if_ipw.c revision 147806
1145247Sdamien/* $FreeBSD: head/sys/dev/ipw/if_ipw.c 147806 2005-07-07 02:55:04Z sam $ */ 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/ipw/if_ipw.c 147806 2005-07-07 02:55:04Z sam $"); 32145247Sdamien 33145247Sdamien/*- 34145247Sdamien * Intel(R) PRO/Wireless 2100 MiniPCI 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 <netinet/in.h> 67145247Sdamien#include <netinet/in_systm.h> 68145247Sdamien#include <netinet/in_var.h> 69145247Sdamien#include <netinet/ip.h> 70145247Sdamien#include <netinet/if_ether.h> 71145247Sdamien 72145247Sdamien#include <net80211/ieee80211_var.h> 73145247Sdamien#include <net80211/ieee80211_radiotap.h> 74145247Sdamien 75145247Sdamien#include <dev/ipw/if_ipwreg.h> 76145247Sdamien#include <dev/ipw/if_ipwvar.h> 77145247Sdamien 78145247Sdamien#ifdef IPW_DEBUG 79145247Sdamien#define DPRINTF(x) do { if (ipw_debug > 0) printf x; } while (0) 80145247Sdamien#define DPRINTFN(n, x) do { if (ipw_debug >= (n)) printf x; } while (0) 81145247Sdamienint ipw_debug = 0; 82145247SdamienSYSCTL_INT(_debug, OID_AUTO, ipw, CTLFLAG_RW, &ipw_debug, 0, "ipw debug level"); 83145247Sdamien#else 84145247Sdamien#define DPRINTF(x) 85145247Sdamien#define DPRINTFN(n, x) 86145247Sdamien#endif 87145247Sdamien 88145247SdamienMODULE_DEPEND(ipw, pci, 1, 1, 1); 89145247SdamienMODULE_DEPEND(ipw, wlan, 1, 1, 1); 90145247Sdamien 91145247Sdamienstruct ipw_ident { 92145247Sdamien uint16_t vendor; 93145247Sdamien uint16_t device; 94145247Sdamien const char *name; 95145247Sdamien}; 96145247Sdamien 97145247Sdamienstatic const struct ipw_ident ipw_ident_table[] = { 98145247Sdamien { 0x8086, 0x1043, "Intel(R) PRO/Wireless 2100 MiniPCI" }, 99145247Sdamien 100145247Sdamien { 0, 0, NULL } 101145247Sdamien}; 102145247Sdamien 103145247Sdamienstatic int ipw_dma_alloc(struct ipw_softc *); 104145247Sdamienstatic void ipw_release(struct ipw_softc *); 105145247Sdamienstatic int ipw_media_change(struct ifnet *); 106145247Sdamienstatic void ipw_media_status(struct ifnet *, struct ifmediareq *); 107145247Sdamienstatic int ipw_newstate(struct ieee80211com *, enum ieee80211_state, int); 108145247Sdamienstatic uint16_t ipw_read_prom_word(struct ipw_softc *, uint8_t); 109145247Sdamienstatic void ipw_command_intr(struct ipw_softc *, struct ipw_soft_buf *); 110145247Sdamienstatic void ipw_newstate_intr(struct ipw_softc *, struct ipw_soft_buf *); 111145247Sdamienstatic void ipw_data_intr(struct ipw_softc *, struct ipw_status *, 112145247Sdamien struct ipw_soft_bd *, struct ipw_soft_buf *); 113145247Sdamienstatic void ipw_rx_intr(struct ipw_softc *); 114145247Sdamienstatic void ipw_release_sbd(struct ipw_softc *, struct ipw_soft_bd *); 115145247Sdamienstatic void ipw_tx_intr(struct ipw_softc *); 116145247Sdamienstatic void ipw_intr(void *); 117145247Sdamienstatic void ipw_dma_map_addr(void *, bus_dma_segment_t *, int, int); 118145247Sdamienstatic int ipw_cmd(struct ipw_softc *, uint32_t, void *, uint32_t); 119145247Sdamienstatic int ipw_tx_start(struct ifnet *, struct mbuf *, 120145247Sdamien struct ieee80211_node *); 121145247Sdamienstatic void ipw_start(struct ifnet *); 122145247Sdamienstatic void ipw_watchdog(struct ifnet *); 123145247Sdamienstatic int ipw_ioctl(struct ifnet *, u_long, caddr_t); 124145247Sdamienstatic void ipw_stop_master(struct ipw_softc *); 125145247Sdamienstatic int ipw_reset(struct ipw_softc *); 126145247Sdamienstatic int ipw_load_ucode(struct ipw_softc *, u_char *, int); 127145247Sdamienstatic int ipw_load_firmware(struct ipw_softc *, u_char *, int); 128145247Sdamienstatic int ipw_cache_firmware(struct ipw_softc *, void *); 129145247Sdamienstatic void ipw_free_firmware(struct ipw_softc *); 130145247Sdamienstatic int ipw_config(struct ipw_softc *); 131145247Sdamienstatic void ipw_init(void *); 132145247Sdamienstatic void ipw_stop(void *); 133145247Sdamien#ifdef IPW_DEBUG 134145247Sdamienstatic int ipw_sysctl_stats(SYSCTL_HANDLER_ARGS); 135145247Sdamien#endif 136145247Sdamienstatic int ipw_sysctl_radio(SYSCTL_HANDLER_ARGS); 137145247Sdamienstatic uint32_t ipw_read_table1(struct ipw_softc *, uint32_t); 138145247Sdamienstatic void ipw_write_table1(struct ipw_softc *, uint32_t, uint32_t); 139145247Sdamienstatic int ipw_read_table2(struct ipw_softc *, uint32_t, void *, 140145247Sdamien uint32_t *); 141145247Sdamienstatic void ipw_read_mem_1(struct ipw_softc *, bus_size_t, uint8_t *, 142145247Sdamien bus_size_t); 143145247Sdamienstatic void ipw_write_mem_1(struct ipw_softc *, bus_size_t, uint8_t *, 144145247Sdamien bus_size_t); 145145247Sdamien 146145247Sdamienstatic int ipw_probe(device_t); 147145247Sdamienstatic int ipw_attach(device_t); 148145247Sdamienstatic int ipw_detach(device_t); 149145247Sdamienstatic int ipw_shutdown(device_t); 150145247Sdamienstatic int ipw_suspend(device_t); 151145247Sdamienstatic int ipw_resume(device_t); 152145247Sdamien 153145247Sdamienstatic device_method_t ipw_methods[] = { 154145247Sdamien /* Device interface */ 155145247Sdamien DEVMETHOD(device_probe, ipw_probe), 156145247Sdamien DEVMETHOD(device_attach, ipw_attach), 157145247Sdamien DEVMETHOD(device_detach, ipw_detach), 158145247Sdamien DEVMETHOD(device_shutdown, ipw_shutdown), 159145247Sdamien DEVMETHOD(device_suspend, ipw_suspend), 160145247Sdamien DEVMETHOD(device_resume, ipw_resume), 161145247Sdamien 162145247Sdamien { 0, 0 } 163145247Sdamien}; 164145247Sdamien 165145247Sdamienstatic driver_t ipw_driver = { 166145247Sdamien "ipw", 167145247Sdamien ipw_methods, 168145247Sdamien sizeof (struct ipw_softc) 169145247Sdamien}; 170145247Sdamien 171145247Sdamienstatic devclass_t ipw_devclass; 172145247Sdamien 173145247SdamienDRIVER_MODULE(ipw, pci, ipw_driver, ipw_devclass, 0, 0); 174145247Sdamien 175145247Sdamien/* 176145247Sdamien * Supported rates for 802.11b mode (in 500Kbps unit). 177145247Sdamien */ 178145247Sdamienstatic const struct ieee80211_rateset ipw_rateset_11b = 179145247Sdamien { 4, { 2, 4, 11, 22 } }; 180145247Sdamien 181145247Sdamienstatic __inline uint8_t 182145247SdamienMEM_READ_1(struct ipw_softc *sc, uint32_t addr) 183145247Sdamien{ 184145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, addr); 185145247Sdamien return CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA); 186145247Sdamien} 187145247Sdamien 188145247Sdamienstatic __inline uint32_t 189145247SdamienMEM_READ_4(struct ipw_softc *sc, uint32_t addr) 190145247Sdamien{ 191145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, addr); 192145247Sdamien return CSR_READ_4(sc, IPW_CSR_INDIRECT_DATA); 193145247Sdamien} 194145247Sdamien 195145247Sdamienstatic int 196145247Sdamienipw_probe(device_t dev) 197145247Sdamien{ 198145247Sdamien const struct ipw_ident *ident; 199145247Sdamien 200145247Sdamien for (ident = ipw_ident_table; ident->name != NULL; ident++) { 201145247Sdamien if (pci_get_vendor(dev) == ident->vendor && 202145247Sdamien pci_get_device(dev) == ident->device) { 203145247Sdamien device_set_desc(dev, ident->name); 204145247Sdamien return 0; 205145247Sdamien } 206145247Sdamien } 207145247Sdamien return ENXIO; 208145247Sdamien} 209145247Sdamien 210145247Sdamien/* Base Address Register */ 211145247Sdamien#define IPW_PCI_BAR0 0x10 212145247Sdamien 213145247Sdamienstatic int 214145247Sdamienipw_attach(device_t dev) 215145247Sdamien{ 216145247Sdamien struct ipw_softc *sc = device_get_softc(dev); 217147256Sbrooks struct ifnet *ifp; 218145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 219145247Sdamien uint16_t val; 220145247Sdamien int error, i; 221145247Sdamien 222145247Sdamien sc->sc_dev = dev; 223145247Sdamien 224145247Sdamien mtx_init(&sc->sc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 225145247Sdamien MTX_DEF | MTX_RECURSE); 226145247Sdamien 227145247Sdamien if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 228145247Sdamien device_printf(dev, "chip is in D%d power mode " 229145247Sdamien "-- setting to D0\n", pci_get_powerstate(dev)); 230145247Sdamien pci_set_powerstate(dev, PCI_POWERSTATE_D0); 231145247Sdamien } 232145247Sdamien 233146498Sdamien pci_write_config(dev, 0x41, 0, 1); 234146498Sdamien 235145247Sdamien /* enable bus-mastering */ 236145247Sdamien pci_enable_busmaster(dev); 237145247Sdamien 238145247Sdamien sc->mem_rid = IPW_PCI_BAR0; 239145247Sdamien sc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid, 240145247Sdamien RF_ACTIVE); 241145247Sdamien if (sc->mem == NULL) { 242145247Sdamien device_printf(dev, "could not allocate memory resource\n"); 243145247Sdamien goto fail; 244145247Sdamien } 245145247Sdamien 246145247Sdamien sc->sc_st = rman_get_bustag(sc->mem); 247145247Sdamien sc->sc_sh = rman_get_bushandle(sc->mem); 248145247Sdamien 249145247Sdamien sc->irq_rid = 0; 250145247Sdamien sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid, 251145247Sdamien RF_ACTIVE | RF_SHAREABLE); 252145247Sdamien if (sc->irq == NULL) { 253145247Sdamien device_printf(dev, "could not allocate interrupt resource\n"); 254145247Sdamien goto fail; 255145247Sdamien } 256145247Sdamien 257145247Sdamien if (ipw_reset(sc) != 0) { 258145247Sdamien device_printf(dev, "could not reset adapter\n"); 259145247Sdamien goto fail; 260145247Sdamien } 261145247Sdamien 262145247Sdamien if (ipw_dma_alloc(sc) != 0) { 263145247Sdamien device_printf(dev, "could not allocate DMA resources\n"); 264145247Sdamien goto fail; 265145247Sdamien } 266147757Sdamien 267147256Sbrooks ifp = sc->sc_ifp = if_alloc(IFT_ETHER); 268147256Sbrooks if (ifp == NULL) { 269147256Sbrooks device_printf(dev, "can not if_alloc()\n"); 270147256Sbrooks goto fail; 271147256Sbrooks } 272147757Sdamien 273145247Sdamien ifp->if_softc = sc; 274145247Sdamien if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 275145247Sdamien ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 276145247Sdamien ifp->if_init = ipw_init; 277145247Sdamien ifp->if_ioctl = ipw_ioctl; 278145247Sdamien ifp->if_start = ipw_start; 279145247Sdamien ifp->if_watchdog = ipw_watchdog; 280145247Sdamien IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 281145247Sdamien ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 282145247Sdamien IFQ_SET_READY(&ifp->if_snd); 283145247Sdamien 284145247Sdamien ic->ic_ifp = ifp; 285145247Sdamien ic->ic_phytype = IEEE80211_T_DS; 286145247Sdamien ic->ic_opmode = IEEE80211_M_STA; 287145247Sdamien ic->ic_state = IEEE80211_S_INIT; 288145247Sdamien 289145247Sdamien /* set device capabilities */ 290145247Sdamien ic->ic_caps = IEEE80211_C_SHPREAMBLE | IEEE80211_C_TXPMGT | 291145247Sdamien IEEE80211_C_PMGT | IEEE80211_C_IBSS | IEEE80211_C_MONITOR | 292145247Sdamien IEEE80211_C_WPA; 293145247Sdamien 294145247Sdamien /* read MAC address from EEPROM */ 295145247Sdamien val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 0); 296145247Sdamien ic->ic_myaddr[0] = val >> 8; 297145247Sdamien ic->ic_myaddr[1] = val & 0xff; 298145247Sdamien val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 1); 299145247Sdamien ic->ic_myaddr[2] = val >> 8; 300145247Sdamien ic->ic_myaddr[3] = val & 0xff; 301145247Sdamien val = ipw_read_prom_word(sc, IPW_EEPROM_MAC + 2); 302145247Sdamien ic->ic_myaddr[4] = val >> 8; 303145247Sdamien ic->ic_myaddr[5] = val & 0xff; 304145247Sdamien 305145247Sdamien /* set supported .11b rates */ 306145247Sdamien ic->ic_sup_rates[IEEE80211_MODE_11B] = ipw_rateset_11b; 307145247Sdamien 308145247Sdamien /* set supported .11b channels (read from EEPROM) */ 309145247Sdamien if ((val = ipw_read_prom_word(sc, IPW_EEPROM_CHANNEL_LIST)) == 0) 310145247Sdamien val = 0x7ff; /* default to channels 1-11 */ 311145247Sdamien val <<= 1; 312145247Sdamien for (i = 1; i < 16; i++) { 313145247Sdamien if (val & (1 << i)) { 314145247Sdamien ic->ic_channels[i].ic_freq = 315145247Sdamien ieee80211_ieee2mhz(i, IEEE80211_CHAN_B); 316145247Sdamien ic->ic_channels[i].ic_flags = IEEE80211_CHAN_B; 317145247Sdamien } 318145247Sdamien } 319145247Sdamien 320145247Sdamien /* check support for radio transmitter switch in EEPROM */ 321145247Sdamien if (!