if_rum.c revision 288623
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288623 2015-10-03 17:49:11Z adrian $ */ 2 3/*- 4 * Copyright (c) 2005-2007 Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org> 6 * Copyright (c) 2007-2008 Hans Petter Selasky <hselasky@FreeBSD.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21#include <sys/cdefs.h> 22__FBSDID("$FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288623 2015-10-03 17:49:11Z adrian $"); 23 24/*- 25 * Ralink Technology RT2501USB/RT2601USB chipset driver 26 * http://www.ralinktech.com.tw/ 27 */ 28 29#include <sys/param.h> 30#include <sys/sockio.h> 31#include <sys/sysctl.h> 32#include <sys/lock.h> 33#include <sys/mutex.h> 34#include <sys/mbuf.h> 35#include <sys/kernel.h> 36#include <sys/socket.h> 37#include <sys/systm.h> 38#include <sys/malloc.h> 39#include <sys/module.h> 40#include <sys/bus.h> 41#include <sys/endian.h> 42#include <sys/kdb.h> 43 44#include <machine/bus.h> 45#include <machine/resource.h> 46#include <sys/rman.h> 47 48#include <net/bpf.h> 49#include <net/if.h> 50#include <net/if_var.h> 51#include <net/if_arp.h> 52#include <net/ethernet.h> 53#include <net/if_dl.h> 54#include <net/if_media.h> 55#include <net/if_types.h> 56 57#ifdef INET 58#include <netinet/in.h> 59#include <netinet/in_systm.h> 60#include <netinet/in_var.h> 61#include <netinet/if_ether.h> 62#include <netinet/ip.h> 63#endif 64 65#include <net80211/ieee80211_var.h> 66#include <net80211/ieee80211_regdomain.h> 67#include <net80211/ieee80211_radiotap.h> 68#include <net80211/ieee80211_ratectl.h> 69 70#include <dev/usb/usb.h> 71#include <dev/usb/usbdi.h> 72#include "usbdevs.h" 73 74#define USB_DEBUG_VAR rum_debug 75#include <dev/usb/usb_debug.h> 76 77#include <dev/usb/wlan/if_rumreg.h> 78#include <dev/usb/wlan/if_rumvar.h> 79#include <dev/usb/wlan/if_rumfw.h> 80 81#ifdef USB_DEBUG 82static int rum_debug = 0; 83 84static SYSCTL_NODE(_hw_usb, OID_AUTO, rum, CTLFLAG_RW, 0, "USB rum"); 85SYSCTL_INT(_hw_usb_rum, OID_AUTO, debug, CTLFLAG_RWTUN, &rum_debug, 0, 86 "Debug level"); 87#endif 88 89static const STRUCT_USB_HOST_ID rum_devs[] = { 90#define RUM_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 91 RUM_DEV(ABOCOM, HWU54DM), 92 RUM_DEV(ABOCOM, RT2573_2), 93 RUM_DEV(ABOCOM, RT2573_3), 94 RUM_DEV(ABOCOM, RT2573_4), 95 RUM_DEV(ABOCOM, WUG2700), 96 RUM_DEV(AMIT, CGWLUSB2GO), 97 RUM_DEV(ASUS, RT2573_1), 98 RUM_DEV(ASUS, RT2573_2), 99 RUM_DEV(BELKIN, F5D7050A), 100 RUM_DEV(BELKIN, F5D9050V3), 101 RUM_DEV(CISCOLINKSYS, WUSB54GC), 102 RUM_DEV(CISCOLINKSYS, WUSB54GR), 103 RUM_DEV(CONCEPTRONIC2, C54RU2), 104 RUM_DEV(COREGA, CGWLUSB2GL), 105 RUM_DEV(COREGA, CGWLUSB2GPX), 106 RUM_DEV(DICKSMITH, CWD854F), 107 RUM_DEV(DICKSMITH, RT2573), 108 RUM_DEV(EDIMAX, EW7318USG), 109 RUM_DEV(DLINK2, DWLG122C1), 110 RUM_DEV(DLINK2, WUA1340), 111 RUM_DEV(DLINK2, DWA111), 112 RUM_DEV(DLINK2, DWA110), 113 RUM_DEV(GIGABYTE, GNWB01GS), 114 RUM_DEV(GIGABYTE, GNWI05GS), 115 RUM_DEV(GIGASET, RT2573), 116 RUM_DEV(GOODWAY, RT2573), 117 RUM_DEV(GUILLEMOT, HWGUSB254LB), 118 RUM_DEV(GUILLEMOT, HWGUSB254V2AP), 119 RUM_DEV(HUAWEI3COM, WUB320G), 120 RUM_DEV(MELCO, G54HP), 121 RUM_DEV(MELCO, SG54HP), 122 RUM_DEV(MELCO, SG54HG), 123 RUM_DEV(MELCO, WLIUCG), 124 RUM_DEV(MELCO, WLRUCG), 125 RUM_DEV(MELCO, WLRUCGAOSS), 126 RUM_DEV(MSI, RT2573_1), 127 RUM_DEV(MSI, RT2573_2), 128 RUM_DEV(MSI, RT2573_3), 129 RUM_DEV(MSI, RT2573_4), 130 RUM_DEV(NOVATECH, RT2573), 131 RUM_DEV(PLANEX2, GWUS54HP), 132 RUM_DEV(PLANEX2, GWUS54MINI2), 133 RUM_DEV(PLANEX2, GWUSMM), 134 RUM_DEV(QCOM, RT2573), 135 RUM_DEV(QCOM, RT2573_2), 136 RUM_DEV(QCOM, RT2573_3), 137 RUM_DEV(RALINK, RT2573), 138 RUM_DEV(RALINK, RT2573_2), 139 RUM_DEV(RALINK, RT2671), 140 RUM_DEV(SITECOMEU, WL113R2), 141 RUM_DEV(SITECOMEU, WL172), 142 RUM_DEV(SPARKLAN, RT2573), 143 RUM_DEV(SURECOM, RT2573), 144#undef RUM_DEV 145}; 146 147static device_probe_t rum_match; 148static device_attach_t rum_attach; 149static device_detach_t rum_detach; 150 151static usb_callback_t rum_bulk_read_callback; 152static usb_callback_t rum_bulk_write_callback; 153 154static usb_error_t rum_do_request(struct rum_softc *sc, 155 struct usb_device_request *req, void *data); 156static struct ieee80211vap *rum_vap_create(struct ieee80211com *, 157 const char [IFNAMSIZ], int, enum ieee80211_opmode, 158 int, const uint8_t [IEEE80211_ADDR_LEN], 159 const uint8_t [IEEE80211_ADDR_LEN]); 160static void rum_vap_delete(struct ieee80211vap *); 161static void rum_cmdq_cb(void *, int); 162static int rum_cmd_sleepable(struct rum_softc *, const void *, 163 size_t, uint8_t, uint8_t, CMD_FUNC_PROTO); 164static void rum_tx_free(struct rum_tx_data *, int); 165static void rum_setup_tx_list(struct rum_softc *); 166static void rum_unsetup_tx_list(struct rum_softc *); 167static int rum_newstate(struct ieee80211vap *, 168 enum ieee80211_state, int); 169static void rum_setup_tx_desc(struct rum_softc *, 170 struct rum_tx_desc *, uint32_t, uint16_t, int, 171 int); 172static int rum_tx_mgt(struct rum_softc *, struct mbuf *, 173 struct ieee80211_node *); 174static int rum_tx_raw(struct rum_softc *, struct mbuf *, 175 struct ieee80211_node *, 176 const struct ieee80211_bpf_params *); 177static int rum_tx_data(struct rum_softc *, struct mbuf *, 178 struct ieee80211_node *); 179static int rum_transmit(struct ieee80211com *, struct mbuf *); 180static void rum_start(struct rum_softc *); 181static void rum_parent(struct ieee80211com *); 182static void rum_eeprom_read(struct rum_softc *, uint16_t, void *, 183 int); 184static uint32_t rum_read(struct rum_softc *, uint16_t); 185static void rum_read_multi(struct rum_softc *, uint16_t, void *, 186 int); 187static usb_error_t rum_write(struct rum_softc *, uint16_t, uint32_t); 188static usb_error_t rum_write_multi(struct rum_softc *, uint16_t, void *, 189 size_t); 190static usb_error_t rum_setbits(struct rum_softc *, uint16_t, uint32_t); 191static usb_error_t rum_clrbits(struct rum_softc *, uint16_t, uint32_t); 192static usb_error_t rum_modbits(struct rum_softc *, uint16_t, uint32_t, 193 uint32_t); 194static int rum_bbp_busy(struct rum_softc *); 195static void rum_bbp_write(struct rum_softc *, uint8_t, uint8_t); 196static uint8_t rum_bbp_read(struct rum_softc *, uint8_t); 197static void rum_rf_write(struct rum_softc *, uint8_t, uint32_t); 198static void rum_select_antenna(struct rum_softc *); 199static void rum_enable_mrr(struct rum_softc *); 200static void rum_set_txpreamble(struct rum_softc *); 201static void rum_set_basicrates(struct rum_softc *); 202static void rum_select_band(struct rum_softc *, 203 struct ieee80211_channel *); 204static void rum_set_chan(struct rum_softc *, 205 struct ieee80211_channel *); 206static int rum_enable_tsf_sync(struct rum_softc *); 207static void rum_enable_tsf(struct rum_softc *); 208static void rum_abort_tsf_sync(struct rum_softc *); 209static void rum_get_tsf(struct rum_softc *, uint64_t *); 210static void rum_update_slot(struct rum_softc *); 211static void rum_set_bssid(struct rum_softc *, const uint8_t *); 212static void rum_set_macaddr(struct rum_softc *, const uint8_t *); 213static void rum_update_mcast(struct ieee80211com *); 214static void rum_update_promisc(struct ieee80211com *); 215static void rum_setpromisc(struct rum_softc *); 216static const char *rum_get_rf(int); 217static void rum_read_eeprom(struct rum_softc *); 218static int rum_bbp_wakeup(struct rum_softc *); 219static int rum_bbp_init(struct rum_softc *); 220static int rum_init(struct rum_softc *); 221static void rum_stop(struct rum_softc *); 222static void rum_load_microcode(struct rum_softc *, const uint8_t *, 223 size_t); 224static int rum_set_beacon(struct rum_softc *, 225 struct ieee80211vap *); 226static int rum_alloc_beacon(struct rum_softc *, 227 struct ieee80211vap *); 228static int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 229 const struct ieee80211_bpf_params *); 230static void rum_scan_start(struct ieee80211com *); 231static void rum_scan_end(struct ieee80211com *); 232static void rum_set_channel(struct ieee80211com *); 233static int rum_get_rssi(struct rum_softc *, uint8_t); 234static void rum_ratectl_start(struct rum_softc *, 235 struct ieee80211_node *); 236static void rum_ratectl_timeout(void *); 237static void rum_ratectl_task(void *, int); 238static int rum_pause(struct rum_softc *, int); 239 240static const struct { 241 uint32_t reg; 242 uint32_t val; 243} rum_def_mac[] = { 244 { RT2573_TXRX_CSR0, 0x025fb032 }, 245 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 246 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 247 { RT2573_TXRX_CSR3, 0x00858687 }, 248 { RT2573_TXRX_CSR7, 0x2e31353b }, 249 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 250 { RT2573_TXRX_CSR15, 0x0000000f }, 251 { RT2573_MAC_CSR6, 0x00000fff }, 252 { RT2573_MAC_CSR8, 0x016c030a }, 253 { RT2573_MAC_CSR10, 0x00000718 }, 254 { RT2573_MAC_CSR12, 0x00000004 }, 255 { RT2573_MAC_CSR13, 0x00007f00 }, 256 { RT2573_SEC_CSR0, 0x00000000 }, 257 { RT2573_SEC_CSR1, 0x00000000 }, 258 { RT2573_SEC_CSR5, 0x00000000 }, 259 { RT2573_PHY_CSR1, 0x000023b0 }, 260 { RT2573_PHY_CSR5, 0x00040a06 }, 261 { RT2573_PHY_CSR6, 0x00080606 }, 262 { RT2573_PHY_CSR7, 0x00000408 }, 263 { RT2573_AIFSN_CSR, 0x00002273 }, 264 { RT2573_CWMIN_CSR, 0x00002344 }, 265 { RT2573_CWMAX_CSR, 0x000034aa } 266}; 267 268static const struct { 269 uint8_t reg; 270 uint8_t val; 271} rum_def_bbp[] = { 272 { 3, 0x80 }, 273 { 15, 0x30 }, 274 { 17, 0x20 }, 275 { 21, 0xc8 }, 276 { 22, 0x38 }, 277 { 23, 0x06 }, 278 { 24, 0xfe }, 279 { 25, 0x0a }, 280 { 26, 0x0d }, 281 { 32, 0x0b }, 282 { 34, 0x12 }, 283 { 37, 0x07 }, 284 { 39, 0xf8 }, 285 { 41, 0x60 }, 286 { 53, 0x10 }, 287 { 54, 0x18 }, 288 { 60, 0x10 }, 289 { 61, 0x04 }, 290 { 62, 0x04 }, 291 { 75, 0xfe }, 292 { 86, 0xfe }, 293 { 88, 0xfe }, 294 { 90, 0x0f }, 295 { 99, 0x00 }, 296 { 102, 0x16 }, 297 { 107, 0x04 } 298}; 299 300static const struct rfprog { 301 uint8_t chan; 302 uint32_t r1, r2, r3, r4; 303} rum_rf5226[] = { 304 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 305 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 306 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 307 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 308 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 309 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 310 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 311 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 312 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 313 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 314 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 315 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 316 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 317 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 318 319 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 320 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 321 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 322 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 323 324 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 325 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 326 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 327 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 328 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 329 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 330 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 331 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 332 333 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 334 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 335 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 336 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 337 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 338 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 339 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 340 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 341 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 342 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 343 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 344 345 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 346 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 347 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 348 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 349 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 350}, rum_rf5225[] = { 351 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 352 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 353 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 354 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 355 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 356 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 357 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 358 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 359 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 360 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 361 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 362 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 363 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 364 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 365 366 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 367 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 368 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 369 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 370 371 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 372 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 373 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 374 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 375 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 376 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 377 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 378 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 379 380 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 381 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 382 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 383 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 384 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 385 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 386 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 387 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 388 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 389 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 390 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 391 392 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 393 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 394 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 395 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 396 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 397}; 398 399static const struct usb_config rum_config[RUM_N_TRANSFER] = { 400 [RUM_BULK_WR] = { 401 .type = UE_BULK, 402 .endpoint = UE_ADDR_ANY, 403 .direction = UE_DIR_OUT, 404 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 405 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 406 .callback = rum_bulk_write_callback, 407 .timeout = 5000, /* ms */ 408 }, 409 [RUM_BULK_RD] = { 410 .type = UE_BULK, 411 .endpoint = UE_ADDR_ANY, 412 .direction = UE_DIR_IN, 413 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 414 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 415 .callback = rum_bulk_read_callback, 416 }, 417}; 418 419static int 420rum_match(device_t self) 421{ 422 struct usb_attach_arg *uaa = device_get_ivars(self); 423 424 if (uaa->usb_mode != USB_MODE_HOST) 425 return (ENXIO); 426 if (uaa->info.bConfigIndex != 0) 427 return (ENXIO); 428 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 429 return (ENXIO); 430 431 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 432} 433 434static int 435rum_attach(device_t self) 436{ 437 struct usb_attach_arg *uaa = device_get_ivars(self); 438 struct rum_softc *sc = device_get_softc(self); 439 struct ieee80211com *ic = &sc->sc_ic; 440 uint8_t iface_index, bands; 441 uint32_t tmp; 442 int error, ntries; 443 444 device_set_usb_desc(self); 445 sc->sc_udev = uaa->device; 446 sc->sc_dev = self; 447 448 RUM_LOCK_INIT(sc); 449 RUM_CMDQ_LOCK_INIT(sc); 450 mbufq_init(&sc->sc_snd, ifqmaxlen); 451 452 iface_index = RT2573_IFACE_INDEX; 453 error = usbd_transfer_setup(uaa->device, &iface_index, 454 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 455 if (error) { 456 device_printf(self, "could not allocate USB transfers, " 457 "err=%s\n", usbd_errstr(error)); 458 goto detach; 459 } 460 461 RUM_LOCK(sc); 462 /* retrieve RT2573 rev. no */ 463 for (ntries = 0; ntries < 100; ntries++) { 464 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 465 break; 466 if (rum_pause(sc, hz / 100)) 467 break; 468 } 469 if (ntries == 100) { 470 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 471 RUM_UNLOCK(sc); 472 goto detach; 473 } 474 475 /* retrieve MAC address and various other things from EEPROM */ 476 rum_read_eeprom(sc); 477 478 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 479 tmp, rum_get_rf(sc->rf_rev)); 480 481 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 482 RUM_UNLOCK(sc); 483 484 ic->ic_softc = sc; 485 ic->ic_name = device_get_nameunit(self); 486 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 487 488 /* set device capabilities */ 489 ic->ic_caps = 490 IEEE80211_C_STA /* station mode supported */ 491 | IEEE80211_C_IBSS /* IBSS mode supported */ 492 | IEEE80211_C_MONITOR /* monitor mode supported */ 493 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 494 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 495 | IEEE80211_C_TXPMGT /* tx power management */ 496 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 497 | IEEE80211_C_SHSLOT /* short slot time supported */ 498 | IEEE80211_C_BGSCAN /* bg scanning supported */ 499 | IEEE80211_C_WPA /* 802.11i */ 500 ; 501 502 bands = 0; 503 setbit(&bands, IEEE80211_MODE_11B); 504 setbit(&bands, IEEE80211_MODE_11G); 505 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 506 setbit(&bands, IEEE80211_MODE_11A); 507 ieee80211_init_channels(ic, NULL, &bands); 508 509 ieee80211_ifattach(ic); 510 ic->ic_update_promisc = rum_update_promisc; 511 ic->ic_raw_xmit = rum_raw_xmit; 512 ic->ic_scan_start = rum_scan_start; 513 ic->ic_scan_end = rum_scan_end; 514 ic->ic_set_channel = rum_set_channel; 515 ic->ic_transmit = rum_transmit; 516 ic->ic_parent = rum_parent; 517 ic->ic_vap_create = rum_vap_create; 518 ic->ic_vap_delete = rum_vap_delete; 519 ic->ic_update_mcast = rum_update_mcast; 520 521 ieee80211_radiotap_attach(ic, 522 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 523 RT2573_TX_RADIOTAP_PRESENT, 524 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 525 RT2573_RX_RADIOTAP_PRESENT); 526 527 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 528 529 if (bootverbose) 530 ieee80211_announce(ic); 531 532 return (0); 533 534detach: 535 rum_detach(self); 536 return (ENXIO); /* failure */ 537} 538 539static int 540rum_detach(device_t self) 541{ 542 struct rum_softc *sc = device_get_softc(self); 543 struct ieee80211com *ic = &sc->sc_ic; 544 545 /* Prevent further ioctls */ 546 RUM_LOCK(sc); 547 sc->sc_detached = 1; 548 RUM_UNLOCK(sc); 549 550 /* stop all USB transfers */ 551 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 552 553 /* free TX list, if any */ 554 RUM_LOCK(sc); 555 rum_unsetup_tx_list(sc); 556 RUM_UNLOCK(sc); 557 558 if (ic->ic_softc == sc) { 559 ieee80211_draintask(ic, &sc->cmdq_task); 560 ieee80211_ifdetach(ic); 561 } 562 563 mbufq_drain(&sc->sc_snd); 564 RUM_CMDQ_LOCK_DESTROY(sc); 565 RUM_LOCK_DESTROY(sc); 566 567 return (0); 568} 569 570static usb_error_t 571rum_do_request(struct rum_softc *sc, 572 struct usb_device_request *req, void *data) 573{ 574 usb_error_t err; 575 int ntries = 10; 576 577 while (ntries--) { 578 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 579 req, data, 0, NULL, 250 /* ms */); 580 if (err == 0) 581 break; 582 583 DPRINTFN(1, "Control request failed, %s (retrying)\n", 584 usbd_errstr(err)); 585 if (rum_pause(sc, hz / 100)) 586 break; 587 } 588 return (err); 589} 590 591static struct ieee80211vap * 592rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 593 enum ieee80211_opmode opmode, int flags, 594 const uint8_t bssid[IEEE80211_ADDR_LEN], 595 const uint8_t mac[IEEE80211_ADDR_LEN]) 596{ 597 struct rum_softc *sc = ic->ic_softc; 598 struct rum_vap *rvp; 599 struct ieee80211vap *vap; 600 601 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 602 return NULL; 603 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 604 vap = &rvp->vap; 605 /* enable s/w bmiss handling for sta mode */ 606 607 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 608 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 609 /* out of memory */ 610 free(rvp, M_80211_VAP); 611 return (NULL); 612 } 613 614 /* override state transition machine */ 615 rvp->newstate = vap->iv_newstate; 616 vap->iv_newstate = rum_newstate; 617 618 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 619 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 620 ieee80211_ratectl_init(vap); 621 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 622 /* complete setup */ 623 ieee80211_vap_attach(vap, ieee80211_media_change, 624 ieee80211_media_status, mac); 625 ic->ic_opmode = opmode; 626 return vap; 627} 628 629static void 630rum_vap_delete(struct ieee80211vap *vap) 631{ 632 struct rum_vap *rvp = RUM_VAP(vap); 633 struct ieee80211com *ic = vap->iv_ic; 634 635 m_freem(rvp->bcn_mbuf); 636 usb_callout_drain(&rvp->ratectl_ch); 637 ieee80211_draintask(ic, &rvp->ratectl_task); 638 ieee80211_ratectl_deinit(vap); 639 ieee80211_vap_detach(vap); 640 free(rvp, M_80211_VAP); 641} 642 643static void 644rum_cmdq_cb(void *arg, int pending) 645{ 646 struct rum_softc *sc = arg; 647 struct rum_cmdq *rc; 648 649 RUM_CMDQ_LOCK(sc); 650 while (sc->cmdq[sc->cmdq_first].func != NULL) { 651 rc = &sc->cmdq[sc->cmdq_first]; 652 RUM_CMDQ_UNLOCK(sc); 653 654 RUM_LOCK(sc); 655 rc->func(sc, &rc->data, rc->rn_id, rc->rvp_id); 656 RUM_UNLOCK(sc); 657 658 RUM_CMDQ_LOCK(sc); 659 memset(rc, 0, sizeof (*rc)); 660 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 661 } 662 RUM_CMDQ_UNLOCK(sc); 663} 664 665static int 666rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 667 uint8_t rn_id, uint8_t rvp_id, CMD_FUNC_PROTO) 668{ 669 struct ieee80211com *ic = &sc->sc_ic; 670 671 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 672 673 RUM_CMDQ_LOCK(sc); 674 if (sc->cmdq[sc->cmdq_last].func != NULL) { 675 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 676 RUM_CMDQ_UNLOCK(sc); 677 678 return EAGAIN; 679 } 680 681 if (ptr != NULL) 682 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 683 sc->cmdq[sc->cmdq_last].rn_id = rn_id; 684 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 685 sc->cmdq[sc->cmdq_last].func = func; 686 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 687 RUM_CMDQ_UNLOCK(sc); 688 689 ieee80211_runtask(ic, &sc->cmdq_task); 690 691 return 0; 692} 693 694static void 695rum_tx_free(struct rum_tx_data *data, int txerr) 696{ 697 struct rum_softc *sc = data->sc; 698 699 if (data->m != NULL) { 700 ieee80211_tx_complete(data->ni, data->m, txerr); 701 data->m = NULL; 702 data->ni = NULL; 703 } 704 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 705 sc->tx_nfree++; 706} 707 708static void 709rum_setup_tx_list(struct rum_softc *sc) 710{ 711 struct rum_tx_data *data; 712 int i; 713 714 sc->tx_nfree = 0; 715 STAILQ_INIT(&sc->tx_q); 716 STAILQ_INIT(&sc->tx_free); 717 718 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 719 data = &sc->tx_data[i]; 720 721 data->sc = sc; 722 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 723 sc->tx_nfree++; 724 } 725} 726 727static void 728rum_unsetup_tx_list(struct rum_softc *sc) 729{ 730 struct rum_tx_data *data; 731 int i; 732 733 /* make sure any subsequent use of the queues will fail */ 734 sc->tx_nfree = 0; 735 STAILQ_INIT(&sc->tx_q); 736 STAILQ_INIT(&sc->tx_free); 737 738 /* free up all node references and mbufs */ 739 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 740 data = &sc->tx_data[i]; 741 742 if (data->m != NULL) { 743 m_freem(data->m); 744 data->m = NULL; 745 } 746 if (data->ni != NULL) { 747 ieee80211_free_node(data->ni); 748 data->ni = NULL; 749 } 750 } 751} 752 753static int 754rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 755{ 756 struct rum_vap *rvp = RUM_VAP(vap); 757 struct ieee80211com *ic = vap->iv_ic; 758 struct rum_softc *sc = ic->ic_softc; 759 const struct ieee80211_txparam *tp; 760 enum ieee80211_state ostate; 761 struct ieee80211_node *ni; 762 int ret; 763 764 ostate = vap->iv_state; 765 DPRINTF("%s -> %s\n", 766 ieee80211_state_name[ostate], 767 ieee80211_state_name[nstate]); 768 769 IEEE80211_UNLOCK(ic); 770 RUM_LOCK(sc); 771 usb_callout_stop(&rvp->ratectl_ch); 772 773 switch (nstate) { 774 case IEEE80211_S_INIT: 775 if (ostate == IEEE80211_S_RUN) 776 rum_abort_tsf_sync(sc); 777 778 break; 779 780 case IEEE80211_S_RUN: 781 ni = ieee80211_ref_node(vap->iv_bss); 782 783 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 784 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 785 ret = EINVAL; 786 goto run_fail; 787 } 788 rum_update_slot(sc); 789 rum_enable_mrr(sc); 790 rum_set_txpreamble(sc); 791 rum_set_basicrates(sc); 792 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 793 rum_set_bssid(sc, sc->sc_bssid); 794 } 795 796 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 797 vap->iv_opmode == IEEE80211_M_IBSS) { 798 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 799 goto run_fail; 800 } 801 802 if (vap->iv_opmode != IEEE80211_M_MONITOR && 803 vap->iv_opmode != IEEE80211_M_AHDEMO) { 804 if ((ret = rum_enable_tsf_sync(sc)) != 0) 805 goto run_fail; 806 } else 807 rum_enable_tsf(sc); 808 809 /* enable automatic rate adaptation */ 810 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 811 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 812 rum_ratectl_start(sc, ni); 813 ieee80211_free_node(ni); 814 break; 815 default: 816 break; 817 } 818 RUM_UNLOCK(sc); 819 IEEE80211_LOCK(ic); 820 return (rvp->newstate(vap, nstate, arg)); 821 822run_fail: 823 RUM_UNLOCK(sc); 824 IEEE80211_LOCK(ic); 825 ieee80211_free_node(ni); 826 return ret; 827} 828 829static void 830rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 831{ 832 struct rum_softc *sc = usbd_xfer_softc(xfer); 833 struct ieee80211vap *vap; 834 struct rum_tx_data *data; 835 struct mbuf *m; 836 struct