if_wpi.c revision 1.2.2.2
1 1.2.2.2 yamt /* $NetBSD: if_wpi.c,v 1.2.2.2 2006/09/03 15:24:22 yamt Exp $ */ 2 1.2.2.2 yamt 3 1.2.2.2 yamt /*- 4 1.2.2.2 yamt * Copyright (c) 2006 5 1.2.2.2 yamt * Damien Bergamini <damien.bergamini (at) free.fr> 6 1.2.2.2 yamt * 7 1.2.2.2 yamt * Permission to use, copy, modify, and distribute this software for any 8 1.2.2.2 yamt * purpose with or without fee is hereby granted, provided that the above 9 1.2.2.2 yamt * copyright notice and this permission notice appear in all copies. 10 1.2.2.2 yamt * 11 1.2.2.2 yamt * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 1.2.2.2 yamt * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 1.2.2.2 yamt * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 1.2.2.2 yamt * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 1.2.2.2 yamt * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 1.2.2.2 yamt * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 1.2.2.2 yamt * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 1.2.2.2 yamt */ 19 1.2.2.2 yamt 20 1.2.2.2 yamt #include <sys/cdefs.h> 21 1.2.2.2 yamt __KERNEL_RCSID(0, "$NetBSD: if_wpi.c,v 1.2.2.2 2006/09/03 15:24:22 yamt Exp $"); 22 1.2.2.2 yamt 23 1.2.2.2 yamt /* 24 1.2.2.2 yamt * Driver for Intel PRO/Wireless 3945ABG 802.11 network adapters. 25 1.2.2.2 yamt */ 26 1.2.2.2 yamt 27 1.2.2.2 yamt #include "bpfilter.h" 28 1.2.2.2 yamt 29 1.2.2.2 yamt #include <sys/param.h> 30 1.2.2.2 yamt #include <sys/sockio.h> 31 1.2.2.2 yamt #include <sys/sysctl.h> 32 1.2.2.2 yamt #include <sys/mbuf.h> 33 1.2.2.2 yamt #include <sys/kernel.h> 34 1.2.2.2 yamt #include <sys/socket.h> 35 1.2.2.2 yamt #include <sys/systm.h> 36 1.2.2.2 yamt #include <sys/malloc.h> 37 1.2.2.2 yamt #include <sys/conf.h> 38 1.2.2.2 yamt #include <sys/kauth.h> 39 1.2.2.2 yamt 40 1.2.2.2 yamt #include <machine/bus.h> 41 1.2.2.2 yamt #include <machine/endian.h> 42 1.2.2.2 yamt #include <machine/intr.h> 43 1.2.2.2 yamt 44 1.2.2.2 yamt #include <dev/pci/pcireg.h> 45 1.2.2.2 yamt #include <dev/pci/pcivar.h> 46 1.2.2.2 yamt #include <dev/pci/pcidevs.h> 47 1.2.2.2 yamt 48 1.2.2.2 yamt #if NBPFILTER > 0 49 1.2.2.2 yamt #include <net/bpf.h> 50 1.2.2.2 yamt #endif 51 1.2.2.2 yamt #include <net/if.h> 52 1.2.2.2 yamt #include <net/if_arp.h> 53 1.2.2.2 yamt #include <net/if_dl.h> 54 1.2.2.2 yamt #include <net/if_ether.h> 55 1.2.2.2 yamt #include <net/if_media.h> 56 1.2.2.2 yamt #include <net/if_types.h> 57 1.2.2.2 yamt 58 1.2.2.2 yamt #include <net80211/ieee80211_var.h> 59 1.2.2.2 yamt #include <net80211/ieee80211_radiotap.h> 60 1.2.2.2 yamt 61 1.2.2.2 yamt #include <netinet/in.h> 62 1.2.2.2 yamt #include <netinet/in_systm.h> 63 1.2.2.2 yamt #include <netinet/in_var.h> 64 1.2.2.2 yamt #include <netinet/ip.h> 65 1.2.2.2 yamt 66 1.2.2.2 yamt #include <dev/firmload.h> 67 1.2.2.2 yamt 68 1.2.2.2 yamt #include <dev/pci/if_wpireg.h> 69 1.2.2.2 yamt #include <dev/pci/if_wpivar.h> 70 1.2.2.2 yamt 71 1.2.2.2 yamt #ifdef WPI_DEBUG 72 1.2.2.2 yamt #define DPRINTF(x) if (wpi_debug > 0) printf x 73 1.2.2.2 yamt #define DPRINTFN(n, x) if (wpi_debug >= (n)) printf x 74 1.2.2.2 yamt int wpi_debug = 1; 75 1.2.2.2 yamt #else 76 1.2.2.2 yamt #define DPRINTF(x) 77 1.2.2.2 yamt #define DPRINTFN(n, x) 78 1.2.2.2 yamt #endif 79 1.2.2.2 yamt 80 1.2.2.2 yamt /* 81 1.2.2.2 yamt * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 82 1.2.2.2 yamt */ 83 1.2.2.2 yamt static const struct ieee80211_rateset wpi_rateset_11a = 84 1.2.2.2 yamt { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 85 1.2.2.2 yamt 86 1.2.2.2 yamt static const struct ieee80211_rateset wpi_rateset_11b = 87 1.2.2.2 yamt { 4, { 2, 4, 11, 22 } }; 88 1.2.2.2 yamt 89 1.2.2.2 yamt static const struct ieee80211_rateset wpi_rateset_11g = 90 1.2.2.2 yamt { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 91 1.2.2.2 yamt 92 1.2.2.2 yamt static const uint8_t wpi_ridx_to_plcp[] = { 93 1.2.2.2 yamt 0xd, 0xf, 0x5, 0x7, 0x9, 0xb, 0x1, 0x3, /* OFDM R1-R4 */ 94 1.2.2.2 yamt 10, 20, 55, 110 /* CCK */ 95 1.2.2.2 yamt }; 96 1.2.2.2 yamt 97 1.2.2.2 yamt static int wpi_match(struct device *, struct cfdata *, void *); 98 1.2.2.2 yamt static void wpi_attach(struct device *, struct device *, void *); 99 1.2.2.2 yamt static int wpi_detach(struct device*, int); 100 1.2.2.2 yamt static void wpi_power(int, void *); 101 1.2.2.2 yamt static int wpi_dma_contig_alloc(struct wpi_softc *, struct wpi_dma_info *, 102 1.2.2.2 yamt void **, bus_size_t, bus_size_t, int); 103 1.2.2.2 yamt static void wpi_dma_contig_free(struct wpi_softc *, struct wpi_dma_info *); 104 1.2.2.2 yamt static int wpi_alloc_shared(struct wpi_softc *); 105 1.2.2.2 yamt static void wpi_free_shared(struct wpi_softc *); 106 1.2.2.2 yamt static int wpi_alloc_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); 107 1.2.2.2 yamt static void wpi_reset_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); 108 1.2.2.2 yamt static void wpi_free_rx_ring(struct wpi_softc *, struct wpi_rx_ring *); 109 1.2.2.2 yamt static int wpi_alloc_tx_ring(struct wpi_softc *, struct wpi_tx_ring *, int, 110 1.2.2.2 yamt int); 111 1.2.2.2 yamt static void wpi_reset_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); 112 1.2.2.2 yamt static void wpi_free_tx_ring(struct wpi_softc *, struct wpi_tx_ring *); 113 1.2.2.2 yamt static struct ieee80211_node * wpi_node_alloc(struct ieee80211_node_table *); 114 1.2.2.2 yamt static int wpi_media_change(struct ifnet *); 115 1.2.2.2 yamt static int wpi_newstate(struct ieee80211com *, enum ieee80211_state, int); 116 1.2.2.2 yamt static void wpi_mem_lock(struct wpi_softc *); 117 1.2.2.2 yamt static void wpi_mem_unlock(struct wpi_softc *); 118 1.2.2.2 yamt static uint32_t wpi_mem_read(struct wpi_softc *, uint16_t); 119 1.2.2.2 yamt static void wpi_mem_write(struct wpi_softc *, uint16_t, uint32_t); 120 1.2.2.2 yamt static void wpi_mem_write_region_4(struct wpi_softc *, uint16_t, 121 1.2.2.2 yamt const uint32_t *, int); 122 1.2.2.2 yamt static uint16_t wpi_read_prom_word(struct wpi_softc *, uint32_t); 123 1.2.2.2 yamt static int wpi_load_firmware(struct wpi_softc *, uint32_t, const char *, 124 1.2.2.2 yamt int); 125 1.2.2.2 yamt static void wpi_rx_intr(struct wpi_softc *, struct wpi_rx_desc *, 126 1.2.2.2 yamt struct wpi_rx_data *); 127 1.2.2.2 yamt static void wpi_tx_intr(struct wpi_softc *, struct wpi_rx_desc *); 128 1.2.2.2 yamt static void wpi_cmd_intr(struct wpi_softc *, struct wpi_rx_desc *); 129 1.2.2.2 yamt static void wpi_notif_intr(struct wpi_softc *); 130 1.2.2.2 yamt static int wpi_intr(void *); 131 1.2.2.2 yamt static uint8_t wpi_plcp_signal(int); 132 1.2.2.2 yamt static int wpi_tx_data(struct wpi_softc *, struct mbuf *, 133 1.2.2.2 yamt struct ieee80211_node *, int); 134 1.2.2.2 yamt static void wpi_start(struct ifnet *); 135 1.2.2.2 yamt static void wpi_watchdog(struct ifnet *); 136 1.2.2.2 yamt static int wpi_ioctl(struct ifnet *, u_long, caddr_t); 137 1.2.2.2 yamt static void wpi_read_eeprom(struct wpi_softc *); 138 1.2.2.2 yamt static int wpi_cmd(struct wpi_softc *, int, const void *, int, int); 139 1.2.2.2 yamt static int wpi_wme_update(struct ieee80211com *); 140 1.2.2.2 yamt static int wpi_mrr_setup(struct wpi_softc *); 141 1.2.2.2 yamt static void wpi_set_led(struct wpi_softc *, uint8_t, uint8_t, uint8_t); 142 1.2.2.2 yamt static void wpi_enable_tsf(struct wpi_softc *, struct ieee80211_node *); 143 1.2.2.2 yamt static int wpi_setup_beacon(struct wpi_softc *, struct ieee80211_node *); 144 1.2.2.2 yamt static int wpi_auth(struct wpi_softc *); 145 1.2.2.2 yamt static int wpi_scan(struct wpi_softc *, uint16_t); 146 1.2.2.2 yamt static int wpi_config(struct wpi_softc *); 147 1.2.2.2 yamt static void wpi_stop_master(struct wpi_softc *); 148 1.2.2.2 yamt static int wpi_power_up(struct wpi_softc *); 149 1.2.2.2 yamt static int wpi_reset(struct wpi_softc *); 150 1.2.2.2 yamt static void wpi_hw_config(struct wpi_softc *); 151 1.2.2.2 yamt static int wpi_init(struct ifnet *); 152 1.2.2.2 yamt static void wpi_stop(struct ifnet *, int); 153 1.2.2.2 yamt 154 1.2.2.2 yamt /* rate control algorithm: should be moved to net80211 */ 155 1.2.2.2 yamt static void wpi_amrr_init(struct wpi_amrr *); 156 1.2.2.2 yamt static void wpi_amrr_timeout(void *); 157 1.2.2.2 yamt static void wpi_amrr_ratectl(void *, struct ieee80211_node *); 158 1.2.2.2 yamt 159 1.2.2.2 yamt CFATTACH_DECL(wpi, sizeof (struct wpi_softc), wpi_match, wpi_attach, 160 1.2.2.2 yamt wpi_detach, NULL); 161 1.2.2.2 yamt 162 1.2.2.2 yamt static int 163 1.2.2.2 yamt wpi_match(struct device *parent, struct cfdata *match, void *aux) 164 1.2.2.2 yamt { 165 1.2.2.2 yamt struct pci_attach_args *pa = aux; 166 1.2.2.2 yamt 167 1.2.2.2 yamt if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 168 1.2.2.2 yamt return 0; 169 1.2.2.2 yamt 170 1.2.2.2 yamt if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_3945ABG_1 || 171 1.2.2.2 yamt PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_PRO_WL_3945ABG_2) 172 1.2.2.2 yamt return 1; 173 1.2.2.2 yamt 174 1.2.2.2 yamt return 0; 175 1.2.2.2 yamt } 176 1.2.2.2 yamt 177 1.2.2.2 yamt /* Base Address Register */ 178 1.2.2.2 yamt #define WPI_PCI_BAR0 0x10 179 1.2.2.2 yamt 180 1.2.2.2 yamt static void 181 1.2.2.2 yamt wpi_attach(struct device *parent, struct device *self, void *aux) 182 1.2.2.2 yamt { 183 1.2.2.2 yamt struct wpi_softc *sc = (struct wpi_softc *)self; 184 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 185 1.2.2.2 yamt struct ifnet *ifp = &sc->sc_ec.ec_if; 186 1.2.2.2 yamt struct pci_attach_args *pa = aux; 187 1.2.2.2 yamt const char *intrstr; 188 1.2.2.2 yamt char devinfo[256]; 189 1.2.2.2 yamt bus_space_tag_t memt; 190 1.2.2.2 yamt bus_space_handle_t memh; 191 1.2.2.2 yamt bus_addr_t base; 192 1.2.2.2 yamt pci_intr_handle_t ih; 193 1.2.2.2 yamt pcireg_t data; 194 1.2.2.2 yamt int error, ac, revision, i; 195 1.2.2.2 yamt 196 1.2.2.2 yamt sc->sc_pct = pa->pa_pc; 197 1.2.2.2 yamt sc->sc_pcitag = pa->pa_tag; 198 1.2.2.2 yamt 199 1.2.2.2 yamt callout_init(&sc->amrr_ch); 200 1.2.2.2 yamt 201 1.2.2.2 yamt pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof devinfo); 202 1.2.2.2 yamt revision = PCI_REVISION(pa->pa_class); 203 1.2.2.2 yamt aprint_normal(": %s (rev. 0x%02x)\n", devinfo, revision); 204 1.2.2.2 yamt 205 1.2.2.2 yamt /* clear device specific PCI configuration register 0x41 */ 206 1.2.2.2 yamt data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 207 1.2.2.2 yamt data &= ~0x0000ff00; 208 1.2.2.2 yamt pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 209 1.2.2.2 yamt 210 1.2.2.2 yamt /* enable bus-mastering */ 211 1.2.2.2 yamt data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 212 1.2.2.2 yamt data |= PCI_COMMAND_MASTER_ENABLE; 213 1.2.2.2 yamt pci_conf_write(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG, data); 214 1.2.2.2 yamt 215 1.2.2.2 yamt /* map the register window */ 216 1.2.2.2 yamt error = pci_mapreg_map(pa, WPI_PCI_BAR0, PCI_MAPREG_TYPE_MEM | 217 1.2.2.2 yamt PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, &base, &sc->sc_sz); 218 1.2.2.2 yamt if (error != 0) { 219 1.2.2.2 yamt aprint_error("%s: could not map memory space\n", 220 1.2.2.2 yamt sc->sc_dev.dv_xname); 221 1.2.2.2 yamt return; 222 1.2.2.2 yamt } 223 1.2.2.2 yamt 224 1.2.2.2 yamt sc->sc_st = memt; 225 1.2.2.2 yamt sc->sc_sh = memh; 226 1.2.2.2 yamt sc->sc_dmat = pa->pa_dmat; 227 1.2.2.2 yamt 228 1.2.2.2 yamt if (pci_intr_map(pa, &ih) != 0) { 229 1.2.2.2 yamt aprint_error("%s: could not map interrupt\n", 230 1.2.2.2 yamt sc->sc_dev.dv_xname); 231 1.2.2.2 yamt return; 232 1.2.2.2 yamt } 233 1.2.2.2 yamt 234 1.2.2.2 yamt intrstr = pci_intr_string(sc->sc_pct, ih); 235 1.2.2.2 yamt sc->sc_ih = pci_intr_establish(sc->sc_pct, ih, IPL_NET, wpi_intr, sc); 236 1.2.2.2 yamt if (sc->sc_ih == NULL) { 237 1.2.2.2 yamt aprint_error("%s: could not establish interrupt", 238 1.2.2.2 yamt sc->sc_dev.dv_xname); 239 1.2.2.2 yamt if (intrstr != NULL) 240 1.2.2.2 yamt aprint_error(" at %s", intrstr); 241 1.2.2.2 yamt aprint_error("\n"); 242 1.2.2.2 yamt return; 243 1.2.2.2 yamt } 244 1.2.2.2 yamt aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 245 1.2.2.2 yamt 246 1.2.2.2 yamt if (wpi_reset(sc) != 0) { 247 1.2.2.2 yamt aprint_error("%s: could not reset adapter\n", 248 1.2.2.2 yamt sc->sc_dev.dv_xname); 249 1.2.2.2 yamt return; 250 1.2.2.2 yamt } 251 1.2.2.2 yamt 252 1.2.2.2 yamt /* 253 1.2.2.2 yamt * Allocate shared page and Tx/Rx rings. 254 1.2.2.2 yamt */ 255 1.2.2.2 yamt if ((error = wpi_alloc_shared(sc)) != 0) { 256 1.2.2.2 yamt aprint_error("%s: could not allocate shared area\n", 257 1.2.2.2 yamt sc->sc_dev.dv_xname); 258 1.2.2.2 yamt return; 259 1.2.2.2 yamt } 260 1.2.2.2 yamt 261 1.2.2.2 yamt for (ac = 0; ac < 4; ac++) { 262 1.2.2.2 yamt error = wpi_alloc_tx_ring(sc, &sc->txq[ac], WPI_TX_RING_COUNT, ac); 263 1.2.2.2 yamt if (error != 0) { 264 1.2.2.2 yamt aprint_error("%s: could not allocate Tx ring %d\n", 265 1.2.2.2 yamt sc->sc_dev.dv_xname, ac); 266 1.2.2.2 yamt goto fail1; 267 1.2.2.2 yamt } 268 1.2.2.2 yamt } 269 1.2.2.2 yamt 270 1.2.2.2 yamt error = wpi_alloc_tx_ring(sc, &sc->cmdq, WPI_CMD_RING_COUNT, 4); 271 1.2.2.2 yamt if (error != 0) { 272 1.2.2.2 yamt aprint_error("%s: could not allocate command ring\n", 273 1.2.2.2 yamt sc->sc_dev.dv_xname); 274 1.2.2.2 yamt goto fail1; 275 1.2.2.2 yamt } 276 1.2.2.2 yamt 277 1.2.2.2 yamt error = wpi_alloc_tx_ring(sc, &sc->svcq, WPI_SVC_RING_COUNT, 5); 278 1.2.2.2 yamt if (error != 0) { 279 1.2.2.2 yamt aprint_error("%s: could not allocate service ring\n", 280 1.2.2.2 yamt sc->sc_dev.dv_xname); 281 1.2.2.2 yamt goto fail2; 282 1.2.2.2 yamt } 283 1.2.2.2 yamt 284 1.2.2.2 yamt if (wpi_alloc_rx_ring(sc, &sc->rxq) != 0) { 285 1.2.2.2 yamt aprint_error("%s: could not allocate Rx ring\n", 286 1.2.2.2 yamt sc->sc_dev.dv_xname); 287 1.2.2.2 yamt goto fail3; 288 1.2.2.2 yamt } 289 1.2.2.2 yamt 290 1.2.2.2 yamt 291 1.2.2.2 yamt ic->ic_ifp = ifp; 292 1.2.2.2 yamt ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 293 1.2.2.2 yamt ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 294 1.2.2.2 yamt ic->ic_state = IEEE80211_S_INIT; 295 1.2.2.2 yamt 296 1.2.2.2 yamt /* set device capabilities */ 297 1.2.2.2 yamt ic->ic_caps = 298 1.2.2.2 yamt IEEE80211_C_IBSS | /* IBSS mode support */ 299 1.2.2.2 yamt IEEE80211_C_WPA | /* 802.11i */ 300 1.2.2.2 yamt IEEE80211_C_MONITOR | /* monitor mode supported */ 301 1.2.2.2 yamt IEEE80211_C_TXPMGT | /* tx power management */ 302 1.2.2.2 yamt IEEE80211_C_SHSLOT | /* short slot time supported */ 303 1.2.2.2 yamt IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 304 1.2.2.2 yamt IEEE80211_C_WME; /* 802.11e */ 305 1.2.2.2 yamt 306 1.2.2.2 yamt wpi_read_eeprom(sc); 307 1.2.2.2 yamt aprint_normal("%s: 802.11 address %s\n", sc->sc_dev.dv_xname, 308 1.2.2.2 yamt ether_sprintf(ic->ic_myaddr)); 309 1.2.2.2 yamt 310 1.2.2.2 yamt /* set supported .11a rates */ 311 1.2.2.2 yamt ic->ic_sup_rates[IEEE80211_MODE_11A] = wpi_rateset_11a; 312 1.2.2.2 yamt 313 1.2.2.2 yamt /* set supported .11a channels */ 314 1.2.2.2 yamt for (i = 36; i <= 64; i += 4) { 315 1.2.2.2 yamt ic->ic_channels[i].ic_freq = 316 1.2.2.2 yamt ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 317 1.2.2.2 yamt ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 318 1.2.2.2 yamt } 319 1.2.2.2 yamt for (i = 100; i <= 140; i += 4) { 320 1.2.2.2 yamt ic->ic_channels[i].ic_freq = 321 1.2.2.2 yamt ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 322 1.2.2.2 yamt ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 323 1.2.2.2 yamt } 324 1.2.2.2 yamt for (i = 149; i <= 165; i += 4) { 