if_iwi.c revision 149346
1145247Sdamien/* $FreeBSD: head/sys/dev/iwi/if_iwi.c 149346 2005-08-21 09:52:18Z damien $ */ 2145247Sdamien 3145247Sdamien/*- 4145247Sdamien * Copyright (c) 2004, 2005 5145247Sdamien * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved. 6145247Sdamien * 7145247Sdamien * Redistribution and use in source and binary forms, with or without 8145247Sdamien * modification, are permitted provided that the following conditions 9145247Sdamien * are met: 10145247Sdamien * 1. Redistributions of source code must retain the above copyright 11145247Sdamien * notice unmodified, this list of conditions, and the following 12145247Sdamien * disclaimer. 13145247Sdamien * 2. Redistributions in binary form must reproduce the above copyright 14145247Sdamien * notice, this list of conditions and the following disclaimer in the 15145247Sdamien * documentation and/or other materials provided with the distribution. 16145247Sdamien * 17145247Sdamien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18145247Sdamien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19145247Sdamien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20145247Sdamien * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21145247Sdamien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22145247Sdamien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23145247Sdamien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24145247Sdamien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25145247Sdamien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26145247Sdamien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27145247Sdamien * SUCH DAMAGE. 28145247Sdamien */ 29145247Sdamien 30145247Sdamien#include <sys/cdefs.h> 31145247Sdamien__FBSDID("$FreeBSD: head/sys/dev/iwi/if_iwi.c 149346 2005-08-21 09:52:18Z damien $"); 32145247Sdamien 33145247Sdamien/*- 34145247Sdamien * Intel(R) PRO/Wireless 2200BG/2225BG/2915ABG driver 35145247Sdamien * http://www.intel.com/network/connectivity/products/wireless/prowireless_mobile.htm 36145247Sdamien */ 37145247Sdamien 38145247Sdamien#include <sys/param.h> 39145247Sdamien#include <sys/sysctl.h> 40145247Sdamien#include <sys/sockio.h> 41145247Sdamien#include <sys/mbuf.h> 42145247Sdamien#include <sys/kernel.h> 43145247Sdamien#include <sys/socket.h> 44145247Sdamien#include <sys/systm.h> 45145247Sdamien#include <sys/malloc.h> 46145247Sdamien#include <sys/module.h> 47145247Sdamien#include <sys/bus.h> 48145247Sdamien#include <sys/endian.h> 49145247Sdamien 50145247Sdamien#include <machine/bus.h> 51145247Sdamien#include <machine/resource.h> 52145247Sdamien#include <machine/clock.h> 53145247Sdamien#include <sys/rman.h> 54145247Sdamien 55145247Sdamien#include <dev/pci/pcireg.h> 56145247Sdamien#include <dev/pci/pcivar.h> 57145247Sdamien 58145247Sdamien#include <net/bpf.h> 59145247Sdamien#include <net/if.h> 60145247Sdamien#include <net/if_arp.h> 61145247Sdamien#include <net/ethernet.h> 62145247Sdamien#include <net/if_dl.h> 63145247Sdamien#include <net/if_media.h> 64145247Sdamien#include <net/if_types.h> 65145247Sdamien 66145247Sdamien#include <net80211/ieee80211_var.h> 67145247Sdamien#include <net80211/ieee80211_radiotap.h> 68145247Sdamien 69145247Sdamien#include <netinet/in.h> 70145247Sdamien#include <netinet/in_systm.h> 71145247Sdamien#include <netinet/in_var.h> 72145247Sdamien#include <netinet/ip.h> 73145247Sdamien#include <netinet/if_ether.h> 74145247Sdamien 75145247Sdamien#include <dev/iwi/if_iwireg.h> 76145247Sdamien#include <dev/iwi/if_iwivar.h> 77145247Sdamien 78145247Sdamien#ifdef IWI_DEBUG 79145247Sdamien#define DPRINTF(x) do { if (iwi_debug > 0) printf x; } while (0) 80145247Sdamien#define DPRINTFN(n, x) do { if (iwi_debug >= (n)) printf x; } while (0) 81145247Sdamienint iwi_debug = 0; 82145247SdamienSYSCTL_INT(_debug, OID_AUTO, iwi, CTLFLAG_RW, &iwi_debug, 0, "iwi debug level"); 83145247Sdamien#else 84145247Sdamien#define DPRINTF(x) 85145247Sdamien#define DPRINTFN(n, x) 86145247Sdamien#endif 87145247Sdamien 88145247SdamienMODULE_DEPEND(iwi, pci, 1, 1, 1); 89145247SdamienMODULE_DEPEND(iwi, wlan, 1, 1, 1); 90145247Sdamien 91145247Sdamienstruct iwi_ident { 92145247Sdamien uint16_t vendor; 93145247Sdamien uint16_t device; 94145247Sdamien const char *name; 95145247Sdamien}; 96145247Sdamien 97145247Sdamienstatic const struct iwi_ident iwi_ident_table[] = { 98145247Sdamien { 0x8086, 0x4220, "Intel(R) PRO/Wireless 2200BG" }, 99145247Sdamien { 0x8086, 0x4221, "Intel(R) PRO/Wireless 2225BG" }, 100145247Sdamien { 0x8086, 0x4223, "Intel(R) PRO/Wireless 2915ABG" }, 101145247Sdamien { 0x8086, 0x4224, "Intel(R) PRO/Wireless 2915ABG" }, 102145247Sdamien 103145247Sdamien { 0, 0, NULL } 104145247Sdamien}; 105145247Sdamien 106145247Sdamienstatic void iwi_dma_map_addr(void *, bus_dma_segment_t *, int, int); 107145247Sdamienstatic int iwi_alloc_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *, 108145247Sdamien int); 109145247Sdamienstatic void iwi_reset_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 110145247Sdamienstatic void iwi_free_cmd_ring(struct iwi_softc *, struct iwi_cmd_ring *); 111145247Sdamienstatic int iwi_alloc_tx_ring(struct iwi_softc *, struct iwi_tx_ring *, 112149338Sdamien int, bus_addr_t, bus_addr_t); 113145247Sdamienstatic void iwi_reset_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 114145247Sdamienstatic void iwi_free_tx_ring(struct iwi_softc *, struct iwi_tx_ring *); 115145247Sdamienstatic int iwi_alloc_rx_ring(struct iwi_softc *, struct iwi_rx_ring *, 116145247Sdamien int); 117145247Sdamienstatic void iwi_reset_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 118145247Sdamienstatic void iwi_free_rx_ring(struct iwi_softc *, struct iwi_rx_ring *); 119145247Sdamienstatic int iwi_media_change(struct ifnet *); 120145247Sdamienstatic void iwi_media_status(struct ifnet *, struct ifmediareq *); 121145247Sdamienstatic int iwi_newstate(struct ieee80211com *, enum ieee80211_state, int); 122149338Sdamienstatic int iwi_wme_update(struct ieee80211com *); 123145247Sdamienstatic uint16_t iwi_read_prom_word(struct iwi_softc *, uint8_t); 124145247Sdamienstatic void iwi_fix_channel(struct ieee80211com *, struct mbuf *); 125145247Sdamienstatic void iwi_frame_intr(struct iwi_softc *, struct iwi_rx_data *, int, 126145247Sdamien struct iwi_frame *); 127145247Sdamienstatic void iwi_notification_intr(struct iwi_softc *, struct iwi_notif *); 128145247Sdamienstatic void iwi_rx_intr(struct iwi_softc *); 129149338Sdamienstatic void iwi_tx_intr(struct iwi_softc *, struct iwi_tx_ring *); 130145247Sdamienstatic void iwi_intr(void *); 131145247Sdamienstatic int iwi_cmd(struct iwi_softc *, uint8_t, void *, uint8_t, int); 132145247Sdamienstatic int iwi_tx_start(struct ifnet *, struct mbuf *, 133145247Sdamien struct ieee80211_node *); 134145247Sdamienstatic void iwi_start(struct ifnet *); 135145247Sdamienstatic void iwi_watchdog(struct ifnet *); 136145247Sdamienstatic int iwi_ioctl(struct ifnet *, u_long, caddr_t); 137145247Sdamienstatic void iwi_stop_master(struct iwi_softc *); 138145247Sdamienstatic int iwi_reset(struct iwi_softc *); 139145247Sdamienstatic int iwi_load_ucode(struct iwi_softc *, void *, int); 140145247Sdamienstatic int iwi_load_firmware(struct iwi_softc *, void *, int); 141145247Sdamienstatic int iwi_cache_firmware(struct iwi_softc *, void *); 142145247Sdamienstatic void iwi_free_firmware(struct iwi_softc *); 143145247Sdamienstatic int iwi_config(struct iwi_softc *); 144146500Sdamienstatic int iwi_set_chan(struct iwi_softc *, struct ieee80211_channel *); 145145247Sdamienstatic int iwi_scan(struct iwi_softc *); 146145247Sdamienstatic int iwi_auth_and_assoc(struct iwi_softc *); 147145247Sdamienstatic void iwi_init(void *); 148145247Sdamienstatic void iwi_stop(void *); 149145247Sdamienstatic int iwi_sysctl_stats(SYSCTL_HANDLER_ARGS); 150145247Sdamienstatic int iwi_sysctl_radio(SYSCTL_HANDLER_ARGS); 151145247Sdamien 152145247Sdamienstatic int iwi_probe(device_t); 153145247Sdamienstatic int iwi_attach(device_t); 154145247Sdamienstatic int iwi_detach(device_t); 155145247Sdamienstatic int iwi_shutdown(device_t); 156145247Sdamienstatic int iwi_suspend(device_t); 157145247Sdamienstatic int iwi_resume(device_t); 158145247Sdamien 159145247Sdamienstatic device_method_t iwi_methods[] = { 160145247Sdamien /* Device interface */ 161145247Sdamien DEVMETHOD(device_probe, iwi_probe), 162145247Sdamien DEVMETHOD(device_attach, iwi_attach), 163145247Sdamien DEVMETHOD(device_detach, iwi_detach), 164145247Sdamien DEVMETHOD(device_shutdown, iwi_shutdown), 165145247Sdamien DEVMETHOD(device_suspend, iwi_suspend), 166145247Sdamien DEVMETHOD(device_resume, iwi_resume), 167145247Sdamien 168145247Sdamien { 0, 0 } 169145247Sdamien}; 170145247Sdamien 171145247Sdamienstatic driver_t iwi_driver = { 172145247Sdamien "iwi", 173145247Sdamien iwi_methods, 174145247Sdamien sizeof (struct iwi_softc) 175145247Sdamien}; 176145247Sdamien 177145247Sdamienstatic devclass_t iwi_devclass; 178145247Sdamien 179145247SdamienDRIVER_MODULE(iwi, pci, iwi_driver, iwi_devclass, 0, 0); 180145247Sdamien 181145247Sdamien/* 182145247Sdamien * Supported rates for 802.11a/b/g modes (in 500Kbps unit). 183145247Sdamien */ 184145247Sdamienstatic const struct ieee80211_rateset iwi_rateset_11a = 185145247Sdamien { 8, { 12, 18, 24, 36, 48, 72, 96, 108 } }; 186145247Sdamien 187145247Sdamienstatic const struct ieee80211_rateset iwi_rateset_11b = 188145247Sdamien { 4, { 2, 4, 11, 22 } }; 189145247Sdamien 190145247Sdamienstatic const struct ieee80211_rateset iwi_rateset_11g = 191145247Sdamien { 12, { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108 } }; 192145247Sdamien 193145247Sdamienstatic __inline uint8_t 194145247SdamienMEM_READ_1(struct iwi_softc *sc, uint32_t addr) 195145247Sdamien{ 196145247Sdamien CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 197145247Sdamien return CSR_READ_1(sc, IWI_CSR_INDIRECT_DATA); 198145247Sdamien} 199145247Sdamien 200145247Sdamienstatic __inline uint32_t 201145247SdamienMEM_READ_4(struct iwi_softc *sc, uint32_t addr) 202145247Sdamien{ 203145247Sdamien CSR_WRITE_4(sc, IWI_CSR_INDIRECT_ADDR, addr); 204145247Sdamien return CSR_READ_4(sc, IWI_CSR_INDIRECT_DATA); 205145247Sdamien} 206145247Sdamien 207145247Sdamienstatic int 208145247Sdamieniwi_probe(device_t dev) 209145247Sdamien{ 210145247Sdamien const struct iwi_ident *ident; 211145247Sdamien 212145247Sdamien for (ident = iwi_ident_table; ident->name != NULL; ident++) { 213145247Sdamien if (pci_get_vendor(dev) == ident->vendor && 214145247Sdamien pci_get_device(dev) == ident->device) { 215145247Sdamien device_set_desc(dev, ident->name); 216145247Sdamien return 0; 217145247Sdamien } 218145247Sdamien } 219145247Sdamien return ENXIO; 220145247Sdamien} 221145247Sdamien 222145247Sdamien/* Base Address Register */ 223145247Sdamien#define IWI_PCI_BAR0 0x10 224145247Sdamien 225145247Sdamienstatic int 226145247Sdamieniwi_attach(device_t dev) 227145247Sdamien{ 228145247Sdamien struct iwi_softc *sc = device_get_softc(dev); 229147256Sbrooks struct ifnet *ifp; 230145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 231145247Sdamien uint16_t val; 232145247Sdamien int error, i; 233145247Sdamien 234145247Sdamien sc->sc_dev = dev; 235145247Sdamien 236145247Sdamien mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 237145247Sdamien MTX_DEF | MTX_RECURSE); 238145247Sdamien 239145247Sdamien if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 240145247Sdamien device_printf(dev, "chip is in D%d power mode " 241145247Sdamien "-- setting to D0\n", pci_get_powerstate(dev)); 242145247Sdamien pci_set_powerstate(dev, PCI_POWERSTATE_D0); 243145247Sdamien } 244145247Sdamien 245146500Sdamien pci_write_config(dev, 0x41, 0, 1); 246146500Sdamien 247145247Sdamien /* enable bus-mastering */ 248145247Sdamien pci_enable_busmaster(dev); 249145247Sdamien 250145247Sdamien sc->mem_rid = IWI_PCI_BAR0; 251145247Sdamien sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, 252145247Sdamien RF_ACTIVE); 253145247Sdamien if (sc->mem == NULL) { 254145247Sdamien device_printf(dev, "could not allocate memory resource\n"); 255145247Sdamien goto fail; 256145247Sdamien } 257145247Sdamien 258145247Sdamien sc->sc_st = rman_get_bustag(sc->mem); 259145247Sdamien sc->sc_sh = rman_get_bushandle(sc->mem); 260145247Sdamien 261145247Sdamien sc->irq_rid = 0; 262145247Sdamien sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 263145247Sdamien RF_ACTIVE | RF_SHAREABLE); 264145247Sdamien if (sc->irq == NULL) { 265145247Sdamien device_printf(dev, "could not allocate interrupt resource\n"); 266145247Sdamien goto fail; 267145247Sdamien } 268145247Sdamien 269145247Sdamien if (iwi_reset(sc) != 0) { 270145247Sdamien device_printf(dev, "could not reset adapter\n"); 271145247Sdamien goto fail; 272145247Sdamien } 273145247Sdamien 274145247Sdamien /* 275145247Sdamien * Allocate rings. 