1 /* 2 * Copyright (c) 2007 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Sepherosa Ziehau <sepherosa@gmail.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $DragonFly: src/sys/dev/netif/bwi/if_bwi.c,v 1.19 2008/02/15 11:15:38 sephe Exp $ 35 */ 36 37 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 #include "opt_inet.h" 41 #include "opt_bwi.h" 42 43 #include <sys/param.h> 44 #include <sys/endian.h> 45 #include <sys/kernel.h> 46 #include <sys/bus.h> 47 #include <sys/malloc.h> 48 #include <sys/proc.h> 49 #include <sys/rman.h> 50 #include <sys/socket.h> 51 #include <sys/sockio.h> 52 #include <sys/sysctl.h> 53 #include <sys/systm.h> 54 #include <sys/taskqueue.h> 55 56 #include <net/if.h> 57 #include <net/if_dl.h> 58 #include <net/if_media.h> 59 #include <net/if_types.h> 60 #include <net/if_arp.h> 61 #include <net/ethernet.h> 62 #include <net/if_llc.h> 63 64 #include <net80211/ieee80211_var.h> 65 #include <net80211/ieee80211_radiotap.h> 66 #include <net80211/ieee80211_regdomain.h> 67 #include <net80211/ieee80211_phy.h> 68 #include <net80211/ieee80211_ratectl.h> 69 70 #include <net/bpf.h> 71 72 #ifdef INET 73 #include <netinet/in.h> 74 #include <netinet/if_ether.h> 75 #endif 76 77 #include <machine/bus.h> 78 79 #include <dev/pci/pcivar.h> 80 #include <dev/pci/pcireg.h> 81 82 #include <dev/bwi/bitops.h> 83 #include <dev/bwi/if_bwireg.h> 84 #include <dev/bwi/if_bwivar.h> 85 #include <dev/bwi/bwimac.h> 86 #include <dev/bwi/bwirf.h> 87 88 struct bwi_clock_freq { 89 u_int clkfreq_min; 90 u_int clkfreq_max; 91 }; 92 93 struct bwi_myaddr_bssid { 94 uint8_t myaddr[IEEE80211_ADDR_LEN]; 95 uint8_t bssid[IEEE80211_ADDR_LEN]; 96 } __packed; 97 98 static struct ieee80211vap *bwi_vap_create(struct ieee80211com *, 99 const char [IFNAMSIZ], int, int, int, 100 const uint8_t [IEEE80211_ADDR_LEN], 101 const uint8_t [IEEE80211_ADDR_LEN]); 102 static void bwi_vap_delete(struct ieee80211vap *); 103 static void bwi_init(void *); 104 static int bwi_ioctl(struct ifnet *, u_long, caddr_t); 105 static void bwi_start(struct ifnet *); 106 static void bwi_start_locked(struct ifnet *); 107 static int bwi_raw_xmit(struct ieee80211_node *, struct mbuf *, 108 const struct ieee80211_bpf_params *); 109 static void bwi_watchdog(void *); 110 static void bwi_scan_start(struct ieee80211com *); 111 static void bwi_set_channel(struct ieee80211com *); 112 static void bwi_scan_end(struct ieee80211com *); 113 static int bwi_newstate(struct ieee80211vap *, enum ieee80211_state, int); 114 static void bwi_updateslot(struct ifnet *); 115 static int bwi_media_change(struct ifnet *); 116 117 static void bwi_calibrate(void *); 118 119 static int bwi_calc_rssi(struct bwi_softc *, const struct bwi_rxbuf_hdr *); 120 static int bwi_calc_noise(struct bwi_softc *); 121 static __inline uint8_t bwi_ofdm_plcp2rate(const uint32_t *); 122 static __inline uint8_t bwi_ds_plcp2rate(const struct ieee80211_ds_plcp_hdr *); 123 static void bwi_rx_radiotap(struct bwi_softc *, struct mbuf *, 124 struct bwi_rxbuf_hdr *, const void *, int, int, int); 125 126 static void bwi_restart(void *, int); 127 static void bwi_init_statechg(struct bwi_softc *, int); 128 static void bwi_stop(struct bwi_softc *, int); 129 static void bwi_stop_locked(struct bwi_softc *, int); 130 static int bwi_newbuf(struct bwi_softc *, int, int); 131 static int bwi_encap(struct bwi_softc *, int, struct mbuf *, 132 struct ieee80211_node *); 133 static int bwi_encap_raw(struct bwi_softc *, int, struct mbuf *, 134 struct ieee80211_node *, 135 const struct ieee80211_bpf_params *); 136 137 static void bwi_init_rxdesc_ring32(struct bwi_softc *, uint32_t, 138 bus_addr_t, int, int); 139 static void bwi_reset_rx_ring32(struct bwi_softc *, uint32_t); 140 141 static int bwi_init_tx_ring32(struct bwi_softc *, int); 142 static int bwi_init_rx_ring32(struct bwi_softc *); 143 static int bwi_init_txstats32(struct bwi_softc *); 144 static void bwi_free_tx_ring32(struct bwi_softc *, int); 145 static void bwi_free_rx_ring32(struct bwi_softc *); 146 static void bwi_free_txstats32(struct bwi_softc *); 147 static void bwi_setup_rx_desc32(struct bwi_softc *, int, bus_addr_t, int); 148 static void bwi_setup_tx_desc32(struct bwi_softc *, struct bwi_ring_data *, 149 int, bus_addr_t, int); 150 static int bwi_rxeof32(struct bwi_softc *); 151 static void bwi_start_tx32(struct bwi_softc *, uint32_t, int); 152 static void bwi_txeof_status32(struct bwi_softc *); 153 154 static int bwi_init_tx_ring64(struct bwi_softc *, int); 155 static int bwi_init_rx_ring64(struct bwi_softc *); 156 static int bwi_init_txstats64(struct bwi_softc *); 157 static void bwi_free_tx_ring64(struct bwi_softc *, int); 158 static void bwi_free_rx_ring64(struct bwi_softc *); 159 static void bwi_free_txstats64(struct bwi_softc *); 160 static void bwi_setup_rx_desc64(struct bwi_softc *, int, bus_addr_t, int); 161 static void bwi_setup_tx_desc64(struct bwi_softc *, struct bwi_ring_data *, 162 int, bus_addr_t, int); 163 static int bwi_rxeof64(struct bwi_softc *); 164 static void bwi_start_tx64(struct bwi_softc *, uint32_t, int); 165 static void bwi_txeof_status64(struct bwi_softc *); 166 167 static int bwi_rxeof(struct bwi_softc *, int); 168 static void _bwi_txeof(struct bwi_softc *, uint16_t, int, int); 169 static void bwi_txeof(struct bwi_softc *); 170 static void bwi_txeof_status(struct bwi_softc *, int); 171 static void bwi_enable_intrs(struct bwi_softc *, uint32_t); 172 static void bwi_disable_intrs(struct bwi_softc *, uint32_t); 173 174 static int bwi_dma_alloc(struct bwi_softc *); 175 static void bwi_dma_free(struct bwi_softc *); 176 static int bwi_dma_ring_alloc(struct bwi_softc *, bus_dma_tag_t, 177 struct bwi_ring_data *, bus_size_t, 178 uint32_t); 179 static int bwi_dma_mbuf_create(struct bwi_softc *); 180 static void bwi_dma_mbuf_destroy(struct bwi_softc *, int, int); 181 static int bwi_dma_txstats_alloc(struct bwi_softc *, uint32_t, bus_size_t); 182 static void bwi_dma_txstats_free(struct bwi_softc *); 183 static void bwi_dma_ring_addr(void *, bus_dma_segment_t *, int, int); 184 static void bwi_dma_buf_addr(void *, bus_dma_segment_t *, int, 185 bus_size_t, int); 186 187 static void bwi_power_on(struct bwi_softc *, int); 188 static int bwi_power_off(struct bwi_softc *, int); 189 static int bwi_set_clock_mode(struct bwi_softc *, enum bwi_clock_mode); 190 static int bwi_set_clock_delay(struct bwi_softc *); 191 static void bwi_get_clock_freq(struct bwi_softc *, struct bwi_clock_freq *); 192 static int bwi_get_pwron_delay(struct bwi_softc *sc); 193 static void bwi_set_addr_filter(struct bwi_softc *, uint16_t, 194 const uint8_t *); 195 static void bwi_set_bssid(struct bwi_softc *, const uint8_t *); 196 197 static void bwi_get_card_flags(struct bwi_softc *); 198 static void bwi_get_eaddr(struct bwi_softc *, uint16_t, uint8_t *); 199 200 static int bwi_bus_attach(struct bwi_softc *); 201 static int bwi_bbp_attach(struct bwi_softc *); 202 static int bwi_bbp_power_on(struct bwi_softc *, enum bwi_clock_mode); 203 static void bwi_bbp_power_off(struct bwi_softc *); 204 205 static const char *bwi_regwin_name(const struct bwi_regwin *); 206 static uint32_t bwi_regwin_disable_bits(struct bwi_softc *); 207 static void bwi_regwin_info(struct bwi_softc *, uint16_t *, uint8_t *); 208 static int bwi_regwin_select(struct bwi_softc *, int); 209 210 static void bwi_led_attach(struct bwi_softc *); 211 static void bwi_led_newstate(struct bwi_softc *, enum ieee80211_state); 212 static void bwi_led_event(struct bwi_softc *, int); 213 static void bwi_led_blink_start(struct bwi_softc *, int, int); 214 static void bwi_led_blink_next(void *); 215 static void bwi_led_blink_end(void *); 216 217 static const struct { 218 uint16_t did_min; 219 uint16_t did_max; 220 uint16_t bbp_id; 221 } bwi_bbpid_map[] = { 222 { 0x4301, 0x4301, 0x4301 }, 223 { 0x4305, 0x4307, 0x4307 }, 224 { 0x4403, 0x4403, 0x4402 }, 225 { 0x4610, 0x4615, 0x4610 }, 226 { 0x4710, 0x4715, 0x4710 }, 227 { 0x4720, 0x4725, 0x4309 } 228 }; 229 230 static const struct { 231 uint16_t bbp_id; 232 int nregwin; 233 } bwi_regwin_count[] = { 234 { 0x4301, 5 }, 235 { 0x4306, 6 }, 236 { 0x4307, 5 }, 237 { 0x4310, 8 }, 238 { 0x4401, 3 }, 239 { 0x4402, 3 }, 240 { 0x4610, 9 }, 241 { 0x4704, 9 }, 242 { 0x4710, 9 }, 243 { 0x5365, 7 } 244 }; 245 246 #define CLKSRC(src) \ 247 [BWI_CLKSRC_ ## src] = { \ 248 .freq_min = BWI_CLKSRC_ ##src## _FMIN, \ 249 .freq_max = BWI_CLKSRC_ ##src## _FMAX \ 250 } 251 252 static const struct { 253 u_int freq_min; 254 u_int freq_max; 255 } bwi_clkfreq[BWI_CLKSRC_MAX] = { 256 CLKSRC(LP_OSC), 257 CLKSRC(CS_OSC), 258 CLKSRC(PCI) 259 }; 260 261 #undef CLKSRC 262 263 #define VENDOR_LED_ACT(vendor) \ 264 { \ 265 .vid = PCI_VENDOR_##vendor, \ 266 .led_act = { BWI_VENDOR_LED_ACT_##vendor } \ 267 } 268 269 static const struct { 270 #define PCI_VENDOR_COMPAQ 0x0e11 271 #define PCI_VENDOR_LINKSYS 0x1737 272 uint16_t vid; 273 uint8_t led_act[BWI_LED_MAX]; 274 } bwi_vendor_led_act[] = { 275 VENDOR_LED_ACT(COMPAQ), 276 VENDOR_LED_ACT(LINKSYS) 277 #undef PCI_VENDOR_LINKSYS 278 #undef PCI_VENDOR_COMPAQ 279 }; 280 281 static const uint8_t bwi_default_led_act[BWI_LED_MAX] = 282 { BWI_VENDOR_LED_ACT_DEFAULT }; 283 284 #undef VENDOR_LED_ACT 285 286 static const struct { 287 int on_dur; 288 int off_dur; 289 } bwi_led_duration[109] = { 290 [0] = { 400, 100 }, 291 [2] = { 150, 75 }, 292 [4] = { 90, 45 }, 293 [11] = { 66, 34 }, 294 [12] = { 53, 26 }, 295 [18] = { 42, 21 }, 296 [22] = { 35, 17 }, 297 [24] = { 32, 16 }, 298 [36] = { 21, 10 }, 299 [48] = { 16, 8 }, 300 [72] = { 11, 5 }, 301 [96] = { 9, 4 }, 302 [108] = { 7, 3 } 303 }; 304 305 #ifdef BWI_DEBUG 306 #ifdef BWI_DEBUG_VERBOSE 307 static uint32_t bwi_debug = BWI_DBG_ATTACH | BWI_DBG_INIT | BWI_DBG_TXPOWER; 308 #else 309 static uint32_t bwi_debug; 310 #endif 311 TUNABLE_INT("hw.bwi.debug", (int *)&bwi_debug); 312 #endif /* BWI_DEBUG */ 313 314 static const uint8_t bwi_zero_addr[IEEE80211_ADDR_LEN]; 315 316 uint16_t 317 bwi_read_sprom(struct bwi_softc *sc, uint16_t ofs) 318 { 319 return CSR_READ_2(sc, ofs + BWI_SPROM_START); 320 } 321 322 static __inline void 323 bwi_setup_desc32(struct bwi_softc *sc, struct bwi_desc32 *desc_array, 324 int ndesc, int desc_idx, bus_addr_t paddr, int buf_len, 325 int tx) 326 { 327 struct bwi_desc32 *desc = &desc_array[desc_idx]; 328 uint32_t ctrl, addr, addr_hi, addr_lo; 329 330 addr_lo = __SHIFTOUT(paddr, BWI_DESC32_A_ADDR_MASK); 331 addr_hi = __SHIFTOUT(paddr, BWI_DESC32_A_FUNC_MASK); 332 333 addr = __SHIFTIN(addr_lo, BWI_DESC32_A_ADDR_MASK) | 334 __SHIFTIN(BWI_DESC32_A_FUNC_TXRX, BWI_DESC32_A_FUNC_MASK); 335 336 ctrl = __SHIFTIN(buf_len, BWI_DESC32_C_BUFLEN_MASK) | 337 __SHIFTIN(addr_hi, BWI_DESC32_C_ADDRHI_MASK); 338 if (desc_idx == ndesc - 1) 339 ctrl |= BWI_DESC32_C_EOR; 340 if (tx) { 341 /* XXX */ 342 ctrl |= BWI_DESC32_C_FRAME_START | 343 BWI_DESC32_C_FRAME_END | 344 BWI_DESC32_C_INTR; 345 } 346 347 desc->addr = htole32(addr); 348 desc->ctrl = htole32(ctrl); 349 } 350 351 int 352 bwi_attach(struct bwi_softc *sc) 353 { 354 struct ieee80211com *ic; 355 device_t dev = sc->sc_dev; 356 struct ifnet *ifp; 357 struct bwi_mac *mac; 358 struct bwi_phy *phy; 359 int i, error; 360 uint8_t bands; 361 uint8_t macaddr[IEEE80211_ADDR_LEN]; 362 363 BWI_LOCK_INIT(sc); 364 365 /* 366 * Initialize taskq and various tasks 367 */ 368 sc->sc_tq = taskqueue_create("bwi_taskq", M_NOWAIT | M_ZERO, 369 taskqueue_thread_enqueue, &sc->sc_tq); 370 taskqueue_start_threads(&sc->sc_tq, 1, PI_NET, "%s taskq", 371 device_get_nameunit(dev)); 372 TASK_INIT(&sc->sc_restart_task, 0, bwi_restart, sc); 373 374 callout_init_mtx(&sc->sc_calib_ch, &sc->sc_mtx, 0); 375 376 /* 377 * Initialize sysctl variables 378 */ 379 sc->sc_fw_version = BWI_FW_VERSION3; 380 sc->sc_led_idle = (2350 * hz) / 1000; 381 sc->sc_led_blink = 1; 382 sc->sc_txpwr_calib = 1; 383 #ifdef BWI_DEBUG 384 sc->sc_debug = bwi_debug; 385 #endif 386 bwi_power_on(sc, 1); 387 388 error = bwi_bbp_attach(sc); 389 if (error) 390 goto fail; 391 392 error = bwi_bbp_power_on(sc, BWI_CLOCK_MODE_FAST); 393 if (error) 394 goto fail; 395 396 if (BWI_REGWIN_EXIST(&sc->sc_com_regwin)) { 397 error = bwi_set_clock_delay(sc); 398 if (error) 399 goto fail; 400 401 error = bwi_set_clock_mode(sc, BWI_CLOCK_MODE_FAST); 402 if (error) 403 goto fail; 404 405 error = bwi_get_pwron_delay(sc); 406 if (error) 407 goto fail; 408 } 409 410 error = bwi_bus_attach(sc); 411 if (error) 412 goto fail; 413 414 bwi_get_card_flags(sc); 415 416 bwi_led_attach(sc); 417 418 for (i = 0; i < sc->sc_nmac; ++i) { 419 struct bwi_regwin *old; 420 421 mac = &sc->sc_mac[i]; 422 error = bwi_regwin_switch(sc, &mac->mac_regwin, &old); 423 if (error) 424 goto fail; 425 426 error = bwi_mac_lateattach(mac); 427 if (error) 428 goto fail; 429 430 error = bwi_regwin_switch(sc, old, NULL); 431 if (error) 432 goto fail; 433 } 434 435 /* 436 * XXX First MAC is known to exist 437 * TODO2 438 */ 439 mac = &sc->sc_mac[0]; 440 phy = &mac->mac_phy; 441 442 bwi_bbp_power_off(sc); 443 444 error = bwi_dma_alloc(sc); 445 if (error) 446 goto fail; 447 448 ifp = sc->sc_ifp = if_alloc(IFT_IEEE80211); 449 if (ifp == NULL) { 450 device_printf(dev, "can not if_alloc()\n"); 451 error = ENOSPC; 452 goto fail; 453 } 454 ic = ifp->if_l2com; 455 456 /* set these up early for if_printf use */ 457 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 458 459 ifp->if_softc = sc; 460 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 461 ifp->if_init = bwi_init; 462 ifp->if_ioctl = bwi_ioctl; 463 ifp->if_start = bwi_start; 464 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 465 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 466 IFQ_SET_READY(&ifp->if_snd); 467 callout_init_mtx(&sc->sc_watchdog_timer, &sc->sc_mtx, 0); 468 469 /* 470 * Setup ratesets, phytype, channels and get MAC address 471 */ 472 bands = 0; 473 if (phy->phy_mode == IEEE80211_MODE_11B || 474 phy->phy_mode == IEEE80211_MODE_11G) { 475 setbit(&bands, IEEE80211_MODE_11B); 476 if (phy->phy_mode == IEEE80211_MODE_11B) { 477 ic->ic_phytype = IEEE80211_T_DS; 