(ipw_read_prom_word(sc, IPW_EEPROM_RADIO) & 8)) 322145247Sdamien sc->flags |= IPW_FLAG_HAS_RADIO_SWITCH; 323145247Sdamien 324145247Sdamien ieee80211_ifattach(ic); 325145247Sdamien /* override state transition machine */ 326145247Sdamien sc->sc_newstate = ic->ic_newstate; 327145247Sdamien ic->ic_newstate = ipw_newstate; 328145247Sdamien ieee80211_media_init(ic, ipw_media_change, ipw_media_status); 329145247Sdamien 330145247Sdamien bpfattach2(ifp, DLT_IEEE802_11_RADIO, 331145247Sdamien sizeof (struct ieee80211_frame) + 64, &sc->sc_drvbpf); 332145247Sdamien 333145247Sdamien sc->sc_rxtap_len = sizeof sc->sc_rxtapu; 334145247Sdamien sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 335145247Sdamien sc->sc_rxtap.wr_ihdr.it_present = htole32(IPW_RX_RADIOTAP_PRESENT); 336145247Sdamien 337145247Sdamien sc->sc_txtap_len = sizeof sc->sc_txtapu; 338145247Sdamien sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 339145247Sdamien sc->sc_txtap.wt_ihdr.it_present = htole32(IPW_TX_RADIOTAP_PRESENT); 340145247Sdamien 341145247Sdamien /* 342145247Sdamien * Add a few sysctl knobs. 343145247Sdamien */ 344145247Sdamien sc->dwelltime = 100; 345145247Sdamien 346145247Sdamien SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 347145247Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "radio", 348145247Sdamien CTLTYPE_INT | CTLFLAG_RD, sc, 0, ipw_sysctl_radio, "I", 349145247Sdamien "radio transmitter switch state (0=off, 1=on)"); 350145247Sdamien 351145247Sdamien#ifdef IPW_DEBUG 352145247Sdamien SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 353145247Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "stats", 354145247Sdamien CTLTYPE_OPAQUE | CTLFLAG_RD, sc, 0, ipw_sysctl_stats, "S", 355145247Sdamien "statistics"); 356145247Sdamien#endif 357145247Sdamien 358145247Sdamien SYSCTL_ADD_INT(device_get_sysctl_ctx(dev), 359145247Sdamien SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "dwell", 360145247Sdamien CTLFLAG_RW, &sc->dwelltime, 0, 361145247Sdamien "channel dwell time (ms) for AP/station scanning"); 362145247Sdamien 363145247Sdamien /* 364145247Sdamien * Hook our interrupt after all initialization is complete. 365145247Sdamien */ 366145247Sdamien error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE, 367145247Sdamien ipw_intr, sc, &sc->sc_ih); 368145247Sdamien if (error != 0) { 369145247Sdamien device_printf(dev, "could not set up interrupt\n"); 370145247Sdamien goto fail; 371145247Sdamien } 372145247Sdamien 373145247Sdamien if (bootverbose) 374145247Sdamien ieee80211_announce(ic); 375145247Sdamien 376145247Sdamien return 0; 377145247Sdamien 378145247Sdamienfail: ipw_detach(dev); 379145247Sdamien return ENXIO; 380145247Sdamien} 381145247Sdamien 382145247Sdamienstatic int 383145247Sdamienipw_detach(device_t dev) 384145247Sdamien{ 385145247Sdamien struct ipw_softc *sc = device_get_softc(dev); 386145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 387145247Sdamien struct ifnet *ifp = ic->ic_ifp; 388145247Sdamien 389145247Sdamien IPW_LOCK(sc); 390145247Sdamien 391145247Sdamien ipw_stop(sc); 392145247Sdamien ipw_free_firmware(sc); 393145247Sdamien 394145247Sdamien IPW_UNLOCK(sc); 395145247Sdamien 396147757Sdamien if (ifp != NULL) { 397147256Sbrooks bpfdetach(ifp); 398147757Sdamien ieee80211_ifdetach(ic); 399147256Sbrooks if_free(ifp); 400147757Sdamien } 401145247Sdamien 402145247Sdamien ipw_release(sc); 403145247Sdamien 404145247Sdamien if (sc->irq != NULL) { 405145247Sdamien bus_teardown_intr(dev, sc->irq, sc->sc_ih); 406145247Sdamien bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq); 407145247Sdamien } 408145247Sdamien 409145247Sdamien if (sc->mem != NULL) 410145247Sdamien bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid, sc->mem); 411145247Sdamien 412145247Sdamien mtx_destroy(&sc->sc_mtx); 413145247Sdamien 414145247Sdamien return 0; 415145247Sdamien} 416145247Sdamien 417145247Sdamienstatic int 418145247Sdamienipw_dma_alloc(struct ipw_softc *sc) 419145247Sdamien{ 420145247Sdamien struct ipw_soft_bd *sbd; 421145247Sdamien struct ipw_soft_hdr *shdr; 422145247Sdamien struct ipw_soft_buf *sbuf; 423145247Sdamien bus_addr_t physaddr; 424145247Sdamien int error, i; 425145247Sdamien 426145247Sdamien /* 427145247Sdamien * Allocate and map tx ring. 428145247Sdamien */ 429145247Sdamien error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 430145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL, 431145247Sdamien NULL, &sc->tbd_dmat); 432145247Sdamien if (error != 0) { 433145247Sdamien device_printf(sc->sc_dev, "could not create tx ring DMA tag\n"); 434145247Sdamien goto fail; 435145247Sdamien } 436145247Sdamien 437145247Sdamien error = bus_dmamem_alloc(sc->tbd_dmat, (void **)&sc->tbd_list, 438145247Sdamien BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->tbd_map); 439145247Sdamien if (error != 0) { 440145247Sdamien device_printf(sc->sc_dev, 441145247Sdamien "could not allocate tx ring DMA memory\n"); 442145247Sdamien goto fail; 443145247Sdamien } 444145247Sdamien 445145247Sdamien error = bus_dmamap_load(sc->tbd_dmat, sc->tbd_map, sc->tbd_list, 446145247Sdamien IPW_TBD_SZ, ipw_dma_map_addr, &sc->tbd_phys, 0); 447145247Sdamien if (error != 0) { 448145247Sdamien device_printf(sc->sc_dev, "could not map tx ring DMA memory\n"); 449145247Sdamien goto fail; 450145247Sdamien } 451145247Sdamien 452145247Sdamien /* 453145247Sdamien * Allocate and map rx ring. 454145247Sdamien */ 455145247Sdamien error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 456145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL, 457145247Sdamien NULL, &sc->rbd_dmat); 458145247Sdamien if (error != 0) { 459145247Sdamien device_printf(sc->sc_dev, "could not create rx ring DMA tag\n"); 460145247Sdamien goto fail; 461145247Sdamien } 462145247Sdamien 463145247Sdamien error = bus_dmamem_alloc(sc->rbd_dmat, (void **)&sc->rbd_list, 464145247Sdamien BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->rbd_map); 465145247Sdamien if (error != 0) { 466145247Sdamien device_printf(sc->sc_dev, 467145247Sdamien "could not allocate rx ring DMA memory\n"); 468145247Sdamien goto fail; 469145247Sdamien } 470145247Sdamien 471145247Sdamien error = bus_dmamap_load(sc->rbd_dmat, sc->rbd_map, sc->rbd_list, 472145247Sdamien IPW_RBD_SZ, ipw_dma_map_addr, &sc->rbd_phys, 0); 473145247Sdamien if (error != 0) { 474145247Sdamien device_printf(sc->sc_dev, "could not map rx ring DMA memory\n"); 475145247Sdamien goto fail; 476145247Sdamien } 477145247Sdamien 478145247Sdamien /* 479145247Sdamien * Allocate and map status ring. 480145247Sdamien */ 481145247Sdamien error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT, 482145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0, 483145247Sdamien NULL, NULL, &sc->status_dmat); 484145247Sdamien if (error != 0) { 485145247Sdamien device_printf(sc->sc_dev, 486145247Sdamien "could not create status ring DMA tag\n"); 487145247Sdamien goto fail; 488145247Sdamien } 489145247Sdamien 490145247Sdamien error = bus_dmamem_alloc(sc->status_dmat, (void **)&sc->status_list, 491145247Sdamien BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->status_map); 492145247Sdamien if (error != 0) { 493145247Sdamien device_printf(sc->sc_dev, 494145247Sdamien "could not allocate status ring DMA memory\n"); 495145247Sdamien goto fail; 496145247Sdamien } 497145247Sdamien 498145247Sdamien error = bus_dmamap_load(sc->status_dmat, sc->status_map, 499145247Sdamien sc->status_list, IPW_STATUS_SZ, ipw_dma_map_addr, &sc->status_phys, 500145247Sdamien 0); 501145247Sdamien if (error != 0) { 502145247Sdamien device_printf(sc->sc_dev, 503145247Sdamien "could not map status ring DMA memory\n"); 504145247Sdamien goto fail; 505145247Sdamien } 506145247Sdamien 507145247Sdamien /* 508145247Sdamien * Allocate command DMA map. 509145247Sdamien */ 510145247Sdamien error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 511145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1, 512145247Sdamien sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat); 513145247Sdamien if (error != 0) { 514145247Sdamien device_printf(sc->sc_dev, "could not create command DMA tag\n"); 515145247Sdamien goto fail; 516145247Sdamien } 517145247Sdamien 518145247Sdamien error = bus_dmamap_create(sc->cmd_dmat, 0, &sc->cmd_map); 519145247Sdamien if (error != 0) { 520145247Sdamien device_printf(sc->sc_dev, 521145247Sdamien "could not create command DMA map\n"); 522145247Sdamien goto fail; 523145247Sdamien } 524145247Sdamien 525145247Sdamien /* 526145247Sdamien * Allocate headers DMA maps. 527145247Sdamien */ 528145247Sdamien error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 529145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1, 530145247Sdamien sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat); 531145247Sdamien if (error != 0) { 532145247Sdamien device_printf(sc->sc_dev, "could not create header DMA tag\n"); 533145247Sdamien goto fail; 534145247Sdamien } 535145247Sdamien 536145247Sdamien SLIST_INIT(&sc->free_shdr); 537145247Sdamien for (i = 0; i < IPW_NDATA; i++) { 538145247Sdamien shdr = &sc->shdr_list[i]; 539145247Sdamien error = bus_dmamap_create(sc->hdr_dmat, 0, &shdr->map); 540145247Sdamien if (error != 0) { 541145247Sdamien device_printf(sc->sc_dev, 542145247Sdamien "could not create header DMA map\n"); 543145247Sdamien goto fail; 544145247Sdamien } 545145247Sdamien SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 546145247Sdamien } 547145247Sdamien 548145247Sdamien /* 549145247Sdamien * Allocate tx buffers DMA maps. 550145247Sdamien */ 551145247Sdamien error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 552145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0, 553145247Sdamien NULL, NULL, &sc->txbuf_dmat); 554145247Sdamien if (error != 0) { 555145247Sdamien device_printf(sc->sc_dev, "could not create tx DMA tag\n"); 556145247Sdamien goto fail; 557145247Sdamien } 558145247Sdamien 559145247Sdamien SLIST_INIT(&sc->free_sbuf); 560145247Sdamien for (i = 0; i < IPW_NDATA; i++) { 561145247Sdamien sbuf = &sc->tx_sbuf_list[i]; 562145247Sdamien error = bus_dmamap_create(sc->txbuf_dmat, 0, &sbuf->map); 563145247Sdamien if (error != 0) { 564145247Sdamien device_printf(sc->sc_dev, 565145247Sdamien "could not create tx DMA map\n"); 566145247Sdamien goto fail; 567145247Sdamien } 568145247Sdamien SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 569145247Sdamien } 570145247Sdamien 571145247Sdamien /* 572145247Sdamien * Initialize tx ring. 573145247Sdamien */ 574145247Sdamien for (i = 0; i < IPW_NTBD; i++) { 575145247Sdamien sbd = &sc->stbd_list[i]; 576145247Sdamien sbd->bd = &sc->tbd_list[i]; 577145247Sdamien sbd->type = IPW_SBD_TYPE_NOASSOC; 578145247Sdamien } 579145247Sdamien 580145247Sdamien /* 581145247Sdamien * Pre-allocate rx buffers and DMA maps. 582145247Sdamien */ 583145247Sdamien error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, 584145247Sdamien BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_NRBD, MCLBYTES, 0, 585145247Sdamien NULL, NULL, &sc->rxbuf_dmat); 586145247Sdamien if (error != 0) { 587145247Sdamien device_printf(sc->sc_dev, "could not create rx DMA tag\n"); 588145247Sdamien goto fail; 589145247Sdamien } 590145247Sdamien 591145247Sdamien for (i = 0; i < IPW_NRBD; i++) { 592145247Sdamien sbd = &sc->srbd_list[i]; 593145247Sdamien sbuf = &sc->rx_sbuf_list[i]; 594145247Sdamien sbd->bd = &sc->rbd_list[i]; 595145247Sdamien 596145247Sdamien sbuf->m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 597145247Sdamien if (sbuf->m == NULL) { 598145247Sdamien device_printf(sc->sc_dev, 599145247Sdamien "could not allocate rx mbuf\n"); 600145247Sdamien error = ENOMEM; 601145247Sdamien goto fail; 602145247Sdamien } 603145247Sdamien 604145247Sdamien error = bus_dmamap_create(sc->rxbuf_dmat, 0, &sbuf->map); 605145247Sdamien if (error != 0) { 606145247Sdamien device_printf(sc->sc_dev, 607145247Sdamien "could not create rx DMA map\n"); 608145247Sdamien goto fail; 609145247Sdamien } 610145247Sdamien 611145247Sdamien error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, 612145247Sdamien mtod(sbuf->m, void *), MCLBYTES, ipw_dma_map_addr, 613145247Sdamien &physaddr, 0); 614145247Sdamien if (error != 0) { 615145247Sdamien device_printf(sc->sc_dev, 616145247Sdamien "could not map rx DMA memory\n"); 617145247Sdamien goto fail; 618145247Sdamien } 619145247Sdamien 620145247Sdamien sbd->type = IPW_SBD_TYPE_DATA; 621145247Sdamien sbd->priv = sbuf; 622145247Sdamien sbd->bd->physaddr = htole32(physaddr); 623145247Sdamien sbd->bd->len = htole32(MCLBYTES); 624145247Sdamien } 625145247Sdamien 626145247Sdamien bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 627145247Sdamien 628145247Sdamien return 0; 629145247Sdamien 630145247Sdamienfail: ipw_release(sc); 631145247Sdamien return error; 632145247Sdamien} 633145247Sdamien 634145247Sdamienstatic void 635145247Sdamienipw_release(struct ipw_softc *sc) 636145247Sdamien{ 637145247Sdamien struct ipw_soft_buf *sbuf; 638145247Sdamien int i; 639145247Sdamien 640145247Sdamien if (sc->tbd_dmat != NULL) { 641145247Sdamien if (sc->stbd_list != NULL) { 642145247Sdamien bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map); 643145247Sdamien bus_dmamem_free(sc->tbd_dmat, sc->tbd_list, 644145247Sdamien sc->tbd_map); 645145247Sdamien } 646145247Sdamien bus_dma_tag_destroy(sc->tbd_dmat); 647145247Sdamien } 648145247Sdamien 649145247Sdamien if (sc->rbd_dmat != NULL) { 650145247Sdamien if (sc->rbd_list != NULL) { 651145247Sdamien bus_dmamap_unload(sc->rbd_dmat, sc->rbd_map); 652145247Sdamien bus_dmamem_free(sc->rbd_dmat, sc->rbd_list, 653145247Sdamien sc->rbd_map); 654145247Sdamien } 655145247Sdamien bus_dma_tag_destroy(sc->rbd_dmat); 656145247Sdamien } 657145247Sdamien 658145247Sdamien if (sc->status_dmat != NULL) { 659145247Sdamien if (sc->status_list != NULL) { 660145247Sdamien bus_dmamap_unload(sc->status_dmat, sc->status_map); 661145247Sdamien bus_dmamem_free(sc->status_dmat, sc->status_list, 662145247Sdamien sc->status_map); 663145247Sdamien } 664145247Sdamien bus_dma_tag_destroy(sc->status_dmat); 665145247Sdamien } 666145247Sdamien 667145247Sdamien for (i = 0; i < IPW_NTBD; i++) 668145247Sdamien ipw_release_sbd(sc, &sc->stbd_list[i]); 669145247Sdamien 670145247Sdamien if (sc->cmd_dmat != NULL) { 671145247Sdamien bus_dmamap_destroy(sc->cmd_dmat, sc->cmd_map); 672145247Sdamien bus_dma_tag_destroy(sc->cmd_dmat); 673145247Sdamien } 674145247Sdamien 675145247Sdamien if (sc->hdr_dmat != NULL) { 676145247Sdamien for (i = 0; i < IPW_NDATA; i++) 677145247Sdamien bus_dmamap_destroy(sc->hdr_dmat, sc->shdr_list[i].map); 678145247Sdamien bus_dma_tag_destroy(sc->hdr_dmat); 679145247Sdamien } 680145247Sdamien 681145247Sdamien if (sc->txbuf_dmat != NULL) { 682145247Sdamien for (i = 0; i < IPW_NDATA; i++) { 683145247Sdamien bus_dmamap_destroy(sc->txbuf_dmat, 684145247Sdamien sc->tx_sbuf_list[i].map); 685145247Sdamien } 686145247Sdamien bus_dma_tag_destroy(sc->txbuf_dmat); 687145247Sdamien } 688145247Sdamien 689145247Sdamien if (sc->rxbuf_dmat != NULL) { 690145247Sdamien for (i = 0; i < IPW_NRBD; i++) { 691145247Sdamien sbuf = &sc->rx_sbuf_list[i]; 692145247Sdamien if (sbuf->m != NULL) { 693145247Sdamien bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, 694145247Sdamien BUS_DMASYNC_POSTREAD); 695145247Sdamien bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map); 696145247Sdamien m_freem(sbuf->m); 697145247Sdamien } 698145247Sdamien bus_dmamap_destroy(sc->rxbuf_dmat, sbuf->map); 699145247Sdamien } 700145247Sdamien bus_dma_tag_destroy(sc->rxbuf_dmat); 701145247Sdamien } 702145247Sdamien} 703145247Sdamien 704145247Sdamienstatic int 705145247Sdamienipw_shutdown(device_t dev) 706145247Sdamien{ 707145247Sdamien struct ipw_softc *sc = device_get_softc(dev); 708145247Sdamien 709145247Sdamien ipw_stop(sc); 710145247Sdamien 711145247Sdamien return 0; 712145247Sdamien} 713145247Sdamien 714145247Sdamienstatic int 715145247Sdamienipw_suspend(device_t dev) 716145247Sdamien{ 717145247Sdamien struct ipw_softc *sc = device_get_softc(dev); 718145247Sdamien 719145247Sdamien ipw_stop(sc); 720145247Sdamien 721145247Sdamien return 0; 722145247Sdamien} 723145247Sdamien 724145247Sdamienstatic int 725145247Sdamienipw_resume(device_t dev) 726145247Sdamien{ 727145247Sdamien struct ipw_softc *sc = device_get_softc(dev); 728145247Sdamien struct ifnet *ifp = sc->sc_ic.ic_ifp; 729145247Sdamien 730145247Sdamien IPW_LOCK(sc); 731145247Sdamien 732146498Sdamien pci_write_config(dev, 0x41, 0, 1); 733146498Sdamien 734145247Sdamien if (ifp->if_flags & IFF_UP) { 735145247Sdamien ifp->if_init(ifp->if_softc); 736145247Sdamien if (ifp->if_flags & IFF_RUNNING) 737145247Sdamien ifp->if_start(ifp); 738145247Sdamien } 739145247Sdamien 740145247Sdamien IPW_UNLOCK(sc); 741145247Sdamien 742145247Sdamien return 0; 743145247Sdamien} 744145247Sdamien 745145247Sdamienstatic int 746145247Sdamienipw_media_change(struct ifnet *ifp) 747145247Sdamien{ 748145247Sdamien struct ipw_softc *sc = ifp->if_softc; 749145247Sdamien int error; 750145247Sdamien 751145247Sdamien IPW_LOCK(sc); 752145247Sdamien 753145247Sdamien error = ieee80211_media_change(ifp); 754145247Sdamien if (error != ENETRESET) { 755145247Sdamien IPW_UNLOCK(sc); 756145247Sdamien return error; 757145247Sdamien } 758145247Sdamien 759145247Sdamien if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING)) 760145247Sdamien ipw_init(sc); 761145247Sdamien 762145247Sdamien IPW_UNLOCK(sc); 763145247Sdamien 764145247Sdamien return 0; 765145247Sdamien} 766145247Sdamien 767145247Sdamien/* 768145247Sdamien * The firmware automaticly adapt the transmit speed. We report the current 769145247Sdamien * transmit speed here. 770145247Sdamien */ 771145247Sdamienstatic void 772145247Sdamienipw_media_status(struct ifnet *ifp, struct ifmediareq *imr) 773145247Sdamien{ 774145247Sdamien#define N(a) (sizeof (a) / sizeof (a[0])) 775145247Sdamien struct ipw_softc *sc = ifp->if_softc; 776145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 777145247Sdamien static const struct { 778145247Sdamien uint32_t val; 779145247Sdamien int rate; 780145247Sdamien } rates[] = { 781145247Sdamien { IPW_RATE_DS1, 2 }, 782145247Sdamien { IPW_RATE_DS2, 4 }, 783145247Sdamien { IPW_RATE_DS5, 11 }, 784145247Sdamien { IPW_RATE_DS11, 22 }, 785145247Sdamien }; 786145247Sdamien uint32_t val; 787145247Sdamien int rate, i; 788145247Sdamien 789145247Sdamien imr->ifm_status = IFM_AVALID; 790145247Sdamien imr->ifm_active = IFM_IEEE80211; 791145247Sdamien if (ic->ic_state == IEEE80211_S_RUN) 792145247Sdamien imr->ifm_status |= IFM_ACTIVE; 793145247Sdamien 794145247Sdamien /* read current transmission rate from adapter */ 795145247Sdamien val = ipw_read_table1(sc, IPW_INFO_CURRENT_TX_RATE) & 0xf; 796145247Sdamien 797145247Sdamien /* convert ipw rate to 802.11 rate */ 798145247Sdamien for (i = 0; i < N(rates) && rates[i].val != val; i++); 799145247Sdamien rate = (i < N(rates)) ? rates[i].rate : 0; 800145247Sdamien 801145247Sdamien imr->ifm_active |= IFM_IEEE80211_11B; 802145247Sdamien imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); 803145247Sdamien switch (ic->ic_opmode) { 804145247Sdamien case IEEE80211_M_STA: 805145247Sdamien break; 806145247Sdamien 807145247Sdamien case IEEE80211_M_IBSS: 808145247Sdamien imr->ifm_active |= IFM_IEEE80211_IBSS; 809145247Sdamien break; 810145247Sdamien 811145247Sdamien case IEEE80211_M_MONITOR: 812145247Sdamien imr->ifm_active |= IFM_IEEE80211_MONITOR; 813145247Sdamien break; 814145247Sdamien 815145247Sdamien case IEEE80211_M_AHDEMO: 816145247Sdamien case IEEE80211_M_HOSTAP: 817145247Sdamien /* should not get there */ 818145247Sdamien break; 819145247Sdamien } 820145247Sdamien#undef N 821145247Sdamien} 822145247Sdamien 823145247Sdamienstatic int 824145247Sdamienipw_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 825145247Sdamien{ 826145247Sdamien struct ifnet *ifp = ic->ic_ifp; 827145247Sdamien struct ipw_softc *sc = ifp->if_softc; 828145247Sdamien struct ieee80211_node *ni; 829145247Sdamien uint8_t macaddr[IEEE80211_ADDR_LEN]; 830145247Sdamien uint32_t len; 831145247Sdamien 832145247Sdamien switch (nstate) { 833145247Sdamien case IEEE80211_S_RUN: 834145247Sdamien DELAY(200); /* firmware needs a short delay here */ 835145247Sdamien 836145247Sdamien len = IEEE80211_ADDR_LEN; 837145247Sdamien ipw_read_table2(sc, IPW_INFO_CURRENT_BSSID, macaddr, &len); 838145247Sdamien 839145247Sdamien ni = ieee80211_find_node(&ic->ic_scan, macaddr); 840145247Sdamien if (ni == NULL) 841145247Sdamien break; 842145247Sdamien 843145247Sdamien ieee80211_ref_node(ni); 844145247Sdamien ieee80211_sta_join(ic, ni); 845145247Sdamien ieee80211_node_authorize(ic, ni); 846145247Sdamien 847145247Sdamien if (ic->ic_opmode == IEEE80211_M_STA) 848145247Sdamien ieee80211_notify_node_join(ic, ni, 1); 849145247Sdamien break; 850145247Sdamien 851145247Sdamien case IEEE80211_S_INIT: 852145247Sdamien case IEEE80211_S_SCAN: 853145247Sdamien case IEEE80211_S_AUTH: 854145247Sdamien case IEEE80211_S_ASSOC: 855145247Sdamien break; 856145247Sdamien } 857145247Sdamien 858145247Sdamien ic->ic_state = nstate; 859145247Sdamien return 0; 860145247Sdamien} 861145247Sdamien 862145247Sdamien/* 863145247Sdamien * Read 16 bits at address 'addr' from the serial EEPROM. 