276145247Sdamien */ 277145247Sdamien if (iwi_alloc_cmd_ring(sc, &sc->cmdq, IWI_CMD_RING_COUNT) != 0) { 278145247Sdamien device_printf(dev, "could not allocate Cmd ring\n"); 279145247Sdamien goto fail; 280145247Sdamien } 281145247Sdamien 282149338Sdamien error = iwi_alloc_tx_ring(sc, &sc->txq[0], IWI_TX_RING_COUNT, 283149338Sdamien IWI_CSR_TX1_RIDX, IWI_CSR_TX1_WIDX); 284149338Sdamien if (error != 0) { 285149338Sdamien device_printf(dev, "could not allocate Tx ring 1\n"); 286145247Sdamien goto fail; 287145247Sdamien } 288145247Sdamien 289149338Sdamien error = iwi_alloc_tx_ring(sc, &sc->txq[1], IWI_TX_RING_COUNT, 290149338Sdamien IWI_CSR_TX2_RIDX, IWI_CSR_TX2_WIDX); 291149338Sdamien if (error != 0) { 292149338Sdamien device_printf(dev, "could not allocate Tx ring 2\n"); 293149338Sdamien goto fail; 294149338Sdamien } 295149338Sdamien 296149338Sdamien error = iwi_alloc_tx_ring(sc, &sc->txq[2], IWI_TX_RING_COUNT, 297149338Sdamien IWI_CSR_TX3_RIDX, IWI_CSR_TX3_WIDX); 298149338Sdamien if (error != 0) { 299149338Sdamien device_printf(dev, "could not allocate Tx ring 3\n"); 300149338Sdamien goto fail; 301149338Sdamien } 302149338Sdamien 303149338Sdamien error = iwi_alloc_tx_ring(sc, &sc->txq[3], IWI_TX_RING_COUNT, 304149338Sdamien IWI_CSR_TX4_RIDX, IWI_CSR_TX4_WIDX); 305149338Sdamien if (error != 0) { 306149338Sdamien device_printf(dev, "could not allocate Tx ring 4\n"); 307149338Sdamien goto fail; 308149338Sdamien } 309149338Sdamien 310145247Sdamien if (iwi_alloc_rx_ring(sc, &sc->rxq, IWI_RX_RING_COUNT) != 0) { 311145247Sdamien device_printf(dev, "could not allocate Rx ring\n"); 312145247Sdamien goto fail; 313145247Sdamien } 314145247Sdamien 315147256Sbrooks ifp = sc->sc_ifp = if_alloc(IFT_ETHER); 316147256Sbrooks if (ifp == NULL) { 317147256Sbrooks device_printf(dev, "can not if_alloc()\n"); 318147256Sbrooks goto fail; 319147256Sbrooks return (ENOSPC); 320147256Sbrooks } 321145247Sdamien ifp->if_softc = sc; 322145247Sdamien if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 323145247Sdamien ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 324145247Sdamien ifp->if_init = iwi_init; 325145247Sdamien ifp->if_ioctl = iwi_ioctl; 326145247Sdamien ifp->if_start = iwi_start; 327145247Sdamien ifp->if_watchdog = iwi_watchdog; 328145247Sdamien IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 329145247Sdamien ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 330145247Sdamien IFQ_SET_READY(&ifp->if_snd); 331145247Sdamien 332145247Sdamien ic->ic_ifp = ifp; 333149338Sdamien ic->ic_wme.wme_update = iwi_wme_update; 334145247Sdamien ic->ic_phytype = IEEE80211_T_OFDM; /* not only, but not used */ 335145247Sdamien ic->ic_opmode = IEEE80211_M_STA; /* default to BSS mode */ 336145247Sdamien ic->ic_state = IEEE80211_S_INIT; 337145247Sdamien 338145247Sdamien /* set device capabilities */ 339149338Sdamien ic->ic_caps = 340149338Sdamien IEEE80211_C_MONITOR | /* monitor mode supported */ 341149338Sdamien IEEE80211_C_TXPMGT | /* tx power management */ 342149338Sdamien IEEE80211_C_SHPREAMBLE | /* short preamble supported */ 343149338Sdamien IEEE80211_C_WPA | /* 802.11i */ 344149338Sdamien IEEE80211_C_WME; /* 802.11e */ 345145247Sdamien 346145247Sdamien /* read MAC address from EEPROM */ 347145247Sdamien val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 0); 348145247Sdamien ic->ic_myaddr[0] = val >> 8; 349145247Sdamien ic->ic_myaddr[1] = val & 0xff; 350145247Sdamien val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 1); 351145247Sdamien ic->ic_myaddr[2] = val >> 8; 352145247Sdamien ic->ic_myaddr[3] = val & 0xff; 353145247Sdamien val = iwi_read_prom_word(sc, IWI_EEPROM_MAC + 2); 354145247Sdamien ic->ic_myaddr[4] = val >> 8; 355145247Sdamien ic->ic_myaddr[5] = val & 0xff; 356145247Sdamien 357146500Sdamien#if 0 358145247Sdamien if (pci_get_device(dev) >= 0x4223) { 359145247Sdamien /* set supported .11a rates (2915ABG only) */ 360145247Sdamien ic->ic_sup_rates[IEEE80211_MODE_11A] = iwi_rateset_11a; 361145247Sdamien 362145247Sdamien /* set supported .11a channels */ 363145247Sdamien for (i = 36; i <= 64; i += 4) { 364145247Sdamien ic->ic_channels[i].ic_freq = 365145247Sdamien ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 366145247Sdamien ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 367145247Sdamien } 368145247Sdamien for (i = 149; i <= 165; i += 4) { 369145247Sdamien ic->ic_channels[i].ic_freq = 370145247Sdamien ieee80211_ieee2mhz(i, IEEE80211_CHAN_5GHZ); 371145247Sdamien ic->ic_channels[i].ic_flags = IEEE80211_CHAN_A; 372145247Sdamien } 373145247Sdamien } 374146500Sdamien#endif 375145247Sdamien 376145247Sdamien /* set supported .11b and .11g rates */ 377145247Sdamien ic->ic_sup_rates[IEEE80211_MODE_11B] = iwi_rateset_11b; 378145247Sdamien ic->ic_sup_rates[IEEE80211_MODE_11G] = iwi_rateset_11g; 379145247Sdamien 380145247Sdamien /* set supported .11b and .11g channels (1 through 14) */ 381145247Sdamien for (i = 1; i <= 14; i++) { 382145247Sdamien ic->ic_channels[i].ic_freq = 383145247Sdamien ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 384145247Sdamien ic->ic_channels[i].ic_flags = 385145247Sdamien IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 386145247Sdamien IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 387145247Sdamien } 388145247Sdamien 389145247Sdamien ieee80211_ifattach(ic); 390145247Sdamien /* override state transition machine */ 391145247Sdamien sc->sc_newstate = ic->ic_newstate; 392145247Sdamien ic->ic_newstate = iwi_newstate; 393145247Sdamien ieee80211_media_init(ic, iwi_media_change, iwi_media_status); 394145247Sdamien 395145247Sdamien bpfattach2(ifp, DLT_IEEE802_11_RADIO, 396145247Sdamien sizeof (struct ieee80211_frame) + 64, &sc->sc_drvbpf); 397145247Sdamien 398145247Sdamien sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 399145247Sdamien sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 400145247Sdamien sc->sc_rxtap.wr_ihdr.it_present = htole32(IWI_RX_RADIOTAP_PRESENT); 401145247Sdamien 402145247Sdamien sc->sc_txtap_len = sizeof sc->sc_txtapu; 403145247Sdamien sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 404145247Sdamien sc->sc_txtap.wt_ihdr.it_present = htole32(IWI_TX_RADIOTAP_PRESENT); 405145247Sdamien 406145247Sdamien /* 407145247Sdamien * Add a few sysctl knobs. 408145247Sdamien */ 409145247Sdamien sc->dwelltime = 100; 410145247Sdamien sc->bluetooth = 1; 411146500Sdamien sc->antenna = 0; 412145247Sdamien 413145247Sdamien SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 414145247Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio", 415145247Sdamien CTLTYPE_INT | CTLFLAG_RD, sc, 0, iwi_sysctl_radio, "I", 416145247Sdamien "radio transmitter switch state (0=off, 1=on)"); 417145247Sdamien 418145247Sdamien SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 419145247Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats", 420145247Sdamien CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, iwi_sysctl_stats, "S", 421145247Sdamien "statistics"); 422145247Sdamien 423145247Sdamien SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 424145247Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "dwell", 425145247Sdamien CTLFLAG_RW, &sc->dwelltime, 0, 426145247Sdamien "channel dwell time (ms) for AP/station scanning"); 427145247Sdamien 428145247Sdamien SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 429145247Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "bluetooth", 430145247Sdamien CTLFLAG_RW, &sc->bluetooth, 0, "bluetooth coexistence"); 431145247Sdamien 432146500Sdamien SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 433146500Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "antenna", 434146500Sdamien CTLFLAG_RW, &sc->antenna, 0, "antenna (0=auto)"); 435146500Sdamien 436145247Sdamien /* 437145247Sdamien * Hook our interrupt after all initialization is complete. 438145247Sdamien */ 439145247Sdamien error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 440145247Sdamien iwi_intr, sc, &sc->sc_ih); 441145247Sdamien if (error != 0) { 442145247Sdamien device_printf(dev, "could not set up interrupt\n"); 443145247Sdamien goto fail; 444145247Sdamien } 445145247Sdamien 446145247Sdamien if (bootverbose) 447145247Sdamien ieee80211_announce(ic); 448145247Sdamien 449145247Sdamien return 0; 450145247Sdamien 451145247Sdamienfail: iwi_detach(dev); 452145247Sdamien return ENXIO; 453145247Sdamien} 454145247Sdamien 455145247Sdamienstatic int 456145247Sdamieniwi_detach(device_t dev) 457145247Sdamien{ 458145247Sdamien struct iwi_softc *sc = device_get_softc(dev); 459145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 460145247Sdamien struct ifnet *ifp = ic->ic_ifp; 461145247Sdamien 462145247Sdamien iwi_stop(sc); 463145247Sdamien 464145247Sdamien iwi_free_firmware(sc); 465145247Sdamien 466147256Sbrooks if (ifp != NULL) 467147256Sbrooks bpfdetach(ifp); 468145247Sdamien ieee80211_ifdetach(ic); 469147256Sbrooks if (ifp != NULL) 470147256Sbrooks if_free(ifp); 471145247Sdamien 472145247Sdamien iwi_free_cmd_ring(sc, &sc->cmdq); 473149338Sdamien iwi_free_tx_ring(sc, &sc->txq[0]); 474149338Sdamien iwi_free_tx_ring(sc, &sc->txq[1]); 475149338Sdamien iwi_free_tx_ring(sc, &sc->txq[2]); 476149338Sdamien iwi_free_tx_ring(sc, &sc->txq[3]); 477145247Sdamien iwi_free_rx_ring(sc, &sc->rxq); 478145247Sdamien 479145247Sdamien if (sc->irq != NULL) { 480145247Sdamien bus_teardown_intr(dev, sc->irq, sc->sc_ih); 481145247Sdamien bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 482145247Sdamien } 483145247Sdamien 484145247Sdamien if (sc->mem != NULL) 485145247Sdamien bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 486145247Sdamien 487145247Sdamien mtx_destroy(&sc->sc_mtx); 488145247Sdamien 489145247Sdamien return 0; 490145247Sdamien} 491145247Sdamien 492145247Sdamienstatic void 493145247Sdamieniwi_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 494145247Sdamien{ 495145247Sdamien if (error != 0) 496145247Sdamien return; 497145247Sdamien 498145247Sdamien KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 499145247Sdamien 500145247Sdamien *(bus_addr_t *)arg = segs[0].ds_addr; 501145247Sdamien} 502145247Sdamien 503145247Sdamienstatic int 504145247Sdamieniwi_alloc_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring, int count) 505145247Sdamien{ 506145247Sdamien int error; 507145247Sdamien 508145247Sdamien ring->count = count; 509145247Sdamien ring->queued = 0; 510145247Sdamien ring->cur = ring->next = 0; 511145247Sdamien 512145247Sdamien error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 513145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, count * IWI_CMD_DESC_SIZE, 1, 514145247Sdamien count * IWI_CMD_DESC_SIZE, 0, NULL, NULL, &ring->desc_dmat); 515145247Sdamien if (error != 0) { 516145247Sdamien device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 517145247Sdamien goto fail; 518145247Sdamien } 519145247Sdamien 520145247Sdamien error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 521145247Sdamien BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 522145247Sdamien if (error != 0) { 523145247Sdamien device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 524145247Sdamien goto fail; 525145247Sdamien } 526145247Sdamien 527145247Sdamien error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 528145247Sdamien count * IWI_CMD_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 529145247Sdamien if (error != 0) { 530145247Sdamien device_printf(sc->sc_dev, "could not load desc DMA map\n"); 531145247Sdamien goto fail; 532145247Sdamien } 533145247Sdamien 534145247Sdamien return 0; 535145247Sdamien 536145247Sdamienfail: iwi_free_cmd_ring(sc, ring); 537145247Sdamien return error; 538145247Sdamien} 539145247Sdamien 540145247Sdamienstatic void 541145247Sdamieniwi_reset_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 542145247Sdamien{ 543145247Sdamien ring->queued = 0; 544145247Sdamien ring->cur = ring->next = 0; 545145247Sdamien} 546145247Sdamien 547145247Sdamienstatic void 548145247Sdamieniwi_free_cmd_ring(struct iwi_softc *sc, struct iwi_cmd_ring *ring) 549145247Sdamien{ 550145247Sdamien if (ring->desc != NULL) { 551145247Sdamien bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 552145247Sdamien BUS_DMASYNC_POSTWRITE); 553145247Sdamien bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 554145247Sdamien bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 555145247Sdamien } 556145247Sdamien 557145247Sdamien if (ring->desc_dmat != NULL) 558145247Sdamien bus_dma_tag_destroy(ring->desc_dmat); 559145247Sdamien} 560145247Sdamien 561145247Sdamienstatic int 562149338Sdamieniwi_alloc_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring, int count, 563149338Sdamien bus_addr_t csr_ridx, bus_addr_t csr_widx) 564145247Sdamien{ 565145247Sdamien int i, error; 566145247Sdamien 567145247Sdamien ring->count = count; 568145247Sdamien ring->queued = 0; 569145247Sdamien ring->cur = ring->next = 0; 570149338Sdamien ring->csr_ridx = csr_ridx; 571149338Sdamien ring->csr_widx = csr_widx; 572145247Sdamien 573145247Sdamien error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 574145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, count * IWI_TX_DESC_SIZE, 1, 575145247Sdamien count * IWI_TX_DESC_SIZE, 0, NULL, NULL, &ring->desc_dmat); 576145247Sdamien if (error != 0) { 577145247Sdamien device_printf(sc->sc_dev, "could not create desc DMA tag\n"); 578145247Sdamien goto fail; 579145247Sdamien } 580145247Sdamien 581145247Sdamien error = bus_dmamem_alloc(ring->desc_dmat, (void **)&ring->desc, 