if_rum.c revision 288631
1/* $FreeBSD: head/sys/dev/usb/wlan/if_rum.c 288631 2015-10-03 20:44:16Z 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 288631 2015-10-03 20:44:16Z 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 int rum_raw_xmit(struct ieee80211_node *, struct mbuf *, 231 const struct ieee80211_bpf_params *); 232static void rum_scan_start(struct ieee80211com *); 233static void rum_scan_end(struct ieee80211com *); 234static void rum_set_channel(struct ieee80211com *); 235static int rum_get_rssi(struct rum_softc *, uint8_t); 236static void rum_ratectl_start(struct rum_softc *, 237 struct ieee80211_node *); 238static void rum_ratectl_timeout(void *); 239static void rum_ratectl_task(void *, int); 240static int rum_pause(struct rum_softc *, int); 241 242static const struct { 243 uint32_t reg; 244 uint32_t val; 245} rum_def_mac[] = { 246 { RT2573_TXRX_CSR0, 0x025fb032 }, 247 { RT2573_TXRX_CSR1, 0x9eaa9eaf }, 248 { RT2573_TXRX_CSR2, 0x8a8b8c8d }, 249 { RT2573_TXRX_CSR3, 0x00858687 }, 250 { RT2573_TXRX_CSR7, 0x2e31353b }, 251 { RT2573_TXRX_CSR8, 0x2a2a2a2c }, 252 { RT2573_TXRX_CSR15, 0x0000000f }, 253 { RT2573_MAC_CSR6, 0x00000fff }, 254 { RT2573_MAC_CSR8, 0x016c030a }, 255 { RT2573_MAC_CSR10, 0x00000718 }, 256 { RT2573_MAC_CSR12, 0x00000004 }, 257 { RT2573_MAC_CSR13, 0x00007f00 }, 258 { RT2573_SEC_CSR0, 0x00000000 }, 259 { RT2573_SEC_CSR1, 0x00000000 }, 260 { RT2573_SEC_CSR5, 0x00000000 }, 261 { RT2573_PHY_CSR1, 0x000023b0 }, 262 { RT2573_PHY_CSR5, 0x00040a06 }, 263 { RT2573_PHY_CSR6, 0x00080606 }, 264 { RT2573_PHY_CSR7, 0x00000408 }, 265 { RT2573_AIFSN_CSR, 0x00002273 }, 266 { RT2573_CWMIN_CSR, 0x00002344 }, 267 { RT2573_CWMAX_CSR, 0x000034aa } 268}; 269 270static const struct { 271 uint8_t reg; 272 uint8_t val; 273} rum_def_bbp[] = { 274 { 3, 0x80 }, 275 { 15, 0x30 }, 276 { 17, 0x20 }, 277 { 21, 0xc8 }, 278 { 22, 0x38 }, 279 { 23, 0x06 }, 280 { 24, 0xfe }, 281 { 25, 0x0a }, 282 { 26, 0x0d }, 283 { 32, 0x0b }, 284 { 34, 0x12 }, 285 { 37, 0x07 }, 286 { 39, 0xf8 }, 287 { 41, 0x60 }, 288 { 53, 0x10 }, 289 { 54, 0x18 }, 290 { 60, 0x10 }, 291 { 61, 0x04 }, 292 { 62, 0x04 }, 293 { 75, 0xfe }, 294 { 86, 0xfe }, 295 { 88, 0xfe }, 296 { 90, 0x0f }, 297 { 99, 0x00 }, 298 { 102, 0x16 }, 299 { 107, 0x04 } 300}; 301 302static const struct rfprog { 303 uint8_t chan; 304 uint32_t r1, r2, r3, r4; 305} rum_rf5226[] = { 306 { 1, 0x00b03, 0x001e1, 0x1a014, 0x30282 }, 307 { 2, 0x00b03, 0x001e1, 0x1a014, 0x30287 }, 308 { 3, 0x00b03, 0x001e2, 0x1a014, 0x30282 }, 309 { 4, 0x00b03, 0x001e2, 0x1a014, 0x30287 }, 310 { 5, 0x00b03, 0x001e3, 0x1a014, 0x30282 }, 311 { 6, 0x00b03, 0x001e3, 0x1a014, 0x30287 }, 312 { 7, 0x00b03, 0x001e4, 0x1a014, 0x30282 }, 313 { 8, 0x00b03, 0x001e4, 0x1a014, 0x30287 }, 314 { 9, 0x00b03, 0x001e5, 0x1a014, 0x30282 }, 315 { 10, 0x00b03, 0x001e5, 0x1a014, 0x30287 }, 316 { 11, 0x00b03, 0x001e6, 0x1a014, 0x30282 }, 317 { 12, 0x00b03, 0x001e6, 0x1a014, 0x30287 }, 318 { 13, 0x00b03, 0x001e7, 0x1a014, 0x30282 }, 319 { 14, 0x00b03, 0x001e8, 0x1a014, 0x30284 }, 320 321 { 34, 0x00b03, 0x20266, 0x36014, 0x30282 }, 322 { 38, 0x00b03, 0x20267, 0x36014, 0x30284 }, 323 { 42, 0x00b03, 0x20268, 0x36014, 0x30286 }, 324 { 46, 0x00b03, 0x20269, 0x36014, 0x30288 }, 325 326 { 36, 0x00b03, 0x00266, 0x26014, 0x30288 }, 327 { 40, 0x00b03, 0x00268, 0x26014, 0x30280 }, 328 { 44, 0x00b03, 0x00269, 0x26014, 0x30282 }, 329 { 48, 0x00b03, 0x0026a, 0x26014, 0x30284 }, 330 { 52, 0x00b03, 0x0026b, 0x26014, 0x30286 }, 331 { 56, 0x00b03, 0x0026c, 0x26014, 0x30288 }, 332 { 60, 0x00b03, 0x0026e, 0x26014, 0x30280 }, 333 { 64, 0x00b03, 0x0026f, 0x26014, 0x30282 }, 334 335 { 100, 0x00b03, 0x0028a, 0x2e014, 0x30280 }, 336 { 104, 0x00b03, 0x0028b, 0x2e014, 0x30282 }, 337 { 108, 0x00b03, 0x0028c, 0x2e014, 0x30284 }, 338 { 112, 0x00b03, 0x0028d, 0x2e014, 0x30286 }, 339 { 116, 0x00b03, 0x0028e, 0x2e014, 0x30288 }, 340 { 120, 0x00b03, 0x002a0, 0x2e014, 0x30280 }, 341 { 124, 0x00b03, 0x002a1, 0x2e014, 0x30282 }, 342 { 128, 0x00b03, 0x002a2, 0x2e014, 0x30284 }, 343 { 132, 0x00b03, 0x002a3, 0x2e014, 0x30286 }, 344 { 136, 0x00b03, 0x002a4, 0x2e014, 0x30288 }, 345 { 140, 0x00b03, 0x002a6, 0x2e014, 0x30280 }, 346 347 { 149, 0x00b03, 0x002a8, 0x2e014, 0x30287 }, 348 { 153, 0x00b03, 0x002a9, 0x2e014, 0x30289 }, 349 { 157, 0x00b03, 0x002ab, 0x2e014, 0x30281 }, 350 { 161, 0x00b03, 0x002ac, 0x2e014, 0x30283 }, 351 { 165, 0x00b03, 0x002ad, 0x2e014, 0x30285 } 352}, rum_rf5225[] = { 353 { 1, 0x00b33, 0x011e1, 0x1a014, 0x30282 }, 354 { 2, 0x00b33, 0x011e1, 0x1a014, 0x30287 }, 355 { 3, 0x00b33, 0x011e2, 0x1a014, 0x30282 }, 356 { 4, 0x00b33, 0x011e2, 0x1a014, 0x30287 }, 357 { 5, 0x00b33, 0x011e3, 0x1a014, 0x30282 }, 358 { 6, 0x00b33, 0x011e3, 0x1a014, 0x30287 }, 359 { 7, 0x00b33, 0x011e4, 0x1a014, 0x30282 }, 360 { 8, 0x00b33, 0x011e4, 0x1a014, 0x30287 }, 361 { 9, 0x00b33, 0x011e5, 0x1a014, 0x30282 }, 362 { 10, 0x00b33, 0x011e5, 0x1a014, 0x30287 }, 363 { 11, 0x00b33, 0x011e6, 0x1a014, 0x30282 }, 364 { 12, 0x00b33, 0x011e6, 0x1a014, 0x30287 }, 365 { 13, 0x00b33, 0x011e7, 0x1a014, 0x30282 }, 366 { 14, 0x00b33, 0x011e8, 0x1a014, 0x30284 }, 367 368 { 34, 0x00b33, 0x01266, 0x26014, 0x30282 }, 369 { 38, 0x00b33, 0x01267, 0x26014, 0x30284 }, 370 { 42, 0x00b33, 0x01268, 0x26014, 0x30286 }, 371 { 46, 0x00b33, 0x01269, 0x26014, 0x30288 }, 372 373 { 36, 0x00b33, 0x01266, 0x26014, 0x30288 }, 374 { 40, 0x00b33, 0x01268, 0x26014, 0x30280 }, 375 { 44, 0x00b33, 0x01269, 0x26014, 0x30282 }, 376 { 48, 0x00b33, 0x0126a, 0x26014, 0x30284 }, 377 { 52, 0x00b33, 0x0126b, 0x26014, 0x30286 }, 378 { 56, 0x00b33, 0x0126c, 0x26014, 0x30288 }, 379 { 60, 0x00b33, 0x0126e, 0x26014, 0x30280 }, 380 { 64, 0x00b33, 0x0126f, 0x26014, 0x30282 }, 381 382 { 100, 0x00b33, 0x0128a, 0x2e014, 0x30280 }, 383 { 104, 0x00b33, 0x0128b, 0x2e014, 0x30282 }, 384 { 108, 0x00b33, 0x0128c, 0x2e014, 0x30284 }, 385 { 112, 0x00b33, 0x0128d, 0x2e014, 0x30286 }, 386 { 116, 0x00b33, 0x0128e, 0x2e014, 0x30288 }, 387 { 120, 0x00b33, 0x012a0, 0x2e014, 0x30280 }, 388 { 124, 0x00b33, 0x012a1, 0x2e014, 0x30282 }, 389 { 128, 0x00b33, 0x012a2, 0x2e014, 0x30284 }, 390 { 132, 0x00b33, 0x012a3, 0x2e014, 0x30286 }, 391 { 136, 0x00b33, 0x012a4, 0x2e014, 0x30288 }, 392 { 140, 0x00b33, 0x012a6, 0x2e014, 0x30280 }, 393 394 { 149, 0x00b33, 0x012a8, 0x2e014, 0x30287 }, 395 { 153, 0x00b33, 0x012a9, 0x2e014, 0x30289 }, 396 { 157, 0x00b33, 0x012ab, 0x2e014, 0x30281 }, 397 { 161, 0x00b33, 0x012ac, 0x2e014, 0x30283 }, 398 { 165, 0x00b33, 0x012ad, 0x2e014, 0x30285 } 399}; 400 401static const struct usb_config rum_config[RUM_N_TRANSFER] = { 402 [RUM_BULK_WR] = { 403 .type = UE_BULK, 404 .endpoint = UE_ADDR_ANY, 405 .direction = UE_DIR_OUT, 406 .bufsize = (MCLBYTES + RT2573_TX_DESC_SIZE + 8), 407 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 408 .callback = rum_bulk_write_callback, 409 .timeout = 5000, /* ms */ 410 }, 411 [RUM_BULK_RD] = { 412 .type = UE_BULK, 413 .endpoint = UE_ADDR_ANY, 414 .direction = UE_DIR_IN, 415 .bufsize = (MCLBYTES + RT2573_RX_DESC_SIZE), 416 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 417 .callback = rum_bulk_read_callback, 418 }, 419}; 420 421static int 422rum_match(device_t self) 423{ 424 struct usb_attach_arg *uaa = device_get_ivars(self); 425 426 if (uaa->usb_mode != USB_MODE_HOST) 427 return (ENXIO); 428 if (uaa->info.bConfigIndex != 0) 429 return (ENXIO); 430 if (uaa->info.bIfaceIndex != RT2573_IFACE_INDEX) 431 return (ENXIO); 432 433 return (usbd_lookup_id_by_uaa(rum_devs, sizeof(rum_devs), uaa)); 434} 435 436static int 437rum_attach(device_t self) 438{ 439 struct usb_attach_arg *uaa = device_get_ivars(self); 440 struct rum_softc *sc = device_get_softc(self); 441 struct ieee80211com *ic = &sc->sc_ic; 442 uint8_t iface_index, bands; 443 uint32_t tmp; 444 int error, ntries; 445 446 device_set_usb_desc(self); 447 sc->sc_udev = uaa->device; 448 sc->sc_dev = self; 449 450 RUM_LOCK_INIT(sc); 451 RUM_CMDQ_LOCK_INIT(sc); 452 mbufq_init(&sc->sc_snd, ifqmaxlen); 453 454 