864145247Sdamien */ 865145247Sdamienstatic uint16_t 866145247Sdamienipw_read_prom_word(struct ipw_softc *sc, uint8_t addr) 867145247Sdamien{ 868145247Sdamien uint32_t tmp; 869145247Sdamien uint16_t val; 870145247Sdamien int n; 871145247Sdamien 872145247Sdamien /* clock C once before the first command */ 873145247Sdamien IPW_EEPROM_CTL(sc, 0); 874145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 875145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 876145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 877145247Sdamien 878145247Sdamien /* write start bit (1) */ 879145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D); 880145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C); 881145247Sdamien 882145247Sdamien /* write READ opcode (10) */ 883145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D); 884145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_D | IPW_EEPROM_C); 885145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 886145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 887145247Sdamien 888145247Sdamien /* write address A7-A0 */ 889145247Sdamien for (n = 7; n >= 0; n--) { 890145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | 891145247Sdamien (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D)); 892145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | 893145247Sdamien (((addr >> n) & 1) << IPW_EEPROM_SHIFT_D) | IPW_EEPROM_C); 894145247Sdamien } 895145247Sdamien 896145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 897145247Sdamien 898145247Sdamien /* read data Q15-Q0 */ 899145247Sdamien val = 0; 900145247Sdamien for (n = 15; n >= 0; n--) { 901145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S | IPW_EEPROM_C); 902145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 903145247Sdamien tmp = MEM_READ_4(sc, IPW_MEM_EEPROM_CTL); 904145247Sdamien val |= ((tmp & IPW_EEPROM_Q) >> IPW_EEPROM_SHIFT_Q) << n; 905145247Sdamien } 906145247Sdamien 907145247Sdamien IPW_EEPROM_CTL(sc, 0); 908145247Sdamien 909145247Sdamien /* clear Chip Select and clock C */ 910145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_S); 911145247Sdamien IPW_EEPROM_CTL(sc, 0); 912145247Sdamien IPW_EEPROM_CTL(sc, IPW_EEPROM_C); 913145247Sdamien 914145247Sdamien return le16toh(val); 915145247Sdamien} 916145247Sdamien 917145247Sdamienstatic void 918145247Sdamienipw_command_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 919145247Sdamien{ 920145247Sdamien struct ipw_cmd *cmd; 921145247Sdamien 922145247Sdamien bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 923145247Sdamien 924145247Sdamien cmd = mtod(sbuf->m, struct ipw_cmd *); 925145247Sdamien 926145247Sdamien DPRINTFN(2, ("cmd ack'ed (%u, %u, %u, %u, %u)\n", le32toh(cmd->type), 927145247Sdamien le32toh(cmd->subtype), le32toh(cmd->seq), le32toh(cmd->len), 928145247Sdamien le32toh(cmd->status))); 929145247Sdamien 930145247Sdamien wakeup(sc); 931145247Sdamien} 932145247Sdamien 933145247Sdamienstatic void 934145247Sdamienipw_newstate_intr(struct ipw_softc *sc, struct ipw_soft_buf *sbuf) 935145247Sdamien{ 936145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 937145247Sdamien uint32_t state; 938145247Sdamien 939145247Sdamien bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 940145247Sdamien 941145247Sdamien state = le32toh(*mtod(sbuf->m, uint32_t *)); 942145247Sdamien 943145247Sdamien DPRINTFN(2, ("entering state %u\n", state)); 944145247Sdamien 945145247Sdamien switch (state) { 946145247Sdamien case IPW_STATE_ASSOCIATED: 947145247Sdamien ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 948145247Sdamien break; 949145247Sdamien 950145247Sdamien case IPW_STATE_SCANNING: 951145247Sdamien /* don't leave run state on background scan */ 952145247Sdamien if (ic->ic_state != IEEE80211_S_RUN) 953145247Sdamien ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 954145247Sdamien 955145247Sdamien ic->ic_flags |= IEEE80211_F_SCAN; 956145247Sdamien break; 957145247Sdamien 958145247Sdamien case IPW_STATE_SCAN_COMPLETE: 959145247Sdamien ieee80211_notify_scan_done(ic); 960145247Sdamien ic->ic_flags &= ~IEEE80211_F_SCAN; 961145247Sdamien break; 962145247Sdamien 963145247Sdamien case IPW_STATE_ASSOCIATION_LOST: 964145247Sdamien ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 965145247Sdamien break; 966145247Sdamien 967145247Sdamien case IPW_STATE_RADIO_DISABLED: 968145247Sdamien ic->ic_ifp->if_flags &= ~IFF_UP; 969145247Sdamien ipw_stop(sc); 970145247Sdamien break; 971145247Sdamien } 972145247Sdamien} 973145247Sdamien 974145247Sdamien/* 975145247Sdamien * XXX: Hack to set the current channel to the value advertised in beacons or 976145247Sdamien * probe responses. Only used during AP detection. 977145247Sdamien */ 978145247Sdamienstatic void 979145247Sdamienipw_fix_channel(struct ieee80211com *ic, struct mbuf *m) 980145247Sdamien{ 981145247Sdamien struct ieee80211_frame *wh; 982145247Sdamien uint8_t subtype; 983145247Sdamien uint8_t *frm, *efrm; 984145247Sdamien 985145247Sdamien wh = mtod(m, struct ieee80211_frame *); 986145247Sdamien 987145247Sdamien if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT) 988145247Sdamien return; 989145247Sdamien 990145247Sdamien subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; 991145247Sdamien 992145247Sdamien if (subtype != IEEE80211_FC0_SUBTYPE_BEACON && 993145247Sdamien subtype != IEEE80211_FC0_SUBTYPE_PROBE_RESP) 994145247Sdamien return; 995145247Sdamien 996145247Sdamien frm = (uint8_t *)(wh + 1); 997145247Sdamien efrm = mtod(m, uint8_t *) + m->m_len; 998145247Sdamien 999145247Sdamien frm += 12; /* skip tstamp, bintval and capinfo fields */ 1000145247Sdamien while (frm < efrm) { 1001145247Sdamien if (*frm == IEEE80211_ELEMID_DSPARMS) 1002145247Sdamien#if IEEE80211_CHAN_MAX < 255 1003145247Sdamien if (frm[2] <= IEEE80211_CHAN_MAX) 1004145247Sdamien#endif 1005145247Sdamien ic->ic_bss->ni_chan = &ic->ic_channels[frm[2]]; 1006145247Sdamien 1007145247Sdamien frm += frm[1] + 2; 1008145247Sdamien } 1009145247Sdamien} 1010145247Sdamien 1011145247Sdamienstatic void 1012145247Sdamienipw_data_intr(struct ipw_softc *sc, struct ipw_status *status, 1013145247Sdamien struct ipw_soft_bd *sbd, struct ipw_soft_buf *sbuf) 1014145247Sdamien{ 1015145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1016145247Sdamien struct ifnet *ifp = ic->ic_ifp; 1017145247Sdamien struct mbuf *m; 1018145247Sdamien struct ieee80211_frame *wh; 1019145247Sdamien struct ieee80211_node *ni; 1020145247Sdamien bus_addr_t physaddr; 1021145247Sdamien int error; 1022145247Sdamien 1023147757Sdamien if (le32toh(status->len) < sizeof (struct ieee80211_frame_min) || 1024147757Sdamien le32toh(status->len) > MCLBYTES) 1025147757Sdamien return; 1026147757Sdamien 1027145247Sdamien bus_dmamap_sync(sc->rxbuf_dmat, sbuf->map, BUS_DMASYNC_POSTREAD); 1028145247Sdamien bus_dmamap_unload(sc->rxbuf_dmat, sbuf->map); 1029145247Sdamien 1030145247Sdamien /* finalize mbuf */ 1031145247Sdamien m = sbuf->m; 1032145247Sdamien m->m_pkthdr.rcvif = ifp; 1033145247Sdamien m->m_pkthdr.len = m->m_len = le32toh(status->len); 1034145247Sdamien 1035145247Sdamien if (sc->sc_drvbpf != NULL) { 1036145247Sdamien struct ipw_rx_radiotap_header *tap = &sc->sc_rxtap; 1037145247Sdamien 1038145247Sdamien tap->wr_flags = 0; 1039145247Sdamien tap->wr_antsignal = status->rssi; 1040145247Sdamien tap->wr_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1041145247Sdamien tap->wr_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1042145247Sdamien 1043145247Sdamien bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1044145247Sdamien } 1045145247Sdamien 1046145247Sdamien if (ic->ic_state == IEEE80211_S_SCAN) 1047145247Sdamien ipw_fix_channel(ic, m); 1048145247Sdamien 1049145247Sdamien wh = mtod(m, struct ieee80211_frame *); 1050145247Sdamien ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1051145247Sdamien 1052145247Sdamien /* send the frame to the 802.11 layer */ 1053145247Sdamien ieee80211_input(ic, m, ni, status->rssi, 0); 1054145247Sdamien 1055145247Sdamien /* node is no longer needed */ 1056145247Sdamien ieee80211_free_node(ni); 1057145247Sdamien 1058145247Sdamien m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 1059145247Sdamien if (m == NULL) { 1060145247Sdamien device_printf(sc->sc_dev, "could not allocate rx mbuf\n"); 1061145247Sdamien sbuf->m = NULL; 1062145247Sdamien return; 1063145247Sdamien } 1064145247Sdamien 1065145247Sdamien error = bus_dmamap_load(sc->rxbuf_dmat, sbuf->map, mtod(m, void *), 1066145247Sdamien MCLBYTES, ipw_dma_map_addr, &physaddr, 0); 1067145247Sdamien if (error != 0) { 1068145247Sdamien device_printf(sc->sc_dev, "could not map rx DMA memory\n"); 1069145247Sdamien m_freem(m); 1070145247Sdamien sbuf->m = NULL; 1071145247Sdamien return; 1072145247Sdamien } 1073145247Sdamien 1074145247Sdamien sbuf->m = m; 1075145247Sdamien sbd->bd->physaddr = htole32(physaddr); 1076145247Sdamien 1077145247Sdamien DPRINTFN(5, ("received frame len=%u, rssi=%u\n", le32toh(status->len), 1078145247Sdamien status->rssi)); 1079145247Sdamien 1080145247Sdamien bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 1081145247Sdamien} 1082145247Sdamien 1083145247Sdamienstatic void 1084145247Sdamienipw_rx_intr(struct ipw_softc *sc) 1085145247Sdamien{ 1086145247Sdamien struct ipw_status *status; 1087145247Sdamien struct ipw_soft_bd *sbd; 1088145247Sdamien struct ipw_soft_buf *sbuf; 1089145247Sdamien uint32_t r, i; 1090145247Sdamien 1091145247Sdamien if (!(sc->flags & IPW_FLAG_FW_INITED)) 1092145247Sdamien return; 1093145247Sdamien 1094145247Sdamien r = CSR_READ_4(sc, IPW_CSR_RX_READ); 1095145247Sdamien 1096145247Sdamien bus_dmamap_sync(sc->status_dmat, sc->status_map, BUS_DMASYNC_POSTREAD); 1097145247Sdamien 1098145247Sdamien for (i = (sc->rxcur + 1) % IPW_NRBD; i != r; i = (i + 1) % IPW_NRBD) { 1099145247Sdamien status = &sc->status_list[i]; 1100145247Sdamien sbd = &sc->srbd_list[i]; 1101145247Sdamien sbuf = sbd->priv; 1102145247Sdamien 1103145247Sdamien switch (le16toh(status->code) & 0xf) { 1104145247Sdamien case IPW_STATUS_CODE_COMMAND: 1105145247Sdamien ipw_command_intr(sc, sbuf); 1106145247Sdamien break; 1107145247Sdamien 1108145247Sdamien case IPW_STATUS_CODE_NEWSTATE: 1109145247Sdamien ipw_newstate_intr(sc, sbuf); 1110145247Sdamien break; 1111145247Sdamien 1112145247Sdamien case IPW_STATUS_CODE_DATA_802_3: 1113145247Sdamien case IPW_STATUS_CODE_DATA_802_11: 1114145247Sdamien ipw_data_intr(sc, status, sbd, sbuf); 1115145247Sdamien break; 1116145247Sdamien 1117145247Sdamien case IPW_STATUS_CODE_NOTIFICATION: 1118145247Sdamien DPRINTFN(2, ("received notification\n")); 1119145247Sdamien break; 1120145247Sdamien 1121145247Sdamien default: 1122145247Sdamien device_printf(sc->sc_dev, "unknown status code %u\n", 1123145247Sdamien le16toh(status->code)); 1124145247Sdamien } 1125145247Sdamien 1126145247Sdamien /* firmware was killed, stop processing received frames */ 1127145247Sdamien if (!