582145247Sdamien BUS_DMA_NOWAIT | BUS_DMA_ZERO, &ring->desc_map); 583145247Sdamien if (error != 0) { 584145247Sdamien device_printf(sc->sc_dev, "could not allocate DMA memory\n"); 585145247Sdamien goto fail; 586145247Sdamien } 587145247Sdamien 588145247Sdamien error = bus_dmamap_load(ring->desc_dmat, ring->desc_map, ring->desc, 589145247Sdamien count * IWI_TX_DESC_SIZE, iwi_dma_map_addr, &ring->physaddr, 0); 590145247Sdamien if (error != 0) { 591145247Sdamien device_printf(sc->sc_dev, "could not load desc DMA map\n"); 592145247Sdamien goto fail; 593145247Sdamien } 594145247Sdamien 595145247Sdamien ring->data = malloc(count * sizeof (struct iwi_tx_data), M_DEVBUF, 596145247Sdamien M_NOWAIT | M_ZERO); 597145247Sdamien if (ring->data == NULL) { 598145247Sdamien device_printf(sc->sc_dev, "could not allocate soft data\n"); 599145247Sdamien error = ENOMEM; 600145247Sdamien goto fail; 601145247Sdamien } 602145247Sdamien 603145247Sdamien error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 604145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL, 605145247Sdamien NULL, &ring->data_dmat); 606145247Sdamien if (error != 0) { 607145247Sdamien device_printf(sc->sc_dev, "could not create data DMA tag\n"); 608145247Sdamien goto fail; 609145247Sdamien } 610145247Sdamien 611145247Sdamien for (i = 0; i < count; i++) { 612145247Sdamien error = bus_dmamap_create(ring->data_dmat, 0, 613145247Sdamien &ring->data[i].map); 614145247Sdamien if (error != 0) { 615145247Sdamien device_printf(sc->sc_dev, "could not create DMA map\n"); 616145247Sdamien goto fail; 617145247Sdamien } 618145247Sdamien } 619145247Sdamien 620145247Sdamien return 0; 621145247Sdamien 622145247Sdamienfail: iwi_free_tx_ring(sc, ring); 623145247Sdamien return error; 624145247Sdamien} 625145247Sdamien 626145247Sdamienstatic void 627145247Sdamieniwi_reset_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 628145247Sdamien{ 629145247Sdamien struct iwi_tx_data *data; 630145247Sdamien int i; 631145247Sdamien 632145247Sdamien for (i = 0; i < ring->count; i++) { 633145247Sdamien data = &ring->data[i]; 634145247Sdamien 635145247Sdamien if (data->m != NULL) { 636145247Sdamien bus_dmamap_sync(ring->data_dmat, data->map, 637145247Sdamien BUS_DMASYNC_POSTWRITE); 638145247Sdamien bus_dmamap_unload(ring->data_dmat, data->map); 639145247Sdamien m_freem(data->m); 640145247Sdamien data->m = NULL; 641145247Sdamien } 642145247Sdamien 643145247Sdamien if (data->ni != NULL) { 644145247Sdamien ieee80211_free_node(data->ni); 645145247Sdamien data->ni = NULL; 646145247Sdamien } 647145247Sdamien } 648145247Sdamien 649145247Sdamien ring->queued = 0; 650145247Sdamien ring->cur = ring->next = 0; 651145247Sdamien} 652145247Sdamien 653145247Sdamienstatic void 654145247Sdamieniwi_free_tx_ring(struct iwi_softc *sc, struct iwi_tx_ring *ring) 655145247Sdamien{ 656145247Sdamien struct iwi_tx_data *data; 657145247Sdamien int i; 658145247Sdamien 659145247Sdamien if (ring->desc != NULL) { 660145247Sdamien bus_dmamap_sync(ring->desc_dmat, ring->desc_map, 661145247Sdamien BUS_DMASYNC_POSTWRITE); 662145247Sdamien bus_dmamap_unload(ring->desc_dmat, ring->desc_map); 663145247Sdamien bus_dmamem_free(ring->desc_dmat, ring->desc, ring->desc_map); 664145247Sdamien } 665145247Sdamien 666145247Sdamien if (ring->desc_dmat != NULL) 667145247Sdamien bus_dma_tag_destroy(ring->desc_dmat); 668145247Sdamien 669145247Sdamien if (ring->data != NULL) { 670145247Sdamien for (i = 0; i < ring->count; i++) { 671145247Sdamien data = &ring->data[i]; 672145247Sdamien 673145247Sdamien if (data->m != NULL) { 674145247Sdamien bus_dmamap_sync(ring->data_dmat, data->map, 675145247Sdamien BUS_DMASYNC_POSTWRITE); 676145247Sdamien bus_dmamap_unload(ring->data_dmat, data->map); 677145247Sdamien m_freem(data->m); 678145247Sdamien } 679145247Sdamien 680145247Sdamien if (data->ni != NULL) 681145247Sdamien ieee80211_free_node(data->ni); 682145247Sdamien 683145247Sdamien if (data->map != NULL) 684145247Sdamien bus_dmamap_destroy(ring->data_dmat, data->map); 685145247Sdamien } 686145247Sdamien 687145247Sdamien free(ring->data, M_DEVBUF); 688145247Sdamien } 689145247Sdamien 690145247Sdamien if (ring->data_dmat != NULL) 691145247Sdamien bus_dma_tag_destroy(ring->data_dmat); 692145247Sdamien} 693145247Sdamien 694145247Sdamienstatic int 695145247Sdamieniwi_alloc_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring, int count) 696145247Sdamien{ 697145247Sdamien struct iwi_rx_data *data; 698145247Sdamien int i, error; 699145247Sdamien 700145247Sdamien ring->count = count; 701145247Sdamien ring->cur = 0; 702145247Sdamien 703145247Sdamien ring->data = malloc(count * sizeof (struct iwi_rx_data), M_DEVBUF, 704145247Sdamien M_NOWAIT | M_ZERO); 705145247Sdamien if (ring->data == NULL) { 706145247Sdamien device_printf(sc->sc_dev, "could not allocate soft data\n"); 707145247Sdamien error = ENOMEM; 708145247Sdamien goto fail; 709145247Sdamien } 710145247Sdamien 711145247Sdamien error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 712145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL, 713145247Sdamien NULL, &ring->data_dmat); 714145247Sdamien if (error != 0) { 715145247Sdamien device_printf(sc->sc_dev, "could not create data DMA tag\n"); 716145247Sdamien goto fail; 717145247Sdamien } 718145247Sdamien 719145247Sdamien for (i = 0; i < count; i++) { 720145247Sdamien data = &ring->data[i]; 721145247Sdamien 722145247Sdamien error = bus_dmamap_create(ring->data_dmat, 0, &data->map); 723145247Sdamien if (error != 0) { 724145247Sdamien device_printf(sc->sc_dev, "could not create DMA map\n"); 725145247Sdamien goto fail; 726145247Sdamien } 727145247Sdamien 728145247Sdamien data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 729145247Sdamien if (data->m == NULL) { 730145247Sdamien device_printf(sc->sc_dev, 731145247Sdamien "could not allocate rx mbuf\n"); 732145247Sdamien error = ENOMEM; 733145247Sdamien goto fail; 734145247Sdamien } 735145247Sdamien 736145247Sdamien error = bus_dmamap_load(ring->data_dmat, data->map, 737145247Sdamien mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, 738145247Sdamien &data->physaddr, 0); 739145247Sdamien if (error != 0) { 740145247Sdamien device_printf(sc->sc_dev, 741145247Sdamien "could not load rx buf DMA map"); 742145247Sdamien goto fail; 743145247Sdamien } 744145247Sdamien 745145247Sdamien data->reg = IWI_CSR_RX_BASE + i * 4; 746145247Sdamien } 747145247Sdamien 748145247Sdamien return 0; 749145247Sdamien 750145247Sdamienfail: iwi_free_rx_ring(sc, ring); 751145247Sdamien return error; 752145247Sdamien} 753145247Sdamien 754145247Sdamienstatic void 755145247Sdamieniwi_reset_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 756145247Sdamien{ 757145247Sdamien ring->cur = 0; 758145247Sdamien} 759145247Sdamien 760145247Sdamienstatic void 761145247Sdamieniwi_free_rx_ring(struct iwi_softc *sc, struct iwi_rx_ring *ring) 762145247Sdamien{ 763145247Sdamien struct iwi_rx_data *data; 764145247Sdamien int i; 765145247Sdamien 766145247Sdamien if (ring->data != NULL) { 767145247Sdamien for (i = 0; i < ring->count; i++) { 768145247Sdamien data = &ring->data[i]; 769145247Sdamien 770145247Sdamien if (data->m != NULL) { 771145247Sdamien bus_dmamap_sync(ring->data_dmat, data->map, 772145247Sdamien BUS_DMASYNC_POSTREAD); 773145247Sdamien bus_dmamap_unload(ring->data_dmat, data->map); 774145247Sdamien m_freem(data->m); 775145247Sdamien } 776145247Sdamien 777145247Sdamien if (data->map != NULL) 778145247Sdamien bus_dmamap_destroy(ring->data_dmat, data->map); 779145247Sdamien } 780145247Sdamien 781145247Sdamien free(ring->data, M_DEVBUF); 782145247Sdamien } 783145247Sdamien 784145247Sdamien if (ring->data_dmat != NULL) 785145247Sdamien bus_dma_tag_destroy(ring->data_dmat); 786145247Sdamien} 787145247Sdamien 788145247Sdamienstatic int 789145247Sdamieniwi_shutdown(device_t dev) 790145247Sdamien{ 791145247Sdamien struct iwi_softc *sc = device_get_softc(dev); 792145247Sdamien 793145247Sdamien iwi_stop(sc); 794145247Sdamien 795145247Sdamien return 0; 796145247Sdamien} 797145247Sdamien 798145247Sdamienstatic int 799145247Sdamieniwi_suspend(device_t dev) 800145247Sdamien{ 801145247Sdamien struct iwi_softc *sc = device_get_softc(dev); 802145247Sdamien 803145247Sdamien iwi_stop(sc); 804145247Sdamien 805145247Sdamien return 0; 806145247Sdamien} 807145247Sdamien 808145247Sdamienstatic int 809145247Sdamieniwi_resume(device_t dev) 810145247Sdamien{ 811145247Sdamien struct iwi_softc *sc = device_get_softc(dev); 812145247Sdamien struct ifnet *ifp = sc->sc_ic.ic_ifp; 813145247Sdamien 814145247Sdamien IWI_LOCK(sc); 815145247Sdamien 816146500Sdamien pci_write_config(dev, 0x41, 0, 1); 817146500Sdamien 818145247Sdamien if (ifp->if_flags & IFF_UP) { 819145247Sdamien ifp->if_init(ifp->if_softc); 820148887Srwatson if (ifp->if_drv_flags & IFF_DRV_RUNNING) 821145247Sdamien ifp->if_start(ifp); 822145247Sdamien } 823145247Sdamien 824145247Sdamien IWI_UNLOCK(sc); 825145247Sdamien 826145247Sdamien return 0; 827145247Sdamien} 828145247Sdamien 829145247Sdamienstatic int 830145247Sdamieniwi_media_change(struct ifnet *ifp) 831145247Sdamien{ 832145247Sdamien struct iwi_softc *sc = ifp->if_softc; 833145247Sdamien int error; 834145247Sdamien 835145247Sdamien IWI_LOCK(sc); 836145247Sdamien 837145247Sdamien error = ieee80211_media_change(ifp); 838145247Sdamien if (error != ENETRESET) { 839145247Sdamien IWI_UNLOCK(sc); 840145247Sdamien return error; 841145247Sdamien } 842145247Sdamien 843148887Srwatson if ((ifp->if_flags & IFF_UP) && (ifp->if_drv_flags & IFF_DRV_RUNNING)) 844145247Sdamien iwi_init(sc); 845145247Sdamien 846145247Sdamien IWI_UNLOCK(sc); 847145247Sdamien 848145247Sdamien return 0; 849145247Sdamien} 850145247Sdamien 851145247Sdamien/* 852145247Sdamien * The firmware automaticly adapt the transmit speed. We report the current 853145247Sdamien * transmit speed here. 854145247Sdamien */ 855145247Sdamienstatic void 856145247Sdamieniwi_media_status(struct ifnet *ifp, struct ifmediareq *imr) 857145247Sdamien{ 858145247Sdamien struct iwi_softc *sc = ifp->if_softc; 859145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 860145247Sdamien#define N(a) (sizeof (a) / sizeof (a[0])) 861145247Sdamien static const struct { 862145247Sdamien uint32_t val; 863145247Sdamien int rate; 864145247Sdamien } rates[] = { 865145247Sdamien { IWI_RATE_DS1, 2 }, 866145247Sdamien { IWI_RATE_DS2, 4 }, 867145247Sdamien { IWI_RATE_DS5, 11 }, 868145247Sdamien { IWI_RATE_DS11, 22 }, 869145247Sdamien { IWI_RATE_OFDM6, 12 }, 870145247Sdamien { IWI_RATE_OFDM9, 18 }, 871145247Sdamien { IWI_RATE_OFDM12, 24 }, 872145247Sdamien { IWI_RATE_OFDM18, 36 }, 873145247Sdamien { IWI_RATE_OFDM24, 48 }, 874145247Sdamien { IWI_RATE_OFDM36, 72 }, 875145247Sdamien { IWI_RATE_OFDM48, 96 }, 876145247Sdamien { IWI_RATE_OFDM54, 108 }, 877145247Sdamien }; 878145247Sdamien uint32_t val; 879145247Sdamien int rate, i; 880145247Sdamien 881145247Sdamien imr->ifm_status = IFM_AVALID; 882145247Sdamien imr->ifm_active = IFM_IEEE80211; 883145247Sdamien if (ic->ic_state == IEEE80211_S_RUN) 884145247Sdamien imr->ifm_status |= IFM_ACTIVE; 885145247Sdamien 886145247Sdamien /* read current transmission rate from adapter */ 887145247Sdamien val = CSR_READ_4(sc, IWI_CSR_CURRENT_TX_RATE); 888145247Sdamien 889145247Sdamien /* convert rate to 802.11 rate */ 890145247Sdamien for (i = 0; i < N(rates) && rates[i].val != val; i++); 891145247Sdamien rate = (i < N(rates)) ? rates[i].rate : 0; 892145247Sdamien 893145247Sdamien imr->ifm_active |= ieee80211_rate2media(ic, rate, ic->ic_curmode); 894145247Sdamien switch (ic->ic_opmode) { 895145247Sdamien case IEEE80211_M_STA: 896145247Sdamien break; 897145247Sdamien 898145247Sdamien case IEEE80211_M_IBSS: 899145247Sdamien imr->ifm_active |= IFM_IEEE80211_ADHOC; 900145247Sdamien break; 901145247Sdamien 902145247Sdamien case IEEE80211_M_MONITOR: 903145247Sdamien imr->ifm_active |= IFM_IEEE80211_MONITOR; 904145247Sdamien break; 905145247Sdamien 906145247Sdamien case IEEE80211_M_AHDEMO: 907145247Sdamien case IEEE80211_M_HOSTAP: 908145247Sdamien /* should not get there */ 909145247Sdamien break; 910145247Sdamien } 911145247Sdamien#undef N 912145247Sdamien} 913145247Sdamien 914145247Sdamienstatic int 915145247Sdamieniwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 916145247Sdamien{ 917145247Sdamien struct ifnet *ifp = ic->ic_ifp; 918145247Sdamien struct iwi_softc *sc = ifp->if_softc; 919145247Sdamien 920145247Sdamien switch (nstate) { 921145247Sdamien case IEEE80211_S_SCAN: 922146500Sdamien if (sc->flags & IWI_FLAG_SCANNING) 923146500Sdamien break; 924146500Sdamien 925146500Sdamien ieee80211_node_table_reset(&ic->ic_scan); 926146500Sdamien ic->ic_flags |= IEEE80211_F_SCAN | IEEE80211_F_ASCAN; 927146500Sdamien sc->flags |= IWI_FLAG_SCANNING; 928145247Sdamien iwi_scan(sc); 929145247Sdamien break; 930145247Sdamien 931145247Sdamien case IEEE80211_S_AUTH: 932145247Sdamien iwi_auth_and_assoc(sc); 933145247Sdamien break; 934145247Sdamien 935145247Sdamien case IEEE80211_S_RUN: 936145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS) 937145247Sdamien ieee80211_new_state(ic, IEEE80211_S_AUTH, -1); 938146500Sdamien else if (ic->ic_opmode == IEEE80211_M_MONITOR) 939146500Sdamien