 1048 case 24: return 0xa; 1049 case 36: return 0xe; 1050 case 48: return 0x9; 1051 case 72: return 0xd; 1052 case 96: return 0x8; 1053 case 108: return 0xc; 1054 1055 /* CCK rates (NB: not IEEE std, device-specific) */ 1056 case 2: return 0x0; 1057 case 4: return 0x1; 1058 case 11: return 0x2; 1059 case 22: return 0x3; 1060 } 1061 return 0xff; /* XXX unsupported/unknown rate */ 1062} 1063 1064static void 1065rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1066 uint32_t flags, uint16_t xflags, int len, int rate) 1067{ 1068 struct ieee80211com *ic = &sc->sc_ic; 1069 uint16_t plcp_length; 1070 int remainder; 1071 1072 desc->flags = htole32(flags); 1073 desc->flags |= htole32(RT2573_TX_VALID); 1074 desc->flags |= htole32(len << 16); 1075 1076 desc->xflags = htole16(xflags); 1077 1078 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1079 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1080 1081 /* setup PLCP fields */ 1082 desc->plcp_signal = rum_plcp_signal(rate); 1083 desc->plcp_service = 4; 1084 1085 len += IEEE80211_CRC_LEN; 1086 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1087 desc->flags |= htole32(RT2573_TX_OFDM); 1088 1089 plcp_length = len & 0xfff; 1090 desc->plcp_length_hi = plcp_length >> 6; 1091 desc->plcp_length_lo = plcp_length & 0x3f; 1092 } else { 1093 if (rate == 0) 1094 rate = 2; /* avoid division by zero */ 1095 plcp_length = (16 * len + rate - 1) / rate; 1096 if (rate == 22) { 1097 remainder = (16 * len) % 22; 1098 if (remainder != 0 && remainder < 7) 1099 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1100 } 1101 desc->plcp_length_hi = plcp_length >> 8; 1102 desc->plcp_length_lo = plcp_length & 0xff; 1103 1104 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1105 desc->plcp_signal |= 0x08; 1106 } 1107} 1108 1109static int 1110rum_sendprot(struct rum_softc *sc, 1111 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1112{ 1113 struct ieee80211com *ic = ni->ni_ic; 1114 const struct ieee80211_frame *wh; 1115 struct rum_tx_data *data; 1116 struct mbuf *mprot; 1117 int protrate, pktlen, flags, isshort; 1118 uint16_t dur; 1119 1120 RUM_LOCK_ASSERT(sc); 1121 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1122 ("protection %d", prot)); 1123 1124 wh = mtod(m, const struct ieee80211_frame *); 1125 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1126 1127 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1128 1129 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1130 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1131 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1132 flags = RT2573_TX_MORE_FRAG; 1133 if (prot == IEEE80211_PROT_RTSCTS) { 1134 /* NB: CTS is the same size as an ACK */ 1135 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1136 flags |= RT2573_TX_NEED_ACK; 1137 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1138 } else { 1139 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1140 } 1141 if (mprot == NULL) { 1142 /* XXX stat + msg */ 1143 return (ENOBUFS); 1144 } 1145 data = STAILQ_FIRST(&sc->tx_free); 1146 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1147 sc->tx_nfree--; 1148 1149 data->m = mprot; 1150 data->ni = ieee80211_ref_node(ni); 1151 data->rate = protrate; 1152 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1153 1154 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1155 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1156 1157 return 0; 1158} 1159 1160static int 1161rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1162{ 1163 struct ieee80211vap *vap = ni->ni_vap; 1164 struct ieee80211com *ic = &sc->sc_ic; 1165 struct rum_tx_data *data; 1166 struct ieee80211_frame *wh; 1167 const struct ieee80211_txparam *tp; 1168 struct ieee80211_key *k; 1169 uint32_t flags = 0; 1170 uint16_t dur; 1171 1172 RUM_LOCK_ASSERT(sc); 1173 1174 data = STAILQ_FIRST(&sc->tx_free); 1175 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1176 sc->tx_nfree--; 1177 1178 wh = mtod(m0, struct ieee80211_frame *); 1179 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1180 k = ieee80211_crypto_encap(ni, m0); 1181 if (k == NULL) 1182 return (ENOBUFS); 1183 1184 wh = mtod(m0, struct ieee80211_frame *); 1185 } 1186 1187 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1188 1189 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1190 flags |= RT2573_TX_NEED_ACK; 1191 1192 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1193 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1194 USETW(wh->i_dur, dur); 1195 1196 /* tell hardware to add timestamp for probe responses */ 1197 if ((wh->i_fc[0] & 1198 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1199 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1200 flags |= RT2573_TX_TIMESTAMP; 1201 } 1202 1203 data->m = m0; 1204 data->ni = ni; 1205 data->rate = tp->mgmtrate; 1206 1207 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1208 1209 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1210 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1211 1212 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1213 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1214 1215 return (0); 1216} 1217 1218static int 1219rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1220 const struct ieee80211_bpf_params *params) 1221{ 1222 struct ieee80211com *ic = ni->ni_ic; 1223 struct rum_tx_data *data; 1224 uint32_t flags; 1225 int rate, error; 1226 1227 RUM_LOCK_ASSERT(sc); 1228 1229 rate = params->ibp_rate0; 1230 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1231 return (EINVAL); 1232 1233 flags = 0; 1234 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1235 flags |= RT2573_TX_NEED_ACK; 1236 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1237 error = rum_sendprot(sc, m0, ni, 1238 params->ibp_flags & IEEE80211_BPF_RTS ? 