325 1.2.2.2 yamt ic->ic_channels[i].ic_freq = 326 1.2.2.2 yamt ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 327 1.2.2.2 yamt ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 328 1.2.2.2 yamt } 329 1.2.2.2 yamt 330 1.2.2.2 yamt /* set supported .11b and .11g rates */ 331 1.2.2.2 yamt ic->ic_sup_rates[IEEE80211_MODE_11B] = wpi_rateset_11b; 332 1.2.2.2 yamt ic->ic_sup_rates[IEEE80211_MODE_11G] = wpi_rateset_11g; 333 1.2.2.2 yamt 334 1.2.2.2 yamt /* set supported .11b and .11g channels (1 through 14) */ 335 1.2.2.2 yamt for (i = 1; i <= 14; i++) { 336 1.2.2.2 yamt ic->ic_channels[i].ic_freq = 337 1.2.2.2 yamt ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 338 1.2.2.2 yamt ic->ic_channels[i].ic_flags = 339 1.2.2.2 yamt IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 340 1.2.2.2 yamt IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 341 1.2.2.2 yamt } 342 1.2.2.2 yamt 343 1.2.2.2 yamt ic->ic_ibss_chan = &ic->ic_channels[0]; 344 1.2.2.2 yamt 345 1.2.2.2 yamt ifp->if_softc = sc; 346 1.2.2.2 yamt ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 347 1.2.2.2 yamt ifp->if_init = wpi_init; 348 1.2.2.2 yamt ifp->if_stop = wpi_stop; 349 1.2.2.2 yamt ifp->if_ioctl = wpi_ioctl; 350 1.2.2.2 yamt ifp->if_start = wpi_start; 351 1.2.2.2 yamt ifp->if_watchdog = wpi_watchdog; 352 1.2.2.2 yamt IFQ_SET_READY(&ifp->if_snd); 353 1.2.2.2 yamt memcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 354 1.2.2.2 yamt 355 1.2.2.2 yamt if_attach(ifp); 356 1.2.2.2 yamt ieee80211_ifattach(ic); 357 1.2.2.2 yamt /* override default methods */ 358 1.2.2.2 yamt ic->ic_node_alloc = wpi_node_alloc; 359 1.2.2.2 yamt ic->ic_wme.wme_update = wpi_wme_update; 360 1.2.2.2 yamt 361 1.2.2.2 yamt /* override state transition machine */ 362 1.2.2.2 yamt sc->sc_newstate = ic->ic_newstate; 363 1.2.2.2 yamt ic->ic_newstate = wpi_newstate; 364 1.2.2.2 yamt ieee80211_media_init(ic, wpi_media_change, ieee80211_media_status); 365 1.2.2.2 yamt 366 1.2.2.2 yamt /* set powerhook */ 367 1.2.2.2 yamt sc->powerhook = powerhook_establish(wpi_power, sc); 368 1.2.2.2 yamt 369 1.2.2.2 yamt #if NBPFILTER > 0 370 1.2.2.2 yamt bpfattach2(ifp, DLT_IEEE802_11_RADIO, 371 1.2.2.2 yamt sizeof (struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN, 372 1.2.2.2 yamt &sc->sc_drvbpf); 373 1.2.2.2 yamt 374 1.2.2.2 yamt sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 375 1.2.2.2 yamt sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 376 1.2.2.2 yamt sc->sc_rxtap.wr_ihdr.it_present = htole32(WPI_RX_RADIOTAP_PRESENT); 377 1.2.2.2 yamt 378 1.2.2.2 yamt sc->sc_txtap_len = sizeof sc->sc_txtapu; 379 1.2.2.2 yamt sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 380 1.2.2.2 yamt sc->sc_txtap.wt_ihdr.it_present = htole32(WPI_TX_RADIOTAP_PRESENT); 381 1.2.2.2 yamt #endif 382 1.2.2.2 yamt 383 1.2.2.2 yamt ieee80211_announce(ic); 384 1.2.2.2 yamt 385 1.2.2.2 yamt return; 386 1.2.2.2 yamt 387 1.2.2.2 yamt fail3: wpi_free_tx_ring(sc, &sc->svcq); 388 1.2.2.2 yamt fail2: wpi_free_tx_ring(sc, &sc->cmdq); 389 1.2.2.2 yamt fail1: while (--ac >= 0) 390 1.2.2.2 yamt wpi_free_tx_ring(sc, &sc->txq[ac]); 391 1.2.2.2 yamt wpi_free_shared(sc); 392 1.2.2.2 yamt } 393 1.2.2.2 yamt 394 1.2.2.2 yamt static int 395 1.2.2.2 yamt wpi_detach(struct device* self, int flags) 396 1.2.2.2 yamt { 397 1.2.2.2 yamt struct wpi_softc *sc = (struct wpi_softc *)self; 398 1.2.2.2 yamt struct ifnet *ifp = &sc->sc_ec.ec_if; 399 1.2.2.2 yamt int ac; 400 1.2.2.2 yamt 401 1.2.2.2 yamt wpi_stop(ifp, 1); 402 1.2.2.2 yamt 403 1.2.2.2 yamt #if NBPFILTER > 0 404 1.2.2.2 yamt if (ifp != NULL) 405 1.2.2.2 yamt bpfdetach(ifp); 406 1.2.2.2 yamt #endif 407 1.2.2.2 yamt ieee80211_ifdetach(&sc->sc_ic); 408 1.2.2.2 yamt if (ifp != NULL) 409 1.2.2.2 yamt if_detach(ifp); 410 1.2.2.2 yamt 411 1.2.2.2 yamt for (ac = 0; ac < 4; ac++) 412 1.2.2.2 yamt wpi_free_tx_ring(sc, &sc->txq[ac]); 413 1.2.2.2 yamt wpi_free_tx_ring(sc, &sc->cmdq); 414 1.2.2.2 yamt wpi_free_tx_ring(sc, &sc->svcq); 415 1.2.2.2 yamt wpi_free_rx_ring(sc, &sc->rxq); 416 1.2.2.2 yamt wpi_free_shared(sc); 417 1.2.2.2 yamt 418 1.2.2.2 yamt if (sc->sc_ih != NULL) { 419 1.2.2.2 yamt pci_intr_disestablish(sc->sc_pct, sc->sc_ih); 420 1.2.2.2 yamt sc->sc_ih = NULL; 421 1.2.2.2 yamt } 422 1.2.2.2 yamt 423 1.2.2.2 yamt bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_sz); 424 1.2.2.2 yamt 425 1.2.2.2 yamt return 0; 426 1.2.2.2 yamt } 427 1.2.2.2 yamt 428 1.2.2.2 yamt static void 429 1.2.2.2 yamt wpi_power(int why, void *arg) 430 1.2.2.2 yamt { 431 1.2.2.2 yamt struct wpi_softc *sc = arg; 432 1.2.2.2 yamt struct ifnet *ifp; 433 1.2.2.2 yamt pcireg_t data; 434 1.2.2.2 yamt int s; 435 1.2.2.2 yamt 436 1.2.2.2 yamt if (why != PWR_RESUME) 437 1.2.2.2 yamt return; 438 1.2.2.2 yamt 439 1.2.2.2 yamt /* clear device specific PCI configuration register 0x41 */ 440 1.2.2.2 yamt data = pci_conf_read(sc->sc_pct, sc->sc_pcitag, 0x40); 441 1.2.2.2 yamt data &= ~0x0000ff00; 442 1.2.2.2 yamt pci_conf_write(sc->sc_pct, sc->sc_pcitag, 0x40, data); 443 1.2.2.2 yamt 444 1.2.2.2 yamt s = splnet(); 445 1.2.2.2 yamt ifp = sc->sc_ic.ic_ifp; 446 1.2.2.2 yamt if (ifp->if_flags & IFF_UP) { 447 1.2.2.2 yamt ifp->if_init(ifp); 448 1.2.2.2 yamt if (ifp->if_flags & IFF_RUNNING) 449 1.2.2.2 yamt ifp->if_start(ifp); 450 1.2.2.2 yamt } 451 1.2.2.2 yamt splx(s); 452 1.2.2.2 yamt } 453 1.2.2.2 yamt 454 1.2.2.2 yamt static int 455 1.2.2.2 yamt wpi_dma_contig_alloc(struct wpi_softc *sc, struct wpi_dma_info *dma, 456 1.2.2.2 yamt void **kvap, bus_size_t size, bus_size_t alignment, int flags) 457 1.2.2.2 yamt { 458 1.2.2.2 yamt int nsegs, error; 459 1.2.2.2 yamt 460 1.2.2.2 yamt dma->size = size; 461 1.2.2.2 yamt 462 1.2.2.2 yamt error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0, 463 1.2.2.2 yamt flags, &dma->map); 464 1.2.2.2 yamt if (error != 0) { 465 1.2.2.2 yamt aprint_error("%s: could not create DMA map\n", 466 1.2.2.2 yamt sc->sc_dev.dv_xname); 467 1.2.2.2 yamt goto fail; 468 1.2.2.2 yamt } 469 1.2.2.2 yamt 470 1.2.2.2 yamt error = bus_dmamem_alloc(sc->sc_dmat, size, alignment, 0, &dma->seg, 471 1.2.2.2 yamt 1, &nsegs, flags); 472 1.2.2.2 yamt if (error != 0) { 473 1.2.2.2 yamt aprint_error("%s: could not allocate DMA memory\n", 474 1.2.2.2 yamt sc->sc_dev.dv_xname); 475 1.2.2.2 yamt goto fail; 476 1.2.2.2 yamt } 477 1.2.2.2 yamt 478 1.2.2.2 yamt error = bus_dmamem_map(sc->sc_dmat, &dma->seg, 1, size, 479 1.2.2.2 yamt &dma->vaddr, flags); 480 1.2.2.2 yamt if (error != 0) { 481 1.2.2.2 yamt aprint_error("%s: could not map DMA memory\n", 482 1.2.2.2 yamt sc->sc_dev.dv_xname); 483 1.2.2.2 yamt goto fail; 484 1.2.2.2 yamt } 485 1.2.2.2 yamt 486 1.2.2.2 yamt error = bus_dmamap_load(sc->sc_dmat, dma->map, dma->vaddr, 487 1.2.2.2 yamt size, NULL, flags); 488 1.2.2.2 yamt if (error != 0) { 489 1.2.2.2 yamt aprint_error("%s: could not load DMA memory\n", 490 1.2.2.2 yamt sc->sc_dev.dv_xname); 491 1.2.2.2 yamt goto fail; 492 1.2.2.2 yamt } 493 1.2.2.2 yamt 494 1.2.2.2 yamt memset(dma->vaddr, 0, size); 495 1.2.2.2 yamt 496 1.2.2.2 yamt dma->paddr = dma->map->dm_segs[0].ds_addr; 497 1.2.2.2 yamt *kvap = dma->vaddr; 498 1.2.2.2 yamt 499 1.2.2.2 yamt return 0; 500 1.2.2.2 yamt 501 1.2.2.2 yamt fail: wpi_dma_contig_free(sc, dma); 502 1.2.2.2 yamt return error; 503 1.2.2.2 yamt } 504 1.2.2.2 yamt 505 1.2.2.2 yamt static void 506 1.2.2.2 yamt wpi_dma_contig_free(struct wpi_softc *sc, struct wpi_dma_info *dma) 507 1.2.2.2 yamt { 508 1.2.2.2 yamt if (dma->map != NULL) { 509 1.2.2.2 yamt if (dma->vaddr != NULL) { 510 1.2.2.2 yamt bus_dmamap_unload(sc->sc_dmat, dma->map); 511 1.2.2.2 yamt bus_dmamem_unmap(sc->sc_dmat, dma->vaddr, dma->size); 512 1.2.2.2 yamt bus_dmamem_free(sc->sc_dmat, &dma->seg, 1); 513 1.2.2.2 yamt dma->vaddr = NULL; 514 1.2.2.2 yamt } 515 1.2.2.2 yamt bus_dmamap_destroy(sc->sc_dmat, dma->map); 516 1.2.2.2 yamt dma->map = NULL; 517 1.2.2.2 yamt } 518 1.2.2.2 yamt } 519 1.2.2.2 yamt 520 1.2.2.2 yamt /* 521 1.2.2.2 yamt * Allocate a shared page between host and NIC. 522 1.2.2.2 yamt */ 523 1.2.2.2 yamt static int 524 1.2.2.2 yamt wpi_alloc_shared(struct wpi_softc *sc) 525 1.2.2.2 yamt { 526 1.2.2.2 yamt int error; 527 1.2.2.2 yamt /* must be aligned on a 4K-page boundary */ 528 1.2.2.2 yamt error = wpi_dma_contig_alloc(sc, &sc->shared_dma, 529 1.2.2.2 yamt (void **)&sc->shared, sizeof (struct wpi_shared), PAGE_SIZE, 530 1.2.2.2 yamt BUS_DMA_NOWAIT); 531 1.2.2.2 yamt if (error != 0) 532 1.2.2.2 yamt aprint_error("%s: could not allocate shared area DMA memory\n", 533 1.2.2.2 yamt sc->sc_dev.dv_xname); 534 1.2.2.2 yamt 535 1.2.2.2 yamt return error; 536 1.2.2.2 yamt } 537 1.2.2.2 yamt 538 1.2.2.2 yamt static void 539 1.2.2.2 yamt wpi_free_shared(struct wpi_softc *sc) 540 1.2.2.2 yamt { 541 1.2.2.2 yamt wpi_dma_contig_free(sc, &sc->shared_dma); 542 1.2.2.2 yamt } 543 1.2.2.2 yamt 544 1.2.2.2 yamt static int 545 1.2.2.2 yamt wpi_alloc_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) 546 1.2.2.2 yamt { 547 1.2.2.2 yamt struct wpi_rx_data *data; 548 1.2.2.2 yamt int i, error; 549 1.2.2.2 yamt 550 1.2.2.2 yamt ring->cur = 0; 551 1.2.2.2 yamt 552 1.2.2.2 yamt error = wpi_dma_contig_alloc(sc, &ring->desc_dma, 553 1.2.2.2 yamt (void **)&ring->desc, 554 1.2.2.2 yamt WPI_RX_RING_COUNT * sizeof (struct wpi_rx_desc), 555 1.2.2.2 yamt WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT); 556 1.2.2.2 yamt if (error != 0) { 557 1.2.2.2 yamt aprint_error("%s: could not allocate rx ring DMA memory\n", 558 1.2.2.2 yamt sc->sc_dev.dv_xname); 559 1.2.2.2 yamt goto fail; 560 1.2.2.2 yamt } 561 1.2.2.2 yamt 562 1.2.2.2 yamt /* 563 1.2.2.2 yamt * Allocate Rx buffers. 564 1.2.2.2 yamt */ 565 1.2.2.2 yamt for (i = 0; i < WPI_RX_RING_COUNT; i++) { 566 1.2.2.2 yamt data = &ring->data[i]; 567 1.2.2.2 yamt 568 1.2.2.2 yamt error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 569 1.2.2.2 yamt 0, BUS_DMA_NOWAIT, &data->map); 570 1.2.2.2 yamt if (error != 0) { 571 1.2.2.2 yamt aprint_error("%s: could not create rx buf DMA map\n", 572 1.2.2.2 yamt sc->sc_dev.dv_xname); 573 1.2.2.2 yamt goto fail; 574 1.2.2.2 yamt } 575 1.2.2.2 yamt 576 1.2.2.2 yamt MGETHDR(data->m, M_DONTWAIT, MT_DATA); 577 1.2.2.2 yamt if (data->m == NULL) { 578 1.2.2.2 yamt aprint_error("%s: could not allocate rx mbuf\n", 579 1.2.2.2 yamt sc->sc_dev.dv_xname); 580 1.2.2.2 yamt error = ENOMEM; 581 1.2.2.2 yamt goto fail; 582 1.2.2.2 yamt } 583 1.2.2.2 yamt 584 1.2.2.2 yamt MCLGET(data->m, M_DONTWAIT); 585 1.2.2.2 yamt if (!(data->m->m_flags & M_EXT)) { 586 1.2.2.2 yamt m_freem(data->m); 587 1.2.2.2 yamt data->m = NULL; 588 1.2.2.2 yamt aprint_error("%s: could not allocate rx mbuf cluster\n", 589 1.2.2.2 yamt sc->sc_dev.dv_xname); 590 1.2.2.2 yamt error = ENOMEM; 591 1.2.2.2 yamt goto fail; 592 1.2.2.2 yamt } 593 1.2.2.2 yamt 594 1.2.2.2 yamt error = bus_dmamap_load(sc->sc_dmat, data->map, 595 1.2.2.2 yamt mtod(data->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT | 596 1.2.2.2 yamt BUS_DMA_READ); 597 1.2.2.2 yamt if (error != 0) { 598 1.2.2.2 yamt aprint_error("%s: could not load rx buf DMA map\n", 599 1.2.2.2 yamt sc->sc_dev.dv_xname); 600 1.2.2.2 yamt goto fail; 601 1.2.2.2 yamt } 602 1.2.2.2 yamt 603 1.2.2.2 yamt ring->desc[i] = htole32(data->map->dm_segs[0].ds_addr); 604 1.2.2.2 yamt } 605 1.2.2.2 yamt 606 1.2.2.2 yamt return 0; 607 1.2.2.2 yamt 608 1.2.2.2 yamt fail: wpi_free_rx_ring(sc, ring); 609 1.2.2.2 yamt return error; 610 1.2.2.2 yamt } 611 1.2.2.2 yamt 612 1.2.2.2 yamt static void 613 1.2.2.2 yamt wpi_reset_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) 614 1.2.2.2 yamt { 615 1.2.2.2 yamt int ntries; 616 1.2.2.2 yamt 617 1.2.2.2 yamt wpi_mem_lock(sc); 618 1.2.2.2 yamt 619 1.2.2.2 yamt WPI_WRITE(sc, WPI_RX_CONFIG, 0); 620 1.2.2.2 yamt for (ntries = 0; ntries < 100; ntries++) { 621 1.2.2.2 yamt if (WPI_READ(sc, WPI_RX_STATUS) & WPI_RX_IDLE) 622 1.2.2.2 yamt break; 623 1.2.2.2 yamt DELAY(10); 624 1.2.2.2 yamt } 625 1.2.2.2 yamt #ifdef WPI_DEBUG 626 1.2.2.2 yamt if (ntries == 100 && wpi_debug > 0) 627 1.2.2.2 yamt aprint_error("%s: timeout resetting Rx ring\n", 628 1.2.2.2 yamt sc->sc_dev.dv_xname); 629 1.2.2.2 yamt #endif 630 1.2.2.2 yamt wpi_mem_unlock(sc); 631 1.2.2.2 yamt 632 1.2.2.2 yamt ring->cur = 0; 633 1.2.2.2 yamt } 634 1.2.2.2 yamt 635 1.2.2.2 yamt static void 636 1.2.2.2 yamt wpi_free_rx_ring(struct wpi_softc *sc, struct wpi_rx_ring *ring) 637 1.2.2.2 yamt { 638 1.2.2.2 yamt struct wpi_rx_data *data; 639 1.2.2.2 yamt int i; 640 1.2.2.2 yamt 641 1.2.2.2 yamt wpi_dma_contig_free(sc, &ring->desc_dma); 642 1.2.2.2 yamt 643 1.2.2.2 yamt for (i = 0; i < WPI_RX_RING_COUNT; i++) { 644 1.2.2.2 yamt data = &ring->data[i]; 645 1.2.2.2 yamt 646 1.2.2.2 yamt if (data->m != NULL) { 647 1.2.2.2 yamt bus_dmamap_unload(sc->sc_dmat, data->map); 648 1.2.2.2 yamt m_freem(data->m); 649 1.2.2.2 yamt } 650 1.2.2.2 yamt bus_dmamap_destroy(sc->sc_dmat, data->map); 651 1.2.2.2 yamt } 652 1.2.2.2 yamt } 653 1.2.2.2 yamt 654 1.2.2.2 yamt static int 655 1.2.2.2 yamt wpi_alloc_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring, int count, 656 1.2.2.2 yamt int qid) 657 1.2.2.2 yamt { 658 1.2.2.2 yamt struct wpi_tx_data *data; 659 1.2.2.2 yamt int i, error; 660 1.2.2.2 yamt 661 1.2.2.2 yamt ring->qid = qid; 662 1.2.2.2 yamt ring->count = count; 663 1.2.2.2 yamt ring->queued = 0; 664 1.2.2.2 yamt ring->cur = 0; 665 1.2.2.2 yamt 666 1.2.2.2 yamt error = wpi_dma_contig_alloc(sc, &ring->desc_dma, 667 1.2.2.2 yamt (void **)&ring->desc, count * sizeof (struct wpi_tx_desc), 668 1.2.2.2 yamt WPI_RING_DMA_ALIGN, BUS_DMA_NOWAIT); 669 1.2.2.2 yamt if (error != 0) { 670 1.2.2.2 yamt aprint_error("%s: could not allocate tx ring DMA memory\n", 671 1.2.2.2 yamt sc->sc_dev.dv_xname); 672 1.2.2.2 yamt goto fail; 673 1.2.2.2 yamt } 674 1.2.2.2 yamt 675 1.2.2.2 yamt /* update shared page with ring's base address */ 676 1.2.2.2 yamt sc->shared->txbase[qid] = htole32(ring->desc_dma.paddr); 677 1.2.2.2 yamt 678 1.2.2.2 yamt error = wpi_dma_contig_alloc(sc, &ring->cmd_dma, (void **)&ring->cmd, 679 1.2.2.2 yamt count * sizeof (struct wpi_tx_cmd), 4, BUS_DMA_NOWAIT); 680 1.2.2.2 yamt if (error != 0) { 681 1.2.2.2 yamt aprint_error("%s: could not allocate tx cmd DMA memory\n", 682 1.2.2.2 yamt sc->sc_dev.dv_xname); 683 1.2.2.2 yamt goto fail; 684 1.2.2.2 yamt } 685 1.2.2.2 yamt 686 1.2.2.2 yamt ring->data = malloc(count * sizeof (struct wpi_tx_data), M_DEVBUF, 687 1.2.2.2 yamt M_NOWAIT); 688 1.2.2.2 yamt if (ring->data == NULL) { 689 1.2.2.2 yamt aprint_error("%s: could not allocate tx data slots\n", 690 1.2.2.2 yamt sc->sc_dev.dv_xname); 691 1.2.2.2 yamt goto fail; 692 1.2.2.2 yamt } 693 1.2.2.2 yamt 694 1.2.2.2 yamt memset(ring->data, 0, count * sizeof (struct wpi_tx_data)); 695 1.2.2.2 yamt 696 1.2.2.2 yamt for (i = 0; i < count; i++) { 697 1.2.2.2 yamt data = &ring->data[i]; 698 1.2.2.2 yamt 699 1.2.2.2 yamt error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 700 1.2.2.2 yamt WPI_MAX_SCATTER - 1, MCLBYTES, 0, BUS_DMA_NOWAIT, 701 1.2.2.2 yamt &data->map); 702 1.2.2.2 yamt if (error != 0) { 703 1.2.2.2 yamt aprint_error("%s: could not create tx buf DMA map\n", 704 1.2.2.2 yamt sc->sc_dev.dv_xname); 705 1.2.2.2 yamt goto fail; 706 1.2.2.2 yamt } 707 1.2.2.2 yamt } 708 1.2.2.2 yamt 709 1.2.2.2 yamt return 0; 710 1.2.2.2 yamt 711 1.2.2.2 yamt fail: wpi_free_tx_ring(sc, ring); 712 1.2.2.2 yamt return error; 713 1.2.2.2 yamt } 714 1.2.2.2 yamt 715 1.2.2.2 yamt static void 716 1.2.2.2 yamt wpi_reset_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) 717 1.2.2.2 yamt { 718 1.2.2.2 yamt struct wpi_tx_data *data; 719 1.2.2.2 yamt