iwi_set_chan(sc, ic->ic_ibss_chan); 940146500Sdamien 941146500Sdamien return sc->sc_newstate(ic, nstate, 942146500Sdamien IEEE80211_FC0_SUBTYPE_ASSOC_RESP); 943146500Sdamien 944146500Sdamien case IEEE80211_S_ASSOC: 945145247Sdamien break; 946145247Sdamien 947145247Sdamien case IEEE80211_S_INIT: 948146500Sdamien sc->flags &= ~IWI_FLAG_SCANNING; 949145247Sdamien break; 950145247Sdamien } 951145247Sdamien 952145247Sdamien ic->ic_state = nstate; 953145247Sdamien return 0; 954145247Sdamien} 955145247Sdamien 956149346Sdamien/* 957149346Sdamien * WME parameters coming from IEEE 802.11e specification. These values are 958149346Sdamien * already declared in ieee80211_proto.c, but they are static so they can't 959149346Sdamien * be reused here. 960149346Sdamien */ 961149346Sdamienstatic const struct wmeParams iwi_wme_cck_params[WME_NUM_AC] = { 962149346Sdamien { 0, 3, 5, 7, 0 }, /* WME_AC_BE */ 963149346Sdamien { 0, 3, 5, 10, 0 }, /* WME_AC_BK */ 964149346Sdamien { 0, 2, 4, 5, 188 }, /* WME_AC_VI */ 965149346Sdamien { 0, 2, 3, 4, 102 } /* WME_AC_VO */ 966149346Sdamien}; 967149346Sdamien 968149346Sdamienstatic const struct wmeParams iwi_wme_ofdm_params[WME_NUM_AC] = { 969149346Sdamien { 0, 3, 4, 6, 0 }, /* WME_AC_BE */ 970149346Sdamien { 0, 3, 4, 10, 0 }, /* WME_AC_BK */ 971149346Sdamien { 0, 2, 3, 4, 94 }, /* WME_AC_VI */ 972149346Sdamien { 0, 2, 2, 3, 47 } /* WME_AC_VO */ 973149346Sdamien}; 974149346Sdamien 975149338Sdamienstatic int 976149338Sdamieniwi_wme_update(struct ieee80211com *ic) 977149338Sdamien{ 978149346Sdamien#define IWI_EXP2(v) htole16((1 << (v)) - 1) 979149346Sdamien#define IWI_USEC(v) htole16(IEEE80211_TXOP_TO_US(v)) 980149346Sdamien struct iwi_softc *sc = ic->ic_ifp->if_softc; 981149346Sdamien struct iwi_wme_params wme[3]; 982149346Sdamien const struct wmeParams *wmep; 983149346Sdamien int ac; 984149338Sdamien 985149346Sdamien /* 986149346Sdamien * We shall not override firmware default WME values if WME is not 987149346Sdamien * actually enabled. 988149346Sdamien */ 989149346Sdamien if (!(ic->ic_flags & IEEE80211_F_WME)) 990149346Sdamien return 0; 991149346Sdamien 992149346Sdamien for (ac = 0; ac < WME_NUM_AC; ac++) { 993149346Sdamien /* set WME values for current operating mode */ 994149346Sdamien wmep = &ic->ic_wme.wme_chanParams.cap_wmeParams[ac]; 995149346Sdamien wme[0].aifsn[ac] = wmep->wmep_aifsn; 996149346Sdamien wme[0].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 997149346Sdamien wme[0].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 998149346Sdamien wme[0].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 999149346Sdamien wme[0].acm[ac] = wmep->wmep_acm; 1000149346Sdamien 1001149346Sdamien /* set WME values for CCK modulation */ 1002149346Sdamien wmep = &iwi_wme_cck_params[ac]; 1003149346Sdamien wme[1].aifsn[ac] = wmep->wmep_aifsn; 1004149346Sdamien wme[1].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1005149346Sdamien wme[1].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1006149346Sdamien wme[1].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1007149346Sdamien wme[1].acm[ac] = wmep->wmep_acm; 1008149346Sdamien 1009149346Sdamien /* set WME values for OFDM modulation */ 1010149346Sdamien wmep = &iwi_wme_ofdm_params[ac]; 1011149346Sdamien wme[2].aifsn[ac] = wmep->wmep_aifsn; 1012149346Sdamien wme[2].cwmin[ac] = IWI_EXP2(wmep->wmep_logcwmin); 1013149346Sdamien wme[2].cwmax[ac] = IWI_EXP2(wmep->wmep_logcwmax); 1014149346Sdamien wme[2].burst[ac] = IWI_USEC(wmep->wmep_txopLimit); 1015149346Sdamien wme[2].acm[ac] = wmep->wmep_acm; 1016149346Sdamien } 1017149346Sdamien 1018149346Sdamien DPRINTF(("Setting WME parameters\n")); 1019149346Sdamien return iwi_cmd(sc, IWI_CMD_SET_WME_PARAMS, wme, sizeof wme, 1); 1020149346Sdamien#undef IWI_USEC 1021149346Sdamien#undef IWI_EXP2 1022149338Sdamien} 1023149338Sdamien 1024145247Sdamien/* 1025145247Sdamien * Read 16 bits at address 'addr' from the serial EEPROM. 1026145247Sdamien */ 1027145247Sdamienstatic uint16_t 1028145247Sdamieniwi_read_prom_word(struct iwi_softc *sc, uint8_t addr) 1029145247Sdamien{ 1030145247Sdamien uint32_t tmp; 1031145247Sdamien uint16_t val; 1032145247Sdamien int n; 1033145247Sdamien 1034145247Sdamien /* clock C once before the first command */ 1035145247Sdamien IWI_EEPROM_CTL(sc, 0); 1036145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1037145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1038145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1039145247Sdamien 1040145247Sdamien /* write start bit (1) */ 1041145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1042145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1043145247Sdamien 1044145247Sdamien /* write READ opcode (10) */ 1045145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D); 1046145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_D | IWI_EEPROM_C); 1047145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1048145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1049145247Sdamien 1050145247Sdamien /* write address A7-A0 */ 1051145247Sdamien for (n = 7; n >= 0; n--) { 1052145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1053145247Sdamien (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D)); 1054145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S | 1055145247Sdamien (((addr >> n) & 1) << IWI_EEPROM_SHIFT_D) | IWI_EEPROM_C); 1056145247Sdamien } 1057145247Sdamien 1058145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1059145247Sdamien 1060145247Sdamien /* read data Q15-Q0 */ 1061145247Sdamien val = 0; 1062145247Sdamien for (n = 15; n >= 0; n--) { 1063145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S | IWI_EEPROM_C); 1064145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1065145247Sdamien tmp = MEM_READ_4(sc, IWI_MEM_EEPROM_CTL); 1066145247Sdamien val |= ((tmp & IWI_EEPROM_Q) >> IWI_EEPROM_SHIFT_Q) << n; 1067145247Sdamien } 1068145247Sdamien 1069145247Sdamien IWI_EEPROM_CTL(sc, 0); 1070145247Sdamien 1071145247Sdamien /* clear Chip Select and clock C */ 1072145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_S); 1073145247Sdamien IWI_EEPROM_CTL(sc, 0); 1074145247Sdamien IWI_EEPROM_CTL(sc, IWI_EEPROM_C); 1075145247Sdamien 1076145247Sdamien return be16toh(val); 1077145247Sdamien} 1078145247Sdamien 1079145247Sdamien/* 1080145247Sdamien * XXX: Hack to set the current channel to the value advertised in beacons or 1081145247Sdamien * probe responses. Only used during AP detection. 1082145247Sdamien */ 1083145247Sdamienstatic void 1084145247Sdamieniwi_fix_channel(struct ieee80211com *ic, struct mbuf *m) 1085145247Sdamien{ 1086145247Sdamien struct ieee80211_frame *wh; 1087145247Sdamien uint8_t subtype; 1088145247Sdamien uint8_t *frm, *efrm; 1089145247Sdamien 1090145247Sdamien wh = mtod(m, struct ieee80211_frame *); 1091145247Sdamien 1092145247Sdamien if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 1093145247Sdamien return; 1094145247Sdamien 1095145247Sdamien subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 1096145247Sdamien 1097145247Sdamien if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 1098145247Sdamien subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 1099145247Sdamien return; 1100145247Sdamien 1101145247Sdamien frm = (uint8_t *)(wh + 1); 1102145247Sdamien efrm = mtod(m, uint8_t *) + m->m_len; 1103145247Sdamien 1104145247Sdamien frm += 12; /* skip tstamp, bintval and capinfo fields */ 1105145247Sdamien while (frm < efrm) { 1106145247Sdamien if (*frm == IEEE80211_ELEMID_DSPARMS) 1107145247Sdamien#if IEEE80211_CHAN_MAX < 255 1108145247Sdamien if (frm[2] <= IEEE80211_CHAN_MAX) 1109145247Sdamien#endif 1110149186Sjhb ic->ic_curchan = &ic->ic_channels[frm[2]]; 1111145247Sdamien 1112145247Sdamien frm += frm[1] + 2; 1113145247Sdamien } 1114145247Sdamien} 1115145247Sdamien 1116145247Sdamienstatic void 1117145247Sdamieniwi_frame_intr(struct iwi_softc *sc, struct iwi_rx_data *data, int i, 1118145247Sdamien struct iwi_frame *frame) 1119145247Sdamien{ 1120145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1121145247Sdamien struct ifnet *ifp = ic->ic_ifp; 1122145247Sdamien struct mbuf *m; 1123145247Sdamien struct ieee80211_frame *wh; 1124145247Sdamien struct ieee80211_node *ni; 1125145247Sdamien int error; 1126145247Sdamien 1127145247Sdamien DPRINTFN(5, ("received frame len=%u chan=%u rssi=%u\n", 1128145247Sdamien le16toh(frame->len), frame->chan, frame->rssi_dbm)); 1129145247Sdamien 1130146500Sdamien if (le16toh(frame->len) < sizeof (struct ieee80211_frame)) 1131146500Sdamien return; 1132146500Sdamien 1133145247Sdamien bus_dmamap_unload(sc->rxq.data_dmat, data->map); 1134145247Sdamien 1135145247Sdamien /* finalize mbuf */ 1136145247Sdamien m = data->m; 1137145247Sdamien m->m_pkthdr.rcvif = ifp; 1138145247Sdamien m->m_pkthdr.len = m->m_len = sizeof (struct iwi_hdr) + 1139145247Sdamien sizeof (struct iwi_frame) + le16toh(frame->len); 1140145247Sdamien 1141145247Sdamien m_adj(m, sizeof (struct iwi_hdr) + sizeof (struct iwi_frame)); 1142145247Sdamien 1143145247Sdamien if (ic->ic_state == IEEE80211_S_SCAN) 1144145247Sdamien iwi_fix_channel(ic, m); 1145145247Sdamien 1146145247Sdamien if (sc->sc_drvbpf != NULL) { 1147145247Sdamien struct iwi_rx_radiotap_header *tap = &sc->sc_rxtap; 1148145247Sdamien 1149145247Sdamien tap->wr_flags = 0; 1150145247Sdamien tap->wr_rate = frame->rate; 1151145247Sdamien tap->wr_chan_freq = 1152145247Sdamien htole16(ic->ic_channels[frame->chan].ic_freq); 1153145247Sdamien tap->wr_chan_flags = 1154145247Sdamien htole16(ic->ic_channels[frame->chan].ic_flags); 1155145247Sdamien tap->wr_antsignal = frame->signal; 1156145247Sdamien tap->wr_antenna = frame->antenna; 1157145247Sdamien 1158145247Sdamien bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1159145247Sdamien } 1160145247Sdamien 1161145247Sdamien wh = mtod(m, struct ieee80211_frame *); 1162145247Sdamien ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1163145247Sdamien 1164145247Sdamien /* send the frame to the 802.11 layer */ 1165146500Sdamien ieee80211_input(ic, m, ni, frame->rssi_dbm, 0); 1166145247Sdamien 1167145247Sdamien /* node is no longer needed */ 1168145247Sdamien ieee80211_free_node(ni); 1169145247Sdamien 1170145247Sdamien data->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 1171145247Sdamien if (data->m == NULL) { 1172145247Sdamien device_printf(sc->sc_dev, "could not allocate rx mbuf\n"); 1173145247Sdamien return; 1174145247Sdamien } 1175145247Sdamien 1176145247Sdamien error = bus_dmamap_load(sc->rxq.data_dmat, data->map, 1177145247Sdamien mtod(data->m, void *), MCLBYTES, iwi_dma_map_addr, &data->physaddr, 1178145247Sdamien 0); 1179145247Sdamien if (error != 0) { 1180145247Sdamien device_printf(sc->sc_dev, "could not load rx buf DMA map\n"); 1181145247Sdamien m_freem(data->m); 1182145247Sdamien data->m = NULL; 1183145247Sdamien return; 1184145247Sdamien } 1185145247Sdamien 1186145247Sdamien CSR_WRITE_4(sc, data->reg, data->physaddr); 1187145247Sdamien} 1188145247Sdamien 1189145247Sdamienstatic void 1190145247Sdamieniwi_notification_intr(struct iwi_softc *sc, struct iwi_notif *notif) 1191145247Sdamien{ 1192145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1193145247Sdamien struct iwi_notif_scan_channel *chan; 1194145247Sdamien struct iwi_notif_scan_complete *scan; 1195145247Sdamien struct iwi_notif_authentication *auth; 1196145247Sdamien struct iwi_notif_association *assoc; 1197145247Sdamien 1198145247Sdamien switch (notif->type) { 1199145247Sdamien case IWI_NOTIF_TYPE_SCAN_CHANNEL: 1200145247Sdamien chan = (struct iwi_notif_scan_channel *)(notif + 1); 1201145247Sdamien 1202145247Sdamien DPRINTFN(2, ("Scanning channel (%u)\n", chan->nchan)); 1203145247Sdamien break; 1204145247Sdamien 1205145247Sdamien case IWI_NOTIF_TYPE_SCAN_COMPLETE: 1206145247Sdamien scan = (struct iwi_notif_scan_complete *)(notif + 1); 1207145247Sdamien 1208145247Sdamien DPRINTFN(2, ("Scan completed (%u, %u)\n", scan->nchan, 1209145247Sdamien scan->status)); 1210145247Sdamien 1211146500Sdamien /* monitor mode uses scan to set the channel ... */ 1212146500Sdamien if (ic->ic_opmode != IEEE80211_M_MONITOR) { 1213146500Sdamien sc->flags &= ~IWI_FLAG_SCANNING; 1214146500Sdamien ieee80211_end_scan(ic); 1215146500Sdamien } else 1216146500Sdamien iwi_set_chan(sc, ic->ic_ibss_chan); 1217145247Sdamien break; 1218145247Sdamien 1219145247Sdamien case IWI_NOTIF_TYPE_AUTHENTICATION: 1220145247Sdamien auth = (struct iwi_notif_authentication *)(notif + 1); 1221145247Sdamien 1222145247Sdamien DPRINTFN(2, ("Authentication (%u)\n", auth->state)); 1223145247Sdamien 1224145247Sdamien switch (auth->state) { 1225145247Sdamien case IWI_AUTHENTICATED: 1226148302Ssam ieee80211_node_authorize(ic->ic_bss); 1227145247Sdamien ieee80211_new_state(ic, IEEE80211_S_ASSOC, -1); 1228145247Sdamien break; 1229145247Sdamien 1230145247Sdamien case IWI_DEAUTHENTICATED: 1231145247Sdamien break; 1232145247Sdamien 1233145247Sdamien default: 1234145247Sdamien device_printf(sc->sc_dev, 1235145247Sdamien "unknown authentication state %u\n", auth->state); 1236145247Sdamien } 1237145247Sdamien break; 1238145247Sdamien 1239145247Sdamien case IWI_NOTIF_TYPE_ASSOCIATION: 1240145247Sdamien assoc = (struct