1239 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1240 rate); 1241 if (error || sc->tx_nfree == 0) 1242 return (ENOBUFS); 1243 1244 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1245 } 1246 1247 data = STAILQ_FIRST(&sc->tx_free); 1248 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1249 sc->tx_nfree--; 1250 1251 data->m = m0; 1252 data->ni = ni; 1253 data->rate = rate; 1254 1255 /* XXX need to setup descriptor ourself */ 1256 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1257 1258 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1259 m0->m_pkthdr.len, rate); 1260 1261 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1262 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1263 1264 return 0; 1265} 1266 1267static int 1268rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1269{ 1270 struct ieee80211vap *vap = ni->ni_vap; 1271 struct ieee80211com *ic = &sc->sc_ic; 1272 struct rum_tx_data *data; 1273 struct ieee80211_frame *wh; 1274 const struct ieee80211_txparam *tp; 1275 struct ieee80211_key *k; 1276 uint32_t flags = 0; 1277 uint16_t dur; 1278 int error, rate; 1279 1280 RUM_LOCK_ASSERT(sc); 1281 1282 wh = mtod(m0, struct ieee80211_frame *); 1283 1284 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1285 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1286 rate = tp->mcastrate; 1287 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1288 rate = tp->ucastrate; 1289 else 1290 rate = ni->ni_txrate; 1291 1292 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1293 k = ieee80211_crypto_encap(ni, m0); 1294 if (k == NULL) { 1295 m_freem(m0); 1296 return ENOBUFS; 1297 } 1298 1299 /* packet header may have moved, reset our local pointer */ 1300 wh = mtod(m0, struct ieee80211_frame *); 1301 } 1302 1303 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1304 int prot = IEEE80211_PROT_NONE; 1305 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1306 prot = IEEE80211_PROT_RTSCTS; 1307 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1308 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1309 prot = ic->ic_protmode; 1310 if (prot != IEEE80211_PROT_NONE) { 1311 error = rum_sendprot(sc, m0, ni, prot, rate); 1312 if (error || sc->tx_nfree == 0) { 1313 m_freem(m0); 1314 return ENOBUFS; 1315 } 1316 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1317 } 1318 } 1319 1320 data = STAILQ_FIRST(&sc->tx_free); 1321 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1322 sc->tx_nfree--; 1323 1324 data->m = m0; 1325 data->ni = ni; 1326 data->rate = rate; 1327 1328 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1329 flags |= RT2573_TX_NEED_ACK; 1330 flags |= RT2573_TX_MORE_FRAG; 1331 1332 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1333 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1334 USETW(wh->i_dur, dur); 1335 } 1336 1337 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1338 1339 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1340 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1341 1342 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1343 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1344 1345 return 0; 1346} 1347 1348static int 1349rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1350{ 1351 struct rum_softc *sc = ic->ic_softc; 1352 int error; 1353 1354 RUM_LOCK(sc); 1355 if (!sc->sc_running) { 1356 RUM_UNLOCK(sc); 1357 return (ENXIO); 1358 } 1359 error = mbufq_enqueue(&sc->sc_snd, m); 1360 if (error) { 1361 RUM_UNLOCK(sc); 1362 return (error); 1363 } 1364 rum_start(sc); 1365 RUM_UNLOCK(sc); 1366 1367 return (0); 1368} 1369 1370static void 1371rum_start(struct rum_softc *sc) 1372{ 1373 struct ieee80211_node *ni; 1374 struct mbuf *m; 1375 1376 RUM_LOCK_ASSERT(sc); 1377 1378 if (!sc->sc_running) 1379 return; 1380 1381 while (sc->tx_nfree >= RUM_TX_MINFREE && 1382 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1383 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1384 if (rum_tx_data(sc, m, ni) != 0) { 1385 if_inc_counter(ni->ni_vap->iv_ifp, 1386 IFCOUNTER_OERRORS, 1); 1387 ieee80211_free_node(ni); 1388 break; 1389 } 1390 } 1391} 1392 1393static void 1394rum_parent(struct ieee80211com *ic) 1395{ 1396 struct rum_softc *sc = ic->ic_softc; 1397 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1398 1399 RUM_LOCK(sc); 