int i, ntries; 720 1.2.2.2 yamt 721 1.2.2.2 yamt wpi_mem_lock(sc); 722 1.2.2.2 yamt 723 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_CONFIG(ring->qid), 0); 724 1.2.2.2 yamt for (ntries = 0; ntries < 100; ntries++) { 725 1.2.2.2 yamt if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(ring->qid)) 726 1.2.2.2 yamt break; 727 1.2.2.2 yamt DELAY(10); 728 1.2.2.2 yamt } 729 1.2.2.2 yamt #ifdef WPI_DEBUG 730 1.2.2.2 yamt if (ntries == 100 && wpi_debug > 0) { 731 1.2.2.2 yamt aprint_error("%s: timeout resetting Tx ring %d\n", 732 1.2.2.2 yamt sc->sc_dev.dv_xname, ring->qid); 733 1.2.2.2 yamt } 734 1.2.2.2 yamt #endif 735 1.2.2.2 yamt wpi_mem_unlock(sc); 736 1.2.2.2 yamt 737 1.2.2.2 yamt for (i = 0; i < ring->count; i++) { 738 1.2.2.2 yamt data = &ring->data[i]; 739 1.2.2.2 yamt 740 1.2.2.2 yamt if (data->m != NULL) { 741 1.2.2.2 yamt bus_dmamap_unload(sc->sc_dmat, data->map); 742 1.2.2.2 yamt m_freem(data->m); 743 1.2.2.2 yamt data->m = NULL; 744 1.2.2.2 yamt } 745 1.2.2.2 yamt } 746 1.2.2.2 yamt 747 1.2.2.2 yamt ring->queued = 0; 748 1.2.2.2 yamt ring->cur = 0; 749 1.2.2.2 yamt } 750 1.2.2.2 yamt 751 1.2.2.2 yamt static void 752 1.2.2.2 yamt wpi_free_tx_ring(struct wpi_softc *sc, struct wpi_tx_ring *ring) 753 1.2.2.2 yamt { 754 1.2.2.2 yamt struct wpi_tx_data *data; 755 1.2.2.2 yamt int i; 756 1.2.2.2 yamt 757 1.2.2.2 yamt wpi_dma_contig_free(sc, &ring->desc_dma); 758 1.2.2.2 yamt wpi_dma_contig_free(sc, &ring->cmd_dma); 759 1.2.2.2 yamt 760 1.2.2.2 yamt if (ring->data != NULL) { 761 1.2.2.2 yamt for (i = 0; i < ring->count; i++) { 762 1.2.2.2 yamt data = &ring->data[i]; 763 1.2.2.2 yamt 764 1.2.2.2 yamt if (data->m != NULL) { 765 1.2.2.2 yamt bus_dmamap_unload(sc->sc_dmat, data->map); 766 1.2.2.2 yamt m_freem(data->m); 767 1.2.2.2 yamt } 768 1.2.2.2 yamt } 769 1.2.2.2 yamt free(ring->data, M_DEVBUF); 770 1.2.2.2 yamt } 771 1.2.2.2 yamt } 772 1.2.2.2 yamt 773 1.2.2.2 yamt /*ARGUSED*/ 774 1.2.2.2 yamt static struct ieee80211_node * 775 1.2.2.2 yamt wpi_node_alloc(struct ieee80211_node_table *ic) 776 1.2.2.2 yamt { 777 1.2.2.2 yamt struct wpi_amrr *amrr; 778 1.2.2.2 yamt 779 1.2.2.2 yamt amrr = malloc(sizeof (struct wpi_amrr), M_80211_NODE, M_NOWAIT); 780 1.2.2.2 yamt if (amrr != NULL) { 781 1.2.2.2 yamt memset(amrr, 0, sizeof (struct wpi_amrr)); 782 1.2.2.2 yamt wpi_amrr_init(amrr); 783 1.2.2.2 yamt } 784 1.2.2.2 yamt return (struct ieee80211_node *)amrr; 785 1.2.2.2 yamt } 786 1.2.2.2 yamt 787 1.2.2.2 yamt static int 788 1.2.2.2 yamt wpi_media_change(struct ifnet *ifp) 789 1.2.2.2 yamt { 790 1.2.2.2 yamt int error; 791 1.2.2.2 yamt 792 1.2.2.2 yamt error = ieee80211_media_change(ifp); 793 1.2.2.2 yamt if (error != ENETRESET) 794 1.2.2.2 yamt return error; 795 1.2.2.2 yamt 796 1.2.2.2 yamt if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 797 1.2.2.2 yamt wpi_init(ifp); 798 1.2.2.2 yamt 799 1.2.2.2 yamt return 0; 800 1.2.2.2 yamt } 801 1.2.2.2 yamt 802 1.2.2.2 yamt static int 803 1.2.2.2 yamt wpi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 804 1.2.2.2 yamt { 805 1.2.2.2 yamt struct ifnet *ifp = ic->ic_ifp; 806 1.2.2.2 yamt struct wpi_softc *sc = ifp->if_softc; 807 1.2.2.2 yamt int error; 808 1.2.2.2 yamt 809 1.2.2.2 yamt callout_stop(&sc->amrr_ch); 810 1.2.2.2 yamt 811 1.2.2.2 yamt switch (nstate) { 812 1.2.2.2 yamt case IEEE80211_S_SCAN: 813 1.2.2.2 yamt ieee80211_node_table_reset(&ic->ic_scan); 814 1.2.2.2 yamt ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 815 1.2.2.2 yamt 816 1.2.2.2 yamt /* make the link LED blink while we're scanning */ 817 1.2.2.2 yamt wpi_set_led(sc, WPI_LED_LINK, 20, 2); 818 1.2.2.2 yamt 819 1.2.2.2 yamt if ((error = wpi_scan(sc, IEEE80211_CHAN_G)) != 0) { 820 1.2.2.2 yamt aprint_error("%s: could not initiate scan\n", 821 1.2.2.2 yamt sc->sc_dev.dv_xname); 822 1.2.2.2 yamt ic->ic_flags &= ~(IEEE80211_F_SCAN | IEEE80211_F_ASCAN); 823 1.2.2.2 yamt return error; 824 1.2.2.2 yamt } 825 1.2.2.2 yamt 826 1.2.2.2 yamt ic->ic_state = nstate; 827 1.2.2.2 yamt return 0; 828 1.2.2.2 yamt 829 1.2.2.2 yamt case IEEE80211_S_AUTH: 830 1.2.2.2 yamt sc->config.state &= ~htole16(WPI_STATE_ASSOCIATED); 831 1.2.2.2 yamt sc->config.filter &= ~htole32(WPI_FILTER_BSS); 832 1.2.2.2 yamt if ((error = wpi_auth(sc)) != 0) { 833 1.2.2.2 yamt aprint_error("%s: could not send authentication request\n", 834 1.2.2.2 yamt sc->sc_dev.dv_xname); 835 1.2.2.2 yamt return error; 836 1.2.2.2 yamt } 837 1.2.2.2 yamt break; 838 1.2.2.2 yamt 839 1.2.2.2 yamt case IEEE80211_S_RUN: 840 1.2.2.2 yamt if (ic->ic_opmode == IEEE80211_M_MONITOR) { 841 1.2.2.2 yamt /* link LED blinks while monitoring */ 842 1.2.2.2 yamt wpi_set_led(sc, WPI_LED_LINK, 5, 5); 843 1.2.2.2 yamt break; 844 1.2.2.2 yamt } 845 1.2.2.2 yamt 846 1.2.2.2 yamt if (ic->ic_opmode != IEEE80211_M_STA) { 847 1.2.2.2 yamt (void) wpi_auth(sc); /* XXX */ 848 1.2.2.2 yamt wpi_setup_beacon(sc, ic->ic_bss); 849 1.2.2.2 yamt } 850 1.2.2.2 yamt 851 1.2.2.2 yamt wpi_enable_tsf(sc, ic->ic_bss); 852 1.2.2.2 yamt 853 1.2.2.2 yamt /* update adapter's configuration */ 854 1.2.2.2 yamt sc->config.state = htole16(WPI_STATE_ASSOCIATED); 855 1.2.2.2 yamt /* short preamble/slot time are negotiated when associating */ 856 1.2.2.2 yamt sc->config.flags &= ~htole32(WPI_CONFIG_SHPREAMBLE | 857 1.2.2.2 yamt WPI_CONFIG_SHSLOT); 858 1.2.2.2 yamt if (ic->ic_flags & IEEE80211_F_SHSLOT) 859 1.2.2.2 yamt sc->config.flags |= htole32(WPI_CONFIG_SHSLOT); 860 1.2.2.2 yamt if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 861 1.2.2.2 yamt sc->config.flags |= htole32(WPI_CONFIG_SHPREAMBLE); 862 1.2.2.2 yamt sc->config.filter |= htole32(WPI_FILTER_BSS); 863 1.2.2.2 yamt if (ic->ic_opmode != IEEE80211_M_STA) 864 1.2.2.2 yamt sc->config.filter |= htole32(WPI_FILTER_BEACON); 865 1.2.2.2 yamt 866 1.2.2.2 yamt /* XXX put somewhere HC_QOS_SUPPORT_ASSOC + HC_IBSS_START */ 867 1.2.2.2 yamt 868 1.2.2.2 yamt DPRINTF(("config chan %d flags %x\n", sc->config.chan, 869 1.2.2.2 yamt sc->config.flags)); 870 1.2.2.2 yamt error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, 871 1.2.2.2 yamt sizeof (struct wpi_config), 1); 872 1.2.2.2 yamt if (error != 0) { 873 1.2.2.2 yamt aprint_error("%s: could not update configuration\n", 874 1.2.2.2 yamt sc->sc_dev.dv_xname); 875 1.2.2.2 yamt return error; 876 1.2.2.2 yamt } 877 1.2.2.2 yamt 878 1.2.2.2 yamt /* enable automatic rate adaptation in STA mode */ 879 1.2.2.2 yamt if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) 880 1.2.2.2 yamt callout_reset(&sc->amrr_ch, hz, wpi_amrr_timeout, sc); 881 1.2.2.2 yamt 882 1.2.2.2 yamt /* link LED always on while associated */ 883 1.2.2.2 yamt wpi_set_led(sc, WPI_LED_LINK, 0, 1); 884 1.2.2.2 yamt break; 885 1.2.2.2 yamt 886 1.2.2.2 yamt case IEEE80211_S_ASSOC: 887 1.2.2.2 yamt case IEEE80211_S_INIT: 888 1.2.2.2 yamt break; 889 1.2.2.2 yamt } 890 1.2.2.2 yamt 891 1.2.2.2 yamt return sc->sc_newstate(ic, nstate, arg); 892 1.2.2.2 yamt } 893 1.2.2.2 yamt 894 1.2.2.2 yamt /* 895 1.2.2.2 yamt * Grab exclusive access to NIC memory. 896 1.2.2.2 yamt */ 897 1.2.2.2 yamt static void 898 1.2.2.2 yamt wpi_mem_lock(struct wpi_softc *sc) 899 1.2.2.2 yamt { 900 1.2.2.2 yamt uint32_t tmp; 901 1.2.2.2 yamt int ntries; 902 1.2.2.2 yamt 903 1.2.2.2 yamt tmp = WPI_READ(sc, WPI_GPIO_CTL); 904 1.2.2.2 yamt WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_MAC); 905 1.2.2.2 yamt 906 1.2.2.2 yamt /* spin until we actually get the lock */ 907 1.2.2.2 yamt for (ntries = 0; ntries < 1000; ntries++) { 908 1.2.2.2 yamt if ((WPI_READ(sc, WPI_GPIO_CTL) & 909 1.2.2.2 yamt (WPI_GPIO_CLOCK | WPI_GPIO_SLEEP)) == WPI_GPIO_CLOCK) 910 1.2.2.2 yamt break; 911 1.2.2.2 yamt DELAY(10); 912 1.2.2.2 yamt } 913 1.2.2.2 yamt if (ntries == 1000) 914 1.2.2.2 yamt aprint_error("%s: could not lock memory\n", sc->sc_dev.dv_xname); 915 1.2.2.2 yamt } 916 1.2.2.2 yamt 917 1.2.2.2 yamt /* 918 1.2.2.2 yamt * Release lock on NIC memory. 919 1.2.2.2 yamt */ 920 1.2.2.2 yamt static void 921 1.2.2.2 yamt wpi_mem_unlock(struct wpi_softc *sc) 922 1.2.2.2 yamt { 923 1.2.2.2 yamt uint32_t tmp = WPI_READ(sc, WPI_GPIO_CTL); 924 1.2.2.2 yamt WPI_WRITE(sc, WPI_GPIO_CTL, tmp & ~WPI_GPIO_MAC); 925 1.2.2.2 yamt } 926 1.2.2.2 yamt 927 1.2.2.2 yamt static uint32_t 928 1.2.2.2 yamt wpi_mem_read(struct wpi_softc *sc, uint16_t addr) 929 1.2.2.2 yamt { 930 1.2.2.2 yamt WPI_WRITE(sc, WPI_READ_MEM_ADDR, WPI_MEM_4 | addr); 931 1.2.2.2 yamt return WPI_READ(sc, WPI_READ_MEM_DATA); 932 1.2.2.2 yamt } 933 1.2.2.2 yamt 934 1.2.2.2 yamt static void 935 1.2.2.2 yamt wpi_mem_write(struct wpi_softc *sc, uint16_t addr, uint32_t data) 936 1.2.2.2 yamt { 937 1.2.2.2 yamt WPI_WRITE(sc, WPI_WRITE_MEM_ADDR, WPI_MEM_4 | addr); 938 1.2.2.2 yamt WPI_WRITE(sc, WPI_WRITE_MEM_DATA, data); 939 1.2.2.2 yamt } 940 1.2.2.2 yamt 941 1.2.2.2 yamt static void 942 1.2.2.2 yamt wpi_mem_write_region_4(struct wpi_softc *sc, uint16_t addr, 943 1.2.2.2 yamt const uint32_t *data, int wlen) 944 1.2.2.2 yamt { 945 1.2.2.2 yamt for (; wlen > 0; wlen--, data++, addr += 4) 946 1.2.2.2 yamt wpi_mem_write(sc, addr, *data); 947 1.2.2.2 yamt } 948 1.2.2.2 yamt 949 1.2.2.2 yamt /* 950 1.2.2.2 yamt * Read 16 bits from the EEPROM. We access EEPROM through the MAC instead of 951 1.2.2.2 yamt * using the traditional bit-bang method. 952 1.2.2.2 yamt */ 953 1.2.2.2 yamt static uint16_t 954 1.2.2.2 yamt wpi_read_prom_word(struct wpi_softc *sc, uint32_t addr) 955 1.2.2.2 yamt { 956 1.2.2.2 yamt int ntries; 957 1.2.2.2 yamt uint32_t val; 958 1.2.2.2 yamt 959 1.2.2.2 yamt WPI_WRITE(sc, WPI_EEPROM_CTL, addr << 2); 960 1.2.2.2 yamt 961 1.2.2.2 yamt wpi_mem_lock(sc); 962 1.2.2.2 yamt for (ntries = 0; ntries < 10; ntries++) { 963 1.2.2.2 yamt if ((val = WPI_READ(sc, WPI_EEPROM_CTL)) & WPI_EEPROM_READY) 964 1.2.2.2 yamt break; 965 1.2.2.2 yamt DELAY(10); 966 1.2.2.2 yamt } 967 1.2.2.2 yamt wpi_mem_unlock(sc); 968 1.2.2.2 yamt 969 1.2.2.2 yamt if (ntries == 10) { 970 1.2.2.2 yamt aprint_error("%s: could not read EEPROM\n", sc->sc_dev.dv_xname); 971 1.2.2.2 yamt return 0xdead; 972 1.2.2.2 yamt } 973 1.2.2.2 yamt return val >> 16; 974 1.2.2.2 yamt } 975 1.2.2.2 yamt 976 1.2.2.2 yamt /* 977 1.2.2.2 yamt * The firmware boot code is small and is intended to be copied directly into 978 1.2.2.2 yamt * the NIC internal memory. 979 1.2.2.2 yamt */ 980 1.2.2.2 yamt static int 981 1.2.2.2 yamt wpi_load_microcode(struct wpi_softc *sc, const char *ucode, int size) 982 1.2.2.2 yamt { 983 1.2.2.2 yamt /* check that microcode size is a multiple of 4 */ 984 1.2.2.2 yamt if (size & 3) 985 1.2.2.2 yamt return EINVAL; 986 1.2.2.2 yamt 987 1.2.2.2 yamt size /= sizeof (uint32_t); 988 1.2.2.2 yamt 989 1.2.2.2 yamt wpi_mem_lock(sc); 990 1.2.2.2 yamt 991 1.2.2.2 yamt /* copy microcode image into NIC memory */ 992 1.2.2.2 yamt wpi_mem_write_region_4(sc, WPI_MEM_UCODE_BASE, (const uint32_t *)ucode, 993 1.2.2.2 yamt size); 994 1.2.2.2 yamt 995 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_UCODE_SRC, 0); 996 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_UCODE_DST, WPI_FW_TEXT); 997 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_UCODE_SIZE, size); 998 1.2.2.2 yamt 999 1.2.2.2 yamt /* run microcode */ 1000 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_UCODE_CTL, WPI_UC_RUN); 1001 1.2.2.2 yamt 1002 1.2.2.2 yamt wpi_mem_unlock(sc); 1003 1.2.2.2 yamt 1004 1.2.2.2 yamt return 0; 1005 1.2.2.2 yamt } 1006 1.2.2.2 yamt 1007 1.2.2.2 yamt /* 1008 1.2.2.2 yamt * The firmware text and data segments are transferred to the NIC using DMA. 1009 1.2.2.2 yamt * The driver just copies the firmware into DMA-safe memory and tells the NIC 1010 1.2.2.2 yamt * where to find it. Once the NIC has copied the firmware into its internal 1011 1.2.2.2 yamt * memory, we can free our local copy in the driver. 1012 1.2.2.2 yamt */ 1013 1.2.2.2 yamt static int 1014 1.2.2.2 yamt wpi_load_firmware(struct wpi_softc *sc, uint32_t target, const char *fw, 1015 1.2.2.2 yamt int size) 1016 1.2.2.2 yamt { 1017 1.2.2.2 yamt bus_dmamap_t map; 1018 1.2.2.2 yamt bus_dma_segment_t seg; 1019 1.2.2.2 yamt caddr_t virtaddr; 1020 1.2.2.2 yamt struct wpi_tx_desc desc; 1021 1.2.2.2 yamt int i, ntries, nsegs, error; 1022 1.2.2.2 yamt 1023 1.2.2.2 yamt /* 1024 1.2.2.2 yamt * Allocate DMA-safe memory to store the firmware. 1025 1.2.2.2 yamt */ 1026 1.2.2.2 yamt error = bus_dmamap_create(sc->sc_dmat, size, WPI_MAX_SCATTER, 1027 1.2.2.2 yamt WPI_MAX_SEG_LEN, 0, BUS_DMA_NOWAIT, &map); 1028 1.2.2.2 yamt if (error != 0) { 1029 1.2.2.2 yamt aprint_error("%s: could not create firmware DMA map\n", 1030 1.2.2.2 yamt sc->sc_dev.dv_xname); 1031 1.2.2.2 yamt goto fail1; 1032 1.2.2.2 yamt } 1033 1.2.2.2 yamt 1034 1.2.2.2 yamt error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &seg, 1, 1035 1.2.2.2 yamt &nsegs, BUS_DMA_NOWAIT); 1036 1.2.2.2 yamt if (error != 0) { 1037 1.2.2.2 yamt aprint_error("%s: could not allocate firmware DMA memory\n", 1038 1.2.2.2 yamt sc->sc_dev.dv_xname); 1039 1.2.2.2 yamt goto fail2; 1040 1.2.2.2 yamt } 1041 1.2.2.2 yamt 1042 1.2.2.2 yamt error = bus_dmamem_map(sc->sc_dmat, &seg, nsegs, size, &virtaddr, 1043 1.2.2.2 yamt BUS_DMA_NOWAIT); 1044 1.2.2.2 yamt if (error != 0) { 1045 1.2.2.2 yamt aprint_error("%s: could not map firmware DMA memory\n", 1046 1.2.2.2 yamt sc->sc_dev.dv_xname); 1047 1.2.2.2 yamt goto fail3; 1048 1.2.2.2 yamt } 1049 1.2.2.2 yamt 1050 1.2.2.2 yamt error = bus_dmamap_load(sc->sc_dmat, map, virtaddr, size, NULL, 1051 1.2.2.2 yamt BUS_DMA_NOWAIT | BUS_DMA_WRITE); 1052 1.2.2.2 yamt if (error != 0) { 1053 1.2.2.2 yamt aprint_error("%s: could not load firmware DMA map\n", 1054 1.2.2.2 yamt sc->sc_dev.dv_xname); 1055 1.2.2.2 yamt goto fail4; 1056 1.2.2.2 yamt } 1057 1.2.2.2 yamt 1058 1.2.2.2 yamt /* copy firmware image to DMA-safe memory */ 1059 1.2.2.2 yamt bcopy(fw, virtaddr, size); 1060 1.2.2.2 yamt 1061 1.2.2.2 yamt /* make sure the adapter will get up-to-date values */ 1062 1.2.2.2 yamt bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_PREWRITE); 1063 1.2.2.2 yamt 1064 1.2.2.2 yamt bzero(&desc, sizeof desc); 1065 1.2.2.2 yamt desc.flags = htole32(WPI_PAD32(size) << 28 | map->dm_nsegs << 24); 1066 1.2.2.2 yamt for (i = 0; i < map->dm_nsegs; i++) { 1067 1.2.2.2 yamt desc.segs[i].addr = htole32(map->dm_segs[i].ds_addr); 1068 1.2.2.2 yamt desc.segs[i].len = htole32(map->dm_segs[i].ds_len); 1069 1.2.2.2 yamt } 1070 1.2.2.2 yamt 1071 1.2.2.2 yamt wpi_mem_lock(sc); 1072 1.2.2.2 yamt 1073 1.2.2.2 yamt /* tell adapter where to copy image in its internal memory */ 1074 1.2.2.2 yamt WPI_WRITE(sc, WPI_FW_TARGET, target); 1075 1.2.2.2 yamt 1076 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_CONFIG(6), 0); 1077 1.2.2.2 yamt 1078 1.2.2.2 yamt /* copy firmware descriptor into NIC memory */ 1079 1.2.2.2 yamt WPI_WRITE_REGION_4(sc, WPI_TX_DESC(6), (uint32_t *)&desc, 1080 1.2.2.2 yamt sizeof desc / sizeof (uint32_t)); 1081 1.2.2.2 yamt 1082 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_CREDIT(6), 0xfffff); 1083 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_STATE(6), 0x4001); 1084 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_CONFIG(6), 0x80000001); 1085 1.2.2.2 yamt 1086 1.2.2.2 yamt /* wait while the adapter is busy copying the firmware */ 1087 1.2.2.2 yamt for (ntries = 0; ntries < 100; ntries++) { 1088 1.2.2.2 yamt if (WPI_READ(sc, WPI_TX_STATUS) & WPI_TX_IDLE(6)) 1089 1.2.2.2 yamt break; 1090 1.2.2.2 yamt DELAY(1000); 1091 1.2.2.2 yamt } 1092 1.2.2.2 yamt if (ntries == 100) { 1093 1.2.2.2 yamt aprint_error("%s: timeout transferring firmware\n", 1094 1.2.2.2 yamt sc->sc_dev.dv_xname); 1095 1.2.2.2 yamt error = ETIMEDOUT; 1096 1.2.2.2 yamt } 1097 1.2.2.2 yamt 1098 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_CREDIT(6), 0); 1099 1.2.2.2 yamt 1100 1.2.2.2 yamt wpi_mem_unlock(sc); 1101 1.2.2.2 yamt 1102 1.2.2.2 yamt bus_dmamap_sync(sc->sc_dmat, map, 0, size, BUS_DMASYNC_POSTWRITE); 1103 1.2.2.2 yamt bus_dmamap_unload(sc->sc_dmat, map); 1104 1.2.2.2 yamt fail4: bus_dmamem_unmap(sc->sc_dmat, virtaddr, size); 1105 1.2.2.2 yamt fail3: bus_dmamem_free(sc->sc_dmat, &seg, 1); 1106 1.2.2.2 yamt fail2: bus_dmamap_destroy(sc->sc_dmat, map); 1107 1.2.2.2 yamt fail1: return error; 1108 1.2.2.2 yamt } 1109 1.2.2.2 yamt 1110 1.2.2.2 yamt static void 1111 1.2.2.2 yamt wpi_rx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc, 1112 1.2.2.2 yamt struct wpi_rx_data *data) 1113 1.2.2.2 yamt { 1114 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 1115 1.2.2.2 yamt struct ifnet *ifp = ic->ic_ifp; 1116 1.2.2.2 yamt struct wpi_rx_ring *ring = &sc->rxq; 1117 1.2.2.2 yamt struct wpi_rx_stat *stat; 1118 1.2.2.2 yamt struct wpi_rx_head *head; 1119 1.2.2.2 yamt struct wpi_rx_tail *tail; 1120 1.2.2.2 yamt struct ieee80211_frame *wh; 1121 1.2.2.2 yamt struct ieee80211_node *ni; 1122 1.2.2.2 yamt struct mbuf *m, *mnew; 1123 1.2.2.2 yamt int error; 1124 1.2.2.2 yamt 1125 1.2.2.2 yamt stat = (struct wpi_rx_stat *)(desc + 1); 1126 1.2.2.2 yamt 1127 1.2.2.2 yamt if (stat->len > WPI_STAT_MAXLEN) { 1128 1.2.2.2 yamt aprint_error("%s: invalid rx statistic header\n", 1129 1.2.2.2 yamt sc->sc_dev.dv_xname); 1130 1.2.2.2 yamt ifp->if_ierrors++; 1131 1.2.2.2 yamt return; 1132 1.2.2.2 yamt } 1133 1.2.2.2 yamt 1134 1.2.2.2 yamt head = (struct wpi_rx_head *)((caddr_t)(stat + 1) + stat->len); 1135 1.2.2.2 yamt tail = (struct wpi_rx_tail *)((caddr_t)(head + 1) + le16toh(head->len)); 1136 1.2.2.2 yamt 1137 1.2.2.2 yamt DPRINTFN(4, ("rx intr: idx=%d len=%d stat len=%d rssi=%d rate=%x " 1138 1.2.2.2 yamt "chan=%d tstamp=%llu\n", ring->cur, le32toh(desc->len), 1139 1.2.2.2 yamt le16toh(head->len), (int8_t)stat->rssi, head->rate, head->chan, 1140 1.2.2.2 yamt le64toh(tail->tstamp))); 1141 1.2.2.2 yamt 1142 1.2.2.2 yamt /* 1143 1.2.2.2 yamt * Discard Rx frames with bad CRC early (XXX we may want to pass them 1144 1.2.2.2 yamt * to radiotap in monitor mode). 