iwi_notif_association *)(notif + 1); 1241145247Sdamien 1242145247Sdamien DPRINTFN(2, ("Association (%u, %u)\n", assoc->state, 1243145247Sdamien assoc->status)); 1244145247Sdamien 1245145247Sdamien switch (assoc->state) { 1246145247Sdamien case IWI_AUTHENTICATED: 1247145247Sdamien /* re-association, do nothing */ 1248145247Sdamien break; 1249145247Sdamien 1250145247Sdamien case IWI_ASSOCIATED: 1251145247Sdamien ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1252145247Sdamien break; 1253145247Sdamien 1254145247Sdamien case IWI_DEASSOCIATED: 1255145247Sdamien ieee80211_begin_scan(ic, 1); 1256145247Sdamien break; 1257145247Sdamien 1258145247Sdamien default: 1259145247Sdamien device_printf(sc->sc_dev, 1260145247Sdamien "unknown association state %u\n", assoc->state); 1261145247Sdamien } 1262145247Sdamien break; 1263145247Sdamien 1264145247Sdamien case IWI_NOTIF_TYPE_CALIBRATION: 1265145247Sdamien case IWI_NOTIF_TYPE_BEACON: 1266145247Sdamien case IWI_NOTIF_TYPE_NOISE: 1267145247Sdamien DPRINTFN(5, ("Notification (%u)\n", notif->type)); 1268145247Sdamien break; 1269145247Sdamien 1270145247Sdamien default: 1271145247Sdamien device_printf(sc->sc_dev, "unknown notification type %u\n", 1272145247Sdamien notif->type); 1273145247Sdamien } 1274145247Sdamien} 1275145247Sdamien 1276145247Sdamienstatic void 1277145247Sdamieniwi_rx_intr(struct iwi_softc *sc) 1278145247Sdamien{ 1279145247Sdamien struct iwi_rx_data *data; 1280145247Sdamien struct iwi_hdr *hdr; 1281145247Sdamien uint32_t hw; 1282145247Sdamien 1283145247Sdamien hw = CSR_READ_4(sc, IWI_CSR_RX_RIDX); 1284145247Sdamien 1285145247Sdamien for (; sc->rxq.cur != hw;) { 1286145247Sdamien data = &sc->rxq.data[sc->rxq.cur]; 1287145247Sdamien 1288145247Sdamien bus_dmamap_sync(sc->rxq.data_dmat, data->map, 1289145247Sdamien BUS_DMASYNC_POSTREAD); 1290145247Sdamien 1291145247Sdamien hdr = mtod(data->m, struct iwi_hdr *); 1292145247Sdamien 1293145247Sdamien switch (hdr->type) { 1294145247Sdamien case IWI_HDR_TYPE_FRAME: 1295145247Sdamien iwi_frame_intr(sc, data, sc->rxq.cur, 1296145247Sdamien (struct iwi_frame *)(hdr + 1)); 1297145247Sdamien break; 1298145247Sdamien 1299145247Sdamien case IWI_HDR_TYPE_NOTIF: 1300145247Sdamien iwi_notification_intr(sc, 1301145247Sdamien (struct iwi_notif *)(hdr + 1)); 1302145247Sdamien break; 1303145247Sdamien 1304145247Sdamien default: 1305145247Sdamien device_printf(sc->sc_dev, "unknown hdr type %u\n", 1306145247Sdamien hdr->type); 1307145247Sdamien } 1308145247Sdamien 1309145247Sdamien DPRINTFN(15, ("rx done idx=%u\n", sc->rxq.cur)); 1310145247Sdamien 1311145247Sdamien sc->rxq.cur = (sc->rxq.cur + 1) % IWI_RX_RING_COUNT; 1312145247Sdamien } 1313145247Sdamien 1314145247Sdamien /* tell the firmware what we have processed */ 1315145247Sdamien hw = (hw == 0) ? IWI_RX_RING_COUNT - 1 : hw - 1; 1316145247Sdamien CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, hw); 1317145247Sdamien} 1318145247Sdamien 1319145247Sdamienstatic void 1320149338Sdamieniwi_tx_intr(struct iwi_softc *sc, struct iwi_tx_ring *txq) 1321145247Sdamien{ 1322145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1323145247Sdamien struct ifnet *ifp = ic->ic_ifp; 1324145247Sdamien struct iwi_tx_data *data; 1325145247Sdamien uint32_t hw; 1326145247Sdamien 1327149338Sdamien hw = CSR_READ_4(sc, txq->csr_ridx); 1328145247Sdamien 1329149338Sdamien for (; txq->next != hw;) { 1330149338Sdamien data = &txq->data[txq->next]; 1331145247Sdamien 1332149338Sdamien bus_dmamap_sync(txq->data_dmat, data->map, 1333145247Sdamien BUS_DMASYNC_POSTWRITE); 1334149338Sdamien bus_dmamap_unload(txq->data_dmat, data->map); 1335145247Sdamien m_freem(data->m); 1336145247Sdamien data->m = NULL; 1337145247Sdamien ieee80211_free_node(data->ni); 1338145247Sdamien data->ni = NULL; 1339145247Sdamien 1340149338Sdamien DPRINTFN(15, ("tx done idx=%u\n", txq->next)); 1341145247Sdamien 1342145247Sdamien ifp->if_opackets++; 1343145247Sdamien 1344149338Sdamien txq->queued--; 1345149338Sdamien txq->next = (txq->next + 1) % IWI_TX_RING_COUNT; 1346145247Sdamien } 1347145247Sdamien 1348145247Sdamien sc->sc_tx_timer = 0; 1349148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1350145247Sdamien iwi_start(ifp); 1351145247Sdamien} 1352145247Sdamien 1353145247Sdamienstatic void 1354145247Sdamieniwi_intr(void *arg) 1355145247Sdamien{ 1356145247Sdamien struct iwi_softc *sc = arg; 1357145247Sdamien uint32_t r; 1358145247Sdamien 1359145247Sdamien IWI_LOCK(sc); 1360145247Sdamien 1361145247Sdamien if ((r = CSR_READ_4(sc, IWI_CSR_INTR)) == 0 || r == 0xffffffff) { 1362145247Sdamien IWI_UNLOCK(sc); 1363145247Sdamien return; 1364145247Sdamien } 1365145247Sdamien 1366145247Sdamien /* disable interrupts */ 1367145247Sdamien CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1368145247Sdamien 1369145247Sdamien if (r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR)) { 1370145247Sdamien device_printf(sc->sc_dev, "fatal error\n"); 1371145247Sdamien sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1372145247Sdamien iwi_stop(sc); 1373145247Sdamien } 1374145247Sdamien 1375145247Sdamien if (r & IWI_INTR_FW_INITED) { 1376145247Sdamien if (!(r & (IWI_INTR_FATAL_ERROR | IWI_INTR_PARITY_ERROR))) 1377145247Sdamien wakeup(sc); 1378145247Sdamien } 1379145247Sdamien 1380145247Sdamien if (r & IWI_INTR_RADIO_OFF) { 1381145247Sdamien DPRINTF(("radio transmitter turned off\n")); 1382145247Sdamien sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1383145247Sdamien iwi_stop(sc); 1384145247Sdamien } 1385145247Sdamien 1386145247Sdamien if (r & IWI_INTR_CMD_DONE) 1387145247Sdamien wakeup(sc); 1388145247Sdamien 1389145247Sdamien if (r & IWI_INTR_TX1_DONE) 1390149338Sdamien iwi_tx_intr(sc, &sc->txq[0]); 1391145247Sdamien 1392149338Sdamien if (r & IWI_INTR_TX2_DONE) 1393149338Sdamien iwi_tx_intr(sc, &sc->txq[1]); 1394149338Sdamien 1395149338Sdamien if (r & IWI_INTR_TX3_DONE) 1396149338Sdamien iwi_tx_intr(sc, &sc->txq[2]); 1397149338Sdamien 1398149338Sdamien if (r & IWI_INTR_TX4_DONE) 1399149338Sdamien iwi_tx_intr(sc, &sc->txq[3]); 1400149338Sdamien 1401149338Sdamien if (r & IWI_INTR_RX_DONE) 1402149338Sdamien iwi_rx_intr(sc); 1403149338Sdamien 1404145247Sdamien /* acknowledge interrupts */ 1405145247Sdamien CSR_WRITE_4(sc, IWI_CSR_INTR, r); 1406145247Sdamien 1407145247Sdamien /* re-enable interrupts */ 1408145247Sdamien CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 1409145247Sdamien 1410145247Sdamien IWI_UNLOCK(sc); 1411145247Sdamien} 1412145247Sdamien 1413145247Sdamienstatic int 1414145247Sdamieniwi_cmd(struct iwi_softc *sc, uint8_t type, void *data, uint8_t len, int async) 1415145247Sdamien{ 1416145247Sdamien struct iwi_cmd_desc *desc; 1417145247Sdamien 1418145247Sdamien desc = &sc->cmdq.desc[sc->cmdq.cur]; 1419145247Sdamien 1420145247Sdamien desc->hdr.type = IWI_HDR_TYPE_COMMAND; 1421145247Sdamien desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1422145247Sdamien desc->type = type; 1423145247Sdamien desc->len = len; 1424145247Sdamien memcpy(desc->data, data, len); 1425145247Sdamien 1426145247Sdamien bus_dmamap_sync(sc->cmdq.desc_dmat, sc->cmdq.desc_map, 1427145247Sdamien BUS_DMASYNC_PREWRITE); 1428145247Sdamien 1429145247Sdamien DPRINTFN(2, ("sending command idx=%u type=%u len=%u\n", sc->cmdq.cur, 1430145247Sdamien type, len)); 1431145247Sdamien 1432145247Sdamien sc->cmdq.cur = (sc->cmdq.cur + 1) % IWI_CMD_RING_COUNT; 1433145247Sdamien CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 1434145247Sdamien 1435145247Sdamien return async ? 0 : msleep(sc, &sc->sc_mtx, 0, "iwicmd", hz); 1436145247Sdamien} 1437145247Sdamien 1438145247Sdamienstatic int 1439145247Sdamieniwi_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni) 1440145247Sdamien{ 1441145247Sdamien struct iwi_softc *sc = ifp->if_softc; 1442145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1443149338Sdamien struct ieee80211_frame *wh; 1444146500Sdamien struct ieee80211_key *k; 1445149338Sdamien const struct chanAccParams *cap; 1446149338Sdamien struct iwi_tx_ring *txq; 1447145247Sdamien struct iwi_tx_data *data; 1448145247Sdamien struct iwi_tx_desc *desc; 1449145247Sdamien struct mbuf *mnew; 1450145247Sdamien bus_dma_segment_t segs[IWI_MAX_NSEG]; 1451149338Sdamien int error, nsegs, hdrlen, ac, i, noack = 0; 1452145247Sdamien 1453149338Sdamien wh = mtod(m0, struct ieee80211_frame *); 1454149338Sdamien 1455149338Sdamien if (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) { 1456149338Sdamien hdrlen = sizeof (struct ieee80211_qosframe); 1457149338Sdamien ac = M_WME_GETAC(m0); 1458149338Sdamien cap = &ic->ic_wme.wme_chanParams; 1459149338Sdamien noack = cap->cap_wmeParams[ac].wmep_noackPolicy; 1460149338Sdamien } else { 1461149338Sdamien hdrlen = sizeof (struct ieee80211_frame); 1462149338Sdamien ac = WME_AC_BE; 1463149338Sdamien } 1464149338Sdamien 1465149338Sdamien txq = &sc->txq[ac]; 1466149338Sdamien if (txq->queued >= IWI_TX_RING_COUNT - 4) { 1467149338Sdamien /* 1468149338Sdamien * There is no place left in this ring. Perhaps in 802.11e, 1469149338Sdamien * we should try to fallback to a lowest priority ring? 1470149338Sdamien */ 1471149338Sdamien ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1472149338Sdamien m_freem(m0); 1473149338Sdamien return 0; 1474149338Sdamien } 1475149338Sdamien 1476149338Sdamien if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1477146500Sdamien k = ieee80211_crypto_encap(ic, ni, m0); 1478147806Ssam if (k == NULL) { 1479147806Ssam m_freem(m0); 1480146500Sdamien return ENOBUFS; 1481147806Ssam } 1482149338Sdamien 1483149338Sdamien /* packet header may have moved, reset our local pointer */ 1484149338Sdamien wh = mtod(m0, struct ieee80211_frame *); 1485146500Sdamien } 1486146500Sdamien 1487145247Sdamien if (sc->sc_drvbpf != NULL) { 1488145247Sdamien struct iwi_tx_radiotap_header *tap = &sc->sc_txtap; 1489145247Sdamien 1490145247Sdamien tap->wt_flags = 0; 1491146500Sdamien tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1492146500Sdamien tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1493145247Sdamien 1494145247Sdamien bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1495145247Sdamien } 1496145247Sdamien 1497149338Sdamien data = &txq->data[txq->cur]; 1498149338Sdamien desc = &txq->desc[txq->cur]; 1499145247Sdamien 1500149338Sdamien /* save and trim IEEE802.11 header */ 1501149338Sdamien m_copydata(m0, 0, hdrlen, (caddr_t)&desc->wh); 1502149338Sdamien m_adj(m0, hdrlen); 1503145247Sdamien 1504149338Sdamien error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, m0, segs, 1505145247Sdamien &nsegs, 0); 1506145247Sdamien if (error != 0 && error != EFBIG) { 1507145247Sdamien device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1508145247Sdamien error); 1509145247Sdamien m_freem(m0); 1510145247Sdamien return error; 1511145247Sdamien } 1512145247Sdamien if (error != 0) { 1513145247Sdamien mnew = m_defrag(m0, M_DONTWAIT); 1514145247Sdamien if (mnew == NULL) { 1515145247Sdamien device_printf(sc->sc_dev, 1516145247Sdamien "could not defragment mbuf\n"); 1517145247Sdamien m_freem(m0); 1518145247Sdamien return ENOBUFS; 1519145247Sdamien } 1520145247Sdamien m0 = mnew; 1521145247Sdamien 1522149338Sdamien error = bus_dmamap_load_mbuf_sg(txq->data_dmat, data->map, 1523145247Sdamien m0, segs, &nsegs, 0); 1524145247Sdamien if (error != 0) { 1525145247Sdamien device_printf(sc->sc_dev, 1526145247Sdamien "could not map mbuf (error %d)\n", error); 1527145247Sdamien m_freem(m0); 1528145247Sdamien return error; 1529145247Sdamien } 1530145247Sdamien } 1531145247Sdamien 1532145247Sdamien data->m = m0; 1533145247Sdamien data->ni = ni; 1534145247Sdamien 1535145247Sdamien desc->hdr.type = IWI_HDR_TYPE_DATA; 1536145247Sdamien desc->hdr.flags = IWI_HDR_FLAG_IRQ; 1537145247Sdamien desc->cmd = IWI_DATA_CMD_TX; 1538145247Sdamien desc->len = htole16(m0->m_pkthdr.len); 1539145247Sdamien desc->flags = 0; 1540149338Sdamien desc->xflags = 0; 1541145247Sdamien 1542149338Sdamien if (!noack && !IEEE80211_IS_MULTICAST(desc->wh.i_addr1)) 1543145247Sdamien desc->flags |= IWI_DATA_FLAG_NEED_ACK; 1544145247Sdamien 1545146500Sdamien#if 0 1546145247Sdamien if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1547149338Sdamien desc->wh.i_fc[1] |= IEEE80211_FC1_WEP; 1548145247Sdamien desc->wep_txkey = ic->ic_crypto.cs_def_txkey; 1549145247Sdamien } else 1550146500Sdamien#endif 1551145247Sdamien desc->flags |= IWI_DATA_FLAG_NO_WEP; 1552145247Sdamien 1553145247Sdamien if (ic->ic_flags & IEEE80211_F_SHPREAMBLE) 1554145247Sdamien desc->flags |= IWI_DATA_FLAG_SHPREAMBLE; 1555145247Sdamien 1556149338Sdamien if (desc->wh.i_fc[0] & IEEE80211_FC0_SUBTYPE_QOS) 1557149338Sdamien desc->xflags |= IWI_DATA_XFLAG_QOS; 1558149338Sdamien 1559145247Sdamien desc->nseg = htole32(nsegs); 1560145247Sdamien for (i = 0; i < nsegs; i++) { 1561145247Sdamien desc->seg_addr[i] = htole32(segs[i].ds_addr); 1562145247Sdamien desc->seg_len[i] = htole32(segs[i].ds_len); 1563145247Sdamien } 1564145247Sdamien 1565149338Sdamien bus_dmamap_sync(txq->data_dmat, data->map, BUS_DMASYNC_PREWRITE); 1566149338Sdamien bus_dmamap_sync(txq->desc_dmat, txq->desc_map, BUS_DMASYNC_PREWRITE); 1567145247Sdamien 1568149338Sdamien DPRINTFN(5, ("sending data frame txq=%u idx=%u len=%u