1400 if (sc->sc_detached) { 1401 RUM_UNLOCK(sc); 1402 return; 1403 } 1404 RUM_UNLOCK(sc); 1405 1406 if (ic->ic_nrunning > 0) { 1407 if (rum_init(sc) == 0) 1408 ieee80211_start_all(ic); 1409 else 1410 ieee80211_stop(vap); 1411 } else 1412 rum_stop(sc); 1413} 1414 1415static void 1416rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1417{ 1418 struct usb_device_request req; 1419 usb_error_t error; 1420 1421 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1422 req.bRequest = RT2573_READ_EEPROM; 1423 USETW(req.wValue, 0); 1424 USETW(req.wIndex, addr); 1425 USETW(req.wLength, len); 1426 1427 error = rum_do_request(sc, &req, buf); 1428 if (error != 0) { 1429 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1430 usbd_errstr(error)); 1431 } 1432} 1433 1434static uint32_t 1435rum_read(struct rum_softc *sc, uint16_t reg) 1436{ 1437 uint32_t val; 1438 1439 rum_read_multi(sc, reg, &val, sizeof val); 1440 1441 return le32toh(val); 1442} 1443 1444static void 1445rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1446{ 1447 struct usb_device_request req; 1448 usb_error_t error; 1449 1450 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1451 req.bRequest = RT2573_READ_MULTI_MAC; 1452 USETW(req.wValue, 0); 1453 USETW(req.wIndex, reg); 1454 USETW(req.wLength, len); 1455 1456 error = rum_do_request(sc, &req, buf); 1457 if (error != 0) { 1458 device_printf(sc->sc_dev, 1459 "could not multi read MAC register: %s\n", 1460 usbd_errstr(error)); 1461 } 1462} 1463 1464static usb_error_t 1465rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1466{ 1467 uint32_t tmp = htole32(val); 1468 1469 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1470} 1471 1472static usb_error_t 1473rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1474{ 1475 struct usb_device_request req; 1476 usb_error_t error; 1477 size_t offset; 1478 1479 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1480 req.bRequest = RT2573_WRITE_MULTI_MAC; 1481 USETW(req.wValue, 0); 1482 1483 /* write at most 64 bytes at a time */ 1484 for (offset = 0; offset < len; offset += 64) { 1485 USETW(req.wIndex, reg + offset); 1486 USETW(req.wLength, MIN(len - offset, 64)); 1487 1488 error = rum_do_request(sc, &req, (char *)buf + offset); 1489 if (error != 0) { 1490 device_printf(sc->sc_dev, 1491 "could not multi write MAC register: %s\n", 1492 usbd_errstr(error)); 1493 return (error); 1494 } 1495 } 1496 1497 return (USB_ERR_NORMAL_COMPLETION); 1498} 1499 1500static usb_error_t 1501rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1502{ 1503 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1504} 1505 1506static usb_error_t 1507rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1508{ 1509 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1510} 1511 1512static usb_error_t 1513rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1514{ 1515 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1516} 1517 1518static int 1519rum_bbp_busy(struct rum_softc *sc) 1520{ 1521 int ntries; 1522 1523 for (ntries = 0; ntries < 100; ntries++) { 1524 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1525 break; 1526 if (rum_pause(sc, hz / 100)) 1527 break; 1528 } 1529 if (ntries == 100) 1530 return (ETIMEDOUT); 1531 1532 return (0); 1533} 1534 1535static void 1536rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1537{ 1538 uint32_t tmp; 1539 1540 DPRINTFN(2, "reg=0x%08x\n", reg); 1541 1542 if (rum_bbp_busy(sc) != 0) { 1543 device_printf(sc->sc_dev, "could not write to BBP\n"); 1544 return; 1545 } 1546 1547 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1548 rum_write(sc, RT2573_PHY_CSR3, tmp); 1549} 1550 1551static uint8_t 1552rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1553{ 1554 uint32_t val; 1555 int ntries; 1556 1557 DPRINTFN(2, "reg=0x%08x\n", reg); 1558 1559 if (rum_bbp_busy(sc) != 0) { 1560 device_printf(sc->sc_dev, "could not read BBP\n"); 1561 return 0; 1562 } 1563 1564 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1565 rum_write(sc, RT2573_PHY_CSR3, val); 1566 1567 for (ntries = 0; ntries < 100; ntries++) { 1568 val = rum_read(sc, RT2573_PHY_CSR3); 1569 if (!(val & RT2573_BBP_BUSY)) 1570 return val & 0xff; 1571 if (rum_pause(sc, hz / 100)) 1572 break; 1573 } 1574 1575 device_printf(sc->sc_dev, "could not read BBP\n"); 1576 return 0; 1577} 1578 1579static void 1580rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1581{ 1582 uint32_t tmp; 1583 int ntries; 1584 1585 for (ntries = 0; ntries < 100; ntries++) { 1586 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1587 break; 1588 if (rum_pause(sc, hz / 100)) 1589 break; 1590 } 1591 if (ntries == 100) { 1592 device_printf(sc->sc_dev, "could not write to RF\n"); 1593 return; 1594 } 1595 1596 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1597 (reg & 3); 1598 rum_write(sc, RT2573_PHY_CSR4, tmp); 1599 1600 /* remember last written value in sc */ 1601 sc->rf_regs[reg] = val; 1602 1603 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1604} 1605 1606static void 1607rum_select_antenna(struct rum_softc *sc) 1608{ 1609 uint8_t bbp4, bbp77; 1610 uint32_t tmp; 1611 1612 bbp4 = rum_bbp_read(sc, 4); 1613 bbp77 = rum_bbp_read(sc, 77); 1614 1615 /* TBD */ 1616 1617 /* make sure Rx is disabled before switching antenna */ 1618 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1619 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1620 1621 rum_bbp_write(sc, 4, bbp4); 1622 rum_bbp_write(sc, 77, bbp77); 1623 1624 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1625} 1626 1627/* 1628 * Enable multi-rate retries for frames sent at OFDM rates. 