1145 1.2.2.2 yamt */ 1146 1.2.2.2 yamt if ((le32toh(tail->flags) & WPI_RX_NOERROR) != WPI_RX_NOERROR) { 1147 1.2.2.2 yamt DPRINTF(("rx tail flags error %x\n", le32toh(tail->flags))); 1148 1.2.2.2 yamt ifp->if_ierrors++; 1149 1.2.2.2 yamt return; 1150 1.2.2.2 yamt } 1151 1.2.2.2 yamt 1152 1.2.2.2 yamt 1153 1.2.2.2 yamt MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1154 1.2.2.2 yamt if (mnew == NULL) { 1155 1.2.2.2 yamt ifp->if_ierrors++; 1156 1.2.2.2 yamt return; 1157 1.2.2.2 yamt } 1158 1.2.2.2 yamt 1159 1.2.2.2 yamt MCLGET(mnew, M_DONTWAIT); 1160 1.2.2.2 yamt if (!(mnew->m_flags & M_EXT)) { 1161 1.2.2.2 yamt m_freem(mnew); 1162 1.2.2.2 yamt ifp->if_ierrors++; 1163 1.2.2.2 yamt return; 1164 1.2.2.2 yamt } 1165 1.2.2.2 yamt 1166 1.2.2.2 yamt bus_dmamap_unload(sc->sc_dmat, data->map); 1167 1.2.2.2 yamt 1168 1.2.2.2 yamt error = bus_dmamap_load(sc->sc_dmat, data->map, mtod(mnew, void *), 1169 1.2.2.2 yamt MCLBYTES, NULL, BUS_DMA_NOWAIT); 1170 1.2.2.2 yamt if (error != 0) { 1171 1.2.2.2 yamt m_freem(mnew); 1172 1.2.2.2 yamt 1173 1.2.2.2 yamt /* try to reload the old mbuf */ 1174 1.2.2.2 yamt error = bus_dmamap_load(sc->sc_dmat, data->map, 1175 1.2.2.2 yamt mtod(data->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT); 1176 1.2.2.2 yamt if (error != 0) { 1177 1.2.2.2 yamt /* very unlikely that it will fail... */ 1178 1.2.2.2 yamt panic("%s: could not load old rx mbuf", 1179 1.2.2.2 yamt sc->sc_dev.dv_xname); 1180 1.2.2.2 yamt } 1181 1.2.2.2 yamt ifp->if_ierrors++; 1182 1.2.2.2 yamt return; 1183 1.2.2.2 yamt } 1184 1.2.2.2 yamt 1185 1.2.2.2 yamt m = data->m; 1186 1.2.2.2 yamt data->m = mnew; 1187 1.2.2.2 yamt 1188 1.2.2.2 yamt /* update Rx descriptor */ 1189 1.2.2.2 yamt ring->desc[ring->cur] = htole32(data->map->dm_segs[0].ds_addr); 1190 1.2.2.2 yamt 1191 1.2.2.2 yamt /* finalize mbuf */ 1192 1.2.2.2 yamt m->m_pkthdr.rcvif = ifp; 1193 1.2.2.2 yamt m->m_data = (caddr_t)(head + 1); 1194 1.2.2.2 yamt m->m_pkthdr.len = m->m_len = le16toh(head->len); 1195 1.2.2.2 yamt 1196 1.2.2.2 yamt #if NBPFILTER > 0 1197 1.2.2.2 yamt if (sc->sc_drvbpf != NULL) { 1198 1.2.2.2 yamt struct wpi_rx_radiotap_header *tap = &sc->sc_rxtap; 1199 1.2.2.2 yamt 1200 1.2.2.2 yamt tap->wr_flags = 0; 1201 1.2.2.2 yamt tap->wr_chan_freq = 1202 1.2.2.2 yamt htole16(ic->ic_channels[head->chan].ic_freq); 1203 1.2.2.2 yamt tap->wr_chan_flags = 1204 1.2.2.2 yamt htole16(ic->ic_channels[head->chan].ic_flags); 1205 1.2.2.2 yamt tap->wr_dbm_antsignal = (int8_t)(stat->rssi - WPI_RSSI_OFFSET); 1206 1.2.2.2 yamt tap->wr_dbm_antnoise = (int8_t)le16toh(stat->noise); 1207 1.2.2.2 yamt tap->wr_tsft = tail->tstamp; 1208 1.2.2.2 yamt tap->wr_antenna = (le16toh(head->flags) >> 4) & 0xf; 1209 1.2.2.2 yamt switch (head->rate) { 1210 1.2.2.2 yamt /* CCK rates */ 1211 1.2.2.2 yamt case 10: tap->wr_rate = 2; break; 1212 1.2.2.2 yamt case 20: tap->wr_rate = 4; break; 1213 1.2.2.2 yamt case 55: tap->wr_rate = 11; break; 1214 1.2.2.2 yamt case 110: tap->wr_rate = 22; break; 1215 1.2.2.2 yamt /* OFDM rates */ 1216 1.2.2.2 yamt case 0xd: tap->wr_rate = 12; break; 1217 1.2.2.2 yamt case 0xf: tap->wr_rate = 18; break; 1218 1.2.2.2 yamt case 0x5: tap->wr_rate = 24; break; 1219 1.2.2.2 yamt case 0x7: tap->wr_rate = 36; break; 1220 1.2.2.2 yamt case 0x9: tap->wr_rate = 48; break; 1221 1.2.2.2 yamt case 0xb: tap->wr_rate = 72; break; 1222 1.2.2.2 yamt case 0x1: tap->wr_rate = 96; break; 1223 1.2.2.2 yamt case 0x3: tap->wr_rate = 108; break; 1224 1.2.2.2 yamt /* unknown rate: should not happen */ 1225 1.2.2.2 yamt default: tap->wr_rate = 0; 1226 1.2.2.2 yamt } 1227 1.2.2.2 yamt if (le16toh(head->flags) & 0x4) 1228 1.2.2.2 yamt tap->wr_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; 1229 1.2.2.2 yamt 1230 1.2.2.2 yamt bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1231 1.2.2.2 yamt } 1232 1.2.2.2 yamt #endif 1233 1.2.2.2 yamt 1234 1.2.2.2 yamt /* grab a reference to the source node */ 1235 1.2.2.2 yamt wh = mtod(m, struct ieee80211_frame *); 1236 1.2.2.2 yamt ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1237 1.2.2.2 yamt 1238 1.2.2.2 yamt /* send the frame to the 802.11 layer */ 1239 1.2.2.2 yamt ieee80211_input(ic, m, ni, stat->rssi, 0); 1240 1.2.2.2 yamt 1241 1.2.2.2 yamt /* release node reference */ 1242 1.2.2.2 yamt ieee80211_free_node(ni); 1243 1.2.2.2 yamt } 1244 1.2.2.2 yamt 1245 1.2.2.2 yamt static void 1246 1.2.2.2 yamt wpi_tx_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc) 1247 1.2.2.2 yamt { 1248 1.2.2.2 yamt struct ifnet *ifp = sc->sc_ic.ic_ifp; 1249 1.2.2.2 yamt struct wpi_tx_ring *ring = &sc->txq[desc->qid & 0x3]; 1250 1.2.2.2 yamt struct wpi_tx_data *txdata = &ring->data[desc->idx]; 1251 1.2.2.2 yamt struct wpi_tx_stat *stat = (struct wpi_tx_stat *)(desc + 1); 1252 1.2.2.2 yamt struct wpi_amrr *amrr = (struct wpi_amrr *)txdata->ni; 1253 1.2.2.2 yamt 1254 1.2.2.2 yamt DPRINTFN(4, ("tx done: qid=%d idx=%d retries=%d nkill=%d rate=%x " 1255 1.2.2.2 yamt "duration=%d status=%x\n", desc->qid, desc->idx, stat->ntries, 1256 1.2.2.2 yamt stat->nkill, stat->rate, le32toh(stat->duration), 1257 1.2.2.2 yamt le32toh(stat->status))); 1258 1.2.2.2 yamt 1259 1.2.2.2 yamt /* 1260 1.2.2.2 yamt * Update rate control statistics for the node. 1261 1.2.2.2 yamt * XXX we should not count mgmt frames since they're always sent at 1262 1.2.2.2 yamt * the lowest available bit-rate. 1263 1.2.2.2 yamt */ 1264 1.2.2.2 yamt amrr->txcnt++; 1265 1.2.2.2 yamt if (stat->ntries > 0) { 1266 1.2.2.2 yamt DPRINTFN(3, ("tx intr ntries %d\n", stat->ntries)); 1267 1.2.2.2 yamt amrr->retrycnt++; 1268 1.2.2.2 yamt } 1269 1.2.2.2 yamt 1270 1.2.2.2 yamt if ((le32toh(stat->status) & 0xff) != 1) 1271 1.2.2.2 yamt ifp->if_oerrors++; 1272 1.2.2.2 yamt else 1273 1.2.2.2 yamt ifp->if_opackets++; 1274 1.2.2.2 yamt 1275 1.2.2.2 yamt bus_dmamap_unload(sc->sc_dmat, txdata->map); 1276 1.2.2.2 yamt m_freem(txdata->m); 1277 1.2.2.2 yamt txdata->m = NULL; 1278 1.2.2.2 yamt ieee80211_free_node(txdata->ni); 1279 1.2.2.2 yamt txdata->ni = NULL; 1280 1.2.2.2 yamt 1281 1.2.2.2 yamt ring->queued--; 1282 1.2.2.2 yamt 1283 1.2.2.2 yamt sc->sc_tx_timer = 0; 1284 1.2.2.2 yamt ifp->if_flags &= ~IFF_OACTIVE; 1285 1.2.2.2 yamt wpi_start(ifp); 1286 1.2.2.2 yamt } 1287 1.2.2.2 yamt 1288 1.2.2.2 yamt static void 1289 1.2.2.2 yamt wpi_cmd_intr(struct wpi_softc *sc, struct wpi_rx_desc *desc) 1290 1.2.2.2 yamt { 1291 1.2.2.2 yamt struct wpi_tx_ring *ring = &sc->cmdq; 1292 1.2.2.2 yamt struct wpi_tx_data *data; 1293 1.2.2.2 yamt 1294 1.2.2.2 yamt if ((desc->qid & 7) != 4) 1295 1.2.2.2 yamt return; /* not a command ack */ 1296 1.2.2.2 yamt 1297 1.2.2.2 yamt data = &ring->data[desc->idx]; 1298 1.2.2.2 yamt 1299 1.2.2.2 yamt /* if the command was mapped in a mbuf, free it */ 1300 1.2.2.2 yamt if (data->m != NULL) { 1301 1.2.2.2 yamt bus_dmamap_unload(sc->sc_dmat, data->map); 1302 1.2.2.2 yamt m_freem(data->m); 1303 1.2.2.2 yamt data->m = NULL; 1304 1.2.2.2 yamt } 1305 1.2.2.2 yamt 1306 1.2.2.2 yamt wakeup(&ring->cmd[desc->idx]); 1307 1.2.2.2 yamt } 1308 1.2.2.2 yamt 1309 1.2.2.2 yamt static void 1310 1.2.2.2 yamt wpi_notif_intr(struct wpi_softc *sc) 1311 1.2.2.2 yamt { 1312 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 1313 1.2.2.2 yamt struct wpi_rx_desc *desc; 1314 1.2.2.2 yamt struct wpi_rx_data *data; 1315 1.2.2.2 yamt uint32_t hw; 1316 1.2.2.2 yamt 1317 1.2.2.2 yamt hw = le32toh(sc->shared->next); 1318 1.2.2.2 yamt while (sc->rxq.cur != hw) { 1319 1.2.2.2 yamt data = &sc->rxq.data[sc->rxq.cur]; 1320 1.2.2.2 yamt 1321 1.2.2.2 yamt desc = mtod(data->m, struct wpi_rx_desc *); 1322 1.2.2.2 yamt 1323 1.2.2.2 yamt DPRINTFN(4, ("rx notification qid=%x idx=%d flags=%x type=%d " 1324 1.2.2.2 yamt "len=%d\n", desc->qid, desc->idx, desc->flags, 1325 1.2.2.2 yamt desc->type, le32toh(desc->len))); 1326 1.2.2.2 yamt 1327 1.2.2.2 yamt if (!(desc->qid & 0x80)) /* reply to a command */ 1328 1.2.2.2 yamt wpi_cmd_intr(sc, desc); 1329 1.2.2.2 yamt 1330 1.2.2.2 yamt switch (desc->type) { 1331 1.2.2.2 yamt case WPI_RX_DONE: 1332 1.2.2.2 yamt /* a 802.11 frame was received */ 1333 1.2.2.2 yamt wpi_rx_intr(sc, desc, data); 1334 1.2.2.2 yamt break; 1335 1.2.2.2 yamt 1336 1.2.2.2 yamt case WPI_TX_DONE: 1337 1.2.2.2 yamt /* a 802.11 frame has been transmitted */ 1338 1.2.2.2 yamt wpi_tx_intr(sc, desc); 1339 1.2.2.2 yamt break; 1340 1.2.2.2 yamt 1341 1.2.2.2 yamt case WPI_UC_READY: 1342 1.2.2.2 yamt { 1343 1.2.2.2 yamt struct wpi_ucode_info *uc = 1344 1.2.2.2 yamt (struct wpi_ucode_info *)(desc + 1); 1345 1.2.2.2 yamt 1346 1.2.2.2 yamt /* the microcontroller is ready */ 1347 1.2.2.2 yamt DPRINTF(("microcode alive notification version %x " 1348 1.2.2.2 yamt "alive %x\n", le32toh(uc->version), 1349 1.2.2.2 yamt le32toh(uc->valid))); 1350 1.2.2.2 yamt 1351 1.2.2.2 yamt if (le32toh(uc->valid) != 1) { 1352 1.2.2.2 yamt aprint_error("%s: microcontroller " 1353 1.2.2.2 yamt "initialization failed\n", 1354 1.2.2.2 yamt sc->sc_dev.dv_xname); 1355 1.2.2.2 yamt } 1356 1.2.2.2 yamt break; 1357 1.2.2.2 yamt } 1358 1.2.2.2 yamt case WPI_STATE_CHANGED: 1359 1.2.2.2 yamt { 1360 1.2.2.2 yamt uint32_t *status = (uint32_t *)(desc + 1); 1361 1.2.2.2 yamt 1362 1.2.2.2 yamt /* enabled/disabled notification */ 1363 1.2.2.2 yamt DPRINTF(("state changed to %x\n", le32toh(*status))); 1364 1.2.2.2 yamt 1365 1.2.2.2 yamt if (le32toh(*status) & 1) { 1366 1.2.2.2 yamt /* the radio button has to be pushed */ 1367 1.2.2.2 yamt aprint_error("%s: Radio transmitter is off\n", 1368 1.2.2.2 yamt sc->sc_dev.dv_xname); 1369 1.2.2.2 yamt } 1370 1.2.2.2 yamt break; 1371 1.2.2.2 yamt } 1372 1.2.2.2 yamt case WPI_START_SCAN: 1373 1.2.2.2 yamt { 1374 1.2.2.2 yamt struct wpi_start_scan *scan = 1375 1.2.2.2 yamt (struct wpi_start_scan *)(desc + 1); 1376 1.2.2.2 yamt 1377 1.2.2.2 yamt DPRINTFN(2, ("scanning channel %d status %x\n", 1378 1.2.2.2 yamt scan->chan, le32toh(scan->status))); 1379 1.2.2.2 yamt 1380 1.2.2.2 yamt /* fix current channel */ 1381 1.2.2.2 yamt ic->ic_bss->ni_chan = &ic->ic_channels[scan->chan]; 1382 1.2.2.2 yamt break; 1383 1.2.2.2 yamt } 1384 1.2.2.2 yamt case WPI_STOP_SCAN: 1385 1.2.2.2 yamt { 1386 1.2.2.2 yamt struct wpi_stop_scan *scan = 1387 1.2.2.2 yamt (struct wpi_stop_scan *)(desc + 1); 1388 1.2.2.2 yamt 1389 1.2.2.2 yamt DPRINTF(("scan finished nchan=%d status=%d chan=%d\n", 1390 1.2.2.2 yamt scan->nchan, scan->status, scan->chan)); 1391 1.2.2.2 yamt 1392 1.2.2.2 yamt if (scan->status == 1 && scan->chan <= 14) { 1393 1.2.2.2 yamt /* 1394 1.2.2.2 yamt * We just finished scanning 802.11g channels, 1395 1.2.2.2 yamt * start scanning 802.11a ones. 1396 1.2.2.2 yamt */ 1397 1.2.2.2 yamt if (wpi_scan(sc, IEEE80211_CHAN_A) == 0) 1398 1.2.2.2 yamt break; 1399 1.2.2.2 yamt } 1400 1.2.2.2 yamt ieee80211_end_scan(ic); 1401 1.2.2.2 yamt break; 1402 1.2.2.2 yamt } 1403 1.2.2.2 yamt } 1404 1.2.2.2 yamt 1405 1.2.2.2 yamt sc->rxq.cur = (sc->rxq.cur + 1) % WPI_RX_RING_COUNT; 1406 1.2.2.2 yamt } 1407 1.2.2.2 yamt 1408 1.2.2.2 yamt /* tell the firmware what we have processed */ 1409 1.2.2.2 yamt hw = (hw == 0) ? WPI_RX_RING_COUNT - 1 : hw - 1; 1410 1.2.2.2 yamt WPI_WRITE(sc, WPI_RX_WIDX, hw & ~7); 1411 1.2.2.2 yamt } 1412 1.2.2.2 yamt 1413 1.2.2.2 yamt static int 1414 1.2.2.2 yamt wpi_intr(void *arg) 1415 1.2.2.2 yamt { 1416 1.2.2.2 yamt struct wpi_softc *sc = arg; 1417 1.2.2.2 yamt uint32_t r; 1418 1.2.2.2 yamt 1419 1.2.2.2 yamt r = WPI_READ(sc, WPI_INTR); 1420 1.2.2.2 yamt if (r == 0 || r == 0xffffffff) 1421 1.2.2.2 yamt return 0; /* not for us */ 1422 1.2.2.2 yamt 1423 1.2.2.2 yamt DPRINTFN(5, ("interrupt reg %x\n", r)); 1424 1.2.2.2 yamt 1425 1.2.2.2 yamt /* disable interrupts */ 1426 1.2.2.2 yamt WPI_WRITE(sc, WPI_MASK, 0); 1427 1.2.2.2 yamt /* ack interrupts */ 1428 1.2.2.2 yamt WPI_WRITE(sc, WPI_INTR, r); 1429 1.2.2.2 yamt 1430 1.2.2.2 yamt if (r & (WPI_SW_ERROR | WPI_HW_ERROR)) { 1431 1.2.2.2 yamt /* SYSTEM FAILURE, SYSTEM FAILURE */ 1432 1.2.2.2 yamt aprint_error("%s: fatal firmware error\n", sc->sc_dev.dv_xname); 1433 1.2.2.2 yamt sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1434 1.2.2.2 yamt wpi_stop(&sc->sc_ec.ec_if, 1); 1435 1.2.2.2 yamt return 1; 1436 1.2.2.2 yamt } 1437 1.2.2.2 yamt 1438 1.2.2.2 yamt if (r & WPI_RX_INTR) 1439 1.2.2.2 yamt wpi_notif_intr(sc); 1440 1.2.2.2 yamt 1441 1.2.2.2 yamt if (r & WPI_ALIVE_INTR) /* firmware initialized */ 1442 1.2.2.2 yamt wakeup(sc); 1443 1.2.2.2 yamt 1444 1.2.2.2 yamt /* re-enable interrupts */ 1445 1.2.2.2 yamt WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK); 1446 1.2.2.2 yamt 1447 1.2.2.2 yamt return 1; 1448 1.2.2.2 yamt } 1449 1.2.2.2 yamt 1450 1.2.2.2 yamt static uint8_t 1451 1.2.2.2 yamt wpi_plcp_signal(int rate) 1452 1.2.2.2 yamt { 1453 1.2.2.2 yamt switch (rate) { 1454 1.2.2.2 yamt /* CCK rates (returned values are device-dependent) */ 1455 1.2.2.2 yamt case 2: return 10; 1456 1.2.2.2 yamt case 4: return 20; 1457 1.2.2.2 yamt case 11: return 55; 1458 1.2.2.2 yamt case 22: return 110; 1459 1.2.2.2 yamt 1460 1.2.2.2 yamt /* OFDM rates (cf IEEE Std 802.11a-1999, pp. 14 Table 80) */ 1461 1.2.2.2 yamt /* R1-R4, (u)ral is R4-R1 */ 1462 1.2.2.2 yamt case 12: return 0xd; 1463 1.2.2.2 yamt case 18: return 0xf; 1464 1.2.2.2 yamt case 24: return 0x5; 1465 1.2.2.2 yamt case 36: return 0x7; 1466 1.2.2.2 yamt case 48: return 0x9; 1467 1.2.2.2 yamt case 72: return 0xb; 1468 1.2.2.2 yamt case 96: return 0x1; 1469 