usb_page_cache *pc; 837 unsigned int len; 838 int actlen, sumlen; 839 840 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 841 842 switch (USB_GET_STATE(xfer)) { 843 case USB_ST_TRANSFERRED: 844 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 845 846 /* free resources */ 847 data = usbd_xfer_get_priv(xfer); 848 rum_tx_free(data, 0); 849 usbd_xfer_set_priv(xfer, NULL); 850 851 /* FALLTHROUGH */ 852 case USB_ST_SETUP: 853tr_setup: 854 data = STAILQ_FIRST(&sc->tx_q); 855 if (data) { 856 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 857 m = data->m; 858 859 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 860 DPRINTFN(0, "data overflow, %u bytes\n", 861 m->m_pkthdr.len); 862 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 863 } 864 pc = usbd_xfer_get_frame(xfer, 0); 865 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 866 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 867 m->m_pkthdr.len); 868 869 vap = data->ni->ni_vap; 870 if (ieee80211_radiotap_active_vap(vap)) { 871 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 872 873 tap->wt_flags = 0; 874 tap->wt_rate = data->rate; 875 rum_get_tsf(sc, &tap->wt_tsf); 876 tap->wt_antenna = sc->tx_ant; 877 878 ieee80211_radiotap_tx(vap, m); 879 } 880 881 /* align end on a 4-bytes boundary */ 882 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 883 if ((len % 64) == 0) 884 len += 4; 885 886 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 887 m->m_pkthdr.len, len); 888 889 usbd_xfer_set_frame_len(xfer, 0, len); 890 usbd_xfer_set_priv(xfer, data); 891 892 usbd_transfer_submit(xfer); 893 } 894 rum_start(sc); 895 break; 896 897 default: /* Error */ 898 DPRINTFN(11, "transfer error, %s\n", 899 usbd_errstr(error)); 900 901 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 902 data = usbd_xfer_get_priv(xfer); 903 if (data != NULL) { 904 rum_tx_free(data, error); 905 usbd_xfer_set_priv(xfer, NULL); 906 } 907 908 if (error != USB_ERR_CANCELLED) { 909 if (error == USB_ERR_TIMEOUT) 910 device_printf(sc->sc_dev, "device timeout\n"); 911 912 /* 913 * Try to clear stall first, also if other 914 * errors occur, hence clearing stall 915 * introduces a 50 ms delay: 916 */ 917 usbd_xfer_set_stall(xfer); 918 goto tr_setup; 919 } 920 break; 921 } 922} 923 924static void 925rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 926{ 927 struct rum_softc *sc = usbd_xfer_softc(xfer); 928 struct ieee80211com *ic = &sc->sc_ic; 929 struct ieee80211_frame_min *wh; 930 struct ieee80211_node *ni; 931 struct mbuf *m = NULL; 932 struct usb_page_cache *pc; 933 uint32_t flags; 934 uint8_t rssi = 0; 935 int len; 936 937 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 938 939 switch (USB_GET_STATE(xfer)) { 940 case USB_ST_TRANSFERRED: 941 942 DPRINTFN(15, "rx done, actlen=%d\n", len); 943 944 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 945 DPRINTF("%s: xfer too short %d\n", 946 device_get_nameunit(sc->sc_dev), len); 947 counter_u64_add(ic->ic_ierrors, 1); 948 goto tr_setup; 949 } 950 951 len -= RT2573_RX_DESC_SIZE; 952 pc = usbd_xfer_get_frame(xfer, 0); 953 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 954 955 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 956 flags = le32toh(sc->sc_rx_desc.flags); 957 if (flags & RT2573_RX_CRC_ERROR) { 958 /* 959 * This should not happen since we did not 960 * request to receive those frames when we 961 * filled RUM_TXRX_CSR2: 962 */ 963 DPRINTFN(5, "PHY or CRC error\n"); 964 counter_u64_add(ic->ic_ierrors, 1); 965 goto tr_setup; 966 } 967 968 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 969 if (m == NULL) { 970 DPRINTF("could not allocate mbuf\n"); 971 counter_u64_add(ic->ic_ierrors, 1); 972 goto tr_setup; 973 } 974 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 975 mtod(m, uint8_t *), len); 976 977 wh = mtod(m, struct ieee80211_frame_min *); 978 979 /* finalize mbuf */ 980 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 981 982 if (ieee80211_radiotap_active(ic)) { 983 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 984 985 tap->wr_flags = 0; 986 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 987 (flags & RT2573_RX_OFDM) ? 988 IEEE80211_T_OFDM : IEEE80211_T_CCK); 989 rum_get_tsf(sc, &tap->wr_tsf); 990 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 991 tap->wr_antnoise = RT2573_NOISE_FLOOR; 992 tap->wr_antenna = sc->rx_ant; 993 } 994 /* FALLTHROUGH */ 995 case USB_ST_SETUP: 996tr_setup: 997 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 998 usbd_transfer_submit(xfer); 999 1000 /* 1001 * At the end of a USB callback it is always safe to unlock 1002 * the private mutex of a device! That is why we do the 1003 * "ieee80211_input" here, and not some lines up! 1004 */ 1005 RUM_UNLOCK(sc); 1006 if (m) { 1007 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1008 ni = ieee80211_find_rxnode(ic, wh); 1009 else 1010 ni = NULL; 1011 1012 if (ni != NULL) { 1013 (void) ieee80211_input(ni, m, rssi, 1014 RT2573_NOISE_FLOOR); 1015 ieee80211_free_node(ni); 1016 } else 1017 (void) ieee80211_input_all(ic, m, rssi, 1018 RT2573_NOISE_FLOOR); 1019 } 1020 RUM_LOCK(sc); 1021 rum_start(sc); 1022 return; 1023 1024 default: /* Error */ 1025 if (error != USB_ERR_CANCELLED) { 1026 /* try to clear stall first */ 1027 usbd_xfer_set_stall(xfer); 1028 goto tr_setup; 1029 } 1030 return; 1031 } 1032} 1033 1034static uint8_t 1035rum_plcp_signal(int rate) 1036{ 1037 switch (rate) { 1038 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1039 case 12: return 0xb; 1040 case 18: return 0xf; 1041 case 24: return 0xa; 1042 case 36: return 0xe; 1043 case 48: return 0x9; 1044 case 72: return 0xd; 1045 case 96: return 0x8; 1046 case 108: return 0xc; 1047 1048 /* CCK rates (NB: not IEEE std, device-specific) */ 1049 case 2: return 0x0; 1050 case 4: return 0x1; 1051 case 11: return 0x2; 1052 case 22: return 0x3; 1053 } 1054 return 0xff; /* XXX unsupported/unknown rate */ 1055} 1056 1057static void 1058rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1059 uint32_t flags, uint16_t xflags, int len, int rate) 1060{ 1061 struct ieee80211com *ic = &sc->sc_ic; 1062 uint16_t plcp_length; 1063 int remainder; 1064 1065 desc->flags = htole32(flags); 1066 desc->flags |= htole32(RT2573_TX_VALID); 1067 desc->flags |= htole32(len << 16); 1068 1069 desc->xflags = htole16(xflags); 1070 1071 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1072 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1073 1074 /* setup PLCP fields */ 1075 desc->plcp_signal = rum_plcp_signal(rate); 1076 desc->plcp_service = 4; 1077 1078 len += IEEE80211_CRC_LEN; 1079 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1080 desc->flags |= htole32(RT2573_TX_OFDM); 1081 1082 plcp_length = len & 0xfff; 1083 desc->plcp_length_hi = plcp_length >> 6; 1084 desc->plcp_length_lo = plcp_length & 0x3f; 1085 } else { 1086 if (rate == 0) 1087 rate = 2; /* avoid division by zero */ 1088 plcp_length = (16 * len + rate - 1) / rate; 1089 if (rate == 22) { 1090 remainder = (16 * len) % 22; 1091 if (remainder != 0 && remainder < 7) 1092 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1093 } 1094 desc->plcp_length_hi = plcp_length >> 8; 1095 desc->plcp_length_lo = plcp_length & 0xff; 1096 1097 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1098 desc->plcp_signal |= 0x08; 1099 } 1100} 1101 1102static int 1103rum_sendprot(struct rum_softc *sc, 1104 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1105{ 1106 struct ieee80211com *ic = ni->ni_ic; 1107 const struct ieee80211_frame *wh; 1108 struct rum_tx_data *data; 1109 struct mbuf *mprot; 1110 int protrate, pktlen, flags, isshort; 1111 uint16_t dur; 1112 1113 RUM_LOCK_ASSERT(sc); 1114 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1115 ("protection %d", prot)); 1116 1117 wh = mtod(m, const struct ieee80211_frame *); 1118 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1119 1120 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1121 1122 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1123 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1124 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1125 flags = RT2573_TX_MORE_FRAG; 1126 if (prot == IEEE80211_PROT_RTSCTS) { 1127 /* NB: CTS is the same size as an ACK */ 1128 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1129 flags |= RT2573_TX_NEED_ACK; 1130 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1131 } else { 1132 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1133 } 1134 if (mprot == NULL) { 1135 /* XXX stat + msg */ 1136 return (ENOBUFS); 1137 } 1138 data = STAILQ_FIRST(&sc->tx_free); 1139 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1140 sc->tx_nfree--; 1141 1142 data->m = mprot; 1143 data->ni = ieee80211_ref_node(ni); 1144 data->rate = protrate; 1145 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1146 1147 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1148 