478 } else { 479 ic->ic_phytype = IEEE80211_T_OFDM; 480 setbit(&bands, IEEE80211_MODE_11G); 481 } 482 483 bwi_get_eaddr(sc, BWI_SPROM_11BG_EADDR, macaddr); 484 if (IEEE80211_IS_MULTICAST(macaddr)) { 485 bwi_get_eaddr(sc, BWI_SPROM_11A_EADDR, macaddr); 486 if (IEEE80211_IS_MULTICAST(macaddr)) { 487 device_printf(dev, 488 "invalid MAC address: %6D\n", 489 macaddr, ":"); 490 } 491 } 492 } else if (phy->phy_mode == IEEE80211_MODE_11A) { 493 /* TODO:11A */ 494 setbit(&bands, IEEE80211_MODE_11A); 495 error = ENXIO; 496 goto fail; 497 } else { 498 panic("unknown phymode %d\n", phy->phy_mode); 499 } 500 501 /* Get locale */ 502 sc->sc_locale = __SHIFTOUT(bwi_read_sprom(sc, BWI_SPROM_CARD_INFO), 503 BWI_SPROM_CARD_INFO_LOCALE); 504 DPRINTF(sc, BWI_DBG_ATTACH, "locale: %d\n", sc->sc_locale); 505 /* XXX use locale */ 506 ieee80211_init_channels(ic, NULL, &bands); 507 508 ic->ic_ifp = ifp; 509 ic->ic_caps = IEEE80211_C_STA | 510 IEEE80211_C_SHSLOT | 511 IEEE80211_C_SHPREAMBLE | 512 IEEE80211_C_WPA | 513 IEEE80211_C_BGSCAN | 514 IEEE80211_C_MONITOR; 515 ic->ic_opmode = IEEE80211_M_STA; 516 ieee80211_ifattach(ic, macaddr); 517 518 ic->ic_headroom = sizeof(struct bwi_txbuf_hdr); 519 520 /* override default methods */ 521 ic->ic_vap_create = bwi_vap_create; 522 ic->ic_vap_delete = bwi_vap_delete; 523 ic->ic_raw_xmit = bwi_raw_xmit; 524 ic->ic_updateslot = bwi_updateslot; 525 ic->ic_scan_start = bwi_scan_start; 526 ic->ic_scan_end = bwi_scan_end; 527 ic->ic_set_channel = bwi_set_channel; 528 529 sc->sc_rates = ieee80211_get_ratetable(ic->ic_curchan); 530 531 ieee80211_radiotap_attach(ic, 532 &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th), 533 BWI_TX_RADIOTAP_PRESENT, 534 &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th), 535 BWI_RX_RADIOTAP_PRESENT); 536 537 /* 538 * Add sysctl nodes 539 */ 540 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 541 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, 542 "fw_version", CTLFLAG_RD, &sc->sc_fw_version, 0, 543 "Firmware version"); 544 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 545 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, 546 "led_idle", CTLFLAG_RW, &sc->sc_led_idle, 0, 547 "# ticks before LED enters idle state"); 548 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 549 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, 550 "led_blink", CTLFLAG_RW, &sc->sc_led_blink, 0, 551 "Allow LED to blink"); 552 SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 553 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, 554 "txpwr_calib", CTLFLAG_RW, &sc->sc_txpwr_calib, 0, 555 "Enable software TX power calibration"); 556 #ifdef BWI_DEBUG 557 SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev), 558 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, 559 "debug", CTLFLAG_RW, &sc->sc_debug, 0, "Debug flags"); 560 #endif 561 if (bootverbose) 562 ieee80211_announce(ic); 563 564 return (0); 565 fail: 566 BWI_LOCK_DESTROY(sc); 567 return (error); 568 } 569 570 int 571 bwi_detach(struct bwi_softc *sc) 572 { 573 struct ifnet *ifp = sc->sc_ifp; 574 struct ieee80211com *ic = ifp->if_l2com; 575 int i; 576 577 bwi_stop(sc, 1); 578 callout_drain(&sc->sc_led_blink_ch); 579 callout_drain(&sc->sc_calib_ch); 580 callout_drain(&sc->sc_watchdog_timer); 581 ieee80211_ifdetach(ic); 582 583 for (i = 0; i < sc->sc_nmac; ++i) 584 bwi_mac_detach(&sc->sc_mac[i]); 585 bwi_dma_free(sc); 586 if_free(ifp); 587 taskqueue_free(sc->sc_tq); 588 589 BWI_LOCK_DESTROY(sc); 590 591 return (0); 592 } 593 594 static struct ieee80211vap * 595 bwi_vap_create(struct ieee80211com *ic, 596 const char name[IFNAMSIZ], int unit, int opmode, int flags, 597 const uint8_t bssid[IEEE80211_ADDR_LEN], 598 const uint8_t mac[IEEE80211_ADDR_LEN]) 599 { 600 struct bwi_vap *bvp; 601 struct ieee80211vap *vap; 602 603 if (!TAILQ_EMPTY(&ic->ic_vaps)) /* only one at a time */ 604 return NULL; 605 bvp = (struct bwi_vap *) malloc(sizeof(struct bwi_vap), 606 M_80211_VAP, M_WAITOK | M_ZERO); 607 if (bvp == NULL) 608 return NULL; 609 vap = &bvp->bv_vap; 610 /* enable s/w bmiss handling for sta mode */ 611 ieee80211_vap_setup(ic, vap, name, unit, opmode, 612 flags | IEEE80211_CLONE_NOBEACONS, bssid, mac); 613 614 /* override default methods */ 615 bvp->bv_newstate = vap->iv_newstate; 616 vap->iv_newstate = bwi_newstate; 617 #if 0 618 vap->iv_update_beacon = bwi_beacon_update; 619 #endif 620 ieee80211_ratectl_init(vap); 621 622 /* complete setup */ 623 ieee80211_vap_attach(vap, bwi_media_change, ieee80211_media_status); 624 ic->ic_opmode = opmode; 625 return vap; 626 } 627 628 static void 629 bwi_vap_delete(struct ieee80211vap *vap) 630 { 631 struct bwi_vap *bvp = BWI_VAP(vap); 632 633 ieee80211_ratectl_deinit(vap); 634 ieee80211_vap_detach(vap); 635 free(bvp, M_80211_VAP); 636 } 637 638 void 639 bwi_suspend(struct bwi_softc *sc) 640 { 641 bwi_stop(sc, 1); 642 } 643 644 void 645 bwi_resume(struct bwi_softc *sc) 646 { 647 struct ifnet *ifp = sc->sc_ifp; 648 649 if (ifp->if_flags & IFF_UP) 650 bwi_init(sc); 651 } 652 653 int 654 bwi_shutdown(struct bwi_softc *sc) 655 { 656 bwi_stop(sc, 1); 657 return 0; 658 } 659 660 static void 661 bwi_power_on(struct bwi_softc *sc, int with_pll) 662 { 663 uint32_t gpio_in, gpio_out, gpio_en; 664 uint16_t status; 665 666 gpio_in = pci_read_config(sc->sc_dev, BWI_PCIR_GPIO_IN, 4); 667 if (gpio_in & BWI_PCIM_GPIO_PWR_ON) 668 goto back; 669 670 gpio_out = pci_read_config(sc->sc_dev, BWI_PCIR_GPIO_OUT, 4); 671 gpio_en = pci_read_config(sc->sc_dev, BWI_PCIR_GPIO_ENABLE, 4); 672 673 gpio_out |= BWI_PCIM_GPIO_PWR_ON; 674 gpio_en |= BWI_PCIM_GPIO_PWR_ON; 675 if (with_pll) { 676 /* Turn off PLL first */ 677 gpio_out |= BWI_PCIM_GPIO_PLL_PWR_OFF; 678 gpio_en |= BWI_PCIM_GPIO_PLL_PWR_OFF; 679 } 680 681 pci_write_config(sc->sc_dev, BWI_PCIR_GPIO_OUT, gpio_out, 4); 682 pci_write_config(sc->sc_dev, BWI_PCIR_GPIO_ENABLE, gpio_en, 4); 683 DELAY(1000); 684 685 if (with_pll) { 686 /* Turn on PLL */ 687 gpio_out &= ~BWI_PCIM_GPIO_PLL_PWR_OFF; 688 pci_write_config(sc->sc_dev, BWI_PCIR_GPIO_OUT, gpio_out, 4); 689 DELAY(5000); 690 } 691 692 back: 693 /* Clear "Signaled Target Abort" */ 694 status = pci_read_config(sc->sc_dev, PCIR_STATUS, 2); 695 status &= ~PCIM_STATUS_STABORT; 696 pci_write_config(sc->sc_dev, PCIR_STATUS, status, 2); 697 } 698 699 static int 700 bwi_power_off(struct bwi_softc *sc, int with_pll) 701 { 702 uint32_t gpio_out, gpio_en; 703 704 pci_read_config(sc->sc_dev, BWI_PCIR_GPIO_IN, 4); /* dummy read */ 705 gpio_out = pci_read_config(sc->sc_dev, BWI_PCIR_GPIO_OUT, 4); 706 gpio_en = pci_read_config(sc->sc_dev, BWI_PCIR_GPIO_ENABLE, 4); 707 708 gpio_out &= ~BWI_PCIM_GPIO_PWR_ON; 709 gpio_en |= BWI_PCIM_GPIO_PWR_ON; 710 if (with_pll) { 711 gpio_out |= BWI_PCIM_GPIO_PLL_PWR_OFF; 712 gpio_en |= BWI_PCIM_GPIO_PLL_PWR_OFF; 713 } 714 715 pci_write_config(sc->sc_dev, BWI_PCIR_GPIO_OUT, gpio_out, 4); 716 pci_write_config(sc->sc_dev, BWI_PCIR_GPIO_ENABLE, gpio_en, 4); 717 return 0; 718 } 719 720 int 721 bwi_regwin_switch(struct bwi_softc *sc, struct bwi_regwin *rw, 722 struct bwi_regwin **old_rw) 723 { 724 int error; 725 726 if (old_rw != NULL) 727 *old_rw = NULL; 728 729 if (!BWI_REGWIN_EXIST(rw)) 730 return EINVAL; 731 732 if (sc->sc_cur_regwin != rw) { 733 error = bwi_regwin_select(sc, rw->rw_id); 734 if (error) { 735 device_printf(sc->sc_dev, "can't select regwin %d\n", 736 rw->rw_id); 737 return error; 738 } 739 } 740 741 if (old_rw != NULL) 742 *old_rw = sc->sc_cur_regwin; 743 sc->sc_cur_regwin = rw; 744 return 0; 745 } 746 747 static int 748 bwi_regwin_select(struct bwi_softc *sc, int id) 749 { 750 uint32_t win = BWI_PCIM_REGWIN(id); 751 int i; 752 753 #define RETRY_MAX 50 754 for (i = 0; i < RETRY_MAX; ++i) { 755 pci_write_config(sc->sc_dev, BWI_PCIR_SEL_REGWIN, win, 4); 756 if (pci_read_config(sc->sc_dev, BWI_PCIR_SEL_REGWIN, 4) == win) 757 return 0; 758 DELAY(10); 759 } 760 #undef RETRY_MAX 761 762 return ENXIO; 763 } 764 765 static void 766 bwi_regwin_info(struct bwi_softc *sc, uint16_t *type, uint8_t *rev) 767 { 768 uint32_t val; 769 770 val = CSR_READ_4(sc, BWI_ID_HI); 771 *type = BWI_ID_HI_REGWIN_TYPE(val); 772 *rev = BWI_ID_HI_REGWIN_REV(val); 773 774 DPRINTF(sc, BWI_DBG_ATTACH, "regwin: type 0x%03x, rev %d, " 775 "vendor 0x%04x\n", *type, *rev, 776 __SHIFTOUT(val, BWI_ID_HI_REGWIN_VENDOR_MASK)); 777 } 778 779 static int 780 bwi_bbp_attach(struct bwi_softc *sc) 781 { 782 #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) 783 uint16_t bbp_id, rw_type; 784 uint8_t rw_rev; 785 uint32_t info; 786 int error, nregwin, i; 787 788 /* 789 * Get 0th regwin information 790 * NOTE: 0th regwin should exist 791 */ 792 error = bwi_regwin_select(sc, 0); 793 if (error) { 794 device_printf(sc->sc_dev, "can't select regwin 0\n"); 795 return error; 796 } 797 bwi_regwin_info(sc, &rw_type, &rw_rev); 798 799 /* 800 * Find out BBP id 801 */ 802 bbp_id = 0; 803 info = 0; 804 if (rw_type == BWI_REGWIN_T_COM) { 805 info = CSR_READ_4(sc, BWI_INFO); 806 bbp_id = __SHIFTOUT(info, BWI_INFO_BBPID_MASK); 807 808 BWI_CREATE_REGWIN(&sc->sc_com_regwin, 0, rw_type, rw_rev); 809 810 sc->sc_cap = CSR_READ_4(sc, BWI_CAPABILITY); 811 } else { 812 for (i = 0; i < N(bwi_bbpid_map); ++i) { 813 if (sc->sc_pci_did >= bwi_bbpid_map[i].did_min && 814 sc->sc_pci_did <= bwi_bbpid_map[i].did_max) { 815 bbp_id = bwi_bbpid_map[i].bbp_id; 816 break; 817 } 818 } 819 if (bbp_id == 0) { 820 device_printf(sc->sc_dev, "no BBP id for device id " 821 "0x%04x\n", sc->sc_pci_did); 822 return ENXIO; 823 } 824 825 info = __SHIFTIN(sc->sc_pci_revid, BWI_INFO_BBPREV_MASK) | 826 __SHIFTIN(0, BWI_INFO_BBPPKG_MASK); 827 } 828 829 /* 830 * Find out number of regwins 831 */ 832 nregwin = 0; 833 if (rw_type == BWI_REGWIN_T_COM && rw_rev >= 4) { 834 nregwin = __SHIFTOUT(info, BWI_INFO_NREGWIN_MASK); 835 } else { 836 for (i = 0; i < N(bwi_regwin_count); ++i) { 837 if (bwi_regwin_count[i].bbp_id == bbp_id) { 838 nregwin = bwi_regwin_count[i].nregwin; 839 break; 840 } 841 } 842 if (nregwin == 0) { 843 device_printf(sc->sc_dev, "no number of win for " 844 "BBP id 0x%04x\n", bbp_id); 845 return ENXIO; 846 } 847 } 848 849 /* Record BBP id/rev for later using */ 850 sc->sc_bbp_id = bbp_id; 851 sc->sc_bbp_rev = __SHIFTOUT(info, BWI_INFO_BBPREV_MASK); 852 sc->sc_bbp_pkg = __SHIFTOUT(info, BWI_INFO_BBPPKG_MASK); 853 device_printf(sc->sc_dev, "BBP: id 0x%04x, rev 0x%x, pkg %d\n", 854 sc->sc_bbp_id, sc->sc_bbp_rev, sc->sc_bbp_pkg); 855 856 DPRINTF(sc, BWI_DBG_ATTACH, "nregwin %d, cap 0x%08x\n", 857 nregwin, sc->sc_cap); 858 859 /* 860 * Create rest of the regwins 861 */ 862 863 /* Don't re-create common regwin, if it is already created */ 864 i = BWI_REGWIN_EXIST(&sc->sc_com_regwin) ? 1 : 0; 865 866 for (; i < nregwin; ++i) { 867 /* 868 * Get regwin information 869 */ 870 error = bwi_regwin_select(sc, i); 871 if (error) { 872 device_printf(sc->sc_dev, 873 "can't select regwin %d\n", i); 874 return error; 875 } 876 bwi_regwin_info(sc, &rw_type, &rw_rev); 877 878 /* 879 * Try attach: 880 * 1) Bus (PCI/PCIE) regwin 881 * 2) MAC regwin 882 * Ignore rest types of regwin 883 */ 884 if (rw_type == BWI_REGWIN_T_BUSPCI || 885 rw_type == BWI_REGWIN_T_BUSPCIE) { 886 if (BWI_REGWIN_EXIST(&sc->sc_bus_regwin)) { 887 device_printf(sc->sc_dev, 888 "bus regwin already exists\n"); 889 } else { 890 BWI_CREATE_REGWIN(&sc->sc_bus_regwin, i, 891 rw_type, rw_rev); 892 } 893 } else if (rw_type == BWI_REGWIN_T_MAC) { 894 /* XXX ignore return value */ 895 bwi_mac_attach(sc, i, rw_rev); 896 } 897 } 898 899 /* At least one MAC shold exist */ 900 if (!BWI_REGWIN_EXIST(&sc->sc_mac[0].mac_regwin)) { 901 device_printf(sc->sc_dev, "no MAC was found\n"); 902 return ENXIO; 903 } 904 KASSERT(sc->sc_nmac > 0, ("no mac's")); 905 906 /* Bus regwin must exist */ 907 if (!BWI_REGWIN_EXIST(&sc->sc_bus_regwin)) { 908 device_printf(sc->sc_dev, "no bus regwin was found\n"); 909 return ENXIO; 910 } 911 912 /* Start with first MAC */ 913 error = bwi_regwin_switch(sc, &sc->sc_mac[0].mac_regwin, NULL); 914 if (error) 915 return error; 916 917 return 0; 918 #undef N 919 } 920 921 int 922 bwi_bus_init(struct bwi_softc *sc, struct bwi_mac *mac) 923 { 924 struct bwi_regwin *old, *bus; 925 uint32_t val; 926 int error; 927 928 bus = &sc->sc_bus_regwin; 929 KASSERT(sc->sc_cur_regwin == &mac->mac_regwin, ("not cur regwin")); 930 931 /* 932 * Tell bus to generate requested interrupts 933 */ 934 if (bus->rw_rev < 6 && bus->rw_type == BWI_REGWIN_T_BUSPCI) { 935 /* 936 * NOTE: Read BWI_FLAGS from MAC regwin 937 */ 938 val = CSR_READ_4(sc, BWI_FLAGS); 939 940 error = bwi_regwin_switch(sc, bus, &old); 941 if (error) 942 return error; 943 944 CSR_SETBITS_4(sc, BWI_INTRVEC, (val & BWI_FLAGS_INTR_MASK)); 945 } else { 946 uint32_t mac_mask; 947 948 mac_mask = 1 << mac->mac_id; 949 950 error = bwi_regwin_switch(sc, bus, &old); 951 if (error) 952 return error; 953 954 val = pci_read_config(sc->sc_dev, BWI_PCIR_INTCTL, 4); 955 val |= mac_mask << 8; 956 pci_write_config(sc->sc_dev, BWI_PCIR_INTCTL, val, 4); 957 } 958 959 if (sc->sc_flags & BWI_F_BUS_INITED) 960 goto back; 961 962 if (bus->rw_type == BWI_REGWIN_T_BUSPCI) { 963 /* 964 * Enable prefetch and burst 965 */ 966 CSR_SETBITS_4(sc, BWI_BUS_CONFIG, 967 BWI_BUS_CONFIG_PREFETCH | BWI_BUS_CONFIG_BURST); 968 969 if (bus->rw_rev < 5) { 970 struct bwi_regwin *com = &sc->sc_com_regwin; 971 972 /* 973 * Configure timeouts for bus operation 974 */ 975 976 /* 977 * Set service timeout and request timeout 978 */ 979 CSR_SETBITS_4(sc, BWI_CONF_LO, 980 __SHIFTIN(BWI_CONF_LO_SERVTO, BWI_CONF_LO_SERVTO_MASK) | 981 __SHIFTIN(BWI_CONF_LO_REQTO, BWI_CONF_LO_REQTO_MASK)); 982 983 /* 984 * If there is common regwin, we switch to that regwin 985 * and switch back to bus regwin once we have done. 986 */ 987 if (BWI_REGWIN_EXIST(com)) { 988 error = bwi_regwin_switch(sc, com, NULL); 989 if (error) 990 return error; 991 } 992 993 /* Let bus know what we have changed */ 994 CSR_WRITE_4(sc, BWI_BUS_ADDR, BWI_BUS_ADDR_MAGIC); 995 CSR_READ_4(sc, BWI_BUS_ADDR); /* Flush */ 996 CSR_WRITE_4(sc, BWI_BUS_DATA, 