iface_index = RT2573_IFACE_INDEX; 455 error = usbd_transfer_setup(uaa->device, &iface_index, 456 sc->sc_xfer, rum_config, RUM_N_TRANSFER, sc, &sc->sc_mtx); 457 if (error) { 458 device_printf(self, "could not allocate USB transfers, " 459 "err=%s\n", usbd_errstr(error)); 460 goto detach; 461 } 462 463 RUM_LOCK(sc); 464 /* retrieve RT2573 rev. no */ 465 for (ntries = 0; ntries < 100; ntries++) { 466 if ((tmp = rum_read(sc, RT2573_MAC_CSR0)) != 0) 467 break; 468 if (rum_pause(sc, hz / 100)) 469 break; 470 } 471 if (ntries == 100) { 472 device_printf(sc->sc_dev, "timeout waiting for chip to settle\n"); 473 RUM_UNLOCK(sc); 474 goto detach; 475 } 476 477 /* retrieve MAC address and various other things from EEPROM */ 478 rum_read_eeprom(sc); 479 480 device_printf(sc->sc_dev, "MAC/BBP RT2573 (rev 0x%05x), RF %s\n", 481 tmp, rum_get_rf(sc->rf_rev)); 482 483 rum_load_microcode(sc, rt2573_ucode, sizeof(rt2573_ucode)); 484 RUM_UNLOCK(sc); 485 486 ic->ic_softc = sc; 487 ic->ic_name = device_get_nameunit(self); 488 ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 489 490 /* set device capabilities */ 491 ic->ic_caps = 492 IEEE80211_C_STA /* station mode supported */ 493 | IEEE80211_C_IBSS /* IBSS mode supported */ 494 | IEEE80211_C_MONITOR /* monitor mode supported */ 495 | IEEE80211_C_HOSTAP /* HostAp mode supported */ 496 | IEEE80211_C_AHDEMO /* adhoc demo mode */ 497 | IEEE80211_C_TXPMGT /* tx power management */ 498 | IEEE80211_C_SHPREAMBLE /* short preamble supported */ 499 | IEEE80211_C_SHSLOT /* short slot time supported */ 500 | IEEE80211_C_BGSCAN /* bg scanning supported */ 501 | IEEE80211_C_WPA /* 802.11i */ 502 ; 503 504 bands = 0; 505 setbit(&bands, IEEE80211_MODE_11B); 506 setbit(&bands, IEEE80211_MODE_11G); 507 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_5226) 508 setbit(&bands, IEEE80211_MODE_11A); 509 ieee80211_init_channels(ic, NULL, &bands); 510 511 ieee80211_ifattach(ic); 512 ic->ic_update_promisc = rum_update_promisc; 513 ic->ic_raw_xmit = rum_raw_xmit; 514 ic->ic_scan_start = rum_scan_start; 515 ic->ic_scan_end = rum_scan_end; 516 ic->ic_set_channel = rum_set_channel; 517 ic->ic_transmit = rum_transmit; 518 ic->ic_parent = rum_parent; 519 ic->ic_vap_create = rum_vap_create; 520 ic->ic_vap_delete = rum_vap_delete; 521 ic->ic_updateslot = rum_update_slot; 522 ic->ic_update_mcast = rum_update_mcast; 523 524 ieee80211_radiotap_attach(ic, 525 &sc->sc_txtap.wt_ihdr, sizeof(sc->sc_txtap), 526 RT2573_TX_RADIOTAP_PRESENT, 527 &sc->sc_rxtap.wr_ihdr, sizeof(sc->sc_rxtap), 528 RT2573_RX_RADIOTAP_PRESENT); 529 530 TASK_INIT(&sc->cmdq_task, 0, rum_cmdq_cb, sc); 531 532 if (bootverbose) 533 ieee80211_announce(ic); 534 535 return (0); 536 537detach: 538 rum_detach(self); 539 return (ENXIO); /* failure */ 540} 541 542static int 543rum_detach(device_t self) 544{ 545 struct rum_softc *sc = device_get_softc(self); 546 struct ieee80211com *ic = &sc->sc_ic; 547 548 /* Prevent further ioctls */ 549 RUM_LOCK(sc); 550 sc->sc_detached = 1; 551 RUM_UNLOCK(sc); 552 553 /* stop all USB transfers */ 554 usbd_transfer_unsetup(sc->sc_xfer, RUM_N_TRANSFER); 555 556 /* free TX list, if any */ 557 RUM_LOCK(sc); 558 rum_unsetup_tx_list(sc); 559 RUM_UNLOCK(sc); 560 561 if (ic->ic_softc == sc) { 562 ieee80211_draintask(ic, &sc->cmdq_task); 563 ieee80211_ifdetach(ic); 564 } 565 566 mbufq_drain(&sc->sc_snd); 567 RUM_CMDQ_LOCK_DESTROY(sc); 568 RUM_LOCK_DESTROY(sc); 569 570 return (0); 571} 572 573static usb_error_t 574rum_do_request(struct rum_softc *sc, 575 struct usb_device_request *req, void *data) 576{ 577 usb_error_t err; 578 int ntries = 10; 579 580 while (ntries--) { 581 err = usbd_do_request_flags(sc->sc_udev, &sc->sc_mtx, 582 req, data, 0, NULL, 250 /* ms */); 583 if (err == 0) 584 break; 585 586 DPRINTFN(1, "Control request failed, %s (retrying)\n", 587 usbd_errstr(err)); 588 if (rum_pause(sc, hz / 100)) 589 break; 590 } 591 return (err); 592} 593 594static struct ieee80211vap * 595rum_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ], int unit, 596 enum ieee80211_opmode opmode, int flags, 597 const uint8_t bssid[IEEE80211_ADDR_LEN], 598 const uint8_t mac[IEEE80211_ADDR_LEN]) 599{ 600 struct rum_softc *sc = ic->ic_softc; 601 struct rum_vap *rvp; 602 struct ieee80211vap *vap; 603 604 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 605 return NULL; 606 rvp = malloc(sizeof(struct rum_vap), M_80211_VAP, M_WAITOK | M_ZERO); 607 vap = &rvp->vap; 608 /* enable s/w bmiss handling for sta mode */ 609 610 if (ieee80211_vap_setup(ic, vap, name, unit, opmode, 611 flags | IEEE80211_CLONE_NOBEACONS, bssid) != 0) { 612 /* out of memory */ 613 free(rvp, M_80211_VAP); 614 return (NULL); 615 } 616 617 /* override state transition machine */ 618 rvp->newstate = vap->iv_newstate; 619 vap->iv_newstate = rum_newstate; 620 621 usb_callout_init_mtx(&rvp->ratectl_ch, &sc->sc_mtx, 0); 622 TASK_INIT(&rvp->ratectl_task, 0, rum_ratectl_task, rvp); 623 ieee80211_ratectl_init(vap); 624 ieee80211_ratectl_setinterval(vap, 1000 /* 1 sec */); 625 /* complete setup */ 626 ieee80211_vap_attach(vap, ieee80211_media_change, 627 ieee80211_media_status, mac); 628 ic->ic_opmode = opmode; 629 return vap; 630} 631 632static void 633rum_vap_delete(struct ieee80211vap *vap) 634{ 635 struct rum_vap *rvp = RUM_VAP(vap); 636 struct ieee80211com *ic = vap->iv_ic; 637 638 m_freem(rvp->bcn_mbuf); 639 usb_callout_drain(&rvp->ratectl_ch); 640 ieee80211_draintask(ic, &rvp->ratectl_task); 641 ieee80211_ratectl_deinit(vap); 642 ieee80211_vap_detach(vap); 643 free(rvp, M_80211_VAP); 644} 645 646static void 647rum_cmdq_cb(void *arg, int pending) 648{ 649 struct rum_softc *sc = arg; 650 struct rum_cmdq *rc; 651 652 RUM_CMDQ_LOCK(sc); 653 while (sc->cmdq[sc->cmdq_first].func != NULL) { 654 rc = &sc->cmdq[sc->cmdq_first]; 655 RUM_CMDQ_UNLOCK(sc); 656 657 RUM_LOCK(sc); 658 rc->func(sc, &rc->data, rc->rn_id, rc->rvp_id); 659 RUM_UNLOCK(sc); 660 661 RUM_CMDQ_LOCK(sc); 662 memset(rc, 0, sizeof (*rc)); 663 sc->cmdq_first = (sc->cmdq_first + 1) % RUM_CMDQ_SIZE; 664 } 665 RUM_CMDQ_UNLOCK(sc); 666} 667 668static int 669rum_cmd_sleepable(struct rum_softc *sc, const void *ptr, size_t len, 670 uint8_t rn_id, uint8_t rvp_id, CMD_FUNC_PROTO) 671{ 672 struct ieee80211com *ic = &sc->sc_ic; 673 674 KASSERT(len <= sizeof(union sec_param), ("buffer overflow")); 675 676 RUM_CMDQ_LOCK(sc); 677 if (sc->cmdq[sc->cmdq_last].func != NULL) { 678 device_printf(sc->sc_dev, "%s: cmdq overflow\n", __func__); 679 RUM_CMDQ_UNLOCK(sc); 680 681 return EAGAIN; 682 } 683 684 if (ptr != NULL) 685 memcpy(&sc->cmdq[sc->cmdq_last].data, ptr, len); 686 sc->cmdq[sc->cmdq_last].rn_id = rn_id; 687 sc->cmdq[sc->cmdq_last].rvp_id = rvp_id; 688 sc->cmdq[sc->cmdq_last].func = func; 689 sc->cmdq_last = (sc->cmdq_last + 1) % RUM_CMDQ_SIZE; 690 RUM_CMDQ_UNLOCK(sc); 691 692 ieee80211_runtask(ic, &sc->cmdq_task); 693 694 return 0; 695} 696 697static void 698rum_tx_free(struct rum_tx_data *data, int txerr) 699{ 700 struct rum_softc *sc = data->sc; 701 702 if (data->m != NULL) { 703 ieee80211_tx_complete(data->ni, data->m, txerr); 704 data->m = NULL; 705 data->ni = NULL; 706 } 707 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 708 sc->tx_nfree++; 709} 710 711static void 712rum_setup_tx_list(struct rum_softc *sc) 713{ 714 struct rum_tx_data *data; 715 int i; 716 717 sc->tx_nfree = 0; 718 STAILQ_INIT(&sc->tx_q); 719 STAILQ_INIT(&sc->tx_free); 720 721 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 722 data = &sc->tx_data[i]; 723 724 data->sc = sc; 725 STAILQ_INSERT_TAIL(&sc->tx_free, data, next); 726 sc->tx_nfree++; 727 } 728} 729 730static void 731rum_unsetup_tx_list(struct rum_softc *sc) 732{ 733 struct rum_tx_data *data; 734 int i; 735 736 /* make sure any subsequent use of the queues will fail */ 737 sc->tx_nfree = 0; 738 STAILQ_INIT(&sc->tx_q); 739 STAILQ_INIT(&sc->tx_free); 740 741 /* free up all node references and mbufs */ 742 for (i = 0; i < RUM_TX_LIST_COUNT; i++) { 743 