1629 * In 802.11b/g mode, allow fallback to CCK rates. 1630 */ 1631static void 1632rum_enable_mrr(struct rum_softc *sc) 1633{ 1634 struct ieee80211com *ic = &sc->sc_ic; 1635 1636 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1637 rum_setbits(sc, RT2573_TXRX_CSR4, 1638 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1639 } else { 1640 rum_modbits(sc, RT2573_TXRX_CSR4, 1641 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1642 } 1643} 1644 1645static void 1646rum_set_txpreamble(struct rum_softc *sc) 1647{ 1648 struct ieee80211com *ic = &sc->sc_ic; 1649 1650 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1651 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1652 else 1653 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1654} 1655 1656static void 1657rum_set_basicrates(struct rum_softc *sc) 1658{ 1659 struct ieee80211com *ic = &sc->sc_ic; 1660 1661 /* update basic rate set */ 1662 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1663 /* 11b basic rates: 1, 2Mbps */ 1664 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1665 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1666 /* 11a basic rates: 6, 12, 24Mbps */ 1667 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1668 } else { 1669 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1670 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1671 } 1672} 1673 1674/* 1675 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1676 * driver. 1677 */ 1678static void 1679rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1680{ 1681 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1682 1683 /* update all BBP registers that depend on the band */ 1684 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1685 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1686 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1687 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1688 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1689 } 1690 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1691 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1692 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1693 } 1694 1695 sc->bbp17 = bbp17; 1696 rum_bbp_write(sc, 17, bbp17); 1697 rum_bbp_write(sc, 96, bbp96); 1698 rum_bbp_write(sc, 104, bbp104); 1699 1700 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1701 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1702 rum_bbp_write(sc, 75, 0x80); 1703 rum_bbp_write(sc, 86, 0x80); 1704 rum_bbp_write(sc, 88, 0x80); 1705 } 1706 1707 rum_bbp_write(sc, 35, bbp35); 1708 rum_bbp_write(sc, 97, bbp97); 1709 rum_bbp_write(sc, 98, bbp98); 1710 1711 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1712 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1713 RT2573_PA_PE_5GHZ); 1714 } else { 1715 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1716 RT2573_PA_PE_2GHZ); 1717 } 1718} 1719 1720static void 1721rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1722{ 1723 struct ieee80211com *ic = &sc->sc_ic; 1724 const struct rfprog *rfprog; 1725 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1726 int8_t power; 1727 int i, chan; 1728 1729 chan = ieee80211_chan2ieee(ic, c); 1730 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1731 return; 1732 1733 /* select the appropriate RF settings based on what EEPROM says */ 1734 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1735 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1736 1737 /* find the settings for this channel (we know it exists) */ 1738 for (i = 0; rfprog[i].chan != chan; i++); 1739 1740 power = sc->txpow[i]; 1741 if (power < 0) { 1742 bbp94 += power; 1743 power = 0; 1744 } else if (power > 31) { 1745 bbp94 += power - 31; 1746 power = 31; 1747 } 1748 1749 /* 1750 * If we are switching from the 2GHz band to the 5GHz band or 1751 * vice-versa, BBP registers need to be reprogrammed. 1752 */ 1753 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1754 rum_select_band(sc, c); 1755 rum_select_antenna(sc); 1756 } 1757 ic->ic_curchan = c; 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_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1765 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1766 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1767 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1768 1769 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1770 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1771 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1772 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1773 1774 rum_pause(sc, hz / 100); 1775 1776 /* enable smart mode for MIMO-capable RFs */ 1777 bbp3 = rum_bbp_read(sc, 3); 1778 1779 bbp3 &= ~RT2573_SMART_MODE; 1780 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1781 bbp3 |= RT2573_SMART_MODE; 1782 1783 rum_bbp_write(sc, 3, bbp3); 1784 1785 if (bbp94 != RT2573_BBPR94_DEFAULT) 1786 rum_bbp_write(sc, 94, bbp94); 1787 1788 /* give the chip some extra time to do the switchover */ 1789 rum_pause(sc, hz / 100); 1790} 1791 1792/* 1793 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1794 * and HostAP operating modes. 