1.2.2.2 yamt case 108: return 0x3; 1470 1.2.2.2 yamt 1471 1.2.2.2 yamt /* unsupported rates (should not get there) */ 1472 1.2.2.2 yamt default: return 0; 1473 1.2.2.2 yamt } 1474 1.2.2.2 yamt } 1475 1.2.2.2 yamt 1476 1.2.2.2 yamt /* quickly determine if a given rate is CCK or OFDM */ 1477 1.2.2.2 yamt #define WPI_RATE_IS_OFDM(rate) ((rate) >= 12 && (rate) != 22) 1478 1.2.2.2 yamt 1479 1.2.2.2 yamt static int 1480 1.2.2.2 yamt wpi_tx_data(struct wpi_softc *sc, struct mbuf *m0, struct ieee80211_node *ni, 1481 1.2.2.2 yamt int ac) 1482 1.2.2.2 yamt { 1483 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 1484 1.2.2.2 yamt struct wpi_tx_ring *ring = &sc->txq[ac]; 1485 1.2.2.2 yamt struct wpi_tx_desc *desc; 1486 1.2.2.2 yamt struct wpi_tx_data *data; 1487 1.2.2.2 yamt struct wpi_tx_cmd *cmd; 1488 1.2.2.2 yamt struct wpi_cmd_data *tx; 1489 1.2.2.2 yamt struct ieee80211_frame *wh; 1490 1.2.2.2 yamt struct ieee80211_key *k; 1491 1.2.2.2 yamt const struct chanAccParams *cap; 1492 1.2.2.2 yamt struct mbuf *mnew; 1493 1.2.2.2 yamt int i, error, rate, hdrlen, noack = 0; 1494 1.2.2.2 yamt 1495 1.2.2.2 yamt desc = &ring->desc[ring->cur]; 1496 1.2.2.2 yamt data = &ring->data[ring->cur]; 1497 1.2.2.2 yamt 1498 1.2.2.2 yamt wh = mtod(m0, struct ieee80211_frame *); 1499 1.2.2.2 yamt 1500 1.2.2.2 yamt if (IEEE80211_QOS_HAS_SEQ(wh)) { 1501 1.2.2.2 yamt hdrlen = sizeof (struct ieee80211_qosframe); 1502 1.2.2.2 yamt cap = &ic->ic_wme.wme_chanParams; 1503 1.2.2.2 yamt noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1504 1.2.2.2 yamt } else 1505 1.2.2.2 yamt hdrlen = sizeof (struct ieee80211_frame); 1506 1.2.2.2 yamt 1507 1.2.2.2 yamt if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1508 1.2.2.2 yamt k = ieee80211_crypto_encap(ic, ni, m0); 1509 1.2.2.2 yamt if (k == NULL) { 1510 1.2.2.2 yamt m_freem(m0); 1511 1.2.2.2 yamt return ENOBUFS; 1512 1.2.2.2 yamt } 1513 1.2.2.2 yamt 1514 1.2.2.2 yamt /* packet header may have moved, reset our local pointer */ 1515 1.2.2.2 yamt wh = mtod(m0, struct ieee80211_frame *); 1516 1.2.2.2 yamt } 1517 1.2.2.2 yamt 1518 1.2.2.2 yamt /* pickup a rate */ 1519 1.2.2.2 yamt if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 1520 1.2.2.2 yamt IEEE80211_FC0_TYPE_MGT) { 1521 1.2.2.2 yamt /* mgmt frames are sent at the lowest available bit-rate */ 1522 1.2.2.2 yamt rate = ni->ni_rates.rs_rates[0]; 1523 1.2.2.2 yamt } else { 1524 1.2.2.2 yamt if (ic->ic_fixed_rate != -1) { 1525 1.2.2.2 yamt rate = ic->ic_sup_rates[ic->ic_curmode]. 1526 1.2.2.2 yamt rs_rates[ic->ic_fixed_rate]; 1527 1.2.2.2 yamt } else 1528 1.2.2.2 yamt rate = ni->ni_rates.rs_rates[ni->ni_txrate]; 1529 1.2.2.2 yamt } 1530 1.2.2.2 yamt rate &= IEEE80211_RATE_VAL; 1531 1.2.2.2 yamt 1532 1.2.2.2 yamt 1533 1.2.2.2 yamt #if NBPFILTER > 0 1534 1.2.2.2 yamt if (sc->sc_drvbpf != NULL) { 1535 1.2.2.2 yamt struct wpi_tx_radiotap_header *tap = &sc->sc_txtap; 1536 1.2.2.2 yamt 1537 1.2.2.2 yamt tap->wt_flags = 0; 1538 1.2.2.2 yamt tap->wt_chan_freq = htole16(ni->ni_chan->ic_freq); 1539 1.2.2.2 yamt tap->wt_chan_flags = htole16(ni->ni_chan->ic_flags); 1540 1.2.2.2 yamt tap->wt_rate = rate; 1541 1.2.2.2 yamt tap->wt_hwqueue = ac; 1542 1.2.2.2 yamt if (wh->i_fc[1] & IEEE80211_FC1_WEP) 1543 1.2.2.2 yamt tap->wt_flags |= IEEE80211_RADIOTAP_F_WEP; 1544 1.2.2.2 yamt 1545 1.2.2.2 yamt bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1546 1.2.2.2 yamt } 1547 1.2.2.2 yamt #endif 1548 1.2.2.2 yamt 1549 1.2.2.2 yamt cmd = &ring->cmd[ring->cur]; 1550 1.2.2.2 yamt cmd->code = WPI_CMD_TX_DATA; 1551 1.2.2.2 yamt cmd->flags = 0; 1552 1.2.2.2 yamt cmd->qid = ring->qid; 1553 1.2.2.2 yamt cmd->idx = ring->cur; 1554 1.2.2.2 yamt 1555 1.2.2.2 yamt tx = (struct wpi_cmd_data *)cmd->data; 1556 1.2.2.2 yamt tx->flags = 0; 1557 1.2.2.2 yamt 1558 1.2.2.2 yamt if (!noack && !IEEE80211_IS_MULTICAST(wh->i_addr1)) { 1559 1.2.2.2 yamt tx->id = WPI_ID_BSS; 1560 1.2.2.2 yamt tx->flags |= htole32(WPI_TX_NEED_ACK); 1561 1.2.2.2 yamt if (m0->m_pkthdr.len + IEEE80211_CRC_LEN > 1562 1.2.2.2 yamt ic->ic_rtsthreshold || (WPI_RATE_IS_OFDM(rate) && 1563 1.2.2.2 yamt (ic->ic_flags & IEEE80211_F_USEPROT))) 1564 1.2.2.2 yamt tx->flags |= htole32(WPI_TX_NEED_RTS | 1565 1.2.2.2 yamt WPI_TX_FULL_TXOP); 1566 1.2.2.2 yamt } else 1567 1.2.2.2 yamt tx->id = WPI_ID_BROADCAST; 1568 1.2.2.2 yamt 1569 1.2.2.2 yamt tx->flags |= htole32(WPI_TX_AUTO_SEQ); 1570 1.2.2.2 yamt 1571 1.2.2.2 yamt if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 1572 1.2.2.2 yamt IEEE80211_FC0_TYPE_MGT) { 1573 1.2.2.2 yamt /* tell h/w to set timestamp in probe responses */ 1574 1.2.2.2 yamt if ((wh->i_fc[0] & 1575 1.2.2.2 yamt (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == 1576 1.2.2.2 yamt (IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_PROBE_RESP)) 1577 1.2.2.2 yamt tx->flags |= htole32(WPI_TX_INSERT_TSTAMP); 1578 1.2.2.2 yamt 1579 1.2.2.2 yamt if (((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1580 1.2.2.2 yamt IEEE80211_FC0_SUBTYPE_ASSOC_REQ) || 1581 1.2.2.2 yamt ((wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) == 1582 1.2.2.2 yamt IEEE80211_FC0_SUBTYPE_REASSOC_REQ)) 1583 1.2.2.2 yamt tx->timeout = htole16(3); 1584 1.2.2.2 yamt else 1585 1.2.2.2 yamt tx->timeout = htole16(2); 1586 1.2.2.2 yamt } else 1587 1.2.2.2 yamt tx->timeout = htole16(0); 1588 1.2.2.2 yamt 1589 1.2.2.2 yamt tx->rate = wpi_plcp_signal(rate); 1590 1.2.2.2 yamt 1591 1.2.2.2 yamt /* be very persistant at sending frames out */ 1592 1.2.2.2 yamt tx->rts_ntries = 7; 1593 1.2.2.2 yamt tx->data_ntries = 15; 1594 1.2.2.2 yamt 1595 1.2.2.2 yamt tx->ofdm_mask = 0xff; 1596 1.2.2.2 yamt tx->cck_mask = 0xf; 1597 1.2.2.2 yamt tx->lifetime = htole32(0xffffffff); 1598 1.2.2.2 yamt 1599 1.2.2.2 yamt tx->len = htole16(m0->m_pkthdr.len); 1600 1.2.2.2 yamt 1601 1.2.2.2 yamt /* save and trim IEEE802.11 header */ 1602 1.2.2.2 yamt m_copydata(m0, 0, hdrlen, (caddr_t)&tx->wh); 1603 1.2.2.2 yamt m_adj(m0, hdrlen); 1604 1.2.2.2 yamt 1605 1.2.2.2 yamt error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1606 1.2.2.2 yamt BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1607 1.2.2.2 yamt if (error != 0 && error != EFBIG) { 1608 1.2.2.2 yamt aprint_error("%s: could not map mbuf (error %d)\n", 1609 1.2.2.2 yamt sc->sc_dev.dv_xname, error); 1610 1.2.2.2 yamt m_freem(m0); 1611 1.2.2.2 yamt return error; 1612 1.2.2.2 yamt } 1613 1.2.2.2 yamt if (error != 0) { 1614 1.2.2.2 yamt /* too many fragments, linearize */ 1615 1.2.2.2 yamt MGETHDR(mnew, M_DONTWAIT, MT_DATA); 1616 1.2.2.2 yamt if (mnew == NULL) { 1617 1.2.2.2 yamt m_freem(m0); 1618 1.2.2.2 yamt return ENOMEM; 1619 1.2.2.2 yamt } 1620 1.2.2.2 yamt 1621 1.2.2.2 yamt M_COPY_PKTHDR(mnew, m0); 1622 1.2.2.2 yamt if (m0->m_pkthdr.len > MHLEN) { 1623 1.2.2.2 yamt MCLGET(mnew, M_DONTWAIT); 1624 1.2.2.2 yamt if (!(mnew->m_flags & M_EXT)) { 1625 1.2.2.2 yamt m_freem(m0); 1626 1.2.2.2 yamt m_freem(mnew); 1627 1.2.2.2 yamt return ENOMEM; 1628 1.2.2.2 yamt } 1629 1.2.2.2 yamt } 1630 1.2.2.2 yamt 1631 1.2.2.2 yamt m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, caddr_t)); 1632 1.2.2.2 yamt m_freem(m0); 1633 1.2.2.2 yamt mnew->m_len = mnew->m_pkthdr.len; 1634 1.2.2.2 yamt m0 = mnew; 1635 1.2.2.2 yamt 1636 1.2.2.2 yamt error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 1637 1.2.2.2 yamt BUS_DMA_WRITE | BUS_DMA_NOWAIT); 1638 1.2.2.2 yamt if (error != 0) { 1639 1.2.2.2 yamt aprint_error("%s: could not map mbuf (error %d)\n", 1640 1.2.2.2 yamt sc->sc_dev.dv_xname, error); 1641 1.2.2.2 yamt m_freem(m0); 1642 1.2.2.2 yamt return error; 1643 1.2.2.2 yamt } 1644 1.2.2.2 yamt } 1645 1.2.2.2 yamt 1646 1.2.2.2 yamt data->m = m0; 1647 1.2.2.2 yamt data->ni = ni; 1648 1.2.2.2 yamt 1649 1.2.2.2 yamt DPRINTFN(4, ("sending data: qid=%d idx=%d len=%d nsegs=%d\n", 1650 1.2.2.2 yamt ring->qid, ring->cur, m0->m_pkthdr.len, data->map->dm_nsegs)); 1651 1.2.2.2 yamt 1652 1.2.2.2 yamt /* first scatter/gather segment is used by the tx data command */ 1653 1.2.2.2 yamt desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 1654 1.2.2.2 yamt (1 + data->map->dm_nsegs) << 24); 1655 1.2.2.2 yamt desc->segs[0].addr = htole32(ring->cmd_dma.paddr + 1656 1.2.2.2 yamt ring->cur * sizeof (struct wpi_tx_cmd)); 1657 1.2.2.2 yamt /*XXX The next line might be wrong. I don't use hdrlen*/ 1658 1.2.2.2 yamt desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_data)); 1659 1.2.2.2 yamt 1660 1.2.2.2 yamt for (i = 1; i <= data->map->dm_nsegs; i++) { 1661 1.2.2.2 yamt desc->segs[i].addr = 1662 1.2.2.2 yamt htole32(data->map->dm_segs[i - 1].ds_addr); 1663 1.2.2.2 yamt desc->segs[i].len = 1664 1.2.2.2 yamt htole32(data->map->dm_segs[i - 1].ds_len); 1665 1.2.2.2 yamt } 1666 1.2.2.2 yamt 1667 1.2.2.2 yamt ring->queued++; 1668 1.2.2.2 yamt 1669 1.2.2.2 yamt /* kick ring */ 1670 1.2.2.2 yamt ring->cur = (ring->cur + 1) % WPI_TX_RING_COUNT; 1671 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 1672 1.2.2.2 yamt 1673 1.2.2.2 yamt return 0; 1674 1.2.2.2 yamt } 1675 1.2.2.2 yamt 1676 1.2.2.2 yamt static void 1677 1.2.2.2 yamt wpi_start(struct ifnet *ifp) 1678 1.2.2.2 yamt { 1679 1.2.2.2 yamt struct wpi_softc *sc = ifp->if_softc; 1680 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 1681 1.2.2.2 yamt struct ieee80211_node *ni; 1682 1.2.2.2 yamt struct ether_header *eh; 1683 1.2.2.2 yamt struct mbuf *m0; 1684 1.2.2.2 yamt int ac; 1685 1.2.2.2 yamt 1686 1.2.2.2 yamt /* 1687 1.2.2.2 yamt * net80211 may still try to send management frames even if the 1688 1.2.2.2 yamt * IFF_RUNNING flag is not set... 1689 1.2.2.2 yamt */ 1690 1.2.2.2 yamt if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 1691 1.2.2.2 yamt return; 1692 1.2.2.2 yamt 1693 1.2.2.2 yamt for (;;) { 1694 1.2.2.2 yamt IF_POLL(&ic->ic_mgtq, m0); 1695 1.2.2.2 yamt if (m0 != NULL) { 1696 1.2.2.2 yamt IF_DEQUEUE(&ic->ic_mgtq, m0); 1697 1.2.2.2 yamt 1698 1.2.2.2 yamt ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif; 1699 1.2.2.2 yamt m0->m_pkthdr.rcvif = NULL; 1700 1.2.2.2 yamt 1701 1.2.2.2 yamt /* management frames go into ring 0 */ 1702 1.2.2.2 yamt if (sc->txq[0].queued > sc->txq[0].count - 8) { 1703 1.2.2.2 yamt ifp->if_oerrors++; 1704 1.2.2.2 yamt continue; 1705 1.2.2.2 yamt } 1706 1.2.2.2 yamt #if NBPFILTER > 0 1707 1.2.2.2 yamt if (ic->ic_rawbpf != NULL) 1708 1.2.2.2 yamt bpf_mtap(ic->ic_rawbpf, m0); 1709 1.2.2.2 yamt #endif 1710 1.2.2.2 yamt if (wpi_tx_data(sc, m0, ni, 0) != 0) { 1711 1.2.2.2 yamt ifp->if_oerrors++; 1712 1.2.2.2 yamt break; 1713 1.2.2.2 yamt } 1714 1.2.2.2 yamt } else { 1715 1.2.2.2 yamt if (ic->ic_state != IEEE80211_S_RUN) 1716 1.2.2.2 yamt break; 1717 1.2.2.2 yamt IF_DEQUEUE(&ifp->if_snd, m0); 1718 1.2.2.2 yamt if (m0 == NULL) 1719 1.2.2.2 yamt break; 1720 1.2.2.2 yamt 1721 1.2.2.2 yamt if (m0->m_len < sizeof (*eh) && 1722 1.2.2.2 yamt (m0 = m_pullup(m0, sizeof (*eh))) != NULL) { 1723 1.2.2.2 yamt ifp->if_oerrors++; 1724 1.2.2.2 yamt continue; 1725 1.2.2.2 yamt } 1726 1.2.2.2 yamt eh = mtod(m0, struct ether_header *); 1727 1.2.2.2 yamt ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1728 1.2.2.2 yamt if (ni == NULL) { 1729 1.2.2.2 yamt m_freem(m0); 1730 1.2.2.2 yamt ifp->if_oerrors++; 1731 1.2.2.2 yamt continue; 1732 1.2.2.2 yamt } 1733 1.2.2.2 yamt 1734 1.2.2.2 yamt /* classify mbuf so we can find which tx ring to use */ 1735 1.2.2.2 yamt if (ieee80211_classify(ic, m0, ni) != 0) { 1736 1.2.2.2 yamt m_freem(m0); 1737 1.2.2.2 yamt ieee80211_free_node(ni); 1738 1.2.2.2 yamt ifp->if_oerrors++; 1739 1.2.2.2 yamt continue; 1740 1.2.2.2 yamt } 1741 1.2.2.2 yamt 1742 1.2.2.2 yamt /* no QoS encapsulation for EAPOL frames */ 1743 1.2.2.2 yamt ac = (eh->ether_type != htons(ETHERTYPE_PAE)) ? 1744 1.2.2.2 yamt M_WME_GETAC(m0) : WME_AC_BE; 1745 1.2.2.2 yamt 1746 1.2.2.2 yamt if (sc->txq[ac].queued > sc->txq[ac].count - 8) { 1747 1.2.2.2 yamt /* there is no place left in this ring */ 1748 1.2.2.2 yamt IF_PREPEND(&ifp->if_snd, m0); 1749 1.2.2.2 yamt ifp->if_flags |= IFF_OACTIVE; 1750 1.2.2.2 yamt break; 1751 1.2.2.2 yamt } 1752 1.2.2.2 yamt #if NBPFILTER > 0 1753 1.2.2.2 yamt if (ifp->if_bpf != NULL) 1754 1.2.2.2 yamt bpf_mtap(ifp->if_bpf, m0); 1755 1.2.2.2 yamt #endif 1756 1.2.2.2 yamt m0 = ieee80211_encap(ic, m0, ni); 1757 1.2.2.2 yamt if (m0 == NULL) { 1758 1.2.2.2 yamt ieee80211_free_node(ni); 1759 1.2.2.2 yamt ifp->if_oerrors++; 1760 1.2.2.2 yamt continue; 1761 1.2.2.2 yamt } 1762 1.2.2.2 yamt #if NBPFILTER > 0 1763 1.2.2.2 yamt if (ic->ic_rawbpf != NULL) 1764 1.2.2.2 yamt bpf_mtap(ic->ic_rawbpf, m0); 1765 1.2.2.2 yamt #endif 1766 1.2.2.2 yamt if (wpi_tx_data(sc, m0, ni, ac) != 0) { 1767 1.2.2.2 yamt ieee80211_free_node(ni); 1768 1.2.2.2 yamt ifp->if_oerrors++; 1769 1.2.2.2 yamt break; 1770 1.2.2.2 yamt } 1771 1.2.2.2 yamt } 1772 1.2.2.2 yamt 1773 1.2.2.2 yamt sc->sc_tx_timer = 5; 1774 1.2.2.2 yamt ifp->if_timer = 1; 1775 1.2.2.2 yamt } 1776 1.2.2.2 yamt } 1777 1.2.2.2 yamt 1778 1.2.2.2 yamt static void 1779 1.2.2.2 yamt wpi_watchdog(struct ifnet *ifp) 1780 1.2.2.2 yamt { 1781 1.2.2.2 yamt struct wpi_softc *sc = ifp->if_softc; 1782 1.2.2.2 yamt 1783 1.2.2.2 yamt ifp->if_timer = 0; 1784 1.2.2.2 yamt 1785 1.2.2.2 yamt if (sc->sc_tx_timer > 0) { 1786 1.2.2.2 yamt if (--sc->sc_tx_timer == 0) { 1787 1.2.2.2 yamt aprint_error("%s: device timeout\n", 1788 1.2.2.2 yamt sc->sc_dev.dv_xname); 1789 1.2.2.2 yamt ifp->if_oerrors++; 1790 1.2.2.2 yamt ifp->if_flags &= ~IFF_UP; 1791 1.2.2.2 yamt wpi_stop(ifp, 1); 1792 1.2.2.2 yamt return; 1793 1.2.2.2 yamt } 1794 1.2.2.2 yamt ifp->if_timer = 1; 1795 1.2.2.2 yamt } 1796 1.2.2.2 yamt 1797 1.2.2.2 yamt ieee80211_watchdog(&sc->sc_ic); 1798 1.2.2.2 yamt } 1799 1.2.2.2 yamt 1800 1.2.2.2 yamt static int 1801 1.2.2.2 yamt wpi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1802 1.2.2.2 yamt { 1803 1.2.2.2 yamt #define IS_RUNNING(ifp) \ 1804 1.2.2.2 yamt ((ifp->if_flags & IFF_UP) && (ifp->if_flags & IFF_RUNNING)) 1805 1.2.2.2 yamt 1806 1.2.2.2 yamt struct wpi_softc *sc = ifp->if_softc; 1807 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 1808 1.2.2.2 yamt struct ifreq *ifr = (struct ifreq *)data; 1809 1.2.2.2 yamt int s, error = 0; 1810 1.2.2.2 yamt 1811 1.2.2.2 yamt s = splnet(); 1812 1.2.2.2 yamt 1813 1.2.2.2 yamt switch (cmd) { 1814 1.2.2.2 yamt case SIOCSIFFLAGS: 1815 1.2.2.2 yamt if (ifp->if_flags & IFF_UP) { 1816 1.2.2.2 yamt if (!(ifp->if_flags & IFF_RUNNING)) 1817 1.2.2.2 yamt wpi_init(ifp); 1818 1.2.2.2 yamt } else { 1819 1.2.2.2 yamt if (ifp->if_flags & IFF_RUNNING) 1820 1.2.2.2 yamt wpi_stop(ifp, 1); 1821 1.2.2.2 yamt } 1822 1.2.2.2 yamt break; 1823 1.2.2.2 yamt 1824 1.2.2.2 yamt case SIOCADDMULTI: 1825 1.2.2.2 yamt case SIOCDELMULTI: 1826 1.2.2.2 yamt error = (cmd == SIOCADDMULTI) ? 1827 1.2.2.2 yamt ether_addmulti(ifr, &sc->sc_ec) : 1828 1.2.2.2 yamt ether_delmulti(ifr, &sc->sc_ec); 1829 1.2.2.2 yamt if (error == ENETRESET) { 1830 1.2.2.2 yamt /* setup multicast filter, etc */ 1831 1.2.2.2 yamt error = 0; 1832 1.2.2.2 yamt } 1833 1.2.2.2 yamt break; 1834 1.2.2.2 yamt 1835 1.2.2.2 yamt default: 1836 1.2.2.2 yamt error = ieee80211_ioctl(&sc->sc_ic, cmd, data); 1837 1.2.2.2 yamt } 1838 1.2.2.2 yamt 1839 1.2.2.2 yamt if (error == ENETRESET) { 1840 1.2.2.2 yamt if (IS_RUNNING(ifp) && 1841 1.2.2.2 yamt (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1842 1.2.2.2 yamt wpi_init(ifp); 1843 1.2.2.2 yamt error = 0; 1844 1.2.2.2 yamt } 1845 1.2.2.2 yamt 1846 1.2.2.2 yamt splx(s); 1847 1.2.2.2 yamt return error; 1848 1.2.2.2 yamt 1849 1.2.2.2 yamt #undef IS_RUNNING 1850 1.2.2.2 yamt } 1851 1.2.2.2 yamt 1852 1.2.2.2 yamt /* 1853 1.2.2.2 yamt * Extract various information from EEPROM. 