if_urtwn.c revision 1.27
1 /* $NetBSD: if_urtwn.c,v 1.27 2014/02/16 08:17:43 nonaka Exp $ */ 2 /* $OpenBSD: if_urtwn.c,v 1.20 2011/11/26 06:39:33 ckuethe Exp $ */ 3 4 /*- 5 * Copyright (c) 2010 Damien Bergamini <damien.bergamini (at) free.fr> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /*- 21 * Driver for Realtek RTL8188CE-VAU/RTL8188CUS/RTL8188RU/RTL8192CU. 22 */ 23 24 #include <sys/cdefs.h> 25 __KERNEL_RCSID(0, "$NetBSD: if_urtwn.c,v 1.27 2014/02/16 08:17:43 nonaka Exp $"); 26 27 #ifdef _KERNEL_OPT 28 #include "opt_inet.h" 29 #endif 30 31 #include <sys/param.h> 32 #include <sys/sockio.h> 33 #include <sys/sysctl.h> 34 #include <sys/mbuf.h> 35 #include <sys/kernel.h> 36 #include <sys/socket.h> 37 #include <sys/systm.h> 38 #include <sys/malloc.h> 39 #include <sys/module.h> 40 #include <sys/conf.h> 41 #include <sys/device.h> 42 43 #include <sys/bus.h> 44 #include <machine/endian.h> 45 #include <sys/intr.h> 46 47 #include <net/bpf.h> 48 #include <net/if.h> 49 #include <net/if_arp.h> 50 #include <net/if_dl.h> 51 #include <net/if_ether.h> 52 #include <net/if_media.h> 53 #include <net/if_types.h> 54 55 #include <netinet/in.h> 56 #include <netinet/in_systm.h> 57 #include <netinet/in_var.h> 58 #include <netinet/ip.h> 59 #include <netinet/if_inarp.h> 60 61 #include <net80211/ieee80211_netbsd.h> 62 #include <net80211/ieee80211_var.h> 63 #include <net80211/ieee80211_radiotap.h> 64 65 #include <dev/firmload.h> 66 67 #include <dev/usb/usb.h> 68 #include <dev/usb/usbdi.h> 69 #include <dev/usb/usbdivar.h> 70 #include <dev/usb/usbdi_util.h> 71 #include <dev/usb/usbdevs.h> 72 73 #include <dev/usb/if_urtwnreg.h> 74 #include <dev/usb/if_urtwnvar.h> 75 #include <dev/usb/if_urtwn_data.h> 76 77 /* 78 * The sc_write_mtx locking is to prevent sequences of writes from 79 * being intermingled with each other. I don't know if this is really 80 * needed. I have added it just to be on the safe side. 81 */ 82 83 #ifdef URTWN_DEBUG 84 #define DBG_INIT __BIT(0) 85 #define DBG_FN __BIT(1) 86 #define DBG_TX __BIT(2) 87 #define DBG_RX __BIT(3) 88 #define DBG_STM __BIT(4) 89 #define DBG_RF __BIT(5) 90 #define DBG_REG __BIT(6) 91 #define DBG_ALL 0xffffffffU 92 u_int urtwn_debug = 0; 93 #define DPRINTFN(n, s) \ 94 do { if (urtwn_debug & (n)) printf s; } while (/*CONSTCOND*/0) 95 #else 96 #define DPRINTFN(n, s) 97 #endif 98 99 static const struct usb_devno urtwn_devs[] = { 100 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RTL8188CU_1 }, 101 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RTL8188CU_2 }, 102 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_RTL8192CU }, 103 { USB_VENDOR_ASUSTEK, USB_PRODUCT_ASUSTEK_RTL8192CU }, 104 { USB_VENDOR_AZUREWAVE, USB_PRODUCT_AZUREWAVE_RTL8188CE_1 }, 105 { USB_VENDOR_AZUREWAVE, USB_PRODUCT_AZUREWAVE_RTL8188CE_2 }, 106 { USB_VENDOR_AZUREWAVE, USB_PRODUCT_AZUREWAVE_RTL8188CU }, 107 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_RTL8188CU }, 108 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_RTL8192CU }, 109 { USB_VENDOR_CHICONY, USB_PRODUCT_CHICONY_RTL8188CUS_1 }, 110 { USB_VENDOR_CHICONY, USB_PRODUCT_CHICONY_RTL8188CUS_2 }, 111 { USB_VENDOR_CHICONY, USB_PRODUCT_CHICONY_RTL8188CUS_3 }, 112 { USB_VENDOR_CHICONY, USB_PRODUCT_CHICONY_RTL8188CUS_4 }, 113 { USB_VENDOR_CHICONY, USB_PRODUCT_CHICONY_RTL8188CUS_5 }, 114 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_RTL8192CU }, 115 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_RTL8188CU }, 116 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_RTL8192CU_1 }, 117 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_RTL8192CU_2 }, 118 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_RTL8192CU_3 }, 119 { USB_VENDOR_EDIMAX, USB_PRODUCT_EDIMAX_RTL8188CU }, 120 { USB_VENDOR_EDIMAX, USB_PRODUCT_EDIMAX_RTL8192CU }, 121 { USB_VENDOR_FEIXUN, USB_PRODUCT_FEIXUN_RTL8188CU }, 122 { USB_VENDOR_FEIXUN, USB_PRODUCT_FEIXUN_RTL8192CU }, 123 { USB_VENDOR_GUILLEMOT, USB_PRODUCT_GUILLEMOT_HWNUP150 }, 124 { USB_VENDOR_HAWKING, USB_PRODUCT_HAWKING_RTL8192CU }, 125 { USB_VENDOR_HP3, USB_PRODUCT_HP3_RTL8188CU }, 126 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_WNA1000M }, 127 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_RTL8192CU }, 128 { USB_VENDOR_NETGEAR4, USB_PRODUCT_NETGEAR4_RTL8188CU }, 129 { USB_VENDOR_NOVATECH, USB_PRODUCT_NOVATECH_RTL8188CU }, 130 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_RTL8188CU_1 }, 131 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_RTL8188CU_2 }, 132 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_RTL8192CU }, 133 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_RTL8188CU_3 }, 134 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_RTL8188CU_4 }, 135 { USB_VENDOR_PLANEX2, USB_PRODUCT_PLANEX2_RTL8188CUS }, 136 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8188CE_0 }, 137 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8188CE_1 }, 138 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8188CTV }, 139 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8188CU_0 }, 140 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8188CU_1 }, 141 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8188CU_2 }, 142 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8188CU_COMBO }, 143 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8188CUS }, 144 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8188RU }, 145 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8188RU_2 }, 146 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8191CU }, 147 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8192CE }, 148 { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_RTL8192CU }, 149 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_RTL8188CU }, 150 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_RTL8188CU_2 }, 151 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_RTL8192CU }, 152 { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_RTL8192CUR2 }, 153 { USB_VENDOR_TRENDNET, USB_PRODUCT_TRENDNET_RTL8188CU }, 154 { USB_VENDOR_TRENDNET, USB_PRODUCT_TRENDNET_RTL8192CU }, 155 { USB_VENDOR_ZYXEL, USB_PRODUCT_ZYXEL_RTL8192CU } 156 }; 157 158 static int urtwn_match(device_t, cfdata_t, void *); 159 static void urtwn_attach(device_t, device_t, void *); 160 static int urtwn_detach(device_t, int); 161 static int urtwn_activate(device_t, enum devact); 162 163 CFATTACH_DECL_NEW(urtwn, sizeof(struct urtwn_softc), urtwn_match, 164 urtwn_attach, urtwn_detach, urtwn_activate); 165 166 static int urtwn_open_pipes(struct urtwn_softc *); 167 static void urtwn_close_pipes(struct urtwn_softc *); 168 static int urtwn_alloc_rx_list(struct urtwn_softc *); 169 static void urtwn_free_rx_list(struct urtwn_softc *); 170 static int urtwn_alloc_tx_list(struct urtwn_softc *); 171 static void urtwn_free_tx_list(struct urtwn_softc *); 172 static void urtwn_task(void *); 173 static void urtwn_do_async(struct urtwn_softc *, 174 void (*)(struct urtwn_softc *, void *), void *, int); 175 static void urtwn_wait_async(struct urtwn_softc *); 176 static int urtwn_write_region_1(struct urtwn_softc *, uint16_t, uint8_t *, 177 int); 178 static void urtwn_write_1(struct urtwn_softc *, uint16_t, uint8_t); 179 static void urtwn_write_2(struct urtwn_softc *, uint16_t, uint16_t); 180 static void urtwn_write_4(struct urtwn_softc *, uint16_t, uint32_t); 181 static int urtwn_write_region(struct urtwn_softc *, uint16_t, uint8_t *, 182 int); 183 static int urtwn_read_region_1(struct urtwn_softc *, uint16_t, uint8_t *, 184 int); 185 static uint8_t urtwn_read_1(struct urtwn_softc *, uint16_t); 186 static uint16_t urtwn_read_2(struct urtwn_softc *, uint16_t); 187 static uint32_t urtwn_read_4(struct urtwn_softc *, uint16_t); 188 static int urtwn_fw_cmd(struct urtwn_softc *, uint8_t, const void *, int); 189 static void urtwn_rf_write(struct urtwn_softc *, int, uint8_t, uint32_t); 190 static uint32_t urtwn_rf_read(struct urtwn_softc *, int, uint8_t); 191 static int urtwn_llt_write(struct urtwn_softc *, uint32_t, uint32_t); 192 static uint8_t urtwn_efuse_read_1(struct urtwn_softc *, uint16_t); 193 static void urtwn_efuse_read(struct urtwn_softc *); 194 static int urtwn_read_chipid(struct urtwn_softc *); 195 #ifdef URTWN_DEBUG 196 static void urtwn_dump_rom(struct urtwn_softc *, struct r92c_rom *); 197 #endif 198 static void urtwn_read_rom(struct urtwn_softc *); 199 static int urtwn_media_change(struct ifnet *); 200 static int urtwn_ra_init(struct urtwn_softc *); 201 static int urtwn_get_nettype(struct urtwn_softc *); 202 static void urtwn_set_nettype0_msr(struct urtwn_softc *, uint8_t); 203 static void urtwn_tsf_sync_enable(struct urtwn_softc *); 204 static void urtwn_set_led(struct urtwn_softc *, int, int); 205 static void urtwn_calib_to(void *); 206 static void urtwn_calib_to_cb(struct urtwn_softc *, void *); 207 static void urtwn_next_scan(void *); 208 static int urtwn_newstate(struct ieee80211com *, enum ieee80211_state, 209 int); 210 static void urtwn_newstate_cb(struct urtwn_softc *, void *); 211 static int urtwn_wme_update(struct ieee80211com *); 212 static void urtwn_wme_update_cb(struct urtwn_softc *, void *); 213 static void urtwn_update_avgrssi(struct urtwn_softc *, int, int8_t); 214 static int8_t urtwn_get_rssi(struct urtwn_softc *, int, void *); 215 static void urtwn_rx_frame(struct urtwn_softc *, uint8_t *, int); 216 static void urtwn_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 217 static void urtwn_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 218 static int urtwn_tx(struct urtwn_softc *, struct mbuf *, 219 struct ieee80211_node *, struct urtwn_tx_data *); 220 static void urtwn_start(struct ifnet *); 221 static void urtwn_watchdog(struct ifnet *); 222 static int urtwn_ioctl(struct ifnet *, u_long, void *); 223 static int urtwn_power_on(struct urtwn_softc *); 224 static int urtwn_llt_init(struct urtwn_softc *); 225 static void urtwn_fw_reset(struct urtwn_softc *); 226 static int urtwn_fw_loadpage(struct urtwn_softc *, int, uint8_t *, int); 227 static int urtwn_load_firmware(struct urtwn_softc *); 228 static int urtwn_dma_init(struct urtwn_softc *); 229 static void urtwn_mac_init(struct urtwn_softc *); 230 static void urtwn_bb_init(struct urtwn_softc *); 231 static void urtwn_rf_init(struct urtwn_softc *); 232 static void urtwn_cam_init(struct urtwn_softc *); 233 static void urtwn_pa_bias_init(struct urtwn_softc *); 234 static void urtwn_rxfilter_init(struct urtwn_softc *); 235 static void urtwn_edca_init(struct urtwn_softc *); 236 static void urtwn_write_txpower(struct urtwn_softc *, int, uint16_t[]); 237 static void urtwn_get_txpower(struct urtwn_softc *, size_t, u_int, u_int, 238 uint16_t[]); 239 static void urtwn_set_txpower(struct urtwn_softc *, u_int, u_int); 240 static void urtwn_set_chan(struct urtwn_softc *, struct ieee80211_channel *, 241 u_int); 242 static void urtwn_iq_calib(struct urtwn_softc *, bool); 243 static void urtwn_lc_calib(struct urtwn_softc *); 244 static void urtwn_temp_calib(struct urtwn_softc *); 245 static int urtwn_init(struct ifnet *); 246 static void urtwn_stop(struct ifnet *, int); 247 static int urtwn_reset(struct ifnet *); 248 static void urtwn_chip_stop(struct urtwn_softc *); 249 static void urtwn_newassoc(struct ieee80211_node *, int); 250 251 /* Aliases. */ 252 #define urtwn_bb_write urtwn_write_4 253 #define urtwn_bb_read urtwn_read_4 254 255 static int 256 urtwn_match(device_t parent, cfdata_t match, void *aux) 257 { 258 struct usb_attach_arg *uaa = aux; 259 260 return ((usb_lookup(urtwn_devs, uaa->vendor, uaa->product) != NULL) ? 261 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 262 } 263 264 static void 265 urtwn_attach(device_t parent, device_t self, void *aux) 266 { 267 struct urtwn_softc *sc = device_private(self); 268 struct ieee80211com *ic = &sc->sc_ic; 269 struct ifnet *ifp = &sc->sc_if; 270 struct usb_attach_arg *uaa = aux; 271 char *devinfop; 272 size_t i; 273 int error; 274 275 sc->sc_dev = self; 276 sc->sc_udev = uaa->device; 277 278 aprint_naive("\n"); 279 aprint_normal("\n"); 280 281 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 282 283 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 284 aprint_normal_dev(self, "%s\n", devinfop); 285 usbd_devinfo_free(devinfop); 286 287 mutex_init(&sc->sc_task_mtx, MUTEX_DEFAULT, IPL_NET); 288 mutex_init(&sc->sc_tx_mtx, MUTEX_DEFAULT, IPL_NONE); 289 mutex_init(&sc->sc_fwcmd_mtx, MUTEX_DEFAULT, IPL_NONE); 290 mutex_init(&sc->sc_write_mtx, MUTEX_DEFAULT, IPL_NONE); 291 292 usb_init_task(&sc->sc_task, urtwn_task, sc, 0); 293 294 callout_init(&sc->sc_scan_to, 0); 295 callout_setfunc(&sc->sc_scan_to, urtwn_next_scan, sc); 296 callout_init(&sc->sc_calib_to, 0); 297 callout_setfunc(&sc->sc_calib_to, urtwn_calib_to, sc); 298 299 error = usbd_set_config_no(sc->sc_udev, 1, 0); 300 if (error != 0) { 301 aprint_error_dev(self, "failed to set configuration" 302 ", err=%s\n", usbd_errstr(error)); 303 goto fail; 304 } 305 306 /* Get the first interface handle. */ 307 error = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface); 308 if (error != 0) { 309 aprint_error_dev(self, "could not get interface handle\n"); 310 goto fail; 311 } 312 313 error = urtwn_read_chipid(sc); 314 if (error != 0) { 315 aprint_error_dev(self, "unsupported test chip\n"); 316 goto fail; 317 } 318 319 /* Determine number of Tx/Rx chains. */ 320 if (sc->chip & URTWN_CHIP_92C) { 321 sc->ntxchains = (sc->chip & URTWN_CHIP_92C_1T2R) ? 1 : 2; 322 sc->nrxchains = 2; 323 } else { 324 sc->ntxchains = 1; 325 sc->nrxchains = 1; 326 } 327 urtwn_read_rom(sc); 328 329 aprint_normal_dev(self, "MAC/BB RTL%s, RF 6052 %zdT%zdR, address %s\n", 330 (sc->chip & URTWN_CHIP_92C) ? "8192CU" : 331 (sc->board_type == R92C_BOARD_TYPE_HIGHPA) ? "8188RU" : 332 (sc->board_type == R92C_BOARD_TYPE_MINICARD) ? "8188CE-VAU" : 333 "8188CUS", sc->ntxchains, sc->nrxchains, 334 ether_sprintf(ic->ic_myaddr)); 335 336 error = urtwn_open_pipes(sc); 337 if (error != 0) { 338 aprint_error_dev(sc->sc_dev, "could not open pipes\n"); 339 goto fail; 340 } 341 aprint_normal_dev(self, "%d rx pipe%s, %d tx pipe%s\n", 342 sc->rx_npipe, sc->rx_npipe > 1 ? "s" : "", 343 sc->tx_npipe, sc->tx_npipe > 1 ? "s" : ""); 344 345 /* 346 * Setup the 802.11 device. 