0); 997 CSR_READ_4(sc, BWI_BUS_DATA); /* Flush */ 998 999 if (BWI_REGWIN_EXIST(com)) { 1000 error = bwi_regwin_switch(sc, bus, NULL); 1001 if (error) 1002 return error; 1003 } 1004 } else if (bus->rw_rev >= 11) { 1005 /* 1006 * Enable memory read multiple 1007 */ 1008 CSR_SETBITS_4(sc, BWI_BUS_CONFIG, BWI_BUS_CONFIG_MRM); 1009 } 1010 } else { 1011 /* TODO:PCIE */ 1012 } 1013 1014 sc->sc_flags |= BWI_F_BUS_INITED; 1015 back: 1016 return bwi_regwin_switch(sc, old, NULL); 1017 } 1018 1019 static void 1020 bwi_get_card_flags(struct bwi_softc *sc) 1021 { 1022 #define PCI_VENDOR_APPLE 0x106b 1023 #define PCI_VENDOR_DELL 0x1028 1024 sc->sc_card_flags = bwi_read_sprom(sc, BWI_SPROM_CARD_FLAGS); 1025 if (sc->sc_card_flags == 0xffff) 1026 sc->sc_card_flags = 0; 1027 1028 if (sc->sc_pci_subvid == PCI_VENDOR_DELL && 1029 sc->sc_bbp_id == BWI_BBPID_BCM4301 && 1030 sc->sc_pci_revid == 0x74) 1031 sc->sc_card_flags |= BWI_CARD_F_BT_COEXIST; 1032 1033 if (sc->sc_pci_subvid == PCI_VENDOR_APPLE && 1034 sc->sc_pci_subdid == 0x4e && /* XXX */ 1035 sc->sc_pci_revid > 0x40) 1036 sc->sc_card_flags |= BWI_CARD_F_PA_GPIO9; 1037 1038 DPRINTF(sc, BWI_DBG_ATTACH, "card flags 0x%04x\n", sc->sc_card_flags); 1039 #undef PCI_VENDOR_DELL 1040 #undef PCI_VENDOR_APPLE 1041 } 1042 1043 static void 1044 bwi_get_eaddr(struct bwi_softc *sc, uint16_t eaddr_ofs, uint8_t *eaddr) 1045 { 1046 int i; 1047 1048 for (i = 0; i < 3; ++i) { 1049 *((uint16_t *)eaddr + i) = 1050 htobe16(bwi_read_sprom(sc, eaddr_ofs + 2 * i)); 1051 } 1052 } 1053 1054 static void 1055 bwi_get_clock_freq(struct bwi_softc *sc, struct bwi_clock_freq *freq) 1056 { 1057 struct bwi_regwin *com; 1058 uint32_t val; 1059 u_int div; 1060 int src; 1061 1062 bzero(freq, sizeof(*freq)); 1063 com = &sc->sc_com_regwin; 1064 1065 KASSERT(BWI_REGWIN_EXIST(com), ("regwin does not exist")); 1066 KASSERT(sc->sc_cur_regwin == com, ("wrong regwin")); 1067 KASSERT(sc->sc_cap & BWI_CAP_CLKMODE, ("wrong clock mode")); 1068 1069 /* 1070 * Calculate clock frequency 1071 */ 1072 src = -1; 1073 div = 0; 1074 if (com->rw_rev < 6) { 1075 val = pci_read_config(sc->sc_dev, BWI_PCIR_GPIO_OUT, 4); 1076 if (val & BWI_PCIM_GPIO_OUT_CLKSRC) { 1077 src = BWI_CLKSRC_PCI; 1078 div = 64; 1079 } else { 1080 src = BWI_CLKSRC_CS_OSC; 1081 div = 32; 1082 } 1083 } else if (com->rw_rev < 10) { 1084 val = CSR_READ_4(sc, BWI_CLOCK_CTRL); 1085 1086 src = __SHIFTOUT(val, BWI_CLOCK_CTRL_CLKSRC); 1087 if (src == BWI_CLKSRC_LP_OSC) { 1088 div = 1; 1089 } else { 1090 div = (__SHIFTOUT(val, BWI_CLOCK_CTRL_FDIV) + 1) << 2; 1091 1092 /* Unknown source */ 1093 if (src >= BWI_CLKSRC_MAX) 1094 src = BWI_CLKSRC_CS_OSC; 1095 } 1096 } else { 1097 val = CSR_READ_4(sc, BWI_CLOCK_INFO); 1098 1099 src = BWI_CLKSRC_CS_OSC; 1100 div = (__SHIFTOUT(val, BWI_CLOCK_INFO_FDIV) + 1) << 2; 1101 } 1102 1103 KASSERT(src >= 0 && src < BWI_CLKSRC_MAX, ("bad src %d", src)); 1104 KASSERT(div != 0, ("div zero")); 1105 1106 DPRINTF(sc, BWI_DBG_ATTACH, "clksrc %s\n", 1107 src == BWI_CLKSRC_PCI ? "PCI" : 1108 (src == BWI_CLKSRC_LP_OSC ? "LP_OSC" : "CS_OSC")); 1109 1110 freq->clkfreq_min = bwi_clkfreq[src].freq_min / div; 1111 freq->clkfreq_max = bwi_clkfreq[src].freq_max / div; 1112 1113 DPRINTF(sc, BWI_DBG_ATTACH, "clkfreq min %u, max %u\n", 1114 freq->clkfreq_min, freq->clkfreq_max); 1115 } 1116 1117 static int 1118 bwi_set_clock_mode(struct bwi_softc *sc, enum bwi_clock_mode clk_mode) 1119 { 1120 struct bwi_regwin *old, *com; 1121 uint32_t clk_ctrl, clk_src; 1122 int error, pwr_off = 0; 1123 1124 com = &sc->sc_com_regwin; 1125 if (!BWI_REGWIN_EXIST(com)) 1126 return 0; 1127 1128 if (com->rw_rev >= 10 || com->rw_rev < 6) 1129 return 0; 1130 1131 /* 1132 * For common regwin whose rev is [6, 10), the chip 1133 * must be capable to change clock mode. 1134 */ 1135 if ((sc->sc_cap & BWI_CAP_CLKMODE) == 0) 1136 return 0; 1137 1138 error = bwi_regwin_switch(sc, com, &old); 1139 if (error) 1140 return error; 1141 1142 if (clk_mode == BWI_CLOCK_MODE_FAST) 1143 bwi_power_on(sc, 0); /* Don't turn on PLL */ 1144 1145 clk_ctrl = CSR_READ_4(sc, BWI_CLOCK_CTRL); 1146 clk_src = __SHIFTOUT(clk_ctrl, BWI_CLOCK_CTRL_CLKSRC); 1147 1148 switch (clk_mode) { 1149 case BWI_CLOCK_MODE_FAST: 1150 clk_ctrl &= ~BWI_CLOCK_CTRL_SLOW; 1151 clk_ctrl |= BWI_CLOCK_CTRL_IGNPLL; 1152 break; 1153 case BWI_CLOCK_MODE_SLOW: 1154 clk_ctrl |= BWI_CLOCK_CTRL_SLOW; 1155 break; 1156 case BWI_CLOCK_MODE_DYN: 1157 clk_ctrl &= ~(BWI_CLOCK_CTRL_SLOW | 1158 BWI_CLOCK_CTRL_IGNPLL | 1159 BWI_CLOCK_CTRL_NODYN); 1160 if (clk_src != BWI_CLKSRC_CS_OSC) { 1161 clk_ctrl |= BWI_CLOCK_CTRL_NODYN; 1162 pwr_off = 1; 1163 } 1164 break; 1165 } 1166 CSR_WRITE_4(sc, BWI_CLOCK_CTRL, clk_ctrl); 1167 1168 if (pwr_off) 1169 bwi_power_off(sc, 0); /* Leave PLL as it is */ 1170 1171 return bwi_regwin_switch(sc, old, NULL); 1172 } 1173 1174 static int 1175 bwi_set_clock_delay(struct bwi_softc *sc) 1176 { 1177 struct bwi_regwin *old, *com; 1178 int error; 1179 1180 com = &sc->sc_com_regwin; 1181 if (!BWI_REGWIN_EXIST(com)) 1182 return 0; 1183 1184 error = bwi_regwin_switch(sc, com, &old); 1185 if (error) 1186 return error; 1187 1188 if (sc->sc_bbp_id == BWI_BBPID_BCM4321) { 1189 if (sc->sc_bbp_rev == 0) 1190 CSR_WRITE_4(sc, BWI_CONTROL, BWI_CONTROL_MAGIC0); 1191 else if (sc->sc_bbp_rev == 1) 1192 CSR_WRITE_4(sc, BWI_CONTROL, BWI_CONTROL_MAGIC1); 1193 } 1194 1195 if (sc->sc_cap & BWI_CAP_CLKMODE) { 1196 if (com->rw_rev >= 10) { 1197 CSR_FILT_SETBITS_4(sc, BWI_CLOCK_INFO, 0xffff, 0x40000); 1198 } else { 1199 struct bwi_clock_freq freq; 1200 1201 bwi_get_clock_freq(sc, &freq); 1202 CSR_WRITE_4(sc, BWI_PLL_ON_DELAY, 1203 howmany(freq.clkfreq_max * 150, 1000000)); 1204 CSR_WRITE_4(sc, BWI_FREQ_SEL_DELAY, 1205 howmany(freq.clkfreq_max * 15, 1000000)); 1206 } 1207 } 1208 1209 return bwi_regwin_switch(sc, old, NULL); 1210 } 1211 1212 static void 1213 bwi_init(void *xsc) 1214 { 1215 struct bwi_softc *sc = xsc; 1216 struct ifnet *ifp = sc->sc_ifp; 1217 struct ieee80211com *ic = ifp->if_l2com; 1218 1219 BWI_LOCK(sc); 1220 bwi_init_statechg(sc, 1); 1221 BWI_UNLOCK(sc); 1222 1223 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1224 ieee80211_start_all(ic); /* start all vap's */ 1225 } 1226 1227 static void 1228 bwi_init_statechg(struct bwi_softc *sc, int statechg) 1229 { 1230 struct ifnet *ifp = sc->sc_ifp; 1231 struct bwi_mac *mac; 1232 int error; 1233 1234 bwi_stop_locked(sc, statechg); 1235 1236 bwi_bbp_power_on(sc, BWI_CLOCK_MODE_FAST); 1237 1238 /* TODO: 2 MAC */ 1239 1240 mac = &sc->sc_mac[0]; 1241 error = bwi_regwin_switch(sc, &mac->mac_regwin, NULL); 1242 if (error) { 1243 if_printf(ifp, "%s: error %d on regwin switch\n", 1244 __func__, error); 1245 goto bad; 1246 } 1247 error = bwi_mac_init(mac); 1248 if (error) { 1249 if_printf(ifp, "%s: error %d on MAC init\n", __func__, error); 1250 goto bad; 1251 } 1252 1253 bwi_bbp_power_on(sc, BWI_CLOCK_MODE_DYN); 1254 1255 bwi_set_bssid(sc, bwi_zero_addr); /* Clear BSSID */ 1256 bwi_set_addr_filter(sc, BWI_ADDR_FILTER_MYADDR, IF_LLADDR(ifp)); 1257 1258 bwi_mac_reset_hwkeys(mac); 1259 1260 if ((mac->mac_flags & BWI_MAC_F_HAS_TXSTATS) == 0) { 1261 int i; 1262 1263 #define NRETRY 1000 1264 /* 1265 * Drain any possible pending TX status 1266 */ 1267 for (i = 0; i < NRETRY; ++i) { 1268 if ((CSR_READ_4(sc, BWI_TXSTATUS0) & 1269 BWI_TXSTATUS0_VALID) == 0) 1270 break; 1271 CSR_READ_4(sc, BWI_TXSTATUS1); 1272 } 1273 if (i == NRETRY) 1274 if_printf(ifp, "%s: can't drain TX status\n", __func__); 1275 #undef NRETRY 1276 } 1277 1278 if (mac->mac_phy.phy_mode == IEEE80211_MODE_11G) 1279 bwi_mac_updateslot(mac, 1); 1280 1281 /* Start MAC */ 1282 error = bwi_mac_start(mac); 1283 if (error) { 1284 if_printf(ifp, "%s: error %d starting MAC\n", __func__, error); 1285 goto bad; 1286 } 1287 1288 /* Clear stop flag before enabling interrupt */ 1289 sc->sc_flags &= ~BWI_F_STOP; 1290 1291 ifp->if_drv_flags |= IFF_DRV_RUNNING; 1292 callout_reset(&sc->sc_watchdog_timer, hz, bwi_watchdog, sc); 1293 1294 /* Enable intrs */ 1295 bwi_enable_intrs(sc, BWI_INIT_INTRS); 1296 return; 1297 bad: 1298 bwi_stop_locked(sc, 1); 1299 } 1300 1301 static int 1302 bwi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1303 { 1304 #define IS_RUNNING(ifp) \ 1305 ((ifp->if_flags & IFF_UP) && (ifp->if_drv_flags & IFF_DRV_RUNNING)) 1306 struct bwi_softc *sc = ifp->if_softc; 1307 struct ieee80211com *ic = ifp->if_l2com; 1308 struct ifreq *ifr = (struct ifreq *) data; 1309 int error = 0, startall = 0; 1310 1311 switch (cmd) { 1312 case SIOCSIFFLAGS: 1313 BWI_LOCK(sc); 1314 if (IS_RUNNING(ifp)) { 1315 struct bwi_mac *mac; 1316 int promisc = -1; 1317 1318 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 1319 ("current regwin type %d", 1320 sc->sc_cur_regwin->rw_type)); 1321 mac = (struct bwi_mac *)sc->sc_cur_regwin; 1322 1323 if ((ifp->if_flags & IFF_PROMISC) && 1324 (sc->sc_flags & BWI_F_PROMISC) == 0) { 1325 promisc = 1; 1326 sc->sc_flags |= BWI_F_PROMISC; 1327 } else if ((ifp->if_flags & IFF_PROMISC) == 0 && 1328 (sc->sc_flags & BWI_F_PROMISC)) { 1329 promisc = 0; 1330 sc->sc_flags &= ~BWI_F_PROMISC; 1331 } 1332 1333 if (promisc >= 0) 1334 bwi_mac_set_promisc(mac, promisc); 1335 } 1336 1337 if (ifp->if_flags & IFF_UP) { 1338 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1339 bwi_init_statechg(sc, 1); 1340 startall = 1; 1341 } 1342 } else { 1343 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1344 bwi_stop_locked(sc, 1); 1345 } 1346 BWI_UNLOCK(sc); 1347 if (startall) 1348 ieee80211_start_all(ic); 1349 break; 1350 case SIOCGIFMEDIA: 1351 error = ifmedia_ioctl(ifp, ifr, &ic->ic_media, cmd); 1352 break; 1353 case SIOCGIFADDR: 1354 error = ether_ioctl(ifp, cmd, data); 1355 break; 1356 default: 1357 error = EINVAL; 1358 break; 1359 } 1360 return error; 1361 #undef IS_RUNNING 1362 } 1363 1364 static void 1365 bwi_start(struct ifnet *ifp) 1366 { 1367 struct bwi_softc *sc = ifp->if_softc; 1368 1369 BWI_LOCK(sc); 1370 bwi_start_locked(ifp); 1371 BWI_UNLOCK(sc); 1372 } 1373 1374 static void 1375 bwi_start_locked(struct ifnet *ifp) 1376 { 1377 struct bwi_softc *sc = ifp->if_softc; 1378 struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[BWI_TX_DATA_RING]; 1379 struct ieee80211_frame *wh; 1380 struct ieee80211_node *ni; 1381 struct ieee80211_key *k; 1382 struct mbuf *m; 1383 int trans, idx; 1384 1385 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 1386 return; 1387 1388 trans = 0; 1389 idx = tbd->tbd_idx; 1390 1391 while (tbd->tbd_buf[idx].tb_mbuf == NULL) { 1392 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); /* XXX: LOCK */ 1393 if (m == NULL) 1394 break; 1395 1396 ni = (struct ieee80211_node *) m->m_pkthdr.rcvif; 1397 wh = mtod(m, struct ieee80211_frame *); 1398 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1399 k = ieee80211_crypto_encap(ni, m); 1400 if (k == NULL) { 1401 ieee80211_free_node(ni); 1402 m_freem(m); 1403 ifp->if_oerrors++; 1404 continue; 1405 } 1406 } 1407 wh = NULL; /* Catch any invalid use */ 1408 1409 if (bwi_encap(sc, idx, m, ni) != 0) { 1410 /* 'm' is freed in bwi_encap() if we reach here */ 1411 if (ni != NULL) 1412 ieee80211_free_node(ni); 1413 ifp->if_oerrors++; 1414 continue; 1415 } 1416 1417 trans = 1; 1418 tbd->tbd_used++; 1419 idx = (idx + 1) % BWI_TX_NDESC; 1420 1421 ifp->if_opackets++; 1422 1423 if (tbd->tbd_used + BWI_TX_NSPRDESC >= BWI_TX_NDESC) { 1424 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1425 break; 1426 } 1427 } 1428 tbd->tbd_idx = idx; 1429 1430 if (trans) 1431 sc->sc_tx_timer = 5; 1432 } 1433 1434 static int 1435 bwi_raw_xmit(struct ieee80211_node *ni, struct mbuf *m, 1436 const struct ieee80211_bpf_params *params) 1437 { 1438 struct ieee80211com *ic = ni->ni_ic; 1439 struct ifnet *ifp = ic->ic_ifp; 1440 struct bwi_softc *sc = ifp->if_softc; 1441 /* XXX wme? */ 1442 struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[BWI_TX_DATA_RING]; 1443 int idx, error; 1444 1445 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1446 ieee80211_free_node(ni); 1447 m_freem(m); 1448 return ENETDOWN; 1449 } 1450 1451 BWI_LOCK(sc); 1452 idx = tbd->tbd_idx; 1453 KASSERT(tbd->tbd_buf[idx].tb_mbuf == NULL, ("slot %d not empty", idx)); 1454 if (params == NULL) { 1455 /* 1456 * Legacy path; interpret frame contents to decide 1457 * precisely how to send the frame. 1458 */ 1459 error = bwi_encap(sc, idx, m, ni); 1460 } else { 1461 /* 1462 * Caller supplied explicit parameters to use in 1463 * sending the frame. 