1795 */ 1796static int 1797rum_enable_tsf_sync(struct rum_softc *sc) 1798{ 1799 struct ieee80211com *ic = &sc->sc_ic; 1800 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1801 uint32_t tmp; 1802 1803 if (vap->iv_opmode != IEEE80211_M_STA) { 1804 /* 1805 * Change default 16ms TBTT adjustment to 8ms. 1806 * Must be done before enabling beacon generation. 1807 */ 1808 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 1809 return EIO; 1810 } 1811 1812 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1813 1814 /* set beacon interval (in 1/16ms unit) */ 1815 tmp |= vap->iv_bss->ni_intval * 16; 1816 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1817 1818 switch (vap->iv_opmode) { 1819 case IEEE80211_M_STA: 1820 /* 1821 * Local TSF is always updated with remote TSF on beacon 1822 * reception. 1823 */ 1824 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 1825 break; 1826 case IEEE80211_M_IBSS: 1827 /* 1828 * Local TSF is updated with remote TSF on beacon reception 1829 * only if the remote TSF is greater than local TSF. 1830 */ 1831 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 1832 tmp |= RT2573_BCN_TX_EN; 1833 break; 1834 case IEEE80211_M_HOSTAP: 1835 /* SYNC with nobody */ 1836 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 1837 tmp |= RT2573_BCN_TX_EN; 1838 break; 1839 default: 1840 device_printf(sc->sc_dev, 1841 "Enabling TSF failed. undefined opmode %d\n", 1842 vap->iv_opmode); 1843 return EINVAL; 1844 } 1845 1846 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 1847 return EIO; 1848 1849 return 0; 1850} 1851 1852static void 1853rum_enable_tsf(struct rum_softc *sc) 1854{ 1855 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 1856 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 1857} 1858 1859static void 1860rum_abort_tsf_sync(struct rum_softc *sc) 1861{ 1862 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 1863} 1864 1865static void 1866rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 1867{ 1868 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 1869} 1870 1871static void 1872rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rv_id, 1873 uint8_t rvp_id) 1874{ 1875 struct ieee80211com *ic = &sc->sc_ic; 1876 uint8_t slottime; 1877 1878 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1879 1880 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 1881 1882 DPRINTF("setting slot time to %uus\n", slottime); 1883} 1884 1885static void 1886rum_update_slot(struct ieee80211com *ic) 1887{ 1888 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, 0, rum_update_slot_cb); 1889} 1890 1891static void 1892rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1893{ 1894 1895 rum_write(sc, RT2573_MAC_CSR4, 1896 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 1897 rum_write(sc, RT2573_MAC_CSR5, 1898 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 1899} 1900 1901static void 1902rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1903{ 1904 1905 rum_write(sc, RT2573_MAC_CSR2, 1906 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 1907 rum_write(sc, RT2573_MAC_CSR3, 1908 addr[4] | addr[5] << 8 | 0xff << 16); 1909} 1910 1911static void 1912rum_setpromisc(struct rum_softc *sc) 1913{ 1914 struct ieee80211com *ic = &sc->sc_ic; 1915 1916 if (ic->ic_promisc == 0) 1917 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1918 else 1919 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1920 1921 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 1922 "entering" : "leaving"); 1923} 1924 1925static void 1926rum_update_promisc(struct ieee80211com *ic) 1927{ 1928 struct rum_softc *sc = ic->ic_softc; 1929 1930 RUM_LOCK(sc); 1931 if (sc->sc_running) 1932 rum_setpromisc(sc); 1933 RUM_UNLOCK(sc); 1934} 1935 1936static void 1937rum_update_mcast(struct ieee80211com *ic) 1938{ 1939 /* Ignore. */ 1940} 1941 1942static const char * 1943rum_get_rf(int rev) 1944{ 1945 switch (rev) { 1946 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1947 case RT2573_RF_2528: return "RT2528"; 1948 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1949 case RT2573_RF_5226: return "RT5226"; 1950 default: return "unknown"; 1951 } 1952} 1953 1954static void 1955rum_read_eeprom(struct rum_softc *sc) 1956{ 1957 uint16_t val; 1958#ifdef RUM_DEBUG 1959 int i; 1960#endif 1961 1962 /* read MAC address */ 1963 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 1964 1965 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1966 