data = &sc->tx_data[i]; 744 745 if (data->m != NULL) { 746 m_freem(data->m); 747 data->m = NULL; 748 } 749 if (data->ni != NULL) { 750 ieee80211_free_node(data->ni); 751 data->ni = NULL; 752 } 753 } 754} 755 756static int 757rum_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 758{ 759 struct rum_vap *rvp = RUM_VAP(vap); 760 struct ieee80211com *ic = vap->iv_ic; 761 struct rum_softc *sc = ic->ic_softc; 762 const struct ieee80211_txparam *tp; 763 enum ieee80211_state ostate; 764 struct ieee80211_node *ni; 765 int ret; 766 767 ostate = vap->iv_state; 768 DPRINTF("%s -> %s\n", 769 ieee80211_state_name[ostate], 770 ieee80211_state_name[nstate]); 771 772 IEEE80211_UNLOCK(ic); 773 RUM_LOCK(sc); 774 usb_callout_stop(&rvp->ratectl_ch); 775 776 switch (nstate) { 777 case IEEE80211_S_INIT: 778 if (ostate == IEEE80211_S_RUN) 779 rum_abort_tsf_sync(sc); 780 781 break; 782 783 case IEEE80211_S_RUN: 784 ni = ieee80211_ref_node(vap->iv_bss); 785 786 if (vap->iv_opmode != IEEE80211_M_MONITOR) { 787 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) { 788 ret = EINVAL; 789 goto run_fail; 790 } 791 rum_update_slot_cb(sc, NULL, 0, 0); 792 rum_enable_mrr(sc); 793 rum_set_txpreamble(sc); 794 rum_set_basicrates(sc); 795 IEEE80211_ADDR_COPY(sc->sc_bssid, ni->ni_bssid); 796 rum_set_bssid(sc, sc->sc_bssid); 797 } 798 799 if (vap->iv_opmode == IEEE80211_M_HOSTAP || 800 vap->iv_opmode == IEEE80211_M_IBSS) { 801 if ((ret = rum_alloc_beacon(sc, vap)) != 0) 802 goto run_fail; 803 } 804 805 if (vap->iv_opmode != IEEE80211_M_MONITOR && 806 vap->iv_opmode != IEEE80211_M_AHDEMO) { 807 if ((ret = rum_enable_tsf_sync(sc)) != 0) 808 goto run_fail; 809 } else 810 rum_enable_tsf(sc); 811 812 /* enable automatic rate adaptation */ 813 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 814 if (tp->ucastrate == IEEE80211_FIXED_RATE_NONE) 815 rum_ratectl_start(sc, ni); 816 ieee80211_free_node(ni); 817 break; 818 default: 819 break; 820 } 821 RUM_UNLOCK(sc); 822 IEEE80211_LOCK(ic); 823 return (rvp->newstate(vap, nstate, arg)); 824 825run_fail: 826 RUM_UNLOCK(sc); 827 IEEE80211_LOCK(ic); 828 ieee80211_free_node(ni); 829 return ret; 830} 831 832static void 833rum_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 834{ 835 struct rum_softc *sc = usbd_xfer_softc(xfer); 836 struct ieee80211vap *vap; 837 struct rum_tx_data *data; 838 struct mbuf *m; 839 struct usb_page_cache *pc; 840 unsigned int len; 841 int actlen, sumlen; 842 843 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 844 845 switch (USB_GET_STATE(xfer)) { 846 case USB_ST_TRANSFERRED: 847 DPRINTFN(11, "transfer complete, %d bytes\n", actlen); 848 849 /* free resources */ 850 data = usbd_xfer_get_priv(xfer); 851 rum_tx_free(data, 0); 852 usbd_xfer_set_priv(xfer, NULL); 853 854 /* FALLTHROUGH */ 855 case USB_ST_SETUP: 856tr_setup: 857 data = STAILQ_FIRST(&sc->tx_q); 858 if (data) { 859 STAILQ_REMOVE_HEAD(&sc->tx_q, next); 860 m = data->m; 861 862 if (m->m_pkthdr.len > (int)(MCLBYTES + RT2573_TX_DESC_SIZE)) { 863 DPRINTFN(0, "data overflow, %u bytes\n", 864 m->m_pkthdr.len); 865 m->m_pkthdr.len = (MCLBYTES + RT2573_TX_DESC_SIZE); 866 } 867 pc = usbd_xfer_get_frame(xfer, 0); 868 usbd_copy_in(pc, 0, &data->desc, RT2573_TX_DESC_SIZE); 869 usbd_m_copy_in(pc, RT2573_TX_DESC_SIZE, m, 0, 870 m->m_pkthdr.len); 871 872 vap = data->ni->ni_vap; 873 if (ieee80211_radiotap_active_vap(vap)) { 874 struct rum_tx_radiotap_header *tap = &sc->sc_txtap; 875 876 tap->wt_flags = 0; 877 tap->wt_rate = data->rate; 878 rum_get_tsf(sc, &tap->wt_tsf); 879 tap->wt_antenna = sc->tx_ant; 880 881 ieee80211_radiotap_tx(vap, m); 882 } 883 884 /* align end on a 4-bytes boundary */ 885 len = (RT2573_TX_DESC_SIZE + m->m_pkthdr.len + 3) & ~3; 886 if ((len % 64) == 0) 887 len += 4; 888 889 DPRINTFN(11, "sending frame len=%u xferlen=%u\n", 890 m->m_pkthdr.len, len); 891 892 usbd_xfer_set_frame_len(xfer, 0, len); 893 usbd_xfer_set_priv(xfer, data); 894 895 usbd_transfer_submit(xfer); 896 } 897 rum_start(sc); 898 break; 899 900 default: /* Error */ 901 DPRINTFN(11, "transfer error, %s\n", 902 usbd_errstr(error)); 903 904 counter_u64_add(sc->sc_ic.ic_oerrors, 1); 905 data = usbd_xfer_get_priv(xfer); 906 if (data != NULL) { 907 rum_tx_free(data, error); 908 usbd_xfer_set_priv(xfer, NULL); 909 } 910 911 if (error != USB_ERR_CANCELLED) { 912 if (error == USB_ERR_TIMEOUT) 913 device_printf(sc->sc_dev, "device timeout\n"); 914 915 /* 916 * Try to clear stall first, also if other 917 * errors occur, hence clearing stall 918 * introduces a 50 ms delay: 919 */ 920 usbd_xfer_set_stall(xfer); 921 goto tr_setup; 922 } 923 break; 924 } 925} 926 927static void 928rum_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 929{ 930 struct rum_softc *sc = usbd_xfer_softc(xfer); 931 struct ieee80211com *ic = &sc->sc_ic; 932 struct ieee80211_frame_min *wh; 933 struct ieee80211_node *ni; 934 struct mbuf *m = NULL; 935 struct usb_page_cache *pc; 936 uint32_t flags; 937 uint8_t rssi = 0; 938 int len; 939 940 usbd_xfer_status(xfer, &len, NULL, NULL, NULL); 941 942 switch (USB_GET_STATE(xfer)) { 943 case USB_ST_TRANSFERRED: 944 945 DPRINTFN(15, "rx done, actlen=%d\n", len); 946 947 if (len < (int)(RT2573_RX_DESC_SIZE + IEEE80211_MIN_LEN)) { 948 DPRINTF("%s: xfer too short %d\n", 949 device_get_nameunit(sc->sc_dev), len); 950 counter_u64_add(ic->ic_ierrors, 1); 951 goto tr_setup; 952 } 953 954 len -= RT2573_RX_DESC_SIZE; 955 pc = usbd_xfer_get_frame(xfer, 0); 956 usbd_copy_out(pc, 0, &sc->sc_rx_desc, RT2573_RX_DESC_SIZE); 957 958 rssi = rum_get_rssi(sc, sc->sc_rx_desc.rssi); 959 flags = le32toh(sc->sc_rx_desc.flags); 960 if (flags & RT2573_RX_CRC_ERROR) { 961 /* 962 * This should not happen since we did not 963 * request to receive those frames when we 964 * filled RUM_TXRX_CSR2: 965 */ 966 DPRINTFN(5, "PHY or CRC error\n"); 967 counter_u64_add(ic->ic_ierrors, 1); 968 goto tr_setup; 969 } 970 971 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 972 if (m == NULL) { 973 DPRINTF("could not allocate mbuf\n"); 974 counter_u64_add(ic->ic_ierrors, 1); 975 goto tr_setup; 976 } 977 usbd_copy_out(pc, RT2573_RX_DESC_SIZE, 978 mtod(m, uint8_t *), len); 979 980 wh = mtod(m, struct ieee80211_frame_min *); 981 982 /* finalize mbuf */ 983 m->m_pkthdr.len = m->m_len = (flags >> 16) & 0xfff; 984 985 if (ieee80211_radiotap_active(ic)) { 986 struct rum_rx_radiotap_header *tap = &sc->sc_rxtap; 987 988 tap->wr_flags = 0; 989 tap->wr_rate = ieee80211_plcp2rate(sc->sc_rx_desc.rate, 990 (flags & RT2573_RX_OFDM) ? 991 IEEE80211_T_OFDM : IEEE80211_T_CCK); 992 rum_get_tsf(sc, &tap->wr_tsf); 993 tap->wr_antsignal = RT2573_NOISE_FLOOR + rssi; 994 tap->wr_antnoise = RT2573_NOISE_FLOOR; 995 tap->wr_antenna = sc->rx_ant; 996 } 997 /* FALLTHROUGH */ 998 case USB_ST_SETUP: 999tr_setup: 1000 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 1001 usbd_transfer_submit(xfer); 1002 1003 /* 1004 * At the end of a USB callback it is always safe to unlock 1005 * the private mutex of a device! That is why we do the 1006 * "ieee80211_input" here, and not some lines up! 1007 */ 1008 RUM_UNLOCK(sc); 1009 if (m) { 1010 if (m->m_len >= sizeof(struct ieee80211_frame_min)) 1011 ni = ieee80211_find_rxnode(ic, wh); 1012 else 1013 ni = NULL; 1014 1015 if (ni != NULL) { 1016 (void) ieee80211_input(ni, m, rssi, 1017 RT2573_NOISE_FLOOR); 1018 ieee80211_free_node(ni); 1019 } else 1020 (void) ieee80211_input_all(ic, m, rssi, 1021 RT2573_NOISE_FLOOR); 1022 } 1023 RUM_LOCK(sc); 1024 rum_start(sc); 1025 return; 1026 1027 default: /* Error */ 1028 if (error != USB_ERR_CANCELLED) { 1029 /* try to clear stall first */ 1030 usbd_xfer_set_stall(xfer); 1031 goto tr_setup; 1032 } 1033 return; 1034 } 1035} 1036 1037static uint8_t 1038rum_plcp_signal(int rate) 1039{ 1040 switch (rate) { 1041 /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1042 case 12: return 0xb; 1043 case 18: return 0xf; 1044 case 24: return 0xa; 1045 case 36: return 0xe; 1046 case 48: return 0x9; 1047 