1854 1.2.2.2 yamt */ 1855 1.2.2.2 yamt static void 1856 1.2.2.2 yamt wpi_read_eeprom(struct wpi_softc *sc) 1857 1.2.2.2 yamt { 1858 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 1859 1.2.2.2 yamt uint16_t val; 1860 1.2.2.2 yamt int i; 1861 1.2.2.2 yamt 1862 1.2.2.2 yamt /* read MAC address */ 1863 1.2.2.2 yamt val = wpi_read_prom_word(sc, WPI_EEPROM_MAC + 0); 1864 1.2.2.2 yamt ic->ic_myaddr[0] = val & 0xff; 1865 1.2.2.2 yamt ic->ic_myaddr[1] = val >> 8; 1866 1.2.2.2 yamt val = wpi_read_prom_word(sc, WPI_EEPROM_MAC + 1); 1867 1.2.2.2 yamt ic->ic_myaddr[2] = val & 0xff; 1868 1.2.2.2 yamt ic->ic_myaddr[3] = val >> 8; 1869 1.2.2.2 yamt val = wpi_read_prom_word(sc, WPI_EEPROM_MAC + 2); 1870 1.2.2.2 yamt ic->ic_myaddr[4] = val & 0xff; 1871 1.2.2.2 yamt ic->ic_myaddr[5] = val >> 8; 1872 1.2.2.2 yamt 1873 1.2.2.2 yamt /* read power settings for 2.4GHz channels */ 1874 1.2.2.2 yamt for (i = 0; i < 14; i++) { 1875 1.2.2.2 yamt sc->pwr1[i] = wpi_read_prom_word(sc, WPI_EEPROM_PWR1 + i); 1876 1.2.2.2 yamt sc->pwr2[i] = wpi_read_prom_word(sc, WPI_EEPROM_PWR2 + i); 1877 1.2.2.2 yamt DPRINTFN(2, ("channel %d pwr1 0x%04x pwr2 0x%04x\n", i + 1, 1878 1.2.2.2 yamt sc->pwr1[i], sc->pwr2[i])); 1879 1.2.2.2 yamt } 1880 1.2.2.2 yamt } 1881 1.2.2.2 yamt 1882 1.2.2.2 yamt /* 1883 1.2.2.2 yamt * Send a command to the firmware. 1884 1.2.2.2 yamt */ 1885 1.2.2.2 yamt static int 1886 1.2.2.2 yamt wpi_cmd(struct wpi_softc *sc, int code, const void *buf, int size, int async) 1887 1.2.2.2 yamt { 1888 1.2.2.2 yamt struct wpi_tx_ring *ring = &sc->cmdq; 1889 1.2.2.2 yamt struct wpi_tx_desc *desc; 1890 1.2.2.2 yamt struct wpi_tx_cmd *cmd; 1891 1.2.2.2 yamt 1892 1.2.2.2 yamt KASSERT(size <= sizeof cmd->data); 1893 1.2.2.2 yamt 1894 1.2.2.2 yamt desc = &ring->desc[ring->cur]; 1895 1.2.2.2 yamt cmd = &ring->cmd[ring->cur]; 1896 1.2.2.2 yamt 1897 1.2.2.2 yamt cmd->code = code; 1898 1.2.2.2 yamt cmd->flags = 0; 1899 1.2.2.2 yamt cmd->qid = ring->qid; 1900 1.2.2.2 yamt cmd->idx = ring->cur; 1901 1.2.2.2 yamt memcpy(cmd->data, buf, size); 1902 1.2.2.2 yamt 1903 1.2.2.2 yamt desc->flags = htole32(WPI_PAD32(size) << 28 | 1 << 24); 1904 1.2.2.2 yamt desc->segs[0].addr = htole32(ring->cmd_dma.paddr + 1905 1.2.2.2 yamt ring->cur * sizeof (struct wpi_tx_cmd)); 1906 1.2.2.2 yamt desc->segs[0].len = htole32(4 + size); 1907 1.2.2.2 yamt 1908 1.2.2.2 yamt /* kick cmd ring */ 1909 1.2.2.2 yamt ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; 1910 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 1911 1.2.2.2 yamt 1912 1.2.2.2 yamt return async ? 0 : tsleep(cmd, PCATCH, "wpicmd", hz); 1913 1.2.2.2 yamt } 1914 1.2.2.2 yamt 1915 1.2.2.2 yamt static int 1916 1.2.2.2 yamt wpi_wme_update(struct ieee80211com *ic) 1917 1.2.2.2 yamt { 1918 1.2.2.2 yamt #define WPI_EXP2(v) htole16((1 << (v)) - 1) 1919 1.2.2.2 yamt #define WPI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 1920 1.2.2.2 yamt struct wpi_softc *sc = ic->ic_ifp->if_softc; 1921 1.2.2.2 yamt const struct wmeParams *wmep; 1922 1.2.2.2 yamt struct wpi_wme_setup wme; 1923 1.2.2.2 yamt int ac; 1924 1.2.2.2 yamt 1925 1.2.2.2 yamt /* don't override default WME values if WME is not actually enabled */ 1926 1.2.2.2 yamt if (!(ic->ic_flags & IEEE80211_F_WME)) 1927 1.2.2.2 yamt return 0; 1928 1.2.2.2 yamt 1929 1.2.2.2 yamt wme.flags = 0; 1930 1.2.2.2 yamt for (ac = 0; ac < WME_NUM_AC; ac++) { 1931 1.2.2.2 yamt wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 1932 1.2.2.2 yamt wme.ac[ac].aifsn = wmep->wmep_aifsn; 1933 1.2.2.2 yamt wme.ac[ac].cwmin = WPI_EXP2(wmep->wmep_logcwmin); 1934 1.2.2.2 yamt wme.ac[ac].cwmax = WPI_EXP2(wmep->wmep_logcwmax); 1935 1.2.2.2 yamt wme.ac[ac].txop = WPI_USEC(wmep->wmep_txopLimit); 1936 1.2.2.2 yamt 1937 1.2.2.2 yamt DPRINTF(("setting WME for queue %d aifsn=%d cwmin=%d cwmax=%d " 1938 1.2.2.2 yamt "txop=%d\n", ac, wme.ac[ac].aifsn, wme.ac[ac].cwmin, 1939 1.2.2.2 yamt wme.ac[ac].cwmax, wme.ac[ac].txop)); 1940 1.2.2.2 yamt } 1941 1.2.2.2 yamt 1942 1.2.2.2 yamt return wpi_cmd(sc, WPI_CMD_SET_WME, &wme, sizeof wme, 1); 1943 1.2.2.2 yamt #undef WPI_USEC 1944 1.2.2.2 yamt #undef WPI_EXP2 1945 1.2.2.2 yamt } 1946 1.2.2.2 yamt 1947 1.2.2.2 yamt /* 1948 1.2.2.2 yamt * Configure h/w multi-rate retries. 1949 1.2.2.2 yamt */ 1950 1.2.2.2 yamt static int 1951 1.2.2.2 yamt wpi_mrr_setup(struct wpi_softc *sc) 1952 1.2.2.2 yamt { 1953 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 1954 1.2.2.2 yamt struct wpi_mrr_setup mrr; 1955 1.2.2.2 yamt int i, error; 1956 1.2.2.2 yamt 1957 1.2.2.2 yamt /* CCK rates (not used with 802.11a) */ 1958 1.2.2.2 yamt for (i = WPI_CCK1; i <= WPI_CCK11; i++) { 1959 1.2.2.2 yamt mrr.rates[i].flags = 0; 1960 1.2.2.2 yamt mrr.rates[i].plcp = wpi_ridx_to_plcp[i]; 1961 1.2.2.2 yamt /* fallback to the immediate lower CCK rate (if any) */ 1962 1.2.2.2 yamt mrr.rates[i].next = (i == WPI_CCK1) ? WPI_CCK1 : i - 1; 1963 1.2.2.2 yamt /* try one time at this rate before falling back to "next" */ 1964 1.2.2.2 yamt mrr.rates[i].ntries = 1; 1965 1.2.2.2 yamt } 1966 1.2.2.2 yamt 1967 1.2.2.2 yamt /* OFDM rates (not used with 802.11b) */ 1968 1.2.2.2 yamt for (i = WPI_OFDM6; i <= WPI_OFDM54; i++) { 1969 1.2.2.2 yamt mrr.rates[i].flags = 0; 1970 1.2.2.2 yamt mrr.rates[i].plcp = wpi_ridx_to_plcp[i]; 1971 1.2.2.2 yamt /* fallback to the immediate lower rate (if any) */ 1972 1.2.2.2 yamt /* we allow fallback from OFDM/6 to CCK/2 in 11b/g mode */ 1973 1.2.2.2 yamt mrr.rates[i].next = (i == WPI_OFDM6) ? 1974 1.2.2.2 yamt ((ic->ic_curmode == IEEE80211_MODE_11A) ? 1975 1.2.2.2 yamt WPI_OFDM6 : WPI_CCK2) : 1976 1.2.2.2 yamt i - 1; 1977 1.2.2.2 yamt /* try one time at this rate before falling back to "next" */ 1978 1.2.2.2 yamt mrr.rates[i].ntries = 1; 1979 1.2.2.2 yamt } 1980 1.2.2.2 yamt 1981 1.2.2.2 yamt /* setup MRR for control frames */ 1982 1.2.2.2 yamt mrr.which = htole32(WPI_MRR_CTL); 1983 1.2.2.2 yamt error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 1); 1984 1.2.2.2 yamt if (error != 0) { 1985 1.2.2.2 yamt aprint_error("%s: could not setup MRR for control frames\n", 1986 1.2.2.2 yamt sc->sc_dev.dv_xname); 1987 1.2.2.2 yamt return error; 1988 1.2.2.2 yamt } 1989 1.2.2.2 yamt 1990 1.2.2.2 yamt /* setup MRR for data frames */ 1991 1.2.2.2 yamt mrr.which = htole32(WPI_MRR_DATA); 1992 1.2.2.2 yamt error = wpi_cmd(sc, WPI_CMD_MRR_SETUP, &mrr, sizeof mrr, 1); 1993 1.2.2.2 yamt if (error != 0) { 1994 1.2.2.2 yamt aprint_error("%s: could not setup MRR for data frames\n", 1995 1.2.2.2 yamt sc->sc_dev.dv_xname); 1996 1.2.2.2 yamt return error; 1997 1.2.2.2 yamt } 1998 1.2.2.2 yamt 1999 1.2.2.2 yamt return 0; 2000 1.2.2.2 yamt } 2001 1.2.2.2 yamt 2002 1.2.2.2 yamt static void 2003 1.2.2.2 yamt wpi_set_led(struct wpi_softc *sc, uint8_t which, uint8_t off, uint8_t on) 2004 1.2.2.2 yamt { 2005 1.2.2.2 yamt struct wpi_cmd_led led; 2006 1.2.2.2 yamt 2007 1.2.2.2 yamt led.which = which; 2008 1.2.2.2 yamt led.unit = htole32(100000); /* on/off in unit of 100ms */ 2009 1.2.2.2 yamt led.off = off; 2010 1.2.2.2 yamt led.on = on; 2011 1.2.2.2 yamt 2012 1.2.2.2 yamt (void)wpi_cmd(sc, WPI_CMD_SET_LED, &led, sizeof led, 1); 2013 1.2.2.2 yamt } 2014 1.2.2.2 yamt 2015 1.2.2.2 yamt static void 2016 1.2.2.2 yamt wpi_enable_tsf(struct wpi_softc *sc, struct ieee80211_node *ni) 2017 1.2.2.2 yamt { 2018 1.2.2.2 yamt struct wpi_cmd_tsf tsf; 2019 1.2.2.2 yamt uint64_t val, mod; 2020 1.2.2.2 yamt 2021 1.2.2.2 yamt memset(&tsf, 0, sizeof tsf); 2022 1.2.2.2 yamt memcpy(&tsf.tstamp, ni->ni_tstamp.data, 8); 2023 1.2.2.2 yamt tsf.bintval = htole16(ni->ni_intval); 2024 1.2.2.2 yamt tsf.lintval = htole16(10); 2025 1.2.2.2 yamt 2026 1.2.2.2 yamt /* compute remaining time until next beacon */ 2027 1.2.2.2 yamt val = (uint64_t)ni->ni_intval * 1024; /* msecs -> usecs */ 2028 1.2.2.2 yamt mod = le64toh(tsf.tstamp) % val; 2029 1.2.2.2 yamt tsf.binitval = htole32((uint32_t)(val - mod)); 2030 1.2.2.2 yamt 2031 1.2.2.2 yamt DPRINTF(("TSF bintval=%u tstamp=%llu, init=%u\n", 2032 1.2.2.2 yamt ni->ni_intval, le64toh(tsf.tstamp), (uint32_t)(val - mod))); 2033 1.2.2.2 yamt 2034 1.2.2.2 yamt if (wpi_cmd(sc, WPI_CMD_TSF, &tsf, sizeof tsf, 1) != 0) 2035 1.2.2.2 yamt aprint_error("%s: could not enable TSF\n", sc->sc_dev.dv_xname); 2036 1.2.2.2 yamt } 2037 1.2.2.2 yamt 2038 1.2.2.2 yamt /* 2039 1.2.2.2 yamt * Build a beacon frame that the firmware will broadcast periodically in 2040 1.2.2.2 yamt * IBSS or HostAP modes. 2041 1.2.2.2 yamt */ 2042 1.2.2.2 yamt static int 2043 1.2.2.2 yamt wpi_setup_beacon(struct wpi_softc *sc, struct ieee80211_node *ni) 2044 1.2.2.2 yamt { 2045 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 2046 1.2.2.2 yamt struct wpi_tx_ring *ring = &sc->cmdq; 2047 1.2.2.2 yamt struct wpi_tx_desc *desc; 2048 1.2.2.2 yamt struct wpi_tx_data *data; 2049 1.2.2.2 yamt struct wpi_tx_cmd *cmd; 2050 1.2.2.2 yamt struct wpi_cmd_beacon *bcn; 2051 1.2.2.2 yamt struct ieee80211_beacon_offsets bo; 2052 1.2.2.2 yamt struct mbuf *m0; 2053 1.2.2.2 yamt int error; 2054 1.2.2.2 yamt 2055 1.2.2.2 yamt desc = &ring->desc[ring->cur]; 2056 1.2.2.2 yamt data = &ring->data[ring->cur]; 2057 1.2.2.2 yamt 2058 1.2.2.2 yamt m0 = ieee80211_beacon_alloc(ic, ni, &bo); 2059 1.2.2.2 yamt if (m0 == NULL) { 2060 1.2.2.2 yamt aprint_error("%s: could not allocate beacon frame\n", 2061 1.2.2.2 yamt sc->sc_dev.dv_xname); 2062 1.2.2.2 yamt return ENOMEM; 2063 1.2.2.2 yamt } 2064 1.2.2.2 yamt 2065 1.2.2.2 yamt cmd = &ring->cmd[ring->cur]; 2066 1.2.2.2 yamt cmd->code = WPI_CMD_SET_BEACON; 2067 1.2.2.2 yamt cmd->flags = 0; 2068 1.2.2.2 yamt cmd->qid = ring->qid; 2069 1.2.2.2 yamt cmd->idx = ring->cur; 2070 1.2.2.2 yamt 2071 1.2.2.2 yamt bcn = (struct wpi_cmd_beacon *)cmd->data; 2072 1.2.2.2 yamt memset(bcn, 0, sizeof (struct wpi_cmd_beacon)); 2073 1.2.2.2 yamt bcn->id = WPI_ID_BROADCAST; 2074 1.2.2.2 yamt bcn->ofdm_mask = 0xff; 2075 1.2.2.2 yamt bcn->cck_mask = 0x0f; 2076 1.2.2.2 yamt bcn->lifetime = htole32(0xffffffff); 2077 1.2.2.2 yamt bcn->len = htole16(m0->m_pkthdr.len); 2078 1.2.2.2 yamt bcn->rate = (ic->ic_curmode == IEEE80211_MODE_11A) ? 2079 1.2.2.2 yamt wpi_plcp_signal(12) : wpi_plcp_signal(2); 2080 1.2.2.2 yamt bcn->flags = htole32(WPI_TX_AUTO_SEQ | WPI_TX_INSERT_TSTAMP); 2081 1.2.2.2 yamt 2082 1.2.2.2 yamt /* save and trim IEEE802.11 header */ 2083 1.2.2.2 yamt m_copydata(m0, 0, sizeof (struct ieee80211_frame), (caddr_t)&bcn->wh); 2084 1.2.2.2 yamt m_adj(m0, sizeof (struct ieee80211_frame)); 2085 1.2.2.2 yamt 2086 1.2.2.2 yamt /* assume beacon frame is contiguous */ 2087 1.2.2.2 yamt error = bus_dmamap_load_mbuf(sc->sc_dmat, data->map, m0, 2088 1.2.2.2 yamt BUS_DMA_READ | BUS_DMA_NOWAIT); 2089 1.2.2.2 yamt if (error) { 2090 1.2.2.2 yamt aprint_error("%s: could not map beacon\n", sc->sc_dev.dv_xname); 2091 1.2.2.2 yamt m_freem(m0); 2092 1.2.2.2 yamt return error; 2093 1.2.2.2 yamt } 2094 1.2.2.2 yamt 2095 1.2.2.2 yamt data->m = m0; 2096 1.2.2.2 yamt 2097 1.2.2.2 yamt /* first scatter/gather segment is used by the beacon command */ 2098 1.2.2.2 yamt desc->flags = htole32(WPI_PAD32(m0->m_pkthdr.len) << 28 | 2 << 24); 2099 1.2.2.2 yamt desc->segs[0].addr = htole32(ring->cmd_dma.paddr + 2100 1.2.2.2 yamt ring->cur * sizeof (struct wpi_tx_cmd)); 2101 1.2.2.2 yamt desc->segs[0].len = htole32(4 + sizeof (struct wpi_cmd_beacon)); 2102 1.2.2.2 yamt desc->segs[1].addr = htole32(data->map->dm_segs[0].ds_addr); 2103 1.2.2.2 yamt desc->segs[1].len = htole32(data->map->dm_segs[0].ds_len); 2104 1.2.2.2 yamt 2105 1.2.2.2 yamt /* kick cmd ring */ 2106 1.2.2.2 yamt ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; 2107 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 2108 1.2.2.2 yamt 2109 1.2.2.2 yamt return 0; 2110 1.2.2.2 yamt } 2111 1.2.2.2 yamt 2112 1.2.2.2 yamt static int 2113 1.2.2.2 yamt wpi_auth(struct wpi_softc *sc) 2114 1.2.2.2 yamt { 2115 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 2116 1.2.2.2 yamt struct ieee80211_node *ni = ic->ic_bss; 2117 1.2.2.2 yamt struct wpi_node node; 2118 1.2.2.2 yamt int error; 2119 1.2.2.2 yamt 2120 1.2.2.2 yamt /* update adapter's configuration */ 2121 1.2.2.2 yamt IEEE80211_ADDR_COPY(sc->config.bssid, ni->ni_bssid); 2122 1.2.2.2 yamt sc->config.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2123 1.2.2.2 yamt sc->config.flags = htole32(WPI_CONFIG_TSF); 2124 1.2.2.2 yamt if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) { 2125 1.2.2.2 yamt sc->config.flags |= htole32(WPI_CONFIG_AUTO | 2126 1.2.2.2 yamt WPI_CONFIG_24GHZ); 2127 1.2.2.2 yamt } 2128 1.2.2.2 yamt switch (ic->ic_curmode) { 2129 1.2.2.2 yamt case IEEE80211_MODE_11A: 2130 1.2.2.2 yamt sc->config.cck_mask = 0; 2131 1.2.2.2 yamt sc->config.ofdm_mask = 0x15; 2132 1.2.2.2 yamt break; 2133 1.2.2.2 yamt case IEEE80211_MODE_11B: 2134 1.2.2.2 yamt sc->config.cck_mask = 0x03; 2135 1.2.2.2 yamt sc->config.ofdm_mask = 0; 2136 1.2.2.2 yamt break; 2137 1.2.2.2 yamt default: /* assume 802.11b/g */ 2138 1.2.2.2 yamt sc->config.cck_mask = 0x0f; 2139 1.2.2.2 yamt sc->config.ofdm_mask = 0x15; 2140 1.2.2.2 yamt } 2141 1.2.2.2 yamt 2142 1.2.2.2 yamt DPRINTF(("config chan %d flags %x cck %x ofdm %x\n", sc->config.chan, 2143 1.2.2.2 yamt sc->config.flags, sc->config.cck_mask, sc->config.ofdm_mask)); 2144 1.2.2.2 yamt error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, 2145 1.2.2.2 yamt sizeof (struct wpi_config), 1); 2146 1.2.2.2 yamt if (error != 0) { 2147 1.2.2.2 yamt aprint_error("%s: could not configure\n", sc->sc_dev.dv_xname); 2148 1.2.2.2 yamt return error; 2149 1.2.2.2 yamt } 2150 1.2.2.2 yamt 2151 1.2.2.2 yamt /* add default node */ 2152 1.2.2.2 yamt memset(&node, 0, sizeof node); 2153 1.2.2.2 yamt IEEE80211_ADDR_COPY(node.bssid, ni->ni_bssid); 2154 1.2.2.2 yamt node.id = WPI_ID_BSS; 2155 1.2.2.2 yamt node.rate = (ic->ic_curmode == IEEE80211_MODE_11A) ? 2156 1.2.2.2 yamt wpi_plcp_signal(12) : wpi_plcp_signal(2); 2157 1.2.2.2 yamt error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 1); 2158 1.2.2.2 yamt if (error != 0) { 2159 1.2.2.2 yamt aprint_error("%s: could not add BSS node\n", sc->sc_dev.dv_xname); 2160 1.2.2.2 yamt return error; 2161 1.2.2.2 yamt } 2162 1.2.2.2 yamt 2163 1.2.2.2 yamt error = wpi_mrr_setup(sc); 2164 1.2.2.2 yamt if (error != 0) { 2165 1.2.2.2 yamt aprint_error("%s: could not setup MRR\n", sc->sc_dev.dv_xname); 2166 1.2.2.2 yamt return error; 2167 1.2.2.2 yamt } 2168 1.2.2.2 yamt 2169 1.2.2.2 yamt return 0; 2170 1.2.2.2 yamt } 2171 1.2.2.2 yamt 2172 1.2.2.2 yamt /* 2173 1.2.2.2 yamt * Send a scan request to the firmware. Since this command is huge, we map it 2174 1.2.2.2 yamt * into a mbuf instead of using the pre-allocated set of commands. 2175 1.2.2.2 yamt */ 2176 1.2.2.2 yamt static int 2177 1.2.2.2 yamt wpi_scan(struct wpi_softc *sc, uint16_t flags) 2178 1.2.2.2 yamt { 2179 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 2180 1.2.2.2 yamt struct wpi_tx_ring *ring = &sc->cmdq; 2181 1.2.2.2 yamt struct wpi_tx_desc *desc; 2182 1.2.2.2 yamt struct wpi_tx_data *data; 2183 1.2.2.2 yamt struct wpi_tx_cmd *cmd; 2184 1.2.2.2 yamt struct wpi_scan_hdr *hdr; 2185 1.2.2.2 yamt struct wpi_scan_chan *chan; 2186 1.2.2.2 yamt struct ieee80211_frame *wh; 2187 1.2.2.2 yamt struct ieee80211_rateset *rs; 2188 1.2.2.2 yamt struct ieee80211_channel *c; 2189 1.2.2.2 yamt enum ieee80211_phymode mode; 2190 1.2.2.2 yamt uint8_t *frm; 2191 1.2.2.2 yamt int nrates, pktlen, error; 2192 1.2.2.2 yamt 2193 1.2.2.2 yamt desc = &ring->desc[ring->cur]; 2194 1.2.2.2 yamt data = &ring->data[ring->cur]; 2195 1.2.2.2 yamt 2196 1.2.2.2 yamt MGETHDR(data->m, M_DONTWAIT, MT_DATA); 2197 1.2.2.2 yamt if (data->m == NULL) { 2198 1.2.2.2 yamt aprint_error("%s: could not allocate mbuf for scan command\n", 2199 1.2.2.2 yamt sc->sc_dev.dv_xname); 2200 1.2.2.2 yamt return ENOMEM; 2201 1.2.2.2 yamt } 2202 1.2.2.2 yamt 2203 1.2.2.2 yamt MCLGET(data->m, M_DONTWAIT); 2204 1.2.2.2 yamt if (!