347 */ 348 ic->ic_ifp = ifp; 349 ic->ic_phytype = IEEE80211_T_OFDM; /* Not only, but not used. */ 350 ic->ic_opmode = IEEE80211_M_STA; /* Default to BSS mode. */ 351 ic->ic_state = IEEE80211_S_INIT; 352 353 /* Set device capabilities. */ 354 ic->ic_caps = 355 IEEE80211_C_MONITOR | /* Monitor mode supported. */ 356 IEEE80211_C_IBSS | /* IBSS mode supported */ 357 IEEE80211_C_HOSTAP | /* HostAp mode supported */ 358 IEEE80211_C_SHPREAMBLE | /* Short preamble supported. */ 359 IEEE80211_C_SHSLOT | /* Short slot time supported. */ 360 IEEE80211_C_WME | /* 802.11e */ 361 IEEE80211_C_WPA; /* 802.11i */ 362 363 /* Set supported .11b and .11g rates. */ 364 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 365 ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; 366 367 /* Set supported .11b and .11g channels (1 through 14). */ 368 for (i = 1; i <= 14; i++) { 369 ic->ic_channels[i].ic_freq = 370 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 371 ic->ic_channels[i].ic_flags = 372 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 373 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 374 } 375 376 ifp->if_softc = sc; 377 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 378 ifp->if_init = urtwn_init; 379 ifp->if_ioctl = urtwn_ioctl; 380 ifp->if_start = urtwn_start; 381 ifp->if_watchdog = urtwn_watchdog; 382 IFQ_SET_READY(&ifp->if_snd); 383 memcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 384 385 if_attach(ifp); 386 ieee80211_ifattach(ic); 387 388 /* override default methods */ 389 ic->ic_newassoc = urtwn_newassoc; 390 ic->ic_reset = urtwn_reset; 391 ic->ic_wme.wme_update = urtwn_wme_update; 392 393 /* Override state transition machine. */ 394 sc->sc_newstate = ic->ic_newstate; 395 ic->ic_newstate = urtwn_newstate; 396 ieee80211_media_init(ic, urtwn_media_change, ieee80211_media_status); 397 398 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 399 sizeof(struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN, 400 &sc->sc_drvbpf); 401 402 sc->sc_rxtap_len = sizeof(sc->sc_rxtapu); 403 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 404 sc->sc_rxtap.wr_ihdr.it_present = htole32(URTWN_RX_RADIOTAP_PRESENT); 405 406 sc->sc_txtap_len = sizeof(sc->sc_txtapu); 407 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 408 sc->sc_txtap.wt_ihdr.it_present = htole32(URTWN_TX_RADIOTAP_PRESENT); 409 410 ieee80211_announce(ic); 411 412 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 413 414 SET(sc->sc_flags, URTWN_FLAG_ATTACHED); 415 return; 416 417 fail: 418 sc->sc_dying = 1; 419 aprint_error_dev(self, "attach failed\n"); 420 } 421 422 static int 423 urtwn_detach(device_t self, int flags) 424 { 425 struct urtwn_softc *sc = device_private(self); 426 struct ifnet *ifp = &sc->sc_if; 427 int s; 428 429 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 430 431 s = splusb(); 432 433 sc->sc_dying = 1; 434 435 callout_stop(&sc->sc_scan_to); 436 callout_stop(&sc->sc_calib_to); 437 438 if (ISSET(sc->sc_flags, URTWN_FLAG_ATTACHED)) { 439 usb_rem_task(sc->sc_udev, &sc->sc_task); 440 urtwn_stop(ifp, 0); 441 442 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 443 bpf_detach(ifp); 444 ieee80211_ifdetach(&sc->sc_ic); 445 if_detach(ifp); 446 447 /* Abort and close Tx/Rx pipes. */ 448 urtwn_close_pipes(sc); 449 } 450 451 splx(s); 452 453 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 454 455 callout_destroy(&sc->sc_scan_to); 456 callout_destroy(&sc->sc_calib_to); 457 458 mutex_destroy(&sc->sc_write_mtx); 459 mutex_destroy(&sc->sc_fwcmd_mtx); 460 mutex_destroy(&sc->sc_tx_mtx); 461 mutex_destroy(&sc->sc_task_mtx); 462 463 return (0); 464 } 465 466 static int 467 urtwn_activate(device_t self, enum devact act) 468 { 469 struct urtwn_softc *sc = device_private(self); 470 471 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 472 473 switch (act) { 474 case DVACT_DEACTIVATE: 475 if_deactivate(sc->sc_ic.ic_ifp); 476 return (0); 477 default: 478 return (EOPNOTSUPP); 479 } 480 } 481 482 static int 483 urtwn_open_pipes(struct urtwn_softc *sc) 484 { 485 /* Bulk-out endpoints addresses (from highest to lowest prio). */ 486 static const uint8_t epaddr[] = { 0x02, 0x03, 0x05 }; 487 usb_interface_descriptor_t *id; 488 usb_endpoint_descriptor_t *ed; 489 size_t i, ntx = 0; 490 int error; 491 492 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 493 494 /* Determine the number of bulk-out pipes. */ 495 id = usbd_get_interface_descriptor(sc->sc_iface); 496 for (i = 0; i < id->bNumEndpoints; i++) { 497 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 498 if (ed != NULL && 499 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK && 500 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT) 501 ntx++; 502 } 503 DPRINTFN(DBG_INIT, ("%s: %s: found %zd bulk-out pipes\n", 504 device_xname(sc->sc_dev), __func__, ntx)); 505 if (ntx == 0 || ntx > R92C_MAX_EPOUT) { 506 aprint_error_dev(sc->sc_dev, 507 "%zd: invalid number of Tx bulk pipes\n", ntx); 508 return (EIO); 509 } 510 sc->rx_npipe = 1; 511 sc->tx_npipe = ntx; 512 513 /* Open bulk-in pipe at address 0x81. */ 514 error = usbd_open_pipe(sc->sc_iface, 0x81, USBD_EXCLUSIVE_USE, 515 &sc->rx_pipe); 516 if (error != 0) { 517 aprint_error_dev(sc->sc_dev, "could not open Rx bulk pipe" 518 ": %d\n", error); 519 goto fail; 520 } 521 522 /* Open bulk-out pipes (up to 3). */ 523 for (i = 0; i < ntx; i++) { 524 error = usbd_open_pipe(sc->sc_iface, epaddr[i], 525 USBD_EXCLUSIVE_USE, &sc->tx_pipe[i]); 526 if (error != 0) { 527 aprint_error_dev(sc->sc_dev, 528 "could not open Tx bulk pipe 0x%02x: %d\n", 529 epaddr[i], error); 530 goto fail; 531 } 532 } 533 534 /* Map 802.11 access categories to USB pipes. */ 535 sc->ac2idx[WME_AC_BK] = 536 sc->ac2idx[WME_AC_BE] = (ntx == 3) ? 2 : ((ntx == 2) ? 1 : 0); 537 sc->ac2idx[WME_AC_VI] = (ntx == 3) ? 1 : 0; 538 sc->ac2idx[WME_AC_VO] = 0; /* Always use highest prio. */ 539 540 fail: 541 if (error != 0) 542 urtwn_close_pipes(sc); 543 return (error); 544 } 545 546 static void 547 urtwn_close_pipes(struct urtwn_softc *sc) 548 { 549 usbd_pipe_handle pipe; 550 size_t i; 551 552 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 553 554 /* Close Rx pipe. */ 555 CTASSERT(sizeof(pipe) == sizeof(void *)); 556 pipe = atomic_swap_ptr(&sc->rx_pipe, NULL); 557 if (pipe != NULL) { 558 usbd_abort_pipe(pipe); 559 usbd_close_pipe(pipe); 560 } 561 /* Close Tx pipes. */ 562 for (i = 0; i < R92C_MAX_EPOUT; i++) { 563 pipe = atomic_swap_ptr(&sc->tx_pipe[i], NULL); 564 if (pipe != NULL) { 565 usbd_abort_pipe(pipe); 566 usbd_close_pipe(pipe); 567 } 568 } 569 } 570 571 static int 572 urtwn_alloc_rx_list(struct urtwn_softc *sc) 573 { 574 struct urtwn_rx_data *data; 575 size_t i; 576 int error = 0; 577 578 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 579 580 for (i = 0; i < URTWN_RX_LIST_COUNT; i++) { 581 data = &sc->rx_data[i]; 582 583 data->sc = sc; /* Backpointer for callbacks. */ 584 585 data->xfer = usbd_alloc_xfer(sc->sc_udev); 586 if (data->xfer == NULL) { 587 aprint_error_dev(sc->sc_dev, 588 "could not allocate xfer\n"); 589 error = ENOMEM; 590 break; 591 } 592 593 data->buf = usbd_alloc_buffer(data->xfer, URTWN_RXBUFSZ); 594 if (data->buf == NULL) { 595 aprint_error_dev(sc->sc_dev, 596 "could not allocate xfer buffer\n"); 597 error = ENOMEM; 598 break; 599 } 600 } 601 if (error != 0) 602 urtwn_free_rx_list(sc); 603 return (error); 604 } 605 606 static void 607 urtwn_free_rx_list(struct urtwn_softc *sc) 608 { 609 usbd_xfer_handle xfer; 610 size_t i; 611 612 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 613 614 /* NB: Caller must abort pipe first. */ 615 for (i = 0; i < URTWN_RX_LIST_COUNT; i++) { 616 CTASSERT(sizeof(xfer) == sizeof(void *)); 617 xfer = atomic_swap_ptr(&sc->rx_data[i].xfer, NULL); 618 if (xfer != NULL) 619 usbd_free_xfer(xfer); 620 } 621 } 622 623 static int 624 urtwn_alloc_tx_list(struct urtwn_softc *sc) 625 { 626 struct urtwn_tx_data *data; 627 size_t i; 628 int error = 0; 629 630 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 631 632 mutex_enter(&sc->sc_tx_mtx); 633 TAILQ_INIT(&sc->tx_free_list); 634 for (i = 0; i < URTWN_TX_LIST_COUNT; i++) { 635 data = &sc->tx_data[i]; 636 637 data->sc = sc; /* Backpointer for callbacks. */ 638 639 data->xfer = usbd_alloc_xfer(sc->sc_udev); 640 if (data->xfer == NULL) { 641 aprint_error_dev(sc->sc_dev, 642 "could not allocate xfer\n"); 643 error = ENOMEM; 644 goto fail; 645 } 646 647 data->buf = usbd_alloc_buffer(data->xfer, URTWN_TXBUFSZ); 648 if (data->buf == NULL) { 649 aprint_error_dev(sc->sc_dev, 650 "could not allocate xfer buffer\n"); 651 error = ENOMEM; 652 goto fail; 653 } 654 655 /* Append this Tx buffer to our free list. */ 656 TAILQ_INSERT_TAIL(&sc->tx_free_list, data, next); 657 } 658 mutex_exit(&sc->sc_tx_mtx); 659 return (0); 660 661 fail: 662 urtwn_free_tx_list(sc); 663 mutex_exit(&sc->sc_tx_mtx); 664 return (error); 665 } 666 667 static void 668 urtwn_free_tx_list(struct urtwn_softc *sc) 669 { 670 usbd_xfer_handle xfer; 671 size_t i; 672 673 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 674 675 /* NB: Caller must abort pipe first. */ 676 for (i = 0; i < URTWN_TX_LIST_COUNT; i++) { 677 CTASSERT(sizeof(xfer) == sizeof(void *)); 678 xfer = atomic_swap_ptr(&sc->tx_data[i].xfer, NULL); 679 if (xfer != NULL) 680 usbd_free_xfer(xfer); 681 } 682 } 683 684 static void 685 urtwn_task(void *arg) 686 { 687 struct urtwn_softc *sc = arg; 688 struct urtwn_host_cmd_ring *ring = &sc->cmdq; 689 struct urtwn_host_cmd *cmd; 690 int s; 691 692 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 693 694 /* Process host commands. */ 695 s = splusb(); 696 mutex_spin_enter(&sc->sc_task_mtx); 697 while (ring->next != ring->cur) { 698 cmd = &ring->cmd[ring->next]; 699 mutex_spin_exit(&sc->sc_task_mtx); 700 splx(s); 701 /* Invoke callback with kernel lock held. */ 702 cmd->cb(sc, cmd->data); 703 s = splusb(); 704 mutex_spin_enter(&sc->sc_task_mtx); 705 ring->queued--; 706 ring->next = (ring->next + 1) % URTWN_HOST_CMD_RING_COUNT; 707 } 708 mutex_spin_exit(&sc->sc_task_mtx); 709 wakeup(&sc->cmdq); 710 splx(s); 711 } 712 713 static void 714 urtwn_do_async(struct urtwn_softc *sc, void (*cb)(struct urtwn_softc *, void *), 715 void *arg, int len) 716 { 717 struct urtwn_host_cmd_ring *ring = &sc->cmdq; 718 struct urtwn_host_cmd *cmd; 719 int s; 720 721 DPRINTFN(DBG_FN, ("%s: %s: cb=%p, arg=%p, len=%d\n", 722 device_xname(sc->sc_dev), __func__, cb, arg, len)); 723 724 s = splusb(); 725 mutex_spin_enter(&sc->sc_task_mtx); 726 cmd = &ring->cmd[ring->cur]; 727 cmd->cb = cb; 728 KASSERT(len <= sizeof(cmd->data)); 729 memcpy(cmd->data, arg, len); 730 ring->cur = (ring->cur + 1) % URTWN_HOST_CMD_RING_COUNT; 731 732 /* If there is no pending command already, schedule a task. */ 733 if (!sc->sc_dying && ++ring->queued == 1) { 734 mutex_spin_exit(&sc->sc_task_mtx); 735 usb_add_task(sc->sc_udev, &sc->sc_task, USB_TASKQ_DRIVER); 736 } else 737 mutex_spin_exit(&sc->sc_task_mtx); 738 splx(s); 739 } 740 741 static void 742 urtwn_wait_async(struct urtwn_softc *sc) 743 { 744 745 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 746 747 /* Wait for all queued asynchronous commands to complete. */ 748 while (sc->cmdq.queued > 0) 749 tsleep(&sc->cmdq, 0, "endtask", 0); 750 } 751 752 static int 753 urtwn_write_region_1(struct urtwn_softc *sc, uint16_t addr, uint8_t *buf, 754 int len) 755 { 756 usb_device_request_t req; 757 usbd_status error; 758 759 KASSERT(mutex_owned(&sc->sc_write_mtx)); 760 761 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 762 req.bRequest = R92C_REQ_REGS; 763 USETW(req.wValue, addr); 764 USETW(req.wIndex, 0); 765 USETW(req.wLength, len); 766 error = usbd_do_request(sc->sc_udev, &req, buf); 767 if (error != USBD_NORMAL_COMPLETION) { 768 DPRINTFN(DBG_REG, ("%s: %s: error=%d: addr=0x%x, len=%d\n", 769 device_xname(sc->sc_dev), __func__, error, addr, len)); 770 } 771 return (error); 772 } 773 774 static void 775 urtwn_write_1(struct urtwn_softc *sc, uint16_t addr, uint8_t val) 776 { 777 778 DPRINTFN(DBG_REG, ("%s: %s: addr=0x%x, val=0x%x\n", 779 device_xname(sc->sc_dev), __func__, addr, val)); 780 781 urtwn_write_region_1(sc, addr, &val, 1); 782 } 783 784 static void 785 urtwn_write_2(struct urtwn_softc *sc, uint16_t addr, uint16_t val) 786 { 787 uint8_t buf[2]; 788 789 DPRINTFN(DBG_REG, ("%s: %s: addr=0x%x, val=0x%x\n", 790 device_xname(sc->sc_dev), __func__, addr, val)); 791 792 buf[0] = (uint8_t)val; 793 buf[1] = (uint8_t)(val >> 8); 794 urtwn_write_region_1(sc, addr, buf, 2); 795 } 796 797 static void 798 urtwn_write_4(struct urtwn_softc *sc, uint16_t addr, uint32_t val) 799 { 800 uint8_t buf[4]; 801 802 DPRINTFN(DBG_REG, ("%s: %s: addr=0x%x, val=0x%x\n", 803 device_xname(sc->sc_dev), __func__, addr, val)); 804 805 buf[0] = (uint8_t)val; 806 buf[1] = (uint8_t)(val >> 8); 807 buf[2] = (uint8_t)(val >> 16); 808 buf[3] = (uint8_t)(val >> 24); 809 urtwn_write_region_1(sc, addr, buf, 4); 810 } 811 812 static int 813 urtwn_write_region(struct urtwn_softc *sc, uint16_t addr, uint8_t *buf, int len) 814 { 815 816 DPRINTFN(DBG_REG, ("%s: %s: addr=0x%x, len=0x%x\n", 817 device_xname(sc->sc_dev), __func__, addr, len)); 818 819 return urtwn_write_region_1(sc, addr, buf, len); 820 } 821 822 static int 823 urtwn_read_region_1(struct urtwn_softc *sc, uint16_t addr, uint8_t *buf, 824 int len) 825 { 826 usb_device_request_t req; 827 usbd_status error; 828 829 req.bmRequestType = UT_READ_VENDOR_DEVICE; 830 req.bRequest = R92C_REQ_REGS; 831 USETW(req.wValue, addr); 832 USETW(req.wIndex, 0); 833 USETW(req.wLength, len); 834 error = usbd_do_request(sc->sc_udev, &req, buf); 835 if (error != USBD_NORMAL_COMPLETION) { 836 DPRINTFN(DBG_REG, ("%s: %s: error=%d: addr=0x%x, len=%d\n", 837 device_xname(sc->sc_dev), __func__, error, addr, len)); 838 } 839 return (error); 840 } 841 842 static uint8_t 843 urtwn_read_1(struct urtwn_softc *sc, uint16_t addr) 844 { 845 uint8_t val; 846 847 if (urtwn_read_region_1(sc, addr, &val, 1) != USBD_NORMAL_COMPLETION) 848 return (0xff); 849 850 DPRINTFN(DBG_REG, ("%s: %s: addr=0x%x, val=0x%x\n", 851 device_xname(sc->sc_dev), __func__, addr, val)); 852 return (val); 853 } 854 855 static uint16_t 856 urtwn_read_2(struct urtwn_softc *sc, uint16_t addr) 857 { 858 uint8_t buf[2]; 859 uint16_t val; 860 861 if (urtwn_read_region_1(sc, addr, buf, 2) != USBD_NORMAL_COMPLETION) 862 return (0xffff); 863 864 val = LE_READ_2(&buf[0]); 865 DPRINTFN(DBG_REG, ("%s: %s: addr=0x%x, val=0x%x\n", 866 device_xname(sc->sc_dev), __func__, addr, val)); 867 return (val); 868 } 869 870 static uint32_t 871 urtwn_read_4(struct urtwn_softc *sc, uint16_t addr) 872 { 873 uint8_t buf[4]; 874 uint32_t val; 875 876 if (urtwn_read_region_1(sc, addr, buf, 4) != USBD_NORMAL_COMPLETION) 877 return (0xffffffff); 878 879 val = LE_READ_4(&buf[0]); 880 DPRINTFN(DBG_REG, ("%s: %s: addr=0x%x, val=0x%x\n", 881 device_xname(sc->sc_dev), __func__, addr, val)); 882 return (val); 883 } 884 885 static int 886 urtwn_fw_cmd(struct urtwn_softc *sc, uint8_t id, const void *buf, int len) 887 { 888 struct r92c_fw_cmd cmd; 889 uint8_t *cp; 890 int fwcur; 891 int ntries; 892 893 DPRINTFN(DBG_REG, ("%s: %s: id=%d, buf=%p, len=%d\n", 894 device_xname(sc->sc_dev), __func__, id, buf, len)); 895 896 KASSERT(mutex_owned(&sc->sc_write_mtx)); 897 898 mutex_enter(&sc->sc_fwcmd_mtx); 899 fwcur = sc->fwcur; 900 sc->fwcur = (sc->fwcur + 1) % R92C_H2C_NBOX; 901 mutex_exit(&sc->sc_fwcmd_mtx); 902 903 /* Wait for current FW box to be empty. */ 904 for (ntries = 0; ntries < 100; ntries++) { 905 if (!