case 72: return 0xd; 1048 case 96: return 0x8; 1049 case 108: return 0xc; 1050 1051 /* CCK rates (NB: not IEEE std, device-specific) */ 1052 case 2: return 0x0; 1053 case 4: return 0x1; 1054 case 11: return 0x2; 1055 case 22: return 0x3; 1056 } 1057 return 0xff; /* XXX unsupported/unknown rate */ 1058} 1059 1060static void 1061rum_setup_tx_desc(struct rum_softc *sc, struct rum_tx_desc *desc, 1062 uint32_t flags, uint16_t xflags, int len, int rate) 1063{ 1064 struct ieee80211com *ic = &sc->sc_ic; 1065 uint16_t plcp_length; 1066 int remainder; 1067 1068 desc->flags = htole32(flags); 1069 desc->flags |= htole32(RT2573_TX_VALID); 1070 desc->flags |= htole32(len << 16); 1071 1072 desc->xflags = htole16(xflags); 1073 1074 desc->wme = htole16(RT2573_QID(0) | RT2573_AIFSN(2) | 1075 RT2573_LOGCWMIN(4) | RT2573_LOGCWMAX(10)); 1076 1077 /* setup PLCP fields */ 1078 desc->plcp_signal = rum_plcp_signal(rate); 1079 desc->plcp_service = 4; 1080 1081 len += IEEE80211_CRC_LEN; 1082 if (ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) { 1083 desc->flags |= htole32(RT2573_TX_OFDM); 1084 1085 plcp_length = len & 0xfff; 1086 desc->plcp_length_hi = plcp_length >> 6; 1087 desc->plcp_length_lo = plcp_length & 0x3f; 1088 } else { 1089 if (rate == 0) 1090 rate = 2; /* avoid division by zero */ 1091 plcp_length = (16 * len + rate - 1) / rate; 1092 if (rate == 22) { 1093 remainder = (16 * len) % 22; 1094 if (remainder != 0 && remainder < 7) 1095 desc->plcp_service |= RT2573_PLCP_LENGEXT; 1096 } 1097 desc->plcp_length_hi = plcp_length >> 8; 1098 desc->plcp_length_lo = plcp_length & 0xff; 1099 1100 if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) 1101 desc->plcp_signal |= 0x08; 1102 } 1103} 1104 1105static int 1106rum_sendprot(struct rum_softc *sc, 1107 const struct mbuf *m, struct ieee80211_node *ni, int prot, int rate) 1108{ 1109 struct ieee80211com *ic = ni->ni_ic; 1110 const struct ieee80211_frame *wh; 1111 struct rum_tx_data *data; 1112 struct mbuf *mprot; 1113 int protrate, pktlen, flags, isshort; 1114 uint16_t dur; 1115 1116 RUM_LOCK_ASSERT(sc); 1117 KASSERT(prot == IEEE80211_PROT_RTSCTS || prot == IEEE80211_PROT_CTSONLY, 1118 ("protection %d", prot)); 1119 1120 wh = mtod(m, const struct ieee80211_frame *); 1121 pktlen = m->m_pkthdr.len + IEEE80211_CRC_LEN; 1122 1123 protrate = ieee80211_ctl_rate(ic->ic_rt, rate); 1124 1125 isshort = (ic->ic_flags & IEEE80211_F_SHPREAMBLE) != 0; 1126 dur = ieee80211_compute_duration(ic->ic_rt, pktlen, rate, isshort) 1127 + ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1128 flags = RT2573_TX_MORE_FRAG; 1129 if (prot == IEEE80211_PROT_RTSCTS) { 1130 /* NB: CTS is the same size as an ACK */ 1131 dur += ieee80211_ack_duration(ic->ic_rt, rate, isshort); 1132 flags |= RT2573_TX_NEED_ACK; 1133 mprot = ieee80211_alloc_rts(ic, wh->i_addr1, wh->i_addr2, dur); 1134 } else { 1135 mprot = ieee80211_alloc_cts(ic, ni->ni_vap->iv_myaddr, dur); 1136 } 1137 if (mprot == NULL) { 1138 /* XXX stat + msg */ 1139 return (ENOBUFS); 1140 } 1141 data = STAILQ_FIRST(&sc->tx_free); 1142 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1143 sc->tx_nfree--; 1144 1145 data->m = mprot; 1146 data->ni = ieee80211_ref_node(ni); 1147 data->rate = protrate; 1148 rum_setup_tx_desc(sc, &data->desc, flags, 0, mprot->m_pkthdr.len, protrate); 1149 1150 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1151 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1152 1153 return 0; 1154} 1155 1156static int 1157rum_tx_mgt(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1158{ 1159 struct ieee80211vap *vap = ni->ni_vap; 1160 struct ieee80211com *ic = &sc->sc_ic; 1161 struct rum_tx_data *data; 1162 struct ieee80211_frame *wh; 1163 const struct ieee80211_txparam *tp; 1164 struct ieee80211_key *k; 1165 uint32_t flags = 0; 1166 uint16_t dur; 1167 1168 RUM_LOCK_ASSERT(sc); 1169 1170 data = STAILQ_FIRST(&sc->tx_free); 1171 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1172 sc->tx_nfree--; 1173 1174 wh = mtod(m0, struct ieee80211_frame *); 1175 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1176 k = ieee80211_crypto_encap(ni, m0); 1177 if (k == NULL) 1178 return (ENOBUFS); 1179 1180 wh = mtod(m0, struct ieee80211_frame *); 1181 } 1182 1183 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 1184 1185 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1186 flags |= RT2573_TX_NEED_ACK; 1187 1188 dur = ieee80211_ack_duration(ic->ic_rt, tp->mgmtrate, 1189 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1190 USETW(wh->i_dur, dur); 1191 1192 /* tell hardware to add timestamp for probe responses */ 1193 if ((wh->i_fc[0] & 1194 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1195 (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1196 flags |= RT2573_TX_TIMESTAMP; 1197 } 1198 1199 data->m = m0; 1200 data->ni = ni; 1201 data->rate = tp->mgmtrate; 1202 1203 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, tp->mgmtrate); 1204 1205 DPRINTFN(10, "sending mgt frame len=%d rate=%d\n", 1206 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, tp->mgmtrate); 1207 1208 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1209 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1210 1211 return (0); 1212} 1213 1214static int 1215rum_tx_raw(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1216 const struct ieee80211_bpf_params *params) 1217{ 1218 struct ieee80211com *ic = ni->ni_ic; 1219 struct rum_tx_data *data; 1220 uint32_t flags; 1221 int rate, error; 1222 1223 RUM_LOCK_ASSERT(sc); 1224 1225 rate = params->ibp_rate0; 1226 if (!ieee80211_isratevalid(ic->ic_rt, rate)) 1227 return (EINVAL); 1228 1229 flags = 0; 1230 if ((params->ibp_flags & IEEE80211_BPF_NOACK) == 0) 1231 flags |= RT2573_TX_NEED_ACK; 1232 if (params->ibp_flags & (IEEE80211_BPF_RTS|IEEE80211_BPF_CTS)) { 1233 error = rum_sendprot(sc, m0, ni, 1234 params->ibp_flags & IEEE80211_BPF_RTS ? 1235 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_CTSONLY, 1236 rate); 1237 if (error || sc->tx_nfree == 0) 1238 return (ENOBUFS); 1239 1240 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1241 } 1242 1243 data = STAILQ_FIRST(&sc->tx_free); 1244 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1245 sc->tx_nfree--; 1246 1247 data->m = m0; 1248 data->ni = ni; 1249 data->rate = rate; 1250 1251 /* XXX need to setup descriptor ourself */ 1252 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1253 1254 DPRINTFN(10, "sending raw frame len=%u rate=%u\n", 1255 m0->m_pkthdr.len, rate); 1256 1257 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1258 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1259 1260 return 0; 1261} 1262 1263static int 1264rum_tx_data(struct rum_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) 1265{ 1266 struct ieee80211vap *vap = ni->ni_vap; 1267 struct ieee80211com *ic = &sc->sc_ic; 1268 struct rum_tx_data *data; 1269 struct ieee80211_frame *wh; 1270 const struct ieee80211_txparam *tp; 1271 struct ieee80211_key *k; 1272 uint32_t flags = 0; 1273 uint16_t dur; 1274 int error, rate; 1275 1276 RUM_LOCK_ASSERT(sc); 1277 1278 wh = mtod(m0, struct ieee80211_frame *); 1279 1280 tp = &vap->iv_txparms[ieee80211_chan2mode(ni->ni_chan)]; 1281 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 1282 rate = tp->mcastrate; 1283 else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) 1284 rate = tp->ucastrate; 1285 else 1286 rate = ni->ni_txrate; 1287 1288 if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { 1289 k = ieee80211_crypto_encap(ni, m0); 1290 if (k == NULL) { 1291 m_freem(m0); 1292 return ENOBUFS; 1293 } 1294 1295 /* packet header may have moved, reset our local pointer */ 1296 wh = mtod(m0, struct ieee80211_frame *); 1297 } 1298 1299 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1300 int prot = IEEE80211_PROT_NONE; 1301 if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > vap->iv_rtsthreshold) 1302 prot = IEEE80211_PROT_RTSCTS; 1303 else if ((ic->ic_flags & IEEE80211_F_USEPROT) && 1304 ieee80211_rate2phytype(ic->ic_rt, rate) == IEEE80211_T_OFDM) 1305 prot = ic->ic_protmode; 1306 if (prot != IEEE80211_PROT_NONE) { 1307 error = rum_sendprot(sc, m0, ni, prot, rate); 1308 if (error || sc->tx_nfree == 0) { 1309 m_freem(m0); 1310 return ENOBUFS; 1311 } 1312 flags |= RT2573_TX_LONG_RETRY | RT2573_TX_IFS_SIFS; 1313 } 1314 } 1315 1316 data = STAILQ_FIRST(&sc->tx_free); 1317 STAILQ_REMOVE_HEAD(&sc->tx_free, next); 1318 sc->tx_nfree--; 1319 1320 data->m = m0; 1321 data->ni = ni; 1322 data->rate = rate; 1323 1324 if (!IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1325 flags |= RT2573_TX_NEED_ACK; 1326 flags |= RT2573_TX_MORE_FRAG; 1327 1328 dur = ieee80211_ack_duration(ic->ic_rt, rate, 1329 ic->ic_flags & IEEE80211_F_SHPREAMBLE); 1330 USETW(wh->i_dur, dur); 1331 } 1332 1333 rum_setup_tx_desc(sc, &data->desc, flags, 0, m0->m_pkthdr.len, rate); 1334 1335 DPRINTFN(10, "sending frame len=%d rate=%d\n", 1336 m0->m_pkthdr.len + (int)RT2573_TX_DESC_SIZE, rate); 1337 1338 STAILQ_INSERT_TAIL(&sc->tx_q, data, next); 1339 usbd_transfer_start(sc->sc_xfer[RUM_BULK_WR]); 1340 1341 return 0; 1342} 1343 1344static int 1345rum_transmit(struct ieee80211com *ic, struct mbuf *m) 1346{ 1347 struct rum_softc *sc = ic->ic_softc; 1348 int error; 1349 1350 RUM_LOCK(sc); 1351 if (!sc->sc_running) { 1352 RUM_UNLOCK(sc); 1353 return (ENXIO); 1354 } 1355 error = mbufq_enqueue(&sc->sc_snd, m); 1356 if (error) { 1357 RUM_UNLOCK(sc); 1358 return (error); 1359 } 1360 rum_start(sc); 1361 RUM_UNLOCK(sc); 1362 1363 return (0); 1364} 1365 1366static void 1367rum_start(struct rum_softc *sc) 1368{ 1369 struct ieee80211_node *ni; 1370 struct mbuf *m; 1371 1372 RUM_LOCK_ASSERT(sc); 1373 1374 if (!sc->sc_running) 1375 return; 1376 1377 while (sc->tx_nfree >= RUM_TX_MINFREE && 1378 (m = mbufq_dequeue(&sc->sc_snd)) != NULL) { 1379 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1380 if (rum_tx_data(sc, m, ni) != 0) { 1381 if_inc_counter(ni->ni_vap->iv_ifp, 1382 IFCOUNTER_OERRORS, 1); 1383 ieee80211_free_node(ni); 1384 break; 1385 } 1386 } 1387} 1388 1389static void 1390rum_parent(struct ieee80211com *ic) 1391{ 1392 struct rum_softc *sc = ic->ic_softc; 1393 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1394 1395 RUM_LOCK(sc); 1396 if (sc->sc_detached) { 1397 RUM_UNLOCK(sc); 1398 return; 1399 } 1400 RUM_UNLOCK(sc); 1401 1402 if (ic->ic_nrunning > 0) { 1403 if (rum_init(sc) == 0) 1404 ieee80211_start_all(ic); 1405 else 1406 ieee80211_stop(vap); 1407 } else 1408 rum_stop(sc); 1409} 1410 1411static void 1412rum_eeprom_read(struct rum_softc *sc, uint16_t addr, void *buf, int len) 1413{ 1414 struct usb_device_request req; 1415 usb_error_t error; 1416 1417 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1418 req.bRequest = RT2573_READ_EEPROM; 1419 USETW(req.wValue, 0); 1420 USETW(req.wIndex, addr); 1421 USETW(req.wLength, len); 1422 1423 error = rum_do_request(sc, &req, buf); 1424 if (error != 0) { 1425 device_printf(sc->sc_dev, "could not read EEPROM: %s\n", 1426 usbd_errstr(error)); 1427 } 1428} 1429 1430static uint32_t 1431rum_read(struct rum_softc *sc, uint16_t reg) 1432{ 1433 uint32_t val; 1434 1435 rum_read_multi(sc, reg, &val, sizeof val); 1436 1437 return le32toh(val); 1438} 1439 1440static void 1441rum_read_multi(struct rum_softc *sc, uint16_t reg, void *buf, int len) 1442{ 1443 struct usb_device_request req; 1444 usb_error_t error; 1445 1446 req.bmRequestType = UT_READ_VENDOR_DEVICE; 1447 req.bRequest = RT2573_READ_MULTI_MAC; 1448 USETW(req.wValue, 0); 1449 USETW(req.wIndex, reg); 1450 USETW(req.wLength, len); 1451 1452 error = rum_do_request(sc, &req, buf); 1453 if (error != 0) { 1454 device_printf(sc->sc_dev, 1455 "could not multi read MAC register: %s\n", 1456 usbd_errstr(error)); 1457 } 1458} 1459 1460static usb_error_t 1461rum_write(struct rum_softc *sc, uint16_t reg, uint32_t val) 1462{ 1463 uint32_t tmp = htole32(val); 1464 1465 return (rum_write_multi(sc, reg, &tmp, sizeof tmp)); 1466} 1467 1468static usb_error_t 1469rum_write_multi(struct rum_softc *sc, uint16_t reg, void *buf, size_t len) 1470{ 1471 struct usb_device_request req; 1472 usb_error_t error; 1473 size_t offset; 1474 1475 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 1476 req.bRequest = RT2573_WRITE_MULTI_MAC; 1477 USETW(req.wValue, 0); 1478 1479 /* write at most 64 bytes at a time */ 1480 for (offset = 0; offset < len; offset += 64) { 1481 USETW(req.wIndex, reg + offset); 1482 USETW(req.wLength, MIN(len - offset, 64)); 1483 1484 error = rum_do_request(sc, &req, (char *)buf + offset); 1485 if (error != 0) { 1486 device_printf(sc->sc_dev, 1487 "could not multi write MAC register: %s\n", 1488 usbd_errstr(error)); 1489 return (error); 1490 } 1491 } 1492 1493 return (USB_ERR_NORMAL_COMPLETION); 1494} 1495 1496static usb_error_t 1497rum_setbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1498{ 1499 return (rum_write(sc, reg, rum_read(sc, reg) | mask)); 1500} 1501 1502static usb_error_t 1503rum_clrbits(struct rum_softc *sc, uint16_t reg, uint32_t mask) 1504{ 1505 return (rum_write(sc, reg, rum_read(sc, reg) & ~mask)); 1506} 1507 1508static usb_error_t 1509rum_modbits(struct rum_softc *sc, uint16_t reg, uint32_t set, uint32_t unset) 1510{ 1511 return (rum_write(sc, reg, (rum_read(sc, reg) & ~unset) | set)); 1512} 1513 1514static int 1515rum_bbp_busy(struct rum_softc *sc) 1516{ 1517 int ntries; 1518 1519 for (ntries = 0; ntries < 100; ntries++) { 1520 if (!(rum_read(sc, RT2573_PHY_CSR3) & RT2573_BBP_BUSY)) 1521 break; 1522 if (rum_pause(sc, hz / 100)) 1523 break; 1524 } 1525 if (ntries == 100) 1526 return (ETIMEDOUT); 1527 1528 return (0); 1529} 1530 1531static void 1532rum_bbp_write(struct rum_softc *sc, uint8_t reg, uint8_t val) 1533{ 1534 uint32_t tmp; 1535 1536 DPRINTFN(2, "reg=0x%08x\n", reg); 1537 1538 if (rum_bbp_busy(sc) != 0) { 1539 device_printf(sc->sc_dev, "could not write to BBP\n"); 1540 return; 1541 } 1542 1543 tmp = RT2573_BBP_BUSY | (reg & 0x7f) << 8 | val; 1544 rum_write(sc, RT2573_PHY_CSR3, tmp); 1545} 1546 1547static uint8_t 1548rum_bbp_read(struct rum_softc *sc, uint8_t reg) 1549{ 1550 uint32_t val; 1551 int ntries; 1552 1553 DPRINTFN(2, "reg=0x%08x\n", reg); 1554 1555 if (rum_bbp_busy(sc) != 0) { 1556 device_printf(sc->sc_dev, "could not read BBP\n"); 1557 return 0; 1558 } 1559 1560 val = RT2573_BBP_BUSY | RT2573_BBP_READ | reg << 8; 1561 rum_write(sc, RT2573_PHY_CSR3, val); 1562 1563 for (ntries = 0; ntries < 100; ntries++) { 1564 val = rum_read(sc, RT2573_PHY_CSR3); 1565 if (!(val & RT2573_BBP_BUSY)) 1566 return val & 0xff; 1567 if (rum_pause(sc, hz / 100)) 1568 break; 1569 } 1570 1571 device_printf(sc->sc_dev, "could not read BBP\n"); 1572 return 0; 1573} 1574 1575static void 1576rum_rf_write(struct rum_softc *sc, uint8_t reg, uint32_t val) 1577{ 1578 uint32_t tmp; 1579 int ntries; 1580 1581 for (ntries = 0; ntries < 100; ntries++) { 1582 if (!(rum_read(sc, RT2573_PHY_CSR4) & RT2573_RF_BUSY)) 1583 break; 1584 if (rum_pause(sc, hz / 100)) 1585 break; 1586 } 1587 if (ntries == 100) { 1588 device_printf(sc->sc_dev, "could not write to RF\n"); 1589 return; 1590 } 1591 1592 tmp = RT2573_RF_BUSY | RT2573_RF_20BIT | (val & 0xfffff) << 2 | 1593 (reg & 3); 1594 rum_write(sc, RT2573_PHY_CSR4, tmp); 1595 1596 /* remember last written value in sc */ 1597 sc->rf_regs[reg] = val; 1598 1599 DPRINTFN(15, "RF R[%u] <- 0x%05x\n", reg & 3, val & 0xfffff); 1600} 1601 1602static void 1603rum_select_antenna(struct rum_softc *sc) 1604{ 1605 uint8_t bbp4, bbp77; 1606 uint32_t tmp; 1607 1608 bbp4 = rum_bbp_read(sc, 4); 1609 bbp77 = rum_bbp_read(sc, 77); 1610 1611 /* TBD */ 1612 1613 /* make sure Rx is disabled before switching antenna */ 1614 tmp = rum_read(sc, RT2573_TXRX_CSR0); 1615 rum_write(sc, RT2573_TXRX_CSR0, tmp | RT2573_DISABLE_RX); 1616 1617 rum_bbp_write(sc, 4, bbp4); 1618 rum_bbp_write(sc, 77, bbp77); 1619 1620 rum_write(sc, RT2573_TXRX_CSR0, tmp); 1621} 1622 1623/* 1624 * Enable multi-rate retries for frames sent at OFDM rates. 