(data->m->m_flags & M_EXT)) { 2205 1.2.2.2 yamt m_freem(data->m); 2206 1.2.2.2 yamt data->m = NULL; 2207 1.2.2.2 yamt aprint_error("%s: could not allocate mbuf for scan command\n", 2208 1.2.2.2 yamt sc->sc_dev.dv_xname); 2209 1.2.2.2 yamt return ENOMEM; 2210 1.2.2.2 yamt } 2211 1.2.2.2 yamt 2212 1.2.2.2 yamt cmd = mtod(data->m, struct wpi_tx_cmd *); 2213 1.2.2.2 yamt cmd->code = WPI_CMD_SCAN; 2214 1.2.2.2 yamt cmd->flags = 0; 2215 1.2.2.2 yamt cmd->qid = ring->qid; 2216 1.2.2.2 yamt cmd->idx = ring->cur; 2217 1.2.2.2 yamt 2218 1.2.2.2 yamt hdr = (struct wpi_scan_hdr *)cmd->data; 2219 1.2.2.2 yamt memset(hdr, 0, sizeof (struct wpi_scan_hdr)); 2220 1.2.2.2 yamt hdr->first = 1; 2221 1.2.2.2 yamt /* 2222 1.2.2.2 yamt * Move to the next channel if no packets are received within 5 msecs 2223 1.2.2.2 yamt * after sending the probe request (this helps to reduce the duration 2224 1.2.2.2 yamt * of active scans). 2225 1.2.2.2 yamt */ 2226 1.2.2.2 yamt hdr->quiet = htole16(5); /* timeout in milliseconds */ 2227 1.2.2.2 yamt hdr->threshold = htole16(1); /* min # of packets */ 2228 1.2.2.2 yamt 2229 1.2.2.2 yamt if (flags & IEEE80211_CHAN_A) { 2230 1.2.2.2 yamt hdr->band = htole16(WPI_SCAN_5GHZ); 2231 1.2.2.2 yamt /* send probe requests at 6Mbps */ 2232 1.2.2.2 yamt hdr->rate = wpi_plcp_signal(12); 2233 1.2.2.2 yamt } else { 2234 1.2.2.2 yamt hdr->flags = htole32(WPI_CONFIG_24GHZ | WPI_CONFIG_AUTO); 2235 1.2.2.2 yamt /* send probe requests at 1Mbps */ 2236 1.2.2.2 yamt hdr->rate = wpi_plcp_signal(2); 2237 1.2.2.2 yamt } 2238 1.2.2.2 yamt hdr->id = WPI_ID_BROADCAST; 2239 1.2.2.2 yamt hdr->mask = htole32(0xffffffff); 2240 1.2.2.2 yamt hdr->magic1 = htole32(1 << 13); 2241 1.2.2.2 yamt 2242 1.2.2.2 yamt hdr->esslen = ic->ic_des_esslen; 2243 1.2.2.2 yamt memcpy(hdr->essid, ic->ic_des_essid, ic->ic_des_esslen); 2244 1.2.2.2 yamt 2245 1.2.2.2 yamt /* 2246 1.2.2.2 yamt * Build a probe request frame. Most of the following code is a 2247 1.2.2.2 yamt * copy & paste of what is done in net80211. 2248 1.2.2.2 yamt */ 2249 1.2.2.2 yamt wh = (struct ieee80211_frame *)(hdr + 1); 2250 1.2.2.2 yamt wh->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_MGT | 2251 1.2.2.2 yamt IEEE80211_FC0_SUBTYPE_PROBE_REQ; 2252 1.2.2.2 yamt wh->i_fc[1] = IEEE80211_FC1_DIR_NODS; 2253 1.2.2.2 yamt IEEE80211_ADDR_COPY(wh->i_addr1, etherbroadcastaddr); 2254 1.2.2.2 yamt IEEE80211_ADDR_COPY(wh->i_addr2, ic->ic_myaddr); 2255 1.2.2.2 yamt IEEE80211_ADDR_COPY(wh->i_addr3, etherbroadcastaddr); 2256 1.2.2.2 yamt *(u_int16_t *)&wh->i_dur[0] = 0; /* filled by h/w */ 2257 1.2.2.2 yamt *(u_int16_t *)&wh->i_seq[0] = 0; /* filled by h/w */ 2258 1.2.2.2 yamt 2259 1.2.2.2 yamt frm = (uint8_t *)(wh + 1); 2260 1.2.2.2 yamt 2261 1.2.2.2 yamt /* add essid IE */ 2262 1.2.2.2 yamt *frm++ = IEEE80211_ELEMID_SSID; 2263 1.2.2.2 yamt *frm++ = ic->ic_des_esslen; 2264 1.2.2.2 yamt memcpy(frm, ic->ic_des_essid, ic->ic_des_esslen); 2265 1.2.2.2 yamt frm += ic->ic_des_esslen; 2266 1.2.2.2 yamt 2267 1.2.2.2 yamt mode = ieee80211_chan2mode(ic, ic->ic_ibss_chan); 2268 1.2.2.2 yamt rs = &ic->ic_sup_rates[mode]; 2269 1.2.2.2 yamt 2270 1.2.2.2 yamt /* add supported rates IE */ 2271 1.2.2.2 yamt *frm++ = IEEE80211_ELEMID_RATES; 2272 1.2.2.2 yamt nrates = rs->rs_nrates; 2273 1.2.2.2 yamt if (nrates > IEEE80211_RATE_SIZE) 2274 1.2.2.2 yamt nrates = IEEE80211_RATE_SIZE; 2275 1.2.2.2 yamt *frm++ = nrates; 2276 1.2.2.2 yamt memcpy(frm, rs->rs_rates, nrates); 2277 1.2.2.2 yamt frm += nrates; 2278 1.2.2.2 yamt 2279 1.2.2.2 yamt /* add supported xrates IE */ 2280 1.2.2.2 yamt if (rs->rs_nrates > IEEE80211_RATE_SIZE) { 2281 1.2.2.2 yamt nrates = rs->rs_nrates - IEEE80211_RATE_SIZE; 2282 1.2.2.2 yamt *frm++ = IEEE80211_ELEMID_XRATES; 2283 1.2.2.2 yamt *frm++ = nrates; 2284 1.2.2.2 yamt memcpy(frm, rs->rs_rates + IEEE80211_RATE_SIZE, nrates); 2285 1.2.2.2 yamt frm += nrates; 2286 1.2.2.2 yamt } 2287 1.2.2.2 yamt 2288 1.2.2.2 yamt /* add optionnal IE (usually an RSN IE) */ 2289 1.2.2.2 yamt if (ic->ic_opt_ie != NULL) { 2290 1.2.2.2 yamt memcpy(frm, ic->ic_opt_ie, ic->ic_opt_ie_len); 2291 1.2.2.2 yamt frm += ic->ic_opt_ie_len; 2292 1.2.2.2 yamt } 2293 1.2.2.2 yamt 2294 1.2.2.2 yamt /* setup length of probe request */ 2295 1.2.2.2 yamt hdr->pbrlen = htole16(frm - (uint8_t *)wh); 2296 1.2.2.2 yamt 2297 1.2.2.2 yamt chan = (struct wpi_scan_chan *)frm; 2298 1.2.2.2 yamt for (c = &ic->ic_channels[1]; 2299 1.2.2.2 yamt c <= &ic->ic_channels[IEEE80211_CHAN_MAX]; c++) { 2300 1.2.2.2 yamt if ((c->ic_flags & flags) != flags) 2301 1.2.2.2 yamt continue; 2302 1.2.2.2 yamt 2303 1.2.2.2 yamt chan->chan = ieee80211_chan2ieee(ic, c); 2304 1.2.2.2 yamt chan->flags = (c->ic_flags & IEEE80211_CHAN_PASSIVE) ? 2305 1.2.2.2 yamt 0 : WPI_CHAN_ACTIVE; 2306 1.2.2.2 yamt chan->magic = htole16(0x62ab); 2307 1.2.2.2 yamt if (IEEE80211_IS_CHAN_5GHZ(c)) { 2308 1.2.2.2 yamt chan->active = htole16(10); 2309 1.2.2.2 yamt chan->passive = htole16(110); 2310 1.2.2.2 yamt } else { 2311 1.2.2.2 yamt chan->active = htole16(20); 2312 1.2.2.2 yamt chan->passive = htole16(120); 2313 1.2.2.2 yamt } 2314 1.2.2.2 yamt hdr->nchan++; 2315 1.2.2.2 yamt chan++; 2316 1.2.2.2 yamt 2317 1.2.2.2 yamt frm += sizeof (struct wpi_scan_chan); 2318 1.2.2.2 yamt } 2319 1.2.2.2 yamt 2320 1.2.2.2 yamt hdr->len = hdr->nchan * sizeof (struct wpi_scan_chan); 2321 1.2.2.2 yamt pktlen = frm - mtod(data->m, uint8_t *); 2322 1.2.2.2 yamt 2323 1.2.2.2 yamt error = bus_dmamap_load(sc->sc_dmat, data->map, cmd, pktlen, 2324 1.2.2.2 yamt NULL, BUS_DMA_NOWAIT); 2325 1.2.2.2 yamt if (error) { 2326 1.2.2.2 yamt aprint_error("%s: could not map scan command\n", 2327 1.2.2.2 yamt sc->sc_dev.dv_xname); 2328 1.2.2.2 yamt m_freem(data->m); 2329 1.2.2.2 yamt data->m = NULL; 2330 1.2.2.2 yamt return error; 2331 1.2.2.2 yamt } 2332 1.2.2.2 yamt 2333 1.2.2.2 yamt desc->flags = htole32(WPI_PAD32(pktlen) << 28 | 1 << 24); 2334 1.2.2.2 yamt desc->segs[0].addr = htole32(data->map->dm_segs[0].ds_addr); 2335 1.2.2.2 yamt desc->segs[0].len = htole32(data->map->dm_segs[0].ds_len); 2336 1.2.2.2 yamt 2337 1.2.2.2 yamt /* kick cmd ring */ 2338 1.2.2.2 yamt ring->cur = (ring->cur + 1) % WPI_CMD_RING_COUNT; 2339 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_WIDX, ring->qid << 8 | ring->cur); 2340 1.2.2.2 yamt 2341 1.2.2.2 yamt return 0; /* will be notified async. of failure/success */ 2342 1.2.2.2 yamt } 2343 1.2.2.2 yamt 2344 1.2.2.2 yamt static int 2345 1.2.2.2 yamt wpi_config(struct wpi_softc *sc) 2346 1.2.2.2 yamt { 2347 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 2348 1.2.2.2 yamt struct ifnet *ifp = ic->ic_ifp; 2349 1.2.2.2 yamt struct wpi_txpower txpower; 2350 1.2.2.2 yamt struct wpi_power power; 2351 1.2.2.2 yamt struct wpi_bluetooth bluetooth; 2352 1.2.2.2 yamt struct wpi_node node; 2353 1.2.2.2 yamt int error; 2354 1.2.2.2 yamt 2355 1.2.2.2 yamt /* set Tx power for 2.4GHz channels (values read from EEPROM) */ 2356 1.2.2.2 yamt memset(&txpower, 0, sizeof txpower); 2357 1.2.2.2 yamt memcpy(txpower.pwr1, sc->pwr1, 14 * sizeof (uint16_t)); 2358 1.2.2.2 yamt memcpy(txpower.pwr2, sc->pwr2, 14 * sizeof (uint16_t)); 2359 1.2.2.2 yamt error = wpi_cmd(sc, WPI_CMD_TXPOWER, &txpower, sizeof txpower, 0); 2360 1.2.2.2 yamt if (error != 0) { 2361 1.2.2.2 yamt aprint_error("%s: could not set txpower\n", 2362 1.2.2.2 yamt sc->sc_dev.dv_xname); 2363 1.2.2.2 yamt return error; 2364 1.2.2.2 yamt } 2365 1.2.2.2 yamt 2366 1.2.2.2 yamt /* set power mode */ 2367 1.2.2.2 yamt memset(&power, 0, sizeof power); 2368 1.2.2.2 yamt power.flags = htole32(0x8); /* XXX */ 2369 1.2.2.2 yamt error = wpi_cmd(sc, WPI_CMD_SET_POWER_MODE, &power, sizeof power, 0); 2370 1.2.2.2 yamt if (error != 0) { 2371 1.2.2.2 yamt aprint_error("%s: could not set power mode\n", 2372 1.2.2.2 yamt sc->sc_dev.dv_xname); 2373 1.2.2.2 yamt return error; 2374 1.2.2.2 yamt } 2375 1.2.2.2 yamt 2376 1.2.2.2 yamt /* configure bluetooth coexistence */ 2377 1.2.2.2 yamt memset(&bluetooth, 0, sizeof bluetooth); 2378 1.2.2.2 yamt bluetooth.flags = 3; 2379 1.2.2.2 yamt bluetooth.lead = 0xaa; 2380 1.2.2.2 yamt bluetooth.kill = 1; 2381 1.2.2.2 yamt error = wpi_cmd(sc, WPI_CMD_BLUETOOTH, &bluetooth, sizeof bluetooth, 2382 1.2.2.2 yamt 0); 2383 1.2.2.2 yamt if (error != 0) { 2384 1.2.2.2 yamt aprint_error( 2385 1.2.2.2 yamt "%s: could not configure bluetooth coexistence\n", 2386 1.2.2.2 yamt sc->sc_dev.dv_xname); 2387 1.2.2.2 yamt return error; 2388 1.2.2.2 yamt } 2389 1.2.2.2 yamt 2390 1.2.2.2 yamt /* configure adapter */ 2391 1.2.2.2 yamt memset(&sc->config, 0, sizeof (struct wpi_config)); 2392 1.2.2.2 yamt IEEE80211_ADDR_COPY(ic->ic_myaddr, LLADDR(ifp->if_sadl)); 2393 1.2.2.2 yamt IEEE80211_ADDR_COPY(sc->config.myaddr, ic->ic_myaddr); 2394 1.2.2.2 yamt /*set default channel*/ 2395 1.2.2.2 yamt sc->config.chan = ieee80211_chan2ieee(ic, ic->ic_ibss_chan); 2396 1.2.2.2 yamt sc->config.flags = htole32(WPI_CONFIG_TSF); 2397 1.2.2.2 yamt if (IEEE80211_IS_CHAN_2GHZ(ic->ic_ibss_chan)) { 2398 1.2.2.2 yamt sc->config.flags |= htole32(WPI_CONFIG_AUTO | 2399 1.2.2.2 yamt WPI_CONFIG_24GHZ); 2400 1.2.2.2 yamt } 2401 1.2.2.2 yamt sc->config.filter = 0; 2402 1.2.2.2 yamt switch (ic->ic_opmode) { 2403 1.2.2.2 yamt case IEEE80211_M_STA: 2404 1.2.2.2 yamt sc->config.mode = WPI_MODE_STA; 2405 1.2.2.2 yamt sc->config.filter |= htole32(WPI_FILTER_MULTICAST); 2406 1.2.2.2 yamt break; 2407 1.2.2.2 yamt case IEEE80211_M_IBSS: 2408 1.2.2.2 yamt case IEEE80211_M_AHDEMO: 2409 1.2.2.2 yamt sc->config.mode = WPI_MODE_IBSS; 2410 1.2.2.2 yamt break; 2411 1.2.2.2 yamt case IEEE80211_M_HOSTAP: 2412 1.2.2.2 yamt sc->config.mode = WPI_MODE_HOSTAP; 2413 1.2.2.2 yamt break; 2414 1.2.2.2 yamt case IEEE80211_M_MONITOR: 2415 1.2.2.2 yamt sc->config.mode = WPI_MODE_MONITOR; 2416 1.2.2.2 yamt sc->config.filter |= htole32(WPI_FILTER_MULTICAST | 2417 1.2.2.2 yamt WPI_FILTER_CTL | WPI_FILTER_PROMISC); 2418 1.2.2.2 yamt break; 2419 1.2.2.2 yamt } 2420 1.2.2.2 yamt sc->config.cck_mask = 0x0f; /* not yet negotiated */ 2421 1.2.2.2 yamt sc->config.ofdm_mask = 0xff; /* not yet negotiated */ 2422 1.2.2.2 yamt error = wpi_cmd(sc, WPI_CMD_CONFIGURE, &sc->config, 2423 1.2.2.2 yamt sizeof (struct wpi_config), 0); 2424 1.2.2.2 yamt if (error != 0) { 2425 1.2.2.2 yamt aprint_error("%s: configure command failed\n", 2426 1.2.2.2 yamt sc->sc_dev.dv_xname); 2427 1.2.2.2 yamt return error; 2428 1.2.2.2 yamt } 2429 1.2.2.2 yamt 2430 1.2.2.2 yamt /* add broadcast node */ 2431 1.2.2.2 yamt memset(&node, 0, sizeof node); 2432 1.2.2.2 yamt IEEE80211_ADDR_COPY(node.bssid, etherbroadcastaddr); 2433 1.2.2.2 yamt node.id = WPI_ID_BROADCAST; 2434 1.2.2.2 yamt node.rate = wpi_plcp_signal(2); 2435 1.2.2.2 yamt error = wpi_cmd(sc, WPI_CMD_ADD_NODE, &node, sizeof node, 0); 2436 1.2.2.2 yamt if (error != 0) { 2437 1.2.2.2 yamt aprint_error("%s: could not add broadcast node\n", 2438 1.2.2.2 yamt sc->sc_dev.dv_xname); 2439 1.2.2.2 yamt return error; 2440 1.2.2.2 yamt } 2441 1.2.2.2 yamt 2442 1.2.2.2 yamt return 0; 2443 1.2.2.2 yamt } 2444 1.2.2.2 yamt 2445 1.2.2.2 yamt static void 2446 1.2.2.2 yamt wpi_stop_master(struct wpi_softc *sc) 2447 1.2.2.2 yamt { 2448 1.2.2.2 yamt uint32_t tmp; 2449 1.2.2.2 yamt int ntries; 2450 1.2.2.2 yamt 2451 1.2.2.2 yamt tmp = WPI_READ(sc, WPI_RESET); 2452 1.2.2.2 yamt WPI_WRITE(sc, WPI_RESET, tmp | WPI_STOP_MASTER); 2453 1.2.2.2 yamt 2454 1.2.2.2 yamt tmp = WPI_READ(sc, WPI_GPIO_CTL); 2455 1.2.2.2 yamt if ((tmp & WPI_GPIO_PWR_STATUS) == WPI_GPIO_PWR_SLEEP) 2456 1.2.2.2 yamt return; /* already asleep */ 2457 1.2.2.2 yamt 2458 1.2.2.2 yamt for (ntries = 0; ntries < 100; ntries++) { 2459 1.2.2.2 yamt if (WPI_READ(sc, WPI_RESET) & WPI_MASTER_DISABLED) 2460 1.2.2.2 yamt break; 2461 1.2.2.2 yamt DELAY(10); 2462 1.2.2.2 yamt } 2463 1.2.2.2 yamt if (ntries == 100) { 2464 1.2.2.2 yamt aprint_error("%s: timeout waiting for master\n", 2465 1.2.2.2 yamt sc->sc_dev.dv_xname); 2466 1.2.2.2 yamt } 2467 1.2.2.2 yamt } 2468 1.2.2.2 yamt 2469 1.2.2.2 yamt static int 2470 1.2.2.2 yamt wpi_power_up(struct wpi_softc *sc) 2471 1.2.2.2 yamt { 2472 1.2.2.2 yamt uint32_t tmp; 2473 1.2.2.2 yamt int ntries; 2474 1.2.2.2 yamt 2475 1.2.2.2 yamt wpi_mem_lock(sc); 2476 1.2.2.2 yamt tmp = wpi_mem_read(sc, WPI_MEM_POWER); 2477 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_POWER, tmp & ~0x03000000); 2478 1.2.2.2 yamt wpi_mem_unlock(sc); 2479 1.2.2.2 yamt 2480 1.2.2.2 yamt for (ntries = 0; ntries < 5000; ntries++) { 2481 1.2.2.2 yamt if (WPI_READ(sc, WPI_GPIO_STATUS) & WPI_POWERED) 2482 1.2.2.2 yamt break; 2483 1.2.2.2 yamt DELAY(10); 2484 1.2.2.2 yamt } 2485 1.2.2.2 yamt if (ntries == 5000) { 2486 1.2.2.2 yamt aprint_error("%s: timeout waiting for NIC to power up\n", 2487 1.2.2.2 yamt sc->sc_dev.dv_xname); 2488 1.2.2.2 yamt return ETIMEDOUT; 2489 1.2.2.2 yamt } 2490 1.2.2.2 yamt return 0; 2491 1.2.2.2 yamt } 2492 1.2.2.2 yamt 2493 1.2.2.2 yamt static int 2494 1.2.2.2 yamt wpi_reset(struct wpi_softc *sc) 2495 1.2.2.2 yamt { 2496 1.2.2.2 yamt uint32_t tmp; 2497 1.2.2.2 yamt int ntries; 2498 1.2.2.2 yamt 2499 1.2.2.2 yamt /* clear any pending interrupts */ 2500 1.2.2.2 yamt WPI_WRITE(sc, WPI_INTR, 0xffffffff); 2501 1.2.2.2 yamt 2502 1.2.2.2 yamt tmp = WPI_READ(sc, WPI_PLL_CTL); 2503 1.2.2.2 yamt WPI_WRITE(sc, WPI_PLL_CTL, tmp | WPI_PLL_INIT); 2504 1.2.2.2 yamt 2505 1.2.2.2 yamt tmp = WPI_READ(sc, WPI_CHICKEN); 2506 1.2.2.2 yamt WPI_WRITE(sc, WPI_CHICKEN, tmp | WPI_CHICKEN_RXNOLOS); 2507 1.2.2.2 yamt 2508 1.2.2.2 yamt tmp = WPI_READ(sc, WPI_GPIO_CTL); 2509 1.2.2.2 yamt WPI_WRITE(sc, WPI_GPIO_CTL, tmp | WPI_GPIO_INIT); 2510 1.2.2.2 yamt 2511 1.2.2.2 yamt /* wait for clock stabilization */ 2512 1.2.2.2 yamt for (ntries = 0; ntries < 1000; ntries++) { 2513 1.2.2.2 yamt if (WPI_READ(sc, WPI_GPIO_CTL) & WPI_GPIO_CLOCK) 2514 1.2.2.2 yamt break; 2515 1.2.2.2 yamt DELAY(10); 2516 1.2.2.2 yamt } 2517 1.2.2.2 yamt if (ntries == 1000) { 2518 1.2.2.2 yamt aprint_error("%s: timeout waiting for clock stabilization\n", 2519 1.2.2.2 yamt sc->sc_dev.dv_xname); 2520 1.2.2.2 yamt return ETIMEDOUT; 2521 1.2.2.2 yamt } 2522 1.2.2.2 yamt 2523 1.2.2.2 yamt /* initialize EEPROM */ 2524 1.2.2.2 yamt tmp = WPI_READ(sc, WPI_EEPROM_STATUS); 2525 1.2.2.2 yamt if ((tmp & WPI_EEPROM_VERSION) == 0) { 2526 1.2.2.2 yamt aprint_error("%s: EEPROM not found\n", sc->sc_dev.dv_xname); 2527 1.2.2.2 yamt return EIO; 2528 1.2.2.2 yamt } 2529 1.2.2.2 yamt WPI_WRITE(sc, WPI_EEPROM_STATUS, tmp & ~WPI_EEPROM_LOCKED); 2530 1.2.2.2 yamt 2531 1.2.2.2 yamt return 0; 2532 1.2.2.2 yamt } 2533 1.2.2.2 yamt 2534 1.2.2.2 yamt static void 2535 1.2.2.2 yamt wpi_hw_config(struct wpi_softc *sc) 2536 1.2.2.2 yamt { 2537 1.2.2.2 yamt uint16_t val; 2538 1.2.2.2 yamt uint32_t rev, hw; 2539 1.2.2.2 yamt 2540 1.2.2.2 yamt /* voodoo from the Linux "driver".. */ 2541 1.2.2.2 yamt hw = WPI_READ(sc, WPI_HWCONFIG); 2542 1.2.2.2 yamt 2543 1.2.2.2 yamt rev = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_CLASS_REG); 2544 1.2.2.2 yamt rev = PCI_REVISION(rev); 2545 1.2.2.2 yamt if ((rev & 0xc0) == 0x40) 2546 1.2.2.2 yamt hw |= WPI_HW_ALM_MB; 2547 1.2.2.2 yamt else if (!