(urtwn_read_1(sc, R92C_HMETFR) & (1 << fwcur))) 906 break; 907 DELAY(1); 908 } 909 if (ntries == 100) { 910 aprint_error_dev(sc->sc_dev, 911 "could not send firmware command %d\n", id); 912 return (ETIMEDOUT); 913 } 914 915 memset(&cmd, 0, sizeof(cmd)); 916 KASSERT(len <= sizeof(cmd.msg)); 917 memcpy(cmd.msg, buf, len); 918 919 /* Write the first word last since that will trigger the FW. */ 920 cp = (uint8_t *)&cmd; 921 if (len >= 4) { 922 cmd.id = id | R92C_CMD_FLAG_EXT; 923 urtwn_write_region(sc, R92C_HMEBOX_EXT(fwcur), &cp[1], 2); 924 urtwn_write_4(sc, R92C_HMEBOX(fwcur), 925 cp[0] + (cp[3] << 8) + (cp[4] << 16) + (cp[5] << 24)); 926 } else { 927 cmd.id = id; 928 urtwn_write_region(sc, R92C_HMEBOX(fwcur), cp, len); 929 } 930 931 return (0); 932 } 933 934 static void 935 urtwn_rf_write(struct urtwn_softc *sc, int chain, uint8_t addr, uint32_t val) 936 { 937 938 urtwn_bb_write(sc, R92C_LSSI_PARAM(chain), 939 SM(R92C_LSSI_PARAM_ADDR, addr) | SM(R92C_LSSI_PARAM_DATA, val)); 940 } 941 942 static uint32_t 943 urtwn_rf_read(struct urtwn_softc *sc, int chain, uint8_t addr) 944 { 945 uint32_t reg[R92C_MAX_CHAINS], val; 946 947 reg[0] = urtwn_bb_read(sc, R92C_HSSI_PARAM2(0)); 948 if (chain != 0) { 949 reg[chain] = urtwn_bb_read(sc, R92C_HSSI_PARAM2(chain)); 950 } 951 952 urtwn_bb_write(sc, R92C_HSSI_PARAM2(0), 953 reg[0] & ~R92C_HSSI_PARAM2_READ_EDGE); 954 DELAY(1000); 955 956 urtwn_bb_write(sc, R92C_HSSI_PARAM2(chain), 957 RW(reg[chain], R92C_HSSI_PARAM2_READ_ADDR, addr) | 958 R92C_HSSI_PARAM2_READ_EDGE); 959 DELAY(1000); 960 961 urtwn_bb_write(sc, R92C_HSSI_PARAM2(0), 962 reg[0] | R92C_HSSI_PARAM2_READ_EDGE); 963 DELAY(1000); 964 965 if (urtwn_bb_read(sc, R92C_HSSI_PARAM1(chain)) & R92C_HSSI_PARAM1_PI) { 966 val = urtwn_bb_read(sc, R92C_HSPI_READBACK(chain)); 967 } else { 968 val = urtwn_bb_read(sc, R92C_LSSI_READBACK(chain)); 969 } 970 return (MS(val, R92C_LSSI_READBACK_DATA)); 971 } 972 973 static int 974 urtwn_llt_write(struct urtwn_softc *sc, uint32_t addr, uint32_t data) 975 { 976 int ntries; 977 978 KASSERT(mutex_owned(&sc->sc_write_mtx)); 979 980 urtwn_write_4(sc, R92C_LLT_INIT, 981 SM(R92C_LLT_INIT_OP, R92C_LLT_INIT_OP_WRITE) | 982 SM(R92C_LLT_INIT_ADDR, addr) | 983 SM(R92C_LLT_INIT_DATA, data)); 984 /* Wait for write operation to complete. */ 985 for (ntries = 0; ntries < 20; ntries++) { 986 if (MS(urtwn_read_4(sc, R92C_LLT_INIT), R92C_LLT_INIT_OP) == 987 R92C_LLT_INIT_OP_NO_ACTIVE) { 988 /* Done */ 989 return (0); 990 } 991 DELAY(5); 992 } 993 return (ETIMEDOUT); 994 } 995 996 static uint8_t 997 urtwn_efuse_read_1(struct urtwn_softc *sc, uint16_t addr) 998 { 999 uint32_t reg; 1000 int ntries; 1001 1002 KASSERT(mutex_owned(&sc->sc_write_mtx)); 1003 1004 reg = urtwn_read_4(sc, R92C_EFUSE_CTRL); 1005 reg = RW(reg, R92C_EFUSE_CTRL_ADDR, addr); 1006 reg &= ~R92C_EFUSE_CTRL_VALID; 1007 urtwn_write_4(sc, R92C_EFUSE_CTRL, reg); 1008 1009 /* Wait for read operation to complete. */ 1010 for (ntries = 0; ntries < 100; ntries++) { 1011 reg = urtwn_read_4(sc, R92C_EFUSE_CTRL); 1012 if (reg & R92C_EFUSE_CTRL_VALID) { 1013 /* Done */ 1014 return (MS(reg, R92C_EFUSE_CTRL_DATA)); 1015 } 1016 DELAY(5); 1017 } 1018 aprint_error_dev(sc->sc_dev, 1019 "could not read efuse byte at address 0x%04x\n", addr); 1020 return (0xff); 1021 } 1022 1023 static void 1024 urtwn_efuse_read(struct urtwn_softc *sc) 1025 { 1026 uint8_t *rom = (uint8_t *)&sc->rom; 1027 uint32_t reg; 1028 uint16_t addr = 0; 1029 uint8_t off, msk; 1030 size_t i; 1031 1032 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1033 1034 KASSERT(mutex_owned(&sc->sc_write_mtx)); 1035 1036 reg = urtwn_read_2(sc, R92C_SYS_ISO_CTRL); 1037 if (!(reg & R92C_SYS_ISO_CTRL_PWC_EV12V)) { 1038 urtwn_write_2(sc, R92C_SYS_ISO_CTRL, 1039 reg | R92C_SYS_ISO_CTRL_PWC_EV12V); 1040 } 1041 reg = urtwn_read_2(sc, R92C_SYS_FUNC_EN); 1042 if (!(reg & R92C_SYS_FUNC_EN_ELDR)) { 1043 urtwn_write_2(sc, R92C_SYS_FUNC_EN, 1044 reg | R92C_SYS_FUNC_EN_ELDR); 1045 } 1046 reg = urtwn_read_2(sc, R92C_SYS_CLKR); 1047 if ((reg & (R92C_SYS_CLKR_LOADER_EN | R92C_SYS_CLKR_ANA8M)) != 1048 (R92C_SYS_CLKR_LOADER_EN | R92C_SYS_CLKR_ANA8M)) { 1049 urtwn_write_2(sc, R92C_SYS_CLKR, 1050 reg | R92C_SYS_CLKR_LOADER_EN | R92C_SYS_CLKR_ANA8M); 1051 } 1052 memset(&sc->rom, 0xff, sizeof(sc->rom)); 1053 while (addr < 512) { 1054 reg = urtwn_efuse_read_1(sc, addr); 1055 if (reg == 0xff) 1056 break; 1057 addr++; 1058 off = reg >> 4; 1059 msk = reg & 0xf; 1060 for (i = 0; i < 4; i++) { 1061 if (msk & (1U << i)) 1062 continue; 1063 1064 rom[off * 8 + i * 2 + 0] = urtwn_efuse_read_1(sc, addr); 1065 addr++; 1066 rom[off * 8 + i * 2 + 1] = urtwn_efuse_read_1(sc, addr); 1067 addr++; 1068 } 1069 } 1070 #ifdef URTWN_DEBUG 1071 if (urtwn_debug & DBG_INIT) { 1072 /* Dump ROM content. */ 1073 printf("%s: %s", device_xname(sc->sc_dev), __func__); 1074 for (i = 0; i < (int)sizeof(sc->rom); i++) 1075 printf(":%02x", rom[i]); 1076 printf("\n"); 1077 } 1078 #endif 1079 } 1080 1081 static int 1082 urtwn_read_chipid(struct urtwn_softc *sc) 1083 { 1084 uint32_t reg; 1085 1086 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1087 1088 sc->chip = 0; 1089 reg = urtwn_read_4(sc, R92C_SYS_CFG); 1090 if (reg & R92C_SYS_CFG_TRP_VAUX_EN) { 1091 /* test chip, not supported */ 1092 return (EIO); 1093 } 1094 if (reg & R92C_SYS_CFG_TYPE_92C) { 1095 sc->chip |= URTWN_CHIP_92C; 1096 /* Check if it is a castrated 8192C. */ 1097 if (MS(urtwn_read_4(sc, R92C_HPON_FSM), 1098 R92C_HPON_FSM_CHIP_BONDING_ID) == 1099 R92C_HPON_FSM_CHIP_BONDING_ID_92C_1T2R) { 1100 sc->chip |= URTWN_CHIP_92C_1T2R; 1101 } 1102 } 1103 if (reg & R92C_SYS_CFG_VENDOR_UMC) { 1104 sc->chip |= URTWN_CHIP_UMC; 1105 if (MS(reg, R92C_SYS_CFG_CHIP_VER_RTL) == 0) { 1106 sc->chip |= URTWN_CHIP_UMC_A_CUT; 1107 } 1108 } 1109 return (0); 1110 } 1111 1112 #ifdef URTWN_DEBUG 1113 static void 1114 urtwn_dump_rom(struct urtwn_softc *sc, struct r92c_rom *rp) 1115 { 1116 1117 aprint_normal_dev(sc->sc_dev, 1118 "id 0x%04x, dbg_sel 0x%x, vid 0x%x, pid 0x%x\n", 1119 rp->id, rp->dbg_sel, rp->vid, rp->pid); 1120 1121 aprint_normal_dev(sc->sc_dev, 1122 "usb_opt 0x%x, ep_setting 0x%x, usb_phy 0x%x\n", 1123 rp->usb_opt, rp->ep_setting, rp->usb_phy); 1124 1125 aprint_normal_dev(sc->sc_dev, 1126 "macaddr %02x:%02x:%02x:%02x:%02x:%02x\n", 1127 rp->macaddr[0], rp->macaddr[1], 1128 rp->macaddr[2], rp->macaddr[3], 1129 rp->macaddr[4], rp->macaddr[5]); 1130 1131 aprint_normal_dev(sc->sc_dev, 1132 "string %s, subcustomer_id 0x%x\n", 1133 rp->string, rp->subcustomer_id); 1134 1135 aprint_normal_dev(sc->sc_dev, 1136 "cck_tx_pwr c0: %d %d %d, c1: %d %d %d\n", 1137 rp->cck_tx_pwr[0][0], rp->cck_tx_pwr[0][1], rp->cck_tx_pwr[0][2], 1138 rp->cck_tx_pwr[1][0], rp->cck_tx_pwr[1][1], rp->cck_tx_pwr[1][2]); 1139 1140 aprint_normal_dev(sc->sc_dev, 1141 "ht40_1s_tx_pwr c0 %d %d %d, c1 %d %d %d\n", 1142 rp->ht40_1s_tx_pwr[0][0], rp->ht40_1s_tx_pwr[0][1], 1143 rp->ht40_1s_tx_pwr[0][2], 1144 rp->ht40_1s_tx_pwr[1][0], rp->ht40_1s_tx_pwr[1][1], 1145 rp->ht40_1s_tx_pwr[1][2]); 1146 1147 aprint_normal_dev(sc->sc_dev, 1148 "ht40_2s_tx_pwr_diff c0: %d %d %d, c1: %d %d %d\n", 1149 rp->ht40_2s_tx_pwr_diff[0] & 0xf, rp->ht40_2s_tx_pwr_diff[1] & 0xf, 1150 rp->ht40_2s_tx_pwr_diff[2] & 0xf, 1151 rp->ht40_2s_tx_pwr_diff[0] >> 4, rp->ht40_2s_tx_pwr_diff[1] & 0xf, 1152 rp->ht40_2s_tx_pwr_diff[2] >> 4); 1153 1154 aprint_normal_dev(sc->sc_dev, 1155 "ht20_tx_pwr_diff c0: %d %d %d, c1: %d %d %d\n", 1156 rp->ht20_tx_pwr_diff[0] & 0xf, rp->ht20_tx_pwr_diff[1] & 0xf, 1157 rp->ht20_tx_pwr_diff[2] & 0xf, 1158 rp->ht20_tx_pwr_diff[0] >> 4, rp->ht20_tx_pwr_diff[1] >> 4, 1159 rp->ht20_tx_pwr_diff[2] >> 4); 1160 1161 aprint_normal_dev(sc->sc_dev, 1162 "ofdm_tx_pwr_diff c0: %d %d %d, c1: %d %d %d\n", 1163 rp->ofdm_tx_pwr_diff[0] & 0xf, rp->ofdm_tx_pwr_diff[1] & 0xf, 1164 rp->ofdm_tx_pwr_diff[2] & 0xf, 1165 rp->ofdm_tx_pwr_diff[0] >> 4, rp->ofdm_tx_pwr_diff[1] >> 4, 1166 rp->ofdm_tx_pwr_diff[2] >> 4); 1167 1168 aprint_normal_dev(sc->sc_dev, 1169 "ht40_max_pwr_offset c0: %d %d %d, c1: %d %d %d\n", 1170 rp->ht40_max_pwr[0] & 0xf, rp->ht40_max_pwr[1] & 0xf, 1171 rp->ht40_max_pwr[2] & 0xf, 1172 rp->ht40_max_pwr[0] >> 4, rp->ht40_max_pwr[1] >> 4, 1173 rp->ht40_max_pwr[2] >> 4); 1174 1175 aprint_normal_dev(sc->sc_dev, 1176 "ht20_max_pwr_offset c0: %d %d %d, c1: %d %d %d\n", 1177 rp->ht20_max_pwr[0] & 0xf, rp->ht20_max_pwr[1] & 0xf, 1178 rp->ht20_max_pwr[2] & 0xf, 1179 rp->ht20_max_pwr[0] >> 4, rp->ht20_max_pwr[1] >> 4, 1180 rp->ht20_max_pwr[2] >> 4); 1181 1182 aprint_normal_dev(sc->sc_dev, 1183 "xtal_calib %d, tssi %d %d, thermal %d\n", 1184 rp->xtal_calib, rp->tssi[0], rp->tssi[1], rp->thermal_meter); 1185 1186 aprint_normal_dev(sc->sc_dev, 1187 "rf_opt1 0x%x, rf_opt2 0x%x, rf_opt3 0x%x, rf_opt4 0x%x\n", 1188 rp->rf_opt1, rp->rf_opt2, rp->rf_opt3, rp->rf_opt4); 1189 1190 aprint_normal_dev(sc->sc_dev, 1191 "channnel_plan %d, version %d customer_id 0x%x\n", 1192 rp->channel_plan, rp->version, rp->curstomer_id); 1193 } 1194 #endif 1195 1196 static void 1197 urtwn_read_rom(struct urtwn_softc *sc) 1198 { 1199 struct ieee80211com *ic = &sc->sc_ic; 1200 struct r92c_rom *rom = &sc->rom; 1201 1202 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1203 1204 mutex_enter(&sc->sc_write_mtx); 1205 1206 /* Read full ROM image. */ 1207 urtwn_efuse_read(sc); 1208 #ifdef URTWN_DEBUG 1209 if (urtwn_debug & DBG_REG) 1210 urtwn_dump_rom(sc, rom); 1211 #endif 1212 1213 /* XXX Weird but this is what the vendor driver does. */ 1214 sc->pa_setting = urtwn_efuse_read_1(sc, 0x1fa); 1215 sc->board_type = MS(rom->rf_opt1, R92C_ROM_RF1_BOARD_TYPE); 1216 sc->regulatory = MS(rom->rf_opt1, R92C_ROM_RF1_REGULATORY); 1217 1218 DPRINTFN(DBG_INIT, 1219 ("%s: %s: PA setting=0x%x, board=0x%x, regulatory=%d\n", 1220 device_xname(sc->sc_dev), __func__, sc->pa_setting, 1221 sc->board_type, sc->regulatory)); 1222 1223 IEEE80211_ADDR_COPY(ic->ic_myaddr, rom->macaddr); 1224 1225 mutex_exit(&sc->sc_write_mtx); 1226 } 1227 1228 static int 1229 urtwn_media_change(struct ifnet *ifp) 1230 { 1231 #ifdef URTWN_DEBUG 1232 struct urtwn_softc *sc = ifp->if_softc; 1233 #endif 1234 int error; 1235 1236 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1237 1238 if ((error = ieee80211_media_change(ifp)) != ENETRESET) 1239 return (error); 1240 1241 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1242 (IFF_UP | IFF_RUNNING)) { 1243 urtwn_init(ifp); 1244 } 1245 return (0); 1246 } 1247 1248 /* 1249 * Initialize rate adaptation in firmware. 1250 */ 1251 static int 1252 urtwn_ra_init(struct urtwn_softc *sc) 1253 { 1254 static const uint8_t map[] = { 1255 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 1256 }; 1257 struct ieee80211com *ic = &sc->sc_ic; 1258 struct ieee80211_node *ni = ic->ic_bss; 1259 struct ieee80211_rateset *rs = &ni->ni_rates; 1260 struct r92c_fw_cmd_macid_cfg cmd; 1261 uint32_t rates, basicrates; 1262 uint32_t mask; 1263 uint8_t mode; 1264 size_t maxrate, maxbasicrate, i, j; 1265 int error; 1266 1267 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1268 1269 KASSERT(mutex_owned(&sc->sc_write_mtx)); 1270 1271 /* Get normal and basic rates mask. */ 1272 rates = basicrates = 0; 1273 maxrate = maxbasicrate = 0; 1274 for (i = 0; i < rs->rs_nrates; i++) { 1275 /* Convert 802.11 rate to HW rate index. */ 1276 for (j = 0; j < __arraycount(map); j++) { 1277 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == map[j]) { 1278 break; 1279 } 1280 } 1281 if (j == __arraycount(map)) { 1282 /* Unknown rate, skip. */ 1283 continue; 1284 } 1285 1286 rates |= 1U << j; 1287 if (j > maxrate) { 1288 maxrate = j; 1289 } 1290 1291 if (rs->rs_rates[i] & IEEE80211_RATE_BASIC) { 1292 basicrates |= 1U << j; 1293 if (j > maxbasicrate) { 1294 maxbasicrate = j; 1295 } 1296 } 1297 } 1298 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1299 mode = R92C_RAID_11B; 1300 } else { 1301 mode = R92C_RAID_11BG; 1302 } 1303 DPRINTFN(DBG_INIT, ("%s: %s: mode=0x%x rates=0x%x, basicrates=0x%x, " 1304 "maxrate=%zx, maxbasicrate=%zx\n", 1305 device_xname(sc->sc_dev), __func__, mode, rates, basicrates, 1306 maxrate, maxbasicrate)); 1307 if (basicrates == 0) { 1308 basicrates |= 1; /* add 1Mbps */ 1309 } 1310 1311 /* Set rates mask for group addressed frames. */ 1312 cmd.macid = URTWN_MACID_BC | URTWN_MACID_VALID; 1313 mask = (mode << 28) | basicrates; 1314 cmd.mask[0] = (uint8_t)mask; 1315 cmd.mask[1] = (uint8_t)(mask >> 8); 1316 cmd.mask[2] = (uint8_t)(mask >> 16); 1317 cmd.mask[3] = (uint8_t)(mask >> 24); 1318 error = urtwn_fw_cmd(sc, R92C_CMD_MACID_CONFIG, &cmd, sizeof(cmd)); 1319 if (error != 0) { 1320 aprint_error_dev(sc->sc_dev, 1321 "could not add broadcast station\n"); 1322 return (error); 1323 } 1324 /* Set initial MRR rate. */ 1325 DPRINTFN(DBG_INIT, ("%s: %s: maxbasicrate=%zd\n", 1326 device_xname(sc->sc_dev), __func__, maxbasicrate)); 1327 urtwn_write_1(sc, R92C_INIDATA_RATE_SEL(URTWN_MACID_BC), maxbasicrate); 1328 1329 /* Set rates mask for unicast frames. */ 1330 cmd.macid = URTWN_MACID_BSS | URTWN_MACID_VALID; 1331 mask = (mode << 28) | rates; 1332 cmd.mask[0] = (uint8_t)mask; 1333 cmd.mask[1] = (uint8_t)(mask >> 8); 1334 cmd.mask[2] = (uint8_t)(mask >> 16); 1335 cmd.mask[3] = (uint8_t)(mask >> 24); 1336 error = urtwn_fw_cmd(sc, R92C_CMD_MACID_CONFIG, &cmd, sizeof(cmd)); 1337 if (error != 0) { 1338 aprint_error_dev(sc->sc_dev, "could not add BSS station\n"); 1339 return (error); 1340 } 1341 /* Set initial MRR rate. */ 1342 DPRINTFN(DBG_INIT, ("%s: %s: maxrate=%zd\n", device_xname(sc->sc_dev), 1343 __func__, maxrate)); 1344 urtwn_write_1(sc, R92C_INIDATA_RATE_SEL(URTWN_MACID_BSS), maxrate); 1345 1346 /* Indicate highest supported rate. */ 1347 ni->ni_txrate = rs->rs_nrates - 1; 1348 1349 return (0); 1350 } 1351 1352 static int 1353 urtwn_get_nettype(struct urtwn_softc *sc) 1354 { 1355 struct ieee80211com *ic = &sc->sc_ic; 1356 int type; 1357 1358 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1359 1360 switch (ic->ic_opmode) { 1361 case IEEE80211_M_STA: 1362 type = R92C_CR_NETTYPE_INFRA; 1363 break; 1364 1365 case IEEE80211_M_IBSS: 1366 type = R92C_CR_NETTYPE_ADHOC; 1367 break; 1368 1369 default: 1370 type = R92C_CR_NETTYPE_NOLINK; 1371 break; 1372 } 1373 1374 return (type); 1375 } 1376 1377 static void 1378 urtwn_set_nettype0_msr(struct urtwn_softc *sc, uint8_t type) 1379 { 1380 uint8_t reg; 1381 1382 DPRINTFN(DBG_FN, ("%s: %s: type=%d\n", device_xname(sc->sc_dev), 1383 __func__, type)); 1384 1385 KASSERT(mutex_owned(&sc->sc_write_mtx)); 1386 1387 reg = urtwn_read_1(sc, R92C_CR + 2) & 0x0c; 1388 urtwn_write_1(sc, R92C_CR + 2, reg | type); 1389 } 1390 1391 static void 1392 urtwn_tsf_sync_enable(struct urtwn_softc *sc) 1393 { 1394 struct ieee80211_node *ni = sc->sc_ic.ic_bss; 1395 uint64_t tsf; 1396 1397 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1398 1399 KASSERT(mutex_owned(&sc->sc_write_mtx)); 1400 1401 /* Enable TSF synchronization. */ 1402 urtwn_write_1(sc, R92C_BCN_CTRL, 1403 urtwn_read_1(sc, R92C_BCN_CTRL) & ~R92C_BCN_CTRL_DIS_TSF_UDT0); 1404 1405 /* Correct TSF */ 1406 urtwn_write_1(sc, R92C_BCN_CTRL, 1407 urtwn_read_1(sc, R92C_BCN_CTRL) & ~R92C_BCN_CTRL_EN_BCN); 1408 1409 /* Set initial TSF. */ 1410 tsf = ni->ni_tstamp.tsf; 1411 tsf = le64toh(tsf); 1412 tsf = tsf - (tsf % (ni->ni_intval * IEEE80211_DUR_TU)); 1413 tsf -= IEEE80211_DUR_TU; 1414 urtwn_write_4(sc, R92C_TSFTR + 0, (uint32_t)tsf); 1415 urtwn_write_4(sc, R92C_TSFTR + 4, (uint32_t)(tsf >> 32)); 1416 1417 urtwn_write_1(sc, R92C_BCN_CTRL, 1418 urtwn_read_1(sc, R92C_BCN_CTRL) | R92C_BCN_CTRL_EN_BCN); 1419 } 1420 1421 static void 1422 urtwn_set_led(struct urtwn_softc *sc, int led, int on) 1423 { 1424 uint8_t reg; 1425 1426 DPRINTFN(DBG_FN, ("%s: %s: led=%d, on=%d\n", device_xname(sc->sc_dev), 1427 __func__, led, on)); 1428 1429 KASSERT(mutex_owned(&sc->sc_write_mtx)); 1430 1431 if (led == URTWN_LED_LINK) { 1432 reg = urtwn_read_1(sc, R92C_LEDCFG0) & 0x70; 1433 if (!on) { 1434 reg |= R92C_LEDCFG0_DIS; 1435 } 1436 urtwn_write_1(sc, R92C_LEDCFG0, reg); 1437 sc->ledlink = on; /* Save LED state. */ 1438 } 1439 } 1440 1441 static void 1442 urtwn_calib_to(void *arg) 1443 { 1444 struct urtwn_softc *sc = arg; 1445 1446 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1447 1448 if (sc->sc_dying) 1449 return; 1450 1451 /* Do it in a process context. */ 1452 urtwn_do_async(sc, urtwn_calib_to_cb, NULL, 0); 1453 } 1454 1455 /* ARGSUSED */ 1456 static void 1457 urtwn_calib_to_cb(struct urtwn_softc *sc, void *arg) 1458 { 1459 struct r92c_fw_cmd_rssi cmd; 1460 1461 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1462 1463 if (sc->sc_ic.ic_state != IEEE80211_S_RUN) 1464 goto restart_timer; 1465 1466 mutex_enter(&sc->sc_write_mtx); 1467 if (sc->avg_pwdb != -1) { 1468 /* Indicate Rx signal strength to FW for rate adaptation. */ 1469 memset(&cmd, 0, sizeof(cmd)); 1470 cmd.macid = 0; /* BSS. */ 1471 cmd.pwdb = sc->avg_pwdb; 1472 DPRINTFN(DBG_RF, ("%s: %s: sending RSSI command avg=%d\n", 1473 device_xname(sc->sc_dev), __func__, sc->avg_pwdb)); 1474 urtwn_fw_cmd(sc, R92C_CMD_RSSI_SETTING, &cmd, sizeof(cmd)); 1475 } 1476 1477 /* Do temperature compensation. */ 1478 urtwn_temp_calib(sc); 1479 mutex_exit(&sc->sc_write_mtx); 1480 1481 restart_timer: 1482 if (!sc->sc_dying) { 1483 /* Restart calibration timer. */ 1484 callout_schedule(&sc->sc_calib_to, hz); 1485 } 1486 } 1487 1488 static void 1489 urtwn_next_scan(void *arg) 1490 { 1491 struct urtwn_softc *sc = arg; 1492 int s; 1493 1494 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1495 1496 if (sc->sc_dying) 1497 return; 1498 1499 s = splnet(); 1500 if (sc->sc_ic.ic_state == IEEE80211_S_SCAN) 1501 ieee80211_next_scan(&sc->sc_ic); 1502 splx(s); 1503 } 1504 1505 static void 1506 urtwn_newassoc(struct ieee80211_node *ni, int isnew) 1507 { 1508 DPRINTFN(DBG_FN, ("%s: new node %s\n", __func__, 1509 ether_sprintf(ni->ni_macaddr))); 1510 /* start with lowest Tx rate */ 1511 ni->ni_txrate = 0; 1512 } 1513 1514 static int 1515 urtwn_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1516 { 1517 struct urtwn_softc *sc = ic->ic_ifp->if_softc; 1518 struct urtwn_cmd_newstate cmd; 1519 1520 DPRINTFN(DBG_FN, ("%s: %s: nstate=%s(%d), arg=%d\n", 1521 device_xname(sc->sc_dev), __func__, 1522 ieee80211_state_name[nstate], nstate, arg)); 1523 1524 callout_stop(&sc->sc_scan_to); 1525 callout_stop(&sc->sc_calib_to); 1526 1527 /* Do it in a process context. */ 1528 cmd.state = nstate; 1529 cmd.arg = arg; 1530 urtwn_do_async(sc, urtwn_newstate_cb, &cmd, sizeof(cmd)); 1531 return (0); 1532 } 1533 1534 static void 1535 urtwn_newstate_cb(struct urtwn_softc *sc, void *arg) 1536 { 1537 struct urtwn_cmd_newstate *cmd = arg; 1538 struct ieee80211com *ic = &sc->sc_ic; 1539 struct ieee80211_node *ni; 1540 enum ieee80211_state ostate = ic->ic_state; 1541 enum ieee80211_state nstate = cmd->state; 1542 uint32_t reg; 1543 uint8_t sifs_time, msr; 1544 int s; 1545 1546 DPRINTFN(DBG_FN|DBG_STM, ("%s: %s: %s(%d)->%s(%d)\n", 1547 device_xname(sc->sc_dev), __func__, 1548 ieee80211_state_name[ostate], ostate, 1549 ieee80211_state_name[nstate], nstate)); 1550 1551 s = splnet(); 1552 mutex_enter(&sc->sc_write_mtx); 1553 1554 callout_stop(&sc->sc_scan_to); 1555 callout_stop(&sc->sc_calib_to); 1556 1557 switch (ostate) { 1558 case IEEE80211_S_INIT: 1559 break; 1560 1561 case IEEE80211_S_SCAN: 1562 if (nstate != IEEE80211_S_SCAN) { 1563 /* 1564 * End of scanning 1565 */ 1566 /* flush 4-AC Queue after site_survey */ 1567 urtwn_write_1(sc, R92C_TXPAUSE, 0x0); 1568 1569 /* Allow Rx from our BSSID only. */ 1570 urtwn_write_4(sc, R92C_RCR, 1571 urtwn_read_4(sc, R92C_RCR) | 1572 R92C_RCR_CBSSID_DATA | R92C_RCR_CBSSID_BCN); 1573 } 1574 break; 1575 1576 case IEEE80211_S_AUTH: 1577 case IEEE80211_S_ASSOC: 1578 break; 1579 1580 case IEEE80211_S_RUN: 1581 /* Turn link LED off. */ 1582 urtwn_set_led(sc, URTWN_LED_LINK, 0); 1583 1584 /* Set media status to 'No Link'. */ 1585 urtwn_set_nettype0_msr(sc, R92C_CR_NETTYPE_NOLINK); 1586 1587 /* Stop Rx of data frames. */ 1588 urtwn_write_2(sc, R92C_RXFLTMAP2, 0); 1589 1590 /* Reset TSF. */ 1591 urtwn_write_1(sc, R92C_DUAL_TSF_RST, 0x03); 1592 1593 /* Disable TSF synchronization. */ 1594 urtwn_write_1(sc, R92C_BCN_CTRL, 1595 urtwn_read_1(sc, R92C_BCN_CTRL) | 1596 R92C_BCN_CTRL_DIS_TSF_UDT0); 1597 1598 /* Back to 20MHz mode */ 1599 urtwn_set_chan(sc, ic->ic_curchan, 1600 IEEE80211_HTINFO_2NDCHAN_NONE); 1601 1602 if (ic->ic_opmode == IEEE80211_M_IBSS || 1603 ic->ic_opmode == IEEE80211_M_HOSTAP) { 1604 /* Stop BCN */ 1605 urtwn_write_1(sc, R92C_BCN_CTRL, 1606 urtwn_read_1(sc, R92C_BCN_CTRL) & 1607 ~(R92C_BCN_CTRL_EN_BCN | R92C_BCN_CTRL_TXBCN_RPT)); 1608 } 1609 1610 /* Reset EDCA parameters. */ 1611 urtwn_write_4(sc, R92C_EDCA_VO_PARAM, 0x002f3217); 1612 urtwn_write_4(sc, R92C_EDCA_VI_PARAM, 0x005e4317); 1613 urtwn_write_4(sc, R92C_EDCA_BE_PARAM, 0x00105320); 1614 urtwn_write_4(sc, R92C_EDCA_BK_PARAM, 0x0000a444); 1615 1616 /* flush all cam entries */ 1617 urtwn_cam_init(sc); 1618 break; 1619 } 1620 1621 switch (nstate) { 1622 case IEEE80211_S_INIT: 1623 /* Turn link LED off. */ 1624 urtwn_set_led(sc, URTWN_LED_LINK, 0); 1625 break; 1626 1627 case IEEE80211_S_SCAN: 1628 if (ostate != IEEE80211_S_SCAN) { 1629 /* 1630 * Begin of scanning 1631 */ 1632 1633 /* Set gain for scanning. */ 1634 reg = urtwn_bb_read(sc, R92C_OFDM0_AGCCORE1(0)); 1635 reg = RW(reg, R92C_OFDM0_AGCCORE1_GAIN, 0x20); 1636 urtwn_bb_write(sc, R92C_OFDM0_AGCCORE1(0), reg); 1637 1638 reg = urtwn_bb_read(sc, R92C_OFDM0_AGCCORE1(1)); 1639 reg = RW(reg, R92C_OFDM0_AGCCORE1_GAIN, 0x20); 1640 urtwn_bb_write(sc, R92C_OFDM0_AGCCORE1(1), reg); 1641 1642 /* Set media status to 'No Link'. */ 1643 urtwn_set_nettype0_msr(sc, R92C_CR_NETTYPE_NOLINK); 1644 1645 /* Allow Rx from any BSSID. */ 1646 urtwn_write_4(sc, R92C_RCR, 1647 urtwn_read_4(sc, R92C_RCR) & 1648 ~(R92C_RCR_CBSSID_DATA | R92C_RCR_CBSSID_BCN)); 1649 1650 /* Stop Rx of data frames. */ 1651 urtwn_write_2(sc, R92C_RXFLTMAP2, 0); 1652 1653 /* Disable update TSF */ 1654 urtwn_write_1(sc, R92C_BCN_CTRL, 1655 urtwn_read_1(sc, R92C_BCN_CTRL) | 1656 R92C_BCN_CTRL_DIS_TSF_UDT0); 1657 } 1658 1659 /* Make link LED blink during scan. */ 1660 urtwn_set_led(sc, URTWN_LED_LINK, !sc->ledlink); 1661 1662 /* Pause AC Tx queues. */ 1663 urtwn_write_1(sc, R92C_TXPAUSE, 1664 urtwn_read_1(sc, R92C_TXPAUSE) | 0x0f); 1665 1666 urtwn_set_chan(sc, ic->ic_curchan, 1667 IEEE80211_HTINFO_2NDCHAN_NONE); 1668 1669 /* Start periodic scan. */ 1670 if (!sc->sc_dying) 1671 callout_schedule(&sc->sc_scan_to, hz / 5); 1672 break; 1673 1674 case IEEE80211_S_AUTH: 1675 /* Set initial gain under link. */ 1676 reg = urtwn_bb_read(sc, R92C_OFDM0_AGCCORE1(0)); 1677 #ifdef doaslinux 1678 reg = RW(reg, R92C_OFDM0_AGCCORE1_GAIN, 0x32); 1679 #else 1680 reg = RW(reg, R92C_OFDM0_AGCCORE1_GAIN, 0x20); 1681 #endif 1682 urtwn_bb_write(sc, R92C_OFDM0_AGCCORE1(0), reg); 1683 1684 reg = urtwn_bb_read(sc, R92C_OFDM0_AGCCORE1(1)); 1685 #ifdef doaslinux 1686 reg = RW(reg, R92C_OFDM0_AGCCORE1_GAIN, 0x32); 1687 #else 1688 reg = RW(reg, R92C_OFDM0_AGCCORE1_GAIN, 0x20); 1689 #endif 1690 urtwn_bb_write(sc, R92C_OFDM0_AGCCORE1(1), reg); 1691 1692 /* Set media status to 'No Link'. */ 1693 urtwn_set_nettype0_msr(sc, R92C_CR_NETTYPE_NOLINK); 1694 1695 /* Allow Rx from any BSSID. */ 1696 urtwn_write_4(sc, R92C_RCR, 1697 urtwn_read_4(sc, R92C_RCR) & 1698 ~(R92C_RCR_CBSSID_DATA | R92C_RCR_CBSSID_BCN)); 1699 1700 urtwn_set_chan(sc, ic->ic_curchan, 1701 IEEE80211_HTINFO_2NDCHAN_NONE); 1702 break; 1703 1704 case IEEE80211_S_ASSOC: 1705 break; 1706 1707 case IEEE80211_S_RUN: 1708 ni = ic->ic_bss; 1709 1710 /* XXX: Set 20MHz mode */ 1711 urtwn_set_chan(sc, ic->ic_curchan, 1712 IEEE80211_HTINFO_2NDCHAN_NONE); 1713 1714 if (ic->ic_opmode == IEEE80211_M_MONITOR) { 1715 /* Back to 20MHz mode */ 1716 urtwn_set_chan(sc, ic->ic_curchan, 1717 IEEE80211_HTINFO_2NDCHAN_NONE); 1718 1719 /* Set media status to 'No Link'. */ 1720 urtwn_set_nettype0_msr(sc, R92C_CR_NETTYPE_NOLINK); 1721 1722 /* Enable Rx of data frames. */ 1723 urtwn_write_2(sc, R92C_RXFLTMAP2, 0xffff); 1724 1725 /* Allow Rx from any BSSID. */ 1726 urtwn_write_4(sc, R92C_RCR, 1727 urtwn_read_4(sc, R92C_RCR) & 1728 ~(R92C_RCR_CBSSID_DATA | R92C_RCR_CBSSID_BCN)); 1729 1730 /* Accept Rx data/control/management frames */ 1731 urtwn_write_4(sc, R92C_RCR, 1732 urtwn_read_4(sc, R92C_RCR) | 1733 R92C_RCR_ADF | R92C_RCR_ACF | R92C_RCR_AMF); 1734 1735 /* Turn link LED on. */ 1736 urtwn_set_led(sc, URTWN_LED_LINK, 1); 1737 break; 1738 } 1739 1740 /* Set media status to 'Associated'. */ 1741 urtwn_set_nettype0_msr(sc, urtwn_get_nettype(sc)); 1742 1743 /* Set BSSID. */ 1744 urtwn_write_4(sc, R92C_BSSID + 0, LE_READ_4(&ni->ni_bssid[0])); 1745 urtwn_write_4(sc, R92C_BSSID + 4, LE_READ_2(&ni->ni_bssid[4])); 1746 1747 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1748 urtwn_write_1(sc, R92C_INIRTS_RATE_SEL, 0); 1749 } else { 1750 /* 802.11b/g */ 1751 urtwn_write_1(sc, R92C_INIRTS_RATE_SEL, 3); 1752 } 1753 1754 /* Enable Rx of data frames. */ 1755 urtwn_write_2(sc, R92C_RXFLTMAP2, 0xffff); 1756 1757 /* Set beacon interval. */ 1758 urtwn_write_2(sc, R92C_BCN_INTERVAL, ni->ni_intval); 1759 1760 msr = urtwn_read_1(sc, R92C_MSR); 1761 msr &= 0xfc; 1762 switch (ic->ic_opmode) { 1763 case IEEE80211_M_STA: 1764 /* Allow Rx from our BSSID only. */ 1765 urtwn_write_4(sc, R92C_RCR, 1766 urtwn_read_4(sc, R92C_RCR) | 1767 R92C_RCR_CBSSID_DATA | R92C_RCR_CBSSID_BCN); 1768 1769 /* Enable TSF synchronization. */ 1770 urtwn_tsf_sync_enable(sc); 1771 1772 msr |= R92C_MSR_INFRA; 1773 break; 1774 default: 1775 msr |= R92C_MSR_ADHOC; 1776 break; 1777 case IEEE80211_M_HOSTAP: 1778 urtwn_write_2(sc, R92C_BCNTCFG, 0x000f); 1779 1780 /* Allow Rx from any BSSID. */ 1781 urtwn_write_4(sc, R92C_RCR, 1782 urtwn_read_4(sc, R92C_RCR) & 1783 ~(R92C_RCR_CBSSID_DATA | R92C_RCR_CBSSID_BCN)); 1784 1785 /* Reset TSF timer to zero. */ 1786 reg = urtwn_read_4(sc, R92C_TCR); 1787 reg &= ~0x01; 1788 urtwn_write_4(sc, R92C_TCR, reg); 1789 reg |= 0x01; 1790 urtwn_write_4(sc, R92C_TCR, reg); 1791 1792 msr |= R92C_MSR_AP; 1793 break; 1794 } 1795 urtwn_write_1(sc, R92C_MSR, msr); 1796 1797 sifs_time = 10; 1798 urtwn_write_1(sc, R92C_SIFS_CCK + 1, sifs_time); 1799 urtwn_write_1(sc, R92C_SIFS_OFDM + 1, sifs_time); 1800 urtwn_write_1(sc, R92C_SPEC_SIFS + 1, sifs_time); 1801 urtwn_write_1(sc, R92C_MAC_SPEC_SIFS + 1, sifs_time); 1802 urtwn_write_1(sc, R92C_R2T_SIFS + 1, sifs_time); 1803 urtwn_write_1(sc, R92C_T2T_SIFS + 1, sifs_time); 1804 1805 /* Intialize rate adaptation. */ 1806 urtwn_ra_init(sc); 1807 1808 /* Turn link LED on. */ 1809 urtwn_set_led(sc, URTWN_LED_LINK, 1); 1810 1811 /* Reset average RSSI. */ 1812 sc->avg_pwdb = -1; 1813 1814 /* Reset temperature calibration state machine. */ 1815 sc->thcal_state = 0; 1816 sc->thcal_lctemp = 0; 1817 1818 /* Start periodic calibration. */ 1819 if (!sc->sc_dying) 1820 callout_schedule(&sc->sc_calib_to, hz); 1821 break; 1822 } 1823 1824 (*sc->sc_newstate)(ic, nstate, cmd->arg); 1825 1826 mutex_exit(&sc->sc_write_mtx); 1827 splx(s); 1828 } 1829 1830 static int 1831 urtwn_wme_update(struct ieee80211com *ic) 1832 { 1833 struct urtwn_softc *sc = ic->ic_ifp->if_softc; 1834 1835 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 1836 1837 /* don't override default WME values if WME is not actually enabled */ 1838 if (!(ic->ic_flags & IEEE80211_F_WME)) 1839 return (0); 1840 1841 /* Do it in a process context. */ 1842 urtwn_do_async(sc, urtwn_wme_update_cb, NULL, 0); 1843 return (0); 1844 } 1845 1846 static void 1847 urtwn_wme_update_cb(struct urtwn_softc *sc, void *arg) 1848 { 1849 static const uint16_t ac2reg[WME_NUM_AC] = { 1850 R92C_EDCA_BE_PARAM, 1851 R92C_EDCA_BK_PARAM, 1852 R92C_EDCA_VI_PARAM, 1853 R92C_EDCA_VO_PARAM 1854 }; 1855 struct ieee80211com *ic = &sc->sc_ic; 1856 const struct wmeParams *wmep; 1857 int ac, aifs, slottime; 1858 int s; 1859 1860 DPRINTFN(DBG_FN|DBG_STM, ("%s: %s\n", device_xname(sc->sc_dev), 1861 __func__)); 1862 1863 s = splnet(); 1864 mutex_enter(&sc->sc_write_mtx); 1865 slottime = (ic->ic_flags & IEEE80211_F_SHSLOT) ? 9 : 20; 1866 for (ac = 0; ac < WME_NUM_AC; ac++) { 1867 wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1868 /* AIFS[AC] = AIFSN[AC] * aSlotTime + aSIFSTime. */ 1869 aifs = wmep->wmep_aifsn * slottime + 10; 1870 urtwn_write_4(sc, ac2reg[ac], 1871 SM(R92C_EDCA_PARAM_TXOP, wmep->wmep_txopLimit) | 1872 SM(R92C_EDCA_PARAM_ECWMIN, wmep->wmep_logcwmin) | 1873 SM(R92C_EDCA_PARAM_ECWMAX, wmep->wmep_logcwmax) | 1874 SM(R92C_EDCA_PARAM_AIFS, aifs)); 1875 } 1876 mutex_exit(&sc->sc_write_mtx); 1877 splx(s); 1878 } 1879 1880 static void 1881 urtwn_update_avgrssi(struct urtwn_softc *sc, int rate, int8_t rssi) 1882 { 1883 int pwdb; 1884 1885 DPRINTFN(DBG_FN, ("%s: %s: rate=%d, rsst=%d\n", 1886 device_xname(sc->sc_dev), __func__, rate, rssi)); 1887 1888 /* Convert antenna signal to percentage. */ 1889 if (rssi <= -100 || rssi >= 20) 1890 pwdb = 0; 1891 else if (rssi >= 0) 1892 pwdb = 100; 1893 else 1894 pwdb = 100 + rssi; 1895 if (rate <= 3) { 1896 /* CCK gain is smaller than OFDM/MCS gain. */ 1897 pwdb += 6; 1898 if (pwdb > 100) 1899 pwdb = 100; 1900 if (pwdb <= 14) 1901 pwdb -= 4; 1902 else if (pwdb <= 26) 1903 pwdb -= 8; 1904 else if (pwdb <= 34) 1905 pwdb -= 6; 1906 else if (pwdb <= 42) 1907 pwdb -= 2; 1908 } 1909 if (sc->avg_pwdb == -1) /* Init. */ 1910 sc->avg_pwdb = pwdb; 1911 else if (sc->avg_pwdb < pwdb) 1912 sc->avg_pwdb = ((sc->avg_pwdb * 19 + pwdb) / 20) + 1; 1913 else 1914 sc->avg_pwdb = ((sc->avg_pwdb * 19 + pwdb) / 20); 1915 1916 DPRINTFN(DBG_RF, ("%s: %s: rate=%d rssi=%d PWDB=%d EMA=%d\n", 1917 device_xname(sc->sc_dev), __func__, 1918 rate, rssi, pwdb, sc->avg_pwdb)); 1919 } 1920 1921 static int8_t 1922 urtwn_get_rssi(struct urtwn_softc *sc, int rate, void *physt) 1923 { 1924 static const int8_t cckoff[] = { 16, -12, -26, -46 }; 1925 struct r92c_rx_phystat *phy; 1926 struct r92c_rx_cck *cck; 1927 uint8_t rpt; 1928 int8_t rssi; 1929 1930 DPRINTFN(DBG_FN, ("%s: %s: rate=%d\n", device_xname(sc->sc_dev), 1931 __func__, rate)); 1932 1933 if (rate <= 3) { 1934 cck = (struct r92c_rx_cck *)physt; 1935 if (ISSET(sc->sc_flags, URTWN_FLAG_CCK_HIPWR)) { 1936 rpt = (cck->agc_rpt >> 5) & 0x3; 1937 rssi = (cck->agc_rpt & 0x1f) << 1; 1938 } else { 1939 rpt = (cck->agc_rpt >> 6) & 0x3; 1940 rssi = cck->agc_rpt & 0x3e; 1941 } 1942 rssi = cckoff[rpt] - rssi; 1943 } else { /* OFDM/HT. */ 1944 phy = (struct r92c_rx_phystat *)physt; 1945 rssi = ((le32toh(phy->phydw1) >> 1) & 0x7f) - 110; 1946 } 1947 return (rssi); 1948 } 1949 1950 static void 1951 urtwn_rx_frame(struct urtwn_softc *sc, uint8_t *buf, int pktlen) 1952 { 1953 struct ieee80211com *ic = &sc->sc_ic; 1954 struct ifnet *ifp = ic->ic_ifp; 1955 struct ieee80211_frame *wh; 1956 struct ieee80211_node *ni; 1957 struct r92c_rx_stat *stat; 1958 uint32_t rxdw0, rxdw3; 1959 struct mbuf *m; 1960 uint8_t rate; 1961 int8_t rssi = 0; 1962 int s, infosz; 1963 1964 DPRINTFN(DBG_FN, ("%s: %s: buf=%p, pktlen=%d\n", 1965 device_xname(sc->sc_dev), __func__, buf, pktlen)); 1966 1967 stat = (struct r92c_rx_stat *)buf; 1968 rxdw0 = le32toh(stat->rxdw0); 1969 rxdw3 = le32toh(stat->rxdw3); 1970 1971 if (__predict_false(rxdw0 & (R92C_RXDW0_CRCERR | R92C_RXDW0_ICVERR))) { 1972 /* 1973 * This should not happen since we setup our Rx filter 1974 * to not receive these frames. 1975 */ 1976 DPRINTFN(DBG_RX, ("%s: %s: CRC error\n", 1977 device_xname(sc->sc_dev), __func__)); 1978 ifp->if_ierrors++; 1979 return; 1980 } 1981 /* 1982 * XXX: This will drop most control packets. Do we really 1983 * want this in IEEE80211_M_MONITOR mode? 1984 */ 1985 // if (__predict_false(pktlen < (int)sizeof(*wh))) { 1986 if (__predict_false(pktlen < (int)sizeof(struct ieee80211_frame_ack))) { 1987 DPRINTFN(DBG_RX, ("%s: %s: packet too short %d\n", 1988 device_xname(sc->sc_dev), __func__, pktlen)); 1989 ic->ic_stats.is_rx_tooshort++; 1990 ifp->if_ierrors++; 1991 return; 1992 } 1993 if (__predict_false(pktlen > MCLBYTES)) { 1994 DPRINTFN(DBG_RX, ("%s: %s: packet too big %d\n", 1995 device_xname(sc->sc_dev), __func__, pktlen)); 1996 ifp->if_ierrors++; 1997 return; 1998 } 1999 2000 rate = MS(rxdw3, R92C_RXDW3_RATE); 2001 infosz = MS(rxdw0, R92C_RXDW0_INFOSZ) * 8; 2002 2003 /* Get RSSI from PHY status descriptor if present. */ 2004 if (infosz != 0 && (rxdw0 & R92C_RXDW0_PHYST)) { 2005 rssi = urtwn_get_rssi(sc, rate, &stat[1]); 2006 /* Update our average RSSI. */ 2007 urtwn_update_avgrssi(sc, rate, rssi); 2008 } 2009 2010 DPRINTFN(DBG_RX, ("%s: %s: Rx frame len=%d rate=%d infosz=%d rssi=%d\n", 2011 device_xname(sc->sc_dev), __func__, pktlen, rate, infosz, rssi)); 2012 2013 MGETHDR(m, M_DONTWAIT, MT_DATA); 2014 if (__predict_false(m == NULL)) { 2015 aprint_error_dev(sc->sc_dev, "couldn't allocate rx mbuf\n"); 2016 ic->ic_stats.is_rx_nobuf++; 2017 ifp->if_ierrors++; 2018 return; 2019 } 2020 if (pktlen > (int)MHLEN) { 2021 MCLGET(m, M_DONTWAIT); 2022 if (__predict_false(!