val = le16toh(val); 1967 sc->rf_rev = (val >> 11) & 0x1f; 1968 sc->hw_radio = (val >> 10) & 0x1; 1969 sc->rx_ant = (val >> 4) & 0x3; 1970 sc->tx_ant = (val >> 2) & 0x3; 1971 sc->nb_ant = val & 0x3; 1972 1973 DPRINTF("RF revision=%d\n", sc->rf_rev); 1974 1975 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1976 val = le16toh(val); 1977 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1978 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1979 1980 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1981 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1982 1983 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1984 val = le16toh(val); 1985 if ((val & 0xff) != 0xff) 1986 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1987 1988 /* Only [-10, 10] is valid */ 1989 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1990 sc->rssi_2ghz_corr = 0; 1991 1992 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1993 val = le16toh(val); 1994 if ((val & 0xff) != 0xff) 1995 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1996 1997 /* Only [-10, 10] is valid */ 1998 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1999 sc->rssi_5ghz_corr = 0; 2000 2001 if (sc->ext_2ghz_lna) 2002 sc->rssi_2ghz_corr -= 14; 2003 if (sc->ext_5ghz_lna) 2004 sc->rssi_5ghz_corr -= 14; 2005 2006 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2007 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2008 2009 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2010 val = le16toh(val); 2011 if ((val & 0xff) != 0xff) 2012 sc->rffreq = val & 0xff; 2013 2014 DPRINTF("RF freq=%d\n", sc->rffreq); 2015 2016 /* read Tx power for all a/b/g channels */ 2017 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2018 /* XXX default Tx power for 802.11a channels */ 2019 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2020#ifdef RUM_DEBUG 2021 for (i = 0; i < 14; i++) 2022 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2023#endif 2024 2025 /* read default values for BBP registers */ 2026 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2027#ifdef RUM_DEBUG 2028 for (i = 0; i < 14; i++) { 2029 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2030 continue; 2031 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2032 sc->bbp_prom[i].val); 2033 } 2034#endif 2035} 2036 2037static int 2038rum_bbp_wakeup(struct rum_softc *sc) 2039{ 2040 unsigned int ntries; 2041 2042 for (ntries = 0; ntries < 100; ntries++) { 2043 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2044 break; 2045 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2046 if (rum_pause(sc, hz / 100)) 2047 break; 2048 } 2049 if (ntries == 100) { 2050 device_printf(sc->sc_dev, 2051 "timeout waiting for BBP/RF to wakeup\n"); 2052 return (ETIMEDOUT); 2053 } 2054 2055 return (0); 2056} 2057 2058static int 2059rum_bbp_init(struct rum_softc *sc) 2060{ 2061 int i, ntries; 2062 2063 /* wait for BBP to be ready */ 2064 for (ntries = 0; ntries < 100; ntries++) { 2065 const uint8_t val = rum_bbp_read(sc, 0); 2066 if (val != 0 && val != 0xff) 2067 break; 2068 if (rum_pause(sc, hz / 100)) 2069 break; 2070 } 2071 if (ntries == 100) { 2072 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2073 return EIO; 2074 } 2075 2076 /* initialize BBP registers to default values */ 2077 for (i = 0; i < nitems(rum_def_bbp); i++) 2078 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2079 2080 /* write vendor-specific BBP values (from EEPROM) */ 2081 for (i = 0; i < 16; i++) { 2082 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2083 continue; 2084 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2085 } 2086 2087 return 0; 2088} 2089 2090static int 2091rum_init(struct rum_softc *sc) 2092{ 2093 struct ieee80211com *ic = &sc->sc_ic; 2094 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2095 uint32_t tmp; 2096 int i, ret; 2097 2098 RUM_LOCK(sc); 2099 if (sc->sc_running) { 2100 ret = 0; 2101 goto end; 2102 } 2103 2104 /* initialize MAC registers to default values */ 2105 for (i = 0; i < nitems(rum_def_mac); i++) 2106 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2107 2108 /* set host ready */ 2109 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2110 rum_write(sc, RT2573_MAC_CSR1, 0); 2111 2112 /* wait for BBP/RF to wakeup */ 2113 if ((ret = rum_bbp_wakeup(sc)) != 0) 2114 goto end; 2115 2116 if ((ret = rum_bbp_init(sc)) != 0) 2117 goto end; 2118 2119 /* select default channel */ 2120 rum_select_band(sc, ic->ic_curchan); 2121 rum_select_antenna(sc); 2122 rum_set_chan(sc, ic->ic_curchan); 2123 2124 /* clear STA registers */ 2125 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2126 2127 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2128 2129 /* initialize ASIC */ 2130 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2131 2132 /* 2133 * Allocate Tx and Rx xfer queues. 