1625 * In 802.11b/g mode, allow fallback to CCK rates. 1626 */ 1627static void 1628rum_enable_mrr(struct rum_softc *sc) 1629{ 1630 struct ieee80211com *ic = &sc->sc_ic; 1631 1632 if (!IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1633 rum_setbits(sc, RT2573_TXRX_CSR4, 1634 RT2573_MRR_ENABLED | RT2573_MRR_CCK_FALLBACK); 1635 } else { 1636 rum_modbits(sc, RT2573_TXRX_CSR4, 1637 RT2573_MRR_ENABLED, RT2573_MRR_CCK_FALLBACK); 1638 } 1639} 1640 1641static void 1642rum_set_txpreamble(struct rum_softc *sc) 1643{ 1644 struct ieee80211com *ic = &sc->sc_ic; 1645 1646 if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1647 rum_setbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1648 else 1649 rum_clrbits(sc, RT2573_TXRX_CSR4, RT2573_SHORT_PREAMBLE); 1650} 1651 1652static void 1653rum_set_basicrates(struct rum_softc *sc) 1654{ 1655 struct ieee80211com *ic = &sc->sc_ic; 1656 1657 /* update basic rate set */ 1658 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1659 /* 11b basic rates: 1, 2Mbps */ 1660 rum_write(sc, RT2573_TXRX_CSR5, 0x3); 1661 } else if (IEEE80211_IS_CHAN_5GHZ(ic->ic_bsschan)) { 1662 /* 11a basic rates: 6, 12, 24Mbps */ 1663 rum_write(sc, RT2573_TXRX_CSR5, 0x150); 1664 } else { 1665 /* 11b/g basic rates: 1, 2, 5.5, 11Mbps */ 1666 rum_write(sc, RT2573_TXRX_CSR5, 0xf); 1667 } 1668} 1669 1670/* 1671 * Reprogram MAC/BBP to switch to a new band. Values taken from the reference 1672 * driver. 1673 */ 1674static void 1675rum_select_band(struct rum_softc *sc, struct ieee80211_channel *c) 1676{ 1677 uint8_t bbp17, bbp35, bbp96, bbp97, bbp98, bbp104; 1678 1679 /* update all BBP registers that depend on the band */ 1680 bbp17 = 0x20; bbp96 = 0x48; bbp104 = 0x2c; 1681 bbp35 = 0x50; bbp97 = 0x48; bbp98 = 0x48; 1682 if (IEEE80211_IS_CHAN_5GHZ(c)) { 1683 bbp17 += 0x08; bbp96 += 0x10; bbp104 += 0x0c; 1684 bbp35 += 0x10; bbp97 += 0x10; bbp98 += 0x10; 1685 } 1686 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1687 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1688 bbp17 += 0x10; bbp96 += 0x10; bbp104 += 0x10; 1689 } 1690 1691 sc->bbp17 = bbp17; 1692 rum_bbp_write(sc, 17, bbp17); 1693 rum_bbp_write(sc, 96, bbp96); 1694 rum_bbp_write(sc, 104, bbp104); 1695 1696 if ((IEEE80211_IS_CHAN_2GHZ(c) && sc->ext_2ghz_lna) || 1697 (IEEE80211_IS_CHAN_5GHZ(c) && sc->ext_5ghz_lna)) { 1698 rum_bbp_write(sc, 75, 0x80); 1699 rum_bbp_write(sc, 86, 0x80); 1700 rum_bbp_write(sc, 88, 0x80); 1701 } 1702 1703 rum_bbp_write(sc, 35, bbp35); 1704 rum_bbp_write(sc, 97, bbp97); 1705 rum_bbp_write(sc, 98, bbp98); 1706 1707 if (IEEE80211_IS_CHAN_2GHZ(c)) { 1708 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_2GHZ, 1709 RT2573_PA_PE_5GHZ); 1710 } else { 1711 rum_modbits(sc, RT2573_PHY_CSR0, RT2573_PA_PE_5GHZ, 1712 RT2573_PA_PE_2GHZ); 1713 } 1714} 1715 1716static void 1717rum_set_chan(struct rum_softc *sc, struct ieee80211_channel *c) 1718{ 1719 struct ieee80211com *ic = &sc->sc_ic; 1720 const struct rfprog *rfprog; 1721 uint8_t bbp3, bbp94 = RT2573_BBPR94_DEFAULT; 1722 int8_t power; 1723 int i, chan; 1724 1725 chan = ieee80211_chan2ieee(ic, c); 1726 if (chan == 0 || chan == IEEE80211_CHAN_ANY) 1727 return; 1728 1729 /* select the appropriate RF settings based on what EEPROM says */ 1730 rfprog = (sc->rf_rev == RT2573_RF_5225 || 1731 sc->rf_rev == RT2573_RF_2527) ? rum_rf5225 : rum_rf5226; 1732 1733 /* find the settings for this channel (we know it exists) */ 1734 for (i = 0; rfprog[i].chan != chan; i++); 1735 1736 power = sc->txpow[i]; 1737 if (power < 0) { 1738 bbp94 += power; 1739 power = 0; 1740 } else if (power > 31) { 1741 bbp94 += power - 31; 1742 power = 31; 1743 } 1744 1745 /* 1746 * If we are switching from the 2GHz band to the 5GHz band or 1747 * vice-versa, BBP registers need to be reprogrammed. 1748 */ 1749 if (c->ic_flags != ic->ic_curchan->ic_flags) { 1750 rum_select_band(sc, c); 1751 rum_select_antenna(sc); 1752 } 1753 ic->ic_curchan = c; 1754 1755 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1756 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1757 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1758 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1759 1760 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1761 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1762 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7 | 1); 1763 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1764 1765 rum_rf_write(sc, RT2573_RF1, rfprog[i].r1); 1766 rum_rf_write(sc, RT2573_RF2, rfprog[i].r2); 1767 rum_rf_write(sc, RT2573_RF3, rfprog[i].r3 | power << 7); 1768 rum_rf_write(sc, RT2573_RF4, rfprog[i].r4 | sc->rffreq << 10); 1769 1770 rum_pause(sc, hz / 100); 1771 1772 /* enable smart mode for MIMO-capable RFs */ 1773 bbp3 = rum_bbp_read(sc, 3); 1774 1775 bbp3 &= ~RT2573_SMART_MODE; 1776 if (sc->rf_rev == RT2573_RF_5225 || sc->rf_rev == RT2573_RF_2527) 1777 bbp3 |= RT2573_SMART_MODE; 1778 1779 rum_bbp_write(sc, 3, bbp3); 1780 1781 if (bbp94 != RT2573_BBPR94_DEFAULT) 1782 rum_bbp_write(sc, 94, bbp94); 1783 1784 /* give the chip some extra time to do the switchover */ 1785 rum_pause(sc, hz / 100); 1786} 1787 1788/* 1789 * Enable TSF synchronization and tell h/w to start sending beacons for IBSS 1790 * and HostAP operating modes. 1791 */ 1792static int 1793rum_enable_tsf_sync(struct rum_softc *sc) 1794{ 1795 struct ieee80211com *ic = &sc->sc_ic; 1796 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 1797 uint32_t tmp; 1798 1799 if (vap->iv_opmode != IEEE80211_M_STA) { 1800 /* 1801 * Change default 16ms TBTT adjustment to 8ms. 1802 * Must be done before enabling beacon generation. 1803 */ 1804 if (rum_write(sc, RT2573_TXRX_CSR10, 1 << 12 | 8) != 0) 1805 return EIO; 1806 } 1807 1808 tmp = rum_read(sc, RT2573_TXRX_CSR9) & 0xff000000; 1809 1810 /* set beacon interval (in 1/16ms unit) */ 1811 tmp |= vap->iv_bss->ni_intval * 16; 1812 tmp |= RT2573_TSF_TIMER_EN | RT2573_TBTT_TIMER_EN; 1813 1814 switch (vap->iv_opmode) { 1815 case IEEE80211_M_STA: 1816 /* 1817 * Local TSF is always updated with remote TSF on beacon 1818 * reception. 1819 */ 1820 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_STA); 1821 break; 1822 case IEEE80211_M_IBSS: 1823 /* 1824 * Local TSF is updated with remote TSF on beacon reception 1825 * only if the remote TSF is greater than local TSF. 1826 */ 1827 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_IBSS); 1828 tmp |= RT2573_BCN_TX_EN; 1829 break; 1830 case IEEE80211_M_HOSTAP: 1831 /* SYNC with nobody */ 1832 tmp |= RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_HOSTAP); 1833 tmp |= RT2573_BCN_TX_EN; 1834 break; 1835 default: 1836 device_printf(sc->sc_dev, 1837 "Enabling TSF failed. undefined opmode %d\n", 1838 vap->iv_opmode); 1839 return EINVAL; 1840 } 1841 1842 if (rum_write(sc, RT2573_TXRX_CSR9, tmp) != 0) 1843 return EIO; 1844 1845 return 0; 1846} 1847 1848static void 1849rum_enable_tsf(struct rum_softc *sc) 1850{ 1851 rum_modbits(sc, RT2573_TXRX_CSR9, RT2573_TSF_TIMER_EN | 1852 RT2573_TSF_SYNC_MODE(RT2573_TSF_SYNC_MODE_DIS), 0x00ffffff); 1853} 1854 1855static void 1856rum_abort_tsf_sync(struct rum_softc *sc) 1857{ 1858 rum_clrbits(sc, RT2573_TXRX_CSR9, 0x00ffffff); 1859} 1860 1861static void 1862rum_get_tsf(struct rum_softc *sc, uint64_t *buf) 1863{ 1864 rum_read_multi(sc, RT2573_TXRX_CSR12, buf, sizeof (*buf)); 1865} 1866 1867static void 1868rum_update_slot_cb(struct rum_softc *sc, union sec_param *data, uint8_t rv_id, 1869 uint8_t rvp_id) 1870{ 1871 struct ieee80211com *ic = &sc->sc_ic; 1872 uint8_t slottime; 1873 1874 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1875 1876 rum_modbits(sc, RT2573_MAC_CSR9, slottime, 0xff); 1877 1878 DPRINTF("setting slot time to %uus\n", slottime); 1879} 1880 1881static void 1882rum_update_slot(struct ieee80211com *ic) 1883{ 1884 rum_cmd_sleepable(ic->ic_softc, NULL, 0, 0, 0, rum_update_slot_cb); 1885} 1886 1887static void 1888rum_set_bssid(struct rum_softc *sc, const uint8_t *bssid) 1889{ 1890 1891 rum_write(sc, RT2573_MAC_CSR4, 1892 bssid[0] | bssid[1] << 8 | bssid[2] << 16 | bssid[3] << 24); 1893 rum_write(sc, RT2573_MAC_CSR5, 1894 bssid[4] | bssid[5] << 8 | RT2573_NUM_BSSID_MSK(1)); 1895} 1896 1897static void 1898rum_set_macaddr(struct rum_softc *sc, const uint8_t *addr) 1899{ 1900 1901 rum_write(sc, RT2573_MAC_CSR2, 1902 addr[0] | addr[1] << 8 | addr[2] << 16 | addr[3] << 24); 1903 rum_write(sc, RT2573_MAC_CSR3, 1904 addr[4] | addr[5] << 8 | 0xff << 16); 1905} 1906 1907static void 1908rum_setpromisc(struct rum_softc *sc) 1909{ 1910 struct ieee80211com *ic = &sc->sc_ic; 1911 1912 if (ic->ic_promisc == 0) 1913 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1914 else 1915 rum_clrbits(sc, RT2573_TXRX_CSR0, RT2573_DROP_NOT_TO_ME); 1916 1917 DPRINTF("%s promiscuous mode\n", ic->ic_promisc > 0 ? 