(m->m_flags & M_EXT))) { 2023 aprint_error_dev(sc->sc_dev, 2024 "couldn't allocate rx mbuf cluster\n"); 2025 m_freem(m); 2026 ic->ic_stats.is_rx_nobuf++; 2027 ifp->if_ierrors++; 2028 return; 2029 } 2030 } 2031 2032 /* Finalize mbuf. */ 2033 m->m_pkthdr.rcvif = ifp; 2034 wh = (struct ieee80211_frame *)((uint8_t *)&stat[1] + infosz); 2035 memcpy(mtod(m, uint8_t *), wh, pktlen); 2036 m->m_pkthdr.len = m->m_len = pktlen; 2037 2038 s = splnet(); 2039 if (__predict_false(sc->sc_drvbpf != NULL)) { 2040 struct urtwn_rx_radiotap_header *tap = &sc->sc_rxtap; 2041 2042 tap->wr_flags = 0; 2043 if (!(rxdw3 & R92C_RXDW3_HT)) { 2044 switch (rate) { 2045 /* CCK. */ 2046 case 0: tap->wr_rate = 2; break; 2047 case 1: tap->wr_rate = 4; break; 2048 case 2: tap->wr_rate = 11; break; 2049 case 3: tap->wr_rate = 22; break; 2050 /* OFDM. */ 2051 case 4: tap->wr_rate = 12; break; 2052 case 5: tap->wr_rate = 18; break; 2053 case 6: tap->wr_rate = 24; break; 2054 case 7: tap->wr_rate = 36; break; 2055 case 8: tap->wr_rate = 48; break; 2056 case 9: tap->wr_rate = 72; break; 2057 case 10: tap->wr_rate = 96; break; 2058 case 11: tap->wr_rate = 108; break; 2059 } 2060 } else if (rate >= 12) { /* MCS0~15. */ 2061 /* Bit 7 set means HT MCS instead of rate. */ 2062 tap->wr_rate = 0x80 | (rate - 12); 2063 } 2064 tap->wr_dbm_antsignal = rssi; 2065 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 2066 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 2067 2068 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 2069 } 2070 2071 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 2072 2073 /* push the frame up to the 802.11 stack */ 2074 ieee80211_input(ic, m, ni, rssi, 0); 2075 2076 /* Node is no longer needed. */ 2077 ieee80211_free_node(ni); 2078 2079 splx(s); 2080 } 2081 2082 static void 2083 urtwn_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 2084 { 2085 struct urtwn_rx_data *data = priv; 2086 struct urtwn_softc *sc = data->sc; 2087 struct r92c_rx_stat *stat; 2088 uint32_t rxdw0; 2089 uint8_t *buf; 2090 int len, totlen, pktlen, infosz, npkts; 2091 2092 DPRINTFN(DBG_FN|DBG_RX, ("%s: %s: status=%d\n", 2093 device_xname(sc->sc_dev), __func__, status)); 2094 2095 if (__predict_false(status != USBD_NORMAL_COMPLETION)) { 2096 if (status == USBD_STALLED) 2097 usbd_clear_endpoint_stall_async(sc->rx_pipe); 2098 else if (status != USBD_CANCELLED) 2099 goto resubmit; 2100 return; 2101 } 2102 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); 2103 2104 if (__predict_false(len < (int)sizeof(*stat))) { 2105 DPRINTFN(DBG_RX, ("%s: %s: xfer too short %d\n", 2106 device_xname(sc->sc_dev), __func__, len)); 2107 goto resubmit; 2108 } 2109 buf = data->buf; 2110 2111 /* Get the number of encapsulated frames. */ 2112 stat = (struct r92c_rx_stat *)buf; 2113 npkts = MS(le32toh(stat->rxdw2), R92C_RXDW2_PKTCNT); 2114 DPRINTFN(DBG_RX, ("%s: %s: Rx %d frames in one chunk\n", 2115 device_xname(sc->sc_dev), __func__, npkts)); 2116 2117 /* Process all of them. */ 2118 while (npkts-- > 0) { 2119 if (__predict_false(len < (int)sizeof(*stat))) { 2120 DPRINTFN(DBG_RX, 2121 ("%s: %s: len(%d) is short than header\n", 2122 device_xname(sc->sc_dev), __func__, len)); 2123 break; 2124 } 2125 stat = (struct r92c_rx_stat *)buf; 2126 rxdw0 = le32toh(stat->rxdw0); 2127 2128 pktlen = MS(rxdw0, R92C_RXDW0_PKTLEN); 2129 if (__predict_false(pktlen == 0)) { 2130 DPRINTFN(DBG_RX, ("%s: %s: pktlen is 0 byte\n", 2131 device_xname(sc->sc_dev), __func__)); 2132 break; 2133 } 2134 2135 infosz = MS(rxdw0, R92C_RXDW0_INFOSZ) * 8; 2136 2137 /* Make sure everything fits in xfer. */ 2138 totlen = sizeof(*stat) + infosz + pktlen; 2139 if (__predict_false(totlen > len)) { 2140 DPRINTFN(DBG_RX, ("%s: %s: pktlen %d(%d+%d+%d) > %d\n", 2141 device_xname(sc->sc_dev), __func__, totlen, 2142 (int)sizeof(*stat), infosz, pktlen, len)); 2143 break; 2144 } 2145 2146 /* Process 802.11 frame. */ 2147 urtwn_rx_frame(sc, buf, pktlen); 2148 2149 /* Next chunk is 128-byte aligned. */ 2150 totlen = roundup2(totlen, 128); 2151 buf += totlen; 2152 len -= totlen; 2153 } 2154 2155 resubmit: 2156 /* Setup a new transfer. */ 2157 usbd_setup_xfer(xfer, sc->rx_pipe, data, data->buf, URTWN_RXBUFSZ, 2158 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, urtwn_rxeof); 2159 (void)usbd_transfer(xfer); 2160 } 2161 2162 static void 2163 urtwn_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 2164 { 2165 struct urtwn_tx_data *data = priv; 2166 struct urtwn_softc *sc = data->sc; 2167 struct ifnet *ifp = &sc->sc_if; 2168 usbd_pipe_handle pipe = data->pipe; 2169 int s; 2170 2171 DPRINTFN(DBG_FN|DBG_TX, ("%s: %s: status=%d\n", 2172 device_xname(sc->sc_dev), __func__, status)); 2173 2174 mutex_enter(&sc->sc_tx_mtx); 2175 /* Put this Tx buffer back to our free list. */ 2176 TAILQ_INSERT_TAIL(&sc->tx_free_list, data, next); 2177 mutex_exit(&sc->sc_tx_mtx); 2178 2179 s = splnet(); 2180 sc->tx_timer = 0; 2181 ifp->if_flags &= ~IFF_OACTIVE; 2182 2183 if (__predict_false(status != USBD_NORMAL_COMPLETION)) { 2184 if (status != USBD_NOT_STARTED && status != USBD_CANCELLED) { 2185 if (status == USBD_STALLED) 2186 usbd_clear_endpoint_stall_async(pipe); 2187 ifp->if_oerrors++; 2188 } 2189 splx(s); 2190 return; 2191 } 2192 2193 ifp->if_opackets++; 2194 urtwn_start(ifp); 2195 2196 splx(s); 2197 } 2198 2199 static int 2200 urtwn_tx(struct urtwn_softc *sc, struct mbuf *m, struct ieee80211_node *ni, 2201 struct urtwn_tx_data *data) 2202 { 2203 struct ieee80211com *ic = &sc->sc_ic; 2204 struct ieee80211_frame *wh; 2205 struct ieee80211_key *k = NULL; 2206 struct r92c_tx_desc *txd; 2207 usbd_pipe_handle pipe; 2208 size_t i, padsize, xferlen; 2209 uint16_t seq, sum; 2210 uint8_t raid, type, tid, qid; 2211 int s, hasqos, error; 2212 2213 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 2214 2215 wh = mtod(m, struct ieee80211_frame *); 2216 type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; 2217 2218 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 2219 k = ieee80211_crypto_encap(ic, ni, m); 2220 if (k == NULL) 2221 return ENOBUFS; 2222 2223 /* packet header may have moved, reset our local pointer */ 2224 wh = mtod(m, struct ieee80211_frame *); 2225 } 2226 2227 if (__predict_false(sc->sc_drvbpf != NULL)) { 2228 struct urtwn_tx_radiotap_header *tap = &sc->sc_txtap; 2229 2230 tap->wt_flags = 0; 2231 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 2232 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 2233 if (wh->i_fc[1] & IEEE80211_FC1_WEP) 2234 tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 2235 2236 /* XXX: set tap->wt_rate? */ 2237 2238 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m); 2239 } 2240 2241 if ((hasqos = ieee80211_has_qos(wh))) { 2242 /* data frames in 11n mode */ 2243 struct ieee80211_qosframe *qwh = (void *)wh; 2244 tid = qwh->i_qos[0] & IEEE80211_QOS_TID; 2245 qid = TID_TO_WME_AC(tid); 2246 } else if (type != IEEE80211_FC0_TYPE_DATA) { 2247 /* Use AC_VO for management frames. */ 2248 qid = WME_AC_VO; 2249 tid = 0; /* compiler happy */ 2250 } else { 2251 /* non-qos data frames */ 2252 tid = R92C_TXDW1_QSEL_BE; 2253 qid = WME_AC_BE; 2254 } 2255 2256 /* Get the USB pipe to use for this AC. */ 2257 pipe = sc->tx_pipe[sc->ac2idx[qid]]; 2258 2259 if (((sizeof(*txd) + m->m_pkthdr.len) % 64) == 0) /* XXX: 64 */ 2260 padsize = 8; 2261 else 2262 padsize = 0; 2263 2264 /* Fill Tx descriptor. */ 2265 txd = (struct r92c_tx_desc *)data->buf; 2266 memset(txd, 0, sizeof(*txd) + padsize); 2267 2268 txd->txdw0 |= htole32( 2269 SM(R92C_TXDW0_PKTLEN, m->m_pkthdr.len) | 2270 SM(R92C_TXDW0_OFFSET, sizeof(*txd)) | 2271 R92C_TXDW0_OWN | R92C_TXDW0_FSG | R92C_TXDW0_LSG); 2272 2273 if (IEEE80211_IS_MULTICAST(wh->i_addr1)) 2274 txd->txdw0 |= htole32(R92C_TXDW0_BMCAST); 2275 2276 /* fix pad field */ 2277 if (padsize > 0) { 2278 DPRINTFN(DBG_TX, ("%s: %s: padding: size=%zd\n", 2279 device_xname(sc->sc_dev), __func__, padsize)); 2280 txd->txdw1 |= htole32(SM(R92C_TXDW1_PKTOFF, (padsize / 8))); 2281 } 2282 2283 if (!IEEE80211_IS_MULTICAST(wh->i_addr1) && 2284 type == IEEE80211_FC0_TYPE_DATA) { 2285 if (ic->ic_curmode == IEEE80211_MODE_11B) 2286 raid = R92C_RAID_11B; 2287 else 2288 raid = R92C_RAID_11BG; 2289 DPRINTFN(DBG_TX, 2290 ("%s: %s: data packet: tid=%d, raid=%d\n", 2291 device_xname(sc->sc_dev), __func__, tid, raid)); 2292 2293 txd->txdw1 |= htole32( 2294 SM(R92C_TXDW1_MACID, URTWN_MACID_BSS) | 2295 SM(R92C_TXDW1_QSEL, tid) | 2296 SM(R92C_TXDW1_RAID, raid) | 2297 R92C_TXDW1_AGGBK); 2298 2299 if (hasqos) { 2300 txd->txdw4 |= htole32(R92C_TXDW4_QOS); 2301 } 2302 2303 if (ic->ic_flags & IEEE80211_F_USEPROT) { 2304 /* for 11g */ 2305 if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) { 2306 txd->txdw4 |= htole32(R92C_TXDW4_CTS2SELF | 2307 R92C_TXDW4_HWRTSEN); 2308 } else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) { 2309 txd->txdw4 |= htole32(R92C_TXDW4_RTSEN | 2310 R92C_TXDW4_HWRTSEN); 2311 } 2312 } 2313 /* Send RTS at OFDM24. */ 2314 txd->txdw4 |= htole32(SM(R92C_TXDW4_RTSRATE, 8)); 2315 txd->txdw5 |= htole32(0x0001ff00); 2316 /* Send data at OFDM54. */ 2317 txd->txdw5 |= htole32(SM(R92C_TXDW5_DATARATE, 11)); 2318 } else if (type == IEEE80211_FC0_TYPE_MGT) { 2319 DPRINTFN(DBG_TX, ("%s: %s: mgmt packet\n", 2320 device_xname(sc->sc_dev), __func__)); 2321 txd->txdw1 |= htole32( 2322 SM(R92C_TXDW1_MACID, URTWN_MACID_BSS) | 2323 SM(R92C_TXDW1_QSEL, R92C_TXDW1_QSEL_MGNT) | 2324 SM(R92C_TXDW1_RAID, R92C_RAID_11B)); 2325 2326 /* Force CCK1. */ 2327 txd->txdw4 |= htole32(R92C_TXDW4_DRVRATE); 2328 /* Use 1Mbps */ 2329 txd->txdw5 |= htole32(SM(R92C_TXDW5_DATARATE, 0)); 2330 } else { 2331 /* broadcast or multicast packets */ 2332 DPRINTFN(DBG_TX, ("%s: %s: bc or mc packet\n", 2333 device_xname(sc->sc_dev), __func__)); 2334 txd->txdw1 |= htole32( 2335 SM(R92C_TXDW1_MACID, URTWN_MACID_BC) | 2336 SM(R92C_TXDW1_RAID, R92C_RAID_11B)); 2337 2338 /* Force CCK1. */ 2339 txd->txdw4 |= htole32(R92C_TXDW4_DRVRATE); 2340 /* Use 1Mbps */ 2341 txd->txdw5 |= htole32(SM(R92C_TXDW5_DATARATE, 0)); 2342 } 2343 2344 /* Set sequence number */ 2345 seq = LE_READ_2(&wh->i_seq[0]) >> IEEE80211_SEQ_SEQ_SHIFT; 2346 txd->txdseq |= htole16(seq); 2347 2348 if (!hasqos) { 2349 /* Use HW sequence numbering for non-QoS frames. */ 2350 txd->txdw4 |= htole32(R92C_TXDW4_HWSEQ); 2351 txd->txdseq |= htole16(0x8000); /* WTF? */ 2352 } 2353 2354 /* Compute Tx descriptor checksum. */ 2355 sum = 0; 2356 for (i = 0; i < sizeof(*txd) / 2; i++) 2357 sum ^= ((uint16_t *)txd)[i]; 2358 txd->txdsum = sum; /* NB: already little endian. */ 2359 2360 xferlen = sizeof(*txd) + m->m_pkthdr.len + padsize; 2361 m_copydata(m, 0, m->m_pkthdr.len, (char *)&txd[1] + padsize); 2362 2363 s = splnet(); 2364 data->pipe = pipe; 2365 usbd_setup_xfer(data->xfer, pipe, data, data->buf, xferlen, 2366 USBD_FORCE_SHORT_XFER | USBD_NO_COPY, URTWN_TX_TIMEOUT, 2367 urtwn_txeof); 2368 error = usbd_transfer(data->xfer); 2369 if (__predict_false(error != USBD_NORMAL_COMPLETION && 2370 error != USBD_IN_PROGRESS)) { 2371 splx(s); 2372 DPRINTFN(DBG_TX, ("%s: %s: transfer failed %d\n", 2373 device_xname(sc->sc_dev), __func__, error)); 2374 return error; 2375 } 2376 splx(s); 2377 return 0; 2378 } 2379 2380 static void 2381 urtwn_start(struct ifnet *ifp) 2382 { 2383 struct urtwn_softc *sc = ifp->if_softc; 2384 struct ieee80211com *ic = &sc->sc_ic; 2385 struct urtwn_tx_data *data; 2386 struct ether_header *eh; 2387 struct ieee80211_node *ni; 2388 struct mbuf *m; 2389 2390 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 2391 2392 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 2393 return; 2394 2395 data = NULL; 2396 for (;;) { 2397 mutex_enter(&sc->sc_tx_mtx); 2398 if (data == NULL && !TAILQ_EMPTY(&sc->tx_free_list)) { 2399 data = TAILQ_FIRST(&sc->tx_free_list); 2400 TAILQ_REMOVE(&sc->tx_free_list, data, next); 2401 } 2402 mutex_exit(&sc->sc_tx_mtx); 2403 2404 if (data == NULL) { 2405 ifp->if_flags |= IFF_OACTIVE; 2406 DPRINTFN(DBG_TX, ("%s: empty tx_free_list\n", 2407 device_xname(sc->sc_dev))); 2408 return; 2409 } 2410 2411 /* Send pending management frames first. */ 2412 IF_DEQUEUE(&ic->ic_mgtq, m); 2413 if (m != NULL) { 2414 ni = (void *)m->m_pkthdr.rcvif; 2415 m->m_pkthdr.rcvif = NULL; 2416 goto sendit; 2417 } 2418 if (ic->ic_state != IEEE80211_S_RUN) 2419 break; 2420 2421 /* Encapsulate and send data frames. */ 2422 IFQ_DEQUEUE(&ifp->if_snd, m); 2423 if (m == NULL) 2424 break; 2425 2426 if (m->m_len < (int)sizeof(*eh) && 2427 (m = m_pullup(m, sizeof(*eh))) == NULL) { 2428 ifp->if_oerrors++; 2429 continue; 2430 } 2431 eh = mtod(m, struct ether_header *); 2432 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 2433 if (ni == NULL) { 2434 m_freem(m); 2435 ifp->if_oerrors++; 2436 continue; 2437 } 2438 2439 bpf_mtap(ifp, m); 2440 2441 if ((m = ieee80211_encap(ic, m, ni)) == NULL) { 2442 ieee80211_free_node(ni); 2443 ifp->if_oerrors++; 2444 continue; 2445 } 2446 sendit: 2447 bpf_mtap3(ic->ic_rawbpf, m); 2448 2449 if (urtwn_tx(sc, m, ni, data) != 0) { 2450 m_freem(m); 2451 ieee80211_free_node(ni); 2452 ifp->if_oerrors++; 2453 continue; 2454 } 2455 data = NULL; 2456 m_freem(m); 2457 ieee80211_free_node(ni); 2458 sc->tx_timer = 5; 2459 ifp->if_timer = 1; 2460 } 2461 2462 /* Return the Tx buffer to the free list */ 2463 mutex_enter(&sc->sc_tx_mtx); 2464 TAILQ_INSERT_TAIL(&sc->tx_free_list, data, next); 2465 mutex_exit(&sc->sc_tx_mtx); 2466 } 2467 2468 static void 2469 urtwn_watchdog(struct ifnet *ifp) 2470 { 2471 struct urtwn_softc *sc = ifp->if_softc; 2472 2473 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 2474 2475 ifp->if_timer = 0; 2476 2477 if (sc->tx_timer > 0) { 2478 if (--sc->tx_timer == 0) { 2479 aprint_error_dev(sc->sc_dev, "device timeout\n"); 2480 /* urtwn_init(ifp); XXX needs a process context! */ 2481 ifp->if_oerrors++; 2482 return; 2483 } 2484 ifp->if_timer = 1; 2485 } 2486 ieee80211_watchdog(&sc->sc_ic); 2487 } 2488 2489 static int 2490 urtwn_ioctl(struct ifnet *ifp, u_long cmd, void *data) 2491 { 2492 struct urtwn_softc *sc = ifp->if_softc; 2493 struct ieee80211com *ic = &sc->sc_ic; 2494 int s, error = 0; 2495 2496 DPRINTFN(DBG_FN, ("%s: %s: cmd=0x%08lx, data=%p\n", 2497 device_xname(sc->sc_dev), __func__, cmd, data)); 2498 2499 s = splnet(); 2500 2501 switch (cmd) { 2502 case SIOCSIFFLAGS: 2503 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 2504 break; 2505 switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { 2506 case IFF_UP | IFF_RUNNING: 2507 break; 2508 case IFF_UP: 2509 urtwn_init(ifp); 2510 break; 2511 case IFF_RUNNING: 2512 urtwn_stop(ifp, 1); 2513 break; 2514 case 0: 2515 break; 2516 } 2517 break; 2518 2519 case SIOCADDMULTI: 2520 case SIOCDELMULTI: 2521 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 2522 /* setup multicast filter, etc */ 2523 error = 0; 2524 } 2525 break; 2526 2527 default: 2528 error = ieee80211_ioctl(ic, cmd, data); 2529 break; 2530 } 2531 if (error == ENETRESET) { 2532 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 2533 (IFF_UP | IFF_RUNNING) && 2534 ic->ic_roaming != IEEE80211_ROAMING_MANUAL) { 2535 urtwn_init(ifp); 2536 } 2537 error = 0; 2538 } 2539 2540 splx(s); 2541 2542 return (error); 2543 } 2544 2545 static int 2546 urtwn_power_on(struct urtwn_softc *sc) 2547 { 2548 uint32_t reg; 2549 int ntries; 2550 2551 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 2552 2553 KASSERT(mutex_owned(&sc->sc_write_mtx)); 2554 2555 /* Wait for autoload done bit. */ 2556 for (ntries = 0; ntries < 1000; ntries++) { 2557 if (urtwn_read_1(sc, R92C_APS_FSMCO) & R92C_APS_FSMCO_PFM_ALDN) 2558 break; 2559 DELAY(5); 2560 } 2561 if (ntries == 1000) { 2562 aprint_error_dev(sc->sc_dev, 2563 "timeout waiting for chip autoload\n"); 2564 return (ETIMEDOUT); 2565 } 2566 2567 /* Unlock ISO/CLK/Power control register. */ 2568 urtwn_write_1(sc, R92C_RSV_CTRL, 0); 2569 /* Move SPS into PWM mode. */ 2570 urtwn_write_1(sc, R92C_SPS0_CTRL, 0x2b); 2571 DELAY(100); 2572 2573 reg = urtwn_read_1(sc, R92C_LDOV12D_CTRL); 2574 if (!