nseg=%u\n", 1569149338Sdamien ac, txq->cur, desc->len, desc->nseg)); 1570145247Sdamien 1571149338Sdamien txq->queued++; 1572149338Sdamien txq->cur = (txq->cur + 1) % IWI_TX_RING_COUNT; 1573149338Sdamien CSR_WRITE_4(sc, txq->csr_widx, txq->cur); 1574145247Sdamien 1575145247Sdamien return 0; 1576145247Sdamien} 1577145247Sdamien 1578145247Sdamienstatic void 1579145247Sdamieniwi_start(struct ifnet *ifp) 1580145247Sdamien{ 1581145247Sdamien struct iwi_softc *sc = ifp->if_softc; 1582145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1583145247Sdamien struct mbuf *m0; 1584145247Sdamien struct ether_header *eh; 1585145247Sdamien struct ieee80211_node *ni; 1586145247Sdamien 1587145247Sdamien IWI_LOCK(sc); 1588145247Sdamien 1589145247Sdamien if (ic->ic_state != IEEE80211_S_RUN) { 1590145247Sdamien IWI_UNLOCK(sc); 1591145247Sdamien return; 1592145247Sdamien } 1593145247Sdamien 1594145247Sdamien for (;;) { 1595145247Sdamien IFQ_DRV_DEQUEUE(&ifp->if_snd, m0); 1596145247Sdamien if (m0 == NULL) 1597145247Sdamien break; 1598145247Sdamien 1599145247Sdamien if (m0->m_len < sizeof (struct ether_header) && 1600145247Sdamien (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) 1601145247Sdamien continue; 1602145247Sdamien 1603145247Sdamien eh = mtod(m0, struct ether_header *); 1604145247Sdamien ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1605145247Sdamien if (ni == NULL) { 1606145247Sdamien m_freem(m0); 1607145247Sdamien continue; 1608145247Sdamien } 1609149338Sdamien if (ieee80211_classify(ic, m0, ni) != 0) { 1610149338Sdamien m_freem(m0); 1611149338Sdamien continue; 1612149338Sdamien } 1613145247Sdamien BPF_MTAP(ifp, m0); 1614145247Sdamien 1615145247Sdamien m0 = ieee80211_encap(ic, m0, ni); 1616147834Ssam if (m0 == NULL) { 1617147834Ssam ieee80211_free_node(ni); 1618145247Sdamien continue; 1619147834Ssam } 1620145247Sdamien 1621145247Sdamien if (ic->ic_rawbpf != NULL) 1622145247Sdamien bpf_mtap(ic->ic_rawbpf, m0); 1623145247Sdamien 1624145247Sdamien if (iwi_tx_start(ifp, m0, ni) != 0) { 1625145247Sdamien ieee80211_free_node(ni); 1626145247Sdamien ifp->if_oerrors++; 1627145247Sdamien break; 1628145247Sdamien } 1629145247Sdamien 1630145247Sdamien sc->sc_tx_timer = 5; 1631145247Sdamien ifp->if_timer = 1; 1632145247Sdamien } 1633145247Sdamien 1634145247Sdamien IWI_UNLOCK(sc); 1635145247Sdamien} 1636145247Sdamien 1637145247Sdamienstatic void 1638145247Sdamieniwi_watchdog(struct ifnet *ifp) 1639145247Sdamien{ 1640145247Sdamien struct iwi_softc *sc = ifp->if_softc; 1641145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1642145247Sdamien 1643145247Sdamien IWI_LOCK(sc); 1644145247Sdamien 1645145247Sdamien ifp->if_timer = 0; 1646145247Sdamien 1647145247Sdamien if (sc->sc_tx_timer > 0) { 1648145247Sdamien if (--sc->sc_tx_timer == 0) { 1649145247Sdamien if_printf(ifp, "device timeout\n"); 1650145247Sdamien ifp->if_oerrors++; 1651145247Sdamien ifp->if_flags &= ~IFF_UP; 1652145247Sdamien iwi_stop(sc); 1653145247Sdamien IWI_UNLOCK(sc); 1654145247Sdamien return; 1655145247Sdamien } 1656145247Sdamien ifp->if_timer = 1; 1657145247Sdamien } 1658145247Sdamien 1659145247Sdamien ieee80211_watchdog(ic); 1660145247Sdamien 1661145247Sdamien IWI_UNLOCK(sc); 1662145247Sdamien} 1663145247Sdamien 1664145247Sdamienstatic int 1665145247Sdamieniwi_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1666145247Sdamien{ 1667145247Sdamien struct iwi_softc *sc = ifp->if_softc; 1668145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1669145247Sdamien struct ifreq *ifr; 1670145247Sdamien int error = 0; 1671145247Sdamien 1672145247Sdamien IWI_LOCK(sc); 1673145247Sdamien 1674145247Sdamien switch (cmd) { 1675145247Sdamien case SIOCSIFFLAGS: 1676145247Sdamien if (ifp->if_flags & IFF_UP) { 1677148887Srwatson if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 1678145247Sdamien iwi_init(sc); 1679145247Sdamien } else { 1680148887Srwatson if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1681145247Sdamien iwi_stop(sc); 1682145247Sdamien } 1683145247Sdamien break; 1684145247Sdamien 1685145247Sdamien case SIOCSLOADFW: 1686145247Sdamien /* only super-user can do that! */ 1687145247Sdamien if ((error = suser(curthread)) != 0) 1688145247Sdamien break; 1689145247Sdamien 1690145247Sdamien ifr = (struct ifreq *)data; 1691145247Sdamien error = iwi_cache_firmware(sc, ifr->ifr_data); 1692145247Sdamien break; 1693145247Sdamien 1694145247Sdamien case SIOCSKILLFW: 1695145247Sdamien /* only super-user can do that! */ 1696145247Sdamien if ((error = suser(curthread)) != 0) 1697145247Sdamien break; 1698145247Sdamien 1699145247Sdamien ifp->if_flags &= ~IFF_UP; 1700145247Sdamien iwi_stop(sc); 1701145247Sdamien iwi_free_firmware(sc); 1702145247Sdamien break; 1703145247Sdamien 1704145247Sdamien default: 1705145247Sdamien error = ieee80211_ioctl(ic, cmd, data); 1706145247Sdamien } 1707145247Sdamien 1708145247Sdamien if (error == ENETRESET) { 1709148887Srwatson if ((ifp->if_flags & IFF_UP) && 1710149333Sdamien (ifp->if_drv_flags & IFF_DRV_RUNNING) && 1711149333Sdamien (ic->ic_roaming != IEEE80211_ROAMING_MANUAL)) 1712145247Sdamien iwi_init(sc); 1713145247Sdamien error = 0; 1714145247Sdamien } 1715145247Sdamien 1716145247Sdamien IWI_UNLOCK(sc); 1717145247Sdamien 1718145247Sdamien return error; 1719145247Sdamien} 1720145247Sdamien 1721145247Sdamienstatic void 1722145247Sdamieniwi_stop_master(struct iwi_softc *sc) 1723145247Sdamien{ 1724145247Sdamien uint32_t tmp; 1725145247Sdamien int ntries; 1726145247Sdamien 1727145247Sdamien /* disable interrupts */ 1728145247Sdamien CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, 0); 1729145247Sdamien 1730145247Sdamien CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_STOP_MASTER); 1731145247Sdamien for (ntries = 0; ntries < 5; ntries++) { 1732145247Sdamien if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1733145247Sdamien break; 1734145247Sdamien DELAY(10); 1735145247Sdamien } 1736145247Sdamien if (ntries == 5) 1737145247Sdamien device_printf(sc->sc_dev, "timeout waiting for master\n"); 1738145247Sdamien 1739145247Sdamien tmp = CSR_READ_4(sc, IWI_CSR_RST); 1740145247Sdamien CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_PRINCETON_RESET); 1741145247Sdamien 1742145247Sdamien sc->flags &= ~IWI_FLAG_FW_INITED; 1743145247Sdamien} 1744145247Sdamien 1745145247Sdamienstatic int 1746145247Sdamieniwi_reset(struct iwi_softc *sc) 1747145247Sdamien{ 1748145247Sdamien uint32_t tmp; 1749145247Sdamien int i, ntries; 1750145247Sdamien 1751145247Sdamien iwi_stop_master(sc); 1752145247Sdamien 1753145247Sdamien tmp = CSR_READ_4(sc, IWI_CSR_CTL); 1754145247Sdamien CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 1755145247Sdamien 1756145247Sdamien CSR_WRITE_4(sc, IWI_CSR_READ_INT, IWI_READ_INT_INIT_HOST); 1757145247Sdamien 1758145247Sdamien /* wait for clock stabilization */ 1759145247Sdamien for (ntries = 0; ntries < 1000; ntries++) { 1760145247Sdamien if (CSR_READ_4(sc, IWI_CSR_CTL) & IWI_CTL_CLOCK_READY) 1761145247Sdamien break; 1762145247Sdamien DELAY(200); 1763145247Sdamien } 1764145247Sdamien if (ntries == 1000) { 1765145247Sdamien device_printf(sc->sc_dev, 1766145247Sdamien "timeout waiting for clock stabilization\n"); 1767145247Sdamien return EIO; 1768145247Sdamien } 1769145247Sdamien 1770145247Sdamien tmp = CSR_READ_4(sc, IWI_CSR_RST); 1771145247Sdamien CSR_WRITE_4(sc, IWI_CSR_RST, tmp | IWI_RST_SOFT_RESET); 1772145247Sdamien 1773145247Sdamien DELAY(10); 1774145247Sdamien 1775145247Sdamien tmp = CSR_READ_4(sc, IWI_CSR_CTL); 1776145247Sdamien CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_INIT); 1777145247Sdamien 1778145247Sdamien /* clear NIC memory */ 1779145247Sdamien CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0); 1780145247Sdamien for (i = 0; i < 0xc000; i++) 1781145247Sdamien CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1782145247Sdamien 1783145247Sdamien return 0; 1784145247Sdamien} 1785145247Sdamien 1786145247Sdamienstatic int 1787145247Sdamieniwi_load_ucode(struct iwi_softc *sc, void *uc, int size) 1788145247Sdamien{ 1789145247Sdamien uint32_t tmp; 1790145247Sdamien uint16_t *w; 1791145247Sdamien int ntries, i; 1792145247Sdamien 1793145247Sdamien CSR_WRITE_4(sc, IWI_CSR_RST, CSR_READ_4(sc, IWI_CSR_RST) | 1794145247Sdamien IWI_RST_STOP_MASTER); 1795145247Sdamien for (ntries = 0; ntries < 5; ntries++) { 1796145247Sdamien if (CSR_READ_4(sc, IWI_CSR_RST) & IWI_RST_MASTER_DISABLED) 1797145247Sdamien break; 1798145247Sdamien DELAY(10); 1799145247Sdamien } 1800145247Sdamien if (ntries == 5) { 1801145247Sdamien device_printf(sc->sc_dev, "timeout waiting for master\n"); 1802145247Sdamien return EIO; 1803145247Sdamien } 1804145247Sdamien 1805145247Sdamien MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1806145247Sdamien DELAY(5000); 1807145247Sdamien 1808145247Sdamien tmp = CSR_READ_4(sc, IWI_CSR_RST); 1809145247Sdamien tmp &= ~IWI_RST_PRINCETON_RESET; 1810145247Sdamien CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 1811145247Sdamien 1812145247Sdamien DELAY(5000); 1813145247Sdamien MEM_WRITE_4(sc, 0x3000e0, 0); 1814145247Sdamien DELAY(1000); 1815145247Sdamien MEM_WRITE_4(sc, 0x300004, 1); 1816145247Sdamien DELAY(1000); 1817145247Sdamien MEM_WRITE_4(sc, 0x300004, 0); 1818145247Sdamien DELAY(1000); 1819145247Sdamien MEM_WRITE_1(sc, 0x200000, 0x00); 1820145247Sdamien MEM_WRITE_1(sc, 0x200000, 0x40); 1821145247Sdamien DELAY(1000); 1822145247Sdamien 1823145247Sdamien /* write microcode into adapter memory */ 1824145247Sdamien for (w = uc; size > 0; w++, size -= 2) 1825145247Sdamien MEM_WRITE_2(sc, 0x200010, *w); 1826145247Sdamien 1827145247Sdamien MEM_WRITE_1(sc, 0x200000, 0x00); 1828145247Sdamien MEM_WRITE_1(sc, 0x200000, 0x80); 1829145247Sdamien 1830145247Sdamien /* wait until we get an answer */ 1831145247Sdamien for (ntries = 0; ntries < 100; ntries++) { 1832145247Sdamien if (MEM_READ_1(sc, 0x200000) & 1) 1833145247Sdamien break; 1834145247Sdamien DELAY(100); 1835145247Sdamien } 1836145247Sdamien if (ntries == 100) { 1837145247Sdamien device_printf(sc->sc_dev, 1838145247Sdamien "timeout waiting for ucode to initialize\n"); 1839145247Sdamien return EIO; 1840145247Sdamien } 1841145247Sdamien 1842145247Sdamien /* read the answer or the firmware will not initialize properly */ 1843145247Sdamien for (i = 0; i < 7; i++) 1844145247Sdamien MEM_READ_4(sc, 0x200004); 1845145247Sdamien 1846145247Sdamien MEM_WRITE_1(sc, 0x200000, 0x00); 1847145247Sdamien 1848145247Sdamien return 0; 1849145247Sdamien} 1850145247Sdamien 1851145247Sdamien/* macro to handle unaligned little endian data in firmware image */ 1852145247Sdamien#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 1853145247Sdamien 1854145247Sdamienstatic int 1855145247Sdamieniwi_load_firmware(struct iwi_softc *sc, void *fw, int size) 1856145247Sdamien{ 1857145247Sdamien bus_dma_tag_t dmat; 1858145247Sdamien bus_dmamap_t map; 1859145247Sdamien bus_addr_t physaddr; 1860145247Sdamien void *virtaddr; 1861145247Sdamien u_char *p, *end; 1862145247Sdamien uint32_t sentinel, ctl, src, dst, sum, len, mlen, tmp; 1863145247Sdamien int ntries, error = 0; 1864145247Sdamien 1865145247Sdamien /* allocate DMA memory for mapping firmware image */ 1866145247Sdamien error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 1867145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, size, 1, size, 0, NULL, NULL, &dmat); 1868145247Sdamien if (error != 0) { 1869145247Sdamien device_printf(sc->sc_dev, 1870145247Sdamien "could not create firmware DMA tag\n"); 1871145247Sdamien goto fail1; 1872145247Sdamien } 1873145247Sdamien 1874145247Sdamien error = bus_dmamem_alloc(dmat, &virtaddr, BUS_DMA_NOWAIT, &map); 1875145247Sdamien if (error != 0) { 1876145247Sdamien device_printf(sc->sc_dev, 1877145247Sdamien "could not allocate firmware DMA memory\n"); 1878145247Sdamien goto fail2; 1879145247Sdamien } 1880145247Sdamien 1881145247Sdamien error = bus_dmamap_load(dmat, map, virtaddr, size, iwi_dma_map_addr, 1882145247Sdamien &physaddr, 0); 1883145247Sdamien if (error != 0) { 1884145247Sdamien device_printf(sc->sc_dev, "could not load firmware DMA map\n"); 1885145247Sdamien goto fail3; 1886145247Sdamien } 1887145247Sdamien 1888145247Sdamien /* copy firmware image to DMA memory */ 1889145247Sdamien memcpy(virtaddr, fw, size); 1890145247Sdamien 1891145247Sdamien /* make sure the adapter will get up-to-date values */ 1892145247Sdamien bus_dmamap_sync(dmat, map, BUS_DMASYNC_PREWRITE); 1893145247Sdamien 1894145247Sdamien /* tell the adapter where the command blocks are stored */ 1895145247Sdamien MEM_WRITE_4(sc, 0x3000a0, 0x27000); 1896145247Sdamien 1897145247Sdamien /* 1898145247Sdamien * Store command blocks into adapter's internal memory using register 1899145247Sdamien * indirections. The adapter will read the firmware image through DMA 1900145247Sdamien * using information stored in command blocks. 