1464 */ 1465 error = bwi_encap_raw(sc, idx, m, ni, params); 1466 } 1467 if (error == 0) { 1468 ifp->if_opackets++; 1469 if (++tbd->tbd_used + BWI_TX_NSPRDESC >= BWI_TX_NDESC) 1470 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1471 tbd->tbd_idx = (idx + 1) % BWI_TX_NDESC; 1472 sc->sc_tx_timer = 5; 1473 } else { 1474 /* NB: m is reclaimed on encap failure */ 1475 ieee80211_free_node(ni); 1476 ifp->if_oerrors++; 1477 } 1478 BWI_UNLOCK(sc); 1479 return error; 1480 } 1481 1482 static void 1483 bwi_watchdog(void *arg) 1484 { 1485 struct bwi_softc *sc; 1486 struct ifnet *ifp; 1487 1488 sc = arg; 1489 ifp = sc->sc_ifp; 1490 BWI_ASSERT_LOCKED(sc); 1491 if (sc->sc_tx_timer != 0 && --sc->sc_tx_timer == 0) { 1492 if_printf(ifp, "watchdog timeout\n"); 1493 ifp->if_oerrors++; 1494 taskqueue_enqueue(sc->sc_tq, &sc->sc_restart_task); 1495 } 1496 callout_reset(&sc->sc_watchdog_timer, hz, bwi_watchdog, sc); 1497 } 1498 1499 static void 1500 bwi_stop(struct bwi_softc *sc, int statechg) 1501 { 1502 BWI_LOCK(sc); 1503 bwi_stop_locked(sc, statechg); 1504 BWI_UNLOCK(sc); 1505 } 1506 1507 static void 1508 bwi_stop_locked(struct bwi_softc *sc, int statechg) 1509 { 1510 struct ifnet *ifp = sc->sc_ifp; 1511 struct bwi_mac *mac; 1512 int i, error, pwr_off = 0; 1513 1514 BWI_ASSERT_LOCKED(sc); 1515 1516 callout_stop(&sc->sc_calib_ch); 1517 callout_stop(&sc->sc_led_blink_ch); 1518 sc->sc_led_blinking = 0; 1519 sc->sc_flags |= BWI_F_STOP; 1520 1521 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1522 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 1523 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 1524 mac = (struct bwi_mac *)sc->sc_cur_regwin; 1525 1526 bwi_disable_intrs(sc, BWI_ALL_INTRS); 1527 CSR_READ_4(sc, BWI_MAC_INTR_MASK); 1528 bwi_mac_stop(mac); 1529 } 1530 1531 for (i = 0; i < sc->sc_nmac; ++i) { 1532 struct bwi_regwin *old_rw; 1533 1534 mac = &sc->sc_mac[i]; 1535 if ((mac->mac_flags & BWI_MAC_F_INITED) == 0) 1536 continue; 1537 1538 error = bwi_regwin_switch(sc, &mac->mac_regwin, &old_rw); 1539 if (error) 1540 continue; 1541 1542 bwi_mac_shutdown(mac); 1543 pwr_off = 1; 1544 1545 bwi_regwin_switch(sc, old_rw, NULL); 1546 } 1547 1548 if (pwr_off) 1549 bwi_bbp_power_off(sc); 1550 1551 sc->sc_tx_timer = 0; 1552 callout_stop(&sc->sc_watchdog_timer); 1553 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 1554 } 1555 1556 void 1557 bwi_intr(void *xsc) 1558 { 1559 struct bwi_softc *sc = xsc; 1560 struct ifnet *ifp = sc->sc_ifp; 1561 struct bwi_mac *mac; 1562 uint32_t intr_status; 1563 uint32_t txrx_intr_status[BWI_TXRX_NRING]; 1564 int i, txrx_error, tx = 0, rx_data = -1; 1565 1566 BWI_LOCK(sc); 1567 1568 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || 1569 (sc->sc_flags & BWI_F_STOP)) { 1570 BWI_UNLOCK(sc); 1571 return; 1572 } 1573 /* 1574 * Get interrupt status 1575 */ 1576 intr_status = CSR_READ_4(sc, BWI_MAC_INTR_STATUS); 1577 if (intr_status == 0xffffffff) { /* Not for us */ 1578 BWI_UNLOCK(sc); 1579 return; 1580 } 1581 1582 DPRINTF(sc, BWI_DBG_INTR, "intr status 0x%08x\n", intr_status); 1583 1584 intr_status &= CSR_READ_4(sc, BWI_MAC_INTR_MASK); 1585 if (intr_status == 0) { /* Nothing is interesting */ 1586 BWI_UNLOCK(sc); 1587 return; 1588 } 1589 1590 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 1591 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 1592 mac = (struct bwi_mac *)sc->sc_cur_regwin; 1593 1594 txrx_error = 0; 1595 DPRINTF(sc, BWI_DBG_INTR, "%s\n", "TX/RX intr"); 1596 for (i = 0; i < BWI_TXRX_NRING; ++i) { 1597 uint32_t mask; 1598 1599 if (BWI_TXRX_IS_RX(i)) 1600 mask = BWI_TXRX_RX_INTRS; 1601 else 1602 mask = BWI_TXRX_TX_INTRS; 1603 1604 txrx_intr_status[i] = 1605 CSR_READ_4(sc, BWI_TXRX_INTR_STATUS(i)) & mask; 1606 1607 _DPRINTF(sc, BWI_DBG_INTR, ", %d 0x%08x", 1608 i, txrx_intr_status[i]); 1609 1610 if (txrx_intr_status[i] & BWI_TXRX_INTR_ERROR) { 1611 if_printf(ifp, 1612 "%s: intr fatal TX/RX (%d) error 0x%08x\n", 1613 __func__, i, txrx_intr_status[i]); 1614 txrx_error = 1; 1615 } 1616 } 1617 _DPRINTF(sc, BWI_DBG_INTR, "%s\n", ""); 1618 1619 /* 1620 * Acknowledge interrupt 1621 */ 1622 CSR_WRITE_4(sc, BWI_MAC_INTR_STATUS, intr_status); 1623 1624 for (i = 0; i < BWI_TXRX_NRING; ++i) 1625 CSR_WRITE_4(sc, BWI_TXRX_INTR_STATUS(i), txrx_intr_status[i]); 1626 1627 /* Disable all interrupts */ 1628 bwi_disable_intrs(sc, BWI_ALL_INTRS); 1629 1630 /* 1631 * http://bcm-specs.sipsolutions.net/Interrupts 1632 * Says for this bit (0x800): 1633 * "Fatal Error 1634 * 1635 * We got this one while testing things when by accident the 1636 * template ram wasn't set to big endian when it should have 1637 * been after writing the initial values. It keeps on being 1638 * triggered, the only way to stop it seems to shut down the 1639 * chip." 1640 * 1641 * Suggesting that we should never get it and if we do we're not 1642 * feeding TX packets into the MAC correctly if we do... Apparently, 1643 * it is valid only on mac version 5 and higher, but I couldn't 1644 * find a reference for that... Since I see them from time to time 1645 * on my card, this suggests an error in the tx path still... 1646 */ 1647 if (intr_status & BWI_INTR_PHY_TXERR) { 1648 if (mac->mac_flags & BWI_MAC_F_PHYE_RESET) { 1649 if_printf(ifp, "%s: intr PHY TX error\n", __func__); 1650 taskqueue_enqueue(sc->sc_tq, &sc->sc_restart_task); 1651 BWI_UNLOCK(sc); 1652 return; 1653 } 1654 } 1655 1656 if (txrx_error) { 1657 /* TODO: reset device */ 1658 } 1659 1660 if (intr_status & BWI_INTR_TBTT) 1661 bwi_mac_config_ps(mac); 1662 1663 if (intr_status & BWI_INTR_EO_ATIM) 1664 if_printf(ifp, "EO_ATIM\n"); 1665 1666 if (intr_status & BWI_INTR_PMQ) { 1667 for (;;) { 1668 if ((CSR_READ_4(sc, BWI_MAC_PS_STATUS) & 0x8) == 0) 1669 break; 1670 } 1671 CSR_WRITE_2(sc, BWI_MAC_PS_STATUS, 0x2); 1672 } 1673 1674 if (intr_status & BWI_INTR_NOISE) 1675 if_printf(ifp, "intr noise\n"); 1676 1677 if (txrx_intr_status[0] & BWI_TXRX_INTR_RX) { 1678 rx_data = sc->sc_rxeof(sc); 1679 if (sc->sc_flags & BWI_F_STOP) { 1680 BWI_UNLOCK(sc); 1681 return; 1682 } 1683 } 1684 1685 if (txrx_intr_status[3] & BWI_TXRX_INTR_RX) { 1686 sc->sc_txeof_status(sc); 1687 tx = 1; 1688 } 1689 1690 if (intr_status & BWI_INTR_TX_DONE) { 1691 bwi_txeof(sc); 1692 tx = 1; 1693 } 1694 1695 /* Re-enable interrupts */ 1696 bwi_enable_intrs(sc, BWI_INIT_INTRS); 1697 1698 if (sc->sc_blink_led != NULL && sc->sc_led_blink) { 1699 int evt = BWI_LED_EVENT_NONE; 1700 1701 if (tx && rx_data > 0) { 1702 if (sc->sc_rx_rate > sc->sc_tx_rate) 1703 evt = BWI_LED_EVENT_RX; 1704 else 1705 evt = BWI_LED_EVENT_TX; 1706 } else if (tx) { 1707 evt = BWI_LED_EVENT_TX; 1708 } else if (rx_data > 0) { 1709 evt = BWI_LED_EVENT_RX; 1710 } else if (rx_data == 0) { 1711 evt = BWI_LED_EVENT_POLL; 1712 } 1713 1714 if (evt != BWI_LED_EVENT_NONE) 1715 bwi_led_event(sc, evt); 1716 } 1717 1718 BWI_UNLOCK(sc); 1719 } 1720 1721 static void 1722 bwi_scan_start(struct ieee80211com *ic) 1723 { 1724 struct bwi_softc *sc = ic->ic_ifp->if_softc; 1725 1726 BWI_LOCK(sc); 1727 /* Enable MAC beacon promiscuity */ 1728 CSR_SETBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_PASS_BCN); 1729 BWI_UNLOCK(sc); 1730 } 1731 1732 static void 1733 bwi_set_channel(struct ieee80211com *ic) 1734 { 1735 struct bwi_softc *sc = ic->ic_ifp->if_softc; 1736 struct ieee80211_channel *c = ic->ic_curchan; 1737 struct bwi_mac *mac; 1738 1739 BWI_LOCK(sc); 1740 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 1741 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 1742 mac = (struct bwi_mac *)sc->sc_cur_regwin; 1743 bwi_rf_set_chan(mac, ieee80211_chan2ieee(ic, c), 0); 1744 1745 sc->sc_rates = ieee80211_get_ratetable(c); 1746 1747 /* 1748 * Setup radio tap channel freq and flags 1749 */ 1750 sc->sc_tx_th.wt_chan_freq = sc->sc_rx_th.wr_chan_freq = 1751 htole16(c->ic_freq); 1752 sc->sc_tx_th.wt_chan_flags = sc->sc_rx_th.wr_chan_flags = 1753 htole16(c->ic_flags & 0xffff); 1754 1755 BWI_UNLOCK(sc); 1756 } 1757 1758 static void 1759 bwi_scan_end(struct ieee80211com *ic) 1760 { 1761 struct bwi_softc *sc = ic->ic_ifp->if_softc; 1762 1763 BWI_LOCK(sc); 1764 CSR_CLRBITS_4(sc, BWI_MAC_STATUS, BWI_MAC_STATUS_PASS_BCN); 1765 BWI_UNLOCK(sc); 1766 } 1767 1768 static int 1769 bwi_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg) 1770 { 1771 struct bwi_vap *bvp = BWI_VAP(vap); 1772 struct ieee80211com *ic= vap->iv_ic; 1773 struct ifnet *ifp = ic->ic_ifp; 1774 enum ieee80211_state ostate = vap->iv_state; 1775 struct bwi_softc *sc = ifp->if_softc; 1776 struct bwi_mac *mac; 1777 int error; 1778 1779 BWI_LOCK(sc); 1780 1781 callout_stop(&sc->sc_calib_ch); 1782 1783 if (nstate == IEEE80211_S_INIT) 1784 sc->sc_txpwrcb_type = BWI_TXPWR_INIT; 1785 1786 bwi_led_newstate(sc, nstate); 1787 1788 error = bvp->bv_newstate(vap, nstate, arg); 1789 if (error != 0) 1790 goto back; 1791 1792 /* 1793 * Clear the BSSID when we stop a STA 1794 */ 1795 if (vap->iv_opmode == IEEE80211_M_STA) { 1796 if (ostate == IEEE80211_S_RUN && nstate != IEEE80211_S_RUN) { 1797 /* 1798 * Clear out the BSSID. If we reassociate to 1799 * the same AP, this will reinialize things 1800 * correctly... 1801 */ 1802 if (ic->ic_opmode == IEEE80211_M_STA && 1803 !(sc->sc_flags & BWI_F_STOP)) 1804 bwi_set_bssid(sc, bwi_zero_addr); 1805 } 1806 } 1807 1808 if (vap->iv_opmode == IEEE80211_M_MONITOR) { 1809 /* Nothing to do */ 1810 } else if (nstate == IEEE80211_S_RUN) { 1811 bwi_set_bssid(sc, vap->iv_bss->ni_bssid); 1812 1813 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 1814 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 1815 mac = (struct bwi_mac *)sc->sc_cur_regwin; 1816 1817 /* Initial TX power calibration */ 1818 bwi_mac_calibrate_txpower(mac, BWI_TXPWR_INIT); 1819 #ifdef notyet 1820 sc->sc_txpwrcb_type = BWI_TXPWR_FORCE; 1821 #else 1822 sc->sc_txpwrcb_type = BWI_TXPWR_CALIB; 1823 #endif 1824 1825 callout_reset(&sc->sc_calib_ch, hz, bwi_calibrate, sc); 1826 } 1827 back: 1828 BWI_UNLOCK(sc); 1829 1830 return error; 1831 } 1832 1833 static int 1834 bwi_media_change(struct ifnet *ifp) 1835 { 1836 int error = ieee80211_media_change(ifp); 1837 /* NB: only the fixed rate can change and that doesn't need a reset */ 1838 return (error == ENETRESET ? 0 : error); 1839 } 1840 1841 static int 1842 bwi_dma_alloc(struct bwi_softc *sc) 1843 { 1844 int error, i, has_txstats; 1845 bus_addr_t lowaddr = 0; 1846 bus_size_t tx_ring_sz, rx_ring_sz, desc_sz = 0; 1847 uint32_t txrx_ctrl_step = 0; 1848 1849 has_txstats = 0; 1850 for (i = 0; i < sc->sc_nmac; ++i) { 1851 if (sc->sc_mac[i].mac_flags & BWI_MAC_F_HAS_TXSTATS) { 1852 has_txstats = 1; 1853 break; 1854 } 1855 } 1856 1857 switch (sc->sc_bus_space) { 1858 case BWI_BUS_SPACE_30BIT: 1859 case BWI_BUS_SPACE_32BIT: 1860 if (sc->sc_bus_space == BWI_BUS_SPACE_30BIT) 1861 lowaddr = BWI_BUS_SPACE_MAXADDR; 1862 else 1863 lowaddr = BUS_SPACE_MAXADDR_32BIT; 1864 desc_sz = sizeof(struct bwi_desc32); 1865 txrx_ctrl_step = 0x20; 1866 1867 sc->sc_init_tx_ring = bwi_init_tx_ring32; 1868 sc->sc_free_tx_ring = bwi_free_tx_ring32; 1869 sc->sc_init_rx_ring = bwi_init_rx_ring32; 1870 sc->sc_free_rx_ring = bwi_free_rx_ring32; 1871 sc->sc_setup_rxdesc = bwi_setup_rx_desc32; 1872 sc->sc_setup_txdesc = bwi_setup_tx_desc32; 1873 sc->sc_rxeof = bwi_rxeof32; 1874 sc->sc_start_tx = bwi_start_tx32; 1875 if (has_txstats) { 1876 sc->sc_init_txstats = bwi_init_txstats32; 1877 sc->sc_free_txstats = bwi_free_txstats32; 1878 sc->sc_txeof_status = bwi_txeof_status32; 1879 } 1880 break; 1881 1882 case BWI_BUS_SPACE_64BIT: 1883 lowaddr = BUS_SPACE_MAXADDR; /* XXX */ 1884 desc_sz = sizeof(struct bwi_desc64); 1885 txrx_ctrl_step = 0x40; 1886 1887 sc->sc_init_tx_ring = bwi_init_tx_ring64; 1888 sc->sc_free_tx_ring = bwi_free_tx_ring64; 1889 sc->sc_init_rx_ring = bwi_init_rx_ring64; 1890 sc->sc_free_rx_ring = bwi_free_rx_ring64; 1891 sc->sc_setup_rxdesc = bwi_setup_rx_desc64; 1892 sc->sc_setup_txdesc = bwi_setup_tx_desc64; 1893 sc->sc_rxeof = bwi_rxeof64; 1894 sc->sc_start_tx = bwi_start_tx64; 1895 if (has_txstats) { 1896 sc->sc_init_txstats = bwi_init_txstats64; 1897 sc->sc_free_txstats = bwi_free_txstats64; 1898 sc->sc_txeof_status = bwi_txeof_status64; 1899 } 1900 break; 1901 } 1902 1903 KASSERT(lowaddr != 0, ("lowaddr zero")); 1904 KASSERT(desc_sz != 0, ("desc_sz zero")); 1905 KASSERT(txrx_ctrl_step != 0, ("txrx_ctrl_step zero")); 1906 1907 tx_ring_sz = roundup(desc_sz * BWI_TX_NDESC, BWI_RING_ALIGN); 1908 rx_ring_sz = roundup(desc_sz * BWI_RX_NDESC, BWI_RING_ALIGN); 1909 1910 /* 1911 * Create top level DMA tag 1912 */ 1913 error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), /* parent */ 1914 BWI_ALIGN, 0, /* alignment, bounds */ 1915 lowaddr, /* lowaddr */ 1916 BUS_SPACE_MAXADDR, /* highaddr */ 1917 NULL, NULL, /* filter, filterarg */ 1918 MAXBSIZE, /* maxsize */ 1919 BUS_SPACE_UNRESTRICTED, /* nsegments */ 1920 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1921 BUS_DMA_ALLOCNOW, /* flags */ 1922 NULL, NULL, /* lockfunc, lockarg */ 1923 &sc->sc_parent_dtag); 1924 if (error) { 1925 device_printf(sc->sc_dev, "can't create parent DMA tag\n"); 1926 return error; 1927 } 1928 1929 #define TXRX_CTRL(idx) (BWI_TXRX_CTRL_BASE + (idx) * txrx_ctrl_step) 1930 1931 /* 1932 * Create TX ring DMA stuffs 1933 */ 1934 error = bus_dma_tag_create(sc->sc_parent_dtag, 1935 BWI_RING_ALIGN, 0, 1936 BUS_SPACE_MAXADDR, 1937 BUS_SPACE_MAXADDR, 1938 NULL, NULL, 1939 tx_ring_sz, 1940 1, 1941 BUS_SPACE_MAXSIZE_32BIT, 1942 BUS_DMA_ALLOCNOW, 1943 NULL, NULL, 1944 &sc->sc_txring_dtag); 1945 if (error) { 1946 device_printf(sc->sc_dev, "can't create TX ring DMA tag\n"); 1947 return error; 1948 } 1949 1950 for (i = 0; i < BWI_TX_NRING; ++i) { 1951 error = bwi_dma_ring_alloc(sc, sc->sc_txring_dtag, 1952 &sc->sc_tx_rdata[i], tx_ring_sz, 1953 TXRX_CTRL(i)); 1954 if (error) { 1955 device_printf(sc->sc_dev, "%dth TX ring " 1956 "DMA alloc failed\n", i); 1957 return error; 1958 } 1959 } 1960 1961 /* 1962 * Create RX ring DMA stuffs 1963 */ 1964 error = bus_dma_tag_create(sc->sc_parent_dtag, 1965 BWI_RING_ALIGN, 0, 1966 BUS_SPACE_MAXADDR, 1967 BUS_SPACE_MAXADDR, 1968 NULL, NULL, 1969 rx_ring_sz, 1970 1, 1971 BUS_SPACE_MAXSIZE_32BIT, 1972 BUS_DMA_ALLOCNOW, 1973 NULL, NULL, 1974 &sc->sc_rxring_dtag); 1975 if (error) { 1976 device_printf(sc->sc_dev, "can't create RX ring DMA tag\n"); 1977 return error; 1978 } 1979 1980 error = bwi_dma_ring_alloc(sc, sc->sc_rxring_dtag, &sc->sc_rx_rdata, 1981 rx_ring_sz, TXRX_CTRL(0)); 1982 if (error) { 1983 device_printf(sc->sc_dev, "RX ring DMA alloc failed\n"); 1984 return error; 1985 } 1986 1987 if (has_txstats) { 1988 error = bwi_dma_txstats_alloc(sc, TXRX_CTRL(3), desc_sz); 1989 if (error) { 1990 device_printf(sc->sc_dev, 1991 "TX stats DMA alloc failed\n"); 1992 return error; 1993 } 1994 } 1995 1996 #undef TXRX_CTRL 1997 1998 return bwi_dma_mbuf_create(sc); 1999 } 2000 2001 static void 2002 bwi_dma_free(struct bwi_softc *sc) 2003 { 2004 if (sc->sc_txring_dtag != NULL) { 2005 int i; 2006 2007 for (i = 0; i < BWI_TX_NRING; ++i) { 2008 struct bwi_ring_data *rd = &sc->sc_tx_rdata[i]; 2009 2010 if (rd->rdata_desc != NULL) { 2011 bus_dmamap_unload(sc->sc_txring_dtag, 2012 rd->rdata_dmap); 2013 bus_dmamem_free(sc->sc_txring_dtag, 2014 rd->rdata_desc, 2015 rd->rdata_dmap); 2016 } 2017 } 2018 bus_dma_tag_destroy(sc->sc_txring_dtag); 2019 } 2020 2021 if (sc->sc_rxring_dtag != NULL) { 2022 struct bwi_ring_data *rd = &sc->sc_rx_rdata; 2023 2024 if (rd->rdata_desc != NULL) { 2025 bus_dmamap_unload(sc->sc_rxring_dtag, rd->rdata_dmap); 2026 bus_dmamem_free(sc->sc_rxring_dtag, rd->rdata_desc, 2027 rd->rdata_dmap); 2028 } 2029 bus_dma_tag_destroy(sc->sc_rxring_dtag); 2030 } 2031 2032 bwi_dma_txstats_free(sc); 