(reg & R92C_LDOV12D_CTRL_LDV12_EN)) { 2575 urtwn_write_1(sc, R92C_LDOV12D_CTRL, 2576 reg | R92C_LDOV12D_CTRL_LDV12_EN); 2577 DELAY(100); 2578 urtwn_write_1(sc, R92C_SYS_ISO_CTRL, 2579 urtwn_read_1(sc, R92C_SYS_ISO_CTRL) & 2580 ~R92C_SYS_ISO_CTRL_MD2PP); 2581 } 2582 2583 /* Auto enable WLAN. */ 2584 urtwn_write_2(sc, R92C_APS_FSMCO, 2585 urtwn_read_2(sc, R92C_APS_FSMCO) | R92C_APS_FSMCO_APFM_ONMAC); 2586 for (ntries = 0; ntries < 1000; ntries++) { 2587 if (!(urtwn_read_2(sc, R92C_APS_FSMCO) & 2588 R92C_APS_FSMCO_APFM_ONMAC)) 2589 break; 2590 DELAY(5); 2591 } 2592 if (ntries == 1000) { 2593 aprint_error_dev(sc->sc_dev, 2594 "timeout waiting for MAC auto ON\n"); 2595 return (ETIMEDOUT); 2596 } 2597 2598 /* Enable radio, GPIO and LED functions. */ 2599 KASSERT((R92C_APS_FSMCO_AFSM_HSUS | R92C_APS_FSMCO_PDN_EN | 2600 R92C_APS_FSMCO_PFM_ALDN) == 0x0812); 2601 urtwn_write_2(sc, R92C_APS_FSMCO, 2602 R92C_APS_FSMCO_AFSM_HSUS | 2603 R92C_APS_FSMCO_PDN_EN | 2604 R92C_APS_FSMCO_PFM_ALDN); 2605 2606 /* Release RF digital isolation. */ 2607 urtwn_write_2(sc, R92C_SYS_ISO_CTRL, 2608 urtwn_read_2(sc, R92C_SYS_ISO_CTRL) & ~R92C_SYS_ISO_CTRL_DIOR); 2609 2610 /* Initialize MAC. */ 2611 urtwn_write_1(sc, R92C_APSD_CTRL, 2612 urtwn_read_1(sc, R92C_APSD_CTRL) & ~R92C_APSD_CTRL_OFF); 2613 for (ntries = 0; ntries < 200; ntries++) { 2614 if (!(urtwn_read_1(sc, R92C_APSD_CTRL) & 2615 R92C_APSD_CTRL_OFF_STATUS)) 2616 break; 2617 DELAY(5); 2618 } 2619 if (ntries == 200) { 2620 aprint_error_dev(sc->sc_dev, 2621 "timeout waiting for MAC initialization\n"); 2622 return (ETIMEDOUT); 2623 } 2624 2625 /* Enable MAC DMA/WMAC/SCHEDULE/SEC blocks. */ 2626 reg = urtwn_read_2(sc, R92C_CR); 2627 reg |= R92C_CR_HCI_TXDMA_EN | R92C_CR_HCI_RXDMA_EN | 2628 R92C_CR_TXDMA_EN | R92C_CR_RXDMA_EN | R92C_CR_PROTOCOL_EN | 2629 R92C_CR_SCHEDULE_EN | R92C_CR_MACTXEN | R92C_CR_MACRXEN | 2630 R92C_CR_ENSEC; 2631 urtwn_write_2(sc, R92C_CR, reg); 2632 2633 urtwn_write_1(sc, 0xfe10, 0x19); 2634 return (0); 2635 } 2636 2637 static int 2638 urtwn_llt_init(struct urtwn_softc *sc) 2639 { 2640 size_t i; 2641 int error; 2642 2643 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 2644 2645 KASSERT(mutex_owned(&sc->sc_write_mtx)); 2646 2647 /* Reserve pages [0; R92C_TX_PAGE_COUNT]. */ 2648 for (i = 0; i < R92C_TX_PAGE_COUNT; i++) { 2649 if ((error = urtwn_llt_write(sc, i, i + 1)) != 0) 2650 return (error); 2651 } 2652 /* NB: 0xff indicates end-of-list. */ 2653 if ((error = urtwn_llt_write(sc, i, 0xff)) != 0) 2654 return (error); 2655 /* 2656 * Use pages [R92C_TX_PAGE_COUNT + 1; R92C_TXPKTBUF_COUNT - 1] 2657 * as ring buffer. 2658 */ 2659 for (++i; i < R92C_TXPKTBUF_COUNT - 1; i++) { 2660 if ((error = urtwn_llt_write(sc, i, i + 1)) != 0) 2661 return (error); 2662 } 2663 /* Make the last page point to the beginning of the ring buffer. */ 2664 error = urtwn_llt_write(sc, i, R92C_TX_PAGE_COUNT + 1); 2665 return (error); 2666 } 2667 2668 static void 2669 urtwn_fw_reset(struct urtwn_softc *sc) 2670 { 2671 uint16_t reg; 2672 int ntries; 2673 2674 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 2675 2676 KASSERT(mutex_owned(&sc->sc_write_mtx)); 2677 2678 /* Tell 8051 to reset itself. */ 2679 urtwn_write_1(sc, R92C_HMETFR + 3, 0x20); 2680 2681 /* Wait until 8051 resets by itself. */ 2682 for (ntries = 0; ntries < 100; ntries++) { 2683 reg = urtwn_read_2(sc, R92C_SYS_FUNC_EN); 2684 if (!(reg & R92C_SYS_FUNC_EN_CPUEN)) 2685 return; 2686 DELAY(50); 2687 } 2688 /* Force 8051 reset. */ 2689 urtwn_write_2(sc, R92C_SYS_FUNC_EN, reg & ~R92C_SYS_FUNC_EN_CPUEN); 2690 } 2691 2692 static int 2693 urtwn_fw_loadpage(struct urtwn_softc *sc, int page, uint8_t *buf, int len) 2694 { 2695 uint32_t reg; 2696 int off, mlen, error = 0; 2697 2698 DPRINTFN(DBG_FN, ("%s: %s: page=%d, buf=%p, len=%d\n", 2699 device_xname(sc->sc_dev), __func__, page, buf, len)); 2700 2701 reg = urtwn_read_4(sc, R92C_MCUFWDL); 2702 reg = RW(reg, R92C_MCUFWDL_PAGE, page); 2703 urtwn_write_4(sc, R92C_MCUFWDL, reg); 2704 2705 off = R92C_FW_START_ADDR; 2706 while (len > 0) { 2707 if (len > 196) 2708 mlen = 196; 2709 else if (len > 4) 2710 mlen = 4; 2711 else 2712 mlen = 1; 2713 error = urtwn_write_region(sc, off, buf, mlen); 2714 if (error != 0) 2715 break; 2716 off += mlen; 2717 buf += mlen; 2718 len -= mlen; 2719 } 2720 return (error); 2721 } 2722 2723 static int 2724 urtwn_load_firmware(struct urtwn_softc *sc) 2725 { 2726 firmware_handle_t fwh; 2727 const struct r92c_fw_hdr *hdr; 2728 const char *name; 2729 u_char *fw, *ptr; 2730 size_t len; 2731 uint32_t reg; 2732 int mlen, ntries, page, error; 2733 2734 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 2735 2736 KASSERT(mutex_owned(&sc->sc_write_mtx)); 2737 2738 /* Read firmware image from the filesystem. */ 2739 if ((sc->chip & (URTWN_CHIP_UMC_A_CUT | URTWN_CHIP_92C)) == 2740 URTWN_CHIP_UMC_A_CUT) 2741 name = "rtl8192cfwU.bin"; 2742 else 2743 name = "rtl8192cfw.bin"; 2744 if ((error = firmware_open("if_urtwn", name, &fwh)) != 0) { 2745 aprint_error_dev(sc->sc_dev, 2746 "failed loadfirmware of file %s (error %d)\n", name, error); 2747 return (error); 2748 } 2749 len = firmware_get_size(fwh); 2750 fw = firmware_malloc(len); 2751 if (fw == NULL) { 2752 aprint_error_dev(sc->sc_dev, 2753 "failed to allocate firmware memory\n"); 2754 firmware_close(fwh); 2755 return (ENOMEM); 2756 } 2757 error = firmware_read(fwh, 0, fw, len); 2758 firmware_close(fwh); 2759 if (error != 0) { 2760 aprint_error_dev(sc->sc_dev, 2761 "failed to read firmware (error %d)\n", error); 2762 firmware_free(fw, 0); 2763 return (error); 2764 } 2765 2766 ptr = fw; 2767 hdr = (const struct r92c_fw_hdr *)ptr; 2768 /* Check if there is a valid FW header and skip it. */ 2769 if ((le16toh(hdr->signature) >> 4) == 0x88c || 2770 (le16toh(hdr->signature) >> 4) == 0x92c) { 2771 DPRINTFN(DBG_INIT, ("%s: %s: FW V%d.%d %02d-%02d %02d:%02d\n", 2772 device_xname(sc->sc_dev), __func__, 2773 le16toh(hdr->version), le16toh(hdr->subversion), 2774 hdr->month, hdr->date, hdr->hour, hdr->minute)); 2775 ptr += sizeof(*hdr); 2776 len -= sizeof(*hdr); 2777 } 2778 2779 if (urtwn_read_1(sc, R92C_MCUFWDL) & 0x80) { 2780 urtwn_fw_reset(sc); 2781 urtwn_write_1(sc, R92C_MCUFWDL, 0); 2782 } 2783 2784 /* download enabled */ 2785 urtwn_write_2(sc, R92C_SYS_FUNC_EN, 2786 urtwn_read_2(sc, R92C_SYS_FUNC_EN) | 2787 R92C_SYS_FUNC_EN_CPUEN); 2788 urtwn_write_1(sc, R92C_MCUFWDL, 2789 urtwn_read_1(sc, R92C_MCUFWDL) | R92C_MCUFWDL_EN); 2790 urtwn_write_1(sc, R92C_MCUFWDL + 2, 2791 urtwn_read_1(sc, R92C_MCUFWDL + 2) & ~0x08); 2792 2793 /* download firmware */ 2794 for (page = 0; len > 0; page++) { 2795 mlen = MIN(len, R92C_FW_PAGE_SIZE); 2796 error = urtwn_fw_loadpage(sc, page, ptr, mlen); 2797 if (error != 0) { 2798 aprint_error_dev(sc->sc_dev, 2799 "could not load firmware page %d\n", page); 2800 goto fail; 2801 } 2802 ptr += mlen; 2803 len -= mlen; 2804 } 2805 2806 /* download disable */ 2807 urtwn_write_1(sc, R92C_MCUFWDL, 2808 urtwn_read_1(sc, R92C_MCUFWDL) & ~R92C_MCUFWDL_EN); 2809 urtwn_write_1(sc, R92C_MCUFWDL + 1, 0); 2810 2811 /* Wait for checksum report. */ 2812 for (ntries = 0; ntries < 1000; ntries++) { 2813 if (urtwn_read_4(sc, R92C_MCUFWDL) & R92C_MCUFWDL_CHKSUM_RPT) 2814 break; 2815 DELAY(5); 2816 } 2817 if (ntries == 1000) { 2818 aprint_error_dev(sc->sc_dev, 2819 "timeout waiting for checksum report\n"); 2820 error = ETIMEDOUT; 2821 goto fail; 2822 } 2823 2824 /* Wait for firmware readiness. */ 2825 reg = urtwn_read_4(sc, R92C_MCUFWDL); 2826 reg = (reg & ~R92C_MCUFWDL_WINTINI_RDY) | R92C_MCUFWDL_RDY; 2827 urtwn_write_4(sc, R92C_MCUFWDL, reg); 2828 for (ntries = 0; ntries < 1000; ntries++) { 2829 if (urtwn_read_4(sc, R92C_MCUFWDL) & R92C_MCUFWDL_WINTINI_RDY) 2830 break; 2831 DELAY(5); 2832 } 2833 if (ntries == 1000) { 2834 aprint_error_dev(sc->sc_dev, 2835 "timeout waiting for firmware readiness\n"); 2836 error = ETIMEDOUT; 2837 goto fail; 2838 } 2839 fail: 2840 firmware_free(fw, 0); 2841 return (error); 2842 } 2843 2844 static int 2845 urtwn_dma_init(struct urtwn_softc *sc) 2846 { 2847 int hashq, hasnq, haslq, nqueues, nqpages, nrempages; 2848 uint32_t reg; 2849 int error; 2850 2851 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 2852 2853 KASSERT(mutex_owned(&sc->sc_write_mtx)); 2854 2855 /* Initialize LLT table. */ 2856 error = urtwn_llt_init(sc); 2857 if (error != 0) 2858 return (error); 2859 2860 /* Get Tx queues to USB endpoints mapping. */ 2861 hashq = hasnq = haslq = 0; 2862 reg = urtwn_read_2(sc, R92C_USB_EP + 1); 2863 DPRINTFN(DBG_INIT, ("%s: %s: USB endpoints mapping 0x%x\n", 2864 device_xname(sc->sc_dev), __func__, reg)); 2865 if (MS(reg, R92C_USB_EP_HQ) != 0) 2866 hashq = 1; 2867 if (MS(reg, R92C_USB_EP_NQ) != 0) 2868 hasnq = 1; 2869 if (MS(reg, R92C_USB_EP_LQ) != 0) 2870 haslq = 1; 2871 nqueues = hashq + hasnq + haslq; 2872 if (nqueues == 0) 2873 return (EIO); 2874 /* Get the number of pages for each queue. */ 2875 nqpages = (R92C_TX_PAGE_COUNT - R92C_PUBQ_NPAGES) / nqueues; 2876 /* The remaining pages are assigned to the high priority queue. */ 2877 nrempages = (R92C_TX_PAGE_COUNT - R92C_PUBQ_NPAGES) % nqueues; 2878 2879 /* Set number of pages for normal priority queue. */ 2880 urtwn_write_1(sc, R92C_RQPN_NPQ, hasnq ? nqpages : 0); 2881 urtwn_write_4(sc, R92C_RQPN, 2882 /* Set number of pages for public queue. */ 2883 SM(R92C_RQPN_PUBQ, R92C_PUBQ_NPAGES) | 2884 /* Set number of pages for high priority queue. */ 2885 SM(R92C_RQPN_HPQ, hashq ? nqpages + nrempages : 0) | 2886 /* Set number of pages for low priority queue. */ 2887 SM(R92C_RQPN_LPQ, haslq ? nqpages : 0) | 2888 /* Load values. */ 2889 R92C_RQPN_LD); 2890 2891 urtwn_write_1(sc, R92C_TXPKTBUF_BCNQ_BDNY, R92C_TX_PAGE_BOUNDARY); 2892 urtwn_write_1(sc, R92C_TXPKTBUF_MGQ_BDNY, R92C_TX_PAGE_BOUNDARY); 2893 urtwn_write_1(sc, R92C_TXPKTBUF_WMAC_LBK_BF_HD, R92C_TX_PAGE_BOUNDARY); 2894 urtwn_write_1(sc, R92C_TRXFF_BNDY, R92C_TX_PAGE_BOUNDARY); 2895 urtwn_write_1(sc, R92C_TDECTRL + 1, R92C_TX_PAGE_BOUNDARY); 2896 2897 /* Set queue to USB pipe mapping. */ 2898 reg = urtwn_read_2(sc, R92C_TRXDMA_CTRL); 2899 reg &= ~R92C_TRXDMA_CTRL_QMAP_M; 2900 if (nqueues == 1) { 2901 if (hashq) { 2902 reg |= R92C_TRXDMA_CTRL_QMAP_HQ; 2903 } else if (hasnq) { 2904 reg |= R92C_TRXDMA_CTRL_QMAP_NQ; 2905 } else { 2906 reg |= R92C_TRXDMA_CTRL_QMAP_LQ; 2907 } 2908 } else if (nqueues == 2) { 2909 /* All 2-endpoints configs have a high priority queue. */ 2910 if (!hashq) { 2911 return (EIO); 2912 } 2913 if (hasnq) { 2914 reg |= R92C_TRXDMA_CTRL_QMAP_HQ_NQ; 2915 } else { 2916 reg |= R92C_TRXDMA_CTRL_QMAP_HQ_LQ; 2917 } 2918 } else { 2919 reg |= R92C_TRXDMA_CTRL_QMAP_3EP; 2920 } 2921 urtwn_write_2(sc, R92C_TRXDMA_CTRL, reg); 2922 2923 /* Set Tx/Rx transfer page boundary. */ 2924 urtwn_write_2(sc, R92C_TRXFF_BNDY + 2, 0x27ff); 2925 2926 /* Set Tx/Rx transfer page size. */ 2927 urtwn_write_1(sc, R92C_PBP, 2928 SM(R92C_PBP_PSRX, R92C_PBP_128) | SM(R92C_PBP_PSTX, R92C_PBP_128)); 2929 return (0); 2930 } 2931 2932 static void 2933 urtwn_mac_init(struct urtwn_softc *sc) 2934 { 2935 size_t i; 2936 2937 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 2938 2939 KASSERT(mutex_owned(&sc->sc_write_mtx)); 2940 2941 /* Write MAC initialization values. */ 2942 for (i = 0; i < __arraycount(rtl8192cu_mac); i++) 2943 urtwn_write_1(sc, rtl8192cu_mac[i].reg, rtl8192cu_mac[i].val); 2944 } 2945 2946 static void 2947 urtwn_bb_init(struct urtwn_softc *sc) 2948 { 2949 const struct urtwn_bb_prog *prog; 2950 uint32_t reg; 2951 size_t i; 2952 2953 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 2954 2955 KASSERT(mutex_owned(&sc->sc_write_mtx)); 2956 2957 /* Enable BB and RF. */ 2958 urtwn_write_2(sc, R92C_SYS_FUNC_EN, 2959 urtwn_read_2(sc, R92C_SYS_FUNC_EN) | 2960 R92C_SYS_FUNC_EN_BBRSTB | R92C_SYS_FUNC_EN_BB_GLB_RST | 2961 R92C_SYS_FUNC_EN_DIO_RF); 2962 2963 urtwn_write_1(sc, R92C_AFE_PLL_CTRL, 0x83); 2964 urtwn_write_1(sc, R92C_AFE_PLL_CTRL + 1, 0xdb); 2965 2966 urtwn_write_1(sc, R92C_RF_CTRL, 2967 R92C_RF_CTRL_EN | R92C_RF_CTRL_RSTB | R92C_RF_CTRL_SDMRSTB); 2968 urtwn_write_1(sc, R92C_SYS_FUNC_EN, 2969 R92C_SYS_FUNC_EN_USBA | R92C_SYS_FUNC_EN_USBD | 2970 R92C_SYS_FUNC_EN_BB_GLB_RST | R92C_SYS_FUNC_EN_BBRSTB); 2971 2972 urtwn_write_1(sc, R92C_LDOHCI12_CTRL, 0x0f); 2973 urtwn_write_1(sc, 0x15, 0xe9); 2974 urtwn_write_1(sc, R92C_AFE_XTAL_CTRL + 1, 0x80); 2975 2976 /* Select BB programming based on board type. */ 2977 if (!(sc->chip & URTWN_CHIP_92C)) { 2978 if (sc->board_type == R92C_BOARD_TYPE_MINICARD) { 2979 prog = &rtl8188ce_bb_prog; 2980 } else if (sc->board_type == R92C_BOARD_TYPE_HIGHPA) { 2981 prog = &rtl8188ru_bb_prog; 2982 } else { 2983 prog = &rtl8188cu_bb_prog; 2984 } 2985 } else { 2986 if (sc->board_type == R92C_BOARD_TYPE_MINICARD) { 2987 prog = &rtl8192ce_bb_prog; 2988 } else { 2989 prog = &rtl8192cu_bb_prog; 2990 } 2991 } 2992 /* Write BB initialization values. */ 2993 for (i = 0; i < prog->count; i++) { 2994 /* additional delay depend on registers */ 2995 switch (prog->regs[i]) { 2996 case 0xfe: 2997 usbd_delay_ms(sc->sc_udev, 50); 2998 break; 2999 case 0xfd: 3000 usbd_delay_ms(sc->sc_udev, 5); 3001 break; 3002 case 0xfc: 3003 usbd_delay_ms(sc->sc_udev, 1); 3004 break; 3005 case 0xfb: 3006 DELAY(50); 3007 break; 3008 case 0xfa: 3009 DELAY(5); 3010 break; 3011 case 0xf9: 3012 DELAY(1); 3013 break; 3014 } 3015 urtwn_bb_write(sc, prog->regs[i], prog->vals[i]); 3016 DELAY(1); 3017 } 3018 3019 if (sc->chip & URTWN_CHIP_92C_1T2R) { 3020 /* 8192C 1T only configuration. */ 3021 reg = urtwn_bb_read(sc, R92C_FPGA0_TXINFO); 3022 reg = (reg & ~0x00000003) | 0x2; 3023 urtwn_bb_write(sc, R92C_FPGA0_TXINFO, reg); 3024 3025 reg = urtwn_bb_read(sc, R92C_FPGA1_TXINFO); 3026 reg = (reg & ~0x00300033) | 0x00200022; 3027 urtwn_bb_write(sc, R92C_FPGA1_TXINFO, reg); 3028 3029 reg = urtwn_bb_read(sc, R92C_CCK0_AFESETTING); 3030 reg = (reg & ~0xff000000) | (0x45 << 24); 3031 urtwn_bb_write(sc, R92C_CCK0_AFESETTING, reg); 3032 3033 reg = urtwn_bb_read(sc, R92C_OFDM0_TRXPATHENA); 3034 reg = (reg & ~0x000000ff) | 0x23; 3035 urtwn_bb_write(sc, R92C_OFDM0_TRXPATHENA, reg); 3036 3037 reg = urtwn_bb_read(sc, R92C_OFDM0_AGCPARAM1); 3038 reg = (reg & ~0x00000030) | (1 << 4); 3039 urtwn_bb_write(sc, R92C_OFDM0_AGCPARAM1, reg); 3040 3041 reg = urtwn_bb_read(sc, 0xe74); 3042 reg = (reg & ~0x0c000000) | (2 << 26); 3043 urtwn_bb_write(sc, 0xe74, reg); 3044 reg = urtwn_bb_read(sc, 0xe78); 3045 reg = (reg & ~0x0c000000) | (2 << 26); 3046 urtwn_bb_write(sc, 0xe78, reg); 3047 reg = urtwn_bb_read(sc, 0xe7c); 3048 reg = (reg & ~0x0c000000) | (2 << 26); 3049 urtwn_bb_write(sc, 0xe7c, reg); 3050 reg = urtwn_bb_read(sc, 0xe80); 3051 reg = (reg & ~0x0c000000) | (2 << 26); 3052 urtwn_bb_write(sc, 0xe80, reg); 3053 reg = urtwn_bb_read(sc, 0xe88); 3054 reg = (reg & ~0x0c000000) | (2 << 26); 3055 urtwn_bb_write(sc, 0xe88, reg); 3056 } 3057 3058 /* Write AGC values. */ 3059 for (i = 0; i < prog->agccount; i++) { 3060 urtwn_bb_write(sc, R92C_OFDM0_AGCRSSITABLE, prog->agcvals[i]); 3061 DELAY(1); 3062 } 3063 3064 if (urtwn_bb_read(sc, R92C_HSSI_PARAM2(0)) & 3065 R92C_HSSI_PARAM2_CCK_HIPWR) { 3066 SET(sc->sc_flags, URTWN_FLAG_CCK_HIPWR); 3067 } 3068 } 3069 3070 static void 3071 urtwn_rf_init(struct urtwn_softc *sc) 3072 { 3073 const struct urtwn_rf_prog *prog; 3074 uint32_t reg, mask, saved; 3075 size_t i, j, idx; 3076 3077 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3078 3079 /* Select RF programming based on board type. */ 3080 if (!