1901145247Sdamien */ 1902145247Sdamien src = physaddr; 1903145247Sdamien p = virtaddr; 1904145247Sdamien end = p + size; 1905145247Sdamien CSR_WRITE_4(sc, IWI_CSR_AUTOINC_ADDR, 0x27000); 1906145247Sdamien 1907145247Sdamien while (p < end) { 1908145247Sdamien dst = GETLE32(p); p += 4; src += 4; 1909145247Sdamien len = GETLE32(p); p += 4; src += 4; 1910145247Sdamien p += len; 1911145247Sdamien 1912145247Sdamien while (len > 0) { 1913145247Sdamien mlen = min(len, IWI_CB_MAXDATALEN); 1914145247Sdamien 1915145247Sdamien ctl = IWI_CB_DEFAULT_CTL | mlen; 1916145247Sdamien sum = ctl ^ src ^ dst; 1917145247Sdamien 1918145247Sdamien /* write a command block */ 1919145247Sdamien CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, ctl); 1920145247Sdamien CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, src); 1921145247Sdamien CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, dst); 1922145247Sdamien CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, sum); 1923145247Sdamien 1924145247Sdamien src += mlen; 1925145247Sdamien dst += mlen; 1926145247Sdamien len -= mlen; 1927145247Sdamien } 1928145247Sdamien } 1929145247Sdamien 1930145247Sdamien /* write a fictive final command block (sentinel) */ 1931145247Sdamien sentinel = CSR_READ_4(sc, IWI_CSR_AUTOINC_ADDR); 1932145247Sdamien CSR_WRITE_4(sc, IWI_CSR_AUTOINC_DATA, 0); 1933145247Sdamien 1934145247Sdamien tmp = CSR_READ_4(sc, IWI_CSR_RST); 1935145247Sdamien tmp &= ~(IWI_RST_MASTER_DISABLED | IWI_RST_STOP_MASTER); 1936145247Sdamien CSR_WRITE_4(sc, IWI_CSR_RST, tmp); 1937145247Sdamien 1938145247Sdamien /* tell the adapter to start processing command blocks */ 1939145247Sdamien MEM_WRITE_4(sc, 0x3000a4, 0x540100); 1940145247Sdamien 1941145247Sdamien /* wait until the adapter reach the sentinel */ 1942145247Sdamien for (ntries = 0; ntries < 400; ntries++) { 1943145247Sdamien if (MEM_READ_4(sc, 0x3000d0) >= sentinel) 1944145247Sdamien break; 1945145247Sdamien DELAY(100); 1946145247Sdamien } 1947145247Sdamien if (ntries == 400) { 1948145247Sdamien device_printf(sc->sc_dev, 1949145247Sdamien "timeout processing command blocks\n"); 1950145247Sdamien error = EIO; 1951145247Sdamien goto fail4; 1952145247Sdamien } 1953145247Sdamien 1954145247Sdamien /* we're done with command blocks processing */ 1955145247Sdamien MEM_WRITE_4(sc, 0x3000a4, 0x540c00); 1956145247Sdamien 1957145247Sdamien /* allow interrupts so we know when the firmware is inited */ 1958145247Sdamien CSR_WRITE_4(sc, IWI_CSR_INTR_MASK, IWI_INTR_MASK); 1959145247Sdamien 1960145247Sdamien /* tell the adapter to initialize the firmware */ 1961145247Sdamien CSR_WRITE_4(sc, IWI_CSR_RST, 0); 1962145247Sdamien 1963145247Sdamien tmp = CSR_READ_4(sc, IWI_CSR_CTL); 1964145247Sdamien CSR_WRITE_4(sc, IWI_CSR_CTL, tmp | IWI_CTL_ALLOW_STANDBY); 1965145247Sdamien 1966145247Sdamien /* wait at most one second for firmware initialization to complete */ 1967145247Sdamien if ((error = msleep(sc, &sc->sc_mtx, 0, "iwiinit", hz)) != 0) { 1968145247Sdamien device_printf(sc->sc_dev, "timeout waiting for firmware " 1969145247Sdamien "initialization to complete\n"); 1970145247Sdamien goto fail4; 1971145247Sdamien } 1972145247Sdamien 1973145247Sdamienfail4: bus_dmamap_sync(dmat, map, BUS_DMASYNC_POSTWRITE); 1974145247Sdamien bus_dmamap_unload(dmat, map); 1975145247Sdamienfail3: bus_dmamem_free(dmat, virtaddr, map); 1976145247Sdamienfail2: bus_dma_tag_destroy(dmat); 1977145247Sdamienfail1: 1978145247Sdamien return error; 1979145247Sdamien} 1980145247Sdamien 1981145247Sdamien/* 1982145247Sdamien * Store firmware into kernel memory so we can download it when we need to, 1983145247Sdamien * e.g when the adapter wakes up from suspend mode. 1984145247Sdamien */ 1985145247Sdamienstatic int 1986145247Sdamieniwi_cache_firmware(struct iwi_softc *sc, void *data) 1987145247Sdamien{ 1988145247Sdamien struct iwi_firmware *kfw = &sc->fw; 1989145247Sdamien struct iwi_firmware ufw; 1990145247Sdamien int error; 1991145247Sdamien 1992145247Sdamien iwi_free_firmware(sc); 1993145247Sdamien 1994145247Sdamien IWI_UNLOCK(sc); 1995145247Sdamien 1996145247Sdamien if ((error = copyin(data, &ufw, sizeof ufw)) != 0) 1997145247Sdamien goto fail1; 1998145247Sdamien 1999145247Sdamien kfw->boot_size = ufw.boot_size; 2000145247Sdamien kfw->ucode_size = ufw.ucode_size; 2001145247Sdamien kfw->main_size = ufw.main_size; 2002145247Sdamien 2003145247Sdamien kfw->boot = malloc(kfw->boot_size, M_DEVBUF, M_NOWAIT); 2004145247Sdamien if (kfw->boot == NULL) { 2005145247Sdamien error = ENOMEM; 2006145247Sdamien goto fail1; 2007145247Sdamien } 2008145247Sdamien 2009145247Sdamien kfw->ucode = malloc(kfw->ucode_size, M_DEVBUF, M_NOWAIT); 2010145247Sdamien if (kfw->ucode == NULL) { 2011145247Sdamien error = ENOMEM; 2012145247Sdamien goto fail2; 2013145247Sdamien } 2014145247Sdamien 2015145247Sdamien kfw->main = malloc(kfw->main_size, M_DEVBUF, M_NOWAIT); 2016145247Sdamien if (kfw->main == NULL) { 2017145247Sdamien error = ENOMEM; 2018145247Sdamien goto fail3; 2019145247Sdamien } 2020145247Sdamien 2021145247Sdamien if ((error = copyin(ufw.boot, kfw->boot, kfw->boot_size)) != 0) 2022145247Sdamien goto fail4; 2023145247Sdamien 2024145247Sdamien if ((error = copyin(ufw.ucode, kfw->ucode, kfw->ucode_size)) != 0) 2025145247Sdamien goto fail4; 2026145247Sdamien 2027145247Sdamien if ((error = copyin(ufw.main, kfw->main, kfw->main_size)) != 0) 2028145247Sdamien goto fail4; 2029145247Sdamien 2030145247Sdamien DPRINTF(("Firmware cached: boot %u, ucode %u, main %u\n", 2031145247Sdamien kfw->boot_size, kfw->ucode_size, kfw->main_size)); 2032145247Sdamien 2033145247Sdamien IWI_LOCK(sc); 2034145247Sdamien 2035145247Sdamien sc->flags |= IWI_FLAG_FW_CACHED; 2036145247Sdamien 2037145247Sdamien return 0; 2038145247Sdamien 2039145247Sdamienfail4: free(kfw->boot, M_DEVBUF); 2040145247Sdamienfail3: free(kfw->ucode, M_DEVBUF); 2041145247Sdamienfail2: free(kfw->main, M_DEVBUF); 2042145247Sdamienfail1: IWI_LOCK(sc); 2043145247Sdamien 2044145247Sdamien return error; 2045145247Sdamien} 2046145247Sdamien 2047145247Sdamienstatic void 2048145247Sdamieniwi_free_firmware(struct iwi_softc *sc) 2049145247Sdamien{ 2050145247Sdamien if (!(sc->flags & IWI_FLAG_FW_CACHED)) 2051145247Sdamien return; 2052145247Sdamien 2053145247Sdamien free(sc->fw.boot, M_DEVBUF); 2054145247Sdamien free(sc->fw.ucode, M_DEVBUF); 2055145247Sdamien free(sc->fw.main, M_DEVBUF); 2056145247Sdamien 2057145247Sdamien sc->flags &= ~IWI_FLAG_FW_CACHED; 2058145247Sdamien} 2059145247Sdamien 2060145247Sdamienstatic int 2061145247Sdamieniwi_config(struct iwi_softc *sc) 2062145247Sdamien{ 2063145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 2064145247Sdamien struct ifnet *ifp = ic->ic_ifp; 2065145247Sdamien struct iwi_configuration config; 2066145247Sdamien struct iwi_rateset rs; 2067145247Sdamien struct iwi_txpower power; 2068145247Sdamien struct ieee80211_key *wk; 2069145247Sdamien struct iwi_wep_key wepkey; 2070145247Sdamien uint32_t data; 2071145247Sdamien int error, i; 2072145247Sdamien 2073145247Sdamien IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp)); 2074145247Sdamien DPRINTF(("Setting MAC address to %6D\n", ic->ic_myaddr, ":")); 2075145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 2076145247Sdamien IEEE80211_ADDR_LEN, 0); 2077145247Sdamien if (error != 0) 2078145247Sdamien return error; 2079145247Sdamien 2080145247Sdamien memset(&config, 0, sizeof config); 2081145247Sdamien config.bluetooth_coexistence = sc->bluetooth; 2082146500Sdamien config.antenna = sc->antenna; 2083145247Sdamien config.multicast_enabled = 1; 2084146500Sdamien config.answer_pbreq = (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2085146500Sdamien config.disable_unicast_decryption = 1; 2086146500Sdamien config.disable_multicast_decryption = 1; 2087145247Sdamien DPRINTF(("Configuring adapter\n")); 2088145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config, 0); 2089145247Sdamien if (error != 0) 2090145247Sdamien return error; 2091145247Sdamien 2092145247Sdamien data = htole32(IWI_POWER_MODE_CAM); 2093145247Sdamien DPRINTF(("Setting power mode to %u\n", le32toh(data))); 2094145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_POWER_MODE, &data, sizeof data, 0); 2095145247Sdamien if (error != 0) 2096145247Sdamien return error; 2097145247Sdamien 2098145247Sdamien data = htole32(ic->ic_rtsthreshold); 2099145247Sdamien DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 2100145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_RTS_THRESHOLD, &data, sizeof data, 0); 2101145247Sdamien if (error != 0) 2102145247Sdamien return error; 2103145247Sdamien 2104146500Sdamien data = htole32(ic->ic_fragthreshold); 2105146500Sdamien DPRINTF(("Setting fragmentation threshold to %u\n", le32toh(data))); 2106146500Sdamien error = iwi_cmd(sc, IWI_CMD_SET_FRAG_THRESHOLD, &data, sizeof data, 0); 2107146500Sdamien if (error != 0) 2108146500Sdamien return error; 2109146500Sdamien 2110145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS) { 2111145247Sdamien power.mode = IWI_MODE_11B; 2112145247Sdamien power.nchan = 11; 2113145247Sdamien for (i = 0; i < 11; i++) { 2114145247Sdamien power.chan[i].chan = i + 1; 2115145247Sdamien power.chan[i].power = IWI_TXPOWER_MAX; 2116145247Sdamien } 2117145247Sdamien DPRINTF(("Setting .11b channels tx power\n")); 2118145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2119145247Sdamien 0); 2120145247Sdamien if (error != 0) 2121145247Sdamien return error; 2122145247Sdamien 2123145247Sdamien power.mode = IWI_MODE_11G; 2124145247Sdamien DPRINTF(("Setting .11g channels tx power\n")); 2125145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_TX_POWER, &power, sizeof power, 2126145247Sdamien 0); 2127145247Sdamien if (error != 0) 2128145247Sdamien return error; 2129145247Sdamien } 2130145247Sdamien 2131145247Sdamien rs.mode = IWI_MODE_11G; 2132145247Sdamien rs.type = IWI_RATESET_TYPE_SUPPORTED; 2133145247Sdamien rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11G].rs_nrates; 2134145247Sdamien memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11G].rs_rates, 2135145247Sdamien rs.nrates); 2136145247Sdamien DPRINTF(("Setting .11bg supported rates (%u)\n", rs.nrates)); 2137145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2138145247Sdamien if (error != 0) 2139145247Sdamien return error; 2140145247Sdamien 2141145247Sdamien rs.mode = IWI_MODE_11A; 2142145247Sdamien rs.type = IWI_RATESET_TYPE_SUPPORTED; 2143145247Sdamien rs.nrates = ic->ic_sup_rates[IEEE80211_MODE_11A].rs_nrates; 2144145247Sdamien memcpy(rs.rates, ic->ic_sup_rates[IEEE80211_MODE_11A].rs_rates, 2145145247Sdamien rs.nrates); 2146145247Sdamien DPRINTF(("Setting .11a supported rates (%u)\n", rs.nrates)); 2147145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 0); 2148145247Sdamien if (error != 0) 2149145247Sdamien return error; 2150145247Sdamien 2151145247Sdamien data = htole32(arc4random()); 2152145247Sdamien DPRINTF(("Setting initialization vector to %u\n", le32toh(data))); 2153145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_IV, &data, sizeof data, 0); 2154145247Sdamien if (error != 0) 2155145247Sdamien return error; 2156145247Sdamien 2157145247Sdamien for (i = 0; i < IEEE80211_WEP_NKID; i++) { 2158145247Sdamien wk = &ic->ic_crypto.cs_nw_keys[i]; 2159145247Sdamien 2160145247Sdamien wepkey.cmd = IWI_WEP_KEY_CMD_SETKEY; 2161145247Sdamien wepkey.idx = i; 2162145247Sdamien wepkey.len = wk->wk_keylen; 2163145247Sdamien memset(wepkey.key, 0, sizeof wepkey.key); 2164145247Sdamien memcpy(wepkey.key, wk->wk_key, wk->wk_keylen); 2165145247Sdamien DPRINTF(("Setting wep key index %u len %u\n", wepkey.idx, 2166145247Sdamien wepkey.len)); 2167145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_WEP_KEY, &wepkey, 2168145247Sdamien sizeof wepkey, 0); 2169145247Sdamien if (error != 0) 2170145247Sdamien return error; 2171145247Sdamien } 2172145247Sdamien 2173145247Sdamien /* enable adapter */ 2174145247Sdamien DPRINTF(("Enabling adapter\n")); 2175145247Sdamien return iwi_cmd(sc, IWI_CMD_ENABLE, NULL, 0, 0); 2176145247Sdamien} 2177145247Sdamien 2178145247Sdamienstatic int 2179146500Sdamieniwi_set_chan(struct iwi_softc *sc, struct ieee80211_channel *chan) 2180146500Sdamien{ 2181146500Sdamien struct ieee80211com *ic = &sc->sc_ic; 2182146500Sdamien struct iwi_scan scan; 2183146500Sdamien 2184146500Sdamien memset(&scan, 0, sizeof scan); 2185146500Sdamien scan.type = IWI_SCAN_TYPE_PASSIVE; 2186146500Sdamien scan.dwelltime = htole16(2000); 2187146500Sdamien scan.channels[0] = 1 | (IEEE80211_IS_CHAN_5GHZ(chan) ? IWI_CHAN_5GHZ : 2188146500Sdamien IWI_CHAN_2GHZ); 2189146500Sdamien scan.channels[1] = ieee80211_chan2ieee(ic, chan); 2190146500Sdamien 2191146500Sdamien DPRINTF(("Setting channel to %u\n", ieee80211_chan2ieee(ic, chan))); 2192146500Sdamien return iwi_cmd(sc, IWI_CMD_SCAN, &scan, sizeof scan, 1); 2193146500Sdamien} 2194146500Sdamien 2195146500Sdamienstatic int 2196145247Sdamieniwi_scan(struct iwi_softc *sc) 2197145247Sdamien{ 2198145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 2199145247Sdamien struct iwi_scan scan; 2200145247Sdamien uint8_t *p; 2201145247Sdamien int i, count; 2202145247Sdamien 2203145247Sdamien memset(&scan, 0, sizeof scan); 2204145247Sdamien scan.type = IWI_SCAN_TYPE_BROADCAST; 2205146500Sdamien scan.dwelltime = htole16(sc->dwelltime); 2206145247Sdamien 2207145247Sdamien p = scan.channels; 2208145247Sdamien count = 0; 2209145247Sdamien for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2210145247Sdamien if (IEEE80211_IS_CHAN_5GHZ(&ic->ic_channels[i]) && 2211145247Sdamien isset(ic->ic_chan_active, i)) { 2212145247Sdamien *++p = i; 2213145247Sdamien count++; 2214145247Sdamien } 2215145247Sdamien } 2216145247Sdamien *(p - count) = IWI_CHAN_5GHZ | count; 2217145247Sdamien 2218145247Sdamien count = 0; 2219145247Sdamien for (i = 0; i <= IEEE80211_CHAN_MAX; i++) { 2220145247Sdamien if (IEEE80211_IS_CHAN_2GHZ(&ic->ic_channels[i]) && 2221145247Sdamien isset(ic->ic_chan_active, i)) { 2222145247Sdamien *++p = i; 2223145247Sdamien count++; 2224145247Sdamien } 2225145247Sdamien } 2226145247Sdamien *(p - count) = IWI_CHAN_2GHZ | count; 2227145247Sdamien 2228145247Sdamien DPRINTF(("Start scanning\n")); 2229145247Sdamien return iwi_cmd(sc, IWI_CMD_SCAN, &scan, sizeof scan, 1); 2230145247Sdamien} 2231145247Sdamien 2232145247Sdamienstatic int 2233145247Sdamieniwi_auth_and_assoc(struct iwi_softc *sc) 2234145247Sdamien{ 2235145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 2236145247Sdamien struct ifnet *ifp = ic->ic_ifp; 2237145247Sdamien struct ieee80211_node *ni = ic->ic_bss; 2238149338Sdamien struct ieee80211_wme_info wme; 2239145247Sdamien struct iwi_configuration config; 2240145247Sdamien struct iwi_associate assoc; 2241145247Sdamien struct iwi_rateset rs; 2242146500Sdamien uint16_t capinfo; 2243145247Sdamien uint32_t data; 2244145247Sdamien int error; 2245145247Sdamien 2246145247Sdamien if (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) { 2247145247Sdamien memset(&config, 0, sizeof config); 2248145247Sdamien config.bluetooth_coexistence = sc->bluetooth; 2249146500Sdamien config.antenna = sc->antenna; 2250145247Sdamien config.multicast_enabled = 1; 2251145247Sdamien config.use_protection = 1; 2252146500Sdamien config.answer_pbreq = 2253146500Sdamien (ic->ic_opmode == IEEE80211_M_IBSS) ? 