2033 bwi_dma_mbuf_destroy(sc, BWI_TX_NRING, 1); 2034 2035 if (sc->sc_parent_dtag != NULL) 2036 bus_dma_tag_destroy(sc->sc_parent_dtag); 2037 } 2038 2039 static int 2040 bwi_dma_ring_alloc(struct bwi_softc *sc, bus_dma_tag_t dtag, 2041 struct bwi_ring_data *rd, bus_size_t size, 2042 uint32_t txrx_ctrl) 2043 { 2044 int error; 2045 2046 error = bus_dmamem_alloc(dtag, &rd->rdata_desc, 2047 BUS_DMA_WAITOK | BUS_DMA_ZERO, 2048 &rd->rdata_dmap); 2049 if (error) { 2050 device_printf(sc->sc_dev, "can't allocate DMA mem\n"); 2051 return error; 2052 } 2053 2054 error = bus_dmamap_load(dtag, rd->rdata_dmap, rd->rdata_desc, size, 2055 bwi_dma_ring_addr, &rd->rdata_paddr, 2056 BUS_DMA_NOWAIT); 2057 if (error) { 2058 device_printf(sc->sc_dev, "can't load DMA mem\n"); 2059 bus_dmamem_free(dtag, rd->rdata_desc, rd->rdata_dmap); 2060 rd->rdata_desc = NULL; 2061 return error; 2062 } 2063 2064 rd->rdata_txrx_ctrl = txrx_ctrl; 2065 return 0; 2066 } 2067 2068 static int 2069 bwi_dma_txstats_alloc(struct bwi_softc *sc, uint32_t ctrl_base, 2070 bus_size_t desc_sz) 2071 { 2072 struct bwi_txstats_data *st; 2073 bus_size_t dma_size; 2074 int error; 2075 2076 st = malloc(sizeof(*st), M_DEVBUF, M_NOWAIT | M_ZERO); 2077 if (st == NULL) { 2078 device_printf(sc->sc_dev, "can't allocate txstats data\n"); 2079 return ENOMEM; 2080 } 2081 sc->sc_txstats = st; 2082 2083 /* 2084 * Create TX stats descriptor DMA stuffs 2085 */ 2086 dma_size = roundup(desc_sz * BWI_TXSTATS_NDESC, BWI_RING_ALIGN); 2087 2088 error = bus_dma_tag_create(sc->sc_parent_dtag, 2089 BWI_RING_ALIGN, 2090 0, 2091 BUS_SPACE_MAXADDR, 2092 BUS_SPACE_MAXADDR, 2093 NULL, NULL, 2094 dma_size, 2095 1, 2096 BUS_SPACE_MAXSIZE_32BIT, 2097 BUS_DMA_ALLOCNOW, 2098 NULL, NULL, 2099 &st->stats_ring_dtag); 2100 if (error) { 2101 device_printf(sc->sc_dev, "can't create txstats ring " 2102 "DMA tag\n"); 2103 return error; 2104 } 2105 2106 error = bus_dmamem_alloc(st->stats_ring_dtag, &st->stats_ring, 2107 BUS_DMA_WAITOK | BUS_DMA_ZERO, 2108 &st->stats_ring_dmap); 2109 if (error) { 2110 device_printf(sc->sc_dev, "can't allocate txstats ring " 2111 "DMA mem\n"); 2112 bus_dma_tag_destroy(st->stats_ring_dtag); 2113 st->stats_ring_dtag = NULL; 2114 return error; 2115 } 2116 2117 error = bus_dmamap_load(st->stats_ring_dtag, st->stats_ring_dmap, 2118 st->stats_ring, dma_size, 2119 bwi_dma_ring_addr, &st->stats_ring_paddr, 2120 BUS_DMA_NOWAIT); 2121 if (error) { 2122 device_printf(sc->sc_dev, "can't load txstats ring DMA mem\n"); 2123 bus_dmamem_free(st->stats_ring_dtag, st->stats_ring, 2124 st->stats_ring_dmap); 2125 bus_dma_tag_destroy(st->stats_ring_dtag); 2126 st->stats_ring_dtag = NULL; 2127 return error; 2128 } 2129 2130 /* 2131 * Create TX stats DMA stuffs 2132 */ 2133 dma_size = roundup(sizeof(struct bwi_txstats) * BWI_TXSTATS_NDESC, 2134 BWI_ALIGN); 2135 2136 error = bus_dma_tag_create(sc->sc_parent_dtag, 2137 BWI_ALIGN, 2138 0, 2139 BUS_SPACE_MAXADDR, 2140 BUS_SPACE_MAXADDR, 2141 NULL, NULL, 2142 dma_size, 2143 1, 2144 BUS_SPACE_MAXSIZE_32BIT, 2145 BUS_DMA_ALLOCNOW, 2146 NULL, NULL, 2147 &st->stats_dtag); 2148 if (error) { 2149 device_printf(sc->sc_dev, "can't create txstats DMA tag\n"); 2150 return error; 2151 } 2152 2153 error = bus_dmamem_alloc(st->stats_dtag, (void **)&st->stats, 2154 BUS_DMA_WAITOK | BUS_DMA_ZERO, 2155 &st->stats_dmap); 2156 if (error) { 2157 device_printf(sc->sc_dev, "can't allocate txstats DMA mem\n"); 2158 bus_dma_tag_destroy(st->stats_dtag); 2159 st->stats_dtag = NULL; 2160 return error; 2161 } 2162 2163 error = bus_dmamap_load(st->stats_dtag, st->stats_dmap, st->stats, 2164 dma_size, bwi_dma_ring_addr, &st->stats_paddr, 2165 BUS_DMA_NOWAIT); 2166 if (error) { 2167 device_printf(sc->sc_dev, "can't load txstats DMA mem\n"); 2168 bus_dmamem_free(st->stats_dtag, st->stats, st->stats_dmap); 2169 bus_dma_tag_destroy(st->stats_dtag); 2170 st->stats_dtag = NULL; 2171 return error; 2172 } 2173 2174 st->stats_ctrl_base = ctrl_base; 2175 return 0; 2176 } 2177 2178 static void 2179 bwi_dma_txstats_free(struct bwi_softc *sc) 2180 { 2181 struct bwi_txstats_data *st; 2182 2183 if (sc->sc_txstats == NULL) 2184 return; 2185 st = sc->sc_txstats; 2186 2187 if (st->stats_ring_dtag != NULL) { 2188 bus_dmamap_unload(st->stats_ring_dtag, st->stats_ring_dmap); 2189 bus_dmamem_free(st->stats_ring_dtag, st->stats_ring, 2190 st->stats_ring_dmap); 2191 bus_dma_tag_destroy(st->stats_ring_dtag); 2192 } 2193 2194 if (st->stats_dtag != NULL) { 2195 bus_dmamap_unload(st->stats_dtag, st->stats_dmap); 2196 bus_dmamem_free(st->stats_dtag, st->stats, st->stats_dmap); 2197 bus_dma_tag_destroy(st->stats_dtag); 2198 } 2199 2200 free(st, M_DEVBUF); 2201 } 2202 2203 static void 2204 bwi_dma_ring_addr(void *arg, bus_dma_segment_t *seg, int nseg, int error) 2205 { 2206 KASSERT(nseg == 1, ("too many segments\n")); 2207 *((bus_addr_t *)arg) = seg->ds_addr; 2208 } 2209 2210 static int 2211 bwi_dma_mbuf_create(struct bwi_softc *sc) 2212 { 2213 struct bwi_rxbuf_data *rbd = &sc->sc_rx_bdata; 2214 int i, j, k, ntx, error; 2215 2216 /* 2217 * Create TX/RX mbuf DMA tag 2218 */ 2219 error = bus_dma_tag_create(sc->sc_parent_dtag, 2220 1, 2221 0, 2222 BUS_SPACE_MAXADDR, 2223 BUS_SPACE_MAXADDR, 2224 NULL, NULL, 2225 MCLBYTES, 2226 1, 2227 BUS_SPACE_MAXSIZE_32BIT, 2228 BUS_DMA_ALLOCNOW, 2229 NULL, NULL, 2230 &sc->sc_buf_dtag); 2231 if (error) { 2232 device_printf(sc->sc_dev, "can't create mbuf DMA tag\n"); 2233 return error; 2234 } 2235 2236 ntx = 0; 2237 2238 /* 2239 * Create TX mbuf DMA map 2240 */ 2241 for (i = 0; i < BWI_TX_NRING; ++i) { 2242 struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[i]; 2243 2244 for (j = 0; j < BWI_TX_NDESC; ++j) { 2245 error = bus_dmamap_create(sc->sc_buf_dtag, 0, 2246 &tbd->tbd_buf[j].tb_dmap); 2247 if (error) { 2248 device_printf(sc->sc_dev, "can't create " 2249 "%dth tbd, %dth DMA map\n", i, j); 2250 2251 ntx = i; 2252 for (k = 0; k < j; ++k) { 2253 bus_dmamap_destroy(sc->sc_buf_dtag, 2254 tbd->tbd_buf[k].tb_dmap); 2255 } 2256 goto fail; 2257 } 2258 } 2259 } 2260 ntx = BWI_TX_NRING; 2261 2262 /* 2263 * Create RX mbuf DMA map and a spare DMA map 2264 */ 2265 error = bus_dmamap_create(sc->sc_buf_dtag, 0, 2266 &rbd->rbd_tmp_dmap); 2267 if (error) { 2268 device_printf(sc->sc_dev, 2269 "can't create spare RX buf DMA map\n"); 2270 goto fail; 2271 } 2272 2273 for (j = 0; j < BWI_RX_NDESC; ++j) { 2274 error = bus_dmamap_create(sc->sc_buf_dtag, 0, 2275 &rbd->rbd_buf[j].rb_dmap); 2276 if (error) { 2277 device_printf(sc->sc_dev, "can't create %dth " 2278 "RX buf DMA map\n", j); 2279 2280 for (k = 0; k < j; ++k) { 2281 bus_dmamap_destroy(sc->sc_buf_dtag, 2282 rbd->rbd_buf[j].rb_dmap); 2283 } 2284 bus_dmamap_destroy(sc->sc_buf_dtag, 2285 rbd->rbd_tmp_dmap); 2286 goto fail; 2287 } 2288 } 2289 2290 return 0; 2291 fail: 2292 bwi_dma_mbuf_destroy(sc, ntx, 0); 2293 return error; 2294 } 2295 2296 static void 2297 bwi_dma_mbuf_destroy(struct bwi_softc *sc, int ntx, int nrx) 2298 { 2299 int i, j; 2300 2301 if (sc->sc_buf_dtag == NULL) 2302 return; 2303 2304 for (i = 0; i < ntx; ++i) { 2305 struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[i]; 2306 2307 for (j = 0; j < BWI_TX_NDESC; ++j) { 2308 struct bwi_txbuf *tb = &tbd->tbd_buf[j]; 2309 2310 if (tb->tb_mbuf != NULL) { 2311 bus_dmamap_unload(sc->sc_buf_dtag, 2312 tb->tb_dmap); 2313 m_freem(tb->tb_mbuf); 2314 } 2315 if (tb->tb_ni != NULL) 2316 ieee80211_free_node(tb->tb_ni); 2317 bus_dmamap_destroy(sc->sc_buf_dtag, tb->tb_dmap); 2318 } 2319 } 2320 2321 if (nrx) { 2322 struct bwi_rxbuf_data *rbd = &sc->sc_rx_bdata; 2323 2324 bus_dmamap_destroy(sc->sc_buf_dtag, rbd->rbd_tmp_dmap); 2325 for (j = 0; j < BWI_RX_NDESC; ++j) { 2326 struct bwi_rxbuf *rb = &rbd->rbd_buf[j]; 2327 2328 if (rb->rb_mbuf != NULL) { 2329 bus_dmamap_unload(sc->sc_buf_dtag, 2330 rb->rb_dmap); 2331 m_freem(rb->rb_mbuf); 2332 } 2333 bus_dmamap_destroy(sc->sc_buf_dtag, rb->rb_dmap); 2334 } 2335 } 2336 2337 bus_dma_tag_destroy(sc->sc_buf_dtag); 2338 sc->sc_buf_dtag = NULL; 2339 } 2340 2341 static void 2342 bwi_enable_intrs(struct bwi_softc *sc, uint32_t enable_intrs) 2343 { 2344 CSR_SETBITS_4(sc, BWI_MAC_INTR_MASK, enable_intrs); 2345 } 2346 2347 static void 2348 bwi_disable_intrs(struct bwi_softc *sc, uint32_t disable_intrs) 2349 { 2350 CSR_CLRBITS_4(sc, BWI_MAC_INTR_MASK, disable_intrs); 2351 } 2352 2353 static int 2354 bwi_init_tx_ring32(struct bwi_softc *sc, int ring_idx) 2355 { 2356 struct bwi_ring_data *rd; 2357 struct bwi_txbuf_data *tbd; 2358 uint32_t val, addr_hi, addr_lo; 2359 2360 KASSERT(ring_idx < BWI_TX_NRING, ("ring_idx %d", ring_idx)); 2361 rd = &sc->sc_tx_rdata[ring_idx]; 2362 tbd = &sc->sc_tx_bdata[ring_idx]; 2363 2364 tbd->tbd_idx = 0; 2365 tbd->tbd_used = 0; 2366 2367 bzero(rd->rdata_desc, sizeof(struct bwi_desc32) * BWI_TX_NDESC); 2368 bus_dmamap_sync(sc->sc_txring_dtag, rd->rdata_dmap, 2369 BUS_DMASYNC_PREWRITE); 2370 2371 addr_lo = __SHIFTOUT(rd->rdata_paddr, BWI_TXRX32_RINGINFO_ADDR_MASK); 2372 addr_hi = __SHIFTOUT(rd->rdata_paddr, BWI_TXRX32_RINGINFO_FUNC_MASK); 2373 2374 val = __SHIFTIN(addr_lo, BWI_TXRX32_RINGINFO_ADDR_MASK) | 2375 __SHIFTIN(BWI_TXRX32_RINGINFO_FUNC_TXRX, 2376 BWI_TXRX32_RINGINFO_FUNC_MASK); 2377 CSR_WRITE_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_RINGINFO, val); 2378 2379 val = __SHIFTIN(addr_hi, BWI_TXRX32_CTRL_ADDRHI_MASK) | 2380 BWI_TXRX32_CTRL_ENABLE; 2381 CSR_WRITE_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_CTRL, val); 2382 2383 return 0; 2384 } 2385 2386 static void 2387 bwi_init_rxdesc_ring32(struct bwi_softc *sc, uint32_t ctrl_base, 2388 bus_addr_t paddr, int hdr_size, int ndesc) 2389 { 2390 uint32_t val, addr_hi, addr_lo; 2391 2392 addr_lo = __SHIFTOUT(paddr, BWI_TXRX32_RINGINFO_ADDR_MASK); 2393 addr_hi = __SHIFTOUT(paddr, BWI_TXRX32_RINGINFO_FUNC_MASK); 2394 2395 val = __SHIFTIN(addr_lo, BWI_TXRX32_RINGINFO_ADDR_MASK) | 2396 __SHIFTIN(BWI_TXRX32_RINGINFO_FUNC_TXRX, 2397 BWI_TXRX32_RINGINFO_FUNC_MASK); 2398 CSR_WRITE_4(sc, ctrl_base + BWI_RX32_RINGINFO, val); 2399 2400 val = __SHIFTIN(hdr_size, BWI_RX32_CTRL_HDRSZ_MASK) | 2401 __SHIFTIN(addr_hi, BWI_TXRX32_CTRL_ADDRHI_MASK) | 2402 BWI_TXRX32_CTRL_ENABLE; 2403 CSR_WRITE_4(sc, ctrl_base + BWI_RX32_CTRL, val); 2404 2405 CSR_WRITE_4(sc, ctrl_base + BWI_RX32_INDEX, 2406 (ndesc - 1) * sizeof(struct bwi_desc32)); 2407 } 2408 2409 static int 2410 bwi_init_rx_ring32(struct bwi_softc *sc) 2411 { 2412 struct bwi_ring_data *rd = &sc->sc_rx_rdata; 2413 int i, error; 2414 2415 sc->sc_rx_bdata.rbd_idx = 0; 2416 2417 for (i = 0; i < BWI_RX_NDESC; ++i) { 2418 error = bwi_newbuf(sc, i, 1); 2419 if (error) { 2420 device_printf(sc->sc_dev, 2421 "can't allocate %dth RX buffer\n", i); 2422 return error; 2423 } 2424 } 2425 bus_dmamap_sync(sc->sc_rxring_dtag, rd->rdata_dmap, 2426 BUS_DMASYNC_PREWRITE); 2427 2428 bwi_init_rxdesc_ring32(sc, rd->rdata_txrx_ctrl, rd->rdata_paddr, 2429 sizeof(struct bwi_rxbuf_hdr), BWI_RX_NDESC); 2430 return 0; 2431 } 2432 2433 static int 2434 bwi_init_txstats32(struct bwi_softc *sc) 2435 { 2436 struct bwi_txstats_data *st = sc->sc_txstats; 2437 bus_addr_t stats_paddr; 2438 int i; 2439 2440 bzero(st->stats, BWI_TXSTATS_NDESC * sizeof(struct bwi_txstats)); 2441 bus_dmamap_sync(st->stats_dtag, st->stats_dmap, BUS_DMASYNC_PREWRITE); 2442 2443 st->stats_idx = 0; 2444 2445 stats_paddr = st->stats_paddr; 2446 for (i = 0; i < BWI_TXSTATS_NDESC; ++i) { 2447 bwi_setup_desc32(sc, st->stats_ring, BWI_TXSTATS_NDESC, i, 2448 stats_paddr, sizeof(struct bwi_txstats), 0); 2449 stats_paddr += sizeof(struct bwi_txstats); 2450 } 2451 bus_dmamap_sync(st->stats_ring_dtag, st->stats_ring_dmap, 2452 BUS_DMASYNC_PREWRITE); 2453 2454 bwi_init_rxdesc_ring32(sc, st->stats_ctrl_base, 2455 st->stats_ring_paddr, 0, BWI_TXSTATS_NDESC); 2456 return 0; 2457 } 2458 2459 static void 2460 bwi_setup_rx_desc32(struct bwi_softc *sc, int buf_idx, bus_addr_t paddr, 2461 int buf_len) 2462 { 2463 struct bwi_ring_data *rd = &sc->sc_rx_rdata; 2464 2465 KASSERT(buf_idx < BWI_RX_NDESC, ("buf_idx %d", buf_idx)); 2466 bwi_setup_desc32(sc, rd->rdata_desc, BWI_RX_NDESC, buf_idx, 2467 paddr, buf_len, 0); 2468 } 2469 2470 static void 2471 bwi_setup_tx_desc32(struct bwi_softc *sc, struct bwi_ring_data *rd, 2472 int buf_idx, bus_addr_t paddr, int buf_len) 2473 { 2474 KASSERT(buf_idx < BWI_TX_NDESC, ("buf_idx %d", buf_idx)); 2475 bwi_setup_desc32(sc, rd->rdata_desc, BWI_TX_NDESC, buf_idx, 2476 paddr, buf_len, 1); 2477 } 2478 2479 static int 2480 bwi_init_tx_ring64(struct bwi_softc *sc, int ring_idx) 2481 { 2482 /* TODO:64 */ 2483 return EOPNOTSUPP; 2484 } 2485 2486 static int 2487 bwi_init_rx_ring64(struct bwi_softc *sc) 2488 { 2489 /* TODO:64 */ 2490 return EOPNOTSUPP; 2491 } 2492 2493 static int 2494 bwi_init_txstats64(struct bwi_softc *sc) 2495 { 2496 /* TODO:64 */ 2497 return EOPNOTSUPP; 2498 } 2499 2500 static void 2501 bwi_setup_rx_desc64(struct bwi_softc *sc, int buf_idx, bus_addr_t paddr, 2502 int buf_len) 2503 { 2504 /* TODO:64 */ 2505 } 2506 2507 static void 2508 bwi_setup_tx_desc64(struct bwi_softc *sc, struct bwi_ring_data *rd, 2509 int buf_idx, bus_addr_t paddr, int buf_len) 2510 { 2511 /* TODO:64 */ 2512 } 2513 2514 static void 2515 bwi_dma_buf_addr(void *arg, bus_dma_segment_t *seg, int nseg, 2516 bus_size_t mapsz __unused, int error) 2517 { 2518 if (!error) { 2519 KASSERT(nseg == 1, ("too many segments(%d)\n", nseg)); 2520 *((bus_addr_t *)arg) = seg->ds_addr; 2521 } 2522 } 2523 2524 static int 2525 bwi_newbuf(struct bwi_softc *sc, int buf_idx, int init) 2526 { 2527 struct bwi_rxbuf_data *rbd = &sc->sc_rx_bdata; 2528 struct bwi_rxbuf *rxbuf = &rbd->rbd_buf[buf_idx]; 2529 struct bwi_rxbuf_hdr *hdr; 2530 bus_dmamap_t map; 2531 bus_addr_t paddr; 2532 struct mbuf *m; 2533 int error; 2534 2535 KASSERT(buf_idx < BWI_RX_NDESC, ("buf_idx %d", buf_idx)); 2536 2537 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 2538 if (m == NULL) { 2539 error = ENOBUFS; 2540 2541 /* 2542 * If the NIC is up and running, we need to: 2543 * - Clear RX buffer's header. 2544 * - Restore RX descriptor settings. 