(sc->chip & URTWN_CHIP_92C)) { 3081 if (sc->board_type == R92C_BOARD_TYPE_MINICARD) { 3082 prog = rtl8188ce_rf_prog; 3083 } else if (sc->board_type == R92C_BOARD_TYPE_HIGHPA) { 3084 prog = rtl8188ru_rf_prog; 3085 } else { 3086 prog = rtl8188cu_rf_prog; 3087 } 3088 } else { 3089 prog = rtl8192ce_rf_prog; 3090 } 3091 3092 for (i = 0; i < sc->nrxchains; i++) { 3093 /* Save RF_ENV control type. */ 3094 idx = i / 2; 3095 mask = 0xffffU << ((i % 2) * 16); 3096 saved = urtwn_bb_read(sc, R92C_FPGA0_RFIFACESW(idx)) & mask; 3097 3098 /* Set RF_ENV enable. */ 3099 reg = urtwn_bb_read(sc, R92C_FPGA0_RFIFACEOE(i)); 3100 reg |= 0x100000; 3101 urtwn_bb_write(sc, R92C_FPGA0_RFIFACEOE(i), reg); 3102 DELAY(1); 3103 3104 /* Set RF_ENV output high. */ 3105 reg = urtwn_bb_read(sc, R92C_FPGA0_RFIFACEOE(i)); 3106 reg |= 0x10; 3107 urtwn_bb_write(sc, R92C_FPGA0_RFIFACEOE(i), reg); 3108 DELAY(1); 3109 3110 /* Set address and data lengths of RF registers. */ 3111 reg = urtwn_bb_read(sc, R92C_HSSI_PARAM2(i)); 3112 reg &= ~R92C_HSSI_PARAM2_ADDR_LENGTH; 3113 urtwn_bb_write(sc, R92C_HSSI_PARAM2(i), reg); 3114 DELAY(1); 3115 reg = urtwn_bb_read(sc, R92C_HSSI_PARAM2(i)); 3116 reg &= ~R92C_HSSI_PARAM2_DATA_LENGTH; 3117 urtwn_bb_write(sc, R92C_HSSI_PARAM2(i), reg); 3118 DELAY(1); 3119 3120 /* Write RF initialization values for this chain. */ 3121 for (j = 0; j < prog[i].count; j++) { 3122 if (prog[i].regs[j] >= 0xf9 && 3123 prog[i].regs[j] <= 0xfe) { 3124 /* 3125 * These are fake RF registers offsets that 3126 * indicate a delay is required. 3127 */ 3128 usbd_delay_ms(sc->sc_udev, 50); 3129 continue; 3130 } 3131 urtwn_rf_write(sc, i, prog[i].regs[j], prog[i].vals[j]); 3132 DELAY(1); 3133 } 3134 3135 /* Restore RF_ENV control type. */ 3136 reg = urtwn_bb_read(sc, R92C_FPGA0_RFIFACESW(idx)) & ~mask; 3137 urtwn_bb_write(sc, R92C_FPGA0_RFIFACESW(idx), reg | saved); 3138 } 3139 3140 if ((sc->chip & (URTWN_CHIP_UMC_A_CUT | URTWN_CHIP_92C)) == 3141 URTWN_CHIP_UMC_A_CUT) { 3142 urtwn_rf_write(sc, 0, R92C_RF_RX_G1, 0x30255); 3143 urtwn_rf_write(sc, 0, R92C_RF_RX_G2, 0x50a00); 3144 } 3145 3146 /* Cache RF register CHNLBW. */ 3147 for (i = 0; i < 2; i++) { 3148 sc->rf_chnlbw[i] = urtwn_rf_read(sc, i, R92C_RF_CHNLBW); 3149 } 3150 } 3151 3152 static void 3153 urtwn_cam_init(struct urtwn_softc *sc) 3154 { 3155 uint32_t content, command; 3156 uint8_t idx; 3157 size_t i; 3158 3159 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3160 3161 KASSERT(mutex_owned(&sc->sc_write_mtx)); 3162 3163 for (idx = 0; idx < R92C_CAM_ENTRY_COUNT; idx++) { 3164 content = (idx & 3) 3165 | (R92C_CAM_ALGO_AES << R92C_CAM_ALGO_S) 3166 | R92C_CAM_VALID; 3167 3168 command = R92C_CAMCMD_POLLING 3169 | R92C_CAMCMD_WRITE 3170 | R92C_CAM_CTL0(idx); 3171 3172 urtwn_write_4(sc, R92C_CAMWRITE, content); 3173 urtwn_write_4(sc, R92C_CAMCMD, command); 3174 } 3175 3176 for (idx = 0; idx < R92C_CAM_ENTRY_COUNT; idx++) { 3177 for (i = 0; i < /* CAM_CONTENT_COUNT */ 8; i++) { 3178 if (i == 0) { 3179 content = (idx & 3) 3180 | (R92C_CAM_ALGO_AES << R92C_CAM_ALGO_S) 3181 | R92C_CAM_VALID; 3182 } else { 3183 content = 0; 3184 } 3185 3186 command = R92C_CAMCMD_POLLING 3187 | R92C_CAMCMD_WRITE 3188 | R92C_CAM_CTL0(idx) 3189 | i; 3190 3191 urtwn_write_4(sc, R92C_CAMWRITE, content); 3192 urtwn_write_4(sc, R92C_CAMCMD, command); 3193 } 3194 } 3195 3196 /* Invalidate all CAM entries. */ 3197 urtwn_write_4(sc, R92C_CAMCMD, R92C_CAMCMD_POLLING | R92C_CAMCMD_CLR); 3198 } 3199 3200 static void 3201 urtwn_pa_bias_init(struct urtwn_softc *sc) 3202 { 3203 uint8_t reg; 3204 size_t i; 3205 3206 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3207 3208 KASSERT(mutex_owned(&sc->sc_write_mtx)); 3209 3210 for (i = 0; i < sc->nrxchains; i++) { 3211 if (sc->pa_setting & (1U << i)) 3212 continue; 3213 3214 urtwn_rf_write(sc, i, R92C_RF_IPA, 0x0f406); 3215 urtwn_rf_write(sc, i, R92C_RF_IPA, 0x4f406); 3216 urtwn_rf_write(sc, i, R92C_RF_IPA, 0x8f406); 3217 urtwn_rf_write(sc, i, R92C_RF_IPA, 0xcf406); 3218 } 3219 if (!(sc->pa_setting & 0x10)) { 3220 reg = urtwn_read_1(sc, 0x16); 3221 reg = (reg & ~0xf0) | 0x90; 3222 urtwn_write_1(sc, 0x16, reg); 3223 } 3224 } 3225 3226 static void 3227 urtwn_rxfilter_init(struct urtwn_softc *sc) 3228 { 3229 3230 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3231 3232 KASSERT(mutex_owned(&sc->sc_write_mtx)); 3233 3234 /* Initialize Rx filter. */ 3235 /* TODO: use better filter for monitor mode. */ 3236 urtwn_write_4(sc, R92C_RCR, 3237 R92C_RCR_AAP | R92C_RCR_APM | R92C_RCR_AM | R92C_RCR_AB | 3238 R92C_RCR_APP_ICV | R92C_RCR_AMF | R92C_RCR_HTC_LOC_CTRL | 3239 R92C_RCR_APP_MIC | R92C_RCR_APP_PHYSTS); 3240 /* Accept all multicast frames. */ 3241 urtwn_write_4(sc, R92C_MAR + 0, 0xffffffff); 3242 urtwn_write_4(sc, R92C_MAR + 4, 0xffffffff); 3243 /* Accept all management frames. */ 3244 urtwn_write_2(sc, R92C_RXFLTMAP0, 0xffff); 3245 /* Reject all control frames. */ 3246 urtwn_write_2(sc, R92C_RXFLTMAP1, 0x0000); 3247 /* Accept all data frames. */ 3248 urtwn_write_2(sc, R92C_RXFLTMAP2, 0xffff); 3249 } 3250 3251 static void 3252 urtwn_edca_init(struct urtwn_softc *sc) 3253 { 3254 3255 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3256 3257 KASSERT(mutex_owned(&sc->sc_write_mtx)); 3258 3259 /* set spec SIFS (used in NAV) */ 3260 urtwn_write_2(sc, R92C_SPEC_SIFS, 0x100a); 3261 urtwn_write_2(sc, R92C_MAC_SPEC_SIFS, 0x100a); 3262 3263 /* set SIFS CCK/OFDM */ 3264 urtwn_write_2(sc, R92C_SIFS_CCK, 0x100a); 3265 urtwn_write_2(sc, R92C_SIFS_OFDM, 0x100a); 3266 3267 /* TXOP */ 3268 urtwn_write_4(sc, R92C_EDCA_BE_PARAM, 0x005ea42b); 3269 urtwn_write_4(sc, R92C_EDCA_BK_PARAM, 0x0000a44f); 3270 urtwn_write_4(sc, R92C_EDCA_VI_PARAM, 0x005ea324); 3271 urtwn_write_4(sc, R92C_EDCA_VO_PARAM, 0x002fa226); 3272 } 3273 3274 static void 3275 urtwn_write_txpower(struct urtwn_softc *sc, int chain, 3276 uint16_t power[URTWN_RIDX_COUNT]) 3277 { 3278 uint32_t reg; 3279 3280 DPRINTFN(DBG_FN, ("%s: %s: chain=%d\n", device_xname(sc->sc_dev), 3281 __func__, chain)); 3282 3283 /* Write per-CCK rate Tx power. */ 3284 if (chain == 0) { 3285 reg = urtwn_bb_read(sc, R92C_TXAGC_A_CCK1_MCS32); 3286 reg = RW(reg, R92C_TXAGC_A_CCK1, power[0]); 3287 urtwn_bb_write(sc, R92C_TXAGC_A_CCK1_MCS32, reg); 3288 3289 reg = urtwn_bb_read(sc, R92C_TXAGC_B_CCK11_A_CCK2_11); 3290 reg = RW(reg, R92C_TXAGC_A_CCK2, power[1]); 3291 reg = RW(reg, R92C_TXAGC_A_CCK55, power[2]); 3292 reg = RW(reg, R92C_TXAGC_A_CCK11, power[3]); 3293 urtwn_bb_write(sc, R92C_TXAGC_B_CCK11_A_CCK2_11, reg); 3294 } else { 3295 reg = urtwn_bb_read(sc, R92C_TXAGC_B_CCK1_55_MCS32); 3296 reg = RW(reg, R92C_TXAGC_B_CCK1, power[0]); 3297 reg = RW(reg, R92C_TXAGC_B_CCK2, power[1]); 3298 reg = RW(reg, R92C_TXAGC_B_CCK55, power[2]); 3299 urtwn_bb_write(sc, R92C_TXAGC_B_CCK1_55_MCS32, reg); 3300 3301 reg = urtwn_bb_read(sc, R92C_TXAGC_B_CCK11_A_CCK2_11); 3302 reg = RW(reg, R92C_TXAGC_B_CCK11, power[3]); 3303 urtwn_bb_write(sc, R92C_TXAGC_B_CCK11_A_CCK2_11, reg); 3304 } 3305 /* Write per-OFDM rate Tx power. */ 3306 urtwn_bb_write(sc, R92C_TXAGC_RATE18_06(chain), 3307 SM(R92C_TXAGC_RATE06, power[ 4]) | 3308 SM(R92C_TXAGC_RATE09, power[ 5]) | 3309 SM(R92C_TXAGC_RATE12, power[ 6]) | 3310 SM(R92C_TXAGC_RATE18, power[ 7])); 3311 urtwn_bb_write(sc, R92C_TXAGC_RATE54_24(chain), 3312 SM(R92C_TXAGC_RATE24, power[ 8]) | 3313 SM(R92C_TXAGC_RATE36, power[ 9]) | 3314 SM(R92C_TXAGC_RATE48, power[10]) | 3315 SM(R92C_TXAGC_RATE54, power[11])); 3316 /* Write per-MCS Tx power. */ 3317 urtwn_bb_write(sc, R92C_TXAGC_MCS03_MCS00(chain), 3318 SM(R92C_TXAGC_MCS00, power[12]) | 3319 SM(R92C_TXAGC_MCS01, power[13]) | 3320 SM(R92C_TXAGC_MCS02, power[14]) | 3321 SM(R92C_TXAGC_MCS03, power[15])); 3322 urtwn_bb_write(sc, R92C_TXAGC_MCS07_MCS04(chain), 3323 SM(R92C_TXAGC_MCS04, power[16]) | 3324 SM(R92C_TXAGC_MCS05, power[17]) | 3325 SM(R92C_TXAGC_MCS06, power[18]) | 3326 SM(R92C_TXAGC_MCS07, power[19])); 3327 urtwn_bb_write(sc, R92C_TXAGC_MCS11_MCS08(chain), 3328 SM(R92C_TXAGC_MCS08, power[20]) | 3329 SM(R92C_TXAGC_MCS09, power[21]) | 3330 SM(R92C_TXAGC_MCS10, power[22]) | 3331 SM(R92C_TXAGC_MCS11, power[23])); 3332 urtwn_bb_write(sc, R92C_TXAGC_MCS15_MCS12(chain), 3333 SM(R92C_TXAGC_MCS12, power[24]) | 3334 SM(R92C_TXAGC_MCS13, power[25]) | 3335 SM(R92C_TXAGC_MCS14, power[26]) | 3336 SM(R92C_TXAGC_MCS15, power[27])); 3337 } 3338 3339 static void 3340 urtwn_get_txpower(struct urtwn_softc *sc, size_t chain, u_int chan, u_int ht40m, 3341 uint16_t power[URTWN_RIDX_COUNT]) 3342 { 3343 struct r92c_rom *rom = &sc->rom; 3344 uint16_t cckpow, ofdmpow, htpow, diff, maxpow; 3345 const struct urtwn_txpwr *base; 3346 int ridx, group; 3347 3348 DPRINTFN(DBG_FN, ("%s: %s: chain=%zd, chan=%d\n", 3349 device_xname(sc->sc_dev), __func__, chain, chan)); 3350 3351 /* Determine channel group. */ 3352 if (chan <= 3) { 3353 group = 0; 3354 } else if (chan <= 9) { 3355 group = 1; 3356 } else { 3357 group = 2; 3358 } 3359 3360 /* Get original Tx power based on board type and RF chain. */ 3361 if (!(sc->chip & URTWN_CHIP_92C)) { 3362 if (sc->board_type == R92C_BOARD_TYPE_HIGHPA) { 3363 base = &rtl8188ru_txagc[chain]; 3364 } else { 3365 base = &rtl8192cu_txagc[chain]; 3366 } 3367 } else { 3368 base = &rtl8192cu_txagc[chain]; 3369 } 3370 3371 memset(power, 0, URTWN_RIDX_COUNT * sizeof(power[0])); 3372 if (sc->regulatory == 0) { 3373 for (ridx = 0; ridx <= 3; ridx++) { 3374 power[ridx] = base->pwr[0][ridx]; 3375 } 3376 } 3377 for (ridx = 4; ridx < URTWN_RIDX_COUNT; ridx++) { 3378 if (sc->regulatory == 3) { 3379 power[ridx] = base->pwr[0][ridx]; 3380 /* Apply vendor limits. */ 3381 if (ht40m != IEEE80211_HTINFO_2NDCHAN_NONE) { 3382 maxpow = rom->ht40_max_pwr[group]; 3383 } else { 3384 maxpow = rom->ht20_max_pwr[group]; 3385 } 3386 maxpow = (maxpow >> (chain * 4)) & 0xf; 3387 if (power[ridx] > maxpow) { 3388 power[ridx] = maxpow; 3389 } 3390 } else if (sc->regulatory == 1) { 3391 if (ht40m == IEEE80211_HTINFO_2NDCHAN_NONE) { 3392 power[ridx] = base->pwr[group][ridx]; 3393 } 3394 } else if (sc->regulatory != 2) { 3395 power[ridx] = base->pwr[0][ridx]; 3396 } 3397 } 3398 3399 /* Compute per-CCK rate Tx power. */ 3400 cckpow = rom->cck_tx_pwr[chain][group]; 3401 for (ridx = 0; ridx <= 3; ridx++) { 3402 power[ridx] += cckpow; 3403 if (power[ridx] > R92C_MAX_TX_PWR) { 3404 power[ridx] = R92C_MAX_TX_PWR; 3405 } 3406 } 3407 3408 htpow = rom->ht40_1s_tx_pwr[chain][group]; 3409 if (sc->ntxchains > 1) { 3410 /* Apply reduction for 2 spatial streams. */ 3411 diff = rom->ht40_2s_tx_pwr_diff[group]; 3412 diff = (diff >> (chain * 4)) & 0xf; 3413 htpow = (htpow > diff) ? htpow - diff : 0; 3414 } 3415 3416 /* Compute per-OFDM rate Tx power. */ 3417 diff = rom->ofdm_tx_pwr_diff[group]; 3418 diff = (diff >> (chain * 4)) & 0xf; 3419 ofdmpow = htpow + diff; /* HT->OFDM correction. */ 3420 for (ridx = 4; ridx <= 11; ridx++) { 3421 power[ridx] += ofdmpow; 3422 if (power[ridx] > R92C_MAX_TX_PWR) { 3423 power[ridx] = R92C_MAX_TX_PWR; 3424 } 3425 } 3426 3427 /* Compute per-MCS Tx power. */ 3428 if (ht40m == IEEE80211_HTINFO_2NDCHAN_NONE) { 3429 diff = rom->ht20_tx_pwr_diff[group]; 3430 diff = (diff >> (chain * 4)) & 0xf; 3431 htpow += diff; /* HT40->HT20 correction. */ 3432 } 3433 for (ridx = 12; ridx < URTWN_RIDX_COUNT; ridx++) { 3434 power[ridx] += htpow; 3435 if (power[ridx] > R92C_MAX_TX_PWR) { 3436 power[ridx] = R92C_MAX_TX_PWR; 3437 } 3438 } 3439 #ifdef URTWN_DEBUG 3440 if (urtwn_debug & DBG_RF) { 3441 /* Dump per-rate Tx power values. */ 3442 printf("%s: %s: Tx power for chain %zd:\n", 3443 device_xname(sc->sc_dev), __func__, chain); 3444 for (ridx = 0; ridx < URTWN_RIDX_COUNT; ridx++) { 3445 printf("%s: %s: Rate %d = %u\n", 3446 device_xname(sc->sc_dev), __func__, ridx, 3447 power[ridx]); 3448 } 3449 } 3450 #endif 3451 } 3452 3453 static void 3454 urtwn_set_txpower(struct urtwn_softc *sc, u_int chan, u_int ht40m) 3455 { 3456 uint16_t power[URTWN_RIDX_COUNT]; 3457 size_t i; 3458 3459 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3460 3461 for (i = 0; i < sc->ntxchains; i++) { 3462 /* Compute per-rate Tx power values. */ 3463 urtwn_get_txpower(sc, i, chan, ht40m, power); 3464 /* Write per-rate Tx power values to hardware. */ 3465 urtwn_write_txpower(sc, i, power); 3466 } 3467 } 3468 3469 static void 3470 urtwn_set_chan(struct urtwn_softc *sc, struct ieee80211_channel *c, u_int ht40m) 3471 { 3472 struct ieee80211com *ic = &sc->sc_ic; 3473 u_int chan; 3474 size_t i; 3475 3476 chan = ieee80211_chan2ieee(ic, c); /* XXX center freq! */ 3477 3478 DPRINTFN(DBG_FN, ("%s: %s: chan=%d\n", device_xname(sc->sc_dev), 3479 __func__, chan)); 3480 3481 KASSERT(mutex_owned(&sc->sc_write_mtx)); 3482 3483 if (ht40m == IEEE80211_HTINFO_2NDCHAN_ABOVE) { 3484 chan += 2; 3485 } else if (ht40m == IEEE80211_HTINFO_2NDCHAN_BELOW){ 3486 chan -= 2; 3487 } 3488 3489 /* Set Tx power for this new channel. */ 3490 urtwn_set_txpower(sc, chan, ht40m); 3491 3492 for (i = 0; i < sc->nrxchains; i++) { 3493 urtwn_rf_write(sc, i, R92C_RF_CHNLBW, 3494 RW(sc->rf_chnlbw[i], R92C_RF_CHNLBW_CHNL, chan)); 3495 } 3496 3497 if (ht40m) { 3498 /* Is secondary channel below or above primary? */ 3499 int prichlo = (ht40m == IEEE80211_HTINFO_2NDCHAN_ABOVE); 3500 uint32_t reg; 3501 3502 urtwn_write_1(sc, R92C_BWOPMODE, 3503 urtwn_read_1(sc, R92C_BWOPMODE) & ~R92C_BWOPMODE_20MHZ); 3504 3505 reg = urtwn_read_1(sc, R92C_RRSR + 2); 3506 reg = (reg & ~0x6f) | (prichlo ? 1 : 2) << 5; 3507 urtwn_write_1(sc, R92C_RRSR + 2, (uint8_t)reg); 3508 3509 urtwn_bb_write(sc, R92C_FPGA0_RFMOD, 3510 urtwn_bb_read(sc, R92C_FPGA0_RFMOD) | R92C_RFMOD_40MHZ); 3511 urtwn_bb_write(sc, R92C_FPGA1_RFMOD, 3512 urtwn_bb_read(sc, R92C_FPGA1_RFMOD) | R92C_RFMOD_40MHZ); 3513 3514 /* Set CCK side band. */ 3515 reg = urtwn_bb_read(sc, R92C_CCK0_SYSTEM); 3516 reg = (reg & ~0x00000010) | (prichlo ? 0 : 1) << 4; 3517 urtwn_bb_write(sc, R92C_CCK0_SYSTEM, reg); 3518 3519 reg = urtwn_bb_read(sc, R92C_OFDM1_LSTF); 3520 reg = (reg & ~0x00000c00) | (prichlo ? 1 : 2) << 10; 3521 urtwn_bb_write(sc, R92C_OFDM1_LSTF, reg); 3522 3523 urtwn_bb_write(sc, R92C_FPGA0_ANAPARAM2, 3524 urtwn_bb_read(sc, R92C_FPGA0_ANAPARAM2) & 3525 ~R92C_FPGA0_ANAPARAM2_CBW20); 3526 3527 reg = urtwn_bb_read(sc, 0x818); 3528 reg = (reg & ~0x0c000000) | (prichlo ? 