(sc->flags & IPW_FLAG_FW_INITED)) 1128145247Sdamien return; 1129145247Sdamien 1130145247Sdamien sbd->bd->flags = 0; 1131145247Sdamien } 1132145247Sdamien 1133145247Sdamien bus_dmamap_sync(sc->rbd_dmat, sc->rbd_map, BUS_DMASYNC_PREWRITE); 1134145247Sdamien 1135145247Sdamien /* kick the firmware */ 1136145247Sdamien sc->rxcur = (r == 0) ? IPW_NRBD - 1 : r - 1; 1137145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur); 1138145247Sdamien} 1139145247Sdamien 1140145247Sdamienstatic void 1141145247Sdamienipw_release_sbd(struct ipw_softc *sc, struct ipw_soft_bd *sbd) 1142145247Sdamien{ 1143145247Sdamien struct ipw_soft_hdr *shdr; 1144145247Sdamien struct ipw_soft_buf *sbuf; 1145145247Sdamien 1146145247Sdamien switch (sbd->type) { 1147145247Sdamien case IPW_SBD_TYPE_COMMAND: 1148145247Sdamien bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, 1149145247Sdamien BUS_DMASYNC_POSTWRITE); 1150145247Sdamien bus_dmamap_unload(sc->cmd_dmat, sc->cmd_map); 1151145247Sdamien break; 1152145247Sdamien 1153145247Sdamien case IPW_SBD_TYPE_HEADER: 1154145247Sdamien shdr = sbd->priv; 1155145247Sdamien bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_POSTWRITE); 1156145247Sdamien bus_dmamap_unload(sc->hdr_dmat, shdr->map); 1157145247Sdamien SLIST_INSERT_HEAD(&sc->free_shdr, shdr, next); 1158145247Sdamien break; 1159145247Sdamien 1160145247Sdamien case IPW_SBD_TYPE_DATA: 1161145247Sdamien sbuf = sbd->priv; 1162145247Sdamien bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, 1163145247Sdamien BUS_DMASYNC_POSTWRITE); 1164145247Sdamien bus_dmamap_unload(sc->txbuf_dmat, sbuf->map); 1165145247Sdamien SLIST_INSERT_HEAD(&sc->free_sbuf, sbuf, next); 1166145247Sdamien 1167145247Sdamien m_freem(sbuf->m); 1168145247Sdamien ieee80211_free_node(sbuf->ni); 1169145247Sdamien 1170145247Sdamien sc->sc_tx_timer = 0; 1171145247Sdamien break; 1172145247Sdamien } 1173145247Sdamien 1174145247Sdamien sbd->type = IPW_SBD_TYPE_NOASSOC; 1175145247Sdamien} 1176145247Sdamien 1177145247Sdamienstatic void 1178145247Sdamienipw_tx_intr(struct ipw_softc *sc) 1179145247Sdamien{ 1180145247Sdamien struct ifnet *ifp = sc->sc_ic.ic_ifp; 1181145247Sdamien struct ipw_soft_bd *sbd; 1182145247Sdamien uint32_t r, i; 1183145247Sdamien 1184145247Sdamien if (!(sc->flags & IPW_FLAG_FW_INITED)) 1185145247Sdamien return; 1186145247Sdamien 1187145247Sdamien r = CSR_READ_4(sc, IPW_CSR_TX_READ); 1188145247Sdamien 1189145247Sdamien for (i = (sc->txold + 1) % IPW_NTBD; i != r; i = (i + 1) % IPW_NTBD) { 1190145247Sdamien sbd = &sc->stbd_list[i]; 1191145247Sdamien 1192145247Sdamien if (sbd->type == IPW_SBD_TYPE_DATA) 1193145247Sdamien ifp->if_opackets++; 1194145247Sdamien 1195145247Sdamien ipw_release_sbd(sc, sbd); 1196145247Sdamien sc->txfree++; 1197145247Sdamien } 1198145247Sdamien 1199145247Sdamien /* remember what the firmware has processed */ 1200145247Sdamien sc->txold = (r == 0) ? IPW_NTBD - 1 : r - 1; 1201145247Sdamien 1202145247Sdamien ifp->if_flags &= ~IFF_OACTIVE; 1203145247Sdamien ipw_start(ifp); 1204145247Sdamien} 1205145247Sdamien 1206145247Sdamienstatic void 1207145247Sdamienipw_intr(void *arg) 1208145247Sdamien{ 1209145247Sdamien struct ipw_softc *sc = arg; 1210145247Sdamien uint32_t r; 1211145247Sdamien 1212145247Sdamien IPW_LOCK(sc); 1213145247Sdamien 1214145247Sdamien if ((r = CSR_READ_4(sc, IPW_CSR_INTR)) == 0 || r == 0xffffffff) { 1215145247Sdamien IPW_UNLOCK(sc); 1216145247Sdamien return; 1217145247Sdamien } 1218145247Sdamien 1219145247Sdamien /* disable interrupts */ 1220145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1221145247Sdamien 1222145247Sdamien if (r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR)) { 1223145247Sdamien device_printf(sc->sc_dev, "fatal error\n"); 1224145247Sdamien sc->sc_ic.ic_ifp->if_flags &= ~IFF_UP; 1225145247Sdamien ipw_stop(sc); 1226145247Sdamien } 1227145247Sdamien 1228145247Sdamien if (r & IPW_INTR_FW_INIT_DONE) { 1229145247Sdamien if (!(r & (IPW_INTR_FATAL_ERROR | IPW_INTR_PARITY_ERROR))) 1230145247Sdamien wakeup(sc); 1231145247Sdamien } 1232145247Sdamien 1233145247Sdamien if (r & IPW_INTR_RX_TRANSFER) 1234145247Sdamien ipw_rx_intr(sc); 1235145247Sdamien 1236145247Sdamien if (r & IPW_INTR_TX_TRANSFER) 1237145247Sdamien ipw_tx_intr(sc); 1238145247Sdamien 1239145247Sdamien /* acknowledge all interrupts */ 1240145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INTR, r); 1241145247Sdamien 1242145247Sdamien /* re-enable interrupts */ 1243145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 1244145247Sdamien 1245145247Sdamien IPW_UNLOCK(sc); 1246145247Sdamien} 1247145247Sdamien 1248145247Sdamienstatic void 1249145247Sdamienipw_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1250145247Sdamien{ 1251145247Sdamien if (error != 0) 1252145247Sdamien return; 1253145247Sdamien 1254145247Sdamien KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 1255145247Sdamien 1256145247Sdamien *(bus_addr_t *)arg = segs[0].ds_addr; 1257145247Sdamien} 1258145247Sdamien 1259145247Sdamien/* 1260145247Sdamien * Send a command to the firmware and wait for the acknowledgement. 1261145247Sdamien */ 1262145247Sdamienstatic int 1263145247Sdamienipw_cmd(struct ipw_softc *sc, uint32_t type, void *data, uint32_t len) 1264145247Sdamien{ 1265145247Sdamien struct ipw_soft_bd *sbd; 1266145247Sdamien bus_addr_t physaddr; 1267145247Sdamien int error; 1268145247Sdamien 1269145247Sdamien sbd = &sc->stbd_list[sc->txcur]; 1270145247Sdamien 1271145247Sdamien error = bus_dmamap_load(sc->cmd_dmat, sc->cmd_map, &sc->cmd, 1272145247Sdamien sizeof (struct ipw_cmd), ipw_dma_map_addr, &physaddr, 0); 1273145247Sdamien if (error != 0) { 1274145247Sdamien device_printf(sc->sc_dev, "could not map command DMA memory\n"); 1275145247Sdamien return error; 1276145247Sdamien } 1277145247Sdamien 1278145247Sdamien sc->cmd.type = htole32(type); 1279145247Sdamien sc->cmd.subtype = 0; 1280145247Sdamien sc->cmd.len = htole32(len); 1281145247Sdamien sc->cmd.seq = 0; 1282145247Sdamien bcopy(data, sc->cmd.data, len); 1283145247Sdamien 1284145247Sdamien sbd->type = IPW_SBD_TYPE_COMMAND; 1285145247Sdamien sbd->bd->physaddr = htole32(physaddr); 1286145247Sdamien sbd->bd->len = htole32(sizeof (struct ipw_cmd)); 1287145247Sdamien sbd->bd->nfrag = 1; 1288145247Sdamien sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_COMMAND | 1289145247Sdamien IPW_BD_FLAG_TX_LAST_FRAGMENT; 1290145247Sdamien 1291145247Sdamien bus_dmamap_sync(sc->cmd_dmat, sc->cmd_map, BUS_DMASYNC_PREWRITE); 1292145247Sdamien bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE); 1293145247Sdamien 1294145247Sdamien DPRINTFN(2, ("sending command (%u, %u, %u, %u)\n", type, 0, 0, len)); 1295145247Sdamien 1296145247Sdamien /* kick firmware */ 1297145247Sdamien sc->txfree--; 1298145247Sdamien sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1299145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 1300145247Sdamien 1301145247Sdamien /* wait at most one second for command to complete */ 1302145247Sdamien return msleep(sc, &sc->sc_mtx, 0, "ipwcmd", hz); 1303145247Sdamien} 1304145247Sdamien 1305145247Sdamienstatic int 1306145247Sdamienipw_tx_start(struct ifnet *ifp, struct mbuf *m0, struct ieee80211_node *ni) 1307145247Sdamien{ 1308145247Sdamien struct ipw_softc *sc = ifp->if_softc; 1309145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1310145247Sdamien struct ieee80211_frame *wh; 1311145247Sdamien struct ipw_soft_bd *sbd; 1312145247Sdamien struct ipw_soft_hdr *shdr; 1313145247Sdamien struct ipw_soft_buf *sbuf; 1314145247Sdamien struct ieee80211_key *k; 1315145247Sdamien struct mbuf *mnew; 1316145247Sdamien bus_dma_segment_t segs[IPW_MAX_NSEG]; 1317145247Sdamien bus_addr_t physaddr; 1318145247Sdamien int nsegs, error, i; 1319145247Sdamien 1320145247Sdamien wh = mtod(m0, struct ieee80211_frame *); 1321145247Sdamien 1322145247Sdamien if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1323145247Sdamien k = ieee80211_crypto_encap(ic, ni, m0); 1324147806Ssam if (k == NULL) { 1325147806Ssam m_freem(m0); 1326145247Sdamien return ENOBUFS; 1327147806Ssam } 1328145247Sdamien 1329145247Sdamien /* packet header may have moved, reset our local pointer */ 1330145247Sdamien wh = mtod(m0, struct ieee80211_frame *); 1331145247Sdamien } 1332145247Sdamien 1333145247Sdamien if (sc->sc_drvbpf != NULL) { 1334145247Sdamien struct ipw_tx_radiotap_header *tap = &sc->sc_txtap; 1335145247Sdamien 1336145247Sdamien tap->wt_flags = 0; 1337145247Sdamien tap->wt_chan_freq = htole16(ic->ic_ibss_chan->ic_freq); 1338145247Sdamien tap->wt_chan_flags = htole16(ic->ic_ibss_chan->ic_flags); 1339145247Sdamien 1340145247Sdamien bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m0); 1341145247Sdamien } 1342145247Sdamien 1343145247Sdamien shdr = SLIST_FIRST(&sc->free_shdr); 1344145247Sdamien sbuf = SLIST_FIRST(&sc->free_sbuf); 1345145247Sdamien KASSERT(shdr != NULL && sbuf != NULL, ("empty sw hdr/buf pool")); 1346145247Sdamien 1347145247Sdamien shdr->hdr.type = htole32(IPW_HDR_TYPE_SEND); 1348145247Sdamien shdr->hdr.subtype = 0; 1349145247Sdamien shdr->hdr.encrypted = (wh->i_fc[1] & IEEE80211_FC1_WEP) ? 1 : 0; 1350145247Sdamien shdr->hdr.encrypt = 0; 1351145247Sdamien shdr->hdr.keyidx = 0; 1352145247Sdamien shdr->hdr.keysz = 0; 1353145247Sdamien shdr->hdr.fragmentsz = 0; 1354145247Sdamien IEEE80211_ADDR_COPY(shdr->hdr.src_addr, wh->i_addr2); 1355145247Sdamien if (ic->ic_opmode == IEEE80211_M_STA) 1356145247Sdamien IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr3); 1357145247Sdamien else 1358145247Sdamien IEEE80211_ADDR_COPY(shdr->hdr.dst_addr, wh->i_addr1); 1359145247Sdamien 1360145247Sdamien /* trim IEEE802.11 header */ 1361145247Sdamien m_adj(m0, sizeof (struct ieee80211_frame)); 1362145247Sdamien 1363145247Sdamien error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, segs, 1364145247Sdamien &nsegs, 0); 1365145247Sdamien if (error != 0 && error != EFBIG) { 1366145247Sdamien device_printf(sc->sc_dev, "could not map mbuf (error %d)\n", 1367145247Sdamien error); 1368145247Sdamien m_freem(m0); 1369145247Sdamien return error; 1370145247Sdamien } 1371145247Sdamien if (error != 0) { 1372145247Sdamien mnew = m_defrag(m0, M_DONTWAIT); 1373145247Sdamien if (mnew == NULL) { 1374145247Sdamien device_printf(sc->sc_dev, 1375145247Sdamien "could not defragment mbuf\n"); 1376145247Sdamien m_freem(m0); 1377145247Sdamien return ENOBUFS; 1378145247Sdamien } 1379145247Sdamien m0 = mnew; 1380145247Sdamien 1381145247Sdamien error = bus_dmamap_load_mbuf_sg(sc->txbuf_dmat, sbuf->map, m0, 1382145247Sdamien segs, &nsegs, 0); 1383145247Sdamien if (error != 0) { 1384145247Sdamien device_printf(sc->sc_dev, 1385145247Sdamien "could not map mbuf (error %d)\n", error); 1386145247Sdamien m_freem(m0); 1387145247Sdamien return error; 1388145247Sdamien } 1389145247Sdamien } 1390145247Sdamien 1391145247Sdamien error = bus_dmamap_load(sc->hdr_dmat, shdr->map, &shdr->hdr, 1392145247Sdamien sizeof (struct ipw_hdr), ipw_dma_map_addr, &physaddr, 0); 1393145247Sdamien if (error != 0) { 1394145247Sdamien device_printf(sc->sc_dev, "could not map header DMA memory\n"); 1395145247Sdamien bus_dmamap_unload(sc->txbuf_dmat, sbuf->map); 1396145247Sdamien m_freem(m0); 1397145247Sdamien return error; 1398145247Sdamien } 1399145247Sdamien 1400145247Sdamien SLIST_REMOVE_HEAD(&sc->free_sbuf, next); 1401145247Sdamien SLIST_REMOVE_HEAD(&sc->free_shdr, next); 1402145247Sdamien 1403145247Sdamien sbd = &sc->stbd_list[sc->txcur]; 1404145247Sdamien sbd->type = IPW_SBD_TYPE_HEADER; 1405145247Sdamien sbd->priv = shdr; 1406145247Sdamien sbd->bd->physaddr = htole32(physaddr); 