2134 */ 2135 rum_setup_tx_list(sc); 2136 2137 /* update Rx filter */ 2138 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2139 2140 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2141 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2142 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2143 RT2573_DROP_ACKCTS; 2144 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2145 tmp |= RT2573_DROP_TODS; 2146 if (ic->ic_promisc == 0) 2147 tmp |= RT2573_DROP_NOT_TO_ME; 2148 } 2149 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2150 2151 sc->sc_running = 1; 2152 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2153 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2154 2155end: RUM_UNLOCK(sc); 2156 2157 if (ret != 0) 2158 rum_stop(sc); 2159 2160 return ret; 2161} 2162 2163static void 2164rum_stop(struct rum_softc *sc) 2165{ 2166 2167 RUM_LOCK(sc); 2168 if (!sc->sc_running) { 2169 RUM_UNLOCK(sc); 2170 return; 2171 } 2172 sc->sc_running = 0; 2173 RUM_UNLOCK(sc); 2174 2175 /* 2176 * Drain the USB transfers, if not already drained: 2177 */ 2178 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2179 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2180 2181 RUM_LOCK(sc); 2182 rum_unsetup_tx_list(sc); 2183 2184 /* disable Rx */ 2185 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2186 2187 /* reset ASIC */ 2188 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2189 rum_write(sc, RT2573_MAC_CSR1, 0); 2190 RUM_UNLOCK(sc); 2191} 2192 2193static void 2194rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2195{ 2196 struct usb_device_request req; 2197 uint16_t reg = RT2573_MCU_CODE_BASE; 2198 usb_error_t err; 2199 2200 /* copy firmware image into NIC */ 2201 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2202 err = rum_write(sc, reg, UGETDW(ucode)); 2203 if (err) { 2204 /* firmware already loaded ? */ 2205 device_printf(sc->sc_dev, "Firmware load " 2206 "failure! (ignored)\n"); 2207 break; 2208 } 2209 } 2210 2211 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2212 req.bRequest = RT2573_MCU_CNTL; 2213 USETW(req.wValue, RT2573_MCU_RUN); 2214 USETW(req.wIndex, 0); 2215 USETW(req.wLength, 0); 2216 2217 err = rum_do_request(sc, &req, NULL); 2218 if (err != 0) { 2219 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2220 usbd_errstr(err)); 2221 } 2222 2223 /* give the chip some time to boot */ 2224 rum_pause(sc, hz / 8); 2225} 2226 2227static int 2228rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2229{ 2230 struct ieee80211com *ic = vap->iv_ic; 2231 struct rum_vap *rvp = RUM_VAP(vap); 2232 struct mbuf *m = rvp->bcn_mbuf; 2233 const struct ieee80211_txparam *tp; 2234 struct rum_tx_desc desc; 2235 2236 RUM_LOCK_ASSERT(sc); 2237 2238 if (m == NULL) 2239 return EINVAL; 2240 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2241 return EINVAL; 2242 2243 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2244 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2245 m->m_pkthdr.len, tp->mgmtrate); 2246 2247 /* copy the Tx descriptor into NIC memory */ 2248 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2249 RT2573_TX_DESC_SIZE) != 0) 2250 return EIO; 2251 2252 /* copy beacon header and payload into NIC memory */ 2253 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2254 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2255 return EIO; 2256 2257 return 0; 2258} 2259 2260static int 2261rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2262{ 2263 struct rum_vap *rvp = RUM_VAP(vap); 2264 struct ieee80211_node *ni = vap->iv_bss; 2265 struct mbuf *m; 2266 2267 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2268 return EINVAL; 2269 2270 m = ieee80211_beacon_alloc(ni, &vap->iv_bcn_off); 2271 if (m == NULL) 2272 return ENOMEM; 2273 2274 if (rvp->bcn_mbuf != NULL) 2275 m_freem(rvp->bcn_mbuf); 2276 2277 rvp->bcn_mbuf = m; 2278 2279 return (rum_set_beacon(sc, vap)); 2280} 2281 2282static void 2283rum_update_beacon_cb(struct rum_softc *sc, union sec_param *data, 2284 uint8_t rn_id, uint8_t rvp_id) 2285{ 2286 struct ieee80211vap *vap = data->vap; 2287 2288 rum_set_beacon(sc, vap); 2289} 2290 2291static void 2292rum_update_beacon(struct ieee80211vap *vap, int item) 2293{ 2294 struct ieee80211com *ic = vap->iv_ic; 2295 struct rum_softc *sc = ic->ic_softc; 2296 struct rum_vap *rvp = RUM_VAP(vap); 2297 struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off; 2298 struct ieee80211_node *ni = vap->iv_bss; 2299 struct mbuf *m = rvp->bcn_mbuf; 2300 int mcast = 0; 2301 2302 RUM_LOCK(sc); 2303 if (m == NULL) { 2304 m = ieee80211_beacon_alloc(ni, bo); 2305 if (m == NULL) { 2306 device_printf(sc->sc_dev, 2307 "%s: could not allocate beacon frame\n", __func__); 2308 RUM_UNLOCK(sc); 2309 return; 2310 } 2311 rvp->bcn_mbuf = m; 2312 } 2313 2314 switch (item) { 2315 case IEEE80211_BEACON_ERP: 2316 rum_update_slot(ic); 2317 break; 2318 case IEEE80211_BEACON_TIM: 2319 mcast = 1; /*TODO*/ 2320 break; 2321 default: 2322 break; 2323 } 2324 RUM_UNLOCK(sc); 2325 2326 setbit(bo->bo_flags, item); 2327 ieee80211_beacon_update(ni, bo, m, mcast); 2328 2329 rum_cmd_sleepable(sc, &vap, sizeof(vap), 0, 0, rum_update_beacon_cb); 2330} 2331 2332static int 2333rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2334 const struct ieee80211_bpf_params *params) 2335{ 2336 struct rum_softc *sc = ni->ni_ic->ic_softc; 2337 int ret; 2338 2339 RUM_LOCK(sc); 2340 /* prevent management frames from being sent if we're not ready */ 2341 if (!sc->sc_running) { 2342 ret = ENETDOWN; 2343 goto bad; 2344 } 2345 if (sc->tx_nfree < RUM_TX_MINFREE) { 2346 ret = EIO; 2347 goto bad; 2348 } 2349 2350 if (params == NULL) { 2351 /* 2352 * Legacy path; interpret frame contents to decide 2353 * precisely how to send the frame. 