(rev & 0x80)) 2548 1.2.2.2 yamt hw |= WPI_HW_ALM_MM; 2549 1.2.2.2 yamt 2550 1.2.2.2 yamt val = wpi_read_prom_word(sc, WPI_EEPROM_CAPABILITIES); 2551 1.2.2.2 yamt if ((val & 0xff) == 0x80) 2552 1.2.2.2 yamt hw |= WPI_HW_SKU_MRC; 2553 1.2.2.2 yamt 2554 1.2.2.2 yamt val = wpi_read_prom_word(sc, WPI_EEPROM_REVISION); 2555 1.2.2.2 yamt hw &= ~WPI_HW_REV_D; 2556 1.2.2.2 yamt if ((val & 0xf0) == 0xd0) 2557 1.2.2.2 yamt hw |= WPI_HW_REV_D; 2558 1.2.2.2 yamt 2559 1.2.2.2 yamt val = wpi_read_prom_word(sc, WPI_EEPROM_TYPE); 2560 1.2.2.2 yamt if ((val & 0xff) > 1) 2561 1.2.2.2 yamt hw |= WPI_HW_TYPE_B; 2562 1.2.2.2 yamt 2563 1.2.2.2 yamt DPRINTF(("setting h/w config %x\n", hw)); 2564 1.2.2.2 yamt WPI_WRITE(sc, WPI_HWCONFIG, hw); 2565 1.2.2.2 yamt } 2566 1.2.2.2 yamt 2567 1.2.2.2 yamt static int 2568 1.2.2.2 yamt wpi_init(struct ifnet *ifp) 2569 1.2.2.2 yamt { 2570 1.2.2.2 yamt struct wpi_softc *sc = ifp->if_softc; 2571 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 2572 1.2.2.2 yamt struct wpi_firmware_hdr hdr; 2573 1.2.2.2 yamt const char *boot, *text, *data; 2574 1.2.2.2 yamt firmware_handle_t fw; 2575 1.2.2.2 yamt u_char *dfw; 2576 1.2.2.2 yamt off_t size; 2577 1.2.2.2 yamt size_t wsize; 2578 1.2.2.2 yamt uint32_t tmp; 2579 1.2.2.2 yamt int qid, ntries, error; 2580 1.2.2.2 yamt 2581 1.2.2.2 yamt (void)wpi_reset(sc); 2582 1.2.2.2 yamt 2583 1.2.2.2 yamt wpi_mem_lock(sc); 2584 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_CLOCK1, 0xa00); 2585 1.2.2.2 yamt DELAY(20); 2586 1.2.2.2 yamt tmp = wpi_mem_read(sc, WPI_MEM_PCIDEV); 2587 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_PCIDEV, tmp | 0x800); 2588 1.2.2.2 yamt wpi_mem_unlock(sc); 2589 1.2.2.2 yamt 2590 1.2.2.2 yamt (void)wpi_power_up(sc); 2591 1.2.2.2 yamt wpi_hw_config(sc); 2592 1.2.2.2 yamt 2593 1.2.2.2 yamt /* init Rx ring */ 2594 1.2.2.2 yamt wpi_mem_lock(sc); 2595 1.2.2.2 yamt WPI_WRITE(sc, WPI_RX_BASE, sc->rxq.desc_dma.paddr); 2596 1.2.2.2 yamt WPI_WRITE(sc, WPI_RX_RIDX_PTR, sc->shared_dma.paddr + 2597 1.2.2.2 yamt offsetof(struct wpi_shared, next)); 2598 1.2.2.2 yamt WPI_WRITE(sc, WPI_RX_WIDX, (WPI_RX_RING_COUNT - 1) & ~7); 2599 1.2.2.2 yamt WPI_WRITE(sc, WPI_RX_CONFIG, 0xa9601010); 2600 1.2.2.2 yamt wpi_mem_unlock(sc); 2601 1.2.2.2 yamt 2602 1.2.2.2 yamt /* init Tx rings */ 2603 1.2.2.2 yamt wpi_mem_lock(sc); 2604 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_MODE, 2); /* bypass mode */ 2605 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_RA, 1); /* enable RA0 */ 2606 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_TXCFG, 0x3f); /* enable all 6 Tx rings */ 2607 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_BYPASS1, 0x10000); 2608 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_BYPASS2, 0x30002); 2609 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_MAGIC4, 4); 2610 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_MAGIC5, 5); 2611 1.2.2.2 yamt 2612 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_BASE_PTR, sc->shared_dma.paddr); 2613 1.2.2.2 yamt WPI_WRITE(sc, WPI_MSG_CONFIG, 0xffff05a5); 2614 1.2.2.2 yamt 2615 1.2.2.2 yamt for (qid = 0; qid < 6; qid++) { 2616 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_CTL(qid), 0); 2617 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_BASE(qid), 0); 2618 1.2.2.2 yamt WPI_WRITE(sc, WPI_TX_CONFIG(qid), 0x80200008); 2619 1.2.2.2 yamt } 2620 1.2.2.2 yamt wpi_mem_unlock(sc); 2621 1.2.2.2 yamt 2622 1.2.2.2 yamt /* clear "radio off" and "disable command" bits (reversed logic) */ 2623 1.2.2.2 yamt WPI_WRITE(sc, WPI_UCODE_CLR, WPI_RADIO_OFF); 2624 1.2.2.2 yamt WPI_WRITE(sc, WPI_UCODE_CLR, WPI_DISABLE_CMD); 2625 1.2.2.2 yamt 2626 1.2.2.2 yamt /* clear any pending interrupts */ 2627 1.2.2.2 yamt WPI_WRITE(sc, WPI_INTR, 0xffffffff); 2628 1.2.2.2 yamt /* enable interrupts */ 2629 1.2.2.2 yamt WPI_WRITE(sc, WPI_MASK, WPI_INTR_MASK); 2630 1.2.2.2 yamt 2631 1.2.2.2 yamt if ((error = firmware_open("if_wpi", "ipw3945.ucode", &fw)) != 0) { 2632 1.2.2.2 yamt aprint_error("%s: could not read firmware file\n", 2633 1.2.2.2 yamt sc->sc_dev.dv_xname); 2634 1.2.2.2 yamt goto fail1; 2635 1.2.2.2 yamt } 2636 1.2.2.2 yamt 2637 1.2.2.2 yamt size = firmware_get_size(fw); 2638 1.2.2.2 yamt 2639 1.2.2.2 yamt if (size < sizeof (struct wpi_firmware_hdr)) { 2640 1.2.2.2 yamt aprint_error("%s: firmware file too short\n", 2641 1.2.2.2 yamt sc->sc_dev.dv_xname); 2642 1.2.2.2 yamt error = EINVAL; 2643 1.2.2.2 yamt goto fail2; 2644 1.2.2.2 yamt } 2645 1.2.2.2 yamt 2646 1.2.2.2 yamt if ((error = firmware_read(fw, 0, &hdr, 2647 1.2.2.2 yamt sizeof (struct wpi_firmware_hdr))) != 0) { 2648 1.2.2.2 yamt aprint_error("%s: can't get firmware header\n", 2649 1.2.2.2 yamt sc->sc_dev.dv_xname); 2650 1.2.2.2 yamt goto fail2; 2651 1.2.2.2 yamt } 2652 1.2.2.2 yamt 2653 1.2.2.2 yamt wsize = sizeof (struct wpi_firmware_hdr) + le32toh(hdr.textsz) + 2654 1.2.2.2 yamt le32toh(hdr.datasz) + le32toh(hdr.bootsz); 2655 1.2.2.2 yamt 2656 1.2.2.2 yamt if (size < wsize) { 2657 1.2.2.2 yamt aprint_error("%s: fw file too short: should be %d bytes\n", 2658 1.2.2.2 yamt sc->sc_dev.dv_xname, wsize); 2659 1.2.2.2 yamt error = EINVAL; 2660 1.2.2.2 yamt goto fail2; 2661 1.2.2.2 yamt } 2662 1.2.2.2 yamt 2663 1.2.2.2 yamt dfw = firmware_malloc(size); 2664 1.2.2.2 yamt if (dfw == NULL) { 2665 1.2.2.2 yamt aprint_error("%s: not enough memory to stock firmware\n", 2666 1.2.2.2 yamt sc->sc_dev.dv_xname); 2667 1.2.2.2 yamt error = ENOMEM; 2668 1.2.2.2 yamt goto fail2; 2669 1.2.2.2 yamt } 2670 1.2.2.2 yamt 2671 1.2.2.2 yamt if ((error = firmware_read(fw, 0, dfw, size)) != 0) { 2672 1.2.2.2 yamt aprint_error("%s: can't get firmware\n", 2673 1.2.2.2 yamt sc->sc_dev.dv_xname); 2674 1.2.2.2 yamt goto fail2; 2675 1.2.2.2 yamt } 2676 1.2.2.2 yamt 2677 1.2.2.2 yamt /* firmware image layout: |HDR|<--TEXT-->|<--DATA-->|<--BOOT-->| */ 2678 1.2.2.2 yamt text = dfw + sizeof (struct wpi_firmware_hdr); 2679 1.2.2.2 yamt data = text + le32toh(hdr.textsz); 2680 1.2.2.2 yamt boot = data + le32toh(hdr.datasz); 2681 1.2.2.2 yamt 2682 1.2.2.2 yamt /* load firmware boot code into NIC */ 2683 1.2.2.2 yamt error = wpi_load_microcode(sc, boot, le32toh(hdr.bootsz)); 2684 1.2.2.2 yamt if (error != 0) { 2685 1.2.2.2 yamt aprint_error("%s: could not load microcode\n", sc->sc_dev.dv_xname); 2686 1.2.2.2 yamt goto fail3; 2687 1.2.2.2 yamt } 2688 1.2.2.2 yamt 2689 1.2.2.2 yamt /* load firmware .text segment into NIC */ 2690 1.2.2.2 yamt error = wpi_load_firmware(sc, WPI_FW_TEXT, text, le32toh(hdr.textsz)); 2691 1.2.2.2 yamt if (error != 0) { 2692 1.2.2.2 yamt aprint_error("%s: could not load firmware\n", 2693 1.2.2.2 yamt sc->sc_dev.dv_xname); 2694 1.2.2.2 yamt goto fail3; 2695 1.2.2.2 yamt } 2696 1.2.2.2 yamt 2697 1.2.2.2 yamt /* load firmware .data segment into NIC */ 2698 1.2.2.2 yamt error = wpi_load_firmware(sc, WPI_FW_DATA, data, le32toh(hdr.datasz)); 2699 1.2.2.2 yamt if (error != 0) { 2700 1.2.2.2 yamt aprint_error("%s: could not load firmware\n", 2701 1.2.2.2 yamt sc->sc_dev.dv_xname); 2702 1.2.2.2 yamt goto fail3; 2703 1.2.2.2 yamt } 2704 1.2.2.2 yamt 2705 1.2.2.2 yamt firmware_free(dfw, 0); 2706 1.2.2.2 yamt firmware_close(fw); 2707 1.2.2.2 yamt 2708 1.2.2.2 yamt /* now press "execute" ;-) */ 2709 1.2.2.2 yamt tmp = WPI_READ(sc, WPI_RESET); 2710 1.2.2.2 yamt tmp &= ~(WPI_MASTER_DISABLED | WPI_STOP_MASTER | WPI_NEVO_RESET); 2711 1.2.2.2 yamt WPI_WRITE(sc, WPI_RESET, tmp); 2712 1.2.2.2 yamt 2713 1.2.2.2 yamt /* ..and wait at most one second for adapter to initialize */ 2714 1.2.2.2 yamt if ((error = tsleep(sc, PCATCH, "wpiinit", hz)) != 0) { 2715 1.2.2.2 yamt /* this isn't what was supposed to happen.. */ 2716 1.2.2.2 yamt aprint_error("%s: timeout waiting for adapter to initialize\n", 2717 1.2.2.2 yamt sc->sc_dev.dv_xname); 2718 1.2.2.2 yamt goto fail1; 2719 1.2.2.2 yamt } 2720 1.2.2.2 yamt 2721 1.2.2.2 yamt /* wait for thermal sensors to calibrate */ 2722 1.2.2.2 yamt for (ntries = 0; ntries < 1000; ntries++) { 2723 1.2.2.2 yamt if (WPI_READ(sc, WPI_TEMPERATURE) != 0) 2724 1.2.2.2 yamt break; 2725 1.2.2.2 yamt DELAY(10); 2726 1.2.2.2 yamt } 2727 1.2.2.2 yamt if (ntries == 1000) { 2728 1.2.2.2 yamt aprint_error("%s: timeout waiting for thermal sensors calibration\n", 2729 1.2.2.2 yamt sc->sc_dev.dv_xname); 2730 1.2.2.2 yamt error = ETIMEDOUT; 2731 1.2.2.2 yamt goto fail1; 2732 1.2.2.2 yamt } 2733 1.2.2.2 yamt DPRINTF(("temperature %d\n", (int)WPI_READ(sc, WPI_TEMPERATURE))); 2734 1.2.2.2 yamt 2735 1.2.2.2 yamt if ((error = wpi_config(sc)) != 0) { 2736 1.2.2.2 yamt aprint_error("%s: could not configure device\n", 2737 1.2.2.2 yamt sc->sc_dev.dv_xname); 2738 1.2.2.2 yamt goto fail1; 2739 1.2.2.2 yamt } 2740 1.2.2.2 yamt 2741 1.2.2.2 yamt ifp->if_flags &= ~IFF_OACTIVE; 2742 1.2.2.2 yamt ifp->if_flags |= IFF_RUNNING; 2743 1.2.2.2 yamt 2744 1.2.2.2 yamt if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2745 1.2.2.2 yamt if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2746 1.2.2.2 yamt ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2747 1.2.2.2 yamt } 2748 1.2.2.2 yamt else 2749 1.2.2.2 yamt ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2750 1.2.2.2 yamt 2751 1.2.2.2 yamt return 0; 2752 1.2.2.2 yamt 2753 1.2.2.2 yamt fail3: firmware_free(dfw, 0); 2754 1.2.2.2 yamt fail2: firmware_close(fw); 2755 1.2.2.2 yamt fail1: wpi_stop(ifp, 1); 2756 1.2.2.2 yamt return error; 2757 1.2.2.2 yamt } 2758 1.2.2.2 yamt 2759 1.2.2.2 yamt 2760 1.2.2.2 yamt static void 2761 1.2.2.2 yamt wpi_stop(struct ifnet *ifp, int disable) 2762 1.2.2.2 yamt { 2763 1.2.2.2 yamt struct wpi_softc *sc = ifp->if_softc; 2764 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 2765 1.2.2.2 yamt uint32_t tmp; 2766 1.2.2.2 yamt int ac; 2767 1.2.2.2 yamt 2768 1.2.2.2 yamt ifp->if_timer = sc->sc_tx_timer = 0; 2769 1.2.2.2 yamt ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2770 1.2.2.2 yamt 2771 1.2.2.2 yamt ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2772 1.2.2.2 yamt 2773 1.2.2.2 yamt /* disable interrupts */ 2774 1.2.2.2 yamt WPI_WRITE(sc, WPI_MASK, 0); 2775 1.2.2.2 yamt WPI_WRITE(sc, WPI_INTR, WPI_INTR_MASK); 2776 1.2.2.2 yamt WPI_WRITE(sc, WPI_INTR_STATUS, 0xff); 2777 1.2.2.2 yamt WPI_WRITE(sc, WPI_INTR_STATUS, 0x00070000); 2778 1.2.2.2 yamt 2779 1.2.2.2 yamt wpi_mem_lock(sc); 2780 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_MODE, 0); 2781 1.2.2.2 yamt wpi_mem_unlock(sc); 2782 1.2.2.2 yamt 2783 1.2.2.2 yamt /* reset all Tx rings */ 2784 1.2.2.2 yamt for (ac = 0; ac < 4; ac++) 2785 1.2.2.2 yamt wpi_reset_tx_ring(sc, &sc->txq[ac]); 2786 1.2.2.2 yamt wpi_reset_tx_ring(sc, &sc->cmdq); 2787 1.2.2.2 yamt wpi_reset_tx_ring(sc, &sc->svcq); 2788 1.2.2.2 yamt 2789 1.2.2.2 yamt /* reset Rx ring */ 2790 1.2.2.2 yamt wpi_reset_rx_ring(sc, &sc->rxq); 2791 1.2.2.2 yamt 2792 1.2.2.2 yamt wpi_mem_lock(sc); 2793 1.2.2.2 yamt wpi_mem_write(sc, WPI_MEM_CLOCK2, 0x200); 2794 1.2.2.2 yamt wpi_mem_unlock(sc); 2795 1.2.2.2 yamt 2796 1.2.2.2 yamt DELAY(5); 2797 1.2.2.2 yamt 2798 1.2.2.2 yamt wpi_stop_master(sc); 2799 1.2.2.2 yamt 2800 1.2.2.2 yamt tmp = WPI_READ(sc, WPI_RESET); 2801 1.2.2.2 yamt WPI_WRITE(sc, WPI_RESET, tmp | WPI_SW_RESET); 2802 1.2.2.2 yamt } 2803 1.2.2.2 yamt 2804 1.2.2.2 yamt /*- 2805 1.2.2.2 yamt * Naive implementation of the Adaptive Multi Rate Retry algorithm: 2806 1.2.2.2 yamt * "IEEE 802.11 Rate Adaptation: A Practical Approach" 2807 1.2.2.2 yamt * Mathieu Lacage, Hossein Manshaei, Thierry Turletti 2808 1.2.2.2 yamt * INRIA Sophia - Projet Planete 2809 1.2.2.2 yamt * http://www-sop.inria.fr/rapports/sophia/RR-5208.html 2810 1.2.2.2 yamt */ 2811 1.2.2.2 yamt #define is_success(amrr) \ 2812 1.2.2.2 yamt ((amrr)->retrycnt < (amrr)->txcnt / 10) 2813 1.2.2.2 yamt #define is_failure(amrr) \ 2814 1.2.2.2 yamt ((amrr)->retrycnt > (amrr)->txcnt / 3) 2815 1.2.2.2 yamt #define is_enough(amrr) \ 2816 1.2.2.2 yamt ((amrr)->txcnt > 10) 2817 1.2.2.2 yamt #define is_min_rate(ni) \ 2818 1.2.2.2 yamt ((ni)->ni_txrate == 0) 2819 1.2.2.2 yamt #define is_max_rate(ni) \ 2820 1.2.2.2 yamt ((ni)->ni_txrate == (ni)->ni_rates.rs_nrates - 1) 2821 1.2.2.2 yamt #define increase_rate(ni) \ 2822 1.2.2.2 yamt ((ni)->ni_txrate++) 2823 1.2.2.2 yamt #define decrease_rate(ni) \ 2824 1.2.2.2 yamt ((ni)->ni_txrate--) 2825 1.2.2.2 yamt #define reset_cnt(amrr) \ 2826 1.2.2.2 yamt do { (amrr)->txcnt = (amrr)->retrycnt = 0; } while (0) 2827 1.2.2.2 yamt 2828 1.2.2.2 yamt #define WPI_AMRR_MIN_SUCCESS_THRESHOLD 1 2829 1.2.2.2 yamt #define WPI_AMRR_MAX_SUCCESS_THRESHOLD 15 2830 1.2.2.2 yamt 2831 1.2.2.2 yamt /* XXX should reset all nodes on S_INIT */ 2832 1.2.2.2 yamt static void 2833 1.2.2.2 yamt wpi_amrr_init(struct wpi_amrr *amrr) 2834 1.2.2.2 yamt { 2835 1.2.2.2 yamt struct ieee80211_node *ni = &amrr->ni; 2836 1.2.2.2 yamt int i; 2837 1.2.2.2 yamt 2838 1.2.2.2 yamt amrr->success = 0; 2839 1.2.2.2 yamt amrr->recovery = 0; 2840 1.2.2.2 yamt amrr->txcnt = amrr->retrycnt = 0; 2841 1.2.2.2 yamt amrr->success_threshold = WPI_AMRR_MIN_SUCCESS_THRESHOLD; 2842 1.2.2.2 yamt 2843 1.2.2.2 yamt /* set rate to some reasonable initial value */ 2844 1.2.2.2 yamt ni = &amrr->ni; 2845 1.2.2.2 yamt for (i = ni->ni_rates.rs_nrates - 1; 2846 1.2.2.2 yamt i > 0 && (ni->ni_rates.rs_rates[i] & IEEE80211_RATE_VAL) > 72; 2847 1.2.2.2 yamt i--); 2848 1.2.2.2 yamt 2849 1.2.2.2 yamt ni->ni_txrate = i; 2850 1.2.2.2 yamt } 2851 1.2.2.2 yamt 2852 1.2.2.2 yamt static void 2853 1.2.2.2 yamt wpi_amrr_timeout(void *arg) 2854 1.2.2.2 yamt { 2855 1.2.2.2 yamt struct wpi_softc *sc = arg; 2856 1.2.2.2 yamt struct ieee80211com *ic = &sc->sc_ic; 2857 1.2.2.2 yamt 2858 1.2.2.2 yamt if (ic->ic_opmode == IEEE80211_M_STA) 2859 1.2.2.2 yamt wpi_amrr_ratectl(NULL, ic->ic_bss); 2860 1.2.2.2 yamt else 2861 1.2.2.2 yamt ieee80211_iterate_nodes(&ic->ic_sta, wpi_amrr_ratectl, NULL); 2862 1.2.2.2 yamt 2863 1.2.2.2 yamt callout_reset(&sc->amrr_ch, hz, wpi_amrr_timeout, sc); 2864 1.2.2.2 yamt } 2865 1.2.2.2 yamt 2866 1.2.2.2 yamt /* ARGSUSED */ 2867 1.2.2.2 yamt static void 2868 1.2.2.2 yamt wpi_amrr_ratectl(void *arg, struct ieee80211_node *ni) 2869 1.2.2.2 yamt { 2870 1.2.2.2 yamt struct wpi_amrr *amrr = (struct wpi_amrr *)ni; 2871 1.2.2.2 yamt int need_change = 0; 2872 1.2.2.2 yamt 2873 1.2.2.2 yamt if (is_success(amrr) && is_enough(amrr)) { 2874 1.2.2.2 yamt amrr->success++; 2875 1.2.2.2 yamt if (amrr->success >= amrr->success_threshold && 2876 1.2.2.2 yamt !is_max_rate(ni)) { 2877 1.2.2.2 yamt amrr->recovery = 1; 2878 1.2.2.2 yamt amrr->success = 0; 2879 1.2.2.2 yamt increase_rate(ni); 2880 1.2.2.2 yamt DPRINTFN(2, ("AMRR increasing rate %d (txcnt=%d " 2881 1.2.2.2 yamt "retrycnt=%d)\n", ni->ni_txrate, amrr->txcnt, 2882 1.2.2.2 yamt amrr->retrycnt)); 2883 1.2.2.2 yamt need_change = 1; 2884 1.2.2.2 yamt } else { 2885 1.2.2.2 yamt amrr->recovery = 0; 2886 1.2.2.2 yamt } 2887 1.2.2.2 yamt } else if (is_failure(amrr)) { 2888 1.2.2.2 yamt amrr->success = 0; 2889 1.2.2.2 yamt if (!is_min_rate(ni)) { 2890 1.2.2.2 yamt if (amrr->recovery) { 2891 1.2.2.2 yamt amrr->success_threshold *= 2; 2892 1.2.2.2 yamt if (amrr->success_threshold > 2893 1.2.2.2 yamt WPI_AMRR_MAX_SUCCESS_THRESHOLD) 2894 1.2.2.2 yamt amrr->success_threshold = 2895 1.2.2.2 yamt WPI_AMRR_MAX_SUCCESS_THRESHOLD; 2896 1.2.2.2 yamt } else { 2897 1.2.2.2 yamt amrr->success_threshold = 2898 1.2.2.2 yamt WPI_AMRR_MIN_SUCCESS_THRESHOLD; 2899 1.2.2.2 yamt } 2900 1.2.2.2 yamt decrease_rate(ni); 2901 1.2.2.2 yamt DPRINTFN(2, ("AMRR decreasing rate %d (txcnt=%d " 2902 1.2.2.2 yamt "retrycnt=%d)\n", ni->ni_txrate, amrr->txcnt, 2903 1.2.2.2 yamt amrr->retrycnt)); 2904 1.2.2.2 yamt need_change = 1; 2905 1.2.2.2 yamt } 2906 1.2.2.2 yamt amrr->recovery = 0; /* paper is incorrect */ 2907 1.2.2.2 yamt } 2908 1.2.2.2 yamt 2909 1.2.2.2 yamt if (is_enough(amrr) || need_change) 2910 1.2.2.2 yamt reset_cnt(amrr); 2911 1.2.2.2 yamt } 2912
Indexes created Thu Oct 02 01:09:59 GMT 2025