2 : 1) << 26; 3529 urtwn_bb_write(sc, 0x818, reg); 3530 3531 /* Select 40MHz bandwidth. */ 3532 urtwn_rf_write(sc, 0, R92C_RF_CHNLBW, 3533 (sc->rf_chnlbw[0] & ~0xfff) | chan); 3534 } else { 3535 urtwn_write_1(sc, R92C_BWOPMODE, 3536 urtwn_read_1(sc, R92C_BWOPMODE) | R92C_BWOPMODE_20MHZ); 3537 3538 urtwn_bb_write(sc, R92C_FPGA0_RFMOD, 3539 urtwn_bb_read(sc, R92C_FPGA0_RFMOD) & ~R92C_RFMOD_40MHZ); 3540 urtwn_bb_write(sc, R92C_FPGA1_RFMOD, 3541 urtwn_bb_read(sc, R92C_FPGA1_RFMOD) & ~R92C_RFMOD_40MHZ); 3542 3543 urtwn_bb_write(sc, R92C_FPGA0_ANAPARAM2, 3544 urtwn_bb_read(sc, R92C_FPGA0_ANAPARAM2) | 3545 R92C_FPGA0_ANAPARAM2_CBW20); 3546 3547 /* Select 20MHz bandwidth. */ 3548 urtwn_rf_write(sc, 0, R92C_RF_CHNLBW, 3549 (sc->rf_chnlbw[0] & ~0xfff) | R92C_RF_CHNLBW_BW20 | chan); 3550 } 3551 } 3552 3553 static void 3554 urtwn_iq_calib(struct urtwn_softc *sc, bool inited) 3555 { 3556 3557 DPRINTFN(DBG_FN, ("%s: %s: inited=%d\n", device_xname(sc->sc_dev), 3558 __func__, inited)); 3559 3560 /* TODO */ 3561 } 3562 3563 static void 3564 urtwn_lc_calib(struct urtwn_softc *sc) 3565 { 3566 uint32_t rf_ac[2]; 3567 uint8_t txmode; 3568 size_t i; 3569 3570 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3571 3572 KASSERT(mutex_owned(&sc->sc_write_mtx)); 3573 3574 txmode = urtwn_read_1(sc, R92C_OFDM1_LSTF + 3); 3575 if ((txmode & 0x70) != 0) { 3576 /* Disable all continuous Tx. */ 3577 urtwn_write_1(sc, R92C_OFDM1_LSTF + 3, txmode & ~0x70); 3578 3579 /* Set RF mode to standby mode. */ 3580 for (i = 0; i < sc->nrxchains; i++) { 3581 rf_ac[i] = urtwn_rf_read(sc, i, R92C_RF_AC); 3582 urtwn_rf_write(sc, i, R92C_RF_AC, 3583 RW(rf_ac[i], R92C_RF_AC_MODE, 3584 R92C_RF_AC_MODE_STANDBY)); 3585 } 3586 } else { 3587 /* Block all Tx queues. */ 3588 urtwn_write_1(sc, R92C_TXPAUSE, 0xff); 3589 } 3590 /* Start calibration. */ 3591 urtwn_rf_write(sc, 0, R92C_RF_CHNLBW, 3592 urtwn_rf_read(sc, 0, R92C_RF_CHNLBW) | R92C_RF_CHNLBW_LCSTART); 3593 3594 /* Give calibration the time to complete. */ 3595 usbd_delay_ms(sc->sc_udev, 100); 3596 3597 /* Restore configuration. */ 3598 if ((txmode & 0x70) != 0) { 3599 /* Restore Tx mode. */ 3600 urtwn_write_1(sc, R92C_OFDM1_LSTF + 3, txmode); 3601 /* Restore RF mode. */ 3602 for (i = 0; i < sc->nrxchains; i++) { 3603 urtwn_rf_write(sc, i, R92C_RF_AC, rf_ac[i]); 3604 } 3605 } else { 3606 /* Unblock all Tx queues. */ 3607 urtwn_write_1(sc, R92C_TXPAUSE, 0x00); 3608 } 3609 } 3610 3611 static void 3612 urtwn_temp_calib(struct urtwn_softc *sc) 3613 { 3614 int temp; 3615 3616 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3617 3618 KASSERT(mutex_owned(&sc->sc_write_mtx)); 3619 3620 if (sc->thcal_state == 0) { 3621 /* Start measuring temperature. */ 3622 DPRINTFN(DBG_RF, ("%s: %s: start measuring temperature\n", 3623 device_xname(sc->sc_dev), __func__)); 3624 urtwn_rf_write(sc, 0, R92C_RF_T_METER, 0x60); 3625 sc->thcal_state = 1; 3626 return; 3627 } 3628 sc->thcal_state = 0; 3629 3630 /* Read measured temperature. */ 3631 temp = urtwn_rf_read(sc, 0, R92C_RF_T_METER) & 0x1f; 3632 DPRINTFN(DBG_RF, ("%s: %s: temperature=%d\n", device_xname(sc->sc_dev), 3633 __func__, temp)); 3634 if (temp == 0) /* Read failed, skip. */ 3635 return; 3636 3637 /* 3638 * Redo LC calibration if temperature changed significantly since 3639 * last calibration. 3640 */ 3641 if (sc->thcal_lctemp == 0) { 3642 /* First LC calibration is performed in urtwn_init(). */ 3643 sc->thcal_lctemp = temp; 3644 } else if (abs(temp - sc->thcal_lctemp) > 1) { 3645 DPRINTFN(DBG_RF, 3646 ("%s: %s: LC calib triggered by temp: %d -> %d\n", 3647 device_xname(sc->sc_dev), __func__, sc->thcal_lctemp, 3648 temp)); 3649 urtwn_lc_calib(sc); 3650 /* Record temperature of last LC calibration. */ 3651 sc->thcal_lctemp = temp; 3652 } 3653 } 3654 3655 static int 3656 urtwn_init(struct ifnet *ifp) 3657 { 3658 struct urtwn_softc *sc = ifp->if_softc; 3659 struct ieee80211com *ic = &sc->sc_ic; 3660 struct urtwn_rx_data *data; 3661 uint32_t reg; 3662 size_t i; 3663 int error; 3664 3665 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3666 3667 urtwn_stop(ifp, 0); 3668 3669 mutex_enter(&sc->sc_write_mtx); 3670 3671 mutex_enter(&sc->sc_task_mtx); 3672 /* Init host async commands ring. */ 3673 sc->cmdq.cur = sc->cmdq.next = sc->cmdq.queued = 0; 3674 mutex_exit(&sc->sc_task_mtx); 3675 3676 mutex_enter(&sc->sc_fwcmd_mtx); 3677 /* Init firmware commands ring. */ 3678 sc->fwcur = 0; 3679 mutex_exit(&sc->sc_fwcmd_mtx); 3680 3681 /* Allocate Tx/Rx buffers. */ 3682 error = urtwn_alloc_rx_list(sc); 3683 if (error != 0) { 3684 aprint_error_dev(sc->sc_dev, 3685 "could not allocate Rx buffers\n"); 3686 goto fail; 3687 } 3688 error = urtwn_alloc_tx_list(sc); 3689 if (error != 0) { 3690 aprint_error_dev(sc->sc_dev, 3691 "could not allocate Tx buffers\n"); 3692 goto fail; 3693 } 3694 3695 /* Power on adapter. */ 3696 error = urtwn_power_on(sc); 3697 if (error != 0) 3698 goto fail; 3699 3700 /* Initialize DMA. */ 3701 error = urtwn_dma_init(sc); 3702 if (error != 0) 3703 goto fail; 3704 3705 /* Set info size in Rx descriptors (in 64-bit words). */ 3706 urtwn_write_1(sc, R92C_RX_DRVINFO_SZ, 4); 3707 3708 /* Init interrupts. */ 3709 urtwn_write_4(sc, R92C_HISR, 0xffffffff); 3710 urtwn_write_4(sc, R92C_HIMR, 0xffffffff); 3711 3712 /* Set MAC address. */ 3713 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 3714 urtwn_write_region(sc, R92C_MACID, ic->ic_myaddr, IEEE80211_ADDR_LEN); 3715 3716 /* Set initial network type. */ 3717 reg = urtwn_read_4(sc, R92C_CR); 3718 switch (ic->ic_opmode) { 3719 case IEEE80211_M_STA: 3720 default: 3721 reg = RW(reg, R92C_CR_NETTYPE, R92C_CR_NETTYPE_INFRA); 3722 break; 3723 3724 case IEEE80211_M_IBSS: 3725 reg = RW(reg, R92C_CR_NETTYPE, R92C_CR_NETTYPE_ADHOC); 3726 break; 3727 } 3728 urtwn_write_4(sc, R92C_CR, reg); 3729 3730 /* Set response rate */ 3731 reg = urtwn_read_4(sc, R92C_RRSR); 3732 reg = RW(reg, R92C_RRSR_RATE_BITMAP, R92C_RRSR_RATE_CCK_ONLY_1M); 3733 urtwn_write_4(sc, R92C_RRSR, reg); 3734 3735 /* SIFS (used in NAV) */ 3736 urtwn_write_2(sc, R92C_SPEC_SIFS, 3737 SM(R92C_SPEC_SIFS_CCK, 0x10) | SM(R92C_SPEC_SIFS_OFDM, 0x10)); 3738 3739 /* Set short/long retry limits. */ 3740 urtwn_write_2(sc, R92C_RL, 3741 SM(R92C_RL_SRL, 0x30) | SM(R92C_RL_LRL, 0x30)); 3742 3743 /* Initialize EDCA parameters. */ 3744 urtwn_edca_init(sc); 3745 3746 /* Setup rate fallback. */ 3747 urtwn_write_4(sc, R92C_DARFRC + 0, 0x00000000); 3748 urtwn_write_4(sc, R92C_DARFRC + 4, 0x10080404); 3749 urtwn_write_4(sc, R92C_RARFRC + 0, 0x04030201); 3750 urtwn_write_4(sc, R92C_RARFRC + 4, 0x08070605); 3751 3752 urtwn_write_1(sc, R92C_FWHW_TXQ_CTRL, 3753 urtwn_read_1(sc, R92C_FWHW_TXQ_CTRL) | 3754 R92C_FWHW_TXQ_CTRL_AMPDU_RTY_NEW); 3755 /* Set ACK timeout. */ 3756 urtwn_write_1(sc, R92C_ACKTO, 0x40); 3757 3758 /* Setup USB aggregation. */ 3759 /* Tx */ 3760 reg = urtwn_read_4(sc, R92C_TDECTRL); 3761 reg = RW(reg, R92C_TDECTRL_BLK_DESC_NUM, 6); 3762 urtwn_write_4(sc, R92C_TDECTRL, reg); 3763 /* Rx */ 3764 urtwn_write_1(sc, R92C_TRXDMA_CTRL, 3765 urtwn_read_1(sc, R92C_TRXDMA_CTRL) | 3766 R92C_TRXDMA_CTRL_RXDMA_AGG_EN); 3767 urtwn_write_1(sc, R92C_USB_SPECIAL_OPTION, 3768 urtwn_read_1(sc, R92C_USB_SPECIAL_OPTION) & 3769 ~R92C_USB_SPECIAL_OPTION_AGG_EN); 3770 urtwn_write_1(sc, R92C_RXDMA_AGG_PG_TH, 48); 3771 urtwn_write_1(sc, R92C_USB_DMA_AGG_TO, 4); 3772 3773 /* Initialize beacon parameters. */ 3774 urtwn_write_2(sc, R92C_TBTT_PROHIBIT, 0x6404); 3775 urtwn_write_1(sc, R92C_DRVERLYINT, R92C_DRIVER_EARLY_INT_TIME); 3776 urtwn_write_1(sc, R92C_BCNDMATIM, R92C_DMA_ATIME_INT_TIME); 3777 urtwn_write_2(sc, R92C_BCNTCFG, 0x660f); 3778 3779 /* Setup AMPDU aggregation. */ 3780 urtwn_write_4(sc, R92C_AGGLEN_LMT, 0x99997631); /* MCS7~0 */ 3781 urtwn_write_1(sc, R92C_AGGR_BREAK_TIME, 0x16); 3782 urtwn_write_2(sc, 0x4ca, 0x0708); 3783 3784 urtwn_write_1(sc, R92C_BCN_MAX_ERR, 0xff); 3785 urtwn_write_1(sc, R92C_BCN_CTRL, R92C_BCN_CTRL_DIS_TSF_UDT0); 3786 3787 /* Load 8051 microcode. */ 3788 error = urtwn_load_firmware(sc); 3789 if (error != 0) 3790 goto fail; 3791 SET(sc->sc_flags, URTWN_FLAG_FWREADY); 3792 3793 /* Initialize MAC/BB/RF blocks. */ 3794 /* 3795 * XXX: urtwn_mac_init() sets R92C_RCR[0:15] = R92C_RCR_APM | 3796 * R92C_RCR_AM | R92C_RCR_AB | R92C_RCR_AICV | R92C_RCR_AMF. 3797 * XXX: This setting should be removed from rtl8192cu_mac[]. 3798 */ 3799 urtwn_mac_init(sc); // sets R92C_RCR[0:15] 3800 urtwn_rxfilter_init(sc); // reset R92C_RCR 3801 urtwn_bb_init(sc); 3802 urtwn_rf_init(sc); 3803 3804 /* Turn CCK and OFDM blocks on. */ 3805 reg = urtwn_bb_read(sc, R92C_FPGA0_RFMOD); 3806 reg |= R92C_RFMOD_CCK_EN; 3807 urtwn_bb_write(sc, R92C_FPGA0_RFMOD, reg); 3808 reg = urtwn_bb_read(sc, R92C_FPGA0_RFMOD); 3809 reg |= R92C_RFMOD_OFDM_EN; 3810 urtwn_bb_write(sc, R92C_FPGA0_RFMOD, reg); 3811 3812 /* Clear per-station keys table. */ 3813 urtwn_cam_init(sc); 3814 3815 /* Enable hardware sequence numbering. */ 3816 urtwn_write_1(sc, R92C_HWSEQ_CTRL, 0xff); 3817 3818 /* Perform LO and IQ calibrations. */ 3819 urtwn_iq_calib(sc, sc->iqk_inited); 3820 sc->iqk_inited = true; 3821 3822 /* Perform LC calibration. */ 3823 urtwn_lc_calib(sc); 3824 3825 /* Fix USB interference issue. */ 3826 urtwn_write_1(sc, 0xfe40, 0xe0); 3827 urtwn_write_1(sc, 0xfe41, 0x8d); 3828 urtwn_write_1(sc, 0xfe42, 0x80); 3829 urtwn_write_4(sc, 0x20c, 0xfd0320); 3830 3831 urtwn_pa_bias_init(sc); 3832 3833 if (!(sc->chip & (URTWN_CHIP_92C | URTWN_CHIP_92C_1T2R))) { 3834 /* 1T1R */ 3835 urtwn_bb_write(sc, R92C_FPGA0_RFPARAM(0), 3836 urtwn_bb_read(sc, R92C_FPGA0_RFPARAM(0)) | __BIT(13)); 3837 } 3838 3839 /* Initialize GPIO setting. */ 3840 urtwn_write_1(sc, R92C_GPIO_MUXCFG, 3841 urtwn_read_1(sc, R92C_GPIO_MUXCFG) & ~R92C_GPIO_MUXCFG_ENBT); 3842 3843 /* Fix for lower temperature. */ 3844 urtwn_write_1(sc, 0x15, 0xe9); 3845 3846 /* Set default channel. */ 3847 urtwn_set_chan(sc, ic->ic_curchan, IEEE80211_HTINFO_2NDCHAN_NONE); 3848 3849 /* Queue Rx xfers. */ 3850 for (i = 0; i < URTWN_RX_LIST_COUNT; i++) { 3851 data = &sc->rx_data[i]; 3852 usbd_setup_xfer(data->xfer, sc->rx_pipe, data, data->buf, 3853 URTWN_RXBUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 3854 USBD_NO_TIMEOUT, urtwn_rxeof); 3855 error = usbd_transfer(data->xfer); 3856 if (__predict_false(error != USBD_NORMAL_COMPLETION && 3857 error != USBD_IN_PROGRESS)) 3858 goto fail; 3859 } 3860 3861 /* We're ready to go. */ 3862 ifp->if_flags &= ~IFF_OACTIVE; 3863 ifp->if_flags |= IFF_RUNNING; 3864 3865 mutex_exit(&sc->sc_write_mtx); 3866 3867 if (ic->ic_opmode == IEEE80211_M_MONITOR) 3868 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 3869 else if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 3870 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 3871 urtwn_wait_async(sc); 3872 3873 return (0); 3874 3875 fail: 3876 mutex_exit(&sc->sc_write_mtx); 3877 3878 urtwn_stop(ifp, 1); 3879 return (error); 3880 } 3881 3882 static void 3883 urtwn_stop(struct ifnet *ifp, int disable) 3884 { 3885 struct urtwn_softc *sc = ifp->if_softc; 3886 struct ieee80211com *ic = &sc->sc_ic; 3887 size_t i; 3888 int s; 3889 3890 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3891 3892 s = splusb(); 3893 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 3894 urtwn_wait_async(sc); 3895 splx(s); 3896 3897 sc->tx_timer = 0; 3898 ifp->if_timer = 0; 3899 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 3900 3901 callout_stop(&sc->sc_scan_to); 3902 callout_stop(&sc->sc_calib_to); 3903 3904 /* Abort Tx. */ 3905 for (i = 0; i < R92C_MAX_EPOUT; i++) { 3906 if (sc->tx_pipe[i] != NULL) 3907 usbd_abort_pipe(sc->tx_pipe[i]); 3908 } 3909 3910 /* Stop Rx pipe. */ 3911 usbd_abort_pipe(sc->rx_pipe); 3912 3913 /* Free Tx/Rx buffers. */ 3914 urtwn_free_tx_list(sc); 3915 urtwn_free_rx_list(sc); 3916 3917 if (disable) 3918 urtwn_chip_stop(sc); 3919 } 3920 3921 static int 3922 urtwn_reset(struct ifnet *ifp) 3923 { 3924 struct urtwn_softc *sc = ifp->if_softc; 3925 struct ieee80211com *ic = &sc->sc_ic; 3926 3927 if (ic->ic_opmode != IEEE80211_M_MONITOR) 3928 return ENETRESET; 3929 3930 urtwn_set_chan(sc, ic->ic_curchan, IEEE80211_HTINFO_2NDCHAN_NONE); 3931 3932 return 0; 3933 } 3934 3935 static void 3936 urtwn_chip_stop(struct urtwn_softc *sc) 3937 { 3938 uint32_t reg; 3939 bool disabled = true; 3940 3941 DPRINTFN(DBG_FN, ("%s: %s\n", device_xname(sc->sc_dev), __func__)); 3942 3943 mutex_enter(&sc->sc_write_mtx); 3944 3945 /* 3946 * RF Off Sequence 3947 */ 3948 /* Pause MAC TX queue */ 3949 urtwn_write_1(sc, R92C_TXPAUSE, 0xFF); 3950 3951 /* Disable RF */ 3952 urtwn_rf_write(sc, 0, 0, 0); 3953 3954 urtwn_write_1(sc, R92C_APSD_CTRL, R92C_APSD_CTRL_OFF); 3955 3956 /* Reset BB state machine */ 3957 urtwn_write_1(sc, R92C_SYS_FUNC_EN, 3958 R92C_SYS_FUNC_EN_USBD | 3959 R92C_SYS_FUNC_EN_USBA | 3960 R92C_SYS_FUNC_EN_BB_GLB_RST); 3961 urtwn_write_1(sc, R92C_SYS_FUNC_EN, 3962 R92C_SYS_FUNC_EN_USBD | R92C_SYS_FUNC_EN_USBA); 3963 3964 /* 3965 * Reset digital sequence 3966 */ 3967 if (urtwn_read_1(sc, R92C_MCUFWDL) & R92C_MCUFWDL_RDY) { 3968 /* Reset MCU ready status */ 3969 urtwn_write_1(sc, R92C_MCUFWDL, 0); 3970 /* If firmware in ram code, do reset */ 3971 if (ISSET(sc->sc_flags, URTWN_FLAG_FWREADY)) { 3972 urtwn_fw_reset(sc); 3973 CLR(sc->sc_flags, URTWN_FLAG_FWREADY); 3974 } 3975 } 3976 3977 /* Reset MAC and Enable 8051 */ 3978 urtwn_write_1(sc, R92C_SYS_FUNC_EN + 1, 0x54); 3979 3980 /* Reset MCU ready status */ 3981 urtwn_write_1(sc, R92C_MCUFWDL, 0); 3982 3983 if (disabled) { 3984 /* Disable MAC clock */ 3985 urtwn_write_2(sc, R92C_SYS_CLKR, 0x70A3); 3986 /* Disable AFE PLL */ 3987 urtwn_write_1(sc, R92C_AFE_PLL_CTRL, 0x80); 3988 /* Gated AFE DIG_CLOCK */ 3989 urtwn_write_2(sc, R92C_AFE_XTAL_CTRL, 0x880F); 3990 /* Isolated digital to PON */ 3991 urtwn_write_1(sc, R92C_SYS_ISO_CTRL, 0xF9); 3992 } 3993 3994 /* 3995 * Pull GPIO PIN to balance level and LED control 3996 */ 3997 /* 1. Disable GPIO[7:0] */ 3998 urtwn_write_2(sc, R92C_GPIO_PIN_CTRL + 2, 0x0000); 3999 4000 reg = urtwn_read_4(sc, R92C_GPIO_PIN_CTRL) & ~0x0000ff00; 4001 reg |= ((reg << 8) & 0x0000ff00) | 0x00ff0000; 4002 urtwn_write_4(sc, R92C_GPIO_PIN_CTRL, reg); 4003 4004 /* Disable GPIO[10:8] */ 4005 urtwn_write_1(sc, R92C_GPIO_MUXCFG + 3, 0x00); 4006 4007 reg = urtwn_read_2(sc, R92C_GPIO_MUXCFG + 2) & ~0x00f0; 4008 reg |= (((reg & 0x000f) << 4) | 0x0780); 4009 urtwn_write_2(sc, R92C_GPIO_PIN_CTRL+2, reg); 4010 4011 /* Disable LED0 & 1 */ 4012 urtwn_write_2(sc, R92C_LEDCFG0, 0x8080); 4013 4014 /* 4015 * Reset digital sequence 4016 */ 4017 if (disabled) { 4018 /* Disable ELDR clock */ 4019 urtwn_write_2(sc, R92C_SYS_CLKR, 0x70A3); 4020 /* Isolated ELDR to PON */ 4021 urtwn_write_1(sc, R92C_SYS_ISO_CTRL + 1, 0x82); 4022 } 4023 4024 /* 4025 * Disable analog sequence 4026 */ 4027 if (disabled) { 4028 /* Disable A15 power */ 4029 urtwn_write_1(sc, R92C_LDOA15_CTRL, 0x04); 4030 /* Disable digital core power */ 4031 urtwn_write_1(sc, R92C_LDOV12D_CTRL, 4032 urtwn_read_1(sc, R92C_LDOV12D_CTRL) & 4033 ~R92C_LDOV12D_CTRL_LDV12_EN); 4034 } 4035 4036 /* Enter PFM mode */ 4037 urtwn_write_1(sc, R92C_SPS0_CTRL, 0x23); 4038 4039 /* Set USB suspend */ 4040 urtwn_write_2(sc, R92C_APS_FSMCO, 4041 R92C_APS_FSMCO_APDM_HOST | 4042 R92C_APS_FSMCO_AFSM_HSUS | 4043 R92C_APS_FSMCO_PFM_ALDN); 4044 4045 urtwn_write_1(sc, R92C_RSV_CTRL, 0x0E); 4046 4047 mutex_exit(&sc->sc_write_mtx); 4048 } 4049 4050 MODULE(MODULE_CLASS_DRIVER, if_urtwn, "bpf"); 4051 4052 #ifdef _MODULE 4053 #include "ioconf.c" 4054 #endif 4055 4056 static int 4057 if_urtwn_modcmd(modcmd_t cmd, void *aux) 4058 { 4059 int error = 0; 4060 4061 switch (cmd) { 4062 case MODULE_CMD_INIT: 4063 #ifdef _MODULE 4064 error = config_init_component(cfdriver_ioconf_urtwn, 4065 cfattach_ioconf_urtwn, cfdata_ioconf_urtwn); 4066 #endif 4067 return (error); 4068 case MODULE_CMD_FINI: 4069 #ifdef _MODULE 4070 error = config_fini_component(cfdriver_ioconf_urtwn, 4071 cfattach_ioconf_urtwn, cfdata_ioconf_urtwn); 4072 #endif 4073 return (error); 4074 default: 4075 return (ENOTTY); 4076 } 4077 } 4078
Indexes created Tue Sep 30 06:09:59 GMT 2025