2354 */ 2355 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 2356 goto bad; 2357 } else { 2358 /* 2359 * Caller supplied explicit parameters to use in 2360 * sending the frame. 2361 */ 2362 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 2363 goto bad; 2364 } 2365 RUM_UNLOCK(sc); 2366 2367 return 0; 2368bad: 2369 RUM_UNLOCK(sc); 2370 m_freem(m); 2371 ieee80211_free_node(ni); 2372 return ret; 2373} 2374 2375static void 2376rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2377{ 2378 struct ieee80211vap *vap = ni->ni_vap; 2379 struct rum_vap *rvp = RUM_VAP(vap); 2380 2381 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2382 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2383 2384 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2385} 2386 2387static void 2388rum_ratectl_timeout(void *arg) 2389{ 2390 struct rum_vap *rvp = arg; 2391 struct ieee80211vap *vap = &rvp->vap; 2392 struct ieee80211com *ic = vap->iv_ic; 2393 2394 ieee80211_runtask(ic, &rvp->ratectl_task); 2395} 2396 2397static void 2398rum_ratectl_task(void *arg, int pending) 2399{ 2400 struct rum_vap *rvp = arg; 2401 struct ieee80211vap *vap = &rvp->vap; 2402 struct ieee80211com *ic = vap->iv_ic; 2403 struct rum_softc *sc = ic->ic_softc; 2404 struct ieee80211_node *ni; 2405 int ok, fail; 2406 int sum, retrycnt; 2407 2408 RUM_LOCK(sc); 2409 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2410 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2411 2412 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2413 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2414 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2415 sum = ok+fail; 2416 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2417 2418 ni = ieee80211_ref_node(vap->iv_bss); 2419 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2420 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2421 ieee80211_free_node(ni); 2422 2423 /* count TX retry-fail as Tx errors */ 2424 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2425 2426 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2427 RUM_UNLOCK(sc); 2428} 2429 2430static void 2431rum_scan_start(struct ieee80211com *ic) 2432{ 2433 struct rum_softc *sc = ic->ic_softc; 2434 2435 RUM_LOCK(sc); 2436 rum_abort_tsf_sync(sc); 2437 rum_set_bssid(sc, ieee80211broadcastaddr); 2438 RUM_UNLOCK(sc); 2439 2440} 2441 2442static void 2443rum_scan_end(struct ieee80211com *ic) 2444{ 2445 struct rum_softc *sc = ic->ic_softc; 2446 2447 RUM_LOCK(sc); 2448 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 2449 rum_enable_tsf_sync(sc); 2450 else 2451 rum_enable_tsf(sc); 2452 rum_set_bssid(sc, sc->sc_bssid); 2453 RUM_UNLOCK(sc); 2454 2455} 2456 2457static void 2458rum_set_channel(struct ieee80211com *ic) 2459{ 2460 struct rum_softc *sc = ic->ic_softc; 2461 2462 RUM_LOCK(sc); 2463 rum_set_chan(sc, ic->ic_curchan); 2464 RUM_UNLOCK(sc); 2465} 2466 2467static int 2468rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2469{ 2470 struct ieee80211com *ic = &sc->sc_ic; 2471 int lna, agc, rssi; 2472 2473 lna = (raw >> 5) & 0x3; 2474 agc = raw & 0x1f; 2475 2476 if (lna == 0) { 2477 /* 2478 * No RSSI mapping 2479 * 2480 * NB: Since RSSI is relative to noise floor, -1 is 2481 * adequate for caller to know error happened. 2482 */ 2483 return -1; 2484 } 2485 2486 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2487 2488 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2489 rssi += sc->rssi_2ghz_corr; 2490 2491 if (lna == 1) 2492 rssi -= 64; 2493 else if (lna == 2) 2494 rssi -= 74; 2495 else if (lna == 3) 2496 rssi -= 90; 2497 } else { 2498 rssi += sc->rssi_5ghz_corr; 2499 2500 if (!sc->ext_5ghz_lna && lna != 1) 2501 rssi += 4; 2502 2503 if (lna == 1) 2504 rssi -= 64; 2505 else if (lna == 2) 2506 rssi -= 86; 2507 else if (lna == 3) 2508 rssi -= 100; 2509 } 2510 return rssi; 2511} 2512 2513static int 2514rum_pause(struct rum_softc *sc, int timeout) 2515{ 2516 2517 usb_pause_mtx(&sc->sc_mtx, timeout); 2518 return (0); 2519} 2520 2521static device_method_t rum_methods[] = { 2522 /* Device interface */ 2523 DEVMETHOD(device_probe, rum_match), 2524 DEVMETHOD(device_attach, rum_attach), 2525 DEVMETHOD(device_detach, rum_detach), 2526 DEVMETHOD_END 2527}; 2528 2529static driver_t rum_driver = { 2530 .name = "rum", 2531 .methods = rum_methods, 2532 .size = sizeof(struct rum_softc), 2533}; 2534 2535static devclass_t rum_devclass; 2536 2537DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2538MODULE_DEPEND(rum, wlan, 1, 1, 1); 2539MODULE_DEPEND(rum, usb, 1, 1, 1); 2540MODULE_VERSION(rum, 1); 2541