2545 */ 2546 if (init) 2547 return error; 2548 else 2549 goto back; 2550 } 2551 m->m_len = m->m_pkthdr.len = MCLBYTES; 2552 2553 /* 2554 * Try to load RX buf into temporary DMA map 2555 */ 2556 error = bus_dmamap_load_mbuf(sc->sc_buf_dtag, rbd->rbd_tmp_dmap, m, 2557 bwi_dma_buf_addr, &paddr, BUS_DMA_NOWAIT); 2558 if (error) { 2559 m_freem(m); 2560 2561 /* 2562 * See the comment above 2563 */ 2564 if (init) 2565 return error; 2566 else 2567 goto back; 2568 } 2569 2570 if (!init) 2571 bus_dmamap_unload(sc->sc_buf_dtag, rxbuf->rb_dmap); 2572 rxbuf->rb_mbuf = m; 2573 rxbuf->rb_paddr = paddr; 2574 2575 /* 2576 * Swap RX buf's DMA map with the loaded temporary one 2577 */ 2578 map = rxbuf->rb_dmap; 2579 rxbuf->rb_dmap = rbd->rbd_tmp_dmap; 2580 rbd->rbd_tmp_dmap = map; 2581 2582 back: 2583 /* 2584 * Clear RX buf header 2585 */ 2586 hdr = mtod(rxbuf->rb_mbuf, struct bwi_rxbuf_hdr *); 2587 bzero(hdr, sizeof(*hdr)); 2588 bus_dmamap_sync(sc->sc_buf_dtag, rxbuf->rb_dmap, BUS_DMASYNC_PREWRITE); 2589 2590 /* 2591 * Setup RX buf descriptor 2592 */ 2593 sc->sc_setup_rxdesc(sc, buf_idx, rxbuf->rb_paddr, 2594 rxbuf->rb_mbuf->m_len - sizeof(*hdr)); 2595 return error; 2596 } 2597 2598 static void 2599 bwi_set_addr_filter(struct bwi_softc *sc, uint16_t addr_ofs, 2600 const uint8_t *addr) 2601 { 2602 int i; 2603 2604 CSR_WRITE_2(sc, BWI_ADDR_FILTER_CTRL, 2605 BWI_ADDR_FILTER_CTRL_SET | addr_ofs); 2606 2607 for (i = 0; i < (IEEE80211_ADDR_LEN / 2); ++i) { 2608 uint16_t addr_val; 2609 2610 addr_val = (uint16_t)addr[i * 2] | 2611 (((uint16_t)addr[(i * 2) + 1]) << 8); 2612 CSR_WRITE_2(sc, BWI_ADDR_FILTER_DATA, addr_val); 2613 } 2614 } 2615 2616 static int 2617 bwi_rxeof(struct bwi_softc *sc, int end_idx) 2618 { 2619 struct bwi_ring_data *rd = &sc->sc_rx_rdata; 2620 struct bwi_rxbuf_data *rbd = &sc->sc_rx_bdata; 2621 struct ifnet *ifp = sc->sc_ifp; 2622 struct ieee80211com *ic = ifp->if_l2com; 2623 int idx, rx_data = 0; 2624 2625 idx = rbd->rbd_idx; 2626 while (idx != end_idx) { 2627 struct bwi_rxbuf *rb = &rbd->rbd_buf[idx]; 2628 struct bwi_rxbuf_hdr *hdr; 2629 struct ieee80211_frame_min *wh; 2630 struct ieee80211_node *ni; 2631 struct mbuf *m; 2632 const void *plcp; 2633 uint16_t flags2; 2634 int buflen, wh_ofs, hdr_extra, rssi, noise, type, rate; 2635 2636 m = rb->rb_mbuf; 2637 bus_dmamap_sync(sc->sc_buf_dtag, rb->rb_dmap, 2638 BUS_DMASYNC_POSTREAD); 2639 2640 if (bwi_newbuf(sc, idx, 0)) { 2641 ifp->if_ierrors++; 2642 goto next; 2643 } 2644 2645 hdr = mtod(m, struct bwi_rxbuf_hdr *); 2646 flags2 = le16toh(hdr->rxh_flags2); 2647 2648 hdr_extra = 0; 2649 if (flags2 & BWI_RXH_F2_TYPE2FRAME) 2650 hdr_extra = 2; 2651 wh_ofs = hdr_extra + 6; /* XXX magic number */ 2652 2653 buflen = le16toh(hdr->rxh_buflen); 2654 if (buflen < BWI_FRAME_MIN_LEN(wh_ofs)) { 2655 if_printf(ifp, "%s: zero length data, hdr_extra %d\n", 2656 __func__, hdr_extra); 2657 ifp->if_ierrors++; 2658 m_freem(m); 2659 goto next; 2660 } 2661 2662 plcp = ((const uint8_t *)(hdr + 1) + hdr_extra); 2663 rssi = bwi_calc_rssi(sc, hdr); 2664 noise = bwi_calc_noise(sc); 2665 2666 m->m_pkthdr.rcvif = ifp; 2667 m->m_len = m->m_pkthdr.len = buflen + sizeof(*hdr); 2668 m_adj(m, sizeof(*hdr) + wh_ofs); 2669 2670 if (htole16(hdr->rxh_flags1) & BWI_RXH_F1_OFDM) 2671 rate = bwi_ofdm_plcp2rate(plcp); 2672 else 2673 rate = bwi_ds_plcp2rate(plcp); 2674 2675 /* RX radio tap */ 2676 if (ieee80211_radiotap_active(ic)) 2677 bwi_rx_radiotap(sc, m, hdr, plcp, rate, rssi, noise); 2678 2679 m_adj(m, -IEEE80211_CRC_LEN); 2680 2681 BWI_UNLOCK(sc); 2682 2683 wh = mtod(m, struct ieee80211_frame_min *); 2684 ni = ieee80211_find_rxnode(ic, wh); 2685 if (ni != NULL) { 2686 type = ieee80211_input(ni, m, rssi - noise, noise); 2687 ieee80211_free_node(ni); 2688 } else 2689 type = ieee80211_input_all(ic, m, rssi - noise, noise); 2690 if (type == IEEE80211_FC0_TYPE_DATA) { 2691 rx_data = 1; 2692 sc->sc_rx_rate = rate; 2693 } 2694 2695 BWI_LOCK(sc); 2696 next: 2697 idx = (idx + 1) % BWI_RX_NDESC; 2698 2699 if (sc->sc_flags & BWI_F_STOP) { 2700 /* 2701 * Take the fast lane, don't do 2702 * any damage to softc 2703 */ 2704 return -1; 2705 } 2706 } 2707 2708 rbd->rbd_idx = idx; 2709 bus_dmamap_sync(sc->sc_rxring_dtag, rd->rdata_dmap, 2710 BUS_DMASYNC_PREWRITE); 2711 2712 return rx_data; 2713 } 2714 2715 static int 2716 bwi_rxeof32(struct bwi_softc *sc) 2717 { 2718 uint32_t val, rx_ctrl; 2719 int end_idx, rx_data; 2720 2721 rx_ctrl = sc->sc_rx_rdata.rdata_txrx_ctrl; 2722 2723 val = CSR_READ_4(sc, rx_ctrl + BWI_RX32_STATUS); 2724 end_idx = __SHIFTOUT(val, BWI_RX32_STATUS_INDEX_MASK) / 2725 sizeof(struct bwi_desc32); 2726 2727 rx_data = bwi_rxeof(sc, end_idx); 2728 if (rx_data >= 0) { 2729 CSR_WRITE_4(sc, rx_ctrl + BWI_RX32_INDEX, 2730 end_idx * sizeof(struct bwi_desc32)); 2731 } 2732 return rx_data; 2733 } 2734 2735 static int 2736 bwi_rxeof64(struct bwi_softc *sc) 2737 { 2738 /* TODO:64 */ 2739 return 0; 2740 } 2741 2742 static void 2743 bwi_reset_rx_ring32(struct bwi_softc *sc, uint32_t rx_ctrl) 2744 { 2745 int i; 2746 2747 CSR_WRITE_4(sc, rx_ctrl + BWI_RX32_CTRL, 0); 2748 2749 #define NRETRY 10 2750 2751 for (i = 0; i < NRETRY; ++i) { 2752 uint32_t status; 2753 2754 status = CSR_READ_4(sc, rx_ctrl + BWI_RX32_STATUS); 2755 if (__SHIFTOUT(status, BWI_RX32_STATUS_STATE_MASK) == 2756 BWI_RX32_STATUS_STATE_DISABLED) 2757 break; 2758 2759 DELAY(1000); 2760 } 2761 if (i == NRETRY) 2762 device_printf(sc->sc_dev, "reset rx ring timedout\n"); 2763 2764 #undef NRETRY 2765 2766 CSR_WRITE_4(sc, rx_ctrl + BWI_RX32_RINGINFO, 0); 2767 } 2768 2769 static void 2770 bwi_free_txstats32(struct bwi_softc *sc) 2771 { 2772 bwi_reset_rx_ring32(sc, sc->sc_txstats->stats_ctrl_base); 2773 } 2774 2775 static void 2776 bwi_free_rx_ring32(struct bwi_softc *sc) 2777 { 2778 struct bwi_ring_data *rd = &sc->sc_rx_rdata; 2779 struct bwi_rxbuf_data *rbd = &sc->sc_rx_bdata; 2780 int i; 2781 2782 bwi_reset_rx_ring32(sc, rd->rdata_txrx_ctrl); 2783 2784 for (i = 0; i < BWI_RX_NDESC; ++i) { 2785 struct bwi_rxbuf *rb = &rbd->rbd_buf[i]; 2786 2787 if (rb->rb_mbuf != NULL) { 2788 bus_dmamap_unload(sc->sc_buf_dtag, rb->rb_dmap); 2789 m_freem(rb->rb_mbuf); 2790 rb->rb_mbuf = NULL; 2791 } 2792 } 2793 } 2794 2795 static void 2796 bwi_free_tx_ring32(struct bwi_softc *sc, int ring_idx) 2797 { 2798 struct bwi_ring_data *rd; 2799 struct bwi_txbuf_data *tbd; 2800 struct ifnet *ifp = sc->sc_ifp; 2801 uint32_t state, val; 2802 int i; 2803 2804 KASSERT(ring_idx < BWI_TX_NRING, ("ring_idx %d", ring_idx)); 2805 rd = &sc->sc_tx_rdata[ring_idx]; 2806 tbd = &sc->sc_tx_bdata[ring_idx]; 2807 2808 #define NRETRY 10 2809 2810 for (i = 0; i < NRETRY; ++i) { 2811 val = CSR_READ_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_STATUS); 2812 state = __SHIFTOUT(val, BWI_TX32_STATUS_STATE_MASK); 2813 if (state == BWI_TX32_STATUS_STATE_DISABLED || 2814 state == BWI_TX32_STATUS_STATE_IDLE || 2815 state == BWI_TX32_STATUS_STATE_STOPPED) 2816 break; 2817 2818 DELAY(1000); 2819 } 2820 if (i == NRETRY) { 2821 if_printf(ifp, "%s: wait for TX ring(%d) stable timed out\n", 2822 __func__, ring_idx); 2823 } 2824 2825 CSR_WRITE_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_CTRL, 0); 2826 for (i = 0; i < NRETRY; ++i) { 2827 val = CSR_READ_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_STATUS); 2828 state = __SHIFTOUT(val, BWI_TX32_STATUS_STATE_MASK); 2829 if (state == BWI_TX32_STATUS_STATE_DISABLED) 2830 break; 2831 2832 DELAY(1000); 2833 } 2834 if (i == NRETRY) 2835 if_printf(ifp, "%s: reset TX ring (%d) timed out\n", 2836 __func__, ring_idx); 2837 2838 #undef NRETRY 2839 2840 DELAY(1000); 2841 2842 CSR_WRITE_4(sc, rd->rdata_txrx_ctrl + BWI_TX32_RINGINFO, 0); 2843 2844 for (i = 0; i < BWI_TX_NDESC; ++i) { 2845 struct bwi_txbuf *tb = &tbd->tbd_buf[i]; 2846 2847 if (tb->tb_mbuf != NULL) { 2848 bus_dmamap_unload(sc->sc_buf_dtag, tb->tb_dmap); 2849 m_freem(tb->tb_mbuf); 2850 tb->tb_mbuf = NULL; 2851 } 2852 if (tb->tb_ni != NULL) { 2853 ieee80211_free_node(tb->tb_ni); 2854 tb->tb_ni = NULL; 2855 } 2856 } 2857 } 2858 2859 static void 2860 bwi_free_txstats64(struct bwi_softc *sc) 2861 { 2862 /* TODO:64 */ 2863 } 2864 2865 static void 2866 bwi_free_rx_ring64(struct bwi_softc *sc) 2867 { 2868 /* TODO:64 */ 2869 } 2870 2871 static void 2872 bwi_free_tx_ring64(struct bwi_softc *sc, int ring_idx) 2873 { 2874 /* TODO:64 */ 2875 } 2876 2877 /* XXX does not belong here */ 2878 #define IEEE80211_OFDM_PLCP_RATE_MASK __BITS(3, 0) 2879 #define IEEE80211_OFDM_PLCP_LEN_MASK __BITS(16, 5) 2880 2881 static __inline void 2882 bwi_ofdm_plcp_header(uint32_t *plcp0, int pkt_len, uint8_t rate) 2883 { 2884 uint32_t plcp; 2885 2886 plcp = __SHIFTIN(ieee80211_rate2plcp(rate, IEEE80211_T_OFDM), 2887 IEEE80211_OFDM_PLCP_RATE_MASK) | 2888 __SHIFTIN(pkt_len, IEEE80211_OFDM_PLCP_LEN_MASK); 2889 *plcp0 = htole32(plcp); 2890 } 2891 2892 static __inline void 2893 bwi_ds_plcp_header(struct ieee80211_ds_plcp_hdr *plcp, int pkt_len, 2894 uint8_t rate) 2895 { 2896 int len, service, pkt_bitlen; 2897 2898 pkt_bitlen = pkt_len * NBBY; 2899 len = howmany(pkt_bitlen * 2, rate); 2900 2901 service = IEEE80211_PLCP_SERVICE_LOCKED; 2902 if (rate == (11 * 2)) { 2903 int pkt_bitlen1; 2904 2905 /* 2906 * PLCP service field needs to be adjusted, 2907 * if TX rate is 11Mbytes/s 2908 */ 2909 pkt_bitlen1 = len * 11; 2910 if (pkt_bitlen1 - pkt_bitlen >= NBBY) 2911 service |= IEEE80211_PLCP_SERVICE_LENEXT7; 2912 } 2913 2914 plcp->i_signal = ieee80211_rate2plcp(rate, IEEE80211_T_CCK); 2915 plcp->i_service = service; 2916 plcp->i_length = htole16(len); 2917 /* NOTE: do NOT touch i_crc */ 2918 } 2919 2920 static __inline void 2921 bwi_plcp_header(const struct ieee80211_rate_table *rt, 2922 void *plcp, int pkt_len, uint8_t rate) 2923 { 2924 enum ieee80211_phytype modtype; 2925 2926 /* 2927 * Assume caller has zeroed 'plcp' 2928 */ 2929 modtype = ieee80211_rate2phytype(rt, rate); 2930 if (modtype == IEEE80211_T_OFDM) 2931 bwi_ofdm_plcp_header(plcp, pkt_len, rate); 2932 else if (modtype == IEEE80211_T_DS) 2933 bwi_ds_plcp_header(plcp, pkt_len, rate); 2934 else 2935 panic("unsupport modulation type %u\n", modtype); 2936 } 2937 2938 static int 2939 bwi_encap(struct bwi_softc *sc, int idx, struct mbuf *m, 2940 struct ieee80211_node *ni) 2941 { 2942 struct ieee80211vap *vap = ni->ni_vap; 2943 struct ifnet *ifp = sc->sc_ifp; 2944 struct ieee80211com *ic = ifp->if_l2com; 2945 struct bwi_ring_data *rd = &sc->sc_tx_rdata[BWI_TX_DATA_RING]; 2946 struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[BWI_TX_DATA_RING]; 2947 struct bwi_txbuf *tb = &tbd->tbd_buf[idx]; 2948 struct bwi_mac *mac; 2949 struct bwi_txbuf_hdr *hdr; 2950 struct ieee80211_frame *wh; 2951 const struct ieee80211_txparam *tp; 2952 uint8_t rate, rate_fb; 2953 uint32_t mac_ctrl; 2954 uint16_t phy_ctrl; 2955 bus_addr_t paddr; 2956 int type, ismcast, pkt_len, error, rix; 2957 #if 0 2958 const uint8_t *p; 2959 int i; 2960 #endif 2961 2962 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 2963 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 2964 mac = (struct bwi_mac *)sc->sc_cur_regwin; 2965 2966 wh = mtod(m, struct ieee80211_frame *); 2967 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2968 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 2969 2970 /* Get 802.11 frame len before prepending TX header */ 2971 pkt_len = m->m_pkthdr.len + IEEE80211_CRC_LEN; 2972 2973 /* 2974 * Find TX rate 2975 */ 2976 tp = &vap->iv_txparms[ieee80211_chan2mode(ic->ic_curchan)]; 2977 if (type != IEEE80211_FC0_TYPE_DATA || (m->m_flags & M_EAPOL)) { 2978 rate = rate_fb = tp->mgmtrate; 2979 } else if (ismcast) { 2980 rate = rate_fb = tp->mcastrate; 2981 } else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) { 2982 rate = rate_fb = tp->ucastrate; 2983 } else { 2984 rix = ieee80211_ratectl_rate(ni, NULL, pkt_len); 2985 rate = ni->ni_txrate; 2986 2987 if (rix > 0) { 2988 rate_fb = ni->ni_rates.rs_rates[rix-1] & 2989 IEEE80211_RATE_VAL; 2990 } else { 2991 rate_fb = rate; 2992 } 2993 } 2994 tb->tb_rate[0] = rate; 2995 tb->tb_rate[1] = rate_fb; 2996 sc->sc_tx_rate = rate; 2997 2998 /* 2999 * TX radio tap 3000 */ 3001 if (ieee80211_radiotap_active_vap(vap)) { 3002 sc->sc_tx_th.wt_flags = 0; 3003 if (wh->i_fc[1] & IEEE80211_FC1_WEP) 3004 sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3005 if (ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_DS && 3006 (ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 3007 rate != (1 * 2)) { 3008 sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3009 } 3010 sc->sc_tx_th.wt_rate = rate; 3011 3012 ieee80211_radiotap_tx(vap, m); 3013 } 3014 3015 /* 3016 * Setup the embedded TX header 3017 */ 3018 M_PREPEND(m, sizeof(*hdr), M_DONTWAIT); 3019 if (m == NULL) { 3020 if_printf(ifp, "%s: prepend TX header failed\n", __func__); 3021 return ENOBUFS; 3022 } 3023 hdr = mtod(m, struct bwi_txbuf_hdr *); 3024 3025 bzero(hdr, sizeof(*hdr)); 3026 3027 bcopy(wh->i_fc, hdr->txh_fc, sizeof(hdr->txh_fc)); 3028 bcopy(wh->i_addr1, hdr->txh_addr1, sizeof(hdr->txh_addr1)); 3029 3030 if (!ismcast) { 3031 uint16_t dur; 3032 3033 dur = ieee80211_ack_duration(sc->sc_rates, rate, 3034 ic->ic_flags & ~IEEE80211_F_SHPREAMBLE); 3035 3036 hdr->txh_fb_duration = htole16(dur); 3037 } 3038 3039 hdr->txh_id = __SHIFTIN(BWI_TX_DATA_RING, BWI_TXH_ID_RING_MASK) | 3040 __SHIFTIN(idx, BWI_TXH_ID_IDX_MASK); 3041 3042 bwi_plcp_header(sc->sc_rates, hdr->txh_plcp, pkt_len, rate); 3043 bwi_plcp_header(sc->sc_rates, hdr->txh_fb_plcp, pkt_len, rate_fb); 3044 3045 phy_ctrl = __SHIFTIN(mac->mac_rf.rf_ant_mode, 3046 BWI_TXH_PHY_C_ANTMODE_MASK); 3047 if (ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) 3048 phy_ctrl |= BWI_TXH_PHY_C_OFDM; 3049 else if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && rate != (2 * 1)) 3050 phy_ctrl |= BWI_TXH_PHY_C_SHPREAMBLE; 3051 3052 mac_ctrl = BWI_TXH_MAC_C_HWSEQ | BWI_TXH_MAC_C_FIRST_FRAG; 3053 if (!ismcast) 3054 mac_ctrl |= BWI_TXH_MAC_C_ACK; 3055 if (ieee80211_rate2phytype(sc->sc_rates, rate_fb) == IEEE80211_T_OFDM) 3056 mac_ctrl |= BWI_TXH_MAC_C_FB_OFDM; 3057 3058 hdr->txh_mac_ctrl = htole32(mac_ctrl); 