1407145247Sdamien sbd->bd->len = htole32(sizeof (struct ipw_hdr)); 1408145247Sdamien sbd->bd->nfrag = 1 + nsegs; 1409145247Sdamien sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3 | 1410145247Sdamien IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1411145247Sdamien 1412145247Sdamien DPRINTFN(5, ("sending tx hdr (%u, %u, %u, %u, %6D, %6D)\n", 1413145247Sdamien shdr->hdr.type, shdr->hdr.subtype, shdr->hdr.encrypted, 1414145247Sdamien shdr->hdr.encrypt, shdr->hdr.src_addr, ":", shdr->hdr.dst_addr, 1415145247Sdamien ":")); 1416145247Sdamien 1417145247Sdamien sc->txfree--; 1418145247Sdamien sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1419145247Sdamien 1420145247Sdamien sbuf->m = m0; 1421145247Sdamien sbuf->ni = ni; 1422145247Sdamien 1423145247Sdamien for (i = 0; i < nsegs; i++) { 1424145247Sdamien sbd = &sc->stbd_list[sc->txcur]; 1425145247Sdamien 1426145247Sdamien sbd->bd->physaddr = htole32(segs[i].ds_addr); 1427145247Sdamien sbd->bd->len = htole32(segs[i].ds_len); 1428145247Sdamien sbd->bd->nfrag = 0; 1429145247Sdamien sbd->bd->flags = IPW_BD_FLAG_TX_FRAME_802_3; 1430145247Sdamien if (i == nsegs - 1) { 1431145247Sdamien sbd->type = IPW_SBD_TYPE_DATA; 1432145247Sdamien sbd->priv = sbuf; 1433145247Sdamien sbd->bd->flags |= IPW_BD_FLAG_TX_LAST_FRAGMENT; 1434145247Sdamien } else { 1435145247Sdamien sbd->type = IPW_SBD_TYPE_NOASSOC; 1436145247Sdamien sbd->bd->flags |= IPW_BD_FLAG_TX_NOT_LAST_FRAGMENT; 1437145247Sdamien } 1438145247Sdamien 1439145247Sdamien DPRINTFN(5, ("sending fragment (%d, %d)\n", i, segs[i].ds_len)); 1440145247Sdamien 1441145247Sdamien sc->txfree--; 1442145247Sdamien sc->txcur = (sc->txcur + 1) % IPW_NTBD; 1443145247Sdamien } 1444145247Sdamien 1445145247Sdamien bus_dmamap_sync(sc->hdr_dmat, shdr->map, BUS_DMASYNC_PREWRITE); 1446145247Sdamien bus_dmamap_sync(sc->txbuf_dmat, sbuf->map, BUS_DMASYNC_PREWRITE); 1447145247Sdamien bus_dmamap_sync(sc->tbd_dmat, sc->tbd_map, BUS_DMASYNC_PREWRITE); 1448145247Sdamien 1449145247Sdamien /* kick firmware */ 1450145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 1451145247Sdamien 1452145247Sdamien return 0; 1453145247Sdamien} 1454145247Sdamien 1455145247Sdamienstatic void 1456145247Sdamienipw_start(struct ifnet *ifp) 1457145247Sdamien{ 1458145247Sdamien struct ipw_softc *sc = ifp->if_softc; 1459145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1460145247Sdamien struct mbuf *m0; 1461145247Sdamien struct ether_header *eh; 1462145247Sdamien struct ieee80211_node *ni; 1463145247Sdamien 1464145247Sdamien IPW_LOCK(sc); 1465145247Sdamien 1466145247Sdamien if (ic->ic_state != IEEE80211_S_RUN) { 1467145247Sdamien IPW_UNLOCK(sc); 1468145247Sdamien return; 1469145247Sdamien } 1470145247Sdamien 1471145247Sdamien for (;;) { 1472145247Sdamien IFQ_DRV_DEQUEUE(&ifp->if_snd, m0); 1473145247Sdamien if (m0 == NULL) 1474145247Sdamien break; 1475145247Sdamien 1476145247Sdamien if (sc->txfree < 1 + IPW_MAX_NSEG) { 1477145247Sdamien IFQ_DRV_PREPEND(&ifp->if_snd, m0); 1478145247Sdamien ifp->if_flags |= IFF_OACTIVE; 1479145247Sdamien break; 1480145247Sdamien } 1481145247Sdamien 1482145247Sdamien if (m0->m_len < sizeof (struct ether_header) && 1483145247Sdamien (m0 = m_pullup(m0, sizeof (struct ether_header))) == NULL) 1484145247Sdamien continue; 1485145247Sdamien 1486145247Sdamien eh = mtod(m0, struct ether_header *); 1487145247Sdamien ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1488145247Sdamien if (ni == NULL) { 1489145247Sdamien m_freem(m0); 1490145247Sdamien continue; 1491145247Sdamien } 1492145247Sdamien BPF_MTAP(ifp, m0); 1493145247Sdamien 1494145247Sdamien m0 = ieee80211_encap(ic, m0, ni); 1495145247Sdamien if (m0 == NULL) { 1496145247Sdamien ieee80211_free_node(ni); 1497145247Sdamien continue; 1498145247Sdamien } 1499145247Sdamien 1500145247Sdamien if (ic->ic_rawbpf != NULL) 1501145247Sdamien bpf_mtap(ic->ic_rawbpf, m0); 1502145247Sdamien 1503145247Sdamien if (ipw_tx_start(ifp, m0, ni) != 0) { 1504145247Sdamien ieee80211_free_node(ni); 1505145247Sdamien ifp->if_oerrors++; 1506145247Sdamien break; 1507145247Sdamien } 1508145247Sdamien 1509145247Sdamien /* start watchdog timer */ 1510145247Sdamien sc->sc_tx_timer = 5; 1511145247Sdamien ifp->if_timer = 1; 1512145247Sdamien } 1513145247Sdamien 1514145247Sdamien IPW_UNLOCK(sc); 1515145247Sdamien} 1516145247Sdamien 1517145247Sdamienstatic void 1518145247Sdamienipw_watchdog(struct ifnet *ifp) 1519145247Sdamien{ 1520145247Sdamien struct ipw_softc *sc = ifp->if_softc; 1521145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1522145247Sdamien 1523145247Sdamien ifp->if_timer = 0; 1524145247Sdamien 1525145247Sdamien if (sc->sc_tx_timer > 0) { 1526145247Sdamien if (--sc->sc_tx_timer == 0) { 1527145247Sdamien if_printf(ifp, "device timeout\n"); 1528145247Sdamien ifp->if_oerrors++; 1529145247Sdamien ifp->if_flags &= ~IFF_UP; 1530145247Sdamien ipw_stop(sc); 1531145247Sdamien return; 1532145247Sdamien } 1533145247Sdamien ifp->if_timer = 1; 1534145247Sdamien } 1535145247Sdamien 1536145247Sdamien ieee80211_watchdog(ic); 1537145247Sdamien} 1538145247Sdamien 1539145247Sdamienstatic int 1540145247Sdamienipw_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1541145247Sdamien{ 1542145247Sdamien struct ipw_softc *sc = ifp->if_softc; 1543145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1544145247Sdamien struct ifreq *ifr; 1545145247Sdamien int error = 0; 1546145247Sdamien 1547145247Sdamien IPW_LOCK(sc); 1548145247Sdamien 1549145247Sdamien switch (cmd) { 1550145247Sdamien case SIOCSIFFLAGS: 1551145247Sdamien if (ifp->if_flags & IFF_UP) { 1552145247Sdamien if (!(ifp->if_flags & IFF_RUNNING)) 1553145247Sdamien ipw_init(sc); 1554145247Sdamien } else { 1555145247Sdamien if (ifp->if_flags & IFF_RUNNING) 1556145247Sdamien ipw_stop(sc); 1557145247Sdamien } 1558145247Sdamien break; 1559145247Sdamien 1560145247Sdamien case SIOCSLOADFW: 1561145247Sdamien /* only super-user can do that! */ 1562145247Sdamien if ((error = suser(curthread)) != 0) 1563145247Sdamien break; 1564145247Sdamien 1565145247Sdamien ifr = (struct ifreq *)data; 1566145247Sdamien error = ipw_cache_firmware(sc, ifr->ifr_data); 1567145247Sdamien break; 1568145247Sdamien 1569145247Sdamien case SIOCSKILLFW: 1570145247Sdamien /* only super-user can do that! */ 1571145247Sdamien if ((error = suser(curthread)) != 0) 1572145247Sdamien break; 1573145247Sdamien 1574145247Sdamien ifp->if_flags &= ~IFF_UP; 1575145247Sdamien ipw_stop(sc); 1576145247Sdamien ipw_free_firmware(sc); 1577145247Sdamien break; 1578145247Sdamien 1579145247Sdamien default: 1580145247Sdamien error = ieee80211_ioctl(ic, cmd, data); 1581145247Sdamien } 1582145247Sdamien 1583145247Sdamien if (error == ENETRESET) { 1584145247Sdamien if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1585145247Sdamien (IFF_UP | IFF_RUNNING)) 1586145247Sdamien ipw_init(sc); 1587145247Sdamien error = 0; 1588145247Sdamien } 1589145247Sdamien 1590145247Sdamien IPW_UNLOCK(sc); 1591145247Sdamien 1592145247Sdamien return error; 1593145247Sdamien} 1594145247Sdamien 1595145247Sdamienstatic void 1596145247Sdamienipw_stop_master(struct ipw_softc *sc) 1597145247Sdamien{ 1598145247Sdamien int ntries; 1599145247Sdamien 1600145247Sdamien /* disable interrupts */ 1601145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, 0); 1602145247Sdamien 1603145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_STOP_MASTER); 1604145247Sdamien for (ntries = 0; ntries < 50; ntries++) { 1605145247Sdamien if (CSR_READ_4(sc, IPW_CSR_RST) & IPW_RST_MASTER_DISABLED) 1606145247Sdamien break; 1607145247Sdamien DELAY(10); 1608145247Sdamien } 1609145247Sdamien if (ntries == 50) 1610145247Sdamien device_printf(sc->sc_dev, "timeout waiting for master\n"); 1611145247Sdamien 1612145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, CSR_READ_4(sc, IPW_CSR_RST) | 1613145247Sdamien IPW_RST_PRINCETON_RESET); 1614145247Sdamien 1615145247Sdamien sc->flags &= ~IPW_FLAG_FW_INITED; 1616145247Sdamien} 1617145247Sdamien 1618145247Sdamienstatic int 1619145247Sdamienipw_reset(struct ipw_softc *sc) 1620145247Sdamien{ 1621145247Sdamien int ntries; 1622145247Sdamien 1623145247Sdamien ipw_stop_master(sc); 1624145247Sdamien 1625145247Sdamien /* move adapter to D0 state */ 1626145247Sdamien CSR_WRITE_4(sc, IPW_CSR_CTL, CSR_READ_4(sc, IPW_CSR_CTL) | 1627145247Sdamien IPW_CTL_INIT); 1628145247Sdamien 1629145247Sdamien /* wait for clock stabilization */ 1630145247Sdamien for (ntries = 0; ntries < 1000; ntries++) { 1631145247Sdamien if (CSR_READ_4(sc, IPW_CSR_CTL) & IPW_CTL_CLOCK_READY) 1632145247Sdamien break; 1633145247Sdamien DELAY(200); 1634145247Sdamien } 1635145247Sdamien if (ntries == 1000) 1636145247Sdamien return EIO; 1637145247Sdamien 1638145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, CSR_READ_4(sc, IPW_CSR_RST) | 1639145247Sdamien IPW_RST_SW_RESET); 1640145247Sdamien 1641145247Sdamien DELAY(10); 1642145247Sdamien 1643145247Sdamien CSR_WRITE_4(sc, IPW_CSR_CTL, CSR_READ_4(sc, IPW_CSR_CTL) | 1644145247Sdamien IPW_CTL_INIT); 1645145247Sdamien 1646145247Sdamien return 0; 1647145247Sdamien} 1648145247Sdamien 1649145247Sdamien/* 1650145247Sdamien * Upload the microcode to the device. 1651145247Sdamien */ 1652145247Sdamienstatic int 1653145247Sdamienipw_load_ucode(struct ipw_softc *sc, u_char *uc, int size) 1654145247Sdamien{ 1655145247Sdamien int ntries; 1656145247Sdamien 1657145247Sdamien MEM_WRITE_4(sc, 0x3000e0, 0x80000000); 1658145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, 0); 1659145247Sdamien 1660145247Sdamien MEM_WRITE_2(sc, 0x220000, 0x0703); 1661145247Sdamien MEM_WRITE_2(sc, 0x220000, 0x0707); 1662145247Sdamien 1663145247Sdamien MEM_WRITE_1(sc, 0x210014, 0x72); 1664145247Sdamien MEM_WRITE_1(sc, 0x210014, 0x72); 1665145247Sdamien 1666145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x40); 1667145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x00); 1668145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x40); 1669145247Sdamien 1670145247Sdamien MEM_WRITE_MULTI_1(sc, 0x210010, uc, size); 1671145247Sdamien 1672145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x00); 1673145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x00); 1674145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x80); 1675145247Sdamien 1676145247Sdamien MEM_WRITE_2(sc, 0x220000, 0x0703); 1677145247Sdamien MEM_WRITE_2(sc, 0x220000, 0x0707); 1678145247Sdamien 1679145247Sdamien MEM_WRITE_1(sc, 0x210014, 0x72); 1680145247Sdamien MEM_WRITE_1(sc, 0x210014, 0x72); 1681145247Sdamien 1682145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x00); 1683145247Sdamien MEM_WRITE_1(sc, 0x210000, 0x80); 1684145247Sdamien 1685145247Sdamien for (ntries = 0; ntries < 10; ntries++) { 1686145247Sdamien if (MEM_READ_1(sc, 0x210000) & 1) 1687145247Sdamien break; 1688145247Sdamien DELAY(10); 1689145247Sdamien } 1690145247Sdamien if (ntries == 10) { 1691145247Sdamien device_printf(sc->sc_dev, 1692145247Sdamien "timeout waiting for ucode to initialize\n"); 1693145247Sdamien return EIO; 1694145247Sdamien } 1695145247Sdamien 1696145247Sdamien MEM_WRITE_4(sc, 0x3000e0, 0); 1697145247Sdamien 1698145247Sdamien return 0; 1699145247Sdamien} 