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1149 1150 return 0; 1151} 1152 1153static int 1154rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1155{ 1156 struct ieee80211vap *vap = ni->ni_vap; 1157 struct ieee80211com *ic = &sc->sc_ic; 1158 struct rum_tx_data *data; 1159 struct ieee80211_frame *wh; 1160 const struct ieee80211_txparam *tp; 1161 struct ieee80211_key *k; 1162 uint32_t flags = 0; 1163 uint16_t dur; 1164 1165 RUM_LOCK_ASSERT(sc); 1166 1167 data = STAILQ_FIRST(&sc->tx_free); 1168 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1169 sc->tx_nfree--; 1170 1171 wh = mtod(m0, struct ieee80211_frame *); 1172 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1173 k = ieee80211_crypto_encap(ni, m0); 1174 if (k == NULL) 1175 return (ENOBUFS); 1176 1177 wh = mtod(m0, struct ieee80211_frame *); 1178 } 1179 1180 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1181 1182 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1183 flags |= RT2573_TX_NEED_ACK; 1184 1185 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1186 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1187 USETW(wh->i_dur, dur); 1188 1189 /* tell hardware to add timestamp for probe responses */ 1190 if ((wh->i_fc[0] & 1191 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1192 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1193 flags |= RT2573_TX_TIMESTAMP; 1194 } 1195 1196 data->m = m0; 1197 data->ni = ni; 1198 data->rate = tp->mgmtrate; 1199 1200 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1201 1202 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1203 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1204 1205 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1206 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1207 1208 return (0); 1209} 1210 1211static int 1212rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1213 const struct ieee80211_bpf_params *params) 1214{ 1215 struct ieee80211com *ic = ni->ni_ic; 1216 struct rum_tx_data *data; 1217 uint32_t flags; 1218 int rate, error; 1219 1220 RUM_LOCK_ASSERT(sc); 1221 1222 rate = params->ibp_rate0; 1223 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1224 return (EINVAL); 1225 1226 flags = 0; 1227 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1228 flags |= RT2573_TX_NEED_ACK; 1229 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1230 error = rum_sendprot(sc, m0, ni, 1231 params->ibp_flags & IEEE80211_BPF_RTS ? 1232 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1233 rate); 1234 if (error || sc->tx_nfree == 0) 1235 return (ENOBUFS); 1236 1237 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1238 } 1239 1240 data = STAILQ_FIRST(&sc->tx_free); 1241 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1242 sc->tx_nfree--; 1243 1244 data->m = m0; 1245 data->ni = ni; 1246 data->rate = rate; 1247 1248 /* XXX need to setup descriptor ourself */ 1249 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1250 1251 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1252 m0->m_pkthdr.len, rate); 1253 1254 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1255 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1256 1257 return 0; 1258} 1259 1260static int 1261rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1262{ 1263 struct ieee80211vap *vap = ni->ni_vap; 1264 struct ieee80211com *ic = &sc->sc_ic; 1265 struct rum_tx_data *data; 1266 struct ieee80211_frame *wh; 1267 const struct ieee80211_txparam *tp; 1268 struct ieee80211_key *k; 1269 uint32_t flags = 0; 1270 uint16_t dur; 1271 int error, rate; 1272 1273 RUM_LOCK_ASSERT(sc); 1274 1275 wh = mtod(m0, struct ieee80211_frame *); 1276 1277 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1278 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1279 rate = tp->mcastrate; 1280 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1281 rate = tp->ucastrate; 1282 else 1283 rate = ni->ni_txrate; 1284 1285 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1286 k = ieee80211_crypto_encap(ni, m0); 1287 if (k == NULL) { 1288 m_freem(m0); 1289 return ENOBUFS; 1290 } 1291 1292 /* packet header may have moved, reset our local pointer */ 1293 wh = mtod(m0, struct ieee80211_frame *); 1294 } 1295 1296 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1297 int prot = IEEE80211_PROT_NONE; 1298 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1299 prot = IEEE80211_PROT_RTSCTS; 1300 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1301 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1302 prot = ic->ic_protmode; 1303 if (prot != IEEE80211_PROT_NONE) { 1304 error = rum_sendprot(sc, m0, ni, prot, rate); 1305 if (error || sc->tx_nfree == 0) { 1306 m_freem(m0); 1307 return ENOBUFS; 1308 } 1309 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1310 } 1311 } 1312 1313 data = STAILQ_FIRST(&sc->tx_free); 1314 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1315 sc->tx_nfree--; 1316 1317 data->m = m0; 1318 data->ni = ni; 1319 data->rate = rate; 1320 1321 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1322 flags |= RT2573_TX_NEED_ACK; 1323 flags |= RT2573_TX_MORE_FRAG; 1324 1325 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1326 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1327 USETW(wh->i_dur, dur); 1328 } 1329 1330 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1331 1332 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1333 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1334 1335 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1336 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1337 1338 return 0; 1339} 1340 1341static int 1342rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1343{ 1344 struct rum_softc *sc = ic->ic_softc; 1345 int error; 1346 1347 RUM_LOCK(sc); 1348 if (!sc->sc_running) { 1349 RUM_UNLOCK(sc); 1350 return (ENXIO); 1351 } 1352 error = mbufq_enqueue(&sc->sc_snd, m); 1353 if (error) { 1354 RUM_UNLOCK(sc); 1355 return (error); 1356 } 1357 rum_start(sc); 1358 RUM_UNLOCK(sc); 1359 1360 return (0); 1361} 1362 1363static void 1364rum_start(struct rum_softc *sc) 1365{ 1366 struct ieee80211_node *ni; 1367 struct mbuf *m; 1368 1369 RUM_LOCK_ASSERT(sc); 1370 1371 if (!sc->sc_running) 1372 return; 1373 1374 while (sc->tx_nfree >= RUM_TX_MINFREE && 1375 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1376 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1377 if (rum_tx_data(sc, m, ni) != 0) { 1378 if_inc_counter(ni->ni_vap->iv_ifp, 1379 IFCOUNTER_OERRORS, 1); 1380 ieee80211_free_node(ni); 1381 break; 1382 } 1383 } 1384} 1385 1386static void 1387rum_parent(struct ieee80211com *ic) 1388{ 1389 struct rum_softc *sc = ic->ic_softc; 1390 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1391 1392 RUM_LOCK(sc); 1393 if (sc->sc_detached) { 1394 RUM_UNLOCK(sc); 1395 return; 1396 } 1397 RUM_UNLOCK(sc); 1398 1399 if (ic->ic_nrunning > 0) { 1400 if (rum_init(sc) == 0) 1401 ieee80211_start_all(ic); 1402 else 1403 ieee80211_stop(vap); 1404 } else 1405 rum_stop(sc); 1406} 1407 1408static void 1409rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1410{ 1411 struct usb_device_request req; 1412 usb_error_t error; 1413 1414 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1415 req.bRequest = RT2573_READ_EEPROM; 1416 USETW(req.wValue, 0); 1417 USETW(req.wIndex, addr); 1418 USETW(req.wLength, len); 1419 1420 error = rum_do_request(sc, &req, buf); 1421 if (error != 0) { 1422 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1423 usbd_errstr(error)); 1424 } 1425} 1426 1427static uint32_t 1428rum_read(struct rum_softc *sc, uint16_t reg) 1429{ 1430 uint32_t val; 1431 1432 rum_read_multi(sc, reg, &val, sizeof val); 1433 1434 return le32toh(val); 1435} 1436 1437static void 1438rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1439{ 1440 struct usb_device_request req; 1441 usb_error_t error; 1442 1443 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1444 req.bRequest = RT2573_READ_MULTI_MAC; 1445 USETW(req.wValue, 0); 1446 USETW(req.wIndex, reg); 1447 USETW(req.wLength, len); 1448 1449 error = rum_do_request(sc, &req, buf); 1450 if (error != 0) { 1451 device_printf(sc->sc_dev, 1452 "could not multi read MAC register: %s\n", 1453 usbd_errstr(error)); 1454 } 1455} 1456 1457static usb_error_t 1458rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1459{ 1460 uint32_t tmp = htole32(val); 1461 1462 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1463} 1464 1465static usb_error_t 1466rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1467{ 1468 struct usb_device_request req; 1469 usb_error_t error; 1470 size_t offset; 1471 1472 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1473 req.bRequest = RT2573_WRITE_MULTI_MAC; 1474 USETW(req.wValue, 0); 1475 1476 /* write at most 64 bytes at a time */ 1477 for (offset = 0; offset < len; offset += 64) { 1478 USETW(req.wIndex, reg + offset); 1479 USETW(req.wLength, MIN(len - offset, 64)); 1480 1481 error = rum_do_request(sc, &req, (char *)buf + offset); 1482 if (error != 0) { 1483 device_printf(sc->sc_dev, 1484 "could not multi write MAC register: %s\n", 1485 usbd_errstr(error)); 1486 return (error); 1487 } 1488 } 1489 1490 return (USB_ERR_NORMAL_COMPLETION); 1491} 1492 1493static usb_error_t 1494rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1495{ 1496 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1497} 1498 1499static usb_error_t 1500rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1501{ 1502 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1503} 1504 1505static usb_error_t 1506rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1507{ 1508 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1509} 1510 1511static int 1512rum_bbp_busy(struct rum_softc *sc) 1513{ 1514 int ntries; 1515 1516 for (ntries = 0; ntries < 100; ntries++) { 1517 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1518 break; 1519 if (rum_pause(sc, hz / 100)) 1520 break; 1521 } 1522 if (ntries == 100) 1523 return (ETIMEDOUT); 1524 1525 return (0); 1526} 1527 1528static void 1529rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1530{ 1531 uint32_t tmp; 1532 1533 DPRINTFN(2, "reg=0x%08x\n", reg); 1534 1535 if (rum_bbp_busy(sc) != 0) { 1536 device_printf(sc->sc_dev, "could not write to BBP\n"); 1537 return; 1538 } 1539 1540 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1541 rum_write(sc, RT2573_PHY_CSR3, tmp); 1542} 1543 1544static uint8_t 1545rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1546{ 1547 uint32_t val; 1548 int ntries; 1549 1550 DPRINTFN(2, "reg=0x%08x\n", reg); 1551 1552 if (rum_bbp_busy(sc) != 0) { 1553 device_printf(sc->sc_dev, "could not read BBP\n"); 1554 return 0; 1555 } 1556 1557 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1558 rum_write(sc, RT2573_PHY_CSR3, val); 1559 1560 for (ntries = 0; ntries < 100; ntries++) { 1561 val = rum_read(sc, RT2573_PHY_CSR3); 1562 if (!(val & RT2573_BBP_BUSY)) 1563 return val & 0xff; 1564 if (rum_pause(sc, hz / 100)) 1565 break; 1566 } 1567 1568 device_printf(sc->sc_dev, "could not read BBP\n"); 1569 return 0; 1570} 1571 1572static void 1573rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1574{ 1575 uint32_t tmp; 1576 int ntries; 1577 1578 for (ntries = 0; ntries < 100; ntries++) { 1579 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1580 break; 1581 if (rum_pause(sc, hz / 100)) 1582 break; 1583 } 1584 if (ntries == 100) { 1585 device_printf(sc->sc_dev, "could not write to RF\n"); 1586 return; 1587 } 1588 1589 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1590 (reg & 3); 1591 rum_write(sc, RT2573_PHY_CSR4, tmp); 1592 1593 /* remember last written value in sc */ 1594 sc->rf_regs[reg] = val; 1595 1596 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1597} 1598 1599static void 1600rum_select_antenna(struct rum_softc *sc) 1601{ 1602 uint8_t bbp4, bbp77; 1603 uint32_t tmp; 1604 1605 bbp4 = rum_bbp_read(sc, 4); 1606 bbp77 = rum_bbp_read(sc, 77); 1607 1608 /* TBD */ 1609 1610 /* make sure Rx is disabled before switching antenna */ 1611 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1612 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1613 1614 rum_bbp_write(sc, 4, bbp4); 1615 rum_bbp_write(sc, 77, bbp77); 1616 1617 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1618} 1619 1620/* 1621 * Enable multi-rate retries for frames sent at OFDM rates. 1622 * In 802.11b/g mode, allow fallback to CCK rates. 1623 */ 1624static void 1625rum_enable_mrr(struct rum_softc *sc) 1626{ 1627 struct ieee80211com *ic = &sc->sc_ic; 1628 1629 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1630 rum_setbits(sc, RT2573_TXRX_CSR4, 1631 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1632 } else { 1633 rum_modbits(sc, RT2573_TXRX_CSR4, 1634 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1635 } 1636} 1637 1638static void 1639rum_set_txpreamble(struct rum_softc *sc) 1640{ 1641 struct ieee80211com *ic = &sc->sc_ic; 1642 1643 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1644 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1645 else 1646 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1647} 1648 1649static void 1650rum_set_basicrates(struct rum_softc *sc) 1651{ 1652 struct ieee80211com *ic = &sc->sc_ic; 1653 1654 /* update basic rate set */ 1655 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1656 /* 11b basic rates: 1, 2Mbps */ 1657 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1658 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1659 /* 11a basic rates: 6, 12, 24Mbps */ 1660 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1661 } else { 1662 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1663 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1664 } 1665} 1666 1667/* 1668 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1669 * driver. 1670 */ 1671static void 1672rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1673{ 1674 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1675 1676 /* update all BBP registers that depend on the band */ 1677 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1678 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1679 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1680 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1681 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1682 } 1683 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1684 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1685 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1686 } 1687 1688 sc->bbp17 = bbp17; 1689 rum_bbp_write(sc, 17, bbp17); 1690 rum_bbp_write(sc, 96, bbp96); 1691 rum_bbp_write(sc, 104, bbp104); 1692 1693 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1694 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1695 rum_bbp_write(sc, 75, 0x80); 1696 rum_bbp_write(sc, 86, 0x80); 1697 rum_bbp_write(sc, 88, 0x80); 1698 } 1699 1700 rum_bbp_write(sc, 35, bbp35); 1701 rum_bbp_write(sc, 97, bbp97); 1702 rum_bbp_write(sc, 98, bbp98); 1703 1704 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1705 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1706 RT2573_PA_PE_5GHZ); 1707 } else { 1708 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1709 RT2573_PA_PE_2GHZ); 1710 } 1711} 1712 1713static void 1714rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1715{ 1716 struct ieee80211com *ic = &sc->sc_ic; 1717 const struct rfprog *rfprog; 1718 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1719 int8_t power; 1720 int i, chan; 1721 1722 chan = ieee80211_chan2ieee(ic, c); 1723 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1724 return; 1725 1726 /* select the appropriate RF settings based on what EEPROM says */ 1727 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1728 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1729 1730 /* find the settings for this channel (we know it exists) */ 1731 for (i = 0; rfprog[i].chan != chan; i++); 1732 1733 power = sc->txpow[i]; 1734 if (power < 0) { 1735 bbp94 += power; 1736 power = 0; 1737 } else if (power > 31) { 1738 bbp94 += power - 31; 1739 power = 31; 1740 } 1741 1742 /* 1743 * If we are switching from the 2GHz band to the 5GHz band or 1744 * vice-versa, BBP registers need to be reprogrammed. 1745 */ 1746 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1747 rum_select_band(sc, c); 1748 rum_select_antenna(sc); 1749 } 1750 ic->ic_curchan = c; 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); 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 | 1); 1760 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1761 1762 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1763 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1764 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1765 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1766 1767 rum_pause(sc, hz / 100); 1768 1769 /* enable smart mode for MIMO-capable RFs */ 1770 bbp3 = rum_bbp_read(sc, 3); 1771 1772 bbp3 &= ~RT2573_SMART_MODE; 1773 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1774 bbp3 |= RT2573_SMART_MODE; 1775 1776 rum_bbp_write(sc, 3, bbp3); 1777 1778 if (bbp94 != RT2573_BBPR94_DEFAULT) 1779 rum_bbp_write(sc, 94, bbp94); 1780 1781 /* give the chip some extra time to do the switchover */ 1782 rum_pause(sc, hz / 100); 1783} 1784 1785/* 1786 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1787 * and HostAP operating modes. 1788 */ 1789static int 1790rum_enable_tsf_sync(struct rum_softc *sc) 1791{ 1792 struct ieee80211com *ic = &sc->sc_ic; 1793 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1794 uint32_t tmp; 1795 1796 if (vap->iv_opmode != IEEE80211_M_STA) { 1797 /* 1798 * Change default 16ms TBTT adjustment to 8ms. 1799 * Must be done before enabling beacon generation. 