1918 "entering" : "leaving"); 1919} 1920 1921static void 1922rum_update_promisc(struct ieee80211com *ic) 1923{ 1924 struct rum_softc *sc = ic->ic_softc; 1925 1926 RUM_LOCK(sc); 1927 if (sc->sc_running) 1928 rum_setpromisc(sc); 1929 RUM_UNLOCK(sc); 1930} 1931 1932static void 1933rum_update_mcast(struct ieee80211com *ic) 1934{ 1935 /* Ignore. */ 1936} 1937 1938static const char * 1939rum_get_rf(int rev) 1940{ 1941 switch (rev) { 1942 case RT2573_RF_2527: return "RT2527 (MIMO XR)"; 1943 case RT2573_RF_2528: return "RT2528"; 1944 case RT2573_RF_5225: return "RT5225 (MIMO XR)"; 1945 case RT2573_RF_5226: return "RT5226"; 1946 default: return "unknown"; 1947 } 1948} 1949 1950static void 1951rum_read_eeprom(struct rum_softc *sc) 1952{ 1953 uint16_t val; 1954#ifdef RUM_DEBUG 1955 int i; 1956#endif 1957 1958 /* read MAC address */ 1959 rum_eeprom_read(sc, RT2573_EEPROM_ADDRESS, sc->sc_ic.ic_macaddr, 6); 1960 1961 rum_eeprom_read(sc, RT2573_EEPROM_ANTENNA, &val, 2); 1962 val = le16toh(val); 1963 sc->rf_rev = (val >> 11) & 0x1f; 1964 sc->hw_radio = (val >> 10) & 0x1; 1965 sc->rx_ant = (val >> 4) & 0x3; 1966 sc->tx_ant = (val >> 2) & 0x3; 1967 sc->nb_ant = val & 0x3; 1968 1969 DPRINTF("RF revision=%d\n", sc->rf_rev); 1970 1971 rum_eeprom_read(sc, RT2573_EEPROM_CONFIG2, &val, 2); 1972 val = le16toh(val); 1973 sc->ext_5ghz_lna = (val >> 6) & 0x1; 1974 sc->ext_2ghz_lna = (val >> 4) & 0x1; 1975 1976 DPRINTF("External 2GHz LNA=%d\nExternal 5GHz LNA=%d\n", 1977 sc->ext_2ghz_lna, sc->ext_5ghz_lna); 1978 1979 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_2GHZ_OFFSET, &val, 2); 1980 val = le16toh(val); 1981 if ((val & 0xff) != 0xff) 1982 sc->rssi_2ghz_corr = (int8_t)(val & 0xff); /* signed */ 1983 1984 /* Only [-10, 10] is valid */ 1985 if (sc->rssi_2ghz_corr < -10 || sc->rssi_2ghz_corr > 10) 1986 sc->rssi_2ghz_corr = 0; 1987 1988 rum_eeprom_read(sc, RT2573_EEPROM_RSSI_5GHZ_OFFSET, &val, 2); 1989 val = le16toh(val); 1990 if ((val & 0xff) != 0xff) 1991 sc->rssi_5ghz_corr = (int8_t)(val & 0xff); /* signed */ 1992 1993 /* Only [-10, 10] is valid */ 1994 if (sc->rssi_5ghz_corr < -10 || sc->rssi_5ghz_corr > 10) 1995 sc->rssi_5ghz_corr = 0; 1996 1997 if (sc->ext_2ghz_lna) 1998 sc->rssi_2ghz_corr -= 14; 1999 if (sc->ext_5ghz_lna) 2000 sc->rssi_5ghz_corr -= 14; 2001 2002 DPRINTF("RSSI 2GHz corr=%d\nRSSI 5GHz corr=%d\n", 2003 sc->rssi_2ghz_corr, sc->rssi_5ghz_corr); 2004 2005 rum_eeprom_read(sc, RT2573_EEPROM_FREQ_OFFSET, &val, 2); 2006 val = le16toh(val); 2007 if ((val & 0xff) != 0xff) 2008 sc->rffreq = val & 0xff; 2009 2010 DPRINTF("RF freq=%d\n", sc->rffreq); 2011 2012 /* read Tx power for all a/b/g channels */ 2013 rum_eeprom_read(sc, RT2573_EEPROM_TXPOWER, sc->txpow, 14); 2014 /* XXX default Tx power for 802.11a channels */ 2015 memset(sc->txpow + 14, 24, sizeof (sc->txpow) - 14); 2016#ifdef RUM_DEBUG 2017 for (i = 0; i < 14; i++) 2018 DPRINTF("Channel=%d Tx power=%d\n", i + 1, sc->txpow[i]); 2019#endif 2020 2021 /* read default values for BBP registers */ 2022 rum_eeprom_read(sc, RT2573_EEPROM_BBP_BASE, sc->bbp_prom, 2 * 16); 2023#ifdef RUM_DEBUG 2024 for (i = 0; i < 14; i++) { 2025 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2026 continue; 2027 DPRINTF("BBP R%d=%02x\n", sc->bbp_prom[i].reg, 2028 sc->bbp_prom[i].val); 2029 } 2030#endif 2031} 2032 2033static int 2034rum_bbp_wakeup(struct rum_softc *sc) 2035{ 2036 unsigned int ntries; 2037 2038 for (ntries = 0; ntries < 100; ntries++) { 2039 if (rum_read(sc, RT2573_MAC_CSR12) & 8) 2040 break; 2041 rum_write(sc, RT2573_MAC_CSR12, 4); /* force wakeup */ 2042 if (rum_pause(sc, hz / 100)) 2043 break; 2044 } 2045 if (ntries == 100) { 2046 device_printf(sc->sc_dev, 2047 "timeout waiting for BBP/RF to wakeup\n"); 2048 return (ETIMEDOUT); 2049 } 2050 2051 return (0); 2052} 2053 2054static int 2055rum_bbp_init(struct rum_softc *sc) 2056{ 2057 int i, ntries; 2058 2059 /* wait for BBP to be ready */ 2060 for (ntries = 0; ntries < 100; ntries++) { 2061 const uint8_t val = rum_bbp_read(sc, 0); 2062 if (val != 0 && val != 0xff) 2063 break; 2064 if (rum_pause(sc, hz / 100)) 2065 break; 2066 } 2067 if (ntries == 100) { 2068 device_printf(sc->sc_dev, "timeout waiting for BBP\n"); 2069 return EIO; 2070 } 2071 2072 /* initialize BBP registers to default values */ 2073 for (i = 0; i < nitems(rum_def_bbp); i++) 2074 rum_bbp_write(sc, rum_def_bbp[i].reg, rum_def_bbp[i].val); 2075 2076 /* write vendor-specific BBP values (from EEPROM) */ 2077 for (i = 0; i < 16; i++) { 2078 if (sc->bbp_prom[i].reg == 0 || sc->bbp_prom[i].reg == 0xff) 2079 continue; 2080 rum_bbp_write(sc, sc->bbp_prom[i].reg, sc->bbp_prom[i].val); 2081 } 2082 2083 return 0; 2084} 2085 2086static int 2087rum_init(struct rum_softc *sc) 2088{ 2089 struct ieee80211com *ic = &sc->sc_ic; 2090 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); 2091 uint32_t tmp; 2092 int i, ret; 2093 2094 RUM_LOCK(sc); 2095 if (sc->sc_running) { 2096 ret = 0; 2097 goto end; 2098 } 2099 2100 /* initialize MAC registers to default values */ 2101 for (i = 0; i < nitems(rum_def_mac); i++) 2102 rum_write(sc, rum_def_mac[i].reg, rum_def_mac[i].val); 2103 2104 /* set host ready */ 2105 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2106 rum_write(sc, RT2573_MAC_CSR1, 0); 2107 2108 /* wait for BBP/RF to wakeup */ 2109 if ((ret = rum_bbp_wakeup(sc)) != 0) 2110 goto end; 2111 2112 if ((ret = rum_bbp_init(sc)) != 0) 2113 goto end; 2114 2115 /* select default channel */ 2116 rum_select_band(sc, ic->ic_curchan); 2117 rum_select_antenna(sc); 2118 rum_set_chan(sc, ic->ic_curchan); 2119 2120 /* clear STA registers */ 2121 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2122 2123 rum_set_macaddr(sc, vap ? vap->iv_myaddr : ic->ic_macaddr); 2124 2125 /* initialize ASIC */ 2126 rum_write(sc, RT2573_MAC_CSR1, RT2573_HOST_READY); 2127 2128 /* 2129 * Allocate Tx and Rx xfer queues. 2130 */ 2131 rum_setup_tx_list(sc); 2132 2133 /* update Rx filter */ 2134 tmp = rum_read(sc, RT2573_TXRX_CSR0) & 0xffff; 2135 2136 tmp |= RT2573_DROP_PHY_ERROR | RT2573_DROP_CRC_ERROR; 2137 if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2138 tmp |= RT2573_DROP_CTL | RT2573_DROP_VER_ERROR | 2139 RT2573_DROP_ACKCTS; 2140 if (ic->ic_opmode != IEEE80211_M_HOSTAP) 2141 tmp |= RT2573_DROP_TODS; 2142 if (ic->ic_promisc == 0) 2143 tmp |= RT2573_DROP_NOT_TO_ME; 2144 } 2145 rum_write(sc, RT2573_TXRX_CSR0, tmp); 2146 2147 sc->sc_running = 1; 2148 usbd_xfer_set_stall(sc->sc_xfer[RUM_BULK_WR]); 2149 usbd_transfer_start(sc->sc_xfer[RUM_BULK_RD]); 2150 2151end: RUM_UNLOCK(sc); 2152 2153 if (ret != 0) 2154 rum_stop(sc); 2155 2156 return ret; 2157} 2158 2159static void 2160rum_stop(struct rum_softc *sc) 2161{ 2162 2163 RUM_LOCK(sc); 2164 if (!sc->sc_running) { 2165 RUM_UNLOCK(sc); 2166 return; 2167 } 2168 sc->sc_running = 0; 2169 RUM_UNLOCK(sc); 2170 2171 /* 2172 * Drain the USB transfers, if not already drained: 2173 */ 2174 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_WR]); 2175 usbd_transfer_drain(sc->sc_xfer[RUM_BULK_RD]); 2176 2177 RUM_LOCK(sc); 2178 rum_unsetup_tx_list(sc); 