1700145247Sdamien 1701145247Sdamien/* set of macros to handle unaligned little endian data in firmware image */ 1702145247Sdamien#define GETLE32(p) ((p)[0] | (p)[1] << 8 | (p)[2] << 16 | (p)[3] << 24) 1703145247Sdamien#define GETLE16(p) ((p)[0] | (p)[1] << 8) 1704145247Sdamienstatic int 1705145247Sdamienipw_load_firmware(struct ipw_softc *sc, u_char *fw, int size) 1706145247Sdamien{ 1707145247Sdamien u_char *p, *end; 1708145247Sdamien uint32_t dst; 1709145247Sdamien uint16_t len; 1710145247Sdamien int error; 1711145247Sdamien 1712145247Sdamien p = fw; 1713145247Sdamien end = fw + size; 1714145247Sdamien while (p < end) { 1715145247Sdamien dst = GETLE32(p); p += 4; 1716145247Sdamien len = GETLE16(p); p += 2; 1717145247Sdamien 1718145247Sdamien ipw_write_mem_1(sc, dst, p, len); 1719145247Sdamien p += len; 1720145247Sdamien } 1721145247Sdamien 1722145247Sdamien CSR_WRITE_4(sc, IPW_CSR_IO, IPW_IO_GPIO1_ENABLE | IPW_IO_GPIO3_MASK | 1723145247Sdamien IPW_IO_LED_OFF); 1724145247Sdamien 1725145247Sdamien /* enable interrupts */ 1726145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INTR_MASK, IPW_INTR_MASK); 1727145247Sdamien 1728145247Sdamien /* kick the firmware */ 1729145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, 0); 1730145247Sdamien 1731145247Sdamien CSR_WRITE_4(sc, IPW_CSR_CTL, CSR_READ_4(sc, IPW_CSR_CTL) | 1732145247Sdamien IPW_CTL_ALLOW_STANDBY); 1733145247Sdamien 1734145247Sdamien /* wait at most one second for firmware initialization to complete */ 1735145247Sdamien if ((error = msleep(sc, &sc->sc_mtx, 0, "ipwinit", hz)) != 0) { 1736145247Sdamien device_printf(sc->sc_dev, "timeout waiting for firmware " 1737145247Sdamien "initialization to complete\n"); 1738145247Sdamien return error; 1739145247Sdamien } 1740145247Sdamien 1741145247Sdamien CSR_WRITE_4(sc, IPW_CSR_IO, CSR_READ_4(sc, IPW_CSR_IO) | 1742145247Sdamien IPW_IO_GPIO1_MASK | IPW_IO_GPIO3_MASK); 1743145247Sdamien 1744145247Sdamien return 0; 1745145247Sdamien} 1746145247Sdamien 1747145247Sdamien/* 1748145247Sdamien * Store firmware into kernel memory so we can download it when we need to, 1749145247Sdamien * e.g when the adapter wakes up from suspend mode. 1750145247Sdamien */ 1751145247Sdamienstatic int 1752145247Sdamienipw_cache_firmware(struct ipw_softc *sc, void *data) 1753145247Sdamien{ 1754145247Sdamien struct ipw_firmware *fw = &sc->fw; 1755145247Sdamien struct ipw_firmware_hdr hdr; 1756145247Sdamien u_char *p = data; 1757145247Sdamien int error; 1758145247Sdamien 1759145247Sdamien ipw_free_firmware(sc); 1760145247Sdamien 1761145247Sdamien IPW_UNLOCK(sc); 1762145247Sdamien 1763145247Sdamien if ((error = copyin(data, &hdr, sizeof hdr)) != 0) 1764145247Sdamien goto fail1; 1765145247Sdamien 1766145247Sdamien fw->main_size = le32toh(hdr.main_size); 1767145247Sdamien fw->ucode_size = le32toh(hdr.ucode_size); 1768145247Sdamien p += sizeof hdr; 1769145247Sdamien 1770145247Sdamien fw->main = malloc(fw->main_size, M_DEVBUF, M_NOWAIT); 1771145247Sdamien if (fw->main == NULL) { 1772145247Sdamien error = ENOMEM; 1773145247Sdamien goto fail1; 1774145247Sdamien } 1775145247Sdamien 1776145247Sdamien fw->ucode = malloc(fw->ucode_size, M_DEVBUF, M_NOWAIT); 1777145247Sdamien if (fw->ucode == NULL) { 1778145247Sdamien error = ENOMEM; 1779145247Sdamien goto fail2; 1780145247Sdamien } 1781145247Sdamien 1782145247Sdamien if ((error = copyin(p, fw->main, fw->main_size)) != 0) 1783145247Sdamien goto fail3; 1784145247Sdamien 1785145247Sdamien p += fw->main_size; 1786145247Sdamien if ((error = copyin(p, fw->ucode, fw->ucode_size)) != 0) 1787145247Sdamien goto fail3; 1788145247Sdamien 1789145247Sdamien DPRINTF(("Firmware cached: main %u, ucode %u\n", fw->main_size, 1790145247Sdamien fw->ucode_size)); 1791145247Sdamien 1792145247Sdamien IPW_LOCK(sc); 1793145247Sdamien 1794145247Sdamien sc->flags |= IPW_FLAG_FW_CACHED; 1795145247Sdamien 1796145247Sdamien return 0; 1797145247Sdamien 1798145247Sdamienfail3: free(fw->ucode, M_DEVBUF); 1799145247Sdamienfail2: free(fw->main, M_DEVBUF); 1800145247Sdamienfail1: IPW_LOCK(sc); 1801145247Sdamien 1802145247Sdamien return error; 1803145247Sdamien} 1804145247Sdamien 1805145247Sdamienstatic void 1806145247Sdamienipw_free_firmware(struct ipw_softc *sc) 1807145247Sdamien{ 1808145247Sdamien if (!(sc->flags & IPW_FLAG_FW_CACHED)) 1809145247Sdamien return; 1810145247Sdamien 1811145247Sdamien free(sc->fw.main, M_DEVBUF); 1812145247Sdamien free(sc->fw.ucode, M_DEVBUF); 1813145247Sdamien 1814145247Sdamien sc->flags &= ~IPW_FLAG_FW_CACHED; 1815145247Sdamien} 1816145247Sdamien 1817145247Sdamienstatic int 1818145247Sdamienipw_config(struct ipw_softc *sc) 1819145247Sdamien{ 1820145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 1821145247Sdamien struct ifnet *ifp = ic->ic_ifp; 1822145247Sdamien struct ipw_security security; 1823145247Sdamien struct ieee80211_key *k; 1824145247Sdamien struct ipw_wep_key wepkey; 1825145247Sdamien struct ipw_scan_options options; 1826145247Sdamien struct ipw_configuration config; 1827145247Sdamien uint32_t data; 1828145247Sdamien int error, i; 1829145247Sdamien 1830145247Sdamien switch (ic->ic_opmode) { 1831145247Sdamien case IEEE80211_M_STA: 1832145247Sdamien case IEEE80211_M_HOSTAP: 1833145247Sdamien data = htole32(IPW_MODE_BSS); 1834145247Sdamien break; 1835145247Sdamien 1836145247Sdamien case IEEE80211_M_IBSS: 1837145247Sdamien case IEEE80211_M_AHDEMO: 1838145247Sdamien data = htole32(IPW_MODE_IBSS); 1839145247Sdamien break; 1840145247Sdamien 1841145247Sdamien case IEEE80211_M_MONITOR: 1842145247Sdamien data = htole32(IPW_MODE_MONITOR); 1843145247Sdamien break; 1844145247Sdamien } 1845145247Sdamien DPRINTF(("Setting mode to %u\n", le32toh(data))); 1846145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_MODE, &data, sizeof data); 1847145247Sdamien if (error != 0) 1848145247Sdamien return error; 1849145247Sdamien 1850145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS || 1851145247Sdamien ic->ic_opmode == IEEE80211_M_MONITOR) { 1852145247Sdamien data = htole32(ieee80211_chan2ieee(ic, ic->ic_ibss_chan)); 1853145247Sdamien DPRINTF(("Setting channel to %u\n", le32toh(data))); 1854145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_CHANNEL, &data, sizeof data); 1855145247Sdamien if (error != 0) 1856145247Sdamien return error; 1857145247Sdamien } 1858145247Sdamien 1859145247Sdamien if (ic->ic_opmode == IEEE80211_M_MONITOR) { 1860145247Sdamien DPRINTF(("Enabling adapter\n")); 1861145247Sdamien return ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 1862145247Sdamien } 1863145247Sdamien 1864145247Sdamien IEEE80211_ADDR_COPY(ic->ic_myaddr, IF_LLADDR(ifp)); 1865145247Sdamien DPRINTF(("Setting MAC address to %6D\n", ic->ic_myaddr, ":")); 1866145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_MAC_ADDRESS, ic->ic_myaddr, 1867145247Sdamien IEEE80211_ADDR_LEN); 1868145247Sdamien if (error != 0) 1869145247Sdamien return error; 1870145247Sdamien 1871145247Sdamien config.flags = htole32(IPW_CFG_BSS_MASK | IPW_CFG_IBSS_MASK | 1872145247Sdamien IPW_CFG_PREAMBLE_AUTO | IPW_CFG_802_1x_ENABLE); 1873145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS) 1874145247Sdamien config.flags |= htole32(IPW_CFG_IBSS_AUTO_START); 1875145247Sdamien if (ifp->if_flags & IFF_PROMISC) 1876145247Sdamien config.flags |= htole32(IPW_CFG_PROMISCUOUS); 1877145247Sdamien config.bss_chan = htole32(0x3fff); /* channels 1-14 */ 1878145247Sdamien config.ibss_chan = htole32(0x7ff); /* channels 1-11 */ 1879145247Sdamien DPRINTF(("Setting configuration to 0x%x\n", le32toh(config.flags))); 1880145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_CONFIGURATION, &config, sizeof config); 1881145247Sdamien if (error != 0) 1882145247Sdamien return error; 1883145247Sdamien 1884145247Sdamien data = htole32(0x3); /* 1, 2 */ 1885145247Sdamien DPRINTF(("Setting basic tx rates to 0x%x\n", le32toh(data))); 1886145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_BASIC_TX_RATES, &data, sizeof data); 1887145247Sdamien if (error != 0) 1888145247Sdamien return error; 1889145247Sdamien 1890145247Sdamien data = htole32(0xf); /* 1, 2, 5.5, 11 */ 1891145247Sdamien DPRINTF(("Setting tx rates to 0x%x\n", le32toh(data))); 1892145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_TX_RATES, &data, sizeof data); 1893145247Sdamien if (error != 0) 1894145247Sdamien return error; 1895145247Sdamien 1896145247Sdamien data = htole32(IPW_POWER_MODE_CAM); 1897145247Sdamien DPRINTF(("Setting power mode to %u\n", le32toh(data))); 1898145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_POWER_MODE, &data, sizeof data); 1899145247Sdamien if (error != 0) 1900145247Sdamien return error; 1901145247Sdamien 1902145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS) { 1903145247Sdamien data = htole32(32); /* default value */ 1904145247Sdamien DPRINTF(("Setting tx power index to %u\n", le32toh(data))); 1905145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_TX_POWER_INDEX, &data, 1906145247Sdamien sizeof data); 1907145247Sdamien if (error != 0) 1908145247Sdamien return error; 1909145247Sdamien } 1910145247Sdamien 1911145247Sdamien data = htole32(ic->ic_rtsthreshold); 1912145247Sdamien DPRINTF(("Setting RTS threshold to %u\n", le32toh(data))); 1913145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_RTS_THRESHOLD, &data, sizeof data); 1914145247Sdamien if (error != 0) 1915145247Sdamien return error; 1916145247Sdamien 1917145247Sdamien data = htole32(ic->ic_fragthreshold); 1918145247Sdamien DPRINTF(("Setting frag threshold to %u\n", le32toh(data))); 1919145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_FRAG_THRESHOLD, &data, sizeof data); 1920145247Sdamien if (error != 0) 1921145247Sdamien return error; 1922145247Sdamien 1923145247Sdamien#ifdef IPW_DEBUG 1924145247Sdamien if (ipw_debug > 0) { 1925145247Sdamien printf("Setting ESSID to "); 1926145247Sdamien ieee80211_print_essid(ic->ic_des_essid, ic->ic_des_esslen); 1927145247Sdamien printf("\n"); 1928145247Sdamien } 1929145247Sdamien#endif 1930145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_ESSID, ic->ic_des_essid, 1931145247Sdamien ic->ic_des_esslen); 1932145247Sdamien if (error != 0) 1933145247Sdamien return error; 1934145247Sdamien 1935145247Sdamien /* no mandatory BSSID */ 1936145247Sdamien DPRINTF(("Setting mandatory BSSID to null\n")); 1937145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_MANDATORY_BSSID, NULL, 0); 1938145247Sdamien if (error != 0) 1939145247Sdamien return error; 1940145247Sdamien 1941145247Sdamien if (ic->ic_flags & IEEE80211_F_DESBSSID) { 1942145247Sdamien DPRINTF(("Setting desired BSSID to %6D\n", ic->ic_des_bssid, 1943145247Sdamien ":")); 1944145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_DESIRED_BSSID, 1945145247Sdamien ic->ic_des_bssid, IEEE80211_ADDR_LEN); 1946145247Sdamien if (error != 0) 1947145247Sdamien return error; 1948145247Sdamien } 1949145247Sdamien 1950145247Sdamien bzero(&security, sizeof security); 1951145247Sdamien security.authmode = (ic->ic_bss->ni_authmode == IEEE80211_AUTH_SHARED) ? 