1800 */ 1801 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 1802 return EIO; 1803 } 1804 1805 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1806 1807 /* set beacon interval (in 1/16ms unit) */ 1808 tmp |= vap->iv_bss->ni_intval * 16; 1809 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1810 1811 switch (vap->iv_opmode) { 1812 case IEEE80211_M_STA: 1813 /* 1814 * Local TSF is always updated with remote TSF on beacon 1815 * reception. 1816 */ 1817 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 1818 break; 1819 case IEEE80211_M_IBSS: 1820 /* 1821 * Local TSF is updated with remote TSF on beacon reception 1822 * only if the remote TSF is greater than local TSF. 1823 */ 1824 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 1825 tmp |= RT2573_BCN_TX_EN; 1826 break; 1827 case IEEE80211_M_HOSTAP: 1828 /* SYNC with nobody */ 1829 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 1830 tmp |= RT2573_BCN_TX_EN; 1831 break; 1832 default: 1833 device_printf(sc->sc_dev, 1834 "Enabling TSF failed. undefined opmode %d\n", 1835 vap->iv_opmode); 1836 return EINVAL; 1837 } 1838 1839 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 1840 return EIO; 1841 1842 return 0; 1843} 1844 1845static void 1846rum_enable_tsf(struct rum_softc *sc) 1847{ 1848 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 1849 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 1850} 1851 1852static void 1853rum_abort_tsf_sync(struct rum_softc *sc) 1854{ 1855 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 1856} 1857 1858static void 1859rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 1860{ 1861 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 1862} 1863 1864static void 1865rum_update_slot(struct rum_softc *sc) 1866{ 1867 struct ieee80211com *ic = &sc->sc_ic; 1868 uint8_t slottime; 1869 1870 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1871 1872 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 1873 1874 DPRINTF("setting slot time to %uus\n", slottime); 1875} 1876 1877static void 1878rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1879{ 1880 1881 rum_write(sc, RT2573_MAC_CSR4, 1882 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 1883 rum_write(sc, RT2573_MAC_CSR5, 1884 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 1885} 1886 1887static void 1888rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1889{ 1890 1891 rum_write(sc, RT2573_MAC_CSR2, 1892 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 1893 rum_write(sc, RT2573_MAC_CSR3, 1894 addr[4] | addr[5] << 8 | 0xff << 16); 1895} 1896 1897static void 1898rum_setpromisc(struct rum_softc *sc) 1899{ 1900 struct ieee80211com *ic = &sc->sc_ic; 1901 1902 if (ic->ic_promisc == 0) 1903 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1904 else 1905 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1906 1907 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 1908 "entering" : "leaving"); 1909} 1910 1911static void 1912rum_update_promisc(struct ieee80211com *ic) 1913{ 1914 struct rum_softc *sc = ic->ic_softc; 1915 1916 RUM_LOCK(sc); 1917 if (sc->sc_running) 1918 rum_setpromisc(sc); 1919 RUM_UNLOCK(sc); 1920} 1921 1922static void 1923rum_update_mcast(struct ieee80211com *ic) 1924{ 1925 /* Ignore. */ 1926} 1927 1928static const char * 1929rum_get_rf(int rev) 1930{ 1931 switch (rev) { 1932 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1933 case RT2573_RF_2528: return "RT2528"; 1934 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1935 case RT2573_RF_5226: return "RT5226"; 1936 default: return "unknown"; 1937 } 1938} 1939 1940static void 1941rum_read_eeprom(struct rum_softc *sc) 1942{ 1943 uint16_t val; 1944#ifdef RUM_DEBUG 1945 int i; 1946#endif 1947 1948 /* read MAC address */ 1949 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 1950 1951 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1952 val = le16toh(val); 1953 sc->rf_rev = (val >> 11) & 0x1f; 1954 sc->hw_radio = (val >> 10) & 0x1; 1955 sc->rx_ant = (val >> 4) & 0x3; 1956 sc->tx_ant = (val >> 2) & 0x3; 1957 sc->nb_ant = val & 0x3; 1958 1959 DPRINTF("RF revision=%d\n", sc->rf_rev); 1960 1961 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1962 val = le16toh(val); 1963 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1964 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1965 1966 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1967 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1968 1969 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1970 val = le16toh(val); 1971 if ((val & 0xff) != 0xff) 1972 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1973 1974 /* Only [-10, 10] is valid */ 1975 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1976 sc->rssi_2ghz_corr = 0; 1977 1978 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1979 val = le16toh(val); 1980 if ((val & 0xff) != 0xff) 1981 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1982 1983 /* Only [-10, 10] is valid */ 1984 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1985 sc->rssi_5ghz_corr = 0; 1986 1987 if (sc->ext_2ghz_lna) 1988 sc->rssi_2ghz_corr -= 14; 1989 if (sc->ext_5ghz_lna) 1990 sc->rssi_5ghz_corr -= 14; 1991 1992 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 1993 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 1994 1995 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 1996 val = le16toh(val); 1997 if ((val & 0xff) != 0xff) 1998 sc->rffreq = val & 0xff; 1999 2000 DPRINTF("RF freq=%d\n", sc->rffreq); 2001 2002 /* read Tx power for all a/b/g channels */ 2003 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2004 /* XXX default Tx power for 802.11a channels */ 2005 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2006#ifdef RUM_DEBUG 2007 for (i = 0; i < 14; i++) 2008 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2009#endif 2010 2011 /* read default values for BBP registers */ 2012 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2013#ifdef RUM_DEBUG 2014 for (i = 0; i < 14; i++) { 2015 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2016 continue; 2017 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2018 sc->bbp_prom[i].val); 2019 } 2020#endif 2021} 2022 2023static int 2024rum_bbp_wakeup(struct rum_softc *sc) 2025{ 2026 unsigned int ntries; 2027 2028 for (ntries = 0; ntries < 100; ntries++) { 2029 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2030 break; 2031 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2032 if (rum_pause(sc, hz / 100)) 2033 break; 2034 } 2035 if (ntries == 100) { 2036 device_printf(sc->sc_dev, 2037 "timeout waiting for BBP/RF to wakeup\n"); 2038 return (ETIMEDOUT); 2039 } 2040 2041 return (0); 2042} 2043 2044static int 2045rum_bbp_init(struct rum_softc *sc) 2046{ 2047 int i, ntries; 2048 2049 /* wait for BBP to be ready */ 2050 for (ntries = 0; ntries < 100; ntries++) { 2051 const uint8_t val = rum_bbp_read(sc, 0); 2052 if (val != 0 && val != 0xff) 2053 break; 2054 if (rum_pause(sc, hz / 100)) 2055 break; 2056 } 2057 if (ntries == 100) { 2058 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2059 return EIO; 2060 } 2061 2062 /* initialize BBP registers to default values */ 2063 for (i = 0; i < nitems(rum_def_bbp); i++) 2064 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2065 2066 /* write vendor-specific BBP values (from EEPROM) */ 2067 for (i = 0; i < 16; i++) { 2068 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2069 continue; 2070 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2071 } 2072 2073 return 0; 2074} 2075 2076static int 2077rum_init(struct rum_softc *sc) 2078{ 2079 struct ieee80211com *ic = &sc->sc_ic; 2080 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2081 uint32_t tmp; 2082 int i, ret; 2083 2084 RUM_LOCK(sc); 2085 if (sc->sc_running) { 2086 ret = 0; 2087 goto end; 2088 } 2089 2090 /* initialize MAC registers to default values */ 2091 for (i = 0; i < nitems(rum_def_mac); i++) 2092 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2093 2094 /* set host ready */ 2095 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2096 rum_write(sc, RT2573_MAC_CSR1, 0); 2097 2098 /* wait for BBP/RF to wakeup */ 2099 if ((ret = rum_bbp_wakeup(sc)) != 0) 2100 goto end; 2101 2102 if ((ret = rum_bbp_init(sc)) != 0) 2103 goto end; 2104 2105 /* select default channel */ 2106 rum_select_band(sc, ic->ic_curchan); 2107 rum_select_antenna(sc); 2108 rum_set_chan(sc, ic->ic_curchan); 2109 2110 /* clear STA registers */ 2111 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2112 2113 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2114 2115 /* initialize ASIC */ 2116 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2117 2118 /* 2119 * Allocate Tx and Rx xfer queues. 