2179 2180 /* disable Rx */ 2181 rum_setbits(sc, RT2573_TXRX_CSR0, RT2573_DISABLE_RX); 2182 2183 /* reset ASIC */ 2184 rum_write(sc, RT2573_MAC_CSR1, RT2573_RESET_ASIC | RT2573_RESET_BBP); 2185 rum_write(sc, RT2573_MAC_CSR1, 0); 2186 RUM_UNLOCK(sc); 2187} 2188 2189static void 2190rum_load_microcode(struct rum_softc *sc, const uint8_t *ucode, size_t size) 2191{ 2192 struct usb_device_request req; 2193 uint16_t reg = RT2573_MCU_CODE_BASE; 2194 usb_error_t err; 2195 2196 /* copy firmware image into NIC */ 2197 for (; size >= 4; reg += 4, ucode += 4, size -= 4) { 2198 err = rum_write(sc, reg, UGETDW(ucode)); 2199 if (err) { 2200 /* firmware already loaded ? */ 2201 device_printf(sc->sc_dev, "Firmware load " 2202 "failure! (ignored)\n"); 2203 break; 2204 } 2205 } 2206 2207 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 2208 req.bRequest = RT2573_MCU_CNTL; 2209 USETW(req.wValue, RT2573_MCU_RUN); 2210 USETW(req.wIndex, 0); 2211 USETW(req.wLength, 0); 2212 2213 err = rum_do_request(sc, &req, NULL); 2214 if (err != 0) { 2215 device_printf(sc->sc_dev, "could not run firmware: %s\n", 2216 usbd_errstr(err)); 2217 } 2218 2219 /* give the chip some time to boot */ 2220 rum_pause(sc, hz / 8); 2221} 2222 2223static int 2224rum_set_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2225{ 2226 struct ieee80211com *ic = vap->iv_ic; 2227 struct rum_vap *rvp = RUM_VAP(vap); 2228 struct mbuf *m = rvp->bcn_mbuf; 2229 const struct ieee80211_txparam *tp; 2230 struct rum_tx_desc desc; 2231 2232 RUM_LOCK_ASSERT(sc); 2233 2234 if (m == NULL) 2235 return EINVAL; 2236 if (ic->ic_bsschan == IEEE80211_CHAN_ANYC) 2237 return EINVAL; 2238 2239 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_bsschan)]; 2240 rum_setup_tx_desc(sc, &desc, RT2573_TX_TIMESTAMP, RT2573_TX_HWSEQ, 2241 m->m_pkthdr.len, tp->mgmtrate); 2242 2243 /* copy the Tx descriptor into NIC memory */ 2244 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0), (uint8_t *)&desc, 2245 RT2573_TX_DESC_SIZE) != 0) 2246 return EIO; 2247 2248 /* copy beacon header and payload into NIC memory */ 2249 if (rum_write_multi(sc, RT2573_HW_BCN_BASE(0) + RT2573_TX_DESC_SIZE, 2250 mtod(m, uint8_t *), m->m_pkthdr.len) != 0) 2251 return EIO; 2252 2253 return 0; 2254} 2255 2256static int 2257rum_alloc_beacon(struct rum_softc *sc, struct ieee80211vap *vap) 2258{ 2259 struct rum_vap *rvp = RUM_VAP(vap); 2260 struct ieee80211_node *ni = vap->iv_bss; 2261 struct mbuf *m; 2262 2263 if (ni->ni_chan == IEEE80211_CHAN_ANYC) 2264 return EINVAL; 2265 2266 m = ieee80211_beacon_alloc(ni, &vap->iv_bcn_off); 2267 if (m == NULL) 2268 return ENOMEM; 2269 2270 if (rvp->bcn_mbuf != NULL) 2271 m_freem(rvp->bcn_mbuf); 2272 2273 rvp->bcn_mbuf = m; 2274 2275 return (rum_set_beacon(sc, vap)); 2276} 2277 2278static int 2279rum_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 2280 const struct ieee80211_bpf_params *params) 2281{ 2282 struct rum_softc *sc = ni->ni_ic->ic_softc; 2283 int ret; 2284 2285 RUM_LOCK(sc); 2286 /* prevent management frames from being sent if we're not ready */ 2287 if (!sc->sc_running) { 2288 ret = ENETDOWN; 2289 goto bad; 2290 } 2291 if (sc->tx_nfree < RUM_TX_MINFREE) { 2292 ret = EIO; 2293 goto bad; 2294 } 2295 2296 if (params == NULL) { 2297 /* 2298 * Legacy path; interpret frame contents to decide 2299 * precisely how to send the frame. 2300 */ 2301 if ((ret = rum_tx_mgt(sc, m, ni)) != 0) 2302 goto bad; 2303 } else { 2304 /* 2305 * Caller supplied explicit parameters to use in 2306 * sending the frame. 2307 */ 2308 if ((ret = rum_tx_raw(sc, m, ni, params)) != 0) 2309 goto bad; 2310 } 2311 RUM_UNLOCK(sc); 2312 2313 return 0; 2314bad: 2315 RUM_UNLOCK(sc); 2316 m_freem(m); 2317 ieee80211_free_node(ni); 2318 return ret; 2319} 2320 2321static void 2322rum_ratectl_start(struct rum_softc *sc, struct ieee80211_node *ni) 2323{ 2324 struct ieee80211vap *vap = ni->ni_vap; 2325 struct rum_vap *rvp = RUM_VAP(vap); 2326 2327 /* clear statistic registers (STA_CSR0 to STA_CSR5) */ 2328 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof sc->sta); 2329 2330 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2331} 2332 2333static void 2334rum_ratectl_timeout(void *arg) 2335{ 2336 struct rum_vap *rvp = arg; 2337 struct ieee80211vap *vap = &rvp->vap; 2338 struct ieee80211com *ic = vap->iv_ic; 2339 2340 ieee80211_runtask(ic, &rvp->ratectl_task); 2341} 2342 2343static void 2344rum_ratectl_task(void *arg, int pending) 2345{ 2346 struct rum_vap *rvp = arg; 2347 struct ieee80211vap *vap = &rvp->vap; 2348 struct ieee80211com *ic = vap->iv_ic; 2349 struct rum_softc *sc = ic->ic_softc; 2350 struct ieee80211_node *ni; 2351 int ok, fail; 2352 int sum, retrycnt; 2353 2354 RUM_LOCK(sc); 2355 /* read and clear statistic registers (STA_CSR0 to STA_CSR10) */ 2356 rum_read_multi(sc, RT2573_STA_CSR0, sc->sta, sizeof(sc->sta)); 2357 2358 ok = (le32toh(sc->sta[4]) >> 16) + /* TX ok w/o retry */ 2359 (le32toh(sc->sta[5]) & 0xffff); /* TX ok w/ retry */ 2360 fail = (le32toh(sc->sta[5]) >> 16); /* TX retry-fail count */ 2361 sum = ok+fail; 2362 retrycnt = (le32toh(sc->sta[5]) & 0xffff) + fail; 2363 2364 ni = ieee80211_ref_node(vap->iv_bss); 2365 ieee80211_ratectl_tx_update(vap, ni, &sum, &ok, &retrycnt); 2366 (void) ieee80211_ratectl_rate(ni, NULL, 0); 2367 ieee80211_free_node(ni); 2368 2369 /* count TX retry-fail as Tx errors */ 2370 if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, fail); 2371 2372 usb_callout_reset(&rvp->ratectl_ch, hz, rum_ratectl_timeout, rvp); 2373 RUM_UNLOCK(sc); 2374} 2375 2376static void 2377rum_scan_start(struct ieee80211com *ic) 2378{ 2379 struct rum_softc *sc = ic->ic_softc; 2380 2381 RUM_LOCK(sc); 2382 rum_abort_tsf_sync(sc); 2383 rum_set_bssid(sc, ieee80211broadcastaddr); 2384 RUM_UNLOCK(sc); 2385 2386} 2387 2388static void 2389rum_scan_end(struct ieee80211com *ic) 2390{ 2391 struct rum_softc *sc = ic->ic_softc; 2392 2393 RUM_LOCK(sc); 2394 if (ic->ic_opmode != IEEE80211_M_AHDEMO) 2395 rum_enable_tsf_sync(sc); 2396 else 2397 rum_enable_tsf(sc); 2398 rum_set_bssid(sc, sc->sc_bssid); 2399 RUM_UNLOCK(sc); 2400 2401} 2402 2403static void 2404rum_set_channel(struct ieee80211com *ic) 2405{ 2406 struct rum_softc *sc = ic->ic_softc; 2407 2408 RUM_LOCK(sc); 2409 rum_set_chan(sc, ic->ic_curchan); 2410 RUM_UNLOCK(sc); 2411} 2412 2413static int 2414rum_get_rssi(struct rum_softc *sc, uint8_t raw) 2415{ 2416 struct ieee80211com *ic = &sc->sc_ic; 2417 int lna, agc, rssi; 2418 2419 lna = (raw >> 5) & 0x3; 2420 agc = raw & 0x1f; 2421 2422 if (lna == 0) { 2423 /* 2424 * No RSSI mapping 2425 * 2426 * NB: Since RSSI is relative to noise floor, -1 is 2427 * adequate for caller to know error happened. 2428 */ 2429 return -1; 2430 } 2431 2432 rssi = (2 * agc) - RT2573_NOISE_FLOOR; 2433 2434 if (IEEE80211_IS_CHAN_2GHZ(ic->ic_curchan)) { 2435 rssi += sc->rssi_2ghz_corr; 2436 2437 if (lna == 1) 2438 rssi -= 64; 2439 else if (lna == 2) 2440 rssi -= 74; 2441 else if (lna == 3) 2442 rssi -= 90; 2443 } else { 2444 rssi += sc->rssi_5ghz_corr; 2445 2446 if (!sc->ext_5ghz_lna && lna != 1) 2447 rssi += 4; 2448 2449 if (lna == 1) 2450 rssi -= 64; 2451 else if (lna == 2) 2452 rssi -= 86; 2453 else if (lna == 3) 2454 rssi -= 100; 2455 } 2456 return rssi; 2457} 2458 2459static int 2460rum_pause(struct rum_softc *sc, int timeout) 2461{ 2462 2463 usb_pause_mtx(&sc->sc_mtx, timeout); 2464 return (0); 2465} 2466 2467static device_method_t rum_methods[] = { 2468 /* Device interface */ 2469 DEVMETHOD(device_probe, rum_match), 2470 DEVMETHOD(device_attach, rum_attach), 2471 DEVMETHOD(device_detach, rum_detach), 2472 DEVMETHOD_END 2473}; 2474 2475static driver_t rum_driver = { 2476 .name = "rum", 2477 .methods = rum_methods, 2478 .size = sizeof(struct rum_softc), 2479}; 2480 2481static devclass_t rum_devclass; 2482 2483DRIVER_MODULE(rum, uhub, rum_driver, rum_devclass, NULL, 0); 2484MODULE_DEPEND(rum, wlan, 1, 1, 1); 2485MODULE_DEPEND(rum, usb, 1, 1, 1); 2486MODULE_VERSION(rum, 1); 2487