3059 hdr->txh_phy_ctrl = htole16(phy_ctrl); 3060 3061 /* Catch any further usage */ 3062 hdr = NULL; 3063 wh = NULL; 3064 3065 /* DMA load */ 3066 error = bus_dmamap_load_mbuf(sc->sc_buf_dtag, tb->tb_dmap, m, 3067 bwi_dma_buf_addr, &paddr, BUS_DMA_NOWAIT); 3068 if (error && error != EFBIG) { 3069 if_printf(ifp, "%s: can't load TX buffer (1) %d\n", 3070 __func__, error); 3071 goto back; 3072 } 3073 3074 if (error) { /* error == EFBIG */ 3075 struct mbuf *m_new; 3076 3077 m_new = m_defrag(m, M_DONTWAIT); 3078 if (m_new == NULL) { 3079 if_printf(ifp, "%s: can't defrag TX buffer\n", 3080 __func__); 3081 error = ENOBUFS; 3082 goto back; 3083 } else { 3084 m = m_new; 3085 } 3086 3087 error = bus_dmamap_load_mbuf(sc->sc_buf_dtag, tb->tb_dmap, m, 3088 bwi_dma_buf_addr, &paddr, 3089 BUS_DMA_NOWAIT); 3090 if (error) { 3091 if_printf(ifp, "%s: can't load TX buffer (2) %d\n", 3092 __func__, error); 3093 goto back; 3094 } 3095 } 3096 error = 0; 3097 3098 bus_dmamap_sync(sc->sc_buf_dtag, tb->tb_dmap, BUS_DMASYNC_PREWRITE); 3099 3100 tb->tb_mbuf = m; 3101 tb->tb_ni = ni; 3102 3103 #if 0 3104 p = mtod(m, const uint8_t *); 3105 for (i = 0; i < m->m_pkthdr.len; ++i) { 3106 if (i != 0 && i % 8 == 0) 3107 printf("\n"); 3108 printf("%02x ", p[i]); 3109 } 3110 printf("\n"); 3111 #endif 3112 DPRINTF(sc, BWI_DBG_TX, "idx %d, pkt_len %d, buflen %d\n", 3113 idx, pkt_len, m->m_pkthdr.len); 3114 3115 /* Setup TX descriptor */ 3116 sc->sc_setup_txdesc(sc, rd, idx, paddr, m->m_pkthdr.len); 3117 bus_dmamap_sync(sc->sc_txring_dtag, rd->rdata_dmap, 3118 BUS_DMASYNC_PREWRITE); 3119 3120 /* Kick start */ 3121 sc->sc_start_tx(sc, rd->rdata_txrx_ctrl, idx); 3122 3123 back: 3124 if (error) 3125 m_freem(m); 3126 return error; 3127 } 3128 3129 static int 3130 bwi_encap_raw(struct bwi_softc *sc, int idx, struct mbuf *m, 3131 struct ieee80211_node *ni, const struct ieee80211_bpf_params *params) 3132 { 3133 struct ifnet *ifp = sc->sc_ifp; 3134 struct ieee80211vap *vap = ni->ni_vap; 3135 struct ieee80211com *ic = ni->ni_ic; 3136 struct bwi_ring_data *rd = &sc->sc_tx_rdata[BWI_TX_DATA_RING]; 3137 struct bwi_txbuf_data *tbd = &sc->sc_tx_bdata[BWI_TX_DATA_RING]; 3138 struct bwi_txbuf *tb = &tbd->tbd_buf[idx]; 3139 struct bwi_mac *mac; 3140 struct bwi_txbuf_hdr *hdr; 3141 struct ieee80211_frame *wh; 3142 uint8_t rate, rate_fb; 3143 uint32_t mac_ctrl; 3144 uint16_t phy_ctrl; 3145 bus_addr_t paddr; 3146 int ismcast, pkt_len, error; 3147 3148 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 3149 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 3150 mac = (struct bwi_mac *)sc->sc_cur_regwin; 3151 3152 wh = mtod(m, struct ieee80211_frame *); 3153 ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); 3154 3155 /* Get 802.11 frame len before prepending TX header */ 3156 pkt_len = m->m_pkthdr.len + IEEE80211_CRC_LEN; 3157 3158 /* 3159 * Find TX rate 3160 */ 3161 rate = params->ibp_rate0; 3162 if (!ieee80211_isratevalid(ic->ic_rt, rate)) { 3163 /* XXX fall back to mcast/mgmt rate? */ 3164 m_freem(m); 3165 return EINVAL; 3166 } 3167 if (params->ibp_try1 != 0) { 3168 rate_fb = params->ibp_rate1; 3169 if (!ieee80211_isratevalid(ic->ic_rt, rate_fb)) { 3170 /* XXX fall back to rate0? */ 3171 m_freem(m); 3172 return EINVAL; 3173 } 3174 } else 3175 rate_fb = rate; 3176 tb->tb_rate[0] = rate; 3177 tb->tb_rate[1] = rate_fb; 3178 sc->sc_tx_rate = rate; 3179 3180 /* 3181 * TX radio tap 3182 */ 3183 if (ieee80211_radiotap_active_vap(vap)) { 3184 sc->sc_tx_th.wt_flags = 0; 3185 /* XXX IEEE80211_BPF_CRYPTO */ 3186 if (wh->i_fc[1] & IEEE80211_FC1_WEP) 3187 sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_WEP; 3188 if (params->ibp_flags & IEEE80211_BPF_SHORTPRE) 3189 sc->sc_tx_th.wt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3190 sc->sc_tx_th.wt_rate = rate; 3191 3192 ieee80211_radiotap_tx(vap, m); 3193 } 3194 3195 /* 3196 * Setup the embedded TX header 3197 */ 3198 M_PREPEND(m, sizeof(*hdr), M_DONTWAIT); 3199 if (m == NULL) { 3200 if_printf(ifp, "%s: prepend TX header failed\n", __func__); 3201 return ENOBUFS; 3202 } 3203 hdr = mtod(m, struct bwi_txbuf_hdr *); 3204 3205 bzero(hdr, sizeof(*hdr)); 3206 3207 bcopy(wh->i_fc, hdr->txh_fc, sizeof(hdr->txh_fc)); 3208 bcopy(wh->i_addr1, hdr->txh_addr1, sizeof(hdr->txh_addr1)); 3209 3210 mac_ctrl = BWI_TXH_MAC_C_HWSEQ | BWI_TXH_MAC_C_FIRST_FRAG; 3211 if (!ismcast && (params->ibp_flags & IEEE80211_BPF_NOACK) == 0) { 3212 uint16_t dur; 3213 3214 dur = ieee80211_ack_duration(sc->sc_rates, rate_fb, 0); 3215 3216 hdr->txh_fb_duration = htole16(dur); 3217 mac_ctrl |= BWI_TXH_MAC_C_ACK; 3218 } 3219 3220 hdr->txh_id = __SHIFTIN(BWI_TX_DATA_RING, BWI_TXH_ID_RING_MASK) | 3221 __SHIFTIN(idx, BWI_TXH_ID_IDX_MASK); 3222 3223 bwi_plcp_header(sc->sc_rates, hdr->txh_plcp, pkt_len, rate); 3224 bwi_plcp_header(sc->sc_rates, hdr->txh_fb_plcp, pkt_len, rate_fb); 3225 3226 phy_ctrl = __SHIFTIN(mac->mac_rf.rf_ant_mode, 3227 BWI_TXH_PHY_C_ANTMODE_MASK); 3228 if (ieee80211_rate2phytype(sc->sc_rates, rate) == IEEE80211_T_OFDM) { 3229 phy_ctrl |= BWI_TXH_PHY_C_OFDM; 3230 mac_ctrl |= BWI_TXH_MAC_C_FB_OFDM; 3231 } else if (params->ibp_flags & IEEE80211_BPF_SHORTPRE) 3232 phy_ctrl |= BWI_TXH_PHY_C_SHPREAMBLE; 3233 3234 hdr->txh_mac_ctrl = htole32(mac_ctrl); 3235 hdr->txh_phy_ctrl = htole16(phy_ctrl); 3236 3237 /* Catch any further usage */ 3238 hdr = NULL; 3239 wh = NULL; 3240 3241 /* DMA load */ 3242 error = bus_dmamap_load_mbuf(sc->sc_buf_dtag, tb->tb_dmap, m, 3243 bwi_dma_buf_addr, &paddr, BUS_DMA_NOWAIT); 3244 if (error != 0) { 3245 struct mbuf *m_new; 3246 3247 if (error != EFBIG) { 3248 if_printf(ifp, "%s: can't load TX buffer (1) %d\n", 3249 __func__, error); 3250 goto back; 3251 } 3252 m_new = m_defrag(m, M_DONTWAIT); 3253 if (m_new == NULL) { 3254 if_printf(ifp, "%s: can't defrag TX buffer\n", 3255 __func__); 3256 error = ENOBUFS; 3257 goto back; 3258 } 3259 m = m_new; 3260 error = bus_dmamap_load_mbuf(sc->sc_buf_dtag, tb->tb_dmap, m, 3261 bwi_dma_buf_addr, &paddr, 3262 BUS_DMA_NOWAIT); 3263 if (error) { 3264 if_printf(ifp, "%s: can't load TX buffer (2) %d\n", 3265 __func__, error); 3266 goto back; 3267 } 3268 } 3269 3270 bus_dmamap_sync(sc->sc_buf_dtag, tb->tb_dmap, BUS_DMASYNC_PREWRITE); 3271 3272 tb->tb_mbuf = m; 3273 tb->tb_ni = ni; 3274 3275 DPRINTF(sc, BWI_DBG_TX, "idx %d, pkt_len %d, buflen %d\n", 3276 idx, pkt_len, m->m_pkthdr.len); 3277 3278 /* Setup TX descriptor */ 3279 sc->sc_setup_txdesc(sc, rd, idx, paddr, m->m_pkthdr.len); 3280 bus_dmamap_sync(sc->sc_txring_dtag, rd->rdata_dmap, 3281 BUS_DMASYNC_PREWRITE); 3282 3283 /* Kick start */ 3284 sc->sc_start_tx(sc, rd->rdata_txrx_ctrl, idx); 3285 back: 3286 if (error) 3287 m_freem(m); 3288 return error; 3289 } 3290 3291 static void 3292 bwi_start_tx32(struct bwi_softc *sc, uint32_t tx_ctrl, int idx) 3293 { 3294 idx = (idx + 1) % BWI_TX_NDESC; 3295 CSR_WRITE_4(sc, tx_ctrl + BWI_TX32_INDEX, 3296 idx * sizeof(struct bwi_desc32)); 3297 } 3298 3299 static void 3300 bwi_start_tx64(struct bwi_softc *sc, uint32_t tx_ctrl, int idx) 3301 { 3302 /* TODO:64 */ 3303 } 3304 3305 static void 3306 bwi_txeof_status32(struct bwi_softc *sc) 3307 { 3308 struct ifnet *ifp = sc->sc_ifp; 3309 uint32_t val, ctrl_base; 3310 int end_idx; 3311 3312 ctrl_base = sc->sc_txstats->stats_ctrl_base; 3313 3314 val = CSR_READ_4(sc, ctrl_base + BWI_RX32_STATUS); 3315 end_idx = __SHIFTOUT(val, BWI_RX32_STATUS_INDEX_MASK) / 3316 sizeof(struct bwi_desc32); 3317 3318 bwi_txeof_status(sc, end_idx); 3319 3320 CSR_WRITE_4(sc, ctrl_base + BWI_RX32_INDEX, 3321 end_idx * sizeof(struct bwi_desc32)); 3322 3323 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0) 3324 ifp->if_start(ifp); 3325 } 3326 3327 static void 3328 bwi_txeof_status64(struct bwi_softc *sc) 3329 { 3330 /* TODO:64 */ 3331 } 3332 3333 static void 3334 _bwi_txeof(struct bwi_softc *sc, uint16_t tx_id, int acked, int data_txcnt) 3335 { 3336 struct ifnet *ifp = sc->sc_ifp; 3337 struct bwi_txbuf_data *tbd; 3338 struct bwi_txbuf *tb; 3339 int ring_idx, buf_idx; 3340 struct ieee80211_node *ni; 3341 struct ieee80211vap *vap; 3342 3343 if (tx_id == 0) { 3344 if_printf(ifp, "%s: zero tx id\n", __func__); 3345 return; 3346 } 3347 3348 ring_idx = __SHIFTOUT(tx_id, BWI_TXH_ID_RING_MASK); 3349 buf_idx = __SHIFTOUT(tx_id, BWI_TXH_ID_IDX_MASK); 3350 3351 KASSERT(ring_idx == BWI_TX_DATA_RING, ("ring_idx %d", ring_idx)); 3352 KASSERT(buf_idx < BWI_TX_NDESC, ("buf_idx %d", buf_idx)); 3353 3354 tbd = &sc->sc_tx_bdata[ring_idx]; 3355 KASSERT(tbd->tbd_used > 0, ("tbd_used %d", tbd->tbd_used)); 3356 tbd->tbd_used--; 3357 3358 tb = &tbd->tbd_buf[buf_idx]; 3359 DPRINTF(sc, BWI_DBG_TXEOF, "txeof idx %d, " 3360 "acked %d, data_txcnt %d, ni %p\n", 3361 buf_idx, acked, data_txcnt, tb->tb_ni); 3362 3363 bus_dmamap_unload(sc->sc_buf_dtag, tb->tb_dmap); 3364 3365 ni = tb->tb_ni; 3366 if (tb->tb_ni != NULL) { 3367 const struct bwi_txbuf_hdr *hdr = 3368 mtod(tb->tb_mbuf, const struct bwi_txbuf_hdr *); 3369 vap = ni->ni_vap; 3370 3371 /* NB: update rate control only for unicast frames */ 3372 if (hdr->txh_mac_ctrl & htole32(BWI_TXH_MAC_C_ACK)) { 3373 /* 3374 * Feed back 'acked and data_txcnt'. Note that the 3375 * generic AMRR code only understands one tx rate 3376 * and the estimator doesn't handle real retry counts 3377 * well so to avoid over-aggressive downshifting we 3378 * treat any number of retries as "1". 3379 */ 3380 ieee80211_ratectl_tx_complete(vap, ni, 3381 (data_txcnt > 1) ? IEEE80211_RATECTL_TX_SUCCESS : 3382 IEEE80211_RATECTL_TX_FAILURE, &acked, NULL); 3383 } 3384 3385 /* 3386 * Do any tx complete callback. Note this must 3387 * be done before releasing the node reference. 3388 */ 3389 if (tb->tb_mbuf->m_flags & M_TXCB) 3390 ieee80211_process_callback(ni, tb->tb_mbuf, !acked); 3391 3392 ieee80211_free_node(tb->tb_ni); 3393 tb->tb_ni = NULL; 3394 } 3395 m_freem(tb->tb_mbuf); 3396 tb->tb_mbuf = NULL; 3397 3398 if (tbd->tbd_used == 0) 3399 sc->sc_tx_timer = 0; 3400 3401 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3402 } 3403 3404 static void 3405 bwi_txeof_status(struct bwi_softc *sc, int end_idx) 3406 { 3407 struct bwi_txstats_data *st = sc->sc_txstats; 3408 int idx; 3409 3410 bus_dmamap_sync(st->stats_dtag, st->stats_dmap, BUS_DMASYNC_POSTREAD); 3411 3412 idx = st->stats_idx; 3413 while (idx != end_idx) { 3414 const struct bwi_txstats *stats = &st->stats[idx]; 3415 3416 if ((stats->txs_flags & BWI_TXS_F_PENDING) == 0) { 3417 int data_txcnt; 3418 3419 data_txcnt = __SHIFTOUT(stats->txs_txcnt, 3420 BWI_TXS_TXCNT_DATA); 3421 _bwi_txeof(sc, le16toh(stats->txs_id), 3422 stats->txs_flags & BWI_TXS_F_ACKED, 3423 data_txcnt); 3424 } 3425 idx = (idx + 1) % BWI_TXSTATS_NDESC; 3426 } 3427 st->stats_idx = idx; 3428 } 3429 3430 static void 3431 bwi_txeof(struct bwi_softc *sc) 3432 { 3433 struct ifnet *ifp = sc->sc_ifp; 3434 3435 for (;;) { 3436 uint32_t tx_status0, tx_status1; 3437 uint16_t tx_id; 3438 int data_txcnt; 3439 3440 tx_status0 = CSR_READ_4(sc, BWI_TXSTATUS0); 3441 if ((tx_status0 & BWI_TXSTATUS0_VALID) == 0) 3442 break; 3443 tx_status1 = CSR_READ_4(sc, BWI_TXSTATUS1); 3444 3445 tx_id = __SHIFTOUT(tx_status0, BWI_TXSTATUS0_TXID_MASK); 3446 data_txcnt = __SHIFTOUT(tx_status0, 3447 BWI_TXSTATUS0_DATA_TXCNT_MASK); 3448 3449 if (tx_status0 & (BWI_TXSTATUS0_AMPDU | BWI_TXSTATUS0_PENDING)) 3450 continue; 3451 3452 _bwi_txeof(sc, le16toh(tx_id), tx_status0 & BWI_TXSTATUS0_ACKED, 3453 data_txcnt); 3454 } 3455 3456 if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0) 3457 ifp->if_start(ifp); 3458 } 3459 3460 static int 3461 bwi_bbp_power_on(struct bwi_softc *sc, enum bwi_clock_mode clk_mode) 3462 { 3463 bwi_power_on(sc, 1); 3464 return bwi_set_clock_mode(sc, clk_mode); 3465 } 3466 3467 static void 3468 bwi_bbp_power_off(struct bwi_softc *sc) 3469 { 3470 bwi_set_clock_mode(sc, BWI_CLOCK_MODE_SLOW); 3471 bwi_power_off(sc, 1); 3472 } 3473 3474 static int 3475 bwi_get_pwron_delay(struct bwi_softc *sc) 3476 { 3477 struct bwi_regwin *com, *old; 3478 struct bwi_clock_freq freq; 3479 uint32_t val; 3480 int error; 3481 3482 com = &sc->sc_com_regwin; 3483 KASSERT(BWI_REGWIN_EXIST(com), ("no regwin")); 3484 3485 if ((sc->sc_cap & BWI_CAP_CLKMODE) == 0) 3486 return 0; 3487 3488 error = bwi_regwin_switch(sc, com, &old); 3489 if (error) 3490 return error; 3491 3492 bwi_get_clock_freq(sc, &freq); 3493 3494 val = CSR_READ_4(sc, BWI_PLL_ON_DELAY); 3495 sc->sc_pwron_delay = howmany((val + 2) * 1000000, freq.clkfreq_min); 3496 DPRINTF(sc, BWI_DBG_ATTACH, "power on delay %u\n", sc->sc_pwron_delay); 3497 3498 return bwi_regwin_switch(sc, old, NULL); 3499 } 3500 3501 static int 3502 bwi_bus_attach(struct bwi_softc *sc) 3503 { 3504 struct bwi_regwin *bus, *old; 3505 int error; 3506 3507 bus = &sc->sc_bus_regwin; 3508 3509 error = bwi_regwin_switch(sc, bus, &old); 3510 if (error) 3511 return error; 3512 3513 if (!bwi_regwin_is_enabled(sc, bus)) 3514 bwi_regwin_enable(sc, bus, 0); 3515 3516 /* Disable interripts */ 3517 CSR_WRITE_4(sc, BWI_INTRVEC, 0); 3518 3519 return bwi_regwin_switch(sc, old, NULL); 3520 } 3521 3522 static const char * 3523 bwi_regwin_name(const struct bwi_regwin *rw) 3524 { 3525 switch (rw->rw_type) { 3526 case BWI_REGWIN_T_COM: 3527 return "COM"; 3528 case BWI_REGWIN_T_BUSPCI: 3529 return "PCI"; 3530 case BWI_REGWIN_T_MAC: 3531 return "MAC"; 3532 case BWI_REGWIN_T_BUSPCIE: 3533 return "PCIE"; 3534 } 3535 panic("unknown regwin type 0x%04x\n", rw->rw_type); 3536 return NULL; 3537 } 3538 3539 static uint32_t 3540 bwi_regwin_disable_bits(struct bwi_softc *sc) 3541 { 3542 uint32_t busrev; 3543 3544 /* XXX cache this */ 3545 busrev = __SHIFTOUT(CSR_READ_4(sc, BWI_ID_LO), BWI_ID_LO_BUSREV_MASK); 3546 DPRINTF(sc, BWI_DBG_ATTACH | BWI_DBG_INIT | BWI_DBG_MISC, 3547 "bus rev %u\n", busrev); 3548 3549 if (busrev == BWI_BUSREV_0) 3550 return BWI_STATE_LO_DISABLE1; 3551 else if (busrev == BWI_BUSREV_1) 3552 return BWI_STATE_LO_DISABLE2; 3553 else 3554 return (BWI_STATE_LO_DISABLE1 | BWI_STATE_LO_DISABLE2); 3555 } 3556 3557 int 3558 bwi_regwin_is_enabled(struct bwi_softc *sc, struct bwi_regwin *rw) 3559 { 3560 uint32_t val, disable_bits; 3561 3562 disable_bits = bwi_regwin_disable_bits(sc); 3563 val = CSR_READ_4(sc, BWI_STATE_LO); 3564 3565 if ((val & (BWI_STATE_LO_CLOCK | 3566 BWI_STATE_LO_RESET | 3567 disable_bits)) == BWI_STATE_LO_CLOCK) { 3568 DPRINTF(sc, BWI_DBG_ATTACH | BWI_DBG_INIT, "%s is enabled\n", 3569 bwi_regwin_name(rw)); 3570 return 1; 3571 } else { 3572 DPRINTF(sc, BWI_DBG_ATTACH | BWI_DBG_INIT, "%s is disabled\n", 3573 bwi_regwin_name(rw)); 3574 return 0; 3575 } 3576 } 3577 3578 void 3579 bwi_regwin_disable(struct bwi_softc *sc, struct bwi_regwin *rw, uint32_t flags) 3580 { 3581 uint32_t state_lo, disable_bits; 3582 int i; 3583 3584 state_lo = CSR_READ_4(sc, BWI_STATE_LO); 3585 3586 /* 3587 * If current regwin is in 'reset' state, it was already disabled. 