1952145247Sdamien IPW_AUTH_SHARED : IPW_AUTH_OPEN; 1953145247Sdamien security.ciphers = htole32(IPW_CIPHER_NONE); 1954145247Sdamien DPRINTF(("Setting authmode to %u\n", security.authmode)); 1955145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_SECURITY_INFORMATION, &security, 1956145247Sdamien sizeof security); 1957145247Sdamien if (error != 0) 1958145247Sdamien return error; 1959145247Sdamien 1960145247Sdamien if (ic->ic_flags & IEEE80211_F_PRIVACY) { 1961145247Sdamien k = ic->ic_crypto.cs_nw_keys; 1962145247Sdamien for (i = 0; i < IEEE80211_WEP_NKID; i++, k++) { 1963145247Sdamien if (k->wk_keylen == 0) 1964145247Sdamien continue; 1965145247Sdamien 1966145247Sdamien wepkey.idx = i; 1967145247Sdamien wepkey.len = k->wk_keylen; 1968145247Sdamien bzero(wepkey.key, sizeof wepkey.key); 1969145247Sdamien bcopy(k->wk_key, wepkey.key, k->wk_keylen); 1970145247Sdamien DPRINTF(("Setting wep key index %u len %u\n", 1971145247Sdamien wepkey.idx, wepkey.len)); 1972145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY, &wepkey, 1973145247Sdamien sizeof wepkey); 1974145247Sdamien if (error != 0) 1975145247Sdamien return error; 1976145247Sdamien } 1977145247Sdamien 1978145247Sdamien data = htole32(ic->ic_crypto.cs_def_txkey); 1979145247Sdamien DPRINTF(("Setting wep tx key index to %u\n", le32toh(data))); 1980145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_WEP_KEY_INDEX, &data, 1981145247Sdamien sizeof data); 1982145247Sdamien if (error != 0) 1983145247Sdamien return error; 1984145247Sdamien } 1985145247Sdamien 1986145247Sdamien data = htole32((ic->ic_flags & IEEE80211_F_PRIVACY) ? IPW_WEPON : 0); 1987145247Sdamien DPRINTF(("Setting wep flags to 0x%x\n", le32toh(data))); 1988145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_WEP_FLAGS, &data, sizeof data); 1989145247Sdamien if (error != 0) 1990145247Sdamien return error; 1991145247Sdamien 1992145247Sdamien#if 0 1993145247Sdamien struct ipw_wpa_ie ie; 1994145247Sdamien 1995145247Sdamien bzero(&ie, sizeof ie); 1996145247Sdamien ie.len = htole32(sizeof (struct ieee80211_ie_wpa)); 1997145247Sdamien DPRINTF(("Setting wpa ie\n")); 1998145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_WPA_IE, &ie, sizeof ie); 1999145247Sdamien if (error != 0) 2000145247Sdamien return error; 2001145247Sdamien#endif 2002145247Sdamien 2003145247Sdamien if (ic->ic_opmode == IEEE80211_M_IBSS) { 2004145247Sdamien data = htole32(ic->ic_lintval); 2005145247Sdamien DPRINTF(("Setting beacon interval to %u\n", le32toh(data))); 2006145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_BEACON_INTERVAL, &data, 2007145247Sdamien sizeof data); 2008145247Sdamien if (error != 0) 2009145247Sdamien return error; 2010145247Sdamien } 2011145247Sdamien 2012145247Sdamien options.flags = 0; 2013145247Sdamien options.channels = htole32(0x3fff); /* scan channels 1-14 */ 2014145247Sdamien DPRINTF(("Setting scan options to 0x%x\n", le32toh(options.flags))); 2015145247Sdamien error = ipw_cmd(sc, IPW_CMD_SET_SCAN_OPTIONS, &options, sizeof options); 2016145247Sdamien if (error != 0) 2017145247Sdamien return error; 2018145247Sdamien 2019145247Sdamien /* finally, enable adapter (start scanning for an access point) */ 2020145247Sdamien DPRINTF(("Enabling adapter\n")); 2021145247Sdamien return ipw_cmd(sc, IPW_CMD_ENABLE, NULL, 0); 2022145247Sdamien} 2023145247Sdamien 2024145247Sdamienstatic void 2025145247Sdamienipw_init(void *priv) 2026145247Sdamien{ 2027145247Sdamien struct ipw_softc *sc = priv; 2028145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 2029145247Sdamien struct ifnet *ifp = ic->ic_ifp; 2030145247Sdamien struct ipw_firmware *fw = &sc->fw; 2031145247Sdamien 2032145247Sdamien /* exit immediately if firmware has not been ioctl'd */ 2033145247Sdamien if (!(sc->flags & IPW_FLAG_FW_CACHED)) { 2034146849Savatar if (!(sc->flags & IPW_FLAG_FW_WARNED)) 2035146849Savatar device_printf(sc->sc_dev, "Please load firmware\n"); 2036146849Savatar sc->flags |= IPW_FLAG_FW_WARNED; 2037145247Sdamien ifp->if_flags &= ~IFF_UP; 2038145247Sdamien return; 2039145247Sdamien } 2040145247Sdamien 2041145247Sdamien ipw_stop(sc); 2042145247Sdamien 2043145247Sdamien if (ipw_reset(sc) != 0) { 2044145247Sdamien device_printf(sc->sc_dev, "could not reset adapter\n"); 2045145247Sdamien goto fail; 2046145247Sdamien } 2047145247Sdamien 2048145247Sdamien if (ipw_load_ucode(sc, fw->ucode, fw->ucode_size) != 0) { 2049145247Sdamien device_printf(sc->sc_dev, "could not load microcode\n"); 2050145247Sdamien goto fail; 2051145247Sdamien } 2052145247Sdamien 2053145247Sdamien ipw_stop_master(sc); 2054145247Sdamien 2055145247Sdamien /* 2056145247Sdamien * Setup tx, rx and status rings. 2057145247Sdamien */ 2058145247Sdamien sc->txold = IPW_NTBD - 1; 2059145247Sdamien sc->txcur = 0; 2060145247Sdamien sc->txfree = IPW_NTBD - 2; 2061145247Sdamien sc->rxcur = IPW_NRBD - 1; 2062145247Sdamien 2063145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_BASE, sc->tbd_phys); 2064145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_SIZE, IPW_NTBD); 2065145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_READ, 0); 2066145247Sdamien CSR_WRITE_4(sc, IPW_CSR_TX_WRITE, sc->txcur); 2067145247Sdamien 2068145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RX_BASE, sc->rbd_phys); 2069145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RX_SIZE, IPW_NRBD); 2070145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RX_READ, 0); 2071145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RX_WRITE, sc->rxcur); 2072145247Sdamien 2073145247Sdamien CSR_WRITE_4(sc, IPW_CSR_STATUS_BASE, sc->status_phys); 2074145247Sdamien 2075145247Sdamien if (ipw_load_firmware(sc, fw->main, fw->main_size) != 0) { 2076145247Sdamien device_printf(sc->sc_dev, "could not load firmware\n"); 2077145247Sdamien goto fail; 2078145247Sdamien } 2079145247Sdamien 2080145247Sdamien sc->flags |= IPW_FLAG_FW_INITED; 2081145247Sdamien 2082145247Sdamien /* retrieve information tables base addresses */ 2083145247Sdamien sc->table1_base = CSR_READ_4(sc, IPW_CSR_TABLE1_BASE); 2084145247Sdamien sc->table2_base = CSR_READ_4(sc, IPW_CSR_TABLE2_BASE); 2085145247Sdamien 2086145247Sdamien ipw_write_table1(sc, IPW_INFO_LOCK, 0); 2087145247Sdamien 2088145247Sdamien if (ipw_config(sc) != 0) { 2089145247Sdamien device_printf(sc->sc_dev, "device configuration failed\n"); 2090145247Sdamien goto fail; 2091145247Sdamien } 2092145247Sdamien 2093145247Sdamien ifp->if_flags &= ~IFF_OACTIVE; 2094145247Sdamien ifp->if_flags |= IFF_RUNNING; 2095145247Sdamien 2096145247Sdamien return; 2097145247Sdamien 2098145247Sdamienfail: ifp->if_flags &= ~IFF_UP; 2099145247Sdamien ipw_stop(sc); 2100145247Sdamien} 2101145247Sdamien 2102145247Sdamienstatic void 2103145247Sdamienipw_stop(void *priv) 2104145247Sdamien{ 2105145247Sdamien struct ipw_softc *sc = priv; 2106145247Sdamien struct ieee80211com *ic = &sc->sc_ic; 2107145247Sdamien struct ifnet *ifp = ic->ic_ifp; 2108145247Sdamien int i; 2109145247Sdamien 2110145247Sdamien ipw_stop_master(sc); 2111145247Sdamien 2112145247Sdamien CSR_WRITE_4(sc, IPW_CSR_RST, IPW_RST_SW_RESET); 2113145247Sdamien 2114145247Sdamien /* 2115145247Sdamien * Release tx buffers. 2116145247Sdamien */ 2117145247Sdamien for (i = 0; i < IPW_NTBD; i++) 2118145247Sdamien ipw_release_sbd(sc, &sc->stbd_list[i]); 2119145247Sdamien 2120145247Sdamien sc->sc_tx_timer = 0; 2121145247Sdamien ifp->if_timer = 0; 2122145247Sdamien ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2123145247Sdamien 2124145247Sdamien ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 2125145247Sdamien} 2126145247Sdamien 2127145247Sdamien#ifdef IPW_DEBUG 2128145247Sdamienstatic int 2129145247Sdamienipw_sysctl_stats(SYSCTL_HANDLER_ARGS) 2130145247Sdamien{ 2131145247Sdamien struct ipw_softc *sc = arg1; 2132145247Sdamien uint32_t i, size, buf[256]; 2133145247Sdamien 2134145247Sdamien if (!(sc->flags & IPW_FLAG_FW_INITED)) { 2135145247Sdamien bzero(buf, sizeof buf); 2136145247Sdamien return SYSCTL_OUT(req, buf, sizeof buf); 2137145247Sdamien } 2138145247Sdamien 2139145247Sdamien CSR_WRITE_4(sc, IPW_CSR_AUTOINC_ADDR, sc->table1_base); 2140145247Sdamien 2141145247Sdamien size = min(CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA), 256); 2142145247Sdamien for (i = 1; i < size; i++) 2143145247Sdamien buf[i] = MEM_READ_4(sc, CSR_READ_4(sc, IPW_CSR_AUTOINC_DATA)); 2144145247Sdamien 2145145247Sdamien return SYSCTL_OUT(req, buf, sizeof buf); 2146145247Sdamien} 2147145247Sdamien#endif 2148145247Sdamien 2149145247Sdamienstatic int 2150145247Sdamienipw_sysctl_radio(SYSCTL_HANDLER_ARGS) 2151145247Sdamien{ 2152145247Sdamien struct ipw_softc *sc = arg1; 2153145247Sdamien int val; 2154145247Sdamien 2155145247Sdamien val = !((sc->flags & IPW_FLAG_HAS_RADIO_SWITCH) && 2156145247Sdamien (CSR_READ_4(sc, IPW_CSR_IO) & IPW_IO_RADIO_DISABLED)); 2157145247Sdamien 2158145247Sdamien return SYSCTL_OUT(req, &val, sizeof val); 2159145247Sdamien} 2160145247Sdamien 2161145247Sdamienstatic uint32_t 2162145247Sdamienipw_read_table1(struct ipw_softc *sc, uint32_t off) 2163145247Sdamien{ 2164145247Sdamien return MEM_READ_4(sc, MEM_READ_4(sc, sc->table1_base + off)); 2165145247Sdamien} 2166145247Sdamien 2167145247Sdamienstatic void 2168145247Sdamienipw_write_table1(struct ipw_softc *sc, uint32_t off, uint32_t info) 2169145247Sdamien{ 2170145247Sdamien MEM_WRITE_4(sc, MEM_READ_4(sc, sc->table1_base + off), info); 2171145247Sdamien} 2172145247Sdamien 2173145247Sdamienstatic int 2174145247Sdamienipw_read_table2(struct ipw_softc *sc, uint32_t off, void *buf, uint32_t *len) 2175145247Sdamien{ 2176145247Sdamien uint32_t addr, info; 2177145247Sdamien uint16_t count, size; 2178145247Sdamien uint32_t total; 2179145247Sdamien 2180145247Sdamien /* addr[4] + count[2] + size[2] */ 2181145247Sdamien addr = MEM_READ_4(sc, sc->table2_base + off); 2182145247Sdamien info = MEM_READ_4(sc, sc->table2_base + off + 4); 2183145247Sdamien 2184145247Sdamien count = info >> 16; 2185145247Sdamien size = info & 0xffff; 2186145247Sdamien total = count * size; 2187145247Sdamien 2188145247Sdamien if (total > *len) { 2189145247Sdamien *len = total; 2190145247Sdamien return EINVAL; 2191145247Sdamien } 2192145247Sdamien 2193145247Sdamien *len = total; 2194145247Sdamien ipw_read_mem_1(sc, addr, buf, total); 2195145247Sdamien 2196145247Sdamien return 0; 2197145247Sdamien} 2198145247Sdamien 2199145247Sdamienstatic void 2200145247Sdamienipw_read_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap, 2201145247Sdamien bus_size_t count) 2202145247Sdamien{ 2203145247Sdamien for (; count > 0; offset++, datap++, count--) { 2204145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2205145247Sdamien *datap = CSR_READ_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3)); 2206145247Sdamien } 2207145247Sdamien} 2208145247Sdamien 2209145247Sdamienstatic void 2210145247Sdamienipw_write_mem_1(struct ipw_softc *sc, bus_size_t offset, uint8_t *datap, 2211145247Sdamien bus_size_t count) 2212145247Sdamien{ 2213145247Sdamien for (; count > 0; offset++, datap++, count--) { 2214145247Sdamien CSR_WRITE_4(sc, IPW_CSR_INDIRECT_ADDR, offset & ~3); 2215145247Sdamien CSR_WRITE_1(sc, IPW_CSR_INDIRECT_DATA + (offset & 3), *datap); 2216145247Sdamien } 2217145247Sdamien} 2218