2120 */ 2121 rum_setup_tx_list(sc); 2122 2123 /* update Rx filter */ 2124 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2125 2126 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2127 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2128 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2129 RT2573_DROP_ACKCTS; 2130 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2131 tmp |= RT2573_DROP_TODS; 2132 if (ic->ic_promisc == 0) 2133 tmp |= RT2573_DROP_NOT_TO_ME; 2134 } 2135 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2136 2137 sc->sc_running = 1; 2138 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2139 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2140 2141end: RUM_UNLOCK(sc); 2142 2143 if (ret != 0) 2144 rum_stop(sc); 2145 2146 return ret; 2147} 2148 2149static void 2150rum_stop(struct rum_softc *sc) 2151{ 2152 2153 RUM_LOCK(sc); 2154 if (!sc->sc_running) { 2155 RUM_UNLOCK(sc); 2156 return; 2157 } 2158 sc->sc_running = 0; 2159 RUM_UNLOCK(sc); 2160 2161 /* 2162 * Drain the USB transfers, if not already drained: 2163 */ 2164 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2165 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2166 2167 RUM_LOCK(sc); 2168 rum_unsetup_tx_list(sc); 2169 2170 /* disable Rx */ 2171 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2172 2173 /* reset ASIC */ 2174 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2175 rum_write(sc, RT2573_MAC_CSR1, 0); 2176 RUM_UNLOCK(sc); 2177} 2178 2179static void 2180rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2181{ 2182 struct usb_device_request req; 2183 uint16_t reg = RT2573_MCU_CODE_BASE; 2184 usb_error_t err; 2185 2186 /* copy firmware image into NIC */ 2187 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2188 err = rum_write(sc, reg, UGETDW(ucode)); 2189 if (err) { 2190 /* firmware already loaded ? */ 2191 device_printf(sc->sc_dev, "Firmware load " 2192 "failure! (ignored)\n"); 2193 break; 2194 } 2195 } 2196 2197 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2198 req.bRequest = RT2573_MCU_CNTL; 2199 USETW(req.wValue, RT2573_MCU_RUN); 2200 USETW(req.wIndex, 0); 2201 USETW(req.wLength, 0); 2202 2203 err = rum_do_request(sc, &req, NULL); 2204 if (err != 0) { 2205 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2206 usbd_errstr(err)); 2207 } 2208 2209 /* give the chip some time to boot */ 2210 rum_pause(sc, hz / 8); 2211} 2212 2213static int 2214rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2215{ 2216 struct ieee80211com *ic = vap->iv_ic; 2217 struct rum_vap *rvp = RUM_VAP(vap); 2218 struct mbuf *m = rvp->bcn_mbuf; 2219 const struct ieee80211_txparam *tp; 2220 struct rum_tx_desc desc; 2221 2222 RUM_LOCK_ASSERT(sc); 2223 2224 if (m == NULL) 2225 return EINVAL; 2226 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2227 return EINVAL; 2228 2229 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2230 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2231 m->m_pkthdr.len, tp->mgmtrate); 2232 2233 /* copy the Tx descriptor into NIC memory */ 2234 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2235 RT2573_TX_DESC_SIZE) != 0) 2236 return EIO; 2237 2238 /* copy beacon header and payload into NIC memory */ 2239 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2240 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2241 return EIO; 2242 2243 return 0; 2244} 2245 2246static int 2247rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2248{ 2249 struct rum_vap *rvp = RUM_VAP(vap); 2250 struct ieee80211_node *ni = vap->iv_bss; 2251 struct mbuf *m; 2252 2253 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2254 return EINVAL; 2255 2256 m = ieee80211_beacon_alloc(ni, &vap->iv_bcn_off); 2257 if (m == NULL) 2258 return ENOMEM; 2259 2260 if (rvp->bcn_mbuf != NULL) 2261 m_freem(rvp->bcn_mbuf); 2262 2263 rvp->bcn_mbuf = m; 2264 2265 return (rum_set_beacon(sc, vap)); 2266} 2267 2268static int 2269rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2270 const struct ieee80211_bpf_params *params) 2271{ 2272 struct rum_softc *sc = ni->ni_ic->ic_softc; 2273 int ret; 2274 2275 RUM_LOCK(sc); 2276 /* prevent management frames from being sent if we're not ready */ 2277 if (!sc->sc_running) { 2278 ret = ENETDOWN; 2279 goto bad; 2280 } 2281 if (sc->tx_nfree < RUM_TX_MINFREE) { 2282 ret = EIO; 2283 goto bad; 2284 } 2285 2286 if (params == NULL) { 2287 /* 2288 * Legacy path; interpret frame contents to decide 2289 * precisely how to send the frame. 2290 */ 2291 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 2292 goto bad; 2293 } else { 2294 /* 2295 * Caller supplied explicit parameters to use in 2296 * sending the frame. 2297 */ 2298 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 2299 goto bad; 2300 } 2301 RUM_UNLOCK(sc); 2302 2303 return 0; 2304bad: 2305 RUM_UNLOCK(sc); 2306 m_freem(m); 2307 ieee80211_free_node(ni); 2308 return ret; 2309} 2310 2311static void 2312rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2313{ 2314 struct ieee80211vap *vap = ni->ni_vap; 2315 struct rum_vap *rvp = RUM_VAP(vap); 2316 2317 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2318 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2319 2320 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2321} 2322 2323static void 2324rum_ratectl_timeout(void *arg) 2325{ 2326 struct rum_vap *rvp = arg; 2327 struct ieee80211vap *vap = &rvp->vap; 2328 struct ieee80211com *ic = vap->iv_ic; 2329 2330 ieee80211_runtask(ic, &rvp->ratectl_task); 2331} 2332 2333static void 2334rum_ratectl_task(void *arg, int pending) 2335{ 2336 struct rum_vap *rvp = arg; 2337 struct ieee80211vap *vap = &rvp->vap; 2338 struct ieee80211com *ic = vap->iv_ic; 2339 struct rum_softc *sc = ic->ic_softc; 2340 struct ieee80211_node *ni; 2341 int ok, fail; 2342 int sum, retrycnt; 2343 2344 RUM_LOCK(sc); 2345 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2346 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2347 2348 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2349 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2350 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2351 sum = ok+fail; 2352 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2353 2354 ni = ieee80211_ref_node(vap->iv_bss); 2355 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2356 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2357 ieee80211_free_node(ni); 2358 2359 /* count TX retry-fail as Tx errors */ 2360 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2361 2362 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2363 RUM_UNLOCK(sc); 2364} 2365 2366static void 2367rum_scan_start(struct ieee80211com *ic) 2368{ 2369 struct rum_softc *sc = ic->ic_softc; 2370 2371 RUM_LOCK(sc); 2372 rum_abort_tsf_sync(sc); 2373 rum_set_bssid(sc, ieee80211broadcastaddr); 2374 RUM_UNLOCK(sc); 2375 2376} 2377 2378static void 2379rum_scan_end(struct ieee80211com *ic) 2380{ 2381 struct rum_softc *sc = ic->ic_softc; 2382 2383 RUM_LOCK(sc); 2384 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 2385 rum_enable_tsf_sync(sc); 2386 else 2387 rum_enable_tsf(sc); 2388 rum_set_bssid(sc, sc->sc_bssid); 2389 RUM_UNLOCK(sc); 2390 2391} 2392 2393static void 2394rum_set_channel(struct ieee80211com *ic) 2395{ 2396 struct rum_softc *sc = ic->ic_softc; 2397 2398 RUM_LOCK(sc); 2399 rum_set_chan(sc, ic->ic_curchan); 2400 RUM_UNLOCK(sc); 2401} 2402 2403static int 2404rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2405{ 2406 struct ieee80211com *ic = &sc->sc_ic; 2407 int lna, agc, rssi; 2408 2409 lna = (raw >> 5) & 0x3; 2410 agc = raw & 0x1f; 2411 2412 if (lna == 0) { 2413 /* 2414 * No RSSI mapping 2415 * 2416 * NB: Since RSSI is relative to noise floor, -1 is 2417 * adequate for caller to know error happened. 2418 */ 2419 return -1; 2420 } 2421 2422 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2423 2424 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2425 rssi += sc->rssi_2ghz_corr; 2426 2427 if (lna == 1) 2428 rssi -= 64; 2429 else if (lna == 2) 2430 rssi -= 74; 2431 else if (lna == 3) 2432 rssi -= 90; 2433 } else { 2434 rssi += sc->rssi_5ghz_corr; 2435 2436 if (!sc->ext_5ghz_lna && lna != 1) 2437 rssi += 4; 2438 2439 if (lna == 1) 2440 rssi -= 64; 2441 else if (lna == 2) 2442 rssi -= 86; 2443 else if (lna == 3) 2444 rssi -= 100; 2445 } 2446 return rssi; 2447} 2448 2449static int 2450rum_pause(struct rum_softc *sc, int timeout) 2451{ 2452 2453 usb_pause_mtx(&sc->sc_mtx, timeout); 2454 return (0); 2455} 2456 2457static device_method_t rum_methods[] = { 2458 /* Device interface */ 2459 DEVMETHOD(device_probe, rum_match), 2460 DEVMETHOD(device_attach, rum_attach), 2461 DEVMETHOD(device_detach, rum_detach), 2462 DEVMETHOD_END 2463}; 2464 2465static driver_t rum_driver = { 2466 .name = "rum", 2467 .methods = rum_methods, 2468 .size = sizeof(struct rum_softc), 2469}; 2470 2471static devclass_t rum_devclass; 2472 2473DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2474MODULE_DEPEND(rum, wlan, 1, 1, 1); 2475MODULE_DEPEND(rum, usb, 1, 1, 1); 2476MODULE_VERSION(rum, 1); 2477