3588 */ 3589 if (state_lo & BWI_STATE_LO_RESET) { 3590 DPRINTF(sc, BWI_DBG_ATTACH | BWI_DBG_INIT, 3591 "%s was already disabled\n", bwi_regwin_name(rw)); 3592 return; 3593 } 3594 3595 disable_bits = bwi_regwin_disable_bits(sc); 3596 3597 /* 3598 * Disable normal clock 3599 */ 3600 state_lo = BWI_STATE_LO_CLOCK | disable_bits; 3601 CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); 3602 3603 /* 3604 * Wait until normal clock is disabled 3605 */ 3606 #define NRETRY 1000 3607 for (i = 0; i < NRETRY; ++i) { 3608 state_lo = CSR_READ_4(sc, BWI_STATE_LO); 3609 if (state_lo & disable_bits) 3610 break; 3611 DELAY(10); 3612 } 3613 if (i == NRETRY) { 3614 device_printf(sc->sc_dev, "%s disable clock timeout\n", 3615 bwi_regwin_name(rw)); 3616 } 3617 3618 for (i = 0; i < NRETRY; ++i) { 3619 uint32_t state_hi; 3620 3621 state_hi = CSR_READ_4(sc, BWI_STATE_HI); 3622 if ((state_hi & BWI_STATE_HI_BUSY) == 0) 3623 break; 3624 DELAY(10); 3625 } 3626 if (i == NRETRY) { 3627 device_printf(sc->sc_dev, "%s wait BUSY unset timeout\n", 3628 bwi_regwin_name(rw)); 3629 } 3630 #undef NRETRY 3631 3632 /* 3633 * Reset and disable regwin with gated clock 3634 */ 3635 state_lo = BWI_STATE_LO_RESET | disable_bits | 3636 BWI_STATE_LO_CLOCK | BWI_STATE_LO_GATED_CLOCK | 3637 __SHIFTIN(flags, BWI_STATE_LO_FLAGS_MASK); 3638 CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); 3639 3640 /* Flush pending bus write */ 3641 CSR_READ_4(sc, BWI_STATE_LO); 3642 DELAY(1); 3643 3644 /* Reset and disable regwin */ 3645 state_lo = BWI_STATE_LO_RESET | disable_bits | 3646 __SHIFTIN(flags, BWI_STATE_LO_FLAGS_MASK); 3647 CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); 3648 3649 /* Flush pending bus write */ 3650 CSR_READ_4(sc, BWI_STATE_LO); 3651 DELAY(1); 3652 } 3653 3654 void 3655 bwi_regwin_enable(struct bwi_softc *sc, struct bwi_regwin *rw, uint32_t flags) 3656 { 3657 uint32_t state_lo, state_hi, imstate; 3658 3659 bwi_regwin_disable(sc, rw, flags); 3660 3661 /* Reset regwin with gated clock */ 3662 state_lo = BWI_STATE_LO_RESET | 3663 BWI_STATE_LO_CLOCK | 3664 BWI_STATE_LO_GATED_CLOCK | 3665 __SHIFTIN(flags, BWI_STATE_LO_FLAGS_MASK); 3666 CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); 3667 3668 /* Flush pending bus write */ 3669 CSR_READ_4(sc, BWI_STATE_LO); 3670 DELAY(1); 3671 3672 state_hi = CSR_READ_4(sc, BWI_STATE_HI); 3673 if (state_hi & BWI_STATE_HI_SERROR) 3674 CSR_WRITE_4(sc, BWI_STATE_HI, 0); 3675 3676 imstate = CSR_READ_4(sc, BWI_IMSTATE); 3677 if (imstate & (BWI_IMSTATE_INBAND_ERR | BWI_IMSTATE_TIMEOUT)) { 3678 imstate &= ~(BWI_IMSTATE_INBAND_ERR | BWI_IMSTATE_TIMEOUT); 3679 CSR_WRITE_4(sc, BWI_IMSTATE, imstate); 3680 } 3681 3682 /* Enable regwin with gated clock */ 3683 state_lo = BWI_STATE_LO_CLOCK | 3684 BWI_STATE_LO_GATED_CLOCK | 3685 __SHIFTIN(flags, BWI_STATE_LO_FLAGS_MASK); 3686 CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); 3687 3688 /* Flush pending bus write */ 3689 CSR_READ_4(sc, BWI_STATE_LO); 3690 DELAY(1); 3691 3692 /* Enable regwin with normal clock */ 3693 state_lo = BWI_STATE_LO_CLOCK | 3694 __SHIFTIN(flags, BWI_STATE_LO_FLAGS_MASK); 3695 CSR_WRITE_4(sc, BWI_STATE_LO, state_lo); 3696 3697 /* Flush pending bus write */ 3698 CSR_READ_4(sc, BWI_STATE_LO); 3699 DELAY(1); 3700 } 3701 3702 static void 3703 bwi_set_bssid(struct bwi_softc *sc, const uint8_t *bssid) 3704 { 3705 struct ifnet *ifp = sc->sc_ifp; 3706 struct bwi_mac *mac; 3707 struct bwi_myaddr_bssid buf; 3708 const uint8_t *p; 3709 uint32_t val; 3710 int n, i; 3711 3712 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 3713 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 3714 mac = (struct bwi_mac *)sc->sc_cur_regwin; 3715 3716 bwi_set_addr_filter(sc, BWI_ADDR_FILTER_BSSID, bssid); 3717 3718 bcopy(IF_LLADDR(ifp), buf.myaddr, sizeof(buf.myaddr)); 3719 bcopy(bssid, buf.bssid, sizeof(buf.bssid)); 3720 3721 n = sizeof(buf) / sizeof(val); 3722 p = (const uint8_t *)&buf; 3723 for (i = 0; i < n; ++i) { 3724 int j; 3725 3726 val = 0; 3727 for (j = 0; j < sizeof(val); ++j) 3728 val |= ((uint32_t)(*p++)) << (j * 8); 3729 3730 TMPLT_WRITE_4(mac, 0x20 + (i * sizeof(val)), val); 3731 } 3732 } 3733 3734 static void 3735 bwi_updateslot(struct ifnet *ifp) 3736 { 3737 struct bwi_softc *sc = ifp->if_softc; 3738 struct ieee80211com *ic = ifp->if_l2com; 3739 struct bwi_mac *mac; 3740 3741 BWI_LOCK(sc); 3742 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 3743 DPRINTF(sc, BWI_DBG_80211, "%s\n", __func__); 3744 3745 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 3746 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 3747 mac = (struct bwi_mac *)sc->sc_cur_regwin; 3748 3749 bwi_mac_updateslot(mac, (ic->ic_flags & IEEE80211_F_SHSLOT)); 3750 } 3751 BWI_UNLOCK(sc); 3752 } 3753 3754 static void 3755 bwi_calibrate(void *xsc) 3756 { 3757 struct bwi_softc *sc = xsc; 3758 #ifdef INVARIANTS 3759 struct ifnet *ifp = sc->sc_ifp; 3760 struct ieee80211com *ic = ifp->if_l2com; 3761 #endif 3762 struct bwi_mac *mac; 3763 3764 BWI_ASSERT_LOCKED(sc); 3765 3766 KASSERT(ic->ic_opmode != IEEE80211_M_MONITOR, 3767 ("opmode %d", ic->ic_opmode)); 3768 3769 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 3770 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 3771 mac = (struct bwi_mac *)sc->sc_cur_regwin; 3772 3773 bwi_mac_calibrate_txpower(mac, sc->sc_txpwrcb_type); 3774 sc->sc_txpwrcb_type = BWI_TXPWR_CALIB; 3775 3776 /* XXX 15 seconds */ 3777 callout_reset(&sc->sc_calib_ch, hz * 15, bwi_calibrate, sc); 3778 } 3779 3780 static int 3781 bwi_calc_rssi(struct bwi_softc *sc, const struct bwi_rxbuf_hdr *hdr) 3782 { 3783 struct bwi_mac *mac; 3784 3785 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 3786 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 3787 mac = (struct bwi_mac *)sc->sc_cur_regwin; 3788 3789 return bwi_rf_calc_rssi(mac, hdr); 3790 } 3791 3792 static int 3793 bwi_calc_noise(struct bwi_softc *sc) 3794 { 3795 struct bwi_mac *mac; 3796 3797 KASSERT(sc->sc_cur_regwin->rw_type == BWI_REGWIN_T_MAC, 3798 ("current regwin type %d", sc->sc_cur_regwin->rw_type)); 3799 mac = (struct bwi_mac *)sc->sc_cur_regwin; 3800 3801 return bwi_rf_calc_noise(mac); 3802 } 3803 3804 static __inline uint8_t 3805 bwi_ofdm_plcp2rate(const uint32_t *plcp0) 3806 { 3807 uint32_t plcp; 3808 uint8_t plcp_rate; 3809 3810 plcp = le32toh(*plcp0); 3811 plcp_rate = __SHIFTOUT(plcp, IEEE80211_OFDM_PLCP_RATE_MASK); 3812 return ieee80211_plcp2rate(plcp_rate, IEEE80211_T_OFDM); 3813 } 3814 3815 static __inline uint8_t 3816 bwi_ds_plcp2rate(const struct ieee80211_ds_plcp_hdr *hdr) 3817 { 3818 return ieee80211_plcp2rate(hdr->i_signal, IEEE80211_T_DS); 3819 } 3820 3821 static void 3822 bwi_rx_radiotap(struct bwi_softc *sc, struct mbuf *m, 3823 struct bwi_rxbuf_hdr *hdr, const void *plcp, int rate, int rssi, int noise) 3824 { 3825 const struct ieee80211_frame_min *wh; 3826 3827 sc->sc_rx_th.wr_flags = IEEE80211_RADIOTAP_F_FCS; 3828 if (htole16(hdr->rxh_flags1) & BWI_RXH_F1_SHPREAMBLE) 3829 sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 3830 3831 wh = mtod(m, const struct ieee80211_frame_min *); 3832 if (wh->i_fc[1] & IEEE80211_FC1_WEP) 3833 sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_WEP; 3834 3835 sc->sc_rx_th.wr_tsf = hdr->rxh_tsf; /* No endian convertion */ 3836 sc->sc_rx_th.wr_rate = rate; 3837 sc->sc_rx_th.wr_antsignal = rssi; 3838 sc->sc_rx_th.wr_antnoise = noise; 3839 } 3840 3841 static void 3842 bwi_led_attach(struct bwi_softc *sc) 3843 { 3844 const uint8_t *led_act = NULL; 3845 uint16_t gpio, val[BWI_LED_MAX]; 3846 int i; 3847 3848 #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) 3849 3850 for (i = 0; i < N(bwi_vendor_led_act); ++i) { 3851 if (sc->sc_pci_subvid == bwi_vendor_led_act[i].vid) { 3852 led_act = bwi_vendor_led_act[i].led_act; 3853 break; 3854 } 3855 } 3856 if (led_act == NULL) 3857 led_act = bwi_default_led_act; 3858 3859 #undef N 3860 3861 gpio = bwi_read_sprom(sc, BWI_SPROM_GPIO01); 3862 val[0] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_0); 3863 val[1] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_1); 3864 3865 gpio = bwi_read_sprom(sc, BWI_SPROM_GPIO23); 3866 val[2] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_2); 3867 val[3] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_3); 3868 3869 for (i = 0; i < BWI_LED_MAX; ++i) { 3870 struct bwi_led *led = &sc->sc_leds[i]; 3871 3872 if (val[i] == 0xff) { 3873 led->l_act = led_act[i]; 3874 } else { 3875 if (val[i] & BWI_LED_ACT_LOW) 3876 led->l_flags |= BWI_LED_F_ACTLOW; 3877 led->l_act = __SHIFTOUT(val[i], BWI_LED_ACT_MASK); 3878 } 3879 led->l_mask = (1 << i); 3880 3881 if (led->l_act == BWI_LED_ACT_BLINK_SLOW || 3882 led->l_act == BWI_LED_ACT_BLINK_POLL || 3883 led->l_act == BWI_LED_ACT_BLINK) { 3884 led->l_flags |= BWI_LED_F_BLINK; 3885 if (led->l_act == BWI_LED_ACT_BLINK_POLL) 3886 led->l_flags |= BWI_LED_F_POLLABLE; 3887 else if (led->l_act == BWI_LED_ACT_BLINK_SLOW) 3888 led->l_flags |= BWI_LED_F_SLOW; 3889 3890 if (sc->sc_blink_led == NULL) { 3891 sc->sc_blink_led = led; 3892 if (led->l_flags & BWI_LED_F_SLOW) 3893 BWI_LED_SLOWDOWN(sc->sc_led_idle); 3894 } 3895 } 3896 3897 DPRINTF(sc, BWI_DBG_LED | BWI_DBG_ATTACH, 3898 "%dth led, act %d, lowact %d\n", i, 3899 led->l_act, led->l_flags & BWI_LED_F_ACTLOW); 3900 } 3901 callout_init_mtx(&sc->sc_led_blink_ch, &sc->sc_mtx, 0); 3902 } 3903 3904 static __inline uint16_t 3905 bwi_led_onoff(const struct bwi_led *led, uint16_t val, int on) 3906 { 3907 if (led->l_flags & BWI_LED_F_ACTLOW) 3908 on = !on; 3909 if (on) 3910 val |= led->l_mask; 3911 else 3912 val &= ~led->l_mask; 3913 return val; 3914 } 3915 3916 static void 3917 bwi_led_newstate(struct bwi_softc *sc, enum ieee80211_state nstate) 3918 { 3919 struct ifnet *ifp = sc->sc_ifp; 3920 struct ieee80211com *ic = ifp->if_l2com; 3921 uint16_t val; 3922 int i; 3923 3924 if (nstate == IEEE80211_S_INIT) { 3925 callout_stop(&sc->sc_led_blink_ch); 3926 sc->sc_led_blinking = 0; 3927 } 3928 3929 if ((ic->ic_ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 3930 return; 3931 3932 val = CSR_READ_2(sc, BWI_MAC_GPIO_CTRL); 3933 for (i = 0; i < BWI_LED_MAX; ++i) { 3934 struct bwi_led *led = &sc->sc_leds[i]; 3935 int on; 3936 3937 if (led->l_act == BWI_LED_ACT_UNKN || 3938 led->l_act == BWI_LED_ACT_NULL) 3939 continue; 3940 3941 if ((led->l_flags & BWI_LED_F_BLINK) && 3942 nstate != IEEE80211_S_INIT) 3943 continue; 3944 3945 switch (led->l_act) { 3946 case BWI_LED_ACT_ON: /* Always on */ 3947 on = 1; 3948 break; 3949 case BWI_LED_ACT_OFF: /* Always off */ 3950 case BWI_LED_ACT_5GHZ: /* TODO: 11A */ 3951 on = 0; 3952 break; 3953 default: 3954 on = 1; 3955 switch (nstate) { 3956 case IEEE80211_S_INIT: 3957 on = 0; 3958 break; 3959 case IEEE80211_S_RUN: 3960 if (led->l_act == BWI_LED_ACT_11G && 3961 ic->ic_curmode != IEEE80211_MODE_11G) 3962 on = 0; 3963 break; 3964 default: 3965 if (led->l_act == BWI_LED_ACT_ASSOC) 3966 on = 0; 3967 break; 3968 } 3969 break; 3970 } 3971 3972 val = bwi_led_onoff(led, val, on); 3973 } 3974 CSR_WRITE_2(sc, BWI_MAC_GPIO_CTRL, val); 3975 } 3976 static void 3977 bwi_led_event(struct bwi_softc *sc, int event) 3978 { 3979 struct bwi_led *led = sc->sc_blink_led; 3980 int rate; 3981 3982 if (event == BWI_LED_EVENT_POLL) { 3983 if ((led->l_flags & BWI_LED_F_POLLABLE) == 0) 3984 return; 3985 if (ticks - sc->sc_led_ticks < sc->sc_led_idle) 3986 return; 3987 } 3988 3989 sc->sc_led_ticks = ticks; 3990 if (sc->sc_led_blinking) 3991 return; 3992 3993 switch (event) { 3994 case BWI_LED_EVENT_RX: 3995 rate = sc->sc_rx_rate; 3996 break; 3997 case BWI_LED_EVENT_TX: 3998 rate = sc->sc_tx_rate; 3999 break; 4000 case BWI_LED_EVENT_POLL: 4001 rate = 0; 4002 break; 4003 default: 4004 panic("unknown LED event %d\n", event); 4005 break; 4006 } 4007 bwi_led_blink_start(sc, bwi_led_duration[rate].on_dur, 4008 bwi_led_duration[rate].off_dur); 4009 } 4010 4011 static void 4012 bwi_led_blink_start(struct bwi_softc *sc, int on_dur, int off_dur) 4013 { 4014 struct bwi_led *led = sc->sc_blink_led; 4015 uint16_t val; 4016 4017 val = CSR_READ_2(sc, BWI_MAC_GPIO_CTRL); 4018 val = bwi_led_onoff(led, val, 1); 4019 CSR_WRITE_2(sc, BWI_MAC_GPIO_CTRL, val); 4020 4021 if (led->l_flags & BWI_LED_F_SLOW) { 4022 BWI_LED_SLOWDOWN(on_dur); 4023 BWI_LED_SLOWDOWN(off_dur); 4024 } 4025 4026 sc->sc_led_blinking = 1; 4027 sc->sc_led_blink_offdur = off_dur; 4028 4029 callout_reset(&sc->sc_led_blink_ch, on_dur, bwi_led_blink_next, sc); 4030 } 4031 4032 static void 4033 bwi_led_blink_next(void *xsc) 4034 { 4035 struct bwi_softc *sc = xsc; 4036 uint16_t val; 4037 4038 val = CSR_READ_2(sc, BWI_MAC_GPIO_CTRL); 4039 val = bwi_led_onoff(sc->sc_blink_led, val, 0); 4040 CSR_WRITE_2(sc, BWI_MAC_GPIO_CTRL, val); 4041 4042 callout_reset(&sc->sc_led_blink_ch, sc->sc_led_blink_offdur, 4043 bwi_led_blink_end, sc); 4044 } 4045 4046 static void 4047 bwi_led_blink_end(void *xsc) 4048 { 4049 struct bwi_softc *sc = xsc; 4050 sc->sc_led_blinking = 0; 4051 } 4052 4053 static void 4054 bwi_restart(void *xsc, int pending) 4055 { 4056 struct bwi_softc *sc = xsc; 4057 struct ifnet *ifp = sc->sc_ifp; 4058 4059 if_printf(ifp, "%s begin, help!\n", __func__); 4060 BWI_LOCK(sc); 4061 bwi_init_statechg(xsc, 0); 4062 #if 0 4063 bwi_start_locked(ifp); 4064 #endif 4065 BWI_UNLOCK(sc); 4066 } 4067