1 : 0; 2254146500Sdamien config.disable_unicast_decryption = 1; 2255146500Sdamien config.disable_multicast_decryption = 1; 2256145247Sdamien DPRINTF(("Configuring adapter\n")); 2257145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_CONFIG, &config, sizeof config, 2258145247Sdamien 1); 2259145247Sdamien if (error != 0) 2260145247Sdamien return error; 2261145247Sdamien } 2262145247Sdamien 2263145247Sdamien#ifdef IWI_DEBUG 2264145247Sdamien if (iwi_debug > 0) { 2265145247Sdamien printf("Setting ESSID to "); 2266145247Sdamien ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); 2267145247Sdamien printf("\n"); 2268145247Sdamien } 2269145247Sdamien#endif 2270145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_ESSID, ni->ni_essid, ni->ni_esslen, 1); 2271145247Sdamien if (error != 0) 2272145247Sdamien return error; 2273145247Sdamien 2274145247Sdamien /* the rate set has already been "negociated" */ 2275145247Sdamien rs.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2276145247Sdamien IWI_MODE_11G; 2277145247Sdamien rs.type = IWI_RATESET_TYPE_NEGOCIATED; 2278145247Sdamien rs.nrates = ni->ni_rates.rs_nrates; 2279145247Sdamien memcpy(rs.rates, ni->ni_rates.rs_rates, rs.nrates); 2280145247Sdamien DPRINTF(("Setting negociated rates (%u)\n", rs.nrates)); 2281145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_RATES, &rs, sizeof rs, 1); 2282145247Sdamien if (error != 0) 2283145247Sdamien return error; 2284145247Sdamien 2285149338Sdamien if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) { 2286149338Sdamien wme.wme_id = IEEE80211_ELEMID_VENDOR; 2287149338Sdamien wme.wme_len = sizeof (struct ieee80211_wme_info) - 2; 2288149338Sdamien wme.wme_oui[0] = 0x00; 2289149338Sdamien wme.wme_oui[1] = 0x50; 2290149338Sdamien wme.wme_oui[2] = 0xf2; 2291149338Sdamien wme.wme_type = WME_OUI_TYPE; 2292149338Sdamien wme.wme_subtype = WME_INFO_OUI_SUBTYPE; 2293149338Sdamien wme.wme_version = WME_VERSION; 2294149338Sdamien wme.wme_info = 0; 2295149338Sdamien 2296149338Sdamien DPRINTF(("Setting WME IE (len=%u)\n", wme.wme_len)); 2297149338Sdamien error = iwi_cmd(sc, IWI_CMD_SET_WMEIE, &wme, sizeof wme, 1); 2298149338Sdamien if (error != 0) 2299149338Sdamien return error; 2300149338Sdamien } 2301149338Sdamien 2302146500Sdamien if (ic->ic_opt_ie != NULL) { 2303146500Sdamien DPRINTF(("Setting optional IE (len=%u)\n", ic->ic_opt_ie_len)); 2304146500Sdamien error = iwi_cmd(sc, IWI_CMD_SET_OPTIE, ic->ic_opt_ie, 2305146500Sdamien ic->ic_opt_ie_len, 1); 2306146500Sdamien if (error != 0) 2307146500Sdamien return error; 2308146500Sdamien } 2309146500Sdamien 2310145247Sdamien data = htole32(ni->ni_rssi); 2311145247Sdamien DPRINTF(("Setting sensitivity to %d\n", (int8_t)ni->ni_rssi)); 2312145247Sdamien error = iwi_cmd(sc, IWI_CMD_SET_SENSITIVITY, &data, sizeof data, 1); 2313145247Sdamien if (error != 0) 2314145247Sdamien return error; 2315145247Sdamien 2316145247Sdamien memset(&assoc, 0, sizeof assoc); 2317145247Sdamien assoc.mode = IEEE80211_IS_CHAN_5GHZ(ni->ni_chan) ? IWI_MODE_11A : 2318145247Sdamien IWI_MODE_11G; 2319145247Sdamien assoc.chan = ieee80211_chan2ieee(ic, ni->ni_chan); 2320145247Sdamien if (ni->ni_authmode == IEEE80211_AUTH_SHARED) 2321145247Sdamien assoc.auth = ic->ic_crypto.cs_def_txkey << 4 | IWI_AUTH_SHARED; 2322149338Sdamien if ((ic->ic_flags & IEEE80211_F_WME) && ni->ni_wme_ie != NULL) 2323149338Sdamien assoc.policy |= htole16(IWI_POLICY_WME); 2324146500Sdamien if (ic->ic_opt_ie != NULL) 2325149338Sdamien assoc.policy |= htole16(IWI_POLICY_WPA); 2326145247Sdamien memcpy(assoc.tstamp, ni->ni_tstamp.data, 8); 2327146500Sdamien 2328146500Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS) 2329146500Sdamien capinfo = IEEE80211_CAPINFO_IBSS; 2330146500Sdamien else 2331146500Sdamien capinfo = IEEE80211_CAPINFO_ESS; 2332146500Sdamien if (ic->ic_flags & IEEE80211_F_PRIVACY) 2333146500Sdamien capinfo |= IEEE80211_CAPINFO_PRIVACY; 2334146500Sdamien if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && 2335146500Sdamien IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) 2336146500Sdamien capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; 2337146500Sdamien if (ic->ic_flags & IEEE80211_F_SHSLOT) 2338146500Sdamien capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; 2339146500Sdamien assoc.capinfo = htole16(capinfo); 2340146500Sdamien 2341145247Sdamien assoc.lintval = htole16(ic->ic_lintval); 2342145247Sdamien assoc.intval = htole16(ni->ni_intval); 2343145247Sdamien IEEE80211_ADDR_COPY(assoc.bssid, ni->ni_bssid); 2344145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS) 2345145247Sdamien IEEE80211_ADDR_COPY(assoc.dst, ifp->if_broadcastaddr); 2346145247Sdamien else 2347145247Sdamien IEEE80211_ADDR_COPY(assoc.dst, ni->ni_bssid); 2348145247Sdamien 2349145247Sdamien DPRINTF(("Trying to associate to %6D channel %u auth %u\n", 2350145247Sdamien assoc.bssid, ":", assoc.chan, assoc.auth)); 2351145247Sdamien return iwi_cmd(sc, IWI_CMD_ASSOCIATE, &assoc, sizeof assoc, 1); 2352145247Sdamien} 2353145247Sdamien 2354145247Sdamienstatic void 2355145247Sdamieniwi_init(void *priv) 2356145247Sdamien{ 2357145247Sdamien struct iwi_softc *sc = priv; 2358145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 2359145247Sdamien struct ifnet *ifp = ic->ic_ifp; 2360145247Sdamien struct iwi_firmware *fw = &sc->fw; 2361145247Sdamien struct iwi_rx_data *data; 2362145247Sdamien int i; 2363145247Sdamien 2364145247Sdamien /* exit immediately if firmware has not been ioctl'd */ 2365145247Sdamien if (!(sc->flags & IWI_FLAG_FW_CACHED)) { 2366146247Simp if (!(sc->flags & IWI_FLAG_FW_WARNED)) 2367146247Simp device_printf(sc->sc_dev, "Please load firmware\n"); 2368146247Simp sc->flags |= IWI_FLAG_FW_WARNED; 2369145247Sdamien ifp->if_flags &= ~IFF_UP; 2370145247Sdamien return; 2371145247Sdamien } 2372145247Sdamien 2373145247Sdamien iwi_stop(sc); 2374145247Sdamien 2375145247Sdamien if (iwi_reset(sc) != 0) { 2376145247Sdamien device_printf(sc->sc_dev, "could not reset adapter\n"); 2377145247Sdamien goto fail; 2378145247Sdamien } 2379145247Sdamien 2380145247Sdamien if (iwi_load_firmware(sc, fw->boot, fw->boot_size) != 0) { 2381145247Sdamien device_printf(sc->sc_dev, "could not load boot firmware\n"); 2382145247Sdamien goto fail; 2383145247Sdamien } 2384145247Sdamien 2385145247Sdamien if (iwi_load_ucode(sc, fw->ucode, fw->ucode_size) != 0) { 2386145247Sdamien device_printf(sc->sc_dev, "could not load microcode\n"); 2387145247Sdamien goto fail; 2388145247Sdamien } 2389145247Sdamien 2390145247Sdamien iwi_stop_master(sc); 2391145247Sdamien 2392145247Sdamien CSR_WRITE_4(sc, IWI_CSR_CMD_BASE, sc->cmdq.physaddr); 2393145247Sdamien CSR_WRITE_4(sc, IWI_CSR_CMD_SIZE, sc->cmdq.count); 2394145247Sdamien CSR_WRITE_4(sc, IWI_CSR_CMD_WIDX, sc->cmdq.cur); 2395145247Sdamien 2396149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX1_BASE, sc->txq[0].physaddr); 2397149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX1_SIZE, sc->txq[0].count); 2398149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX1_WIDX, sc->txq[0].cur); 2399145247Sdamien 2400149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX2_BASE, sc->txq[1].physaddr); 2401149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX2_SIZE, sc->txq[1].count); 2402149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX2_WIDX, sc->txq[1].cur); 2403145247Sdamien 2404149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX3_BASE, sc->txq[2].physaddr); 2405149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX3_SIZE, sc->txq[2].count); 2406149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX3_WIDX, sc->txq[2].cur); 2407145247Sdamien 2408149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX4_BASE, sc->txq[3].physaddr); 2409149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX4_SIZE, sc->txq[3].count); 2410149338Sdamien CSR_WRITE_4(sc, IWI_CSR_TX4_WIDX, sc->txq[3].cur); 2411145247Sdamien 2412145247Sdamien for (i = 0; i < sc->rxq.count; i++) { 2413145247Sdamien data = &sc->rxq.data[i]; 2414145247Sdamien CSR_WRITE_4(sc, data->reg, data->physaddr); 2415145247Sdamien } 2416145247Sdamien 2417145247Sdamien CSR_WRITE_4(sc, IWI_CSR_RX_WIDX, sc->rxq.count - 1); 2418145247Sdamien 2419145247Sdamien if (iwi_load_firmware(sc, fw->main, fw->main_size) != 0) { 2420145247Sdamien device_printf(sc->sc_dev, "could not load main firmware\n"); 2421145247Sdamien goto fail; 2422145247Sdamien } 2423145247Sdamien 2424145247Sdamien sc->flags |= IWI_FLAG_FW_INITED; 2425145247Sdamien 2426145247Sdamien if (iwi_config(sc) != 0) { 2427145247Sdamien device_printf(sc->sc_dev, "device configuration failed\n"); 2428145247Sdamien goto fail; 2429145247Sdamien } 2430145247Sdamien 2431149333Sdamien if (ic->ic_opmode != IEEE80211_M_MONITOR) { 2432149333Sdamien if (ic->ic_roaming != IEEE80211_ROAMING_MANUAL) 2433149333Sdamien ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 2434149333Sdamien } else 2435146500Sdamien ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 2436145247Sdamien 2437148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2438148887Srwatson ifp->if_drv_flags |= IFF_DRV_RUNNING; 2439145247Sdamien 2440145247Sdamien return; 2441145247Sdamien 2442145247Sdamienfail: ifp->if_flags &= ~IFF_UP; 2443145247Sdamien iwi_stop(sc); 2444145247Sdamien} 2445145247Sdamien 2446145247Sdamienstatic void 2447145247Sdamieniwi_stop(void *priv) 2448145247Sdamien{ 2449145247Sdamien struct iwi_softc *sc = priv; 2450145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 2451145247Sdamien struct ifnet *ifp = ic->ic_ifp; 2452145247Sdamien 2453145247Sdamien iwi_stop_master(sc); 2454145247Sdamien 2455145247Sdamien CSR_WRITE_4(sc, IWI_CSR_RST, IWI_RST_SOFT_RESET); 2456145247Sdamien 2457145247Sdamien /* reset rings */ 2458145247Sdamien iwi_reset_cmd_ring(sc, &sc->cmdq); 2459149338Sdamien iwi_reset_tx_ring(sc, &sc->txq[0]); 2460149338Sdamien iwi_reset_tx_ring(sc, &sc->txq[1]); 2461149338Sdamien iwi_reset_tx_ring(sc, &sc->txq[2]); 2462149338Sdamien iwi_reset_tx_ring(sc, &sc->txq[3]); 2463145247Sdamien iwi_reset_rx_ring(sc, &sc->rxq); 2464145247Sdamien 2465145247Sdamien sc->sc_tx_timer = 0; 2466145247Sdamien ifp->if_timer = 0; 2467148887Srwatson ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2468145247Sdamien 2469145247Sdamien ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2470145247Sdamien} 2471145247Sdamien 2472145247Sdamienstatic int 2473145247Sdamieniwi_sysctl_stats(SYSCTL_HANDLER_ARGS) 2474145247Sdamien{ 2475145247Sdamien struct iwi_softc *sc = arg1; 2476145247Sdamien uint32_t size, buf[128]; 2477145247Sdamien 2478145247Sdamien if (!(sc->flags & IWI_FLAG_FW_INITED)) { 2479145247Sdamien memset(buf, 0, sizeof buf); 2480145247Sdamien return SYSCTL_OUT(req, buf, sizeof buf); 2481145247Sdamien } 2482145247Sdamien 2483145247Sdamien size = min(CSR_READ_4(sc, IWI_CSR_TABLE0_SIZE), 128 - 1); 2484145247Sdamien CSR_READ_REGION_4(sc, IWI_CSR_TABLE0_BASE, &buf[1], size); 2485145247Sdamien 2486145247Sdamien return SYSCTL_OUT(req, buf, sizeof buf); 2487145247Sdamien} 2488145247Sdamien 2489145247Sdamienstatic int 2490145247Sdamieniwi_sysctl_radio(SYSCTL_HANDLER_ARGS) 2491145247Sdamien{ 2492145247Sdamien struct iwi_softc *sc = arg1; 2493145247Sdamien int val; 2494145247Sdamien 2495145247Sdamien val = (CSR_READ_4(sc, IWI_CSR_IO) & IWI_IO_RADIO_ENABLED) ? 1 : 0; 2496145247Sdamien 2497145247Sdamien return SYSCTL_OUT(req, &val, sizeof val); 2498145247Sdamien} 2499